Commit | Line | Data |
---|---|---|
5fd54ace | 1 | // SPDX-License-Identifier: GPL-2.0 |
550a7375 FB |
2 | /* |
3 | * MUSB OTG driver defines | |
4 | * | |
5 | * Copyright 2005 Mentor Graphics Corporation | |
6 | * Copyright (C) 2005-2006 by Texas Instruments | |
7 | * Copyright (C) 2006-2007 Nokia Corporation | |
550a7375 FB |
8 | */ |
9 | ||
10 | #ifndef __MUSB_CORE_H__ | |
11 | #define __MUSB_CORE_H__ | |
12 | ||
13 | #include <linux/slab.h> | |
14 | #include <linux/list.h> | |
15 | #include <linux/interrupt.h> | |
550a7375 | 16 | #include <linux/errno.h> |
f7f9d63e | 17 | #include <linux/timer.h> |
550a7375 FB |
18 | #include <linux/device.h> |
19 | #include <linux/usb/ch9.h> | |
20 | #include <linux/usb/gadget.h> | |
21 | #include <linux/usb.h> | |
22 | #include <linux/usb/otg.h> | |
23 | #include <linux/usb/musb.h> | |
3e3101d5 | 24 | #include <linux/phy/phy.h> |
8ed1fb79 | 25 | #include <linux/workqueue.h> |
550a7375 FB |
26 | |
27 | struct musb; | |
28 | struct musb_hw_ep; | |
29 | struct musb_ep; | |
30 | ||
0ded2f14 CC |
31 | /* Helper defines for struct musb->hwvers */ |
32 | #define MUSB_HWVERS_MAJOR(x) ((x >> 10) & 0x1f) | |
33 | #define MUSB_HWVERS_MINOR(x) (x & 0x3ff) | |
34 | #define MUSB_HWVERS_RC 0x8000 | |
35 | #define MUSB_HWVERS_1300 0x52C | |
36 | #define MUSB_HWVERS_1400 0x590 | |
37 | #define MUSB_HWVERS_1800 0x720 | |
38 | #define MUSB_HWVERS_1900 0x784 | |
39 | #define MUSB_HWVERS_2000 0x800 | |
550a7375 FB |
40 | |
41 | #include "musb_debug.h" | |
42 | #include "musb_dma.h" | |
43 | ||
550a7375 | 44 | #include "musb_io.h" |
550a7375 FB |
45 | |
46 | #include "musb_gadget.h" | |
27729aad | 47 | #include <linux/usb/hcd.h> |
550a7375 FB |
48 | #include "musb_host.h" |
49 | ||
550a7375 FB |
50 | /* NOTE: otg and peripheral-only state machines start at B_IDLE. |
51 | * OTG or host-only go to A_IDLE when ID is sensed. | |
52 | */ | |
53 | #define is_peripheral_active(m) (!(m)->is_host) | |
54 | #define is_host_active(m) ((m)->is_host) | |
55 | ||
550a7375 FB |
56 | /****************************** CONSTANTS ********************************/ |
57 | ||
58 | #ifndef MUSB_C_NUM_EPS | |
59 | #define MUSB_C_NUM_EPS ((u8)16) | |
60 | #endif | |
61 | ||
62 | #ifndef MUSB_MAX_END0_PACKET | |
63 | #define MUSB_MAX_END0_PACKET ((u16)MUSB_EP0_FIFOSIZE) | |
64 | #endif | |
65 | ||
66 | /* host side ep0 states */ | |
67 | enum musb_h_ep0_state { | |
68 | MUSB_EP0_IDLE, | |
69 | MUSB_EP0_START, /* expect ack of setup */ | |
70 | MUSB_EP0_IN, /* expect IN DATA */ | |
71 | MUSB_EP0_OUT, /* expect ack of OUT DATA */ | |
72 | MUSB_EP0_STATUS, /* expect ack of STATUS */ | |
73 | } __attribute__ ((packed)); | |
74 | ||
75 | /* peripheral side ep0 states */ | |
76 | enum musb_g_ep0_state { | |
a5073b52 SS |
77 | MUSB_EP0_STAGE_IDLE, /* idle, waiting for SETUP */ |
78 | MUSB_EP0_STAGE_SETUP, /* received SETUP */ | |
550a7375 FB |
79 | MUSB_EP0_STAGE_TX, /* IN data */ |
80 | MUSB_EP0_STAGE_RX, /* OUT data */ | |
81 | MUSB_EP0_STAGE_STATUSIN, /* (after OUT data) */ | |
82 | MUSB_EP0_STAGE_STATUSOUT, /* (after IN data) */ | |
83 | MUSB_EP0_STAGE_ACKWAIT, /* after zlp, before statusin */ | |
