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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 | */ |
00f30d29 YS |
122 | static void __usbhsg_queue_pop(struct usbhsg_uep *uep, |
123 | struct usbhsg_request *ureq, | |
124 | int status) | |
2f98382d KM |
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); | |
00f30d29 | 129 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); |
2f98382d KM |
130 | |
131 | dev_dbg(dev, "pipe %d : queue pop\n", usbhs_pipe_number(pipe)); | |
132 | ||
2f98382d | 133 | ureq->req.status = status; |
00f30d29 | 134 | spin_unlock(usbhs_priv_to_lock(priv)); |
304f7e5e | 135 | usb_gadget_giveback_request(&uep->ep, &ureq->req); |
00f30d29 YS |
136 | spin_lock(usbhs_priv_to_lock(priv)); |
137 | } | |
138 | ||
139 | static void usbhsg_queue_pop(struct usbhsg_uep *uep, | |
140 | struct usbhsg_request *ureq, | |
141 | int status) | |
142 | { | |
143 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
144 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); | |
145 | unsigned long flags; | |
146 | ||
147 | usbhs_lock(priv, flags); | |
148 | __usbhsg_queue_pop(uep, ureq, status); | |
149 | usbhs_unlock(priv, flags); | |
2f98382d KM |
150 | } |
151 | ||
2cc97197 | 152 | static void usbhsg_queue_done(struct usbhs_priv *priv, struct usbhs_pkt *pkt) |
2f98382d | 153 | { |
4bd04811 KM |
154 | struct usbhs_pipe *pipe = pkt->pipe; |
155 | struct usbhsg_uep *uep = usbhsg_pipe_to_uep(pipe); | |
156 | struct usbhsg_request *ureq = usbhsg_pkt_to_ureq(pkt); | |
2f98382d | 157 | |
659d4954 | 158 | ureq->req.actual = pkt->actual; |
2f98382d | 159 | |
659d4954 | 160 | usbhsg_queue_pop(uep, ureq, 0); |
4bd04811 KM |
161 | } |
162 | ||
b331872b KM |
163 | static void usbhsg_queue_push(struct usbhsg_uep *uep, |
164 | struct usbhsg_request *ureq) | |
165 | { | |
166 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
167 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
168 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
169 | struct usbhs_pkt *pkt = usbhsg_ureq_to_pkt(ureq); | |
170 | struct usb_request *req = &ureq->req; | |
171 | ||
172 | req->actual = 0; | |
173 | req->status = -EINPROGRESS; | |
174 | usbhs_pkt_push(pipe, pkt, usbhsg_queue_done, | |
3edeee38 | 175 | req->buf, req->length, req->zero, -1); |
654c35ab | 176 | usbhs_pkt_start(pipe); |
b331872b KM |
177 | |
178 | dev_dbg(dev, "pipe %d : queue push (%d)\n", | |
179 | usbhs_pipe_number(pipe), | |
180 | req->length); | |
181 | } | |
182 | ||
233f519d KM |
183 | /* |
184 | * dma map/unmap | |
185 | */ | |
ade78f9f | 186 | static int usbhsg_dma_map_ctrl(struct usbhs_pkt *pkt, int map) |
e73a9891 KM |
187 | { |
188 | struct usbhsg_request *ureq = usbhsg_pkt_to_ureq(pkt); | |
189 | struct usb_request *req = &ureq->req; | |
e73a9891 KM |
190 | struct usbhs_pipe *pipe = pkt->pipe; |
191 | struct usbhsg_uep *uep = usbhsg_pipe_to_uep(pipe); | |
192 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
e73a9891 | 193 | enum dma_data_direction dir; |
ade78f9f | 194 | int ret = 0; |
e73a9891 | 195 | |
ade78f9f | 196 | dir = usbhs_pipe_is_dir_host(pipe); |
e73a9891 | 197 | |
ade78f9f FB |
198 | if (map) { |
199 | /* it can not use scatter/gather */ | |
200 | WARN_ON(req->num_sgs); | |
201 | ||
202 | ret = usb_gadget_map_request(&gpriv->gadget, req, dir); | |
203 | if (ret < 0) | |
204 | return ret; | |
205 | ||
206 | pkt->dma = req->dma; | |
207 | } else { | |
208 | usb_gadget_unmap_request(&gpriv->gadget, req, dir); | |
209 | } | |
210 | ||
211 | return ret; | |
e73a9891 KM |
212 | } |
213 | ||
2f98382d KM |
214 | /* |
215 | * USB_TYPE_STANDARD / clear feature functions | |
216 | */ | |
217 | static int usbhsg_recip_handler_std_control_done(struct usbhs_priv *priv, | |
218 | struct usbhsg_uep *uep, | |
219 | struct usb_ctrlrequest *ctrl) | |
220 | { | |
221 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
222 | struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); | |
223 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp); | |
224 | ||
225 | usbhs_dcp_control_transfer_done(pipe); | |
226 | ||
227 | return 0; | |
228 | } | |
229 | ||
230 | static int usbhsg_recip_handler_std_clear_endpoint(struct usbhs_priv *priv, | |
