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1587 lines
39 KiB
1587 lines
39 KiB
/*
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* Linux/drivers/video/retz3fb.c -- RetinaZ3 frame buffer device
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*
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* Copyright (C) 1997 Jes Sorensen
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*
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* This file is based on the CyberVision64 frame buffer device and
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* the generic Cirrus Logic driver.
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*
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* cyberfb.c: Copyright (C) 1996 Martin Apel,
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* Geert Uytterhoeven
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* clgen.c: Copyright (C) 1996 Frank Neumann
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*
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* History:
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* - 22 Jan 97: Initial work
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* - 14 Feb 97: Screen initialization works somewhat, still only
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* 8-bit packed pixel is supported.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive
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* for more details.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/tty.h>
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#include <linux/slab.h>
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#include <linux/delay.h>
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#include <linux/fb.h>
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#include <linux/zorro.h>
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#include <linux/init.h>
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#include <asm/uaccess.h>
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#include <asm/system.h>
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#include <asm/irq.h>
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#include <asm/pgtable.h>
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#include <asm/io.h>
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#include <video/fbcon.h>
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#include <video/fbcon-cfb8.h>
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#include <video/fbcon-cfb16.h>
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#include "retz3fb.h"
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/* #define DEBUG if(1) */
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#define DEBUG if(0)
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/*
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* Reserve space for one pattern line.
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*
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* For the time being we only support 4MB boards!
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*/
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#define PAT_MEM_SIZE 16*3
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#define PAT_MEM_OFF (4*1024*1024 - PAT_MEM_SIZE)
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struct retz3fb_par {
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int xres;
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int yres;
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int xres_vir;
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int yres_vir;
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int xoffset;
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int yoffset;
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int bpp;
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struct fb_bitfield red;
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struct fb_bitfield green;
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struct fb_bitfield blue;
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struct fb_bitfield transp;
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int pixclock;
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int left_margin; /* time from sync to picture */
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int right_margin; /* time from picture to sync */
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int upper_margin; /* time from sync to picture */
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int lower_margin;
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int hsync_len; /* length of horizontal sync */
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int vsync_len; /* length of vertical sync */
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int vmode;
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int accel;
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};
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struct display_data {
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long h_total; /* Horizontal Total */
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long h_sstart; /* Horizontal Sync Start */
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long h_sstop; /* Horizontal Sync Stop */
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long h_bstart; /* Horizontal Blank Start */
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long h_bstop; /* Horizontal Blank Stop */
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long h_dispend; /* Horizontal Display End */
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long v_total; /* Vertical Total */
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long v_sstart; /* Vertical Sync Start */
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long v_sstop; /* Vertical Sync Stop */
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long v_bstart; /* Vertical Blank Start */
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long v_bstop; /* Vertical Blank Stop */
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long v_dispend; /* Horizontal Display End */
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};
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struct retz3_fb_info {
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struct fb_info info;
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unsigned char *base;
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unsigned char *fbmem;
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unsigned long fbsize;
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volatile unsigned char *regs;
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unsigned long physfbmem;
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unsigned long physregs;
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int current_par_valid; /* set to 0 by memset */
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int blitbusy;
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struct display disp;
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struct retz3fb_par current_par;
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unsigned char color_table [256][3];
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};
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static char fontname[40] __initdata = { 0 };
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#define retz3info(info) ((struct retz3_fb_info *)(info))
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#define fbinfo(info) ((struct fb_info *)(info))
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/*
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* Frame Buffer Name
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*/
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static char retz3fb_name[16] = "RetinaZ3";
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/*
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* A small info on how to convert XFree86 timing values into fb
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* timings - by Frank Neumann:
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*
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An XFree86 mode line consists of the following fields:
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"800x600" 50 800 856 976 1040 600 637 643 666
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< name > DCF HR SH1 SH2 HFL VR SV1 SV2 VFL
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The fields in the fb_var_screeninfo structure are:
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unsigned long pixclock; * pixel clock in ps (pico seconds) *
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unsigned long left_margin; * time from sync to picture *
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unsigned long right_margin; * time from picture to sync *
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unsigned long upper_margin; * time from sync to picture *
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unsigned long lower_margin;
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unsigned long hsync_len; * length of horizontal sync *
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unsigned long vsync_len; * length of vertical sync *
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1) Pixelclock:
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xfree: in MHz
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fb: In Picoseconds (ps)
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pixclock = 1000000 / DCF
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2) horizontal timings:
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left_margin = HFL - SH2
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right_margin = SH1 - HR
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hsync_len = SH2 - SH1
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3) vertical timings:
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upper_margin = VFL - SV2
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lower_margin = SV1 - VR
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vsync_len = SV2 - SV1
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Good examples for VESA timings can be found in the XFree86 source tree,
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under "programs/Xserver/hw/xfree86/doc/modeDB.txt".
