C++ (Cpp) TCPC_REG_TRANSMIT_SETの例

コード例 #1

ファイル: tcpci.c プロジェクト: fourier49/BIZ_EC

int tcpm_transmit(int port, enum tcpm_transmit_type type, uint16_t header,
		   const uint32_t *data)
{
	int reg = TCPC_REG_TX_DATA;
	int rv, cnt = 4*PD_HEADER_CNT(header);

	rv = i2c_write8(I2C_PORT_TCPC, I2C_ADDR_TCPC(port),
			TCPC_REG_TX_BYTE_CNT, cnt);

	rv |= i2c_write16(I2C_PORT_TCPC, I2C_ADDR_TCPC(port),
			  TCPC_REG_TX_HDR, header);

	/* If i2c read fails, return error */
	if (rv)
		return rv;

	if (cnt > 0) {
		i2c_lock(I2C_PORT_TCPC, 1);
		rv = i2c_xfer(I2C_PORT_TCPC, I2C_ADDR_TCPC(port),
			      (uint8_t *)&reg, 1, NULL, 0, I2C_XFER_START);
		rv |= i2c_xfer(I2C_PORT_TCPC, I2C_ADDR_TCPC(port),
			       (uint8_t *)data, cnt, NULL, 0, I2C_XFER_STOP);
		i2c_lock(I2C_PORT_TCPC, 0);
	}

	/* If i2c read fails, return error */
	if (rv)
		return rv;

	rv = i2c_write8(I2C_PORT_TCPC, I2C_ADDR_TCPC(port),
			TCPC_REG_TRANSMIT, TCPC_REG_TRANSMIT_SET(type));

	return rv;
}

コード例 #2

ファイル: tcpci.c プロジェクト: fishbaoz/chrome-ec

static int tcpci_tcpm_transmit(int port, enum tcpm_transmit_type type,
			       uint16_t header, const uint32_t *data)
{
	int reg = TCPC_REG_TX_DATA;
	int rv, cnt = 4*PD_HEADER_CNT(header);

	/* TX_BYTE_CNT includes 2 bytes for message header */
	rv = tcpc_write(port, TCPC_REG_TX_BYTE_CNT, cnt + 2);

	rv |= tcpc_write16(port, TCPC_REG_TX_HDR, header);

	/* If tcpc read fails, return error */
	if (rv)
		return rv;

	if (cnt > 0) {
		tcpc_lock(port, 1);
		rv = tcpc_xfer(port,
			       (uint8_t *)&reg, 1, NULL, 0, I2C_XFER_START);
		rv |= tcpc_xfer(port,
				(uint8_t *)data, cnt, NULL, 0, I2C_XFER_STOP);
		tcpc_lock(port, 0);
	}

	/* If tcpc read fails, return error */
	if (rv)
		return rv;

	rv = tcpc_write(port, TCPC_REG_TRANSMIT, TCPC_REG_TRANSMIT_SET(type));

	return rv;
}