84 | } __attribute__ ((packed)); | |
85 | ||
f7f9d63e DB |
86 | /* |
87 | * OTG protocol constants. See USB OTG 1.3 spec, | |
88 | * sections 5.5 "Device Timings" and 6.6.5 "Timers". | |
89 | */ | |
550a7375 | 90 | #define OTG_TIME_A_WAIT_VRISE 100 /* msec (max) */ |
f7f9d63e DB |
91 | #define OTG_TIME_A_WAIT_BCON 1100 /* min 1 second */ |
92 | #define OTG_TIME_A_AIDL_BDIS 200 /* min 200 msec */ | |
93 | #define OTG_TIME_B_ASE0_BRST 100 /* min 3.125 ms */ | |
94 | ||
550a7375 FB |
95 | /****************************** FUNCTIONS ********************************/ |
96 | ||
97 | #define MUSB_HST_MODE(_musb)\ | |
98 | { (_musb)->is_host = true; } | |
99 | #define MUSB_DEV_MODE(_musb) \ | |
100 | { (_musb)->is_host = false; } | |
101 | ||
102 | #define test_devctl_hst_mode(_x) \ | |
103 | (musb_readb((_x)->mregs, MUSB_DEVCTL)&MUSB_DEVCTL_HM) | |
104 | ||
105 | #define MUSB_MODE(musb) ((musb)->is_host ? "Host" : "Peripheral") | |
106 | ||
107 | /******************************** TYPES *************************************/ | |
108 | ||
5450ac88 TL |
109 | struct musb_io; |
110 | ||
3ca8abb8 FB |
111 | /** |
112 | * struct musb_platform_ops - Operations passed to musb_core by HW glue layer | |
5450ac88 TL |
113 | * @quirks: flags for platform specific quirks |
114 | * @enable: enable device | |
115 | * @disable: disable device | |
116 | * @ep_offset: returns the end point offset | |
117 | * @ep_select: selects the specified end point | |
118 | * @fifo_mode: sets the fifo mode | |
119 | * @fifo_offset: returns the fifo offset | |
120 | * @readb: read 8 bits | |
121 | * @writeb: write 8 bits | |
122 | * @readw: read 16 bits | |
123 | * @writew: write 16 bits | |
5450ac88 TL |
124 | * @read_fifo: reads the fifo |
125 | * @write_fifo: writes to fifo | |
7f6283ed TL |
126 | * @dma_init: platform specific dma init function |
127 | * @dma_exit: platform specific dma exit function | |
3ca8abb8 FB |
128 | * @init: turns on clocks, sets up platform-specific registers, etc |
129 | * @exit: undoes @init | |
3ca8abb8 | 130 | * @set_mode: forcefully changes operating mode |
b28a6432 FB |
131 | * @try_idle: tries to idle the IP |
132 | * @recover: platform-specific babble recovery | |
3ca8abb8 FB |
133 | * @vbus_status: returns vbus status if possible |
134 | * @set_vbus: forces vbus status | |
591fa9dd HG |
135 | * @pre_root_reset_end: called before the root usb port reset flag gets cleared |
136 | * @post_root_reset_end: called after the root usb port reset flag gets cleared | |
8055555f | 137 | * @phy_callback: optional callback function for the phy to call |
3ca8abb8 FB |
138 | */ |
139 | struct musb_platform_ops { | |
5450ac88 | 140 | |
1fa07c37 | 141 | #define MUSB_G_NO_SKB_RESERVE BIT(9) |
593bc462 | 142 | #define MUSB_DA8XX BIT(8) |
a926ed11 | 143 | #define MUSB_PRESERVE_SESSION BIT(7) |
5450ac88 TL |
144 | #define MUSB_DMA_UX500 BIT(6) |
145 | #define MUSB_DMA_CPPI41 BIT(5) | |
146 | #define MUSB_DMA_CPPI BIT(4) | |
147 | #define MUSB_DMA_TUSB_OMAP BIT(3) | |
148 | #define MUSB_DMA_INVENTRA BIT(2) | |
149 | #define MUSB_IN_TUSB BIT(1) | |
150 | #define MUSB_INDEXED_EP BIT(0) | |
151 | u32 quirks; | |
