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path: root/drivers/media/usb/gspca/touptek.c
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Diffstat (limited to 'drivers/media/usb/gspca/touptek.c')
-rw-r--r--drivers/media/usb/gspca/touptek.c736
1 files changed, 736 insertions, 0 deletions
diff --git a/drivers/media/usb/gspca/touptek.c b/drivers/media/usb/gspca/touptek.c
new file mode 100644
index 000000000..d1b9032d7
--- /dev/null
+++ b/drivers/media/usb/gspca/touptek.c
@@ -0,0 +1,736 @@
+/*
+ * 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.
+ */
+
+#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) {
+ gspca_err(gspca_dev, "reply has error %d\n", rc);
+ return -EIO;
+ }
+ if (rc != 1) {
+ gspca_err(gspca_dev, "Bad reply size %d\n", rc);
+ return -EIO;
+ }
+ if (reply[0] != 0x08) {
+ gspca_err(gspca_dev, "Bad reply 0x%02x\n", (int)reply[0]);
+ return -EIO;
+ }
+ return 0;
+}
+
+static void reg_w(struct gspca_dev *gspca_dev, u16 value, u16 index)
+{
+ char *buff = gspca_dev->usb_buf;
+ int rc;
+
+ gspca_dbg(gspca_dev, D_USBO,
+ "reg_w bReq=0x0B, bReqT=0xC0, wVal=0x%04X, wInd=0x%04X\n\n",
+ value, index);
+ rc = usb_control_msg(gspca_dev->dev, usb_rcvctrlpipe(gspca_dev->dev, 0),
+ 0x0B, 0xC0, value, index, buff, 1, 500);
+ gspca_dbg(gspca_dev, D_USBO, "rc=%d, ret={0x%02x}\n", rc, (int)buff[0]);
+ if (rc < 0) {
+ gspca_err(gspca_dev, "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)) {
+ gspca_err(gspca_dev, "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 {
+ gspca_err(gspca_dev, "Invalid width %u\n", w);
+ gspca_dev->usb_err = -EINVAL;
+ return;
+ }
+ gspca_dbg(gspca_dev, D_STREAM, "exposure: 0x%04X ms\n\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);
+ gspca_dbg(gspca_dev, D_STREAM, "gain G1/G2 (0x%04X): 0x%04X (src 0x%04X)\n\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) {
+ gspca_dbg(gspca_dev, D_STREAM, "Truncating blue 0x%04X w/ value 0x%04X\n\n",
+ GAIN_MAX, normalized);
+ normalized = GAIN_MAX;
+ }
+ normalized = gainify(normalized);
+ gspca_dbg(gspca_dev, D_STREAM, "gain B (0x%04X): 0x%04X w/ source 0x%04X\n\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) {
+ gspca_dbg(gspca_dev, D_STREAM, "Truncating gain 0x%04X w/ value 0x%04X\n\n",
+ GAIN_MAX, normalized);
+ normalized = GAIN_MAX;
+ }
+ normalized = gainify(normalized);
+ gspca_dbg(gspca_dev, D_STREAM, "gain R (0x%04X): 0x%04X w / source 0x%04X\n\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;
+
+ gspca_dbg(gspca_dev, D_STREAM, "configure_wh\n\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 {
+ gspca_err(gspca_dev, "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 {
+ gspca_err(gspca_dev, "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},
+ };
+
+ gspca_dbg(gspca_dev, D_STREAM, "Encrypted begin, w = %u\n\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);
+
+ gspca_dbg(gspca_dev, D_STREAM, "Encrypted end\n\n");
+}
+
+static int configure(struct gspca_dev *gspca_dev)
+{
+ int rc;
+ char *buff = gspca_dev->usb_buf;
+
+ gspca_dbg(gspca_dev, D_STREAM, "configure()\n\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)) {
+ gspca_err(gspca_dev, "failed key req\n");
+ 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) {
+ gspca_err(gspca_dev, "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) {
+ 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);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 21:27:05 +0000