/*
* Pixart PAC207BCA library
*
- * Copyright (C) 2008 Hans de Goede <j.w.r.degoede@hhs.nl>
+ * Copyright (C) 2008 Hans de Goede <hdgoede@redhat.com>
* Copyright (C) 2005 Thomas Kaiser thomas@kaiser-linux.li
* Copyleft (C) 2005 Michel Xhaard mxhaard@magic.fr
*
#include "gspca.h"
-MODULE_AUTHOR("Hans de Goede <j.w.r.degoede@hhs.nl>");
+MODULE_AUTHOR("Hans de Goede <hdgoede@redhat.com>");
MODULE_DESCRIPTION("Pixart PAC207");
MODULE_LICENSE("GPL");
#define PAC207_BRIGHTNESS_MIN 0
#define PAC207_BRIGHTNESS_MAX 255
-#define PAC207_BRIGHTNESS_DEFAULT 4 /* power on default: 4 */
-
-/* An exposure value of 4 also works (3 does not) but then we need to lower
- the compression balance setting when in 352x288 mode, otherwise the usb
- bandwidth is not enough and packets get dropped resulting in corrupt
- frames. The problem with this is that when the compression balance gets
- lowered below 0x80, the pac207 starts using a different compression
- algorithm for some lines, these lines get prefixed with a 0x2dd2 prefix
- and currently we do not know how to decompress these lines, so for now
- we use a minimum exposure value of 5 */
-#define PAC207_EXPOSURE_MIN 5
+#define PAC207_BRIGHTNESS_DEFAULT 46
+
+#define PAC207_EXPOSURE_MIN 3
#define PAC207_EXPOSURE_MAX 26
-#define PAC207_EXPOSURE_DEFAULT 5 /* power on default: 3 ?? */
-#define PAC207_EXPOSURE_KNEE 11 /* 4 = 30 fps, 11 = 8, 15 = 6 */
+#define PAC207_EXPOSURE_DEFAULT 5 /* power on default: 3 */
+#define PAC207_EXPOSURE_KNEE 8 /* 4 = 30 fps, 11 = 8, 15 = 6 */
#define PAC207_GAIN_MIN 0
#define PAC207_GAIN_MAX 31
#define PAC207_GAIN_DEFAULT 9 /* power on default: 9 */
-#define PAC207_GAIN_KNEE 20
+#define PAC207_GAIN_KNEE 31
#define PAC207_AUTOGAIN_DEADZONE 30
-/* We calculating the autogain at the end of the transfer of a frame, at this
- moment a frame with the old settings is being transmitted, and a frame is
- being captured with the old settings. So if we adjust the autogain we must
- ignore atleast the 2 next frames for the new settings to come into effect
- before doing any other adjustments */
-#define PAC207_AUTOGAIN_IGNORE_FRAMES 3
/* specific webcam descriptor */
struct sd {
.minimum = 0,
.maximum = 1,
.step = 1,
- .default_value = 1,
+#define AUTOGAIN_DEF 1
+ .default_value = AUTOGAIN_DEF,
.flags = 0,
},
.set = sd_setautogain,
},
};
-static struct v4l2_pix_format sif_mode[] = {
+static const struct v4l2_pix_format sif_mode[] = {
{176, 144, V4L2_PIX_FMT_PAC207, V4L2_FIELD_NONE,
.bytesperline = 176,
.sizeimage = (176 + 2) * 144,
};
static const __u8 pac207_sensor_init[][8] = {
- {0x10, 0x12, 0x0d, 0x12, 0x0c, 0x01, 0x29, 0xf0},
- {0x00, 0x64, 0x64, 0x64, 0x04, 0x10, 0xf0, 0x30},
+ {0x10, 0x12, 0x0d, 0x12, 0x0c, 0x01, 0x29, 0x84},
+ {0x49, 0x64, 0x64, 0x64, 0x04, 0x10, 0xf0, 0x30},
{0x00, 0x00, 0x00, 0x70, 0xa0, 0xf8, 0x00, 0x00},
- {0x00, 0x00, 0x32, 0x00, 0x96, 0x00, 0xa2, 0x02},
{0x32, 0x00, 0x96, 0x00, 0xA2, 0x02, 0xaf, 0x00},
};
- /* 48 reg_72 Rate Control end BalSize_4a =0x36 */
-static const __u8 PacReg72[] = { 0x00, 0x00, 0x36, 0x00 };
-
-static const unsigned char pac207_sof_marker[5] =
- { 0xff, 0xff, 0x00, 0xff, 0x96 };
-
static int pac207_write_regs(struct gspca_dev *gspca_dev, u16 index,
const u8 *buffer, u16 length)
{
return -ENODEV;
}
- pac207_write_reg(gspca_dev, 0x41, 0x00);
- /* Bit_0=Image Format,
- * Bit_1=LED,
- * Bit_2=Compression test mode enable */
- pac207_write_reg(gspca_dev, 0x0f, 0x00); /* Power Control */
- pac207_write_reg(gspca_dev, 0x11, 0x30); /* Analog Bias */
-
PDEBUG(D_PROBE,
"Pixart PAC207BCA Image Processor and Control Chip detected"
" (vid/pid 0x%04X:0x%04X)", id->idVendor, id->idProduct);
cam = &gspca_dev->cam;
- cam->epaddr = 0x05;
cam->cam_mode = sif_mode;
cam->nmodes = ARRAY_SIZE(sif_mode);
sd->brightness = PAC207_BRIGHTNESS_DEFAULT;
sd->exposure = PAC207_EXPOSURE_DEFAULT;
sd->gain = PAC207_GAIN_DEFAULT;
+ sd->autogain = AUTOGAIN_DEF;
return 0;
}
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
{
- struct sd *sd = (struct sd *) gspca_dev;
