// SPDX-License-Identifier: GPL-2.0-or-later
/*
* T613 subdriver
*
* Copyright ( C ) 2010 Jean - Francois Moine ( http : //moinejf.free.fr)
*
* Notes : * t613 + tas5130A
* * Focus to light do not balance well as in win .
* Quality in win is not good , but its kinda better .
* * Fix some " extraneous bytes " , most of apps will show the image anyway
* * Gamma table , is there , but its really doing something ?
* * 7 ~ 8 Fps , its ok , max on win its 10 .
* Costantino Leandro
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#define MODULE_NAME "t613"
#include <linux/input.h>
#include <linux/slab.h>
#include "gspca.h"
MODULE_AUTHOR("Leandro Costantino <le_costantino@pixartargentina.com.ar>" );
MODULE_DESCRIPTION("GSPCA/T613 (JPEG Compliance) USB Camera Driver" );
MODULE_LICENSE("GPL" );
struct sd {
struct gspca_dev gspca_dev; /* !! must be the first item */
struct v4l2_ctrl *freq;
struct { /* awb / color gains control cluster */
struct v4l2_ctrl *awb;
struct v4l2_ctrl *gain;
struct v4l2_ctrl *red_balance;
struct v4l2_ctrl *blue_balance;
};
u8 sensor;
u8 button_pressed;
};
enum sensors {
SENSOR_OM6802,
SENSOR_OTHER,
SENSOR_TAS5130A,
SENSOR_LT168G, /* must verify if this is the actual model */
};
static const struct v4l2_pix_format vga_mode_t16[] = {
{160 , 120 , V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
.bytesperline = 160 ,
.sizeimage = 160 * 120 * 4 / 8 + 590 ,
.colorspace = V4L2_COLORSPACE_JPEG,
.priv = 4 },
#if 0 /* HDG: broken with my test cam, so lets disable it */
{176 , 144 , V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
.bytesperline = 176 ,
.sizeimage = 176 * 144 * 3 / 8 + 590 ,
.colorspace = V4L2_COLORSPACE_JPEG,
.priv = 3 },
#endif
{320 , 240 , V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
.bytesperline = 320 ,
.sizeimage = 320 * 240 * 3 / 8 + 590 ,
.colorspace = V4L2_COLORSPACE_JPEG,
.priv = 2 },
#if 0 /* HDG: broken with my test cam, so lets disable it */
{352 , 288 , V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
.bytesperline = 352 ,
.sizeimage = 352 * 288 * 3 / 8 + 590 ,
.colorspace = V4L2_COLORSPACE_JPEG,
.priv = 1 },
#endif
{640 , 480 , V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
.bytesperline = 640 ,
.sizeimage = 640 * 480 * 3 / 8 + 590 ,
.colorspace = V4L2_COLORSPACE_JPEG,
.priv = 0 },
};
/* sensor specific data */
struct additional_sensor_data {
const u8 n3[6 ];
const u8 *n4, n4sz;
const u8 reg80, reg8e;
const u8 nset8[6 ];
const u8 data1[10 ];
const u8 data2[9 ];
const u8 data3[9 ];
const u8 data5[6 ];
const u8 stream[4 ];
};
static const u8 n4_om6802[] = {
0 x09, 0 x01, 0 x12, 0 x04, 0 x66, 0 x8a, 0 x80, 0 x3c,
0 x81, 0 x22, 0 x84, 0 x50, 0 x8a, 0 x78, 0 x8b, 0 x68,
0 x8c, 0 x88, 0 x8e, 0 x33, 0 x8f, 0 x24, 0 xaa, 0 xb1,
0 xa2, 0 x60, 0 xa5, 0 x30, 0 xa6, 0 x3a, 0 xa8, 0 xe8,
0 xae, 0 x05, 0 xb1, 0 x00, 0 xbb, 0 x04, 0 xbc, 0 x48,
0 xbe, 0 x36, 0 xc6, 0 x88, 0 xe9, 0 x00, 0 xc5, 0 xc0,
0 x65, 0 x0a, 0 xbb, 0 x86, 0 xaf, 0 x58, 0 xb0, 0 x68,
0 x87, 0 x40, 0 x89, 0 x2b, 0 x8d, 0 xff, 0 x83, 0 x40,
0 xac, 0 x84, 0 xad, 0 x86, 0 xaf, 0 x46
};
static const u8 n4_other[] = {
