3  * SPDX-License-Identifier: Apache-2.0
48 	/* TX */
59 	struct device *dev = (struct device *)p_args->p_context;  in spi_cb()
60 	struct ra_spi_data *data = dev->data;  in spi_cb()
62 	switch (p_args->event) {  in spi_cb()
64 		spi_context_cs_control(&data->ctx, false);  in spi_cb()
65 		spi_context_complete(&data->ctx, dev, 0);  in spi_cb()
73 		spi_context_cs_control(&data->ctx, false);  in spi_cb()
74 		spi_context_complete(&data->ctx, dev, -EIO);  in spi_cb()
83 	struct ra_spi_data *data = dev->data;  in ra_spi_configure()
86 	if (spi_context_configured(&data->ctx, config)) {  in ra_spi_configure()
91 	if (data->spi.open != 0) {  in ra_spi_configure()
92 		R_SPI_Close(&data->spi);  in ra_spi_configure()
95 	if ((config->operation & SPI_FRAME_FORMAT_TI) == SPI_FRAME_FORMAT_TI) {  in ra_spi_configure()
96 		return -ENOTSUP;  in ra_spi_configure()
99 	if (config->operation & SPI_OP_MODE_SLAVE) {  in ra_spi_configure()
100 		data->fsp_config.operating_mode = SPI_MODE_SLAVE;  in ra_spi_configure()
102 		data->fsp_config.operating_mode = SPI_MODE_MASTER;  in ra_spi_configure()
105 	if (SPI_MODE_GET(config->operation) & SPI_MODE_CPOL) {  in ra_spi_configure()
106 		data->fsp_config.clk_polarity = SPI_CLK_POLARITY_HIGH;  in ra_spi_configure()
108 		data->fsp_config.clk_polarity = SPI_CLK_POLARITY_LOW;  in ra_spi_configure()
111 	if (SPI_MODE_GET(config->operation) & SPI_MODE_CPHA) {  in ra_spi_configure()
112 		data->fsp_config.clk_phase = SPI_CLK_PHASE_EDGE_EVEN;  in ra_spi_configure()
114 		if (data->fsp_config.operating_mode == SPI_MODE_MASTER) {  in ra_spi_configure()
115 			data->fsp_config.clk_phase = SPI_CLK_PHASE_EDGE_ODD;  in ra_spi_configure()
118 			return -EINVAL;  in ra_spi_configure()
122 	if (config->operation & SPI_TRANSFER_LSB) {  in ra_spi_configure()
123 		data->fsp_config.bit_order = SPI_BIT_ORDER_LSB_FIRST;  in ra_spi_configure()
125 		data->fsp_config.bit_order = SPI_BIT_ORDER_MSB_FIRST;  in ra_spi_configure()
128 	if (config->operation & SPI_CS_ACTIVE_HIGH) {  in ra_spi_configure()
129 		data->fsp_config_extend.ssl_polarity = SPI_SSLP_HIGH;  in ra_spi_configure()
131 		data->fsp_config_extend.ssl_polarity = SPI_SSLP_LOW;  in ra_spi_configure()
134 	if (!(config->operation & SPI_OP_MODE_SLAVE)) {  in ra_spi_configure()
135 		LOG_INF("frequency: %d", config->frequency);  in ra_spi_configure()
136 		fsp_err = R_SPI_CalculateBitrate(config->frequency,  in ra_spi_configure()
137 						 &data->fsp_config_extend.spck_div);  in ra_spi_configure()
140 			return -EIO;  in ra_spi_configure()
144 	data->fsp_config_extend.spi_comm = SPI_COMMUNICATION_FULL_DUPLEX;  in ra_spi_configure()
146 		data->fsp_config_extend.spi_clksyn = SPI_SSL_MODE_CLK_SYN;  in ra_spi_configure()
148 		data->fsp_config_extend.spi_clksyn = SPI_SSL_MODE_SPI;  in ra_spi_configure()
