Commit | Line | Data |
---|---|---|
e0d3bafd | 1 | /* |
b9255176 SD |
2 | cx231xx-core.c - driver for Conexant Cx23100/101/102 |
3 | USB video capture devices | |
e0d3bafd SD |
4 | |
5 | Copyright (C) 2008 <srinivasa.deevi at conexant dot com> | |
b9255176 | 6 | Based on em28xx driver |
e0d3bafd SD |
7 | |
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
21 | */ | |
22 | ||
23 | #include <linux/init.h> | |
24 | #include <linux/list.h> | |
25 | #include <linux/module.h> | |
5a0e3ad6 | 26 | #include <linux/slab.h> |
e0d3bafd SD |
27 | #include <linux/usb.h> |
28 | #include <linux/vmalloc.h> | |
29 | #include <media/v4l2-common.h> | |
30 | ||
31 | #include "cx231xx.h" | |
32 | #include "cx231xx-reg.h" | |
33 | ||
34 | /* #define ENABLE_DEBUG_ISOC_FRAMES */ | |
35 | ||
36 | static unsigned int core_debug; | |
84b5dbf3 MCC |
37 | module_param(core_debug, int, 0644); |
38 | MODULE_PARM_DESC(core_debug, "enable debug messages [core]"); | |
e0d3bafd SD |
39 | |
40 | #define cx231xx_coredbg(fmt, arg...) do {\ | |
41 | if (core_debug) \ | |
42 | printk(KERN_INFO "%s %s :"fmt, \ | |
43 | dev->name, __func__ , ##arg); } while (0) | |
44 | ||
45 | static unsigned int reg_debug; | |
84b5dbf3 MCC |
46 | module_param(reg_debug, int, 0644); |
47 | MODULE_PARM_DESC(reg_debug, "enable debug messages [URB reg]"); | |
e0d3bafd SD |
48 | |
49 | #define cx231xx_regdbg(fmt, arg...) do {\ | |
50 | if (reg_debug) \ | |
51 | printk(KERN_INFO "%s %s :"fmt, \ | |
52 | dev->name, __func__ , ##arg); } while (0) | |
53 | ||
54 | static int alt = CX231XX_PINOUT; | |
55 | module_param(alt, int, 0644); | |
56 | MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint"); | |
57 | ||
e0d3bafd SD |
58 | #define cx231xx_isocdbg(fmt, arg...) do {\ |
59 | if (core_debug) \ | |
60 | printk(KERN_INFO "%s %s :"fmt, \ | |
61 | dev->name, __func__ , ##arg); } while (0) | |
62 | ||
b9255176 SD |
63 | /***************************************************************** |
64 | * Device control list functions * | |
65 | ******************************************************************/ | |
e0d3bafd SD |
66 | |
67 | static LIST_HEAD(cx231xx_devlist); | |
68 | static DEFINE_MUTEX(cx231xx_devlist_mutex); | |
69 | ||
e0d3bafd SD |
70 | /* |
71 | * cx231xx_realease_resources() | |
72 | * unregisters the v4l2,i2c and usb devices | |
73 | * called when the device gets disconected or at module unload | |
74 | */ | |
75 | void cx231xx_remove_from_devlist(struct cx231xx *dev) | |
76 | { | |
77 | mutex_lock(&cx231xx_devlist_mutex); | |
78 | list_del(&dev->devlist); | |
79 | mutex_unlock(&cx231xx_devlist_mutex); | |
80 | }; | |
81 | ||
82 | void cx231xx_add_into_devlist(struct cx231xx *dev) | |
83 | { | |
84 | mutex_lock(&cx231xx_devlist_mutex); | |
85 | list_add_tail(&dev->devlist, &cx231xx_devlist); | |
86 | mutex_unlock(&cx231xx_devlist_mutex); | |
87 | }; | |
88 | ||
e0d3bafd SD |
89 | static LIST_HEAD(cx231xx_extension_devlist); |
90 | static DEFINE_MUTEX(cx231xx_extension_devlist_lock); | |
91 | ||
92 | int cx231xx_register_extension(struct cx231xx_ops *ops) | |
93 | { | |
94 | struct cx231xx *dev = NULL; | |
95 | ||
96 | mutex_lock(&cx231xx_devlist_mutex); | |
97 | mutex_lock(&cx231xx_extension_devlist_lock); | |
98 | list_add_tail(&ops->next, &cx231xx_extension_devlist); | |
99 | list_for_each_entry(dev, &cx231xx_devlist, devlist) { | |
100 | if (dev) | |
101 | ops->init(dev); | |
102 | } | |
4be1ad36 | 103 | printk(KERN_INFO DRIVER_NAME ": %s initialized\n", ops->name); |
e0d3bafd SD |
104 | mutex_unlock(&cx231xx_extension_devlist_lock); |
105 | mutex_unlock(&cx231xx_devlist_mutex); | |
106 | return 0; | |
107 | } | |
108 | EXPORT_SYMBOL(cx231xx_register_extension); | |
109 | ||
110 | void cx231xx_unregister_extension(struct cx231xx_ops *ops) | |
111 | { | |
112 | struct cx231xx *dev = NULL; | |
113 | ||
114 | mutex_lock(&cx231xx_devlist_mutex); | |
115 | list_for_each_entry(dev, &cx231xx_devlist, devlist) { | |
116 | if (dev) | |
117 | ops->fini(dev); | |
118 | } | |
119 | ||
120 | mutex_lock(&cx231xx_extension_devlist_lock); | |
4be1ad36 | 121 | printk(KERN_INFO DRIVER_NAME ": %s removed\n", ops->name); |
e0d3bafd SD |
122 | list_del(&ops->next); |
123 | mutex_unlock(&cx231xx_extension_devlist_lock); | |
124 | mutex_unlock(&cx231xx_devlist_mutex); | |
125 | } | |
84b5dbf3 | 126 | EXPORT_SYMBOL(cx231xx_unregister_extension); |
e0d3bafd SD |
127 | |
128 | void cx231xx_init_extension(struct cx231xx *dev) | |
129 | { | |
130 | struct cx231xx_ops *ops = NULL; | |
131 | ||
132 | mutex_lock(&cx231xx_extension_devlist_lock); | |
133 | if (!list_empty(&cx231xx_extension_devlist)) { | |
134 | list_for_each_entry(ops, &cx231xx_extension_devlist, next) { | |
135 | if (ops->init) | |
136 | ops->init(dev); | |
137 | } | |
138 | } | |
139 | mutex_unlock(&cx231xx_extension_devlist_lock); | |
140 | } | |
141 | ||
142 | void cx231xx_close_extension(struct cx231xx *dev) | |
143 | { | |
144 | struct cx231xx_ops *ops = NULL; | |
145 | ||
146 | mutex_lock(&cx231xx_extension_devlist_lock); | |
147 | if (!list_empty(&cx231xx_extension_devlist)) { | |
148 | list_for_each_entry(ops, &cx231xx_extension_devlist, next) { | |
149 | if (ops->fini) | |
150 | ops->fini(dev); | |
151 | } | |
152 | } | |
153 | mutex_unlock(&cx231xx_extension_devlist_lock); | |
