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08af245de0
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
1983 lines
48 KiB
C
1983 lines
48 KiB
C
/*
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* Auvitek AU0828 USB Bridge (Analog video support)
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*
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* Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org>
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* Copyright (C) 2005-2008 Auvitek International, Ltd.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* As published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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/* Developer Notes:
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*
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* VBI support is not yet working
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* The hardware scaler supported is unimplemented
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* AC97 audio support is unimplemented (only i2s audio mode)
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*
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*/
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/suspend.h>
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#include <linux/version.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-ioctl.h>
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#include <media/v4l2-chip-ident.h>
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#include <media/tuner.h>
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#include "au0828.h"
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#include "au0828-reg.h"
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static DEFINE_MUTEX(au0828_sysfs_lock);
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#define AU0828_VERSION_CODE KERNEL_VERSION(0, 0, 1)
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/* ------------------------------------------------------------------
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Videobuf operations
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------------------------------------------------------------------*/
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static unsigned int isoc_debug;
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module_param(isoc_debug, int, 0644);
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MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
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#define au0828_isocdbg(fmt, arg...) \
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do {\
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if (isoc_debug) { \
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printk(KERN_INFO "au0828 %s :"fmt, \
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__func__ , ##arg); \
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} \
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} while (0)
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static inline void print_err_status(struct au0828_dev *dev,
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int packet, int status)
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{
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char *errmsg = "Unknown";
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switch (status) {
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case -ENOENT:
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errmsg = "unlinked synchronuously";
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break;
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case -ECONNRESET:
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errmsg = "unlinked asynchronuously";
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break;
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case -ENOSR:
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errmsg = "Buffer error (overrun)";
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break;
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case -EPIPE:
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errmsg = "Stalled (device not responding)";
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break;
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case -EOVERFLOW:
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errmsg = "Babble (bad cable?)";
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break;
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case -EPROTO:
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errmsg = "Bit-stuff error (bad cable?)";
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break;
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case -EILSEQ:
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errmsg = "CRC/Timeout (could be anything)";
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break;
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case -ETIME:
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errmsg = "Device does not respond";
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break;
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}
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if (packet < 0) {
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au0828_isocdbg("URB status %d [%s].\n", status, errmsg);
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} else {
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au0828_isocdbg("URB packet %d, status %d [%s].\n",
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packet, status, errmsg);
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}
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}
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static int check_dev(struct au0828_dev *dev)
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{
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if (dev->dev_state & DEV_DISCONNECTED) {
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printk(KERN_INFO "v4l2 ioctl: device not present\n");
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return -ENODEV;
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}
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if (dev->dev_state & DEV_MISCONFIGURED) {
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printk(KERN_INFO "v4l2 ioctl: device is misconfigured; "
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"close and open it again\n");
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return -EIO;
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}
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return 0;
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}
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/*
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* IRQ callback, called by URB callback
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*/
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static void au0828_irq_callback(struct urb *urb)
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{
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struct au0828_dmaqueue *dma_q = urb->context;
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struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
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unsigned long flags = 0;
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int rc, i;
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switch (urb->status) {
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case 0: /* success */
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case -ETIMEDOUT: /* NAK */
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break;
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case -ECONNRESET: /* kill */
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case -ENOENT:
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case -ESHUTDOWN:
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au0828_isocdbg("au0828_irq_callback called: status kill\n");
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return;
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default: /* unknown error */
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au0828_isocdbg("urb completition error %d.\n", urb->status);
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break;
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}
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/* Copy data from URB */
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spin_lock_irqsave(&dev->slock, flags);
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rc = dev->isoc_ctl.isoc_copy(dev, urb);
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spin_unlock_irqrestore(&dev->slock, flags);
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/* Reset urb buffers */
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for (i = 0; i < urb->number_of_packets; i++) {
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urb->iso_frame_desc[i].status = 0;
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urb->iso_frame_desc[i].actual_length = 0;
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}
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urb->status = 0;
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urb->status = usb_submit_urb(urb, GFP_ATOMIC);
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if (urb->status) {
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au0828_isocdbg("urb resubmit failed (error=%i)\n",
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urb->status);
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}
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}
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/*
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* Stop and Deallocate URBs
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*/
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void au0828_uninit_isoc(struct au0828_dev *dev)
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{
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struct urb *urb;
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int i;
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au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
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dev->isoc_ctl.nfields = -1;
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for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
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urb = dev->isoc_ctl.urb[i];
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if (urb) {
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if (!irqs_disabled())
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usb_kill_urb(urb);
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else
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usb_unlink_urb(urb);
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if (dev->isoc_ctl.transfer_buffer[i]) {
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usb_free_coherent(dev->usbdev,
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urb->transfer_buffer_length,
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dev->isoc_ctl.transfer_buffer[i],
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urb->transfer_dma);
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}
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usb_free_urb(urb);
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dev->isoc_ctl.urb[i] = NULL;
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}
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dev->isoc_ctl.transfer_buffer[i] = NULL;
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}
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kfree(dev->isoc_ctl.urb);
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kfree(dev->isoc_ctl.transfer_buffer);
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dev->isoc_ctl.urb = NULL;
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dev->isoc_ctl.transfer_buffer = NULL;
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dev->isoc_ctl.num_bufs = 0;
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}
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/*
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* Allocate URBs and start IRQ
