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Diffstat (limited to 'drivers/media/video/gspca/pac7302.c')
-rw-r--r--drivers/media/video/gspca/pac7302.c411
1 files changed, 188 insertions, 223 deletions
diff --git a/drivers/media/video/gspca/pac7302.c b/drivers/media/video/gspca/pac7302.c
index de0b66c4b56e..2a68220d1ada 100644
--- a/drivers/media/video/gspca/pac7302.c
+++ b/drivers/media/video/gspca/pac7302.c
@@ -4,7 +4,9 @@
*
* V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
*
- * Separated from Pixart PAC7311 library by Márton Németh <nm127@freemail.hu>
+ * Separated from Pixart PAC7311 library by Márton Németh
+ * Camera button input handling by Márton Németh <nm127@freemail.hu>
+ * Copyright (C) 2009-2010 Márton Németh <nm127@freemail.hu>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -22,33 +24,26 @@
*/
/* 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:
+ Register page 3:
Address Description
- 0x02 Clock divider 2-63, fps =~ 60 / val. Must be a multiple of 3 on
+ 0x02 Clock divider 3-63, fps = 90 / 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)
+ 0x03 Variable framerate ctrl reg2==3: 0 -> ~30 fps, 255 -> ~22fps
+ 0x04 Another var framerate ctrl reg2==3, reg3==0: 0 -> ~30 fps,
+ 63 -> ~27 fps, the 2 msb's must always be 1 !!
+ 0x05 Another var framerate ctrl reg2==3, reg3==0, reg4==0xc0:
+ 1 -> ~30 fps, 2 -> ~20 fps
+ 0x0e Exposure bits 0-7, 0-448, 0 = use full frame time
+ 0x0f Exposure bit 8, 0-448, 448 = no exposure at all
+ 0x10 Master gain 0-31
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.
The registers are accessed in the following functions:
@@ -68,6 +63,7 @@
#define MODULE_NAME "pac7302"
+#include <linux/input.h>
#include <media/v4l2-chip-ident.h>
#include "gspca.h"
@@ -86,8 +82,8 @@ struct sd {
unsigned char red_balance;
unsigned char blue_balance;
unsigned char gain;
- unsigned char exposure;
unsigned char autogain;
+ unsigned short exposure;
__u8 hflip;
__u8 vflip;
u8 flags;
@@ -124,8 +120,7 @@ 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 */
+static const struct ctrl sd_ctrls[] = {
{
{
.id = V4L2_CID_BRIGHTNESS,
@@ -141,7 +136,6 @@ 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,
@@ -157,7 +151,6 @@ static struct ctrl sd_ctrls[] = {
.set = sd_setcontrast,
.get = sd_getcontrast,
},
-/* This control is pac7302 only */
{
{
.id = V4L2_CID_SATURATION,
@@ -215,7 +208,6 @@ static struct ctrl sd_ctrls[] = {
.set = sd_setbluebalance,
.get = sd_getbluebalance,
},
-/* All controls below are for both the 7302 and the 7311 */
{
{
.id = V4L2_CID_GAIN,
@@ -238,11 +230,10 @@ static struct ctrl sd_ctrls[] = {
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Exposure",
.minimum = 0,
-#define EXPOSURE_MAX 255
- .maximum = EXPOSURE_MAX,
+ .maximum = 1023,
.step = 1,
-#define EXPOSURE_DEF 16 /* 32 ms / 30 fps */
-#define EXPOSURE_KNEE 50 /* 100 ms / 10 fps */
+#define EXPOSURE_DEF 66 /* 33 ms / 30 fps */
+#define EXPOSURE_KNEE 133 /* 66 ms / 15 fps */
.default_value = EXPOSURE_DEF,
},
.set = sd_setexposure,
@@ -301,7 +292,6 @@ static const struct v4l2_pix_format vga_mode[] = {
};
#define LOAD_PAGE3 255
-#define LOAD_PAGE4 254
#define END_OF_SEQUENCE 0
/* pac 7302 */
@@ -379,7 +369,7 @@ static const __u8 start_7302[] = {
#define SKIP 0xaa
/* page 3 - the value SKIP says skip the index - see reg_w_page() */
static const __u8 page3_7302[] = {
- 0x90, 0x40, 0x03, 0x50, 0xc2, 0x01, 0x14, 0x16,
+ 0x90, 0x40, 0x03, 0x00, 0xc0, 0x01, 0x14, 0x16,
0x14, 0x12, 0x00, 0x00, 0x00, 0x02, 0x33, 0x00,
0x0f, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x47, 0x01, 0xb3, 0x01, 0x00,
@@ -388,7 +378,7 @@ static const __u8 page3_7302[] = {
