forked from Minki/linux
dab7e3106d
Due to obvious copy and paste coding a number of video capture drivers which implement a limit on the buffer memory decremented the user supplied buffer count in a while loop until it reaches an acceptable value. This is a silly thing to do when the maximum value can be directly computed. Signed-off-by: Andreas Bombe <aeb@debian.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
1551 lines
39 KiB
C
1551 lines
39 KiB
C
/*
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* Driver for the Conexant CX23885 PCIe bridge
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*
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* Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
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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 <linux/init.h>
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#include <linux/list.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/kmod.h>
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/smp_lock.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <linux/kthread.h>
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#include <asm/div64.h>
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#include "cx23885.h"
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#include <media/v4l2-common.h>
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#include <media/v4l2-ioctl.h>
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#include "cx23885-ioctl.h"
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#include "tuner-xc2028.h"
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MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
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MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
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MODULE_LICENSE("GPL");
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/* ------------------------------------------------------------------ */
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static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
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static unsigned int vbi_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
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static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
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module_param_array(video_nr, int, NULL, 0444);
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module_param_array(vbi_nr, int, NULL, 0444);
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module_param_array(radio_nr, int, NULL, 0444);
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MODULE_PARM_DESC(video_nr, "video device numbers");
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MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
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MODULE_PARM_DESC(radio_nr, "radio device numbers");
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static unsigned int video_debug;
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module_param(video_debug, int, 0644);
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MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
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static unsigned int irq_debug;
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module_param(irq_debug, int, 0644);
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MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
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static unsigned int vid_limit = 16;
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module_param(vid_limit, int, 0644);
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MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
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#define dprintk(level, fmt, arg...)\
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do { if (video_debug >= level)\
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printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
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} while (0)
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/* ------------------------------------------------------------------- */
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/* static data */
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#define FORMAT_FLAGS_PACKED 0x01
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static struct cx23885_fmt formats[] = {
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{
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.name = "8 bpp, gray",
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.fourcc = V4L2_PIX_FMT_GREY,
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.depth = 8,
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.flags = FORMAT_FLAGS_PACKED,
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}, {
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.name = "15 bpp RGB, le",
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.fourcc = V4L2_PIX_FMT_RGB555,
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.depth = 16,
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.flags = FORMAT_FLAGS_PACKED,
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}, {
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.name = "15 bpp RGB, be",
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.fourcc = V4L2_PIX_FMT_RGB555X,
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.depth = 16,
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.flags = FORMAT_FLAGS_PACKED,
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}, {
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.name = "16 bpp RGB, le",
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.fourcc = V4L2_PIX_FMT_RGB565,
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.depth = 16,
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.flags = FORMAT_FLAGS_PACKED,
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}, {
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.name = "16 bpp RGB, be",
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.fourcc = V4L2_PIX_FMT_RGB565X,
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.depth = 16,
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.flags = FORMAT_FLAGS_PACKED,
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}, {
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.name = "24 bpp RGB, le",
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.fourcc = V4L2_PIX_FMT_BGR24,
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.depth = 24,
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.flags = FORMAT_FLAGS_PACKED,
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}, {
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.name = "32 bpp RGB, le",
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.fourcc = V4L2_PIX_FMT_BGR32,
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.depth = 32,
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.flags = FORMAT_FLAGS_PACKED,
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}, {
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.name = "32 bpp RGB, be",
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.fourcc = V4L2_PIX_FMT_RGB32,
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.depth = 32,
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.flags = FORMAT_FLAGS_PACKED,
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}, {
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.name = "4:2:2, packed, YUYV",
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.fourcc = V4L2_PIX_FMT_YUYV,
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.depth = 16,
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.flags = FORMAT_FLAGS_PACKED,
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}, {
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.name = "4:2:2, packed, UYVY",
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.fourcc = V4L2_PIX_FMT_UYVY,
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.depth = 16,
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.flags = FORMAT_FLAGS_PACKED,
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},
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};
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static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
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{
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE(formats); i++)
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if (formats[i].fourcc == fourcc)
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return formats+i;
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printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc);
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return NULL;
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}
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/* ------------------------------------------------------------------- */
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static const struct v4l2_queryctrl no_ctl = {
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.name = "42",
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.flags = V4L2_CTRL_FLAG_DISABLED,
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};
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static struct cx23885_ctrl cx23885_ctls[] = {
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/* --- video --- */
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{
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.v = {
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.id = V4L2_CID_BRIGHTNESS,
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.name = "Brightness",
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.minimum = 0x00,
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.maximum = 0xff,
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.step = 1,
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.default_value = 0x7f,
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.type = V4L2_CTRL_TYPE_INTEGER,
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},
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.off = 128,
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.reg = LUMA_CTRL,
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.mask = 0x00ff,
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.shift = 0,
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}, {
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.v = {
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.id = V4L2_CID_CONTRAST,
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.name = "Contrast",
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.minimum = 0,
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.maximum = 0xff,
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.step = 1,
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.default_value = 0x3f,
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.type = V4L2_CTRL_TYPE_INTEGER,
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},
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.off = 0,
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.reg = LUMA_CTRL,
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.mask = 0xff00,
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.shift = 8,
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}, {
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.v = {
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.id = V4L2_CID_HUE,
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.name = "Hue",
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.minimum = 0,
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.maximum = 0xff,
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.step = 1,
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.default_value = 0x7f,
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.type = V4L2_CTRL_TYPE_INTEGER,
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},
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.off = 128,
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.reg = CHROMA_CTRL,
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.mask = 0xff0000,
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.shift = 16,
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}, {
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/* strictly, this only describes only U saturation.
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* V saturation is handled specially through code.
