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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 | ||
116 | static struct file_operations proc_controller_ops = { | |
117 | .open = seq_controller_open, | |
118 | .read = seq_read, | |
119 | .llseek = seq_lseek, | |
120 | .release = seq_release, | |
121 | }; | |
122 | ||
123 | static struct file_operations proc_contrstats_ops = { | |
124 | .open = seq_contrstats_open, | |
125 | .read = seq_read, | |
126 | .llseek = seq_lseek, | |
127 | .release = seq_release, | |
128 | }; | |
129 | ||
130 | // /proc/capi/applications: | |
131 | // applid l3cnt dblkcnt dblklen #ncci recvqueuelen | |
132 | // /proc/capi/applstats: | |
133 | // applid nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt | |
134 | // --------------------------------------------------------------------------- | |
135 | ||
136 | static void * | |
137 | applications_start(struct seq_file *seq, loff_t *pos) | |
138 | { | |
139 | if (*pos < CAPI_MAXAPPL) | |
140 | return &capi_applications[*pos]; | |
141 | ||
142 | return NULL; | |
143 | } | |
144 | ||
145 | static void * | |
146 | applications_next(struct seq_file *seq, void *v, loff_t *pos) | |
147 | { | |
148 | ++*pos; | |
149 | if (*pos < CAPI_MAXAPPL) | |
150 | return &capi_applications[*pos]; | |
151 | ||
152 | return NULL; | |
153 | } | |
154 | ||
155 | static void | |
156 | applications_stop(struct seq_file *seq, void *v) | |
157 | { | |
158 | } | |
159 | ||
160 | static int | |
161 | applications_show(struct seq_file *seq, void *v) | |
162 | { | |
163 | struct capi20_appl *ap = *(struct capi20_appl **) v; | |
164 | ||
165 | if (!ap) | |
166 | return 0; | |
167 | ||
168 | seq_printf(seq, "%u %d %d %d\n", | |
169 | ap->applid, | |
170 | ap->rparam.level3cnt, | |
171 | ap->rparam.datablkcnt, | |
172 | ap->rparam.datablklen); | |
173 | ||
174 | return 0; | |
175 | } | |
176 | ||
177 | static int | |
178 | applstats_show(struct seq_file *seq, void *v) | |
179 | { | |
180 | struct capi20_appl *ap = *(struct capi20_appl **) v; | |
181 | ||
182 | if (!ap) | |
183 | return 0; | |
184 | ||
185 | seq_printf(seq, "%u %lu %lu %lu %lu\n", | |
186 | ap->applid, | |
187 | ap->nrecvctlpkt, | |
188 | ap->nrecvdatapkt, | |
189 | ap->nsentctlpkt, | |
190 | ap->nsentdatapkt); | |
191 | ||
192 | return 0; | |
193 | } | |
194 | ||
408b664a | 195 | static struct seq_operations seq_applications_ops = { |
1da177e4 LT |
196 | .start = applications_start, |
197 | .next = applications_next, | |
198 | .stop = applications_stop, | |
199 | .show = applications_show, | |
200 | }; | |
201 | ||
408b664a | 202 | static struct seq_operations seq_applstats_ops = { |
1da177e4 LT |
203 | .start = applications_start, |
204 | .next = applications_next, | |
205 | .stop = applications_stop, | |
206 | .show = applstats_show, | |
207 | }; | |
208 | ||
209 | static int | |
210 | seq_applications_open(struct inode *inode, struct file *file) | |
211 | { | |
212 | return seq_open(file, &seq_applications_ops); | |
213 | } | |
214 | ||
215 | static int | |
216 | seq_applstats_open(struct inode *inode, struct file *file) | |
217 | { | |
218 | return seq_open(file, &seq_applstats_ops); | |
219 | } | |
220 | ||
221 | static struct file_operations proc_applications_ops = { | |
222 | .open = seq_applications_open, | |
223 | .read = seq_read, | |
224 | .llseek = seq_lseek, | |
225 | .release = seq_release, | |
226 | }; | |
227 | ||
228 | static struct file_operations proc_applstats_ops = { | |
229 | .open = seq_applstats_open, | |
230 | .read = seq_read, | |
231 | .llseek = seq_lseek, | |
232 | .release = seq_release, | |
