422 lines
11 KiB
C
422 lines
11 KiB
C
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/*
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* Quickcam cameras initialization data
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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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*/
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#define MODULE_NAME "tv8532"
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#include "gspca.h"
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MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
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MODULE_DESCRIPTION("TV8532 USB Camera Driver");
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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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__u16 exposure;
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__u16 gain;
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__u8 packet;
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};
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/* V4L2 controls supported by the driver */
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static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val);
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static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val);
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static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val);
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static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val);
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static const struct ctrl sd_ctrls[] = {
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{
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{
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.id = V4L2_CID_EXPOSURE,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Exposure",
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.minimum = 1,
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.maximum = 0x18f,
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.step = 1,
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#define EXPOSURE_DEF 0x18f
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.default_value = EXPOSURE_DEF,
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},
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.set = sd_setexposure,
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.get = sd_getexposure,
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},
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{
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{
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.id = V4L2_CID_GAIN,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Gain",
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.minimum = 0,
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.maximum = 0x7ff,
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.step = 1,
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#define GAIN_DEF 0x100
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.default_value = GAIN_DEF,
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},
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.set = sd_setgain,
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.get = sd_getgain,
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},
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};
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static const struct v4l2_pix_format sif_mode[] = {
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{176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
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.bytesperline = 176,
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.sizeimage = 176 * 144,
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.colorspace = V4L2_COLORSPACE_SRGB,
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.priv = 1},
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{352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
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.bytesperline = 352,
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.sizeimage = 352 * 288,
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.colorspace = V4L2_COLORSPACE_SRGB,
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.priv = 0},
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};
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/* TV-8532A (ICM532A) registers (LE) */
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#define R00_PART_CONTROL 0x00
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#define LATENT_CHANGE 0x80
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#define EXPO_CHANGE 0x04
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#define R01_TIMING_CONTROL_LOW 0x01
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#define CMD_EEprom_Open 0x30
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#define CMD_EEprom_Close 0x29
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#define R03_TABLE_ADDR 0x03
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#define R04_WTRAM_DATA_L 0x04
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#define R05_WTRAM_DATA_M 0x05
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#define R06_WTRAM_DATA_H 0x06
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#define R07_TABLE_LEN 0x07
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#define R08_RAM_WRITE_ACTION 0x08
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#define R0C_AD_WIDTHL 0x0c
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#define R0D_AD_WIDTHH 0x0d
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#define R0E_AD_HEIGHTL 0x0e
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#define R0F_AD_HEIGHTH 0x0f
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#define R10_AD_COL_BEGINL 0x10
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#define R11_AD_COL_BEGINH 0x11
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#define MIRROR 0x04 /* [10] */
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#define R14_AD_ROW_BEGINL 0x14
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#define R15_AD_ROWBEGINH 0x15
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#define R1C_AD_EXPOSE_TIMEL 0x1c
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#define R20_GAIN_G1L 0x20
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#define R21_GAIN_G1H 0x21
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#define R22_GAIN_RL 0x22
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#define R23_GAIN_RH 0x23
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#define R24_GAIN_BL 0x24
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#define R25_GAIN_BH 0x25
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#define R26_GAIN_G2L 0x26
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#define R27_GAIN_G2H 0x27
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#define R28_QUANT 0x28
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#define R29_LINE 0x29
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#define R2C_POLARITY 0x2c
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#define R2D_POINT 0x2d
