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1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * amd5536.h -- header for AMD 5536 UDC high/full speed USB device controller
4 *
5 * Copyright (C) 2007 AMD (https://www.amd.com)
6 * Author: Thomas Dahlmann
7 */
8
9#ifndef AMD5536UDC_H
10#define AMD5536UDC_H
11
12/* debug control */
13/* #define UDC_VERBOSE */
14
15#include <linux/extcon.h>
16#include <linux/usb/ch9.h>
17#include <linux/usb/gadget.h>
18
19/* various constants */
20#define UDC_RDE_TIMER_SECONDS 1
21#define UDC_RDE_TIMER_DIV 10
22#define UDC_POLLSTALL_TIMER_USECONDS 500
23
24/* Hs AMD5536 chip rev. */
25#define UDC_HSA0_REV 1
26#define UDC_HSB1_REV 2
27
28/* Broadcom chip rev. */
29#define UDC_BCM_REV 10
30
31/*
32 * SETUP usb commands
33 * needed, because some SETUP's are handled in hw, but must be passed to
34 * gadget driver above
35 * SET_CONFIG
36 */
37#define UDC_SETCONFIG_DWORD0 0x00000900
38#define UDC_SETCONFIG_DWORD0_VALUE_MASK 0xffff0000
39#define UDC_SETCONFIG_DWORD0_VALUE_OFS 16
40
41#define UDC_SETCONFIG_DWORD1 0x00000000
42
43/* SET_INTERFACE */
44#define UDC_SETINTF_DWORD0 0x00000b00
45#define UDC_SETINTF_DWORD0_ALT_MASK 0xffff0000
46#define UDC_SETINTF_DWORD0_ALT_OFS 16
47
48#define UDC_SETINTF_DWORD1 0x00000000
49#define UDC_SETINTF_DWORD1_INTF_MASK 0x0000ffff
50#define UDC_SETINTF_DWORD1_INTF_OFS 0
51
52/* Mass storage reset */
53#define UDC_MSCRES_DWORD0 0x0000ff21
54#define UDC_MSCRES_DWORD1 0x00000000
55
56/* Global CSR's -------------------------------------------------------------*/
57#define UDC_CSR_ADDR 0x500
58
59/* EP NE bits */
60/* EP number */
61#define UDC_CSR_NE_NUM_MASK 0x0000000f
62#define UDC_CSR_NE_NUM_OFS 0
63/* EP direction */
64#define UDC_CSR_NE_DIR_MASK 0x00000010
65#define UDC_CSR_NE_DIR_OFS 4
66/* EP type */
67#define UDC_CSR_NE_TYPE_MASK 0x00000060
68#define UDC_CSR_NE_TYPE_OFS 5
69/* EP config number */
70#define UDC_CSR_NE_CFG_MASK 0x00000780
71#define UDC_CSR_NE_CFG_OFS 7
72/* EP interface number */
73#define UDC_CSR_NE_INTF_MASK 0x00007800
74#define UDC_CSR_NE_INTF_OFS 11
75/* EP alt setting */
76#define UDC_CSR_NE_ALT_MASK 0x00078000
77#define UDC_CSR_NE_ALT_OFS 15
78
79/* max pkt */
80#define UDC_CSR_NE_MAX_PKT_MASK 0x3ff80000
81#define UDC_CSR_NE_MAX_PKT_OFS 19
82
83/* Device Config Register ---------------------------------------------------*/
84#define UDC_DEVCFG_ADDR 0x400
85
86#define UDC_DEVCFG_SOFTRESET 31
87#define UDC_DEVCFG_HNPSFEN 30
88#define UDC_DEVCFG_DMARST 29
89#define UDC_DEVCFG_SET_DESC 18
90#define UDC_DEVCFG_CSR_PRG 17
91#define UDC_DEVCFG_STATUS 7
92#define UDC_DEVCFG_DIR 6
93#define UDC_DEVCFG_PI 5
94#define UDC_DEVCFG_SS 4
95#define UDC_DEVCFG_SP 3
96#define UDC_DEVCFG_RWKP 2
97
98#define UDC_DEVCFG_SPD_MASK 0x3
99#define UDC_DEVCFG_SPD_OFS 0
100#define UDC_DEVCFG_SPD_HS 0x0
101#define UDC_DEVCFG_SPD_FS 0x1
102#define UDC_DEVCFG_SPD_LS 0x2
103/*#define UDC_DEVCFG_SPD_FS 0x3*/
104
105
106/* Device Control Register --------------------------------------------------*/
107#define UDC_DEVCTL_ADDR 0x404
108
109#define UDC_DEVCTL_THLEN_MASK 0xff000000
110#define UDC_DEVCTL_THLEN_OFS 24
111
112#define UDC_DEVCTL_BRLEN_MASK 0x00ff0000
113#define UDC_DEVCTL_BRLEN_OFS 16
114
115#define UDC_DEVCTL_SRX_FLUSH 14
116#define UDC_DEVCTL_CSR_DONE 13
117#define UDC_DEVCTL_DEVNAK 12
118#define UDC_DEVCTL_SD 10
119#define UDC_DEVCTL_MODE 9
120#define UDC_DEVCTL_BREN 8
121#define UDC_DEVCTL_THE 7
122#define UDC_DEVCTL_BF 6
123#define UDC_DEVCTL_BE 5
124#define UDC_DEVCTL_DU 4
125#define UDC_DEVCTL_TDE 3
126#define UDC_DEVCTL_RDE 2
127#define UDC_DEVCTL_RES 0
128
129
130/* Device Status Register ---------------------------------------------------*/
131#define UDC_DEVSTS_ADDR 0x408
132
133#define UDC_DEVSTS_TS_MASK 0xfffc0000
134#define UDC_DEVSTS_TS_OFS 18
135
136#define UDC_DEVSTS_SESSVLD 17
137#define UDC_DEVSTS_PHY_ERROR 16
138#define UDC_DEVSTS_RXFIFO_EMPTY 15
139
140#define UDC_DEVSTS_ENUM_SPEED_MASK 0x00006000
141#define UDC_DEVSTS_ENUM_SPEED_OFS 13
142#define UDC_DEVSTS_ENUM_SPEED_FULL 1
143#define UDC_DEVSTS_ENUM_SPEED_HIGH 0
144
145#define UDC_DEVSTS_SUSP 12
146
147#define UDC_DEVSTS_ALT_MASK 0x00000f00
148#define UDC_DEVSTS_ALT_OFS 8
149
150#define UDC_DEVSTS_INTF_MASK 0x000000f0
151#define UDC_DEVSTS_INTF_OFS 4
152
153#define UDC_DEVSTS_CFG_MASK 0x0000000f
154#define UDC_DEVSTS_CFG_OFS 0
155
156
157/* Device Interrupt Register ------------------------------------------------*/
158#define UDC_DEVINT_ADDR 0x40c
159
160#define UDC_DEVINT_SVC 7
161#define UDC_DEVINT_ENUM 6
162#define UDC_DEVINT_SOF 5
163#define UDC_DEVINT_US 4
164#define UDC_DEVINT_UR 3
165#define UDC_DEVINT_ES 2