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*/
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int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
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int num_bufs, int max_pkt_size,
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int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))
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{
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struct au0828_dmaqueue *dma_q = &dev->vidq;
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int i;
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int sb_size, pipe;
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struct urb *urb;
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int j, k;
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int rc;
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au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
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/* De-allocates all pending stuff */
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au0828_uninit_isoc(dev);
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dev->isoc_ctl.isoc_copy = isoc_copy;
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dev->isoc_ctl.num_bufs = num_bufs;
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dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
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if (!dev->isoc_ctl.urb) {
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au0828_isocdbg("cannot alloc memory for usb buffers\n");
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return -ENOMEM;
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}
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dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs,
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GFP_KERNEL);
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if (!dev->isoc_ctl.transfer_buffer) {
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au0828_isocdbg("cannot allocate memory for usb transfer\n");
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kfree(dev->isoc_ctl.urb);
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return -ENOMEM;
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}
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dev->isoc_ctl.max_pkt_size = max_pkt_size;
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dev->isoc_ctl.buf = NULL;
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sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
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/* allocate urbs and transfer buffers */
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for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
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urb = usb_alloc_urb(max_packets, GFP_KERNEL);
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if (!urb) {
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au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i);
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au0828_uninit_isoc(dev);
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return -ENOMEM;
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}
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dev->isoc_ctl.urb[i] = urb;
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dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
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sb_size, GFP_KERNEL, &urb->transfer_dma);
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if (!dev->isoc_ctl.transfer_buffer[i]) {
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printk("unable to allocate %i bytes for transfer"
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" buffer %i%s\n",
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sb_size, i,
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in_interrupt() ? " while in int" : "");
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au0828_uninit_isoc(dev);
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return -ENOMEM;
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}
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memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
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pipe = usb_rcvisocpipe(dev->usbdev,
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dev->isoc_in_endpointaddr),
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usb_fill_int_urb(urb, dev->usbdev, pipe,
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dev->isoc_ctl.transfer_buffer[i], sb_size,
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au0828_irq_callback, dma_q, 1);
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urb->number_of_packets = max_packets;
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urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
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k = 0;
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for (j = 0; j < max_packets; j++) {
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urb->iso_frame_desc[j].offset = k;
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urb->iso_frame_desc[j].length =
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dev->isoc_ctl.max_pkt_size;
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k += dev->isoc_ctl.max_pkt_size;
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}
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}
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init_waitqueue_head(&dma_q->wq);
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/* submit urbs and enables IRQ */
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for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
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rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
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if (rc) {
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au0828_isocdbg("submit of urb %i failed (error=%i)\n",
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i, rc);
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au0828_uninit_isoc(dev);
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return rc;
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}
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}
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return 0;
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}
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/*
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* Announces that a buffer were filled and request the next
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*/
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static inline void buffer_filled(struct au0828_dev *dev,
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struct au0828_dmaqueue *dma_q,
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struct au0828_buffer *buf)
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{
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/* Advice that buffer was filled */
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au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
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buf->vb.state = VIDEOBUF_DONE;
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buf->vb.field_count++;
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do_gettimeofday(&buf->vb.ts);
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dev->isoc_ctl.buf = NULL;
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list_del(&buf->vb.queue);
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wake_up(&buf->vb.done);
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}
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static inline void vbi_buffer_filled(struct au0828_dev *dev,
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struct au0828_dmaqueue *dma_q,
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struct au0828_buffer *buf)
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{
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/* Advice that buffer was filled */
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au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
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buf->vb.state = VIDEOBUF_DONE;
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buf->vb.field_count++;
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do_gettimeofday(&buf->vb.ts);
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dev->isoc_ctl.vbi_buf = NULL;
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list_del(&buf->vb.queue);
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wake_up(&buf->vb.done);
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}
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/*
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* Identify the buffer header type and properly handles
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*/
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static void au0828_copy_video(struct au0828_dev *dev,
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struct au0828_dmaqueue *dma_q,
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struct au0828_buffer *buf,
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unsigned char *p,
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unsigned char *outp, unsigned long len)
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{
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void *fieldstart, *startwrite, *startread;
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int linesdone, currlinedone, offset, lencopy, remain;
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int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
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if (len == 0)
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return;
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if (dma_q->pos + len > buf->vb.size)
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len = buf->vb.size - dma_q->pos;
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startread = p;
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remain = len;
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/* Interlaces frame */
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if (buf->top_field)
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fieldstart = outp;
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else
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fieldstart = outp + bytesperline;
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linesdone = dma_q->pos / bytesperline;
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currlinedone = dma_q->pos % bytesperline;
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offset = linesdone * bytesperline * 2 + currlinedone;
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startwrite = fieldstart + offset;
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lencopy = bytesperline - currlinedone;
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lencopy = lencopy > remain ? remain : lencopy;
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if ((char *)startwrite + lencopy > (char *)outp + buf->vb.size) {
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au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
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((char *)startwrite + lencopy) -
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((char *)outp + buf->vb.size));
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remain = (char *)outp + buf->vb.size - (char *)startwrite;
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lencopy = remain;
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}
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if (lencopy <= 0)
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return;
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memcpy(startwrite, startread, lencopy);
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remain -= lencopy;
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while (remain > 0) {
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startwrite += lencopy + bytesperline;
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startread += lencopy;