0 x66, 0 x00, 0 x7f, 0 x00, 0 x80, 0 xac, 0 x81, 0 x69,
0 x84, 0 x40, 0 x85, 0 x70, 0 x86, 0 x20, 0 x8a, 0 x68,
0 x8b, 0 x58, 0 x8c, 0 x88, 0 x8d, 0 xff, 0 x8e, 0 xb8,
0 x8f, 0 x28, 0 xa2, 0 x60, 0 xa5, 0 x40, 0 xa8, 0 xa8,
0 xac, 0 x84, 0 xad, 0 x84, 0 xae, 0 x24, 0 xaf, 0 x56,
0 xb0, 0 x68, 0 xb1, 0 x00, 0 xb2, 0 x88, 0 xbb, 0 xc5,
0 xbc, 0 x4a, 0 xbe, 0 x36, 0 xc2, 0 x88, 0 xc5, 0 xc0,
0 xc6, 0 xda, 0 xe9, 0 x26, 0 xeb, 0 x00
};
static const u8 n4_tas5130a[] = {
0 x80, 0 x3c, 0 x81, 0 x68, 0 x83, 0 xa0, 0 x84, 0 x20,
0 x8a, 0 x68, 0 x8b, 0 x58, 0 x8c, 0 x88, 0 x8e, 0 xb4,
0 x8f, 0 x24, 0 xa1, 0 xb1, 0 xa2, 0 x30, 0 xa5, 0 x10,
0 xa6, 0 x4a, 0 xae, 0 x03, 0 xb1, 0 x44, 0 xb2, 0 x08,
0 xb7, 0 x06, 0 xb9, 0 xe7, 0 xbb, 0 xc4, 0 xbc, 0 x4a,
0 xbe, 0 x36, 0 xbf, 0 xff, 0 xc2, 0 x88, 0 xc5, 0 xc8,
0 xc6, 0 xda
};
static const u8 n4_lt168g[] = {
0 x66, 0 x01, 0 x7f, 0 x00, 0 x80, 0 x7c, 0 x81, 0 x28,
0 x83, 0 x44, 0 x84, 0 x20, 0 x86, 0 x20, 0 x8a, 0 x70,
0 x8b, 0 x58, 0 x8c, 0 x88, 0 x8d, 0 xa0, 0 x8e, 0 xb3,
0 x8f, 0 x24, 0 xa1, 0 xb0, 0 xa2, 0 x38, 0 xa5, 0 x20,
0 xa6, 0 x4a, 0 xa8, 0 xe8, 0 xaf, 0 x38, 0 xb0, 0 x68,
0 xb1, 0 x44, 0 xb2, 0 x88, 0 xbb, 0 x86, 0 xbd, 0 x40,
0 xbe, 0 x26, 0 xc1, 0 x05, 0 xc2, 0 x88, 0 xc5, 0 xc0,
0 xda, 0 x8e, 0 xdb, 0 xca, 0 xdc, 0 xa8, 0 xdd, 0 x8c,
0 xde, 0 x44, 0 xdf, 0 x0c, 0 xe9, 0 x80
};
static const struct additional_sensor_data sensor_data[] = {
[SENSOR_OM6802] = {
.n3 =
{0 x61, 0 x68, 0 x65, 0 x0a, 0 x60, 0 x04},
.n4 = n4_om6802,
.n4sz = sizeof n4_om6802,
.reg80 = 0 x3c,
.reg8e = 0 x33,
.nset8 = {0 xa8, 0 xf0, 0 xc6, 0 x88, 0 xc0, 0 x00},
.data1 =
{0 xc2, 0 x28, 0 x0f, 0 x22, 0 xcd, 0 x27, 0 x2c, 0 x06,
0 xb3, 0 xfc},
.data2 =
{0 x80, 0 xff, 0 xff, 0 x80, 0 xff, 0 xff, 0 x80, 0 xff,
0 xff},
.data3 =
{0 x80, 0 xff, 0 xff, 0 x80, 0 xff, 0 xff, 0 x80, 0 xff,
0 xff},
.data5 = /* this could be removed later */
{0 x0c, 0 x03, 0 xab, 0 x13, 0 x81, 0 x23},
.stream =
{0 x0b, 0 x04, 0 x0a, 0 x78},
},
[SENSOR_OTHER] = {
.n3 =
{0 x61, 0 xc2, 0 x65, 0 x88, 0 x60, 0 x00},
.n4 = n4_other,
.n4sz = sizeof n4_other,
.reg80 = 0 xac,
.reg8e = 0 xb8,
.nset8 = {0 xa8, 0 xa8, 0 xc6, 0 xda, 0 xc0, 0 x00},
.data1 =
{0 xc1, 0 x48, 0 x04, 0 x1b, 0 xca, 0 x2e, 0 x33, 0 x3a,
0 xe8, 0 xfc},
.data2 =
{0 x4e, 0 x9c, 0 xec, 0 x40, 0 x80, 0 xc0, 0 x48, 0 x96,
0 xd9},
.data3 =
{0 x4e, 0 x9c, 0 xec, 0 x40, 0 x80, 0 xc0, 0 x48, 0 x96,
0 xd9},
.data5 =
{0 x0c, 0 x03, 0 xab, 0 x29, 0 x81, 0 x69},
.stream =
{0 x0b, 0 x04, 0 x0a, 0 x00},
},
[SENSOR_TAS5130A] = {
.n3 =
{0 x61, 0 xc2, 0 x65, 0 x0d, 0 x60, 0 x08},
.n4 = n4_tas5130a,
.n4sz = sizeof n4_tas5130a,
.reg80 = 0 x3c,
.reg8e = 0 xb4,
.nset8 = {0 xa8, 0 xf0, 0 xc6, 0 xda, 0 xc0, 0 x00},
.data1 =
{0 xbb, 0 x28, 0 x10, 0 x10, 0 xbb, 0 x28, 0 x1e, 0 x27,
0 xc8, 0 xfc},
.data2 =
{0 x60, 0 xa8, 0 xe0, 0 x60, 0 xa8, 0 xe0, 0 x60, 0 xa8,
0 xe0},
.data3 =
{0 x60, 0 xa8, 0 xe0, 0 x60, 0 xa8, 0 xe0, 0 x60, 0 xa8,
0 xe0},
.data5 =
{0 x0c, 0 x03, 0 xab, 0 x10, 0 x81, 0 x20},
.stream =
{0 x0b, 0 x04, 0 x0a, 0 x40},
},
[SENSOR_LT168G] = {
.n3 = {0 x61, 0 xc2, 0 x65, 0 x68, 0 x60, 0 x00},