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*/
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/*
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* Predefined Video Modes
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*/
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static struct {
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const char *name;
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struct fb_var_screeninfo var;
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} retz3fb_predefined[] __initdata = {
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/*
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* NB: it is very important to adjust the pixel-clock to the color-depth.
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*/
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{
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"640x480", { /* 640x480, 8 bpp */
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640, 480, 640, 480, 0, 0, 8, 0,
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{0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
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0, 0, -1, -1, FB_ACCEL_NONE, 39722, 48, 16, 33, 10, 96, 2,
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FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,FB_VMODE_NONINTERLACED
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}
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},
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/*
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ModeLine "800x600" 36 800 824 896 1024 600 601 603 625
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< name > DCF HR SH1 SH2 HFL VR SV1 SV2 VFL
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*/
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{
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"800x600", { /* 800x600, 8 bpp */
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800, 600, 800, 600, 0, 0, 8, 0,
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{0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
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0, 0, -1, -1, FB_ACCELF_TEXT, 27778, 64, 24, 22, 1, 120, 2,
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FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
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}
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},
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{
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"800x600-60", { /* 800x600, 8 bpp */
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800, 600, 800, 600, 0, 0, 8, 0,
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{0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
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0, 0, -1, -1, FB_ACCELF_TEXT, 25000, 88, 40, 23, 1, 128, 4,
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FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
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}
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},
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{
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"800x600-70", { /* 800x600, 8 bpp */
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800, 600, 800, 600, 0, 0, 8, 0,
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{0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
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0, 0, -1, -1, FB_ACCELF_TEXT, 22272, 40, 24, 15, 9, 144, 12,
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FB_SYNC_COMP_HIGH_ACT, FB_VMODE_NONINTERLACED
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}
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},
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/*
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ModeLine "1024x768i" 45 1024 1064 1224 1264 768 777 785 817 interlace
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< name > DCF HR SH1 SH2 HFL VR SV1 SV2 VFL
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*/
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{
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"1024x768i", { /* 1024x768, 8 bpp, interlaced */
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1024, 768, 1024, 768, 0, 0, 8, 0,
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{0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
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0, 0, -1, -1, FB_ACCELF_TEXT, 22222, 40, 40, 32, 9, 160, 8,
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FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_INTERLACED
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}
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},
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{
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"1024x768", {
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1024, 768, 1024, 768, 0, 0, 8, 0,
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{0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
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0, 0, -1, -1, FB_ACCEL_NONE, 12500, 92, 112, 31, 2, 204, 4,
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FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
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}
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},
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{
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"640x480-16", { /* 640x480, 16 bpp */
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640, 480, 640, 480, 0, 0, 16, 0,
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{11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
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0, 0, -1, -1, 0, 38461/2, 28, 32, 12, 10, 96, 2,
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FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,FB_VMODE_NONINTERLACED
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}
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},
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{
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"640x480-24", { /* 640x480, 24 bpp */
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640, 480, 640, 480, 0, 0, 24, 0,
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{8, 8, 8}, {8, 8, 8}, {8, 8, 8}, {0, 0, 0},
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0, 0, -1, -1, 0, 38461/3, 28, 32, 12, 10, 96, 2,
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FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,FB_VMODE_NONINTERLACED
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}
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},
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};
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#define NUM_TOTAL_MODES ARRAY_SIZE(retz3fb_predefined)
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static struct fb_var_screeninfo retz3fb_default;
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static int z3fb_inverse = 0;
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static int z3fb_mode __initdata = 0;
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/*
