Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Kernel CAPI 2.0 Module - /proc/capi handling | |
475be4d8 | 3 | * |
1da177e4 LT |
4 | * Copyright 1999 by Carsten Paeth <calle@calle.de> |
5 | * Copyright 2002 by Kai Germaschewski <kai@germaschewski.name> | |
475be4d8 | 6 | * |
1da177e4 LT |
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> | |
5d76fc21 | 17 | #include <linux/export.h> |
1da177e4 | 18 | |
52253031 | 19 | static char *state2str(unsigned short state) |
1da177e4 | 20 | { |
52253031 JK |
21 | switch (state) { |
22 | case CAPI_CTR_DETECTED: return "detected"; | |
23 | case CAPI_CTR_LOADING: return "loading"; | |
24 | case CAPI_CTR_RUNNING: return "running"; | |
1da177e4 LT |
25 | default: return "???"; |
26 | } | |
27 | } | |
28 | ||
29 | // /proc/capi | |
30 | // =========================================================================== | |
31 | ||
475be4d8 | 32 | // /proc/capi/controller: |
1da177e4 LT |
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) | |
0ca3a017 | 39 | __acquires(capi_controller_lock) |
1da177e4 | 40 | { |
0ca3a017 JK |
41 | mutex_lock(&capi_controller_lock); |
42 | ||
1da177e4 | 43 | if (*pos < CAPI_MAXCONTR) |
52253031 | 44 | return &capi_controller[*pos]; |
1da177e4 LT |
45 | |
46 | return NULL; | |
47 | } | |
48 | ||
49 | static void *controller_next(struct seq_file *seq, void *v, loff_t *pos) | |
50 | { | |
51 | ++*pos; | |
52 | if (*pos < CAPI_MAXCONTR) | |
52253031 | 53 | return &capi_controller[*pos]; |
1da177e4 LT |
54 | |
55 | return NULL; | |
56 | } | |
57 | ||
58 | static void controller_stop(struct seq_file *seq, void *v) | |
0ca3a017 | 59 | __releases(capi_controller_lock) |
1da177e4 | 60 | { |
0ca3a017 | 61 | mutex_unlock(&capi_controller_lock); |
1da177e4 LT |
62 | } |
63 | ||
64 | static int controller_show(struct seq_file *seq, void *v) | |
65 | { | |
66 | struct capi_ctr *ctr = *(struct capi_ctr **) v; | |
67 | ||
68 | if (!ctr) | |
69 | return 0; | |
70 | ||
71 | seq_printf(seq, "%d %-10s %-8s %-16s %s\n", | |
72 | ctr->cnr, ctr->driver_name, | |
52253031 | 73 | state2str(ctr->state), |
1da177e4 LT |
74 | ctr->name, |
75 | ctr->procinfo ? ctr->procinfo(ctr) : ""); | |
76 | ||
77 | return 0; | |
78 | } | |
79 | ||
80 | static int contrstats_show(struct seq_file *seq, void *v) | |
81 | { | |
82 | struct capi_ctr *ctr = *(struct capi_ctr **) v; | |
83 | ||
84 | if (!ctr) | |
85 | return 0; | |
86 | ||
87 | seq_printf(seq, "%d %lu %lu %lu %lu\n", | |
475be4d8 | 88 | ctr->cnr, |
1da177e4 LT |
89 | ctr->nrecvctlpkt, |
90 | ctr->nrecvdatapkt, | |
91 | ctr->nsentctlpkt, | |
92 | ctr->nsentdatapkt); | |
93 | ||
94 | return 0; | |
95 | } | |
96 | ||
88e9d34c | 97 | static const struct seq_operations seq_controller_ops = { |
1da177e4 LT |
98 | .start = controller_start, |
99 | .next = controller_next, | |
100 | .stop = controller_stop, | |
101 | .show = controller_show, | |
102 | }; | |
103 | ||
88e9d34c | 104 | static const struct seq_operations seq_contrstats_ops = { |
1da177e4 LT |
105 | .start = controller_start, |
106 | .next = controller_next, | |
107 | .stop = controller_stop, | |
108 | .show = contrstats_show, | |
109 | }; | |
110 | ||
475be4d8 | 111 | // /proc/capi/applications: |
1da177e4 | 112 | // applid l3cnt dblkcnt dblklen #ncci recvqueuelen |
475be4d8 | 113 | // /proc/capi/applstats: |
1da177e4 LT |
114 | // applid nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt |
115 | // --------------------------------------------------------------------------- | |
116 | ||
88c896ef JK |
117 | static void *applications_start(struct seq_file *seq, loff_t *pos) |
118 | __acquires(capi_controller_lock) | |
1da177e4 | 119 | { |
88c896ef JK |
120 | mutex_lock(&capi_controller_lock); |
121 | ||
