| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Hans de Goede | 1668 | 95.81% | 5 | 38.46% |
| Joe Perches | 65 | 3.73% | 3 | 23.08% |
| Jean-François Moine | 4 | 0.23% | 2 | 15.38% |
| Greg Kroah-Hartman | 2 | 0.11% | 1 | 7.69% |
| Sakari Ailus | 1 | 0.06% | 1 | 7.69% |
| Jonathan McCrohan | 1 | 0.06% | 1 | 7.69% |
| Total | 1741 | 13 |
/* * STV0680 USB Camera Driver * * Copyright (C) 2009 Hans de Goede <hdegoede@redhat.com> * * This module is adapted from the in kernel v4l1 stv680 driver: * * STV0680 USB Camera Driver, by Kevin Sisson (kjsisson@bellsouth.net) * * Thanks to STMicroelectronics for information on the usb commands, and * to Steve Miller at STM for his help and encouragement while I was * writing this driver. * * 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. * */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #define MODULE_NAME "stv0680" #include "gspca.h" MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>"); MODULE_DESCRIPTION("STV0680 USB Camera Driver"); MODULE_LICENSE("GPL"); /* specific webcam descriptor */ struct sd { struct gspca_dev gspca_dev; /* !! must be the first item */ struct v4l2_pix_format mode; u8 orig_mode; u8 video_mode; u8 current_mode; }; static int stv_sndctrl(struct gspca_dev *gspca_dev, int set, u8 req, u16 val, int size) { int ret = -1; u8 req_type = 0; unsigned int pipe = 0; switch (set) { case 0: /* 0xc1 */ req_type = USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT; pipe = usb_rcvctrlpipe(gspca_dev->dev, 0); break; case 1: /* 0x41 */ req_type = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT; pipe = usb_sndctrlpipe(gspca_dev->dev, 0); break; case 2: /* 0x80 */ req_type = USB_DIR_IN | USB_RECIP_DEVICE; pipe = usb_rcvctrlpipe(gspca_dev->dev, 0); break; case 3: /* 0x40 */ req_type = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE; pipe = usb_sndctrlpipe(gspca_dev->dev, 0); break; } ret = usb_control_msg(gspca_dev->dev, pipe, req, req_type, val, 0, gspca_dev->usb_buf, size, 500); if ((ret < 0) && (req != 0x0a)) pr_err("usb_control_msg error %i, request = 0x%x, error = %i\n", set, req, ret); return ret; } static int stv0680_handle_error(struct gspca_dev *gspca_dev, int ret) { stv_sndctrl(gspca_dev, 0, 0x80, 0, 0x02); /* Get Last Error */ gspca_err(gspca_dev, "last error: %i, command = 0x%x\n", gspca_dev->usb_buf[0], gspca_dev->usb_buf[1]); return ret; } static int stv0680_get_video_mode(struct gspca_dev *gspca_dev) { /* Note not sure if this init of usb_buf is really necessary */ memset(gspca_dev->usb_buf, 0, 8); gspca_dev->usb_buf[0] = 0x0f; if (stv_sndctrl(gspca_dev, 0, 0x87, 0, 0x08) != 0x08) { gspca_err(gspca_dev, "Get_Camera_Mode failed\n"); return stv0680_handle_error(gspca_dev, -EIO); } return gspca_dev->usb_buf[0]; /* 01 = VGA, 03 = QVGA, 00 = CIF */ } static int stv0680_set_video_mode(struct gspca_dev *gspca_dev, u8 mode) { struct sd *sd = (struct sd *) gspca_dev; if (sd->current_mode == mode) return 0; memset(gspca_dev->usb_buf, 0, 8); gspca_dev->usb_buf[0] = mode; if (stv_sndctrl(gspca_dev, 3, 0x07, 0x0100, 0x08) != 0x08) { gspca_err(gspca_dev, "Set_Camera_Mode failed\n"); return stv0680_handle_error(gspca_dev, -EIO); } /* Verify we got what we've asked for */ if (stv0680_get_video_mode(gspca_dev) != mode) { gspca_err(gspca_dev, "Error setting camera video mode!