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| author | Erik Andrén <erik.andren@gmail.com> | 2008-11-27 13:41:55 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-30 09:39:53 -0200 |
| commit | edbfbdb3bdcf9ae90ce06b92636a07c05224fe45 (patch) | |
| tree | 53b1eb77e6b0199f4356da1a459ab3cd7fd4f540 /drivers/media/video/gspca/m5602/m5602_core.c | |
| parent | e7a7f5103bddf2491760677cdd715a865b889072 (diff) | |
| download | kernel_samsung_smdk4412-edbfbdb3bdcf9ae90ce06b92636a07c05224fe45.zip kernel_samsung_smdk4412-edbfbdb3bdcf9ae90ce06b92636a07c05224fe45.tar.gz kernel_samsung_smdk4412-edbfbdb3bdcf9ae90ce06b92636a07c05224fe45.tar.bz2 | |
V4L/DVB (10018): gspca - m5602 - ov9650: Use generic read_sensor function
Toggle read sensor sequence depending on type of sensor. Check that no
more than max width of a sensor is read.
Signed-off-by: Erik Andrén <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/gspca/m5602/m5602_core.c')
| -rw-r--r-- | drivers/media/video/gspca/m5602/m5602_core.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/drivers/media/video/gspca/m5602/m5602_core.c b/drivers/media/video/gspca/m5602/m5602_core.c index aaba420..691b09a 100644 --- a/drivers/media/video/gspca/m5602/m5602_core.c +++ b/drivers/media/video/gspca/m5602/m5602_core.c @@ -85,9 +85,14 @@ int m5602_read_sensor(struct sd *sd, const u8 address, { int err, i; + if (!len || len > sd->sensor->i2c_regW) + return -EINVAL; + do { err = m5602_read_bridge(sd, M5602_XB_I2C_STATUS, i2c_data); } while ((*i2c_data & I2C_BUSY) && !err); + if (err < 0) + goto out; err = m5602_write_bridge(sd, M5602_XB_I2C_DEV_ADDR, sd->sensor->i2c_slave_id); @@ -98,13 +103,19 @@ int m5602_read_sensor(struct sd *sd, const u8 address, if (err < 0) goto out; - err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x10 + len); - if (err < 0) - goto out; + if (sd->sensor->i2c_regW == 1) { + err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, len); + if (err < 0) + goto out; - err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x08); - if (err < 0) - goto out; + err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x08); + if (err < 0) + goto out; + } else { + err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x18 + len); + if (err < 0) + goto out; + } for (i = 0; (i < len) && !err; i++) { err = m5602_read_bridge(sd, M5602_XB_I2C_DATA, &(i2c_data[i])); |