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1da177e4 LT |
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 | ||
1da177e4 LT |
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 | /* Add entry to specified host */ | |
30 | int (*add)(struct hpsb_host *host); | |
31 | ||
32 | /* Remove entry from specified host */ | |
33 | void (*remove)(struct hpsb_host *host); | |
34 | ||
35 | /* Cleanup called at module exit */ | |
36 | void (*cleanup)(void); | |
37 | ||
38 | /* The flag added to host->config_roms */ | |
39 | unsigned int flag; | |
40 | }; | |
41 | ||
42 | ||
43 | int hpsb_default_host_entry(struct hpsb_host *host) | |
44 | { | |
45 | struct csr1212_keyval *root; | |
46 | struct csr1212_keyval *vend_id = NULL; | |
47 | struct csr1212_keyval *text = NULL; | |
48 | char csr_name[128]; | |
49 | int ret; | |
50 | ||
51 | sprintf(csr_name, "Linux - %s", host->driver->name); | |
52 | root = host->csr.rom->root_kv; | |
53 | ||
54 | vend_id = csr1212_new_immediate(CSR1212_KV_ID_VENDOR, host->csr.guid_hi >> 8); | |
55 | text = csr1212_new_string_descriptor_leaf(csr_name); | |
56 | ||
57 | if (!vend_id || !text) { | |
58 | if (vend_id) | |
59 | csr1212_release_keyval(vend_id); | |
60 | if (text) | |
61 | csr1212_release_keyval(text); | |
62 | csr1212_destroy_csr(host->csr.rom); | |
63 | return -ENOMEM; | |
64 | } | |
65 | ||
66 | ret = csr1212_associate_keyval(vend_id, text); | |
67 | csr1212_release_keyval(text); | |
68 | ret |= csr1212_attach_keyval_to_directory(root, vend_id); | |
69 | csr1212_release_keyval(vend_id); | |
70 | if (ret != CSR1212_SUCCESS) { | |
71 | csr1212_destroy_csr(host->csr.rom); | |
72 | return -ENOMEM; | |
73 | } | |
74 | ||
75 | host->update_config_rom = 1; | |
76 | ||
77 | return 0; | |
78 | } | |
79 | ||
80 | ||
81 | #ifdef CONFIG_IEEE1394_CONFIG_ROM_IP1394 | |
82 | #include "eth1394.h" | |
83 | ||
84 | static struct csr1212_keyval *ip1394_ud; | |
85 | ||
86 | static int config_rom_ip1394_init(void) | |
87 | { | |
88 | struct csr1212_keyval *spec_id = NULL; | |
89 | struct csr1212_keyval *spec_desc = NULL; | |
90 | struct csr1212_keyval *ver = NULL; | |
91 | struct csr1212_keyval *ver_desc = NULL; | |
92 | int ret = -ENOMEM; | |
93 | ||
94 | ip1394_ud = csr1212_new_directory(CSR1212_KV_ID_UNIT); | |
95 | ||
96 | spec_id = csr1212_new_immediate(CSR1212_KV_ID_SPECIFIER_ID, | |
97 | ETHER1394_GASP_SPECIFIER_ID); | |
98 | spec_desc = csr1212_new_string_descriptor_leaf("IANA"); | |
99 | ver = csr1212_new_immediate(CSR1212_KV_ID_VERSION, | |
100 | ETHER1394_GASP_VERSION); | |
101 | ver_desc = csr1212_new_string_descriptor_leaf("IPv4"); | |
102 | ||
103 | if (!ip1394_ud || !spec_id || !spec_desc || !ver || !ver_desc) | |
104 | goto ip1394_fail; | |
105 | ||
106 | if (csr1212_associate_keyval(spec_id, spec_desc) == CSR1212_SUCCESS && | |
107 | csr1212_associate_keyval(ver, ver_desc) == CSR1212_SUCCESS && | |
108 | csr1212_attach_keyval_to_directory(ip1394_ud, spec_id) == CSR1212_SUCCESS && | |
109 | csr1212_attach_keyval_to_directory(ip1394_ud, ver) == CSR1212_SUCCESS) | |
110 | ret = 0; | |
111 | ||
112 | ip1394_fail: | |
113 | if (ret && ip1394_ud) { | |
114 | csr1212_release_keyval(ip1394_ud); | |
115 | ip1394_ud = NULL; | |
116 | } | |
117 | ||
118 | if (spec_id) | |
119 | csr1212_release_keyval(spec_id); | |
120 | if (spec_desc) | |
121 | csr1212_release_keyval(spec_desc); | |
