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Commit | Line | Data |
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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> | |
26 | #include <linux/usb.h> | |
27 | #include <linux/vmalloc.h> | |
28 | #include <media/v4l2-common.h> | |
29 | ||
30 | #include "cx231xx.h" | |
31 | #include "cx231xx-reg.h" | |
32 | ||
33 | /* #define ENABLE_DEBUG_ISOC_FRAMES */ | |
34 | ||
35 | static unsigned int core_debug; | |
84b5dbf3 MCC |
36 | module_param(core_debug, int, 0644); |
37 | MODULE_PARM_DESC(core_debug, "enable debug messages [core]"); | |
e0d3bafd SD |
38 | |
39 | #define cx231xx_coredbg(fmt, arg...) do {\ | |
40 | if (core_debug) \ | |
41 | printk(KERN_INFO "%s %s :"fmt, \ | |
42 | dev->name, __func__ , ##arg); } while (0) | |
43 | ||
44 | static unsigned int reg_debug; | |
84b5dbf3 MCC |
45 | module_param(reg_debug, int, 0644); |
46 | MODULE_PARM_DESC(reg_debug, "enable debug messages [URB reg]"); | |
e0d3bafd SD |
47 | |
48 | #define cx231xx_regdbg(fmt, arg...) do {\ | |
49 | if (reg_debug) \ | |
50 | printk(KERN_INFO "%s %s :"fmt, \ | |
51 | dev->name, __func__ , ##arg); } while (0) | |
52 | ||
53 | static int alt = CX231XX_PINOUT; | |
54 | module_param(alt, int, 0644); | |
55 | MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint"); | |
56 | ||
e0d3bafd SD |
57 | #define cx231xx_isocdbg(fmt, arg...) do {\ |
58 | if (core_debug) \ | |
59 | printk(KERN_INFO "%s %s :"fmt, \ | |
60 | dev->name, __func__ , ##arg); } while (0) | |
61 | ||
b9255176 SD |
62 | /***************************************************************** |
63 | * Device control list functions * | |
64 | ******************************************************************/ | |
e0d3bafd SD |
65 | |
66 | static LIST_HEAD(cx231xx_devlist); | |
67 | static DEFINE_MUTEX(cx231xx_devlist_mutex); | |
68 | ||
69 | struct cx231xx *cx231xx_get_device(int minor, | |
84b5dbf3 | 70 | enum v4l2_buf_type *fh_type, int *has_radio) |
e0d3bafd SD |
71 | { |
72 | struct cx231xx *h, *dev = NULL; | |
73 | ||
74 | *fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
75 | *has_radio = 0; | |
76 | ||
77 | mutex_lock(&cx231xx_devlist_mutex); | |
78 | list_for_each_entry(h, &cx231xx_devlist, devlist) { | |
79 | if (h->vdev->minor == minor) | |
80 | dev = h; | |
81 | if (h->vbi_dev->minor == minor) { | |
82 | dev = h; | |
83 | *fh_type = V4L2_BUF_TYPE_VBI_CAPTURE; | |
84 | } | |
84b5dbf3 | 85 | if (h->radio_dev && h->radio_dev->minor == minor) { |
e0d3bafd SD |
86 | dev = h; |
87 | *has_radio = 1; | |
88 | } | |
89 | } | |
90 | mutex_unlock(&cx231xx_devlist_mutex); | |
91 | ||
92 | return dev; | |
93 | } | |
94 | ||
95 | /* | |
96 | * cx231xx_realease_resources() | |
97 | * unregisters the v4l2,i2c and usb devices | |
98 | * called when the device gets disconected or at module unload | |
99 | */ | |
100 | void cx231xx_remove_from_devlist(struct cx231xx *dev) | |
101 | { | |
102 | mutex_lock(&cx231xx_devlist_mutex); | |
103 | list_del(&dev->devlist); | |
104 | mutex_unlock(&cx231xx_devlist_mutex); | |
105 | }; | |
106 | ||
107 | void cx231xx_add_into_devlist(struct cx231xx *dev) | |
108 | { | |
109 | mutex_lock(&cx231xx_devlist_mutex); | |
110 | list_add_tail(&dev->devlist, &cx231xx_devlist); | |
111 | mutex_unlock(&cx231xx_devlist_mutex); | |
112 | }; | |
113 | ||
e0d3bafd SD |
114 | static LIST_HEAD(cx231xx_extension_devlist); |
115 | static DEFINE_MUTEX(cx231xx_extension_devlist_lock); | |
116 | ||
117 | int cx231xx_register_extension(struct cx231xx_ops *ops) | |
118 | { | |
119 | struct cx231xx *dev = NULL; | |
120 | ||
121 | mutex_lock(&cx231xx_devlist_mutex); | |
122 | mutex_lock(&cx231xx_extension_devlist_lock); | |
123 | list_add_tail(&ops->next, &cx231xx_extension_devlist); | |
124 | list_for_each_entry(dev, &cx231xx_devlist, devlist) { | |
125 | if (dev) | |
126 | ops->init(dev); | |
127 | } | |
128 | cx231xx_info("Cx231xx: Initialized (%s) extension\n", ops->name); | |
129 | mutex_unlock(&cx231xx_extension_devlist_lock); | |
130 | mutex_unlock(&cx231xx_devlist_mutex); | |
131 | return 0; | |
132 | } | |
133 | EXPORT_SYMBOL(cx231xx_register_extension); | |
134 | ||
135 | void cx231xx_unregister_extension(struct cx231xx_ops *ops) | |
136 | { | |
137 | struct cx231xx *dev = NULL; | |
138 | ||
139 | mutex_lock(&cx231xx_devlist_mutex); | |
140 | list_for_each_entry(dev, &cx231xx_devlist, devlist) { | |
141 | if (dev) | |
142 | ops->fini(dev); | |
143 | } | |
144 | ||
145 | mutex_lock(&cx231xx_extension_devlist_lock); | |
146 | cx231xx_info("Cx231xx: Removed (%s) extension\n", ops->name); | |
147 | list_del(&ops->next); | |
148 | mutex_unlock(&cx231xx_extension_devlist_lock); | |
149 | mutex_unlock(&cx231xx_devlist_mutex); | |
150 | } | |
84b5dbf3 | 151 | EXPORT_SYMBOL(cx231xx_unregister_extension); |
e0d3bafd SD |
152 | |
153 | void cx231xx_init_extension(struct cx231xx *dev) | |
154 | { | |
155 | struct cx231xx_ops *ops = NULL; | |
156 | ||
157 | mutex_lock(&cx231xx_extension_devlist_lock); | |
158 | if (!list_empty(&cx231xx_extension_devlist)) { | |
159 | list_for_each_entry(ops, &cx231xx_extension_devlist, next) { | |
160 | if (ops->init) | |
161 | ops->init(dev); | |
162 | } | |
163 | } | |
164 | mutex_unlock(&cx231xx_extension_devlist_lock); | |
165 | } | |
166 | ||
167 | void cx231xx_close_extension(struct cx231xx *dev) | |
