/* * Syntek DV4000 (STK014) subdriver * * Copyright (C) 2008 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 "stk014" #include "gspca.h" #include "jpeg.h" MODULE_AUTHOR("Jean-Francois Moine "); MODULE_DESCRIPTION("Syntek DV4000 (STK014) USB Camera Driver"); MODULE_LICENSE("GPL"); /* specific webcam descriptor */ struct sd { struct gspca_dev gspca_dev; /* !! must be the first item */ unsigned char brightness; unsigned char contrast; unsigned char colors; unsigned char lightfreq; u8 quality; u8 *jpeg_hdr; }; /* 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 int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val); static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val); static int sd_setfreq(struct gspca_dev *gspca_dev, __s32 val); static int sd_getfreq(struct gspca_dev *gspca_dev, __s32 *val); static struct ctrl sd_ctrls[] = { { { .id = V4L2_CID_BRIGHTNESS, .type = V4L2_CTRL_TYPE_INTEGER, .name = "Brightness", .minimum = 0, .maximum = 255, .step = 1, #define BRIGHTNESS_DEF 127 .default_value = BRIGHTNESS_DEF, }, .set = sd_setbrightness, .get = sd_getbrightness, }, { { .id = V4L2_CID_CONTRAST, .type = V4L2_CTRL_TYPE_INTEGER, .name = "Contrast", .minimum = 0, .maximum = 255, .step = 1, #define CONTRAST_DEF 127 .default_value = CONTRAST_DEF, }, .set = sd_setcontrast, .get = sd_getcontrast, }, { { .id = V4L2_CID_SATURATION, .type = V4L2_CTRL_TYPE_INTEGER, .name = "Color", .minimum = 0, .maximum = 255, .step = 1, #define COLOR_DEF 127 .default_value = COLOR_DEF, }, .set = sd_setcolors, .get = sd_getcolors, }, { { .id = V4L2_CID_POWER_LINE_FREQUENCY, .type = V4L2_CTRL_TYPE_MENU, .name = "Light frequency filter", .minimum = 1, .maximum = 2, /* 0: 0, 1: 50Hz, 2:60Hz */ .step = 1, #define FREQ_DEF 1 .default_value = FREQ_DEF, }, .set = sd_setfreq, .get = sd_getfreq, }, }; static const struct v4l2_pix_format vga_mode[] = { {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE, .bytesperline = 320, .sizeimage = 320 * 240 * 3 / 8 + 590, .colorspace = V4L2_COLORSPACE_JPEG, .priv = 1}, {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE, .bytesperline = 640, .sizeimage = 640 * 480 * 3 / 8 + 590, .colorspace = V4L2_COLORSPACE_JPEG, .priv = 0}, }; /* -- read a register -- */ static int reg_r(struct gspca_dev *gspca_dev, __u16 index) { struct usb_device *dev = gspca_dev->dev; int ret; ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0x00, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 0x00, index, gspca_dev->usb_buf, 1, 500); if (ret < 0) { PDEBUG(D_ERR, "reg_r err %d", ret); return ret; } return gspca_dev->usb_buf[0]; } /* -- write a register -- */ static int reg_w(struct gspca_dev *gspca_dev, __u16 index, __u16 value) { struct usb_device *dev = gspca_dev->dev; int ret; ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0x01, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, value, index, NULL, 0, 500); if (ret < 0) PDEBUG(D_ERR, "reg_w err %d", ret); return ret; } /* -- get a bulk value (4 bytes) -- */ static int rcv_val(struct gspca_dev *gspca_dev, int ads) { struct usb_device *dev = gspca_dev->dev; int alen, ret; reg_w(gspca_dev, 0x634, (ads >> 16) & 0xff); reg_w(gspca_dev, 0x635, (ads >> 8) & 0xff); reg_w(gspca_dev, 0x636, ads & 0xff); reg_w(gspca_dev, 0x637, 0); reg_w(gspca_dev, 0x638, 4); /* len & 0xff */ reg_w(gspca_dev, 0x639, 0); /* len >> 8 */ reg_w(gspca_dev, 0x63a, 0); reg_w(gspca_dev, 0x63b, 0); reg_w(gspca_dev, 0x630, 5); ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, 0x05), gspca_dev->usb_buf, 4, /* length */ &alen, 500); /* timeout in milliseconds */ return ret; } /* -- send a bulk value -- */ static int snd_val(struct gspca_dev *gspca_dev, int ads, unsigned int val) { struct usb_device *dev = gspca_dev->dev; int alen, ret; __u8 seq = 0; if (ads == 0x003f08) { ret = reg_r(gspca_dev, 0x0704); if (ret < 0) goto ko; ret = reg_r(gspca_dev, 0x0705); if (ret < 