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/*
* Definitions for PCDP-defined console devices
*
* v1.0a: http://www.dig64.org/specifications/DIG64_HCDPv10a_01.pdf
* v2.0: http://www.dig64.org/specifications/DIG64_HCDPv20_042804.pdf
*
* (c) Copyright 2002, 2004 Hewlett-Packard Development Company, L.P.
* Khalid Aziz <khalid.aziz@hp.com>
* Bjorn Helgaas <bjorn.helgaas@hp.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#define PCDP_CONSOLE 0
#define PCDP_DEBUG 1
#define PCDP_CONSOLE_OUTPUT 2
#define PCDP_CONSOLE_INPUT 3
#define PCDP_UART (0 << 3)
#define PCDP_VGA (1 << 3)
#define PCDP_USB (2 << 3)
/* pcdp_uart.type and pcdp_device.type */
#define PCDP_CONSOLE_UART (PCDP_UART | PCDP_CONSOLE)
#define PCDP_DEBUG_UART (PCDP_UART | PCDP_DEBUG)
#define PCDP_CONSOLE_VGA (PCDP_VGA | PCDP_CONSOLE_OUTPUT)
#define PCDP_CONSOLE_USB (PCDP_USB | PCDP_CONSOLE_INPUT)
/* pcdp_uart.flags */
#define PCDP_UART_EDGE_SENSITIVE (1 << 0)
#define PCDP_UART_ACTIVE_LOW (1 << 1)
#define PCDP_UART_PRIMARY_CONSOLE (1 << 2)
#define PCDP_UART_IRQ (1 << 6) /* in pci_func for rev < 3 */
#define PCDP_UART_PCI (1 << 7) /* in pci_func for rev < 3 */
struct pcdp_uart {
u8 type;
u8 bits;
u8 parity;
u8 stop_bits;
u8 pci_seg;
u8 pci_bus;
u8 pci_dev;
u8 pci_func;
u64 baud;
struct acpi_generic_address addr;
u16 pci_dev_id;
u16 pci_vendor_id;
u32 gsi;
u32 clock_rate;
u8 pci_prog_intfc;
u8 flags;
};
struct pcdp_vga {
u8 count; /* address space descriptors */
};
/* pcdp_device.flags */
#define PCDP_PRIMARY_CONSOLE 1
struct pcdp_device {
u8 type;
u8 flags;
u16 length;
u16 efi_index;
};
struct pcdp {
u8 signature[4];
u32 length;
u8 rev; /* PCDP v2.0 is rev 3 */
u8 chksum;
u8 oemid[6];
u8 oem_tabid[8];
u32 oem_rev;
u8 creator_id[4];
u32 creator_rev;
u32 num_uarts;
struct pcdp_uart uart[0]; /* actual size is num_uarts */
/* remainder of table is pcdp_device structures */
};
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