0xa4, 0xb8, 0xe0, 0x2a, 0xf6, 0x00, 0x00, 0x00,
0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0xfc, 0x00, 0xf2, 0x1f, 0x04, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0xc0, 0xc0, 0x10, 0x00, 0x00,
+ SKIP, 0x00, 0x00, 0xc0, 0xc0, 0x10, 0x00, 0x00,
0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x40, 0xff, 0x03, 0x19, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
@@ -401,12 +391,14 @@ static const __u8 page3_7302[] = {
0x00
};
-static int reg_w_buf(struct gspca_dev *gspca_dev,
+static void reg_w_buf(struct gspca_dev *gspca_dev,
__u8 index,
const char *buffer, int len)
{
int ret;
+ if (gspca_dev->usb_err < 0)
+ return;
memcpy(gspca_dev->usb_buf, buffer, len);
ret = usb_control_msg(gspca_dev->dev,
usb_sndctrlpipe(gspca_dev->dev, 0),
@@ -415,20 +407,23 @@ static int reg_w_buf(struct gspca_dev *gspca_dev,
0, /* value */
index, gspca_dev->usb_buf, len,
500);
- if (ret < 0)
+ if (ret < 0) {
PDEBUG(D_ERR, "reg_w_buf(): "
"Failed to write registers to index 0x%x, error %i",
index, ret);
- return ret;
+ gspca_dev->usb_err = ret;
+ }
}
-static int reg_w(struct gspca_dev *gspca_dev,
+static void reg_w(struct gspca_dev *gspca_dev,
__u8 index,
__u8 value)
{
int ret;
+ if (gspca_dev->usb_err < 0)
+ return;
gspca_dev->usb_buf[0] = value;
ret = usb_control_msg(gspca_dev->dev,
usb_sndctrlpipe(gspca_dev->dev, 0),
@@ -436,32 +431,32 @@ static int reg_w(struct gspca_dev *gspca_dev,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0, index, gspca_dev->usb_buf, 1,
500);
- if (ret < 0)
+ if (ret < 0) {
PDEBUG(D_ERR, "reg_w(): "
"Failed to write register to index 0x%x, value 0x%x, error %i",
index, value, ret);
- return ret;
+ gspca_dev->usb_err = ret;
+ }
}
-static int reg_w_seq(struct gspca_dev *gspca_dev,
+static void reg_w_seq(struct gspca_dev *gspca_dev,
const __u8 *seq, int len)
{
- int ret = 0;
while (--len >= 0) {
- if (0 <= ret)
- ret = reg_w(gspca_dev, seq[0], seq[1]);
+ reg_w(gspca_dev, seq[0], seq[1]);
seq += 2;
}
- return ret;
}
/* load the beginning of a page */
-static int reg_w_page(struct gspca_dev *gspca_dev,
+static void reg_w_page(struct gspca_dev *gspca_dev,
const __u8 *page, int len)
{
int index;
int ret = 0;
+ if (gspca_dev->usb_err < 0)
+ return;
for (index = 0; index < len; index++) {
if (page[index] == SKIP) /* skip this index */
continue;
@@ -477,56 +472,47 @@ static int reg_w_page(struct gspca_dev *gspca_dev,
"Failed to write register to index 0x%x, "
"value 0x%x, error %i",
index, page[index], ret);
+ gspca_dev->usb_err = ret;
break;
}
}
- return ret;
}
/* output a variable sequence */
-static int reg_w_var(struct gspca_dev *gspca_dev,
+static void reg_w_var(struct gspca_dev *gspca_dev,
const __u8 *seq,
- const __u8 *page3, unsigned int page3_len,
- const __u8 *page4, unsigned int page4_len)
+ const __u8 *page3, unsigned int page3_len)
{
int index, len;
- int ret = 0;
for (;;) {
index = *seq++;
len = *seq++;
switch (len) {
case END_OF_SEQUENCE:
- return ret;
- case LOAD_PAGE4:
- ret = reg_w_page(gspca_dev, page4, page4_len);
- break;
+ return;
case LOAD_PAGE3:
- ret = reg_w_page(gspca_dev, page3, page3_len);
+ reg_w_page(gspca_dev, page3, page3_len);
break;
default:
if (len > USB_BUF_SZ) {
PDEBUG(D_ERR|D_STREAM,
"Incorrect variable sequence");
- return -EINVAL;
+ return;
}
while (len > 0) {
if (len < 8) {
- ret = reg_w_buf(gspca_dev,
+ reg_w_buf(gspca_dev,
index, seq, len);
- if (ret < 0)
- return ret;
seq += len;
break;
}
- ret = reg_w_buf(gspca_dev, index, seq, 8);
+ reg_w_buf(gspca_dev, index, seq, 8);
seq += 8;
index += 8;
len -= 8;
}
}
- if (ret < 0)
- return ret;
}
/* not reached */
}
@@ -560,11 +546,10 @@ static int sd_config(struct gspca_dev *gspca_dev,
