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/*
* linux/include/linux/hcdp_serial.h
*
* Copyright (C) 2002 Hewlett-Packard Co.
* Copyright (C) 2002 Khalid Aziz <khalid_aziz@hp.com>
*
* Definitions for HCDP defined serial ports (Serial console and
* debug ports)
*
*/
#ifndef _LINUX_HCDP_SERIAL_H
#define _LINUX_HCDP_SERIAL_H
/* ACPI table signatures */
#define HCDP_SIG_LEN 4
#define HCDP_SIGNATURE "HCDP"
/* Space ID as defined in ACPI generic address structure */
#define ACPI_MEM_SPACE 0
#define ACPI_IO_SPACE 1
#define ACPI_PCICONF_SPACE 2
/*
* Maximum number of HCDP devices we want to read in
*/
#define MAX_HCDP_DEVICES 6
/*
* Default base baud rate if clock rate is 0 in HCDP table.
*/
#define DEFAULT_BAUD_BASE 115200
/*
* ACPI Generic Address Structure
*/
typedef struct {
u8 space_id;
u8 bit_width;
u8 bit_offset;
u8 resv;
u32 addrlo;
u32 addrhi;
} acpi_gen_addr;
/* HCDP Device descriptor entry types */
#define HCDP_DEV_CONSOLE 0
#define HCDP_DEV_DEBUG 1
/* HCDP Device descriptor type */
typedef struct {
u8 type;
u8 bits;
u8 parity;
u8 stop_bits;
u8 pci_seg;
u8 pci_bus;
u8 pci_dev;
u8 pci_func;
u64 baud;
acpi_gen_addr base_addr;
u16 pci_dev_id;
u16 pci_vendor_id;
u32 global_int;
u32 clock_rate;
u8 pci_prog_intfc;
u8 resv;
} hcdp_dev_t;
/* HCDP Table format */
typedef struct {
u8 signature[4];
u32 len;
u8 rev;
u8 chksum;
u8 oemid[6];
u8 oem_tabid[8];
u32 oem_rev;
u8 creator_id[4];
u32 creator_rev;
u32 num_entries;
hcdp_dev_t hcdp_dev[MAX_HCDP_DEVICES];
} hcdp_t;
#endif /* _LINUX_HCDP_SERIAL_H */
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