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*/
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.v = {
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.id = V4L2_CID_SATURATION,
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.name = "Saturation",
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.minimum = 0,
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.maximum = 0xff,
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.step = 1,
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.default_value = 0x7f,
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.type = V4L2_CTRL_TYPE_INTEGER,
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},
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.off = 0,
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.reg = CHROMA_CTRL,
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.mask = 0x00ff,
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.shift = 0,
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}, {
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/* --- audio --- */
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.v = {
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.id = V4L2_CID_AUDIO_MUTE,
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.name = "Mute",
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.minimum = 0,
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.maximum = 1,
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.default_value = 1,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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},
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.reg = PATH1_CTL1,
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.mask = (0x1f << 24),
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.shift = 24,
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}, {
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.v = {
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.id = V4L2_CID_AUDIO_VOLUME,
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.name = "Volume",
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.minimum = 0,
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.maximum = 0x3f,
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.step = 1,
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.default_value = 0x3f,
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.type = V4L2_CTRL_TYPE_INTEGER,
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},
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.reg = PATH1_VOL_CTL,
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.mask = 0xff,
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.shift = 0,
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}
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};
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static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls);
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/* Must be sorted from low to high control ID! */
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static const u32 cx23885_user_ctrls[] = {
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V4L2_CID_USER_CLASS,
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V4L2_CID_BRIGHTNESS,
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V4L2_CID_CONTRAST,
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V4L2_CID_SATURATION,
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V4L2_CID_HUE,
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V4L2_CID_AUDIO_VOLUME,
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V4L2_CID_AUDIO_MUTE,
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0
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};
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static const u32 *ctrl_classes[] = {
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cx23885_user_ctrls,
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NULL
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};
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static void cx23885_video_wakeup(struct cx23885_dev *dev,
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struct cx23885_dmaqueue *q, u32 count)
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{
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struct cx23885_buffer *buf;
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int bc;
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for (bc = 0;; bc++) {
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if (list_empty(&q->active))
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break;
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buf = list_entry(q->active.next,
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struct cx23885_buffer, vb.queue);
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/* count comes from the hw and is is 16bit wide --
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* this trick handles wrap-arounds correctly for
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* up to 32767 buffers in flight... */
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if ((s16) (count - buf->count) < 0)
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break;
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do_gettimeofday(&buf->vb.ts);
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dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
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count, buf->count);
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buf->vb.state = VIDEOBUF_DONE;
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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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if (list_empty(&q->active))
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del_timer(&q->timeout);
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else
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mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
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if (bc != 1)
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printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
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__func__, bc);
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}
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static int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
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{
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dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
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__func__,
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(unsigned int)norm,
