diff options
Diffstat (limited to 'include/linux/mvf_sema4.h')
| -rw-r--r-- | include/linux/mvf_sema4.h | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/include/linux/mvf_sema4.h b/include/linux/mvf_sema4.h index 898065afb23f..4e94276396de 100644 --- a/include/linux/mvf_sema4.h +++ b/include/linux/mvf_sema4.h @@ -1,15 +1,33 @@ #ifndef __MVF_SEMA4__ #define __MVF_SEMA4__ +#include <linux/sched.h> + +#define MVF_SHMEM_SEMAPHORE_NUMBER (1) +#define MVF_PRINTF_SEMAPHORE_NUMBER (2) +#define MVF_I2C_SEMAPHORE_NUMBER (3) +#define MVF_RESERVED1_SEMAPHORE_NUMBER (4) +#define MVF_RESERVED2_SEMAPHORE_NUMBER (5) + +#ifdef __KERNEL__ + typedef struct mvf_sema4_handle_struct { int gate_num; - int use_interrupts; wait_queue_head_t wait_queue; + // stats + u32 attempts; + u32 interrupts; + u32 failures; + struct timeval request_time; + u64 total_latency_us; + u32 worst_latency_us; } MVF_SEMA4; -int mvf_sema4_assign(int gate_num, bool use_interrupts, MVF_SEMA4** sema4_p); +int mvf_sema4_assign(int gate_num, MVF_SEMA4** sema4_p); int mvf_sema4_deassign(MVF_SEMA4 *sema4); -int mvf_sema4_lock(MVF_SEMA4 *sema4, unsigned int timeout_us); +int mvf_sema4_lock(MVF_SEMA4 *sema4, unsigned int timeout_us, bool use_interrupts); int mvf_sema4_unlock(MVF_SEMA4 *sema4); +int mvf_sema4_test(MVF_SEMA4 *sema4); #endif +#endif |