212 lines
5.4 KiB
C
212 lines
5.4 KiB
C
/* -*- c-basic-offset: 8 -*-
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*
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* fw-device-cdev.h -- Char device interface.
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*
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* Copyright (C) 2005-2006 Kristian Hoegsberg <krh@bitplanet.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __fw_cdev_h
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#define __fw_cdev_h
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#include <asm/ioctl.h>
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#include <asm/types.h>
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#define TCODE_WRITE_QUADLET_REQUEST 0
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#define TCODE_WRITE_BLOCK_REQUEST 1
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#define TCODE_WRITE_RESPONSE 2
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#define TCODE_READ_QUADLET_REQUEST 4
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#define TCODE_READ_BLOCK_REQUEST 5
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#define TCODE_READ_QUADLET_RESPONSE 6
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#define TCODE_READ_BLOCK_RESPONSE 7
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#define TCODE_CYCLE_START 8
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#define TCODE_LOCK_REQUEST 9
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#define TCODE_STREAM_DATA 10
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#define TCODE_LOCK_RESPONSE 11
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#define TCODE_LOCK_MASK_SWAP 0x11
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#define TCODE_LOCK_COMPARE_SWAP 0x12
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#define TCODE_LOCK_FETCH_ADD 0x13
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#define TCODE_LOCK_LITTLE_ADD 0x14
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#define TCODE_LOCK_BOUNDED_ADD 0x15
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#define TCODE_LOCK_WRAP_ADD 0x16
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#define TCODE_LOCK_VENDOR_DEPENDENT 0x17
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#define RCODE_COMPLETE 0x0
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#define RCODE_CONFLICT_ERROR 0x4
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#define RCODE_DATA_ERROR 0x5
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#define RCODE_TYPE_ERROR 0x6
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#define RCODE_ADDRESS_ERROR 0x7
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#define SCODE_100 0x0
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#define SCODE_200 0x1
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#define SCODE_400 0x2
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#define SCODE_800 0x3
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#define SCODE_1600 0x4
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#define SCODE_3200 0x5
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#define FW_CDEV_EVENT_BUS_RESET 0x00
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#define FW_CDEV_EVENT_RESPONSE 0x01
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#define FW_CDEV_EVENT_REQUEST 0x02
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#define FW_CDEV_EVENT_ISO_INTERRUPT 0x03
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/* The 'closure' fields are for user space to use. Data passed in the
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* 'closure' field for a request will be returned in the corresponding
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* event. It's a 64-bit type so that it's a fixed size type big
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* enough to hold a pointer on all platforms. */
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struct fw_cdev_event_bus_reset {
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__u32 type;
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__u32 node_id;
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__u32 local_node_id;
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__u32 bm_node_id;
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__u32 irm_node_id;
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__u32 root_node_id;
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__u32 generation;
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};
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struct fw_cdev_event_response {
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__u32 type;
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__u32 rcode;
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__u64 closure;
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__u32 length;
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__u32 data[0];
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};
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struct fw_cdev_event_request {
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__u32 type;
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__u32 tcode;
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__u64 offset;
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__u64 closure;
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__u32 serial;
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__u32 length;
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__u32 data[0];
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};
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struct fw_cdev_event_iso_interrupt {
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__u32 type;
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__u32 cycle;
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__u64 closure;
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__u32 header_length; /* Length in bytes of following headers. */
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__u32 header[0];
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};
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#define FW_CDEV_IOC_GET_INFO _IO('#', 0x00)
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#define FW_CDEV_IOC_SEND_REQUEST _IO('#', 0x01)
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#define FW_CDEV_IOC_ALLOCATE _IO('#', 0x02)
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#define FW_CDEV_IOC_SEND_RESPONSE _IO('#', 0x03)
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#define FW_CDEV_IOC_INITIATE_BUS_RESET _IO('#', 0x04)
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#define FW_CDEV_IOC_CREATE_ISO_CONTEXT _IO('#', 0x05)
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#define FW_CDEV_IOC_QUEUE_ISO _IO('#', 0x06)
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#define FW_CDEV_IOC_START_ISO _IO('#', 0x07)
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#define FW_CDEV_IOC_STOP_ISO _IO('#', 0x08)
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/* FW_CDEV_VERSION History
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*
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* 1 Feb 18, 2007: Initial version.
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*/
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#define FW_CDEV_VERSION 1
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struct fw_cdev_get_info {
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/* The version field is just a running serial number. We
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* never break backwards compatibility. Userspace passes in
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* the version it expects and the kernel passes back the
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* highest version it can provide. Even if the structs in
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* this interface are extended in a later version, the kernel
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* will not copy back more data than what was present in the
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* interface version userspace expects. */
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__u32 version;
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/* If non-zero, at most rom_length bytes of config rom will be
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* copied into that user space address. In either case,
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* rom_length is updated with the actual length of the config
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* rom. */
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__u32 rom_length;
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__u64 rom;
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/* If non-zero, a fw_cdev_event_bus_reset struct will be
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* copied here with the current state of the bus. */
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__u64 bus_reset;
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};
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struct fw_cdev_send_request {
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__u32 tcode;
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__u32 length;
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__u64 offset;
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__u64 closure;
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__u64 data;
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};
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struct fw_cdev_send_response {
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__u32 rcode;
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__u32 length;
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__u64 data;
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__u32 serial;
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};
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struct fw_cdev_allocate {
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__u64 offset;
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__u64 closure;
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__u32 length;
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};
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#define FW_CDEV_LONG_RESET 0
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#define FW_CDEV_SHORT_RESET 1
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struct fw_cdev_initiate_bus_reset {
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__u32 type;
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};
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#define FW_CDEV_ISO_CONTEXT_TRANSMIT 0
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#define FW_CDEV_ISO_CONTEXT_RECEIVE 1
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#define FW_CDEV_ISO_CONTEXT_MATCH_TAG0 1
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#define FW_CDEV_ISO_CONTEXT_MATCH_TAG1 2
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#define FW_CDEV_ISO_CONTEXT_MATCH_TAG2 4
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#define FW_CDEV_ISO_CONTEXT_MATCH_TAG3 8
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#define FW_CDEV_ISO_CONTEXT_MATCH_ALL_TAGS 15
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struct fw_cdev_create_iso_context {
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__u32 type;
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__u32 header_size;
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__u32 channel;
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__u32 speed;
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__u32 sync;
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__u32 tags;
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};
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struct fw_cdev_iso_packet {
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__u16 payload_length; /* Length of indirect payload. */
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__u32 interrupt : 1; /* Generate interrupt on this packet */
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__u32 skip : 1; /* Set to not send packet at all. */
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__u32 tag : 2;
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__u32 sy : 4;
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__u32 header_length : 8; /* Length of immediate header. */
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__u32 header[0];
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};
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struct fw_cdev_queue_iso {
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__u32 size;
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__u64 packets;
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__u64 data;
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};
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struct fw_cdev_start_iso {
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__s32 cycle;
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};
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#endif /* __fw_cdev_h */
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