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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> | |
24 | #include "common.h" | |
25 | ||
26 | /* | |
27 | * struct | |
28 | */ | |
29 | struct usbhsg_request { | |
30 | struct usb_request req; | |
4bd04811 | 31 | struct usbhs_pkt pkt; |
2f98382d KM |
32 | }; |
33 | ||
34 | #define EP_NAME_SIZE 8 | |
35 | struct usbhsg_gpriv; | |
2f98382d KM |
36 | struct usbhsg_uep { |
37 | struct usb_ep ep; | |
38 | struct usbhs_pipe *pipe; | |
2f98382d KM |
39 | |
40 | char ep_name[EP_NAME_SIZE]; | |
41 | ||
42 | struct usbhsg_gpriv *gpriv; | |
2f98382d KM |
43 | }; |
44 | ||
45 | struct usbhsg_gpriv { | |
46 | struct usb_gadget gadget; | |
47 | struct usbhs_mod mod; | |
48 | ||
49 | struct usbhsg_uep *uep; | |
50 | int uep_size; | |
51 | ||
52 | struct usb_gadget_driver *driver; | |
53 | ||
54 | u32 status; | |
55 | #define USBHSG_STATUS_STARTED (1 << 0) | |
56 | #define USBHSG_STATUS_REGISTERD (1 << 1) | |
57 | #define USBHSG_STATUS_WEDGE (1 << 2) | |
cac402dd | 58 | #define USBHSG_STATUS_SELF_POWERED (1 << 3) |
2f98382d KM |
59 | }; |
60 | ||
2f98382d KM |
61 | struct usbhsg_recip_handle { |
62 | char *name; | |
63 | int (*device)(struct usbhs_priv *priv, struct usbhsg_uep *uep, | |
64 | struct usb_ctrlrequest *ctrl); | |
65 | int (*interface)(struct usbhs_priv *priv, struct usbhsg_uep *uep, | |
66 | struct usb_ctrlrequest *ctrl); | |
67 | int (*endpoint)(struct usbhs_priv *priv, struct usbhsg_uep *uep, | |
68 | struct usb_ctrlrequest *ctrl); | |
69 | }; | |
70 | ||
71 | /* | |
72 | * macro | |
73 | */ | |
74 | #define usbhsg_priv_to_gpriv(priv) \ | |
75 | container_of( \ | |
76 | usbhs_mod_get(priv, USBHS_GADGET), \ | |
77 | struct usbhsg_gpriv, mod) | |
78 | ||
79 | #define __usbhsg_for_each_uep(start, pos, g, i) \ | |
e94c587e | 80 | for (i = start, pos = (g)->uep + i; \ |
2f98382d KM |
81 | i < (g)->uep_size; \ |
82 | i++, pos = (g)->uep + i) | |
83 | ||
84 | #define usbhsg_for_each_uep(pos, gpriv, i) \ | |
85 | __usbhsg_for_each_uep(1, pos, gpriv, i) | |
86 | ||
87 | #define usbhsg_for_each_uep_with_dcp(pos, gpriv, i) \ | |
88 | __usbhsg_for_each_uep(0, pos, gpriv, i) | |
89 | ||
90 | #define usbhsg_gadget_to_gpriv(g)\ | |
91 | container_of(g, struct usbhsg_gpriv, gadget) | |
92 | ||
93 | #define usbhsg_req_to_ureq(r)\ | |
94 | container_of(r, struct usbhsg_request, req) | |
95 | ||
96 | #define usbhsg_ep_to_uep(e) container_of(e, struct usbhsg_uep, ep) | |
2f98382d KM |
97 | #define usbhsg_gpriv_to_dev(gp) usbhs_priv_to_dev((gp)->mod.priv) |
98 | #define usbhsg_gpriv_to_priv(gp) ((gp)->mod.priv) | |
99 | #define usbhsg_gpriv_to_dcp(gp) ((gp)->uep) | |
100 | #define usbhsg_gpriv_to_nth_uep(gp, i) ((gp)->uep + i) | |
101 | #define usbhsg_uep_to_gpriv(u) ((u)->gpriv) | |
102 | #define usbhsg_uep_to_pipe(u) ((u)->pipe) | |
103 | #define usbhsg_pipe_to_uep(p) ((p)->mod_private) | |
104 | #define usbhsg_is_dcp(u) ((u) == usbhsg_gpriv_to_dcp((u)->gpriv)) | |
105 | ||
4bd04811 KM |
106 | #define usbhsg_ureq_to_pkt(u) (&(u)->pkt) |
107 | #define usbhsg_pkt_to_ureq(i) \ | |
108 | container_of(i, struct usbhsg_request, pkt) | |
109 | ||
2f98382d KM |
110 | #define usbhsg_is_not_connected(gp) ((gp)->gadget.speed == USB_SPEED_UNKNOWN) |
111 | ||
112 | /* status */ | |
113 | #define usbhsg_status_init(gp) do {(gp)->status = 0; } while (0) | |
114 | #define usbhsg_status_set(gp, b) (gp->status |= b) | |
115 | #define usbhsg_status_clr(gp, b) (gp->status &= ~b) | |
116 | #define usbhsg_status_has(gp, b) (gp->status & b) | |
117 | ||
118 | /* | |
233f519d | 119 | * queue push/pop |
2f98382d | 120 | */ |
2f98382d KM |
121 | static void usbhsg_queue_pop(struct usbhsg_uep *uep, |
122 | struct usbhsg_request *ureq, | |
123 | int status) | |
124 | { | |
125 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
126 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
127 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
2f98382d KM |
128 | |
129 | dev_dbg(dev, "pipe %d : queue pop\n", usbhs_pipe_number(pipe)); | |
130 | ||
2f98382d KM |
131 | ureq->req.status = status; |
132 | ureq->req.complete(&uep->ep, &ureq->req); | |
2f98382d KM |
133 | } |
134 | ||
2cc97197 | 135 | static void usbhsg_queue_done(struct usbhs_priv *priv, struct usbhs_pkt *pkt) |
2f98382d | 136 | { |
4bd04811 KM |
137 | struct usbhs_pipe *pipe = pkt->pipe; |
138 | struct usbhsg_uep *uep = usbhsg_pipe_to_uep(pipe); | |
139 | struct usbhsg_request *ureq = usbhsg_pkt_to_ureq(pkt); | |
