forked from Minki/linux
d66de790c7
This driver did not yet support struct v4l2_device, so add it. This make it possible to replace the deprecated parent field with the v4l2_dev field, allowing the eventual removal of the parent field. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
1379 lines
33 KiB
C
1379 lines
33 KiB
C
/*
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* Driver for the NXP SAA7164 PCIe bridge
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*
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* Copyright (c) 2010 Steven Toth <stoth@kernellabs.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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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*
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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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "saa7164.h"
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static struct saa7164_tvnorm saa7164_tvnorms[] = {
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{
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.name = "NTSC-M",
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.id = V4L2_STD_NTSC_M,
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}, {
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.name = "NTSC-JP",
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.id = V4L2_STD_NTSC_M_JP,
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}
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};
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static const u32 saa7164_v4l2_ctrls[] = {
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0
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};
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/* Take the encoder configuration from the port struct and
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* flush it to the hardware.
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*/
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static void saa7164_vbi_configure(struct saa7164_port *port)
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{
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struct saa7164_dev *dev = port->dev;
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dprintk(DBGLVL_VBI, "%s()\n", __func__);
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port->vbi_params.width = port->width;
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port->vbi_params.height = port->height;
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port->vbi_params.is_50hz =
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(port->encodernorm.id & V4L2_STD_625_50) != 0;
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/* Set up the DIF (enable it) for analog mode by default */
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saa7164_api_initialize_dif(port);
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/* Configure the correct video standard */
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#if 0
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saa7164_api_configure_dif(port, port->encodernorm.id);
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#endif
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#if 0
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/* Ensure the audio decoder is correct configured */
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saa7164_api_set_audio_std(port);
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#endif
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dprintk(DBGLVL_VBI, "%s() ends\n", __func__);
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}
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static int saa7164_vbi_buffers_dealloc(struct saa7164_port *port)
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{
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struct list_head *c, *n, *p, *q, *l, *v;
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struct saa7164_dev *dev = port->dev;
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struct saa7164_buffer *buf;
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struct saa7164_user_buffer *ubuf;
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/* Remove any allocated buffers */
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mutex_lock(&port->dmaqueue_lock);
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dprintk(DBGLVL_VBI, "%s(port=%d) dmaqueue\n", __func__, port->nr);
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list_for_each_safe(c, n, &port->dmaqueue.list) {
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buf = list_entry(c, struct saa7164_buffer, list);
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list_del(c);
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saa7164_buffer_dealloc(buf);
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}
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dprintk(DBGLVL_VBI, "%s(port=%d) used\n", __func__, port->nr);
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list_for_each_safe(p, q, &port->list_buf_used.list) {
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ubuf = list_entry(p, struct saa7164_user_buffer, list);
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list_del(p);
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saa7164_buffer_dealloc_user(ubuf);
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}
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dprintk(DBGLVL_VBI, "%s(port=%d) free\n", __func__, port->nr);
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list_for_each_safe(l, v, &port->list_buf_free.list) {
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ubuf = list_entry(l, struct saa7164_user_buffer, list);
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list_del(l);
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saa7164_buffer_dealloc_user(ubuf);
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}
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mutex_unlock(&port->dmaqueue_lock);
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dprintk(DBGLVL_VBI, "%s(port=%d) done\n", __func__, port->nr);
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return 0;
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}
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/* Dynamic buffer switch at vbi start time */
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static int saa7164_vbi_buffers_alloc(struct saa7164_port *port)
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{
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struct saa7164_dev *dev = port->dev;
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struct saa7164_buffer *buf;
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struct saa7164_user_buffer *ubuf;
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struct tmHWStreamParameters *params = &port->hw_streamingparams;
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int result = -ENODEV, i;
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int len = 0;
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dprintk(DBGLVL_VBI, "%s()\n", __func__);
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/* TODO: NTSC SPECIFIC */
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/* Init and establish defaults */
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params->samplesperline = 1440;
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params->numberoflines = 12;
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params->numberoflines = 18;
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params->pitch = 1600;
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params->pitch = 1440;
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params->numpagetables = 2 +
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((params->numberoflines * params->pitch) / PAGE_SIZE);
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params->bitspersample = 8;
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params->linethreshold = 0;
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params->pagetablelistvirt = NULL;
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params->pagetablelistphys = NULL;
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params->numpagetableentries = port->hwcfg.buffercount;
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/* Allocate the PCI resources, buffers (hard) */
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for (i = 0; i < port->hwcfg.buffercount; i++) {
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buf = saa7164_buffer_alloc(port,
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params->numberoflines *
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params->pitch);
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if (!buf) {
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printk(KERN_ERR "%s() failed "
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"(errno = %d), unable to allocate buffer\n",
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__func__, result);
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result = -ENOMEM;
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goto failed;
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} else {
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mutex_lock(&port->dmaqueue_lock);
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list_add_tail(&buf->list, &port->dmaqueue.list);
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mutex_unlock(&port->dmaqueue_lock);
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}
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}
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/* Allocate some kernel buffers for copying
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* to userpsace.
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*/
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len = params->numberoflines * params->pitch;
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if (vbi_buffers < 16)
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vbi_buffers = 16;
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if (vbi_buffers > 512)
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vbi_buffers = 512;
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for (i = 0; i < vbi_buffers; i++) {
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ubuf = saa7164_buffer_alloc_user(dev, len);
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if (ubuf) {
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mutex_lock(&port->dmaqueue_lock);
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list_add_tail(&ubuf->list, &port->list_buf_free.list);
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mutex_unlock(&port->dmaqueue_lock);
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}
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}
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result = 0;
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failed:
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return result;
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}
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static int saa7164_vbi_initialize(struct saa7164_port *port)
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{
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saa7164_vbi_configure(port);
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return 0;
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}
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/* -- V4L2 --------------------------------------------------------- */
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static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id id)
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{
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struct saa7164_vbi_fh *fh = file->private_data;
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struct saa7164_port *port = fh->port;
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struct saa7164_dev *dev = port->dev;
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unsigned int i;
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dprintk(DBGLVL_VBI, "%s(id=0x%x)\n", __func__, (u32)id);
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for (i = 0; i < ARRAY_SIZE(saa7164_tvnorms); i++) {
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if (id & saa7164_tvnorms[i].id)
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break;
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}
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if (i == ARRAY_SIZE(saa7164_tvnorms))
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return -EINVAL;
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port->encodernorm = saa7164_tvnorms[i];
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port->std = id;
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/* Update the audio decoder while is not running in
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* auto detect mode.