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* Interface used by the world
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*/
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int retz3fb_setup(char *options);
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static int retz3fb_get_fix(struct fb_fix_screeninfo *fix, int con,
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struct fb_info *info);
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static int retz3fb_get_var(struct fb_var_screeninfo *var, int con,
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struct fb_info *info);
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static int retz3fb_set_var(struct fb_var_screeninfo *var, int con,
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struct fb_info *info);
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static int retz3fb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
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struct fb_info *info);
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static int retz3fb_setcolreg(unsigned int regno, unsigned int red,
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unsigned int green, unsigned int blue,
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unsigned int transp, struct fb_info *info);
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static int retz3fb_blank(int blank, struct fb_info *info);
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/*
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* Interface to the low level console driver
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*/
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int retz3fb_init(void);
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static int z3fb_switch(int con, struct fb_info *info);
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static int z3fb_updatevar(int con, struct fb_info *info);
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/*
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* Text console acceleration
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*/
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#ifdef FBCON_HAS_CFB8
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static struct display_switch fbcon_retz3_8;
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#endif
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/*
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* Accelerated Functions used by the low level console driver
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*/
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static void retz3_bitblt(struct display *p,
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unsigned short curx, unsigned short cury, unsigned
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short destx, unsigned short desty, unsigned short
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width, unsigned short height, unsigned short cmd,
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unsigned short mask);
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/*
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* Hardware Specific Routines
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*/
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static int retz3_encode_fix(struct fb_info *info,
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struct fb_fix_screeninfo *fix,
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struct retz3fb_par *par);
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static int retz3_decode_var(struct fb_var_screeninfo *var,
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struct retz3fb_par *par);
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static int retz3_encode_var(struct fb_var_screeninfo *var,
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struct retz3fb_par *par);
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static int retz3_getcolreg(unsigned int regno, unsigned int *red,
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unsigned int *green, unsigned int *blue,
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unsigned int *transp, struct fb_info *info);
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/*
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* Internal routines
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*/
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static void retz3fb_get_par(struct fb_info *info, struct retz3fb_par *par);
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static void retz3fb_set_par(struct fb_info *info, struct retz3fb_par *par);
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static int do_fb_set_var(struct fb_info *info,
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struct fb_var_screeninfo *var, int isactive);
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static void retz3fb_set_disp(int con, struct fb_info *info);
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static int get_video_mode(const char *name);
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/* -------------------- Hardware specific routines ------------------------- */
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static unsigned short find_fq(unsigned int freq)
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{
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unsigned long f;
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long tmp;
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long prev = 0x7fffffff;
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long n2, n1 = 3;
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unsigned long m;
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unsigned short res = 0;
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if (freq <= 31250000)
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n2 = 3;
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else if (freq <= 62500000)
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n2 = 2;
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else if (freq <= 125000000)
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n2 = 1;
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else if (freq <= 250000000)
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n2 = 0;
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else
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return 0;
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do {
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f = freq >> (10 - n2);
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m = (f * n1) / (14318180/1024);
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if (m > 129)
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break;
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tmp = (((m * 14318180) >> n2) / n1) - freq;
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if (tmp < 0)
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tmp = -tmp;
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if (tmp < prev) {
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prev = tmp;
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res = (((n2 << 5) | (n1-2)) << 8) | (m-2);
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}
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} while ( (++n1) <= 21);
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return res;
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}
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static int retz3_set_video(struct fb_info *info,
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struct fb_var_screeninfo *var,
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struct retz3fb_par *par)
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{
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volatile unsigned char *regs = retz3info(info)->regs;
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unsigned int freq;
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int xres, hfront, hsync, hback;
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int yres, vfront, vsync, vback;
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unsigned char tmp;
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unsigned short best_freq;
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struct display_data data;
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short clocksel = 0; /* Apparantly this is always zero */
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int bpp = var->bits_per_pixel;
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/*
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* XXX
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*/
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if (bpp == 24)
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return 0;
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if ((bpp != 8) && (bpp != 16) && (bpp != 24))
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return -EFAULT;
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par->xoffset = 0;
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par->yoffset = 0;
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xres = var->xres * bpp / 4;
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hfront = var->right_margin * bpp / 4;
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hsync = var->hsync_len * bpp / 4;
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hback = var->left_margin * bpp / 4;
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if (var->vmode & FB_VMODE_DOUBLE)
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{
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yres = var->yres * 2;
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vfront = var->lower_margin * 2;
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vsync = var->vsync_len * 2;
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vback = var->upper_margin * 2;
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}
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else if (var->vmode & FB_VMODE_INTERLACED)
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{
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yres = (var->yres + 1) / 2;
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vfront = (var->lower_margin + 1) / 2;
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vsync = (var->vsync_len + 1) / 2;
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vback = (var->upper_margin + 1) / 2;
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}
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else
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{
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yres = var->yres; /* -1 ? */
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vfront = var->lower_margin;
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vsync = var->vsync_len;
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vback = var->upper_margin;
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}
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data.h_total = (hback / 8) + (xres / 8)
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+ (hfront / 8) + (hsync / 8) - 1 /* + 1 */;
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data.h_dispend = ((xres + bpp - 1)/ 8) - 1;
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data.h_bstart = xres / 8 - 1 /* + 1 */;
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data.h_bstop = data.h_total+1 + 2 + 1;
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data.h_sstart = (xres / 8) + (hfront / 8) + 1;
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data.h_sstop = (xres / 8) + (hfront / 8) + (hsync / 8) + 1;
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data.v_total = yres + vfront + vsync + vback - 1;
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data.v_dispend = yres - 1;
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data.v_bstart = yres - 1;
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data.v_bstop = data.v_total;
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data.v_sstart = yres + vfront - 1 - 2;
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data.v_sstop = yres + vfront + vsync - 1;
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|
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#if 0 /* testing */
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printk("HBS: %i\n", data.h_bstart);
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printk("HSS: %i\n", data.h_sstart);
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printk("HSE: %i\n", data.h_sstop);
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printk("HBE: %i\n", data.h_bstop);
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printk("HT: %i\n", data.h_total);
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printk("hsync: %i\n", hsync);
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printk("hfront: %i\n", hfront);
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printk("hback: %i\n", hback);
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printk("VBS: %i\n", data.v_bstart);
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printk("VSS: %i\n", data.v_sstart);
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printk("VSE: %i\n", data.v_sstop);
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printk("VBE: %i\n", data.v_bstop);
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printk("VT: %i\n", data.v_total);
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printk("vsync: %i\n", vsync);
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printk("vfront: %i\n", vfront);
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printk("vback: %i\n", vback);
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#endif
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|
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if (data.v_total >= 1024)
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printk(KERN_ERR "MAYDAY: v_total >= 1024; bailing out!\n");
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|
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reg_w(regs, GREG_MISC_OUTPUT_W, 0xe3 | ((clocksel & 3) * 0x04));
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reg_w(regs, GREG_FEATURE_CONTROL_W, 0x00);
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|
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seq_w(regs, SEQ_RESET, 0x00);
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|
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
|
|
|