/* * Etoms Et61x151 GPL Linux driver by Michel Xhaard (09/09/2004) * * V4L2 by Jean-Francois Moine <http://moinejf.free.fr> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #define MODULE_NAME "etoms" #include "gspca.h" MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>"); MODULE_DESCRIPTION("Etoms USB Camera Driver"); MODULE_LICENSE("GPL"); /* specific webcam descriptor */ struct sd { struct gspca_dev gspca_dev; /* !! must be the first item */ unsigned char autogain; char sensor; #define SENSOR_PAS106 0 #define SENSOR_TAS5130CXX 1 signed char ag_cnt; #define AG_CNT_START 13 }; static const struct v4l2_pix_format vga_mode[] = { {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, .bytesperline = 320, .sizeimage = 320 * 240, .colorspace = V4L2_COLORSPACE_SRGB, .priv = 1}, /* {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, .bytesperline = 640, .sizeimage = 640 * 480, .colorspace = V4L2_COLORSPACE_SRGB, .priv = 0}, */ }; static const struct v4l2_pix_format sif_mode[] = { {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, .bytesperline = 176, .sizeimage = 176 * 144, .colorspace = V4L2_COLORSPACE_SRGB, .priv = 1}, {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, .bytesperline = 352, .sizeimage = 352 * 288, .colorspace = V4L2_COLORSPACE_SRGB, .priv = 0}, }; #define ETOMS_ALT_SIZE_1000 12 #define ET_GPIO_DIR_CTRL 0x04 /* Control IO bit[0..5] (0 in 1 out) */ #define ET_GPIO_OUT 0x05 /* Only IO data */ #define ET_GPIO_IN 0x06 /* Read Only IO data */ #define ET_RESET_ALL 0x03 #define ET_ClCK 0x01 #define ET_CTRL 0x02 /* enable i2c OutClck Powerdown mode */ #define ET_COMP 0x12 /* Compression register */ #define ET_MAXQt 0x13 #define ET_MINQt 0x14 #define ET_COMP_VAL0 0x02 #define ET_COMP_VAL1 0x03 #define ET_REG1d 0x1d #define ET_REG1e 0x1e #define ET_REG1f 0x1f #define ET_REG20 0x20 #define ET_REG21 0x21 #define ET_REG22 0x22 #define ET_REG23 0x23 #define ET_REG24 0x24 #define ET_REG25 0x25 /* base registers for luma calculation */ #define ET_LUMA_CENTER 0x39 #define ET_G_RED 0x4d #define ET_G_GREEN1 0x4e #define ET_G_BLUE 0x4f #define ET_G_GREEN2 0x50 #define ET_G_GR_H 0x51 #define ET_G_GB_H 0x52 #define ET_O_RED 0x34 #define ET_O_GREEN1 0x35 #define ET_O_BLUE 0x36 #define ET_O_GREEN2 0x37 #define ET_SYNCHRO 0x68 #define ET_STARTX 0x69 #define ET_STARTY 0x6a #define ET_WIDTH_LOW 0x6b #define ET_HEIGTH_LOW 0x6c #define ET_W_H_HEIGTH 0x6d #define ET_REG6e 0x6e /* OBW */ #define ET_REG6f 0x6f /* OBW */ #define ET_REG70 0x70 /* OBW_AWB */ #define ET_REG71 0x71 /* OBW_AWB */ #define ET_REG72 0x72 /* OBW_AWB */ #define ET_REG73 0x73 /* Clkdelay ns */ #define ET_REG74 0x74 /* test pattern */ #define ET_REG75 0x75 /* test pattern */ #define ET_I2C_CLK 0x8c #define ET_PXL_CLK 0x60 #define ET_I2C_BASE 0x89 #define ET_I2C_COUNT 0x8a #define ET_I2C_PREFETCH 0x8b #define ET_I2C_REG 0x88 #define ET_I2C_DATA7 0x87 #define ET_I2C_DATA6 0x86 #define ET_I2C_DATA5 0x85 #define ET_I2C_DATA4 0x84 #define ET_I2C_DATA3 0x83 #define ET_I2C_DATA2 0x82 #define ET_I2C_DATA1 0x81 #define ET_I2C_DATA0 0x80 #define PAS106_REG2 0x02 /* pxlClk = systemClk/(reg2) */ #define PAS106_REG3 0x03 /* line/frame H [11..4] */ #define PAS106_REG4 0x04 /* line/frame L [3..0] */ #define PAS106_REG5 0x05 /* exposure time line offset(default 5) */ #define PAS106_REG6 0x06 /* exposure time pixel offset(default 6) */ #define PAS106_REG7 0x07 /* signbit Dac (default 0) */ #define PAS106_REG9 0x09 #define PAS106_REG0e 0x0e /* global gain [4..0](default 0x0e) */ #define PAS106_REG13 0x13 /* end i2c write */ static const __u8 GainRGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 }; static const __u8 I2c2[] = { 0x08, 0x08, 0x08, 0x08, 0x0d }; static const __u8 I2c3[] = { 0x12, 0x05 }; static const __u8 I2c4[] = { 0x41, 0x08 }; /* read 'len' bytes to gspca_dev->usb_buf */ static void reg_r(struct gspca_dev *gspca_dev, __u16 index, __u16 len) { struct usb_device *dev = gspca_dev->dev; #ifdef GSPCA_DEBUG if (len > USB_BUF_SZ) { pr_err("reg_r: buffer overflow\n"); return; } #endif usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE, 0, index, gspca_dev->usb_buf, len, 500); PDEBUG(D_USBI, "reg read [%02x] -> %02x ..", index, gspca_dev->usb_buf[0]); } static void reg_w_val(struct gspca_dev *gspca_dev, __u16 index, __u8 val) { struct usb_device *dev = gspca_dev->dev; gspca_dev->usb_buf[0] = val; usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE, 0, index, gspca_dev->usb_buf, 1, 500); } static void reg_w(struct gspca_dev *gspca_dev, __u16 index, const __u8 *buffer, __u16 len) { struct usb_device *dev = gspca_dev->dev; #ifdef GSPCA_DEBUG if (len > USB_BUF_SZ) { pr_err("reg_w: buffer overflow\n"); return; } PDEBUG(D_USBO, "reg write [%02x] = %02x..", index, *buffer); #endif memcpy(gspca_dev->usb_buf, buffer, len); usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE, 0, index, gspca_dev->usb_buf, len, 500); } static int i2c_w(struct gspca_dev *gspca_dev, __u8 reg, const __u8 *buffer, int len, __u8 mode) { /* buffer should be [D0..D7] */ __u8 ptchcount; /* set the base address */ reg_w_val(gspca_dev, ET_I2C_BASE, 0x40); /* sensor base for the pas106 */ /* set count and prefetch */ ptchcount = ((len & 0x07) << 4) | (mode & 0x03); reg_w_val(gspca_dev, ET_I2C_COUNT, ptchcount); /* set the register base */ reg_w_val(gspca_dev, ET_I2C_REG, reg); while (--len >= 0) reg_w_val(gspca_dev, ET_I2C_DATA0 + len, buffer[len]); return 0; } static int i2c_r(struct gspca_dev *gspca_dev, __u8 reg) { /* set the base address */ reg_w_val(gspca_dev, ET_I2C_BASE, 0x40); /* sensor base for the pas106 */ /* set count and prefetch (cnd: 4 bits - mode: 4 bits) */ reg_w_val(gspca_dev, ET_I2C_COUNT, 0x11); reg_w_val(gspca_dev, ET_I2C_REG, reg); /* set the register base */ reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x02); /* prefetch */ reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x00); reg_r(gspca_dev, ET_I2C_DATA0, 1); /* read one byte */ return 0; } static int Et_WaitStatus(struct gspca_dev *gspca_dev) { int retry = 10; while (retry--) { reg_r(gspca_dev, ET_ClCK, 1); if (gspca_dev->usb_buf[0] != 0) return 1; } return 0; } static int et_video(struct gspca_dev *gspca_dev, int on) { int ret; reg_w_val(gspca_dev, ET_GPIO_OUT, on ? 