231 | struct usbhsg_uep *uep, | |
232 | struct usb_ctrlrequest *ctrl) | |
233 | { | |
234 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
235 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
236 | ||
237 | if (!usbhsg_status_has(gpriv, USBHSG_STATUS_WEDGE)) { | |
e8d548d5 | 238 | usbhs_pipe_disable(pipe); |
6e6db82b | 239 | usbhs_pipe_sequence_data0(pipe); |
e8d548d5 | 240 | usbhs_pipe_enable(pipe); |
2f98382d KM |
241 | } |
242 | ||
243 | usbhsg_recip_handler_std_control_done(priv, uep, ctrl); | |
244 | ||
25fa7079 KM |
245 | usbhs_pkt_start(pipe); |
246 | ||
2f98382d KM |
247 | return 0; |
248 | } | |
249 | ||
225da3e3 | 250 | static struct usbhsg_recip_handle req_clear_feature = { |
2f98382d KM |
251 | .name = "clear feature", |
252 | .device = usbhsg_recip_handler_std_control_done, | |
253 | .interface = usbhsg_recip_handler_std_control_done, | |
254 | .endpoint = usbhsg_recip_handler_std_clear_endpoint, | |
255 | }; | |
256 | ||
ced6e09e KM |
257 | /* |
258 | * USB_TYPE_STANDARD / set feature functions | |
259 | */ | |
dfbb7f4f KM |
260 | static int usbhsg_recip_handler_std_set_device(struct usbhs_priv *priv, |
261 | struct usbhsg_uep *uep, | |
262 | struct usb_ctrlrequest *ctrl) | |
263 | { | |
264 | switch (le16_to_cpu(ctrl->wValue)) { | |
265 | case USB_DEVICE_TEST_MODE: | |
266 | usbhsg_recip_handler_std_control_done(priv, uep, ctrl); | |
267 | udelay(100); | |
268 | usbhs_sys_set_test_mode(priv, le16_to_cpu(ctrl->wIndex >> 8)); | |
269 | break; | |
270 | default: | |
271 | usbhsg_recip_handler_std_control_done(priv, uep, ctrl); | |
272 | break; | |
273 | } | |
274 | ||
275 | return 0; | |
276 | } | |
277 | ||
ced6e09e KM |
278 | static int usbhsg_recip_handler_std_set_endpoint(struct usbhs_priv *priv, |
279 | struct usbhsg_uep *uep, | |
280 | struct usb_ctrlrequest *ctrl) | |
281 | { | |
282 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
283 | ||
284 | usbhs_pipe_stall(pipe); | |
285 | ||
286 | usbhsg_recip_handler_std_control_done(priv, uep, ctrl); | |
287 | ||
288 | return 0; | |
289 | } | |
290 | ||
225da3e3 | 291 | static struct usbhsg_recip_handle req_set_feature = { |
ced6e09e | 292 | .name = "set feature", |
dfbb7f4f | 293 | .device = usbhsg_recip_handler_std_set_device, |
ced6e09e KM |
294 | .interface = usbhsg_recip_handler_std_control_done, |
295 | .endpoint = usbhsg_recip_handler_std_set_endpoint, | |
296 | }; | |
297 | ||
17f7f769 KM |
298 | /* |
299 | * USB_TYPE_STANDARD / get status functions | |
300 | */ | |
301 | static void __usbhsg_recip_send_complete(struct usb_ep *ep, | |
302 | struct usb_request *req) | |
303 | { | |
304 | struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); | |
305 | ||
306 | /* free allocated recip-buffer/usb_request */ | |
307 | kfree(ureq->pkt.buf); | |
308 | usb_ep_free_request(ep, req); | |
309 | } | |
310 | ||
311 | static void __usbhsg_recip_send_status(struct usbhsg_gpriv *gpriv, | |
312 | unsigned short status) | |
313 | { | |
314 | struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); | |
315 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp); | |
316 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
317 | struct usb_request *req; | |
318 | unsigned short *buf; | |
319 | ||
320 | /* alloc new usb_request for recip */ | |
321 | req = usb_ep_alloc_request(&dcp->ep, GFP_ATOMIC); | |
322 | if (!req) { | |
323 | dev_err(dev, "recip request allocation fail\n"); | |
324 | return; | |
325 | } | |
326 | ||
327 | /* alloc recip data buffer */ | |
328 | buf = kmalloc(sizeof(*buf), GFP_ATOMIC); | |
329 | if (!buf) { | |
330 | usb_ep_free_request(&dcp->ep, req); | |
331 | dev_err(dev, "recip data allocation fail\n"); | |
332 | return; | |
333 | } | |
334 | ||
335 | /* recip data is status */ | |
336 | *buf = cpu_to_le16(status); | |
337 | ||
338 | /* allocated usb_request/buffer will be freed */ | |
339 | req->complete = __usbhsg_recip_send_complete; | |
340 | req->buf = buf; | |
341 | req->length = sizeof(*buf); | |
342 | req->zero = 0; | |
343 | ||
344 | /* push packet */ | |
345 | pipe->handler = &usbhs_fifo_pio_push_handler; | |
346 | usbhsg_queue_push(dcp, usbhsg_req_to_ureq(req)); | |
347 | } | |
348 | ||
