36 	Spi *regs;  member
99 	Spi *regs = cfg->regs;  in spi_sam_configure()  local
153 	regs->SPI_CR = SPI_CR_SPIDIS; /* Disable SPI */  in spi_sam_configure()
154 	regs->SPI_MR = spi_mr;  in spi_sam_configure()
155 	regs->SPI_CSR[spi_csr_idx] = spi_csr;  in spi_sam_configure()
156 	regs->SPI_CR = SPI_CR_SPIEN; /* Enable SPI */  in spi_sam_configure()
164 static void spi_sam_finish(Spi *regs)  in spi_sam_finish()  argument
166 	while ((regs->SPI_SR & SPI_SR_TXEMPTY) == 0) {  in spi_sam_finish()
169 	while (regs->SPI_SR & SPI_SR_RDRF) {  in spi_sam_finish()
170 		(void)regs->SPI_RDR;  in spi_sam_finish()
175 static void spi_sam_fast_tx(Spi *regs, const uint8_t *tx_buf, const uint32_t tx_buf_len)  in spi_sam_fast_tx()  argument
184 		while ((regs->SPI_SR & SPI_SR_TDRE) == 0) {  in spi_sam_fast_tx()
187 		regs->SPI_TDR = SPI_TDR_TD(ch);  in spi_sam_fast_tx()
192 static void spi_sam_fast_rx(Spi *regs, uint8_t *rx_buf, const uint32_t rx_buf_len)  in spi_sam_fast_rx()  argument
202 	regs->SPI_TDR = SPI_TDR_TD(0);  in spi_sam_fast_rx()
206 		while ((regs->SPI_SR & SPI_SR_TDRE) == 0) {  in spi_sam_fast_rx()
210 		while ((regs->SPI_SR & SPI_SR_RDRF) == 0) {  in spi_sam_fast_rx()
213 		*rx = (uint8_t)regs->SPI_RDR;  in spi_sam_fast_rx()
217 		regs->SPI_TDR = SPI_TDR_TD(0);  in spi_sam_fast_rx()
222 	while ((regs->SPI_SR & SPI_SR_RDRF) == 0) {  in spi_sam_fast_rx()
225 	*rx = (uint8_t)regs->SPI_RDR;  in spi_sam_fast_rx()
229 static void spi_sam_fast_txrx(Spi *regs,  in spi_sam_fast_txrx()  argument
255 	regs->SPI_TDR = SPI_TDR_TD(*tx++);  in spi_sam_fast_txrx()
258 		while ((regs->SPI_SR & SPI_SR_TDRE) == 0) {  in spi_sam_fast_txrx()
265 		regs->SPI_TDR = SPI_TDR_TD(*tx++);  in spi_sam_fast_txrx()
268 		while ((regs->SPI_SR & SPI_SR_RDRF) == 0) {  in spi_sam_fast_txrx()
271 		*rx++ = (uint8_t)regs->SPI_RDR;  in spi_sam_fast_txrx()
275 	while ((regs->SPI_SR & SPI_SR_RDRF) == 0) {  in spi_sam_fast_txrx()
278 	*rx = (uint8_t)regs->SPI_RDR;  in spi_sam_fast_txrx()
316 			    Spi *regs,  in spi_sam_dma_txrx()  argument
360 		.source_address = (uint32_t)&regs->SPI_RDR,  in spi_sam_dma_txrx()
393 		.dest_address = (uint32_t)&regs->SPI_TDR  in spi_sam_dma_txrx()
426 		spi_sam_finish(regs);  in spi_sam_dma_txrx()
439 			      Spi *regs,  in spi_sam_rx()  argument
451 		spi_sam_fast_rx(regs, rx_buf, rx_buf_len);  in spi_sam_rx()
454 		return spi_sam_dma_txrx(dev, regs, NULL, rx_buf, rx_buf_len);  in spi_sam_rx()
458 	spi_sam_fast_rx(regs, rx_buf, rx_buf_len);  in spi_sam_rx()
460 	spi_sam_finish(regs);  in spi_sam_rx()
467 			     Spi *regs,  in spi_sam_tx()  argument
479 		spi_sam_fast_tx(regs, tx_buf, tx_buf_len);  in spi_sam_tx()
482 		return spi_sam_dma_txrx(dev, regs, tx_buf, NULL, tx_buf_len);  in spi_sam_tx()
486 	spi_sam_fast_tx(regs, tx_buf, tx_buf_len);  in spi_sam_tx()
488 	spi_sam_finish(regs);  in spi_sam_tx()
495 				Spi *regs,  in spi_sam_txrx()  argument
508 		spi_sam_fast_txrx(regs, tx_buf, rx_buf, buf_len);  in spi_sam_txrx()
511 		return spi_sam_dma_txrx(dev, regs, tx_buf, rx_buf, buf_len);  in spi_sam_txrx()
515 	spi_sam_fast_txrx(regs, tx_buf, rx_buf, buf_len);  in spi_sam_txrx()
517 	spi_sam_finish(regs);  in spi_sam_txrx()
533 	Spi *regs = cfg->regs;  in spi_sam_fast_transceive()  local
549 			spi_sam_rx(dev, regs, rx->buf, rx->len);  in spi_sam_fast_transceive()
551 			spi_sam_tx(dev, regs, tx->buf, tx->len);  in spi_sam_fast_transceive()
553 			spi_sam_txrx(dev, regs, tx->buf, rx->buf, rx->len);  in spi_sam_fast_transceive()
565 		spi_sam_tx(dev, regs, tx->buf, tx->len);  in spi_sam_fast_transceive()
570 		spi_sam_rx(dev, regs, rx->buf, rx->len);  in spi_sam_fast_transceive()
580 static void spi_sam_shift_master(Spi *regs, struct spi_sam_data *data)  in spi_sam_shift_master()  argument
591 	while ((regs->SPI_SR & SPI_SR_TDRE) == 0) {  in spi_sam_shift_master()
594 	regs->SPI_TDR = SPI_TDR_TD(tx);  in spi_sam_shift_master()
597 	while ((regs->SPI_SR & SPI_SR_RDRF) == 0) {  in spi_sam_shift_master()
600 	rx = (uint8_t)regs->SPI_RDR;  in spi_sam_shift_master()
665 		ret = spi_sam_rx(dev, cfg->regs, sqe->rx.buf, sqe->rx.buf_len);  in spi_sam_iodev_start()
668 		ret = spi_sam_tx(dev, cfg->regs, sqe->tx.buf, sqe->tx.buf_len);  in spi_sam_iodev_start()
671 		ret = spi_sam_tx(dev, cfg->regs, sqe->tiny_tx.buf, sqe->tiny_tx.buf_len);  in spi_sam_iodev_start()
674 		ret = spi_sam_txrx(dev, cfg->regs, sqe->txrx.tx_buf, sqe->txrx.rx_buf,  in spi_sam_iodev_start()
767 			spi_sam_shift_master(cfg->regs, data);  in spi_sam_transceive()
872 		.regs = (Spi *)DT_INST_REG_ADDR(n),						\