forked from Minki/linux
dff6d321d4
Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
852 lines
22 KiB
C
852 lines
22 KiB
C
/*
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* Pixart PAC7311 library
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* Copyright (C) 2005 Thomas Kaiser thomas@kaiser-linux.li
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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 "pac7311"
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#include "gspca.h"
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#include "jpeg.h"
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MODULE_AUTHOR("Thomas Kaiser thomas@kaiser-linux.li");
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MODULE_DESCRIPTION("Pixart PAC7311");
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MODULE_LICENSE("GPL");
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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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int lum_sum;
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atomic_t avg_lum;
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atomic_t do_gain;
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unsigned char brightness;
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unsigned char contrast;
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unsigned char colors;
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unsigned char autogain;
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char tosof; /* number of bytes before next start of frame */
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signed char ag_cnt;
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#define AG_CNT_START 13
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__u8 sensor;
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#define SENSOR_PAC7302 0
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#define SENSOR_PAC7311 1
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};
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/* V4L2 controls supported by the driver */
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static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
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static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
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static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
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static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
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static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
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static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
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static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val);
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static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val);
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static struct ctrl sd_ctrls[] = {
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{
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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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#define BRIGHTNESS_MAX 0x20
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.maximum = BRIGHTNESS_MAX,
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.step = 1,
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#define BRIGHTNESS_DEF 0x10
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.default_value = BRIGHTNESS_DEF,
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},
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.set = sd_setbrightness,
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.get = sd_getbrightness,
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},
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{
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{
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.id = V4L2_CID_CONTRAST,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Contrast",
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.minimum = 0,
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#define CONTRAST_MAX 255
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.maximum = CONTRAST_MAX,
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.step = 1,
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#define CONTRAST_DEF 60
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.default_value = CONTRAST_DEF,
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},
