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5fd54ace | 1 | // SPDX-License-Identifier: GPL-2.0 |
d774efea TO |
2 | /* |
3 | * Host Controller Driver for the Elan Digital Systems U132 adapter | |
4 | * | |
5 | * Copyright(C) 2006 Elan Digital Systems Limited | |
6 | * http://www.elandigitalsystems.com | |
7 | * | |
8 | * Author and Maintainer - Tony Olech - Elan Digital Systems | |
9 | * tony.olech@elandigitalsystems.com | |
10 | * | |
d774efea TO |
11 | * This driver was written by Tony Olech(tony.olech@elandigitalsystems.com) |
12 | * based on various USB host drivers in the 2.6.15 linux kernel | |
13 | * with constant reference to the 3rd Edition of Linux Device Drivers | |
14 | * published by O'Reilly | |
15 | * | |
16 | * The U132 adapter is a USB to CardBus adapter specifically designed | |
17 | * for PC cards that contain an OHCI host controller. Typical PC cards | |
18 | * are the Orange Mobile 3G Option GlobeTrotter Fusion card. | |
19 | * | |
20 | * The U132 adapter will *NOT *work with PC cards that do not contain | |
21 | * an OHCI controller. A simple way to test whether a PC card has an | |
22 | * OHCI controller as an interface is to insert the PC card directly | |
23 | * into a laptop(or desktop) with a CardBus slot and if "lspci" shows | |
24 | * a new USB controller and "lsusb -v" shows a new OHCI Host Controller | |
25 | * then there is a good chance that the U132 adapter will support the | |
26 | * PC card.(you also need the specific client driver for the PC card) | |
27 | * | |
28 | * Please inform the Author and Maintainer about any PC cards that | |
29 | * contain OHCI Host Controller and work when directly connected to | |
30 | * an embedded CardBus slot but do not work when they are connected | |
31 | * via an ELAN U132 adapter. | |
32 | * | |
33 | */ | |
d774efea TO |
34 | #include <linux/kernel.h> |
35 | #include <linux/module.h> | |
36 | #include <linux/moduleparam.h> | |
37 | #include <linux/delay.h> | |
38 | #include <linux/ioport.h> | |
4b87361d | 39 | #include <linux/pci_ids.h> |
d774efea TO |
40 | #include <linux/sched.h> |
41 | #include <linux/slab.h> | |
d774efea TO |
42 | #include <linux/errno.h> |
43 | #include <linux/init.h> | |
44 | #include <linux/timer.h> | |
45 | #include <linux/list.h> | |
46 | #include <linux/interrupt.h> | |
47 | #include <linux/usb.h> | |
27729aad | 48 | #include <linux/usb/hcd.h> |
d774efea TO |
49 | #include <linux/workqueue.h> |
50 | #include <linux/platform_device.h> | |
d2066eb6 | 51 | #include <linux/mutex.h> |
d774efea TO |
52 | #include <asm/io.h> |
53 | #include <asm/irq.h> | |
d774efea | 54 | #include <asm/byteorder.h> |
47f8468e DB |
55 | |
56 | /* FIXME ohci.h is ONLY for internal use by the OHCI driver. | |
57 | * If you're going to try stuff like this, you need to split | |
58 | * out shareable stuff (register declarations?) into its own | |
59 | * file, maybe name <linux/usb/ohci.h> | |
60 | */ | |
61 | ||
d774efea TO |
62 | #include "ohci.h" |
63 | #define OHCI_CONTROL_INIT OHCI_CTRL_CBSR | |
64 | #define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \ | |
b40f8d39 | 65 | OHCI_INTR_WDH) |
d774efea TO |
66 | MODULE_AUTHOR("Tony Olech - Elan Digital Systems Limited"); |
67 | MODULE_DESCRIPTION("U132 USB Host Controller Driver"); | |
68 | MODULE_LICENSE("GPL"); | |
69 | #define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444) | |
70 | INT_MODULE_PARM(testing, 0); | |
71 | /* Some boards misreport power switching/overcurrent*/ | |
900937c0 | 72 | static bool distrust_firmware = true; |
d774efea TO |
73 | module_param(distrust_firmware, bool, 0); |
74 | MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren" | |
b40f8d39 | 75 | "t setup"); |
27a3de4c | 76 | static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait); |
d774efea TO |
77 | /* |
78 | * u132_module_lock exists to protect access to global variables | |
79 | * | |
80 | */ | |
d2066eb6 | 81 | static struct mutex u132_module_lock; |
b40f8d39 DW |
82 | static int u132_exiting; |
83 | static int u132_instances; | |
d774efea TO |
84 | static struct list_head u132_static_list; |
85 | /* | |
86 | * end of the global variables protected by u132_module_lock | |
87 | */ | |
88 | static struct workqueue_struct *workqueue; | |
89 | #define MAX_U132_PORTS 7 | |
90 | #define MAX_U132_ADDRS 128 | |
91 | #define MAX_U132_UDEVS 4 | |
92 | #define MAX_U132_ENDPS 100 | |
93 | #define MAX_U132_RINGS 4 | |
94 | static const char *cc_to_text[16] = { | |
b40f8d39 DW |
95 | "No Error ", |
96 | "CRC Error ", | |
97 | "Bit Stuff ", | |
98 | "Data Togg ", | |
99 | "Stall ", | |
100 | "DevNotResp ", | |
101 | "PIDCheck ", | |
102 | "UnExpPID ", | |
103 | "DataOver ", | |
104 | "DataUnder ", | |
105 | "(for hw) ", | |
106 | "(for hw) ", | |
107 | "BufferOver ", | |
108 | "BuffUnder ", | |
109 | "(for HCD) ", | |
110 | "(for HCD) " | |
d774efea TO |
111 | }; |
112 | struct u132_port { | |
b40f8d39 DW |
113 | struct u132 *u132; |
114 | int reset; | |
115 | int enable; | |
116 | int power; | |
117 | int Status; | |
d774efea TO |
118 | }; |
119 | struct u132_addr { | |
b40f8d39 | 120 | u8 address; |
d774efea TO |
121 | }; |
122 | struct u132_udev { | |
b40f8d39 DW |
123 | struct kref kref; |
124 | struct usb_device *usb_device; | |
125 | u8 enumeration; | |
126 | u8 udev_number; | |
127 | u8 usb_addr; | |
128 | u8 portnumber; | |
129 | u8 endp_number_in[16]; | |
130 | u8 endp_number_out[16]; | |
d774efea TO |
131 | }; |
132 | #define ENDP_QUEUE_SHIFT 3 | |
133 | #define ENDP_QUEUE_SIZE (1<<ENDP_QUEUE_SHIFT) | |
134 | #define ENDP_QUEUE_MASK (ENDP_QUEUE_SIZE-1) | |
135 | struct u132_urbq { | |
b40f8d39 DW |
136 | struct list_head urb_more; |
137 | struct urb *urb; | |
d774efea TO |
138 | }; |
139 | struct u132_spin { | |
b40f8d39 | 140 | spinlock_t slock; |
d774efea TO |
141 | }; |
142 | struct u132_endp { | |
b40f8d39 DW |
143 | struct kref kref; |
144 | u8 udev_number; | |
145 | u8 endp_number; | |
146 | u8 usb_addr; | |
147 | u8 usb_endp; | |
148 | struct u132 *u132; | |
149 | struct list_head endp_ring; | |
150 | struct u132_ring *ring; | |
151 | unsigned toggle_bits:2; | |
152 | unsigned active:1; | |
153 | unsigned delayed:1; | |
154 | unsigned input:1; | |
155 | unsigned output:1; | |
156 | unsigned pipetype:2; | |
157 | unsigned dequeueing:1; | |
158 | unsigned edset_flush:1; | |
159 | unsigned spare_bits:14; | |
160 | unsigned long jiffies; | |
161 | struct usb_host_endpoint *hep; | |
162 | struct u132_spin queue_lock; | |
163 | u16 queue_size; | |
164 | u16 queue_last; | |
165 | u16 queue_next; | |
166 | struct urb *urb_list[ENDP_QUEUE_SIZE]; | |
167 | struct list_head urb_more; | |
168 | struct delayed_work scheduler; | |
d774efea TO |
169 | }; |
170 | struct u132_ring { | |
b40f8d39 DW |
171 | unsigned in_use:1; |
172 | unsigned length:7; | |
173 | u8 number; | |
174 | struct u132 *u132; | |
175 | struct u132_endp *curr_endp; | |
176 | struct delayed_work scheduler; | |
d774efea | 177 | }; |
d774efea | 178 | struct u132 { |
b40f8d39 DW |
179 | struct kref kref; |
180 | struct list_head u132_list; | |
181 | struct mutex sw_lock; | |
50d8ca9b | 182 | struct mutex scheduler_lock; |
b40f8d39 DW |
183 | struct u132_platform_data *board; |
184 | struct platform_device *platform_dev; | |
185 | struct u132_ring ring[MAX_U132_RINGS]; | |
186 | int sequence_num; | |
187 | int going; | |
188 | int power; | |
189 | int reset; | |
190 | int num_ports; | |
191 | u32 hc_control; | |
192 | u32 hc_fminterval; | |
193 | u32 hc_roothub_status; | |
194 | u32 hc_roothub_a; | |
195 | u32 hc_roothub_portstatus[MAX_ROOT_PORTS]; | |
196 | int flags; | |
197 | unsigned long next_statechange; | |
198 | struct delayed_work monitor; | |
199 | int num_endpoints; | |
200 | struct u132_addr addr[MAX_U132_ADDRS]; | |
201 | struct u132_udev udev[MAX_U132_UDEVS]; | |
202 | struct u132_port port[MAX_U132_PORTS]; | |
203 | struct u132_endp *endp[MAX_U132_ENDPS]; | |
d774efea | 204 | }; |
9ce8540c | 205 | |
d774efea | 206 | /* |
0779bf2d | 207 | * these cannot be inlines because we need the structure offset!! |
d774efea TO |
208 | * Does anyone have a better way????? |
209 | */ | |
4b87361d | 210 | #define ftdi_read_pcimem(pdev, member, data) usb_ftdi_elan_read_pcimem(pdev, \ |
b40f8d39 | 211 | offsetof(struct ohci_regs, member), 0, data); |
4b87361d | 212 | #define ftdi_write_pcimem(pdev, member, data) usb_ftdi_elan_write_pcimem(pdev, \ |
b40f8d39 | 213 | offsetof(struct ohci_regs, member), 0, data); |
d774efea | 214 | #define u132_read_pcimem(u132, member, data) \ |
b40f8d39 DW |
215 | usb_ftdi_elan_read_pcimem(u132->platform_dev, offsetof(struct \ |
216 | ohci_regs, member), 0, data); | |
d774efea | 217 | #define u132_write_pcimem(u132, member, data) \ |
b40f8d39 DW |
218 | usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \ |
219 | ohci_regs, member), 0, data); | |
d774efea TO |
220 | static inline struct u132 *udev_to_u132(struct u132_udev *udev) |
221 | { | |
b40f8d39 DW |
222 | u8 udev_number = udev->udev_number; |
223 | return container_of(udev, struct u132, udev[udev_number]); | |
d774efea TO |
224 | } |
225 | ||
226 | static inline struct u132 *hcd_to_u132(struct usb_hcd *hcd) | |
227 | { | |
b40f8d39 | 228 | return (struct u132 *)(hcd->hcd_priv); |
d774efea TO |
229 | } |
230 | ||
231 | static inline struct usb_hcd *u132_to_hcd(struct u132 *u132) | |
232 | { | |
b40f8d39 | 233 | return container_of((void *)u132, struct usb_hcd, hcd_priv); |
d774efea TO |
234 | } |
235 | ||
236 | static inline void u132_disable(struct u132 *u132) | |
237 | { | |
b40f8d39 | 238 | u132_to_hcd(u132)->state = HC_STATE_HALT; |
d774efea TO |
239 | } |
240 | ||
241 | ||
242 | #define kref_to_u132(d) container_of(d, struct u132, kref) | |
243 | #define kref_to_u132_endp(d) container_of(d, struct u132_endp, kref) | |
244 | #define kref_to_u132_udev(d) container_of(d, struct u132_udev, kref) | |
245 | #include "../misc/usb_u132.h" | |
246 | static const char hcd_name[] = "u132_hcd"; | |
247 | #define PORT_C_MASK ((USB_PORT_STAT_C_CONNECTION | USB_PORT_STAT_C_ENABLE | \ | |
b40f8d39 DW |
248 | USB_PORT_STAT_C_SUSPEND | USB_PORT_STAT_C_OVERCURRENT | \ |
249 | USB_PORT_STAT_C_RESET) << 16) | |
d774efea TO |
250 | static void u132_hcd_delete(struct kref *kref) |
251 | { | |
b40f8d39 DW |
252 | struct u132 *u132 = kref_to_u132(kref); |
253 | struct platform_device *pdev = u132->platform_dev; | |
254 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
255 | u132->going += 1; | |
256 | mutex_lock(&u132_module_lock); | |
257 | list_del_init(&u132->u132_list); | |
258 | u132_instances -= 1; | |
259 | mutex_unlock(&u132_module_lock); | |
260 | dev_warn(&u132->platform_dev->dev, "FREEING the hcd=%p and thus the u13" | |
261 | "2=%p going=%d pdev=%p\n", hcd, u132, u132->going, pdev); | |
262 | usb_put_hcd(hcd); | |
d774efea TO |
263 | } |
264 | ||
265 | static inline void u132_u132_put_kref(struct u132 *u132) | |
266 | { | |
b40f8d39 | 267 | kref_put(&u132->kref, u132_hcd_delete); |
d774efea TO |
268 | } |
269 | ||
270 | static inline void u132_u132_init_kref(struct u132 *u132) | |
271 | { | |
b40f8d39 | 272 | kref_init(&u132->kref); |
d774efea TO |
273 | } |
274 | ||
275 | static void u132_udev_delete(struct kref *kref) | |
276 | { | |
b40f8d39 DW |
277 | struct u132_udev *udev = kref_to_u132_udev(kref); |
278 | udev->udev_number = 0; | |
279 | udev->usb_device = NULL; | |
280 | udev->usb_addr = 0; | |
281 | udev->enumeration = 0; | |
d774efea TO |
282 | } |
283 | ||
284 | static inline void u132_udev_put_kref(struct u132 *u132, struct u132_udev *udev) | |
285 | { | |
b40f8d39 | 286 | kref_put(&udev->kref, u132_udev_delete); |
d774efea TO |
287 | } |
288 | ||
289 | static inline void u132_udev_get_kref(struct u132 *u132, struct u132_udev *udev) | |
290 | { | |
b40f8d39 | 291 | kref_get(&udev->kref); |
d774efea TO |
292 | } |
293 | ||
294 | static inline void u132_udev_init_kref(struct u132 *u132, | |
b40f8d39 | 295 | struct u132_udev *udev) |
d774efea | 296 | { |
b40f8d39 | 297 | kref_init(&udev->kref); |
d774efea TO |
298 | } |
299 | ||
300 | static inline void u132_ring_put_kref(struct u132 *u132, struct u132_ring *ring) | |
301 | { | |
b40f8d39 | 302 | kref_put(&u132->kref, u132_hcd_delete); |
d774efea TO |
303 | } |
304 | ||
305 | static void u132_ring_requeue_work(struct u132 *u132, struct u132_ring *ring, | |
b40f8d39 | 306 | unsigned int delta) |
d774efea | 307 | { |
b40f8d39 DW |
308 | if (delta > 0) { |
309 | if (queue_delayed_work(workqueue, &ring->scheduler, delta)) | |
310 | return; | |
311 | } else if (queue_delayed_work(workqueue, &ring->scheduler, 0)) | |
312 | return; | |
313 | kref_put(&u132->kref, u132_hcd_delete); | |
d774efea TO |
314 | } |
315 | ||
316 | static void u132_ring_queue_work(struct u132 *u132, struct u132_ring *ring, | |
b40f8d39 | 317 | unsigned int delta) |
d774efea | 318 | { |
b40f8d39 DW |
319 | kref_get(&u132->kref); |
320 | u132_ring_requeue_work(u132, ring, delta); | |
d774efea TO |
321 | } |
322 | ||
323 | static void u132_ring_cancel_work(struct u132 *u132, struct u132_ring *ring) | |
324 | { | |
b40f8d39 DW |
325 | if (cancel_delayed_work(&ring->scheduler)) |
326 | kref_put(&u132->kref, u132_hcd_delete); | |
d774efea TO |
327 | } |
328 | ||
329 | static void u132_endp_delete(struct kref *kref) | |
330 | { | |
b40f8d39 DW |
331 | struct u132_endp *endp = kref_to_u132_endp(kref); |
332 | struct u132 *u132 = endp->u132; | |
333 | u8 usb_addr = endp->usb_addr; | |
334 | u8 usb_endp = endp->usb_endp; | |
335 | u8 address = u132->addr[usb_addr].address; | |
336 | struct u132_udev *udev = &u132->udev[address]; | |
337 | u8 endp_number = endp->endp_number; | |
338 | struct usb_host_endpoint *hep = endp->hep; | |
339 | struct u132_ring *ring = endp->ring; | |
340 | struct list_head *head = &endp->endp_ring; | |
341 | ring->length -= 1; | |
342 | if (endp == ring->curr_endp) { | |
343 | if (list_empty(head)) { | |
344 | ring->curr_endp = NULL; | |
345 | list_del(head); | |
346 | } else { | |
347 | struct u132_endp *next_endp = list_entry(head->next, | |
348 | struct u132_endp, endp_ring); | |
349 | ring->curr_endp = next_endp; | |
350 | list_del(head); | |
351 | } | |
352 | } else | |
353 | list_del(head); | |
354 | if (endp->input) { | |
355 | udev->endp_number_in[usb_endp] = 0; | |
356 | u132_udev_put_kref(u132, udev); | |
357 | } | |
358 | if (endp->output) { | |
359 | udev->endp_number_out[usb_endp] = 0; | |
360 | u132_udev_put_kref(u132, udev); | |
361 | } | |
362 | u132->endp[endp_number - 1] = NULL; | |
363 | hep->hcpriv = NULL; | |
364 | kfree(endp); | |
365 | u132_u132_put_kref(u132); | |
d774efea TO |
366 | } |
367 | ||
368 | static inline void u132_endp_put_kref(struct u132 *u132, struct u132_endp *endp) | |
369 | { | |
b40f8d39 | 370 | kref_put(&endp->kref, u132_endp_delete); |
d774efea TO |
371 | } |
372 | ||
373 | static inline void u132_endp_get_kref(struct u132 *u132, struct u132_endp *endp) | |
374 | { | |
b40f8d39 | 375 | kref_get(&endp->kref); |
d774efea TO |
376 | } |
377 | ||
378 | static inline void u132_endp_init_kref(struct u132 *u132, | |
b40f8d39 | 379 | struct u132_endp *endp) |
d774efea | 380 | { |
b40f8d39 DW |
381 | kref_init(&endp->kref); |
382 | kref_get(&u132->kref); | |
d774efea TO |
383 | } |
384 | ||
385 | static void u132_endp_queue_work(struct u132 *u132, struct u132_endp *endp, | |
b40f8d39 | 386 | unsigned int delta) |
d774efea | 387 | { |
c4028958 DH |
388 | if (queue_delayed_work(workqueue, &endp->scheduler, delta)) |
389 | kref_get(&endp->kref); | |
d774efea TO |
390 | } |
391 | ||
392 | static void u132_endp_cancel_work(struct u132 *u132, struct u132_endp *endp) | |
393 | { | |
b40f8d39 DW |
394 | if (cancel_delayed_work(&endp->scheduler)) |
395 | kref_put(&endp->kref, u132_endp_delete); | |
d774efea TO |
396 | } |
397 | ||
398 | static inline void u132_monitor_put_kref(struct u132 *u132) | |