349 | static int usbhsg_recip_handler_std_get_device(struct usbhs_priv *priv, | |
350 | struct usbhsg_uep *uep, | |
351 | struct usb_ctrlrequest *ctrl) | |
352 | { | |
353 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
cac402dd SY |
354 | unsigned short status = 0; |
355 | ||
356 | if (usbhsg_status_has(gpriv, USBHSG_STATUS_SELF_POWERED)) | |
357 | status = 1 << USB_DEVICE_SELF_POWERED; | |
17f7f769 KM |
358 | |
359 | __usbhsg_recip_send_status(gpriv, status); | |
360 | ||
361 | return 0; | |
362 | } | |
363 | ||
364 | static int usbhsg_recip_handler_std_get_interface(struct usbhs_priv *priv, | |
365 | struct usbhsg_uep *uep, | |
366 | struct usb_ctrlrequest *ctrl) | |
367 | { | |
368 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
369 | unsigned short status = 0; | |
370 | ||
371 | __usbhsg_recip_send_status(gpriv, status); | |
372 | ||
373 | return 0; | |
374 | } | |
375 | ||
376 | static int usbhsg_recip_handler_std_get_endpoint(struct usbhs_priv *priv, | |
377 | struct usbhsg_uep *uep, | |
378 | struct usb_ctrlrequest *ctrl) | |
379 | { | |
380 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
381 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
382 | unsigned short status = 0; | |
383 | ||
384 | if (usbhs_pipe_is_stall(pipe)) | |
385 | status = 1 << USB_ENDPOINT_HALT; | |
386 | ||
387 | __usbhsg_recip_send_status(gpriv, status); | |
388 | ||
389 | return 0; | |
390 | } | |
391 | ||
225da3e3 | 392 | static struct usbhsg_recip_handle req_get_status = { |
17f7f769 KM |
393 | .name = "get status", |
394 | .device = usbhsg_recip_handler_std_get_device, | |
395 | .interface = usbhsg_recip_handler_std_get_interface, | |
396 | .endpoint = usbhsg_recip_handler_std_get_endpoint, | |
397 | }; | |
398 | ||
2f98382d KM |
399 | /* |
400 | * USB_TYPE handler | |
401 | */ | |
402 | static int usbhsg_recip_run_handle(struct usbhs_priv *priv, | |
403 | struct usbhsg_recip_handle *handler, | |
404 | struct usb_ctrlrequest *ctrl) | |
405 | { | |
406 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
407 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
408 | struct usbhsg_uep *uep; | |
0432eed0 | 409 | struct usbhs_pipe *pipe; |
2f98382d KM |
410 | int recip = ctrl->bRequestType & USB_RECIP_MASK; |
411 | int nth = le16_to_cpu(ctrl->wIndex) & USB_ENDPOINT_NUMBER_MASK; | |
7983bc74 | 412 | int ret = 0; |
2f98382d KM |
413 | int (*func)(struct usbhs_priv *priv, struct usbhsg_uep *uep, |
414 | struct usb_ctrlrequest *ctrl); | |
415 | char *msg; | |
416 | ||
417 | uep = usbhsg_gpriv_to_nth_uep(gpriv, nth); | |
0432eed0 KM |
418 | pipe = usbhsg_uep_to_pipe(uep); |
419 | if (!pipe) { | |
9a28b7bd | 420 | dev_err(dev, "wrong recip request\n"); |
25fa7079 | 421 | return -EINVAL; |
9a28b7bd | 422 | } |
2f98382d KM |
423 | |
424 | switch (recip) { | |
425 | case USB_RECIP_DEVICE: | |
426 | msg = "DEVICE"; | |
427 | func = handler->device; | |
428 | break; | |
429 | case USB_RECIP_INTERFACE: | |
430 | msg = "INTERFACE"; | |
431 | func = handler->interface; | |
432 | break; | |
433 | case USB_RECIP_ENDPOINT: | |
434 | msg = "ENDPOINT"; | |
435 | func = handler->endpoint; | |
436 | break; | |
437 | default: | |
438 | dev_warn(dev, "unsupported RECIP(%d)\n", recip); | |
439 | func = NULL; | |
440 | ret = -EINVAL; | |
441 | } | |
442 | ||
443 | if (func) { | |
444 | dev_dbg(dev, "%s (pipe %d :%s)\n", handler->name, nth, msg); | |
445 | ret = func(priv, uep, ctrl); | |
446 | } | |
447 | ||
448 | return ret; | |
449 | } | |
450 | ||
451 | /* | |
452 | * irq functions | |
453 | * | |
454 | * it will be called from usbhs_interrupt | |
455 | */ | |
456 | static int usbhsg_irq_dev_state(struct usbhs_priv *priv, | |
457 | struct usbhs_irq_state *irq_state) | |
458 | { | |
459 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
460 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
461 | ||
75587f52 | 462 | gpriv->gadget.speed = usbhs_bus_get_speed(priv); |
2f98382d KM |
463 | |
464 | dev_dbg(dev, "state = %x : speed : %d\n", | |
465 | usbhs_status_get_device_state(irq_state), | |
466 | gpriv->gadget.speed); | |
467 | ||
468 | return 0; | |
469 | } | |
470 | ||
471 | static int usbhsg_irq_ctrl_stage(struct usbhs_priv *priv, | |
