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