0x10 /* startvideo - set Bit5 */ : 0); /* stopvideo */ ret = Et_WaitStatus(gspca_dev); if (ret != 0) PDEBUG(D_ERR, "timeout video on/off"); return ret; } static void Et_init2(struct gspca_dev *gspca_dev) { __u8 value; static const __u8 FormLine[] = { 0x84, 0x03, 0x14, 0xf4, 0x01, 0x05 }; PDEBUG(D_STREAM, "Open Init2 ET"); reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 0x2f); reg_w_val(gspca_dev, ET_GPIO_OUT, 0x10); reg_r(gspca_dev, ET_GPIO_IN, 1); reg_w_val(gspca_dev, ET_ClCK, 0x14); /* 0x14 // 0x16 enabled pattern */ reg_w_val(gspca_dev, ET_CTRL, 0x1b); /* compression et subsampling */ if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) value = ET_COMP_VAL1; /* 320 */ else value = ET_COMP_VAL0; /* 640 */ reg_w_val(gspca_dev, ET_COMP, value); reg_w_val(gspca_dev, ET_MAXQt, 0x1f); reg_w_val(gspca_dev, ET_MINQt, 0x04); /* undocumented registers */ reg_w_val(gspca_dev, ET_REG1d, 0xff); reg_w_val(gspca_dev, ET_REG1e, 0xff); reg_w_val(gspca_dev, ET_REG1f, 0xff); reg_w_val(gspca_dev, ET_REG20, 0x35); reg_w_val(gspca_dev, ET_REG21, 0x01); reg_w_val(gspca_dev, ET_REG22, 0x00); reg_w_val(gspca_dev, ET_REG23, 0xff); reg_w_val(gspca_dev, ET_REG24, 0xff); reg_w_val(gspca_dev, ET_REG25, 0x0f); /* colors setting */ reg_w_val(gspca_dev, 0x30, 0x11); /* 0x30 */ reg_w_val(gspca_dev, 0x31, 0x40); reg_w_val(gspca_dev, 0x32, 0x00); reg_w_val(gspca_dev, ET_O_RED, 0x00); /* 0x34 */ reg_w_val(gspca_dev, ET_O_GREEN1, 0x00); reg_w_val(gspca_dev, ET_O_BLUE, 0x00); reg_w_val(gspca_dev, ET_O_GREEN2, 0x00); /*************/ reg_w_val(gspca_dev, ET_G_RED, 0x80); /* 0x4d */ reg_w_val(gspca_dev, ET_G_GREEN1, 0x80); reg_w_val(gspca_dev, ET_G_BLUE, 0x80); reg_w_val(gspca_dev, ET_G_GREEN2, 0x80); reg_w_val(gspca_dev, ET_G_GR_H, 0x00); reg_w_val(gspca_dev, ET_G_GB_H, 0x00); /* 0x52 */ /* Window control registers */ reg_w_val(gspca_dev, 0x61, 0x80); /* use cmc_out */ reg_w_val(gspca_dev, 0x62, 0x02); reg_w_val(gspca_dev, 0x63, 0x03); reg_w_val(gspca_dev, 0x64, 0x14); reg_w_val(gspca_dev, 0x65, 0x0e); reg_w_val(gspca_dev, 0x66, 0x02); reg_w_val(gspca_dev, 0x67, 0x02); /**************************************/ reg_w_val(gspca_dev, ET_SYNCHRO, 0x8f); /* 0x68 */ reg_w_val(gspca_dev, ET_STARTX, 0x69); /* 0x6a //0x69 */ reg_w_val(gspca_dev, ET_STARTY, 0x0d); /* 0x0d //0x0c */ reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x80); reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0xe0); reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x60); /* 6d */ reg_w_val(gspca_dev, ET_REG6e, 0x86); reg_w_val(gspca_dev, ET_REG6f, 0x01); reg_w_val(gspca_dev, ET_REG70, 0x26); reg_w_val(gspca_dev, ET_REG71, 