233 | }; | |
234 | ||
235 | static void | |
99ac48f5 | 236 | create_seq_entry(char *name, mode_t mode, const struct file_operations *f) |
1da177e4 LT |
237 | { |
238 | struct proc_dir_entry *entry; | |
239 | entry = create_proc_entry(name, mode, NULL); | |
240 | if (entry) | |
241 | entry->proc_fops = f; | |
242 | } | |
243 | ||
244 | // --------------------------------------------------------------------------- | |
245 | ||
246 | ||
247 | static __inline__ struct capi_driver *capi_driver_get_idx(loff_t pos) | |
248 | { | |
249 | struct capi_driver *drv = NULL; | |
250 | struct list_head *l; | |
251 | loff_t i; | |
252 | ||
253 | i = 0; | |
254 | list_for_each(l, &capi_drivers) { | |
255 | drv = list_entry(l, struct capi_driver, list); | |
256 | if (i++ == pos) | |
257 | return drv; | |
258 | } | |
259 | return NULL; | |
260 | } | |
261 | ||
262 | static void *capi_driver_start(struct seq_file *seq, loff_t *pos) | |
263 | { | |
264 | struct capi_driver *drv; | |
265 | read_lock(&capi_drivers_list_lock); | |
266 | drv = capi_driver_get_idx(*pos); | |
267 | return drv; | |
268 | } | |
269 | ||
270 | static void *capi_driver_next(struct seq_file *seq, void *v, loff_t *pos) | |
271 | { | |
272 | struct capi_driver *drv = (struct capi_driver *)v; | |
273 | ++*pos; | |
274 | if (drv->list.next == &capi_drivers) return NULL; | |
275 | return list_entry(drv->list.next, struct capi_driver, list); | |
276 | } | |
277 | ||
278 | static void capi_driver_stop(struct seq_file *seq, void *v) | |
279 | { | |
280 | read_unlock(&capi_drivers_list_lock); | |
281 | } | |
282 | ||
283 | static int capi_driver_show(struct seq_file *seq, void *v) | |
284 | { | |
285 | struct capi_driver *drv = (struct capi_driver *)v; | |
286 | seq_printf(seq, "%-32s %s\n", drv->name, drv->revision); | |
287 | return 0; | |
288 | } | |
289 | ||
408b664a | 290 | static struct seq_operations seq_capi_driver_ops = { |
1da177e4 LT |
291 | .start = capi_driver_start, |
292 | .next = capi_driver_next, | |
293 | .stop = capi_driver_stop, | |
294 | .show = capi_driver_show, | |
295 | }; | |
296 | ||
297 | static int | |
298 | seq_capi_driver_open(struct inode *inode, struct file *file) | |
299 | { | |
300 | int err; | |
301 | err = seq_open(file, &seq_capi_driver_ops); | |
302 | return err; | |
303 | } | |
304 | ||
305 | static struct file_operations proc_driver_ops = { | |
306 | .open = seq_capi_driver_open, | |
307 | .read = seq_read, | |
308 | .llseek = seq_lseek, | |
309 | .release = seq_release, | |
310 | }; | |
311 | ||
312 | // --------------------------------------------------------------------------- | |
313 | ||
314 | void __init | |
315 | kcapi_proc_init(void) | |
316 | { | |
317 | proc_mkdir("capi", NULL); | |
318 | proc_mkdir("capi/controllers", NULL); | |
319 | create_seq_entry("capi/controller", 0, &proc_controller_ops); | |
320 | create_seq_entry("capi/contrstats", 0, &proc_contrstats_ops); | |
321 | create_seq_entry("capi/applications", 0, &proc_applications_ops); | |
322 | create_seq_entry("capi/applstats", 0, &proc_applstats_ops); | |
323 | create_seq_entry("capi/driver", 0, &proc_driver_ops); | |
324 | } | |
325 | ||
326 | void __exit | |
327 | kcapi_proc_exit(void) | |
328 | { | |
329 | remove_proc_entry("capi/driver", NULL); | |
330 | remove_proc_entry("capi/controller", NULL); | |
331 | remove_proc_entry("capi/contrstats", NULL); | |
332 | remove_proc_entry("capi/applications", NULL); | |
333 | remove_proc_entry("capi/applstats", NULL); | |
334 | remove_proc_entry("capi/controllers", NULL); | |
335 | remove_proc_entry("capi", NULL); | |
336 | } |