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d774efea TO |
1 | /* |
2 | * Host Controller Driver for the Elan Digital Systems U132 adapter | |
3 | * | |
4 | * Copyright(C) 2006 Elan Digital Systems Limited | |
5 | * http://www.elandigitalsystems.com | |
6 | * | |
7 | * Author and Maintainer - Tony Olech - Elan Digital Systems | |
8 | * tony.olech@elandigitalsystems.com | |
9 | * | |
10 | * This program is free software;you can redistribute it and/or | |
11 | * modify it under the terms of the GNU General Public License as | |
12 | * published by the Free Software Foundation, version 2. | |
13 | * | |
14 | * | |
15 | * This driver was written by Tony Olech(tony.olech@elandigitalsystems.com) | |
16 | * based on various USB host drivers in the 2.6.15 linux kernel | |
17 | * with constant reference to the 3rd Edition of Linux Device Drivers | |
18 | * published by O'Reilly | |
19 | * | |
20 | * The U132 adapter is a USB to CardBus adapter specifically designed | |
21 | * for PC cards that contain an OHCI host controller. Typical PC cards | |
22 | * are the Orange Mobile 3G Option GlobeTrotter Fusion card. | |
23 | * | |
24 | * The U132 adapter will *NOT *work with PC cards that do not contain | |
25 | * an OHCI controller. A simple way to test whether a PC card has an | |
26 | * OHCI controller as an interface is to insert the PC card directly | |
27 | * into a laptop(or desktop) with a CardBus slot and if "lspci" shows | |
28 | * a new USB controller and "lsusb -v" shows a new OHCI Host Controller | |
29 | * then there is a good chance that the U132 adapter will support the | |
30 | * PC card.(you also need the specific client driver for the PC card) | |
31 | * | |
32 | * Please inform the Author and Maintainer about any PC cards that | |
33 | * contain OHCI Host Controller and work when directly connected to | |
34 | * an embedded CardBus slot but do not work when they are connected | |
35 | * via an ELAN U132 adapter. | |
36 | * | |
37 | */ | |
d774efea TO |
38 | #include <linux/kernel.h> |
39 | #include <linux/module.h> | |
40 | #include <linux/moduleparam.h> | |
41 | #include <linux/delay.h> | |
42 | #include <linux/ioport.h> | |
43 | #include <linux/sched.h> | |
44 | #include <linux/slab.h> | |
45 | #include <linux/smp_lock.h> | |
46 | #include <linux/errno.h> | |
47 | #include <linux/init.h> | |
48 | #include <linux/timer.h> | |
49 | #include <linux/list.h> | |
50 | #include <linux/interrupt.h> | |
51 | #include <linux/usb.h> | |
52 | #include <linux/workqueue.h> | |
53 | #include <linux/platform_device.h> | |
54 | #include <linux/pci_ids.h> | |
55 | #include <asm/io.h> | |
56 | #include <asm/irq.h> | |
57 | #include <asm/system.h> | |
58 | #include <asm/byteorder.h> | |
59 | #include "../core/hcd.h" | |
60 | #include "ohci.h" | |
61 | #define OHCI_CONTROL_INIT OHCI_CTRL_CBSR | |
62 | #define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \ | |
63 | OHCI_INTR_WDH) | |
64 | MODULE_AUTHOR("Tony Olech - Elan Digital Systems Limited"); | |
65 | MODULE_DESCRIPTION("U132 USB Host Controller Driver"); | |
66 | MODULE_LICENSE("GPL"); | |
67 | #define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444) | |
68 | INT_MODULE_PARM(testing, 0); | |
69 | /* Some boards misreport power switching/overcurrent*/ | |
70 | static int distrust_firmware = 1; | |
71 | module_param(distrust_firmware, bool, 0); | |
72 | MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren" | |
73 | "t setup"); | |
74 | DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait); | |
75 | /* | |
76 | * u132_module_lock exists to protect access to global variables | |
77 | * | |
78 | */ | |
79 | static struct semaphore u132_module_lock; | |
80 | static int u132_exiting = 0; | |
81 | static int u132_instances = 0; | |
82 | static struct list_head u132_static_list; | |
83 | /* | |
84 | * end of the global variables protected by u132_module_lock | |
85 | */ | |
86 | static struct workqueue_struct *workqueue; | |
87 | #define MAX_U132_PORTS 7 | |
88 | #define MAX_U132_ADDRS 128 | |
89 | #define MAX_U132_UDEVS 4 | |
90 | #define MAX_U132_ENDPS 100 | |
91 | #define MAX_U132_RINGS 4 | |
92 | static const char *cc_to_text[16] = { | |
93 | "No Error ", | |
94 | "CRC Error ", | |
95 | "Bit Stuff ", | |
96 | "Data Togg ", | |
97 | "Stall ", | |
98 | "DevNotResp ", | |
99 | "PIDCheck ", | |
100 | "UnExpPID ", | |
101 | "DataOver ", | |
102 | "DataUnder ", | |
103 | "(for hw) ", | |
104 | "(for hw) ", | |
105 | "BufferOver ", | |
106 | "BuffUnder ", | |
107 | "(for HCD) ", | |
108 | "(for HCD) " | |
109 | }; | |
110 | struct u132_port { | |
111 | struct u132 *u132; | |
112 | int reset; | |
113 | int enable; | |
114 | int power; | |
115 | int Status; | |
116 | }; | |
117 | struct u132_addr { | |
118 | u8 address; | |
119 | }; | |
120 | struct u132_udev { | |
121 | struct kref kref; | |
122 | struct usb_device *usb_device; | |
123 | u8 enumeration; | |
124 | u8 udev_number; | |
125 | u8 usb_addr; | |
126 | u8 portnumber; | |
127 | u8 endp_number_in[16]; | |
128 | u8 endp_number_out[16]; | |
129 | }; | |
130 | #define ENDP_QUEUE_SHIFT 3 | |
131 | #define ENDP_QUEUE_SIZE (1<<ENDP_QUEUE_SHIFT) | |
132 | #define ENDP_QUEUE_MASK (ENDP_QUEUE_SIZE-1) | |
133 | struct u132_urbq { | |
134 | struct list_head urb_more; | |
135 | struct urb *urb; | |
136 | }; | |
137 | struct u132_spin { | |
138 | spinlock_t slock; | |
139 | }; | |
140 | struct u132_endp { | |
141 | struct kref kref; | |
142 | u8 udev_number; | |
143 | u8 endp_number; | |
144 | u8 usb_addr; | |
145 | u8 usb_endp; | |
146 | struct u132 *u132; | |
147 | struct list_head endp_ring; | |
148 | struct u132_ring *ring; | |
149 | unsigned toggle_bits:2; | |
150 | unsigned active:1; | |
151 | unsigned delayed:1; | |
152 | unsigned input:1; | |
153 | unsigned output:1; | |
154 | unsigned pipetype:2; | |
155 | unsigned dequeueing:1; | |
156 | unsigned edset_flush:1; | |
157 | unsigned spare_bits:14; | |
158 | unsigned long jiffies; | |
159 | struct usb_host_endpoint *hep; | |
160 | struct u132_spin queue_lock; | |
161 | u16 queue_size; | |
162 | u16 queue_last; | |
163 | u16 queue_next; | |
164 | struct urb *urb_list[ENDP_QUEUE_SIZE]; | |
165 | struct list_head urb_more; | |
c4028958 | 166 | struct delayed_work scheduler; |
d774efea TO |
167 | }; |
168 | struct u132_ring { | |
169 | unsigned in_use:1; | |
170 | unsigned length:7; | |
171 | u8 number; | |
172 | struct u132 *u132; | |
173 | struct u132_endp *curr_endp; | |
c4028958 | 174 | struct delayed_work scheduler; |
d774efea TO |
175 | }; |
176 | #define OHCI_QUIRK_AMD756 0x01 | |
177 | #define OHCI_QUIRK_SUPERIO 0x02 | |
178 | #define OHCI_QUIRK_INITRESET 0x04 | |
179 | #define OHCI_BIG_ENDIAN 0x08 | |
180 | #define OHCI_QUIRK_ZFMICRO 0x10 | |
181 | struct u132 { | |
182 | struct kref kref; | |
183 | struct list_head u132_list; | |
184 | struct semaphore sw_lock; | |
185 | struct semaphore scheduler_lock; | |
186 | struct u132_platform_data *board; | |
187 | struct platform_device *platform_dev; | |
188 | struct u132_ring ring[MAX_U132_RINGS]; | |
189 | int sequence_num; | |
190 | int going; | |
191 | int power; | |
192 | int reset; | |
193 | int num_ports; | |
194 | u32 hc_control; | |
195 | u32 hc_fminterval; | |
196 | u32 hc_roothub_status; | |
197 | u32 hc_roothub_a; | |
198 | u32 hc_roothub_portstatus[MAX_ROOT_PORTS]; | |
199 | int flags; | |
200 | unsigned long next_statechange; | |
c4028958 | 201 | struct delayed_work monitor; |
d774efea TO |
202 | int num_endpoints; |
203 | struct u132_addr addr[MAX_U132_ADDRS]; | |
204 | struct u132_udev udev[MAX_U132_UDEVS]; | |
205 | struct u132_port port[MAX_U132_PORTS]; | |
206 | struct u132_endp *endp[MAX_U132_ENDPS]; | |
207 | }; | |
208 | int usb_ftdi_elan_read_reg(struct platform_device *pdev, u32 *data); | |
209 | int usb_ftdi_elan_read_pcimem(struct platform_device *pdev, u8 addressofs, | |
210 | u8 width, u32 *data); | |
211 | int usb_ftdi_elan_write_pcimem(struct platform_device *pdev, u8 addressofs, | |
212 | u8 width, u32 data); | |
213 | /* | |
214 | * these can not be inlines because we need the structure offset!! | |
215 | * Does anyone have a better way????? | |
216 | */ | |
217 | #define u132_read_pcimem(u132, member, data) \ | |
218 | usb_ftdi_elan_read_pcimem(u132->platform_dev, offsetof(struct \ | |
219 | ohci_regs, member), 0, data); | |
220 | #define u132_write_pcimem(u132, member, data) \ | |
221 | usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \ | |
222 | ohci_regs, member), 0, data); | |
223 | #define u132_write_pcimem_byte(u132, member, data) \ | |
224 | usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \ | |
225 | ohci_regs, member), 0x0e, data); | |
226 | static inline struct u132 *udev_to_u132(struct u132_udev *udev) | |
227 | { | |
228 | u8 udev_number = udev->udev_number; | |
229 | return container_of(udev, struct u132, udev[udev_number]); | |
230 | } | |
231 | ||
232 | static inline struct u132 *hcd_to_u132(struct usb_hcd *hcd) | |
233 | { | |
234 | return (struct u132 *)(hcd->hcd_priv); | |
235 | } | |
236 | ||
237 | static inline struct usb_hcd *u132_to_hcd(struct u132 *u132) | |
238 | { | |
239 | return container_of((void *)u132, struct usb_hcd, hcd_priv); | |
240 | } | |
241 | ||
242 | static inline void u132_disable(struct u132 *u132) | |
243 | { | |
244 | u132_to_hcd(u132)->state = HC_STATE_HALT; | |
245 | } | |
246 | ||
247 | ||
248 | #define kref_to_u132(d) container_of(d, struct u132, kref) | |
249 | #define kref_to_u132_endp(d) container_of(d, struct u132_endp, kref) | |
250 | #define kref_to_u132_udev(d) container_of(d, struct u132_udev, kref) | |
251 | #include "../misc/usb_u132.h" | |
252 | static const char hcd_name[] = "u132_hcd"; | |
253 | #define PORT_C_MASK ((USB_PORT_STAT_C_CONNECTION | USB_PORT_STAT_C_ENABLE | \ | |
254 | USB_PORT_STAT_C_SUSPEND | USB_PORT_STAT_C_OVERCURRENT | \ | |
255 | USB_PORT_STAT_C_RESET) << 16) | |
256 | static void u132_hcd_delete(struct kref *kref) | |
257 | { | |
258 | struct u132 *u132 = kref_to_u132(kref); | |
259 | struct platform_device *pdev = u132->platform_dev; | |
260 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
261 | u132->going += 1; | |
262 | down(&u132_module_lock); | |
263 | list_del_init(&u132->u132_list); | |
264 | u132_instances -= 1; | |
265 | up(&u132_module_lock); | |
266 | dev_warn(&u132->platform_dev->dev, "FREEING the hcd=%p and thus the u13" | |
267 | "2=%p going=%d pdev=%p\n", hcd, u132, u132->going, pdev); | |
268 | usb_put_hcd(hcd); | |
269 | } | |
270 | ||
271 | static inline void u132_u132_put_kref(struct u132 *u132) | |
272 | { | |
273 | kref_put(&u132->kref, u132_hcd_delete); | |
274 | } | |
275 | ||
276 | static inline void u132_u132_init_kref(struct u132 *u132) | |
277 | { | |
278 | kref_init(&u132->kref); | |
279 | } | |
280 | ||
281 | static void u132_udev_delete(struct kref *kref) | |
282 | { | |
283 | struct u132_udev *udev = kref_to_u132_udev(kref); | |
284 | udev->udev_number = 0; | |
285 | udev->usb_device = NULL; | |
286 | udev->usb_addr = 0; | |
287 | udev->enumeration = 0; | |
288 | } | |
289 | ||
290 | static inline void u132_udev_put_kref(struct u132 *u132, struct u132_udev *udev) | |
291 | { | |
292 | kref_put(&udev->kref, u132_udev_delete); | |
293 | } | |
294 | ||
295 | static inline void u132_udev_get_kref(struct u132 *u132, struct u132_udev *udev) | |
296 | { | |
297 | kref_get(&udev->kref); | |
298 | } | |
299 | ||
300 | static inline void u132_udev_init_kref(struct u132 *u132, | |
301 | struct u132_udev *udev) | |
302 | { | |
303 | kref_init(&udev->kref); | |
304 | } | |
305 | ||
306 | static inline void u132_ring_put_kref(struct u132 *u132, struct u132_ring *ring) | |
307 | { | |
308 | kref_put(&u132->kref, u132_hcd_delete); | |
309 | } | |
310 | ||
311 | static void u132_ring_requeue_work(struct u132 *u132, struct u132_ring *ring, | |
312 | unsigned int delta) | |
313 | { | |
314 | if (delta > 0) { | |
315 | if (queue_delayed_work(workqueue, &ring->scheduler, delta)) | |
316 | return; | |
c4028958 | 317 | } else if (queue_delayed_work(workqueue, &ring->scheduler, 0)) |
d774efea TO |
318 | return; |
319 | kref_put(&u132->kref, u132_hcd_delete); | |
320 | return; | |
321 | } | |
322 | ||
323 | static void u132_ring_queue_work(struct u132 *u132, struct u132_ring *ring, | |
324 | unsigned int delta) | |
325 | { | |
326 | kref_get(&u132->kref); | |
327 | u132_ring_requeue_work(u132, ring, delta); | |
328 | return; | |
329 | } | |
330 | ||
331 | static void u132_ring_cancel_work(struct u132 *u132, struct u132_ring *ring) | |
332 | { | |
333 | if (cancel_delayed_work(&ring->scheduler)) { | |
334 | kref_put(&u132->kref, u132_hcd_delete); | |
335 | } | |
336 | } | |
337 | ||
338 | static void u132_endp_delete(struct kref *kref) | |
339 | { | |
340 | struct u132_endp *endp = kref_to_u132_endp(kref); | |
341 | struct u132 *u132 = endp->u132; | |
342 | u8 usb_addr = endp->usb_addr; | |
343 | u8 usb_endp = endp->usb_endp; | |
344 | u8 address = u132->addr[usb_addr].address; | |
345 | struct u132_udev *udev = &u132->udev[address]; | |
346 | u8 endp_number = endp->endp_number; | |
347 | struct usb_host_endpoint *hep = endp->hep; | |
348 | struct u132_ring *ring = endp->ring; | |
349 | struct list_head *head = &endp->endp_ring; | |
350 | ring->length -= 1; | |
351 | if (endp == ring->curr_endp) { | |
352 | if (list_empty(head)) { | |
353 | ring->curr_endp = NULL; | |
354 | list_del(head); | |
355 | } else { | |
356 | struct u132_endp *next_endp = list_entry(head->next, | |
357 | struct u132_endp, endp_ring); | |
358 | ring->curr_endp = next_endp; | |
359 | list_del(head); | |
360 | }} else | |
361 | list_del(head); | |
362 | if (endp->input) { | |
363 | udev->endp_number_in[usb_endp] = 0; | |
364 | u132_udev_put_kref(u132, udev); | |
365 | } | |
366 | if (endp->output) { | |
367 | udev->endp_number_out[usb_endp] = 0; | |
368 | u132_udev_put_kref(u132, udev); | |
369 | } | |
370 | u132->endp[endp_number - 1] = NULL; | |
371 | hep->hcpriv = NULL; | |
372 | kfree(endp); | |
373 | u132_u132_put_kref(u132); | |
374 | } | |
375 | ||
376 | static inline void u132_endp_put_kref(struct u132 *u132, struct u132_endp *endp) | |
377 | { | |
378 | kref_put(&endp->kref, u132_endp_delete); | |
379 | } | |
380 | ||
381 | static inline void u132_endp_get_kref(struct u132 *u132, struct u132_endp *endp) | |
382 | { | |
383 | kref_get(&endp->kref); | |
384 | } | |
385 | ||
386 | static inline void u132_endp_init_kref(struct u132 *u132, | |
387 | struct u132_endp *endp) | |
388 | { | |
389 | kref_init(&endp->kref); | |
390 | kref_get(&u132->kref); | |
391 | } | |
392 | ||
393 | static void u132_endp_queue_work(struct u132 *u132, struct u132_endp *endp, | |
394 | unsigned int delta) | |
395 | { | |
c4028958 DH |
396 | if (queue_delayed_work(workqueue, &endp->scheduler, delta)) |
397 | kref_get(&endp->kref); | |
d774efea TO |
398 | } |
399 | ||
400 | static void u132_endp_cancel_work(struct u132 *u132, struct u132_endp *endp) | |
401 | { | |
402 | if (cancel_delayed_work(&endp->scheduler)) | |
403 | kref_put(&endp->kref, u132_endp_delete); | |
404 | } | |
405 | ||
406 | static inline void u132_monitor_put_kref(struct u132 *u132) | |
407 | { | |
408 | kref_put(&u132->kref, u132_hcd_delete); | |