2f98382d | 140 | |
659d4954 | 141 | ureq->req.actual = pkt->actual; |
2f98382d | 142 | |
659d4954 | 143 | usbhsg_queue_pop(uep, ureq, 0); |
4bd04811 KM |
144 | } |
145 | ||
b331872b KM |
146 | static void usbhsg_queue_push(struct usbhsg_uep *uep, |
147 | struct usbhsg_request *ureq) | |
148 | { | |
149 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
150 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
151 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
152 | struct usbhs_pkt *pkt = usbhsg_ureq_to_pkt(ureq); | |
153 | struct usb_request *req = &ureq->req; | |
154 | ||
155 | req->actual = 0; | |
156 | req->status = -EINPROGRESS; | |
157 | usbhs_pkt_push(pipe, pkt, usbhsg_queue_done, | |
3edeee38 | 158 | req->buf, req->length, req->zero, -1); |
654c35ab | 159 | usbhs_pkt_start(pipe); |
b331872b KM |
160 | |
161 | dev_dbg(dev, "pipe %d : queue push (%d)\n", | |
162 | usbhs_pipe_number(pipe), | |
163 | req->length); | |
164 | } | |
165 | ||
233f519d KM |
166 | /* |
167 | * dma map/unmap | |
168 | */ | |
ade78f9f | 169 | static int usbhsg_dma_map_ctrl(struct usbhs_pkt *pkt, int map) |
e73a9891 KM |
170 | { |
171 | struct usbhsg_request *ureq = usbhsg_pkt_to_ureq(pkt); | |
172 | struct usb_request *req = &ureq->req; | |
e73a9891 KM |
173 | struct usbhs_pipe *pipe = pkt->pipe; |
174 | struct usbhsg_uep *uep = usbhsg_pipe_to_uep(pipe); | |
175 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
e73a9891 | 176 | enum dma_data_direction dir; |
ade78f9f | 177 | int ret = 0; |
e73a9891 | 178 | |
ade78f9f | 179 | dir = usbhs_pipe_is_dir_host(pipe); |
e73a9891 | 180 | |
ade78f9f FB |
181 | if (map) { |
182 | /* it can not use scatter/gather */ | |
183 | WARN_ON(req->num_sgs); | |
184 | ||
185 | ret = usb_gadget_map_request(&gpriv->gadget, req, dir); | |
186 | if (ret < 0) | |
187 | return ret; | |
188 | ||
189 | pkt->dma = req->dma; | |
190 | } else { | |
191 | usb_gadget_unmap_request(&gpriv->gadget, req, dir); | |
192 | } | |
193 | ||
194 | return ret; | |
e73a9891 KM |
195 | } |
196 | ||
2f98382d KM |
197 | /* |
198 | * USB_TYPE_STANDARD / clear feature functions | |
199 | */ | |
200 | static int usbhsg_recip_handler_std_control_done(struct usbhs_priv *priv, | |
201 | struct usbhsg_uep *uep, | |
202 | struct usb_ctrlrequest *ctrl) | |
203 | { | |
204 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
205 | struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); | |
206 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp); | |
207 | ||
208 | usbhs_dcp_control_transfer_done(pipe); | |
209 | ||
210 | return 0; | |
211 | } | |
212 | ||
213 | static int usbhsg_recip_handler_std_clear_endpoint(struct usbhs_priv *priv, | |
214 | struct usbhsg_uep *uep, | |
215 | struct usb_ctrlrequest *ctrl) | |
216 | { | |
217 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
218 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
219 | ||
220 | if (!usbhsg_status_has(gpriv, USBHSG_STATUS_WEDGE)) { | |
e8d548d5 | 221 | usbhs_pipe_disable(pipe); |
6e6db82b | 222 | usbhs_pipe_sequence_data0(pipe); |
e8d548d5 | 223 | usbhs_pipe_enable(pipe); |
2f98382d KM |
224 | } |
225 | ||
226 | usbhsg_recip_handler_std_control_done(priv, uep, ctrl); | |
227 | ||
25fa7079 KM |
228 | usbhs_pkt_start(pipe); |
229 | ||
2f98382d KM |
230 | return 0; |
231 | } | |
232 | ||
233 | struct usbhsg_recip_handle req_clear_feature = { | |
234 | .name = "clear feature", | |
235 | .device = usbhsg_recip_handler_std_control_done, | |
236 | .interface = usbhsg_recip_handler_std_control_done, | |
237 | .endpoint = usbhsg_recip_handler_std_clear_endpoint, | |
238 | }; | |
239 | ||
ced6e09e KM |
240 | /* |
241 | * USB_TYPE_STANDARD / set feature functions | |
242 | */ | |
dfbb7f4f KM |
243 | static int usbhsg_recip_handler_std_set_device(struct usbhs_priv *priv, |
244 | struct usbhsg_uep *uep, | |
245 | struct usb_ctrlrequest *ctrl) | |
246 | { | |
247 | switch (le16_to_cpu(ctrl->wValue)) { | |
248 | case USB_DEVICE_TEST_MODE: | |
249 | usbhsg_recip_handler_std_control_done(priv, uep, ctrl); | |
250 | udelay(100); | |
251 | usbhs_sys_set_test_mode(priv, le16_to_cpu(ctrl->wIndex >> 8)); | |
252 | break; | |
253 | default: | |
254 | usbhsg_recip_handler_std_control_done(priv, uep, ctrl); | |
255 | break; | |
256 | } | |
257 | ||
258 | return 0; | |
259 | } | |
260 | ||
ced6e09e KM |
261 | static int usbhsg_recip_handler_std_set_endpoint(struct usbhs_priv *priv, |
262 | struct usbhsg_uep *uep, | |
263 | struct usb_ctrlrequest *ctrl) | |
