fb.c File Reference

framebuffer support. More...

#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <sys/types.h>
#include <bsp.h>
#include <bsp/raspberrypi.h>
#include <bsp/mailbox.h>
#include <bsp/vc.h>
#include <bsp/rpi-fb.h>
#include <libcpu/arm-cp15.h>
#include <rtems.h>
#include <rtems/libio.h>
#include <rtems/fb.h>
#include <rtems/framebuffer.h>
#include <rtems/score/atomic.h>
#include <rtems/bspIo.h>

Macros
#define	SCREEN_WIDTH   1024
#define	SCREEN_HEIGHT   768
#define	BPP   32

Enumerations
enum	mode_err_ret_val {   NO_SUITABLE_MODE = -1 , BAD_FORMAT = -2 , AUTO_SELECT = -3 , DONT_INIT = -4 ,   NO_MODE_REQ = -5 , NO_SUITABLE_MODE = -1 , BAD_FORMAT = -2 , AUTO_SELECT = -3 ,   DONT_INIT = -4 , NO_MODE_REQ = -5 }

Functions
int	rpi_get_fix_screen_info (struct fb_fix_screeninfo *info)
int	rpi_get_var_screen_info (struct fb_var_screeninfo *info)
bool	rpi_fb_hdmi_is_present (void)
int	rpi_fb_init (void)
rtems_device_driver	frame_buffer_initialize (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
	Frame Buffer Initialization Entry Point.
rtems_device_driver	frame_buffer_open (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
	Frame Buffer Open Entry Point.
rtems_device_driver	frame_buffer_close (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
	Frame Buffer Close Entry Point.
rtems_device_driver	frame_buffer_read (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
	Frame Buffer Read Entry Point.
rtems_device_driver	frame_buffer_write (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
	Frame Buffer Write Entry Point.
rtems_device_driver	frame_buffer_control (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
	Frame Buffer IO Control Entry Point.

Detailed Description

framebuffer support.

Function Documentation

frame_buffer_close()

rtems_device_driver frame_buffer_close	(	rtems_device_major_number	major,
		rtems_device_minor_number	minor,
		void *	arg
	)

Frame Buffer Close Entry Point.

This method closes a specific device supported by the frame buffer device driver.

Parameters

[in]	major	is the device driver major number
[in]	minor	is the device driver minor number
[in]	arg	is the parameters to this call

Returns

This method returns RTEMS_SUCCESSFUL when the device is successfully closed.

frame_buffer_control()

rtems_device_driver frame_buffer_control	(	rtems_device_major_number	major,
		rtems_device_minor_number	minor,
		void *	arg
	)

Frame Buffer IO Control Entry Point.

This method performs an IO Control operation on a specific device supported by the frame buffer device driver.

Parameters

[in]	major	is the device driver major number
[in]	minor	is the device driver minor number
[in]	arg	is the parameters to this call

Returns

This method returns RTEMS_SUCCESSFUL when the device driver IO control operation is successfully performed.

frame_buffer_initialize()

rtems_device_driver frame_buffer_initialize	(	rtems_device_major_number	major,
		rtems_device_minor_number	minor,
		void *	arg
	)

Frame Buffer Initialization Entry Point.

This method initializes the frame buffer device driver.

Parameters

[in]	major	is the device driver major number
[in]	minor	is the device driver minor number
[in]	arg	is the parameters to this call

Returns

This method returns RTEMS_SUCCESSFUL when the device driver is successfully initialized.

frame_buffer_open()

rtems_device_driver frame_buffer_open	(	rtems_device_major_number	major,
		rtems_device_minor_number	minor,
		void *	arg
	)

Frame Buffer Open Entry Point.

This method opens a specific device supported by the frame buffer device driver.

Parameters

[in]	major	is the device driver major number
[in]	minor	is the device driver minor number
[in]	arg	is the parameters to this call

Returns

This method returns RTEMS_SUCCESSFUL when the device driver is successfully opened.

frame_buffer_read()

rtems_device_driver frame_buffer_read	(	rtems_device_major_number	major,
		rtems_device_minor_number	minor,
		void *	arg
	)

Frame Buffer Read Entry Point.

This method reads from a specific device supported by the frame buffer device driver.

Parameters

[in]	major	is the device driver major number
[in]	minor	is the device driver minor number
[in]	arg	is the parameters to this call

Returns

This method returns RTEMS_SUCCESSFUL when the device is successfully read from.

frame_buffer_write()

rtems_device_driver frame_buffer_write	(	rtems_device_major_number	major,
		rtems_device_minor_number	minor,
		void *	arg
	)

Frame Buffer Write Entry Point.

This method writes to a specific device supported by the frame buffer device driver.

Parameters

[in]	major	is the device driver major number
[in]	minor	is the device driver minor number
[in]	arg	is the parameters to this call

Returns

This method returns RTEMS_SUCCESSFUL when the device is successfully written.