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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 = true;
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 *endp, *last_endp = ring->curr_endp;
1313 unsigned long wakeup = 0;
1314 list_for_each_entry(endp, &last_endp->endp_ring, endp_ring) {
1315 if (endp->queue_next == endp->queue_last) {
1316 } else if ((endp->delayed == 0)
1317 || time_after_eq(jiffies, endp->jiffies)) {
1318 ring->curr_endp = endp;
1319 u132_endp_cancel_work(u132, last_endp);
1320 u132_endp_queue_work(u132, last_endp, 0);
1321 mutex_unlock(&u132->scheduler_lock);
1322 u132_ring_put_kref(u132, ring);
1323 return;
1324 } else {
1325 unsigned long delta = endp->jiffies - jiffies;
1326 if (delta > wakeup)
1327 wakeup = delta;
1328 }
1329 }
1330 if (last_endp->queue_next == last_endp->queue_last) {
1331 } else if ((last_endp->delayed == 0) || time_after_eq(jiffies,
1332 last_endp->jiffies)) {
1333 u132_endp_cancel_work(u132, last_endp);
1334 u132_endp_queue_work(u132, last_endp, 0);
1335 mutex_unlock(&u132->scheduler_lock);
1336 u132_ring_put_kref(u132, ring);
1337 return;
1338 } else {
1339 unsigned long delta = last_endp->jiffies - jiffies;
1340 if (delta > wakeup)
1341 wakeup = delta;
1342 }
1343 if (wakeup > 0) {
1344 u132_ring_requeue_work(u132, ring, wakeup);
1345 mutex_unlock(&u132->scheduler_lock);
1346 return;
1347 } else {
1348 mutex_unlock(&u132->scheduler_lock);
1349 u132_ring_put_kref(u132, ring);
1350 return;
1351 }
1352 } else {
1353 mutex_unlock(&u132->scheduler_lock);
1354 u132_ring_put_kref(u132, ring);
1355 return;
1356 }
1357}
1358
1359static void u132_hcd_endp_work_scheduler(struct work_struct *work)
1360{
1361 struct u132_ring *ring;
1362 struct u132_endp *endp =
1363 container_of(work, struct u132_endp, scheduler.work);
1364 struct u132 *u132 = endp->u132;
1365 mutex_lock(&u132->scheduler_lock);
1366 ring = endp->ring;
1367 if (endp->edset_flush) {
1368 endp->edset_flush = 0;
1369 if (endp->dequeueing)
1370 usb_ftdi_elan_edset_flush(u132->platform_dev,
1371 ring->number, endp);
1372 mutex_unlock(&u132->scheduler_lock);
1373 u132_endp_put_kref(u132, endp);
1374 return;
1375 } else if (endp->active) {
1376 mutex_unlock(&u132->scheduler_lock);
1377 u132_endp_put_kref(u132, endp);
1378 return;
1379 } else if (ring->in_use) {
1380 mutex_unlock(&u132->scheduler_lock);
1381 u132_endp_put_kref(u132, endp);
1382 return;
1383 } else if (endp->queue_next == endp->queue_last) {
1384 mutex_unlock(&u132->scheduler_lock);
1385 u132_endp_put_kref(u132, endp);
1386 return;
1387 } else if (endp->pipetype == PIPE_INTERRUPT) {
1388 u8 address = u132->addr[endp->usb_addr].address;
1389 if (ring->in_use) {
1390 mutex_unlock(&u132->scheduler_lock);
1391 u132_endp_put_kref(u132, endp);
1392 return;
1393 } else {
1394 int retval;
1395 struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1396 endp->queue_next];
1397 endp->active = 1;
1398 ring->curr_endp = endp;
1399 ring->in_use = 1;
1400 mutex_unlock(&u132->scheduler_lock);
1401 retval = edset_single(u132, ring, endp, urb, address,
1402 endp->toggle_bits, u132_hcd_interrupt_recv);
1403 if (retval != 0)
1404 u132_hcd_giveback_urb(u132, endp, urb, retval);
1405 return;
1406 }
1407 } else if (endp->pipetype == PIPE_CONTROL) {
1408 u8 address = u132->addr[endp->usb_addr].address;
1409 if (ring->in_use) {
1410 mutex_unlock(&u132->scheduler_lock);
1411 u132_endp_put_kref(u132, endp);
1412 return;
1413 } else if (address == 0) {
1414 int retval;
1415 struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1416 endp->queue_next];
1417 endp->active = 1;
1418 ring->curr_endp = endp;
1419 ring->in_use = 1;
1420 mutex_unlock(&u132->scheduler_lock);
1421 retval = edset_setup(u132, ring, endp, urb, address,
1422 0x2, u132_hcd_initial_setup_sent);
1423 if (retval != 0)
1424 u132_hcd_giveback_urb(u132, endp, urb, retval);
1425 return;
1426 } else if (endp->usb_addr == 0) {
1427 int retval;
1428 struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1429 endp->queue_next];
1430 endp->active = 1;
1431 ring->curr_endp = endp;
1432 ring->in_use = 1;
1433 mutex_unlock(&u132->scheduler_lock);
1434 retval = edset_setup(u132, ring, endp, urb, 0, 0x2,
1435 u132_hcd_enumeration_address_sent);
1436 if (retval != 0)
1437 u132_hcd_giveback_urb(u132, endp, urb, retval);
1438 return;
1439 } else {
1440 int retval;
1441 struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1442 endp->queue_next];
1443 address = u132->addr[endp->usb_addr].address;
1444 endp->active = 1;
1445 ring->curr_endp = endp;
1446 ring->in_use = 1;
1447 mutex_unlock(&u132->scheduler_lock);
1448 retval = edset_setup(u132, ring, endp, urb, address,
1449 0x2, u132_hcd_configure_setup_sent);
1450 if (retval != 0)
1451 u132_hcd_giveback_urb(u132, endp, urb, retval);
1452 return;
1453 }
1454 } else {
1455 if (endp->input) {
1456 u8 address = u132->addr[endp->usb_addr].address;
1457 if (ring->in_use) {
1458 mutex_unlock(&u132->scheduler_lock);
1459 u132_endp_put_kref(u132, endp);
1460 return;
1461 } else {
1462 int retval;
1463 struct urb *urb = endp->urb_list[
1464 ENDP_QUEUE_MASK & endp->queue_next];
1465 endp->active = 1;
1466 ring->curr_endp = endp;
1467 ring->in_use = 1;
1468 mutex_unlock(&u132->scheduler_lock);
1469 retval = edset_input(u132, ring, endp, urb,
1470 address, endp->toggle_bits,
1471 u132_hcd_bulk_input_recv);
1472 if (retval == 0) {
1473 } else
1474 u132_hcd_giveback_urb(u132, endp, urb,
1475 retval);
1476 return;
1477 }
1478 } else { /* output pipe */
1479 u8 address = u132->addr[endp->usb_addr].address;
1480 if (ring->in_use) {
1481 mutex_unlock(&u132->scheduler_lock);
1482 u132_endp_put_kref(u132, endp);
1483 return;
1484 } else {
1485 int retval;
1486 struct urb *urb = endp->urb_list[
1487 ENDP_QUEUE_MASK & endp->queue_next];
1488 endp->active = 1;
1489 ring->curr_endp = endp;
1490 ring->in_use = 1;
1491 mutex_unlock(&u132->scheduler_lock);
1492 retval = edset_output(u132, ring, endp, urb,
1493 address, endp->toggle_bits,
1494 u132_hcd_bulk_output_sent);
1495 if (retval == 0) {
1496 } else
1497 u132_hcd_giveback_urb(u132, endp, urb,
1498 retval);
1499 return;
1500 }
1501 }
1502 }
1503}
1504#ifdef CONFIG_PM
1505
1506static void port_power(struct u132 *u132, int pn, int is_on)
1507{
1508 u132->port[pn].power = is_on;
1509}
1510
1511#endif
1512
1513static void u132_power(struct u132 *u132, int is_on)
1514{
1515 struct usb_hcd *hcd = u132_to_hcd(u132)
1516 ; /* hub is inactive unless the port is powered */
1517 if (is_on) {
1518 if (u132->power)
1519 return;
1520 u132->power = 1;
1521 } else {
1522 u132->power = 0;
1523 hcd->state = HC_STATE_HALT;
1524 }
1525}
1526
1527static int u132_periodic_reinit(struct u132 *u132)
1528{
1529 int retval;
1530 u32 fi = u132->hc_fminterval & 0x03fff;
1531 u32 fit;
1532 u32 fminterval;
1533 retval = u132_read_pcimem(u132, fminterval, &fminterval);
1534 if (retval)
1535 return retval;
1536 fit = fminterval & FIT;
1537 retval = u132_write_pcimem(u132, fminterval,
1538 (fit ^ FIT) | u132->hc_fminterval);
1539 if (retval)
1540 return retval;
1541 return u132_write_pcimem(u132, periodicstart,
1542 ((9 * fi) / 10) & 0x3fff);
1543}
1544
