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35#ifndef __MUSB_CORE_H__
36#define __MUSB_CORE_H__
37
38#include <linux/slab.h>
39#include <linux/list.h>
40#include <linux/interrupt.h>
41#include <linux/errno.h>
42#include <linux/timer.h>
43#include <linux/device.h>
44#include <linux/usb/ch9.h>
45#include <linux/usb/gadget.h>
46#include <linux/usb.h>
47#include <linux/usb/otg.h>
48#include <linux/usb/musb.h>
49
50struct musb;
51struct musb_hw_ep;
52struct musb_ep;
53
54
55#define MUSB_HWVERS_MAJOR(x) ((x >> 10) & 0x1f)
56#define MUSB_HWVERS_MINOR(x) (x & 0x3ff)
57#define MUSB_HWVERS_RC 0x8000
58#define MUSB_HWVERS_1300 0x52C
59#define MUSB_HWVERS_1400 0x590
60#define MUSB_HWVERS_1800 0x720
61#define MUSB_HWVERS_1900 0x784
62#define MUSB_HWVERS_2000 0x800
63
64#include "musb_debug.h"
65#include "musb_dma.h"
66
67#include "musb_io.h"
68#include "musb_regs.h"
69
70#include "musb_gadget.h"
71#include <linux/usb/hcd.h>
72#include "musb_host.h"
73
74
75
76
77#define is_peripheral_active(m) (!(m)->is_host)
78#define is_host_active(m) ((m)->is_host)
79
80enum {
81 MUSB_PORT_MODE_HOST = 1,
82 MUSB_PORT_MODE_GADGET,
83 MUSB_PORT_MODE_DUAL_ROLE,
84};
85
86
87
88#ifndef MUSB_C_NUM_EPS
89#define MUSB_C_NUM_EPS ((u8)16)
90#endif
91
92#ifndef MUSB_MAX_END0_PACKET
93#define MUSB_MAX_END0_PACKET ((u16)MUSB_EP0_FIFOSIZE)
94#endif
95
96
97enum musb_h_ep0_state {
98 MUSB_EP0_IDLE,
99 MUSB_EP0_START,
100 MUSB_EP0_IN,
101 MUSB_EP0_OUT,
102 MUSB_EP0_STATUS,
103} __attribute__ ((packed));
104
105
106enum musb_g_ep0_state {
107 MUSB_EP0_STAGE_IDLE,
108 MUSB_EP0_STAGE_SETUP,
109 MUSB_EP0_STAGE_TX,
110 MUSB_EP0_STAGE_RX,
111 MUSB_EP0_STAGE_STATUSIN,
112 MUSB_EP0_STAGE_STATUSOUT,
113 MUSB_EP0_STAGE_ACKWAIT,
114} __attribute__ ((packed));
115
116
117
118
119
120#define OTG_TIME_A_WAIT_VRISE 100
121#define OTG_TIME_A_WAIT_BCON 1100
122#define OTG_TIME_A_AIDL_BDIS 200
123#define OTG_TIME_B_ASE0_BRST 100
124
125
126
127
128
129
130
131
132#if defined(CONFIG_ARCH_DAVINCI) || defined(CONFIG_SOC_OMAP2430) \
133 || defined(CONFIG_SOC_OMAP3430) || defined(CONFIG_BLACKFIN) \
134 || defined(CONFIG_ARCH_OMAP4)
135
136
137
138#define MUSB_FLAT_REG
139#endif
140
141
142#if defined(CONFIG_USB_MUSB_TUSB6010) || \
143 defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
144#define musb_ep_select(_mbase, _epnum) \
145 musb_writeb((_mbase), MUSB_INDEX, (_epnum))
146#define MUSB_EP_OFFSET MUSB_TUSB_OFFSET
147
148
149#elif defined(MUSB_FLAT_REG)
150#define musb_ep_select(_mbase, _epnum) (((void)(_mbase)), ((void)(_epnum)))
151#define MUSB_EP_OFFSET MUSB_FLAT_OFFSET
152
153
154#else
155#define musb_ep_select(_mbase, _epnum) \
156 musb_writeb((_mbase), MUSB_INDEX, (_epnum))
157#define MUSB_EP_OFFSET MUSB_INDEXED_OFFSET
158#endif
159
160
161
162#define MUSB_HST_MODE(_musb)\
163 { (_musb)->is_host = true; }
164#define MUSB_DEV_MODE(_musb) \
