mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-18 01:34:14 +08:00
[media] gspca_touptek: Add support for ToupTek UCMOS series USB cameras
Adds support for AmScope MU800 / ToupTek UCMOS08000KPB USB microscope camera. Signed-off-by: John McMaster <johndmcmaster@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
John McMaster
Mauro Carvalho Chehab
parent
afad4dd50a
commit
7cc42d9f75
@ -395,6 +395,16 @@ config USB_GSPCA_TOPRO
|
||||
To compile this driver as a module, choose M here: the
|
||||
module will be called gspca_topro.
|
||||
|
||||
config USB_GSPCA_TOUPTEK
|
||||
tristate "Touptek USB Camera Driver"
|
||||
depends on VIDEO_V4L2 && USB_GSPCA
|
||||
help
|
||||
Say Y here if you want support for cameras based on the ToupTek UCMOS
|
||||
/ AmScope MU series camera.
|
||||
|
||||
To compile this driver as a module, choose M here: the
|
||||
module will be called gspca_touptek.
|
||||
|
||||
config USB_GSPCA_TV8532
|
||||
tristate "TV8532 USB Camera Driver"
|
||||
depends on VIDEO_V4L2 && USB_GSPCA
|
||||
|
||||
@ -39,6 +39,7 @@ obj-$(CONFIG_USB_GSPCA_STK1135) += gspca_stk1135.o
|
||||
obj-$(CONFIG_USB_GSPCA_STV0680) += gspca_stv0680.o
|
||||
obj-$(CONFIG_USB_GSPCA_T613) += gspca_t613.o
|
||||
obj-$(CONFIG_USB_GSPCA_TOPRO) += gspca_topro.o
|
||||
obj-$(CONFIG_USB_GSPCA_TOUPTEK) += gspca_touptek.o
|
||||
obj-$(CONFIG_USB_GSPCA_TV8532) += gspca_tv8532.o
|
||||
obj-$(CONFIG_USB_GSPCA_VC032X) += gspca_vc032x.o
|
||||
obj-$(CONFIG_USB_GSPCA_VICAM) += gspca_vicam.o
|
||||
@ -86,6 +87,7 @@ gspca_stv0680-objs := stv0680.o
|
||||
gspca_sunplus-objs := sunplus.o
|
||||
gspca_t613-objs := t613.o
|
||||
gspca_topro-objs := topro.o
|
||||
gspca_touptek-objs := touptek.o
|
||||
gspca_tv8532-objs := tv8532.o
|
||||
gspca_vc032x-objs := vc032x.o
|
||||
gspca_vicam-objs := vicam.o
|
||||
|
||||
732
drivers/media/usb/gspca/touptek.c
Normal file
732
drivers/media/usb/gspca/touptek.c
Normal file
@ -0,0 +1,732 @@
|
||||
/*
|
||||
* ToupTek UCMOS / AmScope MU series camera driver
|
||||
* TODO: contrast with ScopeTek / AmScope MDC cameras
|
||||
*
|
||||
* Copyright (C) 2012-2014 John McMaster <JohnDMcMaster@gmail.com>
|
||||
*
|
||||
* Special thanks to Bushing for helping with the decrypt algorithm and
|
||||
* Sean O'Sullivan / the Rensselaer Center for Open Source
|
||||
* Software (RCOS) for helping me learn kernel development
|
||||
*
|
||||
* 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
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
#include "gspca.h"
|
||||
|
||||
#define MODULE_NAME "touptek"
|
||||
|
||||
MODULE_AUTHOR("John McMaster");
|
||||
MODULE_DESCRIPTION("ToupTek UCMOS / Amscope MU microscope camera driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
/*
|
||||
Exposure reg is linear with exposure time
|
||||
Exposure (sec), E (reg)
|
||||
0.000400, 0x0002
|
||||
0.001000, 0x0005
|
||||
