不韋 呂 / F746_AcousticEffector_MIC

Audio singal input and output example for DISCO-F746. Input: MEMS mic, Output: CN10 OUT, Acoustic effect: echo and frequency shift. DISCO-F746 によるオーディオ信号入出力．入力：MEMS マイク，出力：CN10 OUT，音響効果：エコー，周波数変換．

Dependencies:   F746_GUI F746_SAI_IO

mbed_src_STM32F7/api/CThunk.h@10:56f2f01df983, 2017-04-10 (annotated)

Committer:
MikamiUitOpen
Date:
Mon Apr 10 13:44:13 2017 +0000
Revision:
10:56f2f01df983
Parent:
6:38f7dce055d0 
11

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 6:38f7dce055d0 1 /* General C++ Object Thunking class
MikamiUitOpen 6:38f7dce055d0 2 *
MikamiUitOpen 6:38f7dce055d0 3 * - allows direct callbacks to non-static C++ class functions
MikamiUitOpen 6:38f7dce055d0 4 * - keeps track for the corresponding class instance
MikamiUitOpen 6:38f7dce055d0 5 * - supports an optional context parameter for the called function
MikamiUitOpen 6:38f7dce055d0 6 * - ideally suited for class object receiving interrupts (NVIC_SetVector)
MikamiUitOpen 6:38f7dce055d0 7 *
MikamiUitOpen 6:38f7dce055d0 8 * Copyright (c) 2014-2015 ARM Limited
MikamiUitOpen 6:38f7dce055d0 9 *
MikamiUitOpen 6:38f7dce055d0 10 * Licensed under the Apache License, Version 2.0 (the "License");
MikamiUitOpen 6:38f7dce055d0 11 * you may not use this file except in compliance with the License.
MikamiUitOpen 6:38f7dce055d0 12 * You may obtain a copy of the License at
MikamiUitOpen 6:38f7dce055d0 13 *
MikamiUitOpen 6:38f7dce055d0 14 * http://www.apache.org/licenses/LICENSE-2.0
MikamiUitOpen 6:38f7dce055d0 15 *
MikamiUitOpen 6:38f7dce055d0 16 * Unless required by applicable law or agreed to in writing, software
MikamiUitOpen 6:38f7dce055d0 17 * distributed under the License is distributed on an "AS IS" BASIS,
MikamiUitOpen 6:38f7dce055d0 18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
MikamiUitOpen 6:38f7dce055d0 19 * See the License for the specific language governing permissions and
MikamiUitOpen 6:38f7dce055d0 20 * limitations under the License.
MikamiUitOpen 6:38f7dce055d0 21 */
MikamiUitOpen 6:38f7dce055d0 22 #ifndef __CTHUNK_H__
MikamiUitOpen 6:38f7dce055d0 23 #define __CTHUNK_H__
MikamiUitOpen 6:38f7dce055d0 24
MikamiUitOpen 6:38f7dce055d0 25 #define CTHUNK_ADDRESS 1
MikamiUitOpen 6:38f7dce055d0 26
MikamiUitOpen 6:38f7dce055d0 27 #if (defined(__CORTEX_M3) || defined(__CORTEX_M4) || defined(__thumb2__)) && ! defined(__CORTEX_A9)
MikamiUitOpen 6:38f7dce055d0 28 #define CTHUNK_VARIABLES volatile uint32_t code[1]
MikamiUitOpen 6:38f7dce055d0 29 /**
MikamiUitOpen 6:38f7dce055d0 30 * CTHUNK disassembly for Cortex-M3/M4 (thumb2):
MikamiUitOpen 6:38f7dce055d0 31 * * ldm.w pc,{r0,r1,r2,pc}
MikamiUitOpen 6:38f7dce055d0 32 *
MikamiUitOpen 6:38f7dce055d0 33 * This instruction loads the arguments for the static thunking function to r0-r2, and
MikamiUitOpen 6:38f7dce055d0 34 * branches to that function by loading its address into PC.