399 | { | |
b40f8d39 | 400 | kref_put(&u132->kref, u132_hcd_delete); |
d774efea TO |
401 | } |
402 | ||
403 | static void u132_monitor_queue_work(struct u132 *u132, unsigned int delta) | |
404 | { | |
c4028958 DH |
405 | if (queue_delayed_work(workqueue, &u132->monitor, delta)) |
406 | kref_get(&u132->kref); | |
d774efea TO |
407 | } |
408 | ||
409 | static void u132_monitor_requeue_work(struct u132 *u132, unsigned int delta) | |
410 | { | |
c4028958 DH |
411 | if (!queue_delayed_work(workqueue, &u132->monitor, delta)) |
412 | kref_put(&u132->kref, u132_hcd_delete); | |
d774efea TO |
413 | } |
414 | ||
415 | static void u132_monitor_cancel_work(struct u132 *u132) | |
416 | { | |
b40f8d39 DW |
417 | if (cancel_delayed_work(&u132->monitor)) |
418 | kref_put(&u132->kref, u132_hcd_delete); | |
d774efea TO |
419 | } |
420 | ||
421 | static int read_roothub_info(struct u132 *u132) | |
422 | { | |
b40f8d39 DW |
423 | u32 revision; |
424 | int retval; | |
425 | retval = u132_read_pcimem(u132, revision, &revision); | |
426 | if (retval) { | |
427 | dev_err(&u132->platform_dev->dev, "error %d accessing device co" | |
428 | "ntrol\n", retval); | |
429 | return retval; | |
430 | } else if ((revision & 0xFF) == 0x10) { | |
431 | } else if ((revision & 0xFF) == 0x11) { | |
432 | } else { | |
433 | dev_err(&u132->platform_dev->dev, "device revision is not valid" | |
434 | " %08X\n", revision); | |
435 | return -ENODEV; | |
436 | } | |
437 | retval = u132_read_pcimem(u132, control, &u132->hc_control); | |
438 | if (retval) { | |
439 | dev_err(&u132->platform_dev->dev, "error %d accessing device co" | |
440 | "ntrol\n", retval); | |
441 | return retval; | |
442 | } | |
443 | retval = u132_read_pcimem(u132, roothub.status, | |
444 | &u132->hc_roothub_status); | |
445 | if (retval) { | |
446 | dev_err(&u132->platform_dev->dev, "error %d accessing device re" | |
447 | "g roothub.status\n", retval); | |
448 | return retval; | |
449 | } | |
450 | retval = u132_read_pcimem(u132, roothub.a, &u132->hc_roothub_a); | |
451 | if (retval) { | |
452 | dev_err(&u132->platform_dev->dev, "error %d accessing device re" | |
453 | "g roothub.a\n", retval); | |
454 | return retval; | |
455 | } | |
456 | { | |
457 | int I = u132->num_ports; | |
458 | int i = 0; | |
459 | while (I-- > 0) { | |
460 | retval = u132_read_pcimem(u132, roothub.portstatus[i], | |
461 | &u132->hc_roothub_portstatus[i]); | |
462 | if (retval) { | |
463 | dev_err(&u132->platform_dev->dev, "error %d acc" | |
464 | "essing device roothub.portstatus[%d]\n" | |
465 | , retval, i); | |
466 | return retval; | |
467 | } else | |
468 | i += 1; | |
469 | } | |
470 | } | |
471 | return 0; | |
d774efea TO |
472 | } |
473 | ||
c4028958 | 474 | static void u132_hcd_monitor_work(struct work_struct *work) |
d774efea | 475 | { |
b40f8d39 DW |
476 | struct u132 *u132 = container_of(work, struct u132, monitor.work); |
477 | if (u132->going > 1) { | |
478 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
479 | , u132->going); | |
480 | u132_monitor_put_kref(u132); | |
481 | return; | |
482 | } else if (u132->going > 0) { | |
483 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
484 | u132_monitor_put_kref(u132); | |
485 | return; | |
486 | } else { | |
487 | int retval; | |
488 | mutex_lock(&u132->sw_lock); | |
489 | retval = read_roothub_info(u132); | |
490 | if (retval) { | |
491 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
492 | u132_disable(u132); | |
493 | u132->going = 1; | |
494 | mutex_unlock(&u132->sw_lock); | |
495 | usb_hc_died(hcd); | |
496 | ftdi_elan_gone_away(u132->platform_dev); | |
497 | u132_monitor_put_kref(u132); | |
498 | return; | |
499 | } else { | |
500 | u132_monitor_requeue_work(u132, 500); | |
501 | mutex_unlock(&u132->sw_lock); | |
502 | return; | |
503 | } | |
504 | } | |
d774efea TO |
505 | } |
506 | ||
507 | static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp, | |
b40f8d39 | 508 | struct urb *urb, int status) |
d774efea | 509 | { |
b40f8d39 DW |
510 | struct u132_ring *ring; |
511 | unsigned long irqs; | |
512 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
513 | urb->error_count = 0; | |
514 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
e9df41c5 | 515 | usb_hcd_unlink_urb_from_ep(hcd, urb); |
b40f8d39 DW |
516 | endp->queue_next += 1; |
517 | if (ENDP_QUEUE_SIZE > --endp->queue_size) { | |
518 | endp->active = 0; | |
519 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
520 | } else { | |
521 | struct list_head *next = endp->urb_more.next; | |
522 | struct u132_urbq *urbq = list_entry(next, struct u132_urbq, | |
523 | urb_more); | |
524 | list_del(next); | |
525 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = | |
526 | urbq->urb; | |
527 | endp->active = 0; | |
528 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
529 | kfree(urbq); | |
530 | } | |
50d8ca9b | 531 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
532 | ring = endp->ring; |
533 | ring->in_use = 0; | |
534 | u132_ring_cancel_work(u132, ring); | |
535 | u132_ring_queue_work(u132, ring, 0); | |
50d8ca9b | 536 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 | 537 | u132_endp_put_kref(u132, endp); |
4a00027d | 538 | usb_hcd_giveback_urb(hcd, urb, status); |
d774efea TO |
539 | } |
540 | ||
541 | static void u132_hcd_forget_urb(struct u132 *u132, struct u132_endp *endp, | |
b40f8d39 | 542 | struct urb *urb, int status) |
d774efea | 543 | { |
b40f8d39 | 544 | u132_endp_put_kref(u132, endp); |
d774efea TO |
545 | } |
546 | ||
547 | static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp, | |
b40f8d39 | 548 | struct urb *urb, int status) |
d774efea | 549 | { |
b40f8d39 DW |
550 | unsigned long irqs; |
551 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
552 | urb->error_count = 0; | |
553 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
e9df41c5 | 554 | usb_hcd_unlink_urb_from_ep(hcd, urb); |
b40f8d39 DW |
555 | endp->queue_next += 1; |
556 | if (ENDP_QUEUE_SIZE > --endp->queue_size) { | |
557 | endp->active = 0; | |
558 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
559 | } else { | |
560 | struct list_head *next = endp->urb_more.next; | |
561 | struct u132_urbq *urbq = list_entry(next, struct u132_urbq, | |
562 | urb_more); | |
563 | list_del(next); | |
564 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = | |
565 | urbq->urb; | |
566 | endp->active = 0; | |
567 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
568 | kfree(urbq); | |
7f26b3a7 JP |
569 | } |
570 | usb_hcd_giveback_urb(hcd, urb, status); | |
d774efea TO |
571 | } |
572 | ||
573 | static inline int edset_input(struct u132 *u132, struct u132_ring *ring, | |
b40f8d39 DW |
574 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
575 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, | |
576 | int toggle_bits, int error_count, int condition_code, int repeat_number, | |
577 | int halted, int skipped, int actual, int non_null)) | |
d774efea | 578 | { |
b40f8d39 DW |
579 | return usb_ftdi_elan_edset_input(u132->platform_dev, ring->number, endp, |
580 | urb, address, endp->usb_endp, toggle_bits, callback); | |
d774efea TO |
581 | } |
582 | ||
583 | static inline int edset_setup(struct u132 *u132, struct u132_ring *ring, | |
b40f8d39 DW |
584 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
585 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, | |
586 | int toggle_bits, int error_count, int condition_code, int repeat_number, | |
587 | int halted, int skipped, int actual, int non_null)) | |
d774efea | 588 | { |
b40f8d39 DW |
589 | return usb_ftdi_elan_edset_setup(u132->platform_dev, ring->number, endp, |
590 | urb, address, endp->usb_endp, toggle_bits, callback); | |
d774efea TO |
591 | } |
592 | ||
593 | static inline int edset_single(struct u132 *u132, struct u132_ring *ring, | |
b40f8d39 DW |
594 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
595 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, | |
596 | int toggle_bits, int error_count, int condition_code, int repeat_number, | |
597 | int halted, int skipped, int actual, int non_null)) | |
d774efea | 598 | { |
b40f8d39 DW |
599 | return usb_ftdi_elan_edset_single(u132->platform_dev, ring->number, |
600 | endp, urb, address, endp->usb_endp, toggle_bits, callback); | |
d774efea TO |
601 | } |
602 | ||
603 | static inline int edset_output(struct u132 *u132, struct u132_ring *ring, | |
b40f8d39 DW |
604 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
605 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, | |
606 | int toggle_bits, int error_count, int condition_code, int repeat_number, | |
607 | int halted, int skipped, int actual, int non_null)) | |
d774efea | 608 | { |
b40f8d39 DW |
609 | return usb_ftdi_elan_edset_output(u132->platform_dev, ring->number, |
610 | endp, urb, address, endp->usb_endp, toggle_bits, callback); | |
d774efea TO |
611 | } |
612 | ||
613 | ||
614 | /* | |
615 | * must not LOCK sw_lock | |
616 | * | |
617 | */ | |
618 | static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
619 | int len, int toggle_bits, int error_count, int condition_code, |
620 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
621 | { | |
622 | struct u132_endp *endp = data; | |
623 | struct u132 *u132 = endp->u132; | |
624 | u8 address = u132->addr[endp->usb_addr].address; | |
625 | struct u132_udev *udev = &u132->udev[address]; | |
50d8ca9b | 626 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
627 | if (u132->going > 1) { |
628 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
629 | , u132->going); | |
50d8ca9b | 630 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
631 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
632 | return; | |
633 | } else if (endp->dequeueing) { | |
634 | endp->dequeueing = 0; | |
50d8ca9b | 635 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
636 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
637 | return; | |
638 | } else if (u132->going > 0) { | |
eb231054 AS |
639 | dev_err(&u132->platform_dev->dev, "device is being removed " |
640 | "urb=%p\n", urb); | |
50d8ca9b | 641 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
642 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
643 | return; | |
eb231054 | 644 | } else if (!urb->unlinked) { |
b40f8d39 DW |
645 | struct u132_ring *ring = endp->ring; |
646 | u8 *u = urb->transfer_buffer + urb->actual_length; | |
647 | u8 *b = buf; | |
648 | int L = len; | |
649 | ||
650 | while (L-- > 0) | |
651 | *u++ = *b++; | |
652 | ||
653 | urb->actual_length += len; | |
654 | if ((condition_code == TD_CC_NOERROR) && | |
655 | (urb->transfer_buffer_length > urb->actual_length)) { | |
656 | endp->toggle_bits = toggle_bits; | |
657 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
658 | 1 & toggle_bits); | |
659 | if (urb->actual_length > 0) { | |
660 | int retval; | |
50d8ca9b | 661 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
662 | retval = edset_single(u132, ring, endp, urb, |
663 | address, endp->toggle_bits, | |
664 | u132_hcd_interrupt_recv); | |
665 | if (retval != 0) | |
666 | u132_hcd_giveback_urb(u132, endp, urb, | |
667 | retval); | |
668 | } else { | |
669 | ring->in_use = 0; | |
670 | endp->active = 0; | |
671 | endp->jiffies = jiffies + | |
672 | msecs_to_jiffies(urb->interval); | |
673 | u132_ring_cancel_work(u132, ring); | |
674 | u132_ring_queue_work(u132, ring, 0); | |
50d8ca9b | 675 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
676 | u132_endp_put_kref(u132, endp); |
677 | } | |
678 | return; | |
679 | } else if ((condition_code == TD_DATAUNDERRUN) && | |
680 | ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) { | |
681 | endp->toggle_bits = toggle_bits; | |
682 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
683 | 1 & toggle_bits); | |
50d8ca9b | 684 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
685 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
686 | return; | |
687 | } else { | |
688 | if (condition_code == TD_CC_NOERROR) { | |
689 | endp->toggle_bits = toggle_bits; | |
690 | usb_settoggle(udev->usb_device, endp->usb_endp, | |
691 | 0, 1 & toggle_bits); | |
692 | } else if (condition_code == TD_CC_STALL) { | |
693 | endp->toggle_bits = 0x2; | |
694 | usb_settoggle(udev->usb_device, endp->usb_endp, | |
695 | 0, 0); | |
696 | } else { | |
697 | endp->toggle_bits = 0x2; | |
698 | usb_settoggle(udev->usb_device, endp->usb_endp, | |
699 | 0, 0); | |
700 | dev_err(&u132->platform_dev->dev, "urb=%p givin" | |
701 | "g back INTERRUPT %s\n", urb, | |
702 | cc_to_text[condition_code]); | |
703 | } | |
50d8ca9b | 704 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
705 | u132_hcd_giveback_urb(u132, endp, urb, |
706 | cc_to_error[condition_code]); | |
707 | return; | |
708 | } | |
709 | } else { | |
eb231054 AS |
710 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
711 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 712 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 713 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
714 | return; |
715 | } | |
d774efea TO |
716 | } |
717 | ||
718 | static void u132_hcd_bulk_output_sent(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
719 | int len, int toggle_bits, int error_count, int condition_code, |
720 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
721 | { | |
722 | struct u132_endp *endp = data; | |
723 | struct u132 *u132 = endp->u132; | |
724 | u8 address = u132->addr[endp->usb_addr].address; | |
50d8ca9b | 725 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
726 | if (u132->going > 1) { |
727 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
728 | , u132->going); | |
50d8ca9b | 729 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
730 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
731 | return; | |
732 | } else if (endp->dequeueing) { | |
733 | endp->dequeueing = 0; | |
50d8ca9b | 734 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
735 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
736 | return; | |
737 | } else if (u132->going > 0) { | |
eb231054 AS |
738 | dev_err(&u132->platform_dev->dev, "device is being removed " |
739 | "urb=%p\n", urb); | |
50d8ca9b | 740 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
741 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
742 | return; | |
eb231054 | 743 | } else if (!urb->unlinked) { |
b40f8d39 DW |
744 | struct u132_ring *ring = endp->ring; |
745 | urb->actual_length += len; | |
746 | endp->toggle_bits = toggle_bits; | |
747 | if (urb->transfer_buffer_length > urb->actual_length) { | |
748 | int retval; | |
50d8ca9b | 749 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
750 | retval = edset_output(u132, ring, endp, urb, address, |
751 | endp->toggle_bits, u132_hcd_bulk_output_sent); | |
752 | if (retval != 0) | |
753 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
754 | return; | |
755 | } else { | |
50d8ca9b | 756 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
757 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
758 | return; | |
759 | } | |
760 | } else { | |
eb231054 AS |
761 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
762 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 763 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 764 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
765 | return; |
766 | } | |
d774efea TO |
767 | } |
768 | ||
769 | static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
770 | int len, int toggle_bits, int error_count, int condition_code, |
771 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
772 | { | |
773 | struct u132_endp *endp = data; | |
774 | struct u132 *u132 = endp->u132; | |
775 | u8 address = u132->addr[endp->usb_addr].address; | |
776 | struct u132_udev *udev = &u132->udev[address]; | |
50d8ca9b | 777 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
778 | if (u132->going > 1) { |