149 		data->fsp_config_extend.ssl_select = SPI_SSL_SELECT_SSL0;  in ra_spi_configure()
152 	data->fsp_config.p_extend = &data->fsp_config_extend;  in ra_spi_configure()
154 	data->fsp_config.p_callback = spi_cb;  in ra_spi_configure()
155 	data->fsp_config.p_context = dev;  in ra_spi_configure()
156 	fsp_err = R_SPI_Open(&data->spi, &data->fsp_config);  in ra_spi_configure()
159 		return -EIO;  in ra_spi_configure()
161 	data->ctx.config = config;  in ra_spi_configure()
169 	return (spi_context_tx_on(&data->ctx) || spi_context_rx_on(&data->ctx));  in ra_spi_transfer_ongoing()
171 	if (spi_context_total_tx_len(&data->ctx) < spi_context_total_rx_len(&data->ctx)) {  in ra_spi_transfer_ongoing()
172 		return (spi_context_tx_on(&data->ctx) || spi_context_rx_on(&data->ctx));  in ra_spi_transfer_ongoing()
174 		return (spi_context_tx_on(&data->ctx) && spi_context_rx_on(&data->ctx));  in ra_spi_transfer_ongoing()
182 	R_SPI0_Type *p_spi_reg = data->spi.p_regs;  in ra_spi_transceive_slave()
184 		(spi_bit_width_t)(SPI_WORD_SIZE_GET(data->ctx.config->operation) - 1);  in ra_spi_transceive_slave()
186 	if (p_spi_reg->SPSR_b.SPTEF && spi_context_tx_buf_on(&data->ctx)) {  in ra_spi_transceive_slave()
187 		uint32_t tx;  in ra_spi_transceive_slave()  local
189 		if (data->ctx.tx_buf != NULL) {  in ra_spi_transceive_slave()
190 			if (data->dfs > 2) {  in ra_spi_transceive_slave()
191 				tx = *(uint32_t *)(data->ctx.tx_buf);  in ra_spi_transceive_slave()
192 			} else if (data->dfs > 1) {  in ra_spi_transceive_slave()
193 				tx = *(uint16_t *)(data->ctx.tx_buf);  in ra_spi_transceive_slave()
195 				tx = *(uint8_t *)(data->ctx.tx_buf);  in ra_spi_transceive_slave()
198 			tx = 0;  in ra_spi_transceive_slave()
203 			p_spi_reg->SPDR = (uint32_t)tx;  in ra_spi_transceive_slave()
205 			p_spi_reg->SPDR_BY = (uint8_t)tx;  in ra_spi_transceive_slave()
207 			p_spi_reg->SPDR_HA = (uint16_t)tx;  in ra_spi_transceive_slave()
210 		spi_context_update_tx(&data->ctx, data->dfs, 1);  in ra_spi_transceive_slave()
212 		p_spi_reg->SPCR_b.SPTIE = 0;  in ra_spi_transceive_slave()
215 	if (p_spi_reg->SPSR_b.SPRF && spi_context_rx_buf_on(&data->ctx)) {  in ra_spi_transceive_slave()
220 			rx = (uint32_t)p_spi_reg->SPDR;  in ra_spi_transceive_slave()
222 			rx = (uint8_t)p_spi_reg->SPDR_BY;  in ra_spi_transceive_slave()
224 			rx = (uint16_t)p_spi_reg->SPDR_HA;  in ra_spi_transceive_slave()
227 		if (data->dfs > 2) {  in ra_spi_transceive_slave()
228 			UNALIGNED_PUT(rx, (uint32_t *)data->ctx.rx_buf);  in ra_spi_transceive_slave()
229 		} else if (data->dfs > 1) {  in ra_spi_transceive_slave()
230 			UNALIGNED_PUT(rx, (uint16_t *)data->ctx.rx_buf);  in ra_spi_transceive_slave()
232 			UNALIGNED_PUT(rx, (uint8_t *)data->ctx.rx_buf);  in ra_spi_transceive_slave()
