Commit | Line | Data |
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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> | |
27729aad | 52 | #include <linux/usb/hcd.h> |
d774efea TO |
53 | #include <linux/workqueue.h> |
54 | #include <linux/platform_device.h> | |
d2066eb6 | 55 | #include <linux/mutex.h> |
d774efea TO |
56 | #include <asm/io.h> |
57 | #include <asm/irq.h> | |
d774efea | 58 | #include <asm/byteorder.h> |
47f8468e DB |
59 | |
60 | /* FIXME ohci.h is ONLY for internal use by the OHCI driver. | |
61 | * If you're going to try stuff like this, you need to split | |
62 | * out shareable stuff (register declarations?) into its own | |
63 | * file, maybe name <linux/usb/ohci.h> | |
64 | */ | |
65 | ||
d774efea TO |
66 | #include "ohci.h" |
67 | #define OHCI_CONTROL_INIT OHCI_CTRL_CBSR | |
68 | #define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \ | |
b40f8d39 | 69 | OHCI_INTR_WDH) |
d774efea TO |
70 | MODULE_AUTHOR("Tony Olech - Elan Digital Systems Limited"); |
71 | MODULE_DESCRIPTION("U132 USB Host Controller Driver"); | |
72 | MODULE_LICENSE("GPL"); | |
73 | #define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444) | |
74 | INT_MODULE_PARM(testing, 0); | |
75 | /* Some boards misreport power switching/overcurrent*/ | |
900937c0 | 76 | static bool distrust_firmware = true; |
d774efea TO |
77 | module_param(distrust_firmware, bool, 0); |
78 | MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren" | |
b40f8d39 | 79 | "t setup"); |
27a3de4c | 80 | static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait); |
d774efea TO |
81 | /* |
82 | * u132_module_lock exists to protect access to global variables | |
83 | * | |
84 | */ | |
d2066eb6 | 85 | static struct mutex u132_module_lock; |
b40f8d39 DW |
86 | static int u132_exiting; |
87 | static int u132_instances; | |
d774efea TO |
88 | static struct list_head u132_static_list; |
89 | /* | |
90 | * end of the global variables protected by u132_module_lock | |
91 | */ | |
92 | static struct workqueue_struct *workqueue; | |
93 | #define MAX_U132_PORTS 7 | |
94 | #define MAX_U132_ADDRS 128 | |
95 | #define MAX_U132_UDEVS 4 | |
96 | #define MAX_U132_ENDPS 100 | |
97 | #define MAX_U132_RINGS 4 | |
98 | static const char *cc_to_text[16] = { | |
b40f8d39 DW |
99 | "No Error ", |
100 | "CRC Error ", | |
101 | "Bit Stuff ", | |
102 | "Data Togg ", | |
103 | "Stall ", | |
104 | "DevNotResp ", | |
105 | "PIDCheck ", | |
106 | "UnExpPID ", | |
107 | "DataOver ", | |
108 | "DataUnder ", | |
109 | "(for hw) ", | |
110 | "(for hw) ", | |
111 | "BufferOver ", | |
112 | "BuffUnder ", | |
113 | "(for HCD) ", | |
114 | "(for HCD) " | |
d774efea TO |
115 | }; |
116 | struct u132_port { | |
b40f8d39 DW |
117 | struct u132 *u132; |
118 | int reset; | |
119 | int enable; | |
120 | int power; | |
121 | int Status; | |
d774efea TO |
122 | }; |
123 | struct u132_addr { | |
b40f8d39 | 124 | u8 address; |
d774efea TO |
125 | }; |
126 | struct u132_udev { | |
b40f8d39 DW |
127 | struct kref kref; |
128 | struct usb_device *usb_device; | |
129 | u8 enumeration; | |
130 | u8 udev_number; | |
131 | u8 usb_addr; | |
132 | u8 portnumber; | |
133 | u8 endp_number_in[16]; | |
134 | u8 endp_number_out[16]; | |
d774efea TO |
135 | }; |
136 | #define ENDP_QUEUE_SHIFT 3 | |
137 | #define ENDP_QUEUE_SIZE (1<<ENDP_QUEUE_SHIFT) | |
138 | #define ENDP_QUEUE_MASK (ENDP_QUEUE_SIZE-1) | |
139 | struct u132_urbq { | |
b40f8d39 DW |
140 | struct list_head urb_more; |
141 | struct urb *urb; | |
d774efea TO |
142 | }; |
143 | struct u132_spin { | |
b40f8d39 | 144 | spinlock_t slock; |
d774efea TO |
145 | }; |
146 | struct u132_endp { | |
b40f8d39 DW |
147 | struct kref kref; |
148 | u8 udev_number; | |
149 | u8 endp_number; | |
150 | u8 usb_addr; | |
151 | u8 usb_endp; | |
152 | struct u132 *u132; | |
153 | struct list_head endp_ring; | |
154 | struct u132_ring *ring; | |
155 | unsigned toggle_bits:2; | |
156 | unsigned active:1; | |
157 | unsigned delayed:1; | |
158 | unsigned input:1; | |
159 | unsigned output:1; | |
160 | unsigned pipetype:2; | |
161 | unsigned dequeueing:1; | |
162 | unsigned edset_flush:1; | |
163 | unsigned spare_bits:14; | |
164 | unsigned long jiffies; | |
165 | struct usb_host_endpoint *hep; | |
166 | struct u132_spin queue_lock; | |
167 | u16 queue_size; | |
168 | u16 queue_last; | |
169 | u16 queue_next; | |
170 | struct urb *urb_list[ENDP_QUEUE_SIZE]; | |
171 | struct list_head urb_more; | |
172 | struct delayed_work scheduler; | |
d774efea TO |
173 | }; |
174 | struct u132_ring { | |
b40f8d39 DW |
175 | unsigned in_use:1; |
176 | unsigned length:7; | |
177 | u8 number; | |
178 | struct u132 *u132; | |
179 | struct u132_endp *curr_endp; | |
180 | struct delayed_work scheduler; | |
d774efea | 181 | }; |
d774efea | 182 | struct u132 { |
b40f8d39 DW |
183 | struct kref kref; |
184 | struct list_head u132_list; | |
185 | struct mutex sw_lock; | |
50d8ca9b | 186 | struct mutex scheduler_lock; |
b40f8d39 DW |
187 | struct u132_platform_data *board; |
188 | struct platform_device *platform_dev; | |
189 | struct u132_ring ring[MAX_U132_RINGS]; | |
190 | int sequence_num; | |
191 | int going; | |
192 | int power; | |
193 | int reset; | |
194 | int num_ports; | |
195 | u32 hc_control; | |
196 | u32 hc_fminterval; | |
197 | u32 hc_roothub_status; | |
198 | u32 hc_roothub_a; | |
199 | u32 hc_roothub_portstatus[MAX_ROOT_PORTS]; | |
200 | int flags; | |
201 | unsigned long next_statechange; | |
202 | struct delayed_work monitor; | |
203 | int num_endpoints; | |
204 | struct u132_addr addr[MAX_U132_ADDRS]; | |
205 | struct u132_udev udev[MAX_U132_UDEVS]; | |
206 | struct u132_port port[MAX_U132_PORTS]; | |
207 | struct u132_endp *endp[MAX_U132_ENDPS]; | |
d774efea | 208 | }; |
9ce8540c | 209 | |
d774efea | 210 | /* |
0779bf2d | 211 | * these cannot be inlines because we need the structure offset!! |
d774efea TO |
212 | * Does anyone have a better way????? |
213 | */ | |
4b87361d | 214 | #define ftdi_read_pcimem(pdev, member, data) usb_ftdi_elan_read_pcimem(pdev, \ |
b40f8d39 | 215 | offsetof(struct ohci_regs, member), 0, data); |
4b87361d | 216 | #define ftdi_write_pcimem(pdev, member, data) usb_ftdi_elan_write_pcimem(pdev, \ |
b40f8d39 | 217 | offsetof(struct ohci_regs, member), 0, data); |
d774efea | 218 | #define u132_read_pcimem(u132, member, data) \ |
b40f8d39 DW |
219 | usb_ftdi_elan_read_pcimem(u132->platform_dev, offsetof(struct \ |
220 | ohci_regs, member), 0, data); | |
d774efea | 221 | #define u132_write_pcimem(u132, member, data) \ |
b40f8d39 DW |
222 | usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \ |
223 | ohci_regs, member), 0, data); | |
d774efea TO |
224 | static inline struct u132 *udev_to_u132(struct u132_udev *udev) |
225 | { | |
b40f8d39 DW |
226 | u8 udev_number = udev->udev_number; |
227 | return container_of(udev, struct u132, udev[udev_number]); | |
d774efea TO |
228 | } |
229 | ||
230 | static inline struct u132 *hcd_to_u132(struct usb_hcd *hcd) | |
231 | { | |
b40f8d39 | 232 | return (struct u132 *)(hcd->hcd_priv); |
d774efea TO |
233 | } |
234 | ||
235 | static inline struct usb_hcd *u132_to_hcd(struct u132 *u132) | |
236 | { | |
b40f8d39 | 237 | return container_of((void *)u132, struct usb_hcd, hcd_priv); |
d774efea TO |
238 | } |
239 | ||
240 | static inline void u132_disable(struct u132 *u132) | |
241 | { | |
b40f8d39 | 242 | u132_to_hcd(u132)->state = HC_STATE_HALT; |
d774efea TO |
243 | } |
244 | ||
245 | ||
246 | #define kref_to_u132(d) container_of(d, struct u132, kref) | |
247 | #define kref_to_u132_endp(d) container_of(d, struct u132_endp, kref) | |
248 | #define kref_to_u132_udev(d) container_of(d, struct u132_udev, kref) | |
249 | #include "../misc/usb_u132.h" | |
250 | static const char hcd_name[] = "u132_hcd"; | |
251 | #define PORT_C_MASK ((USB_PORT_STAT_C_CONNECTION | USB_PORT_STAT_C_ENABLE | \ | |
b40f8d39 DW |
252 | USB_PORT_STAT_C_SUSPEND | USB_PORT_STAT_C_OVERCURRENT | \ |
253 | USB_PORT_STAT_C_RESET) << 16) | |
d774efea TO |
254 | static void u132_hcd_delete(struct kref *kref) |
255 | { | |
b40f8d39 DW |
256 | struct u132 *u132 = kref_to_u132(kref); |
257 | struct platform_device *pdev = u132->platform_dev; | |
258 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
259 | u132->going += 1; | |
260 | mutex_lock(&u132_module_lock); | |
261 | list_del_init(&u132->u132_list); | |
262 | u132_instances -= 1; | |
263 | mutex_unlock(&u132_module_lock); | |
264 | dev_warn(&u132->platform_dev->dev, "FREEING the hcd=%p and thus the u13" | |
265 | "2=%p going=%d pdev=%p\n", hcd, u132, u132->going, pdev); | |
266 | usb_put_hcd(hcd); | |
d774efea TO |
267 | } |
268 | ||
269 | static inline void u132_u132_put_kref(struct u132 *u132) | |
270 | { | |
b40f8d39 | 271 | kref_put(&u132->kref, u132_hcd_delete); |
d774efea TO |
272 | } |
273 | ||
274 | static inline void u132_u132_init_kref(struct u132 *u132) | |
275 | { | |
b40f8d39 | 276 | kref_init(&u132->kref); |
d774efea TO |
277 | } |
278 | ||
279 | static void u132_udev_delete(struct kref *kref) | |
280 | { | |
b40f8d39 DW |
281 | struct u132_udev *udev = kref_to_u132_udev(kref); |
282 | udev->udev_number = 0; | |
283 | udev->usb_device = NULL; | |
284 | udev->usb_addr = 0; | |
285 | udev->enumeration = 0; | |
d774efea TO |
286 | } |
287 | ||
288 | static inline void u132_udev_put_kref(struct u132 *u132, struct u132_udev *udev) | |
289 | { | |
b40f8d39 | 290 | kref_put(&udev->kref, u132_udev_delete); |
d774efea TO |
291 | } |
292 | ||
293 | static inline void u132_udev_get_kref(struct u132 *u132, struct u132_udev *udev) | |
294 | { | |
b40f8d39 | 295 | kref_get(&udev->kref); |
d774efea TO |
296 | } |
297 | ||
298 | static inline void u132_udev_init_kref(struct u132 *u132, | |
b40f8d39 | 299 | struct u132_udev *udev) |
d774efea | 300 | { |
b40f8d39 | 301 | kref_init(&udev->kref); |
d774efea TO |
302 | } |
303 | ||
304 | static inline void u132_ring_put_kref(struct u132 *u132, struct u132_ring *ring) | |
305 | { | |
b40f8d39 | 306 | kref_put(&u132->kref, u132_hcd_delete); |
d774efea TO |
307 | } |
308 | ||
309 | static void u132_ring_requeue_work(struct u132 *u132, struct u132_ring *ring, | |
b40f8d39 | 310 | unsigned int delta) |
d774efea | 311 | { |
b40f8d39 DW |
312 | if (delta > 0) { |
313 | if (queue_delayed_work(workqueue, &ring->scheduler, delta)) | |
314 | return; | |
315 | } else if (queue_delayed_work(workqueue, &ring->scheduler, 0)) | |
316 | return; | |
317 | kref_put(&u132->kref, u132_hcd_delete); | |
d774efea TO |
318 | } |
319 | ||
320 | static void u132_ring_queue_work(struct u132 *u132, struct u132_ring *ring, | |
b40f8d39 | 321 | unsigned int delta) |
d774efea | 322 | { |
b40f8d39 DW |
323 | kref_get(&u132->kref); |
324 | u132_ring_requeue_work(u132, ring, delta); | |
d774efea TO |
325 | } |
326 | ||
327 | static void u132_ring_cancel_work(struct u132 *u132, struct u132_ring *ring) | |
328 | { | |
b40f8d39 DW |
329 | if (cancel_delayed_work(&ring->scheduler)) |
330 | kref_put(&u132->kref, u132_hcd_delete); | |
d774efea TO |
331 | } |
332 | ||
333 | static void u132_endp_delete(struct kref *kref) | |
334 | { | |
b40f8d39 DW |
335 | struct u132_endp *endp = kref_to_u132_endp(kref); |
336 | struct u132 *u132 = endp->u132; | |
337 | u8 usb_addr = endp->usb_addr; | |
338 | u8 usb_endp = endp->usb_endp; | |
339 | u8 address = u132->addr[usb_addr].address; | |
340 | struct u132_udev *udev = &u132->udev[address]; | |
341 | u8 endp_number = endp->endp_number; | |
342 | struct usb_host_endpoint *hep = endp->hep; | |
343 | struct u132_ring *ring = endp->ring; | |
344 | struct list_head *head = &endp->endp_ring; | |
345 | ring->length -= 1; | |
346 | if (endp == ring->curr_endp) { | |
347 | if (list_empty(head)) { | |
348 | ring->curr_endp = NULL; | |
349 | list_del(head); | |
350 | } else { | |
351 | struct u132_endp *next_endp = list_entry(head->next, | |
352 | struct u132_endp, endp_ring); | |
353 | ring->curr_endp = next_endp; | |
354 | list_del(head); | |
355 | } | |
356 | } else | |
357 | list_del(head); | |
358 | if (endp->input) { | |
359 | udev->endp_number_in[usb_endp] = 0; | |
360 | u132_udev_put_kref(u132, udev); | |
361 | } | |
362 | if (endp->output) { | |
363 | udev->endp_number_out[usb_endp] = 0; | |
364 | u132_udev_put_kref(u132, udev); | |
365 | } | |
366 | u132->endp[endp_number - 1] = NULL; | |
367 | hep->hcpriv = NULL; | |
368 | kfree(endp); | |
369 | u132_u132_put_kref(u132); | |
d774efea TO |
370 | } |
371 | ||
372 | static inline void u132_endp_put_kref(struct u132 *u132, struct u132_endp *endp) | |
373 | { | |
b40f8d39 | 374 | kref_put(&endp->kref, u132_endp_delete); |
d774efea TO |
375 | } |
376 | ||
377 | static inline void u132_endp_get_kref(struct u132 *u132, struct u132_endp *endp) | |
378 | { | |
b40f8d39 | 379 | kref_get(&endp->kref); |
d774efea TO |
380 | } |
381 | ||
382 | static inline void u132_endp_init_kref(struct u132 *u132, | |
b40f8d39 | 383 | struct u132_endp *endp) |
d774efea | 384 | { |
b40f8d39 DW |
385 | kref_init(&endp->kref); |
386 | kref_get(&u132->kref); | |
d774efea TO |
387 | } |
388 | ||
389 | static void u132_endp_queue_work(struct u132 *u132, struct u132_endp *endp, | |
b40f8d39 | 390 | unsigned int delta) |
d774efea | 391 | { |
c4028958 DH |
392 | if (queue_delayed_work(workqueue, &endp->scheduler, delta)) |
393 | kref_get(&endp->kref); | |
d774efea TO |
394 | } |
395 | ||
396 | static void u132_endp_cancel_work(struct u132 *u132, struct u132_endp *endp) | |
397 | { | |
b40f8d39 DW |
398 | if (cancel_delayed_work(&endp->scheduler)) |
399 | kref_put(&endp->kref, u132_endp_delete); | |
d774efea TO |
400 | } |
401 | ||
402 | static inline void u132_monitor_put_kref(struct u132 *u132) | |
403 | { | |
b40f8d39 | 404 | kref_put(&u132->kref, u132_hcd_delete); |
d774efea TO |
405 | } |
406 | ||
407 | static void u132_monitor_queue_work(struct u132 *u132, unsigned int delta) | |
408 | { | |
c4028958 DH |
409 | if (queue_delayed_work(workqueue, &u132->monitor, delta)) |
410 | kref_get(&u132->kref); | |
d774efea TO |
411 | } |
412 | ||
413 | static void u132_monitor_requeue_work(struct u132 *u132, unsigned int delta) | |
414 | { | |
c4028958 DH |
415 | if (!queue_delayed_work(workqueue, &u132->monitor, delta)) |
416 | kref_put(&u132->kref, u132_hcd_delete); | |
d774efea TO |
417 | } |
418 | ||
419 | static void u132_monitor_cancel_work(struct u132 *u132) | |
420 | { | |
b40f8d39 DW |
421 | if (cancel_delayed_work(&u132->monitor)) |
422 | kref_put(&u132->kref, u132_hcd_delete); | |
d774efea TO |
423 | } |
424 | ||
425 | static int read_roothub_info(struct u132 *u132) | |
426 | { | |
b40f8d39 DW |
427 | u32 revision; |
428 | int retval; | |
429 | retval = u132_read_pcimem(u132, revision, &revision); | |
430 | if (retval) { | |
431 | dev_err(&u132->platform_dev->dev, "error %d accessing device co" | |
432 | "ntrol\n", retval); | |
433 | return retval; | |
434 | } else if ((revision & 0xFF) == 0x10) { | |
435 | } else if ((revision & 0xFF) == 0x11) { | |
436 | } else { | |
437 | dev_err(&u132->platform_dev->dev, "device revision is not valid" | |
438 | " %08X\n", revision); | |
439 | return -ENODEV; | |
440 | } | |
441 | retval = u132_read_pcimem(u132, control, &u132->hc_control); | |
442 | if (retval) { | |
443 | dev_err(&u132->platform_dev->dev, "error %d accessing device co" | |
444 | "ntrol\n", retval); | |
445 | return retval; | |
446 | } | |
447 | retval = u132_read_pcimem(u132, roothub.status, | |
448 | &u132->hc_roothub_status); | |
449 | if (retval) { | |
450 | dev_err(&u132->platform_dev->dev, "error %d accessing device re" | |
451 | "g roothub.status\n", retval); | |