779 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
780 | , u132->going); | |
50d8ca9b | 781 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
782 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
783 | return; | |
784 | } else if (endp->dequeueing) { | |
785 | endp->dequeueing = 0; | |
50d8ca9b | 786 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
787 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
788 | return; | |
789 | } else if (u132->going > 0) { | |
eb231054 AS |
790 | dev_err(&u132->platform_dev->dev, "device is being removed " |
791 | "urb=%p\n", urb); | |
50d8ca9b | 792 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
793 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
794 | return; | |
eb231054 | 795 | } else if (!urb->unlinked) { |
b40f8d39 DW |
796 | struct u132_ring *ring = endp->ring; |
797 | u8 *u = urb->transfer_buffer + urb->actual_length; | |
798 | u8 *b = buf; | |
799 | int L = len; | |
800 | ||
801 | while (L-- > 0) | |
802 | *u++ = *b++; | |
803 | ||
804 | urb->actual_length += len; | |
805 | if ((condition_code == TD_CC_NOERROR) && | |
806 | (urb->transfer_buffer_length > urb->actual_length)) { | |
807 | int retval; | |
808 | endp->toggle_bits = toggle_bits; | |
809 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
810 | 1 & toggle_bits); | |
50d8ca9b | 811 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
812 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
813 | ring->number, endp, urb, address, | |
814 | endp->usb_endp, endp->toggle_bits, | |
815 | u132_hcd_bulk_input_recv); | |
816 | if (retval != 0) | |
817 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
818 | return; | |
819 | } else if (condition_code == TD_CC_NOERROR) { | |
820 | endp->toggle_bits = toggle_bits; | |
821 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
822 | 1 & toggle_bits); | |
50d8ca9b | 823 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
824 | u132_hcd_giveback_urb(u132, endp, urb, |
825 | cc_to_error[condition_code]); | |
826 | return; | |
827 | } else if ((condition_code == TD_DATAUNDERRUN) && | |
828 | ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) { | |
829 | endp->toggle_bits = toggle_bits; | |
830 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
831 | 1 & toggle_bits); | |
50d8ca9b | 832 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
833 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
834 | return; | |
835 | } else if (condition_code == TD_DATAUNDERRUN) { | |
836 | endp->toggle_bits = toggle_bits; | |
837 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, | |
838 | 1 & toggle_bits); | |
839 | dev_warn(&u132->platform_dev->dev, "urb=%p(SHORT NOT OK" | |
840 | ") giving back BULK IN %s\n", urb, | |
841 | cc_to_text[condition_code]); | |
50d8ca9b | 842 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
843 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
844 | return; | |
845 | } else if (condition_code == TD_CC_STALL) { | |
846 | endp->toggle_bits = 0x2; | |
847 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0); | |
50d8ca9b | 848 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
849 | u132_hcd_giveback_urb(u132, endp, urb, |
850 | cc_to_error[condition_code]); | |
851 | return; | |
852 | } else { | |
853 | endp->toggle_bits = 0x2; | |
854 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0); | |
855 | dev_err(&u132->platform_dev->dev, "urb=%p giving back B" | |
856 | "ULK IN code=%d %s\n", urb, condition_code, | |
857 | cc_to_text[condition_code]); | |
50d8ca9b | 858 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
859 | u132_hcd_giveback_urb(u132, endp, urb, |
860 | cc_to_error[condition_code]); | |
861 | return; | |
862 | } | |
863 | } else { | |
eb231054 AS |
864 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
865 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 866 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 867 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
868 | return; |
869 | } | |
d774efea TO |
870 | } |
871 | ||
872 | static void u132_hcd_configure_empty_sent(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
873 | int len, int toggle_bits, int error_count, int condition_code, |
874 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
875 | { | |
876 | struct u132_endp *endp = data; | |
877 | struct u132 *u132 = endp->u132; | |
50d8ca9b | 878 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
879 | if (u132->going > 1) { |
880 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
881 | , u132->going); | |
50d8ca9b | 882 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
883 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
884 | return; | |
885 | } else if (endp->dequeueing) { | |
886 | endp->dequeueing = 0; | |
50d8ca9b | 887 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
888 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
889 | return; | |
890 | } else if (u132->going > 0) { | |
eb231054 AS |
891 | dev_err(&u132->platform_dev->dev, "device is being removed " |
892 | "urb=%p\n", urb); | |
50d8ca9b | 893 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
894 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
895 | return; | |
eb231054 | 896 | } else if (!urb->unlinked) { |
50d8ca9b | 897 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
898 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
899 | return; | |
900 | } else { | |
eb231054 AS |
901 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
902 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 903 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 904 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
905 | return; |
906 | } | |
d774efea TO |
907 | } |
908 | ||
909 | static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
910 | int len, int toggle_bits, int error_count, int condition_code, |
911 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
912 | { | |
913 | struct u132_endp *endp = data; | |
914 | struct u132 *u132 = endp->u132; | |
915 | u8 address = u132->addr[endp->usb_addr].address; | |
50d8ca9b | 916 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
917 | if (u132->going > 1) { |
918 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
919 | , u132->going); | |
50d8ca9b | 920 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
921 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
922 | return; | |
923 | } else if (endp->dequeueing) { | |
924 | endp->dequeueing = 0; | |
50d8ca9b | 925 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
926 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
927 | return; | |
928 | } else if (u132->going > 0) { | |
eb231054 AS |
929 | dev_err(&u132->platform_dev->dev, "device is being removed " |
930 | "urb=%p\n", urb); | |
50d8ca9b | 931 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
932 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
933 | return; | |
eb231054 | 934 | } else if (!urb->unlinked) { |
b40f8d39 DW |
935 | struct u132_ring *ring = endp->ring; |
936 | u8 *u = urb->transfer_buffer; | |
937 | u8 *b = buf; | |
938 | int L = len; | |
939 | ||
940 | while (L-- > 0) | |
941 | *u++ = *b++; | |
942 | ||
943 | urb->actual_length = len; | |
944 | if ((condition_code == TD_CC_NOERROR) || ((condition_code == | |
945 | TD_DATAUNDERRUN) && ((urb->transfer_flags & | |
946 | URB_SHORT_NOT_OK) == 0))) { | |
947 | int retval; | |
50d8ca9b | 948 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
949 | retval = usb_ftdi_elan_edset_empty(u132->platform_dev, |
950 | ring->number, endp, urb, address, | |
951 | endp->usb_endp, 0x3, | |
952 | u132_hcd_configure_empty_sent); | |
953 | if (retval != 0) | |
954 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
955 | return; | |
956 | } else if (condition_code == TD_CC_STALL) { | |
50d8ca9b | 957 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
958 | dev_warn(&u132->platform_dev->dev, "giving back SETUP I" |
959 | "NPUT STALL urb %p\n", urb); | |
960 | u132_hcd_giveback_urb(u132, endp, urb, | |
961 | cc_to_error[condition_code]); | |
962 | return; | |
963 | } else { | |
50d8ca9b | 964 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
965 | dev_err(&u132->platform_dev->dev, "giving back SETUP IN" |
966 | "PUT %s urb %p\n", cc_to_text[condition_code], | |
967 | urb); | |
968 | u132_hcd_giveback_urb(u132, endp, urb, | |
969 | cc_to_error[condition_code]); | |
970 | return; | |
971 | } | |
972 | } else { | |
eb231054 AS |
973 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
974 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 975 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 976 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
977 | return; |
978 | } | |
d774efea TO |
979 | } |
980 | ||
981 | static void u132_hcd_configure_empty_recv(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
982 | int len, int toggle_bits, int error_count, int condition_code, |
983 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
984 | { | |
985 | struct u132_endp *endp = data; | |
986 | struct u132 *u132 = endp->u132; | |
50d8ca9b | 987 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
988 | if (u132->going > 1) { |
989 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
990 | , u132->going); | |
50d8ca9b | 991 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
992 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
993 | return; | |
994 | } else if (endp->dequeueing) { | |
995 | endp->dequeueing = 0; | |
50d8ca9b | 996 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
997 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
998 | return; | |
999 | } else if (u132->going > 0) { | |
eb231054 AS |
1000 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1001 | "urb=%p\n", urb); | |
50d8ca9b | 1002 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1003 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1004 | return; | |
eb231054 | 1005 | } else if (!urb->unlinked) { |
50d8ca9b | 1006 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1007 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
1008 | return; | |
1009 | } else { | |
eb231054 AS |
1010 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1011 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1012 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1013 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1014 | return; |
1015 | } | |
d774efea TO |
1016 | } |
1017 | ||
1018 | static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
1019 | int len, int toggle_bits, int error_count, int condition_code, |
1020 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1021 | { | |
1022 | struct u132_endp *endp = data; | |
1023 | struct u132 *u132 = endp->u132; | |
1024 | u8 address = u132->addr[endp->usb_addr].address; | |
50d8ca9b | 1025 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1026 | if (u132->going > 1) { |
1027 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1028 | , u132->going); | |
50d8ca9b | 1029 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1030 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1031 | return; | |
1032 | } else if (endp->dequeueing) { | |
1033 | endp->dequeueing = 0; | |
50d8ca9b | 1034 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1035 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1036 | return; | |
1037 | } else if (u132->going > 0) { | |
eb231054 AS |
1038 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1039 | "urb=%p\n", urb); | |
50d8ca9b | 1040 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1041 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1042 | return; | |
eb231054 | 1043 | } else if (!urb->unlinked) { |
b40f8d39 DW |
1044 | if (usb_pipein(urb->pipe)) { |
1045 | int retval; | |
1046 | struct u132_ring *ring = endp->ring; | |
50d8ca9b | 1047 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1048 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
1049 | ring->number, endp, urb, address, | |
1050 | endp->usb_endp, 0, | |
1051 | u132_hcd_configure_input_recv); | |
1052 | if (retval != 0) | |
1053 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1054 | return; | |
1055 | } else { | |
1056 | int retval; | |
1057 | struct u132_ring *ring = endp->ring; | |
50d8ca9b | 1058 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1059 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
1060 | ring->number, endp, urb, address, | |
1061 | endp->usb_endp, 0, | |
1062 | u132_hcd_configure_empty_recv); | |
1063 | if (retval != 0) | |
1064 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1065 | return; | |
1066 | } | |
1067 | } else { | |
eb231054 AS |
1068 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1069 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1070 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1071 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1072 | return; |
1073 | } | |
d774efea TO |
1074 | } |
1075 | ||
1076 | static void u132_hcd_enumeration_empty_recv(void *data, struct urb *urb, | |
b40f8d39 DW |
1077 | u8 *buf, int len, int toggle_bits, int error_count, int condition_code, |
1078 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1079 | { | |
1080 | struct u132_endp *endp = data; | |
1081 | struct u132 *u132 = endp->u132; | |
1082 | u8 address = u132->addr[endp->usb_addr].address; | |
1083 | struct u132_udev *udev = &u132->udev[address]; | |
50d8ca9b | 1084 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1085 | if (u132->going > 1) { |
1086 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1087 | , u132->going); | |
50d8ca9b | 1088 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1089 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1090 | return; | |
1091 | } else if (endp->dequeueing) { | |
1092 | endp->dequeueing = 0; | |
50d8ca9b | 1093 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1094 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1095 | return; | |
1096 | } else if (u132->going > 0) { | |
eb231054 AS |
1097 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1098 | "urb=%p\n", urb); | |
50d8ca9b | 1099 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1100 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1101 | return; | |
eb231054 | 1102 | } else if (!urb->unlinked) { |
b40f8d39 DW |
1103 | u132->addr[0].address = 0; |
1104 | endp->usb_addr = udev->usb_addr; | |
50d8ca9b | 1105 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1106 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
1107 | return; | |
1108 | } else { | |
eb231054 AS |
1109 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1110 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1111 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1112 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1113 | return; |
1114 | } | |
d774efea TO |
1115 | } |
1116 | ||
1117 | static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb, | |
b40f8d39 DW |
1118 | u8 *buf, int len, int toggle_bits, int error_count, int condition_code, |
1119 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1120 | { | |
1121 | struct u132_endp *endp = data; | |
1122 | struct u132 *u132 = endp->u132; | |
50d8ca9b | 1123 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1124 | if (u132->going > 1) { |
1125 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1126 | , u132->going); | |
50d8ca9b | 1127 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1128 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1129 | return; | |
1130 | } else if (endp->dequeueing) { | |
1131 | endp->dequeueing = 0; | |
50d8ca9b | 1132 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1133 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1134 | return; | |
1135 | } else if (u132->going > 0) { | |
eb231054 AS |
1136 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1137 | "urb=%p\n", urb); | |