}
/* This function is used by pac7302 only */
-static int setbrightcont(struct gspca_dev *gspca_dev)
+static void setbrightcont(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int i, v;
- int ret;
static const __u8 max[10] =
{0x29, 0x33, 0x42, 0x5a, 0x6e, 0x80, 0x9f, 0xbb,
0xd4, 0xec};
@@ -572,7 +557,7 @@ static int setbrightcont(struct gspca_dev *gspca_dev)
{0x35, 0x33, 0x33, 0x2f, 0x2a, 0x25, 0x1e, 0x17,
0x11, 0x0b};
- ret = reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
+ reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
for (i = 0; i < 10; i++) {
v = max[i];
v += (sd->brightness - BRIGHTNESS_MAX)
@@ -582,136 +567,121 @@ static int setbrightcont(struct gspca_dev *gspca_dev)
v = 0;
else if (v > 0xff)
v = 0xff;
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0xa2 + i, v);
+ reg_w(gspca_dev, 0xa2 + i, v);
}
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0xdc, 0x01);
- return ret;
+ reg_w(gspca_dev, 0xdc, 0x01);
}
/* This function is used by pac7302 only */
-static int setcolors(struct gspca_dev *gspca_dev)
+static void setcolors(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int i, v;
- int ret;
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};
- ret = reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x11, 0x01);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
+ reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
+ reg_w(gspca_dev, 0x11, 0x01);
+ reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
for (i = 0; i < 9; i++) {
v = a[i] * sd->colors / COLOR_MAX + b[i];
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x0f + 2 * i, (v >> 8) & 0x07);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x0f + 2 * i + 1, v);
+ reg_w(gspca_dev, 0x0f + 2 * i, (v >> 8) & 0x07);
+ reg_w(gspca_dev, 0x0f + 2 * i + 1, v);
}
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0xdc, 0x01);
+ reg_w(gspca_dev, 0xdc, 0x01);
PDEBUG(D_CONF|D_STREAM, "color: %i", sd->colors);
- return ret;
}
-static int setwhitebalance(struct gspca_dev *gspca_dev)
+static void setwhitebalance(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
- int ret;
- ret = reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0xc6, sd->white_balance);
+ reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
+ reg_w(gspca_dev, 0xc6, sd->white_balance);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0xdc, 0x01);
+ reg_w(gspca_dev, 0xdc, 0x01);
PDEBUG(D_CONF|D_STREAM, "white_balance: %i", sd->white_balance);
- return ret;
}
-static int setredbalance(struct gspca_dev *gspca_dev)
+static void setredbalance(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
- int ret;
- ret = reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0xc5, sd->red_balance);
+ reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
+ reg_w(gspca_dev, 0xc5, sd->red_balance);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0xdc, 0x01);
+ reg_w(gspca_dev, 0xdc, 0x01);
PDEBUG(D_CONF|D_STREAM, "red_balance: %i", sd->red_balance);
- return ret;
}
-static int setbluebalance(struct gspca_dev *gspca_dev)
+static void setbluebalance(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
- int ret;
- ret = reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0xc7, sd->blue_balance);
+ reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
+ reg_w(gspca_dev, 0xc7, sd->blue_balance);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0xdc, 0x01);
+ reg_w(gspca_dev, 0xdc, 0x01);
PDEBUG(D_CONF|D_STREAM, "blue_balance: %i", sd->blue_balance);
- return ret;
}
-static int setgain(struct gspca_dev *gspca_dev)
+static void setgain(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
