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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
*/
#ifndef __BCM47XX_GPIO_H
#define __BCM47XX_GPIO_H
#include <linux/ssb/ssb_embedded.h>
#include <linux/bcma/bcma.h>
#include <asm/mach-bcm47xx/bcm47xx.h>
#define BCM47XX_EXTIF_GPIO_LINES 5
#define BCM47XX_CHIPCO_GPIO_LINES 16
extern int gpio_request(unsigned gpio, const char *label);
extern void gpio_free(unsigned gpio);
extern int gpio_to_irq(unsigned gpio);
static inline int gpio_get_value(unsigned gpio)
{
switch (bcm47xx_bus_type) {
#ifdef CONFIG_BCM47XX_SSB
case BCM47XX_BUS_TYPE_SSB:
return ssb_gpio_in(&bcm47xx_bus.ssb, 1 << gpio);
#endif
#ifdef CONFIG_BCM47XX_BCMA
case BCM47XX_BUS_TYPE_BCMA:
return bcma_chipco_gpio_in(&bcm47xx_bus.bcma.bus.drv_cc,
1 << gpio);
#endif
}
return -EINVAL;
}
#define gpio_get_value_cansleep gpio_get_value
static inline void gpio_set_value(unsigned gpio, int value)
{
switch (bcm47xx_bus_type) {
#ifdef CONFIG_BCM47XX_SSB
case BCM47XX_BUS_TYPE_SSB:
ssb_gpio_out(&bcm47xx_bus.ssb, 1 << gpio,
value ? 1 << gpio : 0);
return;
#endif
#ifdef CONFIG_BCM47XX_BCMA
case BCM47XX_BUS_TYPE_BCMA:
bcma_chipco_gpio_out(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
value ? 1 << gpio : 0);
return;
#endif
}
}
#define gpio_set_value_cansleep gpio_set_value
static inline int gpio_cansleep(unsigned gpio)
{
return 0;
}
static inline int gpio_is_valid(unsigned gpio)
{
return gpio < (BCM47XX_EXTIF_GPIO_LINES + BCM47XX_CHIPCO_GPIO_LINES);
}
static inline int gpio_direction_input(unsigned gpio)
{
switch (bcm47xx_bus_type) {
#ifdef CONFIG_BCM47XX_SSB
case BCM47XX_BUS_TYPE_SSB:
ssb_gpio_outen(&bcm47xx_bus.ssb, 1 << gpio, 0);
return 0;
#endif
#ifdef CONFIG_BCM47XX_BCMA
case BCM47XX_BUS_TYPE_BCMA:
bcma_chipco_gpio_outen(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
0);
return 0;
#endif
}
return -EINVAL;
}
static inline int gpio_direction_output(unsigned gpio, int value)
{
switch (bcm47xx_bus_type) {
#ifdef CONFIG_BCM47XX_SSB
case BCM47XX_BUS_TYPE_SSB:
/* first set the gpio out value */
ssb_gpio_out(&bcm47xx_bus.ssb, 1 << gpio,
value ? 1 << gpio : 0);
/* then set the gpio mode */
ssb_gpio_outen(&bcm47xx_bus.ssb, 1 << gpio, 1 << gpio);
return 0;
#endif
#ifdef CONFIG_BCM47XX_BCMA
case BCM47XX_BUS_TYPE_BCMA:
/* first set the gpio out value */
bcma_chipco_gpio_out(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
value ? 1 << gpio : 0);
/* then set the gpio mode */
bcma_chipco_gpio_outen(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
1 << gpio);
return 0;
#endif
}
return -EINVAL;
}
static inline int gpio_intmask(unsigned gpio, int value)
{
switch (bcm47xx_bus_type) {
#ifdef CONFIG_BCM47XX_SSB
case BCM47XX_BUS_TYPE_SSB:
ssb_gpio_intmask(&bcm47xx_bus.ssb, 1 << gpio,
value ? 1 << gpio : 0);
return 0;
#endif
#ifdef CONFIG_BCM47XX_BCMA
case BCM47XX_BUS_TYPE_BCMA:
bcma_chipco_gpio_intmask(&bcm47xx_bus.bcma.bus.drv_cc,
1 << gpio, value ? 1 << gpio : 0);
return 0;
#endif
}
return -EINVAL;
}
static inline int gpio_polarity(unsigned gpio, int value)
{
switch (bcm47xx_bus_type) {
#ifdef CONFIG_BCM47XX_SSB
case BCM47XX_BUS_TYPE_SSB:
ssb_gpio_polarity(&bcm47xx_bus.ssb, 1 << gpio,
value ? 1 << gpio : 0);
return 0;
#endif
#ifdef CONFIG_BCM47XX_BCMA
case BCM47XX_BUS_TYPE_BCMA:
bcma_chipco_gpio_polarity(&bcm47xx_bus.bcma.bus.drv_cc,
1 << gpio, value ? 1 << gpio : 0);
return 0;
#endif
}
return -EINVAL;
}
#endif /* __BCM47XX_GPIO_H */
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