152 | ||
3ca8abb8 FB |
153 | int (*init)(struct musb *musb); |
154 | int (*exit)(struct musb *musb); | |
155 | ||
3ca8abb8 FB |
156 | void (*enable)(struct musb *musb); |
157 | void (*disable)(struct musb *musb); | |
158 | ||
5450ac88 TL |
159 | u32 (*ep_offset)(u8 epnum, u16 offset); |
160 | void (*ep_select)(void __iomem *mbase, u8 epnum); | |
161 | u16 fifo_mode; | |
162 | u32 (*fifo_offset)(u8 epnum); | |
6cc2af6d | 163 | u32 (*busctl_offset)(u8 epnum, u16 offset); |
5450ac88 TL |
164 | u8 (*readb)(const void __iomem *addr, unsigned offset); |
165 | void (*writeb)(void __iomem *addr, unsigned offset, u8 data); | |
166 | u16 (*readw)(const void __iomem *addr, unsigned offset); | |
167 | void (*writew)(void __iomem *addr, unsigned offset, u16 data); | |
5450ac88 TL |
168 | void (*read_fifo)(struct musb_hw_ep *hw_ep, u16 len, u8 *buf); |
169 | void (*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf); | |
7f6283ed TL |
170 | struct dma_controller * |
171 | (*dma_init) (struct musb *musb, void __iomem *base); | |
172 | void (*dma_exit)(struct dma_controller *c); | |
3ca8abb8 FB |
173 | int (*set_mode)(struct musb *musb, u8 mode); |
174 | void (*try_idle)(struct musb *musb, unsigned long timeout); | |
b28a6432 | 175 | int (*recover)(struct musb *musb); |
3ca8abb8 FB |
176 | |
177 | int (*vbus_status)(struct musb *musb); | |
178 | void (*set_vbus)(struct musb *musb, int on); | |
13254307 | 179 | |
591fa9dd HG |
180 | void (*pre_root_reset_end)(struct musb *musb); |
181 | void (*post_root_reset_end)(struct musb *musb); | |
12b7db2b | 182 | int (*phy_callback)(enum musb_vbus_id_status status); |
6def85a3 | 183 | void (*clear_ep_rxintr)(struct musb *musb, int epnum); |
3ca8abb8 FB |
184 | }; |
185 | ||
550a7375 FB |
186 | /* |
187 | * struct musb_hw_ep - endpoint hardware (bidirectional) | |
188 | * | |
189 | * Ordered slightly for better cacheline locality. | |
190 | */ | |
191 | struct musb_hw_ep { | |
192 | struct musb *musb; | |
193 | void __iomem *fifo; | |
194 | void __iomem *regs; | |
195 | ||
ebf39920 | 196 | #if IS_ENABLED(CONFIG_USB_MUSB_TUSB6010) |
550a7375 FB |
197 | void __iomem *conf; |
198 | #endif | |
199 | ||
200 | /* index in musb->endpoints[] */ | |
201 | u8 epnum; | |
202 | ||
203 | /* hardware configuration, possibly dynamic */ | |
204 | bool is_shared_fifo; | |
205 | bool tx_double_buffered; | |
206 | bool rx_double_buffered; | |
207 | u16 max_packet_sz_tx; | |
208 | u16 max_packet_sz_rx; | |
209 | ||
210 | struct dma_channel *tx_channel; | |
211 | struct dma_channel *rx_channel; | |
212 | ||
ebf39920 | 213 | #if IS_ENABLED(CONFIG_USB_MUSB_TUSB6010) |
550a7375 FB |
214 | /* TUSB has "asynchronous" and "synchronous" dma modes */ |
215 | dma_addr_t fifo_async; | |
216 | dma_addr_t fifo_sync; | |
217 | void __iomem *fifo_sync_va; | |
218 | #endif | |
219 | ||
550a7375 FB |
220 | /* currently scheduled peripheral endpoint */ |
221 | struct musb_qh *in_qh; | |
222 | struct musb_qh *out_qh; | |
223 | ||
224 | u8 rx_reinit; | |
225 | u8 tx_reinit; | |
550a7375 | 226 | |
550a7375 FB |
227 | /* peripheral side */ |
228 | struct musb_ep ep_in; /* TX */ | |