409 | } | |
410 | ||
411 | static void u132_monitor_queue_work(struct u132 *u132, unsigned int delta) | |
412 | { | |
c4028958 DH |
413 | if (queue_delayed_work(workqueue, &u132->monitor, delta)) |
414 | kref_get(&u132->kref); | |
d774efea TO |
415 | } |
416 | ||
417 | static void u132_monitor_requeue_work(struct u132 *u132, unsigned int delta) | |
418 | { | |
c4028958 DH |
419 | if (!queue_delayed_work(workqueue, &u132->monitor, delta)) |
420 | kref_put(&u132->kref, u132_hcd_delete); | |
d774efea TO |
421 | } |
422 | ||
423 | static void u132_monitor_cancel_work(struct u132 *u132) | |
424 | { | |
425 | if (cancel_delayed_work(&u132->monitor)) | |
426 | kref_put(&u132->kref, u132_hcd_delete); | |
427 | } | |
428 | ||
429 | static int read_roothub_info(struct u132 *u132) | |
430 | { | |
431 | u32 revision; | |
432 | int retval; | |
433 | retval = u132_read_pcimem(u132, revision, &revision); | |
434 | if (retval) { | |
435 | dev_err(&u132->platform_dev->dev, "error %d accessing device co" | |
436 | "ntrol\n", retval); | |
437 | return retval; | |
438 | } else if ((revision & 0xFF) == 0x10) { | |
439 | } else if ((revision & 0xFF) == 0x11) { | |
440 | } else { | |
441 | dev_err(&u132->platform_dev->dev, "device revision is not valid" | |
442 | " %08X\n", revision); | |
443 | return -ENODEV; | |
444 | } | |
445 | retval = u132_read_pcimem(u132, control, &u132->hc_control); | |
446 | if (retval) { | |
447 | dev_err(&u132->platform_dev->dev, "error %d accessing device co" | |
448 | "ntrol\n", retval); | |
449 | return retval; | |
450 | } | |
451 | retval = u132_read_pcimem(u132, roothub.status, | |
452 | &u132->hc_roothub_status); | |
453 | if (retval) { | |
454 | dev_err(&u132->platform_dev->dev, "error %d accessing device re" | |
455 | "g roothub.status\n", retval); | |
456 | return retval; | |
457 | } | |
458 | retval = u132_read_pcimem(u132, roothub.a, &u132->hc_roothub_a); | |
459 | if (retval) { | |
460 | dev_err(&u132->platform_dev->dev, "error %d accessing device re" | |
461 | "g roothub.a\n", retval); | |
462 | return retval; | |
463 | } | |
464 | { | |
465 | int I = u132->num_ports; | |
466 | int i = 0; | |
467 | while (I-- > 0) { | |
468 | retval = u132_read_pcimem(u132, roothub.portstatus[i], | |
469 | &u132->hc_roothub_portstatus[i]); | |
470 | if (retval) { | |
471 | dev_err(&u132->platform_dev->dev, "error %d acc" | |
472 | "essing device roothub.portstatus[%d]\n" | |
473 | , retval, i); | |
474 | return retval; | |
475 | } else | |
476 | i += 1; | |
477 | } | |
478 | } | |
479 | return 0; | |
480 | } | |
481 | ||
c4028958 | 482 | static void u132_hcd_monitor_work(struct work_struct *work) |
d774efea | 483 | { |
c4028958 | 484 | struct u132 *u132 = container_of(work, struct u132, monitor.work); |
d774efea TO |
485 | if (u132->going > 1) { |
486 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
487 | , u132->going); | |
488 | u132_monitor_put_kref(u132); | |
489 | return; | |
490 | } else if (u132->going > 0) { | |
491 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
492 | u132_monitor_put_kref(u132); | |
493 | return; | |
494 | } else { | |
495 | int retval; | |
496 | down(&u132->sw_lock); | |
497 | retval = read_roothub_info(u132); | |
498 | if (retval) { | |
499 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
500 | u132_disable(u132); | |
501 | u132->going = 1; | |
502 | up(&u132->sw_lock); | |
503 | usb_hc_died(hcd); | |
504 | ftdi_elan_gone_away(u132->platform_dev); | |
505 | u132_monitor_put_kref(u132); | |
506 | return; | |
507 | } else { | |
508 | u132_monitor_requeue_work(u132, 500); | |
509 | up(&u132->sw_lock); | |
510 | return; | |
511 | } | |
512 | } | |
513 | } | |
514 | ||
515 | static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp, | |
516 | struct urb *urb, int status) | |
517 | { | |
518 | struct u132_ring *ring; | |
519 | unsigned long irqs; | |
520 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
521 | urb->error_count = 0; | |
522 | urb->status = status; | |
523 | urb->hcpriv = NULL; | |
524 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
525 | endp->queue_next += 1; | |
526 | if (ENDP_QUEUE_SIZE > --endp->queue_size) { | |
527 | endp->active = 0; | |
528 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
529 | } else { | |
530 | struct list_head *next = endp->urb_more.next; | |
531 | struct u132_urbq *urbq = list_entry(next, struct u132_urbq, | |
532 | urb_more); | |
533 | list_del(next); | |
534 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = | |
535 | urbq->urb; | |
536 | endp->active = 0; | |
537 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
538 | kfree(urbq); | |
539 | } down(&u132->scheduler_lock); | |
540 | ring = endp->ring; | |
541 | ring->in_use = 0; | |
542 | u132_ring_cancel_work(u132, ring); | |
543 | u132_ring_queue_work(u132, ring, 0); | |
544 | up(&u132->scheduler_lock); | |
545 | u132_endp_put_kref(u132, endp); | |
7d12e780 | 546 | usb_hcd_giveback_urb(hcd, urb); |
d774efea TO |
547 | return; |
548 | } | |
549 | ||
550 | static void u132_hcd_forget_urb(struct u132 *u132, struct u132_endp *endp, | |
551 | struct urb *urb, int status) | |
552 | { | |
553 | u132_endp_put_kref(u132, endp); | |
554 | } | |
555 | ||
556 | static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp, | |
557 | struct urb *urb, int status) | |
558 | { | |
559 | unsigned long irqs; | |
560 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
561 | urb->error_count = 0; | |
562 | urb->status = status; | |
563 | urb->hcpriv = NULL; | |
564 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
565 | endp->queue_next += 1; | |
566 | if (ENDP_QUEUE_SIZE > --endp->queue_size) { | |
567 | endp->active = 0; | |
568 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
569 | } else { | |
570 | struct list_head *next = endp->urb_more.next; | |
571 | struct u132_urbq *urbq = list_entry(next, struct u132_urbq, | |
572 | urb_more); | |
573 | list_del(next); | |
574 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = | |
575 | urbq->urb; | |
576 | endp->active = 0; | |
577 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
578 | kfree(urbq); | |
7d12e780 | 579 | } usb_hcd_giveback_urb(hcd, urb); |
d774efea TO |
580 | return; |
581 | } | |
582 | ||
583 | static inline int edset_input(struct u132 *u132, struct u132_ring *ring, | |
584 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, | |
585 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, | |
586 | int toggle_bits, int error_count, int condition_code, int repeat_number, | |
587 | int halted, int skipped, int actual, int non_null)) | |
588 | { | |
589 | return usb_ftdi_elan_edset_input(u132->platform_dev, ring->number, endp, | |
590 | urb, address, endp->usb_endp, toggle_bits, callback); | |
591 | } | |
592 | ||
593 | static inline int edset_setup(struct u132 *u132, struct u132_ring *ring, | |
594 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, | |
595 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, | |
596 | int toggle_bits, int error_count, int condition_code, int repeat_number, | |
597 | int halted, int skipped, int actual, int non_null)) | |
598 | { | |
599 | return usb_ftdi_elan_edset_setup(u132->platform_dev, ring->number, endp, | |
600 | urb, address, endp->usb_endp, toggle_bits, callback); | |
601 | } | |
602 | ||
603 | static inline int edset_single(struct u132 *u132, struct u132_ring *ring, | |
604 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, | |
605 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, | |
606 | int toggle_bits, int error_count, int condition_code, int repeat_number, | |
607 | int halted, int skipped, int actual, int non_null)) | |
608 | { | |
609 | return usb_ftdi_elan_edset_single(u132->platform_dev, ring->number, | |
610 | endp, urb, address, endp->usb_endp, toggle_bits, callback); | |
611 | } | |
612 | ||
613 | static inline int edset_output(struct u132 *u132, struct u132_ring *ring, | |
614 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, | |
615 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, | |
616 | int toggle_bits, int error_count, int condition_code, int repeat_number, | |
617 | int halted, int skipped, int actual, int non_null)) | |
618 | { | |
619 | return usb_ftdi_elan_edset_output(u132->platform_dev, ring->number, | |
620 | endp, urb, address, endp->usb_endp, toggle_bits, callback); | |
621 | } | |
622 | ||
623 | ||
624 | /* | |
625 | * must not LOCK sw_lock | |
626 | * | |
627 | */ | |
628 | static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf, | |
629 | int len, int toggle_bits, int error_count, int condition_code, | |
630 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
631 | { | |
632 | struct u132_endp *endp = data; | |
633 | struct u132 *u132 = endp->u132; | |
634 | u8 address = u132->addr[endp->usb_addr].address; | |
635 | struct u132_udev *udev = &u132->udev[address]; | |
636 | down(&u132->scheduler_lock); | |
637 | if (u132->going > 1) { | |
638 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
639 | , u132->going); | |
640 | up(&u132->scheduler_lock); | |
641 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); | |
642 | return; | |
643 | } else if (endp->dequeueing) { | |
644 | endp->dequeueing = 0; | |
645 | up(&u132->scheduler_lock); | |
646 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); | |
647 | return; | |
648 | } else if (u132->going > 0) { | |
649 | dev_err(&u132->platform_dev->dev, "device is being removed urb=" | |
650 | "%p status=%d\n", urb, urb->status); | |
651 | up(&u132->scheduler_lock); | |
652 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); | |
653 | return; | |
654 | } else if (urb->status == -EINPROGRESS) { | |
655 | struct u132_ring *ring = endp->ring; | |
656 | u8 *u = urb->transfer_buffer + urb->actual_length; | |
657 | u8 *b = buf; | |
658 | int L = len; | |
659 | while (L-- > 0) { | |
660 | *u++ = *b++; | |
661 | } | |
662 | urb->actual_length += len; | |
663 | if ((condition_code == TD_CC_NOERROR) && | |
664 | (urb->transfer_buffer_length > urb->actual_length)) { | |
665 | endp->toggle_bits = toggle_bits; | |
666 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
667 | 1 & toggle_bits); | |
668 | if (urb->actual_length > 0) { | |
669 | int retval; | |
670 | up(&u132->scheduler_lock); | |
671 | retval = edset_single(u132, ring, endp, urb, | |
672 | address, endp->toggle_bits, | |
673 | u132_hcd_interrupt_recv); | |
674 | if (retval == 0) { | |
675 | } else | |
676 | u132_hcd_giveback_urb(u132, endp, urb, | |
677 | retval); | |
678 | } else { | |
679 | ring->in_use = 0; | |
680 | endp->active = 0; | |
681 | endp->jiffies = jiffies + | |
682 | msecs_to_jiffies(urb->interval); | |
683 | u132_ring_cancel_work(u132, ring); | |
684 | u132_ring_queue_work(u132, ring, 0); | |
685 | up(&u132->scheduler_lock); | |
686 | u132_endp_put_kref(u132, endp); | |
687 | } | |
688 | return; | |
689 | } else if ((condition_code == TD_DATAUNDERRUN) && | |
690 | ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) { | |
691 | endp->toggle_bits = toggle_bits; | |
692 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
693 | 1 & toggle_bits); | |
694 | up(&u132->scheduler_lock); | |
695 | u132_hcd_giveback_urb(u132, endp, urb, 0); | |
696 | return; | |
697 | } else { | |
698 | if (condition_code == TD_CC_NOERROR) { | |
699 | endp->toggle_bits = toggle_bits; | |
700 | usb_settoggle(udev->usb_device, endp->usb_endp, | |
701 | 0, 1 & toggle_bits); | |
702 | } else if (condition_code == TD_CC_STALL) { | |
703 | endp->toggle_bits = 0x2; | |
704 | usb_settoggle(udev->usb_device, endp->usb_endp, | |
705 | 0, 0); | |
706 | } else { | |
707 | endp->toggle_bits = 0x2; | |
708 | usb_settoggle(udev->usb_device, endp->usb_endp, | |
709 | 0, 0); | |
710 | dev_err(&u132->platform_dev->dev, "urb=%p givin" | |
711 | "g back INTERRUPT %s\n", urb, | |
712 | cc_to_text[condition_code]); | |
713 | } | |
714 | up(&u132->scheduler_lock); | |
715 | u132_hcd_giveback_urb(u132, endp, urb, | |
716 | cc_to_error[condition_code]); | |
717 | return; | |
718 | } | |
719 | } else { | |
720 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" | |
721 | "s=%d\n", urb, urb->status); | |
722 | up(&u132->scheduler_lock); | |
723 | u132_hcd_giveback_urb(u132, endp, urb, urb->status); | |
724 | return; | |
725 | } | |
726 | } | |
727 | ||
728 | static void u132_hcd_bulk_output_sent(void *data, struct urb *urb, u8 *buf, | |
729 | int len, int toggle_bits, int error_count, int condition_code, | |
730 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
731 | { | |
732 | struct u132_endp *endp = data; | |
733 | struct u132 *u132 = endp->u132; | |
734 | u8 address = u132->addr[endp->usb_addr].address; | |
735 | down(&u132->scheduler_lock); | |
736 | if (u132->going > 1) { | |
737 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
738 | , u132->going); | |
739 | up(&u132->scheduler_lock); | |
740 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); | |
741 | return; | |
742 | } else if (endp->dequeueing) { | |
743 | endp->dequeueing = 0; | |
744 | up(&u132->scheduler_lock); | |
745 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); | |
746 | return; | |
747 | } else if (u132->going > 0) { | |
748 | dev_err(&u132->platform_dev->dev, "device is being removed urb=" | |
749 | "%p status=%d\n", urb, urb->status); | |
750 | up(&u132->scheduler_lock); | |
751 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); | |
752 | return; | |
753 | } else if (urb->status == -EINPROGRESS) { | |
754 | struct u132_ring *ring = endp->ring; | |
755 | urb->actual_length += len; | |
756 | endp->toggle_bits = toggle_bits; | |
757 | if (urb->transfer_buffer_length > urb->actual_length) { | |
758 | int retval; | |
759 | up(&u132->scheduler_lock); | |
760 | retval = edset_output(u132, ring, endp, urb, address, | |
761 | endp->toggle_bits, u132_hcd_bulk_output_sent); | |
762 | if (retval == 0) { | |
763 | } else | |
764 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
765 | return; | |
766 | } else { | |
767 | up(&u132->scheduler_lock); | |
768 | u132_hcd_giveback_urb(u132, endp, urb, 0); | |
769 | return; | |
770 | } | |
771 | } else { | |
772 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" | |
773 | "s=%d\n", urb, urb->status); | |
774 | up(&u132->scheduler_lock); | |
775 | u132_hcd_giveback_urb(u132, endp, urb, urb->status); | |
776 | return; | |
777 | } | |
778 | } | |
779 | ||
780 | static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf, | |
781 | int len, int toggle_bits, int error_count, int condition_code, | |
782 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
783 | { | |
784 | struct u132_endp *endp = data; | |
785 | struct u132 *u132 = endp->u132; | |
786 | u8 address = u132->addr[endp->usb_addr].address; | |
787 | struct u132_udev *udev = &u132->udev[address]; | |
788 | down(&u132->scheduler_lock); | |
789 | if (u132->going > 1) { | |
790 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
791 | , u132->going); | |
792 | up(&u132->scheduler_lock); | |
793 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); | |
794 | return; | |
795 | } else if (endp->dequeueing) { | |
796 | endp->dequeueing = 0; | |
797 | up(&u132->scheduler_lock); | |
