video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related files, directories for backlight, console, linux logo, lots of fbdev device drivers, fbdev framework files. Make some order into the chaos by creating drivers/video/fbdev directory, and move all fbdev related files there. No functionality is changed, although I guess it is possible that some subtle Makefile build order related issue could be created by this patch. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Rob Clark <robdclark@gmail.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Tomi Valkeinen
667
drivers/video/fbdev/hgafb.c
Normal file
667
drivers/video/fbdev/hgafb.c
Normal file
@@ -0,0 +1,667 @@
|
||||
/*
|
||||
* linux/drivers/video/hgafb.c -- Hercules graphics adaptor frame buffer device
|
||||
*
|
||||
* Created 25 Nov 1999 by Ferenc Bakonyi (fero@drama.obuda.kando.hu)
|
||||
* Based on skeletonfb.c by Geert Uytterhoeven and
|
||||
* mdacon.c by Andrew Apted
|
||||
*
|
||||
* History:
|
||||
*
|
||||
* - Revision 0.1.8 (23 Oct 2002): Ported to new framebuffer api.
|
||||
*
|
||||
* - Revision 0.1.7 (23 Jan 2001): fix crash resulting from MDA only cards
|
||||
* being detected as Hercules. (Paul G.)
|
||||
* - Revision 0.1.6 (17 Aug 2000): new style structs
|
||||
* documentation
|
||||
* - Revision 0.1.5 (13 Mar 2000): spinlocks instead of saveflags();cli();etc
|
||||
* minor fixes
|
||||
* - Revision 0.1.4 (24 Jan 2000): fixed a bug in hga_card_detect() for
|
||||
* HGA-only systems
|
||||
* - Revision 0.1.3 (22 Jan 2000): modified for the new fb_info structure
|
||||
* screen is cleared after rmmod
|
||||
* virtual resolutions
|
||||
* module parameter 'nologo={0|1}'
|
||||
* the most important: boot logo :)
|
||||
* - Revision 0.1.0 (6 Dec 1999): faster scrolling and minor fixes
|
||||
* - First release (25 Nov 1999)
|
||||
*
|
||||
* This file is subject to the terms and conditions of the GNU General Public
|
||||
* License. See the file COPYING in the main directory of this archive
|
||||
* for more details.
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/errno.h>
|
||||
#include <linux/spinlock.h>
|
||||
#include <linux/string.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/fb.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/ioport.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <asm/io.h>
|
||||
#include <asm/vga.h>
|
||||
|
||||
#if 0
|
||||
#define DPRINTK(args...) printk(KERN_DEBUG __FILE__": " ##args)
|
||||
#else
|
||||
#define DPRINTK(args...)
|
||||
#endif
|
||||
|
||||
#if 0
|
||||
#define CHKINFO(ret) if (info != &fb_info) { printk(KERN_DEBUG __FILE__": This should never happen, line:%d \n", __LINE__); return ret; }
|
||||
#else
|
||||
#define CHKINFO(ret)
|
||||
#endif
|
||||
|
||||
/* Description of the hardware layout */
|
||||
|
||||
static void __iomem *hga_vram; /* Base of video memory */
|
||||
static unsigned long hga_vram_len; /* Size of video memory */
|
||||
|
||||
#define HGA_ROWADDR(row) ((row%4)*8192 + (row>>2)*90)
|
||||
#define HGA_TXT 0
|
||||
#define HGA_GFX 1
|
||||
|
||||
static inline u8 __iomem * rowaddr(struct fb_info *info, u_int row)
|
||||
{
|
||||
return info->screen_base + HGA_ROWADDR(row);
|
||||
}
|
||||
|
||||
static int hga_mode = -1; /* 0 = txt, 1 = gfx mode */
|
||||
|
||||
static enum { TYPE_HERC, TYPE_HERCPLUS, TYPE_HERCCOLOR } hga_type;
|
||||
static char *hga_type_name;
|
||||
|
||||
#define HGA_INDEX_PORT 0x3b4 /* Register select port */
|
||||
#define HGA_VALUE_PORT 0x3b5 /* Register value port */
|
||||
#define HGA_MODE_PORT 0x3b8 /* Mode control port */
|
||||
#define HGA_STATUS_PORT 0x3ba /* Status and Config port */
|
||||
#define HGA_GFX_PORT 0x3bf /* Graphics control port */
|
||||
|
||||
/* HGA register values */
|
||||
|
||||
#define HGA_CURSOR_BLINKING 0x00
|
||||
#define HGA_CURSOR_OFF 0x20
|
||||
#define HGA_CURSOR_SLOWBLINK 0x60
|
||||
|
||||
#define HGA_MODE_GRAPHICS 0x02
|
||||
#define HGA_MODE_VIDEO_EN 0x08
|
||||
#define HGA_MODE_BLINK_EN 0x20
|
||||
#define HGA_MODE_GFX_PAGE1 0x80
|
||||
|
||||
#define HGA_STATUS_HSYNC 0x01
|
||||
#define HGA_STATUS_VSYNC 0x80
|
||||
#define HGA_STATUS_VIDEO 0x08
|
||||
|
||||
#define HGA_CONFIG_COL132 0x08
|
||||
#define HGA_GFX_MODE_EN 0x01
|
||||
#define HGA_GFX_PAGE_EN 0x02
|
||||
|
||||
/* Global locks */
|
||||
|
||||
static DEFINE_SPINLOCK(hga_reg_lock);
|
||||
|
||||
/* Framebuffer driver structures */
|
||||
|
||||
static struct fb_var_screeninfo hga_default_var = {
|
||||
.xres = 720,
|
||||
.yres = 348,
|
||||
.xres_virtual = 720,
|
||||
.yres_virtual = 348,
|
||||
.bits_per_pixel = 1,
|
||||
.red = {0, 1, 0},
|
||||
.green = {0, 1, 0},
|
||||
.blue = {0, 1, 0},
|
||||
.transp = {0, 0, 0},
|
||||
.height = -1,
|
||||
.width = -1,
|
||||
};
|
||||
|
||||
static struct fb_fix_screeninfo hga_fix = {
|
||||
.id = "HGA",
|
||||
.type = FB_TYPE_PACKED_PIXELS, /* (not sure) */
|
||||
.visual = FB_VISUAL_MONO10,
|
||||
.xpanstep = 8,
|
||||
.ypanstep = 8,
|
||||
.line_length = 90,
|
||||
.accel = FB_ACCEL_NONE
|
||||
};
|
||||
|
||||
/* Don't assume that tty1 will be the initial current console. */
|
||||
static int release_io_port = 0;
|
||||
static int release_io_ports = 0;
|
||||
static bool nologo = 0;
|
||||
|
||||
/* -------------------------------------------------------------------------
|
||||
*
|
||||
* Low level hardware functions
|
||||
*
|
||||
* ------------------------------------------------------------------------- */
|
||||
|
||||
static void write_hga_b(unsigned int val, unsigned char reg)
|
||||
{
|
||||
outb_p(reg, HGA_INDEX_PORT);
|
||||
outb_p(val, HGA_VALUE_PORT);
|
||||
}
|
||||
|
||||
static void write_hga_w(unsigned int val, unsigned char reg)
|
||||
{
|
||||
outb_p(reg, HGA_INDEX_PORT); outb_p(val >> 8, HGA_VALUE_PORT);
|
||||
outb_p(reg+1, HGA_INDEX_PORT); outb_p(val & 0xff, HGA_VALUE_PORT);
|
||||
}
|
||||
|
||||
static int test_hga_b(unsigned char val, unsigned char reg)
|
||||
{
|
||||
outb_p(reg, HGA_INDEX_PORT);
|
||||
outb (val, HGA_VALUE_PORT);
|
||||
udelay(20); val = (inb_p(HGA_VALUE_PORT) == val);
|
||||
return val;
|
||||
}
|
||||
|
||||
static void hga_clear_screen(void)
|
||||
{
|
||||
unsigned char fillchar = 0xbf; /* magic */
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&hga_reg_lock, flags);
|
||||
if (hga_mode == HGA_TXT)
|
||||
fillchar = ' ';
|
||||
else if (hga_mode == HGA_GFX)
|
||||
fillchar = 0x00;
|
||||
spin_unlock_irqrestore(&hga_reg_lock, flags);
|
||||
if (fillchar != 0xbf)
|
||||
memset_io(hga_vram, fillchar, hga_vram_len);
|
||||
}
|
||||
|
||||
static void hga_txt_mode(void)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&hga_reg_lock, flags);
|
||||
outb_p(HGA_MODE_VIDEO_EN | HGA_MODE_BLINK_EN, HGA_MODE_PORT);
|
||||
outb_p(0x00, HGA_GFX_PORT);
|
||||
outb_p(0x00, HGA_STATUS_PORT);
|
||||
|
||||
write_hga_b(0x61, 0x00); /* horizontal total */
|
||||
write_hga_b(0x50, 0x01); /* horizontal displayed */
|
||||
write_hga_b(0x52, 0x02); /* horizontal sync pos */
|
||||
write_hga_b(0x0f, 0x03); /* horizontal sync width */
|
||||
|
||||
write_hga_b(0x19, 0x04); /* vertical total */
|
||||
write_hga_b(0x06, 0x05); /* vertical total adjust */
|
||||
write_hga_b(0x19, 0x06); /* vertical displayed */
|
||||
write_hga_b(0x19, 0x07); /* vertical sync pos */
