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/*
* linux/drivers/pcmcia/sa1111_generic.c
*
* We implement the generic parts of a SA1111 PCMCIA driver. This
* basically means we handle everything except controlling the
* power. Power is machine specific...
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/ioport.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <pcmcia/ss.h>
#include <mach/hardware.h>
#include <asm/hardware/sa1111.h>
#include <asm/irq.h>
#include "sa1111_generic.h"
#define IDX_IRQ_S0_READY_NINT (0)
#define IDX_IRQ_S0_CD_VALID (1)
#define IDX_IRQ_S0_BVD1_STSCHG (2)
#define IDX_IRQ_S1_READY_NINT (3)
#define IDX_IRQ_S1_CD_VALID (4)
#define IDX_IRQ_S1_BVD1_STSCHG (5)
static struct pcmcia_irqs irqs[] = {
{ 0, NO_IRQ, "SA1111 PCMCIA card detect" },
{ 0, NO_IRQ, "SA1111 PCMCIA BVD1" },
{ 1, NO_IRQ, "SA1111 CF card detect" },
{ 1, NO_IRQ, "SA1111 CF BVD1" },
};
static int sa1111_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
}
static void sa1111_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
}
void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
{
struct sa1111_pcmcia_socket *s = to_skt(skt);
unsigned long status = sa1111_readl(s->dev->mapbase + SA1111_PCSR);
switch (skt->nr) {
case 0:
state->detect = status & PCSR_S0_DETECT ? 0 : 1;
state->ready = status & PCSR_S0_READY ? 1 : 0;
state->bvd1 = status & PCSR_S0_BVD1 ? 1 : 0;
state->bvd2 = status & PCSR_S0_BVD2 ? 1 : 0;
state->wrprot = status & PCSR_S0_WP ? 1 : 0;
state->vs_3v = status & PCSR_S0_VS1 ? 0 : 1;
state->vs_Xv = status & PCSR_S0_VS2 ? 0 : 1;
break;
case 1:
state->detect = status & PCSR_S1_DETECT ? 0 : 1;
state->ready = status & PCSR_S1_READY ? 1 : 0;
state->bvd1 = status & PCSR_S1_BVD1 ? 1 : 0;
state->bvd2 = status & PCSR_S1_BVD2 ? 1 : 0;
state->wrprot = status & PCSR_S1_WP ? 1 : 0;
state->vs_3v = status & PCSR_S1_VS1 ? 0 : 1;
state->vs_Xv = status & PCSR_S1_VS2 ? 0 : 1;
break;
}
}
int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
{
struct sa1111_pcmcia_socket *s = to_skt(skt);
unsigned int pccr_skt_mask, pccr_set_mask, val;
unsigned long flags;
switch (skt->nr) {
case 0:
pccr_skt_mask = PCCR_S0_RST|PCCR_S0_FLT|PCCR_S0_PWAITEN|PCCR_S0_PSE;
break;
case 1:
pccr_skt_mask = PCCR_S1_RST|PCCR_S1_FLT|PCCR_S1_PWAITEN|PCCR_S1_PSE;
break;
default:
return -1;
}
pccr_set_mask = 0;
if (state->Vcc != 0)
pccr_set_mask |= PCCR_S0_PWAITEN|PCCR_S1_PWAITEN;
if (state->Vcc == 50)
pccr_set_mask |= PCCR_S0_PSE|PCCR_S1_PSE;
if (state->flags & SS_RESET)
pccr_set_mask |= PCCR_S0_RST|PCCR_S1_RST;
if (state->flags & SS_OUTPUT_ENA)
pccr_set_mask |= PCCR_S0_FLT|PCCR_S1_FLT;
local_irq_save(flags);
val = sa1111_readl(s->dev->mapbase + SA1111_PCCR);
val &= ~pccr_skt_mask;
val |= pccr_set_mask & pccr_skt_mask;
sa1111_writel(val, s->dev->mapbase + SA1111_PCCR);
local_irq_restore(flags);
return 0;
}
void sa1111_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
{
soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs));
}
static void sa1111_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
{
soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
}
int sa1111_pcmcia_add(struct sa1111_dev *dev, struct pcmcia_low_level *ops,
int (*add)(struct soc_pcmcia_socket *))
{
struct sa1111_pcmcia_socket *s;
int i, ret = 0;
ops->hw_init = sa1111_pcmcia_hw_init;
ops->hw_shutdown = sa1111_pcmcia_hw_shutdown;
ops->socket_state = sa1111_pcmcia_socket_state;
ops->socket_suspend = sa1111_pcmcia_socket_suspend;
for (i = 0; i < ops->nr; i++) {
s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s)
return -ENOMEM;
s->soc.nr = ops->first + i;
s->soc.ops = ops;
s->soc.socket.owner = ops->owner;
s->soc.socket.dev.parent = &dev->dev;
s->soc.socket.pci_irq = s->soc.nr ?
