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2f98382d KM |
1 | /* |
2 | * Renesas USB driver | |
3 | * | |
4 | * Copyright (C) 2011 Renesas Solutions Corp. | |
5 | * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | |
6 | * | |
7 | * This program is distributed in the hope that it will be useful, | |
8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
10 | * GNU General Public License for more details. | |
11 | * | |
12 | * You should have received a copy of the GNU General Public License | |
13 | * along with this program; if not, write to the Free Software | |
14 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
15 | * | |
16 | */ | |
dfbb7f4f | 17 | #include <linux/delay.h> |
d128a259 | 18 | #include <linux/dma-mapping.h> |
2f98382d KM |
19 | #include <linux/io.h> |
20 | #include <linux/module.h> | |
21 | #include <linux/platform_device.h> | |
22 | #include <linux/usb/ch9.h> | |
23 | #include <linux/usb/gadget.h> | |
b5a28756 | 24 | #include <linux/usb/otg.h> |
2f98382d KM |
25 | #include "common.h" |
26 | ||
27 | /* | |
28 | * struct | |
29 | */ | |
30 | struct usbhsg_request { | |
31 | struct usb_request req; | |
4bd04811 | 32 | struct usbhs_pkt pkt; |
2f98382d KM |
33 | }; |
34 | ||
35 | #define EP_NAME_SIZE 8 | |
36 | struct usbhsg_gpriv; | |
2f98382d KM |
37 | struct usbhsg_uep { |
38 | struct usb_ep ep; | |
39 | struct usbhs_pipe *pipe; | |
b8b9c974 | 40 | spinlock_t lock; /* protect the pipe */ |
2f98382d KM |
41 | |
42 | char ep_name[EP_NAME_SIZE]; | |
43 | ||
44 | struct usbhsg_gpriv *gpriv; | |
2f98382d KM |
45 | }; |
46 | ||
47 | struct usbhsg_gpriv { | |
48 | struct usb_gadget gadget; | |
49 | struct usbhs_mod mod; | |
50 | ||
51 | struct usbhsg_uep *uep; | |
52 | int uep_size; | |
53 | ||
54 | struct usb_gadget_driver *driver; | |
b5a28756 PE |
55 | struct usb_phy *transceiver; |
56 | bool vbus_active; | |
2f98382d KM |
57 | |
58 | u32 status; | |
59 | #define USBHSG_STATUS_STARTED (1 << 0) | |
60 | #define USBHSG_STATUS_REGISTERD (1 << 1) | |
61 | #define USBHSG_STATUS_WEDGE (1 << 2) | |
cac402dd | 62 | #define USBHSG_STATUS_SELF_POWERED (1 << 3) |
04a5def3 | 63 | #define USBHSG_STATUS_SOFT_CONNECT (1 << 4) |
2f98382d KM |
64 | }; |
65 | ||
2f98382d KM |
66 | struct usbhsg_recip_handle { |
67 | char *name; | |
68 | int (*device)(struct usbhs_priv *priv, struct usbhsg_uep *uep, | |
69 | struct usb_ctrlrequest *ctrl); | |
70 | int (*interface)(struct usbhs_priv *priv, struct usbhsg_uep *uep, | |
71 | struct usb_ctrlrequest *ctrl); | |
72 | int (*endpoint)(struct usbhs_priv *priv, struct usbhsg_uep *uep, | |
73 | struct usb_ctrlrequest *ctrl); | |
74 | }; | |
75 | ||
76 | /* | |
77 | * macro | |
78 | */ | |
79 | #define usbhsg_priv_to_gpriv(priv) \ | |
80 | container_of( \ | |
81 | usbhs_mod_get(priv, USBHS_GADGET), \ | |
82 | struct usbhsg_gpriv, mod) | |
83 | ||
84 | #define __usbhsg_for_each_uep(start, pos, g, i) \ | |
925403f4 KM |
85 | for ((i) = start; \ |
86 | ((i) < (g)->uep_size) && ((pos) = (g)->uep + (i)); \ | |
87 | (i)++) | |
2f98382d KM |
88 | |
89 | #define usbhsg_for_each_uep(pos, gpriv, i) \ | |
90 | __usbhsg_for_each_uep(1, pos, gpriv, i) | |
91 | ||
92 | #define usbhsg_for_each_uep_with_dcp(pos, gpriv, i) \ | |
93 | __usbhsg_for_each_uep(0, pos, gpriv, i) | |
94 | ||
95 | #define usbhsg_gadget_to_gpriv(g)\ | |
96 | container_of(g, struct usbhsg_gpriv, gadget) | |
97 | ||
98 | #define usbhsg_req_to_ureq(r)\ | |
99 | container_of(r, struct usbhsg_request, req) | |
100 | ||
101 | #define usbhsg_ep_to_uep(e) container_of(e, struct usbhsg_uep, ep) | |
2f98382d KM |
102 | #define usbhsg_gpriv_to_dev(gp) usbhs_priv_to_dev((gp)->mod.priv) |
103 | #define usbhsg_gpriv_to_priv(gp) ((gp)->mod.priv) | |
104 | #define usbhsg_gpriv_to_dcp(gp) ((gp)->uep) | |
105 | #define usbhsg_gpriv_to_nth_uep(gp, i) ((gp)->uep + i) | |
106 | #define usbhsg_uep_to_gpriv(u) ((u)->gpriv) | |
107 | #define usbhsg_uep_to_pipe(u) ((u)->pipe) | |
108 | #define usbhsg_pipe_to_uep(p) ((p)->mod_private) | |
109 | #define usbhsg_is_dcp(u) ((u) == usbhsg_gpriv_to_dcp((u)->gpriv)) | |
110 | ||
4bd04811 KM |
111 | #define usbhsg_ureq_to_pkt(u) (&(u)->pkt) |
112 | #define usbhsg_pkt_to_ureq(i) \ | |
113 | container_of(i, struct usbhsg_request, pkt) | |
114 | ||
2f98382d KM |
115 | #define usbhsg_is_not_connected(gp) ((gp)->gadget.speed == USB_SPEED_UNKNOWN) |
116 | ||
117 | /* status */ | |
118 | #define usbhsg_status_init(gp) do {(gp)->status = 0; } while (0) | |
119 | #define usbhsg_status_set(gp, b) (gp->status |= b) | |
120 | #define usbhsg_status_clr(gp, b) (gp->status &= ~b) | |
121 | #define usbhsg_status_has(gp, b) (gp->status & b) | |
122 | ||
123 | /* | |
233f519d | 124 | * queue push/pop |
2f98382d | 125 | */ |
00f30d29 YS |
126 | static void __usbhsg_queue_pop(struct usbhsg_uep *uep, |
127 | struct usbhsg_request *ureq, | |
128 | int status) | |
2f98382d KM |
129 | { |
130 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
131 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
132 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
00f30d29 | 133 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); |
2f98382d | 134 | |
c9eb2950 YS |
135 | if (pipe) |
136 | dev_dbg(dev, "pipe %d : queue pop\n", usbhs_pipe_number(pipe)); | |
2f98382d | 137 | |
