428 lines
11 KiB
C
428 lines
11 KiB
C
// 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 <bradlch@hotmail.com>
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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 <mxhaard@users.sourceforge.net>");
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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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