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5fd54ace | 1 | // SPDX-License-Identifier: GPL-1.0+ |
2f98382d KM |
2 | /* |
3 | * Renesas USB driver | |
4 | * | |
5 | * Copyright (C) 2011 Renesas Solutions Corp. | |
0966648d | 6 | * Copyright (C) 2019 Renesas Electronics Corporation |
2f98382d | 7 | * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> |
2f98382d | 8 | */ |
dfbb7f4f | 9 | #include <linux/delay.h> |
d128a259 | 10 | #include <linux/dma-mapping.h> |
2f98382d KM |
11 | #include <linux/io.h> |
12 | #include <linux/module.h> | |
13 | #include <linux/platform_device.h> | |
14 | #include <linux/usb/ch9.h> | |
15 | #include <linux/usb/gadget.h> | |
b5a28756 | 16 | #include <linux/usb/otg.h> |
2f98382d KM |
17 | #include "common.h" |
18 | ||
19 | /* | |
20 | * struct | |
21 | */ | |
22 | struct usbhsg_request { | |
23 | struct usb_request req; | |
4bd04811 | 24 | struct usbhs_pkt pkt; |
2f98382d KM |
25 | }; |
26 | ||
27 | #define EP_NAME_SIZE 8 | |
28 | struct usbhsg_gpriv; | |
2f98382d KM |
29 | struct usbhsg_uep { |
30 | struct usb_ep ep; | |
31 | struct usbhs_pipe *pipe; | |
b8b9c974 | 32 | spinlock_t lock; /* protect the pipe */ |
2f98382d KM |
33 | |
34 | char ep_name[EP_NAME_SIZE]; | |
35 | ||
36 | struct usbhsg_gpriv *gpriv; | |
2f98382d KM |
37 | }; |
38 | ||
39 | struct usbhsg_gpriv { | |
40 | struct usb_gadget gadget; | |
41 | struct usbhs_mod mod; | |
42 | ||
43 | struct usbhsg_uep *uep; | |
44 | int uep_size; | |
45 | ||
46 | struct usb_gadget_driver *driver; | |
b5a28756 PE |
47 | struct usb_phy *transceiver; |
48 | bool vbus_active; | |
2f98382d KM |
49 | |
50 | u32 status; | |
51 | #define USBHSG_STATUS_STARTED (1 << 0) | |
52 | #define USBHSG_STATUS_REGISTERD (1 << 1) | |
53 | #define USBHSG_STATUS_WEDGE (1 << 2) | |
cac402dd | 54 | #define USBHSG_STATUS_SELF_POWERED (1 << 3) |
04a5def3 | 55 | #define USBHSG_STATUS_SOFT_CONNECT (1 << 4) |
2f98382d KM |
56 | }; |
57 | ||
2f98382d KM |
58 | struct usbhsg_recip_handle { |
59 | char *name; | |
60 | int (*device)(struct usbhs_priv *priv, struct usbhsg_uep *uep, | |
61 | struct usb_ctrlrequest *ctrl); | |
62 | int (*interface)(struct usbhs_priv *priv, struct usbhsg_uep *uep, | |
63 | struct usb_ctrlrequest *ctrl); | |
64 | int (*endpoint)(struct usbhs_priv *priv, struct usbhsg_uep *uep, | |
65 | struct usb_ctrlrequest *ctrl); | |
66 | }; | |
67 | ||
68 | /* | |
69 | * macro | |
70 | */ | |
71 | #define usbhsg_priv_to_gpriv(priv) \ | |
72 | container_of( \ | |
73 | usbhs_mod_get(priv, USBHS_GADGET), \ | |
74 | struct usbhsg_gpriv, mod) | |
75 | ||
76 | #define __usbhsg_for_each_uep(start, pos, g, i) \ | |
925403f4 KM |
77 | for ((i) = start; \ |
78 | ((i) < (g)->uep_size) && ((pos) = (g)->uep + (i)); \ | |
79 | (i)++) | |
2f98382d KM |
80 | |
81 | #define usbhsg_for_each_uep(pos, gpriv, i) \ | |
82 | __usbhsg_for_each_uep(1, pos, gpriv, i) | |
83 | ||
84 | #define usbhsg_for_each_uep_with_dcp(pos, gpriv, i) \ | |
85 | __usbhsg_for_each_uep(0, pos, gpriv, i) | |
86 | ||
87 | #define usbhsg_gadget_to_gpriv(g)\ | |
88 | container_of(g, struct usbhsg_gpriv, gadget) | |
89 | ||
90 | #define usbhsg_req_to_ureq(r)\ | |
91 | container_of(r, struct usbhsg_request, req) | |
92 | ||
93 | #define usbhsg_ep_to_uep(e) container_of(e, struct usbhsg_uep, ep) | |
2f98382d KM |
94 | #define usbhsg_gpriv_to_dev(gp) usbhs_priv_to_dev((gp)->mod.priv) |
95 | #define usbhsg_gpriv_to_priv(gp) ((gp)->mod.priv) | |
96 | #define usbhsg_gpriv_to_dcp(gp) ((gp)->uep) | |
97 | #define usbhsg_gpriv_to_nth_uep(gp, i) ((gp)->uep + i) | |
98 | #define usbhsg_uep_to_gpriv(u) ((u)->gpriv) | |
99 | #define usbhsg_uep_to_pipe(u) ((u)->pipe) | |
100 | #define usbhsg_pipe_to_uep(p) ((p)->mod_private) | |
101 | #define usbhsg_is_dcp(u) ((u) == usbhsg_gpriv_to_dcp((u)->gpriv)) | |
102 | ||
4bd04811 KM |
103 | #define usbhsg_ureq_to_pkt(u) (&(u)->pkt) |
104 | #define usbhsg_pkt_to_ureq(i) \ | |
105 | container_of(i, struct usbhsg_request, pkt) | |
106 | ||
2f98382d KM |
107 | #define usbhsg_is_not_connected(gp) ((gp)->gadget.speed == USB_SPEED_UNKNOWN) |
108 | ||
109 | /* status */ | |
110 | #define usbhsg_status_init(gp) do {(gp)->status = 0; } while (0) | |
111 | #define usbhsg_status_set(gp, b) (gp->status |= b) | |
112 | #define usbhsg_status_clr(gp, b) (gp->status &= ~b) | |
113 | #define usbhsg_status_has(gp, b) (gp->status & b) | |
114 | ||
115 | /* | |
233f519d | 116 | * queue push/pop |
2f98382d | 117 | */ |
00f30d29 YS |
118 | static void __usbhsg_queue_pop(struct usbhsg_uep *uep, |
119 | struct usbhsg_request *ureq, | |
120 | int status) | |
2f98382d KM |
121 | { |
122 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
123 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
124 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
00f30d29 | 125 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); |
2f98382d | 126 | |
c9eb2950 YS |
127 | if (pipe) |
128 | dev_dbg(dev, "pipe %d : queue pop\n", usbhs_pipe_number(pipe)); | |
2f98382d | 129 | |
2f98382d | 130 | ureq->req.status = status; |
00f30d29 | 131 | spin_unlock(usbhs_priv_to_lock(priv)); |
304f7e5e | 132 | usb_gadget_giveback_request(&uep->ep, &ureq->req); |
00f30d29 YS |
133 | spin_lock(usbhs_priv_to_lock(priv)); |
134 | } | |
135 | ||
