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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; | |
034d7c13 | 169 | |
c5b963f8 | 170 | ureq = kzalloc(sizeof(struct usbhsh_request), mem_flags); |
93b6cb45 | 171 | if (!ureq) |
034d7c13 | 172 | return NULL; |
034d7c13 KM |
173 | |
174 | usbhs_pkt_init(&ureq->pkt); | |
034d7c13 | 175 | ureq->urb = urb; |
fc9d5c79 | 176 | usbhsh_urb_to_ureq(urb) = ureq; |
034d7c13 KM |
177 | |
178 | return ureq; | |
179 | } | |
180 | ||
25234b46 | 181 | static void usbhsh_ureq_free(struct usbhsh_hpriv *hpriv, |
034d7c13 KM |
182 | struct usbhsh_request *ureq) |
183 | { | |
fc9d5c79 | 184 | usbhsh_urb_to_ureq(ureq->urb) = NULL; |
034d7c13 | 185 | ureq->urb = NULL; |
034d7c13 | 186 | |
c5b963f8 | 187 | kfree(ureq); |
034d7c13 | 188 | } |
034d7c13 | 189 | |
b1930da0 KM |
190 | /* |
191 | * status | |
192 | */ | |
193 | static int usbhsh_is_running(struct usbhsh_hpriv *hpriv) | |
194 | { | |
034d7c13 | 195 | /* |
b1930da0 KM |
196 | * we can decide some device is attached or not |
197 | * by checking mod.irq_attch | |
198 | * see | |
199 | * usbhsh_irq_attch() | |
200 | * usbhsh_irq_dtch() | |
034d7c13 | 201 | */ |
b1930da0 | 202 | return (hpriv->mod.irq_attch == NULL); |
034d7c13 KM |
203 | } |
204 | ||
205 | /* | |
e5679d07 | 206 | * pipe control |
034d7c13 | 207 | */ |
3edeee38 KM |
208 | static void usbhsh_endpoint_sequence_save(struct usbhsh_hpriv *hpriv, |
209 | struct urb *urb, | |
210 | struct usbhs_pkt *pkt) | |
034d7c13 | 211 | { |
3edeee38 KM |
212 | int len = urb->actual_length; |
213 | int maxp = usb_endpoint_maxp(&urb->ep->desc); | |
214 | int t = 0; | |
034d7c13 | 215 | |
3edeee38 KM |
216 | /* DCP is out of sequence control */ |
217 | if (usb_pipecontrol(urb->pipe)) | |
218 | return; | |
034d7c13 KM |
219 | |
220 | /* | |
3edeee38 KM |
221 | * renesas_usbhs pipe has a limitation in a number. |
222 | * So, driver should re-use the limited pipe for each device/endpoint. | |
223 | * DATA0/1 sequence should be saved for it. | |
224 | * see [image of mod_host] | |
225 | * [HARDWARE LIMITATION] | |
034d7c13 | 226 | */ |
034d7c13 KM |
227 | |
228 | /* | |
3edeee38 KM |
229 | * next sequence depends on actual_length |
230 | * | |
231 | * ex) actual_length = 1147, maxp = 512 | |
232 | * data0 : 512 | |
233 | * data1 : 512 | |
234 | * data0 : 123 | |
235 | * data1 is the next sequence | |
034d7c13 | 236 | */ |
3edeee38 KM |
237 | t = len / maxp; |
238 | if (len % maxp) | |
239 | t++; | |
240 | if (pkt->zero) | |
241 | t++; | |
242 | t %= 2; | |
243 | ||
244 | if (t) | |
245 | usb_dotoggle(urb->dev, | |
246 | usb_pipeendpoint(urb->pipe), | |
247 | usb_pipeout(urb->pipe)); | |
248 | } | |
249 | ||
e4c57ded KM |
250 | static struct usbhsh_device *usbhsh_device_get(struct usbhsh_hpriv *hpriv, |
251 | struct urb *urb); | |
e5679d07 KM |
252 | |
253 | static int usbhsh_pipe_attach(struct usbhsh_hpriv *hpriv, | |
254 | struct urb *urb) | |
e4c57ded KM |
255 | { |
256 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
e5679d07 | 257 | struct usbhsh_ep *uep = usbhsh_ep_to_uep(urb->ep); |
e4c57ded | 258 | struct usbhsh_device *udev = usbhsh_device_get(hpriv, urb); |
e5679d07 KM |
259 | struct usbhs_pipe *pipe; |
260 | struct usb_endpoint_descriptor *desc = &urb->ep->desc; | |
e4c57ded | 261 | struct device *dev = usbhs_priv_to_dev(priv); |
e4c57ded | 262 | unsigned long flags; |
e5679d07 KM |
263 | int dir_in_req = !!usb_pipein(urb->pipe); |
264 | int is_dcp = usb_endpoint_xfer_control(desc); | |
265 | int i, dir_in; | |
266 | int ret = -EBUSY; | |
e4c57ded KM |
267 | |
268 | /******************** spin lock ********************/ | |
269 | usbhs_lock(priv, flags); | |
270 | ||
7b332e5f KM |
271 | /* |
272 | * if uep has been attached to pipe, | |
273 | * reuse it | |
274 | */ | |
275 | if (usbhsh_uep_to_pipe(uep)) { | |
276 | ret = 0; | |
e5679d07 | 277 | goto usbhsh_pipe_attach_done; |
034d7c13 KM |
278 | } |
279 | ||
e5679d07 | 280 | usbhs_for_each_pipe_with_dcp(pipe, priv, i) { |
034d7c13 | 281 | |
e5679d07 KM |
282 | /* check pipe type */ |
283 | if (!usbhs_pipe_type_is(pipe, usb_endpoint_type(desc))) | |
284 | continue; | |
034d7c13 | 285 | |
e5679d07 KM |
286 | /* check pipe direction if normal pipe */ |
287 | if (!is_dcp) { | |
e4c57ded KM |
288 | dir_in = !!usbhs_pipe_is_dir_in(pipe); |
289 | if (0 != (dir_in - dir_in_req)) | |
290 | continue; | |
e5679d07 | 291 | } |
034d7c13 | 292 | |
e5679d07 KM |
293 | /* check pipe is free */ |
294 | if (usbhsh_pipe_to_uep(pipe)) | |
295 | continue; | |
034d7c13 | 296 | |
e5679d07 KM |
297 | /* |
298 | * attach pipe to uep | |
299 | * | |
300 | * usbhs_pipe_config_update() should be called after | |
301 | * usbhs_set_device_config() | |
302 | * see | |
303 | * DCPMAXP/PIPEMAXP | |
304 | */ | |
305 | usbhsh_uep_to_pipe(uep) = pipe; | |
306 | usbhsh_pipe_to_uep(pipe) = uep; | |
034d7c13 | 307 | |
e5679d07 KM |
308 | usbhs_pipe_config_update(pipe, |
309 | usbhsh_device_number(hpriv, udev), | |
310 | usb_endpoint_num(desc), | |
311 | usb_endpoint_maxp(desc)); | |
034d7c13 | 312 | |
e5679d07 KM |
313 | dev_dbg(dev, "%s [%d-%d(%s:%s)]\n", __func__, |
314 | usbhsh_device_number(hpriv, udev), | |
315 | usb_endpoint_num(desc), | |
316 | usbhs_pipe_name(pipe), | |
317 | dir_in_req ? "in" : "out"); | |
034d7c13 | 318 | |
e5679d07 KM |
319 | ret = 0; |
320 | break; | |
e4c57ded KM |
321 | } |
322 | ||
e5679d07 | 323 | usbhsh_pipe_attach_done: |
7b332e5f KM |
324 | if (0 == ret) |
325 | uep->counter++; | |
326 | ||
e5679d07 KM |
327 | usbhs_unlock(priv, flags); |
328 | /******************** spin unlock ******************/ | |
e4c57ded | 329 | |
e5679d07 | 330 | return ret; |
034d7c13 KM |
331 | } |
332 | ||
e5679d07 KM |
333 | static void usbhsh_pipe_detach(struct usbhsh_hpriv *hpriv, |
334 | struct usbhsh_ep *uep) | |
034d7c13 | 335 | { |
e5679d07 KM |
336 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
337 | struct usbhs_pipe *pipe; | |
338 | struct device *dev = usbhs_priv_to_dev(priv); | |
339 | unsigned long flags; | |
034d7c13 | 340 | |
4f053a24 KM |
341 | if (unlikely(!uep)) { |
342 | dev_err(dev, "no uep\n"); | |
343 | return; | |
344 | } | |
345 | ||
e5679d07 KM |
