cx25821-video.c File Reference

#include "cx25821-video.h"

Go to the source code of this file.

Macros
#define	pr_fmt(fmt)   KBUILD_MODNAME ": " fmt
#define	FORMAT_FLAGS_PACKED   0x01

Functions
	MODULE_DESCRIPTION ("v4l2 driver module for cx25821 based TV cards")
	MODULE_AUTHOR ("Hiep Huynh <[email protected]>")
	MODULE_LICENSE ("GPL")
	module_param_array (video_nr, int, NULL, 0444)
	module_param_array (radio_nr, int, NULL, 0444)
	MODULE_PARM_DESC (video_nr,"video device numbers")
	MODULE_PARM_DESC (radio_nr,"radio device numbers")
	module_param (video_debug, int, 0644)
	MODULE_PARM_DESC (video_debug,"enable debug messages [video]")
	module_param (irq_debug, int, 0644)
	MODULE_PARM_DESC (irq_debug,"enable debug messages [IRQ handler]")
	module_param (vid_limit, int, 0644)
	MODULE_PARM_DESC (vid_limit,"capture memory limit in megabytes")
int	cx25821_get_format_size (void)
struct cx25821_fmt *	cx25821_format_by_fourcc (unsigned int fourcc)
void	cx25821_video_wakeup (struct cx25821_dev *dev, struct cx25821_dmaqueue *q, u32 count)
int	cx25821_set_tvnorm (struct cx25821_dev *dev, v4l2_std_id norm)
struct video_device *	cx25821_vdev_init (struct cx25821_dev *dev, struct pci_dev *pci, struct video_device *template, char *type)
int	cx25821_res_get (struct cx25821_dev *dev, struct cx25821_fh *fh, unsigned int bit)
int	cx25821_res_check (struct cx25821_fh *fh, unsigned int bit)
int	cx25821_res_locked (struct cx25821_fh *fh, unsigned int bit)
void	cx25821_res_free (struct cx25821_dev *dev, struct cx25821_fh *fh, unsigned int bits)
int	cx25821_video_mux (struct cx25821_dev *dev, unsigned int input)
int	cx25821_start_video_dma (struct cx25821_dev *dev, struct cx25821_dmaqueue *q, struct cx25821_buffer *buf, struct sram_channel *channel)
int	cx25821_restart_video_queue (struct cx25821_dev *dev, struct cx25821_dmaqueue *q, struct sram_channel *channel)
void	cx25821_vid_timeout (unsigned long data)
int	cx25821_video_irq (struct cx25821_dev *dev, int chan_num, u32 status)
void	cx25821_videoioctl_unregister (struct cx25821_dev *dev)
void	cx25821_video_unregister (struct cx25821_dev *dev, int chan_num)
int	cx25821_video_register (struct cx25821_dev *dev)
int	cx25821_buffer_setup (struct videobuf_queue *q, unsigned int *count, unsigned int *size)
int	cx25821_buffer_prepare (struct videobuf_queue *q, struct videobuf_buffer *vb, enum v4l2_field field)
void	cx25821_buffer_release (struct videobuf_queue *q, struct videobuf_buffer *vb)
struct videobuf_queue *	get_queue (struct cx25821_fh *fh)
int	cx25821_get_resource (struct cx25821_fh *fh, int resource)
int	cx25821_video_mmap (struct file *file, struct vm_area_struct *vma)
int	cx25821_vidioc_g_fmt_vid_cap (struct file *file, void *priv, struct v4l2_format *f)
int	cx25821_vidioc_try_fmt_vid_cap (struct file *file, void *priv, struct v4l2_format *f)
int	cx25821_vidioc_querycap (struct file *file, void *priv, struct v4l2_capability *cap)
int	cx25821_vidioc_enum_fmt_vid_cap (struct file *file, void *priv, struct v4l2_fmtdesc *f)
int	cx25821_vidioc_reqbufs (struct file *file, void *priv, struct v4l2_requestbuffers *p)
int	cx25821_vidioc_querybuf (struct file *file, void *priv, struct v4l2_buffer *p)
int	cx25821_vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *p)
int	cx25821_vidioc_g_priority (struct file *file, void *f, enum v4l2_priority *p)
int	cx25821_vidioc_s_priority (struct file *file, void *f, enum v4l2_priority prio)
int	cx25821_vidioc_s_std (struct file *file, void *priv, v4l2_std_id *tvnorms)
int	cx25821_enum_input (struct cx25821_dev *dev, struct v4l2_input *i)
int	cx25821_vidioc_enum_input (struct file *file, void *priv, struct v4l2_input *i)
int	cx25821_vidioc_g_input (struct file *file, void *priv, unsigned int *i)
int	cx25821_vidioc_s_input (struct file *file, void *priv, unsigned int i)
int	cx25821_vidioc_g_frequency (struct file *file, void *priv, struct v4l2_frequency *f)
int	cx25821_set_freq (struct cx25821_dev *dev, struct v4l2_frequency *f)
int	cx25821_vidioc_s_frequency (struct file *file, void *priv, struct v4l2_frequency *f)
int	cx25821_vidioc_g_tuner (struct file *file, void *priv, struct v4l2_tuner *t)
int	cx25821_vidioc_s_tuner (struct file *file, void *priv, struct v4l2_tuner *t)
int	cx25821_vidioc_queryctrl (struct file *file, void *priv, struct v4l2_queryctrl *qctrl)
int	cx25821_vidioc_g_ctrl (struct file *file, void *priv, struct v4l2_control *ctl)
int	cx25821_set_control (struct cx25821_dev *dev, struct v4l2_control *ctl, int chan_num)
int	cx25821_vidioc_cropcap (struct file *file, void *priv, struct v4l2_cropcap *cropcap)
int	cx25821_vidioc_s_crop (struct file *file, void *priv, const struct v4l2_crop *crop)
int	cx25821_vidioc_g_crop (struct file *file, void *priv, struct v4l2_crop *crop)
int	cx25821_vidioc_querystd (struct file *file, void *priv, v4l2_std_id *norm)
int	cx25821_is_valid_width (u32 width, v4l2_std_id tvnorm)
int	cx25821_is_valid_height (u32 height, v4l2_std_id tvnorm)

