ethernet/asix/ax88796c_spi.c

20 int axspi_wakeup(struct axspi_data *ax_spi)
24 	ax_spi->cmd_buf[0] = AX_SPICMD_EXIT_PWD;	/* OP */
25 	ret = spi_write(ax_spi->spi, ax_spi->cmd_buf, 1);
27 		dev_err(&ax_spi->spi->dev, "%s() failed: ret = %d\n", __func__, ret);
31 int axspi_read_status(struct axspi_data *ax_spi, struct spi_status *status)
36 	ax_spi->cmd_buf[0] = AX_SPICMD_READ_STATUS;
37 	ret = spi_write_then_read(ax_spi->spi, ax_spi->cmd_buf, 1, (u8 *)status, 3);
39 		dev_err(&ax_spi->spi->dev, "%s() failed: ret = %d\n", __func__, ret);
46 int axspi_read_rxq(struct axspi_data *ax_spi, void *data, int len)
48 	struct spi_transfer *xfer = ax_spi->spi_rx_xfer;
51 	memcpy(ax_spi->cmd_buf, ax88796c_rx_cmd_buf, 5);
53 	xfer->tx_buf = ax_spi->cmd_buf;
55 	xfer->len = ax_spi->comp ? 2 : 5;
57 	spi_message_add_tail(xfer, &ax_spi->rx_msg);
64 	spi_message_add_tail(xfer, &ax_spi->rx_msg);
65 	ret = spi_sync(ax_spi->spi, &ax_spi->rx_msg);
67 		dev_err(&ax_spi->spi->dev, "%s() failed: ret = %d\n", __func__, ret);
72 int axspi_write_txq(const struct axspi_data *ax_spi, void *data, int len)
74 	return spi_write(ax_spi->spi, data, len);
77 u16 axspi_read_reg(struct axspi_data *ax_spi, u8 reg)
80 	int len = ax_spi->comp ? 3 : 4;
82 	ax_spi->cmd_buf[0] = 0x03;	/* OP code read register */
83 	ax_spi->cmd_buf[1] = reg;	/* register address */
84 	ax_spi->cmd_buf[2] = 0xFF;	/* dumy cycle */
85 	ax_spi->cmd_buf[3] = 0xFF;	/* dumy cycle */
86 	ret = spi_write_then_read(ax_spi->spi,
87 				  ax_spi->cmd_buf, len,
88 				  ax_spi->rx_buf, 2);
90 		dev_err(&ax_spi->spi->dev,
95 	le16_to_cpus((u16 *)ax_spi->rx_buf);
97 	return *(u16 *)ax_spi->rx_buf;
100 int axspi_write_reg(struct axspi_data *ax_spi, u8 reg, u16 value)
104 	memset(ax_spi->cmd_buf, 0, sizeof(ax_spi->cmd_buf));
105 	ax_spi->cmd_buf[0] = AX_SPICMD_WRITE_REG;	/* OP code read register */
106 	ax_spi->cmd_buf[1] = reg;			/* register address */
107 	ax_spi->cmd_buf[2] = value;
108 	ax_spi->cmd_buf[3] = value >> 8;
110 	ret = spi_write(ax_spi->spi, ax_spi->cmd_buf, 4);
112 		dev_err(&ax_spi->spi->dev, "%s() failed: ret = %d\n", __func__, ret);