234 		spi_context_update_rx(&data->ctx, data->dfs, 1);  in ra_spi_transceive_slave()
242 	R_SPI0_Type *p_spi_reg = data->spi.p_regs;  in ra_spi_transceive_master()
244 		(spi_bit_width_t)(SPI_WORD_SIZE_GET(data->ctx.config->operation) - 1);  in ra_spi_transceive_master()
245 	uint32_t tx;  in ra_spi_transceive_master()  local
248 	/* Tx transfer */  in ra_spi_transceive_master()
249 	if (spi_context_tx_buf_on(&data->ctx)) {  in ra_spi_transceive_master()
250 		if (data->dfs > 2) {  in ra_spi_transceive_master()
251 			tx = *(uint32_t *)(data->ctx.tx_buf);  in ra_spi_transceive_master()
252 		} else if (data->dfs > 1) {  in ra_spi_transceive_master()
253 			tx = *(uint16_t *)(data->ctx.tx_buf);  in ra_spi_transceive_master()
255 			tx = *(uint8_t *)(data->ctx.tx_buf);  in ra_spi_transceive_master()
258 		tx = 0U;  in ra_spi_transceive_master()
261 	while (!p_spi_reg->SPSR_b.SPTEF) {  in ra_spi_transceive_master()
266 		p_spi_reg->SPDR = (uint32_t)tx;  in ra_spi_transceive_master()
268 		p_spi_reg->SPDR_BY = (uint8_t)tx;  in ra_spi_transceive_master()
270 		p_spi_reg->SPDR_HA = (uint16_t)tx;  in ra_spi_transceive_master()
273 	spi_context_update_tx(&data->ctx, data->dfs, 1);  in ra_spi_transceive_master()
275 	if (p_spi_reg->SPCR_b.TXMD == 0x0) {  in ra_spi_transceive_master()
276 		while (!p_spi_reg->SPSR_b.SPRF) {  in ra_spi_transceive_master()
281 			rx = (uint32_t)p_spi_reg->SPDR;  in ra_spi_transceive_master()
283 			rx = (uint8_t)p_spi_reg->SPDR_BY;  in ra_spi_transceive_master()
285 			rx = (uint16_t)p_spi_reg->SPDR_HA;  in ra_spi_transceive_master()
288 		if (spi_context_rx_buf_on(&data->ctx)) {  in ra_spi_transceive_master()
289 			if (data->dfs > 2) {  in ra_spi_transceive_master()
290 				UNALIGNED_PUT(rx, (uint32_t *)data->ctx.rx_buf);  in ra_spi_transceive_master()
291 			} else if (data->dfs > 1) {  in ra_spi_transceive_master()
292 				UNALIGNED_PUT(rx, (uint16_t *)data->ctx.rx_buf);  in ra_spi_transceive_master()
294 				UNALIGNED_PUT(rx, (uint8_t *)data->ctx.rx_buf);  in ra_spi_transceive_master()
297 		spi_context_update_rx(&data->ctx, data->dfs, 1);  in ra_spi_transceive_master()
306 	uint16_t operation = data->ctx.config->operation;  in ra_spi_transceive_data()
322 	struct ra_spi_data *data = dev->data;  in transceive()
332 		return -ENOTSUP;  in transceive()
336 	spi_context_lock(&data->ctx, asynchronous, cb, userdata, config);  in transceive()
342 	data->dfs = ((SPI_WORD_SIZE_GET(config->operation) - 1) / 8) + 1;  in transceive()
343 	p_spi_reg = data->spi.p_regs;  in transceive()
345 		(spi_bit_width_t)(SPI_WORD_SIZE_GET(data->ctx.config->operation) - 1);  in transceive()
347 	spi_context_buffers_setup(&data->ctx, tx_bufs, rx_bufs, data->dfs);  in transceive()
349 	spi_context_cs_control(&data->ctx, true);  in transceive()