154 | } | |
155 | ||
b9255176 SD |
156 | /**************************************************************** |
157 | * U S B related functions * | |
158 | *****************************************************************/ | |
e0d3bafd | 159 | int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus, |
84b5dbf3 | 160 | struct cx231xx_i2c_xfer_data *req_data) |
e0d3bafd | 161 | { |
84b5dbf3 MCC |
162 | int status = 0; |
163 | struct cx231xx *dev = i2c_bus->dev; | |
b9255176 | 164 | struct VENDOR_REQUEST_IN ven_req; |
84b5dbf3 MCC |
165 | |
166 | u8 saddr_len = 0; | |
167 | u8 _i2c_period = 0; | |
168 | u8 _i2c_nostop = 0; | |
169 | u8 _i2c_reserve = 0; | |
170 | ||
171 | /* Get the I2C period, nostop and reserve parameters */ | |
172 | _i2c_period = i2c_bus->i2c_period; | |
173 | _i2c_nostop = i2c_bus->i2c_nostop; | |
174 | _i2c_reserve = i2c_bus->i2c_reserve; | |
175 | ||
176 | saddr_len = req_data->saddr_len; | |
177 | ||
178 | /* Set wValue */ | |
179 | if (saddr_len == 1) /* need check saddr_len == 0 */ | |
180 | ven_req.wValue = | |
181 | req_data-> | |
182 | dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 | | |
183 | _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6; | |
184 | else | |
185 | ven_req.wValue = | |
186 | req_data-> | |
187 | dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 | | |
188 | _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6; | |
189 | ||
190 | /* set channel number */ | |
b9255176 SD |
191 | if (req_data->direction & I2C_M_RD) { |
192 | /* channel number, for read,spec required channel_num +4 */ | |
193 | ven_req.bRequest = i2c_bus->nr + 4; | |
194 | } else | |
84b5dbf3 MCC |
195 | ven_req.bRequest = i2c_bus->nr; /* channel number, */ |
196 | ||
197 | /* set index value */ | |
198 | switch (saddr_len) { | |
199 | case 0: | |
200 | ven_req.wIndex = 0; /* need check */ | |
201 | break; | |
202 | case 1: | |
203 | ven_req.wIndex = (req_data->saddr_dat & 0xff); | |
204 | break; | |
205 | case 2: | |
206 | ven_req.wIndex = req_data->saddr_dat; | |
207 | break; | |
208 | } | |
209 | ||
210 | /* set wLength value */ | |
211 | ven_req.wLength = req_data->buf_size; | |
212 | ||
213 | /* set bData value */ | |
214 | ven_req.bData = 0; | |
215 | ||
216 | /* set the direction */ | |
217 | if (req_data->direction) { | |
218 | ven_req.direction = USB_DIR_IN; | |
219 | memset(req_data->p_buffer, 0x00, ven_req.wLength); | |
220 | } else | |
221 | ven_req.direction = USB_DIR_OUT; | |
222 | ||
223 | /* set the buffer for read / write */ | |
224 | ven_req.pBuff = req_data->p_buffer; | |
225 | ||
226 | ||
227 | /* call common vendor command request */ | |
228 | status = cx231xx_send_vendor_cmd(dev, &ven_req); | |
229 | if (status < 0) { | |
230 | cx231xx_info | |
b9255176 | 231 | ("UsbInterface::sendCommand, failed with status -%d\n", |
84b5dbf3 MCC |
232 | status); |
233 | } | |
234 | ||
235 | return status; | |
e0d3bafd | 236 | } |
e0d3bafd | 237 | EXPORT_SYMBOL_GPL(cx231xx_send_usb_command); |
b9255176 | 238 | |
e0d3bafd SD |
239 | /* |
240 | * cx231xx_read_ctrl_reg() | |
241 | * reads data from the usb device specifying bRequest and wValue | |
242 | */ | |
243 | int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, | |
84b5dbf3 | 244 | char *buf, int len) |
e0d3bafd | 245 | { |
84b5dbf3 | 246 | u8 val = 0; |
e0d3bafd SD |
247 | int ret; |
248 | int pipe = usb_rcvctrlpipe(dev->udev, 0); | |
249 | ||
250 | if (dev->state & DEV_DISCONNECTED) | |
251 | return -ENODEV; | |
252 | ||
253 | if (len > URB_MAX_CTRL_SIZE) | |
254 | return -EINVAL; | |
255 | ||
84b5dbf3 MCC |
256 | switch (len) { |
257 | case 1: | |
258 | val = ENABLE_ONE_BYTE; | |
259 | break; | |
260 | case 2: | |
261 | val = ENABLE_TWE_BYTE; | |
262 | break; | |
263 | case 3: | |
264 | val = ENABLE_THREE_BYTE; | |
265 | break; | |
266 | case 4: | |
267 | val = ENABLE_FOUR_BYTE; | |
268 | break; | |
269 | default: | |
270 | val = 0xFF; /* invalid option */ | |
271 | } | |
272 | ||
273 | if (val == 0xFF) | |
274 | return -EINVAL; | |
e0d3bafd SD |
275 | |
276 | if (reg_debug) { | |
277 | cx231xx_isocdbg("(pipe 0x%08x): " | |
84b5dbf3 MCC |
278 | "IN: %02x %02x %02x %02x %02x %02x %02x %02x ", |
279 | pipe, | |
280 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
281 | req, 0, val, | |
282 | reg & 0xff, reg >> 8, len & 0xff, len >> 8); | |
e0d3bafd SD |
283 | } |
284 | ||
6e4f574b | 285 | mutex_lock(&dev->ctrl_urb_lock); |
e0d3bafd SD |
286 | ret = usb_control_msg(dev->udev, pipe, req, |
287 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
288 | val, reg, dev->urb_buf, len, HZ); | |
289 | if (ret < 0) { | |
290 | cx231xx_isocdbg(" failed!\n"); | |
291 | /* mutex_unlock(&dev->ctrl_urb_lock); */ | |
292 | return ret; | |
293 | } | |
294 | ||
295 | if (len) | |
296 | memcpy(buf, dev->urb_buf, len); | |
297 | ||
6e4f574b | 298 | mutex_unlock(&dev->ctrl_urb_lock); |
e0d3bafd SD |
299 | |
300 | if (reg_debug) { | |
301 | int byte; | |
302 | ||
303 | cx231xx_isocdbg("<<<"); | |
304 | for (byte = 0; byte < len; byte++) | |
305 | cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]); | |
306 | cx231xx_isocdbg("\n"); | |
307 | } | |
308 | ||
309 | return ret; | |
310 | } | |
311 | ||
b9255176 SD |
312 | int cx231xx_send_vendor_cmd(struct cx231xx *dev, |