|
||||
|
||||
write_hga_b(0x02, 0x08); /* interlace mode */
|
||||
write_hga_b(0x0d, 0x09); /* maximum scanline */
|
||||
write_hga_b(0x0c, 0x0a); /* cursor start */
|
||||
write_hga_b(0x0d, 0x0b); /* cursor end */
|
||||
|
||||
write_hga_w(0x0000, 0x0c); /* start address */
|
||||
write_hga_w(0x0000, 0x0e); /* cursor location */
|
||||
|
||||
hga_mode = HGA_TXT;
|
||||
spin_unlock_irqrestore(&hga_reg_lock, flags);
|
||||
}
|
||||
|
||||
static void hga_gfx_mode(void)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&hga_reg_lock, flags);
|
||||
outb_p(0x00, HGA_STATUS_PORT);
|
||||
outb_p(HGA_GFX_MODE_EN, HGA_GFX_PORT);
|
||||
outb_p(HGA_MODE_VIDEO_EN | HGA_MODE_GRAPHICS, HGA_MODE_PORT);
|
||||
|
||||
write_hga_b(0x35, 0x00); /* horizontal total */
|
||||
write_hga_b(0x2d, 0x01); /* horizontal displayed */
|
||||
write_hga_b(0x2e, 0x02); /* horizontal sync pos */
|
||||
write_hga_b(0x07, 0x03); /* horizontal sync width */
|
||||
|
||||
write_hga_b(0x5b, 0x04); /* vertical total */
|
||||
write_hga_b(0x02, 0x05); /* vertical total adjust */
|
||||
write_hga_b(0x57, 0x06); /* vertical displayed */
|
||||
write_hga_b(0x57, 0x07); /* vertical sync pos */
|
||||
|
||||
write_hga_b(0x02, 0x08); /* interlace mode */
|
||||
write_hga_b(0x03, 0x09); /* maximum scanline */
|
||||
write_hga_b(0x00, 0x0a); /* cursor start */
|
||||
write_hga_b(0x00, 0x0b); /* cursor end */
|
||||
|
||||
write_hga_w(0x0000, 0x0c); /* start address */
|
||||
write_hga_w(0x0000, 0x0e); /* cursor location */
|
||||
|
||||
hga_mode = HGA_GFX;
|
||||
spin_unlock_irqrestore(&hga_reg_lock, flags);
|
||||
}
|
||||
|
||||
static void hga_show_logo(struct fb_info *info)
|
||||
{
|
||||
/*
|
||||
void __iomem *dest = hga_vram;
|
||||
char *logo = linux_logo_bw;
|
||||
int x, y;
|
||||
|
||||
for (y = 134; y < 134 + 80 ; y++) * this needs some cleanup *
|
||||
for (x = 0; x < 10 ; x++)
|
||||
writeb(~*(logo++),(dest + HGA_ROWADDR(y) + x + 40));
|
||||
*/
|
||||
}
|
||||
|
||||
static void hga_pan(unsigned int xoffset, unsigned int yoffset)
|
||||
{
|
||||
unsigned int base;
|
||||
unsigned long flags;
|
||||
|
||||
base = (yoffset / 8) * 90 + xoffset;
|
||||
spin_lock_irqsave(&hga_reg_lock, flags);
|
||||
write_hga_w(base, 0x0c); /* start address */
|
||||
spin_unlock_irqrestore(&hga_reg_lock, flags);
|
||||
DPRINTK("hga_pan: base:%d\n", base);
|
||||
}
|
||||
|
||||
static void hga_blank(int blank_mode)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&hga_reg_lock, flags);
|
||||
if (blank_mode) {
|
||||
outb_p(0x00, HGA_MODE_PORT); /* disable video */
|
||||
} else {
|
||||
outb_p(HGA_MODE_VIDEO_EN | HGA_MODE_GRAPHICS, HGA_MODE_PORT);
|
||||
}
|
||||
spin_unlock_irqrestore(&hga_reg_lock, flags);
|
||||
}
|
||||
|
||||
static int hga_card_detect(void)
|
||||
{
|
||||
int count = 0;
|
||||
void __iomem *p, *q;
|
||||
unsigned short p_save, q_save;
|
||||
|
||||
hga_vram_len = 0x08000;
|
||||
|
||||
hga_vram = ioremap(0xb0000, hga_vram_len);
|
||||
|
||||
if (request_region(0x3b0, 12, "hgafb"))
|
||||
release_io_ports = 1;
|
||||
if (request_region(0x3bf, 1, "hgafb"))
|
||||
release_io_port = 1;
|
||||
|
||||
/* do a memory check */
|
||||
|
||||
p = hga_vram;
|
||||
q = hga_vram + 0x01000;
|
||||
|
||||
p_save = readw(p); q_save = readw(q);
|
||||
|
||||
writew(0xaa55, p); if (readw(p) == 0xaa55) count++;
|
||||
writew(0x55aa, p); if (readw(p) == 0x55aa) count++;
|
||||
writew(p_save, p);
|
||||
|
||||
if (count != 2)
|
||||
goto error;
|
||||
|
||||
/* Ok, there is definitely a card registering at the correct
|
||||
* memory location, so now we do an I/O port test.
