mirror of
https://github.com/ApacheThunder/GBA-Exploader.git
synced 2025-06-18 19:45:39 -04:00
540515c7fc
* Can now use gbaframes specific to a gba rom being loaded to ram/flash. Have a bmp file with filename matching the game rom being flashed in GBA_SIGN path. If it finds a matching BMP it will use that before falling back to the default gbaframe.bmp paths. * nds-bootstrap now used for booting retail NDS roms from file browser. Note that currently GBA-Exploader does not create new save files so only games with existing save files (currently hardcoded to GBA_SAV path like with GBA games) can be booted with this.
121 lines
3.2 KiB
C
121 lines
3.2 KiB
C
/*---------------------------------------------------------------------------------
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SPI control for the ARM7
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Copyright (C) 2005 - 2011
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Michael Noland (joat)
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Jason Rogers (dovoto)
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Dave Murphy (WinterMute)
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any
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damages arising from the use of this software.
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Permission is granted to anyone to use this software for any
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purpose, including commercial applications, and to alter it and
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redistribute it freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you
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must not claim that you wrote the original software. If you use
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this software in a product, an acknowledgment in the product
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documentation would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and
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must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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---------------------------------------------------------------------------------*/
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#ifndef SERIAL_ARM7_INCLUDE
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#define SERIAL_ARM7_INCLUDE
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#ifndef ARM7
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#error Serial header is for ARM7 only
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#endif
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#include <nds/bios.h>
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// 'Networking'
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#define REG_RCNT (*(vu16*)0x04000134)
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#define REG_KEYXY (*(vu16*)0x04000136)
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#define RTC_CR (*(vu16*)0x04000138)
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#define RTC_CR8 (*( vu8*)0x04000138)
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#define REG_SIOCNT (*(vu16*)0x04000128)
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#define SIO_DATA8 (*(vu8*)0x0400012A)
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#define SIO_DATA32 (*(vu32*)0x04000120)
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// Fixme: Does the hardware still support 16 bit comms mode?
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// BIOS makes use of 32 bit mode, so some regs still exist
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#define SIO_MULTI_0 (*(vu16*)0x04000120)
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#define SIO_MULTI_1 (*(vu16*)0x04000122)
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#define SIO_MULTI_2 (*(vu16*)0x04000124)
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#define SIO_MULTI_3 (*(vu16*)0x04000126)
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#define SIO_MULTI_SEND (*(vu16*)0x0400012A)
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// SPI chain registers
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#define REG_SPICNT (*(vu16*)0x040001C0)
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#define REG_SPIDATA (*(vu16*)0x040001C2)
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#define SPI_ENABLE BIT(15)
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#define SPI_IRQ BIT(14)
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#define SPI_BUSY BIT(7)
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// meh
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#define SPI_BAUD_4MHz 0
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#define SPI_BAUD_2MHz 1
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#define SPI_BAUD_1MHz 2
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#define SPI_BAUD_512KHz 3
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// Pick the SPI transfer length
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#define SPI_BYTE_MODE (0<<10)
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#define SPI_HWORD_MODE (1<<10)
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// Pick the SPI device
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#define SPI_DEVICE_POWER (0 << 8)
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#define SPI_DEVICE_FIRMWARE (1 << 8)
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#define SPI_DEVICE_NVRAM (1 << 8)
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#define SPI_DEVICE_TOUCH (2 << 8)
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#define SPI_DEVICE_MICROPHONE (2 << 8)
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// When used, the /CS line will stay low after the transfer ends
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// i.e. when we're part of a continuous transfer
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#define SPI_CONTINUOUS BIT(11)
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// Fixme: does this stuff really belong in serial.h?
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// Fixme: does this stuff really belong in serial.h?
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// Firmware commands
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#define FIRMWARE_WREN 0x06
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#define FIRMWARE_WRDI 0x04
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#define FIRMWARE_RDID 0x9F
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#define FIRMWARE_RDSR 0x05
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#define FIRMWARE_READ 0x03
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#define FIRMWARE_PW 0x0A
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#define FIRMWARE_PP 0x02
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#define FIRMWARE_FAST 0x0B
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#define FIRMWARE_PE 0xDB
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#define FIRMWARE_SE 0xD8
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#define FIRMWARE_DP 0xB9
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#define FIRMWARE_RDP 0xAB
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static inline
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void SerialWaitBusy() {
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while (REG_SPICNT & SPI_BUSY);
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}
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// Read the firmware
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void readFirmware(u32 address, void * destination, u32 size);
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#endif
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