| /**************************************************************************** |
| * arch/arm/src/armv7-m/dwt.h |
| * |
| * Copyright (c) 2009 - 2013 ARM LIMITED |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - 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. |
| * - Neither the name of ARM 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 COPYRIGHT HOLDERS |
| * AND 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. |
| * |
| * Copyright (C) 2014 Pierre-noel Bouteville . All rights reserved. |
| * Author: Pierre-noel Bouteville <pnb990@gmail.com> |
| * |
| * 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_ARM_SRC_ARMV7_M_DWT_H |
| #define __ARCH_ARM_SRC_ARMV7_M_DWT_H |
| |
| /**************************************************************************** |
| * Included Files |
| ****************************************************************************/ |
| |
| #include "arm_internal.h" |
| |
| /**************************************************************************** |
| * Pre-processor Definitions |
| ****************************************************************************/ |
| |
| /* Data Watchpoint and Trace Register (DWT) Definitions *********************/ |
| |
| /* DWT Register Base Address ************************************************/ |
| |
| #define DWT_BASE (0xe0001000ul) |
| |
| /* DWT Register Addresses ***************************************************/ |
| |
| #define DWT_CTRL (DWT_BASE + 0x0000) /* Control Register */ |
| #define DWT_CYCCNT (DWT_BASE + 0x0004) /* Cycle Count Register */ |
| #define DWT_CPICNT (DWT_BASE + 0x0008) /* CPI Count Register */ |
| #define DWT_EXCCNT (DWT_BASE + 0x000c) /* Exception Overhead Count Register */ |
| #define DWT_SLEEPCNT (DWT_BASE + 0x0010) /* Sleep Count Register */ |
| #define DWT_LSUCNT (DWT_BASE + 0x0014) /* LSU Count Register */ |
| #define DWT_FOLDCNT (DWT_BASE + 0x0018) /* Folded-instruction Count Register */ |
| #define DWT_PCSR (DWT_BASE + 0x001c) /* Program Counter Sample Register */ |
| #define DWT_COMP0 (DWT_BASE + 0x0020) /* Comparator Register 0 */ |
| #define DWT_MASK0 (DWT_BASE + 0x0024) /* Mask Register 0 */ |
| #define DWT_FUNCTION0 (DWT_BASE + 0x0028) /* Function Register 0 */ |
| #define DWT_COMP1 (DWT_BASE + 0x0030) /* Comparator Register 1 */ |
| #define DWT_MASK1 (DWT_BASE + 0x0034) /* Mask Register 1 */ |
| #define DWT_FUNCTION1 (DWT_BASE + 0x0038) /* Function Register 1 */ |
| #define DWT_COMP2 (DWT_BASE + 0x0040) /* Comparator Register 2 */ |
| #define DWT_MASK2 (DWT_BASE + 0x0044) /* Mask Register 2 */ |
