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authorDominik Brodowski <linux@dominikbrodowski.net>2005-06-27 19:28:53 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-27 21:03:20 -0400
commit33519ddd43f4adc221ee7b2801dedd19ac97540b (patch)
treef80b15281279ff58fcfce01f15d32153cd825ec1 /drivers
parent1a8d46631e166a3c79fe1466ce8cfc4721fdf780 (diff)
[PATCH] pcmcia: cs.c cleanup
Clean up cs.c Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/pcmcia/cistpl.c1
-rw-r--r--drivers/pcmcia/cs.c209
-rw-r--r--drivers/pcmcia/pcmcia_ioctl.c10
3 files changed, 76 insertions, 144 deletions
diff --git a/drivers/pcmcia/cistpl.c b/drivers/pcmcia/cistpl.c
index a8aa7b9cf641..8567f4fad501 100644
--- a/drivers/pcmcia/cistpl.c
+++ b/drivers/pcmcia/cistpl.c
@@ -385,6 +385,7 @@ int pcmcia_replace_cis(struct pcmcia_socket *s, cisdump_t *cis)
385 memcpy(s->fake_cis, cis->Data, cis->Length); 385 memcpy(s->fake_cis, cis->Data, cis->Length);
386 return CS_SUCCESS; 386 return CS_SUCCESS;
387} 387}
388EXPORT_SYMBOL(pcmcia_replace_cis);
388 389
389/*====================================================================== 390/*======================================================================
390 391
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index 6a35a4a9f932..0ff4d6ec8b77 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -43,36 +43,11 @@
43#include <pcmcia/ds.h> 43#include <pcmcia/ds.h>
44#include "cs_internal.h" 44#include "cs_internal.h"
45 45
46#ifdef CONFIG_PCI
47#define PCI_OPT " [pci]"
48#else
49#define PCI_OPT ""
50#endif
51#ifdef CONFIG_CARDBUS
52#define CB_OPT " [cardbus]"
53#else
54#define CB_OPT ""
55#endif
56#ifdef CONFIG_PM
57#define PM_OPT " [pm]"
58#else
59#define PM_OPT ""
60#endif
61#if !defined(CONFIG_CARDBUS) && !defined(CONFIG_PCI) && !defined(CONFIG_PM)
62#define OPTIONS " none"
63#else
64#define OPTIONS PCI_OPT CB_OPT PM_OPT
65#endif
66
67static const char *release = "Linux Kernel Card Services";
68static const char *options = "options: " OPTIONS;
69
70/*====================================================================*/
71 46
72/* Module parameters */ 47/* Module parameters */
73 48
74MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); 49MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
75MODULE_DESCRIPTION("Linux Kernel Card Services\noptions:" OPTIONS); 50MODULE_DESCRIPTION("Linux Kernel Card Services");
76MODULE_LICENSE("GPL"); 51MODULE_LICENSE("GPL");
77 52
78#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0444) 53#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)
100} 75}
101#endif 76#endif
102 77
103/*====================================================================*/
104 78
105socket_state_t dead_socket = { 79socket_state_t dead_socket = {
106 .csc_mask = SS_DETECT, 80 .csc_mask = SS_DETECT,
107}; 81};
82EXPORT_SYMBOL(dead_socket);
108 83
109 84
110/* List of all sockets, protected by a rwsem */ 85/* List of all sockets, protected by a rwsem */
111LIST_HEAD(pcmcia_socket_list); 86LIST_HEAD(pcmcia_socket_list);
112DECLARE_RWSEM(pcmcia_socket_list_rwsem);
113EXPORT_SYMBOL(pcmcia_socket_list); 87EXPORT_SYMBOL(pcmcia_socket_list);
114EXPORT_SYMBOL(pcmcia_socket_list_rwsem);
115 88
89DECLARE_RWSEM(pcmcia_socket_list_rwsem);
90EXPORT_SYMBOL(pcmcia_socket_list_rwsem);
116 91
117/*====================================================================
118
119 Low-level PC Card interface drivers need to register with Card
120 Services using these calls.
121
122======================================================================*/
123 92
124/** 93/**
125 * socket drivers are expected to use the following callbacks in their 94 * Low-level PCMCIA socket drivers need to register with the PCCard
95 * core using pcmcia_register_socket.