1545static char *hcfs2string(int state)
1546{
1547 switch (state) {
1548 case OHCI_USB_RESET:
1549 return "reset";
1550 case OHCI_USB_RESUME:
1551 return "resume";
1552 case OHCI_USB_OPER:
1553 return "operational";
1554 case OHCI_USB_SUSPEND:
1555 return "suspend";
1556 }
1557 return "?";
1558}
1559
1560static int u132_init(struct u132 *u132)
1561{
1562 int retval;
1563 u32 control;
1564 u132_disable(u132);
1565 u132->next_statechange = jiffies;
1566 retval = u132_write_pcimem(u132, intrdisable, OHCI_INTR_MIE);
1567 if (retval)
1568 return retval;
1569 retval = u132_read_pcimem(u132, control, &control);
1570 if (retval)
1571 return retval;
1572 if (u132->num_ports == 0) {
1573 u32 rh_a = -1;
1574 retval = u132_read_pcimem(u132, roothub.a, &rh_a);
1575 if (retval)
1576 return retval;
1577 u132->num_ports = rh_a & RH_A_NDP;
1578 retval = read_roothub_info(u132);
1579 if (retval)
1580 return retval;
1581 }
1582 if (u132->num_ports > MAX_U132_PORTS)
1583 return -EINVAL;
1584
1585 return 0;
1586}
1587
1588
1589/* Start an OHCI controller, set the BUS operational
1590* resets USB and controller
1591* enable interrupts
1592*/
1593static int u132_run(struct u132 *u132)
1594{
1595 int retval;
1596 u32 control;
1597 u32 status;
1598 u32 fminterval;
1599 u32 periodicstart;
1600 u32 cmdstatus;
1601 u32 roothub_a;
1602 int mask = OHCI_INTR_INIT;
1603 int first = u132->hc_fminterval == 0;
1604 int sleep_time = 0;
1605 int reset_timeout = 30; /* ... allow extra time */
1606 u132_disable(u132);
1607 if (first) {
1608 u32 temp;
1609 retval = u132_read_pcimem(u132, fminterval, &temp);
1610 if (retval)
1611 return retval;
1612 u132->hc_fminterval = temp & 0x3fff;
1613 u132->hc_fminterval |= FSMP(u132->hc_fminterval) << 16;
1614 }
1615 retval = u132_read_pcimem(u132, control, &u132->hc_control);
1616 if (retval)
1617 return retval;
1618 dev_info(&u132->platform_dev->dev, "resetting from state '%s', control "
1619 "= %08X\n", hcfs2string(u132->hc_control & OHCI_CTRL_HCFS),
1620 u132->hc_control);
1621 switch (u132->hc_control & OHCI_CTRL_HCFS) {
1622 case OHCI_USB_OPER:
1623 sleep_time = 0;
1624 break;
1625 case OHCI_USB_SUSPEND:
1626 case OHCI_USB_RESUME:
1627 u132->hc_control &= OHCI_CTRL_RWC;
1628 u132->hc_control |= OHCI_USB_RESUME;
1629 sleep_time = 10;
1630 break;
1631 default:
1632 u132->hc_control &= OHCI_CTRL_RWC;
1633 u132->hc_control |= OHCI_USB_RESET;
1634 sleep_time = 50;
1635 break;
1636 }
1637 retval = u132_write_pcimem(u132, control, u132->hc_control);
1638 if (retval)
1639 return retval;
1640 retval = u132_read_pcimem(u132, control, &control);
1641 if (retval)
1642 return retval;
1643 msleep(sleep_time);
1644 retval = u132_read_pcimem(u132, roothub.a, &roothub_a);
1645 if (retval)
1646 return retval;
1647 if (!(roothub_a & RH_A_NPS)) {
1648 int temp; /* power down each port */
1649 for (temp = 0; temp < u132->num_ports; temp++) {
1650 retval = u132_write_pcimem(u132,
1651 roothub.portstatus[temp], RH_PS_LSDA);
1652 if (retval)
1653 return retval;
1654 }
1655 }
1656 retval = u132_read_pcimem(u132, control, &control);
1657 if (retval)
1658 return retval;
1659retry:
1660 retval = u132_read_pcimem(u132, cmdstatus, &status);
1661 if (retval)
1662 return retval;
1663 retval = u132_write_pcimem(u132, cmdstatus, OHCI_HCR);
1664 if (retval)
1665 return retval;
1666extra: {
1667 retval = u132_read_pcimem(u132, cmdstatus, &status);
1668 if (retval)
1669 return retval;
1670 if (0 != (status & OHCI_HCR)) {
1671 if (--reset_timeout == 0) {
1672 dev_err(&u132->platform_dev->dev, "USB HC reset"
1673 " timed out!\n");
1674 return -ENODEV;
1675 } else {
1676 msleep(5);
1677 goto extra;
1678 }
1679 }
1680 }
1681 if (u132->flags & OHCI_QUIRK_INITRESET) {
1682 retval = u132_write_pcimem(u132, control, u132->hc_control);
1683 if (retval)
1684 return retval;
1685 retval = u132_read_pcimem(u132, control, &control);
1686 if (retval)
1687 return retval;
1688 }
1689 retval = u132_write_pcimem(u132, ed_controlhead, 0x00000000);
1690 if (retval)
1691 return retval;
1692 retval = u132_write_pcimem(u132, ed_bulkhead, 0x11000000);
1693 if (retval)
1694 return retval;
1695 retval = u132_write_pcimem(u132, hcca, 0x00000000);
1696 if (retval)
1697 return retval;
1698 retval = u132_periodic_reinit(u132);
1699 if (retval)
1700 return retval;
1701 retval = u132_read_pcimem(u132, fminterval, &fminterval);
1702 if (retval)
1703 return retval;
1704 retval = u132_read_pcimem(u132, periodicstart, &periodicstart);
1705 if (retval)
1706 return retval;
1707 if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) {
1708 if (!(u132->flags & OHCI_QUIRK_INITRESET)) {
1709 u132->flags |= OHCI_QUIRK_INITRESET;
1710 goto retry;
1711 } else
1712 dev_err(&u132->platform_dev->dev, "init err(%08x %04x)"
1713 "\n", fminterval, periodicstart);
1714 } /* start controller operations */
1715 u132->hc_control &= OHCI_CTRL_RWC;
1716 u132->hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER;
1717 retval = u132_write_pcimem(u132, control, u132->hc_control);
1718 if (retval)
1719 return retval;
1720 retval = u132_write_pcimem(u132, cmdstatus, OHCI_BLF);
1721 if (retval)
1722 return retval;
1723 retval = u132_read_pcimem(u132, cmdstatus, &cmdstatus);
1724 if (retval)
1725 return retval;
1726 retval = u132_read_pcimem(u132, control, &control);
1727 if (retval)
1728 return retval;
1729 u132_to_hcd(u132)->state = HC_STATE_RUNNING;
1730 retval = u132_write_pcimem(u132, roothub.status, RH_HS_DRWE);
1731 if (retval)
1732 return retval;
1733 retval = u132_write_pcimem(u132, intrstatus, mask);
1734 if (retval)
1735 return retval;
1736 retval = u132_write_pcimem(u132, intrdisable,
1737 OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO |
1738 OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH |
1739 OHCI_INTR_SO);
1740 if (retval)
1741 return retval; /* handle root hub init quirks ... */
1742 retval = u132_read_pcimem(u132, roothub.a, &roothub_a);
1743 if (retval)
1744 return retval;
1745 roothub_a &= ~(RH_A_PSM | RH_A_OCPM);
1746 if (u132->flags & OHCI_QUIRK_SUPERIO) {
1747 roothub_a |= RH_A_NOCP;
1748 roothub_a &= ~(RH_A_POTPGT | RH_A_NPS);
1749 retval = u132_write_pcimem(u132, roothub.a, roothub_a);
1750 if (retval)
1751 return retval;
1752 } else if ((u132->flags & OHCI_QUIRK_AMD756) || distrust_firmware) {
1753 roothub_a |= RH_A_NPS;
1754 retval = u132_write_pcimem(u132, roothub.a, roothub_a);
1755 if (retval)
1756 return retval;
1757 }
1758 retval = u132_write_pcimem(u132, roothub.status, RH_HS_LPSC);
1759 if (retval)
1760 return retval;
1761 retval = u132_write_pcimem(u132, roothub.b,
1762 (roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM);
1763 if (retval)
1764 return retval;
1765 retval = u132_read_pcimem(u132, control, &control);
1766 if (retval)
1767 return retval;
1768 mdelay((roothub_a >> 23) & 0x1fe);
1769 u132_to_hcd(u132)->state = HC_STATE_RUNNING;
1770 return 0;
1771}
1772
1773static void u132_hcd_stop(struct usb_hcd *hcd)
1774{
1775 struct u132 *u132 = hcd_to_u132(hcd);
1776 if (u132->going > 1) {
1777 dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p) has b"
1778 "een removed %d\n", u132, hcd, u132->going);
1779 } else if (u132->going > 0) {