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.set = sd_setcontrast,
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.get = sd_getcontrast,
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},
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{
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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 = "Saturation",
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.minimum = 0,
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.maximum = 255,
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.step = 1,
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#define COLOR_DEF 127
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.default_value = COLOR_DEF,
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},
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.set = sd_setcolors,
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.get = sd_getcolors,
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},
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{
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{
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.id = V4L2_CID_AUTOGAIN,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "Auto Gain",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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#define AUTOGAIN_DEF 1
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.default_value = AUTOGAIN_DEF,
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},
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.set = sd_setautogain,
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.get = sd_getautogain,
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},
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};
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static struct v4l2_pix_format vga_mode[] = {
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{160, 120, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE,
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.bytesperline = 160,
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.sizeimage = 160 * 120 * 3 / 8 + 590,
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.colorspace = V4L2_COLORSPACE_JPEG,
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.priv = 2},
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{320, 240, V4L2_PIX_FMT_PJPG, 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 = 1},
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{640, 480, V4L2_PIX_FMT_PJPG, 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 = 0},
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};
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/* pac 7302 */
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static const __u8 probe_7302[] = {
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/* index,value */
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0xff, 0x01, /* page 1 */
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0x78, 0x00, /* deactivate */
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0xff, 0x01,
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0x78, 0x40, /* led off */
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};
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static const __u8 start_7302[] = {
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/* index, len, [value]* */
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0xff, 1, 0x00, /* page 0 */
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0x00, 12, 0x01, 0x40, 0x40, 0x40, 0x01, 0xe0, 0x02, 0x80,
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0x00, 0x00, 0x00, 0x00,
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0x0d, 24, 0x03, 0x01, 0x00, 0xb5, 0x07, 0xcb, 0x00, 0x00,
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0x07, 0xc8, 0x00, 0xea, 0x07, 0xcf, 0x07, 0xf7,
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0x07, 0x7e, 0x01, 0x0b, 0x00, 0x00, 0x00, 0x11,
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0x26, 2, 0xaa, 0xaa,
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0x2e, 1, 0x31,
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0x38, 1, 0x01,
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0x3a, 3, 0x14, 0xff, 0x5a,
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0x43, 11, 0x00, 0x0a, 0x18, 0x11, 0x01, 0x2c, 0x88, 0x11,
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0x00, 0x54, 0x11,
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0x55, 1, 0x00,
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0x62, 4, 0x10, 0x1e, 0x1e, 0x18,