165 { (_musb)->is_host = false; }
166
167#define test_devctl_hst_mode(_x) \
168 (musb_readb((_x)->mregs, MUSB_DEVCTL)&MUSB_DEVCTL_HM)
169
170#define MUSB_MODE(musb) ((musb)->is_host ? "Host" : "Peripheral")
171
172
173
174
175
176
177
178
179
180
181
182
183
184struct musb_platform_ops {
185 int (*init)(struct musb *musb);
186 int (*exit)(struct musb *musb);
187
188 void (*enable)(struct musb *musb);
189 void (*disable)(struct musb *musb);
190
191 int (*set_mode)(struct musb *musb, u8 mode);
192 void (*try_idle)(struct musb *musb, unsigned long timeout);
193
194 int (*vbus_status)(struct musb *musb);
195 void (*set_vbus)(struct musb *musb, int on);
196
197 int (*adjust_channel_params)(struct dma_channel *channel,
198 u16 packet_sz, u8 *mode,
199 dma_addr_t *dma_addr, u32 *len);
200};
201
202
203
204
205
206
207struct musb_hw_ep {
208 struct musb *musb;
209 void __iomem *fifo;
210 void __iomem *regs;
211
212#if defined(CONFIG_USB_MUSB_TUSB6010) || \
213 defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
214 void __iomem *conf;
215#endif
216
217
218 u8 epnum;
219
220
221 bool is_shared_fifo;
222 bool tx_double_buffered;
223 bool rx_double_buffered;
224 u16 max_packet_sz_tx;
225 u16 max_packet_sz_rx;
226
227 struct dma_channel *tx_channel;
228 struct dma_channel *rx_channel;
229
230#if defined(CONFIG_USB_MUSB_TUSB6010) || \
231 defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
232
233 dma_addr_t fifo_async;
234 dma_addr_t fifo_sync;
235 void __iomem *fifo_sync_va;
236#endif
237
238 void __iomem *target_regs;
239
240
241 struct musb_qh *in_qh;
242 struct musb_qh *out_qh;
243
244 u8 rx_reinit;
245 u8 tx_reinit;
246
247
248 struct musb_ep ep_in;
249 struct musb_ep ep_out;
250};
251
252static inline struct musb_request *next_in_request(struct musb_hw_ep *hw_ep)
253{
254 return next_request(&hw_ep->ep_in);
255}
256
257static inline struct musb_request *next_out_request(struct musb_hw_ep *hw_ep)
258{
259 return next_request(&hw_ep->ep_out);
260}
261
262struct musb_csr_regs {
263
264 u16 txmaxp, txcsr, rxmaxp, rxcsr;
265 u16 rxfifoadd, txfifoadd;
266 u8 txtype, txinterval, rxtype, rxinterval;
267 u8 rxfifosz, txfifosz;
268 u8 txfunaddr, txhubaddr, txhubport;
269 u8 rxfunaddr, rxhubaddr, rxhubport;
270};
271
272struct musb_context_registers {
273
274 u8 power;
275 u8 intrusbe;
276 u16 frame;
277 u8 index, testmode;
278
279 u8 devctl, busctl, misc;
280 u32 otg_interfsel;
281
282 struct musb_csr_regs index_regs[MUSB_C_NUM_EPS];
283};
284
285
286
287
288struct musb {
289
290 spinlock_t lock;
291
292 const struct musb_platform_ops *ops;
293 struct musb_context_registers context;
294
295 irqreturn_t (*isr)(int, void *);
296 struct work_struct irq_work;
297 u16 hwvers;
298
299 u16 intrrxe;
300 u16 intrtxe;
301
302#define MUSB_PORT_STAT_RESUME (1 << 31)
303
304 u32 port1_status;