313 | struct VENDOR_REQUEST_IN *ven_req) | |
e0d3bafd | 314 | { |
84b5dbf3 | 315 | int ret; |
e0d3bafd SD |
316 | int pipe = 0; |
317 | ||
318 | if (dev->state & DEV_DISCONNECTED) | |
319 | return -ENODEV; | |
320 | ||
321 | if ((ven_req->wLength > URB_MAX_CTRL_SIZE)) | |
322 | return -EINVAL; | |
323 | ||
84b5dbf3 MCC |
324 | if (ven_req->direction) |
325 | pipe = usb_rcvctrlpipe(dev->udev, 0); | |
326 | else | |
327 | pipe = usb_sndctrlpipe(dev->udev, 0); | |
e0d3bafd SD |
328 | |
329 | if (reg_debug) { | |
330 | int byte; | |
331 | ||
332 | cx231xx_isocdbg("(pipe 0x%08x): " | |
84b5dbf3 MCC |
333 | "OUT: %02x %02x %02x %04x %04x %04x >>>", |
334 | pipe, | |
335 | ven_req-> | |
336 | direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
337 | ven_req->bRequest, 0, ven_req->wValue, | |
338 | ven_req->wIndex, ven_req->wLength); | |
e0d3bafd SD |
339 | |
340 | for (byte = 0; byte < ven_req->wLength; byte++) | |
84b5dbf3 MCC |
341 | cx231xx_isocdbg(" %02x", |
342 | (unsigned char)ven_req->pBuff[byte]); | |
e0d3bafd SD |
343 | cx231xx_isocdbg("\n"); |
344 | } | |
345 | ||
6e4f574b | 346 | mutex_lock(&dev->ctrl_urb_lock); |
e0d3bafd | 347 | ret = usb_control_msg(dev->udev, pipe, ven_req->bRequest, |
84b5dbf3 MCC |
348 | ven_req-> |
349 | direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
350 | ven_req->wValue, ven_req->wIndex, ven_req->pBuff, | |
351 | ven_req->wLength, HZ); | |
6e4f574b | 352 | mutex_unlock(&dev->ctrl_urb_lock); |
e0d3bafd SD |
353 | |
354 | return ret; | |
355 | } | |
356 | ||
357 | /* | |
358 | * cx231xx_write_ctrl_reg() | |
359 | * sends data to the usb device, specifying bRequest | |
360 | */ | |
361 | int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf, | |
84b5dbf3 | 362 | int len) |
e0d3bafd | 363 | { |
84b5dbf3 | 364 | u8 val = 0; |
e0d3bafd SD |
365 | int ret; |
366 | int pipe = usb_sndctrlpipe(dev->udev, 0); | |
367 | ||
368 | if (dev->state & DEV_DISCONNECTED) | |
369 | return -ENODEV; | |
370 | ||
371 | if ((len < 1) || (len > URB_MAX_CTRL_SIZE)) | |
372 | return -EINVAL; | |
373 | ||
84b5dbf3 MCC |
374 | switch (len) { |
375 | case 1: | |
376 | val = ENABLE_ONE_BYTE; | |
377 | break; | |
378 | case 2: | |
379 | val = ENABLE_TWE_BYTE; | |
380 | break; | |
381 | case 3: | |
382 | val = ENABLE_THREE_BYTE; | |
383 | break; | |
384 | case 4: | |
385 | val = ENABLE_FOUR_BYTE; | |
386 | break; | |
387 | default: | |
388 | val = 0xFF; /* invalid option */ | |
389 | } | |
390 | ||
391 | if (val == 0xFF) | |
392 | return -EINVAL; | |
e0d3bafd SD |
393 | |
394 | if (reg_debug) { | |
395 | int byte; | |
396 | ||
397 | cx231xx_isocdbg("(pipe 0x%08x): " | |
b9255176 SD |
398 | "OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>", |
399 | pipe, | |
400 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
401 | req, 0, val, reg & 0xff, | |
402 | reg >> 8, len & 0xff, len >> 8); | |
e0d3bafd SD |
403 | |
404 | for (byte = 0; byte < len; byte++) | |
405 | cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]); | |
406 | cx231xx_isocdbg("\n"); | |
407 | } | |
408 | ||
6e4f574b | 409 | mutex_lock(&dev->ctrl_urb_lock); |
e0d3bafd SD |
410 | memcpy(dev->urb_buf, buf, len); |
411 | ret = usb_control_msg(dev->udev, pipe, req, | |
412 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
413 | val, reg, dev->urb_buf, len, HZ); | |
6e4f574b | 414 | mutex_unlock(&dev->ctrl_urb_lock); |
e0d3bafd SD |
415 | |
416 | return ret; | |
417 | } | |
418 | ||
b9255176 SD |
419 | /**************************************************************** |
420 | * USB Alternate Setting functions * | |
421 | *****************************************************************/ | |
e0d3bafd SD |
422 | |
423 | int cx231xx_set_video_alternate(struct cx231xx *dev) | |
424 | { | |
425 | int errCode, prev_alt = dev->video_mode.alt; | |
426 | unsigned int min_pkt_size = dev->width * 2 + 4; | |
84b5dbf3 | 427 | u32 usb_interface_index = 0; |
e0d3bafd SD |
428 | |
429 | /* When image size is bigger than a certain value, | |
430 | the frame size should be increased, otherwise, only | |
431 | green screen will be received. | |
432 | */ | |
433 | if (dev->width * 2 * dev->height > 720 * 240 * 2) | |
434 | min_pkt_size *= 2; | |
435 | ||
84b5dbf3 MCC |
436 | if (dev->width > 360) { |
437 | /* resolutions: 720,704,640 */ | |
438 | dev->video_mode.alt = 3; | |
439 | } else if (dev->width > 180) { | |
440 | /* resolutions: 360,352,320,240 */ | |
441 | dev->video_mode.alt = 2; | |
442 | } else if (dev->width > 0) { | |
443 | /* resolutions: 180,176,160,128,88 */ | |
444 | dev->video_mode.alt = 1; | |
445 | } else { | |
446 | /* Change to alt0 BULK to release USB bandwidth */ | |
447 | dev->video_mode.alt = 0; | |
448 | } | |
449 | ||
450 | /* Get the correct video interface Index */ | |
451 | usb_interface_index = | |
452 | dev->current_pcb_config.hs_config_info[0].interface_info. | |
453 | video_index + 1; | |
e0d3bafd SD |
454 | |
455 | if (dev->video_mode.alt != prev_alt) { | |
456 | cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n", | |
457 | min_pkt_size, dev->video_mode.alt); | |
84b5dbf3 MCC |
458 | dev->video_mode.max_pkt_size = |
459 | dev->video_mode.alt_max_pkt_size[dev->video_mode.alt]; | |
e0d3bafd | 460 | cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n", |
