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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> | |
4b87361d | 43 | #include <linux/pci_ids.h> |
d774efea TO |
44 | #include <linux/sched.h> |
45 | #include <linux/slab.h> | |
d774efea TO |
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> | |
d2066eb6 | 54 | #include <linux/mutex.h> |
d774efea TO |
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" | |
47f8468e DB |
60 | |
61 | /* FIXME ohci.h is ONLY for internal use by the OHCI driver. | |
62 | * If you're going to try stuff like this, you need to split | |
63 | * out shareable stuff (register declarations?) into its own | |
64 | * file, maybe name <linux/usb/ohci.h> | |
65 | */ | |
66 | ||
d774efea TO |
67 | #include "ohci.h" |
68 | #define OHCI_CONTROL_INIT OHCI_CTRL_CBSR | |
69 | #define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \ | |
b40f8d39 | 70 | OHCI_INTR_WDH) |
d774efea TO |
71 | MODULE_AUTHOR("Tony Olech - Elan Digital Systems Limited"); |
72 | MODULE_DESCRIPTION("U132 USB Host Controller Driver"); | |
73 | MODULE_LICENSE("GPL"); | |
74 | #define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444) | |
75 | INT_MODULE_PARM(testing, 0); | |
76 | /* Some boards misreport power switching/overcurrent*/ | |
77 | static int distrust_firmware = 1; | |
78 | module_param(distrust_firmware, bool, 0); | |
79 | MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren" | |
b40f8d39 | 80 | "t setup"); |
27a3de4c | 81 | static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait); |
d774efea TO |
82 | /* |
83 | * u132_module_lock exists to protect access to global variables | |
84 | * | |
85 | */ | |
d2066eb6 | 86 | static struct mutex u132_module_lock; |
b40f8d39 DW |
87 | static int u132_exiting; |
88 | static int u132_instances; | |
d774efea TO |
89 | static struct list_head u132_static_list; |
90 | /* | |
91 | * end of the global variables protected by u132_module_lock | |
92 | */ | |
93 | static struct workqueue_struct *workqueue; | |
94 | #define MAX_U132_PORTS 7 | |
95 | #define MAX_U132_ADDRS 128 | |
96 | #define MAX_U132_UDEVS 4 | |
97 | #define MAX_U132_ENDPS 100 | |
98 | #define MAX_U132_RINGS 4 | |
99 | static const char *cc_to_text[16] = { | |
b40f8d39 DW |
100 | "No Error ", |
101 | "CRC Error ", | |
102 | "Bit Stuff ", | |
103 | "Data Togg ", | |
104 | "Stall ", | |
105 | "DevNotResp ", | |
106 | "PIDCheck ", | |
107 | "UnExpPID ", | |
108 | "DataOver ", | |
109 | "DataUnder ", | |
110 | "(for hw) ", | |
111 | "(for hw) ", | |
112 | "BufferOver ", | |
113 | "BuffUnder ", | |
114 | "(for HCD) ", | |
115 | "(for HCD) " | |
d774efea TO |
116 | }; |
117 | struct u132_port { | |
b40f8d39 DW |
118 | struct u132 *u132; |
119 | int reset; | |
120 | int enable; | |
121 | int power; | |
122 | int Status; | |
d774efea TO |
123 | }; |
124 | struct u132_addr { | |
b40f8d39 | 125 | u8 address; |
d774efea TO |
126 | }; |
127 | struct u132_udev { | |
b40f8d39 DW |
128 | struct kref kref; |
129 | struct usb_device *usb_device; | |
130 | u8 enumeration; | |
131 | u8 udev_number; | |
132 | u8 usb_addr; | |
133 | u8 portnumber; | |
134 | u8 endp_number_in[16]; | |
135 | u8 endp_number_out[16]; | |
d774efea TO |
136 | }; |
137 | #define ENDP_QUEUE_SHIFT 3 | |
138 | #define ENDP_QUEUE_SIZE (1<<ENDP_QUEUE_SHIFT) | |
139 | #define ENDP_QUEUE_MASK (ENDP_QUEUE_SIZE-1) | |
140 | struct u132_urbq { | |
b40f8d39 DW |
141 | struct list_head urb_more; |
142 | struct urb *urb; | |
d774efea TO |
143 | }; |
144 | struct u132_spin { | |
b40f8d39 | 145 | spinlock_t slock; |
d774efea TO |
146 | }; |
147 | struct u132_endp { | |
b40f8d39 DW |
148 | struct kref kref; |
149 | u8 udev_number; | |
150 | u8 endp_number; | |
151 | u8 usb_addr; | |
152 | u8 usb_endp; | |
153 | struct u132 *u132; | |
154 | struct list_head endp_ring; | |
155 | struct u132_ring *ring; | |
156 | unsigned toggle_bits:2; | |
157 | unsigned active:1; | |
158 | unsigned delayed:1; | |
159 | unsigned input:1; | |
160 | unsigned output:1; | |
161 | unsigned pipetype:2; | |
162 | unsigned dequeueing:1; | |
163 | unsigned edset_flush:1; | |
164 | unsigned spare_bits:14; | |
165 | unsigned long jiffies; | |
166 | struct usb_host_endpoint *hep; | |
167 | struct u132_spin queue_lock; | |
168 | u16 queue_size; | |
169 | u16 queue_last; | |
170 | u16 queue_next; | |
171 | struct urb *urb_list[ENDP_QUEUE_SIZE]; | |
172 | struct list_head urb_more; | |
173 | struct delayed_work scheduler; | |
d774efea TO |
174 | }; |
175 | struct u132_ring { | |
b40f8d39 DW |
176 | unsigned in_use:1; |
177 | unsigned length:7; | |
178 | u8 number; | |
179 | struct u132 *u132; | |
180 | struct u132_endp *curr_endp; | |
181 | struct delayed_work scheduler; | |
d774efea | 182 | }; |
d774efea | 183 | struct u132 { |
b40f8d39 DW |
184 | struct kref kref; |
185 | struct list_head u132_list; | |
186 | struct mutex sw_lock; | |
50d8ca9b | 187 | struct mutex scheduler_lock; |
b40f8d39 DW |
188 | struct u132_platform_data *board; |
189 | struct platform_device *platform_dev; | |
190 | struct u132_ring ring[MAX_U132_RINGS]; | |
191 | int sequence_num; | |
192 | int going; | |
193 | int power; | |
194 | int reset; | |
195 | int num_ports; | |
196 | u32 hc_control; | |
197 | u32 hc_fminterval; | |
198 | u32 hc_roothub_status; | |
199 | u32 hc_roothub_a; | |
200 | u32 hc_roothub_portstatus[MAX_ROOT_PORTS]; | |
201 | int flags; | |
202 | unsigned long next_statechange; | |
203 | struct delayed_work monitor; | |
204 | int num_endpoints; | |
205 | struct u132_addr addr[MAX_U132_ADDRS]; | |
206 | struct u132_udev udev[MAX_U132_UDEVS]; | |
207 | struct u132_port port[MAX_U132_PORTS]; | |
208 | struct u132_endp *endp[MAX_U132_ENDPS]; | |
d774efea | 209 | }; |
9ce8540c | 210 | |
d774efea | 211 | /* |
0779bf2d | 212 | * these cannot be inlines because we need the structure offset!! |
d774efea TO |
213 | * Does anyone have a better way????? |
214 | */ | |
4b87361d | 215 | #define ftdi_read_pcimem(pdev, member, data) usb_ftdi_elan_read_pcimem(pdev, \ |
b40f8d39 | 216 | offsetof(struct ohci_regs, member), 0, data); |
4b87361d | 217 | #define ftdi_write_pcimem(pdev, member, data) usb_ftdi_elan_write_pcimem(pdev, \ |
b40f8d39 | 218 | offsetof(struct ohci_regs, member), 0, data); |
d774efea | 219 | #define u132_read_pcimem(u132, member, data) \ |
b40f8d39 DW |
220 | usb_ftdi_elan_read_pcimem(u132->platform_dev, offsetof(struct \ |
221 | ohci_regs, member), 0, data); | |
d774efea | 222 | #define u132_write_pcimem(u132, member, data) \ |
b40f8d39 DW |
223 | usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \ |
224 | ohci_regs, member), 0, data); | |
d774efea TO |
225 | static inline struct u132 *udev_to_u132(struct u132_udev *udev) |
226 | { | |
b40f8d39 DW |
227 | u8 udev_number = udev->udev_number; |
228 | return container_of(udev, struct u132, udev[udev_number]); | |
d774efea TO |
229 | } |
230 | ||
231 | static inline struct u132 *hcd_to_u132(struct usb_hcd *hcd) | |
232 | { | |
b40f8d39 | 233 | return (struct u132 *)(hcd->hcd_priv); |
d774efea TO |
234 | } |
235 | ||
236 | static inline struct usb_hcd *u132_to_hcd(struct u132 *u132) | |
237 | { | |
b40f8d39 | 238 | return container_of((void *)u132, struct usb_hcd, hcd_priv); |
d774efea TO |
239 | } |
240 | ||
241 | static inline void u132_disable(struct u132 *u132) | |
242 | { | |
b40f8d39 | 243 | u132_to_hcd(u132)->state = HC_STATE_HALT; |
d774efea TO |
244 | } |
245 | ||
246 | ||
247 | #define kref_to_u132(d) container_of(d, struct u132, kref) | |
248 | #define kref_to_u132_endp(d) container_of(d, struct u132_endp, kref) | |
249 | #define kref_to_u132_udev(d) container_of(d, struct u132_udev, kref) | |
250 | #include "../misc/usb_u132.h" | |
251 | static const char hcd_name[] = "u132_hcd"; | |
252 | #define PORT_C_MASK ((USB_PORT_STAT_C_CONNECTION | USB_PORT_STAT_C_ENABLE | \ | |
b40f8d39 DW |
253 | USB_PORT_STAT_C_SUSPEND | USB_PORT_STAT_C_OVERCURRENT | \ |
254 | USB_PORT_STAT_C_RESET) << 16) | |
d774efea TO |
255 | static void u132_hcd_delete(struct kref *kref) |
256 | { | |
b40f8d39 DW |
257 | struct u132 *u132 = kref_to_u132(kref); |
258 | struct platform_device *pdev = u132->platform_dev; | |
259 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
260 | u132->going += 1; | |
261 | mutex_lock(&u132_module_lock); | |
262 | list_del_init(&u132->u132_list); | |
263 | u132_instances -= 1; | |
264 | mutex_unlock(&u132_module_lock); | |
265 | dev_warn(&u132->platform_dev->dev, "FREEING the hcd=%p and thus the u13" | |
266 | "2=%p going=%d pdev=%p\n", hcd, u132, u132->going, pdev); | |
267 | usb_put_hcd(hcd); | |
d774efea TO |
268 | } |
269 | ||
270 | static inline void u132_u132_put_kref(struct u132 *u132) | |
271 | { | |
b40f8d39 | 272 | kref_put(&u132->kref, u132_hcd_delete); |
d774efea TO |
273 | } |
274 | ||
275 | static inline void u132_u132_init_kref(struct u132 *u132) | |
276 | { | |
b40f8d39 | 277 | kref_init(&u132->kref); |
d774efea TO |
278 | } |
279 | ||
280 | static void u132_udev_delete(struct kref *kref) | |
281 | { | |
b40f8d39 DW |
282 | struct u132_udev *udev = kref_to_u132_udev(kref); |
283 | udev->udev_number = 0; | |
284 | udev->usb_device = NULL; | |
285 | udev->usb_addr = 0; | |
286 | udev->enumeration = 0; | |
d774efea TO |
287 | } |
288 | ||
289 | static inline void u132_udev_put_kref(struct u132 *u132, struct u132_udev *udev) | |
290 | { | |
b40f8d39 | 291 | kref_put(&udev->kref, u132_udev_delete); |
d774efea TO |
292 | } |
293 | ||
294 | static inline void u132_udev_get_kref(struct u132 *u132, struct u132_udev *udev) | |
295 | { | |
b40f8d39 | 296 | kref_get(&udev->kref); |
d774efea TO |
297 | } |
298 | ||
299 | static inline void u132_udev_init_kref(struct u132 *u132, | |
b40f8d39 | 300 | struct u132_udev *udev) |
d774efea | 301 | { |
b40f8d39 | 302 | kref_init(&udev->kref); |
d774efea TO |
303 | } |
304 | ||
305 | static inline void u132_ring_put_kref(struct u132 *u132, struct u132_ring *ring) | |
306 | { | |
b40f8d39 | 307 | kref_put(&u132->kref, u132_hcd_delete); |
d774efea TO |
308 | } |
309 | ||
310 | static void u132_ring_requeue_work(struct u132 *u132, struct u132_ring *ring, | |
b40f8d39 | 311 | unsigned int delta) |
d774efea | 312 | { |
b40f8d39 DW |
313 | if (delta > 0) { |
314 | if (queue_delayed_work(workqueue, &ring->scheduler, delta)) | |
315 | return; | |
316 | } else if (queue_delayed_work(workqueue, &ring->scheduler, 0)) | |
317 | return; | |
318 | kref_put(&u132->kref, u132_hcd_delete); | |
319 | return; | |
d774efea TO |
320 | } |
321 | ||
322 | static void u132_ring_queue_work(struct u132 *u132, struct u132_ring *ring, | |
b40f8d39 | 323 | unsigned int delta) |
d774efea | 324 | { |
b40f8d39 DW |
325 | kref_get(&u132->kref); |
326 | u132_ring_requeue_work(u132, ring, delta); | |
327 | return; | |
d774efea TO |
328 | } |
329 | ||
330 | static void u132_ring_cancel_work(struct u132 *u132, struct u132_ring *ring) | |
331 | { | |
b40f8d39 DW |
332 | if (cancel_delayed_work(&ring->scheduler)) |
333 | kref_put(&u132->kref, u132_hcd_delete); | |
d774efea TO |
334 | } |
335 | ||
336 | static void u132_endp_delete(struct kref *kref) | |
337 | { | |
b40f8d39 DW |
338 | struct u132_endp *endp = kref_to_u132_endp(kref); |
339 | struct u132 *u132 = endp->u132; | |
340 | u8 usb_addr = endp->usb_addr; | |
341 | u8 usb_endp = endp->usb_endp; | |
342 | u8 address = u132->addr[usb_addr].address; | |
343 | struct u132_udev *udev = &u132->udev[address]; | |
344 | u8 endp_number = endp->endp_number; | |
345 | struct usb_host_endpoint *hep = endp->hep; | |
346 | struct u132_ring *ring = endp->ring; | |
347 | struct list_head *head = &endp->endp_ring; | |
348 | ring->length -= 1; | |
349 | if (endp == ring->curr_endp) { | |
350 | if (list_empty(head)) { | |
351 | ring->curr_endp = NULL; | |
352 | list_del(head); | |
353 | } else { | |
354 | struct u132_endp *next_endp = list_entry(head->next, | |
355 | struct u132_endp, endp_ring); | |
356 | ring->curr_endp = next_endp; | |
357 | list_del(head); | |
358 | } | |
359 | } else | |
360 | list_del(head); | |
361 | if (endp->input) { | |
362 | udev->endp_number_in[usb_endp] = 0; | |
363 | u132_udev_put_kref(u132, udev); | |
364 | } | |
365 | if (endp->output) { | |
366 | udev->endp_number_out[usb_endp] = 0; | |
367 | u132_udev_put_kref(u132, udev); | |
368 | } | |
369 | u132->endp[endp_number - 1] = NULL; | |
370 | hep->hcpriv = NULL; | |
371 | kfree(endp); | |
372 | u132_u132_put_kref(u132); | |
d774efea TO |
373 | } |
374 | ||
375 | static inline void u132_endp_put_kref(struct u132 *u132, struct u132_endp *endp) | |
376 | { | |
b40f8d39 | 377 | kref_put(&endp->kref, u132_endp_delete); |
d774efea TO |
378 | } |
379 | ||
380 | static inline void u132_endp_get_kref(struct u132 *u132, struct u132_endp *endp) | |
381 | { | |
b40f8d39 | 382 | kref_get(&endp->kref); |
d774efea TO |
383 | } |
384 | ||
385 | static inline void u132_endp_init_kref(struct u132 *u132, | |
b40f8d39 | 386 | struct u132_endp *endp) |
d774efea | 387 | { |
b40f8d39 DW |
388 | kref_init(&endp->kref); |
389 | kref_get(&u132->kref); | |
d774efea TO |
390 | } |
391 | ||
392 | static void u132_endp_queue_work(struct u132 *u132, struct u132_endp *endp, | |
b40f8d39 | 393 | unsigned int delta) |
d774efea | 394 | { |
c4028958 DH |
395 | if (queue_delayed_work(workqueue, &endp->scheduler, delta)) |
396 | kref_get(&endp->kref); | |
d774efea TO |
397 | } |
398 | ||
399 | static void u132_endp_cancel_work(struct u132 *u132, struct u132_endp *endp) | |
400 | { | |
b40f8d39 DW |
401 | if (cancel_delayed_work(&endp->scheduler)) |
402 | kref_put(&endp->kref, u132_endp_delete); | |
d774efea TO |
403 | } |
404 | ||
405 | static inline void u132_monitor_put_kref(struct u132 *u132) | |
406 | { | |
b40f8d39 | 407 | kref_put(&u132->kref, u132_hcd_delete); |
d774efea TO |
408 | } |
409 | ||
410 | static void u132_monitor_queue_work(struct u132 *u132, unsigned int delta) | |
411 | { | |
c4028958 DH |
412 | if (queue_delayed_work(workqueue, &u132->monitor, delta)) |
413 | kref_get(&u132->kref); | |
d774efea TO |
414 | } |
415 | ||
416 | static void u132_monitor_requeue_work(struct u132 *u132, unsigned int delta) | |
417 | { | |
c4028958 DH |
418 | if (!queue_delayed_work(workqueue, &u132->monitor, delta)) |
419 | kref_put(&u132->kref, u132_hcd_delete); | |
d774efea TO |
420 | } |
421 | ||
422 | static void u132_monitor_cancel_work(struct u132 *u132) | |
423 | { | |
b40f8d39 DW |
424 | if (cancel_delayed_work(&u132->monitor)) |
425 | kref_put(&u132->kref, u132_hcd_delete); | |
d774efea TO |
426 | } |
427 | ||
428 | static int read_roothub_info(struct u132 *u132) | |
429 | { | |
b40f8d39 DW |
430 | u32 revision; |
431 | int retval; | |
432 | retval = u132_read_pcimem(u132, revision, &revision); | |
433 | if (retval) { | |
434 | dev_err(&u132->platform_dev->dev, "error %d accessing device co" | |
435 | "ntrol\n", retval); | |
436 | return retval; | |
437 | } else if ((revision & 0xFF) == 0x10) { | |
438 | } else if ((revision & 0xFF) == 0x11) { | |
439 | } else { | |
440 | dev_err(&u132->platform_dev->dev, "device revision is not valid" | |
441 | " %08X\n", revision); | |
442 | return -ENODEV; | |
443 | } | |
444 | retval = u132_read_pcimem(u132, control, &u132->hc_control); | |
445 | if (retval) { | |
446 | dev_err(&u132->platform_dev->dev, "error %d accessing device co" | |
447 | "ntrol\n", retval); | |
448 | return retval; | |
449 | } | |
450 | retval = u132_read_pcimem(u132, roothub.status, | |
451 | &u132->hc_roothub_status); | |
452 | if (retval) { | |
453 | dev_err(&u132->platform_dev->dev, "error %d accessing device re" | |
454 | "g roothub.status\n", retval); | |
455 | return retval; | |
