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1da177e4 LT |
1 | /* |
2 | * Kernel CAPI 2.0 Module - /proc/capi handling | |
3 | * | |
4 | * Copyright 1999 by Carsten Paeth <calle@calle.de> | |
5 | * Copyright 2002 by Kai Germaschewski <kai@germaschewski.name> | |
6 | * | |
7 | * This software may be used and distributed according to the terms | |
8 | * of the GNU General Public License, incorporated herein by reference. | |
9 | * | |
10 | */ | |
11 | ||
12 | ||
13 | #include "kcapi.h" | |
14 | #include <linux/proc_fs.h> | |
15 | #include <linux/seq_file.h> | |
16 | #include <linux/init.h> | |
17 | ||
18 | static char * | |
19 | cardstate2str(unsigned short cardstate) | |
20 | { | |
21 | switch (cardstate) { | |
22 | case CARD_DETECTED: return "detected"; | |
23 | case CARD_LOADING: return "loading"; | |
24 | case CARD_RUNNING: return "running"; | |
25 | default: return "???"; | |
26 | } | |
27 | } | |
28 | ||
29 | // /proc/capi | |
30 | // =========================================================================== | |
31 | ||
32 | // /proc/capi/controller: | |
33 | // cnr driver cardstate name driverinfo | |
34 | // /proc/capi/contrstats: | |
35 | // cnr nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt | |
36 | // --------------------------------------------------------------------------- | |
37 | ||
38 | static void *controller_start(struct seq_file *seq, loff_t *pos) | |
39 | { | |
40 | if (*pos < CAPI_MAXCONTR) | |
41 | return &capi_cards[*pos]; | |
42 | ||
43 | return NULL; | |
44 | } | |
45 | ||
46 | static void *controller_next(struct seq_file *seq, void *v, loff_t *pos) | |
47 | { | |
48 | ++*pos; | |
49 | if (*pos < CAPI_MAXCONTR) | |
50 | return &capi_cards[*pos]; | |
51 | ||
52 | return NULL; | |
53 | } | |
54 | ||
55 | static void controller_stop(struct seq_file *seq, void *v) | |
56 | { | |
57 | } | |
58 | ||
59 | static int controller_show(struct seq_file *seq, void *v) | |
60 | { | |
61 | struct capi_ctr *ctr = *(struct capi_ctr **) v; | |
62 | ||
63 | if (!ctr) | |
64 | return 0; | |
65 | ||
66 | seq_printf(seq, "%d %-10s %-8s %-16s %s\n", | |
67 | ctr->cnr, ctr->driver_name, | |
68 | cardstate2str(ctr->cardstate), | |
69 | ctr->name, | |
70 | ctr->procinfo ? ctr->procinfo(ctr) : ""); | |
71 | ||
72 | return 0; | |
73 | } | |
74 | ||
75 | static int contrstats_show(struct seq_file *seq, void *v) | |
76 | { | |
77 | struct capi_ctr *ctr = *(struct capi_ctr **) v; | |
78 | ||
79 | if (!ctr) | |
80 | return 0; | |
81 | ||
82 | seq_printf(seq, "%d %lu %lu %lu %lu\n", | |
83 | ctr->cnr, | |
84 | ctr->nrecvctlpkt, | |
85 | ctr->nrecvdatapkt, | |
86 | ctr->nsentctlpkt, | |
87 | ctr->nsentdatapkt); | |
88 | ||
89 | return 0; | |
90 | } | |
91 | ||
408b664a | 92 | static struct seq_operations seq_controller_ops = { |
1da177e4 LT |
93 | .start = controller_start, |
94 | .next = controller_next, | |
95 | .stop = controller_stop, | |
96 | .show = controller_show, | |
97 | }; | |
98 | ||
408b664a | 99 | static struct seq_operations seq_contrstats_ops = { |
1da177e4 LT |
100 | .start = controller_start, |
101 | .next = controller_next, | |
102 | .stop = controller_stop, | |
103 | .show = contrstats_show, | |
104 | }; | |
105 | ||
106 | static int seq_controller_open(struct inode *inode, struct file *file) | |
107 | { | |
108 | return seq_open(file, &seq_controller_ops); | |
109 | } | |
110 | ||
111 | static int seq_contrstats_open(struct inode *inode, struct file *file) | |