1780 dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov"
1781 "ed\n", hcd);
1782 } else {
1783 mutex_lock(&u132->sw_lock);
1784 msleep(100);
1785 u132_power(u132, 0);
1786 mutex_unlock(&u132->sw_lock);
1787 }
1788}
1789
1790static int u132_hcd_start(struct usb_hcd *hcd)
1791{
1792 struct u132 *u132 = hcd_to_u132(hcd);
1793 if (u132->going > 1) {
1794 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1795 , u132->going);
1796 return -ENODEV;
1797 } else if (u132->going > 0) {
1798 dev_err(&u132->platform_dev->dev, "device is being removed\n");
1799 return -ESHUTDOWN;
1800 } else if (hcd->self.controller) {
1801 int retval;
1802 struct platform_device *pdev =
1803 to_platform_device(hcd->self.controller);
1804 u16 vendor = ((struct u132_platform_data *)
1805 dev_get_platdata(&pdev->dev))->vendor;
1806 u16 device = ((struct u132_platform_data *)
1807 dev_get_platdata(&pdev->dev))->device;
1808 mutex_lock(&u132->sw_lock);
1809 msleep(10);
1810 if (vendor == PCI_VENDOR_ID_AMD && device == 0x740c) {
1811 u132->flags = OHCI_QUIRK_AMD756;
1812 } else if (vendor == PCI_VENDOR_ID_OPTI && device == 0xc861) {
1813 dev_err(&u132->platform_dev->dev, "WARNING: OPTi workar"
1814 "ounds unavailable\n");
1815 } else if (vendor == PCI_VENDOR_ID_COMPAQ && device == 0xa0f8)
1816 u132->flags |= OHCI_QUIRK_ZFMICRO;
1817 retval = u132_run(u132);
1818 if (retval) {
1819 u132_disable(u132);
1820 u132->going = 1;
1821 }
1822 msleep(100);
1823 mutex_unlock(&u132->sw_lock);
1824 return retval;
1825 } else {
1826 dev_err(&u132->platform_dev->dev, "platform_device missing\n");
1827 return -ENODEV;
1828 }
1829}
1830
1831static int u132_hcd_reset(struct usb_hcd *hcd)
1832{
1833 struct u132 *u132 = hcd_to_u132(hcd);
1834 if (u132->going > 1) {
1835 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1836 , u132->going);
1837 return -ENODEV;
1838 } else if (u132->going > 0) {
1839 dev_err(&u132->platform_dev->dev, "device is being removed\n");
1840 return -ESHUTDOWN;
1841 } else {
1842 int retval;
1843 mutex_lock(&u132->sw_lock);
1844 retval = u132_init(u132);
1845 if (retval) {
1846 u132_disable(u132);
1847 u132->going = 1;
1848 }
1849 mutex_unlock(&u132->sw_lock);
1850 return retval;
1851 }
1852}
1853
1854static int create_endpoint_and_queue_int(struct u132 *u132,
1855 struct u132_udev *udev, struct urb *urb,
1856 struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address,
1857 gfp_t mem_flags)
1858{
1859 struct u132_ring *ring;
1860 unsigned long irqs;
1861 int rc;
1862 u8 endp_number;
1863 struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags);
1864
1865 if (!endp)
1866 return -ENOMEM;
1867
1868 spin_lock_init(&endp->queue_lock.slock);
1869 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
1870 rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb);
1871 if (rc) {
1872 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
1873 kfree(endp);
1874 return rc;
1875 }
1876
1877 endp_number = ++u132->num_endpoints;
1878 urb->ep->hcpriv = u132->endp[endp_number - 1] = endp;
1879 INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
1880 INIT_LIST_HEAD(&endp->urb_more);
1881 ring = endp->ring = &u132->ring[0];
1882 if (ring->curr_endp) {
1883 list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
1884 } else {
1885 INIT_LIST_HEAD(&endp->endp_ring);
1886 ring->curr_endp = endp;
1887 }
1888 ring->length += 1;
1889 endp->dequeueing = 0;
1890 endp->edset_flush = 0;
1891 endp->active = 0;
1892 endp->delayed = 0;
1893 endp->endp_number = endp_number;
1894 endp->u132 = u132;
1895 endp->hep = urb->ep;
1896 endp->pipetype = usb_pipetype(urb->pipe);
1897 u132_endp_init_kref(u132, endp);
1898 if (usb_pipein(urb->pipe)) {
1899 endp->toggle_bits = 0x2;
1900 usb_settoggle(udev->usb_device, usb_endp, 0, 0);
1901 endp->input = 1;
1902 endp->output = 0;
1903 udev->endp_number_in[usb_endp] = endp_number;
1904 u132_udev_get_kref(u132, udev);
1905 } else {
1906 endp->toggle_bits = 0x2;
1907 usb_settoggle(udev->usb_device, usb_endp, 1, 0);
1908 endp->input = 0;
1909 endp->output = 1;
1910 udev->endp_number_out[usb_endp] = endp_number;
1911 u132_udev_get_kref(u132, udev);
1912 }
1913 urb->hcpriv = u132;
1914 endp->delayed = 1;
1915 endp->jiffies = jiffies + msecs_to_jiffies(urb->interval);
1916 endp->udev_number = address;
1917 endp->usb_addr = usb_addr;
1918 endp->usb_endp = usb_endp;
1919 endp->queue_size = 1;
1920 endp->queue_last = 0;
1921 endp->queue_next = 0;
1922 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
1923 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
1924 u132_endp_queue_work(u132, endp, msecs_to_jiffies(urb->interval));
1925 return 0;
1926}
1927
1928static int queue_int_on_old_endpoint(struct u132 *u132,
1929 struct u132_udev *udev, struct urb *urb,
1930 struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
1931 u8 usb_endp, u8 address)
1932{
1933 urb->hcpriv = u132;
1934 endp->delayed = 1;
1935 endp->jiffies = jiffies + msecs_to_jiffies(urb->interval);
1936 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
1937 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
1938 } else {
1939 struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq),
1940 GFP_ATOMIC);
1941 if (urbq == NULL) {
1942 endp->queue_size -= 1;
1943 return -ENOMEM;
1944 } else {
1945 list_add_tail(&urbq->urb_more, &endp->urb_more);
1946 urbq->urb = urb;
1947 }
1948 }
1949 return 0;
1950}
1951
1952static int create_endpoint_and_queue_bulk(struct u132 *u132,
1953 struct u132_udev *udev, struct urb *urb,
1954 struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address,
1955 gfp_t mem_flags)
1956{
1957 int ring_number;
1958 struct u132_ring *ring;
1959 unsigned long irqs;
1960 int rc;
1961 u8 endp_number;
1962 struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags);
1963
1964 if (!endp)
1965 return -ENOMEM;
1966
1967 spin_lock_init(&endp->queue_lock.slock);
1968 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
1969 rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb);
1970 if (rc) {
1971 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
1972 kfree(endp);
1973 return rc;
1974 }
1975
1976 endp_number = ++u132->num_endpoints;
1977 urb->ep->hcpriv = u132->endp[endp_number - 1] = endp;
1978 INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
1979 INIT_LIST_HEAD(&endp->urb_more);
1980 endp->dequeueing = 0;
1981 endp->edset_flush = 0;
1982 endp->active = 0;
1983 endp->delayed = 0;
1984 endp->endp_number = endp_number;
1985 endp->u132 = u132;
1986 endp->hep = urb->ep;
1987 endp->pipetype = usb_pipetype(urb->pipe);
1988 u132_endp_init_kref(u132, endp);
1989 if (usb_pipein(urb->pipe)) {
1990 endp->toggle_bits = 0x2;
1991 usb_settoggle(udev->usb_device, usb_endp, 0, 0);
1992 ring_number = 3;
1993 endp->input = 1;
1994 endp->output = 0;
1995 udev->endp_number_in[usb_endp] = endp_number;
1996 u132_udev_get_kref(u132, udev);
1997 } else {
1998 endp->toggle_bits = 0x2;
1999 usb_settoggle(udev->usb_device, usb_endp, 1, 0);
2000 ring_number = 2;
2001 endp->input = 0;
2002 endp->output = 1;
2003 udev->endp_number_out[usb_endp] = endp_number;
2004 u132_udev_get_kref(u132, udev);
2005 }
2006 ring = endp->ring = &u132->ring[ring_number - 1];
