embox

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/**
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 * @file
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 *
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 * @date Feb 11, 2023
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 * @author Anton Bondarev
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 */
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#include <kernel/irq.h>
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#include <util/macro.h>
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#include <drivers/serial/uart_dev.h>
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#include <drivers/ttys.h>
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#include <drivers/common/memory.h>
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#include <framework/mod/options.h>
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#define UART_BASE      OPTION_GET(NUMBER, base_addr)
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#define IRQ_NUM        OPTION_GET(NUMBER, irq_num)
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#define PINS_INIT      OPTION_GET(NUMBER, pins_init)
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#define TTY_NAME    ttyS0
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extern int elvees_uart_setup_common(struct uart *dev, const struct uart_params *params);
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extern int elvees_uart_has_symbol(struct uart *dev);
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extern int elvees_uart_getc(struct uart *dev);
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extern int elvees_uart_putc(struct uart *dev, int ch);
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#if PINS_INIT == 0
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static int elvees_uart_setup(struct uart *dev, const struct uart_params *params) {
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	return 0;
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}
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#else
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#include <drivers/gpio/gpio_driver.h>
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#define PIN_RX_PORT      OPTION_GET(NUMBER, pin_rx_port)
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#define PIN_RX_PIN       OPTION_GET(NUMBER, pin_rx_pin)
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#define PIN_TX_PORT      OPTION_GET(NUMBER, pin_tx_port)
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#define PIN_TX_PIN       OPTION_GET(NUMBER, pin_tx_pin)
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static int elvees_uart_setup(struct uart *dev, const struct uart_params *params) {
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#define GPIO_ALT_FUNC_UART   (4)
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	gpio_setup_mode(PIN_RX_PORT, 1 << PIN_RX_PIN, GPIO_MODE_OUT_ALTERNATE | GPIO_ALTERNATE(GPIO_ALT_FUNC_UART));
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	gpio_setup_mode(PIN_TX_PORT, 1 << PIN_TX_PIN, GPIO_MODE_OUT_ALTERNATE | GPIO_ALTERNATE(GPIO_ALT_FUNC_UART));
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	elvees_uart_setup_common(dev, params);
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	return 0;
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}
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#endif
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static const struct uart_ops elvees_uart_uart_ops = {
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		.uart_getc = elvees_uart_getc,
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		.uart_putc = elvees_uart_putc,
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		.uart_hasrx = elvees_uart_has_symbol,
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		.uart_setup = elvees_uart_setup,
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};
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extern irq_return_t uart_irq_handler(unsigned int irq_nr, void *data);
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static struct uart uart_ttyS0 = {
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		.uart_ops = &elvees_uart_uart_ops,
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		.irq_num = IRQ_NUM,
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		.base_addr = UART_BASE,
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		.params =  {
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		.baud_rate = OPTION_GET(NUMBER,baud_rate),
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		.uart_param_flags = UART_PARAM_FLAGS_8BIT_WORD | UART_PARAM_FLAGS_USE_IRQ,
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		},
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};
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PERIPH_MEMORY_DEFINE(elvees_uart, UART_BASE, 0x1000);
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STATIC_IRQ_ATTACH(IRQ_NUM, uart_irq_handler, &uart_ttyS0);
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TTYS_DEF(TTY_NAME, &uart_ttyS0);
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