264 | { | |
265 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
266 | ||
267 | usbhs_pipe_stall(pipe); | |
268 | ||
269 | usbhsg_recip_handler_std_control_done(priv, uep, ctrl); | |
270 | ||
271 | return 0; | |
272 | } | |
273 | ||
274 | struct usbhsg_recip_handle req_set_feature = { | |
275 | .name = "set feature", | |
dfbb7f4f | 276 | .device = usbhsg_recip_handler_std_set_device, |
ced6e09e KM |
277 | .interface = usbhsg_recip_handler_std_control_done, |
278 | .endpoint = usbhsg_recip_handler_std_set_endpoint, | |
279 | }; | |
280 | ||
17f7f769 KM |
281 | /* |
282 | * USB_TYPE_STANDARD / get status functions | |
283 | */ | |
284 | static void __usbhsg_recip_send_complete(struct usb_ep *ep, | |
285 | struct usb_request *req) | |
286 | { | |
287 | struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); | |
288 | ||
289 | /* free allocated recip-buffer/usb_request */ | |
290 | kfree(ureq->pkt.buf); | |
291 | usb_ep_free_request(ep, req); | |
292 | } | |
293 | ||
294 | static void __usbhsg_recip_send_status(struct usbhsg_gpriv *gpriv, | |
295 | unsigned short status) | |
296 | { | |
297 | struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); | |
298 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp); | |
299 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
300 | struct usb_request *req; | |
301 | unsigned short *buf; | |
302 | ||
303 | /* alloc new usb_request for recip */ | |
304 | req = usb_ep_alloc_request(&dcp->ep, GFP_ATOMIC); | |
305 | if (!req) { | |
306 | dev_err(dev, "recip request allocation fail\n"); | |
307 | return; | |
308 | } | |
309 | ||
310 | /* alloc recip data buffer */ | |
311 | buf = kmalloc(sizeof(*buf), GFP_ATOMIC); | |
312 | if (!buf) { | |
313 | usb_ep_free_request(&dcp->ep, req); | |
314 | dev_err(dev, "recip data allocation fail\n"); | |
315 | return; | |
316 | } | |
317 | ||
318 | /* recip data is status */ | |
319 | *buf = cpu_to_le16(status); | |
320 | ||
321 | /* allocated usb_request/buffer will be freed */ | |
322 | req->complete = __usbhsg_recip_send_complete; | |
323 | req->buf = buf; | |
324 | req->length = sizeof(*buf); | |
325 | req->zero = 0; | |
326 | ||
327 | /* push packet */ | |
328 | pipe->handler = &usbhs_fifo_pio_push_handler; | |
329 | usbhsg_queue_push(dcp, usbhsg_req_to_ureq(req)); | |
330 | } | |
331 | ||
332 | static int usbhsg_recip_handler_std_get_device(struct usbhs_priv *priv, | |
333 | struct usbhsg_uep *uep, | |
334 | struct usb_ctrlrequest *ctrl) | |
335 | { | |
336 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
cac402dd SY |
337 | unsigned short status = 0; |
338 | ||
339 | if (usbhsg_status_has(gpriv, USBHSG_STATUS_SELF_POWERED)) | |
340 | status = 1 << USB_DEVICE_SELF_POWERED; | |
17f7f769 KM |
341 | |
342 | __usbhsg_recip_send_status(gpriv, status); | |
343 | ||
344 | return 0; | |
345 | } | |
346 | ||
347 | static int usbhsg_recip_handler_std_get_interface(struct usbhs_priv *priv, | |
348 | struct usbhsg_uep *uep, | |
349 | struct usb_ctrlrequest *ctrl) | |
350 | { | |
351 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
352 | unsigned short status = 0; | |
353 | ||
354 | __usbhsg_recip_send_status(gpriv, status); | |
355 | ||
356 | return 0; | |
357 | } | |
358 | ||
359 | static int usbhsg_recip_handler_std_get_endpoint(struct usbhs_priv *priv, | |
360 | struct usbhsg_uep *uep, | |
361 | struct usb_ctrlrequest *ctrl) | |
362 | { | |
363 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
364 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
365 | unsigned short status = 0; | |
366 | ||
367 | if (usbhs_pipe_is_stall(pipe)) | |
368 | status = 1 << USB_ENDPOINT_HALT; | |
369 | ||
370 | __usbhsg_recip_send_status(gpriv, status); | |
371 | ||
372 | return 0; | |
373 | } | |
374 | ||
375 | struct usbhsg_recip_handle req_get_status = { | |
376 | .name = "get status", | |
377 | .device = usbhsg_recip_handler_std_get_device, | |
378 | .interface = usbhsg_recip_handler_std_get_interface, | |
379 | .endpoint = usbhsg_recip_handler_std_get_endpoint, | |
380 | }; | |
381 | ||
2f98382d KM |
382 | /* |
383 | * USB_TYPE handler | |
384 | */ | |
385 | static int usbhsg_recip_run_handle(struct usbhs_priv *priv, | |
386 | struct usbhsg_recip_handle *handler, | |
387 | struct usb_ctrlrequest *ctrl) | |
388 | { | |
389 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
390 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
391 | struct usbhsg_uep *uep; | |
0432eed0 | 392 | struct usbhs_pipe *pipe; |
