diff options
Diffstat (limited to 'drivers/media/video/gspca/stk014.c')
| -rw-r--r-- | drivers/media/video/gspca/stk014.c | 562 |
1 files changed, 562 insertions, 0 deletions
diff --git a/drivers/media/video/gspca/stk014.c b/drivers/media/video/gspca/stk014.c new file mode 100644 index 00000000000..8fd4ff01362 --- /dev/null +++ b/drivers/media/video/gspca/stk014.c @@ -0,0 +1,562 @@ +/* + * Syntek DV4000 (STK014) subdriver + * + * Copyright (C) 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" + +#define DRIVER_VERSION_NUMBER KERNEL_VERSION(0, 0, 22) +static const char version[] = "0.0.22"; + +MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>"); +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; +}; + +/* global parameters */ +static int lightfreq = 50; +static int sd_quant = 7; /* <= 4 KO - 7: good (enough!) */ + +/* 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 struct ctrl sd_ctrls[] = { +#define SD_BRIGHTNESS 0 + { + { + .id = V4L2_CID_BRIGHTNESS, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Brightness", + .minimum = 0, + .maximum = 255, + .step = 1, + .default_value = 127, + }, + .set = sd_setbrightness, + .get = sd_getbrightness, + }, +#define SD_CONTRAST 1 + { + { + .id = V4L2_CID_CONTRAST, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Contrast", + .minimum = 0, + .maximum = 255, + .step = 1, + .default_value = 127, + }, + .set = sd_setcontrast, + .get = sd_getcontrast, + }, +#define SD_COLOR 2 + { + { + .id = V4L2_CID_SATURATION, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Saturation", + .minimum = 0, + .maximum = 255, + .step = 1, + .default_value = 127, + }, + .set = sd_setcolors, + .get = sd_getcolors, + }, +}; + +static struct cam_mode vga_mode[] = { + {V4L2_PIX_FMT_JPEG, 320, 240}, + {V4L2_PIX_FMT_JPEG, 640, 480}, +}; + +/* -- read a register -- */ +static int reg_read(struct gspca_dev *gspca_dev, + __u16 index, __u8 *buf) +{ + int ret; + struct usb_device *dev = gspca_dev->dev; + + ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), + 0x00, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0x00, + index, + buf, 1, + 500); + if (ret < 0) + PDEBUG(D_ERR, "reg_read err %d", ret); + return ret; +} + +/* -- write a register -- */ +static int reg_write(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_write err %d", ret); + return ret; +} + +/* -- get a value -- */ +static int rcv_val(struct gspca_dev *gspca_dev, + int ads, + int len) +{ + struct usb_device *dev = gspca_dev->dev; + int alen, ret; + unsigned char bulk_buf[4]; + + reg_write(gspca_dev, 0x634, (ads >> 16) & 0xff); + reg_write(gspca_dev, 0x635, (ads >> 8) & 0xff); + reg_write(gspca_dev, 0x636, ads & 0xff); + reg_write(gspca_dev, 0x637, 0); + reg_write(gspca_dev, 0x638, len & 0xff); + reg_write(gspca_dev, 0x639, len >> 8); + reg_write(gspca_dev, 0x63a, 0); + reg_write(gspca_dev, 0x63b, 0); + reg_write(gspca_dev, 0x630, 5); + if (len > sizeof bulk_buf) + return -1; + ret = usb_bulk_msg(dev, + usb_rcvbulkpipe(dev, 5), + bulk_buf, + len, + &alen, + 500); /* timeout in milliseconds */ + return ret; +} + +/* -- send a 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 value, seq; + unsigned char bulk_buf[4]; + + if (ads == 0x003f08) { + ret = reg_read(gspca_dev, 0x0704, &value); + if (ret < 0) + goto