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1 /* |
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2 * MIT License |
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3 * |
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4 * Copyright (c) 2017 David Antliff |
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5 * Copyright (c) 2017 Chris Morgan <chmorgan@gmail.com> |
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6 * |
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7 * Permission is hereby granted, free of charge, to any person obtaining a copy |
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8 * of this software and associated documentation files (the "Software"), to deal |
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9 * in the Software without restriction, including without limitation the rights |
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10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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11 * copies of the Software, and to permit persons to whom the Software is |
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12 * furnished to do so, subject to the following conditions: |
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13 * |
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14 * The above copyright notice and this permission notice shall be included in all |
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15 * copies or substantial portions of the Software. |
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16 * |
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17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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23 * SOFTWARE. |
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24 */ |
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25 |
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26 #pragma once |
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27 #ifndef OWB_RMT_H |
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28 #define OWB_RMT_H |
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29 |
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30 #include "freertos/FreeRTOS.h" |
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31 #include "freertos/queue.h" |
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32 #include "freertos/ringbuf.h" |
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33 #include "driver/rmt.h" |
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34 |
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35 #ifdef __cplusplus |
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36 extern "C" { |
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37 #endif |
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38 |
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39 typedef struct |
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40 { |
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41 int tx_channel; ///< RMT channel to use for TX |
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42 int rx_channel; ///< RMT channel to use for RX |
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43 RingbufHandle_t rb; ///< Ring buffer handle |
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44 int gpio; ///< OneWireBus GPIO |
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45 OneWireBus bus; ///< OneWireBus instance |
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46 } owb_rmt_driver_info; |
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47 |
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48 /** |
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49 * @brief Initialise the RMT driver. |
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50 * @return OneWireBus*, pass this into the other OneWireBus public API functions |
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51 */ |
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52 OneWireBus* owb_rmt_initialize(owb_rmt_driver_info *info, uint8_t gpio_num, |
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53 rmt_channel_t tx_channel, rmt_channel_t rx_channel); |
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54 |
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55 #ifdef __cplusplus |
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56 } |
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57 #endif |
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58 |
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59 #endif // OWB_RMT_H |