84b5dbf3 MCC |
461 | dev->video_mode.alt, |
462 | dev->video_mode.max_pkt_size); | |
463 | cx231xx_info | |
b9255176 | 464 | (" setting alt %d with wMaxPktSize=%u , Interface = %d\n", |
84b5dbf3 MCC |
465 | dev->video_mode.alt, dev->video_mode.max_pkt_size, |
466 | usb_interface_index); | |
467 | errCode = | |
468 | usb_set_interface(dev->udev, usb_interface_index, | |
469 | dev->video_mode.alt); | |
e0d3bafd | 470 | if (errCode < 0) { |
84b5dbf3 | 471 | cx231xx_errdev |
b9255176 | 472 | ("cannot change alt number to %d (error=%i)\n", |
84b5dbf3 | 473 | dev->video_mode.alt, errCode); |
e0d3bafd SD |
474 | return errCode; |
475 | } | |
476 | } | |
477 | return 0; | |
478 | } | |
479 | ||
480 | int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt) | |
481 | { | |
84b5dbf3 MCC |
482 | int status = 0; |
483 | u32 usb_interface_index = 0; | |
484 | u32 max_pkt_size = 0; | |
485 | ||
486 | switch (index) { | |
487 | case INDEX_TS1: | |
488 | usb_interface_index = | |
489 | dev->current_pcb_config.hs_config_info[0].interface_info. | |
490 | ts1_index + 1; | |
491 | dev->video_mode.alt = alt; | |
492 | if (dev->ts1_mode.alt_max_pkt_size != NULL) | |
493 | max_pkt_size = dev->ts1_mode.max_pkt_size = | |
494 | dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt]; | |
495 | break; | |
496 | case INDEX_TS2: | |
497 | usb_interface_index = | |
498 | dev->current_pcb_config.hs_config_info[0].interface_info. | |
499 | ts2_index + 1; | |
500 | break; | |
501 | case INDEX_AUDIO: | |
502 | usb_interface_index = | |
503 | dev->current_pcb_config.hs_config_info[0].interface_info. | |
504 | audio_index + 1; | |
505 | dev->adev.alt = alt; | |
506 | if (dev->adev.alt_max_pkt_size != NULL) | |
507 | max_pkt_size = dev->adev.max_pkt_size = | |
508 | dev->adev.alt_max_pkt_size[dev->adev.alt]; | |
509 | break; | |
510 | case INDEX_VIDEO: | |
511 | usb_interface_index = | |
512 | dev->current_pcb_config.hs_config_info[0].interface_info. | |
513 | video_index + 1; | |
514 | dev->video_mode.alt = alt; | |
515 | if (dev->video_mode.alt_max_pkt_size != NULL) | |
516 | max_pkt_size = dev->video_mode.max_pkt_size = | |
517 | dev->video_mode.alt_max_pkt_size[dev->video_mode. | |
518 | alt]; | |
519 | break; | |
520 | case INDEX_VANC: | |
521 | usb_interface_index = | |
522 | dev->current_pcb_config.hs_config_info[0].interface_info. | |
523 | vanc_index + 1; | |
524 | dev->vbi_mode.alt = alt; | |
525 | if (dev->vbi_mode.alt_max_pkt_size != NULL) | |
526 | max_pkt_size = dev->vbi_mode.max_pkt_size = | |
527 | dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt]; | |
528 | break; | |
529 | case INDEX_HANC: | |
530 | usb_interface_index = | |
531 | dev->current_pcb_config.hs_config_info[0].interface_info. | |
532 | hanc_index + 1; | |
533 | dev->sliced_cc_mode.alt = alt; | |
534 | if (dev->sliced_cc_mode.alt_max_pkt_size != NULL) | |
535 | max_pkt_size = dev->sliced_cc_mode.max_pkt_size = | |
536 | dev->sliced_cc_mode.alt_max_pkt_size[dev-> | |
537 | sliced_cc_mode. | |
538 | alt]; | |
539 | break; | |
540 | default: | |
541 | break; | |
542 | } | |
543 | ||
544 | if (alt > 0 && max_pkt_size == 0) { | |
545 | cx231xx_errdev | |
b9255176 SD |
546 | ("can't change interface %d alt no. to %d: Max. Pkt size = 0\n", |
547 | usb_interface_index, alt); | |
84b5dbf3 MCC |
548 | return -1; |
549 | } | |
550 | ||
551 | cx231xx_info | |
552 | (" setting alternate %d with wMaxPacketSize=%u , Interface = %d\n", | |
553 | alt, max_pkt_size, usb_interface_index); | |
554 | ||
555 | if (usb_interface_index > 0) { | |
556 | status = usb_set_interface(dev->udev, usb_interface_index, alt); | |
e0d3bafd | 557 | if (status < 0) { |
84b5dbf3 | 558 | cx231xx_errdev |
b9255176 SD |
559 | ("can't change interface %d alt no. to %d (err=%i)\n", |
560 | usb_interface_index, alt, status); | |
e0d3bafd SD |
561 | return status; |
562 | } | |
84b5dbf3 | 563 | } |
e0d3bafd | 564 | |
84b5dbf3 | 565 | return status; |
e0d3bafd SD |
566 | } |
567 | EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting); | |
568 | ||
569 | int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio) | |
570 | { | |
571 | int rc = 0; | |
572 | ||
573 | if (!gpio) | |
574 | return rc; | |
575 | ||
576 | /* Send GPIO reset sequences specified at board entry */ | |
577 | while (gpio->sleep >= 0) { | |
84b5dbf3 MCC |
578 | rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val); |
579 | if (rc < 0) | |
580 | return rc; | |
e0d3bafd SD |
581 | |
582 | if (gpio->sleep > 0) | |
583 | msleep(gpio->sleep); | |
584 | ||
585 | gpio++; | |
586 | } | |
587 | return rc; | |
588 | } | |
589 | ||
590 | int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode) | |
591 | { | |
592 | if (dev->mode == set_mode) | |
593 | return 0; | |
594 | ||
595 | if (set_mode == CX231XX_SUSPEND) { | |
84b5dbf3 | 596 | /* Set the chip in power saving mode */ |
e0d3bafd SD |
597 | dev->mode = set_mode; |
598 | } | |
599 | ||
600 | /* Resource is locked */ | |
601 | if (dev->mode != CX231XX_SUSPEND) | |
602 | return -EINVAL; | |
603 | ||
604 | dev->mode = set_mode; | |
605 | ||
b9255176 SD |
606 | if (dev->mode == CX231XX_DIGITAL_MODE) |
607 | ;/* Set Digital power mode */ | |
608 | else | |
609 | ;/* Set Analog Power mode */ | |
610 | ||