229 | struct musb_ep ep_out; /* RX */ | |
550a7375 FB |
230 | }; |
231 | ||
ad1adb89 | 232 | static inline struct musb_request *next_in_request(struct musb_hw_ep *hw_ep) |
550a7375 | 233 | { |
550a7375 | 234 | return next_request(&hw_ep->ep_in); |
550a7375 FB |
235 | } |
236 | ||
ad1adb89 | 237 | static inline struct musb_request *next_out_request(struct musb_hw_ep *hw_ep) |
550a7375 | 238 | { |
550a7375 | 239 | return next_request(&hw_ep->ep_out); |
550a7375 FB |
240 | } |
241 | ||
7421107b FB |
242 | struct musb_csr_regs { |
243 | /* FIFO registers */ | |
244 | u16 txmaxp, txcsr, rxmaxp, rxcsr; | |
245 | u16 rxfifoadd, txfifoadd; | |
246 | u8 txtype, txinterval, rxtype, rxinterval; | |
247 | u8 rxfifosz, txfifosz; | |
248 | u8 txfunaddr, txhubaddr, txhubport; | |
249 | u8 rxfunaddr, rxhubaddr, rxhubport; | |
250 | }; | |
251 | ||
252 | struct musb_context_registers { | |
253 | ||
7421107b | 254 | u8 power; |
7421107b FB |
255 | u8 intrusbe; |
256 | u16 frame; | |
257 | u8 index, testmode; | |
258 | ||
259 | u8 devctl, busctl, misc; | |
e25bec16 | 260 | u32 otg_interfsel; |
7421107b FB |
261 | |
262 | struct musb_csr_regs index_regs[MUSB_C_NUM_EPS]; | |
263 | }; | |
264 | ||
550a7375 FB |
265 | /* |
266 | * struct musb - Driver instance data. | |
267 | */ | |
268 | struct musb { | |
269 | /* device lock */ | |
270 | spinlock_t lock; | |
ea2f35c0 | 271 | spinlock_t list_lock; /* resume work list lock */ |
743411b3 | 272 | |
5450ac88 | 273 | struct musb_io io; |
743411b3 | 274 | const struct musb_platform_ops *ops; |
7421107b | 275 | struct musb_context_registers context; |
743411b3 | 276 | |
550a7375 | 277 | irqreturn_t (*isr)(int, void *); |
2bff3916 | 278 | struct delayed_work irq_work; |
8ed1fb79 DM |
279 | struct delayed_work deassert_reset_work; |
280 | struct delayed_work finish_resume_work; | |
517bafff | 281 | struct delayed_work gadget_work; |
32c3b94e | 282 | u16 hwvers; |
550a7375 | 283 | |
af5ec14d | 284 | u16 intrrxe; |
b18d26f6 | 285 | u16 intrtxe; |
550a7375 FB |
286 | /* this hub status bit is reserved by USB 2.0 and not seen by usbcore */ |
287 | #define MUSB_PORT_STAT_RESUME (1 << 31) | |
288 | ||
289 | u32 port1_status; | |
290 | ||
550a7375 FB |
291 | unsigned long rh_timer; |
292 | ||
293 | enum musb_h_ep0_state ep0_stage; | |
294 | ||
295 | /* bulk traffic normally dedicates endpoint hardware, and each | |
296 | * direction has its own ring of host side endpoints. | |
297 | * we try to progress the transfer at the head of each endpoint's | |
298 | * queue until it completes or NAKs too much; then we try the next | |
299 | * endpoint. | |
300 | */ | |
301 | struct musb_hw_ep *bulk_ep; | |
302 | ||
303 | struct list_head control; /* of musb_qh */ | |
304 | struct list_head in_bulk; /* of musb_qh */ | |
305 | struct list_head out_bulk; /* of musb_qh */ | |
ea2f35c0 | 306 | struct list_head pending_list; /* pending work list */ |
f7f9d63e DB |
307 | |
308 | struct timer_list otg_timer; | |
05678497 | 309 | struct timer_list dev_timer; |
594632ef | 310 | struct notifier_block nb; |
550a7375 | 311 | |
550a7375 FB |
312 | struct dma_controller *dma_controller; |
313 | ||
