amiro-lld / drivers / TLC5947 / v1 / alld_TLC5947.h @ 72369edc
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/*
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AMiRo-LLD is a compilation of low-level hardware drivers for the Autonomous Mini Robot (AMiRo) platform.
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Copyright (C) 2016..2019 Thomas Schöpping et al.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file alld_TLC5947.h
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* @brief LED Driver macros and structures.
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*
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* @addtogroup lld_leddriver
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* @{
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*/
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#ifndef AMIROLLD_TLC5947_H
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#define AMIROLLD_TLC5947_H
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#include <amiro-lld.h> |
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/******************************************************************************/
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/* CONSTANTS */
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/******************************************************************************/
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/**
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* @brief Number of chained TLC5947 devices.
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*/
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#if !defined(TLC5947_LLD_CHAINED) || defined(__DOXYGEN__)
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#define TLC5947_LLD_CHAINED 1 |
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#endif
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/**
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* @brief Active state of the BLANK signal.
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*/
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#define TLC5947_LLD_BLANK_ACTIVE_STATE APAL_GPIO_ACTIVE_HIGH
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/**
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* @brief Signal edge of the XLAT signal, which causes the SPI registers to be latched to the output.
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*/
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#define TLC5947_LLD_XLAT_UPDATE_EDGE APAL_GPIO_EDGE_RISING
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/**
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* @brief Number of PWM channels.
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*/
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#define TLC5947_LLD_NUM_CHANNELS (TLC5947_LLD_CHAINED * 24) |
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/**
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* @brief Resulotion of the PWM channels in bits.
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*/
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#define TLC5947_LLD_PWM_RESOLUTION_BITS 12 |
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/**
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* @brief Size of the TLC grayscale buffer in bytes.
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*/
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#define TLC5947_LLD_BUFFER_SIZE (TLC5947_LLD_NUM_CHANNELS * TLC5947_LLD_PWM_RESOLUTION_BITS / 8) |
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/******************************************************************************/
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/* SETTINGS */
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/******************************************************************************/
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/******************************************************************************/
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/* CHECKS */
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/******************************************************************************/
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/******************************************************************************/
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/* DATA STRUCTURES AND TYPES */
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/******************************************************************************/
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/**
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* @brief The TLC5947Driver struct
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*/
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typedef struct { |
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apalSPIDriver_t* spi_driver; /**< @brief The SPI Driver. */
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const apalControlGpio_t* blank_gpio; /**< @brief The identifier of the BLANK signal GPIO (may be @p NULL). */ |
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const apalControlGpio_t* xlat_gpio; /**< @brief The identifier of the XLAT signal GPIO (may be @p NULL). */ |
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} TLC5947Driver; |
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/**
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* @brief The blank state of the TLC5947 driver.
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*/
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typedef enum { |
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TLC5947_LLD_BLANK_ENABLE = 0, /**< 'blank on' state of the TLC5947 driver. */ |
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TLC5947_LLD_BLANK_DISABLE = 1, /**< 'blank off' state of the TLC5947 driver. */ |
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} tlc5947_lld_blank_t; |
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/**
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* @brief TLC5947 buffer struct.
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*/
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typedef struct { |
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uint8_t data[TLC5947_LLD_BUFFER_SIZE]; /**< The raw buffer data. */
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} tlc5947_lld_buffer_t; |
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/******************************************************************************/
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/* MACROS */
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/******************************************************************************/
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/******************************************************************************/
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/* EXTERN DECLARATIONS */
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/******************************************************************************/
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#ifdef __cplusplus
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extern "C" { |
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#endif
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apalExitStatus_t tlc5947_lld_setBlank(const TLC5947Driver* const tlc5947, const tlc5947_lld_blank_t blank); |
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apalExitStatus_t tlc5947_lld_getBlank(const TLC5947Driver* const tlc5947, tlc5947_lld_blank_t* const blank); |
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apalExitStatus_t tlc5947_lld_update(const TLC5947Driver* const tlc5947); |
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apalExitStatus_t tlc5947_lld_write(const TLC5947Driver* const tlc5947, const tlc5947_lld_buffer_t* const buffer); |
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void tlc5947_lld_setBuffer(tlc5947_lld_buffer_t* const buffer, const uint8_t channel, const uint16_t value); |
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uint16_t tlc5947_lld_getBuffer(const tlc5947_lld_buffer_t* const buffer, const uint8_t channel); |
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#ifdef __cplusplus
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} |
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#endif
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/******************************************************************************/
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/* INLINE FUNCTIONS */
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/******************************************************************************/
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#endif /* AMIROLLD_TLC5947_H */ |
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/** @} */
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