Ejemplos de SPI_WORD_SET en C++ (Cpp)

Ejemplo n.º 1

Archivo: eswifi_bus_spi.c Proyecto: milinddeore/zephyr

int eswifi_spi_init(struct eswifi_dev *eswifi)
{
	struct eswifi_spi_data *spi = &eswifi_spi0; /* Static instance */

	/* SPI DEV */
	spi->spi_dev = device_get_binding(DT_INVENTEK_ESWIFI_ESWIFI0_BUS_NAME);
	if (!spi->spi_dev) {
		LOG_ERR("Failed to initialize SPI driver");
		return -ENODEV;
	}

	/* SPI DATA READY PIN */
	spi->dr.dev = device_get_binding(
			DT_INVENTEK_ESWIFI_ESWIFI0_DATA_GPIOS_CONTROLLER);
	if (!spi->dr.dev) {
		LOG_ERR("Failed to initialize GPIO driver: %s",
			    DT_INVENTEK_ESWIFI_ESWIFI0_DATA_GPIOS_CONTROLLER);
		return -ENODEV;
	}
	spi->dr.pin = DT_INVENTEK_ESWIFI_ESWIFI0_DATA_GPIOS_PIN;
	gpio_pin_configure(spi->dr.dev, spi->dr.pin, GPIO_DIR_IN);


	/* SPI CONFIG/CS */
	spi->spi_cfg.frequency = DT_INVENTEK_ESWIFI_ESWIFI0_SPI_MAX_FREQUENCY;
	spi->spi_cfg.operation = (SPI_OP_MODE_MASTER | SPI_TRANSFER_MSB |
				  SPI_WORD_SET(16) | SPI_LINES_SINGLE |
				  SPI_HOLD_ON_CS | SPI_LOCK_ON);
	spi->spi_cfg.slave = DT_INVENTEK_ESWIFI_ESWIFI0_BASE_ADDRESS;
	spi->spi_cs.gpio_dev =
		device_get_binding(DT_INVENTEK_ESWIFI_ESWIFI0_CS_GPIO_CONTROLLER);
	spi->spi_cs.gpio_pin = DT_INVENTEK_ESWIFI_ESWIFI0_CS_GPIO_PIN;
	spi->spi_cs.delay = 1000;
	spi->spi_cfg.cs = &spi->spi_cs;

	eswifi->bus_data = spi;

	LOG_DBG("success");

	k_thread_create(&spi->poll_thread, eswifi_spi_poll_stack,
			ESWIFI_SPI_THREAD_STACK_SIZE,
			(k_thread_entry_t)eswifi_spi_poll_thread, eswifi, NULL,
			NULL, K_PRIO_COOP(CONFIG_WIFI_ESWIFI_THREAD_PRIO), 0,
			K_NO_WAIT);

	return 0;
}

Ejemplo n.º 2

Archivo: wifi_winc1500_nm_bus_wrapper.c Proyecto: loicpoulain/zephyr

static s8_t spi_rw(u8_t *mosi, u8_t *miso, u16_t size)
{
	const struct spi_buf buf_tx = {
		.buf = mosi,
		.len = size
	};
	const struct spi_buf_set tx = {
		.buffers = &buf_tx,
		.count = 1
	};
	const struct spi_buf buf_rx = {
		.buf = miso,
		.len = miso ? size : 0
	};
	const struct spi_buf_set rx = {
		.buffers = &buf_rx,
		.count = 1
	};

	if (spi_transceive(winc1500.spi, &winc1500.spi_cfg, &tx, &rx)) {
		LOG_ERR("spi_transceive fail");
		return M2M_ERR_BUS_FAIL;
	}

	return M2M_SUCCESS;
}

#endif

s8_t nm_bus_init(void *pvinit)
{
	/* configure GPIOs */
	winc1500.gpios = winc1500_configure_gpios();

#ifdef CONF_WINC_USE_I2C
	/* Not implemented */
#elif defined CONF_WINC_USE_SPI
	/* setup SPI device */
	winc1500.spi = device_get_binding(DT_ATMEL_WINC1500_0_BUS_NAME);
	if (!winc1500.spi) {
		LOG_ERR("spi device binding");
		return -1;
	}

	winc1500.spi_cfg.operation = SPI_WORD_SET(8) | SPI_TRANSFER_MSB;
	winc1500.spi_cfg.frequency = DT_ATMEL_WINC1500_0_SPI_MAX_FREQUENCY;
	winc1500.spi_cfg.slave = DT_ATMEL_WINC1500_0_BASE_ADDRESS;

#ifdef CONFIG_WIFI_WINC1500_GPIO_SPI_CS
	cs_ctrl.gpio_dev = device_get_binding(
		DT_ATMEL_WINC1500_0_CS_GPIO_CONTROLLER);
	if (!cs_ctrl.gpio_dev) {
		LOG_ERR("Unable to get GPIO SPI CS device");
		return -ENODEV;
	}

	cs_ctrl.gpio_pin = DT_ATMEL_WINC1500_0_CS_GPIO_PIN;
	cs_ctrl.delay = 0U;

	winc1500.spi_cfg.cs = &cs_ctrl;

	LOG_DBG("SPI GPIO CS configured on %s:%u",
		    DT_ATMEL_WINC1500_0_CS_GPIO_CONTROLLER,
		    DT_ATMEL_WINC1500_0_CS_GPIO_PIN);
#endif /* CONFIG_WIFI_WINC1500_GPIO_SPI_CS */

	nm_bsp_reset();
	nm_bsp_sleep(1);

	nm_bsp_interrupt_ctrl(1);

	LOG_DBG("NOTICE:DONE");
#endif
	return 0;
}

s8_t nm_bus_ioctl(u8_t cmd, void *parameter)
{
	sint8 ret = 0;

	switch (cmd) {
#ifdef CONF_WINC_USE_I2C
	case NM_BUS_IOCTL_R: {
		struct nm_i2c_default *param =
			(struct nm_i2c_default *)parameter;

		ret = nm_i2c_read(param->buffer, param->size);
	}
	break;
	case NM_BUS_IOCTL_W: {
		struct nm_i2c_default *param =
			(struct nm_i2c_default *)parameter;

		ret = nm_i2c_write(param->buffer, param->size);
	}
	break;
	case NM_BUS_IOCTL_W_SPECIAL: {
		struct nm_i2c_special *param =
			(struct nm_i2c_special *)parameter;

		ret = nm_i2c_write_special(param->buffer1, param->size1,
					   param->buffer2, param->size2);
	}
	break;
#elif defined CONF_WINC_USE_SPI
	case NM_BUS_IOCTL_RW: {
		tstrNmSpiRw *param = (tstrNmSpiRw *)parameter;

		ret = spi_rw(param->pu8InBuf, param->pu8OutBuf, param->u16Sz);
	}
	break;
#endif
	default:
		ret = -1;
		M2M_ERR("ERROR:invalid ioclt cmd\n");
		break;
	}

	return ret;
}

s8_t nm_bus_deinit(void)
{
	return M2M_SUCCESS;
}

s8_t nm_bus_reinit(void *config)
{
	return 0;
}