* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+/* Some documentation about various registers as determined by trial and error.
+ When the register addresses differ between the 7202 and the 7311 the 2
+ different addresses are written as 7302addr/7311addr, when one of the 2
+ addresses is a - sign that register description is not valid for the
+ matching IC.
+
+ Register page 1:
+
+ Address Description
+ -/0x08 Unknown compressor related, must always be 8 except when not
+ in 640x480 resolution and page 4 reg 2 <= 3 then set it to 9 !
+ -/0x1b Auto white balance related, bit 0 is AWB enable (inverted)
+ bits 345 seem to toggle per color gains on/off (inverted)
+ 0x78 Global control, bit 6 controls the LED (inverted)
+ -/0x80 JPEG compression ratio ? Best not touched
+
+ Register page 3/4:
+
+ Address Description
+ 0x02 Clock divider 2-63, fps =~ 60 / val. Must be a multiple of 3 on
+ the 7302, so one of 3, 6, 9, ..., except when between 6 and 12?
+ -/0x0f Master gain 1-245, low value = high gain
+ 0x10/- Master gain 0-31
+ -/0x10 Another gain 0-15, limited influence (1-2x gain I guess)
+ 0x21 Bitfield: 0-1 unused, 2-3 vflip/hflip, 4-5 unknown, 6-7 unused
+ -/0x27 Seems to toggle various gains on / off, Setting bit 7 seems to
+ completely disable the analog amplification block. Set to 0x68
+ for max gain, 0x14 for minimal gain.
+*/
+
#define MODULE_NAME "pac7311"
#include "gspca.h"
-#include "jpeg.h"
MODULE_AUTHOR("Thomas Kaiser thomas@kaiser-linux.li");
MODULE_DESCRIPTION("Pixart PAC7311");
struct sd {
struct gspca_dev gspca_dev; /* !! must be the first item */
- int lum_sum;
- atomic_t avg_lum;
- atomic_t do_gain;
-
unsigned char brightness;
unsigned char contrast;
unsigned char colors;
+ unsigned char gain;
+ unsigned char exposure;
unsigned char autogain;
-
- char tosof; /* number of bytes before next start of frame */
- signed char ag_cnt;
-#define AG_CNT_START 13
+ __u8 hflip;
+ __u8 vflip;
__u8 sensor;
#define SENSOR_PAC7302 0
#define SENSOR_PAC7311 1
+
+ u8 sof_read;
+ u8 autogain_ignore_frames;
+
+ atomic_t avg_lum;
};
/* V4L2 controls supported by the driver */
static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val);
static struct ctrl sd_ctrls[] = {
+/* This control is pac7302 only */
+#define BRIGHTNESS_IDX 0
{
{
.id = V4L2_CID_BRIGHTNESS,
.set = sd_setbrightness,
.get = sd_getbrightness,
},
+/* This control is for both the 7302 and the 7311 */
{
{
.id = V4L2_CID_CONTRAST,
#define CONTRAST_MAX 255
.maximum = CONTRAST_MAX,
.step = 1,
-#define CONTRAST_DEF 60
+#define CONTRAST_DEF 127
.default_value = CONTRAST_DEF,
},
.set = sd_setcontrast,
.get = sd_getcontrast,
},
+/* This control is pac7302 only */
+#define SATURATION_IDX 2
{
{
.id = V4L2_CID_SATURATION,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Saturation",
.minimum = 0,
- .maximum = 255,
+#define COLOR_MAX 255
+ .maximum = COLOR_MAX,
.step = 1,
#define COLOR_DEF 127
.default_value = COLOR_DEF,
.set = sd_setcolors,
.get = sd_getcolors,
},
+/* All controls below are for both the 7302 and the 7311 */
+ {
+ {
+ .id = V4L2_CID_GAIN,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Gain",
+ .minimum = 0,
+#define GAIN_MAX 255
+ .maximum = GAIN_MAX,
