diff options
Diffstat (limited to 'drivers/media/video/gspca/finepix.c')
| -rw-r--r-- | drivers/media/video/gspca/finepix.c | 306 |
1 files changed, 0 insertions, 306 deletions
diff --git a/drivers/media/video/gspca/finepix.c b/drivers/media/video/gspca/finepix.c deleted file mode 100644 index c8f2201cc35a..000000000000 --- a/drivers/media/video/gspca/finepix.c +++ /dev/null @@ -1,306 +0,0 @@ -/* - * Fujifilm Finepix subdriver - * - * Copyright (C) 2008 Frank Zago - * - * 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 "finepix" - -#include "gspca.h" - -MODULE_AUTHOR("Frank Zago <frank@zago.net>"); -MODULE_DESCRIPTION("Fujifilm FinePix USB V4L2 driver"); -MODULE_LICENSE("GPL"); - -/* Default timeout, in ms */ -#define FPIX_TIMEOUT 250 - -/* Maximum transfer size to use. The windows driver reads by chunks of - * 0x2000 bytes, so do the same. Note: reading more seems to work - * too. */ -#define FPIX_MAX_TRANSFER 0x2000 - -/* Structure to hold all of our device specific stuff */ -struct usb_fpix { - struct gspca_dev gspca_dev; /* !! must be the first item */ - - struct work_struct work_struct; - struct workqueue_struct *work_thread; -}; - -/* Delay after which claim the next frame. If the delay is too small, - * the camera will return old frames. On the 4800Z, 20ms is bad, 25ms - * will fail every 4 or 5 frames, but 30ms is perfect. On the A210, - * 30ms is bad while 35ms is perfect. */ -#define NEXT_FRAME_DELAY 35 - -/* These cameras only support 320x200. */ -static const struct v4l2_pix_format fpix_mode[1] = { - { 320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE, - .bytesperline = 320, - .sizeimage = 320 * 240 * 3 / 8 + 590, - .colorspace = V4L2_COLORSPACE_SRGB, - .priv = 0} -}; - -/* send a command to the webcam */ -static int command(struct gspca_dev *gspca_dev, - int order) /* 0: reset, 1: frame request */ -{ - static u8 order_values[2][12] = { - {0xc6, 0, 0, 0, 0, 0, 0, 0, 0x20, 0, 0, 0}, /* reset */ - {0xd3, 0, 0, 0, 0, 0, 0, 0x01, 0, 0, 0, 0}, /* fr req */ - }; - - memcpy(gspca_dev->usb_buf, order_values[order], 12); - return usb_control_msg(gspca_dev->dev, - usb_sndctrlpipe(gspca_dev->dev, 0), - USB_REQ_GET_STATUS, - USB_DIR_OUT | USB_TYPE_CLASS | - USB_RECIP_INTERFACE, 0, 0, gspca_dev->usb_buf, - 12, FPIX_TIMEOUT); -} - -/* workqueue */ -static void dostream(struct work_struct *work) -{ - struct usb_fpix *dev = container_of(work, struct usb_fpix, work_struct); - struct gspca_dev *gspca_dev = &dev->gspca_dev; - struct urb *urb = gspca_dev->urb[0]; - u8 *data = urb->transfer_buffer; - int ret = 0; - int len; - - /* synchronize with the main driver */ - mutex_lock(&gspca_dev->usb_lock); - mutex_unlock(&gspca_dev->usb_lock); - PDEBUG(D_STREAM, "dostream started"); - - /* loop reading a frame */ -again: - while (gspca_dev->dev && gspca_dev->streaming) { -#ifdef CONFIG_PM - if (gspca_dev->frozen) - break; -#endif - - /* request a frame */ - mutex_lock(&gspca_dev->usb_lock); - ret = command(gspca_dev, 1); - mutex_unlock(&gspca_dev->usb_lock); - if (ret < 0) - break; -#ifdef CONFIG_PM - if (gspca_dev->frozen) - break; -#endif - if (!gspca_dev->dev || !gspca_dev->streaming) - break; - - /* the frame comes in parts */ - for (;;) { - ret = usb_bulk_msg(gspca_dev->dev, - urb->pipe, - data, - FPIX_MAX_TRANSFER, - &len, FPIX_TIMEOUT); - if (ret < 0) { - /* Most of the time we get a timeout - * error. Just restart. */ - goto again; - } -#ifdef CONFIG_PM - if (gspca_dev->frozen) - goto out; -#endif - if (!gspca_dev->dev || !gspca_dev->streaming) - goto out; - if (len < FPIX_MAX_TRANSFER || - (data[len - 2] == 0xff && - data[len - 1] == 0xd9)) { - - /* If the result is less than what