472 | struct usbhs_irq_state *irq_state) | |
473 | { | |
474 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
475 | struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); | |
476 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp); | |
477 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); | |
478 | struct usb_ctrlrequest ctrl; | |
479 | struct usbhsg_recip_handle *recip_handler = NULL; | |
480 | int stage = usbhs_status_get_ctrl_stage(irq_state); | |
481 | int ret = 0; | |
482 | ||
483 | dev_dbg(dev, "stage = %d\n", stage); | |
484 | ||
485 | /* | |
486 | * see Manual | |
487 | * | |
488 | * "Operation" | |
489 | * - "Interrupt Function" | |
490 | * - "Control Transfer Stage Transition Interrupt" | |
491 | * - Fig. "Control Transfer Stage Transitions" | |
492 | */ | |
493 | ||
494 | switch (stage) { | |
495 | case READ_DATA_STAGE: | |
0c6ef985 | 496 | pipe->handler = &usbhs_fifo_pio_push_handler; |
2f98382d KM |
497 | break; |
498 | case WRITE_DATA_STAGE: | |
0c6ef985 | 499 | pipe->handler = &usbhs_fifo_pio_pop_handler; |
2f98382d KM |
500 | break; |
501 | case NODATA_STATUS_STAGE: | |
0c6ef985 | 502 | pipe->handler = &usbhs_ctrl_stage_end_handler; |
2f98382d | 503 | break; |
4ef35b10 YS |
504 | case READ_STATUS_STAGE: |
505 | case WRITE_STATUS_STAGE: | |
506 | usbhs_dcp_control_transfer_done(pipe); | |
2f98382d KM |
507 | default: |
508 | return ret; | |
509 | } | |
510 | ||
511 | /* | |
512 | * get usb request | |
513 | */ | |
514 | usbhs_usbreq_get_val(priv, &ctrl); | |
515 | ||
516 | switch (ctrl.bRequestType & USB_TYPE_MASK) { | |
517 | case USB_TYPE_STANDARD: | |
518 | switch (ctrl.bRequest) { | |
519 | case USB_REQ_CLEAR_FEATURE: | |
520 | recip_handler = &req_clear_feature; | |
521 | break; | |
ced6e09e KM |
522 | case USB_REQ_SET_FEATURE: |
523 | recip_handler = &req_set_feature; | |
524 | break; | |
17f7f769 KM |
525 | case USB_REQ_GET_STATUS: |
526 | recip_handler = &req_get_status; | |
527 | break; | |
2f98382d KM |
528 | } |
529 | } | |
530 | ||
531 | /* | |
532 | * setup stage / run recip | |
533 | */ | |
534 | if (recip_handler) | |
535 | ret = usbhsg_recip_run_handle(priv, recip_handler, &ctrl); | |
536 | else | |
537 | ret = gpriv->driver->setup(&gpriv->gadget, &ctrl); | |
538 | ||
539 | if (ret < 0) | |
e8d548d5 | 540 | usbhs_pipe_stall(pipe); |
2f98382d KM |
541 | |
542 | return ret; | |
543 | } | |
544 | ||
2f98382d KM |
545 | /* |
546 | * | |
547 | * usb_dcp_ops | |
548 | * | |
549 | */ | |
2f98382d KM |
550 | static int usbhsg_pipe_disable(struct usbhsg_uep *uep) |
551 | { | |
552 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
8a2c225d | 553 | struct usbhs_pkt *pkt; |
2f98382d | 554 | |
2f98382d | 555 | while (1) { |
97664a20 | 556 | pkt = usbhs_pkt_pop(pipe, NULL); |
8a2c225d | 557 | if (!pkt) |
2f98382d | 558 | break; |
91b158f4 KM |
559 | |
560 | usbhsg_queue_pop(uep, usbhsg_pkt_to_ureq(pkt), -ECONNRESET); | |
2f98382d KM |
561 | } |
562 | ||
91b158f4 KM |
563 | usbhs_pipe_disable(pipe); |
564 | ||
2f98382d KM |
565 | return 0; |
566 | } | |
567 | ||
568 | /* | |
569 | * | |
570 | * usb_ep_ops | |
571 | * | |
572 | */ | |
573 | static int usbhsg_ep_enable(struct usb_ep *ep, | |
574 | const struct usb_endpoint_descriptor *desc) | |
575 | { | |
576 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
577 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
578 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); | |
579 | struct usbhs_pipe *pipe; | |
2f98382d KM |
580 | int ret = -EIO; |
581 | ||
409ba9e7 KM |
582 | /* |
583 | * if it already have pipe, | |
584 | * nothing to do | |
585 | */ | |
08e6c611 KM |
586 | if (uep->pipe) { |
587 | usbhs_pipe_clear(uep->pipe); | |
6e6db82b | 588 | usbhs_pipe_sequence_data0(uep->pipe); |
409ba9e7 | 589 | return 0; |
08e6c611 | 590 | } |
409ba9e7 | 591 | |
f5aa889f KM |
592 | pipe = usbhs_pipe_malloc(priv, |
593 | usb_endpoint_type(desc), | |
594 | usb_endpoint_dir_in(desc)); | |
2f98382d KM |
595 | if (pipe) { |
596 | uep->pipe = pipe; | |
597 | pipe->mod_private = uep; | |
2f98382d | 598 | |
f5aa889f | 599 | /* set epnum / maxp */ |
bc6fbf59 | 600 | usbhs_pipe_config_update(pipe, 0, |
f5aa889f KM |