452 | return retval; | |
453 | } | |
454 | retval = u132_read_pcimem(u132, roothub.a, &u132->hc_roothub_a); | |
455 | if (retval) { | |
456 | dev_err(&u132->platform_dev->dev, "error %d accessing device re" | |
457 | "g roothub.a\n", retval); | |
458 | return retval; | |
459 | } | |
460 | { | |
461 | int I = u132->num_ports; | |
462 | int i = 0; | |
463 | while (I-- > 0) { | |
464 | retval = u132_read_pcimem(u132, roothub.portstatus[i], | |
465 | &u132->hc_roothub_portstatus[i]); | |
466 | if (retval) { | |
467 | dev_err(&u132->platform_dev->dev, "error %d acc" | |
468 | "essing device roothub.portstatus[%d]\n" | |
469 | , retval, i); | |
470 | return retval; | |
471 | } else | |
472 | i += 1; | |
473 | } | |
474 | } | |
475 | return 0; | |
d774efea TO |
476 | } |
477 | ||
c4028958 | 478 | static void u132_hcd_monitor_work(struct work_struct *work) |
d774efea | 479 | { |
b40f8d39 DW |
480 | struct u132 *u132 = container_of(work, struct u132, monitor.work); |
481 | if (u132->going > 1) { | |
482 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
483 | , u132->going); | |
484 | u132_monitor_put_kref(u132); | |
485 | return; | |
486 | } else if (u132->going > 0) { | |
487 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
488 | u132_monitor_put_kref(u132); | |
489 | return; | |
490 | } else { | |
491 | int retval; | |
492 | mutex_lock(&u132->sw_lock); | |
493 | retval = read_roothub_info(u132); | |
494 | if (retval) { | |
495 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
496 | u132_disable(u132); | |
497 | u132->going = 1; | |
498 | mutex_unlock(&u132->sw_lock); | |
499 | usb_hc_died(hcd); | |
500 | ftdi_elan_gone_away(u132->platform_dev); | |
501 | u132_monitor_put_kref(u132); | |
502 | return; | |
503 | } else { | |
504 | u132_monitor_requeue_work(u132, 500); | |
505 | mutex_unlock(&u132->sw_lock); | |
506 | return; | |
507 | } | |
508 | } | |
d774efea TO |
509 | } |
510 | ||
511 | static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp, | |
b40f8d39 | 512 | struct urb *urb, int status) |
d774efea | 513 | { |
b40f8d39 DW |
514 | struct u132_ring *ring; |
515 | unsigned long irqs; | |
516 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
517 | urb->error_count = 0; | |
518 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
e9df41c5 | 519 | usb_hcd_unlink_urb_from_ep(hcd, urb); |
b40f8d39 DW |
520 | endp->queue_next += 1; |
521 | if (ENDP_QUEUE_SIZE > --endp->queue_size) { | |
522 | endp->active = 0; | |
523 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
524 | } else { | |
525 | struct list_head *next = endp->urb_more.next; | |
526 | struct u132_urbq *urbq = list_entry(next, struct u132_urbq, | |
527 | urb_more); | |
528 | list_del(next); | |
529 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = | |
530 | urbq->urb; | |
531 | endp->active = 0; | |
532 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
533 | kfree(urbq); | |
534 | } | |
50d8ca9b | 535 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
536 | ring = endp->ring; |
537 | ring->in_use = 0; | |
538 | u132_ring_cancel_work(u132, ring); | |
539 | u132_ring_queue_work(u132, ring, 0); | |
50d8ca9b | 540 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 | 541 | u132_endp_put_kref(u132, endp); |
4a00027d | 542 | usb_hcd_giveback_urb(hcd, urb, status); |
d774efea TO |
543 | } |
544 | ||
545 | static void u132_hcd_forget_urb(struct u132 *u132, struct u132_endp *endp, | |
b40f8d39 | 546 | struct urb *urb, int status) |
d774efea | 547 | { |
b40f8d39 | 548 | u132_endp_put_kref(u132, endp); |
d774efea TO |
549 | } |
550 | ||
551 | static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp, | |
b40f8d39 | 552 | struct urb *urb, int status) |
d774efea | 553 | { |
b40f8d39 DW |
554 | unsigned long irqs; |
555 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
556 | urb->error_count = 0; | |
557 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
e9df41c5 | 558 | usb_hcd_unlink_urb_from_ep(hcd, urb); |
b40f8d39 DW |
559 | endp->queue_next += 1; |
560 | if (ENDP_QUEUE_SIZE > --endp->queue_size) { | |
561 | endp->active = 0; | |
562 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
563 | } else { | |
564 | struct list_head *next = endp->urb_more.next; | |
565 | struct u132_urbq *urbq = list_entry(next, struct u132_urbq, | |
566 | urb_more); | |
567 | list_del(next); | |
568 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = | |
569 | urbq->urb; | |
570 | endp->active = 0; | |
571 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
572 | kfree(urbq); | |
7f26b3a7 JP |
573 | } |
574 | usb_hcd_giveback_urb(hcd, urb, status); | |
d774efea TO |
575 | } |
576 | ||
577 | static inline int edset_input(struct u132 *u132, struct u132_ring *ring, | |
b40f8d39 DW |
578 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
579 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, | |
580 | int toggle_bits, int error_count, int condition_code, int repeat_number, | |
581 | int halted, int skipped, int actual, int non_null)) | |
d774efea | 582 | { |
b40f8d39 DW |
583 | return usb_ftdi_elan_edset_input(u132->platform_dev, ring->number, endp, |
584 | urb, address, endp->usb_endp, toggle_bits, callback); | |
d774efea TO |
585 | } |
586 | ||
587 | static inline int edset_setup(struct u132 *u132, struct u132_ring *ring, | |
b40f8d39 DW |
588 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
589 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, | |
590 | int toggle_bits, int error_count, int condition_code, int repeat_number, | |
591 | int halted, int skipped, int actual, int non_null)) | |
d774efea | 592 | { |
b40f8d39 DW |
593 | return usb_ftdi_elan_edset_setup(u132->platform_dev, ring->number, endp, |
594 | urb, address, endp->usb_endp, toggle_bits, callback); | |
d774efea TO |
595 | } |
596 | ||
597 | static inline int edset_single(struct u132 *u132, struct u132_ring *ring, | |
b40f8d39 DW |
598 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
599 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, | |
600 | int toggle_bits, int error_count, int condition_code, int repeat_number, | |
601 | int halted, int skipped, int actual, int non_null)) | |
d774efea | 602 | { |
b40f8d39 DW |
603 | return usb_ftdi_elan_edset_single(u132->platform_dev, ring->number, |
604 | endp, urb, address, endp->usb_endp, toggle_bits, callback); | |
d774efea TO |
605 | } |
606 | ||
607 | static inline int edset_output(struct u132 *u132, struct u132_ring *ring, | |
b40f8d39 DW |
608 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
609 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, | |
610 | int toggle_bits, int error_count, int condition_code, int repeat_number, | |
611 | int halted, int skipped, int actual, int non_null)) | |
d774efea | 612 | { |
b40f8d39 DW |
613 | return usb_ftdi_elan_edset_output(u132->platform_dev, ring->number, |
614 | endp, urb, address, endp->usb_endp, toggle_bits, callback); | |
d774efea TO |
615 | } |
616 | ||
617 | ||
618 | /* | |
619 | * must not LOCK sw_lock | |
620 | * | |
621 | */ | |
622 | static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
623 | int len, int toggle_bits, int error_count, int condition_code, |
624 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
625 | { | |
626 | struct u132_endp *endp = data; | |
627 | struct u132 *u132 = endp->u132; | |
628 | u8 address = u132->addr[endp->usb_addr].address; | |
629 | struct u132_udev *udev = &u132->udev[address]; | |
50d8ca9b | 630 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
631 | if (u132->going > 1) { |
632 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
633 | , u132->going); | |
50d8ca9b | 634 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
635 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
636 | return; | |
637 | } else if (endp->dequeueing) { | |
638 | endp->dequeueing = 0; | |
50d8ca9b | 639 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
640 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
641 | return; | |
642 | } else if (u132->going > 0) { | |
eb231054 AS |
643 | dev_err(&u132->platform_dev->dev, "device is being removed " |
644 | "urb=%p\n", urb); | |
50d8ca9b | 645 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
646 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
647 | return; | |
eb231054 | 648 | } else if (!urb->unlinked) { |
b40f8d39 DW |
649 | struct u132_ring *ring = endp->ring; |
650 | u8 *u = urb->transfer_buffer + urb->actual_length; | |
651 | u8 *b = buf; | |
652 | int L = len; | |
653 | ||
654 | while (L-- > 0) | |
655 | *u++ = *b++; | |
656 | ||
657 | urb->actual_length += len; | |
658 | if ((condition_code == TD_CC_NOERROR) && | |
659 | (urb->transfer_buffer_length > urb->actual_length)) { | |
660 | endp->toggle_bits = toggle_bits; | |
661 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
662 | 1 & toggle_bits); | |
663 | if (urb->actual_length > 0) { | |
664 | int retval; | |
50d8ca9b | 665 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
666 | retval = edset_single(u132, ring, endp, urb, |
667 | address, endp->toggle_bits, | |
668 | u132_hcd_interrupt_recv); | |
669 | if (retval != 0) | |
670 | u132_hcd_giveback_urb(u132, endp, urb, | |
671 | retval); | |
672 | } else { | |
673 | ring->in_use = 0; | |
674 | endp->active = 0; | |
675 | endp->jiffies = jiffies + | |
676 | msecs_to_jiffies(urb->interval); | |
677 | u132_ring_cancel_work(u132, ring); | |
678 | u132_ring_queue_work(u132, ring, 0); | |
50d8ca9b | 679 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
680 | u132_endp_put_kref(u132, endp); |
681 | } | |
682 | return; | |
683 | } else if ((condition_code == TD_DATAUNDERRUN) && | |
684 | ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) { | |
685 | endp->toggle_bits = toggle_bits; | |
686 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
687 | 1 & toggle_bits); | |
50d8ca9b | 688 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
689 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
690 | return; | |
691 | } else { | |
692 | if (condition_code == TD_CC_NOERROR) { | |
693 | endp->toggle_bits = toggle_bits; | |
694 | usb_settoggle(udev->usb_device, endp->usb_endp, | |
695 | 0, 1 & toggle_bits); | |
696 | } else if (condition_code == TD_CC_STALL) { | |
697 | endp->toggle_bits = 0x2; | |
698 | usb_settoggle(udev->usb_device, endp->usb_endp, | |
699 | 0, 0); | |
700 | } else { | |
701 | endp->toggle_bits = 0x2; | |
702 | usb_settoggle(udev->usb_device, endp->usb_endp, | |
703 | 0, 0); | |
704 | dev_err(&u132->platform_dev->dev, "urb=%p givin" | |
705 | "g back INTERRUPT %s\n", urb, | |
706 | cc_to_text[condition_code]); | |
707 | } | |
50d8ca9b | 708 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
709 | u132_hcd_giveback_urb(u132, endp, urb, |
710 | cc_to_error[condition_code]); | |
711 | return; | |
712 | } | |
713 | } else { | |
eb231054 AS |
714 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
715 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 716 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 717 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
718 | return; |
719 | } | |
d774efea TO |
720 | } |
721 | ||
722 | static void u132_hcd_bulk_output_sent(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
723 | int len, int toggle_bits, int error_count, int condition_code, |
724 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
725 | { | |
726 | struct u132_endp *endp = data; | |
727 | struct u132 *u132 = endp->u132; | |
728 | u8 address = u132->addr[endp->usb_addr].address; | |
50d8ca9b | 729 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
730 | if (u132->going > 1) { |
731 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
732 | , u132->going); | |
50d8ca9b | 733 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
734 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
735 | return; | |
736 | } else if (endp->dequeueing) { | |
737 | endp->dequeueing = 0; | |
50d8ca9b | 738 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
739 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
740 | return; | |
741 | } else if (u132->going > 0) { | |
eb231054 AS |
742 | dev_err(&u132->platform_dev->dev, "device is being removed " |
743 | "urb=%p\n", urb); | |
50d8ca9b | 744 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
745 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
746 | return; | |
eb231054 | 747 | } else if (!urb->unlinked) { |
b40f8d39 DW |
748 | struct u132_ring *ring = endp->ring; |
749 | urb->actual_length += len; | |
750 | endp->toggle_bits = toggle_bits; | |
751 | if (urb->transfer_buffer_length > urb->actual_length) { | |
752 | int retval; | |
50d8ca9b | 753 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
754 | retval = edset_output(u132, ring, endp, urb, address, |
755 | endp->toggle_bits, u132_hcd_bulk_output_sent); | |
756 | if (retval != 0) | |
757 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
758 | return; | |
759 | } else { | |
50d8ca9b | 760 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
761 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
762 | return; | |
763 | } | |
764 | } else { | |
eb231054 AS |
765 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
766 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 767 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 768 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
769 | return; |
770 | } | |
d774efea TO |
771 | } |
772 | ||
773 | static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
774 | int len, int toggle_bits, int error_count, int condition_code, |
775 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
776 | { | |
777 | struct u132_endp *endp = data; | |
778 | struct u132 *u132 = endp->u132; | |
779 | u8 address = u132->addr[endp->usb_addr].address; | |
780 | struct u132_udev *udev = &u132->udev[address]; | |
50d8ca9b | 781 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
782 | if (u132->going > 1) { |
783 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
784 | , u132->going); | |
50d8ca9b | 785 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
786 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
787 | return; | |
788 | } else if (endp->dequeueing) { | |
789 | endp->dequeueing = 0; | |
50d8ca9b | 790 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
791 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
792 | return; | |
793 | } else if (u132->going > 0) { | |
eb231054 AS |
794 | dev_err(&u132->platform_dev->dev, "device is being removed " |
795 | "urb=%p\n", urb); | |
50d8ca9b | 796 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
797 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
798 | return; | |
eb231054 | 799 | } else if (!urb->unlinked) { |
b40f8d39 DW |
800 | struct u132_ring *ring = endp->ring; |
801 | u8 *u = urb->transfer_buffer + urb->actual_length; | |
802 | u8 *b = buf; | |
803 | int L = len; | |
804 | ||
805 | while (L-- > 0) | |
806 | *u++ = *b++; | |
807 | ||
808 | urb->actual_length += len; | |
809 | if ((condition_code == TD_CC_NOERROR) && | |
810 | (urb->transfer_buffer_length > urb->actual_length)) { | |
811 | int retval; | |
812 | endp->toggle_bits = toggle_bits; | |
813 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
814 | 1 & toggle_bits); | |
50d8ca9b | 815 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
816 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
817 | ring->number, endp, urb, address, | |
818 | endp->usb_endp, endp->toggle_bits, | |
819 | u132_hcd_bulk_input_recv); | |
820 | if (retval != 0) | |
