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cfb_console.c
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/*
* (C) Copyright 2002 ELTEC Elektronik AG
* Frank Gottschling <fgottschling@eltec.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
/*
* cfb_console.c
*
* Color Framebuffer Console driver for 8/15/16/24/32 bits per pixel.
*
* At the moment only the 8x16 font is tested and the font fore- and
* background color is limited to black/white/gray colors. The Linux
* logo can be placed in the upper left corner and additional board
* information strings (that normally goes to serial port) can be drawn.
*
* The console driver can use a keyboard interface for character input
* but this is deprecated. Only rk51 uses it.
*
* Character output goes to a memory-mapped video
* framebuffer with little or big-endian organisation.
* With environment setting 'console=serial' the console i/o can be
* forced to serial port.
*
* The driver uses graphic specific defines/parameters/functions:
*
* (for SMI LynxE graphic chip)
*
* VIDEO_FB_LITTLE_ENDIAN - framebuffer organisation default: big endian
* VIDEO_HW_RECTFILL - graphic driver supports hardware rectangle fill
* VIDEO_HW_BITBLT - graphic driver supports hardware bit blt
*
* Console Parameters are set by graphic drivers global struct:
*
* VIDEO_VISIBLE_COLS - x resolution
* VIDEO_VISIBLE_ROWS - y resolution
* VIDEO_PIXEL_SIZE - storage size in byte per pixel
* VIDEO_DATA_FORMAT - graphical data format GDF
* VIDEO_FB_ADRS - start of video memory
*
* VIDEO_KBD_INIT_FCT - init function for keyboard
* VIDEO_TSTC_FCT - keyboard_tstc function
* VIDEO_GETC_FCT - keyboard_getc function
*
* CONFIG_VIDEO_LOGO - display Linux Logo in upper left corner.
* Use CONFIG_SPLASH_SCREEN_ALIGN with
* environment variable "splashpos" to place
* the logo on other position. In this case
* no CONSOLE_EXTRA_INFO is possible.
* CONFIG_VIDEO_BMP_LOGO - use bmp_logo instead of linux_logo
* CONFIG_CONSOLE_EXTRA_INFO - display additional board information
* strings that normaly goes to serial
* port. This define requires a board
* specific function:
* video_drawstring (VIDEO_INFO_X,
* VIDEO_INFO_Y + i*VIDEO_FONT_HEIGHT,
* info);
* that fills a info buffer at i=row.
* s.a: board/eltec/bab7xx.
*
* CONFIG_VIDEO_SW_CURSOR: - Draws a cursor after the last
* character. No blinking is provided.
* Uses the macros CURSOR_SET and
* CURSOR_OFF.
*/
#include <common.h>
#include <fdtdec.h>
#include <version.h>
#include <malloc.h>
#include <video.h>
#include <linux/compiler.h>
/*
* Defines for the CT69000 driver
*/
#ifdef CONFIG_VIDEO_CT69000
#define VIDEO_FB_LITTLE_ENDIAN
#define VIDEO_HW_RECTFILL
#define VIDEO_HW_BITBLT
#endif
#if defined(CONFIG_VIDEO_MXS)
#define VIDEO_FB_16BPP_WORD_SWAP
#endif
/*
* Defines for the MB862xx driver
*/
#ifdef CONFIG_VIDEO_MB862xx
#ifdef CONFIG_VIDEO_CORALP
#define VIDEO_FB_LITTLE_ENDIAN
#endif
#ifdef CONFIG_VIDEO_MB862xx_ACCEL
#define VIDEO_HW_RECTFILL
#define VIDEO_HW_BITBLT
#endif
#endif
/*
* Defines for the i.MX31 driver (mx3fb.c)
*/
#if defined(CONFIG_VIDEO_MX3) || defined(CONFIG_VIDEO_IPUV3)
#define VIDEO_FB_16BPP_WORD_SWAP
#endif
/*
* Include video_fb.h after definitions of VIDEO_HW_RECTFILL etc.