798 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); | |
799 | return; | |
800 | } else if (u132->going > 0) { | |
801 | dev_err(&u132->platform_dev->dev, "device is being removed urb=" | |
802 | "%p status=%d\n", urb, urb->status); | |
803 | up(&u132->scheduler_lock); | |
804 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); | |
805 | return; | |
806 | } else if (urb->status == -EINPROGRESS) { | |
807 | struct u132_ring *ring = endp->ring; | |
808 | u8 *u = urb->transfer_buffer + urb->actual_length; | |
809 | u8 *b = buf; | |
810 | int L = len; | |
811 | while (L-- > 0) { | |
812 | *u++ = *b++; | |
813 | } | |
814 | urb->actual_length += len; | |
815 | if ((condition_code == TD_CC_NOERROR) && | |
816 | (urb->transfer_buffer_length > urb->actual_length)) { | |
817 | int retval; | |
818 | endp->toggle_bits = toggle_bits; | |
819 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
820 | 1 & toggle_bits); | |
821 | up(&u132->scheduler_lock); | |
822 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, | |
823 | ring->number, endp, urb, address, | |
824 | endp->usb_endp, endp->toggle_bits, | |
825 | u132_hcd_bulk_input_recv); | |
826 | if (retval == 0) { | |
827 | } else | |
828 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
829 | return; | |
830 | } else if (condition_code == TD_CC_NOERROR) { | |
831 | endp->toggle_bits = toggle_bits; | |
832 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
833 | 1 & toggle_bits); | |
834 | up(&u132->scheduler_lock); | |
835 | u132_hcd_giveback_urb(u132, endp, urb, | |
836 | cc_to_error[condition_code]); | |
837 | return; | |
838 | } else if ((condition_code == TD_DATAUNDERRUN) && | |
839 | ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) { | |
840 | endp->toggle_bits = toggle_bits; | |
841 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
842 | 1 & toggle_bits); | |
843 | up(&u132->scheduler_lock); | |
844 | u132_hcd_giveback_urb(u132, endp, urb, 0); | |
845 | return; | |
846 | } else if (condition_code == TD_DATAUNDERRUN) { | |
847 | endp->toggle_bits = toggle_bits; | |
848 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
849 | 1 & toggle_bits); | |
850 | dev_warn(&u132->platform_dev->dev, "urb=%p(SHORT NOT OK" | |
851 | ") giving back BULK IN %s\n", urb, | |
852 | cc_to_text[condition_code]); | |
853 | up(&u132->scheduler_lock); | |
854 | u132_hcd_giveback_urb(u132, endp, urb, 0); | |
855 | return; | |
856 | } else if (condition_code == TD_CC_STALL) { | |
857 | endp->toggle_bits = 0x2; | |
858 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0); | |
859 | up(&u132->scheduler_lock); | |
860 | u132_hcd_giveback_urb(u132, endp, urb, | |
861 | cc_to_error[condition_code]); | |
862 | return; | |
863 | } else { | |
864 | endp->toggle_bits = 0x2; | |
865 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0); | |
866 | dev_err(&u132->platform_dev->dev, "urb=%p giving back B" | |
867 | "ULK IN code=%d %s\n", urb, condition_code, | |
868 | cc_to_text[condition_code]); | |
869 | up(&u132->scheduler_lock); | |
870 | u132_hcd_giveback_urb(u132, endp, urb, | |
871 | cc_to_error[condition_code]); | |
872 | return; | |
873 | } | |
874 | } else { | |
875 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" | |
876 | "s=%d\n", urb, urb->status); | |
877 | up(&u132->scheduler_lock); | |
878 | u132_hcd_giveback_urb(u132, endp, urb, urb->status); | |
879 | return; | |
880 | } | |
881 | } | |
882 | ||
883 | static void u132_hcd_configure_empty_sent(void *data, struct urb *urb, u8 *buf, | |
884 | int len, int toggle_bits, int error_count, int condition_code, | |
885 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
886 | { | |
887 | struct u132_endp *endp = data; | |
888 | struct u132 *u132 = endp->u132; | |
889 | down(&u132->scheduler_lock); | |
890 | if (u132->going > 1) { | |
891 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
892 | , u132->going); | |
893 | up(&u132->scheduler_lock); | |
894 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); | |
895 | return; | |
896 | } else if (endp->dequeueing) { | |
897 | endp->dequeueing = 0; | |
898 | up(&u132->scheduler_lock); | |
899 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); | |
900 | return; | |
901 | } else if (u132->going > 0) { | |
902 | dev_err(&u132->platform_dev->dev, "device is being removed urb=" | |
903 | "%p status=%d\n", urb, urb->status); | |
904 | up(&u132->scheduler_lock); | |
905 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); | |
906 | return; | |
907 | } else if (urb->status == -EINPROGRESS) { | |
908 | up(&u132->scheduler_lock); | |
909 | u132_hcd_giveback_urb(u132, endp, urb, 0); | |
910 | return; | |
911 | } else { | |
912 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" | |
913 | "s=%d\n", urb, urb->status); | |
914 | up(&u132->scheduler_lock); | |
915 | u132_hcd_giveback_urb(u132, endp, urb, urb->status); | |
916 | return; | |
917 | } | |
918 | } | |
919 | ||
920 | static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf, | |
921 | int len, int toggle_bits, int error_count, int condition_code, | |
922 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
923 | { | |
924 | struct u132_endp *endp = data; | |
925 | struct u132 *u132 = endp->u132; | |
926 | u8 address = u132->addr[endp->usb_addr].address; | |
927 | down(&u132->scheduler_lock); | |
928 | if (u132->going > 1) { | |
929 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
930 | , u132->going); | |
931 | up(&u132->scheduler_lock); | |
932 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); | |
933 | return; | |
934 | } else if (endp->dequeueing) { | |
935 | endp->dequeueing = 0; | |
936 | up(&u132->scheduler_lock); | |
937 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); | |
938 | return; | |
939 | } else if (u132->going > 0) { | |
940 | dev_err(&u132->platform_dev->dev, "device is being removed urb=" | |
941 | "%p status=%d\n", urb, urb->status); | |
942 | up(&u132->scheduler_lock); | |
943 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); | |
944 | return; | |
945 | } else if (urb->status == -EINPROGRESS) { | |
946 | struct u132_ring *ring = endp->ring; | |
947 | u8 *u = urb->transfer_buffer; | |
948 | u8 *b = buf; | |
949 | int L = len; | |
950 | while (L-- > 0) { | |
951 | *u++ = *b++; | |
952 | } | |
953 | urb->actual_length = len; | |
954 | if ((condition_code == TD_CC_NOERROR) || ((condition_code == | |
955 | TD_DATAUNDERRUN) && ((urb->transfer_flags & | |
956 | URB_SHORT_NOT_OK) == 0))) { | |
957 | int retval; | |
958 | up(&u132->scheduler_lock); | |
959 | retval = usb_ftdi_elan_edset_empty(u132->platform_dev, | |
960 | ring->number, endp, urb, address, | |
961 | endp->usb_endp, 0x3, | |
962 | u132_hcd_configure_empty_sent); | |
963 | if (retval == 0) { | |
964 | } else | |
965 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
966 | return; | |
967 | } else if (condition_code == TD_CC_STALL) { | |
968 | up(&u132->scheduler_lock); | |
969 | dev_warn(&u132->platform_dev->dev, "giving back SETUP I" | |
970 | "NPUT STALL urb %p\n", urb); | |
971 | u132_hcd_giveback_urb(u132, endp, urb, | |
972 | cc_to_error[condition_code]); | |
973 | return; | |
974 | } else { | |
975 | up(&u132->scheduler_lock); | |
976 | dev_err(&u132->platform_dev->dev, "giving back SETUP IN" | |
977 | "PUT %s urb %p\n", cc_to_text[condition_code], | |
978 | urb); | |
979 | u132_hcd_giveback_urb(u132, endp, urb, | |
980 | cc_to_error[condition_code]); | |
981 | return; | |
982 | } | |
983 | } else { | |
984 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" | |
985 | "s=%d\n", urb, urb->status); | |
986 | up(&u132->scheduler_lock); | |
987 | u132_hcd_giveback_urb(u132, endp, urb, urb->status); | |
988 | return; | |
989 | } | |
990 | } | |
991 | ||
992 | static void u132_hcd_configure_empty_recv(void *data, struct urb *urb, u8 *buf, | |
993 | int len, int toggle_bits, int error_count, int condition_code, | |
994 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
995 | { | |
996 | struct u132_endp *endp = data; | |
997 | struct u132 *u132 = endp->u132; | |
998 | down(&u132->scheduler_lock); | |
999 | if (u132->going > 1) { | |
1000 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1001 | , u132->going); | |
1002 | up(&u132->scheduler_lock); | |
1003 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); | |
1004 | return; | |
1005 | } else if (endp->dequeueing) { | |
1006 | endp->dequeueing = 0; | |
1007 | up(&u132->scheduler_lock); | |
1008 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); | |
1009 | return; | |
1010 | } else if (u132->going > 0) { | |
1011 | dev_err(&u132->platform_dev->dev, "device is being removed urb=" | |
1012 | "%p status=%d\n", urb, urb->status); | |
1013 | up(&u132->scheduler_lock); | |
1014 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); | |
1015 | return; | |
1016 | } else if (urb->status == -EINPROGRESS) { | |
1017 | up(&u132->scheduler_lock); | |
1018 | u132_hcd_giveback_urb(u132, endp, urb, 0); | |
1019 | return; | |
1020 | } else { | |
1021 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" | |
1022 | "s=%d\n", urb, urb->status); | |
1023 | up(&u132->scheduler_lock); | |
1024 | u132_hcd_giveback_urb(u132, endp, urb, urb->status); | |
1025 | return; | |
1026 | } | |
1027 | } | |
1028 | ||
1029 | static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf, | |
1030 | int len, int toggle_bits, int error_count, int condition_code, | |
1031 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1032 | { | |
1033 | struct u132_endp *endp = data; | |
1034 | struct u132 *u132 = endp->u132; | |
1035 | u8 address = u132->addr[endp->usb_addr].address; | |
1036 | down(&u132->scheduler_lock); | |
1037 | if (u132->going > 1) { | |
1038 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1039 | , u132->going); | |
1040 | up(&u132->scheduler_lock); | |
1041 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); | |
1042 | return; | |
1043 | } else if (endp->dequeueing) { | |
1044 | endp->dequeueing = 0; | |
1045 | up(&u132->scheduler_lock); | |
1046 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); | |
1047 | return; | |
1048 | } else if (u132->going > 0) { | |
1049 | dev_err(&u132->platform_dev->dev, "device is being removed urb=" | |
1050 | "%p status=%d\n", urb, urb->status); | |
1051 | up(&u132->scheduler_lock); | |
1052 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); | |
1053 | return; | |
1054 | } else if (urb->status == -EINPROGRESS) { | |
1055 | if (usb_pipein(urb->pipe)) { | |
1056 | int retval; | |
1057 | struct u132_ring *ring = endp->ring; | |
1058 | up(&u132->scheduler_lock); | |
1059 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, | |
1060 | ring->number, endp, urb, address, | |
1061 | endp->usb_endp, 0, | |
1062 | u132_hcd_configure_input_recv); | |
1063 | if (retval == 0) { | |
1064 | } else | |
1065 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1066 | return; | |
1067 | } else { | |
1068 | int retval; | |
1069 | struct u132_ring *ring = endp->ring; | |
1070 | up(&u132->scheduler_lock); | |
1071 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, | |
1072 | ring->number, endp, urb, address, | |
1073 | endp->usb_endp, 0, | |
1074 | u132_hcd_configure_empty_recv); | |
1075 | if (retval == 0) { | |
1076 | } else | |
1077 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1078 | return; | |
1079 | } | |
1080 | } else { | |
1081 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" | |
1082 | "s=%d\n", urb, urb->status); | |
1083 | up(&u132->scheduler_lock); | |
1084 | u132_hcd_giveback_urb(u132, endp, urb, urb->status); | |
1085 | return; | |
1086 | } | |
1087 | } | |
1088 | ||
1089 | static void u132_hcd_enumeration_empty_recv(void *data, struct urb *urb, | |
1090 | u8 *buf, int len, int toggle_bits, int error_count, int condition_code, | |
1091 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1092 | { | |
1093 | struct u132_endp *endp = data; | |
1094 | struct u132 *u132 = endp->u132; | |
1095 | u8 address = u132->addr[endp->usb_addr].address; | |
1096 | struct u132_udev *udev = &u132->udev[address]; | |
1097 | down(&u132->scheduler_lock); | |
1098 | if (u132->going > 1) { | |
1099 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1100 | , u132->going); | |
1101 | up(&u132->scheduler_lock); | |
1102 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); | |
1103 | return; | |
1104 | } else if (endp->dequeueing) { | |
1105 | endp->dequeueing = 0; | |
1106 | up(&u132->scheduler_lock); | |
1107 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); | |
1108 | return; | |
1109 | } else if (u132->going > 0) { | |
1110 | dev_err(&u132->platform_dev->dev, "device is being removed urb=" | |
1111 | "%p status=%d\n", urb, urb->status); | |
1112 | up(&u132->scheduler_lock); | |
1113 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); | |
1114 | return; | |
1115 | } else if (urb->status == -EINPROGRESS) { | |
1116 | u132->addr[0].address = 0; | |
1117 | endp->usb_addr = udev->usb_addr; | |
1118 | up(&u132->scheduler_lock); | |
1119 | u132_hcd_giveback_urb(u132, endp, urb, 0); | |
1120 | return; | |
1121 | } else { | |
1122 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" | |
1123 | "s=%d\n", urb, urb->status); | |
1124 | up(&u132->scheduler_lock); | |
1125 | u132_hcd_giveback_urb(u132, endp, urb, urb->status); | |
1126 | return; | |
1127 | } | |
1128 | } | |
1129 | ||
1130 | static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb, | |
1131 | u8 *buf, int len, int toggle_bits, int error_count, int condition_code, | |
1132 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1133 | { | |
1134 | struct u132_endp *endp = data; | |
1135 | struct u132 *u132 = endp->u132; | |
1136 | down(&u132->scheduler_lock); | |
1137 | if (u132->going > 1) { | |
1138 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1139 | , u132->going); | |
1140 | up(&u132->scheduler_lock); | |
1141 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); | |
1142 | return; | |
1143 | } else if (endp->dequeueing) { | |
1144 | endp->dequeueing = 0; | |
1145 | up(&u132->scheduler_lock); | |
1146 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); | |
1147 | return; | |
1148 | } else if (u132->going > 0) { | |
1149 | dev_err(&u132->platform_dev->dev, "device is being removed urb=" | |
1150 | "%p status=%d\n", urb, urb->status); | |
1151 | up(&u132->scheduler_lock); | |
1152 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); | |
1153 | return; | |
1154 | } else if (urb->status == -EINPROGRESS) { | |
1155 | int retval; | |
1156 | struct u132_ring *ring = endp->ring; | |
1157 | up(&u132->scheduler_lock); | |
1158 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, | |
1159 | ring->number, endp, urb, 0, endp->usb_endp, 0, | |
1160 | u132_hcd_enumeration_empty_recv); | |
1161 | if (retval == 0) { | |
1162 | } else | |
1163 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1164 | return; | |
1165 | } else { | |
1166 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" | |
1167 | "s=%d\n", urb, urb->status); | |
1168 | up(&u132->scheduler_lock); | |
1169 | u132_hcd_giveback_urb(u132, endp, urb, urb->status); | |
1170 | return; | |
1171 | } | |
1172 | } | |
1173 | ||