2f98382d | 138 | ureq->req.status = status; |
00f30d29 | 139 | spin_unlock(usbhs_priv_to_lock(priv)); |
304f7e5e | 140 | usb_gadget_giveback_request(&uep->ep, &ureq->req); |
00f30d29 YS |
141 | spin_lock(usbhs_priv_to_lock(priv)); |
142 | } | |
143 | ||
144 | static void usbhsg_queue_pop(struct usbhsg_uep *uep, | |
145 | struct usbhsg_request *ureq, | |
146 | int status) | |
147 | { | |
148 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
149 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); | |
150 | unsigned long flags; | |
151 | ||
152 | usbhs_lock(priv, flags); | |
153 | __usbhsg_queue_pop(uep, ureq, status); | |
154 | usbhs_unlock(priv, flags); | |
2f98382d KM |
155 | } |
156 | ||
2cc97197 | 157 | static void usbhsg_queue_done(struct usbhs_priv *priv, struct usbhs_pkt *pkt) |
2f98382d | 158 | { |
4bd04811 KM |
159 | struct usbhs_pipe *pipe = pkt->pipe; |
160 | struct usbhsg_uep *uep = usbhsg_pipe_to_uep(pipe); | |
161 | struct usbhsg_request *ureq = usbhsg_pkt_to_ureq(pkt); | |
4fccb076 | 162 | unsigned long flags; |
2f98382d | 163 | |
659d4954 | 164 | ureq->req.actual = pkt->actual; |
2f98382d | 165 | |
4fccb076 YS |
166 | usbhs_lock(priv, flags); |
167 | if (uep) | |
168 | __usbhsg_queue_pop(uep, ureq, 0); | |
169 | usbhs_unlock(priv, flags); | |
4bd04811 KM |
170 | } |
171 | ||
b331872b KM |
172 | static void usbhsg_queue_push(struct usbhsg_uep *uep, |
173 | struct usbhsg_request *ureq) | |
174 | { | |
175 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
176 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
177 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
178 | struct usbhs_pkt *pkt = usbhsg_ureq_to_pkt(ureq); | |
179 | struct usb_request *req = &ureq->req; | |
180 | ||
181 | req->actual = 0; | |
182 | req->status = -EINPROGRESS; | |
183 | usbhs_pkt_push(pipe, pkt, usbhsg_queue_done, | |
3edeee38 | 184 | req->buf, req->length, req->zero, -1); |
654c35ab | 185 | usbhs_pkt_start(pipe); |
b331872b KM |
186 | |
187 | dev_dbg(dev, "pipe %d : queue push (%d)\n", | |
188 | usbhs_pipe_number(pipe), | |
189 | req->length); | |
190 | } | |
191 | ||
233f519d KM |
192 | /* |
193 | * dma map/unmap | |
194 | */ | |
c3cdcac7 YS |
195 | static int usbhsg_dma_map_ctrl(struct device *dma_dev, struct usbhs_pkt *pkt, |
196 | int map) | |
e73a9891 KM |
197 | { |
198 | struct usbhsg_request *ureq = usbhsg_pkt_to_ureq(pkt); | |
199 | struct usb_request *req = &ureq->req; | |
e73a9891 | 200 | struct usbhs_pipe *pipe = pkt->pipe; |
e73a9891 | 201 | enum dma_data_direction dir; |
ade78f9f | 202 | int ret = 0; |
e73a9891 | 203 | |
ade78f9f | 204 | dir = usbhs_pipe_is_dir_host(pipe); |
e73a9891 | 205 | |
ade78f9f FB |
206 | if (map) { |
207 | /* it can not use scatter/gather */ | |
208 | WARN_ON(req->num_sgs); | |
209 | ||
b41d8a6a | 210 | ret = usb_gadget_map_request_by_dev(dma_dev, req, dir); |
ade78f9f FB |
211 | if (ret < 0) |
212 | return ret; | |
213 | ||
214 | pkt->dma = req->dma; | |
215 | } else { | |
b41d8a6a | 216 | usb_gadget_unmap_request_by_dev(dma_dev, req, dir); |
ade78f9f FB |
217 | } |
218 | ||
219 | return ret; | |
e73a9891 KM |
220 | } |
221 | ||
2f98382d KM |
222 | /* |
223 | * USB_TYPE_STANDARD / clear feature functions | |
224 | */ | |
225 | static int usbhsg_recip_handler_std_control_done(struct usbhs_priv *priv, | |
226 | struct usbhsg_uep *uep, | |
227 | struct usb_ctrlrequest *ctrl) | |
228 | { | |
229 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
230 | struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); | |
231 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp); | |
232 | ||
233 | usbhs_dcp_control_transfer_done(pipe); | |
234 | ||
235 | return 0; | |
236 | } | |
237 | ||
238 | static int usbhsg_recip_handler_std_clear_endpoint(struct usbhs_priv *priv, | |
239 | struct usbhsg_uep *uep, | |
240 | struct usb_ctrlrequest *ctrl) | |
241 | { | |
242 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
243 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
244 | ||
245 | if (!usbhsg_status_has(gpriv, USBHSG_STATUS_WEDGE)) { | |
e8d548d5 | 246 | usbhs_pipe_disable(pipe); |
6e6db82b | 247 | usbhs_pipe_sequence_data0(pipe); |
e8d548d5 | 248 | usbhs_pipe_enable(pipe); |
2f98382d KM |
249 | } |
250 | ||
251 | usbhsg_recip_handler_std_control_done(priv, uep, ctrl); | |
252 | ||
25fa7079 KM |
253 | usbhs_pkt_start(pipe); |
254 | ||
2f98382d KM |
255 | return 0; |
256 | } | |
257 | ||
225da3e3 | 258 | static struct usbhsg_recip_handle req_clear_feature = { |
2f98382d KM |
259 | .name = "clear feature", |
260 | .device = usbhsg_recip_handler_std_control_done, | |
261 | .interface = usbhsg_recip_handler_std_control_done, | |
262 | .endpoint = usbhsg_recip_handler_std_clear_endpoint, | |
263 | }; | |
264 | ||
ced6e09e KM |
265 | /* |
266 | * USB_TYPE_STANDARD / set feature functions | |
267 | */ | |
dfbb7f4f KM |
268 | static int usbhsg_recip_handler_std_set_device(struct usbhs_priv *priv, |
269 | struct usbhsg_uep *uep, | |
270 | struct usb_ctrlrequest *ctrl) | |
271 | { | |
272 | switch (le16_to_cpu(ctrl->wValue)) { | |
273 | case USB_DEVICE_TEST_MODE: | |
274 | usbhsg_recip_handler_std_control_done(priv, uep, ctrl); | |
275 | udelay(100); | |
276 | usbhs_sys_set_test_mode(priv, le16_to_cpu(ctrl->wIndex >> 8)); | |
277 | break; | |
278 | default: | |
279 | usbhsg_recip_handler_std_control_done(priv, uep, ctrl); | |
280 | break; | |
281 | } | |
282 | ||
283 | return 0; | |
284 | } | |
285 | ||
ced6e09e KM |
286 | static int usbhsg_recip_handler_std_set_endpoint(struct usbhs_priv *priv, |
287 | struct usbhsg_uep *uep, | |
288 | struct usb_ctrlrequest *ctrl) | |
289 | { | |
290 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
291 | ||
292 | usbhs_pipe_stall(pipe); | |
293 | ||
294 | usbhsg_recip_handler_std_control_done(priv, uep, ctrl); | |
295 | ||
296 | return 0; | |
297 | } | |
298 | ||
225da3e3 | 299 | static struct usbhsg_recip_handle req_set_feature = { |
ced6e09e | 300 | .name = "set feature", |
dfbb7f4f | 301 | .device = usbhsg_recip_handler_std_set_device, |
ced6e09e KM |
302 | .interface = usbhsg_recip_handler_std_control_done, |
303 | .endpoint = usbhsg_recip_handler_std_set_endpoint, | |
304 | }; | |
305 | ||
17f7f769 KM |
306 | /* |
307 | * USB_TYPE_STANDARD / get status functions | |
308 | */ | |
309 | static void __usbhsg_recip_send_complete(struct usb_ep *ep, | |
310 | struct usb_request *req) | |
311 | { | |
312 | struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); | |
313 | ||
314 | /* free allocated recip-buffer/usb_request */ | |
315 | kfree(ureq->pkt.buf); | |
316 | usb_ep_free_request(ep, req); | |
317 | } | |
318 | ||
319 | static void __usbhsg_recip_send_status(struct usbhsg_gpriv *gpriv, | |
320 | unsigned short status) | |
321 | { | |
322 | struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); | |
323 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp); | |
324 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
325 | struct usb_request *req; | |
326 | unsigned short *buf; | |
327 | ||
328 | /* alloc new usb_request for recip */ | |
329 | req = usb_ep_alloc_request(&dcp->ep, GFP_ATOMIC); | |
330 | if (!req) { | |
331 | dev_err(dev, "recip request allocation fail\n"); | |
332 | return; | |
333 | } | |
334 | ||
335 | /* alloc recip data buffer */ | |
336 | buf = kmalloc(sizeof(*buf), GFP_ATOMIC); | |
337 | if (!buf) { | |
338 | usb_ep_free_request(&dcp->ep, req); | |
17f7f769 KM |
339 | return; |
340 | } | |
341 | ||
342 | /* recip data is status */ | |
343 | *buf = cpu_to_le16(status); | |
344 | ||
345 | /* allocated usb_request/buffer will be freed */ | |
346 | req->complete = __usbhsg_recip_send_complete; | |
347 | req->buf = buf; | |
348 | req->length = sizeof(*buf); | |
349 | req->zero = 0; | |
350 | ||
351 | /* push packet */ | |
352 | pipe->handler = &usbhs_fifo_pio_push_handler; | |
353 | usbhsg_queue_push(dcp, usbhsg_req_to_ureq(req)); | |
354 | } | |
355 | ||
356 | static int usbhsg_recip_handler_std_get_device(struct usbhs_priv *priv, | |
357 | struct usbhsg_uep *uep, | |
358 | struct usb_ctrlrequest *ctrl) | |
359 | { | |
360 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
cac402dd SY |
361 | unsigned short status = 0; |
362 | ||
363 | if (usbhsg_status_has(gpriv, USBHSG_STATUS_SELF_POWERED)) | |
364 | status = 1 << USB_DEVICE_SELF_POWERED; | |
17f7f769 KM |
365 | |
366 | __usbhsg_recip_send_status(gpriv, status); | |
367 | ||
368 | return 0; | |
369 | } | |
370 | ||
371 | static int usbhsg_recip_handler_std_get_interface(struct usbhs_priv *priv, | |
372 | struct usbhsg_uep *uep, | |
373 | struct usb_ctrlrequest *ctrl) | |
374 | { | |
375 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
376 | unsigned short status = 0; | |
377 | ||
378 | __usbhsg_recip_send_status(gpriv, status); | |
379 | ||
380 | return 0; | |
381 | } | |
382 | ||
383 | static int usbhsg_recip_handler_std_get_endpoint(struct usbhs_priv *priv, | |
384 | struct usbhsg_uep *uep, | |
385 | struct usb_ctrlrequest *ctrl) | |
386 | { | |
387 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
388 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
389 | unsigned short status = 0; | |
390 | ||
391 | if (usbhs_pipe_is_stall(pipe)) | |
392 | status = 1 << USB_ENDPOINT_HALT; | |
393 | ||
394 | __usbhsg_recip_send_status(gpriv, status); | |
395 | ||
396 | return 0; | |
397 | } | |
398 | ||
225da3e3 | 399 | static struct usbhsg_recip_handle req_get_status = { |
17f7f769 KM |
400 | .name = "get status", |
401 | .device = usbhsg_recip_handler_std_get_device, | |
402 | .interface = usbhsg_recip_handler_std_get_interface, | |
403 | .endpoint = usbhsg_recip_handler_std_get_endpoint, | |
404 | }; | |
405 | ||
2f98382d KM |
406 | /* |
407 | * USB_TYPE handler | |
408 | */ | |
409 | static int usbhsg_recip_run_handle(struct usbhs_priv *priv, | |
410 | struct usbhsg_recip_handle *handler, | |
411 | struct usb_ctrlrequest *ctrl) | |
412 | { | |
413 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
414 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
415 | struct usbhsg_uep *uep; | |
0432eed0 | 416 | struct usbhs_pipe *pipe; |
2f98382d KM |
417 | int recip = ctrl->bRequestType & USB_RECIP_MASK; |
418 | int nth = le16_to_cpu(ctrl->wIndex) & USB_ENDPOINT_NUMBER_MASK; | |
7983bc74 | 419 | int ret = 0; |
2f98382d KM |
420 | int (*func)(struct usbhs_priv *priv, struct usbhsg_uep *uep, |
421 | struct usb_ctrlrequest *ctrl); | |
422 | char *msg; | |
423 | ||
424 | uep = usbhsg_gpriv_to_nth_uep(gpriv, nth); | |
0432eed0 KM |
425 | pipe = usbhsg_uep_to_pipe(uep); |
426 | if (!pipe) { | |