821 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
822 | return; | |
823 | } else if (condition_code == TD_CC_NOERROR) { | |
824 | endp->toggle_bits = toggle_bits; | |
825 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
826 | 1 & toggle_bits); | |
50d8ca9b | 827 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
828 | u132_hcd_giveback_urb(u132, endp, urb, |
829 | cc_to_error[condition_code]); | |
830 | return; | |
831 | } else if ((condition_code == TD_DATAUNDERRUN) && | |
832 | ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) { | |
833 | endp->toggle_bits = toggle_bits; | |
834 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
835 | 1 & toggle_bits); | |
50d8ca9b | 836 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
837 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
838 | return; | |
839 | } else if (condition_code == TD_DATAUNDERRUN) { | |
840 | endp->toggle_bits = toggle_bits; | |
841 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
842 | 1 & toggle_bits); | |
843 | dev_warn(&u132->platform_dev->dev, "urb=%p(SHORT NOT OK" | |
844 | ") giving back BULK IN %s\n", urb, | |
845 | cc_to_text[condition_code]); | |
50d8ca9b | 846 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
847 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
848 | return; | |
849 | } else if (condition_code == TD_CC_STALL) { | |
850 | endp->toggle_bits = 0x2; | |
851 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0); | |
50d8ca9b | 852 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
853 | u132_hcd_giveback_urb(u132, endp, urb, |
854 | cc_to_error[condition_code]); | |
855 | return; | |
856 | } else { | |
857 | endp->toggle_bits = 0x2; | |
858 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0); | |
859 | dev_err(&u132->platform_dev->dev, "urb=%p giving back B" | |
860 | "ULK IN code=%d %s\n", urb, condition_code, | |
861 | cc_to_text[condition_code]); | |
50d8ca9b | 862 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
863 | u132_hcd_giveback_urb(u132, endp, urb, |
864 | cc_to_error[condition_code]); | |
865 | return; | |
866 | } | |
867 | } else { | |
eb231054 AS |
868 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
869 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 870 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 871 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
872 | return; |
873 | } | |
d774efea TO |
874 | } |
875 | ||
876 | static void u132_hcd_configure_empty_sent(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
877 | int len, int toggle_bits, int error_count, int condition_code, |
878 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
879 | { | |
880 | struct u132_endp *endp = data; | |
881 | struct u132 *u132 = endp->u132; | |
50d8ca9b | 882 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
883 | if (u132->going > 1) { |
884 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
885 | , u132->going); | |
50d8ca9b | 886 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
887 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
888 | return; | |
889 | } else if (endp->dequeueing) { | |
890 | endp->dequeueing = 0; | |
50d8ca9b | 891 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
892 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
893 | return; | |
894 | } else if (u132->going > 0) { | |
eb231054 AS |
895 | dev_err(&u132->platform_dev->dev, "device is being removed " |
896 | "urb=%p\n", urb); | |
50d8ca9b | 897 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
898 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
899 | return; | |
eb231054 | 900 | } else if (!urb->unlinked) { |
50d8ca9b | 901 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
902 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
903 | return; | |
904 | } else { | |
eb231054 AS |
905 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
906 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 907 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 908 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
909 | return; |
910 | } | |
d774efea TO |
911 | } |
912 | ||
913 | static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
914 | int len, int toggle_bits, int error_count, int condition_code, |
915 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
916 | { | |
917 | struct u132_endp *endp = data; | |
918 | struct u132 *u132 = endp->u132; | |
919 | u8 address = u132->addr[endp->usb_addr].address; | |
50d8ca9b | 920 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
921 | if (u132->going > 1) { |
922 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
923 | , u132->going); | |
50d8ca9b | 924 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
925 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
926 | return; | |
927 | } else if (endp->dequeueing) { | |
928 | endp->dequeueing = 0; | |
50d8ca9b | 929 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
930 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
931 | return; | |
932 | } else if (u132->going > 0) { | |
eb231054 AS |
933 | dev_err(&u132->platform_dev->dev, "device is being removed " |
934 | "urb=%p\n", urb); | |
50d8ca9b | 935 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
936 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
937 | return; | |
eb231054 | 938 | } else if (!urb->unlinked) { |
b40f8d39 DW |
939 | struct u132_ring *ring = endp->ring; |
940 | u8 *u = urb->transfer_buffer; | |
941 | u8 *b = buf; | |
942 | int L = len; | |
943 | ||
944 | while (L-- > 0) | |
945 | *u++ = *b++; | |
946 | ||
947 | urb->actual_length = len; | |
948 | if ((condition_code == TD_CC_NOERROR) || ((condition_code == | |
949 | TD_DATAUNDERRUN) && ((urb->transfer_flags & | |
950 | URB_SHORT_NOT_OK) == 0))) { | |
951 | int retval; | |
50d8ca9b | 952 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
953 | retval = usb_ftdi_elan_edset_empty(u132->platform_dev, |
954 | ring->number, endp, urb, address, | |
955 | endp->usb_endp, 0x3, | |
956 | u132_hcd_configure_empty_sent); | |
957 | if (retval != 0) | |
958 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
959 | return; | |
960 | } else if (condition_code == TD_CC_STALL) { | |
50d8ca9b | 961 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
962 | dev_warn(&u132->platform_dev->dev, "giving back SETUP I" |
963 | "NPUT STALL urb %p\n", urb); | |
964 | u132_hcd_giveback_urb(u132, endp, urb, | |
965 | cc_to_error[condition_code]); | |
966 | return; | |
967 | } else { | |
50d8ca9b | 968 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
969 | dev_err(&u132->platform_dev->dev, "giving back SETUP IN" |
970 | "PUT %s urb %p\n", cc_to_text[condition_code], | |
971 | urb); | |
972 | u132_hcd_giveback_urb(u132, endp, urb, | |
973 | cc_to_error[condition_code]); | |
974 | return; | |
975 | } | |
976 | } else { | |
eb231054 AS |
977 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
978 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 979 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 980 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
981 | return; |
982 | } | |
d774efea TO |
983 | } |
984 | ||
985 | static void u132_hcd_configure_empty_recv(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
986 | int len, int toggle_bits, int error_count, int condition_code, |
987 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
988 | { | |
989 | struct u132_endp *endp = data; | |
990 | struct u132 *u132 = endp->u132; | |
50d8ca9b | 991 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
992 | if (u132->going > 1) { |
993 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
994 | , u132->going); | |
50d8ca9b | 995 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
996 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
997 | return; | |
998 | } else if (endp->dequeueing) { | |
999 | endp->dequeueing = 0; | |
50d8ca9b | 1000 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1001 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1002 | return; | |
1003 | } else if (u132->going > 0) { | |
eb231054 AS |
1004 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1005 | "urb=%p\n", urb); | |
50d8ca9b | 1006 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1007 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1008 | return; | |
eb231054 | 1009 | } else if (!urb->unlinked) { |
50d8ca9b | 1010 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1011 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
1012 | return; | |
1013 | } else { | |
eb231054 AS |
1014 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1015 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1016 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1017 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1018 | return; |
1019 | } | |
d774efea TO |
1020 | } |
1021 | ||
1022 | static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
1023 | int len, int toggle_bits, int error_count, int condition_code, |
1024 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1025 | { | |
1026 | struct u132_endp *endp = data; | |
1027 | struct u132 *u132 = endp->u132; | |
1028 | u8 address = u132->addr[endp->usb_addr].address; | |
50d8ca9b | 1029 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1030 | if (u132->going > 1) { |
1031 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1032 | , u132->going); | |
50d8ca9b | 1033 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1034 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1035 | return; | |
1036 | } else if (endp->dequeueing) { | |
1037 | endp->dequeueing = 0; | |
50d8ca9b | 1038 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1039 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1040 | return; | |
1041 | } else if (u132->going > 0) { | |
eb231054 AS |
1042 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1043 | "urb=%p\n", urb); | |
50d8ca9b | 1044 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1045 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1046 | return; | |
eb231054 | 1047 | } else if (!urb->unlinked) { |
b40f8d39 DW |
1048 | if (usb_pipein(urb->pipe)) { |
1049 | int retval; | |
1050 | struct u132_ring *ring = endp->ring; | |
50d8ca9b | 1051 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1052 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
1053 | ring->number, endp, urb, address, | |
1054 | endp->usb_endp, 0, | |
1055 | u132_hcd_configure_input_recv); | |
1056 | if (retval != 0) | |
1057 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1058 | return; | |
1059 | } else { | |
1060 | int retval; | |
1061 | struct u132_ring *ring = endp->ring; | |
50d8ca9b | 1062 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1063 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
1064 | ring->number, endp, urb, address, | |
1065 | endp->usb_endp, 0, | |
1066 | u132_hcd_configure_empty_recv); | |
1067 | if (retval != 0) | |
1068 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1069 | return; | |
1070 | } | |
1071 | } else { | |
eb231054 AS |
1072 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1073 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1074 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1075 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1076 | return; |
1077 | } | |
d774efea TO |
1078 | } |
1079 | ||
1080 | static void u132_hcd_enumeration_empty_recv(void *data, struct urb *urb, | |
b40f8d39 DW |
1081 | u8 *buf, int len, int toggle_bits, int error_count, int condition_code, |
1082 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1083 | { | |
1084 | struct u132_endp *endp = data; | |
1085 | struct u132 *u132 = endp->u132; | |
1086 | u8 address = u132->addr[endp->usb_addr].address; | |
1087 | struct u132_udev *udev = &u132->udev[address]; | |
50d8ca9b | 1088 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1089 | if (u132->going > 1) { |
1090 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1091 | , u132->going); | |
50d8ca9b | 1092 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1093 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1094 | return; | |
1095 | } else if (endp->dequeueing) { | |
1096 | endp->dequeueing = 0; | |
50d8ca9b | 1097 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1098 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1099 | return; | |
1100 | } else if (u132->going > 0) { | |
eb231054 AS |
1101 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1102 | "urb=%p\n", urb); | |
50d8ca9b | 1103 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1104 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1105 | return; | |
eb231054 | 1106 | } else if (!urb->unlinked) { |
b40f8d39 DW |
1107 | u132->addr[0].address = 0; |
1108 | endp->usb_addr = udev->usb_addr; | |
50d8ca9b | 1109 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1110 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
1111 | return; | |
1112 | } else { | |
eb231054 AS |
1113 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1114 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1115 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1116 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1117 | return; |
1118 | } | |
d774efea TO |
1119 | } |
1120 | ||
1121 | static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb, | |
b40f8d39 DW |
1122 | u8 *buf, int len, int toggle_bits, int error_count, int condition_code, |
1123 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1124 | { | |
1125 | struct u132_endp *endp = data; | |
1126 | struct u132 *u132 = endp->u132; | |
50d8ca9b | 1127 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1128 | if (u132->going > 1) { |
1129 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1130 | , u132->going); | |
50d8ca9b | 1131 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1132 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1133 | return; | |
1134 | } else if (endp->dequeueing) { | |
1135 | endp->dequeueing = 0; | |
50d8ca9b | 1136 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1137 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1138 | return; | |
1139 | } else if (u132->going > 0) { | |
eb231054 AS |
1140 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1141 | "urb=%p\n", urb); | |
50d8ca9b | 1142 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1143 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1144 | return; | |
eb231054 | 1145 | } else if (!urb->unlinked) { |
b40f8d39 DW |
1146 | int retval; |
1147 | struct u132_ring *ring = endp->ring; | |
50d8ca9b | 1148 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1149 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
1150 | ring->number, endp, urb, 0, endp->usb_endp, 0, | |
1151 | u132_hcd_enumeration_empty_recv); | |
1152 | if (retval != 0) | |
1153 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1154 | return; | |
1155 | } else { | |
eb231054 AS |
1156 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1157 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1158 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1159 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1160 | return; |
1161 | } | |
d774efea TO |
1162 | } |
1163 | ||
1164 | static void u132_hcd_initial_empty_sent(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
1165 | int len, int toggle_bits, int error_count, int condition_code, |
1166 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1167 | { | |
1168 | struct u132_endp *endp = data; | |
1169 | struct u132 *u132 = endp->u132; | |
