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/*

 * drivers/pcmcia/sa1100_adsbitsy.c

 *

 * PCMCIA implementation routines for ADS Bitsy

 *

 * 9/18/01 Woojung

 *         Fixed wrong PCMCIA voltage setting

 *

 * 7/5/01 Woojung Huh <whuh@applieddata.net>

 *

 */

#include <linux/kernel.h>

#include <linux/sched.h>

#include <asm/hardware.h>

#include "sa1100_generic.h"

#include "sa1111_generic.h"

static int adsbitsy_pcmcia_init(struct pcmcia_init *init)

{

  /* Set GPIO_A<3:0> to be outputs for PCMCIA/CF power controller: */

  PA_DDR &= ~(GPIO_GPIO0 | GPIO_GPIO1 | GPIO_GPIO2 | GPIO_GPIO3);

  /* Disable Power 3.3V/5V for PCMCIA/CF */

  PA_DWR |= GPIO_GPIO0 | GPIO_GPIO1 | GPIO_GPIO2 | GPIO_GPIO3;

  /* Why? */

  MECR = 0x09430943;

  return sa1111_pcmcia_init(init);

}

static int

adsbitsy_pcmcia_configure_socket(const struct pcmcia_configure *conf)

{

  unsigned int pa_dwr_mask, pa_dwr_set;

  int ret;

  switch (conf->sock) {

  case 0:

    pa_dwr_mask = GPIO_GPIO0 | GPIO_GPIO1;

    switch (conf->vcc) {

    default:

    case 0:      pa_dwr_set = GPIO_GPIO0 | GPIO_GPIO1;   break;

    case 33:    pa_dwr_set = GPIO_GPIO1;                break;

    case 50:    pa_dwr_set = GPIO_GPIO0;                break;

    }

    break;

  case 1:

    pa_dwr_mask = GPIO_GPIO2 | GPIO_GPIO3;

    switch (conf->vcc) {

    default:

    case 0:      pa_dwr_set = 0;                          break;

    case 33:    pa_dwr_set = GPIO_GPIO2;                break;

    case 50:    pa_dwr_set = GPIO_GPIO3;                break;

    }

  default:

    return -1;

  }

  if (conf->vpp != conf->vcc && conf->vpp != 0) {

    printk(KERN_ERR "%s(): CF slot cannot support VPP %u\n",

                __FUNCTION__, conf->vpp);

    return -1;

  }

  ret = sa1111_pcmcia_configure_socket(conf);

  if (ret == 0) {

    unsigned long flags;

    local_irq_save(flags);

    PA_DWR = (PA_DWR & ~pa_dwr_mask) | pa_dwr_set;

    local_irq_restore(flags);

  }

  return ret;

}

struct pcmcia_low_level adsbitsy_pcmcia_ops = {

  init:                 adsbitsy_pcmcia_init,

  shutdown:             sa1111_pcmcia_shutdown,

  socket_state:         sa1111_pcmcia_socket_state,

  get_irq_info:         sa1111_pcmcia_get_irq_info,

  configure_socket:     adsbitsy_pcmcia_configure_socket,

  socket_init:          sa1111_pcmcia_socket_init,

  socket_suspend:       sa1111_pcmcia_socket_suspend,

};