MikamiUitOpen 6:38f7dce055d0 35 *
MikamiUitOpen 6:38f7dce055d0 36 * This is safe for both regular calling and interrupt calling, since it only touches scratch registers
MikamiUitOpen 6:38f7dce055d0 37 * which should be saved by the caller, and are automatically saved as part of the IRQ context switch.
MikamiUitOpen 6:38f7dce055d0 38 */
MikamiUitOpen 6:38f7dce055d0 39 #define CTHUNK_ASSIGMENT m_thunk.code[0] = 0x8007E89F
MikamiUitOpen 6:38f7dce055d0 40
MikamiUitOpen 6:38f7dce055d0 41 #elif defined(__CORTEX_M0PLUS) || defined(__CORTEX_M0) || defined(__CORTEX_A9)
MikamiUitOpen 6:38f7dce055d0 42 /*
MikamiUitOpen 6:38f7dce055d0 43 * CTHUNK disassembly for Cortex M0 (thumb):
MikamiUitOpen 6:38f7dce055d0 44 * * push {r0,r1,r2,r3,r4,lr} save touched registers and return address
MikamiUitOpen 6:38f7dce055d0 45 * * movs r4,#4 set up address to load arguments from (immediately following this code block) (1)
MikamiUitOpen 6:38f7dce055d0 46 * * add r4,pc set up address to load arguments from (immediately following this code block) (2)
MikamiUitOpen 6:38f7dce055d0 47 * * ldm r4!,{r0,r1,r2,r3} load arguments for static thunk function
MikamiUitOpen 6:38f7dce055d0 48 * * blx r3 call static thunk function
MikamiUitOpen 6:38f7dce055d0 49 * * pop {r0,r1,r2,r3,r4,pc} restore scratch registers and return from function
MikamiUitOpen 6:38f7dce055d0 50 */
MikamiUitOpen 6:38f7dce055d0 51 #define CTHUNK_VARIABLES volatile uint32_t code[3]
MikamiUitOpen 6:38f7dce055d0 52 #define CTHUNK_ASSIGMENT do { \
MikamiUitOpen 6:38f7dce055d0 53 m_thunk.code[0] = 0x2404B51F; \
MikamiUitOpen 6:38f7dce055d0 54 m_thunk.code[1] = 0xCC0F447C; \
MikamiUitOpen 6:38f7dce055d0 55 m_thunk.code[2] = 0xBD1F4798; \
MikamiUitOpen 6:38f7dce055d0 56 } while (0)
MikamiUitOpen 6:38f7dce055d0 57
MikamiUitOpen 6:38f7dce055d0 58 #else
MikamiUitOpen 6:38f7dce055d0 59 #error "Target is not currently suported."
MikamiUitOpen 6:38f7dce055d0 60 #endif
MikamiUitOpen 6:38f7dce055d0 61
MikamiUitOpen 6:38f7dce055d0 62 /* IRQ/Exception compatible thunk entry function */
MikamiUitOpen 6:38f7dce055d0 63 typedef void (*CThunkEntry)(void);
MikamiUitOpen 6:38f7dce055d0 64
MikamiUitOpen 6:38f7dce055d0 65 template<class T>
MikamiUitOpen 6:38f7dce055d0 66 class CThunk
MikamiUitOpen 6:38f7dce055d0 67 {
MikamiUitOpen 6:38f7dce055d0 68 public:
MikamiUitOpen 6:38f7dce055d0 69 typedef void (T::*CCallbackSimple)(void);
MikamiUitOpen 6:38f7dce055d0 70 typedef void (T::*CCallback)(void* context);
MikamiUitOpen 6:38f7dce055d0 71
MikamiUitOpen 6:38f7dce055d0 72 inline CThunk(T *instance)
MikamiUitOpen 6:38f7dce055d0 73 {
MikamiUitOpen 6:38f7dce055d0 74 init(instance, NULL, NULL);
MikamiUitOpen 6:38f7dce055d0 75 }
MikamiUitOpen 6:38f7dce055d0 76
MikamiUitOpen 6:38f7dce055d0 77 inline CThunk(T *instance, CCallback callback)
MikamiUitOpen 6:38f7dce055d0 78 {
MikamiUitOpen 6:38f7dce055d0 79 init(instance, callback, NULL);
MikamiUitOpen 6:38f7dce055d0 80 }
MikamiUitOpen 6:38f7dce055d0 81
MikamiUitOpen 6:38f7dce055d0 82 ~CThunk() {
MikamiUitOpen 6:38f7dce055d0 83
MikamiUitOpen 6:38f7dce055d0 84 }
MikamiUitOpen 6:38f7dce055d0 85
MikamiUitOpen 6:38f7dce055d0 86 inline CThunk(T *instance, CCallbackSimple callback)
MikamiUitOpen 6:38f7dce055d0 87 {
MikamiUitOpen 6:38f7dce055d0 88 init(instance, (CCallback)callback, NULL);
MikamiUitOpen 6:38f7dce055d0 89 }
MikamiUitOpen 6:38f7dce055d0 90
MikamiUitOpen 6:38f7dce055d0 91 inline CThunk(T &instance, CCallback callback)
MikamiUitOpen 6:38f7dce055d0 92 {
MikamiUitOpen 6:38f7dce055d0 93 init(instance, callback, NULL);
MikamiUitOpen 6:38f7dce055d0 94 }
MikamiUitOpen 6:38f7dce055d0 95
MikamiUitOpen 6:38f7dce055d0 96 inline CThunk(T &instance, CCallbackSimple callback)
MikamiUitOpen 6:38f7dce055d0 97 {
MikamiUitOpen 6:38f7dce055d0 98 init(instance, (CCallback)callback, NULL);
MikamiUitOpen 6:38f7dce055d0 99 }
MikamiUitOpen 6:38f7dce055d0 100
MikamiUitOpen 6:38f7dce055d0 101 inline CThunk(T &instance, CCallback callback, void* context)
MikamiUitOpen 6:38f7dce055d0 102 {
MikamiUitOpen 6:38f7dce055d0 103 init(instance, callback, context);
MikamiUitOpen 6:38f7dce055d0 104 }
MikamiUitOpen 6:38f7dce055d0 105
MikamiUitOpen 6:38f7dce055d0 106 inline void callback(CCallback callback)
MikamiUitOpen 6:38f7dce055d0 107 {
MikamiUitOpen 6:38f7dce055d0 108 m_callback = callback;
MikamiUitOpen 6:38f7dce055d0 109 }
MikamiUitOpen 6:38f7dce055d0 110
MikamiUitOpen 6:38f7dce055d0 111 inline void callback(CCallbackSimple callback)
MikamiUitOpen 6:38f7dce055d0 112 {
MikamiUitOpen 6:38f7dce055d0 113 m_callback = (CCallback)callback;
MikamiUitOpen 6:38f7dce055d0 114 }
MikamiUitOpen 6:38f7dce055d0 115
MikamiUitOpen 6:38f7dce055d0 116 inline void context(void* context)
MikamiUitOpen 6:38f7dce055d0 117 {
MikamiUitOpen 6:38f7dce055d0 118 m_thunk.context = (uint32_t)context;
MikamiUitOpen 6:38f7dce055d0 119 }
MikamiUitOpen 6:38f7dce055d0 120
MikamiUitOpen 6:38f7dce055d0 121 inline void context(uint32_t context)
MikamiUitOpen 6:38f7dce055d0 122 {
MikamiUitOpen 6:38f7dce055d0 123 m_thunk.context = context;
MikamiUitOpen 6:38f7dce055d0 124 }
MikamiUitOpen 6:38f7dce055d0 125
MikamiUitOpen 6:38f7dce055d0 126 inline uint32_t entry(void)
MikamiUitOpen 6:38f7dce055d0 127 {