166#define UDC_DEVINT_SI 1
167#define UDC_DEVINT_SC 0
168
169/* Device Interrupt Mask Register -------------------------------------------*/
170#define UDC_DEVINT_MSK_ADDR 0x410
171
172#define UDC_DEVINT_MSK 0x7f
173
174/* Endpoint Interrupt Register ----------------------------------------------*/
175#define UDC_EPINT_ADDR 0x414
176
177#define UDC_EPINT_OUT_MASK 0xffff0000
178#define UDC_EPINT_OUT_OFS 16
179#define UDC_EPINT_IN_MASK 0x0000ffff
180#define UDC_EPINT_IN_OFS 0
181
182#define UDC_EPINT_IN_EP0 0
183#define UDC_EPINT_IN_EP1 1
184#define UDC_EPINT_IN_EP2 2
185#define UDC_EPINT_IN_EP3 3
186#define UDC_EPINT_OUT_EP0 16
187#define UDC_EPINT_OUT_EP1 17
188#define UDC_EPINT_OUT_EP2 18
189#define UDC_EPINT_OUT_EP3 19
190
191#define UDC_EPINT_EP0_ENABLE_MSK 0x001e001e
192
193/* Endpoint Interrupt Mask Register -----------------------------------------*/
194#define UDC_EPINT_MSK_ADDR 0x418
195
196#define UDC_EPINT_OUT_MSK_MASK 0xffff0000
197#define UDC_EPINT_OUT_MSK_OFS 16
198#define UDC_EPINT_IN_MSK_MASK 0x0000ffff
199#define UDC_EPINT_IN_MSK_OFS 0
200
201#define UDC_EPINT_MSK_DISABLE_ALL 0xffffffff
202/* mask non-EP0 endpoints */
203#define UDC_EPDATAINT_MSK_DISABLE 0xfffefffe
204/* mask all dev interrupts */
205#define UDC_DEV_MSK_DISABLE 0x7f
206
207/* Endpoint-specific CSR's --------------------------------------------------*/
208#define UDC_EPREGS_ADDR 0x0
209#define UDC_EPIN_REGS_ADDR 0x0
210#define UDC_EPOUT_REGS_ADDR 0x200
211
212#define UDC_EPCTL_ADDR 0x0
213
214#define UDC_EPCTL_RRDY 9
215#define UDC_EPCTL_CNAK 8
216#define UDC_EPCTL_SNAK 7
217#define UDC_EPCTL_NAK 6
218
219#define UDC_EPCTL_ET_MASK 0x00000030
220#define UDC_EPCTL_ET_OFS 4
221#define UDC_EPCTL_ET_CONTROL 0
222#define UDC_EPCTL_ET_ISO 1
223#define UDC_EPCTL_ET_BULK 2
224#define UDC_EPCTL_ET_INTERRUPT 3
225
226#define UDC_EPCTL_P 3
227#define UDC_EPCTL_SN 2
228#define UDC_EPCTL_F 1
229#define UDC_EPCTL_S 0
230
231/* Endpoint Status Registers ------------------------------------------------*/
232#define UDC_EPSTS_ADDR 0x4
233
234#define UDC_EPSTS_RX_PKT_SIZE_MASK 0x007ff800
235#define UDC_EPSTS_RX_PKT_SIZE_OFS 11
236
237#define UDC_EPSTS_TDC 10
238#define UDC_EPSTS_HE 9
239#define UDC_EPSTS_BNA 7
240#define UDC_EPSTS_IN 6
241
242#define UDC_EPSTS_OUT_MASK 0x00000030
243#define UDC_EPSTS_OUT_OFS 4
244#define UDC_EPSTS_OUT_DATA 1
245#define UDC_EPSTS_OUT_DATA_CLEAR 0x10
246#define UDC_EPSTS_OUT_SETUP 2
247#define UDC_EPSTS_OUT_SETUP_CLEAR 0x20
248#define UDC_EPSTS_OUT_CLEAR 0x30
249
250/* Endpoint Buffer Size IN/ Receive Packet Frame Number OUT Registers ------*/
251#define UDC_EPIN_BUFF_SIZE_ADDR 0x8
252#define UDC_EPOUT_FRAME_NUMBER_ADDR 0x8
253
254#define UDC_EPIN_BUFF_SIZE_MASK 0x0000ffff
255#define UDC_EPIN_BUFF_SIZE_OFS 0
256/* EP0in txfifo = 128 bytes*/
257#define UDC_EPIN0_BUFF_SIZE 32
258/* EP0in fullspeed txfifo = 128 bytes*/
259#define UDC_FS_EPIN0_BUFF_SIZE 32
260
261/* fifo size mult = fifo size / max packet */
262#define UDC_EPIN_BUFF_SIZE_MULT 2
263
264/* EPin data fifo size = 1024 bytes DOUBLE BUFFERING */
265#define UDC_EPIN_BUFF_SIZE 256
266/* EPin small INT data fifo size = 128 bytes */
267#define UDC_EPIN_SMALLINT_BUFF_SIZE 32
268
269/* EPin fullspeed data fifo size = 128 bytes DOUBLE BUFFERING */
270#define UDC_FS_EPIN_BUFF_SIZE 32
271
272#define UDC_EPOUT_FRAME_NUMBER_MASK 0x0000ffff
273#define UDC_EPOUT_FRAME_NUMBER_OFS 0
274
275/* Endpoint Buffer Size OUT/Max Packet Size Registers -----------------------*/
276#define UDC_EPOUT_BUFF_SIZE_ADDR 0x0c
277#define UDC_EP_MAX_PKT_SIZE_ADDR 0x0c
278
279#define UDC_EPOUT_BUFF_SIZE_MASK 0xffff0000
280#define UDC_EPOUT_BUFF_SIZE_OFS 16
281#define UDC_EP_MAX_PKT_SIZE_MASK 0x0000ffff
282#define UDC_EP_MAX_PKT_SIZE_OFS 0
283/* EP0in max packet size = 64 bytes */
284#define UDC_EP0IN_MAX_PKT_SIZE 64
285/* EP0out max packet size = 64 bytes */
286#define UDC_EP0OUT_MAX_PKT_SIZE 64
287/* EP0in fullspeed max packet size = 64 bytes */
288#define UDC_FS_EP0IN_MAX_PKT_SIZE 64
289/* EP0out fullspeed max packet size = 64 bytes */
290#define UDC_FS_EP0OUT_MAX_PKT_SIZE 64
291
292/*
293 * Endpoint dma descriptors ------------------------------------------------
294 *
295 * Setup data, Status dword
296 */
297#define UDC_DMA_STP_STS_CFG_MASK 0x0fff0000
298#define UDC_DMA_STP_STS_CFG_OFS 16
299#define UDC_DMA_STP_STS_CFG_ALT_MASK 0x000f0000
300#define UDC_DMA_STP_STS_CFG_ALT_OFS 16
301#define UDC_DMA_STP_STS_CFG_INTF_MASK 0x00f00000
302#define UDC_DMA_STP_STS_CFG_INTF_OFS 20
303#define UDC_DMA_STP_STS_CFG_NUM_MASK 0x0f000000
304#define UDC_DMA_STP_STS_CFG_NUM_OFS 24
305#define UDC_DMA_STP_STS_RX_MASK 0x30000000