.n4 = n4_lt168g,
.n4sz = sizeof n4_lt168g,
.reg80 = 0 x7c,
.reg8e = 0 xb3,
.nset8 = {0 xa8, 0 xf0, 0 xc6, 0 xba, 0 xc0, 0 x00},
.data1 = {0 xc0, 0 x38, 0 x08, 0 x10, 0 xc0, 0 x30, 0 x10, 0 x40,
0 xb0, 0 xf4},
.data2 = {0 x40, 0 x80, 0 xc0, 0 x50, 0 xa0, 0 xf0, 0 x53, 0 xa6,
0 xff},
.data3 = {0 x40, 0 x80, 0 xc0, 0 x50, 0 xa0, 0 xf0, 0 x53, 0 xa6,
0 xff},
.data5 = {0 x0c, 0 x03, 0 xab, 0 x4b, 0 x81, 0 x2b},
.stream = {0 x0b, 0 x04, 0 x0a, 0 x28},
},
};
#define MAX_EFFECTS 7
static const u8 effects_table[MAX_EFFECTS][6 ] = {
{0 xa8, 0 xe8, 0 xc6, 0 xd2, 0 xc0, 0 x00}, /* Normal */
{0 xa8, 0 xc8, 0 xc6, 0 x52, 0 xc0, 0 x04}, /* Repujar */
{0 xa8, 0 xe8, 0 xc6, 0 xd2, 0 xc0, 0 x20}, /* Monochrome */
{0 xa8, 0 xe8, 0 xc6, 0 xd2, 0 xc0, 0 x80}, /* Sepia */
{0 xa8, 0 xc8, 0 xc6, 0 x52, 0 xc0, 0 x02}, /* Croquis */
{0 xa8, 0 xc8, 0 xc6, 0 xd2, 0 xc0, 0 x10}, /* Sun Effect */
{0 xa8, 0 xc8, 0 xc6, 0 xd2, 0 xc0, 0 x40}, /* Negative */
};
#define GAMMA_MAX (15 )
static const u8 gamma_table[GAMMA_MAX+1 ][17 ] = {
/* gamma table from cam1690.ini */
{0 x00, 0 x00, 0 x01, 0 x04, 0 x08, 0 x0e, 0 x16, 0 x21, /* 0 */
0 x2e, 0 x3d, 0 x50, 0 x65, 0 x7d, 0 x99, 0 xb8, 0 xdb,
0 xff},
{0 x00, 0 x01, 0 x03, 0 x08, 0 x0e, 0 x16, 0 x21, 0 x2d, /* 1 */
0 x3c, 0 x4d, 0 x60, 0 x75, 0 x8d, 0 xa6, 0 xc2, 0 xe1,
0 xff},
{0 x00, 0 x01, 0 x05, 0 x0b, 0 x12, 0 x1c, 0 x28, 0 x35, /* 2 */
0 x45, 0 x56, 0 x69, 0 x7e, 0 x95, 0 xad, 0 xc7, 0 xe3,
0 xff},
{0 x00, 0 x02, 0 x07, 0 x0f, 0 x18, 0 x24, 0 x30, 0 x3f, /* 3 */
0 x4f, 0 x61, 0 x73, 0 x88, 0 x9d, 0 xb4, 0 xcd, 0 xe6,
0 xff},
{0 x00, 0 x04, 0 x0b, 0 x15, 0 x20, 0 x2d, 0 x3b, 0 x4a, /* 4 */
0 x5b, 0 x6c, 0 x7f, 0 x92, 0 xa7, 0 xbc, 0 xd2, 0 xe9,
0 xff},
{0 x00, 0 x07, 0 x11, 0 x15, 0 x20, 0 x2d, 0 x48, 0 x58, /* 5 */
0 x68, 0 x79, 0 x8b, 0 x9d, 0 xb0, 0 xc4, 0 xd7, 0 xec,
0 xff},
{0 x00, 0 x0c, 0 x1a, 0 x29, 0 x38, 0 x47, 0 x57, 0 x67, /* 6 */
0 x77, 0 x88, 0 x99, 0 xaa, 0 xbb, 0 xcc, 0 xdd, 0 xee,
0 xff},
{0 x00, 0 x10, 0 x20, 0 x30, 0 x40, 0 x50, 0 x60, 0 x70, /* 7 */
0 x80, 0 x90, 0 xa0, 0 xb0, 0 xc0, 0 xd0, 0 xe0, 0 xf0,
0 xff},
{0 x00, 0 x15, 0 x27, 0 x38, 0 x49, 0 x59, 0 x69, 0 x79, /* 8 */
0 x88, 0 x97, 0 xa7, 0 xb6, 0 xc4, 0 xd3, 0 xe2, 0 xf0,
0 xff},
{0 x00, 0 x1c, 0 x30, 0 x43, 0 x54, 0 x65, 0 x75, 0 x84, /* 9 */
0 x93, 0 xa1, 0 xb0, 0 xbd, 0 xca, 0 xd8, 0 xe5, 0 xf2,
0 xff},
{0 x00, 0 x24, 0 x3b, 0 x4f, 0 x60, 0 x70, 0 x80, 0 x8e, /* 10 */
0 x9c, 0 xaa, 0 xb7, 0 xc4, 0 xd0, 0 xdc, 0 xe8, 0 xf3,
0 xff},
{0 x00, 0 x2a, 0 x3c, 0 x5d, 0 x6e, 0 x7e, 0 x8d, 0 x9b, /* 11 */
0 xa8, 0 xb4, 0 xc0, 0 xcb, 0 xd6, 0 xe1, 0 xeb, 0 xf5,
0 xff},
{0 x00, 0 x3f, 0 x5a, 0 x6e, 0 x7f, 0 x8e, 0 x9c, 0 xa8, /* 12 */
0 xb4, 0 xbf, 0 xc9, 0 xd3, 0 xdc, 0 xe5, 0 xee, 0 xf6,
0 xff},
{0 x00, 0 x54, 0 x6f, 0 x83, 0 x93, 0 xa0, 0 xad, 0 xb7, /* 13 */
0 xc2, 0 xcb, 0 xd4, 0 xdc, 0 xe4, 0 xeb, 0 xf2, 0 xf9,
0 xff},
{0 x00, 0 x6e, 0 x88, 0 x9a, 0 xa8, 0 xb3, 0 xbd, 0 xc6, /* 14 */
0 xcf, 0 xd6, 0 xdd, 0 xe3, 0 xe9, 0 xef, 0 xf4, 0 xfa,
0 xff},
{0 x00, 0 x93, 0 xa8, 0 xb7, 0 xc1, 0 xca, 0 xd2, 0 xd8, /* 15 */
0 xde, 0 xe3, 0 xe8, 0 xed, 0 xf1, 0 xf5, 0 xf8, 0 xfc,
