mirror of
https://github.com/apache/nuttx.git
synced 2026-06-05 15:58:59 +08:00
Beginning of context switch logic
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3012 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
@@ -51,11 +51,46 @@
|
|||||||
* Definitions
|
* Definitions
|
||||||
****************************************************************************/
|
****************************************************************************/
|
||||||
|
|
||||||
/* Register state save array indices */
|
/* Register state save array indices.
|
||||||
|
*
|
||||||
|
* The following registers are saved by the AVR32 hardware (for the case of
|
||||||
|
* interrupts only). Note the registers are order in the opposite order the
|
||||||
|
* they appear in memory (i.e., in the order of increasing address) because
|
||||||
|
* this makes it easier to following the ordering of pushing on a push-down
|
||||||
|
* stack.
|
||||||
|
*/
|
||||||
|
|
||||||
/* Size of the register state save array */
|
#define REG_R8 16
|
||||||
|
#define REG_R9 15
|
||||||
|
#define REG_R10 14
|
||||||
|
#define REG_R11 13
|
||||||
|
#define REG_R12 12
|
||||||
|
#define REG_R14 11
|
||||||
|
#define REG_R15 10
|
||||||
|
#define REG_SR 9
|
||||||
|
|
||||||
|
#define REG_LR REG_R14
|
||||||
|
#define REG_PC REG_R15
|
||||||
|
|
||||||
|
/* Additional registers saved in order have the full CPU context */
|
||||||
|
|
||||||
|
#define REG_R13 8
|
||||||
|
#define REG_SP REG_R13
|
||||||
|
|
||||||
|
#define REG_R0 7
|
||||||
|
#define REG_R1 6
|
||||||
|
#define REG_R2 5
|
||||||
|
#define REG_R3 4
|
||||||
|
#define REG_R4 3
|
||||||
|
#define REG_R5 2
|
||||||
|
#define REG_R6 1
|
||||||
|
#define REG_R7 0
|
||||||
|
|
||||||
|
/* Size of the register state save array (in 32-bit words) */
|
||||||
|
|
||||||
|
#define INTCONTEXT_REGS 8 /* r8-r12, lr, pc, sr */
|
||||||
|
#define XCPTCONTEXT_REGS 17 /* Plus r0-r7, sp */
|
||||||
|
|
||||||
#define XCPTCONTEXT_REGS 1
|
|
||||||
|
|
||||||
/****************************************************************************
|
/****************************************************************************
|
||||||
* Public Types
|
* Public Types
|
||||||
|
|||||||
@@ -39,14 +39,14 @@ HEAD_ASRC = up_nommuhead.S
|
|||||||
|
|
||||||
# Common AVR/AVR32 files
|
# Common AVR/AVR32 files
|
||||||
|
|
||||||
CMN_ASRCS = up_exceptions.S
|
CMN_ASRCS = up_exceptions.S up_fullcontextrestore.S
|
||||||
CMN_CSRCS = up_assert.c up_allocateheap.c up_blocktask.c up_copystate.c \
|
CMN_CSRCS = up_assert.c up_allocateheap.c up_blocktask.c up_copystate.c \
|
||||||
up_createstack.c up_mdelay.c up_udelay.c up_exit.c up_idle.c \
|
up_createstack.c up_mdelay.c up_udelay.c up_exit.c up_idle.c \
|
||||||
up_initialize.c up_initialstate.c up_interruptcontext.c \
|
up_initialize.c up_initialstate.c up_interruptcontext.c \
|
||||||
up_modifyreg8.c up_modifyreg16.c up_modifyreg32.c \
|
up_modifyreg8.c up_modifyreg16.c up_modifyreg32.c \
|
||||||
up_releasepending.c up_releasestack.c up_reprioritizertr.c \
|
up_releasepending.c up_releasestack.c up_reprioritizertr.c \
|
||||||
up_schedulesigaction.c up_sigdeliver.c up_unblocktask.c \
|
up_schedulesigaction.c up_sigdeliver.c up_unblocktask.c \
|
||||||
up_usestack.c up_doirq.c
|
up_usestack.c up_doirq.c
|
||||||
|
|
||||||
# Required AT91UC3 files
|
# Required AT91UC3 files
|
||||||
|
|
||||||
|
|||||||
Executable
+74
@@ -0,0 +1,74 @@
|
|||||||
|
/************************************************************************************
|
||||||
|
* arch/avr/src/at91uc3/at91uc3_adc.h
|
||||||
|
*
|
||||||
|
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||||
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
*
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in
|
||||||
|
* the documentation and/or other materials provided with the
|
||||||
|
* distribution.