2f98382d KM |
393 | int recip = ctrl->bRequestType & USB_RECIP_MASK; |
394 | int nth = le16_to_cpu(ctrl->wIndex) & USB_ENDPOINT_NUMBER_MASK; | |
7983bc74 | 395 | int ret = 0; |
2f98382d KM |
396 | int (*func)(struct usbhs_priv *priv, struct usbhsg_uep *uep, |
397 | struct usb_ctrlrequest *ctrl); | |
398 | char *msg; | |
399 | ||
400 | uep = usbhsg_gpriv_to_nth_uep(gpriv, nth); | |
0432eed0 KM |
401 | pipe = usbhsg_uep_to_pipe(uep); |
402 | if (!pipe) { | |
9a28b7bd | 403 | dev_err(dev, "wrong recip request\n"); |
25fa7079 | 404 | return -EINVAL; |
9a28b7bd | 405 | } |
2f98382d KM |
406 | |
407 | switch (recip) { | |
408 | case USB_RECIP_DEVICE: | |
409 | msg = "DEVICE"; | |
410 | func = handler->device; | |
411 | break; | |
412 | case USB_RECIP_INTERFACE: | |
413 | msg = "INTERFACE"; | |
414 | func = handler->interface; | |
415 | break; | |
416 | case USB_RECIP_ENDPOINT: | |
417 | msg = "ENDPOINT"; | |
418 | func = handler->endpoint; | |
419 | break; | |
420 | default: | |
421 | dev_warn(dev, "unsupported RECIP(%d)\n", recip); | |
422 | func = NULL; | |
423 | ret = -EINVAL; | |
424 | } | |
425 | ||
426 | if (func) { | |
427 | dev_dbg(dev, "%s (pipe %d :%s)\n", handler->name, nth, msg); | |
428 | ret = func(priv, uep, ctrl); | |
429 | } | |
430 | ||
431 | return ret; | |
432 | } | |
433 | ||
434 | /* | |
435 | * irq functions | |
436 | * | |
437 | * it will be called from usbhs_interrupt | |
438 | */ | |
439 | static int usbhsg_irq_dev_state(struct usbhs_priv *priv, | |
440 | struct usbhs_irq_state *irq_state) | |
441 | { | |
442 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
443 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
444 | ||
75587f52 | 445 | gpriv->gadget.speed = usbhs_bus_get_speed(priv); |
2f98382d KM |
446 | |
447 | dev_dbg(dev, "state = %x : speed : %d\n", | |
448 | usbhs_status_get_device_state(irq_state), | |
449 | gpriv->gadget.speed); | |
450 | ||
451 | return 0; | |
452 | } | |
453 | ||
454 | static int usbhsg_irq_ctrl_stage(struct usbhs_priv *priv, | |
455 | struct usbhs_irq_state *irq_state) | |
456 | { | |
457 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
458 | struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); | |
459 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp); | |
460 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
461 | struct usb_ctrlrequest ctrl; | |
462 | struct usbhsg_recip_handle *recip_handler = NULL; | |
463 | int stage = usbhs_status_get_ctrl_stage(irq_state); | |
464 | int ret = 0; | |
465 | ||
466 | dev_dbg(dev, "stage = %d\n", stage); | |
467 | ||
468 | /* | |
469 | * see Manual | |
470 | * | |
471 | * "Operation" | |
472 | * - "Interrupt Function" | |
473 | * - "Control Transfer Stage Transition Interrupt" | |
474 | * - Fig. "Control Transfer Stage Transitions" | |
475 | */ | |
476 | ||
477 | switch (stage) { | |
478 | case READ_DATA_STAGE: | |
0c6ef985 | 479 | pipe->handler = &usbhs_fifo_pio_push_handler; |
2f98382d KM |
480 | break; |
481 | case WRITE_DATA_STAGE: | |
0c6ef985 | 482 | pipe->handler = &usbhs_fifo_pio_pop_handler; |
2f98382d KM |
483 | break; |
484 | case NODATA_STATUS_STAGE: | |
0c6ef985 | 485 | pipe->handler = &usbhs_ctrl_stage_end_handler; |
2f98382d KM |
486 | break; |
487 | default: | |
488 | return ret; | |
489 | } | |
490 | ||
491 | /* | |
492 | * get usb request | |
493 | */ | |
494 | usbhs_usbreq_get_val(priv, &ctrl); | |
495 | ||
496 | switch (ctrl.bRequestType & USB_TYPE_MASK) { | |
497 | case USB_TYPE_STANDARD: | |
498 | switch (ctrl.bRequest) { | |
499 | case USB_REQ_CLEAR_FEATURE: | |
500 | recip_handler = &req_clear_feature; | |
501 | break; | |
ced6e09e KM |
502 | case USB_REQ_SET_FEATURE: |
503 | recip_handler = &req_set_feature; | |
504 | break; | |
17f7f769 KM |
505 | case USB_REQ_GET_STATUS: |
506 | recip_handler = &req_get_status; | |
507 | break; | |
2f98382d KM |
508 | } |
509 | } | |
510 | ||
511 | /* | |
512 | * setup stage / run recip | |
513 | */ | |
514 | if (recip_handler) | |
515 | ret = usbhsg_recip_run_handle(priv, recip_handler, &ctrl); | |
516 | else | |
517 | ret = gpriv->driver->setup(&gpriv->gadget, &ctrl); | |
518 | ||
519 | if (ret < 0) | |
e8d548d5 | 520 | usbhs_pipe_stall(pipe); |
2f98382d KM |
521 | |
522 | return ret; | |
523 | } | |
524 | ||
2f98382d KM |
525 | /* |
526 | * | |
527 | * usb_dcp_ops | |
528 | * | |
529 | */ | |
2f98382d KM |
530 | static int usbhsg_pipe_disable(struct usbhsg_uep *uep) |
531 | { | |
