diff options
Diffstat (limited to 'Marlin/src/sd/usb_flashdrive/lib-uhs3/dyn_SWI')
| -rw-r--r-- | Marlin/src/sd/usb_flashdrive/lib-uhs3/dyn_SWI/SWI_INLINE.h | 244 | ||||
| -rw-r--r-- | Marlin/src/sd/usb_flashdrive/lib-uhs3/dyn_SWI/dyn_SWI.h | 172 |
2 files changed, 416 insertions, 0 deletions
diff --git a/Marlin/src/sd/usb_flashdrive/lib-uhs3/dyn_SWI/SWI_INLINE.h b/Marlin/src/sd/usb_flashdrive/lib-uhs3/dyn_SWI/SWI_INLINE.h new file mode 100644 index 0000000..f86054c --- /dev/null +++ b/Marlin/src/sd/usb_flashdrive/lib-uhs3/dyn_SWI/SWI_INLINE.h @@ -0,0 +1,244 @@ +/* + * File: SWI_INLINE.h + * Author: xxxajk@gmail.com + * + * Created on December 5, 2014, 9:40 AM + * + * This is the actual library. + * There are no 'c' or 'cpp' files. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#ifdef DYN_SWI_H +#ifndef SWI_INLINE_H +#define SWI_INLINE_H + +#ifndef SWI_MAXIMUM_ALLOWED +#define SWI_MAXIMUM_ALLOWED 4 +#endif + + + +#if defined(__arm__) || defined(ARDUINO_ARCH_PIC32) +static char dyn_SWI_initied = 0; +static dyn_SWI* dyn_SWI_LIST[SWI_MAXIMUM_ALLOWED]; +static dyn_SWI* dyn_SWI_EXEC[SWI_MAXIMUM_ALLOWED]; +#ifdef __arm__ +#ifdef __USE_CMSIS_VECTORS__ +extern "C" { + void (*_VectorsRam[VECTORTABLE_SIZE])(void)__attribute__((aligned(VECTORTABLE_ALIGNMENT))); +} +#else + +__attribute__((always_inline)) static inline void __DSB() { + __asm__ volatile ("dsb"); +} +#endif // defined(__USE_CMSIS_VECTORS__) +#else // defined(__arm__) +__attribute__((always_inline)) static inline void __DSB() { + __asm__ volatile ("sync" : : : "memory"); +} +#endif // defined(__arm__) + +/** + * Execute queued class ISR routines. + */ +#ifdef ARDUINO_ARCH_PIC32 +static p32_regset *ifs = ((p32_regset *) & IFS0) + (SWI_IRQ_NUM / 32); //interrupt flag register set +static p32_regset *iec = ((p32_regset *) & IEC0) + (SWI_IRQ_NUM / 32); //interrupt enable control reg set +static uint32_t swibit = 1 << (SWI_IRQ_NUM % 32); + +void +#ifdef __PIC32MZXX__ + __attribute__((nomips16,at_vector(SWI_VECTOR),interrupt(SWI_IPL))) +#else + __attribute__((interrupt(),nomips16)) +#endif + softISR() { +#else +#ifdef ARDUINO_spresense_ast +unsigned int softISR() { +#else +void softISR() { +#endif +#endif + + // + // TO-DO: Perhaps limit to 8, and inline this? + // + + + // Make a working copy, while clearing the queue. + noInterrupts(); +#ifdef ARDUINO_ARCH_PIC32 + //ifs->clr = swibit; +#endif + for(int i = 0; i < SWI_MAXIMUM_ALLOWED; i++) { + dyn_SWI_EXEC[i] = dyn_SWI_LIST[i]; + dyn_SWI_LIST[i] = NULL; + } + __DSB(); + interrupts(); + + // Execute each class SWI + for(int i = 0; i < SWI_MAXIMUM_ALLOWED; i++) { + if(dyn_SWI_EXEC[i]) { +#ifdef __DYN_SWI_DEBUG_LED__ + digitalWrite(__DYN_SWI_DEBUG_LED__, HIGH); +#endif + dyn_SWI_EXEC[i]->dyn_SWISR(); +#ifdef __DYN_SWI_DEBUG_LED__ + digitalWrite(__DYN_SWI_DEBUG_LED__, LOW); +#endif + } + } +#ifdef ARDUINO_ARCH_PIC32 + noInterrupts(); + if(!dyn_SWI_EXEC[0]) ifs->clr = swibit; + interrupts(); +#endif +#ifdef ARDUINO_spresense_ast + return 0; +#endif +} + +#define DDSB() __DSB() +#endif + + +#ifdef __arm__ +#ifndef interruptsStatus +#define interruptsStatus() __interruptsStatus() +static inline unsigned char __interruptsStatus() __attribute__((always_inline, unused)); + +static inline unsigned char __interruptsStatus() { + unsigned int primask; + asm volatile ("mrs %0, primask" : "=r" (primask)); + if(primask) return 0; + return 1; +} +#endif + +/** + * Initialize the Dynamic (class) Software Interrupt + */ +static void Init_dyn_SWI() { + if(!dyn_SWI_initied) { +#ifdef __USE_CMSIS_VECTORS__ + uint32_t *X_Vectors = (uint32_t*)SCB->VTOR; + for(int i = 0; i < VECTORTABLE_SIZE; i++) { + _VectorsRam[i] = reinterpret_cast<void (*)()>(X_Vectors[i]); /* copy vector table to RAM */ + } + /* relocate vector table */ + noInterrupts(); + SCB->VTOR = reinterpret_cast<uint32_t>(&_VectorsRam); + DDSB(); + interrupts(); +#endif +#ifndef ARDUINO_spresense_ast + for(int i = 0; i < SWI_MAXIMUM_ALLOWED; i++) dyn_SWI_LIST[i] = NULL; + noInterrupts(); + _VectorsRam[SWI_IRQ_NUM + 16] = reinterpret_cast<void (*)()>(softISR); + DDSB(); + interrupts(); + NVIC_SET_PRIORITY(SWI_IRQ_NUM, 255); + NVIC_ENABLE_IRQ(SWI_IRQ_NUM); +#endif +#ifdef __DYN_SWI_DEBUG_LED__ + pinMode(__DYN_SWI_DEBUG_LED__, OUTPUT); + digitalWrite(__DYN_SWI_DEBUG_LED__, LOW); +#endif + dyn_SWI_initied = 1; + } +} + +/** + * @param klass class that extends dyn_SWI + * @return 0 on queue full, else returns queue position (ones based) + */ +int exec_SWI(const dyn_SWI* klass) { + int rc = 0; + + uint8_t irestore = interruptsStatus(); + // Allow use from inside a critical section... + // ... and prevent races if also used inside an ISR + noInterrupts(); + for(int i = 0; i < SWI_MAXIMUM_ALLOWED; i++) { + if(!dyn_SWI_LIST[i]) { + rc = 1 + i; // Success! + dyn_SWI_LIST[i] = (dyn_SWI*)klass; +#ifndef ARDUINO_spresense_ast + if(!NVIC_GET_PENDING(SWI_IRQ_NUM)) NVIC_SET_PENDING(SWI_IRQ_NUM); +#else + // Launch 1-shot timer as an emulated SWI + // Hopefully the value of Zero is legal. + // 1 microsecond latency would suck! + attachTimerInterrupt(softISR, 100); +#endif + DDSB(); + break; + } + } + // Restore interrupts, if they were on. + if(irestore) interrupts(); + return rc; +} +#elif defined(ARDUINO_ARCH_PIC32) + +/** + * Initialize the Dynamic (class) Software Interrupt + */ +static void