346 | /******************** spin lock ********************/ |
347 | usbhs_lock(priv, flags); | |
034d7c13 | 348 | |
e5679d07 | 349 | pipe = usbhsh_uep_to_pipe(uep); |
034d7c13 | 350 | |
e5679d07 KM |
351 | if (unlikely(!pipe)) { |
352 | dev_err(dev, "uep doens't have pipe\n"); | |
7b332e5f | 353 | } else if (1 == uep->counter--) { /* last user */ |
e5679d07 KM |
354 | struct usb_host_endpoint *ep = usbhsh_uep_to_ep(uep); |
355 | struct usbhsh_device *udev = usbhsh_uep_to_udev(uep); | |
356 | ||
357 | /* detach pipe from uep */ | |
358 | usbhsh_uep_to_pipe(uep) = NULL; | |
359 | usbhsh_pipe_to_uep(pipe) = NULL; | |
360 | ||
361 | dev_dbg(dev, "%s [%d-%d(%s)]\n", __func__, | |
362 | usbhsh_device_number(hpriv, udev), | |
363 | usb_endpoint_num(&ep->desc), | |
364 | usbhs_pipe_name(pipe)); | |
e4c57ded KM |
365 | } |
366 | ||
367 | usbhs_unlock(priv, flags); | |
368 | /******************** spin unlock ******************/ | |
034d7c13 KM |
369 | } |
370 | ||
371 | /* | |
e5679d07 | 372 | * endpoint control |
034d7c13 | 373 | */ |
e5679d07 KM |
374 | static int usbhsh_endpoint_attach(struct usbhsh_hpriv *hpriv, |
375 | struct urb *urb, | |
376 | gfp_t mem_flags) | |
034d7c13 KM |
377 | { |
378 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
e5679d07 KM |
379 | struct usbhsh_device *udev = usbhsh_device_get(hpriv, urb); |
380 | struct usb_host_endpoint *ep = urb->ep; | |
034d7c13 | 381 | struct usbhsh_ep *uep; |
e5679d07 | 382 | struct device *dev = usbhs_priv_to_dev(priv); |
034d7c13 | 383 | struct usb_endpoint_descriptor *desc = &ep->desc; |
e5679d07 | 384 | unsigned long flags; |
73ef635a | 385 | |
034d7c13 | 386 | uep = kzalloc(sizeof(struct usbhsh_ep), mem_flags); |
93b6cb45 | 387 | if (!uep) |
e5679d07 | 388 | return -ENOMEM; |
73ef635a | 389 | |
e5679d07 KM |
390 | /******************** spin lock ********************/ |
391 | usbhs_lock(priv, flags); | |
392 | ||
e4c57ded | 393 | /* |
e5679d07 | 394 | * init endpoint |
e4c57ded | 395 | */ |
7b332e5f | 396 | uep->counter = 0; |
e5679d07 KM |
397 | INIT_LIST_HEAD(&uep->ep_list); |
398 | list_add_tail(&uep->ep_list, &udev->ep_list_head); | |
399 | ||
e4c57ded KM |
400 | usbhsh_uep_to_udev(uep) = udev; |
401 | usbhsh_uep_to_ep(uep) = ep; | |
402 | usbhsh_ep_to_uep(ep) = uep; | |
403 | ||
e5679d07 KM |
404 | usbhs_unlock(priv, flags); |
405 | /******************** spin unlock ******************/ | |
e4c57ded | 406 | |
e5679d07 | 407 | dev_dbg(dev, "%s [%d-%d]\n", __func__, |
e4c57ded | 408 | usbhsh_device_number(hpriv, udev), |
e5679d07 | 409 | usb_endpoint_num(desc)); |
e4c57ded KM |
410 | |
411 | return 0; | |
412 | } | |
413 | ||
414 | static void usbhsh_endpoint_detach(struct usbhsh_hpriv *hpriv, | |
415 | struct usb_host_endpoint *ep) | |
416 | { | |
417 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
418 | struct device *dev = usbhs_priv_to_dev(priv); | |
419 | struct usbhsh_ep *uep = usbhsh_ep_to_uep(ep); | |
e4c57ded KM |
420 | unsigned long flags; |
421 | ||
422 | if (!uep) | |
423 | return; | |
424 | ||
e5679d07 | 425 | dev_dbg(dev, "%s [%d-%d]\n", __func__, |
e4c57ded | 426 | usbhsh_device_number(hpriv, usbhsh_uep_to_udev(uep)), |
e5679d07 KM |
427 | usb_endpoint_num(&ep->desc)); |
428 | ||
429 | if (usbhsh_uep_to_pipe(uep)) | |
430 | usbhsh_pipe_detach(hpriv, uep); | |
e4c57ded KM |
431 | |
432 | /******************** spin lock ********************/ | |
433 | usbhs_lock(priv, flags); | |
434 | ||
e4c57ded KM |
435 | /* remove this endpoint from udev */ |
436 | list_del_init(&uep->ep_list); | |
437 | ||
e4c57ded KM |
438 | usbhsh_uep_to_udev(uep) = NULL; |
439 | usbhsh_uep_to_ep(uep) = NULL; | |
440 | usbhsh_ep_to_uep(ep) = NULL; | |
441 | ||
442 | usbhs_unlock(priv, flags); | |
443 | /******************** spin unlock ******************/ | |
444 | ||
445 | kfree(uep); | |
446 | } | |
447 | ||
448 | static void usbhsh_endpoint_detach_all(struct usbhsh_hpriv *hpriv, | |
449 | struct usbhsh_device *udev) | |
450 | { | |
451 | struct usbhsh_ep *uep, *next; | |
452 | ||
453 | list_for_each_entry_safe(uep, next, &udev->ep_list_head, ep_list) | |
454 | usbhsh_endpoint_detach(hpriv, usbhsh_uep_to_ep(uep)); | |
455 | } | |
456 | ||
034d7c13 KM |
457 | /* |
458 | * device control | |
459 | */ | |
9c673652 KM |
460 | static int usbhsh_connected_to_rhdev(struct usb_hcd *hcd, |
461 | struct usbhsh_device *udev) | |
462 | { | |
463 | struct usb_device *usbv = usbhsh_udev_to_usbv(udev); | |
464 | ||
465 | return hcd->self.root_hub == usbv->parent; | |
466 | } | |
034d7c13 KM |
467 | |
468 | static int usbhsh_device_has_endpoint(struct usbhsh_device *udev) | |
469 | { | |
470 | return !list_empty(&udev->ep_list_head); | |
471 | } | |
472 | ||
c1e4877a KM |
473 | static struct usbhsh_device *usbhsh_device_get(struct usbhsh_hpriv *hpriv, |
474 | struct urb *urb) | |
475 | { | |
476 | struct usb_device *usbv = usbhsh_urb_to_usbv(urb); | |
477 | struct usbhsh_device *udev = usbhsh_usbv_to_udev(usbv); | |
478 | ||
479 | /* usbhsh_device_attach() is still not called */ | |
480 | if (!udev) | |
481 | return NULL; | |
482 | ||
483 | /* if it is device0, return it */ | |
484 | if (0 == usb_pipedevice(urb->pipe)) | |
485 | return usbhsh_device0(hpriv); | |
486 | ||
487 | /* return attached device */ | |
488 | return udev; | |
489 | } | |
490 | ||
7aac8d15 | 491 | static struct usbhsh_device *usbhsh_device_attach(struct usbhsh_hpriv *hpriv, |
034d7c13 KM |
492 | struct urb *urb) |
493 | { | |
494 | struct usbhsh_device *udev = NULL; | |
c1e4877a KM |
495 | struct usbhsh_device *udev0 = usbhsh_device0(hpriv); |
496 | struct usbhsh_device *pos; | |
034d7c13 KM |
497 | struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); |
498 | struct device *dev = usbhsh_hcd_to_dev(hcd); | |
499 | struct usb_device *usbv = usbhsh_urb_to_usbv(urb); | |
500 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
d399f90d | 501 | unsigned long flags; |
9c673652 | 502 | u16 upphub, hubport; |
034d7c13 KM |
503 | int i; |
504 | ||
c1e4877a KM |
505 | /* |
506 | * This function should be called only while urb is pointing to device0. | |
507 | * It will attach unused usbhsh_device to urb (usbv), | |
508 | * and initialize device0. | |