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if (bytesperline > remain)
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lencopy = remain;
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else
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lencopy = bytesperline;
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if ((char *)startwrite + lencopy > (char *)outp +
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buf->vb.size) {
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au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
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((char *)startwrite + lencopy) -
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((char *)outp + buf->vb.size));
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lencopy = remain = (char *)outp + buf->vb.size -
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(char *)startwrite;
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}
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if (lencopy <= 0)
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break;
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memcpy(startwrite, startread, lencopy);
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remain -= lencopy;
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}
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if (offset > 1440) {
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/* We have enough data to check for greenscreen */
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if (outp[0] < 0x60 && outp[1440] < 0x60)
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dev->greenscreen_detected = 1;
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}
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dma_q->pos += len;
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}
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/*
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* video-buf generic routine to get the next available buffer
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*/
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static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
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struct au0828_buffer **buf)
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{
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struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
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if (list_empty(&dma_q->active)) {
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au0828_isocdbg("No active queue to serve\n");
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dev->isoc_ctl.buf = NULL;
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*buf = NULL;
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return;
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}
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/* Get the next buffer */
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*buf = list_entry(dma_q->active.next, struct au0828_buffer, vb.queue);
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dev->isoc_ctl.buf = *buf;
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return;
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}
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static void au0828_copy_vbi(struct au0828_dev *dev,
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struct au0828_dmaqueue *dma_q,
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struct au0828_buffer *buf,
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unsigned char *p,
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unsigned char *outp, unsigned long len)
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{
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unsigned char *startwrite, *startread;
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int bytesperline;
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int i, j = 0;
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if (dev == NULL) {
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au0828_isocdbg("dev is null\n");
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return;
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}
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if (dma_q == NULL) {
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au0828_isocdbg("dma_q is null\n");
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return;
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}
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if (buf == NULL)
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return;
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if (p == NULL) {
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au0828_isocdbg("p is null\n");
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return;
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}
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if (outp == NULL) {
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au0828_isocdbg("outp is null\n");
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return;
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}
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bytesperline = dev->vbi_width;
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if (dma_q->pos + len > buf->vb.size)
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len = buf->vb.size - dma_q->pos;
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startread = p;
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startwrite = outp + (dma_q->pos / 2);
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/* Make sure the bottom field populates the second half of the frame */
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if (buf->top_field == 0)
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startwrite += bytesperline * dev->vbi_height;
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for (i = 0; i < len; i += 2)
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startwrite[j++] = startread[i+1];
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dma_q->pos += len;
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}
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/*
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* video-buf generic routine to get the next available VBI buffer
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*/
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static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
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struct au0828_buffer **buf)
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{
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struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
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char *outp;
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if (list_empty(&dma_q->active)) {
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au0828_isocdbg("No active queue to serve\n");
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dev->isoc_ctl.vbi_buf = NULL;
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*buf = NULL;
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return;
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}
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/* Get the next buffer */
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*buf = list_entry(dma_q->active.next, struct au0828_buffer, vb.queue);
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/* Cleans up buffer - Usefull for testing for frame/URB loss */
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outp = videobuf_to_vmalloc(&(*buf)->vb);
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memset(outp, 0x00, (*buf)->vb.size);
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|
|
dev->isoc_ctl.vbi_buf = *buf;
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Controls the isoc copy of each urb packet
|
|
*/
|
|
static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
|
|
{
|
|
struct au0828_buffer *buf;
|
|
struct au0828_buffer *vbi_buf;
|
|
struct au0828_dmaqueue *dma_q = urb->context;
|
|
struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq;
|
|
unsigned char *outp = NULL;
|
|
unsigned char *vbioutp = NULL;
|
|
int i, len = 0, rc = 1;
|
|
unsigned char *p;
|
|
unsigned char fbyte;
|
|
unsigned int vbi_field_size;
|
|
unsigned int remain, lencopy;
|
|
|
|
if (!dev)
|
|
return 0;
|
|
|
|
if ((dev->dev_state & DEV_DISCONNECTED) ||
|
|
(dev->dev_state & DEV_MISCONFIGURED))
|
|
return 0;
|
|
|
|
if (urb->status < 0) {
|
|
print_err_status(dev, -1, urb->status);
|
|
if (urb->status == -ENOENT)
|
|
return 0;
|
|
}
|
|
|
|
buf = dev->isoc_ctl.buf;
|
|
if (buf != NULL)
|
|
outp = videobuf_to_vmalloc(&buf->vb);
|
|
|
|
vbi_buf = dev->isoc_ctl.vbi_buf;
|
|
if (vbi_buf != NULL)
|
|
vbioutp = videobuf_to_vmalloc(&vbi_buf->vb);
|
|
|
|
for (i = 0; i < urb->number_of_packets; i++) {
|
|
int status = urb->iso_frame_desc[i].status;
|
|
|
|
if (status < 0) {
|
|
print_err_status(dev, i, status);
|
|
if (urb->iso_frame_desc[i].status != -EPROTO)
|
|
continue;
|
|
}
|
|
|
|
if (urb->iso_frame_desc[i].actual_length <= 0)
|
|
continue;
|
|
|
|
if (urb->iso_frame_desc[i].actual_length >
|
|
dev->max_pkt_size) {
|
|
au0828_isocdbg("packet bigger than packet size");
|
|
continue;
|
|
}
|
|
|
|
p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
|
|
fbyte = p[0];
|
|
len = urb->iso_frame_desc[i].actual_length - 4;
|
|
p += 4;
|
|
|
|
if (fbyte & 0x80) {
|
|
len -= 4;
|
|
p += 4;
|
|
au0828_isocdbg("Video frame %s\n",
|
|
(fbyte & 0x40) ? "odd" : "even");
|
|
if (fbyte & 0x40) {
|
|
/* VBI */
|
|
if (vbi_buf != NULL)
|
|
vbi_buffer_filled(dev,
|
|
vbi_dma_q,
|
|
vbi_buf);
|
|
vbi_get_next_buf(vbi_dma_q, &vbi_buf);
|
|
if (vbi_buf == NULL)
|
|
vbioutp = NULL;
|
|
else
|
|
vbioutp = videobuf_to_vmalloc(
|
|
&vbi_buf->vb);
|
|
|
|
/* Video */
|
|
if (buf != NULL)
|
|
buffer_filled(dev, dma_q, buf);
|
|
get_next_buf(dma_q, &buf);
|
|
if (buf == NULL)
|
|
outp = NULL;
|
|
else
|
|
outp = videobuf_to_vmalloc(&buf->vb);
|
|
|
|
/* As long as isoc traffic is arriving, keep
|
|
resetting the timer */
|
|
if (dev->vid_timeout_running)
|
|
mod_timer(&dev->vid_timeout,
|
|
jiffies + (HZ / 10));
|
|
if (dev->vbi_timeout_running)
|
|
mod_timer(&dev->vbi_timeout,
|
|
jiffies + (HZ / 10));
|
|
}
|
|
|
|
if (buf != NULL) {
|
|
if (fbyte & 0x40)
|
|
buf->top_field = 1;
|
|
else
|
|
buf->top_field = 0;
|
|
}
|
|
|
|
if (vbi_buf != NULL) {
|
|
if (fbyte & 0x40)
|
|
vbi_buf->top_field = 1;
|
|
else
|
|
vbi_buf->top_field = 0;
|
|
}
|
|
|
|
dev->vbi_read = 0;
|
|
vbi_dma_q->pos = 0;
|
|
dma_q->pos = 0;
|
|
}
|
|
|
|
vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
|
|
if (dev->vbi_read < vbi_field_size) {
|
|
remain = vbi_field_size - dev->vbi_read;
|
|
if (len < remain)
|
|
lencopy = len;
|
|
else
|
|
lencopy = remain;
|
|
|
|
if (vbi_buf != NULL)
|
|
au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
|
|
vbioutp, len);
|
|
|
|
len -= lencopy;
|
|
p += lencopy;
|
|
dev->vbi_read += lencopy;
|
|
}
|
|
|
|
if (dev->vbi_read >= vbi_field_size && buf != NULL)
|
|
au0828_copy_video(dev, dma_q, buf, p, outp, len);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static int
|
|
buffer_setup(struct videobuf_queue *vq, unsigned int *count,
|
|
unsigned int *size)
|
|
{
|
|
struct au0828_fh *fh = vq->priv_data;
|
|
*size = (fh->dev->width * fh->dev->height * 16 + 7) >> 3;
|
|
|
|
if (0 == *count)
|
|
*count = AU0828_DEF_BUF;
|
|
|
|
if (*count < AU0828_MIN_BUF)
|
|
*count = AU0828_MIN_BUF;
|
|
return 0;
|
|
}
|
|
|
|
/* This is called *without* dev->slock held; please keep it that way */
|
|
static void free_buffer(struct videobuf_queue *vq, struct au0828_buffer *buf)
|
|
{
|
|
struct au0828_fh *fh = vq->priv_data;
|
|
struct au0828_dev *dev = fh->dev;
|
|
unsigned long flags = 0;
|
|
if (in_interrupt())
|
|
BUG();
|
|
|
|
/* We used to wait for the buffer to finish here, but this didn't work
|
|
because, as we were keeping the state as VIDEOBUF_QUEUED,
|
|
videobuf_queue_cancel marked it as finished for us.
|
|
(Also, it could wedge forever if the hardware was misconfigured.)
|
|
|
|
This should be safe; by the time we get here, the buffer isn't
|
|
queued anymore. If we ever start marking the buffers as
|
|
VIDEOBUF_ACTIVE, it won't be, though.
