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sandbox: Add LCD driver

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Add a simple LCD driver which uses SDL to display the image. We update the
image regularly, while still providing for reasonable performance.

Adjust the common lcd code to support sandbox.

For command-line runs we do not want the LCD to be displayed, so add a
--show_lcd option to enable it.

Tested-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2014-02-27 13:26:19 -07:00
parent c34c0246a3
commit 7d95f2a329
12 changed files with 150 additions and 4 deletions
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21
common/lcd.c
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@@ -28,6 +28,8 @@
#include <watchdog.h>
#include <asm/unaligned.h>
#include <splash.h>
#include <asm/io.h>
#include <asm/unaligned.h>
#if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
defined(CONFIG_CPU_MONAHANS)
@@ -63,6 +65,10 @@
# endif
#endif
#ifdef CONFIG_SANDBOX
#include <asm/sdl.h>
#endif
#ifndef CONFIG_LCD_ALIGNMENT
#define CONFIG_LCD_ALIGNMENT PAGE_SIZE
#endif
@@ -144,6 +150,13 @@ void lcd_sync(void)
if (lcd_flush_dcache)
flush_dcache_range((u32)lcd_base,
(u32)(lcd_base + lcd_get_size(&line_length)));
#elif defined(CONFIG_SANDBOX) && defined(CONFIG_VIDEO_SANDBOX_SDL)
static ulong last_sync;
if (get_timer(last_sync) > 10) {
sandbox_sdl_sync(lcd_base);
last_sync = get_timer(0);
}
#endif
}
@@ -403,7 +416,7 @@ int drv_lcd_init(void)
struct stdio_dev lcddev;
int rc;
lcd_base = (void *) gd->fb_base;
lcd_base = map_sysmem(gd->fb_base, 0);
lcd_init(lcd_base); /* LCD initialization */
@@ -494,8 +507,8 @@ static int lcd_init(void *lcdbase)
* by setting up gd->fb_base. Check for this condition and fixup
* 'lcd_base' address.
*/
if ((unsigned long)lcdbase != gd->fb_base)
lcd_base = (void *)gd->fb_base;
if (map_to_sysmem(lcdbase) != gd->fb_base)
lcd_base = map_sysmem(gd->fb_base, 0);
debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
@@ -886,7 +899,7 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y)
ushort *cmap_base = NULL;
ushort i, j;
uchar *fb;
bmp_image_t *bmp=(bmp_image_t *)bmp_image;
bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0);
uchar *bmap;
ushort padded_width;
unsigned long width, height, byte_width;