4  * SPDX-License-Identifier: Apache-2.0
20 	if (config->slave != 0) {  in spi_config()
21 		if (config->slave >= SPI_MAX_CS_SIZE) {  in spi_config()
23 			return -ENOTSUP;  in spi_config()
25 		cs = (uint8_t)(config->slave);  in spi_config()
28 	if (config->operation & SPI_HALF_DUPLEX) {  in spi_config()
29 		LOG_ERR("Half-duplex not supported");  in spi_config()
30 		return -ENOTSUP;  in spi_config()
33 	if (SPI_WORD_SIZE_GET(config->operation) != 8) {  in spi_config()
35 		return -ENOTSUP;  in spi_config()
38 	if (config->operation & SPI_CS_ACTIVE_HIGH) {  in spi_config()
40 		return -ENOTSUP;  in spi_config()
43 	if (config->operation & SPI_LOCK_ON) {  in spi_config()
45 		return -ENOTSUP;  in spi_config()
49 	    (config->operation & SPI_LINES_MASK) != SPI_LINES_SINGLE) {  in spi_config()
51 		return -ENOTSUP;  in spi_config()
54 	if (config->operation & SPI_TRANSFER_LSB) {  in spi_config()
56 		return -ENOTSUP;  in spi_config()
59 	if (config->operation & (SPI_MODE_CPOL | SPI_MODE_CPHA)) {  in spi_config()
61 		return -ENOTSUP;  in spi_config()
64 	if (config->operation & SPI_OP_MODE_SLAVE) {  in spi_config()
66 		return -ENOTSUP;  in spi_config()
70 	if (config->operation & SPI_MODE_LOOP) {  in spi_config()
74 	*control = (uint16_t) (SPI_WORD_SIZE_GET(config->operation)  in spi_config()
105 	struct spi_context *ctx = &SPI_DATA(dev)->ctx;  in spi_litespi_xfer()
111 		if (i < ctx->tx_len) {  in spi_litespi_xfer()
112 			spi_litespi_send(dev, (uint8_t) (ctx->tx_buf)[i],  in spi_litespi_xfer()
120 		if (i < ctx->rx_len) {  in spi_litespi_xfer()
121 			ctx->rx_buf[i] = read_data;  in spi_litespi_xfer()
137 	spi_context_buffers_setup(&SPI_DATA(dev)->ctx, tx_bufs, rx_bufs, 1);  in spi_litespi_transceive()
149 	return -ENOTSUP;  in spi_litespi_transceive_async()
157 		return -EBUSY;  in spi_litespi_release()