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feat(parlio_tx): support loop transmission

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Chen Jichang
2025-03-18 16:23:34 +08:00
parent 6474fd67ae
commit 65074afc0d
17 changed files with 292 additions and 66 deletions
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30
components/hal/esp32h2/include/hal/parlio_ll.h
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2023-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -48,6 +48,11 @@ typedef enum {
PARLIO_LL_RX_EOF_COND_EN_INACTIVE, /*!< RX unit generates EOF event when the external enable signal becomes inactive */
} parlio_ll_rx_eof_cond_t;
typedef enum {
PARLIO_LL_TX_EOF_COND_DATA_LEN, /*!< TX unit generates EOF event when it transmits particular data bit length that specified in `tx_bitlen`. */
PARLIO_LL_TX_EOF_COND_DMA_EOF, /*!< TX unit generates EOF event when the DMA EOF takes place */
} parlio_ll_tx_eof_cond_t;
/**
* @brief Enable or disable the parlio peripheral APB clock
*
@@ -475,6 +480,29 @@ static inline void parlio_ll_tx_set_trans_bit_len(parl_io_dev_t *dev, uint32_t b
dev->tx_data_cfg.tx_bitlen = bitlen;
}
/**
* @brief Check if tx size can be determined by DMA
*
* @param dev Parallel IO register base address (not used)
*/
static inline bool parlio_ll_tx_support_dma_eof(parl_io_dev_t *dev)
{
(void)dev;
return ESP_CHIP_REV_ABOVE(efuse_hal_chip_revision(), 102);
}
/**
* @brief Set the condition to generate the TX EOF event
*
* @param dev Parallel IO register base address
* @param cond TX EOF condition
*/
__attribute__((always_inline))
static inline void parlio_ll_tx_set_eof_condition(parl_io_dev_t *dev, parlio_ll_tx_eof_cond_t cond)
{
dev->tx_genrl_cfg.tx_eof_gen_sel = cond;
}
/**
* @brief Whether to enable the TX clock gating
*