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-rw-r--r--board/trab/vfd.c574
1 files changed, 0 insertions, 574 deletions
diff --git a/board/trab/vfd.c b/board/trab/vfd.c
deleted file mode 100644
index 9a2b1ba..0000000
--- a/board/trab/vfd.c
+++ /dev/null
@@ -1,574 +0,0 @@
-/*
- * (C) Copyright 2001
- * Wolfgang Denk, DENX Software Engineering -- wd@denx.de
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-/************************************************************************/
-/* ** DEBUG SETTINGS */
-/************************************************************************/
-
-/* #define DEBUG */
-
-/************************************************************************/
-/* ** HEADER FILES */
-/************************************************************************/
-
-#include <config.h>
-#include <common.h>
-#include <version.h>
-#include <stdarg.h>
-#include <linux/types.h>
-#include <stdio_dev.h>
-#include <asm/arch/s3c24x0_cpu.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#ifdef CONFIG_VFD
-
-/************************************************************************/
-/* ** CONFIG STUFF -- should be moved to board config file */
-/************************************************************************/
-
-/************************************************************************/
-
-#ifndef PAGE_SIZE
-#define PAGE_SIZE 4096
-#endif
-
-#define ROT 0x09
-#define BLAU 0x0C
-#define VIOLETT 0X0D
-
-/* MAGIC */
-#define FRAME_BUF_SIZE ((256*4*56)/8)
-#define frame_buf_offs 4
-
-/* defines for starting Timer3 as CPLD-Clk */
-#define START3 (1 << 16)
-#define UPDATE3 (1 << 17)
-#define INVERT3 (1 << 18)
-#define RELOAD3 (1 << 19)
-
-/* CPLD-Register for controlling vfd-blank-signal */
-#define VFD_DISABLE (*(volatile uchar *)0x04038000=0x0000)
-#define VFD_ENABLE (*(volatile uchar *)0x04038000=0x0001)
-
-/* Supported VFD Types */
-#define VFD_TYPE_T119C 1 /* Noritake T119C VFD */
-#define VFD_TYPE_MN11236 2
-
-/*#define NEW_CPLD_CLK*/
-
-int vfd_board_id;
-
-/* taken from armboot/common/vfd.c */
-unsigned long adr_vfd_table[112][18][2][4][2];
-unsigned char bit_vfd_table[112][18][2][4][2];
-
-/*
- * initialize the values for the VFD-grid-control in the framebuffer
- */
-void init_grid_ctrl(void)
-{
- ulong adr, grid_cycle;
- unsigned int bit, display;
- unsigned char temp, bit_nr;
-
- /*
- * clear frame buffer (logical clear => set to "black")
- */
- memset ((void *)(gd->fb_base), 0, FRAME_BUF_SIZE);
-
- switch (gd->vfd_type) {
- case VFD_TYPE_T119C:
- for (display=0; display<4; display++) {
- for(grid_cycle=0; grid_cycle<56; grid_cycle++) {
- bit = grid_cycle * 256 * 4 +
- (grid_cycle + 200) * 4 +
- frame_buf_offs + display;
- /* wrap arround if offset (see manual S3C2400) */
- if (bit>=FRAME_BUF_SIZE*8)
- bit = bit - (FRAME_BUF_SIZE * 8);
- adr = gd->fb_base + (bit/32) * 4 + (3 - (bit%32) / 8);
- bit_nr = bit % 8;
- bit_nr = (bit_nr > 3) ? bit_nr-4 : bit_nr+4;
- temp=(*(volatile unsigned char*)(adr));
- temp |= (1<<bit_nr);
- (*(volatile unsigned char*)(adr))=temp;