136 | static void usbhsg_queue_pop(struct usbhsg_uep *uep, | |
137 | struct usbhsg_request *ureq, | |
138 | int status) | |
139 | { | |
140 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
141 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); | |
142 | unsigned long flags; | |
143 | ||
144 | usbhs_lock(priv, flags); | |
145 | __usbhsg_queue_pop(uep, ureq, status); | |
146 | usbhs_unlock(priv, flags); | |
2f98382d KM |
147 | } |
148 | ||
2cc97197 | 149 | static void usbhsg_queue_done(struct usbhs_priv *priv, struct usbhs_pkt *pkt) |
2f98382d | 150 | { |
4bd04811 KM |
151 | struct usbhs_pipe *pipe = pkt->pipe; |
152 | struct usbhsg_uep *uep = usbhsg_pipe_to_uep(pipe); | |
153 | struct usbhsg_request *ureq = usbhsg_pkt_to_ureq(pkt); | |
4fccb076 | 154 | unsigned long flags; |
2f98382d | 155 | |
659d4954 | 156 | ureq->req.actual = pkt->actual; |
2f98382d | 157 | |
4fccb076 YS |
158 | usbhs_lock(priv, flags); |
159 | if (uep) | |
160 | __usbhsg_queue_pop(uep, ureq, 0); | |
161 | usbhs_unlock(priv, flags); | |
4bd04811 KM |
162 | } |
163 | ||
b331872b KM |
164 | static void usbhsg_queue_push(struct usbhsg_uep *uep, |
165 | struct usbhsg_request *ureq) | |
166 | { | |
167 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
168 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
169 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
170 | struct usbhs_pkt *pkt = usbhsg_ureq_to_pkt(ureq); | |
171 | struct usb_request *req = &ureq->req; | |
172 | ||
173 | req->actual = 0; | |
174 | req->status = -EINPROGRESS; | |
175 | usbhs_pkt_push(pipe, pkt, usbhsg_queue_done, | |
3edeee38 | 176 | req->buf, req->length, req->zero, -1); |
654c35ab | 177 | usbhs_pkt_start(pipe); |
b331872b KM |
178 | |
179 | dev_dbg(dev, "pipe %d : queue push (%d)\n", | |
180 | usbhs_pipe_number(pipe), | |
181 | req->length); | |
182 | } | |
183 | ||
233f519d KM |
184 | /* |
185 | * dma map/unmap | |
186 | */ | |
c3cdcac7 YS |
187 | static int usbhsg_dma_map_ctrl(struct device *dma_dev, struct usbhs_pkt *pkt, |
188 | int map) | |
e73a9891 KM |
189 | { |
190 | struct usbhsg_request *ureq = usbhsg_pkt_to_ureq(pkt); | |
191 | struct usb_request *req = &ureq->req; | |
e73a9891 | 192 | struct usbhs_pipe *pipe = pkt->pipe; |
e73a9891 | 193 | enum dma_data_direction dir; |
ade78f9f | 194 | int ret = 0; |
e73a9891 | 195 | |
ade78f9f | 196 | dir = usbhs_pipe_is_dir_host(pipe); |
e73a9891 | 197 | |
ade78f9f FB |
198 | if (map) { |
199 | /* it can not use scatter/gather */ | |
200 | WARN_ON(req->num_sgs); | |
201 | ||
b41d8a6a | 202 | ret = usb_gadget_map_request_by_dev(dma_dev, req, dir); |
ade78f9f FB |
203 | if (ret < 0) |
204 | return ret; | |
205 | ||
206 | pkt->dma = req->dma; | |
207 | } else { | |
b41d8a6a | 208 | usb_gadget_unmap_request_by_dev(dma_dev, req, dir); |
ade78f9f FB |
209 | } |
210 | ||
211 | return ret; | |
e73a9891 KM |
212 | } |
213 | ||
2f98382d KM |
214 | /* |
215 | * USB_TYPE_STANDARD / clear feature functions | |
216 | */ | |
217 | static int usbhsg_recip_handler_std_control_done(struct usbhs_priv *priv, | |
218 | struct usbhsg_uep *uep, | |
219 | struct usb_ctrlrequest *ctrl) | |
220 | { | |
221 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
222 | struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); | |
223 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp); | |
224 | ||
225 | usbhs_dcp_control_transfer_done(pipe); | |
226 | ||
227 | return 0; | |
228 | } | |
229 | ||
230 | static int usbhsg_recip_handler_std_clear_endpoint(struct usbhs_priv *priv, | |
231 | struct usbhsg_uep *uep, | |
232 | struct usb_ctrlrequest *ctrl) | |
233 | { | |
234 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
235 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
236 | ||
237 | if (!usbhsg_status_has(gpriv, USBHSG_STATUS_WEDGE)) { | |
e8d548d5 | 238 | usbhs_pipe_disable(pipe); |
6e6db82b | 239 | usbhs_pipe_sequence_data0(pipe); |
e8d548d5 | 240 | usbhs_pipe_enable(pipe); |
2f98382d KM |
241 | } |
242 | ||
243 | usbhsg_recip_handler_std_control_done(priv, uep, ctrl); | |
244 | ||
25fa7079 KM |
245 | usbhs_pkt_start(pipe); |
246 | ||
2f98382d KM |
247 | return 0; |
248 | } | |
249 | ||
225da3e3 | 250 | static struct usbhsg_recip_handle req_clear_feature = { |
2f98382d KM |
251 | .name = "clear feature", |
252 | .device = usbhsg_recip_handler_std_control_done, | |
253 | .interface = usbhsg_recip_handler_std_control_done, | |
254 | .endpoint = usbhsg_recip_handler_std_clear_endpoint, | |
255 | }; | |
256 | ||
ced6e09e KM |
257 | /* |
258 | * USB_TYPE_STANDARD / set feature functions | |
259 | */ | |
dfbb7f4f KM |
260 | static int usbhsg_recip_handler_std_set_device(struct usbhs_priv *priv, |
261 | struct usbhsg_uep *uep, | |
262 | struct usb_ctrlrequest *ctrl) | |
263 | { | |
264 | switch (le16_to_cpu(ctrl->wValue)) { | |
265 | case USB_DEVICE_TEST_MODE: | |
266 | usbhsg_recip_handler_std_control_done(priv, uep, ctrl); | |
267 | udelay(100); | |
268 | usbhs_sys_set_test_mode(priv, le16_to_cpu(ctrl->wIndex >> 8)); | |
269 | break; | |
270 | default: | |
271 | usbhsg_recip_handler_std_control_done(priv, uep, ctrl); | |
272 | break; | |
273 | } | |
274 | ||
275 | return 0; | |
276 | } | |
277 | ||
ced6e09e KM |
278 | static int usbhsg_recip_handler_std_set_endpoint(struct usbhs_priv *priv, |