+ .step = 1,
+#define GAIN_DEF 127
+#define GAIN_KNEE 255 /* Gain seems to cause little noise on the pac73xx */
+ .default_value = GAIN_DEF,
+ },
+ .set = sd_setgain,
+ .get = sd_getgain,
+ },
+ {
+ {
+ .id = V4L2_CID_EXPOSURE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Exposure",
+ .minimum = 0,
+#define EXPOSURE_MAX 255
+ .maximum = EXPOSURE_MAX,
+ .step = 1,
+#define EXPOSURE_DEF 16 /* 32 ms / 30 fps */
+#define EXPOSURE_KNEE 50 /* 100 ms / 10 fps */
+ .default_value = EXPOSURE_DEF,
+ },
+ .set = sd_setexposure,
+ .get = sd_getexposure,
+ },
{
{
.id = V4L2_CID_AUTOGAIN,
.set = sd_setautogain,
.get = sd_getautogain,
},
+ {
+ {
+ .id = V4L2_CID_HFLIP,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "Mirror",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+#define HFLIP_DEF 0
+ .default_value = HFLIP_DEF,
+ },
+ .set = sd_sethflip,
+ .get = sd_gethflip,
+ },
+ {
+ {
+ .id = V4L2_CID_VFLIP,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "Vflip",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+#define VFLIP_DEF 0
+ .default_value = VFLIP_DEF,
+ },
+ .set = sd_setvflip,
+ .get = sd_getvflip,
+ },
};
static struct v4l2_pix_format vga_mode[] = {
};
/* pac 7302 */
-static const __u8 probe_7302[] = {
+static const __u8 init_7302[] = {
/* index,value */
0xff, 0x01, /* page 1 */
0x78, 0x00, /* deactivate */
0x2a, 5, 0xc8, 0x00, 0x18, 0x12, 0x22,
0x64, 8, 0x00, 0x00, 0xf0, 0x01, 0x14, 0x44, 0x44, 0x44,
0x6e, 1, 0x08,
- 0xff, 1, 0x03, /* page 1 */
+ 0xff, 1, 0x01, /* page 1 */
0x78, 1, 0x00,
0, 0 /* end of sequence */
};
};
/* pac 7311 */
-static const __u8 probe_7311[] = {
- 0x78, 0x40, /* Bit_0=start stream, Bit_7=LED */
- 0x78, 0x40, /* Bit_0=start stream, Bit_7=LED */
- 0x78, 0x44, /* Bit_0=start stream, Bit_7=LED */
+static const __u8 init_7311[] = {
+ 0x78, 0x40, /* Bit_0=start stream, Bit_6=LED */
+ 0x78, 0x40, /* Bit_0=start stream, Bit_6=LED */
+ 0x78, 0x44, /* Bit_0=start stream, Bit_6=LED */
0xff, 0x04,
0x27, 0x80,
0x28, 0xca,
0x09, 0x00, 0xaa, 0xaa, 0x07, 0x00, 0x00, 0x62,
0x08, 0xaa, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x03, 0xa0, 0x01, 0xf4, 0xaa,
- 0xaa, 0x00, 0x08, 0xaa, 0x03, 0xaa, 0x00, 0x01,
+ 0xaa, 0x00, 0x08, 0xaa, 0x03, 0xaa, 0x00, 0x68,
0xca, 0x10, 0x06, 0x78, 0x00, 0x00, 0x00, 0x00,
0x23, 0x28, 0x04, 0x11, 0x00, 0x00
};
500);
}
-static __u8 reg_r(struct gspca_dev *gspca_dev,
- __u8 index)
-{
- usb_control_msg(gspca_dev->dev,
- usb_rcvctrlpipe(gspca_dev->dev, 0),
- 0, /* request */
- USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- 0, /* value */
- index, gspca_dev->usb_buf, 1,
- 500);
- return gspca_dev->usb_buf[0];
-}
static void reg_w(struct gspca_dev *gspca_dev,
__u8 index,
usb_sndctrlpipe(gspca_dev->dev, 0),
0, /* request */
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- value, index, gspca_dev->usb_buf, 1,
+ 0, index, gspca_dev->usb_buf, 1,
500);
}
reg_w_page(gspca_dev, page3_7302, sizeof page3_7302);
break;
default:
- if (len > 32) {
+ if (len > 64) {
PDEBUG(D_ERR|D_STREAM,
"Incorrect variable sequence");
return;
sd->sensor = id->driver_info;
if (sd->sensor == SENSOR_PAC7302) {
PDEBUG(D_CONF, "Find Sensor PAC7302");
- reg_w_seq(gspca_dev, probe_7302, sizeof probe_7302);