-
- if(grid_cycle<55)
- bit = grid_cycle*256*4+(grid_cycle+201)*4+frame_buf_offs+display;
- else
- bit = grid_cycle*256*4+200*4+frame_buf_offs+display-4; /* grid nr. 0 */
- /* wrap arround if offset (see manual S3C2400) */
- if (bit>=FRAME_BUF_SIZE*8)
- bit = bit-(FRAME_BUF_SIZE*8);
- adr = gd->fb_base+(bit/32)*4+(3-(bit%32)/8);
- bit_nr = bit%8;
- bit_nr = (bit_nr>3)?bit_nr-4:bit_nr+4;
- temp=(*(volatile unsigned char*)(adr));
- temp |= (1<<bit_nr);
- (*(volatile unsigned char*)(adr))=temp;
- }
- }
- break;
- case VFD_TYPE_MN11236:
- for (display=0; display<4; display++) {
- for (grid_cycle=0; grid_cycle<38; grid_cycle++) {
- bit = grid_cycle * 256 * 4 +
- (253 - grid_cycle) * 4 +
- frame_buf_offs + display;
- /* wrap arround if offset (see manual S3C2400) */
- if (bit>=FRAME_BUF_SIZE*8)
- bit = bit - (FRAME_BUF_SIZE * 8);
- adr = gd->fb_base + (bit/32) * 4 + (3 - (bit%32) / 8);
- bit_nr = bit % 8;
- bit_nr = (bit_nr > 3) ? bit_nr-4 : bit_nr+4;
- temp=(*(volatile unsigned char*)(adr));
- temp |= (1<<bit_nr);
- (*(volatile unsigned char*)(adr))=temp;
-
- if(grid_cycle<37)
- bit = grid_cycle*256*4+(252-grid_cycle)*4+frame_buf_offs+display;
-
- /* wrap arround if offset (see manual S3C2400) */
- if (bit>=FRAME_BUF_SIZE*8)
- bit = bit-(FRAME_BUF_SIZE*8);
- adr = gd->fb_base+(bit/32)*4+(3-(bit%32)/8);
- bit_nr = bit%8;
- bit_nr = (bit_nr>3)?bit_nr-4:bit_nr+4;
- temp=(*(volatile unsigned char*)(adr));
- temp |= (1<<bit_nr);
- (*(volatile unsigned char*)(adr))=temp;
- }
- }
- break;
- default:
- printf ("Warning: unknown display type\n");
- break;
- }
-}
-
-/*
- *create translation table for getting easy the right position in the
- *physical framebuffer for some x/y-coordinates of the VFDs
- */
-void create_vfd_table(void)
-{
- unsigned long vfd_table[112][18][2][4][2];
- unsigned int x, y, color, display, entry, pixel;
- unsigned int x_abcdef = 0;
-
- switch (gd->vfd_type) {
- case VFD_TYPE_T119C:
- for(y=0; y<=17; y++) { /* Line */
- for(x=0; x<=111; x++) { /* Column */
- for(display=0; display <=3; display++) {
-
- /* Display 0 blue pixels */
- vfd_table[x][y][0][display][0] =
- (x==0) ? y*16+display
- : (x%4)*4+y*16+((x-1)/2)*1024+display;
- /* Display 0 red pixels */
- vfd_table[x][y][1][display][0] =
- (x==0) ? y*16+512+display
- : (x%4)*4+y*16+((x-1)/2)*1024+512+display;
- }
- }
- }
- break;
- case VFD_TYPE_MN11236:
- for(y=0; y<=17; y++) { /* Line */
- for(x=0; x<=111; x++) { /* Column */
- for(display=0; display <=3; display++) {
-
- vfd_table[x][y][0][display][0]=0;
- vfd_table[x][y][0][display][1]=0;
- vfd_table[x][y][1][display][0]=0;
- vfd_table[x][y][1][display][1]=0;
-
- switch (x%6) {
- case 0: x_abcdef=0; break; /* a -> a */
- case 1: x_abcdef=2; break; /* b -> c */
- case 2: x_abcdef=4; break; /* c -> e */
- case 3: x_abcdef=5; break; /* d -> f */
- case 4: x_abcdef=3; break; /* e -> d */
- case 5: x_abcdef=1; break; /* f -> b */
- }
-
- /* blue pixels */
- vfd_table[x][y][0][display][0] =
- (x>1) ? x_abcdef*4+((x-1)/3)*1024+y*48+display
- : x_abcdef*4+ 0+y*48+display;
- /* blue pixels */