dev->irq[IDX_IRQ_S0_READY_NINT] :
dev->irq[IDX_IRQ_S1_READY_NINT];
s->dev = dev;
ret = add(&s->soc);
if (ret == 0) {
s->next = dev_get_drvdata(&dev->dev);
dev_set_drvdata(&dev->dev, s);
} else
kfree(s);
}
return ret;
}
static int pcmcia_probe(struct sa1111_dev *dev)
{
void __iomem *base;
dev_set_drvdata(&dev->dev, NULL);
if (!request_mem_region(dev->res.start, 512,
SA1111_DRIVER_NAME(dev)))
return -EBUSY;
base = dev->mapbase;
/* Initialize PCMCIA IRQs */
irqs[0].irq = dev->irq[IDX_IRQ_S0_CD_VALID];
irqs[1].irq = dev->irq[IDX_IRQ_S0_BVD1_STSCHG];
irqs[2].irq = dev->irq[IDX_IRQ_S1_CD_VALID];
irqs[3].irq = dev->irq[IDX_IRQ_S1_BVD1_STSCHG];
/*
* Initialise the suspend state.
*/
sa1111_writel(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + SA1111_PCSSR);
sa1111_writel(PCCR_S0_FLT | PCCR_S1_FLT, base + SA1111_PCCR);
#ifdef CONFIG_SA1100_BADGE4
pcmcia_badge4_init(&dev->dev);
#endif
#ifdef CONFIG_SA1100_JORNADA720
pcmcia_jornada720_init(&dev->dev);
#endif
#ifdef CONFIG_ARCH_LUBBOCK
pcmcia_lubbock_init(dev);
#endif
#ifdef CONFIG_ASSABET_NEPONSET
pcmcia_neponset_init(dev);
#endif
return 0;
}
static int __devexit pcmcia_remove(struct sa1111_dev *dev)
{
struct sa1111_pcmcia_socket *next, *s = dev_get_drvdata(&dev->dev);
dev_set_drvdata(&dev->dev, NULL);
for (; next = s->next, s; s = next) {
soc_pcmcia_remove_one(&s->soc);
kfree(s);
}
release_mem_region(dev->res.start, 512);
return 0;
}
static struct sa1111_driver pcmcia_driver = {
.drv = {
.name = "sa1111-pcmcia",
},
.devid = SA1111_DEVID_PCMCIA,
.probe = pcmcia_probe,
.remove = __devexit_p(pcmcia_remove),
};
static int __init sa1111_drv_pcmcia_init(void)
{
return sa1111_driver_register(&pcmcia_driver);
}
static void __exit sa1111_drv_pcmcia_exit(void)
{
sa1111_driver_unregister(&pcmcia_driver);
}
fs_initcall(sa1111_drv_pcmcia_init);
module_exit(sa1111_drv_pcmcia_exit);
MODULE_DESCRIPTION("SA1111 PCMCIA card socket driver");
MODULE_LICENSE("GPL");
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