-
cam->cam_mode = &vga_mode[2]; /* only 640x480 */
cam->nmodes = 1;
} else {
PDEBUG(D_CONF, "Find Sensor PAC7311");
- reg_w_seq(gspca_dev, probe_7302, sizeof probe_7302);
-
cam->cam_mode = vga_mode;
cam->nmodes = ARRAY_SIZE(vga_mode);
+ gspca_dev->ctrl_dis = (1 << BRIGHTNESS_IDX)
+ | (1 << SATURATION_IDX);
}
sd->brightness = BRIGHTNESS_DEF;
sd->contrast = CONTRAST_DEF;
sd->colors = COLOR_DEF;
+ sd->gain = GAIN_DEF;
+ sd->exposure = EXPOSURE_DEF;
sd->autogain = AUTOGAIN_DEF;
- sd->ag_cnt = -1;
+ sd->hflip = HFLIP_DEF;
+ sd->vflip = VFLIP_DEF;
return 0;
}
-/* rev 12a only */
+/* This function is used by pac7302 only */
static void setbrightcont(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
reg_w(gspca_dev, 0xdc, 0x01);
}
-static void setbrightness(struct gspca_dev *gspca_dev)
+/* This function is used by pac7311 only */
+static void setcontrast(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
- int brightness;
- if (sd->sensor == SENSOR_PAC7302) {
- setbrightcont(gspca_dev);
- return;
- }
-/*jfm: inverted?*/
- brightness = BRIGHTNESS_MAX - sd->brightness;
reg_w(gspca_dev, 0xff, 0x04);
- reg_w(gspca_dev, 0x0f, brightness);
+ reg_w(gspca_dev, 0x10, sd->contrast >> 4);
/* load registers to sensor (Bit 0, auto clear) */
reg_w(gspca_dev, 0x11, 0x01);
- PDEBUG(D_CONF|D_STREAM, "brightness: %i", brightness);
}
-static void setcontrast(struct gspca_dev *gspca_dev)
+/* This function is used by pac7302 only */
+static void setcolors(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ int i, v;
+ static const int a[9] =
+ {217, -212, 0, -101, 170, -67, -38, -315, 355};
+ static const int b[9] =
+ {19, 106, 0, 19, 106, 1, 19, 106, 1};
+
+ reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
+ reg_w(gspca_dev, 0x11, 0x01);
+ reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
+ reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
+ for (i = 0; i < 9; i++) {
+ v = a[i] * sd->colors / COLOR_MAX + b[i];
+ reg_w(gspca_dev, 0x0f + 2 * i, (v >> 8) & 0x07);
+ reg_w(gspca_dev, 0x0f + 2 * i + 1, v);
+ }
+ reg_w(gspca_dev, 0xdc, 0x01);
+ PDEBUG(D_CONF|D_STREAM, "color: %i", sd->colors);
+}
+
+static void setgain(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
if (sd->sensor == SENSOR_PAC7302) {
- setbrightcont(gspca_dev);
- return;
+ reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
+ reg_w(gspca_dev, 0x10, sd->gain >> 3);
+ } else {
+ int gain = GAIN_MAX - sd->gain;
+ if (gain < 1)
+ gain = 1;
+ else if (gain > 245)
+ gain = 245;
+ reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
+ reg_w(gspca_dev, 0x0e, 0x00);
+ reg_w(gspca_dev, 0x0f, gain);
}
- reg_w(gspca_dev, 0xff, 0x01);
- reg_w(gspca_dev, 0x80, sd->contrast);
/* load registers to sensor (Bit 0, auto clear) */
reg_w(gspca_dev, 0x11, 0x01);
}
-static void setcolors(struct gspca_dev *gspca_dev)
+static void setexposure(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
+ __u8 reg;
- if (sd->sensor == SENSOR_PAC7302)
- return;
- reg_w(gspca_dev, 0xff, 0x01);
- reg_w(gspca_dev, 0x10, sd->colors);
+ /* register 2 of frame 3/4 contains the clock divider configuring the
+ no fps according to the formula: 60 / reg. sd->exposure is the