352 	if (data->ctx.rx_len == 0) {  in transceive()
353 		data->data_len = spi_context_is_slave(&data->ctx)  in transceive()
354 					 ? spi_context_total_tx_len(&data->ctx)  in transceive()
355 					 : data->ctx.tx_len;  in transceive()
356 	} else if (data->ctx.tx_len == 0) {  in transceive()
357 		data->data_len = spi_context_is_slave(&data->ctx)  in transceive()
358 					 ? spi_context_total_rx_len(&data->ctx)  in transceive()
359 					 : data->ctx.rx_len;  in transceive()
361 		data->data_len = spi_context_is_slave(&data->ctx)  in transceive()
362 					 ? MAX(spi_context_total_tx_len(&data->ctx),  in transceive()
363 					       spi_context_total_rx_len(&data->ctx))  in transceive()
364 					 : MIN(data->ctx.tx_len, data->ctx.rx_len);  in transceive()
367 	if (data->ctx.rx_buf == NULL) {  in transceive()
368 		R_SPI_Write(&data->spi, data->ctx.tx_buf, data->data_len, spi_width);  in transceive()
369 	} else if (data->ctx.tx_buf == NULL) {  in transceive()
370 		R_SPI_Read(&data->spi, data->ctx.rx_buf, data->data_len, spi_width);  in transceive()
372 		R_SPI_WriteRead(&data->spi, data->ctx.tx_buf, data->ctx.rx_buf, data->data_len,  in transceive()
376 	ret = spi_context_wait_for_completion(&data->ctx);  in transceive()
379 	p_spi_reg->SPCR_b.TXMD = (0x0);  in transceive()
380 	if (!spi_context_tx_on(&data->ctx)) {  in transceive()
381 		p_spi_reg->SPCR_b.TXMD = 0x0;  in transceive()
383 	if (!spi_context_rx_on(&data->ctx)) {  in transceive()
384 		p_spi_reg->SPCR_b.TXMD = 0x1; /* tx only */  in transceive()
387 	uint32_t spdcr = p_spi_reg->SPDCR;  in transceive()
394 		/* Set SPBYT so 8bit transfer works with the DTC/DMAC. */  in transceive()
397 		/* Configure Half-Word access to data register. */  in transceive()
405 		bit_width = ((bit_width + 1) >> 2) - 5;  in transceive()
407 	p_spi_reg->SPDCR = (uint8_t)spdcr;  in transceive()
408 	p_spi_reg->SPCMD[0] |= bit_width << 8;  in transceive()
411 	p_spi_reg->SPCR |= R_SPI0_SPCR_SPE_Msk;  in transceive()
418 	while (p_spi_reg->SPSR_b.IDLNF) {  in transceive()
421 	p_spi_reg->SPCR_b.SPE = 0;  in transceive()
423 	spi_context_cs_control(&data->ctx, false);  in transceive()
424 	spi_context_complete(&data->ctx, dev, 0);  in transceive()
427 	if (spi_context_is_slave(&data->ctx) && !ret) {  in transceive()
428 		ret = data->ctx.recv_frames;  in transceive()
433 	spi_context_release(&data->ctx, ret);  in transceive()
456 	struct ra_spi_data *data = dev->data;  in ra_spi_release()
458 	spi_context_unlock_unconditionally(&data->ctx);  in ra_spi_release()
471 	const struct ra_spi_config *config = dev->config;  in spi_ra_init()
472 	struct ra_spi_data *data = dev->data;  in spi_ra_init()
476 	ret = pinctrl_apply_state(config->pcfg, PINCTRL_STATE_DEFAULT);  in spi_ra_init()