|
|
*/
|
|
spin_lock_irqsave(&dev->slock, flags);
|
|
if (dev->isoc_ctl.buf == buf)
|
|
dev->isoc_ctl.buf = NULL;
|
|
spin_unlock_irqrestore(&dev->slock, flags);
|
|
|
|
videobuf_vmalloc_free(&buf->vb);
|
|
buf->vb.state = VIDEOBUF_NEEDS_INIT;
|
|
}
|
|
|
|
static int
|
|
buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
|
|
enum v4l2_field field)
|
|
{
|
|
struct au0828_fh *fh = vq->priv_data;
|
|
struct au0828_buffer *buf = container_of(vb, struct au0828_buffer, vb);
|
|
struct au0828_dev *dev = fh->dev;
|
|
int rc = 0, urb_init = 0;
|
|
|
|
buf->vb.size = (fh->dev->width * fh->dev->height * 16 + 7) >> 3;
|
|
|
|
if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
|
|
return -EINVAL;
|
|
|
|
buf->vb.width = dev->width;
|
|
buf->vb.height = dev->height;
|
|
buf->vb.field = field;
|
|
|
|
if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
|
|
rc = videobuf_iolock(vq, &buf->vb, NULL);
|
|
if (rc < 0) {
|
|
printk(KERN_INFO "videobuf_iolock failed\n");
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
if (!dev->isoc_ctl.num_bufs)
|
|
urb_init = 1;
|
|
|
|
if (urb_init) {
|
|
rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
|
|
AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
|
|
au0828_isoc_copy);
|
|
if (rc < 0) {
|
|
printk(KERN_INFO "au0828_init_isoc failed\n");
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
buf->vb.state = VIDEOBUF_PREPARED;
|
|
return 0;
|
|
|
|
fail:
|
|
free_buffer(vq, buf);
|
|
return rc;
|
|
}
|
|
|
|
static void
|
|
buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
|
|
{
|
|
struct au0828_buffer *buf = container_of(vb,
|
|
struct au0828_buffer,
|
|
vb);
|
|
struct au0828_fh *fh = vq->priv_data;
|
|
struct au0828_dev *dev = fh->dev;
|
|
struct au0828_dmaqueue *vidq = &dev->vidq;
|
|
|
|
buf->vb.state = VIDEOBUF_QUEUED;
|
|
list_add_tail(&buf->vb.queue, &vidq->active);
|
|
}
|
|
|
|
static void buffer_release(struct videobuf_queue *vq,
|
|
struct videobuf_buffer *vb)
|
|
{
|
|
struct au0828_buffer *buf = container_of(vb,
|
|
struct au0828_buffer,
|
|
vb);
|
|
|
|
free_buffer(vq, buf);
|
|
}
|
|
|
|
static struct videobuf_queue_ops au0828_video_qops = {
|
|
.buf_setup = buffer_setup,
|
|
.buf_prepare = buffer_prepare,
|
|
.buf_queue = buffer_queue,
|
|
.buf_release = buffer_release,
|
|
};
|
|
|
|
/* ------------------------------------------------------------------
|
|
V4L2 interface
|
|
------------------------------------------------------------------*/
|
|
|
|
static int au0828_i2s_init(struct au0828_dev *dev)
|
|
{
|
|
/* Enable i2s mode */
|
|
au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Auvitek au0828 analog stream enable
|
|
* Please set interface0 to AS5 before enable the stream
|
|
*/
|
|
int au0828_analog_stream_enable(struct au0828_dev *d)
|
|
{
|
|
dprintk(1, "au0828_analog_stream_enable called\n");
|
|
au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
|
|
au0828_writereg(d, 0x106, 0x00);
|
|
/* set x position */
|
|
au0828_writereg(d, 0x110, 0x00);
|
|
au0828_writereg(d, 0x111, 0x00);
|
|
au0828_writereg(d, 0x114, 0xa0);
|
|
au0828_writereg(d, 0x115, 0x05);
|
|
/* set y position */
|
|
au0828_writereg(d, 0x112, 0x00);
|
|
au0828_writereg(d, 0x113, 0x00);
|
|
au0828_writereg(d, 0x116, 0xf2);
|
|
au0828_writereg(d, 0x117, 0x00);
|
|
au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int au0828_analog_stream_disable(struct au0828_dev *d)
|
|
{
|
|
dprintk(1, "au0828_analog_stream_disable called\n");
|
|
au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
|
|
return 0;
|
|
}
|
|
|
|
void au0828_analog_stream_reset(struct au0828_dev *dev)
|
|
{
|
|
dprintk(1, "au0828_analog_stream_reset called\n");
|
|
au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
|
|
mdelay(30);
|
|
au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
|
|
}
|
|
|
|
/*
|
|
* Some operations needs to stop current streaming
|
|
*/
|
|
static int au0828_stream_interrupt(struct au0828_dev *dev)
|
|
{
|
|
int ret = 0;
|
|
|
|
dev->stream_state = STREAM_INTERRUPT;
|
|
if (dev->dev_state == DEV_DISCONNECTED)
|
|
return -ENODEV;
|
|
else if (ret) {
|
|
dev->dev_state = DEV_MISCONFIGURED;
|
|
dprintk(1, "%s device is misconfigured!\n", __func__);
|
|
return ret;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* au0828_release_resources
|
|
* unregister v4l2 devices
|
|
*/
|
|
void au0828_analog_unregister(struct au0828_dev *dev)
|
|
{
|
|
dprintk(1, "au0828_release_resources called\n");
|
|
mutex_lock(&au0828_sysfs_lock);
|
|
|
|
if (dev->vdev)
|
|
video_unregister_device(dev->vdev);
|
|
if (dev->vbi_dev)
|
|
video_unregister_device(dev->vbi_dev);
|
|
|
|
mutex_unlock(&au0828_sysfs_lock);
|
|
}
|
|
|
|
|
|
/* Usage lock check functions */
|
|
static int res_get(struct au0828_fh *fh, unsigned int bit)
|
|
{
|
|
struct au0828_dev *dev = fh->dev;
|
|
|
|
if (fh->resources & bit)
|
|
/* have it already allocated */
|
|
return 1;
|
|
|
|
/* is it free? */
|
|
mutex_lock(&dev->lock);
|
|
if (dev->resources & bit) {
|
|
/* no, someone else uses it */
|
|
mutex_unlock(&dev->lock);
|
|
return 0;
|
|
}
|
|
/* it's free, grab it */
|
|
fh->resources |= bit;
|
|
dev->resources |= bit;
|
|
dprintk(1, "res: get %d\n", bit);
|
|
mutex_unlock(&dev->lock);
|
|
return 1;
|
|
}
|
|
|
|
static int res_check(struct au0828_fh *fh, unsigned int bit)
|
|
{
|
|
return fh->resources & bit;
|
|
}
|
|
|
|
static int res_locked(struct au0828_dev *dev, unsigned int bit)
|
|
{
|
|
return dev->resources & bit;
|
|
}
|
|
|
|
static void res_free(struct au0828_fh *fh, unsigned int bits)
|
|
{
|
|
struct au0828_dev *dev = fh->dev;
|
|
|
|
BUG_ON((fh->resources & bits) != bits);
|
|
|
|
mutex_lock(&dev->lock);
|
|
fh->resources &= ~bits;
|
|
dev->resources &= ~bits;
|
|
dprintk(1, "res: put %d\n", bits);
|
|
mutex_unlock(&dev->lock);
|
|
}
|
|
|
|
static int get_ressource(struct au0828_fh *fh)
|
|
{
|
|
switch (fh->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
return AU0828_RESOURCE_VIDEO;
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
|
return AU0828_RESOURCE_VBI;
|
|
default:
|
|
BUG();
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* This function ensures that video frames continue to be delivered even if
|
|
the ITU-656 input isn't receiving any data (thereby preventing applications
|
|
such as tvtime from hanging) */
|
|
void au0828_vid_buffer_timeout(unsigned long data)
|
|
{
|
|
struct au0828_dev *dev = (struct au0828_dev *) data;
|
|
struct au0828_dmaqueue *dma_q = &dev->vidq;
|
|
struct au0828_buffer *buf;
|
|
unsigned char *vid_data;
|
|
unsigned long flags = 0;
|
|
|
|
spin_lock_irqsave(&dev->slock, flags);
