/*
* Common LCD routines for supported CPUs
*
* (C) Copyright 2001-2002
* 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
*/
/************************************************************************/
/* ** HEADER FILES */
/************************************************************************/
/* #define DEBUG */
#include <config.h>
#include <common.h>
#include <command.h>
#include <version.h>
#include <stdarg.h>
#include <linux/types.h>
#include <devices.h>
#if defined(CONFIG_POST)
#include <post.h>
#endif
#include <lcd.h>
#include <watchdog.h>
#if defined(CONFIG_PXA250)
#include <asm/byteorder.h>
#endif
#if defined(CONFIG_MPC823)
#include <lcdvideo.h>
#endif
#ifdef CONFIG_LCD
/************************************************************************/
/* ** FONT DATA */
/************************************************************************/
#include <video_font.h> /* Get font data, width and height */
/************************************************************************/
/* ** LOGO DATA */
/************************************************************************/
#ifdef CONFIG_LCD_LOGO
# include <bmp_logo.h> /* Get logo data, width and height */
# if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET)
# error Default Color Map overlaps with Logo Color Map
# endif
#endif
DECLARE_GLOBAL_DATA_PTR;
ulong lcd_setmem (ulong addr);
static void lcd_drawchars (ushort x, ushort y, uchar *str, int count);
static inline void lcd_puts_xy (ushort x, ushort y, uchar *s);
static inline void lcd_putc_xy (ushort x, ushort y, uchar c);
static int lcd_init (void *lcdbase);
static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
extern void lcd_ctrl_init (void *lcdbase);
extern void lcd_enable (void);
static void *lcd_logo (void);
#if LCD_BPP == LCD_COLOR8
extern void lcd_setcolreg (ushort regno,
ushort red, ushort green, ushort blue);
#endif
#if LCD_BPP == LCD_MONOCHROME
extern void lcd_initcolregs (void);
#endif
static int lcd_getbgcolor (void);
static void lcd_setfgcolor (int color);
static void lcd_setbgcolor (int color);
char lcd_is_enabled = 0;
extern vidinfo_t panel_info;
#ifdef NOT_USED_SO_FAR
static void lcd_getcolreg (ushort regno,
ushort *red, ushort *green, ushort *blue);
static int lcd_getfgcolor (void);
#endif /* NOT_USED_SO_FAR */
/************************************************************************/
/*----------------------------------------------------------------------*/
static void console_scrollup (void)
{
#if 1
/* Copy up rows ignoring the first one */
memcpy (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE);
/* Clear the last one */
memset (CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE);
#else
/*
* Poor attempt to optimize speed by moving "long"s.
* But the code is ugly, and not a bit faster :-(
*/
ulong *t = (ulong *)CONSOLE_ROW_FIRST;
ulong *s = (ulong *)CONSOLE_ROW_SECOND;
ulong l = CONSOLE_SCROLL_SIZE / sizeof(ulong);
uchar c = lcd_color_bg & 0xFF;
ulong val= (c<<24) | (c<<16) | (c<<8) | c;
while (l--)
*t++ = *s++;
t = (ulong *)CONSOLE_ROW_LAST;
l = CONSOLE_ROW_SIZE / sizeof(ulong);
while (l-- > 0)
*t++ = val;
#endif
}
/*----------------------------------------------------------------------*/
static inline void console_back (void)
{
if (--console_col < 0) {
console_col = CONSOLE_COLS-1 ;
if (--console_row < 0) {
console_row = 0;
}
}
lcd_putc_xy (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 () ;
--console_row;
}
}
/*----------------------------------------------------------------------*/
void lcd_putc (const char c)
{
if (!lcd_is_enabled) {
serial_putc(c);
return;
}
switch (c) {
case '\r': console_col = 0;
return;
case '\n': console_newline();
return;
case '\t': /* Tab (8 chars alignment) */
console_col |= 8;
console_col &= ~7;
if (console_col >= CONSOLE_COLS) {