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*/
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saa7164_api_set_audio_std(port);
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dprintk(DBGLVL_VBI, "%s(id=0x%x) OK\n", __func__, (u32)id);
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return 0;
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}
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static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
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{
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struct saa7164_encoder_fh *fh = file->private_data;
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struct saa7164_port *port = fh->port;
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*id = port->std;
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return 0;
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}
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static int vidioc_enum_input(struct file *file, void *priv,
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struct v4l2_input *i)
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{
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int n;
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char *inputs[] = { "tuner", "composite", "svideo", "aux",
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"composite 2", "svideo 2", "aux 2" };
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if (i->index >= 7)
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return -EINVAL;
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strcpy(i->name, inputs[i->index]);
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if (i->index == 0)
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i->type = V4L2_INPUT_TYPE_TUNER;
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else
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i->type = V4L2_INPUT_TYPE_CAMERA;
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for (n = 0; n < ARRAY_SIZE(saa7164_tvnorms); n++)
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i->std |= saa7164_tvnorms[n].id;
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return 0;
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}
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static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
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{
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struct saa7164_vbi_fh *fh = file->private_data;
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struct saa7164_port *port = fh->port;
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struct saa7164_dev *dev = port->dev;
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if (saa7164_api_get_videomux(port) != SAA_OK)
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return -EIO;
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*i = (port->mux_input - 1);
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dprintk(DBGLVL_VBI, "%s() input=%d\n", __func__, *i);
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return 0;
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}
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static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
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{
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struct saa7164_vbi_fh *fh = file->private_data;
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struct saa7164_port *port = fh->port;
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struct saa7164_dev *dev = port->dev;
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dprintk(DBGLVL_VBI, "%s() input=%d\n", __func__, i);
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if (i >= 7)
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return -EINVAL;
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port->mux_input = i + 1;
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if (saa7164_api_set_videomux(port) != SAA_OK)
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return -EIO;
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return 0;
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}
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static int vidioc_g_tuner(struct file *file, void *priv,
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struct v4l2_tuner *t)
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{
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struct saa7164_vbi_fh *fh = file->private_data;
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struct saa7164_port *port = fh->port;
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struct saa7164_dev *dev = port->dev;
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if (0 != t->index)
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return -EINVAL;
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strcpy(t->name, "tuner");
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t->type = V4L2_TUNER_ANALOG_TV;
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t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO;
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dprintk(DBGLVL_VBI, "VIDIOC_G_TUNER: tuner type %d\n", t->type);
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return 0;
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}
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static int vidioc_s_tuner(struct file *file, void *priv,
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const struct v4l2_tuner *t)
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{
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/* Update the A/V core */
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return 0;
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}
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static int vidioc_g_frequency(struct file *file, void *priv,
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struct v4l2_frequency *f)
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{
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struct saa7164_vbi_fh *fh = file->private_data;
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struct saa7164_port *port = fh->port;
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f->type = V4L2_TUNER_ANALOG_TV;
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f->frequency = port->freq;
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return 0;
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}
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static int vidioc_s_frequency(struct file *file, void *priv,
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const struct v4l2_frequency *f)
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{
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struct saa7164_vbi_fh *fh = file->private_data;
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struct saa7164_port *port = fh->port;
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struct saa7164_dev *dev = port->dev;
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struct saa7164_port *tsport;
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struct dvb_frontend *fe;
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/* TODO: Pull this for the std */
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struct analog_parameters params = {
