diff options
| author | Jean-François Moine <moinejf@free.fr> | 2012-03-24 09:23:56 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-05-03 15:29:55 -0300 |
| commit | c4407fe86d3856f60ec711e025bbe9a0159354a3 (patch) | |
| tree | f21ecb7f4e0fc4c986c1a2fea14773c6f13e8ae8 /drivers/media/video/gspca/sn9c20x.c | |
| parent | dae1de645e41a5d7f36686ebcb62987545f95e94 (diff) | |
[media] gspca - sn9c20x: Set the i2c interface speed
The i2c interface speed was set to 400 Kb/s while it is 100 Kb/s
for most sensors.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/gspca/sn9c20x.c')
| -rw-r--r-- | drivers/media/video/gspca/sn9c20x.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/drivers/media/video/gspca/sn9c20x.c b/drivers/media/video/gspca/sn9c20x.c index 0958a93e0b82..c5b42e4ac9b4 100644 --- a/drivers/media/video/gspca/sn9c20x.c +++ b/drivers/media/video/gspca/sn9c20x.c @@ -105,6 +105,7 @@ struct sd { u8 exposure_step; u8 i2c_addr; + u8 i2c_intf; u8 sensor; u8 hstart; u8 vstart; @@ -1168,7 +1169,7 @@ static void i2c_w1(struct gspca_dev *gspca_dev, u8 reg, u8 val) * from the point of view of the bridge, the length * includes the address */ - row[0] = 0x81 | (2 << 4); + row[0] = sd->i2c_intf | (2 << 4); row[1] = sd->i2c_addr; row[2] = reg; row[3] = val; @@ -1198,7 +1199,7 @@ static void i2c_w2(struct gspca_dev *gspca_dev, u8 reg, u16 val) * from the point of view of the bridge, the length * includes the address */ - row[0] = 0x81 | (3 << 4); + row[0] = sd->i2c_intf | (3 << 4); row[1] = sd->i2c_addr; row[2] = reg; row[3] = val >> 8; @@ -1224,7 +1225,7 @@ static void i2c_r1(struct gspca_dev *gspca_dev, u8 reg, u8 *val) struct sd *sd = (struct sd *) gspca_dev; u8 row[8]; - row[0] = 0x81 | (1 << 4); + row[0] = sd->i2c_intf | (1 << 4); row[1] = sd->i2c_addr; row[2] = reg; row[3] = 0; @@ -1233,7 +1234,7 @@ static void i2c_r1(struct gspca_dev *gspca_dev, u8 reg, u8 *val) row[6] = 0; row[7] = 0x10; i2c_w(gspca_dev, row); - row[0] = 0x81 | (1 << 4) | 0x02; + row[0] = sd->i2c_intf | (1 << 4) | 0x02; row[2] = 0; i2c_w(gspca_dev, row); reg_r(gspca_dev, 0x10c2, 5); @@ -1245,7 +1246,7 @@ static void i2c_r2(struct gspca_dev *gspca_dev, u8 reg, u16 *val) struct sd *sd = (struct sd *) gspca_dev; u8 row[8]; - row[0] = 0x81 | (1 << 4); + row[0] = sd->i2c_intf | (1 << 4); row[1] = sd->i2c_addr; row[2] = reg; row[3] = 0; @@ -1254,7 +1255,7 @@ static void i2c_r2(struct gspca_dev *gspca_dev, u8 reg, u16 *val) row[6] = 0; row[7] = 0x10; i2c_w(gspca_dev, row); - row[0] = 0x81 | (2 << 4) | 0x02; + row[0] = sd->i2c_intf | (2 << 4) | 0x02; row[2] = 0; i2c_w(gspca_dev, row); reg_r(gspca_dev, 0x10c2, 5); @@ -1642,7 +1643,8 @@ static void set_hvflip(struct gspca_dev *gspca_dev) static void set_exposure(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; - u8 exp[8] = {0x81, sd->i2c_addr, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e}; + u8 exp[8] = {sd->i2c_intf, sd->i2c_addr, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e}; int expo; expo = sd->ctrls[EXPOSURE].val; @@ -1680,7 +1682,8 @@ static void set_exposure(struct gspca_dev *gspca_dev) static void set_gain(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; - u8 gain[8] = {0x81, sd->i2c_addr, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1d}; + u8 gain[8] = {sd->i2c_intf, sd->i2c_addr, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x1d}; int g; g = sd->ctrls[GAIN].val; @@ -1828,6 +1831,7 @@ static int sd_config(struct gspca_dev *gspca_dev, sd->sensor = id->driver_info >> 8; sd->i2c_addr = id->driver_info; sd->flags = id->driver_info >> 16; + sd->i2c_intf = 0x80; /* i2c 100 Kb/s */ switch (sd->sensor) { case SENSOR_MT9M112: @@ -1841,6 +1845,9 @@ static int sd_config(struct gspca_dev *gspca_dev, cam->cam_mode = mono_mode; cam->nmodes = ARRAY_SIZE(mono_mode); break; + case SENSOR_HV7131R: + sd->i2c_intf = 0x81; /* i2c 400 Kb/s */ + /* fall thru */ default: cam->cam_mode = vga_mode; cam->nmodes = ARRAY_SIZE(vga_mode); |