9a28b7bd | 427 | dev_err(dev, "wrong recip request\n"); |
25fa7079 | 428 | return -EINVAL; |
9a28b7bd | 429 | } |
2f98382d KM |
430 | |
431 | switch (recip) { | |
432 | case USB_RECIP_DEVICE: | |
433 | msg = "DEVICE"; | |
434 | func = handler->device; | |
435 | break; | |
436 | case USB_RECIP_INTERFACE: | |
437 | msg = "INTERFACE"; | |
438 | func = handler->interface; | |
439 | break; | |
440 | case USB_RECIP_ENDPOINT: | |
441 | msg = "ENDPOINT"; | |
442 | func = handler->endpoint; | |
443 | break; | |
444 | default: | |
445 | dev_warn(dev, "unsupported RECIP(%d)\n", recip); | |
446 | func = NULL; | |
447 | ret = -EINVAL; | |
448 | } | |
449 | ||
450 | if (func) { | |
451 | dev_dbg(dev, "%s (pipe %d :%s)\n", handler->name, nth, msg); | |
452 | ret = func(priv, uep, ctrl); | |
453 | } | |
454 | ||
455 | return ret; | |
456 | } | |
457 | ||
458 | /* | |
459 | * irq functions | |
460 | * | |
461 | * it will be called from usbhs_interrupt | |
462 | */ | |
463 | static int usbhsg_irq_dev_state(struct usbhs_priv *priv, | |
464 | struct usbhs_irq_state *irq_state) | |
465 | { | |
466 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
467 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
468 | ||
75587f52 | 469 | gpriv->gadget.speed = usbhs_bus_get_speed(priv); |
2f98382d KM |
470 | |
471 | dev_dbg(dev, "state = %x : speed : %d\n", | |
472 | usbhs_status_get_device_state(irq_state), | |
473 | gpriv->gadget.speed); | |
474 | ||
475 | return 0; | |
476 | } | |
477 | ||
478 | static int usbhsg_irq_ctrl_stage(struct usbhs_priv *priv, | |
479 | struct usbhs_irq_state *irq_state) | |
480 | { | |
481 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
482 | struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); | |
483 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp); | |
484 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
485 | struct usb_ctrlrequest ctrl; | |
486 | struct usbhsg_recip_handle *recip_handler = NULL; | |
487 | int stage = usbhs_status_get_ctrl_stage(irq_state); | |
488 | int ret = 0; | |
489 | ||
490 | dev_dbg(dev, "stage = %d\n", stage); | |
491 | ||
492 | /* | |
493 | * see Manual | |
494 | * | |
495 | * "Operation" | |
496 | * - "Interrupt Function" | |
497 | * - "Control Transfer Stage Transition Interrupt" | |
498 | * - Fig. "Control Transfer Stage Transitions" | |
499 | */ | |
500 | ||
501 | switch (stage) { | |
502 | case READ_DATA_STAGE: | |
0c6ef985 | 503 | pipe->handler = &usbhs_fifo_pio_push_handler; |
2f98382d KM |
504 | break; |
505 | case WRITE_DATA_STAGE: | |
0c6ef985 | 506 | pipe->handler = &usbhs_fifo_pio_pop_handler; |
2f98382d KM |
507 | break; |
508 | case NODATA_STATUS_STAGE: | |
0c6ef985 | 509 | pipe->handler = &usbhs_ctrl_stage_end_handler; |
2f98382d | 510 | break; |
4ef35b10 YS |
511 | case READ_STATUS_STAGE: |
512 | case WRITE_STATUS_STAGE: | |
513 | usbhs_dcp_control_transfer_done(pipe); | |
2f98382d KM |
514 | default: |
515 | return ret; | |
516 | } | |
517 | ||
518 | /* | |
519 | * get usb request | |
520 | */ | |
521 | usbhs_usbreq_get_val(priv, &ctrl); | |
522 | ||
523 | switch (ctrl.bRequestType & USB_TYPE_MASK) { | |
524 | case USB_TYPE_STANDARD: | |
525 | switch (ctrl.bRequest) { | |
526 | case USB_REQ_CLEAR_FEATURE: | |
527 | recip_handler = &req_clear_feature; | |
528 | break; | |
ced6e09e KM |
529 | case USB_REQ_SET_FEATURE: |
530 | recip_handler = &req_set_feature; | |
531 | break; | |
17f7f769 KM |
532 | case USB_REQ_GET_STATUS: |
533 | recip_handler = &req_get_status; | |
534 | break; | |
2f98382d KM |
535 | } |
536 | } | |
537 | ||
538 | /* | |
539 | * setup stage / run recip | |
540 | */ | |
541 | if (recip_handler) | |
542 | ret = usbhsg_recip_run_handle(priv, recip_handler, &ctrl); | |
543 | else | |
544 | ret = gpriv->driver->setup(&gpriv->gadget, &ctrl); | |
545 | ||
546 | if (ret < 0) | |
e8d548d5 | 547 | usbhs_pipe_stall(pipe); |
2f98382d KM |
548 | |
549 | return ret; | |
550 | } | |
551 | ||
2f98382d KM |
552 | /* |
553 | * | |
554 | * usb_dcp_ops | |
555 | * | |
556 | */ | |
2f98382d KM |
557 | static int usbhsg_pipe_disable(struct usbhsg_uep *uep) |
558 | { | |
559 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
8a2c225d | 560 | struct usbhs_pkt *pkt; |
2f98382d | 561 | |
2f98382d | 562 | while (1) { |
97664a20 | 563 | pkt = usbhs_pkt_pop(pipe, NULL); |
8a2c225d | 564 | if (!pkt) |
2f98382d | 565 | break; |
91b158f4 | 566 | |
11ebf3ad | 567 | usbhsg_queue_pop(uep, usbhsg_pkt_to_ureq(pkt), -ESHUTDOWN); |
2f98382d KM |
568 | } |
569 | ||
91b158f4 KM |
570 | usbhs_pipe_disable(pipe); |
571 | ||
2f98382d KM |
572 | return 0; |
573 | } | |
574 | ||
575 | /* | |
576 | * | |
577 | * usb_ep_ops | |
578 | * | |
579 | */ | |
580 | static int usbhsg_ep_enable(struct usb_ep *ep, | |
581 | const struct usb_endpoint_descriptor *desc) | |
582 | { | |
583 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
584 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
585 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); | |
586 | struct usbhs_pipe *pipe; | |
2f98382d | 587 | int ret = -EIO; |
15e4292a YS |
588 | unsigned long flags; |
589 | ||
590 | usbhs_lock(priv, flags); | |
2f98382d | 591 | |
409ba9e7 KM |
592 | /* |
593 | * if it already have pipe, | |
594 | * nothing to do | |
595 | */ | |
08e6c611 KM |
596 | if (uep->pipe) { |
597 | usbhs_pipe_clear(uep->pipe); | |
6e6db82b | 598 | usbhs_pipe_sequence_data0(uep->pipe); |
15e4292a YS |
599 | ret = 0; |
600 | goto usbhsg_ep_enable_end; | |
08e6c611 | 601 | } |
409ba9e7 | 602 | |
f5aa889f KM |
603 | pipe = usbhs_pipe_malloc(priv, |
604 | usb_endpoint_type(desc), | |
605 | usb_endpoint_dir_in(desc)); | |
2f98382d KM |
606 | if (pipe) { |
607 | uep->pipe = pipe; | |
608 | pipe->mod_private = uep; | |
2f98382d | 609 | |
f5aa889f | 610 | /* set epnum / maxp */ |
bc6fbf59 | 611 | usbhs_pipe_config_update(pipe, 0, |
f5aa889f KM |
612 | usb_endpoint_num(desc), |
613 | usb_endpoint_maxp(desc)); | |
614 | ||
233f519d KM |
615 | /* |
616 | * usbhs_fifo_dma_push/pop_handler try to | |
617 | * use dmaengine if possible. | |
618 | * It will use pio handler if impossible. | |
619 | */ | |
9ab967e6 | 620 | if (usb_endpoint_dir_in(desc)) { |
0c6ef985 | 621 | pipe->handler = &usbhs_fifo_dma_push_handler; |
9ab967e6 | 622 | } else { |
0c6ef985 | 623 | pipe->handler = &usbhs_fifo_dma_pop_handler; |
9ab967e6 YS |
624 | usbhs_xxxsts_clear(priv, BRDYSTS, |
625 | usbhs_pipe_number(pipe)); | |
626 | } | |
2f98382d KM |
627 | |
628 | ret = 0; | |
629 | } | |
cb96632c | 630 | |
15e4292a YS |
631 | usbhsg_ep_enable_end: |
632 | usbhs_unlock(priv, flags); | |
633 | ||
2f98382d KM |
634 | return ret; |
635 | } | |
636 | ||
637 | static int usbhsg_ep_disable(struct usb_ep *ep) | |
638 | { | |
639 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
b8b9c974 YS |
640 | struct usbhs_pipe *pipe; |
641 | unsigned long flags; | |
2f98382d | 642 | |
b8b9c974 YS |
643 | spin_lock_irqsave(&uep->lock, flags); |
644 | pipe = usbhsg_uep_to_pipe(uep); | |
b7d44c36 | 645 | if (!pipe) |
b8b9c974 | 646 | goto out; |
11432050 | 647 | |
d9fa298f | 648 | usbhsg_pipe_disable(uep); |
dfb87b8b | 649 | usbhs_pipe_free(pipe); |
d9fa298f KM |
650 | |
651 | uep->pipe->mod_private = NULL; | |
652 | uep->pipe = NULL; | |
653 | ||
b8b9c974 YS |
654 | out: |
655 | spin_unlock_irqrestore(&uep->lock, flags); | |
656 | ||
d9fa298f | 657 | return 0; |
2f98382d KM |
658 | } |
659 | ||
660 | static struct usb_request *usbhsg_ep_alloc_request(struct usb_ep *ep, | |
661 | gfp_t gfp_flags) | |
662 | { | |
663 | struct usbhsg_request *ureq; | |
664 | ||
665 | ureq = kzalloc(sizeof *ureq, gfp_flags); | |
666 | if (!ureq) | |
667 | return NULL; | |
668 | ||
6acb95d4 KM |
669 | usbhs_pkt_init(usbhsg_ureq_to_pkt(ureq)); |
670 | ||
2f98382d KM |
671 | return &ureq->req; |
672 | } | |
673 | ||
674 | static void usbhsg_ep_free_request(struct usb_ep *ep, | |
675 | struct usb_request *req) | |
676 | { | |
677 | struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); | |
678 | ||
6acb95d4 | 679 | WARN_ON(!list_empty(&ureq->pkt.node)); |
2f98382d KM |
680 | kfree(ureq); |
681 | } | |
682 | ||
683 | static int usbhsg_ep_queue(struct usb_ep *ep, struct usb_request *req, | |
684 | gfp_t gfp_flags) | |
685 | { | |
686 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
687 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
688 | struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); | |
689 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
2f98382d KM |
690 | |
691 | /* param check */ | |
692 | if (usbhsg_is_not_connected(gpriv) || | |
693 | unlikely(!gpriv->driver) || | |
694 | unlikely(!pipe)) | |
97664a20 | 695 | return -ESHUTDOWN; |
2f98382d | 696 | |
97664a20 | 697 | usbhsg_queue_push(uep, ureq); |
2f98382d | 698 | |
97664a20 | 699 | return 0; |
2f98382d KM |
700 | } |
701 | ||
702 | static int usbhsg_ep_dequeue(struct usb_ep *ep, struct usb_request *req) | |
703 | { | |
704 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
705 | struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); | |
b8b9c974 YS |
706 | struct usbhs_pipe *pipe; |
707 | unsigned long flags; | |
2f98382d | 708 | |
b8b9c974 YS |
709 | spin_lock_irqsave(&uep->lock, flags); |
710 | pipe = usbhsg_uep_to_pipe(uep); | |
c9eb2950 YS |
711 | if (pipe) |
712 | usbhs_pkt_pop(pipe, usbhsg_ureq_to_pkt(ureq)); | |
713 | ||
714 | /* | |
715 | * To dequeue a request, this driver should call the usbhsg_queue_pop() | |
716 | * even if the pipe is NULL. | |
717 | */ | |
2f98382d | 718 | usbhsg_queue_pop(uep, ureq, -ECONNRESET); |
b8b9c974 | 719 | spin_unlock_irqrestore(&uep->lock, flags); |
2f98382d | 720 | |
2f98382d KM |
721 | return 0; |
722 | } | |
723 | ||
724 | static int __usbhsg_ep_set_halt_wedge(struct usb_ep *ep, int halt, int wedge) | |
725 | { | |
726 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
727 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
728 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
97664a20 | 729 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); |
2f98382d | 730 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); |
2f98382d | 731 | unsigned long flags; |
2f98382d | 732 | |
97664a20 | 733 | usbhsg_pipe_disable(uep); |
2f98382d | 734 | |
97664a20 KM |
735 | dev_dbg(dev, "set halt %d (pipe %d)\n", |
736 | halt, usbhs_pipe_number(pipe)); | |
2f98382d | 737 | |
97664a20 KM |
738 | /******************** spin lock ********************/ |
739 | usbhs_lock(priv, flags); | |
2f98382d | 740 | |
97664a20 KM |
741 | if (halt) |
742 | usbhs_pipe_stall(pipe); | |
743 | else | |
