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open_agb_firm
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Initial GPU work. 

README update.
This commit is contained in:
profi200 2020-04-20 14:22:26 +02:00
parent 3c79369710
commit 461572c326
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3 changed files with 44 additions and 4 deletions
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4
README.md
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@ -8,7 +8,7 @@ We are not responsible for any damage that may occur to your system as a direct
## How to build
To compile open_agb_firm you need
* [devkitARM](https://sourceforge.net/projects/devkitpro/)
* Corelink DMA-330 assembler (soon)
* [Corelink DMA-330 assembler](https://github.com/profi200/dma330as)
* [CTR firm builder](https://github.com/derrekr/ctr_firm_builder)
installed in your system. Additionally you need 7-Zip or on Linux p7z installed to make release builds. Also make sure the CTR firm builder and dma330as binaries are in your $PATH environment variable and accessible to the Makefile. Build open_agb_firm as debug build via `make` or as release build via `make release`.
@ -35,7 +35,7 @@ You may use this under the terms of the GNU General Public License GPL v3 or und
* **Luma 3DS devs** (for fmt.c/gfx code)
* **devkitPro** (for the toolchain/makefiles)
* **ChaN** (for the FATFS library)
* **fastboot3DS project** (heavily based on it's codebase)
* **fastboot3DS project** (heavily based on its codebase)
* ...everyone who contributed to **3dbrew.org**
Copyright (C) 2020 derrek, profi200, d0k3

2
include/hardware/gfx.h
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@ -67,6 +67,8 @@ void* GFX_getFramebuffer(u8 screen);
void GFX_swapFramebufs(void);
void GFX_waitForEvent(GfxEvent event, bool discard);
void GFX_init(void);
void GFX_gpuInit(void);
void GX_processCommandList(u32 size, const u32 *const cmdList);
//void GFX_enterLowPowerState(void);
//void GFX_returnFromLowPowerState(void);
void GFX_deinit(bool keepLcdsOn);

42
source/arm11/hardware/gfx.c
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@ -84,6 +84,12 @@
#define REG_GX_PPF_TC_INDIM *((vu32*)(GX_REGS_BASE + 0x0C24)) // Texture copy input width and gap in 16 byte units.
#define REG_GX_PPF_TC_OUTDIM *((vu32*)(GX_REGS_BASE + 0x0C28)) // Texture copy output width and gap in 16 byte units.
// P3D (GPU) regs.
#define REG_GX_P3D_UNK *((vu32*)(GX_REGS_BASE + 0x1000)) // GSP writes 0 before running a cmd list.
#define REG_GX_P3D_LIST_SIZE *((vu32*)(GX_REGS_BASE + 0x18E0)) // cmd list length in 16 bytes units.
#define REG_GX_P3D_LIST_ADR *((vu32*)(GX_REGS_BASE + 0x18E8)) // cmd list address / 64.
#define REG_GX_P3D_LIST_RUN *((vu32*)(GX_REGS_BASE + 0x18F0)) // Start list processing by writing 1.
static struct
{
@ -349,8 +355,11 @@ void GFX_init(void)
REG_PDN_GPU_CNT = 0x10000;
wait(12);
REG_PDN_GPU_CNT = 0x1007F;
REG_GX_GPU_CLK = 0x100; // 0x70100 on GPU init.
REG_GX_GPU_CLK = 0x100;
REG_GX_PSC_UNK = 0;
REG_GX_PSC_FILL0_CNT = 0;
REG_GX_PSC_FILL1_CNT = 0;
REG_GX_PPF_CNT = 0;
// LCD framebuffer setup.
gfxSetupFramebuf(0);
@ -374,7 +383,7 @@ void GFX_init(void)
IRQ_registerHandler(IRQ_PDC0, 14, 0, true, gfxIrqHandler);
//IRQ_registerHandler(IRQ_PDC1, 14, 0, true, gfxIrqHandler);
IRQ_registerHandler(IRQ_PPF, 14, 0, true, gfxIrqHandler);
//IRQ_registerHandler(IRQ_P3D, 14, 0, true, gfxIrqHandler);
IRQ_registerHandler(IRQ_P3D, 14, 0, true, gfxIrqHandler);
// Backlight and other stuff.
REG_LCD_LIGHT_TOP = 64;
@ -414,6 +423,35 @@ void GFX_init(void)
REG_LCD_FILL_BOT = 0;
}
void GFX_gpuInit(void)
{
*((vu32*)0x10140140) = 0; // REG_CFG11_GPUPROT
//*((vu32*)0x10141204) = 1;
REG_GX_GPU_CLK = 0x70100;
*((vu32*)0x10400050) = 0x22221200;
*((vu32*)0x10400054) = 0xFF2;
*((vu32*)0x10401000) = 0;
*((vu32*)0x10401080) = 0x12345678;
*((vu32*)0x104010C0) = 0xFFFFFFF0;
*((vu32*)0x104010D0) = 1;
// Works.
/*alignas(16) static const u32 cmdList[4] = {0x12345678, 0xF0010, 0x12345678, 0xF0010};
GX_processCommandList(16, cmdList);
GFX_waitForEvent(GFX_EVENT_P3D, false);*/
}
void GX_processCommandList(u32 size, const u32 *const cmdList)
{
REG_GX_P3D_UNK = 0; // Acknowledge last P3D?
REG_GX_P3D_LIST_SIZE = size>>3;
REG_GX_P3D_LIST_ADR = (u32)cmdList>>3;
REG_GX_P3D_LIST_RUN = 1;
}
// TODO: Sleep mode stuff needs some work.
/*void GFX_enterLowPowerState(void)
{