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427 lines
11 KiB
427 lines
11 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Mars-Semi MR97311A library |
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* Copyright (C) 2005 <[email protected]> |
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* |
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* V4L2 by Jean-Francois Moine <http://moinejf.free.fr> |
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*/ |
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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#define MODULE_NAME "mars" |
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#include "gspca.h" |
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#include "jpeg.h" |
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MODULE_AUTHOR("Michel Xhaard <[email protected]>"); |
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MODULE_DESCRIPTION("GSPCA/Mars USB Camera Driver"); |
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MODULE_LICENSE("GPL"); |
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#define QUALITY 50 |
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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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struct v4l2_ctrl *brightness; |
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struct v4l2_ctrl *saturation; |
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struct v4l2_ctrl *sharpness; |
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struct v4l2_ctrl *gamma; |
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struct { /* illuminator control cluster */ |
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struct v4l2_ctrl *illum_top; |
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struct v4l2_ctrl *illum_bottom; |
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}; |
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u8 jpeg_hdr[JPEG_HDR_SZ]; |
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}; |
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/* V4L2 controls supported by the driver */ |
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static void setbrightness(struct gspca_dev *gspca_dev, s32 val); |
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static void setcolors(struct gspca_dev *gspca_dev, s32 val); |
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static void setgamma(struct gspca_dev *gspca_dev, s32 val); |
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static void setsharpness(struct gspca_dev *gspca_dev, s32 val); |
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static const struct v4l2_pix_format vga_mode[] = { |
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{320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE, |
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.bytesperline = 320, |
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.sizeimage = 320 * 240 * 3 / 8 + 590, |
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.colorspace = V4L2_COLORSPACE_JPEG, |
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.priv = 2}, |
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{640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE, |
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.bytesperline = 640, |
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.sizeimage = 640 * 480 * 3 / 8 + 590, |
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.colorspace = V4L2_COLORSPACE_JPEG, |
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.priv = 1}, |
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}; |
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static const __u8 mi_data[0x20] = { |
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/* 01 02 03 04 05 06 07 08 */ |
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0x48, 0x22, 0x01, 0x47, 0x10, 0x00, 0x00, 0x00, |
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/* 09 0a 0b 0c 0d 0e 0f 10 */ |
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0x00, 0x01, 0x30, 0x01, 0x30, 0x01, 0x30, 0x01, |
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/* 11 12 13 14 15 16 17 18 */ |
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0x30, 0x00, 0x04, 0x00, 0x06, 0x01, 0xe2, 0x02, |
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/* 19 1a 1b 1c 1d 1e 1f 20 */ |
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0x82, 0x00, 0x20, 0x17, 0x80, 0x08, 0x0c, 0x00 |
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}; |
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/* write <len> bytes from gspca_dev->usb_buf */ |
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static void reg_w(struct gspca_dev *gspca_dev, |
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int len) |
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{ |
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int alen, ret; |
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if (gspca_dev->usb_err < 0) |
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return; |
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ret = usb_bulk_msg(gspca_dev->dev, |
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usb_sndbulkpipe(gspca_dev->dev, 4), |
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gspca_dev->usb_buf, |
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len, |
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&alen, |
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500); /* timeout in milliseconds */ |
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if (ret < 0) { |
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pr_err("reg write [%02x] error %d\n", |
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gspca_dev->usb_buf[0], ret); |
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gspca_dev->usb_err = ret; |
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} |
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} |
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static void mi_w(struct gspca_dev *gspca_dev, |
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u8 addr, |
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u8 value) |
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{ |
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gspca_dev->usb_buf[0] = 0x1f; |
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gspca_dev->usb_buf[1] = 0; /* control byte */ |
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gspca_dev->usb_buf[2] = addr; |
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gspca_dev->usb_buf[3] = value; |
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reg_w(gspca_dev, 4); |
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} |
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static void setbrightness(struct gspca_dev *gspca_dev, s32 val) |
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{ |
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gspca_dev->usb_buf[0] = 0x61; |
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gspca_dev->usb_buf[1] = val; |
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reg_w(gspca_dev, 2); |
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} |
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static void setcolors(struct gspca_dev *gspca_dev, s32 val) |
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{ |
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gspca_dev->usb_buf[0] = 0x5f; |
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gspca_dev->usb_buf[1] = val << 3; |
