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path: root/drivers/media/video/em28xx/em28xx-i2c.c
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Diffstat (limited to 'drivers/media/video/em28xx/em28xx-i2c.c')
-rw-r--r--drivers/media/video/em28xx/em28xx-i2c.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/media/video/em28xx/em28xx-i2c.c b/drivers/media/video/em28xx/em28xx-i2c.c
index e48191fb1dde..a33878e08799 100644
--- a/drivers/media/video/em28xx/em28xx-i2c.c
+++ b/drivers/media/video/em28xx/em28xx-i2c.c
@@ -28,6 +28,7 @@
28#include <linux/video_decoder.h> 28#include <linux/video_decoder.h>
29 29
30#include "em28xx.h" 30#include "em28xx.h"
31#include "tuner-xc2028.h"
31#include <media/v4l2-common.h> 32#include <media/v4l2-common.h>
32#include <media/tuner.h> 33#include <media/tuner.h>
33 34
@@ -391,6 +392,26 @@ static u32 functionality(struct i2c_adapter *adap)
391} 392}
392 393
393 394
395static int em28xx_tuner_callback(void *ptr, int command, int arg)
396{
397 int rc = 0;
398 struct em28xx *dev = ptr;
399
400 if (dev->tuner_type != TUNER_XC2028)
401 return 0;
402
403 switch (command) {
404 case XC2028_TUNER_RESET:
405 /* FIXME: This is device-dependent */
406 dev->em28xx_write_regs_req(dev, 0x00, 0x48, "\x00", 1);
407 dev->em28xx_write_regs_req(dev, 0x00, 0x12, "\x67", 1);
408
409 msleep(140);
410 break;
411 }
412 return rc;
413}
414
394static int em28xx_set_tuner(int check_eeprom, struct i2c_client *client) 415static int em28xx_set_tuner(int check_eeprom, struct i2c_client *client)
395{ 416{
396 struct em28xx *dev = client->adapter->algo_data; 417 struct em28xx *dev = client->adapter->algo_data;
@@ -400,6 +421,8 @@ static int em28xx_set_tuner(int check_eeprom, struct i2c_client *client)
400 tun_setup.mode_mask = T_ANALOG_TV | T_RADIO; 421 tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
401 tun_setup.type = dev->tuner_type; 422 tun_setup.type = dev->tuner_type;
402 tun_setup.addr = dev->tuner_addr; 423 tun_setup.addr = dev->tuner_addr;
424 tun_setup.tuner_callback = em28xx_tuner_callback;
425
403 em28xx_i2c_call_clients(dev, TUNER_SET_TYPE_ADDR, &tun_setup); 426 em28xx_i2c_call_clients(dev, TUNER_SET_TYPE_ADDR, &tun_setup);
404 } 427 }
405 428