279 | struct usbhsg_uep *uep, | |
280 | struct usb_ctrlrequest *ctrl) | |
281 | { | |
282 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
283 | ||
284 | usbhs_pipe_stall(pipe); | |
285 | ||
286 | usbhsg_recip_handler_std_control_done(priv, uep, ctrl); | |
287 | ||
288 | return 0; | |
289 | } | |
290 | ||
225da3e3 | 291 | static struct usbhsg_recip_handle req_set_feature = { |
ced6e09e | 292 | .name = "set feature", |
dfbb7f4f | 293 | .device = usbhsg_recip_handler_std_set_device, |
ced6e09e KM |
294 | .interface = usbhsg_recip_handler_std_control_done, |
295 | .endpoint = usbhsg_recip_handler_std_set_endpoint, | |
296 | }; | |
297 | ||
17f7f769 KM |
298 | /* |
299 | * USB_TYPE_STANDARD / get status functions | |
300 | */ | |
301 | static void __usbhsg_recip_send_complete(struct usb_ep *ep, | |
302 | struct usb_request *req) | |
303 | { | |
304 | struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); | |
305 | ||
306 | /* free allocated recip-buffer/usb_request */ | |
307 | kfree(ureq->pkt.buf); | |
308 | usb_ep_free_request(ep, req); | |
309 | } | |
310 | ||
311 | static void __usbhsg_recip_send_status(struct usbhsg_gpriv *gpriv, | |
312 | unsigned short status) | |
313 | { | |
314 | struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); | |
315 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp); | |
316 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
317 | struct usb_request *req; | |
318 | unsigned short *buf; | |
319 | ||
320 | /* alloc new usb_request for recip */ | |
321 | req = usb_ep_alloc_request(&dcp->ep, GFP_ATOMIC); | |
322 | if (!req) { | |
323 | dev_err(dev, "recip request allocation fail\n"); | |
324 | return; | |
325 | } | |
326 | ||
327 | /* alloc recip data buffer */ | |
328 | buf = kmalloc(sizeof(*buf), GFP_ATOMIC); | |
329 | if (!buf) { | |
330 | usb_ep_free_request(&dcp->ep, req); | |
17f7f769 KM |
331 | return; |
332 | } | |
333 | ||
334 | /* recip data is status */ | |
335 | *buf = cpu_to_le16(status); | |
336 | ||
337 | /* allocated usb_request/buffer will be freed */ | |
338 | req->complete = __usbhsg_recip_send_complete; | |
339 | req->buf = buf; | |
340 | req->length = sizeof(*buf); | |
341 | req->zero = 0; | |
342 | ||
343 | /* push packet */ | |
344 | pipe->handler = &usbhs_fifo_pio_push_handler; | |
345 | usbhsg_queue_push(dcp, usbhsg_req_to_ureq(req)); | |
346 | } | |
347 | ||
348 | static int usbhsg_recip_handler_std_get_device(struct usbhs_priv *priv, | |
349 | struct usbhsg_uep *uep, | |
350 | struct usb_ctrlrequest *ctrl) | |
351 | { | |
352 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
cac402dd SY |
353 | unsigned short status = 0; |
354 | ||
355 | if (usbhsg_status_has(gpriv, USBHSG_STATUS_SELF_POWERED)) | |
356 | status = 1 << USB_DEVICE_SELF_POWERED; | |
17f7f769 KM |
357 | |
358 | __usbhsg_recip_send_status(gpriv, status); | |
359 | ||
360 | return 0; | |
361 | } | |
362 | ||
363 | static int usbhsg_recip_handler_std_get_interface(struct usbhs_priv *priv, | |
364 | struct usbhsg_uep *uep, | |
365 | struct usb_ctrlrequest *ctrl) | |
366 | { | |
367 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
368 | unsigned short status = 0; | |
369 | ||
370 | __usbhsg_recip_send_status(gpriv, status); | |
371 | ||
372 | return 0; | |
373 | } | |
374 | ||
375 | static int usbhsg_recip_handler_std_get_endpoint(struct usbhs_priv *priv, | |
376 | struct usbhsg_uep *uep, | |
377 | struct usb_ctrlrequest *ctrl) | |
378 | { | |
379 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
380 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
381 | unsigned short status = 0; | |
382 | ||
383 | if (usbhs_pipe_is_stall(pipe)) | |
384 | status = 1 << USB_ENDPOINT_HALT; | |
385 | ||
386 | __usbhsg_recip_send_status(gpriv, status); | |
387 | ||
388 | return 0; | |
389 | } | |
390 | ||
225da3e3 | 391 | static struct usbhsg_recip_handle req_get_status = { |
17f7f769 KM |
392 | .name = "get status", |
393 | .device = usbhsg_recip_handler_std_get_device, | |
394 | .interface = usbhsg_recip_handler_std_get_interface, | |
395 | .endpoint = usbhsg_recip_handler_std_get_endpoint, | |
396 | }; | |
397 | ||
2f98382d KM |
398 | /* |
399 | * USB_TYPE handler | |
400 | */ | |
401 | static int usbhsg_recip_run_handle(struct usbhs_priv *priv, | |
402 | struct usbhsg_recip_handle *handler, | |
403 | struct usb_ctrlrequest *ctrl) | |
404 | { | |
405 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
406 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
407 | struct usbhsg_uep *uep; | |
0432eed0 | 408 | struct usbhs_pipe *pipe; |
2f98382d KM |
409 | int recip = ctrl->bRequestType & USB_RECIP_MASK; |
410 | int nth = le16_to_cpu(ctrl->wIndex) & USB_ENDPOINT_NUMBER_MASK; | |
7983bc74 | 411 | int ret = 0; |
2f98382d KM |
412 | int (*func)(struct usbhs_priv *priv, struct usbhsg_uep *uep, |
413 | struct usb_ctrlrequest *ctrl); | |
414 | char *msg; | |
415 | ||
416 | uep = usbhsg_gpriv_to_nth_uep(gpriv, nth); | |
0432eed0 KM |
417 | pipe = usbhsg_uep_to_pipe(uep); |
418 | if (!pipe) { | |
9a28b7bd | 419 | dev_err(dev, "wrong recip request\n"); |
25fa7079 | 420 | return -EINVAL; |
9a28b7bd | 421 | } |
2f98382d KM |
422 | |
423 | switch (recip) { | |
424 | case USB_RECIP_DEVICE: | |
425 | msg = "DEVICE"; | |
