C++ (Cpp) nm_i2c_write Examples

Example #1

File: nm_bus_wrapper.c Project: MaurinElectroTextile/openmv

static sint8 nm_i2c_write_special(uint8 *wb1, uint16 sz1, uint8 *wb2, uint16 sz2)
{
	static uint8 tmp[NM_BUS_MAX_TRX_SZ];
	m2m_memcpy(tmp, wb1, sz1);
	m2m_memcpy(&tmp[sz1], wb2, sz2);
	return nm_i2c_write(tmp, sz1+sz2);
}

Example #2

File: nm_bus_wrapper.c Project: MaurinElectroTextile/openmv

/*
*	@fn		nm_bus_ioctl
*	@brief	send/receive from the bus
*	@param[IN]	u8Cmd
*					IOCTL command for the operation
*	@param[IN]	pvParameter
*					Arbitrary parameter depenging on IOCTL
*	@return	M2M_SUCCESS in case of success and M2M_ERR_BUS_FAIL in case of failure
*	@note	For SPI only, it's important to be able to send/receive at the same time
*/
sint8 nm_bus_ioctl(uint8 u8Cmd, void* pvParameter)
{
	sint8 s8Ret = 0;
	switch(u8Cmd)
	{
#ifdef CONF_WINC_USE_I2C
		case NM_BUS_IOCTL_R: {
			tstrNmI2cDefault *pstrParam = (tstrNmI2cDefault *)pvParameter;
			s8Ret = nm_i2c_read(pstrParam->pu8Buf, pstrParam->u16Sz);
		}
		break;
		case NM_BUS_IOCTL_W: {
			tstrNmI2cDefault *pstrParam = (tstrNmI2cDefault *)pvParameter;
			s8Ret = nm_i2c_write(pstrParam->pu8Buf, pstrParam->u16Sz);
		}
		break;
		case NM_BUS_IOCTL_W_SPECIAL: {
			tstrNmI2cSpecial *pstrParam = (tstrNmI2cSpecial *)pvParameter;
			s8Ret = nm_i2c_write_special(pstrParam->pu8Buf1, pstrParam->u16Sz1, pstrParam->pu8Buf2, pstrParam->u16Sz2);
		}
		break;
#elif defined CONF_WINC_USE_SPI
		case NM_BUS_IOCTL_RW: {
			tstrNmSpiRw *pstrParam = (tstrNmSpiRw *)pvParameter;
			s8Ret = spi_rw(pstrParam->pu8InBuf, pstrParam->pu8OutBuf, pstrParam->u16Sz);
		}
		break;
#endif
		default:
			s8Ret = -1;
			M2M_ERR("invalide ioclt cmd\n");
			break;
	}

	return s8Ret;
}

Example #3

File: wifi_winc1500_nm_bus_wrapper.c Project: 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;
}