|
||||
*/
|
||||
|
||||
if (!test_hga_b(0x66, 0x0f)) /* cursor low register */
|
||||
goto error;
|
||||
|
||||
if (!test_hga_b(0x99, 0x0f)) /* cursor low register */
|
||||
goto error;
|
||||
|
||||
/* See if the card is a Hercules, by checking whether the vsync
|
||||
* bit of the status register is changing. This test lasts for
|
||||
* approximately 1/10th of a second.
|
||||
*/
|
||||
|
||||
p_save = q_save = inb_p(HGA_STATUS_PORT) & HGA_STATUS_VSYNC;
|
||||
|
||||
for (count=0; count < 50000 && p_save == q_save; count++) {
|
||||
q_save = inb(HGA_STATUS_PORT) & HGA_STATUS_VSYNC;
|
||||
udelay(2);
|
||||
}
|
||||
|
||||
if (p_save == q_save)
|
||||
goto error;
|
||||
|
||||
switch (inb_p(HGA_STATUS_PORT) & 0x70) {
|
||||
case 0x10:
|
||||
hga_type = TYPE_HERCPLUS;
|
||||
hga_type_name = "HerculesPlus";
|
||||
break;
|
||||
case 0x50:
|
||||
hga_type = TYPE_HERCCOLOR;
|
||||
hga_type_name = "HerculesColor";
|
||||
break;
|
||||
default:
|
||||
hga_type = TYPE_HERC;
|
||||
hga_type_name = "Hercules";
|
||||
break;
|
||||
}
|
||||
return 1;
|
||||
error:
|
||||
if (release_io_ports)
|
||||
release_region(0x3b0, 12);
|
||||
if (release_io_port)
|
||||
release_region(0x3bf, 1);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* hgafb_open - open the framebuffer device
|
||||
* @info:pointer to fb_info object containing info for current hga board
|
||||
* @int:open by console system or userland.
|
||||
*/
|
||||
|
||||
static int hgafb_open(struct fb_info *info, int init)
|
||||
{
|
||||
hga_gfx_mode();
|
||||
hga_clear_screen();
|
||||
if (!nologo) hga_show_logo(info);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* hgafb_open - open the framebuffer device
|
||||
* @info:pointer to fb_info object containing info for current hga board
|
||||
* @int:open by console system or userland.
|
||||
*/
|
||||
|
||||
static int hgafb_release(struct fb_info *info, int init)
|
||||
{
|
||||
hga_txt_mode();
|
||||
hga_clear_screen();
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* hgafb_setcolreg - set color registers
|
||||
* @regno:register index to set
|
||||
* @red:red value, unused
|
||||
* @green:green value, unused
|
||||
* @blue:blue value, unused
|
||||
* @transp:transparency value, unused
|
||||
* @info:unused
|
||||
*
|
||||
* This callback function is used to set the color registers of a HGA
|
||||
* board. Since we have only two fixed colors only @regno is checked.
|
||||
* A zero is returned on success and 1 for failure.