*/
#include <video_fb.h>
#include <splash.h>
/*
* some Macros
*/
#define VIDEO_VISIBLE_COLS (pGD->winSizeX)
#define VIDEO_VISIBLE_ROWS (pGD->winSizeY)
#define VIDEO_PIXEL_SIZE (pGD->gdfBytesPP)
#define VIDEO_DATA_FORMAT (pGD->gdfIndex)
#define VIDEO_FB_ADRS (pGD->frameAdrs)
/*
* Console device
*/
#include <version.h>
#include <linux/types.h>
#include <stdio_dev.h>
#include <video_font.h>
#if defined(CONFIG_CMD_DATE)
#include <rtc.h>
#endif
#if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
#include <watchdog.h>
#include <bmp_layout.h>
#include <splash.h>
#endif
#if !defined(CONFIG_VIDEO_SW_CURSOR)
/* no Cursor defined */
#define CURSOR_ON
#define CURSOR_OFF
#define CURSOR_SET
#endif
#if defined(CONFIG_VIDEO_SW_CURSOR)
void console_cursor(int state);
#define CURSOR_ON console_cursor(1)
#define CURSOR_OFF console_cursor(0)
#define CURSOR_SET video_set_cursor()
#endif /* CONFIG_VIDEO_SW_CURSOR */
#ifdef CONFIG_VIDEO_LOGO
#ifdef CONFIG_VIDEO_BMP_LOGO
#include <bmp_logo.h>
#include <bmp_logo_data.h>
#define VIDEO_LOGO_WIDTH BMP_LOGO_WIDTH
#define VIDEO_LOGO_HEIGHT BMP_LOGO_HEIGHT
#define VIDEO_LOGO_LUT_OFFSET BMP_LOGO_OFFSET
#define VIDEO_LOGO_COLORS BMP_LOGO_COLORS
#else /* CONFIG_VIDEO_BMP_LOGO */
#define LINUX_LOGO_WIDTH 80
#define LINUX_LOGO_HEIGHT 80
#define LINUX_LOGO_COLORS 214
#define LINUX_LOGO_LUT_OFFSET 0x20
#define __initdata
#include <linux_logo.h>
#define VIDEO_LOGO_WIDTH LINUX_LOGO_WIDTH
#define VIDEO_LOGO_HEIGHT LINUX_LOGO_HEIGHT
#define VIDEO_LOGO_LUT_OFFSET LINUX_LOGO_LUT_OFFSET
#define VIDEO_LOGO_COLORS LINUX_LOGO_COLORS
#endif /* CONFIG_VIDEO_BMP_LOGO */
#define VIDEO_INFO_X (VIDEO_LOGO_WIDTH)
#define VIDEO_INFO_Y (VIDEO_FONT_HEIGHT/2)
#else /* CONFIG_VIDEO_LOGO */
#define VIDEO_LOGO_WIDTH 0
#define VIDEO_LOGO_HEIGHT 0
#endif /* CONFIG_VIDEO_LOGO */
#define VIDEO_COLS VIDEO_VISIBLE_COLS
#define VIDEO_ROWS VIDEO_VISIBLE_ROWS
#ifndef VIDEO_LINE_LEN
#define VIDEO_LINE_LEN (VIDEO_COLS * VIDEO_PIXEL_SIZE)
#endif
#define VIDEO_SIZE (VIDEO_ROWS * VIDEO_LINE_LEN)
#define VIDEO_BURST_LEN (VIDEO_COLS/8)
#ifdef CONFIG_VIDEO_LOGO
#define CONSOLE_ROWS ((VIDEO_ROWS - video_logo_height) / VIDEO_FONT_HEIGHT)
#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)
/* By default we scroll by a single line */
#ifndef CONFIG_CONSOLE_SCROLL_LINES
#define CONFIG_CONSOLE_SCROLL_LINES 1
#endif
/* Macros */
#ifdef VIDEO_FB_LITTLE_ENDIAN
#define SWAP16(x) ((((x) & 0x00ff) << 8) | \
((x) >> 8) \
)
#define SWAP32(x) ((((x) & 0x000000ff) << 24) | \
(((x) & 0x0000ff00) << 8) | \
(((x) & 0x00ff0000) >> 8) | \
(((x) & 0xff000000) >> 24) \
)
#define SHORTSWAP32(x) ((((x) & 0x000000ff) << 8) | \
(((x) & 0x0000ff00) >> 8) | \
(((x) & 0x00ff0000) << 8) | \
(((x) & 0xff000000) >> 8) \
)
#else
#define SWAP16(x) (x)
#define SWAP32(x) (x)
#if defined(VIDEO_FB_16BPP_WORD_SWAP)
#define SHORTSWAP32(x) (((x) >> 16) | ((x) << 16))