+ desired exposure time in ms. */
+ reg = 120 * sd->exposure / 1000;
+ if (reg < 2)
+ reg = 2;
+ else if (reg > 63)
+ reg = 63;
+
+ if (sd->sensor == SENSOR_PAC7302) {
+ /* On the pac7302 reg2 MUST be a multiple of 3, so round it to
+ the nearest multiple of 3, except when between 6 and 12? */
+ if (reg < 6 || reg > 12)
+ reg = ((reg + 1) / 3) * 3;
+ reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
+ reg_w(gspca_dev, 0x02, reg);
+ } else {
+ reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
+ reg_w(gspca_dev, 0x02, reg);
+ /* Page 1 register 8 must always be 0x08 except when not in
+ 640x480 mode and Page3/4 reg 2 <= 3 then it must be 9 */
+ reg_w(gspca_dev, 0xff, 0x01);
+ if (gspca_dev->cam.cam_mode[(int)gspca_dev->curr_mode].priv &&
+ reg <= 3)
+ reg_w(gspca_dev, 0x08, 0x09);
+ else
+ reg_w(gspca_dev, 0x08, 0x08);
+ }
/* load registers to sensor (Bit 0, auto clear) */
reg_w(gspca_dev, 0x11, 0x01);
- PDEBUG(D_CONF|D_STREAM, "color: %i", sd->colors);
}
-static void setautogain(struct gspca_dev *gspca_dev)
+static void sethvflip(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
+ __u8 data;
- if (sd->autogain) {
- sd->lum_sum = 0;
- sd->ag_cnt = AG_CNT_START;
+ if (sd->sensor == SENSOR_PAC7302) {
+ reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
+ data = (sd->hflip ? 0x08 : 0x00)
+ | (sd->vflip ? 0x04 : 0x00);
} else {
- sd->ag_cnt = -1;
+ reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
+ data = (sd->hflip ? 0x04 : 0x00)
+ | (sd->vflip ? 0x08 : 0x00);
}
+ reg_w(gspca_dev, 0x21, data);
+ /* load registers to sensor (Bit 0, auto clear) */
+ reg_w(gspca_dev, 0x11, 0x01);
}
-/* 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)
{
- reg_w(gspca_dev, 0x78, 0x00); /* Turn on LED */
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ if (sd->sensor == SENSOR_PAC7302)
+ reg_w_seq(gspca_dev, init_7302, sizeof init_7302);
+ else
+ reg_w_seq(gspca_dev, init_7311, sizeof init_7311);
+
return 0;
}
{
struct sd *sd = (struct sd *) gspca_dev;
- sd->tosof = 0;
+ sd->sof_read = 0;
- if (sd->sensor == SENSOR_PAC7302)
+ if (sd->sensor == SENSOR_PAC7302) {
reg_w_var(gspca_dev, start_7302);
- else
+ setbrightcont(gspca_dev);
+ setcolors(gspca_dev);
+ } else {
reg_w_var(gspca_dev, start_7311);
-
- setcontrast(gspca_dev);
- setbrightness(gspca_dev);
- setcolors(gspca_dev);
- setautogain(gspca_dev);
+ setcontrast(gspca_dev);
+ }
+ setgain(gspca_dev);
+ setexposure(gspca_dev);
+ sethvflip(gspca_dev);
/* set correct resolution */
switch (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
case 2: /* 160x120 pac7311 */
- reg_w(gspca_dev, 0xff, 0x04);
- reg_w(gspca_dev, 0x02, 0x03);
reg_w(gspca_dev, 0xff, 0x01);
- reg_w(gspca_dev, 0x08, 0x09);
reg_w(gspca_dev, 0x17, 0x20);
- reg_w(gspca_dev, 0x1b, 0x00);
-/* reg_w(gspca_dev, 0x80, 0x69); */
reg_w(gspca_dev, 0x87, 0x10);
break;
case 1: /* 320x240 pac7311 */
- reg_w(gspca_dev, 0xff, 0x04);
- reg_w(gspca_dev, 0x02, 0x03);
reg_w(gspca_dev, 0xff, 0x01);
- reg_w(gspca_dev, 0x08, 0x09);
reg_w(gspca_dev, 0x17, 0x30);
-/* reg_w(gspca_dev, 0x80, 0x3f); */
reg_w(gspca_dev, 0x87, 0x11);
break;
case 0: /* 640x480 */
if (sd->sensor == SENSOR_PAC7302)
break;
- reg_w(gspca_dev, 0xff, 0x04);