| #define DWT_FUNCTION2 (DWT_BASE + 0x0048) /* Function Register 2 */ |
| #define DWT_COMP3 (DWT_BASE + 0x0050) /* Comparator Register 3 */ |
| #define DWT_MASK3 (DWT_BASE + 0x0054) /* Mask Register 3 */ |
| #define DWT_FUNCTION3 (DWT_BASE + 0x0058) /* Function Register 3 */ |
| #define DWT_LAR (DWT_BASE + 0x0FB0) /* Lock Access Register */ |
| |
| #define DWT_LAR_ACCESS (0xC5ACCE55) /* Lock Access Magic Value */ |
| |
| #define DWT_GRANT_ACCESS() (putreg32(DWT_LAR_ACCESS, DWT_LAR)) |
| #define DWT_REVOKE_ACCESS() (putreg32(~DWT_LAR_ACCESS, DWT_LAR)) |
| |
| /* DWT Register Bit Field Definitions ***************************************/ |
| |
| /* DWT CTRL */ |
| |
| #define DWT_CTRL_NUMCOMP_SHIFT 28 |
| #define DWT_CTRL_NUMCOMP_MASK (0xFul << DWT_CTRL_NUMCOMP_SHIFT) |
| #define DWT_CTRL_NOTRCPKT_SHIFT 27 |
| #define DWT_CTRL_NOTRCPKT_MASK (0x1ul << DWT_CTRL_NOTRCPKT_SHIFT) |
| #define DWT_CTRL_NOEXTTRIG_SHIFT 26 |
| #define DWT_CTRL_NOEXTTRIG_MASK (0x1ul << DWT_CTRL_NOEXTTRIG_SHIFT) |
| #define DWT_CTRL_NOCYCCNT_SHIFT 25 |
| #define DWT_CTRL_NOCYCCNT_MASK (0x1ul << DWT_CTRL_NOCYCCNT_SHIFT) |
| #define DWT_CTRL_NOPRFCNT_SHIFT 24 |
| #define DWT_CTRL_NOPRFCNT_MASK (0x1ul << DWT_CTRL_NOPRFCNT_SHIFT) |
| #define DWT_CTRL_CYCEVTENA_SHIFT 22 |
| #define DWT_CTRL_CYCEVTENA_MASK (0x1ul << DWT_CTRL_CYCEVTENA_SHIFT) |
| #define DWT_CTRL_FOLDEVTENA_SHIFT 21 |
| #define DWT_CTRL_FOLDEVTENA_MASK (0x1ul << DWT_CTRL_FOLDEVTENA_SHIFT) |
| #define DWT_CTRL_LSUEVTENA_SHIFT 20 |
| #define DWT_CTRL_LSUEVTENA_MASK (0x1ul << DWT_CTRL_LSUEVTENA_SHIFT) |
| #define DWT_CTRL_SLEEPEVTENA_SHIFT 19 |
| #define DWT_CTRL_SLEEPEVTENA_MASK (0x1ul << DWT_CTRL_SLEEPEVTENA_SHIFT) |
| #define DWT_CTRL_EXCEVTENA_SHIFT 18 |
| #define DWT_CTRL_EXCEVTENA_MASK (0x1ul << DWT_CTRL_EXCEVTENA_SHIFT) |
| #define DWT_CTRL_CPIEVTENA_SHIFT 17 |
| #define DWT_CTRL_CPIEVTENA_MASK (0x1ul << DWT_CTRL_CPIEVTENA_SHIFT) |
| #define DWT_CTRL_EXCTRCENA_SHIFT 16 |
| #define DWT_CTRL_EXCTRCENA_MASK (0x1ul << DWT_CTRL_EXCTRCENA_SHIFT) |
| #define DWT_CTRL_PCSAMPLENA_SHIFT 12 |
| #define DWT_CTRL_PCSAMPLENA_MASK (0x1ul << DWT_CTRL_PCSAMPLENA_SHIFT) |
| #define DWT_CTRL_SYNCTAP_SHIFT 10 |
| #define DWT_CTRL_SYNCTAP_MASK (0x3ul << DWT_CTRL_SYNCTAP_SHIFT) |
| #define DWT_CTRL_CYCTAP_SHIFT 9 |
| #define DWT_CTRL_CYCTAP_MASK (0x1ul << DWT_CTRL_CYCTAP_SHIFT) |
| #define DWT_CTRL_POSTINIT_SHIFT 5 |
| #define DWT_CTRL_POSTINIT_MASK (0xful << DWT_CTRL_POSTINIT_SHIFT) |
| #define DWT_CTRL_POSTPRESET_SHIFT 1 |
| #define DWT_CTRL_POSTPRESET_MASK (0xful << DWT_CTRL_POSTPRESET_SHIFT) |
