4  * SPDX-License-Identifier: Apache-2.0
15 #include <zephyr/drivers/spi.h>
16 #include <zephyr/drivers/spi/rtio.h>
56 	const struct spi_mcux_config *config = dev->config;  in spi_mcux_transfer_next_packet()
57 	struct spi_mcux_data *data = dev->data;  in spi_mcux_transfer_next_packet()
58 	ECSPI_Type *base = config->base;  in spi_mcux_transfer_next_packet()
59 	struct spi_context *ctx = &data->ctx;  in spi_mcux_transfer_next_packet()
63 	if ((ctx->tx_len == 0) && (ctx->rx_len == 0)) {  in spi_mcux_transfer_next_packet()
65 		spi_context_cs_control(&data->ctx, false);  in spi_mcux_transfer_next_packet()
66 		spi_context_complete(&data->ctx, dev, 0);  in spi_mcux_transfer_next_packet()
70 	transfer.channel = ctx->config->slave;  in spi_mcux_transfer_next_packet()
73 		transfer.rxData = &data->rx_data;  in spi_mcux_transfer_next_packet()
79 		switch (data->dfs) {  in spi_mcux_transfer_next_packet()
81 			data->tx_data = UNALIGNED_GET((uint8_t *)ctx->tx_buf);  in spi_mcux_transfer_next_packet()
84 			data->tx_data = UNALIGNED_GET((uint16_t *)ctx->tx_buf);  in spi_mcux_transfer_next_packet()
87 			data->tx_data = UNALIGNED_GET((uint32_t *)ctx->tx_buf);  in spi_mcux_transfer_next_packet()
91 		transfer.txData = &data->tx_data;  in spi_mcux_transfer_next_packet()
96 	transfer.dataSize = data->dfs;  in spi_mcux_transfer_next_packet()
98 	status = ECSPI_MasterTransferNonBlocking(base, &data->handle, &transfer);  in spi_mcux_transfer_next_packet()
101 		spi_context_cs_control(&data->ctx, false);  in spi_mcux_transfer_next_packet()
102 		spi_context_complete(&data->ctx, dev, -EIO);  in spi_mcux_transfer_next_packet()
108 	const struct spi_mcux_config *config = dev->config;  in spi_mcux_isr()
109 	struct spi_mcux_data *data = dev->data;  in spi_mcux_isr()
110 	ECSPI_Type *base = config->base;  in spi_mcux_isr()
112 	ECSPI_MasterTransferHandleIRQ(base, &data->handle);  in spi_mcux_isr()
119 	struct spi_mcux_data *data = dev->data;  in spi_mcux_master_transfer_callback()
121 	if (spi_context_rx_buf_on(&data->ctx)) {  in spi_mcux_master_transfer_callback()
122 		switch (data->dfs) {  in spi_mcux_master_transfer_callback()
124 			UNALIGNED_PUT(data->rx_data, (uint8_t *)data->ctx.rx_buf);  in spi_mcux_master_transfer_callback()
127 			UNALIGNED_PUT(data->rx_data, (uint16_t *)data->ctx.rx_buf);  in spi_mcux_master_transfer_callback()
130 			UNALIGNED_PUT(data->rx_data, (uint32_t *)data->ctx.rx_buf);  in spi_mcux_master_transfer_callback()
135 	spi_context_update_tx(&data->ctx, data->dfs, 1);  in spi_mcux_master_transfer_callback()
136 	spi_context_update_rx(&data->ctx, data->dfs, 1);  in spi_mcux_master_transfer_callback()
144 	const struct spi_mcux_config *config = dev->config;  in spi_mcux_configure()
145 	struct spi_mcux_data *data = dev->data;  in spi_mcux_configure()
146 	ECSPI_Type *base = config->base;  in spi_mcux_configure()
151 	if (spi_context_configured(&data->ctx, spi_cfg)) {  in spi_mcux_configure()
156 	if (spi_cfg->operation & SPI_HALF_DUPLEX) {  in spi_mcux_configure()
157 		LOG_ERR("Half-duplex not supported");  in spi_mcux_configure()
158 		return -ENOTSUP;  in spi_mcux_configure()
161 	if (spi_cfg->operation & SPI_TRANSFER_LSB) {  in spi_mcux_configure()
162 		LOG_ERR("HW byte re-ordering not supported");  in spi_mcux_configure()
163 		return -ENOTSUP;  in spi_mcux_configure()
166 	if (spi_cfg->slave > kECSPI_Channel3) {  in spi_mcux_configure()
167 		LOG_ERR("Slave %d is greater than %d", spi_cfg->slave, kECSPI_Channel3);  in spi_mcux_configure()
168 		return -EINVAL;  in spi_mcux_configure()
171 	if (clock_control_get_rate(config->clock_dev, config->clock_subsys, &clock_freq)) {  in spi_mcux_configure()
173 		return -EINVAL;  in spi_mcux_configure()
176 	word_size = SPI_WORD_SIZE_GET(spi_cfg->operation);  in spi_mcux_configure()
179 		return -EINVAL;  in spi_mcux_configure()
184 	master_config.channel = (ecspi_channel_source_t)spi_cfg->slave;  in spi_mcux_configure()
186 		(SPI_MODE_GET(spi_cfg->operation) & SPI_MODE_CPOL)  in spi_mcux_configure()
190 		(SPI_MODE_GET(spi_cfg->operation) & SPI_MODE_CPHA)  in spi_mcux_configure()
193 	master_config.baudRate_Bps = spi_cfg->frequency;  in spi_mcux_configure()
196 	master_config.enableLoopback = (SPI_MODE_GET(spi_cfg->operation) & SPI_MODE_LOOP);  in spi_mcux_configure()
200 			DIV_ROUND_UP(spi_cfg->cs.delay * USEC_PER_SEC, spi_cfg->frequency);  in spi_mcux_configure()
204 			return -EINVAL;  in spi_mcux_configure()
210 	ECSPI_MasterTransferCreateHandle(base, &data->handle,  in spi_mcux_configure()
214 	data->word_size = word_size;  in spi_mcux_configure()
215 	data->dfs = bytes_per_word(word_size);  in spi_mcux_configure()
216 	data->ctx.config = spi_cfg;  in spi_mcux_configure()
229 	struct spi_mcux_data *data = dev->data;  in transceive()
232 	spi_context_lock(&data->ctx, asynchronous, cb, userdata, spi_cfg);  in transceive()
239 	spi_context_buffers_setup(&data->ctx, tx_bufs, rx_bufs, data->dfs);  in transceive()
240 	spi_context_cs_control(&data->ctx, true);  in transceive()
243 	ret = spi_context_wait_for_completion(&data->ctx);  in transceive()
246 	spi_context_release(&data->ctx, ret);  in transceive()
273 	struct spi_mcux_data *data = dev->data;  in spi_mcux_release()
277 	spi_context_unlock_unconditionally(&data->ctx);  in spi_mcux_release()
285 	const struct spi_mcux_config *config = dev->config;  in spi_mcux_init()
286 	struct spi_mcux_data *data = dev->data;  in spi_mcux_init()
288 	config->irq_config_func(dev);  in spi_mcux_init()
290 	ret = spi_context_cs_configure_all(&data->ctx);  in spi_mcux_init()
295 	ret = pinctrl_apply_state(config->pincfg, PINCTRL_STATE_DEFAULT);  in spi_mcux_init()
300 	spi_context_unlock_unconditionally(&data->ctx);  in spi_mcux_init()
305 static DEVICE_API(spi, spi_mcux_driver_api) = {