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727 lines
21 KiB
727 lines
21 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* ToupTek UCMOS / AmScope MU series camera driver |
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* TODO: contrast with ScopeTek / AmScope MDC cameras |
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* |
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* Copyright (C) 2012-2014 John McMaster <[email protected]> |
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* |
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* Special thanks to Bushing for helping with the decrypt algorithm and |
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* Sean O'Sullivan / the Rensselaer Center for Open Source |
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* Software (RCOS) for helping me learn kernel development |
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*/ |
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#include "gspca.h" |
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#define MODULE_NAME "touptek" |
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MODULE_AUTHOR("John McMaster"); |
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MODULE_DESCRIPTION("ToupTek UCMOS / Amscope MU microscope camera driver"); |
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MODULE_LICENSE("GPL"); |
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/* |
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* Exposure reg is linear with exposure time |
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* Exposure (sec), E (reg) |
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* 0.000400, 0x0002 |
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* 0.001000, 0x0005 |
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* 0.005000, 0x0019 |
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* 0.020000, 0x0064 |
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* 0.080000, 0x0190 |
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* 0.400000, 0x07D0 |
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* 1.000000, 0x1388 |
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* 2.000000, 0x2710 |
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* |
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* Three gain stages |
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* 0x1000: master channel enable bit |
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* 0x007F: low gain bits |
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* 0x0080: medium gain bit |
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* 0x0100: high gain bit |
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* gain = enable * (1 + regH) * (1 + regM) * z * regL |
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* |
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* Gain implementation |
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* Want to do something similar to mt9v011.c's set_balance |
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* |
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* Gain does not vary with resolution (checked 640x480 vs 1600x1200) |
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* |
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* Constant derivation: |
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* |
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* Raw data: |
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* Gain, GTOP, B, R, GBOT |
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* 1.00, 0x105C, 0x1068, 0x10C8, 0x105C |
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* 1.20, 0x106E, 0x107E, 0x10D6, 0x106E |
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* 1.40, 0x10C0, 0x10CA, 0x10E5, 0x10C0 |
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* 1.60, 0x10C9, 0x10D4, 0x10F3, 0x10C9 |
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* 1.80, 0x10D2, 0x10DE, 0x11C1, 0x10D2 |
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* 2.00, 0x10DC, 0x10E9, 0x11C8, 0x10DC |
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* 2.20, 0x10E5, 0x10F3, 0x11CF, 0x10E5 |
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* 2.40, 0x10EE, 0x10FE, 0x11D7, 0x10EE |
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* 2.60, 0x10F7, 0x11C4, 0x11DE, 0x10F7 |
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* 2.80, 0x11C0, 0x11CA, 0x11E5, 0x11C0 |
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* 3.00, 0x11C5, 0x11CF, 0x11ED, 0x11C5 |
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* |
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* zR = 0.0069605943152454778 |
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* about 3/431 = 0.0069605568445475635 |
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* zB = 0.0095695970695970703 |
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* about 6/627 = 0.0095693779904306216 |
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* zG = 0.010889328063241107 |
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* about 6/551 = 0.010889292196007259 |
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* about 10 bits for constant + 7 bits for value => at least 17 bit |
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* intermediate with 32 bit ints should be fine for overflow etc |
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* Essentially gains are in range 0-0x001FF |
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* |
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* However, V4L expects a main gain channel + R and B balance |
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* To keep things simple for now saturate the values of balance is too high/low |
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* This isn't really ideal but easy way to fit the Linux model |
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* |
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* Converted using gain model turns out to be quite linear: |
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* Gain, GTOP, B, R, GBOT |
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* 1.00, 92, 104, 144, 92 |
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* 1.20, 110, 126, 172, 110 |
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* 1.40, 128, 148, 202, 128 |
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* 1.60, 146, 168, 230, 146 |
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* 1.80, 164, 188, 260, 164 |
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* 2.00, 184, 210, 288, 184 |
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* 2.20, 202, 230, 316, 202 |
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* 2.40, 220, 252, 348, 220 |
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* 2.60, 238, 272, 376, 238 |
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* 2.80, 256, 296, 404, 256 |
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* 3.00, 276, 316, 436, 276 |
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* |
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* Maximum gain is 0x7FF * 2 * 2 => 0x1FFC (8188) |
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* or about 13 effective bits of gain |
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* The highest the commercial driver goes in my setup 436 |
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* However, because could *maybe* damage circuits |