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.mode = V4L2_TUNER_ANALOG_TV,
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.audmode = V4L2_TUNER_MODE_STEREO,
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.std = port->encodernorm.id,
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.frequency = f->frequency
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};
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/* Stop the encoder */
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dprintk(DBGLVL_VBI, "%s() frequency=%d tuner=%d\n", __func__,
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f->frequency, f->tuner);
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if (f->tuner != 0)
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return -EINVAL;
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if (f->type != V4L2_TUNER_ANALOG_TV)
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return -EINVAL;
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port->freq = f->frequency;
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/* Update the hardware */
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if (port->nr == SAA7164_PORT_VBI1)
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tsport = &dev->ports[SAA7164_PORT_TS1];
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else
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if (port->nr == SAA7164_PORT_VBI2)
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tsport = &dev->ports[SAA7164_PORT_TS2];
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else
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BUG();
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fe = tsport->dvb.frontend;
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if (fe && fe->ops.tuner_ops.set_analog_params)
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fe->ops.tuner_ops.set_analog_params(fe, ¶ms);
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else
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printk(KERN_ERR "%s() No analog tuner, aborting\n", __func__);
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saa7164_vbi_initialize(port);
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return 0;
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}
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static int vidioc_g_ctrl(struct file *file, void *priv,
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struct v4l2_control *ctl)
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{
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struct saa7164_vbi_fh *fh = file->private_data;
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struct saa7164_port *port = fh->port;
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struct saa7164_dev *dev = port->dev;
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dprintk(DBGLVL_VBI, "%s(id=%d, value=%d)\n", __func__,
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ctl->id, ctl->value);
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switch (ctl->id) {
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case V4L2_CID_BRIGHTNESS:
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ctl->value = port->ctl_brightness;
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break;
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case V4L2_CID_CONTRAST:
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ctl->value = port->ctl_contrast;
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break;
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case V4L2_CID_SATURATION:
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ctl->value = port->ctl_saturation;
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break;
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case V4L2_CID_HUE:
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ctl->value = port->ctl_hue;
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break;
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case V4L2_CID_SHARPNESS:
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ctl->value = port->ctl_sharpness;
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break;
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case V4L2_CID_AUDIO_VOLUME:
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ctl->value = port->ctl_volume;
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int vidioc_s_ctrl(struct file *file, void *priv,
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struct v4l2_control *ctl)
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{
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struct saa7164_vbi_fh *fh = file->private_data;
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struct saa7164_port *port = fh->port;
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struct saa7164_dev *dev = port->dev;
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int ret = 0;
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dprintk(DBGLVL_VBI, "%s(id=%d, value=%d)\n", __func__,
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ctl->id, ctl->value);
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switch (ctl->id) {
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case V4L2_CID_BRIGHTNESS:
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if ((ctl->value >= 0) && (ctl->value <= 255)) {
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port->ctl_brightness = ctl->value;
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saa7164_api_set_usercontrol(port,
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PU_BRIGHTNESS_CONTROL);
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} else
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ret = -EINVAL;
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break;
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case V4L2_CID_CONTRAST:
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if ((ctl->value >= 0) && (ctl->value <= 255)) {
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port->ctl_contrast = ctl->value;
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saa7164_api_set_usercontrol(port, PU_CONTRAST_CONTROL);
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} else
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ret = -EINVAL;
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break;
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case V4L2_CID_SATURATION:
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if ((ctl->value >= 0) && (ctl->value <= 255)) {
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port->ctl_saturation = ctl->value;
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saa7164_api_set_usercontrol(port,
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PU_SATURATION_CONTROL);
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} else
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ret = -EINVAL;
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break;
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case V4L2_CID_HUE:
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if ((ctl->value >= 0) && (ctl->value <= 255)) {
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port->ctl_hue = ctl->value;
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saa7164_api_set_usercontrol(port, PU_HUE_CONTROL);
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} else
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ret = -EINVAL;