532 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
8a2c225d | 533 | struct usbhs_pkt *pkt; |
2f98382d | 534 | |
2f98382d | 535 | while (1) { |
97664a20 | 536 | pkt = usbhs_pkt_pop(pipe, NULL); |
8a2c225d | 537 | if (!pkt) |
2f98382d | 538 | break; |
91b158f4 KM |
539 | |
540 | usbhsg_queue_pop(uep, usbhsg_pkt_to_ureq(pkt), -ECONNRESET); | |
2f98382d KM |
541 | } |
542 | ||
91b158f4 KM |
543 | usbhs_pipe_disable(pipe); |
544 | ||
2f98382d KM |
545 | return 0; |
546 | } | |
547 | ||
548 | /* | |
549 | * | |
550 | * usb_ep_ops | |
551 | * | |
552 | */ | |
553 | static int usbhsg_ep_enable(struct usb_ep *ep, | |
554 | const struct usb_endpoint_descriptor *desc) | |
555 | { | |
556 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
557 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
558 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); | |
559 | struct usbhs_pipe *pipe; | |
2f98382d KM |
560 | int ret = -EIO; |
561 | ||
409ba9e7 KM |
562 | /* |
563 | * if it already have pipe, | |
564 | * nothing to do | |
565 | */ | |
08e6c611 KM |
566 | if (uep->pipe) { |
567 | usbhs_pipe_clear(uep->pipe); | |
6e6db82b | 568 | usbhs_pipe_sequence_data0(uep->pipe); |
409ba9e7 | 569 | return 0; |
08e6c611 | 570 | } |
409ba9e7 | 571 | |
f5aa889f KM |
572 | pipe = usbhs_pipe_malloc(priv, |
573 | usb_endpoint_type(desc), | |
574 | usb_endpoint_dir_in(desc)); | |
2f98382d KM |
575 | if (pipe) { |
576 | uep->pipe = pipe; | |
577 | pipe->mod_private = uep; | |
2f98382d | 578 | |
f5aa889f | 579 | /* set epnum / maxp */ |
bc6fbf59 | 580 | usbhs_pipe_config_update(pipe, 0, |
f5aa889f KM |
581 | usb_endpoint_num(desc), |
582 | usb_endpoint_maxp(desc)); | |
583 | ||
233f519d KM |
584 | /* |
585 | * usbhs_fifo_dma_push/pop_handler try to | |
586 | * use dmaengine if possible. | |
587 | * It will use pio handler if impossible. | |
588 | */ | |
2f98382d | 589 | if (usb_endpoint_dir_in(desc)) |
0c6ef985 | 590 | pipe->handler = &usbhs_fifo_dma_push_handler; |
2f98382d | 591 | else |
0c6ef985 | 592 | pipe->handler = &usbhs_fifo_dma_pop_handler; |
2f98382d KM |
593 | |
594 | ret = 0; | |
595 | } | |
cb96632c | 596 | |
2f98382d KM |
597 | return ret; |
598 | } | |
599 | ||
600 | static int usbhsg_ep_disable(struct usb_ep *ep) | |
601 | { | |
602 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
2f98382d | 603 | |
d9fa298f KM |
604 | usbhsg_pipe_disable(uep); |
605 | ||
606 | uep->pipe->mod_private = NULL; | |
607 | uep->pipe = NULL; | |
608 | ||
609 | return 0; | |
2f98382d KM |
610 | } |
611 | ||
612 | static struct usb_request *usbhsg_ep_alloc_request(struct usb_ep *ep, | |
613 | gfp_t gfp_flags) | |
614 | { | |
615 | struct usbhsg_request *ureq; | |
616 | ||
617 | ureq = kzalloc(sizeof *ureq, gfp_flags); | |
618 | if (!ureq) | |
619 | return NULL; | |
620 | ||
6acb95d4 KM |
621 | usbhs_pkt_init(usbhsg_ureq_to_pkt(ureq)); |
622 | ||
2f98382d KM |
623 | return &ureq->req; |
624 | } | |
625 | ||
626 | static void usbhsg_ep_free_request(struct usb_ep *ep, | |
627 | struct usb_request *req) | |
628 | { | |
629 | struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); | |
630 | ||
6acb95d4 | 631 | WARN_ON(!list_empty(&ureq->pkt.node)); |
2f98382d KM |
632 | kfree(ureq); |
633 | } | |
634 | ||
635 | static int usbhsg_ep_queue(struct usb_ep *ep, struct usb_request *req, | |
636 | gfp_t gfp_flags) | |
637 | { | |
638 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
639 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
640 | struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); | |
641 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
2f98382d KM |
642 | |
643 | /* param check */ | |
644 | if (usbhsg_is_not_connected(gpriv) || | |
645 | unlikely(!gpriv->driver) || | |
646 | unlikely(!pipe)) | |
97664a20 | 647 | return -ESHUTDOWN; |
2f98382d | 648 | |
97664a20 | 649 | usbhsg_queue_push(uep, ureq); |
2f98382d | 650 | |
97664a20 | 651 | return 0; |
2f98382d KM |
652 | } |
653 | ||
654 | static int usbhsg_ep_dequeue(struct usb_ep *ep, struct usb_request *req) | |
655 | { | |
656 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
657 | struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); | |
97664a20 | 658 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); |
2f98382d | 659 | |
97664a20 | 660 | usbhs_pkt_pop(pipe, usbhsg_ureq_to_pkt(ureq)); |
2f98382d KM |
661 | usbhsg_queue_pop(uep, ureq, -ECONNRESET); |
662 | ||
2f98382d KM |
663 | return 0; |
664 | } | |
665 | ||