MikamiUitOpen 6:38f7dce055d0 128 return (((uint32_t)&m_thunk)|CTHUNK_ADDRESS);
MikamiUitOpen 6:38f7dce055d0 129 }
MikamiUitOpen 6:38f7dce055d0 130
MikamiUitOpen 6:38f7dce055d0 131 /* get thunk entry point for connecting rhunk to an IRQ table */
MikamiUitOpen 6:38f7dce055d0 132 inline operator CThunkEntry(void)
MikamiUitOpen 6:38f7dce055d0 133 {
MikamiUitOpen 6:38f7dce055d0 134 return (CThunkEntry)entry();
MikamiUitOpen 6:38f7dce055d0 135 }
MikamiUitOpen 6:38f7dce055d0 136
MikamiUitOpen 6:38f7dce055d0 137 /* get thunk entry point for connecting rhunk to an IRQ table */
MikamiUitOpen 6:38f7dce055d0 138 inline operator uint32_t(void)
MikamiUitOpen 6:38f7dce055d0 139 {
MikamiUitOpen 6:38f7dce055d0 140 return entry();
MikamiUitOpen 6:38f7dce055d0 141 }
MikamiUitOpen 6:38f7dce055d0 142
MikamiUitOpen 6:38f7dce055d0 143 /* simple test function */
MikamiUitOpen 6:38f7dce055d0 144 inline void call(void)
MikamiUitOpen 6:38f7dce055d0 145 {
MikamiUitOpen 6:38f7dce055d0 146 (((CThunkEntry)(entry()))());
MikamiUitOpen 6:38f7dce055d0 147 }
MikamiUitOpen 6:38f7dce055d0 148
MikamiUitOpen 6:38f7dce055d0 149 private:
MikamiUitOpen 6:38f7dce055d0 150 T* m_instance;
MikamiUitOpen 6:38f7dce055d0 151 volatile CCallback m_callback;
MikamiUitOpen 6:38f7dce055d0 152
MikamiUitOpen 6:38f7dce055d0 153 // TODO: this needs proper fix, to refactor toolchain header file and all its use
MikamiUitOpen 6:38f7dce055d0 154 // PACKED there is not defined properly for IAR
MikamiUitOpen 6:38f7dce055d0 155 #if defined (__ICCARM__)
MikamiUitOpen 6:38f7dce055d0 156 typedef __packed struct
MikamiUitOpen 6:38f7dce055d0 157 {
MikamiUitOpen 6:38f7dce055d0 158 CTHUNK_VARIABLES;
MikamiUitOpen 6:38f7dce055d0 159 volatile uint32_t instance;
MikamiUitOpen 6:38f7dce055d0 160 volatile uint32_t context;
MikamiUitOpen 6:38f7dce055d0 161 volatile uint32_t callback;
MikamiUitOpen 6:38f7dce055d0 162 volatile uint32_t trampoline;
MikamiUitOpen 6:38f7dce055d0 163 } CThunkTrampoline;
MikamiUitOpen 6:38f7dce055d0 164 #else
MikamiUitOpen 6:38f7dce055d0 165 typedef struct
MikamiUitOpen 6:38f7dce055d0 166 {
MikamiUitOpen 6:38f7dce055d0 167 CTHUNK_VARIABLES;
MikamiUitOpen 6:38f7dce055d0 168 volatile uint32_t instance;
MikamiUitOpen 6:38f7dce055d0 169 volatile uint32_t context;
MikamiUitOpen 6:38f7dce055d0 170 volatile uint32_t callback;
MikamiUitOpen 6:38f7dce055d0 171 volatile uint32_t trampoline;
MikamiUitOpen 6:38f7dce055d0 172 } __attribute__((__packed__)) CThunkTrampoline;
MikamiUitOpen 6:38f7dce055d0 173 #endif
MikamiUitOpen 6:38f7dce055d0 174