84b5dbf3 | 611 | return 0; |
e0d3bafd SD |
612 | } |
613 | EXPORT_SYMBOL_GPL(cx231xx_set_mode); | |
614 | ||
b9255176 SD |
615 | /***************************************************************** |
616 | * URB Streaming functions * | |
617 | ******************************************************************/ | |
e0d3bafd SD |
618 | |
619 | /* | |
620 | * IRQ callback, called by URB callback | |
621 | */ | |
622 | static void cx231xx_irq_callback(struct urb *urb) | |
623 | { | |
84b5dbf3 MCC |
624 | struct cx231xx_dmaqueue *dma_q = urb->context; |
625 | struct cx231xx_video_mode *vmode = | |
626 | container_of(dma_q, struct cx231xx_video_mode, vidq); | |
627 | struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode); | |
e0d3bafd SD |
628 | int rc, i; |
629 | ||
84b5dbf3 MCC |
630 | switch (urb->status) { |
631 | case 0: /* success */ | |
632 | case -ETIMEDOUT: /* NAK */ | |
633 | break; | |
634 | case -ECONNRESET: /* kill */ | |
635 | case -ENOENT: | |
636 | case -ESHUTDOWN: | |
637 | return; | |
638 | default: /* error */ | |
639 | cx231xx_isocdbg("urb completition error %d.\n", urb->status); | |
640 | break; | |
e0d3bafd SD |
641 | } |
642 | ||
643 | /* Copy data from URB */ | |
644 | spin_lock(&dev->video_mode.slock); | |
645 | rc = dev->video_mode.isoc_ctl.isoc_copy(dev, urb); | |
646 | spin_unlock(&dev->video_mode.slock); | |
647 | ||
648 | /* Reset urb buffers */ | |
649 | for (i = 0; i < urb->number_of_packets; i++) { | |
650 | urb->iso_frame_desc[i].status = 0; | |
651 | urb->iso_frame_desc[i].actual_length = 0; | |
652 | } | |
653 | urb->status = 0; | |
654 | ||
655 | urb->status = usb_submit_urb(urb, GFP_ATOMIC); | |
656 | if (urb->status) { | |
657 | cx231xx_isocdbg("urb resubmit failed (error=%i)\n", | |
84b5dbf3 | 658 | urb->status); |
e0d3bafd SD |
659 | } |
660 | } | |
661 | ||
662 | /* | |
663 | * Stop and Deallocate URBs | |
664 | */ | |
665 | void cx231xx_uninit_isoc(struct cx231xx *dev) | |
666 | { | |
667 | struct urb *urb; | |
668 | int i; | |
669 | ||
670 | cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n"); | |
671 | ||
672 | dev->video_mode.isoc_ctl.nfields = -1; | |
673 | for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) { | |
674 | urb = dev->video_mode.isoc_ctl.urb[i]; | |
675 | if (urb) { | |
84b5dbf3 MCC |
676 | if (!irqs_disabled()) |
677 | usb_kill_urb(urb); | |
678 | else | |
679 | usb_unlink_urb(urb); | |
e0d3bafd SD |
680 | |
681 | if (dev->video_mode.isoc_ctl.transfer_buffer[i]) { | |
682 | usb_buffer_free(dev->udev, | |
84b5dbf3 MCC |
683 | urb->transfer_buffer_length, |
684 | dev->video_mode.isoc_ctl. | |
685 | transfer_buffer[i], | |
686 | urb->transfer_dma); | |
e0d3bafd SD |
687 | } |
688 | usb_free_urb(urb); | |
689 | dev->video_mode.isoc_ctl.urb[i] = NULL; | |
690 | } | |
691 | dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL; | |
692 | } | |
693 | ||
694 | kfree(dev->video_mode.isoc_ctl.urb); | |
695 | kfree(dev->video_mode.isoc_ctl.transfer_buffer); | |
696 | ||
697 | dev->video_mode.isoc_ctl.urb = NULL; | |
698 | dev->video_mode.isoc_ctl.transfer_buffer = NULL; | |
699 | dev->video_mode.isoc_ctl.num_bufs = 0; | |
700 | ||
701 | cx231xx_capture_start(dev, 0, Raw_Video); | |
702 | } | |
703 | EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc); | |
704 | ||
705 | /* | |
706 | * Allocate URBs and start IRQ | |
707 | */ | |
708 | int cx231xx_init_isoc(struct cx231xx *dev, int max_packets, | |
84b5dbf3 | 709 | int num_bufs, int max_pkt_size, |
b9255176 | 710 | int (*isoc_copy) (struct cx231xx *dev, struct urb *urb)) |
e0d3bafd SD |
711 | { |
712 | struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq; | |
713 | int i; | |
714 | int sb_size, pipe; | |
715 | struct urb *urb; | |
716 | int j, k; | |
717 | int rc; | |
718 | ||
719 | cx231xx_isocdbg("cx231xx: called cx231xx_prepare_isoc\n"); | |
720 | ||
84b5dbf3 | 721 | dev->video_input = dev->video_input > 2 ? 2 : dev->video_input; |
e0d3bafd | 722 | |
84b5dbf3 MCC |
723 | cx231xx_info("Setting Video mux to %d\n", dev->video_input); |
724 | video_mux(dev, dev->video_input); | |
e0d3bafd SD |
725 | |
726 | /* De-allocates all pending stuff */ | |
727 | cx231xx_uninit_isoc(dev); | |
728 | ||
729 | dev->video_mode.isoc_ctl.isoc_copy = isoc_copy; | |
730 | dev->video_mode.isoc_ctl.num_bufs = num_bufs; | |
84b5dbf3 MCC |
731 | dma_q->pos = 0; |
732 | dma_q->is_partial_line = 0; | |
733 | dma_q->last_sav = 0; | |
734 | dma_q->current_field = -1; | |
735 | dma_q->field1_done = 0; | |
736 | dma_q->lines_per_field = dev->height / 2; | |
737 | dma_q->bytes_left_in_line = dev->width << 1; | |
738 | dma_q->lines_completed = 0; | |
739 | for (i = 0; i < 8; i++) | |
740 | dma_q->partial_buf[i] = 0; | |
741 | ||
742 | dev->video_mode.isoc_ctl.urb = | |
743 | kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL); | |
e0d3bafd SD |
744 | if (!dev->video_mode.isoc_ctl.urb) { |
745 | cx231xx_errdev("cannot alloc memory for usb buffers\n"); | |
746 | return -ENOMEM; | |
747 | } | |
748 | ||
84b5dbf3 MCC |
749 | dev->video_mode.isoc_ctl.transfer_buffer = |
750 | kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL); | |
e0d3bafd SD |
751 | if (!dev->video_mode.isoc_ctl.transfer_buffer) { |
752 | cx231xx_errdev("cannot allocate memory for usbtransfer\n"); | |
