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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 | ||
52253031 | 18 | static char *state2str(unsigned short state) |
1da177e4 | 19 | { |
52253031 JK |
20 | switch (state) { |
21 | case CAPI_CTR_DETECTED: return "detected"; | |
22 | case CAPI_CTR_LOADING: return "loading"; | |
23 | case CAPI_CTR_RUNNING: return "running"; | |
1da177e4 LT |
24 | default: return "???"; |
25 | } | |
26 | } | |
27 | ||
28 | // /proc/capi | |
29 | // =========================================================================== | |
30 | ||
31 | // /proc/capi/controller: | |
32 | // cnr driver cardstate name driverinfo | |
33 | // /proc/capi/contrstats: | |
34 | // cnr nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt | |
35 | // --------------------------------------------------------------------------- | |
36 | ||
37 | static void *controller_start(struct seq_file *seq, loff_t *pos) | |
0ca3a017 | 38 | __acquires(capi_controller_lock) |
1da177e4 | 39 | { |
0ca3a017 JK |
40 | mutex_lock(&capi_controller_lock); |
41 | ||
1da177e4 | 42 | if (*pos < CAPI_MAXCONTR) |
52253031 | 43 | return &capi_controller[*pos]; |
1da177e4 LT |
44 | |
45 | return NULL; | |
46 | } | |
47 | ||
48 | static void *controller_next(struct seq_file *seq, void *v, loff_t *pos) | |
49 | { | |
50 | ++*pos; | |
51 | if (*pos < CAPI_MAXCONTR) | |
52253031 | 52 | return &capi_controller[*pos]; |
1da177e4 LT |
53 | |
54 | return NULL; | |
55 | } | |
56 | ||
57 | static void controller_stop(struct seq_file *seq, void *v) | |
0ca3a017 | 58 | __releases(capi_controller_lock) |
1da177e4 | 59 | { |
0ca3a017 | 60 | mutex_unlock(&capi_controller_lock); |
1da177e4 LT |
61 | } |
62 | ||
63 | static int controller_show(struct seq_file *seq, void *v) | |
64 | { | |
65 | struct capi_ctr *ctr = *(struct capi_ctr **) v; | |
66 | ||
67 | if (!ctr) | |
68 | return 0; | |
69 | ||
70 | seq_printf(seq, "%d %-10s %-8s %-16s %s\n", | |
71 | ctr->cnr, ctr->driver_name, | |
52253031 | 72 | state2str(ctr->state), |
1da177e4 LT |
73 | ctr->name, |
74 | ctr->procinfo ? ctr->procinfo(ctr) : ""); | |
75 | ||
76 | return 0; | |
77 | } | |
78 | ||
79 | static int contrstats_show(struct seq_file *seq, void *v) | |
80 | { | |
81 | struct capi_ctr *ctr = *(struct capi_ctr **) v; | |
82 | ||
83 | if (!ctr) | |
84 | return 0; | |
85 | ||
86 | seq_printf(seq, "%d %lu %lu %lu %lu\n", | |
87 | ctr->cnr, | |
88 | ctr->nrecvctlpkt, | |
89 | ctr->nrecvdatapkt, | |
90 | ctr->nsentctlpkt, | |
91 | ctr->nsentdatapkt); | |
92 | ||
93 | return 0; | |
94 | } | |
95 | ||
88e9d34c | 96 | static const struct seq_operations seq_controller_ops = { |
1da177e4 LT |
97 | .start = controller_start, |
98 | .next = controller_next, | |
99 | .stop = controller_stop, | |
100 | .show = controller_show, | |
101 | }; | |
102 | ||
88e9d34c | 103 | static const struct seq_operations seq_contrstats_ops = { |
1da177e4 LT |
104 | .start = controller_start, |
105 | .next = controller_next, | |
106 | .stop = controller_stop, | |
107 | .show = contrstats_show, | |
108 | }; | |
109 | ||
110 | static int seq_controller_open(struct inode *inode, struct file *file) | |
111 | { | |
112 | return seq_open(file, &seq_controller_ops); | |
113 | } | |
114 | ||
115 | static int seq_contrstats_open(struct inode *inode, struct file *file) | |
116 | { | |
117 | return seq_open(file, &seq_contrstats_ops); | |
118 | } | |
119 | ||
2b8693c0 | 120 | static const struct file_operations proc_controller_ops = { |
