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path: root/drivers/pcmcia/cs.c
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Diffstat (limited to 'drivers/pcmcia/cs.c')
-rw-r--r--drivers/pcmcia/cs.c209
1 files changed, 66 insertions, 143 deletions
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index 6a35a4a9f93..0ff4d6ec8b7 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -43,36 +43,11 @@
#include <pcmcia/ds.h>
#include "cs_internal.h"
-#ifdef CONFIG_PCI
-#define PCI_OPT " [pci]"
-#else
-#define PCI_OPT ""
-#endif
-#ifdef CONFIG_CARDBUS
-#define CB_OPT " [cardbus]"
-#else
-#define CB_OPT ""
-#endif
-#ifdef CONFIG_PM
-#define PM_OPT " [pm]"
-#else
-#define PM_OPT ""
-#endif
-#if !defined(CONFIG_CARDBUS) && !defined(CONFIG_PCI) && !defined(CONFIG_PM)
-#define OPTIONS " none"
-#else
-#define OPTIONS PCI_OPT CB_OPT PM_OPT
-#endif
-
-static const char *release = "Linux Kernel Card Services";
-static const char *options = "options: " OPTIONS;
-
-/*====================================================================*/
/* Module parameters */
MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
-MODULE_DESCRIPTION("Linux Kernel Card Services\noptions:" OPTIONS);
+MODULE_DESCRIPTION("Linux Kernel Card Services");
MODULE_LICENSE("GPL");
#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0444)
@@ -100,29 +75,26 @@ int cs_debug_level(int level)
}
#endif
-/*====================================================================*/
socket_state_t dead_socket = {
.csc_mask = SS_DETECT,
};
+EXPORT_SYMBOL(dead_socket);
/* List of all sockets, protected by a rwsem */
LIST_HEAD(pcmcia_socket_list);
-DECLARE_RWSEM(pcmcia_socket_list_rwsem);
EXPORT_SYMBOL(pcmcia_socket_list);
-EXPORT_SYMBOL(pcmcia_socket_list_rwsem);
+DECLARE_RWSEM(pcmcia_socket_list_rwsem);
+EXPORT_SYMBOL(pcmcia_socket_list_rwsem);
-/*====================================================================
-
- Low-level PC Card interface drivers need to register with Card
- Services using these calls.
-
-======================================================================*/
/**
- * socket drivers are expected to use the following callbacks in their
+ * Low-level PCMCIA socket drivers need to register with the PCCard
+ * core using pcmcia_register_socket.
+ *
+ * socket drivers are expected to use the following callbacks in their
* .drv struct:
* - pcmcia_socket_dev_suspend
* - pcmcia_socket_dev_resume
@@ -222,8 +194,8 @@ int pcmcia_register_socket(struct pcmcia_socket *socket)
}
/* try to obtain a socket number [yes, it gets ugly if we
- * register more than 2^sizeof(unsigned int) pcmcia
- * sockets... but the socket number is deprecated
+ * register more than 2^sizeof(unsigned int) pcmcia
+ * sockets... but the socket number is deprecated
* anyways, so I don't care] */
down_write(&pcmcia_socket_list_rwsem);
if (list_empty(&pcmcia_socket_list))
@@ -332,54 +304,49 @@ struct pcmcia_socket * pcmcia_get_socket_by_nr(unsigned int nr)
EXPORT_SYMBOL(pcmcia_get_socket_by_nr);
-/*======================================================================
-
- socket_setup() and shutdown_socket() are called by the main event
- handler when card insertion and removal events are received.
- socket_setup() turns on socket power and resets the socket, in two stages.
- shutdown_socket() unconfigures a socket and turns off socket power.
-
-======================================================================*/
-
+/**
+ * socket_setup() and shutdown_socket() are called by the main event
+ * handler when card insertion and removal events are received.
+ * socket_setup() turns on socket power and resets the socket, in two stages.
+ * shutdown_socket() unconfigures a socket and turns off socket power.
+ */
static void shutdown_socket(struct pcmcia_socket *s)
{
- cs_dbg(s, 1, "shutdown_socket\n");
-
- /* Blank out the socket state */
- s->socket = dead_socket;
- s->ops->init(s);
- s->ops->set_socket(s, &s->socket);
- s->irq.AssignedIRQ = s->irq.Config = 0;
- s->lock_count = 0;
- destroy_cis_cache(s);
+ cs_dbg(s, 1, "shutdown_socket\n");
+
+ /* Blank out the socket state */
+ s->socket = dead_socket;
+ s->ops->init(s);
+ s->ops->set_socket(s, &s->socket);
+ s->irq.AssignedIRQ = s->irq.Config = 0;
+ s->lock_count = 0;
+ destroy_cis_cache(s);
#ifdef CONFIG_CARDBUS
- cb_free(s);
+ cb_free(s);
#endif
- s->functions = 0;
- if (s->config) {
- kfree(s->config);
- s->config = NULL;
- }
-
- {
- int status;
- s->ops->get_status(s, &status);
- if (status & SS_POWERON) {
- printk(KERN_ERR "PCMCIA: socket %p: *** DANGER *** unable to remove socket power\n", s);
+ s->functions = 0;
+ if (s->config) {
+ kfree(s->config);
+ s->config = NULL;
}
- }
-} /* shutdown_socket */
-/*======================================================================
+ {
+ int status;
+ s->ops->get_status(s, &status);
+ if (status & SS_POWERON) {
+ printk(KERN_ERR "PCMCIA: socket %p: *** DANGER *** unable to remove socket power\n", s);
+ }
+ }
+} /* shutdown_socket */
- 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.
