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path: root/drivers/media/video/gspca/tv8532.c
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Diffstat (limited to 'drivers/media/video/gspca/tv8532.c')
-rw-r--r--drivers/media/video/gspca/tv8532.c670
1 files changed, 670 insertions, 0 deletions
diff --git a/drivers/media/video/gspca/tv8532.c b/drivers/media/video/gspca/tv8532.c
new file mode 100644
index 00000000000..0b793899095
--- /dev/null
+++ b/drivers/media/video/gspca/tv8532.c
@@ -0,0 +1,670 @@
+/*
+ * Quickcam cameras initialization data
+ *
+ * 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 MODULE_NAME "tv8532"
+
+#include "gspca.h"
+
+#define DRIVER_VERSION_NUMBER KERNEL_VERSION(2, 1, 7)
+static const char version[] = "2.1.7";
+
+MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
+MODULE_DESCRIPTION("TV8532 USB Camera Driver");
+MODULE_LICENSE("GPL");
+
+/* specific webcam descriptor */
+struct sd {
+ struct gspca_dev gspca_dev; /* !! must be the first item */
+
+ int buflen; /* current length of tmpbuf */
+ __u8 tmpbuf[352 * 288 + 10 * 288]; /* no protection... */
+ __u8 tmpbuf2[352 * 288]; /* no protection... */
+
+ unsigned short brightness;
+ unsigned short contrast;
+
+ char packet;
+ char synchro;
+};
+
+/* V4L2 controls supported by the driver */
+static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
+
+static struct ctrl sd_ctrls[] = {
+#define SD_BRIGHTNESS 0
+ {
+ {
+ .id = V4L2_CID_BRIGHTNESS,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Brightness",
+ .minimum = 1,
+ .maximum = 0x2ff,
+ .step = 1,
+ .default_value = 0x18f,
+ },
+ .set = sd_setbrightness,
+ .get = sd_getbrightness,
+ },
+#define SD_CONTRAST 1
+ {
+ {
+ .id = V4L2_CID_CONTRAST,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Contrast",
+ .minimum = 0,
+ .maximum = 0xffff,
+ .step = 1,
+ .default_value = 0x7fff,
+ },
+ .set = sd_setcontrast,
+ .get = sd_getcontrast,
+ },
+};
+
+static 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},
+};
+
+/*
+ * Initialization data: this is the first set-up data written to the
+ * device (before the open data).
+ */
+#define TESTCLK 0x10 /* reg 0x2c -> 0x12 //10 */
+#define TESTCOMP 0x90 /* reg 0x28 -> 0x80 */
+#define TESTLINE 0x81 /* reg 0x29 -> 0x81 */
+#define QCIFLINE 0x41 /* reg 0x29 -> 0x81 */
+#define TESTPTL 0x14 /* reg 0x2D -> 0x14 */
+#define TESTPTH 0x01 /* reg 0x2E -> 0x01 */
+#define TESTPTBL 0x12 /* reg 0x2F -> 0x0a */
+#define TESTPTBH 0x01 /* reg 0x30 -> 0x01 */
+#define ADWIDTHL 0xe8 /* reg 0x0c -> 0xe8 */
+#define ADWIDTHH 0x03 /* reg 0x0d -> 0x03 */
+#define ADHEIGHL 0x90 /* reg 0x0e -> 0x91 //93 */
+#define ADHEIGHH 0x01 /* reg 0x0f -> 0x01 */
