2421 lines
57 KiB
C
2421 lines
57 KiB
C
/*
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cx231xx-video.c - driver for Conexant Cx23100/101/102
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USB video capture devices
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Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
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Based on em28xx driver
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Based on cx23885 driver
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Based on cx88 driver
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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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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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/kernel.h>
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#include <linux/bitmap.h>
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#include <linux/usb.h>
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#include <linux/i2c.h>
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#include <linux/version.h>
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#include <linux/mm.h>
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#include <linux/mutex.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-ioctl.h>
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#include <media/v4l2-chip-ident.h>
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#include <media/msp3400.h>
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#include <media/tuner.h>
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#include "dvb_frontend.h"
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#include "cx231xx.h"
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#include "cx231xx-vbi.h"
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#define CX231XX_VERSION_CODE KERNEL_VERSION(0, 0, 1)
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#define DRIVER_AUTHOR "Srinivasa Deevi <srinivasa.deevi@conexant.com>"
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#define DRIVER_DESC "Conexant cx231xx based USB video device driver"
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#define cx231xx_videodbg(fmt, arg...) do {\
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if (video_debug) \
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printk(KERN_INFO "%s %s :"fmt, \
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dev->name, __func__ , ##arg); } while (0)
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static unsigned int isoc_debug;
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module_param(isoc_debug, int, 0644);
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MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
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#define cx231xx_isocdbg(fmt, arg...) \
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do {\
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if (isoc_debug) { \
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printk(KERN_INFO "%s %s :"fmt, \
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dev->name, __func__ , ##arg); \
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} \
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} while (0)
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MODULE_AUTHOR(DRIVER_AUTHOR);
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL");
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static unsigned int card[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
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static unsigned int video_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
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static unsigned int vbi_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
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static unsigned int radio_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
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module_param_array(card, int, NULL, 0444);
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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(card, "card type");
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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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/* supported video standards */
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static struct cx231xx_fmt format[] = {
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{
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.name = "16bpp YUY2, 4:2:2, packed",
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.fourcc = V4L2_PIX_FMT_YUYV,
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.depth = 16,
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.reg = 0,
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},
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};
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/* supported controls */
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/* Common to all boards */
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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 cx231xx_ctrl cx231xx_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 CX231XX_CTLS = ARRAY_SIZE(cx231xx_ctls);
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static const u32 cx231xx_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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#if 0
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V4L2_CID_AUDIO_BALANCE,
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#endif
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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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cx231xx_user_ctrls,
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NULL
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};
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/* ------------------------------------------------------------------
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Video buffer and parser functions
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------------------------------------------------------------------*/
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/*
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* Announces that a buffer were filled and request the next
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*/
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static inline void buffer_filled(struct cx231xx *dev,
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struct cx231xx_dmaqueue *dma_q,
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struct cx231xx_buffer *buf)
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{
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/* Advice that buffer was filled */
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cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
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buf->vb.state = VIDEOBUF_DONE;
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buf->vb.field_count++;
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do_gettimeofday(&buf->vb.ts);
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dev->video_mode.isoc_ctl.buf = NULL;
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list_del(&buf->vb.queue);
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wake_up(&buf->vb.done);
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}
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static inline void print_err_status(struct cx231xx *dev, int packet, int status)
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{
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char *errmsg = "Unknown";
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switch (status) {
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case -ENOENT:
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errmsg = "unlinked synchronuously";
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break;
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case -ECONNRESET:
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errmsg = "unlinked asynchronuously";
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break;
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case -ENOSR:
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errmsg = "Buffer error (overrun)";
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break;
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case -EPIPE:
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errmsg = "Stalled (device not responding)";
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break;
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case -EOVERFLOW:
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errmsg = "Babble (bad cable?)";
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break;
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case -EPROTO:
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errmsg = "Bit-stuff error (bad cable?)";
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break;
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case -EILSEQ:
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errmsg = "CRC/Timeout (could be anything)";
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break;
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case -ETIME:
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errmsg = "Device does not respond";
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break;
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}
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if (packet < 0) {
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cx231xx_isocdbg("URB status %d [%s].\n", status, errmsg);
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} else {
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cx231xx_isocdbg("URB packet %d, status %d [%s].\n",
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packet, status, errmsg);
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}
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}
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/*
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* video-buf generic routine to get the next available buffer
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*/
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static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q,
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struct cx231xx_buffer **buf)
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{
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struct cx231xx_video_mode *vmode =
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container_of(dma_q, struct cx231xx_video_mode, vidq);
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struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
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char *outp;
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if (list_empty(&dma_q->active)) {
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cx231xx_isocdbg("No active queue to serve\n");
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dev->video_mode.isoc_ctl.buf = NULL;
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*buf = NULL;
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return;
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}
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/* Get the next buffer */
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*buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue);
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/* Cleans up buffer - Usefull for testing for frame/URB loss */
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outp = videobuf_to_vmalloc(&(*buf)->vb);
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memset(outp, 0, (*buf)->vb.size);
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dev->video_mode.isoc_ctl.buf = *buf;
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return;
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}
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/*
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* Controls the isoc copy of each urb packet
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*/
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static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb)
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{
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struct cx231xx_buffer *buf;
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struct cx231xx_dmaqueue *dma_q = urb->context;
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unsigned char *outp = NULL;
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int i, rc = 1;
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unsigned char *p_buffer;
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u32 bytes_parsed = 0, buffer_size = 0;
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u8 sav_eav = 0;
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if (!dev)
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return 0;
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if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
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return 0;
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if (urb->status < 0) {
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print_err_status(dev, -1, urb->status);
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if (urb->status == -ENOENT)
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return 0;
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}
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buf = dev->video_mode.isoc_ctl.buf;
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if (buf != NULL)
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outp = videobuf_to_vmalloc(&buf->vb);
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for (i = 0; i < urb->number_of_packets; i++) {
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int status = urb->iso_frame_desc[i].status;
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if (status < 0) {
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print_err_status(dev, i, status);
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if (urb->iso_frame_desc[i].status != -EPROTO)
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continue;
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}
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if (urb->iso_frame_desc[i].actual_length <= 0) {
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/* cx231xx_isocdbg("packet %d is empty",i); - spammy */
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continue;
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}
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if (urb->iso_frame_desc[i].actual_length >
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dev->video_mode.max_pkt_size) {
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cx231xx_isocdbg("packet bigger than packet size");
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continue;
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}
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/* get buffer pointer and length */
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p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
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buffer_size = urb->iso_frame_desc[i].actual_length;
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bytes_parsed = 0;
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if (dma_q->is_partial_line) {
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/* Handle the case of a partial line */
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sav_eav = dma_q->last_sav;
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} else {
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/* Check for a SAV/EAV overlapping
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the buffer boundary */
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sav_eav =
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cx231xx_find_boundary_SAV_EAV(p_buffer,
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dma_q->partial_buf,
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&bytes_parsed);
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}
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sav_eav &= 0xF0;
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/* Get the first line if we have some portion of an SAV/EAV from
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the last buffer or a partial line */
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if (sav_eav) {
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bytes_parsed += cx231xx_get_video_line(dev, dma_q,
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sav_eav, /* SAV/EAV */
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p_buffer + bytes_parsed, /* p_buffer */
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buffer_size - bytes_parsed);/* buf size */
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}
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/* Now parse data that is completely in this buffer */
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/* dma_q->is_partial_line = 0; */
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while (bytes_parsed < buffer_size) {
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u32 bytes_used = 0;
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sav_eav = cx231xx_find_next_SAV_EAV(
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p_buffer + bytes_parsed, /* p_buffer */
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buffer_size - bytes_parsed, /* buf size */
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&bytes_used);/* bytes used to get SAV/EAV */
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bytes_parsed += bytes_used;
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sav_eav &= 0xF0;
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if (sav_eav && (bytes_parsed < buffer_size)) {
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bytes_parsed += cx231xx_get_video_line(dev,
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dma_q, sav_eav, /* SAV/EAV */
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p_buffer + bytes_parsed,/* p_buffer */
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buffer_size - bytes_parsed);/*buf size*/
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}
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}
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/* Save the last four bytes of the buffer so we can check the
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buffer boundary condition next time */
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memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
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bytes_parsed = 0;
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}
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return rc;
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}
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u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf,
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u32 *p_bytes_used)
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{
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u32 bytes_used;
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u8 boundary_bytes[8];
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u8 sav_eav = 0;
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*p_bytes_used = 0;
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/* Create an array of the last 4 bytes of the last buffer and the first
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4 bytes of the current buffer. */
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memcpy(boundary_bytes, partial_buf, 4);
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memcpy(boundary_bytes + 4, p_buffer, 4);
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/* Check for the SAV/EAV in the boundary buffer */
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sav_eav = cx231xx_find_next_SAV_EAV((u8 *)&boundary_bytes, 8,
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&bytes_used);
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if (sav_eav) {
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/* found a boundary SAV/EAV. Updates the bytes used to reflect
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only those used in the new buffer */
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*p_bytes_used = bytes_used - 4;
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}
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return sav_eav;
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}
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u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used)
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{
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u32 i;
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u8 sav_eav = 0;
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/*
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* Don't search if the buffer size is less than 4. It causes a page
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* fault since buffer_size - 4 evaluates to a large number in that
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* case.
