cregit-Linux how code gets into the kernel

Release 4.7 drivers/firmware/pcdp.h

Directory: drivers/firmware
/*
 * 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>
 *
 * 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;
	
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[0];	/* actual size is num_uarts */
	/* remainder of table is pcdp_device structures */
} __attribute__((packed));

Overall Contributors

PersonTokensPropCommitsCommitProp
bjorn helgaasbjorn helgaas21067.96%125.00%
mark maulemark maule9229.77%125.00%
david mosberger-tangdavid mosberger-tang61.94%125.00%
justin mattockjustin mattock10.32%125.00%
Total309100.00%4100.00%
Directory: drivers/firmware
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