Proxmox-Port/linux-loongson
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson synced 2025-10-31 14:30:50 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
74e8b51d25
linux-loongson/drivers/video/retz3fb.c
Jon Smirl a8f340e394 [PATCH] vt: Remove VT-specific declarations and definitions from tty.h 
MAX_NR_CONSOLES, fg_console, want_console and last_console are more of a
function of the VT layer than the TTY one.  Moving these to vt.h and vt_kern.h
allows all of the framebuffer and VT console drivers to remove their
dependency on tty.h.

[akpm@osdl.org: fix alpha build]
Signed-off-by: Jon Smirl <jonsmir@gmail.com>
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-10 13:24:16 -07:00

1587 lines
39 KiB
C
Raw Blame History

/*
* Linux/drivers/video/retz3fb.c -- RetinaZ3 frame buffer device
*
* Copyright (C) 1997 Jes Sorensen
*
* This file is based on the CyberVision64 frame buffer device and
* the generic Cirrus Logic driver.
*
* cyberfb.c: Copyright (C) 1996 Martin Apel,
* Geert Uytterhoeven
* clgen.c: Copyright (C) 1996 Frank Neumann
*
* History:
* - 22 Jan 97: Initial work
* - 14 Feb 97: Screen initialization works somewhat, still only
* 8-bit packed pixel is supported.
*
* 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/string.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/zorro.h>
#include <linux/init.h>
#include <asm/uaccess.h>
#include <asm/system.h>
#include <asm/irq.h>
#include <asm/pgtable.h>
#include <asm/io.h>
#include <video/fbcon.h>
#include <video/fbcon-cfb8.h>
#include <video/fbcon-cfb16.h>
#include "retz3fb.h"
/* #define DEBUG if(1) */
#define DEBUG if(0)
/*
* Reserve space for one pattern line.
*
* For the time being we only support 4MB boards!
*/
#define PAT_MEM_SIZE 16*3
#define PAT_MEM_OFF (4*1024*1024 - PAT_MEM_SIZE)
struct retz3fb_par {
int xres;
int yres;
int xres_vir;
int yres_vir;
int xoffset;
int yoffset;
int bpp;
struct fb_bitfield red;
struct fb_bitfield green;
struct fb_bitfield blue;
struct fb_bitfield transp;
int pixclock;
int left_margin; /* time from sync to picture */
int right_margin; /* time from picture to sync */
int upper_margin; /* time from sync to picture */
int lower_margin;
int hsync_len; /* length of horizontal sync */
int vsync_len; /* length of vertical sync */
int vmode;
int accel;
};
struct display_data {
long h_total; /* Horizontal Total */
long h_sstart; /* Horizontal Sync Start */
long h_sstop; /* Horizontal Sync Stop */
long h_bstart; /* Horizontal Blank Start */
long h_bstop; /* Horizontal Blank Stop */
long h_dispend; /* Horizontal Display End */
long v_total; /* Vertical Total */
long v_sstart; /* Vertical Sync Start */
long v_sstop; /* Vertical Sync Stop */
long v_bstart; /* Vertical Blank Start */
long v_bstop; /* Vertical Blank Stop */
long v_dispend; /* Horizontal Display End */
};
struct retz3_fb_info {
struct fb_info info;
unsigned char *base;
unsigned char *fbmem;
unsigned long fbsize;
volatile unsigned char *regs;
unsigned long physfbmem;
unsigned long physregs;
int current_par_valid; /* set to 0 by memset */
int blitbusy;
struct display disp;
struct retz3fb_par current_par;
unsigned char color_table [256][3];
};
static char fontname[40] __initdata = { 0 };
#define retz3info(info) ((struct retz3_fb_info *)(info))
#define fbinfo(info) ((struct fb_info *)(info))
/*
* Frame Buffer Name
*/
static char retz3fb_name[16] = "RetinaZ3";
/*
* A small info on how to convert XFree86 timing values into fb
* timings - by Frank Neumann:
*
An XFree86 mode line consists of the following fields:
"800x600" 50 800 856 976 1040 600 637 643 666
< name > DCF HR SH1 SH2 HFL VR SV1 SV2 VFL
The fields in the fb_var_screeninfo structure are:
unsigned long pixclock; * pixel clock in ps (pico seconds) *
unsigned long left_margin; * time from sync to picture *
unsigned long right_margin; * time from picture to sync *
unsigned long upper_margin; * time from sync to picture *
unsigned long lower_margin;
unsigned long hsync_len; * length of horizontal sync *
unsigned long vsync_len; * length of vertical sync *
1) Pixelclock:
xfree: in MHz
fb: In Picoseconds (ps)
pixclock = 1000000 / DCF
2) horizontal timings:
left_margin = HFL - SH2
right_margin = SH1 - HR
hsync_len = SH2 - SH1
3) vertical timings:
upper_margin = VFL - SV2
lower_margin = SV1 - VR
vsync_len = SV2 - SV1
Good examples for VESA timings can be found in the XFree86 source tree,
under "programs/Xserver/hw/xfree86/doc/modeDB.txt".
*/
/*
* Predefined Video Modes
*/
static struct {
const char *name;
struct fb_var_screeninfo var;
} retz3fb_predefined[] __initdata = {
/*
* NB: it is very important to adjust the pixel-clock to the color-depth.