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*/
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if (buffer_size < 4) {
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*p_bytes_used = buffer_size;
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return 0;
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}
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for (i = 0; i < (buffer_size - 3); i++) {
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if ((p_buffer[i] == 0xFF) &&
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(p_buffer[i + 1] == 0x00) && (p_buffer[i + 2] == 0x00)) {
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*p_bytes_used = i + 4;
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sav_eav = p_buffer[i + 3];
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return sav_eav;
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}
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}
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*p_bytes_used = buffer_size;
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return 0;
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}
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u32 cx231xx_get_video_line(struct cx231xx *dev,
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struct cx231xx_dmaqueue *dma_q, u8 sav_eav,
|
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u8 *p_buffer, u32 buffer_size)
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{
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u32 bytes_copied = 0;
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int current_field = -1;
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|
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switch (sav_eav) {
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case SAV_ACTIVE_VIDEO_FIELD1:
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/* looking for skipped line which occurred in PAL 720x480 mode.
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In this case, there will be no active data contained
|
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between the SAV and EAV */
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if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
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(p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
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((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
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(p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
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(p_buffer[3] == EAV_VBLANK_FIELD1) ||
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(p_buffer[3] == EAV_VBLANK_FIELD2)))
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return bytes_copied;
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current_field = 1;
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break;
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|
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case SAV_ACTIVE_VIDEO_FIELD2:
|
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/* looking for skipped line which occurred in PAL 720x480 mode.
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|
In this case, there will be no active data contained between
|
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the SAV and EAV */
|
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if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
|
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(p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
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((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
|
|
(p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
|
|
(p_buffer[3] == EAV_VBLANK_FIELD1) ||
|
|
(p_buffer[3] == EAV_VBLANK_FIELD2)))
|
|
return bytes_copied;
|
|
current_field = 2;
|
|
break;
|
|
}
|
|
|
|
dma_q->last_sav = sav_eav;
|
|
|
|
bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer,
|
|
buffer_size, current_field);
|
|
|
|
return bytes_copied;
|
|
}
|
|
|
|
u32 cx231xx_copy_video_line(struct cx231xx *dev,
|
|
struct cx231xx_dmaqueue *dma_q, u8 *p_line,
|
|
u32 length, int field_number)
|
|
{
|
|
u32 bytes_to_copy;
|
|
struct cx231xx_buffer *buf;
|
|
u32 _line_size = dev->width * 2;
|
|
|
|
if (dma_q->current_field != field_number)
|
|
cx231xx_reset_video_buffer(dev, dma_q);
|
|
|
|
/* get the buffer pointer */
|
|
buf = dev->video_mode.isoc_ctl.buf;
|
|
|
|
/* Remember the field number for next time */
|
|
dma_q->current_field = field_number;
|
|
|
|
bytes_to_copy = dma_q->bytes_left_in_line;
|
|
if (bytes_to_copy > length)
|
|
bytes_to_copy = length;
|
|
|
|
if (dma_q->lines_completed >= dma_q->lines_per_field) {
|
|
dma_q->bytes_left_in_line -= bytes_to_copy;
|
|
dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ?
|
|
0 : 1;
|
|
return 0;
|
|
}
|
|
|
|
dma_q->is_partial_line = 1;
|
|
|
|
/* If we don't have a buffer, just return the number of bytes we would
|
|
have copied if we had a buffer. */
|
|
if (!buf) {
|
|
dma_q->bytes_left_in_line -= bytes_to_copy;
|
|
dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0)
|
|
? 0 : 1;
|
|
return bytes_to_copy;
|
|
}
|
|
|
|
/* copy the data to video buffer */
|
|
cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy);
|
|
|
|
dma_q->pos += bytes_to_copy;
|
|
dma_q->bytes_left_in_line -= bytes_to_copy;
|
|
|
|
if (dma_q->bytes_left_in_line == 0) {
|
|
dma_q->bytes_left_in_line = _line_size;
|
|
dma_q->lines_completed++;
|
|
dma_q->is_partial_line = 0;
|
|
|
|
if (cx231xx_is_buffer_done(dev, dma_q) && buf) {
|
|
buffer_filled(dev, dma_q, buf);
|
|
|
|
dma_q->pos = 0;
|
|
buf = NULL;
|
|
dma_q->lines_completed = 0;
|
|
}
|
|
}
|
|
|
|
return bytes_to_copy;
|
|
}
|
|
|
|
void cx231xx_reset_video_buffer(struct cx231xx *dev,
|
|
struct cx231xx_dmaqueue *dma_q)
|
|
{
|
|
struct cx231xx_buffer *buf;
|
|
|
|
/* handle the switch from field 1 to field 2 */
|
|
if (dma_q->current_field == 1) {
|
|
if (dma_q->lines_completed >= dma_q->lines_per_field)
|
|
dma_q->field1_done = 1;
|
|
else
|
|
dma_q->field1_done = 0;
|
|
}
|
|
|
|
buf = dev->video_mode.isoc_ctl.buf;
|
|
|
|
if (buf == NULL) {
|
|
u8 *outp = NULL;
|
|
/* first try to get the buffer */
|
|
get_next_buf(dma_q, &buf);
|
|
|
|
if (buf)
|
|
outp = videobuf_to_vmalloc(&buf->vb);
|
|
|
|
dma_q->pos = 0;
|
|
dma_q->field1_done = 0;
|
|
dma_q->current_field = -1;
|
|
}
|
|
|
|
/* reset the counters */
|
|
dma_q->bytes_left_in_line = dev->width << 1;
|
|
dma_q->lines_completed = 0;
|
|
}
|
|
|
|
int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
|
|
u8 *p_buffer, u32 bytes_to_copy)
|
|
{
|
|
u8 *p_out_buffer = NULL;
|
|
u32 current_line_bytes_copied = 0;
|
|
struct cx231xx_buffer *buf;
|
|
u32 _line_size = dev->width << 1;
|
|
void *startwrite;
|
|
int offset, lencopy;
|
|
|
|
buf = dev->video_mode.isoc_ctl.buf;
|
|
|
|
if (buf == NULL)
|
|
return -1;
|
|
|
|
p_out_buffer = videobuf_to_vmalloc(&buf->vb);
|
|
|
|
current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;
|
|
|
|
/* Offset field 2 one line from the top of the buffer */
|
|
offset = (dma_q->current_field == 1) ? 0 : _line_size;
|
|
|
|
/* Offset for field 2 */
|
|
startwrite = p_out_buffer + offset;
|
|
|
|
/* lines already completed in the current field */
|
|
startwrite += (dma_q->lines_completed * _line_size * 2);
|
|
|
|
/* bytes already completed in the current line */
|
|
startwrite += current_line_bytes_copied;
|
|
|
|
lencopy = dma_q->bytes_left_in_line > bytes_to_copy ?
