# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1603084289 0
# Node ID 04aaa5622fa7b020adb9ddf77da390cb645214ee
# Parent  a62e5bf88434a3e01e82f3e1d1aa4ed247e14821
disable deep sleep when Iota LEDB is on

TI's Iota chip docs say that CLK13M must be running in order for
LEDB to work, and practical experience on Mot C139 which uses
Iota LEDB for its keypad backlight concurs: if Calypso enters
deep sleep while the keypad backlight is turned on, the light
flickers visibly as the chipset goes into and out of deep sleep.

TI's original L1 sleep manager code had logic to disable deep sleep
when LT_Status() returns nonzero, but that function only works
for B-Sample and C-Sample LT, always returns 0 on BOARD 41 - no
check of Iota LEDB status anywhere.  Change this code for our
current hardware: disable deep sleep when Iota LEDB has been
turned on through LLS.

diff -r a62e5bf88434 -r 04aaa5622fa7 src/cs/layer1/cust0/l1_cust.c
--- a/src/cs/layer1/cust0/l1_cust.c	Sun Oct 18 18:08:15 2020 +0000
+++ b/src/cs/layer1/cust0/l1_cust.c	Mon Oct 19 05:11:29 2020 +0000
@@ -255,6 +255,7 @@
   extern T_PWR_CTRL_BLOCK *pwr_ctrl;
 #endif
   extern SYS_BOOL uart_sleep_timer_enabled;
+  unsigned char iota_ledb_status;
 
 #if (CODE_VERSION != SIMULATION)
 
@@ -272,7 +273,7 @@
 #endif
 
     // Forbid deep sleep if the light is on
-    if (LT_Status())
+    if (iota_ledb_status)
     {
       why_big_sleep = BIG_SLEEP_DUE_TO_LIGHT_ON;
       return(FRAME_STOP);  // BIG sleep
diff -r a62e5bf88434 -r 04aaa5622fa7 src/cs/services/lls/lls_api.c
--- a/src/cs/services/lls/lls_api.c	Sun Oct 18 18:08:15 2020 +0000
+++ b/src/cs/services/lls/lls_api.c	Mon Oct 19 05:11:29 2020 +0000
@@ -31,6 +31,9 @@
 /** External declaration */
 extern T_LLS_ENV_CTRL_BLK* lls_env_ctrl_blk;
 
+/* FreeCalypso addition for L1 sleep manager */
+unsigned char iota_ledb_status;
+
 
 /**
  * @name Functions implementation
@@ -62,10 +65,14 @@
 
    if (ret != RV_OK)
    {
-      LLS_SEND_TRACE("LLS: Equipment is unknow", RV_TRACE_LEVEL_ERROR);
+      LLS_SEND_TRACE("LLS: Equipment is unknown", RV_TRACE_LEVEL_ERROR);
       return ret;
    }
 
+   /* FreeCalypso addition */
+   if (equipment_sort == LLS_BACKLIGHT)
+      iota_ledb_status = 1;
+
    ret = lls_manage_equipment(equipment_index, SWITCH_ON);
 
    return ret;
@@ -99,12 +106,16 @@
 
    if (ret != RV_OK)
    {
-      LLS_SEND_TRACE("LLS: Equipment is unknow", RV_TRACE_LEVEL_ERROR);
+      LLS_SEND_TRACE("LLS: Equipment is unknown", RV_TRACE_LEVEL_ERROR);
       return ret;
    }
 
    ret = lls_manage_equipment(equipment_index, SWITCH_OFF);
-   
+
+   /* FreeCalypso addition */
+   if (equipment_sort == LLS_BACKLIGHT)
+      iota_ledb_status = 0;
+
    return ret;
 
 #else