509 | * You can use usbhsh_device_get() to get "current" udev, | |
510 | * and usbhsh_usbv_to_udev() is for "attached" udev. | |
511 | */ | |
512 | if (0 != usb_pipedevice(urb->pipe)) { | |
513 | dev_err(dev, "%s fail: urb isn't pointing device0\n", __func__); | |
514 | return NULL; | |
73ef635a | 515 | } |
034d7c13 | 516 | |
d399f90d KM |
517 | /******************** spin lock ********************/ |
518 | usbhs_lock(priv, flags); | |
519 | ||
034d7c13 | 520 | /* |
c1e4877a | 521 | * find unused device |
034d7c13 | 522 | */ |
c1e4877a KM |
523 | usbhsh_for_each_udev(pos, hpriv, i) { |
524 | if (usbhsh_udev_is_used(pos)) | |
034d7c13 | 525 | continue; |
c1e4877a KM |
526 | udev = pos; |
527 | break; | |
034d7c13 | 528 | } |
034d7c13 | 529 | |
d399f90d KM |
530 | if (udev) { |
531 | /* | |
532 | * usbhsh_usbv_to_udev() | |
533 | * usbhsh_udev_to_usbv() | |
534 | * will be enable | |
535 | */ | |
536 | dev_set_drvdata(&usbv->dev, udev); | |
537 | udev->usbv = usbv; | |
538 | } | |
73ef635a | 539 | |
d399f90d KM |
540 | usbhs_unlock(priv, flags); |
541 | /******************** spin unlock ******************/ | |
034d7c13 | 542 | |
ab142308 KM |
543 | if (!udev) { |
544 | dev_err(dev, "no free usbhsh_device\n"); | |
545 | return NULL; | |
034d7c13 KM |
546 | } |
547 | ||
e4c57ded | 548 | if (usbhsh_device_has_endpoint(udev)) { |
034d7c13 | 549 | dev_warn(dev, "udev have old endpoint\n"); |
e4c57ded KM |
550 | usbhsh_endpoint_detach_all(hpriv, udev); |
551 | } | |
034d7c13 | 552 | |
e4c57ded | 553 | if (usbhsh_device_has_endpoint(udev0)) { |
c1e4877a | 554 | dev_warn(dev, "udev0 have old endpoint\n"); |
e4c57ded | 555 | usbhsh_endpoint_detach_all(hpriv, udev0); |
034d7c13 | 556 | } |
c1e4877a | 557 | |
034d7c13 | 558 | /* uep will be attached */ |
c1e4877a | 559 | INIT_LIST_HEAD(&udev0->ep_list_head); |
034d7c13 KM |
560 | INIT_LIST_HEAD(&udev->ep_list_head); |
561 | ||
034d7c13 | 562 | /* |
c1e4877a | 563 | * set device0 config |
034d7c13 | 564 | */ |
c1e4877a KM |
565 | usbhs_set_device_config(priv, |
566 | 0, 0, 0, usbv->speed); | |
034d7c13 KM |
567 | |
568 | /* | |
c1e4877a | 569 | * set new device config |
034d7c13 | 570 | */ |
9c673652 KM |
571 | upphub = 0; |
572 | hubport = 0; | |
573 | if (!usbhsh_connected_to_rhdev(hcd, udev)) { | |
574 | /* if udev is not connected to rhdev, it means parent is Hub */ | |
575 | struct usbhsh_device *parent = usbhsh_device_parent(udev); | |
034d7c13 | 576 | |
9c673652 KM |
577 | upphub = usbhsh_device_number(hpriv, parent); |
578 | hubport = usbhsh_device_hubport(udev); | |
034d7c13 | 579 | |
9c673652 KM |
580 | dev_dbg(dev, "%s connecte to Hub [%d:%d](%p)\n", __func__, |
581 | upphub, hubport, parent); | |
582 | } | |
034d7c13 | 583 | |
3dd49268 | 584 | usbhs_set_device_config(priv, |
034d7c13 | 585 | usbhsh_device_number(hpriv, udev), |
9c673652 | 586 | upphub, hubport, usbv->speed); |
034d7c13 | 587 | |
034d7c13 KM |
588 | dev_dbg(dev, "%s [%d](%p)\n", __func__, |
589 | usbhsh_device_number(hpriv, udev), udev); | |
590 | ||
591 | return udev; | |
034d7c13 KM |
592 | } |
593 | ||
7aac8d15 | 594 | static void usbhsh_device_detach(struct usbhsh_hpriv *hpriv, |
034d7c13 | 595 | struct usbhsh_device *udev) |
034d7c13 | 596 | { |
034d7c13 | 597 | struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); |
034d7c13 | 598 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
034d7c13 KM |
599 | struct device *dev = usbhsh_hcd_to_dev(hcd); |
600 | struct usb_device *usbv = usbhsh_udev_to_usbv(udev); | |
d399f90d | 601 | unsigned long flags; |
034d7c13 | 602 | |
034d7c13 KM |
603 | dev_dbg(dev, "%s [%d](%p)\n", __func__, |
604 | usbhsh_device_number(hpriv, udev), udev); | |
034d7c13 | 605 | |
e4c57ded | 606 | if (usbhsh_device_has_endpoint(udev)) { |
034d7c13 | 607 | dev_warn(dev, "udev still have endpoint\n"); |
e4c57ded KM |
608 | usbhsh_endpoint_detach_all(hpriv, udev); |
609 | } | |
034d7c13 | 610 | |
c1e4877a KM |
611 | /* |
612 | * There is nothing to do if it is device0. | |
613 | * see | |
614 | * usbhsh_device_attach() | |
615 | * usbhsh_device_get() | |
616 | */ | |
617 | if (0 == usbhsh_device_number(hpriv, udev)) | |
618 | return; | |
034d7c13 | 619 | |
d399f90d KM |
620 | /******************** spin lock ********************/ |
621 | usbhs_lock(priv, flags); | |
034d7c13 | 622 | |
034d7c13 KM |
623 | /* |
624 | * usbhsh_usbv_to_udev() | |
625 | * usbhsh_udev_to_usbv() | |
626 | * will be disable | |
627 | */ | |
628 | dev_set_drvdata(&usbv->dev, NULL); | |
629 | udev->usbv = NULL; | |
034d7c13 | 630 | |
d399f90d KM |
631 | usbhs_unlock(priv, flags); |
632 | /******************** spin unlock ******************/ | |
034d7c13 KM |
633 | } |
634 | ||
635 | /* | |
636 | * queue push/pop | |
637 | */ | |
638 | static void usbhsh_queue_done(struct usbhs_priv *priv, struct usbhs_pkt *pkt) | |
639 | { | |
25234b46 | 640 | struct usbhsh_request *ureq = usbhsh_pkt_to_ureq(pkt); |
034d7c13 KM |
641 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); |
642 | struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); | |
643 | struct urb *urb = ureq->urb; | |
644 | struct device *dev = usbhs_priv_to_dev(priv); | |
6d0376f8 | 645 | int status = 0; |
034d7c13 KM |
646 | |
647 | dev_dbg(dev, "%s\n", __func__); | |
648 | ||
649 | if (!urb) { | |
650 | dev_warn(dev, "pkt doesn't have urb\n"); | |
651 | return; | |
652 | } | |
653 | ||
6d0376f8 KM |
654 | if (!usbhsh_is_running(hpriv)) |
655 | status = -ESHUTDOWN; | |
656 | ||
034d7c13 | 657 | urb->actual_length = pkt->actual; |
034d7c13 | 658 | |
3edeee38 | 659 | usbhsh_endpoint_sequence_save(hpriv, urb, pkt); |
e0b64ce6 KM |
660 | usbhsh_ureq_free(hpriv, ureq); |
661 | ||
d9b78f33 | 662 | usbhsh_pipe_detach(hpriv, usbhsh_ep_to_uep(urb->ep)); |
034d7c13 KM |
663 | |
664 | usb_hcd_unlink_urb_from_ep(hcd, urb); | |
6d0376f8 | 665 | usb_hcd_giveback_urb(hcd, urb, status); |
034d7c13 KM |
666 | } |
667 | ||
668 | static int usbhsh_queue_push(struct usb_hcd *hcd, | |
ee8a0bf5 KM |
669 | struct urb *urb, |
670 | gfp_t mem_flags) | |
034d7c13 | 671 | { |
ee8a0bf5 | 672 | struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); |
3eddc9e4 KM |
673 | struct usbhsh_ep *uep = usbhsh_ep_to_uep(urb->ep); |
