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/****************************************************************************
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# Mars-Semi MR97311A library #
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# Copyright (C) 2005 <bradlch@hotmail.com> #
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# Part of spca5xx project #
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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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# (at your option) any later version. #
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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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# 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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static int mr97311_init(struct usb_spca50x *pcam);
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static void mr97311_start(struct usb_spca50x *pcam);
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static void mr97311_stopN(struct usb_spca50x *pcam);
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static void mr97311_stop0(struct usb_spca50x *pcam);
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static int mr97311_config(struct usb_spca50x *pcam);
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static __u16 mr97311_getbrightness(struct usb_spca50x *spca50x);
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static __u16 mr97311_getcontrast(struct usb_spca50x *spca50x);
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static __u16 mr97311_getcolors(struct usb_spca50x *spca50x);
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static void mr97311_setbrightness(struct usb_spca50x *spca50x);
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static void mr97311_setcontrast(struct usb_spca50x *spca50x);
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static void mr97311_setcolors(struct usb_spca50x *spca50x);
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static void mr97311_shutdown(struct usb_spca50x *spca50x);
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static void mr97311_setAutobright(struct usb_spca50x *spca50x);
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static void mr97311_setquality(struct usb_spca50x *spca50x);
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static int mr97311_sofdetect(struct usb_spca50x *spca50x,struct spca50x_frame *frame, unsigned char *cdata,int *iPix, int seqnum, int *datalength);
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/*****************************************************************/
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static int mr97311_init(struct usb_spca50x *pcam){return 0;}
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static __u16 mr97311_getbrightness(struct usb_spca50x *spca50x){return 0;}
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static __u16 mr97311_getcontrast(struct usb_spca50x *spca50x){return 0;}
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static __u16 mr97311_getcolors(struct usb_spca50x *spca50x){return 0;}
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static void mr97311_setbrightness(struct usb_spca50x *spca50x){}
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static void mr97311_setcontrast(struct usb_spca50x *spca50x){}
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static void mr97311_setcolors(struct usb_spca50x *spca50x){}
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static void mr97311_shutdown(struct usb_spca50x *spca50x){}
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static void mr97311_setAutobright(struct usb_spca50x *spca50x){}
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static void mr97311_setquality(struct usb_spca50x *spca50x){}
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static void mr97311_stop0(struct usb_spca50x *pcam){}
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/****************************************************************/
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static struct cam_operation fmr97311 = {
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.initialize = mr97311_init,
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.configure = mr97311_config,
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.start = mr97311_start,
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.stopN = mr97311_stopN,
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.stop0 = mr97311_stop0,
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.get_bright = mr97311_getbrightness,
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.set_bright = mr97311_setbrightness,
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.get_contrast = mr97311_getcontrast,
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.set_contrast = mr97311_setcontrast,
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.get_colors = mr97311_getcolors,
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.set_colors = mr97311_setcolors,
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.set_autobright = mr97311_setAutobright,
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.set_quality = mr97311_setquality,
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.cam_shutdown = mr97311_shutdown,
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.sof_detect = mr97311_sofdetect,
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static int pcam_reg_write(struct usb_device *dev,
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__u16 index, unsigned char *value, int length);
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static void MISensor_BulkWrite(struct usb_device *dev, unsigned short *pch,
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char Address, int length, char controlbyte);
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//MI Register table //elvis
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ATTR_TOTAL_MI_REG = 242
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static void mr97311_stopN(struct usb_spca50x *pcam)
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result = pcam_reg_write(pcam->dev, data[0], data, 2);
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printk("Camera Stop failed \n");
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static int pcam_reg_write(struct usb_device *dev,
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__u16 index, unsigned char *value, int length)
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unsigned char buf[12];
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unsigned char index_value = 0;