2007 if (ring->curr_endp) {
2008 list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
2009 } else {
2010 INIT_LIST_HEAD(&endp->endp_ring);
2011 ring->curr_endp = endp;
2012 }
2013 ring->length += 1;
2014 urb->hcpriv = u132;
2015 endp->udev_number = address;
2016 endp->usb_addr = usb_addr;
2017 endp->usb_endp = usb_endp;
2018 endp->queue_size = 1;
2019 endp->queue_last = 0;
2020 endp->queue_next = 0;
2021 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2022 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2023 u132_endp_queue_work(u132, endp, 0);
2024 return 0;
2025}
2026
2027static int queue_bulk_on_old_endpoint(struct u132 *u132, struct u132_udev *udev,
2028 struct urb *urb,
2029 struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
2030 u8 usb_endp, u8 address)
2031{
2032 urb->hcpriv = u132;
2033 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2034 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2035 } else {
2036 struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq),
2037 GFP_ATOMIC);
2038 if (urbq == NULL) {
2039 endp->queue_size -= 1;
2040 return -ENOMEM;
2041 } else {
2042 list_add_tail(&urbq->urb_more, &endp->urb_more);
2043 urbq->urb = urb;
2044 }
2045 }
2046 return 0;
2047}
2048
2049static int create_endpoint_and_queue_control(struct u132 *u132,
2050 struct urb *urb,
2051 struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp,
2052 gfp_t mem_flags)
2053{
2054 struct u132_ring *ring;
2055 unsigned long irqs;
2056 int rc;
2057 u8 endp_number;
2058 struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags);
2059
2060 if (!endp)
2061 return -ENOMEM;
2062
2063 spin_lock_init(&endp->queue_lock.slock);
2064 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
2065 rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb);
2066 if (rc) {
2067 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2068 kfree(endp);
2069 return rc;
2070 }
2071
2072 endp_number = ++u132->num_endpoints;
2073 urb->ep->hcpriv = u132->endp[endp_number - 1] = endp;
2074 INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
2075 INIT_LIST_HEAD(&endp->urb_more);
2076 ring = endp->ring = &u132->ring[0];
2077 if (ring->curr_endp) {
2078 list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
2079 } else {
2080 INIT_LIST_HEAD(&endp->endp_ring);
2081 ring->curr_endp = endp;
2082 }
2083 ring->length += 1;
2084 endp->dequeueing = 0;
2085 endp->edset_flush = 0;
2086 endp->active = 0;
2087 endp->delayed = 0;
2088 endp->endp_number = endp_number;
2089 endp->u132 = u132;
2090 endp->hep = urb->ep;
2091 u132_endp_init_kref(u132, endp);
2092 u132_endp_get_kref(u132, endp);
2093 if (usb_addr == 0) {
2094 u8 address = u132->addr[usb_addr].address;
2095 struct u132_udev *udev = &u132->udev[address];
2096 endp->udev_number = address;
2097 endp->usb_addr = usb_addr;
2098 endp->usb_endp = usb_endp;
2099 endp->input = 1;
2100 endp->output = 1;
2101 endp->pipetype = usb_pipetype(urb->pipe);
2102 u132_udev_init_kref(u132, udev);
2103 u132_udev_get_kref(u132, udev);
2104 udev->endp_number_in[usb_endp] = endp_number;
2105 udev->endp_number_out[usb_endp] = endp_number;
2106 urb->hcpriv = u132;
2107 endp->queue_size = 1;
2108 endp->queue_last = 0;
2109 endp->queue_next = 0;
2110 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2111 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2112 u132_endp_queue_work(u132, endp, 0);
2113 return 0;
2114 } else { /*(usb_addr > 0) */
2115 u8 address = u132->addr[usb_addr].address;
2116 struct u132_udev *udev = &u132->udev[address];
2117 endp->udev_number = address;
2118 endp->usb_addr = usb_addr;
2119 endp->usb_endp = usb_endp;
2120 endp->input = 1;
2121 endp->output = 1;
2122 endp->pipetype = usb_pipetype(urb->pipe);
2123 u132_udev_get_kref(u132, udev);
2124 udev->enumeration = 2;
2125 udev->endp_number_in[usb_endp] = endp_number;
2126 udev->endp_number_out[usb_endp] = endp_number;
2127 urb->hcpriv = u132;
2128 endp->queue_size = 1;
2129 endp->queue_last = 0;
2130 endp->queue_next = 0;
2131 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2132 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2133 u132_endp_queue_work(u132, endp, 0);
2134 return 0;
2135 }
2136}
2137
2138static int queue_control_on_old_endpoint(struct u132 *u132,
2139 struct urb *urb,
2140 struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
2141 u8 usb_endp)
2142{
2143 if (usb_addr == 0) {
2144 if (usb_pipein(urb->pipe)) {
2145 urb->hcpriv = u132;
2146 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2147 endp->urb_list[ENDP_QUEUE_MASK &
2148 endp->queue_last++] = urb;
2149 } else {
2150 struct u132_urbq *urbq =
2151 kmalloc(sizeof(struct u132_urbq),
2152 GFP_ATOMIC);
2153 if (urbq == NULL) {
2154 endp->queue_size -= 1;
2155 return -ENOMEM;
2156 } else {
2157 list_add_tail(&urbq->urb_more,
2158 &endp->urb_more);
2159 urbq->urb = urb;
2160 }
2161 }
2162 return 0;
2163 } else { /* usb_pipeout(urb->pipe) */
2164 struct u132_addr *addr = &u132->addr[usb_dev->devnum];
2165 int I = MAX_U132_UDEVS;
2166 int i = 0;
2167 while (--I > 0) {
2168 struct u132_udev *udev = &u132->udev[++i];
2169 if (udev->usb_device) {
2170 continue;
2171 } else {
2172 udev->enumeration = 1;
2173 u132->addr[0].address = i;
2174 endp->udev_number = i;
2175 udev->udev_number = i;
2176 udev->usb_addr = usb_dev->devnum;
2177 u132_udev_init_kref(u132, udev);
2178 udev->endp_number_in[usb_endp] =
2179 endp->endp_number;
2180 u132_udev_get_kref(u132, udev);
2181 udev->endp_number_out[usb_endp] =
2182 endp->endp_number;
2183 udev->usb_device = usb_dev;
2184 ((u8 *) (urb->setup_packet))[2] =
2185 addr->address = i;
2186 u132_udev_get_kref(u132, udev);
2187 break;
2188 }
2189 }
2190 if (I == 0) {
2191 dev_err(&u132->platform_dev->dev, "run out of d"
2192 "evice space\n");
2193 return -EINVAL;
2194 }
2195 urb->hcpriv = u132;
2196 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2197 endp->urb_list[ENDP_QUEUE_MASK &
2198 endp->queue_last++] = urb;
2199 } else {
2200 struct u132_urbq *urbq =
2201 kmalloc(sizeof(struct u132_urbq),
2202 GFP_ATOMIC);
2203 if (urbq == NULL) {
2204 endp->queue_size -= 1;
2205 return -ENOMEM;
2206 } else {
2207 list_add_tail(&urbq->urb_more,
2208 &endp->urb_more);
2209 urbq->urb = urb;
2210 }
2211 }
2212 return 0;
2213 }
2214 } else { /*(usb_addr > 0) */
2215 u8 address = u132->addr[usb_addr].address;
2216 struct u132_udev *udev = &u132->udev[address];
2217 urb->hcpriv = u132;
2218 if (udev->enumeration != 2)
2219 udev->enumeration = 2;
2220 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2221 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
2222 urb;
2223 } else {
2224 struct u132_urbq *urbq =
2225 kmalloc(sizeof(struct u132_urbq), GFP_ATOMIC);
2226 if (urbq == NULL) {
2227 endp->queue_size -= 1;
2228 return -ENOMEM;
2229 } else {
2230 list_add_tail(&urbq->urb_more, &endp->urb_more);
2231 urbq->urb = urb;
2232 }
2233 }
2234 return 0;
2235 }
2236}
2237
2238static int u132_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
2239 gfp_t mem_flags)
2240{
2241 struct u132 *u132 = hcd_to_u132(hcd);
2242 if (irqs_disabled()) {
2243 if (gfpflags_allow_blocking(mem_flags)) {
