Loading...
1/*
2* Host Controller Driver for the Elan Digital Systems U132 adapter
3*
4* Copyright(C) 2006 Elan Digital Systems Limited
5* http://www.elandigitalsystems.com
6*
7* Author and Maintainer - Tony Olech - Elan Digital Systems
8* tony.olech@elandigitalsystems.com
9*
10* This program is free software;you can redistribute it and/or
11* modify it under the terms of the GNU General Public License as
12* published by the Free Software Foundation, version 2.
13*
14*
15* This driver was written by Tony Olech(tony.olech@elandigitalsystems.com)
16* based on various USB host drivers in the 2.6.15 linux kernel
17* with constant reference to the 3rd Edition of Linux Device Drivers
18* published by O'Reilly
19*
20* The U132 adapter is a USB to CardBus adapter specifically designed
21* for PC cards that contain an OHCI host controller. Typical PC cards
22* are the Orange Mobile 3G Option GlobeTrotter Fusion card.
23*
24* The U132 adapter will *NOT *work with PC cards that do not contain
25* an OHCI controller. A simple way to test whether a PC card has an
26* OHCI controller as an interface is to insert the PC card directly
27* into a laptop(or desktop) with a CardBus slot and if "lspci" shows
28* a new USB controller and "lsusb -v" shows a new OHCI Host Controller
29* then there is a good chance that the U132 adapter will support the
30* PC card.(you also need the specific client driver for the PC card)
31*
32* Please inform the Author and Maintainer about any PC cards that
33* contain OHCI Host Controller and work when directly connected to
34* an embedded CardBus slot but do not work when they are connected
35* via an ELAN U132 adapter.
36*
37*/
38#include <linux/kernel.h>
39#include <linux/module.h>
40#include <linux/moduleparam.h>
41#include <linux/delay.h>
42#include <linux/ioport.h>
43#include <linux/pci_ids.h>
44#include <linux/sched.h>
45#include <linux/slab.h>
46#include <linux/errno.h>
47#include <linux/init.h>
48#include <linux/timer.h>
49#include <linux/list.h>
50#include <linux/interrupt.h>
51#include <linux/usb.h>
52#include <linux/usb/hcd.h>
53#include <linux/workqueue.h>
54#include <linux/platform_device.h>
55#include <linux/mutex.h>
56#include <asm/io.h>
57#include <asm/irq.h>
58#include <asm/system.h>
59#include <asm/byteorder.h>
60
61 /* FIXME ohci.h is ONLY for internal use by the OHCI driver.
62 * If you're going to try stuff like this, you need to split
63 * out shareable stuff (register declarations?) into its own
64 * file, maybe name <linux/usb/ohci.h>
65 */
66
67#include "ohci.h"
68#define OHCI_CONTROL_INIT OHCI_CTRL_CBSR
69#define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \
70 OHCI_INTR_WDH)
71MODULE_AUTHOR("Tony Olech - Elan Digital Systems Limited");
72MODULE_DESCRIPTION("U132 USB Host Controller Driver");
73MODULE_LICENSE("GPL");
74#define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444)
75INT_MODULE_PARM(testing, 0);
76/* Some boards misreport power switching/overcurrent*/
77static int distrust_firmware = 1;
78module_param(distrust_firmware, bool, 0);
79MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren"
80 "t setup");
81static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait);
82/*
83* u132_module_lock exists to protect access to global variables
84*
85*/
86static struct mutex u132_module_lock;
87static int u132_exiting;
88static int u132_instances;
89static struct list_head u132_static_list;
90/*
91* end of the global variables protected by u132_module_lock
92*/
93static struct workqueue_struct *workqueue;
94#define MAX_U132_PORTS 7
95#define MAX_U132_ADDRS 128
96#define MAX_U132_UDEVS 4
97#define MAX_U132_ENDPS 100
98#define MAX_U132_RINGS 4
99static const char *cc_to_text[16] = {
100 "No Error ",
101 "CRC Error ",
102 "Bit Stuff ",
103 "Data Togg ",
104 "Stall ",
105 "DevNotResp ",
106 "PIDCheck ",
107 "UnExpPID ",
108 "DataOver ",
109 "DataUnder ",
110 "(for hw) ",
111 "(for hw) ",
112 "BufferOver ",
113 "BuffUnder ",
114 "(for HCD) ",
115 "(for HCD) "
116};
117struct u132_port {
118 struct u132 *u132;
119 int reset;
120 int enable;
121 int power;
122 int Status;
123};
124struct u132_addr {
125 u8 address;
126};
127struct u132_udev {
128 struct kref kref;
129 struct usb_device *usb_device;
130 u8 enumeration;
131 u8 udev_number;
132 u8 usb_addr;
133 u8 portnumber;
134 u8 endp_number_in[16];
135 u8 endp_number_out[16];
136};
137#define ENDP_QUEUE_SHIFT 3
138#define ENDP_QUEUE_SIZE (1<<ENDP_QUEUE_SHIFT)
139#define ENDP_QUEUE_MASK (ENDP_QUEUE_SIZE-1)
140struct u132_urbq {
141 struct list_head urb_more;
142 struct urb *urb;
143};
144struct u132_spin {
145 spinlock_t slock;
146};
147struct u132_endp {
148 struct kref kref;
149 u8 udev_number;
150 u8 endp_number;
151 u8 usb_addr;
152 u8 usb_endp;
153 struct u132 *u132;
154 struct list_head endp_ring;
155 struct u132_ring *ring;
156 unsigned toggle_bits:2;
157 unsigned active:1;
158 unsigned delayed:1;
159 unsigned input:1;
160 unsigned output:1;
161 unsigned pipetype:2;
162 unsigned dequeueing:1;
163 unsigned edset_flush:1;
164 unsigned spare_bits:14;
165 unsigned long jiffies;
166 struct usb_host_endpoint *hep;
167 struct u132_spin queue_lock;
168 u16 queue_size;
169 u16 queue_last;
170 u16 queue_next;
171 struct urb *urb_list[ENDP_QUEUE_SIZE];
172 struct list_head urb_more;
173 struct delayed_work scheduler;
174};
175struct u132_ring {
176 unsigned in_use:1;
177 unsigned length:7;
178 u8 number;
179 struct u132 *u132;
180 struct u132_endp *curr_endp;
181 struct delayed_work scheduler;
182};
183struct u132 {
184 struct kref kref;
185 struct list_head u132_list;
186 struct mutex sw_lock;
187 struct mutex scheduler_lock;
188 struct u132_platform_data *board;
189 struct platform_device *platform_dev;
190 struct u132_ring ring[MAX_U132_RINGS];
191 int sequence_num;
192 int going;
193 int power;
194 int reset;
195 int num_ports;
196 u32 hc_control;
197 u32 hc_fminterval;
198 u32 hc_roothub_status;
199 u32 hc_roothub_a;
200 u32 hc_roothub_portstatus[MAX_ROOT_PORTS];
201 int flags;
202 unsigned long next_statechange;
203 struct delayed_work monitor;
204 int num_endpoints;
205 struct u132_addr addr[MAX_U132_ADDRS];
206 struct u132_udev udev[MAX_U132_UDEVS];
207 struct u132_port port[MAX_U132_PORTS];
208 struct u132_endp *endp[MAX_U132_ENDPS];
209};
210
211/*
212* these cannot be inlines because we need the structure offset!!
213* Does anyone have a better way?????
214*/
215#define ftdi_read_pcimem(pdev, member, data) usb_ftdi_elan_read_pcimem(pdev, \
216 offsetof(struct ohci_regs, member), 0, data);
217#define ftdi_write_pcimem(pdev, member, data) usb_ftdi_elan_write_pcimem(pdev, \
218 offsetof(struct ohci_regs, member), 0, data);
219#define u132_read_pcimem(u132, member, data) \
220 usb_ftdi_elan_read_pcimem(u132->platform_dev, offsetof(struct \
221 ohci_regs, member), 0, data);
222#define u132_write_pcimem(u132, member, data) \
223 usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \
224 ohci_regs, member), 0, data);
225static inline struct u132 *udev_to_u132(struct u132_udev *udev)
226{
227 u8 udev_number = udev->udev_number;
228 return container_of(udev, struct u132, udev[udev_number]);
229}
230
231static inline struct u132 *hcd_to_u132(struct usb_hcd *hcd)
232{
233 return (struct u132 *)(hcd->hcd_priv);
234}
235
236static inline struct usb_hcd *u132_to_hcd(struct u132 *u132)
237{
238 return container_of((void *)u132, struct usb_hcd, hcd_priv);
239}
240
241static inline void u132_disable(struct u132 *u132)
242{
243 u132_to_hcd(u132)->state = HC_STATE_HALT;
244}
245
246
247#define kref_to_u132(d) container_of(d, struct u132, kref)
248#define kref_to_u132_endp(d) container_of(d, struct u132_endp, kref)
249#define kref_to_u132_udev(d) container_of(d, struct u132_udev, kref)
250#include "../misc/usb_u132.h"
251static const char hcd_name[] = "u132_hcd";
252#define PORT_C_MASK ((USB_PORT_STAT_C_CONNECTION | USB_PORT_STAT_C_ENABLE | \
253 USB_PORT_STAT_C_SUSPEND | USB_PORT_STAT_C_OVERCURRENT | \
254 USB_PORT_STAT_C_RESET) << 16)
255static void u132_hcd_delete(struct kref *kref)
256{
257 struct u132 *u132 = kref_to_u132(kref);
258 struct platform_device *pdev = u132->platform_dev;
259 struct usb_hcd *hcd = u132_to_hcd(u132);
260 u132->going += 1;
261 mutex_lock(&u132_module_lock);
262 list_del_init(&u132->u132_list);
263 u132_instances -= 1;
264 mutex_unlock(&u132_module_lock);
265 dev_warn(&u132->platform_dev->dev, "FREEING the hcd=%p and thus the u13"
266 "2=%p going=%d pdev=%p\n", hcd, u132, u132->going, pdev);
267 usb_put_hcd(hcd);
268}
269
270static inline void u132_u132_put_kref(struct u132 *u132)
271{
272 kref_put(&u132->kref, u132_hcd_delete);
273}
274
275static inline void u132_u132_init_kref(struct u132 *u132)
276{
277 kref_init(&u132->kref);
278}
279
280static void u132_udev_delete(struct kref *kref)
281{
282 struct u132_udev *udev = kref_to_u132_udev(kref);
283 udev->udev_number = 0;
284 udev->usb_device = NULL;
285 udev->usb_addr = 0;
286 udev->enumeration = 0;
287}
288
289static inline void u132_udev_put_kref(struct u132 *u132, struct u132_udev *udev)
290{
291 kref_put(&udev->kref, u132_udev_delete);
292}
293
294static inline void u132_udev_get_kref(struct u132 *u132, struct u132_udev *udev)
295{
296 kref_get(&udev->kref);
297}
298
299static inline void u132_udev_init_kref(struct u132 *u132,
300 struct u132_udev *udev)
301{
302 kref_init(&udev->kref);
303}
304
305static inline void u132_ring_put_kref(struct u132 *u132, struct u132_ring *ring)
306{
307 kref_put(&u132->kref, u132_hcd_delete);
308}
309
310static void u132_ring_requeue_work(struct u132 *u132, struct u132_ring *ring,
311 unsigned int delta)
312{
313 if (delta > 0) {
314 if (queue_delayed_work(workqueue, &ring->scheduler, delta))
315 return;
316 } else if (queue_delayed_work(workqueue, &ring->scheduler, 0))
317 return;
318 kref_put(&u132->kref, u132_hcd_delete);
319}
320
321static void u132_ring_queue_work(struct u132 *u132, struct u132_ring *ring,
322 unsigned int delta)
323{
324 kref_get(&u132->kref);
325 u132_ring_requeue_work(u132, ring, delta);
326}
327
328static void u132_ring_cancel_work(struct u132 *u132, struct u132_ring *ring)
329{
330 if (cancel_delayed_work(&ring->scheduler))
331 kref_put(&u132->kref, u132_hcd_delete);
332}
333
334static void u132_endp_delete(struct kref *kref)
335{
336 struct u132_endp *endp = kref_to_u132_endp(kref);
337 struct u132 *u132 = endp->u132;
338 u8 usb_addr = endp->usb_addr;
339 u8 usb_endp = endp->usb_endp;
340 u8 address = u132->addr[usb_addr].address;
341 struct u132_udev *udev = &u132->udev[address];
342 u8 endp_number = endp->endp_number;
343 struct usb_host_endpoint *hep = endp->hep;
344 struct u132_ring *ring = endp->ring;
345 struct list_head *head = &endp->endp_ring;
346 ring->length -= 1;
347 if (endp == ring->curr_endp) {
348 if (list_empty(head)) {
349 ring->curr_endp = NULL;
350 list_del(head);
351 } else {
352 struct u132_endp *next_endp = list_entry(head->next,
353 struct u132_endp, endp_ring);
354 ring->curr_endp = next_endp;
355 list_del(head);
356 }
357 } else
358 list_del(head);
359 if (endp->input) {
360 udev->endp_number_in[usb_endp] = 0;
361 u132_udev_put_kref(u132, udev);
362 }
363 if (endp->output) {
364 udev->endp_number_out[usb_endp] = 0;
365 u132_udev_put_kref(u132, udev);
366 }
367 u132->endp[endp_number - 1] = NULL;
368 hep->hcpriv = NULL;
369 kfree(endp);
370 u132_u132_put_kref(u132);
371}
372
373static inline void u132_endp_put_kref(struct u132 *u132, struct u132_endp *endp)
374{
375 kref_put(&endp->kref, u132_endp_delete);
376}
377
378static inline void u132_endp_get_kref(struct u132 *u132, struct u132_endp *endp)
379{
380 kref_get(&endp->kref);
381}
382
383static inline void u132_endp_init_kref(struct u132 *u132,
384 struct u132_endp *endp)
385{
386 kref_init(&endp->kref);
387 kref_get(&u132->kref);
388}
389
390static void u132_endp_queue_work(struct u132 *u132, struct u132_endp *endp,
391 unsigned int delta)
392{
393 if (queue_delayed_work(workqueue, &endp->scheduler, delta))
394 kref_get(&endp->kref);
395}
396
397static void u132_endp_cancel_work(struct u132 *u132, struct u132_endp *endp)
398{
399 if (cancel_delayed_work(&endp->scheduler))
400 kref_put(&endp->kref, u132_endp_delete);
401}
402
403static inline void u132_monitor_put_kref(struct u132 *u132)
404{
405 kref_put(&u132->kref, u132_hcd_delete);
406}
407
408static void u132_monitor_queue_work(struct u132 *u132, unsigned int delta)
409{
410 if (queue_delayed_work(workqueue, &u132->monitor, delta))
411 kref_get(&u132->kref);
412}
413
414static void u132_monitor_requeue_work(struct u132 *u132, unsigned int delta)
415{
416 if (!queue_delayed_work(workqueue, &u132->monitor, delta))
417 kref_put(&u132->kref, u132_hcd_delete);
418}
419
420static void u132_monitor_cancel_work(struct u132 *u132)
421{
422 if (cancel_delayed_work(&u132->monitor))
423 kref_put(&u132->kref, u132_hcd_delete);
424}
425
426static int read_roothub_info(struct u132 *u132)
427{
428 u32 revision;
429 int retval;
430 retval = u132_read_pcimem(u132, revision, &revision);
431 if (retval) {
432 dev_err(&u132->platform_dev->dev, "error %d accessing device co"
433 "ntrol\n", retval);
434 return retval;
435 } else if ((revision & 0xFF) == 0x10) {
436 } else if ((revision & 0xFF) == 0x11) {
437 } else {
438 dev_err(&u132->platform_dev->dev, "device revision is not valid"
439 " %08X\n", revision);
440 return -ENODEV;
441 }
442 retval = u132_read_pcimem(u132, control, &u132->hc_control);
443 if (retval) {
444 dev_err(&u132->platform_dev->dev, "error %d accessing device co"
445 "ntrol\n", retval);
446 return retval;
447 }
448 retval = u132_read_pcimem(u132, roothub.status,
449 &u132->hc_roothub_status);
450 if (retval) {
451 dev_err(&u132->platform_dev->dev, "error %d accessing device re"
452 "g roothub.status\n", retval);
453 return retval;
454 }
455 retval = u132_read_pcimem(u132, roothub.a, &u132->hc_roothub_a);
456 if (retval) {
457 dev_err(&u132->platform_dev->dev, "error %d accessing device re"
458 "g roothub.a\n", retval);
459 return retval;
460 }
461 {
462 int I = u132->num_ports;
463 int i = 0;
464 while (I-- > 0) {
465 retval = u132_read_pcimem(u132, roothub.portstatus[i],
466 &u132->hc_roothub_portstatus[i]);
467 if (retval) {
468 dev_err(&u132->platform_dev->dev, "error %d acc"
469 "essing device roothub.portstatus[%d]\n"
470 , retval, i);
471 return retval;
472 } else
473 i += 1;
474 }
475 }
476 return 0;
477}
478
479static void u132_hcd_monitor_work(struct work_struct *work)
480{
481 struct u132 *u132 = container_of(work, struct u132, monitor.work);
482 if (u132->going > 1) {
483 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
484 , u132->going);
485 u132_monitor_put_kref(u132);
486 return;
487 } else if (u132->going > 0) {
488 dev_err(&u132->platform_dev->dev, "device is being removed\n");
489 u132_monitor_put_kref(u132);
490 return;
491 } else {
492 int retval;
493 mutex_lock(&u132->sw_lock);
494 retval = read_roothub_info(u132);
495 if (retval) {
496 struct usb_hcd *hcd = u132_to_hcd(u132);
497 u132_disable(u132);
498 u132->going = 1;
499 mutex_unlock(&u132->sw_lock);
500 usb_hc_died(hcd);
501 ftdi_elan_gone_away(u132->platform_dev);
502 u132_monitor_put_kref(u132);
503 return;
504 } else {
505 u132_monitor_requeue_work(u132, 500);
506 mutex_unlock(&u132->sw_lock);
507 return;
508 }
509 }
510}
511
512static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp,
513 struct urb *urb, int status)
514{
515 struct u132_ring *ring;
516 unsigned long irqs;
517 struct usb_hcd *hcd = u132_to_hcd(u132);
518 urb->error_count = 0;
519 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
520 usb_hcd_unlink_urb_from_ep(hcd, urb);
521 endp->queue_next += 1;
522 if (ENDP_QUEUE_SIZE > --endp->queue_size) {
523 endp->active = 0;
524 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
525 } else {
526 struct list_head *next = endp->urb_more.next;
527 struct u132_urbq *urbq = list_entry(next, struct u132_urbq,
528 urb_more);
529 list_del(next);
530 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
531 urbq->urb;
532 endp->active = 0;
533 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
534 kfree(urbq);
535 }
536 mutex_lock(&u132->scheduler_lock);
537 ring = endp->ring;
538 ring->in_use = 0;
539 u132_ring_cancel_work(u132, ring);
540 u132_ring_queue_work(u132, ring, 0);
541 mutex_unlock(&u132->scheduler_lock);
542 u132_endp_put_kref(u132, endp);
543 usb_hcd_giveback_urb(hcd, urb, status);
544}
545
546static void u132_hcd_forget_urb(struct u132 *u132, struct u132_endp *endp,
547 struct urb *urb, int status)
548{
549 u132_endp_put_kref(u132, endp);
550}
551
552static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp,
553 struct urb *urb, int status)
554{
555 unsigned long irqs;
556 struct usb_hcd *hcd = u132_to_hcd(u132);
557 urb->error_count = 0;
558 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
559 usb_hcd_unlink_urb_from_ep(hcd, urb);
560 endp->queue_next += 1;
561 if (ENDP_QUEUE_SIZE > --endp->queue_size) {
562 endp->active = 0;
563 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
564 } else {
565 struct list_head *next = endp->urb_more.next;
566 struct u132_urbq *urbq = list_entry(next, struct u132_urbq,
567 urb_more);
568 list_del(next);
569 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
570 urbq->urb;
571 endp->active = 0;
572 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
573 kfree(urbq);
574 }
575 usb_hcd_giveback_urb(hcd, urb, status);
576}
577
578static inline int edset_input(struct u132 *u132, struct u132_ring *ring,
579 struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
580 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
581 int toggle_bits, int error_count, int condition_code, int repeat_number,
582 int halted, int skipped, int actual, int non_null))
583{
584 return usb_ftdi_elan_edset_input(u132->platform_dev, ring->number, endp,
585 urb, address, endp->usb_endp, toggle_bits, callback);
586}
587
588static inline int edset_setup(struct u132 *u132, struct u132_ring *ring,
589 struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
590 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
591 int toggle_bits, int error_count, int condition_code, int repeat_number,
592 int halted, int skipped, int actual, int non_null))
593{
594 return usb_ftdi_elan_edset_setup(u132->platform_dev, ring->number, endp,
595 urb, address, endp->usb_endp, toggle_bits, callback);
596}
597
598static inline int edset_single(struct u132 *u132, struct u132_ring *ring,
599 struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
600 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
601 int toggle_bits, int error_count, int condition_code, int repeat_number,
602 int halted, int skipped, int actual, int non_null))
603{
604 return usb_ftdi_elan_edset_single(u132->platform_dev, ring->number,
605 endp, urb, address, endp->usb_endp, toggle_bits, callback);
606}
607
608static inline int edset_output(struct u132 *u132, struct u132_ring *ring,
609 struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
610 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
611 int toggle_bits, int error_count, int condition_code, int repeat_number,
612 int halted, int skipped, int actual, int non_null))
613{
614 return usb_ftdi_elan_edset_output(u132->platform_dev, ring->number,
615 endp, urb, address, endp->usb_endp, toggle_bits, callback);
616}
617
618
619/*
620* must not LOCK sw_lock
621*
622*/
623static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf,
624 int len, int toggle_bits, int error_count, int condition_code,
625 int repeat_number, int halted, int skipped, int actual, int non_null)
626{
627 struct u132_endp *endp = data;
628 struct u132 *u132 = endp->u132;
629 u8 address = u132->addr[endp->usb_addr].address;
630 struct u132_udev *udev = &u132->udev[address];
631 mutex_lock(&u132->scheduler_lock);
632 if (u132->going > 1) {
633 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
634 , u132->going);
635 mutex_unlock(&u132->scheduler_lock);
636 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
637 return;
638 } else if (endp->dequeueing) {
639 endp->dequeueing = 0;
640 mutex_unlock(&u132->scheduler_lock);
641 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
642 return;
643 } else if (u132->going > 0) {
644 dev_err(&u132->platform_dev->dev, "device is being removed "
645 "urb=%p\n", urb);
646 mutex_unlock(&u132->scheduler_lock);
647 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
648 return;
649 } else if (!urb->unlinked) {
650 struct u132_ring *ring = endp->ring;
651 u8 *u = urb->transfer_buffer + urb->actual_length;
652 u8 *b = buf;
653 int L = len;
654
655 while (L-- > 0)
656 *u++ = *b++;
657
658 urb->actual_length += len;
659 if ((condition_code == TD_CC_NOERROR) &&
660 (urb->transfer_buffer_length > urb->actual_length)) {
661 endp->toggle_bits = toggle_bits;
662 usb_settoggle(udev->usb_device, endp->usb_endp, 0,
663 1 & toggle_bits);
664 if (urb->actual_length > 0) {
665 int retval;
666 mutex_unlock(&u132->scheduler_lock);
667 retval = edset_single(u132, ring, endp, urb,
668 address, endp->toggle_bits,
669 u132_hcd_interrupt_recv);
670 if (retval != 0)
671 u132_hcd_giveback_urb(u132, endp, urb,
672 retval);
673 } else {
674 ring->in_use = 0;
675 endp->active = 0;
676 endp->jiffies = jiffies +
677 msecs_to_jiffies(urb->interval);
678 u132_ring_cancel_work(u132, ring);
679 u132_ring_queue_work(u132, ring, 0);
680 mutex_unlock(&u132->scheduler_lock);
681 u132_endp_put_kref(u132, endp);
682 }
683 return;
684 } else if ((condition_code == TD_DATAUNDERRUN) &&
685 ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) {
686 endp->toggle_bits = toggle_bits;
687 usb_settoggle(udev->usb_device, endp->usb_endp, 0,
688 1 & toggle_bits);
689 mutex_unlock(&u132->scheduler_lock);
690 u132_hcd_giveback_urb(u132, endp, urb, 0);
691 return;
692 } else {
693 if (condition_code == TD_CC_NOERROR) {
694 endp->toggle_bits = toggle_bits;
695 usb_settoggle(udev->usb_device, endp->usb_endp,
696 0, 1 & toggle_bits);
697 } else if (condition_code == TD_CC_STALL) {
698 endp->toggle_bits = 0x2;
699 usb_settoggle(udev->usb_device, endp->usb_endp,
700 0, 0);
701 } else {
702 endp->toggle_bits = 0x2;
703 usb_settoggle(udev->usb_device, endp->usb_endp,
704 0, 0);
705 dev_err(&u132->platform_dev->dev, "urb=%p givin"
706 "g back INTERRUPT %s\n", urb,
707 cc_to_text[condition_code]);
708 }
709 mutex_unlock(&u132->scheduler_lock);
710 u132_hcd_giveback_urb(u132, endp, urb,
711 cc_to_error[condition_code]);
712 return;
713 }
714 } else {
715 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
716 "unlinked=%d\n", urb, urb->unlinked);
717 mutex_unlock(&u132->scheduler_lock);
718 u132_hcd_giveback_urb(u132, endp, urb, 0);
719 return;
720 }
721}
722
723static void u132_hcd_bulk_output_sent(void *data, struct urb *urb, u8 *buf,
724 int len, int toggle_bits, int error_count, int condition_code,
725 int repeat_number, int halted, int skipped, int actual, int non_null)
726{
727 struct u132_endp *endp = data;
728 struct u132 *u132 = endp->u132;
729 u8 address = u132->addr[endp->usb_addr].address;
730 mutex_lock(&u132->scheduler_lock);
731 if (u132->going > 1) {
732 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
733 , u132->going);
734 mutex_unlock(&u132->scheduler_lock);
735 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
736 return;
737 } else if (endp->dequeueing) {
738 endp->dequeueing = 0;
739 mutex_unlock(&u132->scheduler_lock);
740 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
741 return;
742 } else if (u132->going > 0) {
743 dev_err(&u132->platform_dev->dev, "device is being removed "
744 "urb=%p\n", urb);
745 mutex_unlock(&u132->scheduler_lock);
746 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
747 return;
748 } else if (!urb->unlinked) {
749 struct u132_ring *ring = endp->ring;
750 urb->actual_length += len;
751 endp->toggle_bits = toggle_bits;
752 if (urb->transfer_buffer_length > urb->actual_length) {
753 int retval;
754 mutex_unlock(&u132->scheduler_lock);
755 retval = edset_output(u132, ring, endp, urb, address,
756 endp->toggle_bits, u132_hcd_bulk_output_sent);
757 if (retval != 0)
758 u132_hcd_giveback_urb(u132, endp, urb, retval);
759 return;
760 } else {
761 mutex_unlock(&u132->scheduler_lock);
762 u132_hcd_giveback_urb(u132, endp, urb, 0);
763 return;
764 }
765 } else {
766 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
767 "unlinked=%d\n", urb, urb->unlinked);
768 mutex_unlock(&u132->scheduler_lock);
769 u132_hcd_giveback_urb(u132, endp, urb, 0);
770 return;
771 }
772}
773
774static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf,
775 int len, int toggle_bits, int error_count, int condition_code,
776 int repeat_number, int halted, int skipped, int actual, int non_null)
777{
778 struct u132_endp *endp = data;
779 struct u132 *u132 = endp->u132;
780 u8 address = u132->addr[endp->usb_addr].address;
781 struct u132_udev *udev = &u132->udev[address];
782 mutex_lock(&u132->scheduler_lock);
783 if (u132->going > 1) {
784 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
785 , u132->going);
786 mutex_unlock(&u132->scheduler_lock);
787 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
788 return;
789 } else if (endp->dequeueing) {
790 endp->dequeueing = 0;
791 mutex_unlock(&u132->scheduler_lock);
792 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
793 return;
794 } else if (u132->going > 0) {
795 dev_err(&u132->platform_dev->dev, "device is being removed "
796 "urb=%p\n", urb);
