mirror of
https://github.com/d0k3/GodMode9.git
synced 2025-06-26 05:32:47 +00:00
Add screeninit to FIRM payload
This commit is contained in:
d0k3
parent
96f6f2f34b
commit
c7322b478d
12
Makefile
12
Makefile
@ -28,7 +28,7 @@ INCLUDES := source source/common source/font source/filesys source/crypto source
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#---------------------------------------------------------------------------------
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# options for code generation
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#---------------------------------------------------------------------------------
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ARCH := -mthumb -mthumb-interwork -flto
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ARCH := -marm -mthumb-interwork -flto
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CFLAGS := -g -Wall -Wextra -Wpedantic -Wcast-align -Wno-main -O2\
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-march=armv5te -mtune=arm946e-s -fomit-frame-pointer -ffast-math -std=gnu11\
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@ -120,7 +120,7 @@ export INCLUDE := $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
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export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib)
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.PHONY: common clean all gateway firm binary cakehax cakerop brahma release
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.PHONY: common clean all gateway firm binary cakehax cakerop brahma screeninit release
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#---------------------------------------------------------------------------------
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all: firm
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@ -132,11 +132,14 @@ common:
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submodules:
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@-git submodule update --init --recursive
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screeninit:
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@$(MAKE) dir_out=$(OUTPUT_D) -C screeninit
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binary: common
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@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
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firm: binary
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@firmtool build $(OUTPUT).firm -n 0x23F00000 -e 0 -D $(OUTPUT).elf -A 0x23F00000 -C NDMA -i
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firm: binary screeninit
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firmtool build $(OUTPUT).firm -D $(OUTPUT).elf $(OUTPUT_D)/screeninit.elf -C NDMA XDMA
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gateway: binary
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@cp resources/LauncherTemplate.dat $(OUTPUT_D)/Launcher.dat
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@ -184,6 +187,7 @@ clean:
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@-$(MAKE) clean --no-print-directory -C CakeHax
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@-$(MAKE) clean --no-print-directory -C CakesROP
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@-$(MAKE) clean --no-print-directory -C BrahmaLoader
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@-$(MAKE) clean --no-print-directory -C screeninit
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@rm -fr $(BUILD) $(OUTPUT_D) $(RELEASE)
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42
screeninit/Makefile
Normal file
42
screeninit/Makefile
Normal file
@ -0,0 +1,42 @@
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rwildcard = $(foreach d, $(wildcard $1*), $(filter $(subst *, %, $2), $d) $(call rwildcard, $d/, $2))
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ifeq ($(strip $(DEVKITARM)),)
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$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
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endif
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include $(DEVKITARM)/base_tools
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name := $(shell basename $(CURDIR))
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dir_source := source
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dir_build := build
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dir_out := ../$(dir_build)
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ASFLAGS := -mcpu=mpcore -mfloat-abi=hard
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CFLAGS := -Wall -Wextra -MMD -MP -mthumb -mthumb-interwork $(ASFLAGS) -fno-builtin -std=c11 -Wno-main -O2 -flto -ffast-math
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LDFLAGS := -nostdlib
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objects = $(patsubst $(dir_source)/%.s, $(dir_build)/%.o, \
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$(patsubst $(dir_source)/%.c, $(dir_build)/%.o, \
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$(call rwildcard, $(dir_source), *.s *.c)))
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.PHONY: all
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all: $(dir_out)/$(name).bin
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.PHONY: clean
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clean:
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@rm -rf $(dir_build)
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$(dir_out)/$(name).bin: $(dir_out)/$(name).elf
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$(OBJCOPY) -S -O binary $< $@
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$(dir_out)/$(name).elf: $(objects)
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$(LINK.o) -T linker.ld $(OUTPUT_OPTION) $^
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$(dir_build)/%.o: $(dir_source)/%.c
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@mkdir -p "$(@D)"
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$(COMPILE.c) $(OUTPUT_OPTION) $<
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$(dir_build)/%.o: $(dir_source)/%.s
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@mkdir -p "$(@D)"
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$(COMPILE.s) $(OUTPUT_OPTION) $<
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3
screeninit/build/main.d
Normal file
3
screeninit/build/main.d
Normal file
@ -0,0 +1,3 @@
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build/main.o: source/main.c source/types.h
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source/types.h:
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16
screeninit/linker.ld
Normal file
16
screeninit/linker.ld
Normal file
@ -0,0 +1,16 @@
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OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
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OUTPUT_ARCH(arm)
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ENTRY(__boot)
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SECTIONS
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{
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. = 0x1FF80000;
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.text : ALIGN(4) { *(.text.start) *(.text*); . = ALIGN(4); }
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.rodata : ALIGN(4) { *(.rodata*); . = ALIGN(4); }
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.data : ALIGN(4) { *(.data*); . = ALIGN(8); *(.bss* COMMON); . = ALIGN(8); }
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. = ALIGN(4);
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__stack_top = 0x1FFFF800;
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}
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31
screeninit/source/boot.s
Normal file
31
screeninit/source/boot.s
Normal file
@ -0,0 +1,31 @@
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@ This file was kindly provided by Wolfvak - thank you!