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memset(buf, 0, sizeof(buf));
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for (i = 0; i < length; i++)
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rc = usb_control_msg(dev,
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usb_sndbulkpipe(dev, 4),
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0xc8, index_value, index, value, length, 5 * HZ);
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PDEBUG(1, "reg write: 0x%02X , result = 0x%x \n", index, rc);
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PDEBUG(1, "reg write: error %d \n", rc);
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static void mr97311_start(struct usb_spca50x *pcam)
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unsigned char data[242];
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unsigned short MI_buf[242];
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//struct usb_device *dev = pcam->dev;
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memset(data, 0, 242);
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memset(MI_buf, 0, 242);
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"usb_set_interface in pcamCameraStart , interface %d , alt 8 \n",
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if (usb_set_interface(pcam->dev, pcam->iface, 8) < 0) {
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err("Set packet size: set interface error");
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data[0] = 0x01; //address
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err_code = pcam_reg_write(pcam->dev, data[0], data, 0x02);
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printk("Register write failed \n");
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Initialize the MR97113 chip register
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data[0] = 0x00; //address
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data[1] = 0x0c | 0x01; //reg 0
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data[2] = 0x01; //reg 1
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switch (pcam->width) {
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data[3] = h_size / 8; //h_size , reg 2
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data[4] = v_size / 8; //v_size , reg 3
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data[5] = 0x30; // reg 4, MI, PAS5101 : 0x30 for 24mhz , 0x28 for 12mhz
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data[6] = 4; // reg 5, H start
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data[7] = 0xc0; // reg 6, gamma 1.5
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data[8] = 3; // reg 7, V start
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//if(pcam->width == 320 )
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//data[9]= 0x56; // reg 8, 24MHz, 2:1 scale down
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data[9] = 0x52; // reg 8, 24MHz, no scale down
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data[10] = 0x5d; // reg 9, I2C device address [for PAS5101 (0x40)] [for MI (0x5d)]
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err_code = pcam_reg_write(pcam->dev, data[0], data, 0x0b);
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PDEBUG(1, "Register write failed \n");
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data[0] = 0x23; //address
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data[1] = 0x09; // reg 35, append frame header
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err_code = pcam_reg_write(pcam->dev, data[0], data, 0x02);
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PDEBUG(1, "Register write failed \n");
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data[0] = 0x3C; //address
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if (pcam->width == 1280)
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data[1] = 200; // reg 60, pc-cam frame size (unit: 4KB) 800KB
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data[1] = 50; // 50 reg 60, pc-cam frame size (unit: 4KB) 200KB
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err_code = pcam_reg_write(pcam->dev, data[0], data, 0x02);
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PDEBUG(1, "Register write failed \n");
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if (0) { // fixed dark-gain
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data[1] = 0; // reg 94, Y Gain (1.75)
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data[2] = 0; // reg 95, UV Gain (1.75)
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data[3] = 0x3f; // reg 96, Y Gain/UV Gain/disable auto dark-gain
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data[4] = 0; // reg 97, set fixed dark level
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data[5] = 0; // reg 98, don't care
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} else { // auto dark-gain
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data[1] = 0; // reg 94, Y Gain (auto)
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data[2] = 0; // reg 95, UV Gain (1.75)
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data[3] = 0x78; // reg 96, Y Gain/UV Gain/disable auto dark-gain
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switch (pcam->width) {
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data[4] = 154; // reg 97, %3 shadow point (unit: 256 pixel)
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data[5] = 51; // reg 98, %1 highlight point (uint: 256 pixel)
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data[4] = 36; // reg 97, %3 shadow point (unit: 256 pixel)
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data[5] = 12; // reg 98, %1 highlight point (uint: 256 pixel)
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data[4] = 9; // reg 97, %3 shadow point (unit: 256 pixel)
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data[5] = 3; // reg 98, %1 highlight point (uint: 256 pixel)
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data[0] = 0x5E; // address
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err_code = pcam_reg_write(pcam->dev, data[0], data, 0x06);
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PDEBUG(1, "Register write failed \n");
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data[1] = 0x13; // reg 103, first pixel B, disable sharpness
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err_code = pcam_reg_write(pcam->dev, data[0], data, 0x02);
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PDEBUG(1, "Register write failed \n");
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initialize the value of MI sensor...