797 mutex_unlock(&u132->scheduler_lock);
798 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
799 return;
800 } else if (!urb->unlinked) {
801 struct u132_ring *ring = endp->ring;
802 u8 *u = urb->transfer_buffer + urb->actual_length;
803 u8 *b = buf;
804 int L = len;
805
806 while (L-- > 0)
807 *u++ = *b++;
808
809 urb->actual_length += len;
810 if ((condition_code == TD_CC_NOERROR) &&
811 (urb->transfer_buffer_length > urb->actual_length)) {
812 int retval;
813 endp->toggle_bits = toggle_bits;
814 usb_settoggle(udev->usb_device, endp->usb_endp, 0,
815 1 & toggle_bits);
816 mutex_unlock(&u132->scheduler_lock);
817 retval = usb_ftdi_elan_edset_input(u132->platform_dev,
818 ring->number, endp, urb, address,
819 endp->usb_endp, endp->toggle_bits,
820 u132_hcd_bulk_input_recv);
821 if (retval != 0)
822 u132_hcd_giveback_urb(u132, endp, urb, retval);
823 return;
824 } else if (condition_code == TD_CC_NOERROR) {
825 endp->toggle_bits = toggle_bits;
826 usb_settoggle(udev->usb_device, endp->usb_endp, 0,
827 1 & toggle_bits);
828 mutex_unlock(&u132->scheduler_lock);
829 u132_hcd_giveback_urb(u132, endp, urb,
830 cc_to_error[condition_code]);
831 return;
832 } else if ((condition_code == TD_DATAUNDERRUN) &&
833 ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) {
834 endp->toggle_bits = toggle_bits;
835 usb_settoggle(udev->usb_device, endp->usb_endp, 0,
836 1 & toggle_bits);
837 mutex_unlock(&u132->scheduler_lock);
838 u132_hcd_giveback_urb(u132, endp, urb, 0);
839 return;
840 } else if (condition_code == TD_DATAUNDERRUN) {
841 endp->toggle_bits = toggle_bits;
842 usb_settoggle(udev->usb_device, endp->usb_endp, 0,
843 1 & toggle_bits);
844 dev_warn(&u132->platform_dev->dev, "urb=%p(SHORT NOT OK"
845 ") giving back BULK IN %s\n", urb,
846 cc_to_text[condition_code]);
847 mutex_unlock(&u132->scheduler_lock);
848 u132_hcd_giveback_urb(u132, endp, urb, 0);
849 return;
850 } else if (condition_code == TD_CC_STALL) {
851 endp->toggle_bits = 0x2;
852 usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0);
853 mutex_unlock(&u132->scheduler_lock);
854 u132_hcd_giveback_urb(u132, endp, urb,
855 cc_to_error[condition_code]);
856 return;
857 } else {
858 endp->toggle_bits = 0x2;
859 usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0);
860 dev_err(&u132->platform_dev->dev, "urb=%p giving back B"
861 "ULK IN code=%d %s\n", urb, condition_code,
862 cc_to_text[condition_code]);
863 mutex_unlock(&u132->scheduler_lock);
864 u132_hcd_giveback_urb(u132, endp, urb,
865 cc_to_error[condition_code]);
866 return;
867 }
868 } else {
869 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
870 "unlinked=%d\n", urb, urb->unlinked);
871 mutex_unlock(&u132->scheduler_lock);
872 u132_hcd_giveback_urb(u132, endp, urb, 0);
873 return;
874 }
875}
876
877static void u132_hcd_configure_empty_sent(void *data, struct urb *urb, u8 *buf,
878 int len, int toggle_bits, int error_count, int condition_code,
879 int repeat_number, int halted, int skipped, int actual, int non_null)
880{
881 struct u132_endp *endp = data;
882 struct u132 *u132 = endp->u132;
883 mutex_lock(&u132->scheduler_lock);
884 if (u132->going > 1) {
885 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
886 , u132->going);
887 mutex_unlock(&u132->scheduler_lock);
888 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
889 return;
890 } else if (endp->dequeueing) {
891 endp->dequeueing = 0;
892 mutex_unlock(&u132->scheduler_lock);
893 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
894 return;
895 } else if (u132->going > 0) {
896 dev_err(&u132->platform_dev->dev, "device is being removed "
897 "urb=%p\n", urb);
898 mutex_unlock(&u132->scheduler_lock);
899 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
900 return;
901 } else if (!urb->unlinked) {
902 mutex_unlock(&u132->scheduler_lock);
903 u132_hcd_giveback_urb(u132, endp, urb, 0);
904 return;
905 } else {
906 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
907 "unlinked=%d\n", urb, urb->unlinked);
908 mutex_unlock(&u132->scheduler_lock);
909 u132_hcd_giveback_urb(u132, endp, urb, 0);
910 return;
911 }
912}
913
914static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf,
915 int len, int toggle_bits, int error_count, int condition_code,
916 int repeat_number, int halted, int skipped, int actual, int non_null)
917{
918 struct u132_endp *endp = data;
919 struct u132 *u132 = endp->u132;
920 u8 address = u132->addr[endp->usb_addr].address;
921 mutex_lock(&u132->scheduler_lock);
922 if (u132->going > 1) {
923 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
924 , u132->going);
925 mutex_unlock(&u132->scheduler_lock);
926 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
927 return;
928 } else if (endp->dequeueing) {
929 endp->dequeueing = 0;
930 mutex_unlock(&u132->scheduler_lock);
931 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
932 return;
933 } else if (u132->going > 0) {
934 dev_err(&u132->platform_dev->dev, "device is being removed "
935 "urb=%p\n", urb);
936 mutex_unlock(&u132->scheduler_lock);
937 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
938 return;
939 } else if (!urb->unlinked) {
940 struct u132_ring *ring = endp->ring;
941 u8 *u = urb->transfer_buffer;
942 u8 *b = buf;
943 int L = len;
944
945 while (L-- > 0)
946 *u++ = *b++;
947
948 urb->actual_length = len;
949 if ((condition_code == TD_CC_NOERROR) || ((condition_code ==
950 TD_DATAUNDERRUN) && ((urb->transfer_flags &
951 URB_SHORT_NOT_OK) == 0))) {
952 int retval;
953 mutex_unlock(&u132->scheduler_lock);
954 retval = usb_ftdi_elan_edset_empty(u132->platform_dev,
955 ring->number, endp, urb, address,
956 endp->usb_endp, 0x3,
957 u132_hcd_configure_empty_sent);
958 if (retval != 0)
959 u132_hcd_giveback_urb(u132, endp, urb, retval);
960 return;
961 } else if (condition_code == TD_CC_STALL) {
962 mutex_unlock(&u132->scheduler_lock);
963 dev_warn(&u132->platform_dev->dev, "giving back SETUP I"
964 "NPUT STALL urb %p\n", urb);
965 u132_hcd_giveback_urb(u132, endp, urb,
966 cc_to_error[condition_code]);
967 return;
968 } else {
969 mutex_unlock(&u132->scheduler_lock);
970 dev_err(&u132->platform_dev->dev, "giving back SETUP IN"
971 "PUT %s urb %p\n", cc_to_text[condition_code],
972 urb);
973 u132_hcd_giveback_urb(u132, endp, urb,
974 cc_to_error[condition_code]);
975 return;
976 }
977 } else {
978 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
979 "unlinked=%d\n", urb, urb->unlinked);
980 mutex_unlock(&u132->scheduler_lock);
981 u132_hcd_giveback_urb(u132, endp, urb, 0);
982 return;
983 }
984}
985
986static void u132_hcd_configure_empty_recv(void *data, struct urb *urb, u8 *buf,
987 int len, int toggle_bits, int error_count, int condition_code,
988 int repeat_number, int halted, int skipped, int actual, int non_null)
989{
990 struct u132_endp *endp = data;
991 struct u132 *u132 = endp->u132;
992 mutex_lock(&u132->scheduler_lock);
993 if (u132->going > 1) {
994 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
995 , u132->going);
996 mutex_unlock(&u132->scheduler_lock);
997 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
998 return;
999 } else if (endp->dequeueing) {
1000 endp->dequeueing = 0;
1001 mutex_unlock(&u132->scheduler_lock);
1002 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1003 return;
1004 } else if (u132->going > 0) {
1005 dev_err(&u132->platform_dev->dev, "device is being removed "
1006 "urb=%p\n", urb);
1007 mutex_unlock(&u132->scheduler_lock);
1008 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1009 return;
1010 } else if (!urb->unlinked) {
1011 mutex_unlock(&u132->scheduler_lock);
1012 u132_hcd_giveback_urb(u132, endp, urb, 0);
1013 return;
1014 } else {
1015 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
1016 "unlinked=%d\n", urb, urb->unlinked);
1017 mutex_unlock(&u132->scheduler_lock);
1018 u132_hcd_giveback_urb(u132, endp, urb, 0);
1019 return;
1020 }
1021}
1022
1023static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf,
1024 int len, int toggle_bits, int error_count, int condition_code,
1025 int repeat_number, int halted, int skipped, int actual, int non_null)
1026{
1027 struct u132_endp *endp = data;
1028 struct u132 *u132 = endp->u132;
1029 u8 address = u132->addr[endp->usb_addr].address;
1030 mutex_lock(&u132->scheduler_lock);
1031 if (u132->going > 1) {
1032 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1033 , u132->going);
1034 mutex_unlock(&u132->scheduler_lock);
1035 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1036 return;
1037 } else if (endp->dequeueing) {
1038 endp->dequeueing = 0;
1039 mutex_unlock(&u132->scheduler_lock);
1040 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1041 return;
1042 } else if (u132->going > 0) {
1043 dev_err(&u132->platform_dev->dev, "device is being removed "
1044 "urb=%p\n", urb);
1045 mutex_unlock(&u132->scheduler_lock);
1046 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1047 return;
1048 } else if (!urb->unlinked) {
1049 if (usb_pipein(urb->pipe)) {
1050 int retval;
1051 struct u132_ring *ring = endp->ring;
1052 mutex_unlock(&u132->scheduler_lock);
1053 retval = usb_ftdi_elan_edset_input(u132->platform_dev,
1054 ring->number, endp, urb, address,
1055 endp->usb_endp, 0,
1056 u132_hcd_configure_input_recv);
1057 if (retval != 0)
1058 u132_hcd_giveback_urb(u132, endp, urb, retval);
1059 return;
1060 } else {
1061 int retval;
1062 struct u132_ring *ring = endp->ring;
1063 mutex_unlock(&u132->scheduler_lock);
1064 retval = usb_ftdi_elan_edset_input(u132->platform_dev,
1065 ring->number, endp, urb, address,
1066 endp->usb_endp, 0,
1067 u132_hcd_configure_empty_recv);
1068 if (retval != 0)
1069 u132_hcd_giveback_urb(u132, endp, urb, retval);
1070 return;
1071 }
1072 } else {
1073 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
1074 "unlinked=%d\n", urb, urb->unlinked);
1075 mutex_unlock(&u132->scheduler_lock);
1076 u132_hcd_giveback_urb(u132, endp, urb, 0);
1077 return;
1078 }
1079}
1080
1081static void u132_hcd_enumeration_empty_recv(void *data, struct urb *urb,
1082 u8 *buf, int len, int toggle_bits, int error_count, int condition_code,
1083 int repeat_number, int halted, int skipped, int actual, int non_null)
1084{
1085 struct u132_endp *endp = data;
1086 struct u132 *u132 = endp->u132;
1087 u8 address = u132->addr[endp->usb_addr].address;
1088 struct u132_udev *udev = &u132->udev[address];
1089 mutex_lock(&u132->scheduler_lock);
1090 if (u132->going > 1) {
1091 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1092 , u132->going);
1093 mutex_unlock(&u132->scheduler_lock);
1094 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1095 return;
1096 } else if (endp->dequeueing) {
1097 endp->dequeueing = 0;
1098 mutex_unlock(&u132->scheduler_lock);
1099 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1100 return;
1101 } else if (u132->going > 0) {
1102 dev_err(&u132->platform_dev->dev, "device is being removed "
1103 "urb=%p\n", urb);
1104 mutex_unlock(&u132->scheduler_lock);
1105 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1106 return;
1107 } else if (!urb->unlinked) {
1108 u132->addr[0].address = 0;
1109 endp->usb_addr = udev->usb_addr;
1110 mutex_unlock(&u132->scheduler_lock);
1111 u132_hcd_giveback_urb(u132, endp, urb, 0);
1112 return;
1113 } else {
1114 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
1115 "unlinked=%d\n", urb, urb->unlinked);
1116 mutex_unlock(&u132->scheduler_lock);
1117 u132_hcd_giveback_urb(u132, endp, urb, 0);
1118 return;
1119 }
1120}
1121
1122static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb,
1123 u8 *buf, int len, int toggle_bits, int error_count, int condition_code,
1124 int repeat_number, int halted, int skipped, int actual, int non_null)
1125{
1126 struct u132_endp *endp = data;
1127 struct u132 *u132 = endp->u132;
1128 mutex_lock(&u132->scheduler_lock);
1129 if (u132->going > 1) {
1130 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1131 , u132->going);
1132 mutex_unlock(&u132->scheduler_lock);
1133 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1134 return;
1135 } else if (endp->dequeueing) {
1136 endp->dequeueing = 0;
1137 mutex_unlock(&u132->scheduler_lock);
1138 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1139 return;
1140 } else if (u132->going > 0) {
1141 dev_err(&u132->platform_dev->dev, "device is being removed "
1142 "urb=%p\n", urb);
1143 mutex_unlock(&u132->scheduler_lock);
1144 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1145 return;
1146 } else if (!urb->unlinked) {
1147 int retval;
1148 struct u132_ring *ring = endp->ring;
1149 mutex_unlock(&u132->scheduler_lock);
1150 retval = usb_ftdi_elan_edset_input(u132->platform_dev,
1151 ring->number, endp, urb, 0, endp->usb_endp, 0,
1152 u132_hcd_enumeration_empty_recv);
1153 if (retval != 0)
1154 u132_hcd_giveback_urb(u132, endp, urb, retval);
1155 return;
1156 } else {
1157 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
1158 "unlinked=%d\n", urb, urb->unlinked);
1159 mutex_unlock(&u132->scheduler_lock);
1160 u132_hcd_giveback_urb(u132, endp, urb, 0);
1161 return;
1162 }
1163}
1164
1165static void u132_hcd_initial_empty_sent(void *data, struct urb *urb, u8 *buf,
1166 int len, int toggle_bits, int error_count, int condition_code,
1167 int repeat_number, int halted, int skipped, int actual, int non_null)
1168{
1169 struct u132_endp *endp = data;
1170 struct u132 *u132 = endp->u132;
1171 mutex_lock(&u132->scheduler_lock);
1172 if (u132->going > 1) {
1173 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1174 , u132->going);
1175 mutex_unlock(&u132->scheduler_lock);
1176 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1177 return;
1178 } else if (endp->dequeueing) {
1179 endp->dequeueing = 0;
1180 mutex_unlock(&u132->scheduler_lock);
1181 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1182 return;
1183 } else if (u132->going > 0) {
1184 dev_err(&u132->platform_dev->dev, "device is being removed "
1185 "urb=%p\n", urb);
1186 mutex_unlock(&u132->scheduler_lock);
1187 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1188 return;
1189 } else if (!urb->unlinked) {
1190 mutex_unlock(&u132->scheduler_lock);
1191 u132_hcd_giveback_urb(u132, endp, urb, 0);
1192 return;
1193 } else {
1194 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
1195 "unlinked=%d\n", urb, urb->unlinked);
1196 mutex_unlock(&u132->scheduler_lock);
1197 u132_hcd_giveback_urb(u132, endp, urb, 0);
1198 return;
1199 }
1200}
1201
1202static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf,
1203 int len, int toggle_bits, int error_count, int condition_code,
1204 int repeat_number, int halted, int skipped, int actual, int non_null)
1205{
1206 struct u132_endp *endp = data;
1207 struct u132 *u132 = endp->u132;
1208 u8 address = u132->addr[endp->usb_addr].address;
1209 mutex_lock(&u132->scheduler_lock);
1210 if (u132->going > 1) {
1211 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1212 , u132->going);
1213 mutex_unlock(&u132->scheduler_lock);
1214 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1215 return;
1216 } else if (endp->dequeueing) {
1217 endp->dequeueing = 0;
1218 mutex_unlock(&u132->scheduler_lock);
1219 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1220 return;
1221 } else if (u132->going > 0) {
1222 dev_err(&u132->platform_dev->dev, "device is being removed "
1223 "urb=%p\n", urb);
1224 mutex_unlock(&u132->scheduler_lock);
1225 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1226 return;
1227 } else if (!urb->unlinked) {
1228 int retval;
1229 struct u132_ring *ring = endp->ring;
1230 u8 *u = urb->transfer_buffer;
1231 u8 *b = buf;
1232 int L = len;
1233
1234 while (L-- > 0)
1235 *u++ = *b++;
1236
1237 urb->actual_length = len;
1238 mutex_unlock(&u132->scheduler_lock);
1239 retval = usb_ftdi_elan_edset_empty(u132->platform_dev,
1240 ring->number, endp, urb, address, endp->usb_endp, 0x3,
1241 u132_hcd_initial_empty_sent);
1242 if (retval != 0)
1243 u132_hcd_giveback_urb(u132, endp, urb, retval);
1244 return;
1245 } else {
1246 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
1247 "unlinked=%d\n", urb, urb->unlinked);
1248 mutex_unlock(&u132->scheduler_lock);
1249 u132_hcd_giveback_urb(u132, endp, urb, 0);
1250 return;
1251 }
1252}
1253
1254static void u132_hcd_initial_setup_sent(void *data, struct urb *urb, u8 *buf,
1255 int len, int toggle_bits, int error_count, int condition_code,
1256 int repeat_number, int halted, int skipped, int actual, int non_null)
1257{
1258 struct u132_endp *endp = data;
1259 struct u132 *u132 = endp->u132;
1260 u8 address = u132->addr[endp->usb_addr].address;
1261 mutex_lock(&u132->scheduler_lock);
1262 if (u132->going > 1) {
1263 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1264 , u132->going);
1265 mutex_unlock(&u132->scheduler_lock);
1266 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1267 return;
1268 } else if (endp->dequeueing) {
1269 endp->dequeueing = 0;
1270 mutex_unlock(&u132->scheduler_lock);
1271 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1272 return;
1273 } else if (u132->going > 0) {
1274 dev_err(&u132->platform_dev->dev, "device is being removed "
1275 "urb=%p\n", urb);
1276 mutex_unlock(&u132->scheduler_lock);
1277 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1278 return;
1279 } else if (!urb->unlinked) {
1280 int retval;
1281 struct u132_ring *ring = endp->ring;
1282 mutex_unlock(&u132->scheduler_lock);
1283 retval = usb_ftdi_elan_edset_input(u132->platform_dev,
1284 ring->number, endp, urb, address, endp->usb_endp, 0,
1285 u132_hcd_initial_input_recv);
1286 if (retval != 0)
1287 u132_hcd_giveback_urb(u132, endp, urb, retval);
1288 return;
1289 } else {
1290 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
1291 "unlinked=%d\n", urb, urb->unlinked);
1292 mutex_unlock(&u132->scheduler_lock);
1293 u132_hcd_giveback_urb(u132, endp, urb, 0);
1294 return;
1295 }
1296}
1297
1298/*
1299* this work function is only executed from the work queue
1300*
1301*/
1302static void u132_hcd_ring_work_scheduler(struct work_struct *work)
1303{
1304 struct u132_ring *ring =
1305 container_of(work, struct u132_ring, scheduler.work);
1306 struct u132 *u132 = ring->u132;
1307 mutex_lock(&u132->scheduler_lock);
1308 if (ring->in_use) {
1309 mutex_unlock(&u132->scheduler_lock);
1310 u132_ring_put_kref(u132, ring);
1311 return;
1312 } else if (ring->curr_endp) {
1313 struct u132_endp *last_endp = ring->curr_endp;
1314 struct list_head *scan;
1315 struct list_head *head = &last_endp->endp_ring;
1316 unsigned long wakeup = 0;
1317 list_for_each(scan, head) {
1318 struct u132_endp *endp = list_entry(scan,
1319 struct u132_endp, endp_ring);
1320 if (endp->queue_next == endp->queue_last) {
1321 } else if ((endp->delayed == 0)
1322 || time_after_eq(jiffies, endp->jiffies)) {
1323 ring->curr_endp = endp;
1324 u132_endp_cancel_work(u132, last_endp);
1325 u132_endp_queue_work(u132, last_endp, 0);
1326 mutex_unlock(&u132->scheduler_lock);
1327 u132_ring_put_kref(u132, ring);
1328 return;
1329 } else {
1330 unsigned long delta = endp->jiffies - jiffies;
1331 if (delta > wakeup)
1332 wakeup = delta;
1333 }
1334 }
1335 if (last_endp->queue_next == last_endp->queue_last) {
1336 } else if ((last_endp->delayed == 0) || time_after_eq(jiffies,
1337 last_endp->jiffies)) {
1338 u132_endp_cancel_work(u132, last_endp);
1339 u132_endp_queue_work(u132, last_endp, 0);
1340 mutex_unlock(&u132->scheduler_lock);
1341 u132_ring_put_kref(u132, ring);
1342 return;
1343 } else {
1344 unsigned long delta = last_endp->jiffies - jiffies;
1345 if (delta > wakeup)
1346 wakeup = delta;
1347 }
1348 if (wakeup > 0) {
1349 u132_ring_requeue_work(u132, ring, wakeup);
1350 mutex_unlock(&u132->scheduler_lock);
1351 return;
1352 } else {
1353 mutex_unlock(&u132->scheduler_lock);
1354 u132_ring_put_kref(u132, ring);
1355 return;
1356 }
1357 } else {
1358 mutex_unlock(&u132->scheduler_lock);
1359 u132_ring_put_kref(u132, ring);
1360 return;
1361 }
1362}
1363
1364static void u132_hcd_endp_work_scheduler(struct work_struct *work)
1365{
1366 struct u132_ring *ring;
1367 struct u132_endp *endp =
1368 container_of(work, struct u132_endp, scheduler.work);
1369 struct u132 *u132 = endp->u132;
1370 mutex_lock(&u132->scheduler_lock);
1371 ring = endp->ring;
1372 if (endp->edset_flush) {
1373 endp->edset_flush = 0;
1374 if (endp->dequeueing)
1375 usb_ftdi_elan_edset_flush(u132->platform_dev,
1376 ring->number, endp);
1377 mutex_unlock(&u132->scheduler_lock);
1378 u132_endp_put_kref(u132, endp);
1379 return;
1380 } else if (endp->active) {
1381 mutex_unlock(&u132->scheduler_lock);
1382 u132_endp_put_kref(u132, endp);
1383 return;
1384 } else if (ring->in_use) {
1385 mutex_unlock(&u132->scheduler_lock);
1386 u132_endp_put_kref(u132, endp);
1387 return;
1388 } else if (endp->queue_next == endp->queue_last) {
1389 mutex_unlock(&u132->scheduler_lock);
1390 u132_endp_put_kref(u132, endp);
1391 return;
1392 } else if (endp->pipetype == PIPE_INTERRUPT) {
1393 u8 address = u132->addr[endp->usb_addr].address;
1394 if (ring->in_use) {
1395 mutex_unlock(&u132->scheduler_lock);
1396 u132_endp_put_kref(u132, endp);
1397 return;
1398 } else {
1399 int retval;
1400 struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1401 endp->queue_next];
1402 endp->active = 1;
1403 ring->curr_endp = endp;
1404 ring->in_use = 1;
1405 mutex_unlock(&u132->scheduler_lock);
1406 retval = edset_single(u132, ring, endp, urb, address,
1407 endp->toggle_bits, u132_hcd_interrupt_recv);
1408 if (retval != 0)
1409 u132_hcd_giveback_urb(u132, endp, urb, retval);
1410 return;
1411 }
1412 } else if (endp->pipetype == PIPE_CONTROL) {
1413 u8 address = u132->addr[endp->usb_addr].address;
1414 if (ring->in_use) {
1415 mutex_unlock(&u132->scheduler_lock);
1416 u132_endp_put_kref(u132, endp);
1417 return;
1418 } else if (address == 0) {
1419 int retval;
1420 struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1421 endp->queue_next];
1422 endp->active = 1;
1423 ring->curr_endp = endp;
1424 ring->in_use = 1;
1425 mutex_unlock(&u132->scheduler_lock);
1426 retval = edset_setup(u132, ring, endp, urb, address,
1427 0x2, u132_hcd_initial_setup_sent);
1428 if (retval != 0)
1429 u132_hcd_giveback_urb(u132, endp, urb, retval);
1430 return;
1431 } else if (endp->usb_addr == 0) {
1432 int retval;
1433 struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1434 endp->queue_next];
1435 endp->active = 1;
1436 ring->curr_endp = endp;
1437 ring->in_use = 1;
1438 mutex_unlock(&u132->scheduler_lock);
1439 retval = edset_setup(u132, ring, endp, urb, 0, 0x2,
1440 u132_hcd_enumeration_address_sent);
1441 if (retval != 0)
1442 u132_hcd_giveback_urb(u132, endp, urb, retval);
1443 return;
1444 } else {
1445 int retval;
1446 struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1447 endp->queue_next];
1448 address = u132->addr[endp->usb_addr].address;
1449 endp->active = 1;
1450 ring->curr_endp = endp;
1451 ring->in_use = 1;
1452 mutex_unlock(&u132->scheduler_lock);
1453 retval = edset_setup(u132, ring, endp, urb, address,
1454 0x2, u132_hcd_configure_setup_sent);
1455 if (retval != 0)
1456 u132_hcd_giveback_urb(u132, endp, urb, retval);
1457 return;
1458 }
1459 } else {
1460 if (endp->input) {
1461 u8 address = u132->addr[endp->usb_addr].address;
1462 if (ring->in_use) {
1463 mutex_unlock(&u132->scheduler_lock);
1464 u132_endp_put_kref(u132, endp);
1465 return;
1466 } else {
1467 int retval;
1468 struct urb *urb = endp->urb_list[
1469 ENDP_QUEUE_MASK & endp->queue_next];
1470 endp->active = 1;
1471 ring->curr_endp = endp;
1472 ring->in_use = 1;
1473 mutex_unlock(&u132->scheduler_lock);
1474 retval = edset_input(u132, ring, endp, urb,
1475 address, endp->toggle_bits,
1476 u132_hcd_bulk_input_recv);
1477 if (retval == 0) {
1478 } else
1479 u132_hcd_giveback_urb(u132, endp, urb,
1480 retval);
1481 return;
1482 }
1483 } else { /* output pipe */
1484 u8 address = u132->addr[endp->usb_addr].address;
1485 if (ring->in_use) {
1486 mutex_unlock(&u132->scheduler_lock);
1487 u132_endp_put_kref(u132, endp);
1488 return;
1489 } else {
1490 int retval;
1491 struct urb *urb = endp->urb_list[
1492 ENDP_QUEUE_MASK & endp->queue_next];
1493 endp->active = 1;
1494 ring->curr_endp = endp;
1495 ring->in_use = 1;
1496 mutex_unlock(&u132->scheduler_lock);
1497 retval = edset_output(u132, ring, endp, urb,
1498 address, endp->toggle_bits,
1499 u132_hcd_bulk_output_sent);
1500 if (retval == 0) {
1501 } else
1502 u132_hcd_giveback_urb(u132, endp, urb,
1503 retval);
1504 return;
1505 }
1506 }
1507 }
1508}
1509#ifdef CONFIG_PM
1510
1511static void port_power(struct u132 *u132, int pn, int is_on)
1512{
1513 u132->port[pn].power = is_on;
1514}
1515
1516#endif
1517
1518static void u132_power(struct u132 *u132, int is_on)
1519{
1520 struct usb_hcd *hcd = u132_to_hcd(u132)
1521 ; /* hub is inactive unless the port is powered */
1522 if (is_on) {
1523 if (u132->power)
1524 return;
1525 u132->power = 1;
1526 } else {
1527 u132->power = 0;
1528 hcd->state = HC_STATE_HALT;
1529 }
1530}
1531
1532static int u132_periodic_reinit(struct u132 *u132)
1533{
1534 int retval;
1535 u32 fi = u132->hc_fminterval & 0x03fff;
1536 u32 fit;
1537 u32 fminterval;
1538 retval = u132_read_pcimem(u132, fminterval, &fminterval);
1539 if (retval)
1540 return retval;
1541 fit = fminterval & FIT;
1542 retval = u132_write_pcimem(u132, fminterval,
1543 (fit ^ FIT) | u132->hc_fminterval);
1544 if (retval)
1545 return retval;
1546 retval = u132_write_pcimem(u132, periodicstart,
1547 ((9 * fi) / 10) & 0x3fff);
1548 if (retval)
