519 lines
16 KiB
C
519 lines
16 KiB
C
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/**************************************************************************************************
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Filename: hal_led.c
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Revised: $Date: 2012-02-14 12:43:32 -0800 (Tue, 14 Feb 2012) $
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Revision: $Revision: 29281 $
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Description: This file contains the interface to the HAL LED Service.
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Copyright 2006-2012 Texas Instruments Incorporated. All rights reserved.
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IMPORTANT: Your use of this Software is limited to those specific rights
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granted under the terms of a software license agreement between the user
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who downloaded the software, his/her employer (which must be your employer)
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and Texas Instruments Incorporated (the "License"). You may not use this
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Software unless you agree to abide by the terms of the License. The License
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limits your use, and you acknowledge, that the Software may not be modified,
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copied or distributed unless embedded on a Texas Instruments microcontroller
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or used solely and exclusively in conjunction with a Texas Instruments radio
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frequency transceiver, which is integrated into your product. Other than for
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the foregoing purpose, you may not use, reproduce, copy, prepare derivative
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works of, modify, distribute, perform, display or sell this Software and/or
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its documentation for any purpose.
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YOU FURTHER ACKNOWLEDGE AND AGREE THAT THE SOFTWARE AND DOCUMENTATION ARE
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PROVIDED <EFBFBD>AS IS<EFBFBD> WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED,
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INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, TITLE,
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NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL
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TEXAS INSTRUMENTS OR ITS LICENSORS BE LIABLE OR OBLIGATED UNDER CONTRACT,
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NEGLIGENCE, STRICT LIABILITY, CONTRIBUTION, BREACH OF WARRANTY, OR OTHER
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LEGAL EQUITABLE THEORY ANY DIRECT OR INDIRECT DAMAGES OR EXPENSES
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INCLUDING BUT NOT LIMITED TO ANY INCIDENTAL, SPECIAL, INDIRECT, PUNITIVE
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OR CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA, COST OF PROCUREMENT
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OF SUBSTITUTE GOODS, TECHNOLOGY, SERVICES, OR ANY CLAIMS BY THIRD PARTIES
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(INCLUDING BUT NOT LIMITED TO ANY DEFENSE THEREOF), OR OTHER SIMILAR COSTS.
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Should you have any questions regarding your right to use this Software,
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contact Texas Instruments Incorporated at www.TI.com.
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**************************************************************************************************/
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/***************************************************************************************************
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* INCLUDES
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***************************************************************************************************/
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#include "hal_mcu.h"
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#include "hal_defs.h"
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#include "hal_types.h"
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#include "hal_drivers.h"
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#include "hal_led.h"
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#include "osal.h"
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#include "hal_board.h"
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/***************************************************************************************************
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* CONSTANTS
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***************************************************************************************************/
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/***************************************************************************************************
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* MACROS
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***************************************************************************************************/
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/***************************************************************************************************
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* TYPEDEFS
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***************************************************************************************************/
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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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#if HAL_LED == TRUE
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static uint8 HalSleepLedState; // 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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#endif
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#ifdef BLINK_LEDS
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static HalLedStatus_t HalLedStatusControl;
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#endif
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/***************************************************************************************************
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* LOCAL FUNCTION
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***************************************************************************************************/
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#if (HAL_LED == TRUE)
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void HalLedUpdate (void);
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void HalLedOnOff (uint8 leds, uint8 mode);
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#endif /* HAL_LED */
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/***************************************************************************************************
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* FUNCTIONS - API