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MI_buf[REG_HW_MI_1] = 0x000a;
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MI_buf[REG_HW_MI_2] = 0x000c;
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MI_buf[REG_HW_MI_3] = 0x0405;
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MI_buf[REG_HW_MI_4] = 0x0507;
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//mi_Attr_Reg_[REG_HW_MI_5] = 0x01ff;//13
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MI_buf[REG_HW_MI_5] = 0x0013; //13
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MI_buf[REG_HW_MI_6] = 0x001f; // vertical blanking
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//mi_Attr_Reg_[REG_HW_MI_6] = 0x0400; // vertical blanking
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MI_buf[REG_HW_MI_7] = 0x0002;
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//mi_Attr_Reg_[REG_HW_MI_9] = 0x015f;
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//mi_Attr_Reg_[REG_HW_MI_9] = 0x030f;
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MI_buf[REG_HW_MI_9] = 0x0374;
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MI_buf[REG_HW_MI_B] = 0x0000;
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MI_buf[REG_HW_MI_C] = 0x0000;
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MI_buf[REG_HW_MI_D] = 0x0000;
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MI_buf[REG_HW_MI_1E] = 0x8000;
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// mi_Attr_Reg_[REG_HW_MI_20] = 0x1104;
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MI_buf[REG_HW_MI_20] = 0x1104; //0x111c;
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MI_buf[REG_HW_MI_2B] = 0x0008;
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// mi_Attr_Reg_[REG_HW_MI_2C] = 0x000f;
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MI_buf[REG_HW_MI_2C] = 0x001f; //lita suggest
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MI_buf[REG_HW_MI_2D] = 0x0008;
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MI_buf[REG_HW_MI_2E] = 0x0008;
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MI_buf[REG_HW_MI_35] = 0x0051;
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MI_buf[REG_HW_MI_5F] = 0x0904; //fail to write
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MI_buf[REG_HW_MI_60] = 0x0000;
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MI_buf[REG_HW_MI_61] = 0x0000;
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MI_buf[REG_HW_MI_62] = 0x0498;
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MI_buf[REG_HW_MI_63] = 0x0000;
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MI_buf[REG_HW_MI_64] = 0x0000;
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MI_buf[REG_HW_MI_F1] = 0x0001;
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//changing while setting up the different value of dx/dy
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if (pcam->width != 1280) {
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MI_buf[0x01] = 0x010a;
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MI_buf[0x02] = 0x014c;
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MI_buf[0x03] = 0x01e5;
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MI_buf[0x04] = 0x0287;
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MI_buf[0x20] = 0x1104;
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MISensor_BulkWrite(pcam->dev, MI_buf + 1, 1, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 2, 2, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 3, 3, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 4, 4, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 5, 5, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 6, 6, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 7, 7, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 9, 9, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 0x0B, 0x0B, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 0x0C, 0x0C, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 0x0D, 0x0D, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 0x1E, 0x1E, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 0x20, 0x20, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 0x2B, 0x2B, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 0x2C, 0x2C, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 0x2D, 0x2D, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 0x2E, 0x2E, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 0x35, 0x35, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 0x5F, 0x5F, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 0x60, 0x60, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 0x61, 0x61, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 0x62, 0x62, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 0x63, 0x63, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 0x64, 0x64, 1, 0);
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MISensor_BulkWrite(pcam->dev, MI_buf + 0xF1, 0xF1, 1, 0);
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intpipe = usb_sndintpipe(pcam->dev, 0);
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err_code = usb_clear_halt(pcam->dev, intpipe);
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data[1] = 0x4D; // ISOC transfering enable...
