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-rw-r--r--drivers/media/video/saa711x.c593
1 files changed, 593 insertions, 0 deletions
diff --git a/drivers/media/video/saa711x.c b/drivers/media/video/saa711x.c
new file mode 100644
index 000000000000..9aa8827de2c3
--- /dev/null
+++ b/drivers/media/video/saa711x.c
@@ -0,0 +1,593 @@
1/*
2 * saa711x - Philips SAA711x video decoder driver version 0.0.1
3 *
4 * To do: Now, it handles only saa7113/7114. Should be improved to
5 * handle all Philips saa711x devices.
6 *
7 * Based on saa7113 driver from Dave Perks <dperks@ibm.net>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 */
23
24#include <linux/module.h>
25#include <linux/init.h>
26#include <linux/delay.h>
27#include <linux/errno.h>
28#include <linux/fs.h>
29#include <linux/kernel.h>
30#include <linux/major.h>
31#include <linux/slab.h>
32#include <linux/mm.h>
33#include <linux/pci.h>
34#include <linux/signal.h>
35#include <asm/io.h>
36#include <asm/pgtable.h>
37#include <asm/page.h>
38#include <linux/sched.h>
39#include <asm/segment.h>
40#include <linux/types.h>
41#include <asm/uaccess.h>
42#include <linux/videodev.h>
43
44MODULE_DESCRIPTION("Philips SAA711x video decoder driver");
45MODULE_AUTHOR("Dave Perks, Jose Ignacio Gijon, Joerg Heckenbach, Mark McClelland, Dwaine Garden");
46MODULE_LICENSE("GPL");
47
48#include <linux/i2c.h>
49#include <linux/i2c-dev.h>
50
51#define I2C_NAME(s) (s)->name
52
53#include <linux/video_decoder.h>
54
55static int debug = 0;
56MODULE_PARM(debug, "i");
57MODULE_PARM_DESC(debug, " Set the default Debug level. Default: 0 (Off) - (0-1)");
58
59
60#define dprintk(num, format, args...) \
61 do { \
62 if (debug >= num) \
63 printk(format , ##args); \
64 } while (0)
65
66/* ----------------------------------------------------------------------- */
67
68struct saa711x {
69 unsigned char reg[32];
70
71 int norm;
72 int input;
73 int enable;
74 int bright;
75 int contrast;
76 int hue;
77 int sat;
78};
79
80#define I2C_SAA7113 0x4A
81#define I2C_SAA7114 0x42
82
83/* ----------------------------------------------------------------------- */
84
85static inline int
86saa711x_write (struct i2c_client *client,
87 u8 reg,
88 u8 value)
89{
90 struct saa711x *decoder = i2c_get_clientdata(client);
91
92 decoder->reg[reg] = value;
93 return i2c_smbus_write_byte_data(client, reg, value);
94}
95
96static int
97saa711x_write_block (struct i2c_client *client,
98 const u8 *data,
99 unsigned int len)
100{
101 int ret = -1;
102 u8 reg;
103
104 /* the saa711x has an autoincrement function, use it if
105 * the adapter understands raw I2C */
106 if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
107 /* do raw I2C, not smbus compatible */
108 struct saa711x *decoder = i2c_get_clientdata(client);
109 struct i2c_msg msg;
110 u8 block_data[32];
111
112 msg.addr = client->addr;
113 msg.flags = 0;
114 while (len >= 2) {
115 msg.buf = (char *) block_data;
116 msg.len = 0;
117 block_data[msg.len++] = reg = data[0];
118 do {
119 block_data[msg.len++] =
120 decoder->reg[reg++] = data[1];
121 len -= 2;
122 data += 2;
