Commit | Line | Data |
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034d7c13 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 | */ | |
17 | #include <linux/io.h> | |
18 | #include <linux/list.h> | |
19 | #include <linux/module.h> | |
20 | #include <linux/platform_device.h> | |
21 | #include <linux/slab.h> | |
22 | #include <linux/usb.h> | |
23 | #include <linux/usb/hcd.h> | |
24 | #include "common.h" | |
25 | ||
26 | /* | |
27 | *** HARDWARE LIMITATION *** | |
28 | * | |
29 | * 1) renesas_usbhs has a limited number of controllable devices. | |
30 | * it can control only 9 devices in generally. | |
31 | * see DEVADDn / DCPMAXP / PIPEMAXP. | |
32 | * | |
33 | * 2) renesas_usbhs pipe number is limited. | |
34 | * the pipe will be re-used for each devices. | |
35 | * so, software should control DATA0/1 sequence of each devices. | |
36 | */ | |
37 | ||
38 | ||
39 | /* | |
40 | * image of mod_host | |
41 | * | |
42 | * +--------+ | |
43 | * | udev 0 | --> it is used when set address | |
44 | * +--------+ | |
45 | * | |
46 | * +--------+ pipes are reused for each uep. | |
47 | * | udev 1 |-+- [uep 0 (dcp) ] --+ pipe will be switched when | |
e5679d07 | 48 | * +--------+ | | other device requested |
034d7c13 KM |
49 | * +- [uep 1 (bulk)] --|---+ +--------------+ |
50 | * | +--------------> | pipe0 (dcp) | | |
e5679d07 KM |
51 | * +- [uep 2 (bulk)] -@ | +--------------+ |
52 | * | | pipe1 (isoc) | | |
53 | * +--------+ | +--------------+ | |
54 | * | udev 2 |-+- [uep 0 (dcp) ] -@ +----------> | pipe2 (bulk) | | |
55 | * +--------+ | +--------------+ | |
56 | * +- [uep 1 (int) ] ----+ +------> | pipe3 (bulk) | | |
57 | * | | +--------------+ | |
58 | * +--------+ +-----|------> | pipe4 (int) | | |
59 | * | udev 3 |-+- [uep 0 (dcp) ] -@ | +--------------+ | |
60 | * +--------+ | | | .... | | |
61 | * +- [uep 1 (bulk)] -@ | | .... | | |
034d7c13 KM |
62 | * | | |
63 | * +- [uep 2 (bulk)]-----------+ | |
e5679d07 KM |
64 | * |
65 | * @ : uep requested free pipe, but all have been used. | |
66 | * now it is waiting for free pipe | |
034d7c13 KM |
67 | */ |
68 | ||
69 | ||
70 | /* | |
71 | * struct | |
72 | */ | |
034d7c13 KM |
73 | struct usbhsh_request { |
74 | struct urb *urb; | |
75 | struct usbhs_pkt pkt; | |
034d7c13 KM |
76 | }; |
77 | ||
78 | struct usbhsh_device { | |
79 | struct usb_device *usbv; | |
80 | struct list_head ep_list_head; /* list of usbhsh_ep */ | |
81 | }; | |
82 | ||
83 | struct usbhsh_ep { | |
e5679d07 | 84 | struct usbhs_pipe *pipe; /* attached pipe */ |
034d7c13 | 85 | struct usbhsh_device *udev; /* attached udev */ |
e4c57ded | 86 | struct usb_host_endpoint *ep; |
034d7c13 | 87 | struct list_head ep_list; /* list to usbhsh_device */ |
7b332e5f | 88 | unsigned int counter; /* pipe attach counter */ |
034d7c13 KM |
89 | }; |
90 | ||
91 | #define USBHSH_DEVICE_MAX 10 /* see DEVADDn / DCPMAXP / PIPEMAXP */ | |
92 | #define USBHSH_PORT_MAX 7 /* see DEVADDn :: HUBPORT */ | |
93 | struct usbhsh_hpriv { | |
94 | struct usbhs_mod mod; | |
95 | struct usbhs_pipe *dcp; | |
96 | ||
97 | struct usbhsh_device udev[USBHSH_DEVICE_MAX]; | |
98 | ||
034d7c13 KM |
99 | u32 port_stat; /* USB_PORT_STAT_xxx */ |
100 | ||
7fccd480 | 101 | struct completion setup_ack_done; |
034d7c13 KM |
102 | }; |
103 | ||
104 | ||
105 | static const char usbhsh_hcd_name[] = "renesas_usbhs host"; | |
106 | ||
107 | /* | |
108 | * macro | |
109 | */ | |
110 | #define usbhsh_priv_to_hpriv(priv) \ | |
111 | container_of(usbhs_mod_get(priv, USBHS_HOST), struct usbhsh_hpriv, mod) | |
112 | ||
034d7c13 | 113 | #define __usbhsh_for_each_udev(start, pos, h, i) \ |
925403f4 KM |
114 | for ((i) = start; \ |
115 | ((i) < USBHSH_DEVICE_MAX) && ((pos) = (h)->udev + (i)); \ | |
116 | (i)++) | |
034d7c13 KM |
117 | |
118 | #define usbhsh_for_each_udev(pos, hpriv, i) \ | |
119 | __usbhsh_for_each_udev(1, pos, hpriv, i) | |
120 | ||
121 | #define usbhsh_for_each_udev_with_dev0(pos, hpriv, i) \ | |
122 | __usbhsh_for_each_udev(0, pos, hpriv, i) | |
123 | ||
124 | #define usbhsh_hcd_to_hpriv(h) (struct usbhsh_hpriv *)((h)->hcd_priv) | |
125 | #define usbhsh_hcd_to_dev(h) ((h)->self.controller) | |
126 | ||
127 | #define usbhsh_hpriv_to_priv(h) ((h)->mod.priv) | |
128 | #define usbhsh_hpriv_to_dcp(h) ((h)->dcp) | |
129 | #define usbhsh_hpriv_to_hcd(h) \ | |
130 | container_of((void *)h, struct usb_hcd, hcd_priv) | |
131 | ||
132 | #define usbhsh_ep_to_uep(u) ((u)->hcpriv) | |
133 | #define usbhsh_uep_to_pipe(u) ((u)->pipe) | |
134 | #define usbhsh_uep_to_udev(u) ((u)->udev) | |
e4c57ded KM |
135 | #define usbhsh_uep_to_ep(u) ((u)->ep) |
136 | ||
034d7c13 KM |
137 | #define usbhsh_urb_to_ureq(u) ((u)->hcpriv) |
138 | #define usbhsh_urb_to_usbv(u) ((u)->dev) | |
139 | ||
140 | #define usbhsh_usbv_to_udev(d) dev_get_drvdata(&(d)->dev) | |
141 | ||
142 | #define usbhsh_udev_to_usbv(h) ((h)->usbv) | |
ab142308 | 143 | #define usbhsh_udev_is_used(h) usbhsh_udev_to_usbv(h) |
034d7c13 | 144 | |
e5679d07 | 145 | #define usbhsh_pipe_to_uep(p) ((p)->mod_private) |
034d7c13 | 146 | |
9c673652 KM |
147 | #define usbhsh_device_parent(d) (usbhsh_usbv_to_udev((d)->usbv->parent)) |
148 | #define usbhsh_device_hubport(d) ((d)->usbv->portnum) | |
034d7c13 KM |
149 | #define usbhsh_device_number(h, d) ((int)((d) - (h)->udev)) |
150 | #define usbhsh_device_nth(h, d) ((h)->udev + d) | |
151 | #define usbhsh_device0(h) usbhsh_device_nth(h, 0) | |
152 | ||
153 | #define usbhsh_port_stat_init(h) ((h)->port_stat = 0) | |
154 | #define usbhsh_port_stat_set(h, s) ((h)->port_stat |= (s)) | |
155 | #define usbhsh_port_stat_clear(h, s) ((h)->port_stat &= ~(s)) | |
156 | #define usbhsh_port_stat_get(h) ((h)->port_stat) | |
157 | ||
25234b46 | 158 | #define usbhsh_pkt_to_ureq(p) \ |
034d7c13 KM |
159 | container_of((void *)p, struct usbhsh_request, pkt) |
160 | ||
161 | /* | |
162 | * req alloc/free | |
163 | */ | |
25234b46 | 164 | static struct usbhsh_request *usbhsh_ureq_alloc(struct usbhsh_hpriv *hpriv, |
034d7c13 KM |
165 | struct urb *urb, |
166 | gfp_t mem_flags) | |
167 | { | |
168 | struct usbhsh_request *ureq; | |
169 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
170 | struct device *dev = usbhs_priv_to_dev(priv); | |
171 | ||
c5b963f8 | 172 | ureq = kzalloc(sizeof(struct usbhsh_request), mem_flags); |
034d7c13 KM |
173 | if (!ureq) { |
174 | dev_err(dev, "ureq alloc fail\n"); | |
175 | return NULL; | |
176 | } | |
177 | ||
178 | usbhs_pkt_init(&ureq->pkt); | |
034d7c13 | 179 | ureq->urb = urb; |
fc9d5c79 | 180 | usbhsh_urb_to_ureq(urb) = ureq; |
034d7c13 KM |
181 | |
182 | return ureq; | |
183 | } | |
184 | ||
25234b46 | 185 | static void usbhsh_ureq_free(struct usbhsh_hpriv *hpriv, |
034d7c13 KM |
186 | struct usbhsh_request *ureq) |
187 | { | |
fc9d5c79 | 188 | usbhsh_urb_to_ureq(ureq->urb) = NULL; |
034d7c13 | 189 | ureq->urb = NULL; |
034d7c13 | 190 | |
c5b963f8 | 191 | kfree(ureq); |
034d7c13 | 192 | } |