#else
#define SHORTSWAP32(x) (x)
#endif
#endif
DECLARE_GLOBAL_DATA_PTR;
/* Locals */
static GraphicDevice *pGD; /* Pointer to Graphic array */
static void *video_fb_address; /* frame buffer address */
static void *video_console_address; /* console buffer start address */
static int video_logo_height = VIDEO_LOGO_HEIGHT;
static int __maybe_unused cursor_state;
static int __maybe_unused old_col;
static int __maybe_unused old_row;
static int console_col; /* cursor col */
static int console_row; /* cursor row */
static u32 eorx, fgx, bgx; /* color pats */
static int cfb_do_flush_cache;
#ifdef CONFIG_CFB_CONSOLE_ANSI
static char ansi_buf[10];
static int ansi_buf_size;
static int ansi_colors_need_revert;
static int ansi_cursor_hidden;
#endif
static const int video_font_draw_table8[] = {
0x00000000, 0x000000ff, 0x0000ff00, 0x0000ffff,
0x00ff0000, 0x00ff00ff, 0x00ffff00, 0x00ffffff,
0xff000000, 0xff0000ff, 0xff00ff00, 0xff00ffff,
0xffff0000, 0xffff00ff, 0xffffff00, 0xffffffff
};
static const int video_font_draw_table15[] = {
0x00000000, 0x00007fff, 0x7fff0000, 0x7fff7fff
};
static const int video_font_draw_table16[] = {
0x00000000, 0x0000ffff, 0xffff0000, 0xffffffff
};
static const int video_font_draw_table24[16][3] = {
{0x00000000, 0x00000000, 0x00000000},
{0x00000000, 0x00000000, 0x00ffffff},
{0x00000000, 0x0000ffff, 0xff000000},
{0x00000000, 0x0000ffff, 0xffffffff},
{0x000000ff, 0xffff0000, 0x00000000},
{0x000000ff, 0xffff0000, 0x00ffffff},
{0x000000ff, 0xffffffff, 0xff000000},
{0x000000ff, 0xffffffff, 0xffffffff},
{0xffffff00, 0x00000000, 0x00000000},
{0xffffff00, 0x00000000, 0x00ffffff},
{0xffffff00, 0x0000ffff, 0xff000000},
{0xffffff00, 0x0000ffff, 0xffffffff},
{0xffffffff, 0xffff0000, 0x00000000},
{0xffffffff, 0xffff0000, 0x00ffffff},
{0xffffffff, 0xffffffff, 0xff000000},
{0xffffffff, 0xffffffff, 0xffffffff}
};
static const int video_font_draw_table32[16][4] = {
{0x00000000, 0x00000000, 0x00000000, 0x00000000},
{0x00000000, 0x00000000, 0x00000000, 0x00ffffff},
{0x00000000, 0x00000000, 0x00ffffff, 0x00000000},
{0x00000000, 0x00000000, 0x00ffffff, 0x00ffffff},
{0x00000000, 0x00ffffff, 0x00000000, 0x00000000},
{0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff},
{0x00000000, 0x00ffffff, 0x00ffffff, 0x00000000},
{0x00000000, 0x00ffffff, 0x00ffffff, 0x00ffffff},
{0x00ffffff, 0x00000000, 0x00000000, 0x00000000},
{0x00ffffff, 0x00000000, 0x00000000, 0x00ffffff},
{0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000},
{0x00ffffff, 0x00000000, 0x00ffffff, 0x00ffffff},
{0x00ffffff, 0x00ffffff, 0x00000000, 0x00000000},
{0x00ffffff, 0x00ffffff, 0x00000000, 0x00ffffff},
{0x00ffffff, 0x00ffffff, 0x00ffffff, 0x00000000},
{0x00ffffff, 0x00ffffff, 0x00ffffff, 0x00ffffff}
};
/*
* Implement a weak default function for boards that optionally
* need to skip the cfb initialization.
