diff options
Diffstat (limited to 'drivers/pcmcia')
| -rw-r--r-- | drivers/pcmcia/cs.c | 36 | ||||
| -rw-r--r-- | drivers/pcmcia/cs_internal.h | 7 | ||||
| -rw-r--r-- | drivers/pcmcia/ds.c | 103 |
3 files changed, 54 insertions, 92 deletions
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c index 5ea196724f5b..efa30b84a75a 100644 --- a/drivers/pcmcia/cs.c +++ b/drivers/pcmcia/cs.c @@ -252,30 +252,6 @@ struct pcmcia_socket *pcmcia_get_socket_by_nr(unsigned int nr) } EXPORT_SYMBOL(pcmcia_get_socket_by_nr); -/* - * The central event handler. Send_event() sends an event to the - * 16-bit subsystem, which then calls the relevant device drivers. - * Parse_events() interprets the event bits from - * a card status change report. Do_shutdown() handles the high - * priority stuff associated with a card removal. - */ - -/* NOTE: send_event needs to be called with skt->sem held. */ - -static int send_event(struct pcmcia_socket *s, event_t event, int priority) -{ - if ((s->state & SOCKET_CARDBUS) && (event != CS_EVENT_CARD_REMOVAL)) - return 0; - - dev_dbg(&s->dev, "send_event(event %d, pri %d, callback 0x%p)\n", - event, priority, s->callback); - - if (!s->callback) - return 0; - - return s->callback->event(s, event, priority); -} - static int socket_reset(struct pcmcia_socket *skt) { int status, i; @@ -318,7 +294,8 @@ static void socket_shutdown(struct pcmcia_socket *s) dev_dbg(&s->dev, "shutdown\n"); - send_event(s, CS_EVENT_CARD_REMOVAL, CS_EVENT_PRI_HIGH); + if (s->callback) + s->callback->remove(s); mutex_lock(&s->ops_mutex); s->state &= SOCKET_INUSE | SOCKET_PRESENT; @@ -469,7 +446,8 @@ static int socket_insert(struct pcmcia_socket *skt) dev_dbg(&skt->dev, "insert done\n"); mutex_unlock(&skt->ops_mutex); - send_event(skt, CS_EVENT_CARD_INSERTION, CS_EVENT_PRI_LOW); + if (!(skt->state & SOCKET_CARDBUS) && (skt->callback)) + skt->callback->add(skt); } else { mutex_unlock(&skt->ops_mutex); socket_shutdown(skt); @@ -546,8 +524,8 @@ static int socket_late_resume(struct pcmcia_socket *skt) return 0; } #endif - - send_event(skt, CS_EVENT_PM_RESUME, CS_EVENT_PRI_LOW); + if (!(skt->state & SOCKET_CARDBUS) && (skt->callback)) + skt->callback->early_resume(skt); return 0; } @@ -766,7 +744,7 @@ int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c) s->callback = c; if ((s->state & (SOCKET_PRESENT|SOCKET_CARDBUS)) == SOCKET_PRESENT) - send_event(s, CS_EVENT_CARD_INSERTION, CS_EVENT_PRI_LOW); + s->callback->add(s); } else s->callback = NULL; err: diff --git a/drivers/pcmcia/cs_internal.h b/drivers/pcmcia/cs_internal.h index a6cc63db8c8e..45e7fd1aa0bf 100644 --- a/drivers/pcmcia/cs_internal.h +++ b/drivers/pcmcia/cs_internal.h @@ -10,7 +10,7 @@ * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. * * (C) 1999 David A. Hinds - * (C) 2003 - 2008 Dominik Brodowski + * (C) 2003 - 2010 Dominik Brodowski * * * This file contains definitions _only_ needed by the PCMCIA core modules. @@ -106,11 +106,12 @@ void cb_free(struct pcmcia_socket *s); struct pcmcia_callback{ struct module *owner; - int (*event) (struct pcmcia_socket *s, - event_t event, int priority); + int (*add) (struct pcmcia_socket *s); + int (*remove) (struct pcmcia_socket *s); void (*requery) (struct pcmcia_socket *s); int (*validate) (struct pcmcia_socket *s, unsigned int *i); int (*suspend) (struct pcmcia_socket *s); + int (*early_resume) (struct pcmcia_socket *s); int (*resume) (struct pcmcia_socket *s); }; diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index bd58650b2736..78b5b65f9f7e 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -10,7 +10,7 @@ * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. * * (C) 1999 David A. Hinds - * (C) 2003 - 2006 Dominik Brodowski + * (C) 2003 - 2010 Dominik Brodowski */ #include <linux/kernel.h> @@ -1208,76 +1208,57 @@ static int pcmcia_bus_suspend(struct pcmcia_socket *skt) return 0; } +static int pcmcia_bus_remove(struct pcmcia_socket *skt) +{ + atomic_set(&skt->present, 0); + pcmcia_card_remove(skt, NULL); -/*====================================================================== + mutex_lock(&skt->ops_mutex); + destroy_cis_cache(skt); + pcmcia_cleanup_irq(skt); + mutex_unlock(&skt->ops_mutex); - The card status event handler. + return 0; +} -======================================================================*/ +static int pcmcia_bus_add(struct pcmcia_socket *skt) +{ + atomic_set(&skt->present, 1); -/* Normally, the event is passed to individual drivers after - * informing userspace. Only for CS_EVENT_CARD_REMOVAL this - * is inversed to maintain historic compatibility. - */ + mutex_lock(&skt->ops_mutex); + skt->pcmcia_state.has_pfc = 0; + destroy_cis_cache(skt); /* to be on the safe side... */ + mutex_unlock(&skt->ops_mutex); -static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) -{ - struct pcmcia_socket *s = pcmcia_get_socket(skt); + pcmcia_card_add(skt); - if (!s) { - dev_printk(KERN_ERR, &skt->dev, - "PCMCIA obtaining reference to socket " \ - "failed, event 0x%x lost!\n", event); - return -ENODEV; - } + return 0; +} - dev_dbg(&skt->dev, "ds_event(0x%06x, %d, 0x%p)\n", - event, priority, skt); +static int pcmcia_bus_early_resume(struct pcmcia_socket *skt) +{ + if (!verify_cis_cache(skt)) { + pcmcia_put_socket(skt); + return 0; + } - switch (event) { - case CS_EVENT_CARD_REMOVAL: - atomic_set(&skt->present, 0); - pcmcia_card_remove(skt, NULL); - mutex_lock(&s->ops_mutex); - destroy_cis_cache(s); - pcmcia_cleanup_irq(s); - mutex_unlock(&s->ops_mutex); - break; + dev_dbg(&skt->dev, "cis mismatch - different card\n"); - case CS_EVENT_CARD_INSERTION: - atomic_set(&skt->present, 1); - mutex_lock(&s->ops_mutex); - s->pcmcia_state.has_pfc = 0; - destroy_cis_cache(s); /* to be on the safe side... */ - mutex_unlock(&s->ops_mutex); - pcmcia_card_add(skt); - break; - - case CS_EVENT_PM_RESUME: - if (verify_cis_cache(skt) != 0) { - dev_dbg(&skt->dev, "cis mismatch - different card\n"); - /* first, remove the card */ - ds_event(skt, CS_EVENT_CARD_REMOVAL, CS_EVENT_PRI_HIGH); - mutex_lock(&s->ops_mutex); - destroy_cis_cache(skt); - kfree(skt->fake_cis); - skt->fake_cis = NULL; - s->functions = 0; - mutex_unlock(&s->ops_mutex); - /* now, add the new card */ - ds_event(skt, CS_EVENT_CARD_INSERTION, - CS_EVENT_PRI_LOW); - } - break; + /* first, remove the card */ + pcmcia_bus_remove(skt); - default: - break; - } + mutex_lock(&skt->ops_mutex); + destroy_cis_cache(skt); + kfree(skt->fake_cis); + skt->fake_cis = NULL; + skt->functions = 0; + mutex_unlock(&skt->ops_mutex); - pcmcia_put_socket(s); + /* now, add the new card */ + pcmcia_bus_add(skt); + return 0; +} - return 0; -} /* ds_event */ /* * NOTE: This is racy. There's no guarantee the card will still be @@ -1306,10 +1287,12 @@ EXPORT_SYMBOL(pcmcia_dev_present); static struct pcmcia_callback pcmcia_bus_callback = { .owner = THIS_MODULE, - .event = ds_event, + .add = pcmcia_bus_add, + .remove = pcmcia_bus_remove, .requery = pcmcia_requery, .validate = pccard_validate_cis, .suspend = pcmcia_bus_suspend, + .early_resume = pcmcia_bus_early_resume, .resume = pcmcia_bus_resume, }; |
