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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61
[linux-block.git] / drivers / media / usb / cx231xx / cx231xx-core.c
CommitLineData
74ba9207 1// SPDX-License-Identifier: GPL-2.0-or-later
e0d3bafd 2/*
b9255176
SD		 3 cx231xx-core.c - driver for Conexant Cx23100/101/102
4 USB video capture devices
e0d3bafd
SD		 5
6 Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
b9255176 7 Based on em28xx driver
e0d3bafd 8
e0d3bafd
SD		 9 */
10
589dadf2 11#include "cx231xx.h"
e0d3bafd
SD		 12#include <linux/init.h>
13#include <linux/list.h>
14#include <linux/module.h>
5a0e3ad6 15#include <linux/slab.h>
e0d3bafd
SD		 16#include <linux/vmalloc.h>
17#include <media/v4l2-common.h>
64fbf444 18#include <media/tuner.h>
e0d3bafd 19
e0d3bafd
SD		 20#include "cx231xx-reg.h"
21
22/* #define ENABLE_DEBUG_ISOC_FRAMES */
23
24static unsigned int core_debug;
84b5dbf3
MCC		 25module_param(core_debug, int, 0644);
26MODULE_PARM_DESC(core_debug, "enable debug messages [core]");
e0d3bafd
SD		 27
28#define cx231xx_coredbg(fmt, arg...) do {\
29 if (core_debug) \
30 printk(KERN_INFO "%s %s :"fmt, \
31 dev->name, __func__ , ##arg); } while (0)
32
33static unsigned int reg_debug;
84b5dbf3
MCC		 34module_param(reg_debug, int, 0644);
35MODULE_PARM_DESC(reg_debug, "enable debug messages [URB reg]");
e0d3bafd 36
e0d3bafd
SD		 37static int alt = CX231XX_PINOUT;
38module_param(alt, int, 0644);
39MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
40
e0d3bafd
SD		 41#define cx231xx_isocdbg(fmt, arg...) do {\
42 if (core_debug) \
43 printk(KERN_INFO "%s %s :"fmt, \
44 dev->name, __func__ , ##arg); } while (0)
45
b9255176 46/*****************************************************************
6e6a8b5a 47* Device control list functions *
b9255176 48******************************************************************/
e0d3bafd 49
64fbf444 50LIST_HEAD(cx231xx_devlist);
e0d3bafd
SD		 51static DEFINE_MUTEX(cx231xx_devlist_mutex);
52
e0d3bafd
SD		 53/*
54 * cx231xx_realease_resources()
55 * unregisters the v4l2,i2c and usb devices
56 * called when the device gets disconected or at module unload
57*/
58void cx231xx_remove_from_devlist(struct cx231xx *dev)
59{
64fbf444
PB		 60 if (dev == NULL)
61 return;
62 if (dev->udev == NULL)
63 return;
64
65 if (atomic_read(&dev->devlist_count) > 0) {
66 mutex_lock(&cx231xx_devlist_mutex);
67 list_del(&dev->devlist);
68 atomic_dec(&dev->devlist_count);
69 mutex_unlock(&cx231xx_devlist_mutex);
70 }
e0d3bafd
SD		 71};
72
73void cx231xx_add_into_devlist(struct cx231xx *dev)
74{
75 mutex_lock(&cx231xx_devlist_mutex);
76 list_add_tail(&dev->devlist, &cx231xx_devlist);
64fbf444 77 atomic_inc(&dev->devlist_count);
e0d3bafd
SD		 78 mutex_unlock(&cx231xx_devlist_mutex);
79};
80
e0d3bafd 81static LIST_HEAD(cx231xx_extension_devlist);
e0d3bafd
SD		 82
83int cx231xx_register_extension(struct cx231xx_ops *ops)
84{
85 struct cx231xx *dev = NULL;
86
87 mutex_lock(&cx231xx_devlist_mutex);
e0d3bafd 88 list_add_tail(&ops->next, &cx231xx_extension_devlist);
fb1817e4 89 list_for_each_entry(dev, &cx231xx_devlist, devlist) {
a9fac6b1 90 ops->init(dev);
336fea92 91 dev_info(dev->dev, "%s initialized\n", ops->name);
fb1817e4 92 }
e0d3bafd
SD		 93 mutex_unlock(&cx231xx_devlist_mutex);
94 return 0;
95}
96EXPORT_SYMBOL(cx231xx_register_extension);
97
98void cx231xx_unregister_extension(struct cx231xx_ops *ops)
99{
100 struct cx231xx *dev = NULL;
101
102 mutex_lock(&cx231xx_devlist_mutex);
fb1817e4 103 list_for_each_entry(dev, &cx231xx_devlist, devlist) {
a9fac6b1 104 ops->fini(dev);
336fea92 105 dev_info(dev->dev, "%s removed\n", ops->name);
fb1817e4 106 }
e0d3bafd 107
e0d3bafd 108 list_del(&ops->next);
e0d3bafd
SD		 109 mutex_unlock(&cx231xx_devlist_mutex);
110}
84b5dbf3 111EXPORT_SYMBOL(cx231xx_unregister_extension);
e0d3bafd
SD		 112
113void cx231xx_init_extension(struct cx231xx *dev)
114{
115 struct cx231xx_ops *ops = NULL;
116
761f6cf6 117 mutex_lock(&cx231xx_devlist_mutex);
e0d3bafd
SD		 118 if (!list_empty(&cx231xx_extension_devlist)) {
119 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
120 if (ops->init)
121 ops->init(dev);
122 }
123 }
761f6cf6 124 mutex_unlock(&cx231xx_devlist_mutex);
e0d3bafd
SD		 125}
126
127void cx231xx_close_extension(struct cx231xx *dev)
128{
129 struct cx231xx_ops *ops = NULL;
130
761f6cf6 131 mutex_lock(&cx231xx_devlist_mutex);
e0d3bafd
SD		 132 if (!list_empty(&cx231xx_extension_devlist)) {
133 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
134 if (ops->fini)
135 ops->fini(dev);
136 }
137 }
761f6cf6 138 mutex_unlock(&cx231xx_devlist_mutex);
e0d3bafd
SD		 139}
140
b9255176
SD		 141/****************************************************************
142* U S B related functions *
143*****************************************************************/
e0d3bafd 144int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus,
84b5dbf3 145 struct cx231xx_i2c_xfer_data *req_data)
e0d3bafd 146{
84b5dbf3
MCC		 147 int status = 0;
148 struct cx231xx *dev = i2c_bus->dev;
b9255176 149 struct VENDOR_REQUEST_IN ven_req;
84b5dbf3
MCC		 150
151 u8 saddr_len = 0;
152 u8 _i2c_period = 0;
153 u8 _i2c_nostop = 0;
154 u8 _i2c_reserve = 0;
155
7528cd27
MCC		 156 if (dev->state & DEV_DISCONNECTED)
157 return -ENODEV;
158
84b5dbf3
MCC		 159 /* Get the I2C period, nostop and reserve parameters */
160 _i2c_period = i2c_bus->i2c_period;
161 _i2c_nostop = i2c_bus->i2c_nostop;
162 _i2c_reserve = i2c_bus->i2c_reserve;
163
164 saddr_len = req_data->saddr_len;
165
166 /* Set wValue */
9713883b
NMG		 167 ven_req.wValue = (req_data->dev_addr << 9 | _i2c_period << 4 |
168 saddr_len << 2 | _i2c_nostop << 1 | I2C_SYNC |
169 _i2c_reserve << 6);
84b5dbf3
MCC		 170
171 /* set channel number */
b9255176
SD		 172 if (req_data->direction & I2C_M_RD) {
173 /* channel number, for read,spec required channel_num +4 */
174 ven_req.bRequest = i2c_bus->nr + 4;
175 } else
84b5dbf3
MCC		 176 ven_req.bRequest = i2c_bus->nr; /* channel number, */
177
178 /* set index value */
179 switch (saddr_len) {
180 case 0:
181 ven_req.wIndex = 0; /* need check */
182 break;
183 case 1:
184 ven_req.wIndex = (req_data->saddr_dat & 0xff);
185 break;
186 case 2:
187 ven_req.wIndex = req_data->saddr_dat;
188 break;
189 }
190
191 /* set wLength value */
192 ven_req.wLength = req_data->buf_size;
193
194 /* set bData value */
195 ven_req.bData = 0;
196
197 /* set the direction */
198 if (req_data->direction) {
199 ven_req.direction = USB_DIR_IN;
200 memset(req_data->p_buffer, 0x00, ven_req.wLength);
201 } else
202 ven_req.direction = USB_DIR_OUT;
203
204 /* set the buffer for read / write */
205 ven_req.pBuff = req_data->p_buffer;
206
207
208 /* call common vendor command request */
209 status = cx231xx_send_vendor_cmd(dev, &ven_req);
77e97ba2 210 if (status < 0 && !dev->i2c_scan_running) {
336fea92 211 dev_err(dev->dev, "%s: failed with status -%d\n",
ed0e3729 212 __func__, status);
84b5dbf3
MCC		 213 }
214
215 return status;
e0d3bafd 216}
e0d3bafd 217EXPORT_SYMBOL_GPL(cx231xx_send_usb_command);
b9255176 218
24c80b65
MCC		 219/*
220 * Sends/Receives URB control messages, assuring to use a kalloced buffer
221 * for all operations (dev->urb_buf), to avoid using stacked buffers, as
222 * they aren't safe for usage with USB, due to DMA restrictions.
