/*
* (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 1
#include <config.h>
#include <common.h>
#include <version.h>
#include <stdarg.h>
#include <lcdvideo.h>
#include <linux/types.h>
#include <devices.h>
#include <asm/arch/pxa-regs.h>
#ifdef CONFIG_LCD
/************************************************************************/
/* ** CONFIG STUFF -- should be moved to board config file */
/************************************************************************/
#ifndef CONFIG_EDT32F10
#define CONFIG_LCD_LOGO
#define LCD_INFO /* Display Logo, (C) and system info */
#endif
#ifdef CONFIG_V37
#undef CONFIG_LCD_LOGO
#undef LCD_INFO
#endif
#undef CONFIG_LCD_LOGO
#define LCD_TEST_PATTERN
/* #define LCD_TEST_PATTERN */ /* color backgnd for frame/color adjust */
/* #define CFG_INVERT_COLORS */ /* Not needed - adjust vl_dp instead */
/************************************************************************/
/************************************************************************/
/* ** FONT AND LOGO DATA */
/************************************************************************/
#include <video_font.h> /* Get font data, width and height */
#ifdef CONFIG_LCD_LOGO
# include <bmp_nexus.h> /* Get logo data, width and height */
#endif
/************************************************************************/
/************************************************************************/
/*
* Information about displays we are using. This is for configuring
* the LCD controller and memory allocation. Someone has to know what
* is connected, as we can't autodetect anything.
*/
#define CFG_HIGH 0 /* Pins are active high */
#define CFG_LOW 1 /* Pins are active low */
/* PXA LCD DMA descriptor */
struct pxafb_dma_descriptor {
u_long fdadr;
u_long fsadr;
u_long fidr;
u_long ldcmd;
};
/* PXA LCD info */
struct pxafb_info {
/* Misc registers */
u_long reg_lccr3;
u_long reg_lccr2;
u_long reg_lccr1;
u_long reg_lccr0;
u_long fdadr0;
u_long fdadr1;
/* DMA descriptors */
struct pxafb_dma_descriptor * dmadesc_fblow;
struct pxafb_dma_descriptor * dmadesc_fbhigh;
struct pxafb_dma_descriptor * dmadesc_palette;
u_long screen; /* physical address of frame buffer */
u_long palette; /* physical address of palette memory */
u_int palette_size;
};
typedef struct vidinfo {
ushort vl_col; /* Number of columns (i.e. 640) */
ushort vl_row; /* Number of rows (i.e. 480) */
ushort vl_width; /* Width of display area in millimeters */
ushort vl_height; /* Height of display area in millimeters */
/* LCD configuration register.
*/
u_char vl_clkp; /* Clock polarity */
u_char vl_oep; /* Output Enable polarity */
u_char vl_hsp; /* Horizontal Sync polarity */
u_char vl_vsp; /* Vertical Sync polarity */
u_char vl_dp; /* Data polarity */
u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */
u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */
u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */
u_char vl_clor; /* Color, 0 = mono, 1 = color */
u_char vl_tft; /* 0 = passive, 1 = TFT */
/* Horizontal control register. Timing from data sheet.
*/
ushort vl_hpw; /* Horz sync pulse width */
u_char vl_blw; /* Wait before of line */
u_char vl_elw; /* Wait end of line */
/* Vertical control register.
