Flashcart Boot IO. More...

Data Structures
struct	sp_mem_t
	Memory Structure. More...

struct	sp_regs_t
	SP Registers Structure. More...

struct	dpc_regs_t
	DPC Registers Structure. More...

struct	vi_regs_t
	Video Interface Registers Structure. More...

struct	ai_regs_t
	Audio Interface Registers Structure. More...

struct	pi_regs_t
	Peripheral Interface Register Structure. More...

struct	pi_regs_t.DOM

Macros
#define	UNCACHED(address)
	Convert an address to its uncached equivalent.

#define	SP_MEM_BASE (0x04000000UL)
	Base address for SP memory.

#define	SP_MEM ((sp_mem_t *) SP_MEM_BASE)
	Pointer to the SP memory structure.

#define	SP_BASE (0x04040000UL)
	Base address for SP registers.

#define	SP ((sp_regs_t *) SP_BASE)
	Pointer to the SP registers structure.

#define	SP_SR_HALT (1 << 0)

#define	SP_SR_BROKE (1 << 1)

#define	SP_SR_DMA_BUSY (1 << 2)

#define	SP_SR_DMA_FULL (1 << 3)

#define	SP_SR_IO_FULL (1 << 4)

#define	SP_SR_SSTEP (1 << 5)

#define	SP_SR_INTR_BREAK (1 << 6)

#define	SP_SR_SIG0 (1 << 7)

#define	SP_SR_SIG1 (1 << 8)

#define	SP_SR_SIG2 (1 << 9)

#define	SP_SR_SIG3 (1 << 10)

#define	SP_SR_SIG4 (1 << 11)

#define	SP_SR_SIG5 (1 << 12)

#define	SP_SR_SIG6 (1 << 13)

#define	SP_SR_SIG7 (1 << 14)

#define	SP_SR_CLR_HALT (1 << 0)

#define	SP_SR_SET_HALT (1 << 1)

#define	SP_SR_CLR_BROKE (1 << 2)

#define	SP_SR_CLR_INTR (1 << 3)

#define	SP_SR_SET_INTR (1 << 4)

#define	SP_SR_CLR_SSTEP (1 << 5)

#define	SP_SR_SET_SSTEP (1 << 6)

#define	SP_SR_CLR_INTR_BREAK (1 << 7)

#define	SP_SR_SET_INTR_BREAK (1 << 8)

#define	SP_SR_CLR_SIG0 (1 << 9)

#define	SP_SR_SET_SIG0 (1 << 10)

#define	SP_SR_CLR_SIG1 (1 << 11)

#define	SP_SR_SET_SIG1 (1 << 12)

#define	SP_SR_CLR_SIG2 (1 << 13)

#define	SP_SR_SET_SIG2 (1 << 14)

#define	SP_SR_CLR_SIG3 (1 << 15)

#define	SP_SR_SET_SIG3 (1 << 16)

#define	SP_SR_CLR_SIG4 (1 << 17)

#define	SP_SR_SET_SIG4 (1 << 18)

#define	SP_SR_CLR_SIG5 (1 << 19)

#define	SP_SR_SET_SIG5 (1 << 20)

#define	SP_SR_CLR_SIG6 (1 << 21)

#define	SP_SR_SET_SIG6 (1 << 22)

#define	SP_SR_CLR_SIG7 (1 << 23)

#define	SP_SR_SET_SIG7 (1 << 24)

#define	DPC_BASE (0x04100000UL)

#define	DPC ((dpc_regs_t *) DPC_BASE)

#define	DPC_SR_XBUS_DMEM_DMA (1 << 0)

#define	DPC_SR_FREEZE (1 << 1)

#define	DPC_SR_FLUSH (1 << 2)

#define	DPC_SR_START_GCLK (1 << 3)

#define	DPC_SR_TMEM_BUSY (1 << 4)

#define	DPC_SR_PIPE_BUSY (1 << 5)

#define	DPC_SR_CMD_BUSY (1 << 6)

#define	DPC_SR_CBUF_READY (1 << 7)

#define	DPC_SR_DMA_BUSY (1 << 8)

#define	DPC_SR_END_VALID (1 << 9)

#define	DPC_SR_START_VALID (1 << 10)

#define	DPC_SR_CLR_XBUS_DMEM_DMA (1 << 0)

#define	DPC_SR_SET_XBUS_DMEM_DMA (1 << 1)

#define	DPC_SR_CLR_FREEZE (1 << 2)

#define	DPC_SR_SET_FREEZE (1 << 3)

#define	DPC_SR_CLR_FLUSH (1 << 4)

#define	DPC_SR_SET_FLUSH (1 << 5)

#define	DPC_SR_CLR_TMEM_CTR (1 << 6)

#define	DPC_SR_CLR_PIPE_CTR (1 << 7)

#define	DPC_SR_CLR_CMD_CTR (1 << 8)

#define	DPC_SR_CLR_CLOCK_CTR (1 << 9)

#define	VI_BASE (0x04400000UL)

#define	VI ((vi_regs_t *) VI_BASE)

#define	VI_CR_TYPE_16 (2 << 0)

#define	VI_CR_TYPE_32 (3 << 0)

#define	VI_CR_GAMMA_DITHER_ON (1 << 2)

#define	VI_CR_GAMMA_ON (1 << 3)

#define	VI_CR_DIVOT_ON (1 << 4)

#define	VI_CR_SERRATE_ON (1 << 6)

#define	VI_CR_ANTIALIAS_0 (1 << 8)

#define	VI_CR_ANTIALIAS_1 (1 << 9)

#define	VI_CR_PIXEL_ADVANCE_0 (1 << 12)

