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/*

 *  linux/include/linux/acpi_serial.h

 *

 *  Copyright (C) 2000  Hewlett-Packard Co.

 *  Copyright (C) 2000  Khalid Aziz <khalid_aziz@hp.com>

 *

 *  Definitions for ACPI defined serial ports (headless console and

 *  debug ports)

 *

 */

#include <linux/serial.h>

extern void setup_serial_acpi(void *);

#define ACPI_SIG_LEN            4

/* ACPI table signatures */

#define ACPI_SPCRT_SIGNATURE    "SPCR"

#define ACPI_DBGPT_SIGNATURE    "DBGP"

/* Interface type as defined in ACPI serial port tables */

#define ACPI_SERIAL_INTFC_16550 0

#define ACPI_SERIAL_INTFC_16450 1

/* Interrupt types for ACPI serial port tables */

#define ACPI_SERIAL_INT_PCAT    0x01

#define ACPI_SERIAL_INT_APIC    0x02

#define ACPI_SERIAL_INT_SAPIC   0x04

/* Baud rates as defined in ACPI serial port tables */

#define ACPI_SERIAL_BAUD_9600           3

#define ACPI_SERIAL_BAUD_19200          4

#define ACPI_SERIAL_BAUD_57600          6

#define ACPI_SERIAL_BAUD_115200         7

/* Parity as defined in ACPI serial port tables */

#define ACPI_SERIAL_PARITY_NONE         0

/* Flow control methods as defined in ACPI serial port tables */

#define ACPI_SERIAL_FLOW_DCD    0x01

#define ACPI_SERIAL_FLOW_RTS    0x02

#define ACPI_SERIAL_FLOW_XON    0x04

/* Terminal types as defined in ACPI serial port tables */

#define ACPI_SERIAL_TERM_VT100          0

#define ACPI_SERIAL_TERM_VT100X 1

/* PCI Flags as defined by SPCR table */

#define ACPI_SERIAL_PCIFLAG_PNP 0x00000001

/* Space ID as defined in base address structure in ACPI serial port tables */

#define ACPI_SERIAL_MEM_SPACE           0

#define ACPI_SERIAL_IO_SPACE            1

#define ACPI_SERIAL_PCICONF_SPACE       2

/*

 * Generic Register Address Structure - as defined by Microsoft

 * in http://www.microsoft.com/hwdev/onnow/download/LFreeACPI.doc

 *

*/

typedef struct {

        u8  space_id;

        u8  bit_width;

        u8  bit_offset;

        u8  resv;

        u32 addrl;

        u32 addrh;

} gen_regaddr;

/* Space ID for generic register address structure */

#define REGADDR_SPACE_SYSMEM    0

#define REGADDR_SPACE_SYSIO     1

#define REGADDR_SPACE_PCICONFIG 2

/* Serial Port Console Redirection and Debug Port Table formats */

typedef struct {

        u8 signature[4];

        u32 length;

        u8  rev;

        u8  chksum;

        u8  oemid[6];

        u8  oem_tabid[8];

        u32 oem_rev;

        u8  creator_id[4];

        u32 creator_rev;

        u8  intfc_type;

        u8  resv1[3];

        gen_regaddr base_addr;

        u8  int_type;

        u8  irq;

        u8  global_int[4];

        u8  baud;

        u8  parity;

        u8  stop_bits;

        u8  flow_ctrl;

        u8  termtype;

        u8  language;

        u16 pci_dev_id;

        u16 pci_vendor_id;

        u8  pci_bus;

        u8  pci_dev;

        u8  pci_func;

        u8  pci_flags[4];

        u8  pci_seg;

        u32 resv2;

} acpi_ser_t;