alex/esp-idf
alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2024-10-05 20:47:46 -04:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

spi_slave_hd: add polling api to read/write buf to essl_spi

Browse Source
This commit is contained in:
Armando 2021-04-16 21:33:14 +08:00 committed by bot
parent 20993109e8
commit a87f5c6c02
2 changed files with 69 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
components/esp_serial_slave_link/essl_spi.c
View File

@ -76,6 +76,22 @@ esp_err_t essl_spi_rdbuf(spi_device_handle_t spi, uint8_t *out_data, int addr, i
return spi_device_transmit(spi, (spi_transaction_t*)&t);
}
esp_err_t essl_spi_rdbuf_polling(spi_device_handle_t spi, uint8_t *out_data, int addr, int len, uint32_t flags)
{
spi_transaction_ext_t t = {
.base = {
.cmd = get_hd_command(CMD_HD_RDBUF_REG, flags),
.addr = addr % 72,
.rxlength = len * 8,
.rx_buffer = out_data,
.flags = flags | SPI_TRANS_VARIABLE_DUMMY,
},
.dummy_bits = get_hd_dummy_bits(flags),
};
return spi_device_polling_transmit(spi, (spi_transaction_t*)&t);
}
esp_err_t essl_spi_wrbuf(spi_device_handle_t spi, const uint8_t *data, int addr, int len, uint32_t flags)
{
spi_transaction_ext_t t = {
@ -91,6 +107,21 @@ esp_err_t essl_spi_wrbuf(spi_device_handle_t spi, const uint8_t *data, int addr,
return spi_device_transmit(spi, (spi_transaction_t*)&t);
}
esp_err_t essl_spi_wrbuf_polling(spi_device_handle_t spi, const uint8_t *data, int addr, int len, uint32_t flags)
{
spi_transaction_ext_t t = {
.base = {
.cmd = get_hd_command(CMD_HD_WRBUF_REG, flags),
.addr = addr % 72,
.length = len * 8,
.tx_buffer = data,
.flags = flags | SPI_TRANS_VARIABLE_DUMMY,
},
.dummy_bits = get_hd_dummy_bits(flags),
};
return spi_device_polling_transmit(spi, (spi_transaction_t*)&t);
}
esp_err_t essl_spi_rddma_seg(spi_device_handle_t spi, uint8_t *out_data, int seg_len, uint32_t flags)
{
spi_transaction_ext_t t = {

40
components/esp_serial_slave_link/include/esp_serial_slave_link/essl_spi.h
View File

@ -28,7 +28,7 @@ extern "C"
////////////////////////////////////////////////////////////////////////////////
/**
* @brief Read the shared buffer from the slave.
* @brief Read the shared buffer from the slave in ISR way
*
* @note ``out_data`` should be prepared in words and in the DRAM. The buffer may be written in words
* by the DMA. When a byte is written, the remaining bytes in the same word will also be
@ -46,7 +46,25 @@ extern "C"
esp_err_t essl_spi_rdbuf(spi_device_handle_t spi, uint8_t *out_data, int addr, int len, uint32_t flags);
/**
* @brief Write the shared buffer of the slave.
* @brief Read the shared buffer from the slave in polling way
*
* @note ``out_data`` should be prepared in words and in the DRAM. The buffer may be written in words
* by the DMA. When a byte is written, the remaining bytes in the same word will also be
* overwritten, even the ``len`` is shorter than a word.
*
* @param spi SPI device handle representing the slave
* @param out_data Buffer for read data, strongly suggested to be in the DRAM and align to 4
* @param addr Address of the slave shared buffer
* @param len Length to read
* @param flags `SPI_TRANS_*` flags to control the transaction mode of the transaction to send.
* @return
* - ESP_OK: on success
* - or other return value from :cpp:func:`spi_device_transmit`.
*/
esp_err_t essl_spi_rdbuf_polling(spi_device_handle_t spi, uint8_t *out_data, int addr, int len, uint32_t flags);
/**
* @brief Write the shared buffer of the slave in ISR way
*
* @note ``out_data`` should be prepared in words and in the DRAM. The buffer may be written in words
* by the DMA. When a byte is written, the remaining bytes in the same word will also be
@ -63,6 +81,24 @@ esp_err_t essl_spi_rdbuf(spi_device_handle_t spi, uint8_t *out_data, int addr, i
*/
esp_err_t essl_spi_wrbuf(spi_device_handle_t spi, const uint8_t *data, int addr, int len, uint32_t flags);
/**
* @brief Write the shared buffer of the slave in polling way
*
* @note ``out_data`` should be prepared in words and in the DRAM. The buffer may be written in words
* by the DMA. When a byte is written, the remaining bytes in the same word will also be
* overwritten, even the ``len`` is shorter than a word.
*
* @param spi SPI device handle representing the slave
* @param data Buffer for data to send, strongly suggested to be in the DRAM and align to 4
* @param addr Address of the slave shared buffer,
* @param len Length to write
* @param flags `SPI_TRANS_*` flags to control the transaction mode of the transaction to send.
* @return
* - ESP_OK: success
* - or other return value from :cpp:func:`spi_device_polling_transmit`.
*/
esp_err_t essl_spi_wrbuf_polling(spi_device_handle_t spi, const uint8_t *data, int addr, int len, uint32_t flags);
/**
* @brief Receive long buffer in segments from the slave through its DMA.
*