0x7a); reg_w_val(gspca_dev, ET_REG72, 0x01); /* Clock Pattern registers ***************** */ reg_w_val(gspca_dev, ET_REG73, 0x00); reg_w_val(gspca_dev, ET_REG74, 0x18); /* 0x28 */ reg_w_val(gspca_dev, ET_REG75, 0x0f); /* 0x01 */ /**********************************************/ reg_w_val(gspca_dev, 0x8a, 0x20); reg_w_val(gspca_dev, 0x8d, 0x0f); reg_w_val(gspca_dev, 0x8e, 0x08); /**************************************/ reg_w_val(gspca_dev, 0x03, 0x08); reg_w_val(gspca_dev, ET_PXL_CLK, 0x03); reg_w_val(gspca_dev, 0x81, 0xff); reg_w_val(gspca_dev, 0x80, 0x00); reg_w_val(gspca_dev, 0x81, 0xff); reg_w_val(gspca_dev, 0x80, 0x20); reg_w_val(gspca_dev, 0x03, 0x01); reg_w_val(gspca_dev, 0x03, 0x00); reg_w_val(gspca_dev, 0x03, 0x08); /********************************************/ /* reg_r(gspca_dev, ET_I2C_BASE, 1); always 0x40 as the pas106 ??? */ /* set the sensor */ if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) value = 0x04; /* 320 */ else /* 640 */ value = 0x1e; /* 0x17 * setting PixelClock * 0x03 mean 24/(3+1) = 6 Mhz * 0x05 -> 24/(5+1) = 4 Mhz * 0x0b -> 24/(11+1) = 2 Mhz * 0x17 -> 24/(23+1) = 1 Mhz */ reg_w_val(gspca_dev, ET_PXL_CLK, value); /* now set by fifo the FormatLine setting */ reg_w(gspca_dev, 0x62, FormLine, 6); /* set exposure times [ 0..0x78] 0->longvalue 0x78->shortvalue */ reg_w_val(gspca_dev, 0x81, 0x47); /* 0x47; */ reg_w_val(gspca_dev, 0x80, 0x40); /* 0x40; */ /* Pedro change */ /* Brightness change Brith+ decrease value */ /* Brigth- increase value */ /* original value = 0x70; */ reg_w_val(gspca_dev, 0x81, 0x30); /* 0x20; - set brightness */ reg_w_val(gspca_dev, 0x80, 0x20); /* 0x20; */ } static void setbrightness(struct gspca_dev *gspca_dev, s32 val) { int i; for (i = 0; i < 4; i++) reg_w_val(gspca_dev, ET_O_RED + i, val); } static void setcontrast(struct gspca_dev *gspca_dev, s32 val) { __u8 RGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 }; memset(RGBG, val, sizeof(RGBG) - 2); reg_w(gspca_dev, ET_G_RED, RGBG, 6); } static void setcolors(struct gspca_dev *gspca_dev, s32 val) { struct sd *sd = (struct sd *) gspca_dev; __u8 I2cc[] = { 0x05, 0x02, 0x02, 0x05, 0x0d }; __u8 i2cflags = 0x01; /* __u8 green = 0; */ I2cc[3] = val; /* red */ I2cc[0] = 15 - val; /* blue */ /* green = 15 - ((((7*I2cc[0]) >> 2 ) + I2cc[3]) >> 1); */ /* I2cc[1] = I2cc[2] = green; */ if (sd->sensor == SENSOR_PAS106) { i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3); i2c_w(gspca_dev, PAS106_REG9, I2cc, sizeof I2cc, 1); } /* PDEBUG(D_CONF , "Etoms red %d blue %d green %d", I2cc[3], I2cc[0], green); */ } static s32 getcolors(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; if (sd->sensor == SENSOR_PAS106) { /* i2c_r(gspca_dev, PAS106_REG9); * blue */ i2c_r(gspca_dev, PAS106_REG9 + 3); /* red */ return gspca_dev->usb_buf[0] & 0x0f; } return 0; } static void setautogain(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; if (sd->autogain) sd->ag_cnt = AG_CNT_START; else sd->ag_cnt = -1; } static void