223 * Also implements the debug code for control URB's.
224 */
225static int __usb_control_msg(struct cx231xx *dev, unsigned int pipe,
226 __u8 request, __u8 requesttype, __u16 value, __u16 index,
227 void *data, __u16 size, int timeout)
228{
229 int rc, i;
230
231 if (reg_debug) {
ba1da97e 232 printk(KERN_DEBUG "%s: (pipe 0x%08x): %s: %02x %02x %02x %02x %02x %02x %02x %02x ",
24c80b65
MCC		 233 dev->name,
234 pipe,
235 (requesttype & USB_DIR_IN) ? "IN" : "OUT",
236 requesttype,
237 request,
238 value & 0xff, value >> 8,
239 index & 0xff, index >> 8,
240 size & 0xff, size >> 8);
241 if (!(requesttype & USB_DIR_IN)) {
242 printk(KERN_CONT ">>>");
243 for (i = 0; i < size; i++)
244 printk(KERN_CONT " %02x",
245 ((unsigned char *)data)[i]);
246 }
247 }
248
249 /* Do the real call to usb_control_msg */
250 mutex_lock(&dev->ctrl_urb_lock);
251 if (!(requesttype & USB_DIR_IN) && size)
252 memcpy(dev->urb_buf, data, size);
253 rc = usb_control_msg(dev->udev, pipe, request, requesttype, value,
254 index, dev->urb_buf, size, timeout);
255 if ((requesttype & USB_DIR_IN) && size)
256 memcpy(data, dev->urb_buf, size);
257 mutex_unlock(&dev->ctrl_urb_lock);
258
259 if (reg_debug) {
260 if (unlikely(rc < 0)) {
261 printk(KERN_CONT "FAILED!\n");
262 return rc;
263 }
264
265 if ((requesttype & USB_DIR_IN)) {
266 printk(KERN_CONT "<<<");
267 for (i = 0; i < size; i++)
268 printk(KERN_CONT " %02x",
269 ((unsigned char *)data)[i]);
270 }
271 printk(KERN_CONT "\n");
272 }
273
274 return rc;
275}
276
277
e0d3bafd
SD		 278/*
279 * cx231xx_read_ctrl_reg()
280 * reads data from the usb device specifying bRequest and wValue
281 */
282int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
84b5dbf3 283 char *buf, int len)
e0d3bafd 284{
84b5dbf3 285 u8 val = 0;
e0d3bafd
SD		 286 int ret;
287 int pipe = usb_rcvctrlpipe(dev->udev, 0);
288
289 if (dev->state & DEV_DISCONNECTED)
290 return -ENODEV;
291
292 if (len > URB_MAX_CTRL_SIZE)
293 return -EINVAL;
294
84b5dbf3
MCC		 295 switch (len) {
296 case 1:
297 val = ENABLE_ONE_BYTE;
298 break;
299 case 2:
300 val = ENABLE_TWE_BYTE;
301 break;
302 case 3:
303 val = ENABLE_THREE_BYTE;
304 break;
305 case 4:
306 val = ENABLE_FOUR_BYTE;
307 break;
308 default:
309 val = 0xFF; /* invalid option */
310 }
311
312 if (val == 0xFF)
313 return -EINVAL;
e0d3bafd 314
24c80b65 315 ret = __usb_control_msg(dev, pipe, req,
e0d3bafd 316 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
24c80b65 317 val, reg, buf, len, HZ);
e0d3bafd
SD		 318 return ret;
319}
320
b9255176
SD		 321int cx231xx_send_vendor_cmd(struct cx231xx *dev,
322 struct VENDOR_REQUEST_IN *ven_req)
e0d3bafd 323{
84b5dbf3 324 int ret;
e0d3bafd 325 int pipe = 0;
64fbf444
PB		 326 int unsend_size = 0;
327 u8 *pdata;
e0d3bafd
SD		 328
329 if (dev->state & DEV_DISCONNECTED)
330 return -ENODEV;
331
332 if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
333 return -EINVAL;
334
84b5dbf3
MCC		 335 if (ven_req->direction)
336 pipe = usb_rcvctrlpipe(dev->udev, 0);
337 else
338 pipe = usb_sndctrlpipe(dev->udev, 0);
e0d3bafd 339
24c80b65
MCC		 340 /*
341 * If the cx23102 read more than 4 bytes with i2c bus,
342 * need chop to 4 byte per request
343 */
64fbf444
PB		 344 if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
345 (ven_req->bRequest == 0x5) ||
6c5da803
OK		 346 (ven_req->bRequest == 0x6) ||
347
348 /* Internal Master 3 Bus can send
349 * and receive only 4 bytes per time
350 */
351 (ven_req->bRequest == 0x2))) {
64fbf444
PB		 352 unsend_size = 0;
353 pdata = ven_req->pBuff;
354
355
356 unsend_size = ven_req->wLength;
357
24c80b65 358 /* the first package */
64fbf444
PB		 359 ven_req->wValue = ven_req->wValue & 0xFFFB;
360 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x2;
24c80b65
MCC		 361 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
362 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
64fbf444
PB		 363 ven_req->wValue, ven_req->wIndex, pdata,
364 0x0004, HZ);
365 unsend_size = unsend_size - 4;
64fbf444 366
24c80b65 367 /* the middle package */
64fbf444
PB		 368 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x42;
369 while (unsend_size - 4 > 0) {
370 pdata = pdata + 4;
24c80b65 371 ret = __usb_control_msg(dev, pipe,
64fbf444 372 ven_req->bRequest,
24c80b65 373 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
64fbf444
PB		 374 ven_req->wValue, ven_req->wIndex, pdata,
375 0x0004, HZ);
64fbf444
PB		 376 unsend_size = unsend_size - 4;
377 }
378
24c80b65 379 /* the last package */
64fbf444
PB		 380 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x40;
381 pdata = pdata + 4;
24c80b65
MCC		 382 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
383 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
64fbf444
PB		 384 ven_req->wValue, ven_req->wIndex, pdata,
385 unsend_size, HZ);
64fbf444 386 } else {
24c80b65
MCC		 387 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
388 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
64fbf444 389 ven_req->wValue, ven_req->wIndex,
24c80b65 390 ven_req->pBuff, ven_req->wLength, HZ);
64fbf444 391 }
e0d3bafd
SD		 392
393 return ret;
394}
395
396/*
397 * cx231xx_write_ctrl_reg()
398 * sends data to the usb device, specifying bRequest
399 */
400int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
84b5dbf3 401 int len)
e0d3bafd 402{
84b5dbf3 403 u8 val = 0;
e0d3bafd
SD		 404 int ret;
405 int pipe = usb_sndctrlpipe(dev->udev, 0);
406
407 if (dev->state & DEV_DISCONNECTED)
408 return -ENODEV;
409
410 if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
411 return -EINVAL;
412
84b5dbf3
MCC		 413 switch (len) {
414 case 1:
415 val = ENABLE_ONE_BYTE;
416 break;
417 case 2:
418 val = ENABLE_TWE_BYTE;
419 break;
420 case 3:
421 val = ENABLE_THREE_BYTE;
422 break;
423 case 4:
424 val = ENABLE_FOUR_BYTE;
425 break;
426 default:
427 val = 0xFF; /* invalid option */
428 }
429
430 if (val == 0xFF)
431 return -EINVAL;
e0d3bafd
SD		 432
433 if (reg_debug) {
434 int byte;
435
ba1da97e 436 cx231xx_isocdbg("(pipe 0x%08x): OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
b9255176
SD		 437 pipe,
438 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
439 req, 0, val, reg & 0xff,
440 reg >> 8, len & 0xff, len >> 8);
e0d3bafd
SD		 441
442 for (byte = 0; byte < len; byte++)
443 cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
444 cx231xx_isocdbg("\n");
445 }
446
24c80b65 447 ret = __usb_control_msg(dev, pipe, req,
e0d3bafd 448 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
24c80b65 449 val, reg, buf, len, HZ);
e0d3bafd
SD		 450
451 return ret;
452}
453
b9255176
SD		 454/****************************************************************
455* USB Alternate Setting functions *
456*****************************************************************/
e0d3bafd
SD		 457
458int cx231xx_set_video_alternate(struct cx231xx *dev)
459{
460 int errCode, prev_alt = dev->video_mode.alt;
461 unsigned int min_pkt_size = dev->width * 2 + 4;
84b5dbf3 462 u32 usb_interface_index = 0;
e0d3bafd
SD		 463
464 /* When image size is bigger than a certain value,
465 the frame size should be increased, otherwise, only
466 green screen will be received.