0 xff}
};
static const u8 tas5130a_sensor_init[][8 ] = {
{0 x62, 0 x08, 0 x63, 0 x70, 0 x64, 0 x1d, 0 x60, 0 x09},
{0 x62, 0 x20, 0 x63, 0 x01, 0 x64, 0 x02, 0 x60, 0 x09},
{0 x62, 0 x07, 0 x63, 0 x03, 0 x64, 0 x00, 0 x60, 0 x09},
};
static u8 sensor_reset[] = {0 x61, 0 x68, 0 x62, 0 xff, 0 x60, 0 x07};
/* read 1 byte */
static u8 reg_r(struct gspca_dev *gspca_dev,
u16 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,
u16 index)
{
usb_control_msg(gspca_dev->dev,
usb_sndctrlpipe(gspca_dev->dev, 0 ),
0 ,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0 , index,
NULL, 0 , 500 );
}
static void reg_w_buf(struct gspca_dev *gspca_dev,
const u8 *buffer, u16 len)
{
if (len <= USB_BUF_SZ) {
memcpy(gspca_dev->usb_buf, buffer, len);
usb_control_msg(gspca_dev->dev,
usb_sndctrlpipe(gspca_dev->dev, 0 ),
0 ,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0 x01, 0 ,
gspca_dev->usb_buf, len, 500 );
} else {
u8 *tmpbuf;
tmpbuf = kmemdup(buffer, len, GFP_KERNEL);
if (!tmpbuf) {
pr_err("Out of memory\n" );
return ;
}
usb_control_msg(gspca_dev->dev,
usb_sndctrlpipe(gspca_dev->dev, 0 ),
0 ,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0 x01, 0 ,
tmpbuf, len, 500 );
kfree(tmpbuf);
}
}
/* write values to consecutive registers */
static void reg_w_ixbuf(struct gspca_dev *gspca_dev,
u8 reg,
const u8 *buffer, u16 len)
{
int i;
u8 *p, *tmpbuf;
if (len * 2 <= USB_BUF_SZ) {
p = tmpbuf = gspca_dev->usb_buf;
} else {
p = tmpbuf = kmalloc_array(len, 2 , GFP_KERNEL);
if (!tmpbuf) {
pr_err("Out of memory\n" );
return ;
}
}
i = len;
while (--i >= 0 ) {
*p++ = reg++;
*p++ = *buffer++;
}
usb_control_msg(gspca_dev->dev,
usb_sndctrlpipe(gspca_dev->dev, 0 ),
0 ,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0 x01, 0 ,
tmpbuf, len * 2 , 500 );
if (len * 2 > USB_BUF_SZ)
kfree(tmpbuf);
}
static void om6802_sensor_init(struct gspca_dev *gspca_dev)
{
int i;
const u8 *p;
u8 byte;
u8 val[6 ] = {0 x62, 0 , 0 x64, 0 , 0 x60, 0 x05};
static const u8 sensor_init[] = {
0 xdf, 0 x6d,
0 xdd, 0 x18,
0 x5a, 0 xe0,
0 x5c, 0 x07,
0 x5d, 0 xb0,
0 x5e, 0 x1e,
0 x60, 0 x71,
0 xef, 0 x00,
0 xe9, 0 x00,
0 xea, 0 x00,
0 x90, 0 x24,
0 x91, 0 xb2,
0 x82, 0 x32,
0 xfd, 0 x41,
0 x00 /* table end */
};
reg_w_buf(gspca_dev, sensor_reset, sizeof sensor_reset);
msleep(100 );
i = 4 ;
while (--i > 0 ) {
byte = reg_r(gspca_dev, 0 x0060);
if (!(byte & 0 x01))
break ;
msleep(100 );
}
byte = reg_r(gspca_dev, 0 x0063);
if (byte != 0 x17) {
pr_err("Bad sensor reset %02x\n" , byte);
/* continue? */
}
p = sensor_init;
while (*p != 0 ) {
val[1 ] = *p++;
val[3 ] = *p++;
if (*p == 0 )
reg_w(gspca_dev, 0 x3c80);
reg_w_buf(gspca_dev, val, sizeof val);
i = 4 ;
while (--i >= 0 ) {
msleep(15 );
byte = reg_r(gspca_dev, 0 x60);
if (!(byte & 0 x01))
break ;
}
}
msleep(15 );
reg_w(gspca_dev, 0 x3c80);
}
/* this function is called at probe time */
static int sd_config(struct gspca_dev *gspca_dev,
const struct usb_device_id *id)
{
struct cam *cam = &gspca_dev->cam;
cam->cam_mode = vga_mode_t16;
cam->nmodes = ARRAY_SIZE(vga_mode_t16);
return 0 ;
}
static void setbrightness(struct gspca_dev *gspca_dev, s32 brightness)
