summaryrefslogtreecommitdiff
path: root/drivers/media
diff options
context:
space:
mode:
authorErik Andr?n <erik.andren@gmail.com>2009-01-03 15:10:11 (GMT)
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-04-07 00:44:46 (GMT)
commitd9c700d415f05760f0129f798223cb4ac6a46d4b (patch)
treedf82be24a75ad853e69a5304a096eb7962b46ded /drivers/media
parent1a3dd5d91a46417e887e285e6d7ceb68097a8535 (diff)
downloadlinux-d9c700d415f05760f0129f798223cb4ac6a46d4b.tar.xz
V4L/DVB (11423): gspca - m5602-ov9650: Add a disconnect hook, setup a ctrl cache ctrl.
Reading and writing to a register doesn't always work reliably. Add a cache and ensure that it is deallocated properly upon module disconnect. Signed-off-by: Erik Andr?n <erik.andren@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/video/gspca/m5602/m5602_bridge.h3
-rw-r--r--drivers/media/video/gspca/m5602/m5602_core.c13
-rw-r--r--drivers/media/video/gspca/m5602/m5602_ov9650.c42
-rw-r--r--drivers/media/video/gspca/m5602/m5602_ov9650.h2
-rw-r--r--drivers/media/video/gspca/m5602/m5602_sensor.h3
5 files changed, 54 insertions, 9 deletions
diff --git a/drivers/media/video/gspca/m5602/m5602_bridge.h b/drivers/media/video/gspca/m5602/m5602_bridge.h
index de76a16..8f1cea6 100644
--- a/drivers/media/video/gspca/m5602/m5602_bridge.h
+++ b/drivers/media/video/gspca/m5602/m5602_bridge.h
@@ -117,6 +117,9 @@ struct sd {
struct sd_desc *desc;
+ /* Sensor private data */
+ void *sensor_priv;
+
/* The current frame's id, used to detect frame boundaries */
u8 frame_id;
diff --git a/drivers/media/video/gspca/m5602/m5602_core.c b/drivers/media/video/gspca/m5602/m5602_core.c
index 0d84a12..1aac298 100644
--- a/drivers/media/video/gspca/m5602/m5602_core.c
+++ b/drivers/media/video/gspca/m5602/m5602_core.c
@@ -362,6 +362,17 @@ static int m5602_probe(struct usb_interface *intf,
THIS_MODULE);
}
+void m5602_disconnect(struct usb_interface *intf)
+{
+ struct gspca_dev *gspca_dev = usb_get_intfdata(intf);
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ if (sd->sensor->disconnect)
+ sd->sensor->disconnect(sd);
+
+ gspca_disconnect(intf);
+}
+
static struct usb_driver sd_driver = {
.name = MODULE_NAME,
.id_table = m5602_table,
@@ -370,7 +381,7 @@ static struct usb_driver sd_driver = {
.suspend = gspca_suspend,
.resume = gspca_resume,
#endif
- .disconnect = gspca_disconnect
+ .disconnect = m5602_disconnect
};
/* -- module insert / remove -- */
diff --git a/drivers/media/video/gspca/m5602/m5602_ov9650.c b/drivers/media/video/gspca/m5602/m5602_ov9650.c
index 15288a1..3990265 100644
--- a/drivers/media/video/gspca/m5602/m5602_ov9650.c
+++ b/drivers/media/video/gspca/m5602/m5602_ov9650.c
@@ -220,6 +220,7 @@ int ov9650_probe(struct sd *sd)
{
int err = 0;
u8 prod_id = 0, ver_id = 0, i;
+ s32 *sensor_settings;
if (force_sensor) {
if (force_sensor == OV9650_SENSOR) {
@@ -238,9 +239,10 @@ int ov9650_probe(struct sd *sd)
u8 data = preinit_ov9650[i][2];
if (preinit_ov9650[i][0] == SENSOR)
err = m5602_write_sensor(sd,
- preinit_ov9650[i][1], &data, 1);
+ preinit_ov9650[i][1], &data, 1);
else
- err = m5602_write_bridge(sd, preinit_ov9650[i][1], data);
+ err = m5602_write_bridge(sd,
+ preinit_ov9650[i][1], data);
}
if (err < 0)
@@ -260,10 +262,21 @@ int ov9650_probe(struct sd *sd)
return -ENODEV;
sensor_found:
+
