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1 | /*====================================================================== |
2 | ||
3 | Device driver for the PCMCIA control functionality of StrongARM | |
4 | SA-1100 microprocessors. | |
5 | ||
6 | The contents of this file are subject to the Mozilla Public | |
7 | License Version 1.1 (the "License"); you may not use this file | |
8 | except in compliance with the License. You may obtain a copy of | |
9 | the License at http://www.mozilla.org/MPL/ | |
10 | ||
11 | Software distributed under the License is distributed on an "AS | |
12 | IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or | |
13 | implied. See the License for the specific language governing | |
14 | rights and limitations under the License. | |
15 | ||
16 | The initial developer of the original code is John G. Dorsey | |
17 | <john+@cs.cmu.edu>. Portions created by John G. Dorsey are | |
18 | Copyright (C) 1999 John G. Dorsey. All Rights Reserved. | |
19 | ||
20 | Alternatively, the contents of this file may be used under the | |
21 | terms of the GNU Public License version 2 (the "GPL"), in which | |
22 | case the provisions of the GPL are applicable instead of the | |
23 | above. If you wish to allow the use of your version of this file | |
24 | only under the terms of the GPL and not to allow others to use | |
25 | your version of this file under the MPL, indicate your decision | |
26 | by deleting the provisions above and replace them with the notice | |
27 | and other provisions required by the GPL. If you do not delete | |
28 | the provisions above, a recipient may use your version of this | |
29 | file under either the MPL or the GPL. | |
30 | ||
31 | ======================================================================*/ | |
32 | ||
33 | #include <linux/module.h> | |
34 | #include <linux/init.h> | |
35 | #include <linux/config.h> | |
36 | ||
37 | #include <pcmcia/version.h> | |
38 | #include <pcmcia/cs_types.h> | |
39 | #include <pcmcia/cs.h> | |
40 | #include <pcmcia/ss.h> | |
41 | ||
42 | #include "sa1100_generic.h" | |
43 | ||
44 | static int (*sa11x0_pcmcia_hw_init[])(struct device *dev) = { | |
45 | #ifdef CONFIG_SA1100_ASSABET | |
46 | pcmcia_assabet_init, | |
47 | #endif | |
48 | #ifdef CONFIG_SA1100_CERF | |
49 | pcmcia_cerf_init, | |
50 | #endif | |
51 | #ifdef CONFIG_SA1100_H3600 | |
52 | pcmcia_h3600_init, | |
53 | #endif | |
54 | #ifdef CONFIG_SA1100_SHANNON | |
55 | pcmcia_shannon_init, | |
56 | #endif | |
57 | #ifdef CONFIG_SA1100_SIMPAD | |
58 | pcmcia_simpad_init, | |
59 | #endif | |
60 | }; | |
61 | ||
62 | static int sa11x0_drv_pcmcia_probe(struct device *dev) | |
63 | { | |
64 | int i, ret = -ENODEV; | |
65 | ||
66 | /* | |
67 | * Initialise any "on-board" PCMCIA sockets. | |
68 | */ | |
69 | for (i = 0; i < ARRAY_SIZE(sa11x0_pcmcia_hw_init); i++) { | |
70 | ret = sa11x0_pcmcia_hw_init[i](dev); | |
71 | if (ret == 0) | |
72 | break; | |
73 | } | |
74 | ||
75 | return ret; | |
76 | } | |
77 | ||
78 | static int sa11x0_drv_pcmcia_suspend(struct device *dev, u32 state, u32 level) | |
79 | { | |
80 | int ret = 0; | |
81 | if (level == SUSPEND_SAVE_STATE) | |
82 | ret = pcmcia_socket_dev_suspend(dev, state); | |
83 | return ret; | |
84 | } | |
85 | ||
86 | static int sa11x0_drv_pcmcia_resume(struct device *dev, u32 level) | |
87 | { | |
88 | int ret = 0; | |
89 | if (level == RESUME_RESTORE_STATE) | |
90 | ret = pcmcia_socket_dev_resume(dev); | |
91 | return ret; | |
92 | } | |
93 | ||
94 | static struct device_driver sa11x0_pcmcia_driver = { | |
95 | .probe = sa11x0_drv_pcmcia_probe, | |
96 | .remove = soc_common_drv_pcmcia_remove, | |
97 | .name = "sa11x0-pcmcia", | |
98 | .bus = &platform_bus_type, | |
99 | .suspend = sa11x0_drv_pcmcia_suspend, | |
100 | .resume = sa11x0_drv_pcmcia_resume, | |
101 | }; | |
102 | ||
103 | /* sa11x0_pcmcia_init() | |
104 | * ^^^^^^^^^^^^^^^^^^^^ | |
105 | * | |
106 | * This routine performs low-level PCMCIA initialization and then | |
107 | * registers this socket driver with Card Services. | |
108 | * | |
109 | * Returns: 0 on success, -ve error code on failure | |
110 | */ | |
111 | static int __init sa11x0_pcmcia_init(void) | |
112 | { | |
113 | return driver_register(&sa11x0_pcmcia_driver); | |
114 | } | |
115 | ||
116 | /* sa11x0_pcmcia_exit() | |
117 | * ^^^^^^^^^^^^^^^^^^^^ | |
118 | * Invokes the low-level kernel service to free IRQs associated with this | |
119 | * socket controller and reset GPIO edge detection. | |
120 | */ | |
121 | static void __exit sa11x0_pcmcia_exit(void) | |
122 | { | |
123 | driver_unregister(&sa11x0_pcmcia_driver); | |
124 | } | |
125 | ||
126 | MODULE_AUTHOR("John Dorsey <john+@cs.cmu.edu>"); | |
127 | MODULE_DESCRIPTION("Linux PCMCIA Card Services: SA-11x0 Socket Controller"); | |
128 | MODULE_LICENSE("Dual MPL/GPL"); | |
129 | ||
130 | module_init(sa11x0_pcmcia_init); | |
131 | module_exit(sa11x0_pcmcia_exit); |