1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
/*
* linux/drivers/pcmcia/pxa2xx_palmld.c
*
* Driver for Palm LifeDrive PCMCIA
*
* Copyright (C) 2006 Alex Osborne <ato@meshy.org>
* Copyright (C) 2007-2008 Marek Vasut <marek.vasut@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <asm/mach-types.h>
#include <mach/palmld.h>
#include "soc_common.h"
static int palmld_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
int ret;
ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_POWER, "PCMCIA PWR");
if (ret)
goto err1;
ret = gpio_direction_output(GPIO_NR_PALMLD_PCMCIA_POWER, 0);
if (ret)
goto err2;
ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_RESET, "PCMCIA RST");
if (ret)
goto err2;
ret = gpio_direction_output(GPIO_NR_PALMLD_PCMCIA_RESET, 1);
if (ret)
goto err3;
ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_READY, "PCMCIA RDY");
if (ret)
goto err3;
ret = gpio_direction_input(GPIO_NR_PALMLD_PCMCIA_READY);
if (ret)
goto err4;
skt->irq = IRQ_GPIO(GPIO_NR_PALMLD_PCMCIA_READY);
return 0;
err4:
gpio_free(GPIO_NR_PALMLD_PCMCIA_READY);
err3:
gpio_free(GPIO_NR_PALMLD_PCMCIA_RESET);
err2:
gpio_free(GPIO_NR_PALMLD_PCMCIA_POWER);
err1:
return ret;
}
static void palmld_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
gpio_free(GPIO_NR_PALMLD_PCMCIA_READY);
gpio_free(GPIO_NR_PALMLD_PCMCIA_RESET);
gpio_free(GPIO_NR_PALMLD_PCMCIA_POWER);
}
static void palmld_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
struct pcmcia_state *state)
{
state->detect = 1; /* always inserted */
state->ready = !!gpio_get_value(GPIO_NR_PALMLD_PCMCIA_READY);
state->bvd1 = 1;
state->bvd2 = 1;
state->wrprot = 0;
state->vs_3v = 1;
state->vs_Xv = 0;
}
static int palmld_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
const socket_state_t *state)
{
gpio_set_value(GPIO_NR_PALMLD_PCMCIA_POWER, 1);
gpio_set_value(GPIO_NR_PALMLD_PCMCIA_RESET,
!!(state->flags & SS_RESET));
return 0;
}
static void palmld_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
{
}
static void palmld_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
{
}
static struct pcmcia_low_level palmld_pcmcia_ops = {
.owner = THIS_MODULE,
.first = 0,
.nr = 2,
.hw_init = palmld_pcmcia_hw_init,
.hw_shutdown = palmld_pcmcia_hw_shutdown,
.socket_state = palmld_pcmcia_socket_state,
.configure_socket = palmld_pcmcia_configure_socket,
.socket_init = palmld_pcmcia_socket_init,
.socket_suspend = palmld_pcmcia_socket_suspend,
};
static struct platform_device *palmld_pcmcia_device;
static int __init palmld_pcmcia_init(void)
{
int ret;
if (!machine_is_palmld())
return -ENODEV;
palmld_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
if (!palmld_pcmcia_device)
return -ENOMEM;
ret = platform_device_add_data(palmld_pcmcia_device, &palmld_pcmcia_ops,
sizeof(palmld_pcmcia_ops));
if (!ret)
ret = platform_device_add(palmld_pcmcia_device);
if (ret)
platform_device_put(palmld_pcmcia_device);
return ret;
}
static void __exit palmld_pcmcia_exit(void)
{
platform_device_unregister(palmld_pcmcia_device);
}
module_init(palmld_pcmcia_init);
module_exit(palmld_pcmcia_exit);
MODULE_AUTHOR("Alex Osborne <ato@meshy.org>,"
" Marek Vasut <marek.vasut@gmail.com>");
MODULE_DESCRIPTION("PCMCIA support for Palm LifeDrive");
MODULE_ALIAS("platform:pxa2xx-pcmcia");
MODULE_LICENSE("GPL");
|