123 } while (len >= 2 && data[0] == reg &&
124 msg.len < 32);
125 if ((ret = i2c_transfer(client->adapter,
126 &msg, 1)) < 0)
127 break;
128 }
129 } else {
130 /* do some slow I2C emulation kind of thing */
131 while (len >= 2) {
132 reg = *data++;
133 if ((ret = saa711x_write(client, reg,
134 *data++)) < 0)
135 break;
136 len -= 2;
137 }
138 }
139
140 return ret;
141}
142
143static int
144saa711x_init_decoder (struct i2c_client *client,
145 struct video_decoder_init *init)
146{
147 return saa711x_write_block(client, init->data, init->len);
148}
149
150static inline int
151saa711x_read (struct i2c_client *client,
152 u8 reg)
153{
154 return i2c_smbus_read_byte_data(client, reg);
155}
156
157/* ----------------------------------------------------------------------- */
158
159static const unsigned char saa711x_i2c_init[] = {
160 0x00, 0x00, /* PH711x_CHIP_VERSION 00 - ID byte */
161 0x01, 0x08, /* PH711x_INCREMENT_DELAY - (1) (1) (1) (1) IDEL3 IDEL2 IDELL1 IDEL0 */
162 0x02, 0xc0, /* PH711x_ANALOG_INPUT_CONTR_1 - FUSE1 FUSE0 GUDL1 GUDL0 MODE3 MODE2 MODE1 MODE0 */
163 0x03, 0x23, /* PH711x_ANALOG_INPUT_CONTR_2 - (1) HLNRS VBSL WPOFF HOLDG GAFIX GAI28 GAI18 */
164 0x04, 0x00, /* PH711x_ANALOG_INPUT_CONTR_3 - GAI17 GAI16 GAI15 GAI14 GAI13 GAI12 GAI11 GAI10 */
165 0x05, 0x00, /* PH711x_ANALOG_INPUT_CONTR_4 - GAI27 GAI26 GAI25 GAI24 GAI23 GAI22 GAI21 GAI20 */
166 0x06, 0xeb, /* PH711x_HORIZONTAL_SYNC_START - HSB7 HSB6 HSB5 HSB4 HSB3 HSB2 HSB1 HSB0 */
167 0x07, 0xe0, /* PH711x_HORIZONTAL_SYNC_STOP - HSS7 HSS6 HSS5 HSS4 HSS3 HSS2 HSS1 HSS0 */
168 0x08, 0x88, /* PH711x_SYNC_CONTROL - AUFD FSEL FOET HTC1 HTC0 HPLL VNOI1 VNOI0 */
169 0x09, 0x00, /* PH711x_LUMINANCE_CONTROL - BYPS PREF BPSS1 BPSS0 VBLB UPTCV APER1 APER0 */
170 0x0a, 0x80, /* PH711x_LUMINANCE_BRIGHTNESS - BRIG7 BRIG6 BRIG5 BRIG4 BRIG3 BRIG2 BRIG1 BRIG0 */
171 0x0b, 0x47, /* PH711x_LUMINANCE_CONTRAST - CONT7 CONT6 CONT5 CONT4 CONT3 CONT2 CONT1 CONT0 */
172 0x0c, 0x40, /* PH711x_CHROMA_SATURATION - SATN7 SATN6 SATN5 SATN4 SATN3 SATN2 SATN1 SATN0 */
173 0x0d, 0x00, /* PH711x_CHROMA_HUE_CONTROL - HUEC7 HUEC6 HUEC5 HUEC4 HUEC3 HUEC2 HUEC1 HUEC0 */
174 0x0e, 0x01, /* PH711x_CHROMA_CONTROL - CDTO CSTD2 CSTD1 CSTD0 DCCF FCTC CHBW1 CHBW0 */
175 0x0f, 0xaa, /* PH711x_CHROMA_GAIN_CONTROL - ACGC CGAIN6 CGAIN5 CGAIN4 CGAIN3 CGAIN2 CGAIN1 CGAIN0 */
176 0x10, 0x00, /* PH711x_FORMAT_DELAY_CONTROL - OFTS1 OFTS0 HDEL1 HDEL0 VRLN YDEL2 YDEL1 YDEL0 */
177 0x11, 0x1C, /* PH711x_OUTPUT_CONTROL_1 - GPSW1 CM99 GPSW0 HLSEL OEYC OERT VIPB COLO */
178 0x12, 0x01, /* PH711x_OUTPUT_CONTROL_2 - RTSE13 RTSE12 RTSE11 RTSE10 RTSE03 RTSE02 RTSE01 RTSE00 */
179 0x13, 0x00, /* PH711x_OUTPUT_CONTROL_3 - ADLSB (1) (1) OLDSB FIDP (1) AOSL1 AOSL0 */
180 0x14, 0x00, /* RESERVED 14 - (1) (1) (1) (1) (1) (1) (1) (1) */
181 0x15, 0x00, /* PH711x_V_GATE1_START - VSTA7 VSTA6 VSTA5 VSTA4 VSTA3 VSTA2 VSTA1 VSTA0 */
182 0x16, 0x00, /* PH711x_V_GATE1_STOP - VSTO7 VSTO6 VSTO5 VSTO4 VSTO3 VSTO2 VSTO1 VSTO0 */
183 0x17, 0x00, /* PH711x_V_GATE1_MSB - (1) (1) (1) (1) (1) (1) VSTO8 VSTA8 */
184};
185
186static int
187saa711x_command (struct i2c_client *client,