456 | } | |
457 | retval = u132_read_pcimem(u132, roothub.a, &u132->hc_roothub_a); | |
458 | if (retval) { | |
459 | dev_err(&u132->platform_dev->dev, "error %d accessing device re" | |
460 | "g roothub.a\n", retval); | |
461 | return retval; | |
462 | } | |
463 | { | |
464 | int I = u132->num_ports; | |
465 | int i = 0; | |
466 | while (I-- > 0) { | |
467 | retval = u132_read_pcimem(u132, roothub.portstatus[i], | |
468 | &u132->hc_roothub_portstatus[i]); | |
469 | if (retval) { | |
470 | dev_err(&u132->platform_dev->dev, "error %d acc" | |
471 | "essing device roothub.portstatus[%d]\n" | |
472 | , retval, i); | |
473 | return retval; | |
474 | } else | |
475 | i += 1; | |
476 | } | |
477 | } | |
478 | return 0; | |
d774efea TO |
479 | } |
480 | ||
c4028958 | 481 | static void u132_hcd_monitor_work(struct work_struct *work) |
d774efea | 482 | { |
b40f8d39 DW |
483 | struct u132 *u132 = container_of(work, struct u132, monitor.work); |
484 | if (u132->going > 1) { | |
485 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
486 | , u132->going); | |
487 | u132_monitor_put_kref(u132); | |
488 | return; | |
489 | } else if (u132->going > 0) { | |
490 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
491 | u132_monitor_put_kref(u132); | |
492 | return; | |
493 | } else { | |
494 | int retval; | |
495 | mutex_lock(&u132->sw_lock); | |
496 | retval = read_roothub_info(u132); | |
497 | if (retval) { | |
498 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
499 | u132_disable(u132); | |
500 | u132->going = 1; | |
501 | mutex_unlock(&u132->sw_lock); | |
502 | usb_hc_died(hcd); | |
503 | ftdi_elan_gone_away(u132->platform_dev); | |
504 | u132_monitor_put_kref(u132); | |
505 | return; | |
506 | } else { | |
507 | u132_monitor_requeue_work(u132, 500); | |
508 | mutex_unlock(&u132->sw_lock); | |
509 | return; | |
510 | } | |
511 | } | |
d774efea TO |
512 | } |
513 | ||
514 | static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp, | |
b40f8d39 | 515 | struct urb *urb, int status) |
d774efea | 516 | { |
b40f8d39 DW |
517 | struct u132_ring *ring; |
518 | unsigned long irqs; | |
519 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
520 | urb->error_count = 0; | |
521 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
e9df41c5 | 522 | usb_hcd_unlink_urb_from_ep(hcd, urb); |
b40f8d39 DW |
523 | endp->queue_next += 1; |
524 | if (ENDP_QUEUE_SIZE > --endp->queue_size) { | |
525 | endp->active = 0; | |
526 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
527 | } else { | |
528 | struct list_head *next = endp->urb_more.next; | |
529 | struct u132_urbq *urbq = list_entry(next, struct u132_urbq, | |
530 | urb_more); | |
531 | list_del(next); | |
532 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = | |
533 | urbq->urb; | |
534 | endp->active = 0; | |
535 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
536 | kfree(urbq); | |
537 | } | |
50d8ca9b | 538 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
539 | ring = endp->ring; |
540 | ring->in_use = 0; | |
541 | u132_ring_cancel_work(u132, ring); | |
542 | u132_ring_queue_work(u132, ring, 0); | |
50d8ca9b | 543 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 | 544 | u132_endp_put_kref(u132, endp); |
4a00027d | 545 | usb_hcd_giveback_urb(hcd, urb, status); |
b40f8d39 | 546 | return; |
d774efea TO |
547 | } |
548 | ||
549 | static void u132_hcd_forget_urb(struct u132 *u132, struct u132_endp *endp, | |
b40f8d39 | 550 | struct urb *urb, int status) |
d774efea | 551 | { |
b40f8d39 | 552 | u132_endp_put_kref(u132, endp); |
d774efea TO |
553 | } |
554 | ||
555 | static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp, | |
b40f8d39 | 556 | struct urb *urb, int status) |
d774efea | 557 | { |
b40f8d39 DW |
558 | unsigned long irqs; |
559 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
560 | urb->error_count = 0; | |
561 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
e9df41c5 | 562 | usb_hcd_unlink_urb_from_ep(hcd, urb); |
b40f8d39 DW |
563 | endp->queue_next += 1; |
564 | if (ENDP_QUEUE_SIZE > --endp->queue_size) { | |
565 | endp->active = 0; | |
566 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
567 | } else { | |
568 | struct list_head *next = endp->urb_more.next; | |
569 | struct u132_urbq *urbq = list_entry(next, struct u132_urbq, | |
570 | urb_more); | |
571 | list_del(next); | |
572 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = | |
573 | urbq->urb; | |
574 | endp->active = 0; | |
575 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
576 | kfree(urbq); | |
4a00027d | 577 | } usb_hcd_giveback_urb(hcd, urb, status); |
b40f8d39 | 578 | return; |
d774efea TO |
579 | } |
580 | ||
581 | static inline int edset_input(struct u132 *u132, struct u132_ring *ring, | |
b40f8d39 DW |
582 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
583 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, | |
584 | int toggle_bits, int error_count, int condition_code, int repeat_number, | |
585 | int halted, int skipped, int actual, int non_null)) | |
d774efea | 586 | { |
b40f8d39 DW |
587 | return usb_ftdi_elan_edset_input(u132->platform_dev, ring->number, endp, |
588 | urb, address, endp->usb_endp, toggle_bits, callback); | |
d774efea TO |
589 | } |
590 | ||
591 | static inline int edset_setup(struct u132 *u132, struct u132_ring *ring, | |
b40f8d39 DW |
592 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
593 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, | |
594 | int toggle_bits, int error_count, int condition_code, int repeat_number, | |
595 | int halted, int skipped, int actual, int non_null)) | |
d774efea | 596 | { |
b40f8d39 DW |
597 | return usb_ftdi_elan_edset_setup(u132->platform_dev, ring->number, endp, |
598 | urb, address, endp->usb_endp, toggle_bits, callback); | |
d774efea TO |
599 | } |
600 | ||
601 | static inline int edset_single(struct u132 *u132, struct u132_ring *ring, | |
b40f8d39 DW |
602 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
603 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, | |
604 | int toggle_bits, int error_count, int condition_code, int repeat_number, | |
605 | int halted, int skipped, int actual, int non_null)) | |
d774efea | 606 | { |
b40f8d39 DW |
607 | return usb_ftdi_elan_edset_single(u132->platform_dev, ring->number, |
608 | endp, urb, address, endp->usb_endp, toggle_bits, callback); | |
d774efea TO |
609 | } |
610 | ||
611 | static inline int edset_output(struct u132 *u132, struct u132_ring *ring, | |
b40f8d39 DW |
612 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
613 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, | |
614 | int toggle_bits, int error_count, int condition_code, int repeat_number, | |
615 | int halted, int skipped, int actual, int non_null)) | |
d774efea | 616 | { |
b40f8d39 DW |
617 | return usb_ftdi_elan_edset_output(u132->platform_dev, ring->number, |
618 | endp, urb, address, endp->usb_endp, toggle_bits, callback); | |
d774efea TO |
619 | } |
620 | ||
621 | ||
622 | /* | |
623 | * must not LOCK sw_lock | |
624 | * | |
625 | */ | |
626 | static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
627 | int len, int toggle_bits, int error_count, int condition_code, |
628 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
629 | { | |
630 | struct u132_endp *endp = data; | |
631 | struct u132 *u132 = endp->u132; | |
632 | u8 address = u132->addr[endp->usb_addr].address; | |
633 | struct u132_udev *udev = &u132->udev[address]; | |
50d8ca9b | 634 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
635 | if (u132->going > 1) { |
636 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
637 | , u132->going); | |
50d8ca9b | 638 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
639 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
640 | return; | |
641 | } else if (endp->dequeueing) { | |
642 | endp->dequeueing = 0; | |
50d8ca9b | 643 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
644 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
645 | return; | |
646 | } else if (u132->going > 0) { | |
eb231054 AS |
647 | dev_err(&u132->platform_dev->dev, "device is being removed " |
648 | "urb=%p\n", urb); | |
50d8ca9b | 649 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
650 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
651 | return; | |
eb231054 | 652 | } else if (!urb->unlinked) { |
b40f8d39 DW |
653 | struct u132_ring *ring = endp->ring; |
654 | u8 *u = urb->transfer_buffer + urb->actual_length; | |
655 | u8 *b = buf; | |
656 | int L = len; | |
657 | ||
658 | while (L-- > 0) | |
659 | *u++ = *b++; | |
660 | ||
661 | urb->actual_length += len; | |
662 | if ((condition_code == TD_CC_NOERROR) && | |
663 | (urb->transfer_buffer_length > urb->actual_length)) { | |
664 | endp->toggle_bits = toggle_bits; | |
665 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
666 | 1 & toggle_bits); | |
667 | if (urb->actual_length > 0) { | |
668 | int retval; | |
50d8ca9b | 669 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
670 | retval = edset_single(u132, ring, endp, urb, |
671 | address, endp->toggle_bits, | |
672 | u132_hcd_interrupt_recv); | |
673 | if (retval != 0) | |
674 | u132_hcd_giveback_urb(u132, endp, urb, | |
675 | retval); | |
676 | } else { | |
677 | ring->in_use = 0; | |
678 | endp->active = 0; | |
679 | endp->jiffies = jiffies + | |
680 | msecs_to_jiffies(urb->interval); | |
681 | u132_ring_cancel_work(u132, ring); | |
682 | u132_ring_queue_work(u132, ring, 0); | |
50d8ca9b | 683 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
684 | u132_endp_put_kref(u132, endp); |
685 | } | |
686 | return; | |
687 | } else if ((condition_code == TD_DATAUNDERRUN) && | |
688 | ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) { | |
689 | endp->toggle_bits = toggle_bits; | |
690 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
691 | 1 & toggle_bits); | |
50d8ca9b | 692 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
693 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
694 | return; | |
695 | } else { | |
696 | if (condition_code == TD_CC_NOERROR) { | |
697 | endp->toggle_bits = toggle_bits; | |
698 | usb_settoggle(udev->usb_device, endp->usb_endp, | |
699 | 0, 1 & toggle_bits); | |
700 | } else if (condition_code == TD_CC_STALL) { | |
701 | endp->toggle_bits = 0x2; | |
702 | usb_settoggle(udev->usb_device, endp->usb_endp, | |
703 | 0, 0); | |
704 | } else { | |
705 | endp->toggle_bits = 0x2; | |
706 | usb_settoggle(udev->usb_device, endp->usb_endp, | |
707 | 0, 0); | |
708 | dev_err(&u132->platform_dev->dev, "urb=%p givin" | |
709 | "g back INTERRUPT %s\n", urb, | |
710 | cc_to_text[condition_code]); | |
711 | } | |
50d8ca9b | 712 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
713 | u132_hcd_giveback_urb(u132, endp, urb, |
714 | cc_to_error[condition_code]); | |
715 | return; | |
716 | } | |
717 | } else { | |
eb231054 AS |
718 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
719 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 720 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 721 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
722 | return; |
723 | } | |
d774efea TO |
724 | } |
725 | ||
726 | static void u132_hcd_bulk_output_sent(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
727 | int len, int toggle_bits, int error_count, int condition_code, |
728 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
729 | { | |
730 | struct u132_endp *endp = data; | |
731 | struct u132 *u132 = endp->u132; | |
732 | u8 address = u132->addr[endp->usb_addr].address; | |
50d8ca9b | 733 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
734 | if (u132->going > 1) { |
735 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
736 | , u132->going); | |
50d8ca9b | 737 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
738 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
739 | return; | |
740 | } else if (endp->dequeueing) { | |
741 | endp->dequeueing = 0; | |
50d8ca9b | 742 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
743 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
744 | return; | |
745 | } else if (u132->going > 0) { | |
eb231054 AS |
746 | dev_err(&u132->platform_dev->dev, "device is being removed " |
747 | "urb=%p\n", urb); | |
50d8ca9b | 748 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
749 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
750 | return; | |
eb231054 | 751 | } else if (!urb->unlinked) { |
b40f8d39 DW |
752 | struct u132_ring *ring = endp->ring; |
753 | urb->actual_length += len; | |
754 | endp->toggle_bits = toggle_bits; | |
755 | if (urb->transfer_buffer_length > urb->actual_length) { | |
756 | int retval; | |
50d8ca9b | 757 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
758 | retval = edset_output(u132, ring, endp, urb, address, |
759 | endp->toggle_bits, u132_hcd_bulk_output_sent); | |
760 | if (retval != 0) | |
761 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
762 | return; | |
763 | } else { | |
50d8ca9b | 764 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
765 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
766 | return; | |
767 | } | |
768 | } else { | |
eb231054 AS |
769 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
770 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 771 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 772 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
773 | return; |
774 | } | |
d774efea TO |
775 | } |
776 | ||
777 | static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
778 | int len, int toggle_bits, int error_count, int condition_code, |
779 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
780 | { | |
781 | struct u132_endp *endp = data; | |
782 | struct u132 *u132 = endp->u132; | |
783 | u8 address = u132->addr[endp->usb_addr].address; | |
784 | struct u132_udev *udev = &u132->udev[address]; | |
50d8ca9b | 785 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
786 | if (u132->going > 1) { |
787 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
788 | , u132->going); | |
50d8ca9b | 789 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
790 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
791 | return; | |
792 | } else if (endp->dequeueing) { | |
793 | endp->dequeueing = 0; | |
50d8ca9b | 794 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
795 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
796 | return; | |
797 | } else if (u132->going > 0) { | |
eb231054 AS |
798 | dev_err(&u132->platform_dev->dev, "device is being removed " |
799 | "urb=%p\n", urb); | |
50d8ca9b | 800 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
801 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
802 | return; | |
eb231054 | 803 | } else if (!urb->unlinked) { |
b40f8d39 DW |
804 | struct u132_ring *ring = endp->ring; |
805 | u8 *u = urb->transfer_buffer + urb->actual_length; | |
806 | u8 *b = buf; | |
807 | int L = len; | |
808 | ||
809 | while (L-- > 0) | |
810 | *u++ = *b++; | |
811 | ||
812 | urb->actual_length += len; | |
813 | if ((condition_code == TD_CC_NOERROR) && | |
814 | (urb->transfer_buffer_length > urb->actual_length)) { | |
815 | int retval; | |
816 | endp->toggle_bits = toggle_bits; | |
817 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
818 | 1 & toggle_bits); | |
50d8ca9b | 819 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
820 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
821 | ring->number, endp, urb, address, | |
822 | endp->usb_endp, endp->toggle_bits, | |
823 | u132_hcd_bulk_input_recv); | |
824 | if (retval != 0) | |
825 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
