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

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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
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1 /*
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2 * This module implements the blrr_display_ctrl() function defined
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3 * in r2d_blrr_api.h; this implementation consists of posting the
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4 * necessary internal message to the R2D task.
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5 */
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6
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7 #include "r2d/r2d_blrr_api.h"
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8 #include "r2d/r2d_i.h"
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9 #include "r2d/r2d_messages.h"
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10 #include "rv/rv_general.h"
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11 #include "rvf/rvf_api.h"
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12 #include "rvm/rvm_use_id_list.h"
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13
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14 T_RV_RET blrr_display_ctrl(enum blrr_display_state arg)
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15 {
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16 T_R2D_EVT *msg;
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17
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18 rvf_send_trace("BLRR display state change", 25, arg,
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19 RV_TRACE_LEVEL_DEBUG_HIGH, R2D_USE_ID);
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20 if (rvf_get_buf(r2d_mb_id, sizeof(T_R2D_EVT), (T_RVF_BUFFER **)&msg)
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21 == RVF_RED) {
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22 rvf_send_trace(
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23 "rvf_get_buf() failed in blrr_display_ctrl()", 43,
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24 NULL_PARAM, RV_TRACE_LEVEL_ERROR, R2D_USE_ID);
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25 return RV_MEMORY_ERR;
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26 }
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27 msg->os_hdr.msg_id = R2D_MESSAGE_ONOFF;
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28 msg->os_hdr.src_addr_id = r2d_addr_id;
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29 msg->os_hdr.dest_addr_id = r2d_addr_id;
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30 msg->os_hdr.callback_func = NULL;
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31 msg->status = arg;
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32 if (rvf_send_msg(r2d_addr_id, msg) != RV_OK) {
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33 rvf_send_trace("blrr_display_ctrl(): Send failed!", 33,
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34 NULL_PARAM, RV_TRACE_LEVEL_ERROR, R2D_USE_ID);
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35 rvf_free_buf(msg);
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36 return RV_INTERNAL_ERR;
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37 }
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38 return RV_OK;
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39 }