753 | kfree(dev->video_mode.isoc_ctl.urb); | |
754 | return -ENOMEM; | |
755 | } | |
756 | ||
757 | dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size; | |
758 | dev->video_mode.isoc_ctl.buf = NULL; | |
759 | ||
760 | sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size; | |
761 | ||
762 | /* allocate urbs and transfer buffers */ | |
763 | for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) { | |
764 | urb = usb_alloc_urb(max_packets, GFP_KERNEL); | |
765 | if (!urb) { | |
766 | cx231xx_err("cannot alloc isoc_ctl.urb %i\n", i); | |
767 | cx231xx_uninit_isoc(dev); | |
768 | return -ENOMEM; | |
769 | } | |
770 | dev->video_mode.isoc_ctl.urb[i] = urb; | |
771 | ||
84b5dbf3 MCC |
772 | dev->video_mode.isoc_ctl.transfer_buffer[i] = |
773 | usb_buffer_alloc(dev->udev, sb_size, GFP_KERNEL, | |
774 | &urb->transfer_dma); | |
e0d3bafd SD |
775 | if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) { |
776 | cx231xx_err("unable to allocate %i bytes for transfer" | |
84b5dbf3 MCC |
777 | " buffer %i%s\n", |
778 | sb_size, i, | |
b9255176 | 779 | in_interrupt() ? " while in int" : ""); |
e0d3bafd SD |
780 | cx231xx_uninit_isoc(dev); |
781 | return -ENOMEM; | |
782 | } | |
783 | memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size); | |
784 | ||
84b5dbf3 MCC |
785 | pipe = |
786 | usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr); | |
e0d3bafd SD |
787 | |
788 | usb_fill_int_urb(urb, dev->udev, pipe, | |
84b5dbf3 MCC |
789 | dev->video_mode.isoc_ctl.transfer_buffer[i], |
790 | sb_size, cx231xx_irq_callback, dma_q, 1); | |
e0d3bafd SD |
791 | |
792 | urb->number_of_packets = max_packets; | |
793 | urb->transfer_flags = URB_ISO_ASAP; | |
794 | ||
795 | k = 0; | |
796 | for (j = 0; j < max_packets; j++) { | |
797 | urb->iso_frame_desc[j].offset = k; | |
798 | urb->iso_frame_desc[j].length = | |
84b5dbf3 | 799 | dev->video_mode.isoc_ctl.max_pkt_size; |
e0d3bafd SD |
800 | k += dev->video_mode.isoc_ctl.max_pkt_size; |
801 | } | |
802 | } | |
803 | ||
804 | init_waitqueue_head(&dma_q->wq); | |
805 | ||
e0d3bafd SD |
806 | /* submit urbs and enables IRQ */ |
807 | for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) { | |
84b5dbf3 MCC |
808 | rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i], |
809 | GFP_ATOMIC); | |
e0d3bafd SD |
810 | if (rc) { |
811 | cx231xx_err("submit of urb %i failed (error=%i)\n", i, | |
84b5dbf3 | 812 | rc); |
e0d3bafd SD |
813 | cx231xx_uninit_isoc(dev); |
814 | return rc; | |
815 | } | |
816 | } | |
817 | ||
84b5dbf3 | 818 | cx231xx_capture_start(dev, 1, Raw_Video); |
e0d3bafd SD |
819 | |
820 | return 0; | |
821 | } | |
822 | EXPORT_SYMBOL_GPL(cx231xx_init_isoc); | |
823 | ||
b9255176 SD |
824 | /***************************************************************** |
825 | * Device Init/UnInit functions * | |
826 | ******************************************************************/ | |
e0d3bafd SD |
827 | int cx231xx_dev_init(struct cx231xx *dev) |
828 | { | |
84b5dbf3 | 829 | int errCode = 0; |
e0d3bafd | 830 | |
84b5dbf3 | 831 | /* Initialize I2C bus */ |
e0d3bafd SD |
832 | |
833 | /* External Master 1 Bus */ | |
834 | dev->i2c_bus[0].nr = 0; | |
835 | dev->i2c_bus[0].dev = dev; | |
84b5dbf3 MCC |
836 | dev->i2c_bus[0].i2c_period = I2C_SPEED_1M; /* 1MHz */ |
837 | dev->i2c_bus[0].i2c_nostop = 0; | |
838 | dev->i2c_bus[0].i2c_reserve = 0; | |
e0d3bafd SD |
839 | |
840 | /* External Master 2 Bus */ | |
841 | dev->i2c_bus[1].nr = 1; | |
842 | dev->i2c_bus[1].dev = dev; | |
84b5dbf3 MCC |
843 | dev->i2c_bus[1].i2c_period = I2C_SPEED_1M; /* 1MHz */ |
844 | dev->i2c_bus[1].i2c_nostop = 0; | |
845 | dev->i2c_bus[1].i2c_reserve = 0; | |
e0d3bafd SD |
846 | |
847 | /* Internal Master 3 Bus */ | |
848 | dev->i2c_bus[2].nr = 2; | |
849 | dev->i2c_bus[2].dev = dev; | |
84b5dbf3 MCC |
850 | dev->i2c_bus[2].i2c_period = I2C_SPEED_400K; /* 400kHz */ |
851 | dev->i2c_bus[2].i2c_nostop = 0; | |
852 | dev->i2c_bus[2].i2c_reserve = 0; | |
e0d3bafd | 853 | |
84b5dbf3 | 854 | /* register I2C buses */ |
e0d3bafd SD |
855 | cx231xx_i2c_register(&dev->i2c_bus[0]); |
856 | cx231xx_i2c_register(&dev->i2c_bus[1]); | |
857 | cx231xx_i2c_register(&dev->i2c_bus[2]); | |
858 | ||
84b5dbf3 | 859 | /* init hardware */ |
b9255176 | 860 | /* Note : with out calling set power mode function, |
ecc67d10 | 861 | afe can not be set up correctly */ |
84b5dbf3 MCC |
862 | errCode = cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV); |
863 | if (errCode < 0) { | |
864 | cx231xx_errdev | |
b9255176 | 865 | ("%s: Failed to set Power - errCode [%d]!\n", |
84b5dbf3 | 866 | __func__, errCode); |
e0d3bafd SD |
867 | return errCode; |
868 | } | |
869 | ||
84b5dbf3 | 870 | /* initialize Colibri block */ |
ecc67d10 | 871 | errCode = cx231xx_afe_init_super_block(dev, 0x23c); |
e0d3bafd | 872 | if (errCode < 0) { |
84b5dbf3 | 873 | cx231xx_errdev |
ecc67d10 | 874 | ("%s: cx231xx_afe init super block - errCode [%d]!\n", |
84b5dbf3 | 875 | __func__, errCode); |
e0d3bafd SD |
876 | return errCode; |
877 | } | |
ecc67d10 | 878 | errCode = cx231xx_afe_init_channels(dev); |
84b5dbf3 MCC |
879 | if (errCode < 0) { |
880 | cx231xx_errdev | |
ecc67d10 | 881 | ("%s: cx231xx_afe init channels - errCode [%d]!\n", |
84b5dbf3 | 882 | __func__, errCode); |
e0d3bafd SD |
