1 /*
2 * IEEE 1394 for Linux
3 *
4 * ConfigROM entries
5 *
6 * Copyright (C) 2004 Ben Collins
7 *
8 * This code is licensed under the GPL. See the file COPYING in the root
9 * directory of the kernel sources for details.
10 */
11
12 #include <linux/types.h>
13
14 #include "csr1212.h"
15 #include "ieee1394.h"
16 #include "ieee1394_types.h"
17 #include "hosts.h"
18 #include "ieee1394_core.h"
19 #include "highlevel.h"
20 #include "csr.h"
21 #include "config_roms.h"
22
23 struct hpsb_config_rom_entry {
24 const char *name;
25
26 /* Base initialization, called at module load */
27 int (*init)(void);
28
29 /* Cleanup called at module exit */
30 void (*cleanup)(void);
31
32 /* The flag added to host->config_roms */
33 unsigned int flag;
34 };
35
36 /* The default host entry. This must succeed. */
37 int hpsb_default_host_entry(struct hpsb_host *host)
38 {
39 struct csr1212_keyval *root;
40 struct csr1212_keyval *vend_id = NULL;
41 struct csr1212_keyval *text = NULL;
42 char csr_name[128];
43 int ret;
44
45 sprintf(csr_name, "Linux - %s", host->driver->name);
46 root = host->csr.rom->root_kv;
47
48 vend_id = csr1212_new_immediate(CSR1212_KV_ID_VENDOR, host->csr.guid_hi >> 8);
49 text = csr1212_new_string_descriptor_leaf(csr_name);
50
51 if (!vend_id || !text) {
52 if (vend_id)
53 csr1212_release_keyval(vend_id);
54 if (text)
55 csr1212_release_keyval(text);
56 csr1212_destroy_csr(host->csr.rom);
57 return -ENOMEM;
58 }
59
60 csr1212_associate_keyval(vend_id, text);
61 csr1212_release_keyval(text);
62 ret = csr1212_attach_keyval_to_directory(root, vend_id);
63 csr1212_release_keyval(vend_id);
64 if (ret != CSR1212_SUCCESS) {
65 csr1212_destroy_csr(host->csr.rom);
66 return -ENOMEM;
67 }
68
69 host->update_config_rom = 1;
70
71 return 0;
72 }
73
74
75 #ifdef CONFIG_IEEE1394_ETH1394_ROM_ENTRY
76 #include "eth1394.h"
77
78 static struct csr1212_keyval *ip1394_ud;
79
80 static int config_rom_ip1394_init(void)
81 {
82 struct csr1212_keyval *spec_id = NULL;
83 struct csr1212_keyval *spec_desc = NULL;
84 struct csr1212_keyval *ver = NULL;
85 struct csr1212_keyval *ver_desc = NULL;
86 int ret = -ENOMEM;
87
88 ip1394_ud = csr1212_new_directory(CSR1212_KV_ID_UNIT);
89
90 spec_id = csr1212_new_immediate(CSR1212_KV_ID_SPECIFIER_ID,
91 ETHER1394_GASP_SPECIFIER_ID);
92 spec_desc = csr1212_new_string_descriptor_leaf("IANA");
93 ver = csr1212_new_immediate(CSR1212_KV_ID_VERSION,
94 ETHER1394_GASP_VERSION);
95 ver_desc = csr1212_new_string_descriptor_leaf("IPv4");
96
97 if (!ip1394_ud || !spec_id || !spec_desc || !ver || !ver_desc)
98 goto ip1394_fail;
99
100 csr1212_associate_keyval(spec_id, spec_desc);
101 csr1212_associate_keyval(ver, ver_desc);
102 if (csr1212_attach_keyval_to_directory(ip1394_ud, spec_id)
103 == CSR1212_SUCCESS &&
104 csr1212_attach_keyval_to_directory(ip1394_ud, ver)
105 == CSR1212_SUCCESS)
106 ret = 0;
107
108 ip1394_fail:
109 if (ret && ip1394_ud) {
110 csr1212_release_keyval(ip1394_ud);
111 ip1394_ud = NULL;
112 }
113
114 if (spec_id)
115 csr1212_release_keyval(spec_id);
116 if (spec_desc)
117 csr1212_release_keyval(spec_desc);
118 if (ver)
119 csr1212_release_keyval(ver);
120 if (ver_desc)
121 csr1212_release_keyval(ver_desc);
122
123 return ret;
124 }
125
126 static void config_rom_ip1394_cleanup(void)
127 {
128 if (ip1394_ud) {
129 csr1212_release_keyval(ip1394_ud);
130 ip1394_ud = NULL;
131 }
132 }
133
134 int hpsb_config_rom_ip1394_add(struct hpsb_host *host)
135 {
136 if (!ip1394_ud)
137 return -ENODEV;
138
139 if (csr1212_attach_keyval_to_directory(host->csr.rom->root_kv,
140 ip1394_ud) != CSR1212_SUCCESS)
141 return -ENOMEM;
142
143 host->config_roms |= HPSB_CONFIG_ROM_ENTRY_IP1394;
144 host->update_config_rom = 1;
145 return 0;
146 }
147 EXPORT_SYMBOL_GPL(hpsb_config_rom_ip1394_add);
148
149 void hpsb_config_rom_ip1394_remove(struct hpsb_host *host)
150 {
151 csr1212_detach_keyval_from_directory(host->csr.rom->root_kv, ip1394_ud);
152 host->config_roms &= ~HPSB_CONFIG_ROM_ENTRY_IP1394;
153 host->update_config_rom = 1;
154 }
155 EXPORT_SYMBOL_GPL(hpsb_config_rom_ip1394_remove);
156
157 static struct hpsb_config_rom_entry ip1394_entry = {
158 .name = "ip1394",
159 .init = config_rom_ip1394_init,
160 .cleanup = config_rom_ip1394_cleanup,
161 .flag = HPSB_CONFIG_ROM_ENTRY_IP1394,
162 };
163
164 #endif /* CONFIG_IEEE1394_ETH1394_ROM_ENTRY */
165
166 static struct hpsb_config_rom_entry *const config_rom_entries[] = {
167 #ifdef CONFIG_IEEE1394_ETH1394_ROM_ENTRY
168 &ip1394_entry,
169 #endif
170 };
171
172 /* Initialize all config roms */
173 int hpsb_init_config_roms(void)
174 {
175 int i, error = 0;
176
177 for (i = 0; i < ARRAY_SIZE(config_rom_entries); i++)
178 if (config_rom_entries[i]->init()) {
179 HPSB_ERR("Failed to initialize config rom entry `%s'",
180 config_rom_entries[i]->name);
181 error = -1;
182 }
183
184 return error;
185 }
186
187 /* Cleanup all config roms */
188 void hpsb_cleanup_config_roms(void)
189 {
190 int i;
191
192 for (i = 0; i < ARRAY_SIZE(config_rom_entries); i++)
193 config_rom_entries[i]->cleanup();
194 }
195
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