1174 | static void u132_hcd_initial_empty_sent(void *data, struct urb *urb, u8 *buf, | |
1175 | int len, int toggle_bits, int error_count, int condition_code, | |
1176 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1177 | { | |
1178 | struct u132_endp *endp = data; | |
1179 | struct u132 *u132 = endp->u132; | |
1180 | down(&u132->scheduler_lock); | |
1181 | if (u132->going > 1) { | |
1182 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1183 | , u132->going); | |
1184 | up(&u132->scheduler_lock); | |
1185 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); | |
1186 | return; | |
1187 | } else if (endp->dequeueing) { | |
1188 | endp->dequeueing = 0; | |
1189 | up(&u132->scheduler_lock); | |
1190 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); | |
1191 | return; | |
1192 | } else if (u132->going > 0) { | |
1193 | dev_err(&u132->platform_dev->dev, "device is being removed urb=" | |
1194 | "%p status=%d\n", urb, urb->status); | |
1195 | up(&u132->scheduler_lock); | |
1196 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); | |
1197 | return; | |
1198 | } else if (urb->status == -EINPROGRESS) { | |
1199 | up(&u132->scheduler_lock); | |
1200 | u132_hcd_giveback_urb(u132, endp, urb, 0); | |
1201 | return; | |
1202 | } else { | |
1203 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" | |
1204 | "s=%d\n", urb, urb->status); | |
1205 | up(&u132->scheduler_lock); | |
1206 | u132_hcd_giveback_urb(u132, endp, urb, urb->status); | |
1207 | return; | |
1208 | } | |
1209 | } | |
1210 | ||
1211 | static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf, | |
1212 | int len, int toggle_bits, int error_count, int condition_code, | |
1213 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1214 | { | |
1215 | struct u132_endp *endp = data; | |
1216 | struct u132 *u132 = endp->u132; | |
1217 | u8 address = u132->addr[endp->usb_addr].address; | |
1218 | down(&u132->scheduler_lock); | |
1219 | if (u132->going > 1) { | |
1220 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1221 | , u132->going); | |
1222 | up(&u132->scheduler_lock); | |
1223 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); | |
1224 | return; | |
1225 | } else if (endp->dequeueing) { | |
1226 | endp->dequeueing = 0; | |
1227 | up(&u132->scheduler_lock); | |
1228 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); | |
1229 | return; | |
1230 | } else if (u132->going > 0) { | |
1231 | dev_err(&u132->platform_dev->dev, "device is being removed urb=" | |
1232 | "%p status=%d\n", urb, urb->status); | |
1233 | up(&u132->scheduler_lock); | |
1234 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); | |
1235 | return; | |
1236 | } else if (urb->status == -EINPROGRESS) { | |
1237 | int retval; | |
1238 | struct u132_ring *ring = endp->ring; | |
1239 | u8 *u = urb->transfer_buffer; | |
1240 | u8 *b = buf; | |
1241 | int L = len; | |
1242 | while (L-- > 0) { | |
1243 | *u++ = *b++; | |
1244 | } | |
1245 | urb->actual_length = len; | |
1246 | up(&u132->scheduler_lock); | |
1247 | retval = usb_ftdi_elan_edset_empty(u132->platform_dev, | |
1248 | ring->number, endp, urb, address, endp->usb_endp, 0x3, | |
1249 | u132_hcd_initial_empty_sent); | |
1250 | if (retval == 0) { | |
1251 | } else | |
1252 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1253 | return; | |
1254 | } else { | |
1255 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" | |
1256 | "s=%d\n", urb, urb->status); | |
1257 | up(&u132->scheduler_lock); | |
1258 | u132_hcd_giveback_urb(u132, endp, urb, urb->status); | |
1259 | return; | |
1260 | } | |
1261 | } | |
1262 | ||
1263 | static void u132_hcd_initial_setup_sent(void *data, struct urb *urb, u8 *buf, | |
1264 | int len, int toggle_bits, int error_count, int condition_code, | |
1265 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1266 | { | |
1267 | struct u132_endp *endp = data; | |
1268 | struct u132 *u132 = endp->u132; | |
1269 | u8 address = u132->addr[endp->usb_addr].address; | |
1270 | down(&u132->scheduler_lock); | |
1271 | if (u132->going > 1) { | |
1272 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1273 | , u132->going); | |
1274 | up(&u132->scheduler_lock); | |
1275 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); | |
1276 | return; | |
1277 | } else if (endp->dequeueing) { | |
1278 | endp->dequeueing = 0; | |
1279 | up(&u132->scheduler_lock); | |
1280 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); | |
1281 | return; | |
1282 | } else if (u132->going > 0) { | |
1283 | dev_err(&u132->platform_dev->dev, "device is being removed urb=" | |
1284 | "%p status=%d\n", urb, urb->status); | |
1285 | up(&u132->scheduler_lock); | |
1286 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); | |
1287 | return; | |
1288 | } else if (urb->status == -EINPROGRESS) { | |
1289 | int retval; | |
1290 | struct u132_ring *ring = endp->ring; | |
1291 | up(&u132->scheduler_lock); | |
1292 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, | |
1293 | ring->number, endp, urb, address, endp->usb_endp, 0, | |
1294 | u132_hcd_initial_input_recv); | |
1295 | if (retval == 0) { | |
1296 | } else | |
1297 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1298 | return; | |
1299 | } else { | |
1300 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" | |
1301 | "s=%d\n", urb, urb->status); | |
1302 | up(&u132->scheduler_lock); | |
1303 | u132_hcd_giveback_urb(u132, endp, urb, urb->status); | |
1304 | return; | |
1305 | } | |
1306 | } | |
1307 | ||
d774efea TO |
1308 | /* |
1309 | * this work function is only executed from the work queue | |
1310 | * | |
1311 | */ | |
c4028958 | 1312 | static void u132_hcd_ring_work_scheduler(struct work_struct *work) |
d774efea | 1313 | { |
c4028958 DH |
1314 | struct u132_ring *ring = |
1315 | container_of(work, struct u132_ring, scheduler.work); | |
d774efea TO |
1316 | struct u132 *u132 = ring->u132; |
1317 | down(&u132->scheduler_lock); | |
1318 | if (ring->in_use) { | |
1319 | up(&u132->scheduler_lock); | |
1320 | u132_ring_put_kref(u132, ring); | |
1321 | return; | |
1322 | } else if (ring->curr_endp) { | |
1323 | struct u132_endp *last_endp = ring->curr_endp; | |
1324 | struct list_head *scan; | |
1325 | struct list_head *head = &last_endp->endp_ring; | |
1326 | unsigned long wakeup = 0; | |
1327 | list_for_each(scan, head) { | |
1328 | struct u132_endp *endp = list_entry(scan, | |
1329 | struct u132_endp, endp_ring); | |
1330 | if (endp->queue_next == endp->queue_last) { | |
1331 | } else if ((endp->delayed == 0) | |
1332 | || time_after_eq(jiffies, endp->jiffies)) { | |
1333 | ring->curr_endp = endp; | |
1334 | u132_endp_cancel_work(u132, last_endp); | |
1335 | u132_endp_queue_work(u132, last_endp, 0); | |
1336 | up(&u132->scheduler_lock); | |
1337 | u132_ring_put_kref(u132, ring); | |
1338 | return; | |
1339 | } else { | |
1340 | unsigned long delta = endp->jiffies - jiffies; | |
1341 | if (delta > wakeup) | |
1342 | wakeup = delta; | |
1343 | } | |
1344 | } | |
1345 | if (last_endp->queue_next == last_endp->queue_last) { | |
1346 | } else if ((last_endp->delayed == 0) || time_after_eq(jiffies, | |
1347 | last_endp->jiffies)) { | |
1348 | u132_endp_cancel_work(u132, last_endp); | |
1349 | u132_endp_queue_work(u132, last_endp, 0); | |
1350 | up(&u132->scheduler_lock); | |
1351 | u132_ring_put_kref(u132, ring); | |
1352 | return; | |
1353 | } else { | |
1354 | unsigned long delta = last_endp->jiffies - jiffies; | |
1355 | if (delta > wakeup) | |
1356 | wakeup = delta; | |
1357 | } | |
1358 | if (wakeup > 0) { | |
1359 | u132_ring_requeue_work(u132, ring, wakeup); | |
1360 | up(&u132->scheduler_lock); | |
1361 | return; | |
1362 | } else { | |
1363 | up(&u132->scheduler_lock); | |
1364 | u132_ring_put_kref(u132, ring); | |
1365 | return; | |
1366 | } | |
1367 | } else { | |
1368 | up(&u132->scheduler_lock); | |
1369 | u132_ring_put_kref(u132, ring); | |
1370 | return; | |
1371 | } | |
1372 | } | |
1373 | ||
c4028958 | 1374 | static void u132_hcd_endp_work_scheduler(struct work_struct *work) |
d774efea TO |
1375 | { |
1376 | struct u132_ring *ring; | |
c4028958 DH |
1377 | struct u132_endp *endp = |
1378 | container_of(work, struct u132_endp, scheduler.work); | |
d774efea TO |
1379 | struct u132 *u132 = endp->u132; |
1380 | down(&u132->scheduler_lock); | |
1381 | ring = endp->ring; | |
1382 | if (endp->edset_flush) { | |
1383 | endp->edset_flush = 0; | |
1384 | if (endp->dequeueing) | |
1385 | usb_ftdi_elan_edset_flush(u132->platform_dev, | |
1386 | ring->number, endp); | |
1387 | up(&u132->scheduler_lock); | |
1388 | u132_endp_put_kref(u132, endp); | |
1389 | return; | |
1390 | } else if (endp->active) { | |
1391 | up(&u132->scheduler_lock); | |
1392 | u132_endp_put_kref(u132, endp); | |
1393 | return; | |
1394 | } else if (ring->in_use) { | |
1395 | up(&u132->scheduler_lock); | |
1396 | u132_endp_put_kref(u132, endp); | |
1397 | return; | |
1398 | } else if (endp->queue_next == endp->queue_last) { | |
1399 | up(&u132->scheduler_lock); | |
1400 | u132_endp_put_kref(u132, endp); | |
1401 | return; | |
1402 | } else if (endp->pipetype == PIPE_INTERRUPT) { | |
1403 | u8 address = u132->addr[endp->usb_addr].address; | |
1404 | if (ring->in_use) { | |
1405 | up(&u132->scheduler_lock); | |
1406 | u132_endp_put_kref(u132, endp); | |
1407 | return; | |
1408 | } else { | |
1409 | int retval; | |
1410 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & | |
1411 | endp->queue_next]; | |
1412 | endp->active = 1; | |
1413 | ring->curr_endp = endp; | |
1414 | ring->in_use = 1; | |
1415 | up(&u132->scheduler_lock); | |
1416 | retval = edset_single(u132, ring, endp, urb, address, | |
1417 | endp->toggle_bits, u132_hcd_interrupt_recv); | |
1418 | if (retval == 0) { | |
1419 | } else | |
1420 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1421 | return; | |
1422 | } | |
1423 | } else if (endp->pipetype == PIPE_CONTROL) { | |
1424 | u8 address = u132->addr[endp->usb_addr].address; | |
1425 | if (ring->in_use) { | |
1426 | up(&u132->scheduler_lock); | |
1427 | u132_endp_put_kref(u132, endp); | |
1428 | return; | |
1429 | } else if (address == 0) { | |
1430 | int retval; | |
1431 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & | |
1432 | endp->queue_next]; | |
1433 | endp->active = 1; | |
1434 | ring->curr_endp = endp; | |
1435 | ring->in_use = 1; | |
1436 | up(&u132->scheduler_lock); | |
1437 | retval = edset_setup(u132, ring, endp, urb, address, | |
1438 | 0x2, u132_hcd_initial_setup_sent); | |
1439 | if (retval == 0) { | |
1440 | } else | |
1441 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1442 | return; | |
1443 | } else if (endp->usb_addr == 0) { | |
1444 | int retval; | |
1445 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & | |
1446 | endp->queue_next]; | |
1447 | endp->active = 1; | |
1448 | ring->curr_endp = endp; | |
1449 | ring->in_use = 1; | |
1450 | up(&u132->scheduler_lock); | |
1451 | retval = edset_setup(u132, ring, endp, urb, 0, 0x2, | |
1452 | u132_hcd_enumeration_address_sent); | |
1453 | if (retval == 0) { | |
1454 | } else | |
1455 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1456 | return; | |
1457 | } else { | |
1458 | int retval; | |
1459 | u8 address = u132->addr[endp->usb_addr].address; | |
1460 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & | |
1461 | endp->queue_next]; | |
1462 | endp->active = 1; | |
1463 | ring->curr_endp = endp; | |
1464 | ring->in_use = 1; | |
1465 | up(&u132->scheduler_lock); | |
1466 | retval = edset_setup(u132, ring, endp, urb, address, | |
1467 | 0x2, u132_hcd_configure_setup_sent); | |
1468 | if (retval == 0) { | |
1469 | } else | |
1470 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1471 | return; | |
1472 | } | |
1473 | } else { | |
1474 | if (endp->input) { | |
1475 | u8 address = u132->addr[endp->usb_addr].address; | |
1476 | if (ring->in_use) { | |
1477 | up(&u132->scheduler_lock); | |
1478 | u132_endp_put_kref(u132, endp); | |
1479 | return; | |
1480 | } else { | |
1481 | int retval; | |
1482 | struct urb *urb = endp->urb_list[ | |
1483 | ENDP_QUEUE_MASK & endp->queue_next]; | |
1484 | endp->active = 1; | |
1485 | ring->curr_endp = endp; | |
1486 | ring->in_use = 1; | |
1487 | up(&u132->scheduler_lock); | |
1488 | retval = edset_input(u132, ring, endp, urb, | |
1489 | address, endp->toggle_bits, | |
1490 | u132_hcd_bulk_input_recv); | |
1491 | if (retval == 0) { | |
1492 | } else | |
1493 | u132_hcd_giveback_urb(u132, endp, urb, | |
1494 | retval); | |
1495 | return; | |
1496 | } | |
1497 | } else { /* output pipe */ | |
1498 | u8 address = u132->addr[endp->usb_addr].address; | |
1499 | if (ring->in_use) { | |
1500 | up(&u132->scheduler_lock); | |
1501 | u132_endp_put_kref(u132, endp); | |
1502 | return; | |
1503 | } else { | |
1504 | int retval; | |
1505 | struct urb *urb = endp->urb_list[ | |
1506 | ENDP_QUEUE_MASK & endp->queue_next]; | |
1507 | endp->active = 1; | |
1508 | ring->curr_endp = endp; | |
1509 | ring->in_use = 1; | |
1510 | up(&u132->scheduler_lock); | |
1511 | retval = edset_output(u132, ring, endp, urb, | |
1512 | address, endp->toggle_bits, | |
1513 | u132_hcd_bulk_output_sent); | |
1514 | if (retval == 0) { | |
1515 | } else | |
1516 | u132_hcd_giveback_urb(u132, endp, urb, | |
1517 | retval); | |
1518 | return; | |
1519 | } | |
1520 | } | |
1521 | } | |
1522 | } | |
1523 | ||
1524 | static void port_power(struct u132 *u132, int pn, int is_on) | |
1525 | { | |
1526 | u132->port[pn].power = is_on; | |
1527 | } | |
1528 | ||
1529 | static void u132_power(struct u132 *u132, int is_on) | |
1530 | { | |
1531 | struct usb_hcd *hcd = u132_to_hcd(u132) | |
1532 | ; /* hub is inactive unless the port is powered */ | |
1533 | if (is_on) { | |
1534 | if (u132->power) | |
1535 | return; | |
1536 | u132->power = 1; | |
1537 | hcd->self.controller->power.power_state = PMSG_ON; | |
1538 | } else { | |
1539 | u132->power = 0; | |
1540 | hcd->state = HC_STATE_HALT; | |
1541 | hcd->self.controller->power.power_state = PMSG_SUSPEND; | |
1542 | } | |
1543 | } | |
1544 | ||
1545 | static int u132_periodic_reinit(struct u132 *u132) | |
1546 | { | |
1547 | int retval; | |
1548 | u32 fi = u132->hc_fminterval & 0x03fff; | |
1549 | u32 fit; | |
1550 | u32 fminterval; | |
1551 | retval = u132_read_pcimem(u132, fminterval, &fminterval); | |
1552 | if (retval) | |
1553 | return retval; | |
1554 | fit = fminterval & FIT; | |
1555 | retval = u132_write_pcimem(u132, fminterval, | |
1556 | (fit ^ FIT) | u132->hc_fminterval); | |
1557 | if (retval) | |
1558 | return retval; | |
1559 | retval = u132_write_pcimem(u132, periodicstart, | |
1560 | ((9 *fi) / 10) & 0x3fff); | |
1561 | if (retval) | |
1562 | return retval; | |
1563 | return 0; | |
1564 | } | |
1565 | ||
1566 | static char *hcfs2string(int state) | |
1567 | { | |
1568 | switch (state) { | |
1569 | case OHCI_USB_RESET: | |
1570 | return "reset"; | |
1571 | case OHCI_USB_RESUME: | |
1572 | return "resume"; | |
1573 | case OHCI_USB_OPER: | |
1574 | return "operational"; | |
1575 | case OHCI_USB_SUSPEND: | |
1576 | return "suspend"; | |
1577 | } | |
1578 | return "?"; | |
1579 | } | |
1580 | ||
1581 | static int u132_usb_reset(struct u132 *u132) | |
1582 | { | |
1583 | int retval; | |