| #define DWT_CTRL_CYCCNTENA_SHIFT 0 |
| #define DWT_CTRL_CYCCNTENA_MASK (0x1ul << DWT_CTRL_CYCCNTENA_SHIFT) |
| |
| /* DWT CPICNT */ |
| |
| #define DWT_CPICNT_CPICNT_SHIFT 0 |
| #define DWT_CPICNT_CPICNT_MASK (0xfful << DWT_CPICNT_CPICNT_SHIFT) |
| |
| /* DWT EXCCNT */ |
| |
| #define DWT_EXCCNT_EXCCNT_SHIFT 0 |
| #define DWT_EXCCNT_EXCCNT_MASK (0xfful << DWT_EXCCNT_EXCCNT_SHIFT) |
| |
| /* DWT SLEEPCNT */ |
| |
| #define DWT_SLEEPCNT_SLEEPCNT_SHIFT 0 |
| #define DWT_SLEEPCNT_SLEEPCNT_MASK (0xfful << DWT_SLEEPCNT_SLEEPCNT_SHIFT) |
| |
| /* DWT LSUCNT */ |
| |
| #define DWT_LSUCNT_LSUCNT_SHIFT 0 |
| #define DWT_LSUCNT_LSUCNT_MASK (0xfful << DWT_LSUCNT_LSUCNT_SHIFT) |
| |
| /* DWT FOLDCNT */ |
| |
| #define DWT_FOLDCNT_FOLDCNT_SHIFT 0 |
| #define DWT_FOLDCNT_FOLDCNT_MASK (0xfful << DWT_FOLDCNT_FOLDCNT_SHIFT) |
| |
| /* DWT MASK */ |
| |
| #define DWT_MASK_MASK_SHIFT 0 |
| #define DWT_MASK_MASK_MASK (0x1ful << DWT_MASK_MASK_SHIFT) |
| |
| /* DWT FUNCTION */ |
| |
| #define DWT_FUNCTION_MATCHED_SHIFT 24 |
| #define DWT_FUNCTION_MATCHED_MASK (0x1ul << DWT_FUNCTION_MATCHED_SHIFT) |
| #define DWT_FUNCTION_DATAVADDR1_SHIFT 16 |
| #define DWT_FUNCTION_DATAVADDR1_MASK (0xful << DWT_FUNCTION_DATAVADDR1_SHIFT) |
| #define DWT_FUNCTION_DATAVADDR0_SHIFT 12 |
| #define DWT_FUNCTION_DATAVADDR0_MASK (0xful << DWT_FUNCTION_DATAVADDR0_SHIFT) |
| #define DWT_FUNCTION_DATAVSIZE_SHIFT 10 |
| #define DWT_FUNCTION_DATAVSIZE_MASK (0x3ul << DWT_FUNCTION_DATAVSIZE_SHIFT) |
| #define DWT_FUNCTION_LNK1ENA_SHIFT 9 |
| #define DWT_FUNCTION_LNK1ENA_MASK (0x1ul << DWT_FUNCTION_LNK1ENA_SHIFT) |
| #define DWT_FUNCTION_DATAVMATCH_SHIFT 8 |
| #define DWT_FUNCTION_DATAVMATCH_MASK (0x1ul << DWT_FUNCTION_DATAVMATCH_SHIFT) |
| #define DWT_FUNCTION_CYCMATCH_SHIFT 7 |
| #define DWT_FUNCTION_CYCMATCH_MASK 0x1ul << DWT_FUNCTION_CYCMATCH_SHIFT) |
| #define DWT_FUNCTION_EMITRANGE_SHIFT 5 |
| #define DWT_FUNCTION_EMITRANGE_MASK (0x1ul << DWT_FUNCTION_EMITRANGE_SHIFT) |
| #define DWT_FUNCTION_FUNCTION_SHIFT 0 |
| #define DWT_FUNCTION_FUNCTION_MASK (0xful << DWT_FUNCTION_FUNCTION_SHIFT) |
| |
| #define DWT_FUNCTION_WATCHPOINT_RO (0x05ul << DWT_FUNCTION_FUNCTION_SHIFT) |
| #define DWT_FUNCTION_WATCHPOINT_WO (0x06ul << DWT_FUNCTION_FUNCTION_SHIFT) |
| #define DWT_FUNCTION_WATCHPOINT_RW (0x07ul << DWT_FUNCTION_FUNCTION_SHIFT) |
| |
| #define DWT_DATAVSIZE_BYTE (0x00ul << DWT_FUNCTION_DATAVSIZE_SHIFT) |
| #define DWT_DATAVSIZE_HALFWORD (0x01ul << DWT_FUNCTION_DATAVSIZE_SHIFT) |
| #define DWT_DATAVSIZE_WORD (0x02ul << DWT_FUNCTION_DATAVSIZE_SHIFT) |
| |
