diff options
Diffstat (limited to 'drivers/media/video/gspca/finepix.c')
| -rw-r--r-- | drivers/media/video/gspca/finepix.c | 471 |
1 files changed, 0 insertions, 471 deletions
diff --git a/drivers/media/video/gspca/finepix.c b/drivers/media/video/gspca/finepix.c deleted file mode 100644 index afc8b2dd307..00000000000 --- a/drivers/media/video/gspca/finepix.c +++ /dev/null @@ -1,471 +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 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 (HZ / 10) - -/* 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 */ - - /* - * USB stuff - */ - struct usb_ctrlrequest ctrlreq; - struct urb *control_urb; - struct timer_list bulk_timer; - - enum { - FPIX_NOP, /* inactive, else streaming */ - FPIX_RESET, /* must reset */ - FPIX_REQ_FRAME, /* requesting a frame */ - FPIX_READ_FRAME, /* reading frame */ - } state; - - /* - * Driver stuff - */ - struct delayed_work wqe; - struct completion can_close; - int streaming; -}; - -/* 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. */ -#define NEXT_FRAME_DELAY (((HZ * 30) + 999) / 1000) - -#define dev_new_state(new_state) { \ - PDEBUG(D_STREAM, "new state from %d to %d at %s:%d", \ - dev->state, new_state, __func__, __LINE__); \ - dev->state = new_state; \ -} - -/* 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} -}; - -/* Reads part of a frame */ -static void read_frame_part(struct usb_fpix *dev) -{ - int ret; - - PDEBUG(D_STREAM, "read_frame_part"); - - /* Reads part of a frame */ - ret = usb_submit_urb(dev->gspca_dev.urb[0], GFP_ATOMIC); - if (ret) { - dev_new_state(FPIX_RESET); - schedule_delayed_work(&dev->wqe, 1); - PDEBUG(D_STREAM, "usb_submit_urb failed with %d", - ret); - } else { - /* Sometimes we never get a callback, so use a timer. - * Is this masking a bug somewhere else? */ - dev->bulk_timer.expires = jiffies + msecs_to_jiffies(150); - add_timer(&dev->bulk_timer); - } -} - -/* Callback for URBs. */ -static void urb_callback(struct urb *urb) -{ - struct gspca_dev *gspca_dev = urb->context; - struct usb_fpix *dev = (struct usb_fpix *) gspca_dev; - - PDEBUG(D_PACK, - "enter urb_callback - status=%d, length=%d", - urb->status, urb->actual_length); - - if (dev->state == FPIX_READ_FRAME) - del_timer(&dev->bulk_timer); - - if (urb->status != 0) { - /* We kill a stuck urb every 50 frames on average, so don't - * display a log message for that. */ - if (urb->status != -ECONNRESET) - PDEBUG(D_STREAM, "bad URB status %d", urb->status); - dev_new_state(FPIX_RESET); - schedule_delayed_work(&dev->wqe, 1); - } - - switch (dev->state) { - case FPIX_REQ_FRAME: - dev_new_state(FPIX_READ_FRAME); - read_frame_part(dev); - break; - - case FPIX_READ_FRAME: { - unsigned char *data = urb->transfer_buffer; - struct gspca_frame *frame; - - frame = gspca_get_i_frame(&dev->gspca_dev); - if (frame == NULL) - gspca_dev->last_packet_type = DISCARD_PACKET; - if (urb->actual_length < FPIX_MAX_TRANSFER || - (data[urb->actual_length-2] == 0xff && - data[urb->actual_length-1] == 0xd9)) { - - /* If the result is less than what was asked - * for, then it's the end of the - * frame. Sometime 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. */ - if (frame) - gspca_frame_add(gspca_dev, LAST_PACKET, - frame, - data, urb->actual_length); - dev_new_state(FPIX_REQ_FRAME); - schedule_delayed_work(&dev->wqe, NEXT_FRAME_DELAY); - } else { - - /* got a partial image */ - if (frame) - gspca_frame_add(gspca_dev, - gspca_dev->last_packet_type - == LAST_PACKET - ? FIRST_PACKET : INTER_PACKET, - frame, - data, urb->actual_length); - read_frame_part(dev); - } - break; - } - - case FPIX_NOP: - case FPIX_RESET: - PDEBUG(D_STREAM, "invalid state %d", dev->state); - break; - } -} - -/* Request a new frame */ -static void request_frame(struct usb_fpix *dev) -{ - int ret; - struct gspca_dev *gspca_dev = &dev->gspca_dev; - - /* Setup command packet */ - memset(gspca_dev->usb_buf, 0, 12); - gspca_dev->usb_buf[0] = 0xd3; - gspca_dev->usb_buf[7] = 0x01; - - /* Request a frame */ - dev->ctrlreq.bRequestType = - USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE; - dev->ctrlreq.bRequest = USB_REQ_GET_STATUS; - dev->ctrlreq.wValue = 0; - dev->ctrlreq.wIndex = 0; - dev->ctrlreq.wLength = cpu_to_le16(12); - - usb_fill_control_urb(dev->control_urb, - gspca_dev->dev, - usb_sndctrlpipe(gspca_dev->dev, 0), - (unsigned char *) &dev->ctrlreq, - gspca_dev->usb_buf, - 12, urb_callback, gspca_dev); - - ret = usb_submit_urb(dev->control_urb, GFP_ATOMIC); - if (ret) { - dev_new_state(FPIX_RESET); - schedule_delayed_work(&dev->wqe, 1); - PDEBUG(D_STREAM, "usb_submit_urb failed with %d", ret); - } -} - -/*--------------------------------------------------------------------------*/ - -/* State machine. */ -static void fpix_sm(struct work_struct *work) -{ - struct usb_fpix *dev = container_of(work, struct usb_fpix, wqe.work); - - PDEBUG(D_STREAM, "fpix_sm state %d", dev->state); - - /* verify that the device wasn't unplugged */ - if (!dev->gspca_dev.present) { - PDEBUG(D_STREAM, "device is gone"); - dev_new_state(FPIX_NOP); - complete(&dev->can_close); - return; - } - - if (!dev->streaming) { - PDEBUG(D_STREAM, "stopping state machine"); - dev_new_state(FPIX_NOP); - complete(&dev->can_close); - return; - } - - switch (dev->state) { - case FPIX_RESET: - dev_new_state(FPIX_REQ_FRAME); - schedule_delayed_work(&dev->wqe, HZ / 10); - break; - - case FPIX_REQ_FRAME: - /* get an image */ - request_frame(dev); - break; - - case FPIX_NOP: - case FPIX_READ_FRAME: - PDEBUG(D_STREAM, "invalid state %d", dev->state); - break; - } -} - -/* this function is called at probe time */ -static int sd_config(struct gspca_dev *gspca_dev, - const struct usb_device_id *id) -{ - struct cam *cam = &gspca_dev->cam; - - cam->cam_mode = fpix_mode; - cam->nmodes = 1; - cam->epaddr = 0x01; /* todo: correct for all cams? */ - cam->bulk_size = FPIX_MAX_TRANSFER; - -/* gspca_dev->nbalt = 1; * use bulk transfer */ - return 0; -} - -/* Stop streaming and free the ressources allocated by sd_start. */ -static void sd_stopN(struct gspca_dev *gspca_dev) -{ - struct usb_fpix *dev = (struct usb_fpix *) gspca_dev; - - dev->streaming = 0; - - /* Stop the state machine */ - if (dev->state != FPIX_NOP) - wait_for_completion(&dev->can_close); -} - -/* called on streamoff with alt 0 and disconnect */ -static void sd_stop0(struct gspca_dev *gspca_dev) -{ - struct usb_fpix *dev = (struct usb_fpix *) gspca_dev; - - usb_free_urb(dev->control_urb); - dev->control_urb = NULL; -} - -/* Kill an URB that hasn't completed. */ -static void timeout_kill(unsigned long data) -{ - struct urb *urb = (struct urb *) data; - - usb_unlink_urb(urb); -} - -/* this function is called at probe and resume time */ -static int sd_init(struct gspca_dev *gspca_dev) -{ - struct usb_fpix *dev = (struct usb_fpix *) gspca_dev; - - INIT_DELAYED_WORK(&dev->wqe, fpix_sm); - - init_timer(&dev->bulk_timer); - dev->bulk_timer.function = timeout_kill; - - return 0; -} - -static int sd_start(struct gspca_dev *gspca_dev) -{ - struct usb_fpix *dev = (struct usb_fpix *) gspca_dev; - int ret; - int size_ret; - - /* Init the device */ - memset(gspca_dev->usb_buf, 0, 12); - gspca_dev->usb_buf[0] = 0xc6; - gspca_dev->usb_buf[8] = 0x20; - - ret = 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); - - if (ret != 12) { - PDEBUG(D_STREAM, "usb_control_msg failed (%d)", ret); - ret = -EIO; - goto error; - } - - /* Read the result of the command. Ignore the result, for it - * varies with the device. */ - ret = usb_bulk_msg(gspca_dev->dev, - usb_rcvbulkpipe(gspca_dev->dev, - gspca_dev->cam.epaddr), - gspca_dev->usb_buf, FPIX_MAX_TRANSFER, &size_ret, - FPIX_TIMEOUT); - if (ret != 0) { - PDEBUG(D_STREAM, "usb_bulk_msg failed (%d)", ret); - ret = -EIO; - goto error; - } - - /* Request a frame, but don't read it */ - memset(gspca_dev->usb_buf, 0, 12); - gspca_dev->usb_buf[0] = 0xd3; - gspca_dev->usb_buf[7] = 0x01; - - ret = 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); - if (ret != 12) { - PDEBUG(D_STREAM, "usb_control_msg failed (%d)", ret); - ret = -EIO; - goto error; - } - - /* Again, reset bulk in endpoint */ - usb_clear_halt(gspca_dev->dev, gspca_dev->cam.epaddr); - - /* Allocate a control URB */ - dev->control_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!dev->control_urb) { - PDEBUG(D_STREAM, "No free urbs available"); - ret = -EIO; - goto error; - } - - /* Various initializations. */ - init_completion(&dev->can_close); - dev->bulk_timer.data = (unsigned long)dev->gspca_dev.urb[0]; - dev->gspca_dev.urb[0]->complete = urb_callback; - dev->streaming = 1; - - /* Schedule a frame request. */ - dev_new_state(FPIX_REQ_FRAME); - schedule_delayed_work(&dev->wqe, 1); - - return 0; - -error: - /* Free the ressources */ - sd_stopN(gspca_dev); - sd_stop0(gspca_dev); - return ret; -} - -/* Table of supported USB devices */ -static const __devinitdata 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, - .stopN = sd_stopN, - .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, -#endif -}; - -/* -- module insert / remove -- */ -static int __init sd_mod_init(void) -{ - if (usb_register(&sd_driver) < 0) - return -1; - PDEBUG(D_PROBE, "registered"); - return 0; -} -static void __exit sd_mod_exit(void) -{ - usb_deregister(&sd_driver); - PDEBUG(D_PROBE, "deregistered"); -} - -module_init(sd_mod_init); -module_exit(sd_mod_exit); |