diff options
Diffstat (limited to 'drivers/media/video/gspca/se401.c')
| -rw-r--r-- | drivers/media/video/gspca/se401.c | 774 |
1 files changed, 774 insertions, 0 deletions
diff --git a/drivers/media/video/gspca/se401.c b/drivers/media/video/gspca/se401.c new file mode 100644 index 000000000000..4c283c24c752 --- /dev/null +++ b/drivers/media/video/gspca/se401.c @@ -0,0 +1,774 @@ +/* + * GSPCA Endpoints (formerly known as AOX) se401 USB Camera sub Driver + * + * Copyright (C) 2011 Hans de Goede <hdegoede@redhat.com> + * + * Based on the v4l1 se401 driver which is: + * + * Copyright (c) 2000 Jeroen B. Vreeken (pe1rxq@amsat.org) + * + * 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 + * (at your option) 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 "se401" + +#define BULK_SIZE 4096 +#define PACKET_SIZE 1024 +#define READ_REQ_SIZE 64 +#define MAX_MODES ((READ_REQ_SIZE - 6) / 4) +/* The se401 compression algorithm uses a fixed quant factor, which + can be configured by setting the high nibble of the SE401_OPERATINGMODE + feature. This needs to exactly match what is in libv4l! */ +#define SE401_QUANT_FACT 8 + +#include <linux/input.h> +#include <linux/slab.h> +#include "gspca.h" +#include "se401.h" + +MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>"); +MODULE_DESCRIPTION("Endpoints se401"); +MODULE_LICENSE("GPL"); + +/* controls */ +enum e_ctrl { + BRIGHTNESS, + GAIN, + EXPOSURE, + FREQ, + NCTRL /* number of controls */ +}; + +/* exposure change state machine states */ +enum { + EXPO_CHANGED, + EXPO_DROP_FRAME, + EXPO_NO_CHANGE, +}; + +/* specific webcam descriptor */ +struct sd { + struct gspca_dev gspca_dev; /* !! must be the first item */ + struct gspca_ctrl ctrls[NCTRL]; + struct v4l2_pix_format fmts[MAX_MODES]; + int pixels_read; + int packet_read; + u8 packet[PACKET_SIZE]; + u8 restart_stream; + u8 button_state; + u8 resetlevel; + u8 resetlevel_frame_count; + int resetlevel_adjust_dir; + int expo_change_state; +}; + +static void setbrightness(struct gspca_dev *gspca_dev); +static void setgain(struct gspca_dev *gspca_dev); +static void setexposure(struct gspca_dev *gspca_dev); + +static const struct ctrl sd_ctrls[NCTRL] = { +[BRIGHTNESS] = { + { + .id = V4L2_CID_BRIGHTNESS, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Brightness", + .minimum = 0, + .maximum = 255, + .step = 1, + .default_value = 15, + }, + .set_control = setbrightness + }, +[GAIN] = { + { + .id = V4L2_CID_GAIN, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Gain", + .minimum = 0, + .maximum = 50, /* Really 63 but > 50 is not pretty */ + .step = 1, + .default_value = 25, + }, + .set_control = setgain + }, +[EXPOSURE] = { + { + .id = V4L2_CID_EXPOSURE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Exposure", + .minimum = 0, + .maximum = 32767, + .step = 1, + .default_value = 15000, + }, + .set_control = setexposure + }, +[FREQ] = { + { + .id = V4L2_CID_POWER_LINE_FREQUENCY, + .type = V4L2_CTRL_TYPE_MENU, + .name = "Light frequency filter", + .minimum = 0, + .maximum = 2, + .step = 1, + .default_value = 0, + }, + .set_control = setexposure + }, +}; + +static void se401_write_req(struct gspca_dev *gspca_dev, u16 req, u16 value, + int silent) +{ + int err; + + if (gspca_dev->usb_err < 0) + return; + + err = usb_control_msg(gspca_dev->dev, + usb_sndctrlpipe(gspca_dev->dev, 0), req, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, 0, NULL, 0, 1000); + if (err < 0) { + if (!silent) + err("write req failed req %#04x val %#04x error %d", + req, value, err); + gspca_dev->usb_err = err; + } +} + +static void se401_read_req(struct gspca_dev *gspca_dev, u16 req, int silent) +{ + int err; + + if (gspca_dev->usb_err < 0) + return; + + if (USB_BUF_SZ < READ_REQ_SIZE) { + err("USB_BUF_SZ too small!!"); + gspca_dev->usb_err = -ENOBUFS; + return; + } + + err = usb_control_msg(gspca_dev->dev, + usb_rcvctrlpipe(gspca_dev->dev, 0), req, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, 0, gspca_dev->usb_buf, READ_REQ_SIZE, 1000); + if (err < 0) { + if (!silent) + err("read req failed req %#04x error %d", req, err); + gspca_dev->usb_err = err; + } +} + +static void se401_set_feature(struct gspca_dev *gspca_dev, + u16 selector, u16 param) +{ + int err; + + if (gspca_dev->usb_err < 0) + return; + + err = usb_control_msg(gspca_dev->dev, + usb_sndctrlpipe(gspca_dev->dev, 0), + SE401_REQ_SET_EXT_FEATURE, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + param, selector, NULL, 0, 1000); + if (err < 0) { + err("set feature failed sel %#04x param %#04x error %d", + selector, param, err); + gspca_dev->usb_err = err; + } +} + +static int se401_get_feature(struct gspca_dev *gspca_dev, u16 selector) +{ + int err; + + if (gspca_dev->usb_err < 0) + return gspca_dev->usb_err; + + if (USB_BUF_SZ < 2) { + err("USB_BUF_SZ too small!!"); + gspca_dev->usb_err = -ENOBUFS; + return gspca_dev->usb_err; + } + + err = usb_control_msg(gspca_dev->dev, + usb_rcvctrlpipe(gspca_dev->dev, 0), + SE401_REQ_GET_EXT_FEATURE, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, selector, gspca_dev->usb_buf, 2, 1000); + if (err < 0) { + err("get feature failed sel %#04x error %d", selector, err); + gspca_dev->usb_err = err; + return err; + } + return gspca_dev->usb_buf[0] | (gspca_dev->usb_buf[1] << 8); +} + +static void setbrightness(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + + if (gspca_dev->ctrl_dis & (1 << BRIGHTNESS)) + return; + + /* HDG: this does not seem to do anything on my cam */ + se401_write_req(gspca_dev, SE401_REQ_SET_BRT, + sd->ctrls[BRIGHTNESS].val, 0); +} + +static void setgain(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + u16 gain = 63 - sd->ctrls[GAIN].val; + + /* red color gain */ + se401_set_feature(gspca_dev, HV7131_REG_ARCG, gain); + /* green color gain */ + se401_set_feature(gspca_dev, HV7131_REG_AGCG, gain); + /* blue color gain */ + se401_set_feature(gspca_dev, HV7131_REG_ABCG, gain); +} + +static void setexposure(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + int integration = sd->ctrls[EXPOSURE].val << 6; + u8 expose_h, expose_m, expose_l; + + /* Do this before the set_feature calls, for proper timing wrt + the interrupt driven pkt_scan. Note we may still race but that + is not a big issue, the expo change state machine is merely for + avoiding underexposed frames getting send out, if one sneaks + through so be it */ + sd->expo_change_state = EXPO_CHANGED; + + if (sd->ctrls[FREQ].val == V4L2_CID_POWER_LINE_FREQUENCY_50HZ) + integration = integration - integration % 106667; + if (sd->ctrls[FREQ].val == V4L2_CID_POWER_LINE_FREQUENCY_60HZ) + integration = integration - integration % 88889; + + expose_h = (integration >> 16); + expose_m = (integration >> 8); + expose_l = integration; + + /* integration time low */ + se401_set_feature(gspca_dev, HV7131_REG_TITL, expose_l); + /* integration time mid */ + se401_set_feature(gspca_dev, HV7131_REG_TITM, expose_m); + /* integration time high */ + se401_set_feature(gspca_dev, HV7131_REG_TITU, expose_h); +} + +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; + u8 *cd = gspca_dev->usb_buf; + int i, j, n; + int widths[MAX_MODES], heights[MAX_MODES]; + + /* Read the camera descriptor */ + se401_read_req(gspca_dev, SE401_REQ_GET_CAMERA_DESCRIPTOR, 1); + if (gspca_dev->usb_err) { + /* Sometimes after being idle for a while the se401 won't + respond and needs a good kicking */ + usb_reset_device(gspca_dev->dev); + gspca_dev->usb_err = 0; + se401_read_req(gspca_dev, SE401_REQ_GET_CAMERA_DESCRIPTOR, 0); + } + + /* Some cameras start with their LED on */ + se401_write_req(gspca_dev, SE401_REQ_LED_CONTROL, 0, 0); + if (gspca_dev->usb_err) + return gspca_dev->usb_err; + + if (cd[1] != 0x41) { + err("Wrong descriptor type"); + return -ENODEV; + } + + if (!(cd[2] & SE401_FORMAT_BAYER)) { + err("Bayer format not supported!"); + return -ENODEV; + } + + if (cd[3]) + info("ExtraFeatures: %d", cd[3]); + + n = cd[4] | (cd[5] << 8); + if (n > MAX_MODES) { + err("Too many frame sizes"); + return -ENODEV; + } + + for (i = 0; i < n ; i++) { + widths[i] = cd[6 + i * 4 + 0] | (cd[6 + i * 4 + 1] << 8); + heights[i] = cd[6 + i * 4 + 2] | (cd[6 + i * 4 + 3] << 8); + } + + for (i = 0; i < n ; i++) { + sd->fmts[i].width = widths[i]; + sd->fmts[i].height = heights[i]; + sd->fmts[i].field = V4L2_FIELD_NONE; + sd->fmts[i].colorspace = V4L2_COLORSPACE_SRGB; + sd->fmts[i].priv = 1; + + /* janggu compression only works for 1/4th or 1/16th res */ + for (j = 0; j < n; j++) { + if (widths[j] / 2 == widths[i] && + heights[j] / 2 == heights[i]) { + sd->fmts[i].priv = 2; + break; + } + } + /* 1/16th if available too is better then 1/4th, because + we then use a larger area of the sensor */ + for (j = 0; j < n; j++) { + if (widths[j] / 4 == widths[i] && + heights[j] / 4 == heights[i]) { + sd->fmts[i].priv = 4; + break; + } + } + + if (sd->fmts[i].priv == 1) { + /* Not a 1/4th or 1/16th res, use bayer */ + sd->fmts[i].pixelformat = V4L2_PIX_FMT_SBGGR8; + sd->fmts[i].bytesperline = widths[i]; + sd->fmts[i].sizeimage = widths[i] * heights[i]; + info("Frame size: %dx%d bayer", widths[i], heights[i]); + } else { + /* Found a match use janggu compression */ + sd->fmts[i].pixelformat = V4L2_PIX_FMT_SE401; + sd->fmts[i].bytesperline = 0; + sd->fmts[i].sizeimage = widths[i] * heights[i] * 3; + info("Frame size: %dx%d 1/%dth janggu", + widths[i], heights[i], + sd->fmts[i].priv * sd->fmts[i].priv); + } + } + + cam->cam_mode = sd->fmts; + cam->nmodes = n; + cam->bulk = 1; + cam->bulk_size = BULK_SIZE; + cam->bulk_nurbs = 4; + cam->ctrls = sd->ctrls; + gspca_dev->nbalt = 1; /* Ignore the bogus isoc alt settings */ + sd->resetlevel = 0x2d; /* Set initial resetlevel */ + + /* See if the camera supports brightness */ + se401_read_req(gspca_dev, SE401_REQ_GET_BRT, 1); + if (gspca_dev->usb_err) { + gspca_dev->ctrl_dis = (1 << BRIGHTNESS); + gspca_dev->usb_err = 0; + } + + return 0; +} + +/* this function is called at probe and resume time */ +static int sd_init(struct gspca_dev *gspca_dev) +{ + return 0; +} + +/* -- start the camera -- */ +static int sd_start(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *)gspca_dev; + int mult = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv; + int mode = 0; + + se401_write_req(gspca_dev, SE401_REQ_CAMERA_POWER, 1, 1); + if (gspca_dev->usb_err) { + /* Sometimes after being idle for a while the se401 won't + respond and needs a good kicking */ + usb_reset_device(gspca_dev->dev); + gspca_dev->usb_err = 0; + se401_write_req(gspca_dev, SE401_REQ_CAMERA_POWER, 1, 0); + } + se401_write_req(gspca_dev, SE401_REQ_LED_CONTROL, 1, 0); + + se401_set_feature(gspca_dev, HV7131_REG_MODE_B, 0x05); + + /* set size + mode */ + se401_write_req(gspca_dev, SE401_REQ_SET_WIDTH, + gspca_dev->width * mult, 0); + se401_write_req(gspca_dev, SE401_REQ_SET_HEIGHT, + gspca_dev->height * mult, 0); + /* + * HDG: disabled this as it does not seem to do anything + * se401_write_req(gspca_dev, SE401_REQ_SET_OUTPUT_MODE, + * SE401_FORMAT_BAYER, 0); + */ + + switch (mult) { + case 1: /* Raw bayer */ + mode = 0x03; break; + case 2: /* 1/4th janggu */ + mode = SE401_QUANT_FACT << 4; break; + case 4: /* 1/16th janggu */ + mode = (SE401_QUANT_FACT << 4) | 0x02; break; + } + se401_set_feature(gspca_dev, SE401_OPERATINGMODE, mode); + + setbrightness(gspca_dev); + setgain(gspca_dev); + setexposure(gspca_dev); + se401_set_feature(gspca_dev, HV7131_REG_ARLV, sd->resetlevel); + + sd->packet_read = 0; + sd->pixels_read = 0; + sd->restart_stream = 0; + sd->resetlevel_frame_count = 0; + sd->resetlevel_adjust_dir = 0; + sd->expo_change_state = EXPO_NO_CHANGE; + + se401_write_req(gspca_dev, SE401_REQ_START_CONTINUOUS_CAPTURE, 0, 0); + + return gspca_dev->usb_err; +} + +static void sd_stopN(struct gspca_dev *gspca_dev) +{ + se401_write_req(gspca_dev, SE401_REQ_STOP_CONTINUOUS_CAPTURE, 0, 0); + se401_write_req(gspca_dev, SE401_REQ_LED_CONTROL, 0, 0); + se401_write_req(gspca_dev, SE401_REQ_CAMERA_POWER, 0, 0); +} + +static void sd_dq_callback(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *)gspca_dev; + unsigned int ahrc, alrc; + int oldreset, adjust_dir; + + /* Restart the stream if requested do so by pkt_scan */ + if (sd->restart_stream) { + sd_stopN(gspca_dev); + sd_start(gspca_dev); + sd->restart_stream = 0; + } + + /* Automatically adjust sensor reset level + Hyundai have some really nice docs about this and other sensor + related stuff on their homepage: www.hei.co.kr */ + sd->resetlevel_frame_count++; + if (sd->resetlevel_frame_count < 20) + return; + + /* For some reason this normally read-only register doesn't get reset + to zero after reading them just once... */ + se401_get_feature(gspca_dev, HV7131_REG_HIREFNOH); + se401_get_feature(gspca_dev, HV7131_REG_HIREFNOL); + se401_get_feature(gspca_dev, HV7131_REG_LOREFNOH); + se401_get_feature(gspca_dev, HV7131_REG_LOREFNOL); + ahrc = 256*se401_get_feature(gspca_dev, HV7131_REG_HIREFNOH) + + se401_get_feature(gspca_dev, HV7131_REG_HIREFNOL); + alrc = 256*se401_get_feature(gspca_dev, HV7131_REG_LOREFNOH) + + se401_get_feature(gspca_dev, HV7131_REG_LOREFNOL); + + /* Not an