034d7c13 | 193 | |
b1930da0 KM |
194 | /* |
195 | * status | |
196 | */ | |
197 | static int usbhsh_is_running(struct usbhsh_hpriv *hpriv) | |
198 | { | |
034d7c13 | 199 | /* |
b1930da0 KM |
200 | * we can decide some device is attached or not |
201 | * by checking mod.irq_attch | |
202 | * see | |
203 | * usbhsh_irq_attch() | |
204 | * usbhsh_irq_dtch() | |
034d7c13 | 205 | */ |
b1930da0 | 206 | return (hpriv->mod.irq_attch == NULL); |
034d7c13 KM |
207 | } |
208 | ||
209 | /* | |
e5679d07 | 210 | * pipe control |
034d7c13 | 211 | */ |
3edeee38 KM |
212 | static void usbhsh_endpoint_sequence_save(struct usbhsh_hpriv *hpriv, |
213 | struct urb *urb, | |
214 | struct usbhs_pkt *pkt) | |
034d7c13 | 215 | { |
3edeee38 KM |
216 | int len = urb->actual_length; |
217 | int maxp = usb_endpoint_maxp(&urb->ep->desc); | |
218 | int t = 0; | |
034d7c13 | 219 | |
3edeee38 KM |
220 | /* DCP is out of sequence control */ |
221 | if (usb_pipecontrol(urb->pipe)) | |
222 | return; | |
034d7c13 KM |
223 | |
224 | /* | |
3edeee38 KM |
225 | * renesas_usbhs pipe has a limitation in a number. |
226 | * So, driver should re-use the limited pipe for each device/endpoint. | |
227 | * DATA0/1 sequence should be saved for it. | |
228 | * see [image of mod_host] | |
229 | * [HARDWARE LIMITATION] | |
034d7c13 | 230 | */ |
034d7c13 KM |
231 | |
232 | /* | |
3edeee38 KM |
233 | * next sequence depends on actual_length |
234 | * | |
235 | * ex) actual_length = 1147, maxp = 512 | |
236 | * data0 : 512 | |
237 | * data1 : 512 | |
238 | * data0 : 123 | |
239 | * data1 is the next sequence | |
034d7c13 | 240 | */ |
3edeee38 KM |
241 | t = len / maxp; |
242 | if (len % maxp) | |
243 | t++; | |
244 | if (pkt->zero) | |
245 | t++; | |
246 | t %= 2; | |
247 | ||
248 | if (t) | |
249 | usb_dotoggle(urb->dev, | |
250 | usb_pipeendpoint(urb->pipe), | |
251 | usb_pipeout(urb->pipe)); | |
252 | } | |
253 | ||
e4c57ded KM |
254 | static struct usbhsh_device *usbhsh_device_get(struct usbhsh_hpriv *hpriv, |
255 | struct urb *urb); | |
e5679d07 KM |
256 | |
257 | static int usbhsh_pipe_attach(struct usbhsh_hpriv *hpriv, | |
258 | struct urb *urb) | |
e4c57ded KM |
259 | { |
260 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
e5679d07 | 261 | struct usbhsh_ep *uep = usbhsh_ep_to_uep(urb->ep); |
e4c57ded | 262 | struct usbhsh_device *udev = usbhsh_device_get(hpriv, urb); |
e5679d07 KM |
263 | struct usbhs_pipe *pipe; |
264 | struct usb_endpoint_descriptor *desc = &urb->ep->desc; | |
e4c57ded | 265 | struct device *dev = usbhs_priv_to_dev(priv); |
e4c57ded | 266 | unsigned long flags; |
e5679d07 KM |
267 | int dir_in_req = !!usb_pipein(urb->pipe); |
268 | int is_dcp = usb_endpoint_xfer_control(desc); | |
269 | int i, dir_in; | |
270 | int ret = -EBUSY; | |
e4c57ded KM |
271 | |
272 | /******************** spin lock ********************/ | |
273 | usbhs_lock(priv, flags); | |
274 | ||
7b332e5f KM |
275 | /* |
276 | * if uep has been attached to pipe, | |
277 | * reuse it | |
278 | */ | |
279 | if (usbhsh_uep_to_pipe(uep)) { | |
280 | ret = 0; | |
e5679d07 | 281 | goto usbhsh_pipe_attach_done; |
034d7c13 KM |
282 | } |
283 | ||
e5679d07 | 284 | usbhs_for_each_pipe_with_dcp(pipe, priv, i) { |
034d7c13 | 285 | |
e5679d07 KM |
286 | /* check pipe type */ |
287 | if (!usbhs_pipe_type_is(pipe, usb_endpoint_type(desc))) | |
288 | continue; | |
034d7c13 | 289 | |
e5679d07 KM |
290 | /* check pipe direction if normal pipe */ |
291 | if (!is_dcp) { | |
e4c57ded KM |
292 | dir_in = !!usbhs_pipe_is_dir_in(pipe); |
293 | if (0 != (dir_in - dir_in_req)) | |
294 | continue; | |
e5679d07 | 295 | } |
034d7c13 | 296 | |
e5679d07 KM |
297 | /* check pipe is free */ |
298 | if (usbhsh_pipe_to_uep(pipe)) | |
299 | continue; | |
034d7c13 | 300 | |
e5679d07 KM |
301 | /* |
302 | * attach pipe to uep | |
303 | * | |
304 | * usbhs_pipe_config_update() should be called after | |
305 | * usbhs_set_device_config() | |
306 | * see | |
307 | * DCPMAXP/PIPEMAXP | |
308 | */ | |
309 | usbhsh_uep_to_pipe(uep) = pipe; | |
310 | usbhsh_pipe_to_uep(pipe) = uep; | |
034d7c13 | 311 | |
e5679d07 KM |
312 | usbhs_pipe_config_update(pipe, |
313 | usbhsh_device_number(hpriv, udev), | |
314 | usb_endpoint_num(desc), | |
315 | usb_endpoint_maxp(desc)); | |
034d7c13 | 316 | |
e5679d07 KM |
317 | dev_dbg(dev, "%s [%d-%d(%s:%s)]\n", __func__, |
318 | usbhsh_device_number(hpriv, udev), | |
319 | usb_endpoint_num(desc), | |
320 | usbhs_pipe_name(pipe), | |
321 | dir_in_req ? "in" : "out"); | |
034d7c13 | 322 | |
e5679d07 KM |
323 | ret = 0; |
324 | break; | |
e4c57ded KM |
325 | } |
326 | ||
e5679d07 | 327 | usbhsh_pipe_attach_done: |
7b332e5f KM |
328 | if (0 == ret) |
329 | uep->counter++; | |
330 | ||
e5679d07 KM |
331 | usbhs_unlock(priv, flags); |
332 | /******************** spin unlock ******************/ | |
e4c57ded | 333 | |
e5679d07 | 334 | return ret; |
034d7c13 KM |
335 | } |
336 | ||
e5679d07 KM |
337 | static void usbhsh_pipe_detach(struct usbhsh_hpriv *hpriv, |
338 | struct usbhsh_ep *uep) | |
034d7c13 | 339 | { |
e5679d07 KM |
340 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
341 | struct usbhs_pipe *pipe; | |
342 | struct device *dev = usbhs_priv_to_dev(priv); | |
343 | unsigned long flags; | |
034d7c13 | 344 | |
4f053a24 KM |
345 | if (unlikely(!uep)) { |
346 | dev_err(dev, "no uep\n"); | |
347 | return; | |
348 | } | |
349 | ||
e5679d07 KM |
350 | /******************** spin lock ********************/ |
351 | usbhs_lock(priv, flags); | |
034d7c13 | 352 | |
e5679d07 | 353 | pipe = usbhsh_uep_to_pipe(uep); |
034d7c13 | 354 | |
e5679d07 KM |
355 | if (unlikely(!pipe)) { |
356 | dev_err(dev, "uep doens't have pipe\n"); | |
7b332e5f | 357 | } else if (1 == uep->counter--) { /* last user */ |
e5679d07 KM |
358 | struct usb_host_endpoint *ep = usbhsh_uep_to_ep(uep); |
359 | struct usbhsh_device *udev = usbhsh_uep_to_udev(uep); | |
360 | ||
361 | /* detach pipe from uep */ | |
362 | usbhsh_uep_to_pipe(uep) = NULL; | |
363 | usbhsh_pipe_to_uep(pipe) = NULL; | |
364 | ||
365 | dev_dbg(dev, "%s [%d-%d(%s)]\n", __func__, | |
366 | usbhsh_device_number(hpriv, udev), | |
367 | usb_endpoint_num(&ep->desc), | |
368 | usbhs_pipe_name(pipe)); | |
e4c57ded KM |
369 | } |
370 | ||
371 | usbhs_unlock(priv, flags); | |
372 | /******************** spin unlock ******************/ | |
034d7c13 KM |
373 | } |
374 | ||
375 | /* | |
e5679d07 | 376 | * endpoint control |
034d7c13 | 377 | */ |
e5679d07 KM |
378 | static int usbhsh_endpoint_attach(struct usbhsh_hpriv *hpriv, |
379 | struct urb *urb, | |
380 | gfp_t mem_flags) | |
034d7c13 KM |
381 | { |
382 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
e5679d07 KM |
383 | struct usbhsh_device *udev = usbhsh_device_get(hpriv, urb); |
384 | struct usb_host_endpoint *ep = urb->ep; | |
034d7c13 | 385 | struct usbhsh_ep *uep; |
e5679d07 | 386 | struct device *dev = usbhs_priv_to_dev(priv); |