1584 | retval = u132_read_pcimem(u132, control, &u132->hc_control); | |
1585 | if (retval) | |
1586 | return retval; | |
1587 | u132->hc_control &= OHCI_CTRL_RWC; | |
1588 | retval = u132_write_pcimem(u132, control, u132->hc_control); | |
1589 | if (retval) | |
1590 | return retval; | |
1591 | return 0; | |
1592 | } | |
1593 | ||
1594 | static int u132_init(struct u132 *u132) | |
1595 | { | |
1596 | int retval; | |
1597 | u32 control; | |
1598 | u132_disable(u132); | |
1599 | u132->next_statechange = | |
1600 | jiffies; /* SMM owns the HC? not for long! */ { | |
1601 | u32 control; | |
1602 | retval = u132_read_pcimem(u132, control, &control); | |
1603 | if (retval) | |
1604 | return retval; | |
1605 | if (control & OHCI_CTRL_IR) { | |
1606 | u32 temp = 50; | |
1607 | retval = u132_write_pcimem(u132, intrenable, | |
1608 | OHCI_INTR_OC); | |
1609 | if (retval) | |
1610 | return retval; | |
1611 | retval = u132_write_pcimem_byte(u132, cmdstatus, | |
1612 | OHCI_OCR); | |
1613 | if (retval) | |
1614 | return retval; | |
1615 | check:{ | |
1616 | retval = u132_read_pcimem(u132, control, | |
1617 | &control); | |
1618 | if (retval) | |
1619 | return retval; | |
1620 | } | |
1621 | if (control & OHCI_CTRL_IR) { | |
1622 | msleep(10); | |
1623 | if (--temp == 0) { | |
1624 | dev_err(&u132->platform_dev->dev, "USB " | |
1625 | "HC takeover failed!(BIOS/SMM b" | |
1626 | "ug) control=%08X\n", control); | |
1627 | return -EBUSY; | |
1628 | } | |
1629 | goto check; | |
1630 | } | |
1631 | u132_usb_reset(u132); | |
1632 | } | |
1633 | } | |
1634 | retval = u132_write_pcimem(u132, intrdisable, OHCI_INTR_MIE); | |
1635 | if (retval) | |
1636 | return retval; | |
1637 | retval = u132_read_pcimem(u132, control, &control); | |
1638 | if (retval) | |
1639 | return retval; | |
1640 | if (u132->num_ports == 0) { | |
1641 | u32 rh_a = -1; | |
1642 | retval = u132_read_pcimem(u132, roothub.a, &rh_a); | |
1643 | if (retval) | |
1644 | return retval; | |
1645 | u132->num_ports = rh_a & RH_A_NDP; | |
1646 | retval = read_roothub_info(u132); | |
1647 | if (retval) | |
1648 | return retval; | |
1649 | } | |
1650 | if (u132->num_ports > MAX_U132_PORTS) { | |
1651 | return -EINVAL; | |
1652 | } | |
1653 | return 0; | |
1654 | } | |
1655 | ||
1656 | ||
1657 | /* Start an OHCI controller, set the BUS operational | |
1658 | * resets USB and controller | |
1659 | * enable interrupts | |
1660 | */ | |
1661 | static int u132_run(struct u132 *u132) | |
1662 | { | |
1663 | int retval; | |
1664 | u32 control; | |
1665 | u32 status; | |
1666 | u32 fminterval; | |
1667 | u32 periodicstart; | |
1668 | u32 cmdstatus; | |
1669 | u32 roothub_a; | |
1670 | int mask = OHCI_INTR_INIT; | |
1671 | int first = u132->hc_fminterval == 0; | |
1672 | int sleep_time = 0; | |
1673 | int reset_timeout = 30; /* ... allow extra time */ | |
1674 | u132_disable(u132); | |
1675 | if (first) { | |
1676 | u32 temp; | |
1677 | retval = u132_read_pcimem(u132, fminterval, &temp); | |
1678 | if (retval) | |
1679 | return retval; | |
1680 | u132->hc_fminterval = temp & 0x3fff; | |
1681 | if (u132->hc_fminterval != FI) { | |
1682 | } | |
1683 | u132->hc_fminterval |= FSMP(u132->hc_fminterval) << 16; | |
1684 | } | |
1685 | retval = u132_read_pcimem(u132, control, &u132->hc_control); | |
1686 | if (retval) | |
1687 | return retval; | |
1688 | dev_info(&u132->platform_dev->dev, "resetting from state '%s', control " | |
1689 | "= %08X\n", hcfs2string(u132->hc_control & OHCI_CTRL_HCFS), | |
1690 | u132->hc_control); | |
1691 | switch (u132->hc_control & OHCI_CTRL_HCFS) { | |
1692 | case OHCI_USB_OPER: | |
1693 | sleep_time = 0; | |
1694 | break; | |
1695 | case OHCI_USB_SUSPEND: | |
1696 | case OHCI_USB_RESUME: | |
1697 | u132->hc_control &= OHCI_CTRL_RWC; | |
1698 | u132->hc_control |= OHCI_USB_RESUME; | |
1699 | sleep_time = 10; | |
1700 | break; | |
1701 | default: | |
1702 | u132->hc_control &= OHCI_CTRL_RWC; | |
1703 | u132->hc_control |= OHCI_USB_RESET; | |
1704 | sleep_time = 50; | |
1705 | break; | |
1706 | } | |
1707 | retval = u132_write_pcimem(u132, control, u132->hc_control); | |
1708 | if (retval) | |
1709 | return retval; | |
1710 | retval = u132_read_pcimem(u132, control, &control); | |
1711 | if (retval) | |
1712 | return retval; | |
1713 | msleep(sleep_time); | |
1714 | retval = u132_read_pcimem(u132, roothub.a, &roothub_a); | |
1715 | if (retval) | |
1716 | return retval; | |
1717 | if (!(roothub_a & RH_A_NPS)) { | |
1718 | int temp; /* power down each port */ | |
1719 | for (temp = 0; temp < u132->num_ports; temp++) { | |
1720 | retval = u132_write_pcimem(u132, | |
1721 | roothub.portstatus[temp], RH_PS_LSDA); | |
1722 | if (retval) | |
1723 | return retval; | |
1724 | } | |
1725 | } | |
1726 | retval = u132_read_pcimem(u132, control, &control); | |
1727 | if (retval) | |
1728 | return retval; | |
1729 | retry:retval = u132_read_pcimem(u132, cmdstatus, &status); | |
1730 | if (retval) | |
1731 | return retval; | |
1732 | retval = u132_write_pcimem_byte(u132, cmdstatus, OHCI_HCR); | |
1733 | if (retval) | |
1734 | return retval; | |
1735 | extra:{ | |
1736 | retval = u132_read_pcimem(u132, cmdstatus, &status); | |
1737 | if (retval) | |
1738 | return retval; | |
1739 | if (0 != (status & OHCI_HCR)) { | |
1740 | if (--reset_timeout == 0) { | |
1741 | dev_err(&u132->platform_dev->dev, "USB HC reset" | |
1742 | " timed out!\n"); | |
1743 | return -ENODEV; | |
1744 | } else { | |
1745 | msleep(5); | |
1746 | goto extra; | |
1747 | } | |
1748 | } | |
1749 | } | |
1750 | if (u132->flags & OHCI_QUIRK_INITRESET) { | |
1751 | retval = u132_write_pcimem(u132, control, u132->hc_control); | |
1752 | if (retval) | |
1753 | return retval; | |
1754 | retval = u132_read_pcimem(u132, control, &control); | |
1755 | if (retval) | |
1756 | return retval; | |
1757 | } | |
1758 | retval = u132_write_pcimem(u132, ed_controlhead, 0x00000000); | |
1759 | if (retval) | |
1760 | return retval; | |
1761 | retval = u132_write_pcimem(u132, ed_bulkhead, 0x11000000); | |
1762 | if (retval) | |
1763 | return retval; | |
1764 | retval = u132_write_pcimem(u132, hcca, 0x00000000); | |
1765 | if (retval) | |
1766 | return retval; | |
1767 | retval = u132_periodic_reinit(u132); | |
1768 | if (retval) | |
1769 | return retval; | |
1770 | retval = u132_read_pcimem(u132, fminterval, &fminterval); | |
1771 | if (retval) | |
1772 | return retval; | |
1773 | retval = u132_read_pcimem(u132, periodicstart, &periodicstart); | |
1774 | if (retval) | |
1775 | return retval; | |
1776 | if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) { | |
1777 | if (!(u132->flags & OHCI_QUIRK_INITRESET)) { | |
1778 | u132->flags |= OHCI_QUIRK_INITRESET; | |
1779 | goto retry; | |
1780 | } else | |
1781 | dev_err(&u132->platform_dev->dev, "init err(%08x %04x)" | |
1782 | "\n", fminterval, periodicstart); | |
1783 | } /* start controller operations */ | |
1784 | u132->hc_control &= OHCI_CTRL_RWC; | |
1785 | u132->hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER; | |
1786 | retval = u132_write_pcimem(u132, control, u132->hc_control); | |
1787 | if (retval) | |
1788 | return retval; | |
1789 | retval = u132_write_pcimem_byte(u132, cmdstatus, OHCI_BLF); | |
1790 | if (retval) | |
1791 | return retval; | |
1792 | retval = u132_read_pcimem(u132, cmdstatus, &cmdstatus); | |
1793 | if (retval) | |
1794 | return retval; | |
1795 | retval = u132_read_pcimem(u132, control, &control); | |
1796 | if (retval) | |
1797 | return retval; | |
1798 | u132_to_hcd(u132)->state = HC_STATE_RUNNING; | |
1799 | retval = u132_write_pcimem(u132, roothub.status, RH_HS_DRWE); | |
1800 | if (retval) | |
1801 | return retval; | |
1802 | retval = u132_write_pcimem(u132, intrstatus, mask); | |
1803 | if (retval) | |
1804 | return retval; | |
1805 | retval = u132_write_pcimem(u132, intrdisable, | |
1806 | OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO | | |
1807 | OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH | | |
1808 | OHCI_INTR_SO); | |
1809 | if (retval) | |
1810 | return retval; /* handle root hub init quirks ... */ | |
1811 | retval = u132_read_pcimem(u132, roothub.a, &roothub_a); | |
1812 | if (retval) | |
1813 | return retval; | |
1814 | roothub_a &= ~(RH_A_PSM | RH_A_OCPM); | |
1815 | if (u132->flags & OHCI_QUIRK_SUPERIO) { | |
1816 | roothub_a |= RH_A_NOCP; | |
1817 | roothub_a &= ~(RH_A_POTPGT | RH_A_NPS); | |
1818 | retval = u132_write_pcimem(u132, roothub.a, roothub_a); | |
1819 | if (retval) | |
1820 | return retval; | |
1821 | } else if ((u132->flags & OHCI_QUIRK_AMD756) || distrust_firmware) { | |
1822 | roothub_a |= RH_A_NPS; | |
1823 | retval = u132_write_pcimem(u132, roothub.a, roothub_a); | |
1824 | if (retval) | |
1825 | return retval; | |
1826 | } | |
1827 | retval = u132_write_pcimem(u132, roothub.status, RH_HS_LPSC); | |
1828 | if (retval) | |
1829 | return retval; | |
1830 | retval = u132_write_pcimem(u132, roothub.b, | |
1831 | (roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM); | |
1832 | if (retval) | |
1833 | return retval; | |
1834 | retval = u132_read_pcimem(u132, control, &control); | |
1835 | if (retval) | |
1836 | return retval; | |
1837 | mdelay((roothub_a >> 23) & 0x1fe); | |
1838 | u132_to_hcd(u132)->state = HC_STATE_RUNNING; | |
1839 | return 0; | |
1840 | } | |
1841 | ||
1842 | static void u132_hcd_stop(struct usb_hcd *hcd) | |
1843 | { | |
1844 | struct u132 *u132 = hcd_to_u132(hcd); | |
1845 | if (u132->going > 1) { | |
1846 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1847 | , u132->going); | |
1848 | } else if (u132->going > 0) { | |
1849 | dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" | |
1850 | "ed\n", hcd); | |
1851 | } else { | |
1852 | down(&u132->sw_lock); | |
1853 | msleep(100); | |
1854 | u132_power(u132, 0); | |
1855 | up(&u132->sw_lock); | |
1856 | } | |
1857 | } | |
1858 | ||
1859 | static int u132_hcd_start(struct usb_hcd *hcd) | |
1860 | { | |
1861 | struct u132 *u132 = hcd_to_u132(hcd); | |
1862 | if (u132->going > 1) { | |
1863 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1864 | , u132->going); | |
1865 | return -ENODEV; | |
1866 | } else if (u132->going > 0) { | |
1867 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
1868 | return -ESHUTDOWN; | |
1869 | } else if (hcd->self.controller) { | |
1870 | int retval; | |
1871 | struct platform_device *pdev = | |
1872 | to_platform_device(hcd->self.controller); | |
1873 | u16 vendor = ((struct u132_platform_data *) | |
1874 | (pdev->dev.platform_data))->vendor; | |
1875 | u16 device = ((struct u132_platform_data *) | |
1876 | (pdev->dev.platform_data))->device; | |
1877 | down(&u132->sw_lock); | |
1878 | msleep(10); | |
1879 | if (vendor == PCI_VENDOR_ID_AMD && device == 0x740c) { | |
1880 | u132->flags = OHCI_QUIRK_AMD756; | |
1881 | } else if (vendor == PCI_VENDOR_ID_OPTI && device == 0xc861) { | |
1882 | dev_err(&u132->platform_dev->dev, "WARNING: OPTi workar" | |
1883 | "ounds unavailable\n"); | |
1884 | } else if (vendor == PCI_VENDOR_ID_COMPAQ && device == 0xa0f8) | |
1885 | u132->flags |= OHCI_QUIRK_ZFMICRO; | |
1886 | retval = u132_run(u132); | |
1887 | if (retval) { | |
1888 | u132_disable(u132); | |
1889 | u132->going = 1; | |
1890 | } | |
1891 | msleep(100); | |
1892 | up(&u132->sw_lock); | |
1893 | return retval; | |
1894 | } else { | |
1895 | dev_err(&u132->platform_dev->dev, "platform_device missing\n"); | |
1896 | return -ENODEV; | |
1897 | } | |
1898 | } | |
1899 | ||
1900 | static int u132_hcd_reset(struct usb_hcd *hcd) | |
1901 | { | |
1902 | struct u132 *u132 = hcd_to_u132(hcd); | |
1903 | if (u132->going > 1) { | |
1904 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1905 | , u132->going); | |
1906 | return -ENODEV; | |
1907 | } else if (u132->going > 0) { | |
1908 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
1909 | return -ESHUTDOWN; | |
1910 | } else { | |
1911 | int retval; | |
1912 | down(&u132->sw_lock); | |
1913 | retval = u132_init(u132); | |
1914 | if (retval) { | |
1915 | u132_disable(u132); | |
1916 | u132->going = 1; | |
1917 | } | |
1918 | up(&u132->sw_lock); | |
1919 | return retval; | |
1920 | } | |
1921 | } | |
1922 | ||
1923 | static int create_endpoint_and_queue_int(struct u132 *u132, | |
1924 | struct u132_udev *udev, struct usb_host_endpoint *hep, struct urb *urb, | |
1925 | struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address, | |
1926 | gfp_t mem_flags) | |
1927 | { | |
1928 | struct u132_ring *ring; | |
1929 | unsigned long irqs; | |
1930 | u8 endp_number = ++u132->num_endpoints; | |
1931 | struct u132_endp *endp = hep->hcpriv = u132->endp[endp_number - 1] = | |
1932 | kmalloc(sizeof(struct u132_endp), mem_flags); | |
1933 | if (!endp) { | |
1934 | return -ENOMEM; | |
1935 | } | |
c4028958 | 1936 | INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
d774efea TO |
1937 | spin_lock_init(&endp->queue_lock.slock); |
1938 | INIT_LIST_HEAD(&endp->urb_more); | |
1939 | ring = endp->ring = &u132->ring[0]; | |
1940 | if (ring->curr_endp) { | |
1941 | list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); | |
1942 | } else { | |
1943 | INIT_LIST_HEAD(&endp->endp_ring); | |
1944 | ring->curr_endp = endp; | |
1945 | } | |
1946 | ring->length += 1; | |
1947 | endp->dequeueing = 0; | |
1948 | endp->edset_flush = 0; | |
1949 | endp->active = 0; | |
1950 | endp->delayed = 0; | |
1951 | endp->endp_number = endp_number; | |
1952 | endp->u132 = u132; | |
1953 | endp->hep = hep; | |
1954 | endp->pipetype = usb_pipetype(urb->pipe); | |
1955 | u132_endp_init_kref(u132, endp); | |
1956 | if (usb_pipein(urb->pipe)) { | |
1957 | endp->toggle_bits = 0x2; | |
1958 | usb_settoggle(udev->usb_device, usb_endp, 0, 0); | |
1959 | endp->input = 1; | |
1960 | endp->output = 0; | |
1961 | udev->endp_number_in[usb_endp] = endp_number; | |
1962 | u132_udev_get_kref(u132, udev); | |
1963 | } else { | |
1964 | endp->toggle_bits = 0x2; | |
1965 | usb_settoggle(udev->usb_device, usb_endp, 1, 0); | |
1966 | endp->input = 0; | |
1967 | endp->output = 1; | |
1968 | udev->endp_number_out[usb_endp] = endp_number; | |
1969 | u132_udev_get_kref(u132, udev); | |
1970 | } | |
1971 | urb->hcpriv = u132; | |
1972 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
1973 | endp->delayed = 1; | |
1974 | endp->jiffies = jiffies + msecs_to_jiffies(urb->interval); | |
1975 | endp->udev_number = address; | |
1976 | endp->usb_addr = usb_addr; | |
1977 | endp->usb_endp = usb_endp; | |
1978 | endp->queue_size = 1; | |
1979 | endp->queue_last = 0; | |
1980 | endp->queue_next = 0; | |
1981 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
1982 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
1983 | u132_endp_queue_work(u132, endp, msecs_to_jiffies(urb->interval)); | |
1984 | return 0; | |
1985 | } | |
1986 | ||
1987 | static int queue_int_on_old_endpoint(struct u132 *u132, struct u132_udev *udev, | |
1988 | struct usb_host_endpoint *hep, struct urb *urb, | |
1989 | struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, | |
1990 | u8 usb_endp, u8 address) | |
1991 | { | |
1992 | urb->hcpriv = u132; | |
1993 | endp->delayed = 1; | |
1994 | endp->jiffies = jiffies + msecs_to_jiffies(urb->interval); | |
1995 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