305
306 unsigned long rh_timer;
307
308 enum musb_h_ep0_state ep0_stage;
309
310
311
312
313
314
315
316 struct musb_hw_ep *bulk_ep;
317
318 struct list_head control;
319 struct list_head in_bulk;
320 struct list_head out_bulk;
321
322 struct timer_list otg_timer;
323 struct notifier_block nb;
324
325 struct dma_controller *dma_controller;
326
327 struct device *controller;
328 void __iomem *ctrl_base;
329 void __iomem *mregs;
330
331#if defined(CONFIG_USB_MUSB_TUSB6010) || \
332 defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
333 dma_addr_t async;
334 dma_addr_t sync;
335 void __iomem *sync_va;
336#endif
337
338
339 u8 int_usb;
340 u16 int_rx;
341 u16 int_tx;
342
343 struct usb_phy *xceiv;
344
345 int nIrq;
346 unsigned irq_wake:1;
347
348 struct musb_hw_ep endpoints[MUSB_C_NUM_EPS];
349#define control_ep endpoints
350
351#define VBUSERR_RETRY_COUNT 3
352 u16 vbuserr_retry;
353 u16 epmask;
354 u8 nr_endpoints;
355
356 int (*board_set_power)(int state);
357
358 u8 min_power;
359
360 int port_mode;
361 bool is_host;
362
363 int a_wait_bcon;
364 unsigned long idle_timeout;
365
366
367 unsigned is_active:1;
368
369 unsigned is_multipoint:1;
370
371 unsigned hb_iso_rx:1;
372 unsigned hb_iso_tx:1;
373 unsigned dyn_fifo:1;
374
375 unsigned bulk_split:1;
376#define can_bulk_split(musb,type) \
377 (((type) == USB_ENDPOINT_XFER_BULK) && (musb)->bulk_split)
378
379 unsigned bulk_combine:1;
380#define can_bulk_combine(musb,type) \
381 (((type) == USB_ENDPOINT_XFER_BULK) && (musb)->bulk_combine)
382
383
384 unsigned is_suspended:1;
385
386
387 unsigned may_wakeup:1;
388
389
390
391
392
393 unsigned is_self_powered:1;
394 unsigned is_bus_powered:1;
395
396 unsigned set_address:1;
397 unsigned test_mode:1;
398 unsigned softconnect:1;
399
400 u8 address;
401 u8 test_mode_nr;
402 u16 ackpend;
403 enum musb_g_ep0_state ep0_state;
404 struct usb_gadget g;
405 struct usb_gadget_driver *gadget_driver;
406 struct usb_hcd *hcd;
407
408
409
410
411
412
413
414
415
416
417
418
419 unsigned double_buffer_not_ok:1;
420
421 struct musb_hdrc_config *config;
422
423 int xceiv_old_state;
424#ifdef CONFIG_DEBUG_FS
425 struct dentry *debugfs_root;
426#endif
427};
428
429static inline struct musb *gadget_to_musb(struct usb_gadget *g)
430{
431 return container_of(g, struct musb, g);
432}
433
434#ifdef CONFIG_BLACKFIN
435static inline int musb_read_fifosize(struct musb *musb,
436 struct musb_hw_ep *hw_ep, u8 epnum)
437{
438 musb->nr_endpoints++;
439 musb->epmask |= (1 << epnum);
440
441 if (epnum < 5) {
442 hw_ep->max_packet_sz_tx = 128;
443 hw_ep->max_packet_sz_rx = 128;
444 } else {
445 hw_ep->max_packet_sz_tx = 1024;
446 hw_ep->max_packet_sz_rx = 1024;
447 }
448 hw_ep->is_shared_fifo = false;
449
450 return 0;
451}
452
453static inline void musb_configure_ep0(struct musb *musb)
454{