826 | return; | |
827 | } else if (condition_code == TD_CC_NOERROR) { | |
828 | endp->toggle_bits = toggle_bits; | |
829 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
830 | 1 & toggle_bits); | |
50d8ca9b | 831 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
832 | u132_hcd_giveback_urb(u132, endp, urb, |
833 | cc_to_error[condition_code]); | |
834 | return; | |
835 | } else if ((condition_code == TD_DATAUNDERRUN) && | |
836 | ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) { | |
837 | endp->toggle_bits = toggle_bits; | |
838 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
839 | 1 & toggle_bits); | |
50d8ca9b | 840 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
841 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
842 | return; | |
843 | } else if (condition_code == TD_DATAUNDERRUN) { | |
844 | endp->toggle_bits = toggle_bits; | |
845 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
846 | 1 & toggle_bits); | |
847 | dev_warn(&u132->platform_dev->dev, "urb=%p(SHORT NOT OK" | |
848 | ") giving back BULK IN %s\n", urb, | |
849 | cc_to_text[condition_code]); | |
50d8ca9b | 850 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
851 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
852 | return; | |
853 | } else if (condition_code == TD_CC_STALL) { | |
854 | endp->toggle_bits = 0x2; | |
855 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0); | |
50d8ca9b | 856 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
857 | u132_hcd_giveback_urb(u132, endp, urb, |
858 | cc_to_error[condition_code]); | |
859 | return; | |
860 | } else { | |
861 | endp->toggle_bits = 0x2; | |
862 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0); | |
863 | dev_err(&u132->platform_dev->dev, "urb=%p giving back B" | |
864 | "ULK IN code=%d %s\n", urb, condition_code, | |
865 | cc_to_text[condition_code]); | |
50d8ca9b | 866 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
867 | u132_hcd_giveback_urb(u132, endp, urb, |
868 | cc_to_error[condition_code]); | |
869 | return; | |
870 | } | |
871 | } else { | |
eb231054 AS |
872 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
873 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 874 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 875 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
876 | return; |
877 | } | |
d774efea TO |
878 | } |
879 | ||
880 | static void u132_hcd_configure_empty_sent(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
881 | int len, int toggle_bits, int error_count, int condition_code, |
882 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
883 | { | |
884 | struct u132_endp *endp = data; | |
885 | struct u132 *u132 = endp->u132; | |
50d8ca9b | 886 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
887 | if (u132->going > 1) { |
888 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
889 | , u132->going); | |
50d8ca9b | 890 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
891 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
892 | return; | |
893 | } else if (endp->dequeueing) { | |
894 | endp->dequeueing = 0; | |
50d8ca9b | 895 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
896 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
897 | return; | |
898 | } else if (u132->going > 0) { | |
eb231054 AS |
899 | dev_err(&u132->platform_dev->dev, "device is being removed " |
900 | "urb=%p\n", urb); | |
50d8ca9b | 901 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
902 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
903 | return; | |
eb231054 | 904 | } else if (!urb->unlinked) { |
50d8ca9b | 905 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
906 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
907 | return; | |
908 | } else { | |
eb231054 AS |
909 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
910 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 911 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 912 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
913 | return; |
914 | } | |
d774efea TO |
915 | } |
916 | ||
917 | static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
918 | int len, int toggle_bits, int error_count, int condition_code, |
919 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
920 | { | |
921 | struct u132_endp *endp = data; | |
922 | struct u132 *u132 = endp->u132; | |
923 | u8 address = u132->addr[endp->usb_addr].address; | |
50d8ca9b | 924 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
925 | if (u132->going > 1) { |
926 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
927 | , u132->going); | |
50d8ca9b | 928 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
929 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
930 | return; | |
931 | } else if (endp->dequeueing) { | |
932 | endp->dequeueing = 0; | |
50d8ca9b | 933 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
934 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
935 | return; | |
936 | } else if (u132->going > 0) { | |
eb231054 AS |
937 | dev_err(&u132->platform_dev->dev, "device is being removed " |
938 | "urb=%p\n", urb); | |
50d8ca9b | 939 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
940 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
941 | return; | |
eb231054 | 942 | } else if (!urb->unlinked) { |
b40f8d39 DW |
943 | struct u132_ring *ring = endp->ring; |
944 | u8 *u = urb->transfer_buffer; | |
945 | u8 *b = buf; | |
946 | int L = len; | |
947 | ||
948 | while (L-- > 0) | |
949 | *u++ = *b++; | |
950 | ||
951 | urb->actual_length = len; | |
952 | if ((condition_code == TD_CC_NOERROR) || ((condition_code == | |
953 | TD_DATAUNDERRUN) && ((urb->transfer_flags & | |
954 | URB_SHORT_NOT_OK) == 0))) { | |
955 | int retval; | |
50d8ca9b | 956 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
957 | retval = usb_ftdi_elan_edset_empty(u132->platform_dev, |
958 | ring->number, endp, urb, address, | |
959 | endp->usb_endp, 0x3, | |
960 | u132_hcd_configure_empty_sent); | |
961 | if (retval != 0) | |
962 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
963 | return; | |
964 | } else if (condition_code == TD_CC_STALL) { | |
50d8ca9b | 965 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
966 | dev_warn(&u132->platform_dev->dev, "giving back SETUP I" |
967 | "NPUT STALL urb %p\n", urb); | |
968 | u132_hcd_giveback_urb(u132, endp, urb, | |
969 | cc_to_error[condition_code]); | |
970 | return; | |
971 | } else { | |
50d8ca9b | 972 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
973 | dev_err(&u132->platform_dev->dev, "giving back SETUP IN" |
974 | "PUT %s urb %p\n", cc_to_text[condition_code], | |
975 | urb); | |
976 | u132_hcd_giveback_urb(u132, endp, urb, | |
977 | cc_to_error[condition_code]); | |
978 | return; | |
979 | } | |
980 | } else { | |
eb231054 AS |
981 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
982 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 983 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 984 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
985 | return; |
986 | } | |
d774efea TO |
987 | } |
988 | ||
989 | static void u132_hcd_configure_empty_recv(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
990 | int len, int toggle_bits, int error_count, int condition_code, |
991 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
992 | { | |
993 | struct u132_endp *endp = data; | |
994 | struct u132 *u132 = endp->u132; | |
50d8ca9b | 995 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
996 | if (u132->going > 1) { |
997 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
998 | , u132->going); | |
50d8ca9b | 999 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1000 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1001 | return; | |
1002 | } else if (endp->dequeueing) { | |
1003 | endp->dequeueing = 0; | |
50d8ca9b | 1004 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1005 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1006 | return; | |
1007 | } else if (u132->going > 0) { | |
eb231054 AS |
1008 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1009 | "urb=%p\n", urb); | |
50d8ca9b | 1010 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1011 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1012 | return; | |
eb231054 | 1013 | } else if (!urb->unlinked) { |
50d8ca9b | 1014 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1015 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
1016 | return; | |
1017 | } else { | |
eb231054 AS |
1018 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1019 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1020 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1021 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1022 | return; |
1023 | } | |
d774efea TO |
1024 | } |
1025 | ||
1026 | static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
1027 | int len, int toggle_bits, int error_count, int condition_code, |
1028 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1029 | { | |
1030 | struct u132_endp *endp = data; | |
1031 | struct u132 *u132 = endp->u132; | |
1032 | u8 address = u132->addr[endp->usb_addr].address; | |
50d8ca9b | 1033 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1034 | if (u132->going > 1) { |
1035 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1036 | , u132->going); | |
50d8ca9b | 1037 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1038 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1039 | return; | |
1040 | } else if (endp->dequeueing) { | |
1041 | endp->dequeueing = 0; | |
50d8ca9b | 1042 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1043 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1044 | return; | |
1045 | } else if (u132->going > 0) { | |
eb231054 AS |
1046 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1047 | "urb=%p\n", urb); | |
50d8ca9b | 1048 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1049 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1050 | return; | |
eb231054 | 1051 | } else if (!urb->unlinked) { |
b40f8d39 DW |
1052 | if (usb_pipein(urb->pipe)) { |
1053 | int retval; | |
1054 | struct u132_ring *ring = endp->ring; | |
50d8ca9b | 1055 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1056 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
1057 | ring->number, endp, urb, address, | |
1058 | endp->usb_endp, 0, | |
1059 | u132_hcd_configure_input_recv); | |
1060 | if (retval != 0) | |
1061 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1062 | return; | |
1063 | } else { | |
1064 | int retval; | |
1065 | struct u132_ring *ring = endp->ring; | |
50d8ca9b | 1066 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1067 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
1068 | ring->number, endp, urb, address, | |
1069 | endp->usb_endp, 0, | |
1070 | u132_hcd_configure_empty_recv); | |
1071 | if (retval != 0) | |
1072 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1073 | return; | |
1074 | } | |
1075 | } else { | |
eb231054 AS |
1076 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1077 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1078 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1079 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1080 | return; |
1081 | } | |
d774efea TO |
1082 | } |
1083 | ||
1084 | static void u132_hcd_enumeration_empty_recv(void *data, struct urb *urb, | |
b40f8d39 DW |
1085 | u8 *buf, int len, int toggle_bits, int error_count, int condition_code, |
1086 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1087 | { | |
1088 | struct u132_endp *endp = data; | |
1089 | struct u132 *u132 = endp->u132; | |
1090 | u8 address = u132->addr[endp->usb_addr].address; | |
1091 | struct u132_udev *udev = &u132->udev[address]; | |
50d8ca9b | 1092 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1093 | if (u132->going > 1) { |
1094 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1095 | , u132->going); | |
50d8ca9b | 1096 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1097 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1098 | return; | |
1099 | } else if (endp->dequeueing) { | |
1100 | endp->dequeueing = 0; | |
50d8ca9b | 1101 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1102 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1103 | return; | |
1104 | } else if (u132->going > 0) { | |
eb231054 AS |
1105 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1106 | "urb=%p\n", urb); | |
50d8ca9b | 1107 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1108 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1109 | return; | |
eb231054 | 1110 | } else if (!urb->unlinked) { |
b40f8d39 DW |
1111 | u132->addr[0].address = 0; |
1112 | endp->usb_addr = udev->usb_addr; | |
50d8ca9b | 1113 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1114 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
1115 | return; | |
1116 | } else { | |
eb231054 AS |
1117 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1118 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1119 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1120 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1121 | return; |
1122 | } | |
d774efea TO |
1123 | } |
1124 | ||
1125 | static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb, | |
b40f8d39 DW |
1126 | u8 *buf, int len, int toggle_bits, int error_count, int condition_code, |
1127 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1128 | { | |
1129 | struct u132_endp *endp = data; | |
1130 | struct u132 *u132 = endp->u132; | |
50d8ca9b | 1131 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1132 | if (u132->going > 1) { |
1133 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1134 | , u132->going); | |
50d8ca9b | 1135 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1136 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1137 | return; | |
1138 | } else if (endp->dequeueing) { | |
1139 | endp->dequeueing = 0; | |
50d8ca9b | 1140 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1141 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1142 | return; | |
1143 | } else if (u132->going > 0) { | |
eb231054 AS |
1144 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1145 | "urb=%p\n", urb); | |
50d8ca9b | 1146 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1147 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1148 | return; | |
eb231054 | 1149 | } else if (!urb->unlinked) { |
b40f8d39 DW |
1150 | int retval; |
1151 | struct u132_ring *ring = endp->ring; | |
50d8ca9b | 1152 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1153 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
1154 | ring->number, endp, urb, 0, endp->usb_endp, 0, | |
1155 | u132_hcd_enumeration_empty_recv); | |
1156 | if (retval != 0) | |
1157 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1158 | return; | |
1159 | } else { | |
eb231054 AS |
1160 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1161 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1162 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1163 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1164 | return; |
1165 | } | |
d774efea TO |
1166 | } |
1167 | ||
1168 | static void u132_hcd_initial_empty_sent(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
1169 | int len, int toggle_bits, int error_count, int condition_code, |
1170 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1171 | { | |
1172 | struct u132_endp *endp = data; | |
1173 | struct u132 *u132 = endp->u132; | |
50d8ca9b | 1174 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1175 | if (u132->going > 1) { |