168 | { | |
169 | struct cx231xx_ops *ops = NULL; | |
170 | ||
171 | mutex_lock(&cx231xx_extension_devlist_lock); | |
172 | if (!list_empty(&cx231xx_extension_devlist)) { | |
173 | list_for_each_entry(ops, &cx231xx_extension_devlist, next) { | |
174 | if (ops->fini) | |
175 | ops->fini(dev); | |
176 | } | |
177 | } | |
178 | mutex_unlock(&cx231xx_extension_devlist_lock); | |
179 | } | |
180 | ||
b9255176 SD |
181 | /**************************************************************** |
182 | * U S B related functions * | |
183 | *****************************************************************/ | |
e0d3bafd | 184 | int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus, |
84b5dbf3 | 185 | struct cx231xx_i2c_xfer_data *req_data) |
e0d3bafd | 186 | { |
84b5dbf3 MCC |
187 | int status = 0; |
188 | struct cx231xx *dev = i2c_bus->dev; | |
b9255176 | 189 | struct VENDOR_REQUEST_IN ven_req; |
84b5dbf3 MCC |
190 | |
191 | u8 saddr_len = 0; | |
192 | u8 _i2c_period = 0; | |
193 | u8 _i2c_nostop = 0; | |
194 | u8 _i2c_reserve = 0; | |
195 | ||
196 | /* Get the I2C period, nostop and reserve parameters */ | |
197 | _i2c_period = i2c_bus->i2c_period; | |
198 | _i2c_nostop = i2c_bus->i2c_nostop; | |
199 | _i2c_reserve = i2c_bus->i2c_reserve; | |
200 | ||
201 | saddr_len = req_data->saddr_len; | |
202 | ||
203 | /* Set wValue */ | |
204 | if (saddr_len == 1) /* need check saddr_len == 0 */ | |
205 | ven_req.wValue = | |
206 | req_data-> | |
207 | dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 | | |
208 | _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6; | |
209 | else | |
210 | ven_req.wValue = | |
211 | req_data-> | |
212 | dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 | | |
213 | _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6; | |
214 | ||
215 | /* set channel number */ | |
b9255176 SD |
216 | if (req_data->direction & I2C_M_RD) { |
217 | /* channel number, for read,spec required channel_num +4 */ | |
218 | ven_req.bRequest = i2c_bus->nr + 4; | |
219 | } else | |
84b5dbf3 MCC |
220 | ven_req.bRequest = i2c_bus->nr; /* channel number, */ |
221 | ||
222 | /* set index value */ | |
223 | switch (saddr_len) { | |
224 | case 0: | |
225 | ven_req.wIndex = 0; /* need check */ | |
226 | break; | |
227 | case 1: | |
228 | ven_req.wIndex = (req_data->saddr_dat & 0xff); | |
229 | break; | |
230 | case 2: | |
231 | ven_req.wIndex = req_data->saddr_dat; | |
232 | break; | |
233 | } | |
234 | ||
235 | /* set wLength value */ | |
236 | ven_req.wLength = req_data->buf_size; | |
237 | ||
238 | /* set bData value */ | |
239 | ven_req.bData = 0; | |
240 | ||
241 | /* set the direction */ | |
242 | if (req_data->direction) { | |
243 | ven_req.direction = USB_DIR_IN; | |
244 | memset(req_data->p_buffer, 0x00, ven_req.wLength); | |
245 | } else | |
246 | ven_req.direction = USB_DIR_OUT; | |
247 | ||
248 | /* set the buffer for read / write */ | |
249 | ven_req.pBuff = req_data->p_buffer; | |
250 | ||
251 | ||
252 | /* call common vendor command request */ | |
253 | status = cx231xx_send_vendor_cmd(dev, &ven_req); | |
254 | if (status < 0) { | |
255 | cx231xx_info | |
b9255176 | 256 | ("UsbInterface::sendCommand, failed with status -%d\n", |
84b5dbf3 MCC |
257 | status); |
258 | } | |
259 | ||
260 | return status; | |
e0d3bafd | 261 | } |
e0d3bafd | 262 | EXPORT_SYMBOL_GPL(cx231xx_send_usb_command); |
b9255176 | 263 | |
e0d3bafd SD |
264 | /* |
265 | * cx231xx_read_ctrl_reg() | |
266 | * reads data from the usb device specifying bRequest and wValue | |
267 | */ | |
268 | int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, | |
84b5dbf3 | 269 | char *buf, int len) |
e0d3bafd | 270 | { |
84b5dbf3 | 271 | u8 val = 0; |
e0d3bafd SD |
272 | int ret; |
273 | int pipe = usb_rcvctrlpipe(dev->udev, 0); | |
274 | ||
275 | if (dev->state & DEV_DISCONNECTED) | |
276 | return -ENODEV; | |
277 | ||
278 | if (len > URB_MAX_CTRL_SIZE) | |
279 | return -EINVAL; | |
280 | ||
84b5dbf3 MCC |
281 | switch (len) { |
282 | case 1: | |
283 | val = ENABLE_ONE_BYTE; | |
284 | break; | |
285 | case 2: | |
286 | val = ENABLE_TWE_BYTE; | |
287 | break; | |
288 | case 3: | |
289 | val = ENABLE_THREE_BYTE; | |
290 | break; | |
291 | case 4: | |
292 | val = ENABLE_FOUR_BYTE; | |
293 | break; | |
294 | default: | |
295 | val = 0xFF; /* invalid option */ | |
296 | } | |
297 | ||
298 | if (val == 0xFF) | |
299 | return -EINVAL; | |
e0d3bafd SD |
300 | |
301 | if (reg_debug) { | |
302 | cx231xx_isocdbg("(pipe 0x%08x): " | |
84b5dbf3 MCC |
303 | "IN: %02x %02x %02x %02x %02x %02x %02x %02x ", |
304 | pipe, | |
305 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
306 | req, 0, val, | |
307 | reg & 0xff, reg >> 8, len & 0xff, len >> 8); | |
e0d3bafd SD |
308 | } |
309 | ||
6e4f574b | 310 | mutex_lock(&dev->ctrl_urb_lock); |
e0d3bafd SD |
311 | ret = usb_control_msg(dev->udev, pipe, req, |
312 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
313 | val, reg, dev->urb_buf, len, HZ); | |
314 | if (ret < 0) { | |
315 | cx231xx_isocdbg(" failed!\n"); | |
316 | /* mutex_unlock(&dev->ctrl_urb_lock); */ | |
317 | return ret; | |
318 | } | |
319 | ||
320 | if (len) | |
321 | memcpy(buf, dev->urb_buf, len); | |
322 | ||
6e4f574b | 323 | mutex_unlock(&dev->ctrl_urb_lock); |
e0d3bafd SD |
324 | |
325 | if (reg_debug) { | |