+ sensor_settings = kmalloc(
+ ARRAY_SIZE(ov9650_ctrls) * sizeof(s32), GFP_KERNEL);
+ if (!sensor_settings)
+ return -ENOMEM;
+
sd->gspca_dev.cam.cam_mode = ov9650_modes;
sd->gspca_dev.cam.nmodes = ARRAY_SIZE(ov9650_modes);
sd->desc->ctrls = ov9650_ctrls;
sd->desc->nctrls = ARRAY_SIZE(ov9650_ctrls);
+
+ for (i = 0; i < ARRAY_SIZE(ov9650_ctrls); i++)
+ sensor_settings[i] = ov9650_ctrls[i].qctrl.default_value;
+ sd->sensor_priv = sensor_settings;
+
return 0;
}
@@ -324,7 +337,8 @@ int ov9650_start(struct sd *sd)
if (err < 0)
return err;
- err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, ((ver_offs >> 8) & 0xff));
+ err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA,
+ ((ver_offs >> 8) & 0xff));
if (err < 0)
return err;
@@ -344,13 +358,13 @@ int ov9650_start(struct sd *sd)
if (err < 0)
return err;
- for (i = 0; i < 2 && !err; i++) {
+ for (i = 0; i < 2 && !err; i++)
err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, 0);
- }
if (err < 0)
return err;
- err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, (hor_offs >> 8) & 0xff);
+ err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA,
+ (hor_offs >> 8) & 0xff);
if (err < 0)
return err;
@@ -358,11 +372,13 @@ int ov9650_start(struct sd *sd)
if (err < 0)
return err;
- err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, ((width + hor_offs) >> 8) & 0xff);
+ err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA,
+ ((width + hor_offs) >> 8) & 0xff);
if (err < 0)
return err;
- err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, ((width + hor_offs) & 0xff));
+ err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA,
+ ((width + hor_offs) & 0xff));
if (err < 0)
return err;
@@ -431,6 +447,16 @@ int ov9650_power_down(struct sd *sd)
return err;
}
+void ov9650_disconnect(struct sd *sd)
+{
+ ov9650_stop(sd);
+ ov9650_power_down(sd);
+
+ sd->sensor = NULL;
+
+ kfree(sd->sensor_priv);
+}
+
int ov9650_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
diff --git a/drivers/media/video/gspca/m5602/m5602_ov9650.h b/drivers/media/video/gspca/m5602/m5602_ov9650.h
index eafe421..1f27a85 100644
--- a/drivers/media/video/gspca/m5602/m5602_ov9650.h
+++ b/drivers/media/video/gspca/m5602/m5602_ov9650.h
@@ -138,6 +138,7 @@ int ov9650_init(struct sd *sd);
int ov9650_start(struct sd *sd);
int ov9650_stop(struct sd *sd);
int ov9650_power_down(struct sd *sd);
+void ov9650_disconnect(struct sd *sd);
int ov9650_set_exposure(struct gspca_dev *gspca_dev, __s32 val);
int ov9650_get_exposure(struct gspca_dev *gspca_dev, __s32 *val);
@@ -167,6 +168,7 @@ const static struct m5602_sensor ov9650 = {
.start = ov9650_start,
.stop = ov9650_stop,
.power_down = ov9650_power_down,
+ .disconnect = ov9650_disconnect,
};
static const unsigned char preinit_ov9650[][3] =
diff --git a/drivers/media/video/gspca/m5602/m5602_sensor.h b/drivers/media/video/gspca/m5602/m5602_sensor.h
index 5c8fb7a..0d30269 100644
--- a/drivers/media/video/gspca/m5602/m5602_sensor.h
+++ b/drivers/media/video/gspca/m5602/m5602_sensor.h
@@ -59,6 +59,9 @@ struct m5602_sensor {
/* Executed when the camera ends to send data */
int (*stop)(struct sd *sd);
+ /* Executed when the device is disconnected */
+ void (*disconnect)(struct sd *sd);
+
/* Performs a power down sequence */
int (*power_down)(struct sd *sd);
};