linux/drivers/video/fbdev/vesafb.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * framebuffer driver for VBE 2.0 compliant graphic boards
 *
 * switching to graphics mode happens at boot time (while
 * running in real mode, see arch/i386/boot/video.S).
 *
 * (c) 1998 Gerd Knorr <[email protected]>
 *
 */

#include <linux/aperture.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/screen_info.h>
#include <linux/io.h>

#include <video/vga.h>

#define dac_reg …
#define dac_val …

/* --------------------------------------------------------------------- */

struct vesafb_par { … };

static struct fb_var_screeninfo vesafb_defined = …;

static struct fb_fix_screeninfo vesafb_fix = …;

static int   inverse    __read_mostly;
static int   mtrr       __read_mostly;		/* disable mtrr */
static int   vram_remap;			/* Set amount of memory to be used */
static int   vram_total;			/* Set total amount of memory */
static int   pmi_setpal __read_mostly = …;	/* pmi for palette changes ??? */
static int   ypan       __read_mostly;		/* 0..nothing, 1..ypan, 2..ywrap */
static void  (*pmi_start)(void) __read_mostly;
static void  (*pmi_pal)  (void) __read_mostly;
static int   depth      __read_mostly;
static int   vga_compat __read_mostly;
/* --------------------------------------------------------------------- */

static int vesafb_pan_display(struct fb_var_screeninfo *var,
                              struct fb_info *info)
{ … }

static int vesa_setpalette(int regno, unsigned red, unsigned green,
			    unsigned blue)
{ … }

static int vesafb_setcolreg(unsigned regno, unsigned red, unsigned green,
			    unsigned blue, unsigned transp,
			    struct fb_info *info)
{ … }

/*
 * fb_ops.fb_destroy is called by the last put_fb_info() call at the end
 * of unregister_framebuffer() or fb_release(). Do any cleanup here.
 */
static void vesafb_destroy(struct fb_info *info)
{ … }

static struct fb_ops vesafb_ops = …;

static int vesafb_setup(char *options)
{ … }

static int vesafb_probe(struct platform_device *dev)
{ … }

static void vesafb_remove(struct platform_device *pdev)
{ … }

static struct platform_driver vesafb_driver = …;

module_platform_driver(…) …;
MODULE_LICENSE(…) …;