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0x6b, 1, 0x00,
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0x6e, 3, 0x08, 0x06, 0x00,
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0x72, 3, 0x00, 0xff, 0x00,
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0x7d, 23, 0x01, 0x01, 0x58, 0x46, 0x50, 0x3c, 0x50, 0x3c,
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0x54, 0x46, 0x54, 0x56, 0x52, 0x50, 0x52, 0x50,
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0x56, 0x64, 0xa4, 0x00, 0xda, 0x00, 0x00,
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0xa2, 10, 0x22, 0x2c, 0x3c, 0x54, 0x69, 0x7c, 0x9c, 0xb9,
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0xd2, 0xeb,
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0xaf, 1, 0x02,
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0xb5, 2, 0x08, 0x08,
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0xb8, 2, 0x08, 0x88,
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0xc4, 4, 0xae, 0x01, 0x04, 0x01,
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0xcc, 1, 0x00,
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0xd1, 11, 0x01, 0x30, 0x49, 0x5e, 0x6f, 0x7f, 0x8e, 0xa9,
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0xc1, 0xd7, 0xec,
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0xdc, 1, 0x01,
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0xff, 1, 0x01, /* page 1 */
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0x12, 3, 0x02, 0x00, 0x01,
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0x3e, 2, 0x00, 0x00,
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0x76, 5, 0x01, 0x20, 0x40, 0x00, 0xf2,
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0x7c, 1, 0x00,
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0x7f, 10, 0x4b, 0x0f, 0x01, 0x2c, 0x02, 0x58, 0x03, 0x20,
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0x02, 0x00,
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0x96, 5, 0x01, 0x10, 0x04, 0x01, 0x04,
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0xc8, 14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00,
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0x07, 0x00, 0x01, 0x07, 0x04, 0x01,
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0xd8, 1, 0x01,
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0xdb, 2, 0x00, 0x01,
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0xde, 7, 0x00, 0x01, 0x04, 0x04, 0x00, 0x00, 0x00,
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0xe6, 4, 0x00, 0x00, 0x00, 0x01,
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0xeb, 1, 0x00,
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0xff, 1, 0x02, /* page 2 */
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0x22, 1, 0x00,
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0xff, 1, 0x03, /* page 3 */
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0x00, 255, /* load the page 3 */
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0x11, 1, 0x01,
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0xff, 1, 0x02, /* page 2 */
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0x13, 1, 0x00,
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0x22, 4, 0x1f, 0xa4, 0xf0, 0x96,
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0x27, 2, 0x14, 0x0c,
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0x2a, 5, 0xc8, 0x00, 0x18, 0x12, 0x22,
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0x64, 8, 0x00, 0x00, 0xf0, 0x01, 0x14, 0x44, 0x44, 0x44,
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0x6e, 1, 0x08,
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0xff, 1, 0x03, /* page 1 */
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0x78, 1, 0x00,
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0, 0 /* end of sequence */
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};
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/* page 3 - the value 0xaa says skip the index - see reg_w_page() */
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static const __u8 page3_7302[] = {
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0x90, 0x40, 0x03, 0x50, 0xc2, 0x01, 0x14, 0x16,
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0x14, 0x12, 0x00, 0x00, 0x00, 0x02, 0x33, 0x00,
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0x0f, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x47, 0x01, 0xb3, 0x01, 0x00,
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0x00, 0x08, 0x00, 0x00, 0x0d, 0x00, 0x00, 0x21,
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0x00, 0x00, 0x00, 0x54, 0xf4, 0x02, 0x52, 0x54,
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0xa4, 0xb8, 0xe0, 0x2a, 0xf6, 0x00, 0x00, 0x00,
