diff options
Diffstat (limited to 'qemu/roms/u-boot/arch/powerpc/cpu/mpc8xx/video.c')
| -rw-r--r-- | qemu/roms/u-boot/arch/powerpc/cpu/mpc8xx/video.c | 1318 |
1 files changed, 1318 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/arch/powerpc/cpu/mpc8xx/video.c b/qemu/roms/u-boot/arch/powerpc/cpu/mpc8xx/video.c new file mode 100644 index 000000000..fc351585b --- /dev/null +++ b/qemu/roms/u-boot/arch/powerpc/cpu/mpc8xx/video.c @@ -0,0 +1,1318 @@ +/* + * (C) Copyright 2000 + * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it + * (C) Copyright 2002 + * Wolfgang Denk, wd@denx.de + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* #define DEBUG */ + +/************************************************************************/ +/* ** HEADER FILES */ +/************************************************************************/ + +#include <stdarg.h> +#include <common.h> +#include <config.h> +#include <version.h> +#include <i2c.h> +#include <linux/types.h> +#include <stdio_dev.h> + +#ifdef CONFIG_VIDEO + +DECLARE_GLOBAL_DATA_PTR; + +/************************************************************************/ +/* ** DEBUG SETTINGS */ +/************************************************************************/ + +#if 0 +#define VIDEO_DEBUG_COLORBARS /* Force colorbars output */ +#endif + +/************************************************************************/ +/* ** VIDEO MODE SETTINGS */ +/************************************************************************/ + +#if 0 +#define VIDEO_MODE_EXTENDED /* Allow screen size bigger than visible area */ +#define VIDEO_MODE_NTSC +#endif + +#define VIDEO_MODE_PAL + +#if 0 +#define VIDEO_BLINK /* This enables cursor blinking (under construction) */ +#endif + +#define VIDEO_INFO /* Show U-Boot information */ +#define VIDEO_INFO_X VIDEO_LOGO_WIDTH+8 +#define VIDEO_INFO_Y 16 + +/************************************************************************/ +/* ** VIDEO ENCODER CONSTANTS */ +/************************************************************************/ + +#ifdef CONFIG_VIDEO_ENCODER_AD7176 + +#include <video_ad7176.h> /* Sets encoder data, mode, and visible and active area */ + +#define VIDEO_I2C 1 +#define VIDEO_I2C_ADDR CONFIG_VIDEO_ENCODER_AD7176_ADDR +#endif + +#ifdef CONFIG_VIDEO_ENCODER_AD7177 + +#include <video_ad7177.h> /* Sets encoder data, mode, and visible and active area */ + +#define VIDEO_I2C 1 +#define VIDEO_I2C_ADDR CONFIG_VIDEO_ENCODER_AD7177_ADDR +#endif + +#ifdef CONFIG_VIDEO_ENCODER_AD7179 + +#include <video_ad7179.h> /* Sets encoder data, mode, and visible and active area */ + +#define VIDEO_I2C 1 +#define VIDEO_I2C_ADDR CONFIG_VIDEO_ENCODER_AD7179_ADDR +#endif + +/************************************************************************/ +/* ** VIDEO MODE CONSTANTS */ +/************************************************************************/ + +#ifdef VIDEO_MODE_EXTENDED +#define VIDEO_COLS VIDEO_ACTIVE_COLS +#define VIDEO_ROWS VIDEO_ACTIVE_ROWS +#else +#define VIDEO_COLS VIDEO_VISIBLE_COLS +#define VIDEO_ROWS VIDEO_VISIBLE_ROWS +#endif + +#define VIDEO_PIXEL_SIZE (VIDEO_MODE_BPP/8) +#define VIDEO_SIZE (VIDEO_ROWS*VIDEO_COLS*VIDEO_PIXEL_SIZE) /* Total size of buffer */ +#define VIDEO_PIX_BLOCKS (VIDEO_SIZE >> 2) /* Number of ints */ +#define VIDEO_LINE_LEN (VIDEO_COLS*VIDEO_PIXEL_SIZE) /* Number of bytes per line */ +#define VIDEO_BURST_LEN (VIDEO_COLS/8) + +#ifdef VIDEO_MODE_YUYV +#define VIDEO_BG_COL 0x80D880D8 /* Background color in YUYV format */ +#else +#define VIDEO_BG_COL 0xF8F8F8F8 /* Background color in RGB format */ +#endif + +/************************************************************************/ +/* ** FONT AND LOGO DATA */ +/************************************************************************/ + +#include <video_font.h> /* Get font data, width and height */ + +#ifdef CONFIG_VIDEO_LOGO +#include <video_logo.h> /* Get logo data, width and height */ + +#define VIDEO_LOGO_WIDTH DEF_U_BOOT_LOGO_WIDTH +#define VIDEO_LOGO_HEIGHT DEF_U_BOOT_LOGO_HEIGHT +#define VIDEO_LOGO_ADDR &u_boot_logo +#endif + +/************************************************************************/ +/* ** VIDEO CONTROLLER CONSTANTS */ +/************************************************************************/ + +/* VCCR - VIDEO CONTROLLER CONFIGURATION REGISTER */ + +#define VIDEO_VCCR_VON 0 /* Video controller ON */ +#define VIDEO_VCCR_CSRC 1 /* Clock source */ +#define VIDEO_VCCR_PDF 13 /* Pixel display format */ +#define VIDEO_VCCR_IEN 11 /* Interrupt enable */ + +/* VSR - VIDEO STATUS REGISTER */ + +#define VIDEO_VSR_CAS 6 /* Active set */ +#define VIDEO_VSR_EOF 0 /* End of frame */ + +/* VCMR - VIDEO COMMAND REGISTER */ + +#define VIDEO_VCMR_BD 0 /* Blank display */ +#define VIDEO_VCMR_ASEL 1 /* Active set selection */ + +/* VBCB - VIDEO BACKGROUND COLOR BUFFER REGISTER */ + +#define VIDEO_BCSR4_RESET_BIT 21 /* BCSR4 - Extern video encoder reset */ +#define VIDEO_BCSR4_EXTCLK_BIT 22 /* BCSR4 - Extern clock enable */ +#define VIDEO_BCSR4_VIDLED_BIT 23 /* BCSR4 - Video led disable */ + +/************************************************************************/ +/* ** CONSOLE CONSTANTS */ +/************************************************************************/ + +#ifdef CONFIG_VIDEO_LOGO +#define CONSOLE_ROWS ((VIDEO_ROWS - VIDEO_LOGO_HEIGHT) / VIDEO_FONT_HEIGHT) +#define VIDEO_LOGO_SKIP (VIDEO_COLS - VIDEO_LOGO_WIDTH) +#else +#define CONSOLE_ROWS (VIDEO_ROWS / VIDEO_FONT_HEIGHT) +#endif + +#define CONSOLE_COLS (VIDEO_COLS / VIDEO_FONT_WIDTH) +#define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * VIDEO_LINE_LEN) +#define CONSOLE_ROW_FIRST (video_console_address) +#define CONSOLE_ROW_SECOND (video_console_address + CONSOLE_ROW_SIZE) +#define CONSOLE_ROW_LAST (video_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE) +#define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS) +#define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE) + +/* + * Simple color definitions + */ +#define CONSOLE_COLOR_BLACK 0 +#define CONSOLE_COLOR_RED 1 +#define CONSOLE_COLOR_GREEN 2 +#define CONSOLE_COLOR_YELLOW 3 +#define CONSOLE_COLOR_BLUE 4 +#define CONSOLE_COLOR_MAGENTA 5 +#define CONSOLE_COLOR_CYAN 6 +#define CONSOLE_COLOR_GREY 13 +#define CONSOLE_COLOR_GREY2 14 +#define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */ + +/************************************************************************/ +/* ** BITOPS MACROS */ +/************************************************************************/ + +#define HISHORT(i) ((i >> 16)&0xffff) +#define LOSHORT(i) (i & 0xffff) +#define HICHAR(s) ((i >> 8)&0xff) +#define LOCHAR(s) (i & 0xff) +#define HI(c) ((c >> 4)&0xf) +#define LO(c) (c & 0xf) +#define SWAPINT(i) (HISHORT(i) | (LOSHORT(i) << 16)) +#define SWAPSHORT(s) (HICHAR(s) | (LOCHAR(s) << 8)) +#define SWAPCHAR(c) (HI(c) | (LO(c) << 4)) +#define BITMASK(b) (1 << (b)) +#define GETBIT(v,b) (((v) & BITMASK(b)) > 0) +#define SETBIT(v,b,d) (v = (((d)>0) ? (v) | BITMASK(b): (v) & ~BITMASK(b))) + +/************************************************************************/ +/* ** STRUCTURES */ +/************************************************************************/ + +typedef struct { + unsigned char V, Y1, U, Y2; +} tYUYV; + +/* This structure is based on the Video Ram in the MPC823. */ +typedef struct VRAM { + unsigned hx:2, /* Horizontal sync */ + vx:2, /* Vertical sync */ + fx:2, /* Frame */ + bx:2, /* Blank */ + res1:6, /* Reserved */ + vds:2, /* Video Data Select */ + inter:1, /* Interrupt */ + res2:2, /* Reserved */ + lcyc:11, /* Loop/video cycles */ + lp:1, /* Loop start/end */ + lst:1; /* Last entry */ +} VRAM; + +/************************************************************************/ +/* ** VARIABLES */ +/************************************************************************/ + +static int + video_panning_range_x = 0, /* Video mode invisible pixels x range */ + video_panning_range_y = 0, /* Video mode invisible pixels y range */ + video_panning_value_x = 0, /* Video mode x panning value (absolute) */ + video_panning_value_y = 0, /* Video mode y panning value (absolute) */ + video_panning_factor_x = 0, /* Video mode x panning value (-127 +127) */ + video_panning_factor_y = 0, /* Video mode y panning value (-127 +127) */ + console_col = 0, /* Cursor col */ + console_row = 0, /* Cursor row */ + video_palette[16]; /* Our palette */ + +static const int video_font_draw_table[] = + { 0x00000000, 0x0000ffff, 0xffff0000, 0xffffffff }; + +static char + video_color_fg = 0, /* Current fg color index (0-15) */ + video_color_bg = 0, /* Current bg color index (0-15) */ + video_enable = 0; /* Video has been initialized? */ + +static void + *video_fb_address, /* Frame buffer address */ + *video_console_address; /* Console frame buffer start address */ + +/************************************************************************/ +/* ** MEMORY FUNCTIONS (32bit) */ +/************************************************************************/ + +static void memsetl (int *p, int c, int v) +{ + while (c--) + *(p++) = v; +} + +static void memcpyl (int *d, int *s, int c) +{ + while (c--) + *(d++) = *(s++); +} + +/************************************************************************/ +/* ** VIDEO DRAWING AND COLOR FUNCTIONS */ +/************************************************************************/ + +static int video_maprgb (int r, int g, int b) +{ +#ifdef VIDEO_MODE_YUYV + unsigned int pR, pG, pB; + tYUYV YUYV; + unsigned int *ret = (unsigned int *) &YUYV; + + /* Transform (0-255) components to (0-100) */ + + pR = r * 100 / 255; + pG = g * 100 / 255; + pB = b * 100 / 255; + + /* Calculate YUV values (0-255) from RGB beetween 0-100 */ + + YUYV.Y1 = YUYV.Y2 = 209 * (pR + pG + pB) / 300 + 16; + YUYV.U = pR - (pG * 3 / 4) - (pB / 4) + 128; + YUYV.V = pB - (pR / 4) - (pG * 3 / 4) + 128; + return *ret; +#endif +#ifdef VIDEO_MODE_RGB + return ((r >> 3) << 11) | ((g > 2) << 6) | (b >> 3); +#endif +} + +static void video_setpalette (int color, int r, int g, int b) +{ + color &= 0xf; + + video_palette[color] = video_maprgb (r, g, b); + + /* Swap values if our panning offset is odd */ + if (video_panning_value_x & 1) + video_palette[color] = SWAPINT (video_palette[color]); +} + +static void video_fill (int color) +{ + memsetl (video_fb_address, VIDEO_PIX_BLOCKS, color); +} + +static void video_setfgcolor (int i) +{ + video_color_fg = i & 0xf; +} + +static void video_setbgcolor (int i) +{ + video_color_bg = i & 0xf; +} + +static int video_pickcolor (int i) +{ + return video_palette[i & 0xf]; +} + +/* Absolute console plotting functions */ + +#ifdef VIDEO_BLINK +static void video_revchar (int xx, int yy) +{ + int rows; + u8 *dest; + + dest = video_fb_address + yy * VIDEO_LINE_LEN + xx * 2; + + for (rows = VIDEO_FONT_HEIGHT; rows--; dest += VIDEO_LINE_LEN) { + switch (VIDEO_FONT_WIDTH) { + case 16: + ((u32 *) dest)[6] ^= 0xffffffff; + ((u32 *) dest)[7] ^= 0xffffffff; + /* FALL THROUGH */ + case 12: + ((u32 *) dest)[4] ^= 0xffffffff; + ((u32 *) dest)[5] ^= 0xffffffff; + /* FALL THROUGH */ + case 8: + ((u32 *) dest)[2] ^= 0xffffffff; + ((u32 *) dest)[3] ^= 0xffffffff; + /* FALL THROUGH */ + case 4: + ((u32 *) dest)[0] ^= 0xffffffff; + ((u32 *) dest)[1] ^= 0xffffffff; + } + } +} +#endif + +static void video_drawchars (int xx, int yy, unsigned char *s, int count) +{ + u8 *cdat, *dest, *dest0; + int rows, offset, c; + u32 eorx, fgx, bgx; + + offset = yy * VIDEO_LINE_LEN + xx * 2; + dest0 = video_fb_address + offset; + + fgx = video_pickcolor (video_color_fg); + bgx = video_pickcolor (video_color_bg); + + if (xx & 1) { + fgx = SWAPINT (fgx); + bgx = SWAPINT (bgx); + } + + eorx = fgx ^ bgx; + + switch (VIDEO_FONT_WIDTH) { + case 4: + case 8: + while (count--) { + c = *s; + cdat = video_fontdata + c * VIDEO_FONT_HEIGHT; + for (rows = VIDEO_FONT_HEIGHT, dest = dest0; + rows--; + dest += VIDEO_LINE_LEN) { + u8 bits = *cdat++; + + ((u32 *) dest)[0] = + (video_font_draw_table[bits >> 6] & eorx) ^ bgx; + ((u32 *) dest)[1] = + (video_font_draw_table[bits >> 4 & 3] & eorx) ^ bgx; + if (VIDEO_FONT_WIDTH == 8) { + ((u32 *) dest)[2] = + (video_font_draw_table[bits >> 2 & 3] & eorx) ^ bgx; + ((u32 *) dest)[3] = + (video_font_draw_table[bits & 3] & eorx) ^ bgx; + } + } + dest0 += VIDEO_FONT_WIDTH * 2; + s++; + } + break; + case 12: + case 16: + while (count--) { + cdat = video_fontdata + (*s) * (VIDEO_FONT_HEIGHT << 1); + for (rows = VIDEO_FONT_HEIGHT, dest = dest0; rows--; + dest += VIDEO_LINE_LEN) { + u8 bits = *cdat++; + + ((u32 *) dest)[0] = + (video_font_draw_table[bits >> 6] & eorx) ^ bgx; + ((u32 *) dest)[1] = + (video_font_draw_table[bits >> 4 & 3] & eorx) ^ bgx; + ((u32 *) dest)[2] = + (video_font_draw_table[bits >> 2 & 3] & eorx) ^ bgx; + ((u32 *) dest)[3] = + (video_font_draw_table[bits & 3] & eorx) ^ bgx; + bits = *cdat++; + ((u32 *) dest)[4] = + (video_font_draw_table[bits >> 6] & eorx) ^ bgx; + ((u32 *) dest)[5] = + (video_font_draw_table[bits >> 4 & 3] & eorx) ^ bgx; + if (VIDEO_FONT_WIDTH == 16) { + ((u32 *) dest)[6] = + (video_font_draw_table[bits >> 2 & 3] & eorx) ^ bgx; + ((u32 *) dest)[7] = + (video_font_draw_table[bits & 3] & eorx) ^ bgx; + } + } + s++; + dest0 += VIDEO_FONT_WIDTH * 2; + } + break; + } +} + +static inline void video_drawstring (int xx, int yy, char *s) +{ + video_drawchars (xx, yy, (unsigned char *)s, strlen (s)); +} + +/* Relative to console plotting functions */ + +static void video_putchars (int xx, int yy, unsigned char *s, int count) +{ +#ifdef CONFIG_VIDEO_LOGO + video_drawchars (xx, yy + VIDEO_LOGO_HEIGHT, s, count); +#else + video_drawchars (xx, yy, s, count); +#endif +} + +static void video_putchar (int xx, int yy, unsigned char c) +{ +#ifdef CONFIG_VIDEO_LOGO + video_drawchars (xx, yy + VIDEO_LOGO_HEIGHT, &c, 1); +#else + video_drawchars (xx, yy, &c, 1); +#endif +} + +static inline void video_putstring (int xx, int yy, unsigned char *s) +{ + video_putchars (xx, yy, (unsigned char *)s, strlen ((char *)s)); +} + +/************************************************************************/ +/* ** VIDEO CONTROLLER LOW-LEVEL FUNCTIONS */ +/************************************************************************/ + +#if !defined(CONFIG_RRVISION) +static void video_mode_dupefield (VRAM * source, VRAM * dest, int entries) +{ + int i; + + for (i = 0; i < entries; i++) { + dest[i] = source[i]; /* Copy the entire record */ + dest[i].fx = (!dest[i].fx) * 3; /* Negate field bit */ + } + + dest[0].lcyc++; /* Add a cycle to the first entry */ + dest[entries - 1].lst = 1; /* Set end of ram entries */ +} +#endif + +static void inline video_mode_addentry (VRAM * vr, + int Hx, int Vx, int Fx, int Bx, + int VDS, int INT, int LCYC, int LP, int LST) +{ + vr->hx = Hx; + vr->vx = Vx; + vr->fx = Fx; + vr->bx = Bx; + vr->vds = VDS; + vr->inter = INT; + vr->lcyc = LCYC; + vr->lp = LP; + vr->lst = LST; +} + +#define ADDENTRY(a,b,c,d,e,f,g,h,i) video_mode_addentry(&vr[entry++],a,b,c,d,e,f,g,h,i) + +static int video_mode_generate (void) +{ + immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + VRAM *vr = (VRAM *) (((void *) immap) + 0xb00); /* Pointer to the VRAM table */ + int DX, X1, X2, DY, Y1, Y2, entry = 0, fifo; + + /* CHECKING PARAMETERS */ + + if (video_panning_factor_y < -128) + video_panning_factor_y = -128; + + if (video_panning_factor_y > 128) + video_panning_factor_y = 128; + + if (video_panning_factor_x < -128) + video_panning_factor_x = -128; + + if (video_panning_factor_x > 128) + video_panning_factor_x = 128; + + /* Setting panning */ + + DX = video_panning_range_x = (VIDEO_ACTIVE_COLS - VIDEO_COLS) * 2; + DY = video_panning_range_y = (VIDEO_ACTIVE_ROWS - VIDEO_ROWS) / 2; + + video_panning_value_x = (video_panning_factor_x + 128) * DX / 256; + video_panning_value_y = (video_panning_factor_y + 128) * DY / 256; + + /* We assume these are burst units (multiplied by 2, we need it pari) */ + X1 = video_panning_value_x & 0xfffe; + X2 = DX - X1; + + /* We assume these are field line units (divided by 2, we need it pari) */ + Y1 = video_panning_value_y & 0xfffe; + Y2 = DY - Y1; + + debug("X1=%d, X2=%d, Y1=%d, Y2=%d, DX=%d, DY=%d VIDEO_COLS=%d \n", + X1, X2, Y1, Y2, DX, DY, VIDEO_COLS); + +#ifdef VIDEO_MODE_NTSC +/* + * Hx Vx Fx Bx VDS INT LCYC LP LST + * + * Retrace blanking + */ + ADDENTRY (0, 0, 3, 0, 1, 0, 3, 1, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 243, 0, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 1440, 0, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 32, 1, 0); +/* + * Vertical blanking + */ + ADDENTRY (0, 0, 0, 0, 1, 0, 18, 1, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 243, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 1440, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 32, 1, 0); +/* + * Odd field active area (TOP) + */ + if (Y1 > 0) { + ADDENTRY (0, 0, 0, 0, 1, 0, Y1, 1, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 235, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, 1448, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 32, 1, 0); + } +/* + * Odd field active area + */ + ADDENTRY (0, 0, 0, 0, 1, 0, 240 - DY, 1, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 235, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, 8 + X1, 0, 0); + ADDENTRY (3, 0, 0, 3, 0, 0, VIDEO_COLS * 2, 0, 0); + + if (X2 > 0) + ADDENTRY (3, 0, 0, 3, 1, 0, X2, 0, 0); + + ADDENTRY (3, 0, 0, 0, 1, 0, 32, 1, 0); + +/* + * Odd field active area (BOTTOM) + */ + if (Y1 > 0) { + ADDENTRY (0, 0, 0, 0, 1, 0, Y2, 1, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 235, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, 1448, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 32, 1, 0); + } +/* + * Vertical blanking + */ + ADDENTRY (0, 0, 0, 0, 1, 0, 4, 1, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 243, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 1440, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 32, 1, 0); +/* + * Vertical blanking + */ + ADDENTRY (0, 0, 3, 0, 1, 0, 19, 1, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 243, 0, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 1440, 0, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 32, 1, 0); +/* + * Even field active area (TOP) + */ + if (Y1 > 0) { + ADDENTRY (0, 0, 3, 0, 1, 0, Y1, 1, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 235, 0, 0); + ADDENTRY (3, 0, 3, 3, 1, 0, 1448, 0, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 32, 1, 0); + } +/* + * Even field active area (CENTER) + */ + ADDENTRY (0, 0, 3, 0, 1, 0, 240 - DY, 1, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 235, 0, 0); + ADDENTRY (3, 0, 3, 3, 1, 0, 8 + X1, 0, 0); + ADDENTRY (3, 0, 3, 3, 0, 0, VIDEO_COLS * 2, 0, 0); + + if (X2 > 0) + ADDENTRY (3, 0, 3, 3, 1, 0, X2, 0, 0); + + ADDENTRY (3, 0, 3, 0, 1, 0, 32, 1, 0); +/* + * Even field active area (BOTTOM) + */ + if (Y1 > 0) { + ADDENTRY (0, 0, 3, 0, 1, 0, Y2, 1, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 235, 0, 0); + ADDENTRY (3, 0, 3, 3, 1, 0, 1448, 0, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 32, 1, 0); + } +/* + * Vertical blanking + */ + ADDENTRY (0, 0, 3, 0, 1, 0, 1, 1, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 243, 0, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 1440, 0, 0); + ADDENTRY (3, 0, 3, 0, 1, 1, 32, 1, 1); +#endif + +#ifdef VIDEO_MODE_PAL + +#if defined(CONFIG_RRVISION) + +#define HPW 160 /* horizontal pulse width (was 139) */ +#define VPW 2 /* vertical pulse width */ +#define HBP 104 /* horizontal back porch (was 112) */ +#define VBP 19 /* vertical back porch (was 19) */ +#define VID_R 240 /* number of rows */ + + debug ("[VIDEO CTRL] Starting to add controller entries..."); +/* + * Even field + */ + ADDENTRY (0, 3, 0, 3, 1, 0, 2, 0, 0); + ADDENTRY (0, 0, 0, 3, 1, 0, HPW, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, HBP + (VIDEO_COLS * 2) + 72, 0, 0); + + ADDENTRY (0, 0, 0, 3, 1, 0, VPW, 1, 0); + ADDENTRY (0, 0, 0, 3, 1, 0, HPW-1, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, HBP + (VIDEO_COLS * 2) + 72, 1, 0); + + ADDENTRY (0, 3, 0, 3, 1, 0, VBP, 1, 0); + ADDENTRY (0, 3, 0, 3, 1, 0, HPW-1, 0, 0); + ADDENTRY (3, 3, 0, 3, 1, 0, HBP + (VIDEO_COLS * 2) + 72, 1, 0); +/* + * Active area + */ + ADDENTRY (0, 3, 0, 3, 1, 0, VID_R , 1, 0); + ADDENTRY (0, 3, 0, 3, 1, 0, HPW-1, 0, 0); + ADDENTRY (3, 3, 0, 3, 1, 0, HBP, 0, 0); + ADDENTRY (3, 3, 0, 3, 0, 0, VIDEO_COLS*2, 0, 0); + ADDENTRY (3, 3, 0, 3, 1, 0, 72, 1, 1); + + ADDENTRY (0, 3, 0, 3, 1, 0, 51, 1, 0); + ADDENTRY (0, 3, 0, 3, 1, 0, HPW-1, 0, 0); + ADDENTRY (3, 3, 0, 3, 1, 0, HBP +(VIDEO_COLS * 2) + 72 , 1, 0); +/* + * Odd field + */ + ADDENTRY (0, 3, 0, 3, 1, 0, 2, 0, 0); + ADDENTRY (0, 0, 0, 3, 1, 0, HPW, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, HBP + (VIDEO_COLS * 2) + 72, 0, 0); + + ADDENTRY (0, 0, 0, 3, 1, 0, VPW+1, 1, 0); + ADDENTRY (0, 0, 0, 3, 1, 0, HPW-1, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, HBP + (VIDEO_COLS * 2) + 72, 1, 0); + + ADDENTRY (0, 3, 0, 3, 1, 0, VBP, 1, 0); + ADDENTRY (0, 3, 0, 3, 1, 0, HPW-1, 0, 0); + ADDENTRY (3, 3, 0, 3, 1, 0, HBP + (VIDEO_COLS * 2) + 72, 1, 0); +/* + * Active area + */ + ADDENTRY (0, 3, 0, 3, 1, 0, VID_R , 1, 0); + ADDENTRY (0, 3, 0, 3, 1, 0, HPW-1, 0, 0); + ADDENTRY (3, 3, 0, 3, 1, 0, HBP, 0, 0); + ADDENTRY (3, 3, 0, 3, 0, 0, VIDEO_COLS*2, 0, 0); + ADDENTRY (3, 3, 0, 3, 1, 0, 72, 1, 1); + + ADDENTRY (0, 3, 0, 3, 1, 0, 51, 1, 0); + ADDENTRY (0, 3, 0, 3, 1, 0, HPW-1, 0, 0); + ADDENTRY (3, 3, 0, 3, 1, 0, HBP +(VIDEO_COLS * 2) + 72 , 1, 0); + + debug ("done\n"); + +#else /* !CONFIG_RRVISION */ + +/* + * Hx Vx Fx Bx VDS INT LCYC LP LST + * + * vertical; blanking + */ + ADDENTRY (0, 0, 0, 0, 1, 0, 22, 1, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 263, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 1440, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 24, 1, 0); +/* + * active area (TOP) + */ + if (Y1 > 0) { + ADDENTRY (0, 0, 0, 0, 1, 0, Y1, 1, 0); /* 11? */ + ADDENTRY (3, 0, 0, 0, 1, 0, 255, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, 1448, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 24, 1, 0); + } +/* + * field active area (CENTER) + */ + ADDENTRY (0, 0, 0, 0, 1, 0, 288 - DY, 1, 0); /* 265? */ + ADDENTRY (3, 0, 0, 0, 1, 0, 255, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, 8 + X1, 0, 0); + ADDENTRY (3, 0, 0, 3, 0, 0, VIDEO_COLS * 2, 0, 0); + + if (X2 > 0) + ADDENTRY (3, 0, 0, 1, 1, 0, X2, 0, 0); + + ADDENTRY (3, 0, 0, 0, 1, 0, 24, 1, 0); +/* + * field active area (BOTTOM) + */ + if (Y2 > 0) { + ADDENTRY (0, 0, 0, 0, 1, 0, Y2, 1, 0); /* 12? */ + ADDENTRY (3, 0, 0, 0, 1, 0, 255, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, 1448, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 24, 1, 0); + } +/* + * field vertical; blanking + */ + ADDENTRY (0, 0, 0, 0, 1, 0, 2, 1, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 263, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 1440, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 24, 1, 0); +/* + * Create the other field (like this, but whit other field selected, + * one more cycle loop and a last identifier) + */ + video_mode_dupefield (vr, &vr[entry], entry); +#endif /* CONFIG_RRVISION */ + +#endif /* VIDEO_MODE_PAL */ + + /* See what FIFO are we using */ + fifo = GETBIT (immap->im_vid.vid_vsr, VIDEO_VSR_CAS); + + /* Set number of lines and burst (only one frame for now) */ + if (fifo) { + immap->im_vid.vid_vfcr0 = VIDEO_BURST_LEN | + (VIDEO_BURST_LEN << 8) | ((VIDEO_ROWS / 2) << 19); + } else { + immap->im_vid.vid_vfcr1 = VIDEO_BURST_LEN | + (VIDEO_BURST_LEN << 8) | ((VIDEO_ROWS / 2) << 19); + } + + SETBIT (immap->im_vid.vid_vcmr, VIDEO_VCMR_ASEL, !fifo); + +/* + * Wait until changes are applied (not done) + * while (GETBIT(immap->im_vid.vid_vsr, VIDEO_VSR_CAS) == fifo) ; + */ + + /* Return number of VRAM entries */ + return entry * 2; +} + +static void video_encoder_init (void) +{ +#ifdef VIDEO_I2C + int rc; + + /* Initialize the I2C */ + debug ("[VIDEO ENCODER] Initializing I2C bus...