50d8ca9b | 1138 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1139 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1140 | return; | |
eb231054 | 1141 | } else if (!urb->unlinked) { |
b40f8d39 DW |
1142 | int retval; |
1143 | struct u132_ring *ring = endp->ring; | |
50d8ca9b | 1144 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1145 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
1146 | ring->number, endp, urb, 0, endp->usb_endp, 0, | |
1147 | u132_hcd_enumeration_empty_recv); | |
1148 | if (retval != 0) | |
1149 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1150 | return; | |
1151 | } else { | |
eb231054 AS |
1152 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1153 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1154 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1155 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1156 | return; |
1157 | } | |
d774efea TO |
1158 | } |
1159 | ||
1160 | static void u132_hcd_initial_empty_sent(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
1161 | int len, int toggle_bits, int error_count, int condition_code, |
1162 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1163 | { | |
1164 | struct u132_endp *endp = data; | |
1165 | struct u132 *u132 = endp->u132; | |
50d8ca9b | 1166 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1167 | if (u132->going > 1) { |
1168 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1169 | , u132->going); | |
50d8ca9b | 1170 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1171 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1172 | return; | |
1173 | } else if (endp->dequeueing) { | |
1174 | endp->dequeueing = 0; | |
50d8ca9b | 1175 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1176 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1177 | return; | |
1178 | } else if (u132->going > 0) { | |
eb231054 AS |
1179 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1180 | "urb=%p\n", urb); | |
50d8ca9b | 1181 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1182 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1183 | return; | |
eb231054 | 1184 | } else if (!urb->unlinked) { |
50d8ca9b | 1185 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1186 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
1187 | return; | |
1188 | } else { | |
eb231054 AS |
1189 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1190 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1191 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1192 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1193 | return; |
1194 | } | |
d774efea TO |
1195 | } |
1196 | ||
1197 | static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
1198 | int len, int toggle_bits, int error_count, int condition_code, |
1199 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1200 | { | |
1201 | struct u132_endp *endp = data; | |
1202 | struct u132 *u132 = endp->u132; | |
1203 | u8 address = u132->addr[endp->usb_addr].address; | |
50d8ca9b | 1204 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1205 | if (u132->going > 1) { |
1206 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1207 | , u132->going); | |
50d8ca9b | 1208 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1209 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1210 | return; | |
1211 | } else if (endp->dequeueing) { | |
1212 | endp->dequeueing = 0; | |
50d8ca9b | 1213 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1214 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1215 | return; | |
1216 | } else if (u132->going > 0) { | |
eb231054 AS |
1217 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1218 | "urb=%p\n", urb); | |
50d8ca9b | 1219 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1220 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1221 | return; | |
eb231054 | 1222 | } else if (!urb->unlinked) { |
b40f8d39 DW |
1223 | int retval; |
1224 | struct u132_ring *ring = endp->ring; | |
1225 | u8 *u = urb->transfer_buffer; | |
1226 | u8 *b = buf; | |
1227 | int L = len; | |
1228 | ||
1229 | while (L-- > 0) | |
1230 | *u++ = *b++; | |
1231 | ||
1232 | urb->actual_length = len; | |
50d8ca9b | 1233 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1234 | retval = usb_ftdi_elan_edset_empty(u132->platform_dev, |
1235 | ring->number, endp, urb, address, endp->usb_endp, 0x3, | |
1236 | u132_hcd_initial_empty_sent); | |
1237 | if (retval != 0) | |
1238 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1239 | return; | |
1240 | } else { | |
eb231054 AS |
1241 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1242 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1243 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1244 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1245 | return; |
1246 | } | |
d774efea TO |
1247 | } |
1248 | ||
1249 | static void u132_hcd_initial_setup_sent(void *data, struct urb *urb, u8 *buf, | |
b40f8d39 DW |
1250 | int len, int toggle_bits, int error_count, int condition_code, |
1251 | int repeat_number, int halted, int skipped, int actual, int non_null) | |
1252 | { | |
1253 | struct u132_endp *endp = data; | |
1254 | struct u132 *u132 = endp->u132; | |
1255 | u8 address = u132->addr[endp->usb_addr].address; | |
50d8ca9b | 1256 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1257 | if (u132->going > 1) { |
1258 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1259 | , u132->going); | |
50d8ca9b | 1260 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1261 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
1262 | return; | |
1263 | } else if (endp->dequeueing) { | |
1264 | endp->dequeueing = 0; | |
50d8ca9b | 1265 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1266 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
1267 | return; | |
1268 | } else if (u132->going > 0) { | |
eb231054 AS |
1269 | dev_err(&u132->platform_dev->dev, "device is being removed " |
1270 | "urb=%p\n", urb); | |
50d8ca9b | 1271 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1272 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
1273 | return; | |
eb231054 | 1274 | } else if (!urb->unlinked) { |
b40f8d39 DW |
1275 | int retval; |
1276 | struct u132_ring *ring = endp->ring; | |
50d8ca9b | 1277 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1278 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
1279 | ring->number, endp, urb, address, endp->usb_endp, 0, | |
1280 | u132_hcd_initial_input_recv); | |
1281 | if (retval != 0) | |
1282 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1283 | return; | |
1284 | } else { | |
eb231054 AS |
1285 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
1286 | "unlinked=%d\n", urb, urb->unlinked); | |
50d8ca9b | 1287 | mutex_unlock(&u132->scheduler_lock); |
4a00027d | 1288 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
b40f8d39 DW |
1289 | return; |
1290 | } | |
d774efea TO |
1291 | } |
1292 | ||
d774efea TO |
1293 | /* |
1294 | * this work function is only executed from the work queue | |
1295 | * | |
1296 | */ | |
c4028958 | 1297 | static void u132_hcd_ring_work_scheduler(struct work_struct *work) |
d774efea | 1298 | { |
b40f8d39 | 1299 | struct u132_ring *ring = |
c4028958 | 1300 | container_of(work, struct u132_ring, scheduler.work); |
b40f8d39 | 1301 | struct u132 *u132 = ring->u132; |
50d8ca9b | 1302 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 | 1303 | if (ring->in_use) { |
50d8ca9b | 1304 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1305 | u132_ring_put_kref(u132, ring); |
1306 | return; | |
1307 | } else if (ring->curr_endp) { | |
4e5d7a82 | 1308 | struct u132_endp *endp, *last_endp = ring->curr_endp; |
b40f8d39 | 1309 | unsigned long wakeup = 0; |
4e5d7a82 | 1310 | list_for_each_entry(endp, &last_endp->endp_ring, endp_ring) { |
b40f8d39 DW |
1311 | if (endp->queue_next == endp->queue_last) { |
1312 | } else if ((endp->delayed == 0) | |
1313 | || time_after_eq(jiffies, endp->jiffies)) { | |
1314 | ring->curr_endp = endp; | |
1315 | u132_endp_cancel_work(u132, last_endp); | |
1316 | u132_endp_queue_work(u132, last_endp, 0); | |
50d8ca9b | 1317 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1318 | u132_ring_put_kref(u132, ring); |
1319 | return; | |
1320 | } else { | |
1321 | unsigned long delta = endp->jiffies - jiffies; | |
1322 | if (delta > wakeup) | |
1323 | wakeup = delta; | |
1324 | } | |
1325 | } | |
1326 | if (last_endp->queue_next == last_endp->queue_last) { | |
1327 | } else if ((last_endp->delayed == 0) || time_after_eq(jiffies, | |
1328 | last_endp->jiffies)) { | |
1329 | u132_endp_cancel_work(u132, last_endp); | |
1330 | u132_endp_queue_work(u132, last_endp, 0); | |
50d8ca9b | 1331 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1332 | u132_ring_put_kref(u132, ring); |
1333 | return; | |
1334 | } else { | |
1335 | unsigned long delta = last_endp->jiffies - jiffies; | |
1336 | if (delta > wakeup) | |
1337 | wakeup = delta; | |
1338 | } | |
1339 | if (wakeup > 0) { | |
1340 | u132_ring_requeue_work(u132, ring, wakeup); | |
50d8ca9b | 1341 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1342 | return; |
1343 | } else { | |
50d8ca9b | 1344 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1345 | u132_ring_put_kref(u132, ring); |
1346 | return; | |
1347 | } | |
1348 | } else { | |
50d8ca9b | 1349 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1350 | u132_ring_put_kref(u132, ring); |
1351 | return; | |
1352 | } | |
d774efea TO |
1353 | } |
1354 | ||
c4028958 | 1355 | static void u132_hcd_endp_work_scheduler(struct work_struct *work) |
d774efea | 1356 | { |
b40f8d39 DW |
1357 | struct u132_ring *ring; |
1358 | struct u132_endp *endp = | |
c4028958 | 1359 | container_of(work, struct u132_endp, scheduler.work); |
b40f8d39 | 1360 | struct u132 *u132 = endp->u132; |
50d8ca9b | 1361 | mutex_lock(&u132->scheduler_lock); |
b40f8d39 DW |
1362 | ring = endp->ring; |
1363 | if (endp->edset_flush) { | |
1364 | endp->edset_flush = 0; | |
1365 | if (endp->dequeueing) | |
1366 | usb_ftdi_elan_edset_flush(u132->platform_dev, | |
1367 | ring->number, endp); | |
50d8ca9b | 1368 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1369 | u132_endp_put_kref(u132, endp); |
1370 | return; | |
1371 | } else if (endp->active) { | |
50d8ca9b | 1372 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1373 | u132_endp_put_kref(u132, endp); |
1374 | return; | |
1375 | } else if (ring->in_use) { | |
50d8ca9b | 1376 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1377 | u132_endp_put_kref(u132, endp); |
1378 | return; | |
1379 | } else if (endp->queue_next == endp->queue_last) { | |
50d8ca9b | 1380 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1381 | u132_endp_put_kref(u132, endp); |
1382 | return; | |
1383 | } else if (endp->pipetype == PIPE_INTERRUPT) { | |
1384 | u8 address = u132->addr[endp->usb_addr].address; | |
1385 | if (ring->in_use) { | |
50d8ca9b | 1386 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1387 | u132_endp_put_kref(u132, endp); |
1388 | return; | |
1389 | } else { | |
1390 | int retval; | |
1391 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & | |
1392 | endp->queue_next]; | |
1393 | endp->active = 1; | |
1394 | ring->curr_endp = endp; | |
1395 | ring->in_use = 1; | |
50d8ca9b | 1396 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1397 | retval = edset_single(u132, ring, endp, urb, address, |
1398 | endp->toggle_bits, u132_hcd_interrupt_recv); | |
1399 | if (retval != 0) | |
1400 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1401 | return; | |
1402 | } | |
1403 | } else if (endp->pipetype == PIPE_CONTROL) { | |
1404 | u8 address = u132->addr[endp->usb_addr].address; | |
1405 | if (ring->in_use) { | |
50d8ca9b | 1406 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1407 | u132_endp_put_kref(u132, endp); |
1408 | return; | |
1409 | } else if (address == 0) { | |
1410 | int retval; | |
1411 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & | |
1412 | endp->queue_next]; | |
1413 | endp->active = 1; | |
1414 | ring->curr_endp = endp; | |
1415 | ring->in_use = 1; | |
50d8ca9b | 1416 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1417 | retval = edset_setup(u132, ring, endp, urb, address, |
1418 | 0x2, u132_hcd_initial_setup_sent); | |
1419 | if (retval != 0) | |
1420 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1421 | return; | |
1422 | } else if (endp->usb_addr == 0) { | |
1423 | int retval; | |
1424 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & | |
1425 | endp->queue_next]; | |
1426 | endp->active = 1; | |
1427 | ring->curr_endp = endp; | |
1428 | ring->in_use = 1; | |
50d8ca9b | 1429 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1430 | retval = edset_setup(u132, ring, endp, urb, 0, 0x2, |
1431 | u132_hcd_enumeration_address_sent); | |
1432 | if (retval != 0) | |
1433 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1434 | return; | |
1435 | } else { | |
1436 | int retval; | |
b40f8d39 DW |
1437 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & |
1438 | endp->queue_next]; | |
1d6ec813 | 1439 | address = u132->addr[endp->usb_addr].address; |
b40f8d39 DW |
1440 | endp->active = 1; |
1441 | ring->curr_endp = endp; | |
1442 | ring->in_use = 1; | |
50d8ca9b | 1443 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1444 | retval = edset_setup(u132, ring, endp, urb, address, |
1445 | 0x2, u132_hcd_configure_setup_sent); | |
1446 | if (retval != 0) | |
1447 | u132_hcd_giveback_urb(u132, endp, urb, retval); | |
1448 | return; | |
1449 | } | |
1450 | } else { | |
1451 | if (endp->input) { | |
1452 | u8 address = u132->addr[endp->usb_addr].address; | |
1453 | if (ring->in_use) { | |
50d8ca9b | 1454 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1455 | u132_endp_put_kref(u132, endp); |
1456 | return; | |
1457 | } else { | |
1458 | int retval; | |
1459 | struct urb *urb = endp->urb_list[ | |
1460 | ENDP_QUEUE_MASK & endp->queue_next]; | |
1461 | endp->active = 1; | |
1462 | ring->curr_endp = endp; | |
1463 | ring->in_use = 1; | |
50d8ca9b | 1464 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1465 | retval = edset_input(u132, ring, endp, urb, |
1466 | address, endp->toggle_bits, | |
1467 | u132_hcd_bulk_input_recv); | |
1468 | if (retval == 0) { | |
1469 | } else | |
1470 | u132_hcd_giveback_urb(u132, endp, urb, | |
1471 | retval); | |
1472 | return; | |
1473 | } | |
1474 | } else { /* output pipe */ | |
1475 | u8 address = u132->addr[endp->usb_addr].address; | |
1476 | if (ring->in_use) { | |
50d8ca9b | 1477 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1478 | u132_endp_put_kref(u132, endp); |
1479 | return; | |
1480 | } else { | |
1481 | int retval; | |
1482 | struct urb *urb = endp->urb_list[ | |
1483 | ENDP_QUEUE_MASK & endp->queue_next]; | |
1484 | endp->active = 1; | |
1485 | ring->curr_endp = endp; | |
1486 | ring->in_use = 1; | |
50d8ca9b | 1487 | mutex_unlock(&u132->scheduler_lock); |
b40f8d39 DW |
1488 | retval = edset_output(u132, ring, endp, urb, |
1489 | address, endp->toggle_bits, | |
1490 | u132_hcd_bulk_output_sent); | |
1491 | if (retval == 0) { | |
1492 | } else | |
1493 | u132_hcd_giveback_urb(u132, endp, urb, | |
1494 | retval); | |
1495 | return; | |
1496 | } | |
1497 | } | |
1498 | } | |
d774efea | 1499 | } |
5b570d43 | 1500 | #ifdef CONFIG_PM |
d774efea TO |
1501 | |
1502 | static void port_power(struct u132 *u132, int pn, int is_on) | |
1503 | { | |
b40f8d39 | 1504 | u132->port[pn].power = is_on; |
d774efea TO |
1505 | } |
1506 | ||
5b570d43 G |
1507 | #endif |
1508 | ||
d774efea TO |
1509 | static void u132_power(struct u132 *u132, int is_on) |
1510 | { | |
b40f8d39 DW |
1511 | struct usb_hcd *hcd = u132_to_hcd(u132) |
1512 | ; /* hub is inactive unless the port is powered */ | |
1513 | if (is_on) { | |
1514 | if (u132->power) | |
1515 | return; | |
1516 | u132->power = 1; | |