034d7c13 | 387 | struct usb_endpoint_descriptor *desc = &ep->desc; |
e5679d07 | 388 | unsigned long flags; |
73ef635a | 389 | |
034d7c13 KM |
390 | uep = kzalloc(sizeof(struct usbhsh_ep), mem_flags); |
391 | if (!uep) { | |
392 | dev_err(dev, "usbhsh_ep alloc fail\n"); | |
e5679d07 | 393 | return -ENOMEM; |
034d7c13 | 394 | } |
73ef635a | 395 | |
e5679d07 KM |
396 | /******************** spin lock ********************/ |
397 | usbhs_lock(priv, flags); | |
398 | ||
e4c57ded | 399 | /* |
e5679d07 | 400 | * init endpoint |
e4c57ded | 401 | */ |
7b332e5f | 402 | uep->counter = 0; |
e5679d07 KM |
403 | INIT_LIST_HEAD(&uep->ep_list); |
404 | list_add_tail(&uep->ep_list, &udev->ep_list_head); | |
405 | ||
e4c57ded KM |
406 | usbhsh_uep_to_udev(uep) = udev; |
407 | usbhsh_uep_to_ep(uep) = ep; | |
408 | usbhsh_ep_to_uep(ep) = uep; | |
409 | ||
e5679d07 KM |
410 | usbhs_unlock(priv, flags); |
411 | /******************** spin unlock ******************/ | |
e4c57ded | 412 | |
e5679d07 | 413 | dev_dbg(dev, "%s [%d-%d]\n", __func__, |
e4c57ded | 414 | usbhsh_device_number(hpriv, udev), |
e5679d07 | 415 | usb_endpoint_num(desc)); |
e4c57ded KM |
416 | |
417 | return 0; | |
418 | } | |
419 | ||
420 | static void usbhsh_endpoint_detach(struct usbhsh_hpriv *hpriv, | |
421 | struct usb_host_endpoint *ep) | |
422 | { | |
423 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
424 | struct device *dev = usbhs_priv_to_dev(priv); | |
425 | struct usbhsh_ep *uep = usbhsh_ep_to_uep(ep); | |
e4c57ded KM |
426 | unsigned long flags; |
427 | ||
428 | if (!uep) | |
429 | return; | |
430 | ||
e5679d07 | 431 | dev_dbg(dev, "%s [%d-%d]\n", __func__, |
e4c57ded | 432 | usbhsh_device_number(hpriv, usbhsh_uep_to_udev(uep)), |
e5679d07 KM |
433 | usb_endpoint_num(&ep->desc)); |
434 | ||
435 | if (usbhsh_uep_to_pipe(uep)) | |
436 | usbhsh_pipe_detach(hpriv, uep); | |
e4c57ded KM |
437 | |
438 | /******************** spin lock ********************/ | |
439 | usbhs_lock(priv, flags); | |
440 | ||
e4c57ded KM |
441 | /* remove this endpoint from udev */ |
442 | list_del_init(&uep->ep_list); | |
443 | ||
e4c57ded KM |
444 | usbhsh_uep_to_udev(uep) = NULL; |
445 | usbhsh_uep_to_ep(uep) = NULL; | |
446 | usbhsh_ep_to_uep(ep) = NULL; | |
447 | ||
448 | usbhs_unlock(priv, flags); | |
449 | /******************** spin unlock ******************/ | |
450 | ||
451 | kfree(uep); | |
452 | } | |
453 | ||
454 | static void usbhsh_endpoint_detach_all(struct usbhsh_hpriv *hpriv, | |
455 | struct usbhsh_device *udev) | |
456 | { | |
457 | struct usbhsh_ep *uep, *next; | |
458 | ||
459 | list_for_each_entry_safe(uep, next, &udev->ep_list_head, ep_list) | |
460 | usbhsh_endpoint_detach(hpriv, usbhsh_uep_to_ep(uep)); | |
461 | } | |
462 | ||
034d7c13 KM |
463 | /* |
464 | * device control | |
465 | */ | |
9c673652 KM |
466 | static int usbhsh_connected_to_rhdev(struct usb_hcd *hcd, |
467 | struct usbhsh_device *udev) | |
468 | { | |
469 | struct usb_device *usbv = usbhsh_udev_to_usbv(udev); | |
470 | ||
471 | return hcd->self.root_hub == usbv->parent; | |
472 | } | |
034d7c13 KM |
473 | |
474 | static int usbhsh_device_has_endpoint(struct usbhsh_device *udev) | |
475 | { | |
476 | return !list_empty(&udev->ep_list_head); | |
477 | } | |
478 | ||
c1e4877a KM |
479 | static struct usbhsh_device *usbhsh_device_get(struct usbhsh_hpriv *hpriv, |
480 | struct urb *urb) | |
481 | { | |
482 | struct usb_device *usbv = usbhsh_urb_to_usbv(urb); | |
483 | struct usbhsh_device *udev = usbhsh_usbv_to_udev(usbv); | |
484 | ||
485 | /* usbhsh_device_attach() is still not called */ | |
486 | if (!udev) | |
487 | return NULL; | |
488 | ||
489 | /* if it is device0, return it */ | |
490 | if (0 == usb_pipedevice(urb->pipe)) | |
491 | return usbhsh_device0(hpriv); | |
492 | ||
493 | /* return attached device */ | |
494 | return udev; | |
495 | } | |
496 | ||
7aac8d15 | 497 | static struct usbhsh_device *usbhsh_device_attach(struct usbhsh_hpriv *hpriv, |
034d7c13 KM |
498 | struct urb *urb) |
499 | { | |
500 | struct usbhsh_device *udev = NULL; | |
c1e4877a KM |
501 | struct usbhsh_device *udev0 = usbhsh_device0(hpriv); |
502 | struct usbhsh_device *pos; | |
034d7c13 KM |
503 | struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); |
504 | struct device *dev = usbhsh_hcd_to_dev(hcd); | |
505 | struct usb_device *usbv = usbhsh_urb_to_usbv(urb); | |
506 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
d399f90d | 507 | unsigned long flags; |
9c673652 | 508 | u16 upphub, hubport; |
034d7c13 KM |
509 | int i; |
510 | ||
c1e4877a KM |
511 | /* |
512 | * This function should be called only while urb is pointing to device0. | |
513 | * It will attach unused usbhsh_device to urb (usbv), | |
514 | * and initialize device0. | |
515 | * You can use usbhsh_device_get() to get "current" udev, | |
516 | * and usbhsh_usbv_to_udev() is for "attached" udev. | |
517 | */ | |
518 | if (0 != usb_pipedevice(urb->pipe)) { | |
519 | dev_err(dev, "%s fail: urb isn't pointing device0\n", __func__); | |
520 | return NULL; | |
73ef635a | 521 | } |
034d7c13 | 522 | |
d399f90d KM |
523 | /******************** spin lock ********************/ |
524 | usbhs_lock(priv, flags); | |
525 | ||
034d7c13 | 526 | /* |
c1e4877a | 527 | * find unused device |
034d7c13 | 528 | */ |
c1e4877a KM |
529 | usbhsh_for_each_udev(pos, hpriv, i) { |
530 | if (usbhsh_udev_is_used(pos)) | |
034d7c13 | 531 | continue; |
c1e4877a KM |
532 | udev = pos; |
533 | break; | |
034d7c13 | 534 | } |
034d7c13 | 535 | |
d399f90d KM |
536 | if (udev) { |
537 | /* | |
538 | * usbhsh_usbv_to_udev() | |
539 | * usbhsh_udev_to_usbv() | |
540 | * will be enable | |
541 | */ | |
542 | dev_set_drvdata(&usbv->dev, udev); | |
543 | udev->usbv = usbv; | |
544 | } | |
73ef635a | 545 | |
d399f90d KM |
546 | usbhs_unlock(priv, flags); |
547 | /******************** spin unlock ******************/ | |
034d7c13 | 548 | |
ab142308 KM |
549 | if (!udev) { |
550 | dev_err(dev, "no free usbhsh_device\n"); | |
551 | return NULL; | |
034d7c13 KM |
552 | } |
553 | ||
e4c57ded | 554 | if (usbhsh_device_has_endpoint(udev)) { |
034d7c13 | 555 | dev_warn(dev, "udev have old endpoint\n"); |
e4c57ded KM |
556 | usbhsh_endpoint_detach_all(hpriv, udev); |
557 | } | |
034d7c13 | 558 | |
e4c57ded | 559 | if (usbhsh_device_has_endpoint(udev0)) { |
c1e4877a | 560 | dev_warn(dev, "udev0 have old endpoint\n"); |
e4c57ded | 561 | usbhsh_endpoint_detach_all(hpriv, udev0); |
034d7c13 | 562 | } |
c1e4877a | 563 | |
034d7c13 | 564 | /* uep will be attached */ |
c1e4877a | 565 | INIT_LIST_HEAD(&udev0->ep_list_head); |
034d7c13 KM |
566 | INIT_LIST_HEAD(&udev->ep_list_head); |
567 | ||
034d7c13 | 568 | /* |
c1e4877a | 569 | * set device0 config |
034d7c13 | 570 | */ |
c1e4877a KM |
571 | usbhs_set_device_config(priv, |
572 | 0, 0, 0, usbv->speed); | |
034d7c13 KM |
573 | |
574 | /* | |
c1e4877a | 575 | * set new device config |
034d7c13 | 576 | */ |
9c673652 KM |