|
||||
*/
|
||||
|
||||
static int hgafb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
|
||||
u_int transp, struct fb_info *info)
|
||||
{
|
||||
if (regno > 1)
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* hga_pan_display - pan or wrap the display
|
||||
* @var:contains new xoffset, yoffset and vmode values
|
||||
* @info:pointer to fb_info object containing info for current hga board
|
||||
*
|
||||
* This function looks only at xoffset, yoffset and the %FB_VMODE_YWRAP
|
||||
* flag in @var. If input parameters are correct it calls hga_pan() to
|
||||
* program the hardware. @info->var is updated to the new values.
|
||||
* A zero is returned on success and %-EINVAL for failure.
|
||||
*/
|
||||
|
||||
static int hgafb_pan_display(struct fb_var_screeninfo *var,
|
||||
struct fb_info *info)
|
||||
{
|
||||
if (var->vmode & FB_VMODE_YWRAP) {
|
||||
if (var->yoffset < 0 ||
|
||||
var->yoffset >= info->var.yres_virtual ||
|
||||
var->xoffset)
|
||||
return -EINVAL;
|
||||
} else {
|
||||
if (var->xoffset + info->var.xres > info->var.xres_virtual
|
||||
|| var->yoffset + info->var.yres > info->var.yres_virtual
|
||||
|| var->yoffset % 8)
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
hga_pan(var->xoffset, var->yoffset);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* hgafb_blank - (un)blank the screen
|
||||
* @blank_mode:blanking method to use
|
||||
* @info:unused
|
||||
*
|
||||
* Blank the screen if blank_mode != 0, else unblank.
|
||||
* Implements VESA suspend and powerdown modes on hardware that supports
|
||||
* disabling hsync/vsync:
|
||||
* @blank_mode == 2 means suspend vsync,
|
||||
* @blank_mode == 3 means suspend hsync,
|
||||
* @blank_mode == 4 means powerdown.
|
||||
*/
|
||||
|
||||
static int hgafb_blank(int blank_mode, struct fb_info *info)
|
||||
{
|
||||
hga_blank(blank_mode);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Accel functions
|
||||
*/
|
||||
static void hgafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
|
||||
{
|
||||
u_int rows, y;
|
||||
u8 __iomem *dest;
|
||||
|
||||
y = rect->dy;
|
||||
|
||||
for (rows = rect->height; rows--; y++) {
|
||||
dest = rowaddr(info, y) + (rect->dx >> 3);
|
||||
switch (rect->rop) {
|
||||
case ROP_COPY:
|
||||
memset_io(dest, rect->color, (rect->width >> 3));
|
||||
break;
|
||||
case ROP_XOR:
|
||||
fb_writeb(~(fb_readb(dest)), dest);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void hgafb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
|
||||
{
|
||||
u_int rows, y1, y2;
|
||||
u8 __iomem *src;
|
||||
u8 __iomem *dest;
|
||||
|
||||
if (area->dy <= area->sy) {
|
||||
y1 = area->sy;
|
||||
y2 = area->dy;
|
||||
|
||||
for (rows = area->height; rows--; ) {
|
||||
src = rowaddr(info, y1) + (area->sx >> 3);
|
||||
dest = rowaddr(info, y2) + (area->dx >> 3);
|
||||
memmove(dest, src, (area->width >> 3));
|
||||
y1++;
|
||||
y2++;
|
||||
}
|
||||
} else {
|
||||
y1 = area->sy + area->height - 1;
|
||||
y2 = area->dy + area->height - 1;
|
||||
|
||||
for (rows = area->height; rows--;) {
|
||||
src = rowaddr(info, y1) + (area->sx >> 3);
|
||||
dest = rowaddr(info, y2) + (area->dx >> 3);
|
||||
memmove(dest, src, (area->width >> 3));
|
||||
y1--;
|
||||
y2--;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void hgafb_imageblit(struct fb_info *info, const struct fb_image *image)
|
||||
{
|
||||
u8 __iomem *dest;
|
||||
u8 *cdat = (u8 *) image->data;
|
||||
u_int rows, y = image->dy;
|
||||
u_int x;
|
||||
u8 d;
|
||||
|
||||
for (rows = image->height; rows--; y++) {
|
||||
for (x = 0; x < image->width; x+= 8) {
|
||||
d = *cdat++;
|
||||
dest = rowaddr(info, y) + ((image->dx + x)>> 3);
|
||||
fb_writeb(d, dest);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static struct fb_ops hgafb_ops = {
|
||||
.owner = THIS_MODULE,
|
||||
.fb_open = hgafb_open,
|
||||
.fb_release = hgafb_release,
|
||||