326 | int byte; | |
327 | ||
328 | cx231xx_isocdbg("<<<"); | |
329 | for (byte = 0; byte < len; byte++) | |
330 | cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]); | |
331 | cx231xx_isocdbg("\n"); | |
332 | } | |
333 | ||
334 | return ret; | |
335 | } | |
336 | ||
b9255176 SD |
337 | int cx231xx_send_vendor_cmd(struct cx231xx *dev, |
338 | struct VENDOR_REQUEST_IN *ven_req) | |
e0d3bafd | 339 | { |
84b5dbf3 | 340 | int ret; |
e0d3bafd SD |
341 | int pipe = 0; |
342 | ||
343 | if (dev->state & DEV_DISCONNECTED) | |
344 | return -ENODEV; | |
345 | ||
346 | if ((ven_req->wLength > URB_MAX_CTRL_SIZE)) | |
347 | return -EINVAL; | |
348 | ||
84b5dbf3 MCC |
349 | if (ven_req->direction) |
350 | pipe = usb_rcvctrlpipe(dev->udev, 0); | |
351 | else | |
352 | pipe = usb_sndctrlpipe(dev->udev, 0); | |
e0d3bafd SD |
353 | |
354 | if (reg_debug) { | |
355 | int byte; | |
356 | ||
357 | cx231xx_isocdbg("(pipe 0x%08x): " | |
84b5dbf3 MCC |
358 | "OUT: %02x %02x %02x %04x %04x %04x >>>", |
359 | pipe, | |
360 | ven_req-> | |
361 | direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
362 | ven_req->bRequest, 0, ven_req->wValue, | |
363 | ven_req->wIndex, ven_req->wLength); | |
e0d3bafd SD |
364 | |
365 | for (byte = 0; byte < ven_req->wLength; byte++) | |
84b5dbf3 MCC |
366 | cx231xx_isocdbg(" %02x", |
367 | (unsigned char)ven_req->pBuff[byte]); | |
e0d3bafd SD |
368 | cx231xx_isocdbg("\n"); |
369 | } | |
370 | ||
6e4f574b | 371 | mutex_lock(&dev->ctrl_urb_lock); |
e0d3bafd | 372 | ret = usb_control_msg(dev->udev, pipe, ven_req->bRequest, |
84b5dbf3 MCC |
373 | ven_req-> |
374 | direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
375 | ven_req->wValue, ven_req->wIndex, ven_req->pBuff, | |
376 | ven_req->wLength, HZ); | |
6e4f574b | 377 | mutex_unlock(&dev->ctrl_urb_lock); |
e0d3bafd SD |
378 | |
379 | return ret; | |
380 | } | |
381 | ||
382 | /* | |
383 | * cx231xx_write_ctrl_reg() | |
384 | * sends data to the usb device, specifying bRequest | |
385 | */ | |
386 | int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf, | |
84b5dbf3 | 387 | int len) |
e0d3bafd | 388 | { |
84b5dbf3 | 389 | u8 val = 0; |
e0d3bafd SD |
390 | int ret; |
391 | int pipe = usb_sndctrlpipe(dev->udev, 0); | |
392 | ||
393 | if (dev->state & DEV_DISCONNECTED) | |
394 | return -ENODEV; | |
395 | ||
396 | if ((len < 1) || (len > URB_MAX_CTRL_SIZE)) | |
397 | return -EINVAL; | |
398 | ||
84b5dbf3 MCC |
399 | switch (len) { |
400 | case 1: | |
401 | val = ENABLE_ONE_BYTE; | |
402 | break; | |
403 | case 2: | |
404 | val = ENABLE_TWE_BYTE; | |
405 | break; | |
406 | case 3: | |
407 | val = ENABLE_THREE_BYTE; | |
408 | break; | |
409 | case 4: | |
410 | val = ENABLE_FOUR_BYTE; | |
411 | break; | |
412 | default: | |
413 | val = 0xFF; /* invalid option */ | |
414 | } | |
415 | ||
416 | if (val == 0xFF) | |
417 | return -EINVAL; | |
e0d3bafd SD |
418 | |
419 | if (reg_debug) { | |
420 | int byte; | |
421 | ||
422 | cx231xx_isocdbg("(pipe 0x%08x): " | |
b9255176 SD |
423 | "OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>", |
424 | pipe, | |
425 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
426 | req, 0, val, reg & 0xff, | |
427 | reg >> 8, len & 0xff, len >> 8); | |
e0d3bafd SD |
428 | |
429 | for (byte = 0; byte < len; byte++) | |
430 | cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]); | |
431 | cx231xx_isocdbg("\n"); | |
432 | } | |
433 | ||
6e4f574b | 434 | mutex_lock(&dev->ctrl_urb_lock); |
e0d3bafd SD |
435 | memcpy(dev->urb_buf, buf, len); |
436 | ret = usb_control_msg(dev->udev, pipe, req, | |
437 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
438 | val, reg, dev->urb_buf, len, HZ); | |
6e4f574b | 439 | mutex_unlock(&dev->ctrl_urb_lock); |
e0d3bafd SD |
440 | |
441 | return ret; | |
442 | } | |
443 | ||
b9255176 SD |
444 | /**************************************************************** |
445 | * USB Alternate Setting functions * | |
446 | *****************************************************************/ | |
e0d3bafd SD |
447 | |
448 | int cx231xx_set_video_alternate(struct cx231xx *dev) | |
449 | { | |
450 | int errCode, prev_alt = dev->video_mode.alt; | |
451 | unsigned int min_pkt_size = dev->width * 2 + 4; | |
84b5dbf3 | 452 | u32 usb_interface_index = 0; |
e0d3bafd SD |
453 | |
454 | /* When image size is bigger than a certain value, | |
455 | the frame size should be increased, otherwise, only | |
456 | green screen will be received. | |
457 | */ | |
458 | if (dev->width * 2 * dev->height > 720 * 240 * 2) | |
459 | min_pkt_size *= 2; | |
460 | ||
84b5dbf3 MCC |
461 | if (dev->width > 360) { |
462 | /* resolutions: 720,704,640 */ | |
463 | dev->video_mode.alt = 3; | |
464 | } else if (dev->width > 180) { | |
465 | /* resolutions: 360,352,320,240 */ | |
466 | dev->video_mode.alt = 2; | |
467 | } else if (dev->width > 0) { | |
468 | /* resolutions: 180,176,160,128,88 */ | |
469 | dev->video_mode.alt = 1; | |
470 | } else { | |
471 | /* Change to alt0 BULK to release USB bandwidth */ | |
472 | dev->video_mode.alt = 0; | |
473 | } | |
474 | ||
475 | /* Get the correct video interface Index */ | |
476 | usb_interface_index = | |
477 | dev->current_pcb_config.hs_config_info[0].interface_info. | |
478 | video_index + 1; | |
e0d3bafd SD |
479 | |
480 | if (dev->video_mode.alt != prev_alt) { | |