|
||||||
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||||
|
* used to endorse or promote products derived from this software
|
||||||
|
* without specific prior written permission.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||||
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||||
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||||
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||||
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||||
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||||
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||||
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||||
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||||
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||||
|
* POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
#ifndef __ARCH_AVR_SRC_AT91UC3_AT91UC3_ADC_H
|
||||||
|
#define __ARCH_AVR_SRC_AT91UC3_AT91UC3_ADC_H
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Included Files
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
#include <nuttx/config.h>
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Pre-processor Definitions
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
/* Register offsets *****************************************************************/
|
||||||
|
|
||||||
|
#warning "Missing Logic"
|
||||||
|
|
||||||
|
/* Register Addresses ***************************************************************/
|
||||||
|
|
||||||
|
#warning "Missing Logic"
|
||||||
|
|
||||||
|
/* Register Bit-field Definitions ***************************************************/
|
||||||
|
|
||||||
|
#warning "Missing Logic"
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Public Types
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Public Data
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Public Functions
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
#endif /* __ARCH_AVR_SRC_AT91UC3_AT91UC3_ADC_H */
|
||||||
|
|
||||||
Executable
+74
@@ -0,0 +1,74 @@
|
|||||||
|
/************************************************************************************
|
||||||
|
* arch/avr/src/at91uc3/at91uc3_pwm.h
|
||||||
|
*
|
||||||
|
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||||
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
*
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in
|
||||||
|
* the documentation and/or other materials provided with the
|
||||||
|
* distribution.
|
||||||
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||||
|
* used to endorse or promote products derived from this software
|
||||||
|
* without specific prior written permission.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||||
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||||
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||||
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||||
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||||
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||||
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||||
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||||
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||||
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||||
|
* POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
#ifndef __ARCH_AVR_SRC_AT91UC3_AT91UC3_PWM_H
|
||||||
|
#define __ARCH_AVR_SRC_AT91UC3_AT91UC3_PWM_H
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Included Files
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
#include <nuttx/config.h>
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Pre-processor Definitions
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
/* Register offsets *****************************************************************/
|
||||||
|
|
||||||
|
#warning "Missing Logic"
|
||||||
|
|
||||||
|
/* Register Addresses ***************************************************************/
|
||||||
|
|
||||||
|
#warning "Missing Logic"
|
||||||
|
|
||||||
|
/* Register Bit-field Definitions ***************************************************/
|
||||||
|
|
||||||
|
#warning "Missing Logic"
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Public Types
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Public Data
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Public Functions
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
#endif /* __ARCH_AVR_SRC_AT91UC3_AT91UC3_PWM_H */
|
||||||
|
|
||||||
Executable
+74
@@ -0,0 +1,74 @@
|
|||||||
|
/************************************************************************************
|
||||||
|
* arch/avr/src/at91uc3/at91uc3_ssc.h
|
||||||
|
*
|
||||||
|
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||||
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
*
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in
|
||||||
|
* the documentation and/or other materials provided with the
|
||||||
|
* distribution.