883 | return errCode; |
884 | } | |
885 | ||
84b5dbf3 MCC |
886 | /* Set DIF in By pass mode */ |
887 | errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND); | |
888 | if (errCode < 0) { | |
889 | cx231xx_errdev | |
890 | ("%s: cx231xx_dif set to By pass mode - errCode [%d]!\n", | |
891 | __func__, errCode); | |
e0d3bafd SD |
892 | return errCode; |
893 | } | |
894 | ||
ecc67d10 SD |
895 | /* I2S block related functions */ |
896 | errCode = cx231xx_i2s_blk_initialize(dev); | |
84b5dbf3 MCC |
897 | if (errCode < 0) { |
898 | cx231xx_errdev | |
ecc67d10 | 899 | ("%s: cx231xx_i2s block initialize - errCode [%d]!\n", |
84b5dbf3 | 900 | __func__, errCode); |
e0d3bafd SD |
901 | return errCode; |
902 | } | |
903 | ||
84b5dbf3 MCC |
904 | /* init control pins */ |
905 | errCode = cx231xx_init_ctrl_pin_status(dev); | |
906 | if (errCode < 0) { | |
e0d3bafd | 907 | cx231xx_errdev("%s: cx231xx_init ctrl pins - errCode [%d]!\n", |
84b5dbf3 | 908 | __func__, errCode); |
e0d3bafd SD |
909 | return errCode; |
910 | } | |
911 | ||
84b5dbf3 MCC |
912 | /* set AGC mode to Analog */ |
913 | errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1); | |
914 | if (errCode < 0) { | |
915 | cx231xx_errdev | |
916 | ("%s: cx231xx_AGC mode to Analog - errCode [%d]!\n", | |
917 | __func__, errCode); | |
e0d3bafd SD |
918 | return errCode; |
919 | } | |
920 | ||
84b5dbf3 MCC |
921 | /* set all alternate settings to zero initially */ |
922 | cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0); | |
923 | cx231xx_set_alt_setting(dev, INDEX_VANC, 0); | |
924 | cx231xx_set_alt_setting(dev, INDEX_HANC, 0); | |
925 | if (dev->board.has_dvb) | |
926 | cx231xx_set_alt_setting(dev, INDEX_TS1, 0); | |
e0d3bafd | 927 | |
84b5dbf3 MCC |
928 | /* set the I2C master port to 3 on channel 1 */ |
929 | errCode = cx231xx_enable_i2c_for_tuner(dev, I2C_3); | |
e0d3bafd SD |
930 | |
931 | return errCode; | |
932 | } | |
933 | EXPORT_SYMBOL_GPL(cx231xx_dev_init); | |
934 | ||
935 | void cx231xx_dev_uninit(struct cx231xx *dev) | |
936 | { | |
84b5dbf3 | 937 | /* Un Initialize I2C bus */ |
e0d3bafd SD |
938 | cx231xx_i2c_unregister(&dev->i2c_bus[2]); |
939 | cx231xx_i2c_unregister(&dev->i2c_bus[1]); | |
940 | cx231xx_i2c_unregister(&dev->i2c_bus[0]); | |
941 | } | |
84b5dbf3 | 942 | EXPORT_SYMBOL_GPL(cx231xx_dev_uninit); |
e0d3bafd | 943 | |
b9255176 SD |
944 | /***************************************************************** |
945 | * G P I O related functions * | |
946 | ******************************************************************/ | |
84b5dbf3 MCC |
947 | int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 * gpio_val, |
948 | u8 len, u8 request, u8 direction) | |
e0d3bafd | 949 | { |
84b5dbf3 | 950 | int status = 0; |
b9255176 | 951 | struct VENDOR_REQUEST_IN ven_req; |
84b5dbf3 MCC |
952 | |
953 | /* Set wValue */ | |
954 | ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff); | |
955 | ||
956 | /* set request */ | |
957 | if (!request) { | |
958 | if (direction) | |
959 | ven_req.bRequest = VRT_GET_GPIO; /* 0x8 gpio */ | |
960 | else | |
961 | ven_req.bRequest = VRT_SET_GPIO; /* 0x9 gpio */ | |
962 | } else { | |
963 | if (direction) | |
964 | ven_req.bRequest = VRT_GET_GPIE; /* 0xa gpie */ | |
965 | else | |
966 | ven_req.bRequest = VRT_SET_GPIE; /* 0xb gpie */ | |
967 | } | |
e0d3bafd | 968 | |
84b5dbf3 MCC |
969 | /* set index value */ |
970 | ven_req.wIndex = (u16) (gpio_bit & 0xffff); | |
e0d3bafd | 971 | |
84b5dbf3 MCC |
972 | /* set wLength value */ |
973 | ven_req.wLength = len; | |
e0d3bafd | 974 | |
84b5dbf3 MCC |
975 | /* set bData value */ |
976 | ven_req.bData = 0; | |
e0d3bafd | 977 | |
84b5dbf3 MCC |
978 | /* set the buffer for read / write */ |
979 | ven_req.pBuff = gpio_val; | |
980 | ||
981 | /* set the direction */ | |
982 | if (direction) { | |
983 | ven_req.direction = USB_DIR_IN; | |
984 | memset(ven_req.pBuff, 0x00, ven_req.wLength); | |
985 | } else | |
986 | ven_req.direction = USB_DIR_OUT; | |
987 | ||
988 | ||
989 | /* call common vendor command request */ | |
990 | status = cx231xx_send_vendor_cmd(dev, &ven_req); | |
991 | if (status < 0) { | |
992 | cx231xx_info | |
b9255176 | 993 | ("UsbInterface::sendCommand, failed with status -%d\n", |
84b5dbf3 MCC |
994 | status); |
995 | } | |
e0d3bafd | 996 | |
84b5dbf3 | 997 | return status; |
e0d3bafd | 998 | } |
e0d3bafd SD |
999 | EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd); |
1000 | ||
b9255176 SD |
1001 | /***************************************************************** |
1002 | * C O N T R O L - Register R E A D / W R I T E functions * | |
1003 | *****************************************************************/ | |
e0d3bafd SD |
1004 | int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode) |
1005 | { | |
84b5dbf3 MCC |
1006 | u8 value[4] = { 0x0, 0x0, 0x0, 0x0 }; |
1007 | u32 tmp = 0; | |
1008 | int status = 0; | |
e0d3bafd | 1009 | |
84b5dbf3 MCC |
1010 | status = |
1011 | cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4); | |
1012 | if (status < 0) | |
1013 | return status; | |
e0d3bafd | 1014 | |
84b5dbf3 MCC |
1015 | tmp = *((u32 *) value); |
1016 | tmp |= mode; | |
e0d3bafd | 1017 | |
84b5dbf3 MCC |
1018 | value[0] = (u8) tmp; |
1019 | value[1] = (u8) (tmp >> 8); | |