0.005000, 0x0019
|
||||
0.020000, 0x0064
|
||||
0.080000, 0x0190
|
||||
0.400000, 0x07D0
|
||||
1.000000, 0x1388
|
||||
2.000000, 0x2710
|
||||
|
||||
Three gain stages
|
||||
0x1000: master channel enable bit
|
||||
0x007F: low gain bits
|
||||
0x0080: medium gain bit
|
||||
0x0100: high gain bit
|
||||
gain = enable * (1 + regH) * (1 + regM) * z * regL
|
||||
|
||||
Gain implementation
|
||||
Want to do something similar to mt9v011.c's set_balance
|
||||
|
||||
Gain does not vary with resolution (checked 640x480 vs 1600x1200)
|
||||
|
||||
Constant derivation:
|
||||
|
||||
Raw data:
|
||||
Gain, GTOP, B, R, GBOT
|
||||
1.00, 0x105C, 0x1068, 0x10C8, 0x105C
|
||||
1.20, 0x106E, 0x107E, 0x10D6, 0x106E
|
||||
1.40, 0x10C0, 0x10CA, 0x10E5, 0x10C0
|
||||
1.60, 0x10C9, 0x10D4, 0x10F3, 0x10C9
|
||||
1.80, 0x10D2, 0x10DE, 0x11C1, 0x10D2
|
||||
2.00, 0x10DC, 0x10E9, 0x11C8, 0x10DC
|
||||
2.20, 0x10E5, 0x10F3, 0x11CF, 0x10E5
|
||||
2.40, 0x10EE, 0x10FE, 0x11D7, 0x10EE
|
||||
2.60, 0x10F7, 0x11C4, 0x11DE, 0x10F7
|
||||
2.80, 0x11C0, 0x11CA, 0x11E5, 0x11C0
|
||||
3.00, 0x11C5, 0x11CF, 0x11ED, 0x11C5
|
||||
|
||||
zR = 0.0069605943152454778
|
||||
about 3/431 = 0.0069605568445475635
|
||||
zB = 0.0095695970695970703
|
||||
about 6/627 = 0.0095693779904306216
|
||||
zG = 0.010889328063241107
|
||||
about 6/551 = 0.010889292196007259
|
||||
about 10 bits for constant + 7 bits for value => at least 17 bit intermediate
|
||||
with 32 bit ints should be fine for overflow etc
|
||||
Essentially gains are in range 0-0x001FF
|
||||
|
||||
However, V4L expects a main gain channel + R and B balance
|
||||
To keep things simple for now saturate the values of balance is too high/low
|
||||
This isn't really ideal but easy way to fit the Linux model
|
||||
|
||||
Converted using gain model turns out to be quite linear:
|
||||
Gain, GTOP, B, R, GBOT
|
||||
1.00, 92, 104, 144, 92
|
||||
1.20, 110, 126, 172, 110
|
||||
1.40, 128, 148, 202, 128
|
||||
1.60, 146, 168, 230, 146
|
||||
1.80, 164, 188, 260, 164
|
||||
2.00, 184, 210, 288, 184
|
||||
2.20, 202, 230, 316, 202
|
||||
2.40, 220, 252, 348, 220
|
||||
2.60, 238, 272, 376, 238
|
||||
2.80, 256, 296, 404, 256
|
||||
3.00, 276, 316, 436, 276
|
||||
|
||||
Maximum gain is 0x7FF * 2 * 2 => 0x1FFC (8188)
|
||||
or about 13 effective bits of gain
|
||||
The highest the commercial driver goes in my setup 436
|
||||
However, because could *maybe* damage circuits
|
||||
limit the gain until have a reason to go higher
|
||||
Solution: gain clipped and warning emitted
|
||||
*/
|
||||
#define GAIN_MAX 511
|
||||
|
||||
/* Frame sync is a short read */
|
||||
#define BULK_SIZE 0x4000
|
||||
|
||||
/* MT9E001 reg names to give a rough approximation */
|
||||
#define REG_COARSE_INTEGRATION_TIME_ 0x3012
|
||||
#define REG_GROUPED_PARAMETER_HOLD_ 0x3022
|
||||
#define REG_MODE_SELECT 0x0100
|
||||