|
||||||
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||||
|
* used to endorse or promote products derived from this software
|
||||||
|
* without specific prior written permission.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||||
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||||
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||||
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||||
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||||
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||||
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||||
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||||
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||||
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||||
|
* POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
#ifndef __ARCH_AVR_SRC_AT91UC3_AT91UC3_SSC_H
|
||||||
|
#define __ARCH_AVR_SRC_AT91UC3_AT91UC3_SSC_H
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Included Files
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
#include <nuttx/config.h>
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Pre-processor Definitions
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
/* Register offsets *****************************************************************/
|
||||||
|
|
||||||
|
#warning "Missing logic"
|
||||||
|
|
||||||
|
/* Register Addresses ***************************************************************/
|
||||||
|
|
||||||
|
#warning "Missing logic"
|
||||||
|
|
||||||
|
/* Register Bit-field Definitions ***************************************************/
|
||||||
|
|
||||||
|
#warning "Missing logic"
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Public Types
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Public Data
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Public Functions
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
#endif /* __ARCH_AVR_SRC_AT91UC3_AT91UC3_SSC_H */
|
||||||
|
|
||||||
Executable
+74
@@ -0,0 +1,74 @@
|
|||||||
|
/************************************************************************************
|
||||||
|
* arch/avr/src/at91uc3/at91uc3_tc.h
|
||||||
|
*
|
||||||
|
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||||
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
*
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in
|
||||||
|
* the documentation and/or other materials provided with the
|
||||||
|
* distribution.
|
||||||
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||||
|
* used to endorse or promote products derived from this software
|
||||||
|
* without specific prior written permission.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||||
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||||
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||||
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||||
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||||
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||||
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||||
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||||
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||||
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||||
|
* POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
#ifndef __ARCH_AVR_SRC_AT91UC3_AT91UC3_TC_H
|
||||||
|
#define __ARCH_AVR_SRC_AT91UC3_AT91UC3_TC_H
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Included Files
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
#include <nuttx/config.h>
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Pre-processor Definitions
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
/* Register offsets *****************************************************************/
|
||||||
|
|
||||||
|
#warning "Missing Logic"
|
||||||
|
|
||||||
|
/* Register Addresses ***************************************************************/
|
||||||
|
|
||||||
|
#warning "Missing Logic"
|
||||||
|
|
||||||
|
/* Register Bit-field Definitions ***************************************************/
|
||||||
|
|
||||||
|
#warning "Missing Logic"
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Public Types
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Public Data
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Public Functions
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
#endif /* __ARCH_AVR_SRC_AT91UC3_AT91UC3_TC_H */
|
||||||
|
|
||||||
Executable
+74
@@ -0,0 +1,74 @@
|
|||||||
|
/************************************************************************************
|
||||||
|
* arch/avr/src/at91uc3/at91uc3_usbb.h
|
||||||
|
*
|
||||||
|
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||||
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
*
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in
|
||||||
|
* the documentation and/or other materials provided with the
|
||||||
|
* distribution.
|
||||||
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||||
|
* used to endorse or promote products derived from this software
|
||||||
|
* without specific prior written permission.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||||
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||||
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||||
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||||
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||||
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||||
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||||
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||||
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||||
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||||
|
* POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
#ifndef __ARCH_AVR_SRC_AT91UC3_AT91UC3_USBB_H
|
||||||
|
#define __ARCH_AVR_SRC_AT91UC3_AT91UC3_USBB_H
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Included Files
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
#include <nuttx/config.h>
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Pre-processor Definitions
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
/* Register offsets *****************************************************************/
|
||||||
|
|
||||||
|
#warning "Missing Logic"
|
||||||
|
|
||||||
|
/* Register Addresses ***************************************************************/
|
||||||
|
|
||||||
|
#warning "Missing Logic"
|
||||||
|
|
||||||
|
/* Register Bit-field Definitions ***************************************************/
|
||||||
|
|
||||||
|
#warning "Missing Logic"
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Public Types
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Public Data
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
/************************************************************************************
|
||||||
|
* Public Functions
|
||||||
|
************************************************************************************/
|
||||||
|
|
||||||
|
#endif /* __ARCH_AVR_SRC_AT91UC3_AT91UC3_USBB_H */
|
||||||
|
|
||||||
@@ -40,9 +40,6 @@
|
|||||||
#include <nuttx/config.h>
|
#include <nuttx/config.h>
|
||||||
#include <arch/avr32/avr32.h>
|
#include <arch/avr32/avr32.h>
|
||||||
|
|
||||||
#include "up_internal.h"
|
|
||||||
#include "up_arch.h"
|
|
||||||
|
|
||||||
/****************************************************************************
|
/****************************************************************************
|
||||||
* External Symbols
|
* External Symbols
|
||||||
****************************************************************************/
|
****************************************************************************/
|
||||||
@@ -209,18 +206,52 @@ avr32_excptcommon:
|
|||||||
* Common Event Handling Logic
|
* Common Event Handling Logic
|
||||||
****************************************************************************/
|
****************************************************************************/
|
||||||
|
|
||||||
/* After this point, logic to manage interrupts and exceptions is equivalent.
