Commit | Line | Data |
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6d341675 MV |
1 | /* |
2 | * linux/drivers/pcmcia/pxa2xx_palmld.c | |
3 | * | |
4 | * Driver for Palm LifeDrive PCMCIA | |
5 | * | |
6 | * Copyright (C) 2006 Alex Osborne <ato@meshy.org> | |
9ed3fbf1 | 7 | * Copyright (C) 2007-2011 Marek Vasut <marek.vasut@gmail.com> |
6d341675 MV |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | * | |
13 | */ | |
14 | ||
15 | #include <linux/module.h> | |
16 | #include <linux/platform_device.h> | |
17 | #include <linux/gpio.h> | |
18 | ||
19 | #include <asm/mach-types.h> | |
20 | #include <mach/palmld.h> | |
21 | #include "soc_common.h" | |
22 | ||
2070417d MV |
23 | static struct gpio palmld_pcmcia_gpios[] = { |
24 | { GPIO_NR_PALMLD_PCMCIA_POWER, GPIOF_INIT_LOW, "PCMCIA Power" }, | |
25 | { GPIO_NR_PALMLD_PCMCIA_RESET, GPIOF_INIT_HIGH,"PCMCIA Reset" }, | |
26 | { GPIO_NR_PALMLD_PCMCIA_READY, GPIOF_IN, "PCMCIA Ready" }, | |
27 | }; | |
28 | ||
6d341675 MV |
29 | static int palmld_pcmcia_hw_init(struct soc_pcmcia_socket *skt) |
30 | { | |
31 | int ret; | |
32 | ||
2070417d MV |
33 | ret = gpio_request_array(palmld_pcmcia_gpios, |
34 | ARRAY_SIZE(palmld_pcmcia_gpios)); | |
6d341675 | 35 | |
34641de2 | 36 | skt->socket.pci_irq = gpio_to_irq(GPIO_NR_PALMLD_PCMCIA_READY); |
6d341675 | 37 | |
6d341675 MV |
38 | return ret; |
39 | } | |
40 | ||
41 | static void palmld_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) | |
42 | { | |
2070417d | 43 | gpio_free_array(palmld_pcmcia_gpios, ARRAY_SIZE(palmld_pcmcia_gpios)); |
6d341675 MV |
44 | } |
45 | ||
46 | static void palmld_pcmcia_socket_state(struct soc_pcmcia_socket *skt, | |
47 | struct pcmcia_state *state) | |
48 | { | |
49 | state->detect = 1; /* always inserted */ | |
50 | state->ready = !!gpio_get_value(GPIO_NR_PALMLD_PCMCIA_READY); | |
51 | state->bvd1 = 1; | |
52 | state->bvd2 = 1; | |
53 | state->wrprot = 0; | |
54 | state->vs_3v = 1; | |
55 | state->vs_Xv = 0; | |
56 | } | |
57 | ||
58 | static int palmld_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, | |
59 | const socket_state_t *state) | |
60 | { | |
61 | gpio_set_value(GPIO_NR_PALMLD_PCMCIA_POWER, 1); | |
62 | gpio_set_value(GPIO_NR_PALMLD_PCMCIA_RESET, | |
63 | !!(state->flags & SS_RESET)); | |
64 | ||
65 | return 0; | |
66 | } | |
67 | ||
6d341675 MV |
68 | static struct pcmcia_low_level palmld_pcmcia_ops = { |
69 | .owner = THIS_MODULE, | |
70 | ||
d66ea8d4 MV |
71 | .first = 1, |
72 | .nr = 1, | |
6d341675 MV |
73 | |
74 | .hw_init = palmld_pcmcia_hw_init, | |
75 | .hw_shutdown = palmld_pcmcia_hw_shutdown, | |
76 | ||
77 | .socket_state = palmld_pcmcia_socket_state, | |
78 | .configure_socket = palmld_pcmcia_configure_socket, | |
6d341675 MV |
79 | }; |
80 | ||
81 | static struct platform_device *palmld_pcmcia_device; | |
82 | ||
83 | static int __init palmld_pcmcia_init(void) | |
84 | { | |
85 | int ret; | |
86 | ||
87 | if (!machine_is_palmld()) | |
88 | return -ENODEV; | |
89 | ||
90 | palmld_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); | |
91 | if (!palmld_pcmcia_device) | |
92 | return -ENOMEM; | |
93 | ||
94 | ret = platform_device_add_data(palmld_pcmcia_device, &palmld_pcmcia_ops, | |
95 | sizeof(palmld_pcmcia_ops)); | |
96 | ||
97 | if (!ret) | |
98 | ret = platform_device_add(palmld_pcmcia_device); | |
99 | ||
100 | if (ret) | |
101 | platform_device_put(palmld_pcmcia_device); | |
102 | ||
103 | return ret; | |
104 | } | |
105 | ||
106 | static void __exit palmld_pcmcia_exit(void) | |
107 | { | |
108 | platform_device_unregister(palmld_pcmcia_device); | |
109 | } | |
110 | ||
111 | module_init(palmld_pcmcia_init); | |
112 | module_exit(palmld_pcmcia_exit); | |
113 | ||
114 | MODULE_AUTHOR("Alex Osborne <ato@meshy.org>," | |
115 | " Marek Vasut <marek.vasut@gmail.com>"); | |
116 | MODULE_DESCRIPTION("PCMCIA support for Palm LifeDrive"); | |
117 | MODULE_ALIAS("platform:pxa2xx-pcmcia"); | |
118 | MODULE_LICENSE("GPL"); |