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v4l2_norm_to_name(norm));
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dev->tvnorm = norm;
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call_all(dev, core, s_std, norm);
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return 0;
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}
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static struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
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struct pci_dev *pci,
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struct video_device *template,
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char *type)
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{
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struct video_device *vfd;
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dprintk(1, "%s()\n", __func__);
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vfd = video_device_alloc();
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if (NULL == vfd)
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return NULL;
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*vfd = *template;
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vfd->v4l2_dev = &dev->v4l2_dev;
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vfd->release = video_device_release;
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snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
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dev->name, type, cx23885_boards[dev->board].name);
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video_set_drvdata(vfd, dev);
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return vfd;
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}
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static int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl)
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{
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int i;
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if (qctrl->id < V4L2_CID_BASE ||
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qctrl->id >= V4L2_CID_LASTP1)
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return -EINVAL;
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for (i = 0; i < CX23885_CTLS; i++)
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if (cx23885_ctls[i].v.id == qctrl->id)
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break;
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if (i == CX23885_CTLS) {
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*qctrl = no_ctl;
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return 0;
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}
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*qctrl = cx23885_ctls[i].v;
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return 0;
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}
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/* ------------------------------------------------------------------- */
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/* resource management */
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static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
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unsigned int bit)
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{
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dprintk(1, "%s()\n", __func__);
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if (fh->resources & bit)
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/* have it already allocated */
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return 1;
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/* is it free? */
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mutex_lock(&dev->lock);
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if (dev->resources & bit) {
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/* no, someone else uses it */
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mutex_unlock(&dev->lock);
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return 0;
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}
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/* it's free, grab it */
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fh->resources |= bit;
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dev->resources |= bit;
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dprintk(1, "res: get %d\n", bit);
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mutex_unlock(&dev->lock);
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return 1;
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}
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static int res_check(struct cx23885_fh *fh, unsigned int bit)
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{
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return fh->resources & bit;
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}
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static int res_locked(struct cx23885_dev *dev, unsigned int bit)
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{
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return dev->resources & bit;
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}
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static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
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unsigned int bits)
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{
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BUG_ON((fh->resources & bits) != bits);
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dprintk(1, "%s()\n", __func__);
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mutex_lock(&dev->lock);
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fh->resources &= ~bits;
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dev->resources &= ~bits;
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dprintk(1, "res: put %d\n", bits);
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mutex_unlock(&dev->lock);
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}
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static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
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{
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dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
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__func__,
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input, INPUT(input)->vmux,
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INPUT(input)->gpio0, INPUT(input)->gpio1,
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INPUT(input)->gpio2, INPUT(input)->gpio3);