1176 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1177 | , u132->going); | |
50d8ca9b | 1178 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1179 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1180 | return; | |
1181 | } else if (endp->dequeueing) { | |
1182 | endp->dequeueing = 0; | |
50d8ca9b | 1183 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1184 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1185 | return; | |
1186 | } else if (u132->going > 0) { | |
eb231054 AS |
1187 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1188 | "urb=%p\n", urb); | |
50d8ca9b | 1189 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1190 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1191 | return; | |
eb231054 | 1192 | } else if (!urb->unlinked) { |
50d8ca9b | 1193 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1194 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
1195 | return; | |
1196 | } else { | |
eb231054 AS |
1197 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1198 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1199 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1200 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1201 | return; |
1202 | } | |
d774efea TO |
1203 | } |
1204 | ||
1205 | static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
1206 | int len, int toggle_bits, int error_count, int condition_code, |
1207 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1208 | { | |
1209 | struct u132_endp *endp = data; | |
1210 | struct u132 *u132 = endp->u132; | |
1211 | u8 address = u132->addr[endp->usb_addr].address; | |
50d8ca9b | 1212 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1213 | if (u132->going > 1) { |
1214 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1215 | , u132->going); | |
50d8ca9b | 1216 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1217 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1218 | return; | |
1219 | } else if (endp->dequeueing) { | |
1220 | endp->dequeueing = 0; | |
50d8ca9b | 1221 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1222 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1223 | return; | |
1224 | } else if (u132->going > 0) { | |
eb231054 AS |
1225 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1226 | "urb=%p\n", urb); | |
50d8ca9b | 1227 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1228 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1229 | return; | |
eb231054 | 1230 | } else if (!urb->unlinked) { |
b40f8d39 DW |
1231 | int retval; |
1232 | struct u132_ring *ring = endp->ring; | |
1233 | u8 *u = urb->transfer_buffer; | |
1234 | u8 *b = buf; | |
1235 | int L = len; | |
1236 | ||
1237 | while (L-- > 0) | |
1238 | *u++ = *b++; | |
1239 | ||
1240 | urb->actual_length = len; | |
50d8ca9b | 1241 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1242 | retval = usb_ftdi_elan_edset_empty(u132->platform_dev, |
1243 | ring->number, endp, urb, address, endp->usb_endp, 0x3, | |
1244 | u132_hcd_initial_empty_sent); | |
1245 | if (retval != 0) | |
1246 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1247 | return; | |
1248 | } else { | |
eb231054 AS |
1249 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1250 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1251 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1252 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1253 | return; |
1254 | } | |
d774efea TO |
1255 | } |
1256 | ||
1257 | static void u132_hcd_initial_setup_sent(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
1258 | int len, int toggle_bits, int error_count, int condition_code, |
1259 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1260 | { | |
1261 | struct u132_endp *endp = data; | |
1262 | struct u132 *u132 = endp->u132; | |
1263 | u8 address = u132->addr[endp->usb_addr].address; | |
50d8ca9b | 1264 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1265 | if (u132->going > 1) { |
1266 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1267 | , u132->going); | |
50d8ca9b | 1268 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1269 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1270 | return; | |
1271 | } else if (endp->dequeueing) { | |
1272 | endp->dequeueing = 0; | |
50d8ca9b | 1273 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1274 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1275 | return; | |
1276 | } else if (u132->going > 0) { | |
eb231054 AS |
1277 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1278 | "urb=%p\n", urb); | |
50d8ca9b | 1279 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1280 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1281 | return; | |
eb231054 | 1282 | } else if (!urb->unlinked) { |
b40f8d39 DW |
1283 | int retval; |
1284 | struct u132_ring *ring = endp->ring; | |
50d8ca9b | 1285 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1286 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
1287 | ring->number, endp, urb, address, endp->usb_endp, 0, | |
1288 | u132_hcd_initial_input_recv); | |
1289 | if (retval != 0) | |
1290 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1291 | return; | |
1292 | } else { | |
eb231054 AS |
1293 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1294 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1295 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1296 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1297 | return; |
1298 | } | |
d774efea TO |
1299 | } |
1300 | ||
d774efea TO |
1301 | /* |
1302 | * this work function is only executed from the work queue | |
1303 | * | |
1304 | */ | |
c4028958 | 1305 | static void u132_hcd_ring_work_scheduler(struct work_struct *work) |
d774efea | 1306 | { |
b40f8d39 | 1307 | struct u132_ring *ring = |
c4028958 | 1308 | container_of(work, struct u132_ring, scheduler.work); |
b40f8d39 | 1309 | struct u132 *u132 = ring->u132; |
50d8ca9b | 1310 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 | 1311 | if (ring->in_use) { |
50d8ca9b | 1312 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1313 | u132_ring_put_kref(u132, ring); |
1314 | return; | |
1315 | } else if (ring->curr_endp) { | |
1316 | struct u132_endp *last_endp = ring->curr_endp; | |
1317 | struct list_head *scan; | |
1318 | struct list_head *head = &last_endp->endp_ring; | |
1319 | unsigned long wakeup = 0; | |
1320 | list_for_each(scan, head) { | |
1321 | struct u132_endp *endp = list_entry(scan, | |
1322 | struct u132_endp, endp_ring); | |
1323 | if (endp->queue_next == endp->queue_last) { | |
1324 | } else if ((endp->delayed == 0) | |
1325 | || time_after_eq(jiffies, endp->jiffies)) { | |
1326 | ring->curr_endp = endp; | |
1327 | u132_endp_cancel_work(u132, last_endp); | |
1328 | u132_endp_queue_work(u132, last_endp, 0); | |
50d8ca9b | 1329 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1330 | u132_ring_put_kref(u132, ring); |
1331 | return; | |
1332 | } else { | |
1333 | unsigned long delta = endp->jiffies - jiffies; | |
1334 | if (delta > wakeup) | |
1335 | wakeup = delta; | |
1336 | } | |
1337 | } | |
1338 | if (last_endp->queue_next == last_endp->queue_last) { | |
1339 | } else if ((last_endp->delayed == 0) || time_after_eq(jiffies, | |
1340 | last_endp->jiffies)) { | |
1341 | u132_endp_cancel_work(u132, last_endp); | |
1342 | u132_endp_queue_work(u132, last_endp, 0); | |
50d8ca9b | 1343 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1344 | u132_ring_put_kref(u132, ring); |
1345 | return; | |
1346 | } else { | |
1347 | unsigned long delta = last_endp->jiffies - jiffies; | |
1348 | if (delta > wakeup) | |
1349 | wakeup = delta; | |
1350 | } | |
1351 | if (wakeup > 0) { | |
1352 | u132_ring_requeue_work(u132, ring, wakeup); | |
50d8ca9b | 1353 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1354 | return; |
1355 | } else { | |
50d8ca9b | 1356 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1357 | u132_ring_put_kref(u132, ring); |
1358 | return; | |
1359 | } | |
1360 | } else { | |
50d8ca9b | 1361 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1362 | u132_ring_put_kref(u132, ring); |
1363 | return; | |
1364 | } | |
d774efea TO |
1365 | } |
1366 | ||
c4028958 | 1367 | static void u132_hcd_endp_work_scheduler(struct work_struct *work) |
d774efea | 1368 | { |
b40f8d39 DW |
1369 | struct u132_ring *ring; |
1370 | struct u132_endp *endp = | |
c4028958 | 1371 | container_of(work, struct u132_endp, scheduler.work); |
b40f8d39 | 1372 | struct u132 *u132 = endp->u132; |
50d8ca9b | 1373 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1374 | ring = endp->ring; |
1375 | if (endp->edset_flush) { | |
1376 | endp->edset_flush = 0; | |
1377 | if (endp->dequeueing) | |
1378 | usb_ftdi_elan_edset_flush(u132->platform_dev, | |
1379 | ring->number, endp); | |
50d8ca9b | 1380 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1381 | u132_endp_put_kref(u132, endp); |
1382 | return; | |
1383 | } else if (endp->active) { | |
50d8ca9b | 1384 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1385 | u132_endp_put_kref(u132, endp); |
1386 | return; | |
1387 | } else if (ring->in_use) { | |
50d8ca9b | 1388 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1389 | u132_endp_put_kref(u132, endp); |
1390 | return; | |
1391 | } else if (endp->queue_next == endp->queue_last) { | |
50d8ca9b | 1392 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1393 | u132_endp_put_kref(u132, endp); |
1394 | return; | |
1395 | } else if (endp->pipetype == PIPE_INTERRUPT) { | |
1396 | u8 address = u132->addr[endp->usb_addr].address; | |
1397 | if (ring->in_use) { | |
50d8ca9b | 1398 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1399 | u132_endp_put_kref(u132, endp); |
1400 | return; | |
1401 | } else { | |
1402 | int retval; | |
1403 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & | |
1404 | endp->queue_next]; | |
1405 | endp->active = 1; | |
1406 | ring->curr_endp = endp; | |
1407 | ring->in_use = 1; | |
50d8ca9b | 1408 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1409 | retval = edset_single(u132, ring, endp, urb, address, |
1410 | endp->toggle_bits, u132_hcd_interrupt_recv); | |
1411 | if (retval != 0) | |
1412 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1413 | return; | |
1414 | } | |
1415 | } else if (endp->pipetype == PIPE_CONTROL) { | |
1416 | u8 address = u132->addr[endp->usb_addr].address; | |
1417 | if (ring->in_use) { | |
50d8ca9b | 1418 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1419 | u132_endp_put_kref(u132, endp); |
1420 | return; | |
1421 | } else if (address == 0) { | |
1422 | int retval; | |
1423 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & | |
1424 | endp->queue_next]; | |
1425 | endp->active = 1; | |
1426 | ring->curr_endp = endp; | |
1427 | ring->in_use = 1; | |
50d8ca9b | 1428 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1429 | retval = edset_setup(u132, ring, endp, urb, address, |
1430 | 0x2, u132_hcd_initial_setup_sent); | |
1431 | if (retval != 0) | |
1432 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1433 | return; | |
1434 | } else if (endp->usb_addr == 0) { | |
1435 | int retval; | |
1436 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & | |
1437 | endp->queue_next]; | |
1438 | endp->active = 1; | |
1439 | ring->curr_endp = endp; | |
1440 | ring->in_use = 1; | |
50d8ca9b | 1441 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1442 | retval = edset_setup(u132, ring, endp, urb, 0, 0x2, |
1443 | u132_hcd_enumeration_address_sent); | |
1444 | if (retval != 0) | |
1445 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1446 | return; | |
1447 | } else { | |
1448 | int retval; | |
1449 | u8 address = u132->addr[endp->usb_addr].address; | |
1450 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & | |
1451 | endp->queue_next]; | |
1452 | endp->active = 1; | |
1453 | ring->curr_endp = endp; | |
1454 | ring->in_use = 1; | |
50d8ca9b | 1455 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1456 | retval = edset_setup(u132, ring, endp, urb, address, |
1457 | 0x2, u132_hcd_configure_setup_sent); | |
1458 | if (retval != 0) | |
1459 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1460 | return; | |
1461 | } | |
1462 | } else { | |
1463 | if (endp->input) { | |
1464 | u8 address = u132->addr[endp->usb_addr].address; | |
1465 | if (ring->in_use) { | |
50d8ca9b | 1466 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1467 | u132_endp_put_kref(u132, endp); |
1468 | return; | |
1469 | } else { | |
1470 | int retval; | |
1471 | struct urb *urb = endp->urb_list[ | |
1472 | ENDP_QUEUE_MASK & endp->queue_next]; | |
1473 | endp->active = 1; | |
1474 | ring->curr_endp = endp; | |
1475 | ring->in_use = 1; | |
50d8ca9b | 1476 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1477 | retval = edset_input(u132, ring, endp, urb, |
1478 | address, endp->toggle_bits, | |
1479 | u132_hcd_bulk_input_recv); | |
1480 | if (retval == 0) { | |
1481 | } else | |
1482 | u132_hcd_giveback_urb(u132, endp, urb, | |
1483 | retval); | |
1484 | return; | |
1485 | } | |
1486 | } else { /* output pipe */ | |
1487 | u8 address = u132->addr[endp->usb_addr].address; | |
1488 | if (ring->in_use) { | |
50d8ca9b | 1489 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1490 | u132_endp_put_kref(u132, endp); |
1491 | return; | |
1492 | } else { | |
1493 | int retval; | |
1494 | struct urb *urb = endp->urb_list[ | |
1495 | ENDP_QUEUE_MASK & endp->queue_next]; | |
1496 | endp->active = 1; | |
1497 | ring->curr_endp = endp; | |
1498 | ring->in_use = 1; | |
50d8ca9b | 1499 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1500 | retval = edset_output(u132, ring, endp, urb, |
1501 | address, endp->toggle_bits, | |
1502 | u132_hcd_bulk_output_sent); | |
1503 | if (retval == 0) { | |
1504 | } else | |
1505 | u132_hcd_giveback_urb(u132, endp, urb, | |
1506 | retval); | |
1507 | return; | |
1508 | } | |
1509 | } | |
1510 | } | |
d774efea | 1511 | } |
5b570d43 | 1512 | #ifdef CONFIG_PM |
d774efea TO |
1513 | |
1514 | static void port_power(struct u132 *u132, int pn, int is_on) | |
1515 | { | |
b40f8d39 | 1516 | u132->port[pn].power = is_on; |
d774efea TO |
1517 | } |
1518 | ||
5b570d43 G |
1519 | #endif |
1520 | ||
d774efea TO |
1521 | static void u132_power(struct u132 *u132, int is_on) |
1522 | { | |
b40f8d39 DW |
1523 | struct usb_hcd *hcd = u132_to_hcd(u132) |
1524 | ; /* hub is inactive unless the port is powered */ | |
1525 | if (is_on) { | |
1526 | if (u132->power) | |
1527 | return; | |
1528 | u132->power = 1; | |
1529 | } else { | |
1530 | u132->power = 0; | |
1531 | hcd->state = HC_STATE_HALT; | |
1532 | } | |
d774efea TO |
1533 | } |
1534 | ||
1535 | static int u132_periodic_reinit(struct u132 *u132) | |
1536 | { | |
b40f8d39 DW |
1537 | int retval; |
1538 | u32 fi = u132->hc_fminterval & 0x03fff; | |
1539 | u32 fit; | |
1540 | u32 fminterval; | |
1541 | retval = u132_read_pcimem(u132, fminterval, &fminterval); | |
1542 | if (retval) | |
1543 | return retval; | |
1544 | fit = fminterval & FIT; | |
1545 | retval = u132_write_pcimem(u132, fminterval, | |
1546 | (fit ^ FIT) | u132->hc_fminterval); | |
1547 | if (retval) | |
1548 | return retval; | |
1549 | retval = u132_write_pcimem(u132, periodicstart, | |
1550 | ((9 * fi) / 10) & 0x3fff); | |
1551 | if (retval) | |
1552 | return retval; | |
1553 | return 0; | |
d774efea TO |
1554 | } |
1555 | ||
1556 | static char *hcfs2string(int state) | |
1557 | { | |
b40f8d39 DW |
1558 | switch (state) { |
1559 | case OHCI_USB_RESET: | |
1560 | return "reset"; | |
1561 | case OHCI_USB_RESUME: | |
1562 | return "resume"; | |