1517 | } else { | |
1518 | u132->power = 0; | |
1519 | hcd->state = HC_STATE_HALT; | |
1520 | } | |
d774efea TO |
1521 | } |
1522 | ||
1523 | static int u132_periodic_reinit(struct u132 *u132) | |
1524 | { | |
b40f8d39 DW |
1525 | int retval; |
1526 | u32 fi = u132->hc_fminterval & 0x03fff; | |
1527 | u32 fit; | |
1528 | u32 fminterval; | |
1529 | retval = u132_read_pcimem(u132, fminterval, &fminterval); | |
1530 | if (retval) | |
1531 | return retval; | |
1532 | fit = fminterval & FIT; | |
1533 | retval = u132_write_pcimem(u132, fminterval, | |
1534 | (fit ^ FIT) | u132->hc_fminterval); | |
1535 | if (retval) | |
1536 | return retval; | |
8602b08a SK |
1537 | return u132_write_pcimem(u132, periodicstart, |
1538 | ((9 * fi) / 10) & 0x3fff); | |
d774efea TO |
1539 | } |
1540 | ||
1541 | static char *hcfs2string(int state) | |
1542 | { | |
b40f8d39 DW |
1543 | switch (state) { |
1544 | case OHCI_USB_RESET: | |
1545 | return "reset"; | |
1546 | case OHCI_USB_RESUME: | |
1547 | return "resume"; | |
1548 | case OHCI_USB_OPER: | |
1549 | return "operational"; | |
1550 | case OHCI_USB_SUSPEND: | |
1551 | return "suspend"; | |
1552 | } | |
1553 | return "?"; | |
d774efea TO |
1554 | } |
1555 | ||
d774efea TO |
1556 | static int u132_init(struct u132 *u132) |
1557 | { | |
b40f8d39 DW |
1558 | int retval; |
1559 | u32 control; | |
1560 | u132_disable(u132); | |
1561 | u132->next_statechange = jiffies; | |
1562 | retval = u132_write_pcimem(u132, intrdisable, OHCI_INTR_MIE); | |
1563 | if (retval) | |
1564 | return retval; | |
1565 | retval = u132_read_pcimem(u132, control, &control); | |
1566 | if (retval) | |
1567 | return retval; | |
1568 | if (u132->num_ports == 0) { | |
1569 | u32 rh_a = -1; | |
1570 | retval = u132_read_pcimem(u132, roothub.a, &rh_a); | |
1571 | if (retval) | |
1572 | return retval; | |
1573 | u132->num_ports = rh_a & RH_A_NDP; | |
1574 | retval = read_roothub_info(u132); | |
1575 | if (retval) | |
1576 | return retval; | |
1577 | } | |
1578 | if (u132->num_ports > MAX_U132_PORTS) | |
1579 | return -EINVAL; | |
1580 | ||
1581 | return 0; | |
d774efea TO |
1582 | } |
1583 | ||
1584 | ||
1585 | /* Start an OHCI controller, set the BUS operational | |
1586 | * resets USB and controller | |
1587 | * enable interrupts | |
1588 | */ | |
1589 | static int u132_run(struct u132 *u132) | |
1590 | { | |
b40f8d39 DW |
1591 | int retval; |
1592 | u32 control; | |
1593 | u32 status; | |
1594 | u32 fminterval; | |
1595 | u32 periodicstart; | |
1596 | u32 cmdstatus; | |
1597 | u32 roothub_a; | |
1598 | int mask = OHCI_INTR_INIT; | |
1599 | int first = u132->hc_fminterval == 0; | |
1600 | int sleep_time = 0; | |
1601 | int reset_timeout = 30; /* ... allow extra time */ | |
1602 | u132_disable(u132); | |
1603 | if (first) { | |
1604 | u32 temp; | |
1605 | retval = u132_read_pcimem(u132, fminterval, &temp); | |
1606 | if (retval) | |
1607 | return retval; | |
1608 | u132->hc_fminterval = temp & 0x3fff; | |
1609 | u132->hc_fminterval |= FSMP(u132->hc_fminterval) << 16; | |
1610 | } | |
1611 | retval = u132_read_pcimem(u132, control, &u132->hc_control); | |
1612 | if (retval) | |
1613 | return retval; | |
1614 | dev_info(&u132->platform_dev->dev, "resetting from state '%s', control " | |
1615 | "= %08X\n", hcfs2string(u132->hc_control & OHCI_CTRL_HCFS), | |
1616 | u132->hc_control); | |
1617 | switch (u132->hc_control & OHCI_CTRL_HCFS) { | |
1618 | case OHCI_USB_OPER: | |
1619 | sleep_time = 0; | |
1620 | break; | |
1621 | case OHCI_USB_SUSPEND: | |
1622 | case OHCI_USB_RESUME: | |
1623 | u132->hc_control &= OHCI_CTRL_RWC; | |
1624 | u132->hc_control |= OHCI_USB_RESUME; | |
1625 | sleep_time = 10; | |
1626 | break; | |
1627 | default: | |
1628 | u132->hc_control &= OHCI_CTRL_RWC; | |
1629 | u132->hc_control |= OHCI_USB_RESET; | |
1630 | sleep_time = 50; | |
1631 | break; | |
1632 | } | |
1633 | retval = u132_write_pcimem(u132, control, u132->hc_control); | |
1634 | if (retval) | |
1635 | return retval; | |
1636 | retval = u132_read_pcimem(u132, control, &control); | |
1637 | if (retval) | |
1638 | return retval; | |
1639 | msleep(sleep_time); | |
1640 | retval = u132_read_pcimem(u132, roothub.a, &roothub_a); | |
1641 | if (retval) | |
1642 | return retval; | |
1643 | if (!(roothub_a & RH_A_NPS)) { | |
1644 | int temp; /* power down each port */ | |
1645 | for (temp = 0; temp < u132->num_ports; temp++) { | |
1646 | retval = u132_write_pcimem(u132, | |
1647 | roothub.portstatus[temp], RH_PS_LSDA); | |
1648 | if (retval) | |
1649 | return retval; | |
1650 | } | |
1651 | } | |
1652 | retval = u132_read_pcimem(u132, control, &control); | |
1653 | if (retval) | |
1654 | return retval; | |
1655 | retry: | |
1656 | retval = u132_read_pcimem(u132, cmdstatus, &status); | |
1657 | if (retval) | |
1658 | return retval; | |
1659 | retval = u132_write_pcimem(u132, cmdstatus, OHCI_HCR); | |
1660 | if (retval) | |
1661 | return retval; | |
1662 | extra: { | |
1663 | retval = u132_read_pcimem(u132, cmdstatus, &status); | |
1664 | if (retval) | |
1665 | return retval; | |
1666 | if (0 != (status & OHCI_HCR)) { | |
1667 | if (--reset_timeout == 0) { | |
1668 | dev_err(&u132->platform_dev->dev, "USB HC reset" | |
1669 | " timed out!\n"); | |
1670 | return -ENODEV; | |
1671 | } else { | |
1672 | msleep(5); | |
1673 | goto extra; | |
1674 | } | |
1675 | } | |
1676 | } | |
1677 | if (u132->flags & OHCI_QUIRK_INITRESET) { | |
1678 | retval = u132_write_pcimem(u132, control, u132->hc_control); | |
1679 | if (retval) | |
1680 | return retval; | |
1681 | retval = u132_read_pcimem(u132, control, &control); | |
1682 | if (retval) | |
1683 | return retval; | |
1684 | } | |
1685 | retval = u132_write_pcimem(u132, ed_controlhead, 0x00000000); | |
1686 | if (retval) | |
1687 | return retval; | |
1688 | retval = u132_write_pcimem(u132, ed_bulkhead, 0x11000000); | |
1689 | if (retval) | |
1690 | return retval; | |
1691 | retval = u132_write_pcimem(u132, hcca, 0x00000000); | |
1692 | if (retval) | |
1693 | return retval; | |
1694 | retval = u132_periodic_reinit(u132); | |
1695 | if (retval) | |
1696 | return retval; | |
1697 | retval = u132_read_pcimem(u132, fminterval, &fminterval); | |
1698 | if (retval) | |
1699 | return retval; | |
1700 | retval = u132_read_pcimem(u132, periodicstart, &periodicstart); | |
1701 | if (retval) | |
1702 | return retval; | |
1703 | if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) { | |
1704 | if (!(u132->flags & OHCI_QUIRK_INITRESET)) { | |
1705 | u132->flags |= OHCI_QUIRK_INITRESET; | |
1706 | goto retry; | |
1707 | } else | |
1708 | dev_err(&u132->platform_dev->dev, "init err(%08x %04x)" | |
1709 | "\n", fminterval, periodicstart); | |
1710 | } /* start controller operations */ | |
1711 | u132->hc_control &= OHCI_CTRL_RWC; | |
1712 | u132->hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER; | |
1713 | retval = u132_write_pcimem(u132, control, u132->hc_control); | |
1714 | if (retval) | |
1715 | return retval; | |
1716 | retval = u132_write_pcimem(u132, cmdstatus, OHCI_BLF); | |
1717 | if (retval) | |
1718 | return retval; | |
1719 | retval = u132_read_pcimem(u132, cmdstatus, &cmdstatus); | |
1720 | if (retval) | |
1721 | return retval; | |
1722 | retval = u132_read_pcimem(u132, control, &control); | |
1723 | if (retval) | |
1724 | return retval; | |
1725 | u132_to_hcd(u132)->state = HC_STATE_RUNNING; | |
1726 | retval = u132_write_pcimem(u132, roothub.status, RH_HS_DRWE); | |
1727 | if (retval) | |
1728 | return retval; | |
1729 | retval = u132_write_pcimem(u132, intrstatus, mask); | |
1730 | if (retval) | |
1731 | return retval; | |
1732 | retval = u132_write_pcimem(u132, intrdisable, | |
1733 | OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO | | |
1734 | OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH | | |
1735 | OHCI_INTR_SO); | |
1736 | if (retval) | |
1737 | return retval; /* handle root hub init quirks ... */ | |
1738 | retval = u132_read_pcimem(u132, roothub.a, &roothub_a); | |
1739 | if (retval) | |
1740 | return retval; | |
1741 | roothub_a &= ~(RH_A_PSM | RH_A_OCPM); | |
1742 | if (u132->flags & OHCI_QUIRK_SUPERIO) { | |
1743 | roothub_a |= RH_A_NOCP; | |
1744 | roothub_a &= ~(RH_A_POTPGT | RH_A_NPS); | |
1745 | retval = u132_write_pcimem(u132, roothub.a, roothub_a); | |
1746 | if (retval) | |
1747 | return retval; | |
1748 | } else if ((u132->flags & OHCI_QUIRK_AMD756) || distrust_firmware) { | |
1749 | roothub_a |= RH_A_NPS; | |
1750 | retval = u132_write_pcimem(u132, roothub.a, roothub_a); | |
1751 | if (retval) | |
1752 | return retval; | |
1753 | } | |
1754 | retval = u132_write_pcimem(u132, roothub.status, RH_HS_LPSC); | |
1755 | if (retval) | |
1756 | return retval; | |
1757 | retval = u132_write_pcimem(u132, roothub.b, | |
1758 | (roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM); | |
1759 | if (retval) | |
1760 | return retval; | |
1761 | retval = u132_read_pcimem(u132, control, &control); | |
1762 | if (retval) | |
1763 | return retval; | |
1764 | mdelay((roothub_a >> 23) & 0x1fe); | |
1765 | u132_to_hcd(u132)->state = HC_STATE_RUNNING; | |
1766 | return 0; | |
d774efea TO |
1767 | } |
1768 | ||
1769 | static void u132_hcd_stop(struct usb_hcd *hcd) | |
1770 | { | |
b40f8d39 DW |
1771 | struct u132 *u132 = hcd_to_u132(hcd); |
1772 | if (u132->going > 1) { | |
1773 | dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p) has b" | |
1774 | "een removed %d\n", u132, hcd, u132->going); | |
1775 | } else if (u132->going > 0) { | |
1776 | dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" | |
1777 | "ed\n", hcd); | |
1778 | } else { | |
1779 | mutex_lock(&u132->sw_lock); | |
1780 | msleep(100); | |
1781 | u132_power(u132, 0); | |
1782 | mutex_unlock(&u132->sw_lock); | |
1783 | } | |
d774efea TO |
1784 | } |
1785 | ||
1786 | static int u132_hcd_start(struct usb_hcd *hcd) | |
1787 | { | |
b40f8d39 DW |
1788 | struct u132 *u132 = hcd_to_u132(hcd); |
1789 | if (u132->going > 1) { | |
1790 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1791 | , u132->going); | |
1792 | return -ENODEV; | |
1793 | } else if (u132->going > 0) { | |
1794 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
1795 | return -ESHUTDOWN; | |
1796 | } else if (hcd->self.controller) { | |
1797 | int retval; | |
1798 | struct platform_device *pdev = | |
1799 | to_platform_device(hcd->self.controller); | |
1800 | u16 vendor = ((struct u132_platform_data *) | |
d4f09e28 | 1801 | dev_get_platdata(&pdev->dev))->vendor; |
b40f8d39 | 1802 | u16 device = ((struct u132_platform_data *) |
d4f09e28 | 1803 | dev_get_platdata(&pdev->dev))->device; |
b40f8d39 DW |
1804 | mutex_lock(&u132->sw_lock); |
1805 | msleep(10); | |
1806 | if (vendor == PCI_VENDOR_ID_AMD && device == 0x740c) { | |
1807 | u132->flags = OHCI_QUIRK_AMD756; | |
1808 | } else if (vendor == PCI_VENDOR_ID_OPTI && device == 0xc861) { | |
1809 | dev_err(&u132->platform_dev->dev, "WARNING: OPTi workar" | |
1810 | "ounds unavailable\n"); | |
1811 | } else if (vendor == PCI_VENDOR_ID_COMPAQ && device == 0xa0f8) | |
1812 | u132->flags |= OHCI_QUIRK_ZFMICRO; | |
1813 | retval = u132_run(u132); | |
1814 | if (retval) { | |
1815 | u132_disable(u132); | |
1816 | u132->going = 1; | |
1817 | } | |
1818 | msleep(100); | |
1819 | mutex_unlock(&u132->sw_lock); | |
1820 | return retval; | |
1821 | } else { | |
1822 | dev_err(&u132->platform_dev->dev, "platform_device missing\n"); | |
1823 | return -ENODEV; | |
1824 | } | |
d774efea TO |
1825 | } |
1826 | ||
1827 | static int u132_hcd_reset(struct usb_hcd *hcd) | |
1828 | { | |
b40f8d39 DW |
1829 | struct u132 *u132 = hcd_to_u132(hcd); |
1830 | if (u132->going > 1) { | |
1831 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
1832 | , u132->going); | |
1833 | return -ENODEV; | |
1834 | } else if (u132->going > 0) { | |
1835 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
1836 | return -ESHUTDOWN; | |
1837 | } else { | |
1838 | int retval; | |
1839 | mutex_lock(&u132->sw_lock); | |
1840 | retval = u132_init(u132); | |
1841 | if (retval) { | |
1842 | u132_disable(u132); | |
1843 | u132->going = 1; | |
1844 | } | |
1845 | mutex_unlock(&u132->sw_lock); | |
1846 | return retval; | |
1847 | } | |
d774efea TO |
1848 | } |
1849 | ||
1850 | static int create_endpoint_and_queue_int(struct u132 *u132, | |
e9df41c5 | 1851 | struct u132_udev *udev, struct urb *urb, |
b40f8d39 DW |
1852 | struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address, |
1853 | gfp_t mem_flags) | |
d774efea | 1854 | { |
b40f8d39 DW |
1855 | struct u132_ring *ring; |
1856 | unsigned long irqs; | |
e9df41c5 AS |
1857 | int rc; |
1858 | u8 endp_number; | |
1859 | struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); | |
1860 | ||
b40f8d39 DW |
1861 | if (!endp) |
1862 | return -ENOMEM; | |
e9df41c5 AS |
1863 | |
1864 | spin_lock_init(&endp->queue_lock.slock); | |
1865 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
1866 | rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); | |
1867 | if (rc) { | |
1868 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
1869 | kfree(endp); | |
1870 | return rc; | |
1871 | } | |
1872 | ||
1873 | endp_number = ++u132->num_endpoints; | |
1874 | urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; | |
b40f8d39 DW |
1875 | INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
1876 | INIT_LIST_HEAD(&endp->urb_more); | |
1877 | ring = endp->ring = &u132->ring[0]; | |
1878 | if (ring->curr_endp) { | |
1879 | list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); | |
1880 | } else { | |
1881 | INIT_LIST_HEAD(&endp->endp_ring); | |
1882 | ring->curr_endp = endp; | |
1883 | } | |
1884 | ring->length += 1; | |
1885 | endp->dequeueing = 0; | |
1886 | endp->edset_flush = 0; | |
1887 | endp->active = 0; | |
1888 | endp->delayed = 0; | |
1889 | endp->endp_number = endp_number; | |
1890 | endp->u132 = u132; | |
e9df41c5 | 1891 | endp->hep = urb->ep; |
b40f8d39 DW |
1892 | endp->pipetype = usb_pipetype(urb->pipe); |
1893 | u132_endp_init_kref(u132, endp); | |
1894 | if (usb_pipein(urb->pipe)) { | |
1895 | endp->toggle_bits = 0x2; | |
1896 | usb_settoggle(udev->usb_device, usb_endp, 0, 0); | |
1897 | endp->input = 1; | |
1898 | endp->output = 0; | |
1899 | udev->endp_number_in[usb_endp] = endp_number; | |
1900 | u132_udev_get_kref(u132, udev); | |
1901 | } else { | |
1902 | endp->toggle_bits = 0x2; | |
1903 | usb_settoggle(udev->usb_device, usb_endp, 1, 0); | |
1904 | endp->input = 0; | |
1905 | endp->output = 1; | |
1906 | udev->endp_number_out[usb_endp] = endp_number; | |
1907 | u132_udev_get_kref(u132, udev); | |
1908 | } | |
1909 | urb->hcpriv = u132; | |
1910 | endp->delayed = 1; | |
1911 | endp->jiffies = jiffies + msecs_to_jiffies(urb->interval); | |
1912 | endp->udev_number = address; | |
1913 | endp->usb_addr = usb_addr; | |
1914 | endp->usb_endp = usb_endp; | |
1915 | endp->queue_size = 1; | |
1916 | endp->queue_last = 0; | |
1917 | endp->queue_next = 0; | |
1918 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
1919 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
1920 | u132_endp_queue_work(u132, endp, msecs_to_jiffies(urb->interval)); | |
1921 | return 0; | |
d774efea TO |
1922 | } |
1923 | ||
e9df41c5 AS |
1924 | static int queue_int_on_old_endpoint(struct u132 *u132, |
1925 | struct u132_udev *udev, struct urb *urb, | |
b40f8d39 DW |
1926 | struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
1927 | u8 usb_endp, u8 address) | |
1928 | { | |
1929 | urb->hcpriv = u132; | |
1930 | endp->delayed = 1; | |
1931 | endp->jiffies = jiffies + msecs_to_jiffies(urb->interval); | |
1932 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
1933 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
1934 | } else { | |
1935 | struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq), | |
1936 | GFP_ATOMIC); | |
1937 | if (urbq == NULL) { | |
1938 | endp->queue_size -= 1; | |
1939 | return -ENOMEM; | |
