FreeCalypso > hg > fc-tourmaline

annotate src/cs/services/tty/tty_task.c @ 72:7bf39f5e834d

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backlight control on Luna: switch PWL instead of LEDB This change is preliminary toward upcoming rework of backlight control logic in our UI firmware. LEDB does not exist on Tango-based platforms (it is not brought out on Tango modules), thus turning it on and off produces absolutely no effect beyond making L1 disable deep sleep when LEDB is turned on. However, both iWOW DSK and our upcoming FC Caramel2 boards have a PWL LED, so let's switch that LED on and off to indicate the state of the UI firmware's backlight control. Note that we are NOT switching the actual Luna LCD backlight here, even though it is trivially controlled with a GPIO. The reason for this seemingly strange choice is that we don't want to turn this development board LCD backlight off until we bring the higher-level backlight control logic up to par, including new logic to "swallow" the first keypress that turns on the darkened LCD.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 24 Oct 2020 07:39:54 +0000
parents 4e78acac3d88
children
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4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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1 /**
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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2 * @file tty_task.c
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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3 *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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4 * Coding of the main TTY function : tty_core
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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5 * This function loop in the process message function for waiting messages.
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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6 *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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7 * @author Frederic Turgis (f-turgis@ti.com) & Gerard Cauvy (g-cauvy@ti.com)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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8 * @version 0.1
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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9 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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10
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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11 /*
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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12 * History:
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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13 *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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14 * Date Modification
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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15 * ------------------------------------
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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16 * 01/27/2003 Create
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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17 *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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18 * (C) Copyright 2003 by Texas Instruments Incorporated, All Rights Reserved
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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19 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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20
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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21 #ifndef _WINDOWS
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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22 #include "config/l1sw.cfg"
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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23 #endif
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24
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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25 #include "tty/tty_env.h"
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26 #include "tty/tty_i.h"
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27
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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28 #include "rv/rv_general.h"
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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29 #include "rvf/rvf_api.h"
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30 #include "rvm/rvm_use_id_list.h"
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31
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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32 #if (TRACE_TYPE == 1) || (TRACE_TYPE == 4)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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33 #ifndef _WINDOWS
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34 #include "config/sys.cfg"
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35 #include "config/chipset.cfg"
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36 #endif
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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37 #include "l1_types.h"
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38 #include "l1_confg.h"
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39 #include "l1_trace.h"
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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40 #endif
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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41
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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42 #if (L1_GTT == 1)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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43 /* External prototype. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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44 extern void l1gtt_initialize(void);
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45 extern void l1gtt_exit(void);
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46 extern void l1gtt_main_processing(void);
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47 extern void l1gtt_init_trace(void);
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48 #else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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49 /* Dummy functions */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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50 void l1gtt_initialize(void) {}
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51 void l1gtt_exit(void) {}
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52 void l1gtt_main_processing(void) {}
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53 void l1gtt_init_trace(void) {}
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54 #endif
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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55
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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56
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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57 /**
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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58 * @name Functions implementation
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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59 *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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60 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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61 /*@{*/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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62
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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63 /**
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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64 * function: tty_core
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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65 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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66 T_RV_RET tty_core(void)
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67 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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68 BOOLEAN error_occured = FALSE;
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69 T_RV_HDR* msg_p;
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70 UINT16 received_event;
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71
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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72 TTY_SEND_TRACE("TTY TASK Started", RV_TRACE_LEVEL_DEBUG_HIGH );
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73
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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74 l1gtt_init_trace();
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75
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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76 /* loop to process messages */
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77 while (error_occured == FALSE)
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78 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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79 /* Wait for the necessary events. */
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80 received_event = rvf_wait ( 0xffff,0);
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81
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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82 if (received_event & TTY_INIT_EVENT_MASK)
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83 {
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84 l1gtt_initialize();
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85 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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86 else if (received_event & TTY_EXIT_EVENT_MASK)
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87 {
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88 l1gtt_exit();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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89 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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90 else if (received_event & TTY_DATA_EVENT_MASK)
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91 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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92 l1gtt_main_processing();
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93 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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94 }
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95
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96 return RV_OK;
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97 }