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0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0xfc, 0x00, 0xf2, 0x1f, 0x04, 0x00, 0x00,
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0x00, 0x00, 0x00, 0xc0, 0xc0, 0x10, 0x00, 0x00,
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0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x40, 0xff, 0x03, 0x19, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0xc8, 0xc8, 0xc8,
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0xc8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50,
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0x08, 0x10, 0x24, 0x40, 0x00, 0x00, 0x00, 0x00,
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0x01, 0x00, 0x02, 0x47, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x02, 0xfa, 0x00, 0x64, 0x5a, 0x28, 0x00,
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0x00
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};
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/* pac 7311 */
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static const __u8 probe_7311[] = {
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0x78, 0x40, /* Bit_0=start stream, Bit_7=LED */
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0x78, 0x40, /* Bit_0=start stream, Bit_7=LED */
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0x78, 0x44, /* Bit_0=start stream, Bit_7=LED */
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0xff, 0x04,
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0x27, 0x80,
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0x28, 0xca,
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0x29, 0x53,
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0x2a, 0x0e,
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0xff, 0x01,
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0x3e, 0x20,
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};
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static const __u8 start_7311[] = {
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/* index, len, [value]* */
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0xff, 1, 0x01, /* page 1 */
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0x02, 43, 0x48, 0x0a, 0x40, 0x08, 0x00, 0x00, 0x08, 0x00,
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0x06, 0xff, 0x11, 0xff, 0x5a, 0x30, 0x90, 0x4c,
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0x00, 0x07, 0x00, 0x0a, 0x10, 0x00, 0xa0, 0x10,
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0x02, 0x00, 0x00, 0x00, 0x00, 0x0b, 0x01, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00,
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0x3e, 42, 0x00, 0x00, 0x78, 0x52, 0x4a, 0x52, 0x78, 0x6e,
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0x48, 0x46, 0x48, 0x6e, 0x5f, 0x49, 0x42, 0x49,
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0x5f, 0x5f, 0x49, 0x42, 0x49, 0x5f, 0x6e, 0x48,
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0x46, 0x48, 0x6e, 0x78, 0x52, 0x4a, 0x52, 0x78,
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0x00, 0x00, 0x09, 0x1b, 0x34, 0x49, 0x5c, 0x9b,
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0xd0, 0xff,
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0x78, 6, 0x44, 0x00, 0xf2, 0x01, 0x01, 0x80,
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0x7f, 18, 0x2a, 0x1c, 0x00, 0xc8, 0x02, 0x58, 0x03, 0x84,
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0x12, 0x00, 0x1a, 0x04, 0x08, 0x0c, 0x10, 0x14,
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0x18, 0x20,
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0x96, 3, 0x01, 0x08, 0x04,
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0xa0, 4, 0x44, 0x44, 0x44, 0x04,
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0xf0, 13, 0x01, 0x00, 0x00, 0x00, 0x22, 0x00, 0x20, 0x00,
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0x3f, 0x00, 0x0a, 0x01, 0x00,
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0xff, 1, 0x04, /* page 4 */
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0x00, 254, /* load the page 4 */
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0x11, 1, 0x01,
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0, 0 /* end of sequence */
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};
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/* page 4 - the value 0xaa says skip the index - see reg_w_page() */
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static const __u8 page4_7311[] = {
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0xaa, 0xaa, 0x04, 0x54, 0x07, 0x2b, 0x09, 0x0f,