|
|
|
|
buf = dev->isoc_ctl.buf;
|
|
if (buf != NULL) {
|
|
vid_data = videobuf_to_vmalloc(&buf->vb);
|
|
memset(vid_data, 0x00, buf->vb.size); /* Blank green frame */
|
|
buffer_filled(dev, dma_q, buf);
|
|
}
|
|
get_next_buf(dma_q, &buf);
|
|
|
|
if (dev->vid_timeout_running == 1)
|
|
mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
|
|
|
|
spin_unlock_irqrestore(&dev->slock, flags);
|
|
}
|
|
|
|
void au0828_vbi_buffer_timeout(unsigned long data)
|
|
{
|
|
struct au0828_dev *dev = (struct au0828_dev *) data;
|
|
struct au0828_dmaqueue *dma_q = &dev->vbiq;
|
|
struct au0828_buffer *buf;
|
|
unsigned char *vbi_data;
|
|
unsigned long flags = 0;
|
|
|
|
spin_lock_irqsave(&dev->slock, flags);
|
|
|
|
buf = dev->isoc_ctl.vbi_buf;
|
|
if (buf != NULL) {
|
|
vbi_data = videobuf_to_vmalloc(&buf->vb);
|
|
memset(vbi_data, 0x00, buf->vb.size);
|
|
vbi_buffer_filled(dev, dma_q, buf);
|
|
}
|
|
vbi_get_next_buf(dma_q, &buf);
|
|
|
|
if (dev->vbi_timeout_running == 1)
|
|
mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
|
|
spin_unlock_irqrestore(&dev->slock, flags);
|
|
}
|
|
|
|
|
|
static int au0828_v4l2_open(struct file *filp)
|
|
{
|
|
int ret = 0;
|
|
struct video_device *vdev = video_devdata(filp);
|
|
struct au0828_dev *dev = video_drvdata(filp);
|
|
struct au0828_fh *fh;
|
|
int type;
|
|
|
|
switch (vdev->vfl_type) {
|
|
case VFL_TYPE_GRABBER:
|
|
type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
break;
|
|
case VFL_TYPE_VBI:
|
|
type = V4L2_BUF_TYPE_VBI_CAPTURE;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
fh = kzalloc(sizeof(struct au0828_fh), GFP_KERNEL);
|
|
if (NULL == fh) {
|
|
dprintk(1, "Failed allocate au0828_fh struct!\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
fh->type = type;
|
|
fh->dev = dev;
|
|
filp->private_data = fh;
|
|
|
|
if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
|
|
/* set au0828 interface0 to AS5 here again */
|
|
ret = usb_set_interface(dev->usbdev, 0, 5);
|
|
if (ret < 0) {
|
|
printk(KERN_INFO "Au0828 can't set alternate to 5!\n");
|
|
return -EBUSY;
|
|
}
|
|
dev->width = NTSC_STD_W;
|
|
dev->height = NTSC_STD_H;
|
|
dev->frame_size = dev->width * dev->height * 2;
|
|
dev->field_size = dev->width * dev->height;
|
|
dev->bytesperline = dev->width * 2;
|
|
|
|
au0828_analog_stream_enable(dev);
|
|
au0828_analog_stream_reset(dev);
|
|
|
|
/* If we were doing ac97 instead of i2s, it would go here...*/
|
|
au0828_i2s_init(dev);
|
|
|
|
dev->stream_state = STREAM_OFF;
|
|
dev->dev_state |= DEV_INITIALIZED;
|
|
}
|
|
|
|
dev->users++;
|
|
|
|
videobuf_queue_vmalloc_init(&fh->vb_vidq, &au0828_video_qops,
|
|
NULL, &dev->slock,
|
|
V4L2_BUF_TYPE_VIDEO_CAPTURE,
|
|
V4L2_FIELD_INTERLACED,
|
|
sizeof(struct au0828_buffer), fh, NULL);
|
|
|
|
/* VBI Setup */
|
|
dev->vbi_width = 720;
|
|
dev->vbi_height = 1;
|
|
videobuf_queue_vmalloc_init(&fh->vb_vbiq, &au0828_vbi_qops,
|
|
NULL, &dev->slock,
|
|
V4L2_BUF_TYPE_VBI_CAPTURE,
|
|
V4L2_FIELD_SEQ_TB,
|
|
sizeof(struct au0828_buffer), fh, NULL);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int au0828_v4l2_close(struct file *filp)
|
|
{
|
|
int ret;
|
|
struct au0828_fh *fh = filp->private_data;
|
|
struct au0828_dev *dev = fh->dev;
|
|
|
|
if (res_check(fh, AU0828_RESOURCE_VIDEO)) {
|
|
/* Cancel timeout thread in case they didn't call streamoff */
|
|
dev->vid_timeout_running = 0;
|
|
del_timer_sync(&dev->vid_timeout);
|
|
|
|
videobuf_stop(&fh->vb_vidq);
|
|
res_free(fh, AU0828_RESOURCE_VIDEO);
|
|
}
|
|
|
|
if (res_check(fh, AU0828_RESOURCE_VBI)) {
|
|
/* Cancel timeout thread in case they didn't call streamoff */
|
|
dev->vbi_timeout_running = 0;
|
|
del_timer_sync(&dev->vbi_timeout);
|
|
|
|
videobuf_stop(&fh->vb_vbiq);
|
|
res_free(fh, AU0828_RESOURCE_VBI);
|
|
}
|
|
|
|
if (dev->users == 1) {
|
|
if (dev->dev_state & DEV_DISCONNECTED) {
|
|
au0828_analog_unregister(dev);
|
|
kfree(dev);
|
|
return 0;
|
|
}
|
|
|
|
au0828_analog_stream_disable(dev);
|
|
|
|
au0828_uninit_isoc(dev);
|
|
|
|
/* Save some power by putting tuner to sleep */
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0);
|
|
|
|
/* When close the device, set the usb intf0 into alt0 to free
|
|
USB bandwidth */
|
|
ret = usb_set_interface(dev->usbdev, 0, 0);
|
|
if (ret < 0)
|
|
printk(KERN_INFO "Au0828 can't set alternate to 0!\n");
|
|
}
|
|
|
|
videobuf_mmap_free(&fh->vb_vidq);
|
|
videobuf_mmap_free(&fh->vb_vbiq);
|
|
kfree(fh);
|
|
dev->users--;
|
|
wake_up_interruptible_nr(&dev->open, 1);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t au0828_v4l2_read(struct file *filp, char __user *buf,
|
|
size_t count, loff_t *pos)
|
|
{
|
|
struct au0828_fh *fh = filp->private_data;
|
|
struct au0828_dev *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
|
if (res_locked(dev, AU0828_RESOURCE_VIDEO))
|
|
return -EBUSY;
|
|
|
|
return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
|
|
filp->f_flags & O_NONBLOCK);
|
|
}
|
|
|
|
if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
|
|
if (!res_get(fh, AU0828_RESOURCE_VBI))
|
|
return -EBUSY;
|
|
|
|
if (dev->vbi_timeout_running == 0) {
|
|
/* Handle case where caller tries to read without
|
|
calling streamon first */
|
|
dev->vbi_timeout_running = 1;
|
|
mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
|
|
}
|
|
|
|
return videobuf_read_stream(&fh->vb_vbiq, buf, count, pos, 0,
|
|
filp->f_flags & O_NONBLOCK);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static unsigned int au0828_v4l2_poll(struct file *filp, poll_table *wait)
|
|
{
|
|
struct au0828_fh *fh = filp->private_data;
|
|
struct au0828_dev *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
|
if (!res_get(fh, AU0828_RESOURCE_VIDEO))
|
|
return POLLERR;
|
|
return videobuf_poll_stream(filp, &fh->vb_vidq, wait);
|
|
} else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
|
|
if (!res_get(fh, AU0828_RESOURCE_VBI))
|
|
return POLLERR;
|
|
return videobuf_poll_stream(filp, &fh->vb_vbiq, wait);
|
|
} else {
|
|
return POLLERR;
|
|
}
|
|
}
|
|
|
|
static int au0828_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
|
|
{
|
|
struct au0828_fh *fh = filp->private_data;
|
|
struct au0828_dev *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
|
|
else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
|
|
rc = videobuf_mmap_mapper(&fh->vb_vbiq, vma);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
|
|
struct v4l2_format *format)
|
|
{
|
|
int ret;
|
|
int width = format->fmt.pix.width;
|
|
int height = format->fmt.pix.height;
|
|
unsigned int maxwidth, maxheight;
|
|
|
|
maxwidth = 720;
|
|
maxheight = 480;
