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/*
* drivers/pcmcia/sa1100_cerf.c
*
* PCMCIA implementation routines for CerfBoard
* Based off the Assabet.
*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <mach/cerf.h>
#include "sa1100_generic.h"
#define CERF_SOCKET 1
static struct pcmcia_irqs irqs[] = {
{ CERF_SOCKET, CERF_IRQ_GPIO_CF_CD, "CF_CD" },
{ CERF_SOCKET, CERF_IRQ_GPIO_CF_BVD2, "CF_BVD2" },
{ CERF_SOCKET, CERF_IRQ_GPIO_CF_BVD1, "CF_BVD1" }
};
static int cerf_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
skt->irq = CERF_IRQ_GPIO_CF_IRQ;
return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
}
static void cerf_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
}
static void
cerf_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
{
unsigned long levels = GPLR;
state->detect = (levels & CERF_GPIO_CF_CD) ?0:1;
state->ready = (levels & CERF_GPIO_CF_IRQ) ?1:0;
state->bvd1 = (levels & CERF_GPIO_CF_BVD1)?1:0;
state->bvd2 = (levels & CERF_GPIO_CF_BVD2)?1:0;
state->wrprot = 0;
state->vs_3v = 1;
state->vs_Xv = 0;
}
static int
cerf_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
const socket_state_t *state)
{
switch (state->Vcc) {
case 0:
case 50:
case 33:
break;
default:
printk(KERN_ERR "%s(): unrecognized Vcc %u\n",
__func__, state->Vcc);
return -1;
}
if (state->flags & SS_RESET) {
GPSR = CERF_GPIO_CF_RESET;
} else {
GPCR = CERF_GPIO_CF_RESET;
}
return 0;
}
static void cerf_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
{
soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs));
}
static void cerf_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
{
soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
}
static struct pcmcia_low_level cerf_pcmcia_ops = {
.owner = THIS_MODULE,
.hw_init = cerf_pcmcia_hw_init,
.hw_shutdown = cerf_pcmcia_hw_shutdown,
.socket_state = cerf_pcmcia_socket_state,
.configure_socket = cerf_pcmcia_configure_socket,
.socket_init = cerf_pcmcia_socket_init,
.socket_suspend = cerf_pcmcia_socket_suspend,
};
int __init pcmcia_cerf_init(struct device *dev)
{
int ret = -ENODEV;
if (machine_is_cerf())
ret = sa11xx_drv_pcmcia_probe(dev, &cerf_pcmcia_ops, CERF_SOCKET, 1);
return ret;
}
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