674 | struct usbhs_pipe *pipe = usbhsh_uep_to_pipe(uep); | |
034d7c13 | 675 | struct device *dev = usbhsh_hcd_to_dev(hcd); |
ee8a0bf5 | 676 | struct usbhsh_request *ureq; |
034d7c13 | 677 | void *buf; |
3edeee38 | 678 | int len, sequence; |
034d7c13 KM |
679 | |
680 | if (usb_pipeisoc(urb->pipe)) { | |
681 | dev_err(dev, "pipe iso is not supported now\n"); | |
682 | return -EIO; | |
683 | } | |
684 | ||
ee8a0bf5 KM |
685 | /* this ureq will be freed on usbhsh_queue_done() */ |
686 | ureq = usbhsh_ureq_alloc(hpriv, urb, mem_flags); | |
687 | if (unlikely(!ureq)) { | |
688 | dev_err(dev, "ureq alloc fail\n"); | |
689 | return -ENOMEM; | |
690 | } | |
ee8a0bf5 | 691 | |
034d7c13 | 692 | if (usb_pipein(urb->pipe)) |
87c2905f | 693 | pipe->handler = &usbhs_fifo_dma_pop_handler; |
034d7c13 | 694 | else |
87c2905f | 695 | pipe->handler = &usbhs_fifo_dma_push_handler; |
034d7c13 KM |
696 | |
697 | buf = (void *)(urb->transfer_buffer + urb->actual_length); | |
698 | len = urb->transfer_buffer_length - urb->actual_length; | |
699 | ||
3edeee38 KM |
700 | sequence = usb_gettoggle(urb->dev, |
701 | usb_pipeendpoint(urb->pipe), | |
702 | usb_pipeout(urb->pipe)); | |
703 | ||
034d7c13 | 704 | dev_dbg(dev, "%s\n", __func__); |
ee8a0bf5 | 705 | usbhs_pkt_push(pipe, &ureq->pkt, usbhsh_queue_done, |
3edeee38 KM |
706 | buf, len, (urb->transfer_flags & URB_ZERO_PACKET), |
707 | sequence); | |
708 | ||
034d7c13 KM |
709 | usbhs_pkt_start(pipe); |
710 | ||
711 | return 0; | |
712 | } | |
713 | ||
2d833faa KM |
714 | static void usbhsh_queue_force_pop(struct usbhs_priv *priv, |
715 | struct usbhs_pipe *pipe) | |
716 | { | |
717 | struct usbhs_pkt *pkt; | |
718 | ||
719 | while (1) { | |
720 | pkt = usbhs_pkt_pop(pipe, NULL); | |
721 | if (!pkt) | |
722 | break; | |
723 | ||
724 | /* | |
725 | * if all packet are gone, usbhsh_endpoint_disable() | |
726 | * will be called. | |
727 | * then, attached device/endpoint/pipe will be detached | |
728 | */ | |
729 | usbhsh_queue_done(priv, pkt); | |
730 | } | |
731 | } | |
732 | ||
733 | static void usbhsh_queue_force_pop_all(struct usbhs_priv *priv) | |
734 | { | |
735 | struct usbhs_pipe *pos; | |
736 | int i; | |
737 | ||
738 | usbhs_for_each_pipe_with_dcp(pos, priv, i) | |
739 | usbhsh_queue_force_pop(priv, pos); | |
740 | } | |
741 | ||
034d7c13 KM |
742 | /* |
743 | * DCP setup stage | |
744 | */ | |
745 | static int usbhsh_is_request_address(struct urb *urb) | |
746 | { | |
25234b46 | 747 | struct usb_ctrlrequest *req; |
034d7c13 | 748 | |
25234b46 | 749 | req = (struct usb_ctrlrequest *)urb->setup_packet; |
034d7c13 | 750 | |
25234b46 KM |
751 | if ((DeviceOutRequest == req->bRequestType << 8) && |
752 | (USB_REQ_SET_ADDRESS == req->bRequest)) | |
034d7c13 KM |
753 | return 1; |
754 | else | |
755 | return 0; | |
756 | } | |
757 | ||
758 | static void usbhsh_setup_stage_packet_push(struct usbhsh_hpriv *hpriv, | |
759 | struct urb *urb, | |
760 | struct usbhs_pipe *pipe) | |
761 | { | |
762 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
763 | struct usb_ctrlrequest req; | |
764 | struct device *dev = usbhs_priv_to_dev(priv); | |
765 | ||
766 | /* | |
767 | * wait setup packet ACK | |
768 | * see | |
769 | * usbhsh_irq_setup_ack() | |
770 | * usbhsh_irq_setup_err() | |
771 | */ | |
7fccd480 | 772 | init_completion(&hpriv->setup_ack_done); |
034d7c13 KM |
773 | |
774 | /* copy original request */ | |
775 | memcpy(&req, urb->setup_packet, sizeof(struct usb_ctrlrequest)); | |
776 | ||
777 | /* | |
778 | * renesas_usbhs can not use original usb address. | |
779 | * see HARDWARE LIMITATION. | |
c1e4877a KM |
780 | * modify usb address here to use attached device. |
781 | * see usbhsh_device_attach() | |
034d7c13 KM |
782 | */ |
783 | if (usbhsh_is_request_address(urb)) { | |
c1e4877a KM |
784 | struct usb_device *usbv = usbhsh_urb_to_usbv(urb); |
785 | struct usbhsh_device *udev = usbhsh_usbv_to_udev(usbv); | |
786 | ||
787 | /* udev is a attached device */ | |
788 | req.wValue = usbhsh_device_number(hpriv, udev); | |
034d7c13 KM |
789 | dev_dbg(dev, "create new address - %d\n", req.wValue); |
790 | } | |
791 | ||
792 | /* set request */ | |
793 | usbhs_usbreq_set_val(priv, &req); | |
794 | ||
795 | /* | |
796 | * wait setup packet ACK | |
797 | */ | |
7fccd480 | 798 | wait_for_completion(&hpriv->setup_ack_done); |
034d7c13 KM |
799 | |
800 | dev_dbg(dev, "%s done\n", __func__); | |
801 | } | |
802 | ||
803 | /* | |
804 | * DCP data stage | |
805 | */ | |
806 | static void usbhsh_data_stage_packet_done(struct usbhs_priv *priv, | |
807 | struct usbhs_pkt *pkt) | |
808 | { | |
25234b46 | 809 | struct usbhsh_request *ureq = usbhsh_pkt_to_ureq(pkt); |
034d7c13 | 810 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); |
034d7c13 KM |
811 | |
812 | /* this ureq was connected to urb when usbhsh_urb_enqueue() */ | |
813 | ||
25234b46 | 814 | usbhsh_ureq_free(hpriv, ureq); |
034d7c13 KM |
815 | } |
816 | ||
ee8a0bf5 KM |
817 | static int usbhsh_data_stage_packet_push(struct usbhsh_hpriv *hpriv, |
818 | struct urb *urb, | |
819 | struct usbhs_pipe *pipe, | |
820 | gfp_t mem_flags) | |
821 | ||
034d7c13 KM |
822 | { |
823 | struct usbhsh_request *ureq; | |
034d7c13 | 824 | |
ee8a0bf5 KM |
825 | /* this ureq will be freed on usbhsh_data_stage_packet_done() */ |
826 | ureq = usbhsh_ureq_alloc(hpriv, urb, mem_flags); | |
827 | if (unlikely(!ureq)) | |
828 | return -ENOMEM; | |
034d7c13 KM |
829 | |
830 | if (usb_pipein(urb->pipe)) | |
831 | pipe->handler = &usbhs_dcp_data_stage_in_handler; | |
832 | else | |
833 | pipe->handler = &usbhs_dcp_data_stage_out_handler; | |
834 | ||
ee8a0bf5 | 835 | usbhs_pkt_push(pipe, &ureq->pkt, |
034d7c13 KM |
836 | usbhsh_data_stage_packet_done, |
837 | urb->transfer_buffer, | |
838 | urb->transfer_buffer_length, | |
3edeee38 KM |
839 | (urb->transfer_flags & URB_ZERO_PACKET), |
840 | -1); | |
ee8a0bf5 KM |
841 | |
842 | return 0; | |
034d7c13 KM |
843 | } |
844 | ||
845 | /* | |
846 | * DCP status stage | |
847 | */ | |
ee8a0bf5 | 848 | static int usbhsh_status_stage_packet_push(struct usbhsh_hpriv *hpriv, |
034d7c13 | 849 | struct urb *urb, |
ee8a0bf5 KM |
850 | struct usbhs_pipe *pipe, |
851 | gfp_t mem_flags) | |