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0x09, 0x00, 0xaa, 0xaa, 0x07, 0x00, 0x00, 0x62,
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0x08, 0xaa, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x03, 0xa0, 0x01, 0xf4, 0xaa,
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0xaa, 0x00, 0x08, 0xaa, 0x03, 0xaa, 0x00, 0x01,
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0xca, 0x10, 0x06, 0x78, 0x00, 0x00, 0x00, 0x00,
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0x23, 0x28, 0x04, 0x11, 0x00, 0x00
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};
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static void reg_w_buf(struct gspca_dev *gspca_dev,
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__u8 index,
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const char *buffer, int len)
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{
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memcpy(gspca_dev->usb_buf, buffer, len);
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usb_control_msg(gspca_dev->dev,
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usb_sndctrlpipe(gspca_dev->dev, 0),
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1, /* request */
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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0, /* value */
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index, gspca_dev->usb_buf, len,
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500);
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}
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static __u8 reg_r(struct gspca_dev *gspca_dev,
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__u8 index)
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{
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usb_control_msg(gspca_dev->dev,
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usb_rcvctrlpipe(gspca_dev->dev, 0),
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0, /* request */
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USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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0, /* value */
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index, gspca_dev->usb_buf, 1,
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500);
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return gspca_dev->usb_buf[0];
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}
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static void reg_w(struct gspca_dev *gspca_dev,
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__u8 index,
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__u8 value)
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{
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gspca_dev->usb_buf[0] = value;
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usb_control_msg(gspca_dev->dev,
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usb_sndctrlpipe(gspca_dev->dev, 0),
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0, /* request */
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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value, index, gspca_dev->usb_buf, 1,
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500);
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}
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static void reg_w_seq(struct gspca_dev *gspca_dev,
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const __u8 *seq, int len)
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{
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while (--len >= 0) {
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reg_w(gspca_dev, seq[0], seq[1]);
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seq += 2;
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}
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}
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/* load the beginning of a page */
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static void reg_w_page(struct gspca_dev *gspca_dev,
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const __u8 *page, int len)
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{
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int index;
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for (index = 0; index < len; index++) {
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if (page[index] == 0xaa) /* skip this index */
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continue;
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gspca_dev->usb_buf[0] = page[index];
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usb_control_msg(gspca_dev->dev,