+#define EXPOL 0x8f /* reg 0x1c -> 0x8f */
+#define EXPOH 0x01 /* reg 0x1d -> 0x01 */
+#define ADCBEGINL 0x44 /* reg 0x10 -> 0x46 //47 */
+#define ADCBEGINH 0x00 /* reg 0x11 -> 0x00 */
+#define ADRBEGINL 0x0a /* reg 0x14 -> 0x0b //0x0c */
+#define ADRBEGINH 0x00 /* reg 0x15 -> 0x00 */
+#define TV8532_CMD_UPDATE 0x84
+
+#define TV8532_EEprom_Add 0x03
+#define TV8532_EEprom_DataL 0x04
+#define TV8532_EEprom_DataM 0x05
+#define TV8532_EEprom_DataH 0x06
+#define TV8532_EEprom_TableLength 0x07
+#define TV8532_EEprom_Write 0x08
+#define TV8532_PART_CTRL 0x00
+#define TV8532_CTRL 0x01
+#define TV8532_CMD_EEprom_Open 0x30
+#define TV8532_CMD_EEprom_Close 0x29
+#define TV8532_UDP_UPDATE 0x31
+#define TV8532_GPIO 0x39
+#define TV8532_GPIO_OE 0x3B
+#define TV8532_REQ_RegWrite 0x02
+#define TV8532_REQ_RegRead 0x03
+
+#define TV8532_ADWIDTH_L 0x0C
+#define TV8532_ADWIDTH_H 0x0D
+#define TV8532_ADHEIGHT_L 0x0E
+#define TV8532_ADHEIGHT_H 0x0F
+#define TV8532_EXPOSURE 0x1C
+#define TV8532_QUANT_COMP 0x28
+#define TV8532_MODE_PACKET 0x29
+#define TV8532_SETCLK 0x2C
+#define TV8532_POINT_L 0x2D
+#define TV8532_POINT_H 0x2E
+#define TV8532_POINTB_L 0x2F
+#define TV8532_POINTB_H 0x30
+#define TV8532_BUDGET_L 0x2A
+#define TV8532_BUDGET_H 0x2B
+#define TV8532_VID_L 0x34
+#define TV8532_VID_H 0x35
+#define TV8532_PID_L 0x36
+#define TV8532_PID_H 0x37
+#define TV8532_DeviceID 0x83
+#define TV8532_AD_SLOPE 0x91
+#define TV8532_AD_BITCTRL 0x94
+#define TV8532_AD_COLBEGIN_L 0x10
+#define TV8532_AD_COLBEGIN_H 0x11
+#define TV8532_AD_ROWBEGIN_L 0x14
+#define TV8532_AD_ROWBEGIN_H 0x15
+
+static const __u32 tv_8532_eeprom_data[] = {
+/* add dataL dataM dataH */
+ 0x00010001, 0x01018011, 0x02050014, 0x0305001c,
+ 0x040d001e, 0x0505001f, 0x06050519, 0x0705011b,
+ 0x0805091e, 0x090d892e, 0x0a05892f, 0x0b050dd9,
+ 0x0c0509f1, 0
+};
+
+static int reg_r(struct gspca_dev *gspca_dev,
+ __u16 index)
+{
+ usb_control_msg(gspca_dev->dev,
+ usb_rcvctrlpipe(gspca_dev->dev, 0),
+ TV8532_REQ_RegRead,
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0, /* value */
+ index, gspca_dev->usb_buf, 1,
+ 500);
+ return gspca_dev->usb_buf[0];
+}
+
+/* write 1 byte */
+static void reg_w_1(struct gspca_dev *gspca_dev,
+ __u16 index, __u8 value)
+{
+ gspca_dev->usb_buf[0] = value;
+ usb_control_msg(gspca_dev->dev,
+ usb_sndctrlpipe(gspca_dev->dev, 0),
+ TV8532_REQ_RegWrite,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0, /* value */
+ index, gspca_dev->usb_buf, 1, 500);
+}
+
+/* write 2 bytes */
+static void reg_w_2(struct gspca_dev *gspca_dev,
+ __u16 index, __u8 val1, __u8 val2)
+{
+ gspca_dev->usb_buf[0] = val1;
