diff options
Diffstat (limited to 'driver/fingerprint/fpc/bep/fpc_timebase.h')
-rw-r--r-- | driver/fingerprint/fpc/bep/fpc_timebase.h | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/driver/fingerprint/fpc/bep/fpc_timebase.h b/driver/fingerprint/fpc/bep/fpc_timebase.h deleted file mode 100644 index 388d13293e..0000000000 --- a/driver/fingerprint/fpc/bep/fpc_timebase.h +++ /dev/null @@ -1,48 +0,0 @@ -/* Copyright 2019 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#ifndef __CROS_EC_FPC_TIMEBASE_H -#define __CROS_EC_FPC_TIMEBASE_H - -/** - * @file fpc_timebase.h - * @brief Timebase based on a system tick. - * - * Supplies tick counter and wait operation(s). - */ - -#include <stdint.h> - -#include "common.h" - -/** - * @brief Reads the system tick counter. - * - * @details To handle tick counter wrap around when checking for timeout, make - * sure to do the calculation in the following manner: - * "if ((current_tick - old_tick) > timeout) {" - * Example: current time (uint32_t) = 10 ticks - * old time (uint32_t) = 30 ticks before overflow of uint32_t - * current_time - old_time = 10 - (2**32 - 30) -> wraps around to 40 - * - * @return Tick count since fpc_timebase_init() call. [ms] - */ -uint32_t __unused fpc_timebase_get_tick(void); - -/** - * @brief Busy wait. - * - * @param[in] ms Time to wait [ms]. - * 0 => return immediately - * 1 => wait at least 1ms etc. - */ -void __unused fpc_timebase_busy_wait(uint32_t ms); - -/** - * @brief Initializes timebase. Starts system tick counter. - */ -void __unused fpc_timebase_init(void); - -#endif /* __CROS_EC_FPC_TIMEBASE_H */ |