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break;
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case V4L2_CID_SHARPNESS:
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if ((ctl->value >= 0) && (ctl->value <= 255)) {
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port->ctl_sharpness = ctl->value;
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saa7164_api_set_usercontrol(port, PU_SHARPNESS_CONTROL);
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} else
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ret = -EINVAL;
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break;
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case V4L2_CID_AUDIO_VOLUME:
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if ((ctl->value >= -83) && (ctl->value <= 24)) {
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port->ctl_volume = ctl->value;
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saa7164_api_set_audio_volume(port, port->ctl_volume);
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} else
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ret = -EINVAL;
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break;
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default:
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ret = -EINVAL;
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}
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return ret;
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}
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|
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static int saa7164_get_ctrl(struct saa7164_port *port,
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struct v4l2_ext_control *ctrl)
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{
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struct saa7164_vbi_params *params = &port->vbi_params;
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switch (ctrl->id) {
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case V4L2_CID_MPEG_STREAM_TYPE:
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ctrl->value = params->stream_type;
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break;
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case V4L2_CID_MPEG_AUDIO_MUTE:
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ctrl->value = params->ctl_mute;
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break;
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case V4L2_CID_MPEG_VIDEO_ASPECT:
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ctrl->value = params->ctl_aspect;
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break;
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case V4L2_CID_MPEG_VIDEO_B_FRAMES:
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ctrl->value = params->refdist;
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break;
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case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
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ctrl->value = params->gop_size;
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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|
|
static int vidioc_g_ext_ctrls(struct file *file, void *priv,
|
|
struct v4l2_ext_controls *ctrls)
|
|
{
|
|
struct saa7164_vbi_fh *fh = file->private_data;
|
|
struct saa7164_port *port = fh->port;
|
|
int i, err = 0;
|
|
|
|
if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
|
|
for (i = 0; i < ctrls->count; i++) {
|
|
struct v4l2_ext_control *ctrl = ctrls->controls + i;
|
|
|
|
err = saa7164_get_ctrl(port, ctrl);
|
|
if (err) {
|
|
ctrls->error_idx = i;
|
|
break;
|
|
}
|
|
}
|
|
return err;
|
|
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int saa7164_try_ctrl(struct v4l2_ext_control *ctrl, int ac3)
|
|
{
|
|
int ret = -EINVAL;
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_MPEG_STREAM_TYPE:
|
|
if ((ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_PS) ||
|
|
(ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_TS))
|
|
ret = 0;
|
|
break;
|
|
case V4L2_CID_MPEG_AUDIO_MUTE:
|
|
if ((ctrl->value >= 0) &&
|
|
(ctrl->value <= 1))
|
|
ret = 0;
|
|
break;
|
|
case V4L2_CID_MPEG_VIDEO_ASPECT:
|
|
if ((ctrl->value >= V4L2_MPEG_VIDEO_ASPECT_1x1) &&
|
|
(ctrl->value <= V4L2_MPEG_VIDEO_ASPECT_221x100))
|
|
ret = 0;
|
|
break;
|
|
case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
|
|
if ((ctrl->value >= 0) &&
|
|
(ctrl->value <= 255))
|
|
ret = 0;
|
|
break;
|
|
case V4L2_CID_MPEG_VIDEO_B_FRAMES:
|
|
if ((ctrl->value >= 1) &&
|
|
(ctrl->value <= 3))
|
|
ret = 0;
|
|
break;
|
|
default:
|
|
ret = -EINVAL;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int vidioc_try_ext_ctrls(struct file *file, void *priv,
|
|
struct v4l2_ext_controls *ctrls)
|
|
{
|
|
int i, err = 0;
|
|
|
|
if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
|
|
for (i = 0; i < ctrls->count; i++) {
|
|
struct v4l2_ext_control *ctrl = ctrls->controls + i;
|
|
|
|
err = saa7164_try_ctrl(ctrl, 0);
|
|
if (err) {
|
|
ctrls->error_idx = i;
|
|
break;
|
|
}
|
|
}
|
|
return err;
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int saa7164_set_ctrl(struct saa7164_port *port,
|
|
struct v4l2_ext_control *ctrl)
|
|
{
|
|
struct saa7164_vbi_params *params = &port->vbi_params;
|
|
int ret = 0;
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_MPEG_STREAM_TYPE:
|
|
params->stream_type = ctrl->value;
|
|
break;
|
|
case V4L2_CID_MPEG_AUDIO_MUTE:
|
|
params->ctl_mute = ctrl->value;
|
|
ret = saa7164_api_audio_mute(port, params->ctl_mute);
|
|
if (ret != SAA_OK) {
|
|
printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__,
|
|
ret);
|
|
ret = -EIO;
|
|
}
|
|
break;
|
|
case V4L2_CID_MPEG_VIDEO_ASPECT:
|
|
params->ctl_aspect = ctrl->value;
|
|
ret = saa7164_api_set_aspect_ratio(port);
|
|
if (ret != SAA_OK) {
|
|
printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__,
|
|
ret);
|
|
ret = -EIO;
|
|
}
|
|
break;
|
|
case V4L2_CID_MPEG_VIDEO_B_FRAMES:
|
|
params->refdist = ctrl->value;
|
|
break;
|
|
case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
|
|
params->gop_size = ctrl->value;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* TODO: Update the hardware */
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int vidioc_s_ext_ctrls(struct file *file, void *priv,
|
|
struct v4l2_ext_controls *ctrls)
|
|
{
|
|
struct saa7164_vbi_fh *fh = file->private_data;
|
|
struct saa7164_port *port = fh->port;
|
|
int i, err = 0;
|
|
|
|
if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
|
|
for (i = 0; i < ctrls->count; i++) {
|
|
struct v4l2_ext_control *ctrl = ctrls->controls + i;
|
|
|
|
err = saa7164_try_ctrl(ctrl, 0);
|
|
if (err) {
|
|
ctrls->error_idx = i;
|
|
break;
|
|
}
|
|
err = saa7164_set_ctrl(port, ctrl);
|
|
if (err) {
|
|
ctrls->error_idx = i;
|
|
break;
|
|
}
|
|
}
|
|
return err;
|
|
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int vidioc_querycap(struct file *file, void *priv,
|
|
struct v4l2_capability *cap)
|
|
{
|
|
struct saa7164_vbi_fh *fh = file->private_data;
|
|
struct saa7164_port *port = fh->port;
|
|
struct saa7164_dev *dev = port->dev;
|
|
|
|
strcpy(cap->driver, dev->name);
|
|
strlcpy(cap->card, saa7164_boards[dev->board].name,
|
|
sizeof(cap->card));
|
|
sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
|
|
|
|
cap->capabilities =
|
|
V4L2_CAP_VBI_CAPTURE |
|
|
V4L2_CAP_READWRITE |
|
|
0;
|
|
|