1940 | } else { | |
1941 | list_add_tail(&urbq->urb_more, &endp->urb_more); | |
1942 | urbq->urb = urb; | |
1943 | } | |
1944 | } | |
1945 | return 0; | |
d774efea TO |
1946 | } |
1947 | ||
1948 | static int create_endpoint_and_queue_bulk(struct u132 *u132, | |
e9df41c5 | 1949 | struct u132_udev *udev, struct urb *urb, |
b40f8d39 DW |
1950 | struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address, |
1951 | gfp_t mem_flags) | |
d774efea | 1952 | { |
b40f8d39 DW |
1953 | int ring_number; |
1954 | struct u132_ring *ring; | |
1955 | unsigned long irqs; | |
e9df41c5 AS |
1956 | int rc; |
1957 | u8 endp_number; | |
1958 | struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); | |
1959 | ||
b40f8d39 DW |
1960 | if (!endp) |
1961 | return -ENOMEM; | |
e9df41c5 AS |
1962 | |
1963 | spin_lock_init(&endp->queue_lock.slock); | |
1964 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
1965 | rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); | |
1966 | if (rc) { | |
1967 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
1968 | kfree(endp); | |
1969 | return rc; | |
1970 | } | |
1971 | ||
1972 | endp_number = ++u132->num_endpoints; | |
1973 | urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; | |
b40f8d39 DW |
1974 | INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
1975 | INIT_LIST_HEAD(&endp->urb_more); | |
1976 | endp->dequeueing = 0; | |
1977 | endp->edset_flush = 0; | |
1978 | endp->active = 0; | |
1979 | endp->delayed = 0; | |
1980 | endp->endp_number = endp_number; | |
1981 | endp->u132 = u132; | |
e9df41c5 | 1982 | endp->hep = urb->ep; |
b40f8d39 DW |
1983 | endp->pipetype = usb_pipetype(urb->pipe); |
1984 | u132_endp_init_kref(u132, endp); | |
1985 | if (usb_pipein(urb->pipe)) { | |
1986 | endp->toggle_bits = 0x2; | |
1987 | usb_settoggle(udev->usb_device, usb_endp, 0, 0); | |
1988 | ring_number = 3; | |
1989 | endp->input = 1; | |
1990 | endp->output = 0; | |
1991 | udev->endp_number_in[usb_endp] = endp_number; | |
1992 | u132_udev_get_kref(u132, udev); | |
1993 | } else { | |
1994 | endp->toggle_bits = 0x2; | |
1995 | usb_settoggle(udev->usb_device, usb_endp, 1, 0); | |
1996 | ring_number = 2; | |
1997 | endp->input = 0; | |
1998 | endp->output = 1; | |
1999 | udev->endp_number_out[usb_endp] = endp_number; | |
2000 | u132_udev_get_kref(u132, udev); | |
2001 | } | |
2002 | ring = endp->ring = &u132->ring[ring_number - 1]; | |
2003 | if (ring->curr_endp) { | |
2004 | list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); | |
2005 | } else { | |
2006 | INIT_LIST_HEAD(&endp->endp_ring); | |
2007 | ring->curr_endp = endp; | |
2008 | } | |
2009 | ring->length += 1; | |
2010 | urb->hcpriv = u132; | |
2011 | endp->udev_number = address; | |
2012 | endp->usb_addr = usb_addr; | |
2013 | endp->usb_endp = usb_endp; | |
2014 | endp->queue_size = 1; | |
2015 | endp->queue_last = 0; | |
2016 | endp->queue_next = 0; | |
2017 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
2018 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2019 | u132_endp_queue_work(u132, endp, 0); | |
2020 | return 0; | |
d774efea TO |
2021 | } |
2022 | ||
2023 | static int queue_bulk_on_old_endpoint(struct u132 *u132, struct u132_udev *udev, | |
e9df41c5 | 2024 | struct urb *urb, |
b40f8d39 DW |
2025 | struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
2026 | u8 usb_endp, u8 address) | |
2027 | { | |
2028 | urb->hcpriv = u132; | |
2029 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
2030 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
2031 | } else { | |
2032 | struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq), | |
2033 | GFP_ATOMIC); | |
2034 | if (urbq == NULL) { | |
2035 | endp->queue_size -= 1; | |
2036 | return -ENOMEM; | |
2037 | } else { | |
2038 | list_add_tail(&urbq->urb_more, &endp->urb_more); | |
2039 | urbq->urb = urb; | |
2040 | } | |
2041 | } | |
2042 | return 0; | |
d774efea TO |
2043 | } |
2044 | ||
2045 | static int create_endpoint_and_queue_control(struct u132 *u132, | |
e9df41c5 | 2046 | struct urb *urb, |
b40f8d39 DW |
2047 | struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, |
2048 | gfp_t mem_flags) | |
d774efea | 2049 | { |
b40f8d39 | 2050 | struct u132_ring *ring; |
e9df41c5 AS |
2051 | unsigned long irqs; |
2052 | int rc; | |
2053 | u8 endp_number; | |
2054 | struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); | |
2055 | ||
b40f8d39 DW |
2056 | if (!endp) |
2057 | return -ENOMEM; | |
e9df41c5 AS |
2058 | |
2059 | spin_lock_init(&endp->queue_lock.slock); | |
2060 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); | |
2061 | rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); | |
2062 | if (rc) { | |
2063 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2064 | kfree(endp); | |
2065 | return rc; | |
2066 | } | |
2067 | ||
2068 | endp_number = ++u132->num_endpoints; | |
2069 | urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; | |
b40f8d39 DW |
2070 | INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
2071 | INIT_LIST_HEAD(&endp->urb_more); | |
2072 | ring = endp->ring = &u132->ring[0]; | |
2073 | if (ring->curr_endp) { | |
2074 | list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); | |
2075 | } else { | |
2076 | INIT_LIST_HEAD(&endp->endp_ring); | |
2077 | ring->curr_endp = endp; | |
2078 | } | |
2079 | ring->length += 1; | |
2080 | endp->dequeueing = 0; | |
2081 | endp->edset_flush = 0; | |
2082 | endp->active = 0; | |
2083 | endp->delayed = 0; | |
2084 | endp->endp_number = endp_number; | |
2085 | endp->u132 = u132; | |
e9df41c5 | 2086 | endp->hep = urb->ep; |
b40f8d39 DW |
2087 | u132_endp_init_kref(u132, endp); |
2088 | u132_endp_get_kref(u132, endp); | |
2089 | if (usb_addr == 0) { | |
2090 | u8 address = u132->addr[usb_addr].address; | |
2091 | struct u132_udev *udev = &u132->udev[address]; | |
2092 | endp->udev_number = address; | |
2093 | endp->usb_addr = usb_addr; | |
2094 | endp->usb_endp = usb_endp; | |
2095 | endp->input = 1; | |
2096 | endp->output = 1; | |
2097 | endp->pipetype = usb_pipetype(urb->pipe); | |
2098 | u132_udev_init_kref(u132, udev); | |
2099 | u132_udev_get_kref(u132, udev); | |
2100 | udev->endp_number_in[usb_endp] = endp_number; | |
2101 | udev->endp_number_out[usb_endp] = endp_number; | |
2102 | urb->hcpriv = u132; | |
2103 | endp->queue_size = 1; | |
2104 | endp->queue_last = 0; | |
2105 | endp->queue_next = 0; | |
2106 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
2107 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2108 | u132_endp_queue_work(u132, endp, 0); | |
2109 | return 0; | |
2110 | } else { /*(usb_addr > 0) */ | |
2111 | u8 address = u132->addr[usb_addr].address; | |
2112 | struct u132_udev *udev = &u132->udev[address]; | |
2113 | endp->udev_number = address; | |
2114 | endp->usb_addr = usb_addr; | |
2115 | endp->usb_endp = usb_endp; | |
2116 | endp->input = 1; | |
2117 | endp->output = 1; | |
2118 | endp->pipetype = usb_pipetype(urb->pipe); | |
2119 | u132_udev_get_kref(u132, udev); | |
2120 | udev->enumeration = 2; | |
2121 | udev->endp_number_in[usb_endp] = endp_number; | |
2122 | udev->endp_number_out[usb_endp] = endp_number; | |
2123 | urb->hcpriv = u132; | |
2124 | endp->queue_size = 1; | |
2125 | endp->queue_last = 0; | |
2126 | endp->queue_next = 0; | |
2127 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; | |
2128 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2129 | u132_endp_queue_work(u132, endp, 0); | |
2130 | return 0; | |
2131 | } | |
d774efea TO |
2132 | } |
2133 | ||
2134 | static int queue_control_on_old_endpoint(struct u132 *u132, | |
e9df41c5 | 2135 | struct urb *urb, |
b40f8d39 DW |
2136 | struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
2137 | u8 usb_endp) | |
2138 | { | |
2139 | if (usb_addr == 0) { | |
2140 | if (usb_pipein(urb->pipe)) { | |
2141 | urb->hcpriv = u132; | |
2142 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
2143 | endp->urb_list[ENDP_QUEUE_MASK & | |
2144 | endp->queue_last++] = urb; | |
2145 | } else { | |
2146 | struct u132_urbq *urbq = | |
2147 | kmalloc(sizeof(struct u132_urbq), | |
2148 | GFP_ATOMIC); | |
2149 | if (urbq == NULL) { | |
2150 | endp->queue_size -= 1; | |
2151 | return -ENOMEM; | |
2152 | } else { | |
2153 | list_add_tail(&urbq->urb_more, | |
2154 | &endp->urb_more); | |
2155 | urbq->urb = urb; | |
2156 | } | |
2157 | } | |
2158 | return 0; | |
2159 | } else { /* usb_pipeout(urb->pipe) */ | |
2160 | struct u132_addr *addr = &u132->addr[usb_dev->devnum]; | |
2161 | int I = MAX_U132_UDEVS; | |
2162 | int i = 0; | |
2163 | while (--I > 0) { | |
2164 | struct u132_udev *udev = &u132->udev[++i]; | |
2165 | if (udev->usb_device) { | |
2166 | continue; | |
2167 | } else { | |
2168 | udev->enumeration = 1; | |
2169 | u132->addr[0].address = i; | |
2170 | endp->udev_number = i; | |
2171 | udev->udev_number = i; | |
2172 | udev->usb_addr = usb_dev->devnum; | |
2173 | u132_udev_init_kref(u132, udev); | |
2174 | udev->endp_number_in[usb_endp] = | |
2175 | endp->endp_number; | |
2176 | u132_udev_get_kref(u132, udev); | |
2177 | udev->endp_number_out[usb_endp] = | |
2178 | endp->endp_number; | |
2179 | udev->usb_device = usb_dev; | |
2180 | ((u8 *) (urb->setup_packet))[2] = | |
2181 | addr->address = i; | |
2182 | u132_udev_get_kref(u132, udev); | |
2183 | break; | |
2184 | } | |
2185 | } | |
2186 | if (I == 0) { | |
2187 | dev_err(&u132->platform_dev->dev, "run out of d" | |
2188 | "evice space\n"); | |
2189 | return -EINVAL; | |
2190 | } | |
2191 | urb->hcpriv = u132; | |
2192 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
2193 | endp->urb_list[ENDP_QUEUE_MASK & | |
2194 | endp->queue_last++] = urb; | |
2195 | } else { | |
2196 | struct u132_urbq *urbq = | |
2197 | kmalloc(sizeof(struct u132_urbq), | |
2198 | GFP_ATOMIC); | |
2199 | if (urbq == NULL) { | |
2200 | endp->queue_size -= 1; | |
2201 | return -ENOMEM; | |
2202 | } else { | |
2203 | list_add_tail(&urbq->urb_more, | |
2204 | &endp->urb_more); | |
2205 | urbq->urb = urb; | |
2206 | } | |
2207 | } | |
2208 | return 0; | |
2209 | } | |
2210 | } else { /*(usb_addr > 0) */ | |
2211 | u8 address = u132->addr[usb_addr].address; | |
2212 | struct u132_udev *udev = &u132->udev[address]; | |
2213 | urb->hcpriv = u132; | |
2214 | if (udev->enumeration != 2) | |
2215 | udev->enumeration = 2; | |
2216 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { | |
2217 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = | |
2218 | urb; | |
2219 | } else { | |
2220 | struct u132_urbq *urbq = | |
2221 | kmalloc(sizeof(struct u132_urbq), GFP_ATOMIC); | |
2222 | if (urbq == NULL) { | |
2223 | endp->queue_size -= 1; | |
2224 | return -ENOMEM; | |
2225 | } else { | |
2226 | list_add_tail(&urbq->urb_more, &endp->urb_more); | |
2227 | urbq->urb = urb; | |
2228 | } | |
2229 | } | |
2230 | return 0; | |
2231 | } | |
d774efea TO |
2232 | } |
2233 | ||
e9df41c5 AS |
2234 | static int u132_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, |
2235 | gfp_t mem_flags) | |
d774efea | 2236 | { |
b40f8d39 DW |
2237 | struct u132 *u132 = hcd_to_u132(hcd); |
2238 | if (irqs_disabled()) { | |
d0164adc | 2239 | if (gfpflags_allow_blocking(mem_flags)) { |
d5f9e733 | 2240 | printk(KERN_ERR "invalid context for function that might sleep\n"); |
b40f8d39 DW |
2241 | return -EINVAL; |
2242 | } | |
2243 | } | |
2244 | if (u132->going > 1) { | |
2245 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2246 | , u132->going); | |
2247 | return -ENODEV; | |
2248 | } else if (u132->going > 0) { | |
eb231054 AS |
2249 | dev_err(&u132->platform_dev->dev, "device is being removed " |
2250 | "urb=%p\n", urb); | |
b40f8d39 DW |
2251 | return -ESHUTDOWN; |
2252 | } else { | |
2253 | u8 usb_addr = usb_pipedevice(urb->pipe); | |
2254 | u8 usb_endp = usb_pipeendpoint(urb->pipe); | |
2255 | struct usb_device *usb_dev = urb->dev; | |
2256 | if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) { | |
2257 | u8 address = u132->addr[usb_addr].address; | |
2258 | struct u132_udev *udev = &u132->udev[address]; | |
2259 | struct u132_endp *endp = urb->ep->hcpriv; | |
2260 | urb->actual_length = 0; | |
2261 | if (endp) { | |
2262 | unsigned long irqs; | |
2263 | int retval; | |
2264 | spin_lock_irqsave(&endp->queue_lock.slock, | |
2265 | irqs); | |
e9df41c5 AS |
2266 | retval = usb_hcd_link_urb_to_ep(hcd, urb); |
2267 | if (retval == 0) { | |
2268 | retval = queue_int_on_old_endpoint( | |
2269 | u132, udev, urb, | |
2270 | usb_dev, endp, | |
2271 | usb_addr, usb_endp, | |
2272 | address); | |
2273 | if (retval) | |
2274 | usb_hcd_unlink_urb_from_ep( | |
b40f8d39 DW |
2275 | hcd, urb); |
2276 | } | |
2277 | spin_unlock_irqrestore(&endp->queue_lock.slock, | |
2278 | irqs); | |
2279 | if (retval) { | |
2280 | return retval; | |
2281 | } else { | |
2282 | u132_endp_queue_work(u132, endp, | |
2283 | msecs_to_jiffies(urb->interval)) | |
2284 | ; | |
2285 | return 0; | |
e9df41c5 | 2286 | } |
b40f8d39 DW |
2287 | } else if (u132->num_endpoints == MAX_U132_ENDPS) { |
2288 | return -EINVAL; | |
2289 | } else { /*(endp == NULL) */ | |
2290 | return create_endpoint_and_queue_int(u132, udev, | |
e9df41c5 AS |
2291 | urb, usb_dev, usb_addr, |
2292 | usb_endp, address, mem_flags); | |
b40f8d39 DW |
2293 | } |
2294 | } else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { | |
2295 | dev_err(&u132->platform_dev->dev, "the hardware does no" | |
2296 | "t support PIPE_ISOCHRONOUS\n"); | |
2297 | return -EINVAL; | |
2298 | } else if (usb_pipetype(urb->pipe) == PIPE_BULK) { | |
2299 | u8 address = u132->addr[usb_addr].address; | |
2300 | struct u132_udev *udev = &u132->udev[address]; | |
2301 | struct u132_endp *endp = urb->ep->hcpriv; | |
2302 | urb->actual_length = 0; | |
2303 | if (endp) { | |
2304 | unsigned long irqs; | |
2305 | int retval; | |
2306 | spin_lock_irqsave(&endp->queue_lock.slock, | |
2307 | irqs); | |
e9df41c5 AS |
2308 | retval = usb_hcd_link_urb_to_ep(hcd, urb); |
2309 | if (retval == 0) { | |
2310 | retval = queue_bulk_on_old_endpoint( | |
2311 | u132, udev, urb, | |
2312 | usb_dev, endp, | |
2313 | usb_addr, usb_endp, | |
2314 | address); | |
2315 | if (retval) | |
2316 | usb_hcd_unlink_urb_from_ep( | |
b40f8d39 DW |
2317 | hcd, urb); |
2318 | } | |
2319 | spin_unlock_irqrestore(&endp->queue_lock.slock, | |
2320 | irqs); | |
2321 | if (retval) { | |
2322 | return retval; | |
2323 | } else { | |
2324 | u132_endp_queue_work(u132, endp, 0); | |
2325 | return 0; | |
e9df41c5 | 2326 | } |
b40f8d39 DW |
2327 | } else if (u132->num_endpoints == MAX_U132_ENDPS) { |
2328 | return -EINVAL; | |
2329 | } else | |
2330 | return create_endpoint_and_queue_bulk(u132, | |
e9df41c5 | 2331 | udev, urb, usb_dev, usb_addr, |
b40f8d39 DW |
2332 | usb_endp, address, mem_flags); |
2333 | } else { | |
2334 | struct u132_endp *endp = urb->ep->hcpriv; | |
2335 | u16 urb_size = 8; | |
2336 | u8 *b = urb->setup_packet; | |
2337 | int i = 0; | |
2338 | char data[30 * 3 + 4]; | |
2339 | char *d = data; | |
2340 | int m = (sizeof(data) - 1) / 3; | |
2341 | int l = 0; | |
2342 | data[0] = 0; | |
2343 | while (urb_size-- > 0) { | |
2344 | if (i > m) { | |
2345 | } else if (i++ < m) { | |
2346 | int w = sprintf(d, " %02X", *b++); | |
2347 | d += w; | |
2348 | l += w; | |
2349 | } else | |
2350 | d += sprintf(d, " .."); | |
2351 | } | |
2352 | if (endp) { | |
2353 | unsigned long irqs; | |
2354 | int retval; | |
2355 | spin_lock_irqsave(&endp->queue_lock.slock, | |
2356 | irqs); | |
e9df41c5 AS |
2357 | retval = usb_hcd_link_urb_to_ep(hcd, urb); |
2358 | if (retval == 0) { | |
2359 | retval = queue_control_on_old_endpoint( | |
2360 | u132, urb, usb_dev, | |
2361 | endp, usb_addr, | |
2362 | usb_endp); | |
2363 | if (retval) | |
2364 | usb_hcd_unlink_urb_from_ep( | |
2365 | hcd, urb); | |
2366 | } | |
b40f8d39 DW |
2367 | spin_unlock_irqrestore(&endp->queue_lock.slock, |
2368 | irqs); | |
2369 | if (retval) { | |
2370 | return retval; | |
