pca9532.h

LPC1788的USBHOST的FATFS移植

/**********************************************************************
* $Id$		pca9532.h			2011-06-02
*//**
* @file		pca9532.h
* @brief	Contains all macro definitions and function prototypes
*			support for external PCA9532 IC to drive 16 LEDs
* @version	1.0
* @date		02. June. 2011
* @author	NXP MCU SW Application Team
* 
* Copyright(C) 2011, NXP Semiconductor
* All rights reserved.
*
***********************************************************************
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* products. This software is supplied "AS IS" without any warranties.
* NXP Semiconductors assumes no responsibility or liability for the
* use of the software, conveys no license or title under any patent,
* copyright, or mask work right to the product. NXP Semiconductors
* reserves the right to make changes in the software without
* notification. NXP Semiconductors also make no representation or
* warranty that such application will be suitable for the specified
* use without further testing or modification.
**********************************************************************/



/* Peripheral group ----------------------------------------------------------- */
/** @defgroup  I2C_Led_Dimmer_PCA9532	I2C Led Dimmer PCA9532
 * @ingroup LPC177x_8xCMSIS_Board_Support
 * @{
 */

#ifndef __PCA9532_H
#define __PCA9532_H


#include "lpc_types.h"
#include "lpc177x_8x_i2c.h"


#define PCA9532_I2CADDR		(0xC0)

#define BYTE_BITMASK			(0xFF)

#define PCA9532_RETFUNC_OK					(0)
#define PCA9532_RETFUNC_NOT_INITIALIZED		(-1)
#define PCA9532_RETFUNC_FAILED_OP			(-2)


#define PERCENT_FACTOR			(100)

#define PCA9532_LED_LEVEL_DEFAULT			(PCA9532_LED_LEVEL_OFF)
#define PCA9532_LED_LEVEL_MASK			(0x03)
#define PCA9532_LED_LEVEL_NUM_BITS		(2)
#define PCA9532_PRESCALER_FACTOR			(152)
#define PCA9532_PWM_FACTOR				(256)


#define NUMBER_OF_ONCHIP_LEDS			(16)

typedef enum pca9532_Calculating_Time_Unit_en
{
	PCA9532_CALCULATING_TIME_IN_SECOND = 0,
	PCA9532_CALCULATING_TIME_IN_HERTZ,
	PCA9532_CALCULATING_TIME_MAX_UNITS
} pca9532_Calculating_Time_Unit_en_t;

typedef enum pca9532_Led_Settings_en
{
	PCA9532_LED_LEVEL_OFF = 0,
	PCA9532_LED_LEVEL_ON,
	PCA9532_LED_LEVEL_PWM0,
	PCA9532_LED_LEVEL_PWM1,
	PCA9532_LED_MAX_LEVEL
} pca9532_Led_Settings_en_t;


/** \brief  Structure type to configure the operation for the LEDs connecting to PCA9532 chip.
 */

typedef struct pca9532_Configure_st
{
	/**The frequency (in seconds) that the LED will be blinking with, is to calculated for PSC0 */
	uint32_t led_blinking_freq_0;

	/**The unit of frequency of the led_blinking_freq_0 value. It may be second(s) or hert(s)*/
	pca9532_Calculating_Time_Unit_en_t led_freq0_unit;

	/**The frequency (in seconds) that the LED will be blinking with, is to calculated for PSC1 */
	uint32_t led_blinking_freq_1;

	/**The unit of frequency of the led_blinking_freq_1 value. It may be second(s) or hert(s) */
	pca9532_Calculating_Time_Unit_en_t led_freq1_unit;

	/**Set the luminosity of the light for the LEDs if it's ON. This value will be calculated for PWM0 register */
	uint32_t duty_cycle_0;

	/**Set the luminosity of the light for the LEDs if it's ON. This value will be calculated for PWM1 register */
	uint32_t duty_cycle_1;

	/** Control LED0 by 2 bits */
	pca9532_Led_Settings_en_t  led_settings[NUMBER_OF_ONCHIP_LEDS];
} pca9532_Configure_st_t;


void Pca9532_Init(uint32_t i2cClockFreq);
void Pca9532_DeInit(void);
int Pca9532_LedOutputControl(pca9532_Configure_st_t* settings);

#endif//__PCA9532_H

/**
 * @}
 */