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dev->input = input;
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if (dev->board == CX23885_BOARD_MYGICA_X8506 ||
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dev->board == CX23885_BOARD_MAGICPRO_PROHDTVE2) {
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/* Select Analog TV */
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if (INPUT(input)->type == CX23885_VMUX_TELEVISION)
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cx23885_gpio_clear(dev, GPIO_0);
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}
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/* Tell the internal A/V decoder */
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v4l2_subdev_call(dev->sd_cx25840, video, s_routing,
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INPUT(input)->vmux, 0, 0);
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return 0;
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}
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/* ------------------------------------------------------------------ */
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static int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width,
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unsigned int height, enum v4l2_field field)
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{
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dprintk(1, "%s()\n", __func__);
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return 0;
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}
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static int cx23885_start_video_dma(struct cx23885_dev *dev,
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struct cx23885_dmaqueue *q,
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struct cx23885_buffer *buf)
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{
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dprintk(1, "%s()\n", __func__);
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/* setup fifo + format */
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cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
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buf->bpl, buf->risc.dma);
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cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
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/* reset counter */
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cx_write(VID_A_GPCNT_CTL, 3);
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q->count = 1;
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/* enable irq */
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cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01);
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cx_set(VID_A_INT_MSK, 0x000011);
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/* start dma */
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cx_set(DEV_CNTRL2, (1<<5));
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cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
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return 0;
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}
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static int cx23885_restart_video_queue(struct cx23885_dev *dev,
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struct cx23885_dmaqueue *q)
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{
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struct cx23885_buffer *buf, *prev;
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struct list_head *item;
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dprintk(1, "%s()\n", __func__);
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if (!list_empty(&q->active)) {
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buf = list_entry(q->active.next, struct cx23885_buffer,
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vb.queue);
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dprintk(2, "restart_queue [%p/%d]: restart dma\n",
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buf, buf->vb.i);
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cx23885_start_video_dma(dev, q, buf);
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list_for_each(item, &q->active) {
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buf = list_entry(item, struct cx23885_buffer,
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vb.queue);
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buf->count = q->count++;
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}
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mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
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return 0;
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}
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prev = NULL;
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for (;;) {
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if (list_empty(&q->queued))
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return 0;
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buf = list_entry(q->queued.next, struct cx23885_buffer,
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vb.queue);
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if (NULL == prev) {
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list_move_tail(&buf->vb.queue, &q->active);
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cx23885_start_video_dma(dev, q, buf);
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buf->vb.state = VIDEOBUF_ACTIVE;
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buf->count = q->count++;
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mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
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dprintk(2, "[%p/%d] restart_queue - first active\n",
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buf, buf->vb.i);
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} else if (prev->vb.width == buf->vb.width &&
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prev->vb.height == buf->vb.height &&
|
|
prev->fmt == buf->fmt) {
|
|
list_move_tail(&buf->vb.queue, &q->active);
|
|
buf->vb.state = VIDEOBUF_ACTIVE;
|
|
buf->count = q->count++;
|
|
prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
|
|
prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
|
|
dprintk(2, "[%p/%d] restart_queue - move to active\n",
|
|
buf, buf->vb.i);
|
|
} else {
|
|
return 0;
|
|
}
|
|
prev = buf;
|
|
}
|
|
}
|
|
|
|
static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
|
|
unsigned int *size)
|
|
{
|
|
struct cx23885_fh *fh = q->priv_data;
|
|
|
|
*size = fh->fmt->depth*fh->width*fh->height >> 3;