1996 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
1997 | } else { | |
1998 | struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq), | |
1999 | GFP_ATOMIC); | |
2000 | if (urbq == NULL) { | |
2001 | endp->queue_size -= 1; | |
2002 | return -ENOMEM; | |
2003 | } else { | |
2004 | list_add_tail(&urbq->urb_more, &endp->urb_more); | |
2005 | urbq->urb = urb; | |
2006 | } | |
2007 | } | |
2008 | return 0; | |
2009 | } | |
2010 | ||
2011 | static int create_endpoint_and_queue_bulk(struct u132 *u132, | |
2012 | struct u132_udev *udev, struct usb_host_endpoint *hep, struct urb *urb, | |
2013 | struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address, | |
2014 | gfp_t mem_flags) | |
2015 | { | |
2016 | int ring_number; | |
2017 | struct u132_ring *ring; | |
2018 | unsigned long irqs; | |
2019 | u8 endp_number = ++u132->num_endpoints; | |
2020 | struct u132_endp *endp = hep->hcpriv = u132->endp[endp_number - 1] = | |
2021 | kmalloc(sizeof(struct u132_endp), mem_flags); | |
2022 | if (!endp) { | |
2023 | return -ENOMEM; | |
2024 | } | |
c4028958 | 2025 | INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
d774efea TO |
2026 | spin_lock_init(&endp->queue_lock.slock); |
2027 | INIT_LIST_HEAD(&endp->urb_more); | |
2028 | endp->dequeueing = 0; | |
2029 | endp->edset_flush = 0; | |
2030 | endp->active = 0; | |
2031 | endp->delayed = 0; | |
2032 | endp->endp_number = endp_number; | |
2033 | endp->u132 = u132; | |
2034 | endp->hep = hep; | |
2035 | endp->pipetype = usb_pipetype(urb->pipe); | |
2036 | u132_endp_init_kref(u132, endp); | |
2037 | if (usb_pipein(urb->pipe)) { | |
2038 | endp->toggle_bits = 0x2; | |
2039 | usb_settoggle(udev->usb_device, usb_endp, 0, 0); | |
2040 | ring_number = 3; | |
2041 | endp->input = 1; | |
2042 | endp->output = 0; | |
2043 | udev->endp_number_in[usb_endp] = endp_number; | |
2044 | u132_udev_get_kref(u132, udev); | |
2045 | } else { | |
2046 | endp->toggle_bits = 0x2; | |
2047 | usb_settoggle(udev->usb_device, usb_endp, 1, 0); | |
2048 | ring_number = 2; | |
2049 | endp->input = 0; | |
2050 | endp->output = 1; | |
2051 | udev->endp_number_out[usb_endp] = endp_number; | |
2052 | u132_udev_get_kref(u132, udev); | |
2053 | } | |
2054 | ring = endp->ring = &u132->ring[ring_number - 1]; | |
2055 | if (ring->curr_endp) { | |
2056 | list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); | |
2057 | } else { | |
2058 | INIT_LIST_HEAD(&endp->endp_ring); | |
2059 | ring->curr_endp = endp; | |
2060 | } | |
2061 | ring->length += 1; | |
2062 | urb->hcpriv = u132; | |
2063 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
2064 | endp->udev_number = address; | |
2065 | endp->usb_addr = usb_addr; | |
2066 | endp->usb_endp = usb_endp; | |
2067 | endp->queue_size = 1; | |
2068 | endp->queue_last = 0; | |
2069 | endp->queue_next = 0; | |
2070 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
2071 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2072 | u132_endp_queue_work(u132, endp, 0); | |
2073 | return 0; | |
2074 | } | |
2075 | ||
2076 | static int queue_bulk_on_old_endpoint(struct u132 *u132, struct u132_udev *udev, | |
2077 | struct usb_host_endpoint *hep, struct urb *urb, | |
2078 | struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, | |
2079 | u8 usb_endp, u8 address) | |
2080 | { | |
2081 | urb->hcpriv = u132; | |
2082 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
2083 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
2084 | } else { | |
2085 | struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq), | |
2086 | GFP_ATOMIC); | |
2087 | if (urbq == NULL) { | |
2088 | endp->queue_size -= 1; | |
2089 | return -ENOMEM; | |
2090 | } else { | |
2091 | list_add_tail(&urbq->urb_more, &endp->urb_more); | |
2092 | urbq->urb = urb; | |
2093 | } | |
2094 | } | |
2095 | return 0; | |
2096 | } | |
2097 | ||
2098 | static int create_endpoint_and_queue_control(struct u132 *u132, | |
2099 | struct usb_host_endpoint *hep, struct urb *urb, | |
2100 | struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, | |
2101 | gfp_t mem_flags) | |
2102 | { | |
2103 | struct u132_ring *ring; | |
2104 | u8 endp_number = ++u132->num_endpoints; | |
2105 | struct u132_endp *endp = hep->hcpriv = u132->endp[endp_number - 1] = | |
2106 | kmalloc(sizeof(struct u132_endp), mem_flags); | |
2107 | if (!endp) { | |
2108 | return -ENOMEM; | |
2109 | } | |
c4028958 | 2110 | INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
d774efea TO |
2111 | spin_lock_init(&endp->queue_lock.slock); |
2112 | INIT_LIST_HEAD(&endp->urb_more); | |
2113 | ring = endp->ring = &u132->ring[0]; | |
2114 | if (ring->curr_endp) { | |
2115 | list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); | |
2116 | } else { | |
2117 | INIT_LIST_HEAD(&endp->endp_ring); | |
2118 | ring->curr_endp = endp; | |
2119 | } | |
2120 | ring->length += 1; | |
2121 | endp->dequeueing = 0; | |
2122 | endp->edset_flush = 0; | |
2123 | endp->active = 0; | |
2124 | endp->delayed = 0; | |
2125 | endp->endp_number = endp_number; | |
2126 | endp->u132 = u132; | |
2127 | endp->hep = hep; | |
2128 | u132_endp_init_kref(u132, endp); | |
2129 | u132_endp_get_kref(u132, endp); | |
2130 | if (usb_addr == 0) { | |
2131 | unsigned long irqs; | |
2132 | u8 address = u132->addr[usb_addr].address; | |
2133 | struct u132_udev *udev = &u132->udev[address]; | |
2134 | endp->udev_number = address; | |
2135 | endp->usb_addr = usb_addr; | |
2136 | endp->usb_endp = usb_endp; | |
2137 | endp->input = 1; | |
2138 | endp->output = 1; | |
2139 | endp->pipetype = usb_pipetype(urb->pipe); | |
2140 | u132_udev_init_kref(u132, udev); | |
2141 | u132_udev_get_kref(u132, udev); | |
2142 | udev->endp_number_in[usb_endp] = endp_number; | |
2143 | udev->endp_number_out[usb_endp] = endp_number; | |
2144 | urb->hcpriv = u132; | |
2145 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
2146 | endp->queue_size = 1; | |
2147 | endp->queue_last = 0; | |
2148 | endp->queue_next = 0; | |
2149 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
2150 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2151 | u132_endp_queue_work(u132, endp, 0); | |
2152 | return 0; | |
2153 | } else { /*(usb_addr > 0) */ | |
2154 | unsigned long irqs; | |
2155 | u8 address = u132->addr[usb_addr].address; | |
2156 | struct u132_udev *udev = &u132->udev[address]; | |
2157 | endp->udev_number = address; | |
2158 | endp->usb_addr = usb_addr; | |
2159 | endp->usb_endp = usb_endp; | |
2160 | endp->input = 1; | |
2161 | endp->output = 1; | |
2162 | endp->pipetype = usb_pipetype(urb->pipe); | |
2163 | u132_udev_get_kref(u132, udev); | |
2164 | udev->enumeration = 2; | |
2165 | udev->endp_number_in[usb_endp] = endp_number; | |
2166 | udev->endp_number_out[usb_endp] = endp_number; | |
2167 | urb->hcpriv = u132; | |
2168 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
2169 | endp->queue_size = 1; | |
2170 | endp->queue_last = 0; | |
2171 | endp->queue_next = 0; | |
2172 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
2173 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2174 | u132_endp_queue_work(u132, endp, 0); | |
2175 | return 0; | |
2176 | } | |
2177 | } | |
2178 | ||
2179 | static int queue_control_on_old_endpoint(struct u132 *u132, | |
2180 | struct usb_host_endpoint *hep, struct urb *urb, | |
2181 | struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, | |
2182 | u8 usb_endp) | |
2183 | { | |
2184 | if (usb_addr == 0) { | |
2185 | if (usb_pipein(urb->pipe)) { | |
2186 | urb->hcpriv = u132; | |
2187 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
2188 | endp->urb_list[ENDP_QUEUE_MASK & | |
2189 | endp->queue_last++] = urb; | |
2190 | } else { | |
2191 | struct u132_urbq *urbq = | |
2192 | kmalloc(sizeof(struct u132_urbq), | |
2193 | GFP_ATOMIC); | |
2194 | if (urbq == NULL) { | |
2195 | endp->queue_size -= 1; | |
2196 | return -ENOMEM; | |
2197 | } else { | |
2198 | list_add_tail(&urbq->urb_more, | |
2199 | &endp->urb_more); | |
2200 | urbq->urb = urb; | |
2201 | } | |
2202 | } | |
2203 | return 0; | |
2204 | } else { /* usb_pipeout(urb->pipe) */ | |
2205 | struct u132_addr *addr = &u132->addr[usb_dev->devnum]; | |
2206 | int I = MAX_U132_UDEVS; | |
2207 | int i = 0; | |
2208 | while (--I > 0) { | |
2209 | struct u132_udev *udev = &u132->udev[++i]; | |
2210 | if (udev->usb_device) { | |
2211 | continue; | |
2212 | } else { | |
2213 | udev->enumeration = 1; | |
2214 | u132->addr[0].address = i; | |
2215 | endp->udev_number = i; | |
2216 | udev->udev_number = i; | |
2217 | udev->usb_addr = usb_dev->devnum; | |
2218 | u132_udev_init_kref(u132, udev); | |
2219 | udev->endp_number_in[usb_endp] = | |
2220 | endp->endp_number; | |
2221 | u132_udev_get_kref(u132, udev); | |
2222 | udev->endp_number_out[usb_endp] = | |
2223 | endp->endp_number; | |
2224 | udev->usb_device = usb_dev; | |
2225 | ((u8 *) (urb->setup_packet))[2] = | |
2226 | addr->address = i; | |
2227 | u132_udev_get_kref(u132, udev); | |
2228 | break; | |
2229 | } | |
2230 | } | |
2231 | if (I == 0) { | |
2232 | dev_err(&u132->platform_dev->dev, "run out of d" | |
2233 | "evice space\n"); | |
2234 | return -EINVAL; | |
2235 | } | |
2236 | urb->hcpriv = u132; | |
2237 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
2238 | endp->urb_list[ENDP_QUEUE_MASK & | |
2239 | endp->queue_last++] = urb; | |
2240 | } else { | |
2241 | struct u132_urbq *urbq = | |
2242 | kmalloc(sizeof(struct u132_urbq), | |
2243 | GFP_ATOMIC); | |
2244 | if (urbq == NULL) { | |
2245 | endp->queue_size -= 1; | |
2246 | return -ENOMEM; | |
2247 | } else { | |
2248 | list_add_tail(&urbq->urb_more, | |
2249 | &endp->urb_more); | |
2250 | urbq->urb = urb; | |
2251 | } | |
2252 | } | |
2253 | return 0; | |
2254 | } | |
2255 | } else { /*(usb_addr > 0) */ | |
2256 | u8 address = u132->addr[usb_addr].address; | |
2257 | struct u132_udev *udev = &u132->udev[address]; | |
2258 | urb->hcpriv = u132; | |
2259 | if (udev->enumeration == 2) { | |
2260 | } else | |
2261 | udev->enumeration = 2; | |
2262 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
2263 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = | |
2264 | urb; | |
2265 | } else { | |
2266 | struct u132_urbq *urbq = | |
2267 | kmalloc(sizeof(struct u132_urbq), GFP_ATOMIC); | |
2268 | if (urbq == NULL) { | |
2269 | endp->queue_size -= 1; | |
2270 | return -ENOMEM; | |
2271 | } else { | |
2272 | list_add_tail(&urbq->urb_more, &endp->urb_more); | |
2273 | urbq->urb = urb; | |
2274 | } | |
2275 | } | |
2276 | return 0; | |
2277 | } | |
2278 | } | |
2279 | ||
2280 | static int u132_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *hep, | |
2281 | struct urb *urb, gfp_t mem_flags) | |
2282 | { | |
2283 | struct u132 *u132 = hcd_to_u132(hcd); | |
2284 | if (irqs_disabled()) { | |
2285 | if (__GFP_WAIT & mem_flags) { | |
2286 | printk(KERN_ERR "invalid context for function that migh" | |
2287 | "t sleep\n"); | |
2288 | return -EINVAL; | |
2289 | } | |
2290 | } | |
2291 | if (u132->going > 1) { | |
2292 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2293 | , u132->going); | |
2294 | return -ENODEV; | |
2295 | } else if (u132->going > 0) { | |
2296 | dev_err(&u132->platform_dev->dev, "device is being removed urb=" | |
2297 | "%p status=%d\n", urb, urb->status); | |
2298 | return -ESHUTDOWN; | |
2299 | } else { | |
2300 | u8 usb_addr = usb_pipedevice(urb->pipe); | |
2301 | u8 usb_endp = usb_pipeendpoint(urb->pipe); | |
2302 | struct usb_device *usb_dev = urb->dev; | |
2303 | if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) { | |
2304 | u8 address = u132->addr[usb_addr].address; | |
2305 | struct u132_udev *udev = &u132->udev[address]; | |
2306 | struct u132_endp *endp = hep->hcpriv; | |
2307 | urb->actual_length = 0; | |
2308 | if (endp) { | |
2309 | unsigned long irqs; | |
2310 | int retval; | |
2311 | spin_lock_irqsave(&endp->queue_lock.slock, | |
2312 | irqs); | |
2313 | retval = queue_int_on_old_endpoint(u132, udev, | |
2314 | hep, urb, usb_dev, endp, usb_addr, | |
2315 | usb_endp, address); | |
2316 | spin_unlock_irqrestore(&endp->queue_lock.slock, | |
2317 | irqs); | |
2318 | if (retval) { | |
2319 | return retval; | |
2320 | } else { | |
2321 | u132_endp_queue_work(u132, endp, | |
2322 | msecs_to_jiffies(urb->interval)) | |
2323 | ; | |
2324 | return 0; | |
2325 | } | |
2326 | } else if (u132->num_endpoints == MAX_U132_ENDPS) { | |
2327 | return -EINVAL; | |
2328 | } else { /*(endp == NULL) */ | |
2329 | return create_endpoint_and_queue_int(u132, udev, | |
2330 | hep, urb, usb_dev, usb_addr, usb_endp, | |
2331 | address, mem_flags); | |
2332 | } | |
2333 | } else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { | |
2334 | dev_err(&u132->platform_dev->dev, "the hardware does no" | |
2335 | "t support PIPE_ISOCHRONOUS\n"); | |
2336 | return -EINVAL; | |
2337 | } else if (usb_pipetype(urb->pipe) == PIPE_BULK) { | |
2338 | u8 address = u132->addr[usb_addr].address; | |
2339 | struct u132_udev *udev = &u132->udev[address]; | |
2340 | struct u132_endp *endp = hep->hcpriv; | |
2341 | urb->actual_length = 0; | |
2342 | if (endp) { | |
2343 | unsigned long irqs; | |
2344 | int retval; | |
2345 | spin_lock_irqsave(&endp->queue_lock.slock, | |
2346 | irqs); | |
2347 | retval = queue_bulk_on_old_endpoint(u132, udev, | |
2348 | hep, urb, usb_dev, endp, usb_addr, | |
2349 | usb_endp, address); | |
2350 | spin_unlock_irqrestore(&endp->queue_lock.slock, | |
2351 | irqs); | |
2352 | if (retval) { | |
2353 | return retval; | |
2354 | } else { | |
2355 | u132_endp_queue_work(u132, endp, 0); | |
2356 | return 0; | |
2357 | } | |
2358 | } else if (u132->num_endpoints == MAX_U132_ENDPS) { | |
2359 | return -EINVAL; | |
2360 | } else | |
2361 | return create_endpoint_and_queue_bulk(u132, | |
2362 | udev, hep, urb, usb_dev, usb_addr, | |
2363 | usb_endp, address, mem_flags); | |
2364 | } else { | |
2365 | struct u132_endp *endp = hep->hcpriv; | |
2366 | u16 urb_size = 8; | |
2367 | u8 *b = urb->setup_packet; | |
2368 | int i = 0; | |
2369 | char data[30 *3 + 4]; | |
2370 | char *d = data; | |
2371 | int m = (sizeof(data) - 1) / 3; | |
2372 | int l = 0; | |
2373 | data[0] = 0; | |
2374 | while (urb_size-- > 0) { | |
2375 | if (i > m) { | |
2376 | } else if (i++ < m) { | |
2377 | int w = sprintf(d, " %02X", *b++); | |
2378 | d += w; | |
2379 | l += w; | |
2380 | } else | |
2381 | d += sprintf(d, " .."); | |
2382 | } | |
2383 | if (endp) { | |
2384 | unsigned long irqs; | |
2385 | int retval; | |
2386 | spin_lock_irqsave(&endp->queue_lock.slock, | |
2387 | irqs); | |
2388 | retval = queue_control_on_old_endpoint(u132, | |
2389 | hep, urb, usb_dev, endp, usb_addr, | |
2390 | usb_endp); | |
2391 | spin_unlock_irqrestore(&endp->queue_lock.slock, | |
2392 | irqs); | |
2393 | if (retval) { | |
2394 | return retval; | |
2395 | } else { | |
2396 | u132_endp_queue_work(u132, endp, 0); | |
2397 | return 0; | |
2398 | } | |
2399 | } else if (u132->num_endpoints == MAX_U132_ENDPS) { | |
2400 | return -EINVAL; | |
2401 | } else | |
2402 | return create_endpoint_and_queue_control(u132, | |
2403 | hep, urb, usb_dev, usb_addr, usb_endp, | |
2404 | mem_flags); | |
2405 | } | |
2406 | } | |
2407 | } | |
2408 | ||
2409 | static int dequeue_from_overflow_chain(struct u132 *u132, | |