.fb_setcolreg = hgafb_setcolreg,
|
||||
.fb_pan_display = hgafb_pan_display,
|
||||
.fb_blank = hgafb_blank,
|
||||
.fb_fillrect = hgafb_fillrect,
|
||||
.fb_copyarea = hgafb_copyarea,
|
||||
.fb_imageblit = hgafb_imageblit,
|
||||
};
|
||||
|
||||
/* ------------------------------------------------------------------------- *
|
||||
*
|
||||
* Functions in fb_info
|
||||
*
|
||||
* ------------------------------------------------------------------------- */
|
||||
|
||||
/* ------------------------------------------------------------------------- */
|
||||
|
||||
/*
|
||||
* Initialization
|
||||
*/
|
||||
|
||||
static int hgafb_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct fb_info *info;
|
||||
|
||||
if (! hga_card_detect()) {
|
||||
printk(KERN_INFO "hgafb: HGA card not detected.\n");
|
||||
if (hga_vram)
|
||||
iounmap(hga_vram);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
printk(KERN_INFO "hgafb: %s with %ldK of memory detected.\n",
|
||||
hga_type_name, hga_vram_len/1024);
|
||||
|
||||
info = framebuffer_alloc(0, &pdev->dev);
|
||||
if (!info) {
|
||||
iounmap(hga_vram);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
hga_fix.smem_start = (unsigned long)hga_vram;
|
||||
hga_fix.smem_len = hga_vram_len;
|
||||
|
||||
info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
|
||||
info->var = hga_default_var;
|
||||
info->fix = hga_fix;
|
||||
info->monspecs.hfmin = 0;
|
||||
info->monspecs.hfmax = 0;
|
||||
info->monspecs.vfmin = 10000;
|
||||
info->monspecs.vfmax = 10000;
|
||||
info->monspecs.dpms = 0;
|
||||
info->fbops = &hgafb_ops;
|
||||
info->screen_base = hga_vram;
|
||||
|
||||
if (register_framebuffer(info) < 0) {
|
||||
framebuffer_release(info);
|
||||
iounmap(hga_vram);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
fb_info(info, "%s frame buffer device\n", info->fix.id);
|
||||
platform_set_drvdata(pdev, info);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int hgafb_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct fb_info *info = platform_get_drvdata(pdev);
|
||||
|
||||
hga_txt_mode();
|
||||
hga_clear_screen();
|
||||
|
||||
if (info) {
|
||||
unregister_framebuffer(info);
|
||||
framebuffer_release(info);
|
||||
}
|
||||
|
||||
iounmap(hga_vram);
|
||||
|
||||
if (release_io_ports)
|
||||
release_region(0x3b0, 12);
|
||||
|
||||
if (release_io_port)
|
||||
release_region(0x3bf, 1);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_driver hgafb_driver = {
|
||||
.probe = hgafb_probe,
|
||||
.remove = hgafb_remove,
|
||||
.driver = {
|
||||
.name = "hgafb",
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device *hgafb_device;
|
||||
|
||||
static int __init hgafb_init(void)
|
||||
{
|
||||
int ret;
|
||||
|
||||
if (fb_get_options("hgafb", NULL))
|
||||
return -ENODEV;
|
||||
|
||||
ret = platform_driver_register(&hgafb_driver);
|
||||
|
||||
if (!ret) {
|
||||
hgafb_device = platform_device_register_simple("hgafb", 0, NULL, 0);
|
||||
|
||||
if (IS_ERR(hgafb_device)) {
|
||||
platform_driver_unregister(&hgafb_driver);
|
||||
ret = PTR_ERR(hgafb_device);
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void __exit hgafb_exit(void)
|
||||
{
|
||||
platform_device_unregister(hgafb_device);
|
||||
platform_driver_unregister(&hgafb_driver);
|
||||
}
|
||||
|
||||
/* -------------------------------------------------------------------------
|
||||
*
|
||||
* Modularization
|
||||
*
|
||||
* ------------------------------------------------------------------------- */
|
||||
|
||||
MODULE_AUTHOR("Ferenc Bakonyi (fero@drama.obuda.kando.hu)");
|
||||
MODULE_DESCRIPTION("FBDev driver for Hercules Graphics Adaptor");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
module_param(nologo, bool, 0);
|
||||
MODULE_PARM_DESC(nologo, "Disables startup logo if != 0 (default=0)");
|
||||
module_init(hgafb_init);
|
||||
module_exit(hgafb_exit);
|
||||
Reference in New Issue
Block a user