Variables
unsigned int	vid_limit = 16
struct cx25821_fmt	formats []
struct video_device	cx25821_videoioctl_template

Macro Definition Documentation

#define FORMAT_FLAGS_PACKED   0x01

Definition at line 61 of file cx25821-video.c.

#define pr_fmt

(

fmt

)

KBUILD_MODNAME ": " fmt

Definition at line 27 of file cx25821-video.c.

Function Documentation

int cx25821_buffer_prepare	(	struct videobuf_queue *	q,
		struct videobuf_buffer *	vb,
		enum v4l2_field	field
	)

Definition at line 533 of file cx25821-video.c.

void cx25821_buffer_release	(	struct videobuf_queue *	q,
		struct videobuf_buffer *	vb
	)

Definition at line 660 of file cx25821-video.c.

int cx25821_buffer_setup	(	struct videobuf_queue *	q,
		unsigned int *	count,
		unsigned int *	size
	)

Definition at line 517 of file cx25821-video.c.

int cx25821_enum_input	(	struct cx25821_dev *	dev,
		struct v4l2_input *	i
	)

Definition at line 1234 of file cx25821-video.c.

struct cx25821_fmt* cx25821_format_by_fourcc ( unsigned int  fourcc )

read

Definition at line 97 of file cx25821-video.c.

int cx25821_get_format_size

(

void

)

Definition at line 92 of file cx25821-video.c.

int cx25821_get_resource	(	struct cx25821_fh *	fh,
		int	resource
	)

Definition at line 680 of file cx25821-video.c.

int cx25821_is_valid_height	(	u32	height,
		v4l2_std_id	tvnorm
	)

Definition at line 1661 of file cx25821-video.c.

int cx25821_is_valid_width	(	u32	width,
		v4l2_std_id	tvnorm
	)

Definition at line 1643 of file cx25821-video.c.

int cx25821_res_check	(	struct cx25821_fh *	fh,
		unsigned int	bit
	)

Definition at line 225 of file cx25821-video.c.

void cx25821_res_free	(	struct cx25821_dev *	dev,
		struct cx25821_fh *	fh,
		unsigned int	bits
	)

Definition at line 235 of file cx25821-video.c.

int cx25821_res_get	(	struct cx25821_dev *	dev,
		struct cx25821_fh *	fh,
		unsigned int	bit
	)

Definition at line 202 of file cx25821-video.c.

int cx25821_res_locked	(	struct cx25821_fh *	fh,
		unsigned int	bit
	)

Definition at line 230 of file cx25821-video.c.

int cx25821_restart_video_queue	(	struct cx25821_dev *	dev,
		struct cx25821_dmaqueue *	q,
		struct sram_channel *	channel
	)

Definition at line 294 of file cx25821-video.c.

int cx25821_set_control	(	struct cx25821_dev *	dev,
		struct v4l2_control *	ctl,
		int	chan_num
	)

