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#define MOD_NAME "gfx"
#include <stdio.h>
#include "gfx.h"
#include "gfx_regmap.h"
#include "log.h"
#include "sgdma.h"
enum gfx_probe_result gfx_probe(void)
{
log("probing 0x%08x", GFX_CTRL_BASE);
unsigned magic = GFX_CTRL_MAGIC;
log("magic=0x%08x", magic);
if (magic != GFX_MAGIC_ID) {
log("bad magic");
return GFX_PROBE_FAILED;
}
log("magic ok");
struct gfx_hw_id hw_id = GFX_CTRL_HW_ID;
struct gfx_fw_id fw_id = GFX_CTRL_FW_ID;
unsigned hostif_rev = GFX_CTRL_HOSTIF_REV;
log
(
"3D graphics accelerator IP core v%u.%u.%u",
hw_id.major, hw_id.minor, hw_id.patch
);
log
(
"%s rev %04u.%02u.%02u #%u",
hostif_rev ? "firmware" : "bootloader",
fw_id.year, fw_id.month, fw_id.day, fw_id.build
);
switch (hostif_rev) {
case 0:
return GFX_PROBE_BOOTROM;
case 1:
log("found regmap revision %u", hostif_rev);
return GFX_PROBE_FIRMWARE;
default:
log("unknown regmap revision %u", hostif_rev);
return GFX_PROBE_FAILED;
}
}
int gfx_fw_load(const void *image, size_t image_len)
{
log("uploading fw image (len=%zu)", image_len);
sgdma_memcpy(GFX_VRAM_BASE, image, image_len);
sgdma_barrier();
*(void *volatile *)&GFX_CTRL_FW_ID = GFX_VRAM_BASE;
return 0;
}
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