426 | func = handler->device; | |
427 | break; | |
428 | case USB_RECIP_INTERFACE: | |
429 | msg = "INTERFACE"; | |
430 | func = handler->interface; | |
431 | break; | |
432 | case USB_RECIP_ENDPOINT: | |
433 | msg = "ENDPOINT"; | |
434 | func = handler->endpoint; | |
435 | break; | |
436 | default: | |
437 | dev_warn(dev, "unsupported RECIP(%d)\n", recip); | |
438 | func = NULL; | |
439 | ret = -EINVAL; | |
440 | } | |
441 | ||
442 | if (func) { | |
443 | dev_dbg(dev, "%s (pipe %d :%s)\n", handler->name, nth, msg); | |
444 | ret = func(priv, uep, ctrl); | |
445 | } | |
446 | ||
447 | return ret; | |
448 | } | |
449 | ||
450 | /* | |
451 | * irq functions | |
452 | * | |
453 | * it will be called from usbhs_interrupt | |
454 | */ | |
455 | static int usbhsg_irq_dev_state(struct usbhs_priv *priv, | |
456 | struct usbhs_irq_state *irq_state) | |
457 | { | |
458 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
459 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
460 | ||
75587f52 | 461 | gpriv->gadget.speed = usbhs_bus_get_speed(priv); |
2f98382d KM |
462 | |
463 | dev_dbg(dev, "state = %x : speed : %d\n", | |
464 | usbhs_status_get_device_state(irq_state), | |
465 | gpriv->gadget.speed); | |
466 | ||
467 | return 0; | |
468 | } | |
469 | ||
470 | static int usbhsg_irq_ctrl_stage(struct usbhs_priv *priv, | |
471 | struct usbhs_irq_state *irq_state) | |
472 | { | |
473 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
474 | struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); | |
475 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp); | |
476 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
477 | struct usb_ctrlrequest ctrl; | |
478 | struct usbhsg_recip_handle *recip_handler = NULL; | |
479 | int stage = usbhs_status_get_ctrl_stage(irq_state); | |
480 | int ret = 0; | |
481 | ||
482 | dev_dbg(dev, "stage = %d\n", stage); | |
483 | ||
484 | /* | |
485 | * see Manual | |
486 | * | |
487 | * "Operation" | |
488 | * - "Interrupt Function" | |
489 | * - "Control Transfer Stage Transition Interrupt" | |
490 | * - Fig. "Control Transfer Stage Transitions" | |
491 | */ | |
492 | ||
493 | switch (stage) { | |
494 | case READ_DATA_STAGE: | |
0c6ef985 | 495 | pipe->handler = &usbhs_fifo_pio_push_handler; |
2f98382d KM |
496 | break; |
497 | case WRITE_DATA_STAGE: | |
0c6ef985 | 498 | pipe->handler = &usbhs_fifo_pio_pop_handler; |
2f98382d KM |
499 | break; |
500 | case NODATA_STATUS_STAGE: | |
0c6ef985 | 501 | pipe->handler = &usbhs_ctrl_stage_end_handler; |
2f98382d | 502 | break; |
4ef35b10 YS |
503 | case READ_STATUS_STAGE: |
504 | case WRITE_STATUS_STAGE: | |
505 | usbhs_dcp_control_transfer_done(pipe); | |
25b22e35 | 506 | /* fall through */ |
2f98382d KM |
507 | default: |
508 | return ret; | |
509 | } | |
510 | ||
511 | /* | |
512 | * get usb request | |
513 | */ | |
514 | usbhs_usbreq_get_val(priv, &ctrl); | |
515 | ||
516 | switch (ctrl.bRequestType & USB_TYPE_MASK) { | |
517 | case USB_TYPE_STANDARD: | |
518 | switch (ctrl.bRequest) { | |
519 | case USB_REQ_CLEAR_FEATURE: | |
520 | recip_handler = &req_clear_feature; | |
521 | break; | |
ced6e09e KM |
522 | case USB_REQ_SET_FEATURE: |
523 | recip_handler = &req_set_feature; | |
524 | break; | |
17f7f769 KM |
525 | case USB_REQ_GET_STATUS: |
526 | recip_handler = &req_get_status; | |
527 | break; | |
2f98382d KM |
528 | } |
529 | } | |
530 | ||
531 | /* | |
532 | * setup stage / run recip | |
533 | */ | |
534 | if (recip_handler) | |
535 | ret = usbhsg_recip_run_handle(priv, recip_handler, &ctrl); | |
536 | else | |
537 | ret = gpriv->driver->setup(&gpriv->gadget, &ctrl); | |
538 | ||
539 | if (ret < 0) | |
e8d548d5 | 540 | usbhs_pipe_stall(pipe); |
2f98382d KM |
541 | |
542 | return ret; | |
543 | } | |
544 | ||
2f98382d KM |
545 | /* |
546 | * | |
547 | * usb_dcp_ops | |
548 | * | |
549 | */ | |
2f98382d KM |
550 | static int usbhsg_pipe_disable(struct usbhsg_uep *uep) |
551 | { | |
552 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
8a2c225d | 553 | struct usbhs_pkt *pkt; |
2f98382d | 554 | |
2f98382d | 555 | while (1) { |
97664a20 | 556 | pkt = usbhs_pkt_pop(pipe, NULL); |
8a2c225d | 557 | if (!pkt) |
2f98382d | 558 | break; |
91b158f4 | 559 | |
11ebf3ad | 560 | usbhsg_queue_pop(uep, usbhsg_pkt_to_ureq(pkt), -ESHUTDOWN); |
2f98382d KM |
561 | } |
562 | ||
91b158f4 KM |
563 | usbhs_pipe_disable(pipe); |
564 | ||
2f98382d KM |
565 | return 0; |
566 | } | |
567 | ||
568 | /* | |
569 | * | |
570 | * usb_ep_ops | |
571 | * | |
572 | */ | |
573 | static int usbhsg_ep_enable(struct usb_ep *ep, | |
574 | const struct usb_endpoint_descriptor *desc) | |
575 | { | |
576 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
577 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
578 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); | |
579 | struct usbhs_pipe *pipe; | |
2f98382d | 580 | int ret = -EIO; |
15e4292a YS |
581 | unsigned long flags; |
582 | ||
583 | usbhs_lock(priv, flags); | |
2f98382d | 584 | |
409ba9e7 KM |
585 | /* |
586 | * if it already have pipe, | |
587 | * nothing to do | |
588 | */ | |
08e6c611 KM |
589 | if (uep->pipe) { |
590 | usbhs_pipe_clear(uep->pipe); | |
6e6db82b | 591 | usbhs_pipe_sequence_data0(uep->pipe); |
15e4292a YS |
592 | ret = 0; |
