4  * SPDX-License-Identifier: Apache-2.0
18 	uint32_t conf;  member
22 	uint32_t tx;  member
35 #define SPI_DATA(dev) ((struct data *) ((dev)->data))
48 	if (config->slave != 0) {  in spi_config()
50 		return -ENOTSUP;  in spi_config()
53 	if (SPI_WORD_SIZE_GET(config->operation) != 8) {  in spi_config()
55 		return -ENOTSUP;  in spi_config()
58 	if (config->operation & SPI_CS_ACTIVE_HIGH) {  in spi_config()
60 		return -ENOTSUP;  in spi_config()
63 	if (config->operation & SPI_LOCK_ON) {  in spi_config()
65 		return -ENOTSUP;  in spi_config()
68 	if ((config->operation & SPI_LINES_MASK) != SPI_LINES_SINGLE) {  in spi_config()
70 		return -ENOTSUP;  in spi_config()
73 	if (config->operation & SPI_TRANSFER_LSB) {  in spi_config()
75 		return -ENOTSUP;  in spi_config()
78 	if (config->operation & (SPI_MODE_CPOL | SPI_MODE_CPHA)) {  in spi_config()
80 		return -ENOTSUP;  in spi_config()
83 	if (config->operation & SPI_OP_MODE_SLAVE) {  in spi_config()
85 		return -ENOTSUP;  in spi_config()
88 	if (config->operation & SPI_MODE_LOOP) {  in spi_config()
90 		return -ENOTSUP;  in spi_config()
93 	ctx->config = config;  in spi_config()
103 	const struct cfg *const cfg = dev->config;  in transceive()
104 	volatile struct spimctrl_regs *const regs = cfg->regs;  in transceive()
105 	struct spi_context *ctx = &SPI_DATA(dev)->ctx;  in transceive()
120 	regs->ctrl |= (CTRL_USRC | CTRL_IEN);  in transceive()
121 	regs->ctrl &= ~CTRL_CSN;  in transceive()
124 		txval = *ctx->tx_buf;  in transceive()
130 	regs->tx = txval;  in transceive()
134 	regs->ctrl |= CTRL_CSN;  in transceive()
135 	regs->ctrl &= ~CTRL_USRC;  in transceive()
148 	return -ENOTSUP;  in transceive_async()
154 	spi_context_unlock_unconditionally(&SPI_DATA(dev)->ctx);  in release()
160 	const struct cfg *const cfg = dev->config;  in spim_isr()
161 	volatile struct spimctrl_regs *const regs = cfg->regs;  in spim_isr()
162 	struct spi_context *ctx = &SPI_DATA(dev)->ctx;  in spim_isr()
166 	if ((regs->stat & STAT_DONE) == 0) {  in spim_isr()
170 	regs->stat = STAT_DONE;  in spim_isr()
173 	rx_byte = regs->rx;  in spim_isr()
175 		*ctx->rx_buf = rx_byte;  in spim_isr()
180 		regs->ctrl &= ~CTRL_IEN;  in spim_isr()
187 		val = *ctx->tx_buf;  in spim_isr()
190 	regs->tx = val;  in spim_isr()
195 	const struct cfg *const cfg = dev->config;  in init()
196 	volatile struct spimctrl_regs *const regs = cfg->regs;  in init()
198 	regs->ctrl = CTRL_CSN;  in init()
199 	while (regs->stat & STAT_BUSY) {  in init()
202 	regs->stat = STAT_DONE;  in init()
205 		cfg->interrupt,  in init()
211 	irq_enable(cfg->interrupt);  in init()
213 	spi_context_unlock_unconditionally(&SPI_DATA(dev)->ctx);  in init()