-
-======================================================================*/
+/**
+ * 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. */
@@ -738,27 +705,7 @@ void pcmcia_parse_events(struct pcmcia_socket *s, u_int events)
wake_up(&s->thread_wait);
}
} /* pcmcia_parse_events */
-
-
-/*=====================================================================
-
- Return the PCI device associated with a card..
-
-======================================================================*/
-
-#ifdef CONFIG_CARDBUS
-
-struct pci_bus *pcmcia_lookup_bus(struct pcmcia_socket *s)
-{
- if (!s || !(s->state & SOCKET_CARDBUS))
- return NULL;
-
- return s->cb_dev->subordinate;
-}
-
-EXPORT_SYMBOL(pcmcia_lookup_bus);
-
-#endif
+EXPORT_SYMBOL(pcmcia_parse_events);
/* register pcmcia_callback */
@@ -790,18 +737,15 @@ int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c)
EXPORT_SYMBOL(pccard_register_pcmcia);
-/*======================================================================
-
- I'm not sure which "reset" function this is supposed to use,
- but for now, it uses the low-level interface's reset, not the
- CIS register.
-
-======================================================================*/
+/* I'm not sure which "reset" function this is supposed to use,
+ * but for now, it uses the low-level interface's reset, not the
+ * CIS register.
+ */
int pccard_reset_card(struct pcmcia_socket *skt)
{
int ret;
-
+
cs_dbg(skt, 1, "resetting socket\n");
down(&skt->skt_sem);
@@ -834,17 +778,14 @@ int pccard_reset_card(struct pcmcia_socket *skt)
} /* reset_card */
EXPORT_SYMBOL(pccard_reset_card);
-/*======================================================================
-
- These shut down or wake up a socket. They are sort of user
- initiated versions of the APM suspend and resume actions.
-
-======================================================================*/
+/* These shut down or wake up a socket. They are sort of user
+ * initiated versions of the APM suspend and resume actions.
+ */
int pcmcia_suspend_card(struct pcmcia_socket *skt)
{
int ret;
-
+
cs_dbg(skt, 1, "suspending socket\n");
down(&skt->skt_sem);
@@ -863,6 +804,8 @@ int pcmcia_suspend_card(struct pcmcia_socket *skt)
return ret;
} /* suspend_card */
+EXPORT_SYMBOL(pcmcia_suspend_card);
+
int pcmcia_resume_card(struct pcmcia_socket *skt)
{
@@ -886,13 +829,10 @@ int pcmcia_resume_card(struct pcmcia_socket *skt)
return ret;
} /* resume_card */
+EXPORT_SYMBOL(pcmcia_resume_card);
-/*======================================================================
-
- These handle user requests to eject or insert a card.
-
-======================================================================*/
+/* These handle user requests to eject or insert a card. */
int pcmcia_eject_card(struct pcmcia_socket *skt)
{
int ret;
@@ -919,6 +859,8 @@ int pcmcia_eject_card(struct pcmcia_socket *skt)
return ret;
} /* eject_card */
+EXPORT_SYMBOL(pcmcia_eject_card);
+
int pcmcia_insert_card(struct pcmcia_socket *skt)
{
@@ -942,6 +884,8 @@ int pcmcia_insert_card(struct pcmcia_socket *skt)
return ret;
} /* insert_card */
+EXPORT_SYMBOL(pcmcia_insert_card);
+
static int pcmcia_socket_hotplug(struct class_device *dev, char **envp,
int num_envp, char *buffer, int buffer_size)
@@ -958,20 +902,6 @@ static int pcmcia_socket_hotplug(struct class_device *dev, char **envp,
return 0;
}
-/*======================================================================
-
- OS-specific module glue goes here
-
-======================================================================*/
-/* in alpha order */
-EXPORT_SYMBOL(pcmcia_eject_card);
-EXPORT_SYMBOL(pcmcia_insert_card);
-EXPORT_SYMBOL(pcmcia_replace_cis);
-EXPORT_SYMBOL(pcmcia_resume_card);
-EXPORT_SYMBOL(pcmcia_suspend_card);
-
-EXPORT_SYMBOL(dead_socket);
-EXPORT_SYMBOL(pcmcia_parse_events);
struct class pcmcia_socket_class = {
.name = "pcmcia_socket",
@@ -983,11 +913,7 @@ EXPORT_SYMBOL(pcmcia_socket_class);
static int __init init_pcmcia_cs(void)
{
- int ret;
- printk(KERN_INFO "%s\n", release);
- printk(KERN_INFO " %s\n", options);
-
- ret = class_register(&pcmcia_socket_class);
+ int ret = class_register(&pcmcia_socket_class);
if (ret)
return (ret);
return class_interface_register(&pccard_sysfs_interface);
@@ -995,13 +921,10 @@ static int __init init_pcmcia_cs(void)
static void __exit exit_pcmcia_cs(void)
{
- printk(KERN_INFO "unloading Kernel Card Services\n");
- class_interface_unregister(&pccard_sysfs_interface);
- class_unregister(&pcmcia_socket_class);
+ class_interface_unregister(&pccard_sysfs_interface);
+ class_unregister(&pcmcia_socket_class);
}
subsys_initcall(init_pcmcia_cs);
module_exit(exit_pcmcia_cs);
-/*====================================================================*/
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 22:54:46 +0000