*/
{
"640x480", { /* 640x480, 8 bpp */
640, 480, 640, 480, 0, 0, 8, 0,
{0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
0, 0, -1, -1, FB_ACCEL_NONE, 39722, 48, 16, 33, 10, 96, 2,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,FB_VMODE_NONINTERLACED
}
},
/*
ModeLine "800x600" 36 800 824 896 1024 600 601 603 625
< name > DCF HR SH1 SH2 HFL VR SV1 SV2 VFL
*/
{
"800x600", { /* 800x600, 8 bpp */
800, 600, 800, 600, 0, 0, 8, 0,
{0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
0, 0, -1, -1, FB_ACCELF_TEXT, 27778, 64, 24, 22, 1, 120, 2,
FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}
},
{
"800x600-60", { /* 800x600, 8 bpp */
800, 600, 800, 600, 0, 0, 8, 0,
{0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
0, 0, -1, -1, FB_ACCELF_TEXT, 25000, 88, 40, 23, 1, 128, 4,
FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}
},
{
"800x600-70", { /* 800x600, 8 bpp */
800, 600, 800, 600, 0, 0, 8, 0,
{0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
0, 0, -1, -1, FB_ACCELF_TEXT, 22272, 40, 24, 15, 9, 144, 12,
FB_SYNC_COMP_HIGH_ACT, FB_VMODE_NONINTERLACED
}
},
/*
ModeLine "1024x768i" 45 1024 1064 1224 1264 768 777 785 817 interlace
< name > DCF HR SH1 SH2 HFL VR SV1 SV2 VFL
*/
{
"1024x768i", { /* 1024x768, 8 bpp, interlaced */
1024, 768, 1024, 768, 0, 0, 8, 0,
{0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
0, 0, -1, -1, FB_ACCELF_TEXT, 22222, 40, 40, 32, 9, 160, 8,
FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_INTERLACED
}
},
{
"1024x768", {
1024, 768, 1024, 768, 0, 0, 8, 0,
{0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
0, 0, -1, -1, FB_ACCEL_NONE, 12500, 92, 112, 31, 2, 204, 4,
FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}
},
{
"640x480-16", { /* 640x480, 16 bpp */
640, 480, 640, 480, 0, 0, 16, 0,
{11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
0, 0, -1, -1, 0, 38461/2, 28, 32, 12, 10, 96, 2,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,FB_VMODE_NONINTERLACED
}
},
{
"640x480-24", { /* 640x480, 24 bpp */
640, 480, 640, 480, 0, 0, 24, 0,
{8, 8, 8}, {8, 8, 8}, {8, 8, 8}, {0, 0, 0},
0, 0, -1, -1, 0, 38461/3, 28, 32, 12, 10, 96, 2,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,FB_VMODE_NONINTERLACED
}
},
};
#define NUM_TOTAL_MODES ARRAY_SIZE(retz3fb_predefined)
static struct fb_var_screeninfo retz3fb_default;
static int z3fb_inverse = 0;
static int z3fb_mode __initdata = 0;
/*
* Interface used by the world
*/
int retz3fb_setup(char *options);
static int retz3fb_get_fix(struct fb_fix_screeninfo *fix, int con,
struct fb_info *info);
static int retz3fb_get_var(struct fb_var_screeninfo *var, int con,
struct fb_info *info);
static int retz3fb_set_var(struct fb_var_screeninfo *var, int con,
struct fb_info *info);
static int retz3fb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
struct fb_info *info);
static int retz3fb_setcolreg(unsigned int regno, unsigned int red,
unsigned int green, unsigned int blue,
unsigned int transp, struct fb_info *info);
static int retz3fb_blank(int blank, struct fb_info *info);
/*
* Interface to the low level console driver
*/
int retz3fb_init(void);
static int z3fb_switch(int con, struct fb_info *info);
static int z3fb_updatevar(int con, struct fb_info *info);
/*
* Text console acceleration
*/
#ifdef FBCON_HAS_CFB8
static struct display_switch fbcon_retz3_8;
#endif
/*
* Accelerated Functions used by the low level console driver
*/
static void retz3_bitblt(struct display *p,
unsigned short curx, unsigned short cury, unsigned
short destx, unsigned short desty, unsigned short
width, unsigned short height, unsigned short cmd,
unsigned short mask);
/*
* Hardware Specific Routines
*/
static int retz3_encode_fix(struct fb_info *info,
struct fb_fix_screeninfo *fix,
struct retz3fb_par *par);
static int retz3_decode_var(struct fb_var_screeninfo *var,
struct retz3fb_par *par);
static int retz3_encode_var(struct fb_var_screeninfo *var,
struct retz3fb_par *par);
static int retz3_getcolreg(unsigned int regno, unsigned int *red,
unsigned int *green, unsigned int *blue,
unsigned int *transp, struct fb_info *info);
/*
* Internal routines
*/
static void retz3fb_get_par(struct fb_info *info, struct retz3fb_par *par);
static void retz3fb_set_par(struct fb_info *info, struct retz3fb_par *par);
static int do_fb_set_var(struct fb_info *info,
struct fb_var_screeninfo *var, int isactive);
static void retz3fb_set_disp(int con, struct fb_info *info);
static int get_video_mode(const char *name);
/* -------------------- Hardware specific routines ------------------------- */
static unsigned short find_fq(unsigned int freq)
{
unsigned long f;