577 | upphub = 0; |
578 | hubport = 0; | |
579 | if (!usbhsh_connected_to_rhdev(hcd, udev)) { | |
580 | /* if udev is not connected to rhdev, it means parent is Hub */ | |
581 | struct usbhsh_device *parent = usbhsh_device_parent(udev); | |
034d7c13 | 582 | |
9c673652 KM |
583 | upphub = usbhsh_device_number(hpriv, parent); |
584 | hubport = usbhsh_device_hubport(udev); | |
034d7c13 | 585 | |
9c673652 KM |
586 | dev_dbg(dev, "%s connecte to Hub [%d:%d](%p)\n", __func__, |
587 | upphub, hubport, parent); | |
588 | } | |
034d7c13 | 589 | |
3dd49268 | 590 | usbhs_set_device_config(priv, |
034d7c13 | 591 | usbhsh_device_number(hpriv, udev), |
9c673652 | 592 | upphub, hubport, usbv->speed); |
034d7c13 | 593 | |
034d7c13 KM |
594 | dev_dbg(dev, "%s [%d](%p)\n", __func__, |
595 | usbhsh_device_number(hpriv, udev), udev); | |
596 | ||
597 | return udev; | |
034d7c13 KM |
598 | } |
599 | ||
7aac8d15 | 600 | static void usbhsh_device_detach(struct usbhsh_hpriv *hpriv, |
034d7c13 | 601 | struct usbhsh_device *udev) |
034d7c13 | 602 | { |
034d7c13 | 603 | struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); |
034d7c13 | 604 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
034d7c13 KM |
605 | struct device *dev = usbhsh_hcd_to_dev(hcd); |
606 | struct usb_device *usbv = usbhsh_udev_to_usbv(udev); | |
d399f90d | 607 | unsigned long flags; |
034d7c13 | 608 | |
034d7c13 KM |
609 | dev_dbg(dev, "%s [%d](%p)\n", __func__, |
610 | usbhsh_device_number(hpriv, udev), udev); | |
034d7c13 | 611 | |
e4c57ded | 612 | if (usbhsh_device_has_endpoint(udev)) { |
034d7c13 | 613 | dev_warn(dev, "udev still have endpoint\n"); |
e4c57ded KM |
614 | usbhsh_endpoint_detach_all(hpriv, udev); |
615 | } | |
034d7c13 | 616 | |
c1e4877a KM |
617 | /* |
618 | * There is nothing to do if it is device0. | |
619 | * see | |
620 | * usbhsh_device_attach() | |
621 | * usbhsh_device_get() | |
622 | */ | |
623 | if (0 == usbhsh_device_number(hpriv, udev)) | |
624 | return; | |
034d7c13 | 625 | |
d399f90d KM |
626 | /******************** spin lock ********************/ |
627 | usbhs_lock(priv, flags); | |
034d7c13 | 628 | |
034d7c13 KM |
629 | /* |
630 | * usbhsh_usbv_to_udev() | |
631 | * usbhsh_udev_to_usbv() | |
632 | * will be disable | |
633 | */ | |
634 | dev_set_drvdata(&usbv->dev, NULL); | |
635 | udev->usbv = NULL; | |
034d7c13 | 636 | |
d399f90d KM |
637 | usbhs_unlock(priv, flags); |
638 | /******************** spin unlock ******************/ | |
034d7c13 KM |
639 | } |
640 | ||
641 | /* | |
642 | * queue push/pop | |
643 | */ | |
644 | static void usbhsh_queue_done(struct usbhs_priv *priv, struct usbhs_pkt *pkt) | |
645 | { | |
25234b46 | 646 | struct usbhsh_request *ureq = usbhsh_pkt_to_ureq(pkt); |
034d7c13 KM |
647 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); |
648 | struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); | |
649 | struct urb *urb = ureq->urb; | |
650 | struct device *dev = usbhs_priv_to_dev(priv); | |
6d0376f8 | 651 | int status = 0; |
034d7c13 KM |
652 | |
653 | dev_dbg(dev, "%s\n", __func__); | |
654 | ||
655 | if (!urb) { | |
656 | dev_warn(dev, "pkt doesn't have urb\n"); | |
657 | return; | |
658 | } | |
659 | ||
6d0376f8 KM |
660 | if (!usbhsh_is_running(hpriv)) |
661 | status = -ESHUTDOWN; | |
662 | ||
034d7c13 | 663 | urb->actual_length = pkt->actual; |
034d7c13 | 664 | |
3edeee38 | 665 | usbhsh_endpoint_sequence_save(hpriv, urb, pkt); |
e0b64ce6 KM |
666 | usbhsh_ureq_free(hpriv, ureq); |
667 | ||
d9b78f33 | 668 | usbhsh_pipe_detach(hpriv, usbhsh_ep_to_uep(urb->ep)); |
034d7c13 KM |
669 | |
670 | usb_hcd_unlink_urb_from_ep(hcd, urb); | |
6d0376f8 | 671 | usb_hcd_giveback_urb(hcd, urb, status); |
034d7c13 KM |
672 | } |
673 | ||
674 | static int usbhsh_queue_push(struct usb_hcd *hcd, | |
ee8a0bf5 KM |
675 | struct urb *urb, |
676 | gfp_t mem_flags) | |
034d7c13 | 677 | { |
ee8a0bf5 | 678 | struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); |
3eddc9e4 KM |
679 | struct usbhsh_ep *uep = usbhsh_ep_to_uep(urb->ep); |
680 | struct usbhs_pipe *pipe = usbhsh_uep_to_pipe(uep); | |
034d7c13 | 681 | struct device *dev = usbhsh_hcd_to_dev(hcd); |
ee8a0bf5 | 682 | struct usbhsh_request *ureq; |
034d7c13 | 683 | void *buf; |
3edeee38 | 684 | int len, sequence; |
034d7c13 KM |
685 | |
686 | if (usb_pipeisoc(urb->pipe)) { | |
687 | dev_err(dev, "pipe iso is not supported now\n"); | |
688 | return -EIO; | |
689 | } | |
690 | ||
ee8a0bf5 KM |
691 | /* this ureq will be freed on usbhsh_queue_done() */ |
692 | ureq = usbhsh_ureq_alloc(hpriv, urb, mem_flags); | |
693 | if (unlikely(!ureq)) { | |
694 | dev_err(dev, "ureq alloc fail\n"); | |
695 | return -ENOMEM; | |
696 | } | |
ee8a0bf5 | 697 | |
034d7c13 | 698 | if (usb_pipein(urb->pipe)) |
87c2905f | 699 | pipe->handler = &usbhs_fifo_dma_pop_handler; |
034d7c13 | 700 | else |
87c2905f | 701 | pipe->handler = &usbhs_fifo_dma_push_handler; |
034d7c13 KM |
702 | |
703 | buf = (void *)(urb->transfer_buffer + urb->actual_length); | |
704 | len = urb->transfer_buffer_length - urb->actual_length; | |
705 | ||
3edeee38 KM |
706 | sequence = usb_gettoggle(urb->dev, |
707 | usb_pipeendpoint(urb->pipe), | |
708 | usb_pipeout(urb->pipe)); | |
709 | ||
034d7c13 | 710 | dev_dbg(dev, "%s\n", __func__); |
ee8a0bf5 | 711 | usbhs_pkt_push(pipe, &ureq->pkt, usbhsh_queue_done, |
3edeee38 KM |
712 | buf, len, (urb->transfer_flags & URB_ZERO_PACKET), |
713 | sequence); | |
714 | ||
034d7c13 KM |
715 | usbhs_pkt_start(pipe); |
716 | ||
717 | return 0; | |
718 | } | |
719 | ||
2d833faa KM |
720 | static void usbhsh_queue_force_pop(struct usbhs_priv *priv, |
721 | struct usbhs_pipe *pipe) | |
722 | { | |
723 | struct usbhs_pkt *pkt; | |
724 | ||
725 | while (1) { | |
726 | pkt = usbhs_pkt_pop(pipe, NULL); | |
727 | if (!pkt) | |
728 | break; | |
729 | ||
730 | /* | |
731 | * if all packet are gone, usbhsh_endpoint_disable() | |
732 | * will be called. | |
733 | * then, attached device/endpoint/pipe will be detached | |
734 | */ | |
735 | usbhsh_queue_done(priv, pkt); | |
736 | } | |
737 | } | |
738 | ||
739 | static void usbhsh_queue_force_pop_all(struct usbhs_priv *priv) | |
740 | { | |
741 | struct usbhs_pipe *pos; | |
742 | int i; | |
743 | ||
744 | usbhs_for_each_pipe_with_dcp(pos, priv, i) | |
745 | usbhsh_queue_force_pop(priv, pos); | |
746 | } | |
747 | ||
034d7c13 KM |
748 | /* |
749 | * DCP setup stage | |
750 | */ | |
751 | static int usbhsh_is_request_address(struct urb *urb) | |
752 | { | |
25234b46 | 753 | struct usb_ctrlrequest *req; |
034d7c13 | 754 | |
25234b46 | 755 | req = (struct usb_ctrlrequest *)urb->setup_packet; |
034d7c13 | 756 | |
25234b46 KM |
757 | if ((DeviceOutRequest == req->bRequestType << 8) && |
758 | (USB_REQ_SET_ADDRESS == req->bRequest)) | |
034d7c13 KM |
759 | return 1; |
760 | else | |
761 | return 0; | |
762 | } | |
763 | ||
764 | static void usbhsh_setup_stage_packet_push(struct usbhsh_hpriv *hpriv, | |