666 | static int __usbhsg_ep_set_halt_wedge(struct usb_ep *ep, int halt, int wedge) | |
667 | { | |
668 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
669 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
670 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
97664a20 | 671 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); |
2f98382d | 672 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); |
2f98382d | 673 | unsigned long flags; |
2f98382d | 674 | |
97664a20 | 675 | usbhsg_pipe_disable(uep); |
2f98382d | 676 | |
97664a20 KM |
677 | dev_dbg(dev, "set halt %d (pipe %d)\n", |
678 | halt, usbhs_pipe_number(pipe)); | |
2f98382d | 679 | |
97664a20 KM |
680 | /******************** spin lock ********************/ |
681 | usbhs_lock(priv, flags); | |
2f98382d | 682 | |
97664a20 KM |
683 | if (halt) |
684 | usbhs_pipe_stall(pipe); | |
685 | else | |
686 | usbhs_pipe_disable(pipe); | |
2f98382d | 687 | |
97664a20 KM |
688 | if (halt && wedge) |
689 | usbhsg_status_set(gpriv, USBHSG_STATUS_WEDGE); | |
690 | else | |
691 | usbhsg_status_clr(gpriv, USBHSG_STATUS_WEDGE); | |
2f98382d | 692 | |
97664a20 | 693 | usbhs_unlock(priv, flags); |
2f98382d KM |
694 | /******************** spin unlock ******************/ |
695 | ||
97664a20 | 696 | return 0; |
2f98382d KM |
697 | } |
698 | ||
699 | static int usbhsg_ep_set_halt(struct usb_ep *ep, int value) | |
700 | { | |
701 | return __usbhsg_ep_set_halt_wedge(ep, value, 0); | |
702 | } | |
703 | ||
704 | static int usbhsg_ep_set_wedge(struct usb_ep *ep) | |
705 | { | |
706 | return __usbhsg_ep_set_halt_wedge(ep, 1, 1); | |
707 | } | |
708 | ||
709 | static struct usb_ep_ops usbhsg_ep_ops = { | |
710 | .enable = usbhsg_ep_enable, | |
711 | .disable = usbhsg_ep_disable, | |
712 | ||
713 | .alloc_request = usbhsg_ep_alloc_request, | |
714 | .free_request = usbhsg_ep_free_request, | |
715 | ||
716 | .queue = usbhsg_ep_queue, | |
717 | .dequeue = usbhsg_ep_dequeue, | |
718 | ||
719 | .set_halt = usbhsg_ep_set_halt, | |
720 | .set_wedge = usbhsg_ep_set_wedge, | |
721 | }; | |
722 | ||
723 | /* | |
724 | * usb module start/end | |
725 | */ | |
726 | static int usbhsg_try_start(struct usbhs_priv *priv, u32 status) | |
727 | { | |
728 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
729 | struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); | |
730 | struct usbhs_mod *mod = usbhs_mod_get_current(priv); | |
731 | struct device *dev = usbhs_priv_to_dev(priv); | |
2f98382d | 732 | unsigned long flags; |
97664a20 | 733 | int ret = 0; |
2f98382d KM |
734 | |
735 | /******************** spin lock ********************/ | |
97664a20 | 736 | usbhs_lock(priv, flags); |
2f98382d | 737 | |
2f98382d KM |
738 | usbhsg_status_set(gpriv, status); |
739 | if (!(usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) && | |
740 | usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD))) | |
97664a20 KM |
741 | ret = -1; /* not ready */ |
742 | ||
743 | usbhs_unlock(priv, flags); | |
744 | /******************** spin unlock ********************/ | |
745 | ||
746 | if (ret < 0) | |
747 | return 0; /* not ready is not error */ | |
2f98382d | 748 | |
97664a20 KM |
749 | /* |
750 | * enable interrupt and systems if ready | |
751 | */ | |
2f98382d KM |
752 | dev_dbg(dev, "start gadget\n"); |
753 | ||
754 | /* | |
755 | * pipe initialize and enable DCP | |
756 | */ | |
4bd04811 | 757 | usbhs_pipe_init(priv, |
e73a9891 | 758 | usbhsg_dma_map_ctrl); |
dad67397 | 759 | usbhs_fifo_init(priv); |
97664a20 | 760 | |
d9fa298f | 761 | /* dcp init instead of usbhsg_ep_enable() */ |
97664a20 KM |
762 | dcp->pipe = usbhs_dcp_malloc(priv); |
763 | dcp->pipe->mod_private = dcp; | |
bc6fbf59 | 764 | usbhs_pipe_config_update(dcp->pipe, 0, 0, 64); |
2f98382d KM |
765 | |
766 | /* | |
767 | * system config enble | |
768 | * - HI speed | |
769 | * - function | |
770 | * - usb module | |
771 | */ | |
2f98382d | 772 | usbhs_sys_function_ctrl(priv, 1); |
2f98382d KM |
773 | |
774 | /* | |
775 | * enable irq callback | |
776 | */ | |
777 | mod->irq_dev_state = usbhsg_irq_dev_state; | |
778 | mod->irq_ctrl_stage = usbhsg_irq_ctrl_stage; | |
2f98382d KM |
779 | usbhs_irq_callback_update(priv, mod); |
780 | ||
2f98382d KM |
781 | return 0; |
782 | } | |
783 | ||
784 | static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status) | |
785 | { | |
786 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
787 | struct usbhs_mod *mod = usbhs_mod_get_current(priv); | |
