vtc.h File Reference

Video Timing Controller Userspace I/O Driver FreeBSD. More...

Go to the source code of this file.

Data Structures
struct	vtc_dev

Enumerations
enum	vtc_mode {   VTC_MODE_720p = 0, VTC_MODE_1080p, VTC_MODE_1920x1200, VTC_MODE_480p,   VTC_MODE_576p, VTC_MODE_VGA, VTC_MODE_SVGA, VTC_MODE_XGA,   VTC_MODE_SXGA, VTC_MODE_WXGA, VTC_MODE_WXGAPLUS, VTC_MODE_WSXGAPLUS,   VTC_MODE_1080i, VTC_MODE_NTSC, VTC_MODE_PAL }

Functions
int	vtc_init (struct vtc_dev *dev, const char *devname)
	Video Timing Controller Initialization.
int	vtc_gen_enable (struct vtc_dev *dev, bool en)
	Enable Video Timing Generator. More...
int	vtc_enable (struct vtc_dev *dev, bool en)
	Enable Video Timing Controller. More...
int	vtc_set_generator_video_mode (struct vtc_dev *dev, enum vtc_mode mode)
	Set Video Generator Video Mode.
int	vtc_enable_interrupts (struct vtc_dev *dev)
int	vtc_det_enable (struct vtc_dev *dev, bool en)
	Enable Video Timing Detector.
int	vtc_det_dump (struct vtc_dev *dev)

Detailed Description

Video Timing Controller Userspace I/O Driver FreeBSD.

Author

R. Bush bush@.nosp@m.krtk.nosp@m.l.com

Version

0.1

Date

August 6, 2018 Copyright (c) 2018, krtkl inc. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

The views and conclusions contained in the software and documentation are those of the authors and should not be interpreted as representing official policies, either expressed or implied, of the FreeBSD Project.

Enumeration Type Documentation

vtc_mode

enum vtc_mode

Enumerator
VTC_MODE_720p	Video mode 720P
VTC_MODE_1080p	Video mode 1080P
VTC_MODE_1920x1200	Video mode 1920x1200
VTC_MODE_480p	Video mode 480P
VTC_MODE_576p	Video mode 576P
VTC_MODE_VGA	Video mode VGA
VTC_MODE_SVGA	Video mode SVGA
VTC_MODE_XGA	Video mode XGA
VTC_MODE_SXGA	Video mode SXGA
VTC_MODE_WXGA	Video mode WXGA
VTC_MODE_WXGAPLUS	Video mode WXGAPlus
VTC_MODE_WSXGAPLUS	Video mode WSXGAPlus
VTC_MODE_1080i	Video mode 1080I
VTC_MODE_NTSC	Video mode NTSC
VTC_MODE_PAL	Video mode PAL

              {
    VTC_MODE_720p = 0,  
    VTC_MODE_1080p,     
    VTC_MODE_1920x1200, 
    VTC_MODE_480p,      
    VTC_MODE_576p,      
    VTC_MODE_VGA,       
    VTC_MODE_SVGA,      
    VTC_MODE_XGA,       
    VTC_MODE_SXGA,      
    VTC_MODE_WXGA,      
    VTC_MODE_WXGAPLUS,  
    VTC_MODE_WSXGAPLUS, 
    VTC_MODE_1080i,     
    VTC_MODE_NTSC,      
    VTC_MODE_PAL,       

Function Documentation

vtc_enable()

int vtc_enable	(	struct vtc_dev *	dev,
		bool	en
	)

Enable Video Timing Controller.

Parameters

dev	Video timing controller device structure pointer
en	Enable timing controller selection

Returns

None

{
    uint32_t reg_val;

    reg_val = REG_READ(dev->base, VTC_REG_CONTROL);

    if (en)
        reg_val |= CONTROL_SW_RESET;
    else
        reg_val &= ~(CONTROL_SW_RESET);

    REG_WRITE(dev->base, VTC_REG_CONTROL, reg_val);

    return 0;
}

vtc_gen_enable()

int vtc_gen_enable	(	struct vtc_dev *	dev,
		bool	en
	)

Enable Video Timing Generator.

Parameters

dev	Video timing controller device structure pointer
en	Enable generator selection

Returns

None

{
    uint32_t reg_val;

    reg_val = REG_READ(dev->base, VTC_REG_CONTROL);

    if (en)
        reg_val |= CONTROL_GEN_ENABLE;
    else
        reg_val &= ~(CONTROL_GEN_ENABLE);

    reg_val |= CONTROL_REG_UPDATE;

    REG_WRITE(dev->base, VTC_REG_CONTROL, reg_val);

    return 0;
}