034d7c13 KM |
852 | { |
853 | struct usbhsh_request *ureq; | |
034d7c13 | 854 | |
ee8a0bf5 KM |
855 | /* This ureq will be freed on usbhsh_queue_done() */ |
856 | ureq = usbhsh_ureq_alloc(hpriv, urb, mem_flags); | |
857 | if (unlikely(!ureq)) | |
858 | return -ENOMEM; | |
034d7c13 KM |
859 | |
860 | if (usb_pipein(urb->pipe)) | |
861 | pipe->handler = &usbhs_dcp_status_stage_in_handler; | |
862 | else | |
863 | pipe->handler = &usbhs_dcp_status_stage_out_handler; | |
864 | ||
ee8a0bf5 | 865 | usbhs_pkt_push(pipe, &ureq->pkt, |
034d7c13 KM |
866 | usbhsh_queue_done, |
867 | NULL, | |
868 | urb->transfer_buffer_length, | |
3edeee38 | 869 | 0, -1); |
ee8a0bf5 KM |
870 | |
871 | return 0; | |
034d7c13 KM |
872 | } |
873 | ||
874 | static int usbhsh_dcp_queue_push(struct usb_hcd *hcd, | |
ee8a0bf5 KM |
875 | struct urb *urb, |
876 | gfp_t mflags) | |
034d7c13 | 877 | { |
ee8a0bf5 | 878 | struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); |
3eddc9e4 KM |
879 | struct usbhsh_ep *uep = usbhsh_ep_to_uep(urb->ep); |
880 | struct usbhs_pipe *pipe = usbhsh_uep_to_pipe(uep); | |
034d7c13 | 881 | struct device *dev = usbhsh_hcd_to_dev(hcd); |
ee8a0bf5 | 882 | int ret; |
034d7c13 KM |
883 | |
884 | dev_dbg(dev, "%s\n", __func__); | |
885 | ||
886 | /* | |
887 | * setup stage | |
888 | * | |
889 | * usbhsh_send_setup_stage_packet() wait SACK/SIGN | |
890 | */ | |
891 | usbhsh_setup_stage_packet_push(hpriv, urb, pipe); | |
892 | ||
893 | /* | |
894 | * data stage | |
895 | * | |
896 | * It is pushed only when urb has buffer. | |
897 | */ | |
ee8a0bf5 KM |
898 | if (urb->transfer_buffer_length) { |
899 | ret = usbhsh_data_stage_packet_push(hpriv, urb, pipe, mflags); | |
900 | if (ret < 0) { | |
901 | dev_err(dev, "data stage failed\n"); | |
902 | return ret; | |
903 | } | |
904 | } | |
034d7c13 KM |
905 | |
906 | /* | |
907 | * status stage | |
908 | */ | |
ee8a0bf5 KM |
909 | ret = usbhsh_status_stage_packet_push(hpriv, urb, pipe, mflags); |
910 | if (ret < 0) { | |
911 | dev_err(dev, "status stage failed\n"); | |
912 | return ret; | |
913 | } | |
034d7c13 KM |
914 | |
915 | /* | |
916 | * start pushed packets | |
917 | */ | |
918 | usbhs_pkt_start(pipe); | |
919 | ||
920 | return 0; | |
921 | } | |
922 | ||
923 | /* | |
924 | * dma map functions | |
925 | */ | |
c3cdcac7 YS |
926 | static int usbhsh_dma_map_ctrl(struct device *dma_dev, struct usbhs_pkt *pkt, |
927 | int map) | |
034d7c13 | 928 | { |
87c2905f KM |
929 | if (map) { |
930 | struct usbhsh_request *ureq = usbhsh_pkt_to_ureq(pkt); | |
931 | struct urb *urb = ureq->urb; | |
932 | ||
933 | /* it can not use scatter/gather */ | |
934 | if (urb->num_sgs) | |
935 | return -EINVAL; | |
936 | ||
937 | pkt->dma = urb->transfer_dma; | |
938 | if (!pkt->dma) | |
939 | return -EINVAL; | |
940 | } | |
941 | ||
034d7c13 KM |
942 | return 0; |
943 | } | |
944 | ||
945 | /* | |
946 | * for hc_driver | |
947 | */ | |
948 | static int usbhsh_host_start(struct usb_hcd *hcd) | |
949 | { | |
950 | return 0; | |
951 | } | |
952 | ||
953 | static void usbhsh_host_stop(struct usb_hcd *hcd) | |
954 | { | |
955 | } | |
956 | ||
957 | static int usbhsh_urb_enqueue(struct usb_hcd *hcd, | |
958 | struct urb *urb, | |
959 | gfp_t mem_flags) | |
960 | { | |
961 | struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); | |
962 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
963 | struct device *dev = usbhs_priv_to_dev(priv); | |
034d7c13 | 964 | struct usb_host_endpoint *ep = urb->ep; |
7aac8d15 | 965 | struct usbhsh_device *new_udev = NULL; |
73ef635a | 966 | int is_dir_in = usb_pipein(urb->pipe); |
034d7c13 KM |
967 | int ret; |
968 | ||
73ef635a | 969 | dev_dbg(dev, "%s (%s)\n", __func__, is_dir_in ? "in" : "out"); |
034d7c13 | 970 | |
b1930da0 KM |
971 | if (!usbhsh_is_running(hpriv)) { |
972 | ret = -EIO; | |
15a3838b | 973 | dev_err(dev, "host is not running\n"); |
b1930da0 KM |
974 | goto usbhsh_urb_enqueue_error_not_linked; |
975 | } | |
976 | ||
034d7c13 | 977 | ret = usb_hcd_link_urb_to_ep(hcd, urb); |
15a3838b KM |
978 | if (ret) { |
979 | dev_err(dev, "urb link failed\n"); | |
034d7c13 | 980 | goto usbhsh_urb_enqueue_error_not_linked; |
15a3838b | 981 | } |
034d7c13 KM |
982 | |
983 | /* | |
7aac8d15 | 984 | * attach udev if needed |
e5679d07 | 985 | * see [image of mod_host] |
034d7c13 | 986 | */ |
c1e4877a | 987 | if (!usbhsh_device_get(hpriv, urb)) { |
7aac8d15 | 988 | new_udev = usbhsh_device_attach(hpriv, urb); |
37332ee0 KM |
989 | if (!new_udev) { |
990 | ret = -EIO; | |
15a3838b | 991 | dev_err(dev, "device attach failed\n"); |
034d7c13 | 992 | goto usbhsh_urb_enqueue_error_not_linked; |
37332ee0 | 993 | } |
034d7c13 KM |
994 | } |
995 | ||
996 | /* | |
4825093e | 997 | * attach endpoint if needed |
e5679d07 | 998 | * see [image of mod_host] |
034d7c13 | 999 | */ |
4825093e KM |
1000 | if (!usbhsh_ep_to_uep(ep)) { |
1001 | ret = usbhsh_endpoint_attach(hpriv, urb, mem_flags); | |
15a3838b KM |
1002 | if (ret < 0) { |
1003 | dev_err(dev, "endpoint attach failed\n"); | |
034d7c13 | 1004 | goto usbhsh_urb_enqueue_error_free_device; |
15a3838b | 1005 | } |
034d7c13 | 1006 | } |
034d7c13 KM |
1007 | |
1008 | /* | |
e5679d07 KM |
1009 | * attach pipe to endpoint |
1010 | * see [image of mod_host] | |
034d7c13 | 1011 | */ |
7b332e5f | 1012 | ret = usbhsh_pipe_attach(hpriv, urb); |
15a3838b KM |
1013 | if (ret < 0) { |
1014 | dev_err(dev, "pipe attach failed\n"); | |
034d7c13 KM |
1015 | goto usbhsh_urb_enqueue_error_free_endpoint; |
1016 | } | |
034d7c13 KM |
1017 | |
1018 | /* | |
1019 | * push packet | |
1020 | */ | |
1021 | if (usb_pipecontrol(urb->pipe)) | |
3eddc9e4 | 1022 | ret = usbhsh_dcp_queue_push(hcd, urb, mem_flags); |
034d7c13 | 1023 | else |
3eddc9e4 | 1024 | ret = usbhsh_queue_push(hcd, urb, mem_flags); |
034d7c13 | 1025 | |
ee8a0bf5 | 1026 | return ret; |
034d7c13 KM |
1027 | |
1028 | usbhsh_urb_enqueue_error_free_endpoint: | |
e5679d07 | 1029 | usbhsh_endpoint_detach(hpriv, ep); |
034d7c13 KM |
1030 | usbhsh_urb_enqueue_error_free_device: |
1031 | if (new_udev) | |
7aac8d15 | 1032 | usbhsh_device_detach(hpriv, new_udev); |
034d7c13 KM |
1033 | usbhsh_urb_enqueue_error_not_linked: |
1034 | ||