|
cap->capabilities |= V4L2_CAP_TUNER;
|
|
cap->version = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_fmtdesc *f)
|
|
{
|
|
if (f->index != 0)
|
|
return -EINVAL;
|
|
|
|
strlcpy(f->description, "VBI", sizeof(f->description));
|
|
f->pixelformat = V4L2_PIX_FMT_MPEG;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct saa7164_vbi_fh *fh = file->private_data;
|
|
struct saa7164_port *port = fh->port;
|
|
struct saa7164_dev *dev = port->dev;
|
|
|
|
f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
|
|
f->fmt.pix.bytesperline = 0;
|
|
f->fmt.pix.sizeimage =
|
|
port->ts_packet_size * port->ts_packet_count;
|
|
f->fmt.pix.colorspace = 0;
|
|
f->fmt.pix.width = port->width;
|
|
f->fmt.pix.height = port->height;
|
|
|
|
dprintk(DBGLVL_VBI, "VIDIOC_G_FMT: w: %d, h: %d\n",
|
|
port->width, port->height);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct saa7164_vbi_fh *fh = file->private_data;
|
|
struct saa7164_port *port = fh->port;
|
|
struct saa7164_dev *dev = port->dev;
|
|
|
|
f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
|
|
f->fmt.pix.bytesperline = 0;
|
|
f->fmt.pix.sizeimage =
|
|
port->ts_packet_size * port->ts_packet_count;
|
|
f->fmt.pix.colorspace = 0;
|
|
dprintk(DBGLVL_VBI, "VIDIOC_TRY_FMT: w: %d, h: %d\n",
|
|
port->width, port->height);
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct saa7164_vbi_fh *fh = file->private_data;
|
|
struct saa7164_port *port = fh->port;
|
|
struct saa7164_dev *dev = port->dev;
|
|
|
|
f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
|
|
f->fmt.pix.bytesperline = 0;
|
|
f->fmt.pix.sizeimage =
|
|
port->ts_packet_size * port->ts_packet_count;
|
|
f->fmt.pix.colorspace = 0;
|
|
|
|
dprintk(DBGLVL_VBI, "VIDIOC_S_FMT: w: %d, h: %d, f: %d\n",
|
|
f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.field);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fill_queryctrl(struct saa7164_vbi_params *params,
|
|
struct v4l2_queryctrl *c)
|
|
{
|
|
switch (c->id) {
|
|
case V4L2_CID_BRIGHTNESS:
|
|
return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 127);
|
|
case V4L2_CID_CONTRAST:
|
|
return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 66);
|
|
case V4L2_CID_SATURATION:
|
|
return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 62);
|
|
case V4L2_CID_HUE:
|
|
return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 128);
|
|
case V4L2_CID_SHARPNESS:
|
|
return v4l2_ctrl_query_fill(c, 0x0, 0x0f, 1, 8);
|
|
case V4L2_CID_MPEG_AUDIO_MUTE:
|
|
return v4l2_ctrl_query_fill(c, 0x0, 0x01, 1, 0);
|
|
case V4L2_CID_AUDIO_VOLUME:
|
|
return v4l2_ctrl_query_fill(c, -83, 24, 1, 20);
|
|
case V4L2_CID_MPEG_STREAM_TYPE:
|
|
return v4l2_ctrl_query_fill(c,
|
|
V4L2_MPEG_STREAM_TYPE_MPEG2_PS,
|
|
V4L2_MPEG_STREAM_TYPE_MPEG2_TS,
|
|
1, V4L2_MPEG_STREAM_TYPE_MPEG2_PS);
|
|
case V4L2_CID_MPEG_VIDEO_ASPECT:
|
|
return v4l2_ctrl_query_fill(c,
|
|
V4L2_MPEG_VIDEO_ASPECT_1x1,
|
|
V4L2_MPEG_VIDEO_ASPECT_221x100,
|
|
1, V4L2_MPEG_VIDEO_ASPECT_4x3);
|
|
case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
|
|
return v4l2_ctrl_query_fill(c, 1, 255, 1, 15);
|
|
case V4L2_CID_MPEG_VIDEO_B_FRAMES:
|
|
return v4l2_ctrl_query_fill(c,
|
|
1, 3, 1, 1);
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static int vidioc_queryctrl(struct file *file, void *priv,
|
|
struct v4l2_queryctrl *c)
|
|
{
|
|
struct saa7164_vbi_fh *fh = priv;
|
|
struct saa7164_port *port = fh->port;
|
|
int i, next;
|
|
u32 id = c->id;
|
|
|
|
memset(c, 0, sizeof(*c));
|
|
|
|
next = !!(id & V4L2_CTRL_FLAG_NEXT_CTRL);
|
|
c->id = id & ~V4L2_CTRL_FLAG_NEXT_CTRL;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(saa7164_v4l2_ctrls); i++) {
|
|
if (next) {
|
|
if (c->id < saa7164_v4l2_ctrls[i])
|
|
c->id = saa7164_v4l2_ctrls[i];
|
|
else
|
|
continue;
|
|
}
|
|
|
|
if (c->id == saa7164_v4l2_ctrls[i])
|
|
return fill_queryctrl(&port->vbi_params, c);
|
|
|
|
if (c->id < saa7164_v4l2_ctrls[i])
|
|
break;
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int saa7164_vbi_stop_port(struct saa7164_port *port)
|
|
{
|
|
struct saa7164_dev *dev = port->dev;
|
|
int ret;
|
|
|
|
ret = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
|
|
if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
|
|
printk(KERN_ERR "%s() stop transition failed, ret = 0x%x\n",
|
|
__func__, ret);
|
|
ret = -EIO;
|
|
} else {
|
|
dprintk(DBGLVL_VBI, "%s() Stopped\n", __func__);
|
|
ret = 0;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int saa7164_vbi_acquire_port(struct saa7164_port *port)
|
|
{
|
|
struct saa7164_dev *dev = port->dev;
|
|
int ret;
|
|
|
|
ret = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE);
|
|
if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
|
|
printk(KERN_ERR "%s() acquire transition failed, ret = 0x%x\n",
|
|
__func__, ret);
|
|
ret = -EIO;
|
|
} else {
|
|
dprintk(DBGLVL_VBI, "%s() Acquired\n", __func__);
|
|
ret = 0;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int saa7164_vbi_pause_port(struct saa7164_port *port)
|
|
{
|
|
struct saa7164_dev *dev = port->dev;
|
|
int ret;
|
|
|
|
ret = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE);
|
|
if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
|
|
printk(KERN_ERR "%s() pause transition failed, ret = 0x%x\n",
|
|
__func__, ret);
|
|
ret = -EIO;
|
|
} else {
|
|
dprintk(DBGLVL_VBI, "%s() Paused\n", __func__);
|
|
ret = 0;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Firmware is very windows centric, meaning you have to transition
|
|
* the part through AVStream / KS Windows stages, forwards or backwards.
|
|
* States are: stopped, acquired (h/w), paused, started.
|
|
* We have to leave here will all of the soft buffers on the free list,
|
|
* else the cfg_post() func won't have soft buffers to correctly configure.
|
|
*/
|
|
static int saa7164_vbi_stop_streaming(struct saa7164_port *port)
|
|
{
|
|
struct saa7164_dev *dev = port->dev;
|
|
struct saa7164_buffer *buf;
|
|
struct saa7164_user_buffer *ubuf;
|
|
struct list_head *c, *n;
|
|
int ret;
|
|
|
|
dprintk(DBGLVL_VBI, "%s(port=%d)\n", __func__, port->nr);
|
|
|
|
ret = saa7164_vbi_pause_port(port);
|
|
ret = saa7164_vbi_acquire_port(port);
|
|
ret = saa7164_vbi_stop_port(port);
|
|
|
|
dprintk(DBGLVL_VBI, "%s(port=%d) Hardware stopped\n", __func__,
|
|
port->nr);
|
|
|
|
/* Reset the state of any allocated buffer resources */
|
|
mutex_lock(&port->dmaqueue_lock);
|
|
|
|
/* Reset the hard and soft buffer state */
|
|
list_for_each_safe(c, n, &port->dmaqueue.list) {
|
|
buf = list_entry(c, struct saa7164_buffer, list);
|
|
buf->flags = SAA7164_BUFFER_FREE;
|
|
buf->pos = 0;
|
|
}
|
|
|
|
list_for_each_safe(c, n, &port->list_buf_used.list) {
|
|
ubuf = list_entry(c, struct saa7164_user_buffer, list);
|
|
ubuf->pos = 0;
|
|
list_move_tail(&ubuf->list, &port->list_buf_free.list);
|
|
}
|
|
|
|
mutex_unlock(&port->dmaqueue_lock);
|
|
|
|
/* Free any allocated resources */
|
|
saa7164_vbi_buffers_dealloc(port);
|
|
|
|
dprintk(DBGLVL_VBI, "%s(port=%d) Released\n", __func__, port->nr);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int saa7164_vbi_start_streaming(struct saa7164_port *port)
|
|
{
|
|
struct saa7164_dev *dev = port->dev;
|
|
int result, ret = 0;
|
|
|
|
dprintk(DBGLVL_VBI, "%s(port=%d)\n", __func__, port->nr);
|
|
|
|
port->done_first_interrupt = 0;
|
|
|
|
/* allocate all of the PCIe DMA buffer resources on the fly,
|
|
* allowing switching between TS and PS payloads without
|
|
* requiring a complete driver reload.