1549 return retval;
1550 return 0;
1551}
1552
1553static char *hcfs2string(int state)
1554{
1555 switch (state) {
1556 case OHCI_USB_RESET:
1557 return "reset";
1558 case OHCI_USB_RESUME:
1559 return "resume";
1560 case OHCI_USB_OPER:
1561 return "operational";
1562 case OHCI_USB_SUSPEND:
1563 return "suspend";
1564 }
1565 return "?";
1566}
1567
1568static int u132_init(struct u132 *u132)
1569{
1570 int retval;
1571 u32 control;
1572 u132_disable(u132);
1573 u132->next_statechange = jiffies;
1574 retval = u132_write_pcimem(u132, intrdisable, OHCI_INTR_MIE);
1575 if (retval)
1576 return retval;
1577 retval = u132_read_pcimem(u132, control, &control);
1578 if (retval)
1579 return retval;
1580 if (u132->num_ports == 0) {
1581 u32 rh_a = -1;
1582 retval = u132_read_pcimem(u132, roothub.a, &rh_a);
1583 if (retval)
1584 return retval;
1585 u132->num_ports = rh_a & RH_A_NDP;
1586 retval = read_roothub_info(u132);
1587 if (retval)
1588 return retval;
1589 }
1590 if (u132->num_ports > MAX_U132_PORTS)
1591 return -EINVAL;
1592
1593 return 0;
1594}
1595
1596
1597/* Start an OHCI controller, set the BUS operational
1598* resets USB and controller
1599* enable interrupts
1600*/
1601static int u132_run(struct u132 *u132)
1602{
1603 int retval;
1604 u32 control;
1605 u32 status;
1606 u32 fminterval;
1607 u32 periodicstart;
1608 u32 cmdstatus;
1609 u32 roothub_a;
1610 int mask = OHCI_INTR_INIT;
1611 int first = u132->hc_fminterval == 0;
1612 int sleep_time = 0;
1613 int reset_timeout = 30; /* ... allow extra time */
1614 u132_disable(u132);
1615 if (first) {
1616 u32 temp;
1617 retval = u132_read_pcimem(u132, fminterval, &temp);
1618 if (retval)
1619 return retval;
1620 u132->hc_fminterval = temp & 0x3fff;
1621 u132->hc_fminterval |= FSMP(u132->hc_fminterval) << 16;
1622 }
1623 retval = u132_read_pcimem(u132, control, &u132->hc_control);
1624 if (retval)
1625 return retval;
1626 dev_info(&u132->platform_dev->dev, "resetting from state '%s', control "
1627 "= %08X\n", hcfs2string(u132->hc_control & OHCI_CTRL_HCFS),
1628 u132->hc_control);
1629 switch (u132->hc_control & OHCI_CTRL_HCFS) {
1630 case OHCI_USB_OPER:
1631 sleep_time = 0;
1632 break;
1633 case OHCI_USB_SUSPEND:
1634 case OHCI_USB_RESUME:
1635 u132->hc_control &= OHCI_CTRL_RWC;
1636 u132->hc_control |= OHCI_USB_RESUME;
1637 sleep_time = 10;
1638 break;
1639 default:
1640 u132->hc_control &= OHCI_CTRL_RWC;
1641 u132->hc_control |= OHCI_USB_RESET;
1642 sleep_time = 50;
1643 break;
1644 }
1645 retval = u132_write_pcimem(u132, control, u132->hc_control);
1646 if (retval)
1647 return retval;
1648 retval = u132_read_pcimem(u132, control, &control);
1649 if (retval)
1650 return retval;
1651 msleep(sleep_time);
1652 retval = u132_read_pcimem(u132, roothub.a, &roothub_a);
1653 if (retval)
1654 return retval;
1655 if (!(roothub_a & RH_A_NPS)) {
1656 int temp; /* power down each port */
1657 for (temp = 0; temp < u132->num_ports; temp++) {
1658 retval = u132_write_pcimem(u132,
1659 roothub.portstatus[temp], RH_PS_LSDA);
1660 if (retval)
1661 return retval;
1662 }
1663 }
1664 retval = u132_read_pcimem(u132, control, &control);
1665 if (retval)
1666 return retval;
1667retry:
1668 retval = u132_read_pcimem(u132, cmdstatus, &status);
1669 if (retval)
1670 return retval;
1671 retval = u132_write_pcimem(u132, cmdstatus, OHCI_HCR);
1672 if (retval)
1673 return retval;
1674extra: {
1675 retval = u132_read_pcimem(u132, cmdstatus, &status);
1676 if (retval)
1677 return retval;
1678 if (0 != (status & OHCI_HCR)) {
1679 if (--reset_timeout == 0) {
1680 dev_err(&u132->platform_dev->dev, "USB HC reset"
1681 " timed out!\n");
1682 return -ENODEV;
1683 } else {
1684 msleep(5);
1685 goto extra;
1686 }
1687 }
1688 }
1689 if (u132->flags & OHCI_QUIRK_INITRESET) {
1690 retval = u132_write_pcimem(u132, control, u132->hc_control);
1691 if (retval)
1692 return retval;
1693 retval = u132_read_pcimem(u132, control, &control);
1694 if (retval)
1695 return retval;
1696 }
1697 retval = u132_write_pcimem(u132, ed_controlhead, 0x00000000);
1698 if (retval)
1699 return retval;
1700 retval = u132_write_pcimem(u132, ed_bulkhead, 0x11000000);
1701 if (retval)
1702 return retval;
1703 retval = u132_write_pcimem(u132, hcca, 0x00000000);
1704 if (retval)
1705 return retval;
1706 retval = u132_periodic_reinit(u132);
1707 if (retval)
1708 return retval;
1709 retval = u132_read_pcimem(u132, fminterval, &fminterval);
1710 if (retval)
1711 return retval;
1712 retval = u132_read_pcimem(u132, periodicstart, &periodicstart);
1713 if (retval)
1714 return retval;
1715 if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) {
1716 if (!(u132->flags & OHCI_QUIRK_INITRESET)) {
1717 u132->flags |= OHCI_QUIRK_INITRESET;
1718 goto retry;
1719 } else
1720 dev_err(&u132->platform_dev->dev, "init err(%08x %04x)"
1721 "\n", fminterval, periodicstart);
1722 } /* start controller operations */
1723 u132->hc_control &= OHCI_CTRL_RWC;
1724 u132->hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER;
1725 retval = u132_write_pcimem(u132, control, u132->hc_control);
1726 if (retval)
1727 return retval;
1728 retval = u132_write_pcimem(u132, cmdstatus, OHCI_BLF);
1729 if (retval)
1730 return retval;
1731 retval = u132_read_pcimem(u132, cmdstatus, &cmdstatus);
1732 if (retval)
1733 return retval;
1734 retval = u132_read_pcimem(u132, control, &control);
1735 if (retval)
1736 return retval;
1737 u132_to_hcd(u132)->state = HC_STATE_RUNNING;
1738 retval = u132_write_pcimem(u132, roothub.status, RH_HS_DRWE);
1739 if (retval)
1740 return retval;
1741 retval = u132_write_pcimem(u132, intrstatus, mask);
1742 if (retval)
1743 return retval;
1744 retval = u132_write_pcimem(u132, intrdisable,
1745 OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO |
1746 OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH |
1747 OHCI_INTR_SO);
1748 if (retval)
1749 return retval; /* handle root hub init quirks ... */
1750 retval = u132_read_pcimem(u132, roothub.a, &roothub_a);
1751 if (retval)
1752 return retval;
1753 roothub_a &= ~(RH_A_PSM | RH_A_OCPM);
1754 if (u132->flags & OHCI_QUIRK_SUPERIO) {
1755 roothub_a |= RH_A_NOCP;
1756 roothub_a &= ~(RH_A_POTPGT | RH_A_NPS);
1757 retval = u132_write_pcimem(u132, roothub.a, roothub_a);
1758 if (retval)
1759 return retval;
1760 } else if ((u132->flags & OHCI_QUIRK_AMD756) || distrust_firmware) {
1761 roothub_a |= RH_A_NPS;
1762 retval = u132_write_pcimem(u132, roothub.a, roothub_a);
1763 if (retval)
1764 return retval;
1765 }
1766 retval = u132_write_pcimem(u132, roothub.status, RH_HS_LPSC);
1767 if (retval)
1768 return retval;
1769 retval = u132_write_pcimem(u132, roothub.b,
1770 (roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM);
1771 if (retval)
1772 return retval;
1773 retval = u132_read_pcimem(u132, control, &control);
1774 if (retval)
1775 return retval;
1776 mdelay((roothub_a >> 23) & 0x1fe);
1777 u132_to_hcd(u132)->state = HC_STATE_RUNNING;
1778 return 0;
1779}
1780
1781static void u132_hcd_stop(struct usb_hcd *hcd)
1782{
1783 struct u132 *u132 = hcd_to_u132(hcd);
1784 if (u132->going > 1) {
1785 dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p) has b"
1786 "een removed %d\n", u132, hcd, u132->going);
1787 } else if (u132->going > 0) {
1788 dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov"
1789 "ed\n", hcd);
1790 } else {
1791 mutex_lock(&u132->sw_lock);
1792 msleep(100);
1793 u132_power(u132, 0);
1794 mutex_unlock(&u132->sw_lock);
1795 }
1796}
1797
1798static int u132_hcd_start(struct usb_hcd *hcd)
1799{
1800 struct u132 *u132 = hcd_to_u132(hcd);
1801 if (u132->going > 1) {
1802 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1803 , u132->going);
1804 return -ENODEV;
1805 } else if (u132->going > 0) {
1806 dev_err(&u132->platform_dev->dev, "device is being removed\n");
1807 return -ESHUTDOWN;
1808 } else if (hcd->self.controller) {
1809 int retval;
1810 struct platform_device *pdev =
1811 to_platform_device(hcd->self.controller);
1812 u16 vendor = ((struct u132_platform_data *)
1813 (pdev->dev.platform_data))->vendor;
1814 u16 device = ((struct u132_platform_data *)
1815 (pdev->dev.platform_data))->device;
1816 mutex_lock(&u132->sw_lock);
1817 msleep(10);
1818 if (vendor == PCI_VENDOR_ID_AMD && device == 0x740c) {
1819 u132->flags = OHCI_QUIRK_AMD756;
1820 } else if (vendor == PCI_VENDOR_ID_OPTI && device == 0xc861) {
1821 dev_err(&u132->platform_dev->dev, "WARNING: OPTi workar"
1822 "ounds unavailable\n");
1823 } else if (vendor == PCI_VENDOR_ID_COMPAQ && device == 0xa0f8)
1824 u132->flags |= OHCI_QUIRK_ZFMICRO;
1825 retval = u132_run(u132);
1826 if (retval) {
1827 u132_disable(u132);
1828 u132->going = 1;
1829 }
1830 msleep(100);
1831 mutex_unlock(&u132->sw_lock);
1832 return retval;
1833 } else {
1834 dev_err(&u132->platform_dev->dev, "platform_device missing\n");
1835 return -ENODEV;
1836 }
1837}
1838
1839static int u132_hcd_reset(struct usb_hcd *hcd)
1840{
1841 struct u132 *u132 = hcd_to_u132(hcd);
1842 if (u132->going > 1) {
1843 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1844 , u132->going);
1845 return -ENODEV;
1846 } else if (u132->going > 0) {
1847 dev_err(&u132->platform_dev->dev, "device is being removed\n");
1848 return -ESHUTDOWN;
1849 } else {
1850 int retval;
1851 mutex_lock(&u132->sw_lock);
1852 retval = u132_init(u132);
1853 if (retval) {
1854 u132_disable(u132);
1855 u132->going = 1;
1856 }
1857 mutex_unlock(&u132->sw_lock);
1858 return retval;
1859 }
1860}
1861
1862static int create_endpoint_and_queue_int(struct u132 *u132,
1863 struct u132_udev *udev, struct urb *urb,
1864 struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address,
1865 gfp_t mem_flags)
1866{
1867 struct u132_ring *ring;
1868 unsigned long irqs;
1869 int rc;
1870 u8 endp_number;
1871 struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags);
1872
1873 if (!endp)
1874 return -ENOMEM;
1875
1876 spin_lock_init(&endp->queue_lock.slock);
1877 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
1878 rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb);
1879 if (rc) {
1880 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
1881 kfree(endp);
1882 return rc;
1883 }
1884
1885 endp_number = ++u132->num_endpoints;
1886 urb->ep->hcpriv = u132->endp[endp_number - 1] = endp;
1887 INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
1888 INIT_LIST_HEAD(&endp->urb_more);
1889 ring = endp->ring = &u132->ring[0];
1890 if (ring->curr_endp) {
1891 list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
1892 } else {
1893 INIT_LIST_HEAD(&endp->endp_ring);
1894 ring->curr_endp = endp;
1895 }
1896 ring->length += 1;
1897 endp->dequeueing = 0;
1898 endp->edset_flush = 0;
1899 endp->active = 0;
1900 endp->delayed = 0;
1901 endp->endp_number = endp_number;
1902 endp->u132 = u132;
1903 endp->hep = urb->ep;
1904 endp->pipetype = usb_pipetype(urb->pipe);
1905 u132_endp_init_kref(u132, endp);
1906 if (usb_pipein(urb->pipe)) {
1907 endp->toggle_bits = 0x2;
1908 usb_settoggle(udev->usb_device, usb_endp, 0, 0);
1909 endp->input = 1;
1910 endp->output = 0;
1911 udev->endp_number_in[usb_endp] = endp_number;
1912 u132_udev_get_kref(u132, udev);
1913 } else {
1914 endp->toggle_bits = 0x2;
1915 usb_settoggle(udev->usb_device, usb_endp, 1, 0);
1916 endp->input = 0;
1917 endp->output = 1;
1918 udev->endp_number_out[usb_endp] = endp_number;
1919 u132_udev_get_kref(u132, udev);
1920 }
1921 urb->hcpriv = u132;
1922 endp->delayed = 1;
1923 endp->jiffies = jiffies + msecs_to_jiffies(urb->interval);
1924 endp->udev_number = address;
1925 endp->usb_addr = usb_addr;
1926 endp->usb_endp = usb_endp;
1927 endp->queue_size = 1;
1928 endp->queue_last = 0;
1929 endp->queue_next = 0;
1930 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
1931 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
1932 u132_endp_queue_work(u132, endp, msecs_to_jiffies(urb->interval));
1933 return 0;
1934}
1935
1936static int queue_int_on_old_endpoint(struct u132 *u132,
1937 struct u132_udev *udev, struct urb *urb,
1938 struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
1939 u8 usb_endp, u8 address)
1940{
1941 urb->hcpriv = u132;
1942 endp->delayed = 1;
1943 endp->jiffies = jiffies + msecs_to_jiffies(urb->interval);
1944 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
1945 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
1946 } else {
1947 struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq),
1948 GFP_ATOMIC);
1949 if (urbq == NULL) {
1950 endp->queue_size -= 1;
1951 return -ENOMEM;
1952 } else {
1953 list_add_tail(&urbq->urb_more, &endp->urb_more);
1954 urbq->urb = urb;
1955 }
1956 }
1957 return 0;
1958}
1959
1960static int create_endpoint_and_queue_bulk(struct u132 *u132,
1961 struct u132_udev *udev, struct urb *urb,
1962 struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address,
1963 gfp_t mem_flags)
1964{
1965 int ring_number;
1966 struct u132_ring *ring;
1967 unsigned long irqs;
1968 int rc;
1969 u8 endp_number;
1970 struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags);
1971
1972 if (!endp)
1973 return -ENOMEM;
1974
1975 spin_lock_init(&endp->queue_lock.slock);
1976 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
1977 rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb);
1978 if (rc) {
1979 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
1980 kfree(endp);
1981 return rc;
1982 }
1983
1984 endp_number = ++u132->num_endpoints;
1985 urb->ep->hcpriv = u132->endp[endp_number - 1] = endp;
1986 INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
1987 INIT_LIST_HEAD(&endp->urb_more);
1988 endp->dequeueing = 0;
1989 endp->edset_flush = 0;
1990 endp->active = 0;
1991 endp->delayed = 0;
1992 endp->endp_number = endp_number;
1993 endp->u132 = u132;
1994 endp->hep = urb->ep;
1995 endp->pipetype = usb_pipetype(urb->pipe);
1996 u132_endp_init_kref(u132, endp);
1997 if (usb_pipein(urb->pipe)) {
1998 endp->toggle_bits = 0x2;
1999 usb_settoggle(udev->usb_device, usb_endp, 0, 0);
2000 ring_number = 3;
2001 endp->input = 1;
2002 endp->output = 0;
2003 udev->endp_number_in[usb_endp] = endp_number;
2004 u132_udev_get_kref(u132, udev);
2005 } else {
2006 endp->toggle_bits = 0x2;
2007 usb_settoggle(udev->usb_device, usb_endp, 1, 0);
2008 ring_number = 2;
2009 endp->input = 0;
2010 endp->output = 1;
2011 udev->endp_number_out[usb_endp] = endp_number;
2012 u132_udev_get_kref(u132, udev);
2013 }
2014 ring = endp->ring = &u132->ring[ring_number - 1];
2015 if (ring->curr_endp) {
2016 list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
2017 } else {
2018 INIT_LIST_HEAD(&endp->endp_ring);
2019 ring->curr_endp = endp;
2020 }
2021 ring->length += 1;
2022 urb->hcpriv = u132;
2023 endp->udev_number = address;
2024 endp->usb_addr = usb_addr;
2025 endp->usb_endp = usb_endp;
2026 endp->queue_size = 1;
2027 endp->queue_last = 0;
2028 endp->queue_next = 0;
2029 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2030 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2031 u132_endp_queue_work(u132, endp, 0);
2032 return 0;
2033}
2034
2035static int queue_bulk_on_old_endpoint(struct u132 *u132, struct u132_udev *udev,
2036 struct urb *urb,
2037 struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
2038 u8 usb_endp, u8 address)
2039{
2040 urb->hcpriv = u132;
2041 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2042 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2043 } else {
2044 struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq),
2045 GFP_ATOMIC);
2046 if (urbq == NULL) {
2047 endp->queue_size -= 1;
2048 return -ENOMEM;
2049 } else {
2050 list_add_tail(&urbq->urb_more, &endp->urb_more);
2051 urbq->urb = urb;
2052 }
2053 }
2054 return 0;
2055}
2056
2057static int create_endpoint_and_queue_control(struct u132 *u132,
2058 struct urb *urb,
2059 struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp,
2060 gfp_t mem_flags)
2061{
2062 struct u132_ring *ring;
2063 unsigned long irqs;
2064 int rc;
2065 u8 endp_number;
2066 struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags);
2067
2068 if (!endp)
2069 return -ENOMEM;
2070
2071 spin_lock_init(&endp->queue_lock.slock);
2072 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
2073 rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb);
2074 if (rc) {
2075 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2076 kfree(endp);
2077 return rc;
2078 }
2079
2080 endp_number = ++u132->num_endpoints;
2081 urb->ep->hcpriv = u132->endp[endp_number - 1] = endp;
2082 INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
2083 INIT_LIST_HEAD(&endp->urb_more);
2084 ring = endp->ring = &u132->ring[0];
2085 if (ring->curr_endp) {
2086 list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
2087 } else {
2088 INIT_LIST_HEAD(&endp->endp_ring);
2089 ring->curr_endp = endp;
2090 }
2091 ring->length += 1;
2092 endp->dequeueing = 0;
2093 endp->edset_flush = 0;
2094 endp->active = 0;
2095 endp->delayed = 0;
2096 endp->endp_number = endp_number;
2097 endp->u132 = u132;
2098 endp->hep = urb->ep;
2099 u132_endp_init_kref(u132, endp);
2100 u132_endp_get_kref(u132, endp);
2101 if (usb_addr == 0) {
2102 u8 address = u132->addr[usb_addr].address;
2103 struct u132_udev *udev = &u132->udev[address];
2104 endp->udev_number = address;
2105 endp->usb_addr = usb_addr;
2106 endp->usb_endp = usb_endp;
2107 endp->input = 1;
2108 endp->output = 1;
2109 endp->pipetype = usb_pipetype(urb->pipe);
2110 u132_udev_init_kref(u132, udev);
2111 u132_udev_get_kref(u132, udev);
2112 udev->endp_number_in[usb_endp] = endp_number;
2113 udev->endp_number_out[usb_endp] = endp_number;
2114 urb->hcpriv = u132;
2115 endp->queue_size = 1;
2116 endp->queue_last = 0;
2117 endp->queue_next = 0;
2118 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2119 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2120 u132_endp_queue_work(u132, endp, 0);
2121 return 0;
2122 } else { /*(usb_addr > 0) */
2123 u8 address = u132->addr[usb_addr].address;
2124 struct u132_udev *udev = &u132->udev[address];
2125 endp->udev_number = address;
2126 endp->usb_addr = usb_addr;
2127 endp->usb_endp = usb_endp;
2128 endp->input = 1;
2129 endp->output = 1;
2130 endp->pipetype = usb_pipetype(urb->pipe);
2131 u132_udev_get_kref(u132, udev);
2132 udev->enumeration = 2;
2133 udev->endp_number_in[usb_endp] = endp_number;
2134 udev->endp_number_out[usb_endp] = endp_number;
2135 urb->hcpriv = u132;
2136 endp->queue_size = 1;
2137 endp->queue_last = 0;
2138 endp->queue_next = 0;
2139 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2140 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2141 u132_endp_queue_work(u132, endp, 0);
2142 return 0;
2143 }
2144}
2145
2146static int queue_control_on_old_endpoint(struct u132 *u132,
2147 struct urb *urb,
2148 struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
2149 u8 usb_endp)
2150{
2151 if (usb_addr == 0) {
2152 if (usb_pipein(urb->pipe)) {
2153 urb->hcpriv = u132;
2154 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2155 endp->urb_list[ENDP_QUEUE_MASK &
2156 endp->queue_last++] = urb;
2157 } else {
2158 struct u132_urbq *urbq =
2159 kmalloc(sizeof(struct u132_urbq),
2160 GFP_ATOMIC);
2161 if (urbq == NULL) {
2162 endp->queue_size -= 1;
2163 return -ENOMEM;
2164 } else {
2165 list_add_tail(&urbq->urb_more,
2166 &endp->urb_more);
2167 urbq->urb = urb;
2168 }
2169 }
2170 return 0;
2171 } else { /* usb_pipeout(urb->pipe) */
2172 struct u132_addr *addr = &u132->addr[usb_dev->devnum];
2173 int I = MAX_U132_UDEVS;
2174 int i = 0;
2175 while (--I > 0) {
2176 struct u132_udev *udev = &u132->udev[++i];
2177 if (udev->usb_device) {
2178 continue;
2179 } else {
2180 udev->enumeration = 1;
2181 u132->addr[0].address = i;
2182 endp->udev_number = i;
2183 udev->udev_number = i;
2184 udev->usb_addr = usb_dev->devnum;
2185 u132_udev_init_kref(u132, udev);
2186 udev->endp_number_in[usb_endp] =
2187 endp->endp_number;
2188 u132_udev_get_kref(u132, udev);
2189 udev->endp_number_out[usb_endp] =
2190 endp->endp_number;
2191 udev->usb_device = usb_dev;
2192 ((u8 *) (urb->setup_packet))[2] =
2193 addr->address = i;
2194 u132_udev_get_kref(u132, udev);
2195 break;
2196 }
2197 }
2198 if (I == 0) {
2199 dev_err(&u132->platform_dev->dev, "run out of d"
2200 "evice space\n");
2201 return -EINVAL;
2202 }
2203 urb->hcpriv = u132;
2204 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2205 endp->urb_list[ENDP_QUEUE_MASK &
2206 endp->queue_last++] = urb;
2207 } else {
2208 struct u132_urbq *urbq =
2209 kmalloc(sizeof(struct u132_urbq),
2210 GFP_ATOMIC);
2211 if (urbq == NULL) {
2212 endp->queue_size -= 1;
2213 return -ENOMEM;
2214 } else {
2215 list_add_tail(&urbq->urb_more,
2216 &endp->urb_more);
2217 urbq->urb = urb;
2218 }
2219 }
2220 return 0;
2221 }
2222 } else { /*(usb_addr > 0) */
2223 u8 address = u132->addr[usb_addr].address;
2224 struct u132_udev *udev = &u132->udev[address];
2225 urb->hcpriv = u132;
2226 if (udev->enumeration != 2)
2227 udev->enumeration = 2;
2228 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2229 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
2230 urb;
2231 } else {
2232 struct u132_urbq *urbq =
2233 kmalloc(sizeof(struct u132_urbq), GFP_ATOMIC);
2234 if (urbq == NULL) {
2235 endp->queue_size -= 1;
2236 return -ENOMEM;
2237 } else {
2238 list_add_tail(&urbq->urb_more, &endp->urb_more);
2239 urbq->urb = urb;
2240 }
2241 }
2242 return 0;
2243 }
2244}
2245
2246static int u132_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
2247 gfp_t mem_flags)
2248{
2249 struct u132 *u132 = hcd_to_u132(hcd);
2250 if (irqs_disabled()) {
2251 if (__GFP_WAIT & mem_flags) {
2252 printk(KERN_ERR "invalid context for function that migh"
2253 "t sleep\n");
2254 return -EINVAL;
2255 }
2256 }
2257 if (u132->going > 1) {
2258 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2259 , u132->going);
2260 return -ENODEV;
2261 } else if (u132->going > 0) {
2262 dev_err(&u132->platform_dev->dev, "device is being removed "
2263 "urb=%p\n", urb);
2264 return -ESHUTDOWN;
2265 } else {
2266 u8 usb_addr = usb_pipedevice(urb->pipe);
2267 u8 usb_endp = usb_pipeendpoint(urb->pipe);
2268 struct usb_device *usb_dev = urb->dev;
2269 if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) {
2270 u8 address = u132->addr[usb_addr].address;
2271 struct u132_udev *udev = &u132->udev[address];
2272 struct u132_endp *endp = urb->ep->hcpriv;
2273 urb->actual_length = 0;
2274 if (endp) {
2275 unsigned long irqs;
2276 int retval;
2277 spin_lock_irqsave(&endp->queue_lock.slock,
2278 irqs);
2279 retval = usb_hcd_link_urb_to_ep(hcd, urb);
2280 if (retval == 0) {
2281 retval = queue_int_on_old_endpoint(
2282 u132, udev, urb,
2283 usb_dev, endp,
2284 usb_addr, usb_endp,
2285 address);
2286 if (retval)
2287 usb_hcd_unlink_urb_from_ep(
2288 hcd, urb);
2289 }
2290 spin_unlock_irqrestore(&endp->queue_lock.slock,
2291 irqs);
2292 if (retval) {
2293 return retval;
2294 } else {
2295 u132_endp_queue_work(u132, endp,
2296 msecs_to_jiffies(urb->interval))
2297 ;
2298 return 0;
2299 }
2300 } else if (u132->num_endpoints == MAX_U132_ENDPS) {
2301 return -EINVAL;
2302 } else { /*(endp == NULL) */
2303 return create_endpoint_and_queue_int(u132, udev,
2304 urb, usb_dev, usb_addr,
2305 usb_endp, address, mem_flags);
2306 }
2307 } else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
2308 dev_err(&u132->platform_dev->dev, "the hardware does no"
2309 "t support PIPE_ISOCHRONOUS\n");
2310 return -EINVAL;
2311 } else if (usb_pipetype(urb->pipe) == PIPE_BULK) {
2312 u8 address = u132->addr[usb_addr].address;
2313 struct u132_udev *udev = &u132->udev[address];
2314 struct u132_endp *endp = urb->ep->hcpriv;
2315 urb->actual_length = 0;
2316 if (endp) {
2317 unsigned long irqs;
2318 int retval;
2319 spin_lock_irqsave(&endp->queue_lock.slock,
2320 irqs);
2321 retval = usb_hcd_link_urb_to_ep(hcd, urb);
2322 if (retval == 0) {
2323 retval = queue_bulk_on_old_endpoint(
2324 u132, udev, urb,
2325 usb_dev, endp,
2326 usb_addr, usb_endp,
2327 address);
2328 if (retval)
2329 usb_hcd_unlink_urb_from_ep(
2330 hcd, urb);
2331 }
2332 spin_unlock_irqrestore(&endp->queue_lock.slock,
2333 irqs);
2334 if (retval) {
2335 return retval;
2336 } else {
2337 u132_endp_queue_work(u132, endp, 0);
2338 return 0;
2339 }
2340 } else if (u132->num_endpoints == MAX_U132_ENDPS) {
2341 return -EINVAL;
2342 } else
2343 return create_endpoint_and_queue_bulk(u132,
2344 udev, urb, usb_dev, usb_addr,
2345 usb_endp, address, mem_flags);
2346 } else {
2347 struct u132_endp *endp = urb->ep->hcpriv;
2348 u16 urb_size = 8;
2349 u8 *b = urb->setup_packet;
2350 int i = 0;
2351 char data[30 * 3 + 4];
2352 char *d = data;
2353 int m = (sizeof(data) - 1) / 3;
2354 int l = 0;
2355 data[0] = 0;
2356 while (urb_size-- > 0) {
2357 if (i > m) {
2358 } else if (i++ < m) {
2359 int w = sprintf(d, " %02X", *b++);
2360 d += w;
2361 l += w;
2362 } else
2363 d += sprintf(d, " ..");
2364 }
2365 if (endp) {
2366 unsigned long irqs;
2367 int retval;
2368 spin_lock_irqsave(&endp->queue_lock.slock,
2369 irqs);
2370 retval = usb_hcd_link_urb_to_ep(hcd, urb);
2371 if (retval == 0) {
2372 retval = queue_control_on_old_endpoint(
2373 u132, urb, usb_dev,
2374 endp, usb_addr,
2375 usb_endp);
2376 if (retval)
2377 usb_hcd_unlink_urb_from_ep(
2378 hcd, urb);
2379 }
2380 spin_unlock_irqrestore(&endp->queue_lock.slock,
2381 irqs);
2382 if (retval) {
2383 return retval;
2384 } else {
2385 u132_endp_queue_work(u132, endp, 0);
2386 return 0;
2387 }
2388 } else if (u132->num_endpoints == MAX_U132_ENDPS) {
2389 return -EINVAL;
2390 } else
2391 return create_endpoint_and_queue_control(u132,