314 | struct device *controller; | |
315 | void __iomem *ctrl_base; | |
316 | void __iomem *mregs; | |
317 | ||
ebf39920 | 318 | #if IS_ENABLED(CONFIG_USB_MUSB_TUSB6010) |
550a7375 FB |
319 | dma_addr_t async; |
320 | dma_addr_t sync; | |
321 | void __iomem *sync_va; | |
8c240dc1 | 322 | u8 tusb_revision; |
550a7375 FB |
323 | #endif |
324 | ||
325 | /* passed down from chip/board specific irq handlers */ | |
326 | u8 int_usb; | |
327 | u16 int_rx; | |
328 | u16 int_tx; | |
329 | ||
86753811 | 330 | struct usb_phy *xceiv; |
3e3101d5 | 331 | struct phy *phy; |
550a7375 FB |
332 | |
333 | int nIrq; | |
c48a5155 | 334 | unsigned irq_wake:1; |
550a7375 FB |
335 | |
336 | struct musb_hw_ep endpoints[MUSB_C_NUM_EPS]; | |
337 | #define control_ep endpoints | |
338 | ||
339 | #define VBUSERR_RETRY_COUNT 3 | |
340 | u16 vbuserr_retry; | |
341 | u16 epmask; | |
342 | u8 nr_endpoints; | |
343 | ||
550a7375 FB |
344 | int (*board_set_power)(int state); |
345 | ||
550a7375 FB |
346 | u8 min_power; /* vbus for periph, in mA/2 */ |
347 | ||
7ad76955 | 348 | enum musb_mode port_mode; |
467d5c98 | 349 | bool session; |
2bff3916 | 350 | unsigned long quirk_retries; |
550a7375 FB |
351 | bool is_host; |
352 | ||
353 | int a_wait_bcon; /* VBUS timeout in msecs */ | |
354 | unsigned long idle_timeout; /* Next timeout in jiffies */ | |
355 | ||
c723bd6e | 356 | unsigned is_initialized:1; |
ea2f35c0 | 357 | unsigned is_runtime_suspended:1; |
c723bd6e | 358 | |
550a7375 FB |
359 | /* active means connected and not suspended */ |
360 | unsigned is_active:1; | |
361 | ||
362 | unsigned is_multipoint:1; | |
550a7375 | 363 | |
a483d706 AKG |
364 | unsigned hb_iso_rx:1; /* high bandwidth iso rx? */ |
365 | unsigned hb_iso_tx:1; /* high bandwidth iso tx? */ | |
51bf0d0e | 366 | unsigned dyn_fifo:1; /* dynamic FIFO supported? */ |
a483d706 | 367 | |
7ed069c1 | 368 | unsigned bulk_split:1; |
550a7375 | 369 | #define can_bulk_split(musb,type) \ |
7ed069c1 | 370 | (((type) == USB_ENDPOINT_XFER_BULK) && (musb)->bulk_split) |
550a7375 | 371 | |
7ed069c1 | 372 | unsigned bulk_combine:1; |
550a7375 | 373 | #define can_bulk_combine(musb,type) \ |
7ed069c1 | 374 | (((type) == USB_ENDPOINT_XFER_BULK) && (musb)->bulk_combine) |
550a7375 | 375 | |
550a7375 FB |
376 | /* is_suspended means USB B_PERIPHERAL suspend */ |
377 | unsigned is_suspended:1; | |
378 | ||
379 | /* may_wakeup means remote wakeup is enabled */ | |
380 | unsigned may_wakeup:1; | |
381 | ||
382 | /* is_self_powered is reported in device status and the | |
383 | * config descriptor. is_bus_powered means B_PERIPHERAL | |
384 | * draws some VBUS current; both can be true. | |
385 | */ | |
386 | unsigned is_self_powered:1; | |
387 | unsigned is_bus_powered:1; | |
388 | ||
389 | unsigned set_address:1; | |
390 | unsigned test_mode:1; | |
391 | unsigned softconnect:1; | |
5990378b | 392 | |
0c3aae9b JH |
393 | unsigned flush_irq_work:1; |
394 | ||
5990378b FB |
395 | u8 address; |
396 | u8 test_mode_nr; | |
397 | u16 ackpend; /* ep0 */ | |
398 | enum musb_g_ep0_state ep0_state; | |
399 | struct usb_gadget g; /* the gadget */ | |
400 | struct usb_gadget_driver *gadget_driver; /* its driver */ | |
