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