2392 urb, usb_dev, usb_addr, usb_endp,
2393 mem_flags);
2394 }
2395 }
2396}
2397
2398static int dequeue_from_overflow_chain(struct u132 *u132,
2399 struct u132_endp *endp, struct urb *urb)
2400{
2401 struct list_head *scan;
2402 struct list_head *head = &endp->urb_more;
2403 list_for_each(scan, head) {
2404 struct u132_urbq *urbq = list_entry(scan, struct u132_urbq,
2405 urb_more);
2406 if (urbq->urb == urb) {
2407 struct usb_hcd *hcd = u132_to_hcd(u132);
2408 list_del(scan);
2409 endp->queue_size -= 1;
2410 urb->error_count = 0;
2411 usb_hcd_giveback_urb(hcd, urb, 0);
2412 return 0;
2413 } else
2414 continue;
2415 }
2416 dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]=%p ring"
2417 "[%d] %c%c usb_endp=%d usb_addr=%d size=%d next=%04X last=%04X"
2418 "\n", urb, endp->endp_number, endp, endp->ring->number,
2419 endp->input ? 'I' : ' ', endp->output ? 'O' : ' ',
2420 endp->usb_endp, endp->usb_addr, endp->queue_size,
2421 endp->queue_next, endp->queue_last);
2422 return -EINVAL;
2423}
2424
2425static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp,
2426 struct urb *urb, int status)
2427{
2428 unsigned long irqs;
2429 int rc;
2430
2431 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
2432 rc = usb_hcd_check_unlink_urb(u132_to_hcd(u132), urb, status);
2433 if (rc) {
2434 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2435 return rc;
2436 }
2437 if (endp->queue_size == 0) {
2438 dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]"
2439 "=%p ring[%d] %c%c usb_endp=%d usb_addr=%d\n", urb,
2440 endp->endp_number, endp, endp->ring->number,
2441 endp->input ? 'I' : ' ', endp->output ? 'O' : ' ',
2442 endp->usb_endp, endp->usb_addr);
2443 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2444 return -EINVAL;
2445 }
2446 if (urb == endp->urb_list[ENDP_QUEUE_MASK & endp->queue_next]) {
2447 if (endp->active) {
2448 endp->dequeueing = 1;
2449 endp->edset_flush = 1;
2450 u132_endp_queue_work(u132, endp, 0);
2451 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2452 return 0;
2453 } else {
2454 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2455 u132_hcd_abandon_urb(u132, endp, urb, status);
2456 return 0;
2457 }
2458 } else {
2459 u16 queue_list = 0;
2460 u16 queue_size = endp->queue_size;
2461 u16 queue_scan = endp->queue_next;
2462 struct urb **urb_slot = NULL;
2463 while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) {
2464 if (urb == endp->urb_list[ENDP_QUEUE_MASK &
2465 ++queue_scan]) {
2466 urb_slot = &endp->urb_list[ENDP_QUEUE_MASK &
2467 queue_scan];
2468 break;
2469 } else
2470 continue;
2471 }
2472 while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) {
2473 *urb_slot = endp->urb_list[ENDP_QUEUE_MASK &
2474 ++queue_scan];
2475 urb_slot = &endp->urb_list[ENDP_QUEUE_MASK &
2476 queue_scan];
2477 }
2478 if (urb_slot) {
2479 struct usb_hcd *hcd = u132_to_hcd(u132);
2480
2481 usb_hcd_unlink_urb_from_ep(hcd, urb);
2482 endp->queue_size -= 1;
2483 if (list_empty(&endp->urb_more)) {
2484 spin_unlock_irqrestore(&endp->queue_lock.slock,
2485 irqs);
2486 } else {
2487 struct list_head *next = endp->urb_more.next;
2488 struct u132_urbq *urbq = list_entry(next,
2489 struct u132_urbq, urb_more);
2490 list_del(next);
2491 *urb_slot = urbq->urb;
2492 spin_unlock_irqrestore(&endp->queue_lock.slock,
2493 irqs);
2494 kfree(urbq);
2495 } urb->error_count = 0;
2496 usb_hcd_giveback_urb(hcd, urb, status);
2497 return 0;
2498 } else if (list_empty(&endp->urb_more)) {
2499 dev_err(&u132->platform_dev->dev, "urb=%p not found in "
2500 "endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr"
2501 "=%d size=%d next=%04X last=%04X\n", urb,
2502 endp->endp_number, endp, endp->ring->number,
2503 endp->input ? 'I' : ' ',
2504 endp->output ? 'O' : ' ', endp->usb_endp,
2505 endp->usb_addr, endp->queue_size,
2506 endp->queue_next, endp->queue_last);
2507 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2508 return -EINVAL;
2509 } else {
2510 int retval;
2511
2512 usb_hcd_unlink_urb_from_ep(u132_to_hcd(u132), urb);
2513 retval = dequeue_from_overflow_chain(u132, endp,
2514 urb);
2515 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2516 return retval;
2517 }
2518 }
2519}
2520
2521static int u132_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
2522{
2523 struct u132 *u132 = hcd_to_u132(hcd);
2524 if (u132->going > 2) {
2525 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2526 , u132->going);
2527 return -ENODEV;
2528 } else {
2529 u8 usb_addr = usb_pipedevice(urb->pipe);
2530 u8 usb_endp = usb_pipeendpoint(urb->pipe);
2531 u8 address = u132->addr[usb_addr].address;
2532 struct u132_udev *udev = &u132->udev[address];
2533 if (usb_pipein(urb->pipe)) {
2534 u8 endp_number = udev->endp_number_in[usb_endp];
2535 struct u132_endp *endp = u132->endp[endp_number - 1];
2536 return u132_endp_urb_dequeue(u132, endp, urb, status);
2537 } else {
2538 u8 endp_number = udev->endp_number_out[usb_endp];
2539 struct u132_endp *endp = u132->endp[endp_number - 1];
2540 return u132_endp_urb_dequeue(u132, endp, urb, status);
2541 }
2542 }
2543}
2544
2545static void u132_endpoint_disable(struct usb_hcd *hcd,
2546 struct usb_host_endpoint *hep)
2547{
2548 struct u132 *u132 = hcd_to_u132(hcd);
2549 if (u132->going > 2) {
2550 dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p hep=%p"
2551 ") has been removed %d\n", u132, hcd, hep,
2552 u132->going);
2553 } else {
2554 struct u132_endp *endp = hep->hcpriv;
2555 if (endp)
2556 u132_endp_put_kref(u132, endp);
2557 }
2558}
2559
2560static int u132_get_frame(struct usb_hcd *hcd)
2561{
2562 struct u132 *u132 = hcd_to_u132(hcd);
2563 if (u132->going > 1) {
2564 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2565 , u132->going);
2566 return -ENODEV;
2567 } else if (u132->going > 0) {
2568 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2569 return -ESHUTDOWN;
2570 } else {
2571 int frame = 0;
2572 dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n");
2573 msleep(100);
2574 return frame;
2575 }
2576}
2577
2578static int u132_roothub_descriptor(struct u132 *u132,
2579 struct usb_hub_descriptor *desc)
2580{
2581 int retval;
2582 u16 temp;
2583 u32 rh_a = -1;
2584 u32 rh_b = -1;
2585 retval = u132_read_pcimem(u132, roothub.a, &rh_a);
2586 if (retval)
2587 return retval;
2588 desc->bDescriptorType = 0x29;
2589 desc->bPwrOn2PwrGood = (rh_a & RH_A_POTPGT) >> 24;
2590 desc->bHubContrCurrent = 0;
2591 desc->bNbrPorts = u132->num_ports;
2592 temp = 1 + (u132->num_ports / 8);
2593 desc->bDescLength = 7 + 2 * temp;
2594 temp = 0;
2595 if (rh_a & RH_A_NPS)
2596 temp |= 0x0002;
2597 if (rh_a & RH_A_PSM)
2598 temp |= 0x0001;
2599 if (rh_a & RH_A_NOCP)
2600 temp |= 0x0010;
2601 else if (rh_a & RH_A_OCPM)
2602 temp |= 0x0008;
2603 desc->wHubCharacteristics = cpu_to_le16(temp);
2604 retval = u132_read_pcimem(u132, roothub.b, &rh_b);
2605 if (retval)
2606 return retval;
2607 memset(desc->u.hs.DeviceRemovable, 0xff,
2608 sizeof(desc->u.hs.DeviceRemovable));
2609 desc->u.hs.DeviceRemovable[0] = rh_b & RH_B_DR;
2610 if (u132->num_ports > 7) {
2611 desc->u.hs.DeviceRemovable[1] = (rh_b & RH_B_DR) >> 8;
2612 desc->u.hs.DeviceRemovable[2] = 0xff;
2613 } else
2614 desc->u.hs.DeviceRemovable[1] = 0xff;
2615 return 0;
2616}
2617
2618static int u132_roothub_status(struct u132 *u132, __le32 *desc)
2619{
2620 u32 rh_status = -1;
2621 int ret_status = u132_read_pcimem(u132, roothub.status, &rh_status);
2622 *desc = cpu_to_le32(rh_status);
2623 return ret_status;
2624}
2625
2626static int u132_roothub_portstatus(struct u132 *u132, __le32 *desc, u16 wIndex)
2627{
2628 if (wIndex == 0 || wIndex > u132->num_ports) {
2629 return -EINVAL;
2630 } else {
2631 int port = wIndex - 1;
2632 u32 rh_portstatus = -1;
2633 int ret_portstatus = u132_read_pcimem(u132,
2634 roothub.portstatus[port], &rh_portstatus);
2635 *desc = cpu_to_le32(rh_portstatus);
2636 if (*(u16 *) (desc + 2)) {
2637 dev_info(&u132->platform_dev->dev, "Port %d Status Chan"
2638 "ge = %08X\n", port, *desc);
2639 }
2640 return ret_portstatus;
2641 }
2642}
2643
2644
2645/* this timer value might be vendor-specific ... */
2646#define PORT_RESET_HW_MSEC 10
2647#define PORT_RESET_MSEC 10
2648/* wrap-aware logic morphed from <linux/jiffies.h> */
2649#define tick_before(t1, t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0)
2650static int u132_roothub_portreset(struct u132 *u132, int port_index)
2651{
2652 int retval;
2653 u32 fmnumber;
2654 u16 now;
2655 u16 reset_done;
2656 retval = u132_read_pcimem(u132, fmnumber, &fmnumber);
2657 if (retval)
2658 return retval;
2659 now = fmnumber;
2660 reset_done = now + PORT_RESET_MSEC;
2661 do {
2662 u32 portstat;
2663 do {
2664 retval = u132_read_pcimem(u132,
2665 roothub.portstatus[port_index], &portstat);
2666 if (retval)
2667 return retval;
2668 if (RH_PS_PRS & portstat)
2669 continue;
2670 else
2671 break;
2672 } while (tick_before(now, reset_done));
2673 if (RH_PS_PRS & portstat)
2674 return -ENODEV;
2675 if (RH_PS_CCS & portstat) {
2676 if (RH_PS_PRSC & portstat) {
2677 retval = u132_write_pcimem(u132,
2678 roothub.portstatus[port_index],
2679 RH_PS_PRSC);
2680 if (retval)
2681 return retval;
2682 }
2683 } else
2684 break; /* start the next reset,
2685 sleep till it's probably done */
2686 retval = u132_write_pcimem(u132, roothub.portstatus[port_index],
2687 RH_PS_PRS);
2688 if (retval)
2689 return retval;
2690 msleep(PORT_RESET_HW_MSEC);
2691 retval = u132_read_pcimem(u132, fmnumber, &fmnumber);
2692 if (retval)
2693 return retval;
2694 now = fmnumber;
2695 } while (tick_before(now, reset_done));
2696 return 0;
2697}
2698
2699static int u132_roothub_setportfeature(struct u132 *u132, u16 wValue,
2700 u16 wIndex)
2701{
2702 if (wIndex == 0 || wIndex > u132->num_ports) {
2703 return -EINVAL;
2704 } else {
2705 int retval;
2706 int port_index = wIndex - 1;
2707 struct u132_port *port = &u132->port[port_index];
2708 port->Status &= ~(1 << wValue);
2709 switch (wValue) {
2710 case USB_PORT_FEAT_SUSPEND:
2711 retval = u132_write_pcimem(u132,
2712 roothub.portstatus[port_index], RH_PS_PSS);
2713 if (retval)
2714 return retval;
2715 return 0;
2716 case USB_PORT_FEAT_POWER:
2717 retval = u132_write_pcimem(u132,
2718 roothub.portstatus[port_index], RH_PS_PPS);
2719 if (retval)
2720 return retval;
2721 return 0;
2722 case USB_PORT_FEAT_RESET:
2723 retval = u132_roothub_portreset(u132, port_index);
2724 if (retval)
2725 return retval;
2726 return 0;
2727 default:
2728 return -EPIPE;
2729 }
2730 }
2731}
2732
2733static int u132_roothub_clearportfeature(struct u132 *u132, u16 wValue,
2734 u16 wIndex)
2735{
2736 if (wIndex == 0 || wIndex > u132->num_ports) {
2737 return -EINVAL;
2738 } else {
2739 int port_index = wIndex - 1;
2740 u32 temp;
2741 int retval;
2742 struct u132_port *port = &u132->port[port_index];
2743 port->Status &= ~(1 << wValue);
2744 switch (wValue) {
2745 case USB_PORT_FEAT_ENABLE:
2746 temp = RH_PS_CCS;
2747 break;
2748 case USB_PORT_FEAT_C_ENABLE:
2749 temp = RH_PS_PESC;
2750 break;
2751 case USB_PORT_FEAT_SUSPEND:
2752 temp = RH_PS_POCI;
2753 if ((u132->hc_control & OHCI_CTRL_HCFS)
2754 != OHCI_USB_OPER) {
2755 dev_err(&u132->platform_dev->dev, "TODO resume_"
2756 "root_hub\n");
2757 }
2758 break;
2759 case USB_PORT_FEAT_C_SUSPEND:
2760 temp = RH_PS_PSSC;
2761 break;
2762 case USB_PORT_FEAT_POWER:
2763 temp = RH_PS_LSDA;
2764 break;
2765 case USB_PORT_FEAT_C_CONNECTION:
2766 temp = RH_PS_CSC;
2767 break;
2768 case USB_PORT_FEAT_C_OVER_CURRENT:
2769 temp = RH_PS_OCIC;
2770 break;
2771 case USB_PORT_FEAT_C_RESET:
2772 temp = RH_PS_PRSC;
2773 break;
2774 default:
2775 return -EPIPE;
2776 }
2777 retval = u132_write_pcimem(u132, roothub.portstatus[port_index],
2778 temp);
2779 if (retval)
2780 return retval;
2781 return 0;
2782 }
2783}
2784
2785
2786/* the virtual root hub timer IRQ checks for hub status*/
2787static int u132_hub_status_data(struct usb_hcd *hcd, char *buf)
2788{
2789 struct u132 *u132 = hcd_to_u132(hcd);
2790 if (u132->going > 1) {
2791 dev_err(&u132->platform_dev->dev, "device hcd=%p has been remov"
2792 "ed %d\n", hcd, u132->going);
2793 return -ENODEV;
2794 } else if (u132->going > 0) {
2795 dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov"
2796 "ed\n", hcd);
2797 return -ESHUTDOWN;
2798 } else {
2799 int i, changed = 0, length = 1;
2800 if (u132->flags & OHCI_QUIRK_AMD756) {
2801 if ((u132->hc_roothub_a & RH_A_NDP) > MAX_ROOT_PORTS) {
2802 dev_err(&u132->platform_dev->dev, "bogus NDP, r"
2803 "ereads as NDP=%d\n",
2804 u132->hc_roothub_a & RH_A_NDP);
2805 goto done;
2806 }
2807 }
2808 if (u132->hc_roothub_status & (RH_HS_LPSC | RH_HS_OCIC))
2809 buf[0] = changed = 1;
2810 else
2811 buf[0] = 0;
2812 if (u132->num_ports > 7) {
2813 buf[1] = 0;
2814 length++;
2815 }
2816 for (i = 0; i < u132->num_ports; i++) {
2817 if (u132->hc_roothub_portstatus[i] & (RH_PS_CSC |
2818 RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC |
2819 RH_PS_PRSC)) {
2820 changed = 1;
2821 if (i < 7)
2822 buf[0] |= 1 << (i + 1);
2823 else
2824 buf[1] |= 1 << (i - 7);
2825 continue;
2826 }
2827 if (!(u132->hc_roothub_portstatus[i] & RH_PS_CCS))
2828 continue;
2829
2830 if ((u132->hc_roothub_portstatus[i] & RH_PS_PSS))
2831 continue;
2832 }
2833done:
2834 return changed ? length : 0;
2835 }
2836}
2837
2838static int u132_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
2839 u16 wIndex, char *buf, u16 wLength)
2840{
2841 struct u132 *u132 = hcd_to_u132(hcd);
2842 if (u132->going > 1) {
2843 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2844 , u132->going);
2845 return -ENODEV;
2846 } else if (u132->going > 0) {
2847 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2848 return -ESHUTDOWN;
2849 } else {
2850 int retval = 0;
2851 mutex_lock(&u132->sw_lock);
2852 switch (typeReq) {
2853 case ClearHubFeature:
2854 switch (wValue) {
2855 case C_HUB_OVER_CURRENT:
2856 case C_HUB_LOCAL_POWER:
2857 break;
2858 default:
2859 goto stall;
2860 }
2861 break;
2862 case SetHubFeature:
2863 switch (wValue) {
2864 case C_HUB_OVER_CURRENT:
2865 case C_HUB_LOCAL_POWER:
2866 break;
2867 default:
2868 goto stall;
2869 }
2870 break;
2871 case ClearPortFeature:{
2872 retval = u132_roothub_clearportfeature(u132,
2873 wValue, wIndex);
2874 if (retval)
2875 goto error;
2876 break;
2877 }
2878 case GetHubDescriptor:{
2879 retval = u132_roothub_descriptor(u132,
2880 (struct usb_hub_descriptor *)buf);
2881 if (retval)
2882 goto error;
2883 break;
2884 }
2885 case GetHubStatus:{
2886 retval = u132_roothub_status(u132,
2887 (__le32 *) buf);
2888 if (retval)
2889 goto error;
2890 break;
2891 }
2892 case GetPortStatus:{
2893 retval = u132_roothub_portstatus(u132,
2894 (__le32 *) buf, wIndex);
2895 if (retval)
2896 goto error;
2897 break;
2898 }
2899 case SetPortFeature:{
2900 retval = u132_roothub_setportfeature(u132,
2901 wValue, wIndex);
2902 if (retval)
2903 goto error;
2904 break;
2905 }
2906 default:
2907 goto stall;
2908 error:
2909 u132_disable(u132);
2910 u132->going = 1;
2911 break;
2912 stall:
2913 retval = -EPIPE;
2914 break;
2915 }
2916 mutex_unlock(&u132->sw_lock);
2917 return retval;
2918 }
2919}
2920
2921static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num)
2922{
2923 struct u132 *u132 = hcd_to_u132(hcd);
2924 if (u132->going > 1) {
2925 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2926 , u132->going);
2927 return -ENODEV;
2928 } else if (u132->going > 0) {
2929 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2930 return -ESHUTDOWN;
2931 } else
2932 return 0;
2933}
2934
2935
2936#ifdef CONFIG_PM
2937static int u132_bus_suspend(struct usb_hcd *hcd)
2938{
2939 struct u132 *u132 = hcd_to_u132(hcd);
2940 if (u132->going > 1) {
2941 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2942 , u132->going);
2943 return -ENODEV;
2944 } else if (u132->going > 0) {
2945 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2946 return -ESHUTDOWN;
2947 } else
2948 return 0;
2949}
2950
2951static int u132_bus_resume(struct usb_hcd *hcd)
2952{
2953 struct u132 *u132 = hcd_to_u132(hcd);
2954 if (u132->going > 1) {
2955 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2956 , u132->going);
2957 return -ENODEV;
2958 } else if (u132->going > 0) {
2959 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2960 return -ESHUTDOWN;
2961 } else
2962 return 0;
2963}
2964
2965#else
2966#define u132_bus_suspend NULL
2967#define u132_bus_resume NULL
2968#endif
2969static struct hc_driver u132_hc_driver = {
2970 .description = hcd_name,
2971 .hcd_priv_size = sizeof(struct u132),
2972 .irq = NULL,
2973 .flags = HCD_USB11 | HCD_MEMORY,
2974 .reset = u132_hcd_reset,
2975 .start = u132_hcd_start,
2976 .stop = u132_hcd_stop,
2977 .urb_enqueue = u132_urb_enqueue,
2978 .urb_dequeue = u132_urb_dequeue,
2979 .endpoint_disable = u132_endpoint_disable,
2980 .get_frame_number = u132_get_frame,
2981 .hub_status_data = u132_hub_status_data,
2982 .hub_control = u132_hub_control,
2983 .bus_suspend = u132_bus_suspend,
2984 .bus_resume = u132_bus_resume,
2985 .start_port_reset = u132_start_port_reset,
2986};
2987
2988/*
2989* This function may be called by the USB core whilst the "usb_all_devices_rwsem"
2990* is held for writing, thus this module must not call usb_remove_hcd()
2991* synchronously - but instead should immediately stop activity to the
2992* device and asynchronously call usb_remove_hcd()
2993*/
2994static int __devexit u132_remove(struct platform_device *pdev)
2995{
2996 struct usb_hcd *hcd = platform_get_drvdata(pdev);
2997 if (hcd) {
2998 struct u132 *u132 = hcd_to_u132(hcd);
2999 if (u132->going++ > 1) {
3000 dev_err(&u132->platform_dev->dev, "already being remove"
3001 "d\n");
3002 return -ENODEV;
3003 } else {
3004 int rings = MAX_U132_RINGS;
3005 int endps = MAX_U132_ENDPS;
3006 dev_err(&u132->platform_dev->dev, "removing device u132"
3007 ".%d\n", u132->sequence_num);
3008 msleep(100);
3009 mutex_lock(&u132->sw_lock);
3010 u132_monitor_cancel_work(u132);
3011 while (rings-- > 0) {
3012 struct u132_ring *ring = &u132->ring[rings];
3013 u132_ring_cancel_work(u132, ring);
3014 } while (endps-- > 0) {
3015 struct u132_endp *endp = u132->endp[endps];
3016 if (endp)
3017 u132_endp_cancel_work(u132, endp);
3018 }
3019 u132->going += 1;
3020 printk(KERN_INFO "removing device u132.%d\n",
3021 u132->sequence_num);
3022 mutex_unlock(&u132->sw_lock);
3023 usb_remove_hcd(hcd);
3024 u132_u132_put_kref(u132);
3025 return 0;
3026 }
3027 } else
3028 return 0;
3029}
3030
3031static void u132_initialise(struct u132 *u132, struct platform_device *pdev)
3032{
3033 int rings = MAX_U132_RINGS;
3034 int ports = MAX_U132_PORTS;
3035 int addrs = MAX_U132_ADDRS;
3036 int udevs = MAX_U132_UDEVS;
3037 int endps = MAX_U132_ENDPS;
3038 u132->board = pdev->dev.platform_data;
3039 u132->platform_dev = pdev;
3040 u132->power = 0;
3041 u132->reset = 0;
3042 mutex_init(&u132->sw_lock);
3043 mutex_init(&u132->scheduler_lock);
3044 while (rings-- > 0) {
3045 struct u132_ring *ring = &u132->ring[rings];
3046 ring->u132 = u132;
3047 ring->number = rings + 1;
3048 ring->length = 0;
3049 ring->curr_endp = NULL;
3050 INIT_DELAYED_WORK(&ring->scheduler,
3051 u132_hcd_ring_work_scheduler);
3052 }
3053 mutex_lock(&u132->sw_lock);
3054 INIT_DELAYED_WORK(&u132->monitor, u132_hcd_monitor_work);
3055 while (ports-- > 0) {
3056 struct u132_port *port = &u132->port[ports];
3057 port->u132 = u132;
3058 port->reset = 0;
3059 port->enable = 0;
3060 port->power = 0;
3061 port->Status = 0;
3062 }
3063 while (addrs-- > 0) {
3064 struct u132_addr *addr = &u132->addr[addrs];
3065 addr->address = 0;
3066 }
3067 while (udevs-- > 0) {
3068 struct u132_udev *udev = &u132->udev[udevs];
3069 int i = ARRAY_SIZE(udev->endp_number_in);
3070 int o = ARRAY_SIZE(udev->endp_number_out);
3071 udev->usb_device = NULL;
3072 udev->udev_number = 0;
3073 udev->usb_addr = 0;
3074 udev->portnumber = 0;
3075 while (i-- > 0)
3076 udev->endp_number_in[i] = 0;
3077
3078 while (o-- > 0)
3079 udev->endp_number_out[o] = 0;
3080
3081 }
3082 while (endps-- > 0)
3083 u132->endp[endps] = NULL;
3084
3085 mutex_unlock(&u132->sw_lock);
3086}
3087
3088static int __devinit u132_probe(struct platform_device *pdev)
3089{
3090 struct usb_hcd *hcd;
3091 int retval;
3092 u32 control;
3093 u32 rh_a = -1;
3094 u32 num_ports;
3095
3096 msleep(100);
3097 if (u132_exiting > 0)
3098 return -ENODEV;
3099
3100 retval = ftdi_write_pcimem(pdev, intrdisable, OHCI_INTR_MIE);
3101 if (retval)
3102 return retval;
3103 retval = ftdi_read_pcimem(pdev, control, &control);
3104 if (retval)
3105 return retval;
3106 retval = ftdi_read_pcimem(pdev, roothub.a, &rh_a);
3107 if (retval)
3108 return retval;
3109 num_ports = rh_a & RH_A_NDP; /* refuse to confuse usbcore */
3110 if (pdev->dev.dma_mask)
3111 return -EINVAL;
3112
3113 hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, dev_name(&pdev->dev));
3114 if (!hcd) {
3115 printk(KERN_ERR "failed to create the usb hcd struct for U132\n"
3116 );
3117 ftdi_elan_gone_away(pdev);
3118 return -ENOMEM;
3119 } else {
3120 struct u132 *u132 = hcd_to_u132(hcd);
3121 retval = 0;
3122 hcd->rsrc_start = 0;
3123 mutex_lock(&u132_module_lock);
3124 list_add_tail(&u132->u132_list, &u132_static_list);
3125 u132->sequence_num = ++u132_instances;
3126 mutex_unlock(&u132_module_lock);
3127 u132_u132_init_kref(u132);
3128 u132_initialise(u132, pdev);
3129 hcd->product_desc = "ELAN U132 Host Controller";
3130 retval = usb_add_hcd(hcd, 0, 0);
3131 if (retval != 0) {
3132 dev_err(&u132->platform_dev->dev, "init error %d\n",
3133 retval);
3134 u132_u132_put_kref(u132);
3135 return retval;
3136 } else {
3137 u132_monitor_queue_work(u132, 100);
3138 return 0;
3139 }
3140 }
3141}
3142
3143
3144#ifdef CONFIG_PM
3145/* for this device there's no useful distinction between the controller
3146* and its root hub, except that the root hub only gets direct PM calls
3147* when CONFIG_USB_SUSPEND is enabled.
3148*/
3149static int u132_suspend(struct platform_device *pdev, pm_message_t state)
3150{
3151 struct usb_hcd *hcd = platform_get_drvdata(pdev);
3152 struct u132 *u132 = hcd_to_u132(hcd);
3153 if (u132->going > 1) {
3154 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
3155 , u132->going);
3156 return -ENODEV;
3157 } else if (u132->going > 0) {
3158 dev_err(&u132->platform_dev->dev, "device is being removed\n");
3159 return -ESHUTDOWN;
3160 } else {
3161 int retval = 0, ports;
3162
3163 switch (state.event) {
3164 case PM_EVENT_FREEZE:
3165 retval = u132_bus_suspend(hcd);
3166 break;
3167 case PM_EVENT_SUSPEND:
3168 case PM_EVENT_HIBERNATE:
3169 ports = MAX_U132_PORTS;
3170 while (ports-- > 0) {
3171 port_power(u132, ports, 0);
3172 }
3173 break;
3174 }
3175 return retval;
3176 }
3177}
3178
3179static int u132_resume(struct platform_device *pdev)
3180{
3181 struct usb_hcd *hcd = platform_get_drvdata(pdev);
3182 struct u132 *u132 = hcd_to_u132(hcd);
3183 if (u132->going > 1) {
3184 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
3185 , u132->going);
3186 return -ENODEV;
3187 } else if (u132->going > 0) {
3188 dev_err(&u132->platform_dev->dev, "device is being removed\n");
3189 return -ESHUTDOWN;
3190 } else {
3191 int retval = 0;
3192 if (!u132->port[0].power) {
3193 int ports = MAX_U132_PORTS;
3194 while (ports-- > 0) {
3195 port_power(u132, ports, 1);
3196 }
3197 retval = 0;
3198 } else {
3199 retval = u132_bus_resume(hcd);
3200 }
3201 return retval;
3202 }
3203}
3204
3205#else
3206#define u132_suspend NULL
3207#define u132_resume NULL
3208#endif
3209/*
3210* this driver is loaded explicitly by ftdi_u132
3211*
3212* the platform_driver struct is static because it is per type of module
3213*/
3214static struct platform_driver u132_platform_driver = {
3215 .probe = u132_probe,
3216 .remove = __devexit_p(u132_remove),
3217 .suspend = u132_suspend,
3218 .resume = u132_resume,
3219 .driver = {
3220 .name = (char *)hcd_name,
3221 .owner = THIS_MODULE,
3222 },
3223};
3224static int __init u132_hcd_init(void)
3225{
3226 int retval;
3227 INIT_LIST_HEAD(&u132_static_list);
3228 u132_instances = 0;
3229 u132_exiting = 0;
3230 mutex_init(&u132_module_lock);
3231 if (usb_disabled())
3232 return -ENODEV;
3233 printk(KERN_INFO "driver %s\n", hcd_name);
3234 workqueue = create_singlethread_workqueue("u132");
3235 retval = platform_driver_register(&u132_platform_driver);
3236 return retval;
3237}
3238
3239
3240module_init(u132_hcd_init);
3241static void __exit u132_hcd_exit(void)
3242{
3243 struct u132 *u132;
3244 struct u132 *temp;
3245 mutex_lock(&u132_module_lock);
3246 u132_exiting += 1;
3247 mutex_unlock(&u132_module_lock);
3248 list_for_each_entry_safe(u132, temp, &u132_static_list, u132_list) {
3249 platform_device_unregister(u132->platform_dev);
3250 }
3251 platform_driver_unregister(&u132_platform_driver);
3252 printk(KERN_INFO "u132-hcd driver deregistered\n");
3253 wait_event(u132_hcd_wait, u132_instances == 0);
3254 flush_workqueue(workqueue);
3255 destroy_workqueue(workqueue);
3256}
3257
3258
3259module_exit(u132_hcd_exit);
3260MODULE_LICENSE("GPL");
3261MODULE_ALIAS("platform:u132_hcd");
1/*
2* Host Controller Driver for the Elan Digital Systems U132 adapter
3*
4* Copyright(C) 2006 Elan Digital Systems Limited
5* http://www.elandigitalsystems.com
6*
7* Author and Maintainer - Tony Olech - Elan Digital Systems
8* tony.olech@elandigitalsystems.com
9*
10* This program is free software;you can redistribute it and/or
11* modify it under the terms of the GNU General Public License as
12* published by the Free Software Foundation, version 2.