long tmp;
long prev = 0x7fffffff;
long n2, n1 = 3;
unsigned long m;
unsigned short res = 0;
if (freq <= 31250000)
n2 = 3;
else if (freq <= 62500000)
n2 = 2;
else if (freq <= 125000000)
n2 = 1;
else if (freq <= 250000000)
n2 = 0;
else
return 0;
do {
f = freq >> (10 - n2);
m = (f * n1) / (14318180/1024);
if (m > 129)
break;
tmp = (((m * 14318180) >> n2) / n1) - freq;
if (tmp < 0)
tmp = -tmp;
if (tmp < prev) {
prev = tmp;
res = (((n2 << 5) | (n1-2)) << 8) | (m-2);
}
} while ( (++n1) <= 21);
return res;
}
static int retz3_set_video(struct fb_info *info,
struct fb_var_screeninfo *var,
struct retz3fb_par *par)
{
volatile unsigned char *regs = retz3info(info)->regs;
unsigned int freq;
int xres, hfront, hsync, hback;
int yres, vfront, vsync, vback;
unsigned char tmp;
unsigned short best_freq;
struct display_data data;
short clocksel = 0; /* Apparantly this is always zero */
int bpp = var->bits_per_pixel;
/*
* XXX
*/
if (bpp == 24)
return 0;
if ((bpp != 8) && (bpp != 16) && (bpp != 24))
return -EFAULT;
par->xoffset = 0;
par->yoffset = 0;
xres = var->xres * bpp / 4;
hfront = var->right_margin * bpp / 4;
hsync = var->hsync_len * bpp / 4;
hback = var->left_margin * bpp / 4;
if (var->vmode & FB_VMODE_DOUBLE)
{
yres = var->yres * 2;
vfront = var->lower_margin * 2;
vsync = var->vsync_len * 2;
vback = var->upper_margin * 2;
}
else if (var->vmode & FB_VMODE_INTERLACED)
{
yres = (var->yres + 1) / 2;
vfront = (var->lower_margin + 1) / 2;
vsync = (var->vsync_len + 1) / 2;
vback = (var->upper_margin + 1) / 2;
}
else
{
yres = var->yres; /* -1 ? */
vfront = var->lower_margin;
vsync = var->vsync_len;
vback = var->upper_margin;
}
data.h_total = (hback / 8) + (xres / 8)
+ (hfront / 8) + (hsync / 8) - 1 /* + 1 */;
data.h_dispend = ((xres + bpp - 1)/ 8) - 1;
data.h_bstart = xres / 8 - 1 /* + 1 */;
data.h_bstop = data.h_total+1 + 2 + 1;
data.h_sstart = (xres / 8) + (hfront / 8) + 1;
data.h_sstop = (xres / 8) + (hfront / 8) + (hsync / 8) + 1;
data.v_total = yres + vfront + vsync + vback - 1;
data.v_dispend = yres - 1;
data.v_bstart = yres - 1;
data.v_bstop = data.v_total;
data.v_sstart = yres + vfront - 1 - 2;
data.v_sstop = yres + vfront + vsync - 1;
#if 0 /* testing */
printk("HBS: %i\n", data.h_bstart);
printk("HSS: %i\n", data.h_sstart);
printk("HSE: %i\n", data.h_sstop);
printk("HBE: %i\n", data.h_bstop);
printk("HT: %i\n", data.h_total);
printk("hsync: %i\n", hsync);
printk("hfront: %i\n", hfront);
printk("hback: %i\n", hback);
printk("VBS: %i\n", data.v_bstart);
printk("VSS: %i\n", data.v_sstart);
printk("VSE: %i\n", data.v_sstop);
printk("VBE: %i\n", data.v_bstop);
printk("VT: %i\n", data.v_total);
printk("vsync: %i\n", vsync);
printk("vfront: %i\n", vfront);
printk("vback: %i\n", vback);
#endif
if (data.v_total >= 1024)
printk(KERN_ERR "MAYDAY: v_total >= 1024; bailing out!\n");
reg_w(regs, GREG_MISC_OUTPUT_W, 0xe3 | ((clocksel & 3) * 0x04));
reg_w(regs, GREG_FEATURE_CONTROL_W, 0x00);
seq_w(regs, SEQ_RESET, 0x00);
seq_w(regs, SEQ_RESET, 0x03); /* reset sequencer logic */
/*
* CLOCKING_MODE bits:
* 2: This one is only set for certain text-modes, wonder if
* it may be for EGA-lines? (it was referred to as CLKDIV2)
* (The CL drivers sets it to 0x21 with the comment:
* FullBandwidth (video off) and 8/9 dot clock)
*/
seq_w(regs, SEQ_CLOCKING_MODE, 0x01 | 0x00 /* 0x08 */);
seq_w(regs, SEQ_MAP_MASK, 0x0f); /* enable writing to plane 0-3 */
seq_w(regs, SEQ_CHAR_MAP_SELECT, 0x00); /* doesn't matter in gfx-mode */
seq_w(regs, SEQ_MEMORY_MODE, 0x06); /* CL driver says 0x0e for 256 col mode*/
seq_w(regs, SEQ_RESET, 0x01);
seq_w(regs, SEQ_RESET, 0x03);
seq_w(regs, SEQ_EXTENDED_ENABLE, 0x05);
seq_w(regs, SEQ_CURSOR_CONTROL, 0x00); /* disable cursor */
seq_w(regs, SEQ_PRIM_HOST_OFF_HI, 0x00);
seq_w(regs, SEQ_PRIM_HOST_OFF_HI, 0x00);
seq_w(regs, SEQ_LINEAR_0, 0x4a);
seq_w(regs, SEQ_LINEAR_1, 0x00);
seq_w(regs, SEQ_SEC_HOST_OFF_HI, 0x00);
seq_w(regs, SEQ_SEC_HOST_OFF_LO, 0x00);
seq_w(regs, SEQ_EXTENDED_MEM_ENA, 0x3 | 0x4 | 0x10 | 0x40);
/*
* The lower 4 bits (0-3) are used to set the font-width for
* text-mode - DON'T try to set this for gfx-mode.
*/
seq_w(regs, SEQ_EXT_CLOCK_MODE, 0x10);
seq_w(regs, SEQ_EXT_VIDEO_ADDR, 0x03);
/*
* Extended Pixel Control:
* bit 0: text-mode=0, gfx-mode=1 (Graphics Byte ?)
* bit 1: (Packed/Nibble Pixel Format ?)
* bit 4-5: depth, 0=1-8bpp, 1=9-16bpp, 2=17-24bpp
*/
seq_w(regs, SEQ_EXT_PIXEL_CNTL, 0x01 | (((bpp / 8) - 1) << 4));
seq_w(regs, SEQ_BUS_WIDTH_FEEDB, 0x04);
seq_w(regs, SEQ_COLOR_EXP_WFG, 0x01);
seq_w(regs, SEQ_COLOR_EXP_WBG, 0x00);
seq_w(regs, SEQ_EXT_RW_CONTROL, 0x00);
seq_w(regs, SEQ_MISC_FEATURE_SEL, (0x51 | (clocksel & 8)));