*/
__weak int board_cfb_skip(void)
{
/* As default, don't skip cfb init */
return 0;
}
static void video_drawchars(int xx, int yy, unsigned char *s, int count)
{
u8 *cdat, *dest, *dest0;
int rows, offset, c;
offset = yy * VIDEO_LINE_LEN + xx * VIDEO_PIXEL_SIZE;
dest0 = video_fb_address + offset;
switch (VIDEO_DATA_FORMAT) {
case GDF__8BIT_INDEX:
case GDF__8BIT_332RGB:
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_table8[bits >> 4] &
eorx) ^ bgx;
if (VIDEO_FONT_WIDTH == 4)
continue;
((u32 *) dest)[1] =
(video_font_draw_table8[bits & 15] &
eorx) ^ bgx;
}
dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
s++;
}
break;
case GDF_15BIT_555RGB:
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] =
SHORTSWAP32((video_font_draw_table15
[bits >> 6] & eorx) ^
bgx);
((u32 *) dest)[1] =
SHORTSWAP32((video_font_draw_table15
[bits >> 4 & 3] & eorx) ^
bgx);
if (VIDEO_FONT_WIDTH == 4)
continue;
((u32 *) dest)[2] =
SHORTSWAP32((video_font_draw_table15
[bits >> 2 & 3] & eorx) ^
bgx);
((u32 *) dest)[3] =
SHORTSWAP32((video_font_draw_table15
[bits & 3] & eorx) ^
bgx);
}
dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
s++;
}
break;
case GDF_16BIT_565RGB:
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] =
SHORTSWAP32((video_font_draw_table16
[bits >> 6] & eorx) ^
bgx);
((u32 *) dest)[1] =
SHORTSWAP32((video_font_draw_table16
[bits >> 4 & 3] & eorx) ^
bgx);
if (VIDEO_FONT_WIDTH == 4)
continue;
((u32 *) dest)[2] =
SHORTSWAP32((video_font_draw_table16
[bits >> 2 & 3] & eorx) ^
bgx);
((u32 *) dest)[3] =
SHORTSWAP32((video_font_draw_table16
[bits & 3] & eorx) ^
bgx);
}
dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
s++;
}
break;
case GDF_32BIT_X888RGB:
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] =
SWAP32((video_font_draw_table32
[bits >> 4][0] & eorx) ^ bgx);
((u32 *) dest)[1] =
SWAP32((video_font_draw_table32
[bits >> 4][1] & eorx) ^ bgx);
((u32 *) dest)[2] =
SWAP32((video_font_draw_table32
[bits >> 4][2] & eorx) ^ bgx);
((u32 *) dest)[3] =
SWAP32((video_font_draw_table32
[bits >> 4][3] & eorx) ^ bgx);
if (VIDEO_FONT_WIDTH == 4)
continue;
((u32 *) dest)[4] =
SWAP32((video_font_draw_table32
[bits & 15][0] & eorx) ^ bgx);
((u32 *) dest)[5] =
SWAP32((video_font_draw_table32
[bits & 15][1] & eorx) ^ bgx);
((u32 *) dest)[6] =
SWAP32((video_font_draw_table32
[bits & 15][2] & eorx) ^ bgx);
((u32 *) dest)[7] =
SWAP32((video_font_draw_table32
[bits & 15][3] & eorx) ^ bgx);
}
dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
s++;
}
break;
case GDF_24BIT_888RGB:
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_table24[bits >> 4][0]
& eorx) ^ bgx;
((u32 *) dest)[1] =
(video_font_draw_table24[bits >> 4][1]
& eorx) ^ bgx;
((u32 *) dest)[2] =
(video_font_draw_table24[bits >> 4][2]
& eorx) ^ bgx;
if (VIDEO_FONT_WIDTH == 4)
continue;
((u32 *) dest)[3] =
(video_font_draw_table24[bits & 15][0]
& eorx) ^ bgx;
((u32 *) dest)[4] =
(video_font_draw_table24[bits & 15][1]
& eorx) ^ bgx;
((u32 *) dest)[5] =
(video_font_draw_table24[bits & 15][2]
& eorx) ^ bgx;
}
dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
s++;
}
break;
}
}
static inline void video_drawstring(int xx, int yy, unsigned char *s)
{
video_drawchars(xx, yy, s, strlen((char *) s));
}
static void video_putchar(int xx, int yy, unsigned char c)
{
video_drawchars(xx, yy + video_logo_height, &c, 1);
}
#if defined(CONFIG_VIDEO_SW_CURSOR)
static void video_set_cursor(void)
{
if (cursor_state)
console_cursor(0);
console_cursor(1);
}
static void video_invertchar(int xx, int yy)
{
int firstx = xx * VIDEO_PIXEL_SIZE;
int lastx = (xx + VIDEO_FONT_WIDTH) * VIDEO_PIXEL_SIZE;
int firsty = yy * VIDEO_LINE_LEN;
int lasty = (yy + VIDEO_FONT_HEIGHT) * VIDEO_LINE_LEN;
int x, y;
for (y = firsty; y < lasty; y += VIDEO_LINE_LEN) {
for (x = firstx; x < lastx; x++) {
u8 *dest = (u8 *)(video_fb_address) + x + y;
*dest = ~*dest;
}
}
}
void console_cursor(int state)
{
if (cursor_state != state) {
if (cursor_state) {
/* turn off the cursor */
video_invertchar(old_col * VIDEO_FONT_WIDTH,
old_row * VIDEO_FONT_HEIGHT +
video_logo_height);
} else {
/* turn off the cursor and record where it is */
video_invertchar(console_col * VIDEO_FONT_WIDTH,
console_row * VIDEO_FONT_HEIGHT +
video_logo_height);
old_col = console_col;
old_row = console_row;
}
cursor_state = state;
}
if (cfb_do_flush_cache)
flush_cache(VIDEO_FB_ADRS, VIDEO_SIZE);
}
#endif
#ifndef VIDEO_HW_RECTFILL
static void memsetl(int *p, int c, int v)
{
while (c--)
*(p++) = v;
}
#endif
#ifndef VIDEO_HW_BITBLT
static void memcpyl(int *d, int *s, int c)
{
while (c--)
*(d++) = *(s++);
}
#endif
static void console_clear_line(int line, int begin, int end)
{
#ifdef VIDEO_HW_RECTFILL
video_hw_rectfill(VIDEO_PIXEL_SIZE, /* bytes per pixel */
VIDEO_FONT_WIDTH * begin, /* dest pos x */
video_logo_height +
VIDEO_FONT_HEIGHT * line, /* dest pos y */
VIDEO_FONT_WIDTH * (end - begin + 1), /* fr. width */
VIDEO_FONT_HEIGHT, /* frame height */
bgx /* fill color */
);
#else
if (begin == 0 && (end + 1) == CONSOLE_COLS) {
memsetl(CONSOLE_ROW_FIRST +
CONSOLE_ROW_SIZE * line, /* offset of row */
CONSOLE_ROW_SIZE >> 2, /* length of row */
bgx /* fill color */
);
} else {
void *offset;
int i, size;
offset = CONSOLE_ROW_FIRST +
CONSOLE_ROW_SIZE * line + /* offset of row */
VIDEO_FONT_WIDTH *
VIDEO_PIXEL_SIZE * begin; /* offset of col */
size = VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE * (end - begin + 1);
size >>= 2; /* length to end for memsetl() */
/* fill at col offset of i'th line using bgx as fill color */
for (i = 0; i < VIDEO_FONT_HEIGHT; i++)
memsetl(offset + i * VIDEO_LINE_LEN, size, bgx);
}
#endif
}
static void console_scrollup(void)
{
const int rows = CONFIG_CONSOLE_SCROLL_LINES;
int i;
/* copy up rows ignoring the first one */
#ifdef VIDEO_HW_BITBLT
video_hw_bitblt(VIDEO_PIXEL_SIZE, /* bytes per pixel */
0, /* source pos x */
video_logo_height +
VIDEO_FONT_HEIGHT * rows, /* source pos y */
0, /* dest pos x */
video_logo_height, /* dest pos y */
VIDEO_VISIBLE_COLS, /* frame width */
VIDEO_VISIBLE_ROWS
- video_logo_height
- VIDEO_FONT_HEIGHT * rows /* frame height */
);
#else
memcpyl(CONSOLE_ROW_FIRST, CONSOLE_ROW_FIRST + rows * CONSOLE_ROW_SIZE,
(CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows) >> 2);
#endif
/* clear the last one */
for (i = 1; i <= rows; i++)
console_clear_line(CONSOLE_ROWS - i, 0, CONSOLE_COLS - 1);
/* Decrement row number */
console_row -= rows;
}
static void console_back(void)
{
console_col--;
if (console_col < 0) {
console_col = CONSOLE_COLS - 1;
console_row--;
if (console_row < 0)
console_row = 0;
}
}
#ifdef CONFIG_CFB_CONSOLE_ANSI
static void console_clear(void)
{
#ifdef VIDEO_HW_RECTFILL
video_hw_rectfill(VIDEO_PIXEL_SIZE, /* bytes per pixel */
0, /* dest pos x */
video_logo_height, /* dest pos y */
VIDEO_VISIBLE_COLS, /* frame width */
VIDEO_VISIBLE_ROWS, /* frame height */
bgx /* fill color */
);
#else
memsetl(CONSOLE_ROW_FIRST, CONSOLE_SIZE, bgx);
#endif
}
static void console_cursor_fix(void)
{
if (console_row < 0)
console_row = 0;
if (console_row >= CONSOLE_ROWS)
console_row = CONSOLE_ROWS - 1;
if (console_col < 0)
console_col = 0;
if (console_col >= CONSOLE_COLS)
console_col = CONSOLE_COLS - 1;
}
static void console_cursor_up(int n)
{
console_row -= n;
console_cursor_fix();
}
static void console_cursor_down(int n)
{
console_row += n;
console_cursor_fix();
}
static void console_cursor_left(int n)
{
console_col -= n;
console_cursor_fix();
}
static void console_cursor_right(int n)
{
console_col += n;
console_cursor_fix();
}
static void console_cursor_set_position(int row, int col)
{
if (console_row != -1)
console_row = row;
if (console_col != -1)
console_col = col;
console_cursor_fix();
}
static void console_previousline(int n)
{
/* FIXME: also scroll terminal ? */
console_row -= n;
console_cursor_fix();
}
static void console_swap_colors(void)
{
eorx = fgx;
fgx = bgx;
bgx = eorx;
eorx = fgx ^ bgx;
}
static inline int console_cursor_is_visible(void)
{
return !ansi_cursor_hidden;
}
#else
static inline int console_cursor_is_visible(void)
{
return 1;
}
#endif
static void console_newline(int n)
{
console_row += n;
console_col = 0;
/* Check if we need to scroll the terminal */
if (console_row >= CONSOLE_ROWS) {
/* Scroll everything up */
console_scrollup();
}
}
static void console_cr(void)
{
console_col = 0;
}
static void parse_putc(const char c)
{
static int nl = 1;
if (console_cursor_is_visible())
CURSOR_OFF;
switch (c) {
case 13: /* back to first column */
console_cr();
break;
case '\n': /* next line */
if (console_col || (!console_col && nl))
console_newline(1);
nl = 1;
break;
case 9: /* tab 8 */
console_col |= 0x0008;
console_col &= ~0x0007;
if (console_col >= CONSOLE_COLS)
console_newline(1);
break;
case 8: /* backspace */
console_back();
break;
case 7: /* bell */
break; /* ignored */
default: /* draw the char */
video_putchar(console_col * VIDEO_FONT_WIDTH,
console_row * VIDEO_FONT_HEIGHT, c);
console_col++;
/* check for newline */
if (console_col >= CONSOLE_COLS) {
console_newline(1);
nl = 0;
}
}
if (console_cursor_is_visible())
CURSOR_SET;
}
static void cfb_video_putc(struct stdio_dev *dev, const char c)
{
#ifdef CONFIG_CFB_CONSOLE_ANSI
int i;
if (c == 27) {
for (i = 0; i < ansi_buf_size; ++i)
parse_putc(ansi_buf[i]);
ansi_buf[0] = 27;
ansi_buf_size = 1;
return;
}
if (ansi_buf_size > 0) {
/*
* 0 - ESC
* 1 - [
* 2 - num1
* 3 - ..
* 4 - ;
* 5 - num2
* 6 - ..
* - cchar
*/
int next = 0;
int flush = 0;
int fail = 0;
int num1 = 0;
int num2 = 0;
int cchar = 0;
ansi_buf[ansi_buf_size++] = c;
if (ansi_buf_size >= sizeof(ansi_buf))
fail = 1;
for (i = 0; i < ansi_buf_size; ++i) {
if (fail)
break;
switch (next) {
case 0:
if (ansi_buf[i] == 27)
next = 1;
else
fail = 1;
break;
case 1:
if (ansi_buf[i] == '[')
next = 2;
else
fail = 1;
break;
case 2:
if (ansi_buf[i] >= '0' && ansi_buf[i] <= '9') {
num1 = ansi_buf[i]-'0';
next = 3;
} else if (ansi_buf[i] != '?') {
--i;
num1 = 1;
next = 4;
}
break;
case 3:
if (ansi_buf[i] >= '0' && ansi_buf[i] <= '9') {
num1 *= 10;
num1 += ansi_buf[i]-'0';
} else {
--i;
next = 4;
}
break;
case 4:
if (ansi_buf[i] != ';') {
--i;
next = 7;
} else
next = 5;
break;
case 5:
if (ansi_buf[i] >= '0' && ansi_buf[i] <= '9') {
num2 = ansi_buf[i]-'0';
next = 6;
} else
fail = 1;
break;
case 6:
if (ansi_buf[i] >= '0' && ansi_buf[i] <= '9') {
num2 *= 10;
num2 += ansi_buf[i]-'0';
} else {
--i;
next = 7;
}
break;
case 7:
if ((ansi_buf[i] >= 'A' && ansi_buf[i] <= 'H')
|| ansi_buf[i] == 'J'
|| ansi_buf[i] == 'K'
|| ansi_buf[i] == 'h'
|| ansi_buf[i] == 'l'
|| ansi_buf[i] == 'm') {
cchar = ansi_buf[i];
flush = 1;
} else
fail = 1;
break;
}
}
if (fail) {
for (i = 0; i < ansi_buf_size; ++i)
parse_putc(ansi_buf[i]);
ansi_buf_size = 0;
return;
}
if (flush) {
if (!ansi_cursor_hidden)
CURSOR_OFF;
ansi_buf_size = 0;
switch (cchar) {
case 'A':
/* move cursor num1 rows up */
console_cursor_up(num1);
break;
case 'B':
/* move cursor num1 rows down */
console_cursor_down(num1);
break;
case 'C':
/* move cursor num1 columns forward */
console_cursor_right(num1);
break;
case 'D':
/* move cursor num1 columns back */
console_cursor_left(num1);
break;
case 'E':
/* move cursor num1 rows up at begin of row */
console_previousline(num1);
break;
case 'F':
/* move cursor num1 rows down at begin of row */
console_newline(num1);
break;
case 'G':
/* move cursor to column num1 */
console_cursor_set_position(-1, num1-1);
break;
case 'H':
/* move cursor to row num1, column num2 */
console_cursor_set_position(num1-1, num2-1);
break;
case 'J':
/* clear console and move cursor to 0, 0 */
console_clear();
console_cursor_set_position(0, 0);
break;
case 'K':
/* clear line */
if (num1 == 0)
console_clear_line(console_row,
console_col,
CONSOLE_COLS-1);
else if (num1 == 1)
console_clear_line(console_row,
0, console_col);
else
console_clear_line(console_row,
0, CONSOLE_COLS-1);
break;
case 'h':
ansi_cursor_hidden = 0;
break;