|
|
bytes_to_copy : dma_q->bytes_left_in_line;
|
|
|
|
if ((u8 *)(startwrite + lencopy) > (u8 *)(p_out_buffer + buf->vb.size))
|
|
return 0;
|
|
|
|
/* The below copies the UYVY data straight into video buffer */
|
|
cx231xx_swab((u16 *) p_buffer, (u16 *) startwrite, (u16) lencopy);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void cx231xx_swab(u16 *from, u16 *to, u16 len)
|
|
{
|
|
u16 i;
|
|
|
|
if (len <= 0)
|
|
return;
|
|
|
|
for (i = 0; i < len / 2; i++)
|
|
to[i] = (from[i] << 8) | (from[i] >> 8);
|
|
}
|
|
|
|
u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q)
|
|
{
|
|
u8 buffer_complete = 0;
|
|
|
|
/* Dual field stream */
|
|
buffer_complete = ((dma_q->current_field == 2) &&
|
|
(dma_q->lines_completed >= dma_q->lines_per_field) &&
|
|
dma_q->field1_done);
|
|
|
|
return buffer_complete;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------
|
|
Videobuf operations
|
|
------------------------------------------------------------------*/
|
|
|
|
static int
|
|
buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
|
|
{
|
|
struct cx231xx_fh *fh = vq->priv_data;
|
|
struct cx231xx *dev = fh->dev;
|
|
struct v4l2_frequency f;
|
|
|
|
*size = (fh->dev->width * fh->dev->height * dev->format->depth + 7)>>3;
|
|
if (0 == *count)
|
|
*count = CX231XX_DEF_BUF;
|
|
|
|
if (*count < CX231XX_MIN_BUF)
|
|
*count = CX231XX_MIN_BUF;
|
|
|
|
/* Ask tuner to go to analog mode */
|
|
memset(&f, 0, sizeof(f));
|
|
f.frequency = dev->ctl_freq;
|
|
f.type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
|
|
|
|
call_all(dev, tuner, s_frequency, &f);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* This is called *without* dev->slock held; please keep it that way */
|
|
static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf)
|
|
{
|
|
struct cx231xx_fh *fh = vq->priv_data;
|
|
struct cx231xx *dev = fh->dev;
|
|
unsigned long flags = 0;
|
|
|
|
if (in_interrupt())
|
|
BUG();
|
|
|
|
/* We used to wait for the buffer to finish here, but this didn't work
|
|
because, as we were keeping the state as VIDEOBUF_QUEUED,
|
|
videobuf_queue_cancel marked it as finished for us.
|
|
(Also, it could wedge forever if the hardware was misconfigured.)
|
|
|
|
This should be safe; by the time we get here, the buffer isn't
|
|
queued anymore. If we ever start marking the buffers as
|
|
VIDEOBUF_ACTIVE, it won't be, though.
|
|
*/
|
|
spin_lock_irqsave(&dev->video_mode.slock, flags);
|
|
if (dev->video_mode.isoc_ctl.buf == buf)
|
|
dev->video_mode.isoc_ctl.buf = NULL;
|
|
spin_unlock_irqrestore(&dev->video_mode.slock, flags);
|
|
|
|
videobuf_vmalloc_free(&buf->vb);
|
|
buf->vb.state = VIDEOBUF_NEEDS_INIT;
|
|
}
|
|
|
|
static int
|
|
buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
|
|
enum v4l2_field field)
|
|
{
|
|
struct cx231xx_fh *fh = vq->priv_data;
|
|
struct cx231xx_buffer *buf =
|
|
container_of(vb, struct cx231xx_buffer, vb);
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc = 0, urb_init = 0;
|
|
|
|
/* The only currently supported format is 16 bits/pixel */
|
|
buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth
|
|
+ 7) >> 3;
|
|
if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
|
|
return -EINVAL;
|
|
|
|
buf->vb.width = dev->width;
|
|
buf->vb.height = dev->height;
|
|
buf->vb.field = field;
|
|
|
|
if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
|
|
rc = videobuf_iolock(vq, &buf->vb, NULL);
|
|
if (rc < 0)
|
|
goto fail;
|
|
}
|
|
|
|
if (!dev->video_mode.isoc_ctl.num_bufs)
|
|
urb_init = 1;
|
|
|
|
if (urb_init) {
|
|
rc = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS,
|
|
CX231XX_NUM_BUFS,
|
|
dev->video_mode.max_pkt_size,
|
|
cx231xx_isoc_copy);
|
|
if (rc < 0)
|
|
goto fail;
|
|
}
|
|
|
|
buf->vb.state = VIDEOBUF_PREPARED;
|
|
return 0;
|
|
|
|
fail:
|
|
free_buffer(vq, buf);
|
|
return rc;
|
|
}
|
|
|
|
static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
|
|
{
|
|
struct cx231xx_buffer *buf =
|
|
container_of(vb, struct cx231xx_buffer, vb);
|
|
struct cx231xx_fh *fh = vq->priv_data;
|
|
struct cx231xx *dev = fh->dev;
|
|
struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq;
|
|
|
|
buf->vb.state = VIDEOBUF_QUEUED;
|
|
list_add_tail(&buf->vb.queue, &vidq->active);
|
|
|
|
}
|
|
|
|
static void buffer_release(struct videobuf_queue *vq,
|
|
struct videobuf_buffer *vb)
|
|
{
|
|
struct cx231xx_buffer *buf =
|
|
container_of(vb, struct cx231xx_buffer, vb);
|
|
struct cx231xx_fh *fh = vq->priv_data;
|
|
struct cx231xx *dev = (struct cx231xx *)fh->dev;
|
|
|
|
cx231xx_isocdbg("cx231xx: called buffer_release\n");
|
|
|
|
free_buffer(vq, buf);
|
|
}
|
|
|
|
static struct videobuf_queue_ops cx231xx_video_qops = {
|
|
.buf_setup = buffer_setup,
|
|
.buf_prepare = buffer_prepare,
|
|
.buf_queue = buffer_queue,
|
|
.buf_release = buffer_release,
|
|
};
|
|
|
|
/********************* v4l2 interface **************************************/
|
|
|
|
void video_mux(struct cx231xx *dev, int index)
|
|
{
|
|
dev->video_input = index;
|
|
dev->ctl_ainput = INPUT(index)->amux;
|
|
|
|
cx231xx_set_video_input_mux(dev, index);
|
|
|
|
cx25840_call(dev, video, s_routing, INPUT(index)->vmux, 0, 0);
|
|
|
|
cx231xx_set_audio_input(dev, dev->ctl_ainput);
|
|
|
|
cx231xx_info("video_mux : %d\n", index);
|
|
|
|
/* do mode control overrides if required */
|
|
cx231xx_do_mode_ctrl_overrides(dev);
|
|
}
|
|
|
|
/* Usage lock check functions */
|
|
static int res_get(struct cx231xx_fh *fh)
|
|
{
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc = 0;
|
|
|
|
/* This instance already has stream_on */
|
|
if (fh->stream_on)
|
|
return rc;
|
|
|
|
if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
|
if (dev->stream_on)
|
|
return -EBUSY;
|
|
dev->stream_on = 1;
|
|
} else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
|
|
if (dev->vbi_stream_on)
|
|
return -EBUSY;
|
|
dev->vbi_stream_on = 1;
|
|
} else
|
|
return -EINVAL;
|
|
|
|
fh->stream_on = 1;
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int res_check(struct cx231xx_fh *fh)
|
|
{
|
|
return fh->stream_on;
|
|
}
|
|
|
|
static void res_free(struct cx231xx_fh *fh)
|
|
{
|
|
struct cx231xx *dev = fh->dev;
|
|
|
|
fh->stream_on = 0;
|
|
|
|
if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
dev->stream_on = 0;
|
|
if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
|
|
dev->vbi_stream_on = 0;
|
|
}
|
|
|
|
static int check_dev(struct cx231xx *dev)
|
|
{
|
|
if (dev->state & DEV_DISCONNECTED) {
|
|
cx231xx_errdev("v4l2 ioctl: device not present\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (dev->state & DEV_MISCONFIGURED) {
|
|
cx231xx_errdev("v4l2 ioctl: device is misconfigured; "
|
|
"close and open it again\n");
|
|
return -EIO;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void get_scale(struct cx231xx *dev,
|
|
unsigned int width, unsigned int height,
|
|
unsigned int *hscale, unsigned int *vscale)
|
|
{
|
|
unsigned int maxw = norm_maxw(dev);
|
|
unsigned int maxh = norm_maxh(dev);
|
|
|
|
