mirror of
https://github.com/espressif/esp-idf.git
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feat(hal): graudate the RMT hal driver into a new component
This commit is contained in:
Chen Jichang
committed by
suda-morris
suda-morris
parent
c740652f3d
commit
10c473fbbd
@@ -1,590 +0,0 @@
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/*
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* SPDX-FileCopyrightText: 2019-2025 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @note TX and RX channels are index from 0 in the LL driver, i.e. tx_channel = [0,7], rx_channel = [0,7]
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*/
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#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include "hal/misc.h"
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#include "hal/assert.h"
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#include "soc/rmt_struct.h"
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#include "soc/dport_reg.h"
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#include "hal/rmt_types.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define RMT_LL_EVENT_TX_DONE(channel) (1 << ((channel) * 3))
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#define RMT_LL_EVENT_TX_THRES(channel) (1 << ((channel) + 24))
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#define RMT_LL_EVENT_TX_LOOP_END(channel) (0) // esp32 doesn't support tx loop count
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#define RMT_LL_EVENT_TX_ERROR(channel) (1 << ((channel) * 3 + 2))
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#define RMT_LL_EVENT_RX_DONE(channel) (1 << ((channel) * 3 + 1))
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#define RMT_LL_EVENT_RX_THRES(channel) (0) // esp32 doesn't support rx wrap
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#define RMT_LL_EVENT_RX_ERROR(channel) (1 << ((channel) * 3 + 2))
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#define RMT_LL_EVENT_TX_MASK(channel) (RMT_LL_EVENT_TX_DONE(channel) | RMT_LL_EVENT_TX_THRES(channel) | RMT_LL_EVENT_TX_LOOP_END(channel))
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#define RMT_LL_EVENT_RX_MASK(channel) (RMT_LL_EVENT_RX_DONE(channel) | RMT_LL_EVENT_RX_THRES(channel))
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#define RMT_LL_MAX_FILTER_VALUE 255
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#define RMT_LL_MAX_IDLE_VALUE 65535
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typedef enum {
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RMT_LL_MEM_OWNER_SW = 0,
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RMT_LL_MEM_OWNER_HW = 1,
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} rmt_ll_mem_owner_t;
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typedef enum {
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RMT_LL_MEM_LP_MODE_SHUT_DOWN, // power down memory during low power stage
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} rmt_ll_mem_lp_mode_t;
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/**
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* @brief Enable the bus clock for RMT module
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*
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* @param group_id Group ID
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* @param enable true to enable, false to disable
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*/
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static inline void rmt_ll_enable_bus_clock(int group_id, bool enable)
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{
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(void)group_id;
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uint32_t reg_val = DPORT_READ_PERI_REG(DPORT_PERIP_CLK_EN_REG);
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reg_val &= ~DPORT_RMT_CLK_EN;
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reg_val |= enable << 9;
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DPORT_WRITE_PERI_REG(DPORT_PERIP_CLK_EN_REG, reg_val);
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}
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/// use a macro to wrap the function, force the caller to use it in a critical section
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/// the critical section needs to declare the __DECLARE_RCC_ATOMIC_ENV variable in advance
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#define rmt_ll_enable_bus_clock(...) do { \
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(void)__DECLARE_RCC_ATOMIC_ENV; \
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rmt_ll_enable_bus_clock(__VA_ARGS__); \
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} while(0)
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/**
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* @brief Reset the RMT module
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*
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* @param group_id Group ID
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*/
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static inline void rmt_ll_reset_register(int group_id)
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{
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(void)group_id;
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DPORT_WRITE_PERI_REG(DPORT_PERIP_RST_EN_REG, DPORT_RMT_RST);
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DPORT_WRITE_PERI_REG(DPORT_PERIP_RST_EN_REG, 0);
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}
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/// use a macro to wrap the function, force the caller to use it in a critical section
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/// the critical section needs to declare the __DECLARE_RCC_ATOMIC_ENV variable in advance
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#define rmt_ll_reset_register(...) do { \
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(void)__DECLARE_RCC_ATOMIC_ENV; \
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rmt_ll_reset_register(__VA_ARGS__); \
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} while(0)
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/**
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* @brief Force power on the RMT memory block, regardless of the outside PMU logic
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*
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* @param dev Peripheral instance address
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*/
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static inline void rmt_ll_mem_force_power_on(rmt_dev_t *dev)
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{
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(void)dev;
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}
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/**
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* @brief Force the RMT memory block into low power mode, regardless of the outside PMU logic
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*
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* @param dev Peripheral instance address
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*/
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static inline void rmt_ll_mem_force_low_power(rmt_dev_t *dev)
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{
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dev->conf_ch[0].conf0.mem_pd = 1;
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}
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/**
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* @brief Power control the RMT memory block by the outside PMU logic