467 */
468 if (dev->width * 2 * dev->height > 720 * 240 * 2)
469 min_pkt_size *= 2;
470
84b5dbf3
MCC		 471 if (dev->width > 360) {
472 /* resolutions: 720,704,640 */
473 dev->video_mode.alt = 3;
474 } else if (dev->width > 180) {
475 /* resolutions: 360,352,320,240 */
476 dev->video_mode.alt = 2;
477 } else if (dev->width > 0) {
478 /* resolutions: 180,176,160,128,88 */
479 dev->video_mode.alt = 1;
480 } else {
481 /* Change to alt0 BULK to release USB bandwidth */
482 dev->video_mode.alt = 0;
483 }
484
64fbf444
PB		 485 if (dev->USE_ISO == 0)
486 dev->video_mode.alt = 0;
487
d5a1754d 488 cx231xx_coredbg("dev->video_mode.alt= %d\n", dev->video_mode.alt);
64fbf444 489
84b5dbf3
MCC		 490 /* Get the correct video interface Index */
491 usb_interface_index =
492 dev->current_pcb_config.hs_config_info[0].interface_info.
493 video_index + 1;
e0d3bafd
SD		 494
495 if (dev->video_mode.alt != prev_alt) {
496 cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
497 min_pkt_size, dev->video_mode.alt);
64fbf444
PB		 498
499 if (dev->video_mode.alt_max_pkt_size != NULL)
500 dev->video_mode.max_pkt_size =
501 dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
e0d3bafd 502 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
84b5dbf3
MCC		 503 dev->video_mode.alt,
504 dev->video_mode.max_pkt_size);
84b5dbf3
MCC		 505 errCode =
506 usb_set_interface(dev->udev, usb_interface_index,
507 dev->video_mode.alt);
e0d3bafd 508 if (errCode < 0) {
336fea92 509 dev_err(dev->dev,
b7085c08 510 "cannot change alt number to %d (error=%i)\n",
ed0e3729 511 dev->video_mode.alt, errCode);
e0d3bafd
SD		 512 return errCode;
513 }
514 }
515 return 0;
516}
517
518int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
519{
84b5dbf3
MCC		 520 int status = 0;
521 u32 usb_interface_index = 0;
522 u32 max_pkt_size = 0;
523
524 switch (index) {
525 case INDEX_TS1:
526 usb_interface_index =
527 dev->current_pcb_config.hs_config_info[0].interface_info.
528 ts1_index + 1;
64fbf444 529 dev->ts1_mode.alt = alt;
84b5dbf3
MCC		 530 if (dev->ts1_mode.alt_max_pkt_size != NULL)
531 max_pkt_size = dev->ts1_mode.max_pkt_size =
532 dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
533 break;
534 case INDEX_TS2:
535 usb_interface_index =
536 dev->current_pcb_config.hs_config_info[0].interface_info.
537 ts2_index + 1;
538 break;
539 case INDEX_AUDIO:
540 usb_interface_index =
541 dev->current_pcb_config.hs_config_info[0].interface_info.
542 audio_index + 1;
543 dev->adev.alt = alt;
544 if (dev->adev.alt_max_pkt_size != NULL)
545 max_pkt_size = dev->adev.max_pkt_size =
546 dev->adev.alt_max_pkt_size[dev->adev.alt];
547 break;
548 case INDEX_VIDEO:
549 usb_interface_index =
550 dev->current_pcb_config.hs_config_info[0].interface_info.
551 video_index + 1;
552 dev->video_mode.alt = alt;
553 if (dev->video_mode.alt_max_pkt_size != NULL)
554 max_pkt_size = dev->video_mode.max_pkt_size =
555 dev->video_mode.alt_max_pkt_size[dev->video_mode.
556 alt];
557 break;
558 case INDEX_VANC:
2f861387
MCC		 559 if (dev->board.no_alt_vanc)
560 return 0;
84b5dbf3
MCC		 561 usb_interface_index =
562 dev->current_pcb_config.hs_config_info[0].interface_info.
563 vanc_index + 1;
564 dev->vbi_mode.alt = alt;
565 if (dev->vbi_mode.alt_max_pkt_size != NULL)
566 max_pkt_size = dev->vbi_mode.max_pkt_size =
567 dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
568 break;
569 case INDEX_HANC:
570 usb_interface_index =
571 dev->current_pcb_config.hs_config_info[0].interface_info.
572 hanc_index + 1;
573 dev->sliced_cc_mode.alt = alt;
574 if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
575 max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
576 dev->sliced_cc_mode.alt_max_pkt_size[dev->
577 sliced_cc_mode.
578 alt];
579 break;
580 default:
581 break;
582 }
583
584 if (alt > 0 && max_pkt_size == 0) {
336fea92 585 dev_err(dev->dev,
b7085c08 586 "can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
ed0e3729 587 usb_interface_index, alt);
64fbf444
PB		 588 /*To workaround error number=-71 on EP0 for videograbber,
589 need add following codes.*/
2f861387 590 if (dev->board.no_alt_vanc)
64fbf444 591 return -1;
84b5dbf3
MCC		 592 }
593
ba1da97e
MCC		 594 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u,Interface = %d\n",
595 alt, max_pkt_size,
d5a1754d 596 usb_interface_index);
84b5dbf3
MCC		 597
598 if (usb_interface_index > 0) {
599 status = usb_set_interface(dev->udev, usb_interface_index, alt);
e0d3bafd 600 if (status < 0) {
336fea92 601 dev_err(dev->dev,
b7085c08 602 "can't change interface %d alt no. to %d (err=%i)\n",
ed0e3729 603 usb_interface_index, alt, status);
e0d3bafd
SD		 604 return status;
605 }
84b5dbf3 606 }
e0d3bafd 607
84b5dbf3 608 return status;
e0d3bafd
SD		 609}
610EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
611
612int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio)
613{
614 int rc = 0;
615
616 if (!gpio)
617 return rc;
618
619 /* Send GPIO reset sequences specified at board entry */
620 while (gpio->sleep >= 0) {
84b5dbf3
MCC		 621 rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val);
622 if (rc < 0)
623 return rc;
e0d3bafd
SD		 624
625 if (gpio->sleep > 0)
626 msleep(gpio->sleep);
627
628 gpio++;
629 }
630 return rc;
631}
632
64fbf444
PB		 633int cx231xx_demod_reset(struct cx231xx *dev)
634{
635
636 u8 status = 0;
637 u8 value[4] = { 0, 0, 0, 0 };
638
639 status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
640 value, 4);
64fbf444 641
d5a1754d
DH		 642 cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
643 value[0], value[1], value[2], value[3]);
644
645 cx231xx_coredbg("Enter cx231xx_demod_reset()\n");
646
69626853
MCC		 647 value[1] = (u8) 0x3;
648 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
649 PWR_CTL_EN, value, 4);
650 msleep(10);
651
652 value[1] = (u8) 0x0;
653 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
654 PWR_CTL_EN, value, 4);
655 msleep(10);
656
657 value[1] = (u8) 0x3;
658 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
659 PWR_CTL_EN, value, 4);
660 msleep(10);
64fbf444
PB		 661
662 status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
663 value, 4);
d5a1754d
DH		 664
665 cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
666 value[0], value[1], value[2], value[3]);
64fbf444
PB		 667
668 return status;
669}
670EXPORT_SYMBOL_GPL(cx231xx_demod_reset);
671int is_fw_load(struct cx231xx *dev)
672{
673 return cx231xx_check_fw(dev);
674}
675EXPORT_SYMBOL_GPL(is_fw_load);
676
e0d3bafd
SD		 677int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
678{
64fbf444
PB		 679 int errCode = 0;
680
e0d3bafd
SD		 681 if (dev->mode == set_mode)
682 return 0;
683
684 if (set_mode == CX231XX_SUSPEND) {
84b5dbf3 685 /* Set the chip in power saving mode */
e0d3bafd