481 | cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n", | |
482 | min_pkt_size, dev->video_mode.alt); | |
84b5dbf3 MCC |
483 | dev->video_mode.max_pkt_size = |
484 | dev->video_mode.alt_max_pkt_size[dev->video_mode.alt]; | |
e0d3bafd | 485 | cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n", |
84b5dbf3 MCC |
486 | dev->video_mode.alt, |
487 | dev->video_mode.max_pkt_size); | |
488 | cx231xx_info | |
b9255176 | 489 | (" setting alt %d with wMaxPktSize=%u , Interface = %d\n", |
84b5dbf3 MCC |
490 | dev->video_mode.alt, dev->video_mode.max_pkt_size, |
491 | usb_interface_index); | |
492 | errCode = | |
493 | usb_set_interface(dev->udev, usb_interface_index, | |
494 | dev->video_mode.alt); | |
e0d3bafd | 495 | if (errCode < 0) { |
84b5dbf3 | 496 | cx231xx_errdev |
b9255176 | 497 | ("cannot change alt number to %d (error=%i)\n", |
84b5dbf3 | 498 | dev->video_mode.alt, errCode); |
e0d3bafd SD |
499 | return errCode; |
500 | } | |
501 | } | |
502 | return 0; | |
503 | } | |
504 | ||
505 | int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt) | |
506 | { | |
84b5dbf3 MCC |
507 | int status = 0; |
508 | u32 usb_interface_index = 0; | |
509 | u32 max_pkt_size = 0; | |
510 | ||
511 | switch (index) { | |
512 | case INDEX_TS1: | |
513 | usb_interface_index = | |
514 | dev->current_pcb_config.hs_config_info[0].interface_info. | |
515 | ts1_index + 1; | |
516 | dev->video_mode.alt = alt; | |
517 | if (dev->ts1_mode.alt_max_pkt_size != NULL) | |
518 | max_pkt_size = dev->ts1_mode.max_pkt_size = | |
519 | dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt]; | |
520 | break; | |
521 | case INDEX_TS2: | |
522 | usb_interface_index = | |
523 | dev->current_pcb_config.hs_config_info[0].interface_info. | |
524 | ts2_index + 1; | |
525 | break; | |
526 | case INDEX_AUDIO: | |
527 | usb_interface_index = | |
528 | dev->current_pcb_config.hs_config_info[0].interface_info. | |
529 | audio_index + 1; | |
530 | dev->adev.alt = alt; | |
531 | if (dev->adev.alt_max_pkt_size != NULL) | |
532 | max_pkt_size = dev->adev.max_pkt_size = | |
533 | dev->adev.alt_max_pkt_size[dev->adev.alt]; | |
534 | break; | |
535 | case INDEX_VIDEO: | |
536 | usb_interface_index = | |
537 | dev->current_pcb_config.hs_config_info[0].interface_info. | |
538 | video_index + 1; | |
539 | dev->video_mode.alt = alt; | |
540 | if (dev->video_mode.alt_max_pkt_size != NULL) | |
541 | max_pkt_size = dev->video_mode.max_pkt_size = | |
542 | dev->video_mode.alt_max_pkt_size[dev->video_mode. | |
543 | alt]; | |
544 | break; | |
545 | case INDEX_VANC: | |
546 | usb_interface_index = | |
547 | dev->current_pcb_config.hs_config_info[0].interface_info. | |
548 | vanc_index + 1; | |
549 | dev->vbi_mode.alt = alt; | |
550 | if (dev->vbi_mode.alt_max_pkt_size != NULL) | |
551 | max_pkt_size = dev->vbi_mode.max_pkt_size = | |
552 | dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt]; | |
553 | break; | |
554 | case INDEX_HANC: | |
555 | usb_interface_index = | |
556 | dev->current_pcb_config.hs_config_info[0].interface_info. | |
557 | hanc_index + 1; | |
558 | dev->sliced_cc_mode.alt = alt; | |
559 | if (dev->sliced_cc_mode.alt_max_pkt_size != NULL) | |
560 | max_pkt_size = dev->sliced_cc_mode.max_pkt_size = | |
561 | dev->sliced_cc_mode.alt_max_pkt_size[dev-> | |
562 | sliced_cc_mode. | |
563 | alt]; | |
564 | break; | |
565 | default: | |
566 | break; | |
567 | } | |
568 | ||
569 | if (alt > 0 && max_pkt_size == 0) { | |
570 | cx231xx_errdev | |
b9255176 SD |
571 | ("can't change interface %d alt no. to %d: Max. Pkt size = 0\n", |
572 | usb_interface_index, alt); | |
84b5dbf3 MCC |
573 | return -1; |
574 | } | |
575 | ||
576 | cx231xx_info | |
577 | (" setting alternate %d with wMaxPacketSize=%u , Interface = %d\n", | |
578 | alt, max_pkt_size, usb_interface_index); | |
579 | ||
580 | if (usb_interface_index > 0) { | |
581 | status = usb_set_interface(dev->udev, usb_interface_index, alt); | |
e0d3bafd | 582 | if (status < 0) { |
84b5dbf3 | 583 | cx231xx_errdev |
b9255176 SD |
584 | ("can't change interface %d alt no. to %d (err=%i)\n", |
585 | usb_interface_index, alt, status); | |
e0d3bafd SD |
586 | return status; |
587 | } | |
84b5dbf3 | 588 | } |
e0d3bafd | 589 | |
84b5dbf3 | 590 | return status; |
e0d3bafd SD |
591 | } |
592 | EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting); | |
593 | ||
594 | int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio) | |
595 | { | |
596 | int rc = 0; | |
597 | ||
598 | if (!gpio) | |
599 | return rc; | |
600 | ||
601 | /* Send GPIO reset sequences specified at board entry */ | |
602 | while (gpio->sleep >= 0) { | |
84b5dbf3 MCC |
603 | rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val); |
604 | if (rc < 0) | |
605 | return rc; | |
e0d3bafd SD |
606 | |
607 | if (gpio->sleep > 0) | |
608 | msleep(gpio->sleep); | |
609 | ||
610 | gpio++; | |
611 | } | |
612 | return rc; | |
613 | } | |
614 | ||
615 | int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode) | |
616 | { | |
617 | if (dev->mode == set_mode) | |
618 | return 0; | |
619 | ||
620 | if (set_mode == CX231XX_SUSPEND) { | |
84b5dbf3 | 621 | /* Set the chip in power saving mode */ |
e0d3bafd SD |
622 | dev->mode = set_mode; |
623 | } | |
624 | ||
625 | /* Resource is locked */ | |
626 | if (dev->mode != CX231XX_SUSPEND) | |
627 | return -EINVAL; | |