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* limit the gain until have a reason to go higher |
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* Solution: gain clipped and warning emitted |
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*/ |
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#define GAIN_MAX 511 |
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/* Frame sync is a short read */ |
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#define BULK_SIZE 0x4000 |
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/* MT9E001 reg names to give a rough approximation */ |
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#define REG_COARSE_INTEGRATION_TIME_ 0x3012 |
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#define REG_GROUPED_PARAMETER_HOLD_ 0x3022 |
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#define REG_MODE_SELECT 0x0100 |
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#define REG_OP_SYS_CLK_DIV 0x030A |
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#define REG_VT_SYS_CLK_DIV 0x0302 |
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#define REG_PRE_PLL_CLK_DIV 0x0304 |
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#define REG_VT_PIX_CLK_DIV 0x0300 |
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#define REG_OP_PIX_CLK_DIV 0x0308 |
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#define REG_PLL_MULTIPLIER 0x0306 |
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#define REG_COARSE_INTEGRATION_TIME_ 0x3012 |
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#define REG_FRAME_LENGTH_LINES 0x0340 |
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#define REG_FRAME_LENGTH_LINES_ 0x300A |
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#define REG_GREEN1_GAIN 0x3056 |
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#define REG_GREEN2_GAIN 0x305C |
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#define REG_GROUPED_PARAMETER_HOLD 0x0104 |
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#define REG_LINE_LENGTH_PCK_ 0x300C |
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#define REG_MODE_SELECT 0x0100 |
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#define REG_PLL_MULTIPLIER 0x0306 |
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#define REG_READ_MODE 0x3040 |
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#define REG_BLUE_GAIN 0x3058 |
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#define REG_RED_GAIN 0x305A |
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#define REG_RESET_REGISTER 0x301A |
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#define REG_SCALE_M 0x0404 |
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#define REG_SCALING_MODE 0x0400 |
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#define REG_SOFTWARE_RESET 0x0103 |
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#define REG_X_ADDR_END 0x0348 |
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#define REG_X_ADDR_START 0x0344 |
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#define REG_X_ADDR_START 0x0344 |
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#define REG_X_OUTPUT_SIZE 0x034C |
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#define REG_Y_ADDR_END 0x034A |
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#define REG_Y_ADDR_START 0x0346 |
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#define REG_Y_OUTPUT_SIZE 0x034E |
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/* specific webcam descriptor */ |
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struct sd { |
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struct gspca_dev gspca_dev; /* !! must be the first item */ |
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/* How many bytes this frame */ |
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unsigned int this_f; |
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/* |
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Device has separate gains for each Bayer quadrant |
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V4L supports master gain which is referenced to G1/G2 and supplies |
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individual balance controls for R/B |
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*/ |
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struct v4l2_ctrl *blue; |
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struct v4l2_ctrl *red; |
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}; |
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/* Used to simplify reg write error handling */ |
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struct cmd { |
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u16 value; |
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u16 index; |
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}; |
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static const struct v4l2_pix_format vga_mode[] = { |
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{800, 600, |
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V4L2_PIX_FMT_SGRBG8, |
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V4L2_FIELD_NONE, |
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.bytesperline = 800, |
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.sizeimage = 800 * 600, |
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.colorspace = V4L2_COLORSPACE_SRGB}, |
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{1600, 1200, |
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V4L2_PIX_FMT_SGRBG8, |
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V4L2_FIELD_NONE, |
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.bytesperline = 1600, |
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.sizeimage = 1600 * 1200, |
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.colorspace = V4L2_COLORSPACE_SRGB}, |
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{3264, 2448, |
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V4L2_PIX_FMT_SGRBG8, |
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V4L2_FIELD_NONE, |
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.bytesperline = 3264, |
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.sizeimage = 3264 * 2448, |
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.colorspace = V4L2_COLORSPACE_SRGB}, |
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}; |
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/* |
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* As there's no known frame sync, the only way to keep synced is to try hard |
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* to never miss any packets |
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*/ |
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#if MAX_NURBS < 4 |
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#error "Not enough URBs in the gspca table" |
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#endif |
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static int val_reply(struct gspca_dev *gspca_dev, const char *reply, int rc) |
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{ |
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if (rc < 0) { |
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gspca_err(gspca_dev, "reply has error %d\n", rc); |
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return -EIO; |
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} |
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if (rc != 1) { |