- if (x>1 && (x-1)%3)
- vfd_table[x][y][0][display][1] = x_abcdef*4+((x-1)/3+1)*1024+y*48+display;
-
- /* red pixels */
- vfd_table[x][y][1][display][0] =
- (x>1) ? x_abcdef*4+24+((x-1)/3)*1024+y*48+display
- : x_abcdef*4+24+ 0+y*48+display;
- /* red pixels */
- if (x>1 && (x-1)%3)
- vfd_table[x][y][1][display][1] = x_abcdef*4+24+((x-1)/3+1)*1024+y*48+display;
- }
- }
- }
- break;
- default:
- /* do nothing */
- return;
- }
-
- /*
- * Create table with entries for physical byte adresses and
- * bit-number within the byte
- * from table with bit-numbers within the total framebuffer
- */
- for(y=0;y<18;y++) {
- for(x=0;x<112;x++) {
- for(color=0;color<2;color++) {
- for(display=0;display<4;display++) {
- for(entry=0;entry<2;entry++) {
- unsigned long adr = gd->fb_base;
- unsigned int bit_nr = 0;
-
- pixel = vfd_table[x][y][color][display][entry] + frame_buf_offs;
- /*
- * wrap arround if offset
- * (see manual S3C2400)
- */
- if (pixel>=FRAME_BUF_SIZE*8)
- pixel = pixel-(FRAME_BUF_SIZE*8);
- adr = gd->fb_base+(pixel/32)*4+(3-(pixel%32)/8);
- bit_nr = pixel%8;
- bit_nr = (bit_nr>3)?bit_nr-4:bit_nr+4;
-
- adr_vfd_table[x][y][color][display][entry] = adr;
- bit_vfd_table[x][y][color][display][entry] = bit_nr;
- }
- }
- }
- }
- }
-}
-
-/*
- * Set/clear pixel of the VFDs
- */
-void set_vfd_pixel(unsigned char x, unsigned char y,
- unsigned char color, unsigned char display,
- unsigned char value)
-{
- ulong adr;
- unsigned char bit_nr, temp;
-
- if (! gd->vfd_type) {
- /* Unknown type. */
- return;
- }
-
- /* Pixel-Eintrag Nr. 1 */
- adr = adr_vfd_table[x][y][color][display][0];
- /* Pixel-Eintrag Nr. 1 */
- bit_nr = bit_vfd_table[x][y][color][display][0];
- temp=(*(volatile unsigned char*)(adr));
-
- if (value)
- temp |= (1<<bit_nr);
- else
- temp &= ~(1<<bit_nr);
-
- (*(volatile unsigned char*)(adr))=temp;
-}
-
-/*
- * transfer image from BMP-File
- */
-void transfer_pic(int display, unsigned char *adr, int height, int width)
-{
- int x, y;
- unsigned char temp;
-
- for (; height > 0; height -= 18)
- {
- if (height > 18)
- y = 18;
- else
- y = height;
- for (; y > 0; y--)
- {
- for (x = 0; x < width; x += 2)
- {
- temp = *adr++;
- set_vfd_pixel(x, y-1, 0, display, 0);
- set_vfd_pixel(x, y-1, 1, display, 0);
- if ((temp >> 4) == BLAU)
- set_vfd_pixel(x, y-1, 0, display, 1);
- else if ((temp >> 4) == ROT)
- set_vfd_pixel(x, y-1, 1, display, 1);
- else if ((temp >> 4) == VIOLETT)
- {
- set_vfd_pixel(x, y-1, 0, display, 1);
- set_vfd_pixel(x, y-1, 1, display, 1);
- }
- set_vfd_pixel(x+1, y-1, 0, display, 0);
- set_vfd_pixel(x+1, y-1, 1, display, 0);
- if ((temp & 0x0F) == BLAU)
- set_vfd_pixel(x+1, y-1, 0, display, 1);
- else if ((temp & 0x0F) == ROT)
- set_vfd_pixel(x+1, y-1, 1, display, 1);
- else if ((temp & 0x0F) == VIOLETT)
- {
- set_vfd_pixel(x+1, y-1, 0, display, 1);
- set_vfd_pixel(x+1, y-1, 1, display, 1);
- }
- }
- }
- if (display > 0)
- display--;
- else
- display = 3;
- }
-}
-
-/*
- * This function initializes VFD clock that is needed for the CPLD that
- * manages the keyboard.
