156 lines
3.6 KiB
C
156 lines
3.6 KiB
C
/*
|
|
* 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 */
|