{
u8 set6[4 ] = { 0 x8f, 0 x24, 0 xc3, 0 x00 };
if (brightness < 7 ) {
set6[1 ] = 0 x26;
set6[3 ] = 0 x70 - brightness * 0 x10;
} else {
set6[3 ] = 0 x00 + ((brightness - 7 ) * 0 x10);
}
reg_w_buf(gspca_dev, set6, sizeof set6);
}
static void setcontrast(struct gspca_dev *gspca_dev, s32 contrast)
{
u16 reg_to_write;
if (contrast < 7 )
reg_to_write = 0 x8ea9 - contrast * 0 x200;
else
reg_to_write = 0 x00a9 + (contrast - 7 ) * 0 x200;
reg_w(gspca_dev, reg_to_write);
}
static void setcolors(struct gspca_dev *gspca_dev, s32 val)
{
u16 reg_to_write;
reg_to_write = 0 x80bb + val * 0 x100; /* was 0xc0 */
reg_w(gspca_dev, reg_to_write);
}
static void setgamma(struct gspca_dev *gspca_dev, s32 val)
{
gspca_dbg(gspca_dev, D_CONF, "Gamma: %d\n" , val);
reg_w_ixbuf(gspca_dev, 0 x90,
gamma_table[val], sizeof gamma_table[0 ]);
}
static void setawb_n_RGB(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 all_gain_reg[8 ] = {
0 x87, 0 x00, 0 x88, 0 x00, 0 x89, 0 x00, 0 x80, 0 x00 };
s32 red_gain, blue_gain, green_gain;
green_gain = sd->gain->val;
red_gain = green_gain + sd->red_balance->val;
if (red_gain > 0 x40)
red_gain = 0 x40;
else if (red_gain < 0 x10)
red_gain = 0 x10;
blue_gain = green_gain + sd->blue_balance->val;
if (blue_gain > 0 x40)
blue_gain = 0 x40;
else if (blue_gain < 0 x10)
blue_gain = 0 x10;
all_gain_reg[1 ] = red_gain;
all_gain_reg[3 ] = blue_gain;
all_gain_reg[5 ] = green_gain;
all_gain_reg[7 ] = sensor_data[sd->sensor].reg80;
if (!sd->awb->val)
all_gain_reg[7 ] &= ~0 x04; /* AWB off */
reg_w_buf(gspca_dev, all_gain_reg, sizeof all_gain_reg);
}
static void setsharpness(struct gspca_dev *gspca_dev, s32 val)
{
u16 reg_to_write;
reg_to_write = 0 x0aa6 + 0 x1000 * val;
reg_w(gspca_dev, reg_to_write);
}
static void setfreq(struct gspca_dev *gspca_dev, s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 reg66;
u8 freq[4 ] = { 0 x66, 0 x00, 0 xa8, 0 xe8 };
switch (sd->sensor) {
case SENSOR_LT168G:
if (val != 0 )
freq[3 ] = 0 xa8;
reg66 = 0 x41;
break ;
case SENSOR_OM6802:
reg66 = 0 xca;
break ;
default :
reg66 = 0 x40;
break ;
}
switch (val) {
case 0 : /* no flicker */
freq[3 ] = 0 xf0;
break ;
case 2 : /* 60Hz */
reg66 &= ~0 x40;
break ;
}
freq[1 ] = reg66;
reg_w_buf(gspca_dev, freq, sizeof freq);
}
/* this function is called at probe and resume time */
static int sd_init(struct gspca_dev *gspca_dev)
{
/* some of this registers are not really needed, because
* they are overridden by setbrigthness , setcontrast , etc . ,
* but won ' t hurt anyway , and can help someone with similar webcam
* to see the initial parameters.*/
struct sd *sd = (struct sd *) gspca_dev;
const struct additional_sensor_data *sensor;
int i;
u16 sensor_id;
u8 test_byte = 0 ;
static const u8 read_indexs[] =
{ 0 x0a, 0 x0b, 0 x66, 0 x80, 0 x81, 0 x8e, 0 x8f, 0 xa5,
0 xa6, 0 xa8, 0 xbb, 0 xbc, 0 xc6, 0 x00 };
static const u8 n1[] =
{0 x08, 0 x03, 0 x09, 0 x03, 0 x12, 0 x04};
static const u8 n2[] =
{0 x08, 0 x00};
sensor_id = (reg_r(gspca_dev, 0 x06) << 8 )
| reg_r(gspca_dev, 0 x07);
switch (sensor_id & 0 xff0f) {
case 0 x0801:
