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V4L/DVB (10046): gspca - ov534: Use the gspca usb buf for usb control messages.

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Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Jean-Francois Moine 2008-12-29 06:19:43 -03:00 committed by Mauro Carvalho Chehab
parent f367b85d9a
commit 15f64864e3
1 changed files with 53 additions and 51 deletions
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104
drivers/media/video/gspca/ov534.c
View file

@ -63,65 +63,66 @@ static struct v4l2_pix_format vga_mode[] = {
.priv = 0},
};
static void ov534_reg_write(struct usb_device *udev, u16 reg, u8 val)
static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val)
{
u8 data = val;
struct usb_device *udev = gspca_dev->dev;
int ret;
PDEBUG(D_USBO, "reg=0x%04x, val=0%02x", reg, val);
gspca_dev->usb_buf[0] = val;
ret = usb_control_msg(udev,
usb_sndctrlpipe(udev, 0),
0x1,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0x0, reg, &data, 1, CTRL_TIMEOUT);
0x0, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
if (ret < 0)
PDEBUG(D_ERR, "write failed");
}
static u8 ov534_reg_read(struct usb_device *udev, u16 reg)
static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg)
{
u8 data;
struct usb_device *udev = gspca_dev->dev;
int ret;
ret = usb_control_msg(udev,
usb_rcvctrlpipe(udev, 0),
0x1,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0x0, reg, &data, 1, CTRL_TIMEOUT);
PDEBUG(D_USBI, "reg=0x%04x, data=0x%02x", reg, data);
0x0, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
PDEBUG(D_USBI, "reg=0x%04x, data=0x%02x", reg, gspca_dev->usb_buf[0]);
if (ret < 0)
PDEBUG(D_ERR, "read failed");
return data;
return gspca_dev->usb_buf[0];
}
/* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
* (direction and output)? */
static void ov534_set_led(struct usb_device *udev, int status)
static void ov534_set_led(struct gspca_dev *gspca_dev, int status)
{
u8 data;
PDEBUG(D_CONF, "led status: %d", status);
data = ov534_reg_read(udev, 0x21);
data = ov534_reg_read(gspca_dev, 0x21);
data |= 0x80;
ov534_reg_write(udev, 0x21, data);
ov534_reg_write(gspca_dev, 0x21, data);
data = ov534_reg_read(udev, 0x23);
data = ov534_reg_read(gspca_dev, 0x23);
if (status)
data |= 0x80;
else
data &= ~(0x80);
ov534_reg_write(udev, 0x23, data);
ov534_reg_write(gspca_dev, 0x23, data);
}
static int sccb_check_status(struct usb_device *udev)
static int sccb_check_status(struct gspca_dev *gspca_dev)
{
u8 data;
int i;
for (i = 0; i < 5; i++) {
data = ov534_reg_read(udev, OV534_REG_STATUS);
data = ov534_reg_read(gspca_dev, OV534_REG_STATUS);
switch (data) {
case 0x00:
@ -138,30 +139,30 @@ static int sccb_check_status(struct usb_device *udev)
return 0;
}
static void sccb_reg_write(struct usb_device *udev, u16 reg, u8 val)
static void sccb_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val)
{
PDEBUG(D_USBO, "reg: 0x%04x, val: 0x%02x", reg, val);
ov534_reg_write(udev, OV534_REG_SUBADDR, reg);
ov534_reg_write(udev, OV534_REG_WRITE, val);
ov534_reg_write(udev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
ov534_reg_write(gspca_dev, OV534_REG_WRITE, val);
ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
if (!sccb_check_status(udev))
if (!sccb_check_status(gspca_dev))
PDEBUG(D_ERR, "sccb_reg_write failed");
}
#ifdef GSPCA_DEBUG
static u8 sccb_reg_read(struct usb_device *udev, u16 reg)
static u8 sccb_reg_read(struct gspca_dev *gspca_dev, u16 reg)
{
ov534_reg_write(udev, OV534_REG_SUBADDR, reg);
ov534_reg_write(udev, OV534_REG_OPERATION, OV534_OP_WRITE_2);
if (!sccb_check_status(udev))
ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_2);
if (!sccb_check_status(gspca_dev))
PDEBUG(D_ERR, "sccb_reg_read failed 1");
ov534_reg_write(udev, OV534_REG_OPERATION, OV534_OP_READ_2);
if (!sccb_check_status(udev))
ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2);
if (!sccb_check_status(gspca_dev))
PDEBUG(D_ERR, "sccb_reg_read failed 2");
return ov534_reg_read(udev, OV534_REG_READ);
return ov534_reg_read(gspca_dev, OV534_REG_READ);
}
#endif
@ -318,26 +319,26 @@ static void ov534_set_frame_rate(struct gspca_dev *gspca_dev)
switch (fr) {
case 50:
sccb_reg_write(gspca_dev->dev, 0x11, 0x01);
sccb_reg_write(gspca_dev->dev, 0x0d, 0x41);
ov534_reg_write(gspca_dev->dev, 0xe5, 0x02);
sccb_reg_write(gspca_dev, 0x11, 0x01);
sccb_reg_write(gspca_dev, 0x0d, 0x41);
ov534_reg_write(gspca_dev, 0xe5, 0x02);
break;
case 40:
sccb_reg_write(gspca_dev->dev, 0x11, 0x02);
sccb_reg_write(gspca_dev->dev, 0x0d, 0xc1);
ov534_reg_write(gspca_dev->dev, 0xe5, 0x04);
sccb_reg_write(gspca_dev, 0x11, 0x02);
sccb_reg_write(gspca_dev, 0x0d, 0xc1);
ov534_reg_write(gspca_dev, 0xe5, 0x04);
break;
/* case 30: */
default:
fr = 30;
sccb_reg_write(gspca_dev->dev, 0x11, 0x04);
sccb_reg_write(gspca_dev->dev, 0x0d, 0x81);
ov534_reg_write(gspca_dev->dev, 0xe5, 0x02);
sccb_reg_write(gspca_dev, 0x11, 0x04);
sccb_reg_write(gspca_dev, 0x0d, 0x81);
ov534_reg_write(gspca_dev, 0xe5, 0x02);
break;
case 15:
sccb_reg_write(gspca_dev->dev, 0x11, 0x03);
sccb_reg_write(gspca_dev->dev, 0x0d, 0x41);
ov534_reg_write(gspca_dev->dev, 0xe5, 0x04);
sccb_reg_write(gspca_dev, 0x11, 0x03);
sccb_reg_write(gspca_dev, 0x0d, 0x41);
ov534_reg_write(gspca_dev, 0xe5, 0x04);
break;
}
@ -346,27 +347,28 @@ static void ov534_set_frame_rate(struct gspca_dev *gspca_dev)
}
/* setup method */
static void ov534_setup(struct usb_device *udev)
static void ov534_setup(struct gspca_dev *gspca_dev)
{
int i;
/* Initialize bridge chip */
for (i = 0; i < ARRAY_SIZE(ov534_reg_initdata); i++)
ov534_reg_write(udev, ov534_reg_initdata[i][0],
ov534_reg_write(gspca_dev, ov534_reg_initdata[i][0],
ov534_reg_initdata[i][1]);
PDEBUG(D_PROBE, "sensor is ov%02x%02x",
sccb_reg_read(udev, 0x0a), sccb_reg_read(udev, 0x0b));
sccb_reg_read(gspca_dev, 0x0a),
sccb_reg_read(gspca_dev, 0x0b));
ov534_set_led(udev, 1);
ov534_set_led(gspca_dev, 1);
/* Initialize sensor */
for (i = 0; i < ARRAY_SIZE(ov772x_reg_initdata); i++)
sccb_reg_write(udev, ov772x_reg_initdata[i][0],
sccb_reg_write(gspca_dev, ov772x_reg_initdata[i][0],
ov772x_reg_initdata[i][1]);
ov534_reg_write(udev, 0xe0, 0x09);
ov534_set_led(udev, 0);
ov534_reg_write(gspca_dev, 0xe0, 0x09);
ov534_set_led(gspca_dev, 0);
}
/* this function is called at probe time */
@ -390,7 +392,7 @@ static int sd_config(struct gspca_dev *gspca_dev,
/* this function is called at probe and resume time */
static int sd_init(struct gspca_dev *gspca_dev)
{
ov534_setup(gspca_dev->dev);
ov534_setup(gspca_dev);
ov534_set_frame_rate(gspca_dev);
return 0;
@ -399,8 +401,8 @@ static int sd_init(struct gspca_dev *gspca_dev)
static int sd_start(struct gspca_dev *gspca_dev)
{
/* start streaming data */
ov534_set_led(gspca_dev->dev, 1);
ov534_reg_write(gspca_dev->dev, 0xe0, 0x00);
ov534_set_led(gspca_dev, 1);
ov534_reg_write(gspca_dev, 0xe0, 0x00);
return 0;
}
@ -408,8 +410,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
static void sd_stopN(struct gspca_dev *gspca_dev)
{
/* stop streaming data */
ov534_reg_write(gspca_dev->dev, 0xe0, 0x09);
ov534_set_led(gspca_dev->dev, 0);
ov534_reg_write(gspca_dev, 0xe0, 0x09);
ov534_set_led(gspca_dev, 0);
}
/* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */