blob: 00431a72430cf29d33855de85d271f0afa6892fe [file] [log] [blame]
/*
* Copyright (c) 2020 Teslabs Engineering S.L.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <errno.h>
#include <zephyr/drivers/mipi_dsi.h>
ssize_t mipi_dsi_generic_read(const struct device *dev, uint8_t channel,
const void *params, size_t nparams,
void *buf, size_t len)
{
struct mipi_dsi_msg msg = {
.tx_len = nparams,
.tx_buf = params,
.rx_len = len,
.rx_buf = buf
};
switch (nparams) {
case 0U:
msg.type = MIPI_DSI_GENERIC_READ_REQUEST_0_PARAM;
break;
case 1U:
msg.type = MIPI_DSI_GENERIC_READ_REQUEST_1_PARAM;
break;
case 2U:
msg.type = MIPI_DSI_GENERIC_READ_REQUEST_2_PARAM;
break;
default:
return -EINVAL;
}
return mipi_dsi_transfer(dev, channel, &msg);
}
ssize_t mipi_dsi_generic_write(const struct device *dev, uint8_t channel,
const void *buf, size_t len)
{
struct mipi_dsi_msg msg = {
.tx_buf = buf,
.tx_len = len
};
switch (len) {
case 0U:
msg.type = MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM;
break;
case 1U:
msg.type = MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM;
break;
case 2U:
msg.type = MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM;
break;
default:
msg.type = MIPI_DSI_GENERIC_LONG_WRITE;
break;
}
return mipi_dsi_transfer(dev, channel, &msg);
}
ssize_t mipi_dsi_dcs_read(const struct device *dev, uint8_t channel,
uint8_t cmd, void *buf, size_t len)
{
struct mipi_dsi_msg msg = {
.type = MIPI_DSI_DCS_READ,
.cmd = cmd,
.rx_buf = buf,
.rx_len = len
};
return mipi_dsi_transfer(dev, channel, &msg);
}
ssize_t mipi_dsi_dcs_write(const struct device *dev, uint8_t channel,
uint8_t cmd, const void *buf, size_t len)
{
struct mipi_dsi_msg msg = {
.cmd = cmd,
.tx_buf = buf,
.tx_len = len
};
switch (len) {
case 0U:
msg.type = MIPI_DSI_DCS_SHORT_WRITE;
break;
case 1U:
msg.type = MIPI_DSI_DCS_SHORT_WRITE_PARAM;
break;
default:
msg.type = MIPI_DSI_DCS_LONG_WRITE;
break;
}
return mipi_dsi_transfer(dev, channel, &msg);
}