retz3fb.c
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上传日期:2013-02-24
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- /*
- * 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/tty.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 currcon;
- 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_set_cmap(struct fb_cmap *cmap, int kspc, int con,
- 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);
- static void z3fb_blank(int blank, 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);
- static int retz3_setcolreg(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 do_install_cmap(int con, struct fb_info *info);
- 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: %in", data.h_bstart);
- printk("HSS: %in", data.h_sstart);
- printk("HSE: %in", data.h_sstop);
- printk("HBE: %in", data.h_bstop);
- printk("HT: %in", data.h_total);
- printk("hsync: %in", hsync);
- printk("hfront: %in", hfront);
- printk("hback: %in", hback);
- printk("VBS: %in", data.v_bstart);
- printk("VSS: %in", data.v_sstart);
- printk("VSE: %in", data.v_sstop);
- printk("VBE: %in", data.v_bstop);
- printk("VT: %in", data.v_total);
- printk("vsync: %in", vsync);
- printk("vfront: %in", vfront);
- printk("vback: %in", 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: %ldn", data.h_total);
- crt_w(regs, CRT_HOR_TOTAL, data.h_total & 0xff);
- DEBUG printk("CRT_HOR_DISP_ENA_END: %ldn", data.h_dispend);
- crt_w(regs, CRT_HOR_DISP_ENA_END, (data.h_dispend) & 0xff);
- DEBUG printk("CRT_START_HOR_BLANK: %ldn", data.h_bstart);
- crt_w(regs, CRT_START_HOR_BLANK, data.h_bstart & 0xff);
- DEBUG printk("CRT_END_HOR_BLANK: 128+%ldn", data.h_bstop % 32);
- crt_w(regs, CRT_END_HOR_BLANK, 0x80 | (data.h_bstop & 0x1f));
- DEBUG printk("CRT_START_HOR_RETR: %ldn", 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: %dn", tmp);
- crt_w(regs, CRT_END_HOR_RETR, tmp);
- DEBUG printk("CRT_VER_TOTAL: %ldn", 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: %dn", 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: %dn", 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: %ldn", 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+%ldn", 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+%ldn", 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: %ldn", data.v_dispend & 0xff);
- crt_w(regs, CRT_VER_DISP_ENA_END, (data.v_dispend & 0xff));
- DEBUG printk("CRT_START_VER_BLANK: %ldn", data.v_bstart & 0xff);
- crt_w(regs, CRT_START_VER_BLANK, (data.v_bstart & 0xff));
- DEBUG printk("CRT_END_VER_BLANK: %ldn", data.v_bstop & 0xff);
- crt_w(regs, CRT_END_VER_BLANK, (data.v_bstop & 0xff));
- DEBUG printk("CRT_MODE_CONTROL: 0xe3n");
- crt_w(regs, CRT_MODE_CONTROL, 0xe3);
- DEBUG printk("CRT_LINE_COMPARE: 0xffn");
- 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: %dn", 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: %dn", 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: %dn", 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: %in", 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 retz3_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;
- }
- static void do_install_cmap(int con, struct fb_info *info)
- {
- struct retz3_fb_info *zinfo = retz3info(info);
- if (con != zinfo->currcon)
- return;
- if (fb_display[con].cmap.len)
- fb_set_cmap(&fb_display[con].cmap, 1, retz3_setcolreg, info);
- else
- fb_set_cmap(fb_default_cmap(1<<fb_display[con].var.bits_per_pixel),
- 1, retz3_setcolreg, info);
- }
- /*
- * 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->screen_base = zinfo->fbmem;
- 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 == zinfo->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->screen_base = zinfo->fbmem;
- 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)
- {
- struct retz3_fb_info *zinfo = retz3info(info);
- if (con == zinfo->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;
- }
- /*
- * Set the Colormap
- */
- static int retz3fb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
- struct fb_info *info)
- {
- int err;
- struct retz3_fb_info *zinfo = retz3info(info);
- if (!fb_display[con].cmap.len) { /* no colormap allocated? */
- if ((err = fb_alloc_cmap(&fb_display[con].cmap,
- 1<<fb_display[con].var.bits_per_pixel,
- 0)))
- return err;
- }
- if (con == zinfo->currcon) /* current console? */
- return(fb_set_cmap(cmap, kspc, retz3_setcolreg, info));
- else
- fb_copy_cmap(cmap, &fb_display[con].cmap, kspc ? 0 : 1);
- 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: retz3fb_set_cmap,
- };
- 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)) {
- strncpy(fontname, this_opt+5, 39);
- fontname[39] = ' ';
- } 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 its 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);
- retz3_setcolreg (255, 56<<8, 100<<8, 160<<8, 0, fb_info);
- retz3_setcolreg (254, 0, 0, 0, 0, fb_info);
- strcpy(fb_info->modename, retz3fb_name);
- fb_info->changevar = NULL;
- fb_info->node = -1;
- fb_info->fbops = &retz3fb_ops;
- fb_info->disp = &zinfo->disp;
- fb_info->switch_con = &z3fb_switch;
- fb_info->updatevar = &z3fb_updatevar;
- fb_info->blank = &z3fb_blank;
- fb_info->flags = FBINFO_FLAG_DEFAULT;
- strncpy(fb_info->fontname, fontname, 40);
- 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 memoryn", GET_FB_IDX(fb_info->node),
- fb_info->modename, zinfo->fbsize>>10);
- /* FIXME: This driver cannot be unloaded yet */
- MOD_INC_USE_COUNT;
- res = 0;
- }
- return res;
- }
- static int z3fb_switch(int con, struct fb_info *info)
- {
- struct retz3_fb_info *zinfo = retz3info(info);
- /* Do we have to save the colormap? */
- if (fb_display[zinfo->currcon].cmap.len)
- fb_get_cmap(&fb_display[zinfo->currcon].cmap, 1,
- retz3_getcolreg, info);
- do_fb_set_var(info, &fb_display[con].var, 1);
- zinfo->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;
- }
- /*
- * Blank the display.
- */
- static void z3fb_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]);
- }
- }
- /*
- * 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();
- }
- void cleanup_module(void)
- {
- /*
- * Not reached because the usecount will never
- * be decremented to zero
- *
- * FIXME: clean up ... *
- */
- }
- #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