#define REG_OP_SYS_CLK_DIV 0x030A
|
||||
#define REG_VT_SYS_CLK_DIV 0x0302
|
||||
#define REG_PRE_PLL_CLK_DIV 0x0304
|
||||
#define REG_VT_PIX_CLK_DIV 0x0300
|
||||
#define REG_OP_PIX_CLK_DIV 0x0308
|
||||
#define REG_PLL_MULTIPLIER 0x0306
|
||||
#define REG_COARSE_INTEGRATION_TIME_ 0x3012
|
||||
#define REG_FRAME_LENGTH_LINES 0x0340
|
||||
#define REG_FRAME_LENGTH_LINES_ 0x300A
|
||||
#define REG_GREEN1_GAIN 0x3056
|
||||
#define REG_GREEN2_GAIN 0x305C
|
||||
#define REG_GROUPED_PARAMETER_HOLD 0x0104
|
||||
#define REG_LINE_LENGTH_PCK_ 0x300C
|
||||
#define REG_MODE_SELECT 0x0100
|
||||
#define REG_PLL_MULTIPLIER 0x0306
|
||||
#define REG_READ_MODE 0x3040
|
||||
#define REG_BLUE_GAIN 0x3058
|
||||
#define REG_RED_GAIN 0x305A
|
||||
#define REG_RESET_REGISTER 0x301A
|
||||
#define REG_SCALE_M 0x0404
|
||||
#define REG_SCALING_MODE 0x0400
|
||||
#define REG_SOFTWARE_RESET 0x0103
|
||||
#define REG_X_ADDR_END 0x0348
|
||||
#define REG_X_ADDR_START 0x0344
|
||||
#define REG_X_ADDR_START 0x0344
|
||||
#define REG_X_OUTPUT_SIZE 0x034C
|
||||
#define REG_Y_ADDR_END 0x034A
|
||||
#define REG_Y_ADDR_START 0x0346
|
||||
#define REG_Y_OUTPUT_SIZE 0x034E
|
||||
|
||||
|
||||
/* specific webcam descriptor */
|
||||
struct sd {
|
||||
struct gspca_dev gspca_dev; /* !! must be the first item */
|
||||
/* How many bytes this frame */
|
||||
unsigned int this_f;
|
||||
|
||||
/*
|
||||
Device has separate gains for each Bayer quadrant
|
||||
V4L supports master gain which is referenced to G1/G2 and supplies
|
||||
individual balance controls for R/B
|
||||
*/
|
||||
struct v4l2_ctrl *blue;
|
||||
struct v4l2_ctrl *red;
|
||||
};
|
||||
|
||||
/* Used to simplify reg write error handling */
|
||||
struct cmd {
|
||||
u16 value;
|
||||
u16 index;
|
||||
};
|
||||
|
||||
static const struct v4l2_pix_format vga_mode[] = {
|
||||
{800, 600,
|
||||
V4L2_PIX_FMT_SGRBG8,
|
||||
V4L2_FIELD_NONE,
|
||||
.bytesperline = 800,
|
||||
.sizeimage = 800 * 600,
|
||||
.colorspace = V4L2_COLORSPACE_SRGB},
|
||||
{1600, 1200,
|
||||
V4L2_PIX_FMT_SGRBG8,
|
||||
V4L2_FIELD_NONE,
|
||||
.bytesperline = 1600,
|
||||
.sizeimage = 1600 * 1200,
|
||||
.colorspace = V4L2_COLORSPACE_SRGB},
|
||||
{3264, 2448,
|
||||
V4L2_PIX_FMT_SGRBG8,
|
||||
V4L2_FIELD_NONE,
|
||||
.bytesperline = 3264,
|
||||
.sizeimage = 3264 * 2448,
|
||||
.colorspace = V4L2_COLORSPACE_SRGB},
|
||||
};
|
||||
|
||||
/*
|
||||
As theres no known frame sync, the only way to keep synced is to try hard
|
||||
to never miss any packets
|
||||
*/
|
||||
#if MAX_NURBS < 4
|
||||
#error "Not enough URBs in the gspca table"
|
||||
#endif
|
||||
|
||||
static int val_reply(struct gspca_dev *gspca_dev, const char *reply, int rc)
|
||||
{
|
||||
if (rc < 0) {
|
||||
PERR("reply has error %d", rc);
|
||||
return -EIO;
|
||||
}
|
||||
if (rc != 1) {
|
||||
PERR("Bad reply size %d", rc);
|
||||
return -EIO;
|
||||
}
|
||||