*hscale = (((unsigned long)maxw) << 12) / width - 4096L;
|
|
if (*hscale >= 0x4000)
|
|
*hscale = 0x3fff;
|
|
|
|
*vscale = (((unsigned long)maxh) << 12) / height - 4096L;
|
|
if (*vscale >= 0x4000)
|
|
*vscale = 0x3fff;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------
|
|
IOCTL vidioc handling
|
|
------------------------------------------------------------------*/
|
|
|
|
static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
f->fmt.pix.width = dev->width;
|
|
f->fmt.pix.height = dev->height;
|
|
f->fmt.pix.pixelformat = dev->format->fourcc;
|
|
f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3;
|
|
f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height;
|
|
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
|
|
|
|
f->fmt.pix.field = V4L2_FIELD_INTERLACED;
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(format); i++)
|
|
if (format[i].fourcc == fourcc)
|
|
return &format[i];
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
unsigned int width = f->fmt.pix.width;
|
|
unsigned int height = f->fmt.pix.height;
|
|
unsigned int maxw = norm_maxw(dev);
|
|
unsigned int maxh = norm_maxh(dev);
|
|
unsigned int hscale, vscale;
|
|
struct cx231xx_fmt *fmt;
|
|
|
|
fmt = format_by_fourcc(f->fmt.pix.pixelformat);
|
|
if (!fmt) {
|
|
cx231xx_videodbg("Fourcc format (%08x) invalid.\n",
|
|
f->fmt.pix.pixelformat);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* width must even because of the YUYV format
|
|
height must be even because of interlacing */
|
|
v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 1, 0);
|
|
|
|
get_scale(dev, width, height, &hscale, &vscale);
|
|
|
|
width = (((unsigned long)maxw) << 12) / (hscale + 4096L);
|
|
height = (((unsigned long)maxh) << 12) / (vscale + 4096L);
|
|
|
|
f->fmt.pix.width = width;
|
|
f->fmt.pix.height = height;
|
|
f->fmt.pix.pixelformat = fmt->fourcc;
|
|
f->fmt.pix.bytesperline = (dev->width * fmt->depth + 7) >> 3;
|
|
f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
|
|
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
|
|
f->fmt.pix.field = V4L2_FIELD_INTERLACED;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc;
|
|
struct cx231xx_fmt *fmt;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
vidioc_try_fmt_vid_cap(file, priv, f);
|
|
|
|
fmt = format_by_fourcc(f->fmt.pix.pixelformat);
|
|
if (!fmt) {
|
|
rc = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if (videobuf_queue_is_busy(&fh->vb_vidq)) {
|
|
cx231xx_errdev("%s queue busy\n", __func__);
|
|
rc = -EBUSY;
|
|
goto out;
|
|
}
|
|
|
|
if (dev->stream_on && !fh->stream_on) {
|
|
cx231xx_errdev("%s device in use by another fh\n", __func__);
|
|
rc = -EBUSY;
|
|
goto out;
|
|
}
|
|
|
|
/* set new image size */
|
|
dev->width = f->fmt.pix.width;
|
|
dev->height = f->fmt.pix.height;
|
|
dev->format = fmt;
|
|
get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
|
|
|
|
call_all(dev, video, s_fmt, f);
|
|
|
|
/* Set the correct alternate setting for this resolution */
|
|
cx231xx_resolution_set(dev);
|
|
|
|
out:
|
|
mutex_unlock(&dev->lock);
|
|
return rc;
|
|
}
|
|
|
|
static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id * id)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
|
|
*id = dev->norm;
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
struct v4l2_format f;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
cx231xx_info("vidioc_s_std : 0x%x\n", (unsigned int)*norm);
|
|
|
|
mutex_lock(&dev->lock);
|
|
dev->norm = *norm;
|
|
|
|
/* Adjusts width/height, if needed */
|
|
f.fmt.pix.width = dev->width;
|
|
f.fmt.pix.height = dev->height;
|
|
vidioc_try_fmt_vid_cap(file, priv, &f);
|
|
|
|
/* set new image size */
|
|
dev->width = f.fmt.pix.width;
|
|
dev->height = f.fmt.pix.height;
|
|
get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
|
|
|
|
call_all(dev, core, s_std, dev->norm);
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
cx231xx_resolution_set(dev);
|
|
|
|
/* do mode control overrides */
|
|
cx231xx_do_mode_ctrl_overrides(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const char *iname[] = {
|
|
[CX231XX_VMUX_COMPOSITE1] = "Composite1",
|
|
[CX231XX_VMUX_SVIDEO] = "S-Video",
|
|
[CX231XX_VMUX_TELEVISION] = "Television",
|
|
[CX231XX_VMUX_CABLE] = "Cable TV",
|
|
[CX231XX_VMUX_DVB] = "DVB",
|
|
[CX231XX_VMUX_DEBUG] = "for debug only",
|
|
};
|
|
|
|
static int vidioc_enum_input(struct file *file, void *priv,
|
|
struct v4l2_input *i)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
unsigned int n;
|
|
|
|
n = i->index;
|
|
if (n >= MAX_CX231XX_INPUT)
|
|
return -EINVAL;
|
|
if (0 == INPUT(n)->type)
|
|
return -EINVAL;
|
|
|
|
i->index = n;
|
|
i->type = V4L2_INPUT_TYPE_CAMERA;
|
|
|
|
strcpy(i->name, iname[INPUT(n)->type]);
|
|
|
|
if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) ||
|
|
(CX231XX_VMUX_CABLE == INPUT(n)->type))
|
|
i->type = V4L2_INPUT_TYPE_TUNER;
|
|
|
|
i->std = dev->vdev->tvnorms;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
|
|
*i = dev->video_input;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
if (i >= MAX_CX231XX_INPUT)
|
|
return -EINVAL;
|
|
if (0 == INPUT(i)->type)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
video_mux(dev, i);
|
|
|
|
mutex_unlock(&dev->lock);
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
|
|
switch (a->index) {
|
|
case CX231XX_AMUX_VIDEO:
|
|
strcpy(a->name, "Television");
|
|
break;
|
|
case CX231XX_AMUX_LINE_IN:
|
|
strcpy(a->name, "Line In");
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
a->index = dev->ctl_ainput;
|
|
a->capability = V4L2_AUDCAP_STEREO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int status = 0;
|
|
|
|
/* Doesn't allow manual routing */
|
|
if (a->index != dev->ctl_ainput)
|
|
return -EINVAL;
|
|
|
|
dev->ctl_ainput = INPUT(a->index)->amux;
|
|
status = cx231xx_set_audio_input(dev, dev->ctl_ainput);
|
|
|
|
return status;
|
|
}
|
|
|
|
static int vidioc_queryctrl(struct file *file, void *priv,
|
|
struct v4l2_queryctrl *qc)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int id = qc->id;
|
|
int i;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
qc->id = v4l2_ctrl_next(ctrl_classes, qc->id);
|
|
if (unlikely(qc->id == 0))
|
|
return -EINVAL;
|
|
|
|
memset(qc, 0, sizeof(*qc));
|
|
|
|
qc->id = id;
|
|
|
|
if (qc->id < V4L2_CID_BASE || qc->id >= V4L2_CID_LASTP1)
|
|
return -EINVAL;
|
|
|
|
for (i = 0; i < CX231XX_CTLS; i++)
|
|
if (cx231xx_ctls[i].v.id == qc->id)
|
|
break;
|
|
|
|
if (i == CX231XX_CTLS) {
|
|
*qc = no_ctl;
|
|
return 0;
|
|
}
|
|
*qc = cx231xx_ctls[i].v;
|
|
|
|
mutex_lock(&dev->lock);
|
|
call_all(dev, core, queryctrl, qc);
|
|
mutex_unlock(&dev->lock);
|
|
|
|
if (qc->type)
|
|
return 0;
|
|
else
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int vidioc_g_ctrl(struct file *file, void *priv,
|
|
struct v4l2_control *ctrl)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
mutex_lock(&dev->lock);
|
|
call_all(dev, core, g_ctrl, ctrl);
|
|
mutex_unlock(&dev->lock);
|
|
return rc;
|
|
}
