view src/cs/drivers/drv_app/r2d/r2d_blrr_api.c @ 276:4221c724c664

R2D: preparations for adding LCD hardware suspend handling
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 07 Sep 2021 21:05:38 +0000
parents bb1f572ac098
children
line wrap: on
line source

/*
 * This module implements the blrr_display_ctrl() function defined
 * in r2d_blrr_api.h; this implementation consists of posting the
 * necessary internal message to the R2D task.
 */

#include "r2d/r2d_blrr_api.h"
#include "r2d/r2d_i.h"
#include "r2d/r2d_messages.h"
#include "rv/rv_general.h"
#include "rvf/rvf_api.h"
#include "rvm/rvm_use_id_list.h"

T_RV_RET blrr_display_ctrl(enum blrr_display_state arg)
{
	T_R2D_EVT *msg;

	rvf_send_trace("BLRR display state change", 25, arg,
			RV_TRACE_LEVEL_DEBUG_HIGH, R2D_USE_ID);
	if (rvf_get_buf(r2d_mb_id, sizeof(T_R2D_EVT), (T_RVF_BUFFER **)&msg)
	    == RVF_RED) {
		rvf_send_trace(
			"rvf_get_buf() failed in blrr_display_ctrl()", 43,
			NULL_PARAM, RV_TRACE_LEVEL_ERROR, R2D_USE_ID);
		return RV_MEMORY_ERR;
	}
	msg->os_hdr.msg_id        = R2D_MESSAGE_ONOFF;
	msg->os_hdr.src_addr_id   = r2d_addr_id;
	msg->os_hdr.dest_addr_id  = r2d_addr_id;
	msg->os_hdr.callback_func = NULL;
	msg->status = arg;
	if (rvf_send_msg(r2d_addr_id, msg) != RV_OK) {
		rvf_send_trace("blrr_display_ctrl(): Send failed!", 33,
				NULL_PARAM, RV_TRACE_LEVEL_ERROR, R2D_USE_ID);
		rvf_free_buf(msg);
		return RV_INTERNAL_ERR;
	}
	return RV_OK;
}