amiro-lld / include / alld_tlc5947.h @ cf1f756b
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| 1 | d6728c5b | Thomas Schöpping | /*
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| 2 | AMiRo-LLD is a compilation of low-level hardware drivers for the Autonomous Mini Robot (AMiRo) platform.
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| 3 | Copyright (C) 2016..2018 Thomas Schöpping et al.
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| 4 | |||
| 5 | This program is free software: you can redistribute it and/or modify
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| 6 | f0ca400f | Thomas Schöpping | it under the terms of the GNU Lesser General Public License as published by
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| 7 | d6728c5b | Thomas Schöpping | the Free Software Foundation, either version 3 of the License, or
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| 8 | (at your option) any later version.
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| 9 | |||
| 10 | This program is distributed in the hope that it will be useful,
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | f0ca400f | Thomas Schöpping | GNU Lesser General Public License for more details.
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| 14 | d6728c5b | Thomas Schöpping | |
| 15 | f0ca400f | Thomas Schöpping | You should have received a copy of the GNU Lesser General Public License
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| 16 | d6728c5b | Thomas Schöpping | along with this program. If not, see <http://www.gnu.org/licenses/>.
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| 17 | */
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| 18 | |||
| 19 | #ifndef _AMIROLLD_TLC5947_H_
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| 20 | #define _AMIROLLD_TLC5947_H_
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| 21 | |||
| 22 | #include <amiro-lld.h> |
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| 23 | |||
| 24 | #if defined(AMIROLLD_CFG_USE_TLC5947) || defined(__DOXYGEN__)
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| 25 | |||
| 26 | /**
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| 27 | * @brief Active state of the BLANK signal.
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| 28 | */
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| 29 | #define TLC5947_LLD_BLANK_ACTIVE_STATE APAL_GPIO_ACTIVE_HIGH
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| 30 | |||
| 31 | /**
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| 32 | * @brief Active state of the XLAT signal.
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| 33 | */
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| 34 | #define TLC5947_LLD_XLAT_ACTIVE_STATE APAL_GPIO_ACTIVE_HIGH
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| 35 | |||
| 36 | /**
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| 37 | * @brief Number of PWM channels.
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| 38 | */
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| 39 | #define TLC5947_LLD_NUM_CHANNELS 24 |
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| 40 | |||
| 41 | /**
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| 42 | * @brief Resulotion of the PWM channels in bits.
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| 43 | */
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| 44 | #define TLC5947_LLD_PWM_RESOLUTION_BITS 12 |
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| 45 | |||
| 46 | /**
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| 47 | * @brief Size of the TLC grayscale buffer in bytes.
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| 48 | */
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| 49 | #define TLC5947_LLD_BUFFER_SIZE (TLC5947_LLD_NUM_CHANNELS * TLC5947_LLD_PWM_RESOLUTION_BITS / 8) |
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| 50 | |||
| 51 | /**
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| 52 | * @brief The TLC5947Driver struct
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| 53 | */
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| 54 | typedef struct { |
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| 55 | cf1f756b | Thomas Schöpping | apalSPIDriver_t* spi_driver; /**< @brief The SPI Driver. */
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| 56 | apalControlGpio_t* blank_gpio; /**< @brief The identifier of the BLANK signal GPIO. */
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| 57 | apalControlGpio_t* xlat_gpio; /**< @brief The identifier of the XLAT signal GPIO. */
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| 58 | d6728c5b | Thomas Schöpping | } TLC5947Driver; |
| 59 | |||
| 60 | /**
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| 61 | * @brief The blank state of the TLC5947 driver.
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| 62 | */
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| 63 | typedef enum { |
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| 64 | TLC5947_LLD_BLANK_ENABLE = 0, /**< 'blank on' state of the TLC5947 driver. */ |
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| 65 | TLC5947_LLD_BLANK_DISABLE = 1, /**< 'blank off' state of the TLC5947 driver. */ |
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| 66 | } tlc5947_lld_blank_t; |
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| 67 | |||
| 68 | |||
| 69 | /**
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| 70 | * @brief TLC5947 buffer struct.
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| 71 | */
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| 72 | typedef struct { |
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| 73 | uint8_t data[TLC5947_LLD_BUFFER_SIZE]; /**< The raw buffer data. */
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| 74 | } tlc5947_lld_buffer_t; |
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| 75 | |||
| 76 | #ifdef __cplusplus
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| 77 | extern "C" { |
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| 78 | #endif
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| 79 | apalExitStatus_t tlc5947_lld_setBlank(const TLC5947Driver* const tlc5947, const tlc5947_lld_blank_t blank); |
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| 80 | apalExitStatus_t tlc5947_lld_getBlank(const TLC5947Driver* const tlc5947, tlc5947_lld_blank_t* const blank); |
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| 81 | apalExitStatus_t tlc5947_lld_update(const TLC5947Driver* const tlc5947); |
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| 82 | apalExitStatus_t tlc5947_lld_write(const TLC5947Driver* const tlc5947, const tlc5947_lld_buffer_t* const buffer); |
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| 83 | void tlc5947_lld_setBuffer(tlc5947_lld_buffer_t* const buffer, const uint8_t channel, const uint16_t value); |
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| 84 | uint16_t tlc5947_lld_getBuffer(const tlc5947_lld_buffer_t* const buffer, const uint8_t channel); |
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| 85 | #ifdef __cplusplus
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| 86 | } |
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| 87 | #endif
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| 88 | |||
| 89 | #endif /* defined(AMIROLLD_CFG_USE_TLC5947) */ |
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| 90 | |||
| 91 | #endif /* _AMIROLLD_TLC5947_H_ */ |