linux-imx

/*

 * linux/drivers/pcmcia/pxa2xx_palmtx.c

 *

 * Driver for Palm T|X PCMCIA

 *

 * Copyright (C) 2007-2011 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/palmtx.h>

#include "soc_common.h"

​

static struct gpio palmtx_pcmcia_gpios[] = {

    { GPIO_NR_PALMTX_PCMCIA_POWER1, GPIOF_INIT_LOW, "PCMCIA Power 1" },

    { GPIO_NR_PALMTX_PCMCIA_POWER2, GPIOF_INIT_LOW, "PCMCIA Power 2" },

    { GPIO_NR_PALMTX_PCMCIA_RESET,  GPIOF_INIT_HIGH,"PCMCIA Reset" },

};

​

static int palmtx_pcmcia_hw_init(struct soc_pcmcia_socket *skt)

{

    int ret;

​

    ret = gpio_request_array(palmtx_pcmcia_gpios,

                ARRAY_SIZE(palmtx_pcmcia_gpios));

​

    skt->stat[SOC_STAT_RDY].gpio = GPIO_NR_PALMTX_PCMCIA_READY;

    skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready";

​

    return ret;

}

​

static void palmtx_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)

{

    gpio_free_array(palmtx_pcmcia_gpios, ARRAY_SIZE(palmtx_pcmcia_gpios));

}

​

static void palmtx_pcmcia_socket_state(struct soc_pcmcia_socket *skt,

                    struct pcmcia_state *state)

{

    state->detect = 1; /* always inserted */

    state->vs_3v  = 1;

    state->vs_Xv  = 0;

}

​

static int

palmtx_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,

                const socket_state_t *state)

{

    gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER1, 1);

    gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER2, 1);

    gpio_set_value(GPIO_NR_PALMTX_PCMCIA_RESET,

            !!(state->flags & SS_RESET));

​

    return 0;