1563 | case OHCI_USB_OPER: | |
1564 | return "operational"; | |
1565 | case OHCI_USB_SUSPEND: | |
1566 | return "suspend"; | |
1567 | } | |
1568 | return "?"; | |
d774efea TO |
1569 | } |
1570 | ||
d774efea TO |
1571 | static int u132_init(struct u132 *u132) |
1572 | { | |
b40f8d39 DW |
1573 | int retval; |
1574 | u32 control; | |
1575 | u132_disable(u132); | |
1576 | u132->next_statechange = jiffies; | |
1577 | retval = u132_write_pcimem(u132, intrdisable, OHCI_INTR_MIE); | |
1578 | if (retval) | |
1579 | return retval; | |
1580 | retval = u132_read_pcimem(u132, control, &control); | |
1581 | if (retval) | |
1582 | return retval; | |
1583 | if (u132->num_ports == 0) { | |
1584 | u32 rh_a = -1; | |
1585 | retval = u132_read_pcimem(u132, roothub.a, &rh_a); | |
1586 | if (retval) | |
1587 | return retval; | |
1588 | u132->num_ports = rh_a & RH_A_NDP; | |
1589 | retval = read_roothub_info(u132); | |
1590 | if (retval) | |
1591 | return retval; | |
1592 | } | |
1593 | if (u132->num_ports > MAX_U132_PORTS) | |
1594 | return -EINVAL; | |
1595 | ||
1596 | return 0; | |
d774efea TO |
1597 | } |
1598 | ||
1599 | ||
1600 | /* Start an OHCI controller, set the BUS operational | |
1601 | * resets USB and controller | |
1602 | * enable interrupts | |
1603 | */ | |
1604 | static int u132_run(struct u132 *u132) | |
1605 | { | |
b40f8d39 DW |
1606 | int retval; |
1607 | u32 control; | |
1608 | u32 status; | |
1609 | u32 fminterval; | |
1610 | u32 periodicstart; | |
1611 | u32 cmdstatus; | |
1612 | u32 roothub_a; | |
1613 | int mask = OHCI_INTR_INIT; | |
1614 | int first = u132->hc_fminterval == 0; | |
1615 | int sleep_time = 0; | |
1616 | int reset_timeout = 30; /* ... allow extra time */ | |
1617 | u132_disable(u132); | |
1618 | if (first) { | |
1619 | u32 temp; | |
1620 | retval = u132_read_pcimem(u132, fminterval, &temp); | |
1621 | if (retval) | |
1622 | return retval; | |
1623 | u132->hc_fminterval = temp & 0x3fff; | |
1624 | u132->hc_fminterval |= FSMP(u132->hc_fminterval) << 16; | |
1625 | } | |
1626 | retval = u132_read_pcimem(u132, control, &u132->hc_control); | |
1627 | if (retval) | |
1628 | return retval; | |
1629 | dev_info(&u132->platform_dev->dev, "resetting from state '%s', control " | |
1630 | "= %08X\n", hcfs2string(u132->hc_control & OHCI_CTRL_HCFS), | |
1631 | u132->hc_control); | |
1632 | switch (u132->hc_control & OHCI_CTRL_HCFS) { | |
1633 | case OHCI_USB_OPER: | |
1634 | sleep_time = 0; | |
1635 | break; | |
1636 | case OHCI_USB_SUSPEND: | |
1637 | case OHCI_USB_RESUME: | |
1638 | u132->hc_control &= OHCI_CTRL_RWC; | |
1639 | u132->hc_control |= OHCI_USB_RESUME; | |
1640 | sleep_time = 10; | |
1641 | break; | |
1642 | default: | |
1643 | u132->hc_control &= OHCI_CTRL_RWC; | |
1644 | u132->hc_control |= OHCI_USB_RESET; | |
1645 | sleep_time = 50; | |
1646 | break; | |
1647 | } | |
1648 | retval = u132_write_pcimem(u132, control, u132->hc_control); | |
1649 | if (retval) | |
1650 | return retval; | |
1651 | retval = u132_read_pcimem(u132, control, &control); | |
1652 | if (retval) | |
1653 | return retval; | |
1654 | msleep(sleep_time); | |
1655 | retval = u132_read_pcimem(u132, roothub.a, &roothub_a); | |
1656 | if (retval) | |
1657 | return retval; | |
1658 | if (!(roothub_a & RH_A_NPS)) { | |
1659 | int temp; /* power down each port */ | |
1660 | for (temp = 0; temp < u132->num_ports; temp++) { | |
1661 | retval = u132_write_pcimem(u132, | |
1662 | roothub.portstatus[temp], RH_PS_LSDA); | |
1663 | if (retval) | |
1664 | return retval; | |
1665 | } | |
1666 | } | |
1667 | retval = u132_read_pcimem(u132, control, &control); | |
1668 | if (retval) | |
1669 | return retval; | |
1670 | retry: | |
1671 | retval = u132_read_pcimem(u132, cmdstatus, &status); | |
1672 | if (retval) | |
1673 | return retval; | |
1674 | retval = u132_write_pcimem(u132, cmdstatus, OHCI_HCR); | |
1675 | if (retval) | |
1676 | return retval; | |
1677 | extra: { | |
1678 | retval = u132_read_pcimem(u132, cmdstatus, &status); | |
1679 | if (retval) | |
1680 | return retval; | |
1681 | if (0 != (status & OHCI_HCR)) { | |
1682 | if (--reset_timeout == 0) { | |
1683 | dev_err(&u132->platform_dev->dev, "USB HC reset" | |
1684 | " timed out!\n"); | |
1685 | return -ENODEV; | |
1686 | } else { | |
1687 | msleep(5); | |
1688 | goto extra; | |
1689 | } | |
1690 | } | |
1691 | } | |
1692 | if (u132->flags & OHCI_QUIRK_INITRESET) { | |
1693 | retval = u132_write_pcimem(u132, control, u132->hc_control); | |
1694 | if (retval) | |
1695 | return retval; | |
1696 | retval = u132_read_pcimem(u132, control, &control); | |
1697 | if (retval) | |
1698 | return retval; | |
1699 | } | |
1700 | retval = u132_write_pcimem(u132, ed_controlhead, 0x00000000); | |
1701 | if (retval) | |
1702 | return retval; | |
1703 | retval = u132_write_pcimem(u132, ed_bulkhead, 0x11000000); | |
1704 | if (retval) | |
1705 | return retval; | |
1706 | retval = u132_write_pcimem(u132, hcca, 0x00000000); | |
1707 | if (retval) | |
1708 | return retval; | |
1709 | retval = u132_periodic_reinit(u132); | |
1710 | if (retval) | |
1711 | return retval; | |
1712 | retval = u132_read_pcimem(u132, fminterval, &fminterval); | |
1713 | if (retval) | |
1714 | return retval; | |
1715 | retval = u132_read_pcimem(u132, periodicstart, &periodicstart); | |
1716 | if (retval) | |
1717 | return retval; | |
1718 | if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) { | |
1719 | if (!(u132->flags & OHCI_QUIRK_INITRESET)) { | |
1720 | u132->flags |= OHCI_QUIRK_INITRESET; | |
1721 | goto retry; | |
1722 | } else | |
1723 | dev_err(&u132->platform_dev->dev, "init err(%08x %04x)" | |
1724 | "\n", fminterval, periodicstart); | |
1725 | } /* start controller operations */ | |
1726 | u132->hc_control &= OHCI_CTRL_RWC; | |
1727 | u132->hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER; | |
1728 | retval = u132_write_pcimem(u132, control, u132->hc_control); | |
1729 | if (retval) | |
1730 | return retval; | |
1731 | retval = u132_write_pcimem(u132, cmdstatus, OHCI_BLF); | |
1732 | if (retval) | |
1733 | return retval; | |
1734 | retval = u132_read_pcimem(u132, cmdstatus, &cmdstatus); | |
1735 | if (retval) | |
1736 | return retval; | |
1737 | retval = u132_read_pcimem(u132, control, &control); | |
1738 | if (retval) | |
1739 | return retval; | |
1740 | u132_to_hcd(u132)->state = HC_STATE_RUNNING; | |
1741 | retval = u132_write_pcimem(u132, roothub.status, RH_HS_DRWE); | |
1742 | if (retval) | |
1743 | return retval; | |
1744 | retval = u132_write_pcimem(u132, intrstatus, mask); | |
1745 | if (retval) | |
1746 | return retval; | |
1747 | retval = u132_write_pcimem(u132, intrdisable, | |
1748 | OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO | | |
1749 | OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH | | |
1750 | OHCI_INTR_SO); | |
1751 | if (retval) | |
1752 | return retval; /* handle root hub init quirks ... */ | |
1753 | retval = u132_read_pcimem(u132, roothub.a, &roothub_a); | |
1754 | if (retval) | |
1755 | return retval; | |
1756 | roothub_a &= ~(RH_A_PSM | RH_A_OCPM); | |
1757 | if (u132->flags & OHCI_QUIRK_SUPERIO) { | |
1758 | roothub_a |= RH_A_NOCP; | |
1759 | roothub_a &= ~(RH_A_POTPGT | RH_A_NPS); | |
1760 | retval = u132_write_pcimem(u132, roothub.a, roothub_a); | |
1761 | if (retval) | |
1762 | return retval; | |
1763 | } else if ((u132->flags & OHCI_QUIRK_AMD756) || distrust_firmware) { | |
1764 | roothub_a |= RH_A_NPS; | |
1765 | retval = u132_write_pcimem(u132, roothub.a, roothub_a); | |
1766 | if (retval) | |
1767 | return retval; | |
1768 | } | |
1769 | retval = u132_write_pcimem(u132, roothub.status, RH_HS_LPSC); | |
1770 | if (retval) | |
1771 | return retval; | |
1772 | retval = u132_write_pcimem(u132, roothub.b, | |
1773 | (roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM); | |
1774 | if (retval) | |
1775 | return retval; | |
1776 | retval = u132_read_pcimem(u132, control, &control); | |
1777 | if (retval) | |
1778 | return retval; | |
1779 | mdelay((roothub_a >> 23) & 0x1fe); | |
1780 | u132_to_hcd(u132)->state = HC_STATE_RUNNING; | |
1781 | return 0; | |
d774efea TO |
1782 | } |
1783 | ||
1784 | static void u132_hcd_stop(struct usb_hcd *hcd) | |
1785 | { | |
b40f8d39 DW |
1786 | struct u132 *u132 = hcd_to_u132(hcd); |
1787 | if (u132->going > 1) { | |
1788 | dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p) has b" | |
1789 | "een removed %d\n", u132, hcd, u132->going); | |
1790 | } else if (u132->going > 0) { | |
1791 | dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" | |
1792 | "ed\n", hcd); | |
1793 | } else { | |
1794 | mutex_lock(&u132->sw_lock); | |
1795 | msleep(100); | |
1796 | u132_power(u132, 0); | |
1797 | mutex_unlock(&u132->sw_lock); | |
1798 | } | |
d774efea TO |
1799 | } |
1800 | ||
1801 | static int u132_hcd_start(struct usb_hcd *hcd) | |
1802 | { | |
b40f8d39 DW |
1803 | struct u132 *u132 = hcd_to_u132(hcd); |
1804 | if (u132->going > 1) { | |
1805 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1806 | , u132->going); | |
1807 | return -ENODEV; | |
1808 | } else if (u132->going > 0) { | |
1809 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
1810 | return -ESHUTDOWN; | |
1811 | } else if (hcd->self.controller) { | |
1812 | int retval; | |
1813 | struct platform_device *pdev = | |
1814 | to_platform_device(hcd->self.controller); | |
1815 | u16 vendor = ((struct u132_platform_data *) | |
1816 | (pdev->dev.platform_data))->vendor; | |
1817 | u16 device = ((struct u132_platform_data *) | |
1818 | (pdev->dev.platform_data))->device; | |
1819 | mutex_lock(&u132->sw_lock); | |
1820 | msleep(10); | |
1821 | if (vendor == PCI_VENDOR_ID_AMD && device == 0x740c) { | |
1822 | u132->flags = OHCI_QUIRK_AMD756; | |
1823 | } else if (vendor == PCI_VENDOR_ID_OPTI && device == 0xc861) { | |
1824 | dev_err(&u132->platform_dev->dev, "WARNING: OPTi workar" | |
1825 | "ounds unavailable\n"); | |
1826 | } else if (vendor == PCI_VENDOR_ID_COMPAQ && device == 0xa0f8) | |
1827 | u132->flags |= OHCI_QUIRK_ZFMICRO; | |
1828 | retval = u132_run(u132); | |
1829 | if (retval) { | |
1830 | u132_disable(u132); | |
1831 | u132->going = 1; | |
1832 | } | |
1833 | msleep(100); | |
1834 | mutex_unlock(&u132->sw_lock); | |
1835 | return retval; | |
1836 | } else { | |
1837 | dev_err(&u132->platform_dev->dev, "platform_device missing\n"); | |
1838 | return -ENODEV; | |
1839 | } | |
d774efea TO |
1840 | } |
1841 | ||
1842 | static int u132_hcd_reset(struct usb_hcd *hcd) | |
1843 | { | |
b40f8d39 DW |
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 | return -ENODEV; | |
1849 | } else if (u132->going > 0) { | |
1850 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
1851 | return -ESHUTDOWN; | |
1852 | } else { | |
1853 | int retval; | |
1854 | mutex_lock(&u132->sw_lock); | |
1855 | retval = u132_init(u132); | |
1856 | if (retval) { | |
1857 | u132_disable(u132); | |
1858 | u132->going = 1; | |
1859 | } | |
1860 | mutex_unlock(&u132->sw_lock); | |
1861 | return retval; | |
1862 | } | |
d774efea TO |
1863 | } |
1864 | ||
1865 | static int create_endpoint_and_queue_int(struct u132 *u132, | |
e9df41c5 | 1866 | struct u132_udev *udev, struct urb *urb, |
b40f8d39 DW |
1867 | struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address, |
1868 | gfp_t mem_flags) | |
d774efea | 1869 | { |
b40f8d39 DW |
1870 | struct u132_ring *ring; |
1871 | unsigned long irqs; | |
e9df41c5 AS |
1872 | int rc; |
1873 | u8 endp_number; | |
1874 | struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); | |
1875 | ||
b40f8d39 DW |
1876 | if (!endp) |
1877 | return -ENOMEM; | |
e9df41c5 AS |
1878 | |
1879 | spin_lock_init(&endp->queue_lock.slock); | |
1880 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
1881 | rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); | |
1882 | if (rc) { | |
1883 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
1884 | kfree(endp); | |
1885 | return rc; | |
1886 | } | |
1887 | ||
1888 | endp_number = ++u132->num_endpoints; | |
1889 | urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; | |
b40f8d39 DW |
1890 | INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
1891 | INIT_LIST_HEAD(&endp->urb_more); | |
1892 | ring = endp->ring = &u132->ring[0]; | |
1893 | if (ring->curr_endp) { | |
1894 | list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); | |
1895 | } else { | |
1896 | INIT_LIST_HEAD(&endp->endp_ring); | |
1897 | ring->curr_endp = endp; | |
1898 | } | |
1899 | ring->length += 1; | |
1900 | endp->dequeueing = 0; | |
1901 | endp->edset_flush = 0; | |
1902 | endp->active = 0; | |
1903 | endp->delayed = 0; | |
1904 | endp->endp_number = endp_number; | |
1905 | endp->u132 = u132; | |
e9df41c5 | 1906 | endp->hep = urb->ep; |
b40f8d39 DW |
1907 | endp->pipetype = usb_pipetype(urb->pipe); |
1908 | u132_endp_init_kref(u132, endp); | |
1909 | if (usb_pipein(urb->pipe)) { | |
1910 | endp->toggle_bits = 0x2; | |
1911 | usb_settoggle(udev->usb_device, usb_endp, 0, 0); | |
1912 | endp->input = 1; | |
1913 | endp->output = 0; | |
1914 | udev->endp_number_in[usb_endp] = endp_number; | |
1915 | u132_udev_get_kref(u132, udev); | |
1916 | } else { | |
1917 | endp->toggle_bits = 0x2; | |
1918 | usb_settoggle(udev->usb_device, usb_endp, 1, 0); | |
1919 | endp->input = 0; | |
1920 | endp->output = 1; | |
1921 | udev->endp_number_out[usb_endp] = endp_number; | |
1922 | u132_udev_get_kref(u132, udev); | |
1923 | } | |
1924 | urb->hcpriv = u132; | |
1925 | endp->delayed = 1; | |
1926 | endp->jiffies = jiffies + msecs_to_jiffies(urb->interval); | |
1927 | endp->udev_number = address; | |
1928 | endp->usb_addr = usb_addr; | |
1929 | endp->usb_endp = usb_endp; | |
1930 | endp->queue_size = 1; | |
1931 | endp->queue_last = 0; | |
1932 | endp->queue_next = 0; | |
1933 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
1934 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
1935 | u132_endp_queue_work(u132, endp, msecs_to_jiffies(urb->interval)); | |
1936 | return 0; | |
d774efea TO |
1937 | } |
1938 | ||
e9df41c5 AS |
1939 | static int queue_int_on_old_endpoint(struct u132 *u132, |
1940 | struct u132_udev *udev, struct urb *urb, | |
b40f8d39 DW |
1941 | struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
1942 | u8 usb_endp, u8 address) | |
1943 | { | |
1944 | urb->hcpriv = u132; | |
1945 | endp->delayed = 1; | |
1946 | endp->jiffies = jiffies + msecs_to_jiffies(urb->interval); | |
1947 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
1948 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
1949 | } else { | |
1950 | struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq), | |
1951 | GFP_ATOMIC); | |
1952 | if (urbq == NULL) { | |
1953 | endp->queue_size -= 1; | |
1954 | return -ENOMEM; | |
1955 | } else { | |
1956 | list_add_tail(&urbq->urb_more, &endp->urb_more); | |
1957 | urbq->urb = urb; | |
1958 | } | |
1959 | } | |
1960 | return 0; | |
d774efea TO |
1961 | } |
1962 | ||
1963 | static int create_endpoint_and_queue_bulk(struct u132 *u132, | |
e9df41c5 | 1964 | struct u132_udev *udev, struct urb *urb, |
b40f8d39 DW |
1965 | struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address, |
1966 | gfp_t mem_flags) | |
d774efea | 1967 | { |
b40f8d39 DW |
1968 | int ring_number; |
1969 | struct u132_ring *ring; | |
1970 | unsigned long irqs; | |
e9df41c5 AS |
1971 | int rc; |
1972 | u8 endp_number; | |
1973 | struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); | |
1974 | ||
b40f8d39 DW |
1975 | if (!endp) |
1976 | return -ENOMEM; | |
e9df41c5 AS |
1977 | |
1978 | spin_lock_init(&endp->queue_lock.slock); | |
1979 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
