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path: root/drivers/media/video/gspca/stk014.c
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Diffstat (limited to 'drivers/media/video/gspca/stk014.c')
-rw-r--r--drivers/media/video/gspca/stk014.c86
1 files changed, 41 insertions, 45 deletions
diff --git a/drivers/media/video/gspca/stk014.c b/drivers/media/video/gspca/stk014.c
index d676cd16aa7..c78ee0d3e59 100644
--- a/drivers/media/video/gspca/stk014.c
+++ b/drivers/media/video/gspca/stk014.c
@@ -23,8 +23,8 @@
#include "gspca.h"
#include "jpeg.h"
-#define DRIVER_VERSION_NUMBER KERNEL_VERSION(2, 1, 5)
-static const char version[] = "2.1.5";
+#define DRIVER_VERSION_NUMBER KERNEL_VERSION(2, 1, 7)
+static const char version[] = "2.1.7";
MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>");
MODULE_DESCRIPTION("Syntek DV4000 (STK014) USB Camera Driver");
@@ -127,7 +127,7 @@ static struct v4l2_pix_format vga_mode[] = {
/* -- read a register -- */
static int reg_r(struct gspca_dev *gspca_dev,
- __u16 index, __u8 *buf)
+ __u16 index)
{
struct usb_device *dev = gspca_dev->dev;
int ret;
@@ -137,11 +137,13 @@ static int reg_r(struct gspca_dev *gspca_dev,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0x00,
index,
- buf, 1,
+ gspca_dev->usb_buf, 1,
500);
- if (ret < 0)
+ if (ret < 0) {
PDEBUG(D_ERR, "reg_r err %d", ret);
- return ret;
+ return ret;
+ }
+ return gspca_dev->usb_buf[0];
}
/* -- write a register -- */
@@ -164,58 +166,55 @@ static int reg_w(struct gspca_dev *gspca_dev,
return ret;
}
-/* -- get a value -- */
+/* -- get a bulk value (4 bytes) -- */
static int rcv_val(struct gspca_dev *gspca_dev,
- int ads,
- int len)
+ int ads)
{
struct usb_device *dev = gspca_dev->dev;
int alen, ret;
- unsigned char bulk_buf[4];
reg_w(gspca_dev, 0x634, (ads >> 16) & 0xff);
reg_w(gspca_dev, 0x635, (ads >> 8) & 0xff);
reg_w(gspca_dev, 0x636, ads & 0xff);
reg_w(gspca_dev, 0x637, 0);
- reg_w(gspca_dev, 0x638, len & 0xff);
- reg_w(gspca_dev, 0x639, len >> 8);
+ reg_w(gspca_dev, 0x638, 4); /* len & 0xff */
+ reg_w(gspca_dev, 0x639, 0); /* len >> 8 */
reg_w(gspca_dev, 0x63a, 0);
reg_w(gspca_dev, 0x63b, 0);
reg_w(gspca_dev, 0x630, 5);
- if (len > sizeof bulk_buf)
- return -1;
ret = usb_bulk_msg(dev,
usb_rcvbulkpipe(dev, 5),
- bulk_buf,
- len,
+ gspca_dev->usb_buf,
+ 4, /* length */
&alen,
- 500); /* timeout in milliseconds */
+ 500); /* timeout in milliseconds */
return ret;
}
-/* -- send a value -- */
+/* -- send a bulk value -- */
static int snd_val(struct gspca_dev *gspca_dev,
int ads,
unsigned int val)
{
struct usb_device *dev = gspca_dev->dev;
int alen, ret;
- __u8 value, seq;
- unsigned char bulk_buf[4];
+ __u8 seq = 0;
if (ads == 0x003f08) {
- ret = reg_r(gspca_dev, 0x0704, &value);
+ ret = reg_r(gspca_dev, 0x0704);
if (ret < 0)
goto ko;
- ret = reg_r(gspca_dev, 0x0705, &seq);
+ ret = reg_r(gspca_dev, 0x0705);
if (ret < 0)
goto ko;
- ret = reg_r(gspca_dev, 0x0650, &value);
+ seq = ret; /* keep the sequence number */
+ ret = reg_r(gspca_dev, 0x0650);
if (ret < 0)
goto ko;
reg_w(gspca_dev, 0x654, seq);
- } else
+ } else {
reg_w(gspca_dev, 0x654, (ads >> 16) & 0xff);
+ }
reg_w(gspca_dev, 0x655, (ads >> 8) & 0xff);
reg_w(gspca_dev, 0x656, ads & 0xff);
reg_w(gspca_dev, 0x657, 0);
@@ -224,13 +223,13 @@ static int snd_val(struct gspca_dev *gspca_dev,
reg_w(gspca_dev, 0x65a, 0);
reg_w(gspca_dev, 0x65b, 0);
reg_w(gspca_dev, 0x650, 5);