601 | usb_endpoint_num(desc), |
602 | usb_endpoint_maxp(desc)); | |
603 | ||
233f519d KM |
604 | /* |
605 | * usbhs_fifo_dma_push/pop_handler try to | |
606 | * use dmaengine if possible. | |
607 | * It will use pio handler if impossible. | |
608 | */ | |
2f98382d | 609 | if (usb_endpoint_dir_in(desc)) |
0c6ef985 | 610 | pipe->handler = &usbhs_fifo_dma_push_handler; |
2f98382d | 611 | else |
0c6ef985 | 612 | pipe->handler = &usbhs_fifo_dma_pop_handler; |
2f98382d KM |
613 | |
614 | ret = 0; | |
615 | } | |
cb96632c | 616 | |
2f98382d KM |
617 | return ret; |
618 | } | |
619 | ||
620 | static int usbhsg_ep_disable(struct usb_ep *ep) | |
621 | { | |
622 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
dfb87b8b | 623 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); |
2f98382d | 624 | |
11432050 KM |
625 | if (!pipe) |
626 | return -EINVAL; | |
627 | ||
d9fa298f | 628 | usbhsg_pipe_disable(uep); |
dfb87b8b | 629 | usbhs_pipe_free(pipe); |
d9fa298f KM |
630 | |
631 | uep->pipe->mod_private = NULL; | |
632 | uep->pipe = NULL; | |
633 | ||
634 | return 0; | |
2f98382d KM |
635 | } |
636 | ||
637 | static struct usb_request *usbhsg_ep_alloc_request(struct usb_ep *ep, | |
638 | gfp_t gfp_flags) | |
639 | { | |
640 | struct usbhsg_request *ureq; | |
641 | ||
642 | ureq = kzalloc(sizeof *ureq, gfp_flags); | |
643 | if (!ureq) | |
644 | return NULL; | |
645 | ||
6acb95d4 KM |
646 | usbhs_pkt_init(usbhsg_ureq_to_pkt(ureq)); |
647 | ||
2f98382d KM |
648 | return &ureq->req; |
649 | } | |
650 | ||
651 | static void usbhsg_ep_free_request(struct usb_ep *ep, | |
652 | struct usb_request *req) | |
653 | { | |
654 | struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); | |
655 | ||
6acb95d4 | 656 | WARN_ON(!list_empty(&ureq->pkt.node)); |
2f98382d KM |
657 | kfree(ureq); |
658 | } | |
659 | ||
660 | static int usbhsg_ep_queue(struct usb_ep *ep, struct usb_request *req, | |
661 | gfp_t gfp_flags) | |
662 | { | |
663 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
664 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
665 | struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); | |
666 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
2f98382d KM |
667 | |
668 | /* param check */ | |
669 | if (usbhsg_is_not_connected(gpriv) || | |
670 | unlikely(!gpriv->driver) || | |
671 | unlikely(!pipe)) | |
97664a20 | 672 | return -ESHUTDOWN; |
2f98382d | 673 | |
97664a20 | 674 | usbhsg_queue_push(uep, ureq); |
2f98382d | 675 | |
97664a20 | 676 | return 0; |
2f98382d KM |
677 | } |
678 | ||
679 | static int usbhsg_ep_dequeue(struct usb_ep *ep, struct usb_request *req) | |
680 | { | |
681 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
682 | struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); | |
97664a20 | 683 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); |
2f98382d | 684 | |
97664a20 | 685 | usbhs_pkt_pop(pipe, usbhsg_ureq_to_pkt(ureq)); |
2f98382d KM |
686 | usbhsg_queue_pop(uep, ureq, -ECONNRESET); |
687 | ||
2f98382d KM |
688 | return 0; |
689 | } | |
690 | ||
691 | static int __usbhsg_ep_set_halt_wedge(struct usb_ep *ep, int halt, int wedge) | |
692 | { | |
693 | struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); | |
694 | struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); | |
695 | struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); | |
97664a20 | 696 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); |
2f98382d | 697 | struct device *dev = usbhsg_gpriv_to_dev(gpriv); |
2f98382d | 698 | unsigned long flags; |
2f98382d | 699 | |
97664a20 | 700 | usbhsg_pipe_disable(uep); |
2f98382d | 701 | |
97664a20 KM |
702 | dev_dbg(dev, "set halt %d (pipe %d)\n", |
703 | halt, usbhs_pipe_number(pipe)); | |
2f98382d | 704 | |
97664a20 KM |
705 | /******************** spin lock ********************/ |
706 | usbhs_lock(priv, flags); | |
2f98382d | 707 | |
97664a20 KM |
708 | if (halt) |
709 | usbhs_pipe_stall(pipe); | |
710 | else | |
711 | usbhs_pipe_disable(pipe); | |
2f98382d | 712 | |
97664a20 KM |
713 | if (halt && wedge) |
714 | usbhsg_status_set(gpriv, USBHSG_STATUS_WEDGE); | |
715 | else | |
716 | usbhsg_status_clr(gpriv, USBHSG_STATUS_WEDGE); | |
2f98382d | 717 | |
97664a20 | 718 | usbhs_unlock(priv, flags); |
2f98382d KM |
719 | /******************** spin unlock ******************/ |
720 | ||
97664a20 | 721 | return 0; |
2f98382d KM |
722 | } |
723 | ||
724 | static int usbhsg_ep_set_halt(struct usb_ep *ep, int value) | |
725 | { | |
726 | return __usbhsg_ep_set_halt_wedge(ep, value, 0); | |
727 | } | |
728 | ||
729 | static int usbhsg_ep_set_wedge(struct usb_ep *ep) | |
730 | { | |
731 | return __usbhsg_ep_set_halt_wedge(ep, 1, 1); | |
732 | } | |
733 | ||
734 | static struct usb_ep_ops usbhsg_ep_ops = { | |
735 | .enable = usbhsg_ep_enable, | |
736 | .disable = usbhsg_ep_disable, | |
737 | ||
738 | .alloc_request = usbhsg_ep_alloc_request, | |
739 | .free_request = usbhsg_ep_free_request, | |
740 | ||
741 | .queue = usbhsg_ep_queue, | |
742 | .dequeue = usbhsg_ep_dequeue, | |
743 | ||
744 | .set_halt = usbhsg_ep_set_halt, | |
745 | .set_wedge = usbhsg_ep_set_wedge, | |
746 | }; | |
747 | ||
04a5def3 TK |
748 | /* |
749 | * pullup control | |
750 | */ | |
751 | static int usbhsg_can_pullup(struct usbhs_priv *priv) | |
752 | { | |
753 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
754 | ||
755 | return gpriv->driver && | |
756 | usbhsg_status_has(gpriv, USBHSG_STATUS_SOFT_CONNECT); | |
757 | } | |
758 | ||
759 | static void usbhsg_update_pullup(struct usbhs_priv *priv) | |
760 | { | |
761 | if (usbhsg_can_pullup(priv)) | |
762 | usbhs_sys_function_pullup(priv, 1); | |
763 | else | |
764 | usbhs_sys_function_pullup(priv, 0); | |
765 | } | |
766 | ||
2f98382d KM |
767 | /* |
768 | * usb module start/end | |
769 | */ | |
770 | static int usbhsg_try_start(struct usbhs_priv *priv, u32 status) | |
771 | { | |
772 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
773 | struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); | |
774 | struct usbhs_mod *mod = usbhs_mod_get_current(priv); | |
775 | struct device *dev = usbhs_priv_to_dev(priv); | |
2f98382d | 776 | unsigned long flags; |
97664a20 | 777 | int ret = 0; |
2f98382d KM |
778 | |
779 | /******************** spin lock ********************/ | |
97664a20 | 780 | usbhs_lock(priv, flags); |
2f98382d | 781 | |
2f98382d KM |
782 | usbhsg_status_set(gpriv, status); |
783 | if (!(usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) && | |
784 | usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD))) | |
97664a20 KM |
785 | ret = -1; /* not ready */ |
786 | ||
787 | usbhs_unlock(priv, flags); | |
788 | /******************** spin unlock ********************/ | |
789 | ||
790 | if (ret < 0) | |
791 | return 0; /* not ready is not error */ | |
2f98382d | 792 | |
97664a20 KM |
793 | /* |
794 | * enable interrupt and systems if ready | |
795 | */ | |
2f98382d KM |
796 | dev_dbg(dev, "start gadget\n"); |
797 | ||
798 | /* | |
799 | * pipe initialize and enable DCP | |
800 | */ | |
cdeb7943 | 801 | usbhs_fifo_init(priv); |
4bd04811 | 802 | usbhs_pipe_init(priv, |
e73a9891 | 803 | usbhsg_dma_map_ctrl); |
97664a20 | 804 | |
d9fa298f | 805 | /* dcp init instead of usbhsg_ep_enable() */ |
97664a20 KM |
806 | dcp->pipe = usbhs_dcp_malloc(priv); |
807 | dcp->pipe->mod_private = dcp; | |
bc6fbf59 | 808 | usbhs_pipe_config_update(dcp->pipe, 0, 0, 64); |
2f98382d KM |
809 | |
810 | /* | |
811 | * system config enble | |
812 | * - HI speed | |
813 | * - function | |
814 | * - usb module | |
815 | */ | |
2f98382d | 816 | usbhs_sys_function_ctrl(priv, 1); |
04a5def3 | 817 | usbhsg_update_pullup(priv); |
2f98382d KM |
818 | |
819 | /* | |
820 | * enable irq callback | |
821 | */ | |
822 | mod->irq_dev_state = usbhsg_irq_dev_state; | |
823 | mod->irq_ctrl_stage = usbhsg_irq_ctrl_stage; | |
2f98382d KM |
824 | usbhs_irq_callback_update(priv, mod); |
825 | ||
2f98382d KM |
826 | return 0; |
827 | } | |
828 | ||
829 | static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status) | |
830 | { | |
831 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
832 | struct usbhs_mod *mod = usbhs_mod_get_current(priv); | |
833 | struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); | |
834 | struct device *dev = usbhs_priv_to_dev(priv); | |
2f98382d | 835 | unsigned long flags; |
97664a20 | 836 | int ret = 0; |
