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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.c251
1 files changed, 118 insertions, 133 deletions
diff --git a/drivers/media/video/gspca/pac7311.c b/drivers/media/video/gspca/pac7311.c
index 42cfcdfd8f4f..44fed9686729 100644
--- a/drivers/media/video/gspca/pac7311.c
+++ b/drivers/media/video/gspca/pac7311.c
@@ -51,6 +51,7 @@
#define MODULE_NAME "pac7311"
+#include <linux/input.h>
#include "gspca.h"
MODULE_AUTHOR("Thomas Kaiser thomas@kaiser-linux.li");
@@ -88,7 +89,7 @@ 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[] = {
+static const struct ctrl sd_ctrls[] = {
/* This control is for both the 7302 and the 7311 */
{
{
@@ -200,7 +201,6 @@ static const struct v4l2_pix_format vga_mode[] = {
.priv = 0},
};
-#define LOAD_PAGE3 255
#define LOAD_PAGE4 254
#define END_OF_SEQUENCE 0
@@ -259,12 +259,14 @@ static const __u8 page4_7311[] = {
0x23, 0x28, 0x04, 0x11, 0x00, 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),
@@ -273,20 +275,23 @@ 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),
@@ -294,32 +299,32 @@ 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;
@@ -335,56 +340,47 @@ 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)
{
int index, len;
- int ret = 0;
for (;;) {
index = *seq++;
len = *seq++;
switch (len) {
case END_OF_SEQUENCE:
- return ret;
+ return;
case LOAD_PAGE4:
- ret = reg_w_page(gspca_dev, page4, page4_len);
- break;
- case LOAD_PAGE3:
- ret = reg_w_page(gspca_dev, page3, page3_len);
+ reg_w_page(gspca_dev, page4, page4_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 */
}
@@ -412,46 +408,36 @@ static int sd_config(struct gspca_dev *gspca_dev,
}
/* This function is used by pac7311 only */
-static int setcontrast(struct gspca_dev *gspca_dev)
+static void setcontrast(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
- int ret;
- ret = reg_w(gspca_dev, 0xff, 0x04);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x10, sd->contrast >> 4);
+ reg_w(gspca_dev, 0xff, 0x04);
+ reg_w(gspca_dev, 0x10, sd->contrast >> 4);
/* 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 setgain(struct gspca_dev *gspca_dev)
+static void setgain(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int gain = GAIN_MAX - sd->gain;
- int ret;
if (gain < 1)
gain = 1;
else if (gain > 245)
gain = 245;
- ret = reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x0e, 0x00);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x0f, gain);
+ reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
+ reg_w(gspca_dev, 0x0e, 0x00);
+ reg_w(gspca_dev, 0x0f, gain);
/* 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
@@ -463,94 +449,72 @@ static int setexposure(struct gspca_dev *gspca_dev)
else if (reg > 63)
reg = 63;
- ret = reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x02, reg);
+ 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 */
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0xff, 0x01);
+ reg_w(gspca_dev, 0xff, 0x01);
if (gspca_dev->cam.cam_mode[(int)gspca_dev->curr_mode].priv &&
reg <= 3) {
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x08, 0x09);
+ reg_w(gspca_dev, 0x08, 0x09);
} else {
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x08, 0x08);
+ reg_w(gspca_dev, 0x08, 0x08);
}
/* 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;
- ret = reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
+ reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
data = (sd->hflip ? 0x04 : 0x00) | (sd->vflip ? 0x08 : 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 pac7311 */
static int sd_init(struct gspca_dev *gspca_dev)
{
- return reg_w_seq(gspca_dev, init_7311, sizeof(init_7311)/2);
+ reg_w_seq(gspca_dev, init_7311, sizeof(init_7311)/2);
+ return gspca_dev->usb_err;
}
static int sd_start(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
- int ret;
sd->sof_read = 0;
- ret = reg_w_var(gspca_dev, start_7311,
- NULL, 0,
+ reg_w_var(gspca_dev, start_7311,
page4_7311, sizeof(page4_7311));
- if (0 <= ret)
- ret = setcontrast(gspca_dev);
- if (0 <= ret)
- ret = setgain(gspca_dev);
- if (0 <= ret)
- ret = setexposure(gspca_dev);
- if (0 <= ret)
- ret = sethvflip(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 */
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0xff, 0x01);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x17, 0x20);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x87, 0x10);
+ reg_w(gspca_dev, 0xff, 0x01);
+ reg_w(gspca_dev, 0x17, 0x20);
+ reg_w(gspca_dev, 0x87, 0x10);
break;
case 1: /* 320x240 pac7311 */
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0xff, 0x01);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x17, 0x30);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x87, 0x11);
+ reg_w(gspca_dev, 0xff, 0x01);
+ reg_w(gspca_dev, 0x17, 0x30);
+ reg_w(gspca_dev, 0x87, 0x11);
break;
case 0: /* 640x480 */
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0xff, 0x01);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x17, 0x00);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x87, 0x12);
+ reg_w(gspca_dev, 0xff, 0x01);
+ reg_w(gspca_dev, 0x17, 0x00);
+ reg_w(gspca_dev, 0x87, 0x12);
break;
}
@@ -559,37 +523,24 @@ 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, 0x05);
+ reg_w(gspca_dev, 0xff, 0x01);
+ reg_w(gspca_dev, 0x78, 0x05);
- return ret;
+ return gspca_dev->usb_err;
}
static void sd_stopN(struct gspca_dev *gspca_dev)
{
- int ret;
-
- ret = reg_w(gspca_dev, 0xff, 0x04);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x27, 0x80);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x28, 0xca);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x29, 0x53);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x2a, 0x0e);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0xff, 0x01);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x3e, 0x20);
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
- if (0 <= ret)
- ret = reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
+ reg_w(gspca_dev, 0xff, 0x04);
+ reg_w(gspca_dev, 0x27, 0x80);
+ reg_w(gspca_dev, 0x28, 0xca);
+ reg_w(gspca_dev, 0x29, 0x53);
+ reg_w(gspca_dev, 0x2a, 0x0e);
+ reg_w(gspca_dev, 0xff, 0x01);
+ reg_w(gspca_dev, 0x3e, 0x20);
+ 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 */
}
/* called on streamoff with alt 0 and on disconnect for 7311 */
@@ -734,7 +685,7 @@ static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
if (gspca_dev->streaming) {
setcontrast(gspca_dev);
}
- return 0;
+ return gspca_dev->usb_err;
}
static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
@@ -752,7 +703,7 @@ 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)
@@ -770,7 +721,7 @@ 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)
@@ -801,7 +752,7 @@ 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)
@@ -819,7 +770,7 @@ 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)
@@ -837,7 +788,7 @@ 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)
@@ -848,8 +799,39 @@ static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val)
return 0;
}
+#ifdef CONFIG_INPUT
+static int sd_int_pkt_scan(struct gspca_dev *gspca_dev,
+ u8 *data, /* interrupt packet data */
+ int len) /* interrupt 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 pac7311 */
-static struct sd_desc sd_desc = {
+static const struct sd_desc sd_desc = {
.name = MODULE_NAME,
.ctrls = sd_ctrls,
.nctrls = ARRAY_SIZE(sd_ctrls),
@@ -860,6 +842,9 @@ static struct sd_desc sd_desc = {
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
.dq_callback = do_autogain,
+#ifdef CONFIG_INPUT
+ .int_pkt_scan = sd_int_pkt_scan,
+#endif
};
/* -- module initialisation -- */
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-26 23:50:00 +0000