+ pac207_write_reg(gspca_dev, 0x41, 0x00);
+ /* Bit_0=Image Format,
+ * Bit_1=LED,
+ * Bit_2=Compression test mode enable */
+ pac207_write_reg(gspca_dev, 0x0f, 0x00); /* Power Control */
- sd->autogain = 1;
return 0;
}
/* -- start the camera -- */
-static void sd_start(struct gspca_dev *gspca_dev)
+static int sd_start(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
__u8 mode;
pac207_write_regs(gspca_dev, 0x0002, pac207_sensor_init[0], 8);
pac207_write_regs(gspca_dev, 0x000a, pac207_sensor_init[1], 8);
pac207_write_regs(gspca_dev, 0x0012, pac207_sensor_init[2], 8);
- pac207_write_regs(gspca_dev, 0x0040, pac207_sensor_init[3], 8);
- pac207_write_regs(gspca_dev, 0x0042, pac207_sensor_init[4], 8);
- pac207_write_regs(gspca_dev, 0x0048, PacReg72, 4);
+ pac207_write_regs(gspca_dev, 0x0042, pac207_sensor_init[3], 8);
/* Compression Balance */
if (gspca_dev->width == 176)
pac207_write_reg(gspca_dev, 0x4a, 0xff);
else
- pac207_write_reg(gspca_dev, 0x4a, 0x88);
+ pac207_write_reg(gspca_dev, 0x4a, 0x30);
pac207_write_reg(gspca_dev, 0x4b, 0x00); /* Sram test value */
pac207_write_reg(gspca_dev, 0x08, sd->brightness);
sd->sof_read = 0;
sd->autogain_ignore_frames = 0;
atomic_set(&sd->avg_lum, -1);
+ return 0;
}
static void sd_stopN(struct gspca_dev *gspca_dev)
pac207_write_reg(gspca_dev, 0x0f, 0x00); /* Power Control */
}
-static void sd_stop0(struct gspca_dev *gspca_dev)
-{
-}
-
-/* this function is called at close time */
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-}
+/* Include pac common sof detection functions */
+#include "pac_common.h"
static void pac207_do_auto_gain(struct gspca_dev *gspca_dev)
{
if (sd->autogain_ignore_frames > 0)
sd->autogain_ignore_frames--;
else if (gspca_auto_gain_n_exposure(gspca_dev, avg_lum,
- 100 + sd->brightness / 2, PAC207_AUTOGAIN_DEADZONE,
+ 100, 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,
- unsigned char *m, int len)
-{
- struct sd *sd = (struct sd *) gspca_dev;
- int i;
-
- /* Search for the SOF marker (fixed part) in the header */
- for (i = 0; i < len; i++) {
- if (m[i] == pac207_sof_marker[sd->sof_read]) {
- sd->sof_read++;
- if (sd->sof_read == sizeof(pac207_sof_marker)) {
- PDEBUG(D_STREAM,
- "SOF found, bytes to analyze: %u."
- " Frame starts at byte #%u",
- len, i + 1);
- sd->sof_read = 0;
- return m + i + 1;
- }
- } else {
- sd->sof_read = 0;
- }
- }
-
- return NULL;
+ sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES;
}
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
struct sd *sd = (struct sd *) gspca_dev;
unsigned char *sof;
- sof = pac207_find_sof(gspca_dev, data, len);
+ sof = pac_find_sof(&sd->sof_read, data, len);
if (sof) {
int n;
/* finish decoding current frame */
n = sof - data;
- if (n > sizeof pac207_sof_marker)
- n -= sizeof pac207_sof_marker;
+ if (n > sizeof pac_sof_marker)
+ n -= sizeof pac_sof_marker;
else
n = 0;
frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
sd->gain = PAC207_GAIN_DEFAULT;
if (gspca_dev->streaming) {
sd->autogain_ignore_frames =
- PAC207_AUTOGAIN_IGNORE_FRAMES;
+ PAC_AUTOGAIN_IGNORE_FRAMES;
setexposure(gspca_dev);
setgain(gspca_dev);
}
.ctrls = sd_ctrls,
.nctrls = ARRAY_SIZE(sd_ctrls),
.config = sd_config,
- .open = sd_open,
+ .init = sd_init,
.start = sd_start,
.stopN = sd_stopN,
- .stop0 = sd_stop0,
- .close = sd_close,
.dq_callback = pac207_do_auto_gain,
.pkt_scan = sd_pkt_scan,
};
static const __devinitdata struct usb_device_id device_table[] = {
{USB_DEVICE(0x041e, 0x4028)},
{USB_DEVICE(0x093a, 0x2460)},
+ {USB_DEVICE(0x093a, 0x2461)},
{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(0x093a, 0x2474)},
+ {USB_DEVICE(0x093a, 0x2476)},
+ {USB_DEVICE(0x145f, 0x013a)},
{USB_DEVICE(0x2001, 0xf115)},
{}
};
/* -- module insert / remove -- */
static int __init sd_mod_init(void)
{
- if (usb_register(&sd_driver) < 0)
- return -1;
+ int ret;
+ ret = usb_register(&sd_driver);
+ if (ret < 0)
+ return ret;
PDEBUG(D_PROBE, "registered");
return 0;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff