embox

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#include <config/board_config.h>
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#include <drivers/gpio/gpio.h>
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extern int clk_enable(char *clk_name);
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static inline int uart_nr_by_addr(uintptr_t base_addr) {
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	int num;
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	switch (base_addr) {
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#if defined CONF_UART0_ENABLED
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	case CONF_UART0_REGION_BASE_ADDR:
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		num = 0;
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		break;
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#endif
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#if defined CONF_UART1_ENABLED
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	case CONF_UART1_REGION_BASE_ADDR:
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		num = 1;
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		break;
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#endif
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#if defined CONF_UART2_ENABLED
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	case CONF_UART2_REGION_BASE_ADDR:
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		num = 2;
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		break;
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#endif
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#if defined CONF_UART3_ENABLED
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	case CONF_UART3_REGION_BASE_ADDR:
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		num = 3;
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		break;
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#endif
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#if defined CONF_UART4_ENABLED
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	case CONF_UART4_REGION_BASE_ADDR:
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		num = 4;
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		break;
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#endif
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	default:
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		return -1;
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	}
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	return num;
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}
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static inline int uart_get_tx_port(int num) {
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	int port = -1;
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	switch (num) {
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#if defined CONF_UART0_PIN_TX_PORT
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	case 0:
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		port = CONF_UART0_PIN_TX_PORT;
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		break;
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#endif
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#if defined CONF_UART1_PIN_TX_PORT
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	case 1:
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		port = CONF_UART1_PIN_TX_PORT;
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		break;
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#endif
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#if defined CONF_UART2_PIN_TX_PORT
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	case 2:
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		port = CONF_UART2_PIN_TX_PORT;
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		break;
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#endif
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#if defined CONF_UART3_PIN_TX_PORT
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	case 3:
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		port = CONF_UART3_PIN_TX_PORT;
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		break;
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#endif
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#if defined CONF_UART4_PIN_TX_PORT
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	case 4:
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		port = CONF_UART4_PIN_TX_PORT;
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		break;
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#endif
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	default:
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		port = -1;
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	}
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	return port;
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}
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static inline int uart_get_tx_pin(int num) {
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	int pin = -1;
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	switch (num) {
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#if defined CONF_UART0_PIN_TX_NR
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	case 0:
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		pin = CONF_UART0_PIN_TX_NR;
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		break;
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#endif
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#if defined CONF_UART1_PIN_TX_NR
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	case 1:
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		pin = CONF_UART1_PIN_TX_NR;
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		break;
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#endif
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#if defined CONF_UART2_PIN_TX_NR
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	case 2:
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		pin = CONF_UART2_PIN_TX_NR;
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		break;
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#endif
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#if defined CONF_UART3_PIN_TX_NR
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	case 3:
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		pin = CONF_UART3_PIN_TX_NR;
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		break;
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#endif
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#if defined CONF_UART4_PIN_TX_NR
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	case 4:
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		pin = CONF_UART4_PIN_TX_NR;
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		break;
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#endif
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	default:
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		pin = -1;
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	}
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	return pin;
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}
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static inline int uart_get_tx_alt(int num) {
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	int alt = -1;
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	switch (num) {
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#if defined CONF_UART0_PIN_TX_AF
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	case 0:
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		alt = CONF_UART0_PIN_TX_AF;
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		break;
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#endif
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#if defined CONF_UART1_PIN_TX_AF
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	case 1:
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		alt = CONF_UART1_PIN_TX_AF;
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		break;
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#endif
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#if defined CONF_UART2_PIN_TX_AF
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	case 2:
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		alt = CONF_UART2_PIN_TX_AF;
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		break;
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#endif
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#if defined CONF_UART3_PIN_TX_AF
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	case 3:
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		alt = CONF_UART3_PIN_TX_AF;
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		break;
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#endif
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#if defined CONF_UART4_PIN_TX_NR
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	case 4:
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		alt = CONF_UART4_PIN_TX_NR;
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		break;
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#endif
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	default:
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		alt = -1;
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	}
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	return alt;
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}
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static inline int uart_get_rx_port(int num) {
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	int port = -1;
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	switch (num) {
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#if defined CONF_UART0_PIN_RX_PORT
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	case 0:
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		port = CONF_UART0_PIN_RX_PORT;
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		break;
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#endif