|
|
*/
|
|
saa7164_vbi_buffers_alloc(port);
|
|
|
|
/* Configure the encoder with any cache values */
|
|
#if 0
|
|
saa7164_api_set_encoder(port);
|
|
saa7164_api_get_encoder(port);
|
|
#endif
|
|
|
|
/* Place the empty buffers on the hardware */
|
|
saa7164_buffer_cfg_port(port);
|
|
|
|
/* Negotiate format */
|
|
if (saa7164_api_set_vbi_format(port) != SAA_OK) {
|
|
printk(KERN_ERR "%s() No supported VBI format\n", __func__);
|
|
ret = -EIO;
|
|
goto out;
|
|
}
|
|
|
|
/* Acquire the hardware */
|
|
result = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE);
|
|
if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
|
|
printk(KERN_ERR "%s() acquire transition failed, res = 0x%x\n",
|
|
__func__, result);
|
|
|
|
ret = -EIO;
|
|
goto out;
|
|
} else
|
|
dprintk(DBGLVL_VBI, "%s() Acquired\n", __func__);
|
|
|
|
/* Pause the hardware */
|
|
result = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE);
|
|
if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
|
|
printk(KERN_ERR "%s() pause transition failed, res = 0x%x\n",
|
|
__func__, result);
|
|
|
|
/* Stop the hardware, regardless */
|
|
result = saa7164_vbi_stop_port(port);
|
|
if (result != SAA_OK) {
|
|
printk(KERN_ERR "%s() pause/forced stop transition "
|
|
"failed, res = 0x%x\n", __func__, result);
|
|
}
|
|
|
|
ret = -EIO;
|
|
goto out;
|
|
} else
|
|
dprintk(DBGLVL_VBI, "%s() Paused\n", __func__);
|
|
|
|
/* Start the hardware */
|
|
result = saa7164_api_transition_port(port, SAA_DMASTATE_RUN);
|
|
if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
|
|
printk(KERN_ERR "%s() run transition failed, result = 0x%x\n",
|
|
__func__, result);
|
|
|
|
/* Stop the hardware, regardless */
|
|
result = saa7164_vbi_acquire_port(port);
|
|
result = saa7164_vbi_stop_port(port);
|
|
if (result != SAA_OK) {
|
|
printk(KERN_ERR "%s() run/forced stop transition "
|
|
"failed, res = 0x%x\n", __func__, result);
|
|
}
|
|
|
|
ret = -EIO;
|
|
} else
|
|
dprintk(DBGLVL_VBI, "%s() Running\n", __func__);
|
|
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
static int saa7164_vbi_fmt(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
/* ntsc */
|
|
f->fmt.vbi.samples_per_line = 1600;
|
|
f->fmt.vbi.samples_per_line = 1440;
|
|
f->fmt.vbi.sampling_rate = 27000000;
|
|
f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
|
|
f->fmt.vbi.offset = 0;
|
|
f->fmt.vbi.flags = 0;
|
|
f->fmt.vbi.start[0] = 10;
|
|
f->fmt.vbi.count[0] = 18;
|
|
f->fmt.vbi.start[1] = 263 + 10 + 1;
|
|
f->fmt.vbi.count[1] = 18;
|
|
return 0;
|
|
}
|
|
|
|
static int fops_open(struct file *file)
|
|
{
|
|
struct saa7164_dev *dev;
|
|
struct saa7164_port *port;
|
|
struct saa7164_vbi_fh *fh;
|
|
|
|
port = (struct saa7164_port *)video_get_drvdata(video_devdata(file));
|
|
if (!port)
|
|
return -ENODEV;
|
|
|
|
dev = port->dev;
|
|
|
|
dprintk(DBGLVL_VBI, "%s()\n", __func__);
|
|
|
|
/* allocate + initialize per filehandle data */
|
|
fh = kzalloc(sizeof(*fh), GFP_KERNEL);
|
|
if (NULL == fh)
|
|
return -ENOMEM;
|
|
|
|
file->private_data = fh;
|
|
fh->port = port;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fops_release(struct file *file)
|
|
{
|
|
struct saa7164_vbi_fh *fh = file->private_data;
|
|
struct saa7164_port *port = fh->port;
|
|
struct saa7164_dev *dev = port->dev;
|
|
|
|
dprintk(DBGLVL_VBI, "%s()\n", __func__);
|
|
|
|
/* Shut device down on last close */
|
|
if (atomic_cmpxchg(&fh->v4l_reading, 1, 0) == 1) {
|
|
if (atomic_dec_return(&port->v4l_reader_count) == 0) {
|
|
/* stop vbi capture then cancel buffers */
|
|
saa7164_vbi_stop_streaming(port);
|
|
}
|
|
}
|
|
|
|
file->private_data = NULL;
|
|
kfree(fh);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct
|
|
saa7164_user_buffer *saa7164_vbi_next_buf(struct saa7164_port *port)
|
|
{
|
|
struct saa7164_user_buffer *ubuf = NULL;
|
|
struct saa7164_dev *dev = port->dev;
|
|
u32 crc;
|
|
|
|
mutex_lock(&port->dmaqueue_lock);
|
|
if (!list_empty(&port->list_buf_used.list)) {
|
|
ubuf = list_first_entry(&port->list_buf_used.list,
|
|
struct saa7164_user_buffer, list);
|
|
|
|
if (crc_checking) {
|