ac41cfd1 | 121 | .owner = THIS_MODULE, |
1da177e4 LT |
122 | .open = seq_controller_open, |
123 | .read = seq_read, | |
124 | .llseek = seq_lseek, | |
125 | .release = seq_release, | |
126 | }; | |
127 | ||
2b8693c0 | 128 | static const struct file_operations proc_contrstats_ops = { |
ac41cfd1 | 129 | .owner = THIS_MODULE, |
1da177e4 LT |
130 | .open = seq_contrstats_open, |
131 | .read = seq_read, | |
132 | .llseek = seq_lseek, | |
133 | .release = seq_release, | |
134 | }; | |
135 | ||
136 | // /proc/capi/applications: | |
137 | // applid l3cnt dblkcnt dblklen #ncci recvqueuelen | |
138 | // /proc/capi/applstats: | |
139 | // applid nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt | |
140 | // --------------------------------------------------------------------------- | |
141 | ||
88c896ef JK |
142 | static void *applications_start(struct seq_file *seq, loff_t *pos) |
143 | __acquires(capi_controller_lock) | |
1da177e4 | 144 | { |
88c896ef JK |
145 | mutex_lock(&capi_controller_lock); |
146 | ||
1da177e4 LT |
147 | if (*pos < CAPI_MAXAPPL) |
148 | return &capi_applications[*pos]; | |
149 | ||
150 | return NULL; | |
151 | } | |
152 | ||
153 | static void * | |
154 | applications_next(struct seq_file *seq, void *v, loff_t *pos) | |
155 | { | |
156 | ++*pos; | |
157 | if (*pos < CAPI_MAXAPPL) | |
158 | return &capi_applications[*pos]; | |
159 | ||
160 | return NULL; | |
161 | } | |
162 | ||
88c896ef JK |
163 | static void applications_stop(struct seq_file *seq, void *v) |
164 | __releases(capi_controller_lock) | |
1da177e4 | 165 | { |
88c896ef | 166 | mutex_unlock(&capi_controller_lock); |
1da177e4 LT |
167 | } |
168 | ||
169 | static int | |
170 | applications_show(struct seq_file *seq, void *v) | |
171 | { | |
172 | struct capi20_appl *ap = *(struct capi20_appl **) v; | |
173 | ||
174 | if (!ap) | |
175 | return 0; | |
176 | ||
177 | seq_printf(seq, "%u %d %d %d\n", | |
178 | ap->applid, | |
179 | ap->rparam.level3cnt, | |
180 | ap->rparam.datablkcnt, | |
181 | ap->rparam.datablklen); | |
182 | ||
183 | return 0; | |
184 | } | |
185 | ||
186 | static int | |
187 | applstats_show(struct seq_file *seq, void *v) | |
188 | { | |
189 | struct capi20_appl *ap = *(struct capi20_appl **) v; | |
190 | ||
191 | if (!ap) | |
192 | return 0; | |
193 | ||
194 | seq_printf(seq, "%u %lu %lu %lu %lu\n", | |
195 | ap->applid, | |
196 | ap->nrecvctlpkt, | |
197 | ap->nrecvdatapkt, | |
198 | ap->nsentctlpkt, | |
199 | ap->nsentdatapkt); | |
200 | ||
201 | return 0; | |
202 | } | |
203 | ||
88e9d34c | 204 | static const struct seq_operations seq_applications_ops = { |
1da177e4 LT |
205 | .start = applications_start, |
206 | .next = applications_next, | |
207 | .stop = applications_stop, | |
208 | .show = applications_show, | |
209 | }; | |
210 | ||
88e9d34c | 211 | static const struct seq_operations seq_applstats_ops = { |
1da177e4 LT |
212 | .start = applications_start, |
213 | .next = applications_next, | |
214 | .stop = applications_stop, | |
215 | .show = applstats_show, | |
216 | }; | |
217 | ||
218 | static int | |
219 | seq_applications_open(struct inode *inode, struct file *file) | |
220 | { | |
221 | return seq_open(file, &seq_applications_ops); | |
222 | } | |
223 | ||
224 | static int | |
225 | seq_applstats_open(struct inode *inode, struct file *file) | |
226 | { | |
227 | return seq_open(file, &seq_applstats_ops); | |
228 | } | |
229 | ||
2b8693c0 | 230 | static const struct file_operations proc_applications_ops = { |