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gspca_err(gspca_dev, "Bad reply size %d\n", rc); |
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return -EIO; |
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} |
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if (reply[0] != 0x08) { |
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gspca_err(gspca_dev, "Bad reply 0x%02x\n", (int)reply[0]); |
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return -EIO; |
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} |
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return 0; |
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} |
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static void reg_w(struct gspca_dev *gspca_dev, u16 value, u16 index) |
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{ |
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char *buff = gspca_dev->usb_buf; |
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int rc; |
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gspca_dbg(gspca_dev, D_USBO, |
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"reg_w bReq=0x0B, bReqT=0xC0, wVal=0x%04X, wInd=0x%04X\n\n", |
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value, index); |
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rc = usb_control_msg(gspca_dev->dev, usb_rcvctrlpipe(gspca_dev->dev, 0), |
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0x0B, 0xC0, value, index, buff, 1, 500); |
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gspca_dbg(gspca_dev, D_USBO, "rc=%d, ret={0x%02x}\n", rc, (int)buff[0]); |
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if (rc < 0) { |
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gspca_err(gspca_dev, "Failed reg_w(0x0B, 0xC0, 0x%04X, 0x%04X) w/ rc %d\n", |
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value, index, rc); |
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gspca_dev->usb_err = rc; |
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return; |
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} |
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if (val_reply(gspca_dev, buff, rc)) { |
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gspca_err(gspca_dev, "Bad reply to reg_w(0x0B, 0xC0, 0x%04X, 0x%04X\n", |
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value, index); |
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gspca_dev->usb_err = -EIO; |
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} |
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} |
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static void reg_w_buf(struct gspca_dev *gspca_dev, |
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const struct cmd *p, int l) |
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{ |
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do { |
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reg_w(gspca_dev, p->value, p->index); |
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p++; |
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} while (--l > 0); |
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} |
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static void setexposure(struct gspca_dev *gspca_dev, s32 val) |
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{ |
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u16 value; |
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unsigned int w = gspca_dev->pixfmt.width; |
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if (w == 800) |
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value = val * 5; |
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else if (w == 1600) |
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value = val * 3; |
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else if (w == 3264) |
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value = val * 3 / 2; |
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else { |
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gspca_err(gspca_dev, "Invalid width %u\n", w); |
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gspca_dev->usb_err = -EINVAL; |
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return; |
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} |
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gspca_dbg(gspca_dev, D_STREAM, "exposure: 0x%04X ms\n\n", value); |
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/* Wonder if there's a good reason for sending it twice */ |
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/* probably not but leave it in because...why not */ |
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reg_w(gspca_dev, value, REG_COARSE_INTEGRATION_TIME_); |
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reg_w(gspca_dev, value, REG_COARSE_INTEGRATION_TIME_); |
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} |
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static int gainify(int in) |
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{ |
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/* |
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* TODO: check if there are any issues with corner cases |
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* 0x000 (0):0x07F (127): regL |
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* 0x080 (128) - 0x0FF (255): regM, regL |
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* 0x100 (256) - max: regH, regM, regL |
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*/ |
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if (in <= 0x7F) |
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return 0x1000 | in; |
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else if (in <= 0xFF) |
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return 0x1080 | in / 2; |
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else |
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return 0x1180 | in / 4; |
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} |
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static void setggain(struct gspca_dev *gspca_dev, u16 global_gain) |
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{ |
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u16 normalized; |
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normalized = gainify(global_gain); |
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gspca_dbg(gspca_dev, D_STREAM, "gain G1/G2 (0x%04X): 0x%04X (src 0x%04X)\n\n", |
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REG_GREEN1_GAIN, |
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normalized, global_gain); |
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reg_w(gspca_dev, normalized, REG_GREEN1_GAIN); |
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reg_w(gspca_dev, normalized, REG_GREEN2_GAIN); |
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} |
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static void setbgain(struct gspca_dev *gspca_dev, |
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u16 gain, u16 global_gain) |
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{ |
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u16 normalized; |
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normalized = global_gain + |
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((u32)global_gain) * gain / GAIN_MAX; |
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if (normalized > GAIN_MAX) { |