gspca_dbg(gspca_dev, D_PROBE, "sensor tas5130a\n" );
sd->sensor = SENSOR_TAS5130A;
break ;
case 0 x0802:
gspca_dbg(gspca_dev, D_PROBE, "sensor lt168g\n" );
sd->sensor = SENSOR_LT168G;
break ;
case 0 x0803:
gspca_dbg(gspca_dev, D_PROBE, "sensor 'other'\n" );
sd->sensor = SENSOR_OTHER;
break ;
case 0 x0807:
gspca_dbg(gspca_dev, D_PROBE, "sensor om6802\n" );
sd->sensor = SENSOR_OM6802;
break ;
default :
pr_err("unknown sensor %04x\n" , sensor_id);
return -EINVAL;
}
if (sd->sensor == SENSOR_OM6802) {
reg_w_buf(gspca_dev, n1, sizeof n1);
i = 5 ;
while (--i >= 0 ) {
reg_w_buf(gspca_dev, sensor_reset, sizeof sensor_reset);
test_byte = reg_r(gspca_dev, 0 x0063);
msleep(100 );
if (test_byte == 0 x17)
break ; /* OK */
}
if (i < 0 ) {
pr_err("Bad sensor reset %02x\n" , test_byte);
return -EIO;
}
reg_w_buf(gspca_dev, n2, sizeof n2);
}
i = 0 ;
while (read_indexs[i] != 0 x00) {
test_byte = reg_r(gspca_dev, read_indexs[i]);
gspca_dbg(gspca_dev, D_STREAM, "Reg 0x%02x = 0x%02x\n" ,
read_indexs[i], test_byte);
i++;
}
sensor = &sensor_data[sd->sensor];
reg_w_buf(gspca_dev, sensor->n3, sizeof sensor->n3);
reg_w_buf(gspca_dev, sensor->n4, sensor->n4sz);
if (sd->sensor == SENSOR_LT168G) {
test_byte = reg_r(gspca_dev, 0 x80);
gspca_dbg(gspca_dev, D_STREAM, "Reg 0x%02x = 0x%02x\n" , 0 x80,
test_byte);
reg_w(gspca_dev, 0 x6c80);
}
reg_w_ixbuf(gspca_dev, 0 xd0, sensor->data1, sizeof sensor->data1);
reg_w_ixbuf(gspca_dev, 0 xc7, sensor->data2, sizeof sensor->data2);
reg_w_ixbuf(gspca_dev, 0 xe0, sensor->data3, sizeof sensor->data3);
reg_w(gspca_dev, (sensor->reg80 << 8 ) + 0 x80);
reg_w(gspca_dev, (sensor->reg80 << 8 ) + 0 x80);
reg_w(gspca_dev, (sensor->reg8e << 8 ) + 0 x8e);
reg_w(gspca_dev, (0 x20 << 8 ) + 0 x87);
reg_w(gspca_dev, (0 x20 << 8 ) + 0 x88);
reg_w(gspca_dev, (0 x20 << 8 ) + 0 x89);
reg_w_buf(gspca_dev, sensor->data5, sizeof sensor->data5);
reg_w_buf(gspca_dev, sensor->nset8, sizeof sensor->nset8);
reg_w_buf(gspca_dev, sensor->stream, sizeof sensor->stream);
if (sd->sensor == SENSOR_LT168G) {
test_byte = reg_r(gspca_dev, 0 x80);
gspca_dbg(gspca_dev, D_STREAM, "Reg 0x%02x = 0x%02x\n" , 0 x80,
test_byte);
reg_w(gspca_dev, 0 x6c80);
}
reg_w_ixbuf(gspca_dev, 0 xd0, sensor->data1, sizeof sensor->data1);
reg_w_ixbuf(gspca_dev, 0 xc7, sensor->data2, sizeof sensor->data2);
reg_w_ixbuf(gspca_dev, 0 xe0, sensor->data3, sizeof sensor->data3);
return 0 ;
}
static void setmirror(struct gspca_dev *gspca_dev, s32 val)
{
u8 hflipcmd[8 ] =
{0 x62, 0 x07, 0 x63, 0 x03, 0 x64, 0 x00, 0 x60, 0 x09};
if (val)
hflipcmd[3 ] = 0 x01;
reg_w_buf(gspca_dev, hflipcmd, sizeof hflipcmd);
}
static void seteffect(struct gspca_dev *gspca_dev, s32 val)
{
int idx = 0 ;
switch (val) {
case V4L2_COLORFX_NONE:
break ;
case V4L2_COLORFX_BW:
idx = 2 ;
break ;
case V4L2_COLORFX_SEPIA:
idx = 3 ;
break ;
case V4L2_COLORFX_SKETCH:
idx = 4 ;
break ;
case V4L2_COLORFX_NEGATIVE:
idx = 6 ;
break ;
default :
break ;
}
reg_w_buf(gspca_dev, effects_table[idx],
sizeof effects_table[0 ]);
if (val == V4L2_COLORFX_SKETCH)
reg_w(gspca_dev, 0 x4aa6);
else
reg_w(gspca_dev, 0 xfaa6);
}
/* Is this really needed?