ko; + ret = reg_read(gspca_dev, 0x0705, &seq); + if (ret < 0) + goto ko; + ret = reg_read(gspca_dev, 0x0650, &value); + if (ret < 0) + goto ko; + reg_write(gspca_dev, 0x654, seq); + } else + reg_write(gspca_dev, 0x654, (ads >> 16) & 0xff); + reg_write(gspca_dev, 0x655, (ads >> 8) & 0xff); + reg_write(gspca_dev, 0x656, ads & 0xff); + reg_write(gspca_dev, 0x657, 0); + reg_write(gspca_dev, 0x658, 0x04); /* size */ + reg_write(gspca_dev, 0x659, 0); + reg_write(gspca_dev, 0x65a, 0); + reg_write(gspca_dev, 0x65b, 0); + reg_write(gspca_dev, 0x650, 5); + bulk_buf[0] = (val >> 24) & 0xff; + bulk_buf[1] = (val >> 16) & 0xff; + bulk_buf[2] = (val >> 8) & 0xff; + bulk_buf[3] = val & 0xff; + ret = usb_bulk_msg(dev, + usb_sndbulkpipe(dev, 6), + bulk_buf, + 4, + &alen, + 500); /* timeout in milliseconds */ + if (ret < 0) + goto ko; + if (ads == 0x003f08) { + seq += 4; + seq &= 0x3f; + reg_write(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; + + PDEBUG(D_CONF, "brightness: %d", sd->brightness); + 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; + + PDEBUG(D_CONF, "contrast: %d", sd->contrast); + 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; + + PDEBUG(D_CONF, "saturation: %d", + sd->colors); + parval = 0x08000000 /* saturation */ + + (sd->colors << 16); + set_par(gspca_dev, parval); +} + +/* 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 = &gspca_dev->cam; + + cam->dev_name = (char *) id->driver_info; + cam->epaddr = 0x02; + gspca_dev->cam.cam_mode = vga_mode; + gspca_dev->cam.nmodes = sizeof vga_mode / sizeof vga_mode[0]; + sd->brightness = sd_ctrls[SD_BRIGHTNESS].qctrl.default_value; + sd->contrast = sd_ctrls[SD_CONTRAST].qctrl.default_value; + sd->colors = sd_ctrls[SD_COLOR].qctrl.default_value; + return 0; +} + +/* this function is called at open time */ +static int sd_open(struct gspca_dev *gspca_dev) +{ + __u8 value; + int ret; + + /* check if the device responds */ + usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1); + ret = reg_read(gspca_dev, 0x0740, &value); + if (ret < 0) + return ret; + if (value != 0xff) { + PDEBUG(D_ERR|D_STREAM, "init reg: 0x%02x", value); + return -1; + } + return 0; +} + +/* -- start the camera -- */ +static void sd_start(struct gspca_dev *gspca_dev) +{ + __u8 dum; + int ret, value; + + /* 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) + goto out; + ret = reg_read(gspca_dev, 0x0630, &dum); + if (ret < 0) + goto out; + rcv_val(gspca_dev, 0x000020, 4); /* << (value ff ff ff ff) */ + ret = reg_read(gspca_dev, 0x0650, &dum); + if (ret < 0) + goto out; + snd_val(gspca_dev, 0x000020, 0xffffffff); + reg_write(gspca_dev, 0x0620, 0); + reg_write(gspca_dev, 0x0630, 0); + reg_write(gspca_dev, 0x0640, 0); + reg_write(gspca_dev, 0x0650, 0); + reg_write(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 ? */ + set_par(gspca_dev, lightfreq == 60 + ? 