2244 printk(KERN_ERR "invalid context for function that might sleep\n");
2245 return -EINVAL;
2246 }
2247 }
2248 if (u132->going > 1) {
2249 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2250 , u132->going);
2251 return -ENODEV;
2252 } else if (u132->going > 0) {
2253 dev_err(&u132->platform_dev->dev, "device is being removed "
2254 "urb=%p\n", urb);
2255 return -ESHUTDOWN;
2256 } else {
2257 u8 usb_addr = usb_pipedevice(urb->pipe);
2258 u8 usb_endp = usb_pipeendpoint(urb->pipe);
2259 struct usb_device *usb_dev = urb->dev;
2260 if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) {
2261 u8 address = u132->addr[usb_addr].address;
2262 struct u132_udev *udev = &u132->udev[address];
2263 struct u132_endp *endp = urb->ep->hcpriv;
2264 urb->actual_length = 0;
2265 if (endp) {
2266 unsigned long irqs;
2267 int retval;
2268 spin_lock_irqsave(&endp->queue_lock.slock,
2269 irqs);
2270 retval = usb_hcd_link_urb_to_ep(hcd, urb);
2271 if (retval == 0) {
2272 retval = queue_int_on_old_endpoint(
2273 u132, udev, urb,
2274 usb_dev, endp,
2275 usb_addr, usb_endp,
2276 address);
2277 if (retval)
2278 usb_hcd_unlink_urb_from_ep(
2279 hcd, urb);
2280 }
2281 spin_unlock_irqrestore(&endp->queue_lock.slock,
2282 irqs);
2283 if (retval) {
2284 return retval;
2285 } else {
2286 u132_endp_queue_work(u132, endp,
2287 msecs_to_jiffies(urb->interval))
2288 ;
2289 return 0;
2290 }
2291 } else if (u132->num_endpoints == MAX_U132_ENDPS) {
2292 return -EINVAL;
2293 } else { /*(endp == NULL) */
2294 return create_endpoint_and_queue_int(u132, udev,
2295 urb, usb_dev, usb_addr,
2296 usb_endp, address, mem_flags);
2297 }
2298 } else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
2299 dev_err(&u132->platform_dev->dev, "the hardware does no"
2300 "t support PIPE_ISOCHRONOUS\n");
2301 return -EINVAL;
2302 } else if (usb_pipetype(urb->pipe) == PIPE_BULK) {
2303 u8 address = u132->addr[usb_addr].address;
2304 struct u132_udev *udev = &u132->udev[address];
2305 struct u132_endp *endp = urb->ep->hcpriv;
2306 urb->actual_length = 0;
2307 if (endp) {
2308 unsigned long irqs;
2309 int retval;
2310 spin_lock_irqsave(&endp->queue_lock.slock,
2311 irqs);
2312 retval = usb_hcd_link_urb_to_ep(hcd, urb);
2313 if (retval == 0) {
2314 retval = queue_bulk_on_old_endpoint(
2315 u132, udev, urb,
2316 usb_dev, endp,
2317 usb_addr, usb_endp,
2318 address);
2319 if (retval)
2320 usb_hcd_unlink_urb_from_ep(
2321 hcd, urb);
2322 }
2323 spin_unlock_irqrestore(&endp->queue_lock.slock,
2324 irqs);
2325 if (retval) {
2326 return retval;
2327 } else {
2328 u132_endp_queue_work(u132, endp, 0);
2329 return 0;
2330 }
2331 } else if (u132->num_endpoints == MAX_U132_ENDPS) {
2332 return -EINVAL;
2333 } else
2334 return create_endpoint_and_queue_bulk(u132,
2335 udev, urb, usb_dev, usb_addr,
2336 usb_endp, address, mem_flags);
2337 } else {
2338 struct u132_endp *endp = urb->ep->hcpriv;
2339 u16 urb_size = 8;
2340 u8 *b = urb->setup_packet;
2341 int i = 0;
2342 char data[30 * 3 + 4];
2343 char *d = data;
2344 int m = (sizeof(data) - 1) / 3;
2345 int l = 0;
2346 data[0] = 0;
2347 while (urb_size-- > 0) {
2348 if (i > m) {
2349 } else if (i++ < m) {
2350 int w = sprintf(d, " %02X", *b++);
2351 d += w;
2352 l += w;
2353 } else
2354 d += sprintf(d, " ..");
2355 }
2356 if (endp) {
2357 unsigned long irqs;
2358 int retval;
2359 spin_lock_irqsave(&endp->queue_lock.slock,
2360 irqs);
2361 retval = usb_hcd_link_urb_to_ep(hcd, urb);
2362 if (retval == 0) {
2363 retval = queue_control_on_old_endpoint(
2364 u132, urb, usb_dev,
2365 endp, usb_addr,
2366 usb_endp);
2367 if (retval)
2368 usb_hcd_unlink_urb_from_ep(
2369 hcd, urb);
2370 }
2371 spin_unlock_irqrestore(&endp->queue_lock.slock,
2372 irqs);
2373 if (retval) {
2374 return retval;
2375 } else {
2376 u132_endp_queue_work(u132, endp, 0);
2377 return 0;
2378 }
2379 } else if (u132->num_endpoints == MAX_U132_ENDPS) {
2380 return -EINVAL;
2381 } else
2382 return create_endpoint_and_queue_control(u132,
2383 urb, usb_dev, usb_addr, usb_endp,
2384 mem_flags);
2385 }
2386 }
2387}
2388
2389static int dequeue_from_overflow_chain(struct u132 *u132,
2390 struct u132_endp *endp, struct urb *urb)
2391{
2392 struct u132_urbq *urbq;
2393
2394 list_for_each_entry(urbq, &endp->urb_more, urb_more) {
2395 if (urbq->urb == urb) {
2396 struct usb_hcd *hcd = u132_to_hcd(u132);
2397 list_del(&urbq->urb_more);
2398 endp->queue_size -= 1;
2399 urb->error_count = 0;
2400 usb_hcd_giveback_urb(hcd, urb, 0);
2401 return 0;
2402 } else
2403 continue;
2404 }
2405 dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]=%p ring"
2406 "[%d] %c%c usb_endp=%d usb_addr=%d size=%d next=%04X last=%04X"
2407 "\n", urb, endp->endp_number, endp, endp->ring->number,
2408 endp->input ? 'I' : ' ', endp->output ? 'O' : ' ',
2409 endp->usb_endp, endp->usb_addr, endp->queue_size,
2410 endp->queue_next, endp->queue_last);
2411 return -EINVAL;
2412}
2413
2414static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp,
2415 struct urb *urb, int status)
2416{
2417 unsigned long irqs;
2418 int rc;
2419
2420 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
2421 rc = usb_hcd_check_unlink_urb(u132_to_hcd(u132), urb, status);
2422 if (rc) {
2423 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2424 return rc;
2425 }
2426 if (endp->queue_size == 0) {
2427 dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]"
2428 "=%p ring[%d] %c%c usb_endp=%d usb_addr=%d\n", urb,
2429 endp->endp_number, endp, endp->ring->number,
2430 endp->input ? 'I' : ' ', endp->output ? 'O' : ' ',
2431 endp->usb_endp, endp->usb_addr);
2432 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2433 return -EINVAL;
2434 }
2435 if (urb == endp->urb_list[ENDP_QUEUE_MASK & endp->queue_next]) {
2436 if (endp->active) {
2437 endp->dequeueing = 1;
2438 endp->edset_flush = 1;
2439 u132_endp_queue_work(u132, endp, 0);
2440 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2441 return 0;
2442 } else {
2443 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2444 u132_hcd_abandon_urb(u132, endp, urb, status);
2445 return 0;
2446 }
2447 } else {
2448 u16 queue_list = 0;
2449 u16 queue_size = endp->queue_size;
2450 u16 queue_scan = endp->queue_next;
2451 struct urb **urb_slot = NULL;
2452 while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) {
2453 if (urb == endp->urb_list[ENDP_QUEUE_MASK &
2454 ++queue_scan]) {
2455 urb_slot = &endp->urb_list[ENDP_QUEUE_MASK &
2456 queue_scan];
2457 break;
2458 } else
2459 continue;
2460 }
2461 while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) {
2462 *urb_slot = endp->urb_list[ENDP_QUEUE_MASK &
2463 ++queue_scan];
2464 urb_slot = &endp->urb_list[ENDP_QUEUE_MASK &
2465 queue_scan];
2466 }
2467 if (urb_slot) {
2468 struct usb_hcd *hcd = u132_to_hcd(u132);
2469
2470 usb_hcd_unlink_urb_from_ep(hcd, urb);
2471 endp->queue_size -= 1;
2472 if (list_empty(&endp->urb_more)) {
2473 spin_unlock_irqrestore(&endp->queue_lock.slock,
2474 irqs);
2475 } else {
2476 struct list_head *next = endp->urb_more.next;
2477 struct u132_urbq *urbq = list_entry(next,
2478 struct u132_urbq, urb_more);
2479 list_del(next);
2480 *urb_slot = urbq->urb;