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gspca_dbg(gspca_dev, D_STREAM, "Truncating blue 0x%04X w/ value 0x%04X\n\n", |
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GAIN_MAX, normalized); |
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normalized = GAIN_MAX; |
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} |
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normalized = gainify(normalized); |
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gspca_dbg(gspca_dev, D_STREAM, "gain B (0x%04X): 0x%04X w/ source 0x%04X\n\n", |
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REG_BLUE_GAIN, normalized, gain); |
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reg_w(gspca_dev, normalized, REG_BLUE_GAIN); |
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} |
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static void setrgain(struct gspca_dev *gspca_dev, |
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u16 gain, u16 global_gain) |
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{ |
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u16 normalized; |
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normalized = global_gain + |
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((u32)global_gain) * gain / GAIN_MAX; |
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if (normalized > GAIN_MAX) { |
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gspca_dbg(gspca_dev, D_STREAM, "Truncating gain 0x%04X w/ value 0x%04X\n\n", |
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GAIN_MAX, normalized); |
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normalized = GAIN_MAX; |
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} |
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normalized = gainify(normalized); |
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gspca_dbg(gspca_dev, D_STREAM, "gain R (0x%04X): 0x%04X w / source 0x%04X\n\n", |
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REG_RED_GAIN, normalized, gain); |
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reg_w(gspca_dev, normalized, REG_RED_GAIN); |
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} |
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static void configure_wh(struct gspca_dev *gspca_dev) |
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{ |
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unsigned int w = gspca_dev->pixfmt.width; |
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gspca_dbg(gspca_dev, D_STREAM, "configure_wh\n\n"); |
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if (w == 800) { |
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static const struct cmd reg_init_res[] = { |
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{0x0060, REG_X_ADDR_START}, |
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{0x0CD9, REG_X_ADDR_END}, |
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{0x0036, REG_Y_ADDR_START}, |
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{0x098F, REG_Y_ADDR_END}, |
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{0x07C7, REG_READ_MODE}, |
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}; |
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reg_w_buf(gspca_dev, |
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reg_init_res, ARRAY_SIZE(reg_init_res)); |
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} else if (w == 1600) { |
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static const struct cmd reg_init_res[] = { |
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{0x009C, REG_X_ADDR_START}, |
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{0x0D19, REG_X_ADDR_END}, |
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{0x0068, REG_Y_ADDR_START}, |
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{0x09C5, REG_Y_ADDR_END}, |
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{0x06C3, REG_READ_MODE}, |
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}; |
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reg_w_buf(gspca_dev, |
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reg_init_res, ARRAY_SIZE(reg_init_res)); |
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} else if (w == 3264) { |
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static const struct cmd reg_init_res[] = { |
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{0x00E8, REG_X_ADDR_START}, |
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{0x0DA7, REG_X_ADDR_END}, |
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{0x009E, REG_Y_ADDR_START}, |
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{0x0A2D, REG_Y_ADDR_END}, |
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{0x0241, REG_READ_MODE}, |
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}; |
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reg_w_buf(gspca_dev, |
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reg_init_res, ARRAY_SIZE(reg_init_res)); |
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} else { |
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gspca_err(gspca_dev, "bad width %u\n", w); |
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gspca_dev->usb_err = -EINVAL; |
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return; |
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} |
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reg_w(gspca_dev, 0x0000, REG_SCALING_MODE); |
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reg_w(gspca_dev, 0x0010, REG_SCALE_M); |
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reg_w(gspca_dev, w, REG_X_OUTPUT_SIZE); |
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reg_w(gspca_dev, gspca_dev->pixfmt.height, REG_Y_OUTPUT_SIZE); |
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if (w == 800) { |
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reg_w(gspca_dev, 0x0384, REG_FRAME_LENGTH_LINES_); |
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reg_w(gspca_dev, 0x0960, REG_LINE_LENGTH_PCK_); |
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} else if (w == 1600) { |
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reg_w(gspca_dev, 0x0640, REG_FRAME_LENGTH_LINES_); |
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reg_w(gspca_dev, 0x0FA0, REG_LINE_LENGTH_PCK_); |
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} else if (w == 3264) { |
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reg_w(gspca_dev, 0x0B4B, REG_FRAME_LENGTH_LINES_); |
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reg_w(gspca_dev, 0x1F40, REG_LINE_LENGTH_PCK_); |
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} else { |
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gspca_err(gspca_dev, "bad width %u\n", w); |
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gspca_dev->usb_err = -EINVAL; |
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return; |
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} |
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} |
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/* Packets that were encrypted, no idea if the grouping is significant */ |
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static void configure_encrypted(struct gspca_dev *gspca_dev) |
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{ |
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static const struct cmd reg_init_begin[] = { |
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{0x0100, REG_SOFTWARE_RESET}, |
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{0x0000, REG_MODE_SELECT}, |
