/*
- * VIPER PCMCIA support
+ * Viper/Zeus PCMCIA support
* Copyright 2004 Arcom Control Systems
*
* Maintained by Marc Zyngier <maz@misterjones.org>
- * <marc.zyngier@altran.com>
*
* Based on:
* iPAQ h2200 PCMCIA support
#include <asm/irq.h>
-#include <mach/viper.h>
-#include <asm/mach-types.h>
+#include <mach/arcom-pcmcia.h>
#include "soc_common.h"
#include "pxa2xx_base.h"
-static struct pcmcia_irqs irqs[] = {
- { 0, gpio_to_irq(VIPER_CF_CD_GPIO), "PCMCIA_CD" }
-};
+static struct platform_device *arcom_pcmcia_dev;
+
+static inline struct arcom_pcmcia_pdata *viper_get_pdata(void)
+{
+ return arcom_pcmcia_dev->dev.platform_data;
+}
static int viper_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
+ struct arcom_pcmcia_pdata *pdata = viper_get_pdata();
unsigned long flags;
- skt->irq = gpio_to_irq(VIPER_CF_RDY_GPIO);
-
- if (gpio_request(VIPER_CF_CD_GPIO, "CF detect"))
- goto err_request_cd;
+ skt->stat[SOC_STAT_CD].gpio = pdata->cd_gpio;
+ skt->stat[SOC_STAT_CD].name = "PCMCIA_CD";
+ skt->stat[SOC_STAT_RDY].gpio = pdata->rdy_gpio;
+ skt->stat[SOC_STAT_RDY].name = "CF ready";
- if (gpio_request(VIPER_CF_RDY_GPIO, "CF ready"))
- goto err_request_rdy;
-
- if (gpio_request(VIPER_CF_POWER_GPIO, "CF power"))
+ if (gpio_request(pdata->pwr_gpio, "CF power"))
goto err_request_pwr;
local_irq_save(flags);
- /* GPIO 82 is the CF power enable line. initially off */
- if (gpio_direction_output(VIPER_CF_POWER_GPIO, 0) ||
- gpio_direction_input(VIPER_CF_CD_GPIO) ||
- gpio_direction_input(VIPER_CF_RDY_GPIO)) {
+ if (gpio_direction_output(pdata->pwr_gpio, 0)) {
local_irq_restore(flags);
goto err_dir;
}
local_irq_restore(flags);
- return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
+ return 0;
err_dir:
- gpio_free(VIPER_CF_POWER_GPIO);
+ gpio_free(pdata->pwr_gpio);
err_request_pwr:
- gpio_free(VIPER_CF_RDY_GPIO);
-err_request_rdy:
- gpio_free(VIPER_CF_CD_GPIO);
-err_request_cd:
- printk(KERN_ERR "viper: Failed to setup PCMCIA GPIOs\n");
+ dev_err(&arcom_pcmcia_dev->dev, "Failed to setup PCMCIA GPIOs\n");
return -1;
}
*/
static void viper_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
- soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
- gpio_free(VIPER_CF_POWER_GPIO);
- gpio_free(VIPER_CF_RDY_GPIO);
- gpio_free(VIPER_CF_CD_GPIO);
+ struct arcom_pcmcia_pdata *pdata = viper_get_pdata();
+
+ gpio_free(pdata->pwr_gpio);
}
static void viper_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
struct pcmcia_state *state)
{
- state->detect = gpio_get_value(VIPER_CF_CD_GPIO) ? 0 : 1;
- state->ready = gpio_get_value(VIPER_CF_RDY_GPIO) ? 1 : 0;
- state->bvd1 = 1;
- state->bvd2 = 1;
state->wrprot = 0;
state->vs_3v = 1; /* Can only apply 3.3V */
state->vs_Xv = 0;
static int viper_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
const socket_state_t *state)
{
+ struct arcom_pcmcia_pdata *pdata = viper_get_pdata();
+
/* Silently ignore Vpp, output enable, speaker enable. */
- viper_cf_rst(state->flags & SS_RESET);
+ pdata->reset(state->flags & SS_RESET);
/* Apply socket voltage */
switch (state->Vcc) {
case 0:
- gpio_set_value(VIPER_CF_POWER_GPIO, 0);
+ gpio_set_value(pdata->pwr_gpio, 0);
break;
case 33:
- gpio_set_value(VIPER_CF_POWER_GPIO, 1);
+ gpio_set_value(pdata->pwr_gpio, 1);
break;
default:
- printk(KERN_ERR "%s: Unsupported Vcc:%d\n",
- __func__, state->Vcc);
+ dev_err(&arcom_pcmcia_dev->dev, "Unsupported Vcc:%d\n", state->Vcc);
return -1;
}
return 0;
}
-static void viper_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
-{
-}
-
-static void viper_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
-{
-}
-
-static struct pcmcia_low_level viper_pcmcia_ops __initdata = {
+static struct pcmcia_low_level viper_pcmcia_ops = {
.owner = THIS_MODULE,
.hw_init = viper_pcmcia_hw_init,
.hw_shutdown = viper_pcmcia_hw_shutdown,
.socket_state = viper_pcmcia_socket_state,
.configure_socket = viper_pcmcia_configure_socket,
- .socket_init = viper_pcmcia_socket_init,
- .socket_suspend = viper_pcmcia_socket_suspend,
.nr = 1,
};
static struct platform_device *viper_pcmcia_device;
-static int __init viper_pcmcia_init(void)
+static int viper_pcmcia_probe(struct platform_device *pdev)
{
int ret;
- if (!machine_is_viper())
- return -ENODEV;
+ /* I can't imagine more than one device, but you never know... */
+ if (arcom_pcmcia_dev)
+ return -EEXIST;
+
+ if (!pdev->dev.platform_data)
+ return -EINVAL;
viper_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
if (!viper_pcmcia_device)
return -ENOMEM;
+ arcom_pcmcia_dev = pdev;
+
+ viper_pcmcia_device->dev.parent = &pdev->dev;
+
ret = platform_device_add_data(viper_pcmcia_device,
&viper_pcmcia_ops,
sizeof(viper_pcmcia_ops));
if (!ret)
ret = platform_device_add(viper_pcmcia_device);
- if (ret)
+ if (ret) {
platform_device_put(viper_pcmcia_device);
+ arcom_pcmcia_dev = NULL;
+ }
return ret;
}
-static void __exit viper_pcmcia_exit(void)
+static int viper_pcmcia_remove(struct platform_device *pdev)
{
platform_device_unregister(viper_pcmcia_device);
+ arcom_pcmcia_dev = NULL;
+ return 0;
+}
+
+static struct platform_device_id viper_pcmcia_id_table[] = {
+ { .name = "viper-pcmcia", },
+ { .name = "zeus-pcmcia", },
+ { },
+};
+
+static struct platform_driver viper_pcmcia_driver = {
+ .probe = viper_pcmcia_probe,
+ .remove = viper_pcmcia_remove,
+ .driver = {
+ .name = "arcom-pcmcia",
+ .owner = THIS_MODULE,
+ },
+ .id_table = viper_pcmcia_id_table,
+};
+
+static int __init viper_pcmcia_init(void)
+{
+ return platform_driver_register(&viper_pcmcia_driver);
+}
+
+static void __exit viper_pcmcia_exit(void)
+{
+ return platform_driver_unregister(&viper_pcmcia_driver);
}
module_init(viper_pcmcia_init);
module_exit(viper_pcmcia_exit);
+MODULE_DEVICE_TABLE(platform, viper_pcmcia_id_table);
MODULE_LICENSE("GPL");
Code Review / linux-2.6.git / blobdiff