2f98382d KM |
837 | |
838 | /******************** spin lock ********************/ | |
97664a20 | 839 | usbhs_lock(priv, flags); |
2f98382d | 840 | |
2f98382d KM |
841 | usbhsg_status_clr(gpriv, status); |
842 | if (!usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) && | |
843 | !usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD)) | |
97664a20 KM |
844 | ret = -1; /* already done */ |
845 | ||
846 | usbhs_unlock(priv, flags); | |
847 | /******************** spin unlock ********************/ | |
848 | ||
849 | if (ret < 0) | |
850 | return 0; /* already done is not error */ | |
2f98382d | 851 | |
97664a20 KM |
852 | /* |
853 | * disable interrupt and systems if 1st try | |
854 | */ | |
dad67397 KM |
855 | usbhs_fifo_quit(priv); |
856 | ||
2f98382d KM |
857 | /* disable all irq */ |
858 | mod->irq_dev_state = NULL; | |
859 | mod->irq_ctrl_stage = NULL; | |
2f98382d KM |
860 | usbhs_irq_callback_update(priv, mod); |
861 | ||
2f98382d KM |
862 | gpriv->gadget.speed = USB_SPEED_UNKNOWN; |
863 | ||
864 | /* disable sys */ | |
dfbb7f4f | 865 | usbhs_sys_set_test_mode(priv, 0); |
2f98382d | 866 | usbhs_sys_function_ctrl(priv, 0); |
2f98382d | 867 | |
d9fa298f | 868 | usbhsg_ep_disable(&dcp->ep); |
2f98382d | 869 | |
2f98382d KM |
870 | dev_dbg(dev, "stop gadget\n"); |
871 | ||
2f98382d KM |
872 | return 0; |
873 | } | |
874 | ||
875 | /* | |
876 | * | |
877 | * linux usb function | |
878 | * | |
879 | */ | |
af1d7056 FB |
880 | static int usbhsg_gadget_start(struct usb_gadget *gadget, |
881 | struct usb_gadget_driver *driver) | |
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 | |
af1d7056 | 886 | if (!driver || |
2f98382d | 887 | !driver->setup || |
7177aed4 | 888 | driver->max_speed < USB_SPEED_FULL) |
2f98382d | 889 | return -EINVAL; |
3b872188 | 890 | |
2f98382d KM |
891 | /* first hook up the driver ... */ |
892 | gpriv->driver = driver; | |
2f98382d | 893 | |
2f98382d | 894 | return usbhsg_try_start(priv, USBHSG_STATUS_REGISTERD); |
2f98382d | 895 | } |
2f98382d | 896 | |
22835b80 | 897 | static int usbhsg_gadget_stop(struct usb_gadget *gadget) |
2f98382d | 898 | { |
af1d7056 | 899 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); |
f8eff0a0 | 900 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); |
2f98382d | 901 | |
2f98382d | 902 | usbhsg_try_stop(priv, USBHSG_STATUS_REGISTERD); |
2f98382d KM |
903 | gpriv->driver = NULL; |
904 | ||
2f98382d KM |
905 | return 0; |
906 | } | |
2f98382d KM |
907 | |
908 | /* | |
909 | * usb gadget ops | |
910 | */ | |
911 | static int usbhsg_get_frame(struct usb_gadget *gadget) | |
912 | { | |
913 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); | |
914 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); | |
915 | ||
916 | return usbhs_frame_get_num(priv); | |
917 | } | |
918 | ||
4cd2f599 | 919 | static int usbhsg_pullup(struct usb_gadget *gadget, int is_on) |
920 | { | |
921 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); | |
922 | struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); | |
04a5def3 | 923 | unsigned long flags; |
4cd2f599 | 924 | |
04a5def3 TK |
925 | usbhs_lock(priv, flags); |
926 | if (is_on) | |
927 | usbhsg_status_set(gpriv, USBHSG_STATUS_SOFT_CONNECT); | |
928 | else | |
929 | usbhsg_status_clr(gpriv, USBHSG_STATUS_SOFT_CONNECT); | |
930 | usbhsg_update_pullup(priv); | |
931 | usbhs_unlock(priv, flags); | |
4cd2f599 | 932 | |
933 | return 0; | |
934 | } | |
935 | ||
cac402dd SY |
936 | static int usbhsg_set_selfpowered(struct usb_gadget *gadget, int is_self) |
937 | { | |
938 | struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); | |
939 | ||
940 | if (is_self) | |
941 | usbhsg_status_set(gpriv, USBHSG_STATUS_SELF_POWERED); | |
942 | else | |
943 | usbhsg_status_clr(gpriv, USBHSG_STATUS_SELF_POWERED); | |
944 | ||
a17fd412 PC |
945 | gadget->is_selfpowered = (is_self != 0); |
946 | ||
cac402dd SY |
947 | return 0; |
948 | } | |
949 | ||
eeef4587 | 950 | static const struct usb_gadget_ops usbhsg_gadget_ops = { |
2f98382d | 951 | .get_frame = usbhsg_get_frame, |
cac402dd | 952 | .set_selfpowered = usbhsg_set_selfpowered, |
af1d7056 FB |
953 | .udc_start = usbhsg_gadget_start, |