exact science, but it seems to work pretty well... */ + oldreset = sd->resetlevel; + if (alrc > 10) { + while (alrc >= 10 && sd->resetlevel < 63) { + sd->resetlevel++; + alrc /= 2; + } + } else if (ahrc > 20) { + while (ahrc >= 20 && sd->resetlevel > 0) { + sd->resetlevel--; + ahrc /= 2; + } + } + /* Detect ping-pong-ing and halve adjustment to avoid overshoot */ + if (sd->resetlevel > oldreset) + adjust_dir = 1; + else + adjust_dir = -1; + if (sd->resetlevel_adjust_dir && + sd->resetlevel_adjust_dir != adjust_dir) + sd->resetlevel = oldreset + (sd->resetlevel - oldreset) / 2; + + if (sd->resetlevel != oldreset) { + sd->resetlevel_adjust_dir = adjust_dir; + se401_set_feature(gspca_dev, HV7131_REG_ARLV, sd->resetlevel); + } + + sd->resetlevel_frame_count = 0; +} + +static void sd_complete_frame(struct gspca_dev *gspca_dev, u8 *data, int len) +{ + struct sd *sd = (struct sd *)gspca_dev; + + switch (sd->expo_change_state) { + case EXPO_CHANGED: + /* The exposure was changed while this frame + was being send, so this frame is ok */ + sd->expo_change_state = EXPO_DROP_FRAME; + break; + case EXPO_DROP_FRAME: + /* The exposure was changed while this frame + was being captured, drop it! */ + gspca_dev->last_packet_type = DISCARD_PACKET; + sd->expo_change_state = EXPO_NO_CHANGE; + break; + case EXPO_NO_CHANGE: + break; + } + gspca_frame_add(gspca_dev, LAST_PACKET, data, len); +} + +static void sd_pkt_scan_janggu(struct gspca_dev *gspca_dev, u8 *data, int len) +{ + struct sd *sd = (struct sd *)gspca_dev; + int imagesize = gspca_dev->width * gspca_dev->height; + int i, plen, bits, pixels, info, count; + + if (sd->restart_stream) + return; + + /* Sometimes a 1024 bytes garbage bulk packet is send between frames */ + if (gspca_dev->last_packet_type == LAST_PACKET && len == 1024) { + gspca_dev->last_packet_type = DISCARD_PACKET; + return; + } + + i = 0; + while (i < len) { + /* Read header if not already be present from prev bulk pkt */ + if (sd->packet_read < 4) { + count = 4 - sd->packet_read; + if (count > len - i) + count = len - i; + memcpy(&sd->packet[sd->packet_read], &data[i], count); + sd->packet_read += count; + i += count; + if (sd->packet_read < 4) + break; + } + bits = sd->packet[3] + (sd->packet[2] << 8); + pixels = sd->packet[1] + ((sd->packet[0] & 0x3f) << 8); + info = (sd->packet[0] & 0xc0) >> 6; + plen = ((bits + 47) >> 4) << 1; + /* Sanity checks */ + if (plen > 1024) { + err("invalid packet len %d restarting stream", plen); + goto error; + } + if (info == 3) { + err("unknown frame info value restarting stream"); + goto error; + } + + /* Read (remainder of) packet contents */ + count = plen - sd->packet_read; + if (count > len - i) + count = len - i; + memcpy(&sd->packet[sd->packet_read], &data[i], count); + sd->packet_read += count; + i += count; + if (sd->packet_read < plen) + break; + + sd->pixels_read += pixels; + sd->packet_read = 0; + + switch (info) { + case 0: /* Frame data */ + gspca_frame_add(gspca_dev, INTER_PACKET, sd->packet, + plen); + break; + case 1: /* EOF */ + if (sd->pixels_read != imagesize) { + err("frame size %d expected %d", + sd->pixels_read, imagesize); + goto error; + } + sd_complete_frame(gspca_dev, sd->packet, plen); + return; /* Discard the rest of the bulk packet !! */ + case 