| // int-initlevel.S - Routines used to pull-in interrupt dispatch code |
| // in the tiny-rt LSP. |
| // $Id: //depot/rel/Eaglenest/Xtensa/OS/xtos/int-initlevel.S#1 $ |
| |
| // Copyright (c) 2006-2010 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. |
| |
| |
| // To assemble this template file, define a macro called _INTERRUPT_LEVEL |
| // to be the interrupt level of the vector. We use the same template for both |
| // high-level and medium-level interrupts, but not debug level. |
| |
| |
| #include <xtensa/coreasm.h> |
| #include "xtos-internal.h" |
| |
| |
| #if XCHAL_HAVE_INTERRUPTS && (_INTERRUPT_LEVEL <= XCHAL_NUM_INTLEVELS) && (_INTERRUPT_LEVEL != XCHAL_DEBUGLEVEL) |
| |
| // Nothing to do at runtime. This function only has effect |
| // at link-time. |
| // |
| .text |
| .global LABEL(_xtos_dispatch_level,_interrupts) |
| .align 4 |
| LABEL(_xtos_dispatch_level,_interrupts): |
| abi_entry |
| abi_return |
| .size LABEL(_xtos_dispatch_level,_interrupts), . - LABEL(_xtos_dispatch_level,_interrupts) |
| |
| // This reference is what does the work of pulling-in the |
| // relevant interrupt vector at the specified level. |
| // This is only needed in the tiny-rt LSP. |
| // |
| # if _INTERRUPT_LEVEL == 1 |
| .global _need_level1int_ |
| # else |
| .global LABEL(_Level,Vector) |
| # endif |
| |
| #endif /* XCHAL_HAVE_INTERRUPTS */ |