SD		 686 dev->mode = set_mode;
687 }
688
689 /* Resource is locked */
690 if (dev->mode != CX231XX_SUSPEND)
691 return -EINVAL;
692
693 dev->mode = set_mode;
694
64fbf444
PB		 695 if (dev->mode == CX231XX_DIGITAL_MODE)/* Set Digital power mode */ {
696 /* set AGC mode to Digital */
697 switch (dev->model) {
698 case CX231XX_BOARD_CNXT_CARRAERA:
699 case CX231XX_BOARD_CNXT_RDE_250:
700 case CX231XX_BOARD_CNXT_SHELBY:
701 case CX231XX_BOARD_CNXT_RDU_250:
702 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
703 break;
704 case CX231XX_BOARD_CNXT_RDE_253S:
705 case CX231XX_BOARD_CNXT_RDU_253S:
24b923f0 706 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
b88ba619
DH		 707 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
708 break;
1a50fdde 709 case CX231XX_BOARD_HAUPPAUGE_EXETER:
dd2e7dd2 710 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
b88ba619
DH		 711 errCode = cx231xx_set_power_mode(dev,
712 POLARIS_AVMODE_DIGITAL);
64fbf444
PB		 713 break;
714 default:
715 break;
716 }
717 } else/* Set Analog Power mode */ {
718 /* set AGC mode to Analog */
719 switch (dev->model) {
720 case CX231XX_BOARD_CNXT_CARRAERA:
721 case CX231XX_BOARD_CNXT_RDE_250:
722 case CX231XX_BOARD_CNXT_SHELBY:
723 case CX231XX_BOARD_CNXT_RDU_250:
724 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
725 break;
726 case CX231XX_BOARD_CNXT_RDE_253S:
727 case CX231XX_BOARD_CNXT_RDU_253S:
1a50fdde 728 case CX231XX_BOARD_HAUPPAUGE_EXETER:
dd2e7dd2 729 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
9417bc6d 730 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
de8ae0d5
PM		 731 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
732 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
24b923f0 733 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
64fbf444
PB		 734 break;
735 default:
736 break;
737 }
738 }
b9255176 739
dc4af782
MCC		 740 if (errCode < 0) {
741 dev_err(dev->dev, "Failed to set devmode to %s: error: %i",
742 dev->mode == CX231XX_DIGITAL_MODE ? "digital" : "analog",
743 errCode);
744 return errCode;
745 }
746
747 return 0;
e0d3bafd
SD		 748}
749EXPORT_SYMBOL_GPL(cx231xx_set_mode);
750
64fbf444
PB		 751int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
752{
753 int errCode = 0;
20e01b26
DC		 754 int actlen = -1;
755 int ret = -ENOMEM;
64fbf444
PB		 756 u32 *buffer;
757
da983503 758 buffer = kzalloc(4096, GFP_KERNEL);
ed0e3729 759 if (buffer == NULL)
64fbf444 760 return -ENOMEM;
64fbf444
PB		 761 memcpy(&buffer[0], firmware, 4096);
762
763 ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
da983503 764 buffer, 4096, &actlen, 2000);
64fbf444
PB		 765
766 if (ret)
336fea92 767 dev_err(dev->dev,
b7085c08
MCC		 768 "bulk message failed: %d (%d/%d)", ret,
769 size, actlen);
64fbf444
PB		 770 else {
771 errCode = actlen != size ? -1 : 0;
772 }
da983503
HV		 773 kfree(buffer);
774 return errCode;
64fbf444
PB		 775}
776
b9255176
SD		 777/*****************************************************************
778* URB Streaming functions *
779******************************************************************/
e0d3bafd
SD		 780
781/*
782 * IRQ callback, called by URB callback
783 */
64fbf444 784static void cx231xx_isoc_irq_callback(struct urb *urb)
e0d3bafd 785{
84b5dbf3
MCC		 786 struct cx231xx_dmaqueue *dma_q = urb->context;
787 struct cx231xx_video_mode *vmode =
788 container_of(dma_q, struct cx231xx_video_mode, vidq);
789 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
aa53bf0b 790 unsigned long flags;
da983503 791 int i;
e0d3bafd 792
84b5dbf3
MCC		 793 switch (urb->status) {
794 case 0: /* success */
795 case -ETIMEDOUT: /* NAK */
796 break;
797 case -ECONNRESET: /* kill */
798 case -ENOENT:
799 case -ESHUTDOWN:
800 return;
801 default: /* error */
69b17abf 802 cx231xx_isocdbg("urb completion error %d.\n", urb->status);
84b5dbf3 803 break;
e0d3bafd
SD		 804 }
805
806 /* Copy data from URB */
aa53bf0b 807 spin_lock_irqsave(&dev->video_mode.slock, flags);
da983503 808 dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
aa53bf0b 809 spin_unlock_irqrestore(&dev->video_mode.slock, flags);
e0d3bafd
SD		 810
811 /* Reset urb buffers */
812 for (i = 0; i < urb->number_of_packets; i++) {
813 urb->iso_frame_desc[i].status = 0;
814 urb->iso_frame_desc[i].actual_length = 0;
815 }
e0d3bafd
SD		 816
817 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
818 if (urb->status) {
819 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
84b5dbf3 820 urb->status);
e0d3bafd
SD		 821 }
822}
64fbf444
PB		 823/*****************************************************************
824* URB Streaming functions *
825******************************************************************/
826
827/*
828 * IRQ callback, called by URB callback
829 */
830static void cx231xx_bulk_irq_callback(struct urb *urb)
831{
832 struct cx231xx_dmaqueue *dma_q = urb->context;
833 struct cx231xx_video_mode *vmode =
834 container_of(dma_q, struct cx231xx_video_mode, vidq);
835 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
aa53bf0b 836 unsigned long flags;
64fbf444
PB		 837
838 switch (urb->status) {
839 case 0: /* success */
840 case -ETIMEDOUT: /* NAK */
841 break;
842 case -ECONNRESET: /* kill */
843 case -ENOENT:
844 case -ESHUTDOWN:
845 return;
69b17abf
TH		 846 case -EPIPE: /* stall */
847 cx231xx_isocdbg("urb completion error - device is stalled.\n");
848 return;
64fbf444 849 default: /* error */
69b17abf 850 cx231xx_isocdbg("urb completion error %d.\n", urb->status);
64fbf444
PB		 851 break;
852 }
853
854 /* Copy data from URB */
aa53bf0b 855 spin_lock_irqsave(&dev->video_mode.slock, flags);
da983503 856 dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
aa53bf0b 857 spin_unlock_irqrestore(&dev->video_mode.slock, flags);
e0d3bafd 858
64fbf444 859 /* Reset urb buffers */
64fbf444
PB		 860 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
861 if (urb->status) {
862 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
863 urb->status);
864 }
865}
e0d3bafd
SD		 866/*
867 * Stop and Deallocate URBs
868 */
869void cx231xx_uninit_isoc(struct cx231xx *dev)
870{
64fbf444 871 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
e0d3bafd
SD		 872 struct urb *urb;
873 int i;
69b17abf 874 bool broken_pipe = false;
e0d3bafd
SD		 875
876 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
877
878 dev->video_mode.isoc_ctl.nfields = -1;
879 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
880 urb = dev->video_mode.isoc_ctl.urb[i];
881 if (urb) {
84b5dbf3
MCC		 882 if (!irqs_disabled())
883 usb_kill_urb(urb);
884 else
885 usb_unlink_urb(urb);
e0d3bafd
SD		 886
887 if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
997ea58e
DM		 888 usb_free_coherent(dev->udev,
889 urb->transfer_buffer_length,
890 dev->video_mode.isoc_ctl.