\n"); +#ifdef CONFIG_SYS_I2C + i2c_init_all(); +#else + i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); +#endif + +#ifdef CONFIG_FADS + /* Reset ADV7176 chip */ + debug ("[VIDEO ENCODER] Resetting encoder...\n"); + (*(int *) BCSR4) &= ~(1 << 21); + + /* Wait for 5 ms inside the reset */ + debug ("[VIDEO ENCODER] Waiting for encoder reset...\n"); + udelay (5000); + + /* Take ADV7176 out of reset */ + (*(int *) BCSR4) |= 1 << 21; + + /* Wait for 5 ms after the reset */ + udelay (5000); +#endif /* CONFIG_FADS */ + + /* Send configuration */ +#ifdef DEBUG + { + int i; + + puts ("[VIDEO ENCODER] Configuring the encoder...\n"); + + printf ("Sending %zu bytes (@ %08lX) to I2C 0x%lX:\n ", + sizeof(video_encoder_data), + (ulong)video_encoder_data, + (ulong)VIDEO_I2C_ADDR); + for (i=0; i<sizeof(video_encoder_data); ++i) { + printf(" %02X", video_encoder_data[i]); + } + putc ('\n'); + } +#endif /* DEBUG */ + + if ((rc = i2c_write (VIDEO_I2C_ADDR, 0, 1, + video_encoder_data, + sizeof(video_encoder_data))) != 0) { + printf ("i2c_send error: rc=%d\n", rc); + return; + } +#endif /* VIDEO_I2C */ + return; +} + +static void video_ctrl_init (void *memptr) +{ + immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + + video_fb_address = memptr; + + /* Set background */ + debug ("[VIDEO CTRL] Setting background color...\n"); + immap->im_vid.vid_vbcb = VIDEO_BG_COL; + + /* Show the background */ + debug ("[VIDEO CTRL] Forcing background...\n"); + SETBIT (immap->im_vid.vid_vcmr, VIDEO_VCMR_BD, 1); + + /* Turn off video controller */ + debug ("[VIDEO CTRL] Turning off video controller...\n"); + SETBIT (immap->im_vid.vid_vccr, VIDEO_VCCR_VON, 0); + +#ifdef CONFIG_FADS + /* Turn on Video Port LED */ + debug ("[VIDEO CTRL] Turning off video port led...\n"); + SETBIT (*(int *) BCSR4, VIDEO_BCSR4_VIDLED_BIT, 1); + + /* Disable internal clock */ + debug ("[VIDEO CTRL] Disabling internal clock...\n"); + SETBIT (*(int *) BCSR4, VIDEO_BCSR4_EXTCLK_BIT, 0); +#endif + + /* Generate and make active a new video mode */ + debug ("[VIDEO CTRL] Generating video mode...\n"); + video_mode_generate (); + + /* Start of frame buffer (even and odd frame, to make it working with */ + /* any selected active set) */ + debug ("[VIDEO CTRL] Setting frame buffer address...\n"); + immap->im_vid.vid_vfaa1 = + immap->im_vid.vid_vfaa0 = (u32) video_fb_address; + immap->im_vid.vid_vfba1 = + immap->im_vid.vid_vfba0 = + (u32) video_fb_address + VIDEO_LINE_LEN; + + /* YUV, Big endian, SHIFT/CLK/CLK input (BEFORE ENABLING 27MHZ EXT CLOCK) */ + debug ("[VIDEO CTRL] Setting pixel mode and clocks...\n"); + immap->im_vid.vid_vccr = 0x2042; + + /* Configure port pins */ + debug ("[VIDEO CTRL] Configuring input/output pins...\n"); + immap->im_ioport.iop_pdpar = 0x1fff; + immap->im_ioport.iop_pddir = 0x0000; + +#ifdef CONFIG_FADS + /* Turn on Video Port Clock - ONLY AFTER SET VCCR TO ENABLE EXTERNAL CLOCK */ + debug ("[VIDEO CTRL] Turning on video clock...\n"); + SETBIT (*(int *) BCSR4, VIDEO_BCSR4_EXTCLK_BIT, 1); + + /* Turn on Video Port LED */ + debug ("[VIDEO CTRL] Turning on video port led...\n"); + SETBIT (*(int *) BCSR4, VIDEO_BCSR4_VIDLED_BIT, 0); +#endif +#ifdef CONFIG_RRVISION + debug ("PC5->Output(1): enable PAL clock"); + immap->im_ioport.iop_pcpar &= ~(0x0400); + immap->im_ioport.iop_pcdir |= 0x0400 ; + immap->im_ioport.iop_pcdat |= 0x0400 ; + debug ("PDPAR=0x%04X PDDIR=0x%04X PDDAT=0x%04X\n", + immap->im_ioport.iop_pdpar, + immap->im_ioport.iop_pddir, + immap->im_ioport.iop_pddat); + debug ("PCPAR=0x%04X PCDIR=0x%04X PCDAT=0x%04X\n", + immap->im_ioport.iop_pcpar, + immap->im_ioport.iop_pcdir, + immap->im_ioport.iop_pcdat); +#endif /* CONFIG_RRVISION */ + + /* Blanking the screen. */ + debug ("[VIDEO CTRL] Blanking the screen...\n"); + video_fill (VIDEO_BG_COL); + + /* + * Turns on Aggressive Mode. Normally, turning on the caches + * will cause the screen to flicker when the caches try to + * fill. This gives the FIFO's for the Video Controller + * higher priority and prevents flickering because of + * underrun. This may still be an issue when using FLASH, + * since accessing data from Flash is so slow. + */ + debug ("[VIDEO CTRL] Turning on aggressive mode...\n"); + immap->im_siu_conf.sc_sdcr = 0x40; + + /* Turn on video controller */ + debug ("[VIDEO CTRL] Turning on video controller...\n"); + SETBIT (immap->im_vid.vid_vccr, VIDEO_VCCR_VON, 1); + + /* Show the display */ + debug ("[VIDEO CTRL] Enabling the video...