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path: root/drivers/media/video/gspca/benq.c
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Diffstat (limited to 'drivers/media/video/gspca/benq.c')
-rw-r--r--drivers/media/video/gspca/benq.c289
1 files changed, 0 insertions, 289 deletions
diff --git a/drivers/media/video/gspca/benq.c b/drivers/media/video/gspca/benq.c
deleted file mode 100644
index 352f321..0000000
--- a/drivers/media/video/gspca/benq.c
+++ /dev/null
@@ -1,289 +0,0 @@
-/*
- * Benq DC E300 subdriver
- *
- * Copyright (C) 2009 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 "benq"
-
-#include "gspca.h"
-
-MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>");
-MODULE_DESCRIPTION("Benq DC E300 USB Camera Driver");
-MODULE_LICENSE("GPL");
-
-/* specific webcam descriptor */
-struct sd {
- struct gspca_dev gspca_dev; /* !! must be the first item */
-};
-
-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},
-};
-
-static void sd_isoc_irq(struct urb *urb);
-
-/* -- write a register -- */
-static void reg_w(struct gspca_dev *gspca_dev,
- u16 value, u16 index)
-{
- struct usb_device *dev = gspca_dev->dev;
- int ret;
-
- if (gspca_dev->usb_err < 0)
- return;
- ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
- 0x02,
- 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;
- }
-}
-
-/* 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.no_urb_create = 1;
- 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 urb *urb;
- int i, n;
-
- /* create 4 URBs - 2 on endpoint 0x83 and 2 on 0x082 */
-#if MAX_NURBS < 4
-#error "Not enough URBs in the gspca table"
-#endif
-#define SD_PKT_SZ 64
-#define SD_NPKT 32
- for (n = 0; n < 4; n++) {
- urb = usb_alloc_urb(SD_NPKT, GFP_KERNEL);
- if (!urb) {
- pr_err("usb_alloc_urb failed\n");
- return -ENOMEM;
- }
- gspca_dev->urb[n] = urb;
- urb->transfer_buffer = usb_alloc_coherent(gspca_dev->dev,
- SD_PKT_SZ * SD_NPKT,
- GFP_KERNEL,
- &urb->transfer_dma);
-
- if (urb->transfer_buffer == NULL) {
- pr_err("usb_alloc_coherent failed\n");
- return -ENOMEM;
- }
- urb->dev = gspca_dev->dev;
- urb->context = gspca_dev;
- urb->transfer_buffer_length = SD_PKT_SZ * SD_NPKT;
- urb->pipe = usb_rcvisocpipe(gspca_dev->dev,
- n & 1 ? 0x82 : 0x83);
- urb->transfer_flags = URB_ISO_ASAP
- | URB_NO_TRANSFER_DMA_MAP;
- urb->interval = 1;
- urb->complete = sd_isoc_irq;
- urb->number_of_packets = SD_NPKT;
- for (i = 0; i < SD_NPKT; i++) {
- urb->iso_frame_desc[i].length = SD_PKT_SZ;
- urb->iso_frame_desc[i].offset = SD_PKT_SZ * i;
- }
- }
-
- return gspca_dev->usb_err;
-}
-
-static void sd_stopN(struct gspca_dev *gspca_dev)
-{
- struct usb_interface *intf;
-
- reg_w(gspca_dev, 0x003c, 0x0003);
- reg_w(gspca_dev, 0x003c, 0x0004);
- reg_w(gspca_dev, 0x003c, 0x0005);
- reg_w(gspca_dev, 0x003c, 0x0006);
- reg_w(gspca_dev, 0x003c, 0x0007);
-
- intf = usb_ifnum_to_if(gspca_dev->dev, gspca_dev->iface);
- usb_set_interface(gspca_dev->dev, gspca_dev->iface,
- intf->num_altsetting - 1);
-}
-
-static void sd_pkt_scan(struct gspca_dev *gspca_dev,
- u8 *data, /* isoc packet */