891 transfer_buffer[i],
892 urb->transfer_dma);
e0d3bafd 893 }
69b17abf
TH		 894 if (urb->status == -EPIPE) {
895 broken_pipe = true;
896 }
e0d3bafd
SD		 897 usb_free_urb(urb);
898 dev->video_mode.isoc_ctl.urb[i] = NULL;
899 }
900 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
901 }
902
69b17abf
TH		 903 if (broken_pipe) {
904 cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
905 usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
906 }
e0d3bafd
SD		 907 kfree(dev->video_mode.isoc_ctl.urb);
908 kfree(dev->video_mode.isoc_ctl.transfer_buffer);
64fbf444 909 kfree(dma_q->p_left_data);
e0d3bafd
SD		 910
911 dev->video_mode.isoc_ctl.urb = NULL;
912 dev->video_mode.isoc_ctl.transfer_buffer = NULL;
913 dev->video_mode.isoc_ctl.num_bufs = 0;
64fbf444
PB		 914 dma_q->p_left_data = NULL;
915
916 if (dev->mode_tv == 0)
917 cx231xx_capture_start(dev, 0, Raw_Video);
918 else
919 cx231xx_capture_start(dev, 0, TS1_serial_mode);
920
e0d3bafd 921
e0d3bafd
SD		 922}
923EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
924
64fbf444
PB		 925/*
926 * Stop and Deallocate URBs
927 */
928void cx231xx_uninit_bulk(struct cx231xx *dev)
929{
ce3556bd 930 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
64fbf444
PB		 931 struct urb *urb;
932 int i;
69b17abf 933 bool broken_pipe = false;
64fbf444
PB		 934
935 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
936
937 dev->video_mode.bulk_ctl.nfields = -1;
938 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
939 urb = dev->video_mode.bulk_ctl.urb[i];
940 if (urb) {
941 if (!irqs_disabled())
942 usb_kill_urb(urb);
943 else
944 usb_unlink_urb(urb);
945
946 if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
947 usb_free_coherent(dev->udev,
948 urb->transfer_buffer_length,
ce3556bd 949 dev->video_mode.bulk_ctl.
64fbf444
PB		 950 transfer_buffer[i],
951 urb->transfer_dma);
952 }
69b17abf
TH		 953 if (urb->status == -EPIPE) {
954 broken_pipe = true;
955 }
64fbf444
PB		 956 usb_free_urb(urb);
957 dev->video_mode.bulk_ctl.urb[i] = NULL;
958 }
959 dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
960 }
961
69b17abf
TH		 962 if (broken_pipe) {
963 cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
964 usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
965 }
64fbf444
PB		 966 kfree(dev->video_mode.bulk_ctl.urb);
967 kfree(dev->video_mode.bulk_ctl.transfer_buffer);
ce3556bd 968 kfree(dma_q->p_left_data);
64fbf444
PB		 969
970 dev->video_mode.bulk_ctl.urb = NULL;
971 dev->video_mode.bulk_ctl.transfer_buffer = NULL;
972 dev->video_mode.bulk_ctl.num_bufs = 0;
ce3556bd 973 dma_q->p_left_data = NULL;
64fbf444
PB		 974
975 if (dev->mode_tv == 0)
976 cx231xx_capture_start(dev, 0, Raw_Video);
977 else
978 cx231xx_capture_start(dev, 0, TS1_serial_mode);
979
980
981}
982EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
983
e0d3bafd
SD		 984/*
985 * Allocate URBs and start IRQ
986 */
987int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
84b5dbf3 988 int num_bufs, int max_pkt_size,
b9255176 989 int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
e0d3bafd
SD		 990{
991 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
992 int i;
993 int sb_size, pipe;
994 struct urb *urb;
995 int j, k;
996 int rc;
997
e0d3bafd
SD		 998 /* De-allocates all pending stuff */
999 cx231xx_uninit_isoc(dev);
1000
64fbf444 1001 dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
ed0e3729 1002 if (dma_q->p_left_data == NULL)
64fbf444 1003 return -ENOMEM;
64fbf444 1004
e0d3bafd
SD		 1005 dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
1006 dev->video_mode.isoc_ctl.num_bufs = num_bufs;
84b5dbf3
MCC		 1007 dma_q->pos = 0;
1008 dma_q->is_partial_line = 0;
1009 dma_q->last_sav = 0;
1010 dma_q->current_field = -1;
1011 dma_q->field1_done = 0;
1012 dma_q->lines_per_field = dev->height / 2;
1013 dma_q->bytes_left_in_line = dev->width << 1;
1014 dma_q->lines_completed = 0;
64fbf444
PB		 1015 dma_q->mpeg_buffer_done = 0;
1016 dma_q->left_data_count = 0;
1017 dma_q->mpeg_buffer_completed = 0;
1018 dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
1019 dma_q->ps_head[0] = 0x00;
1020 dma_q->ps_head[1] = 0x00;
1021 dma_q->ps_head[2] = 0x01;
1022 dma_q->ps_head[3] = 0xBA;
84b5dbf3
MCC		 1023 for (i = 0; i < 8; i++)
1024 dma_q->partial_buf[i] = 0;
1025
1026 dev->video_mode.isoc_ctl.urb =
6396bb22 1027 kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
e0d3bafd 1028 if (!dev->video_mode.isoc_ctl.urb) {
336fea92 1029 dev_err(dev->dev,
b7085c08 1030 "cannot alloc memory for usb buffers\n");
e0d3bafd
SD		 1031 return -ENOMEM;
1032 }
1033
84b5dbf3 1034 dev->video_mode.isoc_ctl.transfer_buffer =
6396bb22 1035 kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
e0d3bafd 1036 if (!dev->video_mode.isoc_ctl.transfer_buffer) {
336fea92 1037 dev_err(dev->dev,
b7085c08 1038 "cannot allocate memory for usbtransfer\n");
e0d3bafd
SD		 1039 kfree(dev->video_mode.isoc_ctl.urb);
1040 return -ENOMEM;
1041 }
1042
1043 dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1044 dev->video_mode.isoc_ctl.buf = NULL;
1045
1046 sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1047
64fbf444
PB		 1048 if (dev->mode_tv == 1)
1049 dev->video_mode.end_point_addr = 0x81;
1050 else
1051 dev->video_mode.end_point_addr = 0x84;
1052
1053
e0d3bafd
SD		 1054 /* allocate urbs and transfer buffers */
1055 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1056 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1057 if (!urb) {
e0d3bafd
SD		 1058 cx231xx_uninit_isoc(dev);
1059 return -ENOMEM;
1060 }
1061 dev->video_mode.isoc_ctl.urb[i] = urb;
1062
84b5dbf3 1063 dev->video_mode.isoc_ctl.transfer_buffer[i] =
997ea58e
DM		 1064 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1065 &urb->transfer_dma);
e0d3bafd 1066 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
336fea92 1067 dev_err(dev->dev,
b7085c08 1068 "unable to allocate %i bytes for transfer buffer %i%s\n",
ed0e3729
MCC		 1069 sb_size, i,
1070 in_interrupt() ? " while in int" : "");
e0d3bafd
SD		 1071 cx231xx_uninit_isoc(dev);
1072 return -ENOMEM;
1073 }
1074 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1075
84b5dbf3
MCC		 1076 pipe =
1077 usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
e0d3bafd
SD		 1078
1079 usb_fill_int_urb(urb, dev->udev, pipe,
84b5dbf3 1080 dev->video_mode.isoc_ctl.transfer_buffer[i],
64fbf444 1081 sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
e0d3bafd
SD		 1082
1083 urb->number_of_packets = max_packets;
7a6f6c29 1084 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
e0d3bafd
SD		 1085
1086 k = 0;
1087 for (j = 0; j < max_packets; j++) {
1088 urb->iso_frame_desc[j].offset = k;
1089 urb->iso_frame_desc[j].length =
84b5dbf3 1090 dev->video_mode.isoc_ctl.max_pkt_size;
e0d3bafd
SD		 1091 k += dev->video_mode.isoc_ctl.max_pkt_size;
1092 }
1093 }
1094
1095 init_waitqueue_head(&dma_q->wq);
1096
e0d3bafd
SD		 1097 /* submit urbs and enables IRQ */
1098 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
84b5dbf3
MCC		 1099 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1100 GFP_ATOMIC);
e0d3bafd 1101 if (rc) {
336fea92 1102 dev_err(dev->dev,
b7085c08 1103 "submit of urb %i failed (error=%i)\n", i,
ed0e3729 1104 rc);
e0d3bafd
SD		 1105 cx231xx_uninit_isoc(dev);
1106 return rc;
1107 }
1108 }
1109
64fbf444
PB		 1110 if (dev->mode_tv == 0)
1111 cx231xx_capture_start(dev, 1, Raw_Video);
1112 else
1113 cx231xx_capture_start(dev, 1, TS1_serial_mode);
e0d3bafd
SD		 1114
1115 return 0;
1116}
1117EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1118
64fbf444
PB		 1119/*
1120 * Allocate URBs and start IRQ
1121 */
1122int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1123 int num_bufs, int max_pkt_size,
1124 int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1125{
1126 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1127 int i;
1128 int sb_size, pipe;
1129 struct urb *urb;
1130 int rc;
1131
1132 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1133
d5a1754d
DH		 1134 cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1135
64fbf444
PB		 1136 video_mux(dev, dev->video_input);
1137
1138 /* De-allocates all pending stuff */
1139 cx231xx_uninit_bulk(dev);
1140
1141 dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1142 dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1143 dma_q->pos = 0;
1144 dma_q->is_partial_line = 0;
1145 dma_q->last_sav = 0;
1146 dma_q->current_field = -1;
1147 dma_q->field1_done = 0;
1148 dma_q->lines_per_field = dev->height / 2;
1149 dma_q->bytes_left_in_line = dev->width << 1;
1150 dma_q->lines_completed = 0;
1151 dma_q->mpeg_buffer_done = 0;
1152 dma_q->left_data_count = 0;
1153 dma_q->mpeg_buffer_completed = 0;
1154 dma_q->ps_head[0] = 0x00;
1155 dma_q->ps_head[1] = 0x00;
1156 dma_q->ps_head[2] = 0x01;
1157 dma_q->ps_head[3] = 0xBA;
1158 for (i = 0; i < 8; i++)
1159 dma_q->partial_buf[i] = 0;
1160
1161 dev->video_mode.bulk_ctl.urb =
6396bb22 1162 kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
64fbf444 1163 if (!dev->video_mode.bulk_ctl.urb) {
336fea92 1164 dev_err(dev->dev,
b7085c08 1165 "cannot alloc memory for usb buffers\n");
64fbf444
PB		 1166 return -ENOMEM;
1167 }
1168
1169 dev->video_mode.bulk_ctl.transfer_buffer =
6396bb22 1170 kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
64fbf444 1171 if (!dev->video_mode.bulk_ctl.transfer_buffer) {
336fea92 1172 dev_err(dev->dev,
b7085c08 1173 "cannot allocate memory for usbtransfer\n");
64fbf444
PB		 1174 kfree(dev->video_mode.bulk_ctl.urb);
1175 return -ENOMEM;
1176 }
1177
1178 dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1179 dev->video_mode.bulk_ctl.buf = NULL;
1180
1181 sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1182
1183 if (dev->mode_tv == 1)
1184 dev->video_mode.end_point_addr = 0x81;
1185 else
1186 dev->video_mode.end_point_addr = 0x84;
1187
1188
1189 /* allocate urbs and transfer buffers */
1190 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1191 urb = usb_alloc_urb(0, GFP_KERNEL);
1192 if (!urb) {
64fbf444
PB		 1193 cx231xx_uninit_bulk(dev);
1194 return -ENOMEM;
1195 }
1196 dev->video_mode.bulk_ctl.urb[i] = urb;
7a6f6c29 1197 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
64fbf444
PB		 1198
1199 dev->video_mode.bulk_ctl.transfer_buffer[i] =
1200 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1201 &urb->transfer_dma);
1202 if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
336fea92 1203 dev_err(dev->dev,
b7085c08 1204 "unable to allocate %i bytes for transfer buffer %i%s\n",
ed0e3729
MCC		 1205 sb_size, i,
1206 in_interrupt() ? " while in int" : "");
64fbf444
PB		 1207 cx231xx_uninit_bulk(dev);
1208 return -ENOMEM;
1209 }
1210 memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1211
1212 pipe = usb_rcvbulkpipe(dev->udev,
1213 dev->video_mode.end_point_addr);
1214 usb_fill_bulk_urb(urb, dev->udev, pipe,
1215 dev->video_mode.bulk_ctl.transfer_buffer[i],
1216 sb_size, cx231xx_bulk_irq_callback, dma_q);
1217 }
1218
ce3556bd
TH		 1219 /* clear halt */
1220 rc = usb_clear_halt(dev->udev, dev->video_mode.bulk_ctl.urb[0]->pipe);
1221 if (rc < 0) {
1222 dev_err(dev->dev,
1223 "failed to clear USB bulk endpoint stall/halt condition (error=%i)\n",
1224 rc);
1225 cx231xx_uninit_bulk(dev);
1226 return rc;
1227 }
1228
64fbf444
PB		 1229 init_waitqueue_head(&dma_q->wq);
1230
1231 /* submit urbs and enables IRQ */
1232 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1233 rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1234 GFP_ATOMIC);
1235 if (rc) {
336fea92 1236 dev_err(dev->dev,
b7085c08 1237 "submit of urb %i failed (error=%i)\n", i, rc);
64fbf444
PB		 1238 cx231xx_uninit_bulk(dev);
1239 return rc;
1240 }
1241 }
1242
1243 if (dev->mode_tv == 0)
1244 cx231xx_capture_start(dev, 1, Raw_Video);
1245 else
1246 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1247
1248 return 0;
1249}
1250EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1251void cx231xx_stop_TS1(struct cx231xx *dev)
1252{
64fbf444
PB		 1253 u8 val[4] = { 0, 0, 0, 0 };
1254
da983503
HV		 1255 val[0] = 0x00;
1256 val[1] = 0x03;
1257 val[2] = 0x00;
1258 val[3] = 0x00;
1259 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1260 TS_MODE_REG, val, 4);
1261
1262 val[0] = 0x00;
1263 val[1] = 0x70;
1264 val[2] = 0x04;
1265 val[3] = 0x00;
1266 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1267 TS1_CFG_REG, val, 4);
64fbf444
PB		 1268}
1269/* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
1270void cx231xx_start_TS1(struct cx231xx *dev)
1271{
64fbf444
PB		 1272 u8 val[4] = { 0, 0, 0, 0 };
1273
da983503
HV		 1274 val[0] = 0x03;
1275 val[1] = 0x03;
1276 val[2] = 0x00;
1277 val[3] = 0x00;
1278 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1279 TS_MODE_REG, val, 4);
1280
1281 val[0] = 0x04;
1282 val[1] = 0xA3;
1283 val[2] = 0x3B;
1284 val[3] = 0x00;
1285 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1286 TS1_CFG_REG, val, 4);
64fbf444
PB		 1287}
1288/* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
b9255176
SD		 1289/*****************************************************************
1290* Device Init/UnInit functions *
1291******************************************************************/
e0d3bafd
SD		 1292int cx231xx_dev_init(struct cx231xx *dev)
1293{
84b5dbf3 1294 int errCode = 0;
e0d3bafd 1295
84b5dbf3 1296 /* Initialize I2C bus */
e0d3bafd
SD		 1297
1298 /* External Master 1 Bus */
1299 dev->i2c_bus[0].nr = 0;
1300 dev->i2c_bus[0].dev = dev;
1a50fdde 1301 dev->i2c_bus[0].i2c_period = I2C_SPEED_100K; /* 100 KHz */
84b5dbf3
MCC		 1302 dev->i2c_bus[0].i2c_nostop = 0;
1303 dev->i2c_bus[0].i2c_reserve = 0;
8e2803ff 1304 dev->i2c_bus[0].i2c_rc = -ENODEV;
e0d3bafd
SD		 1305
1306 /* External Master 2 Bus */
1307 dev->i2c_bus[1].nr = 1;
1308 dev->i2c_bus[1].dev = dev;
1a50fdde 1309 dev->i2c_bus[1].i2c_period = I2C_SPEED_100K; /* 100 KHz */
84b5dbf3
MCC		 1310 dev->i2c_bus[1].i2c_nostop = 0;
1311 dev->i2c_bus[1].i2c_reserve = 0;
8e2803ff 1312 dev->i2c_bus[1].i2c_rc = -ENODEV;
e0d3bafd
SD		 1313
1314 /* Internal Master 3 Bus */
1315 dev->i2c_bus[2].nr = 2;
1316 dev->i2c_bus[2].dev = dev;
9ab66912 1317 dev->i2c_bus[2].i2c_period = I2C_SPEED_100K; /* 100kHz */
84b5dbf3
MCC		 1318 dev->i2c_bus[2].i2c_nostop = 0;
1319 dev->i2c_bus[2].i2c_reserve = 0;
8e2803ff 1320 dev->i2c_bus[2].i2c_rc = -ENODEV;
e0d3bafd 1321
84b5dbf3 1322 /* register I2C buses */
461af077
MCC		 1323 errCode = cx231xx_i2c_register(&dev->i2c_bus[0]);
1324 if (errCode < 0)
1325 return errCode;
1326 errCode = cx231xx_i2c_register(&dev->i2c_bus[1]);
1327 if (errCode < 0)
1328 return errCode;
1329 errCode = cx231xx_i2c_register(&dev->i2c_bus[2]);
1330 if (errCode < 0)
1331 return errCode;
e0d3bafd 1332
05e0dfd0 1333 errCode = cx231xx_i2c_mux_create(dev);
461af077
MCC		 1334 if (errCode < 0) {
1335 dev_err(dev->dev,
1336 "%s: Failed to create I2C mux\n", __func__);
1337 return errCode;
1338 }
1339 errCode = cx231xx_i2c_mux_register(dev, 0);
1340 if (errCode < 0)
1341 return errCode;
1342
1343 errCode = cx231xx_i2c_mux_register(dev, 1);
05e0dfd0
PR		 1344 if (errCode < 0)
1345 return errCode;
15c212dd 1346
e4de03f2
MS		 1347 /* scan the real bus segments in the order of physical port numbers */
1348 cx231xx_do_i2c_scan(dev, I2C_0);
1349 cx231xx_do_i2c_scan(dev, I2C_1_MUX_1);
1350 cx231xx_do_i2c_scan(dev, I2C_2);
1351 cx231xx_do_i2c_scan(dev, I2C_1_MUX_3);
1352
84b5dbf3 1353 /* init hardware */
b9255176 1354 /* Note : with out calling set power mode function,
ecc67d10 1355 afe can not be set up correctly */
2f861387 1356 if (dev->board.external_av) {
64fbf444
PB		 1357 errCode = cx231xx_set_power_mode(dev,
1358 POLARIS_AVMODE_ENXTERNAL_AV);
1359 if (errCode < 0) {
336fea92 1360 dev_err(dev->dev,
b7085c08 1361 "%s: Failed to set Power - errCode [%d]!\n",
ed0e3729 1362 __func__, errCode);
64fbf444
PB		 1363 return errCode;
1364 }
1365 } else {
1366 errCode = cx231xx_set_power_mode(dev,
1367 POLARIS_AVMODE_ANALOGT_TV);
1368 if (errCode < 0) {
336fea92 1369 dev_err(dev->dev,
b7085c08 1370 "%s: Failed to set Power - errCode [%d]!\n",
ed0e3729 1371 __func__, errCode);
64fbf444
PB		 1372 return errCode;
1373 }
e0d3bafd
SD		 1374 }
1375
2f861387
MCC		 1376 /* reset the Tuner, if it is a Xceive tuner */
1377 if ((dev->board.tuner_type == TUNER_XC5000) ||
1378 (dev->board.tuner_type == TUNER_XC2028))
64fbf444
PB		 1379 cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1380
84b5dbf3 1381 /* initialize Colibri block */
ecc67d10 1382 errCode = cx231xx_afe_init_super_block(dev, 0x23c);
e0d3bafd 1383 if (errCode < 0) {
336fea92 1384 dev_err(dev->dev,
b7085c08 1385 "%s: cx231xx_afe init super block - errCode [%d]!\n",
ed0e3729 1386 __func__, errCode);
e0d3bafd
SD		 1387 return errCode;
1388 }
ecc67d10 1389 errCode = cx231xx_afe_init_channels(dev);
84b5dbf3 1390 if (errCode < 0) {
336fea92 1391 dev_err(dev->dev,
b7085c08 1392 "%s: cx231xx_afe init channels - errCode [%d]!\n",
ed0e3729 1393 __func__, errCode);
e0d3bafd
SD		 1394 return errCode;
1395 }
1396
84b5dbf3
MCC		 1397 /* Set DIF in By pass mode */
1398 errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1399 if (errCode < 0) {
336fea92 1400 dev_err(dev->dev,
b7085c08 1401 "%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
ed0e3729 1402 __func__, errCode);
e0d3bafd
SD		 1403 return errCode;
1404 }
1405
ecc67d10
SD		 1406 /* I2S block related functions */
1407 errCode = cx231xx_i2s_blk_initialize(dev);
84b5dbf3 1408 if (errCode < 0) {
336fea92 1409 dev_err(dev->dev,
b7085c08 1410 "%s: cx231xx_i2s block initialize - errCode [%d]!\n",
ed0e3729 1411 __func__, errCode);
e0d3bafd
SD		 1412 return errCode;
1413 }
1414
84b5dbf3
MCC		 1415 /* init control pins */
1416 errCode = cx231xx_init_ctrl_pin_status(dev);
1417 if (errCode < 0) {
336fea92 1418 dev_err(dev->dev,
b7085c08 1419 "%s: cx231xx_init ctrl pins - errCode [%d]!\n",
ed0e3729 1420 __func__, errCode);
e0d3bafd
SD		 1421 return errCode;
1422 }
1423
84b5dbf3 1424 /* set AGC mode to Analog */
64fbf444
PB		 1425 switch (dev->model) {
1426 case CX231XX_BOARD_CNXT_CARRAERA:
1427 case CX231XX_BOARD_CNXT_RDE_250:
1428 case CX231XX_BOARD_CNXT_SHELBY:
1429 case CX231XX_BOARD_CNXT_RDU_250:
84b5dbf3 1430 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
64fbf444
PB		 1431 break;
1432 case CX231XX_BOARD_CNXT_RDE_253S:
1433 case CX231XX_BOARD_CNXT_RDU_253S:
1a50fdde 1434 case CX231XX_BOARD_HAUPPAUGE_EXETER:
dd2e7dd2 1435 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
9417bc6d 1436 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
de8ae0d5
PM		 1437 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
1438 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
64fbf444
PB		 1439 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1440 break;
1441 default:
1442 break;
1443 }
84b5dbf3 1444 if (errCode < 0) {
336fea92 1445 dev_err(dev->dev,
b7085c08 1446 "%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
ed0e3729 1447 __func__, errCode);
e0d3bafd
SD		 1448 return errCode;
1449 }
1450
84b5dbf3
MCC		 1451 /* set all alternate settings to zero initially */
1452 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1453 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1454 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1455 if (dev->board.has_dvb)
1456 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
e0d3bafd 1457
660acd54 1458 errCode = 0;
e0d3bafd
SD		 1459 return errCode;
1460}
1461EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1462
1463void cx231xx_dev_uninit(struct cx231xx *dev)
1464{
84b5dbf3 1465 /* Un Initialize I2C bus */
05e0dfd0 1466 cx231xx_i2c_mux_unregister(dev);
e0d3bafd
SD		 1467 cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1468 cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1469 cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1470}
84b5dbf3 1471EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
e0d3bafd 1472
b9255176
SD		 1473/*****************************************************************
1474* G P I O related functions *
1475******************************************************************/
64fbf444 1476int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
84b5dbf3 1477 u8 len, u8 request, u8 direction)
e0d3bafd 1478{
84b5dbf3 1479 int status = 0;
b9255176 1480 struct VENDOR_REQUEST_IN ven_req;
84b5dbf3
MCC		 1481
1482 /* Set wValue */
1483 ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1484
1485 /* set request */
1486 if (!request) {
1487 if (direction)
7adc7998 1488 ven_req.bRequest = VRT_GET_GPIO; /* 0x9 gpio */
84b5dbf3 1489 else
7adc7998 1490 ven_req.bRequest = VRT_SET_GPIO; /* 0x8 gpio */
84b5dbf3
MCC		 1491 } else {
1492 if (direction)
7adc7998 1493 ven_req.bRequest = VRT_GET_GPIE; /* 0xb gpie */
84b5dbf3 1494 else
7adc7998 1495 ven_req.bRequest = VRT_SET_GPIE; /* 0xa gpie */
84b5dbf3 1496 }
e0d3bafd 1497
84b5dbf3
MCC		 1498 /* set index value */
1499 ven_req.wIndex = (u16) (gpio_bit & 0xffff);
e0d3bafd 1500
84b5dbf3
MCC		 1501 /* set wLength value */
1502 ven_req.wLength = len;
e0d3bafd 1503
84b5dbf3
MCC		 1504 /* set bData value */
1505 ven_req.bData = 0;
e0d3bafd 1506
84b5dbf3
MCC		 1507 /* set the buffer for read / write */
1508 ven_req.pBuff = gpio_val;
1509
1510 /* set the direction */
1511 if (direction) {
1512 ven_req.direction = USB_DIR_IN;
1513 memset(ven_req.pBuff, 0x00, ven_req.wLength);
1514 } else
1515 ven_req.direction = USB_DIR_OUT;
1516
1517
1518 /* call common vendor command request */
1519 status = cx231xx_send_vendor_cmd(dev, &ven_req);
1520 if (status < 0) {
336fea92 1521 dev_err(dev->dev, "%s: failed with status -%d\n",
ed0e3729 1522 __func__, status);
84b5dbf3 1523 }
e0d3bafd 1524
84b5dbf3 1525 return status;
e0d3bafd 1526}
e0d3bafd
SD		 1527EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1528
b9255176
SD		 1529/*****************************************************************
1530 * C O N T R O L - Register R E A D / W R I T E functions *
1531 *****************************************************************/
