317 lines
9.3 KiB
C
317 lines
9.3 KiB
C
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/********************************** (C) COPYRIGHT *******************************
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* File Name : LED.c
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* Author : WCH
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* Version : V1.0
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* Date : 2014/05/12
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* Description :
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*******************************************************************************/
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/******************************************************************************/
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/* ͷ<>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD> */
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#include "CH57x_common.h"
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#include "HAL.h"
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/* LED control structure */
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typedef struct {
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uint8 mode; /* Operation mode */
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uint8 todo; /* Blink cycles left */
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uint8 onPct; /* On cycle percentage */
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uint16 time; /* On/off cycle time (msec) */
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uint32 next; /* Time for next change */
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} HalLedControl_t;
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typedef struct
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{
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HalLedControl_t HalLedControlTable[HAL_LED_DEFAULT_MAX_LEDS];
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uint8 sleepActive;
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} HalLedStatus_t;
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/***************************************************************************************************
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* GLOBAL VARIABLES
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***************************************************************************************************/
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static uint8 HalLedState; // LED state at last set/clr/blink update
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static uint8 preBlinkState; // Original State before going to blink mode
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// bit 0, 1, 2, 3 represent led 0, 1, 2, 3
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static HalLedStatus_t HalLedStatusControl;
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/***************************************************************************************************
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* LOCAL FUNCTION
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***************************************************************************************************/
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void HalLedOnOff (uint8 leds, uint8 mode);
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/***************************************************************************************************
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* FUNCTIONS - API
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***************************************************************************************************/
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/***************************************************************************************************
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* @fn : HAL_LedInit
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*
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* @brief : Initialize LED Service
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*
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* @param : None
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*
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* @return : None
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*/
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void HAL_LedInit (void)
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{
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/* Initialize all LEDs to OFF */
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LED1_DDR;
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HalLedSet(HAL_LED_ALL, HAL_LED_MODE_OFF);
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// just test
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HalLedBlink( HAL_LED_1, 10, 30 , 4000);
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/* Initialize sleepActive to FALSE */
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HalLedStatusControl.sleepActive = FALSE;
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}
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/***************************************************************************************************
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* @fn <EFBFBD><EFBFBD>HalLedSet
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*
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* @brief <EFBFBD><EFBFBD>Tun ON/OFF/TOGGLE given LEDs
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*
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* @param <EFBFBD><EFBFBD>led - bit mask value of leds to be turned ON/OFF/TOGGLE
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* mode - BLINK, FLASH, TOGGLE, ON, OFF
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*
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* @return <EFBFBD><EFBFBD>None
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*/
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uint8 HalLedSet (uint8 leds, uint8 mode)
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{
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uint8 led;
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HalLedControl_t *sts;
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switch (mode){
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case HAL_LED_MODE_BLINK:
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/* Default blink, 1 time, D% duty cycle */
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HalLedBlink (leds, 1, HAL_LED_DEFAULT_DUTY_CYCLE, HAL_LED_DEFAULT_FLASH_TIME);
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break;
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case HAL_LED_MODE_FLASH:
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/* Default flash, N times, D% duty cycle */
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HalLedBlink (leds, HAL_LED_DEFAULT_FLASH_COUNT, HAL_LED_DEFAULT_DUTY_CYCLE, HAL_LED_DEFAULT_FLASH_TIME);
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break;
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case HAL_LED_MODE_ON:
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case HAL_LED_MODE_OFF:
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case HAL_LED_MODE_TOGGLE:
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led = HAL_LED_1;
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leds &= HAL_LED_ALL;
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sts = HalLedStatusControl.HalLedControlTable;
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while (leds){
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if (leds & led){
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if (mode != HAL_LED_MODE_TOGGLE){
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sts->mode = mode; /* ON or OFF */
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}
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else{
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sts->mode ^= HAL_LED_MODE_ON; /* Toggle */
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}
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HalLedOnOff (led, sts->mode);
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leds ^= led;
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}
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led <<= 1;
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sts++;
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}
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break;
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default:
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break;
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}
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return ( NULL );
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}
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/***************************************************************************************************
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* @fn : HalLedBlink
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*
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* @brief : Blink the leds
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*
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* @param : leds - bit mask value of leds to be blinked
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* numBlinks - number of blinks
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* percent - the percentage in each period where the led will be on
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* period - length of each cycle in milliseconds
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*
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* @return : None
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*/
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void HalLedBlink (uint8 leds, uint8 numBlinks, uint8 percent, uint16 period)
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{
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uint8 led;
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HalLedControl_t *sts;
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if (leds && percent && period){
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if (percent < 100){
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led = HAL_LED_1;
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leds &= HAL_LED_ALL;
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sts = HalLedStatusControl.HalLedControlTable;
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while (leds){
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if (leds & led){
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/* Store the current state of the led before going to blinking */
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preBlinkState |= (led & HalLedState);
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sts->mode = HAL_LED_MODE_OFF; /* Stop previous blink */
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sts->time = period; /* Time for one on/off cycle */
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sts->onPct = percent; /* % of cycle LED is on */
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sts->todo = numBlinks; /* Number of blink cycles */
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if (!numBlinks) sts->mode |= HAL_LED_MODE_FLASH; /* Continuous */