50d8ca9b | 1170 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1171 | if (u132->going > 1) { |
1172 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1173 | , u132->going); | |
50d8ca9b | 1174 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1175 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1176 | return; | |
1177 | } else if (endp->dequeueing) { | |
1178 | endp->dequeueing = 0; | |
50d8ca9b | 1179 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1180 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1181 | return; | |
1182 | } else if (u132->going > 0) { | |
eb231054 AS |
1183 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1184 | "urb=%p\n", urb); | |
50d8ca9b | 1185 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1186 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1187 | return; | |
eb231054 | 1188 | } else if (!urb->unlinked) { |
50d8ca9b | 1189 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1190 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
1191 | return; | |
1192 | } else { | |
eb231054 AS |
1193 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1194 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1195 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1196 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1197 | return; |
1198 | } | |
d774efea TO |
1199 | } |
1200 | ||
1201 | static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
1202 | int len, int toggle_bits, int error_count, int condition_code, |
1203 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1204 | { | |
1205 | struct u132_endp *endp = data; | |
1206 | struct u132 *u132 = endp->u132; | |
1207 | u8 address = u132->addr[endp->usb_addr].address; | |
50d8ca9b | 1208 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1209 | if (u132->going > 1) { |
1210 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1211 | , u132->going); | |
50d8ca9b | 1212 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1213 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1214 | return; | |
1215 | } else if (endp->dequeueing) { | |
1216 | endp->dequeueing = 0; | |
50d8ca9b | 1217 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1218 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1219 | return; | |
1220 | } else if (u132->going > 0) { | |
eb231054 AS |
1221 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1222 | "urb=%p\n", urb); | |
50d8ca9b | 1223 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1224 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1225 | return; | |
eb231054 | 1226 | } else if (!urb->unlinked) { |
b40f8d39 DW |
1227 | int retval; |
1228 | struct u132_ring *ring = endp->ring; | |
1229 | u8 *u = urb->transfer_buffer; | |
1230 | u8 *b = buf; | |
1231 | int L = len; | |
1232 | ||
1233 | while (L-- > 0) | |
1234 | *u++ = *b++; | |
1235 | ||
1236 | urb->actual_length = len; | |
50d8ca9b | 1237 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1238 | retval = usb_ftdi_elan_edset_empty(u132->platform_dev, |
1239 | ring->number, endp, urb, address, endp->usb_endp, 0x3, | |
1240 | u132_hcd_initial_empty_sent); | |
1241 | if (retval != 0) | |
1242 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1243 | return; | |
1244 | } else { | |
eb231054 AS |
1245 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1246 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1247 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1248 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1249 | return; |
1250 | } | |
d774efea TO |
1251 | } |
1252 | ||
1253 | static void u132_hcd_initial_setup_sent(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
1254 | int len, int toggle_bits, int error_count, int condition_code, |
1255 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1256 | { | |
1257 | struct u132_endp *endp = data; | |
1258 | struct u132 *u132 = endp->u132; | |
1259 | u8 address = u132->addr[endp->usb_addr].address; | |
50d8ca9b | 1260 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1261 | if (u132->going > 1) { |
1262 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1263 | , u132->going); | |
50d8ca9b | 1264 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1265 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1266 | return; | |
1267 | } else if (endp->dequeueing) { | |
1268 | endp->dequeueing = 0; | |
50d8ca9b | 1269 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1270 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1271 | return; | |
1272 | } else if (u132->going > 0) { | |
eb231054 AS |
1273 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1274 | "urb=%p\n", urb); | |
50d8ca9b | 1275 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1276 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1277 | return; | |
eb231054 | 1278 | } else if (!urb->unlinked) { |
b40f8d39 DW |
1279 | int retval; |
1280 | struct u132_ring *ring = endp->ring; | |
50d8ca9b | 1281 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1282 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
1283 | ring->number, endp, urb, address, endp->usb_endp, 0, | |
1284 | u132_hcd_initial_input_recv); | |
1285 | if (retval != 0) | |
1286 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1287 | return; | |
1288 | } else { | |
eb231054 AS |
1289 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1290 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1291 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1292 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1293 | return; |
1294 | } | |
d774efea TO |
1295 | } |
1296 | ||
d774efea TO |
1297 | /* |
1298 | * this work function is only executed from the work queue | |
1299 | * | |
1300 | */ | |
c4028958 | 1301 | static void u132_hcd_ring_work_scheduler(struct work_struct *work) |
d774efea | 1302 | { |
b40f8d39 | 1303 | struct u132_ring *ring = |
c4028958 | 1304 | container_of(work, struct u132_ring, scheduler.work); |
b40f8d39 | 1305 | struct u132 *u132 = ring->u132; |
50d8ca9b | 1306 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 | 1307 | if (ring->in_use) { |
50d8ca9b | 1308 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1309 | u132_ring_put_kref(u132, ring); |
1310 | return; | |
1311 | } else if (ring->curr_endp) { | |
4e5d7a82 | 1312 | struct u132_endp *endp, *last_endp = ring->curr_endp; |
b40f8d39 | 1313 | unsigned long wakeup = 0; |
4e5d7a82 | 1314 | list_for_each_entry(endp, &last_endp->endp_ring, endp_ring) { |
b40f8d39 DW |
1315 | if (endp->queue_next == endp->queue_last) { |
1316 | } else if ((endp->delayed == 0) | |
1317 | || time_after_eq(jiffies, endp->jiffies)) { | |
1318 | ring->curr_endp = endp; | |
1319 | u132_endp_cancel_work(u132, last_endp); | |
1320 | u132_endp_queue_work(u132, last_endp, 0); | |
50d8ca9b | 1321 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1322 | u132_ring_put_kref(u132, ring); |
1323 | return; | |
1324 | } else { | |
1325 | unsigned long delta = endp->jiffies - jiffies; | |
1326 | if (delta > wakeup) | |
1327 | wakeup = delta; | |
1328 | } | |
1329 | } | |
1330 | if (last_endp->queue_next == last_endp->queue_last) { | |
1331 | } else if ((last_endp->delayed == 0) || time_after_eq(jiffies, | |
1332 | last_endp->jiffies)) { | |
1333 | u132_endp_cancel_work(u132, last_endp); | |
1334 | u132_endp_queue_work(u132, last_endp, 0); | |
50d8ca9b | 1335 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1336 | u132_ring_put_kref(u132, ring); |
1337 | return; | |
1338 | } else { | |
1339 | unsigned long delta = last_endp->jiffies - jiffies; | |
1340 | if (delta > wakeup) | |
1341 | wakeup = delta; | |
1342 | } | |
1343 | if (wakeup > 0) { | |
1344 | u132_ring_requeue_work(u132, ring, wakeup); | |
50d8ca9b | 1345 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1346 | return; |
1347 | } else { | |
50d8ca9b | 1348 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1349 | u132_ring_put_kref(u132, ring); |
1350 | return; | |
1351 | } | |
1352 | } else { | |
50d8ca9b | 1353 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1354 | u132_ring_put_kref(u132, ring); |
1355 | return; | |
1356 | } | |
d774efea TO |
1357 | } |
1358 | ||
c4028958 | 1359 | static void u132_hcd_endp_work_scheduler(struct work_struct *work) |
d774efea | 1360 | { |
b40f8d39 DW |
1361 | struct u132_ring *ring; |
1362 | struct u132_endp *endp = | |
c4028958 | 1363 | container_of(work, struct u132_endp, scheduler.work); |
b40f8d39 | 1364 | struct u132 *u132 = endp->u132; |
50d8ca9b | 1365 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1366 | ring = endp->ring; |
1367 | if (endp->edset_flush) { | |
1368 | endp->edset_flush = 0; | |
1369 | if (endp->dequeueing) | |
1370 | usb_ftdi_elan_edset_flush(u132->platform_dev, | |
1371 | ring->number, endp); | |
50d8ca9b | 1372 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1373 | u132_endp_put_kref(u132, endp); |
1374 | return; | |
1375 | } else if (endp->active) { | |
50d8ca9b | 1376 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1377 | u132_endp_put_kref(u132, endp); |
1378 | return; | |
1379 | } else if (ring->in_use) { | |
50d8ca9b | 1380 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1381 | u132_endp_put_kref(u132, endp); |
1382 | return; | |
1383 | } else if (endp->queue_next == endp->queue_last) { | |
50d8ca9b | 1384 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1385 | u132_endp_put_kref(u132, endp); |
1386 | return; | |
1387 | } else if (endp->pipetype == PIPE_INTERRUPT) { | |
1388 | u8 address = u132->addr[endp->usb_addr].address; | |
1389 | if (ring->in_use) { | |
50d8ca9b | 1390 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1391 | u132_endp_put_kref(u132, endp); |
1392 | return; | |
1393 | } else { | |
1394 | int retval; | |
1395 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & | |
1396 | endp->queue_next]; | |
1397 | endp->active = 1; | |
1398 | ring->curr_endp = endp; | |
1399 | ring->in_use = 1; | |
50d8ca9b | 1400 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1401 | retval = edset_single(u132, ring, endp, urb, address, |
1402 | endp->toggle_bits, u132_hcd_interrupt_recv); | |
1403 | if (retval != 0) | |
1404 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1405 | return; | |
1406 | } | |
1407 | } else if (endp->pipetype == PIPE_CONTROL) { | |
1408 | u8 address = u132->addr[endp->usb_addr].address; | |
1409 | if (ring->in_use) { | |
50d8ca9b | 1410 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1411 | u132_endp_put_kref(u132, endp); |
1412 | return; | |
1413 | } else if (address == 0) { | |
1414 | int retval; | |
1415 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & | |
1416 | endp->queue_next]; | |
1417 | endp->active = 1; | |
1418 | ring->curr_endp = endp; | |
1419 | ring->in_use = 1; | |
50d8ca9b | 1420 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1421 | retval = edset_setup(u132, ring, endp, urb, address, |
1422 | 0x2, u132_hcd_initial_setup_sent); | |
1423 | if (retval != 0) | |
1424 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1425 | return; | |
1426 | } else if (endp->usb_addr == 0) { | |
1427 | int retval; | |
1428 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & | |
1429 | endp->queue_next]; | |
1430 | endp->active = 1; | |
1431 | ring->curr_endp = endp; | |
1432 | ring->in_use = 1; | |
50d8ca9b | 1433 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1434 | retval = edset_setup(u132, ring, endp, urb, 0, 0x2, |
1435 | u132_hcd_enumeration_address_sent); | |
1436 | if (retval != 0) | |
1437 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1438 | return; | |
1439 | } else { | |
1440 | int retval; | |
b40f8d39 DW |
1441 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & |
1442 | endp->queue_next]; | |
1d6ec813 | 1443 | address = u132->addr[endp->usb_addr].address; |
b40f8d39 DW |
1444 | endp->active = 1; |
1445 | ring->curr_endp = endp; | |
1446 | ring->in_use = 1; | |
50d8ca9b | 1447 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1448 | retval = edset_setup(u132, ring, endp, urb, address, |
1449 | 0x2, u132_hcd_configure_setup_sent); | |
1450 | if (retval != 0) | |
1451 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1452 | return; | |
1453 | } | |
1454 | } else { | |
1455 | if (endp->input) { | |
1456 | u8 address = u132->addr[endp->usb_addr].address; | |
1457 | if (ring->in_use) { | |
50d8ca9b | 1458 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1459 | u132_endp_put_kref(u132, endp); |
1460 | return; | |
1461 | } else { | |
1462 | int retval; | |
1463 | struct urb *urb = endp->urb_list[ | |
1464 | ENDP_QUEUE_MASK & endp->queue_next]; | |
1465 | endp->active = 1; | |
1466 | ring->curr_endp = endp; | |
1467 | ring->in_use = 1; | |
50d8ca9b | 1468 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1469 | retval = edset_input(u132, ring, endp, urb, |
1470 | address, endp->toggle_bits, | |
1471 | u132_hcd_bulk_input_recv); | |
1472 | if (retval == 0) { | |
1473 | } else | |
1474 | u132_hcd_giveback_urb(u132, endp, urb, | |
1475 | retval); | |
1476 | return; | |
1477 | } | |
1478 | } else { /* output pipe */ | |
1479 | u8 address = u132->addr[endp->usb_addr].address; | |
1480 | if (ring->in_use) { | |
50d8ca9b | 1481 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1482 | u132_endp_put_kref(u132, endp); |
1483 | return; | |
1484 | } else { | |
1485 | int retval; | |
1486 | struct urb *urb = endp->urb_list[ | |
1487 | ENDP_QUEUE_MASK & endp->queue_next]; | |
1488 | endp->active = 1; | |
1489 | ring->curr_endp = endp; | |
1490 | ring->in_use = 1; | |
50d8ca9b | 1491 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1492 | retval = edset_output(u132, ring, endp, urb, |
1493 | address, endp->toggle_bits, | |
1494 | u132_hcd_bulk_output_sent); | |
1495 | if (retval == 0) { | |
1496 | } else | |
1497 | u132_hcd_giveback_urb(u132, endp, urb, | |
1498 | retval); | |
1499 | return; | |
1500 | } | |
1501 | } | |
1502 | } | |
d774efea | 1503 | } |
5b570d43 | 1504 | #ifdef CONFIG_PM |
d774efea TO |
1505 | |
1506 | static void port_power(struct u132 *u132, int pn, int is_on) | |
1507 | { | |
b40f8d39 | 1508 | u132->port[pn].power = is_on; |
d774efea TO |
1509 | } |
1510 | ||
5b570d43 G |
1511 | #endif |
1512 | ||
d774efea TO |
1513 | static void u132_power(struct u132 *u132, int is_on) |
1514 | { | |
b40f8d39 DW |
1515 | struct usb_hcd *hcd = u132_to_hcd(u132) |
1516 | ; /* hub is inactive unless the port is powered */ | |
1517 | if (is_on) { | |
1518 | if (u132->power) | |
1519 | return; | |
1520 | u132->power = 1; | |
1521 | } else { | |
1522 | u132->power = 0; | |
1523 | hcd->state = HC_STATE_HALT; | |
1524 | } | |
d774efea TO |
1525 | } |
1526 | ||
1527 | static int u132_periodic_reinit(struct u132 *u132) | |
1528 | { | |
b40f8d39 DW |
1529 | int retval; |
1530 | u32 fi = u132->hc_fminterval & 0x03fff; | |
1531 | u32 fit; | |
1532 | u32 fminterval; | |
1533 | retval = u132_read_pcimem(u132, fminterval, &fminterval); | |
1534 | if (retval) | |
1535 | return retval; | |
1536 | fit = fminterval & FIT; | |
1537 | retval = u132_write_pcimem(u132, fminterval, | |
1538 | (fit ^ FIT) | u132->hc_fminterval); | |
1539 | if (retval) | |
1540 | return retval; | |
8602b08a SK |
1541 | return u132_write_pcimem(u132, periodicstart, |
1542 | ((9 * fi) / 10) & 0x3fff); | |
d774efea TO |
1543 | } |
1544 | ||
1545 | static char *hcfs2string(int state) | |
1546 | { | |
b40f8d39 DW |
1547 | switch (state) { |
1548 | case OHCI_USB_RESET: | |
1549 | return "reset"; | |
1550 | case OHCI_USB_RESUME: | |
1551 | return "resume"; | |
1552 | case OHCI_USB_OPER: | |