- int ret;
- ret = reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x10, sd->gain >> 3);
+ reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
+ reg_w(gspca_dev, 0x10, sd->gain >> 3);
/* load registers to sensor (Bit 0, auto clear) */
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x11, 0x01);
- return ret;
+ reg_w(gspca_dev, 0x11, 0x01);
}
-static int setexposure(struct gspca_dev *gspca_dev)
+static void setexposure(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
- int ret;
- __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;
-
- /* 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;
- ret = reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x02, reg);
+ __u8 clockdiv;
+ __u16 exposure;
+
+ /* register 2 of frame 3 contains the clock divider configuring the
+ no fps according to the formula: 90 / reg. sd->exposure is the
+ desired exposure time in 0.5 ms. */
+ clockdiv = (90 * sd->exposure + 1999) / 2000;
+
+ /* Note clockdiv = 3 also works, but when running at 30 fps, depending
+ on the scene being recorded, the camera switches to another
+ quantization table for certain JPEG blocks, and we don't know how
+ to decompress these blocks. So we cap the framerate at 15 fps */
+ if (clockdiv < 6)
+ clockdiv = 6;
+ else if (clockdiv > 63)
+ clockdiv = 63;
+
+ /* reg2 MUST be a multiple of 3, except when between 6 and 12?
+ Always round up, otherwise we cannot get the desired frametime
+ using the partial frame time exposure control */
+ if (clockdiv < 6 || clockdiv > 12)
+ clockdiv = ((clockdiv + 2) / 3) * 3;
+
+ /* frame exposure time in ms = 1000 * clockdiv / 90 ->
+ exposure = (sd->exposure / 2) * 448 / (1000 * clockdiv / 90) */
+ exposure = (sd->exposure * 45 * 448) / (1000 * clockdiv);
+ /* 0 = use full frametime, 448 = no exposure, reverse it */
+ exposure = 448 - exposure;
+
+ reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
+ reg_w(gspca_dev, 0x02, clockdiv);
+ reg_w(gspca_dev, 0x0e, exposure & 0xff);
+ reg_w(gspca_dev, 0x0f, exposure >> 8);
/* load registers to sensor (Bit 0, auto clear) */
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x11, 0x01);
- return ret;
+ reg_w(gspca_dev, 0x11, 0x01);
}
-static int sethvflip(struct gspca_dev *gspca_dev)
+static void sethvflip(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
- int ret;
u8 data, hflip, vflip;
hflip = sd->hflip;
@@ -721,48 +691,37 @@ static int sethvflip(struct gspca_dev *gspca_dev)
if (sd->flags & FL_VFLIP)
vflip = !vflip;
- ret = reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
+ reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
data = (hflip ? 0x08 : 0x00) | (vflip ? 0x04 : 0x00);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x21, data);
+ reg_w(gspca_dev, 0x21, data);
+
/* load registers to sensor (Bit 0, auto clear) */
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x11, 0x01);
- return ret;
+ reg_w(gspca_dev, 0x11, 0x01);
}
/* this function is called at probe and resume time for pac7302 */
static int sd_init(struct gspca_dev *gspca_dev)
{
- return reg_w_seq(gspca_dev, init_7302, sizeof(init_7302)/2);
+ reg_w_seq(gspca_dev, init_7302, sizeof(init_7302)/2);
+ return gspca_dev->usb_err;
}
static int sd_start(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
- int ret = 0;
sd->sof_read = 0;
- ret = reg_w_var(gspca_dev, start_7302,
- page3_7302, sizeof(page3_7302),
- NULL, 0);
- if (0 <= ret)
- ret = setbrightcont(gspca_dev);
- if (0 <= ret)
- ret = setcolors(gspca_dev);
- if (0 <= ret)
- ret = setwhitebalance(gspca_dev);
- if (0 <= ret)
- ret = setredbalance(gspca_dev);
- if (0 <= ret)
- ret = setbluebalance(gspca_dev);
- if (0 <= ret)