481 	ret = spi_context_cs_configure_all(&data->ctx);  in spi_ra_init()
486 	spi_context_unlock_unconditionally(&data->ctx);  in spi_ra_init()
496 		(spi_bit_width_t)(SPI_WORD_SIZE_GET(data->ctx.config->operation) - 1);  in ra_spi_retransmit()
498 	if (data->ctx.rx_len == 0) {  in ra_spi_retransmit()
499 		data->data_len = data->ctx.tx_len;  in ra_spi_retransmit()
500 		data->spi.p_tx_data = data->ctx.tx_buf;  in ra_spi_retransmit()
501 		data->spi.p_rx_data = NULL;  in ra_spi_retransmit()
502 	} else if (data->ctx.tx_len == 0) {  in ra_spi_retransmit()
503 		data->data_len = data->ctx.rx_len;  in ra_spi_retransmit()
504 		data->spi.p_tx_data = NULL;  in ra_spi_retransmit()
505 		data->spi.p_rx_data = data->ctx.rx_buf;  in ra_spi_retransmit()
507 		data->data_len = MIN(data->ctx.tx_len, data->ctx.rx_len);  in ra_spi_retransmit()
508 		data->spi.p_tx_data = data->ctx.tx_buf;  in ra_spi_retransmit()
509 		data->spi.p_rx_data = data->ctx.rx_buf;  in ra_spi_retransmit()
512 	data->spi.bit_width = spi_width;  in ra_spi_retransmit()
513 	data->spi.rx_count = 0;  in ra_spi_retransmit()
514 	data->spi.tx_count = 0;  in ra_spi_retransmit()
515 	data->spi.count = data->data_len;  in ra_spi_retransmit()
518 	/* Determine DTC transfer size */  in ra_spi_retransmit()
529 	if (data->spi.p_cfg->p_transfer_rx) {  in ra_spi_retransmit()
531 		data->spi.rx_count = data->data_len;  in ra_spi_retransmit()
534 			(transfer_instance_t *)data->spi.p_cfg->p_transfer_rx;  in ra_spi_retransmit()
535 		transfer_info_t *p_info = p_transfer_rx->p_cfg->p_info;  in ra_spi_retransmit()
538 		p_info->transfer_settings_word_b.size = size;  in ra_spi_retransmit()
539 		p_info->length = (uint16_t)data->data_len;  in ra_spi_retransmit()
540 		p_info->transfer_settings_word_b.dest_addr_mode = TRANSFER_ADDR_MODE_INCREMENTED;  in ra_spi_retransmit()
541 		p_info->p_dest = data->ctx.rx_buf;  in ra_spi_retransmit()
543 		if (NULL == data->ctx.rx_buf) {  in ra_spi_retransmit()
546 			p_info->transfer_settings_word_b.dest_addr_mode = TRANSFER_ADDR_MODE_FIXED;  in ra_spi_retransmit()
547 			p_info->p_dest = &dummy_rx;  in ra_spi_retransmit()
550 		p_transfer_rx->p_api->reconfigure(p_transfer_rx->p_ctrl, p_info);  in ra_spi_retransmit()
553 	if (data->spi.p_cfg->p_transfer_tx) {  in ra_spi_retransmit()
555 		data->spi.tx_count = data->data_len;  in ra_spi_retransmit()
558 			(transfer_instance_t *)data->spi.p_cfg->p_transfer_tx;  in ra_spi_retransmit()
559 		transfer_info_t *p_info = p_transfer_tx->p_cfg->p_info;  in ra_spi_retransmit()
562 		p_info->transfer_settings_word_b.size = size;  in ra_spi_retransmit()
563 		p_info->length = (uint16_t)data->data_len;  in ra_spi_retransmit()
564 		p_info->transfer_settings_word_b.src_addr_mode = TRANSFER_ADDR_MODE_INCREMENTED;  in ra_spi_retransmit()
