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Sourcecode: linux-2.6 version File versions  Download package

fb.c

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/bootmem.h>

#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/mach-types.h>
#include <asm/mach/map.h>

#include <asm/arch/board.h>
#include <asm/arch/sram.h>
#include <asm/arch/omapfb.h>

#if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE)

static struct omapfb_platform_data omapfb_config;

static u64 omap_fb_dma_mask = ~(u32)0;

static struct platform_device omap_fb_device = {
      .name       = "omapfb",
      .id         = -1,
      .dev = {
            .dma_mask         = &omap_fb_dma_mask,
            .coherent_dma_mask      = ~(u32)0,
            .platform_data          = &omapfb_config,
      },
      .num_resources = 0,
};

/* called from map_io */
void omapfb_reserve_mem(void)
{
      const struct omap_fbmem_config *fbmem_conf;

      omapfb_config.fbmem.fb_sram_start = omap_fb_sram_start;
      omapfb_config.fbmem.fb_sram_size = omap_fb_sram_size;

      fbmem_conf = omap_get_config(OMAP_TAG_FBMEM, struct omap_fbmem_config);

      if (fbmem_conf != NULL) {
            /* indicate that the bootloader already initialized the
             * fb device, so we'll skip that part in the fb driver
             */
            omapfb_config.fbmem.fb_sdram_start = fbmem_conf->fb_sdram_start;
            omapfb_config.fbmem.fb_sdram_size = fbmem_conf->fb_sdram_size;
            if (fbmem_conf->fb_sdram_size) {
                  pr_info("Reserving %u bytes SDRAM for frame buffer\n",
                        fbmem_conf->fb_sdram_size);
                  reserve_bootmem(fbmem_conf->fb_sdram_start,
                              fbmem_conf->fb_sdram_size);
            }
      }
}

static inline int omap_init_fb(void)
{
      const struct omap_lcd_config *conf;

      conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
      if (conf == NULL)
            return 0;

      omapfb_config.lcd = *conf;

      return platform_device_register(&omap_fb_device);
}

arch_initcall(omap_init_fb);

#else

void omapfb_reserve_mem(void) {}

#endif



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