- */
-int vfd_init_clocks (void)
-{
- int i;
-
- struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
- struct s3c24x0_timers * const timers = s3c24x0_get_base_timers();
- struct s3c24x0_lcd * const lcd = s3c24x0_get_base_lcd();
-
- /* try to determine display type from the value
- * defined by pull-ups
- */
- gpio->pcup = (gpio->pcup & 0xFFF0); /* activate GPC0...GPC3 pullups */
- gpio->pccon = (gpio->pccon & 0xFFFFFF00); /* cfg GPC0...GPC3 inputs */
- /* allow signals to settle */
- for (i=0; i<10000; i++) /* udelay isn't working yet at this point! */
- __asm__("NOP");
- vfd_board_id = (~gpio->pcdat) & 0x000F; /* read GPC0...GPC3 port pins */
-
- VFD_DISABLE; /* activate blank for the vfd */
-
-#define NEW_CPLD_CLK
-
-#ifdef NEW_CPLD_CLK
- if (vfd_board_id) {
- /* If new board revision, then use PWM 3 as cpld-clock */
- /* Enable 500 Hz timer for fill level sensor to operate properly */
- /* Configure TOUT3 as functional pin, disable pull-up */
- gpio->pdcon &= ~0x30000;
- gpio->pdcon |= 0x20000;
- gpio->pdup |= (1 << 8);
-
- /* Configure the prescaler */
- timers->tcfg0 &= ~0xff00;
- timers->tcfg0 |= 0x0f00;
-
- /* Select MUX input (divider) for timer3 (1/16) */
- timers->tcfg1 &= ~0xf000;
- timers->tcfg1 |= 0x3000;
-
- /* Enable autoreload and set the counter and compare
- * registers to values for the 500 Hz clock
- * (for a given prescaler (15) and divider (16)):
- * counter = (66000000 / 500) >> 9;
- */
- timers->ch[3].tcntb = 0x101;
- timers->ch[3].tcmpb = 0x101 / 2;
-
- /* Start timer */
- timers->tcon = (timers->tcon | UPDATE3 | RELOAD3) & ~INVERT3;
- timers->tcon = (timers->tcon | START3) & ~UPDATE3;
- }
-#endif
- /* If old board revision, then use vm-signal as cpld-clock */
- lcd->lcdcon2 = 0x00FFC000;
- lcd->lcdcon3 = 0x0007FF00;
- lcd->lcdcon4 = 0x00000000;
- lcd->lcdcon5 = 0x00000400;
- lcd->lcdcon1 = 0x00000B75;
- /* VM (GPD1) is used as clock for the CPLD */
- gpio->pdcon = (gpio->pdcon & 0xFFFFFFF3) | 0x00000008;
-
- return 0;
-}
-
-/*
- * initialize LCD-Controller of the S3C2400 for using VFDs
- *
- * VFD detection depends on the board revision:
- * starting from Rev. 200 a type code can be read from the data pins,
- * driven by some pull-up resistors; all earlier systems must be
- * manually configured. The type is set in the "vfd_type" environment
- * variable.
- */
-int drv_vfd_init(void)
-{
- struct s3c24x0_lcd * const lcd = s3c24x0_get_base_lcd();
- struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
- char *tmp;
- ulong palette;
- static int vfd_init_done = 0;
- int vfd_inv_data = 0;
-
- if (vfd_init_done != 0)
- return (0);
- vfd_init_done = 1;
-
- debug("Detecting Revison of WA4-VFD: ID=0x%X\n", vfd_board_id);
-
- switch (vfd_board_id) {
- case 0: /* board revision < Rev.200 */
- if ((tmp = getenv ("vfd_type")) == NULL) {
- break;
- }
- if (strcmp(tmp, "T119C") == 0) {
- gd->vfd_type = VFD_TYPE_T119C;
- } else if (strcmp(tmp, "MN11236") == 0) {
- gd->vfd_type = VFD_TYPE_MN11236;
- } else {
- /* cannot use printf for a warning here */
- gd->vfd_type = 0; /* unknown */
- }
-
- break;
- default: /* default to MN11236, data inverted */
- gd->vfd_type = VFD_TYPE_MN11236;
- vfd_inv_data = 1;
- setenv ("vfd_type", "MN11236");
- }
- debug ("VFD type: %s%s\n",
- (gd->vfd_type == VFD_TYPE_T119C) ? "T119C" :
- (gd->vfd_type == VFD_TYPE_MN11236) ? "MN11236" :
- "unknown",
- vfd_inv_data ? ", inverted data" : "");
-
- gd->fb_base = gd->fb_base;
- create_vfd_table();
- init_grid_ctrl();
-
- for (palette=0; palette < 16; palette++)
- (*(volatile unsigned int*)(PALETTE+(palette*4)))=palette;
- for (palette=16; palette < 256; palette++)
- (*(volatile unsigned int*)(PALETTE+(palette*4)))=0x00;
-
- /*
- * Hinweis: Der Framebuffer ist um genau ein Nibble verschoben
- * Das erste angezeigte Pixel wird aus dem zweiten Nibble geholt
- * das letzte angezeigte Pixel wird aus dem ersten Nibble geholt
- * (wrap around)
- * see manual S3C2400
- */
- /* Stopp LCD-Controller */
- lcd->lcdcon1 = 0x00000000;
- /* frame buffer startadr */
- lcd->lcdsaddr1 = gd->fb_base >> 1;
- /* frame buffer endadr */
- lcd->lcdsaddr2 = (gd->fb_base + FRAME_BUF_SIZE) >> 1;
- lcd->lcdsaddr3 = ((256/4));
- lcd->lcdcon2 = 0x000DC000;
- if(gd->vfd_type == VFD_TYPE_MN11236)
- lcd->lcdcon2 = 37 << 14; /* MN11236: 38 lines */
- else
- lcd->lcdcon2 = 55 << 14; /* T119C: 56 lines */
- lcd->lcdcon3 = 0x0051000A;
- lcd->lcdcon4 = 0x00000001;
- if (gd->vfd_type && vfd_inv_data)
- lcd->lcdcon5 = 0x000004C0;
- else
- lcd->lcdcon5 = 0x00000440;
-
- /* Port pins as LCD output */
- gpio->pccon = (gpio->pccon & 0xFFFFFF00) | 0x000000AA;
- gpio->pdcon = (gpio->pdcon & 0xFFFFFF03) | 0x000000A8;
-
- /* Synchronize VFD enable with LCD controller to avoid flicker */
- lcd->lcdcon1 = 0x00000B75; /* Start LCD-Controller */
- while ((lcd->lcdcon5 & 0x180000) != 0x100000) /* Wait for VSYNC end */
- ;
- while ((lcd->lcdcon5 & 0x060000) != 0x040000) /* Wait for next HSYNC */
- ;
- while ((lcd->lcdcon5 & 0x060000) == 0x040000)
- ;
- while ((lcd->lcdcon5 & 0x060000) != 0x000000)
- ;
- if(gd->vfd_type)
- VFD_ENABLE;
-
- debug("LCDSADDR1: %lX\n", lcd->lcdsaddr1);
- debug("LCDSADDR2: %lX\n", lcd->lcdsaddr2);
- debug("LCDSADDR3: %lX\n", lcd->lcdsaddr3);
-
- return 0;
-}
-
-/*
- * Disable VFD: should be run before resetting the system:
- * disable VM, enable pull-up
- */
-void disable_vfd (void)
-{
- struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
-
- VFD_DISABLE;
- gpio->pdcon &= ~0xC;
- gpio->pdup &= ~0x2;
-}
-
-/************************************************************************/
-/* ** ROM capable initialization part - needed to reserve FB memory */
-/************************************************************************/
-
-/*
- * This is called early in the system initialization to grab memory
- * for the VFD controller.
- *
- * Note that this is running from ROM, so no write access to global data.
- */
-ulong vfd_setmem (ulong addr)
-{
- ulong size;
-
- /* Round up to nearest full page */
- size = (FRAME_BUF_SIZE + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
-
- debug ("Reserving %ldk for VFD Framebuffer at: %08lx\n", size>>10, addr);
-
- return (size);
-}
-
-/*
- * Calculate fb size for VIDEOLFB_ATAG. Size returned contains fb,
- * descriptors and palette areas.
- */
-ulong calc_fbsize (void)
-{
- return FRAME_BUF_SIZE;
-}
-
-#endif /* CONFIG_VFD */
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