2: /* SOF */ + gspca_frame_add(gspca_dev, FIRST_PACKET, sd->packet, + plen); + sd->pixels_read = pixels; + break; + } + } + return; + +error: + sd->restart_stream = 1; + /* Give userspace a 0 bytes frame, so our dq callback gets + called and it can restart the stream */ + gspca_frame_add(gspca_dev, FIRST_PACKET, NULL, 0); + gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0); +} + +static void sd_pkt_scan_bayer(struct gspca_dev *gspca_dev, u8 *data, int len) +{ + struct cam *cam = &gspca_dev->cam; + int imagesize = cam->cam_mode[gspca_dev->curr_mode].sizeimage; + + if (gspca_dev->image_len == 0) { + gspca_frame_add(gspca_dev, FIRST_PACKET, data, len); + return; + } + + if (gspca_dev->image_len + len >= imagesize) { + sd_complete_frame(gspca_dev, data, len); + return; + } + + gspca_frame_add(gspca_dev, INTER_PACKET, data, len); +} + +static void sd_pkt_scan(struct gspca_dev *gspca_dev, u8 *data, int len) +{ + int mult = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv; + + if (len == 0) + return; + + if (mult == 1) /* mult == 1 means raw bayer */ + sd_pkt_scan_bayer(gspca_dev, data, len); + else + sd_pkt_scan_janggu(gspca_dev, data, len); +} + +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 V4L2_CID_POWER_LINE_FREQUENCY_DISABLED: + strcpy((char *) menu->name, "NoFliker"); + return 0; + case V4L2_CID_POWER_LINE_FREQUENCY_50HZ: + strcpy((char *) menu->name, "50 Hz"); + return 0; + case V4L2_CID_POWER_LINE_FREQUENCY_60HZ: + strcpy((char *) menu->name, "60 Hz"); + return 0; + } + break; + } + return -EINVAL; +} + +#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE) +static int sd_int_pkt_scan(struct gspca_dev *gspca_dev, u8 *data, int len) +{ + struct sd *sd = (struct sd *)gspca_dev; + u8 state; + + if (len != 2) + return -EINVAL; + + switch (data[0]) { + case 0: + case 1: + state = data[0]; + break; + default: + return -EINVAL; + } + if (sd->button_state != state) { + input_report_key(gspca_dev->input_dev, KEY_CAMERA, state); + input_sync(gspca_dev->input_dev); + sd->button_state = state; + } + + return 0; +} +#endif + +/* 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, + .dq_callback = sd_dq_callback, + .pkt_scan = sd_pkt_scan, + .querymenu = sd_querymenu, +#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE) + .int_pkt_scan = sd_int_pkt_scan, +#endif +}; + +/* -- module initialisation -- */ +static const struct usb_device_id device_table[] = { + {USB_DEVICE(0x03e8, 0x0004)}, /* Endpoints/Aox SE401 */ + {USB_DEVICE(0x0471, 0x030b)}, /* Philips PCVC665K */ + {USB_DEVICE(0x047d, 0x5001)}, /* Kensington 67014 */ + {USB_DEVICE(0x047d, 0x5002)}, /* Kensington 6701(5/7) */ + {USB_DEVICE(0x047d, 0x5003)}, /* Kensington 67016 */ + {} +}; +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 int sd_pre_reset(struct usb_interface *intf) +{ + return 0; +} + +static int sd_post_reset(struct usb_interface *intf) +{ + return 0; +} + +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 + .pre_reset = sd_pre_reset, + .post_reset = sd_post_reset, +}; + +/* -- module insert / remove -- */ +static int __init sd_mod_init(void) +{ + return usb_register(&sd_driver); +} +static void __exit sd_mod_exit(void) +{ + usb_deregister(&sd_driver); +} + +module_init(sd_mod_init); +module_exit(sd_mod_exit); |