1035 | dev_dbg(dev, "%s error\n", __func__); | |
1036 | ||
1037 | return ret; | |
1038 | } | |
1039 | ||
1040 | static int usbhsh_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) | |
1041 | { | |
1042 | struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); | |
1043 | struct usbhsh_request *ureq = usbhsh_urb_to_ureq(urb); | |
1044 | ||
1045 | if (ureq) { | |
54796543 KM |
1046 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
1047 | struct usbhs_pkt *pkt = &ureq->pkt; | |
1048 | ||
1049 | usbhs_pkt_pop(pkt->pipe, pkt); | |
1050 | usbhsh_queue_done(priv, pkt); | |
034d7c13 KM |
1051 | } |
1052 | ||
1053 | return 0; | |
1054 | } | |
1055 | ||
1056 | static void usbhsh_endpoint_disable(struct usb_hcd *hcd, | |
1057 | struct usb_host_endpoint *ep) | |
1058 | { | |
1059 | struct usbhsh_ep *uep = usbhsh_ep_to_uep(ep); | |
1060 | struct usbhsh_device *udev; | |
1061 | struct usbhsh_hpriv *hpriv; | |
1062 | ||
1063 | /* | |
1064 | * this function might be called manytimes by same hcd/ep | |
fca8ab7e | 1065 | * in-endpoint == out-endpoint if ep == dcp. |
034d7c13 KM |
1066 | */ |
1067 | if (!uep) | |
1068 | return; | |
1069 | ||
1070 | udev = usbhsh_uep_to_udev(uep); | |
1071 | hpriv = usbhsh_hcd_to_hpriv(hcd); | |
1072 | ||
4825093e | 1073 | usbhsh_endpoint_detach(hpriv, ep); |
034d7c13 KM |
1074 | |
1075 | /* | |
1076 | * if there is no endpoint, | |
1077 | * free device | |
1078 | */ | |
1079 | if (!usbhsh_device_has_endpoint(udev)) | |
7aac8d15 | 1080 | usbhsh_device_detach(hpriv, udev); |
034d7c13 KM |
1081 | } |
1082 | ||
1083 | static int usbhsh_hub_status_data(struct usb_hcd *hcd, char *buf) | |
1084 | { | |
1085 | struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); | |
034d7c13 KM |
1086 | int roothub_id = 1; /* only 1 root hub */ |
1087 | ||
1088 | /* | |
1089 | * does port stat was changed ? | |
1090 | * check USB_PORT_STAT_C_xxx << 16 | |
1091 | */ | |
1092 | if (usbhsh_port_stat_get(hpriv) & 0xFFFF0000) | |
1093 | *buf = (1 << roothub_id); | |
1094 | else | |
1095 | *buf = 0; | |
1096 | ||
034d7c13 KM |
1097 | return !!(*buf); |
1098 | } | |
1099 | ||
1100 | static int __usbhsh_hub_hub_feature(struct usbhsh_hpriv *hpriv, | |
1101 | u16 typeReq, u16 wValue, | |
1102 | u16 wIndex, char *buf, u16 wLength) | |
1103 | { | |
1104 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
1105 | struct device *dev = usbhs_priv_to_dev(priv); | |
1106 | ||
1107 | switch (wValue) { | |
1108 | case C_HUB_OVER_CURRENT: | |
1109 | case C_HUB_LOCAL_POWER: | |
1110 | dev_dbg(dev, "%s :: C_HUB_xx\n", __func__); | |
1111 | return 0; | |
1112 | } | |
1113 | ||
1114 | return -EPIPE; | |
1115 | } | |
1116 | ||
1117 | static int __usbhsh_hub_port_feature(struct usbhsh_hpriv *hpriv, | |
1118 | u16 typeReq, u16 wValue, | |
1119 | u16 wIndex, char *buf, u16 wLength) | |
1120 | { | |
1121 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
1122 | struct device *dev = usbhs_priv_to_dev(priv); | |
1123 | int enable = (typeReq == SetPortFeature); | |
1124 | int speed, i, timeout = 128; | |
1125 | int roothub_id = 1; /* only 1 root hub */ | |
1126 | ||
1127 | /* common error */ | |
1128 | if (wIndex > roothub_id || wLength != 0) | |
1129 | return -EPIPE; | |
1130 | ||
1131 | /* check wValue */ | |
1132 | switch (wValue) { | |
1133 | case USB_PORT_FEAT_POWER: | |
1134 | usbhs_vbus_ctrl(priv, enable); | |
1135 | dev_dbg(dev, "%s :: USB_PORT_FEAT_POWER\n", __func__); | |
1136 | break; | |
1137 | ||
1138 | case USB_PORT_FEAT_ENABLE: | |
1139 | case USB_PORT_FEAT_SUSPEND: | |
1140 | case USB_PORT_FEAT_C_ENABLE: | |
1141 | case USB_PORT_FEAT_C_SUSPEND: | |
1142 | case USB_PORT_FEAT_C_CONNECTION: | |
1143 | case USB_PORT_FEAT_C_OVER_CURRENT: | |
1144 | case USB_PORT_FEAT_C_RESET: | |
1145 | dev_dbg(dev, "%s :: USB_PORT_FEAT_xxx\n", __func__); | |
1146 | break; | |
1147 | ||
1148 | case USB_PORT_FEAT_RESET: | |
1149 | if (!enable) | |
1150 | break; | |
1151 | ||
1152 | usbhsh_port_stat_clear(hpriv, | |
1153 | USB_PORT_STAT_HIGH_SPEED | | |
1154 | USB_PORT_STAT_LOW_SPEED); | |
1155 | ||
2d833faa KM |
1156 | usbhsh_queue_force_pop_all(priv); |
1157 | ||
034d7c13 KM |
1158 | usbhs_bus_send_reset(priv); |
1159 | msleep(20); | |
1160 | usbhs_bus_send_sof_enable(priv); | |
1161 | ||
1162 | for (i = 0; i < timeout ; i++) { | |
1163 | switch (usbhs_bus_get_speed(priv)) { | |
1164 | case USB_SPEED_LOW: | |
1165 | speed = USB_PORT_STAT_LOW_SPEED; | |
1166 | goto got_usb_bus_speed; | |
1167 | case USB_SPEED_HIGH: | |
1168 | speed = USB_PORT_STAT_HIGH_SPEED; | |
1169 | goto got_usb_bus_speed; | |
1170 | case USB_SPEED_FULL: | |
1171 | speed = 0; | |
1172 | goto got_usb_bus_speed; | |
1173 | } | |
1174 | ||
1175 | msleep(20); | |
1176 | } | |
1177 | return -EPIPE; | |
1178 | ||
1179 | got_usb_bus_speed: | |
1180 | usbhsh_port_stat_set(hpriv, speed); | |
1181 | usbhsh_port_stat_set(hpriv, USB_PORT_STAT_ENABLE); | |
1182 | ||
1183 | dev_dbg(dev, "%s :: USB_PORT_FEAT_RESET (speed = %d)\n", | |
1184 | __func__, speed); | |
1185 | ||
1186 | /* status change is not needed */ | |
1187 | return 0; | |
1188 | ||
1189 | default: | |
1190 | return -EPIPE; | |
1191 | } | |
1192 | ||
1193 | /* set/clear status */ | |
1194 | if (enable) | |
1195 | usbhsh_port_stat_set(hpriv, (1 << wValue)); | |
1196 | else | |
1197 | usbhsh_port_stat_clear(hpriv, (1 << wValue)); | |
1198 | ||
1199 | return 0; | |
1200 | } | |
1201 | ||
1202 | static int __usbhsh_hub_get_status(struct usbhsh_hpriv *hpriv, | |
1203 | u16 typeReq, u16 wValue, | |
1204 | u16 wIndex, char *buf, u16 wLength) | |
1205 | { | |
1206 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
1207 | struct usb_hub_descriptor *desc = (struct usb_hub_descriptor *)buf; | |
1208 | struct device *dev = usbhs_priv_to_dev(priv); | |
1209 | int roothub_id = 1; /* only 1 root hub */ | |
1210 | ||
1211 | switch (typeReq) { | |
1212 | case GetHubStatus: | |
1213 | dev_dbg(dev, "%s :: GetHubStatus\n", __func__); | |
1214 | ||
1215 | *buf = 0x00; | |
1216 | break; | |
1217 | ||
1218 | case GetPortStatus: | |
1219 | if (wIndex != roothub_id) | |
1220 | return -EPIPE; | |
1221 | ||
1222 | dev_dbg(dev, "%s :: GetPortStatus\n", __func__); | |
1223 | *(__le32 *)buf = cpu_to_le32(usbhsh_port_stat_get(hpriv)); | |