|
|
|
|
static int vidioc_s_ctrl(struct file *file, void *priv,
|
|
struct v4l2_control *ctrl)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
mutex_lock(&dev->lock);
|
|
call_all(dev, core, s_ctrl, ctrl);
|
|
mutex_unlock(&dev->lock);
|
|
return rc;
|
|
}
|
|
|
|
static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
if (0 != t->index)
|
|
return -EINVAL;
|
|
|
|
strcpy(t->name, "Tuner");
|
|
|
|
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 cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
if (0 != t->index)
|
|
return -EINVAL;
|
|
#if 0
|
|
mutex_lock(&dev->lock);
|
|
call_all(dev, tuner, s_tuner, t);
|
|
mutex_unlock(&dev->lock);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_frequency(struct file *file, void *priv,
|
|
struct v4l2_frequency *f)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
|
|
mutex_lock(&dev->lock);
|
|
f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
|
|
f->frequency = dev->ctl_freq;
|
|
|
|
call_all(dev, tuner, g_frequency, f);
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_frequency(struct file *file, void *priv,
|
|
struct v4l2_frequency *f)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
if (0 != f->tuner)
|
|
return -EINVAL;
|
|
|
|
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;
|
|
|
|
/* set pre channel change settings in DIF first */
|
|
rc = cx231xx_tuner_pre_channel_change(dev);
|
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
dev->ctl_freq = f->frequency;
|
|
|
|
if (dev->tuner_type == TUNER_XC5000) {
|
|
if (dev->cx231xx_set_analog_freq != NULL)
|
|
dev->cx231xx_set_analog_freq(dev, f->frequency);
|
|
} else
|
|
call_all(dev, tuner, s_frequency, f);
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
/* set post channel change settings in DIF first */
|
|
rc = cx231xx_tuner_post_channel_change(dev);
|
|
|
|
cx231xx_info("Set New FREQUENCY to %d\n", f->frequency);
|
|
|
|
return rc;
|
|
}
|
|
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
|
|
/*
|
|
-R, --list-registers=type=<host/i2cdrv/i2caddr>,
|
|
chip=<chip>[,min=<addr>,max=<addr>]
|
|
dump registers from <min> to <max> [VIDIOC_DBG_G_REGISTER]
|
|
-r, --set-register=type=<host/i2cdrv/i2caddr>,
|
|
chip=<chip>,reg=<addr>,val=<val>
|
|
set the register [VIDIOC_DBG_S_REGISTER]
|
|
|
|
if type == host, then <chip> is the hosts chip ID (default 0)
|
|
if type == i2cdrv (default), then <chip> is the I2C driver name or ID
|
|
if type == i2caddr, then <chip> is the 7-bit I2C address
|
|
*/
|
|
|
|
static int vidioc_g_register(struct file *file, void *priv,
|
|
struct v4l2_dbg_register *reg)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int ret = 0;
|
|
u8 value[4] = { 0, 0, 0, 0 };
|
|
u32 data = 0;
|
|
|
|
switch (reg->match.type) {
|
|
case V4L2_CHIP_MATCH_HOST:
|
|
switch (reg->match.addr) {
|
|
case 0: /* Cx231xx - internal registers */
|
|
ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
|
|
(u16)reg->reg, value, 4);
|
|
reg->val = value[0] | value[1] << 8 |
|
|
value[2] << 16 | value[3] << 24;
|
|
break;
|
|
case 1: /* AFE - read byte */
|
|
ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
|
|
(u16)reg->reg, 2, &data, 1);
|
|
reg->val = le32_to_cpu(data & 0xff);
|
|
break;
|
|
case 14: /* AFE - read dword */
|
|
ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
|
|
(u16)reg->reg, 2, &data, 4);
|
|
reg->val = le32_to_cpu(data);
|
|
break;
|
|
case 2: /* Video Block - read byte */
|
|
ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
|
|
(u16)reg->reg, 2, &data, 1);
|
|
reg->val = le32_to_cpu(data & 0xff);
|
|
break;
|
|
case 24: /* Video Block - read dword */
|
|
ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
|
|
(u16)reg->reg, 2, &data, 4);
|
|
reg->val = le32_to_cpu(data);
|
|
break;
|
|
case 3: /* I2S block - read byte */
|
|
ret = cx231xx_read_i2c_data(dev,
|
|
I2S_BLK_DEVICE_ADDRESS,
|
|
(u16)reg->reg, 1,
|
|
&data, 1);
|
|
reg->val = le32_to_cpu(data & 0xff);
|
|
break;
|
|
case 34: /* I2S Block - read dword */
|
|
ret =
|
|
cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
|
|
(u16)reg->reg, 1, &data, 4);
|
|
reg->val = le32_to_cpu(data);
|
|
break;
|
|
}
|
|
return ret < 0 ? ret : 0;
|
|
|
|
case V4L2_CHIP_MATCH_I2C_DRIVER:
|
|
call_all(dev, core, g_register, reg);
|
|
return 0;
|
|
case V4L2_CHIP_MATCH_I2C_ADDR:
|
|
/* Not supported yet */
|
|
return -EINVAL;
|
|
default:
|
|
if (!v4l2_chip_match_host(®->match))
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&dev->lock);
|
|
call_all(dev, core, g_register, reg);
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int vidioc_s_register(struct file *file, void *priv,
|
|
struct v4l2_dbg_register *reg)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int ret = 0;
|
|
__le64 buf;
|
|
u32 value;
|
|
u8 data[4] = { 0, 0, 0, 0 };
|
|
|
|
buf = cpu_to_le64(reg->val);
|
|
|
|
switch (reg->match.type) {
|
|
case V4L2_CHIP_MATCH_HOST:
|
|
{
|
|
value = (u32) buf & 0xffffffff;
|
|
|
|
switch (reg->match.addr) {
|
|
case 0: /* cx231xx internal registers */
|
|
data[0] = (u8) value;
|
|
data[1] = (u8) (value >> 8);
|
|
data[2] = (u8) (value >> 16);
|
|
data[3] = (u8) (value >> 24);
|
|
ret = cx231xx_write_ctrl_reg(dev,
|
|
VRT_SET_REGISTER,
|
|
(u16)reg->reg, data,
|
|
4);
|
|
break;
|
|
case 1: /* AFE - read byte */
|
|
ret = cx231xx_write_i2c_data(dev,
|
|
AFE_DEVICE_ADDRESS,
|
|
(u16)reg->reg, 2,
|
|
value, 1);
|
|
break;
|
|
case 14: /* AFE - read dword */
|
|
ret = cx231xx_write_i2c_data(dev,
|
|
AFE_DEVICE_ADDRESS,
|
|
(u16)reg->reg, 2,
|
|
value, 4);
|
|
break;
|
|
case 2: /* Video Block - read byte */
|
|
ret =
|
|
cx231xx_write_i2c_data(dev,
|
|
VID_BLK_I2C_ADDRESS,
|
|
(u16)reg->reg, 2,
|
|
value, 1);
|
|
break;
|
|
case 24: /* Video Block - read dword */
|
|
ret =
|
|
cx231xx_write_i2c_data(dev,
|
|
VID_BLK_I2C_ADDRESS,
|
|
(u16)reg->reg, 2,
|
|
value, 4);
|
|
break;
|
|
case 3: /* I2S block - read byte */
|
|
ret =
|
|
cx231xx_write_i2c_data(dev,
|
|
I2S_BLK_DEVICE_ADDRESS,
|
|
(u16)reg->reg, 1,
|
|
value, 1);
|
|
break;
|
|
case 34: /* I2S block - read dword */
|
|
ret =
|
|
cx231xx_write_i2c_data(dev,
|
|
I2S_BLK_DEVICE_ADDRESS,
|
|
(u16)reg->reg, 1,
|
|
value, 4);
|
|
break;
|
|
}
|
|
}
|
|
return ret < 0 ? ret : 0;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
mutex_lock(&dev->lock);
|
|
call_all(dev, core, s_register, reg);
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
static int vidioc_cropcap(struct file *file, void *priv,
|
|
struct v4l2_cropcap *cc)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
|
|
if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
|
|
cc->bounds.left = 0;
|
|
cc->bounds.top = 0;
|
|
cc->bounds.width = dev->width;
|
|
cc->bounds.height = dev->height;
|
|
cc->defrect = cc->bounds;
|
|
cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */
|
|
cc->pixelaspect.denominator = 59;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_streamon(struct file *file, void *priv,
|
|
enum v4l2_buf_type type)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