13*
14*
15* This driver was written by Tony Olech(tony.olech@elandigitalsystems.com)
16* based on various USB host drivers in the 2.6.15 linux kernel
17* with constant reference to the 3rd Edition of Linux Device Drivers
18* published by O'Reilly
19*
20* The U132 adapter is a USB to CardBus adapter specifically designed
21* for PC cards that contain an OHCI host controller. Typical PC cards
22* are the Orange Mobile 3G Option GlobeTrotter Fusion card.
23*
24* The U132 adapter will *NOT *work with PC cards that do not contain
25* an OHCI controller. A simple way to test whether a PC card has an
26* OHCI controller as an interface is to insert the PC card directly
27* into a laptop(or desktop) with a CardBus slot and if "lspci" shows
28* a new USB controller and "lsusb -v" shows a new OHCI Host Controller
29* then there is a good chance that the U132 adapter will support the
30* PC card.(you also need the specific client driver for the PC card)
31*
32* Please inform the Author and Maintainer about any PC cards that
33* contain OHCI Host Controller and work when directly connected to
34* an embedded CardBus slot but do not work when they are connected
35* via an ELAN U132 adapter.
36*
37*/
38#include <linux/kernel.h>
39#include <linux/module.h>
40#include <linux/moduleparam.h>
41#include <linux/delay.h>
42#include <linux/ioport.h>
43#include <linux/pci_ids.h>
44#include <linux/sched.h>
45#include <linux/slab.h>
46#include <linux/errno.h>
47#include <linux/init.h>
48#include <linux/timer.h>
49#include <linux/list.h>
50#include <linux/interrupt.h>
51#include <linux/usb.h>
52#include <linux/usb/hcd.h>
53#include <linux/workqueue.h>
54#include <linux/platform_device.h>
55#include <linux/mutex.h>
56#include <asm/io.h>
57#include <asm/irq.h>
58#include <asm/byteorder.h>
59
60 /* FIXME ohci.h is ONLY for internal use by the OHCI driver.
61 * If you're going to try stuff like this, you need to split
62 * out shareable stuff (register declarations?) into its own
63 * file, maybe name <linux/usb/ohci.h>
64 */
65
66#include "ohci.h"
67#define OHCI_CONTROL_INIT OHCI_CTRL_CBSR
68#define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \
69 OHCI_INTR_WDH)
70MODULE_AUTHOR("Tony Olech - Elan Digital Systems Limited");
71MODULE_DESCRIPTION("U132 USB Host Controller Driver");
72MODULE_LICENSE("GPL");
73#define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444)
74INT_MODULE_PARM(testing, 0);
75/* Some boards misreport power switching/overcurrent*/
76static bool distrust_firmware = 1;
77module_param(distrust_firmware, bool, 0);
78MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren"
79 "t setup");
80static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait);
81/*
82* u132_module_lock exists to protect access to global variables
83*
84*/
85static struct mutex u132_module_lock;
86static int u132_exiting;
87static int u132_instances;
88static struct list_head u132_static_list;
89/*
90* end of the global variables protected by u132_module_lock
91*/
92static struct workqueue_struct *workqueue;
93#define MAX_U132_PORTS 7
94#define MAX_U132_ADDRS 128
95#define MAX_U132_UDEVS 4
96#define MAX_U132_ENDPS 100
97#define MAX_U132_RINGS 4
98static const char *cc_to_text[16] = {
99 "No Error ",
100 "CRC Error ",
101 "Bit Stuff ",
102 "Data Togg ",
103 "Stall ",
104 "DevNotResp ",
105 "PIDCheck ",
106 "UnExpPID ",
107 "DataOver ",
108 "DataUnder ",
109 "(for hw) ",
110 "(for hw) ",
111 "BufferOver ",
112 "BuffUnder ",
113 "(for HCD) ",
114 "(for HCD) "
115};
116struct u132_port {
117 struct u132 *u132;
118 int reset;
119 int enable;
120 int power;
121 int Status;
122};
123struct u132_addr {
124 u8 address;
125};
126struct u132_udev {
127 struct kref kref;
128 struct usb_device *usb_device;
129 u8 enumeration;
130 u8 udev_number;
131 u8 usb_addr;
132 u8 portnumber;
133 u8 endp_number_in[16];
134 u8 endp_number_out[16];
135};
136#define ENDP_QUEUE_SHIFT 3
137#define ENDP_QUEUE_SIZE (1<<ENDP_QUEUE_SHIFT)
138#define ENDP_QUEUE_MASK (ENDP_QUEUE_SIZE-1)
139struct u132_urbq {
140 struct list_head urb_more;
141 struct urb *urb;
142};
143struct u132_spin {
144 spinlock_t slock;
145};
146struct u132_endp {
147 struct kref kref;
148 u8 udev_number;
149 u8 endp_number;
150 u8 usb_addr;
151 u8 usb_endp;
152 struct u132 *u132;
153 struct list_head endp_ring;
154 struct u132_ring *ring;
155 unsigned toggle_bits:2;
156 unsigned active:1;
157 unsigned delayed:1;
158 unsigned input:1;
159 unsigned output:1;
160 unsigned pipetype:2;
161 unsigned dequeueing:1;
162 unsigned edset_flush:1;
163 unsigned spare_bits:14;
164 unsigned long jiffies;
165 struct usb_host_endpoint *hep;
166 struct u132_spin queue_lock;
167 u16 queue_size;
168 u16 queue_last;
169 u16 queue_next;
170 struct urb *urb_list[ENDP_QUEUE_SIZE];
171 struct list_head urb_more;
172 struct delayed_work scheduler;
173};
174struct u132_ring {
175 unsigned in_use:1;
176 unsigned length:7;
177 u8 number;
178 struct u132 *u132;
179 struct u132_endp *curr_endp;
180 struct delayed_work scheduler;
181};
182struct u132 {
183 struct kref kref;
184 struct list_head u132_list;
185 struct mutex sw_lock;
186 struct mutex scheduler_lock;
187 struct u132_platform_data *board;
188 struct platform_device *platform_dev;
189 struct u132_ring ring[MAX_U132_RINGS];
190 int sequence_num;
191 int going;
192 int power;
193 int reset;
194 int num_ports;
195 u32 hc_control;
196 u32 hc_fminterval;
197 u32 hc_roothub_status;
198 u32 hc_roothub_a;
199 u32 hc_roothub_portstatus[MAX_ROOT_PORTS];
200 int flags;
201 unsigned long next_statechange;
202 struct delayed_work monitor;
203 int num_endpoints;
204 struct u132_addr addr[MAX_U132_ADDRS];
205 struct u132_udev udev[MAX_U132_UDEVS];
206 struct u132_port port[MAX_U132_PORTS];
207 struct u132_endp *endp[MAX_U132_ENDPS];
208};
209
210/*
211* these cannot be inlines because we need the structure offset!!
212* Does anyone have a better way?????
213*/
214#define ftdi_read_pcimem(pdev, member, data) usb_ftdi_elan_read_pcimem(pdev, \
215 offsetof(struct ohci_regs, member), 0, data);
216#define ftdi_write_pcimem(pdev, member, data) usb_ftdi_elan_write_pcimem(pdev, \
217 offsetof(struct ohci_regs, member), 0, data);
218#define u132_read_pcimem(u132, member, data) \
219 usb_ftdi_elan_read_pcimem(u132->platform_dev, offsetof(struct \
220 ohci_regs, member), 0, data);
221#define u132_write_pcimem(u132, member, data) \
222 usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \
223 ohci_regs, member), 0, data);
224static inline struct u132 *udev_to_u132(struct u132_udev *udev)
225{
226 u8 udev_number = udev->udev_number;
227 return container_of(udev, struct u132, udev[udev_number]);
228}
229
230static inline struct u132 *hcd_to_u132(struct usb_hcd *hcd)
231{
232 return (struct u132 *)(hcd->hcd_priv);
233}
234
235static inline struct usb_hcd *u132_to_hcd(struct u132 *u132)
236{
237 return container_of((void *)u132, struct usb_hcd, hcd_priv);
238}
239
240static inline void u132_disable(struct u132 *u132)
241{
242 u132_to_hcd(u132)->state = HC_STATE_HALT;
243}
244
245
246#define kref_to_u132(d) container_of(d, struct u132, kref)
247#define kref_to_u132_endp(d) container_of(d, struct u132_endp, kref)
248#define kref_to_u132_udev(d) container_of(d, struct u132_udev, kref)
249#include "../misc/usb_u132.h"
250static const char hcd_name[] = "u132_hcd";
251#define PORT_C_MASK ((USB_PORT_STAT_C_CONNECTION | USB_PORT_STAT_C_ENABLE | \
252 USB_PORT_STAT_C_SUSPEND | USB_PORT_STAT_C_OVERCURRENT | \
253 USB_PORT_STAT_C_RESET) << 16)
254static void u132_hcd_delete(struct kref *kref)
255{
256 struct u132 *u132 = kref_to_u132(kref);
257 struct platform_device *pdev = u132->platform_dev;
258 struct usb_hcd *hcd = u132_to_hcd(u132);
259 u132->going += 1;
260 mutex_lock(&u132_module_lock);
261 list_del_init(&u132->u132_list);
262 u132_instances -= 1;
263 mutex_unlock(&u132_module_lock);
264 dev_warn(&u132->platform_dev->dev, "FREEING the hcd=%p and thus the u13"
265 "2=%p going=%d pdev=%p\n", hcd, u132, u132->going, pdev);
266 usb_put_hcd(hcd);
267}
268
269static inline void u132_u132_put_kref(struct u132 *u132)
270{
271 kref_put(&u132->kref, u132_hcd_delete);
272}
273
274static inline void u132_u132_init_kref(struct u132 *u132)
275{
276 kref_init(&u132->kref);
277}
278
279static void u132_udev_delete(struct kref *kref)
280{
281 struct u132_udev *udev = kref_to_u132_udev(kref);
282 udev->udev_number = 0;
283 udev->usb_device = NULL;
284 udev->usb_addr = 0;
285 udev->enumeration = 0;
286}
287
288static inline void u132_udev_put_kref(struct u132 *u132, struct u132_udev *udev)
289{
290 kref_put(&udev->kref, u132_udev_delete);
291}
292
293static inline void u132_udev_get_kref(struct u132 *u132, struct u132_udev *udev)
294{
295 kref_get(&udev->kref);
296}
297
298static inline void u132_udev_init_kref(struct u132 *u132,
299 struct u132_udev *udev)
300{
301 kref_init(&udev->kref);
302}
303
304static inline void u132_ring_put_kref(struct u132 *u132, struct u132_ring *ring)
305{
306 kref_put(&u132->kref, u132_hcd_delete);
307}
308
309static void u132_ring_requeue_work(struct u132 *u132, struct u132_ring *ring,
310 unsigned int delta)
311{
312 if (delta > 0) {
313 if (queue_delayed_work(workqueue, &ring->scheduler, delta))
314 return;
315 } else if (queue_delayed_work(workqueue, &ring->scheduler, 0))
316 return;
317 kref_put(&u132->kref, u132_hcd_delete);
318}
319
320static void u132_ring_queue_work(struct u132 *u132, struct u132_ring *ring,
321 unsigned int delta)
322{
323 kref_get(&u132->kref);
324 u132_ring_requeue_work(u132, ring, delta);
325}
326
327static void u132_ring_cancel_work(struct u132 *u132, struct u132_ring *ring)
328{
329 if (cancel_delayed_work(&ring->scheduler))
330 kref_put(&u132->kref, u132_hcd_delete);
331}
332
333static void u132_endp_delete(struct kref *kref)
334{
335 struct u132_endp *endp = kref_to_u132_endp(kref);
336 struct u132 *u132 = endp->u132;
337 u8 usb_addr = endp->usb_addr;
338 u8 usb_endp = endp->usb_endp;
339 u8 address = u132->addr[usb_addr].address;
340 struct u132_udev *udev = &u132->udev[address];
341 u8 endp_number = endp->endp_number;
342 struct usb_host_endpoint *hep = endp->hep;
343 struct u132_ring *ring = endp->ring;
344 struct list_head *head = &endp->endp_ring;
345 ring->length -= 1;
346 if (endp == ring->curr_endp) {
347 if (list_empty(head)) {
348 ring->curr_endp = NULL;
349 list_del(head);
350 } else {
351 struct u132_endp *next_endp = list_entry(head->next,
352 struct u132_endp, endp_ring);
353 ring->curr_endp = next_endp;
354 list_del(head);
355 }
356 } else
357 list_del(head);
358 if (endp->input) {
359 udev->endp_number_in[usb_endp] = 0;
360 u132_udev_put_kref(u132, udev);
361 }
362 if (endp->output) {
363 udev->endp_number_out[usb_endp] = 0;
364 u132_udev_put_kref(u132, udev);
365 }
366 u132->endp[endp_number - 1] = NULL;
367 hep->hcpriv = NULL;
368 kfree(endp);
369 u132_u132_put_kref(u132);
370}
371
372static inline void u132_endp_put_kref(struct u132 *u132, struct u132_endp *endp)
373{
374 kref_put(&endp->kref, u132_endp_delete);
375}
376
377static inline void u132_endp_get_kref(struct u132 *u132, struct u132_endp *endp)
378{
379 kref_get(&endp->kref);
380}
381
382static inline void u132_endp_init_kref(struct u132 *u132,
383 struct u132_endp *endp)
384{
385 kref_init(&endp->kref);
386 kref_get(&u132->kref);
387}
388
389static void u132_endp_queue_work(struct u132 *u132, struct u132_endp *endp,
390 unsigned int delta)
391{
392 if (queue_delayed_work(workqueue, &endp->scheduler, delta))
393 kref_get(&endp->kref);
394}
395
396static void u132_endp_cancel_work(struct u132 *u132, struct u132_endp *endp)
397{
398 if (cancel_delayed_work(&endp->scheduler))
399 kref_put(&endp->kref, u132_endp_delete);
400}
401
402static inline void u132_monitor_put_kref(struct u132 *u132)
403{
404 kref_put(&u132->kref, u132_hcd_delete);
405}
406
407static void u132_monitor_queue_work(struct u132 *u132, unsigned int delta)
408{
409 if (queue_delayed_work(workqueue, &u132->monitor, delta))
410 kref_get(&u132->kref);
411}
412
413static void u132_monitor_requeue_work(struct u132 *u132, unsigned int delta)
414{
415 if (!queue_delayed_work(workqueue, &u132->monitor, delta))
416 kref_put(&u132->kref, u132_hcd_delete);
417}
418
419static void u132_monitor_cancel_work(struct u132 *u132)
420{
421 if (cancel_delayed_work(&u132->monitor))
422 kref_put(&u132->kref, u132_hcd_delete);
423}
424
425static int read_roothub_info(struct u132 *u132)
426{
427 u32 revision;
428 int retval;
429 retval = u132_read_pcimem(u132, revision, &revision);
430 if (retval) {
431 dev_err(&u132->platform_dev->dev, "error %d accessing device co"
432 "ntrol\n", retval);
433 return retval;
434 } else if ((revision & 0xFF) == 0x10) {
435 } else if ((revision & 0xFF) == 0x11) {
436 } else {
437 dev_err(&u132->platform_dev->dev, "device revision is not valid"
438 " %08X\n", revision);
439 return -ENODEV;
440 }
441 retval = u132_read_pcimem(u132, control, &u132->hc_control);
442 if (retval) {
443 dev_err(&u132->platform_dev->dev, "error %d accessing device co"
444 "ntrol\n", retval);
445 return retval;
446 }
447 retval = u132_read_pcimem(u132, roothub.status,
448 &u132->hc_roothub_status);
449 if (retval) {
450 dev_err(&u132->platform_dev->dev, "error %d accessing device re"
451 "g roothub.status\n", retval);
452 return retval;
453 }
454 retval = u132_read_pcimem(u132, roothub.a, &u132->hc_roothub_a);
455 if (retval) {
456 dev_err(&u132->platform_dev->dev, "error %d accessing device re"
457 "g roothub.a\n", retval);
458 return retval;
459 }
460 {
461 int I = u132->num_ports;
462 int i = 0;
463 while (I-- > 0) {
464 retval = u132_read_pcimem(u132, roothub.portstatus[i],
465 &u132->hc_roothub_portstatus[i]);
466 if (retval) {
467 dev_err(&u132->platform_dev->dev, "error %d acc"
468 "essing device roothub.portstatus[%d]\n"
469 , retval, i);
470 return retval;
471 } else
472 i += 1;
473 }
474 }
475 return 0;
476}
477
478static void u132_hcd_monitor_work(struct work_struct *work)
479{
480 struct u132 *u132 = container_of(work, struct u132, monitor.work);
481 if (u132->going > 1) {
482 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
483 , u132->going);
484 u132_monitor_put_kref(u132);
485 return;
486 } else if (u132->going > 0) {
487 dev_err(&u132->platform_dev->dev, "device is being removed\n");
488 u132_monitor_put_kref(u132);
489 return;
490 } else {
491 int retval;
492 mutex_lock(&u132->sw_lock);
493 retval = read_roothub_info(u132);
494 if (retval) {
495 struct usb_hcd *hcd = u132_to_hcd(u132);
496 u132_disable(u132);
497 u132->going = 1;
498 mutex_unlock(&u132->sw_lock);
499 usb_hc_died(hcd);
500 ftdi_elan_gone_away(u132->platform_dev);
501 u132_monitor_put_kref(u132);
502 return;
503 } else {
504 u132_monitor_requeue_work(u132, 500);
505 mutex_unlock(&u132->sw_lock);
506 return;
507 }
508 }
509}
510
511static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp,
512 struct urb *urb, int status)
513{
514 struct u132_ring *ring;
515 unsigned long irqs;
516 struct usb_hcd *hcd = u132_to_hcd(u132);
517 urb->error_count = 0;
518 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
519 usb_hcd_unlink_urb_from_ep(hcd, urb);
520 endp->queue_next += 1;
521 if (ENDP_QUEUE_SIZE > --endp->queue_size) {
522 endp->active = 0;
523 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
524 } else {
525 struct list_head *next = endp->urb_more.next;
526 struct u132_urbq *urbq = list_entry(next, struct u132_urbq,
527 urb_more);
528 list_del(next);
529 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
530 urbq->urb;
531 endp->active = 0;
532 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
533 kfree(urbq);
534 }
535 mutex_lock(&u132->scheduler_lock);
536 ring = endp->ring;
537 ring->in_use = 0;
538 u132_ring_cancel_work(u132, ring);
539 u132_ring_queue_work(u132, ring, 0);
540 mutex_unlock(&u132->scheduler_lock);
541 u132_endp_put_kref(u132, endp);
542 usb_hcd_giveback_urb(hcd, urb, status);
543}
544
545static void u132_hcd_forget_urb(struct u132 *u132, struct u132_endp *endp,
546 struct urb *urb, int status)
547{
548 u132_endp_put_kref(u132, endp);
549}
550
551static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp,
552 struct urb *urb, int status)
553{
554 unsigned long irqs;
555 struct usb_hcd *hcd = u132_to_hcd(u132);
556 urb->error_count = 0;
557 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
558 usb_hcd_unlink_urb_from_ep(hcd, urb);
559 endp->queue_next += 1;
560 if (ENDP_QUEUE_SIZE > --endp->queue_size) {
561 endp->active = 0;
562 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
563 } else {
564 struct list_head *next = endp->urb_more.next;
565 struct u132_urbq *urbq = list_entry(next, struct u132_urbq,
566 urb_more);
567 list_del(next);
568 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
569 urbq->urb;
570 endp->active = 0;
571 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
572 kfree(urbq);
573 }
574 usb_hcd_giveback_urb(hcd, urb, status);
575}
576
577static inline int edset_input(struct u132 *u132, struct u132_ring *ring,
578 struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
579 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
580 int toggle_bits, int error_count, int condition_code, int repeat_number,
581 int halted, int skipped, int actual, int non_null))
582{
583 return usb_ftdi_elan_edset_input(u132->platform_dev, ring->number, endp,
584 urb, address, endp->usb_endp, toggle_bits, callback);
585}
586
587static inline int edset_setup(struct u132 *u132, struct u132_ring *ring,
588 struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
589 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
590 int toggle_bits, int error_count, int condition_code, int repeat_number,
591 int halted, int skipped, int actual, int non_null))
592{
593 return usb_ftdi_elan_edset_setup(u132->platform_dev, ring->number, endp,
594 urb, address, endp->usb_endp, toggle_bits, callback);
595}
596
597static inline int edset_single(struct u132 *u132, struct u132_ring *ring,
598 struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
599 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
600 int toggle_bits, int error_count, int condition_code, int repeat_number,
601 int halted, int skipped, int actual, int non_null))
602{
603 return usb_ftdi_elan_edset_single(u132->platform_dev, ring->number,
604 endp, urb, address, endp->usb_endp, toggle_bits, callback);
605}
606
607static inline int edset_output(struct u132 *u132, struct u132_ring *ring,
608 struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
609 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
610 int toggle_bits, int error_count, int condition_code, int repeat_number,
611 int halted, int skipped, int actual, int non_null))
612{
613 return usb_ftdi_elan_edset_output(u132->platform_dev, ring->number,
614 endp, urb, address, endp->usb_endp, toggle_bits, callback);
615}
616
617
618/*
619* must not LOCK sw_lock
620*
621*/
622static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf,
623 int len, int toggle_bits, int error_count, int condition_code,
624 int repeat_number, int halted, int skipped, int actual, int non_null)
625{
626 struct u132_endp *endp = data;
627 struct u132 *u132 = endp->u132;
628 u8 address = u132->addr[endp->usb_addr].address;
629 struct u132_udev *udev = &u132->udev[address];
630 mutex_lock(&u132->scheduler_lock);
631 if (u132->going > 1) {
632 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
633 , u132->going);
634 mutex_unlock(&u132->scheduler_lock);
635 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
636 return;
637 } else if (endp->dequeueing) {
638 endp->dequeueing = 0;
639 mutex_unlock(&u132->scheduler_lock);
640 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
641 return;
642 } else if (u132->going > 0) {
643 dev_err(&u132->platform_dev->dev, "device is being removed "
644 "urb=%p\n", urb);
645 mutex_unlock(&u132->scheduler_lock);
646 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
647 return;
648 } else if (!urb->unlinked) {
649 struct u132_ring *ring = endp->ring;
650 u8 *u = urb->transfer_buffer + urb->actual_length;
651 u8 *b = buf;
652 int L = len;
653
654 while (L-- > 0)
655 *u++ = *b++;
656
657 urb->actual_length += len;
658 if ((condition_code == TD_CC_NOERROR) &&
659 (urb->transfer_buffer_length > urb->actual_length)) {
660 endp->toggle_bits = toggle_bits;
661 usb_settoggle(udev->usb_device, endp->usb_endp, 0,
662 1 & toggle_bits);
663 if (urb->actual_length > 0) {
664 int retval;
665 mutex_unlock(&u132->scheduler_lock);
666 retval = edset_single(u132, ring, endp, urb,
667 address, endp->toggle_bits,
668 u132_hcd_interrupt_recv);
669 if (retval != 0)
670 u132_hcd_giveback_urb(u132, endp, urb,
671 retval);
672 } else {
673 ring->in_use = 0;
674 endp->active = 0;
675 endp->jiffies = jiffies +
676 msecs_to_jiffies(urb->interval);
677 u132_ring_cancel_work(u132, ring);
678 u132_ring_queue_work(u132, ring, 0);
679 mutex_unlock(&u132->scheduler_lock);
680 u132_endp_put_kref(u132, endp);
681 }
682 return;
683 } else if ((condition_code == TD_DATAUNDERRUN) &&
684 ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) {
685 endp->toggle_bits = toggle_bits;
686 usb_settoggle(udev->usb_device, endp->usb_endp, 0,
687 1 & toggle_bits);
688 mutex_unlock(&u132->scheduler_lock);
689 u132_hcd_giveback_urb(u132, endp, urb, 0);
690 return;
691 } else {
692 if (condition_code == TD_CC_NOERROR) {
693 endp->toggle_bits = toggle_bits;
694 usb_settoggle(udev->usb_device, endp->usb_endp,
695 0, 1 & toggle_bits);
696 } else if (condition_code == TD_CC_STALL) {
697 endp->toggle_bits = 0x2;
698 usb_settoggle(udev->usb_device, endp->usb_endp,
699 0, 0);
700 } else {
701 endp->toggle_bits = 0x2;
702 usb_settoggle(udev->usb_device, endp->usb_endp,
703 0, 0);
704 dev_err(&u132->platform_dev->dev, "urb=%p givin"
705 "g back INTERRUPT %s\n", urb,
706 cc_to_text[condition_code]);
707 }
708 mutex_unlock(&u132->scheduler_lock);
709 u132_hcd_giveback_urb(u132, endp, urb,
710 cc_to_error[condition_code]);
711 return;
712 }
713 } else {
714 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
715 "unlinked=%d\n", urb, urb->unlinked);
716 mutex_unlock(&u132->scheduler_lock);
717 u132_hcd_giveback_urb(u132, endp, urb, 0);
718 return;
719 }
720}
721
722static void u132_hcd_bulk_output_sent(void *data, struct urb *urb, u8 *buf,
723 int len, int toggle_bits, int error_count, int condition_code,
724 int repeat_number, int halted, int skipped, int actual, int non_null)
725{
726 struct u132_endp *endp = data;
727 struct u132 *u132 = endp->u132;
728 u8 address = u132->addr[endp->usb_addr].address;
729 mutex_lock(&u132->scheduler_lock);
730 if (u132->going > 1) {
731 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
732 , u132->going);
733 mutex_unlock(&u132->scheduler_lock);
734 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
735 return;
736 } else if (endp->dequeueing) {
737 endp->dequeueing = 0;
738 mutex_unlock(&u132->scheduler_lock);
739 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
740 return;
741 } else if (u132->going > 0) {
742 dev_err(&u132->platform_dev->dev, "device is being removed "
743 "urb=%p\n", urb);
744 mutex_unlock(&u132->scheduler_lock);
745 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
746 return;
747 } else if (!urb->unlinked) {
748 struct u132_ring *ring = endp->ring;
749 urb->actual_length += len;
750 endp->toggle_bits = toggle_bits;
751 if (urb->transfer_buffer_length > urb->actual_length) {
752 int retval;
753 mutex_unlock(&u132->scheduler_lock);
754 retval = edset_output(u132, ring, endp, urb, address,
755 endp->toggle_bits, u132_hcd_bulk_output_sent);
756 if (retval != 0)
757 u132_hcd_giveback_urb(u132, endp, urb, retval);
758 return;
759 } else {
760 mutex_unlock(&u132->scheduler_lock);
761 u132_hcd_giveback_urb(u132, endp, urb, 0);
762 return;
763 }
764 } else {
765 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
766 "unlinked=%d\n", urb, urb->unlinked);
767 mutex_unlock(&u132->scheduler_lock);
768 u132_hcd_giveback_urb(u132, endp, urb, 0);
769 return;
770 }
771}
772
773static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf,
774 int len, int toggle_bits, int error_count, int condition_code,
775 int repeat_number, int halted, int skipped, int actual, int non_null)
776{
777 struct u132_endp *endp = data;
778 struct u132 *u132 = endp->u132;
779 u8 address = u132->addr[endp->usb_addr].address;
780 struct u132_udev *udev = &u132->udev[address];
781 mutex_lock(&u132->scheduler_lock);
782 if (u132->going > 1) {
783 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
784 , u132->going);
785 mutex_unlock(&u132->scheduler_lock);
786 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
787 return;
788 } else if (endp->dequeueing) {
789 endp->dequeueing = 0;
790 mutex_unlock(&u132->scheduler_lock);
791 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
792 return;
793 } else if (u132->going > 0) {
794 dev_err(&u132->platform_dev->dev, "device is being removed "
795 "urb=%p\n", urb);
796 mutex_unlock(&u132->scheduler_lock);
797 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
798 return;
799 } else if (!urb->unlinked) {
800 struct u132_ring *ring = endp->ring;
801 u8 *u = urb->transfer_buffer + urb->actual_length;