1da177e4 LT |
122 | if (*pos < CAPI_MAXAPPL) |
123 | return &capi_applications[*pos]; | |
124 | ||
125 | return NULL; | |
126 | } | |
127 | ||
128 | static void * | |
129 | applications_next(struct seq_file *seq, void *v, loff_t *pos) | |
130 | { | |
131 | ++*pos; | |
132 | if (*pos < CAPI_MAXAPPL) | |
133 | return &capi_applications[*pos]; | |
134 | ||
135 | return NULL; | |
136 | } | |
137 | ||
88c896ef JK |
138 | static void applications_stop(struct seq_file *seq, void *v) |
139 | __releases(capi_controller_lock) | |
1da177e4 | 140 | { |
88c896ef | 141 | mutex_unlock(&capi_controller_lock); |
1da177e4 LT |
142 | } |
143 | ||
144 | static int | |
145 | applications_show(struct seq_file *seq, void *v) | |
146 | { | |
147 | struct capi20_appl *ap = *(struct capi20_appl **) v; | |
148 | ||
149 | if (!ap) | |
150 | return 0; | |
151 | ||
152 | seq_printf(seq, "%u %d %d %d\n", | |
153 | ap->applid, | |
154 | ap->rparam.level3cnt, | |
155 | ap->rparam.datablkcnt, | |
156 | ap->rparam.datablklen); | |
157 | ||
158 | return 0; | |
159 | } | |
160 | ||
161 | static int | |
162 | applstats_show(struct seq_file *seq, void *v) | |
163 | { | |
164 | struct capi20_appl *ap = *(struct capi20_appl **) v; | |
165 | ||
166 | if (!ap) | |
167 | return 0; | |
168 | ||
169 | seq_printf(seq, "%u %lu %lu %lu %lu\n", | |
170 | ap->applid, | |
171 | ap->nrecvctlpkt, | |
172 | ap->nrecvdatapkt, | |
173 | ap->nsentctlpkt, | |
174 | ap->nsentdatapkt); | |
175 | ||
176 | return 0; | |
177 | } | |
178 | ||
88e9d34c | 179 | static const struct seq_operations seq_applications_ops = { |
1da177e4 LT |
180 | .start = applications_start, |
181 | .next = applications_next, | |
182 | .stop = applications_stop, | |
183 | .show = applications_show, | |
184 | }; | |
185 | ||
88e9d34c | 186 | static const struct seq_operations seq_applstats_ops = { |
1da177e4 LT |
187 | .start = applications_start, |
188 | .next = applications_next, | |
189 | .stop = applications_stop, | |
190 | .show = applstats_show, | |
191 | }; | |
192 | ||
1da177e4 LT |
193 | // --------------------------------------------------------------------------- |
194 | ||
f59aba2f AB |
195 | /* /proc/capi/drivers is always empty */ |
196 | static ssize_t empty_read(struct file *file, char __user *buf, | |
197 | size_t size, loff_t *off) | |
1da177e4 | 198 | { |
1da177e4 LT |
199 | return 0; |
200 | } | |
201 | ||
97a32539 AD |
202 | static const struct proc_ops empty_proc_ops = { |
203 | .proc_read = empty_read, | |
d4455fac | 204 | .proc_lseek = default_llseek, |
1da177e4 LT |
205 | }; |
206 | ||
1da177e4 LT |
207 | // --------------------------------------------------------------------------- |
208 | ||
475be4d8 | 209 | void __init |
1da177e4 LT |
210 | kcapi_proc_init(void) |
211 | { | |
212 | proc_mkdir("capi", NULL); | |
213 | proc_mkdir("capi/controllers", NULL); | |
fddda2b7 CH |
214 | proc_create_seq("capi/controller", 0, NULL, &seq_controller_ops); |
215 | proc_create_seq("capi/contrstats", 0, NULL, &seq_contrstats_ops); | |
216 | proc_create_seq("capi/applications", 0, NULL, &seq_applications_ops); | |
217 | proc_create_seq("capi/applstats", 0, NULL, &seq_applstats_ops); | |
97a32539 | 218 | proc_create("capi/driver", 0, NULL, &empty_proc_ops); |
1da177e4 LT |
219 | } |
220 | ||
b33bdf80 | 221 | void |
1da177e4 LT |
222 | kcapi_proc_exit(void) |
223 | { | |
224 | remove_proc_entry("capi/driver", NULL); | |
225 | remove_proc_entry("capi/controller", NULL); | |
226 | remove_proc_entry("capi/contrstats", NULL); | |
227 | remove_proc_entry("capi/applications", NULL); | |
228 | remove_proc_entry("capi/applstats", NULL); | |
229 | remove_proc_entry("capi/controllers", NULL); | |
230 | remove_proc_entry("capi", NULL); | |
231 | } |