view src/cs/drivers/drv_app/kpd/kpd_task.c @ 75:8697f358f505

backlight rework: Condat light driver accepts levels The present change is another intermediate step on the path toward new FreeCalypso backlight handling. At this intermediate step the Condat light driver accepts 0-255 backlight levels driven by MFW, and puts them out on PWL on Luna development boards. At the same time on C139 it is now possible to turn on the display backlight with or without the keypad bl - the lsb of the 0-255 backlight level controls the keypad bl. MFW presently drives only 0 and 255 backlight levels, thus there is no visible behavioral change yet - but the plan for subsequent stages of this backlight rework is to add a dimmed backlight state (no keypad bl on C139) during active calls.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 24 Oct 2020 20:44:04 +0000
parents 4e78acac3d88
children 82665effff30
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/**
 * @file   kpd_task.c
 *
 * Coding of the main keypad function : kpd_core
 * This function loop in the process message function for waiting messages.
 *
 * @author   Laurent Sollier (l-sollier@ti.com)
 * @version 0.1
 */

/*
 * History:
 *
 *   Date          Author       Modification
 *  ----------------------------------------
 *  10/10/2001     L Sollier    Create
 *
 *
 * (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved
 */

#include "kpd/kpd_env.h"
#include "kpd/kpd_i.h"

#include "rv/rv_general.h"
#include "rvf/rvf_api.h"
#include "rvm/rvm_use_id_list.h"


/* External declaration until Riviera 1.6 is available*/
extern T_RV_RET kpd_handle_msg(T_RV_HDR*  msg_p);
extern T_RV_RET kpd_handle_timer(UINT8 timer_num);



/**
 * @name Functions implementation
 *
 */
/*@{*/

/**
 * function: kpd_core
 */
T_RV_RET kpd_core(void)
{   
   BOOLEAN error_occured = FALSE;
   T_RV_HDR* msg_p;
   UINT16 received_event;

   KPD_SEND_TRACE("KPD: Initialization", RV_TRACE_LEVEL_DEBUG_HIGH);

   /* loop to process messages */
   while (error_occured == FALSE)
   {
      /* Wait for the necessary events. */
       received_event = rvf_wait ( 0xffff,0);

      if (received_event & RVF_TASK_MBOX_0_EVT_MASK)
      {
         /* Read the message */
         msg_p = (T_RV_HDR*) rvf_read_mbox( KPD_MAILBOX_USED);

         kpd_handle_msg(msg_p);
      }

      if (received_event & RVF_TIMER_0_EVT_MASK)
      {
         kpd_handle_timer(RVF_TIMER_0);
      }

      if (received_event & RVF_TIMER_1_EVT_MASK)
      {
         kpd_handle_timer(RVF_TIMER_1);
      }
      if (received_event & RVF_TIMER_2_EVT_MASK)
      {
         kpd_handle_timer(RVF_TIMER_2);
      }
      if (received_event & RVF_TIMER_3_EVT_MASK)
      {
         kpd_handle_timer(RVF_TIMER_3);
      }

   }

   return RV_OK;
}