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err_code = pcam_reg_write(pcam->dev, data[0], data, 0x02);
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PDEBUG(1, "Register write failed \n");
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static void MISensor_BulkWrite(struct usb_device *dev, unsigned short *pch,
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char Address, int length, char controlbyte)
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int dest, src, result;
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unsigned char data[6];
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for (dest = 3, src = 0; src < length; src++) {
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data[1] = controlbyte;
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data[2] = Address + src;
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data[dest] = pch[src] >> 8; //high byte;
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data[dest + 1] = pch[src]; //low byte;
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result = usb_control_msg(dev,
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usb_sndbulkpipe(dev, 4),
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0x12, 0xc8, 0, Address, data, 5, 5 * HZ);
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PDEBUG(1, "reg write: 0x%02X , result = 0x%x \n", Address, result);
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printk("reg write: error %d \n", result);
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static int mr97311_config(struct usb_spca50x *spca50x)
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memset(spca50x->mode_cam, 0x00, TOTMODE * sizeof(struct mwebcam));
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spca50x->mode_cam[VGA].width = 640;
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spca50x->mode_cam[VGA].height = 480;
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spca50x->mode_cam[VGA].t_palette =
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P_JPEG | P_RAW | P_YUV420 | P_RGB32 | P_RGB24 | P_RGB16;
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spca50x->mode_cam[VGA].pipe = 1023;
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spca50x->mode_cam[VGA].method = 0;
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spca50x->mode_cam[VGA].mode = 1;
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spca50x->mode_cam[PAL].width = 384;
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spca50x->mode_cam[PAL].height = 288;
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spca50x->mode_cam[PAL].t_palette =
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P_YUV420 | P_RGB32 | P_RGB24 | P_RGB16;
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spca50x->mode_cam[PAL].pipe = 1023;
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spca50x->mode_cam[PAL].method = 1;
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spca50x->mode_cam[PAL].mode = 1;
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spca50x->mode_cam[SIF].width = 352;
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spca50x->mode_cam[SIF].height = 288;
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spca50x->mode_cam[SIF].t_palette =
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P_YUV420 | P_RGB32 | P_RGB24 | P_RGB16;
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spca50x->mode_cam[SIF].pipe = 1023;
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spca50x->mode_cam[SIF].method = 1;
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spca50x->mode_cam[SIF].mode = 1;
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spca50x->mode_cam[CIF].width = 320;
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spca50x->mode_cam[CIF].height = 240;
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spca50x->mode_cam[CIF].t_palette =
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P_JPEG | P_RAW | P_YUV420 | P_RGB32 | P_RGB24 | P_RGB16;
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spca50x->mode_cam[CIF].pipe = 896;
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spca50x->mode_cam[CIF].method = 0;
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spca50x->mode_cam[CIF].mode = 2;
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spca50x->mode_cam[QPAL].width = 192;
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spca50x->mode_cam[QPAL].height = 144;
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spca50x->mode_cam[QPAL].t_palette =
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P_YUV420 | P_RGB32 | P_RGB24 | P_RGB16;
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spca50x->mode_cam[QPAL].pipe = 896;
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spca50x->mode_cam[QPAL].method = 1;
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spca50x->mode_cam[QPAL].mode = 2;
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spca50x->mode_cam[QSIF].width = 176;
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spca50x->mode_cam[QSIF].height = 144;
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spca50x->mode_cam[QSIF].t_palette =
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P_YUV420 | P_RGB32 | P_RGB24 | P_RGB16;
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spca50x->mode_cam[QSIF].pipe = 896;
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spca50x->mode_cam[QSIF].method = 1;
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spca50x->mode_cam[QSIF].mode = 2;
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spca50x->qindex = 1; // set quantization table
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static int mr97311_sofdetect(struct usb_spca50x *spca50x,struct spca50x_frame *frame, unsigned char *cdata,int *iPix, int seqnum, int *datalength)
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for (p = 0; p < *datalength - 6; p++) {
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if ((cdata[0 + p] == 0xFF)
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&& (cdata[1 + p] == 0xFF)
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&& (cdata[2 + p] == 0x00)
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&& (cdata[3 + p] == 0xFF)
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&& (cdata[4 + p] == 0x96)
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if ((cdata[5 + p] == 0x64)
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|| (cdata[5 + p] == 0x65)
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|| (cdata[5 + p] == 0x66)
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|| (cdata[5 + p] == 0x67)) {
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*datalength -= *iPix;
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"Pcam header packet found, %d datalength %d !",