802 u8 *b = buf;
803 int L = len;
804
805 while (L-- > 0)
806 *u++ = *b++;
807
808 urb->actual_length += len;
809 if ((condition_code == TD_CC_NOERROR) &&
810 (urb->transfer_buffer_length > urb->actual_length)) {
811 int retval;
812 endp->toggle_bits = toggle_bits;
813 usb_settoggle(udev->usb_device, endp->usb_endp, 0,
814 1 & toggle_bits);
815 mutex_unlock(&u132->scheduler_lock);
816 retval = usb_ftdi_elan_edset_input(u132->platform_dev,
817 ring->number, endp, urb, address,
818 endp->usb_endp, endp->toggle_bits,
819 u132_hcd_bulk_input_recv);
820 if (retval != 0)
821 u132_hcd_giveback_urb(u132, endp, urb, retval);
822 return;
823 } else if (condition_code == TD_CC_NOERROR) {
824 endp->toggle_bits = toggle_bits;
825 usb_settoggle(udev->usb_device, endp->usb_endp, 0,
826 1 & toggle_bits);
827 mutex_unlock(&u132->scheduler_lock);
828 u132_hcd_giveback_urb(u132, endp, urb,
829 cc_to_error[condition_code]);
830 return;
831 } else if ((condition_code == TD_DATAUNDERRUN) &&
832 ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) {
833 endp->toggle_bits = toggle_bits;
834 usb_settoggle(udev->usb_device, endp->usb_endp, 0,
835 1 & toggle_bits);
836 mutex_unlock(&u132->scheduler_lock);
837 u132_hcd_giveback_urb(u132, endp, urb, 0);
838 return;
839 } else if (condition_code == TD_DATAUNDERRUN) {
840 endp->toggle_bits = toggle_bits;
841 usb_settoggle(udev->usb_device, endp->usb_endp, 0,
842 1 & toggle_bits);
843 dev_warn(&u132->platform_dev->dev, "urb=%p(SHORT NOT OK"
844 ") giving back BULK IN %s\n", urb,
845 cc_to_text[condition_code]);
846 mutex_unlock(&u132->scheduler_lock);
847 u132_hcd_giveback_urb(u132, endp, urb, 0);
848 return;
849 } else if (condition_code == TD_CC_STALL) {
850 endp->toggle_bits = 0x2;
851 usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0);
852 mutex_unlock(&u132->scheduler_lock);
853 u132_hcd_giveback_urb(u132, endp, urb,
854 cc_to_error[condition_code]);
855 return;
856 } else {
857 endp->toggle_bits = 0x2;
858 usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0);
859 dev_err(&u132->platform_dev->dev, "urb=%p giving back B"
860 "ULK IN code=%d %s\n", urb, condition_code,
861 cc_to_text[condition_code]);
862 mutex_unlock(&u132->scheduler_lock);
863 u132_hcd_giveback_urb(u132, endp, urb,
864 cc_to_error[condition_code]);
865 return;
866 }
867 } else {
868 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
869 "unlinked=%d\n", urb, urb->unlinked);
870 mutex_unlock(&u132->scheduler_lock);
871 u132_hcd_giveback_urb(u132, endp, urb, 0);
872 return;
873 }
874}
875
876static void u132_hcd_configure_empty_sent(void *data, struct urb *urb, u8 *buf,
877 int len, int toggle_bits, int error_count, int condition_code,
878 int repeat_number, int halted, int skipped, int actual, int non_null)
879{
880 struct u132_endp *endp = data;
881 struct u132 *u132 = endp->u132;
882 mutex_lock(&u132->scheduler_lock);
883 if (u132->going > 1) {
884 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
885 , u132->going);
886 mutex_unlock(&u132->scheduler_lock);
887 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
888 return;
889 } else if (endp->dequeueing) {
890 endp->dequeueing = 0;
891 mutex_unlock(&u132->scheduler_lock);
892 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
893 return;
894 } else if (u132->going > 0) {
895 dev_err(&u132->platform_dev->dev, "device is being removed "
896 "urb=%p\n", urb);
897 mutex_unlock(&u132->scheduler_lock);
898 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
899 return;
900 } else if (!urb->unlinked) {
901 mutex_unlock(&u132->scheduler_lock);
902 u132_hcd_giveback_urb(u132, endp, urb, 0);
903 return;
904 } else {
905 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
906 "unlinked=%d\n", urb, urb->unlinked);
907 mutex_unlock(&u132->scheduler_lock);
908 u132_hcd_giveback_urb(u132, endp, urb, 0);
909 return;
910 }
911}
912
913static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf,
914 int len, int toggle_bits, int error_count, int condition_code,
915 int repeat_number, int halted, int skipped, int actual, int non_null)
916{
917 struct u132_endp *endp = data;
918 struct u132 *u132 = endp->u132;
919 u8 address = u132->addr[endp->usb_addr].address;
920 mutex_lock(&u132->scheduler_lock);
921 if (u132->going > 1) {
922 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
923 , u132->going);
924 mutex_unlock(&u132->scheduler_lock);
925 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
926 return;
927 } else if (endp->dequeueing) {
928 endp->dequeueing = 0;
929 mutex_unlock(&u132->scheduler_lock);
930 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
931 return;
932 } else if (u132->going > 0) {
933 dev_err(&u132->platform_dev->dev, "device is being removed "
934 "urb=%p\n", urb);
935 mutex_unlock(&u132->scheduler_lock);
936 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
937 return;
938 } else if (!urb->unlinked) {
939 struct u132_ring *ring = endp->ring;
940 u8 *u = urb->transfer_buffer;
941 u8 *b = buf;
942 int L = len;
943
944 while (L-- > 0)
945 *u++ = *b++;
946
947 urb->actual_length = len;
948 if ((condition_code == TD_CC_NOERROR) || ((condition_code ==
949 TD_DATAUNDERRUN) && ((urb->transfer_flags &
950 URB_SHORT_NOT_OK) == 0))) {
951 int retval;
952 mutex_unlock(&u132->scheduler_lock);
953 retval = usb_ftdi_elan_edset_empty(u132->platform_dev,
954 ring->number, endp, urb, address,
955 endp->usb_endp, 0x3,
956 u132_hcd_configure_empty_sent);
957 if (retval != 0)
958 u132_hcd_giveback_urb(u132, endp, urb, retval);
959 return;
960 } else if (condition_code == TD_CC_STALL) {
961 mutex_unlock(&u132->scheduler_lock);
962 dev_warn(&u132->platform_dev->dev, "giving back SETUP I"
963 "NPUT STALL urb %p\n", urb);
964 u132_hcd_giveback_urb(u132, endp, urb,
965 cc_to_error[condition_code]);
966 return;
967 } else {
968 mutex_unlock(&u132->scheduler_lock);
969 dev_err(&u132->platform_dev->dev, "giving back SETUP IN"
970 "PUT %s urb %p\n", cc_to_text[condition_code],
971 urb);
972 u132_hcd_giveback_urb(u132, endp, urb,
973 cc_to_error[condition_code]);
974 return;
975 }
976 } else {
977 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
978 "unlinked=%d\n", urb, urb->unlinked);
979 mutex_unlock(&u132->scheduler_lock);
980 u132_hcd_giveback_urb(u132, endp, urb, 0);
981 return;
982 }
983}
984
985static void u132_hcd_configure_empty_recv(void *data, struct urb *urb, u8 *buf,
986 int len, int toggle_bits, int error_count, int condition_code,
987 int repeat_number, int halted, int skipped, int actual, int non_null)
988{
989 struct u132_endp *endp = data;
990 struct u132 *u132 = endp->u132;
991 mutex_lock(&u132->scheduler_lock);
992 if (u132->going > 1) {
993 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
994 , u132->going);
995 mutex_unlock(&u132->scheduler_lock);
996 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
997 return;
998 } else if (endp->dequeueing) {
999 endp->dequeueing = 0;
1000 mutex_unlock(&u132->scheduler_lock);
1001 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1002 return;
1003 } else if (u132->going > 0) {
1004 dev_err(&u132->platform_dev->dev, "device is being removed "
1005 "urb=%p\n", urb);
1006 mutex_unlock(&u132->scheduler_lock);
1007 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1008 return;
1009 } else if (!urb->unlinked) {
1010 mutex_unlock(&u132->scheduler_lock);
1011 u132_hcd_giveback_urb(u132, endp, urb, 0);
1012 return;
1013 } else {
1014 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
1015 "unlinked=%d\n", urb, urb->unlinked);
1016 mutex_unlock(&u132->scheduler_lock);
1017 u132_hcd_giveback_urb(u132, endp, urb, 0);
1018 return;
1019 }
1020}
1021
1022static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf,
1023 int len, int toggle_bits, int error_count, int condition_code,
1024 int repeat_number, int halted, int skipped, int actual, int non_null)
1025{
1026 struct u132_endp *endp = data;
1027 struct u132 *u132 = endp->u132;
1028 u8 address = u132->addr[endp->usb_addr].address;
1029 mutex_lock(&u132->scheduler_lock);
1030 if (u132->going > 1) {
1031 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1032 , u132->going);
1033 mutex_unlock(&u132->scheduler_lock);
1034 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1035 return;
1036 } else if (endp->dequeueing) {
1037 endp->dequeueing = 0;
1038 mutex_unlock(&u132->scheduler_lock);
1039 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1040 return;
1041 } else if (u132->going > 0) {
1042 dev_err(&u132->platform_dev->dev, "device is being removed "
1043 "urb=%p\n", urb);
1044 mutex_unlock(&u132->scheduler_lock);
1045 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1046 return;
1047 } else if (!urb->unlinked) {
1048 if (usb_pipein(urb->pipe)) {
1049 int retval;
1050 struct u132_ring *ring = endp->ring;
1051 mutex_unlock(&u132->scheduler_lock);
1052 retval = usb_ftdi_elan_edset_input(u132->platform_dev,
1053 ring->number, endp, urb, address,
1054 endp->usb_endp, 0,
1055 u132_hcd_configure_input_recv);
1056 if (retval != 0)
1057 u132_hcd_giveback_urb(u132, endp, urb, retval);
1058 return;
1059 } else {
1060 int retval;
1061 struct u132_ring *ring = endp->ring;
1062 mutex_unlock(&u132->scheduler_lock);
1063 retval = usb_ftdi_elan_edset_input(u132->platform_dev,
1064 ring->number, endp, urb, address,
1065 endp->usb_endp, 0,
1066 u132_hcd_configure_empty_recv);
1067 if (retval != 0)
1068 u132_hcd_giveback_urb(u132, endp, urb, retval);
1069 return;
1070 }
1071 } else {
1072 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
1073 "unlinked=%d\n", urb, urb->unlinked);
1074 mutex_unlock(&u132->scheduler_lock);
1075 u132_hcd_giveback_urb(u132, endp, urb, 0);
1076 return;
1077 }
1078}
1079
1080static void u132_hcd_enumeration_empty_recv(void *data, struct urb *urb,
1081 u8 *buf, int len, int toggle_bits, int error_count, int condition_code,
1082 int repeat_number, int halted, int skipped, int actual, int non_null)
1083{
1084 struct u132_endp *endp = data;
1085 struct u132 *u132 = endp->u132;
1086 u8 address = u132->addr[endp->usb_addr].address;
1087 struct u132_udev *udev = &u132->udev[address];
1088 mutex_lock(&u132->scheduler_lock);
1089 if (u132->going > 1) {
1090 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1091 , u132->going);
1092 mutex_unlock(&u132->scheduler_lock);
1093 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1094 return;
1095 } else if (endp->dequeueing) {
1096 endp->dequeueing = 0;
1097 mutex_unlock(&u132->scheduler_lock);
1098 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1099 return;
1100 } else if (u132->going > 0) {
1101 dev_err(&u132->platform_dev->dev, "device is being removed "
1102 "urb=%p\n", urb);
1103 mutex_unlock(&u132->scheduler_lock);
1104 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1105 return;
1106 } else if (!urb->unlinked) {
1107 u132->addr[0].address = 0;
1108 endp->usb_addr = udev->usb_addr;
1109 mutex_unlock(&u132->scheduler_lock);
1110 u132_hcd_giveback_urb(u132, endp, urb, 0);
1111 return;
1112 } else {
1113 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
1114 "unlinked=%d\n", urb, urb->unlinked);
1115 mutex_unlock(&u132->scheduler_lock);
1116 u132_hcd_giveback_urb(u132, endp, urb, 0);
1117 return;
1118 }
1119}
1120
1121static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb,
1122 u8 *buf, int len, int toggle_bits, int error_count, int condition_code,
1123 int repeat_number, int halted, int skipped, int actual, int non_null)
1124{
1125 struct u132_endp *endp = data;
1126 struct u132 *u132 = endp->u132;
1127 mutex_lock(&u132->scheduler_lock);
1128 if (u132->going > 1) {
1129 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1130 , u132->going);
1131 mutex_unlock(&u132->scheduler_lock);
1132 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1133 return;
1134 } else if (endp->dequeueing) {
1135 endp->dequeueing = 0;
1136 mutex_unlock(&u132->scheduler_lock);
1137 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1138 return;
1139 } else if (u132->going > 0) {
1140 dev_err(&u132->platform_dev->dev, "device is being removed "
1141 "urb=%p\n", urb);
1142 mutex_unlock(&u132->scheduler_lock);
1143 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1144 return;
1145 } else if (!urb->unlinked) {
1146 int retval;
1147 struct u132_ring *ring = endp->ring;
1148 mutex_unlock(&u132->scheduler_lock);
1149 retval = usb_ftdi_elan_edset_input(u132->platform_dev,
1150 ring->number, endp, urb, 0, endp->usb_endp, 0,
1151 u132_hcd_enumeration_empty_recv);
1152 if (retval != 0)
1153 u132_hcd_giveback_urb(u132, endp, urb, retval);
1154 return;
1155 } else {
1156 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
1157 "unlinked=%d\n", urb, urb->unlinked);
1158 mutex_unlock(&u132->scheduler_lock);
1159 u132_hcd_giveback_urb(u132, endp, urb, 0);
1160 return;
1161 }
1162}
1163
1164static void u132_hcd_initial_empty_sent(void *data, struct urb *urb, u8 *buf,
1165 int len, int toggle_bits, int error_count, int condition_code,
1166 int repeat_number, int halted, int skipped, int actual, int non_null)
1167{
1168 struct u132_endp *endp = data;
1169 struct u132 *u132 = endp->u132;
1170 mutex_lock(&u132->scheduler_lock);
1171 if (u132->going > 1) {
1172 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1173 , u132->going);
1174 mutex_unlock(&u132->scheduler_lock);
1175 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1176 return;
1177 } else if (endp->dequeueing) {
1178 endp->dequeueing = 0;
1179 mutex_unlock(&u132->scheduler_lock);
1180 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1181 return;
1182 } else if (u132->going > 0) {
1183 dev_err(&u132->platform_dev->dev, "device is being removed "
1184 "urb=%p\n", urb);
1185 mutex_unlock(&u132->scheduler_lock);
1186 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1187 return;
1188 } else if (!urb->unlinked) {
1189 mutex_unlock(&u132->scheduler_lock);
1190 u132_hcd_giveback_urb(u132, endp, urb, 0);
1191 return;
1192 } else {
1193 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
1194 "unlinked=%d\n", urb, urb->unlinked);
1195 mutex_unlock(&u132->scheduler_lock);
1196 u132_hcd_giveback_urb(u132, endp, urb, 0);
1197 return;
1198 }
1199}
1200
1201static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf,
1202 int len, int toggle_bits, int error_count, int condition_code,
1203 int repeat_number, int halted, int skipped, int actual, int non_null)
1204{
1205 struct u132_endp *endp = data;
1206 struct u132 *u132 = endp->u132;
1207 u8 address = u132->addr[endp->usb_addr].address;
1208 mutex_lock(&u132->scheduler_lock);
1209 if (u132->going > 1) {
1210 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1211 , u132->going);
1212 mutex_unlock(&u132->scheduler_lock);
1213 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1214 return;
1215 } else if (endp->dequeueing) {
1216 endp->dequeueing = 0;
1217 mutex_unlock(&u132->scheduler_lock);
1218 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1219 return;
1220 } else if (u132->going > 0) {
1221 dev_err(&u132->platform_dev->dev, "device is being removed "
1222 "urb=%p\n", urb);
1223 mutex_unlock(&u132->scheduler_lock);
1224 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1225 return;
1226 } else if (!urb->unlinked) {
1227 int retval;
1228 struct u132_ring *ring = endp->ring;
1229 u8 *u = urb->transfer_buffer;
1230 u8 *b = buf;
1231 int L = len;
1232
1233 while (L-- > 0)
1234 *u++ = *b++;
1235
1236 urb->actual_length = len;
1237 mutex_unlock(&u132->scheduler_lock);
1238 retval = usb_ftdi_elan_edset_empty(u132->platform_dev,
1239 ring->number, endp, urb, address, endp->usb_endp, 0x3,
1240 u132_hcd_initial_empty_sent);
1241 if (retval != 0)
1242 u132_hcd_giveback_urb(u132, endp, urb, retval);
1243 return;
1244 } else {
1245 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
1246 "unlinked=%d\n", urb, urb->unlinked);
1247 mutex_unlock(&u132->scheduler_lock);
1248 u132_hcd_giveback_urb(u132, endp, urb, 0);
1249 return;
1250 }
1251}
1252
1253static void u132_hcd_initial_setup_sent(void *data, struct urb *urb, u8 *buf,
1254 int len, int toggle_bits, int error_count, int condition_code,
1255 int repeat_number, int halted, int skipped, int actual, int non_null)
1256{
1257 struct u132_endp *endp = data;
1258 struct u132 *u132 = endp->u132;
1259 u8 address = u132->addr[endp->usb_addr].address;
1260 mutex_lock(&u132->scheduler_lock);
1261 if (u132->going > 1) {
1262 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1263 , u132->going);
1264 mutex_unlock(&u132->scheduler_lock);
1265 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1266 return;
1267 } else if (endp->dequeueing) {
1268 endp->dequeueing = 0;
1269 mutex_unlock(&u132->scheduler_lock);
1270 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1271 return;
1272 } else if (u132->going > 0) {
1273 dev_err(&u132->platform_dev->dev, "device is being removed "
1274 "urb=%p\n", urb);
1275 mutex_unlock(&u132->scheduler_lock);
1276 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1277 return;
1278 } else if (!urb->unlinked) {
1279 int retval;
1280 struct u132_ring *ring = endp->ring;
1281 mutex_unlock(&u132->scheduler_lock);
1282 retval = usb_ftdi_elan_edset_input(u132->platform_dev,
1283 ring->number, endp, urb, address, endp->usb_endp, 0,
1284 u132_hcd_initial_input_recv);
1285 if (retval != 0)
1286 u132_hcd_giveback_urb(u132, endp, urb, retval);
1287 return;
1288 } else {
1289 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
1290 "unlinked=%d\n", urb, urb->unlinked);
1291 mutex_unlock(&u132->scheduler_lock);
1292 u132_hcd_giveback_urb(u132, endp, urb, 0);
1293 return;
1294 }
1295}
1296
1297/*
1298* this work function is only executed from the work queue
1299*
1300*/
1301static void u132_hcd_ring_work_scheduler(struct work_struct *work)
1302{
1303 struct u132_ring *ring =
1304 container_of(work, struct u132_ring, scheduler.work);
1305 struct u132 *u132 = ring->u132;
1306 mutex_lock(&u132->scheduler_lock);
1307 if (ring->in_use) {
1308 mutex_unlock(&u132->scheduler_lock);
1309 u132_ring_put_kref(u132, ring);
1310 return;
1311 } else if (ring->curr_endp) {
1312 struct u132_endp *last_endp = ring->curr_endp;
1313 struct list_head *scan;
1314 struct list_head *head = &last_endp->endp_ring;
1315 unsigned long wakeup = 0;
1316 list_for_each(scan, head) {
1317 struct u132_endp *endp = list_entry(scan,
1318 struct u132_endp, endp_ring);
1319 if (endp->queue_next == endp->queue_last) {
1320 } else if ((endp->delayed == 0)
1321 || time_after_eq(jiffies, endp->jiffies)) {
1322 ring->curr_endp = endp;
1323 u132_endp_cancel_work(u132, last_endp);
1324 u132_endp_queue_work(u132, last_endp, 0);
1325 mutex_unlock(&u132->scheduler_lock);
1326 u132_ring_put_kref(u132, ring);
1327 return;
1328 } else {
1329 unsigned long delta = endp->jiffies - jiffies;
1330 if (delta > wakeup)
1331 wakeup = delta;
1332 }
1333 }
1334 if (last_endp->queue_next == last_endp->queue_last) {
1335 } else if ((last_endp->delayed == 0) || time_after_eq(jiffies,
1336 last_endp->jiffies)) {
1337 u132_endp_cancel_work(u132, last_endp);
1338 u132_endp_queue_work(u132, last_endp, 0);
1339 mutex_unlock(&u132->scheduler_lock);
1340 u132_ring_put_kref(u132, ring);
1341 return;
1342 } else {
1343 unsigned long delta = last_endp->jiffies - jiffies;
1344 if (delta > wakeup)
1345 wakeup = delta;
1346 }
1347 if (wakeup > 0) {
1348 u132_ring_requeue_work(u132, ring, wakeup);
1349 mutex_unlock(&u132->scheduler_lock);
1350 return;
1351 } else {
1352 mutex_unlock(&u132->scheduler_lock);
1353 u132_ring_put_kref(u132, ring);
1354 return;
1355 }
1356 } else {
1357 mutex_unlock(&u132->scheduler_lock);
1358 u132_ring_put_kref(u132, ring);
1359 return;
1360 }
1361}
1362
1363static void u132_hcd_endp_work_scheduler(struct work_struct *work)
1364{
1365 struct u132_ring *ring;
1366 struct u132_endp *endp =
1367 container_of(work, struct u132_endp, scheduler.work);
1368 struct u132 *u132 = endp->u132;
1369 mutex_lock(&u132->scheduler_lock);
1370 ring = endp->ring;
1371 if (endp->edset_flush) {
1372 endp->edset_flush = 0;
1373 if (endp->dequeueing)
1374 usb_ftdi_elan_edset_flush(u132->platform_dev,
1375 ring->number, endp);
1376 mutex_unlock(&u132->scheduler_lock);
1377 u132_endp_put_kref(u132, endp);
1378 return;
1379 } else if (endp->active) {
1380 mutex_unlock(&u132->scheduler_lock);
1381 u132_endp_put_kref(u132, endp);
1382 return;
1383 } else if (ring->in_use) {
1384 mutex_unlock(&u132->scheduler_lock);
1385 u132_endp_put_kref(u132, endp);
1386 return;
1387 } else if (endp->queue_next == endp->queue_last) {
1388 mutex_unlock(&u132->scheduler_lock);
1389 u132_endp_put_kref(u132, endp);
1390 return;
1391 } else if (endp->pipetype == PIPE_INTERRUPT) {
1392 u8 address = u132->addr[endp->usb_addr].address;
1393 if (ring->in_use) {
1394 mutex_unlock(&u132->scheduler_lock);
1395 u132_endp_put_kref(u132, endp);
1396 return;
1397 } else {
1398 int retval;
1399 struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1400 endp->queue_next];
1401 endp->active = 1;
1402 ring->curr_endp = endp;
1403 ring->in_use = 1;
1404 mutex_unlock(&u132->scheduler_lock);
1405 retval = edset_single(u132, ring, endp, urb, address,
1406 endp->toggle_bits, u132_hcd_interrupt_recv);
1407 if (retval != 0)
1408 u132_hcd_giveback_urb(u132, endp, urb, retval);
1409 return;
1410 }
1411 } else if (endp->pipetype == PIPE_CONTROL) {
1412 u8 address = u132->addr[endp->usb_addr].address;
1413 if (ring->in_use) {
1414 mutex_unlock(&u132->scheduler_lock);
1415 u132_endp_put_kref(u132, endp);
1416 return;
1417 } else if (address == 0) {
1418 int retval;
1419 struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1420 endp->queue_next];
1421 endp->active = 1;
1422 ring->curr_endp = endp;
1423 ring->in_use = 1;
1424 mutex_unlock(&u132->scheduler_lock);
1425 retval = edset_setup(u132, ring, endp, urb, address,
1426 0x2, u132_hcd_initial_setup_sent);
1427 if (retval != 0)
1428 u132_hcd_giveback_urb(u132, endp, urb, retval);
1429 return;
1430 } else if (endp->usb_addr == 0) {
1431 int retval;
1432 struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1433 endp->queue_next];
1434 endp->active = 1;
1435 ring->curr_endp = endp;
1436 ring->in_use = 1;
1437 mutex_unlock(&u132->scheduler_lock);
1438 retval = edset_setup(u132, ring, endp, urb, 0, 0x2,
1439 u132_hcd_enumeration_address_sent);
1440 if (retval != 0)
1441 u132_hcd_giveback_urb(u132, endp, urb, retval);
1442 return;
1443 } else {
1444 int retval;
1445 struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1446 endp->queue_next];
1447 address = u132->addr[endp->usb_addr].address;
1448 endp->active = 1;
1449 ring->curr_endp = endp;
1450 ring->in_use = 1;
1451 mutex_unlock(&u132->scheduler_lock);
1452 retval = edset_setup(u132, ring, endp, urb, address,
1453 0x2, u132_hcd_configure_setup_sent);
1454 if (retval != 0)
1455 u132_hcd_giveback_urb(u132, endp, urb, retval);
1456 return;
1457 }
1458 } else {
1459 if (endp->input) {
1460 u8 address = u132->addr[endp->usb_addr].address;
1461 if (ring->in_use) {
1462 mutex_unlock(&u132->scheduler_lock);
1463 u132_endp_put_kref(u132, endp);
1464 return;
1465 } else {
1466 int retval;
1467 struct urb *urb = endp->urb_list[
1468 ENDP_QUEUE_MASK & endp->queue_next];
1469 endp->active = 1;
1470 ring->curr_endp = endp;
1471 ring->in_use = 1;
1472 mutex_unlock(&u132->scheduler_lock);
1473 retval = edset_input(u132, ring, endp, urb,
1474 address, endp->toggle_bits,
1475 u132_hcd_bulk_input_recv);
1476 if (retval == 0) {
1477 } else
1478 u132_hcd_giveback_urb(u132, endp, urb,
1479 retval);
1480 return;
1481 }
1482 } else { /* output pipe */
1483 u8 address = u132->addr[endp->usb_addr].address;
1484 if (ring->in_use) {
1485 mutex_unlock(&u132->scheduler_lock);
1486 u132_endp_put_kref(u132, endp);
1487 return;
1488 } else {
1489 int retval;
1490 struct urb *urb = endp->urb_list[
1491 ENDP_QUEUE_MASK & endp->queue_next];
1492 endp->active = 1;
1493 ring->curr_endp = endp;
1494 ring->in_use = 1;
1495 mutex_unlock(&u132->scheduler_lock);
1496 retval = edset_output(u132, ring, endp, urb,
1497 address, endp->toggle_bits,
1498 u132_hcd_bulk_output_sent);
1499 if (retval == 0) {
1500 } else
1501 u132_hcd_giveback_urb(u132, endp, urb,
1502 retval);
1503 return;
1504 }
1505 }
1506 }
1507}
1508#ifdef CONFIG_PM
1509
1510static void port_power(struct u132 *u132, int pn, int is_on)
1511{
1512 u132->port[pn].power = is_on;
1513}
1514
1515#endif
1516
1517static void u132_power(struct u132 *u132, int is_on)
1518{
1519 struct usb_hcd *hcd = u132_to_hcd(u132)
1520 ; /* hub is inactive unless the port is powered */
1521 if (is_on) {
1522 if (u132->power)
1523 return;
1524 u132->power = 1;
1525 } else {
1526 u132->power = 0;
1527 hcd->state = HC_STATE_HALT;
1528 }
1529}
1530
1531static int u132_periodic_reinit(struct u132 *u132)
1532{
1533 int retval;
1534 u32 fi = u132->hc_fminterval & 0x03fff;
1535 u32 fit;
1536 u32 fminterval;
1537 retval = u132_read_pcimem(u132, fminterval, &fminterval);
1538 if (retval)
1539 return retval;
1540 fit = fminterval & FIT;
1541 retval = u132_write_pcimem(u132, fminterval,
1542 (fit ^ FIT) | u132->hc_fminterval);
1543 if (retval)
1544 return retval;
1545 retval = u132_write_pcimem(u132, periodicstart,
1546 ((9 * fi) / 10) & 0x3fff);
1547 if (retval)
1548 return retval;
