530 lines
12 KiB
C
530 lines
12 KiB
C
/*
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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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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/* controls */
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enum e_ctrl {
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BRIGHTNESS,
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COLORS,
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GAMMA,
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SHARPNESS,
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ILLUM_TOP,
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ILLUM_BOT,
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NCTRLS /* number of controls */
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};
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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 gspca_ctrl ctrls[NCTRLS];
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u8 quality;
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#define QUALITY_MIN 40
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#define QUALITY_MAX 70
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#define QUALITY_DEF 50
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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);
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static void setcolors(struct gspca_dev *gspca_dev);
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static void setgamma(struct gspca_dev *gspca_dev);
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static void setsharpness(struct gspca_dev *gspca_dev);
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static int sd_setilluminator1(struct gspca_dev *gspca_dev, __s32 val);
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static int sd_setilluminator2(struct gspca_dev *gspca_dev, __s32 val);
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static const struct ctrl sd_ctrls[NCTRLS] = {
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[BRIGHTNESS] = {
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{
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.id = V4L2_CID_BRIGHTNESS,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Brightness",
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.minimum = 0,
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.maximum = 30,
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.step = 1,
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.default_value = 15,
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},
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.set_control = setbrightness
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},
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[COLORS] = {
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{
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.id = V4L2_CID_SATURATION,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Color",
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.minimum = 1,
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.maximum = 255,
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.step = 1,
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.default_value = 200,
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},
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.set_control = setcolors
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},
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[GAMMA] = {
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{
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.id = V4L2_CID_GAMMA,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Gamma",
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.minimum = 0,
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.maximum = 3,
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.step = 1,
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.default_value = 1,
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},
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.set_control = setgamma
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},
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[SHARPNESS] = {
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{
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.id = V4L2_CID_SHARPNESS,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Sharpness",
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.minimum = 0,
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.maximum = 2,
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.step = 1,
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.default_value = 1,
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},
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.set_control = setsharpness
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},
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[ILLUM_TOP] = {
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{
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.id = V4L2_CID_ILLUMINATORS_1,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "Top illuminator",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 0,
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.flags = V4L2_CTRL_FLAG_UPDATE,
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},
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.set = sd_setilluminator1
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},
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[ILLUM_BOT] = {
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{
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.id = V4L2_CID_ILLUMINATORS_2,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "Bottom illuminator",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 0,
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.flags = V4L2_CTRL_FLAG_UPDATE,
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},
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.set = sd_setilluminator2
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},
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};
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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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err("reg write [%02x] error %d",
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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)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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gspca_dev->usb_buf[0] = 0x61;
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gspca_dev->usb_buf[1] = sd->ctrls[BRIGHTNESS].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)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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s16 val;
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val = sd->ctrls[COLORS].val;
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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)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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gspca_dev->usb_buf[0] = 0x06;
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gspca_dev->usb_buf[1] = sd->ctrls[GAMMA].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)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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gspca_dev->usb_buf[0] = 0x67;
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gspca_dev->usb_buf[1] = sd->ctrls[SHARPNESS].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)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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gspca_dev->usb_buf[0] = 0x22;
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if (sd->ctrls[ILLUM_TOP].val)
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gspca_dev->usb_buf[1] = 0x76;
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else if (sd->ctrls[ILLUM_BOT].val)
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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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/* 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 sd *sd = (struct sd *) gspca_dev;
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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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cam->ctrls = sd->ctrls;
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sd->quality = QUALITY_DEF;
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gspca_dev->nbalt = 9; /* use the altsetting 08 */
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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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gspca_dev->ctrl_inac = (1 << ILLUM_TOP) | (1 << ILLUM_BOT);
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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->height, gspca_dev->width,
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0x21); /* JPEG 422 */
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jpeg_set_qual(sd->jpeg_hdr, sd->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->width / 8; /* h_size , reg 2 */
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data[4] = gspca_dev->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] = sd->ctrls[GAMMA].val * 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] = sd->ctrls[COLORS].val << 3;
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data[3] = ((sd->ctrls[COLORS].val >> 2) & 0xf8) | 0x04;
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data[4] = sd->ctrls[BRIGHTNESS].val; /* 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] = sd->ctrls[SHARPNESS].val * 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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gspca_dev->ctrl_inac = 0; /* activate the illuminator controls */
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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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gspca_dev->ctrl_inac = (1 << ILLUM_TOP) | (1 << ILLUM_BOT);
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if (sd->ctrls[ILLUM_TOP].val || sd->ctrls[ILLUM_BOT].val) {
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sd->ctrls[ILLUM_TOP].val = 0;
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sd->ctrls[ILLUM_BOT].val = 0;
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setilluminators(gspca_dev);
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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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PDEBUG(D_PACK, "sof offset: %d len: %d",
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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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static int sd_setilluminator1(struct gspca_dev *gspca_dev, __s32 val)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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/* only one illuminator may be on */
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sd->ctrls[ILLUM_TOP].val = val;
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if (val)
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sd->ctrls[ILLUM_BOT].val = 0;
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setilluminators(gspca_dev);
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return gspca_dev->usb_err;
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}
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static int sd_setilluminator2(struct gspca_dev *gspca_dev, __s32 val)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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/* only one illuminator may be on */
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sd->ctrls[ILLUM_BOT].val = val;
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if (val)
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sd->ctrls[ILLUM_TOP].val = 0;
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setilluminators(gspca_dev);
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return gspca_dev->usb_err;
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}
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static int sd_set_jcomp(struct gspca_dev *gspca_dev,
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struct v4l2_jpegcompression *jcomp)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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if (jcomp->quality < QUALITY_MIN)
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sd->quality = QUALITY_MIN;
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else if (jcomp->quality > QUALITY_MAX)
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sd->quality = QUALITY_MAX;
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else
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sd->quality = jcomp->quality;
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if (gspca_dev->streaming)
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jpeg_set_qual(sd->jpeg_hdr, sd->quality);
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return 0;
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}
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static int sd_get_jcomp(struct gspca_dev *gspca_dev,
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struct v4l2_jpegcompression *jcomp)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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memset(jcomp, 0, sizeof *jcomp);
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jcomp->quality = sd->quality;
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jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
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| V4L2_JPEG_MARKER_DQT;
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return 0;
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}
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/* sub-driver description */
|
|
static const struct sd_desc sd_desc = {
|
|
.name = MODULE_NAME,
|
|
.ctrls = sd_ctrls,
|
|
.nctrls = NCTRLS,
|
|
.config = sd_config,
|
|
.init = sd_init,
|
|
.start = sd_start,
|
|
.stopN = sd_stopN,
|
|
.pkt_scan = sd_pkt_scan,
|
|
.get_jcomp = sd_get_jcomp,
|
|
.set_jcomp = sd_set_jcomp,
|
|
};
|
|
|
|
/* -- module initialisation -- */
|
|
static const struct usb_device_id device_table[] = {
|
|
{USB_DEVICE(0x093a, 0x050f)},
|
|
{}
|
|
};
|
|
MODULE_DEVICE_TABLE(usb, device_table);
|
|
|
|
/* -- device connect -- */
|
|
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
|
|
};
|
|
|
|
/* -- module insert / remove -- */
|
|
static int __init sd_mod_init(void)
|
|
{
|
|
return usb_register(&sd_driver);
|
|
}
|
|
static void __exit sd_mod_exit(void)
|
|
{
|
|
usb_deregister(&sd_driver);
|
|
}
|
|
|
|
module_init(sd_mod_init);
|
|
module_exit(sd_mod_exit);
|