+ gspca_dev->usb_buf[1] = val2;
+ usb_control_msg(gspca_dev->dev,
+ usb_sndctrlpipe(gspca_dev->dev, 0),
+ TV8532_REQ_RegWrite,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0, /* value */
+ index, gspca_dev->usb_buf, 2, 500);
+}
+
+static void tv_8532WriteEEprom(struct gspca_dev *gspca_dev)
+{
+ int i = 0;
+ __u8 reg, data0, data1, data2;
+
+ reg_w_1(gspca_dev, TV8532_GPIO, 0xb0);
+ reg_w_1(gspca_dev, TV8532_CTRL, TV8532_CMD_EEprom_Open);
+/* msleep(1); */
+ while (tv_8532_eeprom_data[i]) {
+ reg = (tv_8532_eeprom_data[i] & 0xff000000) >> 24;
+ reg_w_1(gspca_dev, TV8532_EEprom_Add, reg);
+ /* msleep(1); */
+ data0 = (tv_8532_eeprom_data[i] & 0x000000ff);
+ reg_w_1(gspca_dev, TV8532_EEprom_DataL, data0);
+ /* msleep(1); */
+ data1 = (tv_8532_eeprom_data[i] & 0x0000ff00) >> 8;
+ reg_w_1(gspca_dev, TV8532_EEprom_DataM, data1);
+ /* msleep(1); */
+ data2 = (tv_8532_eeprom_data[i] & 0x00ff0000) >> 16;
+ reg_w_1(gspca_dev, TV8532_EEprom_DataH, data2);
+ /* msleep(1); */
+ reg_w_1(gspca_dev, TV8532_EEprom_Write, 0);
+ /* msleep(10); */
+ i++;
+ }
+ reg_w_1(gspca_dev, TV8532_EEprom_TableLength, i);
+/* msleep(1); */
+ reg_w_1(gspca_dev, TV8532_CTRL, TV8532_CMD_EEprom_Close);
+ msleep(10);
+}
+
+/* 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;
+
+ tv_8532WriteEEprom(gspca_dev);
+
+ cam = &gspca_dev->cam;
+ cam->dev_name = (char *) id->driver_info;
+ cam->epaddr = 1;
+ cam->cam_mode = sif_mode;
+ cam->nmodes = sizeof sif_mode / sizeof sif_mode[0];
+
+ sd->brightness = sd_ctrls[SD_BRIGHTNESS].qctrl.default_value;
+ sd->contrast = sd_ctrls[SD_CONTRAST].qctrl.default_value;
+ return 0;
+}
+
+static void tv_8532ReadRegisters(struct gspca_dev *gspca_dev)
+{
+ __u8 data;
+
+ data = reg_r(gspca_dev, 0x0001);
+ PDEBUG(D_USBI, "register 0x01-> %x", data);
+ data = reg_r(gspca_dev, 0x0002);
+ PDEBUG(D_USBI, "register 0x02-> %x", data);
+ reg_r(gspca_dev, TV8532_ADWIDTH_L);
+ reg_r(gspca_dev, TV8532_ADWIDTH_H);
+ reg_r(gspca_dev, TV8532_QUANT_COMP);
+ reg_r(gspca_dev, TV8532_MODE_PACKET);
+ reg_r(gspca_dev, TV8532_SETCLK);
+ reg_r(gspca_dev, TV8532_POINT_L);
+ reg_r(gspca_dev, TV8532_POINT_H);
+ reg_r(gspca_dev, TV8532_POINTB_L);
+ reg_r(gspca_dev, TV8532_POINTB_H);
+ reg_r(gspca_dev, TV8532_BUDGET_L);
+ reg_r(gspca_dev, TV8532_BUDGET_H);
+ reg_r(gspca_dev, TV8532_VID_L);
+ reg_r(gspca_dev, TV8532_VID_H);
+ reg_r(gspca_dev, TV8532_PID_L);
+ reg_r(gspca_dev, TV8532_PID_H);
+ reg_r(gspca_dev, TV8532_DeviceID);
+ reg_r(gspca_dev, TV8532_AD_COLBEGIN_L);
+ reg_r(gspca_dev, TV8532_AD_COLBEGIN_H);
+ reg_r(gspca_dev, TV8532_AD_ROWBEGIN_L);
+ reg_r(gspca_dev, TV8532_AD_ROWBEGIN_H);
+}
+
+static void tv_8532_setReg(struct gspca_dev *gspca_dev)