455 musb->endpoints[0].max_packet_sz_tx = MUSB_EP0_FIFOSIZE;
456 musb->endpoints[0].max_packet_sz_rx = MUSB_EP0_FIFOSIZE;
457 musb->endpoints[0].is_shared_fifo = true;
458}
459
460#else
461
462static inline int musb_read_fifosize(struct musb *musb,
463 struct musb_hw_ep *hw_ep, u8 epnum)
464{
465 void __iomem *mbase = musb->mregs;
466 u8 reg = 0;
467
468
469 reg = musb_readb(mbase, MUSB_EP_OFFSET(epnum, MUSB_FIFOSIZE));
470
471 if (!reg)
472 return -ENODEV;
473
474 musb->nr_endpoints++;
475 musb->epmask |= (1 << epnum);
476
477 hw_ep->max_packet_sz_tx = 1 << (reg & 0x0f);
478
479
480 if ((reg & 0xf0) == 0xf0) {
481 hw_ep->max_packet_sz_rx = hw_ep->max_packet_sz_tx;
482 hw_ep->is_shared_fifo = true;
483 return 0;
484 } else {
485 hw_ep->max_packet_sz_rx = 1 << ((reg & 0xf0) >> 4);
486 hw_ep->is_shared_fifo = false;
487 }
488
489 return 0;
490}
491
492static inline void musb_configure_ep0(struct musb *musb)
493{
494 musb->endpoints[0].max_packet_sz_tx = MUSB_EP0_FIFOSIZE;
495 musb->endpoints[0].max_packet_sz_rx = MUSB_EP0_FIFOSIZE;
496 musb->endpoints[0].is_shared_fifo = true;
497}
498#endif
499
500
501
502
503extern const char musb_driver_name[];
504
505extern void musb_stop(struct musb *musb);
506extern void musb_start(struct musb *musb);
507
508extern void musb_write_fifo(struct musb_hw_ep *ep, u16 len, const u8 *src);
509extern void musb_read_fifo(struct musb_hw_ep *ep, u16 len, u8 *dst);
510
511extern void musb_load_testpacket(struct musb *);
512
513extern irqreturn_t musb_interrupt(struct musb *);
514
515extern void musb_hnp_stop(struct musb *musb);
516
517static inline void musb_platform_set_vbus(struct musb *musb, int is_on)
518{
519 if (musb->ops->set_vbus)
520 musb->ops->set_vbus(musb, is_on);
521}
522
523static inline void musb_platform_enable(struct musb *musb)
524{
525 if (musb->ops->enable)
526 musb->ops->enable(musb);
527}
528
529static inline void musb_platform_disable(struct musb *musb)
530{
531 if (musb->ops->disable)
532 musb->ops->disable(musb);
533}
534
535static inline int musb_platform_set_mode(struct musb *musb, u8 mode)
536{
537 if (!musb->ops->set_mode)
538 return 0;
539
540 return musb->ops->set_mode(musb, mode);
541}
542
543static inline void musb_platform_try_idle(struct musb *musb,
544 unsigned long timeout)
545{
546 if (musb->ops->try_idle)
547 musb->ops->try_idle(musb, timeout);
548}
549
550static inline int musb_platform_get_vbus_status(struct musb *musb)
551{
552 if (!musb->ops->vbus_status)
553 return 0;
554
555 return musb->ops->vbus_status(musb);
556}
557
558static inline int musb_platform_init(struct musb *musb)
559{
560 if (!musb->ops->init)
561 return -EINVAL;
562
563 return musb->ops->init(musb);
564}
565
566static inline int musb_platform_exit(struct musb *musb)
567{
568 if (!musb->ops->exit)
569 return -EINVAL;
570
571 return musb->ops->exit(musb);
572}
573
574#endif
575