1980 | rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); | |
1981 | if (rc) { | |
1982 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
1983 | kfree(endp); | |
1984 | return rc; | |
1985 | } | |
1986 | ||
1987 | endp_number = ++u132->num_endpoints; | |
1988 | urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; | |
b40f8d39 DW |
1989 | INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
1990 | INIT_LIST_HEAD(&endp->urb_more); | |
1991 | endp->dequeueing = 0; | |
1992 | endp->edset_flush = 0; | |
1993 | endp->active = 0; | |
1994 | endp->delayed = 0; | |
1995 | endp->endp_number = endp_number; | |
1996 | endp->u132 = u132; | |
e9df41c5 | 1997 | endp->hep = urb->ep; |
b40f8d39 DW |
1998 | endp->pipetype = usb_pipetype(urb->pipe); |
1999 | u132_endp_init_kref(u132, endp); | |
2000 | if (usb_pipein(urb->pipe)) { | |
2001 | endp->toggle_bits = 0x2; | |
2002 | usb_settoggle(udev->usb_device, usb_endp, 0, 0); | |
2003 | ring_number = 3; | |
2004 | endp->input = 1; | |
2005 | endp->output = 0; | |
2006 | udev->endp_number_in[usb_endp] = endp_number; | |
2007 | u132_udev_get_kref(u132, udev); | |
2008 | } else { | |
2009 | endp->toggle_bits = 0x2; | |
2010 | usb_settoggle(udev->usb_device, usb_endp, 1, 0); | |
2011 | ring_number = 2; | |
2012 | endp->input = 0; | |
2013 | endp->output = 1; | |
2014 | udev->endp_number_out[usb_endp] = endp_number; | |
2015 | u132_udev_get_kref(u132, udev); | |
2016 | } | |
2017 | ring = endp->ring = &u132->ring[ring_number - 1]; | |
2018 | if (ring->curr_endp) { | |
2019 | list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); | |
2020 | } else { | |
2021 | INIT_LIST_HEAD(&endp->endp_ring); | |
2022 | ring->curr_endp = endp; | |
2023 | } | |
2024 | ring->length += 1; | |
2025 | urb->hcpriv = u132; | |
2026 | endp->udev_number = address; | |
2027 | endp->usb_addr = usb_addr; | |
2028 | endp->usb_endp = usb_endp; | |
2029 | endp->queue_size = 1; | |
2030 | endp->queue_last = 0; | |
2031 | endp->queue_next = 0; | |
2032 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
2033 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2034 | u132_endp_queue_work(u132, endp, 0); | |
2035 | return 0; | |
d774efea TO |
2036 | } |
2037 | ||
2038 | static int queue_bulk_on_old_endpoint(struct u132 *u132, struct u132_udev *udev, | |
e9df41c5 | 2039 | struct urb *urb, |
b40f8d39 DW |
2040 | struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
2041 | u8 usb_endp, u8 address) | |
2042 | { | |
2043 | urb->hcpriv = u132; | |
2044 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
2045 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
2046 | } else { | |
2047 | struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq), | |
2048 | GFP_ATOMIC); | |
2049 | if (urbq == NULL) { | |
2050 | endp->queue_size -= 1; | |
2051 | return -ENOMEM; | |
2052 | } else { | |
2053 | list_add_tail(&urbq->urb_more, &endp->urb_more); | |
2054 | urbq->urb = urb; | |
2055 | } | |
2056 | } | |
2057 | return 0; | |
d774efea TO |
2058 | } |
2059 | ||
2060 | static int create_endpoint_and_queue_control(struct u132 *u132, | |
e9df41c5 | 2061 | struct urb *urb, |
b40f8d39 DW |
2062 | struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, |
2063 | gfp_t mem_flags) | |
d774efea | 2064 | { |
b40f8d39 | 2065 | struct u132_ring *ring; |
e9df41c5 AS |
2066 | unsigned long irqs; |
2067 | int rc; | |
2068 | u8 endp_number; | |
2069 | struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); | |
2070 | ||
b40f8d39 DW |
2071 | if (!endp) |
2072 | return -ENOMEM; | |
e9df41c5 AS |
2073 | |
2074 | spin_lock_init(&endp->queue_lock.slock); | |
2075 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
2076 | rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); | |
2077 | if (rc) { | |
2078 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2079 | kfree(endp); | |
2080 | return rc; | |
2081 | } | |
2082 | ||
2083 | endp_number = ++u132->num_endpoints; | |
2084 | urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; | |
b40f8d39 DW |
2085 | INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
2086 | INIT_LIST_HEAD(&endp->urb_more); | |
2087 | ring = endp->ring = &u132->ring[0]; | |
2088 | if (ring->curr_endp) { | |
2089 | list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); | |
2090 | } else { | |
2091 | INIT_LIST_HEAD(&endp->endp_ring); | |
2092 | ring->curr_endp = endp; | |
2093 | } | |
2094 | ring->length += 1; | |
2095 | endp->dequeueing = 0; | |
2096 | endp->edset_flush = 0; | |
2097 | endp->active = 0; | |
2098 | endp->delayed = 0; | |
2099 | endp->endp_number = endp_number; | |
2100 | endp->u132 = u132; | |
e9df41c5 | 2101 | endp->hep = urb->ep; |
b40f8d39 DW |
2102 | u132_endp_init_kref(u132, endp); |
2103 | u132_endp_get_kref(u132, endp); | |
2104 | if (usb_addr == 0) { | |
2105 | u8 address = u132->addr[usb_addr].address; | |
2106 | struct u132_udev *udev = &u132->udev[address]; | |
2107 | endp->udev_number = address; | |
2108 | endp->usb_addr = usb_addr; | |
2109 | endp->usb_endp = usb_endp; | |
2110 | endp->input = 1; | |
2111 | endp->output = 1; | |
2112 | endp->pipetype = usb_pipetype(urb->pipe); | |
2113 | u132_udev_init_kref(u132, udev); | |
2114 | u132_udev_get_kref(u132, udev); | |
2115 | udev->endp_number_in[usb_endp] = endp_number; | |
2116 | udev->endp_number_out[usb_endp] = endp_number; | |
2117 | urb->hcpriv = u132; | |
2118 | endp->queue_size = 1; | |
2119 | endp->queue_last = 0; | |
2120 | endp->queue_next = 0; | |
2121 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
2122 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2123 | u132_endp_queue_work(u132, endp, 0); | |
2124 | return 0; | |
2125 | } else { /*(usb_addr > 0) */ | |
2126 | u8 address = u132->addr[usb_addr].address; | |
2127 | struct u132_udev *udev = &u132->udev[address]; | |
2128 | endp->udev_number = address; | |
2129 | endp->usb_addr = usb_addr; | |
2130 | endp->usb_endp = usb_endp; | |
2131 | endp->input = 1; | |
2132 | endp->output = 1; | |
2133 | endp->pipetype = usb_pipetype(urb->pipe); | |
2134 | u132_udev_get_kref(u132, udev); | |
2135 | udev->enumeration = 2; | |
2136 | udev->endp_number_in[usb_endp] = endp_number; | |
2137 | udev->endp_number_out[usb_endp] = endp_number; | |
2138 | urb->hcpriv = u132; | |
2139 | endp->queue_size = 1; | |
2140 | endp->queue_last = 0; | |
2141 | endp->queue_next = 0; | |
2142 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
2143 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2144 | u132_endp_queue_work(u132, endp, 0); | |
2145 | return 0; | |
2146 | } | |
d774efea TO |
2147 | } |
2148 | ||
2149 | static int queue_control_on_old_endpoint(struct u132 *u132, | |
e9df41c5 | 2150 | struct urb *urb, |
b40f8d39 DW |
2151 | struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
2152 | u8 usb_endp) | |
2153 | { | |
2154 | if (usb_addr == 0) { | |
2155 | if (usb_pipein(urb->pipe)) { | |
2156 | urb->hcpriv = u132; | |
2157 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
2158 | endp->urb_list[ENDP_QUEUE_MASK & | |
2159 | endp->queue_last++] = urb; | |
2160 | } else { | |
2161 | struct u132_urbq *urbq = | |
2162 | kmalloc(sizeof(struct u132_urbq), | |
2163 | GFP_ATOMIC); | |
2164 | if (urbq == NULL) { | |
2165 | endp->queue_size -= 1; | |
2166 | return -ENOMEM; | |
2167 | } else { | |
2168 | list_add_tail(&urbq->urb_more, | |
2169 | &endp->urb_more); | |
2170 | urbq->urb = urb; | |
2171 | } | |
2172 | } | |
2173 | return 0; | |
2174 | } else { /* usb_pipeout(urb->pipe) */ | |
2175 | struct u132_addr *addr = &u132->addr[usb_dev->devnum]; | |
2176 | int I = MAX_U132_UDEVS; | |
2177 | int i = 0; | |
2178 | while (--I > 0) { | |
2179 | struct u132_udev *udev = &u132->udev[++i]; | |
2180 | if (udev->usb_device) { | |
2181 | continue; | |
2182 | } else { | |
2183 | udev->enumeration = 1; | |
2184 | u132->addr[0].address = i; | |
2185 | endp->udev_number = i; | |
2186 | udev->udev_number = i; | |
2187 | udev->usb_addr = usb_dev->devnum; | |
2188 | u132_udev_init_kref(u132, udev); | |
2189 | udev->endp_number_in[usb_endp] = | |
2190 | endp->endp_number; | |
2191 | u132_udev_get_kref(u132, udev); | |
2192 | udev->endp_number_out[usb_endp] = | |
2193 | endp->endp_number; | |
2194 | udev->usb_device = usb_dev; | |
2195 | ((u8 *) (urb->setup_packet))[2] = | |
2196 | addr->address = i; | |
2197 | u132_udev_get_kref(u132, udev); | |
2198 | break; | |
2199 | } | |
2200 | } | |
2201 | if (I == 0) { | |
2202 | dev_err(&u132->platform_dev->dev, "run out of d" | |
2203 | "evice space\n"); | |
2204 | return -EINVAL; | |
2205 | } | |
2206 | urb->hcpriv = u132; | |
2207 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
2208 | endp->urb_list[ENDP_QUEUE_MASK & | |
2209 | endp->queue_last++] = urb; | |
2210 | } else { | |
2211 | struct u132_urbq *urbq = | |
2212 | kmalloc(sizeof(struct u132_urbq), | |
2213 | GFP_ATOMIC); | |
2214 | if (urbq == NULL) { | |
2215 | endp->queue_size -= 1; | |
2216 | return -ENOMEM; | |
2217 | } else { | |
2218 | list_add_tail(&urbq->urb_more, | |
2219 | &endp->urb_more); | |
2220 | urbq->urb = urb; | |
2221 | } | |
2222 | } | |
2223 | return 0; | |
2224 | } | |
2225 | } else { /*(usb_addr > 0) */ | |
2226 | u8 address = u132->addr[usb_addr].address; | |
2227 | struct u132_udev *udev = &u132->udev[address]; | |
2228 | urb->hcpriv = u132; | |
2229 | if (udev->enumeration != 2) | |
2230 | udev->enumeration = 2; | |
2231 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
2232 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = | |
2233 | urb; | |
2234 | } else { | |
2235 | struct u132_urbq *urbq = | |
2236 | kmalloc(sizeof(struct u132_urbq), GFP_ATOMIC); | |
2237 | if (urbq == NULL) { | |
2238 | endp->queue_size -= 1; | |
2239 | return -ENOMEM; | |
2240 | } else { | |
2241 | list_add_tail(&urbq->urb_more, &endp->urb_more); | |
2242 | urbq->urb = urb; | |
2243 | } | |
2244 | } | |
2245 | return 0; | |
2246 | } | |
d774efea TO |
2247 | } |
2248 | ||
e9df41c5 AS |
2249 | static int u132_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, |
2250 | gfp_t mem_flags) | |
d774efea | 2251 | { |
b40f8d39 DW |
2252 | struct u132 *u132 = hcd_to_u132(hcd); |
2253 | if (irqs_disabled()) { | |
2254 | if (__GFP_WAIT & mem_flags) { | |
2255 | printk(KERN_ERR "invalid context for function that migh" | |
2256 | "t sleep\n"); | |
2257 | return -EINVAL; | |
2258 | } | |
2259 | } | |
2260 | if (u132->going > 1) { | |
2261 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2262 | , u132->going); | |
2263 | return -ENODEV; | |
2264 | } else if (u132->going > 0) { | |
eb231054 AS |
2265 | dev_err(&u132->platform_dev->dev, "device is being removed " |
2266 | "urb=%p\n", urb); | |
b40f8d39 DW |
2267 | return -ESHUTDOWN; |
2268 | } else { | |
2269 | u8 usb_addr = usb_pipedevice(urb->pipe); | |
2270 | u8 usb_endp = usb_pipeendpoint(urb->pipe); | |
2271 | struct usb_device *usb_dev = urb->dev; | |
2272 | if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) { | |
2273 | u8 address = u132->addr[usb_addr].address; | |
2274 | struct u132_udev *udev = &u132->udev[address]; | |
2275 | struct u132_endp *endp = urb->ep->hcpriv; | |
2276 | urb->actual_length = 0; | |
2277 | if (endp) { | |
2278 | unsigned long irqs; | |
2279 | int retval; | |
2280 | spin_lock_irqsave(&endp->queue_lock.slock, | |
2281 | irqs); | |
e9df41c5 AS |
2282 | retval = usb_hcd_link_urb_to_ep(hcd, urb); |
2283 | if (retval == 0) { | |
2284 | retval = queue_int_on_old_endpoint( | |
2285 | u132, udev, urb, | |
2286 | usb_dev, endp, | |
2287 | usb_addr, usb_endp, | |
2288 | address); | |
2289 | if (retval) | |
2290 | usb_hcd_unlink_urb_from_ep( | |
b40f8d39 DW |
2291 | hcd, urb); |
2292 | } | |
2293 | spin_unlock_irqrestore(&endp->queue_lock.slock, | |
2294 | irqs); | |
2295 | if (retval) { | |
2296 | return retval; | |
2297 | } else { | |
2298 | u132_endp_queue_work(u132, endp, | |
2299 | msecs_to_jiffies(urb->interval)) | |
2300 | ; | |
2301 | return 0; | |
e9df41c5 | 2302 | } |
b40f8d39 DW |
2303 | } else if (u132->num_endpoints == MAX_U132_ENDPS) { |
2304 | return -EINVAL; | |
2305 | } else { /*(endp == NULL) */ | |
2306 | return create_endpoint_and_queue_int(u132, udev, | |
e9df41c5 AS |
2307 | urb, usb_dev, usb_addr, |
2308 | usb_endp, address, mem_flags); | |
b40f8d39 DW |
2309 | } |
2310 | } else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { | |
2311 | dev_err(&u132->platform_dev->dev, "the hardware does no" | |
2312 | "t support PIPE_ISOCHRONOUS\n"); | |
2313 | return -EINVAL; | |
2314 | } else if (usb_pipetype(urb->pipe) == PIPE_BULK) { | |
2315 | u8 address = u132->addr[usb_addr].address; | |
2316 | struct u132_udev *udev = &u132->udev[address]; | |
2317 | struct u132_endp *endp = urb->ep->hcpriv; | |
2318 | urb->actual_length = 0; | |
2319 | if (endp) { | |
2320 | unsigned long irqs; | |
2321 | int retval; | |
2322 | spin_lock_irqsave(&endp->queue_lock.slock, | |
2323 | irqs); | |
e9df41c5 AS |
2324 | retval = usb_hcd_link_urb_to_ep(hcd, urb); |
2325 | if (retval == 0) { | |
2326 | retval = queue_bulk_on_old_endpoint( | |
2327 | u132, udev, urb, | |
2328 | usb_dev, endp, | |
2329 | usb_addr, usb_endp, | |
2330 | address); | |
2331 | if (retval) | |
2332 | usb_hcd_unlink_urb_from_ep( | |
b40f8d39 DW |
2333 | hcd, urb); |
2334 | } | |
2335 | spin_unlock_irqrestore(&endp->queue_lock.slock, | |
2336 | irqs); | |
2337 | if (retval) { | |
2338 | return retval; | |
2339 | } else { | |
2340 | u132_endp_queue_work(u132, endp, 0); | |
2341 | return 0; | |
e9df41c5 | 2342 | } |
b40f8d39 DW |
2343 | } else if (u132->num_endpoints == MAX_U132_ENDPS) { |
2344 | return -EINVAL; | |
2345 | } else | |
2346 | return create_endpoint_and_queue_bulk(u132, | |
e9df41c5 | 2347 | udev, urb, usb_dev, usb_addr, |
b40f8d39 DW |
2348 | usb_endp, address, mem_flags); |
2349 | } else { | |
2350 | struct u132_endp *endp = urb->ep->hcpriv; | |
2351 | u16 urb_size = 8; | |
2352 | u8 *b = urb->setup_packet; | |
2353 | int i = 0; | |
2354 | char data[30 * 3 + 4]; | |
2355 | char *d = data; | |
2356 | int m = (sizeof(data) - 1) / 3; | |
2357 | int l = 0; | |
2358 | data[0] = 0; | |
2359 | while (urb_size-- > 0) { | |
2360 | if (i > m) { | |
2361 | } else if (i++ < m) { | |
2362 | int w = sprintf(d, " %02X", *b++); | |
2363 | d += w; | |
2364 | l += w; | |
2365 | } else | |
2366 | d += sprintf(d, " .."); | |
2367 | } | |
2368 | if (endp) { | |
2369 | unsigned long irqs; | |
2370 | int retval; | |
2371 | spin_lock_irqsave(&endp->queue_lock.slock, | |
2372 | irqs); | |
e9df41c5 AS |
2373 | retval = usb_hcd_link_urb_to_ep(hcd, urb); |
2374 | if (retval == 0) { | |
2375 | retval = queue_control_on_old_endpoint( | |
2376 | u132, urb, usb_dev, | |
2377 | endp, usb_addr, | |
2378 | usb_endp); | |
2379 | if (retval) | |
2380 | usb_hcd_unlink_urb_from_ep( | |
2381 | hcd, urb); | |
2382 | } | |
b40f8d39 DW |
2383 | spin_unlock_irqrestore(&endp->queue_lock.slock, |
2384 | irqs); | |
2385 | if (retval) { | |
2386 | return retval; | |
2387 | } else { | |
2388 | u132_endp_queue_work(u132, endp, 0); | |
2389 | return 0; | |
2390 | } | |
2391 | } else if (u132->num_endpoints == MAX_U132_ENDPS) { | |
2392 | return -EINVAL; | |
2393 | } else | |
2394 | return create_endpoint_and_queue_control(u132, | |
e9df41c5 | 2395 | urb, usb_dev, usb_addr, usb_endp, |
b40f8d39 DW |
2396 | mem_flags); |
2397 | } | |
2398 | } | |
d774efea TO |
2399 | } |
2400 | ||
2401 | static int dequeue_from_overflow_chain(struct u132 *u132, | |
b40f8d39 DW |
2402 | struct u132_endp *endp, struct urb *urb) |
2403 | { | |
2404 | struct list_head *scan; | |
2405 | struct list_head *head = &endp->urb_more; | |
2406 | list_for_each(scan, head) { | |
