376 lines
9.6 KiB
C
376 lines
9.6 KiB
C
/*
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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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*/
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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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__u8 packet;
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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 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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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, s32 val)
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{
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reg_w2(gspca_dev, R1C_AD_EXPOSE_TIMEL, val);
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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, s32 val)
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{
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reg_w2(gspca_dev, R20_GAIN_G1L, val);
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reg_w2(gspca_dev, R22_GAIN_RL, val);
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reg_w2(gspca_dev, R24_GAIN_BL, val);
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reg_w2(gspca_dev, R26_GAIN_G2L, val);
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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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/************************************************/
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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->pixfmt.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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*/
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gspca_frame_add(gspca_dev, packet_type0,
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data + 2, gspca_dev->pixfmt.width);
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gspca_frame_add(gspca_dev, packet_type1,
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data + gspca_dev->pixfmt.width + 5,
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gspca_dev->pixfmt.width);
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}
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static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
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{
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struct gspca_dev *gspca_dev =
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container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
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gspca_dev->usb_err = 0;
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if (!gspca_dev->streaming)
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return 0;
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switch (ctrl->id) {
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case V4L2_CID_EXPOSURE:
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setexposure(gspca_dev, ctrl->val);
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break;
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case V4L2_CID_GAIN:
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setgain(gspca_dev, ctrl->val);
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break;
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}
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return gspca_dev->usb_err;
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}
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static const struct v4l2_ctrl_ops sd_ctrl_ops = {
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.s_ctrl = sd_s_ctrl,
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};
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static int sd_init_controls(struct gspca_dev *gspca_dev)
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{
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struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
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gspca_dev->vdev.ctrl_handler = hdl;
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v4l2_ctrl_handler_init(hdl, 2);
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v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
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V4L2_CID_EXPOSURE, 0, 0x18f, 1, 0x18f);
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v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
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V4L2_CID_GAIN, 0, 0x7ff, 1, 0x100);
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if (hdl->error) {
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pr_err("Could not initialize controls\n");
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return hdl->error;
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}
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return 0;
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}
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/* sub-driver description */
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static const struct sd_desc sd_desc = {
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.name = MODULE_NAME,
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.config = sd_config,
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.init = sd_init,
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.init_controls = sd_init_controls,
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.start = sd_start,
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.stopN = sd_stopN,
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.pkt_scan = sd_pkt_scan,
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};
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/* -- module initialisation -- */
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static const struct usb_device_id device_table[] = {
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{USB_DEVICE(0x046d, 0x0920)},
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{USB_DEVICE(0x046d, 0x0921)},
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{USB_DEVICE(0x0545, 0x808b)},
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{USB_DEVICE(0x0545, 0x8333)},
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{USB_DEVICE(0x0923, 0x010f)},
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{}
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};
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MODULE_DEVICE_TABLE(usb, device_table);
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/* -- device connect -- */
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static int sd_probe(struct usb_interface *intf,
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const struct usb_device_id *id)
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{
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return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
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THIS_MODULE);
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}
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static struct usb_driver sd_driver = {
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.name = MODULE_NAME,
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.id_table = device_table,
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.probe = sd_probe,
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.disconnect = gspca_disconnect,
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#ifdef CONFIG_PM
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.suspend = gspca_suspend,
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.resume = gspca_resume,
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.reset_resume = gspca_resume,
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#endif
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};
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module_usb_driver(sd_driver);
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