74c2e936 | 401 | struct usb_hcd *hcd; /* the usb hcd */ |
5990378b | 402 | |
ead22caf | 403 | const struct musb_hdrc_config *config; |
ca6d1b13 | 404 | |
8d2421e6 AKG |
405 | int xceiv_old_state; |
406 | #ifdef CONFIG_DEBUG_FS | |
407 | struct dentry *debugfs_root; | |
550a7375 FB |
408 | #endif |
409 | }; | |
410 | ||
6cc2af6d HG |
411 | /* This must be included after struct musb is defined */ |
412 | #include "musb_regs.h" | |
413 | ||
550a7375 FB |
414 | static inline struct musb *gadget_to_musb(struct usb_gadget *g) |
415 | { | |
416 | return container_of(g, struct musb, g); | |
417 | } | |
550a7375 | 418 | |
0ccbadaf BL |
419 | static inline char *musb_ep_xfertype_string(u8 type) |
420 | { | |
421 | char *s; | |
422 | ||
423 | switch (type) { | |
424 | case USB_ENDPOINT_XFER_CONTROL: | |
425 | s = "ctrl"; | |
426 | break; | |
427 | case USB_ENDPOINT_XFER_ISOC: | |
428 | s = "iso"; | |
429 | break; | |
430 | case USB_ENDPOINT_XFER_BULK: | |
431 | s = "bulk"; | |
432 | break; | |
433 | case USB_ENDPOINT_XFER_INT: | |
434 | s = "int"; | |
435 | break; | |
436 | default: | |
437 | s = ""; | |
438 | break; | |
439 | } | |
440 | return s; | |
441 | } | |
442 | ||
c6cf8b00 BW |
443 | static inline int musb_read_fifosize(struct musb *musb, |
444 | struct musb_hw_ep *hw_ep, u8 epnum) | |
445 | { | |
a156544b | 446 | void __iomem *mbase = musb->mregs; |
c6cf8b00 BW |
447 | u8 reg = 0; |
448 | ||
449 | /* read from core using indexed model */ | |
d026e9c7 | 450 | reg = musb_readb(mbase, musb->io.ep_offset(epnum, MUSB_FIFOSIZE)); |
c6cf8b00 BW |
451 | /* 0's returned when no more endpoints */ |
452 | if (!reg) | |
453 | return -ENODEV; | |
454 | ||
455 | musb->nr_endpoints++; | |
456 | musb->epmask |= (1 << epnum); | |
457 | ||
458 | hw_ep->max_packet_sz_tx = 1 << (reg & 0x0f); | |
459 | ||
460 | /* shared TX/RX FIFO? */ | |
461 | if ((reg & 0xf0) == 0xf0) { | |
462 | hw_ep->max_packet_sz_rx = hw_ep->max_packet_sz_tx; | |
463 | hw_ep->is_shared_fifo = true; | |
464 | return 0; | |
465 | } else { | |
466 | hw_ep->max_packet_sz_rx = 1 << ((reg & 0xf0) >> 4); | |
467 | hw_ep->is_shared_fifo = false; | |
468 | } | |
469 | ||
470 | return 0; | |
471 | } | |
472 | ||
473 | static inline void musb_configure_ep0(struct musb *musb) | |
474 | { | |
475 | musb->endpoints[0].max_packet_sz_tx = MUSB_EP0_FIFOSIZE; | |
476 | musb->endpoints[0].max_packet_sz_rx = MUSB_EP0_FIFOSIZE; | |
32233716 | 477 | musb->endpoints[0].is_shared_fifo = true; |
c6cf8b00 | 478 | } |
550a7375 FB |
479 | |
480 | /***************************** Glue it together *****************************/ | |
481 | ||
482 | extern const char musb_driver_name[]; | |
483 | ||
550a7375 | 484 | extern void musb_stop(struct musb *musb); |
001dd84a | 485 | extern void musb_start(struct musb *musb); |
550a7375 FB |
486 | |
487 | extern void musb_write_fifo(struct musb_hw_ep *ep, u16 len, const u8 *src); | |
488 | extern void musb_read_fifo(struct musb_hw_ep *ep, u16 len, u8 *dst); | |
489 | ||
490 | extern void musb_load_testpacket(struct musb *); | |
491 | ||
492 | extern irqreturn_t musb_interrupt(struct musb *); | |
493 | ||