2407 | struct u132_urbq *urbq = list_entry(scan, struct u132_urbq, | |
2408 | urb_more); | |
2409 | if (urbq->urb == urb) { | |
2410 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
2411 | list_del(scan); | |
2412 | endp->queue_size -= 1; | |
2413 | urb->error_count = 0; | |
4a00027d | 2414 | usb_hcd_giveback_urb(hcd, urb, 0); |
b40f8d39 DW |
2415 | return 0; |
2416 | } else | |
2417 | continue; | |
2418 | } | |
2419 | dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]=%p ring" | |
2420 | "[%d] %c%c usb_endp=%d usb_addr=%d size=%d next=%04X last=%04X" | |
2421 | "\n", urb, endp->endp_number, endp, endp->ring->number, | |
2422 | endp->input ? 'I' : ' ', endp->output ? 'O' : ' ', | |
2423 | endp->usb_endp, endp->usb_addr, endp->queue_size, | |
2424 | endp->queue_next, endp->queue_last); | |
2425 | return -EINVAL; | |
d774efea TO |
2426 | } |
2427 | ||
2428 | static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp, | |
e9df41c5 | 2429 | struct urb *urb, int status) |
d774efea | 2430 | { |
b40f8d39 | 2431 | unsigned long irqs; |
e9df41c5 AS |
2432 | int rc; |
2433 | ||
b40f8d39 | 2434 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
e9df41c5 AS |
2435 | rc = usb_hcd_check_unlink_urb(u132_to_hcd(u132), urb, status); |
2436 | if (rc) { | |
2437 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2438 | return rc; | |
2439 | } | |
b40f8d39 DW |
2440 | if (endp->queue_size == 0) { |
2441 | dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]" | |
2442 | "=%p ring[%d] %c%c usb_endp=%d usb_addr=%d\n", urb, | |
2443 | endp->endp_number, endp, endp->ring->number, | |
2444 | endp->input ? 'I' : ' ', endp->output ? 'O' : ' ', | |
2445 | endp->usb_endp, endp->usb_addr); | |
2446 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2447 | return -EINVAL; | |
2448 | } | |
2449 | if (urb == endp->urb_list[ENDP_QUEUE_MASK & endp->queue_next]) { | |
2450 | if (endp->active) { | |
2451 | endp->dequeueing = 1; | |
2452 | endp->edset_flush = 1; | |
2453 | u132_endp_queue_work(u132, endp, 0); | |
2454 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2455 | return 0; | |
2456 | } else { | |
2457 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
4a00027d | 2458 | u132_hcd_abandon_urb(u132, endp, urb, status); |
b40f8d39 DW |
2459 | return 0; |
2460 | } | |
2461 | } else { | |
2462 | u16 queue_list = 0; | |
2463 | u16 queue_size = endp->queue_size; | |
2464 | u16 queue_scan = endp->queue_next; | |
2465 | struct urb **urb_slot = NULL; | |
2466 | while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) { | |
2467 | if (urb == endp->urb_list[ENDP_QUEUE_MASK & | |
2468 | ++queue_scan]) { | |
2469 | urb_slot = &endp->urb_list[ENDP_QUEUE_MASK & | |
2470 | queue_scan]; | |
2471 | break; | |
2472 | } else | |
2473 | continue; | |
2474 | } | |
2475 | while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) { | |
2476 | *urb_slot = endp->urb_list[ENDP_QUEUE_MASK & | |
2477 | ++queue_scan]; | |
2478 | urb_slot = &endp->urb_list[ENDP_QUEUE_MASK & | |
2479 | queue_scan]; | |
2480 | } | |
2481 | if (urb_slot) { | |
2482 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
e9df41c5 AS |
2483 | |
2484 | usb_hcd_unlink_urb_from_ep(hcd, urb); | |
b40f8d39 DW |
2485 | endp->queue_size -= 1; |
2486 | if (list_empty(&endp->urb_more)) { | |
2487 | spin_unlock_irqrestore(&endp->queue_lock.slock, | |
2488 | irqs); | |
2489 | } else { | |
2490 | struct list_head *next = endp->urb_more.next; | |
2491 | struct u132_urbq *urbq = list_entry(next, | |
2492 | struct u132_urbq, urb_more); | |
2493 | list_del(next); | |
2494 | *urb_slot = urbq->urb; | |
2495 | spin_unlock_irqrestore(&endp->queue_lock.slock, | |
2496 | irqs); | |
2497 | kfree(urbq); | |
2498 | } urb->error_count = 0; | |
4a00027d | 2499 | usb_hcd_giveback_urb(hcd, urb, status); |
b40f8d39 DW |
2500 | return 0; |
2501 | } else if (list_empty(&endp->urb_more)) { | |
2502 | dev_err(&u132->platform_dev->dev, "urb=%p not found in " | |
2503 | "endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr" | |
2504 | "=%d size=%d next=%04X last=%04X\n", urb, | |
2505 | endp->endp_number, endp, endp->ring->number, | |
2506 | endp->input ? 'I' : ' ', | |
2507 | endp->output ? 'O' : ' ', endp->usb_endp, | |
2508 | endp->usb_addr, endp->queue_size, | |
2509 | endp->queue_next, endp->queue_last); | |
2510 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2511 | return -EINVAL; | |
2512 | } else { | |
e9df41c5 AS |
2513 | int retval; |
2514 | ||
2515 | usb_hcd_unlink_urb_from_ep(u132_to_hcd(u132), urb); | |
2516 | retval = dequeue_from_overflow_chain(u132, endp, | |
b40f8d39 DW |
2517 | urb); |
2518 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2519 | return retval; | |
2520 | } | |
2521 | } | |
d774efea TO |
2522 | } |
2523 | ||
e9df41c5 | 2524 | static int u132_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) |
d774efea | 2525 | { |
b40f8d39 DW |
2526 | struct u132 *u132 = hcd_to_u132(hcd); |
2527 | if (u132->going > 2) { | |
2528 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2529 | , u132->going); | |
2530 | return -ENODEV; | |
2531 | } else { | |
2532 | u8 usb_addr = usb_pipedevice(urb->pipe); | |
2533 | u8 usb_endp = usb_pipeendpoint(urb->pipe); | |
2534 | u8 address = u132->addr[usb_addr].address; | |
2535 | struct u132_udev *udev = &u132->udev[address]; | |
2536 | if (usb_pipein(urb->pipe)) { | |
2537 | u8 endp_number = udev->endp_number_in[usb_endp]; | |
2538 | struct u132_endp *endp = u132->endp[endp_number - 1]; | |
2539 | return u132_endp_urb_dequeue(u132, endp, urb, status); | |
2540 | } else { | |
2541 | u8 endp_number = udev->endp_number_out[usb_endp]; | |
2542 | struct u132_endp *endp = u132->endp[endp_number - 1]; | |
2543 | return u132_endp_urb_dequeue(u132, endp, urb, status); | |
2544 | } | |
2545 | } | |
d774efea TO |
2546 | } |
2547 | ||
2548 | static void u132_endpoint_disable(struct usb_hcd *hcd, | |
b40f8d39 DW |
2549 | struct usb_host_endpoint *hep) |
2550 | { | |
2551 | struct u132 *u132 = hcd_to_u132(hcd); | |
2552 | if (u132->going > 2) { | |
2553 | dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p hep=%p" | |
2554 | ") has been removed %d\n", u132, hcd, hep, | |
2555 | u132->going); | |
2556 | } else { | |
2557 | struct u132_endp *endp = hep->hcpriv; | |
2558 | if (endp) | |
2559 | u132_endp_put_kref(u132, endp); | |
2560 | } | |
d774efea TO |
2561 | } |
2562 | ||
2563 | static int u132_get_frame(struct usb_hcd *hcd) | |
2564 | { | |
b40f8d39 DW |
2565 | struct u132 *u132 = hcd_to_u132(hcd); |
2566 | if (u132->going > 1) { | |
2567 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2568 | , u132->going); | |
2569 | return -ENODEV; | |
2570 | } else if (u132->going > 0) { | |
2571 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2572 | return -ESHUTDOWN; | |
2573 | } else { | |
2574 | int frame = 0; | |
2575 | dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n"); | |
2576 | msleep(100); | |
2577 | return frame; | |
2578 | } | |
d774efea TO |
2579 | } |
2580 | ||
2581 | static int u132_roothub_descriptor(struct u132 *u132, | |
b40f8d39 DW |
2582 | struct usb_hub_descriptor *desc) |
2583 | { | |
2584 | int retval; | |
2585 | u16 temp; | |
2586 | u32 rh_a = -1; | |
2587 | u32 rh_b = -1; | |
2588 | retval = u132_read_pcimem(u132, roothub.a, &rh_a); | |
2589 | if (retval) | |
2590 | return retval; | |
2591 | desc->bDescriptorType = 0x29; | |
2592 | desc->bPwrOn2PwrGood = (rh_a & RH_A_POTPGT) >> 24; | |
2593 | desc->bHubContrCurrent = 0; | |
2594 | desc->bNbrPorts = u132->num_ports; | |
2595 | temp = 1 + (u132->num_ports / 8); | |
2596 | desc->bDescLength = 7 + 2 * temp; | |
2597 | temp = 0; | |
2598 | if (rh_a & RH_A_NPS) | |
2599 | temp |= 0x0002; | |
2600 | if (rh_a & RH_A_PSM) | |
2601 | temp |= 0x0001; | |
2602 | if (rh_a & RH_A_NOCP) | |
2603 | temp |= 0x0010; | |
2604 | else if (rh_a & RH_A_OCPM) | |
2605 | temp |= 0x0008; | |
2606 | desc->wHubCharacteristics = cpu_to_le16(temp); | |
2607 | retval = u132_read_pcimem(u132, roothub.b, &rh_b); | |
2608 | if (retval) | |
2609 | return retval; | |
2610 | memset(desc->bitmap, 0xff, sizeof(desc->bitmap)); | |
2611 | desc->bitmap[0] = rh_b & RH_B_DR; | |
2612 | if (u132->num_ports > 7) { | |
2613 | desc->bitmap[1] = (rh_b & RH_B_DR) >> 8; | |
2614 | desc->bitmap[2] = 0xff; | |
2615 | } else | |
2616 | desc->bitmap[1] = 0xff; | |
2617 | return 0; | |
d774efea TO |
2618 | } |
2619 | ||
2620 | static int u132_roothub_status(struct u132 *u132, __le32 *desc) | |
2621 | { | |
b40f8d39 DW |
2622 | u32 rh_status = -1; |
2623 | int ret_status = u132_read_pcimem(u132, roothub.status, &rh_status); | |
2624 | *desc = cpu_to_le32(rh_status); | |
2625 | return ret_status; | |
d774efea TO |
2626 | } |
2627 | ||
2628 | static int u132_roothub_portstatus(struct u132 *u132, __le32 *desc, u16 wIndex) | |
2629 | { | |
b40f8d39 DW |
2630 | if (wIndex == 0 || wIndex > u132->num_ports) { |
2631 | return -EINVAL; | |
2632 | } else { | |
2633 | int port = wIndex - 1; | |
2634 | u32 rh_portstatus = -1; | |
2635 | int ret_portstatus = u132_read_pcimem(u132, | |
2636 | roothub.portstatus[port], &rh_portstatus); | |
2637 | *desc = cpu_to_le32(rh_portstatus); | |
2638 | if (*(u16 *) (desc + 2)) { | |
2639 | dev_info(&u132->platform_dev->dev, "Port %d Status Chan" | |
2640 | "ge = %08X\n", port, *desc); | |
2641 | } | |
2642 | return ret_portstatus; | |
2643 | } | |
d774efea TO |
2644 | } |
2645 | ||
2646 | ||
2647 | /* this timer value might be vendor-specific ... */ | |
2648 | #define PORT_RESET_HW_MSEC 10 | |
2649 | #define PORT_RESET_MSEC 10 | |
2650 | /* wrap-aware logic morphed from <linux/jiffies.h> */ | |
2651 | #define tick_before(t1, t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0) | |
2652 | static int u132_roothub_portreset(struct u132 *u132, int port_index) | |
2653 | { | |
b40f8d39 DW |
2654 | int retval; |
2655 | u32 fmnumber; | |
2656 | u16 now; | |
2657 | u16 reset_done; | |
2658 | retval = u132_read_pcimem(u132, fmnumber, &fmnumber); | |
2659 | if (retval) | |
2660 | return retval; | |
2661 | now = fmnumber; | |
2662 | reset_done = now + PORT_RESET_MSEC; | |
2663 | do { | |
2664 | u32 portstat; | |
2665 | do { | |
2666 | retval = u132_read_pcimem(u132, | |
2667 | roothub.portstatus[port_index], &portstat); | |
2668 | if (retval) | |
2669 | return retval; | |
2670 | if (RH_PS_PRS & portstat) | |
2671 | continue; | |
2672 | else | |
2673 | break; | |
2674 | } while (tick_before(now, reset_done)); | |
2675 | if (RH_PS_PRS & portstat) | |
2676 | return -ENODEV; | |
2677 | if (RH_PS_CCS & portstat) { | |
2678 | if (RH_PS_PRSC & portstat) { | |
2679 | retval = u132_write_pcimem(u132, | |
2680 | roothub.portstatus[port_index], | |
2681 | RH_PS_PRSC); | |
2682 | if (retval) | |
2683 | return retval; | |
2684 | } | |
2685 | } else | |
2686 | break; /* start the next reset, | |
2687 | sleep till it's probably done */ | |
2688 | retval = u132_write_pcimem(u132, roothub.portstatus[port_index], | |
2689 | RH_PS_PRS); | |
2690 | if (retval) | |
2691 | return retval; | |
2692 | msleep(PORT_RESET_HW_MSEC); | |
2693 | retval = u132_read_pcimem(u132, fmnumber, &fmnumber); | |
2694 | if (retval) | |
2695 | return retval; | |
2696 | now = fmnumber; | |
2697 | } while (tick_before(now, reset_done)); | |
2698 | return 0; | |
d774efea TO |
2699 | } |
2700 | ||
2701 | static int u132_roothub_setportfeature(struct u132 *u132, u16 wValue, | |
b40f8d39 DW |
2702 | u16 wIndex) |
2703 | { | |
2704 | if (wIndex == 0 || wIndex > u132->num_ports) { | |
2705 | return -EINVAL; | |
2706 | } else { | |
2707 | int retval; | |
2708 | int port_index = wIndex - 1; | |
2709 | struct u132_port *port = &u132->port[port_index]; | |
2710 | port->Status &= ~(1 << wValue); | |
2711 | switch (wValue) { | |
2712 | case USB_PORT_FEAT_SUSPEND: | |
2713 | retval = u132_write_pcimem(u132, | |
2714 | roothub.portstatus[port_index], RH_PS_PSS); | |
2715 | if (retval) | |
2716 | return retval; | |
2717 | return 0; | |
2718 | case USB_PORT_FEAT_POWER: | |
2719 | retval = u132_write_pcimem(u132, | |
2720 | roothub.portstatus[port_index], RH_PS_PPS); | |
2721 | if (retval) | |
2722 | return retval; | |
2723 | return 0; | |
2724 | case USB_PORT_FEAT_RESET: | |
2725 | retval = u132_roothub_portreset(u132, port_index); | |
2726 | if (retval) | |
2727 | return retval; | |
2728 | return 0; | |
2729 | default: | |
2730 | return -EPIPE; | |
2731 | } | |
2732 | } | |
d774efea TO |
2733 | } |
2734 | ||
2735 | static int u132_roothub_clearportfeature(struct u132 *u132, u16 wValue, | |
b40f8d39 DW |
2736 | u16 wIndex) |
2737 | { | |
2738 | if (wIndex == 0 || wIndex > u132->num_ports) { | |
2739 | return -EINVAL; | |
2740 | } else { | |
2741 | int port_index = wIndex - 1; | |
2742 | u32 temp; | |
2743 | int retval; | |
2744 | struct u132_port *port = &u132->port[port_index]; | |
2745 | port->Status &= ~(1 << wValue); | |
2746 | switch (wValue) { | |
2747 | case USB_PORT_FEAT_ENABLE: | |
2748 | temp = RH_PS_CCS; | |
2749 | break; | |
2750 | case USB_PORT_FEAT_C_ENABLE: | |
2751 | temp = RH_PS_PESC; | |
2752 | break; | |
2753 | case USB_PORT_FEAT_SUSPEND: | |
2754 | temp = RH_PS_POCI; | |
2755 | if ((u132->hc_control & OHCI_CTRL_HCFS) | |
2756 | != OHCI_USB_OPER) { | |
2757 | dev_err(&u132->platform_dev->dev, "TODO resume_" | |
2758 | "root_hub\n"); | |
2759 | } | |
2760 | break; | |
2761 | case USB_PORT_FEAT_C_SUSPEND: | |
2762 | temp = RH_PS_PSSC; | |
2763 | break; | |
2764 | case USB_PORT_FEAT_POWER: | |
2765 | temp = RH_PS_LSDA; | |
2766 | break; | |
2767 | case USB_PORT_FEAT_C_CONNECTION: | |
2768 | temp = RH_PS_CSC; | |
2769 | break; | |
2770 | case USB_PORT_FEAT_C_OVER_CURRENT: | |
2771 | temp = RH_PS_OCIC; | |
2772 | break; | |
2773 | case USB_PORT_FEAT_C_RESET: | |
2774 | temp = RH_PS_PRSC; | |
2775 | break; | |
2776 | default: | |
2777 | return -EPIPE; | |
2778 | } | |
2779 | retval = u132_write_pcimem(u132, roothub.portstatus[port_index], | |
2780 | temp); | |
2781 | if (retval) | |
2782 | return retval; | |
2783 | return 0; | |
2784 | } | |
d774efea TO |
2785 | } |
2786 | ||
2787 | ||
2788 | /* the virtual root hub timer IRQ checks for hub status*/ | |
2789 | static int u132_hub_status_data(struct usb_hcd *hcd, char *buf) | |
2790 | { | |
b40f8d39 DW |
2791 | struct u132 *u132 = hcd_to_u132(hcd); |
2792 | if (u132->going > 1) { | |
2793 | dev_err(&u132->platform_dev->dev, "device hcd=%p has been remov" | |
2794 | "ed %d\n", hcd, u132->going); | |
2795 | return -ENODEV; | |
2796 | } else if (u132->going > 0) { | |
2797 | dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" | |
2798 | "ed\n", hcd); | |
2799 | return -ESHUTDOWN; | |
2800 | } else { | |
2801 | int i, changed = 0, length = 1; | |
2802 | if (u132->flags & OHCI_QUIRK_AMD756) { | |
2803 | if ((u132->hc_roothub_a & RH_A_NDP) > MAX_ROOT_PORTS) { | |
2804 | dev_err(&u132->platform_dev->dev, "bogus NDP, r" | |
2805 | "ereads as NDP=%d\n", | |
2806 | u132->hc_roothub_a & RH_A_NDP); | |
2807 | goto done; | |
2808 | } | |
2809 | } | |
2810 | if (u132->hc_roothub_status & (RH_HS_LPSC | RH_HS_OCIC)) | |
2811 | buf[0] = changed = 1; | |
2812 | else | |
2813 | buf[0] = 0; | |
2814 | if (u132->num_ports > 7) { | |
2815 | buf[1] = 0; | |
2816 | length++; | |
2817 | } | |
2818 | for (i = 0; i < u132->num_ports; i++) { | |
2819 | if (u132->hc_roothub_portstatus[i] & (RH_PS_CSC | | |
2820 | RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC | | |
2821 | RH_PS_PRSC)) { | |
2822 | changed = 1; | |
2823 | if (i < 7) | |
2824 | buf[0] |= 1 << (i + 1); | |
2825 | else | |
2826 | buf[1] |= 1 << (i - 7); | |
2827 | continue; | |
2828 | } | |
2829 | if (!(u132->hc_roothub_portstatus[i] & RH_PS_CCS)) | |
