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acpi: Add SPCR and generic address definitions

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This adds the definition of the two ACPI tables according to the spec.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Benjamin Herrenschmidt 2022-12-23 12:47:53 +11:00 committed by Daniel Kiper
parent cff78b3b61
commit 55604aaad2
1 changed files with 51 additions and 0 deletions
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51
include/grub/acpi.h
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@ -179,6 +179,57 @@ enum
GRUB_ACPI_MADT_ENTRY_SAPIC_FLAGS_ENABLED = 1
};
struct grub_acpi_genaddr {
grub_uint8_t space_id;
#define GRUB_ACPI_GENADDR_MEM_SPACE 0x00
#define GRUB_ACPI_GENADDR_IO_SPACE 0x01
grub_uint8_t bit_width;
grub_uint8_t bit_offset;
grub_uint8_t access_size;
#define GRUB_ACPI_GENADDR_SIZE_LGCY 0x00
#define GRUB_ACPI_GENADDR_SIZE_BYTE 0x01
#define GRUB_ACPI_GENADDR_SIZE_WORD 0x02
#define GRUB_ACPI_GENADDR_SIZE_DWORD 0x03
#define GRUB_ACPI_GENADDR_SIZE_QWORD 0x04
grub_uint64_t addr;
} GRUB_PACKED;
#define GRUB_ACPI_SPCR_SIGNATURE "SPCR"
struct grub_acpi_spcr {
struct grub_acpi_table_header hdr;
grub_uint8_t intf_type;
#define GRUB_ACPI_SPCR_INTF_TYPE_16550 0x00
#define GRUB_ACPI_SPCR_INTF_TYPE_16550X 0x01
grub_uint8_t reserved_0[3];
struct grub_acpi_genaddr base_addr;
grub_uint8_t interrupt_type;
grub_uint8_t irq;
grub_uint32_t gsi;
grub_uint8_t baud_rate;
#define GRUB_ACPI_SPCR_BAUD_CURRENT 0x00
#define GRUB_ACPI_SPCR_BAUD_9600 0x03
#define GRUB_ACPI_SPCR_BAUD_19200 0x04
#define GRUB_ACPI_SPCR_BAUD_57600 0x06
#define GRUB_ACPI_SPCR_BAUD_115200 0x07
grub_uint8_t parity;
grub_uint8_t stop_bits;
grub_uint8_t flow_control;
#define GRUB_ACPI_SPCR_FC_DCD_TX (1 << 0)
#define GRUB_ACPI_SPCR_FC_RTSCTS (1 << 1)
#define GRUB_ACPI_SPCR_FC_XONXOFF (1 << 2)
grub_uint8_t terminal_type;
grub_uint8_t language;
grub_uint16_t pci_device_id;
grub_uint16_t pci_vendor_id;
grub_uint8_t pci_bus;
grub_uint8_t pci_device;
grub_uint8_t pci_function;
grub_uint32_t pci_flags;
grub_uint8_t pci_segment;
grub_uint32_t reserved_1;
} GRUB_PACKED;
#ifndef GRUB_DSDT_TEST
struct grub_acpi_rsdp_v10 *grub_acpi_get_rsdpv1 (void);
struct grub_acpi_rsdp_v20 *grub_acpi_get_rsdpv2 (void);