was asked - * for, then it's the end of the - * frame. Sometimes the jpeg is not complete, - * but there's nothing we can do. We also end - * here if the the jpeg ends right at the end - * of the frame. */ - gspca_frame_add(gspca_dev, LAST_PACKET, - data, len); - break; - } - - /* got a partial image */ - gspca_frame_add(gspca_dev, - gspca_dev->last_packet_type - == LAST_PACKET - ? FIRST_PACKET : INTER_PACKET, - data, len); - } - - /* We must wait before trying reading the next - * frame. If we don't, or if the delay is too short, - * the camera will disconnect. */ - msleep(NEXT_FRAME_DELAY); - } - -out: - PDEBUG(D_STREAM, "dostream stopped"); -} - -/* this function is called at probe time */ -static int sd_config(struct gspca_dev *gspca_dev, - const struct usb_device_id *id) -{ - struct usb_fpix *dev = (struct usb_fpix *) gspca_dev; - struct cam *cam = &gspca_dev->cam; - - cam->cam_mode = fpix_mode; - cam->nmodes = 1; - cam->bulk = 1; - cam->bulk_size = FPIX_MAX_TRANSFER; - - INIT_WORK(&dev->work_struct, dostream); - - 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 usb_fpix *dev = (struct usb_fpix *) gspca_dev; - int ret, len; - - /* Init the device */ - ret = command(gspca_dev, 0); - if (ret < 0) { - pr_err("init failed %d\n", ret); - return ret; - } - - /* Read the result of the command. Ignore the result, for it - * varies with the device. */ - ret = usb_bulk_msg(gspca_dev->dev, - gspca_dev->urb[0]->pipe, - gspca_dev->urb[0]->transfer_buffer, - FPIX_MAX_TRANSFER, &len, - FPIX_TIMEOUT); - if (ret < 0) { - pr_err("usb_bulk_msg failed %d\n", ret); - return ret; - } - - /* Request a frame, but don't read it */ - ret = command(gspca_dev, 1); - if (ret < 0) { - pr_err("frame request failed %d\n", ret); - return ret; - } - - /* Again, reset bulk in endpoint */ - usb_clear_halt(gspca_dev->dev, gspca_dev->urb[0]->pipe); - - /* Start the workqueue function to do the streaming */ - dev->work_thread = create_singlethread_workqueue(MODULE_NAME); - queue_work(dev->work_thread, &dev->work_struct); - - return 0; -} - -/* called on streamoff with alt==0 and on disconnect */ -/* the usb_lock is held at entry - restore on exit */ -static void sd_stop0(struct gspca_dev *gspca_dev) -{ - struct usb_fpix *dev = (struct usb_fpix *) gspca_dev; - - /* wait for the work queue to terminate */ - mutex_unlock(&gspca_dev->usb_lock); - destroy_workqueue(dev->work_thread); - mutex_lock(&gspca_dev->usb_lock); - dev->work_thread = NULL; -} - -/* Table of supported USB devices */ -static const struct usb_device_id device_table[] = { - {USB_DEVICE(0x04cb, 0x0104)}, - {USB_DEVICE(0x04cb, 0x0109)}, - {USB_DEVICE(0x04cb, 0x010b)}, - {USB_DEVICE(0x04cb, 0x010f)}, - {USB_DEVICE(0x04cb, 0x0111)}, - {USB_DEVICE(0x04cb, 0x0113)}, - {USB_DEVICE(0x04cb, 0x0115)}, - {USB_DEVICE(0x04cb, 0x0117)}, - {USB_DEVICE(0x04cb, 0x0119)}, - {USB_DEVICE(0x04cb, 0x011b)}, - {USB_DEVICE(0x04cb, 0x011d)}, - {USB_DEVICE(0x04cb, 0x0121)}, - {USB_DEVICE(0x04cb, 0x0123)}, - {USB_DEVICE(0x04cb, 0x0125)}, - {USB_DEVICE(0x04cb, 0x0127)}, - {USB_DEVICE(0x04cb, 0x0129)}, - {USB_DEVICE(0x04cb, 0x012b)}, - {USB_DEVICE(0x04cb, 0x012d)}, - {USB_DEVICE(0x04cb, 0x012f)}, - {USB_DEVICE(0x04cb, 0x0131)}, - {USB_DEVICE(0x04cb, 0x013b)}, - {USB_DEVICE(0x04cb, 0x013d)}, - {USB_DEVICE(0x04cb, 0x013f)}, - {} -}; - -MODULE_DEVICE_TABLE(usb, device_table); - -/* sub-driver description */ -static const struct sd_desc sd_desc = { - .name = MODULE_NAME, - .config = sd_config, - .init = sd_init, - .start = sd_start, - .stop0 = sd_stop0, -}; - -/* -- 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 usb_fpix), - 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); |