1549 return 0;
1550}
1551
1552static char *hcfs2string(int state)
1553{
1554 switch (state) {
1555 case OHCI_USB_RESET:
1556 return "reset";
1557 case OHCI_USB_RESUME:
1558 return "resume";
1559 case OHCI_USB_OPER:
1560 return "operational";
1561 case OHCI_USB_SUSPEND:
1562 return "suspend";
1563 }
1564 return "?";
1565}
1566
1567static int u132_init(struct u132 *u132)
1568{
1569 int retval;
1570 u32 control;
1571 u132_disable(u132);
1572 u132->next_statechange = jiffies;
1573 retval = u132_write_pcimem(u132, intrdisable, OHCI_INTR_MIE);
1574 if (retval)
1575 return retval;
1576 retval = u132_read_pcimem(u132, control, &control);
1577 if (retval)
1578 return retval;
1579 if (u132->num_ports == 0) {
1580 u32 rh_a = -1;
1581 retval = u132_read_pcimem(u132, roothub.a, &rh_a);
1582 if (retval)
1583 return retval;
1584 u132->num_ports = rh_a & RH_A_NDP;
1585 retval = read_roothub_info(u132);
1586 if (retval)
1587 return retval;
1588 }
1589 if (u132->num_ports > MAX_U132_PORTS)
1590 return -EINVAL;
1591
1592 return 0;
1593}
1594
1595
1596/* Start an OHCI controller, set the BUS operational
1597* resets USB and controller
1598* enable interrupts
1599*/
1600static int u132_run(struct u132 *u132)
1601{
1602 int retval;
1603 u32 control;
1604 u32 status;
1605 u32 fminterval;
1606 u32 periodicstart;
1607 u32 cmdstatus;
1608 u32 roothub_a;
1609 int mask = OHCI_INTR_INIT;
1610 int first = u132->hc_fminterval == 0;
1611 int sleep_time = 0;
1612 int reset_timeout = 30; /* ... allow extra time */
1613 u132_disable(u132);
1614 if (first) {
1615 u32 temp;
1616 retval = u132_read_pcimem(u132, fminterval, &temp);
1617 if (retval)
1618 return retval;
1619 u132->hc_fminterval = temp & 0x3fff;
1620 u132->hc_fminterval |= FSMP(u132->hc_fminterval) << 16;
1621 }
1622 retval = u132_read_pcimem(u132, control, &u132->hc_control);
1623 if (retval)
1624 return retval;
1625 dev_info(&u132->platform_dev->dev, "resetting from state '%s', control "
1626 "= %08X\n", hcfs2string(u132->hc_control & OHCI_CTRL_HCFS),
1627 u132->hc_control);
1628 switch (u132->hc_control & OHCI_CTRL_HCFS) {
1629 case OHCI_USB_OPER:
1630 sleep_time = 0;
1631 break;
1632 case OHCI_USB_SUSPEND:
1633 case OHCI_USB_RESUME:
1634 u132->hc_control &= OHCI_CTRL_RWC;
1635 u132->hc_control |= OHCI_USB_RESUME;
1636 sleep_time = 10;
1637 break;
1638 default:
1639 u132->hc_control &= OHCI_CTRL_RWC;
1640 u132->hc_control |= OHCI_USB_RESET;
1641 sleep_time = 50;
1642 break;
1643 }
1644 retval = u132_write_pcimem(u132, control, u132->hc_control);
1645 if (retval)
1646 return retval;
1647 retval = u132_read_pcimem(u132, control, &control);
1648 if (retval)
1649 return retval;
1650 msleep(sleep_time);
1651 retval = u132_read_pcimem(u132, roothub.a, &roothub_a);
1652 if (retval)
1653 return retval;
1654 if (!(roothub_a & RH_A_NPS)) {
1655 int temp; /* power down each port */
1656 for (temp = 0; temp < u132->num_ports; temp++) {
1657 retval = u132_write_pcimem(u132,
1658 roothub.portstatus[temp], RH_PS_LSDA);
1659 if (retval)
1660 return retval;
1661 }
1662 }
1663 retval = u132_read_pcimem(u132, control, &control);
1664 if (retval)
1665 return retval;
1666retry:
1667 retval = u132_read_pcimem(u132, cmdstatus, &status);
1668 if (retval)
1669 return retval;
1670 retval = u132_write_pcimem(u132, cmdstatus, OHCI_HCR);
1671 if (retval)
1672 return retval;
1673extra: {
1674 retval = u132_read_pcimem(u132, cmdstatus, &status);
1675 if (retval)
1676 return retval;
1677 if (0 != (status & OHCI_HCR)) {
1678 if (--reset_timeout == 0) {
1679 dev_err(&u132->platform_dev->dev, "USB HC reset"
1680 " timed out!\n");
1681 return -ENODEV;
1682 } else {
1683 msleep(5);
1684 goto extra;
1685 }
1686 }
1687 }
1688 if (u132->flags & OHCI_QUIRK_INITRESET) {
1689 retval = u132_write_pcimem(u132, control, u132->hc_control);
1690 if (retval)
1691 return retval;
1692 retval = u132_read_pcimem(u132, control, &control);
1693 if (retval)
1694 return retval;
1695 }
1696 retval = u132_write_pcimem(u132, ed_controlhead, 0x00000000);
1697 if (retval)
1698 return retval;
1699 retval = u132_write_pcimem(u132, ed_bulkhead, 0x11000000);
1700 if (retval)
1701 return retval;
1702 retval = u132_write_pcimem(u132, hcca, 0x00000000);
1703 if (retval)
1704 return retval;
1705 retval = u132_periodic_reinit(u132);
1706 if (retval)
1707 return retval;
1708 retval = u132_read_pcimem(u132, fminterval, &fminterval);
1709 if (retval)
1710 return retval;
1711 retval = u132_read_pcimem(u132, periodicstart, &periodicstart);
1712 if (retval)
1713 return retval;
1714 if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) {
1715 if (!(u132->flags & OHCI_QUIRK_INITRESET)) {
1716 u132->flags |= OHCI_QUIRK_INITRESET;
1717 goto retry;
1718 } else
1719 dev_err(&u132->platform_dev->dev, "init err(%08x %04x)"
1720 "\n", fminterval, periodicstart);
1721 } /* start controller operations */
1722 u132->hc_control &= OHCI_CTRL_RWC;
1723 u132->hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER;
1724 retval = u132_write_pcimem(u132, control, u132->hc_control);
1725 if (retval)
1726 return retval;
1727 retval = u132_write_pcimem(u132, cmdstatus, OHCI_BLF);
1728 if (retval)
1729 return retval;
1730 retval = u132_read_pcimem(u132, cmdstatus, &cmdstatus);
1731 if (retval)
1732 return retval;
1733 retval = u132_read_pcimem(u132, control, &control);
1734 if (retval)
1735 return retval;
1736 u132_to_hcd(u132)->state = HC_STATE_RUNNING;
1737 retval = u132_write_pcimem(u132, roothub.status, RH_HS_DRWE);
1738 if (retval)
1739 return retval;
1740 retval = u132_write_pcimem(u132, intrstatus, mask);
1741 if (retval)
1742 return retval;
1743 retval = u132_write_pcimem(u132, intrdisable,
1744 OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO |
1745 OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH |
1746 OHCI_INTR_SO);
1747 if (retval)
1748 return retval; /* handle root hub init quirks ... */
1749 retval = u132_read_pcimem(u132, roothub.a, &roothub_a);
1750 if (retval)
1751 return retval;
1752 roothub_a &= ~(RH_A_PSM | RH_A_OCPM);
1753 if (u132->flags & OHCI_QUIRK_SUPERIO) {
1754 roothub_a |= RH_A_NOCP;
1755 roothub_a &= ~(RH_A_POTPGT | RH_A_NPS);
1756 retval = u132_write_pcimem(u132, roothub.a, roothub_a);
1757 if (retval)
1758 return retval;
1759 } else if ((u132->flags & OHCI_QUIRK_AMD756) || distrust_firmware) {
1760 roothub_a |= RH_A_NPS;
1761 retval = u132_write_pcimem(u132, roothub.a, roothub_a);
1762 if (retval)
1763 return retval;
1764 }
1765 retval = u132_write_pcimem(u132, roothub.status, RH_HS_LPSC);
1766 if (retval)
1767 return retval;
1768 retval = u132_write_pcimem(u132, roothub.b,
1769 (roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM);
1770 if (retval)
1771 return retval;
1772 retval = u132_read_pcimem(u132, control, &control);
1773 if (retval)
1774 return retval;
1775 mdelay((roothub_a >> 23) & 0x1fe);
1776 u132_to_hcd(u132)->state = HC_STATE_RUNNING;
1777 return 0;
1778}
1779
1780static void u132_hcd_stop(struct usb_hcd *hcd)
1781{
1782 struct u132 *u132 = hcd_to_u132(hcd);
1783 if (u132->going > 1) {
1784 dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p) has b"
1785 "een removed %d\n", u132, hcd, u132->going);
1786 } else if (u132->going > 0) {
1787 dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov"
1788 "ed\n", hcd);
1789 } else {
1790 mutex_lock(&u132->sw_lock);
1791 msleep(100);
1792 u132_power(u132, 0);
1793 mutex_unlock(&u132->sw_lock);
1794 }
1795}
1796
1797static int u132_hcd_start(struct usb_hcd *hcd)
1798{
1799 struct u132 *u132 = hcd_to_u132(hcd);
1800 if (u132->going > 1) {
1801 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1802 , u132->going);
1803 return -ENODEV;
1804 } else if (u132->going > 0) {
1805 dev_err(&u132->platform_dev->dev, "device is being removed\n");
1806 return -ESHUTDOWN;
1807 } else if (hcd->self.controller) {
1808 int retval;
1809 struct platform_device *pdev =
1810 to_platform_device(hcd->self.controller);
1811 u16 vendor = ((struct u132_platform_data *)
1812 (pdev->dev.platform_data))->vendor;
1813 u16 device = ((struct u132_platform_data *)
1814 (pdev->dev.platform_data))->device;
1815 mutex_lock(&u132->sw_lock);
1816 msleep(10);
1817 if (vendor == PCI_VENDOR_ID_AMD && device == 0x740c) {
1818 u132->flags = OHCI_QUIRK_AMD756;
1819 } else if (vendor == PCI_VENDOR_ID_OPTI && device == 0xc861) {
1820 dev_err(&u132->platform_dev->dev, "WARNING: OPTi workar"
1821 "ounds unavailable\n");
1822 } else if (vendor == PCI_VENDOR_ID_COMPAQ && device == 0xa0f8)
1823 u132->flags |= OHCI_QUIRK_ZFMICRO;
1824 retval = u132_run(u132);
1825 if (retval) {
1826 u132_disable(u132);
1827 u132->going = 1;
1828 }
1829 msleep(100);
1830 mutex_unlock(&u132->sw_lock);
1831 return retval;
1832 } else {
1833 dev_err(&u132->platform_dev->dev, "platform_device missing\n");
1834 return -ENODEV;
1835 }
1836}
1837
1838static int u132_hcd_reset(struct usb_hcd *hcd)
1839{
1840 struct u132 *u132 = hcd_to_u132(hcd);
1841 if (u132->going > 1) {
1842 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1843 , u132->going);
1844 return -ENODEV;
1845 } else if (u132->going > 0) {
1846 dev_err(&u132->platform_dev->dev, "device is being removed\n");
1847 return -ESHUTDOWN;
1848 } else {
1849 int retval;
1850 mutex_lock(&u132->sw_lock);
1851 retval = u132_init(u132);
1852 if (retval) {
1853 u132_disable(u132);
1854 u132->going = 1;
1855 }
1856 mutex_unlock(&u132->sw_lock);
1857 return retval;
1858 }
1859}
1860
1861static int create_endpoint_and_queue_int(struct u132 *u132,
1862 struct u132_udev *udev, struct urb *urb,
1863 struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address,
1864 gfp_t mem_flags)
1865{
1866 struct u132_ring *ring;
1867 unsigned long irqs;
1868 int rc;
1869 u8 endp_number;
1870 struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags);
1871
1872 if (!endp)
1873 return -ENOMEM;
1874
1875 spin_lock_init(&endp->queue_lock.slock);
1876 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
1877 rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb);
1878 if (rc) {
1879 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
1880 kfree(endp);
1881 return rc;
1882 }
1883
1884 endp_number = ++u132->num_endpoints;
1885 urb->ep->hcpriv = u132->endp[endp_number - 1] = endp;
1886 INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
1887 INIT_LIST_HEAD(&endp->urb_more);
1888 ring = endp->ring = &u132->ring[0];
1889 if (ring->curr_endp) {
1890 list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
1891 } else {
1892 INIT_LIST_HEAD(&endp->endp_ring);
1893 ring->curr_endp = endp;
1894 }
1895 ring->length += 1;
1896 endp->dequeueing = 0;
1897 endp->edset_flush = 0;
1898 endp->active = 0;
1899 endp->delayed = 0;
1900 endp->endp_number = endp_number;
1901 endp->u132 = u132;
1902 endp->hep = urb->ep;
1903 endp->pipetype = usb_pipetype(urb->pipe);
1904 u132_endp_init_kref(u132, endp);
1905 if (usb_pipein(urb->pipe)) {
1906 endp->toggle_bits = 0x2;
1907 usb_settoggle(udev->usb_device, usb_endp, 0, 0);
1908 endp->input = 1;
1909 endp->output = 0;
1910 udev->endp_number_in[usb_endp] = endp_number;
1911 u132_udev_get_kref(u132, udev);
1912 } else {
1913 endp->toggle_bits = 0x2;
1914 usb_settoggle(udev->usb_device, usb_endp, 1, 0);
1915 endp->input = 0;
1916 endp->output = 1;
1917 udev->endp_number_out[usb_endp] = endp_number;
1918 u132_udev_get_kref(u132, udev);
1919 }
1920 urb->hcpriv = u132;
1921 endp->delayed = 1;
1922 endp->jiffies = jiffies + msecs_to_jiffies(urb->interval);
1923 endp->udev_number = address;
1924 endp->usb_addr = usb_addr;
1925 endp->usb_endp = usb_endp;
1926 endp->queue_size = 1;
1927 endp->queue_last = 0;
1928 endp->queue_next = 0;
1929 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
1930 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
1931 u132_endp_queue_work(u132, endp, msecs_to_jiffies(urb->interval));
1932 return 0;
1933}
1934
1935static int queue_int_on_old_endpoint(struct u132 *u132,
1936 struct u132_udev *udev, struct urb *urb,
1937 struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
1938 u8 usb_endp, u8 address)
1939{
1940 urb->hcpriv = u132;
1941 endp->delayed = 1;
1942 endp->jiffies = jiffies + msecs_to_jiffies(urb->interval);
1943 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
1944 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
1945 } else {
1946 struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq),
1947 GFP_ATOMIC);
1948 if (urbq == NULL) {
1949 endp->queue_size -= 1;
1950 return -ENOMEM;
1951 } else {
1952 list_add_tail(&urbq->urb_more, &endp->urb_more);
1953 urbq->urb = urb;
1954 }
1955 }
1956 return 0;
1957}
1958
1959static int create_endpoint_and_queue_bulk(struct u132 *u132,
1960 struct u132_udev *udev, struct urb *urb,
1961 struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address,
1962 gfp_t mem_flags)
1963{
1964 int ring_number;
1965 struct u132_ring *ring;
1966 unsigned long irqs;
1967 int rc;
1968 u8 endp_number;
1969 struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags);
1970
1971 if (!endp)
1972 return -ENOMEM;
1973
1974 spin_lock_init(&endp->queue_lock.slock);
1975 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
1976 rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb);
1977 if (rc) {
1978 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
1979 kfree(endp);
1980 return rc;
1981 }
1982
1983 endp_number = ++u132->num_endpoints;
1984 urb->ep->hcpriv = u132->endp[endp_number - 1] = endp;
1985 INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
1986 INIT_LIST_HEAD(&endp->urb_more);
1987 endp->dequeueing = 0;
1988 endp->edset_flush = 0;
1989 endp->active = 0;
1990 endp->delayed = 0;
1991 endp->endp_number = endp_number;
1992 endp->u132 = u132;
1993 endp->hep = urb->ep;
1994 endp->pipetype = usb_pipetype(urb->pipe);
1995 u132_endp_init_kref(u132, endp);
1996 if (usb_pipein(urb->pipe)) {
1997 endp->toggle_bits = 0x2;
1998 usb_settoggle(udev->usb_device, usb_endp, 0, 0);
1999 ring_number = 3;
2000 endp->input = 1;
2001 endp->output = 0;
2002 udev->endp_number_in[usb_endp] = endp_number;
2003 u132_udev_get_kref(u132, udev);
2004 } else {
2005 endp->toggle_bits = 0x2;
2006 usb_settoggle(udev->usb_device, usb_endp, 1, 0);
2007 ring_number = 2;
2008 endp->input = 0;
2009 endp->output = 1;
2010 udev->endp_number_out[usb_endp] = endp_number;
2011 u132_udev_get_kref(u132, udev);
2012 }
2013 ring = endp->ring = &u132->ring[ring_number - 1];
2014 if (ring->curr_endp) {
2015 list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
2016 } else {
2017 INIT_LIST_HEAD(&endp->endp_ring);
2018 ring->curr_endp = endp;
2019 }
2020 ring->length += 1;
2021 urb->hcpriv = u132;
2022 endp->udev_number = address;
2023 endp->usb_addr = usb_addr;
2024 endp->usb_endp = usb_endp;
2025 endp->queue_size = 1;
2026 endp->queue_last = 0;
2027 endp->queue_next = 0;
2028 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2029 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2030 u132_endp_queue_work(u132, endp, 0);
2031 return 0;
2032}
2033
2034static int queue_bulk_on_old_endpoint(struct u132 *u132, struct u132_udev *udev,
2035 struct urb *urb,
2036 struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
2037 u8 usb_endp, u8 address)
2038{
2039 urb->hcpriv = u132;
2040 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2041 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2042 } else {
2043 struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq),
2044 GFP_ATOMIC);
2045 if (urbq == NULL) {
2046 endp->queue_size -= 1;
2047 return -ENOMEM;
2048 } else {
2049 list_add_tail(&urbq->urb_more, &endp->urb_more);
2050 urbq->urb = urb;
2051 }
2052 }
2053 return 0;
2054}
2055
2056static int create_endpoint_and_queue_control(struct u132 *u132,
2057 struct urb *urb,
2058 struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp,
2059 gfp_t mem_flags)
2060{
2061 struct u132_ring *ring;
2062 unsigned long irqs;
2063 int rc;
2064 u8 endp_number;
2065 struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags);
2066
2067 if (!endp)
2068 return -ENOMEM;
2069
2070 spin_lock_init(&endp->queue_lock.slock);
2071 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
2072 rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb);
2073 if (rc) {
2074 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2075 kfree(endp);
2076 return rc;
2077 }
2078
2079 endp_number = ++u132->num_endpoints;
2080 urb->ep->hcpriv = u132->endp[endp_number - 1] = endp;
2081 INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
2082 INIT_LIST_HEAD(&endp->urb_more);
2083 ring = endp->ring = &u132->ring[0];
2084 if (ring->curr_endp) {
2085 list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
2086 } else {
2087 INIT_LIST_HEAD(&endp->endp_ring);
2088 ring->curr_endp = endp;
2089 }
2090 ring->length += 1;
2091 endp->dequeueing = 0;
2092 endp->edset_flush = 0;
2093 endp->active = 0;
2094 endp->delayed = 0;
2095 endp->endp_number = endp_number;
2096 endp->u132 = u132;
2097 endp->hep = urb->ep;
2098 u132_endp_init_kref(u132, endp);
2099 u132_endp_get_kref(u132, endp);
2100 if (usb_addr == 0) {
2101 u8 address = u132->addr[usb_addr].address;
2102 struct u132_udev *udev = &u132->udev[address];
2103 endp->udev_number = address;
2104 endp->usb_addr = usb_addr;
2105 endp->usb_endp = usb_endp;
2106 endp->input = 1;
2107 endp->output = 1;
2108 endp->pipetype = usb_pipetype(urb->pipe);
2109 u132_udev_init_kref(u132, udev);
2110 u132_udev_get_kref(u132, udev);
2111 udev->endp_number_in[usb_endp] = endp_number;
2112 udev->endp_number_out[usb_endp] = endp_number;
2113 urb->hcpriv = u132;
2114 endp->queue_size = 1;
2115 endp->queue_last = 0;
2116 endp->queue_next = 0;
2117 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2118 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2119 u132_endp_queue_work(u132, endp, 0);
2120 return 0;
2121 } else { /*(usb_addr > 0) */
2122 u8 address = u132->addr[usb_addr].address;
2123 struct u132_udev *udev = &u132->udev[address];
2124 endp->udev_number = address;
2125 endp->usb_addr = usb_addr;
2126 endp->usb_endp = usb_endp;
2127 endp->input = 1;
2128 endp->output = 1;
2129 endp->pipetype = usb_pipetype(urb->pipe);
2130 u132_udev_get_kref(u132, udev);
2131 udev->enumeration = 2;
2132 udev->endp_number_in[usb_endp] = endp_number;
2133 udev->endp_number_out[usb_endp] = endp_number;
2134 urb->hcpriv = u132;
2135 endp->queue_size = 1;
2136 endp->queue_last = 0;
2137 endp->queue_next = 0;
2138 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2139 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2140 u132_endp_queue_work(u132, endp, 0);
2141 return 0;
2142 }
2143}
2144
2145static int queue_control_on_old_endpoint(struct u132 *u132,
2146 struct urb *urb,
2147 struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
2148 u8 usb_endp)
2149{
2150 if (usb_addr == 0) {
2151 if (usb_pipein(urb->pipe)) {
2152 urb->hcpriv = u132;
2153 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2154 endp->urb_list[ENDP_QUEUE_MASK &
2155 endp->queue_last++] = urb;
2156 } else {
2157 struct u132_urbq *urbq =
2158 kmalloc(sizeof(struct u132_urbq),
2159 GFP_ATOMIC);
2160 if (urbq == NULL) {
2161 endp->queue_size -= 1;
2162 return -ENOMEM;
2163 } else {
2164 list_add_tail(&urbq->urb_more,
2165 &endp->urb_more);
2166 urbq->urb = urb;
2167 }
2168 }
2169 return 0;
2170 } else { /* usb_pipeout(urb->pipe) */
2171 struct u132_addr *addr = &u132->addr[usb_dev->devnum];
2172 int I = MAX_U132_UDEVS;
2173 int i = 0;
2174 while (--I > 0) {
2175 struct u132_udev *udev = &u132->udev[++i];
2176 if (udev->usb_device) {
2177 continue;
2178 } else {
2179 udev->enumeration = 1;
2180 u132->addr[0].address = i;
2181 endp->udev_number = i;
2182 udev->udev_number = i;
2183 udev->usb_addr = usb_dev->devnum;
2184 u132_udev_init_kref(u132, udev);
2185 udev->endp_number_in[usb_endp] =
2186 endp->endp_number;
2187 u132_udev_get_kref(u132, udev);
2188 udev->endp_number_out[usb_endp] =
2189 endp->endp_number;
2190 udev->usb_device = usb_dev;
2191 ((u8 *) (urb->setup_packet))[2] =
2192 addr->address = i;
2193 u132_udev_get_kref(u132, udev);
2194 break;
2195 }
2196 }
2197 if (I == 0) {
2198 dev_err(&u132->platform_dev->dev, "run out of d"
2199 "evice space\n");
2200 return -EINVAL;
2201 }
2202 urb->hcpriv = u132;
2203 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2204 endp->urb_list[ENDP_QUEUE_MASK &
2205 endp->queue_last++] = urb;
2206 } else {
2207 struct u132_urbq *urbq =
2208 kmalloc(sizeof(struct u132_urbq),
2209 GFP_ATOMIC);
2210 if (urbq == NULL) {
2211 endp->queue_size -= 1;
2212 return -ENOMEM;
2213 } else {
2214 list_add_tail(&urbq->urb_more,
2215 &endp->urb_more);
2216 urbq->urb = urb;
2217 }
2218 }
2219 return 0;
2220 }
2221 } else { /*(usb_addr > 0) */
2222 u8 address = u132->addr[usb_addr].address;
2223 struct u132_udev *udev = &u132->udev[address];
2224 urb->hcpriv = u132;
2225 if (udev->enumeration != 2)
2226 udev->enumeration = 2;
2227 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2228 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
2229 urb;
2230 } else {
2231 struct u132_urbq *urbq =
2232 kmalloc(sizeof(struct u132_urbq), GFP_ATOMIC);
2233 if (urbq == NULL) {
2234 endp->queue_size -= 1;
2235 return -ENOMEM;
2236 } else {
2237 list_add_tail(&urbq->urb_more, &endp->urb_more);
2238 urbq->urb = urb;
2239 }
2240 }
2241 return 0;
2242 }
2243}
2244
2245static int u132_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
2246 gfp_t mem_flags)
2247{
2248 struct u132 *u132 = hcd_to_u132(hcd);
2249 if (irqs_disabled()) {
2250 if (__GFP_WAIT & mem_flags) {
2251 printk(KERN_ERR "invalid context for function that migh"
2252 "t sleep\n");
2253 return -EINVAL;
2254 }
2255 }
2256 if (u132->going > 1) {
2257 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2258 , u132->going);
2259 return -ENODEV;
2260 } else if (u132->going > 0) {
2261 dev_err(&u132->platform_dev->dev, "device is being removed "
2262 "urb=%p\n", urb);
2263 return -ESHUTDOWN;
2264 } else {
2265 u8 usb_addr = usb_pipedevice(urb->pipe);
2266 u8 usb_endp = usb_pipeendpoint(urb->pipe);
2267 struct usb_device *usb_dev = urb->dev;
2268 if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) {
2269 u8 address = u132->addr[usb_addr].address;
2270 struct u132_udev *udev = &u132->udev[address];
2271 struct u132_endp *endp = urb->ep->hcpriv;
2272 urb->actual_length = 0;
2273 if (endp) {
2274 unsigned long irqs;
2275 int retval;
2276 spin_lock_irqsave(&endp->queue_lock.slock,
2277 irqs);
2278 retval = usb_hcd_link_urb_to_ep(hcd, urb);
2279 if (retval == 0) {
2280 retval = queue_int_on_old_endpoint(
2281 u132, udev, urb,
2282 usb_dev, endp,
2283 usb_addr, usb_endp,
2284 address);
2285 if (retval)
2286 usb_hcd_unlink_urb_from_ep(
2287 hcd, urb);
2288 }
2289 spin_unlock_irqrestore(&endp->queue_lock.slock,
2290 irqs);
2291 if (retval) {
2292 return retval;
2293 } else {
2294 u132_endp_queue_work(u132, endp,
2295 msecs_to_jiffies(urb->interval))
2296 ;
2297 return 0;
2298 }
2299 } else if (u132->num_endpoints == MAX_U132_ENDPS) {
2300 return -EINVAL;
2301 } else { /*(endp == NULL) */
2302 return create_endpoint_and_queue_int(u132, udev,
2303 urb, usb_dev, usb_addr,
2304 usb_endp, address, mem_flags);
2305 }
2306 } else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
2307 dev_err(&u132->platform_dev->dev, "the hardware does no"
2308 "t support PIPE_ISOCHRONOUS\n");
2309 return -EINVAL;
2310 } else if (usb_pipetype(urb->pipe) == PIPE_BULK) {
2311 u8 address = u132->addr[usb_addr].address;
2312 struct u132_udev *udev = &u132->udev[address];
2313 struct u132_endp *endp = urb->ep->hcpriv;
2314 urb->actual_length = 0;
2315 if (endp) {
2316 unsigned long irqs;
2317 int retval;
2318 spin_lock_irqsave(&endp->queue_lock.slock,
2319 irqs);
2320 retval = usb_hcd_link_urb_to_ep(hcd, urb);
2321 if (retval == 0) {
2322 retval = queue_bulk_on_old_endpoint(
2323 u132, udev, urb,
2324 usb_dev, endp,
2325 usb_addr, usb_endp,
2326 address);
2327 if (retval)
2328 usb_hcd_unlink_urb_from_ep(
2329 hcd, urb);
2330 }
2331 spin_unlock_irqrestore(&endp->queue_lock.slock,
2332 irqs);
2333 if (retval) {
2334 return retval;
2335 } else {
2336 u132_endp_queue_work(u132, endp, 0);
2337 return 0;
2338 }
2339 } else if (u132->num_endpoints == MAX_U132_ENDPS) {
2340 return -EINVAL;
2341 } else
2342 return create_endpoint_and_queue_bulk(u132,
2343 udev, urb, usb_dev, usb_addr,
2344 usb_endp, address, mem_flags);
2345 } else {
2346 struct u132_endp *endp = urb->ep->hcpriv;
2347 u16 urb_size = 8;
2348 u8 *b = urb->setup_packet;
2349 int i = 0;
2350 char data[30 * 3 + 4];
2351 char *d = data;
2352 int m = (sizeof(data) - 1) / 3;
2353 int l = 0;
2354 data[0] = 0;
2355 while (urb_size-- > 0) {
2356 if (i > m) {
2357 } else if (i++ < m) {
2358 int w = sprintf(d, " %02X", *b++);
2359 d += w;
2360 l += w;
2361 } else
2362 d += sprintf(d, " ..");
2363 }
2364 if (endp) {
2365 unsigned long irqs;
2366 int retval;
2367 spin_lock_irqsave(&endp->queue_lock.slock,
2368 irqs);
2369 retval = usb_hcd_link_urb_to_ep(hcd, urb);
2370 if (retval == 0) {
2371 retval = queue_control_on_old_endpoint(
2372 u132, urb, usb_dev,
2373 endp, usb_addr,
2374 usb_endp);
2375 if (retval)
2376 usb_hcd_unlink_urb_from_ep(
2377 hcd, urb);
2378 }
2379 spin_unlock_irqrestore(&endp->queue_lock.slock,
2380 irqs);
2381 if (retval) {
