| // deprecated.S -- Deprecated assembler functions |
| |
| // Copyright (c) 2003-2010 Tensilica Inc. |
| // |
| // Permission is hereby granted, free of charge, to any person obtaining |
| // a copy of this software and associated documentation files (the |
| // "Software"), to deal in the Software without restriction, including |
| // without limitation the rights to use, copy, modify, merge, publish, |
| // distribute, sublicense, and/or sell copies of the Software, and to |
| // permit persons to whom the Software is furnished to do so, subject to |
| // the following conditions: |
| // |
| // The above copyright notice and this permission notice shall be included |
| // in all copies or substantial portions of the Software. |
| // |
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| // IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| // CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| // TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| // SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| |
| #include <xtensa/coreasm.h> |
| #include <xtensa/config/specreg.h> |
| #include "xtos-internal.h" |
| |
| |
| |
| .text |
| |
| /* |
| void _xtos_timer_<N>_delta(int cycles) |
| |
| Set the timer from the current ccount. |
| DEPRECATED. PLEASE USE xthal_set_ccompare() AND xthal_get_ccount() |
| INSTEAD, OR USE DIFFERENT ALGORITHM THAT UPDATES CCOMPAREn RELATIVE TO |
| LAST CCOMPAREn FOR DRIFT-FREE PERIODIC TIMER INTERRUPTS. |
| */ |
| .macro define_timer_delta num, numtimers |
| .if ((\num-\numtimers) & ~0xFFF) // num < numtimers ? |
| .align 4 |
| .global _xtos_timer_&num&_delta |
| .type _xtos_timer_&num&_delta,@function |
| _xtos_timer_&num&_delta: |
| abi_entry |
| rsr a3, CCOUNT |
| add a3, a3, a2 |
| wsr a3, CCOMPARE_0+&num& |
| abi_return |
| .size _xtos_timer_&num&_delta, . - _xtos_timer_&num&_delta |
| .endif |
| .endm |
| |
| |
| |
| #if defined(__SPLIT__t0_delta) |
| |
| define_timer_delta 0, XCHAL_NUM_TIMERS |
| |
| #elif defined(__SPLIT__t1_delta) |
| |
| define_timer_delta 1, XCHAL_NUM_TIMERS |
| |
| #elif defined(__SPLIT__t2_delta) |
| |
| define_timer_delta 2, XCHAL_NUM_TIMERS |
| |
| #elif defined(__SPLIT__t3_delta) |
| |
| define_timer_delta 3, XCHAL_NUM_TIMERS |
| |
| |
| #elif defined(__SPLIT__read_ints) |
| |
| // |
| // u32 _xtos_read_ints( void ) |
| // |
| // _xtos_read_ints() reads the INTERRUPT register and returns it. |
| // DEPRECATED. PLEASE USE xthal_get_interrupt() INSTEAD. |
| // [Kept temporarily because it was documented in T1050 System SW Ref Manual.] |
| // |
| .text |
| .align 4 |
| .global _xtos_read_ints |
| .type _xtos_read_ints,@function |
| _xtos_read_ints: |
| abi_entry |
| #if XCHAL_HAVE_INTERRUPTS |
| rsr a2, INTERRUPT |
| #else /*XCHAL_HAVE_INTERRUPTS*/ |
| movi a2, 0 |
| #endif /*XCHAL_HAVE_INTERRUPTS*/ |
| abi_return |
| .size _xtos_read_ints, . - _xtos_read_ints |
| |
| |
| #elif defined(__SPLIT__clear_ints) |
| |
| // |
| // void _xtos_clear_ints( u32 mask ) |
| // |
| // _xtos_clear_ints() clears selected bits of the INTERRUPT register. |
| // DEPRECATED. PLEASE USE xthal_set_intclear() INSTEAD. |
| // [Kept temporarily because it was documented in T1050 System SW Ref Manual.] |
| // |
| .text |
| .align 4 |
| .global _xtos_clear_ints |
| .type _xtos_clear_ints,@function |
| _xtos_clear_ints: |
| abi_entry |
| #if XCHAL_HAVE_INTERRUPTS |
| wsr a2, INTCLEAR |
| #endif /*XCHAL_HAVE_INTERRUPTS*/ |
| abi_return |
| .size _xtos_clear_ints, . - _xtos_clear_ints |
| |
| #endif /* splitting */ |
| |