2371 | } else { | |
2372 | u132_endp_queue_work(u132, endp, 0); | |
2373 | return 0; | |
2374 | } | |
2375 | } else if (u132->num_endpoints == MAX_U132_ENDPS) { | |
2376 | return -EINVAL; | |
2377 | } else | |
2378 | return create_endpoint_and_queue_control(u132, | |
e9df41c5 | 2379 | urb, usb_dev, usb_addr, usb_endp, |
b40f8d39 DW |
2380 | mem_flags); |
2381 | } | |
2382 | } | |
d774efea TO |
2383 | } |
2384 | ||
2385 | static int dequeue_from_overflow_chain(struct u132 *u132, | |
b40f8d39 DW |
2386 | struct u132_endp *endp, struct urb *urb) |
2387 | { | |
4e5d7a82 GT |
2388 | struct u132_urbq *urbq; |
2389 | ||
2390 | list_for_each_entry(urbq, &endp->urb_more, urb_more) { | |
b40f8d39 DW |
2391 | if (urbq->urb == urb) { |
2392 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
4e5d7a82 | 2393 | list_del(&urbq->urb_more); |
b40f8d39 DW |
2394 | endp->queue_size -= 1; |
2395 | urb->error_count = 0; | |
4a00027d | 2396 | usb_hcd_giveback_urb(hcd, urb, 0); |
b40f8d39 DW |
2397 | return 0; |
2398 | } else | |
2399 | continue; | |
2400 | } | |
2401 | dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]=%p ring" | |
2402 | "[%d] %c%c usb_endp=%d usb_addr=%d size=%d next=%04X last=%04X" | |
2403 | "\n", urb, endp->endp_number, endp, endp->ring->number, | |
2404 | endp->input ? 'I' : ' ', endp->output ? 'O' : ' ', | |
2405 | endp->usb_endp, endp->usb_addr, endp->queue_size, | |
2406 | endp->queue_next, endp->queue_last); | |
2407 | return -EINVAL; | |
d774efea TO |
2408 | } |
2409 | ||
2410 | static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp, | |
e9df41c5 | 2411 | struct urb *urb, int status) |
d774efea | 2412 | { |
b40f8d39 | 2413 | unsigned long irqs; |
e9df41c5 AS |
2414 | int rc; |
2415 | ||
b40f8d39 | 2416 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
e9df41c5 AS |
2417 | rc = usb_hcd_check_unlink_urb(u132_to_hcd(u132), urb, status); |
2418 | if (rc) { | |
2419 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2420 | return rc; | |
2421 | } | |
b40f8d39 DW |
2422 | if (endp->queue_size == 0) { |
2423 | dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]" | |
2424 | "=%p ring[%d] %c%c usb_endp=%d usb_addr=%d\n", urb, | |
2425 | endp->endp_number, endp, endp->ring->number, | |
2426 | endp->input ? 'I' : ' ', endp->output ? 'O' : ' ', | |
2427 | endp->usb_endp, endp->usb_addr); | |
2428 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2429 | return -EINVAL; | |
2430 | } | |
2431 | if (urb == endp->urb_list[ENDP_QUEUE_MASK & endp->queue_next]) { | |
2432 | if (endp->active) { | |
2433 | endp->dequeueing = 1; | |
2434 | endp->edset_flush = 1; | |
2435 | u132_endp_queue_work(u132, endp, 0); | |
2436 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2437 | return 0; | |
2438 | } else { | |
2439 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
4a00027d | 2440 | u132_hcd_abandon_urb(u132, endp, urb, status); |
b40f8d39 DW |
2441 | return 0; |
2442 | } | |
2443 | } else { | |
2444 | u16 queue_list = 0; | |
2445 | u16 queue_size = endp->queue_size; | |
2446 | u16 queue_scan = endp->queue_next; | |
2447 | struct urb **urb_slot = NULL; | |
2448 | while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) { | |
2449 | if (urb == endp->urb_list[ENDP_QUEUE_MASK & | |
2450 | ++queue_scan]) { | |
2451 | urb_slot = &endp->urb_list[ENDP_QUEUE_MASK & | |
2452 | queue_scan]; | |
2453 | break; | |
2454 | } else | |
2455 | continue; | |
2456 | } | |
2457 | while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) { | |
2458 | *urb_slot = endp->urb_list[ENDP_QUEUE_MASK & | |
2459 | ++queue_scan]; | |
2460 | urb_slot = &endp->urb_list[ENDP_QUEUE_MASK & | |
2461 | queue_scan]; | |
2462 | } | |
2463 | if (urb_slot) { | |
2464 | struct usb_hcd *hcd = u132_to_hcd(u132); | |
e9df41c5 AS |
2465 | |
2466 | usb_hcd_unlink_urb_from_ep(hcd, urb); | |
b40f8d39 DW |
2467 | endp->queue_size -= 1; |
2468 | if (list_empty(&endp->urb_more)) { | |
2469 | spin_unlock_irqrestore(&endp->queue_lock.slock, | |
2470 | irqs); | |
2471 | } else { | |
2472 | struct list_head *next = endp->urb_more.next; | |
2473 | struct u132_urbq *urbq = list_entry(next, | |
2474 | struct u132_urbq, urb_more); | |
2475 | list_del(next); | |
2476 | *urb_slot = urbq->urb; | |
2477 | spin_unlock_irqrestore(&endp->queue_lock.slock, | |
2478 | irqs); | |
2479 | kfree(urbq); | |
2480 | } urb->error_count = 0; | |
4a00027d | 2481 | usb_hcd_giveback_urb(hcd, urb, status); |
b40f8d39 DW |
2482 | return 0; |
2483 | } else if (list_empty(&endp->urb_more)) { | |
2484 | dev_err(&u132->platform_dev->dev, "urb=%p not found in " | |
2485 | "endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr" | |
2486 | "=%d size=%d next=%04X last=%04X\n", urb, | |
2487 | endp->endp_number, endp, endp->ring->number, | |
2488 | endp->input ? 'I' : ' ', | |
2489 | endp->output ? 'O' : ' ', endp->usb_endp, | |
2490 | endp->usb_addr, endp->queue_size, | |
2491 | endp->queue_next, endp->queue_last); | |
2492 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2493 | return -EINVAL; | |
2494 | } else { | |
e9df41c5 AS |
2495 | int retval; |
2496 | ||
2497 | usb_hcd_unlink_urb_from_ep(u132_to_hcd(u132), urb); | |
2498 | retval = dequeue_from_overflow_chain(u132, endp, | |
b40f8d39 DW |
2499 | urb); |
2500 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); | |
2501 | return retval; | |
2502 | } | |
2503 | } | |
d774efea TO |
2504 | } |
2505 | ||
e9df41c5 | 2506 | static int u132_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) |
d774efea | 2507 | { |
b40f8d39 DW |
2508 | struct u132 *u132 = hcd_to_u132(hcd); |
2509 | if (u132->going > 2) { | |
2510 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2511 | , u132->going); | |
2512 | return -ENODEV; | |
2513 | } else { | |
2514 | u8 usb_addr = usb_pipedevice(urb->pipe); | |
2515 | u8 usb_endp = usb_pipeendpoint(urb->pipe); | |
2516 | u8 address = u132->addr[usb_addr].address; | |
2517 | struct u132_udev *udev = &u132->udev[address]; | |
2518 | if (usb_pipein(urb->pipe)) { | |
2519 | u8 endp_number = udev->endp_number_in[usb_endp]; | |
2520 | struct u132_endp *endp = u132->endp[endp_number - 1]; | |
2521 | return u132_endp_urb_dequeue(u132, endp, urb, status); | |
2522 | } else { | |
2523 | u8 endp_number = udev->endp_number_out[usb_endp]; | |
2524 | struct u132_endp *endp = u132->endp[endp_number - 1]; | |
2525 | return u132_endp_urb_dequeue(u132, endp, urb, status); | |
2526 | } | |
2527 | } | |
d774efea TO |
2528 | } |
2529 | ||
2530 | static void u132_endpoint_disable(struct usb_hcd *hcd, | |
b40f8d39 DW |
2531 | struct usb_host_endpoint *hep) |
2532 | { | |
2533 | struct u132 *u132 = hcd_to_u132(hcd); | |
2534 | if (u132->going > 2) { | |
2535 | dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p hep=%p" | |
2536 | ") has been removed %d\n", u132, hcd, hep, | |
2537 | u132->going); | |
2538 | } else { | |
2539 | struct u132_endp *endp = hep->hcpriv; | |
2540 | if (endp) | |
2541 | u132_endp_put_kref(u132, endp); | |
2542 | } | |
d774efea TO |
2543 | } |
2544 | ||
2545 | static int u132_get_frame(struct usb_hcd *hcd) | |
2546 | { | |
b40f8d39 DW |
2547 | struct u132 *u132 = hcd_to_u132(hcd); |
2548 | if (u132->going > 1) { | |
2549 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2550 | , u132->going); | |
2551 | return -ENODEV; | |
2552 | } else if (u132->going > 0) { | |
2553 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2554 | return -ESHUTDOWN; | |
2555 | } else { | |
2556 | int frame = 0; | |
2557 | dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n"); | |
3225f3da | 2558 | mdelay(100); |
b40f8d39 DW |
2559 | return frame; |
2560 | } | |
d774efea TO |
2561 | } |
2562 | ||
2563 | static int u132_roothub_descriptor(struct u132 *u132, | |
b40f8d39 DW |
2564 | struct usb_hub_descriptor *desc) |
2565 | { | |
2566 | int retval; | |
2567 | u16 temp; | |
2568 | u32 rh_a = -1; | |
2569 | u32 rh_b = -1; | |
2570 | retval = u132_read_pcimem(u132, roothub.a, &rh_a); | |
2571 | if (retval) | |
2572 | return retval; | |
0ce6fe9e | 2573 | desc->bDescriptorType = USB_DT_HUB; |
b40f8d39 DW |
2574 | desc->bPwrOn2PwrGood = (rh_a & RH_A_POTPGT) >> 24; |
2575 | desc->bHubContrCurrent = 0; | |
2576 | desc->bNbrPorts = u132->num_ports; | |
2577 | temp = 1 + (u132->num_ports / 8); | |
2578 | desc->bDescLength = 7 + 2 * temp; | |
a7cf697d | 2579 | temp = HUB_CHAR_COMMON_LPSM | HUB_CHAR_COMMON_OCPM; |
b40f8d39 | 2580 | if (rh_a & RH_A_NPS) |
a7cf697d | 2581 | temp |= HUB_CHAR_NO_LPSM; |
b40f8d39 | 2582 | if (rh_a & RH_A_PSM) |
a7cf697d | 2583 | temp |= HUB_CHAR_INDV_PORT_LPSM; |
b40f8d39 | 2584 | if (rh_a & RH_A_NOCP) |
a7cf697d | 2585 | temp |= HUB_CHAR_NO_OCPM; |
b40f8d39 | 2586 | else if (rh_a & RH_A_OCPM) |
a7cf697d | 2587 | temp |= HUB_CHAR_INDV_PORT_OCPM; |
b40f8d39 DW |
2588 | desc->wHubCharacteristics = cpu_to_le16(temp); |
2589 | retval = u132_read_pcimem(u132, roothub.b, &rh_b); | |
2590 | if (retval) | |
2591 | return retval; | |
dbe79bbe JY |
2592 | memset(desc->u.hs.DeviceRemovable, 0xff, |
2593 | sizeof(desc->u.hs.DeviceRemovable)); | |
2594 | desc->u.hs.DeviceRemovable[0] = rh_b & RH_B_DR; | |
b40f8d39 | 2595 | if (u132->num_ports > 7) { |
dbe79bbe JY |
2596 | desc->u.hs.DeviceRemovable[1] = (rh_b & RH_B_DR) >> 8; |
2597 | desc->u.hs.DeviceRemovable[2] = 0xff; | |
b40f8d39 | 2598 | } else |
dbe79bbe | 2599 | desc->u.hs.DeviceRemovable[1] = 0xff; |
b40f8d39 | 2600 | return 0; |
d774efea TO |
2601 | } |
2602 | ||
2603 | static int u132_roothub_status(struct u132 *u132, __le32 *desc) | |
2604 | { | |
b40f8d39 DW |
2605 | u32 rh_status = -1; |
2606 | int ret_status = u132_read_pcimem(u132, roothub.status, &rh_status); | |
2607 | *desc = cpu_to_le32(rh_status); | |
2608 | return ret_status; | |
d774efea TO |
2609 | } |
2610 | ||
2611 | static int u132_roothub_portstatus(struct u132 *u132, __le32 *desc, u16 wIndex) | |
2612 | { | |
b40f8d39 DW |
2613 | if (wIndex == 0 || wIndex > u132->num_ports) { |
2614 | return -EINVAL; | |
2615 | } else { | |
2616 | int port = wIndex - 1; | |
2617 | u32 rh_portstatus = -1; | |
2618 | int ret_portstatus = u132_read_pcimem(u132, | |
2619 | roothub.portstatus[port], &rh_portstatus); | |
2620 | *desc = cpu_to_le32(rh_portstatus); | |
2621 | if (*(u16 *) (desc + 2)) { | |
2622 | dev_info(&u132->platform_dev->dev, "Port %d Status Chan" | |
2623 | "ge = %08X\n", port, *desc); | |
2624 | } | |
2625 | return ret_portstatus; | |
2626 | } | |
d774efea TO |
2627 | } |
2628 | ||
2629 | ||
2630 | /* this timer value might be vendor-specific ... */ | |
2631 | #define PORT_RESET_HW_MSEC 10 | |
2632 | #define PORT_RESET_MSEC 10 | |
2633 | /* wrap-aware logic morphed from <linux/jiffies.h> */ | |
2634 | #define tick_before(t1, t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0) | |
2635 | static int u132_roothub_portreset(struct u132 *u132, int port_index) | |
2636 | { | |
b40f8d39 DW |
2637 | int retval; |
2638 | u32 fmnumber; | |
2639 | u16 now; | |
2640 | u16 reset_done; | |
2641 | retval = u132_read_pcimem(u132, fmnumber, &fmnumber); | |
2642 | if (retval) | |
2643 | return retval; | |
2644 | now = fmnumber; | |
2645 | reset_done = now + PORT_RESET_MSEC; | |
2646 | do { | |
2647 | u32 portstat; | |
2648 | do { | |
2649 | retval = u132_read_pcimem(u132, | |
2650 | roothub.portstatus[port_index], &portstat); | |
2651 | if (retval) | |
2652 | return retval; | |
2653 | if (RH_PS_PRS & portstat) | |
2654 | continue; | |
2655 | else | |
2656 | break; | |
2657 | } while (tick_before(now, reset_done)); | |
2658 | if (RH_PS_PRS & portstat) | |
2659 | return -ENODEV; | |
2660 | if (RH_PS_CCS & portstat) { | |
2661 | if (RH_PS_PRSC & portstat) { | |
2662 | retval = u132_write_pcimem(u132, | |
2663 | roothub.portstatus[port_index], | |
2664 | RH_PS_PRSC); | |
2665 | if (retval) | |
2666 | return retval; | |
2667 | } | |
2668 | } else | |
2669 | break; /* start the next reset, | |
2670 | sleep till it's probably done */ | |
2671 | retval = u132_write_pcimem(u132, roothub.portstatus[port_index], | |
2672 | RH_PS_PRS); | |
2673 | if (retval) | |
2674 | return retval; | |
2675 | msleep(PORT_RESET_HW_MSEC); | |
2676 | retval = u132_read_pcimem(u132, fmnumber, &fmnumber); | |
2677 | if (retval) | |
2678 | return retval; | |
2679 | now = fmnumber; | |
2680 | } while (tick_before(now, reset_done)); | |
2681 | return 0; | |
d774efea TO |
2682 | } |
2683 | ||
2684 | static int u132_roothub_setportfeature(struct u132 *u132, u16 wValue, | |
b40f8d39 DW |
2685 | u16 wIndex) |
2686 | { | |
2687 | if (wIndex == 0 || wIndex > u132->num_ports) { | |
2688 | return -EINVAL; | |
2689 | } else { | |
b40f8d39 DW |
2690 | int port_index = wIndex - 1; |
2691 | struct u132_port *port = &u132->port[port_index]; | |
2692 | port->Status &= ~(1 << wValue); | |
2693 | switch (wValue) { | |
2694 | case USB_PORT_FEAT_SUSPEND: | |
8602b08a SK |
2695 | return u132_write_pcimem(u132, |
2696 | roothub.portstatus[port_index], RH_PS_PSS); | |
b40f8d39 | 2697 | case USB_PORT_FEAT_POWER: |
8602b08a SK |
2698 | return u132_write_pcimem(u132, |
2699 | roothub.portstatus[port_index], RH_PS_PPS); | |
b40f8d39 | 2700 | case USB_PORT_FEAT_RESET: |
8602b08a | 2701 | return u132_roothub_portreset(u132, port_index); |
b40f8d39 DW |
2702 | default: |
2703 | return -EPIPE; | |
2704 | } | |
2705 | } | |
d774efea TO |
2706 | } |
2707 | ||
2708 | static int u132_roothub_clearportfeature(struct u132 *u132, u16 wValue, | |
b40f8d39 DW |
2709 | u16 wIndex) |
2710 | { | |
2711 | if (wIndex == 0 || wIndex > u132->num_ports) { | |
2712 | return -EINVAL; | |
2713 | } else { | |
2714 | int port_index = wIndex - 1; | |
2715 | u32 temp; | |
b40f8d39 DW |
2716 | struct u132_port *port = &u132->port[port_index]; |
2717 | port->Status &= ~(1 << wValue); | |
2718 | switch (wValue) { | |
2719 | case USB_PORT_FEAT_ENABLE: | |
2720 | temp = RH_PS_CCS; | |
2721 | break; | |
2722 | case USB_PORT_FEAT_C_ENABLE: | |
2723 | temp = RH_PS_PESC; | |
2724 | break; | |
2725 | case USB_PORT_FEAT_SUSPEND: | |
2726 | temp = RH_PS_POCI; | |
2727 | if ((u132->hc_control & OHCI_CTRL_HCFS) | |
2728 | != OHCI_USB_OPER) { | |
2729 | dev_err(&u132->platform_dev->dev, "TODO resume_" | |
2730 | "root_hub\n"); | |
2731 | } | |
2732 | break; | |
2733 | case USB_PORT_FEAT_C_SUSPEND: | |
2734 | temp = RH_PS_PSSC; | |
2735 | break; | |
2736 | case USB_PORT_FEAT_POWER: | |
2737 | temp = RH_PS_LSDA; | |
2738 | break; | |
2739 | case USB_PORT_FEAT_C_CONNECTION: | |
2740 | temp = RH_PS_CSC; | |
2741 | break; | |
2742 | case USB_PORT_FEAT_C_OVER_CURRENT: | |
2743 | temp = RH_PS_OCIC; | |
2744 | break; | |
2745 | case USB_PORT_FEAT_C_RESET: | |
2746 | temp = RH_PS_PRSC; | |
2747 | break; | |
2748 | default: | |
2749 | return -EPIPE; | |
2750 | } | |
8602b08a SK |
2751 | return u132_write_pcimem(u132, roothub.portstatus[port_index], |
2752 | temp); | |
b40f8d39 | 2753 | } |
d774efea TO |
2754 | } |
2755 | ||
2756 | ||
2757 | /* the virtual root hub timer IRQ checks for hub status*/ | |
2758 | static int u132_hub_status_data(struct usb_hcd *hcd, char *buf) | |
2759 | { | |
b40f8d39 DW |
2760 | struct u132 *u132 = hcd_to_u132(hcd); |
2761 | if (u132->going > 1) { | |
2762 | dev_err(&u132->platform_dev->dev, "device hcd=%p has been remov" | |
2763 | "ed %d\n", hcd, u132->going); | |
2764 | return -ENODEV; | |
2765 | } else if (u132->going > 0) { | |
2766 | dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" | |
2767 | "ed\n", hcd); | |
2768 | return -ESHUTDOWN; | |
2769 | } else { | |
2770 | int i, changed = 0, length = 1; | |
2771 | if (u132->flags & OHCI_QUIRK_AMD756) { | |
2772 | if ((u132->hc_roothub_a & RH_A_NDP) > MAX_ROOT_PORTS) { | |
2773 | dev_err(&u132->platform_dev->dev, "bogus NDP, r" | |
2774 | "ereads as NDP=%d\n", | |
2775 | u132->hc_roothub_a & RH_A_NDP); | |
2776 | goto done; | |
2777 | } | |
2778 | } | |
2779 | if (u132->hc_roothub_status & (RH_HS_LPSC | RH_HS_OCIC)) | |
2780 | buf[0] = changed = 1; | |
2781 | else | |
