diff options
Diffstat (limited to 'linux/drivers/media/video/saa7134/saa7134.h')
| -rw-r--r-- | linux/drivers/media/video/saa7134/saa7134.h | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/linux/drivers/media/video/saa7134/saa7134.h b/linux/drivers/media/video/saa7134/saa7134.h index 9e3b37c73..040f447c6 100644 --- a/linux/drivers/media/video/saa7134/saa7134.h +++ b/linux/drivers/media/video/saa7134/saa7134.h @@ -594,6 +594,7 @@ struct saa7134_dev { int (*original_set_voltage)(struct dvb_frontend *fe, fe_sec_voltage_t voltage); int (*original_set_high_voltage)(struct dvb_frontend *fe, long arg); #endif + void (*gate_ctrl)(struct saa7134_dev *dev, int open); }; /* ----------------------------------------------------------- */ @@ -623,10 +624,24 @@ struct saa7134_dev { V4L2_STD_PAL_60) #define GRP_EMPRESS (1) -#define saa_call_all(dev, o, f, args...) \ - v4l2_device_call_all(&(dev)->v4l2_dev, 0, o, f , ##args) -#define saa_call_empress(dev, o, f, args...) \ - v4l2_device_call_until_err(&(dev)->v4l2_dev, GRP_EMPRESS, o, f , ##args) +#define saa_call_all(dev, o, f, args...) do { \ + if (dev->gate_ctrl) \ + dev->gate_ctrl(dev, 1); \ + v4l2_device_call_all(&(dev)->v4l2_dev, 0, o, f , ##args); \ + if (dev->gate_ctrl) \ + dev->gate_ctrl(dev, 0); \ +} while (0) + +#define saa_call_empress(dev, o, f, args...) ({ \ + long _rc; \ + if (dev->gate_ctrl) \ + dev->gate_ctrl(dev, 1); \ + _rc = v4l2_device_call_until_err(&(dev)->v4l2_dev, \ + GRP_EMPRESS, o, f , ##args); \ + if (dev->gate_ctrl) \ + dev->gate_ctrl(dev, 0); \ + _rc; \ +}) /* ----------------------------------------------------------- */ /* saa7134-core.c */ |