|
crc = crc32(0, ubuf->data, ubuf->actual_size);
|
|
if (crc != ubuf->crc) {
|
|
printk(KERN_ERR "%s() ubuf %p crc became invalid, was 0x%x became 0x%x\n",
|
|
__func__,
|
|
ubuf, ubuf->crc, crc);
|
|
}
|
|
}
|
|
|
|
}
|
|
mutex_unlock(&port->dmaqueue_lock);
|
|
|
|
dprintk(DBGLVL_VBI, "%s() returns %p\n", __func__, ubuf);
|
|
|
|
return ubuf;
|
|
}
|
|
|
|
static ssize_t fops_read(struct file *file, char __user *buffer,
|
|
size_t count, loff_t *pos)
|
|
{
|
|
struct saa7164_vbi_fh *fh = file->private_data;
|
|
struct saa7164_port *port = fh->port;
|
|
struct saa7164_user_buffer *ubuf = NULL;
|
|
struct saa7164_dev *dev = port->dev;
|
|
int ret = 0;
|
|
int rem, cnt;
|
|
u8 *p;
|
|
|
|
port->last_read_msecs_diff = port->last_read_msecs;
|
|
port->last_read_msecs = jiffies_to_msecs(jiffies);
|
|
port->last_read_msecs_diff = port->last_read_msecs -
|
|
port->last_read_msecs_diff;
|
|
|
|
saa7164_histogram_update(&port->read_interval,
|
|
port->last_read_msecs_diff);
|
|
|
|
if (*pos) {
|
|
printk(KERN_ERR "%s() ESPIPE\n", __func__);
|
|
return -ESPIPE;
|
|
}
|
|
|
|
if (atomic_cmpxchg(&fh->v4l_reading, 0, 1) == 0) {
|
|
if (atomic_inc_return(&port->v4l_reader_count) == 1) {
|
|
|
|
if (saa7164_vbi_initialize(port) < 0) {
|
|
printk(KERN_ERR "%s() EINVAL\n", __func__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
saa7164_vbi_start_streaming(port);
|
|
msleep(200);
|
|
}
|
|
}
|
|
|
|
/* blocking wait for buffer */
|
|
if ((file->f_flags & O_NONBLOCK) == 0) {
|
|
if (wait_event_interruptible(port->wait_read,
|
|
saa7164_vbi_next_buf(port))) {
|
|
printk(KERN_ERR "%s() ERESTARTSYS\n", __func__);
|
|
return -ERESTARTSYS;
|
|
}
|
|
}
|
|
|
|
/* Pull the first buffer from the used list */
|
|
ubuf = saa7164_vbi_next_buf(port);
|
|
|
|
while ((count > 0) && ubuf) {
|
|
|
|
/* set remaining bytes to copy */
|
|
rem = ubuf->actual_size - ubuf->pos;
|
|
cnt = rem > count ? count : rem;
|
|
|
|
p = ubuf->data + ubuf->pos;
|
|
|
|
dprintk(DBGLVL_VBI,
|
|
"%s() count=%d cnt=%d rem=%d buf=%p buf->pos=%d\n",
|
|
__func__, (int)count, cnt, rem, ubuf, ubuf->pos);
|
|
|
|
if (copy_to_user(buffer, p, cnt)) {
|
|
printk(KERN_ERR "%s() copy_to_user failed\n", __func__);
|
|
if (!ret) {
|
|
printk(KERN_ERR "%s() EFAULT\n", __func__);
|
|
ret = -EFAULT;
|
|
}
|
|
goto err;
|
|
}
|
|
|
|
ubuf->pos += cnt;
|
|
count -= cnt;
|
|
buffer += cnt;
|
|
ret += cnt;
|
|
|
|
if (ubuf->pos > ubuf->actual_size)
|
|
printk(KERN_ERR "read() pos > actual, huh?\n");
|
|
|
|
if (ubuf->pos == ubuf->actual_size) {
|
|
|
|
/* finished with current buffer, take next buffer */
|
|
|
|
/* Requeue the buffer on the free list */
|
|
ubuf->pos = 0;
|
|
|
|
mutex_lock(&port->dmaqueue_lock);
|
|
list_move_tail(&ubuf->list, &port->list_buf_free.list);
|
|
mutex_unlock(&port->dmaqueue_lock);
|
|
|
|
/* Dequeue next */
|
|
if ((file->f_flags & O_NONBLOCK) == 0) {
|
|
if (wait_event_interruptible(port->wait_read,
|
|
saa7164_vbi_next_buf(port))) {
|
|
break;
|
|
}
|
|
}
|
|
ubuf = saa7164_vbi_next_buf(port);
|
|
}
|
|
}
|
|
err:
|
|
if (!ret && !ubuf) {
|
|
printk(KERN_ERR "%s() EAGAIN\n", __func__);
|
|
ret = -EAGAIN;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static unsigned int fops_poll(struct file *file, poll_table *wait)
|
|
{
|
|
struct saa7164_vbi_fh *fh = (struct saa7164_vbi_fh *)file->private_data;
|
|
struct saa7164_port *port = fh->port;
|
|
unsigned int mask = 0;
|
|
|
|
port->last_poll_msecs_diff = port->last_poll_msecs;
|
|
port->last_poll_msecs = jiffies_to_msecs(jiffies);
|
|
port->last_poll_msecs_diff = port->last_poll_msecs -
|
|
port->last_poll_msecs_diff;
|
|
|
|
saa7164_histogram_update(&port->poll_interval,
|
|
port->last_poll_msecs_diff);
|
|
|
|
if (!video_is_registered(port->v4l_device))
|
|
return -EIO;
|
|
|
|
if (atomic_cmpxchg(&fh->v4l_reading, 0, 1) == 0) {
|
|
if (atomic_inc_return(&port->v4l_reader_count) == 1) {
|
|
if (saa7164_vbi_initialize(port) < 0)
|
|
return -EINVAL;
|
|
saa7164_vbi_start_streaming(port);
|
|
msleep(200);
|
|
}
|
|
}
|
|
|
|
/* blocking wait for buffer */
|
|
if ((file->f_flags & O_NONBLOCK) == 0) {