122 | if (ver) | |
123 | csr1212_release_keyval(ver); | |
124 | if (ver_desc) | |
125 | csr1212_release_keyval(ver_desc); | |
126 | ||
127 | return ret; | |
128 | } | |
129 | ||
130 | static void config_rom_ip1394_cleanup(void) | |
131 | { | |
132 | if (ip1394_ud) { | |
133 | csr1212_release_keyval(ip1394_ud); | |
134 | ip1394_ud = NULL; | |
135 | } | |
136 | } | |
137 | ||
138 | static int config_rom_ip1394_add(struct hpsb_host *host) | |
139 | { | |
140 | if (!ip1394_ud) | |
141 | return -ENODEV; | |
142 | ||
143 | if (csr1212_attach_keyval_to_directory(host->csr.rom->root_kv, | |
144 | ip1394_ud) != CSR1212_SUCCESS) | |
145 | return -ENOMEM; | |
146 | ||
147 | return 0; | |
148 | } | |
149 | ||
150 | static void config_rom_ip1394_remove(struct hpsb_host *host) | |
151 | { | |
152 | csr1212_detach_keyval_from_directory(host->csr.rom->root_kv, ip1394_ud); | |
153 | } | |
154 | ||
155 | static struct hpsb_config_rom_entry ip1394_entry = { | |
156 | .name = "ip1394", | |
157 | .init = config_rom_ip1394_init, | |
158 | .add = config_rom_ip1394_add, | |
159 | .remove = config_rom_ip1394_remove, | |
160 | .cleanup = config_rom_ip1394_cleanup, | |
161 | .flag = HPSB_CONFIG_ROM_ENTRY_IP1394, | |
162 | }; | |
163 | #endif /* CONFIG_IEEE1394_CONFIG_ROM_IP1394 */ | |
164 | ||
165 | ||
166 | static struct hpsb_config_rom_entry *const config_rom_entries[] = { | |
167 | #ifdef CONFIG_IEEE1394_CONFIG_ROM_IP1394 | |
168 | &ip1394_entry, | |
169 | #endif | |
170 | NULL, | |
171 | }; | |
172 | ||
173 | ||
174 | int hpsb_init_config_roms(void) | |
175 | { | |
176 | int i, error = 0; | |
177 | ||
178 | for (i = 0; config_rom_entries[i]; i++) { | |
179 | if (!config_rom_entries[i]->init) | |
180 | continue; | |
181 | ||
182 | if (config_rom_entries[i]->init()) { | |
183 | HPSB_ERR("Failed to initialize config rom entry `%s'", | |
184 | config_rom_entries[i]->name); | |
185 | error = -1; | |
186 | } else | |
187 | HPSB_DEBUG("Initialized config rom entry `%s'", | |
188 | config_rom_entries[i]->name); | |
189 | } | |
190 | ||
191 | return error; | |
192 | } | |
193 | ||
194 | void hpsb_cleanup_config_roms(void) | |
195 | { | |
196 | int i; | |
197 | ||
198 | for (i = 0; config_rom_entries[i]; i++) { | |
199 | if (config_rom_entries[i]->cleanup) | |
200 | config_rom_entries[i]->cleanup(); | |
201 | } | |
202 | } | |
203 | ||
204 | int hpsb_add_extra_config_roms(struct hpsb_host *host) | |
205 | { | |
206 | int i, error = 0; | |
207 | ||
208 | for (i = 0; config_rom_entries[i]; i++) { | |
209 | if (config_rom_entries[i]->add(host)) { | |
210 | HPSB_ERR("fw-host%d: Failed to attach config rom entry `%s'", | |
211 | host->id, config_rom_entries[i]->name); | |
212 | error = -1; | |
213 | } else { | |
214 | host->config_roms |= config_rom_entries[i]->flag; | |
215 | host->update_config_rom = 1; | |
216 | } | |
217 | } | |
218 | ||
219 | return error; | |
220 | } | |
221 | ||
222 | void hpsb_remove_extra_config_roms(struct hpsb_host *host) | |
223 | { | |
224 | int i; | |
225 | ||
226 | for (i = 0; config_rom_entries[i]; i++) { | |
227 | if (!(host->config_roms & config_rom_entries[i]->flag)) | |
228 | continue; | |
229 | ||
230 | config_rom_entries[i]->remove(host); | |
231 | ||
232 | host->config_roms &= ~config_rom_entries[i]->flag; | |
233 | host->update_config_rom = 1; | |
234 | } | |
235 | } |