if (reply[0] != 0x08) {
|
||||
PERR("Bad reply 0x%02X", reply[0]);
|
||||
return -EIO;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void reg_w(struct gspca_dev *gspca_dev, u16 value, u16 index)
|
||||
{
|
||||
char buff[1];
|
||||
int rc;
|
||||
|
||||
PDEBUG(D_USBO, "reg_w bReq=0x0B, bReqT=0xC0, wVal=0x%04X, wInd=0x%04X\n",
|
||||
value, index);
|
||||
rc = usb_control_msg(gspca_dev->dev, usb_rcvctrlpipe(gspca_dev->dev, 0),
|
||||
0x0B, 0xC0, value, index, buff, 1, 500);
|
||||
PDEBUG(D_USBO, "rc=%d, ret={0x%02X}", rc, buff[0]);
|
||||
if (rc < 0) {
|
||||
PERR("Failed reg_w(0x0B, 0xC0, 0x%04X, 0x%04X) w/ rc %d\n",
|
||||
value, index, rc);
|
||||
gspca_dev->usb_err = rc;
|
||||
return;
|
||||
}
|
||||
if (val_reply(gspca_dev, buff, rc)) {
|
||||
PERR("Bad reply to reg_w(0x0B, 0xC0, 0x%04X, 0x%04X\n",
|
||||
value, index);
|
||||
gspca_dev->usb_err = -EIO;
|
||||
}
|
||||
}
|
||||
|
||||
static void reg_w_buf(struct gspca_dev *gspca_dev,
|
||||
const struct cmd *p, int l)
|
||||
{
|
||||
do {
|
||||
reg_w(gspca_dev, p->value, p->index);
|
||||
p++;
|
||||
} while (--l > 0);
|
||||
}
|
||||
|
||||
static void setexposure(struct gspca_dev *gspca_dev, s32 val)
|
||||
{
|
||||
u16 value;
|
||||
unsigned int w = gspca_dev->pixfmt.width;
|
||||
|
||||
if (w == 800)
|
||||
value = val * 5;
|
||||
else if (w == 1600)
|
||||
value = val * 3;
|
||||
else if (w == 3264)
|
||||
value = val * 3 / 2;
|
||||
else {
|
||||
PERR("Invalid width %u\n", w);
|
||||
gspca_dev->usb_err = -EINVAL;
|
||||
return;
|
||||
}
|
||||
PDEBUG(D_STREAM, "exposure: 0x%04X ms\n", value);
|
||||
/* Wonder if theres a good reason for sending it twice */
|
||||
/* probably not but leave it in because...why not */
|
||||
reg_w(gspca_dev, value, REG_COARSE_INTEGRATION_TIME_);
|
||||
reg_w(gspca_dev, value, REG_COARSE_INTEGRATION_TIME_);
|
||||
}
|
||||
|
||||
static int gainify(int in)
|
||||
{
|
||||
/*
|
||||
TODO: check if there are any issues with corner cases
|
||||
0x000 (0):0x07F (127): regL
|
||||
0x080 (128) - 0x0FF (255): regM, regL
|
||||
0x100 (256) - max: regH, regM, regL
|
||||
*/
|
||||
if (in <= 0x7F)
|
||||
return 0x1000 | in;
|
||||
else if (in <= 0xFF)
|
||||
return 0x1080 | in / 2;
|
||||
else
|
||||
return 0x1180 | in / 4;
|
||||
}
|
||||
|
||||
static void setggain(struct gspca_dev *gspca_dev, u16 global_gain)
|
||||
{
|
||||
u16 normalized;
|
||||
|
||||
normalized = gainify(global_gain);
|
||||
PDEBUG(D_STREAM, "gain G1/G2 (0x%04X): 0x%04X (src 0x%04X)\n",
|
||||
REG_GREEN1_GAIN,
|
||||
normalized, global_gain);
|
||||
|
||||
reg_w(gspca_dev, normalized, REG_GREEN1_GAIN);
|
||||
reg_w(gspca_dev, normalized, REG_GREEN2_GAIN);
|
||||
}
|
||||
|
||||
static void setbgain(struct gspca_dev *gspca_dev,
|
||||
u16 gain, u16 global_gain)
|
||||
{
|
||||
u16 normalized;
|
||||
|
||||
normalized = global_gain +
|
||||
((u32)global_gain) * gain / GAIN_MAX;