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gspca_dev->usb_buf[2] = ((val >> 2) & 0xf8) | 0x04; |
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reg_w(gspca_dev, 3); |
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} |
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static void setgamma(struct gspca_dev *gspca_dev, s32 val) |
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{ |
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gspca_dev->usb_buf[0] = 0x06; |
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gspca_dev->usb_buf[1] = val * 0x40; |
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reg_w(gspca_dev, 2); |
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} |
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static void setsharpness(struct gspca_dev *gspca_dev, s32 val) |
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{ |
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gspca_dev->usb_buf[0] = 0x67; |
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gspca_dev->usb_buf[1] = val * 4 + 3; |
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reg_w(gspca_dev, 2); |
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} |
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static void setilluminators(struct gspca_dev *gspca_dev, bool top, bool bottom) |
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{ |
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/* both are off if not streaming */ |
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gspca_dev->usb_buf[0] = 0x22; |
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if (top) |
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gspca_dev->usb_buf[1] = 0x76; |
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else if (bottom) |
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gspca_dev->usb_buf[1] = 0x7a; |
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else |
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gspca_dev->usb_buf[1] = 0x7e; |
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reg_w(gspca_dev, 2); |
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} |
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static int mars_s_ctrl(struct v4l2_ctrl *ctrl) |
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{ |
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struct gspca_dev *gspca_dev = |
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container_of(ctrl->handler, struct gspca_dev, ctrl_handler); |
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struct sd *sd = (struct sd *)gspca_dev; |
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gspca_dev->usb_err = 0; |
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if (ctrl->id == V4L2_CID_ILLUMINATORS_1) { |
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/* only one can be on at a time */ |
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if (ctrl->is_new && ctrl->val) |
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sd->illum_bottom->val = 0; |
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if (sd->illum_bottom->is_new && sd->illum_bottom->val) |
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sd->illum_top->val = 0; |
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} |
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if (!gspca_dev->streaming) |
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return 0; |
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switch (ctrl->id) { |
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case V4L2_CID_BRIGHTNESS: |
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setbrightness(gspca_dev, ctrl->val); |
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break; |
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case V4L2_CID_SATURATION: |
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setcolors(gspca_dev, ctrl->val); |
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break; |
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case V4L2_CID_GAMMA: |
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setgamma(gspca_dev, ctrl->val); |
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break; |
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case V4L2_CID_ILLUMINATORS_1: |
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setilluminators(gspca_dev, sd->illum_top->val, |
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sd->illum_bottom->val); |
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break; |
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case V4L2_CID_SHARPNESS: |
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setsharpness(gspca_dev, ctrl->val); |
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break; |
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default: |
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return -EINVAL; |
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} |
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return gspca_dev->usb_err; |
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} |
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static const struct v4l2_ctrl_ops mars_ctrl_ops = { |
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.s_ctrl = mars_s_ctrl, |
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}; |
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/* this function is called at probe time */ |
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static int sd_init_controls(struct gspca_dev *gspca_dev) |
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{ |
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struct sd *sd = (struct sd *) gspca_dev; |
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struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; |
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gspca_dev->vdev.ctrl_handler = hdl; |
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v4l2_ctrl_handler_init(hdl, 6); |
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sd->brightness = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops, |
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V4L2_CID_BRIGHTNESS, 0, 30, 1, 15); |
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sd->saturation = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops, |
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V4L2_CID_SATURATION, 0, 255, 1, 200); |
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sd->gamma = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops, |
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V4L2_CID_GAMMA, 0, 3, 1, 1); |
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sd->sharpness = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops, |
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V4L2_CID_SHARPNESS, 0, 2, 1, 1); |
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sd->illum_top = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops, |
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V4L2_CID_ILLUMINATORS_1, 0, 1, 1, 0); |
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sd->illum_top->flags |= V4L2_CTRL_FLAG_UPDATE; |
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sd->illum_bottom = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops, |
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V4L2_CID_ILLUMINATORS_2, 0, 1, 1, 0); |
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sd->illum_bottom->flags |= V4L2_CTRL_FLAG_UPDATE; |