0) goto ko; seq = ret; /* keep the sequence number */ ret = reg_r(gspca_dev, 0x0650); if (ret < 0) goto ko; reg_w(gspca_dev, 0x654, seq); } else { reg_w(gspca_dev, 0x654, (ads >> 16) & 0xff); } reg_w(gspca_dev, 0x655, (ads >> 8) & 0xff); reg_w(gspca_dev, 0x656, ads & 0xff); reg_w(gspca_dev, 0x657, 0); reg_w(gspca_dev, 0x658, 0x04); /* size */ reg_w(gspca_dev, 0x659, 0); reg_w(gspca_dev, 0x65a, 0); reg_w(gspca_dev, 0x65b, 0); reg_w(gspca_dev, 0x650, 5); gspca_dev->usb_buf[0] = val >> 24; gspca_dev->usb_buf[1] = val >> 16; gspca_dev->usb_buf[2] = val >> 8; gspca_dev->usb_buf[3] = val; ret = usb_bulk_msg(dev, usb_sndbulkpipe(dev, 6), gspca_dev->usb_buf, 4, &alen, 500); /* timeout in milliseconds */ if (ret < 0) goto ko; if (ads == 0x003f08) { seq += 4; seq &= 0x3f; reg_w(gspca_dev, 0x705, seq); } return ret; ko: PDEBUG(D_ERR, "snd_val err %d", ret); return ret; } /* set a camera parameter */ static int set_par(struct gspca_dev *gspca_dev, int parval) { return snd_val(gspca_dev, 0x003f08, parval); } static void setbrightness(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; int parval; parval = 0x06000000 /* whiteness */ + (sd->brightness << 16); set_par(gspca_dev, parval); } static void setcontrast(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; int parval; parval = 0x07000000 /* contrast */ + (sd->contrast << 16); set_par(gspca_dev, parval); } static void setcolors(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; int parval; parval = 0x08000000 /* saturation */ + (sd->colors << 16); set_par(gspca_dev, parval); } static void setfreq(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; set_par(gspca_dev, sd->lightfreq == 1 ? 0x33640000 /* 50 Hz */ : 0x33780000); /* 60 Hz */ } /* 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; gspca_dev->cam.cam_mode = vga_mode; gspca_dev->cam.nmodes = ARRAY_SIZE(vga_mode); sd->brightness = BRIGHTNESS_DEF; sd->contrast = CONTRAST_DEF; sd->colors = COLOR_DEF; sd->lightfreq = FREQ_DEF; sd->quality = 80; return 0; } /* this function is called at probe and resume time */ static int sd_init(struct gspca_dev *gspca_dev) { int ret; /* check if the device responds */ usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1); ret = reg_r(gspca_dev, 0x0740); if (ret < 0) return ret; if (ret != 0xff) { PDEBUG(D_ERR|D_STREAM, "init reg: 0x%02x", ret); return -1; } return 0; } /* -- start the camera -- */ static int sd_start(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; int ret, value; /* create the JPEG header */ sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL); jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width, 0x22); /* JPEG 411 */ jpeg_set_qual(sd->jpeg_hdr, sd->quality); /* work on alternate 1 */ usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1); set_par(gspca_dev, 0x10000000); set_par(gspca_dev, 0x00000000); set_par(gspca_dev, 0x8002e001); set_par(gspca_dev, 0x14000000); if (gspca_dev->width > 320) value = 0x8002e001; /* 640x480 */ else value = 0x4001f000; /* 320x240 */ set_par(gspca_dev, value); ret = usb_set_interface(gspca_dev->dev, gspca_dev->iface, gspca_dev->alt); if (ret < 0) { PDEBUG(D_ERR|D_STREAM, "set intf %d %d failed", gspca_dev->iface, gspca_dev->alt); goto out; } ret = reg_r(gspca_dev, 0x0630); if (ret < 0) goto out; rcv_val(gspca_dev, 0x000020); /* << (value ff ff ff ff) */ ret = reg_r(gspca_dev, 0x0650); if (ret < 0) goto out; snd_val(gspca_dev, 0x000020, 0xffffffff); reg_w(gspca_dev, 0x0620, 0); reg_w(gspca_dev, 0x0630, 0); reg_w(gspca_dev, 0x0640, 0); reg_w(gspca_dev, 0x0650, 0); reg_w(gspca_dev, 0x0660, 0); setbrightness(gspca_dev); /* whiteness */ setcontrast(gspca_dev); /* contrast */ setcolors(gspca_dev); /* saturation */ set_par(gspca_dev, 0x09800000); /* Red ? */ set_par(gspca_dev, 0x0a800000); /* Green ? */ set_par(gspca_dev, 0x0b800000); /* Blue ? */ set_par(gspca_dev, 0x0d030000); /* Gamma ? */ setfreq(gspca_dev); /* light frequency */ /* start the video flow */ set_par(gspca_dev, 0x01000000); set_par(gspca_dev, 0x01000000); PDEBUG(D_STREAM, "camera started alt: 0x%02x", gspca_dev->alt); return 0; out: PDEBUG(D_ERR|D_STREAM, "camera start err %d", ret); return ret; } static void sd_stopN(struct gspca_dev *gspca_dev) { struct usb_device *dev = gspca_dev->dev; set_par(gspca_dev, 0x02000000); set_par(gspca_dev, 0x02000000); usb_set_interface(dev, gspca_dev->iface, 1); reg_r(gspca_dev, 0x0630); rcv_val(gspca_dev, 0x000020); /* << (value ff ff ff ff) */ reg_r(gspca_dev, 0x0650); snd_val(gspca_dev, 0x000020, 0xffffffff); reg_w(gspca_dev, 0x0620, 0); reg_w(gspca_dev, 0x0630, 0); reg_w(gspca_dev, 0x0640, 0); reg_w(gspca_dev, 0x0650, 0); reg_w(gspca_dev, 0x0660, 0); PDEBUG(D_STREAM, "camera stopped"); } static void sd_stop0(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; kfree(sd->jpeg_hdr); } 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; static unsigned char ffd9[] = {0xff, 0xd9}; /* a frame starts with: * - 0xff 0xfe * - 0x08 0x00 - length (little endian ?!) * - 4 bytes = size of whole frame (BE - including header) * - 0x00 0x0c * - 0xff 0xd8 * - .. JPEG image with escape sequences (ff 00) * (without ending - ff d9) */ if (data[0] == 0xff && data[1] == 0xfe) { frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame, ffd9, 2); /* put the JPEG 411 header */ gspca_frame_add(gspca_dev, FIRST_PACKET, frame, sd->jpeg_hdr, JPEG_HDR_SZ); /* beginning of the frame */ #define STKHDRSZ 12 data += STKHDRSZ; len -= STKHDRSZ; } gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len); } 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; } static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val) { struct sd *sd = (struct sd *) gspca_dev; sd->colors = val; if (gspca_dev->streaming) setcolors(gspca_dev); return 0; } static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val) { struct sd *sd = (struct sd *) gspca_dev; *val = sd->colors; return 0; } static int sd_setfreq(struct gspca_dev *gspca_dev, __s32 val) { struct sd *sd = (struct sd *) gspca_dev; sd->lightfreq = val; if (gspca_dev->streaming) setfreq(gspca_dev); return 0; } static int sd_getfreq(struct gspca_dev *gspca_dev, __s32 *val) { struct sd *sd = (struct sd *) gspca_dev; *val = sd->lightfreq; return 0; } static int sd_querymenu(struct gspca_dev *gspca_dev, struct v4l2_querymenu *menu) { switch (menu->id) { case V4L2_CID_POWER_LINE_FREQUENCY: switch (menu->index) { case 1: /* V4L2_CID_POWER_LINE_FREQUENCY_50HZ */ strcpy((char *) menu->name, "50 Hz"); return 0; case 2: /* V4L2_CID_POWER_LINE_FREQUENCY_60HZ */ strcpy((char *) menu->name, "60 Hz"); return 0; } break; } return -EINVAL; } /* sub-driver description */ static const struct sd_desc sd_desc = { .name = MODULE_NAME, .ctrls = sd_ctrls, .nctrls = ARRAY_SIZE(sd_ctrls), .config = sd_config, .init = sd_init, .start = sd_start, .stopN = sd_stopN, .stop0 = sd_stop0, .pkt_scan = sd_pkt_scan, .querymenu = sd_querymenu, }; /* -- module initialisation -- */ static const __devinitdata struct usb_device_id device_table[] = { {USB_DEVICE(0x05e1, 0x0893)}, {} }; MODULE_DEVICE_TABLE(usb, device_table); /* -- device connect -- */ static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id) { return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd), THIS_MODULE); } static struct usb_driver sd_driver = { .name = MODULE_NAME, .id_table = device_table, .probe = sd_probe, .disconnect = gspca_disconnect, #ifdef CONFIG_PM .suspend = gspca_suspend, .resume = gspca_resume, #endif }; /* -- module insert / remove -- */ static int __init sd_mod_init(void) { int ret; ret = usb_register(&sd_driver); if (ret < 0) return ret; info("registered"); return 0; } static void __exit sd_mod_exit(void) { usb_deregister(&sd_driver); info("deregistered"); } module_init(sd_mod_init); module_exit(sd_mod_exit);