337 lines
7.4 KiB
C
337 lines
7.4 KiB
C
/*
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* Kernel CAPI 2.0 Module - /proc/capi handling
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*
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* Copyright 1999 by Carsten Paeth <calle@calle.de>
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* Copyright 2002 by Kai Germaschewski <kai@germaschewski.name>
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*
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*/
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#include "kcapi.h"
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/init.h>
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static char *
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cardstate2str(unsigned short cardstate)
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{
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switch (cardstate) {
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case CARD_DETECTED: return "detected";
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case CARD_LOADING: return "loading";
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case CARD_RUNNING: return "running";
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default: return "???";
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}
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}
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// /proc/capi
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// ===========================================================================
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// /proc/capi/controller:
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// cnr driver cardstate name driverinfo
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// /proc/capi/contrstats:
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// cnr nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt
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// ---------------------------------------------------------------------------
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static void *controller_start(struct seq_file *seq, loff_t *pos)
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{
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if (*pos < CAPI_MAXCONTR)
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return &capi_cards[*pos];
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return NULL;
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}
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static void *controller_next(struct seq_file *seq, void *v, loff_t *pos)
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{
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++*pos;
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if (*pos < CAPI_MAXCONTR)
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return &capi_cards[*pos];
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return NULL;
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}
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static void controller_stop(struct seq_file *seq, void *v)
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{
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}
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static int controller_show(struct seq_file *seq, void *v)
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{
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struct capi_ctr *ctr = *(struct capi_ctr **) v;
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if (!ctr)
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return 0;
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seq_printf(seq, "%d %-10s %-8s %-16s %s\n",
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ctr->cnr, ctr->driver_name,
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cardstate2str(ctr->cardstate),
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ctr->name,
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ctr->procinfo ? ctr->procinfo(ctr) : "");
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return 0;
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}
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static int contrstats_show(struct seq_file *seq, void *v)
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{
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struct capi_ctr *ctr = *(struct capi_ctr **) v;
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if (!ctr)
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return 0;
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seq_printf(seq, "%d %lu %lu %lu %lu\n",
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ctr->cnr,
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ctr->nrecvctlpkt,
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ctr->nrecvdatapkt,
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ctr->nsentctlpkt,
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ctr->nsentdatapkt);
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return 0;
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}
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static struct seq_operations seq_controller_ops = {
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.start = controller_start,
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.next = controller_next,
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.stop = controller_stop,
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.show = controller_show,
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};
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static struct seq_operations seq_contrstats_ops = {
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.start = controller_start,
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.next = controller_next,
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.stop = controller_stop,
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.show = contrstats_show,
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};
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static int seq_controller_open(struct inode *inode, struct file *file)
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{
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return seq_open(file, &seq_controller_ops);
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}
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static int seq_contrstats_open(struct inode *inode, struct file *file)
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{
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return seq_open(file, &seq_contrstats_ops);
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}
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static struct file_operations proc_controller_ops = {
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.open = seq_controller_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = seq_release,
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};
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static struct file_operations proc_contrstats_ops = {
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.open = seq_contrstats_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = seq_release,
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};
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// /proc/capi/applications:
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// applid l3cnt dblkcnt dblklen #ncci recvqueuelen
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// /proc/capi/applstats:
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// applid nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt
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// ---------------------------------------------------------------------------
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static void *
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applications_start(struct seq_file *seq, loff_t *pos)
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{
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if (*pos < CAPI_MAXAPPL)
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return &capi_applications[*pos];
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return NULL;
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}
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static void *
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applications_next(struct seq_file *seq, void *v, loff_t *pos)
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{
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++*pos;
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if (*pos < CAPI_MAXAPPL)
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return &capi_applications[*pos];
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return NULL;
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}
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static void
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applications_stop(struct seq_file *seq, void *v)
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{
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}
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static int
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applications_show(struct seq_file *seq, void *v)
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{
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struct capi20_appl *ap = *(struct capi20_appl **) v;
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if (!ap)
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return 0;
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seq_printf(seq, "%u %d %d %d\n",
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ap->applid,
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ap->rparam.level3cnt,
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ap->rparam.datablkcnt,
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ap->rparam.datablklen);
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return 0;
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}
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static int