- int len) /* iso packet length */
-{
- /* unused */
-}
-
-/* reception of an URB */
-static void sd_isoc_irq(struct urb *urb)
-{
- struct gspca_dev *gspca_dev = (struct gspca_dev *) urb->context;
- struct urb *urb0;
- u8 *data;
- int i, st;
-
- PDEBUG(D_PACK, "sd isoc irq");
- if (!gspca_dev->streaming)
- return;
- if (urb->status != 0) {
- if (urb->status == -ESHUTDOWN)
- return; /* disconnection */
-#ifdef CONFIG_PM
- if (gspca_dev->frozen)
- return;
-#endif
- pr_err("urb status: %d\n", urb->status);
- return;
- }
-
- /* if this is a control URN (ep 0x83), wait */
- if (urb == gspca_dev->urb[0] || urb == gspca_dev->urb[2])
- return;
-
- /* scan both received URBs */
- if (urb == gspca_dev->urb[1])
- urb0 = gspca_dev->urb[0];
- else
- urb0 = gspca_dev->urb[2];
- for (i = 0; i < urb->number_of_packets; i++) {
-
- /* check the packet status and length */
- if (urb0->iso_frame_desc[i].actual_length != SD_PKT_SZ
- || urb->iso_frame_desc[i].actual_length != SD_PKT_SZ) {
- PDEBUG(D_ERR, "ISOC bad lengths %d / %d",
- urb0->iso_frame_desc[i].actual_length,
- urb->iso_frame_desc[i].actual_length);
- gspca_dev->last_packet_type = DISCARD_PACKET;
- continue;
- }
- st = urb0->iso_frame_desc[i].status;
- if (st == 0)
- st = urb->iso_frame_desc[i].status;
- if (st) {
- pr_err("ISOC data error: [%d] status=%d\n",
- i, st);
- gspca_dev->last_packet_type = DISCARD_PACKET;
- continue;
- }
-
- /*
- * The images are received in URBs of different endpoints
- * (0x83 and 0x82).
- * Image pieces in URBs of ep 0x83 are continuated in URBs of
- * ep 0x82 of the same index.
- * The packets in the URBs of endpoint 0x83 start with:
- * - 80 ba/bb 00 00 = start of image followed by 'ff d8'
- * - 04 ba/bb oo oo = image piece
- * where 'oo oo' is the image offset
- (not cheked)
- * - (other -> bad frame)
- * The images are JPEG encoded with full header and
- * normal ff escape.
- * The end of image ('ff d9') may occur in any URB.
- * (not cheked)
- */
- data = (u8 *) urb0->transfer_buffer
- + urb0->iso_frame_desc[i].offset;
- if (data[0] == 0x80 && (data[1] & 0xfe) == 0xba) {
-
- /* new image */
- gspca_frame_add(gspca_dev, LAST_PACKET,
- NULL, 0);
- gspca_frame_add(gspca_dev, FIRST_PACKET,
- data + 4, SD_PKT_SZ - 4);
- } else if (data[0] == 0x04 && (data[1] & 0xfe) == 0xba) {
- gspca_frame_add(gspca_dev, INTER_PACKET,
- data + 4, SD_PKT_SZ - 4);
- } else {
- gspca_dev->last_packet_type = DISCARD_PACKET;
- continue;
- }
- data = (u8 *) urb->transfer_buffer
- + urb->iso_frame_desc[i].offset;
- gspca_frame_add(gspca_dev, INTER_PACKET,
- data, SD_PKT_SZ);
- }
-
- /* resubmit the URBs */
- st = usb_submit_urb(urb0, GFP_ATOMIC);
- if (st < 0)
- pr_err("usb_submit_urb(0) ret %d\n", st);
- st = usb_submit_urb(urb, GFP_ATOMIC);
- if (st < 0)
- pr_err("usb_submit_urb() ret %d\n", st);
-}
-
-/* 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,
- .pkt_scan = sd_pkt_scan,
-};
-
-/* -- module initialisation -- */
-static const struct usb_device_id device_table[] = {
- {USB_DEVICE(0x04a5, 0x3035)},
- {}
-};
-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);