628 | ||
629 | dev->mode = set_mode; | |
630 | ||
b9255176 SD |
631 | if (dev->mode == CX231XX_DIGITAL_MODE) |
632 | ;/* Set Digital power mode */ | |
633 | else | |
634 | ;/* Set Analog Power mode */ | |
635 | ||
84b5dbf3 | 636 | return 0; |
e0d3bafd SD |
637 | } |
638 | EXPORT_SYMBOL_GPL(cx231xx_set_mode); | |
639 | ||
b9255176 SD |
640 | /***************************************************************** |
641 | * URB Streaming functions * | |
642 | ******************************************************************/ | |
e0d3bafd SD |
643 | |
644 | /* | |
645 | * IRQ callback, called by URB callback | |
646 | */ | |
647 | static void cx231xx_irq_callback(struct urb *urb) | |
648 | { | |
84b5dbf3 MCC |
649 | struct cx231xx_dmaqueue *dma_q = urb->context; |
650 | struct cx231xx_video_mode *vmode = | |
651 | container_of(dma_q, struct cx231xx_video_mode, vidq); | |
652 | struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode); | |
e0d3bafd SD |
653 | int rc, i; |
654 | ||
84b5dbf3 MCC |
655 | switch (urb->status) { |
656 | case 0: /* success */ | |
657 | case -ETIMEDOUT: /* NAK */ | |
658 | break; | |
659 | case -ECONNRESET: /* kill */ | |
660 | case -ENOENT: | |
661 | case -ESHUTDOWN: | |
662 | return; | |
663 | default: /* error */ | |
664 | cx231xx_isocdbg("urb completition error %d.\n", urb->status); | |
665 | break; | |
e0d3bafd SD |
666 | } |
667 | ||
668 | /* Copy data from URB */ | |
669 | spin_lock(&dev->video_mode.slock); | |
670 | rc = dev->video_mode.isoc_ctl.isoc_copy(dev, urb); | |
671 | spin_unlock(&dev->video_mode.slock); | |
672 | ||
673 | /* Reset urb buffers */ | |
674 | for (i = 0; i < urb->number_of_packets; i++) { | |
675 | urb->iso_frame_desc[i].status = 0; | |
676 | urb->iso_frame_desc[i].actual_length = 0; | |
677 | } | |
678 | urb->status = 0; | |
679 | ||
680 | urb->status = usb_submit_urb(urb, GFP_ATOMIC); | |
681 | if (urb->status) { | |
682 | cx231xx_isocdbg("urb resubmit failed (error=%i)\n", | |
84b5dbf3 | 683 | urb->status); |
e0d3bafd SD |
684 | } |
685 | } | |
686 | ||
687 | /* | |
688 | * Stop and Deallocate URBs | |
689 | */ | |
690 | void cx231xx_uninit_isoc(struct cx231xx *dev) | |
691 | { | |
692 | struct urb *urb; | |
693 | int i; | |
694 | ||
695 | cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n"); | |
696 | ||
697 | dev->video_mode.isoc_ctl.nfields = -1; | |
698 | for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) { | |
699 | urb = dev->video_mode.isoc_ctl.urb[i]; | |
700 | if (urb) { | |
84b5dbf3 MCC |
701 | if (!irqs_disabled()) |
702 | usb_kill_urb(urb); | |
703 | else | |
704 | usb_unlink_urb(urb); | |
e0d3bafd SD |
705 | |
706 | if (dev->video_mode.isoc_ctl.transfer_buffer[i]) { | |
707 | usb_buffer_free(dev->udev, | |
84b5dbf3 MCC |
708 | urb->transfer_buffer_length, |
709 | dev->video_mode.isoc_ctl. | |
710 | transfer_buffer[i], | |
711 | urb->transfer_dma); | |
e0d3bafd SD |
712 | } |
713 | usb_free_urb(urb); | |
714 | dev->video_mode.isoc_ctl.urb[i] = NULL; | |
715 | } | |
716 | dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL; | |
717 | } | |
718 | ||
719 | kfree(dev->video_mode.isoc_ctl.urb); | |
720 | kfree(dev->video_mode.isoc_ctl.transfer_buffer); | |
721 | ||
722 | dev->video_mode.isoc_ctl.urb = NULL; | |
723 | dev->video_mode.isoc_ctl.transfer_buffer = NULL; | |
724 | dev->video_mode.isoc_ctl.num_bufs = 0; | |
725 | ||
726 | cx231xx_capture_start(dev, 0, Raw_Video); | |
727 | } | |
728 | EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc); | |
729 | ||
730 | /* | |
731 | * Allocate URBs and start IRQ | |
732 | */ | |
733 | int cx231xx_init_isoc(struct cx231xx *dev, int max_packets, | |
84b5dbf3 | 734 | int num_bufs, int max_pkt_size, |
b9255176 | 735 | int (*isoc_copy) (struct cx231xx *dev, struct urb *urb)) |
e0d3bafd SD |
736 | { |
737 | struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq; | |
738 | int i; | |
739 | int sb_size, pipe; | |
740 | struct urb *urb; | |
741 | int j, k; | |
742 | int rc; | |
743 | ||
744 | cx231xx_isocdbg("cx231xx: called cx231xx_prepare_isoc\n"); | |
745 | ||
84b5dbf3 | 746 | dev->video_input = dev->video_input > 2 ? 2 : dev->video_input; |
e0d3bafd | 747 | |
84b5dbf3 MCC |
748 | cx231xx_info("Setting Video mux to %d\n", dev->video_input); |
749 | video_mux(dev, dev->video_input); | |
e0d3bafd SD |
750 | |
751 | /* De-allocates all pending stuff */ | |
752 | cx231xx_uninit_isoc(dev); | |
753 | ||
754 | dev->video_mode.isoc_ctl.isoc_copy = isoc_copy; | |
755 | dev->video_mode.isoc_ctl.num_bufs = num_bufs; | |
84b5dbf3 MCC |
756 | dma_q->pos = 0; |
757 | dma_q->is_partial_line = 0; | |
758 | dma_q->last_sav = 0; | |
759 | dma_q->current_field = -1; | |
760 | dma_q->field1_done = 0; | |
761 | dma_q->lines_per_field = dev->height / 2; | |
762 | dma_q->bytes_left_in_line = dev->width << 1; | |
763 | dma_q->lines_completed = 0; | |
764 | for (i = 0; i < 8; i++) | |
765 | dma_q->partial_buf[i] = 0; | |
766 | ||
767 | dev->video_mode.isoc_ctl.urb = | |
768 | kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL); | |
e0d3bafd SD |
769 | if (!dev->video_mode.isoc_ctl.urb) { |
770 | cx231xx_errdev("cannot alloc memory for usb buffers\n"); | |
771 | return -ENOMEM; | |
772 | } | |
773 | ||
84b5dbf3 MCC |
774 | dev->video_mode.isoc_ctl.transfer_buffer = |
