framebuffer.h File Reference

#include <linux/fb.h>
#include <g13/udev.h>

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Defines
#define	G13_FRAMEBUFFER_NAME   "g13fb"
#define	G13_FRAMEBUFFER_WIDTH   (160)
#define	G13_FRAMEBUFFER_LINE_LENGTH   (160/8)
#define	G13_FRAMEBUFFER_STRIDE   G13_FRAMEBUFFER_LINE_LENGTH
#define	G13_FRAMEBUFFER_HEIGHT   (43)
#define	G13_FRAMEBUFFER_SIZE   (G13_FRAMEBUFFER_LINE_LENGTH*G13_FRAMEBUFFER_HEIGHT)
Enumerations
enum	G13Mode { G13_RD = 1, G13_WR = 2, G13_RDWR = 4 }
Functions
int	g13_device_get_fb_node (g13_device *device)
	Returns the framebuffer node number of the specified device.
int	g13_device_framebuffer_open (g13_device *device, G13Mode mode)
	Opens the framebuffer device of the specified g13 device.
unsigned char *	g13_device_framebuffer_mmap (g13_device *device, G13Mode mode)
int	g13_device_framebuffer_munmap (unsigned char *map)

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Define Documentation

#define G13_FRAMEBUFFER_HEIGHT   (43)

Referenced by cairo_g13_surface_create().

#define G13_FRAMEBUFFER_LINE_LENGTH   (160/8)

#define G13_FRAMEBUFFER_NAME   "g13fb"

#define G13_FRAMEBUFFER_SIZE   (G13_FRAMEBUFFER_LINE_LENGTH*G13_FRAMEBUFFER_HEIGHT)

Referenced by cairo_g13_fbmunmap(), g13_device_framebuffer_mmap(), and g13_device_framebuffer_munmap().

#define G13_FRAMEBUFFER_STRIDE   G13_FRAMEBUFFER_LINE_LENGTH

Referenced by cairo_g13_surface_create().

#define G13_FRAMEBUFFER_WIDTH   (160)

Referenced by cairo_g13_surface_create().

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Enumeration Type Documentation

enum G13Mode

Enumerator:

G13_RD
G13_WR
G13_RDWR

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Function Documentation

unsigned char* g13_device_framebuffer_mmap	(	g13_device *	device,
		G13Mode	mode
	)

References g13_device_framebuffer_open(), G13_FRAMEBUFFER_SIZE, G13_RD, G13_RDWR, and G13_WR.

Referenced by cairo_g13_surface_create().

int g13_device_framebuffer_munmap

(

unsigned char *

map

)

References G13_FRAMEBUFFER_SIZE.

int g13_device_framebuffer_open	(	g13_device *	device,
		G13Mode	mode
	)

Opens the framebuffer device of the specified g13 device.

Parameters:

flags

Must be one of O_RDONLY , O_WRONLY or O_RDWR

Returns:

The file descriptor of the frame buffer on success or -1 on failure

The returned file descriptor should be closed with close()

References g13_device_get_fb_node(), G13_RD, G13_RDWR, and G13_WR.

Referenced by g13_device_framebuffer_mmap().

int g13_device_get_fb_node

(

g13_device *

device

)

Returns the framebuffer node number of the specified device.

Returns:

on success the framebuffer node number; -1 on failure

References g13_device_get_syspath().

Referenced by g13_device_framebuffer_open().