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if (hdl->error) { |
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pr_err("Could not initialize controls\n"); |
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return hdl->error; |
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} |
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v4l2_ctrl_cluster(2, &sd->illum_top); |
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return 0; |
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} |
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/* this function is called at probe time */ |
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static int sd_config(struct gspca_dev *gspca_dev, |
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const struct usb_device_id *id) |
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{ |
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struct cam *cam; |
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cam = &gspca_dev->cam; |
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cam->cam_mode = vga_mode; |
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cam->nmodes = ARRAY_SIZE(vga_mode); |
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return 0; |
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} |
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/* this function is called at probe and resume time */ |
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static int sd_init(struct gspca_dev *gspca_dev) |
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{ |
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return 0; |
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} |
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static int sd_start(struct gspca_dev *gspca_dev) |
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{ |
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struct sd *sd = (struct sd *) gspca_dev; |
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u8 *data; |
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int i; |
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/* create the JPEG header */ |
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jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height, |
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gspca_dev->pixfmt.width, |
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0x21); /* JPEG 422 */ |
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jpeg_set_qual(sd->jpeg_hdr, QUALITY); |
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data = gspca_dev->usb_buf; |
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data[0] = 0x01; /* address */ |
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data[1] = 0x01; |
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reg_w(gspca_dev, 2); |
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/* |
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Initialize the MR97113 chip register |
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*/ |
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data[0] = 0x00; /* address */ |
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data[1] = 0x0c | 0x01; /* reg 0 */ |
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data[2] = 0x01; /* reg 1 */ |
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data[3] = gspca_dev->pixfmt.width / 8; /* h_size , reg 2 */ |
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data[4] = gspca_dev->pixfmt.height / 8; /* v_size , reg 3 */ |
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data[5] = 0x30; /* reg 4, MI, PAS5101 : |
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* 0x30 for 24mhz , 0x28 for 12mhz */ |
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data[6] = 0x02; /* reg 5, H start - was 0x04 */ |
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data[7] = v4l2_ctrl_g_ctrl(sd->gamma) * 0x40; /* reg 0x06: gamma */ |
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data[8] = 0x01; /* reg 7, V start - was 0x03 */ |
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/* if (h_size == 320 ) */ |
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/* data[9]= 0x56; * reg 8, 24MHz, 2:1 scale down */ |
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/* else */ |
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data[9] = 0x52; /* reg 8, 24MHz, no scale down */ |
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/*jfm: from win trace*/ |
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data[10] = 0x18; |
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reg_w(gspca_dev, 11); |
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data[0] = 0x23; /* address */ |
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data[1] = 0x09; /* reg 35, append frame header */ |
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reg_w(gspca_dev, 2); |
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data[0] = 0x3c; /* address */ |
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/* if (gspca_dev->width == 1280) */ |
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/* data[1] = 200; * reg 60, pc-cam frame size |
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* (unit: 4KB) 800KB */ |
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/* else */ |
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data[1] = 50; /* 50 reg 60, pc-cam frame size |
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* (unit: 4KB) 200KB */ |
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reg_w(gspca_dev, 2); |
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/* auto dark-gain */ |
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data[0] = 0x5e; /* address */ |
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data[1] = 0; /* reg 94, Y Gain (auto) */ |
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/*jfm: from win trace*/ |
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/* reg 0x5f/0x60 (LE) = saturation */ |
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/* h (60): xxxx x100 |
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* l (5f): xxxx x000 */ |
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data[2] = v4l2_ctrl_g_ctrl(sd->saturation) << 3; |
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data[3] = ((v4l2_ctrl_g_ctrl(sd->saturation) >> 2) & 0xf8) | 0x04; |
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data[4] = v4l2_ctrl_g_ctrl(sd->brightness); /* reg 0x61 = brightness */ |
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data[5] = 0x00; |
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reg_w(gspca_dev, 6); |
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data[0] = 0x67; |
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/*jfm: from win trace*/ |
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data[1] = v4l2_ctrl_g_ctrl(sd->sharpness) * 4 + 3; |
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data[2] = 0x14; |
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reg_w(gspca_dev, 3); |
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data[0] = 0x69; |
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data[1] = 0x2f; |
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data[2] = 0x28; |
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data[3] = 0x42; |
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reg_w(gspca_dev, 4); |
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data[0] = 0x63; |
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data[1] = 0x07; |