306#define UDC_DMA_STP_STS_RX_OFS 28
307#define UDC_DMA_STP_STS_BS_MASK 0xc0000000
308#define UDC_DMA_STP_STS_BS_OFS 30
309#define UDC_DMA_STP_STS_BS_HOST_READY 0
310#define UDC_DMA_STP_STS_BS_DMA_BUSY 1
311#define UDC_DMA_STP_STS_BS_DMA_DONE 2
312#define UDC_DMA_STP_STS_BS_HOST_BUSY 3
313/* IN data, Status dword */
314#define UDC_DMA_IN_STS_TXBYTES_MASK 0x0000ffff
315#define UDC_DMA_IN_STS_TXBYTES_OFS 0
316#define UDC_DMA_IN_STS_FRAMENUM_MASK 0x07ff0000
317#define UDC_DMA_IN_STS_FRAMENUM_OFS 0
318#define UDC_DMA_IN_STS_L 27
319#define UDC_DMA_IN_STS_TX_MASK 0x30000000
320#define UDC_DMA_IN_STS_TX_OFS 28
321#define UDC_DMA_IN_STS_BS_MASK 0xc0000000
322#define UDC_DMA_IN_STS_BS_OFS 30
323#define UDC_DMA_IN_STS_BS_HOST_READY 0
324#define UDC_DMA_IN_STS_BS_DMA_BUSY 1
325#define UDC_DMA_IN_STS_BS_DMA_DONE 2
326#define UDC_DMA_IN_STS_BS_HOST_BUSY 3
327/* OUT data, Status dword */
328#define UDC_DMA_OUT_STS_RXBYTES_MASK 0x0000ffff
329#define UDC_DMA_OUT_STS_RXBYTES_OFS 0
330#define UDC_DMA_OUT_STS_FRAMENUM_MASK 0x07ff0000
331#define UDC_DMA_OUT_STS_FRAMENUM_OFS 0
332#define UDC_DMA_OUT_STS_L 27
333#define UDC_DMA_OUT_STS_RX_MASK 0x30000000
334#define UDC_DMA_OUT_STS_RX_OFS 28
335#define UDC_DMA_OUT_STS_BS_MASK 0xc0000000
336#define UDC_DMA_OUT_STS_BS_OFS 30
337#define UDC_DMA_OUT_STS_BS_HOST_READY 0
338#define UDC_DMA_OUT_STS_BS_DMA_BUSY 1
339#define UDC_DMA_OUT_STS_BS_DMA_DONE 2
340#define UDC_DMA_OUT_STS_BS_HOST_BUSY 3
341/* max ep0in packet */
342#define UDC_EP0IN_MAXPACKET 1000
343/* max dma packet */
344#define UDC_DMA_MAXPACKET 65536
345
346/* un-usable DMA address */
347#define DMA_DONT_USE (~(dma_addr_t) 0 )
348
349/* other Endpoint register addresses and values-----------------------------*/
350#define UDC_EP_SUBPTR_ADDR 0x10
351#define UDC_EP_DESPTR_ADDR 0x14
352#define UDC_EP_WRITE_CONFIRM_ADDR 0x1c
353
354/* EP number as layouted in AHB space */
355#define UDC_EP_NUM 32
356#define UDC_EPIN_NUM 16
357#define UDC_EPIN_NUM_USED 5
358#define UDC_EPOUT_NUM 16
359/* EP number of EP's really used = EP0 + 8 data EP's */
360#define UDC_USED_EP_NUM 9
361/* UDC CSR regs are aligned but AHB regs not - offset for OUT EP's */
362#define UDC_CSR_EP_OUT_IX_OFS 12
363
364#define UDC_EP0OUT_IX 16
365#define UDC_EP0IN_IX 0
366
367/* Rx fifo address and size = 1k -------------------------------------------*/
368#define UDC_RXFIFO_ADDR 0x800
369#define UDC_RXFIFO_SIZE 0x400
370
371/* Tx fifo address and size = 1.5k -----------------------------------------*/
372#define UDC_TXFIFO_ADDR 0xc00
373#define UDC_TXFIFO_SIZE 0x600
374
375/* default data endpoints --------------------------------------------------*/
376#define UDC_EPIN_STATUS_IX 1
377#define UDC_EPIN_IX 2
378#define UDC_EPOUT_IX 18
379
380/* general constants -------------------------------------------------------*/
381#define UDC_DWORD_BYTES 4
382#define UDC_BITS_PER_BYTE_SHIFT 3
383#define UDC_BYTE_MASK 0xff
384#define UDC_BITS_PER_BYTE 8
385
386/*---------------------------------------------------------------------------*/
387/* UDC CSR's */
388struct udc_csrs {
389
390 /* sca - setup command address */
391 u32 sca;
392
393 /* ep ne's */
394 u32 ne[UDC_USED_EP_NUM];
395} __attribute__ ((packed));
396
397/* AHB subsystem CSR registers */
398struct udc_regs {
399
400 /* device configuration */
401 u32 cfg;
402
403 /* device control */
404 u32 ctl;
405
406 /* device status */
407 u32 sts;
408
409 /* device interrupt */
410 u32 irqsts;
411
412 /* device interrupt mask */
413 u32 irqmsk;
414
415 /* endpoint interrupt */
416 u32 ep_irqsts;
417
418 /* endpoint interrupt mask */
419 u32 ep_irqmsk;
420} __attribute__ ((packed));
421
422/* endpoint specific registers */
423struct udc_ep_regs {
424
425 /* endpoint control */
426 u32 ctl;
427
428 /* endpoint status */
429 u32 sts;
430
431 /* endpoint buffer size in/ receive packet frame number out */
432 u32 bufin_framenum;
433
434 /* endpoint buffer size out/max packet size */
435 u32 bufout_maxpkt;
436
437 /* endpoint setup buffer pointer */
438 u32 subptr;
439
440 /* endpoint data descriptor pointer */
441 u32 desptr;
442
443 /* reserved */
444 u32 reserved;
445
446 /* write/read confirmation */
447 u32 confirm;
448
449} __attribute__ ((packed));
450
451/* control data DMA desc */
452struct udc_stp_dma {
453 /* status quadlet */
454 u32 status;
455 /* reserved */
456 u32 _reserved;
457 /* first setup word */
458 u32 data12;
459 /* second setup word */
460 u32 data34;
461} __attribute__ ((aligned (16)));
462
463/* normal data DMA desc */
464struct udc_data_dma {
465 /* status quadlet */
466 u32 status;
467 /* reserved */
468 u32 _reserved;
469 /* buffer pointer */
470 u32 bufptr;
