diff options
| author | TiejunZhou <[email protected]> | 2022-04-26 14:21:38 +0800 |
|---|---|---|
| committer | GitHub <[email protected]> | 2022-04-26 14:21:38 +0800 |
| commit | e11c166a4045d80ea74fe917e5608474754f5067 (patch) | |
| tree | 0618f87d27c3856df9e856db75048424a8829399 /ports/rxv2/gnu/src/tx_thread_schedule.S | |
| parent | cef9cb22a5e2b9bca56074c5e627225ec0dd3d73 (diff) | |
| parent | 408f9fa1b78059906368d60d8375ba1fdbb9dc9f (diff) | |
Merge pull request #187 from azure-rtos/tizho/rx_updatev6.1.11_rel
Import RX port update for 6.1.11 release.
Diffstat (limited to 'ports/rxv2/gnu/src/tx_thread_schedule.S')
| -rw-r--r-- | ports/rxv2/gnu/src/tx_thread_schedule.S | 50 |
1 files changed, 40 insertions, 10 deletions
diff --git a/ports/rxv2/gnu/src/tx_thread_schedule.S b/ports/rxv2/gnu/src/tx_thread_schedule.S index 9587ac03..e3baf0fa 100644 --- a/ports/rxv2/gnu/src/tx_thread_schedule.S +++ b/ports/rxv2/gnu/src/tx_thread_schedule.S @@ -34,6 +34,11 @@ .global __tx_thread_execute_ptr .global __tx_thread_current_ptr .global __tx_timer_time_slice +#if (TX_LOW_POWER == 1) + .global _tx_low_power_enter + .global _tx_low_power_exit + .global __tx_thread_preempt_disable +#endif ; .text @@ -42,7 +47,7 @@ ;/* FUNCTION RELEASE */ ;/* */ ;/* _tx_thread_schedule RXv2/GNURX */ -;/* 6.1.10 */ +;/* 6.1.11 */ ;/* AUTHOR */ ;/* */ ;/* William E. Lamie, Microsoft Corporation */ @@ -82,6 +87,9 @@ ;/* resulting in version 6.1.9 */ ;/* 01-31-2022 William E. Lamie Modified comment(s), */ ;/* resulting in version 6.1.10 */ +;/* 04-25-2022 William E. Lamie Modified comment(s), and */ +;/* added low power support, */ +;/* resulting in version 6.1.11 */ ;/* */ ;/**************************************************************************/ ;VOID _tx_thread_schedule(VOID) @@ -89,26 +97,48 @@ .global __tx_thread_schedule __tx_thread_schedule: ; -; /* Enable interrupts. */ -; - SETPSW I ; ; /* Wait for a thread to execute. */ ; do ; { MOV.L #__tx_thread_execute_ptr, R1 ; Address of thread to executer ptr __tx_thread_schedule_loop: + SETPSW I ; Enable interrupts + CLRPSW I ; Disable interrupts MOV.L [R1],R2 ; Pickup next thread to execute CMP #0,R2 ; Is it NULL? - BEQ __tx_thread_schedule_loop ; Yes, idle system, keep checking + BNE __tx_thread_thread_ready ; Not NULL, schedule the thread + ; Idle system - no thread is ready +#if (TX_LOW_POWER == 1) + MOV.L #__tx_thread_preempt_disable, R1 ; Load prempt disable flag. + MOV.L [R1], R2 + ADD #1, R2 ; Disable preemption while enter/exit + MOV.L R2, [R1] + BSR _tx_low_power_enter ; Possibly enter low power mode +#endif + +#if (TX_ENABLE_WAIT == 1) + WAIT ; Wait for interrupt +#endif + +#if (TX_LOW_POWER == 1) + CLRPSW I ; Disable interrupts (because WAIT enables interrupts) + BSR _tx_low_power_exit ; Possibly exit low power mode + MOV.L #__tx_thread_preempt_disable, R1 ; Load prempt disable flag. + MOV.L [R1], R2 + SUB #1, R2 ; Enable preemption + MOV.L R2, [R1] + MOV.L #__tx_thread_execute_ptr, R1 ; Address of thread to executer ptr +#endif + + BRA __tx_thread_schedule_loop ; Idle system, keep checking + +__tx_thread_thread_ready: ; ; } ; while(_tx_thread_execute_ptr == TX_NULL); -; -; /* Yes! We have a thread to execute. Lockout interrupts and -; transfer control to it. */ -; - CLRPSW I ; Disable interrupts +; +; /* Yes! We have a thread to execute. Note that interrupts are locked out at this point. */ ; ; /* Setup the current thread pointer. */ ; _tx_thread_current_ptr = _tx_thread_execute_ptr; |