6  * SPDX-License-Identifier: Apache-2.0
12 #include <zephyr/drivers/spi.h>
13 #include <zephyr/drivers/spi/rtio.h>
49 	const struct spi_mcux_config *config = dev->config;  in spi_mcux_transfer_next_packet()
50 	struct spi_mcux_data *data = dev->data;  in spi_mcux_transfer_next_packet()
51 	LPSPI_Type *base = config->base;  in spi_mcux_transfer_next_packet()
52 	struct spi_context *ctx = &data->ctx;  in spi_mcux_transfer_next_packet()
56 	if ((ctx->tx_len == 0) && (ctx->rx_len == 0)) {  in spi_mcux_transfer_next_packet()
58 		spi_context_cs_control(&data->ctx, false);  in spi_mcux_transfer_next_packet()
59 		spi_context_complete(&data->ctx, dev, 0);  in spi_mcux_transfer_next_packet()
64 			       (ctx->config->slave << LPSPI_MASTER_PCS_SHIFT);  in spi_mcux_transfer_next_packet()
66 	if (ctx->tx_len == 0) {  in spi_mcux_transfer_next_packet()
69 		transfer.rxData = ctx->rx_buf;  in spi_mcux_transfer_next_packet()
70 		transfer.dataSize = ctx->rx_len;  in spi_mcux_transfer_next_packet()
71 	} else if (ctx->rx_len == 0) {  in spi_mcux_transfer_next_packet()
73 		transfer.txData = (uint8_t *) ctx->tx_buf;  in spi_mcux_transfer_next_packet()
75 		transfer.dataSize = ctx->tx_len;  in spi_mcux_transfer_next_packet()
76 	} else if (ctx->tx_len == ctx->rx_len) {  in spi_mcux_transfer_next_packet()
78 		transfer.txData = (uint8_t *) ctx->tx_buf;  in spi_mcux_transfer_next_packet()
79 		transfer.rxData = ctx->rx_buf;  in spi_mcux_transfer_next_packet()
80 		transfer.dataSize = ctx->tx_len;  in spi_mcux_transfer_next_packet()
81 	} else if (ctx->tx_len > ctx->rx_len) {  in spi_mcux_transfer_next_packet()
86 		transfer.txData = (uint8_t *) ctx->tx_buf;  in spi_mcux_transfer_next_packet()
87 		transfer.rxData = ctx->rx_buf;  in spi_mcux_transfer_next_packet()
88 		transfer.dataSize = ctx->rx_len;  in spi_mcux_transfer_next_packet()
95 		transfer.txData = (uint8_t *) ctx->tx_buf;  in spi_mcux_transfer_next_packet()
96 		transfer.rxData = ctx->rx_buf;  in spi_mcux_transfer_next_packet()
97 		transfer.dataSize = ctx->tx_len;  in spi_mcux_transfer_next_packet()
101 	if (!(ctx->tx_count <= 1 && ctx->rx_count <= 1)) {  in spi_mcux_transfer_next_packet()
105 	data->transfer_len = transfer.dataSize;  in spi_mcux_transfer_next_packet()
106 	status = LPSPI_MasterTransferNonBlocking(base, &data->handle,  in spi_mcux_transfer_next_packet()
115 	const struct spi_mcux_config *config = dev->config;  in spi_mcux_isr()
116 	struct spi_mcux_data *data = dev->data;  in spi_mcux_isr()
117 	LPSPI_Type *base = config->base;  in spi_mcux_isr()
119 	LPSPI_MasterTransferHandleIRQ(base, &data->handle);  in spi_mcux_isr()
128 	spi_context_update_tx(&data->ctx, 1, data->transfer_len);  in spi_mcux_master_transfer_callback()
129 	spi_context_update_rx(&data->ctx, 1, data->transfer_len);  in spi_mcux_master_transfer_callback()
131 	spi_mcux_transfer_next_packet(data->dev);  in spi_mcux_master_transfer_callback()
137 	const struct spi_mcux_config *config = dev->config;  in spi_mcux_configure()
138 	struct spi_mcux_data *data = dev->data;  in spi_mcux_configure()
139 	LPSPI_Type *base = config->base;  in spi_mcux_configure()
144 	if (spi_context_configured(&data->ctx, spi_cfg)) {  in spi_mcux_configure()
149 	if (spi_cfg->operation & SPI_HALF_DUPLEX) {  in spi_mcux_configure()
150 		LOG_ERR("Half-duplex not supported");  in spi_mcux_configure()
151 		return -ENOTSUP;  in spi_mcux_configure()
156 	if (spi_cfg->slave > CHIP_SELECT_COUNT) {  in spi_mcux_configure()
158 			    spi_cfg->slave,  in spi_mcux_configure()
160 		return -EINVAL;  in spi_mcux_configure()
163 	word_size = SPI_WORD_SIZE_GET(spi_cfg->operation);  in spi_mcux_configure()
167 		return -EINVAL;  in spi_mcux_configure()
173 		(SPI_MODE_GET(spi_cfg->operation) & SPI_MODE_CPOL)  in spi_mcux_configure()
178 		(SPI_MODE_GET(spi_cfg->operation) & SPI_MODE_CPHA)  in spi_mcux_configure()
183 		(spi_cfg->operation & SPI_TRANSFER_LSB)  in spi_mcux_configure()
187 	master_config.baudRate = spi_cfg->frequency;  in spi_mcux_configure()
189 	if (!device_is_ready(config->clock_dev)) {  in spi_mcux_configure()
191 		return -ENODEV;  in spi_mcux_configure()
194 	if (clock_control_get_rate(config->clock_dev, config->clock_subsys,  in spi_mcux_configure()
196 		return -EINVAL;  in spi_mcux_configure()
201 	LPSPI_MasterTransferCreateHandle(base, &data->handle,  in spi_mcux_configure()
207 	data->ctx.config = spi_cfg;  in spi_mcux_configure()
220 	struct spi_mcux_data *data = dev->data;  in transceive()
223 	spi_context_lock(&data->ctx, asynchronous, cb, userdata, spi_cfg);  in transceive()
230 	spi_context_buffers_setup(&data->ctx, tx_bufs, rx_bufs, 1);  in transceive()
232 	spi_context_cs_control(&data->ctx, true);  in transceive()
236 	ret = spi_context_wait_for_completion(&data->ctx);  in transceive()
238 	spi_context_release(&data->ctx, ret);  in transceive()
266 	struct spi_mcux_data *data = dev->data;  in spi_mcux_release()
268 	spi_context_unlock_unconditionally(&data->ctx);  in spi_mcux_release()
276 	const struct spi_mcux_config *config = dev->config;  in spi_mcux_init()
277 	struct spi_mcux_data *data = dev->data;  in spi_mcux_init()
279 	CLOCK_SetIpSrc(config->clock_ip_name, config->clock_ip_src);  in spi_mcux_init()
281 	config->irq_config_func(dev);  in spi_mcux_init()
283 	data->dev = dev;  in spi_mcux_init()
285 	err = spi_context_cs_configure_all(&data->ctx);  in spi_mcux_init()
290 	err = pinctrl_apply_state(config->pincfg, PINCTRL_STATE_DEFAULT);  in spi_mcux_init()
295 	spi_context_unlock_unconditionally(&data->ctx);  in spi_mcux_init()
300 static DEVICE_API(spi, spi_mcux_driver_api) = {