|
||||
if (normalized > GAIN_MAX) {
|
||||
PDEBUG(D_STREAM, "Truncating blue 0x%04X w/ value 0x%04X\n",
|
||||
GAIN_MAX, normalized);
|
||||
normalized = GAIN_MAX;
|
||||
}
|
||||
normalized = gainify(normalized);
|
||||
PDEBUG(D_STREAM, "gain B (0x%04X): 0x%04X w/ source 0x%04X\n",
|
||||
REG_BLUE_GAIN, normalized, gain);
|
||||
|
||||
reg_w(gspca_dev, normalized, REG_BLUE_GAIN);
|
||||
}
|
||||
|
||||
static void setrgain(struct gspca_dev *gspca_dev,
|
||||
u16 gain, u16 global_gain)
|
||||
{
|
||||
u16 normalized;
|
||||
|
||||
normalized = global_gain +
|
||||
((u32)global_gain) * gain / GAIN_MAX;
|
||||
if (normalized > GAIN_MAX) {
|
||||
PDEBUG(D_STREAM, "Truncating gain 0x%04X w/ value 0x%04X\n",
|
||||
GAIN_MAX, normalized);
|
||||
normalized = GAIN_MAX;
|
||||
}
|
||||
normalized = gainify(normalized);
|
||||
PDEBUG(D_STREAM, "gain R (0x%04X): 0x%04X w / source 0x%04X\n",
|
||||
REG_RED_GAIN, normalized, gain);
|
||||
|
||||
reg_w(gspca_dev, normalized, REG_RED_GAIN);
|
||||
}
|
||||
|
||||
static void configure_wh(struct gspca_dev *gspca_dev)
|
||||
{
|
||||
unsigned int w = gspca_dev->pixfmt.width;
|
||||
|
||||
PDEBUG(D_STREAM, "configure_wh\n");
|
||||
|
||||
if (w == 800) {
|
||||
static const struct cmd reg_init_res[] = {
|
||||
{0x0060, REG_X_ADDR_START},
|
||||
{0x0CD9, REG_X_ADDR_END},
|
||||
{0x0036, REG_Y_ADDR_START},
|
||||
{0x098F, REG_Y_ADDR_END},
|
||||
{0x07C7, REG_READ_MODE},
|
||||
};
|
||||
|
||||
reg_w_buf(gspca_dev,
|
||||
reg_init_res, ARRAY_SIZE(reg_init_res));
|
||||
} else if (w == 1600) {
|
||||
static const struct cmd reg_init_res[] = {
|
||||
{0x009C, REG_X_ADDR_START},
|
||||
{0x0D19, REG_X_ADDR_END},
|
||||
{0x0068, REG_Y_ADDR_START},
|
||||
{0x09C5, REG_Y_ADDR_END},
|
||||
{0x06C3, REG_READ_MODE},
|
||||
};
|
||||
|
||||
reg_w_buf(gspca_dev,
|
||||
reg_init_res, ARRAY_SIZE(reg_init_res));
|
||||
} else if (w == 3264) {
|
||||
static const struct cmd reg_init_res[] = {
|
||||
{0x00E8, REG_X_ADDR_START},
|
||||
{0x0DA7, REG_X_ADDR_END},
|
||||
{0x009E, REG_Y_ADDR_START},
|
||||
{0x0A2D, REG_Y_ADDR_END},
|
||||
{0x0241, REG_READ_MODE},
|
||||
};
|
||||
|
||||
reg_w_buf(gspca_dev,
|
||||
reg_init_res, ARRAY_SIZE(reg_init_res));
|
||||
} else {
|
||||
PERR("bad width %u\n", w);
|
||||
gspca_dev->usb_err = -EINVAL;
|
||||
return;
|
||||
}
|
||||
|
||||
reg_w(gspca_dev, 0x0000, REG_SCALING_MODE);
|
||||
reg_w(gspca_dev, 0x0010, REG_SCALE_M);
|
||||
reg_w(gspca_dev, w, REG_X_OUTPUT_SIZE);
|
||||
reg_w(gspca_dev, gspca_dev->pixfmt.height, REG_Y_OUTPUT_SIZE);
|
||||
|
||||
if (w == 800) {
|
||||
reg_w(gspca_dev, 0x0384, REG_FRAME_LENGTH_LINES_);
|
||||
reg_w(gspca_dev, 0x0960, REG_LINE_LENGTH_PCK_);
|
||||
} else if (w == 1600) {
|
||||
reg_w(gspca_dev, 0x0640, REG_FRAME_LENGTH_LINES_);
|
||||
reg_w(gspca_dev, 0x0FA0, REG_LINE_LENGTH_PCK_);
|
||||
} else if (w == 3264) {
|