2410 | struct u132_endp *endp, struct urb *urb) | |
2411 | { | |
2412 | struct list_head *scan; | |
2413 | struct list_head *head = &endp->urb_more; | |
2414 | list_for_each(scan, head) { | |
2415 | struct u132_urbq *urbq = list_entry(scan, struct u132_urbq, | |
2416 | urb_more); | |
2417 | if (urbq->urb == urb) { | |
2418 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
2419 | list_del(scan); | |
2420 | endp->queue_size -= 1; | |
2421 | urb->error_count = 0; | |
2422 | urb->hcpriv = NULL; | |
7d12e780 | 2423 | usb_hcd_giveback_urb(hcd, urb); |
d774efea TO |
2424 | return 0; |
2425 | } else | |
2426 | continue; | |
2427 | } | |
2428 | dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]=%p ring" | |
2429 | "[%d] %c%c usb_endp=%d usb_addr=%d size=%d next=%04X last=%04X" | |
2430 | "\n", urb, endp->endp_number, endp, endp->ring->number, | |
2431 | endp->input ? 'I' : ' ', endp->output ? 'O' : ' ', | |
2432 | endp->usb_endp, endp->usb_addr, endp->queue_size, | |
2433 | endp->queue_next, endp->queue_last); | |
2434 | return -EINVAL; | |
2435 | } | |
2436 | ||
2437 | static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp, | |
2438 | struct urb *urb) | |
2439 | { | |
2440 | unsigned long irqs; | |
2441 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
2442 | if (endp->queue_size == 0) { | |
2443 | dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]" | |
2444 | "=%p ring[%d] %c%c usb_endp=%d usb_addr=%d\n", urb, | |
2445 | endp->endp_number, endp, endp->ring->number, | |
2446 | endp->input ? 'I' : ' ', endp->output ? 'O' : ' ', | |
2447 | endp->usb_endp, endp->usb_addr); | |
2448 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2449 | return -EINVAL; | |
2450 | } | |
2451 | if (urb == endp->urb_list[ENDP_QUEUE_MASK & endp->queue_next]) { | |
2452 | if (endp->active) { | |
2453 | endp->dequeueing = 1; | |
2454 | endp->edset_flush = 1; | |
2455 | u132_endp_queue_work(u132, endp, 0); | |
2456 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2457 | urb->hcpriv = NULL; | |
2458 | return 0; | |
2459 | } else { | |
2460 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2461 | u132_hcd_abandon_urb(u132, endp, urb, urb->status); | |
2462 | return 0; | |
2463 | } | |
2464 | } else { | |
2465 | u16 queue_list = 0; | |
2466 | u16 queue_size = endp->queue_size; | |
2467 | u16 queue_scan = endp->queue_next; | |
2468 | struct urb **urb_slot = NULL; | |
2469 | while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) { | |
2470 | if (urb == endp->urb_list[ENDP_QUEUE_MASK & | |
2471 | ++queue_scan]) { | |
2472 | urb_slot = &endp->urb_list[ENDP_QUEUE_MASK & | |
2473 | queue_scan]; | |
2474 | break; | |
2475 | } else | |
2476 | continue; | |
2477 | } | |
2478 | while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) { | |
2479 | *urb_slot = endp->urb_list[ENDP_QUEUE_MASK & | |
2480 | ++queue_scan]; | |
2481 | urb_slot = &endp->urb_list[ENDP_QUEUE_MASK & | |
2482 | queue_scan]; | |
2483 | } | |
2484 | if (urb_slot) { | |
2485 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
2486 | endp->queue_size -= 1; | |
2487 | if (list_empty(&endp->urb_more)) { | |
2488 | spin_unlock_irqrestore(&endp->queue_lock.slock, | |
2489 | irqs); | |
2490 | } else { | |
2491 | struct list_head *next = endp->urb_more.next; | |
2492 | struct u132_urbq *urbq = list_entry(next, | |
2493 | struct u132_urbq, urb_more); | |
2494 | list_del(next); | |
2495 | *urb_slot = urbq->urb; | |
2496 | spin_unlock_irqrestore(&endp->queue_lock.slock, | |
2497 | irqs); | |
2498 | kfree(urbq); | |
2499 | } urb->error_count = 0; | |
2500 | urb->hcpriv = NULL; | |
7d12e780 | 2501 | usb_hcd_giveback_urb(hcd, urb); |
d774efea TO |
2502 | return 0; |
2503 | } else if (list_empty(&endp->urb_more)) { | |
2504 | dev_err(&u132->platform_dev->dev, "urb=%p not found in " | |
2505 | "endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr" | |
2506 | "=%d size=%d next=%04X last=%04X\n", urb, | |
2507 | endp->endp_number, endp, endp->ring->number, | |
2508 | endp->input ? 'I' : ' ', | |
2509 | endp->output ? 'O' : ' ', endp->usb_endp, | |
2510 | endp->usb_addr, endp->queue_size, | |
2511 | endp->queue_next, endp->queue_last); | |
2512 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2513 | return -EINVAL; | |
2514 | } else { | |
2515 | int retval = dequeue_from_overflow_chain(u132, endp, | |
2516 | urb); | |
2517 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2518 | return retval; | |
2519 | } | |
2520 | } | |
2521 | } | |
2522 | ||
2523 | static int u132_urb_dequeue(struct usb_hcd *hcd, struct urb *urb) | |
2524 | { | |
2525 | struct u132 *u132 = hcd_to_u132(hcd); | |
2526 | if (u132->going > 2) { | |
2527 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2528 | , u132->going); | |
2529 | return -ENODEV; | |
2530 | } else { | |
2531 | u8 usb_addr = usb_pipedevice(urb->pipe); | |
2532 | u8 usb_endp = usb_pipeendpoint(urb->pipe); | |
2533 | u8 address = u132->addr[usb_addr].address; | |
2534 | struct u132_udev *udev = &u132->udev[address]; | |
2535 | if (usb_pipein(urb->pipe)) { | |
2536 | u8 endp_number = udev->endp_number_in[usb_endp]; | |
2537 | struct u132_endp *endp = u132->endp[endp_number - 1]; | |
2538 | return u132_endp_urb_dequeue(u132, endp, urb); | |
2539 | } else { | |
2540 | u8 endp_number = udev->endp_number_out[usb_endp]; | |
2541 | struct u132_endp *endp = u132->endp[endp_number - 1]; | |
2542 | return u132_endp_urb_dequeue(u132, endp, urb); | |
2543 | } | |
2544 | } | |
2545 | } | |
2546 | ||
2547 | static void u132_endpoint_disable(struct usb_hcd *hcd, | |
2548 | struct usb_host_endpoint *hep) | |
2549 | { | |
2550 | struct u132 *u132 = hcd_to_u132(hcd); | |
2551 | if (u132->going > 2) { | |
2552 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2553 | , u132->going); | |
2554 | } else { | |
2555 | struct u132_endp *endp = hep->hcpriv; | |
2556 | if (endp) | |
2557 | u132_endp_put_kref(u132, endp); | |
2558 | } | |
2559 | } | |
2560 | ||
2561 | static int u132_get_frame(struct usb_hcd *hcd) | |
2562 | { | |
2563 | struct u132 *u132 = hcd_to_u132(hcd); | |
2564 | if (u132->going > 1) { | |
2565 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2566 | , u132->going); | |
2567 | return -ENODEV; | |
2568 | } else if (u132->going > 0) { | |
2569 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2570 | return -ESHUTDOWN; | |
2571 | } else { | |
2572 | int frame = 0; | |
2573 | dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n"); | |
2574 | msleep(100); | |
2575 | return frame; | |
2576 | } | |
2577 | } | |
2578 | ||
2579 | static int u132_roothub_descriptor(struct u132 *u132, | |
2580 | struct usb_hub_descriptor *desc) | |
2581 | { | |
2582 | int retval; | |
2583 | u16 temp; | |
2584 | u32 rh_a = -1; | |
2585 | u32 rh_b = -1; | |
2586 | retval = u132_read_pcimem(u132, roothub.a, &rh_a); | |
2587 | if (retval) | |
2588 | return retval; | |
2589 | desc->bDescriptorType = 0x29; | |
2590 | desc->bPwrOn2PwrGood = (rh_a & RH_A_POTPGT) >> 24; | |
2591 | desc->bHubContrCurrent = 0; | |
2592 | desc->bNbrPorts = u132->num_ports; | |
2593 | temp = 1 + (u132->num_ports / 8); | |
2594 | desc->bDescLength = 7 + 2 *temp; | |
2595 | temp = 0; | |
2596 | if (rh_a & RH_A_NPS) | |
2597 | temp |= 0x0002; | |
2598 | if (rh_a & RH_A_PSM) | |
2599 | temp |= 0x0001; | |
2600 | if (rh_a & RH_A_NOCP) { | |
2601 | temp |= 0x0010; | |
2602 | } else if (rh_a & RH_A_OCPM) | |
2603 | temp |= 0x0008; | |
2604 | desc->wHubCharacteristics = cpu_to_le16(temp); | |
2605 | retval = u132_read_pcimem(u132, roothub.b, &rh_b); | |
2606 | if (retval) | |
2607 | return retval; | |
2608 | memset(desc->bitmap, 0xff, sizeof(desc->bitmap)); | |
2609 | desc->bitmap[0] = rh_b & RH_B_DR; | |
2610 | if (u132->num_ports > 7) { | |
2611 | desc->bitmap[1] = (rh_b & RH_B_DR) >> 8; | |
2612 | desc->bitmap[2] = 0xff; | |
2613 | } else | |
2614 | desc->bitmap[1] = 0xff; | |
2615 | return 0; | |
2616 | } | |
2617 | ||
2618 | static int u132_roothub_status(struct u132 *u132, __le32 *desc) | |
2619 | { | |
2620 | u32 rh_status = -1; | |
2621 | int ret_status = u132_read_pcimem(u132, roothub.status, &rh_status); | |
2622 | *desc = cpu_to_le32(rh_status); | |
2623 | return ret_status; | |
2624 | } | |
2625 | ||
2626 | static int u132_roothub_portstatus(struct u132 *u132, __le32 *desc, u16 wIndex) | |
2627 | { | |
2628 | if (wIndex == 0 || wIndex > u132->num_ports) { | |
2629 | return -EINVAL; | |
2630 | } else { | |
2631 | int port = wIndex - 1; | |
2632 | u32 rh_portstatus = -1; | |
2633 | int ret_portstatus = u132_read_pcimem(u132, | |
2634 | roothub.portstatus[port], &rh_portstatus); | |
2635 | *desc = cpu_to_le32(rh_portstatus); | |
2636 | if (*(u16 *) (desc + 2)) { | |
2637 | dev_info(&u132->platform_dev->dev, "Port %d Status Chan" | |
2638 | "ge = %08X\n", port, *desc); | |
2639 | } | |
2640 | return ret_portstatus; | |
2641 | } | |
2642 | } | |
2643 | ||
2644 | ||
2645 | /* this timer value might be vendor-specific ... */ | |
2646 | #define PORT_RESET_HW_MSEC 10 | |
2647 | #define PORT_RESET_MSEC 10 | |
2648 | /* wrap-aware logic morphed from <linux/jiffies.h> */ | |
2649 | #define tick_before(t1, t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0) | |
2650 | static int u132_roothub_portreset(struct u132 *u132, int port_index) | |
2651 | { | |
2652 | int retval; | |
2653 | u32 fmnumber; | |
2654 | u16 now; | |
2655 | u16 reset_done; | |
2656 | retval = u132_read_pcimem(u132, fmnumber, &fmnumber); | |
2657 | if (retval) | |
2658 | return retval; | |
2659 | now = fmnumber; | |
2660 | reset_done = now + PORT_RESET_MSEC; | |
2661 | do { | |
2662 | u32 portstat; | |
2663 | do { | |
2664 | retval = u132_read_pcimem(u132, | |
2665 | roothub.portstatus[port_index], &portstat); | |
2666 | if (retval) | |
2667 | return retval; | |
2668 | if (RH_PS_PRS & portstat) { | |
2669 | continue; | |
2670 | } else | |
2671 | break; | |
2672 | } while (tick_before(now, reset_done)); | |
2673 | if (RH_PS_PRS & portstat) | |
2674 | return -ENODEV; | |
2675 | if (RH_PS_CCS & portstat) { | |
2676 | if (RH_PS_PRSC & portstat) { | |
2677 | retval = u132_write_pcimem(u132, | |
2678 | roothub.portstatus[port_index], | |
2679 | RH_PS_PRSC); | |
2680 | if (retval) | |
2681 | return retval; | |
2682 | } | |
2683 | } else | |
2684 | break; /* start the next reset, | |
2685 | sleep till it's probably done */ | |
2686 | retval = u132_write_pcimem(u132, roothub.portstatus[port_index], | |
2687 | RH_PS_PRS); | |
2688 | if (retval) | |
2689 | return retval; | |
2690 | msleep(PORT_RESET_HW_MSEC); | |
2691 | retval = u132_read_pcimem(u132, fmnumber, &fmnumber); | |
2692 | if (retval) | |
2693 | return retval; | |
2694 | now = fmnumber; | |
2695 | } while (tick_before(now, reset_done)); | |
2696 | return 0; | |
2697 | } | |
2698 | ||
2699 | static int u132_roothub_setportfeature(struct u132 *u132, u16 wValue, | |
2700 | u16 wIndex) | |
2701 | { | |
2702 | if (wIndex == 0 || wIndex > u132->num_ports) { | |
2703 | return -EINVAL; | |
2704 | } else { | |
2705 | int retval; | |
2706 | int port_index = wIndex - 1; | |
2707 | struct u132_port *port = &u132->port[port_index]; | |
2708 | port->Status &= ~(1 << wValue); | |
2709 | switch (wValue) { | |
2710 | case USB_PORT_FEAT_SUSPEND: | |
2711 | retval = u132_write_pcimem(u132, | |
2712 | roothub.portstatus[port_index], RH_PS_PSS); | |
2713 | if (retval) | |
2714 | return retval; | |
2715 | return 0; | |
2716 | case USB_PORT_FEAT_POWER: | |
2717 | retval = u132_write_pcimem(u132, | |
2718 | roothub.portstatus[port_index], RH_PS_PPS); | |
2719 | if (retval) | |
2720 | return retval; | |
2721 | return 0; | |
2722 | case USB_PORT_FEAT_RESET: | |
2723 | retval = u132_roothub_portreset(u132, port_index); | |
2724 | if (retval) | |
2725 | return retval; | |
2726 | return 0; | |
2727 | default: | |
2728 | return -EPIPE; | |
2729 | } | |
2730 | } | |
2731 | } | |
2732 | ||
2733 | static int u132_roothub_clearportfeature(struct u132 *u132, u16 wValue, | |
2734 | u16 wIndex) | |
2735 | { | |
2736 | if (wIndex == 0 || wIndex > u132->num_ports) { | |
2737 | return -EINVAL; | |
2738 | } else { | |
2739 | int port_index = wIndex - 1; | |
2740 | u32 temp; | |
2741 | int retval; | |
2742 | struct u132_port *port = &u132->port[port_index]; | |
2743 | port->Status &= ~(1 << wValue); | |
2744 | switch (wValue) { | |
2745 | case USB_PORT_FEAT_ENABLE: | |
2746 | temp = RH_PS_CCS; | |
2747 | break; | |
2748 | case USB_PORT_FEAT_C_ENABLE: | |
2749 | temp = RH_PS_PESC; | |
2750 | break; | |
2751 | case USB_PORT_FEAT_SUSPEND: | |
2752 | temp = RH_PS_POCI; | |
2753 | if ((u132->hc_control & OHCI_CTRL_HCFS) | |
2754 | != OHCI_USB_OPER) { | |
2755 | dev_err(&u132->platform_dev->dev, "TODO resume_" | |
2756 | "root_hub\n"); | |
2757 | } | |
2758 | break; | |
2759 | case USB_PORT_FEAT_C_SUSPEND: | |
2760 | temp = RH_PS_PSSC; | |
2761 | break; | |
2762 | case USB_PORT_FEAT_POWER: | |
2763 | temp = RH_PS_LSDA; | |
2764 | break; | |
2765 | case USB_PORT_FEAT_C_CONNECTION: | |
2766 | temp = RH_PS_CSC; | |
2767 | break; | |
2768 | case USB_PORT_FEAT_C_OVER_CURRENT: | |
2769 | temp = RH_PS_OCIC; | |
2770 | break; | |
2771 | case USB_PORT_FEAT_C_RESET: | |
2772 | temp = RH_PS_PRSC; | |
2773 | break; | |
2774 | default: | |
2775 | return -EPIPE; | |
2776 | } | |
2777 | retval = u132_write_pcimem(u132, roothub.portstatus[port_index], | |
2778 | temp); | |
2779 | if (retval) | |
2780 | return retval; | |
2781 | return 0; | |
2782 | } | |
2783 | } | |
2784 | ||
2785 | ||
2786 | /* the virtual root hub timer IRQ checks for hub status*/ | |
2787 | static int u132_hub_status_data(struct usb_hcd *hcd, char *buf) | |
2788 | { | |
2789 | struct u132 *u132 = hcd_to_u132(hcd); | |
2790 | if (u132->going > 1) { | |
2791 | dev_err(&u132->platform_dev->dev, "device hcd=%p has been remov" | |
2792 | "ed %d\n", hcd, u132->going); | |
2793 | return -ENODEV; | |
2794 | } else if (u132->going > 0) { | |
2795 | dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" | |
2796 | "ed\n", hcd); | |
2797 | dump_stack(); | |
2798 | return -ESHUTDOWN; | |
2799 | } else { | |
2800 | int i, changed = 0, length = 1; | |
2801 | if (u132->flags & OHCI_QUIRK_AMD756) { | |
2802 | if ((u132->hc_roothub_a & RH_A_NDP) > MAX_ROOT_PORTS) { | |
2803 | dev_err(&u132->platform_dev->dev, "bogus NDP, r" | |
2804 | "ereads as NDP=%d\n", | |
2805 | u132->hc_roothub_a & RH_A_NDP); | |
2806 | goto done; | |
2807 | } | |
2808 | } | |
2809 | if (u132->hc_roothub_status & (RH_HS_LPSC | RH_HS_OCIC)) { | |
2810 | buf[0] = changed = 1; | |
2811 | } else | |
2812 | buf[0] = 0; | |
2813 | if (u132->num_ports > 7) { | |
2814 | buf[1] = 0; | |
2815 | length++; | |
2816 | } | |
2817 | for (i = 0; i < u132->num_ports; i++) { | |
2818 | if (u132->hc_roothub_portstatus[i] & (RH_PS_CSC | | |
2819 | RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC | | |
2820 | RH_PS_PRSC)) { | |
2821 | changed = 1; | |
2822 | if (i < 7) { | |
2823 | buf[0] |= 1 << (i + 1); | |
2824 | } else | |
2825 | buf[1] |= 1 << (i - 7); | |
2826 | continue; | |
2827 | } | |
2828 | if (!(u132->hc_roothub_portstatus[i] & RH_PS_CCS)) { | |
2829 | continue; | |
2830 | } | |
2831 | if ((u132->hc_roothub_portstatus[i] & RH_PS_PSS)) { | |
2832 | continue; | |
2833 | } | |