*/
u_char vl_vpw; /* Vertical sync pulse width */
u_char vl_bfw; /* Wait before of frame */
u_char vl_efw; /* Wait end of frame */
u_char vl_lcdac; /* LCD AC timing */
/* PXA LCD controller params
*/
struct pxafb_info pxa;
} vidinfo_t;
#define LCD_MONOCHROME 0
#define LCD_COLOR2 1
#define LCD_COLOR4 2
#define LCD_COLOR8 3
#define LCD_COLOR16 4
/*----------------------------------------------------------------------*/
#define CONFIG_PXA_VGA
#ifdef CONFIG_PXA_VGA
/*
* LCD outputs connected to a video DAC
*/
#define LCD_BPP LCD_COLOR8
/* you have to set lccr0 and lccr3 (including pcd) */
#define REG_LCCR0 0x003008f8
#define REG_LCCR3 0x0300FF01
/* 640x480x16 @ 61 Hz */
static vidinfo_t panel_info = {
vl_col: 640,
vl_row: 480,
vl_width: 640,
vl_height: 480,
vl_clkp: CFG_HIGH,
vl_oep: CFG_HIGH,
vl_hsp: CFG_HIGH,
vl_vsp: CFG_HIGH,
vl_dp: CFG_HIGH,
vl_bpix: LCD_BPP,
vl_lbw: 0,
vl_splt: 0,
vl_clor: 0,
vl_lcdac: 0,
vl_tft: 1,
vl_hpw: 40,
vl_blw: 56,
vl_elw: 56,
vl_vpw: 20,
vl_bfw: 8,
vl_efw: 8,
};
#endif /* CONFIG_PXA_VIDEO */
#ifdef CONFIG_SHARP_LM8V31
#define LCD_BPP LCD_COLOR8
#define LCD_INVERT_COLORS /* Needed for colors to be correct, but why? */
/* you have to set lccr0 and lccr3 (including pcd) */
#define REG_LCCR0 0x0030087C
#define REG_LCCR3 0x0340FF08
static vidinfo_t panel_info = {
vl_col: 640,
vl_row: 480,
vl_width: 157,
vl_height: 118,
vl_clkp: CFG_HIGH,
vl_oep: CFG_HIGH,
vl_hsp: CFG_HIGH,
vl_vsp: CFG_HIGH,
vl_dp: CFG_HIGH,
vl_bpix: LCD_BPP,
vl_lbw: 0,
vl_splt: 1,
vl_clor: 1,
vl_lcdac: 0,
vl_tft: 0,
vl_hpw: 1,
vl_blw: 3,
vl_elw: 3,
vl_vpw: 1,
vl_bfw: 0,
vl_efw: 0,
};
#endif /* CONFIG_SHARP_LM8V31 */
/*----------------------------------------------------------------------*/
/*----------------------------------------------------------------------*/
#if defined(LCD_INFO_BELOW_LOGO)
# define LCD_INFO_X 0
# define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT)
#elif defined(CONFIG_LCD_LOGO)
# define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH)
# define LCD_INFO_Y (VIDEO_FONT_HEIGHT)
#else
# define LCD_INFO_X (VIDEO_FONT_WIDTH)
# define LCD_INFO_Y (VIDEO_FONT_HEIGHT)
#endif
#ifndef LCD_BPP
#define LCD_BPP LCD_COLOR8
#endif
#ifndef LCD_DF
#define LCD_DF 1
#endif
#define NBITS(bit_code) (1 << (bit_code))
#define NCOLORS(bit_code) (1 << NBITS(bit_code))
static int lcd_line_length;
static int lcd_color_fg;
static int lcd_color_bg;
static char lcd_is_enabled = 0; /* Indicate that LCD is enabled */
/*
* Frame buffer memory information
*/
static void *lcd_base; /* Start of framebuffer memory */
static void *lcd_console_address; /* Start of console buffer */
/************************************************************************/
/* ** CONSOLE CONSTANTS */
/************************************************************************/
#if LCD_BPP == LCD_MONOCHROME
/*
* Simple color definitions
*/
#define CONSOLE_COLOR_BLACK 0
#define CONSOLE_COLOR_WHITE 1 /* Must remain last / highest */
#elif LCD_BPP == LCD_COLOR8
/*
* 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 14
#define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */
#else /* 16 bit */
#define CONSOLE_COLOR_BLACK 0x0000
#define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */
#endif
#if defined(CONFIG_LCD_LOGO) && (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET)
#error Default Color Map overlaps with Logo Color Map
#endif
/************************************************************************/
#ifndef PAGE_SIZE
#define PAGE_SIZE 4096
#endif
/************************************************************************/
/* ** CONSOLE DEFINITIONS & FUNCTIONS */
/************************************************************************/
#if defined(CONFIG_LCD_LOGO) && !defined(LCD_INFO_BELOW_LOGO)
#define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \
/ VIDEO_FONT_HEIGHT)
#else
#define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT)
#endif
#define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH)
#define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length)
#define CONSOLE_ROW_FIRST (lcd_console_address)
#define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE)
#define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \
- CONSOLE_ROW_SIZE)
#define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS)
#define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE)
#if LCD_BPP == LCD_MONOCHROME
#define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \
(c) << 4 | (c) << 5 | (c) << 6 | (c) << 7)
#elif LCD_BPP == LCD_COLOR8
#define COLOR_MASK(c) (c)
#elif LCD_BPP == LCD_COLOR16
#define COLOR_MASK(c) (c)
#else
#error Unsupported LCD BPP.