ac41cfd1 | 231 | .owner = THIS_MODULE, |
1da177e4 LT |
232 | .open = seq_applications_open, |
233 | .read = seq_read, | |
234 | .llseek = seq_lseek, | |
235 | .release = seq_release, | |
236 | }; | |
237 | ||
2b8693c0 | 238 | static const struct file_operations proc_applstats_ops = { |
ac41cfd1 | 239 | .owner = THIS_MODULE, |
1da177e4 LT |
240 | .open = seq_applstats_open, |
241 | .read = seq_read, | |
242 | .llseek = seq_lseek, | |
243 | .release = seq_release, | |
244 | }; | |
245 | ||
1da177e4 LT |
246 | // --------------------------------------------------------------------------- |
247 | ||
1da177e4 | 248 | static void *capi_driver_start(struct seq_file *seq, loff_t *pos) |
9717fb8b | 249 | __acquires(&capi_drivers_lock) |
1da177e4 | 250 | { |
9717fb8b | 251 | mutex_lock(&capi_drivers_lock); |
2b7c3029 | 252 | return seq_list_start(&capi_drivers, *pos); |
1da177e4 LT |
253 | } |
254 | ||
255 | static void *capi_driver_next(struct seq_file *seq, void *v, loff_t *pos) | |
256 | { | |
2b7c3029 | 257 | return seq_list_next(v, &capi_drivers, pos); |
1da177e4 LT |
258 | } |
259 | ||
260 | static void capi_driver_stop(struct seq_file *seq, void *v) | |
9717fb8b | 261 | __releases(&capi_drivers_lock) |
1da177e4 | 262 | { |
9717fb8b | 263 | mutex_unlock(&capi_drivers_lock); |
1da177e4 LT |
264 | } |
265 | ||
266 | static int capi_driver_show(struct seq_file *seq, void *v) | |
267 | { | |
2b7c3029 PE |
268 | struct capi_driver *drv = list_entry(v, struct capi_driver, list); |
269 | ||
1da177e4 LT |
270 | seq_printf(seq, "%-32s %s\n", drv->name, drv->revision); |
271 | return 0; | |
272 | } | |
273 | ||
88e9d34c | 274 | static const struct seq_operations seq_capi_driver_ops = { |
1da177e4 LT |
275 | .start = capi_driver_start, |
276 | .next = capi_driver_next, | |
277 | .stop = capi_driver_stop, | |
278 | .show = capi_driver_show, | |
279 | }; | |
280 | ||
281 | static int | |
282 | seq_capi_driver_open(struct inode *inode, struct file *file) | |
283 | { | |
284 | int err; | |
285 | err = seq_open(file, &seq_capi_driver_ops); | |
286 | return err; | |
287 | } | |
288 | ||
2b8693c0 | 289 | static const struct file_operations proc_driver_ops = { |
ac41cfd1 | 290 | .owner = THIS_MODULE, |
1da177e4 LT |
291 | .open = seq_capi_driver_open, |
292 | .read = seq_read, | |
293 | .llseek = seq_lseek, | |
294 | .release = seq_release, | |
295 | }; | |
296 | ||
297 | // --------------------------------------------------------------------------- | |
298 | ||
299 | void __init | |
300 | kcapi_proc_init(void) | |
301 | { | |
302 | proc_mkdir("capi", NULL); | |
303 | proc_mkdir("capi/controllers", NULL); | |
ac41cfd1 DL |
304 | proc_create("capi/controller", 0, NULL, &proc_controller_ops); |
305 | proc_create("capi/contrstats", 0, NULL, &proc_contrstats_ops); | |
306 | proc_create("capi/applications", 0, NULL, &proc_applications_ops); | |
307 | proc_create("capi/applstats", 0, NULL, &proc_applstats_ops); | |
308 | proc_create("capi/driver", 0, NULL, &proc_driver_ops); | |
1da177e4 LT |
309 | } |
310 | ||
311 | void __exit | |
312 | kcapi_proc_exit(void) | |
313 | { | |
314 | remove_proc_entry("capi/driver", NULL); | |
315 | remove_proc_entry("capi/controller", NULL); | |
316 | remove_proc_entry("capi/contrstats", NULL); | |
317 | remove_proc_entry("capi/applications", NULL); | |
318 | remove_proc_entry("capi/applstats", NULL); | |
319 | remove_proc_entry("capi/controllers", NULL); | |
320 | remove_proc_entry("capi", NULL); | |
321 | } |