| /* SPDX-License-Identifier: BSD-3-Clause */ |
| |
| #ifndef LIBPAYLOAD_DELAY_H |
| #define LIBPAYLOAD_DELAY_H |
| |
| #include <stdint.h> |
| |
| #define NSECS_PER_SEC 1000000000 |
| #define USECS_PER_SEC 1000000 |
| #define MSECS_PER_SEC 1000 |
| #define NSECS_PER_MSEC (NSECS_PER_SEC / MSECS_PER_SEC) |
| #define NSECS_PER_USEC (NSECS_PER_SEC / USECS_PER_SEC) |
| #define USECS_PER_MSEC (USECS_PER_SEC / MSECS_PER_SEC) |
| |
| unsigned int get_cpu_speed(void); |
| |
| void arch_ndelay(uint64_t n); |
| |
| /** |
| * Delay for a specified number of nanoseconds. |
| * |
| * @param ns Number of nanoseconds to delay for. |
| */ |
| static inline void ndelay(unsigned int ns) |
| { |
| arch_ndelay((uint64_t)ns); |
| } |
| |
| /** |
| * Delay for a specified number of microseconds. |
| * |
| * @param us Number of microseconds to delay for. |
| */ |
| static inline void udelay(unsigned int us) |
| { |
| arch_ndelay((uint64_t)us * NSECS_PER_USEC); |
| } |
| |
| /** |
| * Delay for a specified number of milliseconds. |
| * |
| * @param ms Number of milliseconds to delay for. |
| */ |
| static inline void mdelay(unsigned int ms) |
| { |
| arch_ndelay((uint64_t)ms * NSECS_PER_MSEC); |
| } |
| |
| /** |
| * Delay for a specified number of seconds. |
| * |
| * @param s Number of seconds to delay for. |
| */ |
| static inline void delay(unsigned int s) |
| { |
| arch_ndelay((uint64_t)s * NSECS_PER_SEC); |
| } |
| |
| #endif /* LIBPAYLOAD_DELAY_H */ |