593 | goto usbhsg_ep_enable_end; | |
08e6c611 | 594 | } |
409ba9e7 | 595 | |
f5aa889f KM |
596 | pipe = usbhs_pipe_malloc(priv, |
597 | usb_endpoint_type(desc), | |
598 | usb_endpoint_dir_in(desc)); | |
2f98382d KM |
599 | if (pipe) { |
600 | uep->pipe = pipe; | |
601 | pipe->mod_private = uep; | |
2f98382d | 602 | |
f5aa889f | 603 | /* set epnum / maxp */ |
bc6fbf59 | 604 | usbhs_pipe_config_update(pipe, 0, |
f5aa889f KM |
605 | usb_endpoint_num(desc), |
606 | usb_endpoint_maxp(desc)); | |
607 | ||
233f519d KM |
608 | /* |
609 | * usbhs_fifo_dma_push/pop_handler try to | |
610 | * use dmaengine if possible. | |
611 | * It will use pio handler if impossible. | |
612 | */ | |
9ab967e6 | 613 | if (usb_endpoint_dir_in(desc)) { |
0c6ef985 | 614 | pipe->handler = &usbhs_fifo_dma_push_handler; |
9ab967e6 | 615 | } else { |
0c6ef985 | 616 | pipe->handler = &usbhs_fifo_dma_pop_handler; |
9ab967e6 YS |
617 | usbhs_xxxsts_clear(priv, BRDYSTS, |
618 | usbhs_pipe_number(pipe)); | |
619 | } | |
2f98382d KM |
620 | |
621 | ret = 0; | |
622 | } | |
cb96632c | 623 | |
15e4292a YS |
624 | usbhsg_ep_enable_end: |
625 | usbhs_unlock(priv, flags); | |
626 | ||
2f98382d KM |
627 | return ret; |
628 | } | |
629 | ||
630 | static int usbhsg_ep_disable(struct usb_ep *ep) | |
631 | { | |
632 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
b8b9c974 YS |
633 | struct usbhs_pipe *pipe; |
634 | unsigned long flags; | |
2f98382d | 635 | |
b8b9c974 YS |
636 | spin_lock_irqsave(&uep->lock, flags); |
637 | pipe = usbhsg_uep_to_pipe(uep); | |
b7d44c36 | 638 | if (!pipe) |
b8b9c974 | 639 | goto out; |
11432050 | 640 | |
d9fa298f | 641 | usbhsg_pipe_disable(uep); |
dfb87b8b | 642 | usbhs_pipe_free(pipe); |
d9fa298f KM |
643 | |
644 | uep->pipe->mod_private = NULL; | |
645 | uep->pipe = NULL; | |
646 | ||
b8b9c974 YS |
647 | out: |
648 | spin_unlock_irqrestore(&uep->lock, flags); | |
649 | ||
d9fa298f | 650 | return 0; |
2f98382d KM |
651 | } |
652 | ||
653 | static struct usb_request *usbhsg_ep_alloc_request(struct usb_ep *ep, | |
654 | gfp_t gfp_flags) | |
655 | { | |
656 | struct usbhsg_request *ureq; | |
657 | ||
658 | ureq = kzalloc(sizeof *ureq, gfp_flags); | |
659 | if (!ureq) | |
660 | return NULL; | |
661 | ||
6acb95d4 KM |
662 | usbhs_pkt_init(usbhsg_ureq_to_pkt(ureq)); |
663 | ||
2f98382d KM |
664 | return &ureq->req; |
665 | } | |
666 | ||
667 | static void usbhsg_ep_free_request(struct usb_ep *ep, | |
668 | struct usb_request *req) | |
669 | { | |
670 | struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); | |
671 | ||
6acb95d4 | 672 | WARN_ON(!list_empty(&ureq->pkt.node)); |
2f98382d KM |
673 | kfree(ureq); |
674 | } | |
675 | ||
676 | static int usbhsg_ep_queue(struct usb_ep *ep, struct usb_request *req, | |
677 | gfp_t gfp_flags) | |
678 | { | |
679 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
680 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
681 | struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); | |
682 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
2f98382d KM |
683 | |
684 | /* param check */ | |
685 | if (usbhsg_is_not_connected(gpriv) || | |
686 | unlikely(!gpriv->driver) || | |
687 | unlikely(!pipe)) | |
97664a20 | 688 | return -ESHUTDOWN; |
2f98382d | 689 | |
97664a20 | 690 | usbhsg_queue_push(uep, ureq); |
2f98382d | 691 | |
97664a20 | 692 | return 0; |
2f98382d KM |
693 | } |
694 | ||
695 | static int usbhsg_ep_dequeue(struct usb_ep *ep, struct usb_request *req) | |
696 | { | |
697 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
698 | struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); | |
b8b9c974 YS |
699 | struct usbhs_pipe *pipe; |
700 | unsigned long flags; | |
2f98382d | 701 | |
b8b9c974 YS |
702 | spin_lock_irqsave(&uep->lock, flags); |
703 | pipe = usbhsg_uep_to_pipe(uep); | |
c9eb2950 YS |
704 | if (pipe) |
705 | usbhs_pkt_pop(pipe, usbhsg_ureq_to_pkt(ureq)); | |
706 | ||
707 | /* | |
708 | * To dequeue a request, this driver should call the usbhsg_queue_pop() | |
709 | * even if the pipe is NULL. | |
710 | */ | |
2f98382d | 711 | usbhsg_queue_pop(uep, ureq, -ECONNRESET); |
b8b9c974 | 712 | spin_unlock_irqrestore(&uep->lock, flags); |
2f98382d | 713 | |
2f98382d KM |
714 | return 0; |
715 | } | |
716 | ||
717 | static int __usbhsg_ep_set_halt_wedge(struct usb_ep *ep, int halt, int wedge) | |
718 | { | |
719 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
720 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
721 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
97664a20 | 722 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); |
2f98382d | 723 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); |
2f98382d | 724 | unsigned long flags; |
2f98382d | 725 | |
97664a20 | 726 | usbhsg_pipe_disable(uep); |
2f98382d | 727 | |
97664a20 KM |
728 | dev_dbg(dev, "set halt %d (pipe %d)\n", |
729 | halt, usbhs_pipe_number(pipe)); | |
2f98382d | 730 | |
97664a20 KM |
731 | /******************** spin lock ********************/ |
732 | usbhs_lock(priv, flags); | |
2f98382d | 733 | |
97664a20 KM |
734 | if (halt) |
735 | usbhs_pipe_stall(pipe); | |
736 | else | |
737 | usbhs_pipe_disable(pipe); | |
2f98382d | 738 | |
97664a20 KM |
739 | if (halt && wedge) |
740 | usbhsg_status_set(gpriv, USBHSG_STATUS_WEDGE); | |