* i added some module parameters for test with some users */
static void poll_sensor(struct gspca_dev *gspca_dev)
{
static const u8 poll1[] =
{0 x67, 0 x05, 0 x68, 0 x81, 0 x69, 0 x80, 0 x6a, 0 x82,
0 x6b, 0 x68, 0 x6c, 0 x69, 0 x72, 0 xd9, 0 x73, 0 x34,
0 x74, 0 x32, 0 x75, 0 x92, 0 x76, 0 x00, 0 x09, 0 x01,
0 x60, 0 x14};
static const u8 poll2[] =
{0 x67, 0 x02, 0 x68, 0 x71, 0 x69, 0 x72, 0 x72, 0 xa9,
0 x73, 0 x02, 0 x73, 0 x02, 0 x60, 0 x14};
static const u8 noise03[] = /* (some differences / ms-drv) */
{0 xa6, 0 x0a, 0 xea, 0 xcf, 0 xbe, 0 x26, 0 xb1, 0 x5f,
0 xa1, 0 xb1, 0 xda, 0 x6b, 0 xdb, 0 x98, 0 xdf, 0 x0c,
0 xc2, 0 x80, 0 xc3, 0 x10};
gspca_dbg(gspca_dev, D_STREAM, "[Sensor requires polling]\n" );
reg_w_buf(gspca_dev, poll1, sizeof poll1);
reg_w_buf(gspca_dev, poll2, sizeof poll2);
reg_w_buf(gspca_dev, noise03, sizeof noise03);
}
static int sd_start(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
const struct additional_sensor_data *sensor;
int i, mode;
u8 t2[] = { 0 x07, 0 x00, 0 x0d, 0 x60, 0 x0e, 0 x80 };
static const u8 t3[] =
{ 0 x07, 0 x00, 0 x88, 0 x02, 0 x06, 0 x00, 0 xe7, 0 x01 };
mode = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
switch (mode) {
case 0 : /* 640x480 (0x00) */
break ;
case 1 : /* 352x288 */
t2[1 ] = 0 x40;
break ;
case 2 : /* 320x240 */
t2[1 ] = 0 x10;
break ;
case 3 : /* 176x144 */
t2[1 ] = 0 x50;
break ;
default :
/* case 4: * 160x120 */
t2[1 ] = 0 x20;
break ;
}
switch (sd->sensor) {
case SENSOR_OM6802:
om6802_sensor_init(gspca_dev);
break ;
case SENSOR_TAS5130A:
i = 0 ;
for (;;) {
reg_w_buf(gspca_dev, tas5130a_sensor_init[i],
sizeof tas5130a_sensor_init[0 ]);
if (i >= ARRAY_SIZE(tas5130a_sensor_init) - 1 )
break ;
i++;
}
reg_w(gspca_dev, 0 x3c80);
/* just in case and to keep sync with logs (for mine) */
reg_w_buf(gspca_dev, tas5130a_sensor_init[i],
sizeof tas5130a_sensor_init[0 ]);
reg_w(gspca_dev, 0 x3c80);
break ;
}
sensor = &sensor_data[sd->sensor];
setfreq(gspca_dev, v4l2_ctrl_g_ctrl(sd->freq));
reg_r(gspca_dev, 0 x0012);
reg_w_buf(gspca_dev, t2, sizeof t2);
reg_w_ixbuf(gspca_dev, 0 xb3, t3, sizeof t3);
reg_w(gspca_dev, 0 x0013);
msleep(15 );
reg_w_buf(gspca_dev, sensor->stream, sizeof sensor->stream);
reg_w_buf(gspca_dev, sensor->stream, sizeof sensor->stream);
if (sd->sensor == SENSOR_OM6802)
poll_sensor(gspca_dev);
return 0 ;
}
static void sd_stopN(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
reg_w_buf(gspca_dev, sensor_data[sd->sensor].stream,
sizeof sensor_data[sd->sensor].stream);
reg_w_buf(gspca_dev, sensor_data[sd->sensor].stream,
sizeof sensor_data[sd->sensor].stream);
if (sd->sensor == SENSOR_OM6802) {
msleep(20 );
reg_w(gspca_dev, 0 x0309);
}
#if IS_ENABLED(CONFIG_INPUT)
/* If the last button state is pressed, release it now! */
if (sd->button_pressed) {
input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0 );
input_sync(gspca_dev->input_dev);
sd->button_pressed = 0 ;
}
#endif
}
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
u8 *data, /* isoc packet */
int len) /* iso packet length */
{
struct sd *sd __maybe_unused = (struct sd *) gspca_dev;
int pkt_type;
if (data[0 ] == 0 x5a) {
#if IS_ENABLED(CONFIG_INPUT)
if (len > 20 ) {
u8 state = (data[20 ] & 0 x80) ? 1 : 0 ;
if (sd->button_pressed != state) {
input_report_key(gspca_dev->input_dev,
KEY_CAMERA, state);
input_sync(gspca_dev->input_dev);
sd->button_pressed = state;
}
}
#endif
/* Control Packet, after this came the header again,
* but extra bytes came in the packet before this ,
* sometimes an EOF arrives, sometimes not... */
return ;
}
data += 2 ;
len -= 2 ;
if (data[0 ] == 0 xff && data[1 ] == 0 xd8)
pkt_type = FIRST_PACKET;
else if (data[len - 2 ] == 0 xff && data[len - 1 ] == 0 xd9)
pkt_type = LAST_PACKET;
else
pkt_type = INTER_PACKET;
gspca_frame_add(gspca_dev, pkt_type, data, len);
}
static int sd_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
struct gspca_dev *gspca_dev =
container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
struct sd *sd = (struct sd *)gspca_dev;
s32 red_gain, blue_gain, green_gain;
gspca_dev->usb_err = 0 ;
switch (ctrl->id) {
case V4L2_CID_AUTO_WHITE_BALANCE:
red_gain = reg_r(gspca_dev, 0 x0087);
if (red_gain > 0 x40)
red_gain = 0 x40;
else if (red_gain < 0 x10)
red_gain = 0 x10;
blue_gain = reg_r(gspca_dev, 0 x0088);
if (blue_gain > 0 x40)
blue_gain = 0 x40;
