diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/sunxi_display.c | 51 |
1 files changed, 39 insertions, 12 deletions
diff --git a/drivers/video/sunxi_display.c b/drivers/video/sunxi_display.c index 1868185..7c1ea8f 100644 --- a/drivers/video/sunxi_display.c +++ b/drivers/video/sunxi_display.c @@ -19,6 +19,7 @@ #include <fdtdec.h> #include <fdt_support.h> #include <i2c.h> +#include <malloc.h> #include <video_fb.h> #include "videomodes.h" #include "hitachi_tx18d42vm_lcd.h" @@ -51,6 +52,7 @@ struct sunxi_display { GraphicDevice graphic_device; enum sunxi_monitor monitor; unsigned int depth; + unsigned int fb_addr; unsigned int fb_size; } sunxi_display; @@ -1297,9 +1299,10 @@ void *video_hw_init(void) #ifdef CONFIG_VIDEO_HDMI int ret, hpd, hpd_delay, edid; #endif + int i, overscan_offset, overscan_x, overscan_y; + unsigned int fb_dma_addr; char mon[16]; char *lcd_mode = CONFIG_VIDEO_LCD_MODE; - int i; memset(&sunxi_display, 0, sizeof(struct sunxi_display)); @@ -1310,6 +1313,8 @@ void *video_hw_init(void) hpd_delay = video_get_option_int(options, "hpd_delay", 500); edid = video_get_option_int(options, "edid", 1); #endif + overscan_x = video_get_option_int(options, "overscan_x", -1); + overscan_y = video_get_option_int(options, "overscan_y", -1); sunxi_display.monitor = sunxi_get_default_mon(true); video_get_option_string(options, "monitor", mon, sizeof(mon), sunxi_get_mon_desc(sunxi_display.monitor)); @@ -1386,8 +1391,20 @@ void *video_hw_init(void) break; } + /* Yes these defaults are quite high, overscan on composite sucks... */ + if (overscan_x == -1) + overscan_x = sunxi_is_composite() ? 32 : 0; + if (overscan_y == -1) + overscan_y = sunxi_is_composite() ? 20 : 0; + sunxi_display.fb_size = (mode->xres * mode->yres * 4 + 0xfff) & ~0xfff; + overscan_offset = (overscan_y * mode->xres + overscan_x) * 4; + /* We want to keep the fb_base for simplefb page aligned, where as + * the sunxi dma engines will happily accept an unaligned address. */ + if (overscan_offset) + sunxi_display.fb_size += 0x1000; + if (sunxi_display.fb_size > CONFIG_SUNXI_MAX_FB_SIZE) { printf("Error need %dkB for fb, but only %dkB is reserved\n", sunxi_display.fb_size >> 10, @@ -1395,25 +1412,36 @@ void *video_hw_init(void) return NULL; } - printf("Setting up a %dx%d%s %s console\n", mode->xres, mode->yres, + printf("Setting up a %dx%d%s %s console (overscan %dx%d)\n", + mode->xres, mode->yres, (mode->vmode == FB_VMODE_INTERLACED) ? "i" : "", - sunxi_get_mon_desc(sunxi_display.monitor)); + sunxi_get_mon_desc(sunxi_display.monitor), + overscan_x, overscan_y); gd->fb_base = gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size - sunxi_display.fb_size; sunxi_engines_init(); - sunxi_mode_set(mode, gd->fb_base - CONFIG_SYS_SDRAM_BASE); + + fb_dma_addr = gd->fb_base - CONFIG_SYS_SDRAM_BASE; + sunxi_display.fb_addr = gd->fb_base; + if (overscan_offset) { + fb_dma_addr += 0x1000 - (overscan_offset & 0xfff); + sunxi_display.fb_addr += (overscan_offset + 0xfff) & ~0xfff; + memset((void *)gd->fb_base, 0, sunxi_display.fb_size); + flush_cache(gd->fb_base, sunxi_display.fb_size); + } + sunxi_mode_set(mode, fb_dma_addr); /* * These are the only members of this structure that are used. All the - * others are driver specific. There is nothing to decribe pitch or - * stride, but we are lucky with our hw. + * others are driver specific. The pitch is stored in plnSizeX. */ - graphic_device->frameAdrs = gd->fb_base; + graphic_device->frameAdrs = sunxi_display.fb_addr; graphic_device->gdfIndex = GDF_32BIT_X888RGB; graphic_device->gdfBytesPP = 4; - graphic_device->winSizeX = mode->xres; - graphic_device->winSizeY = mode->yres; + graphic_device->winSizeX = mode->xres - 2 * overscan_x; + graphic_device->winSizeY = mode->yres - 2 * overscan_y; + graphic_device->plnSizeX = mode->xres * graphic_device->gdfBytesPP; return graphic_device; } @@ -1490,10 +1518,9 @@ int sunxi_simplefb_setup(void *blob) return ret; } - ret = fdt_setup_simplefb_node(blob, offset, gd->fb_base, + ret = fdt_setup_simplefb_node(blob, offset, sunxi_display.fb_addr, graphic_device->winSizeX, graphic_device->winSizeY, - graphic_device->winSizeX * graphic_device->gdfBytesPP, - "x8r8g8b8"); + graphic_device->plnSizeX, "x8r8g8b8"); if (ret) eprintf("Cannot setup simplefb: Error setting properties\n"); |