+{
+ reg_w_1(gspca_dev, TV8532_AD_COLBEGIN_L,
+ ADCBEGINL); /* 0x10 */
+ reg_w_1(gspca_dev, TV8532_AD_COLBEGIN_H,
+ ADCBEGINH); /* also digital gain */
+ reg_w_1(gspca_dev, TV8532_PART_CTRL,
+ TV8532_CMD_UPDATE); /* 0x00<-0x84 */
+
+ reg_w_1(gspca_dev, TV8532_GPIO_OE, 0x0a);
+ /******************************************************/
+ reg_w_1(gspca_dev, TV8532_ADHEIGHT_L, ADHEIGHL); /* 0e */
+ reg_w_1(gspca_dev, TV8532_ADHEIGHT_H, ADHEIGHH); /* 0f */
+ reg_w_2(gspca_dev, TV8532_EXPOSURE,
+ EXPOL, EXPOH); /* 350d 0x014c; 1c */
+ reg_w_1(gspca_dev, TV8532_AD_COLBEGIN_L,
+ ADCBEGINL); /* 0x10 */
+ reg_w_1(gspca_dev, TV8532_AD_COLBEGIN_H,
+ ADCBEGINH); /* also digital gain */
+ reg_w_1(gspca_dev, TV8532_AD_ROWBEGIN_L,
+ ADRBEGINL); /* 0x14 */
+
+ reg_w_1(gspca_dev, TV8532_AD_SLOPE, 0x00); /* 0x91 */
+ reg_w_1(gspca_dev, TV8532_AD_BITCTRL, 0x02); /* 0x94 */
+
+ reg_w_1(gspca_dev, TV8532_CTRL,
+ TV8532_CMD_EEprom_Close); /* 0x01 */
+
+ reg_w_1(gspca_dev, TV8532_AD_SLOPE, 0x00); /* 0x91 */
+ reg_w_1(gspca_dev, TV8532_PART_CTRL,
+ TV8532_CMD_UPDATE); /* 0x00<-0x84 */
+}
+
+static void tv_8532_PollReg(struct gspca_dev *gspca_dev)
+{
+ int i;
+
+ /* strange polling from tgc */
+ for (i = 0; i < 10; i++) {
+ reg_w_1(gspca_dev, TV8532_SETCLK,
+ TESTCLK); /* 0x48; //0x08; 0x2c */
+ reg_w_1(gspca_dev, TV8532_PART_CTRL, TV8532_CMD_UPDATE);
+ reg_w_1(gspca_dev, TV8532_UDP_UPDATE, 0x01); /* 0x31 */
+ }
+}
+
+/* this function is called at open time */
+static int sd_open(struct gspca_dev *gspca_dev)
+{
+ reg_w_1(gspca_dev, TV8532_AD_SLOPE, 0x32);
+ reg_w_1(gspca_dev, TV8532_AD_BITCTRL, 0x00);
+ tv_8532ReadRegisters(gspca_dev);
+ reg_w_1(gspca_dev, TV8532_GPIO_OE, 0x0b);
+ reg_w_2(gspca_dev, TV8532_ADHEIGHT_L, ADHEIGHL,
+ ADHEIGHH); /* 401d 0x0169; 0e */
+ reg_w_2(gspca_dev, TV8532_EXPOSURE, EXPOL,
+ EXPOH); /* 350d 0x014c; 1c */
+ reg_w_1(gspca_dev, TV8532_ADWIDTH_L, ADWIDTHL); /* 0x20; 0x0c */
+ reg_w_1(gspca_dev, TV8532_ADWIDTH_H, ADWIDTHH); /* 0x0d */
+
+ /*******************************************************************/
+ reg_w_1(gspca_dev, TV8532_QUANT_COMP,
+ TESTCOMP); /* 0x72 compressed mode 0x28 */
+ reg_w_1(gspca_dev, TV8532_MODE_PACKET,
+ TESTLINE); /* 0x84; // CIF | 4 packet 0x29 */
+
+ /************************************************/
+ reg_w_1(gspca_dev, TV8532_SETCLK,
+ TESTCLK); /* 0x48; //0x08; 0x2c */
+ reg_w_1(gspca_dev, TV8532_POINT_L,
+ TESTPTL); /* 0x38; 0x2d */
+ reg_w_1(gspca_dev, TV8532_POINT_H,
+ TESTPTH); /* 0x04; 0x2e */
+ reg_w_1(gspca_dev, TV8532_POINTB_L,
+ TESTPTBL); /* 0x04; 0x2f */
+ reg_w_1(gspca_dev, TV8532_POINTB_H,
+ TESTPTBH); /* 0x04; 0x30 */
+ reg_w_1(gspca_dev, TV8532_PART_CTRL,