765 | struct urb *urb, | |
766 | struct usbhs_pipe *pipe) | |
767 | { | |
768 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
769 | struct usb_ctrlrequest req; | |
770 | struct device *dev = usbhs_priv_to_dev(priv); | |
771 | ||
772 | /* | |
773 | * wait setup packet ACK | |
774 | * see | |
775 | * usbhsh_irq_setup_ack() | |
776 | * usbhsh_irq_setup_err() | |
777 | */ | |
7fccd480 | 778 | init_completion(&hpriv->setup_ack_done); |
034d7c13 KM |
779 | |
780 | /* copy original request */ | |
781 | memcpy(&req, urb->setup_packet, sizeof(struct usb_ctrlrequest)); | |
782 | ||
783 | /* | |
784 | * renesas_usbhs can not use original usb address. | |
785 | * see HARDWARE LIMITATION. | |
c1e4877a KM |
786 | * modify usb address here to use attached device. |
787 | * see usbhsh_device_attach() | |
034d7c13 KM |
788 | */ |
789 | if (usbhsh_is_request_address(urb)) { | |
c1e4877a KM |
790 | struct usb_device *usbv = usbhsh_urb_to_usbv(urb); |
791 | struct usbhsh_device *udev = usbhsh_usbv_to_udev(usbv); | |
792 | ||
793 | /* udev is a attached device */ | |
794 | req.wValue = usbhsh_device_number(hpriv, udev); | |
034d7c13 KM |
795 | dev_dbg(dev, "create new address - %d\n", req.wValue); |
796 | } | |
797 | ||
798 | /* set request */ | |
799 | usbhs_usbreq_set_val(priv, &req); | |
800 | ||
801 | /* | |
802 | * wait setup packet ACK | |
803 | */ | |
7fccd480 | 804 | wait_for_completion(&hpriv->setup_ack_done); |
034d7c13 KM |
805 | |
806 | dev_dbg(dev, "%s done\n", __func__); | |
807 | } | |
808 | ||
809 | /* | |
810 | * DCP data stage | |
811 | */ | |
812 | static void usbhsh_data_stage_packet_done(struct usbhs_priv *priv, | |
813 | struct usbhs_pkt *pkt) | |
814 | { | |
25234b46 | 815 | struct usbhsh_request *ureq = usbhsh_pkt_to_ureq(pkt); |
034d7c13 | 816 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); |
034d7c13 KM |
817 | |
818 | /* this ureq was connected to urb when usbhsh_urb_enqueue() */ | |
819 | ||
25234b46 | 820 | usbhsh_ureq_free(hpriv, ureq); |
034d7c13 KM |
821 | } |
822 | ||
ee8a0bf5 KM |
823 | static int usbhsh_data_stage_packet_push(struct usbhsh_hpriv *hpriv, |
824 | struct urb *urb, | |
825 | struct usbhs_pipe *pipe, | |
826 | gfp_t mem_flags) | |
827 | ||
034d7c13 KM |
828 | { |
829 | struct usbhsh_request *ureq; | |
034d7c13 | 830 | |
ee8a0bf5 KM |
831 | /* this ureq will be freed on usbhsh_data_stage_packet_done() */ |
832 | ureq = usbhsh_ureq_alloc(hpriv, urb, mem_flags); | |
833 | if (unlikely(!ureq)) | |
834 | return -ENOMEM; | |
034d7c13 KM |
835 | |
836 | if (usb_pipein(urb->pipe)) | |
837 | pipe->handler = &usbhs_dcp_data_stage_in_handler; | |
838 | else | |
839 | pipe->handler = &usbhs_dcp_data_stage_out_handler; | |
840 | ||
ee8a0bf5 | 841 | usbhs_pkt_push(pipe, &ureq->pkt, |
034d7c13 KM |
842 | usbhsh_data_stage_packet_done, |
843 | urb->transfer_buffer, | |
844 | urb->transfer_buffer_length, | |
3edeee38 KM |
845 | (urb->transfer_flags & URB_ZERO_PACKET), |
846 | -1); | |
ee8a0bf5 KM |
847 | |
848 | return 0; | |
034d7c13 KM |
849 | } |
850 | ||
851 | /* | |
852 | * DCP status stage | |
853 | */ | |
ee8a0bf5 | 854 | static int usbhsh_status_stage_packet_push(struct usbhsh_hpriv *hpriv, |
034d7c13 | 855 | struct urb *urb, |
ee8a0bf5 KM |
856 | struct usbhs_pipe *pipe, |
857 | gfp_t mem_flags) | |
034d7c13 KM |
858 | { |
859 | struct usbhsh_request *ureq; | |
034d7c13 | 860 | |
ee8a0bf5 KM |
861 | /* This ureq will be freed on usbhsh_queue_done() */ |
862 | ureq = usbhsh_ureq_alloc(hpriv, urb, mem_flags); | |
863 | if (unlikely(!ureq)) | |
864 | return -ENOMEM; | |
034d7c13 KM |
865 | |
866 | if (usb_pipein(urb->pipe)) | |
867 | pipe->handler = &usbhs_dcp_status_stage_in_handler; | |
868 | else | |
869 | pipe->handler = &usbhs_dcp_status_stage_out_handler; | |
870 | ||
ee8a0bf5 | 871 | usbhs_pkt_push(pipe, &ureq->pkt, |
034d7c13 KM |
872 | usbhsh_queue_done, |
873 | NULL, | |
874 | urb->transfer_buffer_length, | |
3edeee38 | 875 | 0, -1); |
ee8a0bf5 KM |
876 | |
877 | return 0; | |
034d7c13 KM |
878 | } |
879 | ||
880 | static int usbhsh_dcp_queue_push(struct usb_hcd *hcd, | |
ee8a0bf5 KM |
881 | struct urb *urb, |
882 | gfp_t mflags) | |
034d7c13 | 883 | { |
ee8a0bf5 | 884 | struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); |
3eddc9e4 KM |
885 | struct usbhsh_ep *uep = usbhsh_ep_to_uep(urb->ep); |
886 | struct usbhs_pipe *pipe = usbhsh_uep_to_pipe(uep); | |
034d7c13 | 887 | struct device *dev = usbhsh_hcd_to_dev(hcd); |
ee8a0bf5 | 888 | int ret; |
034d7c13 KM |
889 | |
890 | dev_dbg(dev, "%s\n", __func__); | |
891 | ||
892 | /* | |
893 | * setup stage | |
894 | * | |
895 | * usbhsh_send_setup_stage_packet() wait SACK/SIGN | |
896 | */ | |
897 | usbhsh_setup_stage_packet_push(hpriv, urb, pipe); | |
898 | ||
899 | /* | |
900 | * data stage | |
901 | * | |
902 | * It is pushed only when urb has buffer. | |
903 | */ | |
ee8a0bf5 KM |
904 | if (urb->transfer_buffer_length) { |
905 | ret = usbhsh_data_stage_packet_push(hpriv, urb, pipe, mflags); | |
906 | if (ret < 0) { | |
907 | dev_err(dev, "data stage failed\n"); | |
908 | return ret; | |
909 | } | |
910 | } | |
034d7c13 KM |
911 | |
912 | /* | |
913 | * status stage | |
914 | */ | |
ee8a0bf5 KM |
915 | ret = usbhsh_status_stage_packet_push(hpriv, urb, pipe, mflags); |
916 | if (ret < 0) { | |
917 | dev_err(dev, "status stage failed\n"); | |
918 | return ret; | |
919 | } | |
034d7c13 KM |
920 | |
921 | /* | |
922 | * start pushed packets | |
923 | */ | |
924 | usbhs_pkt_start(pipe); | |
925 | ||
926 | return 0; | |
927 | } | |
928 | ||
929 | /* | |
930 | * dma map functions | |
931 | */ | |
932 | static int usbhsh_dma_map_ctrl(struct usbhs_pkt *pkt, int map) | |
933 | { | |
87c2905f KM |
934 | if (map) { |
935 | struct usbhsh_request *ureq = usbhsh_pkt_to_ureq(pkt); | |
936 | struct urb *urb = ureq->urb; | |
937 | ||
938 | /* it can not use scatter/gather */ | |
939 | if (urb->num_sgs) | |
940 | return -EINVAL; | |
941 | ||
942 | pkt->dma = urb->transfer_dma; | |
943 | if (!pkt->dma) | |
944 | return -EINVAL; | |
945 | } | |
946 | ||
034d7c13 KM |
947 | return 0; |
948 | } | |
949 | ||
950 | /* | |
951 | * for hc_driver | |
952 | */ | |
953 | static int usbhsh_host_start(struct usb_hcd *hcd) | |
954 | { | |
955 | return 0; | |
956 | } | |
957 | ||
958 | static void usbhsh_host_stop(struct usb_hcd *hcd) | |
959 | { | |
960 | } | |
961 | ||
962 | static int usbhsh_urb_enqueue(struct usb_hcd *hcd, | |
963 | struct urb *urb, | |
964 | gfp_t mem_flags) | |
965 | { | |
966 | struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); | |
967 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
968 | struct device *dev = usbhs_priv_to_dev(priv); | |
034d7c13 | 969 | struct usb_host_endpoint *ep = urb->ep; |
7aac8d15 | 970 | struct usbhsh_device *new_udev = NULL; |
73ef635a | 971 | int is_dir_in = usb_pipein(urb->pipe); |
034d7c13 KM |
972 | int ret; |
973 | ||