2481 spin_unlock_irqrestore(&endp->queue_lock.slock,
2482 irqs);
2483 kfree(urbq);
2484 } urb->error_count = 0;
2485 usb_hcd_giveback_urb(hcd, urb, status);
2486 return 0;
2487 } else if (list_empty(&endp->urb_more)) {
2488 dev_err(&u132->platform_dev->dev, "urb=%p not found in "
2489 "endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr"
2490 "=%d size=%d next=%04X last=%04X\n", urb,
2491 endp->endp_number, endp, endp->ring->number,
2492 endp->input ? 'I' : ' ',
2493 endp->output ? 'O' : ' ', endp->usb_endp,
2494 endp->usb_addr, endp->queue_size,
2495 endp->queue_next, endp->queue_last);
2496 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2497 return -EINVAL;
2498 } else {
2499 int retval;
2500
2501 usb_hcd_unlink_urb_from_ep(u132_to_hcd(u132), urb);
2502 retval = dequeue_from_overflow_chain(u132, endp,
2503 urb);
2504 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2505 return retval;
2506 }
2507 }
2508}
2509
2510static int u132_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
2511{
2512 struct u132 *u132 = hcd_to_u132(hcd);
2513 if (u132->going > 2) {
2514 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2515 , u132->going);
2516 return -ENODEV;
2517 } else {
2518 u8 usb_addr = usb_pipedevice(urb->pipe);
2519 u8 usb_endp = usb_pipeendpoint(urb->pipe);
2520 u8 address = u132->addr[usb_addr].address;
2521 struct u132_udev *udev = &u132->udev[address];
2522 if (usb_pipein(urb->pipe)) {
2523 u8 endp_number = udev->endp_number_in[usb_endp];
2524 struct u132_endp *endp = u132->endp[endp_number - 1];
2525 return u132_endp_urb_dequeue(u132, endp, urb, status);
2526 } else {
2527 u8 endp_number = udev->endp_number_out[usb_endp];
2528 struct u132_endp *endp = u132->endp[endp_number - 1];
2529 return u132_endp_urb_dequeue(u132, endp, urb, status);
2530 }
2531 }
2532}
2533
2534static void u132_endpoint_disable(struct usb_hcd *hcd,
2535 struct usb_host_endpoint *hep)
2536{
2537 struct u132 *u132 = hcd_to_u132(hcd);
2538 if (u132->going > 2) {
2539 dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p hep=%p"
2540 ") has been removed %d\n", u132, hcd, hep,
2541 u132->going);
2542 } else {
2543 struct u132_endp *endp = hep->hcpriv;
2544 if (endp)
2545 u132_endp_put_kref(u132, endp);
2546 }
2547}
2548
2549static int u132_get_frame(struct usb_hcd *hcd)
2550{
2551 struct u132 *u132 = hcd_to_u132(hcd);
2552 if (u132->going > 1) {
2553 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2554 , u132->going);
2555 return -ENODEV;
2556 } else if (u132->going > 0) {
2557 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2558 return -ESHUTDOWN;
2559 } else {
2560 int frame = 0;
2561 dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n");
2562 msleep(100);
2563 return frame;
2564 }
2565}
2566
2567static int u132_roothub_descriptor(struct u132 *u132,
2568 struct usb_hub_descriptor *desc)
2569{
2570 int retval;
2571 u16 temp;
2572 u32 rh_a = -1;
2573 u32 rh_b = -1;
2574 retval = u132_read_pcimem(u132, roothub.a, &rh_a);
2575 if (retval)
2576 return retval;
2577 desc->bDescriptorType = USB_DT_HUB;
2578 desc->bPwrOn2PwrGood = (rh_a & RH_A_POTPGT) >> 24;
2579 desc->bHubContrCurrent = 0;
2580 desc->bNbrPorts = u132->num_ports;
2581 temp = 1 + (u132->num_ports / 8);
2582 desc->bDescLength = 7 + 2 * temp;
2583 temp = HUB_CHAR_COMMON_LPSM | HUB_CHAR_COMMON_OCPM;
2584 if (rh_a & RH_A_NPS)
2585 temp |= HUB_CHAR_NO_LPSM;
2586 if (rh_a & RH_A_PSM)
2587 temp |= HUB_CHAR_INDV_PORT_LPSM;
2588 if (rh_a & RH_A_NOCP)
2589 temp |= HUB_CHAR_NO_OCPM;
2590 else if (rh_a & RH_A_OCPM)
2591 temp |= HUB_CHAR_INDV_PORT_OCPM;
2592 desc->wHubCharacteristics = cpu_to_le16(temp);
2593 retval = u132_read_pcimem(u132, roothub.b, &rh_b);
2594 if (retval)
2595 return retval;
2596 memset(desc->u.hs.DeviceRemovable, 0xff,
2597 sizeof(desc->u.hs.DeviceRemovable));
2598 desc->u.hs.DeviceRemovable[0] = rh_b & RH_B_DR;
2599 if (u132->num_ports > 7) {
2600 desc->u.hs.DeviceRemovable[1] = (rh_b & RH_B_DR) >> 8;
2601 desc->u.hs.DeviceRemovable[2] = 0xff;
2602 } else
2603 desc->u.hs.DeviceRemovable[1] = 0xff;
2604 return 0;
2605}
2606
2607static int u132_roothub_status(struct u132 *u132, __le32 *desc)
2608{
2609 u32 rh_status = -1;
2610 int ret_status = u132_read_pcimem(u132, roothub.status, &rh_status);
2611 *desc = cpu_to_le32(rh_status);
2612 return ret_status;
2613}
2614
2615static int u132_roothub_portstatus(struct u132 *u132, __le32 *desc, u16 wIndex)
2616{
2617 if (wIndex == 0 || wIndex > u132->num_ports) {
2618 return -EINVAL;
2619 } else {
2620 int port = wIndex - 1;
2621 u32 rh_portstatus = -1;
2622 int ret_portstatus = u132_read_pcimem(u132,
2623 roothub.portstatus[port], &rh_portstatus);
2624 *desc = cpu_to_le32(rh_portstatus);
2625 if (*(u16 *) (desc + 2)) {
2626 dev_info(&u132->platform_dev->dev, "Port %d Status Chan"
2627 "ge = %08X\n", port, *desc);
2628 }
2629 return ret_portstatus;
2630 }
2631}
2632
2633
2634/* this timer value might be vendor-specific ... */
2635#define PORT_RESET_HW_MSEC 10
2636#define PORT_RESET_MSEC 10
2637/* wrap-aware logic morphed from <linux/jiffies.h> */
2638#define tick_before(t1, t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0)
2639static int u132_roothub_portreset(struct u132 *u132, int port_index)
2640{
2641 int retval;
2642 u32 fmnumber;
2643 u16 now;
2644 u16 reset_done;
2645 retval = u132_read_pcimem(u132, fmnumber, &fmnumber);
2646 if (retval)
2647 return retval;
2648 now = fmnumber;
2649 reset_done = now + PORT_RESET_MSEC;
2650 do {
2651 u32 portstat;
2652 do {
2653 retval = u132_read_pcimem(u132,
2654 roothub.portstatus[port_index], &portstat);
2655 if (retval)
2656 return retval;
2657 if (RH_PS_PRS & portstat)
2658 continue;
2659 else
2660 break;
2661 } while (tick_before(now, reset_done));
2662 if (RH_PS_PRS & portstat)
2663 return -ENODEV;
2664 if (RH_PS_CCS & portstat) {
2665 if (RH_PS_PRSC & portstat) {
2666 retval = u132_write_pcimem(u132,
2667 roothub.portstatus[port_index],
2668 RH_PS_PRSC);
2669 if (retval)
2670 return retval;
2671 }
2672 } else
2673 break; /* start the next reset,
2674 sleep till it's probably done */
2675 retval = u132_write_pcimem(u132, roothub.portstatus[port_index],
2676 RH_PS_PRS);
2677 if (retval)
2678 return retval;
2679 msleep(PORT_RESET_HW_MSEC);
2680 retval = u132_read_pcimem(u132, fmnumber, &fmnumber);
2681 if (retval)
2682 return retval;
2683 now = fmnumber;
2684 } while (tick_before(now, reset_done));
2685 return 0;
2686}
2687
2688static int u132_roothub_setportfeature(struct u132 *u132, u16 wValue,
2689 u16 wIndex)
2690{
2691 if (wIndex == 0 || wIndex > u132->num_ports) {
2692 return -EINVAL;
2693 } else {
2694 int port_index = wIndex - 1;
2695 struct u132_port *port = &u132->port[port_index];
2696 port->Status &= ~(1 << wValue);
2697 switch (wValue) {
2698 case USB_PORT_FEAT_SUSPEND:
2699 return u132_write_pcimem(u132,
2700 roothub.portstatus[port_index], RH_PS_PSS);
2701 case USB_PORT_FEAT_POWER:
2702 return u132_write_pcimem(u132,
2703 roothub.portstatus[port_index], RH_PS_PPS);
2704 case USB_PORT_FEAT_RESET:
2705 return u132_roothub_portreset(u132, port_index);
2706 default:
2707 return -EPIPE;
2708 }
2709 }
2710}
2711
2712static int u132_roothub_clearportfeature(struct u132 *u132, u16 wValue,
