109 lines
2.5 KiB
C
109 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Definitions for PCDP-defined console devices
|
|
*
|
|
* For DIG64_HCDPv10a_01.pdf and DIG64_PCDPv20.pdf (v1.0a and v2.0 resp.),
|
|
* please see <http://www.dig64.org/specifications/>
|
|
*
|
|
* (c) Copyright 2002, 2004 Hewlett-Packard Development Company, L.P.
|
|
* Khalid Aziz <khalid.aziz@hp.com>
|
|
* Bjorn Helgaas <bjorn.helgaas@hp.com>
|
|
*/
|
|
|
|
#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;
|
|
u16 conout_index;
|
|
u32 reserved;
|
|
} __attribute__((packed));
|
|
|
|
#define PCDP_IF_PCI 1
|
|
|
|
/* pcdp_if_pci.trans */
|
|
#define PCDP_PCI_TRANS_IOPORT 0x02
|
|
#define PCDP_PCI_TRANS_MMIO 0x01
|
|
|
|
struct pcdp_if_pci {
|
|
u8 interconnect;
|
|
u8 reserved;
|
|
u16 length;
|
|
u8 segment;
|
|
u8 bus;
|
|
u8 dev;
|
|
u8 fun;
|
|
u16 dev_id;
|
|
u16 vendor_id;
|
|
u32 acpi_interrupt;
|
|
u64 mmio_tra;
|
|
u64 ioport_tra;
|
|
u8 flags;
|
|
u8 trans;
|
|
} __attribute__((packed));
|
|
|
|
struct pcdp_vga {
|
|
u8 count; /* address space descriptors */
|
|
} __attribute__((packed));
|
|
|
|
/* pcdp_device.flags */
|
|
#define PCDP_PRIMARY_CONSOLE 1
|
|
|
|
struct pcdp_device {
|
|
u8 type;
|
|
u8 flags;
|
|
u16 length;
|
|
u16 efi_index;
|
|
/* next data is pcdp_if_pci or pcdp_if_acpi (not yet supported) */
|
|
/* next data is device specific type (currently only pcdp_vga) */
|
|
} __attribute__((packed));
|
|
|
|
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[]; /* actual size is num_uarts */
|
|
/* remainder of table is pcdp_device structures */
|
|
} __attribute__((packed));
|