Lines Matching +full:rx +full:- +full:tx +full:- +full:swap

1 /* SPDX-License-Identifier: GPL-2.0 */
9 #define DRIVER_NAME "stm32-usart"
192 #define RX_BUF_L 4096		 /* dma rx buffer length     */
193 #define RX_BUF_P (RX_BUF_L / 2)	 /* dma rx buffer period     */
194 #define TX_BUF_L RX_BUF_L	 /* dma tx buffer length     */
202 	struct dma_chan *rx_ch;  /* dma rx channel            */
203 	dma_addr_t rx_dma_buf;   /* dma rx buffer bus address */
204 	unsigned char *rx_buf;   /* dma rx buffer cpu address */
205 	struct dma_chan *tx_ch;  /* dma tx channel            */
206 	dma_addr_t tx_dma_buf;   /* dma tx buffer bus address */
207 	unsigned char *tx_buf;   /* dma tx buffer cpu address */
211 	bool tx_dma_busy;	 /* dma tx transaction in progress */
212 	bool rx_dma_busy;	 /* dma rx transaction in progress */
215 	bool swap;		 /* swap RX & TX pins */  member
217 	int rxftcfg;		/* RX FIFO threshold CFG      */
218 	int txftcfg;		/* TX FIFO threshold CFG      */