MikamiUitOpen 6:38f7dce055d0 175 static void trampoline(T* instance, void* context, CCallback* callback)
MikamiUitOpen 6:38f7dce055d0 176 {
MikamiUitOpen 6:38f7dce055d0 177 if(instance && *callback) {
MikamiUitOpen 6:38f7dce055d0 178 (static_cast<T*>(instance)->**callback)(context);
MikamiUitOpen 6:38f7dce055d0 179 }
MikamiUitOpen 6:38f7dce055d0 180 }
MikamiUitOpen 6:38f7dce055d0 181
MikamiUitOpen 6:38f7dce055d0 182 volatile CThunkTrampoline m_thunk;
MikamiUitOpen 6:38f7dce055d0 183
MikamiUitOpen 6:38f7dce055d0 184 inline void init(T *instance, CCallback callback, void* context)
MikamiUitOpen 6:38f7dce055d0 185 {
MikamiUitOpen 6:38f7dce055d0 186 /* remember callback - need to add this level of redirection
MikamiUitOpen 6:38f7dce055d0 187 as pointer size for member functions differs between platforms */
MikamiUitOpen 6:38f7dce055d0 188 m_callback = callback;
MikamiUitOpen 6:38f7dce055d0 189
MikamiUitOpen 6:38f7dce055d0 190 /* populate thunking trampoline */
MikamiUitOpen 6:38f7dce055d0 191 CTHUNK_ASSIGMENT;
MikamiUitOpen 6:38f7dce055d0 192 m_thunk.context = (uint32_t)context;
MikamiUitOpen 6:38f7dce055d0 193 m_thunk.instance = (uint32_t)instance;
MikamiUitOpen 6:38f7dce055d0 194 m_thunk.callback = (uint32_t)&m_callback;
MikamiUitOpen 6:38f7dce055d0 195 m_thunk.trampoline = (uint32_t)&trampoline;
MikamiUitOpen 6:38f7dce055d0 196
MikamiUitOpen 6:38f7dce055d0 197 #if defined(__CORTEX_A9)
MikamiUitOpen 6:38f7dce055d0 198 /* Data cache clean */
MikamiUitOpen 6:38f7dce055d0 199 /* Cache control */
MikamiUitOpen 6:38f7dce055d0 200 {
MikamiUitOpen 6:38f7dce055d0 201 uint32_t start_addr = (uint32_t)&m_thunk & 0xFFFFFFE0;
MikamiUitOpen 6:38f7dce055d0 202 uint32_t end_addr = (uint32_t)&m_thunk + sizeof(m_thunk);
MikamiUitOpen 6:38f7dce055d0 203 uint32_t addr;
MikamiUitOpen 6:38f7dce055d0 204
MikamiUitOpen 6:38f7dce055d0 205 /* Data cache clean and invalid */
MikamiUitOpen 6:38f7dce055d0 206 for (addr = start_addr; addr < end_addr; addr += 0x20) {
MikamiUitOpen 6:38f7dce055d0 207 __v7_clean_inv_dcache_mva((void *)addr);
MikamiUitOpen 6:38f7dce055d0 208 }
MikamiUitOpen 6:38f7dce055d0 209 /* Instruction cache invalid */
MikamiUitOpen 6:38f7dce055d0 210 __v7_inv_icache_all();
MikamiUitOpen 6:38f7dce055d0 211 __ca9u_inv_tlb_all();
MikamiUitOpen 6:38f7dce055d0 212 __v7_inv_btac();
MikamiUitOpen 6:38f7dce055d0 213 }
MikamiUitOpen 6:38f7dce055d0 214 #endif
MikamiUitOpen 6:38f7dce055d0 215 __ISB();
MikamiUitOpen 6:38f7dce055d0 216 __DSB();
MikamiUitOpen 6:38f7dce055d0 217 }
MikamiUitOpen 6:38f7dce055d0 218 };
MikamiUitOpen 6:38f7dce055d0 219
MikamiUitOpen 6:38f7dce055d0 220 #endif/*__CTHUNK_H__*/