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authorLukas Karas <lukas.karas@centrum.cz>2008-12-28 14:09:21 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-04-06 21:44:37 -0300
commit4a7581f084ce308a448f4940ed2c664e9e3d78a1 (patch)
tree6ebb4b8f8bfc41a938e111cd42c7377253d126c7 /drivers/media/video
parentdc913258ffb3dd90d6bafdd9111565777b5aad08 (diff)
V4L/DVB (11408): gspca - m5602-s5k83a: Add led support to the s5k83a sensor.
This patch toggles the led seen on many laptops having a m5602 connected to a Samsung s5k83a sensor. Signed-off-by: Lukas Karas <lukas.karas@centrum.cz> Signed-off-by: Erik Andr?n <erik.andren@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video')
-rw-r--r--drivers/media/video/gspca/m5602/m5602_core.c6
-rw-r--r--drivers/media/video/gspca/m5602/m5602_s5k83a.c29
-rw-r--r--drivers/media/video/gspca/m5602/m5602_s5k83a.h10
-rw-r--r--drivers/media/video/gspca/m5602/m5602_sensor.h3
4 files changed, 45 insertions, 3 deletions
diff --git a/drivers/media/video/gspca/m5602/m5602_core.c b/drivers/media/video/gspca/m5602/m5602_core.c
index 9f833b4ec52..bae7aa6f0f8 100644
--- a/drivers/media/video/gspca/m5602/m5602_core.c
+++ b/drivers/media/video/gspca/m5602/m5602_core.c
@@ -309,7 +309,11 @@ static void m5602_urb_complete(struct gspca_dev *gspca_dev,
static void m5602_stop_transfer(struct gspca_dev *gspca_dev)
{
- /* Is there are a command to stop a data transfer? */
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ /* Run the sensor specific end transfer sequence */
+ if (sd->sensor->stop)
+ sd->sensor->stop(sd);
}
/* sub-driver description, the ctrl and nctrl is filled at probe time */
diff --git a/drivers/media/video/gspca/m5602/m5602_s5k83a.c b/drivers/media/video/gspca/m5602/m5602_s5k83a.c
index 9bea347b9ef..5ce69d74dac 100644
--- a/drivers/media/video/gspca/m5602/m5602_s5k83a.c
+++ b/drivers/media/video/gspca/m5602/m5602_s5k83a.c
@@ -108,6 +108,16 @@ int s5k83a_init(struct sd *sd)
return (err < 0) ? err : 0;
}
+int s5k83a_start(struct sd *sd)
+{
+ return s5k83a_set_led_indication(sd, 1);
+}
+
+int s5k83a_stop(struct sd *sd)
+{
+ return s5k83a_set_led_indication(sd, 0);
+}
+
int s5k83a_power_down(struct sd *sd)
{
return 0;
@@ -345,3 +355,22 @@ int s5k83a_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
return err;
}
+
+int s5k83a_set_led_indication(struct sd *sd, u8 val)
+{
+ int err = 0;
+ u8 data[1];
+
+ err = m5602_read_bridge(sd, M5602_XB_GPIO_DAT, data);
+ if (err < 0)
+ return err;
+
+ if (val)
+ data[0] = data[0] | S5K83A_GPIO_LED_MASK;
+ else
+ data[0] = data[0] & ~S5K83A_GPIO_LED_MASK;
+
+ err = m5602_write_bridge(sd, M5602_XB_GPIO_DAT, data[0]);
+
+ return (err < 0) ? err : 0;
+}
diff --git a/drivers/media/video/gspca/m5602/m5602_s5k83a.h b/drivers/media/video/gspca/m5602/m5602_s5k83a.h
index 05ccb5b57a8..40ed14165c2 100644
--- a/drivers/media/video/gspca/m5602/m5602_s5k83a.h
+++ b/drivers/media/video/gspca/m5602/m5602_s5k83a.h
@@ -34,7 +34,7 @@
#define S5K83A_DEFAULT_GAIN 0x00
#define S5K83A_MAXIMUM_GAIN 0x3c
#define S5K83A_FLIP_MASK 0x10
-
+#define S5K83A_GPIO_LED_MASK 0x10
/*****************************************************************************/
@@ -44,8 +44,12 @@ extern int dump_sensor;
int s5k83a_probe(struct sd *sd);
int s5k83a_init(struct sd *sd);
+int s5k83a_start(struct sd *sd);
+int s5k83a_stop(struct sd *sd);
int s5k83a_power_down(struct sd *sd);
+int s5k83a_set_led_indication(struct sd *sd, u8 val);
+
int s5k83a_set_brightness(struct gspca_dev *gspca_dev, __s32 val);
int s5k83a_get_brightness(struct gspca_dev *gspca_dev, __s32 *val);
int s5k83a_set_whiteness(struct gspca_dev *gspca_dev, __s32 val);
@@ -61,6 +65,8 @@ static struct m5602_sensor s5k83a = {
.name = "S5K83A",
.probe = s5k83a_probe,
.init = s5k83a_init,
+ .start = s5k83a_start,
+ .stop = s5k83a_stop,
.power_down = s5k83a_power_down,
.i2c_slave_id = 0x5a,
.i2c_regW = 2,
@@ -381,7 +387,7 @@ static const unsigned char init_s5k83a[][4] =
{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00},
{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xf0, 0x00},
{BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00},
- {BRIDGE, M5602_XB_GPIO_DAT, 0x1c, 0x00},
+ {BRIDGE, M5602_XB_GPIO_DAT, 0x08, 0x00},
{BRIDGE, M5602_XB_GPIO_EN_H, 0x06, 0x00},
{BRIDGE, M5602_XB_GPIO_DIR_H, 0x06, 0x00},
{BRIDGE, M5602_XB_GPIO_DAT_H, 0x00, 0x00},
diff --git a/drivers/media/video/gspca/m5602/m5602_sensor.h b/drivers/media/video/gspca/m5602/m5602_sensor.h
index 261623f0da4..8eed4cc0b41 100644
--- a/drivers/media/video/gspca/m5602/m5602_sensor.h
+++ b/drivers/media/video/gspca/m5602/m5602_sensor.h
@@ -61,6 +61,9 @@ struct m5602_sensor {
/* Executed when the camera starts to send data */
int (*start)(struct sd *sd);
+ /* Executed when the camera ends to send data */
+ int (*stop)(struct sd *sd);
+
/* Performs a power down sequence */
int (*power_down)(struct sd *sd);