2382 return retval;
2383 } else {
2384 u132_endp_queue_work(u132, endp, 0);
2385 return 0;
2386 }
2387 } else if (u132->num_endpoints == MAX_U132_ENDPS) {
2388 return -EINVAL;
2389 } else
2390 return create_endpoint_and_queue_control(u132,
2391 urb, usb_dev, usb_addr, usb_endp,
2392 mem_flags);
2393 }
2394 }
2395}
2396
2397static int dequeue_from_overflow_chain(struct u132 *u132,
2398 struct u132_endp *endp, struct urb *urb)
2399{
2400 struct list_head *scan;
2401 struct list_head *head = &endp->urb_more;
2402 list_for_each(scan, head) {
2403 struct u132_urbq *urbq = list_entry(scan, struct u132_urbq,
2404 urb_more);
2405 if (urbq->urb == urb) {
2406 struct usb_hcd *hcd = u132_to_hcd(u132);
2407 list_del(scan);
2408 endp->queue_size -= 1;
2409 urb->error_count = 0;
2410 usb_hcd_giveback_urb(hcd, urb, 0);
2411 return 0;
2412 } else
2413 continue;
2414 }
2415 dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]=%p ring"
2416 "[%d] %c%c usb_endp=%d usb_addr=%d size=%d next=%04X last=%04X"
2417 "\n", urb, endp->endp_number, endp, endp->ring->number,
2418 endp->input ? 'I' : ' ', endp->output ? 'O' : ' ',
2419 endp->usb_endp, endp->usb_addr, endp->queue_size,
2420 endp->queue_next, endp->queue_last);
2421 return -EINVAL;
2422}
2423
2424static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp,
2425 struct urb *urb, int status)
2426{
2427 unsigned long irqs;
2428 int rc;
2429
2430 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
2431 rc = usb_hcd_check_unlink_urb(u132_to_hcd(u132), urb, status);
2432 if (rc) {
2433 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2434 return rc;
2435 }
2436 if (endp->queue_size == 0) {
2437 dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]"
2438 "=%p ring[%d] %c%c usb_endp=%d usb_addr=%d\n", urb,
2439 endp->endp_number, endp, endp->ring->number,
2440 endp->input ? 'I' : ' ', endp->output ? 'O' : ' ',
2441 endp->usb_endp, endp->usb_addr);
2442 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2443 return -EINVAL;
2444 }
2445 if (urb == endp->urb_list[ENDP_QUEUE_MASK & endp->queue_next]) {
2446 if (endp->active) {
2447 endp->dequeueing = 1;
2448 endp->edset_flush = 1;
2449 u132_endp_queue_work(u132, endp, 0);
2450 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2451 return 0;
2452 } else {
2453 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2454 u132_hcd_abandon_urb(u132, endp, urb, status);
2455 return 0;
2456 }
2457 } else {
2458 u16 queue_list = 0;
2459 u16 queue_size = endp->queue_size;
2460 u16 queue_scan = endp->queue_next;
2461 struct urb **urb_slot = NULL;
2462 while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) {
2463 if (urb == endp->urb_list[ENDP_QUEUE_MASK &
2464 ++queue_scan]) {
2465 urb_slot = &endp->urb_list[ENDP_QUEUE_MASK &
2466 queue_scan];
2467 break;
2468 } else
2469 continue;
2470 }
2471 while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) {
2472 *urb_slot = endp->urb_list[ENDP_QUEUE_MASK &
2473 ++queue_scan];
2474 urb_slot = &endp->urb_list[ENDP_QUEUE_MASK &
2475 queue_scan];
2476 }
2477 if (urb_slot) {
2478 struct usb_hcd *hcd = u132_to_hcd(u132);
2479
2480 usb_hcd_unlink_urb_from_ep(hcd, urb);
2481 endp->queue_size -= 1;
2482 if (list_empty(&endp->urb_more)) {
2483 spin_unlock_irqrestore(&endp->queue_lock.slock,
2484 irqs);
2485 } else {
2486 struct list_head *next = endp->urb_more.next;
2487 struct u132_urbq *urbq = list_entry(next,
2488 struct u132_urbq, urb_more);
2489 list_del(next);
2490 *urb_slot = urbq->urb;
2491 spin_unlock_irqrestore(&endp->queue_lock.slock,
2492 irqs);
2493 kfree(urbq);
2494 } urb->error_count = 0;
2495 usb_hcd_giveback_urb(hcd, urb, status);
2496 return 0;
2497 } else if (list_empty(&endp->urb_more)) {
2498 dev_err(&u132->platform_dev->dev, "urb=%p not found in "
2499 "endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr"
2500 "=%d size=%d next=%04X last=%04X\n", urb,
2501 endp->endp_number, endp, endp->ring->number,
2502 endp->input ? 'I' : ' ',
2503 endp->output ? 'O' : ' ', endp->usb_endp,
2504 endp->usb_addr, endp->queue_size,
2505 endp->queue_next, endp->queue_last);
2506 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2507 return -EINVAL;
2508 } else {
2509 int retval;
2510
2511 usb_hcd_unlink_urb_from_ep(u132_to_hcd(u132), urb);
2512 retval = dequeue_from_overflow_chain(u132, endp,
2513 urb);
2514 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2515 return retval;
2516 }
2517 }
2518}
2519
2520static int u132_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
2521{
2522 struct u132 *u132 = hcd_to_u132(hcd);
2523 if (u132->going > 2) {
2524 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2525 , u132->going);
2526 return -ENODEV;
2527 } else {
2528 u8 usb_addr = usb_pipedevice(urb->pipe);
2529 u8 usb_endp = usb_pipeendpoint(urb->pipe);
2530 u8 address = u132->addr[usb_addr].address;
2531 struct u132_udev *udev = &u132->udev[address];
2532 if (usb_pipein(urb->pipe)) {
2533 u8 endp_number = udev->endp_number_in[usb_endp];
2534 struct u132_endp *endp = u132->endp[endp_number - 1];
2535 return u132_endp_urb_dequeue(u132, endp, urb, status);
2536 } else {
2537 u8 endp_number = udev->endp_number_out[usb_endp];
2538 struct u132_endp *endp = u132->endp[endp_number - 1];
2539 return u132_endp_urb_dequeue(u132, endp, urb, status);
2540 }
2541 }
2542}
2543
2544static void u132_endpoint_disable(struct usb_hcd *hcd,
2545 struct usb_host_endpoint *hep)
2546{
2547 struct u132 *u132 = hcd_to_u132(hcd);
2548 if (u132->going > 2) {
2549 dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p hep=%p"
2550 ") has been removed %d\n", u132, hcd, hep,
2551 u132->going);
2552 } else {
2553 struct u132_endp *endp = hep->hcpriv;
2554 if (endp)
2555 u132_endp_put_kref(u132, endp);
2556 }
2557}
2558
2559static int u132_get_frame(struct usb_hcd *hcd)
2560{
2561 struct u132 *u132 = hcd_to_u132(hcd);
2562 if (u132->going > 1) {
2563 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2564 , u132->going);
2565 return -ENODEV;
2566 } else if (u132->going > 0) {
2567 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2568 return -ESHUTDOWN;
2569 } else {
2570 int frame = 0;
2571 dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n");
2572 msleep(100);
2573 return frame;
2574 }
2575}
2576
2577static int u132_roothub_descriptor(struct u132 *u132,
2578 struct usb_hub_descriptor *desc)
2579{
2580 int retval;
2581 u16 temp;
2582 u32 rh_a = -1;
2583 u32 rh_b = -1;
2584 retval = u132_read_pcimem(u132, roothub.a, &rh_a);
2585 if (retval)
2586 return retval;
2587 desc->bDescriptorType = 0x29;
2588 desc->bPwrOn2PwrGood = (rh_a & RH_A_POTPGT) >> 24;
2589 desc->bHubContrCurrent = 0;
2590 desc->bNbrPorts = u132->num_ports;
2591 temp = 1 + (u132->num_ports / 8);
2592 desc->bDescLength = 7 + 2 * temp;
2593 temp = 0;
2594 if (rh_a & RH_A_NPS)
2595 temp |= 0x0002;
2596 if (rh_a & RH_A_PSM)
2597 temp |= 0x0001;
2598 if (rh_a & RH_A_NOCP)
2599 temp |= 0x0010;
2600 else if (rh_a & RH_A_OCPM)
2601 temp |= 0x0008;
2602 desc->wHubCharacteristics = cpu_to_le16(temp);
2603 retval = u132_read_pcimem(u132, roothub.b, &rh_b);
2604 if (retval)
2605 return retval;
2606 memset(desc->u.hs.DeviceRemovable, 0xff,
2607 sizeof(desc->u.hs.DeviceRemovable));
2608 desc->u.hs.DeviceRemovable[0] = rh_b & RH_B_DR;
2609 if (u132->num_ports > 7) {
2610 desc->u.hs.DeviceRemovable[1] = (rh_b & RH_B_DR) >> 8;
2611 desc->u.hs.DeviceRemovable[2] = 0xff;
2612 } else
2613 desc->u.hs.DeviceRemovable[1] = 0xff;
2614 return 0;
2615}
2616
2617static int u132_roothub_status(struct u132 *u132, __le32 *desc)
2618{
2619 u32 rh_status = -1;
2620 int ret_status = u132_read_pcimem(u132, roothub.status, &rh_status);
2621 *desc = cpu_to_le32(rh_status);
2622 return ret_status;
2623}
2624
2625static int u132_roothub_portstatus(struct u132 *u132, __le32 *desc, u16 wIndex)
2626{
2627 if (wIndex == 0 || wIndex > u132->num_ports) {
2628 return -EINVAL;
2629 } else {
2630 int port = wIndex - 1;
2631 u32 rh_portstatus = -1;
2632 int ret_portstatus = u132_read_pcimem(u132,
2633 roothub.portstatus[port], &rh_portstatus);
2634 *desc = cpu_to_le32(rh_portstatus);
2635 if (*(u16 *) (desc + 2)) {
2636 dev_info(&u132->platform_dev->dev, "Port %d Status Chan"
2637 "ge = %08X\n", port, *desc);
2638 }
2639 return ret_portstatus;
2640 }
2641}
2642
2643
2644/* this timer value might be vendor-specific ... */
2645#define PORT_RESET_HW_MSEC 10
2646#define PORT_RESET_MSEC 10
2647/* wrap-aware logic morphed from <linux/jiffies.h> */
2648#define tick_before(t1, t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0)
2649static int u132_roothub_portreset(struct u132 *u132, int port_index)
2650{
2651 int retval;
2652 u32 fmnumber;
2653 u16 now;
2654 u16 reset_done;
2655 retval = u132_read_pcimem(u132, fmnumber, &fmnumber);
2656 if (retval)
2657 return retval;
2658 now = fmnumber;
2659 reset_done = now + PORT_RESET_MSEC;
2660 do {
2661 u32 portstat;
2662 do {
2663 retval = u132_read_pcimem(u132,
2664 roothub.portstatus[port_index], &portstat);
2665 if (retval)
2666 return retval;
2667 if (RH_PS_PRS & portstat)
2668 continue;
2669 else
2670 break;
2671 } while (tick_before(now, reset_done));
2672 if (RH_PS_PRS & portstat)
2673 return -ENODEV;
2674 if (RH_PS_CCS & portstat) {
2675 if (RH_PS_PRSC & portstat) {
2676 retval = u132_write_pcimem(u132,
2677 roothub.portstatus[port_index],
2678 RH_PS_PRSC);
2679 if (retval)
2680 return retval;
2681 }
2682 } else
2683 break; /* start the next reset,
2684 sleep till it's probably done */
2685 retval = u132_write_pcimem(u132, roothub.portstatus[port_index],
2686 RH_PS_PRS);
2687 if (retval)
2688 return retval;
2689 msleep(PORT_RESET_HW_MSEC);
2690 retval = u132_read_pcimem(u132, fmnumber, &fmnumber);
2691 if (retval)
2692 return retval;
2693 now = fmnumber;
2694 } while (tick_before(now, reset_done));
2695 return 0;
2696}
2697
2698static int u132_roothub_setportfeature(struct u132 *u132, u16 wValue,
2699 u16 wIndex)
2700{
2701 if (wIndex == 0 || wIndex > u132->num_ports) {
2702 return -EINVAL;
2703 } else {
2704 int retval;
2705 int port_index = wIndex - 1;
2706 struct u132_port *port = &u132->port[port_index];
2707 port->Status &= ~(1 << wValue);
2708 switch (wValue) {
2709 case USB_PORT_FEAT_SUSPEND:
2710 retval = u132_write_pcimem(u132,
2711 roothub.portstatus[port_index], RH_PS_PSS);
2712 if (retval)
2713 return retval;
2714 return 0;
2715 case USB_PORT_FEAT_POWER:
2716 retval = u132_write_pcimem(u132,
2717 roothub.portstatus[port_index], RH_PS_PPS);
2718 if (retval)
2719 return retval;
2720 return 0;
2721 case USB_PORT_FEAT_RESET:
2722 retval = u132_roothub_portreset(u132, port_index);
2723 if (retval)
2724 return retval;
2725 return 0;
2726 default:
2727 return -EPIPE;
2728 }
2729 }
2730}
2731
2732static int u132_roothub_clearportfeature(struct u132 *u132, u16 wValue,
2733 u16 wIndex)
2734{
2735 if (wIndex == 0 || wIndex > u132->num_ports) {
2736 return -EINVAL;
2737 } else {
2738 int port_index = wIndex - 1;
2739 u32 temp;
2740 int retval;
2741 struct u132_port *port = &u132->port[port_index];
2742 port->Status &= ~(1 << wValue);
2743 switch (wValue) {
2744 case USB_PORT_FEAT_ENABLE:
2745 temp = RH_PS_CCS;
2746 break;
2747 case USB_PORT_FEAT_C_ENABLE:
2748 temp = RH_PS_PESC;
2749 break;
2750 case USB_PORT_FEAT_SUSPEND:
2751 temp = RH_PS_POCI;
2752 if ((u132->hc_control & OHCI_CTRL_HCFS)
2753 != OHCI_USB_OPER) {
2754 dev_err(&u132->platform_dev->dev, "TODO resume_"
2755 "root_hub\n");
2756 }
2757 break;
2758 case USB_PORT_FEAT_C_SUSPEND:
2759 temp = RH_PS_PSSC;
2760 break;
2761 case USB_PORT_FEAT_POWER:
2762 temp = RH_PS_LSDA;
2763 break;
2764 case USB_PORT_FEAT_C_CONNECTION:
2765 temp = RH_PS_CSC;
2766 break;
2767 case USB_PORT_FEAT_C_OVER_CURRENT:
2768 temp = RH_PS_OCIC;
2769 break;
2770 case USB_PORT_FEAT_C_RESET:
2771 temp = RH_PS_PRSC;
2772 break;
2773 default:
2774 return -EPIPE;
2775 }
2776 retval = u132_write_pcimem(u132, roothub.portstatus[port_index],
2777 temp);
2778 if (retval)
2779 return retval;
2780 return 0;
2781 }
2782}
2783
2784
2785/* the virtual root hub timer IRQ checks for hub status*/
2786static int u132_hub_status_data(struct usb_hcd *hcd, char *buf)
2787{
2788 struct u132 *u132 = hcd_to_u132(hcd);
2789 if (u132->going > 1) {
2790 dev_err(&u132->platform_dev->dev, "device hcd=%p has been remov"
2791 "ed %d\n", hcd, u132->going);
2792 return -ENODEV;
2793 } else if (u132->going > 0) {
2794 dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov"
2795 "ed\n", hcd);
2796 return -ESHUTDOWN;
2797 } else {
2798 int i, changed = 0, length = 1;
2799 if (u132->flags & OHCI_QUIRK_AMD756) {
2800 if ((u132->hc_roothub_a & RH_A_NDP) > MAX_ROOT_PORTS) {
2801 dev_err(&u132->platform_dev->dev, "bogus NDP, r"
2802 "ereads as NDP=%d\n",
2803 u132->hc_roothub_a & RH_A_NDP);
2804 goto done;
2805 }
2806 }
2807 if (u132->hc_roothub_status & (RH_HS_LPSC | RH_HS_OCIC))
2808 buf[0] = changed = 1;
2809 else
2810 buf[0] = 0;
2811 if (u132->num_ports > 7) {
2812 buf[1] = 0;
2813 length++;
2814 }
2815 for (i = 0; i < u132->num_ports; i++) {
2816 if (u132->hc_roothub_portstatus[i] & (RH_PS_CSC |
2817 RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC |
2818 RH_PS_PRSC)) {
2819 changed = 1;
2820 if (i < 7)
2821 buf[0] |= 1 << (i + 1);
2822 else
2823 buf[1] |= 1 << (i - 7);
2824 continue;
2825 }
2826 if (!(u132->hc_roothub_portstatus[i] & RH_PS_CCS))
2827 continue;
2828
2829 if ((u132->hc_roothub_portstatus[i] & RH_PS_PSS))
2830 continue;
2831 }
2832done:
2833 return changed ? length : 0;
2834 }
2835}
2836
2837static int u132_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
2838 u16 wIndex, char *buf, u16 wLength)
2839{
2840 struct u132 *u132 = hcd_to_u132(hcd);
2841 if (u132->going > 1) {
2842 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2843 , u132->going);
2844 return -ENODEV;
2845 } else if (u132->going > 0) {
2846 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2847 return -ESHUTDOWN;
2848 } else {
2849 int retval = 0;
2850 mutex_lock(&u132->sw_lock);
2851 switch (typeReq) {
2852 case ClearHubFeature:
2853 switch (wValue) {
2854 case C_HUB_OVER_CURRENT:
2855 case C_HUB_LOCAL_POWER:
2856 break;
2857 default:
2858 goto stall;
2859 }
2860 break;
2861 case SetHubFeature:
2862 switch (wValue) {
2863 case C_HUB_OVER_CURRENT:
2864 case C_HUB_LOCAL_POWER:
2865 break;
2866 default:
2867 goto stall;
2868 }
2869 break;
2870 case ClearPortFeature:{
2871 retval = u132_roothub_clearportfeature(u132,
2872 wValue, wIndex);
2873 if (retval)
2874 goto error;
2875 break;
2876 }
2877 case GetHubDescriptor:{
2878 retval = u132_roothub_descriptor(u132,
2879 (struct usb_hub_descriptor *)buf);
2880 if (retval)
2881 goto error;
2882 break;
2883 }
2884 case GetHubStatus:{
2885 retval = u132_roothub_status(u132,
2886 (__le32 *) buf);
2887 if (retval)
2888 goto error;
2889 break;
2890 }
2891 case GetPortStatus:{
2892 retval = u132_roothub_portstatus(u132,
2893 (__le32 *) buf, wIndex);
2894 if (retval)
2895 goto error;
2896 break;
2897 }
2898 case SetPortFeature:{
2899 retval = u132_roothub_setportfeature(u132,
2900 wValue, wIndex);
2901 if (retval)
2902 goto error;
2903 break;
2904 }
2905 default:
2906 goto stall;
2907 error:
2908 u132_disable(u132);
2909 u132->going = 1;
2910 break;
2911 stall:
2912 retval = -EPIPE;
2913 break;
2914 }
2915 mutex_unlock(&u132->sw_lock);
2916 return retval;
2917 }
2918}
2919
2920static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num)
2921{
2922 struct u132 *u132 = hcd_to_u132(hcd);
2923 if (u132->going > 1) {
2924 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2925 , u132->going);
2926 return -ENODEV;
2927 } else if (u132->going > 0) {
2928 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2929 return -ESHUTDOWN;
2930 } else
2931 return 0;
2932}
2933
2934
2935#ifdef CONFIG_PM
2936static int u132_bus_suspend(struct usb_hcd *hcd)
2937{
2938 struct u132 *u132 = hcd_to_u132(hcd);
2939 if (u132->going > 1) {
2940 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2941 , u132->going);
2942 return -ENODEV;
2943 } else if (u132->going > 0) {
2944 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2945 return -ESHUTDOWN;
2946 } else
2947 return 0;
2948}
2949
2950static int u132_bus_resume(struct usb_hcd *hcd)
2951{
2952 struct u132 *u132 = hcd_to_u132(hcd);
2953 if (u132->going > 1) {
2954 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2955 , u132->going);
2956 return -ENODEV;
2957 } else if (u132->going > 0) {
2958 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2959 return -ESHUTDOWN;
2960 } else
2961 return 0;
2962}
2963
2964#else
2965#define u132_bus_suspend NULL
2966#define u132_bus_resume NULL
2967#endif
2968static struct hc_driver u132_hc_driver = {
2969 .description = hcd_name,
2970 .hcd_priv_size = sizeof(struct u132),
2971 .irq = NULL,
2972 .flags = HCD_USB11 | HCD_MEMORY,
2973 .reset = u132_hcd_reset,
2974 .start = u132_hcd_start,
2975 .stop = u132_hcd_stop,
2976 .urb_enqueue = u132_urb_enqueue,
2977 .urb_dequeue = u132_urb_dequeue,
2978 .endpoint_disable = u132_endpoint_disable,
2979 .get_frame_number = u132_get_frame,
2980 .hub_status_data = u132_hub_status_data,
2981 .hub_control = u132_hub_control,
2982 .bus_suspend = u132_bus_suspend,
2983 .bus_resume = u132_bus_resume,
2984 .start_port_reset = u132_start_port_reset,
2985};
2986
2987/*
2988* This function may be called by the USB core whilst the "usb_all_devices_rwsem"
2989* is held for writing, thus this module must not call usb_remove_hcd()
2990* synchronously - but instead should immediately stop activity to the
2991* device and asynchronously call usb_remove_hcd()
2992*/
2993static int __devexit u132_remove(struct platform_device *pdev)
2994{
2995 struct usb_hcd *hcd = platform_get_drvdata(pdev);
2996 if (hcd) {
2997 struct u132 *u132 = hcd_to_u132(hcd);
2998 if (u132->going++ > 1) {
2999 dev_err(&u132->platform_dev->dev, "already being remove"
3000 "d\n");
3001 return -ENODEV;
3002 } else {
3003 int rings = MAX_U132_RINGS;
3004 int endps = MAX_U132_ENDPS;
3005 dev_err(&u132->platform_dev->dev, "removing device u132"
3006 ".%d\n", u132->sequence_num);
3007 msleep(100);
3008 mutex_lock(&u132->sw_lock);
3009 u132_monitor_cancel_work(u132);
3010 while (rings-- > 0) {
3011 struct u132_ring *ring = &u132->ring[rings];
3012 u132_ring_cancel_work(u132, ring);
3013 } while (endps-- > 0) {
3014 struct u132_endp *endp = u132->endp[endps];
3015 if (endp)
3016 u132_endp_cancel_work(u132, endp);
3017 }
3018 u132->going += 1;
3019 printk(KERN_INFO "removing device u132.%d\n",
3020 u132->sequence_num);
3021 mutex_unlock(&u132->sw_lock);
3022 usb_remove_hcd(hcd);
3023 u132_u132_put_kref(u132);
3024 return 0;
3025 }
3026 } else
3027 return 0;
3028}
3029
3030static void u132_initialise(struct u132 *u132, struct platform_device *pdev)
3031{
3032 int rings = MAX_U132_RINGS;
3033 int ports = MAX_U132_PORTS;
3034 int addrs = MAX_U132_ADDRS;
3035 int udevs = MAX_U132_UDEVS;
3036 int endps = MAX_U132_ENDPS;
3037 u132->board = pdev->dev.platform_data;
3038 u132->platform_dev = pdev;
3039 u132->power = 0;
3040 u132->reset = 0;
3041 mutex_init(&u132->sw_lock);
3042 mutex_init(&u132->scheduler_lock);
3043 while (rings-- > 0) {
3044 struct u132_ring *ring = &u132->ring[rings];
3045 ring->u132 = u132;
3046 ring->number = rings + 1;
3047 ring->length = 0;
3048 ring->curr_endp = NULL;
3049 INIT_DELAYED_WORK(&ring->scheduler,
3050 u132_hcd_ring_work_scheduler);
3051 }
3052 mutex_lock(&u132->sw_lock);
3053 INIT_DELAYED_WORK(&u132->monitor, u132_hcd_monitor_work);
3054 while (ports-- > 0) {
3055 struct u132_port *port = &u132->port[ports];
3056 port->u132 = u132;
3057 port->reset = 0;
3058 port->enable = 0;
3059 port->power = 0;
3060 port->Status = 0;
3061 }
3062 while (addrs-- > 0) {
3063 struct u132_addr *addr = &u132->addr[addrs];
3064 addr->address = 0;
3065 }
3066 while (udevs-- > 0) {
3067 struct u132_udev *udev = &u132->udev[udevs];
3068 int i = ARRAY_SIZE(udev->endp_number_in);
3069 int o = ARRAY_SIZE(udev->endp_number_out);
3070 udev->usb_device = NULL;
3071 udev->udev_number = 0;
3072 udev->usb_addr = 0;
3073 udev->portnumber = 0;
3074 while (i-- > 0)
3075 udev->endp_number_in[i] = 0;
3076
3077 while (o-- > 0)
3078 udev->endp_number_out[o] = 0;
3079
3080 }
3081 while (endps-- > 0)
3082 u132->endp[endps] = NULL;
3083
3084 mutex_unlock(&u132->sw_lock);
3085}
3086
3087static int __devinit u132_probe(struct platform_device *pdev)
3088{
3089 struct usb_hcd *hcd;
3090 int retval;
3091 u32 control;
3092 u32 rh_a = -1;
3093 u32 num_ports;
3094
3095 msleep(100);
3096 if (u132_exiting > 0)
3097 return -ENODEV;
3098
3099 retval = ftdi_write_pcimem(pdev, intrdisable, OHCI_INTR_MIE);
3100 if (retval)
3101 return retval;
3102 retval = ftdi_read_pcimem(pdev, control, &control);
3103 if (retval)
3104 return retval;
3105 retval = ftdi_read_pcimem(pdev, roothub.a, &rh_a);
3106 if (retval)
3107 return retval;
3108 num_ports = rh_a & RH_A_NDP; /* refuse to confuse usbcore */
3109 if (pdev->dev.dma_mask)
3110 return -EINVAL;
3111
3112 hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, dev_name(&pdev->dev));
3113 if (!hcd) {
3114 printk(KERN_ERR "failed to create the usb hcd struct for U132\n"
3115 );
3116 ftdi_elan_gone_away(pdev);
3117 return -ENOMEM;
3118 } else {
3119 struct u132 *u132 = hcd_to_u132(hcd);
3120 retval = 0;
3121 hcd->rsrc_start = 0;
3122 mutex_lock(&u132_module_lock);
3123 list_add_tail(&u132->u132_list, &u132_static_list);
3124 u132->sequence_num = ++u132_instances;
3125 mutex_unlock(&u132_module_lock);
3126 u132_u132_init_kref(u132);
3127 u132_initialise(u132, pdev);
3128 hcd->product_desc = "ELAN U132 Host Controller";
3129 retval = usb_add_hcd(hcd, 0, 0);
3130 if (retval != 0) {
3131 dev_err(&u132->platform_dev->dev, "init error %d\n",
3132 retval);
3133 u132_u132_put_kref(u132);
3134 return retval;
3135 } else {
3136 u132_monitor_queue_work(u132, 100);
3137 return 0;
3138 }
3139 }
3140}
3141
3142
3143#ifdef CONFIG_PM
3144/* for this device there's no useful distinction between the controller
3145* and its root hub, except that the root hub only gets direct PM calls
3146* when CONFIG_USB_SUSPEND is enabled.
3147*/
3148static int u132_suspend(struct platform_device *pdev, pm_message_t state)
3149{
3150 struct usb_hcd *hcd = platform_get_drvdata(pdev);
3151 struct u132 *u132 = hcd_to_u132(hcd);
3152 if (u132->going > 1) {
3153 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
3154 , u132->going);
3155 return -ENODEV;
3156 } else if (u132->going > 0) {
3157 dev_err(&u132->platform_dev->dev, "device is being removed\n");
3158 return -ESHUTDOWN;
3159 } else {
3160 int retval = 0, ports;
3161
3162 switch (state.event) {
3163 case PM_EVENT_FREEZE:
3164 retval = u132_bus_suspend(hcd);
3165 break;
3166 case PM_EVENT_SUSPEND:
3167 case PM_EVENT_HIBERNATE:
3168 ports = MAX_U132_PORTS;
3169 while (ports-- > 0) {
3170 port_power(u132, ports, 0);
3171 }
3172 break;
3173 }
3174 return retval;
3175 }
3176}
3177
3178static int u132_resume(struct platform_device *pdev)
3179{
3180 struct usb_hcd *hcd = platform_get_drvdata(pdev);
3181 struct u132 *u132 = hcd_to_u132(hcd);
3182 if (u132->going > 1) {
3183 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
3184 , u132->going);
3185 return -ENODEV;
3186 } else if (u132->going > 0) {
3187 dev_err(&u132->platform_dev->dev, "device is being removed\n");
3188 return -ESHUTDOWN;
3189 } else {
3190 int retval = 0;
3191 if (!u132->port[0].power) {
3192 int ports = MAX_U132_PORTS;
3193 while (ports-- > 0) {
3194 port_power(u132, ports, 1);
3195 }
3196 retval = 0;
3197 } else {
3198 retval = u132_bus_resume(hcd);
3199 }
3200 return retval;
3201 }
3202}
3203
3204#else
3205#define u132_suspend NULL
3206#define u132_resume NULL
3207#endif
3208/*
3209* this driver is loaded explicitly by ftdi_u132
3210*
3211* the platform_driver struct is static because it is per type of module
3212*/
3213static struct platform_driver u132_platform_driver = {
3214 .probe = u132_probe,
3215 .remove = __devexit_p(u132_remove),
3216 .suspend = u132_suspend,
3217 .resume = u132_resume,
3218 .driver = {
3219 .name = (char *)hcd_name,
3220 .owner = THIS_MODULE,
3221 },
3222};
3223static int __init u132_hcd_init(void)
3224{
3225 int retval;
3226 INIT_LIST_HEAD(&u132_static_list);
3227 u132_instances = 0;
3228 u132_exiting = 0;
3229 mutex_init(&u132_module_lock);
3230 if (usb_disabled())
3231 return -ENODEV;
3232 printk(KERN_INFO "driver %s\n", hcd_name);
3233 workqueue = create_singlethread_workqueue("u132");
3234 retval = platform_driver_register(&u132_platform_driver);
3235 return retval;
3236}
3237
3238
3239module_init(u132_hcd_init);
3240static void __exit u132_hcd_exit(void)
3241{
3242 struct u132 *u132;
3243 struct u132 *temp;
3244 mutex_lock(&u132_module_lock);
3245 u132_exiting += 1;
3246 mutex_unlock(&u132_module_lock);
3247 list_for_each_entry_safe(u132, temp, &u132_static_list, u132_list) {
3248 platform_device_unregister(u132->platform_dev);
3249 }
3250 platform_driver_unregister(&u132_platform_driver);
3251 printk(KERN_INFO "u132-hcd driver deregistered\n");
3252 wait_event(u132_hcd_wait, u132_instances == 0);
3253 flush_workqueue(workqueue);
3254 destroy_workqueue(workqueue);
3255}
3256
3257
3258module_exit(u132_hcd_exit);
3259MODULE_LICENSE("GPL");
3260MODULE_ALIAS("platform:u132_hcd");