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sts->next = TMOS_GetSystemClock(); /* Start now */
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sts->mode |= HAL_LED_MODE_BLINK; /* Enable blinking */
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leds ^= led;
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}
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led <<= 1;
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sts++;
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}
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tmos_start_task( halTaskID, LED_BLINK_EVENT, NULL);
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}
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else{
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HalLedSet (leds, HAL_LED_MODE_ON); /* >= 100%, turn on */
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}
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}
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else{
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HalLedSet (leds, HAL_LED_MODE_OFF); /* No on time, turn off */
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}
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}
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/***************************************************************************************************
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* @fn : HalLedUpdate
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*
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* @brief : Update leds to work with blink
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*
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* @param : none
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*
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* @return : none
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*/
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void HalLedUpdate (void)
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{
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uint8 led,pct,leds;
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uint16 next,wait;
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uint32 time;
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HalLedControl_t *sts;
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next = 0;
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led = HAL_LED_1;
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leds = HAL_LED_ALL;
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sts = HalLedStatusControl.HalLedControlTable;
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/* Check if sleep is active or not */
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if (!HalLedStatusControl.sleepActive){
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while (leds){
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if (leds & led){
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if(sts->mode & HAL_LED_MODE_BLINK){
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time = TMOS_GetSystemClock();
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if (time >= sts->next){
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if (sts->mode & HAL_LED_MODE_ON){
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pct = 100 - sts->onPct; /* Percentage of cycle for off */
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sts->mode &= ~HAL_LED_MODE_ON; /* Say it's not on */
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HalLedOnOff (led, HAL_LED_MODE_OFF); /* Turn it off */
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if (!(sts->mode & HAL_LED_MODE_FLASH)){
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if( sts->todo != 0xff ) sts->todo--; /* Not continuous, reduce count */
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if (!sts->todo){
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sts->mode ^= HAL_LED_MODE_BLINK; /* No more blinks */
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}
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}
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}
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else{
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pct = sts->onPct; /* Percentage of cycle for on */
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sts->mode |= HAL_LED_MODE_ON; /* Say it's on */
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HalLedOnOff(led, HAL_LED_MODE_ON); /* Turn it on */
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}
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if (sts->mode & HAL_LED_MODE_BLINK){
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wait = (((uint32)pct * (uint32)sts->time) / 100);
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sts->next = time + wait;
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}
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else{
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/* no more blink, no more wait */
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wait = 0;
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/* After blinking, set the LED back to the state before it blinks */
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HalLedSet (led, ((preBlinkState & led)!=0)?HAL_LED_MODE_ON:HAL_LED_MODE_OFF);
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/* Clear the saved bit */
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preBlinkState &= (led ^ 0xFF);
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}
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}
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else{
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wait = sts->next - time; /* Time left */
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}
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if (!next || ( wait && (wait < next) )){
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next = wait;
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}
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}
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leds ^= led;
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}
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led <<= 1;
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sts++;
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}
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if (next){
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tmos_start_task( halTaskID, LED_BLINK_EVENT, next); /* Schedule event */
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}
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}
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}
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/***************************************************************************************************
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* @fn : HalLedOnOff
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*
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* @brief : Turns specified LED ON or OFF
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*
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* @param : leds - LED bit mask
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* mode - LED_ON,LED_OFF,
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*
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* @return : none
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*/
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void HalLedOnOff (uint8 leds, uint8 mode)
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{
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if (leds & HAL_LED_1){
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if (mode == HAL_LED_MODE_ON){
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HAL_TURN_ON_LED1();
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}
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else{
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HAL_TURN_OFF_LED1();
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}
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}
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if (leds & HAL_LED_2){
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if (mode == HAL_LED_MODE_ON){
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HAL_TURN_ON_LED2();
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}
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else{
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HAL_TURN_OFF_LED2();
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}
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}
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if (leds & HAL_LED_3){
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if (mode == HAL_LED_MODE_ON){
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HAL_TURN_ON_LED3();
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}
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else{
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HAL_TURN_OFF_LED3();
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}
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}
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if (leds & HAL_LED_4){
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if (mode == HAL_LED_MODE_ON){
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HAL_TURN_ON_LED4();
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}
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else{
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HAL_TURN_OFF_LED4();
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}
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}
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/* Remember current state */
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if (mode){
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HalLedState |= leds;
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}
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else{
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HalLedState &= (leds ^ 0xFF);
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}
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}
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/***************************************************************************************************
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* @fn HalGetLedState
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*
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* @brief Dim LED2 - Dim (set level) of LED2
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*
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* @param none
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*
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* @return led state
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***************************************************************************************************/
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uint8 HalLedGetState ()
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{
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return HalLedState;
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}
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/******************************** endfile @ led ******************************/
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