775 | kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL); | |
e0d3bafd SD |
776 | if (!dev->video_mode.isoc_ctl.transfer_buffer) { |
777 | cx231xx_errdev("cannot allocate memory for usbtransfer\n"); | |
778 | kfree(dev->video_mode.isoc_ctl.urb); | |
779 | return -ENOMEM; | |
780 | } | |
781 | ||
782 | dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size; | |
783 | dev->video_mode.isoc_ctl.buf = NULL; | |
784 | ||
785 | sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size; | |
786 | ||
787 | /* allocate urbs and transfer buffers */ | |
788 | for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) { | |
789 | urb = usb_alloc_urb(max_packets, GFP_KERNEL); | |
790 | if (!urb) { | |
791 | cx231xx_err("cannot alloc isoc_ctl.urb %i\n", i); | |
792 | cx231xx_uninit_isoc(dev); | |
793 | return -ENOMEM; | |
794 | } | |
795 | dev->video_mode.isoc_ctl.urb[i] = urb; | |
796 | ||
84b5dbf3 MCC |
797 | dev->video_mode.isoc_ctl.transfer_buffer[i] = |
798 | usb_buffer_alloc(dev->udev, sb_size, GFP_KERNEL, | |
799 | &urb->transfer_dma); | |
e0d3bafd SD |
800 | if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) { |
801 | cx231xx_err("unable to allocate %i bytes for transfer" | |
84b5dbf3 MCC |
802 | " buffer %i%s\n", |
803 | sb_size, i, | |
b9255176 | 804 | in_interrupt() ? " while in int" : ""); |
e0d3bafd SD |
805 | cx231xx_uninit_isoc(dev); |
806 | return -ENOMEM; | |
807 | } | |
808 | memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size); | |
809 | ||
84b5dbf3 MCC |
810 | pipe = |
811 | usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr); | |
e0d3bafd SD |
812 | |
813 | usb_fill_int_urb(urb, dev->udev, pipe, | |
84b5dbf3 MCC |
814 | dev->video_mode.isoc_ctl.transfer_buffer[i], |
815 | sb_size, cx231xx_irq_callback, dma_q, 1); | |
e0d3bafd SD |
816 | |
817 | urb->number_of_packets = max_packets; | |
818 | urb->transfer_flags = URB_ISO_ASAP; | |
819 | ||
820 | k = 0; | |
821 | for (j = 0; j < max_packets; j++) { | |
822 | urb->iso_frame_desc[j].offset = k; | |
823 | urb->iso_frame_desc[j].length = | |
84b5dbf3 | 824 | dev->video_mode.isoc_ctl.max_pkt_size; |
e0d3bafd SD |
825 | k += dev->video_mode.isoc_ctl.max_pkt_size; |
826 | } | |
827 | } | |
828 | ||
829 | init_waitqueue_head(&dma_q->wq); | |
830 | ||
e0d3bafd SD |
831 | /* submit urbs and enables IRQ */ |
832 | for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) { | |
84b5dbf3 MCC |
833 | rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i], |
834 | GFP_ATOMIC); | |
e0d3bafd SD |
835 | if (rc) { |
836 | cx231xx_err("submit of urb %i failed (error=%i)\n", i, | |
84b5dbf3 | 837 | rc); |
e0d3bafd SD |
838 | cx231xx_uninit_isoc(dev); |
839 | return rc; | |
840 | } | |
841 | } | |
842 | ||
84b5dbf3 | 843 | cx231xx_capture_start(dev, 1, Raw_Video); |
e0d3bafd SD |
844 | |
845 | return 0; | |
846 | } | |
847 | EXPORT_SYMBOL_GPL(cx231xx_init_isoc); | |
848 | ||
b9255176 SD |
849 | /***************************************************************** |
850 | * Device Init/UnInit functions * | |
851 | ******************************************************************/ | |
e0d3bafd SD |
852 | int cx231xx_dev_init(struct cx231xx *dev) |
853 | { | |
84b5dbf3 | 854 | int errCode = 0; |
e0d3bafd | 855 | |
84b5dbf3 | 856 | /* Initialize I2C bus */ |
e0d3bafd SD |
857 | |
858 | /* External Master 1 Bus */ | |
859 | dev->i2c_bus[0].nr = 0; | |
860 | dev->i2c_bus[0].dev = dev; | |
84b5dbf3 MCC |
861 | dev->i2c_bus[0].i2c_period = I2C_SPEED_1M; /* 1MHz */ |
862 | dev->i2c_bus[0].i2c_nostop = 0; | |
863 | dev->i2c_bus[0].i2c_reserve = 0; | |
e0d3bafd SD |
864 | |
865 | /* External Master 2 Bus */ | |
866 | dev->i2c_bus[1].nr = 1; | |
867 | dev->i2c_bus[1].dev = dev; | |
84b5dbf3 MCC |
868 | dev->i2c_bus[1].i2c_period = I2C_SPEED_1M; /* 1MHz */ |
869 | dev->i2c_bus[1].i2c_nostop = 0; | |
870 | dev->i2c_bus[1].i2c_reserve = 0; | |
e0d3bafd SD |
871 | |
872 | /* Internal Master 3 Bus */ | |
873 | dev->i2c_bus[2].nr = 2; | |
874 | dev->i2c_bus[2].dev = dev; | |
84b5dbf3 MCC |
875 | dev->i2c_bus[2].i2c_period = I2C_SPEED_400K; /* 400kHz */ |
876 | dev->i2c_bus[2].i2c_nostop = 0; | |
877 | dev->i2c_bus[2].i2c_reserve = 0; | |
e0d3bafd | 878 | |
84b5dbf3 | 879 | /* register I2C buses */ |
e0d3bafd SD |
880 | cx231xx_i2c_register(&dev->i2c_bus[0]); |
881 | cx231xx_i2c_register(&dev->i2c_bus[1]); | |
882 | cx231xx_i2c_register(&dev->i2c_bus[2]); | |
883 | ||
84b5dbf3 | 884 | /* init hardware */ |
b9255176 SD |
885 | /* Note : with out calling set power mode function, |
886 | colibri can not be set up correctly */ | |
84b5dbf3 MCC |
887 | errCode = cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV); |
888 | if (errCode < 0) { | |
889 | cx231xx_errdev | |
b9255176 | 890 | ("%s: Failed to set Power - errCode [%d]!\n", |
84b5dbf3 | 891 | __func__, errCode); |
e0d3bafd SD |
892 | return errCode; |
893 | } | |
894 | ||
84b5dbf3 MCC |
895 | /* initialize Colibri block */ |
896 | errCode = cx231xx_colibri_init_super_block(dev, 0x23c); | |
e0d3bafd | 897 | if (errCode < 0) { |
84b5dbf3 MCC |
898 | cx231xx_errdev |
899 | ("%s: cx231xx_colibri init super block - errCode [%d]!\n", | |
900 | __func__, errCode); | |
e0d3bafd SD |
901 | return errCode; |
902 | } | |
84b5dbf3 MCC |
903 | errCode = cx231xx_colibri_init_channels(dev); |
904 | if (errCode < 0) { | |
905 | cx231xx_errdev | |
