#include "gspca.h"
-#define DRIVER_VERSION_NUMBER KERNEL_VERSION(2, 1, 4)
-static const char version[] = "2.1.4";
-
MODULE_AUTHOR("Hans de Goede <j.w.r.degoede@hhs.nl>");
MODULE_DESCRIPTION("Pixart PAC207");
MODULE_LICENSE("GPL");
},
};
-static struct cam_mode sif_mode[] = {
- {V4L2_PIX_FMT_PAC207, 176, 144, 1},
- {V4L2_PIX_FMT_PAC207, 352, 288, 0},
+static struct v4l2_pix_format sif_mode[] = {
+ {176, 144, V4L2_PIX_FMT_PAC207, V4L2_FIELD_NONE,
+ .bytesperline = 176,
+ .sizeimage = (176 + 2) * 144,
+ /* uncompressed, add 2 bytes / line for line header */
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 1},
+ {352, 288, V4L2_PIX_FMT_PAC207, V4L2_FIELD_NONE,
+ .bytesperline = 352,
+ /* compressed, but only when needed (not compressed
+ when the framerate is low) */
+ .sizeimage = (352 + 2) * 288,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 0},
};
static const __u8 pac207_sensor_init[][8] = {
static const unsigned char pac207_sof_marker[5] =
{ 0xff, 0xff, 0x00, 0xff, 0x96 };
-int pac207_write_regs(struct gspca_dev *gspca_dev, u16 index,
+static int pac207_write_regs(struct gspca_dev *gspca_dev, u16 index,
const u8 *buffer, u16 length)
{
struct usb_device *udev = gspca_dev->dev;
int err;
- u8 kbuf[8];
- memcpy(kbuf, buffer, length);
+ memcpy(gspca_dev->usb_buf, buffer, length);
err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x01,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
- 0x00, index, kbuf, length, PAC207_CTRL_TIMEOUT);
+ 0x00, index,
+ gspca_dev->usb_buf, length, PAC207_CTRL_TIMEOUT);
if (err < 0)
PDEBUG(D_ERR,
"Failed to write registers to index 0x%04X, error %d)",
}
-int pac207_write_reg(struct gspca_dev *gspca_dev, u16 index, u16 value)
+static int pac207_write_reg(struct gspca_dev *gspca_dev, u16 index, u16 value)
{
struct usb_device *udev = gspca_dev->dev;
int err;
return err;
}
-
-int pac207_read_reg(struct gspca_dev *gspca_dev, u16 index)
+static int pac207_read_reg(struct gspca_dev *gspca_dev, u16 index)
{
struct usb_device *udev = gspca_dev->dev;
- u8 buff;
int res;
res = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x00,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
- 0x00, index, &buff, 1, PAC207_CTRL_TIMEOUT);
+ 0x00, index,
+ gspca_dev->usb_buf, 1, PAC207_CTRL_TIMEOUT);
if (res < 0) {
PDEBUG(D_ERR,
"Failed to read a register (index 0x%04X, error %d)",
return res;
}
- return buff;
+ return gspca_dev->usb_buf[0];
}
-
/* this function is called at probe time */
static int sd_config(struct gspca_dev *gspca_dev,
const struct usb_device_id *id)
" (vid/pid 0x%04X:0x%04X)", id->idVendor, id->idProduct);
cam = &gspca_dev->cam;
- cam->dev_name = (char *) id->driver_info;
cam->epaddr = 0x05;
cam->cam_mode = sif_mode;
cam->nmodes = ARRAY_SIZE(sif_mode);
{
}
-static int sd_get_buff_size_op(struct gspca_dev *gspca_dev, int mode)
-{
- switch (gspca_dev->cam.cam_mode[mode].width) {
- case 176: /* 176x144 */
- /* uncompressed, add 2 bytes / line for line header */
- return (176 + 2) * 144;
- case 352: /* 352x288 */
- /* compressed */
- return 352 * 288 / 2;
- }
- return -EIO; /* should never happen */
-}
-
-/* auto gain and exposure algorithm based on the knee algorithm described here:
- * <http://ytse.tricolour.net/docs/LowLightOptimization.html> */
static void pac207_do_auto_gain(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
- int i, steps, desired_avg_lum;
- int orig_gain = sd->gain;
- int orig_exposure = sd->exposure;
int avg_lum = atomic_read(&sd->avg_lum);
- if (!sd->autogain || avg_lum == -1)
+ if (avg_lum == -1)
return;
- if (sd->autogain_ignore_frames > 0) {