788 | struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); | |
789 | struct device *dev = usbhs_priv_to_dev(priv); | |
2f98382d | 790 | unsigned long flags; |
97664a20 | 791 | int ret = 0; |
2f98382d KM |
792 | |
793 | /******************** spin lock ********************/ | |
97664a20 | 794 | usbhs_lock(priv, flags); |
2f98382d | 795 | |
2f98382d KM |
796 | usbhsg_status_clr(gpriv, status); |
797 | if (!usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) && | |
798 | !usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD)) | |
97664a20 KM |
799 | ret = -1; /* already done */ |
800 | ||
801 | usbhs_unlock(priv, flags); | |
802 | /******************** spin unlock ********************/ | |
803 | ||
804 | if (ret < 0) | |
805 | return 0; /* already done is not error */ | |
2f98382d | 806 | |
97664a20 KM |
807 | /* |
808 | * disable interrupt and systems if 1st try | |
809 | */ | |
dad67397 KM |
810 | usbhs_fifo_quit(priv); |
811 | ||
2f98382d KM |
812 | /* disable all irq */ |
813 | mod->irq_dev_state = NULL; | |
814 | mod->irq_ctrl_stage = NULL; | |
2f98382d KM |
815 | usbhs_irq_callback_update(priv, mod); |
816 | ||
2f98382d KM |
817 | gpriv->gadget.speed = USB_SPEED_UNKNOWN; |
818 | ||
819 | /* disable sys */ | |
dfbb7f4f | 820 | usbhs_sys_set_test_mode(priv, 0); |
2f98382d | 821 | usbhs_sys_function_ctrl(priv, 0); |
2f98382d | 822 | |
d9fa298f | 823 | usbhsg_ep_disable(&dcp->ep); |
2f98382d | 824 | |
2f98382d KM |
825 | dev_dbg(dev, "stop gadget\n"); |
826 | ||
2f98382d KM |
827 | return 0; |
828 | } | |
829 | ||
830 | /* | |
831 | * | |
832 | * linux usb function | |
833 | * | |
834 | */ | |
af1d7056 FB |
835 | static int usbhsg_gadget_start(struct usb_gadget *gadget, |
836 | struct usb_gadget_driver *driver) | |
2f98382d | 837 | { |
af1d7056 | 838 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); |
f8eff0a0 | 839 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); |
2f98382d | 840 | |
af1d7056 | 841 | if (!driver || |
2f98382d | 842 | !driver->setup || |
7177aed4 | 843 | driver->max_speed < USB_SPEED_FULL) |
2f98382d | 844 | return -EINVAL; |
3b872188 | 845 | |
2f98382d KM |
846 | /* first hook up the driver ... */ |
847 | gpriv->driver = driver; | |
848 | gpriv->gadget.dev.driver = &driver->driver; | |
849 | ||
2f98382d | 850 | return usbhsg_try_start(priv, USBHSG_STATUS_REGISTERD); |
2f98382d | 851 | } |
2f98382d | 852 | |
af1d7056 FB |
853 | static int usbhsg_gadget_stop(struct usb_gadget *gadget, |
854 | struct usb_gadget_driver *driver) | |
2f98382d | 855 | { |
af1d7056 | 856 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); |
f8eff0a0 | 857 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); |
2f98382d KM |
858 | |
859 | if (!driver || | |
3b872188 | 860 | !driver->unbind) |
2f98382d KM |
861 | return -EINVAL; |
862 | ||
2f98382d | 863 | usbhsg_try_stop(priv, USBHSG_STATUS_REGISTERD); |
0cdd7d4b | 864 | gpriv->gadget.dev.driver = NULL; |
2f98382d KM |
865 | gpriv->driver = NULL; |
866 | ||
2f98382d KM |
867 | return 0; |
868 | } | |
2f98382d KM |
869 | |
870 | /* | |
871 | * usb gadget ops | |
872 | */ | |
873 | static int usbhsg_get_frame(struct usb_gadget *gadget) | |
874 | { | |
875 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); | |
876 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); | |
877 | ||
878 | return usbhs_frame_get_num(priv); | |
879 | } | |
880 | ||
4cd2f599 KM |
881 | static int usbhsg_pullup(struct usb_gadget *gadget, int is_on) |
882 | { | |
883 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); | |
884 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); | |
885 | ||
886 | usbhs_sys_function_pullup(priv, is_on); | |
887 | ||
888 | return 0; | |
889 | } | |
890 | ||
cac402dd SY |
891 | static int usbhsg_set_selfpowered(struct usb_gadget *gadget, int is_self) |
892 | { | |
893 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); | |
894 | ||
895 | if (is_self) | |
896 | usbhsg_status_set(gpriv, USBHSG_STATUS_SELF_POWERED); | |
897 | else | |
898 | usbhsg_status_clr(gpriv, USBHSG_STATUS_SELF_POWERED); | |
899 | ||
900 | return 0; | |
901 | } | |
902 | ||
2f98382d KM |
903 | static struct usb_gadget_ops usbhsg_gadget_ops = { |
904 | .get_frame = usbhsg_get_frame, | |
cac402dd | 905 | .set_selfpowered = usbhsg_set_selfpowered, |
af1d7056 FB |
906 | .udc_start = usbhsg_gadget_start, |
907 | .udc_stop = usbhsg_gadget_stop, | |
4cd2f599 | 908 | .pullup = usbhsg_pullup, |
2f98382d KM |
909 | }; |
910 | ||