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*
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* @param dev Peripheral instance address
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*/
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static inline void rmt_ll_mem_power_by_pmu(rmt_dev_t *dev)
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{
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dev->conf_ch[0].conf0.mem_pd = 0;
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}
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/**
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* @brief Set low power mode for RMT memory block
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*
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* @param dev Peripheral instance address
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* @param mode RMT memory low power mode in low power stage
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*/
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static inline void rmt_ll_mem_set_low_power_mode(rmt_dev_t *dev, rmt_ll_mem_lp_mode_t mode)
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{
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(void)dev;
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HAL_ASSERT(mode == RMT_LL_MEM_LP_MODE_SHUT_DOWN);
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}
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/**
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* @brief Enable APB accessing RMT memory in nonfifo mode
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*
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* @param dev Peripheral instance address
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* @param enable True to enable, False to disable
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*/
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static inline void rmt_ll_enable_mem_access_nonfifo(rmt_dev_t *dev, bool enable)
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{
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dev->apb_conf.fifo_mask = enable;
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}
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/**
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* @brief Set clock source and divider for RMT channel group
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*
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* @param dev Peripheral instance address
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* @param channel not used as clock source is set for all channels
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* @param src Clock source
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* @param divider_integral Integral part of the divider
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* @param divider_denominator Denominator part of the divider
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* @param divider_numerator Numerator part of the divider
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*/
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static inline void rmt_ll_set_group_clock_src(rmt_dev_t *dev, uint32_t channel, rmt_clock_source_t src,
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uint32_t divider_integral, uint32_t divider_denominator, uint32_t divider_numerator)
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{
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(void)divider_integral;
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(void)divider_denominator;
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(void)divider_numerator;
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switch (src) {
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case RMT_CLK_SRC_APB:
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dev->conf_ch[channel].conf1.ref_always_on = 1;
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break;
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case RMT_CLK_SRC_REF_TICK:
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dev->conf_ch[channel].conf1.ref_always_on = 0;
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break;
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default:
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HAL_ASSERT(false && "unsupported RMT clock source");
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break;
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}
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}
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/**
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* @brief Enable RMT peripheral source clock
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*
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* @note RMT doesn't support enable/disable clock source, this function is only for compatibility
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*
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* @param dev Peripheral instance address
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* @param en True to enable, False to disable
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*/
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static inline void rmt_ll_enable_group_clock(rmt_dev_t *dev, bool en)
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{
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(void)dev;
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(void)en;
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}
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////////////////////////////////////////TX Channel Specific/////////////////////////////////////////////////////////////
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/**
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* @brief Reset clock divider for TX channels by mask
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*
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* @param dev Peripheral instance address
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* @param channel_mask Mask of TX channels
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*/
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static inline void rmt_ll_tx_reset_channels_clock_div(rmt_dev_t *dev, uint32_t channel_mask)
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{
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for (int i = 0; i < 8; i++) {
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if (channel_mask & (1 << i)) {
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dev->conf_ch[i].conf1.ref_cnt_rst = 1;
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}
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}
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}
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/**
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* @brief Set TX channel clock divider
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*
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* @param dev Peripheral instance address
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* @param channel RMT TX channel number
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* @param div Division value
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*/
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static inline void rmt_ll_tx_set_channel_clock_div(rmt_dev_t *dev, uint32_t channel, uint32_t div)
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{
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HAL_ASSERT(div >= 1 && div <= 256 && "divider out of range");