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reg_w(gspca_dev, 2); |
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/*jfm: win trace - many writes here to reg 0x64*/ |
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/* initialize the MI sensor */ |
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for (i = 0; i < sizeof mi_data; i++) |
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mi_w(gspca_dev, i + 1, mi_data[i]); |
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data[0] = 0x00; |
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data[1] = 0x4d; /* ISOC transferring enable... */ |
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reg_w(gspca_dev, 2); |
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setilluminators(gspca_dev, v4l2_ctrl_g_ctrl(sd->illum_top), |
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v4l2_ctrl_g_ctrl(sd->illum_bottom)); |
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return gspca_dev->usb_err; |
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} |
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static void sd_stopN(struct gspca_dev *gspca_dev) |
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{ |
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struct sd *sd = (struct sd *) gspca_dev; |
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if (v4l2_ctrl_g_ctrl(sd->illum_top) || |
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v4l2_ctrl_g_ctrl(sd->illum_bottom)) { |
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setilluminators(gspca_dev, false, false); |
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msleep(20); |
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} |
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gspca_dev->usb_buf[0] = 1; |
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gspca_dev->usb_buf[1] = 0; |
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reg_w(gspca_dev, 2); |
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} |
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static void sd_pkt_scan(struct gspca_dev *gspca_dev, |
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u8 *data, /* isoc packet */ |
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int len) /* iso packet length */ |
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{ |
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struct sd *sd = (struct sd *) gspca_dev; |
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int p; |
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if (len < 6) { |
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/* gspca_dev->last_packet_type = DISCARD_PACKET; */ |
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return; |
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} |
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for (p = 0; p < len - 6; p++) { |
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if (data[0 + p] == 0xff |
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&& data[1 + p] == 0xff |
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&& data[2 + p] == 0x00 |
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&& data[3 + p] == 0xff |
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&& data[4 + p] == 0x96) { |
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if (data[5 + p] == 0x64 |
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|| data[5 + p] == 0x65 |
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|| data[5 + p] == 0x66 |
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|| data[5 + p] == 0x67) { |
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gspca_dbg(gspca_dev, D_PACK, "sof offset: %d len: %d\n", |
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p, len); |
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gspca_frame_add(gspca_dev, LAST_PACKET, |
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data, p); |
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/* put the JPEG header */ |
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gspca_frame_add(gspca_dev, FIRST_PACKET, |
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sd->jpeg_hdr, JPEG_HDR_SZ); |
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data += p + 16; |
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len -= p + 16; |
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break; |
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} |
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} |
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} |
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gspca_frame_add(gspca_dev, INTER_PACKET, data, len); |
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} |
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/* sub-driver description */ |
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static const struct sd_desc sd_desc = { |
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.name = MODULE_NAME, |
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.config = sd_config, |
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.init = sd_init, |
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.init_controls = sd_init_controls, |
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.start = sd_start, |
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.stopN = sd_stopN, |
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.pkt_scan = sd_pkt_scan, |
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}; |
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/* -- module initialisation -- */ |
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static const struct usb_device_id device_table[] = { |
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{USB_DEVICE(0x093a, 0x050f)}, |
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{} |
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}; |
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MODULE_DEVICE_TABLE(usb, device_table); |
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/* -- device connect -- */ |
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static int sd_probe(struct usb_interface *intf, |
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const struct usb_device_id *id) |
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{ |
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return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd), |
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THIS_MODULE); |
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} |
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static struct usb_driver sd_driver = { |
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.name = MODULE_NAME, |
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.id_table = device_table, |
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.probe = sd_probe, |
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.disconnect = gspca_disconnect, |
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#ifdef CONFIG_PM |
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.suspend = gspca_suspend, |
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.resume = gspca_resume, |
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.reset_resume = gspca_resume, |
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#endif |
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}; |
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module_usb_driver(sd_driver);
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