+ TV8532_CMD_UPDATE); /* 0x00<-0x84 */
+ /*************************************************/
+ reg_w_1(gspca_dev, TV8532_UDP_UPDATE, 0x01); /* 0x31 */
+ msleep(200);
+ reg_w_1(gspca_dev, TV8532_UDP_UPDATE, 0x00); /* 0x31 */
+ /*************************************************/
+ tv_8532_setReg(gspca_dev);
+ /*************************************************/
+ reg_w_1(gspca_dev, TV8532_GPIO_OE, 0x0b);
+ /*************************************************/
+ tv_8532_setReg(gspca_dev);
+ /*************************************************/
+ tv_8532_PollReg(gspca_dev);
+ return 0;
+}
+
+static void setbrightness(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ int brightness = sd->brightness;
+
+ reg_w_2(gspca_dev, TV8532_EXPOSURE,
+ brightness >> 8, brightness); /* 1c */
+ reg_w_1(gspca_dev, TV8532_PART_CTRL, TV8532_CMD_UPDATE);
+}
+
+/* -- start the camera -- */
+static void sd_start(struct gspca_dev *gspca_dev)
+{
+ reg_w_1(gspca_dev, TV8532_AD_SLOPE, 0x32);
+ reg_w_1(gspca_dev, TV8532_AD_BITCTRL, 0x00);
+ tv_8532ReadRegisters(gspca_dev);
+ reg_w_1(gspca_dev, TV8532_GPIO_OE, 0x0b);
+ reg_w_2(gspca_dev, TV8532_ADHEIGHT_L,
+ ADHEIGHL, ADHEIGHH); /* 401d 0x0169; 0e */
+/* reg_w_2(gspca_dev, TV8532_EXPOSURE,
+ EXPOL, EXPOH); * 350d 0x014c; 1c */
+ setbrightness(gspca_dev);
+
+ reg_w_1(gspca_dev, TV8532_ADWIDTH_L, ADWIDTHL); /* 0x20; 0x0c */
+ reg_w_1(gspca_dev, TV8532_ADWIDTH_H, ADWIDTHH); /* 0x0d */
+
+ /************************************************/
+ reg_w_1(gspca_dev, TV8532_QUANT_COMP,
+ TESTCOMP); /* 0x72 compressed mode 0x28 */
+ if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
+ /* 176x144 */
+ reg_w_1(gspca_dev, TV8532_MODE_PACKET,
+ QCIFLINE); /* 0x84; // CIF | 4 packet 0x29 */
+ } else {
+ /* 352x288 */
+ reg_w_1(gspca_dev, TV8532_MODE_PACKET,
+ TESTLINE); /* 0x84; // CIF | 4 packet 0x29 */
+ }
+ /************************************************/
+ reg_w_1(gspca_dev, TV8532_SETCLK,
+ TESTCLK); /* 0x48; //0x08; 0x2c */
+ reg_w_1(gspca_dev, TV8532_POINT_L,
+ TESTPTL); /* 0x38; 0x2d */
+ reg_w_1(gspca_dev, TV8532_POINT_H,
+ TESTPTH); /* 0x04; 0x2e */
+ reg_w_1(gspca_dev, TV8532_POINTB_L,
+ TESTPTBL); /* 0x04; 0x2f */
+ reg_w_1(gspca_dev, TV8532_POINTB_H,
+ TESTPTBH); /* 0x04; 0x30 */
+ reg_w_1(gspca_dev, TV8532_PART_CTRL,
+ TV8532_CMD_UPDATE); /* 0x00<-0x84 */
+ /************************************************/
+ reg_w_1(gspca_dev, TV8532_UDP_UPDATE, 0x01); /* 0x31 */
+ msleep(200);
+ reg_w_1(gspca_dev, TV8532_UDP_UPDATE, 0x00); /* 0x31 */
+ /************************************************/
+ tv_8532_setReg(gspca_dev);
+ /************************************************/