565 		p_info->p_src = data->ctx.tx_buf;  in ra_spi_retransmit()
567 		if (NULL == data->ctx.tx_buf) {  in ra_spi_retransmit()
570 			p_info->transfer_settings_word_b.src_addr_mode = TRANSFER_ADDR_MODE_FIXED;  in ra_spi_retransmit()
571 			p_info->p_src = &dummy_tx;  in ra_spi_retransmit()
573 		R_SPI0_Type *p_spi_reg = data->spi.p_regs;  in ra_spi_retransmit()
575 		p_transfer_tx->p_api->reconfigure(p_transfer_tx->p_ctrl, p_info);  in ra_spi_retransmit()
578 		p_spi_reg->SPCR |= R_SPI0_SPCR_SPE_Msk;  in ra_spi_retransmit()
590 	struct ra_spi_data *data = dev->data;  in ra_spi_rxi_isr()
594 	if (spi_context_is_slave(&data->ctx) && data->spi.rx_count == data->spi.count) {  in ra_spi_rxi_isr()
595 		if (data->ctx.rx_buf != NULL && data->ctx.tx_buf != NULL) {  in ra_spi_rxi_isr()
596 			data->ctx.recv_frames = MIN(spi_context_total_tx_len(&data->ctx),  in ra_spi_rxi_isr()
597 						    spi_context_total_rx_len(&data->ctx));  in ra_spi_rxi_isr()
598 		} else if (data->ctx.tx_buf == NULL) {  in ra_spi_rxi_isr()
599 			data->ctx.recv_frames = data->data_len;  in ra_spi_rxi_isr()
601 		R_BSP_IrqDisable(data->fsp_config.tei_irq);  in ra_spi_rxi_isr()
606 		R_BSP_IrqDisable(data->fsp_config.txi_irq);  in ra_spi_rxi_isr()
609 		data->spi.p_regs->SPCR_b.SPE = 0;  in ra_spi_rxi_isr()
611 		/* Re-enable the TXI IRQ and clear the pending IRQ. */  in ra_spi_rxi_isr()
612 		R_BSP_IrqEnable(data->fsp_config.txi_irq);  in ra_spi_rxi_isr()
614 		spi_context_cs_control(&data->ctx, false);  in ra_spi_rxi_isr()
615 		spi_context_complete(&data->ctx, dev, 0);  in ra_spi_rxi_isr()
629 	struct ra_spi_data *data = dev->data;  in ra_spi_tei_isr()
630 	R_SPI0_Type *p_spi_reg = data->spi.p_regs;  in ra_spi_tei_isr()
632 	if (data->spi.rx_count == data->spi.count) {  in ra_spi_tei_isr()
633 		spi_context_update_rx(&data->ctx, 1, data->data_len);  in ra_spi_tei_isr()
635 	if (data->spi.tx_count == data->spi.count) {  in ra_spi_tei_isr()
636 		spi_context_update_tx(&data->ctx, 1, data->data_len);  in ra_spi_tei_isr()
640 		R_BSP_IrqDisable(data->spi.p_cfg->txi_irq);  in ra_spi_tei_isr()
642 		p_spi_reg->SPCR_b.SPE = 0U;  in ra_spi_tei_isr()
644 		p_spi_reg->SPSR;  in ra_spi_tei_isr()
645 		p_spi_reg->SPSR = 0;  in ra_spi_tei_isr()
646 		R_BSP_IrqEnable(data->spi.p_cfg->txi_irq);  in ra_spi_tei_isr()
650 		p_spi_reg->SPCR |= R_SPI0_SPCR_SPE_Msk;  in ra_spi_tei_isr()
653 		R_ICU->IELSR_b[data->fsp_config.tei_irq].IR = 0U;  in ra_spi_tei_isr()
683 		R_ICU->IELSR[DT_INST_IRQ_BY_NAME(index, rxi, irq)] =                               \
685 		R_ICU->IELSR[DT_INST_IRQ_BY_NAME(index, txi, irq)] =                               \
687 		R_ICU->IELSR[DT_INST_IRQ_BY_NAME(index, tei, irq)] =                               \
689 		R_ICU->IELSR[DT_INST_IRQ_BY_NAME(index, eri, irq)] =                               \