741 | else | |
742 | usbhsg_status_clr(gpriv, USBHSG_STATUS_WEDGE); | |
2f98382d | 743 | |
97664a20 | 744 | usbhs_unlock(priv, flags); |
2f98382d KM |
745 | /******************** spin unlock ******************/ |
746 | ||
97664a20 | 747 | return 0; |
2f98382d KM |
748 | } |
749 | ||
750 | static int usbhsg_ep_set_halt(struct usb_ep *ep, int value) | |
751 | { | |
752 | return __usbhsg_ep_set_halt_wedge(ep, value, 0); | |
753 | } | |
754 | ||
755 | static int usbhsg_ep_set_wedge(struct usb_ep *ep) | |
756 | { | |
757 | return __usbhsg_ep_set_halt_wedge(ep, 1, 1); | |
758 | } | |
759 | ||
7fc46137 | 760 | static const struct usb_ep_ops usbhsg_ep_ops = { |
2f98382d KM |
761 | .enable = usbhsg_ep_enable, |
762 | .disable = usbhsg_ep_disable, | |
763 | ||
764 | .alloc_request = usbhsg_ep_alloc_request, | |
765 | .free_request = usbhsg_ep_free_request, | |
766 | ||
767 | .queue = usbhsg_ep_queue, | |
768 | .dequeue = usbhsg_ep_dequeue, | |
769 | ||
770 | .set_halt = usbhsg_ep_set_halt, | |
771 | .set_wedge = usbhsg_ep_set_wedge, | |
772 | }; | |
773 | ||
04a5def3 TK |
774 | /* |
775 | * pullup control | |
776 | */ | |
777 | static int usbhsg_can_pullup(struct usbhs_priv *priv) | |
778 | { | |
779 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
780 | ||
781 | return gpriv->driver && | |
782 | usbhsg_status_has(gpriv, USBHSG_STATUS_SOFT_CONNECT); | |
783 | } | |
784 | ||
785 | static void usbhsg_update_pullup(struct usbhs_priv *priv) | |
786 | { | |
787 | if (usbhsg_can_pullup(priv)) | |
788 | usbhs_sys_function_pullup(priv, 1); | |
789 | else | |
790 | usbhs_sys_function_pullup(priv, 0); | |
791 | } | |
792 | ||
2f98382d KM |
793 | /* |
794 | * usb module start/end | |
795 | */ | |
796 | static int usbhsg_try_start(struct usbhs_priv *priv, u32 status) | |
797 | { | |
798 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
799 | struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); | |
800 | struct usbhs_mod *mod = usbhs_mod_get_current(priv); | |
801 | struct device *dev = usbhs_priv_to_dev(priv); | |
2f98382d | 802 | unsigned long flags; |
97664a20 | 803 | int ret = 0; |
2f98382d KM |
804 | |
805 | /******************** spin lock ********************/ | |
97664a20 | 806 | usbhs_lock(priv, flags); |
2f98382d | 807 | |
2f98382d KM |
808 | usbhsg_status_set(gpriv, status); |
809 | if (!(usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) && | |
810 | usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD))) | |
97664a20 KM |
811 | ret = -1; /* not ready */ |
812 | ||
813 | usbhs_unlock(priv, flags); | |
814 | /******************** spin unlock ********************/ | |
815 | ||
816 | if (ret < 0) | |
817 | return 0; /* not ready is not error */ | |
2f98382d | 818 | |
97664a20 KM |
819 | /* |
820 | * enable interrupt and systems if ready | |
821 | */ | |
2f98382d KM |
822 | dev_dbg(dev, "start gadget\n"); |
823 | ||
824 | /* | |
825 | * pipe initialize and enable DCP | |
826 | */ | |
cdeb7943 | 827 | usbhs_fifo_init(priv); |
4bd04811 | 828 | usbhs_pipe_init(priv, |
e73a9891 | 829 | usbhsg_dma_map_ctrl); |
97664a20 | 830 | |
d9fa298f | 831 | /* dcp init instead of usbhsg_ep_enable() */ |
97664a20 KM |
832 | dcp->pipe = usbhs_dcp_malloc(priv); |
833 | dcp->pipe->mod_private = dcp; | |
bc6fbf59 | 834 | usbhs_pipe_config_update(dcp->pipe, 0, 0, 64); |
2f98382d KM |
835 | |
836 | /* | |
837 | * system config enble | |
838 | * - HI speed | |
839 | * - function | |
840 | * - usb module | |
841 | */ | |
2f98382d | 842 | usbhs_sys_function_ctrl(priv, 1); |
04a5def3 | 843 | usbhsg_update_pullup(priv); |
2f98382d KM |
844 | |
845 | /* | |
846 | * enable irq callback | |
847 | */ | |
848 | mod->irq_dev_state = usbhsg_irq_dev_state; | |
849 | mod->irq_ctrl_stage = usbhsg_irq_ctrl_stage; | |
2f98382d KM |
850 | usbhs_irq_callback_update(priv, mod); |
851 | ||
2f98382d KM |
852 | return 0; |
853 | } | |
854 | ||
855 | static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status) | |
856 | { | |
857 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
858 | struct usbhs_mod *mod = usbhs_mod_get_current(priv); | |
b8b9c974 | 859 | struct usbhsg_uep *uep; |
2f98382d | 860 | struct device *dev = usbhs_priv_to_dev(priv); |
2f98382d | 861 | unsigned long flags; |
b8b9c974 | 862 | int ret = 0, i; |
2f98382d KM |
863 | |
864 | /******************** spin lock ********************/ | |
97664a20 | 865 | usbhs_lock(priv, flags); |
2f98382d | 866 | |
2f98382d KM |
867 | usbhsg_status_clr(gpriv, status); |
868 | if (!usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) && | |
869 | !usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD)) | |
97664a20 KM |
870 | ret = -1; /* already done */ |
871 | ||
872 | usbhs_unlock(priv, flags); | |
873 | /******************** spin unlock ********************/ | |
874 | ||
875 | if (ret < 0) | |
876 | return 0; /* already done is not error */ | |
2f98382d | 877 | |
97664a20 KM |
878 | /* |
879 | * disable interrupt and systems if 1st try | |
880 | */ | |
dad67397 KM |
881 | usbhs_fifo_quit(priv); |
882 | ||
2f98382d KM |
883 | /* disable all irq */ |
884 | mod->irq_dev_state = NULL; | |
885 | mod->irq_ctrl_stage = NULL; | |
2f98382d KM |
886 | usbhs_irq_callback_update(priv, mod); |
887 | ||
2f98382d KM |
