1 files changed, 86 insertions, 0 deletions
diff --git a/src/app/google_rcu/buzzer_module/buzzer_driver.h b/src/app/google_rcu/buzzer_module/buzzer_driver.h
new file mode 100644
index 0000000..09220f9
--- /dev/null
+++ b/src/app/google_rcu/buzzer_module/buzzer_driver.h
@@ -0,0 +1,86 @@
+
+/*
+ *  Routines to access hardware
+ *
+ *  Copyright (c) 2018 Realtek Semiconductor Corp.
+ *
+ *  This module is a confidential and proprietary property of RealTek and
+ *  possession or use of this module requires written permission of RealTek.
+ */
+#ifndef _BUZZER_DRIVER_H_
+#define _BUZZER_DRIVER_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*============================================================================*
+ *                        Header Files
+ *============================================================================*/
+#include <stdint.h>
+#include <stdbool.h>
+#include <swtimer.h>
+#include <rtl876x.h>
+#include <board.h>
+
+#if SUPPORT_BUZZER_FEATURE
+
+/*============================================================================*
+ *                         Macros
+ *============================================================================*/
+#define PWM_TIMER_NUM           TIM4
+#define PWM_OUT_PIN_PINMUX      TIM_PWM4
+
+/* Config PWM_PERIOD and PWM_DUTY_CYCLE */
+#define PWM_FREQUENCY           1000 //uint:hz
+#define PWM_PERIOD              1000 //uint:us
+#define PWM_DUTY_CYCLE          50      //uint:percent
+#define PWM_HIGH_COUNT          (((PWM_PERIOD)*((PWM_DUTY_CYCLE*40)/100))-1)    //PWM CLOCK = 40000000
+#define PWM_LOW_COUNT           (((PWM_PERIOD)*(((100-PWM_DUTY_CYCLE)*40)/100))-1)
+
+#define BUZZER_PWM_STOP_TIMEOUT 1 /* 1ms */
+
+/*============================================================================*
+ *                         Types
+ *============================================================================*/
+/**
+ * @brief  Buzzer global data struct definition.
+ */
+typedef struct
+{
+    bool is_allowed_to_enter_dlps;  /* to indicate whether to allow to enter dlps or not */
+    bool is_working;                /* to indicate whether buzzer driver is working or not */
+    uint32_t current_peirod_in_us;  /* to indicate the current PWM period in us */
+    uint16_t freq;                  /* to indicate the frequency */
+    uint8_t  duty_cycle;            /* to indicate the duty_cycle */
+} T_BUZZER_LOCAL_DATA;
+
+/*============================================================================*
+*                        Export Global Variables
+*============================================================================*/
+
+
+/*============================================================================*
+ *                         Functions
+ *============================================================================*/
+void buzzer_init_data(void);
+void buzzer_pinmux_config(void);
+void buzzer_deinit_pad_config(void);
+void buzzer_init_pad_config(void);
+bool buzzer_check_dlps_allowed(void);
+void buzzer_start_pwm_output(uint16_t frequency, uint8_t duty_cycle);
+void buzzer_stop_pwm_output(void);
+void buzzer_set_frequency(uint16_t frequency);
+void buzzer_set_duty_cycle(uint8_t duty_cycle);
+uint16_t buzzer_get_frequency(void);
+uint8_t buzzer_get_duty_cycle(void);
+bool buzzer_is_working_check(void);
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+