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#ifndef __DIAG_GPIO_H
#define __DIAG_GPIO_H
#include <linux/interrupt.h>
#include <linux/gpio.h>
#include <asm/mach-bcm47xx/bcm47xx.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0)
#define ssb_bcm47xx bcm47xx_bus.ssb
#endif
static inline u32 __ssb_write32_masked(struct ssb_device *dev, u16 offset,
u32 mask, u32 value)
{
value &= mask;
value |= ssb_read32(dev, offset) & ~mask;
ssb_write32(dev, offset, value);
return value;
}
static void gpio_set_irqenable(int enabled, irqreturn_t (*handler)(int, void *))
{
int irq;
irq = gpio_to_irq(0);
if (irq == -EINVAL) return;
if (enabled) {
if (request_irq(irq, handler, IRQF_SHARED | IRQF_SAMPLE_RANDOM, "gpio", handler))
return;
} else {
free_irq(irq, handler);
}
if (ssb_bcm47xx.chipco.dev)
__ssb_write32_masked(ssb_bcm47xx.chipco.dev, SSB_CHIPCO_IRQMASK, SSB_CHIPCO_IRQ_GPIO, (enabled ? SSB_CHIPCO_IRQ_GPIO : 0));
}
#define EXTIF_ADDR 0x1f000000
#define EXTIF_UART (EXTIF_ADDR + 0x00800000)
#define GPIO_TYPE_NORMAL (0x0 << 24)
#define GPIO_TYPE_EXTIF (0x1 << 24)
#define GPIO_TYPE_MASK (0xf << 24)
static inline void gpio_set_extif(int gpio, int value)
{
volatile u8 *addr = (volatile u8 *) KSEG1ADDR(EXTIF_UART) + (gpio & ~GPIO_TYPE_MASK);
if (value)
*addr = 0xFF;
else
*addr;
}
#endif /* __DIAG_GPIO_H */
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