1553 | return "operational"; | |
1554 | case OHCI_USB_SUSPEND: | |
1555 | return "suspend"; | |
1556 | } | |
1557 | return "?"; | |
d774efea TO |
1558 | } |
1559 | ||
d774efea TO |
1560 | static int u132_init(struct u132 *u132) |
1561 | { | |
b40f8d39 DW |
1562 | int retval; |
1563 | u32 control; | |
1564 | u132_disable(u132); | |
1565 | u132->next_statechange = jiffies; | |
1566 | retval = u132_write_pcimem(u132, intrdisable, OHCI_INTR_MIE); | |
1567 | if (retval) | |
1568 | return retval; | |
1569 | retval = u132_read_pcimem(u132, control, &control); | |
1570 | if (retval) | |
1571 | return retval; | |
1572 | if (u132->num_ports == 0) { | |
1573 | u32 rh_a = -1; | |
1574 | retval = u132_read_pcimem(u132, roothub.a, &rh_a); | |
1575 | if (retval) | |
1576 | return retval; | |
1577 | u132->num_ports = rh_a & RH_A_NDP; | |
1578 | retval = read_roothub_info(u132); | |
1579 | if (retval) | |
1580 | return retval; | |
1581 | } | |
1582 | if (u132->num_ports > MAX_U132_PORTS) | |
1583 | return -EINVAL; | |
1584 | ||
1585 | return 0; | |
d774efea TO |
1586 | } |
1587 | ||
1588 | ||
1589 | /* Start an OHCI controller, set the BUS operational | |
1590 | * resets USB and controller | |
1591 | * enable interrupts | |
1592 | */ | |
1593 | static int u132_run(struct u132 *u132) | |
1594 | { | |
b40f8d39 DW |
1595 | int retval; |
1596 | u32 control; | |
1597 | u32 status; | |
1598 | u32 fminterval; | |
1599 | u32 periodicstart; | |
1600 | u32 cmdstatus; | |
1601 | u32 roothub_a; | |
1602 | int mask = OHCI_INTR_INIT; | |
1603 | int first = u132->hc_fminterval == 0; | |
1604 | int sleep_time = 0; | |
1605 | int reset_timeout = 30; /* ... allow extra time */ | |
1606 | u132_disable(u132); | |
1607 | if (first) { | |
1608 | u32 temp; | |
1609 | retval = u132_read_pcimem(u132, fminterval, &temp); | |
1610 | if (retval) | |
1611 | return retval; | |
1612 | u132->hc_fminterval = temp & 0x3fff; | |
1613 | u132->hc_fminterval |= FSMP(u132->hc_fminterval) << 16; | |
1614 | } | |
1615 | retval = u132_read_pcimem(u132, control, &u132->hc_control); | |
1616 | if (retval) | |
1617 | return retval; | |
1618 | dev_info(&u132->platform_dev->dev, "resetting from state '%s', control " | |
1619 | "= %08X\n", hcfs2string(u132->hc_control & OHCI_CTRL_HCFS), | |
1620 | u132->hc_control); | |
1621 | switch (u132->hc_control & OHCI_CTRL_HCFS) { | |
1622 | case OHCI_USB_OPER: | |
1623 | sleep_time = 0; | |
1624 | break; | |
1625 | case OHCI_USB_SUSPEND: | |
1626 | case OHCI_USB_RESUME: | |
1627 | u132->hc_control &= OHCI_CTRL_RWC; | |
1628 | u132->hc_control |= OHCI_USB_RESUME; | |
1629 | sleep_time = 10; | |
1630 | break; | |
1631 | default: | |
1632 | u132->hc_control &= OHCI_CTRL_RWC; | |
1633 | u132->hc_control |= OHCI_USB_RESET; | |
1634 | sleep_time = 50; | |
1635 | break; | |
1636 | } | |
1637 | retval = u132_write_pcimem(u132, control, u132->hc_control); | |
1638 | if (retval) | |
1639 | return retval; | |
1640 | retval = u132_read_pcimem(u132, control, &control); | |
1641 | if (retval) | |
1642 | return retval; | |
1643 | msleep(sleep_time); | |
1644 | retval = u132_read_pcimem(u132, roothub.a, &roothub_a); | |
1645 | if (retval) | |
1646 | return retval; | |
1647 | if (!(roothub_a & RH_A_NPS)) { | |
1648 | int temp; /* power down each port */ | |
1649 | for (temp = 0; temp < u132->num_ports; temp++) { | |
1650 | retval = u132_write_pcimem(u132, | |
1651 | roothub.portstatus[temp], RH_PS_LSDA); | |
1652 | if (retval) | |
1653 | return retval; | |
1654 | } | |
1655 | } | |
1656 | retval = u132_read_pcimem(u132, control, &control); | |
1657 | if (retval) | |
1658 | return retval; | |
1659 | retry: | |
1660 | retval = u132_read_pcimem(u132, cmdstatus, &status); | |
1661 | if (retval) | |
1662 | return retval; | |
1663 | retval = u132_write_pcimem(u132, cmdstatus, OHCI_HCR); | |
1664 | if (retval) | |
1665 | return retval; | |
1666 | extra: { | |
1667 | retval = u132_read_pcimem(u132, cmdstatus, &status); | |
1668 | if (retval) | |
1669 | return retval; | |
1670 | if (0 != (status & OHCI_HCR)) { | |
1671 | if (--reset_timeout == 0) { | |
1672 | dev_err(&u132->platform_dev->dev, "USB HC reset" | |
1673 | " timed out!\n"); | |
1674 | return -ENODEV; | |
1675 | } else { | |
1676 | msleep(5); | |
1677 | goto extra; | |
1678 | } | |
1679 | } | |
1680 | } | |
1681 | if (u132->flags & OHCI_QUIRK_INITRESET) { | |
1682 | retval = u132_write_pcimem(u132, control, u132->hc_control); | |
1683 | if (retval) | |
1684 | return retval; | |
1685 | retval = u132_read_pcimem(u132, control, &control); | |
1686 | if (retval) | |
1687 | return retval; | |
1688 | } | |
1689 | retval = u132_write_pcimem(u132, ed_controlhead, 0x00000000); | |
1690 | if (retval) | |
1691 | return retval; | |
1692 | retval = u132_write_pcimem(u132, ed_bulkhead, 0x11000000); | |
1693 | if (retval) | |
1694 | return retval; | |
1695 | retval = u132_write_pcimem(u132, hcca, 0x00000000); | |
1696 | if (retval) | |
1697 | return retval; | |
1698 | retval = u132_periodic_reinit(u132); | |
1699 | if (retval) | |
1700 | return retval; | |
1701 | retval = u132_read_pcimem(u132, fminterval, &fminterval); | |
1702 | if (retval) | |
1703 | return retval; | |
1704 | retval = u132_read_pcimem(u132, periodicstart, &periodicstart); | |
1705 | if (retval) | |
1706 | return retval; | |
1707 | if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) { | |
1708 | if (!(u132->flags & OHCI_QUIRK_INITRESET)) { | |
1709 | u132->flags |= OHCI_QUIRK_INITRESET; | |
1710 | goto retry; | |
1711 | } else | |
1712 | dev_err(&u132->platform_dev->dev, "init err(%08x %04x)" | |
1713 | "\n", fminterval, periodicstart); | |
1714 | } /* start controller operations */ | |
1715 | u132->hc_control &= OHCI_CTRL_RWC; | |
1716 | u132->hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER; | |
1717 | retval = u132_write_pcimem(u132, control, u132->hc_control); | |
1718 | if (retval) | |
1719 | return retval; | |
1720 | retval = u132_write_pcimem(u132, cmdstatus, OHCI_BLF); | |
1721 | if (retval) | |
1722 | return retval; | |
1723 | retval = u132_read_pcimem(u132, cmdstatus, &cmdstatus); | |
1724 | if (retval) | |
1725 | return retval; | |
1726 | retval = u132_read_pcimem(u132, control, &control); | |
1727 | if (retval) | |
1728 | return retval; | |
1729 | u132_to_hcd(u132)->state = HC_STATE_RUNNING; | |
1730 | retval = u132_write_pcimem(u132, roothub.status, RH_HS_DRWE); | |
1731 | if (retval) | |
1732 | return retval; | |
1733 | retval = u132_write_pcimem(u132, intrstatus, mask); | |
1734 | if (retval) | |
1735 | return retval; | |
1736 | retval = u132_write_pcimem(u132, intrdisable, | |
1737 | OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO | | |
1738 | OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH | | |
1739 | OHCI_INTR_SO); | |
1740 | if (retval) | |
1741 | return retval; /* handle root hub init quirks ... */ | |
1742 | retval = u132_read_pcimem(u132, roothub.a, &roothub_a); | |
1743 | if (retval) | |
1744 | return retval; | |
1745 | roothub_a &= ~(RH_A_PSM | RH_A_OCPM); | |
1746 | if (u132->flags & OHCI_QUIRK_SUPERIO) { | |
1747 | roothub_a |= RH_A_NOCP; | |
1748 | roothub_a &= ~(RH_A_POTPGT | RH_A_NPS); | |
1749 | retval = u132_write_pcimem(u132, roothub.a, roothub_a); | |
1750 | if (retval) | |
1751 | return retval; | |
1752 | } else if ((u132->flags & OHCI_QUIRK_AMD756) || distrust_firmware) { | |
1753 | roothub_a |= RH_A_NPS; | |
1754 | retval = u132_write_pcimem(u132, roothub.a, roothub_a); | |
1755 | if (retval) | |
1756 | return retval; | |
1757 | } | |
1758 | retval = u132_write_pcimem(u132, roothub.status, RH_HS_LPSC); | |
1759 | if (retval) | |
1760 | return retval; | |
1761 | retval = u132_write_pcimem(u132, roothub.b, | |
1762 | (roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM); | |
1763 | if (retval) | |
1764 | return retval; | |
1765 | retval = u132_read_pcimem(u132, control, &control); | |
1766 | if (retval) | |
1767 | return retval; | |
1768 | mdelay((roothub_a >> 23) & 0x1fe); | |
1769 | u132_to_hcd(u132)->state = HC_STATE_RUNNING; | |
1770 | return 0; | |
d774efea TO |
1771 | } |
1772 | ||
1773 | static void u132_hcd_stop(struct usb_hcd *hcd) | |
1774 | { | |
b40f8d39 DW |
1775 | struct u132 *u132 = hcd_to_u132(hcd); |
1776 | if (u132->going > 1) { | |
1777 | dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p) has b" | |
1778 | "een removed %d\n", u132, hcd, u132->going); | |
1779 | } else if (u132->going > 0) { | |
1780 | dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" | |
1781 | "ed\n", hcd); | |
1782 | } else { | |
1783 | mutex_lock(&u132->sw_lock); | |
1784 | msleep(100); | |
1785 | u132_power(u132, 0); | |
1786 | mutex_unlock(&u132->sw_lock); | |
1787 | } | |
d774efea TO |
1788 | } |
1789 | ||
1790 | static int u132_hcd_start(struct usb_hcd *hcd) | |
1791 | { | |
b40f8d39 DW |
1792 | struct u132 *u132 = hcd_to_u132(hcd); |
1793 | if (u132->going > 1) { | |
1794 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1795 | , u132->going); | |
1796 | return -ENODEV; | |
1797 | } else if (u132->going > 0) { | |
1798 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
1799 | return -ESHUTDOWN; | |
1800 | } else if (hcd->self.controller) { | |
1801 | int retval; | |
1802 | struct platform_device *pdev = | |
1803 | to_platform_device(hcd->self.controller); | |
1804 | u16 vendor = ((struct u132_platform_data *) | |
d4f09e28 | 1805 | dev_get_platdata(&pdev->dev))->vendor; |
b40f8d39 | 1806 | u16 device = ((struct u132_platform_data *) |
d4f09e28 | 1807 | dev_get_platdata(&pdev->dev))->device; |
b40f8d39 DW |
1808 | mutex_lock(&u132->sw_lock); |
1809 | msleep(10); | |
1810 | if (vendor == PCI_VENDOR_ID_AMD && device == 0x740c) { | |
1811 | u132->flags = OHCI_QUIRK_AMD756; | |
1812 | } else if (vendor == PCI_VENDOR_ID_OPTI && device == 0xc861) { | |
1813 | dev_err(&u132->platform_dev->dev, "WARNING: OPTi workar" | |
1814 | "ounds unavailable\n"); | |
1815 | } else if (vendor == PCI_VENDOR_ID_COMPAQ && device == 0xa0f8) | |
1816 | u132->flags |= OHCI_QUIRK_ZFMICRO; | |
1817 | retval = u132_run(u132); | |
1818 | if (retval) { | |
1819 | u132_disable(u132); | |
1820 | u132->going = 1; | |
1821 | } | |
1822 | msleep(100); | |
1823 | mutex_unlock(&u132->sw_lock); | |
1824 | return retval; | |
1825 | } else { | |
1826 | dev_err(&u132->platform_dev->dev, "platform_device missing\n"); | |
1827 | return -ENODEV; | |
1828 | } | |
d774efea TO |
1829 | } |
1830 | ||
1831 | static int u132_hcd_reset(struct usb_hcd *hcd) | |
1832 | { | |
b40f8d39 DW |
1833 | struct u132 *u132 = hcd_to_u132(hcd); |
1834 | if (u132->going > 1) { | |
1835 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1836 | , u132->going); | |
1837 | return -ENODEV; | |
1838 | } else if (u132->going > 0) { | |
1839 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
1840 | return -ESHUTDOWN; | |
1841 | } else { | |
1842 | int retval; | |
1843 | mutex_lock(&u132->sw_lock); | |
1844 | retval = u132_init(u132); | |
1845 | if (retval) { | |
1846 | u132_disable(u132); | |
1847 | u132->going = 1; | |
1848 | } | |
1849 | mutex_unlock(&u132->sw_lock); | |
1850 | return retval; | |
1851 | } | |
d774efea TO |
1852 | } |
1853 | ||
1854 | static int create_endpoint_and_queue_int(struct u132 *u132, | |
e9df41c5 | 1855 | struct u132_udev *udev, struct urb *urb, |
b40f8d39 DW |
1856 | struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address, |
1857 | gfp_t mem_flags) | |
d774efea | 1858 | { |
b40f8d39 DW |
1859 | struct u132_ring *ring; |
1860 | unsigned long irqs; | |
e9df41c5 AS |
1861 | int rc; |
1862 | u8 endp_number; | |
1863 | struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); | |
1864 | ||
b40f8d39 DW |
1865 | if (!endp) |
1866 | return -ENOMEM; | |
e9df41c5 AS |
1867 | |
1868 | spin_lock_init(&endp->queue_lock.slock); | |
1869 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
1870 | rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); | |
1871 | if (rc) { | |
1872 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
1873 | kfree(endp); | |
1874 | return rc; | |
1875 | } | |
1876 | ||
1877 | endp_number = ++u132->num_endpoints; | |
1878 | urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; | |
b40f8d39 DW |
1879 | INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
1880 | INIT_LIST_HEAD(&endp->urb_more); | |
1881 | ring = endp->ring = &u132->ring[0]; | |
1882 | if (ring->curr_endp) { | |
1883 | list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); | |
1884 | } else { | |
1885 | INIT_LIST_HEAD(&endp->endp_ring); | |
1886 | ring->curr_endp = endp; | |
1887 | } | |
1888 | ring->length += 1; | |
1889 | endp->dequeueing = 0; | |
1890 | endp->edset_flush = 0; | |
1891 | endp->active = 0; | |
1892 | endp->delayed = 0; | |
1893 | endp->endp_number = endp_number; | |
1894 | endp->u132 = u132; | |
e9df41c5 | 1895 | endp->hep = urb->ep; |
b40f8d39 DW |
1896 | endp->pipetype = usb_pipetype(urb->pipe); |
1897 | u132_endp_init_kref(u132, endp); | |
1898 | if (usb_pipein(urb->pipe)) { | |
1899 | endp->toggle_bits = 0x2; | |
1900 | usb_settoggle(udev->usb_device, usb_endp, 0, 0); | |
1901 | endp->input = 1; | |
1902 | endp->output = 0; | |
1903 | udev->endp_number_in[usb_endp] = endp_number; | |
1904 | u132_udev_get_kref(u132, udev); | |
1905 | } else { | |
1906 | endp->toggle_bits = 0x2; | |
1907 | usb_settoggle(udev->usb_device, usb_endp, 1, 0); | |
1908 | endp->input = 0; | |
1909 | endp->output = 1; | |
1910 | udev->endp_number_out[usb_endp] = endp_number; | |
1911 | u132_udev_get_kref(u132, udev); | |
1912 | } | |
1913 | urb->hcpriv = u132; | |
1914 | endp->delayed = 1; | |
1915 | endp->jiffies = jiffies + msecs_to_jiffies(urb->interval); | |
1916 | endp->udev_number = address; | |
1917 | endp->usb_addr = usb_addr; | |
1918 | endp->usb_endp = usb_endp; | |
1919 | endp->queue_size = 1; | |
1920 | endp->queue_last = 0; | |
1921 | endp->queue_next = 0; | |
1922 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
1923 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
1924 | u132_endp_queue_work(u132, endp, msecs_to_jiffies(urb->interval)); | |
1925 | return 0; | |
d774efea TO |
1926 | } |
1927 | ||
e9df41c5 AS |
1928 | static int queue_int_on_old_endpoint(struct u132 *u132, |
1929 | struct u132_udev *udev, struct urb *urb, | |
b40f8d39 DW |
1930 | struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
1931 | u8 usb_endp, u8 address) | |
1932 | { | |
1933 | urb->hcpriv = u132; | |
1934 | endp->delayed = 1; | |
1935 | endp->jiffies = jiffies + msecs_to_jiffies(urb->interval); | |
1936 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
1937 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
1938 | } else { | |
1939 | struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq), | |
1940 | GFP_ATOMIC); | |
1941 | if (urbq == NULL) { | |
1942 | endp->queue_size -= 1; | |
1943 | return -ENOMEM; | |
1944 | } else { | |
1945 | list_add_tail(&urbq->urb_more, &endp->urb_more); | |
1946 | urbq->urb = urb; | |
1947 | } | |
1948 | } | |
1949 | return 0; | |
d774efea TO |
1950 | } |
1951 | ||
1952 | static int create_endpoint_and_queue_bulk(struct u132 *u132, | |
e9df41c5 | 1953 | struct u132_udev *udev, struct urb *urb, |
b40f8d39 DW |
1954 | struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address, |
1955 | gfp_t mem_flags) | |
d774efea | 1956 | { |
b40f8d39 DW |
1957 | int ring_number; |
1958 | struct u132_ring *ring; | |
1959 | unsigned long irqs; | |
e9df41c5 AS |
1960 | int rc; |
1961 | u8 endp_number; | |
1962 | struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); | |
1963 | ||
b40f8d39 DW |
1964 | if (!endp) |
1965 | return -ENOMEM; | |