+ if (sd->autogain_ignore_frames > 0)
sd->autogain_ignore_frames--;
- return;
- }
-
- /* correct desired lumination for the configured brightness */
- desired_avg_lum = 100 + sd->brightness / 2;
-
- /* If we are of a multiple of deadzone, do multiple step to reach the
- desired lumination fast (with the risc of a slight overshoot) */
- steps = abs(desired_avg_lum - avg_lum) / PAC207_AUTOGAIN_DEADZONE;
-
- for (i = 0; i < steps; i++) {
- if (avg_lum > desired_avg_lum) {
- if (sd->gain > PAC207_GAIN_KNEE)
- sd->gain--;
- else if (sd->exposure > PAC207_EXPOSURE_KNEE)
- sd->exposure--;
- else if (sd->gain > PAC207_GAIN_DEFAULT)
- sd->gain--;
- else if (sd->exposure > PAC207_EXPOSURE_MIN)
- sd->exposure--;
- else if (sd->gain > PAC207_GAIN_MIN)
- sd->gain--;
- else
- break;
- } else {
- if (sd->gain < PAC207_GAIN_DEFAULT)
- sd->gain++;
- else if (sd->exposure < PAC207_EXPOSURE_KNEE)
- sd->exposure++;
- else if (sd->gain < PAC207_GAIN_KNEE)
- sd->gain++;
- else if (sd->exposure < PAC207_EXPOSURE_MAX)
- sd->exposure++;
- else if (sd->gain < PAC207_GAIN_MAX)
- sd->gain++;
- else
- break;
- }
- }
-
- if (sd->exposure != orig_exposure || sd->gain != orig_gain) {
- if (sd->exposure != orig_exposure)
- pac207_write_reg(gspca_dev, 0x0002, sd->exposure);
- if (sd->gain != orig_gain)
- pac207_write_reg(gspca_dev, 0x000e, sd->gain);
- pac207_write_reg(gspca_dev, 0x13, 0x01); /* load reg to sen */
- pac207_write_reg(gspca_dev, 0x1c, 0x01); /* not documented */
+ else if (gspca_auto_gain_n_exposure(gspca_dev, avg_lum,
+ 100 + sd->brightness / 2, PAC207_AUTOGAIN_DEADZONE,
+ PAC207_GAIN_KNEE, PAC207_EXPOSURE_KNEE))
sd->autogain_ignore_frames = PAC207_AUTOGAIN_IGNORE_FRAMES;
- }
}
static unsigned char *pac207_find_sof(struct gspca_dev *gspca_dev,
{
struct sd *sd = (struct sd *) gspca_dev;
- /* don't allow mucking with exposure when using autogain */
- if (sd->autogain)
- return -EINVAL;
-
sd->exposure = val;
if (gspca_dev->streaming)
setexposure(gspca_dev);
{
struct sd *sd = (struct sd *) gspca_dev;
- /* don't allow mucking with gain when using autogain */
- if (sd->autogain)
- return -EINVAL;
-
sd->gain = val;
if (gspca_dev->streaming)
setgain(gspca_dev);
.close = sd_close,
.dq_callback = pac207_do_auto_gain,
.pkt_scan = sd_pkt_scan,
- .get_buff_size = sd_get_buff_size_op,
};
/* -- module initialisation -- */
-#define DVNM(name) .driver_info = (kernel_ulong_t) name
static const __devinitdata struct usb_device_id device_table[] = {
- {USB_DEVICE(0x041e, 0x4028), DVNM("Creative Webcam Vista Plus")},
- {USB_DEVICE(0x093a, 0x2460), DVNM("Q-Tec Webcam 100")},
- {USB_DEVICE(0x093a, 0x2463), DVNM("Philips spc200nc pac207")},
- {USB_DEVICE(0x093a, 0x2464), DVNM("Labtec Webcam 1200")},
- {USB_DEVICE(0x093a, 0x2468), DVNM("PAC207")},
- {USB_DEVICE(0x093a, 0x2470), DVNM("Genius GF112")},
- {USB_DEVICE(0x093a, 0x2471), DVNM("Genius VideoCam GE111")},
- {USB_DEVICE(0x093a, 0x2472), DVNM("Genius VideoCam GE110")},
- {USB_DEVICE(0x2001, 0xf115), DVNM("D-Link DSB-C120")},
+ {USB_DEVICE(0x041e, 0x4028)},
+ {USB_DEVICE(0x093a, 0x2460)},
+ {USB_DEVICE(0x093a, 0x2463)},
+ {USB_DEVICE(0x093a, 0x2464)},
+ {USB_DEVICE(0x093a, 0x2468)},
+ {USB_DEVICE(0x093a, 0x2470)},
+ {USB_DEVICE(0x093a, 0x2471)},
+ {USB_DEVICE(0x093a, 0x2472)},
+ {USB_DEVICE(0x2001, 0xf115)},
{}
};
MODULE_DEVICE_TABLE(usb, device_table);
{
if (usb_register(&sd_driver) < 0)
return -1;
- PDEBUG(D_PROBE, "v%s registered", version);
+ PDEBUG(D_PROBE, "registered");
return 0;
}
static void __exit sd_mod_exit(void)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff