2 * saa711x - Philips SAA711x video decoder driver version 0.0.1
4 * To do: Now, it handles only saa7113/7114. Should be improved to
5 * handle all Philips saa711x devices.
7 * Based on saa7113 driver from Dave Perks <dperks@ibm.net>
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.
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.
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.
24 #include <linux/module.h>
25 #include <linux/init.h>
26 #include <linux/delay.h>
27 #include <linux/errno.h>
29 #include <linux/kernel.h>
30 #include <linux/major.h>
31 #include <linux/slab.h>
33 #include <linux/pci.h>
34 #include <linux/signal.h>
36 #include <asm/pgtable.h>
38 #include <linux/types.h>
39 #include <asm/uaccess.h>
40 #include <linux/videodev.h>
42 MODULE_DESCRIPTION("Philips SAA711x video decoder driver");
43 MODULE_AUTHOR("Dave Perks, Jose Ignacio Gijon, Joerg Heckenbach, Mark McClelland, Dwaine Garden");
44 MODULE_LICENSE("GPL");
46 #include <linux/i2c.h>
48 #define I2C_NAME(s) (s)->name
50 #include <linux/video_decoder.h>
53 module_param(debug
, int, 0644);
54 MODULE_PARM_DESC(debug
, " Set the default Debug level. Default: 0 (Off) - (0-1)");
57 #define dprintk(num, format, args...) \
60 printk(format, ##args); \
63 /* ----------------------------------------------------------------------- */
66 unsigned char reg
[32];
77 #define I2C_SAA7113 0x4A
78 #define I2C_SAA7114 0x42
80 /* ----------------------------------------------------------------------- */
83 saa711x_write (struct i2c_client
*client
,
87 struct saa711x
*decoder
= i2c_get_clientdata(client
);
89 decoder
->reg
[reg
] = value
;
90 return i2c_smbus_write_byte_data(client
, reg
, value
);
94 saa711x_write_block (struct i2c_client
*client
,
101 /* the saa711x has an autoincrement function, use it if
102 * the adapter understands raw I2C */
103 if (i2c_check_functionality(client
->adapter
, I2C_FUNC_I2C
)) {
104 /* do raw I2C, not smbus compatible */
105 struct saa711x
*decoder
= i2c_get_clientdata(client
);
109 msg
.addr
= client
->addr
;
112 msg
.buf
= (char *) block_data
;
114 block_data
[msg
.len
++] = reg
= data
[0];
116 block_data
[msg
.len
++] =
117 decoder
->reg
[reg
++] = data
[1];
120 } while (len
>= 2 && data
[0] == reg
&&
122 if ((ret
= i2c_transfer(client
->adapter
,
127 /* do some slow I2C emulation kind of thing */
130 if ((ret
= saa711x_write(client
, reg
,
141 saa711x_init_decoder (struct i2c_client
*client
,
142 struct video_decoder_init
*init
)
144 return saa711x_write_block(client
, init
->data
, init
->len
);
148 saa711x_read (struct i2c_client
*client
,
151 return i2c_smbus_read_byte_data(client
, reg
);
154 /* ----------------------------------------------------------------------- */
156 static const unsigned char saa711x_i2c_init
[] = {
157 0x00, 0x00, /* PH711x_CHIP_VERSION 00 - ID byte */
158 0x01, 0x08, /* PH711x_INCREMENT_DELAY - (1) (1) (1) (1) IDEL3 IDEL2 IDELL1 IDEL0 */
159 0x02, 0xc0, /* PH711x_ANALOG_INPUT_CONTR_1 - FUSE1 FUSE0 GUDL1 GUDL0 MODE3 MODE2 MODE1 MODE0 */
160 0x03, 0x23, /* PH711x_ANALOG_INPUT_CONTR_2 - (1) HLNRS VBSL WPOFF HOLDG GAFIX GAI28 GAI18 */
161 0x04, 0x00, /* PH711x_ANALOG_INPUT_CONTR_3 - GAI17 GAI16 GAI15 GAI14 GAI13 GAI12 GAI11 GAI10 */
162 0x05, 0x00, /* PH711x_ANALOG_INPUT_CONTR_4 - GAI27 GAI26 GAI25 GAI24 GAI23 GAI22 GAI21 GAI20 */
163 0x06, 0xeb, /* PH711x_HORIZONTAL_SYNC_START - HSB7 HSB6 HSB5 HSB4 HSB3 HSB2 HSB1 HSB0 */
164 0x07, 0xe0, /* PH711x_HORIZONTAL_SYNC_STOP - HSS7 HSS6 HSS5 HSS4 HSS3 HSS2 HSS1 HSS0 */
165 0x08, 0x88, /* PH711x_SYNC_CONTROL - AUFD FSEL FOET HTC1 HTC0 HPLL VNOI1 VNOI0 */
166 0x09, 0x00, /* PH711x_LUMINANCE_CONTROL - BYPS PREF BPSS1 BPSS0 VBLB UPTCV APER1 APER0 */
167 0x0a, 0x80, /* PH711x_LUMINANCE_BRIGHTNESS - BRIG7 BRIG6 BRIG5 BRIG4 BRIG3 BRIG2 BRIG1 BRIG0 */
168 0x0b, 0x47, /* PH711x_LUMINANCE_CONTRAST - CONT7 CONT6 CONT5 CONT4 CONT3 CONT2 CONT1 CONT0 */
169 0x0c, 0x40, /* PH711x_CHROMA_SATURATION - SATN7 SATN6 SATN5 SATN4 SATN3 SATN2 SATN1 SATN0 */
170 0x0d, 0x00, /* PH711x_CHROMA_HUE_CONTROL - HUEC7 HUEC6 HUEC5 HUEC4 HUEC3 HUEC2 HUEC1 HUEC0 */
171 0x0e, 0x01, /* PH711x_CHROMA_CONTROL - CDTO CSTD2 CSTD1 CSTD0 DCCF FCTC CHBW1 CHBW0 */
172 0x0f, 0xaa, /* PH711x_CHROMA_GAIN_CONTROL - ACGC CGAIN6 CGAIN5 CGAIN4 CGAIN3 CGAIN2 CGAIN1 CGAIN0 */
173 0x10, 0x00, /* PH711x_FORMAT_DELAY_CONTROL - OFTS1 OFTS0 HDEL1 HDEL0 VRLN YDEL2 YDEL1 YDEL0 */
174 0x11, 0x1C, /* PH711x_OUTPUT_CONTROL_1 - GPSW1 CM99 GPSW0 HLSEL OEYC OERT VIPB COLO */
175 0x12, 0x01, /* PH711x_OUTPUT_CONTROL_2 - RTSE13 RTSE12 RTSE11 RTSE10 RTSE03 RTSE02 RTSE01 RTSE00 */
176 0x13, 0x00, /* PH711x_OUTPUT_CONTROL_3 - ADLSB (1) (1) OLDSB FIDP (1) AOSL1 AOSL0 */
177 0x14, 0x00, /* RESERVED 14 - (1) (1) (1) (1) (1) (1) (1) (1) */
178 0x15, 0x00, /* PH711x_V_GATE1_START - VSTA7 VSTA6 VSTA5 VSTA4 VSTA3 VSTA2 VSTA1 VSTA0 */
179 0x16, 0x00, /* PH711x_V_GATE1_STOP - VSTO7 VSTO6 VSTO5 VSTO4 VSTO3 VSTO2 VSTO1 VSTO0 */
180 0x17, 0x00, /* PH711x_V_GATE1_MSB - (1) (1) (1) (1) (1) (1) VSTO8 VSTA8 */
184 saa711x_command (struct i2c_client
*client
,
188 struct saa711x
*decoder
= i2c_get_clientdata(client
);
195 struct video_decoder_init
*init
= arg
;
197 return saa711x_init_decoder(client
, init
);
199 struct video_decoder_init vdi
;
200 vdi
.data
= saa711x_i2c_init
;
201 vdi
.len
= sizeof(saa711x_i2c_init
);
202 return saa711x_init_decoder(client