471 /* next descriptor pointer */
472 u32 next;
473} __attribute__ ((aligned (16)));
474
475/* request packet */
476struct udc_request {
477 /* embedded gadget ep */
478 struct usb_request req;
479
480 /* flags */
481 unsigned dma_going : 1,
482 dma_done : 1;
483 /* phys. address */
484 dma_addr_t td_phys;
485 /* first dma desc. of chain */
486 struct udc_data_dma *td_data;
487 /* last dma desc. of chain */
488 struct udc_data_dma *td_data_last;
489 struct list_head queue;
490
491 /* chain length */
492 unsigned chain_len;
493
494};
495
496/* UDC specific endpoint parameters */
497struct udc_ep {
498 struct usb_ep ep;
499 struct udc_ep_regs __iomem *regs;
500 u32 __iomem *txfifo;
501 u32 __iomem *dma;
502 dma_addr_t td_phys;
503 dma_addr_t td_stp_dma;
504 struct udc_stp_dma *td_stp;
505 struct udc_data_dma *td;
506 /* temp request */
507 struct udc_request *req;
508 unsigned req_used;
509 unsigned req_completed;
510 /* dummy DMA desc for BNA dummy */
511 struct udc_request *bna_dummy_req;
512 unsigned bna_occurred;
513
514 /* NAK state */
515 unsigned naking;
516
517 struct udc *dev;
518
519 /* queue for requests */
520 struct list_head queue;
521 unsigned halted;
522 unsigned cancel_transfer;
523 unsigned num : 5,
524 fifo_depth : 14,
525 in : 1;
526};
527
528/* device struct */
529struct udc {
530 struct usb_gadget gadget;
531 spinlock_t lock; /* protects all state */
532 /* all endpoints */
533 struct udc_ep ep[UDC_EP_NUM];
534 struct usb_gadget_driver *driver;
535 /* operational flags */
536 unsigned stall_ep0in : 1,
537 waiting_zlp_ack_ep0in : 1,
538 set_cfg_not_acked : 1,
539 data_ep_enabled : 1,
540 data_ep_queued : 1,
541 sys_suspended : 1,
542 connected;
543
544 u16 chiprev;
545
546 /* registers */
547 struct pci_dev *pdev;
548 struct udc_csrs __iomem *csr;
549 struct udc_regs __iomem *regs;
550 struct udc_ep_regs __iomem *ep_regs;
551 u32 __iomem *rxfifo;
552 u32 __iomem *txfifo;
553
554 /* DMA desc pools */
555 struct dma_pool *data_requests;
556 struct dma_pool *stp_requests;
557
558 /* device data */
559 unsigned long phys_addr;
560 void __iomem *virt_addr;
561 unsigned irq;
562
563 /* states */
564 u16 cur_config;
565 u16 cur_intf;
566 u16 cur_alt;
567
568 /* for platform device and extcon support */
569 struct device *dev;
570 struct phy *udc_phy;
571 struct extcon_dev *edev;
572 struct extcon_specific_cable_nb extcon_nb;
573 struct notifier_block nb;
574 struct delayed_work drd_work;
575 u32 conn_type;
576};
577
578#define to_amd5536_udc(g) (container_of((g), struct udc, gadget))
579
580/* setup request data */
581union udc_setup_data {
582 u32 data[2];
583 struct usb_ctrlrequest request;
584};
585
586/* Function declarations */
587int udc_enable_dev_setup_interrupts(struct udc *dev);
588int udc_mask_unused_interrupts(struct udc *dev);
589irqreturn_t udc_irq(int irq, void *pdev);
590void gadget_release(struct device *pdev);
591void empty_req_queue(struct udc_ep *ep);
592void udc_basic_init(struct udc *dev);
593void free_dma_pools(struct udc *dev);
594int init_dma_pools(struct udc *dev);
595void udc_remove(struct udc *dev);
596int udc_probe(struct udc *dev);
597
598/* DMA usage flag */
599static bool use_dma = 1;
600/* packet per buffer dma */
601static bool use_dma_ppb = 1;
602/* with per descr. update */
603static bool use_dma_ppb_du;
604/* full speed only mode */
605static bool use_fullspeed;
606
607/* module parameters */
608module_param(use_dma, bool, S_IRUGO);
609MODULE_PARM_DESC(use_dma, "true for DMA");
610module_param(use_dma_ppb, bool, S_IRUGO);
611MODULE_PARM_DESC(use_dma_ppb, "true for DMA in packet per buffer mode");
612module_param(use_dma_ppb_du, bool, S_IRUGO);
613MODULE_PARM_DESC(use_dma_ppb_du,
614 "true for DMA in packet per buffer mode with descriptor update");
615module_param(use_fullspeed, bool, S_IRUGO);
616MODULE_PARM_DESC(use_fullspeed, "true for fullspeed only");
617/*
618 *---------------------------------------------------------------------------
619 * SET and GET bitfields in u32 values
620 * via constants for mask/offset:
621 * <bit_field_stub_name> is the text between
622 * UDC_ and _MASK|_OFS of appropriate
623 * constant
624 *
625 * set bitfield value in u32 u32Val
626 */
627#define AMD_ADDBITS(u32Val, bitfield_val, bitfield_stub_name) \
628 (((u32Val) & (((u32) ~((u32) bitfield_stub_name##_MASK)))) \
629 | (((bitfield_val) << ((u32) bitfield_stub_name##_OFS)) \
630 & ((u32) bitfield_stub_name##_MASK)))
631
632/*
633 * set bitfield value in zero-initialized u32 u32Val
634 * => bitfield bits in u32Val are all zero
635 */
636#define AMD_INIT_SETBITS(u32Val, bitfield_val, bitfield_stub_name) \