seq_w(regs, SEQ_COLOR_KEY_CNTL, 0x40);
seq_w(regs, SEQ_COLOR_KEY_MATCH0, 0x00);
seq_w(regs, SEQ_COLOR_KEY_MATCH1, 0x00);
seq_w(regs, SEQ_COLOR_KEY_MATCH2, 0x00);
seq_w(regs, SEQ_CRC_CONTROL, 0x00);
seq_w(regs, SEQ_PERF_SELECT, 0x10);
seq_w(regs, SEQ_ACM_APERTURE_1, 0x00);
seq_w(regs, SEQ_ACM_APERTURE_2, 0x30);
seq_w(regs, SEQ_ACM_APERTURE_3, 0x00);
seq_w(regs, SEQ_MEMORY_MAP_CNTL, 0x03);
/* unlock register CRT0..CRT7 */
crt_w(regs, CRT_END_VER_RETR, (data.v_sstop & 0x0f) | 0x20);
/* Zuerst zu schreibende Werte nur per printk ausgeben */
DEBUG printk("CRT_HOR_TOTAL: %ld\n", data.h_total);
crt_w(regs, CRT_HOR_TOTAL, data.h_total & 0xff);
DEBUG printk("CRT_HOR_DISP_ENA_END: %ld\n", data.h_dispend);
crt_w(regs, CRT_HOR_DISP_ENA_END, (data.h_dispend) & 0xff);
DEBUG printk("CRT_START_HOR_BLANK: %ld\n", data.h_bstart);
crt_w(regs, CRT_START_HOR_BLANK, data.h_bstart & 0xff);
DEBUG printk("CRT_END_HOR_BLANK: 128+%ld\n", data.h_bstop % 32);
crt_w(regs, CRT_END_HOR_BLANK, 0x80 | (data.h_bstop & 0x1f));
DEBUG printk("CRT_START_HOR_RETR: %ld\n", data.h_sstart);
crt_w(regs, CRT_START_HOR_RETR, data.h_sstart & 0xff);
tmp = (data.h_sstop & 0x1f);
if (data.h_bstop & 0x20)
tmp |= 0x80;
DEBUG printk("CRT_END_HOR_RETR: %d\n", tmp);
crt_w(regs, CRT_END_HOR_RETR, tmp);
DEBUG printk("CRT_VER_TOTAL: %ld\n", data.v_total & 0xff);
crt_w(regs, CRT_VER_TOTAL, (data.v_total & 0xff));
tmp = 0x10; /* LineCompare bit #9 */
if (data.v_total & 256)
tmp |= 0x01;
if (data.v_dispend & 256)
tmp |= 0x02;
if (data.v_sstart & 256)
tmp |= 0x04;
if (data.v_bstart & 256)
tmp |= 0x08;
if (data.v_total & 512)
tmp |= 0x20;
if (data.v_dispend & 512)
tmp |= 0x40;
if (data.v_sstart & 512)
tmp |= 0x80;
DEBUG printk("CRT_OVERFLOW: %d\n", tmp);
crt_w(regs, CRT_OVERFLOW, tmp);
crt_w(regs, CRT_PRESET_ROW_SCAN, 0x00); /* not CL !!! */
tmp = 0x40; /* LineCompare bit #8 */
if (data.v_bstart & 512)
tmp |= 0x20;
if (var->vmode & FB_VMODE_DOUBLE)
tmp |= 0x80;
DEBUG printk("CRT_MAX_SCAN_LINE: %d\n", tmp);
crt_w(regs, CRT_MAX_SCAN_LINE, tmp);
crt_w(regs, CRT_CURSOR_START, 0x00);
crt_w(regs, CRT_CURSOR_END, 8 & 0x1f); /* font height */
crt_w(regs, CRT_START_ADDR_HIGH, 0x00);
crt_w(regs, CRT_START_ADDR_LOW, 0x00);
crt_w(regs, CRT_CURSOR_LOC_HIGH, 0x00);
crt_w(regs, CRT_CURSOR_LOC_LOW, 0x00);
DEBUG printk("CRT_START_VER_RETR: %ld\n", data.v_sstart & 0xff);
crt_w(regs, CRT_START_VER_RETR, (data.v_sstart & 0xff));
#if 1
/* 5 refresh cycles per scanline */
DEBUG printk("CRT_END_VER_RETR: 64+32+%ld\n", data.v_sstop % 16);
crt_w(regs, CRT_END_VER_RETR, ((data.v_sstop & 0x0f) | 0x40 | 0x20));
#else
DEBUG printk("CRT_END_VER_RETR: 128+32+%ld\n", data.v_sstop % 16);
crt_w(regs, CRT_END_VER_RETR, ((data.v_sstop & 0x0f) | 128 | 32));
#endif
DEBUG printk("CRT_VER_DISP_ENA_END: %ld\n", data.v_dispend & 0xff);
crt_w(regs, CRT_VER_DISP_ENA_END, (data.v_dispend & 0xff));
DEBUG printk("CRT_START_VER_BLANK: %ld\n", data.v_bstart & 0xff);
crt_w(regs, CRT_START_VER_BLANK, (data.v_bstart & 0xff));
DEBUG printk("CRT_END_VER_BLANK: %ld\n", data.v_bstop & 0xff);
crt_w(regs, CRT_END_VER_BLANK, (data.v_bstop & 0xff));
DEBUG printk("CRT_MODE_CONTROL: 0xe3\n");
crt_w(regs, CRT_MODE_CONTROL, 0xe3);
DEBUG printk("CRT_LINE_COMPARE: 0xff\n");
crt_w(regs, CRT_LINE_COMPARE, 0xff);
tmp = (var->xres_virtual / 8) * (bpp / 8);
crt_w(regs, CRT_OFFSET, tmp);
crt_w(regs, CRT_UNDERLINE_LOC, 0x07); /* probably font-height - 1 */
tmp = 0x20; /* Enable extended end bits */
if (data.h_total & 0x100)
tmp |= 0x01;
if ((data.h_dispend) & 0x100)
tmp |= 0x02;
if (data.h_bstart & 0x100)
tmp |= 0x04;
if (data.h_sstart & 0x100)
tmp |= 0x08;
if (var->vmode & FB_VMODE_INTERLACED)
tmp |= 0x10;
DEBUG printk("CRT_EXT_HOR_TIMING1: %d\n", tmp);
crt_w(regs, CRT_EXT_HOR_TIMING1, tmp);
tmp = 0x00;
if (((var->xres_virtual / 8) * (bpp / 8)) & 0x100)
tmp |= 0x10;
crt_w(regs, CRT_EXT_START_ADDR, tmp);
tmp = 0x00;
if (data.h_total & 0x200)
tmp |= 0x01;
if ((data.h_dispend) & 0x200)
tmp |= 0x02;
if (data.h_bstart & 0x200)
tmp |= 0x04;
if (data.h_sstart & 0x200)
tmp |= 0x08;
tmp |= ((data.h_bstop & 0xc0) >> 2);
tmp |= ((data.h_sstop & 0x60) << 1);
crt_w(regs, CRT_EXT_HOR_TIMING2, tmp);
DEBUG printk("CRT_EXT_HOR_TIMING2: %d\n", tmp);
tmp = 0x10; /* Line compare bit 10 */
if (data.v_total & 0x400)
tmp |= 0x01;
if ((data.v_dispend) & 0x400)
tmp |= 0x02;
if (data.v_bstart & 0x400)
tmp |= 0x04;
if (data.v_sstart & 0x400)
tmp |= 0x08;
tmp |= ((data.v_bstop & 0x300) >> 3);
if (data.v_sstop & 0x10)
tmp |= 0x80;
crt_w(regs, CRT_EXT_VER_TIMING, tmp);
DEBUG printk("CRT_EXT_VER_TIMING: %d\n", tmp);
crt_w(regs, CRT_MONITOR_POWER, 0x00);
/*
* Convert from ps to Hz.