\n"); + SETBIT (immap->im_vid.vid_vcmr, VIDEO_VCMR_BD, 0); +} + +/************************************************************************/ +/* ** CONSOLE FUNCTIONS */ +/************************************************************************/ + +static void console_scrollup (void) +{ + /* Copy up rows ignoring the first one */ + memcpyl (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE >> 2); + + /* Clear the last one */ + memsetl (CONSOLE_ROW_LAST, CONSOLE_ROW_SIZE >> 2, VIDEO_BG_COL); +} + +static inline void console_back (void) +{ + console_col--; + + if (console_col < 0) { + console_col = CONSOLE_COLS - 1; + console_row--; + if (console_row < 0) + console_row = 0; + } + + video_putchar ( console_col * VIDEO_FONT_WIDTH, + console_row * VIDEO_FONT_HEIGHT, ' '); +} + +static inline void console_newline (void) +{ + console_row++; + console_col = 0; + + /* Check if we need to scroll the terminal */ + if (console_row >= CONSOLE_ROWS) { + /* Scroll everything up */ + console_scrollup (); + + /* Decrement row number */ + console_row--; + } +} + +void video_putc (const char c) +{ + if (!video_enable) { + serial_putc (c); + return; + } + + switch (c) { + case 13: /* Simply ignore this */ + break; + + case '\n': /* Next line, please */ + console_newline (); + break; + + case 9: /* Tab (8 chars alignment) */ + console_col |= 0x0008; /* Next 8 chars boundary */ + console_col &= ~0x0007; /* Set this bit to zero */ + + if (console_col >= CONSOLE_COLS) + console_newline (); + break; + + case 8: /* Eat last character */ + console_back (); + break; + + default: /* Add to the console */ + video_putchar ( console_col * VIDEO_FONT_WIDTH, + console_row * VIDEO_FONT_HEIGHT, c); + console_col++; + /* Check if we need to go to next row */ + if (console_col >= CONSOLE_COLS) + console_newline (); + } +} + +void video_puts (const char *s) +{ + int count = strlen (s); + + if (!video_enable) + while (count--) + serial_putc (*s++); + else + while (count--) + video_putc (*s++); +} + +/************************************************************************/ +/* ** CURSOR BLINKING FUNCTIONS */ +/************************************************************************/ + +#ifdef VIDEO_BLINK + +#define BLINK_TIMER_ID 0 +#define BLINK_TIMER_HZ 2 + +static unsigned char blink_enabled = 0; +static timer_t blink_timer; + +static void blink_update (void) +{ + static int blink_row = -1, blink_col = -1, blink_old = 0; + + /* Check if we have a new position to invert */ + if ((console_row != blink_row) || (console_col != blink_col)) { + /* Check if we need to reverse last character */ + if (blink_old) + video_revchar ( blink_col * VIDEO_FONT_WIDTH, + (blink_row +#ifdef CONFIG_VIDEO_LOGO + + VIDEO_LOGO_HEIGHT +#endif + ) * VIDEO_FONT_HEIGHT); + + /* Update values */ + blink_row = console_row; + blink_col = console_col; + blink_old = 0; + } + +/* Reverse this character */ + blink_old = !blink_old; + video_revchar ( console_col * VIDEO_FONT_WIDTH, + (console_row +#ifdef CONFIG_VIDEO_LOGO + + VIDEO_LOGO_HEIGHT +#endif + ) * VIDEO_FONT_HEIGHT); + +} + +/* + * Handler for blinking cursor + */ +static void blink_handler (void *arg) +{ +/* Blink */ + blink_update (); +/* Ack the timer */ + timer_ack (&blink_timer); +} + +int blink_set (int blink) +{ + int ret = blink_enabled; + + if (blink) + timer_enable (&blink_timer); + else + timer_disable (&blink_timer); + + blink_enabled = blink; + + return ret; +} + +static inline void blink_close (void) +{ + timer_close (&blink_timer); +} + +static inline void blink_init (void) +{ + timer_init (&blink_timer, + BLINK_TIMER_ID, BLINK_TIMER_HZ, + blink_handler); +} +#endif + +/************************************************************************/ +/* ** LOGO PLOTTING FUNCTIONS */ +/************************************************************************/ + +#ifdef CONFIG_VIDEO_LOGO +void easylogo_plot (fastimage_t * image, void *screen, int width, int x, + int y) +{ + int skip = width - image->width, xcount, ycount = image->height; + +#ifdef VIDEO_MODE_YUYV + ushort *source = (ushort *) image->data; + ushort *dest = (ushort *) screen + y * width + x; + + while (ycount--) { + xcount = image->width; + while (xcount--) + *dest++ = *source++; + dest += skip; + } +#endif +#ifdef VIDEO_MODE_RGB + unsigned char + *source = (unsigned short *) image->data, + *dest = (unsigned short *) screen + ((y * width) + x) * 3; + + while (ycount--) { + xcount = image->width * 3; + memcpy (dest, source, xcount); + source += xcount; + dest += ycount; + } +#endif +} + +static void *video_logo (void) +{ + u16 *screen = video_fb_address, width = VIDEO_COLS; +#ifdef VIDEO_INFO +# ifndef CONFIG_FADS + char temp[32]; +# endif + char info[80]; +#endif /* VIDEO_INFO */ + + easylogo_plot (VIDEO_LOGO_ADDR, screen, width, 