637 ((u32Val) \
638 | (((bitfield_val) << ((u32) bitfield_stub_name##_OFS)) \
639 & ((u32) bitfield_stub_name##_MASK)))
640
641/* get bitfield value from u32 u32Val */
642#define AMD_GETBITS(u32Val, bitfield_stub_name) \
643 ((u32Val & ((u32) bitfield_stub_name##_MASK)) \
644 >> ((u32) bitfield_stub_name##_OFS))
645
646/* SET and GET bits in u32 values ------------------------------------------*/
647#define AMD_BIT(bit_stub_name) (1 << bit_stub_name)
648#define AMD_UNMASK_BIT(bit_stub_name) (~AMD_BIT(bit_stub_name))
649#define AMD_CLEAR_BIT(bit_stub_name) (~AMD_BIT(bit_stub_name))
650
651/* debug macros ------------------------------------------------------------*/
652
653#define DBG(udc , args...) dev_dbg(udc->dev, args)
654
655#ifdef UDC_VERBOSE
656#define VDBG DBG
657#else
658#define VDBG(udc , args...) do {} while (0)
659#endif
660
661#endif /* #ifdef AMD5536UDC_H */
1/*
2 * amd5536.h -- header for AMD 5536 UDC high/full speed USB device controller
3 *
4 * Copyright (C) 2007 AMD (http://www.amd.com)
5 * Author: Thomas Dahlmann
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 */
12
13#ifndef AMD5536UDC_H
14#define AMD5536UDC_H
15
16/* various constants */
17#define UDC_RDE_TIMER_SECONDS 1
18#define UDC_RDE_TIMER_DIV 10
19#define UDC_POLLSTALL_TIMER_USECONDS 500
20
21/* Hs AMD5536 chip rev. */
22#define UDC_HSA0_REV 1
23#define UDC_HSB1_REV 2
24
25/*
26 * SETUP usb commands
27 * needed, because some SETUP's are handled in hw, but must be passed to
28 * gadget driver above
29 * SET_CONFIG
30 */
31#define UDC_SETCONFIG_DWORD0 0x00000900
32#define UDC_SETCONFIG_DWORD0_VALUE_MASK 0xffff0000
33#define UDC_SETCONFIG_DWORD0_VALUE_OFS 16
34
35#define UDC_SETCONFIG_DWORD1 0x00000000
36
37/* SET_INTERFACE */
38#define UDC_SETINTF_DWORD0 0x00000b00
39#define UDC_SETINTF_DWORD0_ALT_MASK 0xffff0000
40#define UDC_SETINTF_DWORD0_ALT_OFS 16
41
42#define UDC_SETINTF_DWORD1 0x00000000
43#define UDC_SETINTF_DWORD1_INTF_MASK 0x0000ffff
44#define UDC_SETINTF_DWORD1_INTF_OFS 0
45
46/* Mass storage reset */
47#define UDC_MSCRES_DWORD0 0x0000ff21
48#define UDC_MSCRES_DWORD1 0x00000000
49
50/* Global CSR's -------------------------------------------------------------*/
51#define UDC_CSR_ADDR 0x500
52
53/* EP NE bits */
54/* EP number */
55#define UDC_CSR_NE_NUM_MASK 0x0000000f
56#define UDC_CSR_NE_NUM_OFS 0
57/* EP direction */
58#define UDC_CSR_NE_DIR_MASK 0x00000010
59#define UDC_CSR_NE_DIR_OFS 4
60/* EP type */
61#define UDC_CSR_NE_TYPE_MASK 0x00000060
62#define UDC_CSR_NE_TYPE_OFS 5
63/* EP config number */
64#define UDC_CSR_NE_CFG_MASK 0x00000780
65#define UDC_CSR_NE_CFG_OFS 7
66/* EP interface number */
67#define UDC_CSR_NE_INTF_MASK 0x00007800
68#define UDC_CSR_NE_INTF_OFS 11
69/* EP alt setting */
70#define UDC_CSR_NE_ALT_MASK 0x00078000
71#define UDC_CSR_NE_ALT_OFS 15
72
73/* max pkt */
74#define UDC_CSR_NE_MAX_PKT_MASK 0x3ff80000
75#define UDC_CSR_NE_MAX_PKT_OFS 19
76
77/* Device Config Register ---------------------------------------------------*/
78#define UDC_DEVCFG_ADDR 0x400
79
80#define UDC_DEVCFG_SOFTRESET 31
81#define UDC_DEVCFG_HNPSFEN 30
82#define UDC_DEVCFG_DMARST 29
83#define UDC_DEVCFG_SET_DESC 18
84#define UDC_DEVCFG_CSR_PRG 17
85#define UDC_DEVCFG_STATUS 7
86#define UDC_DEVCFG_DIR 6
87#define UDC_DEVCFG_PI 5
88#define UDC_DEVCFG_SS 4
89#define UDC_DEVCFG_SP 3
90#define UDC_DEVCFG_RWKP 2
91
92#define UDC_DEVCFG_SPD_MASK 0x3
93#define UDC_DEVCFG_SPD_OFS 0
94#define UDC_DEVCFG_SPD_HS 0x0
95#define UDC_DEVCFG_SPD_FS 0x1
96#define UDC_DEVCFG_SPD_LS 0x2
97/*#define UDC_DEVCFG_SPD_FS 0x3*/
98
99
100/* Device Control Register --------------------------------------------------*/
101#define UDC_DEVCTL_ADDR 0x404
102
103#define UDC_DEVCTL_THLEN_MASK 0xff000000
104#define UDC_DEVCTL_THLEN_OFS 24
105
106#define UDC_DEVCTL_BRLEN_MASK 0x00ff0000
107#define UDC_DEVCTL_BRLEN_OFS 16
108
109#define UDC_DEVCTL_CSR_DONE 13
110#define UDC_DEVCTL_DEVNAK 12
111#define UDC_DEVCTL_SD 10
112#define UDC_DEVCTL_MODE 9
113#define UDC_DEVCTL_BREN 8
114#define UDC_DEVCTL_THE 7
115#define UDC_DEVCTL_BF 6
116#define UDC_DEVCTL_BE 5
117#define UDC_DEVCTL_DU 4
118#define UDC_DEVCTL_TDE 3
119#define UDC_DEVCTL_RDE 2
120#define UDC_DEVCTL_RES 0
121
122
123/* Device Status Register ---------------------------------------------------*/
124#define UDC_DEVSTS_ADDR 0x408
125
126#define UDC_DEVSTS_TS_MASK 0xfffc0000
127#define UDC_DEVSTS_TS_OFS 18
128
129#define UDC_DEVSTS_SESSVLD 17
130#define UDC_DEVSTS_PHY_ERROR 16
131#define UDC_DEVSTS_RXFIFO_EMPTY 15
132
133#define UDC_DEVSTS_ENUM_SPEED_MASK 0x00006000
134#define UDC_DEVSTS_ENUM_SPEED_OFS 13
135#define UDC_DEVSTS_ENUM_SPEED_FULL 1