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***************************************************************************************************/
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/***************************************************************************************************
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* @fn HalLedInit
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*
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* @brief Initialize LED Service
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*
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* @param init - pointer to void that contains the initialized value
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*
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* @return None
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***************************************************************************************************/
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void HalLedInit (void)
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{
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#if (HAL_LED == TRUE)
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/* Initialize all LEDs to OFF */
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HalLedSet (HAL_LED_ALL, HAL_LED_MODE_OFF);
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#endif /* HAL_LED */
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#ifdef BLINK_LEDS
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/* Initialize sleepActive to FALSE */
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HalLedStatusControl.sleepActive = FALSE;
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#endif
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}
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/***************************************************************************************************
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* @fn HalLedSet
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*
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* @brief Tun ON/OFF/TOGGLE given LEDs
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*
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* @param 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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* @return None
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***************************************************************************************************/
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uint8 HalLedSet (uint8 leds, uint8 mode)
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{
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#if (defined (BLINK_LEDS)) && (HAL_LED == TRUE)
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uint8 led;
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HalLedControl_t *sts;
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switch (mode)
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{
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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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{
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if (leds & led)
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{
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if (mode != HAL_LED_MODE_TOGGLE)
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{
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sts->mode = mode; /* ON or OFF */
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}
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else
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{
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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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#elif (HAL_LED == TRUE)
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LedOnOff(leds, mode);
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#else
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// HAL LED is disabled, suppress unused argument warnings
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(void) leds;
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(void) mode;
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#endif /* BLINK_LEDS && HAL_LED */
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return ( HalLedState );
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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
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* 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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#if (defined (BLINK_LEDS)) && (HAL_LED == TRUE)
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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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{
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if (percent < 100)
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{
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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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{
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if (leds & led)
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{
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/* Store the current state of the led before going to blinking if not already blinking */
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if(sts->mode < HAL_LED_MODE_BLINK )
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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 = osal_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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// Cancel any overlapping timer for blink events
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osal_stop_timerEx(Hal_TaskID, HAL_LED_BLINK_EVENT);
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osal_set_event (Hal_TaskID, HAL_LED_BLINK_EVENT);
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}
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else
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{
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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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{
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HalLedSet (leds, HAL_LED_MODE_OFF); /* No on time, turn off */
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}
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#elif (HAL_LED == TRUE)
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percent = (leds & HalLedState) ? HAL_LED_MODE_OFF : HAL_LED_MODE_ON;
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HalLedOnOff (leds, percent); /* Toggle */
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#else
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// HAL LED is disabled, suppress unused argument warnings
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(void) leds;
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(void) numBlinks;
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(void) percent;
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(void) period;
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#endif /* BLINK_LEDS && HAL_LED */
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}
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#if (HAL_LED == TRUE)