73ef635a | 974 | dev_dbg(dev, "%s (%s)\n", __func__, is_dir_in ? "in" : "out"); |
034d7c13 | 975 | |
b1930da0 KM |
976 | if (!usbhsh_is_running(hpriv)) { |
977 | ret = -EIO; | |
15a3838b | 978 | dev_err(dev, "host is not running\n"); |
b1930da0 KM |
979 | goto usbhsh_urb_enqueue_error_not_linked; |
980 | } | |
981 | ||
034d7c13 | 982 | ret = usb_hcd_link_urb_to_ep(hcd, urb); |
15a3838b KM |
983 | if (ret) { |
984 | dev_err(dev, "urb link failed\n"); | |
034d7c13 | 985 | goto usbhsh_urb_enqueue_error_not_linked; |
15a3838b | 986 | } |
034d7c13 KM |
987 | |
988 | /* | |
7aac8d15 | 989 | * attach udev if needed |
e5679d07 | 990 | * see [image of mod_host] |
034d7c13 | 991 | */ |
c1e4877a | 992 | if (!usbhsh_device_get(hpriv, urb)) { |
7aac8d15 | 993 | new_udev = usbhsh_device_attach(hpriv, urb); |
37332ee0 KM |
994 | if (!new_udev) { |
995 | ret = -EIO; | |
15a3838b | 996 | dev_err(dev, "device attach failed\n"); |
034d7c13 | 997 | goto usbhsh_urb_enqueue_error_not_linked; |
37332ee0 | 998 | } |
034d7c13 KM |
999 | } |
1000 | ||
1001 | /* | |
4825093e | 1002 | * attach endpoint if needed |
e5679d07 | 1003 | * see [image of mod_host] |
034d7c13 | 1004 | */ |
4825093e KM |
1005 | if (!usbhsh_ep_to_uep(ep)) { |
1006 | ret = usbhsh_endpoint_attach(hpriv, urb, mem_flags); | |
15a3838b KM |
1007 | if (ret < 0) { |
1008 | dev_err(dev, "endpoint attach failed\n"); | |
034d7c13 | 1009 | goto usbhsh_urb_enqueue_error_free_device; |
15a3838b | 1010 | } |
034d7c13 | 1011 | } |
034d7c13 KM |
1012 | |
1013 | /* | |
e5679d07 KM |
1014 | * attach pipe to endpoint |
1015 | * see [image of mod_host] | |
034d7c13 | 1016 | */ |
7b332e5f | 1017 | ret = usbhsh_pipe_attach(hpriv, urb); |
15a3838b KM |
1018 | if (ret < 0) { |
1019 | dev_err(dev, "pipe attach failed\n"); | |
034d7c13 KM |
1020 | goto usbhsh_urb_enqueue_error_free_endpoint; |
1021 | } | |
034d7c13 KM |
1022 | |
1023 | /* | |
1024 | * push packet | |
1025 | */ | |
1026 | if (usb_pipecontrol(urb->pipe)) | |
3eddc9e4 | 1027 | ret = usbhsh_dcp_queue_push(hcd, urb, mem_flags); |
034d7c13 | 1028 | else |
3eddc9e4 | 1029 | ret = usbhsh_queue_push(hcd, urb, mem_flags); |
034d7c13 | 1030 | |
ee8a0bf5 | 1031 | return ret; |
034d7c13 KM |
1032 | |
1033 | usbhsh_urb_enqueue_error_free_endpoint: | |
e5679d07 | 1034 | usbhsh_endpoint_detach(hpriv, ep); |
034d7c13 KM |
1035 | usbhsh_urb_enqueue_error_free_device: |
1036 | if (new_udev) | |
7aac8d15 | 1037 | usbhsh_device_detach(hpriv, new_udev); |
034d7c13 KM |
1038 | usbhsh_urb_enqueue_error_not_linked: |
1039 | ||
1040 | dev_dbg(dev, "%s error\n", __func__); | |
1041 | ||
1042 | return ret; | |
1043 | } | |
1044 | ||
1045 | static int usbhsh_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) | |
1046 | { | |
1047 | struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); | |
1048 | struct usbhsh_request *ureq = usbhsh_urb_to_ureq(urb); | |
1049 | ||
1050 | if (ureq) { | |
54796543 KM |
1051 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
1052 | struct usbhs_pkt *pkt = &ureq->pkt; | |
1053 | ||
1054 | usbhs_pkt_pop(pkt->pipe, pkt); | |
1055 | usbhsh_queue_done(priv, pkt); | |
034d7c13 KM |
1056 | } |
1057 | ||
1058 | return 0; | |
1059 | } | |
1060 | ||
1061 | static void usbhsh_endpoint_disable(struct usb_hcd *hcd, | |
1062 | struct usb_host_endpoint *ep) | |
1063 | { | |
1064 | struct usbhsh_ep *uep = usbhsh_ep_to_uep(ep); | |
1065 | struct usbhsh_device *udev; | |
1066 | struct usbhsh_hpriv *hpriv; | |
1067 | ||
1068 | /* | |
1069 | * this function might be called manytimes by same hcd/ep | |
fca8ab7e | 1070 | * in-endpoint == out-endpoint if ep == dcp. |
034d7c13 KM |
1071 | */ |
1072 | if (!uep) | |
1073 | return; | |
1074 | ||
1075 | udev = usbhsh_uep_to_udev(uep); | |
1076 | hpriv = usbhsh_hcd_to_hpriv(hcd); | |
1077 | ||
4825093e | 1078 | usbhsh_endpoint_detach(hpriv, ep); |
034d7c13 KM |
1079 | |
1080 | /* | |
1081 | * if there is no endpoint, | |
1082 | * free device | |
1083 | */ | |
1084 | if (!usbhsh_device_has_endpoint(udev)) | |
7aac8d15 | 1085 | usbhsh_device_detach(hpriv, udev); |
034d7c13 KM |
1086 | } |
1087 | ||
1088 | static int usbhsh_hub_status_data(struct usb_hcd *hcd, char *buf) | |
1089 | { | |
1090 | struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); | |
034d7c13 KM |
1091 | int roothub_id = 1; /* only 1 root hub */ |
1092 | ||
1093 | /* | |
1094 | * does port stat was changed ? | |
1095 | * check USB_PORT_STAT_C_xxx << 16 | |
1096 | */ | |
1097 | if (usbhsh_port_stat_get(hpriv) & 0xFFFF0000) | |
1098 | *buf = (1 << roothub_id); | |
1099 | else | |
1100 | *buf = 0; | |
1101 | ||
034d7c13 KM |
1102 | return !!(*buf); |
1103 | } | |
1104 | ||
1105 | static int __usbhsh_hub_hub_feature(struct usbhsh_hpriv *hpriv, | |
1106 | u16 typeReq, u16 wValue, | |
1107 | u16 wIndex, char *buf, u16 wLength) | |
1108 | { | |
1109 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
1110 | struct device *dev = usbhs_priv_to_dev(priv); | |
1111 | ||
1112 | switch (wValue) { | |
1113 | case C_HUB_OVER_CURRENT: | |
1114 | case C_HUB_LOCAL_POWER: | |
1115 | dev_dbg(dev, "%s :: C_HUB_xx\n", __func__); | |
1116 | return 0; | |
1117 | } | |
1118 | ||
1119 | return -EPIPE; | |
1120 | } | |
1121 | ||
1122 | static int __usbhsh_hub_port_feature(struct usbhsh_hpriv *hpriv, | |
1123 | u16 typeReq, u16 wValue, | |
1124 | u16 wIndex, char *buf, u16 wLength) | |
1125 | { | |
1126 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
1127 | struct device *dev = usbhs_priv_to_dev(priv); | |
1128 | int enable = (typeReq == SetPortFeature); | |
1129 | int speed, i, timeout = 128; | |
1130 | int roothub_id = 1; /* only 1 root hub */ | |
1131 | ||
1132 | /* common error */ | |
1133 | if (wIndex > roothub_id || wLength != 0) | |
1134 | return -EPIPE; | |
1135 | ||
1136 | /* check wValue */ | |
1137 | switch (wValue) { | |
1138 | case USB_PORT_FEAT_POWER: | |
1139 | usbhs_vbus_ctrl(priv, enable); | |
1140 | dev_dbg(dev, "%s :: USB_PORT_FEAT_POWER\n", __func__); | |
1141 | break; | |
1142 | ||
1143 | case USB_PORT_FEAT_ENABLE: | |
1144 | case USB_PORT_FEAT_SUSPEND: | |
1145 | case USB_PORT_FEAT_C_ENABLE: | |
1146 | case USB_PORT_FEAT_C_SUSPEND: | |
1147 | case USB_PORT_FEAT_C_CONNECTION: | |
1148 | case USB_PORT_FEAT_C_OVER_CURRENT: | |
1149 | case USB_PORT_FEAT_C_RESET: | |
1150 | dev_dbg(dev, "%s :: USB_PORT_FEAT_xxx\n", __func__); | |
1151 | break; | |
1152 | ||
1153 | case USB_PORT_FEAT_RESET: | |
1154 | if (!enable) | |
1155 | break; | |
1156 | ||
1157 | usbhsh_port_stat_clear(hpriv, | |
1158 | USB_PORT_STAT_HIGH_SPEED | | |
1159 | USB_PORT_STAT_LOW_SPEED); | |
1160 | ||
2d833faa KM |
1161 | usbhsh_queue_force_pop_all(priv); |
1162 | ||
034d7c13 KM |
1163 | usbhs_bus_send_reset(priv); |
1164 | msleep(20); | |
1165 | usbhs_bus_send_sof_enable(priv); | |
1166 | ||
1167 | for (i = 0; i < timeout ; i++) { | |
1168 | switch (usbhs_bus_get_speed(priv)) { | |
1169 | case USB_SPEED_LOW: | |