#endif
static short console_col;
static short console_row;
/************************************************************************/
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 void lcd_ctrl_init (void *lcdbase);
static void lcd_enable (void);
static void *lcd_logo (void);
#if LCD_BPP == LCD_COLOR8
static void lcd_setcolreg (ushort regno,
ushort red, ushort green, ushort blue);
#endif
#if LCD_BPP == LCD_MONOCHROME
static void lcd_initcolregs (void);
#endif
static void lcd_setfgcolor (int color);
static void lcd_setbgcolor (int color);
#ifdef NOT_USED_SO_FAR
static int lcd_getbgcolor (void);
static void lcd_disable (void);
static void lcd_getcolreg (ushort regno,
ushort *red, ushort *green, ushort *blue);
static int lcd_getfgcolor (void);
#endif /* NOT_USED_SO_FAR */
static int pxafb_init_mem(void *lcdbase, vidinfo_t *vid);
static void pxafb_setup_gpio(vidinfo_t *vid);
static void pxafb_enable_controller(vidinfo_t *vid);
static int pxafb_init(vidinfo_t *vid);
/************************************************************************/
/*----------------------------------------------------------------------*/
static void console_scrollup (void)
{
/* 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);
}
/*----------------------------------------------------------------------*/
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(LCD_INFO_BELOW_LOGO)
lcd_drawchars (x, y+BMP_LOGO_HEIGHT, s, strlen (s));
#else
lcd_drawchars (x, y, s, strlen (s));
#endif
}
/*----------------------------------------------------------------------*/
static inline void lcd_putc_xy (ushort x, ushort y, uchar c)
{
#if defined(CONFIG_LCD_LOGO) && !defined(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)
{
DECLARE_GLOBAL_DATA_PTR;
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_init (void *lcdbase)
{
/* Initialize the lcd controller */
debug ("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
lcd_ctrl_init (lcdbase);
#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
#define CFG_WHITE_ON_BLACK
#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
lcd_enable ();
/* Paint the logo and retrieve LCD base address */
debug ("[LCD] Drawing the logo...\n");
lcd_console_address = lcd_logo ();
/* Initialize the console */
console_col = 0;
#ifdef 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) );
/* extra page for dma descriptors and palette */
size = line_length * panel_info.vl_row + PAGE_SIZE;
/* 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);
}
/************************************************************************/
/* ----------------- chipset specific functions ----------------------- */
/************************************************************************/
static void lcd_ctrl_init (void *lcdbase)
{
pxafb_init_mem(lcdbase, &panel_info);
pxafb_init(&panel_info);
pxafb_setup_gpio(&panel_info);
pxafb_enable_controller(&panel_info);
}
/*----------------------------------------------------------------------*/
#ifdef NOT_USED_SO_FAR
static void