96 *
97 * socket drivers are expected to use the following callbacks in their
126 * .drv struct: 98 * .drv struct:
127 * - pcmcia_socket_dev_suspend 99 * - pcmcia_socket_dev_suspend
128 * - pcmcia_socket_dev_resume 100 * - pcmcia_socket_dev_resume
@@ -222,8 +194,8 @@ int pcmcia_register_socket(struct pcmcia_socket *socket)
222 } 194 }
223 195
224 /* try to obtain a socket number [yes, it gets ugly if we 196 /* try to obtain a socket number [yes, it gets ugly if we
225 * register more than 2^sizeof(unsigned int) pcmcia 197 * register more than 2^sizeof(unsigned int) pcmcia
226 * sockets... but the socket number is deprecated 198 * sockets... but the socket number is deprecated
227 * anyways, so I don't care] */ 199 * anyways, so I don't care] */
228 down_write(&pcmcia_socket_list_rwsem); 200 down_write(&pcmcia_socket_list_rwsem);
229 if (list_empty(&pcmcia_socket_list)) 201 if (list_empty(&pcmcia_socket_list))
@@ -332,54 +304,49 @@ struct pcmcia_socket * pcmcia_get_socket_by_nr(unsigned int nr)
332EXPORT_SYMBOL(pcmcia_get_socket_by_nr); 304EXPORT_SYMBOL(pcmcia_get_socket_by_nr);
333 305
334 306
335/*====================================================================== 307/**
336 308 * socket_setup() and shutdown_socket() are called by the main event
337 socket_setup() and shutdown_socket() are called by the main event 309 * handler when card insertion and removal events are received.
338 handler when card insertion and removal events are received. 310 * socket_setup() turns on socket power and resets the socket, in two stages.
339 socket_setup() turns on socket power and resets the socket, in two stages. 311 * shutdown_socket() unconfigures a socket and turns off socket power.
340 shutdown_socket() unconfigures a socket and turns off socket power. 312 */
341
342======================================================================*/
343
344static void shutdown_socket(struct pcmcia_socket *s) 313static void shutdown_socket(struct pcmcia_socket *s)
345{ 314{
346 cs_dbg(s, 1, "shutdown_socket\n"); 315 cs_dbg(s, 1, "shutdown_socket\n");
347 316
348 /* Blank out the socket state */ 317 /* Blank out the socket state */
349 s->socket = dead_socket; 318 s->socket = dead_socket;
350 s->ops->init(s); 319 s->ops->init(s);
351 s->ops->set_socket(s, &s->socket); 320 s->ops->set_socket(s, &s->socket);
352 s->irq.AssignedIRQ = s->irq.Config = 0; 321 s->irq.AssignedIRQ = s->irq.Config = 0;
353 s->lock_count = 0; 322 s->lock_count = 0;
354 destroy_cis_cache(s); 323 destroy_cis_cache(s);
355#ifdef CONFIG_CARDBUS 324#ifdef CONFIG_CARDBUS
356 cb_free(s); 325 cb_free(s);
357#endif 326#endif
358 s->functions = 0; 327 s->functions = 0;
359 if (s->config) { 328 if (s->config) {
360 kfree(s->config); 329 kfree(s->config);
361 s->config = NULL; 330 s->config = NULL;
362 }
363
364 {
365 int status;
366 s->ops->get_status(s, &status);
367 if (status & SS_POWERON) {
368 printk(KERN_ERR "PCMCIA: socket %p: *** DANGER *** unable to remove socket power\n", s);
369 } 331 }
370 }
371} /* shutdown_socket */
372 332
373/*====================================================================== 333 {
334 int status;
335 s->ops->get_status(s, &status);
336 if (status & SS_POWERON) {
337 printk(KERN_ERR "PCMCIA: socket %p: *** DANGER *** unable to remove socket power\n", s);
338 }
339 }
340} /* shutdown_socket */
374 341
375 The central event handler. Send_event() sends an event to the
376 16-bit subsystem, which then calls the relevant device drivers.
377 Parse_events() interprets the event bits from
378 a card status change report. Do_shutdown() handles the high
379 priority stuff associated with a card removal.
380
381======================================================================*/
382 342
343/**
344 * The central event handler. Send_event() sends an event to the
345 * 16-bit subsystem, which then calls the relevant device drivers.
