dp_aux.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <dp_aux.h>
 
bool dp_aux_request_is_write(enum aux_request request)
{
        switch (request) {
        case I2C_RAW_WRITE_AND_STOP:
        case I2C_RAW_WRITE:
        case DPCD_WRITE:
                return true;
        default:
                return false;
        }
}
 
enum i2c_over_aux dp_get_aux_cmd(enum aux_request request, uint32_t remaining_after_this)
{
        switch (request) {
        case I2C_RAW_WRITE_AND_STOP:
                if (!remaining_after_this)
                        return I2C_OVER_AUX_WRITE_MOT_0;
                __fallthrough;
        case I2C_RAW_WRITE:
                return I2C_OVER_AUX_WRITE_MOT_1;
        case I2C_RAW_READ_AND_STOP:
                if (!remaining_after_this)
                        return I2C_OVER_AUX_READ_MOT_0;
                __fallthrough;
        case I2C_RAW_READ:
                return I2C_OVER_AUX_READ_MOT_1;
        case DPCD_WRITE:
                return NATIVE_AUX_WRITE;
        case DPCD_READ:
        default:
                return NATIVE_AUX_READ;
        }
}