else if (blue_gain < 0 x10)
blue_gain = 0 x10;
green_gain = reg_r(gspca_dev, 0 x0089);
if (green_gain > 0 x40)
green_gain = 0 x40;
else if (green_gain < 0 x10)
green_gain = 0 x10;
sd->gain->val = green_gain;
sd->red_balance->val = red_gain - green_gain;
sd->blue_balance->val = blue_gain - green_gain;
break ;
}
return 0 ;
}
static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct gspca_dev *gspca_dev =
container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
gspca_dev->usb_err = 0 ;
if (!gspca_dev->streaming)
return 0 ;
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
setbrightness(gspca_dev, ctrl->val);
break ;
case V4L2_CID_CONTRAST:
setcontrast(gspca_dev, ctrl->val);
break ;
case V4L2_CID_SATURATION:
setcolors(gspca_dev, ctrl->val);
break ;
case V4L2_CID_GAMMA:
setgamma(gspca_dev, ctrl->val);
break ;
case V4L2_CID_HFLIP:
setmirror(gspca_dev, ctrl->val);
break ;
case V4L2_CID_SHARPNESS:
setsharpness(gspca_dev, ctrl->val);
break ;
case V4L2_CID_POWER_LINE_FREQUENCY:
setfreq(gspca_dev, ctrl->val);
break ;
case V4L2_CID_BACKLIGHT_COMPENSATION:
reg_w(gspca_dev, ctrl->val ? 0 xf48e : 0 xb48e);
break ;
case V4L2_CID_AUTO_WHITE_BALANCE:
setawb_n_RGB(gspca_dev);
break ;
case V4L2_CID_COLORFX:
seteffect(gspca_dev, ctrl->val);
break ;
}
return gspca_dev->usb_err;
}
static const struct v4l2_ctrl_ops sd_ctrl_ops = {
.g_volatile_ctrl = sd_g_volatile_ctrl,
.s_ctrl = sd_s_ctrl,
};
static int sd_init_controls(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *)gspca_dev;
struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
gspca_dev->vdev.ctrl_handler = hdl;
v4l2_ctrl_handler_init(hdl, 12 );
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_BRIGHTNESS, 0 , 14 , 1 , 8 );
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_CONTRAST, 0 , 0 x0d, 1 , 7 );
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_SATURATION, 0 , 0 xf, 1 , 5 );
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_GAMMA, 0 , GAMMA_MAX, 1 , 10 );
/* Activate lowlight, some apps don't bring up the
backlight_compensation control) */
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_BACKLIGHT_COMPENSATION, 0 , 1 , 1 , 1 );
if (sd->sensor == SENSOR_TAS5130A)
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_HFLIP, 0 , 1 , 1 , 0 );
sd->awb = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_AUTO_WHITE_BALANCE, 0 , 1 , 1 , 1 );
sd->gain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_GAIN, 0 x10, 0 x40, 1 , 0 x20);
sd->blue_balance = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_BLUE_BALANCE, -0 x30, 0 x30, 1 , 0 );
sd->red_balance = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_RED_BALANCE, -0 x30, 0 x30, 1 , 0 );
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_SHARPNESS, 0 , 15 , 1 , 6 );
v4l2_ctrl_new_std_menu(hdl, &sd_ctrl_ops,
V4L2_CID_COLORFX, V4L2_COLORFX_SKETCH,
~((1 << V4L2_COLORFX_NONE) |
(1 << V4L2_COLORFX_BW) |
(1 << V4L2_COLORFX_SEPIA) |
(1 << V4L2_COLORFX_SKETCH) |
(1 << V4L2_COLORFX_NEGATIVE)),
V4L2_COLORFX_NONE);
sd->freq = v4l2_ctrl_new_std_menu(hdl, &sd_ctrl_ops,
V4L2_CID_POWER_LINE_FREQUENCY,
V4L2_CID_POWER_LINE_FREQUENCY_60HZ, 1 ,
V4L2_CID_POWER_LINE_FREQUENCY_50HZ);
if (hdl->error) {
pr_err("Could not initialize controls\n" );
return hdl->error;
}
v4l2_ctrl_auto_cluster(4 , &sd->awb, 0 , true );
return 0 ;
}
/* sub-driver description */
static const struct sd_desc sd_desc = {
.name = MODULE_NAME,
.config = sd_config,
.init = sd_init,
.init_controls = sd_init_controls,
.start = sd_start,
.stopN = sd_stopN,
.pkt_scan = sd_pkt_scan,
#if IS_ENABLED(CONFIG_INPUT)
.other_input = 1 ,
#endif
};
/* -- module initialisation -- */
static const struct usb_device_id device_table[] = {
{USB_DEVICE(0 x17a1, 0 x0128)},
{}
};
MODULE_DEVICE_TABLE(usb, device_table);
/* -- device connect -- */
static int sd_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
return gspca_dev_probe(intf, id, &sd_desc, sizeof (struct sd),
THIS_MODULE);
}
static struct usb_driver sd_driver = {
.name = MODULE_NAME,
.id_table = device_table,
.probe = sd_probe,
.disconnect = gspca_disconnect,
#ifdef CONFIG_PM
.suspend = gspca_suspend,
.resume = gspca_resume,
.reset_resume = gspca_resume,
#endif
};
module_usb_driver(sd_driver);
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(vorverarbeitet am 2026-10-02)
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