906 | ("%s: cx231xx_colibri init channels - errCode [%d]!\n", | |
907 | __func__, errCode); | |
e0d3bafd SD |
908 | return errCode; |
909 | } | |
910 | ||
84b5dbf3 MCC |
911 | /* Set DIF in By pass mode */ |
912 | errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND); | |
913 | if (errCode < 0) { | |
914 | cx231xx_errdev | |
915 | ("%s: cx231xx_dif set to By pass mode - errCode [%d]!\n", | |
916 | __func__, errCode); | |
e0d3bafd SD |
917 | return errCode; |
918 | } | |
919 | ||
84b5dbf3 MCC |
920 | /* flatiron related functions */ |
921 | errCode = cx231xx_flatiron_initialize(dev); | |
922 | if (errCode < 0) { | |
923 | cx231xx_errdev | |
924 | ("%s: cx231xx_flatiron initialize - errCode [%d]!\n", | |
925 | __func__, errCode); | |
e0d3bafd SD |
926 | return errCode; |
927 | } | |
928 | ||
84b5dbf3 MCC |
929 | /* init control pins */ |
930 | errCode = cx231xx_init_ctrl_pin_status(dev); | |
931 | if (errCode < 0) { | |
e0d3bafd | 932 | cx231xx_errdev("%s: cx231xx_init ctrl pins - errCode [%d]!\n", |
84b5dbf3 | 933 | __func__, errCode); |
e0d3bafd SD |
934 | return errCode; |
935 | } | |
936 | ||
84b5dbf3 MCC |
937 | /* set AGC mode to Analog */ |
938 | errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1); | |
939 | if (errCode < 0) { | |
940 | cx231xx_errdev | |
941 | ("%s: cx231xx_AGC mode to Analog - errCode [%d]!\n", | |
942 | __func__, errCode); | |
e0d3bafd SD |
943 | return errCode; |
944 | } | |
945 | ||
84b5dbf3 MCC |
946 | /* set all alternate settings to zero initially */ |
947 | cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0); | |
948 | cx231xx_set_alt_setting(dev, INDEX_VANC, 0); | |
949 | cx231xx_set_alt_setting(dev, INDEX_HANC, 0); | |
950 | if (dev->board.has_dvb) | |
951 | cx231xx_set_alt_setting(dev, INDEX_TS1, 0); | |
e0d3bafd | 952 | |
84b5dbf3 MCC |
953 | /* set the I2C master port to 3 on channel 1 */ |
954 | errCode = cx231xx_enable_i2c_for_tuner(dev, I2C_3); | |
e0d3bafd SD |
955 | |
956 | return errCode; | |
957 | } | |
958 | EXPORT_SYMBOL_GPL(cx231xx_dev_init); | |
959 | ||
960 | void cx231xx_dev_uninit(struct cx231xx *dev) | |
961 | { | |
84b5dbf3 | 962 | /* Un Initialize I2C bus */ |
e0d3bafd SD |
963 | cx231xx_i2c_unregister(&dev->i2c_bus[2]); |
964 | cx231xx_i2c_unregister(&dev->i2c_bus[1]); | |
965 | cx231xx_i2c_unregister(&dev->i2c_bus[0]); | |
966 | } | |
84b5dbf3 | 967 | EXPORT_SYMBOL_GPL(cx231xx_dev_uninit); |
e0d3bafd | 968 | |
b9255176 SD |
969 | /***************************************************************** |
970 | * G P I O related functions * | |
971 | ******************************************************************/ | |
84b5dbf3 MCC |
972 | int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 * gpio_val, |
973 | u8 len, u8 request, u8 direction) | |
e0d3bafd | 974 | { |
84b5dbf3 | 975 | int status = 0; |
b9255176 | 976 | struct VENDOR_REQUEST_IN ven_req; |
84b5dbf3 MCC |
977 | |
978 | /* Set wValue */ | |
979 | ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff); | |
980 | ||
981 | /* set request */ | |
982 | if (!request) { | |
983 | if (direction) | |
984 | ven_req.bRequest = VRT_GET_GPIO; /* 0x8 gpio */ | |
985 | else | |
986 | ven_req.bRequest = VRT_SET_GPIO; /* 0x9 gpio */ | |
987 | } else { | |
988 | if (direction) | |
989 | ven_req.bRequest = VRT_GET_GPIE; /* 0xa gpie */ | |
990 | else | |
991 | ven_req.bRequest = VRT_SET_GPIE; /* 0xb gpie */ | |
992 | } | |
e0d3bafd | 993 | |
84b5dbf3 MCC |
994 | /* set index value */ |
995 | ven_req.wIndex = (u16) (gpio_bit & 0xffff); | |
e0d3bafd | 996 | |
84b5dbf3 MCC |
997 | /* set wLength value */ |
998 | ven_req.wLength = len; | |
e0d3bafd | 999 | |
84b5dbf3 MCC |
1000 | /* set bData value */ |
1001 | ven_req.bData = 0; | |
e0d3bafd | 1002 | |
84b5dbf3 MCC |
1003 | /* set the buffer for read / write */ |
1004 | ven_req.pBuff = gpio_val; | |
1005 | ||
1006 | /* set the direction */ | |
1007 | if (direction) { | |
1008 | ven_req.direction = USB_DIR_IN; | |
1009 | memset(ven_req.pBuff, 0x00, ven_req.wLength); | |
1010 | } else | |
1011 | ven_req.direction = USB_DIR_OUT; | |
1012 | ||
1013 | ||
1014 | /* call common vendor command request */ | |
1015 | status = cx231xx_send_vendor_cmd(dev, &ven_req); | |
1016 | if (status < 0) { | |
1017 | cx231xx_info | |
b9255176 | 1018 | ("UsbInterface::sendCommand, failed with status -%d\n", |
84b5dbf3 MCC |
1019 | status); |
1020 | } | |
e0d3bafd | 1021 | |
84b5dbf3 | 1022 | return status; |
e0d3bafd | 1023 | } |
e0d3bafd SD |
1024 | EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd); |
1025 | ||
b9255176 SD |
1026 | /***************************************************************** |
1027 | * C O N T R O L - Register R E A D / W R I T E functions * | |
1028 | *****************************************************************/ | |
e0d3bafd SD |
1029 | int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode) |
1030 | { | |
84b5dbf3 MCC |
1031 | u8 value[4] = { 0x0, 0x0, 0x0, 0x0 }; |
1032 | u32 tmp = 0; | |
1033 | int status = 0; | |
e0d3bafd | 1034 | |
84b5dbf3 MCC |
1035 | status = |
1036 | cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4); | |
1037 | if (status < 0) | |
1038 | return status; | |
e0d3bafd | 1039 | |
84b5dbf3 MCC |
1040 | tmp = *((u32 *) value); |
1041 | tmp |= mode; | |
e0d3bafd | 1042 | |
84b5dbf3 MCC |
1043 | value[0] = (u8) tmp; |