|
|
if (0 == *count)
|
|
*count = 32;
|
|
if (*size * *count > vid_limit * 1024 * 1024)
|
|
*count = (vid_limit * 1024 * 1024) / *size;
|
|
return 0;
|
|
}
|
|
|
|
static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
|
|
enum v4l2_field field)
|
|
{
|
|
struct cx23885_fh *fh = q->priv_data;
|
|
struct cx23885_dev *dev = fh->dev;
|
|
struct cx23885_buffer *buf =
|
|
container_of(vb, struct cx23885_buffer, vb);
|
|
int rc, init_buffer = 0;
|
|
u32 line0_offset, line1_offset;
|
|
struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
|
|
|
|
BUG_ON(NULL == fh->fmt);
|
|
if (fh->width < 48 || fh->width > norm_maxw(dev->tvnorm) ||
|
|
fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
|
|
return -EINVAL;
|
|
buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
|
|
if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
|
|
return -EINVAL;
|
|
|
|
if (buf->fmt != fh->fmt ||
|
|
buf->vb.width != fh->width ||
|
|
buf->vb.height != fh->height ||
|
|
buf->vb.field != field) {
|
|
buf->fmt = fh->fmt;
|
|
buf->vb.width = fh->width;
|
|
buf->vb.height = fh->height;
|
|
buf->vb.field = field;
|
|
init_buffer = 1;
|
|
}
|
|
|
|
if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
|
|
init_buffer = 1;
|
|
rc = videobuf_iolock(q, &buf->vb, NULL);
|
|
if (0 != rc)
|
|
goto fail;
|
|
}
|
|
|
|
if (init_buffer) {
|
|
buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
|
|
switch (buf->vb.field) {
|
|
case V4L2_FIELD_TOP:
|
|
cx23885_risc_buffer(dev->pci, &buf->risc,
|
|
dma->sglist, 0, UNSET,
|
|
buf->bpl, 0, buf->vb.height);
|
|
break;
|
|
case V4L2_FIELD_BOTTOM:
|
|
cx23885_risc_buffer(dev->pci, &buf->risc,
|
|
dma->sglist, UNSET, 0,
|
|
buf->bpl, 0, buf->vb.height);
|
|
break;
|
|
case V4L2_FIELD_INTERLACED:
|
|
if (dev->tvnorm & V4L2_STD_NTSC) {
|
|
/* cx25840 transmits NTSC bottom field first */
|
|
dprintk(1, "%s() Creating NTSC risc\n",
|
|
__func__);
|
|
line0_offset = buf->bpl;
|
|
line1_offset = 0;
|
|
} else {
|
|
/* All other formats are top field first */
|
|
dprintk(1, "%s() Creating PAL/SECAM risc\n",
|
|
__func__);
|
|
line0_offset = 0;
|
|
line1_offset = buf->bpl;
|
|
}
|
|
cx23885_risc_buffer(dev->pci, &buf->risc,
|
|
dma->sglist, line0_offset,
|
|
line1_offset,
|
|
buf->bpl, buf->bpl,
|
|
buf->vb.height >> 1);
|
|
break;
|
|
case V4L2_FIELD_SEQ_TB:
|
|
cx23885_risc_buffer(dev->pci, &buf->risc,
|
|
dma->sglist,
|
|
0, buf->bpl * (buf->vb.height >> 1),
|
|
buf->bpl, 0,
|
|
buf->vb.height >> 1);
|
|
break;
|
|
case V4L2_FIELD_SEQ_BT:
|
|
cx23885_risc_buffer(dev->pci, &buf->risc,
|
|
dma->sglist,
|
|
buf->bpl * (buf->vb.height >> 1), 0,
|
|
buf->bpl, 0,
|
|
buf->vb.height >> 1);
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
}
|
|
dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
|
|
buf, buf->vb.i,
|
|
fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
|
|
(unsigned long)buf->risc.dma);
|
|
|
|
buf->vb.state = VIDEOBUF_PREPARED;
|
|
return 0;
|
|
|
|
fail:
|
|
cx23885_free_buffer(q, buf);
|
|
return rc;
|
|
}
|
|
|
|
static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
|
|
{
|
|
struct cx23885_buffer *buf = container_of(vb,
|
|
struct cx23885_buffer, vb);
|
|
struct cx23885_buffer *prev;
|
|
struct cx23885_fh *fh = vq->priv_data;
|
|
struct cx23885_dev *dev = fh->dev;
|
|
struct cx23885_dmaqueue *q = &dev->vidq;
|
|
|
|
/* add jump to stopper */
|
|
buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
|
|
buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
|
|
buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
|
|
|
|
if (!list_empty(&q->queued)) {
|
|
list_add_tail(&buf->vb.queue, &q->queued);
|
|
buf->vb.state = VIDEOBUF_QUEUED;
|
|
dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
|
|
buf, buf->vb.i);
|
|
|
|
} else if (list_empty(&q->active)) {
|
|
list_add_tail(&buf->vb.queue, &q->active);
|
|
cx23885_start_video_dma(dev, q, buf);
|
|
buf->vb.state = VIDEOBUF_ACTIVE;
|
|
buf->count = q->count++;
|
|
mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
|
|
dprintk(2, "[%p/%d] buffer_queue - first active\n",
|
|
buf, buf->vb.i);
|
|
|
|
} else {
|
|
prev = list_entry(q->active.prev, struct cx23885_buffer,
|
|
vb.queue);
|
|
if (prev->vb.width == buf->vb.width &&
|
|
prev->vb.height == buf->vb.height &&
|
|
prev->fmt == buf->fmt) {
|
|
list_add_tail(&buf->vb.queue, &q->active);
|
|
buf->vb.state = VIDEOBUF_ACTIVE;
|
|
buf->count = q->count++;
|
|
prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
|
|
/* 64 bit bits 63-32 */
|
|
prev->risc.jmp[2] = cpu_to_le32(0);
|
|
dprintk(2, "[%p/%d] buffer_queue - append to active\n",
|
|
buf, buf->vb.i);
|
|
|
|
} else {
|
|
list_add_tail(&buf->vb.queue, &q->queued);
|
|
buf->vb.state = VIDEOBUF_QUEUED;
|
|
dprintk(2, "[%p/%d] buffer_queue - first queued\n",
|
|
buf, buf->vb.i);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void buffer_release(struct videobuf_queue *q,
|
|
struct videobuf_buffer *vb)
|
|
{
|
|
struct cx23885_buffer *buf = container_of(vb,
|
|
struct cx23885_buffer, vb);
|
|
|
|
cx23885_free_buffer(q, buf);
|
|
}
|
|
|
|
static struct videobuf_queue_ops cx23885_video_qops = {
|
|
.buf_setup = buffer_setup,
|
|
.buf_prepare = buffer_prepare,
|
|
.buf_queue = buffer_queue,
|
|
.buf_release = buffer_release,
|
|
};
|
|
|
|
static struct videobuf_queue *get_queue(struct cx23885_fh *fh)
|
|
{
|
|
switch (fh->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
return &fh->vidq;
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
|
return &fh->vbiq;
|
|
default:
|
|
BUG();
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static int get_resource(struct cx23885_fh *fh)
|
|
{
|
|
switch (fh->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
return RESOURCE_VIDEO;
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
|
return RESOURCE_VBI;
|
|
default:
|
|
BUG();
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int video_open(struct file *file)
|
|
{
|
|
struct video_device *vdev = video_devdata(file);
|
|
struct cx23885_dev *dev = video_drvdata(file);
|
|
struct cx23885_fh *fh;
|
|
enum v4l2_buf_type type = 0;
|
|
int radio = 0;
|
|
|
|
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;
|
|
case VFL_TYPE_RADIO:
|
|
radio = 1;
|
|
break;
|
|
}
|
|
|
|
dprintk(1, "open dev=%s radio=%d type=%s\n",
|
|
video_device_node_name(vdev), radio, v4l2_type_names[type]);
|
|
|
|
/* allocate + initialize per filehandle data */
|
|
fh = kzalloc(sizeof(*fh), GFP_KERNEL);
|
|
if (NULL == fh)
|
|
return -ENOMEM;
|
|
|
|
lock_kernel();
|
|
|
|
file->private_data = fh;
|
|
fh->dev = dev;
|
|
fh->radio = radio;
|
|
fh->type = type;
|
|
fh->width = 320;
|
|
fh->height = 240;
|
|
fh->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
|
|
|
|
videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops,
|
|
&dev->pci->dev, &dev->slock,
|
|
