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