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Kernel
提交 33519ddd 编写于 作者: D Dominik Brodowski 提交者： Linus Torvalds
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[PATCH] pcmcia: cs.c cleanup 

Clean up cs.c
Signed-off-by: NDominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
上级 1a8d4663
隐藏空白更改
内联 并排
Showing with 76 addition and 144 deletion
drivers/pcmcia/cistpl.c
浏览文件 @ 33519ddd
......@@ -385,6 +385,7 @@ int pcmcia_replace_cis(struct pcmcia_socket *s, cisdump_t *cis)
memcpy(s->fake_cis, cis->Data, cis->Length);
return CS_SUCCESS;
}
EXPORT_SYMBOL(pcmcia_replace_cis);
/*======================================================================
......
drivers/pcmcia/cs.c
浏览文件 @ 33519ddd
......@@ -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);
/*====================================================================*/
drivers/pcmcia/pcmcia_ioctl.c
浏览文件 @ 33519ddd
......@@ -275,8 +275,16 @@ static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info)
return (ret);
} /* bind_request */
#ifdef CONFIG_CARDBUS
static struct pci_bus *pcmcia_lookup_bus(struct pcmcia_socket *s)
{
if (!s || !(s->state & SOCKET_CARDBUS))
return NULL;
extern struct pci_bus *pcmcia_lookup_bus(struct pcmcia_socket *s);
return s->cb_dev->subordinate;
}
#endif
static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int first)
{
......
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