lcd_getcolreg (ushort regno, ushort *red, ushort *green, ushort *blue)
{
}
#endif /* NOT_USED_SO_FAR */
/*----------------------------------------------------------------------*/
#if LCD_BPP == LCD_COLOR8
static void
lcd_setcolreg (ushort regno, ushort red, ushort green, ushort blue)
{
struct pxafb_info *fbi = &panel_info.pxa;
unsigned short *palette = (unsigned short *)fbi->palette;
u_int val;
if (regno < fbi->palette_size) {
val = ((red << 8) & 0xf800);
val |= ((green << 4) & 0x07e0);
val |= (blue & 0x001f);
#ifdef LCD_INVERT_COLORS
palette[regno] = ~val;
#else
palette[regno] = ~val;
#endif
}
debug ("setcolreg: reg %2d @ %p: R=%02X G=%02X B=%02X => %04X\n",
regno, &palette[regno],
red, green, blue,
palette[regno]);
}
#endif /* LCD_COLOR8 */
/*----------------------------------------------------------------------*/
#if LCD_BPP == LCD_MONOCHROME
static
void lcd_initcolregs (void)
{
volatile immap_t *immr = (immap_t *) CFG_IMMR;
volatile cpm8xx_t *cp = &(immr->im_cpm);
ushort regno;
for (regno = 0; regno < 16; regno++) {
cp->lcd_cmap[regno * 2] = 0;
cp->lcd_cmap[(regno * 2) + 1] = regno & 0x0f;
}
}
#endif
/*----------------------------------------------------------------------*/
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 */
/*----------------------------------------------------------------------*/
#ifdef NOT_USED_SO_FAR
static int lcd_getbgcolor (void)
{
return lcd_color_bg;
}
#endif /* NOT_USED_SO_FAR */
/*----------------------------------------------------------------------*/
static void lcd_enable (void)
{
}
/*----------------------------------------------------------------------*/
#ifdef NOT_USED_SO_FAR
static void lcd_disable (void)
{
}
#endif /* NOT_USED_SO_FAR */
/************************************************************************/
/* ** Chipset depending Bitmap / Logo stuff... */
/************************************************************************/
#ifdef CONFIG_LCD_LOGO
static void bitmap_plot (int x, int y)
{
ushort *cmap;
ushort i;
uchar *bmap;
uchar *fb;
struct pxafb_info *fbi = &panel_info.pxa;
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))
);
/* Leave room for default color map */
cmap = (ushort *)fbi->palette;
/* Set color map */
for (i=0; i<(sizeof(bmp_logo_palette)/(sizeof(ushort))); ++i) {
ushort colreg = bmp_logo_palette[i];
#ifdef CFG_INVERT_COLORS
colreg ^= 0xFFF;
#endif
*cmap++ = colreg;
}
bmap = &bmp_logo_bitmap[0];
fb = (char *)(lcd_base + y * lcd_line_length + x);
for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
memcpy (fb, bmap, BMP_LOGO_WIDTH);
bmap += BMP_LOGO_WIDTH;
fb += panel_info.vl_col;
}
}
#endif /* CONFIG_LCD_LOGO */
/*----------------------------------------------------------------------*/
static void *lcd_logo (void)
{
#ifdef CONFIG_LCD_LOGO
DECLARE_GLOBAL_DATA_PTR;
char info[80];
char temp[32];
bitmap_plot (0, 0);
#endif /* CONFIG_LCD_LOGO */
#if defined(CONFIG_LCD_LOGO) && !defined(LCD_INFO_BELOW_LOGO)
return ((void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length));
#else
return ((void *)lcd_base);