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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;
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uint8 pct;
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uint8 leds;
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HalLedControl_t *sts;
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uint32 time;
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uint16 next;
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uint16 wait;
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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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{
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while (leds)
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{
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if (leds & led)
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{
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if (sts->mode & HAL_LED_MODE_BLINK)
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{
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time = osal_GetSystemClock();
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if (time >= sts->next)
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{
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if (sts->mode & HAL_LED_MODE_ON)
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{
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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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{
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sts->todo--; /* Not continuous, reduce count */
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}
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}
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else if ( (!sts->todo) && !(sts->mode & HAL_LED_MODE_FLASH) )
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{
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sts->mode ^= HAL_LED_MODE_BLINK; /* No more blinks */
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}
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else
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{
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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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{
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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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{
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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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{
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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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{
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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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{
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osal_start_timerEx(Hal_TaskID, HAL_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
|
|||
|
|
*
|
|||
|
|
* @param leds - LED bit mask
|
|||
|
|
* mode - LED_ON,LED_OFF,
|
|||
|
|
*
|
|||
|
|
* @return none
|
|||
|
|
***************************************************************************************************/
|
|||
|
|
void HalLedOnOff (uint8 leds, uint8 mode)
|
|||
|
|
{
|
|||
|
|
if (leds & HAL_LED_1)
|
|||
|
|
{
|
|||
|
|
if (mode == HAL_LED_MODE_ON)
|
|||
|
|
{
|
|||
|
|
HAL_TURN_ON_LED1();
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
HAL_TURN_OFF_LED1();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (leds & HAL_LED_2)
|
|||
|
|
{
|
|||
|
|
if (mode == HAL_LED_MODE_ON)
|
|||
|
|
{
|
|||
|
|
HAL_TURN_ON_LED2();
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
HAL_TURN_OFF_LED2();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (leds & HAL_LED_3)
|
|||
|
|
{
|
|||
|
|
if (mode == HAL_LED_MODE_ON)
|
|||
|
|
{
|
|||
|
|
HAL_TURN_ON_LED3();
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
HAL_TURN_OFF_LED3();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (leds & HAL_LED_4)
|
|||
|
|
{
|
|||
|
|
if (mode == HAL_LED_MODE_ON)
|
|||
|
|
{
|
|||
|
|
HAL_TURN_ON_LED4();
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
HAL_TURN_OFF_LED4();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/* Remember current state */
|
|||
|
|
if (mode)
|
|||
|
|
{
|
|||
|
|
HalLedState |= leds;
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
HalLedState &= (leds ^ 0xFF);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
#endif /* HAL_LED */
|
|||
|
|
|
|||
|
|
/***************************************************************************************************
|
|||
|
|
* @fn HalGetLedState
|
|||
|
|
*
|
|||
|
|
* @brief Dim LED2 - Dim (set level) of LED2
|
|||
|
|
*
|
|||
|
|
* @param none
|
|||
|
|
*
|
|||
|
|
* @return led state
|
|||
|
|
***************************************************************************************************/
|
|||
|
|
uint8 HalLedGetState ()
|
|||
|
|
{
|
|||
|
|
#if (HAL_LED == TRUE)
|
|||
|
|
return HalLedState;
|
|||
|
|
#else
|
|||
|
|
return 0;
|
|||
|
|
#endif
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/***************************************************************************************************
|
|||
|
|
* @fn HalLedEnterSleep
|
|||
|
|
*
|
|||
|
|
* @brief Store current LEDs state before sleep
|
|||
|
|
*
|
|||
|
|
* @param none
|
|||
|
|
*
|
|||
|
|
* @return none
|
|||
|
|
***************************************************************************************************/
|
|||
|
|
void HalLedEnterSleep( void )
|
|||
|
|
{
|
|||
|
|
#ifdef BLINK_LEDS
|
|||
|
|
/* Sleep ON */
|
|||
|
|
HalLedStatusControl.sleepActive = TRUE;
|
|||
|
|
#endif /* BLINK_LEDS */
|
|||
|
|
|
|||
|
|
#if (HAL_LED == TRUE)
|
|||
|
|
/* Save the state of each led */
|
|||
|
|
HalSleepLedState = 0;
|
|||
|
|
HalSleepLedState |= HAL_STATE_LED1();
|
|||
|
|
HalSleepLedState |= HAL_STATE_LED2() << 1;
|
|||
|
|
HalSleepLedState |= HAL_STATE_LED3() << 2;
|
|||
|
|
HalSleepLedState |= HAL_STATE_LED4() << 3;
|
|||
|
|
|
|||
|
|
/* TURN OFF all LEDs to save power */
|
|||
|
|
HalLedOnOff (HAL_LED_ALL, HAL_LED_MODE_OFF);
|
|||
|
|
#endif /* HAL_LED */
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/***************************************************************************************************
|
|||
|
|
* @fn HalLedExitSleep
|
|||
|
|
*
|
|||
|
|
* @brief Restore current LEDs state after sleep
|
|||
|
|
*
|
|||
|
|
* @param none
|
|||
|
|
*
|
|||
|
|
* @return none
|
|||
|
|
***************************************************************************************************/
|
|||
|
|
void HalLedExitSleep( void )
|
|||
|
|
{
|
|||
|
|
#if (HAL_LED == TRUE)
|
|||
|
|
/* Load back the saved state */
|
|||
|
|
HalLedOnOff(HalSleepLedState, HAL_LED_MODE_ON);
|
|||
|
|
|
|||
|
|
/* Restart - This takes care BLINKING LEDS */
|
|||
|
|
HalLedUpdate();
|
|||
|
|
#endif /* HAL_LED */
|
|||
|
|
|
|||
|
|
#ifdef BLINK_LEDS
|
|||
|
|
/* Sleep OFF */
|
|||
|
|
HalLedStatusControl.sleepActive = FALSE;
|
|||
|
|
#endif /* BLINK_LEDS */
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/***************************************************************************************************
|
|||
|
|
***************************************************************************************************/
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|