diff options
Diffstat (limited to 'drivers/media/video/gspca/spca1528.c')
| -rw-r--r-- | drivers/media/video/gspca/spca1528.c | 444 |
1 files changed, 0 insertions, 444 deletions
diff --git a/drivers/media/video/gspca/spca1528.c b/drivers/media/video/gspca/spca1528.c deleted file mode 100644 index 14d6352..0000000 --- a/drivers/media/video/gspca/spca1528.c +++ /dev/null @@ -1,444 +0,0 @@ -/* - * spca1528 subdriver - * - * Copyright (C) 2010-2011 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 pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#define MODULE_NAME "spca1528" - -#include "gspca.h" -#include "jpeg.h" - -MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>"); -MODULE_DESCRIPTION("SPCA1528 USB Camera Driver"); -MODULE_LICENSE("GPL"); - -/* specific webcam descriptor */ -struct sd { - struct gspca_dev gspca_dev; /* !! must be the first item */ - - u8 pkt_seq; - - u8 jpeg_hdr[JPEG_HDR_SZ]; -}; - -static const struct v4l2_pix_format vga_mode[] = { -/* (does not work correctly) - {176, 144, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE, - .bytesperline = 176, - .sizeimage = 176 * 144 * 5 / 8 + 590, - .colorspace = V4L2_COLORSPACE_JPEG, - .priv = 3}, -*/ - {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE, - .bytesperline = 320, - .sizeimage = 320 * 240 * 4 / 8 + 590, - .colorspace = V4L2_COLORSPACE_JPEG, - .priv = 2}, - {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE, - .bytesperline = 640, - .sizeimage = 640 * 480 * 3 / 8 + 590, - .colorspace = V4L2_COLORSPACE_JPEG, - .priv = 1}, -}; - -/* read <len> bytes to gspca usb_buf */ -static void reg_r(struct gspca_dev *gspca_dev, - u8 req, - u16 index, - int len) -{ -#if USB_BUF_SZ < 64 -#error "USB buffer too small" -#endif - struct usb_device *dev = gspca_dev->dev; - int ret; - - if (gspca_dev->usb_err < 0) - return; - ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), - req, - USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - 0x0000, /* value */ - index, - gspca_dev->usb_buf, len, - 500); - PDEBUG(D_USBI, "GET %02x 0000 %04x %02x", req, index, - gspca_dev->usb_buf[0]); - if (ret < 0) { - pr_err("reg_r err %d\n", ret); - gspca_dev->usb_err = ret; - } -} - -static void reg_w(struct gspca_dev *gspca_dev, - u8 req, - u16 value, - u16 index) -{ - struct usb_device *dev = gspca_dev->dev; - int ret; - - if (gspca_dev->usb_err < 0) - return; - PDEBUG(D_USBO, "SET %02x %04x %04x", req, value, index); - ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), - req, - USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - value, index, - NULL, 0, 500); - if (ret < 0) { - pr_err("reg_w err %d\n", ret); - gspca_dev->usb_err = ret; - } -} - -static void reg_wb(struct gspca_dev *gspca_dev, - u8 req, - u16 value, - u16 index, - u8 byte) -{ - struct usb_device *dev = gspca_dev->dev; - int ret; - - if (gspca_dev->usb_err < 0) - return; - PDEBUG(D_USBO, "SET %02x %04x %04x %02x", req, value, index, byte); - gspca_dev->usb_buf[0] = byte; - ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), - req, - USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - value, index, - gspca_dev->usb_buf, 1, 500); - if (ret < 0) { - pr_err("reg_w err %d\n", ret); - gspca_dev->usb_err = ret; - } -} - -static void wait_status_0(struct gspca_dev *gspca_dev) -{ - int i, w; - - i = 16; - w = 0; - do { - reg_r(gspca_dev, 0x21, 0x0000, 1); - if (gspca_dev->usb_buf[0] == 0) - return; - w += 15; - msleep(w); - } while (--i > 0); - PDEBUG(D_ERR, "wait_status_0 timeout"); - gspca_dev->usb_err = -ETIME; -} - -static void wait_status_1(struct gspca_dev *gspca_dev) -{ - int i; - - i = 10; - do { - reg_r(gspca_dev, 0x21, 0x0001, 1); - msleep(10); - if (gspca_dev->usb_buf[0] == 1) { - reg_wb(gspca_dev, 0x21, 0x0000, 0x0001, 0x00); - reg_r(gspca_dev, 0x21, 0x0001, 1); - return; - } - } while (--i > 0); - PDEBUG(D_ERR, "wait_status_1 timeout"); - gspca_dev->usb_err = -ETIME; -} - -static void setbrightness(struct gspca_dev *gspca_dev, s32 val) -{ - reg_wb(gspca_dev, 0xc0, 0x0000, 0x00c0, val); -} - -static void setcontrast(struct gspca_dev *gspca_dev, s32 val) -{ - reg_wb(gspca_dev, 0xc1, 0x0000, 0x00c1, val); -} - -static void sethue(struct gspca_dev *gspca_dev, s32 val) -{ - reg_wb(gspca_dev, 0xc2, 0x0000, 0x0000, val); -} - -static void setcolor(struct gspca_dev *gspca_dev, s32 val) -{ - reg_wb(gspca_dev, 0xc3, 0x0000, 0x00c3, val); -} - -static void setsharpness(struct gspca_dev *gspca_dev, s32 val) -{ - reg_wb(gspca_dev, 0xc4, 0x0000, 0x00c4, val); -} - -/* this function is called at probe time */ -static int sd_config(struct gspca_dev *gspca_dev, - const struct usb_device_id *id) -{ - gspca_dev->cam.cam_mode = vga_mode; - gspca_dev->cam.nmodes = ARRAY_SIZE(vga_mode); - gspca_dev->cam.npkt = 128; /* number of packets per ISOC message */ - /*fixme: 256 in ms-win traces*/ - - return 0; -} - -/* this function is called at probe and resume time */ -static int sd_init(struct gspca_dev *gspca_dev) -{ - reg_w(gspca_dev, 0x00, 0x0001, 0x2067); - reg_w(gspca_dev, 0x00, 0x00d0, 0x206b); - reg_w(gspca_dev, 0x00, 0x0000, 0x206c); - reg_w(gspca_dev, 0x00, 0x0001, 0x2069); - msleep(8); - reg_w(gspca_dev, 0x00, 0x00c0, 0x206b); - reg_w(gspca_dev, 0x00, 0x0000, 0x206c); - reg_w(gspca_dev, 0x00, 0x0001, 0x2069); - - reg_r(gspca_dev, 0x20, 0x0000, 1); - reg_r(gspca_dev, 0x20, 0x0000, 5); - reg_r(gspca_dev, 0x23, 0x0000, 64); - PDEBUG(D_PROBE, "%s%s", &gspca_dev->usb_buf[0x1c], - &gspca_dev->usb_buf[0x30]); - reg_r(gspca_dev, 0x23, 0x0001, 64); - return gspca_dev->usb_err; -} - -/* function called at start time before URB creation */ -static int sd_isoc_init(struct gspca_dev *gspca_dev) -{ - u8 mode; - - reg_r(gspca_dev, 0x00, 0x2520, 1); - wait_status_0(gspca_dev); - reg_w(gspca_dev, 0xc5, 0x0003, 0x0000); - wait_status_1(gspca_dev); - - wait_status_0(gspca_dev); - mode = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv; - reg_wb(gspca_dev, 0x25, 0x0000, 0x0004, mode); - reg_r(gspca_dev, 0x25, 0x0004, 1); - reg_wb(gspca_dev, 0x27, 0x0000, 0x0000, 0x06); /* 420 */ - reg_r(gspca_dev, 0x27, 0x0000, 1); - -/* not useful.. - gspca_dev->alt = 4; * use alternate setting 3 */ - - return gspca_dev->usb_err; -} - -/* -- start the camera -- */ -static int sd_start(struct gspca_dev *gspca_dev) -{ - struct sd *sd = (struct sd *) gspca_dev; - - /* initialize the JPEG header */ - jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width, - 0x22); /* JPEG 411 */ - - /* the JPEG quality shall be 85% */ - jpeg_set_qual(sd->jpeg_hdr, 85); - - reg_r(gspca_dev, 0x00, 0x2520, 1); - msleep(8); - - /* start the capture */ - wait_status_0(gspca_dev); - reg_w(gspca_dev, 0x31, 0x0000, 0x0004); /* start request */ - wait_status_1(gspca_dev); - wait_status_0(gspca_dev); - msleep(200); - - sd->pkt_seq = 0; - return gspca_dev->usb_err; -} - -static void sd_stopN(struct gspca_dev *gspca_dev) -{ - /* stop the capture */ - wait_status_0(gspca_dev); - reg_w(gspca_dev, 0x31, 0x0000, 0x0000); /* stop request */ - wait_status_1(gspca_dev); - wait_status_0(gspca_dev); -} - -/* move