1224 | break; | |
1225 | ||
1226 | case GetHubDescriptor: | |
b11373de | 1227 | desc->bDescriptorType = USB_DT_HUB; |
034d7c13 KM |
1228 | desc->bHubContrCurrent = 0; |
1229 | desc->bNbrPorts = roothub_id; | |
1230 | desc->bDescLength = 9; | |
1231 | desc->bPwrOn2PwrGood = 0; | |
a1837d15 SS |
1232 | desc->wHubCharacteristics = |
1233 | cpu_to_le16(HUB_CHAR_INDV_PORT_LPSM | HUB_CHAR_NO_OCPM); | |
034d7c13 KM |
1234 | desc->u.hs.DeviceRemovable[0] = (roothub_id << 1); |
1235 | desc->u.hs.DeviceRemovable[1] = ~0; | |
1236 | dev_dbg(dev, "%s :: GetHubDescriptor\n", __func__); | |
1237 | break; | |
1238 | } | |
1239 | ||
1240 | return 0; | |
1241 | } | |
1242 | ||
1243 | static int usbhsh_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, | |
1244 | u16 wIndex, char *buf, u16 wLength) | |
1245 | { | |
1246 | struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); | |
1247 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); | |
1248 | struct device *dev = usbhs_priv_to_dev(priv); | |
1249 | int ret = -EPIPE; | |
1250 | ||
1251 | switch (typeReq) { | |
1252 | ||
1253 | /* Hub Feature */ | |
1254 | case ClearHubFeature: | |
1255 | case SetHubFeature: | |
1256 | ret = __usbhsh_hub_hub_feature(hpriv, typeReq, | |
1257 | wValue, wIndex, buf, wLength); | |
1258 | break; | |
1259 | ||
1260 | /* Port Feature */ | |
1261 | case SetPortFeature: | |
1262 | case ClearPortFeature: | |
1263 | ret = __usbhsh_hub_port_feature(hpriv, typeReq, | |
1264 | wValue, wIndex, buf, wLength); | |
1265 | break; | |
1266 | ||
1267 | /* Get status */ | |
1268 | case GetHubStatus: | |
1269 | case GetPortStatus: | |
1270 | case GetHubDescriptor: | |
1271 | ret = __usbhsh_hub_get_status(hpriv, typeReq, | |
1272 | wValue, wIndex, buf, wLength); | |
1273 | break; | |
1274 | } | |
1275 | ||
1276 | dev_dbg(dev, "typeReq = %x, ret = %d, port_stat = %x\n", | |
1277 | typeReq, ret, usbhsh_port_stat_get(hpriv)); | |
1278 | ||
1279 | return ret; | |
1280 | } | |
1281 | ||
e7ae64c7 KM |
1282 | static int usbhsh_bus_nop(struct usb_hcd *hcd) |
1283 | { | |
1284 | /* nothing to do */ | |
1285 | return 0; | |
1286 | } | |
1287 | ||
034d7c13 KM |
1288 | static struct hc_driver usbhsh_driver = { |
1289 | .description = usbhsh_hcd_name, | |
1290 | .hcd_priv_size = sizeof(struct usbhsh_hpriv), | |
1291 | ||
1292 | /* | |
1293 | * generic hardware linkage | |
1294 | */ | |
1295 | .flags = HCD_USB2, | |
1296 | ||
1297 | .start = usbhsh_host_start, | |
1298 | .stop = usbhsh_host_stop, | |
1299 | ||
1300 | /* | |
1301 | * managing i/o requests and associated device resources | |
1302 | */ | |
1303 | .urb_enqueue = usbhsh_urb_enqueue, | |
1304 | .urb_dequeue = usbhsh_urb_dequeue, | |
1305 | .endpoint_disable = usbhsh_endpoint_disable, | |
1306 | ||
1307 | /* | |
1308 | * root hub | |
1309 | */ | |
1310 | .hub_status_data = usbhsh_hub_status_data, | |
1311 | .hub_control = usbhsh_hub_control, | |
e7ae64c7 KM |
1312 | .bus_suspend = usbhsh_bus_nop, |
1313 | .bus_resume = usbhsh_bus_nop, | |
034d7c13 KM |
1314 | }; |
1315 | ||
1316 | /* | |
1317 | * interrupt functions | |
1318 | */ | |
1319 | static int usbhsh_irq_attch(struct usbhs_priv *priv, | |
1320 | struct usbhs_irq_state *irq_state) | |
1321 | { | |
1322 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); | |
1323 | struct device *dev = usbhs_priv_to_dev(priv); | |
1324 | ||
1325 | dev_dbg(dev, "device attached\n"); | |
1326 | ||
1327 | usbhsh_port_stat_set(hpriv, USB_PORT_STAT_CONNECTION); | |
1328 | usbhsh_port_stat_set(hpriv, USB_PORT_STAT_C_CONNECTION << 16); | |
1329 | ||
31e00fd1 KM |
1330 | /* |
1331 | * attch interrupt might happen infinitely on some device | |
1332 | * (on self power USB hub ?) | |
1333 | * disable it here. | |
b1930da0 KM |
1334 | * |
1335 | * usbhsh_is_running() becomes effective | |
1336 | * according to this process. | |
1337 | * see | |
1338 | * usbhsh_is_running() | |
1339 | * usbhsh_urb_enqueue() | |
31e00fd1 KM |
1340 | */ |
1341 | hpriv->mod.irq_attch = NULL; | |
1342 | usbhs_irq_callback_update(priv, &hpriv->mod); | |
1343 | ||
034d7c13 KM |
1344 | return 0; |
1345 | } | |
1346 | ||
1347 | static int usbhsh_irq_dtch(struct usbhs_priv *priv, | |
1348 | struct usbhs_irq_state *irq_state) | |
1349 | { | |
1350 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); | |
1351 | struct device *dev = usbhs_priv_to_dev(priv); | |
1352 | ||
1353 | dev_dbg(dev, "device detached\n"); | |
1354 | ||
1355 | usbhsh_port_stat_clear(hpriv, USB_PORT_STAT_CONNECTION); | |
1356 | usbhsh_port_stat_set(hpriv, USB_PORT_STAT_C_CONNECTION << 16); | |
1357 | ||
31e00fd1 KM |
1358 | /* |
1359 | * enable attch interrupt again | |
b1930da0 KM |
1360 | * |
1361 | * usbhsh_is_running() becomes invalid | |
1362 | * according to this process. | |
1363 | * see | |
1364 | * usbhsh_is_running() | |
1365 | * usbhsh_urb_enqueue() | |
31e00fd1 KM |
1366 | */ |
1367 | hpriv->mod.irq_attch = usbhsh_irq_attch; | |
1368 | usbhs_irq_callback_update(priv, &hpriv->mod); | |
1369 | ||
2d833faa KM |
1370 | /* |
1371 | * usbhsh_queue_force_pop_all() should be called | |
1372 | * after usbhsh_is_running() becomes invalid. | |
1373 | */ | |
1374 | usbhsh_queue_force_pop_all(priv); | |
1375 | ||
034d7c13 KM |
1376 | return 0; |
1377 | } | |
1378 | ||
1379 | static int usbhsh_irq_setup_ack(struct usbhs_priv *priv, | |
1380 | struct usbhs_irq_state *irq_state) | |
1381 | { | |
1382 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); | |
1383 | struct device *dev = usbhs_priv_to_dev(priv); | |
1384 | ||
1385 | dev_dbg(dev, "setup packet OK\n"); | |
1386 | ||
7fccd480 | 1387 | complete(&hpriv->setup_ack_done); /* see usbhsh_urb_enqueue() */ |
034d7c13 KM |
1388 | |
1389 | return 0; | |
1390 | } | |
1391 | ||
1392 | static int usbhsh_irq_setup_err(struct usbhs_priv *priv, | |
1393 | struct usbhs_irq_state *irq_state) | |
1394 | { | |
1395 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); | |
1396 | struct device *dev = usbhs_priv_to_dev(priv); | |
1397 | ||
1398 | dev_dbg(dev, "setup packet Err\n"); | |
1399 | ||
7fccd480 | 1400 | complete(&hpriv->setup_ack_done); /* see usbhsh_urb_enqueue() */ |
034d7c13 KM |
1401 | |
1402 | return 0; | |