Definition at line 1532 of file cx25821-video.c.

int cx25821_set_freq	(	struct cx25821_dev *	dev,
		struct v4l2_frequency *	f
	)

Definition at line 1315 of file cx25821-video.c.

int cx25821_set_tvnorm	(	struct cx25821_dev *	dev,
		v4l2_std_id	norm
	)

Definition at line 148 of file cx25821-video.c.

int cx25821_start_video_dma	(	struct cx25821_dev *	dev,
		struct cx25821_dmaqueue *	q,
		struct cx25821_buffer *	buf,
		struct sram_channel *	channel
	)

Definition at line 266 of file cx25821-video.c.

struct video_device* cx25821_vdev_init ( struct cx25821_dev *  dev, struct pci_dev *  pci, struct video_device *  template, char *  type  )

read

Definition at line 162 of file cx25821-video.c.

void cx25821_vid_timeout

(

unsigned long

data

)

Definition at line 345 of file cx25821-video.c.

int cx25821_video_irq	(	struct cx25821_dev *	dev,
		int	chan_num,
		u32	status
	)

Definition at line 371 of file cx25821-video.c.

int cx25821_video_mmap	(	struct file *	file,
		struct vm_area_struct *	vma
	)

Definition at line 691 of file cx25821-video.c.

int cx25821_video_mux	(	struct cx25821_dev *	dev,
		unsigned int	input
	)

Definition at line 248 of file cx25821-video.c.

int cx25821_video_register

(

struct cx25821_dev *

dev

)

Definition at line 448 of file cx25821-video.c.

void cx25821_video_unregister	(	struct cx25821_dev *	dev,
		int	chan_num
	)

Definition at line 426 of file cx25821-video.c.

void cx25821_video_wakeup	(	struct cx25821_dev *	dev,
		struct cx25821_dmaqueue *	q,
		u32	count
	)

Definition at line 112 of file cx25821-video.c.

void cx25821_videoioctl_unregister

(

struct cx25821_dev *

dev

)

Definition at line 414 of file cx25821-video.c.

int cx25821_vidioc_cropcap	(	struct file *	file,
		void *	priv,
		struct v4l2_cropcap *	cropcap
	)

Definition at line 1594 of file cx25821-video.c.

int cx25821_vidioc_enum_fmt_vid_cap	(	struct file *	file,
		void *	priv,
		struct v4l2_fmtdesc *	f
	)

Definition at line 1153 of file cx25821-video.c.

int cx25821_vidioc_enum_input	(	struct file *	file,
		void *	priv,
		struct v4l2_input *	i
	)

Definition at line 1258 of file cx25821-video.c.

int cx25821_vidioc_g_crop	(	struct file *	file,
		void *	priv,
		struct v4l2_crop *	crop
	)

Definition at line 1629 of file cx25821-video.c.

int cx25821_vidioc_g_ctrl	(	struct file *	file,
		void *	priv,
		struct v4l2_control *	ctl
	)

Definition at line 1503 of file cx25821-video.c.

int cx25821_vidioc_g_fmt_vid_cap	(	struct file *	file,
		void *	priv,
		struct v4l2_format *	f
	)

Definition at line 1073 of file cx25821-video.c.

int cx25821_vidioc_g_frequency	(	struct file *	file,
		void *	priv,
		struct v4l2_frequency *	f
	)

Definition at line 1302 of file cx25821-video.c.

int cx25821_vidioc_g_input	(	struct file *	file,
		void *	priv,
		unsigned int *	i
	)

Definition at line 1266 of file cx25821-video.c.

int cx25821_vidioc_g_priority	(	struct file *	file,
		void *	f,
		enum v4l2_priority *	p
	)

Definition at line 1185 of file cx25821-video.c.

int cx25821_vidioc_g_tuner	(	struct file *	file,
		void *	priv,
		struct v4l2_tuner *	t
	)

Definition at line 1382 of file cx25821-video.c.

int cx25821_vidioc_qbuf	(	struct file *	file,
		void *	priv,
		struct v4l2_buffer *	p
	)

Definition at line 1179 of file cx25821-video.c.

int cx25821_vidioc_querybuf	(	struct file *	file,
		void *	priv,
		struct v4l2_buffer *	p
	)

Definition at line 1172 of file cx25821-video.c.

int cx25821_vidioc_querycap	(	struct file *	file,
		void *	priv,
		struct v4l2_capability *	cap
	)

Definition at line 1137 of file cx25821-video.c.

int cx25821_vidioc_queryctrl	(	struct file *	file,
		void *	priv,
		struct v4l2_queryctrl *	qctrl
	)

