Messages in this thread | | | Date | Mon, 05 Jan 2015 14:19:16 +0100 | From | Hans de Goede <> | Subject | Re: [PATCH] [media] gspca_touptek: Add support for ToupTek UCMOS series USB cameras |
| |
Hi John,
On 01-12-14 03:27, John McMaster wrote: > Adds support for AmScope MU800 / ToupTek UCMOS08000KPB USB microscope camera. > > Signed-off-by: John McMaster <johndmcmaster@gmail.com>
Thanks, I've added this driver to my gspca tree, and asked Mauro to queue it up for 3.20.
Regards,
Hans
> --- > drivers/media/usb/gspca/Kconfig | 10 + > drivers/media/usb/gspca/Makefile | 2 + > drivers/media/usb/gspca/touptek.c | 729 +++++++++++++++++++++++++++++++++++++ > 3 files changed, 741 insertions(+) > create mode 100644 drivers/media/usb/gspca/touptek.c > > diff --git a/drivers/media/usb/gspca/Kconfig b/drivers/media/usb/gspca/Kconfig > index eed10d7..60af3b1 100644 > --- a/drivers/media/usb/gspca/Kconfig > +++ b/drivers/media/usb/gspca/Kconfig > @@ -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 > diff --git a/drivers/media/usb/gspca/Makefile b/drivers/media/usb/gspca/Makefile > index f46975e..9f5ccec 100644 > --- a/drivers/media/usb/gspca/Makefile > +++ b/drivers/media/usb/gspca/Makefile > @@ -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 > diff --git a/drivers/media/usb/gspca/touptek.c b/drivers/media/usb/gspca/touptek.c > new file mode 100644 > index 0000000..2fd876c > --- /dev/null > +++ b/drivers/media/usb/gspca/touptek.c > @@ -0,0 +1,729 @@ > +/* > + * 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); > + > + 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); > + >
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