e9df41c5 AS |
1966 | |
1967 | spin_lock_init(&endp->queue_lock.slock); | |
1968 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
1969 | rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); | |
1970 | if (rc) { | |
1971 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
1972 | kfree(endp); | |
1973 | return rc; | |
1974 | } | |
1975 | ||
1976 | endp_number = ++u132->num_endpoints; | |
1977 | urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; | |
b40f8d39 DW |
1978 | INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
1979 | INIT_LIST_HEAD(&endp->urb_more); | |
1980 | endp->dequeueing = 0; | |
1981 | endp->edset_flush = 0; | |
1982 | endp->active = 0; | |
1983 | endp->delayed = 0; | |
1984 | endp->endp_number = endp_number; | |
1985 | endp->u132 = u132; | |
e9df41c5 | 1986 | endp->hep = urb->ep; |
b40f8d39 DW |
1987 | endp->pipetype = usb_pipetype(urb->pipe); |
1988 | u132_endp_init_kref(u132, endp); | |
1989 | if (usb_pipein(urb->pipe)) { | |
1990 | endp->toggle_bits = 0x2; | |
1991 | usb_settoggle(udev->usb_device, usb_endp, 0, 0); | |
1992 | ring_number = 3; | |
1993 | endp->input = 1; | |
1994 | endp->output = 0; | |
1995 | udev->endp_number_in[usb_endp] = endp_number; | |
1996 | u132_udev_get_kref(u132, udev); | |
1997 | } else { | |
1998 | endp->toggle_bits = 0x2; | |
1999 | usb_settoggle(udev->usb_device, usb_endp, 1, 0); | |
2000 | ring_number = 2; | |
2001 | endp->input = 0; | |
2002 | endp->output = 1; | |
2003 | udev->endp_number_out[usb_endp] = endp_number; | |
2004 | u132_udev_get_kref(u132, udev); | |
2005 | } | |
2006 | ring = endp->ring = &u132->ring[ring_number - 1]; | |
2007 | if (ring->curr_endp) { | |
2008 | list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); | |
2009 | } else { | |
2010 | INIT_LIST_HEAD(&endp->endp_ring); | |
2011 | ring->curr_endp = endp; | |
2012 | } | |
2013 | ring->length += 1; | |
2014 | urb->hcpriv = u132; | |
2015 | endp->udev_number = address; | |
2016 | endp->usb_addr = usb_addr; | |
2017 | endp->usb_endp = usb_endp; | |
2018 | endp->queue_size = 1; | |
2019 | endp->queue_last = 0; | |
2020 | endp->queue_next = 0; | |
2021 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
2022 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2023 | u132_endp_queue_work(u132, endp, 0); | |
2024 | return 0; | |
d774efea TO |
2025 | } |
2026 | ||
2027 | static int queue_bulk_on_old_endpoint(struct u132 *u132, struct u132_udev *udev, | |
e9df41c5 | 2028 | struct urb *urb, |
b40f8d39 DW |
2029 | struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
2030 | u8 usb_endp, u8 address) | |
2031 | { | |
2032 | urb->hcpriv = u132; | |
2033 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
2034 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
2035 | } else { | |
2036 | struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq), | |
2037 | GFP_ATOMIC); | |
2038 | if (urbq == NULL) { | |
2039 | endp->queue_size -= 1; | |
2040 | return -ENOMEM; | |
2041 | } else { | |
2042 | list_add_tail(&urbq->urb_more, &endp->urb_more); | |
2043 | urbq->urb = urb; | |
2044 | } | |
2045 | } | |
2046 | return 0; | |
d774efea TO |
2047 | } |
2048 | ||
2049 | static int create_endpoint_and_queue_control(struct u132 *u132, | |
e9df41c5 | 2050 | struct urb *urb, |
b40f8d39 DW |
2051 | struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, |
2052 | gfp_t mem_flags) | |
d774efea | 2053 | { |
b40f8d39 | 2054 | struct u132_ring *ring; |
e9df41c5 AS |
2055 | unsigned long irqs; |
2056 | int rc; | |
2057 | u8 endp_number; | |
2058 | struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); | |
2059 | ||
b40f8d39 DW |
2060 | if (!endp) |
2061 | return -ENOMEM; | |
e9df41c5 AS |
2062 | |
2063 | spin_lock_init(&endp->queue_lock.slock); | |
2064 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
2065 | rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); | |
2066 | if (rc) { | |
2067 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2068 | kfree(endp); | |
2069 | return rc; | |
2070 | } | |
2071 | ||
2072 | endp_number = ++u132->num_endpoints; | |
2073 | urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; | |
b40f8d39 DW |
2074 | INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
2075 | INIT_LIST_HEAD(&endp->urb_more); | |
2076 | ring = endp->ring = &u132->ring[0]; | |
2077 | if (ring->curr_endp) { | |
2078 | list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); | |
2079 | } else { | |
2080 | INIT_LIST_HEAD(&endp->endp_ring); | |
2081 | ring->curr_endp = endp; | |
2082 | } | |
2083 | ring->length += 1; | |
2084 | endp->dequeueing = 0; | |
2085 | endp->edset_flush = 0; | |
2086 | endp->active = 0; | |
2087 | endp->delayed = 0; | |
2088 | endp->endp_number = endp_number; | |
2089 | endp->u132 = u132; | |
e9df41c5 | 2090 | endp->hep = urb->ep; |
b40f8d39 DW |
2091 | u132_endp_init_kref(u132, endp); |
2092 | u132_endp_get_kref(u132, endp); | |
2093 | if (usb_addr == 0) { | |
2094 | u8 address = u132->addr[usb_addr].address; | |
2095 | struct u132_udev *udev = &u132->udev[address]; | |
2096 | endp->udev_number = address; | |
2097 | endp->usb_addr = usb_addr; | |
2098 | endp->usb_endp = usb_endp; | |
2099 | endp->input = 1; | |
2100 | endp->output = 1; | |
2101 | endp->pipetype = usb_pipetype(urb->pipe); | |
2102 | u132_udev_init_kref(u132, udev); | |
2103 | u132_udev_get_kref(u132, udev); | |
2104 | udev->endp_number_in[usb_endp] = endp_number; | |
2105 | udev->endp_number_out[usb_endp] = endp_number; | |
2106 | urb->hcpriv = u132; | |
2107 | endp->queue_size = 1; | |
2108 | endp->queue_last = 0; | |
2109 | endp->queue_next = 0; | |
2110 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
2111 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2112 | u132_endp_queue_work(u132, endp, 0); | |
2113 | return 0; | |
2114 | } else { /*(usb_addr > 0) */ | |
2115 | u8 address = u132->addr[usb_addr].address; | |
2116 | struct u132_udev *udev = &u132->udev[address]; | |
2117 | endp->udev_number = address; | |
2118 | endp->usb_addr = usb_addr; | |
2119 | endp->usb_endp = usb_endp; | |
2120 | endp->input = 1; | |
2121 | endp->output = 1; | |
2122 | endp->pipetype = usb_pipetype(urb->pipe); | |
2123 | u132_udev_get_kref(u132, udev); | |
2124 | udev->enumeration = 2; | |
2125 | udev->endp_number_in[usb_endp] = endp_number; | |
2126 | udev->endp_number_out[usb_endp] = endp_number; | |
2127 | urb->hcpriv = u132; | |
2128 | endp->queue_size = 1; | |
2129 | endp->queue_last = 0; | |
2130 | endp->queue_next = 0; | |
2131 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
2132 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2133 | u132_endp_queue_work(u132, endp, 0); | |
2134 | return 0; | |
2135 | } | |
d774efea TO |
2136 | } |
2137 | ||
2138 | static int queue_control_on_old_endpoint(struct u132 *u132, | |
e9df41c5 | 2139 | struct urb *urb, |
b40f8d39 DW |
2140 | struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
2141 | u8 usb_endp) | |
2142 | { | |
2143 | if (usb_addr == 0) { | |
2144 | if (usb_pipein(urb->pipe)) { | |
2145 | urb->hcpriv = u132; | |
2146 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
2147 | endp->urb_list[ENDP_QUEUE_MASK & | |
2148 | endp->queue_last++] = urb; | |
2149 | } else { | |
2150 | struct u132_urbq *urbq = | |
2151 | kmalloc(sizeof(struct u132_urbq), | |
2152 | GFP_ATOMIC); | |
2153 | if (urbq == NULL) { | |
2154 | endp->queue_size -= 1; | |
2155 | return -ENOMEM; | |
2156 | } else { | |
2157 | list_add_tail(&urbq->urb_more, | |
2158 | &endp->urb_more); | |
2159 | urbq->urb = urb; | |
2160 | } | |
2161 | } | |
2162 | return 0; | |
2163 | } else { /* usb_pipeout(urb->pipe) */ | |
2164 | struct u132_addr *addr = &u132->addr[usb_dev->devnum]; | |
2165 | int I = MAX_U132_UDEVS; | |
2166 | int i = 0; | |
2167 | while (--I > 0) { | |
2168 | struct u132_udev *udev = &u132->udev[++i]; | |
2169 | if (udev->usb_device) { | |
2170 | continue; | |
2171 | } else { | |
2172 | udev->enumeration = 1; | |
2173 | u132->addr[0].address = i; | |
2174 | endp->udev_number = i; | |
2175 | udev->udev_number = i; | |
2176 | udev->usb_addr = usb_dev->devnum; | |
2177 | u132_udev_init_kref(u132, udev); | |
2178 | udev->endp_number_in[usb_endp] = | |
2179 | endp->endp_number; | |
2180 | u132_udev_get_kref(u132, udev); | |
2181 | udev->endp_number_out[usb_endp] = | |
2182 | endp->endp_number; | |
2183 | udev->usb_device = usb_dev; | |
2184 | ((u8 *) (urb->setup_packet))[2] = | |
2185 | addr->address = i; | |
2186 | u132_udev_get_kref(u132, udev); | |
2187 | break; | |
2188 | } | |
2189 | } | |
2190 | if (I == 0) { | |
2191 | dev_err(&u132->platform_dev->dev, "run out of d" | |
2192 | "evice space\n"); | |
2193 | return -EINVAL; | |
2194 | } | |
2195 | urb->hcpriv = u132; | |
2196 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
2197 | endp->urb_list[ENDP_QUEUE_MASK & | |
2198 | endp->queue_last++] = urb; | |
2199 | } else { | |
2200 | struct u132_urbq *urbq = | |
2201 | kmalloc(sizeof(struct u132_urbq), | |
2202 | GFP_ATOMIC); | |
2203 | if (urbq == NULL) { | |
2204 | endp->queue_size -= 1; | |
2205 | return -ENOMEM; | |
2206 | } else { | |
2207 | list_add_tail(&urbq->urb_more, | |
2208 | &endp->urb_more); | |
2209 | urbq->urb = urb; | |
2210 | } | |
2211 | } | |
2212 | return 0; | |
2213 | } | |
2214 | } else { /*(usb_addr > 0) */ | |
2215 | u8 address = u132->addr[usb_addr].address; | |
2216 | struct u132_udev *udev = &u132->udev[address]; | |
2217 | urb->hcpriv = u132; | |
2218 | if (udev->enumeration != 2) | |
2219 | udev->enumeration = 2; | |
2220 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
2221 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = | |
2222 | urb; | |
2223 | } else { | |
2224 | struct u132_urbq *urbq = | |
2225 | kmalloc(sizeof(struct u132_urbq), GFP_ATOMIC); | |
2226 | if (urbq == NULL) { | |
2227 | endp->queue_size -= 1; | |
2228 | return -ENOMEM; | |
2229 | } else { | |
2230 | list_add_tail(&urbq->urb_more, &endp->urb_more); | |
2231 | urbq->urb = urb; | |
2232 | } | |
2233 | } | |
2234 | return 0; | |
2235 | } | |
d774efea TO |
2236 | } |
2237 | ||
e9df41c5 AS |
2238 | static int u132_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, |
2239 | gfp_t mem_flags) | |
d774efea | 2240 | { |
b40f8d39 DW |
2241 | struct u132 *u132 = hcd_to_u132(hcd); |
2242 | if (irqs_disabled()) { | |
d0164adc | 2243 | if (gfpflags_allow_blocking(mem_flags)) { |
d5f9e733 | 2244 | printk(KERN_ERR "invalid context for function that might sleep\n"); |
b40f8d39 DW |
2245 | return -EINVAL; |
2246 | } | |
2247 | } | |
2248 | if (u132->going > 1) { | |
2249 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2250 | , u132->going); | |
2251 | return -ENODEV; | |
2252 | } else if (u132->going > 0) { | |
eb231054 AS |
2253 | dev_err(&u132->platform_dev->dev, "device is being removed " |
2254 | "urb=%p\n", urb); | |
b40f8d39 DW |
2255 | return -ESHUTDOWN; |
2256 | } else { | |
2257 | u8 usb_addr = usb_pipedevice(urb->pipe); | |
2258 | u8 usb_endp = usb_pipeendpoint(urb->pipe); | |
2259 | struct usb_device *usb_dev = urb->dev; | |
2260 | if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) { | |
2261 | u8 address = u132->addr[usb_addr].address; | |
2262 | struct u132_udev *udev = &u132->udev[address]; | |
2263 | struct u132_endp *endp = urb->ep->hcpriv; | |
2264 | urb->actual_length = 0; | |
2265 | if (endp) { | |
2266 | unsigned long irqs; | |
2267 | int retval; | |
2268 | spin_lock_irqsave(&endp->queue_lock.slock, | |
2269 | irqs); | |
e9df41c5 AS |
2270 | retval = usb_hcd_link_urb_to_ep(hcd, urb); |
2271 | if (retval == 0) { | |
2272 | retval = queue_int_on_old_endpoint( | |
2273 | u132, udev, urb, | |
2274 | usb_dev, endp, | |
2275 | usb_addr, usb_endp, | |
2276 | address); | |
2277 | if (retval) | |
2278 | usb_hcd_unlink_urb_from_ep( | |
b40f8d39 DW |
2279 | hcd, urb); |
2280 | } | |
2281 | spin_unlock_irqrestore(&endp->queue_lock.slock, | |
2282 | irqs); | |
2283 | if (retval) { | |
2284 | return retval; | |
2285 | } else { | |
2286 | u132_endp_queue_work(u132, endp, | |
2287 | msecs_to_jiffies(urb->interval)) | |
2288 | ; | |
2289 | return 0; | |
e9df41c5 | 2290 | } |
b40f8d39 DW |
2291 | } else if (u132->num_endpoints == MAX_U132_ENDPS) { |
2292 | return -EINVAL; | |
2293 | } else { /*(endp == NULL) */ | |
2294 | return create_endpoint_and_queue_int(u132, udev, | |
e9df41c5 AS |
2295 | urb, usb_dev, usb_addr, |
2296 | usb_endp, address, mem_flags); | |
b40f8d39 DW |
2297 | } |
2298 | } else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { | |
2299 | dev_err(&u132->platform_dev->dev, "the hardware does no" | |
2300 | "t support PIPE_ISOCHRONOUS\n"); | |
2301 | return -EINVAL; | |
2302 | } else if (usb_pipetype(urb->pipe) == PIPE_BULK) { | |
2303 | u8 address = u132->addr[usb_addr].address; | |
2304 | struct u132_udev *udev = &u132->udev[address]; | |
2305 | struct u132_endp *endp = urb->ep->hcpriv; | |
2306 | urb->actual_length = 0; | |
2307 | if (endp) { | |
2308 | unsigned long irqs; | |
2309 | int retval; | |
2310 | spin_lock_irqsave(&endp->queue_lock.slock, | |
2311 | irqs); | |
e9df41c5 AS |
2312 | retval = usb_hcd_link_urb_to_ep(hcd, urb); |
2313 | if (retval == 0) { | |
2314 | retval = queue_bulk_on_old_endpoint( | |
2315 | u132, udev, urb, | |
2316 | usb_dev, endp, | |
2317 | usb_addr, usb_endp, | |
2318 | address); | |
2319 | if (retval) | |
2320 | usb_hcd_unlink_urb_from_ep( | |
b40f8d39 DW |
2321 | hcd, urb); |
2322 | } | |
2323 | spin_unlock_irqrestore(&endp->queue_lock.slock, | |
2324 | irqs); | |
2325 | if (retval) { | |
2326 | return retval; | |
2327 | } else { | |
2328 | u132_endp_queue_work(u132, endp, 0); | |
2329 | return 0; | |
e9df41c5 | 2330 | } |
b40f8d39 DW |
2331 | } else if (u132->num_endpoints == MAX_U132_ENDPS) { |
2332 | return -EINVAL; | |
2333 | } else | |
2334 | return create_endpoint_and_queue_bulk(u132, | |
e9df41c5 | 2335 | udev, urb, usb_dev, usb_addr, |
b40f8d39 DW |
2336 | usb_endp, address, mem_flags); |
2337 | } else { | |
2338 | struct u132_endp *endp = urb->ep->hcpriv; | |
2339 | u16 urb_size = 8; | |
2340 | u8 *b = urb->setup_packet; | |
2341 | int i = 0; | |
2342 | char data[30 * 3 + 4]; | |
2343 | char *d = data; | |
2344 | int m = (sizeof(data) - 1) / 3; | |
2345 | int l = 0; | |
2346 | data[0] = 0; | |
2347 | while (urb_size-- > 0) { | |
2348 | if (i > m) { | |
2349 | } else if (i++ < m) { | |
2350 | int w = sprintf(d, " %02X", *b++); | |
2351 | d += w; | |
2352 | l += w; | |
2353 | } else | |
2354 | d += sprintf(d, " .."); | |
2355 | } | |
2356 | if (endp) { | |
2357 | unsigned long irqs; | |
2358 | int retval; | |
2359 | spin_lock_irqsave(&endp->queue_lock.slock, | |
2360 | irqs); | |
e9df41c5 AS |
2361 | retval = usb_hcd_link_urb_to_ep(hcd, urb); |
2362 | if (retval == 0) { | |
2363 | retval = queue_control_on_old_endpoint( | |
2364 | u132, urb, usb_dev, | |
2365 | endp, usb_addr, | |
2366 | usb_endp); | |
2367 | if (retval) | |
2368 | usb_hcd_unlink_urb_from_ep( | |
2369 | hcd, urb); | |
2370 | } | |
b40f8d39 DW |
2371 | spin_unlock_irqrestore(&endp->queue_lock.slock, |
2372 | irqs); | |
2373 | if (retval) { | |
2374 | return retval; | |
2375 | } else { | |
2376 | u132_endp_queue_work(u132, endp, 0); | |
2377 | return 0; | |
2378 | } | |
2379 | } else if (u132->num_endpoints == MAX_U132_ENDPS) { | |
2380 | return -EINVAL; | |
2381 | } else | |
2382 | return create_endpoint_and_queue_control(u132, | |
e9df41c5 | 2383 | urb, usb_dev, usb_addr, usb_endp, |
b40f8d39 DW |
2384 | mem_flags); |
2385 | } | |
2386 | } | |
d774efea TO |
2387 | } |
2388 | ||
2389 | static int dequeue_from_overflow_chain(struct u132 *u132, | |