- reg_w(gspca_dev, 0x02, 0x03);
reg_w(gspca_dev, 0xff, 0x01);
- reg_w(gspca_dev, 0x08, 0x08);
reg_w(gspca_dev, 0x17, 0x00);
-/* reg_w(gspca_dev, 0x80, 0x1c); */
reg_w(gspca_dev, 0x87, 0x12);
break;
}
+ sd->sof_read = 0;
+ sd->autogain_ignore_frames = 0;
+ atomic_set(&sd->avg_lum, -1);
+
/* start stream */
reg_w(gspca_dev, 0xff, 0x01);
- if (sd->sensor == SENSOR_PAC7302) {
- reg_w(gspca_dev, 0x78, 0x01);
- reg_w(gspca_dev, 0xff, 0x01);
+ if (sd->sensor == SENSOR_PAC7302)
reg_w(gspca_dev, 0x78, 0x01);
- } else {
- reg_w(gspca_dev, 0x78, 0x04);
+ else
reg_w(gspca_dev, 0x78, 0x05);
- }
}
static void sd_stopN(struct gspca_dev *gspca_dev)
struct sd *sd = (struct sd *) gspca_dev;
if (sd->sensor == SENSOR_PAC7302) {
+ reg_w(gspca_dev, 0xff, 0x01);
reg_w(gspca_dev, 0x78, 0x00);
reg_w(gspca_dev, 0x78, 0x00);
return;
reg_w(gspca_dev, 0x2a, 0x0e);
reg_w(gspca_dev, 0xff, 0x01);
reg_w(gspca_dev, 0x3e, 0x20);
- reg_w(gspca_dev, 0x78, 0x04); /* Bit_0=start stream, Bit_7=LED */
- reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_7=LED */
- reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_7=LED */
+ reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
+ reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
+ reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
}
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 do_autogain(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
- int luma;
- int luma_mean = 128;
- int luma_delta = 20;
- __u8 spring = 5;
- int Gbright;
+ int avg_lum = atomic_read(&sd->avg_lum);
+ int desired_lum, deadzone;
- if (!atomic_read(&sd->do_gain))
+ if (avg_lum == -1)
return;
- atomic_set(&sd->do_gain, 0);
-
- luma = atomic_read(&sd->avg_lum);
- Gbright = reg_r(gspca_dev, 0x02);
- PDEBUG(D_FRAM, "luma mean %d", luma);
- if (luma < luma_mean - luma_delta ||
- luma > luma_mean + luma_delta) {
- Gbright += (luma_mean - luma) >> spring;
- if (Gbright > 0x1a)
- Gbright = 0x1a;
- else if (Gbright < 4)
- Gbright = 4;
- PDEBUG(D_FRAM, "gbright %d", Gbright);
- if (sd->sensor == SENSOR_PAC7302) {
- reg_w(gspca_dev, 0xff, 0x03);
- reg_w(gspca_dev, 0x10, Gbright);
- /* load registers to sensor (Bit 0, auto clear) */
- reg_w(gspca_dev, 0x11, 0x01);
- } else {
- reg_w(gspca_dev, 0xff, 0x04);
- reg_w(gspca_dev, 0x0f, Gbright);
- /* load registers to sensor (Bit 0, auto clear) */
- reg_w(gspca_dev, 0x11, 0x01);
- }
+
+ if (sd->sensor == SENSOR_PAC7302) {
+ desired_lum = 270 + sd->brightness * 4;
+ /* Hack hack, with the 7202 the first exposure step is
+ pretty large, so if we're about to make the first
+ exposure increase make the deadzone large to avoid
+ oscilating */
+ if (desired_lum > avg_lum && sd->gain == GAIN_DEF &&
+ sd->exposure > EXPOSURE_DEF &&
+ sd->exposure < 42)
+ deadzone = 90;
+ else
+ deadzone = 30;
+ } else {
+ desired_lum = 200;
+ deadzone = 20;
}
+
+ if (sd->autogain_ignore_frames > 0)
+ sd->autogain_ignore_frames--;
+ else if (gspca_auto_gain_n_exposure(gspca_dev, avg_lum, desired_lum,
+ deadzone, GAIN_KNEE, EXPOSURE_KNEE))
+ sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES;
}
+static const unsigned char pac7311_jpeg_header1[] = {
+ 0xff, 0xd8, 0xff, 0xc0, 0x00, 0x11, 0x08
+};
+