, &vdi
);
210 for (i
= 0; i
< 32; i
+= 16) {
213 printk(KERN_DEBUG
"%s: %03x", I2C_NAME(client
), i
);
214 for (j
= 0; j
< 16; ++j
) {
216 saa711x_read(client
, i
+ j
));
223 case DECODER_GET_CAPABILITIES
:
225 struct video_decoder_capability
*cap
= arg
;
227 cap
->flags
= VIDEO_DECODER_PAL
|
229 VIDEO_DECODER_SECAM
|
237 case DECODER_GET_STATUS
:
243 status
= saa711x_read(client
, 0x1f);
244 dprintk(1, KERN_DEBUG
"%s status: 0x%02x\n", I2C_NAME(client
),
247 if ((status
& (1 << 6)) == 0) {
248 res
|= DECODER_STATUS_GOOD
;
250 switch (decoder
->norm
) {
251 case VIDEO_MODE_NTSC
:
252 res
|= DECODER_STATUS_NTSC
;
255 res
|= DECODER_STATUS_PAL
;
257 case VIDEO_MODE_SECAM
:
258 res
|= DECODER_STATUS_SECAM
;
261 case VIDEO_MODE_AUTO
:
262 if ((status
& (1 << 5)) != 0) {
263 res
|= DECODER_STATUS_NTSC
;
265 res
|= DECODER_STATUS_PAL
;
269 if ((status
& (1 << 0)) != 0) {
270 res
|= DECODER_STATUS_COLOR
;
276 case DECODER_SET_GPIO
:
280 saa711x_write(client
, 0x11,
281 (decoder
->reg
[0x11] | 0x80));
283 saa711x_write(client
, 0x11,
284 (decoder
->reg
[0x11] & 0x7f));
289 case DECODER_SET_VBI_BYPASS
:
293 saa711x_write(client
, 0x13,
294 (decoder
->reg
[0x13] & 0xf0) | 0x0a);
296 saa711x_write(client
, 0x13,
297 (decoder
->reg
[0x13] & 0xf0));
302 case DECODER_SET_NORM
:
308 case VIDEO_MODE_NTSC
:
309 saa711x_write(client
, 0x08,
310 (decoder
->reg
[0x08] & 0x3f) | 0x40);
311 saa711x_write(client
, 0x0e,
312 (decoder
->reg
[0x0e] & 0x8f));
316 saa711x_write(client
, 0x08,
317 (decoder
->reg
[0x08] & 0x3f) | 0x00);
318 saa711x_write(client
, 0x0e,
319 (decoder
->reg
[0x0e] & 0x8f));
322 case VIDEO_MODE_SECAM
:
323 saa711x_write(client
, 0x08,
324 (decoder
->reg
[0x08] & 0x3f) | 0x00);
325 saa711x_write(client
, 0x0e,
326 (decoder
->reg
[0x0e] & 0x8f) | 0x50);
329 case VIDEO_MODE_AUTO
:
330 saa711x_write(client
, 0x08,
331 (decoder
->reg
[0x08] & 0x3f) | 0x80);
332 saa711x_write(client
, 0x0e,
333 (decoder
->reg
[0x0e] & 0x8f));
340 decoder
->norm
= *iarg
;
344 case DECODER_SET_INPUT
:
347 if (*iarg
< 0 || *iarg
> 9) {
350 if (decoder
->input
!= *iarg
) {
351 decoder
->input
= *iarg
;
353 saa711x_write(client
, 0x02,
354 (decoder
->reg
[0x02] & 0xf0) | decoder
->input
);
355 /* bypass chrominance trap for modes 4..7 */
356 saa711x_write(client
, 0x09,
357 (decoder
->reg
[0x09] & 0x7f) | ((decoder
->input
> 3) ? 0x80 : 0));
362 case DECODER_SET_OUTPUT
:
366 /* not much choice of outputs */
373 case DECODER_ENABLE_OUTPUT
:
376 int enable
= (*iarg
!= 0);
378 if (decoder
->enable
!= enable
) {
379 decoder
->enable
= enable
;
381 /* RJ: If output should be disabled (for
382 * playing videos), we also need a open PLL.
