diff options
| author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2014-04-01 08:37:38 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-04-23 11:31:33 -0300 |
| commit | 6f7481b6685daf693e995e8653f6c8d27cfe5bfc (patch) | |
| tree | bde1311964fbd774ec748e70282a238c58f7cc3d /drivers/media/i2c/smiapp/smiapp-quirk.h | |
| parent | 03efb2a067beaea0496bd6e411452ca90dab9d01 (diff) | |
[media] smiapp: Add register diversion quirk
Add a quirk for diverting registers for on some sensors, even the standard
registers are not where they can be expected to be found. Add a quirk to
to help using such sensors.
smiapp_write_no_quirk() and smiapp_read_no_quirk() functions are provided
for the use of quirk implementations.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/i2c/smiapp/smiapp-quirk.h')
| -rw-r--r-- | drivers/media/i2c/smiapp/smiapp-quirk.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/media/i2c/smiapp/smiapp-quirk.h b/drivers/media/i2c/smiapp/smiapp-quirk.h index dddb62beeb29..46e9ea8bfa08 100644 --- a/drivers/media/i2c/smiapp/smiapp-quirk.h +++ b/drivers/media/i2c/smiapp/smiapp-quirk.h @@ -35,6 +35,17 @@ struct smiapp_sensor; * @post_poweron: Called always after the sensor has been fully powered on. * @pre_streamon: Called just before streaming is enabled. * @post_streamon: Called right after stopping streaming. + * @reg_access: Register access quirk. The quirk may divert the access + * to another register, or no register at all. + * + * @write: Is this read (false) or write (true) access? + * @reg: Pointer to the register to access + * @value: Register value, set by the caller on write, or + * by the quirk on read + * + * @return: 0 on success, -ENOIOCTLCMD if no register + * access may be done by the caller (default read + * value is zero), else negative error code on error */ struct smiapp_quirk { int (*limits)(struct smiapp_sensor *sensor); @@ -42,6 +53,8 @@ struct smiapp_quirk { int (*pre_streamon)(struct smiapp_sensor *sensor); int (*post_streamoff)(struct smiapp_sensor *sensor); unsigned long (*pll_flags)(struct smiapp_sensor *sensor); + int (*reg_access)(struct smiapp_sensor *sensor, bool write, u32 *reg, + u32 *val); unsigned long flags; }; |