1044 | value[1] = (u8) (tmp >> 8); | |
1045 | value[2] = (u8) (tmp >> 16); | |
1046 | value[3] = (u8) (tmp >> 24); | |
e0d3bafd | 1047 | |
84b5dbf3 MCC |
1048 | status = |
1049 | cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4); | |
e0d3bafd | 1050 | |
84b5dbf3 | 1051 | return status; |
e0d3bafd SD |
1052 | } |
1053 | ||
b9255176 SD |
1054 | /***************************************************************** |
1055 | * I 2 C Internal C O N T R O L functions * | |
1056 | *****************************************************************/ | |
e0d3bafd | 1057 | int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr, |
b9255176 | 1058 | u8 saddr_len, u32 *data, u8 data_len) |
e0d3bafd | 1059 | { |
84b5dbf3 MCC |
1060 | int status = 0; |
1061 | struct cx231xx_i2c_xfer_data req_data; | |
1062 | u8 value[4] = { 0, 0, 0, 0 }; | |
1063 | ||
1064 | if (saddr_len == 0) | |
1065 | saddr = 0; | |
1066 | else if (saddr_len == 0) | |
1067 | saddr &= 0xff; | |
1068 | ||
1069 | /* prepare xfer_data struct */ | |
1070 | req_data.dev_addr = dev_addr >> 1; | |
1071 | req_data.direction = I2C_M_RD; | |
1072 | req_data.saddr_len = saddr_len; | |
1073 | req_data.saddr_dat = saddr; | |
1074 | req_data.buf_size = data_len; | |
1075 | req_data.p_buffer = (u8 *) value; | |
1076 | ||
1077 | /* usb send command */ | |
1078 | status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data); | |
1079 | ||
1080 | if (status >= 0) { | |
1081 | /* Copy the data read back to main buffer */ | |
1082 | if (data_len == 1) | |
1083 | *data = value[0]; | |
1084 | else | |
1085 | *data = | |
1086 | value[0] | value[1] << 8 | value[2] << 16 | value[3] | |
1087 | << 24; | |
1088 | } | |
1089 | ||
1090 | return status; | |
e0d3bafd SD |
1091 | } |
1092 | ||
1093 | int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr, | |
84b5dbf3 | 1094 | u8 saddr_len, u32 data, u8 data_len) |
e0d3bafd | 1095 | { |
84b5dbf3 MCC |
1096 | int status = 0; |
1097 | u8 value[4] = { 0, 0, 0, 0 }; | |
1098 | struct cx231xx_i2c_xfer_data req_data; | |
1099 | ||
1100 | value[0] = (u8) data; | |
1101 | value[1] = (u8) (data >> 8); | |
1102 | value[2] = (u8) (data >> 16); | |
1103 | value[3] = (u8) (data >> 24); | |
1104 | ||
1105 | if (saddr_len == 0) | |
1106 | saddr = 0; | |
1107 | else if (saddr_len == 0) | |
1108 | saddr &= 0xff; | |
1109 | ||
1110 | /* prepare xfer_data struct */ | |
1111 | req_data.dev_addr = dev_addr >> 1; | |
1112 | req_data.direction = 0; | |
1113 | req_data.saddr_len = saddr_len; | |
1114 | req_data.saddr_dat = saddr; | |
1115 | req_data.buf_size = data_len; | |
1116 | req_data.p_buffer = value; | |
1117 | ||
1118 | /* usb send command */ | |
1119 | status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data); | |
1120 | ||
1121 | return status; | |
e0d3bafd SD |
1122 | } |
1123 | ||
84b5dbf3 MCC |
1124 | int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size, |
1125 | u16 register_address, u8 bit_start, u8 bit_end, | |
1126 | u32 value) | |
e0d3bafd | 1127 | { |
84b5dbf3 MCC |
1128 | int status = 0; |
1129 | u32 tmp; | |
1130 | u32 mask = 0; | |
1131 | int i; | |
1132 | ||
b9255176 | 1133 | if (bit_start > (size - 1) || bit_end > (size - 1)) |
84b5dbf3 | 1134 | return -1; |
e0d3bafd | 1135 | |
84b5dbf3 MCC |
1136 | if (size == 8) { |
1137 | status = | |
1138 | cx231xx_read_i2c_data(dev, dev_addr, register_address, 2, | |
1139 | &tmp, 1); | |
1140 | } else { | |
1141 | status = | |
1142 | cx231xx_read_i2c_data(dev, dev_addr, register_address, 2, | |
1143 | &tmp, 4); | |
1144 | } | |
e0d3bafd | 1145 | |
b9255176 | 1146 | if (status < 0) |
84b5dbf3 | 1147 | return status; |
84b5dbf3 MCC |
1148 | |
1149 | mask = 1 << bit_end; | |
b9255176 | 1150 | for (i = bit_end; i > bit_start && i > 0; i--) |
84b5dbf3 | 1151 | mask = mask + (1 << (i - 1)); |
84b5dbf3 MCC |
1152 | |
1153 | value <<= bit_start; | |
1154 | ||
1155 | if (size == 8) { | |
1156 | tmp &= ~mask; | |
1157 | tmp |= value; | |
1158 | tmp &= 0xff; | |
1159 | status = | |
1160 | cx231xx_write_i2c_data(dev, dev_addr, register_address, 2, | |
1161 | tmp, 1); | |
1162 | } else { | |
1163 | tmp &= ~mask; | |
1164 | tmp |= value; | |
1165 | status = | |
1166 | cx231xx_write_i2c_data(dev, dev_addr, register_address, 2, | |
1167 | tmp, 4); | |
1168 | } | |
1169 | ||
1170 | return status; | |
1171 | } | |
e0d3bafd SD |
1172 | |
1173 | int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr, | |
84b5dbf3 | 1174 | u16 saddr, u32 mask, u32 value) |
e0d3bafd | 1175 | { |
84b5dbf3 MCC |
1176 | u32 temp; |
1177 | int status = 0; | |
e0d3bafd | 1178 | |
84b5dbf3 | 1179 | status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4); |
e0d3bafd | 1180 | |
84b5dbf3 MCC |
1181 | if (status < 0) |
1182 | return status; | |
e0d3bafd | 1183 | |
84b5dbf3 MCC |
1184 | temp &= ~mask; |
1185 | temp |= value; | |
e0d3bafd | 1186 | |
84b5dbf3 | 1187 | status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4); |
e0d3bafd | 1188 | |
84b5dbf3 | 1189 | return status; |
e0d3bafd SD |
1190 | } |
1191 | ||
1192 | u32 cx231xx_set_field(u32 field_mask, u32 data) | |
1193 | { | |
84b5dbf3 | 1194 | u32 temp; |
e0d3bafd | 1195 | |
b9255176 | 1196 | for (temp = field_mask; (temp & 1) == 0; temp >>= 1) |
84b5dbf3 | 1197 | data <<= 1; |
e0d3bafd | 1198 | |
84b5dbf3 | 1199 | return data; |
e0d3bafd | 1200 | } |