- ret = setgain(gspca_dev);
- if (0 <= ret)
- ret = setexposure(gspca_dev);
- if (0 <= ret)
- ret = sethvflip(gspca_dev);
+ reg_w_var(gspca_dev, start_7302,
+ page3_7302, sizeof(page3_7302));
+ setbrightcont(gspca_dev);
+ setcolors(gspca_dev);
+ setwhitebalance(gspca_dev);
+ setredbalance(gspca_dev);
+ setbluebalance(gspca_dev);
+ setgain(gspca_dev);
+ setexposure(gspca_dev);
+ sethvflip(gspca_dev);
/* only resolution 640x480 is supported for pac7302 */
@@ -771,34 +730,27 @@ static int sd_start(struct gspca_dev *gspca_dev)
atomic_set(&sd->avg_lum, -1);
/* start stream */
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0xff, 0x01);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x78, 0x01);
+ reg_w(gspca_dev, 0xff, 0x01);
+ reg_w(gspca_dev, 0x78, 0x01);
- return ret;
+ return gspca_dev->usb_err;
}
static void sd_stopN(struct gspca_dev *gspca_dev)
{
- int ret;
/* stop stream */
- ret = reg_w(gspca_dev, 0xff, 0x01);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x78, 0x00);
+ reg_w(gspca_dev, 0xff, 0x01);
+ reg_w(gspca_dev, 0x78, 0x00);
}
/* called on streamoff with alt 0 and on disconnect for pac7302 */
static void sd_stop0(struct gspca_dev *gspca_dev)
{
- int ret;
-
if (!gspca_dev->present)
return;
- ret = reg_w(gspca_dev, 0xff, 0x01);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x78, 0x40);
+ reg_w(gspca_dev, 0xff, 0x01);
+ reg_w(gspca_dev, 0x78, 0x40);
}
/* Include pac common sof detection functions */
@@ -808,22 +760,13 @@ 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, deadzone;
+ int desired_lum;
+ const int deadzone = 30;
if (avg_lum == -1)
return;
- 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;
+ desired_lum = 270 + sd->brightness;
if (sd->autogain_ignore_frames > 0)
sd->autogain_ignore_frames--;
@@ -947,7 +890,7 @@ static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
sd->brightness = val;
if (gspca_dev->streaming)
setbrightcont(gspca_dev);
- return 0;
+ return gspca_dev->usb_err;
}
static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
@@ -966,7 +909,7 @@ static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
if (gspca_dev->streaming) {
setbrightcont(gspca_dev);
}
- return 0;
+ return gspca_dev->usb_err;
}
static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
@@ -984,7 +927,7 @@ static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
sd->colors = val;
if (gspca_dev->streaming)
setcolors(gspca_dev);
- return 0;
+ return gspca_dev->usb_err;
}
static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
@@ -998,14 +941,11 @@ static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
static int sd_setwhitebalance(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
- int ret = 0;
sd->white_balance = val;
if (gspca_dev->streaming)
- ret = setwhitebalance(gspca_dev);
- if (0 <= ret)
- ret = 0;
- return ret;
+ setwhitebalance(gspca_dev);
+ return gspca_dev->usb_err;
}
static int sd_getwhitebalance(struct gspca_dev *gspca_dev, __s32 *val)
@@ -1019,14 +959,11 @@ static int sd_getwhitebalance(struct gspca_dev *gspca_dev, __s32 *val)
static int sd_setredbalance(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
- int ret = 0;
sd->red_balance = val;
if (gspca_dev->streaming)
- ret = setredbalance(gspca_dev);
- if (0 <= ret)
- ret = 0;
- return ret;
+ setredbalance(gspca_dev);
+ return gspca_dev->usb_err;
}
static int sd_getredbalance(struct gspca_dev *gspca_dev, __s32 *val)
@@ -1040,14 +977,11 @@ static int sd_getredbalance(struct gspca_dev *gspca_dev, __s32 *val)
static int sd_setbluebalance(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
- int ret = 0;
sd->blue_balance = val;
if (gspca_dev->streaming)