V4L2_BUF_TYPE_VIDEO_CAPTURE,
|
|
V4L2_FIELD_INTERLACED,
|
|
sizeof(struct cx23885_buffer),
|
|
fh);
|
|
|
|
dprintk(1, "post videobuf_queue_init()\n");
|
|
|
|
unlock_kernel();
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t video_read(struct file *file, char __user *data,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct cx23885_fh *fh = file->private_data;
|
|
|
|
switch (fh->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
if (res_locked(fh->dev, RESOURCE_VIDEO))
|
|
return -EBUSY;
|
|
return videobuf_read_one(&fh->vidq, data, count, ppos,
|
|
file->f_flags & O_NONBLOCK);
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
|
if (!res_get(fh->dev, fh, RESOURCE_VBI))
|
|
return -EBUSY;
|
|
return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
|
|
file->f_flags & O_NONBLOCK);
|
|
default:
|
|
BUG();
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static unsigned int video_poll(struct file *file,
|
|
struct poll_table_struct *wait)
|
|
{
|
|
struct cx23885_fh *fh = file->private_data;
|
|
struct cx23885_buffer *buf;
|
|
unsigned int rc = POLLERR;
|
|
|
|
if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
|
|
if (!res_get(fh->dev, fh, RESOURCE_VBI))
|
|
return POLLERR;
|
|
return videobuf_poll_stream(file, &fh->vbiq, wait);
|
|
}
|
|
|
|
mutex_lock(&fh->vidq.vb_lock);
|
|
if (res_check(fh, RESOURCE_VIDEO)) {
|
|
/* streaming capture */
|
|
if (list_empty(&fh->vidq.stream))
|
|
goto done;
|
|
buf = list_entry(fh->vidq.stream.next,
|
|
struct cx23885_buffer, vb.stream);
|
|
} else {
|
|
/* read() capture */
|
|
buf = (struct cx23885_buffer *)fh->vidq.read_buf;
|
|
if (NULL == buf)
|
|
goto done;
|
|
}
|
|
poll_wait(file, &buf->vb.done, wait);
|
|
if (buf->vb.state == VIDEOBUF_DONE ||
|
|
buf->vb.state == VIDEOBUF_ERROR)
|
|
rc = POLLIN|POLLRDNORM;
|
|
else
|
|
rc = 0;
|
|
done:
|
|
mutex_unlock(&fh->vidq.vb_lock);
|
|
return rc;
|
|
}
|
|
|
|
static int video_release(struct file *file)
|
|
{
|
|
struct cx23885_fh *fh = file->private_data;
|
|
struct cx23885_dev *dev = fh->dev;
|
|
|
|
/* turn off overlay */
|
|
if (res_check(fh, RESOURCE_OVERLAY)) {
|
|
/* FIXME */
|
|
res_free(dev, fh, RESOURCE_OVERLAY);
|
|
}
|
|
|
|
/* stop video capture */
|
|
if (res_check(fh, RESOURCE_VIDEO)) {
|
|
videobuf_queue_cancel(&fh->vidq);
|
|
res_free(dev, fh, RESOURCE_VIDEO);
|
|
}
|
|
if (fh->vidq.read_buf) {
|
|
buffer_release(&fh->vidq, fh->vidq.read_buf);
|
|
kfree(fh->vidq.read_buf);
|
|
}
|
|
|
|
/* stop vbi capture */
|
|
if (res_check(fh, RESOURCE_VBI)) {
|
|
if (fh->vbiq.streaming)
|
|
videobuf_streamoff(&fh->vbiq);
|
|
if (fh->vbiq.reading)
|
|
videobuf_read_stop(&fh->vbiq);
|
|
res_free(dev, fh, RESOURCE_VBI);
|
|
}
|
|
|
|
videobuf_mmap_free(&fh->vidq);
|
|
file->private_data = NULL;
|
|
kfree(fh);
|
|
|
|
/* We are not putting the tuner to sleep here on exit, because
|
|
* we want to use the mpeg encoder in another session to capture
|
|
* tuner video. Closing this will result in no video to the encoder.
|
|
*/
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int video_mmap(struct file *file, struct vm_area_struct *vma)
|
|
{
|
|
struct cx23885_fh *fh = file->private_data;
|
|
|
|
return videobuf_mmap_mapper(get_queue(fh), vma);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------ */
|
|
/* VIDEO CTRL IOCTLS */
|
|
|
|
static int cx23885_get_control(struct cx23885_dev *dev,
|
|
struct v4l2_control *ctl)
|
|
{
|
|
dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__);
|
|
call_all(dev, core, g_ctrl, ctl);
|
|
return 0;
|
|
}
|
|
|
|
static int cx23885_set_control(struct cx23885_dev *dev,
|
|
struct v4l2_control *ctl)
|
|
{
|
|
dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)"
|
|
" (disabled - no action)\n", __func__);
|
|
return 0;
|
|
}
|
|
|
|
static void init_controls(struct cx23885_dev *dev)
|
|
{
|
|
struct v4l2_control ctrl;
|
|
int i;
|
|
|
|
for (i = 0; i < CX23885_CTLS; i++) {
|
|
ctrl.id = cx23885_ctls[i].v.id;
|
|
ctrl.value = cx23885_ctls[i].v.default_value;
|
|
|
|
cx23885_set_control(dev, &ctrl);
|
|
}
|
|
}
|
|
|
|
/* ------------------------------------------------------------------ */
|
|
/* VIDEO IOCTLS */
|
|
|
|
static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct cx23885_fh *fh = priv;
|
|
|
|
f->fmt.pix.width = fh->width;
|
|
f->fmt.pix.height = fh->height;
|
|
f->fmt.pix.field = fh->vidq.field;
|
|
f->fmt.pix.pixelformat = fh->fmt->fourcc;
|
|
f->fmt.pix.bytesperline =
|
|
(f->fmt.pix.width * fh->fmt->depth) >> 3;
|
|
f->fmt.pix.sizeimage =
|
|
f->fmt.pix.height * f->fmt.pix.bytesperline;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
|
|
struct cx23885_fmt *fmt;
|
|
enum v4l2_field field;
|
|
unsigned int maxw, maxh;
|
|
|
|
fmt = format_by_fourcc(f->fmt.pix.pixelformat);
|
|
if (NULL == fmt)
|
|
return -EINVAL;
|
|
|
|
field = f->fmt.pix.field;
|
|
maxw = norm_maxw(dev->tvnorm);
|
|
maxh = norm_maxh(dev->tvnorm);
|
|
|
|
if (V4L2_FIELD_ANY == field) {
|
|
field = (f->fmt.pix.height > maxh/2)
|
|
? V4L2_FIELD_INTERLACED
|
|
: V4L2_FIELD_BOTTOM;
|
|
}
|
|
|
|
switch (field) {
|
|
case V4L2_FIELD_TOP:
|
|
case V4L2_FIELD_BOTTOM:
|
|
maxh = maxh / 2;
|
|
break;
|
|
case V4L2_FIELD_INTERLACED:
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
f->fmt.pix.field = field;
|
|
v4l_bound_align_image(&f->fmt.pix.width, 48, maxw, 2,
|
|
&f->fmt.pix.height, 32, maxh, 0, 0);
|
|
f->fmt.pix.bytesperline =
|
|
(f->fmt.pix.width * fmt->depth) >> 3;
|
|
f->fmt.pix.sizeimage =
|
|
f->fmt.pix.height * f->fmt.pix.bytesperline;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct cx23885_fh *fh = priv;
|
|
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
|
|
int err;
|
|
|
|
dprintk(2, "%s()\n", __func__);
|
|
err = vidioc_try_fmt_vid_cap(file, priv, f);
|
|
|
|
if (0 != err)
|
|
return err;
|
|
fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
|
|
fh->width = f->fmt.pix.width;
|
|
fh->height = f->fmt.pix.height;
|
|
fh->vidq.field = f->fmt.pix.field;
|
|
dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
|
|
fh->width, fh->height, fh->vidq.field);
|
|
call_all(dev, video, s_fmt, f);
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_querycap(struct file *file, void *priv,
|
|
struct v4l2_capability *cap)
|
|
{
|
|
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
|
|
|
|
strcpy(cap->driver, "cx23885");
|
|
strlcpy(cap->card, cx23885_boards[dev->board].name,
|
|
sizeof(cap->card));
|
|
sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
|
|
cap->version = CX23885_VERSION_CODE;
|
|
cap->capabilities =
|
|
V4L2_CAP_VIDEO_CAPTURE |
|
|
V4L2_CAP_READWRITE |
|
|
V4L2_CAP_STREAMING |
|
|
V4L2_CAP_VBI_CAPTURE;
|
|
if (UNSET != dev->tuner_type)
|
|
cap->capabilities |= V4L2_CAP_TUNER;
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_fmtdesc *f)
|
|
{
|
|
if (unlikely(f->index >= ARRAY_SIZE(formats)))
|
|