0x33780000 /* 60 Hz */ + : 0x33640000); /* 50 Hz */ + + /* 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; +out: + PDEBUG(D_ERR|D_STREAM, "camera start err %d", ret); +} + +static void sd_stopN(struct gspca_dev *gspca_dev) +{ + struct usb_device *dev = gspca_dev->dev; + __u8 value; + + set_par(gspca_dev, 0x02000000); + set_par(gspca_dev, 0x02000000); + usb_set_interface(dev, gspca_dev->iface, 1); + reg_read(gspca_dev, 0x0630, &value); + rcv_val(gspca_dev, 0x000020, 4); /* << (value ff ff ff ff) */ + reg_read(gspca_dev, 0x0650, &value); + snd_val(gspca_dev, 0x000020, 0xffffffff); + reg_write(gspca_dev, 0x0620, 0); + reg_write(gspca_dev, 0x0630, 0); + reg_write(gspca_dev, 0x0640, 0); + reg_write(gspca_dev, 0x0650, 0); + reg_write(gspca_dev, 0x0660, 0); + PDEBUG(D_STREAM, "camera stopped"); +} + +static void sd_stop0(struct gspca_dev *gspca_dev) +{ +} + +static void sd_close(struct gspca_dev *gspca_dev) +{ +} + +static void sd_pkt_scan(struct gspca_dev *gspca_dev, + struct gspca_frame *frame, /* target */ + unsigned char *data, /* isoc packet */ + int len) /* iso packet length */ +{ + int l; + + /* a frame starts with: + * - 0xff 0xfe + * - 0x08 0x00 // length (little endian ?!) + * - 4 bytes = size of whole frame (big endian - including header) + * - 0x00 0x0c + * - 0xff 0xd8 + * - .. JPEG image with escape sequences (ff 00) + */ + if (data[0] == 0xff && data[1] == 0xfe) { + if (gspca_dev->last_packet_type == INTER_PACKET) { + PDEBUG(D_ERR|D_FRAM, "sof actual l: %d init l: %d", + frame->data_end - frame->data, + frame->v4l2_buf.bytesused); + } + + /* put the JPEG headaer */ + jpeg_put_header(gspca_dev, frame, sd_quant, 0x22); + + /* beginning of the frame */ +#define STKHDRSZ 12 + l = (data[4] << 24) /* frame size */ + + (data[5] << 16) + + (data[6] << 8) + + data[7] + - STKHDRSZ + + (frame->data_end - frame->data) + + 2; /* EOF (ff d9) */ + gspca_frame_add(gspca_dev, INTER_PACKET, frame, + data + STKHDRSZ, len - STKHDRSZ); +#undef STKHDRSZ + frame->v4l2_buf.bytesused = l; + return; + } + if (gspca_dev->last_packet_type != INTER_PACKET) { + if (gspca_dev->last_packet_type == LAST_PACKET) { + PDEBUG(D_ERR|D_PACK, "mof actual l: %d init l: %d", + frame->data_end - frame->data, + frame->v4l2_buf.bytesused); + } + return; + } + + /* intermediate packet */ + l = frame->data_end - frame->data; + if (len < frame->v4l2_buf.bytesused - 2 - l) { + gspca_frame_add(gspca_dev, INTER_PACKET, frame, + data, len); + return; + } + + /* last packet */ + if (len > frame->v4l2_buf.bytesused - 2 - l) + len = frame->v4l2_buf.bytesused - 2 - l; + gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len); + gspca_frame_add(gspca_dev, LAST_PACKET, frame, "\xff\xd9", 2); +} + +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; +} + +/* sub-driver description */ +static struct sd_desc sd_desc = { + .name = MODULE_NAME, + .ctrls = sd_ctrls, + .nctrls = sizeof sd_ctrls / sizeof sd_ctrls[0], + .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 __devinitdata struct usb_device_id device_table[] = { + {USB_DEVICE(0x05e1, 0x0893), DVNM("Syntek DV4000")}, + {} +}; +MODULE_DEVICE_TABLE(usb, device_table); + +/* -- device connect -- */ +static int sd_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + PDEBUG(D_PROBE, "camera probe"); + return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd)); +} + +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; + info("v%s registered", version); + 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); + +module_param(lightfreq, int, 0644); +MODULE_PARM_DESC(lightfreq, "Light frequency 50 or 60 Hz"); +module_param_named(quant, sd_quant, int, 0644); +MODULE_PARM_DESC(quant, "Quantization index (0..8)"); |