188 unsigned int cmd,
189 void *arg)
190{
191 struct saa711x *decoder = i2c_get_clientdata(client);
192
193 switch (cmd) {
194
195 case 0:
196 case DECODER_INIT:
197 {
198 struct video_decoder_init *init = arg;
199 if (NULL != init)
200 return saa711x_init_decoder(client, init);
201 else {
202 struct video_decoder_init vdi;
203 vdi.data = saa711x_i2c_init;
204 vdi.len = sizeof(saa711x_i2c_init);
205 return saa711x_init_decoder(client, &vdi);
206 }
207 }
208
209 case DECODER_DUMP:
210 {
211 int i;
212
213 for (i = 0; i < 32; i += 16) {
214 int j;
215
216 printk(KERN_DEBUG "%s: %03x", I2C_NAME(client), i);
217 for (j = 0; j < 16; ++j) {
218 printk(" %02x",
219 saa711x_read(client, i + j));
220 }
221 printk("\n");
222 }
223 }
224 break;
225
226 case DECODER_GET_CAPABILITIES:
227 {
228 struct video_decoder_capability *cap = arg;
229
230 cap->flags = VIDEO_DECODER_PAL |
231 VIDEO_DECODER_NTSC |
232 VIDEO_DECODER_SECAM |
233 VIDEO_DECODER_AUTO |
234 VIDEO_DECODER_CCIR;
235 cap->inputs = 8;
236 cap->outputs = 1;
237 }
238 break;
239
240 case DECODER_GET_STATUS:
241 {
242 int *iarg = arg;
243 int status;
244 int res;
245
246 status = saa711x_read(client, 0x1f);
247 dprintk(1, KERN_DEBUG "%s status: 0x%02x\n", I2C_NAME(client),
248 status);
249 res = 0;
250 if ((status & (1 << 6)) == 0) {
251 res |= DECODER_STATUS_GOOD;
252 }
253 switch (decoder->norm) {
254 case VIDEO_MODE_NTSC:
255 res |= DECODER_STATUS_NTSC;
256 break;
257 case VIDEO_MODE_PAL:
258 res |= DECODER_STATUS_PAL;
259 break;
260 case VIDEO_MODE_SECAM:
261 res |= DECODER_STATUS_SECAM;
262 break;
263 default:
264 case VIDEO_MODE_AUTO:
265 if ((status & (1 << 5)) != 0) {
266 res |= DECODER_STATUS_NTSC;
267 } else {
268 res |= DECODER_STATUS_PAL;
269 }
270 break;
271 }
272 if ((status & (1 << 0)) != 0) {
273 res |= DECODER_STATUS_COLOR;
274 }
275 *iarg = res;
276 }
277 break;
278
279 case DECODER_SET_GPIO:
280 {
281 int *iarg = arg;
282 if (0 != *iarg) {
283 saa711x_write(client, 0x11,
284 (decoder->reg[0x11] | 0x80));
285 } else {
286 saa711x_write(client, 0x11,
287 (decoder->reg[0x11] & 0x7f));
288 }
289 break;
290 }
291
292 case DECODER_SET_VBI_BYPASS:
293 {
294 int *iarg = arg;
295 if (0 != *iarg) {
296 saa711x_write(client, 0x13,
297 (decoder->reg[0x13] & 0xf0) | 0x0a);
298 } else {
299 saa711x_write(client, 0x13,
300 (decoder->reg[0x13] & 0xf0));
301 }
302 break;
303 }
304
305 case DECODER_SET_NORM:
306 {
307 int *iarg = arg;
308
309 switch (*iarg) {
310
311 case VIDEO_MODE_NTSC:
312 saa711x_write(client, 0x08,
313 (decoder->reg[0x08] & 0x3f) | 0x40);
314 saa711x_write(client, 0x0e,
315 (decoder->reg[0x0e] & 0x8f));
316 break;
317
318 case VIDEO_MODE_PAL:
319 saa711x_write(client, 0x08,
320 (decoder->reg[0x08] & 0x3f) | 0x00);
321 saa711x_write(client, 0x0e,
322 (decoder->reg[0x0e] & 0x8f));
323 break;
324
325 case VIDEO_MODE_SECAM:
326 saa711x_write(client, 0x08,
327 (decoder->reg[0x0e] & 0x3f) | 0x00);
328 saa711x_write(client, 0x0e,
329 (decoder->reg[0x0e] & 0x8f) | 0x50);
330 break;
331
332 case VIDEO_MODE_AUTO:
333 saa711x_write(client, 0x08,
334 (decoder->reg[0x08] & 0x3f) | 0x80);
335 saa711x_write(client, 0x0e,
336 (decoder->reg[0x0e] & 0x8f));
337 break;
338
339 default:
340 return -EINVAL;
341
342 }
343 decoder->norm = *iarg;
344 }
345 break;
346
347 case DECODER_SET_INPUT:
348 {
349 int *iarg = arg;
350 if (*iarg < 0 || *iarg > 9) {
351 return -EINVAL;
352 }
353 if (decoder->input != *iarg) {
354 decoder->input = *iarg;
355 /* select mode */
356 saa711x_write(client, 0x02,
357 (decoder->reg[0x02] & 0xf0) | decoder->input);
358 /* bypass chrominance trap for modes 4..7 */
359 saa711x_write(client, 0x09,
360 (decoder->reg[0x09] & 0x7f) | ((decoder->input > 3) ? 0x80 : 0));
361 }
362 }
363 break;
364
365 case DECODER_SET_OUTPUT:
366 {
367 int *iarg = arg;
368
369 /* not much choice of outputs */
370 if (*iarg != 0) {
371 return -EINVAL;
372 }
373 }
374 break;
375
376 case DECODER_ENABLE_OUTPUT:
377 {
378 int *iarg = arg;
379 int enable = (*iarg != 0);
380
381 if (decoder->enable != enable) {
382 decoder->enable = enable;
383
384 /* RJ: If output should be disabled (for
385 * playing videos), we also need a open PLL.
386 * The input is set to 0 (where no input
387 * source is connected), although this
388 * is not necessary.
389 *
390 * If output should be enabled, we have to
391 * reverse the above.
392 */
393
394 if (decoder->enable) {
395 saa711x_write(client, 0x02,
396 (decoder->
397 reg[0x02] & 0xf8) |
398 decoder->input);
399 saa711x_write(client, 0x08,
400 (decoder->reg[0x08] & 0xfb));
401 saa711x_write(client, 0x11,
402 (decoder->
403 reg[0x11] & 0xf3) | 0x0c);
404 } else {
405 saa711x_write(client, 0x02,
406 (decoder->reg[0x02] & 0xf8));
407 saa711x_write(client, 0x08,
408 (decoder->
409 reg[0x08] & 0xfb) | 0x04);
410 saa711x_write(client, 0x11,
411 (decoder->reg[0x11] & 0xf3));
412 }
413 }
414 }
415 break;
416
417 case DECODER_SET_PICTURE:
418 {
419 struct video_picture *pic = arg;
420
421 if (decoder->bright != pic->brightness) {
422 /* We want 0 to 255 we get 0-65535 */
423 decoder->bright = pic->brightness;
424 saa711x_write(client, 0x0a, decoder->bright >> 8);
425 }
426 if (decoder->contrast != pic->contrast) {
427 /* We want 0 to 127 we get 0-65535 */
428 decoder->contrast = pic->contrast;
429 saa711x_write(client, 0x0b,
430 decoder->contrast >> 9);
431 }
432 if (decoder->sat != pic->colour) {
433 /* We want 0 to 127 we get 0-65535 */
434 decoder->sat = pic->colour;
435 saa711x_write(client, 0x0c, decoder->sat >> 9);
436 }
437 if (decoder->hue != pic->hue) {
438 /* We want -128 to 127 we get 0-65535 */
439 decoder->hue = pic->hue;
440 saa711x_write(client, 0x0d,
441 (decoder->hue - 32768) >> 8);
442 }
443 }
444 break;
445
446 default:
447 return -EINVAL;
448 }
449
450 return 0;
451}
452
453/* ----------------------------------------------------------------------- */
454
455/*
456 * Generic i2c probe
457 * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
458 */
459
460/* standard i2c insmod options */
461static unsigned short normal_i2c[] = {
462 I2C_SAA7113>>1, /* saa7113 */
463 I2C_SAA7114>>1, /* saa7114 */
464 I2C_CLIENT_END
465};
466
467I2C_CLIENT_INSMOD;
468
469
470static struct i2c_driver i2c_driver_saa711x;
471
472static int
473saa711x_detect_client (struct i2c_adapter *adapter,
474 int address,
475 int kind)
476{
477 int i;
478 struct i2c_client *client;
479 struct saa711x *decoder;
480 struct video_decoder_init vdi;
481
482 dprintk(1,
483 KERN_INFO
484 "saa711x.c: detecting saa711x client on address 0x%x\n",
485 address << 1);
486
487 /* Check if the adapter supports the needed features */
488 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
489 return 0;
490
491 client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
492 if (client == 0)
493 return -ENOMEM;
494 memset(client, 0, sizeof(struct i2c_client));
495 client->addr = address;
496 client->adapter = adapter;
497 client->driver = &i2c_driver_saa711x;
498 client->flags = I2C_CLIENT_ALLOW_USE;
499 strlcpy(I2C_NAME(client), "saa711x", sizeof(I2C_NAME(client)));
500 decoder = kmalloc(sizeof(struct saa711x), GFP_KERNEL);
501 if (decoder == NULL) {
502 kfree(client);
503 return -ENOMEM;
504 }
505 memset(decoder, 0, sizeof(struct saa711x));
506 decoder->norm = VIDEO_MODE_NTSC;
507 decoder->input = 0;
508 decoder->enable = 1;
509 decoder->bright = 32768;
510 decoder->contrast = 32768;
511 decoder->hue = 32768;
512 decoder->sat = 32768;
513 i2c_set_clientdata(client, decoder);
514
515 i = i2c_attach_client(client);
516 if (i) {
517 kfree(client);
518 kfree(decoder);
519 return i;
520 }
521
522 vdi.data = saa711x_i2c_init;
523 vdi.len = sizeof(saa711x_i2c_init);
524 i = saa711x_init_decoder(client, &vdi);
525 if (i < 0) {
526 dprintk(1, KERN_ERR "%s_attach error: init status %d\n",
527 I2C_NAME(client), i);
528 } else {
529 dprintk(1,
530 KERN_INFO
531 "%s_attach: chip version %x at address 0x%x\n",
532 I2C_NAME(client), saa711x_read(client, 0x00) >> 4,
533 client->addr << 1);
534 }
535
536 return 0;
537}
538
539static int
540saa711x_attach_adapter (struct i2c_adapter *adapter)
541{
542 dprintk(1,
543 KERN_INFO
544 "saa711x.c: starting probe for adapter %s (0x%x)\n",
545 I2C_NAME(adapter), adapter->id);
546 return i2c_probe(adapter, &addr_data, &saa711x_detect_client);
547}
548
549static int
550saa711x_detach_client (struct i2c_client *client)
551{
552 struct saa711x *decoder = i2c_get_clientdata(client);
553 int err;
554
555 err = i2c_detach_client(client);
556 if (err) {
557 return err;
558 }
559
560 kfree(decoder);
561 kfree(client);
562
563 return 0;
564}
565
566/* ----------------------------------------------------------------------- */
567
568static struct i2c_driver i2c_driver_saa711x = {
569 .owner = THIS_MODULE,
570 .name = "saa711x",
571
572 .id = I2C_DRIVERID_SAA711X,
573 .flags = I2C_DF_NOTIFY,
574
575 .attach_adapter = saa711x_attach_adapter,
576 .detach_client = saa711x_detach_client,
577 .command = saa711x_command,
578};
579
580static int __init
581saa711x_init (void)
582{
583 return i2c_add_driver(&i2c_driver_saa711x);
584}
585
586static void __exit
587saa711x_exit (void)
588{
589 i2c_del_driver(&i2c_driver_saa711x);
590}
591
592module_init(saa711x_init);
593module_exit(saa711x_exit);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-04 16:05:27 -0500