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.section .text.boot
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.arm
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.global __boot
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__boot:
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@ Disable interrupts and switch to Supervisor
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cpsid aif, #0x13
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@ Writeback and invalidate caches
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mov r0, #0
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mcr p15, 0, r0, c7, c7, 0
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mcr p15, 0, r0, c7, c14, 0
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mcr p15, 0, r0, c7, c10, 4
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ldr sp, =__stack_top
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@ Reset values
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ldr r0, =0x00054078
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ldr r1, =0x0000000F
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ldr r2, =0x00000000
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@ MMU disabled, Caches disabled, other misc crap going on
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mcr p15, 0, r0, c1, c0, 0
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mcr p15, 0, r1, c1, c0, 1
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mcr p15, 0, r2, c1, c0, 2
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bl main
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b __boot
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129
screeninit/source/main.c
Normal file
129
screeninit/source/main.c
Normal file
@ -0,0 +1,129 @@
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// screeninit source taken over from https://github.com/AuroraWright/arm9loaderhax/tree/master/payload_stage2/arm11
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// check there for license info
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// thanks go to AuroraWright
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#include "types.h"
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// see: https://github.com/AuroraWright/Luma3DS/blob/53209b9be0c264af00fb81b32146d27f0d9498ac/source/screen.h#L32-L34
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#define PDN_GPU_CNT (*(vu8 *)0x10141200)
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#define ARESCREENSINITIALIZED (PDN_GPU_CNT != 1)
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#define BRIGHTNESS 0x39
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void main(void)
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{
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vu32 *arm11Entry = (vu32 *)0x1FFFFFFC;
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if (ARESCREENSINITIALIZED) return; // nothing to do in that case
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*(vu32 *)0x10141200 = 0x1007F;
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*(vu32 *)0x10202014 = 0x00000001;
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*(vu32 *)0x1020200C &= 0xFFFEFFFE;
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*(vu32 *)0x10202240 = BRIGHTNESS;
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*(vu32 *)0x10202A40 = BRIGHTNESS;
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*(vu32 *)0x10202244 = 0x1023E;
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*(vu32 *)0x10202A44 = 0x1023E;
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//Top screen
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*(vu32 *)0x10400400 = 0x000001c2;
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*(vu32 *)0x10400404 = 0x000000d1;
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*(vu32 *)0x10400408 = 0x000001c1;
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*(vu32 *)0x1040040c = 0x000001c1;
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*(vu32 *)0x10400410 = 0x00000000;
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*(vu32 *)0x10400414 = 0x000000cf;
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*(vu32 *)0x10400418 = 0x000000d1;
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*(vu32 *)0x1040041c = 0x01c501c1;
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*(vu32 *)0x10400420 = 0x00010000;
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*(vu32 *)0x10400424 = 0x0000019d;
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*(vu32 *)0x10400428 = 0x00000002;
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*(vu32 *)0x1040042c = 0x00000192;
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*(vu32 *)0x10400430 = 0x00000192;
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*(vu32 *)0x10400434 = 0x00000192;
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*(vu32 *)0x10400438 = 0x00000001;
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*(vu32 *)0x1040043c = 0x00000002;
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*(vu32 *)0x10400440 = 0x01960192;
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*(vu32 *)0x10400444 = 0x00000000;
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*(vu32 *)0x10400448 = 0x00000000;
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*(vu32 *)0x1040045C = 0x00f00190;
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*(vu32 *)0x10400460 = 0x01c100d1;
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*(vu32 *)0x10400464 = 0x01920002;
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*(vu32 *)0x10400468 = 0x18300000;
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*(vu32 *)0x10400470 = 0x80341;
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*(vu32 *)0x10400474 = 0x00010501;
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*(vu32 *)0x10400478 = 0;
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*(vu32 *)0x10400490 = 0x000002D0;
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*(vu32 *)0x1040049C = 0x00000000;
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//Disco register
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for(u32 i = 0; i < 256; i++)
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*(vu32 *)0x10400484 = 0x10101 * i;
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//Bottom screen
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*(vu32 *)0x10400500 = 0x000001c2;
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*(vu32 *)0x10400504 = 0x000000d1;
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*(vu32 *)0x10400508 = 0x000001c1;
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*(vu32 *)0x1040050c = 0x000001c1;
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*(vu32 *)0x10400510 = 0x000000cd;
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*(vu32 *)0x10400514 = 0x000000cf;
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*(vu32 *)0x10400518 = 0x000000d1;
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*(vu32 *)0x1040051c = 0x01c501c1;
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*(vu32 *)0x10400520 = 0x00010000;
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*(vu32 *)0x10400524 = 0x0000019d;
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*(vu32 *)0x10400528 = 0x00000052;
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*(vu32 *)0x1040052c = 0x00000192;
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*(vu32 *)0x10400530 = 0x00000192;
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*(vu32 *)0x10400534 = 0x0000004f;
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*(vu32 *)0x10400538 = 0x00000050;
