2  * Copyright (c) 2016-2017, Texas Instruments Incorporated
4  * SPDX-License-Identifier: Apache-2.0
9 #include <zephyr/kernel.h>
10 #include <zephyr/arch/cpu.h>
11 #include <zephyr/drivers/uart.h>
12 #include <zephyr/drivers/pinctrl.h>
20 #include <zephyr/irq.h>
23 	unsigned long base;  member
49  *  However, the Zephyr console driver, and the Zephyr uart sample test, assume
56 	const struct uart_cc32xx_dev_config *config = dev->config;  in uart_cc32xx_init()
57 	const struct uart_cc32xx_dev_data_t *data = dev->data;  in uart_cc32xx_init()
60 	MAP_PRCMPeripheralClkEnable(data->prcm,  in uart_cc32xx_init()
63 	MAP_PRCMPeripheralReset(data->prcm);  in uart_cc32xx_init()
65 	ret = pinctrl_apply_state(config->pcfg, PINCTRL_STATE_DEFAULT);  in uart_cc32xx_init()
71 	MAP_UARTConfigSetExpClk(config->base,  in uart_cc32xx_init()
72 				MAP_PRCMPeripheralClockGet(data->prcm),  in uart_cc32xx_init()
73 				data->baud_rate,  in uart_cc32xx_init()
76 	MAP_UARTFlowControlSet(config->base, UART_FLOWCONTROL_NONE);  in uart_cc32xx_init()
77 	/* Re-disable the FIFOs: */  in uart_cc32xx_init()
78 	MAP_UARTFIFODisable(config->base);  in uart_cc32xx_init()
82 	MAP_UARTIntClear(config->base, UART_INT_RX);  in uart_cc32xx_init()
84 	config->irq_config_func(dev);  in uart_cc32xx_init()
86 	/* Fill the tx fifo, so Zephyr console & shell subsystems get "primed"  in uart_cc32xx_init()
90 	MAP_UARTCharPutNonBlocking(config->base, PRIME_CHAR);  in uart_cc32xx_init()
97 	const struct uart_cc32xx_dev_config *config = dev->config;  in uart_cc32xx_poll_in()
99 	if (MAP_UARTCharsAvail(config->base)) {  in uart_cc32xx_poll_in()
100 		*c = MAP_UARTCharGetNonBlocking(config->base);  in uart_cc32xx_poll_in()
102 		return (-1);  in uart_cc32xx_poll_in()
109 	const struct uart_cc32xx_dev_config *config = dev->config;  in uart_cc32xx_poll_out()
111 	MAP_UARTCharPut(config->base, c);  in uart_cc32xx_poll_out()
116 	const struct uart_cc32xx_dev_config *config = dev->config;  in uart_cc32xx_err_check()
120 	cc32xx_errs = MAP_UARTRxErrorGet(config->base);  in uart_cc32xx_err_check()
122 	/* Map cc32xx SDK uart.h defines to zephyr uart.h defines */  in uart_cc32xx_err_check()
129 	MAP_UARTRxErrorClear(config->base);  in uart_cc32xx_err_check()
140 	const struct uart_cc32xx_dev_config *config = dev->config;  in uart_cc32xx_fifo_fill()
143 	while ((size - num_tx) > 0) {  in uart_cc32xx_fifo_fill()
145 		if (MAP_UARTCharPutNonBlocking(config->base, tx_data[num_tx])) {  in uart_cc32xx_fifo_fill()
158 	const struct uart_cc32xx_dev_config *config = dev->config;  in uart_cc32xx_fifo_read()
161 	while (((size - num_rx) > 0) &&  in uart_cc32xx_fifo_read()
162 		MAP_UARTCharsAvail(config->base)) {  in uart_cc32xx_fifo_read()
166 			MAP_UARTCharGetNonBlocking(config->base);  in uart_cc32xx_fifo_read()
174 	const struct uart_cc32xx_dev_config *config = dev->config;  in uart_cc32xx_irq_tx_enable()
176 	MAP_UARTIntEnable(config->base, UART_INT_TX);  in uart_cc32xx_irq_tx_enable()
181 	const struct uart_cc32xx_dev_config *config = dev->config;  in uart_cc32xx_irq_tx_disable()
183 	MAP_UARTIntDisable(config->base, UART_INT_TX);  in uart_cc32xx_irq_tx_disable()
188 	const struct uart_cc32xx_dev_config *config = dev->config;  in uart_cc32xx_irq_tx_ready()
191 	int_status = MAP_UARTIntStatus(config->base, 1);  in uart_cc32xx_irq_tx_ready()
198 	const struct uart_cc32xx_dev_config *config = dev->config;  in uart_cc32xx_irq_rx_enable()
201 	MAP_UARTIntEnable(config->base, UART_INT_RX);  in uart_cc32xx_irq_rx_enable()
206 	const struct uart_cc32xx_dev_config *config = dev->config;  in uart_cc32xx_irq_rx_disable()
208 	MAP_UARTIntDisable(config->base, UART_INT_RX);  in uart_cc32xx_irq_rx_disable()
213 	const struct uart_cc32xx_dev_config *config = dev->config;  in uart_cc32xx_irq_tx_complete()
215 	return (!MAP_UARTBusy(config->base));  in uart_cc32xx_irq_tx_complete()
220 	const struct uart_cc32xx_dev_config *config = dev->config;  in uart_cc32xx_irq_rx_ready()
223 	int_status = MAP_UARTIntStatus(config->base, 1);  in uart_cc32xx_irq_rx_ready()
230 	/* Not yet used in zephyr */  in uart_cc32xx_irq_err_enable()
235 	/* Not yet used in zephyr */  in uart_cc32xx_irq_err_disable()
240 	const struct uart_cc32xx_dev_config *config = dev->config;  in uart_cc32xx_irq_is_pending()
243 	int_status = MAP_UARTIntStatus(config->base, 1);  in uart_cc32xx_irq_is_pending()
257 	struct uart_cc32xx_dev_data_t * const dev_data = dev->data;  in uart_cc32xx_irq_callback_set()
259 	dev_data->cb = cb;  in uart_cc32xx_irq_callback_set()
260 	dev_data->cb_data = cb_data;  in uart_cc32xx_irq_callback_set()
275 	const struct uart_cc32xx_dev_config *config = dev->config;  in uart_cc32xx_isr()
276 	struct uart_cc32xx_dev_data_t * const dev_data = dev->data;  in uart_cc32xx_isr()
278 	unsigned long intStatus = MAP_UARTIntStatus(config->base, 1);  in uart_cc32xx_isr()
280 	if (dev_data->cb) {  in uart_cc32xx_isr()
281 		dev_data->cb(dev, dev_data->cb_data);  in uart_cc32xx_isr()
284 	 * RX/TX interrupt should have been implicitly cleared by Zephyr UART  in uart_cc32xx_isr()
288 	MAP_UARTIntClear(config->base,  in uart_cc32xx_isr()
329 	.base = DT_INST_REG_ADDR(idx), \