550a7375 FB |
494 | extern void musb_hnp_stop(struct musb *musb); |
495 | ||
ea2f35c0 TL |
496 | int musb_queue_resume_work(struct musb *musb, |
497 | int (*callback)(struct musb *musb, void *data), | |
498 | void *data); | |
499 | ||
743411b3 FB |
500 | static inline void musb_platform_set_vbus(struct musb *musb, int is_on) |
501 | { | |
502 | if (musb->ops->set_vbus) | |
503 | musb->ops->set_vbus(musb, is_on); | |
504 | } | |
505 | ||
506 | static inline void musb_platform_enable(struct musb *musb) | |
507 | { | |
508 | if (musb->ops->enable) | |
509 | musb->ops->enable(musb); | |
510 | } | |
511 | ||
512 | static inline void musb_platform_disable(struct musb *musb) | |
513 | { | |
514 | if (musb->ops->disable) | |
515 | musb->ops->disable(musb); | |
516 | } | |
517 | ||
518 | static inline int musb_platform_set_mode(struct musb *musb, u8 mode) | |
519 | { | |
520 | if (!musb->ops->set_mode) | |
521 | return 0; | |
522 | ||
523 | return musb->ops->set_mode(musb, mode); | |
524 | } | |
525 | ||
526 | static inline void musb_platform_try_idle(struct musb *musb, | |
527 | unsigned long timeout) | |
528 | { | |
529 | if (musb->ops->try_idle) | |
530 | musb->ops->try_idle(musb, timeout); | |
531 | } | |
532 | ||
b28a6432 | 533 | static inline int musb_platform_recover(struct musb *musb) |
1e42d20c | 534 | { |
b28a6432 FB |
535 | if (!musb->ops->recover) |
536 | return 0; | |
d871c622 | 537 | |
b28a6432 | 538 | return musb->ops->recover(musb); |
1e42d20c DM |
539 | } |
540 | ||
743411b3 FB |
541 | static inline int musb_platform_get_vbus_status(struct musb *musb) |
542 | { | |
543 | if (!musb->ops->vbus_status) | |
3bbafac8 | 544 | return -EINVAL; |
743411b3 FB |
545 | |
546 | return musb->ops->vbus_status(musb); | |
547 | } | |
548 | ||
549 | static inline int musb_platform_init(struct musb *musb) | |
550 | { | |
551 | if (!musb->ops->init) | |
552 | return -EINVAL; | |
553 | ||
554 | return musb->ops->init(musb); | |
555 | } | |
556 | ||
557 | static inline int musb_platform_exit(struct musb *musb) | |
558 | { | |
559 | if (!musb->ops->exit) | |
560 | return -EINVAL; | |
561 | ||
562 | return musb->ops->exit(musb); | |
563 | } | |
564 | ||
591fa9dd HG |
565 | static inline void musb_platform_pre_root_reset_end(struct musb *musb) |
566 | { | |
567 | if (musb->ops->pre_root_reset_end) | |
568 | musb->ops->pre_root_reset_end(musb); | |
569 | } | |
570 | ||
571 | static inline void musb_platform_post_root_reset_end(struct musb *musb) | |
572 | { | |
573 | if (musb->ops->post_root_reset_end) | |
574 | musb->ops->post_root_reset_end(musb); | |
575 | } | |
576 | ||
6def85a3 BL |
577 | static inline void musb_platform_clear_ep_rxintr(struct musb *musb, int epnum) |
578 | { | |
579 | if (musb->ops->clear_ep_rxintr) | |
580 | musb->ops->clear_ep_rxintr(musb, epnum); | |
581 | } | |
582 | ||
830fc64c PK |
583 | /* |
584 | * gets the "dr_mode" property from DT and converts it into musb_mode | |
585 | * if the property is not found or not recognized returns MUSB_OTG | |
586 | */ | |
587 | extern enum musb_mode musb_get_mode(struct device *dev); | |
588 | ||
550a7375 | 589 | #endif /* __MUSB_CORE_H__ */ |