1170 | speed = USB_PORT_STAT_LOW_SPEED; | |
1171 | goto got_usb_bus_speed; | |
1172 | case USB_SPEED_HIGH: | |
1173 | speed = USB_PORT_STAT_HIGH_SPEED; | |
1174 | goto got_usb_bus_speed; | |
1175 | case USB_SPEED_FULL: | |
1176 | speed = 0; | |
1177 | goto got_usb_bus_speed; | |
1178 | } | |
1179 | ||
1180 | msleep(20); | |
1181 | } | |
1182 | return -EPIPE; | |
1183 | ||
1184 | got_usb_bus_speed: | |
1185 | usbhsh_port_stat_set(hpriv, speed); | |
1186 | usbhsh_port_stat_set(hpriv, USB_PORT_STAT_ENABLE); | |
1187 | ||
1188 | dev_dbg(dev, "%s :: USB_PORT_FEAT_RESET (speed = %d)\n", | |
1189 | __func__, speed); | |
1190 | ||
1191 | /* status change is not needed */ | |
1192 | return 0; | |
1193 | ||
1194 | default: | |
1195 | return -EPIPE; | |
1196 | } | |
1197 | ||
1198 | /* set/clear status */ | |
1199 | if (enable) | |
1200 | usbhsh_port_stat_set(hpriv, (1 << wValue)); | |
1201 | else | |
1202 | usbhsh_port_stat_clear(hpriv, (1 << wValue)); | |
1203 | ||
1204 | return 0; | |
1205 | } | |
1206 | ||
1207 | static int __usbhsh_hub_get_status(struct usbhsh_hpriv *hpriv, | |
1208 | u16 typeReq, u16 wValue, | |
1209 | u16 wIndex, char *buf, u16 wLength) | |
1210 | { | |
1211 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
1212 | struct usb_hub_descriptor *desc = (struct usb_hub_descriptor *)buf; | |
1213 | struct device *dev = usbhs_priv_to_dev(priv); | |
1214 | int roothub_id = 1; /* only 1 root hub */ | |
1215 | ||
1216 | switch (typeReq) { | |
1217 | case GetHubStatus: | |
1218 | dev_dbg(dev, "%s :: GetHubStatus\n", __func__); | |
1219 | ||
1220 | *buf = 0x00; | |
1221 | break; | |
1222 | ||
1223 | case GetPortStatus: | |
1224 | if (wIndex != roothub_id) | |
1225 | return -EPIPE; | |
1226 | ||
1227 | dev_dbg(dev, "%s :: GetPortStatus\n", __func__); | |
1228 | *(__le32 *)buf = cpu_to_le32(usbhsh_port_stat_get(hpriv)); | |
1229 | break; | |
1230 | ||
1231 | case GetHubDescriptor: | |
1232 | desc->bDescriptorType = 0x29; | |
1233 | desc->bHubContrCurrent = 0; | |
1234 | desc->bNbrPorts = roothub_id; | |
1235 | desc->bDescLength = 9; | |
1236 | desc->bPwrOn2PwrGood = 0; | |
1237 | desc->wHubCharacteristics = cpu_to_le16(0x0011); | |
1238 | desc->u.hs.DeviceRemovable[0] = (roothub_id << 1); | |
1239 | desc->u.hs.DeviceRemovable[1] = ~0; | |
1240 | dev_dbg(dev, "%s :: GetHubDescriptor\n", __func__); | |
1241 | break; | |
1242 | } | |
1243 | ||
1244 | return 0; | |
1245 | } | |
1246 | ||
1247 | static int usbhsh_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, | |
1248 | u16 wIndex, char *buf, u16 wLength) | |
1249 | { | |
1250 | struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); | |
1251 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
1252 | struct device *dev = usbhs_priv_to_dev(priv); | |
1253 | int ret = -EPIPE; | |
1254 | ||
1255 | switch (typeReq) { | |
1256 | ||
1257 | /* Hub Feature */ | |
1258 | case ClearHubFeature: | |
1259 | case SetHubFeature: | |
1260 | ret = __usbhsh_hub_hub_feature(hpriv, typeReq, | |
1261 | wValue, wIndex, buf, wLength); | |
1262 | break; | |
1263 | ||
1264 | /* Port Feature */ | |
1265 | case SetPortFeature: | |
1266 | case ClearPortFeature: | |
1267 | ret = __usbhsh_hub_port_feature(hpriv, typeReq, | |
1268 | wValue, wIndex, buf, wLength); | |
1269 | break; | |
1270 | ||
1271 | /* Get status */ | |
1272 | case GetHubStatus: | |
1273 | case GetPortStatus: | |
1274 | case GetHubDescriptor: | |
1275 | ret = __usbhsh_hub_get_status(hpriv, typeReq, | |
1276 | wValue, wIndex, buf, wLength); | |
1277 | break; | |
1278 | } | |
1279 | ||
1280 | dev_dbg(dev, "typeReq = %x, ret = %d, port_stat = %x\n", | |
1281 | typeReq, ret, usbhsh_port_stat_get(hpriv)); | |
1282 | ||
1283 | return ret; | |
1284 | } | |
1285 | ||
e7ae64c7 KM |
1286 | static int usbhsh_bus_nop(struct usb_hcd *hcd) |
1287 | { | |
1288 | /* nothing to do */ | |
1289 | return 0; | |
1290 | } | |
1291 | ||
034d7c13 KM |
1292 | static struct hc_driver usbhsh_driver = { |
1293 | .description = usbhsh_hcd_name, | |
1294 | .hcd_priv_size = sizeof(struct usbhsh_hpriv), | |
1295 | ||
1296 | /* | |
1297 | * generic hardware linkage | |
1298 | */ | |
1299 | .flags = HCD_USB2, | |
1300 | ||
1301 | .start = usbhsh_host_start, | |
1302 | .stop = usbhsh_host_stop, | |
1303 | ||
1304 | /* | |
1305 | * managing i/o requests and associated device resources | |
1306 | */ | |
1307 | .urb_enqueue = usbhsh_urb_enqueue, | |
1308 | .urb_dequeue = usbhsh_urb_dequeue, | |
1309 | .endpoint_disable = usbhsh_endpoint_disable, | |
1310 | ||
1311 | /* | |
1312 | * root hub | |
1313 | */ | |
1314 | .hub_status_data = usbhsh_hub_status_data, | |
1315 | .hub_control = usbhsh_hub_control, | |
e7ae64c7 KM |
1316 | .bus_suspend = usbhsh_bus_nop, |
1317 | .bus_resume = usbhsh_bus_nop, | |
034d7c13 KM |
1318 | }; |
1319 | ||
1320 | /* | |
1321 | * interrupt functions | |
1322 | */ | |
1323 | static int usbhsh_irq_attch(struct usbhs_priv *priv, | |
1324 | struct usbhs_irq_state *irq_state) | |
1325 | { | |
1326 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); | |
1327 | struct device *dev = usbhs_priv_to_dev(priv); | |
1328 | ||
1329 | dev_dbg(dev, "device attached\n"); | |
1330 | ||
1331 | usbhsh_port_stat_set(hpriv, USB_PORT_STAT_CONNECTION); | |
1332 | usbhsh_port_stat_set(hpriv, USB_PORT_STAT_C_CONNECTION << 16); | |
1333 | ||
31e00fd1 KM |
1334 | /* |
1335 | * attch interrupt might happen infinitely on some device | |
1336 | * (on self power USB hub ?) | |
1337 | * disable it here. | |
b1930da0 KM |
1338 | * |
1339 | * usbhsh_is_running() becomes effective | |
1340 | * according to this process. | |
1341 | * see | |
1342 | * usbhsh_is_running() | |
1343 | * usbhsh_urb_enqueue() | |
31e00fd1 KM |
1344 | */ |
1345 | hpriv->mod.irq_attch = NULL; | |
1346 | usbhs_irq_callback_update(priv, &hpriv->mod); | |
1347 | ||
034d7c13 KM |
1348 | return 0; |
1349 | } | |
1350 | ||
1351 | static int usbhsh_irq_dtch(struct usbhs_priv *priv, | |
1352 | struct usbhs_irq_state *irq_state) | |
1353 | { | |
1354 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); | |
1355 | struct device *dev = usbhs_priv_to_dev(priv); | |
1356 | ||
1357 | dev_dbg(dev, "device detached\n"); | |
1358 | ||
1359 | usbhsh_port_stat_clear(hpriv, USB_PORT_STAT_CONNECTION); | |
1360 | usbhsh_port_stat_set(hpriv, USB_PORT_STAT_C_CONNECTION << 16); | |
1361 | ||
31e00fd1 KM |
1362 | /* |
1363 | * enable attch interrupt again | |
b1930da0 KM |
1364 | * |
1365 | * usbhsh_is_running() becomes invalid | |
1366 | * according to this process. | |
1367 | * see | |
1368 | * usbhsh_is_running() | |
1369 | * usbhsh_urb_enqueue() | |
31e00fd1 KM |
1370 | */ |
1371 | hpriv->mod.irq_attch = usbhsh_irq_attch; | |
1372 | usbhs_irq_callback_update(priv, &hpriv->mod); | |
1373 | ||
2d833faa KM |
1374 | /* |
1375 | * usbhsh_queue_force_pop_all() should be called | |
1376 | * after usbhsh_is_running() becomes invalid. | |
1377 | */ | |
