firewire: Make sure we wait for DMA to stop before we reprogram it.
[deliverable/linux.git] / drivers / firewire / fw-device.h
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1/* -*- c-basic-offset: 8 -*-
2 *
3 * fw-device.h - Device probing and sysfs code.
4 *
5 * Copyright (C) 2005-2006 Kristian Hoegsberg <krh@bitplanet.net>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software Foundation,
19 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 */
21
22#ifndef __fw_device_h
23#define __fw_device_h
24
25#include <linux/fs.h>
26#include <linux/cdev.h>
27
28enum fw_device_state {
29 FW_DEVICE_INITIALIZING,
30 FW_DEVICE_RUNNING,
5af4e5ea 31 FW_DEVICE_SHUTDOWN,
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32};
33
34struct fw_device {
35 int state;
36 struct fw_node *node;
37 int node_id;
38 int generation;
39 struct fw_card *card;
40 struct device device;
41 struct cdev cdev;
42 __be32 *config_rom;
43 size_t config_rom_length;
44 int config_rom_retries;
45 struct delayed_work work;
46};
47
48static inline struct fw_device *
49fw_device(struct device *dev)
50{
5e20c282 51 return container_of(dev, struct fw_device, device);
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52}
53
54struct fw_device *fw_device_get(struct fw_device *device);
55void fw_device_put(struct fw_device *device);
56int fw_device_enable_phys_dma(struct fw_device *device);
57
58struct fw_unit {
59 struct device device;
60 u32 *directory;
61};
62
63static inline struct fw_unit *
64fw_unit(struct device *dev)
65{
5e20c282 66 return container_of(dev, struct fw_unit, device);
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67}
68
69#define CSR_OFFSET 0x40
70#define CSR_LEAF 0x80
71#define CSR_DIRECTORY 0xc0
72
73#define CSR_DESCRIPTOR 0x01
74#define CSR_VENDOR 0x03
75#define CSR_HARDWARE_VERSION 0x04
76#define CSR_NODE_CAPABILITIES 0x0c
77#define CSR_UNIT 0x11
78#define CSR_SPECIFIER_ID 0x12
79#define CSR_VERSION 0x13
80#define CSR_DEPENDENT_INFO 0x14
81#define CSR_MODEL 0x17
82#define CSR_INSTANCE 0x18
83
84#define SBP2_COMMAND_SET_SPECIFIER 0x38
85#define SBP2_COMMAND_SET 0x39
86#define SBP2_COMMAND_SET_REVISION 0x3b
87#define SBP2_FIRMWARE_REVISION 0x3c
88
89struct fw_csr_iterator {
90 u32 *p;
91 u32 *end;
92};
93
94void fw_csr_iterator_init(struct fw_csr_iterator *ci, u32 *p);
95int fw_csr_iterator_next(struct fw_csr_iterator *ci,
96 int *key, int *value);
97
98#define FW_MATCH_VENDOR 0x0001
99#define FW_MATCH_MODEL 0x0002
100#define FW_MATCH_SPECIFIER_ID 0x0004
101#define FW_MATCH_VERSION 0x0008
102
103struct fw_device_id {
104 u32 match_flags;
105 u32 vendor;
106 u32 model;
107 u32 specifier_id;
108 u32 version;
109 void *driver_data;
110};
111
112struct fw_driver {
113 struct device_driver driver;
114 /* Called when the parent device sits through a bus reset. */
115 void (*update) (struct fw_unit *unit);
21ebcd12 116 const struct fw_device_id *id_table;
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117};
118
119static inline struct fw_driver *
120fw_driver(struct device_driver *drv)
121{
5e20c282 122 return container_of(drv, struct fw_driver, driver);
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123}
124
21ebcd12 125extern const struct file_operations fw_device_ops;
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687198bb 127#endif /* __fw_device_h */
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