|
|
|
|
if (format->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
|
|
/* If they are demanding a format other than the one we support,
|
|
bail out (tvtime asks for UYVY and then retries with YUYV) */
|
|
if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
|
|
return -EINVAL;
|
|
|
|
/* format->fmt.pix.width only support 720 and height 480 */
|
|
if (width != 720)
|
|
width = 720;
|
|
if (height != 480)
|
|
height = 480;
|
|
|
|
format->fmt.pix.width = width;
|
|
format->fmt.pix.height = height;
|
|
format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
|
|
format->fmt.pix.bytesperline = width * 2;
|
|
format->fmt.pix.sizeimage = width * height * 2;
|
|
format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
|
|
format->fmt.pix.field = V4L2_FIELD_INTERLACED;
|
|
|
|
if (cmd == VIDIOC_TRY_FMT)
|
|
return 0;
|
|
|
|
/* maybe set new image format, driver current only support 720*480 */
|
|
dev->width = width;
|
|
dev->height = height;
|
|
dev->frame_size = width * height * 2;
|
|
dev->field_size = width * height;
|
|
dev->bytesperline = width * 2;
|
|
|
|
if (dev->stream_state == STREAM_ON) {
|
|
dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
|
|
ret = au0828_stream_interrupt(dev);
|
|
if (ret != 0) {
|
|
dprintk(1, "error interrupting video stream!\n");
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
/* set au0828 interface0 to AS5 here again */
|
|
ret = usb_set_interface(dev->usbdev, 0, 5);
|
|
if (ret < 0) {
|
|
printk(KERN_INFO "Au0828 can't set alt setting to 5!\n");
|
|
return -EBUSY;
|
|
}
|
|
|
|
au0828_analog_stream_enable(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int vidioc_queryctrl(struct file *file, void *priv,
|
|
struct v4l2_queryctrl *qc)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, core, queryctrl, qc);
|
|
if (qc->type)
|
|
return 0;
|
|
else
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int vidioc_querycap(struct file *file, void *priv,
|
|
struct v4l2_capability *cap)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
|
|
strlcpy(cap->driver, "au0828", sizeof(cap->driver));
|
|
strlcpy(cap->card, dev->board.name, sizeof(cap->card));
|
|
strlcpy(cap->bus_info, dev->v4l2_dev.name, sizeof(cap->bus_info));
|
|
|
|
cap->version = AU0828_VERSION_CODE;
|
|
|
|
/*set the device capabilities */
|
|
cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
|
|
V4L2_CAP_VBI_CAPTURE |
|
|
V4L2_CAP_AUDIO |
|
|
V4L2_CAP_READWRITE |
|
|
V4L2_CAP_STREAMING |
|
|
V4L2_CAP_TUNER;
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_fmtdesc *f)
|
|
{
|
|
if (f->index)
|
|
return -EINVAL;
|
|
|
|
f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
strcpy(f->description, "Packed YUV2");
|
|
|
|
f->flags = 0;
|
|
f->pixelformat = V4L2_PIX_FMT_UYVY;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
|
|
f->fmt.pix.width = dev->width;
|
|
f->fmt.pix.height = dev->height;
|
|
f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
|
|
f->fmt.pix.bytesperline = dev->bytesperline;
|
|
f->fmt.pix.sizeimage = dev->frame_size;
|
|
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
|
|
f->fmt.pix.field = V4L2_FIELD_INTERLACED;
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
|
|
return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
|
|
}
|
|
|
|
static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
if (videobuf_queue_is_busy(&fh->vb_vidq)) {
|
|
printk(KERN_INFO "%s queue busy\n", __func__);
|
|
rc = -EBUSY;
|
|
goto out;
|
|
}
|
|
|
|
rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
|
|
out:
|
|
mutex_unlock(&dev->lock);
|
|
return rc;
|
|
}
|
|
|
|
static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id * norm)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
|
|
/* FIXME: when we support something other than NTSC, we are going to
|
|
have to make the au0828 bridge adjust the size of its capture
|
|
buffer, which is currently hardcoded at 720x480 */
|
|
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, *norm);
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_enum_input(struct file *file, void *priv,
|
|
struct v4l2_input *input)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
unsigned int tmp;
|
|
|
|
static const char *inames[] = {
|
|
[AU0828_VMUX_UNDEFINED] = "Undefined",
|
|
[AU0828_VMUX_COMPOSITE] = "Composite",
|
|
[AU0828_VMUX_SVIDEO] = "S-Video",
|
|
[AU0828_VMUX_CABLE] = "Cable TV",
|
|
[AU0828_VMUX_TELEVISION] = "Television",
|
|
[AU0828_VMUX_DVB] = "DVB",
|
|
[AU0828_VMUX_DEBUG] = "tv debug"
|
|
};
|
|
|
|
tmp = input->index;
|
|
|
|
if (tmp >= AU0828_MAX_INPUT)
|
|
return -EINVAL;
|
|
if (AUVI_INPUT(tmp).type == 0)
|
|
return -EINVAL;
|
|
|
|
input->index = tmp;
|
|
strcpy(input->name, inames[AUVI_INPUT(tmp).type]);
|
|
if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
|
|
(AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE))
|
|
input->type |= V4L2_INPUT_TYPE_TUNER;
|
|
else
|
|
input->type |= V4L2_INPUT_TYPE_CAMERA;
|
|
|
|
input->std = dev->vdev->tvnorms;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
*i = dev->ctrl_input;
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
int i;
|
|
|
|
dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
|
|
index);
|
|
if (index >= AU0828_MAX_INPUT)
|
|
return -EINVAL;
|
|
if (AUVI_INPUT(index).type == 0)
|
|
return -EINVAL;
|
|
dev->ctrl_input = index;
|
|
|
|
switch (AUVI_INPUT(index).type) {
|
|
case AU0828_VMUX_SVIDEO:
|
|
dev->input_type = AU0828_VMUX_SVIDEO;
|
|
break;
|
|
case AU0828_VMUX_COMPOSITE:
|
|
dev->input_type = AU0828_VMUX_COMPOSITE;
|
|
break;
|
|
case AU0828_VMUX_TELEVISION:
|
|
dev->input_type = AU0828_VMUX_TELEVISION;
|
|
break;
|
|
default:
|
|
dprintk(1, "VIDIOC_S_INPUT unknown input type set [%d]\n",
|
|
AUVI_INPUT(index).type);
|
|
break;
|
|
}
|
|
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
|
|
AUVI_INPUT(index).vmux, 0, 0);
|
|
|
|
for (i = 0; i < AU0828_MAX_INPUT; i++) {
|
|
int enable = 0;
|
|
if (AUVI_INPUT(i).audio_setup == NULL)
|
|
continue;
|
|
|
|
if (i == index)
|
|
enable = 1;
|
|
else
|
|
enable = 0;
|
|
if (enable) {
|
|
(AUVI_INPUT(i).audio_setup)(dev, enable);
|
|
} else {
|
|
/* Make sure we leave it turned on if some
|
|
other input is routed to this callback */
|
|
if ((AUVI_INPUT(i).audio_setup) !=
|
|
((AUVI_INPUT(index).audio_setup))) {
|
|
(AUVI_INPUT(i).audio_setup)(dev, enable);
|
|
}
|
|
}
|
|
}
|
|
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
|
|
AUVI_INPUT(index).amux, 0, 0);
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
unsigned int index = a->index;
|
|
|
|
if (a->index > 1)
|
|
return -EINVAL;
|
|
|