| /**************************************************************************** |
| * Inline Functions |
| ****************************************************************************/ |
| |
| static inline void dwt_comparator_setup(int compnum, uint32_t comp, |
| uint32_t mask, uint32_t func) |
| { |
| DWT_GRANT_ACCESS(); |
| switch (compnum) |
| { |
| case 0: |
| putreg32(comp, DWT_COMP0); |
| putreg32(mask, DWT_MASK0); |
| putreg32(func, DWT_FUNCTION0); |
| break; |
| case 1: |
| putreg32(comp, DWT_COMP1); |
| putreg32(mask, DWT_MASK1); |
| putreg32(func, DWT_FUNCTION1); |
| break; |
| case 2: |
| putreg32(comp, DWT_COMP2); |
| putreg32(mask, DWT_MASK2); |
| putreg32(func, DWT_FUNCTION2); |
| break; |
| case 3: |
| putreg32(comp, DWT_COMP3); |
| putreg32(mask, DWT_MASK3); |
| putreg32(func, DWT_FUNCTION3); |
| break; |
| default: |
| break; |
| } |
| DWT_REVOKE_ACCESS(); |
| } |
| |
| static inline void dwt_comparator_reset(int compnum) |
| { |
| DWT_GRANT_ACCESS(); |
| switch (compnum) |
| { |
| case 0: |
| putreg32(0, DWT_COMP0); |
| putreg32(0, DWT_MASK0); |
| putreg32(0, DWT_FUNCTION0); |
| break; |
| case 1: |
| putreg32(0, DWT_COMP1); |
| putreg32(0, DWT_MASK1); |
| putreg32(0, DWT_FUNCTION1); |
| break; |
| case 2: |
| putreg32(0, DWT_COMP2); |
| putreg32(0, DWT_MASK2); |
| putreg32(0, DWT_FUNCTION2); |
| break; |
| case 3: |
| putreg32(0, DWT_COMP3); |
| putreg32(0, DWT_MASK3); |
| putreg32(0, DWT_FUNCTION3); |
| break; |
| default: |
| break; |
| } |
| DWT_REVOKE_ACCESS(); |
| } |
| |
| static inline uint32_t dwt_comparator_block(int compnum) |
| { |
| uint32_t funcval = 0; |
| DWT_GRANT_ACCESS(); |
| switch (compnum) |
| { |
| case 0: |
| funcval = getreg32(DWT_FUNCTION0); |
| putreg32(0, DWT_FUNCTION0); |
| break; |
| case 1: |
| funcval = getreg32(DWT_FUNCTION1); |
| putreg32(0, DWT_FUNCTION1); |
| break; |
| case 2: |
| funcval = getreg32(DWT_FUNCTION2); |
| putreg32(0, DWT_FUNCTION2); |
| break; |
| case 3: |
| funcval = getreg32(DWT_FUNCTION3); |
| putreg32(0, DWT_FUNCTION3); |
| break; |
| default: |
| break; |
| } |
| DWT_REVOKE_ACCESS(); |
| return funcval; |
| } |
| |
| static inline void dwt_comparator_restore(int compnum, uint32_t func) |
| { |
| DWT_GRANT_ACCESS(); |
| switch (compnum) |
| { |
| case 0: |
| putreg32(func, DWT_FUNCTION0); |
| break; |
| case 1: |
| putreg32(func, DWT_FUNCTION1); |
| break; |
| case 2: |
| putreg32(func, DWT_FUNCTION2); |
| break; |
| case 3: |
| putreg32(func, DWT_FUNCTION3); |
| break; |
| default: |
| break; |
| } |
| DWT_REVOKE_ACCESS(); |
| } |
| |
| #endif /* __ARCH_ARM_SRC_ARMV7_M_DWT_H */ |