+ reg_w_1(gspca_dev, TV8532_GPIO_OE, 0x0b);
+ /************************************************/
+ tv_8532_setReg(gspca_dev);
+ /************************************************/
+ tv_8532_PollReg(gspca_dev);
+ reg_w_1(gspca_dev, TV8532_UDP_UPDATE, 0x00); /* 0x31 */
+}
+
+static void sd_stopN(struct gspca_dev *gspca_dev)
+{
+ reg_w_1(gspca_dev, TV8532_GPIO_OE, 0x0b);
+}
+
+static void sd_stop0(struct gspca_dev *gspca_dev)
+{
+}
+
+static void sd_close(struct gspca_dev *gspca_dev)
+{
+}
+
+static void tv8532_preprocess(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+/* we should received a whole frame with header and EOL marker
+ * in gspca_dev->tmpbuf and return a GBRG pattern in gspca_dev->tmpbuf2
+ * sequence 2bytes header the Alternate pixels bayer GB 4 bytes
+ * Alternate pixels bayer RG 4 bytes EOL */
+ int width = gspca_dev->width;
+ int height = gspca_dev->height;
+ unsigned char *dst = sd->tmpbuf2;
+ unsigned char *data = sd->tmpbuf;
+ int i;
+
+ /* precompute where is the good bayer line */
+ if (((data[3] + data[width + 7]) >> 1)
+ + (data[4] >> 2)
+ + (data[width + 6] >> 1) >= ((data[2] + data[width + 6]) >> 1)
+ + (data[3] >> 2)
+ + (data[width + 5] >> 1))
+ data += 3;
+ else
+ data += 2;
+ for (i = 0; i < height / 2; i++) {
+ memcpy(dst, data, width);
+ data += width + 3;
+ dst += width;
+ memcpy(dst, data, width);
+ data += width + 7;
+ dst += width;
+ }
+}
+
+static void sd_pkt_scan(struct gspca_dev *gspca_dev,
+ struct gspca_frame *frame, /* target */
+ __u8 *data, /* isoc packet */
+ int len) /* iso packet length */
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ if (data[0] != 0x80) {
+ sd->packet++;
+ if (sd->buflen + len > sizeof sd->tmpbuf) {
+ if (gspca_dev->last_packet_type != DISCARD_PACKET) {
+ PDEBUG(D_PACK, "buffer overflow");
+ gspca_dev->last_packet_type = DISCARD_PACKET;
+ }
+ return;
+ }
+ memcpy(&sd->tmpbuf[sd->buflen], data, len);
+ sd->buflen += len;
+ return;
+ }
+
+ /* here we detect 0x80 */
+ /* counter is limited so we need few header for a frame :) */
+
+ /* header 0x80 0x80 0x80 0x80 0x80 */
+ /* packet 00 63 127 145 00 */
+ /* sof 0 1 1 0 0 */
+
+ /* update sequence */
+ if (sd->packet == 63 || sd->packet == 127)
+ sd->synchro = 1;
+
+ /* is there a frame start ? */
+ if (sd->packet >= (gspca_dev->height >> 1) - 1) {
+ PDEBUG(D_PACK, "SOF > %d packet %d", sd->synchro,
+ sd->packet);
+ if (!sd->synchro) { /* start of frame */
+ if (gspca_dev->last_packet_type == FIRST_PACKET) {
+ tv8532_preprocess(gspca_dev);
+ frame = gspca_frame_add(gspca_dev,
+ LAST_PACKET,
+ frame, sd->tmpbuf2,
+ gspca_dev->width *
+ gspca_dev->width);
+ }
+ gspca_frame_add(gspca_dev, FIRST_PACKET,