744 | usbhs_pipe_disable(pipe); | |
2f98382d | 745 | |
97664a20 KM |
746 | if (halt && wedge) |
747 | usbhsg_status_set(gpriv, USBHSG_STATUS_WEDGE); | |
748 | else | |
749 | usbhsg_status_clr(gpriv, USBHSG_STATUS_WEDGE); | |
2f98382d | 750 | |
97664a20 | 751 | usbhs_unlock(priv, flags); |
2f98382d KM |
752 | /******************** spin unlock ******************/ |
753 | ||
97664a20 | 754 | return 0; |
2f98382d KM |
755 | } |
756 | ||
757 | static int usbhsg_ep_set_halt(struct usb_ep *ep, int value) | |
758 | { | |
759 | return __usbhsg_ep_set_halt_wedge(ep, value, 0); | |
760 | } | |
761 | ||
762 | static int usbhsg_ep_set_wedge(struct usb_ep *ep) | |
763 | { | |
764 | return __usbhsg_ep_set_halt_wedge(ep, 1, 1); | |
765 | } | |
766 | ||
767 | static struct usb_ep_ops usbhsg_ep_ops = { | |
768 | .enable = usbhsg_ep_enable, | |
769 | .disable = usbhsg_ep_disable, | |
770 | ||
771 | .alloc_request = usbhsg_ep_alloc_request, | |
772 | .free_request = usbhsg_ep_free_request, | |
773 | ||
774 | .queue = usbhsg_ep_queue, | |
775 | .dequeue = usbhsg_ep_dequeue, | |
776 | ||
777 | .set_halt = usbhsg_ep_set_halt, | |
778 | .set_wedge = usbhsg_ep_set_wedge, | |
779 | }; | |
780 | ||
04a5def3 TK |
781 | /* |
782 | * pullup control | |
783 | */ | |
784 | static int usbhsg_can_pullup(struct usbhs_priv *priv) | |
785 | { | |
786 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
787 | ||
788 | return gpriv->driver && | |
789 | usbhsg_status_has(gpriv, USBHSG_STATUS_SOFT_CONNECT); | |
790 | } | |
791 | ||
792 | static void usbhsg_update_pullup(struct usbhs_priv *priv) | |
793 | { | |
794 | if (usbhsg_can_pullup(priv)) | |
795 | usbhs_sys_function_pullup(priv, 1); | |
796 | else | |
797 | usbhs_sys_function_pullup(priv, 0); | |
798 | } | |
799 | ||
2f98382d KM |
800 | /* |
801 | * usb module start/end | |
802 | */ | |
803 | static int usbhsg_try_start(struct usbhs_priv *priv, u32 status) | |
804 | { | |
805 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
806 | struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); | |
807 | struct usbhs_mod *mod = usbhs_mod_get_current(priv); | |
808 | struct device *dev = usbhs_priv_to_dev(priv); | |
2f98382d | 809 | unsigned long flags; |
97664a20 | 810 | int ret = 0; |
2f98382d KM |
811 | |
812 | /******************** spin lock ********************/ | |
97664a20 | 813 | usbhs_lock(priv, flags); |
2f98382d | 814 | |
2f98382d KM |
815 | usbhsg_status_set(gpriv, status); |
816 | if (!(usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) && | |
817 | usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD))) | |
97664a20 KM |
818 | ret = -1; /* not ready */ |
819 | ||
820 | usbhs_unlock(priv, flags); | |
821 | /******************** spin unlock ********************/ | |
822 | ||
823 | if (ret < 0) | |
824 | return 0; /* not ready is not error */ | |
2f98382d | 825 | |
97664a20 KM |
826 | /* |
827 | * enable interrupt and systems if ready | |
828 | */ | |
2f98382d KM |
829 | dev_dbg(dev, "start gadget\n"); |
830 | ||
831 | /* | |
832 | * pipe initialize and enable DCP | |
833 | */ | |
cdeb7943 | 834 | usbhs_fifo_init(priv); |
4bd04811 | 835 | usbhs_pipe_init(priv, |
e73a9891 | 836 | usbhsg_dma_map_ctrl); |
97664a20 | 837 | |
d9fa298f | 838 | /* dcp init instead of usbhsg_ep_enable() */ |
97664a20 KM |
839 | dcp->pipe = usbhs_dcp_malloc(priv); |
840 | dcp->pipe->mod_private = dcp; | |
bc6fbf59 | 841 | usbhs_pipe_config_update(dcp->pipe, 0, 0, 64); |
2f98382d KM |
842 | |
843 | /* | |
844 | * system config enble | |
845 | * - HI speed | |
846 | * - function | |
847 | * - usb module | |
848 | */ | |
2f98382d | 849 | usbhs_sys_function_ctrl(priv, 1); |
04a5def3 | 850 | usbhsg_update_pullup(priv); |
2f98382d KM |
851 | |
852 | /* | |
853 | * enable irq callback | |
854 | */ | |
855 | mod->irq_dev_state = usbhsg_irq_dev_state; | |
856 | mod->irq_ctrl_stage = usbhsg_irq_ctrl_stage; | |
2f98382d KM |
857 | usbhs_irq_callback_update(priv, mod); |
858 | ||
2f98382d KM |
859 | return 0; |
860 | } | |
861 | ||
862 | static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status) | |
863 | { | |
864 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
865 | struct usbhs_mod *mod = usbhs_mod_get_current(priv); | |
b8b9c974 | 866 | struct usbhsg_uep *uep; |
2f98382d | 867 | struct device *dev = usbhs_priv_to_dev(priv); |
2f98382d | 868 | unsigned long flags; |
b8b9c974 | 869 | int ret = 0, i; |
2f98382d KM |
870 | |
871 | /******************** spin lock ********************/ | |
97664a20 | 872 | usbhs_lock(priv, flags); |
2f98382d | 873 | |
2f98382d KM |
874 | usbhsg_status_clr(gpriv, status); |
875 | if (!usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) && | |
876 | !usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD)) | |
97664a20 KM |
877 | ret = -1; /* already done */ |
878 | ||
879 | usbhs_unlock(priv, flags); | |
880 | /******************** spin unlock ********************/ | |
881 | ||
882 | if (ret < 0) | |
883 | return 0; /* already done is not error */ | |
2f98382d | 884 | |
97664a20 KM |
885 | /* |
886 | * disable interrupt and systems if 1st try | |
887 | */ | |
dad67397 KM |
888 | usbhs_fifo_quit(priv); |
889 | ||
2f98382d KM |
890 | /* disable all irq */ |
891 | mod->irq_dev_state = NULL; | |
892 | mod->irq_ctrl_stage = NULL; | |
2f98382d KM |