#define	VI_CR_PIXEL_ADVANCE_1 (1 << 13)

#define	VI_CR_PIXEL_ADVANCE_2 (1 << 14)

#define	VI_CR_PIXEL_ADVANCE_3 (1 << 15)

#define	VI_CR_DITHER_FILTER_ON (1 << 16)

#define	VI_CURR_LINE_FIELD (1 << 0)

#define	AI_BASE (0x04500000UL)

#define	AI ((ai_regs_t *) AI_BASE)

#define	AI_SR_DMA_BUSY (1 << 30)

#define	AI_SR_FIFO_FULL (1 << 31)

#define	AI_CR_DMA_ON (1 << 0)

#define	PI_BASE (0x04600000UL)

#define	PI ((pi_regs_t *) PI_BASE)

#define	PI_SR_DMA_BUSY (1 << 0)

#define	PI_SR_IO_BUSY (1 << 1)

#define	PI_SR_DMA_ERROR (1 << 2)

#define	PI_SR_RESET (1 << 0)

#define	PI_SR_CLR_INTR (1 << 1)

#define	ROM_DDIPL_BASE (0x06000000UL)

#define	ROM_DDIPL ((io32_t *) ROM_DDIPL_BASE)

#define	ROM_CART_BASE (0x10000000UL)

#define	ROM_CART ((io32_t *) ROM_CART_BASE)

Typedefs
typedef volatile uint8_t	io8_t
	8-bit volatile IO type.

typedef volatile uint32_t	io32_t
	32-bit volatile IO type.

Detailed Description

Flashcart Boot IO.

Data Structure Documentation

◆ sp_mem_t

struct sp_mem_t

Memory Structure.

This structure represents the memory layout for the SP (Signal Processor), containing both Data Memory (DMEM) and Instruction Memory (IMEM).

Data Fields
io32_t	DMEM[1024]	Data Memory (DMEM) array of 1024 32-bit words.
io32_t	IMEM[1024]	Instruction Memory (IMEM) array of 1024 32-bit words.

◆ sp_regs_t

struct sp_regs_t

SP Registers Structure.

This structure represents the registers for the SP (Signal Processor).

Data Fields
io32_t	PADDR	Physical Address Register.
io32_t	MADDR	Memory Address Register.
io32_t	RD_LEN	Read Length Register.
io32_t	WR_LEN	Write Length Register.
io32_t	SR	Status Register.
io32_t	DMA_FULL	DMA Full Register.
io32_t	DMA_BUSY	DMA Busy Register.
io32_t	SEMAPHORE	Semaphore Register.
io32_t	__reserved[0xFFF8]
io32_t	PC	Program Counter Register.

◆ dpc_regs_t

struct dpc_regs_t

DPC Registers Structure.

This structure represents the registers for the DPC (Display Processor).

Data Fields
io32_t	START	Start Register.
io32_t	END	End Register.
io32_t	CURRENT	Current Register.
io32_t	SR	Status Register.
io32_t	CLOCK	Clock Register.
io32_t	BUF_BUSY	Buffer Busy Register.
io32_t	PIPE_BUSY	Pipe Busy Register.
io32_t	TMEM	TMEM Register.

◆ vi_regs_t

struct vi_regs_t

Video Interface Registers Structure.

This structure represents the registers for the Video Interface (VI).

Data Fields
io32_t	CR	Control Register.
io32_t	MADDR	Memory Address.
io32_t	H_WIDTH	Horizontal Width.
io32_t	V_INTR	Vertical Interrupt.
io32_t	CURR_LINE	Current Line.
io32_t	TIMING	Timings.
io32_t	V_SYNC	Vertical Sync.
io32_t	H_SYNC	Horizontal Sync.
io32_t	H_SYNC_LEAP	Horizontal Sync Leap.
io32_t	H_LIMITS	Horizontal Limits.
io32_t	V_LIMITS	Vertical Limits.
io32_t	COLOR_BURST	Color Burst.
io32_t	H_SCALE	Horizontal Scale.
io32_t	V_SCALE	Vertical Scale.

◆ ai_regs_t

struct ai_regs_t

Audio Interface Registers Structure.

This structure represents the registers for the Audio Interface (AI).

Data Fields
io32_t	MADDR	Memory Address.
io32_t	LEN	Length of bytes.
io32_t	CR	Control Register.
io32_t	SR	Status Register.
io32_t	DACRATE	DAC rate.
io32_t	BITRATE	Bit rate.

◆ pi_regs_t

struct pi_regs_t

Peripheral Interface Register Structure.

This structure represents the registers for the Peripheral Interface (PI).

Data Fields
io32_t	MADDR	Memory Address.
io32_t	PADDR	Cart Address.
io32_t	RDMA	Read Length.
io32_t	WDMA	Write Length.
io32_t	SR	Status Register.
struct pi_regs_t.DOM	DOM[2]	Domain 2 Registers.

◆ pi_regs_t.DOM

struct pi_regs_t.DOM

Data Fields
io32_t	LAT	Latch Value.
io32_t	PWD	Pulse Width Value.
io32_t	PGS	Page Size Value.
io32_t	RLS	Release Value.

Macro Definition Documentation

◆ UNCACHED

#define UNCACHED ( address )

Value:

((typeof(address)) (((io32_t) (address)) | (0xA0000000UL)))

io32_t

volatile uint32_t io32_t

32-bit volatile IO type.

Definition boot_io.h:23

Convert an address to its uncached equivalent.

This macro takes an address and converts it to its uncached equivalent by setting the appropriate bits.

Parameters

address The address to convert.

Returns: The uncached equivalent of the address.

Data Structures

Macros

Typedefs