Et_init1(struct gspca_dev *gspca_dev) { __u8 value; /* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0x22, 0xac, 0x00, 0x01, 0x00}; */ __u8 I2c0[] = { 0x0a, 0x12, 0x05, 0x6d, 0xcd, 0x00, 0x01, 0x00 }; /* try 1/120 0x6d 0xcd 0x40 */ /* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0xfe, 0xfe, 0xc0, 0x01, 0x00}; * 1/60000 hmm ?? */ PDEBUG(D_STREAM, "Open Init1 ET"); reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 7); reg_r(gspca_dev, ET_GPIO_IN, 1); reg_w_val(gspca_dev, ET_RESET_ALL, 1); reg_w_val(gspca_dev, ET_RESET_ALL, 0); reg_w_val(gspca_dev, ET_ClCK, 0x10); reg_w_val(gspca_dev, ET_CTRL, 0x19); /* compression et subsampling */ if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) value = ET_COMP_VAL1; else value = ET_COMP_VAL0; PDEBUG(D_STREAM, "Open mode %d Compression %d", gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv, value); reg_w_val(gspca_dev, ET_COMP, value); reg_w_val(gspca_dev, ET_MAXQt, 0x1d); reg_w_val(gspca_dev, ET_MINQt, 0x02); /* undocumented registers */ reg_w_val(gspca_dev, ET_REG1d, 0xff); reg_w_val(gspca_dev, ET_REG1e, 0xff); reg_w_val(gspca_dev, ET_REG1f, 0xff); reg_w_val(gspca_dev, ET_REG20, 0x35); reg_w_val(gspca_dev, ET_REG21, 0x01); reg_w_val(gspca_dev, ET_REG22, 0x00); reg_w_val(gspca_dev, ET_REG23, 0xf7); reg_w_val(gspca_dev, ET_REG24, 0xff); reg_w_val(gspca_dev, ET_REG25, 0x07); /* colors setting */ reg_w_val(gspca_dev, ET_G_RED, 0x80); reg_w_val(gspca_dev, ET_G_GREEN1, 0x80); reg_w_val(gspca_dev, ET_G_BLUE, 0x80); reg_w_val(gspca_dev, ET_G_GREEN2, 0x80); reg_w_val(gspca_dev, ET_G_GR_H, 0x00); reg_w_val(gspca_dev, ET_G_GB_H, 0x00); /* Window control registers */ reg_w_val(gspca_dev, ET_SYNCHRO, 0xf0); reg_w_val(gspca_dev, ET_STARTX, 0x56); /* 0x56 */ reg_w_val(gspca_dev, ET_STARTY, 0x05); /* 0x04 */ reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x60); reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0x20); reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x50); reg_w_val(gspca_dev, ET_REG6e, 0x86); reg_w_val(gspca_dev, ET_REG6f, 0x01); reg_w_val(gspca_dev, ET_REG70, 0x86); reg_w_val(gspca_dev, ET_REG71, 0x14); reg_w_val(gspca_dev, ET_REG72, 0x00); /* Clock Pattern registers */ reg_w_val(gspca_dev, ET_REG73, 0x00); reg_w_val(gspca_dev, ET_REG74, 0x00); reg_w_val(gspca_dev, ET_REG75, 0x0a); reg_w_val(gspca_dev, ET_I2C_CLK, 0x04); reg_w_val(gspca_dev, ET_PXL_CLK, 0x01); /* set the sensor */ if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) { I2c0[0] = 0x06; i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1); i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1); value = 0x06; i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1); i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1); /* value = 0x1f; */ value = 0x04; i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1); } else { I2c0[0] = 0x0a; i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1); i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1); value = 0x0a; i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1); i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1); value = 0x04; /* value = 0x10; */ i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1); /* bit 2 enable bit 1:2 select 0 1 2 3 value = 0x07; * curve 0 * i2c_w(gspca_dev, PAS106_REG0f, &value, 1, 1); */ } /* value = 0x01; */ /* value = 0x22; */ /* i2c_w(gspca_dev, PAS106_REG5, &value, 1, 1); */ /* magnetude and sign bit for DAC */ i2c_w(gspca_dev, PAS106_REG7, I2c4, sizeof I2c4, 1); /* now set by fifo the whole colors setting */ reg_w(gspca_dev, ET_G_RED, GainRGBG, 6); setcolors(gspca_dev, getcolors(gspca_dev)); } /* 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; sd->sensor = id->driver_info; if (sd->sensor == SENSOR_PAS106) { cam->cam_mode = sif_mode; cam->nmodes = ARRAY_SIZE(sif_mode); } else { cam->cam_mode = vga_mode; cam->nmodes = ARRAY_SIZE(vga_mode); } sd->ag_cnt = -1; return 0; } /* this function is called at probe and resume time */ static int sd_init(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; if (sd->sensor == SENSOR_PAS106) Et_init1(gspca_dev); else Et_init2(gspca_dev); reg_w_val(gspca_dev, ET_RESET_ALL, 0x08); et_video(gspca_dev, 0); /* video off */ return 0; } /* -- start the camera -- */ static int sd_start(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; if (sd->sensor == SENSOR_PAS106) Et_init1(gspca_dev); else Et_init2(gspca_dev); setautogain(gspca_dev); reg_w_val(gspca_dev, ET_RESET_ALL, 0x08); et_video(gspca_dev, 1); /* video on */ return 0; } static void sd_stopN(struct gspca_dev *gspca_dev) { et_video(gspca_dev, 0); /* video off */ } static __u8 Et_getgainG(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; if (sd->sensor == SENSOR_PAS106) { i2c_r(gspca_dev, PAS106_REG0e); PDEBUG(D_CONF, "Etoms gain G %d", gspca_dev->usb_buf[0]); return gspca_dev->usb_buf[0]; } return 0x1f; } static void Et_setgainG(struct gspca_dev *gspca_dev, __u8 gain) { struct sd *sd = (struct sd *) gspca_dev; if (sd->sensor == SENSOR_PAS106) { __u8 i2cflags = 0x01; i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3); i2c_w(gspca_dev, PAS106_REG0e, &gain, 1, 1); } } #define BLIMIT(bright) \ (u8)((bright > 0x1f) ? 0x1f : ((bright < 4) ? 3 : bright)) #define LIMIT(color) \ (u8)((color > 0xff) ? 0xff : ((color < 0) ? 0 : color)) static void do_autogain(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; __u8 luma; __u8 luma_mean = 128; __u8 luma_delta = 20; __u8 spring = 4; int Gbright; __u8 r, g, b; if (sd->ag_cnt < 0) return; if (--sd->ag_cnt >= 0) return; sd->ag_cnt = AG_CNT_START; Gbright = Et_getgainG(gspca_dev); reg_r(gspca_dev, ET_LUMA_CENTER, 4); g = (gspca_dev->usb_buf[0] + gspca_dev->usb_buf[3]) >> 1; r = gspca_dev->usb_buf[1]; b = gspca_dev->usb_buf[2]; r = ((r << 8) - (r << 4) - (r << 3)) >> 10; b = ((b << 7) >> 10); g = ((g << 9) + (g << 7) + (g << 5)) >> 10; luma = LIMIT(r + g + b); PDEBUG(D_FRAM, "Etoms luma G %d", luma); if (luma < luma_mean - luma_delta || luma > luma_mean + luma_delta) { Gbright += (luma_mean - luma) >> spring; Gbright = BLIMIT(Gbright); PDEBUG(D_FRAM, "Etoms Gbright %d", Gbright); Et_setgainG(gspca_dev, (__u8) Gbright); } } #undef BLIMIT #undef LIMIT static void sd_pkt_scan(struct gspca_dev *gspca_dev, u8 *data, /* isoc packet */ int len) /* iso packet length */ { int seqframe; seqframe = data[0] & 0x3f; len = (int) (((data[0] & 0xc0) << 2) | data[1]); if (seqframe == 0x3f) { PDEBUG(D_FRAM, "header packet found datalength %d !!", len); PDEBUG(D_FRAM, "G %d R %d G %d B %d", data[2], data[3], data[4], data[5]); data += 30; /* don't change datalength as the chips provided it */ gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0); gspca_frame_add(gspca_dev, FIRST_PACKET, data, len); return; } if (len) { data += 8; gspca_frame_add(gspca_dev, INTER_PACKET, data, len); } else { /* Drop Packet */ gspca_dev->last_packet_type = DISCARD_PACKET; } } static int sd_s_ctrl(struct v4l2_ctrl *ctrl) { struct gspca_dev *gspca_dev = container_of(ctrl->handler, struct gspca_dev, ctrl_handler); struct sd *sd = (struct sd *)gspca_dev; gspca_dev->usb_err = 0; if (!gspca_dev->streaming) return 0; switch (ctrl->id) { case V4L2_CID_BRIGHTNESS: setbrightness(gspca_dev, ctrl->val); break; case V4L2_CID_CONTRAST: setcontrast(gspca_dev, ctrl->val); break; case V4L2_CID_SATURATION: setcolors(gspca_dev, ctrl->val); break; case V4L2_CID_AUTOGAIN: sd->autogain = ctrl->val; setautogain(gspca_dev); break; } return gspca_dev->usb_err; } static const struct v4l2_ctrl_ops sd_ctrl_ops = { .s_ctrl = sd_s_ctrl, }; static int sd_init_controls(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *)gspca_dev; struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; gspca_dev->vdev.ctrl_handler = hdl; v4l2_ctrl_handler_init(hdl, 4); v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_BRIGHTNESS, 1, 127, 1, 63); v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_CONTRAST, 0, 255, 1, 127); if (sd->sensor == SENSOR_PAS106) v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_SATURATION, 0, 15, 1, 7); v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_AUTOGAIN, 0, 1, 1, 1); if (hdl->error) { pr_err("Could not initialize controls\n"); return hdl->error; } return 0; } /* sub-driver description */ static const struct sd_desc sd_desc = { .name = MODULE_NAME, .config = sd_config, .init = sd_init, .init_controls = sd_init_controls, .start = sd_start, .stopN = sd_stopN, .pkt_scan = sd_pkt_scan, .dq_callback = do_autogain, }; /* -- module initialisation -- */ static const struct usb_device_id device_table[] = { {USB_DEVICE(0x102c, 0x6151), .driver_info = SENSOR_PAS106}, #if !defined CONFIG_USB_ET61X251 && !defined CONFIG_USB_ET61X251_MODULE {USB_DEVICE(0x102c, 0x6251), .driver_info = SENSOR_TAS5130CXX}, #endif {} }; 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, .reset_resume = gspca_resume, #endif }; module_usb_driver(sd_driver);