#include <common.h>
#include <command.h>
#include <stdarg.h>
+#include <search.h>
+#include <env_callback.h>
#include <linux/types.h>
#include <stdio_dev.h>
#if defined(CONFIG_POST)
# endif
#endif
+#ifndef CONFIG_LCD_ALIGNMENT
+#define CONFIG_LCD_ALIGNMENT PAGE_SIZE
+#endif
+
+/* By default we scroll by a single line */
+#ifndef CONFIG_CONSOLE_SCROLL_LINES
+#define CONFIG_CONSOLE_SCROLL_LINES 1
+#endif
+
DECLARE_GLOBAL_DATA_PTR;
ulong lcd_setmem (ulong addr);
char lcd_is_enabled = 0;
+static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */
+
+
#ifdef NOT_USED_SO_FAR
static void lcd_getcolreg(ushort regno,
ushort *red, ushort *green, ushort *blue);
/************************************************************************/
+/* Flush LCD activity to the caches */
+void lcd_sync(void)
+{
+ /*
+ * flush_dcache_range() is declared in common.h but it seems that some
+ * architectures do not actually implement it. Is there a way to find
+ * out whether it exists? For now, ARM is safe.
+ */
+#if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF)
+ int line_length;
+
+ if (lcd_flush_dcache)
+ flush_dcache_range((u32)lcd_base,
+ (u32)(lcd_base + lcd_get_size(&line_length)));
+#endif
+}
+
+void lcd_set_flush_dcache(int flush)
+{
+ lcd_flush_dcache = (flush != 0);
+}
+
/*----------------------------------------------------------------------*/
static void console_scrollup(void)
{
- /* Copy up rows ignoring the first one */
- memcpy(CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE);
+ const int rows = CONFIG_CONSOLE_SCROLL_LINES;
+
+ /* Copy up rows ignoring those that will be overwritten */
+ memcpy(CONSOLE_ROW_FIRST,
+ lcd_console_address + CONSOLE_ROW_SIZE * rows,
+ CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows);
- /* Clear the last one */
- memset(CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE);
+ /* Clear the last rows */
+ memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows,
+ COLOR_MASK(lcd_color_bg),
+ CONSOLE_ROW_SIZE * rows);
+
+ lcd_sync();
+ console_row -= rows;
}
/*----------------------------------------------------------------------*/
if (console_row >= CONSOLE_ROWS) {
/* Scroll everything up */
console_scrollup();
- --console_row;
+ } else {
+ lcd_sync();
}
}
while (*s) {
lcd_putc(*s++);
}
+ lcd_sync();
}
/*----------------------------------------------------------------------*/
/* ** GENERIC Initialization Routines */
/************************************************************************/
+int lcd_get_size(int *line_length)
+{
+ *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
+ return *line_length * panel_info.vl_row;
+}
+
int drv_lcd_init (void)
{
struct stdio_dev lcddev;
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 */
}
/*----------------------------------------------------------------------*/
-static
-int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
-{
- lcd_clear();
- return 0;
-}
-
void lcd_clear(void)
{
#if LCD_BPP == LCD_MONOCHROME
console_col = 0;
console_row = 0;
+ lcd_sync();
+}
+
+static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ lcd_clear();
+ return 0;
}
U_BOOT_CMD(
debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
lcd_ctrl_init(lcdbase);
+ lcd_get_size(&lcd_line_length);
+ lcd_line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
lcd_is_enabled = 1;
lcd_clear();
lcd_enable ();
ulong lcd_setmem(ulong addr)
{
ulong size;
- int line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
+ int line_length;
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;
+ size = lcd_get_size(&line_length);
- /* Round up to nearest full page */
- size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
+ /* Round up to nearest full page, or MMU section if defined */
+ size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
+ addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
/* Allocate pages for the frame buffer. */
addr -= size;
}
WATCHDOG_RESET();
+ lcd_sync();
}
#else
static inline void bitmap_plot(int x, int y) {}
}
/* We support displaying 8bpp BMPs on 16bpp LCDs */
- if (bpix != bmp_bpix && (bmp_bpix != 8 || bpix != 16 || bpix != 32)) {
+ if (bpix != bmp_bpix && !(bmp_bpix == 8 && bpix == 16)) {
printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
bpix,
le16_to_cpu(bmp->header.bit_count));
break;
};
+ lcd_sync();
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_SPLASH_SCREEN_PREPARE
+static inline int splash_screen_prepare(void)
+{
+ return board_splash_screen_prepare();
+}
+#else
+static inline int splash_screen_prepare(void)
+{
return 0;
}
#endif
int x = 0, y = 0;
do_splash = 0;
+ if (splash_screen_prepare())
+ return (void *)gd->fb_base;
+
addr = simple_strtoul (s, NULL, 16);
#ifdef CONFIG_SPLASH_SCREEN_ALIGN
s = getenv("splashpos");
#endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
}
+#ifdef CONFIG_SPLASHIMAGE_GUARD
+static int on_splashimage(const char *name, const char *value, enum env_op op,
+ int flags)
+{
+ ulong addr;
+ int aligned;
+
+ if (op == env_op_delete)
+ return 0;
+
+ addr = simple_strtoul(value, NULL, 16);
+ /* See README.displaying-bmps */
+ aligned = (addr % 4 == 2);
+ if (!aligned) {
+ printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
+#endif
+
void lcd_position_cursor(unsigned col, unsigned row)
{
console_col = min(col, CONSOLE_COLS - 1);
projects / platform / kernel / u-boot.git / blobdiff