346 * Parse_events() interprets the event bits from
347 * a card status change report. Do_shutdown() handles the high
348 * priority stuff associated with a card removal.
349 */
383 350
384/* NOTE: send_event needs to be called with skt->sem held. */ 351/* NOTE: send_event needs to be called with skt->sem held. */
385 352
@@ -738,27 +705,7 @@ void pcmcia_parse_events(struct pcmcia_socket *s, u_int events)
738 wake_up(&s->thread_wait); 705 wake_up(&s->thread_wait);
739 } 706 }
740} /* pcmcia_parse_events */ 707} /* pcmcia_parse_events */
741 708EXPORT_SYMBOL(pcmcia_parse_events);
742
743/*=====================================================================
744
745 Return the PCI device associated with a card..
746
747======================================================================*/
748
749#ifdef CONFIG_CARDBUS
750
751struct pci_bus *pcmcia_lookup_bus(struct pcmcia_socket *s)
752{
753 if (!s || !(s->state & SOCKET_CARDBUS))
754 return NULL;
755
756 return s->cb_dev->subordinate;
757}
758
759EXPORT_SYMBOL(pcmcia_lookup_bus);
760
761#endif
762 709
763 710
764/* register pcmcia_callback */ 711/* register pcmcia_callback */
@@ -790,18 +737,15 @@ int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c)
790EXPORT_SYMBOL(pccard_register_pcmcia); 737EXPORT_SYMBOL(pccard_register_pcmcia);
791 738
792 739
793/*====================================================================== 740/* I'm not sure which "reset" function this is supposed to use,
794 741 * but for now, it uses the low-level interface's reset, not the
795 I'm not sure which "reset" function this is supposed to use, 742 * CIS register.
796 but for now, it uses the low-level interface's reset, not the 743 */
797 CIS register.
798
799======================================================================*/
800 744
801int pccard_reset_card(struct pcmcia_socket *skt) 745int pccard_reset_card(struct pcmcia_socket *skt)
802{ 746{
803 int ret; 747 int ret;
804 748
805 cs_dbg(skt, 1, "resetting socket\n"); 749 cs_dbg(skt, 1, "resetting socket\n");
806 750
807 down(&skt->skt_sem); 751 down(&skt->skt_sem);
@@ -834,17 +778,14 @@ int pccard_reset_card(struct pcmcia_socket *skt)
834} /* reset_card */ 778} /* reset_card */
835EXPORT_SYMBOL(pccard_reset_card); 779EXPORT_SYMBOL(pccard_reset_card);
836 780
837/*======================================================================
838
839 These shut down or wake up a socket. They are sort of user
840 initiated versions of the APM suspend and resume actions.
841
842======================================================================*/
843 781
782/* These shut down or wake up a socket. They are sort of user
783 * initiated versions of the APM suspend and resume actions.
784 */
844int pcmcia_suspend_card(struct pcmcia_socket *skt) 785int pcmcia_suspend_card(struct pcmcia_socket *skt)
845{ 786{
846 int ret; 787 int ret;
847 788
848 cs_dbg(skt, 1, "suspending socket\n"); 789 cs_dbg(skt, 1, "suspending socket\n");
849 790
850 down(&skt->skt_sem); 791 down(&skt->skt_sem);
@@ -863,6 +804,8 @@ int pcmcia_suspend_card(struct pcmcia_socket *skt)
863 804
864 return ret; 805 return ret;
865} /* suspend_card */ 806} /* suspend_card */
807EXPORT_SYMBOL(pcmcia_suspend_card);
808
866 809
867int pcmcia_resume_card(struct pcmcia_socket *skt) 810int pcmcia_resume_card(struct pcmcia_socket *skt)
868{ 811{
@@ -886,13 +829,10 @@ int pcmcia_resume_card(struct pcmcia_socket *skt)
886 829
887 return ret; 830 return ret;
888} /* resume_card */ 831} /* resume_card */
832EXPORT_SYMBOL(pcmcia_resume_card);