||||
reg_w(gspca_dev, 0x0B4B, REG_FRAME_LENGTH_LINES_);
|
||||
reg_w(gspca_dev, 0x1F40, REG_LINE_LENGTH_PCK_);
|
||||
} else {
|
||||
PERR("bad width %u\n", w);
|
||||
gspca_dev->usb_err = -EINVAL;
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
/* Packets that were encrypted, no idea if the grouping is significant */
|
||||
static void configure_encrypted(struct gspca_dev *gspca_dev)
|
||||
{
|
||||
static const struct cmd reg_init_begin[] = {
|
||||
{0x0100, REG_SOFTWARE_RESET},
|
||||
{0x0000, REG_MODE_SELECT},
|
||||
{0x0100, REG_GROUPED_PARAMETER_HOLD},
|
||||
{0x0004, REG_VT_PIX_CLK_DIV},
|
||||
{0x0001, REG_VT_SYS_CLK_DIV},
|
||||
{0x0008, REG_OP_PIX_CLK_DIV},
|
||||
{0x0001, REG_OP_SYS_CLK_DIV},
|
||||
{0x0004, REG_PRE_PLL_CLK_DIV},
|
||||
{0x0040, REG_PLL_MULTIPLIER},
|
||||
{0x0000, REG_GROUPED_PARAMETER_HOLD},
|
||||
{0x0100, REG_GROUPED_PARAMETER_HOLD},
|
||||
};
|
||||
static const struct cmd reg_init_end[] = {
|
||||
{0x0000, REG_GROUPED_PARAMETER_HOLD},
|
||||
{0x0301, 0x31AE},
|
||||
{0x0805, 0x3064},
|
||||
{0x0071, 0x3170},
|
||||
{0x10DE, REG_RESET_REGISTER},
|
||||
{0x0000, REG_MODE_SELECT},
|
||||
{0x0010, REG_PLL_MULTIPLIER},
|
||||
{0x0100, REG_MODE_SELECT},
|
||||
};
|
||||
|
||||
PDEBUG(D_STREAM, "Encrypted begin, w = %u\n", gspca_dev->pixfmt.width);
|
||||
reg_w_buf(gspca_dev, reg_init_begin, ARRAY_SIZE(reg_init_begin));
|
||||
configure_wh(gspca_dev);
|
||||
reg_w_buf(gspca_dev, reg_init_end, ARRAY_SIZE(reg_init_end));
|
||||
reg_w(gspca_dev, 0x0100, REG_GROUPED_PARAMETER_HOLD);
|
||||
reg_w(gspca_dev, 0x0000, REG_GROUPED_PARAMETER_HOLD);
|
||||
|
||||
PDEBUG(D_STREAM, "Encrypted end\n");
|
||||
}
|
||||
|
||||
static int configure(struct gspca_dev *gspca_dev)
|
||||
{
|
||||
int rc;
|
||||
uint8_t buff[4];
|
||||
|
||||
PDEBUG(D_STREAM, "configure()\n");
|
||||
|
||||
/*
|
||||
First driver sets a sort of encryption key
|
||||
A number of futur requests of this type have wValue and wIndex encrypted
|
||||
as follows:
|
||||
-Compute key = this wValue rotate left by 4 bits
|
||||
(decrypt.py rotates right because we are decrypting)
|
||||
-Later packets encrypt packets by XOR'ing with key
|
||||
XOR encrypt/decrypt is symmetrical
|
||||
wValue, and wIndex are encrypted
|
||||
bRequest is not and bRequestType is always 0xC0
|
||||
This allows resyncing if key is unknown?
|
||||
By setting 0 we XOR with 0 and the shifting and XOR drops out
|
||||
*/
|
||||
rc = usb_control_msg(gspca_dev->dev, usb_rcvctrlpipe(gspca_dev->dev, 0),
|
||||
0x16, 0xC0, 0x0000, 0x0000, buff, 2, 500);
|
||||
if (val_reply(gspca_dev, buff, rc)) {
|
||||
PERR("failed key req");
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
/*
|
||||
Next does some sort of 2 packet challenge / response
|
||||
evidence suggests its an Atmel I2C crypto part but nobody cares to look
|
||||
(to make sure its not cloned hardware?)
