FreeCalypso > hg > fc-tourmaline
comparison src/cs/layer1/cust0/l1_cust.c @ 51:04aaa5622fa7
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.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 19 Oct 2020 05:11:29 +0000 |
parents | 4e78acac3d88 |
children | 6d77f6e1670a |
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50:a62e5bf88434 | 51:04aaa5622fa7 |
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253 extern UWORD8 why_big_sleep; | 253 extern UWORD8 why_big_sleep; |
254 #ifdef RVM_FCHG_SWE | 254 #ifdef RVM_FCHG_SWE |
255 extern T_PWR_CTRL_BLOCK *pwr_ctrl; | 255 extern T_PWR_CTRL_BLOCK *pwr_ctrl; |
256 #endif | 256 #endif |
257 extern SYS_BOOL uart_sleep_timer_enabled; | 257 extern SYS_BOOL uart_sleep_timer_enabled; |
258 unsigned char iota_ledb_status; | |
258 | 259 |
259 #if (CODE_VERSION != SIMULATION) | 260 #if (CODE_VERSION != SIMULATION) |
260 | 261 |
261 //cut ARMIO and UWIRE clocks in big sleep | 262 //cut ARMIO and UWIRE clocks in big sleep |
262 l1s.pw_mgr.modules_status = ARMIO_CLK_CUT | UWIRE_CLK_CUT; | 263 l1s.pw_mgr.modules_status = ARMIO_CLK_CUT | UWIRE_CLK_CUT; |
270 return(FRAME_STOP); // BIG sleep | 271 return(FRAME_STOP); // BIG sleep |
271 } | 272 } |
272 #endif | 273 #endif |
273 | 274 |
274 // Forbid deep sleep if the light is on | 275 // Forbid deep sleep if the light is on |
275 if (LT_Status()) | 276 if (iota_ledb_status) |
276 { | 277 { |
277 why_big_sleep = BIG_SLEEP_DUE_TO_LIGHT_ON; | 278 why_big_sleep = BIG_SLEEP_DUE_TO_LIGHT_ON; |
278 return(FRAME_STOP); // BIG sleep | 279 return(FRAME_STOP); // BIG sleep |
279 } | 280 } |
280 | 281 |