2782 | buf[0] = 0; | |
2783 | if (u132->num_ports > 7) { | |
2784 | buf[1] = 0; | |
2785 | length++; | |
2786 | } | |
2787 | for (i = 0; i < u132->num_ports; i++) { | |
2788 | if (u132->hc_roothub_portstatus[i] & (RH_PS_CSC | | |
2789 | RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC | | |
2790 | RH_PS_PRSC)) { | |
2791 | changed = 1; | |
2792 | if (i < 7) | |
2793 | buf[0] |= 1 << (i + 1); | |
2794 | else | |
2795 | buf[1] |= 1 << (i - 7); | |
2796 | continue; | |
2797 | } | |
2798 | if (!(u132->hc_roothub_portstatus[i] & RH_PS_CCS)) | |
2799 | continue; | |
2800 | ||
2801 | if ((u132->hc_roothub_portstatus[i] & RH_PS_PSS)) | |
2802 | continue; | |
2803 | } | |
2804 | done: | |
2805 | return changed ? length : 0; | |
2806 | } | |
d774efea TO |
2807 | } |
2808 | ||
2809 | static int u132_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, | |
b40f8d39 DW |
2810 | u16 wIndex, char *buf, u16 wLength) |
2811 | { | |
2812 | struct u132 *u132 = hcd_to_u132(hcd); | |
2813 | if (u132->going > 1) { | |
2814 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2815 | , u132->going); | |
2816 | return -ENODEV; | |
2817 | } else if (u132->going > 0) { | |
2818 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2819 | return -ESHUTDOWN; | |
2820 | } else { | |
2821 | int retval = 0; | |
2822 | mutex_lock(&u132->sw_lock); | |
2823 | switch (typeReq) { | |
2824 | case ClearHubFeature: | |
2825 | switch (wValue) { | |
2826 | case C_HUB_OVER_CURRENT: | |
2827 | case C_HUB_LOCAL_POWER: | |
2828 | break; | |
2829 | default: | |
2830 | goto stall; | |
2831 | } | |
2832 | break; | |
2833 | case SetHubFeature: | |
2834 | switch (wValue) { | |
2835 | case C_HUB_OVER_CURRENT: | |
2836 | case C_HUB_LOCAL_POWER: | |
2837 | break; | |
2838 | default: | |
2839 | goto stall; | |
2840 | } | |
2841 | break; | |
2842 | case ClearPortFeature:{ | |
2843 | retval = u132_roothub_clearportfeature(u132, | |
2844 | wValue, wIndex); | |
2845 | if (retval) | |
2846 | goto error; | |
2847 | break; | |
2848 | } | |
2849 | case GetHubDescriptor:{ | |
2850 | retval = u132_roothub_descriptor(u132, | |
2851 | (struct usb_hub_descriptor *)buf); | |
2852 | if (retval) | |
2853 | goto error; | |
2854 | break; | |
2855 | } | |
2856 | case GetHubStatus:{ | |
2857 | retval = u132_roothub_status(u132, | |
2858 | (__le32 *) buf); | |
2859 | if (retval) | |
2860 | goto error; | |
2861 | break; | |
2862 | } | |
2863 | case GetPortStatus:{ | |
2864 | retval = u132_roothub_portstatus(u132, | |
2865 | (__le32 *) buf, wIndex); | |
2866 | if (retval) | |
2867 | goto error; | |
2868 | break; | |
2869 | } | |
2870 | case SetPortFeature:{ | |
2871 | retval = u132_roothub_setportfeature(u132, | |
2872 | wValue, wIndex); | |
2873 | if (retval) | |
2874 | goto error; | |
2875 | break; | |
2876 | } | |
2877 | default: | |
2878 | goto stall; | |
2879 | error: | |
2880 | u132_disable(u132); | |
2881 | u132->going = 1; | |
2882 | break; | |
2883 | stall: | |
2884 | retval = -EPIPE; | |
2885 | break; | |
2886 | } | |
2887 | mutex_unlock(&u132->sw_lock); | |
2888 | return retval; | |
2889 | } | |
d774efea TO |
2890 | } |
2891 | ||
2892 | static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num) | |
2893 | { | |
b40f8d39 DW |
2894 | struct u132 *u132 = hcd_to_u132(hcd); |
2895 | if (u132->going > 1) { | |
2896 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2897 | , u132->going); | |
2898 | return -ENODEV; | |
2899 | } else if (u132->going > 0) { | |
2900 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2901 | return -ESHUTDOWN; | |
2902 | } else | |
2903 | return 0; | |
d774efea TO |
2904 | } |
2905 | ||
d774efea TO |
2906 | |
2907 | #ifdef CONFIG_PM | |
d774efea TO |
2908 | static int u132_bus_suspend(struct usb_hcd *hcd) |
2909 | { | |
b40f8d39 DW |
2910 | struct u132 *u132 = hcd_to_u132(hcd); |
2911 | if (u132->going > 1) { | |
2912 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2913 | , u132->going); | |
2914 | return -ENODEV; | |
2915 | } else if (u132->going > 0) { | |
2916 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2917 | return -ESHUTDOWN; | |
2918 | } else | |
2919 | return 0; | |
d774efea TO |
2920 | } |
2921 | ||
2922 | static int u132_bus_resume(struct usb_hcd *hcd) | |
2923 | { | |
b40f8d39 DW |
2924 | struct u132 *u132 = hcd_to_u132(hcd); |
2925 | if (u132->going > 1) { | |
2926 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
2927 | , u132->going); | |
2928 | return -ENODEV; | |
2929 | } else if (u132->going > 0) { | |
2930 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
2931 | return -ESHUTDOWN; | |
2932 | } else | |
2933 | return 0; | |
d774efea TO |
2934 | } |
2935 | ||
2936 | #else | |
d774efea TO |
2937 | #define u132_bus_suspend NULL |
2938 | #define u132_bus_resume NULL | |
2939 | #endif | |
0b88b1c0 | 2940 | static const struct hc_driver u132_hc_driver = { |
b40f8d39 DW |
2941 | .description = hcd_name, |
2942 | .hcd_priv_size = sizeof(struct u132), | |
2943 | .irq = NULL, | |
2944 | .flags = HCD_USB11 | HCD_MEMORY, | |
2945 | .reset = u132_hcd_reset, | |
2946 | .start = u132_hcd_start, | |
b40f8d39 DW |
2947 | .stop = u132_hcd_stop, |
2948 | .urb_enqueue = u132_urb_enqueue, | |
2949 | .urb_dequeue = u132_urb_dequeue, | |
2950 | .endpoint_disable = u132_endpoint_disable, | |
2951 | .get_frame_number = u132_get_frame, | |
2952 | .hub_status_data = u132_hub_status_data, | |
2953 | .hub_control = u132_hub_control, | |
2954 | .bus_suspend = u132_bus_suspend, | |
2955 | .bus_resume = u132_bus_resume, | |
2956 | .start_port_reset = u132_start_port_reset, | |
d774efea TO |
2957 | }; |
2958 | ||
2959 | /* | |
2960 | * This function may be called by the USB core whilst the "usb_all_devices_rwsem" | |
2961 | * is held for writing, thus this module must not call usb_remove_hcd() | |
2962 | * synchronously - but instead should immediately stop activity to the | |
0779bf2d | 2963 | * device and asynchronously call usb_remove_hcd() |
d774efea | 2964 | */ |
fb4e98ab | 2965 | static int u132_remove(struct platform_device *pdev) |
d774efea | 2966 | { |
b40f8d39 DW |
2967 | struct usb_hcd *hcd = platform_get_drvdata(pdev); |
2968 | if (hcd) { | |
2969 | struct u132 *u132 = hcd_to_u132(hcd); | |
2970 | if (u132->going++ > 1) { | |
2971 | dev_err(&u132->platform_dev->dev, "already being remove" | |
4b87361d | 2972 | "d\n"); |
b40f8d39 DW |
2973 | return -ENODEV; |
2974 | } else { | |
2975 | int rings = MAX_U132_RINGS; | |
2976 | int endps = MAX_U132_ENDPS; | |
2977 | dev_err(&u132->platform_dev->dev, "removing device u132" | |
4b87361d | 2978 | ".%d\n", u132->sequence_num); |
b40f8d39 DW |
2979 | msleep(100); |
2980 | mutex_lock(&u132->sw_lock); | |
2981 | u132_monitor_cancel_work(u132); | |
2982 | while (rings-- > 0) { | |
2983 | struct u132_ring *ring = &u132->ring[rings]; | |
2984 | u132_ring_cancel_work(u132, ring); | |
2985 | } while (endps-- > 0) { | |
2986 | struct u132_endp *endp = u132->endp[endps]; | |
2987 | if (endp) | |
2988 | u132_endp_cancel_work(u132, endp); | |
2989 | } | |
2990 | u132->going += 1; | |
2991 | printk(KERN_INFO "removing device u132.%d\n", | |
2992 | u132->sequence_num); | |
2993 | mutex_unlock(&u132->sw_lock); | |
2994 | usb_remove_hcd(hcd); | |
2995 | u132_u132_put_kref(u132); | |
2996 | return 0; | |
2997 | } | |
2998 | } else | |
2999 | return 0; | |
d774efea TO |
3000 | } |
3001 | ||
3002 | static void u132_initialise(struct u132 *u132, struct platform_device *pdev) | |
3003 | { | |
b40f8d39 DW |
3004 | int rings = MAX_U132_RINGS; |
3005 | int ports = MAX_U132_PORTS; | |
3006 | int addrs = MAX_U132_ADDRS; | |
3007 | int udevs = MAX_U132_UDEVS; | |
3008 | int endps = MAX_U132_ENDPS; | |
d4f09e28 | 3009 | u132->board = dev_get_platdata(&pdev->dev); |
b40f8d39 DW |
3010 | u132->platform_dev = pdev; |
3011 | u132->power = 0; | |
3012 | u132->reset = 0; | |
3013 | mutex_init(&u132->sw_lock); | |
50d8ca9b | 3014 | mutex_init(&u132->scheduler_lock); |
b40f8d39 DW |
3015 | while (rings-- > 0) { |
3016 | struct u132_ring *ring = &u132->ring[rings]; | |
3017 | ring->u132 = u132; | |
3018 | ring->number = rings + 1; | |
3019 | ring->length = 0; | |
3020 | ring->curr_endp = NULL; | |
3021 | INIT_DELAYED_WORK(&ring->scheduler, | |
c4028958 | 3022 | u132_hcd_ring_work_scheduler); |
b40f8d39 DW |
3023 | } |
3024 | mutex_lock(&u132->sw_lock); | |
3025 | INIT_DELAYED_WORK(&u132->monitor, u132_hcd_monitor_work); | |
3026 | while (ports-- > 0) { | |
3027 | struct u132_port *port = &u132->port[ports]; | |
3028 | port->u132 = u132; | |
3029 | port->reset = 0; | |
3030 | port->enable = 0; | |
3031 | port->power = 0; | |
3032 | port->Status = 0; | |
3033 | } | |
3034 | while (addrs-- > 0) { | |
3035 | struct u132_addr *addr = &u132->addr[addrs]; | |
3036 | addr->address = 0; | |
3037 | } | |
3038 | while (udevs-- > 0) { | |
3039 | struct u132_udev *udev = &u132->udev[udevs]; | |
3040 | int i = ARRAY_SIZE(udev->endp_number_in); | |
3041 | int o = ARRAY_SIZE(udev->endp_number_out); | |
3042 | udev->usb_device = NULL; | |
3043 | udev->udev_number = 0; | |
3044 | udev->usb_addr = 0; | |
3045 | udev->portnumber = 0; | |
3046 | while (i-- > 0) | |
3047 | udev->endp_number_in[i] = 0; | |
3048 | ||
3049 | while (o-- > 0) | |
3050 | udev->endp_number_out[o] = 0; | |
3051 | ||
3052 | } | |
3053 | while (endps-- > 0) | |
3054 | u132->endp[endps] = NULL; | |
3055 | ||
3056 | mutex_unlock(&u132->sw_lock); | |
d774efea TO |
3057 | } |
3058 | ||
41ac7b3a | 3059 | static int u132_probe(struct platform_device *pdev) |
d774efea | 3060 | { |
b40f8d39 DW |
3061 | struct usb_hcd *hcd; |
3062 | int retval; | |
3063 | u32 control; | |
3064 | u32 rh_a = -1; | |
3065 | u32 num_ports; | |
3066 | ||
3067 | msleep(100); | |
3068 | if (u132_exiting > 0) | |
3069 | return -ENODEV; | |
3070 | ||
3071 | retval = ftdi_write_pcimem(pdev, intrdisable, OHCI_INTR_MIE); | |
3072 | if (retval) | |
3073 | return retval; | |
3074 | retval = ftdi_read_pcimem(pdev, control, &control); | |
3075 | if (retval) | |
3076 | return retval; | |
3077 | retval = ftdi_read_pcimem(pdev, roothub.a, &rh_a); | |
3078 | if (retval) | |
3079 | return retval; | |
3080 | num_ports = rh_a & RH_A_NDP; /* refuse to confuse usbcore */ | |
3081 | if (pdev->dev.dma_mask) | |
3082 | return -EINVAL; | |
3083 | ||
7071a3ce | 3084 | hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, dev_name(&pdev->dev)); |
b40f8d39 DW |
3085 | if (!hcd) { |
3086 | printk(KERN_ERR "failed to create the usb hcd struct for U132\n" | |
3087 | ); | |
3088 | ftdi_elan_gone_away(pdev); | |
3089 | return -ENOMEM; | |
3090 | } else { | |
b40f8d39 | 3091 | struct u132 *u132 = hcd_to_u132(hcd); |
6641445c | 3092 | retval = 0; |
b40f8d39 DW |
3093 | hcd->rsrc_start = 0; |
3094 | mutex_lock(&u132_module_lock); | |
3095 | list_add_tail(&u132->u132_list, &u132_static_list); | |
3096 | u132->sequence_num = ++u132_instances; | |
3097 | mutex_unlock(&u132_module_lock); | |
3098 | u132_u132_init_kref(u132); | |
3099 | u132_initialise(u132, pdev); | |
3100 | hcd->product_desc = "ELAN U132 Host Controller"; | |
3101 | retval = usb_add_hcd(hcd, 0, 0); | |
3102 | if (retval != 0) { | |
3103 | dev_err(&u132->platform_dev->dev, "init error %d\n", | |
3104 | retval); | |
3105 | u132_u132_put_kref(u132); | |
3106 | return retval; | |
3107 | } else { | |
3c9740a1 | 3108 | device_wakeup_enable(hcd->self.controller); |
b40f8d39 DW |
3109 | u132_monitor_queue_work(u132, 100); |
3110 | return 0; | |
3111 | } | |
3112 | } | |
d774efea TO |
3113 | } |
3114 | ||
3115 | ||
3116 | #ifdef CONFIG_PM | |
84ebc102 AS |
3117 | /* |
3118 | * for this device there's no useful distinction between the controller | |
ceb6c9c8 | 3119 | * and its root hub. |
84ebc102 | 3120 | */ |
d774efea TO |
3121 | static int u132_suspend(struct platform_device *pdev, pm_message_t state) |
3122 | { | |
b40f8d39 DW |
3123 | struct usb_hcd *hcd = platform_get_drvdata(pdev); |
3124 | struct u132 *u132 = hcd_to_u132(hcd); | |
3125 | if (u132->going > 1) { | |
3126 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
3127 | , u132->going); | |
3128 | return -ENODEV; | |
3129 | } else if (u132->going > 0) { | |
3130 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
3131 | return -ESHUTDOWN; | |
3132 | } else { | |
038eb0ea | 3133 | int retval = 0, ports; |
3a2d5b70 RW |
3134 | |
3135 | switch (state.event) { | |
3136 | case PM_EVENT_FREEZE: | |
b40f8d39 | 3137 | retval = u132_bus_suspend(hcd); |
3a2d5b70 RW |
3138 | break; |
3139 | case PM_EVENT_SUSPEND: | |
3140 | case PM_EVENT_HIBERNATE: | |
038eb0ea | 3141 | ports = MAX_U132_PORTS; |
b40f8d39 DW |
3142 | while (ports-- > 0) { |
3143 | port_power(u132, ports, 0); | |
3144 | } | |
3a2d5b70 RW |
3145 | break; |
3146 | } | |
b40f8d39 DW |
3147 | return retval; |
3148 | } | |
d774efea TO |
3149 | } |
3150 | ||
3151 | static int u132_resume(struct platform_device *pdev) | |
3152 | { | |
b40f8d39 DW |
3153 | struct usb_hcd *hcd = platform_get_drvdata(pdev); |
3154 | struct u132 *u132 = hcd_to_u132(hcd); | |
3155 | if (u132->going > 1) { | |
3156 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" | |
3157 | , u132->going); | |
3158 | return -ENODEV; | |
3159 | } else if (u132->going > 0) { | |
3160 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); | |
3161 | return -ESHUTDOWN; | |
3162 | } else { | |
3163 | int retval = 0; | |
70a1c9e0 | 3164 | if (!u132->port[0].power) { |
b40f8d39 DW |
3165 | int ports = MAX_U132_PORTS; |
3166 | while (ports-- > 0) { | |
3167 | port_power(u132, ports, 1); | |
3168 | } | |
3169 | retval = 0; | |
3170 | } else { | |
3171 | retval = u132_bus_resume(hcd); | |
3172 | } | |
3173 | return retval; | |
3174 | } | |
d774efea TO |
3175 | } |
3176 | ||
3177 | #else | |
3178 | #define u132_suspend NULL | |
3179 | #define u132_resume NULL | |
3180 | #endif | |
3181 | /* | |
0779bf2d | 3182 | * this driver is loaded explicitly by ftdi_u132 |
d774efea TO |
3183 | * |
3184 | * the platform_driver struct is static because it is per type of module | |
3185 | */ | |
3186 | static struct platform_driver u132_platform_driver = { | |
b40f8d39 | 3187 | .probe = u132_probe, |
7690417d | 3188 | .remove = u132_remove, |
b40f8d39 DW |
3189 | .suspend = u132_suspend, |
3190 | .resume = u132_resume, | |
3191 | .driver = { | |
a458677d | 3192 | .name = hcd_name, |
b40f8d39 | 3193 | }, |
d774efea TO |
3194 | }; |
3195 | static int __init u132_hcd_init(void) | |
3196 | { | |
b40f8d39 DW |
3197 | int retval; |
3198 | INIT_LIST_HEAD(&u132_static_list); | |
3199 | u132_instances = 0; | |
3200 | u132_exiting = 0; | |
3201 | mutex_init(&u132_module_lock); | |
3202 | if (usb_disabled()) | |
3203 | return -ENODEV; | |
654d121a | 3204 | printk(KERN_INFO "driver %s\n", hcd_name); |
b40f8d39 DW |
3205 | workqueue = create_singlethread_workqueue("u132"); |
3206 | retval = platform_driver_register(&u132_platform_driver); | |
41c1ad7a MO |
3207 | if (retval) |
3208 | destroy_workqueue(workqueue); | |
3209 | ||
b40f8d39 | 3210 | return retval; |
d774efea TO |
3211 | } |
3212 | ||
3213 | ||
3214 | module_init(u132_hcd_init); | |
3215 | static void __exit u132_hcd_exit(void) | |
3216 | { | |
b40f8d39 DW |
3217 | struct u132 *u132; |
3218 | struct u132 *temp; | |
3219 | mutex_lock(&u132_module_lock); | |
3220 | u132_exiting += 1; | |
3221 | mutex_unlock(&u132_module_lock); | |
3222 | list_for_each_entry_safe(u132, temp, &u132_static_list, u132_list) { | |
3223 | platform_device_unregister(u132->platform_dev); | |
3224 | } | |
3225 | platform_driver_unregister(&u132_platform_driver); | |
3226 | printk(KERN_INFO "u132-hcd driver deregistered\n"); | |
3227 | wait_event(u132_hcd_wait, u132_instances == 0); | |
3228 | flush_workqueue(workqueue); | |
3229 | destroy_workqueue(workqueue); | |
d774efea TO |
3230 | } |
3231 | ||
3232 | ||
3233 | module_exit(u132_hcd_exit); | |
3234 | MODULE_LICENSE("GPL"); | |
f4fce61d | 3235 | MODULE_ALIAS("platform:u132_hcd"); |