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usb_sndctrlpipe(gspca_dev->dev, 0),
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0, /* request */
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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0, index, gspca_dev->usb_buf, 1,
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500);
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}
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}
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/* output a variable sequence */
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static void reg_w_var(struct gspca_dev *gspca_dev,
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const __u8 *seq)
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{
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int index, len;
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for (;;) {
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index = *seq++;
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len = *seq++;
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switch (len) {
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case 0:
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return;
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case 254:
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reg_w_page(gspca_dev, page4_7311, sizeof page4_7311);
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break;
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case 255:
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reg_w_page(gspca_dev, page3_7302, sizeof page3_7302);
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break;
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default:
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if (len > 32) {
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PDEBUG(D_ERR|D_STREAM,
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"Incorrect variable sequence");
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return;
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}
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while (len > 0) {
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if (len < 8) {
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reg_w_buf(gspca_dev, index, seq, len);
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seq += len;
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break;
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}
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reg_w_buf(gspca_dev, index, seq, 8);
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|
seq += 8;
|
|
index += 8;
|
|
len -= 8;
|
|
}
|
|
}
|
|
}
|
|
/* not reached */
|
|
}
|
|
|
|
/* this function is called at probe time */
|
|
static int sd_config(struct gspca_dev *gspca_dev,
|
|
const struct usb_device_id *id)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
struct cam *cam;
|
|
|
|
cam = &gspca_dev->cam;
|
|
cam->epaddr = 0x05;
|
|
|
|
sd->sensor = id->driver_info;
|
|
if (sd->sensor == SENSOR_PAC7302) {
|
|
PDEBUG(D_CONF, "Find Sensor PAC7302");
|
|
reg_w_seq(gspca_dev, probe_7302, sizeof probe_7302);
|
|
|
|
cam->cam_mode = &vga_mode[2]; /* only 640x480 */
|
|
cam->nmodes = 1;
|
|
} else {
|
|
PDEBUG(D_CONF, "Find Sensor PAC7311");
|
|
reg_w_seq(gspca_dev, probe_7302, sizeof probe_7302);
|
|
|
|
cam->cam_mode = vga_mode;
|
|
cam->nmodes = ARRAY_SIZE(vga_mode);
|
|
}
|
|
|
|
sd->brightness = BRIGHTNESS_DEF;
|
|
sd->contrast = CONTRAST_DEF;
|
|
sd->colors = COLOR_DEF;
|
|
sd->autogain = AUTOGAIN_DEF;
|
|
sd->ag_cnt = -1;
|
|
return 0;
|
|
}
|
|
|
|
/* rev 12a only */
|
|
static void setbrightcont(struct gspca_dev *gspca_dev)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
int i, v;
|
|
static const __u8 max[10] =
|
|
{0x29, 0x33, 0x42, 0x5a, 0x6e, 0x80, 0x9f, 0xbb,
|
|
0xd4, 0xec};
|
|
static const __u8 delta[10] =
|
|
{0x35, 0x33, 0x33, 0x2f, 0x2a, 0x25, 0x1e, 0x17,
|
|
0x11, 0x0b};
|
|
|
|
reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
|
|
for (i = 0; i < 10; i++) {
|
|
v = max[i];
|
|
v += (sd->brightness - BRIGHTNESS_MAX)
|
|
* 150 / BRIGHTNESS_MAX; /* 200 ? */
|
|
v -= delta[i] * sd->contrast / CONTRAST_MAX;
|
|
if (v < 0)
|
|
v = 0;
|
|
else if (v > 0xff)
|
|
v = 0xff;
|
|
reg_w(gspca_dev, 0xa2 + i, v);
|
|
}
|
|
reg_w(gspca_dev, 0xdc, 0x01);
|
|
}
|
|
|
|
static void setbrightness(struct gspca_dev *gspca_dev)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
int brightness;
|
|
|
|
if (sd->sensor == SENSOR_PAC7302) {
|
|
setbrightcont(gspca_dev);
|
|
return;
|
|
}
|
|
/*jfm: inverted?*/
|
|
