1  /* SPDX-License-Identifier: GPL-2.0-only */
 2  
 3  #include <dp_aux.h>
 4  
 5  bool dp_aux_request_is_write(enum aux_request request)
 6  {
 7  	switch (request) {
 8  	case I2C_RAW_WRITE_AND_STOP:
 9  	case I2C_RAW_WRITE:
10  	case DPCD_WRITE:
11  		return true;
12  	default:
13  		return false;
14  	}
15  }
16  
17  enum i2c_over_aux dp_get_aux_cmd(enum aux_request request, uint32_t remaining_after_this)
18  {
19  	switch (request) {
20  	case I2C_RAW_WRITE_AND_STOP:
21  		if (!remaining_after_this)
22  			return I2C_OVER_AUX_WRITE_MOT_0;
23  		__fallthrough;
24  	case I2C_RAW_WRITE:
25  		return I2C_OVER_AUX_WRITE_MOT_1;
26  	case I2C_RAW_READ_AND_STOP:
27  		if (!remaining_after_this)
28  			return I2C_OVER_AUX_READ_MOT_0;
29  		__fallthrough;
30  	case I2C_RAW_READ:
31  		return I2C_OVER_AUX_READ_MOT_1;
32  	case DPCD_WRITE:
33  		return NATIVE_AUX_WRITE;
34  	case DPCD_READ:
35  	default:
36  		return NATIVE_AUX_READ;
37  	}
38  }