|
||||
Ignore: I want to work with their hardware, not clone it
|
||||
16 bytes out challenge, requestType: 0x40
|
||||
16 bytes in response, requestType: 0xC0
|
||||
*/
|
||||
|
||||
rc = usb_control_msg(gspca_dev->dev, usb_sndctrlpipe(gspca_dev->dev, 0),
|
||||
0x01, 0x40, 0x0001, 0x000F, NULL, 0, 500);
|
||||
if (rc < 0) {
|
||||
PERR("failed to replay packet 176 w/ rc %d\n", rc);
|
||||
return rc;
|
||||
}
|
||||
|
||||
rc = usb_control_msg(gspca_dev->dev, usb_sndctrlpipe(gspca_dev->dev, 0),
|
||||
0x01, 0x40, 0x0000, 0x000F, NULL, 0, 500);
|
||||
if (rc < 0) {
|
||||
PERR("failed to replay packet 178 w/ rc %d\n", rc);
|
||||
return rc;
|
||||
}
|
||||
|
||||
rc = usb_control_msg(gspca_dev->dev, usb_sndctrlpipe(gspca_dev->dev, 0),
|
||||
0x01, 0x40, 0x0001, 0x000F, NULL, 0, 500);
|
||||
if (rc < 0) {
|
||||
PERR("failed to replay packet 180 w/ rc %d\n", rc);
|
||||
return rc;
|
||||
}
|
||||
|
||||
/*
|
||||
Serial number? Doesn't seem to be required
|
||||
cam1: \xE6\x0D\x00\x00, cam2: \x70\x19\x00\x00
|
||||
rc = usb_control_msg(gspca_dev->dev, usb_rcvctrlpipe(gspca_dev->dev, 0),
|
||||
0x20, 0xC0, 0x0000, 0x0000, buff, 4, 500);
|
||||
*/
|
||||
|
||||
/* Large (EEPROM?) read, skip it since no idea what to do with it */
|
||||
gspca_dev->usb_err = 0;
|
||||
configure_encrypted(gspca_dev);
|
||||
if (gspca_dev->usb_err)
|
||||
return gspca_dev->usb_err;
|
||||
|
||||
/* Omitted this by accident, does not work without it */
|
||||
rc = usb_control_msg(gspca_dev->dev, usb_sndctrlpipe(gspca_dev->dev, 0),
|
||||
0x01, 0x40, 0x0003, 0x000F, NULL, 0, 500);
|
||||
if (rc < 0) {
|
||||
PERR("failed to replay final packet w/ rc %d\n", rc);
|
||||
return rc;
|
||||
}
|
||||
|
||||
PDEBUG(D_STREAM, "Configure complete\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int sd_config(struct gspca_dev *gspca_dev,
|
||||
const struct usb_device_id *id)
|
||||
{
|
||||
gspca_dev->cam.cam_mode = vga_mode;
|
||||
gspca_dev->cam.nmodes = ARRAY_SIZE(vga_mode);
|
||||
|
||||
/* Yes we want URBs and we want them now! */
|
||||
gspca_dev->cam.no_urb_create = 0;
|
||||
gspca_dev->cam.bulk_nurbs = 4;
|
||||
/* Largest size the windows driver uses */
|
||||
gspca_dev->cam.bulk_size = BULK_SIZE;
|
||||
/* Def need to use bulk transfers */
|
||||
gspca_dev->cam.bulk = 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int sd_start(struct gspca_dev *gspca_dev)
|
||||
{
|
||||
struct sd *sd = (struct sd *) gspca_dev;
|
||||
int rc;
|
||||
|
||||
sd->this_f = 0;
|
||||
|
||||
rc = configure(gspca_dev);
|
||||
if (rc < 0) {
|
||||
PERR("Failed configure");
|
||||
return rc;
|
||||
}
|
||||
/* First two frames have messed up gains
|
||||
Drop them to avoid special cases in user apps? */
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
|
||||
u8 *data, /* isoc packet */
|
||||
int len) /* iso packet length */
|
||||
{
|
||||
struct sd *sd = (struct sd *) gspca_dev;
|
||||
|
||||
if (len != BULK_SIZE) {
|
||||
/* can we finish a frame? */
|
||||
if (sd->this_f + len == gspca_dev->pixfmt.sizeimage) {
|
||||
gspca_frame_add(gspca_dev, LAST_PACKET, data, len);
|
||||
PDEBUG(D_FRAM, "finish frame sz %u/%u w/ len %u\n",
|
||||
sd->this_f, gspca_dev->pixfmt.sizeimage, len);
|
||||
/* lost some data, discard the frame */
|
||||
} else {
|
||||
gspca_frame_add(gspca_dev, DISCARD_PACKET, NULL, 0);
|
||||
PDEBUG(D_FRAM, "abort frame sz %u/%u w/ len %u\n",
|
||||
sd->this_f, gspca_dev->pixfmt.sizeimage, len);
|
||||
}
|
||||
sd->this_f = 0;
|
||||
} else {
|
||||
if (sd->this_f == 0)
|
||||
gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
|
||||
else
|
||||
gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
|
||||
sd->this_f += len;
|
||||
}
|
||||
}
|
||||
|
||||
static int sd_init(struct gspca_dev *gspca_dev)
|
||||
{
|
||||
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);
|
||||
struct sd *sd = (struct sd *) gspca_dev;
|
||||
|
||||
gspca_dev->usb_err = 0;
|
||||
|
||||
if (!gspca_dev->streaming)
|
||||
return 0;
|
||||
|
||||
switch (ctrl->id) {
|
||||
case V4L2_CID_EXPOSURE:
|
||||
setexposure(gspca_dev, ctrl->val);
|
||||
break;
|
||||
case V4L2_CID_GAIN:
|
||||
/* gspca_dev->gain automatically updated */
|
||||
setggain(gspca_dev, gspca_dev->gain->val);