*/
freq = 2000000000 / var->pixclock;
freq = freq * 500;
best_freq = find_fq(freq);
pll_w(regs, 0x02, best_freq);
best_freq = find_fq(61000000);
pll_w(regs, 0x0a, best_freq);
pll_w(regs, 0x0e, 0x22);
gfx_w(regs, GFX_SET_RESET, 0x00);
gfx_w(regs, GFX_ENABLE_SET_RESET, 0x00);
gfx_w(regs, GFX_COLOR_COMPARE, 0x00);
gfx_w(regs, GFX_DATA_ROTATE, 0x00);
gfx_w(regs, GFX_READ_MAP_SELECT, 0x00);
gfx_w(regs, GFX_GRAPHICS_MODE, 0x00);
gfx_w(regs, GFX_MISC, 0x05);
gfx_w(regs, GFX_COLOR_XCARE, 0x0f);
gfx_w(regs, GFX_BITMASK, 0xff);
reg_r(regs, ACT_ADDRESS_RESET);
attr_w(regs, ACT_PALETTE0 , 0x00);
attr_w(regs, ACT_PALETTE1 , 0x01);
attr_w(regs, ACT_PALETTE2 , 0x02);
attr_w(regs, ACT_PALETTE3 , 0x03);
attr_w(regs, ACT_PALETTE4 , 0x04);
attr_w(regs, ACT_PALETTE5 , 0x05);
attr_w(regs, ACT_PALETTE6 , 0x06);
attr_w(regs, ACT_PALETTE7 , 0x07);
attr_w(regs, ACT_PALETTE8 , 0x08);
attr_w(regs, ACT_PALETTE9 , 0x09);
attr_w(regs, ACT_PALETTE10, 0x0a);
attr_w(regs, ACT_PALETTE11, 0x0b);
attr_w(regs, ACT_PALETTE12, 0x0c);
attr_w(regs, ACT_PALETTE13, 0x0d);
attr_w(regs, ACT_PALETTE14, 0x0e);
attr_w(regs, ACT_PALETTE15, 0x0f);
reg_r(regs, ACT_ADDRESS_RESET);
attr_w(regs, ACT_ATTR_MODE_CNTL, 0x09); /* 0x01 for CL */
attr_w(regs, ACT_OVERSCAN_COLOR, 0x00);
attr_w(regs, ACT_COLOR_PLANE_ENA, 0x0f);
attr_w(regs, ACT_HOR_PEL_PANNING, 0x00);
attr_w(regs, ACT_COLOR_SELECT, 0x00);
reg_r(regs, ACT_ADDRESS_RESET);
reg_w(regs, ACT_DATA, 0x20);
reg_w(regs, VDAC_MASK, 0xff);
/*
* Extended palette addressing ???
*/
switch (bpp){
case 8:
reg_w(regs, 0x83c6, 0x00);
break;
case 16:
reg_w(regs, 0x83c6, 0x60);
break;
case 24:
reg_w(regs, 0x83c6, 0xe0);
break;
default:
printk(KERN_INFO "Illegal color-depth: %i\n", bpp);
}
reg_w(regs, VDAC_ADDRESS, 0x00);
seq_w(regs, SEQ_MAP_MASK, 0x0f );
return 0;
}
/*
* This function should fill in the `fix' structure based on the
* values in the `par' structure.
*/
static int retz3_encode_fix(struct fb_info *info,
struct fb_fix_screeninfo *fix,
struct retz3fb_par *par)
{
struct retz3_fb_info *zinfo = retz3info(info);
memset(fix, 0, sizeof(struct fb_fix_screeninfo));
strcpy(fix->id, retz3fb_name);
fix->smem_start = zinfo->physfbmem;
fix->smem_len = zinfo->fbsize;
fix->mmio_start = zinfo->physregs;
fix->mmio_len = 0x00c00000;
fix->type = FB_TYPE_PACKED_PIXELS;
fix->type_aux = 0;
if (par->bpp == 8)
fix->visual = FB_VISUAL_PSEUDOCOLOR;
else
fix->visual = FB_VISUAL_TRUECOLOR;
fix->xpanstep = 0;
fix->ypanstep = 0;
fix->ywrapstep = 0;
fix->line_length = 0;
fix->accel = FB_ACCEL_NCR_77C32BLT;
return 0;
}
/*
* Get the video params out of `var'. If a value doesn't fit, round
* it up, if it's too big, return -EINVAL.
*/
static int retz3_decode_var(struct fb_var_screeninfo *var,
struct retz3fb_par *par)
{
par->xres = var->xres;
par->yres = var->yres;
par->xres_vir = var->xres_virtual;
par->yres_vir = var->yres_virtual;
par->bpp = var->bits_per_pixel;
par->pixclock = var->pixclock;
par->vmode = var->vmode;
par->red = var->red;
par->green = var->green;
par->blue = var->blue;
par->transp = var->transp;
par->left_margin = var->left_margin;
par->right_margin = var->right_margin;
par->upper_margin = var->upper_margin;
par->lower_margin = var->lower_margin;
par->hsync_len = var->hsync_len;
par->vsync_len = var->vsync_len;
if (var->accel_flags & FB_ACCELF_TEXT)
par->accel = FB_ACCELF_TEXT;
else
par->accel = 0;
return 0;
}
/*
* Fill the `var' structure based on the values in `par' and maybe
* other values read out of the hardware.
*/
static int retz3_encode_var(struct fb_var_screeninfo *var,
struct retz3fb_par *par)
{
memset(var, 0, sizeof(struct fb_var_screeninfo));
var->xres = par->xres;
var->yres = par->yres;
var->xres_virtual = par->xres_vir;
var->yres_virtual = par->yres_vir;
var->xoffset = 0;
var->yoffset = 0;
var->bits_per_pixel = par->bpp;
var->grayscale = 0;
var->red = par->red;
var->green = par->green;
var->blue = par->blue;
var->transp = par->transp;
var->nonstd = 0;
var->activate = 0;
var->height = -1;
var->width = -1;
var->accel_flags = (par->accel && par->bpp == 8) ? FB_ACCELF_TEXT : 0;
var->pixclock = par->pixclock;
var->sync = 0; /* ??? */
var->left_margin = par->left_margin;
var->right_margin = par->right_margin;
var->upper_margin = par->upper_margin;
var->lower_margin = par->lower_margin;
var->hsync_len = par->hsync_len;
var->vsync_len = par->vsync_len;
var->vmode = par->vmode;
return 0;
}
/*
* Set a single color register. Return != 0 for invalid regno.