Init_dyn_SWI() { + if(!dyn_SWI_initied) { + uint32_t sreg = disableInterrupts(); + + setIntVector(SWI_VECTOR, softISR); + setIntPriority(SWI_VECTOR, 1, 1); // Lowest priority, ever. + ifs->clr = swibit; + iec->clr = swibit; + iec->set = swibit; + restoreInterrupts(sreg); +#ifdef __DYN_SWI_DEBUG_LED__ + pinMode(__DYN_SWI_DEBUG_LED__, OUTPUT); + UHS_PIN_WRITE(__DYN_SWI_DEBUG_LED__, LOW); +#endif + } +} + +/** + * @param klass class that extends dyn_SWI + * @return 0 on queue full, else returns queue position (ones based) + */ +int exec_SWI(const dyn_SWI* klass) { + int rc = 0; + uint32_t sreg = disableInterrupts(); + for(int i = 0; i < SWI_MAXIMUM_ALLOWED; i++) { + if(!dyn_SWI_LIST[i]) { + rc = 1 + i; // Success! + dyn_SWI_LIST[i] = (dyn_SWI*)klass; + if(!(ifs->reg & swibit)) ifs->set = swibit; + ; + break; + } + } + restoreInterrupts(sreg); + return rc; +} + +#endif /* defined(__arm__) */ +#endif /* SWI_INLINE_H */ +#else +#error "Never include SWI_INLINE.h directly, include dyn_SWI.h instead" +#endif diff --git a/Marlin/src/sd/usb_flashdrive/lib-uhs3/dyn_SWI/dyn_SWI.h b/Marlin/src/sd/usb_flashdrive/lib-uhs3/dyn_SWI/dyn_SWI.h new file mode 100644 index 0000000..07f4ae0 --- /dev/null +++ b/Marlin/src/sd/usb_flashdrive/lib-uhs3/dyn_SWI/dyn_SWI.h @@ -0,0 +1,172 @@ +/* + * File: dyn_SWI.h + * Author: xxxajk@gmail.com + * + * Created on December 5, 2014, 9:12 AM + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef DYN_SWI_H +#define DYN_SWI_H + + +#if defined(__arm__) || defined(ARDUINO_ARCH_PIC32) +#ifdef ARDUINO_ARCH_PIC32 +#include <p32xxxx.h> +#endif +#ifdef __cplusplus + +#ifdef true +#undef true +#endif + +#ifdef false +#undef false +#endif + +#endif + +#ifdef ARDUINO_spresense_ast +#define SWI_IRQ_NUM 666 // because this board is totally evil. +#elif defined(ARDUINO_ARCH_PIC32) +#ifndef SWI_IRQ_NUM +#ifdef _DSPI0_IPL_ISR +#define SWI_IPL _DSPI0_IPL_ISR +#define SWI_VECTOR _DSPI0_ERR_IRQ +#define SWI_IRQ_NUM _DSPI0_ERR_IRQ +#elif defined(_PMP_ERROR_IRQ) +#define SWI_IRQ_NUM _PMP_ERROR_IRQ +#define SWI_VECTOR _PMP_VECTOR +#else +#error SWI_IRQ_NUM and SWI_VECTOR need a definition +#endif +#ifdef __cplusplus +extern "C" +{ + void +#ifdef __PIC32MZXX__ + __attribute__((nomips16,at_vector(SWI_VECTOR),interrupt(SWI_IPL))) +#else + __attribute__((interrupt(),nomips16)) +#endif + softISR(); +} +#endif +#endif +#elif !defined(NVIC_NUM_INTERRUPTS) +// Assume CMSIS +#define __USE_CMSIS_VECTORS__ +#ifdef NUMBER_OF_INT_VECTORS +#define NVIC_NUM_INTERRUPTS (NUMBER_OF_INT_VECTORS-16) +#else +#define NVIC_NUM_INTERRUPTS ((int)PERIPH_COUNT_IRQn) +#endif +#define VECTORTABLE_SIZE (NVIC_NUM_INTERRUPTS+16) +#define VECTORTABLE_ALIGNMENT (0x100UL) +#define