1378 | usbhsh_queue_force_pop_all(priv); | |
1379 | ||
034d7c13 KM |
1380 | return 0; |
1381 | } | |
1382 | ||
1383 | static int usbhsh_irq_setup_ack(struct usbhs_priv *priv, | |
1384 | struct usbhs_irq_state *irq_state) | |
1385 | { | |
1386 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); | |
1387 | struct device *dev = usbhs_priv_to_dev(priv); | |
1388 | ||
1389 | dev_dbg(dev, "setup packet OK\n"); | |
1390 | ||
7fccd480 | 1391 | complete(&hpriv->setup_ack_done); /* see usbhsh_urb_enqueue() */ |
034d7c13 KM |
1392 | |
1393 | return 0; | |
1394 | } | |
1395 | ||
1396 | static int usbhsh_irq_setup_err(struct usbhs_priv *priv, | |
1397 | struct usbhs_irq_state *irq_state) | |
1398 | { | |
1399 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); | |
1400 | struct device *dev = usbhs_priv_to_dev(priv); | |
1401 | ||
1402 | dev_dbg(dev, "setup packet Err\n"); | |
1403 | ||
7fccd480 | 1404 | complete(&hpriv->setup_ack_done); /* see usbhsh_urb_enqueue() */ |
034d7c13 KM |
1405 | |
1406 | return 0; | |
1407 | } | |
1408 | ||
1409 | /* | |
1410 | * module start/stop | |
1411 | */ | |
1412 | static void usbhsh_pipe_init_for_host(struct usbhs_priv *priv) | |
1413 | { | |
1414 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); | |
034d7c13 KM |
1415 | struct usbhs_pipe *pipe; |
1416 | u32 *pipe_type = usbhs_get_dparam(priv, pipe_type); | |
1417 | int pipe_size = usbhs_get_dparam(priv, pipe_size); | |
1418 | int old_type, dir_in, i; | |
1419 | ||
1420 | /* init all pipe */ | |
1421 | old_type = USB_ENDPOINT_XFER_CONTROL; | |
1422 | for (i = 0; i < pipe_size; i++) { | |
034d7c13 KM |
1423 | |
1424 | /* | |
1425 | * data "output" will be finished as soon as possible, | |
1426 | * but there is no guaranty at data "input" case. | |
1427 | * | |
1428 | * "input" needs "standby" pipe. | |
1429 | * So, "input" direction pipe > "output" direction pipe | |
1430 | * is good idea. | |
1431 | * | |
1432 | * 1st USB_ENDPOINT_XFER_xxx will be output direction, | |
1433 | * and the other will be input direction here. | |
1434 | * | |
1435 | * ex) | |
1436 | * ... | |
1437 | * USB_ENDPOINT_XFER_ISOC -> dir out | |
1438 | * USB_ENDPOINT_XFER_ISOC -> dir in | |
1439 | * USB_ENDPOINT_XFER_BULK -> dir out | |
1440 | * USB_ENDPOINT_XFER_BULK -> dir in | |
1441 | * USB_ENDPOINT_XFER_BULK -> dir in | |
1442 | * ... | |
1443 | */ | |
1444 | dir_in = (pipe_type[i] == old_type); | |
1445 | old_type = pipe_type[i]; | |
1446 | ||
1447 | if (USB_ENDPOINT_XFER_CONTROL == pipe_type[i]) { | |
1448 | pipe = usbhs_dcp_malloc(priv); | |
1449 | usbhsh_hpriv_to_dcp(hpriv) = pipe; | |
1450 | } else { | |
1451 | pipe = usbhs_pipe_malloc(priv, | |
1452 | pipe_type[i], | |
1453 | dir_in); | |
1454 | } | |
1455 | ||
e5679d07 | 1456 | pipe->mod_private = NULL; |
034d7c13 KM |
1457 | } |
1458 | } | |
1459 | ||
1460 | static int usbhsh_start(struct usbhs_priv *priv) | |
1461 | { | |
1462 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); | |
1463 | struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); | |
1464 | struct usbhs_mod *mod = usbhs_mod_get_current(priv); | |
1465 | struct device *dev = usbhs_priv_to_dev(priv); | |
1466 | int ret; | |
1467 | ||
1468 | /* add hcd */ | |
1469 | ret = usb_add_hcd(hcd, 0, 0); | |
1470 | if (ret < 0) | |
1471 | return 0; | |
1472 | ||
1473 | /* | |
1474 | * pipe initialize and enable DCP | |
1475 | */ | |
1476 | usbhs_pipe_init(priv, | |
1477 | usbhsh_dma_map_ctrl); | |
1478 | usbhs_fifo_init(priv); | |
1479 | usbhsh_pipe_init_for_host(priv); | |
1480 | ||
1481 | /* | |
1482 | * system config enble | |
1483 | * - HI speed | |
1484 | * - host | |
1485 | * - usb module | |
1486 | */ | |
034d7c13 | 1487 | usbhs_sys_host_ctrl(priv, 1); |
034d7c13 KM |
1488 | |
1489 | /* | |
1490 | * enable irq callback | |
1491 | */ | |
1492 | mod->irq_attch = usbhsh_irq_attch; | |
1493 | mod->irq_dtch = usbhsh_irq_dtch; | |
1494 | mod->irq_sack = usbhsh_irq_setup_ack; | |
1495 | mod->irq_sign = usbhsh_irq_setup_err; | |
1496 | usbhs_irq_callback_update(priv, mod); | |
1497 | ||
1498 | dev_dbg(dev, "start host\n"); | |
1499 | ||
1500 | return ret; | |
1501 | } | |
1502 | ||
1503 | static int usbhsh_stop(struct usbhs_priv *priv) | |
1504 | { | |
1505 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); | |
1506 | struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); | |
146ee50a | 1507 | struct usbhs_mod *mod = usbhs_mod_get_current(priv); |
034d7c13 KM |
1508 | struct device *dev = usbhs_priv_to_dev(priv); |
1509 | ||
146ee50a KM |
1510 | /* |
1511 | * disable irq callback | |
1512 | */ | |
1513 | mod->irq_attch = NULL; | |
1514 | mod->irq_dtch = NULL; | |
1515 | mod->irq_sack = NULL; | |
1516 | mod->irq_sign = NULL; | |
1517 | usbhs_irq_callback_update(priv, mod); | |
1518 | ||
034d7c13 KM |
1519 | usb_remove_hcd(hcd); |
1520 | ||
1521 | /* disable sys */ | |
034d7c13 | 1522 | usbhs_sys_host_ctrl(priv, 0); |
034d7c13 KM |
1523 | |
1524 | dev_dbg(dev, "quit host\n"); | |
1525 | ||
1526 | return 0; | |
1527 | } | |
1528 | ||
b7a8d17d | 1529 | int usbhs_mod_host_probe(struct usbhs_priv *priv) |
034d7c13 KM |
1530 | { |
1531 | struct usbhsh_hpriv *hpriv; | |
1532 | struct usb_hcd *hcd; | |
034d7c13 KM |
1533 | struct usbhsh_device *udev; |
1534 | struct device *dev = usbhs_priv_to_dev(priv); | |
034d7c13 KM |
1535 | int i; |
1536 | ||
1537 | /* initialize hcd */ | |
1538 | hcd = usb_create_hcd(&usbhsh_driver, dev, usbhsh_hcd_name); | |
1539 | if (!hcd) { | |
1540 | dev_err(dev, "Failed to create hcd\n"); | |
1541 | return -ENOMEM; | |
1542 | } | |
1115b9e2 | 1543 | hcd->has_tt = 1; /* for low/full speed */ |
034d7c13 | 1544 | |
034d7c13 KM |
1545 | /* |
1546 | * CAUTION | |
1547 | * | |
1548 | * There is no guarantee that it is possible to access usb module here. | |
1549 | * Don't accesses to it. | |
1550 | * The accesse will be enable after "usbhsh_start" | |
1551 | */ | |
1552 | ||
1553 | hpriv = usbhsh_hcd_to_hpriv(hcd); | |
1554 | ||
1555 | /* | |
1556 | * register itself | |
1557 | */ | |
1558 | usbhs_mod_register(priv, &hpriv->mod, USBHS_HOST); | |
1559 | ||
1560 | /* init hpriv */ | |
1561 | hpriv->mod.name = "host"; | |
1562 | hpriv->mod.start = usbhsh_start; | |
1563 | hpriv->mod.stop = usbhsh_stop; | |
034d7c13 KM |
1564 | usbhsh_port_stat_init(hpriv); |
1565 | ||
1566 | /* init all device */ | |
1567 | usbhsh_for_each_udev_with_dev0(udev, hpriv, i) { | |
1568 | udev->usbv = NULL; | |
1569 | INIT_LIST_HEAD(&udev->ep_list_head); | |
1570 | } | |
1571 | ||
1572 | dev_info(dev, "host probed\n"); | |
1573 | ||
1574 | return 0; | |
034d7c13 KM |
1575 | } |
1576 | ||
b7a8d17d | 1577 | int usbhs_mod_host_remove(struct usbhs_priv *priv) |
034d7c13 KM |
1578 | { |
1579 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); | |
1580 | struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); | |
1581 | ||
034d7c13 KM |
1582 | usb_put_hcd(hcd); |
1583 | ||
1584 | return 0; | |
1585 | } |