*/
static int retz3fb_setcolreg(unsigned int regno, unsigned int red,
unsigned int green, unsigned int blue,
unsigned int transp, struct fb_info *info)
{
struct retz3_fb_info *zinfo = retz3info(info);
volatile unsigned char *regs = zinfo->regs;
/* We'll get to this */
if (regno > 255)
return 1;
red >>= 10;
green >>= 10;
blue >>= 10;
zinfo->color_table[regno][0] = red;
zinfo->color_table[regno][1] = green;
zinfo->color_table[regno][2] = blue;
reg_w(regs, VDAC_ADDRESS_W, regno);
reg_w(regs, VDAC_DATA, red);
reg_w(regs, VDAC_DATA, green);
reg_w(regs, VDAC_DATA, blue);
return 0;
}
/*
* Read a single color register and split it into
* colors/transparent. Return != 0 for invalid regno.
*/
static int retz3_getcolreg(unsigned int regno, unsigned int *red,
unsigned int *green, unsigned int *blue,
unsigned int *transp, struct fb_info *info)
{
struct retz3_fb_info *zinfo = retz3info(info);
int t;
if (regno > 255)
return 1;
t = zinfo->color_table[regno][0];
*red = (t<<10) | (t<<4) | (t>>2);
t = zinfo->color_table[regno][1];
*green = (t<<10) | (t<<4) | (t>>2);
t = zinfo->color_table[regno][2];
*blue = (t<<10) | (t<<4) | (t>>2);
*transp = 0;
return 0;
}
static inline void retz3_busy(struct display *p)
{
struct retz3_fb_info *zinfo = retz3info(p->fb_info);
volatile unsigned char *acm = zinfo->base + ACM_OFFSET;
unsigned char blt_status;
if (zinfo->blitbusy) {
do{
blt_status = *((acm) + (ACM_START_STATUS + 2));
}while ((blt_status & 1) == 0);
zinfo->blitbusy = 0;
}
}
static void retz3_bitblt (struct display *p,
unsigned short srcx, unsigned short srcy,
unsigned short destx, unsigned short desty,
unsigned short width, unsigned short height,
unsigned short cmd, unsigned short mask)
{
struct fb_var_screeninfo *var = &p->var;
struct retz3_fb_info *zinfo = retz3info(p->fb_info);
volatile unsigned long *acm = (unsigned long *)(zinfo->base + ACM_OFFSET);
unsigned long *pattern = (unsigned long *)(zinfo->fbmem + PAT_MEM_OFF);
unsigned short mod;
unsigned long tmp;
unsigned long pat, src, dst;
int i, xres_virtual = var->xres_virtual;
short bpp = (var->bits_per_pixel & 0xff);
if (bpp < 8)
bpp = 8;
tmp = mask | (mask << 16);
retz3_busy(p);
i = 0;
do{
*pattern++ = tmp;
}while(i++ < bpp/4);
tmp = cmd << 8;
*(acm + ACM_RASTEROP_ROTATION/4) = tmp;
mod = 0xc0c2;
pat = 8 * PAT_MEM_OFF;
dst = bpp * (destx + desty * xres_virtual);
/*
* Source is not set for clear.
*/
if ((cmd != Z3BLTclear) && (cmd != Z3BLTset)) {
src = bpp * (srcx + srcy * xres_virtual);
if (destx > srcx) {
mod &= ~0x8000;
src += bpp * (width - 1);
dst += bpp * (width - 1);
pat += bpp * 2;
}
if (desty > srcy) {
mod &= ~0x4000;
src += bpp * (height - 1) * xres_virtual;
dst += bpp * (height - 1) * xres_virtual;
pat += bpp * 4;
}
*(acm + ACM_SOURCE/4) = cpu_to_le32(src);
}
*(acm + ACM_PATTERN/4) = cpu_to_le32(pat);
*(acm + ACM_DESTINATION/4) = cpu_to_le32(dst);
tmp = mod << 16;
*(acm + ACM_CONTROL/4) = tmp;
tmp = width | (height << 16);
*(acm + ACM_BITMAP_DIMENSION/4) = cpu_to_le32(tmp);
*(((volatile unsigned char *)acm) + ACM_START_STATUS) = 0x00;
*(((volatile unsigned char *)acm) + ACM_START_STATUS) = 0x01;
zinfo->blitbusy = 1;
}
#if 0
/*
* Move cursor to x, y
*/
static void retz3_MoveCursor (unsigned short x, unsigned short y)
{
/* Guess we gotta deal with the cursor at some point */
}
#endif
/*
* Fill the hardware's `par' structure.
*/
static void retz3fb_get_par(struct fb_info *info, struct retz3fb_par *par)
{
struct retz3_fb_info *zinfo = retz3info(info);
if (zinfo->current_par_valid)
*par = zinfo->current_par;
else
retz3_decode_var(&retz3fb_default, par);
}
static void retz3fb_set_par(struct fb_info *info, struct retz3fb_par *par)
{
struct retz3_fb_info *zinfo = retz3info(info);
zinfo->current_par = *par;
zinfo->current_par_valid = 1;
}
static int do_fb_set_var(struct fb_info *info,
struct fb_var_screeninfo *var, int isactive)
{
int err, activate;
struct retz3fb_par par;
struct retz3_fb_info *zinfo = retz3info(info);
if ((err = retz3_decode_var(var, &par)))
return err;
activate = var->activate;
/* XXX ... what to do about isactive ? */
if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW && isactive)
retz3fb_set_par(info, &par);
retz3_encode_var(var, &par);
var->activate = activate;
retz3_set_video(info, var, &zinfo->current_par);
return 0;
}
/*
* Get the Fixed Part of the Display
*/
static int retz3fb_get_fix(struct fb_fix_screeninfo *fix, int con,
struct fb_info *info)
{
struct retz3fb_par par;
int error = 0;
if (con == -1)
retz3fb_get_par(info, &par);
else
error = retz3_decode_var(&fb_display[con].var, &par);
return(error ? error : retz3_encode_fix(info, fix, &par));
}
/*
* Get the User Defined Part of the Display
*/
static int retz3fb_get_var(struct fb_var_screeninfo *var, int con,
struct fb_info *info)
{
struct retz3fb_par par;
int error = 0;
if (con == -1) {
retz3fb_get_par(info, &par);
error = retz3_encode_var(var, &par);
} else
*var = fb_display[con].var;
return error;
}
static void retz3fb_set_disp(int con, struct fb_info *info)
{
struct fb_fix_screeninfo fix;
struct display *display;
struct retz3_fb_info *zinfo = retz3info(info);
if (con >= 0)
display = &fb_display[con];
else
display = &zinfo->disp; /* used during initialization */
retz3fb_get_fix(&fix, con, info);
if (con == -1)
con = 0;
display->visual = fix.visual;
display->type = fix.type;
display->type_aux = fix.type_aux;
display->ypanstep = fix.ypanstep;
display->ywrapstep = fix.ywrapstep;
display->can_soft_blank = 1;
display->inverse = z3fb_inverse;
/*
* This seems to be about 20% faster.