2713 u16 wIndex)
2714{
2715 if (wIndex == 0 || wIndex > u132->num_ports) {
2716 return -EINVAL;
2717 } else {
2718 int port_index = wIndex - 1;
2719 u32 temp;
2720 struct u132_port *port = &u132->port[port_index];
2721 port->Status &= ~(1 << wValue);
2722 switch (wValue) {
2723 case USB_PORT_FEAT_ENABLE:
2724 temp = RH_PS_CCS;
2725 break;
2726 case USB_PORT_FEAT_C_ENABLE:
2727 temp = RH_PS_PESC;
2728 break;
2729 case USB_PORT_FEAT_SUSPEND:
2730 temp = RH_PS_POCI;
2731 if ((u132->hc_control & OHCI_CTRL_HCFS)
2732 != OHCI_USB_OPER) {
2733 dev_err(&u132->platform_dev->dev, "TODO resume_"
2734 "root_hub\n");
2735 }
2736 break;
2737 case USB_PORT_FEAT_C_SUSPEND:
2738 temp = RH_PS_PSSC;
2739 break;
2740 case USB_PORT_FEAT_POWER:
2741 temp = RH_PS_LSDA;
2742 break;
2743 case USB_PORT_FEAT_C_CONNECTION:
2744 temp = RH_PS_CSC;
2745 break;
2746 case USB_PORT_FEAT_C_OVER_CURRENT:
2747 temp = RH_PS_OCIC;
2748 break;
2749 case USB_PORT_FEAT_C_RESET:
2750 temp = RH_PS_PRSC;
2751 break;
2752 default:
2753 return -EPIPE;
2754 }
2755 return u132_write_pcimem(u132, roothub.portstatus[port_index],
2756 temp);
2757 }
2758}
2759
2760
2761/* the virtual root hub timer IRQ checks for hub status*/
2762static int u132_hub_status_data(struct usb_hcd *hcd, char *buf)
2763{
2764 struct u132 *u132 = hcd_to_u132(hcd);
2765 if (u132->going > 1) {
2766 dev_err(&u132->platform_dev->dev, "device hcd=%p has been remov"
2767 "ed %d\n", hcd, u132->going);
2768 return -ENODEV;
2769 } else if (u132->going > 0) {
2770 dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov"
2771 "ed\n", hcd);
2772 return -ESHUTDOWN;
2773 } else {
2774 int i, changed = 0, length = 1;
2775 if (u132->flags & OHCI_QUIRK_AMD756) {
2776 if ((u132->hc_roothub_a & RH_A_NDP) > MAX_ROOT_PORTS) {
2777 dev_err(&u132->platform_dev->dev, "bogus NDP, r"
2778 "ereads as NDP=%d\n",
2779 u132->hc_roothub_a & RH_A_NDP);
2780 goto done;
2781 }
2782 }
2783 if (u132->hc_roothub_status & (RH_HS_LPSC | RH_HS_OCIC))
2784 buf[0] = changed = 1;
2785 else
2786 buf[0] = 0;
2787 if (u132->num_ports > 7) {
2788 buf[1] = 0;
2789 length++;
2790 }
2791 for (i = 0; i < u132->num_ports; i++) {
2792 if (u132->hc_roothub_portstatus[i] & (RH_PS_CSC |
2793 RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC |
2794 RH_PS_PRSC)) {
2795 changed = 1;
2796 if (i < 7)
2797 buf[0] |= 1 << (i + 1);
2798 else
2799 buf[1] |= 1 << (i - 7);
2800 continue;
2801 }
2802 if (!(u132->hc_roothub_portstatus[i] & RH_PS_CCS))
2803 continue;
2804
2805 if ((u132->hc_roothub_portstatus[i] & RH_PS_PSS))
2806 continue;
2807 }
2808done:
2809 return changed ? length : 0;
2810 }
2811}
2812
2813static int u132_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
2814 u16 wIndex, char *buf, u16 wLength)
2815{
2816 struct u132 *u132 = hcd_to_u132(hcd);
2817 if (u132->going > 1) {
2818 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2819 , u132->going);
2820 return -ENODEV;
2821 } else if (u132->going > 0) {
2822 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2823 return -ESHUTDOWN;
2824 } else {
2825 int retval = 0;
2826 mutex_lock(&u132->sw_lock);
2827 switch (typeReq) {
2828 case ClearHubFeature:
2829 switch (wValue) {
2830 case C_HUB_OVER_CURRENT:
2831 case C_HUB_LOCAL_POWER:
2832 break;
2833 default:
2834 goto stall;
2835 }
2836 break;
2837 case SetHubFeature:
2838 switch (wValue) {
2839 case C_HUB_OVER_CURRENT:
2840 case C_HUB_LOCAL_POWER:
2841 break;
2842 default:
2843 goto stall;
2844 }
2845 break;
2846 case ClearPortFeature:{
2847 retval = u132_roothub_clearportfeature(u132,
2848 wValue, wIndex);
2849 if (retval)
2850 goto error;
2851 break;
2852 }
2853 case GetHubDescriptor:{
2854 retval = u132_roothub_descriptor(u132,
2855 (struct usb_hub_descriptor *)buf);
2856 if (retval)
2857 goto error;
2858 break;
2859 }
2860 case GetHubStatus:{
2861 retval = u132_roothub_status(u132,
2862 (__le32 *) buf);
2863 if (retval)
2864 goto error;
2865 break;
2866 }
2867 case GetPortStatus:{
2868 retval = u132_roothub_portstatus(u132,
2869 (__le32 *) buf, wIndex);
2870 if (retval)
2871 goto error;
2872 break;
2873 }
2874 case SetPortFeature:{
2875 retval = u132_roothub_setportfeature(u132,
2876 wValue, wIndex);
2877 if (retval)
2878 goto error;
2879 break;
2880 }
2881 default:
2882 goto stall;
2883 error:
2884 u132_disable(u132);
2885 u132->going = 1;
2886 break;
2887 stall:
2888 retval = -EPIPE;
2889 break;
2890 }
2891 mutex_unlock(&u132->sw_lock);
2892 return retval;
2893 }
2894}
2895
2896static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num)
2897{
2898 struct u132 *u132 = hcd_to_u132(hcd);
2899 if (u132->going > 1) {
2900 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2901 , u132->going);
2902 return -ENODEV;
2903 } else if (u132->going > 0) {
2904 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2905 return -ESHUTDOWN;
2906 } else
2907 return 0;
2908}
2909
2910
2911#ifdef CONFIG_PM
2912static int u132_bus_suspend(struct usb_hcd *hcd)
2913{
2914 struct u132 *u132 = hcd_to_u132(hcd);
2915 if (u132->going > 1) {
2916 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2917 , u132->going);
2918 return -ENODEV;
2919 } else if (u132->going > 0) {
2920 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2921 return -ESHUTDOWN;
2922 } else
2923 return 0;
2924}
2925
2926static int u132_bus_resume(struct usb_hcd *hcd)
2927{
2928 struct u132 *u132 = hcd_to_u132(hcd);
2929 if (u132->going > 1) {
2930 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2931 , u132->going);
2932 return -ENODEV;
2933 } else if (u132->going > 0) {
2934 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2935 return -ESHUTDOWN;
2936 } else
2937 return 0;
2938}
2939
2940#else
2941#define u132_bus_suspend NULL
2942#define u132_bus_resume NULL
2943#endif
2944static struct hc_driver u132_hc_driver = {
2945 .description = hcd_name,
2946 .hcd_priv_size = sizeof(struct u132),
2947 .irq = NULL,
2948 .flags = HCD_USB11 | HCD_MEMORY,
2949 .reset = u132_hcd_reset,
2950 .start = u132_hcd_start,
2951 .stop = u132_hcd_stop,
2952 .urb_enqueue = u132_urb_enqueue,
2953 .urb_dequeue = u132_urb_dequeue,
2954 .endpoint_disable = u132_endpoint_disable,
2955 .get_frame_number = u132_get_frame,
2956 .hub_status_data = u132_hub_status_data,
2957 .hub_control = u132_hub_control,
2958 .bus_suspend = u132_bus_suspend,
2959 .bus_resume = u132_bus_resume,
2960 .start_port_reset = u132_start_port_reset,
2961};
2962
2963/*
2964* This function may be called by the USB core whilst the "usb_all_devices_rwsem"
2965* is held for writing, thus this module must not call usb_remove_hcd()
2966* synchronously - but instead should immediately stop activity to the
2967* device and asynchronously call usb_remove_hcd()
2968*/
2969static int u132_remove(struct platform_device *pdev)
2970{
2971 struct usb_hcd *hcd = platform_get_drvdata(pdev);
2972 if (hcd) {
2973 struct u132 *u132 = hcd_to_u132(hcd);
2974 if (u132->going++ > 1) {
2975 dev_err(&u132->platform_dev->dev, "already being remove"
2976 "d\n");
2977 return -ENODEV;
2978 } else {
2979 int rings = MAX_U132_RINGS;
2980 int endps = MAX_U132_ENDPS;
2981 dev_err(&u132->platform_dev->dev, "removing device u132"
