diff options
Diffstat (limited to 'drivers/isdn/capi/kcapi_proc.c')
| -rw-r--r-- | drivers/isdn/capi/kcapi_proc.c | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/drivers/isdn/capi/kcapi_proc.c b/drivers/isdn/capi/kcapi_proc.c new file mode 100644 index 0000000000..77e9512068 --- /dev/null +++ b/drivers/isdn/capi/kcapi_proc.c @@ -0,0 +1,231 @@ +/* + * Kernel CAPI 2.0 Module - /proc/capi handling + * + * Copyright 1999 by Carsten Paeth <calle@calle.de> + * Copyright 2002 by Kai Germaschewski <kai@germaschewski.name> + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + * + */ + + +#include "kcapi.h" +#include <linux/proc_fs.h> +#include <linux/seq_file.h> +#include <linux/init.h> +#include <linux/export.h> + +static char *state2str(unsigned short state) +{ + switch (state) { + case CAPI_CTR_DETECTED: return "detected"; + case CAPI_CTR_LOADING: return "loading"; + case CAPI_CTR_RUNNING: return "running"; + default: return "???"; + } +} + +// /proc/capi +// =========================================================================== + +// /proc/capi/controller: +// cnr driver cardstate name driverinfo +// /proc/capi/contrstats: +// cnr nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt +// --------------------------------------------------------------------------- + +static void *controller_start(struct seq_file *seq, loff_t *pos) + __acquires(capi_controller_lock) +{ + mutex_lock(&capi_controller_lock); + + if (*pos < CAPI_MAXCONTR) + return &capi_controller[*pos]; + + return NULL; +} + +static void *controller_next(struct seq_file *seq, void *v, loff_t *pos) +{ + ++*pos; + if (*pos < CAPI_MAXCONTR) + return &capi_controller[*pos]; + + return NULL; +} + +static void controller_stop(struct seq_file *seq, void *v) + __releases(capi_controller_lock) +{ + mutex_unlock(&capi_controller_lock); +} + +static int controller_show(struct seq_file *seq, void *v) +{ + struct capi_ctr *ctr = *(struct capi_ctr **) v; + + if (!ctr) + return 0; + + seq_printf(seq, "%d %-10s %-8s %-16s %s\n", + ctr->cnr, ctr->driver_name, + state2str(ctr->state), + ctr->name, + ctr->procinfo ? ctr->procinfo(ctr) : ""); + + return 0; +} + +static int contrstats_show(struct seq_file *seq, void *v) +{ + struct capi_ctr *ctr = *(struct capi_ctr **) v; + + if (!ctr) + return 0; + + seq_printf(seq, "%d %lu %lu %lu %lu\n", + ctr->cnr, + ctr->nrecvctlpkt, + ctr->nrecvdatapkt, + ctr->nsentctlpkt, + ctr->nsentdatapkt); + + return 0; +} + +static const struct seq_operations seq_controller_ops = { + .start = controller_start, + .next = controller_next, + .stop = controller_stop, + .show = controller_show, +}; + +static const struct seq_operations seq_contrstats_ops = { + .start = controller_start, + .next = controller_next, + .stop = controller_stop, + .show = contrstats_show, +}; + +// /proc/capi/applications: +// applid l3cnt dblkcnt dblklen #ncci recvqueuelen +// /proc/capi/applstats: +// applid nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt +// --------------------------------------------------------------------------- + +static void *applications_start(struct seq_file *seq, loff_t *pos) + __acquires(capi_controller_lock) +{ + mutex_lock(&capi_controller_lock); + + if (*pos < CAPI_MAXAPPL) + return &capi_applications[*pos]; + + return NULL; +} + +static void * +applications_next(struct seq_file *seq, void *v, loff_t *pos) +{ + ++*pos; + if (*pos < CAPI_MAXAPPL) + return &capi_applications[*pos]; + + return NULL; +} + +static void applications_stop(struct seq_file *seq, void *v) + __releases(capi_controller_lock) +{ + mutex_unlock(&capi_controller_lock); +} + +static int +applications_show(struct seq_file *seq, void *v) +{ + struct capi20_appl *ap = *(struct capi20_appl **) v; + + if (!ap) + return 0; + + seq_printf(seq, "%u %d %d %d\n", + ap->applid, + ap->rparam.level3cnt, + ap->rparam.datablkcnt, + ap->rparam.datablklen); + + return 0; +} + +static int +applstats_show(struct seq_file *seq, void *v) +{ + struct capi20_appl *ap = *(struct capi20_appl **) v; + + if (!ap) + return 0; + + seq_printf(seq, "%u %lu %lu %lu %lu\n", + ap->applid, + ap->nrecvctlpkt, + ap->nrecvdatapkt, + ap->nsentctlpkt, + ap->nsentdatapkt); + + return 0; +} + +static const struct seq_operations seq_applications_ops = { + .start = applications_start, + .next = applications_next, + .stop = applications_stop, + .show = applications_show, +}; + +static const struct seq_operations seq_applstats_ops = { + .start = applications_start, + .next = applications_next, + .stop = applications_stop, + .show = applstats_show, +}; + +// --------------------------------------------------------------------------- + +/* /proc/capi/drivers is always empty */ +static ssize_t empty_read(struct file *file, char __user *buf, + size_t size, loff_t *off) +{ + return 0; +} + +static const struct proc_ops empty_proc_ops = { + .proc_read = empty_read, + .proc_lseek = default_llseek, +}; + +// --------------------------------------------------------------------------- + +void __init +kcapi_proc_init(void) +{ + proc_mkdir("capi", NULL); + proc_mkdir("capi/controllers", NULL); + proc_create_seq("capi/controller", 0, NULL, &seq_controller_ops); + proc_create_seq("capi/contrstats", 0, NULL, &seq_contrstats_ops); + proc_create_seq("capi/applications", 0, NULL, &seq_applications_ops); + proc_create_seq("capi/applstats", 0, NULL, &seq_applstats_ops); + proc_create("capi/driver", 0, NULL, &empty_proc_ops); +} + +void +kcapi_proc_exit(void) +{ + remove_proc_entry("capi/driver", NULL); + remove_proc_entry("capi/controller", NULL); + remove_proc_entry("capi/contrstats", NULL); + remove_proc_entry("capi/applications", NULL); + remove_proc_entry("capi/applstats", NULL); + remove_proc_entry("capi/controllers", NULL); + remove_proc_entry("capi", NULL); +} |