|
|
if (wait_event_interruptible(port->wait_read,
|
|
saa7164_vbi_next_buf(port))) {
|
|
return -ERESTARTSYS;
|
|
}
|
|
}
|
|
|
|
/* Pull the first buffer from the used list */
|
|
if (!list_empty(&port->list_buf_used.list))
|
|
mask |= POLLIN | POLLRDNORM;
|
|
|
|
return mask;
|
|
}
|
|
static const struct v4l2_file_operations vbi_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = fops_open,
|
|
.release = fops_release,
|
|
.read = fops_read,
|
|
.poll = fops_poll,
|
|
.unlocked_ioctl = video_ioctl2,
|
|
};
|
|
|
|
static const struct v4l2_ioctl_ops vbi_ioctl_ops = {
|
|
.vidioc_s_std = vidioc_s_std,
|
|
.vidioc_g_std = vidioc_g_std,
|
|
.vidioc_enum_input = vidioc_enum_input,
|
|
.vidioc_g_input = vidioc_g_input,
|
|
.vidioc_s_input = vidioc_s_input,
|
|
.vidioc_g_tuner = vidioc_g_tuner,
|
|
.vidioc_s_tuner = vidioc_s_tuner,
|
|
.vidioc_g_frequency = vidioc_g_frequency,
|
|
.vidioc_s_frequency = vidioc_s_frequency,
|
|
.vidioc_s_ctrl = vidioc_s_ctrl,
|
|
.vidioc_g_ctrl = vidioc_g_ctrl,
|
|
.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_ext_ctrls = vidioc_g_ext_ctrls,
|
|
.vidioc_s_ext_ctrls = vidioc_s_ext_ctrls,
|
|
.vidioc_try_ext_ctrls = vidioc_try_ext_ctrls,
|
|
.vidioc_queryctrl = vidioc_queryctrl,
|
|
.vidioc_g_fmt_vbi_cap = saa7164_vbi_fmt,
|
|
.vidioc_try_fmt_vbi_cap = saa7164_vbi_fmt,
|
|
.vidioc_s_fmt_vbi_cap = saa7164_vbi_fmt,
|
|
};
|
|
|
|
static struct video_device saa7164_vbi_template = {
|
|
.name = "saa7164",
|
|
.fops = &vbi_fops,
|
|
.ioctl_ops = &vbi_ioctl_ops,
|
|
.minor = -1,
|
|
.tvnorms = SAA7164_NORMS,
|
|
};
|
|
|
|
static struct video_device *saa7164_vbi_alloc(
|
|
struct saa7164_port *port,
|
|
struct pci_dev *pci,
|
|
struct video_device *template,
|
|
char *type)
|
|
{
|
|
struct video_device *vfd;
|
|
struct saa7164_dev *dev = port->dev;
|
|
|
|
dprintk(DBGLVL_VBI, "%s()\n", __func__);
|
|
|
|
vfd = video_device_alloc();
|
|
if (NULL == vfd)
|
|
return NULL;
|
|
|
|
*vfd = *template;
|
|
snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name,
|
|
type, saa7164_boards[dev->board].name);
|
|
|
|
vfd->v4l2_dev = &dev->v4l2_dev;
|
|
vfd->release = video_device_release;
|
|
return vfd;
|
|
}
|
|
|
|
int saa7164_vbi_register(struct saa7164_port *port)
|
|
{
|
|
struct saa7164_dev *dev = port->dev;
|
|
int result = -ENODEV;
|
|
|
|
dprintk(DBGLVL_VBI, "%s()\n", __func__);
|
|
|
|
if (port->type != SAA7164_MPEG_VBI)
|
|
BUG();
|
|
|
|
/* Sanity check that the PCI configuration space is active */
|
|
if (port->hwcfg.BARLocation == 0) {
|
|
printk(KERN_ERR "%s() failed "
|
|
"(errno = %d), NO PCI configuration\n",
|
|
__func__, result);
|
|
result = -ENOMEM;
|
|
goto failed;
|
|
}
|
|
|
|
/* Establish VBI defaults here */
|
|
|
|
/* Allocate and register the video device node */
|
|
port->v4l_device = saa7164_vbi_alloc(port,
|
|
dev->pci, &saa7164_vbi_template, "vbi");
|
|
|
|
if (!port->v4l_device) {
|
|
printk(KERN_INFO "%s: can't allocate vbi device\n",
|
|
dev->name);
|
|
result = -ENOMEM;
|
|
goto failed;
|
|
}
|
|
|
|
port->std = V4L2_STD_NTSC_M;
|
|
video_set_drvdata(port->v4l_device, port);
|
|
result = video_register_device(port->v4l_device,
|
|
VFL_TYPE_VBI, -1);
|
|
if (result < 0) {
|
|
printk(KERN_INFO "%s: can't register vbi device\n",
|
|
dev->name);
|
|
/* TODO: We're going to leak here if we don't dealloc
|
|
The buffers above. The unreg function can't deal wit it.
|
|
*/
|
|
goto failed;
|
|
}
|
|
|
|
printk(KERN_INFO "%s: registered device vbi%d [vbi]\n",
|
|
dev->name, port->v4l_device->num);
|
|
|
|
/* Configure the hardware defaults */
|
|
|
|
result = 0;
|
|
failed:
|
|
return result;
|
|
}
|
|
|
|
void saa7164_vbi_unregister(struct saa7164_port *port)
|
|
{
|
|
struct saa7164_dev *dev = port->dev;
|
|
|
|
dprintk(DBGLVL_VBI, "%s(port=%d)\n", __func__, port->nr);
|
|
|
|
if (port->type != SAA7164_MPEG_VBI)
|
|
BUG();
|
|
|
|
if (port->v4l_device) {
|
|
if (port->v4l_device->minor != -1)
|
|
video_unregister_device(port->v4l_device);
|
|
else
|
|
video_device_release(port->v4l_device);
|
|
|
|
port->v4l_device = NULL;
|
|
}
|
|
|
|
}
|