diff options
Diffstat (limited to 'drivers/isdn/capi/kcapi_proc.c')
| -rw-r--r-- | drivers/isdn/capi/kcapi_proc.c | 66 |
1 files changed, 37 insertions, 29 deletions
diff --git a/drivers/isdn/capi/kcapi_proc.c b/drivers/isdn/capi/kcapi_proc.c index 50ed778f63f..68db3c5a106 100644 --- a/drivers/isdn/capi/kcapi_proc.c +++ b/drivers/isdn/capi/kcapi_proc.c @@ -1,9 +1,9 @@ /* * 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. * @@ -14,14 +14,14 @@ #include <linux/proc_fs.h> #include <linux/seq_file.h> #include <linux/init.h> +#include <linux/export.h> -static char * -cardstate2str(unsigned short cardstate) +static char *state2str(unsigned short state) { - switch (cardstate) { - case CARD_DETECTED: return "detected"; - case CARD_LOADING: return "loading"; - case CARD_RUNNING: return "running"; + switch (state) { + case CAPI_CTR_DETECTED: return "detected"; + case CAPI_CTR_LOADING: return "loading"; + case CAPI_CTR_RUNNING: return "running"; default: return "???"; } } @@ -29,16 +29,19 @@ cardstate2str(unsigned short cardstate) // /proc/capi // =========================================================================== -// /proc/capi/controller: +// /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_cards[*pos]; + return &capi_controller[*pos]; return NULL; } @@ -47,13 +50,15 @@ static void *controller_next(struct seq_file *seq, void *v, loff_t *pos) { ++*pos; if (*pos < CAPI_MAXCONTR) - return &capi_cards[*pos]; + 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) @@ -65,7 +70,7 @@ static int controller_show(struct seq_file *seq, void *v) seq_printf(seq, "%d %-10s %-8s %-16s %s\n", ctr->cnr, ctr->driver_name, - cardstate2str(ctr->cardstate), + state2str(ctr->state), ctr->name, ctr->procinfo ? ctr->procinfo(ctr) : ""); @@ -80,7 +85,7 @@ static int contrstats_show(struct seq_file *seq, void *v) return 0; seq_printf(seq, "%d %lu %lu %lu %lu\n", - ctr->cnr, + ctr->cnr, ctr->nrecvctlpkt, ctr->nrecvdatapkt, ctr->nsentctlpkt, @@ -89,14 +94,14 @@ static int contrstats_show(struct seq_file *seq, void *v) return 0; } -static struct seq_operations seq_controller_ops = { +static const struct seq_operations seq_controller_ops = { .start = controller_start, .next = controller_next, .stop = controller_stop, .show = controller_show, }; -static struct seq_operations seq_contrstats_ops = { +static const struct seq_operations seq_contrstats_ops = { .start = controller_start, .next = controller_next, .stop = controller_stop, @@ -129,15 +134,17 @@ static const struct file_operations proc_contrstats_ops = { .release = seq_release, }; -// /proc/capi/applications: +// /proc/capi/applications: // applid l3cnt dblkcnt dblklen #ncci recvqueuelen -// /proc/capi/applstats: +// /proc/capi/applstats: // applid nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt // --------------------------------------------------------------------------- -static void * -applications_start(struct seq_file *seq, loff_t *pos) +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]; @@ -154,9 +161,10 @@ applications_next(struct seq_file *seq, void *v, loff_t *pos) return NULL; } -static void -applications_stop(struct seq_file *seq, void *v) +static void applications_stop(struct seq_file *seq, void *v) + __releases(capi_controller_lock) { + mutex_unlock(&capi_controller_lock); } static int @@ -194,14 +202,14 @@ applstats_show(struct seq_file *seq, void *v) return 0; } -static struct seq_operations seq_applications_ops = { +static const struct seq_operations seq_applications_ops = { .start = applications_start, .next = applications_next, .stop = applications_stop, .show = applications_show, }; -static struct seq_operations seq_applstats_ops = { +static const struct seq_operations seq_applstats_ops = { .start = applications_start, .next = applications_next, .stop = applications_stop, @@ -239,9 +247,9 @@ static const struct file_operations proc_applstats_ops = { // --------------------------------------------------------------------------- static void *capi_driver_start(struct seq_file *seq, loff_t *pos) - __acquires(&capi_drivers_list_lock) + __acquires(&capi_drivers_lock) { - read_lock(&capi_drivers_list_lock); + mutex_lock(&capi_drivers_lock); return seq_list_start(&capi_drivers, *pos); } @@ -251,9 +259,9 @@ static void *capi_driver_next(struct seq_file *seq, void *v, loff_t *pos) } static void capi_driver_stop(struct seq_file *seq, void *v) - __releases(&capi_drivers_list_lock) + __releases(&capi_drivers_lock) { - read_unlock(&capi_drivers_list_lock); + mutex_unlock(&capi_drivers_lock); } static int capi_driver_show(struct seq_file *seq, void *v) @@ -264,7 +272,7 @@ static int capi_driver_show(struct seq_file *seq, void *v) return 0; } -static struct seq_operations seq_capi_driver_ops = { +static const struct seq_operations seq_capi_driver_ops = { .start = capi_driver_start, .next = capi_driver_next, .stop = capi_driver_stop, @@ -289,7 +297,7 @@ static const struct file_operations proc_driver_ops = { // --------------------------------------------------------------------------- -void __init +void __init kcapi_proc_init(void) { proc_mkdir("capi", NULL); |