console_newline();
}
return;
case '\b': console_back();
return;
default: lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
console_row * VIDEO_FONT_HEIGHT,
c);
if (++console_col >= CONSOLE_COLS) {
console_newline();
}
return;
}
/* NOTREACHED */
}
/*----------------------------------------------------------------------*/
void lcd_puts (const char *s)
{
if (!lcd_is_enabled) {
serial_puts (s);
return;
}
while (*s) {
lcd_putc (*s++);
}
}
/************************************************************************/
/* ** Low-Level Graphics Routines */
/************************************************************************/
static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
{
uchar *dest;
ushort off, row;
dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
off = x * (1 << LCD_BPP) % 8;
for (row=0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) {
uchar *s = str;
uchar *d = dest;
int i;
#if LCD_BPP == LCD_MONOCHROME
uchar rest = *d & -(1 << (8-off));
uchar sym;
#endif
for (i=0; i<count; ++i) {
uchar c, bits;
c = *s++;
bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
#if LCD_BPP == LCD_MONOCHROME
sym = (COLOR_MASK(lcd_color_fg) & bits) |
(COLOR_MASK(lcd_color_bg) & ~bits);
*d++ = rest | (sym >> off);
rest = sym << (8-off);
#elif LCD_BPP == LCD_COLOR8
for (c=0; c<8; ++c) {
*d++ = (bits & 0x80) ?
lcd_color_fg : lcd_color_bg;
bits <<= 1;
}
#elif LCD_BPP == LCD_COLOR16
for (c=0; c<16; ++c) {
*d++ = (bits & 0x80) ?
lcd_color_fg : lcd_color_bg;
bits <<= 1;
}
#endif
}
#if LCD_BPP == LCD_MONOCHROME
*d = rest | (*d & ((1 << (8-off)) - 1));
#endif
}
}
/*----------------------------------------------------------------------*/
static inline void lcd_puts_xy (ushort x, ushort y, uchar *s)
{
#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
lcd_drawchars (x, y+BMP_LOGO_HEIGHT, s, strlen ((char *)s));
#else
lcd_drawchars (x, y, s, strlen ((char *)s));
#endif
}
/*----------------------------------------------------------------------*/
static inline void lcd_putc_xy (ushort x, ushort y, uchar c)
{
#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
lcd_drawchars (x, y+BMP_LOGO_HEIGHT, &c, 1);
#else
lcd_drawchars (x, y, &c, 1);
#endif
}
/************************************************************************/
/** Small utility to check that you got the colours right */
/************************************************************************/
#ifdef LCD_TEST_PATTERN
#define N_BLK_VERT 2
#define N_BLK_HOR 3
static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW,
CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN,
};
static void test_pattern (void)
{
ushort v_max = panel_info.vl_row;
ushort h_max = panel_info.vl_col;
ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR;
ushort v, h;
uchar *pix = (uchar *)lcd_base;
printf ("[LCD] Test Pattern: %d x %d [%d x %d]\n",
h_max, v_max, h_step, v_step);
/* WARNING: Code silently assumes 8bit/pixel */
for (v=0; v<v_max; ++v) {
uchar iy = v / v_step;
for (h=0; h<h_max; ++h) {
uchar ix = N_BLK_HOR * iy + (h/h_step);
*pix++ = test_colors[ix];
}
}
}
#endif /* LCD_TEST_PATTERN */
/************************************************************************/
/* ** GENERIC Initialization Routines */
/************************************************************************/
int drv_lcd_init (void)
{
device_t lcddev;
int rc;
lcd_base = (void *)(gd->fb_base);
lcd_line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
lcd_init (lcd_base); /* LCD initialization */
/* Device initialization */
memset (&lcddev, 0, sizeof (lcddev));
strcpy (lcddev.name, "lcd");
lcddev.ext = 0; /* No extensions */
lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */
lcddev.putc = lcd_putc; /* 'putc' function */
lcddev.puts = lcd_puts; /* 'puts' function */
rc = device_register (&lcddev);
