diff options
Diffstat (limited to 'drivers/media/video/et61x251/et61x251_core.c')
| -rw-r--r-- | drivers/media/video/et61x251/et61x251_core.c | 157 |
1 files changed, 78 insertions, 79 deletions
diff --git a/drivers/media/video/et61x251/et61x251_core.c b/drivers/media/video/et61x251/et61x251_core.c index d19d73b81ede..06b6a3ae06c4 100644 --- a/drivers/media/video/et61x251/et61x251_core.c +++ b/drivers/media/video/et61x251/et61x251_core.c @@ -227,7 +227,7 @@ int et61x251_write_reg(struct et61x251_device* cam, u8 value, u16 index) } -int et61x251_read_reg(struct et61x251_device* cam, u16 index) +static int et61x251_read_reg(struct et61x251_device* cam, u16 index) { struct usb_device* udev = cam->usbdev; u8* buff = cam->control_buffer; @@ -269,73 +269,6 @@ et61x251_i2c_wait(struct et61x251_device* cam, int -et61x251_i2c_try_read(struct et61x251_device* cam, - const struct et61x251_sensor* sensor, u8 address) -{ - struct usb_device* udev = cam->usbdev; - u8* data = cam->control_buffer; - int err = 0, res; - - data[0] = address; - data[1] = cam->sensor.i2c_slave_id; - data[2] = cam->sensor.rsta | 0x10; - data[3] = !(et61x251_read_reg(cam, 0x8b) & 0x02); - res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x00, 0x41, - 0, 0x88, data, 4, ET61X251_CTRL_TIMEOUT); - if (res < 0) - err += res; - - err += et61x251_i2c_wait(cam, sensor); - - res = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x00, 0xc1, - 0, 0x80, data, 8, ET61X251_CTRL_TIMEOUT); - if (res < 0) - err += res; - - if (err) - DBG(3, "I2C read failed for %s image sensor", sensor->name); - - PDBGG("I2C read: address 0x%02X, value: 0x%02X", address, data[0]); - - return err ? -1 : (int)data[0]; -} - - -int -et61x251_i2c_try_write(struct et61x251_device* cam, - const struct et61x251_sensor* sensor, u8 address, - u8 value) -{ - struct usb_device* udev = cam->usbdev; - u8* data = cam->control_buffer; - int err = 0, res; - - data[0] = address; - data[1] = cam->sensor.i2c_slave_id; - data[2] = cam->sensor.rsta | 0x12; - res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x00, 0x41, - 0, 0x88, data, 3, ET61X251_CTRL_TIMEOUT); - if (res < 0) - err += res; - - data[0] = value; - res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x00, 0x41, - 0, 0x80, data, 1, ET61X251_CTRL_TIMEOUT); - if (res < 0) - err += res; - - err += et61x251_i2c_wait(cam, sensor); - - if (err) - DBG(3, "I2C write failed for %s image sensor", sensor->name); - - PDBGG("I2C write: address 0x%02X, value: 0x%02X", address, value); - - return err ? -1 : 0; -} - - -int et61x251_i2c_raw_write(struct et61x251_device* cam, u8 n, u8 data1, u8 data2, u8 data3, u8 data4, u8 data5, u8 data6, u8 data7, u8 data8, u8 address) @@ -387,17 +320,6 @@ et61x251_i2c_raw_write(struct et61x251_device* cam, u8 n, u8 data1, u8 data2, } -int et61x251_i2c_read(struct et61x251_device* cam, u8 address) -{ - return et61x251_i2c_try_read(cam, &cam->sensor, address); -} - - -int et61x251_i2c_write(struct et61x251_device* cam, u8 address, u8 value) -{ - return et61x251_i2c_try_write(cam, &cam->sensor, address, value); -} - /*****************************************************************************/ static void et61x251_urb_complete(struct urb *urb) @@ -675,6 +597,83 @@ static int et61x251_stream_interrupt(struct et61x251_device* cam) /*****************************************************************************/ #ifdef CONFIG_VIDEO_ADV_DEBUG + +static int et61x251_i2c_try_read(struct et61x251_device* cam, + const struct et61x251_sensor* sensor, + u8 address) +{ + struct usb_device* udev = cam->usbdev; + u8* data = cam->control_buffer; + int err = 0, res; + + data[0] = address; + data[1] = cam->sensor.i2c_slave_id; + data[2] = cam->sensor.rsta | 0x10; + data[3] = !(et61x251_read_reg(cam, 0x8b) & 0x02); + res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x00, 0x41, + 0, 0x88, data, 4, ET61X251_CTRL_TIMEOUT); + if (res < 0) + err += res; + + err += et61x251_i2c_wait(cam, sensor); + + res = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x00, 0xc1, + 0, 0x80, data, 8, ET61X251_CTRL_TIMEOUT); + if (res < 0) + err += res; + + if (err) + DBG(3, "I2C read failed for %s image sensor", sensor->name); + + PDBGG("I2C read: address 0x%02X, value: 0x%02X", address, data[0]); + + return err ? -1 : (int)data[0]; +} + + +static int et61x251_i2c_try_write(struct et61x251_device* cam, + const struct et61x251_sensor* sensor, + u8 address, u8 value) +{ + struct usb_device* udev = cam->usbdev; + u8* data = cam->control_buffer; + int err = 0, res; + + data[0] = address; + data[1] = cam->sensor.i2c_slave_id; + data[2] = cam->sensor.rsta | 0x12; + res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x00, 0x41, + 0, 0x88, data, 3, ET61X251_CTRL_TIMEOUT); + if (res < 0) + err += res; + + data[0] = value; + res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x00, 0x41, + 0, 0x80, data, 1, ET61X251_CTRL_TIMEOUT); + if (res < 0) + err += res; + + err += et61x251_i2c_wait(cam, sensor); + + if (err) + DBG(3, "I2C write failed for %s image sensor", sensor->name); + + PDBGG("I2C write: address 0x%02X, value: 0x%02X", address, value); + + return err ? -1 : 0; +} + +static int et61x251_i2c_read(struct et61x251_device* cam, u8 address) +{ + return et61x251_i2c_try_read(cam, &cam->sensor, address); +} + +static int et61x251_i2c_write(struct et61x251_device* cam, + u8 address, u8 value) +{ + return et61x251_i2c_try_write(cam, &cam->sensor, address, value); +} + static u8 et61x251_strtou8(const char* buff, size_t len, ssize_t* count) { char str[5]; |