136#define UDC_DEVSTS_ENUM_SPEED_HIGH 0
137
138#define UDC_DEVSTS_SUSP 12
139
140#define UDC_DEVSTS_ALT_MASK 0x00000f00
141#define UDC_DEVSTS_ALT_OFS 8
142
143#define UDC_DEVSTS_INTF_MASK 0x000000f0
144#define UDC_DEVSTS_INTF_OFS 4
145
146#define UDC_DEVSTS_CFG_MASK 0x0000000f
147#define UDC_DEVSTS_CFG_OFS 0
148
149
150/* Device Interrupt Register ------------------------------------------------*/
151#define UDC_DEVINT_ADDR 0x40c
152
153#define UDC_DEVINT_SVC 7
154#define UDC_DEVINT_ENUM 6
155#define UDC_DEVINT_SOF 5
156#define UDC_DEVINT_US 4
157#define UDC_DEVINT_UR 3
158#define UDC_DEVINT_ES 2
159#define UDC_DEVINT_SI 1
160#define UDC_DEVINT_SC 0
161
162/* Device Interrupt Mask Register -------------------------------------------*/
163#define UDC_DEVINT_MSK_ADDR 0x410
164
165#define UDC_DEVINT_MSK 0x7f
166
167/* Endpoint Interrupt Register ----------------------------------------------*/
168#define UDC_EPINT_ADDR 0x414
169
170#define UDC_EPINT_OUT_MASK 0xffff0000
171#define UDC_EPINT_OUT_OFS 16
172#define UDC_EPINT_IN_MASK 0x0000ffff
173#define UDC_EPINT_IN_OFS 0
174
175#define UDC_EPINT_IN_EP0 0
176#define UDC_EPINT_IN_EP1 1
177#define UDC_EPINT_IN_EP2 2
178#define UDC_EPINT_IN_EP3 3
179#define UDC_EPINT_OUT_EP0 16
180#define UDC_EPINT_OUT_EP1 17
181#define UDC_EPINT_OUT_EP2 18
182#define UDC_EPINT_OUT_EP3 19
183
184#define UDC_EPINT_EP0_ENABLE_MSK 0x001e001e
185
186/* Endpoint Interrupt Mask Register -----------------------------------------*/
187#define UDC_EPINT_MSK_ADDR 0x418
188
189#define UDC_EPINT_OUT_MSK_MASK 0xffff0000
190#define UDC_EPINT_OUT_MSK_OFS 16
191#define UDC_EPINT_IN_MSK_MASK 0x0000ffff
192#define UDC_EPINT_IN_MSK_OFS 0
193
194#define UDC_EPINT_MSK_DISABLE_ALL 0xffffffff
195/* mask non-EP0 endpoints */
196#define UDC_EPDATAINT_MSK_DISABLE 0xfffefffe
197/* mask all dev interrupts */
198#define UDC_DEV_MSK_DISABLE 0x7f
199
200/* Endpoint-specific CSR's --------------------------------------------------*/
201#define UDC_EPREGS_ADDR 0x0
202#define UDC_EPIN_REGS_ADDR 0x0
203#define UDC_EPOUT_REGS_ADDR 0x200
204
205#define UDC_EPCTL_ADDR 0x0
206
207#define UDC_EPCTL_RRDY 9
208#define UDC_EPCTL_CNAK 8
209#define UDC_EPCTL_SNAK 7
210#define UDC_EPCTL_NAK 6
211
212#define UDC_EPCTL_ET_MASK 0x00000030
213#define UDC_EPCTL_ET_OFS 4
214#define UDC_EPCTL_ET_CONTROL 0
215#define UDC_EPCTL_ET_ISO 1
216#define UDC_EPCTL_ET_BULK 2
217#define UDC_EPCTL_ET_INTERRUPT 3
218
219#define UDC_EPCTL_P 3
220#define UDC_EPCTL_SN 2
221#define UDC_EPCTL_F 1
222#define UDC_EPCTL_S 0
223
224/* Endpoint Status Registers ------------------------------------------------*/
225#define UDC_EPSTS_ADDR 0x4
226
227#define UDC_EPSTS_RX_PKT_SIZE_MASK 0x007ff800
228#define UDC_EPSTS_RX_PKT_SIZE_OFS 11
229
230#define UDC_EPSTS_TDC 10
231#define UDC_EPSTS_HE 9
232#define UDC_EPSTS_BNA 7
233#define UDC_EPSTS_IN 6
234
235#define UDC_EPSTS_OUT_MASK 0x00000030
236#define UDC_EPSTS_OUT_OFS 4
237#define UDC_EPSTS_OUT_DATA 1
238#define UDC_EPSTS_OUT_DATA_CLEAR 0x10
239#define UDC_EPSTS_OUT_SETUP 2
240#define UDC_EPSTS_OUT_SETUP_CLEAR 0x20
241#define UDC_EPSTS_OUT_CLEAR 0x30
242
243/* Endpoint Buffer Size IN/ Receive Packet Frame Number OUT Registers ------*/
244#define UDC_EPIN_BUFF_SIZE_ADDR 0x8
245#define UDC_EPOUT_FRAME_NUMBER_ADDR 0x8
246
247#define UDC_EPIN_BUFF_SIZE_MASK 0x0000ffff
248#define UDC_EPIN_BUFF_SIZE_OFS 0
249/* EP0in txfifo = 128 bytes*/
250#define UDC_EPIN0_BUFF_SIZE 32
251/* EP0in fullspeed txfifo = 128 bytes*/
252#define UDC_FS_EPIN0_BUFF_SIZE 32
253
254/* fifo size mult = fifo size / max packet */
255#define UDC_EPIN_BUFF_SIZE_MULT 2
256
257/* EPin data fifo size = 1024 bytes DOUBLE BUFFERING */
258#define UDC_EPIN_BUFF_SIZE 256
259/* EPin small INT data fifo size = 128 bytes */
260#define UDC_EPIN_SMALLINT_BUFF_SIZE 32
261
262/* EPin fullspeed data fifo size = 128 bytes DOUBLE BUFFERING */
263#define UDC_FS_EPIN_BUFF_SIZE 32
264
265#define UDC_EPOUT_FRAME_NUMBER_MASK 0x0000ffff
266#define UDC_EPOUT_FRAME_NUMBER_OFS 0
267
268/* Endpoint Buffer Size OUT/Max Packet Size Registers -----------------------*/
269#define UDC_EPOUT_BUFF_SIZE_ADDR 0x0c
270#define UDC_EP_MAX_PKT_SIZE_ADDR 0x0c
271
272#define UDC_EPOUT_BUFF_SIZE_MASK 0xffff0000
273#define UDC_EPOUT_BUFF_SIZE_OFS 16
274#define UDC_EP_MAX_PKT_SIZE_MASK 0x0000ffff
275#define UDC_EP_MAX_PKT_SIZE_OFS 0
276/* EP0in max packet size = 64 bytes */
277#define UDC_EP0IN_MAX_PKT_SIZE 64
278/* EP0out max packet size = 64 bytes */
279#define UDC_EP0OUT_MAX_PKT_SIZE 64
280/* EP0in fullspeed max packet size = 64 bytes */
281#define UDC_FS_EP0IN_MAX_PKT_SIZE 64
282/* EP0out fullspeed max packet size = 64 bytes */