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applstats_show(struct seq_file *seq, void *v)
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{
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struct capi20_appl *ap = *(struct capi20_appl **) v;
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if (!ap)
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return 0;
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seq_printf(seq, "%u %lu %lu %lu %lu\n",
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ap->applid,
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ap->nrecvctlpkt,
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ap->nrecvdatapkt,
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ap->nsentctlpkt,
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ap->nsentdatapkt);
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return 0;
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}
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static struct seq_operations seq_applications_ops = {
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.start = applications_start,
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.next = applications_next,
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.stop = applications_stop,
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.show = applications_show,
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};
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static struct seq_operations seq_applstats_ops = {
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.start = applications_start,
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.next = applications_next,
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.stop = applications_stop,
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.show = applstats_show,
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};
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static int
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seq_applications_open(struct inode *inode, struct file *file)
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{
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return seq_open(file, &seq_applications_ops);
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}
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static int
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seq_applstats_open(struct inode *inode, struct file *file)
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{
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return seq_open(file, &seq_applstats_ops);
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}
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static struct file_operations proc_applications_ops = {
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.open = seq_applications_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = seq_release,
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};
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static struct file_operations proc_applstats_ops = {
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.open = seq_applstats_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = seq_release,
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};
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static void
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create_seq_entry(char *name, mode_t mode, struct file_operations *f)
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{
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struct proc_dir_entry *entry;
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entry = create_proc_entry(name, mode, NULL);
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if (entry)
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entry->proc_fops = f;
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}
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// ---------------------------------------------------------------------------
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static __inline__ struct capi_driver *capi_driver_get_idx(loff_t pos)
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{
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struct capi_driver *drv = NULL;
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struct list_head *l;
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loff_t i;
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i = 0;
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list_for_each(l, &capi_drivers) {
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drv = list_entry(l, struct capi_driver, list);
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if (i++ == pos)
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return drv;
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}
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return NULL;
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}
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static void *capi_driver_start(struct seq_file *seq, loff_t *pos)
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{
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struct capi_driver *drv;
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read_lock(&capi_drivers_list_lock);
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drv = capi_driver_get_idx(*pos);
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return drv;
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}
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static void *capi_driver_next(struct seq_file *seq, void *v, loff_t *pos)
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{
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struct capi_driver *drv = (struct capi_driver *)v;
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++*pos;
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if (drv->list.next == &capi_drivers) return NULL;
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return list_entry(drv->list.next, struct capi_driver, list);
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}
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static void capi_driver_stop(struct seq_file *seq, void *v)
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{
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read_unlock(&capi_drivers_list_lock);
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}
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static int capi_driver_show(struct seq_file *seq, void *v)
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{
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struct capi_driver *drv = (struct capi_driver *)v;
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seq_printf(seq, "%-32s %s\n", drv->name, drv->revision);
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return 0;
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}
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static struct seq_operations seq_capi_driver_ops = {
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.start = capi_driver_start,
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.next = capi_driver_next,
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.stop = capi_driver_stop,
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.show = capi_driver_show,
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};
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static int
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seq_capi_driver_open(struct inode *inode, struct file *file)
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{
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int err;
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err = seq_open(file, &seq_capi_driver_ops);
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return err;
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}
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static struct file_operations proc_driver_ops = {
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.open = seq_capi_driver_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = seq_release,
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};
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// ---------------------------------------------------------------------------
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void __init
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kcapi_proc_init(void)
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{
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proc_mkdir("capi", NULL);
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proc_mkdir("capi/controllers", NULL);
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create_seq_entry("capi/controller", 0, &proc_controller_ops);
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create_seq_entry("capi/contrstats", 0, &proc_contrstats_ops);
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create_seq_entry("capi/applications", 0, &proc_applications_ops);
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create_seq_entry("capi/applstats", 0, &proc_applstats_ops);
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create_seq_entry("capi/driver", 0, &proc_driver_ops);
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}
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void __exit
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kcapi_proc_exit(void)
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{
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remove_proc_entry("capi/driver", NULL);
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remove_proc_entry("capi/controller", NULL);
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remove_proc_entry("capi/contrstats", NULL);
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remove_proc_entry("capi/applications", NULL);
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remove_proc_entry("capi/applstats", NULL);
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remove_proc_entry("capi/controllers", NULL);
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remove_proc_entry("capi", NULL);
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}
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