2830 | continue; | |
2831 | ||
2832 | if ((u132->hc_roothub_portstatus[i] & RH_PS_PSS)) | |
2833 | continue; | |
2834 | } | |
2835 | done: | |
2836 | return changed ? length : 0; | |
2837 | } | |
d774efea TO |
2838 | } |
2839 | ||
2840 | static int u132_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, | |
b40f8d39 DW |
2841 | u16 wIndex, char *buf, u16 wLength) |
2842 | { | |
2843 | struct u132 *u132 = hcd_to_u132(hcd); | |
2844 | if (u132->going > 1) { | |
2845 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2846 | , u132->going); | |
2847 | return -ENODEV; | |
2848 | } else if (u132->going > 0) { | |
2849 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2850 | return -ESHUTDOWN; | |
2851 | } else { | |
2852 | int retval = 0; | |
2853 | mutex_lock(&u132->sw_lock); | |
2854 | switch (typeReq) { | |
2855 | case ClearHubFeature: | |
2856 | switch (wValue) { | |
2857 | case C_HUB_OVER_CURRENT: | |
2858 | case C_HUB_LOCAL_POWER: | |
2859 | break; | |
2860 | default: | |
2861 | goto stall; | |
2862 | } | |
2863 | break; | |
2864 | case SetHubFeature: | |
2865 | switch (wValue) { | |
2866 | case C_HUB_OVER_CURRENT: | |
2867 | case C_HUB_LOCAL_POWER: | |
2868 | break; | |
2869 | default: | |
2870 | goto stall; | |
2871 | } | |
2872 | break; | |
2873 | case ClearPortFeature:{ | |
2874 | retval = u132_roothub_clearportfeature(u132, | |
2875 | wValue, wIndex); | |
2876 | if (retval) | |
2877 | goto error; | |
2878 | break; | |
2879 | } | |
2880 | case GetHubDescriptor:{ | |
2881 | retval = u132_roothub_descriptor(u132, | |
2882 | (struct usb_hub_descriptor *)buf); | |
2883 | if (retval) | |
2884 | goto error; | |
2885 | break; | |
2886 | } | |
2887 | case GetHubStatus:{ | |
2888 | retval = u132_roothub_status(u132, | |
2889 | (__le32 *) buf); | |
2890 | if (retval) | |
2891 | goto error; | |
2892 | break; | |
2893 | } | |
2894 | case GetPortStatus:{ | |
2895 | retval = u132_roothub_portstatus(u132, | |
2896 | (__le32 *) buf, wIndex); | |
2897 | if (retval) | |
2898 | goto error; | |
2899 | break; | |
2900 | } | |
2901 | case SetPortFeature:{ | |
2902 | retval = u132_roothub_setportfeature(u132, | |
2903 | wValue, wIndex); | |
2904 | if (retval) | |
2905 | goto error; | |
2906 | break; | |
2907 | } | |
2908 | default: | |
2909 | goto stall; | |
2910 | error: | |
2911 | u132_disable(u132); | |
2912 | u132->going = 1; | |
2913 | break; | |
2914 | stall: | |
2915 | retval = -EPIPE; | |
2916 | break; | |
2917 | } | |
2918 | mutex_unlock(&u132->sw_lock); | |
2919 | return retval; | |
2920 | } | |
d774efea TO |
2921 | } |
2922 | ||
2923 | static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num) | |
2924 | { | |
b40f8d39 DW |
2925 | struct u132 *u132 = hcd_to_u132(hcd); |
2926 | if (u132->going > 1) { | |
2927 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2928 | , u132->going); | |
2929 | return -ENODEV; | |
2930 | } else if (u132->going > 0) { | |
2931 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2932 | return -ESHUTDOWN; | |
2933 | } else | |
2934 | return 0; | |
d774efea TO |
2935 | } |
2936 | ||
09ca8adb LT |
2937 | static void u132_hub_irq_enable(struct usb_hcd *hcd) |
2938 | { | |
2939 | struct u132 *u132 = hcd_to_u132(hcd); | |
2940 | if (u132->going > 1) { | |
2941 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2942 | , u132->going); | |
2943 | } else if (u132->going > 0) | |
2944 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2945 | } | |
2946 | ||
d774efea TO |
2947 | |
2948 | #ifdef CONFIG_PM | |
d774efea TO |
2949 | static int u132_bus_suspend(struct usb_hcd *hcd) |
2950 | { | |
b40f8d39 DW |
2951 | struct u132 *u132 = hcd_to_u132(hcd); |
2952 | if (u132->going > 1) { | |
2953 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2954 | , u132->going); | |
2955 | return -ENODEV; | |
2956 | } else if (u132->going > 0) { | |
2957 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2958 | return -ESHUTDOWN; | |
2959 | } else | |
2960 | return 0; | |
d774efea TO |
2961 | } |
2962 | ||
2963 | static int u132_bus_resume(struct usb_hcd *hcd) | |
2964 | { | |
b40f8d39 DW |
2965 | struct u132 *u132 = hcd_to_u132(hcd); |
2966 | if (u132->going > 1) { | |
2967 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2968 | , u132->going); | |
2969 | return -ENODEV; | |
2970 | } else if (u132->going > 0) { | |
2971 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2972 | return -ESHUTDOWN; | |
2973 | } else | |
2974 | return 0; | |
d774efea TO |
2975 | } |
2976 | ||
2977 | #else | |
d774efea TO |
2978 | #define u132_bus_suspend NULL |
2979 | #define u132_bus_resume NULL | |
2980 | #endif | |
2981 | static struct hc_driver u132_hc_driver = { | |
b40f8d39 DW |
2982 | .description = hcd_name, |
2983 | .hcd_priv_size = sizeof(struct u132), | |
2984 | .irq = NULL, | |
2985 | .flags = HCD_USB11 | HCD_MEMORY, | |
2986 | .reset = u132_hcd_reset, | |
2987 | .start = u132_hcd_start, | |
b40f8d39 DW |
2988 | .stop = u132_hcd_stop, |
2989 | .urb_enqueue = u132_urb_enqueue, | |
2990 | .urb_dequeue = u132_urb_dequeue, | |
2991 | .endpoint_disable = u132_endpoint_disable, | |
2992 | .get_frame_number = u132_get_frame, | |
2993 | .hub_status_data = u132_hub_status_data, | |
2994 | .hub_control = u132_hub_control, | |
2995 | .bus_suspend = u132_bus_suspend, | |
2996 | .bus_resume = u132_bus_resume, | |
2997 | .start_port_reset = u132_start_port_reset, | |
09ca8adb | 2998 | .hub_irq_enable = u132_hub_irq_enable, |
d774efea TO |
2999 | }; |
3000 | ||
3001 | /* | |
3002 | * This function may be called by the USB core whilst the "usb_all_devices_rwsem" | |
3003 | * is held for writing, thus this module must not call usb_remove_hcd() | |
3004 | * synchronously - but instead should immediately stop activity to the | |
0779bf2d | 3005 | * device and asynchronously call usb_remove_hcd() |
d774efea TO |
3006 | */ |
3007 | static int __devexit u132_remove(struct platform_device *pdev) | |
3008 | { | |
b40f8d39 DW |
3009 | struct usb_hcd *hcd = platform_get_drvdata(pdev); |
3010 | if (hcd) { | |
3011 | struct u132 *u132 = hcd_to_u132(hcd); | |
3012 | if (u132->going++ > 1) { | |
3013 | dev_err(&u132->platform_dev->dev, "already being remove" | |
4b87361d | 3014 | "d\n"); |
b40f8d39 DW |
3015 | return -ENODEV; |
3016 | } else { | |
3017 | int rings = MAX_U132_RINGS; | |
3018 | int endps = MAX_U132_ENDPS; | |
3019 | dev_err(&u132->platform_dev->dev, "removing device u132" | |
4b87361d | 3020 | ".%d\n", u132->sequence_num); |
b40f8d39 DW |
3021 | msleep(100); |
3022 | mutex_lock(&u132->sw_lock); | |
3023 | u132_monitor_cancel_work(u132); | |
3024 | while (rings-- > 0) { | |
3025 | struct u132_ring *ring = &u132->ring[rings]; | |
3026 | u132_ring_cancel_work(u132, ring); | |
3027 | } while (endps-- > 0) { | |
3028 | struct u132_endp *endp = u132->endp[endps]; | |
3029 | if (endp) | |
3030 | u132_endp_cancel_work(u132, endp); | |
3031 | } | |
3032 | u132->going += 1; | |
3033 | printk(KERN_INFO "removing device u132.%d\n", | |
3034 | u132->sequence_num); | |
3035 | mutex_unlock(&u132->sw_lock); | |
3036 | usb_remove_hcd(hcd); | |
3037 | u132_u132_put_kref(u132); | |
3038 | return 0; | |
3039 | } | |
3040 | } else | |
3041 | return 0; | |
d774efea TO |
3042 | } |
3043 | ||
3044 | static void u132_initialise(struct u132 *u132, struct platform_device *pdev) | |
3045 | { | |
b40f8d39 DW |
3046 | int rings = MAX_U132_RINGS; |
3047 | int ports = MAX_U132_PORTS; | |
3048 | int addrs = MAX_U132_ADDRS; | |
3049 | int udevs = MAX_U132_UDEVS; | |
3050 | int endps = MAX_U132_ENDPS; | |
3051 | u132->board = pdev->dev.platform_data; | |
3052 | u132->platform_dev = pdev; | |
3053 | u132->power = 0; | |
3054 | u132->reset = 0; | |
3055 | mutex_init(&u132->sw_lock); | |
50d8ca9b | 3056 | mutex_init(&u132->scheduler_lock); |
b40f8d39 DW |
3057 | while (rings-- > 0) { |
3058 | struct u132_ring *ring = &u132->ring[rings]; | |
3059 | ring->u132 = u132; | |
3060 | ring->number = rings + 1; | |
3061 | ring->length = 0; | |
3062 | ring->curr_endp = NULL; | |
3063 | INIT_DELAYED_WORK(&ring->scheduler, | |
c4028958 | 3064 | u132_hcd_ring_work_scheduler); |
b40f8d39 DW |
3065 | } |
3066 | mutex_lock(&u132->sw_lock); | |
3067 | INIT_DELAYED_WORK(&u132->monitor, u132_hcd_monitor_work); | |
3068 | while (ports-- > 0) { | |
3069 | struct u132_port *port = &u132->port[ports]; | |
3070 | port->u132 = u132; | |
3071 | port->reset = 0; | |
3072 | port->enable = 0; | |
3073 | port->power = 0; | |
3074 | port->Status = 0; | |
3075 | } | |
3076 | while (addrs-- > 0) { | |
3077 | struct u132_addr *addr = &u132->addr[addrs]; | |
3078 | addr->address = 0; | |
3079 | } | |
3080 | while (udevs-- > 0) { | |
3081 | struct u132_udev *udev = &u132->udev[udevs]; | |
3082 | int i = ARRAY_SIZE(udev->endp_number_in); | |
3083 | int o = ARRAY_SIZE(udev->endp_number_out); | |
3084 | udev->usb_device = NULL; | |
3085 | udev->udev_number = 0; | |
3086 | udev->usb_addr = 0; | |
3087 | udev->portnumber = 0; | |
3088 | while (i-- > 0) | |
3089 | udev->endp_number_in[i] = 0; | |
3090 | ||
3091 | while (o-- > 0) | |
3092 | udev->endp_number_out[o] = 0; | |
3093 | ||
3094 | } | |
3095 | while (endps-- > 0) | |
3096 | u132->endp[endps] = NULL; | |
3097 | ||
3098 | mutex_unlock(&u132->sw_lock); | |
3099 | return; | |
d774efea TO |
3100 | } |
3101 | ||
3102 | static int __devinit u132_probe(struct platform_device *pdev) | |
3103 | { | |
b40f8d39 DW |
3104 | struct usb_hcd *hcd; |
3105 | int retval; | |
3106 | u32 control; | |
3107 | u32 rh_a = -1; | |
3108 | u32 num_ports; | |
3109 | ||
3110 | msleep(100); | |
3111 | if (u132_exiting > 0) | |
3112 | return -ENODEV; | |
3113 | ||
3114 | retval = ftdi_write_pcimem(pdev, intrdisable, OHCI_INTR_MIE); | |
3115 | if (retval) | |
3116 | return retval; | |
3117 | retval = ftdi_read_pcimem(pdev, control, &control); | |
3118 | if (retval) | |
3119 | return retval; | |
3120 | retval = ftdi_read_pcimem(pdev, roothub.a, &rh_a); | |
3121 | if (retval) | |
3122 | return retval; | |
3123 | num_ports = rh_a & RH_A_NDP; /* refuse to confuse usbcore */ | |
3124 | if (pdev->dev.dma_mask) | |
3125 | return -EINVAL; | |
3126 | ||
7071a3ce | 3127 | hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, dev_name(&pdev->dev)); |
b40f8d39 DW |
3128 | if (!hcd) { |
3129 | printk(KERN_ERR "failed to create the usb hcd struct for U132\n" | |
3130 | ); | |
3131 | ftdi_elan_gone_away(pdev); | |
3132 | return -ENOMEM; | |
3133 | } else { | |
3134 | int retval = 0; | |
3135 | struct u132 *u132 = hcd_to_u132(hcd); | |
3136 | hcd->rsrc_start = 0; | |
3137 | mutex_lock(&u132_module_lock); | |
3138 | list_add_tail(&u132->u132_list, &u132_static_list); | |
3139 | u132->sequence_num = ++u132_instances; | |
3140 | mutex_unlock(&u132_module_lock); | |
3141 | u132_u132_init_kref(u132); | |
3142 | u132_initialise(u132, pdev); | |
3143 | hcd->product_desc = "ELAN U132 Host Controller"; | |
3144 | retval = usb_add_hcd(hcd, 0, 0); | |
3145 | if (retval != 0) { | |
3146 | dev_err(&u132->platform_dev->dev, "init error %d\n", | |
3147 | retval); | |
3148 | u132_u132_put_kref(u132); | |
3149 | return retval; | |
3150 | } else { | |
3151 | u132_monitor_queue_work(u132, 100); | |
3152 | return 0; | |
3153 | } | |
3154 | } | |
d774efea TO |
3155 | } |
3156 | ||
3157 | ||
3158 | #ifdef CONFIG_PM | |
3159 | /* for this device there's no useful distinction between the controller | |
3160 | * and its root hub, except that the root hub only gets direct PM calls | |
3161 | * when CONFIG_USB_SUSPEND is enabled. | |
3162 | */ | |
3163 | static int u132_suspend(struct platform_device *pdev, pm_message_t state) | |
3164 | { | |
b40f8d39 DW |
3165 | struct usb_hcd *hcd = platform_get_drvdata(pdev); |
3166 | struct u132 *u132 = hcd_to_u132(hcd); | |
3167 | if (u132->going > 1) { | |
3168 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
3169 | , u132->going); | |
3170 | return -ENODEV; | |
3171 | } else if (u132->going > 0) { | |
3172 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
3173 | return -ESHUTDOWN; | |
3174 | } else { | |
038eb0ea | 3175 | int retval = 0, ports; |
3a2d5b70 RW |
3176 | |
3177 | switch (state.event) { | |
3178 | case PM_EVENT_FREEZE: | |
b40f8d39 | 3179 | retval = u132_bus_suspend(hcd); |
3a2d5b70 RW |
3180 | break; |
3181 | case PM_EVENT_SUSPEND: | |
3182 | case PM_EVENT_HIBERNATE: | |
038eb0ea | 3183 | ports = MAX_U132_PORTS; |
b40f8d39 DW |
3184 | while (ports-- > 0) { |
3185 | port_power(u132, ports, 0); | |
3186 | } | |
3a2d5b70 RW |
3187 | break; |
3188 | } | |
b40f8d39 DW |
3189 | return retval; |
3190 | } | |
d774efea TO |
3191 | } |
3192 | ||
3193 | static int u132_resume(struct platform_device *pdev) | |
3194 | { | |
b40f8d39 DW |
3195 | struct usb_hcd *hcd = platform_get_drvdata(pdev); |
3196 | struct u132 *u132 = hcd_to_u132(hcd); | |
3197 | if (u132->going > 1) { | |
3198 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
3199 | , u132->going); | |
3200 | return -ENODEV; | |
3201 | } else if (u132->going > 0) { | |
3202 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
3203 | return -ESHUTDOWN; | |
3204 | } else { | |
3205 | int retval = 0; | |
70a1c9e0 | 3206 | if (!u132->port[0].power) { |
b40f8d39 DW |
3207 | int ports = MAX_U132_PORTS; |
3208 | while (ports-- > 0) { | |
3209 | port_power(u132, ports, 1); | |
3210 | } | |
3211 | retval = 0; | |
3212 | } else { | |
3213 | retval = u132_bus_resume(hcd); | |
3214 | } | |
3215 | return retval; | |
3216 | } | |
d774efea TO |
3217 | } |
3218 | ||
3219 | #else | |
3220 | #define u132_suspend NULL | |
3221 | #define u132_resume NULL | |
3222 | #endif | |
3223 | /* | |
0779bf2d | 3224 | * this driver is loaded explicitly by ftdi_u132 |
d774efea TO |
3225 | * |
3226 | * the platform_driver struct is static because it is per type of module | |
3227 | */ | |
3228 | static struct platform_driver u132_platform_driver = { | |
b40f8d39 DW |
3229 | .probe = u132_probe, |
3230 | .remove = __devexit_p(u132_remove), | |
3231 | .suspend = u132_suspend, | |
3232 | .resume = u132_resume, | |
3233 | .driver = { | |
3234 | .name = (char *)hcd_name, | |
3235 | .owner = THIS_MODULE, | |
3236 | }, | |
d774efea TO |
3237 | }; |
3238 | static int __init u132_hcd_init(void) | |
3239 | { | |
b40f8d39 DW |
3240 | int retval; |
3241 | INIT_LIST_HEAD(&u132_static_list); | |
3242 | u132_instances = 0; | |
3243 | u132_exiting = 0; | |
3244 | mutex_init(&u132_module_lock); | |
3245 | if (usb_disabled()) | |
3246 | return -ENODEV; | |
3247 | printk(KERN_INFO "driver %s built at %s on %s\n", hcd_name, __TIME__, | |
3248 | __DATE__); | |
3249 | workqueue = create_singlethread_workqueue("u132"); | |
3250 | retval = platform_driver_register(&u132_platform_driver); | |
3251 | return retval; | |
d774efea TO |
3252 | } |
3253 | ||
3254 | ||
3255 | module_init(u132_hcd_init); | |
3256 | static void __exit u132_hcd_exit(void) | |
3257 | { | |
b40f8d39 DW |
3258 | struct u132 *u132; |
3259 | struct u132 *temp; | |
3260 | mutex_lock(&u132_module_lock); | |
3261 | u132_exiting += 1; | |
3262 | mutex_unlock(&u132_module_lock); | |
3263 | list_for_each_entry_safe(u132, temp, &u132_static_list, u132_list) { | |
3264 | platform_device_unregister(u132->platform_dev); | |
3265 | } | |
3266 | platform_driver_unregister(&u132_platform_driver); | |
3267 | printk(KERN_INFO "u132-hcd driver deregistered\n"); | |
3268 | wait_event(u132_hcd_wait, u132_instances == 0); | |
3269 | flush_workqueue(workqueue); | |
3270 | destroy_workqueue(workqueue); | |
d774efea TO |
3271 | } |
3272 | ||
3273 | ||
3274 | module_exit(u132_hcd_exit); | |
3275 | MODULE_LICENSE("GPL"); | |
f4fce61d | 3276 | MODULE_ALIAS("platform:u132_hcd"); |