brightness = BRIGHTNESS_MAX - sd->brightness;
|
|
reg_w(gspca_dev, 0xff, 0x04);
|
|
reg_w(gspca_dev, 0x0f, brightness);
|
|
/* load registers to sensor (Bit 0, auto clear) */
|
|
reg_w(gspca_dev, 0x11, 0x01);
|
|
PDEBUG(D_CONF|D_STREAM, "brightness: %i", brightness);
|
|
}
|
|
|
|
static void setcontrast(struct gspca_dev *gspca_dev)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
if (sd->sensor == SENSOR_PAC7302) {
|
|
setbrightcont(gspca_dev);
|
|
return;
|
|
}
|
|
reg_w(gspca_dev, 0xff, 0x01);
|
|
reg_w(gspca_dev, 0x80, sd->contrast);
|
|
/* load registers to sensor (Bit 0, auto clear) */
|
|
reg_w(gspca_dev, 0x11, 0x01);
|
|
}
|
|
|
|
static void setcolors(struct gspca_dev *gspca_dev)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
if (sd->sensor == SENSOR_PAC7302)
|
|
return;
|
|
reg_w(gspca_dev, 0xff, 0x01);
|
|
reg_w(gspca_dev, 0x10, sd->colors);
|
|
/* load registers to sensor (Bit 0, auto clear) */
|
|
reg_w(gspca_dev, 0x11, 0x01);
|
|
PDEBUG(D_CONF|D_STREAM, "color: %i", sd->colors);
|
|
}
|
|
|
|
static void setautogain(struct gspca_dev *gspca_dev)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
if (sd->autogain) {
|
|
sd->lum_sum = 0;
|
|
sd->ag_cnt = AG_CNT_START;
|
|
} else {
|
|
sd->ag_cnt = -1;
|
|
}
|
|
}
|
|
|
|
/* this function is called at open time */
|
|
static int sd_open(struct gspca_dev *gspca_dev)
|
|
{
|
|
reg_w(gspca_dev, 0x78, 0x00); /* Turn on LED */
|
|
return 0;
|
|
}
|
|
|
|
static void sd_start(struct gspca_dev *gspca_dev)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
sd->tosof = 0;
|
|
|
|
if (sd->sensor == SENSOR_PAC7302)
|
|
reg_w_var(gspca_dev, start_7302);
|
|
else
|
|
reg_w_var(gspca_dev, start_7311);
|
|
|
|
setcontrast(gspca_dev);
|
|
setbrightness(gspca_dev);
|
|
setcolors(gspca_dev);
|
|
setautogain(gspca_dev);
|
|
|
|
/* set correct resolution */
|
|
switch (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
|
|
case 2: /* 160x120 pac7311 */
|
|
reg_w(gspca_dev, 0xff, 0x04);
|
|
reg_w(gspca_dev, 0x02, 0x03);
|
|
reg_w(gspca_dev, 0xff, 0x01);
|
|
reg_w(gspca_dev, 0x08, 0x09);
|
|
reg_w(gspca_dev, 0x17, 0x20);
|
|
reg_w(gspca_dev, 0x1b, 0x00);
|
|
/* reg_w(gspca_dev, 0x80, 0x69); */
|
|
reg_w(gspca_dev, 0x87, 0x10);
|
|
break;
|
|
case 1: /* 320x240 pac7311 */
|
|
reg_w(gspca_dev, 0xff, 0x04);
|
|
reg_w(gspca_dev, 0x02, 0x03);
|
|
reg_w(gspca_dev, 0xff, 0x01);
|
|
reg_w(gspca_dev, 0x08, 0x09);
|
|
reg_w(gspca_dev, 0x17, 0x30);
|
|
/* reg_w(gspca_dev, 0x80, 0x3f); */
|
|
reg_w(gspca_dev, 0x87, 0x11);
|
|
break;
|
|
case 0: /* 640x480 */
|
|
if (sd->sensor == SENSOR_PAC7302)
|
|
break;
|
|
reg_w(gspca_dev, 0xff, 0x04);
|
|
reg_w(gspca_dev, 0x02, 0x03);
|
|
reg_w(gspca_dev, 0xff, 0x01);
|
|
reg_w(gspca_dev, 0x08, 0x08);
|
|
reg_w(gspca_dev, 0x17, 0x00);
|
|
/* reg_w(gspca_dev, 0x80, 0x1c); */
|
|
reg_w(gspca_dev, 0x87, 0x12);
|
|
break;
|
|
}
|
|
|
|
/* start stream */
|
|
reg_w(gspca_dev, 0xff, 0x01);
|
|
if (sd->sensor == SENSOR_PAC7302) {
|
|
reg_w(gspca_dev, 0x78, 0x01);
|
|
reg_w(gspca_dev, 0xff, 0x01);
|
|
reg_w(gspca_dev, 0x78, 0x01);
|
|
} else {
|
|
reg_w(gspca_dev, 0x78, 0x04);
|
|
reg_w(gspca_dev, 0x78, 0x05);
|
|
}
|
|
}
|
|
|
|
static void sd_stopN(struct gspca_dev *gspca_dev)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
if (sd->sensor == SENSOR_PAC7302) {
|
|
reg_w(gspca_dev, 0x78, 0x00);
|
|
reg_w(gspca_dev, 0x78, 0x00);
|
|
return;
|
|
}
|
|
reg_w(gspca_dev, 0xff, 0x04);
|
|
reg_w(gspca_dev, 0x27, 0x80);
|
|
reg_w(gspca_dev, 0x28, 0xca);
|
|
reg_w(gspca_dev, 0x29, 0x53);
|
|
reg_w(gspca_dev, 0x2a, 0x0e);
|
|
reg_w(gspca_dev, 0xff, 0x01);
|
|
reg_w(gspca_dev, 0x3e, 0x20);
|
|
reg_w(gspca_dev, 0x78, 0x04); /* Bit_0=start stream, Bit_7=LED */
|
|
reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_7=LED */
|
|
reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_7=LED */
|
|
}
|
|
|
|
static void sd_stop0(struct gspca_dev *gspca_dev)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
if (sd->sensor == SENSOR_PAC7302) {
|
|
reg_w(gspca_dev, 0xff, 0x01);
|
|
reg_w(gspca_dev, 0x78, 0x40);
|
|
}
|
|
}
|
|
|
|
/* this function is called at close time */
|
|
static void sd_close(struct gspca_dev *gspca_dev)
|
|
{
|
|
}
|
|
|
|
static void do_autogain(struct gspca_dev *gspca_dev)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
int luma;
|
|
int luma_mean = 128;
|
|
int luma_delta = 20;
|
|
__u8 spring = 5;
|
|
int Gbright;
|
|
|
|
if (!atomic_read(&sd->do_gain))
|
|
return;
|
|
atomic_set(&sd->do_gain, 0);
|
|
|
|
luma = atomic_read(&sd->avg_lum);
|
|
Gbright = reg_r(gspca_dev, 0x02);
|
|
PDEBUG(D_FRAM, "luma mean %d", luma);
|
|
if (luma < luma_mean - luma_delta ||
|
|
luma > luma_mean + luma_delta) {
|
|