112 | { | |
113 | return seq_open(file, &seq_contrstats_ops); | |
114 | } | |
115 | ||
2b8693c0 | 116 | static const struct file_operations proc_controller_ops = { |
ac41cfd1 | 117 | .owner = THIS_MODULE, |
1da177e4 LT |
118 | .open = seq_controller_open, |
119 | .read = seq_read, | |
120 | .llseek = seq_lseek, | |
121 | .release = seq_release, | |
122 | }; | |
123 | ||
2b8693c0 | 124 | static const struct file_operations proc_contrstats_ops = { |
ac41cfd1 | 125 | .owner = THIS_MODULE, |
1da177e4 LT |
126 | .open = seq_contrstats_open, |
127 | .read = seq_read, | |
128 | .llseek = seq_lseek, | |
129 | .release = seq_release, | |
130 | }; | |
131 | ||
132 | // /proc/capi/applications: | |
133 | // applid l3cnt dblkcnt dblklen #ncci recvqueuelen | |
134 | // /proc/capi/applstats: | |
135 | // applid nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt | |
136 | // --------------------------------------------------------------------------- | |
137 | ||
138 | static void * | |
139 | applications_start(struct seq_file *seq, loff_t *pos) | |
140 | { | |
141 | if (*pos < CAPI_MAXAPPL) | |
142 | return &capi_applications[*pos]; | |
143 | ||
144 | return NULL; | |
145 | } | |
146 | ||
147 | static void * | |
148 | applications_next(struct seq_file *seq, void *v, loff_t *pos) | |
149 | { | |
150 | ++*pos; | |
151 | if (*pos < CAPI_MAXAPPL) | |
152 | return &capi_applications[*pos]; | |
153 | ||
154 | return NULL; | |
155 | } | |
156 | ||
157 | static void | |
158 | applications_stop(struct seq_file *seq, void *v) | |
159 | { | |
160 | } | |
161 | ||
162 | static int | |
163 | applications_show(struct seq_file *seq, void *v) | |
164 | { | |
165 | struct capi20_appl *ap = *(struct capi20_appl **) v; | |
166 | ||
167 | if (!ap) | |
168 | return 0; | |
169 | ||
170 | seq_printf(seq, "%u %d %d %d\n", | |
171 | ap->applid, | |
172 | ap->rparam.level3cnt, | |
173 | ap->rparam.datablkcnt, | |
174 | ap->rparam.datablklen); | |
175 | ||
176 | return 0; | |
177 | } | |
178 | ||
179 | static int | |
180 | applstats_show(struct seq_file *seq, void *v) | |
181 | { | |
182 | struct capi20_appl *ap = *(struct capi20_appl **) v; | |
183 | ||
184 | if (!ap) | |
185 | return 0; | |
186 | ||
187 | seq_printf(seq, "%u %lu %lu %lu %lu\n", | |
188 | ap->applid, | |
189 | ap->nrecvctlpkt, | |
190 | ap->nrecvdatapkt, | |
191 | ap->nsentctlpkt, | |
192 | ap->nsentdatapkt); | |
193 | ||
194 | return 0; | |
195 | } | |
196 | ||
408b664a | 197 | static struct seq_operations seq_applications_ops = { |
1da177e4 LT |
198 | .start = applications_start, |
199 | .next = applications_next, | |
200 | .stop = applications_stop, | |
201 | .show = applications_show, | |
202 | }; | |
203 | ||
408b664a | 204 | static struct seq_operations seq_applstats_ops = { |
1da177e4 LT |
205 | .start = applications_start, |
206 | .next = applications_next, | |
207 | .stop = applications_stop, | |
208 | .show = applstats_show, | |
209 | }; | |
210 | ||
211 | static int | |
212 | seq_applications_open(struct inode *inode, struct file *file) | |
213 | { | |
214 | return seq_open(file, &seq_applications_ops); | |
215 | } | |
216 | ||
217 | static int | |
218 | seq_applstats_open(struct inode *inode, struct file *file) | |
219 | { | |
220 | return seq_open(file, &seq_applstats_ops); | |
221 | } | |
222 | ||
2b8693c0 | 223 | static const struct file_operations proc_applications_ops = { |
ac41cfd1 | 224 | .owner = THIS_MODULE, |