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#define R2E_POINTH 0x2e
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#define R2F_POINTB 0x2f
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#define R30_POINTBH 0x30
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#define R31_UPD 0x31
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#define R2A_HIGH_BUDGET 0x2a
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#define R2B_LOW_BUDGET 0x2b
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#define R34_VID 0x34
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#define R35_VIDH 0x35
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#define R36_PID 0x36
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#define R37_PIDH 0x37
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#define R39_Test1 0x39 /* GPIO */
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#define R3B_Test3 0x3b /* GPIO */
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#define R83_AD_IDH 0x83
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#define R91_AD_SLOPEREG 0x91
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#define R94_AD_BITCONTROL 0x94
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static const u8 eeprom_data[][3] = {
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/* dataH dataM dataL */
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{0x01, 0x00, 0x01},
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{0x01, 0x80, 0x11},
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{0x05, 0x00, 0x14},
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{0x05, 0x00, 0x1c},
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{0x0d, 0x00, 0x1e},
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{0x05, 0x00, 0x1f},
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{0x05, 0x05, 0x19},
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{0x05, 0x01, 0x1b},
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{0x05, 0x09, 0x1e},
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{0x0d, 0x89, 0x2e},
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{0x05, 0x89, 0x2f},
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{0x05, 0x0d, 0xd9},
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{0x05, 0x09, 0xf1},
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};
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/* write 1 byte */
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static void reg_w1(struct gspca_dev *gspca_dev,
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__u16 index, __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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0x02,
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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, 1, 500);
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}
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/* write 2 bytes */
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static void reg_w2(struct gspca_dev *gspca_dev,
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u16 index, u16 value)
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{
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gspca_dev->usb_buf[0] = value;
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gspca_dev->usb_buf[1] = value >> 8;
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usb_control_msg(gspca_dev->dev,
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usb_sndctrlpipe(gspca_dev->dev, 0),
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0x02,
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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, 2, 500);
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}
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static void tv_8532WriteEEprom(struct gspca_dev *gspca_dev)
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{
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int i;
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reg_w1(gspca_dev, R01_TIMING_CONTROL_LOW, CMD_EEprom_Open);
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for (i = 0; i < ARRAY_SIZE(eeprom_data); i++) {
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reg_w1(gspca_dev, R03_TABLE_ADDR, i);
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reg_w1(gspca_dev, R04_WTRAM_DATA_L, eeprom_data[i][2]);
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reg_w1(gspca_dev, R05_WTRAM_DATA_M, eeprom_data[i][1]);
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reg_w1(gspca_dev, R06_WTRAM_DATA_H, eeprom_data[i][0]);
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reg_w1(gspca_dev, R08_RAM_WRITE_ACTION, 0);
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}
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reg_w1(gspca_dev, R07_TABLE_LEN, i);
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reg_w1(gspca_dev, R01_TIMING_CONTROL_LOW, CMD_EEprom_Close);
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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 = sif_mode;
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cam->nmodes = ARRAY_SIZE(sif_mode);
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sd->exposure = EXPOSURE_DEF;
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sd->gain = GAIN_DEF;
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return 0;
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}
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static void tv_8532_setReg(struct gspca_dev *gspca_dev)
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{
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reg_w1(gspca_dev, R3B_Test3, 0x0a); /* Test0Sel = 10 */
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/******************************************************/
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reg_w1(gspca_dev, R0E_AD_HEIGHTL, 0x90);
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reg_w1(gspca_dev, R0F_AD_HEIGHTH, 0x01);
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reg_w2(gspca_dev, R1C_AD_EXPOSE_TIMEL, 0x018f);
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reg_w1(gspca_dev, R10_AD_COL_BEGINL, 0x44);
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/* begin active line */
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reg_w1(gspca_dev, R11_AD_COL_BEGINH, 0x00);
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/* mirror and digital gain */
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reg_w1(gspca_dev, R14_AD_ROW_BEGINL, 0x0a);
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reg_w1(gspca_dev, R94_AD_BITCONTROL, 0x02);
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reg_w1(gspca_dev, R91_AD_SLOPEREG, 0x00);
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reg_w1(gspca_dev, R00_PART_CONTROL, LATENT_CHANGE | EXPO_CHANGE);
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/* = 0x84 */
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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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tv_8532WriteEEprom(gspca_dev);
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return 0;
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}
