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path: root/drivers/media/video/gspca/pac7311.c
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Diffstat (limited to 'drivers/media/video/gspca/pac7311.c')
-rw-r--r--drivers/media/video/gspca/pac7311.c301
1 files changed, 218 insertions, 83 deletions
diff --git a/drivers/media/video/gspca/pac7311.c b/drivers/media/video/gspca/pac7311.c
index e22ca610334..14b98111cd9 100644
--- a/drivers/media/video/gspca/pac7311.c
+++ b/drivers/media/video/gspca/pac7311.c
@@ -44,6 +44,9 @@
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"
@@ -61,6 +64,8 @@ struct sd {
unsigned char brightness;
unsigned char contrast;
unsigned char colors;
+ unsigned char gain;
+ unsigned char exposure;
unsigned char autogain;
__u8 hflip;
__u8 vflip;
@@ -88,8 +93,14 @@ 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,
@@ -105,6 +116,7 @@ static struct ctrl sd_ctrls[] = {
.set = sd_setbrightness,
.get = sd_getbrightness,
},
+/* This control is for both the 7302 and the 7311 */
{
{
.id = V4L2_CID_CONTRAST,
@@ -120,6 +132,8 @@ static struct ctrl sd_ctrls[] = {
.set = sd_setcontrast,
.get = sd_getcontrast,
},
+/* This control is pac7302 only */
+#define SATURATION_IDX 2
{
{
.id = V4L2_CID_SATURATION,
@@ -135,6 +149,39 @@ static struct ctrl sd_ctrls[] = {
.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,
@@ -149,8 +196,6 @@ static struct ctrl sd_ctrls[] = {
.set = sd_setautogain,
.get = sd_getautogain,
},
-/* next controls work with pac7302 only */
-#define HFLIP_IDX 4
{
{
.id = V4L2_CID_HFLIP,
@@ -165,7 +210,6 @@ static struct ctrl sd_ctrls[] = {
.set = sd_sethflip,
.get = sd_gethflip,
},
-#define VFLIP_IDX 5
{
{
.id = V4L2_CID_VFLIP,
@@ -345,7 +389,7 @@ static const __u8 page4_7311[] = {
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
};
@@ -374,7 +418,7 @@ static void reg_w(struct gspca_dev *gspca_dev,
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);
}
@@ -469,20 +513,22 @@ static int sd_config(struct gspca_dev *gspca_dev,
cam->cam_mode = vga_mode;
cam->nmodes = ARRAY_SIZE(vga_mode);
- gspca_dev->ctrl_dis = (1 << HFLIP_IDX)
- | (1 << VFLIP_IDX);
+ 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->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;
@@ -509,67 +555,95 @@ static void setbrightcont(struct gspca_dev *gspca_dev)
reg_w(gspca_dev, 0xdc, 0x01);
}
-/* This function is used by pac7302 only */
-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;
- }
-/* HDG: this is not brightness but gain, I'll add gain and exposure controls
- in a next patch */
- return;
- brightness = BRIGHTNESS_MAX - sd->brightness;
reg_w(gspca_dev, 0xff, 0x04);
- reg_w(gspca_dev, 0x0e, 0x00);
- 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, 0x04);
- reg_w(gspca_dev, 0x10, sd->contrast >> 4);
/* load registers to sensor (Bit 0, auto clear) */
reg_w(gspca_dev, 0x11, 0x01);
}
-/* This function is used by pac7302 only */
-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;
+
+ /* 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) {
- 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);
+ /* On the pac7302 reg2 MUST be a multiple of 3, so round it to
+ the nearest multiple of 3 */
+ 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);
}
static void sethvflip(struct gspca_dev *gspca_dev)
@@ -579,14 +653,15 @@ static void sethvflip(struct gspca_dev *gspca_dev)
if (sd->sensor == SENSOR_PAC7302) {
reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
- data = (sd->hflip ? 0x00 : 0x08)
+ data = (sd->hflip ? 0x08 : 0x00)
| (sd->vflip ? 0x04 : 0x00);
} else {
- reg_w(gspca_dev, 0xff, 0x04); /* page 3 */
+ 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);
}
@@ -602,61 +677,49 @@ static void sd_start(struct gspca_dev *gspca_dev)
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);
+ 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, 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, 0x87, 0x11);
break;
case 0: /* 640x480 */
if (sd->sensor == SENSOR_PAC7302)
break;
- reg_w(gspca_dev, 0xff, 0x04);
- reg_w(gspca_dev, 0x02, 0x07);
reg_w(gspca_dev, 0xff, 0x01);
- reg_w(gspca_dev, 0x08, 0x08);
reg_w(gspca_dev, 0x17, 0x00);
reg_w(gspca_dev, 0x87, 0x12);
break;
}
- /* start stream */
- reg_w(gspca_dev, 0xff, 0x01);
- if (sd->sensor == SENSOR_PAC7302) {
- sethvflip(gspca_dev);
- reg_w(gspca_dev, 0x78, 0x01);
- reg_w(gspca_dev, 0xff, 0x01);
- reg_w(gspca_dev, 0x78, 0x01);
- } else {
- reg_w(gspca_dev, 0x78, 0x44);
- reg_w(gspca_dev, 0x78, 0x45);
- }
-
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);
+ else
+ reg_w(gspca_dev, 0x78, 0x05);
}
static void sd_stopN(struct gspca_dev *gspca_dev)
@@ -691,8 +754,28 @@ static void sd_stop0(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 avg_lum = atomic_read(&sd->avg_lum);
+ int desired_lum;
+
+ if (avg_lum == -1)
+ return;
+
+ if (sd->sensor == SENSOR_PAC7302)
+ desired_lum = 70 + sd->brightness * 2;
+ else
+ desired_lum = 200;
+
+ if (sd->autogain_ignore_frames > 0)
+ sd->autogain_ignore_frames--;
+ else if (gspca_auto_gain_n_exposure(gspca_dev, avg_lum, desired_lum,
+ 10, GAIN_KNEE, EXPOSURE_KNEE))
+ sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES;
}
static const unsigned char pac7311_jpeg_header1[] = {
@@ -704,9 +787,6 @@ static const unsigned char pac7311_jpeg_header2[] = {
0x00, 0x0c, 0x03, 0x01, 0x00, 0x02, 0x11, 0x03, 0x11, 0x00, 0x3f, 0x00
};
-/* Include pac common sof detection functions */
-#include "pac_common.h"
-
/* this function is run at interrupt level */
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
struct gspca_frame *frame, /* target */
@@ -790,7 +870,7 @@ 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;
}
@@ -807,8 +887,12 @@ static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
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;
}
@@ -838,11 +922,61 @@ static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
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;
+ /* 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;
}
@@ -914,6 +1048,7 @@ static __devinitdata struct usb_device_id device_table[] = {
{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},
{}
};
MODULE_DEVICE_TABLE(usb, device_table);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-26 00:22:46 +0000