NVIC_GET_ACTIVE(n) NVIC_GetActive((IRQn_Type)n) +#define NVIC_GET_PENDING(n) NVIC_GetPendingIRQ((IRQn_Type)n) +#define NVIC_SET_PENDING(n) NVIC_SetPendingIRQ((IRQn_Type)n) +#define NVIC_ENABLE_IRQ(n) NVIC_EnableIRQ((IRQn_Type)n) +#define NVIC_SET_PRIORITY(n ,p) NVIC_SetPriority((IRQn_Type)n, (uint32_t) p) +//extern "C" { +// extern uint32_t _VectorsRam[VECTORTABLE_SIZE] __attribute__((aligned(VECTORTABLE_ALIGNMENT))); +//} + +#ifndef SWI_IRQ_NUM +#if defined(__SAM3X8E__) && defined(_VARIANT_ARDUINO_DUE_X_) +// DUE +// Choices available: +// HSMCI_IRQn Multimedia Card Interface (HSMCI) +// EMAC_IRQn Ethernet MAC (EMAC) +// EMAC is not broken out on the official DUE, but is on clones. +// SPI0_IRQn Serial Peripheral Interface (SPI0) +// SPI0_IRQn seems to be the best choice, as long as nobody uses an ISR based master +#define SWI_IRQ_NUM SPI0_IRQn +#elif defined(ARDUINO_SAMD_ZERO) +// Just use sercom4's unused IRQ vector. +#define SWI_IRQ_NUM I2S_IRQn +//#define SWI_IRQ_NUM SERCOM4_IRQn +#endif +#endif + +#ifndef SWI_IRQ_NUM +#error SWI_IRQ_NUM not defined (CMSIS) +#endif + +#elif defined(CORE_TEENSY) + +#ifndef NVIC_GET_ACTIVE +#define NVIC_GET_ACTIVE(n) (*((volatile uint32_t *)0xE000E300 + ((n) >> 5)) & (1 << ((n) & 31))) +#endif +#ifndef NVIC_GET_PENDING +#define NVIC_GET_PENDING(n) (*((volatile uint32_t *)0xE000E200 + ((n) >> 5)) & (1 << ((n) & 31))) +#ifndef SWI_IRQ_NUM +#ifdef __MK20DX256__ +#define SWI_IRQ_NUM 17 +#elif defined(__MK20DX128__) +#define SWI_IRQ_NUM 5 +#elif defined(__MKL26Z64__) +#define SWI_IRQ_NUM 4 +#elif defined(__MK66FX1M0__) +#define SWI_IRQ_NUM 30 +#elif defined(__MK64FX512__) +#define SWI_IRQ_NUM 30 +#elif defined(__IMXRT1052__) || defined(__IMXRT1062__) +#define SWI_IRQ_NUM 71 +#else +#error Do not know how to relocate IRQ vectors for this pjrc product +#endif +#endif +#endif +#else // Not CMSIS or PJRC CORE_TEENSY or PIC32 or SPRESENSE +#error Do not know how to relocate IRQ vectors or perform SWI +#endif // SWI_IRQ_NUM + + +#ifndef SWI_IRQ_NUM +#error SWI_IRQ_NUM not defined +#else +/** + * Use this class to extend your class, in order to provide + * a C++ context callable SWI. + */ +class dyn_SWI { +public: + + /** + * Override this method with your code. + */ + virtual void dyn_SWISR() { + }; +}; + +extern int exec_SWI(const dyn_SWI* klass); + +#include "SWI_INLINE.h" + +// IMPORTANT! Define this so that you do NOT end up with a NULL stub! +#define SWI_NO_STUB +#endif /* SWI_IRQ_NUM */ +#endif /* __arm__ */ + +// if no SWI for CPU (e.g. AVR) make a void stub. +#ifndef SWI_NO_STUB +#define Init_dyn_SWI() (void(0)) +#ifndef DDSB +#define DDSB() (void(0)) +#endif +#endif +#endif /* DYN_SWI_H */ |