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static void setexposure(struct gspca_dev *gspca_dev)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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reg_w2(gspca_dev, R1C_AD_EXPOSE_TIMEL, sd->exposure);
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reg_w1(gspca_dev, R00_PART_CONTROL, LATENT_CHANGE | EXPO_CHANGE);
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/* 0x84 */
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}
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static void setgain(struct gspca_dev *gspca_dev)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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reg_w2(gspca_dev, R20_GAIN_G1L, sd->gain);
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reg_w2(gspca_dev, R22_GAIN_RL, sd->gain);
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reg_w2(gspca_dev, R24_GAIN_BL, sd->gain);
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reg_w2(gspca_dev, R26_GAIN_G2L, sd->gain);
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}
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/* -- start the camera -- */
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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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reg_w1(gspca_dev, R0C_AD_WIDTHL, 0xe8); /* 0x20; 0x0c */
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reg_w1(gspca_dev, R0D_AD_WIDTHH, 0x03);
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/************************************************/
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reg_w1(gspca_dev, R28_QUANT, 0x90);
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/* 0x72 compressed mode 0x28 */
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if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
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/* 176x144 */
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reg_w1(gspca_dev, R29_LINE, 0x41);
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/* CIF - 2 lines/packet */
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} else {
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/* 352x288 */
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reg_w1(gspca_dev, R29_LINE, 0x81);
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/* CIF - 2 lines/packet */
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}
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/************************************************/
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reg_w1(gspca_dev, R2C_POLARITY, 0x10); /* slow clock */
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reg_w1(gspca_dev, R2D_POINT, 0x14);
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reg_w1(gspca_dev, R2E_POINTH, 0x01);
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reg_w1(gspca_dev, R2F_POINTB, 0x12);
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reg_w1(gspca_dev, R30_POINTBH, 0x01);
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tv_8532_setReg(gspca_dev);
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setexposure(gspca_dev);
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setgain(gspca_dev);
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/************************************************/
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reg_w1(gspca_dev, R31_UPD, 0x01); /* update registers */
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msleep(200);
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reg_w1(gspca_dev, R31_UPD, 0x00); /* end update */
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gspca_dev->empty_packet = 0; /* check the empty packets */
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sd->packet = 0; /* ignore the first packets */
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return 0;
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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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reg_w1(gspca_dev, R3B_Test3, 0x0b); /* Test0Sel = 11 = GPIO */
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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 packet_type0, packet_type1;
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packet_type0 = packet_type1 = INTER_PACKET;
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if (gspca_dev->empty_packet) {
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gspca_dev->empty_packet = 0;
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sd->packet = gspca_dev->height / 2;
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packet_type0 = FIRST_PACKET;
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} else if (sd->packet == 0)
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return; /* 2 more lines in 352x288 ! */
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sd->packet--;
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if (sd->packet == 0)
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packet_type1 = LAST_PACKET;
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/* each packet contains:
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* - header 2 bytes
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* - RGRG line
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* - 4 bytes
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* - GBGB line
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* - 4 bytes
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||
|
|
*/
|
||
|
|
gspca_frame_add(gspca_dev, packet_type0,
|
||
|
|
data + 2, gspca_dev->width);
|
||
|
|
gspca_frame_add(gspca_dev, packet_type1,
|
||
|
|
data + gspca_dev->width + 5, gspca_dev->width);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val)
|
||
|
|
{
|
||
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
|
|
||
|
|
sd->exposure = val;
|
||
|
|
if (gspca_dev->streaming)
|
||
|
|
setexposure(gspca_dev);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val)
|
||
|
|
{
|
||
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
|
|
||
|
|
*val = sd->exposure;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val)
|
||
|
|
{
|
||
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
|
|
||
|
|
sd->gain = val;
|
||
|
|
if (gspca_dev->streaming)
|
||
|
|
setgain(gspca_dev);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val)
|
||
|
|
{
|
||
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
|
|
||
|
|
*val = sd->gain;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* sub-driver description */
|
||
|
|
static const struct sd_desc sd_desc = {
|
||
|
|
.name = MODULE_NAME,
|
||
|
|
.ctrls = sd_ctrls,
|
||
|
|
.nctrls = ARRAY_SIZE(sd_ctrls),
|
||
|
|
.config = sd_config,
|
||
|
|
.init = sd_init,
|
||
|
|
.start = sd_start,
|
||
|
|
.stopN = sd_stopN,
|
||
|
|
.pkt_scan = sd_pkt_scan,
|
||
|
|
};
|
||
|
|
|
||
|
|
/* -- module initialisation -- */
|
||
|
|
static const struct usb_device_id device_table[] = {
|
||
|
|
{USB_DEVICE(0x046d, 0x0920)},
|
||
|
|
{USB_DEVICE(0x046d, 0x0921)},
|
||
|
|
{USB_DEVICE(0x0545, 0x808b)},
|
||
|
|
{USB_DEVICE(0x0545, 0x8333)},
|
||
|
|
{USB_DEVICE(0x0923, 0x010f)},
|
||
|
|
{}
|
||
|
|
};
|
||
|
|
|
||
|
|
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_usb_driver(sd_driver);
|