1403 | } | |
1404 | ||
1405 | /* | |
1406 | * module start/stop | |
1407 | */ | |
1408 | static void usbhsh_pipe_init_for_host(struct usbhs_priv *priv) | |
1409 | { | |
1410 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); | |
034d7c13 | 1411 | struct usbhs_pipe *pipe; |
51f141a9 YS |
1412 | struct renesas_usbhs_driver_pipe_config *pipe_configs = |
1413 | usbhs_get_dparam(priv, pipe_configs); | |
034d7c13 KM |
1414 | int pipe_size = usbhs_get_dparam(priv, pipe_size); |
1415 | int old_type, dir_in, i; | |
1416 | ||
1417 | /* init all pipe */ | |
1418 | old_type = USB_ENDPOINT_XFER_CONTROL; | |
1419 | for (i = 0; i < pipe_size; i++) { | |
034d7c13 KM |
1420 | |
1421 | /* | |
1422 | * data "output" will be finished as soon as possible, | |
1423 | * but there is no guaranty at data "input" case. | |
1424 | * | |
1425 | * "input" needs "standby" pipe. | |
1426 | * So, "input" direction pipe > "output" direction pipe | |
1427 | * is good idea. | |
1428 | * | |
1429 | * 1st USB_ENDPOINT_XFER_xxx will be output direction, | |
1430 | * and the other will be input direction here. | |
1431 | * | |
1432 | * ex) | |
1433 | * ... | |
1434 | * USB_ENDPOINT_XFER_ISOC -> dir out | |
1435 | * USB_ENDPOINT_XFER_ISOC -> dir in | |
1436 | * USB_ENDPOINT_XFER_BULK -> dir out | |
1437 | * USB_ENDPOINT_XFER_BULK -> dir in | |
1438 | * USB_ENDPOINT_XFER_BULK -> dir in | |
1439 | * ... | |
1440 | */ | |
51f141a9 YS |
1441 | dir_in = (pipe_configs[i].type == old_type); |
1442 | old_type = pipe_configs[i].type; | |
034d7c13 | 1443 | |
51f141a9 | 1444 | if (USB_ENDPOINT_XFER_CONTROL == pipe_configs[i].type) { |
034d7c13 KM |
1445 | pipe = usbhs_dcp_malloc(priv); |
1446 | usbhsh_hpriv_to_dcp(hpriv) = pipe; | |
1447 | } else { | |
1448 | pipe = usbhs_pipe_malloc(priv, | |
51f141a9 | 1449 | pipe_configs[i].type, |
034d7c13 KM |
1450 | dir_in); |
1451 | } | |
1452 | ||
e5679d07 | 1453 | pipe->mod_private = NULL; |
034d7c13 KM |
1454 | } |
1455 | } | |
1456 | ||
1457 | static int usbhsh_start(struct usbhs_priv *priv) | |
1458 | { | |
1459 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); | |
1460 | struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); | |
1461 | struct usbhs_mod *mod = usbhs_mod_get_current(priv); | |
1462 | struct device *dev = usbhs_priv_to_dev(priv); | |
1463 | int ret; | |
1464 | ||
1465 | /* add hcd */ | |
1466 | ret = usb_add_hcd(hcd, 0, 0); | |
1467 | if (ret < 0) | |
1468 | return 0; | |
3c9740a1 | 1469 | device_wakeup_enable(hcd->self.controller); |
034d7c13 KM |
1470 | |
1471 | /* | |
1472 | * pipe initialize and enable DCP | |
1473 | */ | |
cdeb7943 | 1474 | usbhs_fifo_init(priv); |
034d7c13 KM |
1475 | usbhs_pipe_init(priv, |
1476 | usbhsh_dma_map_ctrl); | |
034d7c13 KM |
1477 | usbhsh_pipe_init_for_host(priv); |
1478 | ||
1479 | /* | |
1480 | * system config enble | |
1481 | * - HI speed | |
1482 | * - host | |
1483 | * - usb module | |
1484 | */ | |
034d7c13 | 1485 | usbhs_sys_host_ctrl(priv, 1); |
034d7c13 KM |
1486 | |
1487 | /* | |
1488 | * enable irq callback | |
1489 | */ | |
1490 | mod->irq_attch = usbhsh_irq_attch; | |
1491 | mod->irq_dtch = usbhsh_irq_dtch; | |
1492 | mod->irq_sack = usbhsh_irq_setup_ack; | |
1493 | mod->irq_sign = usbhsh_irq_setup_err; | |
1494 | usbhs_irq_callback_update(priv, mod); | |
1495 | ||
1496 | dev_dbg(dev, "start host\n"); | |
1497 | ||
1498 | return ret; | |
1499 | } | |
1500 | ||
1501 | static int usbhsh_stop(struct usbhs_priv *priv) | |
1502 | { | |
1503 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); | |
1504 | struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); | |
146ee50a | 1505 | struct usbhs_mod *mod = usbhs_mod_get_current(priv); |
034d7c13 KM |
1506 | struct device *dev = usbhs_priv_to_dev(priv); |
1507 | ||
146ee50a KM |
1508 | /* |
1509 | * disable irq callback | |
1510 | */ | |
1511 | mod->irq_attch = NULL; | |
1512 | mod->irq_dtch = NULL; | |
1513 | mod->irq_sack = NULL; | |
1514 | mod->irq_sign = NULL; | |
1515 | usbhs_irq_callback_update(priv, mod); | |
1516 | ||
034d7c13 KM |
1517 | usb_remove_hcd(hcd); |
1518 | ||
1519 | /* disable sys */ | |
034d7c13 | 1520 | usbhs_sys_host_ctrl(priv, 0); |
034d7c13 KM |
1521 | |
1522 | dev_dbg(dev, "quit host\n"); | |
1523 | ||
1524 | return 0; | |
1525 | } | |
1526 | ||
b7a8d17d | 1527 | int usbhs_mod_host_probe(struct usbhs_priv *priv) |
034d7c13 KM |
1528 | { |
1529 | struct usbhsh_hpriv *hpriv; | |
1530 | struct usb_hcd *hcd; | |
034d7c13 KM |
1531 | struct usbhsh_device *udev; |
1532 | struct device *dev = usbhs_priv_to_dev(priv); | |
034d7c13 KM |
1533 | int i; |
1534 | ||
1535 | /* initialize hcd */ | |
1536 | hcd = usb_create_hcd(&usbhsh_driver, dev, usbhsh_hcd_name); | |
1537 | if (!hcd) { | |
1538 | dev_err(dev, "Failed to create hcd\n"); | |
1539 | return -ENOMEM; | |
1540 | } | |
1115b9e2 | 1541 | hcd->has_tt = 1; /* for low/full speed */ |
034d7c13 | 1542 | |
034d7c13 KM |
1543 | /* |
1544 | * CAUTION | |
1545 | * | |
1546 | * There is no guarantee that it is possible to access usb module here. | |
1547 | * Don't accesses to it. | |
1548 | * The accesse will be enable after "usbhsh_start" | |
1549 | */ | |
1550 | ||
1551 | hpriv = usbhsh_hcd_to_hpriv(hcd); | |
1552 | ||
1553 | /* | |
1554 | * register itself | |
1555 | */ | |
1556 | usbhs_mod_register(priv, &hpriv->mod, USBHS_HOST); | |
1557 | ||
1558 | /* init hpriv */ | |
1559 | hpriv->mod.name = "host"; | |
1560 | hpriv->mod.start = usbhsh_start; | |
1561 | hpriv->mod.stop = usbhsh_stop; | |
034d7c13 KM |
1562 | usbhsh_port_stat_init(hpriv); |
1563 | ||
1564 | /* init all device */ | |
1565 | usbhsh_for_each_udev_with_dev0(udev, hpriv, i) { | |
1566 | udev->usbv = NULL; | |
1567 | INIT_LIST_HEAD(&udev->ep_list_head); | |
1568 | } | |
1569 | ||
1570 | dev_info(dev, "host probed\n"); | |
1571 | ||
1572 | return 0; | |
034d7c13 KM |
1573 | } |
1574 | ||
b7a8d17d | 1575 | int usbhs_mod_host_remove(struct usbhs_priv *priv) |
034d7c13 KM |
1576 | { |
1577 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); | |
1578 | struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); | |
1579 | ||
034d7c13 KM |
1580 | usb_put_hcd(hcd); |
1581 | ||
1582 | return 0; | |
1583 | } |