\n"); return -EIO; } sd->current_mode = mode; return 0; } /* this function is called at probe time */ static int sd_config(struct gspca_dev *gspca_dev, const struct usb_device_id *id) { int ret; struct sd *sd = (struct sd *) gspca_dev; struct cam *cam = &gspca_dev->cam; /* Give the camera some time to settle, otherwise initialization will fail on hotplug, and yes it really needs a full second. */ msleep(1000); /* ping camera to be sure STV0680 is present */ if (stv_sndctrl(gspca_dev, 0, 0x88, 0x5678, 0x02) != 0x02 || gspca_dev->usb_buf[0] != 0x56 || gspca_dev->usb_buf[1] != 0x78) { gspca_err(gspca_dev, "STV(e): camera ping failed!!\n"); return stv0680_handle_error(gspca_dev, -ENODEV); } /* get camera descriptor */ if (stv_sndctrl(gspca_dev, 2, 0x06, 0x0200, 0x09) != 0x09) return stv0680_handle_error(gspca_dev, -ENODEV); if (stv_sndctrl(gspca_dev, 2, 0x06, 0x0200, 0x22) != 0x22 || gspca_dev->usb_buf[7] != 0xa0 || gspca_dev->usb_buf[8] != 0x23) { gspca_err(gspca_dev, "Could not get descriptor 0200\n"); return stv0680_handle_error(gspca_dev, -ENODEV); } if (stv_sndctrl(gspca_dev, 0, 0x8a, 0, 0x02) != 0x02) return stv0680_handle_error(gspca_dev, -ENODEV); if (stv_sndctrl(gspca_dev, 0, 0x8b, 0, 0x24) != 0x24) return stv0680_handle_error(gspca_dev, -ENODEV); if (stv_sndctrl(gspca_dev, 0, 0x85, 0, 0x10) != 0x10) return stv0680_handle_error(gspca_dev, -ENODEV); if (!(gspca_dev->usb_buf[7] & 0x09)) { gspca_err(gspca_dev, "Camera supports neither CIF nor QVGA mode\n"); return -ENODEV; } if (gspca_dev->usb_buf[7] & 0x01) gspca_dbg(gspca_dev, D_PROBE, "Camera supports CIF mode\n"); if (gspca_dev->usb_buf[7] & 0x02) gspca_dbg(gspca_dev, D_PROBE, "Camera supports VGA mode\n"); if (gspca_dev->usb_buf[7] & 0x04) gspca_dbg(gspca_dev, D_PROBE, "Camera supports QCIF mode\n"); if (gspca_dev->usb_buf[7] & 0x08) gspca_dbg(gspca_dev, D_PROBE, "Camera supports QVGA mode\n"); if (gspca_dev->usb_buf[7] & 0x01) sd->video_mode = 0x00; /* CIF */ else sd->video_mode = 0x03; /* QVGA */ /* FW rev, ASIC rev, sensor ID */ gspca_dbg(gspca_dev, D_PROBE, "Firmware rev is %i.%i\n", gspca_dev->usb_buf[0], gspca_dev->usb_buf[1]); gspca_dbg(gspca_dev, D_PROBE, "ASIC rev is %i.%i", gspca_dev->usb_buf[2], gspca_dev->usb_buf[3]); gspca_dbg(gspca_dev, D_PROBE, "Sensor ID is %i", (gspca_dev->usb_buf[4]*16) + (gspca_dev->usb_buf[5]>>4)); ret = stv0680_get_video_mode(gspca_dev); if (ret < 0) return ret; sd->current_mode = sd->orig_mode = ret; ret = stv0680_set_video_mode(gspca_dev, sd->video_mode); if (ret < 0) return ret; /* Get mode details */ if (stv_sndctrl(gspca_dev, 0, 0x8f, 0, 0x10) != 0x10) return stv0680_handle_error(gspca_dev, -EIO); cam->bulk = 1; cam->bulk_nurbs = 1; /* The cam cannot handle more */ cam->bulk_size = (gspca_dev->usb_buf[0] << 