|
index = dev->ctrl_ainput;
|
|
if (index == 0)
|
|
strcpy(a->name, "Television");
|
|
else
|
|
strcpy(a->name, "Line in");
|
|
|
|
a->capability = V4L2_AUDCAP_STEREO;
|
|
a->index = index;
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
if (a->index != dev->ctrl_ainput)
|
|
return -EINVAL;
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_ctrl(struct file *file, void *priv,
|
|
struct v4l2_control *ctrl)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_ctrl, ctrl);
|
|
return 0;
|
|
|
|
}
|
|
|
|
static int vidioc_s_ctrl(struct file *file, void *priv,
|
|
struct v4l2_control *ctrl)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_ctrl, ctrl);
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
|
|
if (t->index != 0)
|
|
return -EINVAL;
|
|
|
|
strcpy(t->name, "Auvitek tuner");
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_tuner(struct file *file, void *priv,
|
|
struct v4l2_tuner *t)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
|
|
if (t->index != 0)
|
|
return -EINVAL;
|
|
|
|
t->type = V4L2_TUNER_ANALOG_TV;
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
|
|
dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
|
|
t->afc);
|
|
return 0;
|
|
|
|
}
|
|
|
|
static int vidioc_g_frequency(struct file *file, void *priv,
|
|
struct v4l2_frequency *freq)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
|
|
freq->type = V4L2_TUNER_ANALOG_TV;
|
|
freq->frequency = dev->ctrl_freq;
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_frequency(struct file *file, void *priv,
|
|
struct v4l2_frequency *freq)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
|
|
if (freq->tuner != 0)
|
|
return -EINVAL;
|
|
if (freq->type != V4L2_TUNER_ANALOG_TV)
|
|
return -EINVAL;
|
|
|
|
dev->ctrl_freq = freq->frequency;
|
|
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
|
|
|
|
au0828_analog_stream_reset(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* RAW VBI ioctls */
|
|
|
|
static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
|
|
struct v4l2_format *format)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
|
|
format->fmt.vbi.samples_per_line = dev->vbi_width;
|
|
format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
|
|
format->fmt.vbi.offset = 0;
|
|
format->fmt.vbi.flags = 0;
|
|
format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
|
|
|
|
format->fmt.vbi.count[0] = dev->vbi_height;
|
|
format->fmt.vbi.count[1] = dev->vbi_height;
|
|
format->fmt.vbi.start[0] = 21;
|
|
format->fmt.vbi.start[1] = 284;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_chip_ident(struct file *file, void *priv,
|
|
struct v4l2_dbg_chip_ident *chip)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
chip->ident = V4L2_IDENT_NONE;
|
|
chip->revision = 0;
|
|
|
|
if (v4l2_chip_match_host(&chip->match)) {
|
|
chip->ident = V4L2_IDENT_AU0828;
|
|
return 0;
|
|
}
|
|
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_chip_ident, chip);
|
|
if (chip->ident == V4L2_IDENT_NONE)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_cropcap(struct file *file, void *priv,
|
|
struct v4l2_cropcap *cc)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
|
|
if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
|
|
cc->bounds.left = 0;
|
|
cc->bounds.top = 0;
|
|
cc->bounds.width = dev->width;
|
|
cc->bounds.height = dev->height;
|
|
|
|
cc->defrect = cc->bounds;
|
|
|
|
cc->pixelaspect.numerator = 54;
|
|
cc->pixelaspect.denominator = 59;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_streamon(struct file *file, void *priv,
|
|
enum v4l2_buf_type type)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
int rc = -EINVAL;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
if (unlikely(type != fh->type))
|
|
return -EINVAL;
|
|
|
|
dprintk(1, "vidioc_streamon fh=%p t=%d fh->res=%d dev->res=%d\n",
|
|
fh, type, fh->resources, dev->resources);
|
|
|
|
if (unlikely(!res_get(fh, get_ressource(fh))))
|
|
return -EBUSY;
|
|
|
|
if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
|
au0828_analog_stream_enable(dev);
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1);
|
|
}
|
|
|
|
if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
|
rc = videobuf_streamon(&fh->vb_vidq);
|
|
dev->vid_timeout_running = 1;
|
|
mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
|
|
} else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
|
|
rc = videobuf_streamon(&fh->vb_vbiq);
|
|
dev->vbi_timeout_running = 1;
|
|
mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int vidioc_streamoff(struct file *file, void *priv,
|
|
enum v4l2_buf_type type)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
int rc;
|
|
int i;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
|
|
fh->type != V4L2_BUF_TYPE_VBI_CAPTURE)
|
|
return -EINVAL;
|
|
if (type != fh->type)
|
|
return -EINVAL;
|
|
|
|
dprintk(1, "vidioc_streamoff fh=%p t=%d fh->res=%d dev->res=%d\n",
|
|
fh, type, fh->resources, dev->resources);
|
|
|
|
if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
|
dev->vid_timeout_running = 0;
|
|
del_timer_sync(&dev->vid_timeout);
|
|
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
|
|
rc = au0828_stream_interrupt(dev);
|
|
if (rc != 0)
|
|
return rc;
|
|
|
|
for (i = 0; i < AU0828_MAX_INPUT; i++) {
|
|
if (AUVI_INPUT(i).audio_setup == NULL)
|
|
continue;
|
|
(AUVI_INPUT(i).audio_setup)(dev, 0);
|
|
}
|
|
|
|
videobuf_streamoff(&fh->vb_vidq);
|
|
res_free(fh, AU0828_RESOURCE_VIDEO);
|
|
} else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
|
|
dev->vbi_timeout_running = 0;
|
|
del_timer_sync(&dev->vbi_timeout);
|
|
|
|
videobuf_streamoff(&fh->vb_vbiq);
|
|
res_free(fh, AU0828_RESOURCE_VBI);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
static int vidioc_g_register(struct file *file, void *priv,
|
|
struct v4l2_dbg_register *reg)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
|
|
switch (reg->match.type) {
|
|
case V4L2_CHIP_MATCH_I2C_DRIVER:
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg);
|
|
return 0;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static int vidioc_s_register(struct file *file, void *priv,
|
|
struct v4l2_dbg_register *reg)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
|
|
switch (reg->match.type) {
|
|
case V4L2_CHIP_MATCH_I2C_DRIVER:
|
|
v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg);
|
|
return 0;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int vidioc_reqbufs(struct file *file, void *priv,
|
|
struct v4l2_requestbuffers *rb)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
return videobuf_reqbufs(&fh->vb_vidq, rb);
|
|
}
|
|
|
|