*/
display->scrollmode = SCROLL_YREDRAW;
switch (display->var.bits_per_pixel) {
#ifdef FBCON_HAS_CFB8
case 8:
if (display->var.accel_flags & FB_ACCELF_TEXT) {
display->dispsw = &fbcon_retz3_8;
retz3_set_video(info, &display->var, &zinfo->current_par);
} else
display->dispsw = &fbcon_cfb8;
break;
#endif
#ifdef FBCON_HAS_CFB16
case 16:
display->dispsw = &fbcon_cfb16;
break;
#endif
default:
display->dispsw = &fbcon_dummy;
break;
}
}
/*
* Set the User Defined Part of the Display
*/
static int retz3fb_set_var(struct fb_var_screeninfo *var, int con,
struct fb_info *info)
{
int err, oldxres, oldyres, oldvxres, oldvyres, oldbpp, oldaccel;
struct display *display;
struct retz3_fb_info *zinfo = retz3info(info);
if (con >= 0)
display = &fb_display[con];
else
display = &zinfo->disp; /* used during initialization */
if ((err = do_fb_set_var(info, var, con == info->currcon)))
return err;
if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) {
oldxres = display->var.xres;
oldyres = display->var.yres;
oldvxres = display->var.xres_virtual;
oldvyres = display->var.yres_virtual;
oldbpp = display->var.bits_per_pixel;
oldaccel = display->var.accel_flags;
display->var = *var;
if (oldxres != var->xres || oldyres != var->yres ||
oldvxres != var->xres_virtual ||
oldvyres != var->yres_virtual ||
oldbpp != var->bits_per_pixel ||
oldaccel != var->accel_flags) {
struct fb_fix_screeninfo fix;
retz3fb_get_fix(&fix, con, info);
display->visual = fix.visual;
display->type = fix.type;
display->type_aux = fix.type_aux;
display->ypanstep = fix.ypanstep;
display->ywrapstep = fix.ywrapstep;
display->line_length = fix.line_length;
display->can_soft_blank = 1;
display->inverse = z3fb_inverse;
switch (display->var.bits_per_pixel) {
#ifdef FBCON_HAS_CFB8
case 8:
if (var->accel_flags & FB_ACCELF_TEXT) {
display->dispsw = &fbcon_retz3_8;
} else
display->dispsw = &fbcon_cfb8;
break;
#endif
#ifdef FBCON_HAS_CFB16
case 16:
display->dispsw = &fbcon_cfb16;
break;
#endif
default:
display->dispsw = &fbcon_dummy;
break;
}
/*
* We still need to find a way to tell the X
* server that the video mem has been fiddled with
* so it redraws the entire screen when switching
* between X and a text console.
*/
retz3_set_video(info, var, &zinfo->current_par);
if (info->changevar)
(*info->changevar)(con);
}
if (oldbpp != var->bits_per_pixel) {
if ((err = fb_alloc_cmap(&display->cmap, 0, 0)))
return err;
do_install_cmap(con, info);
}
}
return 0;
}
/*
* Get the Colormap
*/
static int retz3fb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
struct fb_info *info)
{
if (con == info->currcon) /* current console? */
return(fb_get_cmap(cmap, kspc, retz3_getcolreg, info));
else if (fb_display[con].cmap.len) /* non default colormap? */
fb_copy_cmap(&fb_display[con].cmap, cmap, kspc ? 0 : 2);
else
fb_copy_cmap(fb_default_cmap(1<<fb_display[con].var.bits_per_pixel),
cmap, kspc ? 0 : 2);
return 0;
}
/*
* Blank the display.
*/
static int retz3fb_blank(int blank, struct fb_info *info)
{
struct retz3_fb_info *zinfo = retz3info(info);
volatile unsigned char *regs = retz3info(info)->regs;
short i;
if (blank)
for (i = 0; i < 256; i++){
reg_w(regs, VDAC_ADDRESS_W, i);
reg_w(regs, VDAC_DATA, 0);
reg_w(regs, VDAC_DATA, 0);
reg_w(regs, VDAC_DATA, 0);
}
else
for (i = 0; i < 256; i++){
reg_w(regs, VDAC_ADDRESS_W, i);
reg_w(regs, VDAC_DATA, zinfo->color_table[i][0]);
reg_w(regs, VDAC_DATA, zinfo->color_table[i][1]);
reg_w(regs, VDAC_DATA, zinfo->color_table[i][2]);
}
return 0;
}
static struct fb_ops retz3fb_ops = {
.owner = THIS_MODULE,
.fb_get_fix = retz3fb_get_fix,
.fb_get_var = retz3fb_get_var,
.fb_set_var = retz3fb_set_var,
.fb_get_cmap = retz3fb_get_cmap,
.fb_set_cmap = gen_set_cmap,
.fb_setcolreg = retz3fb_setcolreg,
.fb_blank = retz3fb_blank,
};
int __init retz3fb_setup(char *options)
{
char *this_opt;
if (!options || !*options)
return 0;
while ((this_opt = strsep(&options, ",")) != NULL) {
if (!*this_opt)
continue;
if (!strcmp(this_opt, "inverse")) {
z3fb_inverse = 1;
fb_invert_cmaps();
} else if (!strncmp(this_opt, "font:", 5)) {
strlcpy(fontname, this_opt+5, sizeof(fontname));
} else
z3fb_mode = get_video_mode(this_opt);
}
return 0;
}
/*
* Initialization
*/
int __init retz3fb_init(void)
{
unsigned long board_addr, board_size;
struct zorro_dev *z = NULL;
volatile unsigned char *regs;
struct retz3fb_par par;
struct retz3_fb_info *zinfo;
struct fb_info *fb_info;
short i;
int res = -ENXIO;
while ((z = zorro_find_device(ZORRO_PROD_MACROSYSTEMS_RETINA_Z3, z))) {
board_addr = z->resource.start;
board_size = z->resource.end-z->resource.start+1;
if (!request_mem_region(board_addr, 0x0c00000,
"ncr77c32blt")) {
continue;