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{0x0100, REG_GROUPED_PARAMETER_HOLD}, |
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{0x0004, REG_VT_PIX_CLK_DIV}, |
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{0x0001, REG_VT_SYS_CLK_DIV}, |
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{0x0008, REG_OP_PIX_CLK_DIV}, |
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{0x0001, REG_OP_SYS_CLK_DIV}, |
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{0x0004, REG_PRE_PLL_CLK_DIV}, |
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{0x0040, REG_PLL_MULTIPLIER}, |
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{0x0000, REG_GROUPED_PARAMETER_HOLD}, |
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{0x0100, REG_GROUPED_PARAMETER_HOLD}, |
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}; |
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static const struct cmd reg_init_end[] = { |
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{0x0000, REG_GROUPED_PARAMETER_HOLD}, |
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{0x0301, 0x31AE}, |
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{0x0805, 0x3064}, |
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{0x0071, 0x3170}, |
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{0x10DE, REG_RESET_REGISTER}, |
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{0x0000, REG_MODE_SELECT}, |
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{0x0010, REG_PLL_MULTIPLIER}, |
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{0x0100, REG_MODE_SELECT}, |
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}; |
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gspca_dbg(gspca_dev, D_STREAM, "Encrypted begin, w = %u\n\n", |
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gspca_dev->pixfmt.width); |
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reg_w_buf(gspca_dev, reg_init_begin, ARRAY_SIZE(reg_init_begin)); |
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configure_wh(gspca_dev); |
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reg_w_buf(gspca_dev, reg_init_end, ARRAY_SIZE(reg_init_end)); |
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reg_w(gspca_dev, 0x0100, REG_GROUPED_PARAMETER_HOLD); |
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reg_w(gspca_dev, 0x0000, REG_GROUPED_PARAMETER_HOLD); |
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gspca_dbg(gspca_dev, D_STREAM, "Encrypted end\n\n"); |
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} |
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static int configure(struct gspca_dev *gspca_dev) |
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{ |
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int rc; |
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char *buff = gspca_dev->usb_buf; |
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gspca_dbg(gspca_dev, D_STREAM, "configure()\n\n"); |
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|
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/* |
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* First driver sets a sort of encryption key |
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* A number of futur requests of this type have wValue and wIndex |
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* encrypted as follows: |
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* -Compute key = this wValue rotate left by 4 bits |
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* (decrypt.py rotates right because we are decrypting) |
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* -Later packets encrypt packets by XOR'ing with key |
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* XOR encrypt/decrypt is symmetrical |
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* wValue, and wIndex are encrypted |
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* bRequest is not and bRequestType is always 0xC0 |
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* This allows resyncing if key is unknown? |
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* By setting 0 we XOR with 0 and the shifting and XOR drops out |
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*/ |
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rc = usb_control_msg(gspca_dev->dev, usb_rcvctrlpipe(gspca_dev->dev, 0), |
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0x16, 0xC0, 0x0000, 0x0000, buff, 2, 500); |
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if (val_reply(gspca_dev, buff, rc)) { |
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gspca_err(gspca_dev, "failed key req\n"); |
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return -EIO; |
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} |
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|
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/* |
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* Next does some sort of 2 packet challenge / response |
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* evidence suggests its an Atmel I2C crypto part but nobody cares to |
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* look |
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* (to make sure its not cloned hardware?) |
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* Ignore: I want to work with their hardware, not clone it |
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* 16 bytes out challenge, requestType: 0x40 |
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* 16 bytes in response, requestType: 0xC0 |
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*/ |
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|
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rc = usb_control_msg(gspca_dev->dev, usb_sndctrlpipe(gspca_dev->dev, 0), |
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0x01, 0x40, 0x0001, 0x000F, NULL, 0, 500); |
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if (rc < 0) { |
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gspca_err(gspca_dev, "failed to replay packet 176 w/ rc %d\n", |
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rc); |
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return rc; |
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} |
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|
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rc = usb_control_msg(gspca_dev->dev, usb_sndctrlpipe(gspca_dev->dev, 0), |
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0x01, 0x40, 0x0000, 0x000F, NULL, 0, 500); |
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if (rc < 0) { |
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gspca_err(gspca_dev, "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) { |
|
gspca_err(gspca_dev, "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) { |
|
gspca_err(gspca_dev, "failed to replay final packet w/ rc %d\n", |
|
rc); |
|
return rc; |
|
} |
|
|
|
gspca_dbg(gspca_dev, D_STREAM, "Configure complete\n\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) { |
|
gspca_err(gspca_dev, "Failed configure\n"); |
|
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); |
|
gspca_dbg(gspca_dev, D_FRAM, "finish frame sz %u/%u w/ len %u\n\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); |
|
gspca_dbg(gspca_dev, D_FRAM, "abort frame sz %u/%u w/ len %u\n\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) { |
|
gspca_err(gspca_dev, "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);
|
|
|