+static const unsigned char pac7311_jpeg_header2[] = {
+ 0x03, 0x01, 0x21, 0x00, 0x02, 0x11, 0x01, 0x03, 0x11, 0x01, 0xff, 0xda,
+ 0x00, 0x0c, 0x03, 0x01, 0x00, 0x02, 0x11, 0x03, 0x11, 0x00, 0x3f, 0x00
+};
+
/* this function is run at interrupt level */
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
struct gspca_frame *frame, /* target */
int len) /* iso packet length */
{
struct sd *sd = (struct sd *) gspca_dev;
- int i;
-
-#define INTER_FRAME 0x53 /* eof + inter frame + sof */
-#define LUM_OFFSET 0x1e /* reverse offset / start of frame */
-
- /*
- * inside a frame, there may be:
- * escaped ff ('ff 00')
- * sequences'ff ff ff xx' to remove
- * end of frame ('ff d9')
- * at the end of frame, there are:
- * ff d9 end of frame
- * 0x33 bytes
- * one byte luminosity
- * 0x16 bytes
- * ff ff 00 ff 96 62 44 start of frame
- */
-
- if (sd->tosof != 0) { /* if outside a frame */
-
- /* get the luminosity and go to the start of frame */
- data += sd->tosof;
- len -= sd->tosof;
- if (sd->tosof > LUM_OFFSET)
- sd->lum_sum += data[-LUM_OFFSET];
- sd->tosof = 0;
- jpeg_put_header(gspca_dev, frame, 1, 0x21);
- }
+ unsigned char *sof;
- for (i = 0; i < len; i++) {
- if (data[i] != 0xff)
- continue;
- switch (data[i + 1]) {
- case 0xd9: /* 'ff d9' end of frame */
- frame = gspca_frame_add(gspca_dev,
- LAST_PACKET,
- frame, data, i + 2);
- data += i + INTER_FRAME;
- len -= i + INTER_FRAME;
- i = 0;
- if (len > -LUM_OFFSET)
- sd->lum_sum += data[-LUM_OFFSET];
- if (len < 0) {
- sd->tosof = -len;
- break;
- }
- jpeg_put_header(gspca_dev, frame, 1, 0x21);
- break;
+ sof = pac_find_sof(gspca_dev, data, len);
+ if (sof) {
+ unsigned char tmpbuf[4];
+ int n, lum_offset, footer_length;
+
+ if (sd->sensor == SENSOR_PAC7302) {
+ /* 6 bytes after the FF D9 EOF marker a number of lumination
+ bytes are send corresponding to different parts of the
+ image, the 14th and 15th byte after the EOF seem to
+ correspond to the center of the image */
+ lum_offset = 61 + sizeof pac_sof_marker;
+ footer_length = 74;
+ } else {
+ lum_offset = 24 + sizeof pac_sof_marker;
+ footer_length = 26;
+ }
+
+ /* Finish decoding current frame */
+ n = (sof - data) - (footer_length + sizeof pac_sof_marker);
+ if (n < 0) {
+ frame->data_end += n;
+ n = 0;
+ }
+ frame = gspca_frame_add(gspca_dev, INTER_PACKET, frame,
+ data, n);
+ if (gspca_dev->last_packet_type != DISCARD_PACKET &&
+ frame->data_end[-2] == 0xff &&
+ frame->data_end[-1] == 0xd9)
+ frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
+ NULL, 0);
+
+ n = sof - data;
+ len -= n;
+ data = sof;
+
+ /* Get average lumination */
+ if (gspca_dev->last_packet_type == LAST_PACKET &&
+ n >= lum_offset)
+ atomic_set(&sd->avg_lum, data[-lum_offset] +
+ data[-lum_offset + 1]);
+ else
+ atomic_set(&sd->avg_lum, -1);
+
+ /* Start the new frame with the jpeg header */
+ gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
+ pac7311_jpeg_header1, sizeof(pac7311_jpeg_header1));
+ if (sd->sensor == SENSOR_PAC7302) {
+ /* The PAC7302 has the image rotated 90 degrees */
+ tmpbuf[0] = gspca_dev->width >> 8;
+ tmpbuf[1] = gspca_dev->width & 0xff;
+ tmpbuf[2] = gspca_dev->height >> 8;
+ tmpbuf[3] = gspca_dev->height & 0xff;
+ } else {