383 * The input is set to 0 (where no input
384 * source is connected), although this
387 * If output should be enabled, we have to
391 if (decoder
->enable
) {
392 saa711x_write(client
, 0x02,
396 saa711x_write(client
, 0x08,
397 (decoder
->reg
[0x08] & 0xfb));
398 saa711x_write(client
, 0x11,
400 reg
[0x11] & 0xf3) | 0x0c);
402 saa711x_write(client
, 0x02,
403 (decoder
->reg
[0x02] & 0xf8));
404 saa711x_write(client
, 0x08,
406 reg
[0x08] & 0xfb) | 0x04);
407 saa711x_write(client
, 0x11,
408 (decoder
->reg
[0x11] & 0xf3));
414 case DECODER_SET_PICTURE
:
416 struct video_picture
*pic
= arg
;
418 if (decoder
->bright
!= pic
->brightness
) {
419 /* We want 0 to 255 we get 0-65535 */
420 decoder
->bright
= pic
->brightness
;
421 saa711x_write(client
, 0x0a, decoder
->bright
>> 8);
423 if (decoder
->contrast
!= pic
->contrast
) {
424 /* We want 0 to 127 we get 0-65535 */
425 decoder
->contrast
= pic
->contrast
;
426 saa711x_write(client
, 0x0b,
427 decoder
->contrast
>> 9);
429 if (decoder
->sat
!= pic
->colour
) {
430 /* We want 0 to 127 we get 0-65535 */
431 decoder
->sat
= pic
->colour
;
432 saa711x_write(client
, 0x0c, decoder
->sat
>> 9);
434 if (decoder
->hue
!= pic
->hue
) {
435 /* We want -128 to 127 we get 0-65535 */
436 decoder
->hue
= pic
->hue
;
437 saa711x_write(client
, 0x0d,
438 (decoder
->hue
- 32768) >> 8);
450 /* ----------------------------------------------------------------------- */
454 * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
457 /* standard i2c insmod options */
458 static unsigned short normal_i2c
[] = {
459 I2C_SAA7113
>>1, /* saa7113 */
460 I2C_SAA7114
>>1, /* saa7114 */
467 static struct i2c_driver i2c_driver_saa711x
;
470 saa711x_detect_client (struct i2c_adapter
*adapter
,
475 struct i2c_client
*client
;
476 struct saa711x
*decoder
;
477 struct video_decoder_init vdi
;
481 "saa711x.c: detecting saa711x client on address 0x%x\n",
484 /* Check if the adapter supports the needed features */
485 if (!i2c_check_functionality(adapter
, I2C_FUNC_SMBUS_BYTE_DATA
))
488 client
= kzalloc(sizeof(struct i2c_client
), GFP_KERNEL
);
491 client
->addr
= address
;
492 client
->adapter
= adapter
;
493 client
->driver
= &i2c_driver_saa711x
;
494 strlcpy(I2C_NAME(client
), "saa711x", sizeof(I2C_NAME(client
)));
495 decoder
= kzalloc(sizeof(struct saa711x
), GFP_KERNEL
);
496 if (decoder
== NULL
) {
500 decoder
->norm
= VIDEO_MODE_NTSC
;
503 decoder
->bright
= 32768;
504 decoder
->contrast
= 32768;
505 decoder
->hue
= 32768;
506 decoder
->sat
= 32768;
507 i2c_set_clientdata(client
, decoder
);
509 i
= i2c_attach_client(client
);
516 vdi
.data
= saa711x_i2c_init
;
517 vdi
.len
= sizeof(saa711x_i2c_init
);
518 i
= saa711x_init_decoder(client
, &vdi
);
520 dprintk(1, KERN_ERR
"%s_attach error: init status %d\n",
521 I2C_NAME(client
), i
);
525 "%s_attach: chip version %x at address 0x%x\n",
526 I2C_NAME(client
), saa711x_read(client
, 0x00) >> 4,
534 saa711x_attach_adapter (struct i2c_adapter
*adapter
)
538 "saa711x.c: starting probe for adapter %s (0x%x)\n",
539 I2C_NAME(adapter
), adapter
->id
);
540 return i2c_probe(adapter
, &addr_data
, &saa711x_detect_client
);
544 saa711x_detach_client (struct i2c_client
*client
)
546 struct saa711x
*decoder
= i2c_get_clientdata(client
);
549 err
= i2c_detach_client(client
);
560 /* ----------------------------------------------------------------------- */
562 static struct i2c_driver i2c_driver_saa711x
= {
566 .id
= I2C_DRIVERID_SAA711X
,
567 .attach_adapter
= saa711x_attach_adapter
,
568 .detach_client
= saa711x_detach_client
,
569 .command
= saa711x_command
,
575 return i2c_add_driver(&i2c_driver_saa711x
);
581 i2c_del_driver(&i2c_driver_saa711x
);
584 module_init(saa711x_init
);
585 module_exit(saa711x_exit
);