a packet adding 0x00 after 0xff */ -static void add_packet(struct gspca_dev *gspca_dev, - u8 *data, - int len) -{ - int i; - - i = 0; - do { - if (data[i] == 0xff) { - gspca_frame_add(gspca_dev, INTER_PACKET, - data, i + 1); - len -= i; - data += i; - *data = 0x00; - i = 0; - } - } while (++i < len); - gspca_frame_add(gspca_dev, INTER_PACKET, data, len); -} - -static void sd_pkt_scan(struct gspca_dev *gspca_dev, - u8 *data, /* isoc packet */ - int len) /* iso packet length */ -{ - struct sd *sd = (struct sd *) gspca_dev; - static const u8 ffd9[] = {0xff, 0xd9}; - - /* image packets start with: - * 02 8n - * with <n> bit: - * 0x01: even (0) / odd (1) image - * 0x02: end of image when set - */ - if (len < 3) - return; /* empty packet */ - if (*data == 0x02) { - if (data[1] & 0x02) { - sd->pkt_seq = !(data[1] & 1); - add_packet(gspca_dev, data + 2, len - 2); - gspca_frame_add(gspca_dev, LAST_PACKET, - ffd9, 2); - return; - } - if ((data[1] & 1) != sd->pkt_seq) - goto err; - if (gspca_dev->last_packet_type == LAST_PACKET) - gspca_frame_add(gspca_dev, FIRST_PACKET, - sd->jpeg_hdr, JPEG_HDR_SZ); - add_packet(gspca_dev, data + 2, len - 2); - return; - } -err: - gspca_dev->last_packet_type = DISCARD_PACKET; -} - -static int sd_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct gspca_dev *gspca_dev = - container_of(ctrl->handler, struct gspca_dev, ctrl_handler); - - gspca_dev->usb_err = 0; - - if (!gspca_dev->streaming) - return 0; - - switch (ctrl->id) { - case V4L2_CID_BRIGHTNESS: - setbrightness(gspca_dev, ctrl->val); - break; - case V4L2_CID_CONTRAST: - setcontrast(gspca_dev, ctrl->val); - break; - case V4L2_CID_HUE: - sethue(gspca_dev, ctrl->val); - break; - case V4L2_CID_SATURATION: - setcolor(gspca_dev, ctrl->val); - break; - case V4L2_CID_SHARPNESS: - setsharpness(gspca_dev, ctrl->val); - break; - } - return gspca_dev->usb_err; -} - -static const struct v4l2_ctrl_ops sd_ctrl_ops = { - .s_ctrl = sd_s_ctrl, -}; - -static int sd_init_controls(struct gspca_dev *gspca_dev) -{ - struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; - - gspca_dev->vdev.ctrl_handler = hdl; - v4l2_ctrl_handler_init(hdl, 5); - v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, - V4L2_CID_BRIGHTNESS, 0, 255, 1, 128); - v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, - V4L2_CID_CONTRAST, 0, 8, 1, 1); - v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, - V4L2_CID_HUE, 0, 255, 1, 0); - v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, - V4L2_CID_SATURATION, 0, 8, 1, 1); - v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, - V4L2_CID_SHARPNESS, 0, 255, 1, 0); - - if (hdl->error) { - pr_err("Could not initialize controls\n"); - return hdl->error; - } - return 0; -} - -/* sub-driver description */ -static const struct sd_desc sd_desc = { - .name = MODULE_NAME, - .config = sd_config, - .init = sd_init, - .init_controls = sd_init_controls, - .isoc_init = sd_isoc_init, - .start = sd_start, - .stopN = sd_stopN, - .pkt_scan = sd_pkt_scan, -}; - -/* -- module initialisation -- */ -static const struct usb_device_id device_table[] = { - {USB_DEVICE(0x04fc, 0x1528)}, - {} -}; -MODULE_DEVICE_TABLE(usb, device_table); - -/* -- device connect -- */ -static int sd_probe(struct usb_interface *intf, - const struct usb_device_id *id) -{ - /* the video interface for isochronous transfer is 1 */ - if (intf->cur_altsetting->desc.bInterfaceNumber != 1) - return -ENODEV; - - return gspca_dev_probe2(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); |