2982 ".%d\n", u132->sequence_num);
2983 msleep(100);
2984 mutex_lock(&u132->sw_lock);
2985 u132_monitor_cancel_work(u132);
2986 while (rings-- > 0) {
2987 struct u132_ring *ring = &u132->ring[rings];
2988 u132_ring_cancel_work(u132, ring);
2989 } while (endps-- > 0) {
2990 struct u132_endp *endp = u132->endp[endps];
2991 if (endp)
2992 u132_endp_cancel_work(u132, endp);
2993 }
2994 u132->going += 1;
2995 printk(KERN_INFO "removing device u132.%d\n",
2996 u132->sequence_num);
2997 mutex_unlock(&u132->sw_lock);
2998 usb_remove_hcd(hcd);
2999 u132_u132_put_kref(u132);
3000 return 0;
3001 }
3002 } else
3003 return 0;
3004}
3005
3006static void u132_initialise(struct u132 *u132, struct platform_device *pdev)
3007{
3008 int rings = MAX_U132_RINGS;
3009 int ports = MAX_U132_PORTS;
3010 int addrs = MAX_U132_ADDRS;
3011 int udevs = MAX_U132_UDEVS;
3012 int endps = MAX_U132_ENDPS;
3013 u132->board = dev_get_platdata(&pdev->dev);
3014 u132->platform_dev = pdev;
3015 u132->power = 0;
3016 u132->reset = 0;
3017 mutex_init(&u132->sw_lock);
3018 mutex_init(&u132->scheduler_lock);
3019 while (rings-- > 0) {
3020 struct u132_ring *ring = &u132->ring[rings];
3021 ring->u132 = u132;
3022 ring->number = rings + 1;
3023 ring->length = 0;
3024 ring->curr_endp = NULL;
3025 INIT_DELAYED_WORK(&ring->scheduler,
3026 u132_hcd_ring_work_scheduler);
3027 }
3028 mutex_lock(&u132->sw_lock);
3029 INIT_DELAYED_WORK(&u132->monitor, u132_hcd_monitor_work);
3030 while (ports-- > 0) {
3031 struct u132_port *port = &u132->port[ports];
3032 port->u132 = u132;
3033 port->reset = 0;
3034 port->enable = 0;
3035 port->power = 0;
3036 port->Status = 0;
3037 }
3038 while (addrs-- > 0) {
3039 struct u132_addr *addr = &u132->addr[addrs];
3040 addr->address = 0;
3041 }
3042 while (udevs-- > 0) {
3043 struct u132_udev *udev = &u132->udev[udevs];
3044 int i = ARRAY_SIZE(udev->endp_number_in);
3045 int o = ARRAY_SIZE(udev->endp_number_out);
3046 udev->usb_device = NULL;
3047 udev->udev_number = 0;
3048 udev->usb_addr = 0;
3049 udev->portnumber = 0;
3050 while (i-- > 0)
3051 udev->endp_number_in[i] = 0;
3052
3053 while (o-- > 0)
3054 udev->endp_number_out[o] = 0;
3055
3056 }
3057 while (endps-- > 0)
3058 u132->endp[endps] = NULL;
3059
3060 mutex_unlock(&u132->sw_lock);
3061}
3062
3063static int u132_probe(struct platform_device *pdev)
3064{
3065 struct usb_hcd *hcd;
3066 int retval;
3067 u32 control;
3068 u32 rh_a = -1;
3069 u32 num_ports;
3070
3071 msleep(100);
3072 if (u132_exiting > 0)
3073 return -ENODEV;
3074
3075 retval = ftdi_write_pcimem(pdev, intrdisable, OHCI_INTR_MIE);
3076 if (retval)
3077 return retval;
3078 retval = ftdi_read_pcimem(pdev, control, &control);
3079 if (retval)
3080 return retval;
3081 retval = ftdi_read_pcimem(pdev, roothub.a, &rh_a);
3082 if (retval)
3083 return retval;
3084 num_ports = rh_a & RH_A_NDP; /* refuse to confuse usbcore */
3085 if (pdev->dev.dma_mask)
3086 return -EINVAL;
3087
3088 hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, dev_name(&pdev->dev));
3089 if (!hcd) {
3090 printk(KERN_ERR "failed to create the usb hcd struct for U132\n"
3091 );
3092 ftdi_elan_gone_away(pdev);
3093 return -ENOMEM;
3094 } else {
3095 struct u132 *u132 = hcd_to_u132(hcd);
3096 retval = 0;
3097 hcd->rsrc_start = 0;
3098 mutex_lock(&u132_module_lock);
3099 list_add_tail(&u132->u132_list, &u132_static_list);
3100 u132->sequence_num = ++u132_instances;
3101 mutex_unlock(&u132_module_lock);
3102 u132_u132_init_kref(u132);
3103 u132_initialise(u132, pdev);
3104 hcd->product_desc = "ELAN U132 Host Controller";
3105 retval = usb_add_hcd(hcd, 0, 0);
3106 if (retval != 0) {
3107 dev_err(&u132->platform_dev->dev, "init error %d\n",
3108 retval);
3109 u132_u132_put_kref(u132);
3110 return retval;
3111 } else {
3112 device_wakeup_enable(hcd->self.controller);
3113 u132_monitor_queue_work(u132, 100);
3114 return 0;
3115 }
3116 }
3117}
3118
3119
3120#ifdef CONFIG_PM
3121/*
3122 * for this device there's no useful distinction between the controller
3123 * and its root hub.
3124 */
3125static int u132_suspend(struct platform_device *pdev, pm_message_t state)
3126{
3127 struct usb_hcd *hcd = platform_get_drvdata(pdev);
3128 struct u132 *u132 = hcd_to_u132(hcd);
3129 if (u132->going > 1) {
3130 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
3131 , u132->going);
3132 return -ENODEV;
3133 } else if (u132->going > 0) {
3134 dev_err(&u132->platform_dev->dev, "device is being removed\n");
3135 return -ESHUTDOWN;
3136 } else {
3137 int retval = 0, ports;
3138
3139 switch (state.event) {
3140 case PM_EVENT_FREEZE:
3141 retval = u132_bus_suspend(hcd);
3142 break;
3143 case PM_EVENT_SUSPEND:
3144 case PM_EVENT_HIBERNATE:
3145 ports = MAX_U132_PORTS;
3146 while (ports-- > 0) {
3147 port_power(u132, ports, 0);
3148 }
3149 break;
3150 }
3151 return retval;
3152 }
3153}
3154
3155static int u132_resume(struct platform_device *pdev)
3156{
3157 struct usb_hcd *hcd = platform_get_drvdata(pdev);
3158 struct u132 *u132 = hcd_to_u132(hcd);
3159 if (u132->going > 1) {
3160 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
3161 , u132->going);
3162 return -ENODEV;
3163 } else if (u132->going > 0) {
3164 dev_err(&u132->platform_dev->dev, "device is being removed\n");
3165 return -ESHUTDOWN;
3166 } else {
3167 int retval = 0;
3168 if (!u132->port[0].power) {
3169 int ports = MAX_U132_PORTS;
3170 while (ports-- > 0) {
3171 port_power(u132, ports, 1);
3172 }
3173 retval = 0;
3174 } else {
3175 retval = u132_bus_resume(hcd);
3176 }
3177 return retval;
3178 }
3179}
3180
3181#else
3182#define u132_suspend NULL
3183#define u132_resume NULL
3184#endif
3185/*
3186* this driver is loaded explicitly by ftdi_u132
3187*
3188* the platform_driver struct is static because it is per type of module
3189*/
3190static struct platform_driver u132_platform_driver = {
3191 .probe = u132_probe,
3192 .remove = u132_remove,
3193 .suspend = u132_suspend,
3194 .resume = u132_resume,
3195 .driver = {
3196 .name = hcd_name,
3197 },
3198};
3199static int __init u132_hcd_init(void)
3200{
3201 int retval;
3202 INIT_LIST_HEAD(&u132_static_list);
3203 u132_instances = 0;
3204 u132_exiting = 0;
3205 mutex_init(&u132_module_lock);
3206 if (usb_disabled())
3207 return -ENODEV;
3208 printk(KERN_INFO "driver %s\n", hcd_name);
3209 workqueue = create_singlethread_workqueue("u132");
3210 retval = platform_driver_register(&u132_platform_driver);
3211 return retval;
3212}
3213
3214
3215module_init(u132_hcd_init);
3216static void __exit u132_hcd_exit(void)
3217{
3218 struct u132 *u132;
3219 struct u132 *temp;
3220 mutex_lock(&u132_module_lock);
3221 u132_exiting += 1;
3222 mutex_unlock(&u132_module_lock);
3223 list_for_each_entry_safe(u132, temp, &u132_static_list, u132_list) {
3224 platform_device_unregister(u132->platform_dev);
3225 }
3226 platform_driver_unregister(&u132_platform_driver);
3227 printk(KERN_INFO "u132-hcd driver deregistered\n");
3228 wait_event(u132_hcd_wait, u132_instances == 0);
3229 flush_workqueue(workqueue);
3230 destroy_workqueue(workqueue);
3231}
3232
3233
3234module_exit(u132_hcd_exit);
3235MODULE_LICENSE("GPL");
3236MODULE_ALIAS("platform:u132_hcd");