283#define UDC_FS_EP0OUT_MAX_PKT_SIZE 64
284
285/*
286 * Endpoint dma descriptors ------------------------------------------------
287 *
288 * Setup data, Status dword
289 */
290#define UDC_DMA_STP_STS_CFG_MASK 0x0fff0000
291#define UDC_DMA_STP_STS_CFG_OFS 16
292#define UDC_DMA_STP_STS_CFG_ALT_MASK 0x000f0000
293#define UDC_DMA_STP_STS_CFG_ALT_OFS 16
294#define UDC_DMA_STP_STS_CFG_INTF_MASK 0x00f00000
295#define UDC_DMA_STP_STS_CFG_INTF_OFS 20
296#define UDC_DMA_STP_STS_CFG_NUM_MASK 0x0f000000
297#define UDC_DMA_STP_STS_CFG_NUM_OFS 24
298#define UDC_DMA_STP_STS_RX_MASK 0x30000000
299#define UDC_DMA_STP_STS_RX_OFS 28
300#define UDC_DMA_STP_STS_BS_MASK 0xc0000000
301#define UDC_DMA_STP_STS_BS_OFS 30
302#define UDC_DMA_STP_STS_BS_HOST_READY 0
303#define UDC_DMA_STP_STS_BS_DMA_BUSY 1
304#define UDC_DMA_STP_STS_BS_DMA_DONE 2
305#define UDC_DMA_STP_STS_BS_HOST_BUSY 3
306/* IN data, Status dword */
307#define UDC_DMA_IN_STS_TXBYTES_MASK 0x0000ffff
308#define UDC_DMA_IN_STS_TXBYTES_OFS 0
309#define UDC_DMA_IN_STS_FRAMENUM_MASK 0x07ff0000
310#define UDC_DMA_IN_STS_FRAMENUM_OFS 0
311#define UDC_DMA_IN_STS_L 27
312#define UDC_DMA_IN_STS_TX_MASK 0x30000000
313#define UDC_DMA_IN_STS_TX_OFS 28
314#define UDC_DMA_IN_STS_BS_MASK 0xc0000000
315#define UDC_DMA_IN_STS_BS_OFS 30
316#define UDC_DMA_IN_STS_BS_HOST_READY 0
317#define UDC_DMA_IN_STS_BS_DMA_BUSY 1
318#define UDC_DMA_IN_STS_BS_DMA_DONE 2
319#define UDC_DMA_IN_STS_BS_HOST_BUSY 3
320/* OUT data, Status dword */
321#define UDC_DMA_OUT_STS_RXBYTES_MASK 0x0000ffff
322#define UDC_DMA_OUT_STS_RXBYTES_OFS 0
323#define UDC_DMA_OUT_STS_FRAMENUM_MASK 0x07ff0000
324#define UDC_DMA_OUT_STS_FRAMENUM_OFS 0
325#define UDC_DMA_OUT_STS_L 27
326#define UDC_DMA_OUT_STS_RX_MASK 0x30000000
327#define UDC_DMA_OUT_STS_RX_OFS 28
328#define UDC_DMA_OUT_STS_BS_MASK 0xc0000000
329#define UDC_DMA_OUT_STS_BS_OFS 30
330#define UDC_DMA_OUT_STS_BS_HOST_READY 0
331#define UDC_DMA_OUT_STS_BS_DMA_BUSY 1
332#define UDC_DMA_OUT_STS_BS_DMA_DONE 2
333#define UDC_DMA_OUT_STS_BS_HOST_BUSY 3
334/* max ep0in packet */
335#define UDC_EP0IN_MAXPACKET 1000
336/* max dma packet */
337#define UDC_DMA_MAXPACKET 65536
338
339/* un-usable DMA address */
340#define DMA_DONT_USE (~(dma_addr_t) 0 )
341
342/* other Endpoint register addresses and values-----------------------------*/
343#define UDC_EP_SUBPTR_ADDR 0x10
344#define UDC_EP_DESPTR_ADDR 0x14
345#define UDC_EP_WRITE_CONFIRM_ADDR 0x1c
346
347/* EP number as layouted in AHB space */
348#define UDC_EP_NUM 32
349#define UDC_EPIN_NUM 16
350#define UDC_EPIN_NUM_USED 5
351#define UDC_EPOUT_NUM 16
352/* EP number of EP's really used = EP0 + 8 data EP's */
353#define UDC_USED_EP_NUM 9
354/* UDC CSR regs are aligned but AHB regs not - offset for OUT EP's */
355#define UDC_CSR_EP_OUT_IX_OFS 12
356
357#define UDC_EP0OUT_IX 16
358#define UDC_EP0IN_IX 0
359
360/* Rx fifo address and size = 1k -------------------------------------------*/
361#define UDC_RXFIFO_ADDR 0x800
362#define UDC_RXFIFO_SIZE 0x400
363
364/* Tx fifo address and size = 1.5k -----------------------------------------*/
365#define UDC_TXFIFO_ADDR 0xc00
366#define UDC_TXFIFO_SIZE 0x600
367
368/* default data endpoints --------------------------------------------------*/
369#define UDC_EPIN_STATUS_IX 1
370#define UDC_EPIN_IX 2
371#define UDC_EPOUT_IX 18
372
373/* general constants -------------------------------------------------------*/
374#define UDC_DWORD_BYTES 4
375#define UDC_BITS_PER_BYTE_SHIFT 3
376#define UDC_BYTE_MASK 0xff
377#define UDC_BITS_PER_BYTE 8
378
379/*---------------------------------------------------------------------------*/
380/* UDC CSR's */
381struct udc_csrs {
382
383 /* sca - setup command address */
384 u32 sca;
385
386 /* ep ne's */
387 u32 ne[UDC_USED_EP_NUM];
388} __attribute__ ((packed));
389
390/* AHB subsystem CSR registers */
391struct udc_regs {
392
393 /* device configuration */
394 u32 cfg;
395
396 /* device control */
397 u32 ctl;
398
399 /* device status */
400 u32 sts;
401
402 /* device interrupt */
403 u32 irqsts;
404
405 /* device interrupt mask */
406 u32 irqmsk;
407
408 /* endpoint interrupt */
409 u32 ep_irqsts;
410
411 /* endpoint interrupt mask */
412 u32 ep_irqmsk;
413} __attribute__ ((packed));
414
415/* endpoint specific registers */
416struct udc_ep_regs {
417
418 /* endpoint control */
419 u32 ctl;
420
421 /* endpoint status */
422 u32 sts;
423
424 /* endpoint buffer size in/ receive packet frame number out */
425 u32 bufin_framenum;
426
427 /* endpoint buffer size out/max packet size */
428 u32 bufout_maxpkt;
429
430 /* endpoint setup buffer pointer */
431 u32 subptr;
432
433 /* endpoint data descriptor pointer */
