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#ifndef _LINUX_FIQ_IPC_H
#define _LINUX_FIQ_IPC_H
/*
* this defines the struct which is used to communicate between the FIQ
* world and the normal linux kernel world. One of these structs is
* statically defined for you in the monolithic kernel so the FIQ ISR code
* can safely touch it any any time.
*
* You also want to include this file in your kernel module that wants to
* communicate with your FIQ code. Add any kinds of vars that are used by
* the FIQ ISR and the module in here.
*
* To get you started there is just an int that is incremented every FIQ
* you can remove this when you are ready to customize, but it is useful
* for testing
*/
#include <asm/arch/pwm.h>
#include <asm/plat-s3c/regs-timer.h>
struct fiq_ipc {
/* vibrator */
unsigned long vib_gpio_pin; /* which pin to meddle with */
u8 vib_pwm; /* 0 = OFF -- will ensure GPIO deasserted and stop FIQ */
u8 vib_pwm_latched;
};
/* actual definition lives in arch/arm/mach-s3c2440/fiq_c_isr.c */
extern struct fiq_ipc fiq_ipc;
extern unsigned long _fiq_count_fiqs;
extern void fiq_kick(void); /* provoke a FIQ "immediately" */
#endif /* _LINUX_FIQ_IPC_H */
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