#endif /* CONFIG_LCD_LOGO */
}
/************************************************************************
PXA255 specific routines
************************************************************************/
static int pxafb_init_mem(void *lcdbase, vidinfo_t *vid)
{
u_long palette_mem_size;
struct pxafb_info *fbi = &vid->pxa;
int fb_size = vid->vl_row * (vid->vl_col * NBITS (vid->vl_bpix)) / 8;
fbi->screen = (u_long)lcdbase;
fbi->palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16;
palette_mem_size = fbi->palette_size * sizeof(u16);
debug("palette_mem_size = 0x%08lx\n", (u_long) palette_mem_size);
/* locate palette and descs at end of page following fb */
fbi->palette = (u_long)lcdbase + fb_size + 2*PAGE_SIZE - palette_mem_size;
return 0;
}
static void pxafb_setup_gpio(vidinfo_t *vid)
{
u_long lccr0;
/*
* setup is based on type of panel supported
*/
lccr0 = vid->pxa.reg_lccr0;
/* 4 bit interface */
if ((lccr0 & LCCR0_CMS) && (lccr0 & LCCR0_SDS) && !(lccr0 & LCCR0_DPD))
{
debug("Setting GPIO for 4 bit data\n");
/* bits 58-61 */
GPDR1 |= (0xf << 26);
GAFR1_U = (GAFR1_U & ~(0xff << 20)) | (0xaa << 20);
/* bits 74-77 */
GPDR2 |= (0xf << 10);
GAFR2_L = (GAFR2_L & ~(0xff << 20)) | (0xaa << 20);
}
/* 8 bit interface */
else if (((lccr0 & LCCR0_CMS) && ((lccr0 & LCCR0_SDS) || (lccr0 & LCCR0_DPD))) ||
(!(lccr0 & LCCR0_CMS) && !(lccr0 & LCCR0_PAS) && !(lccr0 & LCCR0_SDS)))
{
debug("Setting GPIO for 8 bit data\n");
/* bits 58-65 */
GPDR1 |= (0x3f << 26);
GPDR2 |= (0x3);
GAFR1_U = (GAFR1_U & ~(0xfff << 20)) | (0xaaa << 20);
GAFR2_L = (GAFR2_L & ~0xf) | (0xa);
/* bits 74-77 */
GPDR2 |= (0xf << 10);
GAFR2_L = (GAFR2_L & ~(0xff << 20)) | (0xaa << 20);
}
/* 16 bit interface */
else if (!(lccr0 & LCCR0_CMS) && ((lccr0 & LCCR0_SDS) || (lccr0 & LCCR0_PAS)))
{
debug("Setting GPIO for 16 bit data\n");
/* bits 58-77 */
GPDR1 |= (0x3f << 26);
GPDR2 |= 0x00003fff;
GAFR1_U = (GAFR1_U & ~(0xfff << 20)) | (0xaaa << 20);
GAFR2_L = (GAFR2_L & 0xf0000000) | 0x0aaaaaaa;
}
else
{
printf("pxafb_setup_gpio: unable to determine bits per pixel\n");
}
}
static void pxafb_enable_controller(vidinfo_t *vid)
{
debug("Enabling LCD controller\n");
/* Sequence from 11.7.10 */
LCCR3 = vid->pxa.reg_lccr3;
LCCR2 = vid->pxa.reg_lccr2;
LCCR1 = vid->pxa.reg_lccr1;
LCCR0 = vid->pxa.reg_lccr0 & ~LCCR0_ENB;
FDADR0 = vid->pxa.fdadr0;
FDADR1 = vid->pxa.fdadr1;
LCCR0 |= LCCR0_ENB;
CKEN |= CKEN16_LCD;
debug("FDADR0 = 0x%08x\n", (unsigned int)FDADR0);
debug("FDADR1 = 0x%08x\n", (unsigned int)FDADR1);
debug("LCCR0 = 0x%08x\n", (unsigned int)LCCR0);
debug("LCCR1 = 0x%08x\n", (unsigned int)LCCR1);
debug("LCCR2 = 0x%08x\n", (unsigned int)LCCR2);
debug("LCCR3 = 0x%08x\n", (unsigned int)LCCR3);
}
static int pxafb_init(vidinfo_t *vid)
{
struct pxafb_info *fbi = &vid->pxa;
debug("Configuring PXA LCD\n");
fbi->reg_lccr0 = REG_LCCR0;
fbi->reg_lccr3 = REG_LCCR3;
debug("vid: vl_col=%d hslen=%d lm=%d rm=%d\n",
vid->vl_col, vid->vl_hpw,
vid->vl_blw, vid->vl_elw);
debug("vid: vl_row=%d vslen=%d um=%d bm=%d\n",
vid->vl_row, vid->vl_vpw,