|
||||
break;
|
||||
case V4L2_CID_BLUE_BALANCE:
|
||||
sd->blue->val = ctrl->val;
|
||||
setbgain(gspca_dev, sd->blue->val, gspca_dev->gain->val);
|
||||
break;
|
||||
case V4L2_CID_RED_BALANCE:
|
||||
sd->red->val = ctrl->val;
|
||||
setrgain(gspca_dev, sd->red->val, gspca_dev->gain->val);
|
||||
break;
|
||||
}
|
||||
return gspca_dev->usb_err;
|
||||
}
|
||||
|
||||
static const struct v4l2_ctrl_ops sd_ctrl_ops = {
|
||||
.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, 4);
|
||||
|
||||
gspca_dev->exposure = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
|
||||
/* Mostly limited by URB timeouts */
|
||||
/* XXX: make dynamic based on frame rate? */
|
||||
V4L2_CID_EXPOSURE, 0, 800, 1, 350);
|
||||
gspca_dev->gain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
|
||||
V4L2_CID_GAIN, 0, 511, 1, 128);
|
||||
sd->blue = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
|
||||
V4L2_CID_BLUE_BALANCE, 0, 1023, 1, 80);
|
||||
sd->red = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
|
||||
V4L2_CID_RED_BALANCE, 0, 1023, 1, 295);
|
||||
|
||||
if (hdl->error) {
|
||||
PERR("Could not initialize controls\n");
|
||||
return hdl->error;
|
||||
}
|
||||
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,
|
||||
.pkt_scan = sd_pkt_scan,
|
||||
};
|
||||
|
||||
/* Table of supported USB devices */
|
||||
static const struct usb_device_id device_table[] = {
|
||||
/* Commented out devices should be related */
|
||||
/* AS: AmScope, TT: ToupTek */
|
||||
/* { USB_DEVICE(0x0547, 0x6035) }, TT UCMOS00350KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x6130) }, TT UCMOS01300KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x6200) }, TT UCMOS02000KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x6310) }, TT UCMOS03100KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x6510) }, TT UCMOS05100KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x6800) }, TT UCMOS08000KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x6801) }, TT UCMOS08000KPB */
|
||||
{ USB_DEVICE(0x0547, 0x6801) }, /* TT UCMOS08000KPB, AS MU800 */
|
||||
/* { USB_DEVICE(0x0547, 0x6900) }, TT UCMOS09000KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x6901) }, TT UCMOS09000KPB */
|
||||
/* { USB_DEVICE(0x0547, 0x6010) }, TT UCMOS10000KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x6014) }, TT UCMOS14000KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x6131) }, TT UCMOS01300KMA */
|
||||
/* { USB_DEVICE(0x0547, 0x6511) }, TT UCMOS05100KMA */
|
||||
/* { USB_DEVICE(0x0547, 0x8080) }, TT UHCCD00800KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x8140) }, TT UHCCD01400KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x8141) }, TT EXCCD01400KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x8200) }, TT UHCCD02000KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x8201) }, TT UHCCD02000KPB */
|
||||
/* { USB_DEVICE(0x0547, 0x8310) }, TT UHCCD03100KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x8500) }, TT UHCCD05000KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x8510) }, TT UHCCD05100KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x8600) }, TT UHCCD06000KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x8800) }, TT UHCCD08000KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x8315) }, TT UHCCD03150KPA */
|
||||
/* { USB_DEVICE(0x0547, 0x7800) }, TT UHCCD00800KMA */
|
||||
/* { USB_DEVICE(0x0547, 0x7140) }, TT UHCCD01400KMA */
|
||||
/* { USB_DEVICE(0x0547, 0x7141) }, TT UHCCD01400KMB */
|
||||
/* { USB_DEVICE(0x0547, 0x7200) }, TT UHCCD02000KMA */
|
||||
/* { USB_DEVICE(0x0547, 0x7315) }, TT UHCCD03150KMA */
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(usb, device_table);
|
||||
|
||||
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,
|
||||
#endif
|
||||
};
|
||||
|
||||
static int __init sd_mod_init(void)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = usb_register(&sd_driver);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
return 0;
|
||||
}
|
||||
static void __exit sd_mod_exit(void)
|
||||
{
|
||||
usb_deregister(&sd_driver);
|
||||
}
|
||||
|
||||
module_init(sd_mod_init);
|
||||
module_exit(sd_mod_exit);
|
||||
Loading…
Reference in New Issue
Block a user