io.h File Reference

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Functions
static uintptr_t	io_reg (struct ioaddr *io, uintptr_t off)
	Returns the kernel address of register off.
static uint8_t	io_in8 (struct ioaddr *io, uintptr_t off)
	Reads an 8-, 16- or 32-bit register.
static uint16_t	io_in16 (struct ioaddr *io, uintptr_t off)
static uint32_t	io_in32 (struct ioaddr *io, uintptr_t off)
static void	io_out8 (struct ioaddr *io, uintptr_t off, uint8_t val)
	Writes an 8-, 16- or 32-bit register.
static void	io_out16 (struct ioaddr *io, uintptr_t off, uint16_t val)
static void	io_out32 (struct ioaddr *io, uintptr_t off, uint32_t val)
static uint32_t	mmio_read32 (uintptr_t addr)
	Reads, or writes, a 32-bit register at a kernel address.
static void	mmio_write32 (uintptr_t addr, uint32_t val)

Function Documentation

io_in16()

uint16_t io_in16 ( struct ioaddr * io, uintptr_t off )

inlinestatic

Definition at line 33 of file io.h.

References io_in16(), and io_reg().

Referenced by ata_detect_drive(), io_in16(), and pm1_read().

io_in32()

uint32_t io_in32 ( struct ioaddr * io, uintptr_t off )

inlinestatic

Definition at line 38 of file io.h.

References io_in32(), and io_reg().

Referenced by io_in32(), pci_conf1_read(), pci_ecam_read(), pl011_irq(), pl011_receive(), pl011_transmit(), and reg_read().

io_in8()

uint8_t io_in8 ( struct ioaddr * io, uintptr_t off )

inlinestatic

Reads an 8-, 16- or 32-bit register.

Definition at line 28 of file io.h.

References io_in8(), and io_reg().

Referenced by ata_detect_drive(), ata_drive_present(), ata_poll(), ata_reset(), ata_wait(), cmos_reg_read(), dma_complete(), dma_irq(), dma_transfer(), i8042_init(), i8042_irq(), io_in8(), read_status(), read_wait(), serial_empty(), serial_init(), serial_received(), serial_tx_empty(), uart_8250_comm_init(), uart_8250_present(), uart_8250_receive(), x86_pic_probe(), and x86_pit_delay().

io_out16()

void io_out16 ( struct ioaddr * io, uintptr_t off, uint16_t val )

inlinestatic

Definition at line 49 of file io.h.

References io_out16(), and io_reg().

Referenced by io_out16(), and pm1_write().

io_out32()

void io_out32 ( struct ioaddr * io, uintptr_t off, uint32_t val )

inlinestatic

Definition at line 54 of file io.h.

References io_out32(), and io_reg().

Referenced by conf1_select(), dma_transfer(), io_out32(), pci_conf1_write(), pci_ecam_write(), pl011_comm_init(), pl011_irq(), pl011_transmit(), and reg_write().

io_out8()

void io_out8 ( struct ioaddr * io, uintptr_t off, uint8_t val )

inlinestatic

Writes an 8-, 16- or 32-bit register.

Definition at line 44 of file io.h.

References io_out8(), and io_reg().

Referenced by ata_detect_drive(), ata_reset(), ata_select_drive(), ata_setup(), aux_enable(), cmos_reg_read(), dma_complete(), dma_transfer(), earlycon_vga_init(), i8042_aux_write(), i8042_reboot(), io_out8(), pic_chip_eoi(), pio_flush(), pio_read_sectors(), pio_write_sectors(), serial_chr(), serial_init(), uart_8250_comm_init(), uart_8250_present(), uart_8250_transmit(), vga_cursor(), x86_acpi_poweroff(), x86_irq_mask(), x86_irq_remap(), x86_irq_unmask(), x86_pic_disable(), x86_pic_probe(), x86_pit_delay(), and x86_pit_period_set().

io_reg()

uintptr_t io_reg ( struct ioaddr * io, uintptr_t off )

inlinestatic

Returns the kernel address of register off.

Definition at line 15 of file io.h.

References ioaddr::addr, io_reg(), IOADDR_MMIO16, IOADDR_MMIO32, and ioaddr::type.

Referenced by io_in16(), io_in32(), io_in8(), io_out16(), io_out32(), io_out8(), and io_reg().

mmio_read32()

uint32_t mmio_read32 ( uintptr_t addr )

inlinestatic

Reads, or writes, a 32-bit register at a kernel address.

Definition at line 60 of file io.h.

mmio_write32()

void mmio_write32 ( uintptr_t addr, uint32_t val )

inlinestatic

Definition at line 65 of file io.h.