888 | gpriv->gadget.speed = USB_SPEED_UNKNOWN; |
889 | ||
890 | /* disable sys */ | |
dfbb7f4f | 891 | usbhs_sys_set_test_mode(priv, 0); |
2f98382d | 892 | usbhs_sys_function_ctrl(priv, 0); |
2f98382d | 893 | |
b8b9c974 YS |
894 | /* disable all eps */ |
895 | usbhsg_for_each_uep_with_dcp(uep, gpriv, i) | |
896 | usbhsg_ep_disable(&uep->ep); | |
2f98382d | 897 | |
2f98382d KM |
898 | dev_dbg(dev, "stop gadget\n"); |
899 | ||
2f98382d KM |
900 | return 0; |
901 | } | |
902 | ||
b5a28756 PE |
903 | /* |
904 | * VBUS provided by the PHY | |
905 | */ | |
906 | static int usbhsm_phy_get_vbus(struct platform_device *pdev) | |
907 | { | |
908 | struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev); | |
909 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
910 | ||
911 | return gpriv->vbus_active; | |
912 | } | |
913 | ||
914 | static void usbhs_mod_phy_mode(struct usbhs_priv *priv) | |
915 | { | |
916 | struct usbhs_mod_info *info = &priv->mod_info; | |
917 | ||
ccc3264c YS |
918 | info->irq_vbus = NULL; |
919 | info->get_vbus = usbhsm_phy_get_vbus; | |
b5a28756 PE |
920 | |
921 | usbhs_irq_callback_update(priv, NULL); | |
922 | } | |
923 | ||
2f98382d KM |
924 | /* |
925 | * | |
926 | * linux usb function | |
927 | * | |
928 | */ | |
af1d7056 FB |
929 | static int usbhsg_gadget_start(struct usb_gadget *gadget, |
930 | struct usb_gadget_driver *driver) | |
2f98382d | 931 | { |
af1d7056 | 932 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); |
f8eff0a0 | 933 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); |
b5a28756 PE |
934 | struct device *dev = usbhs_priv_to_dev(priv); |
935 | int ret; | |
2f98382d | 936 | |
af1d7056 | 937 | if (!driver || |
2f98382d | 938 | !driver->setup || |
7177aed4 | 939 | driver->max_speed < USB_SPEED_FULL) |
2f98382d | 940 | return -EINVAL; |
3b872188 | 941 | |
b5a28756 PE |
942 | /* connect to bus through transceiver */ |
943 | if (!IS_ERR_OR_NULL(gpriv->transceiver)) { | |
944 | ret = otg_set_peripheral(gpriv->transceiver->otg, | |
945 | &gpriv->gadget); | |
946 | if (ret) { | |
947 | dev_err(dev, "%s: can't bind to transceiver\n", | |
948 | gpriv->gadget.name); | |
949 | return ret; | |
950 | } | |
951 | ||
952 | /* get vbus using phy versions */ | |
953 | usbhs_mod_phy_mode(priv); | |
954 | } | |
955 | ||
2f98382d KM |
956 | /* first hook up the driver ... */ |
957 | gpriv->driver = driver; | |
2f98382d | 958 | |
2f98382d | 959 | return usbhsg_try_start(priv, USBHSG_STATUS_REGISTERD); |
2f98382d | 960 | } |
2f98382d | 961 | |
22835b80 | 962 | static int usbhsg_gadget_stop(struct usb_gadget *gadget) |
2f98382d | 963 | { |
af1d7056 | 964 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); |
f8eff0a0 | 965 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); |
2f98382d | 966 | |
2f98382d | 967 | usbhsg_try_stop(priv, USBHSG_STATUS_REGISTERD); |
b5a28756 PE |
968 | |
969 | if (!IS_ERR_OR_NULL(gpriv->transceiver)) | |
970 | otg_set_peripheral(gpriv->transceiver->otg, NULL); | |
971 | ||
2f98382d KM |
972 | gpriv->driver = NULL; |
973 | ||
2f98382d KM |
974 | return 0; |
975 | } | |
2f98382d KM |
976 | |
977 | /* | |
978 | * usb gadget ops | |
979 | */ | |
980 | static int usbhsg_get_frame(struct usb_gadget *gadget) | |
981 | { | |
982 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); | |
983 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); | |
984 | ||
985 | return usbhs_frame_get_num(priv); | |
986 | } | |
987 | ||
4cd2f599 KM |
988 | static int usbhsg_pullup(struct usb_gadget *gadget, int is_on) |
989 | { | |
990 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); | |
991 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); | |
04a5def3 | 992 | unsigned long flags; |
4cd2f599 | 993 | |
04a5def3 TK |
994 | usbhs_lock(priv, flags); |
995 | if (is_on) | |
996 | usbhsg_status_set(gpriv, USBHSG_STATUS_SOFT_CONNECT); | |
997 | else | |
998 | usbhsg_status_clr(gpriv, USBHSG_STATUS_SOFT_CONNECT); | |
999 | usbhsg_update_pullup(priv); | |
1000 | usbhs_unlock(priv, flags); | |
4cd2f599 KM |
1001 | |
1002 | return 0; | |
1003 | } | |
1004 | ||
cac402dd SY |
1005 | static int usbhsg_set_selfpowered(struct usb_gadget *gadget, int is_self) |
1006 | { | |
1007 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); | |
1008 | ||
1009 | if (is_self) | |
1010 | usbhsg_status_set(gpriv, USBHSG_STATUS_SELF_POWERED); | |
1011 | else | |
1012 | usbhsg_status_clr(gpriv, USBHSG_STATUS_SELF_POWERED); | |
1013 | ||
a17fd412 PC |
1014 | gadget->is_selfpowered = (is_self != 0); |
1015 | ||
cac402dd SY |
1016 | return 0; |
1017 | } | |
1018 | ||
b5a28756 PE |
1019 | static int usbhsg_vbus_session(struct usb_gadget *gadget, int is_active) |
1020 | { | |
1021 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); | |
1022 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); | |
1023 | struct platform_device *pdev = usbhs_priv_to_pdev(priv); | |
1024 | ||
1025 | gpriv->vbus_active = !!is_active; | |
1026 | ||
0966648d | 1027 | usbhsc_schedule_notify_hotplug(pdev); |
b5a28756 PE |
1028 | |
1029 | return 0; | |
1030 | } | |
1031 | ||
eeef4587 | 1032 | static const struct usb_gadget_ops usbhsg_gadget_ops = { |
2f98382d | 1033 | .get_frame = usbhsg_get_frame, |
cac402dd | 1034 | .set_selfpowered = usbhsg_set_selfpowered, |
af1d7056 FB |