24) | (gspca_dev->usb_buf[1] << 16) | (gspca_dev->usb_buf[2] << 8) | (gspca_dev->usb_buf[3]); sd->mode.width = (gspca_dev->usb_buf[4] << 8) | (gspca_dev->usb_buf[5]); /* 322, 356, 644 */ sd->mode.height = (gspca_dev->usb_buf[6] << 8) | (gspca_dev->usb_buf[7]); /* 242, 292, 484 */ sd->mode.pixelformat = V4L2_PIX_FMT_STV0680; sd->mode.field = V4L2_FIELD_NONE; sd->mode.bytesperline = sd->mode.width; sd->mode.sizeimage = cam->bulk_size; sd->mode.colorspace = V4L2_COLORSPACE_SRGB; /* origGain = gspca_dev->usb_buf[12]; */ cam->cam_mode = &sd->mode; cam->nmodes = 1; ret = stv0680_set_video_mode(gspca_dev, sd->orig_mode); if (ret < 0) return ret; if (stv_sndctrl(gspca_dev, 2, 0x06, 0x0100, 0x12) != 0x12 || gspca_dev->usb_buf[8] != 0x53 || gspca_dev->usb_buf[9] != 0x05) { pr_err("Could not get descriptor 0100\n"); return stv0680_handle_error(gspca_dev, -EIO); } 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) { int ret; struct sd *sd = (struct sd *) gspca_dev; ret = stv0680_set_video_mode(gspca_dev, sd->video_mode); if (ret < 0) return ret; if (stv_sndctrl(gspca_dev, 0, 0x85, 0, 0x10) != 0x10) return stv0680_handle_error(gspca_dev, -EIO); /* Start stream at: 0x0000 = CIF (352x288) 0x0100 = VGA (640x480) 0x0300 = QVGA (320x240) */ if (stv_sndctrl(gspca_dev, 1, 0x09, sd->video_mode << 8, 0x0) != 0x0) return stv0680_handle_error(gspca_dev, -EIO); return 0; } static void sd_stopN(struct gspca_dev *gspca_dev) { /* This is a high priority command; it stops all lower order cmds */ if (stv_sndctrl(gspca_dev, 1, 0x04, 0x0000, 0x0) != 0x0) stv0680_handle_error(gspca_dev, -EIO); } static void sd_stop0(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; if (!sd->gspca_dev.present) return; stv0680_set_video_mode(gspca_dev, sd->orig_mode); } static void sd_pkt_scan(struct gspca_dev *gspca_dev, u8 *data, int len) { struct sd *sd = (struct sd *) gspca_dev; /* Every now and then the camera sends a 16 byte packet, no idea what it contains, but it is not image data, when this happens the frame received before this packet is corrupt, so discard it. */ if (len != sd->mode.sizeimage) { gspca_dev->last_packet_type = DISCARD_PACKET; return; } /* Finish the previous frame, we do this upon reception of the next packet, even though it is already complete so that the strange 16 byte packets send after a corrupt frame can discard it. */ gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0); /* Store the just received frame */ gspca_frame_add(gspca_dev, FIRST_PACKET, data, len); } /* sub-driver description */ static const struct sd_desc sd_desc = { .name = MODULE_NAME, .config = sd_config, .init = sd_init, .start = sd_start, .stopN = sd_stopN, .stop0 = sd_stop0, .pkt_scan = sd_pkt_scan, }; /* -- module initialisation -- */ static const struct usb_device_id device_table[] = { {USB_DEVICE(0x0553, 0x0202)}, {USB_DEVICE(0x041e, 0x4007)}, {} }; 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, .reset_resume = gspca_resume, #endif }; module_usb_driver(sd_driver);
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