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// limit the maximum divider to 256
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if (div >= 256) {
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div = 0; // 0 means 256 division
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}
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HAL_FORCE_MODIFY_U32_REG_FIELD(dev->conf_ch[channel].conf0, div_cnt, div);
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}
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/**
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* @brief Reset RMT reading pointer for TX channel
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*
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* @param dev Peripheral instance address
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* @param channel RMT TX channel number
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*/
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__attribute__((always_inline))
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static inline void rmt_ll_tx_reset_pointer(rmt_dev_t *dev, uint32_t channel)
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{
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dev->conf_ch[channel].conf1.mem_rd_rst = 1;
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dev->conf_ch[channel].conf1.mem_rd_rst = 0;
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dev->conf_ch[channel].conf1.apb_mem_rst = 1;
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dev->conf_ch[channel].conf1.apb_mem_rst = 0;
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}
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/**
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* @brief Start transmitting for TX channel
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*
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* @param dev Peripheral instance address
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* @param channel RMT TX channel number
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*/
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__attribute__((always_inline))
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static inline void rmt_ll_tx_start(rmt_dev_t *dev, uint32_t channel)
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{
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dev->conf_ch[channel].conf1.tx_start = 1;
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}
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/**
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* @brief Set memory block number for TX channel
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*
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* @param dev Peripheral instance address
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* @param channel RMT TX channel number
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* @param block_num memory block number
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*/
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static inline void rmt_ll_tx_set_mem_blocks(rmt_dev_t *dev, uint32_t channel, uint8_t block_num)
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{
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dev->conf_ch[channel].conf0.mem_size = block_num;
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}
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/**
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* @brief Enable TX wrap
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*
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* @param dev Peripheral instance address
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* @param channel RMT TX channel number
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* @param enable True to enable, False to disable
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*/
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static inline void rmt_ll_tx_enable_wrap(rmt_dev_t *dev, uint32_t channel, bool enable)
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{
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dev->apb_conf.mem_tx_wrap_en = enable;
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}
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/**
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* @brief Enable transmitting in a loop
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*
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* @param dev Peripheral instance address
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* @param channel RMT TX channel number
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* @param enable True to enable, False to disable
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*/
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__attribute__((always_inline))
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static inline void rmt_ll_tx_enable_loop(rmt_dev_t *dev, uint32_t channel, bool enable)
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{
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dev->conf_ch[channel].conf1.tx_conti_mode = enable;
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}
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/**
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* @brief Fix the output level when TX channel is in IDLE state
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*
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* @param dev Peripheral instance address
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* @param channel RMT TX channel number
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* @param level IDLE level (1 => high, 0 => low)
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* @param enable True to fix the IDLE level, otherwise the IDLE level is determined by EOF encoder
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*/
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__attribute__((always_inline))
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static inline void rmt_ll_tx_fix_idle_level(rmt_dev_t *dev, uint32_t channel, uint8_t level, bool enable)
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{
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dev->conf_ch[channel].conf1.idle_out_en = enable;
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dev->conf_ch[channel].conf1.idle_out_lv = level;
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}
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/**
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* @brief Set the amount of RMT symbols that can trigger the limitation interrupt
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*
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* @param dev Peripheral instance address
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* @param channel RMT TX channel number
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* @param limit Specify the number of symbols
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*/
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static inline void rmt_ll_tx_set_limit(rmt_dev_t *dev, uint32_t channel, uint32_t limit)
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{
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dev->tx_lim_ch[channel].limit = limit;
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}
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/**
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* @brief Set high and low duration of carrier signal
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*
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* @param dev Peripheral instance address