1da177e4 LT |
225 | .open = seq_applications_open, |
226 | .read = seq_read, | |
227 | .llseek = seq_lseek, | |
228 | .release = seq_release, | |
229 | }; | |
230 | ||
2b8693c0 | 231 | static const struct file_operations proc_applstats_ops = { |
ac41cfd1 | 232 | .owner = THIS_MODULE, |
1da177e4 LT |
233 | .open = seq_applstats_open, |
234 | .read = seq_read, | |
235 | .llseek = seq_lseek, | |
236 | .release = seq_release, | |
237 | }; | |
238 | ||
1da177e4 LT |
239 | // --------------------------------------------------------------------------- |
240 | ||
1da177e4 | 241 | static void *capi_driver_start(struct seq_file *seq, loff_t *pos) |
dfe925e8 | 242 | __acquires(&capi_drivers_list_lock) |
1da177e4 | 243 | { |
1da177e4 | 244 | read_lock(&capi_drivers_list_lock); |
2b7c3029 | 245 | return seq_list_start(&capi_drivers, *pos); |
1da177e4 LT |
246 | } |
247 | ||
248 | static void *capi_driver_next(struct seq_file *seq, void *v, loff_t *pos) | |
249 | { | |
2b7c3029 | 250 | return seq_list_next(v, &capi_drivers, pos); |
1da177e4 LT |
251 | } |
252 | ||
253 | static void capi_driver_stop(struct seq_file *seq, void *v) | |
dfe925e8 | 254 | __releases(&capi_drivers_list_lock) |
1da177e4 LT |
255 | { |
256 | read_unlock(&capi_drivers_list_lock); | |
257 | } | |
258 | ||
259 | static int capi_driver_show(struct seq_file *seq, void *v) | |
260 | { | |
2b7c3029 PE |
261 | struct capi_driver *drv = list_entry(v, struct capi_driver, list); |
262 | ||
1da177e4 LT |
263 | seq_printf(seq, "%-32s %s\n", drv->name, drv->revision); |
264 | return 0; | |
265 | } | |
266 | ||
408b664a | 267 | static struct seq_operations seq_capi_driver_ops = { |
1da177e4 LT |
268 | .start = capi_driver_start, |
269 | .next = capi_driver_next, | |
270 | .stop = capi_driver_stop, | |
271 | .show = capi_driver_show, | |
272 | }; | |
273 | ||
274 | static int | |
275 | seq_capi_driver_open(struct inode *inode, struct file *file) | |
276 | { | |
277 | int err; | |
278 | err = seq_open(file, &seq_capi_driver_ops); | |
279 | return err; | |
280 | } | |
281 | ||
2b8693c0 | 282 | static const struct file_operations proc_driver_ops = { |
ac41cfd1 | 283 | .owner = THIS_MODULE, |
1da177e4 LT |
284 | .open = seq_capi_driver_open, |
285 | .read = seq_read, | |
286 | .llseek = seq_lseek, | |
287 | .release = seq_release, | |
288 | }; | |
289 | ||
290 | // --------------------------------------------------------------------------- | |
291 | ||
292 | void __init | |
293 | kcapi_proc_init(void) | |
294 | { | |
295 | proc_mkdir("capi", NULL); | |
296 | proc_mkdir("capi/controllers", NULL); | |
ac41cfd1 DL |
297 | proc_create("capi/controller", 0, NULL, &proc_controller_ops); |
298 | proc_create("capi/contrstats", 0, NULL, &proc_contrstats_ops); | |
299 | proc_create("capi/applications", 0, NULL, &proc_applications_ops); | |
300 | proc_create("capi/applstats", 0, NULL, &proc_applstats_ops); | |
301 | proc_create("capi/driver", 0, NULL, &proc_driver_ops); | |
1da177e4 LT |
302 | } |
303 | ||
304 | void __exit | |
305 | kcapi_proc_exit(void) | |
306 | { | |
307 | remove_proc_entry("capi/driver", NULL); | |
308 | remove_proc_entry("capi/controller", NULL); | |
309 | remove_proc_entry("capi/contrstats", NULL); | |
310 | remove_proc_entry("capi/applications", NULL); | |
311 | remove_proc_entry("capi/applstats", NULL); | |
312 | remove_proc_entry("capi/controllers", NULL); | |
313 | remove_proc_entry("capi", NULL); | |
314 | } |