889 833
890/*======================================================================
891
892 These handle user requests to eject or insert a card.
893
894======================================================================*/
895 834
835/* These handle user requests to eject or insert a card. */
896int pcmcia_eject_card(struct pcmcia_socket *skt) 836int pcmcia_eject_card(struct pcmcia_socket *skt)
897{ 837{
898 int ret; 838 int ret;
@@ -919,6 +859,8 @@ int pcmcia_eject_card(struct pcmcia_socket *skt)
919 859
920 return ret; 860 return ret;
921} /* eject_card */ 861} /* eject_card */
862EXPORT_SYMBOL(pcmcia_eject_card);
863
922 864
923int pcmcia_insert_card(struct pcmcia_socket *skt) 865int pcmcia_insert_card(struct pcmcia_socket *skt)
924{ 866{
@@ -942,6 +884,8 @@ int pcmcia_insert_card(struct pcmcia_socket *skt)
942 884
943 return ret; 885 return ret;
944} /* insert_card */ 886} /* insert_card */
887EXPORT_SYMBOL(pcmcia_insert_card);
888
945 889
946static int pcmcia_socket_hotplug(struct class_device *dev, char **envp, 890static int pcmcia_socket_hotplug(struct class_device *dev, char **envp,
947 int num_envp, char *buffer, int buffer_size) 891 int num_envp, char *buffer, int buffer_size)
@@ -958,20 +902,6 @@ static int pcmcia_socket_hotplug(struct class_device *dev, char **envp,
958 return 0; 902 return 0;
959} 903}
960 904
961/*======================================================================
962
963 OS-specific module glue goes here
964
965======================================================================*/
966/* in alpha order */
967EXPORT_SYMBOL(pcmcia_eject_card);
968EXPORT_SYMBOL(pcmcia_insert_card);
969EXPORT_SYMBOL(pcmcia_replace_cis);
970EXPORT_SYMBOL(pcmcia_resume_card);
971EXPORT_SYMBOL(pcmcia_suspend_card);
972
973EXPORT_SYMBOL(dead_socket);
974EXPORT_SYMBOL(pcmcia_parse_events);
975 905
976struct class pcmcia_socket_class = { 906struct class pcmcia_socket_class = {
977 .name = "pcmcia_socket", 907 .name = "pcmcia_socket",
@@ -983,11 +913,7 @@ EXPORT_SYMBOL(pcmcia_socket_class);
983 913
984static int __init init_pcmcia_cs(void) 914static int __init init_pcmcia_cs(void)
985{ 915{
986 int ret; 916 int ret = class_register(&pcmcia_socket_class);
987 printk(KERN_INFO "%s\n", release);
988 printk(KERN_INFO " %s\n", options);
989
990 ret = class_register(&pcmcia_socket_class);
991 if (ret) 917 if (ret)
992 return (ret); 918 return (ret);
993 return class_interface_register(&pccard_sysfs_interface); 919 return class_interface_register(&pccard_sysfs_interface);
@@ -995,13 +921,10 @@ static int __init init_pcmcia_cs(void)
995 921
996static void __exit exit_pcmcia_cs(void) 922static void __exit exit_pcmcia_cs(void)
997{ 923{
998 printk(KERN_INFO "unloading Kernel Card Services\n"); 924 class_interface_unregister(&pccard_sysfs_interface);
999 class_interface_unregister(&pccard_sysfs_interface); 925 class_unregister(&pcmcia_socket_class);
1000 class_unregister(&pcmcia_socket_class);
1001} 926}
1002 927
1003subsys_initcall(init_pcmcia_cs); 928subsys_initcall(init_pcmcia_cs);
1004module_exit(exit_pcmcia_cs); 929module_exit(exit_pcmcia_cs);
1005 930
1006/*====================================================================*/
1007
diff --git a/drivers/pcmcia/pcmcia_ioctl.c b/drivers/pcmcia/pcmcia_ioctl.c
index 7aa2e7f20d50..fa2a79d29e16 100644
--- a/drivers/pcmcia/pcmcia_ioctl.c
+++ b/drivers/pcmcia/pcmcia_ioctl.c
@@ -275,8 +275,16 @@ rescan:
275 return (ret); 275 return (ret);
276} /* bind_request */ 276} /* bind_request */
277 277
278#ifdef CONFIG_CARDBUS
279
280static struct pci_bus *pcmcia_lookup_bus(struct pcmcia_socket *s)
281{
282 if (!s || !(s->state & SOCKET_CARDBUS))
283 return NULL;
278 284
279extern struct pci_bus *pcmcia_lookup_bus(struct pcmcia_socket *s); 285 return s->cb_dev->subordinate;
286}
287#endif
280 288
281static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int first) 289static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int first)
282{ 290{