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* @param channel RMT TX channel number
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* @param high_ticks Duration of high level
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* @param low_ticks Duration of low level
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*/
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static inline void rmt_ll_tx_set_carrier_high_low_ticks(rmt_dev_t *dev, uint32_t channel, uint32_t high_ticks, uint32_t low_ticks)
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{
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HAL_ASSERT(high_ticks >= 1 && high_ticks <= 65536 && low_ticks >= 1 && low_ticks <= 65536 && "out of range high/low ticks");
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// ticks=0 means 65536 in hardware
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if (high_ticks >= 65536) {
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high_ticks = 0;
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}
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if (low_ticks >= 65536) {
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low_ticks = 0;
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}
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HAL_FORCE_MODIFY_U32_REG_FIELD(dev->carrier_duty_ch[channel], high, high_ticks);
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HAL_FORCE_MODIFY_U32_REG_FIELD(dev->carrier_duty_ch[channel], low, low_ticks);
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}
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/**
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* @brief Enable modulating carrier signal to TX channel
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*
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* @param dev Peripheral instance address
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* @param channel RMT TX channel number
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* @param enable True to enable, False to disable
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*/
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static inline void rmt_ll_tx_enable_carrier_modulation(rmt_dev_t *dev, uint32_t channel, bool enable)
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{
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dev->conf_ch[channel].conf0.carrier_en = enable;
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}
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/**
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* @brief Set on high or low to modulate the carrier signal
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*
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* @param dev Peripheral instance address
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* @param channel RMT TX channel number
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* @param level Which level to modulate on (0=>low level, 1=>high level)
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*/
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static inline void rmt_ll_tx_set_carrier_level(rmt_dev_t *dev, uint32_t channel, uint8_t level)
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{
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dev->conf_ch[channel].conf0.carrier_out_lv = level;
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}
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////////////////////////////////////////RX Channel Specific/////////////////////////////////////////////////////////////
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/**
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* @brief Reset clock divider for RX channels by mask
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*
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* @param dev Peripheral instance address
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* @param channel_mask Mask of RX channels
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*/
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static inline void rmt_ll_rx_reset_channels_clock_div(rmt_dev_t *dev, uint32_t channel_mask)
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{
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for (int i = 0; i < 8; i++) {
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if (channel_mask & (1 << i)) {
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dev->conf_ch[i].conf1.ref_cnt_rst = 1;
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}
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}
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}
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/**
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* @brief Set RX channel clock divider
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*
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* @param dev Peripheral instance address
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* @param channel RMT RX channel number
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* @param div Division value
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*/
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static inline void rmt_ll_rx_set_channel_clock_div(rmt_dev_t *dev, uint32_t channel, uint32_t div)
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{
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HAL_ASSERT(div >= 1 && div <= 256 && "divider out of range");
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// limit the maximum divider to 256
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if (div >= 256) {
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div = 0; // 0 means 256 division
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}
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HAL_FORCE_MODIFY_U32_REG_FIELD(dev->conf_ch[channel].conf0, div_cnt, div);
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}
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/**
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* @brief Reset RMT writing pointer for RX channel
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*
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* @param dev Peripheral instance address
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* @param channel RMT RX channel number
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*/
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__attribute__((always_inline))
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static inline void rmt_ll_rx_reset_pointer(rmt_dev_t *dev, uint32_t channel)
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{
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dev->conf_ch[channel].conf1.mem_wr_rst = 1;
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dev->conf_ch[channel].conf1.mem_wr_rst = 0;
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dev->conf_ch[channel].conf1.apb_mem_rst = 1;
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dev->conf_ch[channel].conf1.apb_mem_rst = 0;
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}
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/**
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* @brief Enable receiving for RX channel
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*
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* @param dev Peripheral instance address
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* @param channel RMT RX channel number
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* @param enable True to enable, False to disable
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*/