e0d3bafd
SD		 1532int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1533{
84b5dbf3
MCC		 1534 u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1535 u32 tmp = 0;
1536 int status = 0;
e0d3bafd 1537
84b5dbf3
MCC		 1538 status =
1539 cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1540 if (status < 0)
1541 return status;
e0d3bafd 1542
3f9280a8 1543 tmp = le32_to_cpu(*((__le32 *) value));
84b5dbf3 1544 tmp |= mode;
e0d3bafd 1545
84b5dbf3
MCC		 1546 value[0] = (u8) tmp;
1547 value[1] = (u8) (tmp >> 8);
1548 value[2] = (u8) (tmp >> 16);
1549 value[3] = (u8) (tmp >> 24);
e0d3bafd 1550
84b5dbf3
MCC		 1551 status =
1552 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
e0d3bafd 1553
84b5dbf3 1554 return status;
e0d3bafd
SD		 1555}
1556
b9255176
SD		 1557/*****************************************************************
1558 * I 2 C Internal C O N T R O L functions *
1559 *****************************************************************/
64fbf444
PB		 1560int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1561 u8 saddr_len, u32 *data, u8 data_len, int master)
1562{
1563 int status = 0;
1564 struct cx231xx_i2c_xfer_data req_data;
1565 u8 value[64] = "0";
1566
1567 if (saddr_len == 0)
1568 saddr = 0;
fe041646 1569 else if (saddr_len == 1)
64fbf444
PB		 1570 saddr &= 0xff;
1571
1572 /* prepare xfer_data struct */
1573 req_data.dev_addr = dev_addr >> 1;
1574 req_data.direction = I2C_M_RD;
1575 req_data.saddr_len = saddr_len;
1576 req_data.saddr_dat = saddr;
1577 req_data.buf_size = data_len;
1578 req_data.p_buffer = (u8 *) value;
1579
1580 /* usb send command */
1581 if (master == 0)
1582 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1583 &req_data);
1584 else if (master == 1)
1585 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1586 &req_data);
1587 else if (master == 2)
1588 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1589 &req_data);
1590
1591 if (status >= 0) {
1592 /* Copy the data read back to main buffer */
1593 if (data_len == 1)
1594 *data = value[0];
1595 else if (data_len == 4)
1596 *data =
1597 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1598 << 24;
1599 else if (data_len > 4)
1600 *data = value[saddr];
1601 }
1602
1603 return status;
1604}
1605
1606int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1607 u8 saddr_len, u32 data, u8 data_len, int master)
1608{
1609 int status = 0;
1610 u8 value[4] = { 0, 0, 0, 0 };
1611 struct cx231xx_i2c_xfer_data req_data;
1612
1613 value[0] = (u8) data;
1614 value[1] = (u8) (data >> 8);
1615 value[2] = (u8) (data >> 16);
1616 value[3] = (u8) (data >> 24);
1617
1618 if (saddr_len == 0)
1619 saddr = 0;
fe041646 1620 else if (saddr_len == 1)
64fbf444
PB		 1621 saddr &= 0xff;
1622
1623 /* prepare xfer_data struct */
1624 req_data.dev_addr = dev_addr >> 1;
1625 req_data.direction = 0;
1626 req_data.saddr_len = saddr_len;
1627 req_data.saddr_dat = saddr;
1628 req_data.buf_size = data_len;
1629 req_data.p_buffer = value;
1630
1631 /* usb send command */
1632 if (master == 0)
1633 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1634 &req_data);
1635 else if (master == 1)
1636 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1637 &req_data);
1638 else if (master == 2)
1639 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1640 &req_data);
1641
1642 return status;
1643}
1644
e0d3bafd 1645int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
b9255176 1646 u8 saddr_len, u32 *data, u8 data_len)
e0d3bafd 1647{
84b5dbf3
MCC		 1648 int status = 0;
1649 struct cx231xx_i2c_xfer_data req_data;
1650 u8 value[4] = { 0, 0, 0, 0 };
1651
1652 if (saddr_len == 0)
1653 saddr = 0;
fe041646 1654 else if (saddr_len == 1)
84b5dbf3
MCC		 1655 saddr &= 0xff;
1656
1657 /* prepare xfer_data struct */
1658 req_data.dev_addr = dev_addr >> 1;
1659 req_data.direction = I2C_M_RD;
1660 req_data.saddr_len = saddr_len;
1661 req_data.saddr_dat = saddr;
1662 req_data.buf_size = data_len;
1663 req_data.p_buffer = (u8 *) value;
1664
1665 /* usb send command */
1666 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1667
1668 if (status >= 0) {
1669 /* Copy the data read back to main buffer */
1670 if (data_len == 1)
1671 *data = value[0];
1672 else
1673 *data =
1674 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1675 << 24;
1676 }
1677
1678 return status;
e0d3bafd
SD		 1679}
1680
1681int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
84b5dbf3 1682 u8 saddr_len, u32 data, u8 data_len)
e0d3bafd 1683{
84b5dbf3
MCC		 1684 int status = 0;
1685 u8 value[4] = { 0, 0, 0, 0 };
1686 struct cx231xx_i2c_xfer_data req_data;
1687
1688 value[0] = (u8) data;
1689 value[1] = (u8) (data >> 8);
1690 value[2] = (u8) (data >> 16);
1691 value[3] = (u8) (data >> 24);
1692
1693 if (saddr_len == 0)
1694 saddr = 0;
fe041646 1695 else if (saddr_len == 1)
84b5dbf3
MCC		 1696 saddr &= 0xff;
1697
1698 /* prepare xfer_data struct */
1699 req_data.dev_addr = dev_addr >> 1;
1700 req_data.direction = 0;
1701 req_data.saddr_len = saddr_len;
1702 req_data.saddr_dat = saddr;
1703 req_data.buf_size = data_len;
1704 req_data.p_buffer = value;
1705
1706 /* usb send command */
1707 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1708
1709 return status;
e0d3bafd
SD		 1710}
1711
84b5dbf3
MCC		 1712int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1713 u16 register_address, u8 bit_start, u8 bit_end,
1714 u32 value)
e0d3bafd 1715{
84b5dbf3
MCC		 1716 int status = 0;
1717 u32 tmp;
1718 u32 mask = 0;
1719 int i;
1720
b9255176 1721 if (bit_start > (size - 1) || bit_end > (size - 1))
84b5dbf3 1722 return -1;
e0d3bafd 1723
84b5dbf3
MCC		 1724 if (size == 8) {
1725 status =
1726 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1727 &tmp, 1);
1728 } else {
1729 status =
1730 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1731 &tmp, 4);
1732 }
e0d3bafd 1733
b9255176 1734 if (status < 0)
84b5dbf3 1735 return status;
84b5dbf3
MCC		 1736
1737 mask = 1 << bit_end;
b9255176 1738 for (i = bit_end; i > bit_start && i > 0; i--)
84b5dbf3 1739 mask = mask + (1 << (i - 1));
84b5dbf3
MCC		 1740
1741 value <<= bit_start;
1742
1743 if (size == 8) {
1744 tmp &= ~mask;
1745 tmp |= value;
1746 tmp &= 0xff;
1747 status =
1748 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1749 tmp, 1);
1750 } else {
1751 tmp &= ~mask;
1752 tmp |= value;
1753 status =
1754 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1755 tmp, 4);
1756 }
1757
1758 return status;
1759}
e0d3bafd
SD		 1760
1761int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
84b5dbf3 1762 u16 saddr, u32 mask, u32 value)
e0d3bafd 1763{
84b5dbf3
MCC		 1764 u32 temp;
1765 int status = 0;
e0d3bafd 1766
84b5dbf3 1767 status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
e0d3bafd 1768
84b5dbf3
MCC		 1769 if (status < 0)
1770 return status;
e0d3bafd 1771
84b5dbf3
MCC		 1772 temp &= ~mask;
1773 temp |= value;
e0d3bafd 1774
84b5dbf3 1775 status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
e0d3bafd 1776
84b5dbf3 1777 return status;
e0d3bafd
SD		 1778}
1779
1780u32 cx231xx_set_field(u32 field_mask, u32 data)
1781{
84b5dbf3 1782 u32 temp;
e0d3bafd 1783
b9255176 1784 for (temp = field_mask; (temp & 1) == 0; temp >>= 1)
84b5dbf3 1785 data <<= 1;
e0d3bafd 1786
84b5dbf3 1787 return data;
e0d3bafd 1788}
Linux 6.x block layer and io_uring tree(s)