b40f8d39 DW |
2390 | struct u132_endp *endp, struct urb *urb) |
2391 | { | |
4e5d7a82 GT |
2392 | struct u132_urbq *urbq; |
2393 | ||
2394 | list_for_each_entry(urbq, &endp->urb_more, urb_more) { | |
b40f8d39 DW |
2395 | if (urbq->urb == urb) { |
2396 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
4e5d7a82 | 2397 | list_del(&urbq->urb_more); |
b40f8d39 DW |
2398 | endp->queue_size -= 1; |
2399 | urb->error_count = 0; | |
4a00027d | 2400 | usb_hcd_giveback_urb(hcd, urb, 0); |
b40f8d39 DW |
2401 | return 0; |
2402 | } else | |
2403 | continue; | |
2404 | } | |
2405 | dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]=%p ring" | |
2406 | "[%d] %c%c usb_endp=%d usb_addr=%d size=%d next=%04X last=%04X" | |
2407 | "\n", urb, endp->endp_number, endp, endp->ring->number, | |
2408 | endp->input ? 'I' : ' ', endp->output ? 'O' : ' ', | |
2409 | endp->usb_endp, endp->usb_addr, endp->queue_size, | |
2410 | endp->queue_next, endp->queue_last); | |
2411 | return -EINVAL; | |
d774efea TO |
2412 | } |
2413 | ||
2414 | static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp, | |
e9df41c5 | 2415 | struct urb *urb, int status) |
d774efea | 2416 | { |
b40f8d39 | 2417 | unsigned long irqs; |
e9df41c5 AS |
2418 | int rc; |
2419 | ||
b40f8d39 | 2420 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
e9df41c5 AS |
2421 | rc = usb_hcd_check_unlink_urb(u132_to_hcd(u132), urb, status); |
2422 | if (rc) { | |
2423 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2424 | return rc; | |
2425 | } | |
b40f8d39 DW |
2426 | if (endp->queue_size == 0) { |
2427 | dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]" | |
2428 | "=%p ring[%d] %c%c usb_endp=%d usb_addr=%d\n", urb, | |
2429 | endp->endp_number, endp, endp->ring->number, | |
2430 | endp->input ? 'I' : ' ', endp->output ? 'O' : ' ', | |
2431 | endp->usb_endp, endp->usb_addr); | |
2432 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2433 | return -EINVAL; | |
2434 | } | |
2435 | if (urb == endp->urb_list[ENDP_QUEUE_MASK & endp->queue_next]) { | |
2436 | if (endp->active) { | |
2437 | endp->dequeueing = 1; | |
2438 | endp->edset_flush = 1; | |
2439 | u132_endp_queue_work(u132, endp, 0); | |
2440 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2441 | return 0; | |
2442 | } else { | |
2443 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
4a00027d | 2444 | u132_hcd_abandon_urb(u132, endp, urb, status); |
b40f8d39 DW |
2445 | return 0; |
2446 | } | |
2447 | } else { | |
2448 | u16 queue_list = 0; | |
2449 | u16 queue_size = endp->queue_size; | |
2450 | u16 queue_scan = endp->queue_next; | |
2451 | struct urb **urb_slot = NULL; | |
2452 | while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) { | |
2453 | if (urb == endp->urb_list[ENDP_QUEUE_MASK & | |
2454 | ++queue_scan]) { | |
2455 | urb_slot = &endp->urb_list[ENDP_QUEUE_MASK & | |
2456 | queue_scan]; | |
2457 | break; | |
2458 | } else | |
2459 | continue; | |
2460 | } | |
2461 | while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) { | |
2462 | *urb_slot = endp->urb_list[ENDP_QUEUE_MASK & | |
2463 | ++queue_scan]; | |
2464 | urb_slot = &endp->urb_list[ENDP_QUEUE_MASK & | |
2465 | queue_scan]; | |
2466 | } | |
2467 | if (urb_slot) { | |
2468 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
e9df41c5 AS |
2469 | |
2470 | usb_hcd_unlink_urb_from_ep(hcd, urb); | |
b40f8d39 DW |
2471 | endp->queue_size -= 1; |
2472 | if (list_empty(&endp->urb_more)) { | |
2473 | spin_unlock_irqrestore(&endp->queue_lock.slock, | |
2474 | irqs); | |
2475 | } else { | |
2476 | struct list_head *next = endp->urb_more.next; | |
2477 | struct u132_urbq *urbq = list_entry(next, | |
2478 | struct u132_urbq, urb_more); | |
2479 | list_del(next); | |
2480 | *urb_slot = urbq->urb; | |
2481 | spin_unlock_irqrestore(&endp->queue_lock.slock, | |
2482 | irqs); | |
2483 | kfree(urbq); | |
2484 | } urb->error_count = 0; | |
4a00027d | 2485 | usb_hcd_giveback_urb(hcd, urb, status); |
b40f8d39 DW |
2486 | return 0; |
2487 | } else if (list_empty(&endp->urb_more)) { | |
2488 | dev_err(&u132->platform_dev->dev, "urb=%p not found in " | |
2489 | "endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr" | |
2490 | "=%d size=%d next=%04X last=%04X\n", urb, | |
2491 | endp->endp_number, endp, endp->ring->number, | |
2492 | endp->input ? 'I' : ' ', | |
2493 | endp->output ? 'O' : ' ', endp->usb_endp, | |
2494 | endp->usb_addr, endp->queue_size, | |
2495 | endp->queue_next, endp->queue_last); | |
2496 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2497 | return -EINVAL; | |
2498 | } else { | |
e9df41c5 AS |
2499 | int retval; |
2500 | ||
2501 | usb_hcd_unlink_urb_from_ep(u132_to_hcd(u132), urb); | |
2502 | retval = dequeue_from_overflow_chain(u132, endp, | |
b40f8d39 DW |
2503 | urb); |
2504 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2505 | return retval; | |
2506 | } | |
2507 | } | |
d774efea TO |
2508 | } |
2509 | ||
e9df41c5 | 2510 | static int u132_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) |
d774efea | 2511 | { |
b40f8d39 DW |
2512 | struct u132 *u132 = hcd_to_u132(hcd); |
2513 | if (u132->going > 2) { | |
2514 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2515 | , u132->going); | |
2516 | return -ENODEV; | |
2517 | } else { | |
2518 | u8 usb_addr = usb_pipedevice(urb->pipe); | |
2519 | u8 usb_endp = usb_pipeendpoint(urb->pipe); | |
2520 | u8 address = u132->addr[usb_addr].address; | |
2521 | struct u132_udev *udev = &u132->udev[address]; | |
2522 | if (usb_pipein(urb->pipe)) { | |
2523 | u8 endp_number = udev->endp_number_in[usb_endp]; | |
2524 | struct u132_endp *endp = u132->endp[endp_number - 1]; | |
2525 | return u132_endp_urb_dequeue(u132, endp, urb, status); | |
2526 | } else { | |
2527 | u8 endp_number = udev->endp_number_out[usb_endp]; | |
2528 | struct u132_endp *endp = u132->endp[endp_number - 1]; | |
2529 | return u132_endp_urb_dequeue(u132, endp, urb, status); | |
2530 | } | |
2531 | } | |
d774efea TO |
2532 | } |
2533 | ||
2534 | static void u132_endpoint_disable(struct usb_hcd *hcd, | |
b40f8d39 DW |
2535 | struct usb_host_endpoint *hep) |
2536 | { | |
2537 | struct u132 *u132 = hcd_to_u132(hcd); | |
2538 | if (u132->going > 2) { | |
2539 | dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p hep=%p" | |
2540 | ") has been removed %d\n", u132, hcd, hep, | |
2541 | u132->going); | |
2542 | } else { | |
2543 | struct u132_endp *endp = hep->hcpriv; | |
2544 | if (endp) | |
2545 | u132_endp_put_kref(u132, endp); | |
2546 | } | |
d774efea TO |
2547 | } |
2548 | ||
2549 | static int u132_get_frame(struct usb_hcd *hcd) | |
2550 | { | |
b40f8d39 DW |
2551 | struct u132 *u132 = hcd_to_u132(hcd); |
2552 | if (u132->going > 1) { | |
2553 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2554 | , u132->going); | |
2555 | return -ENODEV; | |
2556 | } else if (u132->going > 0) { | |
2557 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2558 | return -ESHUTDOWN; | |
2559 | } else { | |
2560 | int frame = 0; | |
2561 | dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n"); | |
2562 | msleep(100); | |
2563 | return frame; | |
2564 | } | |
d774efea TO |
2565 | } |
2566 | ||
2567 | static int u132_roothub_descriptor(struct u132 *u132, | |
b40f8d39 DW |
2568 | struct usb_hub_descriptor *desc) |
2569 | { | |
2570 | int retval; | |
2571 | u16 temp; | |
2572 | u32 rh_a = -1; | |
2573 | u32 rh_b = -1; | |
2574 | retval = u132_read_pcimem(u132, roothub.a, &rh_a); | |
2575 | if (retval) | |
2576 | return retval; | |
0ce6fe9e | 2577 | desc->bDescriptorType = USB_DT_HUB; |
b40f8d39 DW |
2578 | desc->bPwrOn2PwrGood = (rh_a & RH_A_POTPGT) >> 24; |
2579 | desc->bHubContrCurrent = 0; | |
2580 | desc->bNbrPorts = u132->num_ports; | |
2581 | temp = 1 + (u132->num_ports / 8); | |
2582 | desc->bDescLength = 7 + 2 * temp; | |
a7cf697d | 2583 | temp = HUB_CHAR_COMMON_LPSM | HUB_CHAR_COMMON_OCPM; |
b40f8d39 | 2584 | if (rh_a & RH_A_NPS) |
a7cf697d | 2585 | temp |= HUB_CHAR_NO_LPSM; |
b40f8d39 | 2586 | if (rh_a & RH_A_PSM) |
a7cf697d | 2587 | temp |= HUB_CHAR_INDV_PORT_LPSM; |
b40f8d39 | 2588 | if (rh_a & RH_A_NOCP) |
a7cf697d | 2589 | temp |= HUB_CHAR_NO_OCPM; |
b40f8d39 | 2590 | else if (rh_a & RH_A_OCPM) |
a7cf697d | 2591 | temp |= HUB_CHAR_INDV_PORT_OCPM; |
b40f8d39 DW |
2592 | desc->wHubCharacteristics = cpu_to_le16(temp); |
2593 | retval = u132_read_pcimem(u132, roothub.b, &rh_b); | |
2594 | if (retval) | |
2595 | return retval; | |
dbe79bbe JY |
2596 | memset(desc->u.hs.DeviceRemovable, 0xff, |
2597 | sizeof(desc->u.hs.DeviceRemovable)); | |
2598 | desc->u.hs.DeviceRemovable[0] = rh_b & RH_B_DR; | |
b40f8d39 | 2599 | if (u132->num_ports > 7) { |
dbe79bbe JY |
2600 | desc->u.hs.DeviceRemovable[1] = (rh_b & RH_B_DR) >> 8; |
2601 | desc->u.hs.DeviceRemovable[2] = 0xff; | |
b40f8d39 | 2602 | } else |
dbe79bbe | 2603 | desc->u.hs.DeviceRemovable[1] = 0xff; |
b40f8d39 | 2604 | return 0; |
d774efea TO |
2605 | } |
2606 | ||
2607 | static int u132_roothub_status(struct u132 *u132, __le32 *desc) | |
2608 | { | |
b40f8d39 DW |
2609 | u32 rh_status = -1; |
2610 | int ret_status = u132_read_pcimem(u132, roothub.status, &rh_status); | |
2611 | *desc = cpu_to_le32(rh_status); | |
2612 | return ret_status; | |
d774efea TO |
2613 | } |
2614 | ||
2615 | static int u132_roothub_portstatus(struct u132 *u132, __le32 *desc, u16 wIndex) | |
2616 | { | |
b40f8d39 DW |
2617 | if (wIndex == 0 || wIndex > u132->num_ports) { |
2618 | return -EINVAL; | |
2619 | } else { | |
2620 | int port = wIndex - 1; | |
2621 | u32 rh_portstatus = -1; | |
2622 | int ret_portstatus = u132_read_pcimem(u132, | |
2623 | roothub.portstatus[port], &rh_portstatus); | |
2624 | *desc = cpu_to_le32(rh_portstatus); | |
2625 | if (*(u16 *) (desc + 2)) { | |
2626 | dev_info(&u132->platform_dev->dev, "Port %d Status Chan" | |
2627 | "ge = %08X\n", port, *desc); | |
2628 | } | |
2629 | return ret_portstatus; | |
2630 | } | |
d774efea TO |
2631 | } |
2632 | ||
2633 | ||
2634 | /* this timer value might be vendor-specific ... */ | |
2635 | #define PORT_RESET_HW_MSEC 10 | |
2636 | #define PORT_RESET_MSEC 10 | |
2637 | /* wrap-aware logic morphed from <linux/jiffies.h> */ | |
2638 | #define tick_before(t1, t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0) | |
2639 | static int u132_roothub_portreset(struct u132 *u132, int port_index) | |
2640 | { | |
b40f8d39 DW |
2641 | int retval; |
2642 | u32 fmnumber; | |
2643 | u16 now; | |
2644 | u16 reset_done; | |
2645 | retval = u132_read_pcimem(u132, fmnumber, &fmnumber); | |
2646 | if (retval) | |
2647 | return retval; | |
2648 | now = fmnumber; | |
2649 | reset_done = now + PORT_RESET_MSEC; | |
2650 | do { | |
2651 | u32 portstat; | |
2652 | do { | |
2653 | retval = u132_read_pcimem(u132, | |
2654 | roothub.portstatus[port_index], &portstat); | |
2655 | if (retval) | |
2656 | return retval; | |
2657 | if (RH_PS_PRS & portstat) | |
2658 | continue; | |
2659 | else | |
2660 | break; | |
2661 | } while (tick_before(now, reset_done)); | |
2662 | if (RH_PS_PRS & portstat) | |
2663 | return -ENODEV; | |
2664 | if (RH_PS_CCS & portstat) { | |
2665 | if (RH_PS_PRSC & portstat) { | |
2666 | retval = u132_write_pcimem(u132, | |
2667 | roothub.portstatus[port_index], | |
2668 | RH_PS_PRSC); | |
2669 | if (retval) | |
2670 | return retval; | |
2671 | } | |
2672 | } else | |
2673 | break; /* start the next reset, | |
2674 | sleep till it's probably done */ | |
2675 | retval = u132_write_pcimem(u132, roothub.portstatus[port_index], | |
2676 | RH_PS_PRS); | |
2677 | if (retval) | |
2678 | return retval; | |
2679 | msleep(PORT_RESET_HW_MSEC); | |
2680 | retval = u132_read_pcimem(u132, fmnumber, &fmnumber); | |
2681 | if (retval) | |
2682 | return retval; | |
2683 | now = fmnumber; | |
2684 | } while (tick_before(now, reset_done)); | |
2685 | return 0; | |
d774efea TO |
2686 | } |
2687 | ||
2688 | static int u132_roothub_setportfeature(struct u132 *u132, u16 wValue, | |
b40f8d39 DW |
2689 | u16 wIndex) |
2690 | { | |
2691 | if (wIndex == 0 || wIndex > u132->num_ports) { | |
2692 | return -EINVAL; | |
2693 | } else { | |
b40f8d39 DW |
2694 | int port_index = wIndex - 1; |
2695 | struct u132_port *port = &u132->port[port_index]; | |
2696 | port->Status &= ~(1 << wValue); | |
2697 | switch (wValue) { | |
2698 | case USB_PORT_FEAT_SUSPEND: | |
8602b08a SK |
2699 | return u132_write_pcimem(u132, |
2700 | roothub.portstatus[port_index], RH_PS_PSS); | |
b40f8d39 | 2701 | case USB_PORT_FEAT_POWER: |
8602b08a SK |
2702 | return u132_write_pcimem(u132, |
2703 | roothub.portstatus[port_index], RH_PS_PPS); | |
b40f8d39 | 2704 | case USB_PORT_FEAT_RESET: |
8602b08a | 2705 | return u132_roothub_portreset(u132, port_index); |
b40f8d39 DW |
2706 | default: |
2707 | return -EPIPE; | |
2708 | } | |
2709 | } | |
d774efea TO |
2710 | } |
2711 | ||
2712 | static int u132_roothub_clearportfeature(struct u132 *u132, u16 wValue, | |
b40f8d39 DW |
2713 | u16 wIndex) |
2714 | { | |
2715 | if (wIndex == 0 || wIndex > u132->num_ports) { | |
2716 | return -EINVAL; | |
2717 | } else { | |
2718 | int port_index = wIndex - 1; | |
2719 | u32 temp; | |
b40f8d39 DW |
2720 | struct u132_port *port = &u132->port[port_index]; |
2721 | port->Status &= ~(1 << wValue); | |
2722 | switch (wValue) { | |
2723 | case USB_PORT_FEAT_ENABLE: | |
2724 | temp = RH_PS_CCS; | |
2725 | break; | |
2726 | case USB_PORT_FEAT_C_ENABLE: | |
2727 | temp = RH_PS_PESC; | |
2728 | break; | |
2729 | case USB_PORT_FEAT_SUSPEND: | |
2730 | temp = RH_PS_POCI; | |
2731 | if ((u132->hc_control & OHCI_CTRL_HCFS) | |
2732 | != OHCI_USB_OPER) { | |
2733 | dev_err(&u132->platform_dev->dev, "TODO resume_" | |
2734 | "root_hub\n"); | |
2735 | } | |
2736 | break; | |
2737 | case USB_PORT_FEAT_C_SUSPEND: | |
2738 | temp = RH_PS_PSSC; | |
2739 | break; | |
2740 | case USB_PORT_FEAT_POWER: | |
2741 | temp = RH_PS_LSDA; | |
2742 | break; | |
2743 | case USB_PORT_FEAT_C_CONNECTION: | |
2744 | temp = RH_PS_CSC; | |
2745 | break; | |
2746 | case USB_PORT_FEAT_C_OVER_CURRENT: | |
2747 | temp = RH_PS_OCIC; | |
2748 | break; | |
2749 | case USB_PORT_FEAT_C_RESET: | |
2750 | temp = RH_PS_PRSC; | |
2751 | break; | |
2752 | default: | |
2753 | return -EPIPE; | |
2754 | } | |
8602b08a SK |
2755 | return u132_write_pcimem(u132, roothub.portstatus[port_index], |
2756 | temp); | |
b40f8d39 | 2757 | } |
d774efea TO |
2758 | } |
2759 | ||
2760 | ||
2761 | /* the virtual root hub timer IRQ checks for hub status*/ | |
2762 | static int u132_hub_status_data(struct usb_hcd *hcd, char *buf) | |
2763 | { | |
b40f8d39 DW |
2764 | struct u132 *u132 = hcd_to_u132(hcd); |
2765 | if (u132->going > 1) { | |
2766 | dev_err(&u132->platform_dev->dev, "device hcd=%p has been remov" | |
2767 | "ed %d\n", hcd, u132->going); | |
2768 | return -ENODEV; | |
2769 | } else if (u132->going > 0) { | |
2770 | dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" | |
2771 | "ed\n", hcd); | |
2772 | return -ESHUTDOWN; | |
2773 | } else { | |
2774 | int i, changed = 0, length = 1; | |
2775 | if (u132->flags & OHCI_QUIRK_AMD756) { | |
2776 | if ((u132->hc_roothub_a & RH_A_NDP) > MAX_ROOT_PORTS) { | |
2777 | dev_err(&u132->platform_dev->dev, "bogus NDP, r" | |
2778 | "ereads as NDP=%d\n", | |
2779 | u132->hc_roothub_a & RH_A_NDP); | |
2780 | goto done; | |
2781 | } | |
2782 | } | |
2783 | if (u132->hc_roothub_status & (RH_HS_LPSC | RH_HS_OCIC)) | |
2784 | buf[0] = changed = 1; | |
2785 | else | |
2786 | buf[0] = 0; | |
2787 | if (u132->num_ports > 7) { | |
2788 | buf[1] = 0; | |
2789 | length++; | |
2790 | } | |
2791 | for (i = 0; i < u132->num_ports; i++) { | |