0, 0); + +#ifdef VIDEO_INFO + sprintf (info, "%s (%s - %s) ", + U_BOOT_VERSION, U_BOOT_DATE, U_BOOT_TIME); + video_drawstring (VIDEO_INFO_X, VIDEO_INFO_Y, info); + + sprintf (info, "(C) 2002 DENX Software Engineering"); + video_drawstring (VIDEO_INFO_X, VIDEO_INFO_Y + VIDEO_FONT_HEIGHT, + info); + + sprintf (info, " Wolfgang DENK, wd@denx.de"); + video_drawstring (VIDEO_INFO_X, VIDEO_INFO_Y + VIDEO_FONT_HEIGHT * 2, + info); +#ifndef CONFIG_FADS /* all normal boards */ + /* leave one blank line */ + + sprintf(info, "MPC823 CPU at %s MHz, %ld MiB RAM, %ld MiB Flash", + strmhz(temp, gd->cpu_clk), + gd->ram_size >> 20, + gd->bd->bi_flashsize >> 20 ); + video_drawstring (VIDEO_INFO_X, VIDEO_INFO_Y + VIDEO_FONT_HEIGHT * 4, + info); +#else /* FADS :-( */ + sprintf (info, "MPC823 CPU at 50 MHz on FADS823 board"); + video_drawstring (VIDEO_INFO_X, VIDEO_INFO_Y + VIDEO_FONT_HEIGHT, + info); + + sprintf(info, "2MiB FLASH - 8MiB DRAM - 4MiB SRAM"); + video_drawstring (VIDEO_INFO_X, VIDEO_INFO_Y + VIDEO_FONT_HEIGHT * 2, + info); +#endif +#endif + + return video_fb_address + VIDEO_LOGO_HEIGHT * VIDEO_LINE_LEN; +} +#endif + +/************************************************************************/ +/* ** VIDEO HIGH-LEVEL FUNCTIONS */ +/************************************************************************/ + +static int video_init (void *videobase) +{ + /* Initialize the encoder */ + debug ("[VIDEO] Initializing video encoder...\n"); + video_encoder_init (); + + /* Initialize the video controller */ + debug ("[VIDEO] Initializing video controller at %08x...\n", + (int) videobase); + video_ctrl_init (videobase); + + /* Setting the palette */ + video_setpalette (CONSOLE_COLOR_BLACK, 0, 0, 0); + video_setpalette (CONSOLE_COLOR_RED, 0xFF, 0, 0); + video_setpalette (CONSOLE_COLOR_GREEN, 0, 0xFF, 0); + video_setpalette (CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); + video_setpalette (CONSOLE_COLOR_BLUE, 0, 0, 0xFF); + video_setpalette (CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); + video_setpalette (CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); + video_setpalette (CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); + video_setpalette (CONSOLE_COLOR_GREY2, 0xF8, 0xF8, 0xF8); + video_setpalette (CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); + +#ifndef CONFIG_SYS_WHITE_ON_BLACK + video_setfgcolor (CONSOLE_COLOR_BLACK); + video_setbgcolor (CONSOLE_COLOR_GREY2); +#else + video_setfgcolor (CONSOLE_COLOR_GREY2); + video_setbgcolor (CONSOLE_COLOR_BLACK); +#endif /* CONFIG_SYS_WHITE_ON_BLACK */ + +#ifdef CONFIG_VIDEO_LOGO + /* Paint the logo and retrieve tv base address */ + debug ("[VIDEO] Drawing the logo...\n"); + video_console_address = video_logo (); +#else + video_console_address = video_fb_address; +#endif + +#ifdef VIDEO_BLINK + /* Enable the blinking (under construction) */ + blink_init (); + blink_set (0); /* To Fix! */ +#endif + + /* Initialize the console */ + console_col = 0; + console_row = 0; + video_enable = 1; + +#ifdef VIDEO_MODE_PAL +# define VIDEO_MODE_TMP1 "PAL" +#endif +#ifdef VIDEO_MODE_NTSC +# define VIDEO_MODE_TMP1 "NTSC" +#endif +#ifdef VIDEO_MODE_YUYV +# define VIDEO_MODE_TMP2 "YCbYCr" +#endif +#ifdef VIDEO_MODE_RGB +# define VIDEO_MODE_TMP2 "RGB" +#endif + debug ( VIDEO_MODE_TMP1 + " %dx%dx%d (" VIDEO_MODE_TMP2 ") on %s - console %dx%d\n", + VIDEO_COLS, VIDEO_ROWS, VIDEO_MODE_BPP, + VIDEO_ENCODER_NAME, CONSOLE_COLS, CONSOLE_ROWS); + return 0; +} + +int drv_video_init (void) +{ + int error, devices = 1; + + struct stdio_dev videodev; + + video_init ((void *)(gd->fb_base)); /* Video initialization */ + +/* Device initialization */ + + memset (&videodev, 0, sizeof (videodev)); + + strcpy (videodev.name, "video"); + videodev.ext = DEV_EXT_VIDEO; /* Video extensions */ + videodev.flags = DEV_FLAGS_OUTPUT; /* Output only */ + videodev.putc = video_putc; /* 'putc' function */ + videodev.puts = video_puts; /* 'puts' function */ + + error = stdio_register (&videodev); + + return (error == 0) ? devices : error; +} + +/************************************************************************/ +/* ** ROM capable initialization part - needed to reserve FB memory */ +/************************************************************************/ + +/* + * This is called early in the system initialization to grab memory + * for the video controller. + * Returns new address for monitor, after reserving video buffer memory + * + * Note that this is running from ROM, so no write access to global data. + */ +ulong video_setmem (ulong addr) +{ + /* Allocate pages for the frame buffer. */ + addr -= VIDEO_SIZE; + + debug ("Reserving %dk for Video Framebuffer at: %08lx\n", + VIDEO_SIZE>>10, addr); + + return (addr); +} + +#endif |