mutex_lock(&dev->lock);
|
|
rc = res_get(fh);
|
|
|
|
if (likely(rc >= 0))
|
|
rc = videobuf_streamon(&fh->vb_vidq);
|
|
|
|
call_all(dev, video, s_stream, 1);
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int vidioc_streamoff(struct file *file, void *priv,
|
|
enum v4l2_buf_type type)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
if ((fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
|
|
(fh->type != V4L2_BUF_TYPE_VBI_CAPTURE))
|
|
return -EINVAL;
|
|
if (type != fh->type)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
cx25840_call(dev, video, s_stream, 0);
|
|
|
|
videobuf_streamoff(&fh->vb_vidq);
|
|
res_free(fh);
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_querycap(struct file *file, void *priv,
|
|
struct v4l2_capability *cap)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
|
|
strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
|
|
strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
|
|
usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
|
|
|
|
cap->version = CX231XX_VERSION_CODE;
|
|
|
|
cap->capabilities = V4L2_CAP_VBI_CAPTURE |
|
|
#if 0
|
|
V4L2_CAP_SLICED_VBI_CAPTURE |
|
|
#endif
|
|
V4L2_CAP_VIDEO_CAPTURE |
|
|
V4L2_CAP_AUDIO |
|
|
V4L2_CAP_READWRITE |
|
|
V4L2_CAP_STREAMING;
|
|
|
|
if (dev->tuner_type != TUNER_ABSENT)
|
|
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(format)))
|
|
return -EINVAL;
|
|
|
|
strlcpy(f->description, format[f->index].name, sizeof(f->description));
|
|
f->pixelformat = format[f->index].fourcc;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Sliced VBI ioctls */
|
|
static int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
f->fmt.sliced.service_set = 0;
|
|
|
|
call_all(dev, video, g_fmt, f);
|
|
|
|
if (f->fmt.sliced.service_set == 0)
|
|
rc = -EINVAL;
|
|
|
|
mutex_unlock(&dev->lock);
|
|
return rc;
|
|
}
|
|
|
|
static int vidioc_try_set_sliced_vbi_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
mutex_lock(&dev->lock);
|
|
call_all(dev, video, g_fmt, f);
|
|
mutex_unlock(&dev->lock);
|
|
|
|
if (f->fmt.sliced.service_set == 0)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* RAW VBI ioctls */
|
|
|
|
static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
|
|
f->fmt.vbi.sampling_rate = (dev->norm & V4L2_STD_625_50) ?
|
|
35468950 : 28636363;
|
|
f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
|
|
f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
|
|
f->fmt.vbi.offset = 64 * 4;
|
|
f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
|
|
PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
|
|
f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
|
|
PAL_VBI_LINES : NTSC_VBI_LINES;
|
|
f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
|
|
PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
|
|
f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
|
|
if (dev->vbi_stream_on && !fh->stream_on) {
|
|
cx231xx_errdev("%s device in use by another fh\n", __func__);
|
|
return -EBUSY;
|
|
}
|
|
|
|
f->type = V4L2_BUF_TYPE_VBI_CAPTURE;
|
|
f->fmt.vbi.sampling_rate = (dev->norm & V4L2_STD_625_50) ?
|
|
35468950 : 28636363;
|
|
f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
|
|
f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
|
|
f->fmt.vbi.offset = 244;
|
|
f->fmt.vbi.flags = 0;
|
|
f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
|
|
PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
|
|
f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
|
|
PAL_VBI_LINES : NTSC_VBI_LINES;
|
|
f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
|
|
PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
|
|
f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
static int vidioc_reqbufs(struct file *file, void *priv,
|
|
struct v4l2_requestbuffers *rb)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
return videobuf_reqbufs(&fh->vb_vidq, rb);
|
|
}
|
|
|
|
static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *b)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
return videobuf_querybuf(&fh->vb_vidq, b);
|
|
}
|
|
|
|
static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
return videobuf_qbuf(&fh->vb_vidq, b);
|
|
}
|
|
|
|
static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
|
|
}
|
|
|
|
#ifdef CONFIG_VIDEO_V4L1_COMPAT
|
|
static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
|
|
{
|
|
struct cx231xx_fh *fh = priv;
|
|
|
|
return videobuf_cgmbuf(&fh->vb_vidq, mbuf, 8);
|
|
}
|
|
#endif
|
|
|
|
/* ----------------------------------------------------------- */
|
|
/* RADIO ESPECIFIC IOCTLS */
|
|
/* ----------------------------------------------------------- */
|
|
|
|
static int radio_querycap(struct file *file, void *priv,
|
|
struct v4l2_capability *cap)
|
|
{
|
|
struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
|
|
|
|
strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
|
|
strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
|
|
usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
|
|
|
|
cap->version = CX231XX_VERSION_CODE;
|
|
cap->capabilities = V4L2_CAP_TUNER;
|
|
return 0;
|
|
}
|
|
|
|
static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
|
|
{
|
|
struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
|
|
|
|
if (unlikely(t->index > 0))
|
|
return -EINVAL;
|
|
|
|
strcpy(t->name, "Radio");
|
|
t->type = V4L2_TUNER_RADIO;
|
|
|
|
mutex_lock(&dev->lock);
|
|
call_all(dev, tuner, s_tuner, t);
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int radio_enum_input(struct file *file, void *priv, struct v4l2_input *i)
|
|
{
|
|
if (i->index != 0)
|
|
return -EINVAL;
|
|
strcpy(i->name, "Radio");
|
|
i->type = V4L2_INPUT_TYPE_TUNER;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
|
|
{
|
|
if (unlikely(a->index))
|
|
return -EINVAL;
|
|
|
|
strcpy(a->name, "Radio");
|
|
return 0;
|
|
}
|
|
|
|
static int radio_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
|
|
{
|
|
struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
|
|
|
|
if (0 != t->index)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&dev->lock);
|
|
call_all(dev, tuner, s_tuner, t);
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int radio_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int radio_s_input(struct file *file, void *fh, unsigned int i)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int radio_queryctrl(struct file *file, void *priv,
|
|
struct v4l2_queryctrl *c)
|
|
{
|
|
int i;
|
|
|
|
if (c->id < V4L2_CID_BASE || c->id >= V4L2_CID_LASTP1)
|
|
return -EINVAL;
|
|
if (c->id == V4L2_CID_AUDIO_MUTE) {
|
|
for (i = 0; i < CX231XX_CTLS; i++)
|
|
if (cx231xx_ctls[i].v.id == c->id)
|
|
break;
|
|
*c = cx231xx_ctls[i].v;
|
|
} else
|
|
*c = no_ctl;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* cx231xx_v4l2_open()
|
|
* inits the device and starts isoc transfer
|
|
*/
|
|
static int cx231xx_v4l2_open(struct file *filp)
|
|
{
|
|
int minor = video_devdata(filp)->minor;
|
|
int errCode = 0, radio = 0;