return -EINVAL;
|
|
|
|
strlcpy(f->description, formats[f->index].name,
|
|
sizeof(f->description));
|
|
f->pixelformat = formats[f->index].fourcc;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_VIDEO_V4L1_COMPAT
|
|
static int vidiocgmbuf(struct file *file, void *priv,
|
|
struct video_mbuf *mbuf)
|
|
{
|
|
struct cx23885_fh *fh = priv;
|
|
struct videobuf_queue *q;
|
|
struct v4l2_requestbuffers req;
|
|
unsigned int i;
|
|
int err;
|
|
|
|
q = get_queue(fh);
|
|
memset(&req, 0, sizeof(req));
|
|
req.type = q->type;
|
|
req.count = 8;
|
|
req.memory = V4L2_MEMORY_MMAP;
|
|
err = videobuf_reqbufs(q, &req);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
mbuf->frames = req.count;
|
|
mbuf->size = 0;
|
|
for (i = 0; i < mbuf->frames; i++) {
|
|
mbuf->offsets[i] = q->bufs[i]->boff;
|
|
mbuf->size += q->bufs[i]->bsize;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int vidioc_reqbufs(struct file *file, void *priv,
|
|
struct v4l2_requestbuffers *p)
|
|
{
|
|
struct cx23885_fh *fh = priv;
|
|
return videobuf_reqbufs(get_queue(fh), p);
|
|
}
|
|
|
|
static int vidioc_querybuf(struct file *file, void *priv,
|
|
struct v4l2_buffer *p)
|
|
{
|
|
struct cx23885_fh *fh = priv;
|
|
return videobuf_querybuf(get_queue(fh), p);
|
|
}
|
|
|
|
static int vidioc_qbuf(struct file *file, void *priv,
|
|
struct v4l2_buffer *p)
|
|
{
|
|
struct cx23885_fh *fh = priv;
|
|
return videobuf_qbuf(get_queue(fh), p);
|
|
}
|
|
|
|
static int vidioc_dqbuf(struct file *file, void *priv,
|
|
struct v4l2_buffer *p)
|
|
{
|
|
struct cx23885_fh *fh = priv;
|
|
return videobuf_dqbuf(get_queue(fh), p,
|
|
file->f_flags & O_NONBLOCK);
|
|
}
|
|
|
|
static int vidioc_streamon(struct file *file, void *priv,
|
|
enum v4l2_buf_type i)
|
|
{
|
|
struct cx23885_fh *fh = priv;
|
|
struct cx23885_dev *dev = fh->dev;
|
|
dprintk(1, "%s()\n", __func__);
|
|
|
|
if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
|
|
return -EINVAL;
|
|
if (unlikely(i != fh->type))
|
|
return -EINVAL;
|
|
|
|
if (unlikely(!res_get(dev, fh, get_resource(fh))))
|
|
return -EBUSY;
|
|
return videobuf_streamon(get_queue(fh));
|
|
}
|
|
|
|
static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
|
|
{
|
|
struct cx23885_fh *fh = priv;
|
|
struct cx23885_dev *dev = fh->dev;
|
|
int err, res;
|
|
dprintk(1, "%s()\n", __func__);
|
|
|
|
if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
if (i != fh->type)
|
|
return -EINVAL;
|
|
|
|
res = get_resource(fh);
|
|
err = videobuf_streamoff(get_queue(fh));
|
|
if (err < 0)
|
|
return err;
|
|
res_free(dev, fh, res);
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
|
|
{
|
|
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
|
|
dprintk(1, "%s()\n", __func__);
|
|
|
|
mutex_lock(&dev->lock);
|
|
cx23885_set_tvnorm(dev, *tvnorms);
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
|
|
{
|
|
static const char *iname[] = {
|
|
[CX23885_VMUX_COMPOSITE1] = "Composite1",
|
|
[CX23885_VMUX_COMPOSITE2] = "Composite2",
|
|
[CX23885_VMUX_COMPOSITE3] = "Composite3",
|
|
[CX23885_VMUX_COMPOSITE4] = "Composite4",
|
|
[CX23885_VMUX_SVIDEO] = "S-Video",
|
|
[CX23885_VMUX_COMPONENT] = "Component",
|
|
[CX23885_VMUX_TELEVISION] = "Television",
|
|
[CX23885_VMUX_CABLE] = "Cable TV",
|
|
[CX23885_VMUX_DVB] = "DVB",
|
|
[CX23885_VMUX_DEBUG] = "for debug only",
|
|
};
|
|
unsigned int n;
|
|
dprintk(1, "%s()\n", __func__);
|
|
|
|
n = i->index;
|
|
if (n >= 4)
|
|
return -EINVAL;
|
|
|
|
if (0 == INPUT(n)->type)
|
|
return -EINVAL;
|
|
|
|
memset(i, 0, sizeof(*i));
|
|
i->index = n;
|
|
i->type = V4L2_INPUT_TYPE_CAMERA;
|
|
strcpy(i->name, iname[INPUT(n)->type]);
|
|
if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
|
|
(CX23885_VMUX_CABLE == INPUT(n)->type))
|
|
i->type = V4L2_INPUT_TYPE_TUNER;
|
|
i->std = CX23885_NORMS;
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_enum_input(struct file *file, void *priv,
|
|
struct v4l2_input *i)
|
|
{
|
|
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
|
|
dprintk(1, "%s()\n", __func__);
|
|
return cx23885_enum_input(dev, i);
|
|
}
|
|
|
|
static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
|
|
{
|
|
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
|
|
|
|
*i = dev->input;
|
|
dprintk(1, "%s() returns %d\n", __func__, *i);
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
|
|
{
|
|
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
|
|
|
|
dprintk(1, "%s(%d)\n", __func__, i);
|
|
|
|
if (i >= 4) {
|
|
dprintk(1, "%s() -EINVAL\n", __func__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&dev->lock);
|
|
cx23885_video_mux(dev, i);
|
|
mutex_unlock(&dev->lock);
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_queryctrl(struct file *file, void *priv,
|
|
struct v4l2_queryctrl *qctrl)
|
|
{
|
|
qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
|
|
if (unlikely(qctrl->id == 0))
|
|
return -EINVAL;
|
|
return cx23885_ctrl_query(qctrl);
|
|
}
|
|
|
|
static int vidioc_g_ctrl(struct file *file, void *priv,
|
|
struct v4l2_control *ctl)
|
|
{
|
|
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
|
|
|
|
return cx23885_get_control(dev, ctl);
|
|
}
|
|
|
|
static int vidioc_s_ctrl(struct file *file, void *priv,
|
|
struct v4l2_control *ctl)
|
|
{
|
|
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
|
|
|
|
return cx23885_set_control(dev, ctl);
|
|
}
|
|
|
|
static int vidioc_g_tuner(struct file *file, void *priv,
|
|
struct v4l2_tuner *t)
|
|
{
|
|
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
|
|
|
|
if (unlikely(UNSET == dev->tuner_type))
|
|
return -EINVAL;
|
|
if (0 != t->index)
|
|
return -EINVAL;
|
|
|
|
strcpy(t->name, "Television");
|
|
t->type = V4L2_TUNER_ANALOG_TV;
|
|
t->capability = V4L2_TUNER_CAP_NORM;
|
|
t->rangehigh = 0xffffffffUL;
|
|
t->signal = 0xffff ; /* LOCKED */
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_tuner(struct file *file, void *priv,
|
|
struct v4l2_tuner *t)
|
|
{
|
|
struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
|
|
|
|
if (UNSET == dev->tuner_type)
|
|
return -EINVAL;
|
|
if (0 != t->index)
|
|
return -EINVAL;
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_frequency(struct file *file, void *priv,
|
|
struct v4l2_frequency *f)
|
|
{
|
|
struct cx23885_fh *fh = priv;
|
|
struct cx23885_dev *dev = fh->dev;
|
|
|
|
if (unlikely(UNSET == dev->tuner_type))
|
|
return -EINVAL;
|
|
|
|
/* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
|
|
f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
|
|
f->frequency = dev->freq;
|
|
|
|
call_all(dev, tuner, g_frequency, f);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
|
|
{
|
|
if (unlikely(UNSET == dev->tuner_type))
|
|
return -EINVAL;
|
|
if (unlikely(f->tuner != 0))
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&dev->lock);
|
|
dev->freq = f->frequency;
|
|
|
|