return (rc == 0) ? 1 : rc;
}
/*----------------------------------------------------------------------*/
static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
#if LCD_BPP == LCD_MONOCHROME
/* Setting the palette */
lcd_initcolregs();
#elif LCD_BPP == LCD_COLOR8
/* Setting the palette */
lcd_setcolreg (CONSOLE_COLOR_BLACK, 0, 0, 0);
lcd_setcolreg (CONSOLE_COLOR_RED, 0xFF, 0, 0);
lcd_setcolreg (CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
lcd_setcolreg (CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
lcd_setcolreg (CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
lcd_setcolreg (CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
lcd_setcolreg (CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
lcd_setcolreg (CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
lcd_setcolreg (CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
#endif
#ifndef CFG_WHITE_ON_BLACK
lcd_setfgcolor (CONSOLE_COLOR_BLACK);
lcd_setbgcolor (CONSOLE_COLOR_WHITE);
#else
lcd_setfgcolor (CONSOLE_COLOR_WHITE);
lcd_setbgcolor (CONSOLE_COLOR_BLACK);
#endif /* CFG_WHITE_ON_BLACK */
#ifdef LCD_TEST_PATTERN
test_pattern();
#else
/* set framebuffer to background color */
memset ((char *)lcd_base,
COLOR_MASK(lcd_getbgcolor()),
lcd_line_length*panel_info.vl_row);
#endif
/* Paint the logo and retrieve LCD base address */
debug ("[LCD] Drawing the logo...\n");
lcd_console_address = lcd_logo ();
console_col = 0;
console_row = 0;
return (0);
}
U_BOOT_CMD(
cls, 1, 1, lcd_clear,
"cls - clear screen\n",
NULL
);
/*----------------------------------------------------------------------*/
static int lcd_init (void *lcdbase)
{
/* Initialize the lcd controller */
debug ("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
lcd_ctrl_init (lcdbase);
lcd_clear (NULL, 1, 1, NULL); /* dummy args */
lcd_enable ();
/* Initialize the console */
console_col = 0;
#ifdef CONFIG_LCD_INFO_BELOW_LOGO
console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
#else
console_row = 1; /* leave 1 blank line below logo */
#endif
lcd_is_enabled = 1;
return 0;
}
/************************************************************************/
/* ** ROM capable initialization part - needed to reserve FB memory */
/************************************************************************/
/*
* This is called early in the system initialization to grab memory
* for the LCD controller.
* Returns new address for monitor, after reserving LCD buffer memory
*
* Note that this is running from ROM, so no write access to global data.
*/
ulong lcd_setmem (ulong addr)
{
ulong size;
int line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
debug ("LCD panel info: %d x %d, %d bit/pix\n",
panel_info.vl_col, panel_info.vl_row, NBITS (panel_info.vl_bpix) );
size = line_length * panel_info.vl_row;
/* Round up to nearest full page */
size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
/* Allocate pages for the frame buffer. */
addr -= size;
debug ("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
return (addr);
}
/*----------------------------------------------------------------------*/
static void lcd_setfgcolor (int color)
{
lcd_color_fg = color & 0x0F;
}
/*----------------------------------------------------------------------*/
static void lcd_setbgcolor (int color)
{
lcd_color_bg = color & 0x0F;
}
/*----------------------------------------------------------------------*/
#ifdef NOT_USED_SO_FAR
static int lcd_getfgcolor (void)
{
return lcd_color_fg;
}
#endif /* NOT_USED_SO_FAR */
/*----------------------------------------------------------------------*/
static int lcd_getbgcolor (void)
{
return lcd_color_bg;
}
/*----------------------------------------------------------------------*/
/************************************************************************/