static int vidioc_querybuf(struct file *file, void *priv,
|
|
struct v4l2_buffer *b)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
return videobuf_querybuf(&fh->vb_vidq, b);
|
|
}
|
|
|
|
static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
return videobuf_qbuf(&fh->vb_vidq, b);
|
|
}
|
|
|
|
static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
|
|
{
|
|
struct au0828_fh *fh = priv;
|
|
struct au0828_dev *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
/* Workaround for a bug in the au0828 hardware design that sometimes
|
|
results in the colorspace being inverted */
|
|
if (dev->greenscreen_detected == 1) {
|
|
dprintk(1, "Detected green frame. Resetting stream...\n");
|
|
au0828_analog_stream_reset(dev);
|
|
dev->greenscreen_detected = 0;
|
|
}
|
|
|
|
return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
|
|
}
|
|
|
|
static struct v4l2_file_operations au0828_v4l_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = au0828_v4l2_open,
|
|
.release = au0828_v4l2_close,
|
|
.read = au0828_v4l2_read,
|
|
.poll = au0828_v4l2_poll,
|
|
.mmap = au0828_v4l2_mmap,
|
|
.ioctl = video_ioctl2,
|
|
};
|
|
|
|
static const struct v4l2_ioctl_ops video_ioctl_ops = {
|
|
.vidioc_querycap = vidioc_querycap,
|
|
.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
|
|
.vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
|
|
.vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
|
|
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
|
|
.vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
|
|
.vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
|
|
.vidioc_g_audio = vidioc_g_audio,
|
|
.vidioc_s_audio = vidioc_s_audio,
|
|
.vidioc_cropcap = vidioc_cropcap,
|
|
.vidioc_reqbufs = vidioc_reqbufs,
|
|
.vidioc_querybuf = vidioc_querybuf,
|
|
.vidioc_qbuf = vidioc_qbuf,
|
|
.vidioc_dqbuf = vidioc_dqbuf,
|
|
.vidioc_s_std = vidioc_s_std,
|
|
.vidioc_enum_input = vidioc_enum_input,
|
|
.vidioc_g_input = vidioc_g_input,
|
|
.vidioc_s_input = vidioc_s_input,
|
|
.vidioc_queryctrl = vidioc_queryctrl,
|
|
.vidioc_g_ctrl = vidioc_g_ctrl,
|
|
.vidioc_s_ctrl = vidioc_s_ctrl,
|
|
.vidioc_streamon = vidioc_streamon,
|
|
.vidioc_streamoff = vidioc_streamoff,
|
|
.vidioc_g_tuner = vidioc_g_tuner,
|
|
.vidioc_s_tuner = vidioc_s_tuner,
|
|
.vidioc_g_frequency = vidioc_g_frequency,
|
|
.vidioc_s_frequency = vidioc_s_frequency,
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
.vidioc_g_register = vidioc_g_register,
|
|
.vidioc_s_register = vidioc_s_register,
|
|
#endif
|
|
.vidioc_g_chip_ident = vidioc_g_chip_ident,
|
|
};
|
|
|
|
static const struct video_device au0828_video_template = {
|
|
.fops = &au0828_v4l_fops,
|
|
.release = video_device_release,
|
|
.ioctl_ops = &video_ioctl_ops,
|
|
.tvnorms = V4L2_STD_NTSC_M,
|
|
.current_norm = V4L2_STD_NTSC_M,
|
|
};
|
|
|
|
/**************************************************************************/
|
|
|
|
int au0828_analog_register(struct au0828_dev *dev,
|
|
struct usb_interface *interface)
|
|
{
|
|
int retval = -ENOMEM;
|
|
struct usb_host_interface *iface_desc;
|
|
struct usb_endpoint_descriptor *endpoint;
|
|
int i;
|
|
|
|
dprintk(1, "au0828_analog_register called!\n");
|
|
|
|
/* set au0828 usb interface0 to as5 */
|
|
retval = usb_set_interface(dev->usbdev,
|
|
interface->cur_altsetting->desc.bInterfaceNumber, 5);
|
|
if (retval != 0) {
|
|
printk(KERN_INFO "Failure setting usb interface0 to as5\n");
|
|
return retval;
|
|
}
|
|
|
|
/* Figure out which endpoint has the isoc interface */
|
|
iface_desc = interface->cur_altsetting;
|
|
for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
|
|
endpoint = &iface_desc->endpoint[i].desc;
|
|
if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
|
|
== USB_DIR_IN) &&
|
|
((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
|
|
== USB_ENDPOINT_XFER_ISOC)) {
|
|
|
|
/* we find our isoc in endpoint */
|
|
u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
|
|
dev->max_pkt_size = (tmp & 0x07ff) *
|
|
(((tmp & 0x1800) >> 11) + 1);
|
|
dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
|
|
}
|
|
}
|
|
if (!(dev->isoc_in_endpointaddr)) {
|
|
printk(KERN_INFO "Could not locate isoc endpoint\n");
|
|
kfree(dev);
|
|
return -ENODEV;
|
|
}
|
|
|
|
init_waitqueue_head(&dev->open);
|
|
spin_lock_init(&dev->slock);
|
|
mutex_init(&dev->lock);
|
|
|
|
/* init video dma queues */
|
|
INIT_LIST_HEAD(&dev->vidq.active);
|
|
INIT_LIST_HEAD(&dev->vidq.queued);
|
|
INIT_LIST_HEAD(&dev->vbiq.active);
|
|
INIT_LIST_HEAD(&dev->vbiq.queued);
|
|
|
|
dev->vid_timeout.function = au0828_vid_buffer_timeout;
|
|
dev->vid_timeout.data = (unsigned long) dev;
|
|
init_timer(&dev->vid_timeout);
|
|
|
|
dev->vbi_timeout.function = au0828_vbi_buffer_timeout;
|
|
dev->vbi_timeout.data = (unsigned long) dev;
|
|
init_timer(&dev->vbi_timeout);
|
|
|
|
dev->width = NTSC_STD_W;
|
|
dev->height = NTSC_STD_H;
|
|
dev->field_size = dev->width * dev->height;
|
|
dev->frame_size = dev->field_size << 1;
|
|
dev->bytesperline = dev->width << 1;
|
|
dev->ctrl_ainput = 0;
|
|
|
|
/* allocate and fill v4l2 video struct */
|
|
dev->vdev = video_device_alloc();
|
|
if (NULL == dev->vdev) {
|
|
dprintk(1, "Can't allocate video_device.\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* allocate the VBI struct */
|
|
dev->vbi_dev = video_device_alloc();
|
|
if (NULL == dev->vbi_dev) {
|
|
dprintk(1, "Can't allocate vbi_device.\n");
|
|
kfree(dev->vdev);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* Fill the video capture device struct */
|
|
*dev->vdev = au0828_video_template;
|
|
dev->vdev->parent = &dev->usbdev->dev;
|
|
strcpy(dev->vdev->name, "au0828a video");
|
|
|
|
/* Setup the VBI device */
|
|
*dev->vbi_dev = au0828_video_template;
|
|
dev->vbi_dev->parent = &dev->usbdev->dev;
|
|
strcpy(dev->vbi_dev->name, "au0828a vbi");
|
|
|
|
/* Register the v4l2 device */
|
|
video_set_drvdata(dev->vdev, dev);
|
|
retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER, -1);
|
|
if (retval != 0) {
|
|
dprintk(1, "unable to register video device (error = %d).\n",
|
|
retval);
|
|
video_device_release(dev->vdev);
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* Register the vbi device */
|
|
video_set_drvdata(dev->vbi_dev, dev);
|
|
retval = video_register_device(dev->vbi_dev, VFL_TYPE_VBI, -1);
|
|
if (retval != 0) {
|
|
dprintk(1, "unable to register vbi device (error = %d).\n",
|
|
retval);
|
|
video_device_release(dev->vbi_dev);
|
|
video_device_release(dev->vdev);
|
|
return -ENODEV;
|
|
}
|
|
|
|
dprintk(1, "%s completed!\n", __func__);
|
|
|
|
return 0;
|
|
}
|
|
|