|
|
struct cx231xx *dev = NULL;
|
|
struct cx231xx_fh *fh;
|
|
enum v4l2_buf_type fh_type = 0;
|
|
|
|
dev = cx231xx_get_device(minor, &fh_type, &radio);
|
|
if (NULL == dev)
|
|
return -ENODEV;
|
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
cx231xx_videodbg("open minor=%d type=%s users=%d\n",
|
|
minor, v4l2_type_names[fh_type], dev->users);
|
|
|
|
#if 0
|
|
errCode = cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
|
|
if (errCode < 0) {
|
|
cx231xx_errdev
|
|
("Device locked on digital mode. Can't open analog\n");
|
|
mutex_unlock(&dev->lock);
|
|
return -EBUSY;
|
|
}
|
|
#endif
|
|
|
|
fh = kzalloc(sizeof(struct cx231xx_fh), GFP_KERNEL);
|
|
if (!fh) {
|
|
cx231xx_errdev("cx231xx-video.c: Out of memory?!\n");
|
|
mutex_unlock(&dev->lock);
|
|
return -ENOMEM;
|
|
}
|
|
fh->dev = dev;
|
|
fh->radio = radio;
|
|
fh->type = fh_type;
|
|
filp->private_data = fh;
|
|
|
|
if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
|
|
dev->width = norm_maxw(dev);
|
|
dev->height = norm_maxh(dev);
|
|
dev->hscale = 0;
|
|
dev->vscale = 0;
|
|
|
|
/* Power up in Analog TV mode */
|
|
cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
|
|
|
|
#if 0
|
|
cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
|
|
#endif
|
|
cx231xx_resolution_set(dev);
|
|
|
|
/* set video alternate setting */
|
|
cx231xx_set_video_alternate(dev);
|
|
|
|
/* Needed, since GPIO might have disabled power of
|
|
some i2c device */
|
|
cx231xx_config_i2c(dev);
|
|
|
|
/* device needs to be initialized before isoc transfer */
|
|
dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
|
|
video_mux(dev, dev->video_input);
|
|
|
|
}
|
|
if (fh->radio) {
|
|
cx231xx_videodbg("video_open: setting radio device\n");
|
|
|
|
/* cx231xx_start_radio(dev); */
|
|
|
|
call_all(dev, tuner, s_radio);
|
|
}
|
|
|
|
dev->users++;
|
|
|
|
if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_video_qops,
|
|
NULL, &dev->video_mode.slock,
|
|
fh->type, V4L2_FIELD_INTERLACED,
|
|
sizeof(struct cx231xx_buffer), fh);
|
|
if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
|
|
/* Set the required alternate setting VBI interface works in
|
|
Bulk mode only */
|
|
cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
|
|
|
|
videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_vbi_qops,
|
|
NULL, &dev->vbi_mode.slock,
|
|
fh->type, V4L2_FIELD_SEQ_TB,
|
|
sizeof(struct cx231xx_buffer), fh);
|
|
}
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return errCode;
|
|
}
|
|
|
|
/*
|
|
* cx231xx_realease_resources()
|
|
* unregisters the v4l2,i2c and usb devices
|
|
* called when the device gets disconected or at module unload
|
|
*/
|
|
void cx231xx_release_analog_resources(struct cx231xx *dev)
|
|
{
|
|
|
|
/*FIXME: I2C IR should be disconnected */
|
|
|
|
if (dev->radio_dev) {
|
|
if (-1 != dev->radio_dev->minor)
|
|
video_unregister_device(dev->radio_dev);
|
|
else
|
|
video_device_release(dev->radio_dev);
|
|
dev->radio_dev = NULL;
|
|
}
|
|
if (dev->vbi_dev) {
|
|
cx231xx_info("V4L2 device /dev/vbi%d deregistered\n",
|
|
dev->vbi_dev->num);
|
|
if (-1 != dev->vbi_dev->minor)
|
|
video_unregister_device(dev->vbi_dev);
|
|
else
|
|
video_device_release(dev->vbi_dev);
|
|
dev->vbi_dev = NULL;
|
|
}
|
|
if (dev->vdev) {
|
|
cx231xx_info("V4L2 device /dev/video%d deregistered\n",
|
|
dev->vdev->num);
|
|
if (-1 != dev->vdev->minor)
|
|
video_unregister_device(dev->vdev);
|
|
else
|
|
video_device_release(dev->vdev);
|
|
dev->vdev = NULL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* cx231xx_v4l2_close()
|
|
* stops streaming and deallocates all resources allocated by the v4l2
|
|
* calls and ioctls
|
|
*/
|
|
static int cx231xx_v4l2_close(struct file *filp)
|
|
{
|
|
struct cx231xx_fh *fh = filp->private_data;
|
|
struct cx231xx *dev = fh->dev;
|
|
|
|
cx231xx_videodbg("users=%d\n", dev->users);
|
|
|
|
mutex_lock(&dev->lock);
|
|
|
|
if (res_check(fh))
|
|
res_free(fh);
|
|
|
|
if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
|
|
videobuf_stop(&fh->vb_vidq);
|
|
videobuf_mmap_free(&fh->vb_vidq);
|
|
|
|
/* the device is already disconnect,
|
|
free the remaining resources */
|
|
if (dev->state & DEV_DISCONNECTED) {
|
|
cx231xx_release_resources(dev);
|
|
mutex_unlock(&dev->lock);
|
|
kfree(dev);
|
|
return 0;
|
|
}
|
|
|
|
/* do this before setting alternate! */
|
|
cx231xx_uninit_vbi_isoc(dev);
|
|
|
|
/* set alternate 0 */
|
|
if (!dev->vbi_or_sliced_cc_mode)
|
|
cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
|
|
else
|
|
cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
|
|
|
|
kfree(fh);
|
|
dev->users--;
|
|
wake_up_interruptible_nr(&dev->open, 1);
|
|
mutex_unlock(&dev->lock);
|
|
return 0;
|
|
}
|
|
|
|
if (dev->users == 1) {
|
|
videobuf_stop(&fh->vb_vidq);
|
|
videobuf_mmap_free(&fh->vb_vidq);
|
|
|
|
/* the device is already disconnect,
|
|
free the remaining resources */
|
|
if (dev->state & DEV_DISCONNECTED) {
|
|
cx231xx_release_resources(dev);
|
|
mutex_unlock(&dev->lock);
|
|
kfree(dev);
|
|
return 0;
|
|
}
|
|
|
|
/* Save some power by putting tuner to sleep */
|
|
call_all(dev, tuner, s_standby);
|
|
|
|
/* do this before setting alternate! */
|
|
cx231xx_uninit_isoc(dev);
|
|
cx231xx_set_mode(dev, CX231XX_SUSPEND);
|
|
|
|
/* set alternate 0 */
|
|
cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
|
|
}
|
|
kfree(fh);
|
|
dev->users--;
|
|
wake_up_interruptible_nr(&dev->open, 1);
|
|
mutex_unlock(&dev->lock);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* cx231xx_v4l2_read()
|
|
* will allocate buffers when called for the first time
|
|
*/
|
|
static ssize_t
|
|
cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count,
|
|
loff_t *pos)
|
|
{
|
|
struct cx231xx_fh *fh = filp->private_data;
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
if ((fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
|
|
(fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)) {
|
|
mutex_lock(&dev->lock);
|
|
rc = res_get(fh);
|
|
mutex_unlock(&dev->lock);
|
|
|
|
if (unlikely(rc < 0))
|
|
return rc;
|
|
|
|
return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
|
|
filp->f_flags & O_NONBLOCK);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* cx231xx_v4l2_poll()
|
|
* will allocate buffers when called for the first time
|
|
*/
|
|
static unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table * wait)
|
|
{
|
|
struct cx231xx_fh *fh = filp->private_data;
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
mutex_lock(&dev->lock);
|
|
rc = res_get(fh);
|
|
mutex_unlock(&dev->lock);
|
|
|
|
if (unlikely(rc < 0))
|
|
return POLLERR;
|
|
|
|
if ((V4L2_BUF_TYPE_VIDEO_CAPTURE == fh->type) ||
|
|
(V4L2_BUF_TYPE_VBI_CAPTURE == fh->type))
|
|
return videobuf_poll_stream(filp, &fh->vb_vidq, wait);
|
|
else
|
|
return POLLERR;
|
|
}
|
|
|
|
/*
|
|
* cx231xx_v4l2_mmap()
|
|
*/
|
|
static int cx231xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
|
|
{
|
|
struct cx231xx_fh *fh = filp->private_data;
|
|