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__attribute__((always_inline))
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static inline void rmt_ll_rx_enable(rmt_dev_t *dev, uint32_t channel, bool enable)
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{
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dev->conf_ch[channel].conf1.rx_en = enable;
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}
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/**
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* @brief Set memory block number for RX channel
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*
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* @param dev Peripheral instance address
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* @param channel RMT RX channel number
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* @param block_num memory block number
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*/
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static inline void rmt_ll_rx_set_mem_blocks(rmt_dev_t *dev, uint32_t channel, uint8_t block_num)
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{
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dev->conf_ch[channel].conf0.mem_size = block_num;
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}
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/**
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* @brief Set the time length for RX channel before going into IDLE state
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*
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* @param dev Peripheral instance address
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* @param channel RMT RX channel number
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* @param thres Time length threshold
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*/
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__attribute__((always_inline))
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static inline void rmt_ll_rx_set_idle_thres(rmt_dev_t *dev, uint32_t channel, uint32_t thres)
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{
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HAL_FORCE_MODIFY_U32_REG_FIELD(dev->conf_ch[channel].conf0, idle_thres, thres);
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}
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/**
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* @brief Set RMT memory owner for RX channel
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*
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* @param dev Peripheral instance address
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* @param channel RMT RX channel number
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* @param owner Memory owner
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*/
|
||||
__attribute__((always_inline))
|
||||
static inline void rmt_ll_rx_set_mem_owner(rmt_dev_t *dev, uint32_t channel, rmt_ll_mem_owner_t owner)
|
||||
{
|
||||
dev->conf_ch[channel].conf1.mem_owner = owner;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Enable filter for RX channel
|
||||
*
|
||||
* @param dev Peripheral instance address
|
||||
* @param channel RMT RX chanenl number
|
||||
* @param enable True to enable, False to disable
|
||||
*/
|
||||
__attribute__((always_inline))
|
||||
static inline void rmt_ll_rx_enable_filter(rmt_dev_t *dev, uint32_t channel, bool enable)
|
||||
{
|
||||
dev->conf_ch[channel].conf1.rx_filter_en = enable;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Set RX channel filter threshold (i.e. the maximum width of one pulse signal that would be treated as a noise)
|
||||
*
|
||||
* @param dev Peripheral instance address
|
||||
* @param channel RMT RX channel number
|
||||
* @param thres Filter threshold
|
||||
*/
|
||||
__attribute__((always_inline))
|
||||
static inline void rmt_ll_rx_set_filter_thres(rmt_dev_t *dev, uint32_t channel, uint32_t thres)
|
||||
{
|
||||
HAL_FORCE_MODIFY_U32_REG_FIELD(dev->conf_ch[channel].conf1, rx_filter_thres, thres);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Get RMT memory write cursor offset
|
||||
*
|
||||
* @param dev Peripheral instance address
|
||||
* @param channel RMT RX channel number
|
||||
* @return writer offset
|
||||
*/
|
||||
__attribute__((always_inline))
|
||||
static inline uint32_t rmt_ll_rx_get_memory_writer_offset(rmt_dev_t *dev, uint32_t channel)
|
||||
{
|
||||
return (dev->status_ch[channel] & 0x3FF) - (channel) * 64;
|
||||
}
|
||||
|
||||
//////////////////////////////////////////Interrupt Specific////////////////////////////////////////////////////////////
|
||||
|
||||
/**
|
||||
* @brief Enable RMT interrupt for specific event mask
|
||||
*
|
||||
* @param dev Peripheral instance address
|
||||
* @param mask Event mask
|
||||
* @param enable True to enable, False to disable
|
||||
*/
|
||||
__attribute__((always_inline))
|
||||
static inline void rmt_ll_enable_interrupt(rmt_dev_t *dev, uint32_t mask, bool enable)
|
||||
{
|
||||
if (enable) {
|
||||
dev->int_ena.val |= mask;
|
||||
} else {
|
||||
dev->int_ena.val &= ~mask;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Clear RMT interrupt status by mask
|
||||
*
|
||||
* @param dev Peripheral instance address
|
||||
* @param mask Interrupt status mask
|
||||
*/
|
||||
__attribute__((always_inline))
|
||||
static inline void rmt_ll_clear_interrupt_status(rmt_dev_t *dev, uint32_t mask)
|
||||
{
|
||||
dev->int_clr.val = mask;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Get interrupt status register address
|
||||
*
|
||||
* @param dev Peripheral instance address
|
||||
* @return Register address
|
||||
*/
|
||||
static inline volatile void *rmt_ll_get_interrupt_status_reg(rmt_dev_t *dev)
|
||||
{
|
||||
return &dev->int_st;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Get interrupt status for TX channel
|
||||
*
|
||||
* @param dev Peripheral instance address
|
||||
* @param channel RMT TX channel number
|
||||
* @return Interrupt status
|
||||
*/
|
||||
__attribute__((always_inline))
|
||||
static inline uint32_t rmt_ll_tx_get_interrupt_status(rmt_dev_t *dev, uint32_t channel)
|
||||
{
|
||||
return dev->int_st.val & RMT_LL_EVENT_TX_MASK(channel);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Get interrupt raw status for TX channel
|
||||
*
|
||||
* @param dev Peripheral instance address
|
||||
* @param channel RMT TX channel number
|
||||
* @return Interrupt raw status
|
||||
*/
|
||||
static inline uint32_t rmt_ll_tx_get_interrupt_status_raw(rmt_dev_t *dev, uint32_t channel)
|
||||
{
|
||||
return dev->int_raw.val & (RMT_LL_EVENT_TX_MASK(channel) | RMT_LL_EVENT_TX_ERROR(channel));
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Get interrupt raw status for RX channel
|
||||
*
|
||||
* @param dev Peripheral instance address
|
||||
* @param channel RMT RX channel number
|
||||
* @return Interrupt raw status
|
||||
*/
|
||||
__attribute__((always_inline))
|
||||
static inline uint32_t rmt_ll_rx_get_interrupt_status_raw(rmt_dev_t *dev, uint32_t channel)
|
||||
{
|
||||
return dev->int_raw.val & (RMT_LL_EVENT_RX_MASK(channel) | RMT_LL_EVENT_RX_ERROR(channel));
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Get interrupt status for RX channel
|
||||
*
|
||||
* @param dev Peripheral instance address
|
||||
* @param channel RMT RX channel number
|
||||
* @return Interrupt status
|
||||
*/
|
||||
__attribute__((always_inline))
|
||||
static inline uint32_t rmt_ll_rx_get_interrupt_status(rmt_dev_t *dev, uint32_t channel)
|
||||
{
|
||||
return dev->int_st.val & RMT_LL_EVENT_RX_MASK(channel);
|
||||
}
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
Reference in New Issue
Block a user