+ tmpbuf[0] = gspca_dev->height >> 8;
+ tmpbuf[1] = gspca_dev->height & 0xff;
+ tmpbuf[2] = gspca_dev->width >> 8;
+ tmpbuf[3] = gspca_dev->width & 0xff;
}
+ gspca_frame_add(gspca_dev, INTER_PACKET, frame, tmpbuf, 4);
+ gspca_frame_add(gspca_dev, INTER_PACKET, frame,
+ pac7311_jpeg_header2, sizeof(pac7311_jpeg_header2));
}
- gspca_frame_add(gspca_dev, INTER_PACKET,
- frame, data, i);
+ gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
}
static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
sd->brightness = val;
if (gspca_dev->streaming)
- setbrightness(gspca_dev);
+ setbrightcont(gspca_dev);
return 0;
}
struct sd *sd = (struct sd *) gspca_dev;
sd->contrast = val;
- if (gspca_dev->streaming)
- setcontrast(gspca_dev);
+ if (gspca_dev->streaming) {
+ if (sd->sensor == SENSOR_PAC7302)
+ setbrightcont(gspca_dev);
+ else
+ setcontrast(gspca_dev);
+ }
return 0;
}
return 0;
}
+static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->gain = val;
+ if (gspca_dev->streaming)
+ setgain(gspca_dev);
+ return 0;
+}
+
+static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->gain;
+ return 0;
+}
+
+static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->exposure = val;
+ if (gspca_dev->streaming)
+ setexposure(gspca_dev);
+ return 0;
+}
+
+static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->exposure;
+ return 0;
+}
+
static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
sd->autogain = val;
- if (gspca_dev->streaming)
- setautogain(gspca_dev);
+ /* when switching to autogain set defaults to make sure
+ we are on a valid point of the autogain gain /
+ exposure knee graph, and give this change time to
+ take effect before doing autogain. */
+ if (sd->autogain) {
+ sd->exposure = EXPOSURE_DEF;
+ sd->gain = GAIN_DEF;
+ if (gspca_dev->streaming) {
+ sd->autogain_ignore_frames =
+ PAC_AUTOGAIN_IGNORE_FRAMES;
+ setexposure(gspca_dev);
+ setgain(gspca_dev);
+ }
+ }
+
return 0;
}
return 0;
}
+static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->hflip = val;
+ if (gspca_dev->streaming)
+ sethvflip(gspca_dev);
+ return 0;
+}
+
+static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->hflip;
+ return 0;
+}
+
+static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->vflip = val;
+ if (gspca_dev->streaming)
+ sethvflip(gspca_dev);
+ return 0;
+}
+
+static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->vflip;
+ return 0;
+}
+
/* sub-driver description */
static struct sd_desc sd_desc = {
.name = MODULE_NAME,
.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,
.pkt_scan = sd_pkt_scan,
.dq_callback = do_autogain,
};
{USB_DEVICE(0x093a, 0x260e), .driver_info = SENSOR_PAC7311},
{USB_DEVICE(0x093a, 0x260f), .driver_info = SENSOR_PAC7311},
{USB_DEVICE(0x093a, 0x2621), .driver_info = SENSOR_PAC7302},
+ {USB_DEVICE(0x093a, 0x2624), .driver_info = SENSOR_PAC7302},
+ {USB_DEVICE(0x093a, 0x2626), .driver_info = SENSOR_PAC7302},
{}
};
MODULE_DEVICE_TABLE(usb, device_table);
.id_table = device_table,
.probe = sd_probe,
.disconnect = gspca_disconnect,
+#ifdef CONFIG_PM
+ .suspend = gspca_suspend,
+ .resume = gspca_resume,
+#endif
};
/* -- module insert / remove -- */
projects / linux-2.6-omap-h63xx.git / blobdiff