/* ** Chipset depending Bitmap / Logo stuff... */
/************************************************************************/
#ifdef CONFIG_LCD_LOGO
void bitmap_plot (int x, int y)
{
ushort *cmap;
ushort i, j;
uchar *bmap;
uchar *fb;
ushort *fb16;
#if defined(CONFIG_PXA250)
struct pxafb_info *fbi = &panel_info.pxa;
#elif defined(CONFIG_MPC823)
volatile immap_t *immr = (immap_t *) CFG_IMMR;
volatile cpm8xx_t *cp = &(immr->im_cpm);
#endif
debug ("Logo: width %d height %d colors %d cmap %d\n",
BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
sizeof(bmp_logo_palette)/(sizeof(ushort)));
bmap = &bmp_logo_bitmap[0];
fb = (uchar *)(lcd_base + y * lcd_line_length + x);
if (NBITS(panel_info.vl_bpix) < 12) {
/* Leave room for default color map */
#if defined(CONFIG_PXA250)
cmap = (ushort *)fbi->palette;
#elif defined(CONFIG_MPC823)
cmap = (ushort *)&(cp->lcd_cmap[BMP_LOGO_OFFSET*sizeof(ushort)]);
#endif
WATCHDOG_RESET();
/* Set color map */
for (i=0; i<(sizeof(bmp_logo_palette)/(sizeof(ushort))); ++i) {
ushort colreg = bmp_logo_palette[i];
#ifdef CFG_INVERT_COLORS
*cmap++ = 0xffff - colreg;
#else
*cmap++ = colreg;
#endif
}
WATCHDOG_RESET();
for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
memcpy (fb, bmap, BMP_LOGO_WIDTH);
bmap += BMP_LOGO_WIDTH;
fb += panel_info.vl_col;
}
}
else { /* true color mode */
fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
for (j=0; j<BMP_LOGO_WIDTH; j++) {
fb16[j] = bmp_logo_palette[(bmap[j])];
}
bmap += BMP_LOGO_WIDTH;
fb16 += panel_info.vl_col;
}
}
WATCHDOG_RESET();
}
#endif /* CONFIG_LCD_LOGO */
/*----------------------------------------------------------------------*/
#if (CONFIG_COMMANDS & CFG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
/*
* Display the BMP file located at address bmp_image.
* Only uncompressed.
*/
int lcd_display_bitmap(ulong bmp_image, int x, int y)
{
ushort *cmap;
ushort i, j;
uchar *fb;
bmp_image_t *bmp=(bmp_image_t *)bmp_image;
uchar *bmap;
ushort padded_line;
unsigned long width, height;
unsigned long pwidth = panel_info.vl_col;
unsigned colors,bpix;
unsigned long compression;
#if defined(CONFIG_PXA250)
struct pxafb_info *fbi = &panel_info.pxa;
#elif defined(CONFIG_MPC823)
volatile immap_t *immr = (immap_t *) CFG_IMMR;
volatile cpm8xx_t *cp = &(immr->im_cpm);
#endif
if (!((bmp->header.signature[0]=='B') &&
(bmp->header.signature[1]=='M'))) {
printf ("Error: no valid bmp image at %lx\n", bmp_image);
return 1;
}
width = le32_to_cpu (bmp->header.width);
height = le32_to_cpu (bmp->header.height);
colors = 1<<le16_to_cpu (bmp->header.bit_count);
compression = le32_to_cpu (bmp->header.compression);
bpix = NBITS(panel_info.vl_bpix);
if ((bpix != 1) && (bpix != 8)) {
printf ("Error: %d bit/pixel mode not supported by U-Boot\n",
bpix);
return 1;
}
if (bpix != le16_to_cpu(bmp->header.bit_count)) {
printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
bpix,
le16_to_cpu(bmp->header.bit_count));
return 1;
}
debug ("Display-bmp: %d x %d with %d colors\n",
(int)width, (int)height, (int)colors);
if (bpix==8) {
#if defined(CONFIG_PXA250)
cmap = (ushort *)fbi->palette;
#elif defined(CONFIG_MPC823)
cmap = (ushort *)&(cp->lcd_cmap[255*sizeof(ushort)]);
#elif defined(CONFIG_MCC200)
/* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
#else
# error "Don't know location of color map"
#endif
/* Set color map */
for (i=0; i<colors; ++i) {
bmp_color_table_entry_t cte = bmp->color_table[i];
ushort colreg =
( ((cte.red) << 8) & 0xf800) |
( ((cte.green) << 3) & 0x07e0) |
( ((cte.blue) >> 3) & 0x001f) ;
#ifdef CFG_INVERT_COLORS
*cmap = 0xffff - colreg;
#else
*cmap = colreg;
#endif
#if defined(CONFIG_PXA250)
cmap++;
#elif defined(CONFIG_MPC823)
cmap--;
#endif
}
}
/*
* BMP format for Monochrome assumes that the state of a
* pixel is described on a per Bit basis, not per Byte.