Definition at line 1484 of file cx25821-video.c.

int cx25821_vidioc_querystd	(	struct file *	file,
		void *	priv,
		v4l2_std_id *	norm
	)

Definition at line 1635 of file cx25821-video.c.

int cx25821_vidioc_reqbufs	(	struct file *	file,
		void *	priv,
		struct v4l2_requestbuffers *	p
	)

Definition at line 1165 of file cx25821-video.c.

int cx25821_vidioc_s_crop	(	struct file *	file,
		void *	priv,
		const struct v4l2_crop *	crop
	)

Definition at line 1613 of file cx25821-video.c.

int cx25821_vidioc_s_frequency	(	struct file *	file,
		void *	priv,
		struct v4l2_frequency *	f
	)

Definition at line 1330 of file cx25821-video.c.

int cx25821_vidioc_s_input	(	struct file *	file,
		void *	priv,
		unsigned int	i
	)

Definition at line 1275 of file cx25821-video.c.

int cx25821_vidioc_s_priority	(	struct file *	file,
		void *	f,
		enum v4l2_priority	prio
	)

Definition at line 1195 of file cx25821-video.c.

int cx25821_vidioc_s_std	(	struct file *	file,
		void *	priv,
		v4l2_std_id *	tvnorms
	)

Definition at line 1206 of file cx25821-video.c.

int cx25821_vidioc_s_tuner	(	struct file *	file,
		void *	priv,
		struct v4l2_tuner *	t
	)

Definition at line 1400 of file cx25821-video.c.

int cx25821_vidioc_try_fmt_vid_cap	(	struct file *	file,
		void *	priv,
		struct v4l2_format *	f
	)

Definition at line 1088 of file cx25821-video.c.

struct videobuf_queue* get_queue ( struct cx25821_fh *  fh )

read

Definition at line 669 of file cx25821-video.c.

MODULE_AUTHOR

(

"Hiep Huynh <[email protected]>"

)

MODULE_DESCRIPTION

(

"v4l2 driver module for cx25821 based TV cards"

)

MODULE_LICENSE

(

"GPL"

)

module_param	(	video_debug	,
		int	,
		0644
	)

module_param	(	irq_debug	,
		int	,
		0644
	)

module_param	(	vid_limit	,
		int	,
		0644
	)

module_param_array	(	video_nr	,
		int	,
		NULL	,
		0444
	)

module_param_array	(	radio_nr	,
		int	,
		NULL	,
		0444
	)

MODULE_PARM_DESC	(	video_nr	,
		"video device numbers"
	)

MODULE_PARM_DESC	(	radio_nr	,
		"radio device numbers"
	)

MODULE_PARM_DESC	(	video_debug	,
		"enable debug messages "	[video]
	)

MODULE_PARM_DESC	(	irq_debug	,
		"enable debug messages "	[IRQ handler]
	)

MODULE_PARM_DESC	(	vid_limit	,
		"capture memory limit in megabytes"
	)

Variable Documentation

struct video_device cx25821_videoioctl_template

Initial value:

= {
    .name = "cx25821-videoioctl",
    .fops = &video_fops,
    .ioctl_ops = &video_ioctl_ops,
    .tvnorms = CX25821_NORMS,
    .current_norm = V4L2_STD_NTSC_M,
}

Definition at line 1984 of file cx25821-video.c.

struct cx25821_fmt formats[]

Initial value:

= {
    {
        .name = "8 bpp, gray",
        .fourcc = V4L2_PIX_FMT_GREY,
        .depth = 8,
        .flags = FORMAT_FLAGS_PACKED,
     }, {
        .name = "4:1:1, packed, Y41P",
        .fourcc = V4L2_PIX_FMT_Y41P,
        .depth = 12,
        .flags = FORMAT_FLAGS_PACKED,
    }, {
        .name = "4:2:2, packed, YUYV",
        .fourcc = V4L2_PIX_FMT_YUYV,
        .depth = 16,
        .flags = FORMAT_FLAGS_PACKED,
    }, {
        .name = "4:2:2, packed, UYVY",
        .fourcc = V4L2_PIX_FMT_UYVY,
        .depth = 16,
        .flags = FORMAT_FLAGS_PACKED,
    }, {
        .name = "4:2:0, YUV",
        .fourcc = V4L2_PIX_FMT_YUV420,
        .depth = 12,
        .flags = FORMAT_FLAGS_PACKED,
    },
}

Definition at line 63 of file cx25821-video.c.

unsigned int vid_limit = 16

Definition at line 52 of file cx25821-video.c.