1 #ifndef __LINUX_HDQ_H__
2 #define __LINUX_HDQ_H__
4 #include <linux/device.h>
6 #define HDQ_SAMPLE_PERIOD_US 10
10 struct hdq_platform_data {
12 * give an opportunity to use us as parent for
13 * devices that depend on us
15 void (*attach_child_devices)(struct device *parent_device);
17 void (*gpio_dir_out)(void);
18 void (*gpio_dir_in)(void);
19 void (*gpio_set)(int);
20 int (*gpio_get)(void);
22 int (*enable_fiq)(void);
23 void (*disable_fiq)(void);
24 void (*kick_fiq)(void);
28 int hdq_read(int address);
29 int hdq_write(int address, u8 data);
30 int hdq_initialized(void);