struct cx231xx *dev = fh->dev;
|
|
int rc;
|
|
|
|
rc = check_dev(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
mutex_lock(&dev->lock);
|
|
rc = res_get(fh);
|
|
mutex_unlock(&dev->lock);
|
|
|
|
if (unlikely(rc < 0))
|
|
return rc;
|
|
|
|
rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
|
|
|
|
cx231xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n",
|
|
(unsigned long)vma->vm_start,
|
|
(unsigned long)vma->vm_end -
|
|
(unsigned long)vma->vm_start, rc);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static const struct v4l2_file_operations cx231xx_v4l_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = cx231xx_v4l2_open,
|
|
.release = cx231xx_v4l2_close,
|
|
.read = cx231xx_v4l2_read,
|
|
.poll = cx231xx_v4l2_poll,
|
|
.mmap = cx231xx_v4l2_mmap,
|
|
.ioctl = video_ioctl2,
|
|
};
|
|
|
|
static const struct v4l2_ioctl_ops video_ioctl_ops = {
|
|
.vidioc_querycap = vidioc_querycap,
|
|
.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
|
|
.vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
|
|
.vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
|
|
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
|
|
.vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
|
|
.vidioc_try_fmt_vbi_cap = vidioc_try_fmt_vbi_cap,
|
|
.vidioc_s_fmt_vbi_cap = vidioc_try_fmt_vbi_cap,
|
|
.vidioc_g_audio = vidioc_g_audio,
|
|
.vidioc_s_audio = vidioc_s_audio,
|
|
.vidioc_cropcap = vidioc_cropcap,
|
|
.vidioc_g_fmt_sliced_vbi_cap = vidioc_g_fmt_sliced_vbi_cap,
|
|
.vidioc_try_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap,
|
|
.vidioc_reqbufs = vidioc_reqbufs,
|
|
.vidioc_querybuf = vidioc_querybuf,
|
|
.vidioc_qbuf = vidioc_qbuf,
|
|
.vidioc_dqbuf = vidioc_dqbuf,
|
|
.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_queryctrl = vidioc_queryctrl,
|
|
.vidioc_g_ctrl = vidioc_g_ctrl,
|
|
.vidioc_s_ctrl = vidioc_s_ctrl,
|
|
.vidioc_streamon = vidioc_streamon,
|
|
.vidioc_streamoff = vidioc_streamoff,
|
|
.vidioc_g_tuner = vidioc_g_tuner,
|
|
.vidioc_s_tuner = vidioc_s_tuner,
|
|
.vidioc_g_frequency = vidioc_g_frequency,
|
|
.vidioc_s_frequency = vidioc_s_frequency,
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
.vidioc_g_register = vidioc_g_register,
|
|
.vidioc_s_register = vidioc_s_register,
|
|
#endif
|
|
#ifdef CONFIG_VIDEO_V4L1_COMPAT
|
|
.vidiocgmbuf = vidiocgmbuf,
|
|
#endif
|
|
};
|
|
|
|
static struct video_device cx231xx_vbi_template;
|
|
|
|
static const struct video_device cx231xx_video_template = {
|
|
.fops = &cx231xx_v4l_fops,
|
|
.release = video_device_release,
|
|
.ioctl_ops = &video_ioctl_ops,
|
|
.minor = -1,
|
|
.tvnorms = V4L2_STD_ALL,
|
|
.current_norm = V4L2_STD_PAL,
|
|
};
|
|
|
|
static const struct v4l2_file_operations radio_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = cx231xx_v4l2_open,
|
|
.release = cx231xx_v4l2_close,
|
|
.ioctl = video_ioctl2,
|
|
};
|
|
|
|
static const struct v4l2_ioctl_ops radio_ioctl_ops = {
|
|
.vidioc_querycap = radio_querycap,
|
|
.vidioc_g_tuner = radio_g_tuner,
|
|
.vidioc_enum_input = radio_enum_input,
|
|
.vidioc_g_audio = radio_g_audio,
|
|
.vidioc_s_tuner = radio_s_tuner,
|
|
.vidioc_s_audio = radio_s_audio,
|
|
.vidioc_s_input = radio_s_input,
|
|
.vidioc_queryctrl = radio_queryctrl,
|
|
.vidioc_g_ctrl = vidioc_g_ctrl,
|
|
.vidioc_s_ctrl = vidioc_s_ctrl,
|
|
.vidioc_g_frequency = vidioc_g_frequency,
|
|
.vidioc_s_frequency = vidioc_s_frequency,
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
.vidioc_g_register = vidioc_g_register,
|
|
.vidioc_s_register = vidioc_s_register,
|
|
#endif
|
|
};
|
|
|
|
static struct video_device cx231xx_radio_template = {
|
|
.name = "cx231xx-radio",
|
|
.fops = &radio_fops,
|
|
.ioctl_ops = &radio_ioctl_ops,
|
|
.minor = -1,
|
|
};
|
|
|
|
/******************************** usb interface ******************************/
|
|
|
|
static struct video_device *cx231xx_vdev_init(struct cx231xx *dev,
|
|
const struct video_device
|
|
*template, const char *type_name)
|
|
{
|
|
struct video_device *vfd;
|
|
|
|
vfd = video_device_alloc();
|
|
if (NULL == vfd)
|
|
return NULL;
|
|
|
|
*vfd = *template;
|
|
vfd->minor = -1;
|
|
vfd->v4l2_dev = &dev->v4l2_dev;
|
|
vfd->release = video_device_release;
|
|
vfd->debug = video_debug;
|
|
|
|
snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
|
|
|
|
return vfd;
|
|
}
|
|
|
|
int cx231xx_register_analog_devices(struct cx231xx *dev)
|
|
{
|
|
int ret;
|
|
|
|
cx231xx_info("%s: v4l2 driver version %d.%d.%d\n",
|
|
dev->name,
|
|
(CX231XX_VERSION_CODE >> 16) & 0xff,
|
|
(CX231XX_VERSION_CODE >> 8) & 0xff,
|
|
CX231XX_VERSION_CODE & 0xff);
|
|
|
|
/* set default norm */
|
|
/*dev->norm = cx231xx_video_template.current_norm; */
|
|
dev->width = norm_maxw(dev);
|
|
dev->height = norm_maxh(dev);
|
|
dev->interlaced = 0;
|
|
dev->hscale = 0;
|
|
dev->vscale = 0;
|
|
|
|
/* Analog specific initialization */
|
|
dev->format = &format[0];
|
|
/* video_mux(dev, dev->video_input); */
|
|
|
|
/* Audio defaults */
|
|
dev->mute = 1;
|
|
dev->volume = 0x1f;
|
|
|
|
/* enable vbi capturing */
|
|
/* write code here... */
|
|
|
|
/* allocate and fill video video_device struct */
|
|
dev->vdev = cx231xx_vdev_init(dev, &cx231xx_video_template, "video");
|
|
if (!dev->vdev) {
|
|
cx231xx_errdev("cannot allocate video_device.\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* register v4l2 video video_device */
|
|
ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
|
|
video_nr[dev->devno]);
|
|
if (ret) {
|
|
cx231xx_errdev("unable to register video device (error=%i).\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
cx231xx_info("%s/0: registered device video%d [v4l2]\n",
|
|
dev->name, dev->vdev->num);
|
|
|
|
/* Initialize VBI template */
|
|
memcpy(&cx231xx_vbi_template, &cx231xx_video_template,
|
|
sizeof(cx231xx_vbi_template));
|
|
strcpy(cx231xx_vbi_template.name, "cx231xx-vbi");
|
|
|
|
/* Allocate and fill vbi video_device struct */
|
|
dev->vbi_dev = cx231xx_vdev_init(dev, &cx231xx_vbi_template, "vbi");
|
|
|
|
/* register v4l2 vbi video_device */
|
|
ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
|
|
vbi_nr[dev->devno]);
|
|
if (ret < 0) {
|
|
cx231xx_errdev("unable to register vbi device\n");
|
|
return ret;
|
|
}
|
|
|
|
cx231xx_info("%s/0: registered device vbi%d\n",
|
|
dev->name, dev->vbi_dev->num);
|
|
|
|
if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) {
|
|
dev->radio_dev = cx231xx_vdev_init(dev, &cx231xx_radio_template,
|
|
"radio");
|
|
if (!dev->radio_dev) {
|
|
cx231xx_errdev("cannot allocate video_device.\n");
|
|
return -ENODEV;
|
|
}
|
|
ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
|
|
radio_nr[dev->devno]);
|
|
if (ret < 0) {
|
|
cx231xx_errdev("can't register radio device\n");
|
|
return ret;
|
|
}
|
|
cx231xx_info("Registered radio device as /dev/radio%d\n",
|
|
dev->radio_dev->num);
|
|
}
|
|
|
|
cx231xx_info("V4L2 device registered as /dev/video%d and /dev/vbi%d\n",
|
|
dev->vdev->num, dev->vbi_dev->num);
|
|
|
|
return 0;
|
|
}
|