+ frame, data, 0);
+ memcpy(sd->tmpbuf, data, len);
+ sd->buflen = len;
+ sd->packet = 0;
+ return;
+ }
+ if (gspca_dev->last_packet_type != DISCARD_PACKET) {
+ PDEBUG(D_PACK,
+ "Warning wrong TV8532 frame detection %d",
+ sd->packet);
+ gspca_dev->last_packet_type = DISCARD_PACKET;
+ }
+ return;
+ }
+
+ if (!sd->synchro) {
+ /* Drop packet frame corrupt */
+ PDEBUG(D_PACK, "DROP SOF %d packet %d",
+ sd->synchro, sd->packet);
+ sd->packet = 0;
+ gspca_dev->last_packet_type = DISCARD_PACKET;
+ return;
+ }
+ sd->synchro = 1;
+ sd->packet++;
+ memcpy(&sd->tmpbuf[sd->buflen], data, len);
+ sd->buflen += len;
+}
+
+static void setcontrast(struct gspca_dev *gspca_dev)
+{
+}
+
+static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->brightness = val;
+ if (gspca_dev->streaming)
+ setbrightness(gspca_dev);
+ return 0;
+}
+
+static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->brightness;
+ return 0;
+}
+
+static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->contrast = val;
+ if (gspca_dev->streaming)
+ setcontrast(gspca_dev);
+ return 0;
+}
+
+static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->contrast;
+ return 0;
+}
+
+/* sub-driver description */
+static const struct sd_desc sd_desc = {
+ .name = MODULE_NAME,
+ .ctrls = sd_ctrls,
+ .nctrls = ARRAY_SIZE(sd_ctrls),
+ .config = sd_config,
+ .open = sd_open,
+ .start = sd_start,
+ .stopN = sd_stopN,
+ .stop0 = sd_stop0,
+ .close = sd_close,
+ .pkt_scan = sd_pkt_scan,
+};
+
+/* -- module initialisation -- */
+#define DVNM(name) .driver_info = (kernel_ulong_t) name
+static const __devinitdata struct usb_device_id device_table[] = {
+ {USB_DEVICE(0x046d, 0x0920), DVNM("QC Express")},
+ {USB_DEVICE(0x046d, 0x0921), DVNM("Labtec Webcam")},
+ {USB_DEVICE(0x0545, 0x808b), DVNM("Veo Stingray")},
+ {USB_DEVICE(0x0545, 0x8333), DVNM("Veo Stingray")},
+ {USB_DEVICE(0x0923, 0x010f), DVNM("ICM532 cams")},
+ {}
+};
+
+MODULE_DEVICE_TABLE(usb, device_table);
+
+/* -- device connect -- */
+static int sd_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
+ THIS_MODULE);
+}
+
+static struct usb_driver sd_driver = {
+ .name = MODULE_NAME,
+ .id_table = device_table,
+ .probe = sd_probe,
+ .disconnect = gspca_disconnect,
+};
+
+/* -- module insert / remove -- */
+static int __init sd_mod_init(void)
+{
+ if (usb_register(&sd_driver) < 0)
+ return -1;
+ PDEBUG(D_PROBE, "v%s registered", version);
+ return 0;
+}
+
+static void __exit sd_mod_exit(void)
+{
+ usb_deregister(&sd_driver);
+ PDEBUG(D_PROBE, "deregistered");
+}
+
+module_init(sd_mod_init);
+module_exit(sd_mod_exit);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-27 11:27:14 +0000