FreeCalypso > hg > fc-tourmaline
view src/cs/drivers/drv_app/buzzer/buzzer.c @ 291:a72feaed133a
PWT buzzer driver: conditionalize on TARGET_HAS_BUZZER
Here we add a new target config preprocessor symbol TARGET_HAS_BUZZER,
currently defined for c11x and c139; later we also expect to have it
on for FC Venus, and in FC Magnetite we are going to turn it on for
target dsample, just for the sake of completeness and philosophical
correctness.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sat, 26 Mar 2022 19:31:18 +0000 |
parents | edd8482a6576 |
children |
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/* * BUZZER.C * * Buzzer driver * * Target : ARM * * Copyright (c) Texas Instruments 2000 * */ #include "main/sys_types.h" #include "memif/mem.h" #include "armio/armio.h" #include "buzzer.h" #include "timer/timer.h" #include "board.cfg" #include "fc-target.h" /* * Initialize buzzer * */ void BZ_Init(void) { } /* * BZ_Enable / BZ_Disable * * Enable / disable buzzer * * The buzzer uses timer 1 */ void BZ_Enable(void) { *((volatile SYS_UWORD16 *) ARMIO_PWM_CNTL) |= BZ_ON; } void BZ_Disable(void) { *((volatile SYS_UWORD16 *) ARMIO_PWM_CNTL) &= ~BZ_ON; } /* * BZ_Tone * * Changes the timer count to set the tone frequency in Hz * * 58 ticks= 1 ms, which give a frequency of 500 Hz * * */ void BZ_Tone(int f) { #ifdef CONFIG_TARGET_PIRELLI f = 0; /* vibrator instead of buzzer */ #else if (f > 255) { f = 255; } #endif *((volatile SYS_UWORD16 *) ARMIO_LOAD_TIM) = f; } /* * BZ_Volume * * Changes the buzzer volume * */ void BZ_Volume(int v) { // the level range is 0 up to 63 if (v > 63) { v = 63; } *((volatile SYS_UWORD16 *) BZ_LEVEL) = v; } /* * BZ_KeyBeep_ON * * Audio feedback to user after keybeep * */ void BZ_KeyBeep_ON(void) { volatile int i; BZ_Init (); BZ_Volume (255); BZ_Tone (50); BZ_Enable (); for (i = 0; i < 17000; i++) ; BZ_Disable (); } /* * BZ_KeyBeep_OFF * * Audio feedback to user after keybeep * */ void BZ_KeyBeep_OFF(void) { volatile int i; BZ_Init (); BZ_Volume (255); BZ_Tone (100); BZ_Enable (); for (i = 0; i < 17000; i++) ; BZ_Disable (); } /* * LT_Enable / LT_Disable * * Enable / disable LCD lighting * */ void LT_Enable(void) { #if (BOARD == 7 || BOARD == 8 || BOARD == 9) *((volatile SYS_UWORD16 *) ARMIO_PWM_CNTL) |= LT_ON; #endif } void LT_Disable(void) { #if (BOARD == 7 || BOARD == 8 || BOARD == 9) *((volatile SYS_UWORD16 *) ARMIO_PWM_CNTL) &= ~LT_ON; #endif } /* * LT_Level * * Set LCD display level */ void LT_Level(SYS_WORD8 level) { #if (BOARD == 7 || BOARD == 8 || BOARD == 9) if (level > 63) level=63; // the level range is 0 up to 63 *((volatile SYS_UWORD16 *) LT_LEVEL) = level; #endif } /* * LT_Status * * Return lighting status for sleep manager * */ SYS_BOOL LT_Status(void) { #if (BOARD == 7 || BOARD == 8 || BOARD == 9) if (*((volatile SYS_UWORD16 *) ARMIO_PWM_CNTL) & LT_ON) return(1); // the light is on else return(0); #else return(0); #endif }