893 | usbhs_irq_callback_update(priv, mod); |
894 | ||
2f98382d KM |
895 | gpriv->gadget.speed = USB_SPEED_UNKNOWN; |
896 | ||
897 | /* disable sys */ | |
dfbb7f4f | 898 | usbhs_sys_set_test_mode(priv, 0); |
2f98382d | 899 | usbhs_sys_function_ctrl(priv, 0); |
2f98382d | 900 | |
b8b9c974 YS |
901 | /* disable all eps */ |
902 | usbhsg_for_each_uep_with_dcp(uep, gpriv, i) | |
903 | usbhsg_ep_disable(&uep->ep); | |
2f98382d | 904 | |
2f98382d KM |
905 | dev_dbg(dev, "stop gadget\n"); |
906 | ||
2f98382d KM |
907 | return 0; |
908 | } | |
909 | ||
b5a28756 PE |
910 | /* |
911 | * VBUS provided by the PHY | |
912 | */ | |
913 | static int usbhsm_phy_get_vbus(struct platform_device *pdev) | |
914 | { | |
915 | struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev); | |
916 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
917 | ||
918 | return gpriv->vbus_active; | |
919 | } | |
920 | ||
921 | static void usbhs_mod_phy_mode(struct usbhs_priv *priv) | |
922 | { | |
923 | struct usbhs_mod_info *info = &priv->mod_info; | |
924 | ||
925 | info->irq_vbus = NULL; | |
926 | priv->pfunc.get_vbus = usbhsm_phy_get_vbus; | |
927 | ||
928 | usbhs_irq_callback_update(priv, NULL); | |
929 | } | |
930 | ||
2f98382d KM |
931 | /* |
932 | * | |
933 | * linux usb function | |
934 | * | |
935 | */ | |
af1d7056 FB |
936 | static int usbhsg_gadget_start(struct usb_gadget *gadget, |
937 | struct usb_gadget_driver *driver) | |
2f98382d | 938 | { |
af1d7056 | 939 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); |
f8eff0a0 | 940 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); |
b5a28756 PE |
941 | struct device *dev = usbhs_priv_to_dev(priv); |
942 | int ret; | |
2f98382d | 943 | |
af1d7056 | 944 | if (!driver || |
2f98382d | 945 | !driver->setup || |
7177aed4 | 946 | driver->max_speed < USB_SPEED_FULL) |
2f98382d | 947 | return -EINVAL; |
3b872188 | 948 | |
b5a28756 PE |
949 | /* connect to bus through transceiver */ |
950 | if (!IS_ERR_OR_NULL(gpriv->transceiver)) { | |
951 | ret = otg_set_peripheral(gpriv->transceiver->otg, | |
952 | &gpriv->gadget); | |
953 | if (ret) { | |
954 | dev_err(dev, "%s: can't bind to transceiver\n", | |
955 | gpriv->gadget.name); | |
956 | return ret; | |
957 | } | |
958 | ||
959 | /* get vbus using phy versions */ | |
960 | usbhs_mod_phy_mode(priv); | |
961 | } | |
962 | ||
2f98382d KM |
963 | /* first hook up the driver ... */ |
964 | gpriv->driver = driver; | |
2f98382d | 965 | |
2f98382d | 966 | return usbhsg_try_start(priv, USBHSG_STATUS_REGISTERD); |
2f98382d | 967 | } |
2f98382d | 968 | |
22835b80 | 969 | static int usbhsg_gadget_stop(struct usb_gadget *gadget) |
2f98382d | 970 | { |
af1d7056 | 971 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); |
f8eff0a0 | 972 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); |
2f98382d | 973 | |
2f98382d | 974 | usbhsg_try_stop(priv, USBHSG_STATUS_REGISTERD); |
b5a28756 PE |
975 | |
976 | if (!IS_ERR_OR_NULL(gpriv->transceiver)) | |
977 | otg_set_peripheral(gpriv->transceiver->otg, NULL); | |
978 | ||
2f98382d KM |
979 | gpriv->driver = NULL; |
980 | ||
2f98382d KM |
981 | return 0; |
982 | } | |
2f98382d KM |
983 | |
984 | /* | |
985 | * usb gadget ops | |
986 | */ | |
987 | static int usbhsg_get_frame(struct usb_gadget *gadget) | |
988 | { | |
989 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); | |
990 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); | |
991 | ||
992 | return usbhs_frame_get_num(priv); | |
993 | } | |
994 | ||
4cd2f599 KM |
995 | static int usbhsg_pullup(struct usb_gadget *gadget, int is_on) |
996 | { | |
997 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); | |
998 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); | |
04a5def3 | 999 | unsigned long flags; |
4cd2f599 | 1000 | |
04a5def3 TK |
1001 | usbhs_lock(priv, flags); |
1002 | if (is_on) | |
1003 | usbhsg_status_set(gpriv, USBHSG_STATUS_SOFT_CONNECT); | |
1004 | else | |
1005 | usbhsg_status_clr(gpriv, USBHSG_STATUS_SOFT_CONNECT); | |
1006 | usbhsg_update_pullup(priv); | |
1007 | usbhs_unlock(priv, flags); | |
4cd2f599 KM |
1008 | |
1009 | return 0; | |
1010 | } | |
1011 | ||
cac402dd SY |
1012 | static int usbhsg_set_selfpowered(struct usb_gadget *gadget, int is_self) |
1013 | { | |
1014 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); | |
1015 | ||
1016 | if (is_self) | |
1017 | usbhsg_status_set(gpriv, USBHSG_STATUS_SELF_POWERED); | |
1018 | else | |
1019 | usbhsg_status_clr(gpriv, USBHSG_STATUS_SELF_POWERED); | |
1020 | ||
a17fd412 PC |
1021 | gadget->is_selfpowered = (is_self != 0); |
1022 | ||
cac402dd SY |
1023 | return 0; |
1024 | } | |
1025 | ||
b5a28756 PE |
1026 | static int usbhsg_vbus_session(struct usb_gadget *gadget, int is_active) |
1027 | { | |
1028 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); | |
1029 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); | |
1030 | struct platform_device *pdev = usbhs_priv_to_pdev(priv); | |
1031 | ||
1032 | gpriv->vbus_active = !!is_active; | |
1033 | ||
1034 | renesas_usbhs_call_notify_hotplug(pdev); | |
1035 | ||
1036 | return 0; | |
1037 | } | |
1038 | ||
eeef4587 | 1039 | static const struct usb_gadget_ops usbhsg_gadget_ops = { |
2f98382d | 1040 | .get_frame = usbhsg_get_frame, |
cac402dd | 1041 | .set_selfpowered = usbhsg_set_selfpowered, |
