131 lines
3.1 KiB
C
131 lines
3.1 KiB
C
|
/*
|
||
|
|
* Toshiba e740 PCMCIA specific routines.
|
||
|
|
*
|
||
|
|
* (c) 2004 Ian Molton <spyro@f2s.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/init.h>
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/errno.h>
|
||
|
|
#include <linux/gpio.h>
|
||
|
|
#include <linux/interrupt.h>
|
||
|
|
#include <linux/platform_device.h>
|
||
|
|
|
||
|
|
#include <mach/eseries-gpio.h>
|
||
|
|
|
||
|
|
#include <asm/irq.h>
|
||
|
|
#include <asm/mach-types.h>
|
||
|
|
|
||
|
|
#include "soc_common.h"
|
||
|
|
|
||
|
|
static int e740_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
|
||
|
|
{
|
||
|
|
if (skt->nr == 0) {
|
||
|
|
skt->stat[SOC_STAT_CD].gpio = GPIO_E740_PCMCIA_CD0;
|
||
|
|
skt->stat[SOC_STAT_CD].name = "CF card detect";
|
||
|
|
skt->stat[SOC_STAT_RDY].gpio = GPIO_E740_PCMCIA_RDY0;
|
||
|
|
skt->stat[SOC_STAT_RDY].name = "CF ready";
|
||
|
|
} else {
|
||
|
|
skt->stat[SOC_STAT_CD].gpio = GPIO_E740_PCMCIA_CD1;
|
||
|
|
skt->stat[SOC_STAT_CD].name = "Wifi switch";
|
||
|
|
skt->stat[SOC_STAT_RDY].gpio = GPIO_E740_PCMCIA_RDY1;
|
||
|
|
skt->stat[SOC_STAT_RDY].name = "Wifi ready";
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void e740_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
|
||
|
|
struct pcmcia_state *state)
|
||
|
|
{
|
||
|
|
state->vs_3v = 1;
|
||
|
|
state->vs_Xv = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int e740_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
|
||
|
|
const socket_state_t *state)
|
||
|
|
{
|
||
|
|
if (state->flags & SS_RESET) {
|
||
|
|
if (skt->nr == 0)
|
||
|
|
gpio_set_value(GPIO_E740_PCMCIA_RST0, 1);
|
||
|
|
else
|
||
|
|
gpio_set_value(GPIO_E740_PCMCIA_RST1, 1);
|
||
|
|
} else {
|
||
|
|
if (skt->nr == 0)
|
||
|
|
gpio_set_value(GPIO_E740_PCMCIA_RST0, 0);
|
||
|
|
else
|
||
|
|
gpio_set_value(GPIO_E740_PCMCIA_RST1, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
switch (state->Vcc) {
|
||
|
|
case 0: /* Socket off */
|
||
|
|
if (skt->nr == 0)
|
||
|
|
gpio_set_value(GPIO_E740_PCMCIA_PWR0, 0);
|
||
|
|
else
|
||
|
|
gpio_set_value(GPIO_E740_PCMCIA_PWR1, 1);
|
||
|
|
break;
|
||
|
|
case 50:
|
||
|
|
case 33: /* socket on */
|
||
|
|
if (skt->nr == 0)
|
||
|
|
gpio_set_value(GPIO_E740_PCMCIA_PWR0, 1);
|
||
|
|
else
|
||
|
|
gpio_set_value(GPIO_E740_PCMCIA_PWR1, 0);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
printk(KERN_ERR "e740_cs: Unsupported Vcc: %d\n", state->Vcc);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct pcmcia_low_level e740_pcmcia_ops = {
|
||
|
|
.owner = THIS_MODULE,
|
||
|
|
.hw_init = e740_pcmcia_hw_init,
|
||
|
|
.socket_state = e740_pcmcia_socket_state,
|
||
|
|
.configure_socket = e740_pcmcia_configure_socket,
|
||
|
|
.nr = 2,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct platform_device *e740_pcmcia_device;
|
||
|
|
|
||
|
|
static int __init e740_pcmcia_init(void)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
if (!machine_is_e740())
|
||
|
|
return -ENODEV;
|
||
|
|
|
||
|
|
e740_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
|
||
|
|
if (!e740_pcmcia_device)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
ret = platform_device_add_data(e740_pcmcia_device, &e740_pcmcia_ops,
|
||
|
|
sizeof(e740_pcmcia_ops));
|
||
|
|
|
||
|
|
if (!ret)
|
||
|
|
ret = platform_device_add(e740_pcmcia_device);
|
||
|
|
|
||
|
|
if (ret)
|
||
|
|
platform_device_put(e740_pcmcia_device);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __exit e740_pcmcia_exit(void)
|
||
|
|
{
|
||
|
|
platform_device_unregister(e740_pcmcia_device);
|
||
|
|
}
|
||
|
|
|
||
|
|
module_init(e740_pcmcia_init);
|
||
|
|
module_exit(e740_pcmcia_exit);
|
||
|
|
|
||
|
|
MODULE_LICENSE("GPL v2");
|
||
|
|
MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
|
||
|
|
MODULE_ALIAS("platform:pxa2xx-pcmcia");
|
||
|
|
MODULE_DESCRIPTION("e740 PCMCIA platform support");
|