vid->vl_bfw, vid->vl_efw);
fbi->reg_lccr1 =
LCCR1_DisWdth(vid->vl_col) +
LCCR1_HorSnchWdth(vid->vl_hpw) +
LCCR1_BegLnDel(vid->vl_blw) +
LCCR1_EndLnDel(vid->vl_elw);
fbi->reg_lccr2 =
LCCR2_DisHght(vid->vl_row) +
LCCR2_VrtSnchWdth(vid->vl_vpw) +
LCCR2_BegFrmDel(vid->vl_bfw) +
LCCR2_EndFrmDel(vid->vl_efw);
fbi->reg_lccr3 = REG_LCCR3 & ~(LCCR3_HSP | LCCR3_VSP);
fbi->reg_lccr3 |=
(vid->vl_hsp ? LCCR3_HorSnchL : LCCR3_HorSnchH)
| (vid->vl_vsp ? LCCR3_VrtSnchL : LCCR3_VrtSnchH);
/* setup dma descriptors */
fbi->dmadesc_fblow = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 3*16);
fbi->dmadesc_fbhigh = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 2*16);
fbi->dmadesc_palette = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 1*16);
#define BYTES_PER_PANEL ((fbi->reg_lccr0 & LCCR0_SDS) ? \
(vid->vl_col * vid->vl_row * NBITS(vid->vl_bpix) / 8 / 2) : \
(vid->vl_col * vid->vl_row * NBITS(vid->vl_bpix) / 8))
/* populate descriptors */
fbi->dmadesc_fblow->fdadr = (u_long)fbi->dmadesc_fblow;
fbi->dmadesc_fblow->fsadr = fbi->screen + BYTES_PER_PANEL;
fbi->dmadesc_fblow->fidr = 0;
fbi->dmadesc_fblow->ldcmd = BYTES_PER_PANEL;
fbi->fdadr1 = (u_long)fbi->dmadesc_fblow; /* only used in dual-panel mode */
fbi->dmadesc_fbhigh->fsadr = fbi->screen;
fbi->dmadesc_fbhigh->fidr = 0;
fbi->dmadesc_fbhigh->ldcmd = BYTES_PER_PANEL;
fbi->dmadesc_palette->fsadr = fbi->palette;
fbi->dmadesc_palette->fidr = 0;
fbi->dmadesc_palette->ldcmd = (fbi->palette_size * 2) | LDCMD_PAL;
if( NBITS(vid->vl_bpix) < 12)
{
/* assume any mode with <12 bpp is palette driven */
fbi->dmadesc_palette->fdadr = (u_long)fbi->dmadesc_fbhigh;
fbi->dmadesc_fbhigh->fdadr = (u_long)fbi->dmadesc_palette;
/* flips back and forth between pal and fbhigh */
fbi->fdadr0 = (u_long)fbi->dmadesc_palette;
}
else
{
/* palette shouldn't be loaded in true-color mode */
fbi->dmadesc_fbhigh->fdadr = (u_long)fbi->dmadesc_fbhigh;
fbi->fdadr0 = (u_long)fbi->dmadesc_fbhigh; /* no pal just fbhigh */
}
debug("fbi->dmadesc_fblow = 0x%lx\n", (u_long)fbi->dmadesc_fblow);
debug("fbi->dmadesc_fbhigh = 0x%lx\n", (u_long)fbi->dmadesc_fbhigh);
debug("fbi->dmadesc_palette = 0x%lx\n", (u_long)fbi->dmadesc_palette);
debug("fbi->dmadesc_fblow->fdadr = 0x%lx\n", fbi->dmadesc_fblow->fdadr);
debug("fbi->dmadesc_fbhigh->fdadr = 0x%lx\n", fbi->dmadesc_fbhigh->fdadr);
debug("fbi->dmadesc_palette->fdadr = 0x%lx\n", fbi->dmadesc_palette->fdadr);
debug("fbi->dmadesc_fblow->fsadr = 0x%lx\n", fbi->dmadesc_fblow->fsadr);
debug("fbi->dmadesc_fbhigh->fsadr = 0x%lx\n", fbi->dmadesc_fbhigh->fsadr);
debug("fbi->dmadesc_palette->fsadr = 0x%lx\n", fbi->dmadesc_palette->fsadr);
debug("fbi->dmadesc_fblow->ldcmd = 0x%lx\n", fbi->dmadesc_fblow->ldcmd);
debug("fbi->dmadesc_fbhigh->ldcmd = 0x%lx\n", fbi->dmadesc_fbhigh->ldcmd);
debug("fbi->dmadesc_palette->ldcmd = 0x%lx\n", fbi->dmadesc_palette->ldcmd);
return 0;
}
/************************************************************************/
/************************************************************************/
#endif /* CONFIG_LCD */