Gbright += (luma_mean - luma) >> spring;
|
|
if (Gbright > 0x1a)
|
|
Gbright = 0x1a;
|
|
else if (Gbright < 4)
|
|
Gbright = 4;
|
|
PDEBUG(D_FRAM, "gbright %d", Gbright);
|
|
if (sd->sensor == SENSOR_PAC7302) {
|
|
reg_w(gspca_dev, 0xff, 0x03);
|
|
reg_w(gspca_dev, 0x10, Gbright);
|
|
/* load registers to sensor (Bit 0, auto clear) */
|
|
reg_w(gspca_dev, 0x11, 0x01);
|
|
} else {
|
|
reg_w(gspca_dev, 0xff, 0x04);
|
|
reg_w(gspca_dev, 0x0f, Gbright);
|
|
/* load registers to sensor (Bit 0, auto clear) */
|
|
reg_w(gspca_dev, 0x11, 0x01);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* this function is run at interrupt level */
|
|
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
|
|
struct gspca_frame *frame, /* target */
|
|
__u8 *data, /* isoc packet */
|
|
int len) /* iso packet length */
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
int i;
|
|
|
|
#define INTER_FRAME 0x53 /* eof + inter frame + sof */
|
|
#define LUM_OFFSET 0x1e /* reverse offset / start of frame */
|
|
|
|
/*
|
|
* inside a frame, there may be:
|
|
* escaped ff ('ff 00')
|
|
* sequences'ff ff ff xx' to remove
|
|
* end of frame ('ff d9')
|
|
* at the end of frame, there are:
|
|
* ff d9 end of frame
|
|
* 0x33 bytes
|
|
* one byte luminosity
|
|
* 0x16 bytes
|
|
* ff ff 00 ff 96 62 44 start of frame
|
|
*/
|
|
|
|
if (sd->tosof != 0) { /* if outside a frame */
|
|
|
|
/* get the luminosity and go to the start of frame */
|
|
data += sd->tosof;
|
|
len -= sd->tosof;
|
|
if (sd->tosof > LUM_OFFSET)
|
|
sd->lum_sum += data[-LUM_OFFSET];
|
|
sd->tosof = 0;
|
|
jpeg_put_header(gspca_dev, frame, 1, 0x21);
|
|
}
|
|
|
|
for (i = 0; i < len; i++) {
|
|
if (data[i] != 0xff)
|
|
continue;
|
|
switch (data[i + 1]) {
|
|
case 0xd9: /* 'ff d9' end of frame */
|
|
frame = gspca_frame_add(gspca_dev,
|
|
LAST_PACKET,
|
|
frame, data, i + 2);
|
|
data += i + INTER_FRAME;
|
|
len -= i + INTER_FRAME;
|
|
i = 0;
|
|
if (len > -LUM_OFFSET)
|
|
sd->lum_sum += data[-LUM_OFFSET];
|
|
if (len < 0) {
|
|
sd->tosof = -len;
|
|
break;
|
|
}
|
|
jpeg_put_header(gspca_dev, frame, 1, 0x21);
|
|
break;
|
|
}
|
|
}
|
|
gspca_frame_add(gspca_dev, INTER_PACKET,
|
|
frame, data, i);
|
|
}
|
|
|
|
static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
sd->brightness = val;
|
|
if (gspca_dev->streaming)
|
|
setbrightness(gspca_dev);
|
|
return 0;
|
|
}
|
|
|
|
static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
*val = sd->brightness;
|
|
return 0;
|
|
}
|
|
|
|
static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
sd->contrast = val;
|
|
if (gspca_dev->streaming)
|
|
setcontrast(gspca_dev);
|
|
return 0;
|
|
}
|
|
|
|
static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
*val = sd->contrast;
|
|
return 0;
|
|
}
|
|
|
|
static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
sd->colors = val;
|
|
if (gspca_dev->streaming)
|
|
setcolors(gspca_dev);
|
|
return 0;
|
|
}
|
|
|
|
static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
*val = sd->colors;
|
|
return 0;
|
|
}
|
|
|
|
static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
sd->autogain = val;
|
|
if (gspca_dev->streaming)
|
|
setautogain(gspca_dev);
|
|
return 0;
|
|
}
|
|
|
|
static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
*val = sd->autogain;
|
|
return 0;
|
|
}
|
|
|
|
/* sub-driver description */
|
|
static struct sd_desc sd_desc = {
|
|
.name = MODULE_NAME,
|
|
.ctrls = sd_ctrls,
|
|
.nctrls = ARRAY_SIZE(sd_ctrls),
|
|
.config = sd_config,
|
|
.open = sd_open,
|
|
.start = sd_start,
|
|
.stopN = sd_stopN,
|
|
.stop0 = sd_stop0,
|
|
.close = sd_close,
|
|
.pkt_scan = sd_pkt_scan,
|
|
.dq_callback = do_autogain,
|
|
};
|
|
|
|
/* -- module initialisation -- */
|
|
static __devinitdata struct usb_device_id device_table[] = {
|
|
{USB_DEVICE(0x093a, 0x2600), .driver_info = SENSOR_PAC7311},
|
|
{USB_DEVICE(0x093a, 0x2601), .driver_info = SENSOR_PAC7311},
|
|
{USB_DEVICE(0x093a, 0x2603), .driver_info = SENSOR_PAC7311},
|
|
{USB_DEVICE(0x093a, 0x2608), .driver_info = SENSOR_PAC7311},
|
|
{USB_DEVICE(0x093a, 0x260e), .driver_info = SENSOR_PAC7311},
|
|
{USB_DEVICE(0x093a, 0x260f), .driver_info = SENSOR_PAC7311},
|
|
{USB_DEVICE(0x093a, 0x2621), .driver_info = SENSOR_PAC7302},
|
|
{}
|
|
};
|
|
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,
|
|
};
|
|
|
|
/* -- module insert / remove -- */
|
|
static int __init sd_mod_init(void)
|
|
{
|
|
if (usb_register(&sd_driver) < 0)
|
|
return -1;
|
|
PDEBUG(D_PROBE, "registered");
|
|
return 0;
|
|
}
|
|
static void __exit sd_mod_exit(void)
|
|
{
|
|
usb_deregister(&sd_driver);
|
|
PDEBUG(D_PROBE, "deregistered");
|
|
}
|
|
|
|
module_init(sd_mod_init);
|
|
module_exit(sd_mod_exit);
|