1020 | value[2] = (u8) (tmp >> 16); | |
1021 | value[3] = (u8) (tmp >> 24); | |
e0d3bafd | 1022 | |
84b5dbf3 MCC |
1023 | status = |
1024 | cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4); | |
e0d3bafd | 1025 | |
84b5dbf3 | 1026 | return status; |
e0d3bafd SD |
1027 | } |
1028 | ||
b9255176 SD |
1029 | /***************************************************************** |
1030 | * I 2 C Internal C O N T R O L functions * | |
1031 | *****************************************************************/ | |
e0d3bafd | 1032 | int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr, |
b9255176 | 1033 | u8 saddr_len, u32 *data, u8 data_len) |
e0d3bafd | 1034 | { |
84b5dbf3 MCC |
1035 | int status = 0; |
1036 | struct cx231xx_i2c_xfer_data req_data; | |
1037 | u8 value[4] = { 0, 0, 0, 0 }; | |
1038 | ||
1039 | if (saddr_len == 0) | |
1040 | saddr = 0; | |
1041 | else if (saddr_len == 0) | |
1042 | saddr &= 0xff; | |
1043 | ||
1044 | /* prepare xfer_data struct */ | |
1045 | req_data.dev_addr = dev_addr >> 1; | |
1046 | req_data.direction = I2C_M_RD; | |
1047 | req_data.saddr_len = saddr_len; | |
1048 | req_data.saddr_dat = saddr; | |
1049 | req_data.buf_size = data_len; | |
1050 | req_data.p_buffer = (u8 *) value; | |
1051 | ||
1052 | /* usb send command */ | |
1053 | status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data); | |
1054 | ||
1055 | if (status >= 0) { | |
1056 | /* Copy the data read back to main buffer */ | |
1057 | if (data_len == 1) | |
1058 | *data = value[0]; | |
1059 | else | |
1060 | *data = | |
1061 | value[0] | value[1] << 8 | value[2] << 16 | value[3] | |
1062 | << 24; | |
1063 | } | |
1064 | ||
1065 | return status; | |
e0d3bafd SD |
1066 | } |
1067 | ||
1068 | int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr, | |
84b5dbf3 | 1069 | u8 saddr_len, u32 data, u8 data_len) |
e0d3bafd | 1070 | { |
84b5dbf3 MCC |
1071 | int status = 0; |
1072 | u8 value[4] = { 0, 0, 0, 0 }; | |
1073 | struct cx231xx_i2c_xfer_data req_data; | |
1074 | ||
1075 | value[0] = (u8) data; | |
1076 | value[1] = (u8) (data >> 8); | |
1077 | value[2] = (u8) (data >> 16); | |
1078 | value[3] = (u8) (data >> 24); | |
1079 | ||
1080 | if (saddr_len == 0) | |
1081 | saddr = 0; | |
1082 | else if (saddr_len == 0) | |
1083 | saddr &= 0xff; | |
1084 | ||
1085 | /* prepare xfer_data struct */ | |
1086 | req_data.dev_addr = dev_addr >> 1; | |
1087 | req_data.direction = 0; | |
1088 | req_data.saddr_len = saddr_len; | |
1089 | req_data.saddr_dat = saddr; | |
1090 | req_data.buf_size = data_len; | |
1091 | req_data.p_buffer = value; | |
1092 | ||
1093 | /* usb send command */ | |
1094 | status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data); | |
1095 | ||
1096 | return status; | |
e0d3bafd SD |
1097 | } |
1098 | ||
84b5dbf3 MCC |
1099 | int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size, |
1100 | u16 register_address, u8 bit_start, u8 bit_end, | |
1101 | u32 value) | |
e0d3bafd | 1102 | { |
84b5dbf3 MCC |
1103 | int status = 0; |
1104 | u32 tmp; | |
1105 | u32 mask = 0; | |
1106 | int i; | |
1107 | ||
b9255176 | 1108 | if (bit_start > (size - 1) || bit_end > (size - 1)) |
84b5dbf3 | 1109 | return -1; |
e0d3bafd | 1110 | |
84b5dbf3 MCC |
1111 | if (size == 8) { |
1112 | status = | |
1113 | cx231xx_read_i2c_data(dev, dev_addr, register_address, 2, | |
1114 | &tmp, 1); | |
1115 | } else { | |
1116 | status = | |
1117 | cx231xx_read_i2c_data(dev, dev_addr, register_address, 2, | |
1118 | &tmp, 4); | |
1119 | } | |
e0d3bafd | 1120 | |
b9255176 | 1121 | if (status < 0) |
84b5dbf3 | 1122 | return status; |
84b5dbf3 MCC |
1123 | |
1124 | mask = 1 << bit_end; | |
b9255176 | 1125 | for (i = bit_end; i > bit_start && i > 0; i--) |
84b5dbf3 | 1126 | mask = mask + (1 << (i - 1)); |
84b5dbf3 MCC |
1127 | |
1128 | value <<= bit_start; | |
1129 | ||
1130 | if (size == 8) { | |
1131 | tmp &= ~mask; | |
1132 | tmp |= value; | |
1133 | tmp &= 0xff; | |
1134 | status = | |
1135 | cx231xx_write_i2c_data(dev, dev_addr, register_address, 2, | |
1136 | tmp, 1); | |
1137 | } else { | |
1138 | tmp &= ~mask; | |
1139 | tmp |= value; | |
1140 | status = | |
1141 | cx231xx_write_i2c_data(dev, dev_addr, register_address, 2, | |
1142 | tmp, 4); | |
1143 | } | |
1144 | ||
1145 | return status; | |
1146 | } | |
e0d3bafd SD |
1147 | |
1148 | int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr, | |
84b5dbf3 | 1149 | u16 saddr, u32 mask, u32 value) |
e0d3bafd | 1150 | { |
84b5dbf3 MCC |
1151 | u32 temp; |
1152 | int status = 0; | |
e0d3bafd | 1153 | |
84b5dbf3 | 1154 | status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4); |
e0d3bafd | 1155 | |
84b5dbf3 MCC |
1156 | if (status < 0) |
1157 | return status; | |
e0d3bafd | 1158 | |
84b5dbf3 MCC |
1159 | temp &= ~mask; |
1160 | temp |= value; | |
e0d3bafd | 1161 | |
84b5dbf3 | 1162 | status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4); |
e0d3bafd | 1163 | |
84b5dbf3 | 1164 | return status; |
e0d3bafd SD |
1165 | } |
1166 | ||
1167 | u32 cx231xx_set_field(u32 field_mask, u32 data) | |
1168 | { | |
84b5dbf3 | 1169 | u32 temp; |
e0d3bafd | 1170 | |
b9255176 | 1171 | for (temp = field_mask; (temp & 1) == 0; temp >>= 1) |
84b5dbf3 | 1172 | data <<= 1; |
e0d3bafd | 1173 | |
84b5dbf3 | 1174 | return data; |
e0d3bafd | 1175 | } |