/*
   * linux/drivers/pcmcia/pxa2xx_palmld.c
   *
   * Driver for Palm LifeDrive PCMCIA
   *
   * Copyright (C) 2006 Alex Osborne <ato@meshy.org>

   * 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/palmld.h>
  #include "soc_common.h"

  static struct gpio palmld_pcmcia_gpios[] = {
  	{ GPIO_NR_PALMLD_PCMCIA_POWER,	GPIOF_INIT_LOW,	"PCMCIA Power" },
  	{ GPIO_NR_PALMLD_PCMCIA_RESET,	GPIOF_INIT_HIGH,"PCMCIA Reset" },
  	{ GPIO_NR_PALMLD_PCMCIA_READY,	GPIOF_IN,	"PCMCIA Ready" },
  };

  static int palmld_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
  {
  	int ret;

  	ret = gpio_request_array(palmld_pcmcia_gpios,
  				ARRAY_SIZE(palmld_pcmcia_gpios));

  	skt->socket.pci_irq = gpio_to_irq(GPIO_NR_PALMLD_PCMCIA_READY);

  	return ret;
  }
  
  static void palmld_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
  {

  	gpio_free_array(palmld_pcmcia_gpios, ARRAY_SIZE(palmld_pcmcia_gpios));

  }
  
  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 struct pcmcia_low_level palmld_pcmcia_ops = {
  	.owner			= THIS_MODULE,

  	.first			= 1,
  	.nr			= 1,

  
  	.hw_init		= palmld_pcmcia_hw_init,
  	.hw_shutdown		= palmld_pcmcia_hw_shutdown,
  
  	.socket_state		= palmld_pcmcia_socket_state,
  	.configure_socket	= palmld_pcmcia_configure_socket,

  };
  
  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");