2792 | if (u132->hc_roothub_portstatus[i] & (RH_PS_CSC | | |
2793 | RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC | | |
2794 | RH_PS_PRSC)) { | |
2795 | changed = 1; | |
2796 | if (i < 7) | |
2797 | buf[0] |= 1 << (i + 1); | |
2798 | else | |
2799 | buf[1] |= 1 << (i - 7); | |
2800 | continue; | |
2801 | } | |
2802 | if (!(u132->hc_roothub_portstatus[i] & RH_PS_CCS)) | |
2803 | continue; | |
2804 | ||
2805 | if ((u132->hc_roothub_portstatus[i] & RH_PS_PSS)) | |
2806 | continue; | |
2807 | } | |
2808 | done: | |
2809 | return changed ? length : 0; | |
2810 | } | |
d774efea TO |
2811 | } |
2812 | ||
2813 | static int u132_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, | |
b40f8d39 DW |
2814 | u16 wIndex, char *buf, u16 wLength) |
2815 | { | |
2816 | struct u132 *u132 = hcd_to_u132(hcd); | |
2817 | if (u132->going > 1) { | |
2818 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2819 | , u132->going); | |
2820 | return -ENODEV; | |
2821 | } else if (u132->going > 0) { | |
2822 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2823 | return -ESHUTDOWN; | |
2824 | } else { | |
2825 | int retval = 0; | |
2826 | mutex_lock(&u132->sw_lock); | |
2827 | switch (typeReq) { | |
2828 | case ClearHubFeature: | |
2829 | switch (wValue) { | |
2830 | case C_HUB_OVER_CURRENT: | |
2831 | case C_HUB_LOCAL_POWER: | |
2832 | break; | |
2833 | default: | |
2834 | goto stall; | |
2835 | } | |
2836 | break; | |
2837 | case SetHubFeature: | |
2838 | switch (wValue) { | |
2839 | case C_HUB_OVER_CURRENT: | |
2840 | case C_HUB_LOCAL_POWER: | |
2841 | break; | |
2842 | default: | |
2843 | goto stall; | |
2844 | } | |
2845 | break; | |
2846 | case ClearPortFeature:{ | |
2847 | retval = u132_roothub_clearportfeature(u132, | |
2848 | wValue, wIndex); | |
2849 | if (retval) | |
2850 | goto error; | |
2851 | break; | |
2852 | } | |
2853 | case GetHubDescriptor:{ | |
2854 | retval = u132_roothub_descriptor(u132, | |
2855 | (struct usb_hub_descriptor *)buf); | |
2856 | if (retval) | |
2857 | goto error; | |
2858 | break; | |
2859 | } | |
2860 | case GetHubStatus:{ | |
2861 | retval = u132_roothub_status(u132, | |
2862 | (__le32 *) buf); | |
2863 | if (retval) | |
2864 | goto error; | |
2865 | break; | |
2866 | } | |
2867 | case GetPortStatus:{ | |
2868 | retval = u132_roothub_portstatus(u132, | |
2869 | (__le32 *) buf, wIndex); | |
2870 | if (retval) | |
2871 | goto error; | |
2872 | break; | |
2873 | } | |
2874 | case SetPortFeature:{ | |
2875 | retval = u132_roothub_setportfeature(u132, | |
2876 | wValue, wIndex); | |
2877 | if (retval) | |
2878 | goto error; | |
2879 | break; | |
2880 | } | |
2881 | default: | |
2882 | goto stall; | |
2883 | error: | |
2884 | u132_disable(u132); | |
2885 | u132->going = 1; | |
2886 | break; | |
2887 | stall: | |
2888 | retval = -EPIPE; | |
2889 | break; | |
2890 | } | |
2891 | mutex_unlock(&u132->sw_lock); | |
2892 | return retval; | |
2893 | } | |
d774efea TO |
2894 | } |
2895 | ||
2896 | static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num) | |
2897 | { | |
b40f8d39 DW |
2898 | struct u132 *u132 = hcd_to_u132(hcd); |
2899 | if (u132->going > 1) { | |
2900 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2901 | , u132->going); | |
2902 | return -ENODEV; | |
2903 | } else if (u132->going > 0) { | |
2904 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2905 | return -ESHUTDOWN; | |
2906 | } else | |
2907 | return 0; | |
d774efea TO |
2908 | } |
2909 | ||
d774efea TO |
2910 | |
2911 | #ifdef CONFIG_PM | |
d774efea TO |
2912 | static int u132_bus_suspend(struct usb_hcd *hcd) |
2913 | { | |
b40f8d39 DW |
2914 | struct u132 *u132 = hcd_to_u132(hcd); |
2915 | if (u132->going > 1) { | |
2916 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2917 | , u132->going); | |
2918 | return -ENODEV; | |
2919 | } else if (u132->going > 0) { | |
2920 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2921 | return -ESHUTDOWN; | |
2922 | } else | |
2923 | return 0; | |
d774efea TO |
2924 | } |
2925 | ||
2926 | static int u132_bus_resume(struct usb_hcd *hcd) | |
2927 | { | |
b40f8d39 DW |
2928 | struct u132 *u132 = hcd_to_u132(hcd); |
2929 | if (u132->going > 1) { | |
2930 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2931 | , u132->going); | |
2932 | return -ENODEV; | |
2933 | } else if (u132->going > 0) { | |
2934 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2935 | return -ESHUTDOWN; | |
2936 | } else | |
2937 | return 0; | |
d774efea TO |
2938 | } |
2939 | ||
2940 | #else | |
d774efea TO |
2941 | #define u132_bus_suspend NULL |
2942 | #define u132_bus_resume NULL | |
2943 | #endif | |
2944 | static struct hc_driver u132_hc_driver = { | |
b40f8d39 DW |
2945 | .description = hcd_name, |
2946 | .hcd_priv_size = sizeof(struct u132), | |
2947 | .irq = NULL, | |
2948 | .flags = HCD_USB11 | HCD_MEMORY, | |
2949 | .reset = u132_hcd_reset, | |
2950 | .start = u132_hcd_start, | |
b40f8d39 DW |
2951 | .stop = u132_hcd_stop, |
2952 | .urb_enqueue = u132_urb_enqueue, | |
2953 | .urb_dequeue = u132_urb_dequeue, | |
2954 | .endpoint_disable = u132_endpoint_disable, | |
2955 | .get_frame_number = u132_get_frame, | |
2956 | .hub_status_data = u132_hub_status_data, | |
2957 | .hub_control = u132_hub_control, | |
2958 | .bus_suspend = u132_bus_suspend, | |
2959 | .bus_resume = u132_bus_resume, | |
2960 | .start_port_reset = u132_start_port_reset, | |
d774efea TO |
2961 | }; |
2962 | ||
2963 | /* | |
2964 | * This function may be called by the USB core whilst the "usb_all_devices_rwsem" | |
2965 | * is held for writing, thus this module must not call usb_remove_hcd() | |
2966 | * synchronously - but instead should immediately stop activity to the | |
0779bf2d | 2967 | * device and asynchronously call usb_remove_hcd() |
d774efea | 2968 | */ |
fb4e98ab | 2969 | static int u132_remove(struct platform_device *pdev) |
d774efea | 2970 | { |
b40f8d39 DW |
2971 | struct usb_hcd *hcd = platform_get_drvdata(pdev); |
2972 | if (hcd) { | |
2973 | struct u132 *u132 = hcd_to_u132(hcd); | |
2974 | if (u132->going++ > 1) { | |
2975 | dev_err(&u132->platform_dev->dev, "already being remove" | |
4b87361d | 2976 | "d\n"); |
b40f8d39 DW |
2977 | return -ENODEV; |
2978 | } else { | |
2979 | int rings = MAX_U132_RINGS; | |
2980 | int endps = MAX_U132_ENDPS; | |
2981 | dev_err(&u132->platform_dev->dev, "removing device u132" | |
4b87361d | 2982 | ".%d\n", u132->sequence_num); |
b40f8d39 DW |
2983 | msleep(100); |
2984 | mutex_lock(&u132->sw_lock); | |
2985 | u132_monitor_cancel_work(u132); | |
2986 | while (rings-- > 0) { | |
2987 | struct u132_ring *ring = &u132->ring[rings]; | |
2988 | u132_ring_cancel_work(u132, ring); | |
2989 | } while (endps-- > 0) { | |
2990 | struct u132_endp *endp = u132->endp[endps]; | |
2991 | if (endp) | |
2992 | u132_endp_cancel_work(u132, endp); | |
2993 | } | |
2994 | u132->going += 1; | |
2995 | printk(KERN_INFO "removing device u132.%d\n", | |
2996 | u132->sequence_num); | |
2997 | mutex_unlock(&u132->sw_lock); | |
2998 | usb_remove_hcd(hcd); | |
2999 | u132_u132_put_kref(u132); | |
3000 | return 0; | |
3001 | } | |
3002 | } else | |
3003 | return 0; | |
d774efea TO |
3004 | } |
3005 | ||
3006 | static void u132_initialise(struct u132 *u132, struct platform_device *pdev) | |
3007 | { | |
b40f8d39 DW |
3008 | int rings = MAX_U132_RINGS; |
3009 | int ports = MAX_U132_PORTS; | |
3010 | int addrs = MAX_U132_ADDRS; | |
3011 | int udevs = MAX_U132_UDEVS; | |
3012 | int endps = MAX_U132_ENDPS; | |
d4f09e28 | 3013 | u132->board = dev_get_platdata(&pdev->dev); |
b40f8d39 DW |
3014 | u132->platform_dev = pdev; |
3015 | u132->power = 0; | |
3016 | u132->reset = 0; | |
3017 | mutex_init(&u132->sw_lock); | |
50d8ca9b | 3018 | mutex_init(&u132->scheduler_lock); |
b40f8d39 DW |
3019 | while (rings-- > 0) { |
3020 | struct u132_ring *ring = &u132->ring[rings]; | |
3021 | ring->u132 = u132; | |
3022 | ring->number = rings + 1; | |
3023 | ring->length = 0; | |
3024 | ring->curr_endp = NULL; | |
3025 | INIT_DELAYED_WORK(&ring->scheduler, | |
c4028958 | 3026 | u132_hcd_ring_work_scheduler); |
b40f8d39 DW |
3027 | } |
3028 | mutex_lock(&u132->sw_lock); | |
3029 | INIT_DELAYED_WORK(&u132->monitor, u132_hcd_monitor_work); | |
3030 | while (ports-- > 0) { | |
3031 | struct u132_port *port = &u132->port[ports]; | |
3032 | port->u132 = u132; | |
3033 | port->reset = 0; | |
3034 | port->enable = 0; | |
3035 | port->power = 0; | |
3036 | port->Status = 0; | |
3037 | } | |
3038 | while (addrs-- > 0) { | |
3039 | struct u132_addr *addr = &u132->addr[addrs]; | |
3040 | addr->address = 0; | |
3041 | } | |
3042 | while (udevs-- > 0) { | |
3043 | struct u132_udev *udev = &u132->udev[udevs]; | |
3044 | int i = ARRAY_SIZE(udev->endp_number_in); | |
3045 | int o = ARRAY_SIZE(udev->endp_number_out); | |
3046 | udev->usb_device = NULL; | |
3047 | udev->udev_number = 0; | |
3048 | udev->usb_addr = 0; | |
3049 | udev->portnumber = 0; | |
3050 | while (i-- > 0) | |
3051 | udev->endp_number_in[i] = 0; | |
3052 | ||
3053 | while (o-- > 0) | |
3054 | udev->endp_number_out[o] = 0; | |
3055 | ||
3056 | } | |
3057 | while (endps-- > 0) | |
3058 | u132->endp[endps] = NULL; | |
3059 | ||
3060 | mutex_unlock(&u132->sw_lock); | |
d774efea TO |
3061 | } |
3062 | ||
41ac7b3a | 3063 | static int u132_probe(struct platform_device *pdev) |
d774efea | 3064 | { |
b40f8d39 DW |
3065 | struct usb_hcd *hcd; |
3066 | int retval; | |
3067 | u32 control; | |
3068 | u32 rh_a = -1; | |
3069 | u32 num_ports; | |
3070 | ||
3071 | msleep(100); | |
3072 | if (u132_exiting > 0) | |
3073 | return -ENODEV; | |
3074 | ||
3075 | retval = ftdi_write_pcimem(pdev, intrdisable, OHCI_INTR_MIE); | |
3076 | if (retval) | |
3077 | return retval; | |
3078 | retval = ftdi_read_pcimem(pdev, control, &control); | |
3079 | if (retval) | |
3080 | return retval; | |
3081 | retval = ftdi_read_pcimem(pdev, roothub.a, &rh_a); | |
3082 | if (retval) | |
3083 | return retval; | |
3084 | num_ports = rh_a & RH_A_NDP; /* refuse to confuse usbcore */ | |
3085 | if (pdev->dev.dma_mask) | |
3086 | return -EINVAL; | |
3087 | ||
7071a3ce | 3088 | hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, dev_name(&pdev->dev)); |
b40f8d39 DW |
3089 | if (!hcd) { |
3090 | printk(KERN_ERR "failed to create the usb hcd struct for U132\n" | |
3091 | ); | |
3092 | ftdi_elan_gone_away(pdev); | |
3093 | return -ENOMEM; | |
3094 | } else { | |
b40f8d39 | 3095 | struct u132 *u132 = hcd_to_u132(hcd); |
6641445c | 3096 | retval = 0; |
b40f8d39 DW |
3097 | hcd->rsrc_start = 0; |
3098 | mutex_lock(&u132_module_lock); | |
3099 | list_add_tail(&u132->u132_list, &u132_static_list); | |
3100 | u132->sequence_num = ++u132_instances; | |
3101 | mutex_unlock(&u132_module_lock); | |
3102 | u132_u132_init_kref(u132); | |
3103 | u132_initialise(u132, pdev); | |
3104 | hcd->product_desc = "ELAN U132 Host Controller"; | |
3105 | retval = usb_add_hcd(hcd, 0, 0); | |
3106 | if (retval != 0) { | |
3107 | dev_err(&u132->platform_dev->dev, "init error %d\n", | |
3108 | retval); | |
3109 | u132_u132_put_kref(u132); | |
3110 | return retval; | |
3111 | } else { | |
3c9740a1 | 3112 | device_wakeup_enable(hcd->self.controller); |
b40f8d39 DW |
3113 | u132_monitor_queue_work(u132, 100); |
3114 | return 0; | |
3115 | } | |
3116 | } | |
d774efea TO |
3117 | } |
3118 | ||
3119 | ||
3120 | #ifdef CONFIG_PM | |
84ebc102 AS |
3121 | /* |
3122 | * for this device there's no useful distinction between the controller | |
ceb6c9c8 | 3123 | * and its root hub. |
84ebc102 | 3124 | */ |
d774efea TO |
3125 | static int u132_suspend(struct platform_device *pdev, pm_message_t state) |
3126 | { | |
b40f8d39 DW |
3127 | struct usb_hcd *hcd = platform_get_drvdata(pdev); |
3128 | struct u132 *u132 = hcd_to_u132(hcd); | |
3129 | if (u132->going > 1) { | |
3130 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
3131 | , u132->going); | |
3132 | return -ENODEV; | |
3133 | } else if (u132->going > 0) { | |
3134 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
3135 | return -ESHUTDOWN; | |
3136 | } else { | |
038eb0ea | 3137 | int retval = 0, ports; |
3a2d5b70 RW |
3138 | |
3139 | switch (state.event) { | |
3140 | case PM_EVENT_FREEZE: | |
b40f8d39 | 3141 | retval = u132_bus_suspend(hcd); |
3a2d5b70 RW |
3142 | break; |
3143 | case PM_EVENT_SUSPEND: | |
3144 | case PM_EVENT_HIBERNATE: | |
038eb0ea | 3145 | ports = MAX_U132_PORTS; |
b40f8d39 DW |
3146 | while (ports-- > 0) { |
3147 | port_power(u132, ports, 0); | |
3148 | } | |
3a2d5b70 RW |
3149 | break; |
3150 | } | |
b40f8d39 DW |
3151 | return retval; |
3152 | } | |
d774efea TO |
3153 | } |
3154 | ||
3155 | static int u132_resume(struct platform_device *pdev) | |
3156 | { | |
b40f8d39 DW |
3157 | struct usb_hcd *hcd = platform_get_drvdata(pdev); |
3158 | struct u132 *u132 = hcd_to_u132(hcd); | |
3159 | if (u132->going > 1) { | |
3160 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
3161 | , u132->going); | |
3162 | return -ENODEV; | |
3163 | } else if (u132->going > 0) { | |
3164 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
3165 | return -ESHUTDOWN; | |
3166 | } else { | |
3167 | int retval = 0; | |
70a1c9e0 | 3168 | if (!u132->port[0].power) { |
b40f8d39 DW |
3169 | int ports = MAX_U132_PORTS; |
3170 | while (ports-- > 0) { | |
3171 | port_power(u132, ports, 1); | |
3172 | } | |
3173 | retval = 0; | |
3174 | } else { | |
3175 | retval = u132_bus_resume(hcd); | |
3176 | } | |
3177 | return retval; | |
3178 | } | |
d774efea TO |
3179 | } |
3180 | ||
3181 | #else | |
3182 | #define u132_suspend NULL | |
3183 | #define u132_resume NULL | |
3184 | #endif | |
3185 | /* | |
0779bf2d | 3186 | * this driver is loaded explicitly by ftdi_u132 |
d774efea TO |
3187 | * |
3188 | * the platform_driver struct is static because it is per type of module | |
3189 | */ | |
3190 | static struct platform_driver u132_platform_driver = { | |
b40f8d39 | 3191 | .probe = u132_probe, |
7690417d | 3192 | .remove = u132_remove, |
b40f8d39 DW |
3193 | .suspend = u132_suspend, |
3194 | .resume = u132_resume, | |
3195 | .driver = { | |
a458677d | 3196 | .name = hcd_name, |
b40f8d39 | 3197 | }, |
d774efea TO |
3198 | }; |
3199 | static int __init u132_hcd_init(void) | |
3200 | { | |
b40f8d39 DW |
3201 | int retval; |
3202 | INIT_LIST_HEAD(&u132_static_list); | |
3203 | u132_instances = 0; | |
3204 | u132_exiting = 0; | |
3205 | mutex_init(&u132_module_lock); | |
3206 | if (usb_disabled()) | |
3207 | return -ENODEV; | |
654d121a | 3208 | printk(KERN_INFO "driver %s\n", hcd_name); |
b40f8d39 DW |
3209 | workqueue = create_singlethread_workqueue("u132"); |
3210 | retval = platform_driver_register(&u132_platform_driver); | |
3211 | return retval; | |
d774efea TO |
3212 | } |
3213 | ||
3214 | ||
3215 | module_init(u132_hcd_init); | |
3216 | static void __exit u132_hcd_exit(void) | |
3217 | { | |
b40f8d39 DW |
3218 | struct u132 *u132; |
3219 | struct u132 *temp; | |
3220 | mutex_lock(&u132_module_lock); | |
3221 | u132_exiting += 1; | |
3222 | mutex_unlock(&u132_module_lock); | |
3223 | list_for_each_entry_safe(u132, temp, &u132_static_list, u132_list) { | |
3224 | platform_device_unregister(u132->platform_dev); | |
3225 | } | |
3226 | platform_driver_unregister(&u132_platform_driver); | |
3227 | printk(KERN_INFO "u132-hcd driver deregistered\n"); | |
3228 | wait_event(u132_hcd_wait, u132_instances == 0); | |
3229 | flush_workqueue(workqueue); | |
3230 | destroy_workqueue(workqueue); | |
d774efea TO |
3231 | } |
3232 | ||
3233 | ||
3234 | module_exit(u132_hcd_exit); | |
3235 | MODULE_LICENSE("GPL"); | |
f4fce61d | 3236 | MODULE_ALIAS("platform:u132_hcd"); |