954 | .udc_stop = usbhsg_gadget_stop, | |
4cd2f599 | 955 | .pullup = usbhsg_pullup, |
2f98382d KM |
956 | }; |
957 | ||
958 | static int usbhsg_start(struct usbhs_priv *priv) | |
959 | { | |
960 | return usbhsg_try_start(priv, USBHSG_STATUS_STARTED); | |
961 | } | |
962 | ||
963 | static int usbhsg_stop(struct usbhs_priv *priv) | |
964 | { | |
8885a897 KM |
965 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); |
966 | ||
967 | /* cable disconnect */ | |
968 | if (gpriv->driver && | |
969 | gpriv->driver->disconnect) | |
970 | gpriv->driver->disconnect(&gpriv->gadget); | |
971 | ||
2f98382d KM |
972 | return usbhsg_try_stop(priv, USBHSG_STATUS_STARTED); |
973 | } | |
974 | ||
b7a8d17d | 975 | int usbhs_mod_gadget_probe(struct usbhs_priv *priv) |
2f98382d KM |
976 | { |
977 | struct usbhsg_gpriv *gpriv; | |
978 | struct usbhsg_uep *uep; | |
979 | struct device *dev = usbhs_priv_to_dev(priv); | |
980 | int pipe_size = usbhs_get_dparam(priv, pipe_size); | |
981 | int i; | |
0f91349b | 982 | int ret; |
2f98382d KM |
983 | |
984 | gpriv = kzalloc(sizeof(struct usbhsg_gpriv), GFP_KERNEL); | |
985 | if (!gpriv) { | |
986 | dev_err(dev, "Could not allocate gadget priv\n"); | |
987 | return -ENOMEM; | |
988 | } | |
989 | ||
990 | uep = kzalloc(sizeof(struct usbhsg_uep) * pipe_size, GFP_KERNEL); | |
991 | if (!uep) { | |
992 | dev_err(dev, "Could not allocate ep\n"); | |
0f91349b | 993 | ret = -ENOMEM; |
2f98382d KM |
994 | goto usbhs_mod_gadget_probe_err_gpriv; |
995 | } | |
996 | ||
997 | /* | |
998 | * CAUTION | |
999 | * | |
1000 | * There is no guarantee that it is possible to access usb module here. | |
1001 | * Don't accesses to it. | |
1002 | * The accesse will be enable after "usbhsg_start" | |
1003 | */ | |
1004 | ||
1005 | /* | |
1006 | * register itself | |
1007 | */ | |
1008 | usbhs_mod_register(priv, &gpriv->mod, USBHS_GADGET); | |
1009 | ||
1010 | /* init gpriv */ | |
1011 | gpriv->mod.name = "gadget"; | |
1012 | gpriv->mod.start = usbhsg_start; | |
1013 | gpriv->mod.stop = usbhsg_stop; | |
1014 | gpriv->uep = uep; | |
1015 | gpriv->uep_size = pipe_size; | |
1016 | usbhsg_status_init(gpriv); | |
1017 | ||
1018 | /* | |
1019 | * init gadget | |
1020 | */ | |
2f98382d KM |
1021 | gpriv->gadget.dev.parent = dev; |
1022 | gpriv->gadget.name = "renesas_usbhs_udc"; | |
1023 | gpriv->gadget.ops = &usbhsg_gadget_ops; | |
d327ab5b | 1024 | gpriv->gadget.max_speed = USB_SPEED_HIGH; |
2f98382d KM |
1025 | |
1026 | INIT_LIST_HEAD(&gpriv->gadget.ep_list); | |
1027 | ||
1028 | /* | |
1029 | * init usb_ep | |
1030 | */ | |
1031 | usbhsg_for_each_uep_with_dcp(uep, gpriv, i) { | |
1032 | uep->gpriv = gpriv; | |
58482945 | 1033 | uep->pipe = NULL; |
2f98382d KM |
1034 | snprintf(uep->ep_name, EP_NAME_SIZE, "ep%d", i); |
1035 | ||
1036 | uep->ep.name = uep->ep_name; | |
1037 | uep->ep.ops = &usbhsg_ep_ops; | |
1038 | INIT_LIST_HEAD(&uep->ep.ep_list); | |
2f98382d KM |
1039 | |
1040 | /* init DCP */ | |
1041 | if (usbhsg_is_dcp(uep)) { | |
1042 | gpriv->gadget.ep0 = &uep->ep; | |
e117e742 | 1043 | usb_ep_set_maxpacket_limit(&uep->ep, 64); |
2f98382d KM |
1044 | } |
1045 | /* init normal pipe */ | |
1046 | else { | |
e117e742 | 1047 | usb_ep_set_maxpacket_limit(&uep->ep, 512); |
2f98382d KM |
1048 | list_add_tail(&uep->ep.ep_list, &gpriv->gadget.ep_list); |
1049 | } | |
1050 | } | |
1051 | ||
0f91349b SAS |
1052 | ret = usb_add_gadget_udc(dev, &gpriv->gadget); |
1053 | if (ret) | |
0972ef71 | 1054 | goto err_add_udc; |
0f91349b SAS |
1055 | |
1056 | ||
2f98382d KM |
1057 | dev_info(dev, "gadget probed\n"); |
1058 | ||
1059 | return 0; | |
f8eff0a0 | 1060 | |
0f91349b SAS |
1061 | err_add_udc: |
1062 | kfree(gpriv->uep); | |
2f98382d KM |
1063 | |
1064 | usbhs_mod_gadget_probe_err_gpriv: | |
1065 | kfree(gpriv); | |
1066 | ||
0f91349b | 1067 | return ret; |
2f98382d KM |
1068 | } |
1069 | ||
b7a8d17d | 1070 | void usbhs_mod_gadget_remove(struct usbhs_priv *priv) |
2f98382d KM |
1071 | { |
1072 | struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); | |
1073 | ||
0f91349b | 1074 | usb_del_gadget_udc(&gpriv->gadget); |
3b872188 | 1075 | |
3af51ac9 | 1076 | kfree(gpriv->uep); |
2f98382d KM |
1077 | kfree(gpriv); |
1078 | } |