2834 | } | |
2835 | done:return changed ? length : 0; | |
2836 | } | |
2837 | } | |
2838 | ||
2839 | static int u132_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, | |
2840 | u16 wIndex, char *buf, u16 wLength) | |
2841 | { | |
2842 | struct u132 *u132 = hcd_to_u132(hcd); | |
2843 | if (u132->going > 1) { | |
2844 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2845 | , u132->going); | |
2846 | return -ENODEV; | |
2847 | } else if (u132->going > 0) { | |
2848 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2849 | return -ESHUTDOWN; | |
2850 | } else { | |
2851 | int retval = 0; | |
2852 | down(&u132->sw_lock); | |
2853 | switch (typeReq) { | |
2854 | case ClearHubFeature: | |
2855 | switch (wValue) { | |
2856 | case C_HUB_OVER_CURRENT: | |
2857 | case C_HUB_LOCAL_POWER: | |
2858 | break; | |
2859 | default: | |
2860 | goto stall; | |
2861 | } | |
2862 | break; | |
2863 | case SetHubFeature: | |
2864 | switch (wValue) { | |
2865 | case C_HUB_OVER_CURRENT: | |
2866 | case C_HUB_LOCAL_POWER: | |
2867 | break; | |
2868 | default: | |
2869 | goto stall; | |
2870 | } | |
2871 | break; | |
2872 | case ClearPortFeature:{ | |
2873 | retval = u132_roothub_clearportfeature(u132, | |
2874 | wValue, wIndex); | |
2875 | if (retval) | |
2876 | goto error; | |
2877 | break; | |
2878 | } | |
2879 | case GetHubDescriptor:{ | |
2880 | retval = u132_roothub_descriptor(u132, | |
2881 | (struct usb_hub_descriptor *)buf); | |
2882 | if (retval) | |
2883 | goto error; | |
2884 | break; | |
2885 | } | |
2886 | case GetHubStatus:{ | |
2887 | retval = u132_roothub_status(u132, | |
2888 | (__le32 *) buf); | |
2889 | if (retval) | |
2890 | goto error; | |
2891 | break; | |
2892 | } | |
2893 | case GetPortStatus:{ | |
2894 | retval = u132_roothub_portstatus(u132, | |
2895 | (__le32 *) buf, wIndex); | |
2896 | if (retval) | |
2897 | goto error; | |
2898 | break; | |
2899 | } | |
2900 | case SetPortFeature:{ | |
2901 | retval = u132_roothub_setportfeature(u132, | |
2902 | wValue, wIndex); | |
2903 | if (retval) | |
2904 | goto error; | |
2905 | break; | |
2906 | } | |
2907 | default: | |
2908 | goto stall; | |
2909 | error:u132_disable(u132); | |
2910 | u132->going = 1; | |
2911 | break; | |
2912 | stall:retval = -EPIPE; | |
2913 | break; | |
2914 | } | |
2915 | up(&u132->sw_lock); | |
2916 | return retval; | |
2917 | } | |
2918 | } | |
2919 | ||
2920 | static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num) | |
2921 | { | |
2922 | struct u132 *u132 = hcd_to_u132(hcd); | |
2923 | if (u132->going > 1) { | |
2924 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2925 | , u132->going); | |
2926 | return -ENODEV; | |
2927 | } else if (u132->going > 0) { | |
2928 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2929 | return -ESHUTDOWN; | |
2930 | } else | |
2931 | return 0; | |
2932 | } | |
2933 | ||
2934 | static void u132_hub_irq_enable(struct usb_hcd *hcd) | |
2935 | { | |
2936 | struct u132 *u132 = hcd_to_u132(hcd); | |
2937 | if (u132->going > 1) { | |
2938 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2939 | , u132->going); | |
2940 | } else if (u132->going > 0) | |
2941 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2942 | } | |
2943 | ||
2944 | ||
2945 | #ifdef CONFIG_PM | |
2946 | static int u132_hcd_suspend(struct usb_hcd *hcd, pm_message_t message) | |
2947 | { | |
2948 | struct u132 *u132 = hcd_to_u132(hcd); | |
2949 | if (u132->going > 1) { | |
2950 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2951 | , u132->going); | |
2952 | return -ENODEV; | |
2953 | } else if (u132->going > 0) { | |
2954 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2955 | return -ESHUTDOWN; | |
2956 | } else | |
2957 | return 0; | |
2958 | } | |
2959 | ||
2960 | static int u132_hcd_resume(struct usb_hcd *hcd) | |
2961 | { | |
2962 | struct u132 *u132 = hcd_to_u132(hcd); | |
2963 | if (u132->going > 1) { | |
2964 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2965 | , u132->going); | |
2966 | return -ENODEV; | |
2967 | } else if (u132->going > 0) { | |
2968 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2969 | return -ESHUTDOWN; | |
2970 | } else | |
2971 | return 0; | |
2972 | } | |
2973 | ||
2974 | static int u132_bus_suspend(struct usb_hcd *hcd) | |
2975 | { | |
2976 | struct u132 *u132 = hcd_to_u132(hcd); | |
2977 | if (u132->going > 1) { | |
2978 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2979 | , u132->going); | |
2980 | return -ENODEV; | |
2981 | } else if (u132->going > 0) { | |
2982 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2983 | return -ESHUTDOWN; | |
2984 | } else | |
2985 | return 0; | |
2986 | } | |
2987 | ||
2988 | static int u132_bus_resume(struct usb_hcd *hcd) | |
2989 | { | |
2990 | struct u132 *u132 = hcd_to_u132(hcd); | |
2991 | if (u132->going > 1) { | |
2992 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2993 | , u132->going); | |
2994 | return -ENODEV; | |
2995 | } else if (u132->going > 0) { | |
2996 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2997 | return -ESHUTDOWN; | |
2998 | } else | |
2999 | return 0; | |
3000 | } | |
3001 | ||
3002 | #else | |
3003 | #define u132_hcd_suspend NULL | |
3004 | #define u132_hcd_resume NULL | |
3005 | #define u132_bus_suspend NULL | |
3006 | #define u132_bus_resume NULL | |
3007 | #endif | |
3008 | static struct hc_driver u132_hc_driver = { | |
3009 | .description = hcd_name, | |
3010 | .hcd_priv_size = sizeof(struct u132), | |
3011 | .irq = NULL, | |
3012 | .flags = HCD_USB11 | HCD_MEMORY, | |
3013 | .reset = u132_hcd_reset, | |
3014 | .start = u132_hcd_start, | |
3015 | .suspend = u132_hcd_suspend, | |
3016 | .resume = u132_hcd_resume, | |
3017 | .stop = u132_hcd_stop, | |
3018 | .urb_enqueue = u132_urb_enqueue, | |
3019 | .urb_dequeue = u132_urb_dequeue, | |
3020 | .endpoint_disable = u132_endpoint_disable, | |
3021 | .get_frame_number = u132_get_frame, | |
3022 | .hub_status_data = u132_hub_status_data, | |
3023 | .hub_control = u132_hub_control, | |
3024 | .bus_suspend = u132_bus_suspend, | |
3025 | .bus_resume = u132_bus_resume, | |
3026 | .start_port_reset = u132_start_port_reset, | |
3027 | .hub_irq_enable = u132_hub_irq_enable, | |
3028 | }; | |
3029 | ||
3030 | /* | |
3031 | * This function may be called by the USB core whilst the "usb_all_devices_rwsem" | |
3032 | * is held for writing, thus this module must not call usb_remove_hcd() | |
3033 | * synchronously - but instead should immediately stop activity to the | |
3034 | * device and ansynchronously call usb_remove_hcd() | |
3035 | */ | |
3036 | static int __devexit u132_remove(struct platform_device *pdev) | |
3037 | { | |
3038 | struct usb_hcd *hcd = platform_get_drvdata(pdev); | |
3039 | if (hcd) { | |
3040 | struct u132 *u132 = hcd_to_u132(hcd); | |
3041 | dump_stack(); | |
3042 | if (u132->going++ > 1) { | |
3043 | return -ENODEV; | |
3044 | } else { | |
3045 | int rings = MAX_U132_RINGS; | |
3046 | int endps = MAX_U132_ENDPS; | |
3047 | msleep(100); | |
3048 | down(&u132->sw_lock); | |
3049 | u132_monitor_cancel_work(u132); | |
3050 | while (rings-- > 0) { | |
3051 | struct u132_ring *ring = &u132->ring[rings]; | |
3052 | u132_ring_cancel_work(u132, ring); | |
3053 | } while (endps-- > 0) { | |
3054 | struct u132_endp *endp = u132->endp[endps]; | |
3055 | if (endp) | |
3056 | u132_endp_cancel_work(u132, endp); | |
3057 | } | |
3058 | u132->going += 1; | |
3059 | printk(KERN_INFO "removing device u132.%d\n", | |
3060 | u132->sequence_num); | |
3061 | up(&u132->sw_lock); | |
3062 | usb_remove_hcd(hcd); | |
3063 | u132_u132_put_kref(u132); | |
3064 | return 0; | |
3065 | } | |
3066 | } else | |
3067 | return 0; | |
3068 | } | |
3069 | ||
3070 | static void u132_initialise(struct u132 *u132, struct platform_device *pdev) | |
3071 | { | |
3072 | int rings = MAX_U132_RINGS; | |
3073 | int ports = MAX_U132_PORTS; | |
3074 | int addrs = MAX_U132_ADDRS; | |
3075 | int udevs = MAX_U132_UDEVS; | |
3076 | int endps = MAX_U132_ENDPS; | |
3077 | u132->board = pdev->dev.platform_data; | |
3078 | u132->platform_dev = pdev; | |
3079 | u132->power = 0; | |
3080 | u132->reset = 0; | |
3081 | init_MUTEX(&u132->sw_lock); | |
3082 | init_MUTEX(&u132->scheduler_lock); | |
3083 | while (rings-- > 0) { | |
3084 | struct u132_ring *ring = &u132->ring[rings]; | |
3085 | ring->u132 = u132; | |
3086 | ring->number = rings + 1; | |
3087 | ring->length = 0; | |
3088 | ring->curr_endp = NULL; | |
c4028958 DH |
3089 | INIT_DELAYED_WORK(&ring->scheduler, |
3090 | u132_hcd_ring_work_scheduler); | |
d774efea | 3091 | } down(&u132->sw_lock); |
c4028958 | 3092 | INIT_DELAYED_WORK(&u132->monitor, u132_hcd_monitor_work); |
d774efea TO |
3093 | while (ports-- > 0) { |
3094 | struct u132_port *port = &u132->port[ports]; | |
3095 | port->u132 = u132; | |
3096 | port->reset = 0; | |
3097 | port->enable = 0; | |
3098 | port->power = 0; | |
3099 | port->Status = 0; | |
3100 | } while (addrs-- > 0) { | |
3101 | struct u132_addr *addr = &u132->addr[addrs]; | |
3102 | addr->address = 0; | |
3103 | } while (udevs-- > 0) { | |
3104 | struct u132_udev *udev = &u132->udev[udevs]; | |
3105 | int i = ARRAY_SIZE(udev->endp_number_in); | |
3106 | int o = ARRAY_SIZE(udev->endp_number_out); | |
3107 | udev->usb_device = NULL; | |
3108 | udev->udev_number = 0; | |
3109 | udev->usb_addr = 0; | |
3110 | udev->portnumber = 0; | |
3111 | while (i-- > 0) { | |
3112 | udev->endp_number_in[i] = 0; | |
3113 | } | |
3114 | while (o-- > 0) { | |
3115 | udev->endp_number_out[o] = 0; | |
3116 | } | |
3117 | } | |
3118 | while (endps-- > 0) { | |
3119 | u132->endp[endps] = NULL; | |
3120 | } | |
3121 | up(&u132->sw_lock); | |
3122 | return; | |
3123 | } | |
3124 | ||
3125 | static int __devinit u132_probe(struct platform_device *pdev) | |
3126 | { | |
3127 | struct usb_hcd *hcd; | |
3128 | msleep(100); | |
3129 | if (u132_exiting > 0) { | |
3130 | return -ENODEV; | |
3131 | } /* refuse to confuse usbcore */ | |
3132 | if (pdev->dev.dma_mask) { | |
3133 | return -EINVAL; | |
3134 | } | |
3135 | hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, pdev->dev.bus_id); | |
3136 | if (!hcd) { | |
3137 | printk(KERN_ERR "failed to create the usb hcd struct for U132\n" | |
3138 | ); | |
3139 | ftdi_elan_gone_away(pdev); | |
3140 | return -ENOMEM; | |
3141 | } else { | |
3142 | int retval = 0; | |
3143 | struct u132 *u132 = hcd_to_u132(hcd); | |
3144 | hcd->rsrc_start = 0; | |
3145 | down(&u132_module_lock); | |
3146 | list_add_tail(&u132->u132_list, &u132_static_list); | |
3147 | u132->sequence_num = ++u132_instances; | |
3148 | up(&u132_module_lock); | |
3149 | u132_u132_init_kref(u132); | |
3150 | u132_initialise(u132, pdev); | |
3151 | hcd->product_desc = "ELAN U132 Host Controller"; | |
3152 | retval = usb_add_hcd(hcd, 0, 0); | |
3153 | if (retval != 0) { | |
3154 | dev_err(&u132->platform_dev->dev, "init error %d\n", | |
3155 | retval); | |
3156 | u132_u132_put_kref(u132); | |
3157 | return retval; | |
3158 | } else { | |
3159 | u132_monitor_queue_work(u132, 100); | |
3160 | return 0; | |
3161 | } | |
3162 | } | |
3163 | } | |
3164 | ||
3165 | ||
3166 | #ifdef CONFIG_PM | |
3167 | /* for this device there's no useful distinction between the controller | |
3168 | * and its root hub, except that the root hub only gets direct PM calls | |
3169 | * when CONFIG_USB_SUSPEND is enabled. | |
3170 | */ | |
3171 | static int u132_suspend(struct platform_device *pdev, pm_message_t state) | |
3172 | { | |
3173 | struct usb_hcd *hcd = platform_get_drvdata(pdev); | |
3174 | struct u132 *u132 = hcd_to_u132(hcd); | |
3175 | if (u132->going > 1) { | |
3176 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
3177 | , u132->going); | |
3178 | return -ENODEV; | |
3179 | } else if (u132->going > 0) { | |
3180 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
3181 | return -ESHUTDOWN; | |
3182 | } else { | |
3183 | int retval = 0; | |
3184 | if (state.event == PM_EVENT_FREEZE) { | |
3185 | retval = u132_bus_suspend(hcd); | |
3186 | } else if (state.event == PM_EVENT_SUSPEND) { | |
3187 | int ports = MAX_U132_PORTS; | |
3188 | while (ports-- > 0) { | |
3189 | port_power(u132, ports, 0); | |
3190 | } | |
3191 | } | |
3192 | if (retval == 0) | |
3193 | pdev->dev.power.power_state = state; | |
3194 | return retval; | |
3195 | } | |
3196 | } | |
3197 | ||
3198 | static int u132_resume(struct platform_device *pdev) | |
3199 | { | |
3200 | struct usb_hcd *hcd = platform_get_drvdata(pdev); | |
3201 | struct u132 *u132 = hcd_to_u132(hcd); | |
3202 | if (u132->going > 1) { | |
3203 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
3204 | , u132->going); | |
3205 | return -ENODEV; | |
3206 | } else if (u132->going > 0) { | |
3207 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
3208 | return -ESHUTDOWN; | |
3209 | } else { | |
3210 | int retval = 0; | |
3211 | if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) { | |
3212 | int ports = MAX_U132_PORTS; | |
3213 | while (ports-- > 0) { | |
3214 | port_power(u132, ports, 1); | |
3215 | } | |
3216 | retval = 0; | |
3217 | } else { | |
3218 | pdev->dev.power.power_state = PMSG_ON; | |
3219 | retval = u132_bus_resume(hcd); | |
3220 | } | |
3221 | return retval; | |
3222 | } | |
3223 | } | |
3224 | ||
3225 | #else | |
3226 | #define u132_suspend NULL | |
3227 | #define u132_resume NULL | |
3228 | #endif | |
3229 | /* | |
3230 | * this driver is loaded explicitely by ftdi_u132 | |
3231 | * | |
3232 | * the platform_driver struct is static because it is per type of module | |
3233 | */ | |
3234 | static struct platform_driver u132_platform_driver = { | |
3235 | .probe = u132_probe, | |
3236 | .remove = __devexit_p(u132_remove), | |
3237 | .suspend = u132_suspend, | |
3238 | .resume = u132_resume, | |
3239 | .driver = { | |
3240 | .name = (char *)hcd_name, | |
3241 | .owner = THIS_MODULE, | |
3242 | }, | |
3243 | }; | |
3244 | static int __init u132_hcd_init(void) | |
3245 | { | |
3246 | int retval; | |
3247 | INIT_LIST_HEAD(&u132_static_list); | |
3248 | u132_instances = 0; | |
3249 | u132_exiting = 0; | |
3250 | init_MUTEX(&u132_module_lock); | |
3251 | if (usb_disabled()) | |
3252 | return -ENODEV; | |
3253 | printk(KERN_INFO "driver %s built at %s on %s\n", hcd_name, __TIME__, | |
3254 | __DATE__); | |
3255 | workqueue = create_singlethread_workqueue("u132"); | |
3256 | retval = platform_driver_register(&u132_platform_driver); | |
3257 | return retval; | |
3258 | } | |
3259 | ||
3260 | ||
3261 | module_init(u132_hcd_init); | |
3262 | static void __exit u132_hcd_exit(void) | |
3263 | { | |
3264 | struct u132 *u132; | |
3265 | struct u132 *temp; | |
3266 | down(&u132_module_lock); | |
3267 | u132_exiting += 1; | |
3268 | up(&u132_module_lock); | |
3269 | list_for_each_entry_safe(u132, temp, &u132_static_list, u132_list) { | |
3270 | platform_device_unregister(u132->platform_dev); | |
3271 | } platform_driver_unregister(&u132_platform_driver); | |
3272 | printk(KERN_INFO "u132-hcd driver deregistered\n"); | |
3273 | wait_event(u132_hcd_wait, u132_instances == 0); | |
3274 | flush_workqueue(workqueue); | |
3275 | destroy_workqueue(workqueue); | |
3276 | } | |
3277 | ||
3278 | ||
3279 | module_exit(u132_hcd_exit); | |
3280 | MODULE_LICENSE("GPL"); |