call_all(dev, tuner, s_frequency, f);
|
|
|
|
/* When changing channels it is required to reset TVAUDIO */
|
|
msleep(10);
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_frequency(struct file *file, void *priv,
|
|
struct v4l2_frequency *f)
|
|
{
|
|
struct cx23885_fh *fh = priv;
|
|
struct cx23885_dev *dev = fh->dev;
|
|
|
|
if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
|
|
return -EINVAL;
|
|
if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
|
|
return -EINVAL;
|
|
|
|
return
|
|
cx23885_set_freq(dev, f);
|
|
}
|
|
|
|
/* ----------------------------------------------------------- */
|
|
|
|
static void cx23885_vid_timeout(unsigned long data)
|
|
{
|
|
struct cx23885_dev *dev = (struct cx23885_dev *)data;
|
|
struct cx23885_dmaqueue *q = &dev->vidq;
|
|
struct cx23885_buffer *buf;
|
|
unsigned long flags;
|
|
|
|
cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
|
|
|
|
cx_clear(VID_A_DMA_CTL, 0x11);
|
|
|
|
spin_lock_irqsave(&dev->slock, flags);
|
|
while (!list_empty(&q->active)) {
|
|
buf = list_entry(q->active.next,
|
|
struct cx23885_buffer, vb.queue);
|
|
list_del(&buf->vb.queue);
|
|
buf->vb.state = VIDEOBUF_ERROR;
|
|
wake_up(&buf->vb.done);
|
|
printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
|
|
dev->name, buf, buf->vb.i,
|
|
(unsigned long)buf->risc.dma);
|
|
}
|
|
cx23885_restart_video_queue(dev, q);
|
|
spin_unlock_irqrestore(&dev->slock, flags);
|
|
}
|
|
|
|
int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
|
|
{
|
|
u32 mask, count;
|
|
int handled = 0;
|
|
|
|
mask = cx_read(VID_A_INT_MSK);
|
|
if (0 == (status & mask))
|
|
return handled;
|
|
cx_write(VID_A_INT_STAT, status);
|
|
|
|
dprintk(2, "%s() status = 0x%08x\n", __func__, status);
|
|
/* risc op code error */
|
|
if (status & (1 << 16)) {
|
|
printk(KERN_WARNING "%s/0: video risc op code error\n",
|
|
dev->name);
|
|
cx_clear(VID_A_DMA_CTL, 0x11);
|
|
cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
|
|
}
|
|
|
|
/* risc1 y */
|
|
if (status & 0x01) {
|
|
spin_lock(&dev->slock);
|
|
count = cx_read(VID_A_GPCNT);
|
|
cx23885_video_wakeup(dev, &dev->vidq, count);
|
|
spin_unlock(&dev->slock);
|
|
handled++;
|
|
}
|
|
/* risc2 y */
|
|
if (status & 0x10) {
|
|
dprintk(2, "stopper video\n");
|
|
spin_lock(&dev->slock);
|
|
cx23885_restart_video_queue(dev, &dev->vidq);
|
|
spin_unlock(&dev->slock);
|
|
handled++;
|
|
}
|
|
|
|
return handled;
|
|
}
|
|
|
|
/* ----------------------------------------------------------- */
|
|
/* exported stuff */
|
|
|
|
static const struct v4l2_file_operations video_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = video_open,
|
|
.release = video_release,
|
|
.read = video_read,
|
|
.poll = video_poll,
|
|
.mmap = video_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 = cx23885_vbi_fmt,
|
|
.vidioc_try_fmt_vbi_cap = cx23885_vbi_fmt,
|
|
.vidioc_s_fmt_vbi_cap = cx23885_vbi_fmt,
|
|
.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,
|
|
#ifdef CONFIG_VIDEO_V4L1_COMPAT
|
|
.vidiocgmbuf = vidiocgmbuf,
|
|
#endif
|
|
.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_g_chip_ident = cx23885_g_chip_ident,
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
.vidioc_g_register = cx23885_g_register,
|
|
.vidioc_s_register = cx23885_s_register,
|
|
#endif
|
|
};
|
|
|
|
static struct video_device cx23885_vbi_template;
|
|
static struct video_device cx23885_video_template = {
|
|
.name = "cx23885-video",
|
|
.fops = &video_fops,
|
|
.ioctl_ops = &video_ioctl_ops,
|
|
.tvnorms = CX23885_NORMS,
|
|
.current_norm = V4L2_STD_NTSC_M,
|
|
};
|
|
|
|
static const struct v4l2_file_operations radio_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = video_open,
|
|
.release = video_release,
|
|
.ioctl = video_ioctl2,
|
|
};
|
|
|
|
|
|
void cx23885_video_unregister(struct cx23885_dev *dev)
|
|
{
|
|
dprintk(1, "%s()\n", __func__);
|
|
cx_clear(PCI_INT_MSK, 1);
|
|
|
|
if (dev->video_dev) {
|
|
if (video_is_registered(dev->video_dev))
|
|
video_unregister_device(dev->video_dev);
|
|
else
|
|
video_device_release(dev->video_dev);
|
|
dev->video_dev = NULL;
|
|
|
|
btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
|
|
}
|
|
}
|
|
|
|
int cx23885_video_register(struct cx23885_dev *dev)
|
|
{
|
|
int err;
|
|
|
|
dprintk(1, "%s()\n", __func__);
|
|
spin_lock_init(&dev->slock);
|
|
|
|
/* Initialize VBI template */
|
|
memcpy(&cx23885_vbi_template, &cx23885_video_template,
|
|
sizeof(cx23885_vbi_template));
|
|
strcpy(cx23885_vbi_template.name, "cx23885-vbi");
|
|
|
|
dev->tvnorm = cx23885_video_template.current_norm;
|
|
|
|
/* init video dma queues */
|
|
INIT_LIST_HEAD(&dev->vidq.active);
|
|
INIT_LIST_HEAD(&dev->vidq.queued);
|
|
dev->vidq.timeout.function = cx23885_vid_timeout;
|
|
dev->vidq.timeout.data = (unsigned long)dev;
|
|
init_timer(&dev->vidq.timeout);
|
|
cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
|
|
VID_A_DMA_CTL, 0x11, 0x00);
|
|
|
|
/* Don't enable VBI yet */
|
|
cx_set(PCI_INT_MSK, 1);
|
|
|
|
if (TUNER_ABSENT != dev->tuner_type) {
|
|
struct v4l2_subdev *sd = NULL;
|
|
|
|
if (dev->tuner_addr)
|
|
sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
|
|
&dev->i2c_bus[1].i2c_adap,
|
|
"tuner", "tuner", dev->tuner_addr, NULL);
|
|
else
|
|
sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
|
|
&dev->i2c_bus[1].i2c_adap,
|
|
"tuner", "tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_TV));
|
|
if (sd) {
|
|
struct tuner_setup tun_setup;
|
|
|
|
memset(&tun_setup, 0, sizeof(tun_setup));
|
|
tun_setup.mode_mask = T_ANALOG_TV;
|
|
tun_setup.type = dev->tuner_type;
|
|
tun_setup.addr = v4l2_i2c_subdev_addr(sd);
|
|
tun_setup.tuner_callback = cx23885_tuner_callback;
|
|
|
|
v4l2_subdev_call(sd, tuner, s_type_addr, &tun_setup);
|
|
|
|
if (dev->board == CX23885_BOARD_LEADTEK_WINFAST_PXTV1200) {
|
|
struct xc2028_ctrl ctrl = {
|
|
.fname = XC2028_DEFAULT_FIRMWARE,
|
|
.max_len = 64
|
|
};
|
|
struct v4l2_priv_tun_config cfg = {
|
|
.tuner = dev->tuner_type,
|
|
.priv = &ctrl
|
|
};
|
|
v4l2_subdev_call(sd, tuner, s_config, &cfg);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* register v4l devices */
|
|
dev->video_dev = cx23885_vdev_init(dev, dev->pci,
|
|
&cx23885_video_template, "video");
|
|
err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
|
|
video_nr[dev->nr]);
|
|
if (err < 0) {
|
|
printk(KERN_INFO "%s: can't register video device\n",
|
|
dev->name);
|
|
goto fail_unreg;
|
|
}
|
|
printk(KERN_INFO "%s/0: registered device %s [v4l2]\n",
|
|
dev->name, video_device_node_name(dev->video_dev));
|
|
/* initial device configuration */
|
|
mutex_lock(&dev->lock);
|
|
cx23885_set_tvnorm(dev, dev->tvnorm);
|
|
init_controls(dev);
|
|
cx23885_video_mux(dev, 0);
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
|
|
|
fail_unreg:
|
|
cx23885_video_unregister(dev);
|
|
return err;
|
|
}
|
|
|