434 u32 desptr;
435
436 /* reserverd */
437 u32 reserved;
438
439 /* write/read confirmation */
440 u32 confirm;
441
442} __attribute__ ((packed));
443
444/* control data DMA desc */
445struct udc_stp_dma {
446 /* status quadlet */
447 u32 status;
448 /* reserved */
449 u32 _reserved;
450 /* first setup word */
451 u32 data12;
452 /* second setup word */
453 u32 data34;
454} __attribute__ ((aligned (16)));
455
456/* normal data DMA desc */
457struct udc_data_dma {
458 /* status quadlet */
459 u32 status;
460 /* reserved */
461 u32 _reserved;
462 /* buffer pointer */
463 u32 bufptr;
464 /* next descriptor pointer */
465 u32 next;
466} __attribute__ ((aligned (16)));
467
468/* request packet */
469struct udc_request {
470 /* embedded gadget ep */
471 struct usb_request req;
472
473 /* flags */
474 unsigned dma_going : 1,
475 dma_done : 1;
476 /* phys. address */
477 dma_addr_t td_phys;
478 /* first dma desc. of chain */
479 struct udc_data_dma *td_data;
480 /* last dma desc. of chain */
481 struct udc_data_dma *td_data_last;
482 struct list_head queue;
483
484 /* chain length */
485 unsigned chain_len;
486
487};
488
489/* UDC specific endpoint parameters */
490struct udc_ep {
491 struct usb_ep ep;
492 struct udc_ep_regs __iomem *regs;
493 u32 __iomem *txfifo;
494 u32 __iomem *dma;
495 dma_addr_t td_phys;
496 dma_addr_t td_stp_dma;
497 struct udc_stp_dma *td_stp;
498 struct udc_data_dma *td;
499 /* temp request */
500 struct udc_request *req;
501 unsigned req_used;
502 unsigned req_completed;
503 /* dummy DMA desc for BNA dummy */
504 struct udc_request *bna_dummy_req;
505 unsigned bna_occurred;
506
507 /* NAK state */
508 unsigned naking;
509
510 struct udc *dev;
511
512 /* queue for requests */
513 struct list_head queue;
514 unsigned halted;
515 unsigned cancel_transfer;
516 unsigned num : 5,
517 fifo_depth : 14,
518 in : 1;
519};
520
521/* device struct */
522struct udc {
523 struct usb_gadget gadget;
524 spinlock_t lock; /* protects all state */
525 /* all endpoints */
526 struct udc_ep ep[UDC_EP_NUM];
527 struct usb_gadget_driver *driver;
528 /* operational flags */
529 unsigned stall_ep0in : 1,
530 waiting_zlp_ack_ep0in : 1,
531 set_cfg_not_acked : 1,
532 data_ep_enabled : 1,
533 data_ep_queued : 1,
534 sys_suspended : 1,
535 connected;
536
537 u16 chiprev;
538
539 /* registers */
540 struct pci_dev *pdev;
541 struct udc_csrs __iomem *csr;
542 struct udc_regs __iomem *regs;
543 struct udc_ep_regs __iomem *ep_regs;
544 u32 __iomem *rxfifo;
545 u32 __iomem *txfifo;
546
547 /* DMA desc pools */
548 struct pci_pool *data_requests;
549 struct pci_pool *stp_requests;
550
551 /* device data */
552 unsigned long phys_addr;
553 void __iomem *virt_addr;
554 unsigned irq;
555
556 /* states */
557 u16 cur_config;
558 u16 cur_intf;
559 u16 cur_alt;
560};
561
562#define to_amd5536_udc(g) (container_of((g), struct udc, gadget))
563
564/* setup request data */
565union udc_setup_data {
566 u32 data[2];
567 struct usb_ctrlrequest request;
568};
569
570/*
571 *---------------------------------------------------------------------------
572 * SET and GET bitfields in u32 values
573 * via constants for mask/offset:
574 * <bit_field_stub_name> is the text between
575 * UDC_ and _MASK|_OFS of appropriate
576 * constant
577 *
578 * set bitfield value in u32 u32Val
579 */
580#define AMD_ADDBITS(u32Val, bitfield_val, bitfield_stub_name) \
581 (((u32Val) & (((u32) ~((u32) bitfield_stub_name##_MASK)))) \
582 | (((bitfield_val) << ((u32) bitfield_stub_name##_OFS)) \
583 & ((u32) bitfield_stub_name##_MASK)))
584
585/*
586 * set bitfield value in zero-initialized u32 u32Val
587 * => bitfield bits in u32Val are all zero
588 */
589#define AMD_INIT_SETBITS(u32Val, bitfield_val, bitfield_stub_name) \
590 ((u32Val) \
591 | (((bitfield_val) << ((u32) bitfield_stub_name##_OFS)) \
592 & ((u32) bitfield_stub_name##_MASK)))
593
594/* get bitfield value from u32 u32Val */
595#define AMD_GETBITS(u32Val, bitfield_stub_name) \
596 ((u32Val & ((u32) bitfield_stub_name##_MASK)) \
597 >> ((u32) bitfield_stub_name##_OFS))
598
599/* SET and GET bits in u32 values ------------------------------------------*/
600#define AMD_BIT(bit_stub_name) (1 << bit_stub_name)
601#define AMD_UNMASK_BIT(bit_stub_name) (~AMD_BIT(bit_stub_name))
602#define AMD_CLEAR_BIT(bit_stub_name) (~AMD_BIT(bit_stub_name))
603
604/* debug macros ------------------------------------------------------------*/
605
606#define DBG(udc , args...) dev_dbg(&(udc)->pdev->dev, args)
607
608#ifdef UDC_VERBOSE
609#define VDBG DBG
610#else
611#define VDBG(udc , args...) do {} while (0)
612#endif
613
614#endif /* #ifdef AMD5536UDC_H */