| 1 | #ifndef __LINUX_HDQ_H__ |
| 2 | #define __LINUX_HDQ_H__ |
| 3 | |
| 4 | #include <linux/device.h> |
| 5 | |
| 6 | #define HDQ_SAMPLE_PERIOD_US 10 |
| 7 | |
| 8 | /* platform data */ |
| 9 | |
| 10 | struct hdq_platform_data { |
| 11 | /* |
| 12 | * give an opportunity to use us as parent for |
| 13 | * devices that depend on us |
| 14 | */ |
| 15 | void (*attach_child_devices)(struct device *parent_device); |
| 16 | |
| 17 | void (*gpio_dir_out)(void); |
| 18 | void (*gpio_dir_in)(void); |
| 19 | void (*gpio_set)(int); |
| 20 | int (*gpio_get)(void); |
| 21 | |
| 22 | int (*enable_fiq)(void); |
| 23 | void (*disable_fiq)(void); |
| 24 | void (*kick_fiq)(void); |
| 25 | |
| 26 | }; |
| 27 | |
| 28 | int hdq_read(int address); |
| 29 | int hdq_write(int address, u8 data); |
| 30 | int hdq_initialized(void); |
| 31 | |
| 32 | #endif |
| 33 | |