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#if defined CONF_UART1_PIN_RX_PORT
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	case 1:
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		port = CONF_UART1_PIN_RX_PORT;
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		break;
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#endif
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#if defined CONF_UART2_PIN_RX_PORT
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	case 2:
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		port = CONF_UART2_PIN_RX_PORT;
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		break;
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#endif
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#if defined CONF_UART3_PIN_RX_PORT
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	case 3:
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		port = CONF_UART3_PIN_RX_PORT;
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		break;
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#endif
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#if defined CONF_UART4_PIN_RX_PORT
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	case 4:
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		port = CONF_UART4_PIN_RX_PORT;
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		break;
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#endif
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	default:
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		port = -1;
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	}
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	return port;
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}
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static inline int uart_get_rx_pin(int num) {
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	int pin = -1;
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	switch (num) {
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#if defined CONF_UART0_PIN_RX_NR
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	case 0:
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		pin = CONF_UART0_PIN_RX_NR;
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		break;
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#endif
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#if defined CONF_UART1_PIN_RX_NR
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	case 1:
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		pin = CONF_UART1_PIN_RX_NR;
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		break;
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#endif
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#if defined CONF_UART2_PIN_RX_NR
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	case 2:
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		pin = CONF_UART2_PIN_RX_NR;
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		break;
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#endif
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#if defined CONF_UART3_PIN_RX_NR
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	case 3:
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		pin = CONF_UART3_PIN_RX_NR;
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		break;
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#endif
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#if defined CONF_UART4_PIN_RX_NR
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	case 4:
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		pin = CONF_UART4_PIN_RX_NR;
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		break;
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#endif
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	default:
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		pin = -1;
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	}
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	return pin;
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}
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static inline int uart_get_rx_alt(int num) {
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	int alt = -1;
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	switch (num) {
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#if defined CONF_UART0_PIN_RX_AF
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	case 0:
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		alt = CONF_UART0_PIN_RX_AF;
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		break;
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#endif
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#if defined CONF_UART1_PIN_RX_AF
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	case 1:
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		alt = CONF_UART1_PIN_RX_AF;
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		break;
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#endif
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#if defined CONF_UART2_PIN_RX_AF
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	case 2:
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		alt = CONF_UART2_PIN_RX_AF;
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		break;
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#endif
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#if defined CONF_UART3_PIN_RX_AF
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	case 3:
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		alt = CONF_UART3_PIN_RX_AF;
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		break;
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#endif
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#if defined CONF_UART4_PIN_RX_NR
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	case 4:
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		alt = CONF_UART4_PIN_RX_NR;
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		break;
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#endif
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	default:
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		alt = -1;
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	}
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	return alt;
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}
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static inline void uart_set_pins(int num) {
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	gpio_setup_mode(uart_get_tx_port(num),
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			(1 << uart_get_tx_pin(num)),
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			GPIO_MODE_OUT_ALTERNATE |
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			GPIO_ALTERNATE(uart_get_tx_alt(num)));
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	gpio_setup_mode(uart_get_rx_port(num),
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			(1 << uart_get_rx_pin(num)),
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			GPIO_MODE_OUT_ALTERNATE |
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			GPIO_ALTERNATE(uart_get_tx_alt(num)));
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}
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static inline int uart_set_clk(int num) {
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	char *clk_name;
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	switch (num) {
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#if defined CONF_UART0_CLK_ENABLE
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		case 0:
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		clk_name = CONF_UART0_CLK_ENABLE();
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		break;
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#endif
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#if defined CONF_UART1_CLK_ENABLE
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		case 1:
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		clk_name = CONF_UART1_CLK_ENABLE();
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		break;
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#endif
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#if defined CONF_UART2_CLK_ENABLE
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		case 2:
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		clk_name = CONF_UART2_CLK_ENABLE();
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		break;
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#endif
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#if defined CONF_UART3_CLK_ENABLE
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		case 3:
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		clk_name = CONF_UART3_CLK_ENABLE();
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		break;
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#endif
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#if defined CONF_UART4_CLK_ENABLE
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		case 4:
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		clk_name = CONF_UART4_CLK_ENABLE();
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		break;
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#endif
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	default:
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		return -1;
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	}
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	clk_enable(clk_name);
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	return  0;
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}
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static inline int uart_setup_hw(struct uart *dev) {
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	int uart_num = uart_nr_by_addr(dev->base_addr);
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	uart_set_pins(uart_num);
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	uart_set_clk(uart_num);
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	return 0;
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}
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