|
/* After this point, logic to manage interrupts and exceptions is */
|
||||||
* Here we have:
|
/* equivalent. Here we have: */
|
||||||
*
|
/* */
|
||||||
* R8-R12, LR, SR, and the PC on the stack.
|
/* R8-R12, LR, SR, and the PC on the stack. */
|
||||||
* R12 holds the IRQ number to be dispatched.
|
/* R12 holds the IRQ number to be dispatched. */
|
||||||
*
|
/* */
|
||||||
* This function will finish construction of the register save structure and
|
/* The context save area looks like this: */
|
||||||
* call the IRQ dispatching logic.
|
/* xx xx xx xx xx xx xx xx xx SR PC LR 12 11 10 09 08 */
|
||||||
*/
|
/* ^ +8*4 */
|
||||||
|
/* This function will finish construction of the register save structure */
|
||||||
|
/* and call the IRQ dispatching logic. */
|
||||||
|
|
||||||
avr32_common:
|
avr32_common:
|
||||||
|
/* Save the SP (as it was before the interrupt) in the conext save */
|
||||||
|
/* structure. */
|
||||||
|
/* xx xx xx xx xx xx xx xx SP SR PC LR 12 11 10 09 08 */
|
||||||
|
/* ^sp */
|
||||||
|
|
||||||
|
mov r8, sp
|
||||||
|
sub r8, -8*4
|
||||||
|
st.w --sp, r8
|
||||||
|
|
||||||
|
/* Saving R0-R7 is all that is left to complete the context save. */
|
||||||
|
/* 07 06 05 04 03 02 01 00 SP SR PC LR 12 11 10 09 08 */
|
||||||
|
/* ^sp */
|
||||||
|
|
||||||
|
stm --sp, r0-r7
|
||||||
|
|
||||||
|
/* Now call up_doirq passing the IRQ number in r12 and the base address */
|
||||||
|
/* of the register context save area in r13. */
|
||||||
|
|
||||||
|
mov r12, sp
|
||||||
|
mcall .Lup_doirq
|
||||||
|
|
||||||
#warning "Missing Logic"
|
#warning "Missing Logic"
|
||||||
rjmp $
|
rjmp $
|
||||||
|
|
||||||
|
/* On return, r12 will hold the new address of the register context save
|
||||||
|
* area. On an interrupt contex switch, this will (1) not be the same
|
||||||
|
* as the value of r12 passed to up_doirq(), and (2) may not reside on
|
||||||
|
* a stack.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#warning "Missing Logic"
|
||||||
|
|
||||||
|
.Lup_doirq:
|
||||||
|
.word up_doirq
|
||||||
.end
|
.end
|
||||||
|
|
||||||
|
|||||||
Executable
+113
@@ -0,0 +1,113 @@
|
|||||||
|
/****************************************************************************
|
||||||
|
* arch/avr32/src/avr32/up_fullcontextrestore.S
|
||||||
|
*
|
||||||
|
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
|
||||||
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
*
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in
|
||||||
|
* the documentation and/or other materials provided with the
|
||||||
|
* distribution.