- bulk_buf[0] = (val >> 24) & 0xff;
- bulk_buf[1] = (val >> 16) & 0xff;
- bulk_buf[2] = (val >> 8) & 0xff;
- bulk_buf[3] = val & 0xff;
+ gspca_dev->usb_buf[0] = val >> 24;
+ gspca_dev->usb_buf[1] = val >> 16;
+ gspca_dev->usb_buf[2] = val >> 8;
+ gspca_dev->usb_buf[3] = val;
ret = usb_bulk_msg(dev,
usb_sndbulkpipe(dev, 6),
- bulk_buf,
+ gspca_dev->usb_buf,
4,
&alen,
500); /* timeout in milliseconds */
@@ -303,7 +302,7 @@ static int sd_config(struct gspca_dev *gspca_dev,
cam->dev_name = (char *) id->driver_info;
cam->epaddr = 0x02;
gspca_dev->cam.cam_mode = vga_mode;
- gspca_dev->cam.nmodes = sizeof vga_mode / sizeof vga_mode[0];
+ gspca_dev->cam.nmodes = ARRAY_SIZE(vga_mode);
sd->brightness = BRIGHTNESS_DEF;
sd->contrast = CONTRAST_DEF;
sd->colors = COLOR_DEF;
@@ -314,16 +313,15 @@ static int sd_config(struct gspca_dev *gspca_dev,
/* this function is called at open time */
static int sd_open(struct gspca_dev *gspca_dev)
{
- __u8 value;
int ret;
/* check if the device responds */
usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
- ret = reg_r(gspca_dev, 0x0740, &value);
+ ret = reg_r(gspca_dev, 0x0740);
if (ret < 0)
return ret;
- if (value != 0xff) {
- PDEBUG(D_ERR|D_STREAM, "init reg: 0x%02x", value);
+ if (ret != 0xff) {
+ PDEBUG(D_ERR|D_STREAM, "init reg: 0x%02x", ret);
return -1;
}
return 0;
@@ -332,7 +330,6 @@ static int sd_open(struct gspca_dev *gspca_dev)
/* -- start the camera -- */
static void sd_start(struct gspca_dev *gspca_dev)
{
- __u8 dum;
int ret, value;
/* work on alternate 1 */
@@ -355,11 +352,11 @@ static void sd_start(struct gspca_dev *gspca_dev)
gspca_dev->iface, gspca_dev->alt);
goto out;
}
- ret = reg_r(gspca_dev, 0x0630, &dum);
+ ret = reg_r(gspca_dev, 0x0630);
if (ret < 0)
goto out;
- rcv_val(gspca_dev, 0x000020, 4); /* << (value ff ff ff ff) */
- ret = reg_r(gspca_dev, 0x0650, &dum);
+ rcv_val(gspca_dev, 0x000020); /* << (value ff ff ff ff) */
+ ret = reg_r(gspca_dev, 0x0650);
if (ret < 0)
goto out;
snd_val(gspca_dev, 0x000020, 0xffffffff);
@@ -389,14 +386,13 @@ out:
static void sd_stopN(struct gspca_dev *gspca_dev)
{
struct usb_device *dev = gspca_dev->dev;
- __u8 value;
set_par(gspca_dev, 0x02000000);
set_par(gspca_dev, 0x02000000);
usb_set_interface(dev, gspca_dev->iface, 1);
- reg_r(gspca_dev, 0x0630, &value);
- rcv_val(gspca_dev, 0x000020, 4); /* << (value ff ff ff ff) */
- reg_r(gspca_dev, 0x0650, &value);
+ reg_r(gspca_dev, 0x0630);
+ rcv_val(gspca_dev, 0x000020); /* << (value ff ff ff ff) */
+ reg_r(gspca_dev, 0x0650);
snd_val(gspca_dev, 0x000020, 0xffffffff);
reg_w(gspca_dev, 0x0620, 0);
reg_w(gspca_dev, 0x0630, 0);
@@ -538,10 +534,10 @@ static int sd_querymenu(struct gspca_dev *gspca_dev,
}
/* sub-driver description */
-static struct sd_desc sd_desc = {
+static const struct sd_desc sd_desc = {
.name = MODULE_NAME,
.ctrls = sd_ctrls,
- .nctrls = sizeof sd_ctrls / sizeof sd_ctrls[0],
+ .nctrls = ARRAY_SIZE(sd_ctrls),
.config = sd_config,
.open = sd_open,
.start = sd_start,
@@ -554,7 +550,7 @@ static struct sd_desc sd_desc = {
/* -- module initialisation -- */
#define DVNM(name) .driver_info = (kernel_ulong_t) name
-static __devinitdata struct usb_device_id device_table[] = {
+static const __devinitdata struct usb_device_id device_table[] = {
{USB_DEVICE(0x05e1, 0x0893), DVNM("Syntek DV4000")},
{}
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 03:09:06 +0000