aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/ieee1394/config_roms.c
blob: 1b981207fa7683a4c515e660346ec178568fdd5c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
/*
 * IEEE 1394 for Linux
 *
 * ConfigROM  entries
 *
 * Copyright (C) 2004 Ben Collins
 *
 * This code is licensed under the GPL.  See the file COPYING in the root
 * directory of the kernel sources for details.
 */

#include <linux/types.h>

#include "csr1212.h"
#include "ieee1394.h"
#include "ieee1394_types.h"
#include "hosts.h"
#include "ieee1394_core.h"
#include "highlevel.h"
#include "csr.h"
#include "config_roms.h"

struct hpsb_config_rom_entry {
	const char *name;

	/* Base initialization, called at module load */
	int (*init)(void);

	/* Cleanup called at module exit */
	void (*cleanup)(void);

	/* The flag added to host->config_roms */
	unsigned int flag;
};

/* The default host entry. This must succeed. */
int hpsb_default_host_entry(struct hpsb_host *host)
{
	struct csr1212_keyval *root;
	struct csr1212_keyval *vend_id = NULL;
	struct csr1212_keyval *text = NULL;
	char csr_name[128];
	int ret;

	sprintf(csr_name, "Linux - %s", host->driver->name);
	root = host->csr.rom->root_kv;

	vend_id = csr1212_new_immediate(CSR1212_KV_ID_VENDOR, host->csr.guid_hi >> 8);
	text = csr1212_new_string_descriptor_leaf(csr_name);

	if (!vend_id || !text) {
		if (vend_id)
			csr1212_release_keyval(vend_id);
		if (text)
			csr1212_release_keyval(text);
		csr1212_destroy_csr(host->csr.rom);
		return -ENOMEM;
	}

	csr1212_associate_keyval(vend_id, text);
	csr1212_release_keyval(text);
	ret = csr1212_attach_keyval_to_directory(root, vend_id);
	csr1212_release_keyval(vend_id);
	if (ret != CSR1212_SUCCESS) {
		csr1212_destroy_csr(host->csr.rom);
		return -ENOMEM;
	}

	host->update_config_rom = 1;

	return 0;
}


#ifdef CONFIG_IEEE1394_ETH1394_ROM_ENTRY
#include "eth1394.h"

static struct csr1212_keyval *ip1394_ud;

static int config_rom_ip1394_init(void)
{
	struct csr1212_keyval *spec_id = NULL;
	struct csr1212_keyval *spec_desc = NULL;
	struct csr1212_keyval *ver = NULL;
	struct csr1212_keyval *ver_desc = NULL;
	int ret = -ENOMEM;

	ip1394_ud = csr1212_new_directory(CSR1212_KV_ID_UNIT);

	spec_id = csr1212_new_immediate(CSR1212_KV_ID_SPECIFIER_ID,
					ETHER1394_GASP_SPECIFIER_ID);
	spec_desc = csr1212_new_string_descriptor_leaf("IANA");
	ver = csr1212_new_immediate(CSR1212_KV_ID_VERSION,
				    ETHER1394_GASP_VERSION);
	ver_desc = csr1212_new_string_descriptor_leaf("IPv4");

	if (!ip1394_ud || !spec_id || !spec_desc || !ver || !ver_desc)
		goto ip1394_fail;

	csr1212_associate_keyval(spec_id, spec_desc);
	csr1212_associate_keyval(ver, ver_desc);
	if (csr1212_attach_keyval_to_directory(ip1394_ud, spec_id)
			== CSR1212_SUCCESS &&
	    csr1212_attach_keyval_to_directory(ip1394_ud, ver)
			== CSR1212_SUCCESS)
		ret = 0;

ip1394_fail:
	if (ret && ip1394_ud) {
		csr1212_release_keyval(ip1394_ud);
		ip1394_ud = NULL;
	}

	if (spec_id)
		csr1212_release_keyval(spec_id);
	if (spec_desc)
		csr1212_release_keyval(spec_desc);
	if (ver)
		csr1212_release_keyval(ver);
	if (ver_desc)
		csr1212_release_keyval(ver_desc);

	return ret;
}

static void config_rom_ip1394_cleanup(void)
{
	if (ip1394_ud) {
		csr1212_release_keyval(ip1394_ud);
		ip1394_ud = NULL;
	}
}

int hpsb_config_rom_ip1394_add(struct hpsb_host *host)
{
	if (!ip1394_ud)
		return -ENODEV;

	if (csr1212_attach_keyval_to_directory(host->csr.rom->root_kv,
					       ip1394_ud) != CSR1212_SUCCESS)
		return -ENOMEM;

	host->config_roms |= HPSB_CONFIG_ROM_ENTRY_IP1394;
	host->update_config_rom = 1;
	return 0;
}
EXPORT_SYMBOL_GPL(hpsb_config_rom_ip1394_add);

void hpsb_config_rom_ip1394_remove(struct hpsb_host *host)
{
	csr1212_detach_keyval_from_directory(host->csr.rom->root_kv, ip1394_ud);
	host->config_roms &= ~HPSB_CONFIG_ROM_ENTRY_IP1394;
	host->update_config_rom = 1;
}
EXPORT_SYMBOL_GPL(hpsb_config_rom_ip1394_remove);

static struct hpsb_config_rom_entry ip1394_entry = {
	.name		= "ip1394",
	.init		= config_rom_ip1394_init,
	.cleanup	= config_rom_ip1394_cleanup,
	.flag		= HPSB_CONFIG_ROM_ENTRY_IP1394,
};

#endif /* CONFIG_IEEE1394_ETH1394_ROM_ENTRY */

static struct hpsb_config_rom_entry *const config_rom_entries[] = {
#ifdef CONFIG_IEEE1394_ETH1394_ROM_ENTRY
	&ip1394_entry,
#endif
};

/* Initialize all config roms */
int hpsb_init_config_roms(void)
{
	int i, error = 0;

	for (i = 0; i < ARRAY_SIZE(config_rom_entries); i++)
		if (config_rom_entries[i]->init()) {
			HPSB_ERR("Failed to initialize config rom entry `%s'",
				 config_rom_entries[i]->name);
			error = -1;
		}

	return error;
}

/* Cleanup all config roms */
void hpsb_cleanup_config_roms(void)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(config_rom_entries); i++)
		config_rom_entries[i]->cleanup();
}