|
||||||
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||||
|
* used to endorse or promote products derived from this software
|
||||||
|
* without specific prior written permission.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||||
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||||
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||||
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||||
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||||
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||||
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||||
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||||
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||||
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||||
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||||
|
* POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Included Files
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
#include <nuttx/config.h>
|
||||||
|
#include <arch/avr32/avr32.h>
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* External Symbols
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Macros
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Name: up_fullcontextrestore
|
||||||
|
*
|
||||||
|
* C Prototype:
|
||||||
|
* void up_fullcontextrestore(uint32_t *regs);
|
||||||
|
*
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
.text
|
||||||
|
.global up_fullcontextrestore
|
||||||
|
.type up_fullcontextrestore, @function
|
||||||
|
up_fullcontextrestore:
|
||||||
|
|
||||||
|
/* Initially, r12 points to the r7 save area. Restore r0-r7. */
|
||||||
|
/* 07 06 05 04 03 02 01 00 xx xx xx xx xx xx xx xx xx */
|
||||||
|
/* ^r12 */
|
||||||
|
|
||||||
|
ldm r12++, r0-r7
|
||||||
|
|
||||||
|
/* Now, r12 points to the SP (r13) save area. Recover the value of */
|
||||||
|
/* the stack pointer (r13). We will need to save some temporaries on */
|
||||||
|
/* the final stack. */
|
||||||
|
/* 07 06 05 04 03 02 01 00 SP xx xx xx xx xx xx xx xx */
|
||||||
|
/* ^r12 */
|
||||||
|
|
||||||
|
ld.w sp, r12++
|
||||||
|
|
||||||
|
/* Now r12 points to the SR save area. Skip over the SR for now. */
|
||||||
|
/* 07 06 05 04 03 02 01 00 SP xx xx xx xx xx xx xx xx */
|
||||||
|
/* ^r12 */
|
||||||
|
|
||||||
|
sub r12, -2*4
|
||||||
|
|
||||||
|
/* Get the pc, lr, and r12 (in r8, r9, and r10) and move them to the */
|
||||||
|
/* stack. We can now use r12 and lr as scratch registers. */
|
||||||
|
/* 07 06 05 04 03 02 01 00 SP xx PC LR 12 xx xx xx xx */
|
||||||
|
/* ^r12 */
|
||||||
|
|
||||||
|
ldm r12++, r8-r10
|
||||||
|
stm --sp, r8-r10
|
||||||
|
|
||||||
|
/* Now r12 now points to the r11 save area. Restore r8-r11. */
|
||||||
|
/* 07 06 05 04 03 02 01 00 SP xx PC LR 12 11 10 09 08 */
|
||||||
|
/* ^r12 */
|
||||||
|
|
||||||
|
ldm r12++, r8-r11
|
||||||
|
|
||||||
|
/* r12 now points +4 beyond the end of the register save area. Restore */
|
||||||
|
/* SR. */
|
||||||
|
/* 07 06 05 04 03 02 01 00 SP SR PC LR 12 11 10 09 08 */
|
||||||
|
/* ^r12-4*8 ^r12 */
|
||||||
|
|
||||||
|
ld.w lr, r12[-4*8]
|
||||||
|
mtsr AVR32_SR, lr
|
||||||
|
|
||||||
|
/* Restore PC, LR and r12. Hmmm.. I need to study the behaviour of ldm */
|
||||||
|
/* when r12,lr, and pc on in ldm reglist16. I'm not sure that I want */
|
||||||
|
/* that behavior. */
|
||||||
|
|
||||||
|
/* ldm sp++, r12, lr, pc */
|
||||||
|
ldm sp++, r12, lr
|
||||||
|
ld.w pc, sp++
|
||||||
|
.end
|
||||||
Reference in New Issue
Block a user