Add PW-x1 direct FB draw application

x1/Makefile

@@ -46,3 +46,6 @@ injector/uboot.bin:
 	@./extract.py -p injector/disable_mmu.elf injector/disable_mmu.bin
 	@./extract.py -p injector/disable_mmu.elf injector/disable_mmu.bin
 	@./injector/inject.py 0xed0000 0x700000 injector/disable_mmu.bin u-boot.bin injector/uboot.bin
+samplefb/AppMain.bin:
+	@$(CC) -nostdlib -static -fPIC -marm -march=armv7-a+fp -O0 samplefb/main.c -o samplefb/AppMain.elf -T samplefb/linker.ld
+	@./extract.py -p samplefb/AppMain.elf  samplefb/AppMain.bin

x1/samplefb/linker.ld

@@ -0,0 +1,14 @@
+OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm",
+	      "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(main)
+
+SECTIONS
+{
+    .text 0x90000000:
+    {
+        *(.text.init)
+        *(.text)
+        *(.text.*)
+    }
+}

x1/samplefb/main.c

@@ -0,0 +1,39 @@
+#include "the_rookie.c"
+// hardware frame buffer size
+#define SCREEN_H 480
+#define SCREEN_V 640
+
+typedef void (*cache_invalidate_proc)(void *ptr,unsigned int size);
+typedef void (*sh_ExitApp_proc)(char *path);
+
+void cpy_rotate(unsigned short *dst,unsigned short *src);
+
+typedef struct{
+	void *reserved;
+	char *exec_path;
+	void *pPresent;
+	void *reserved2;
+} app_ctx;
+
+ __attribute__((section(".text.init"))) void main(app_ctx *ctx){
+	volatile char for_sleep=0;
+	sh_ExitApp_proc sh_ExitApp=(sh_ExitApp_proc)0x840e7a48;
+	cache_invalidate_proc cache_invalidate=(cache_invalidate_proc)0x600063d4;
+	volatile unsigned char *framebuffer = (unsigned char *)0x60a00008;
+	cpy_rotate((unsigned short *)framebuffer,(unsigned short*) GIMP_IMAGE_pixel_data);
+	cache_invalidate(0x60a00008,0x16c800);
+	*(unsigned int *)0x40aa0004 = 1;
+	for(int i=0;i<0x10000000;i++){
+		for_sleep++;
+	}
+	sh_ExitApp(ctx->exec_path);
+	return;
+}
+
+void cpy_rotate(unsigned short *dst,unsigned short *src){
+	for (int y = 0; y < 480; y++){
+		for (int x = 0; x < 640; x++){
+			dst[x * 480 + (479 - y)] = src[y * 640 + x];
+		}
+	}
+}