1035 | .udc_start = usbhsg_gadget_start, |
1036 | .udc_stop = usbhsg_gadget_stop, | |
4cd2f599 | 1037 | .pullup = usbhsg_pullup, |
b5a28756 | 1038 | .vbus_session = usbhsg_vbus_session, |
2f98382d KM |
1039 | }; |
1040 | ||
1041 | static int usbhsg_start(struct usbhs_priv *priv) | |
1042 | { | |
1043 | return usbhsg_try_start(priv, USBHSG_STATUS_STARTED); | |
1044 | } | |
1045 | ||
1046 | static int usbhsg_stop(struct usbhs_priv *priv) | |
1047 | { | |
8885a897 KM |
1048 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); |
1049 | ||
1050 | /* cable disconnect */ | |
1051 | if (gpriv->driver && | |
1052 | gpriv->driver->disconnect) | |
1053 | gpriv->driver->disconnect(&gpriv->gadget); | |
1054 | ||
2f98382d KM |
1055 | return usbhsg_try_stop(priv, USBHSG_STATUS_STARTED); |
1056 | } | |
1057 | ||
b7a8d17d | 1058 | int usbhs_mod_gadget_probe(struct usbhs_priv *priv) |
2f98382d KM |
1059 | { |
1060 | struct usbhsg_gpriv *gpriv; | |
1061 | struct usbhsg_uep *uep; | |
1062 | struct device *dev = usbhs_priv_to_dev(priv); | |
64c5f48b YS |
1063 | struct renesas_usbhs_driver_pipe_config *pipe_configs = |
1064 | usbhs_get_dparam(priv, pipe_configs); | |
2f98382d KM |
1065 | int pipe_size = usbhs_get_dparam(priv, pipe_size); |
1066 | int i; | |
0f91349b | 1067 | int ret; |
2f98382d KM |
1068 | |
1069 | gpriv = kzalloc(sizeof(struct usbhsg_gpriv), GFP_KERNEL); | |
7d80e4be | 1070 | if (!gpriv) |
2f98382d | 1071 | return -ENOMEM; |
2f98382d | 1072 | |
6396bb22 | 1073 | uep = kcalloc(pipe_size, sizeof(struct usbhsg_uep), GFP_KERNEL); |
2f98382d | 1074 | if (!uep) { |
0f91349b | 1075 | ret = -ENOMEM; |
2f98382d KM |
1076 | goto usbhs_mod_gadget_probe_err_gpriv; |
1077 | } | |
1078 | ||
b5a28756 PE |
1079 | gpriv->transceiver = usb_get_phy(USB_PHY_TYPE_UNDEFINED); |
1080 | dev_info(dev, "%stransceiver found\n", | |
3295235f | 1081 | !IS_ERR(gpriv->transceiver) ? "" : "no "); |
b5a28756 | 1082 | |
2f98382d KM |
1083 | /* |
1084 | * CAUTION | |
1085 | * | |
1086 | * There is no guarantee that it is possible to access usb module here. | |
1087 | * Don't accesses to it. | |
1088 | * The accesse will be enable after "usbhsg_start" | |
1089 | */ | |
1090 | ||
1091 | /* | |
1092 | * register itself | |
1093 | */ | |
1094 | usbhs_mod_register(priv, &gpriv->mod, USBHS_GADGET); | |
1095 | ||
1096 | /* init gpriv */ | |
1097 | gpriv->mod.name = "gadget"; | |
1098 | gpriv->mod.start = usbhsg_start; | |
1099 | gpriv->mod.stop = usbhsg_stop; | |
1100 | gpriv->uep = uep; | |
1101 | gpriv->uep_size = pipe_size; | |
1102 | usbhsg_status_init(gpriv); | |
1103 | ||
1104 | /* | |
1105 | * init gadget | |
1106 | */ | |
2f98382d KM |
1107 | gpriv->gadget.dev.parent = dev; |
1108 | gpriv->gadget.name = "renesas_usbhs_udc"; | |
1109 | gpriv->gadget.ops = &usbhsg_gadget_ops; | |
d327ab5b | 1110 | gpriv->gadget.max_speed = USB_SPEED_HIGH; |
ee5acabf YS |
1111 | gpriv->gadget.quirk_avoids_skb_reserve = usbhs_get_dparam(priv, |
1112 | has_usb_dmac); | |
2f98382d KM |
1113 | |
1114 | INIT_LIST_HEAD(&gpriv->gadget.ep_list); | |
1115 | ||
1116 | /* | |
1117 | * init usb_ep | |
1118 | */ | |
1119 | usbhsg_for_each_uep_with_dcp(uep, gpriv, i) { | |
1120 | uep->gpriv = gpriv; | |
58482945 | 1121 | uep->pipe = NULL; |
2f98382d KM |
1122 | snprintf(uep->ep_name, EP_NAME_SIZE, "ep%d", i); |
1123 | ||
1124 | uep->ep.name = uep->ep_name; | |
1125 | uep->ep.ops = &usbhsg_ep_ops; | |
1126 | INIT_LIST_HEAD(&uep->ep.ep_list); | |
14a8d4bf | 1127 | spin_lock_init(&uep->lock); |
2f98382d KM |
1128 | |
1129 | /* init DCP */ | |
1130 | if (usbhsg_is_dcp(uep)) { | |
1131 | gpriv->gadget.ep0 = &uep->ep; | |
e117e742 | 1132 | usb_ep_set_maxpacket_limit(&uep->ep, 64); |
916f7ac5 | 1133 | uep->ep.caps.type_control = true; |
64c5f48b YS |
1134 | } else { |
1135 | /* init normal pipe */ | |
1136 | if (pipe_configs[i].type == USB_ENDPOINT_XFER_ISOC) | |
1137 | uep->ep.caps.type_iso = true; | |
1138 | if (pipe_configs[i].type == USB_ENDPOINT_XFER_BULK) | |
1139 | uep->ep.caps.type_bulk = true; | |
1140 | if (pipe_configs[i].type == USB_ENDPOINT_XFER_INT) | |
1141 | uep->ep.caps.type_int = true; | |
1142 | usb_ep_set_maxpacket_limit(&uep->ep, | |
1143 | pipe_configs[i].bufsize); | |
2f98382d KM |
1144 | list_add_tail(&uep->ep.ep_list, &gpriv->gadget.ep_list); |
1145 | } | |
916f7ac5 RB |
1146 | uep->ep.caps.dir_in = true; |
1147 | uep->ep.caps.dir_out = true; | |
2f98382d KM |
1148 | } |
1149 | ||
0f91349b SAS |
1150 | ret = usb_add_gadget_udc(dev, &gpriv->gadget); |
1151 | if (ret) | |
0972ef71 | 1152 | goto err_add_udc; |
0f91349b SAS |
1153 | |
1154 | ||
2f98382d KM |
1155 | dev_info(dev, "gadget probed\n"); |
1156 | ||
1157 | return 0; | |
f8eff0a0 | 1158 | |
0f91349b SAS |
1159 | err_add_udc: |
1160 | kfree(gpriv->uep); | |
2f98382d KM |
1161 | |
1162 | usbhs_mod_gadget_probe_err_gpriv: | |
1163 | kfree(gpriv); | |
1164 | ||
0f91349b | 1165 | return ret; |
2f98382d KM |
1166 | } |
1167 | ||
b7a8d17d | 1168 | void usbhs_mod_gadget_remove(struct usbhs_priv *priv) |
2f98382d KM |
1169 | { |
1170 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
1171 | ||
0f91349b | 1172 | usb_del_gadget_udc(&gpriv->gadget); |
3b872188 | 1173 | |
3af51ac9 | 1174 | kfree(gpriv->uep); |
2f98382d KM |
1175 | kfree(gpriv); |
1176 | } |