drivers: ieee802154: cc2520: Let's use only symetrical tx/rx spi buffer (386b2f9e) · Commits · Wenxi XU / zephyr

drivers/ieee802154/ieee802154_cc2520.c

+0 −45

Original line number	Diff line number	Diff line
		@@ -468,11 +468,6 @@ static inline void flush_rxfifo(struct cc2520_context *cc2520)
		write_reg_excflag0(&cc2520->spi, EXCFLAG0_RESET_RX_FLAGS);
		}

		#ifdef CONFIG_SPI_QMSI
		/** This is a workaround, for SPI QMSI drivers as current QMSI API does not
		* support asymmetric tx/rx buffer lengths.
		* (i.e.: it's up to the user to handle tx dummy bytes in tx buffer)
		*/
		static inline uint8_t read_rxfifo_length(struct cc2520_spi *spi)
		{
		spi->cmd_buf[0] = CC2520_INS_RXBUF;
		@@ -513,46 +508,6 @@ static inline bool read_rxfifo_content(struct cc2520_spi *spi,
		return true;
		}

		#else /* CONFIG_SPI_QMSI */
		static inline uint8_t read_rxfifo_length(struct cc2520_spi *spi)
		{
		spi->cmd_buf[0] = CC2520_INS_RXBUF;

		spi_slave_select(spi->dev, spi->slave);

		if (spi_transceive(spi->dev, spi->cmd_buf, 1,
		spi->cmd_buf, 2) == 0) {
		return spi->cmd_buf[1];
		}

		return 0;
		}

		static inline bool read_rxfifo_content(struct cc2520_spi *spi,
		struct net_buf *buf, uint8_t len)
		{
		uint8_t data[128+1];

		spi->cmd_buf[0] = CC2520_INS_RXBUF;

		spi_slave_select(spi->dev, spi->slave);

		if (spi_transceive(spi->dev, spi->cmd_buf, 1, data, len+1) != 0) {
		return false;
		}

		if (read_reg_excflag0(spi) & EXCFLAG0_RX_UNDERFLOW) {
		SYS_LOG_ERR("RX underflow!\n");
		return false;
		}

		memcpy(buf->data, &data[1], len);
		net_buf_add(buf, len);

		return true;
		}
		#endif /* CONFIG_SPI_QMSI */

		static inline bool verify_crc(struct cc2520_context *cc2520)
		{
		cc2520->spi.cmd_buf[0] = CC2520_INS_RXBUF;