if (!request_mem_region(board_addr+VIDEO_MEM_OFFSET,
0x00400000, "RAM"))
release_mem_region(board_addr, 0x00c00000);
continue;
}
if (!(zinfo = kmalloc(sizeof(struct retz3_fb_info),
GFP_KERNEL)))
return -ENOMEM;
memset(zinfo, 0, sizeof(struct retz3_fb_info));
zinfo->base = ioremap(board_addr, board_size);
zinfo->regs = zinfo->base;
zinfo->fbmem = zinfo->base + VIDEO_MEM_OFFSET;
/* Get memory size - for now we asume it's a 4MB board */
zinfo->fbsize = 0x00400000; /* 4 MB */
zinfo->physregs = board_addr;
zinfo->physfbmem = board_addr + VIDEO_MEM_OFFSET;
fb_info = fbinfo(zinfo);
for (i = 0; i < 256; i++){
for (i = 0; i < 256; i++){
zinfo->color_table[i][0] = i;
zinfo->color_table[i][1] = i;
zinfo->color_table[i][2] = i;
}
}
regs = zinfo->regs;
/* Disable hardware cursor */
seq_w(regs, SEQ_CURSOR_Y_INDEX, 0x00);
retz3fb_setcolreg (255, 56<<8, 100<<8, 160<<8, 0, fb_info);
retz3fb_setcolreg (254, 0, 0, 0, 0, fb_info);
strcpy(fb_info->modename, retz3fb_name);
fb_info->changevar = NULL;
fb_info->fbops = &retz3fb_ops;
fb_info->screen_base = zinfo->fbmem;
fb_info->disp = &zinfo->disp;
fb_info->currcon = -1;
fb_info->switch_con = &z3fb_switch;
fb_info->updatevar = &z3fb_updatevar;
fb_info->flags = FBINFO_FLAG_DEFAULT;
strlcpy(fb_info->fontname, fontname, sizeof(fb_info->fontname));
if (z3fb_mode == -1)
retz3fb_default = retz3fb_predefined[0].var;
retz3_decode_var(&retz3fb_default, &par);
retz3_encode_var(&retz3fb_default, &par);
do_fb_set_var(fb_info, &retz3fb_default, 0);
retz3fb_get_var(&zinfo->disp.var, -1, fb_info);
retz3fb_set_disp(-1, fb_info);
do_install_cmap(0, fb_info);
if (register_framebuffer(fb_info) < 0)
return -EINVAL;
printk(KERN_INFO "fb%d: %s frame buffer device, using %ldK of "
"video memory\n", fb_info->node,
fb_info->modename, zinfo->fbsize>>10);
/* FIXME: This driver cannot be unloaded yet */
res = 0;
}
return res;
}
static int z3fb_switch(int con, struct fb_info *info)
{
/* Do we have to save the colormap? */
if (fb_display[info->currcon].cmap.len)
fb_get_cmap(&fb_display[info->currcon].cmap, 1,
retz3_getcolreg, info);
do_fb_set_var(info, &fb_display[con].var, 1);
info->currcon = con;
/* Install new colormap */
do_install_cmap(con, info);
return 0;
}
/*
* Update the `var' structure (called by fbcon.c)
*
* This call looks only at yoffset and the FB_VMODE_YWRAP flag in `var'.
* Since it's called by a kernel driver, no range checking is done.
*/
static int z3fb_updatevar(int con, struct fb_info *info)
{
return 0;
}
/*
* Get a Video Mode
*/
static int __init get_video_mode(const char *name)
{
short i;
for (i = 0; i < NUM_TOTAL_MODES; i++)
if (!strcmp(name, retz3fb_predefined[i].name)){
retz3fb_default = retz3fb_predefined[i].var;
return i;
}
return -1;
}
#ifdef MODULE
MODULE_LICENSE("GPL");
int init_module(void)
{
return retz3fb_init();
}
#endif
/*
* Text console acceleration
*/
#ifdef FBCON_HAS_CFB8
static void retz3_8_bmove(struct display *p, int sy, int sx,
int dy, int dx, int height, int width)
{
int fontwidth = fontwidth(p);
sx *= fontwidth;
dx *= fontwidth;
width *= fontwidth;
retz3_bitblt(p,
(unsigned short)sx,
(unsigned short)(sy*fontheight(p)),
(unsigned short)dx,
(unsigned short)(dy*fontheight(p)),
(unsigned short)width,
(unsigned short)(height*fontheight(p)),
Z3BLTcopy,
0xffff);
}
static void retz3_8_clear(struct vc_data *conp, struct display *p,
int sy, int sx, int height, int width)
{
unsigned short col;
int fontwidth = fontwidth(p);
sx *= fontwidth;
width *= fontwidth;
col = attr_bgcol_ec(p, conp);
col &= 0xff;
col |= (col << 8);
retz3_bitblt(p,
(unsigned short)sx,
(unsigned short)(sy*fontheight(p)),
(unsigned short)sx,
(unsigned short)(sy*fontheight(p)),
(unsigned short)width,
(unsigned short)(height*fontheight(p)),
Z3BLTset,
col);
}
static void retz3_putc(struct vc_data *conp, struct display *p, int c,
int yy, int xx)
{
retz3_busy(p);
fbcon_cfb8_putc(conp, p, c, yy, xx);
}
static void retz3_putcs(struct vc_data *conp, struct display *p,
const unsigned short *s, int count,
int yy, int xx)
{
retz3_busy(p);
fbcon_cfb8_putcs(conp, p, s, count, yy, xx);
}
static void retz3_revc(struct display *p, int xx, int yy)
{
retz3_busy(p);
fbcon_cfb8_revc(p, xx, yy);
}
static void retz3_clear_margins(struct vc_data* conp, struct display* p,
int bottom_only)
{
retz3_busy(p);
fbcon_cfb8_clear_margins(conp, p, bottom_only);
}
static struct display_switch fbcon_retz3_8 = {
.setup = fbcon_cfb8_setup,
.bmove = retz3_8_bmove,
.clear = retz3_8_clear,
.putc = retz3_putc,
.putcs = retz3_putcs,
.revc = retz3_revc,
.clear_margins = retz3_clear_margins,
.fontwidthmask = FONTWIDTH(8)
};
#endif
Reference in New Issue View Git Blame Copy Permalink