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*(vu32 *)0x1040053c = 0x00000052;
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*(vu32 *)0x10400540 = 0x01980194;
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*(vu32 *)0x10400544 = 0x00000000;
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*(vu32 *)0x10400548 = 0x00000011;
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*(vu32 *)0x1040055C = 0x00f00140;
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*(vu32 *)0x10400560 = 0x01c100d1;
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*(vu32 *)0x10400564 = 0x01920052;
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*(vu32 *)0x10400568 = 0x18300000 + 0x46500;
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*(vu32 *)0x10400570 = 0x80301;
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*(vu32 *)0x10400574 = 0x00010501;
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*(vu32 *)0x10400578 = 0;
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*(vu32 *)0x10400590 = 0x000002D0;
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*(vu32 *)0x1040059C = 0x00000000;
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//Disco register
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for(u32 i = 0; i < 256; i++)
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*(vu32 *)0x10400584 = 0x10101 * i;
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//Set CakeBrah framebuffers
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fb->top_left = (u8 *)0x18300000;
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fb->top_right = (u8 *)0x18300000;
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fb->bottom = (u8 *)0x18346500;
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*(vu32 *)0x10400468 = (u32)fb->top_left;
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*(vu32 *)0x1040046c = (u32)fb->top_left;
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*(vu32 *)0x10400494 = (u32)fb->top_right;
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*(vu32 *)0x10400498 = (u32)fb->top_right;
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*(vu32 *)0x10400568 = (u32)fb->bottom;
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*(vu32 *)0x1040056c = (u32)fb->bottom;
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vu32 *REGs_PSC0 = (vu32 *)0x10400010,
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*REGs_PSC1 = (vu32 *)0x10400020;
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REGs_PSC0[0] = (u32)fb->top_left >> 3; //Start address
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REGs_PSC0[1] = (u32)(fb->top_left + SCREEN_TOP_FBSIZE) >> 3; //End address
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REGs_PSC0[2] = 0; //Fill value
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REGs_PSC0[3] = (2 << 8) | 1; //32-bit pattern; start
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REGs_PSC1[0] = (u32)fb->bottom >> 3; //Start address
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REGs_PSC1[1] = (u32)(fb->bottom + SCREEN_BOTTOM_FBSIZE) >> 3; //End address
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REGs_PSC1[2] = 0; //Fill value
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REGs_PSC1[3] = (2 << 8) | 1; //32-bit pattern; start
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while(!((REGs_PSC0[3] & 2) && (REGs_PSC1[3] & 2)));
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//Clear ARM11 entrypoint
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*arm11Entry = 0;
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//Wait for the entrypoint to be set
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while(!*arm11Entry);
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//Jump to it
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((void (*)())*arm11Entry)();
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}
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25
screeninit/source/types.h
Normal file
25
screeninit/source/types.h
Normal file
@ -0,0 +1,25 @@
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#pragma once
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#include <stdint.h>
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//Common data types
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typedef uint8_t u8;
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typedef uint16_t u16;
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typedef uint32_t u32;
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typedef uint64_t u64;
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typedef volatile u8 vu8;
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typedef volatile u16 vu16;
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typedef volatile u32 vu32;
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typedef volatile u64 vu64;
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#define SCREEN_TOP_WIDTH 400
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#define SCREEN_BOTTOM_WIDTH 320
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#define SCREEN_HEIGHT 240
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#define SCREEN_TOP_FBSIZE (3 * SCREEN_TOP_WIDTH * SCREEN_HEIGHT)
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#define SCREEN_BOTTOM_FBSIZE (3 * SCREEN_BOTTOM_WIDTH * SCREEN_HEIGHT)
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static volatile struct fb {
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u8 *top_left;
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u8 *top_right;
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u8 *bottom;
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} *const fb = (volatile struct fb *)0x23FFFE00;
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@ -1,12 +1,16 @@
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#include "common.h"
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#include "godmode.h"
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#include "ui.h"
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#include "i2c.h"
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#include "power.h"
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u8 *top_screen, *bottom_screen;
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void main(int argc, char** argv)
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{
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// Turn on backlight
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I2C_writeReg(I2C_DEV_MCU, 0x22, 0x2A);
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// Fetch the framebuffer addresses
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if(argc >= 2) {
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// newer entrypoints
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@ -18,6 +22,7 @@ void main(int argc, char** argv)
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top_screen = (u8*)(*(u32*)0x23FFFE00);
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bottom_screen = (u8*)(*(u32*)0x23FFFE08);
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}
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u32 godmode_exit = GodMode();
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(godmode_exit == GODMODE_EXIT_REBOOT) ? Reboot() : PowerOff();
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// Run the main program
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(GodMode() == GODMODE_EXIT_REBOOT) ? Reboot() : PowerOff();
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}
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