af1d7056 FB |
1042 | .udc_start = usbhsg_gadget_start, |
1043 | .udc_stop = usbhsg_gadget_stop, | |
4cd2f599 | 1044 | .pullup = usbhsg_pullup, |
b5a28756 | 1045 | .vbus_session = usbhsg_vbus_session, |
2f98382d KM |
1046 | }; |
1047 | ||
1048 | static int usbhsg_start(struct usbhs_priv *priv) | |
1049 | { | |
1050 | return usbhsg_try_start(priv, USBHSG_STATUS_STARTED); | |
1051 | } | |
1052 | ||
1053 | static int usbhsg_stop(struct usbhs_priv *priv) | |
1054 | { | |
8885a897 KM |
1055 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); |
1056 | ||
1057 | /* cable disconnect */ | |
1058 | if (gpriv->driver && | |
1059 | gpriv->driver->disconnect) | |
1060 | gpriv->driver->disconnect(&gpriv->gadget); | |
1061 | ||
2f98382d KM |
1062 | return usbhsg_try_stop(priv, USBHSG_STATUS_STARTED); |
1063 | } | |
1064 | ||
b7a8d17d | 1065 | int usbhs_mod_gadget_probe(struct usbhs_priv *priv) |
2f98382d KM |
1066 | { |
1067 | struct usbhsg_gpriv *gpriv; | |
1068 | struct usbhsg_uep *uep; | |
1069 | struct device *dev = usbhs_priv_to_dev(priv); | |
64c5f48b YS |
1070 | struct renesas_usbhs_driver_pipe_config *pipe_configs = |
1071 | usbhs_get_dparam(priv, pipe_configs); | |
2f98382d KM |
1072 | int pipe_size = usbhs_get_dparam(priv, pipe_size); |
1073 | int i; | |
0f91349b | 1074 | int ret; |
2f98382d KM |
1075 | |
1076 | gpriv = kzalloc(sizeof(struct usbhsg_gpriv), GFP_KERNEL); | |
7d80e4be | 1077 | if (!gpriv) |
2f98382d | 1078 | return -ENOMEM; |
2f98382d KM |
1079 | |
1080 | uep = kzalloc(sizeof(struct usbhsg_uep) * pipe_size, GFP_KERNEL); | |
1081 | if (!uep) { | |
0f91349b | 1082 | ret = -ENOMEM; |
2f98382d KM |
1083 | goto usbhs_mod_gadget_probe_err_gpriv; |
1084 | } | |
b8b9c974 | 1085 | spin_lock_init(&uep->lock); |
2f98382d | 1086 | |
b5a28756 PE |
1087 | gpriv->transceiver = usb_get_phy(USB_PHY_TYPE_UNDEFINED); |
1088 | dev_info(dev, "%stransceiver found\n", | |
3295235f | 1089 | !IS_ERR(gpriv->transceiver) ? "" : "no "); |
b5a28756 | 1090 | |
2f98382d KM |
1091 | /* |
1092 | * CAUTION | |
1093 | * | |
1094 | * There is no guarantee that it is possible to access usb module here. | |
1095 | * Don't accesses to it. | |
1096 | * The accesse will be enable after "usbhsg_start" | |
1097 | */ | |
1098 | ||
1099 | /* | |
1100 | * register itself | |
1101 | */ | |
1102 | usbhs_mod_register(priv, &gpriv->mod, USBHS_GADGET); | |
1103 | ||
1104 | /* init gpriv */ | |
1105 | gpriv->mod.name = "gadget"; | |
1106 | gpriv->mod.start = usbhsg_start; | |
1107 | gpriv->mod.stop = usbhsg_stop; | |
1108 | gpriv->uep = uep; | |
1109 | gpriv->uep_size = pipe_size; | |
1110 | usbhsg_status_init(gpriv); | |
1111 | ||
1112 | /* | |
1113 | * init gadget | |
1114 | */ | |
2f98382d KM |
1115 | gpriv->gadget.dev.parent = dev; |
1116 | gpriv->gadget.name = "renesas_usbhs_udc"; | |
1117 | gpriv->gadget.ops = &usbhsg_gadget_ops; | |
d327ab5b | 1118 | gpriv->gadget.max_speed = USB_SPEED_HIGH; |
ee5acabf YS |
1119 | gpriv->gadget.quirk_avoids_skb_reserve = usbhs_get_dparam(priv, |
1120 | has_usb_dmac); | |
2f98382d KM |
1121 | |
1122 | INIT_LIST_HEAD(&gpriv->gadget.ep_list); | |
1123 | ||
1124 | /* | |
1125 | * init usb_ep | |
1126 | */ | |
1127 | usbhsg_for_each_uep_with_dcp(uep, gpriv, i) { | |
1128 | uep->gpriv = gpriv; | |
58482945 | 1129 | uep->pipe = NULL; |
2f98382d KM |
1130 | snprintf(uep->ep_name, EP_NAME_SIZE, "ep%d", i); |
1131 | ||
1132 | uep->ep.name = uep->ep_name; | |
1133 | uep->ep.ops = &usbhsg_ep_ops; | |
1134 | INIT_LIST_HEAD(&uep->ep.ep_list); | |
2f98382d KM |
1135 | |
1136 | /* init DCP */ | |
1137 | if (usbhsg_is_dcp(uep)) { | |
1138 | gpriv->gadget.ep0 = &uep->ep; | |
e117e742 | 1139 | usb_ep_set_maxpacket_limit(&uep->ep, 64); |
916f7ac5 | 1140 | uep->ep.caps.type_control = true; |
64c5f48b YS |
1141 | } else { |
1142 | /* init normal pipe */ | |
1143 | if (pipe_configs[i].type == USB_ENDPOINT_XFER_ISOC) | |
1144 | uep->ep.caps.type_iso = true; | |
1145 | if (pipe_configs[i].type == USB_ENDPOINT_XFER_BULK) | |
1146 | uep->ep.caps.type_bulk = true; | |
1147 | if (pipe_configs[i].type == USB_ENDPOINT_XFER_INT) | |
1148 | uep->ep.caps.type_int = true; | |
1149 | usb_ep_set_maxpacket_limit(&uep->ep, | |
1150 | pipe_configs[i].bufsize); | |
2f98382d KM |
1151 | list_add_tail(&uep->ep.ep_list, &gpriv->gadget.ep_list); |
1152 | } | |
916f7ac5 RB |
1153 | uep->ep.caps.dir_in = true; |
1154 | uep->ep.caps.dir_out = true; | |
2f98382d KM |
1155 | } |
1156 | ||
0f91349b SAS |
1157 | ret = usb_add_gadget_udc(dev, &gpriv->gadget); |
1158 | if (ret) | |
0972ef71 | 1159 | goto err_add_udc; |
0f91349b SAS |
1160 | |
1161 | ||
2f98382d KM |
1162 | dev_info(dev, "gadget probed\n"); |
1163 | ||
1164 | return 0; | |
f8eff0a0 | 1165 | |
0f91349b SAS |
1166 | err_add_udc: |
1167 | kfree(gpriv->uep); | |
2f98382d KM |
1168 | |
1169 | usbhs_mod_gadget_probe_err_gpriv: | |
1170 | kfree(gpriv); | |
1171 | ||
0f91349b | 1172 | return ret; |
2f98382d KM |
1173 | } |
1174 | ||
b7a8d17d | 1175 | void usbhs_mod_gadget_remove(struct usbhs_priv *priv) |
2f98382d KM |
1176 | { |
1177 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
1178 | ||
0f91349b | 1179 | usb_del_gadget_udc(&gpriv->gadget); |
3b872188 | 1180 | |
3af51ac9 | 1181 | kfree(gpriv->uep); |
2f98382d KM |
1182 | kfree(gpriv); |
1183 | } |