- ret = setbluebalance(gspca_dev);
- if (0 <= ret)
- ret = 0;
- return ret;
+ setbluebalance(gspca_dev);
+ return gspca_dev->usb_err;
}
static int sd_getbluebalance(struct gspca_dev *gspca_dev, __s32 *val)
@@ -1065,7 +999,7 @@ static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val)
sd->gain = val;
if (gspca_dev->streaming)
setgain(gspca_dev);
- return 0;
+ return gspca_dev->usb_err;
}
static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val)
@@ -1083,7 +1017,7 @@ static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val)
sd->exposure = val;
if (gspca_dev->streaming)
setexposure(gspca_dev);
- return 0;
+ return gspca_dev->usb_err;
}
static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val)
@@ -1114,7 +1048,7 @@ static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
}
}
- return 0;
+ return gspca_dev->usb_err;
}
static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
@@ -1132,7 +1066,7 @@ static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val)
sd->hflip = val;
if (gspca_dev->streaming)
sethvflip(gspca_dev);
- return 0;
+ return gspca_dev->usb_err;
}
static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val)
@@ -1150,7 +1084,7 @@ static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val)
sd->vflip = val;
if (gspca_dev->streaming)
sethvflip(gspca_dev);
- return 0;
+ return gspca_dev->usb_err;
}
static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val)
@@ -1165,7 +1099,6 @@ static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val)
static int sd_dbg_s_register(struct gspca_dev *gspca_dev,
struct v4l2_dbg_register *reg)
{
- int ret = -EINVAL;
__u8 index;
__u8 value;
@@ -1185,14 +1118,12 @@ static int sd_dbg_s_register(struct gspca_dev *gspca_dev,
/* Note that there shall be no access to other page
by any other function between the page swith and
the actual register write */
- ret = reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
- if (0 <= ret)
- ret = reg_w(gspca_dev, index, value);
+ reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
+ reg_w(gspca_dev, index, value);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0xdc, 0x01);
+ reg_w(gspca_dev, 0xdc, 0x01);
}
- return ret;
+ return gspca_dev->usb_err;
}
static int sd_chip_ident(struct gspca_dev *gspca_dev,
@@ -1210,8 +1141,39 @@ static int sd_chip_ident(struct gspca_dev *gspca_dev,
}
#endif
+#ifdef CONFIG_INPUT
+static int sd_int_pkt_scan(struct gspca_dev *gspca_dev,
+ u8 *data, /* interrupt packet data */
+ int len) /* interrput packet length */
+{
+ int ret = -EINVAL;
+ u8 data0, data1;
+
+ if (len == 2) {
+ data0 = data[0];
+ data1 = data[1];
+ if ((data0 == 0x00 && data1 == 0x11) ||
+ (data0 == 0x22 && data1 == 0x33) ||
+ (data0 == 0x44 && data1 == 0x55) ||
+ (data0 == 0x66 && data1 == 0x77) ||
+ (data0 == 0x88 && data1 == 0x99) ||
+ (data0 == 0xaa && data1 == 0xbb) ||
+ (data0 == 0xcc && data1 == 0xdd) ||
+ (data0 == 0xee && data1 == 0xff)) {
+ input_report_key(gspca_dev->input_dev, KEY_CAMERA, 1);
+ input_sync(gspca_dev->input_dev);
+ input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0);
+ input_sync(gspca_dev->input_dev);
+ ret = 0;
+ }
+ }
+
+ return ret;
+}
+#endif
+
/* sub-driver description for pac7302 */
-static struct sd_desc sd_desc = {
+static const struct sd_desc sd_desc = {
.name = MODULE_NAME,
.ctrls = sd_ctrls,
.nctrls = ARRAY_SIZE(sd_ctrls),
@@ -1226,6 +1188,9 @@ static struct sd_desc sd_desc = {
.set_register = sd_dbg_s_register,
.get_chip_ident = sd_chip_ident,
#endif
+#ifdef CONFIG_INPUT
+ .int_pkt_scan = sd_int_pkt_scan,
+#endif
};
/* -- module initialisation -- */
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-21 16:34:02 +0000