* So, in case of Monochrome BMP we should align widths
* on a byte boundary and convert them from Bit to Byte
* units.
* Probably, PXA250 and MPC823 process 1bpp BMP images in
* their own ways, so make the converting to be MCC200
* specific.
*/
#if defined(CONFIG_MCC200)
if (bpix==1)
{
width = ((width + 7) & ~7) >> 3;
x = ((x + 7) & ~7) >> 3;
pwidth= ((pwidth + 7) & ~7) >> 3;
}
#endif
padded_line = (width&0x3) ? ((width&~0x3)+4) : (width);
if ((x + width)>pwidth)
width = pwidth - x;
if ((y + height)>panel_info.vl_row)
height = panel_info.vl_row - y;
bmap = (uchar *)bmp + le32_to_cpu (bmp->header.data_offset);
fb = (uchar *) (lcd_base +
(y + height - 1) * lcd_line_length + x);
for (i = 0; i < height; ++i) {
WATCHDOG_RESET();
for (j = 0; j < width ; j++)
#if defined(CONFIG_PXA250)
*(fb++)=*(bmap++);
#elif defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
*(fb++)=255-*(bmap++);
#endif
bmap += (width - padded_line);
fb -= (width + lcd_line_length);
}
return (0);
}
#endif /* (CONFIG_COMMANDS & CFG_CMD_BMP) || CONFIG_SPLASH_SCREEN */
static void *lcd_logo (void)
{
#ifdef CONFIG_LCD_INFO
char info[80];
char temp[32];
#endif /* CONFIG_LCD_INFO */
#ifdef CONFIG_SPLASH_SCREEN
char *s;
ulong addr;
static int do_splash = 1;
if (do_splash && (s = getenv("splashimage")) != NULL) {
addr = simple_strtoul(s, NULL, 16);
do_splash = 0;
if (lcd_display_bitmap (addr, 0, 0) == 0) {
return ((void *)lcd_base);
}
}
#endif /* CONFIG_SPLASH_SCREEN */
#ifdef CONFIG_LCD_LOGO
bitmap_plot (0, 0);
#endif /* CONFIG_LCD_LOGO */
#ifdef CONFIG_MPC823
# ifdef CONFIG_LCD_INFO
sprintf (info, "%s (%s - %s) ", U_BOOT_VERSION, __DATE__, __TIME__);
lcd_drawchars (LCD_INFO_X, LCD_INFO_Y, (uchar *)info, strlen(info));
sprintf (info, "(C) 2004 DENX Software Engineering");
lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT,
(uchar *)info, strlen(info));
sprintf (info, " Wolfgang DENK, wd@denx.de");
lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT * 2,
(uchar *)info, strlen(info));
# ifdef CONFIG_LCD_INFO_BELOW_LOGO
sprintf (info, "MPC823 CPU at %s MHz",
strmhz(temp, gd->cpu_clk));
lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT * 3,
info, strlen(info));
sprintf (info, " %ld MB RAM, %ld MB Flash",
gd->ram_size >> 20,
gd->bd->bi_flashsize >> 20 );
lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT * 4,
info, strlen(info));
# else
/* leave one blank line */
sprintf (info, "MPC823 CPU at %s MHz, %ld MB RAM, %ld MB Flash",
strmhz(temp, gd->cpu_clk),
gd->ram_size >> 20,
gd->bd->bi_flashsize >> 20 );
lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT * 4,
(uchar *)info, strlen(info));
# endif /* CONFIG_LCD_INFO_BELOW_LOGO */
# endif /* CONFIG_LCD_INFO */
#endif /* CONFIG_MPC823 */
#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
return ((void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length));
#else
return ((void *)lcd_base);
#endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
}
/************************************************************************/
/************************************************************************/
#endif /* CONFIG_LCD */