911 | static int usbhsg_start(struct usbhs_priv *priv) | |
912 | { | |
913 | return usbhsg_try_start(priv, USBHSG_STATUS_STARTED); | |
914 | } | |
915 | ||
916 | static int usbhsg_stop(struct usbhs_priv *priv) | |
917 | { | |
8885a897 KM |
918 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); |
919 | ||
920 | /* cable disconnect */ | |
921 | if (gpriv->driver && | |
922 | gpriv->driver->disconnect) | |
923 | gpriv->driver->disconnect(&gpriv->gadget); | |
924 | ||
2f98382d KM |
925 | return usbhsg_try_stop(priv, USBHSG_STATUS_STARTED); |
926 | } | |
927 | ||
3b2a2e47 KM |
928 | static void usbhs_mod_gadget_release(struct device *pdev) |
929 | { | |
930 | /* do nothing */ | |
931 | } | |
932 | ||
b7a8d17d | 933 | int usbhs_mod_gadget_probe(struct usbhs_priv *priv) |
2f98382d KM |
934 | { |
935 | struct usbhsg_gpriv *gpriv; | |
936 | struct usbhsg_uep *uep; | |
937 | struct device *dev = usbhs_priv_to_dev(priv); | |
938 | int pipe_size = usbhs_get_dparam(priv, pipe_size); | |
939 | int i; | |
0f91349b | 940 | int ret; |
2f98382d KM |
941 | |
942 | gpriv = kzalloc(sizeof(struct usbhsg_gpriv), GFP_KERNEL); | |
943 | if (!gpriv) { | |
944 | dev_err(dev, "Could not allocate gadget priv\n"); | |
945 | return -ENOMEM; | |
946 | } | |
947 | ||
948 | uep = kzalloc(sizeof(struct usbhsg_uep) * pipe_size, GFP_KERNEL); | |
949 | if (!uep) { | |
950 | dev_err(dev, "Could not allocate ep\n"); | |
0f91349b | 951 | ret = -ENOMEM; |
2f98382d KM |
952 | goto usbhs_mod_gadget_probe_err_gpriv; |
953 | } | |
954 | ||
955 | /* | |
956 | * CAUTION | |
957 | * | |
958 | * There is no guarantee that it is possible to access usb module here. | |
959 | * Don't accesses to it. | |
960 | * The accesse will be enable after "usbhsg_start" | |
961 | */ | |
962 | ||
963 | /* | |
964 | * register itself | |
965 | */ | |
966 | usbhs_mod_register(priv, &gpriv->mod, USBHS_GADGET); | |
967 | ||
968 | /* init gpriv */ | |
969 | gpriv->mod.name = "gadget"; | |
970 | gpriv->mod.start = usbhsg_start; | |
971 | gpriv->mod.stop = usbhsg_stop; | |
972 | gpriv->uep = uep; | |
973 | gpriv->uep_size = pipe_size; | |
974 | usbhsg_status_init(gpriv); | |
975 | ||
976 | /* | |
977 | * init gadget | |
978 | */ | |
2f98382d KM |
979 | dev_set_name(&gpriv->gadget.dev, "gadget"); |
980 | gpriv->gadget.dev.parent = dev; | |
3b2a2e47 | 981 | gpriv->gadget.dev.release = usbhs_mod_gadget_release; |
2f98382d KM |
982 | gpriv->gadget.name = "renesas_usbhs_udc"; |
983 | gpriv->gadget.ops = &usbhsg_gadget_ops; | |
d327ab5b | 984 | gpriv->gadget.max_speed = USB_SPEED_HIGH; |
f8eff0a0 KM |
985 | ret = device_register(&gpriv->gadget.dev); |
986 | if (ret < 0) | |
987 | goto err_add_udc; | |
2f98382d KM |
988 | |
989 | INIT_LIST_HEAD(&gpriv->gadget.ep_list); | |
990 | ||
991 | /* | |
992 | * init usb_ep | |
993 | */ | |
994 | usbhsg_for_each_uep_with_dcp(uep, gpriv, i) { | |
995 | uep->gpriv = gpriv; | |
58482945 | 996 | uep->pipe = NULL; |
2f98382d KM |
997 | snprintf(uep->ep_name, EP_NAME_SIZE, "ep%d", i); |
998 | ||
999 | uep->ep.name = uep->ep_name; | |
1000 | uep->ep.ops = &usbhsg_ep_ops; | |
1001 | INIT_LIST_HEAD(&uep->ep.ep_list); | |
2f98382d KM |
1002 | |
1003 | /* init DCP */ | |
1004 | if (usbhsg_is_dcp(uep)) { | |
1005 | gpriv->gadget.ep0 = &uep->ep; | |
1006 | uep->ep.maxpacket = 64; | |
1007 | } | |
1008 | /* init normal pipe */ | |
1009 | else { | |
1010 | uep->ep.maxpacket = 512; | |
1011 | list_add_tail(&uep->ep.ep_list, &gpriv->gadget.ep_list); | |
1012 | } | |
1013 | } | |
1014 | ||
0f91349b SAS |
1015 | ret = usb_add_gadget_udc(dev, &gpriv->gadget); |
1016 | if (ret) | |
f8eff0a0 | 1017 | goto err_register; |
0f91349b SAS |
1018 | |
1019 | ||
2f98382d KM |
1020 | dev_info(dev, "gadget probed\n"); |
1021 | ||
1022 | return 0; | |
f8eff0a0 KM |
1023 | |
1024 | err_register: | |
1025 | device_unregister(&gpriv->gadget.dev); | |
0f91349b SAS |
1026 | err_add_udc: |
1027 | kfree(gpriv->uep); | |
2f98382d KM |
1028 | |
1029 | usbhs_mod_gadget_probe_err_gpriv: | |
1030 | kfree(gpriv); | |
1031 | ||
0f91349b | 1032 | return ret; |
2f98382d KM |
1033 | } |
1034 | ||
b7a8d17d | 1035 | void usbhs_mod_gadget_remove(struct usbhs_priv *priv) |
2f98382d KM |
1036 | { |
1037 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
1038 | ||
0f91349b | 1039 | usb_del_gadget_udc(&gpriv->gadget); |
3b872188 | 1040 | |
f8eff0a0 KM |
1041 | device_unregister(&gpriv->gadget.dev); |
1042 | ||
3af51ac9 | 1043 | kfree(gpriv->uep); |
2f98382d KM |
1044 | kfree(gpriv); |
1045 | } |