diff options
Diffstat (limited to 'src/platforms/arm/stm32/fastpin_arm_stm32.h')
-rw-r--r-- | src/platforms/arm/stm32/fastpin_arm_stm32.h | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/src/platforms/arm/stm32/fastpin_arm_stm32.h b/src/platforms/arm/stm32/fastpin_arm_stm32.h new file mode 100644 index 00000000..548fdc9d --- /dev/null +++ b/src/platforms/arm/stm32/fastpin_arm_stm32.h @@ -0,0 +1,220 @@ +#ifndef __FASTPIN_ARM_STM32_H +#define __FASTPIN_ARM_STM32_H + +FASTLED_NAMESPACE_BEGIN + +#if defined(FASTLED_FORCE_SOFTWARE_PINS) +#warning "Software pin support forced, pin access will be sloightly slower." +#define NO_HARDWARE_PIN_SUPPORT +#undef HAS_HARDWARE_PIN_SUPPORT + +#else + +/// Template definition for STM32 style ARM pins, providing direct access to the various GPIO registers. Note that this +/// uses the full port GPIO registers. In theory, in some way, bit-band register access -should- be faster, however I have found +/// that something about the way gcc does register allocation results in the bit-band code being slower. It will need more fine tuning. +/// The registers are data output, set output, clear output, toggle output, input, and direction + +template<uint8_t PIN, uint8_t _BIT, uint32_t _MASK, typename _GPIO> class _ARMPIN { + +public: + typedef volatile uint32_t * port_ptr_t; + typedef uint32_t port_t; + + #if 0 + inline static void setOutput() { + if(_BIT<8) { + _CRL::r() = (_CRL::r() & (0xF << (_BIT*4)) | (0x1 << (_BIT*4)); + } else { + _CRH::r() = (_CRH::r() & (0xF << ((_BIT-8)*4))) | (0x1 << ((_BIT-8)*4)); + } + } + inline static void setInput() { /* TODO */ } // TODO: preform MUX config { _PDDR::r() &= ~_MASK; } + #endif + + inline static void setOutput() { pinMode(PIN, OUTPUT); } // TODO: perform MUX config { _PDDR::r() |= _MASK; } + inline static void setInput() { pinMode(PIN, INPUT); } // TODO: preform MUX config { _PDDR::r() &= ~_MASK; } + +#if defined(STM32F2XX) + inline static void hi() __attribute__ ((always_inline)) { _GPIO::r()->BSRRL = _MASK; } + inline static void lo() __attribute__ ((always_inline)) { _GPIO::r()->BSRRH = _MASK; } +#else + inline static void hi() __attribute__ ((always_inline)) { _GPIO::r()->BSRR = _MASK; } + inline static void lo() __attribute__ ((always_inline)) { _GPIO::r()->BRR = _MASK; } + // inline static void lo() __attribute__ ((always_inline)) { _GPIO::r()->BSRR = (_MASK<<16); } +#endif + inline static void set(register port_t val) __attribute__ ((always_inline)) { _GPIO::r()->ODR = val; } + + inline static void strobe() __attribute__ ((always_inline)) { toggle(); toggle(); } + + inline static void toggle() __attribute__ ((always_inline)) { if(_GPIO::r()->ODR & _MASK) { lo(); } else { hi(); } } + + inline static void hi(register port_ptr_t port) __attribute__ ((always_inline)) { hi(); } + inline static void lo(register port_ptr_t port) __attribute__ ((always_inline)) { lo(); } + inline static void fastset(register port_ptr_t port, register port_t val) __attribute__ ((always_inline)) { *port = val; } + + inline static port_t hival() __attribute__ ((always_inline)) { return _GPIO::r()->ODR | _MASK; } + inline static port_t loval() __attribute__ ((always_inline)) { return _GPIO::r()->ODR & ~_MASK; } + inline static port_ptr_t port() __attribute__ ((always_inline)) { return &_GPIO::r()->ODR; } + +#if defined(STM32F2XX) + inline static port_ptr_t sport() __attribute__ ((always_inline)) { return &_GPIO::r()->BSRRL; } + inline static port_ptr_t cport() __attribute__ ((always_inline)) { return &_GPIO::r()->BSRRH; } +#else + inline static port_ptr_t sport() __attribute__ ((always_inline)) { return &_GPIO::r()->BSRR; } + inline static port_ptr_t cport() __attribute__ ((always_inline)) { return &_GPIO::r()->BRR; } +#endif + + inline static port_t mask() __attribute__ ((always_inline)) { return _MASK; } +}; + + +#define _R(T) struct __gen_struct_ ## T +#define _FL_DEFPIN(PIN, BIT, L) template<> class FastPin<PIN> : public _ARMPIN<PIN, BIT, 1 << BIT, _R(GPIO ## L)> {}; + +#if defined(STM32F10X_MD) +#define _RD32(T) struct __gen_struct_ ## T { static __attribute__((always_inline)) inline volatile GPIO_TypeDef * r() { return T; } }; +#define _FL_IO(L,C) _RD32(GPIO ## L); _FL_DEFINE_PORT3(L, C, _R(GPIO ## L)); + +#elif defined(__STM32F1__) +#define _RD32(T) struct __gen_struct_ ## T { static __attribute__((always_inline)) inline gpio_reg_map* r() { return T->regs; } }; +#define _FL_IO(L,C) _RD32(GPIO ## L); _FL_DEFINE_PORT3(L, C, _R(GPIO ## L)); + +#elif defined(STM32F2XX) +#define _RD32(T) struct __gen_struct_ ## T { static __attribute__((always_inline)) inline volatile GPIO_TypeDef * r() { return T; } }; +#define _FL_IO(L,C) _RD32(GPIO ## L); +#else +#error "Platform not supported" +#endif + +#ifdef GPIOA +_FL_IO(A,0); +#endif +#ifdef GPIOB +_FL_IO(B,1); +#endif +#ifdef GPIOC +_FL_IO(C,2); +#endif +#ifdef GPIOD +_FL_IO(D,3); +#endif +#ifdef GPIOE +_FL_IO(E,4); +#endif +#ifdef GPIOF +_FL_IO(F,5); +#endif +#ifdef GPIOG +_FL_IO(G,6); +#endif + +// Actual pin definitions +#if defined(STM32F2XX) // Photon Particle + +// https://github.com/focalintent/FastLED-Sparkcore/blob/master/firmware/fastpin_arm_stm32.h +#define MAX_PIN 20 +_FL_DEFPIN(0, 7, B); +_FL_DEFPIN(1, 6, B); +_FL_DEFPIN(2, 5, B); +_FL_DEFPIN(3, 4, B); +_FL_DEFPIN(4, 3, B); +_FL_DEFPIN(5, 15, A); +_FL_DEFPIN(6, 14, A); +_FL_DEFPIN(7, 13, A); +_FL_DEFPIN(10, 5, C); +_FL_DEFPIN(11, 3, C); +_FL_DEFPIN(12, 2, C); +_FL_DEFPIN(13, 5, A); +_FL_DEFPIN(14, 6, A); +_FL_DEFPIN(15, 7, A); +_FL_DEFPIN(16, 4, A); +_FL_DEFPIN(17, 0, A); +_FL_DEFPIN(18, 10, A); +_FL_DEFPIN(19, 9, A); +_FL_DEFPIN(20, 7, C); + +#define SPI_DATA 15 +#define SPI_CLOCK 13 + +#define HAS_HARDWARE_PIN_SUPPORT + +#elif defined(SPARK) // Sparkfun STM32F103 based board + +#define MAX_PIN 19 +_FL_DEFPIN(0, 7, B); +_FL_DEFPIN(1, 6, B); +_FL_DEFPIN(2, 5, B); +_FL_DEFPIN(3, 4, B); +_FL_DEFPIN(4, 3, B); +_FL_DEFPIN(5, 15, A); +_FL_DEFPIN(6, 14, A); +_FL_DEFPIN(7, 13, A); +_FL_DEFPIN(8, 8, A); +_FL_DEFPIN(9, 9, A); +_FL_DEFPIN(10, 0, A); +_FL_DEFPIN(11, 1, A); +_FL_DEFPIN(12, 4, A); +_FL_DEFPIN(13, 5, A); +_FL_DEFPIN(14, 6, A); +_FL_DEFPIN(15, 7, A); +_FL_DEFPIN(16, 0, B); +_FL_DEFPIN(17, 1, B); +_FL_DEFPIN(18, 3, A); +_FL_DEFPIN(19, 2, A); + +#define SPI_DATA 15 +#define SPI_CLOCK 13 + +#define HAS_HARDWARE_PIN_SUPPORT + +#elif defined(__STM32F1__) // Generic STM32F103 aka "Blue Pill" + +#define MAX_PIN 46 + +_FL_DEFPIN(10, 0, A); // PA0 - PA7 +_FL_DEFPIN(11, 1, A); +_FL_DEFPIN(12, 2, A); +_FL_DEFPIN(13, 3, A); +_FL_DEFPIN(14, 4, A); +_FL_DEFPIN(15, 5, A); +_FL_DEFPIN(16, 6, A); +_FL_DEFPIN(17, 7, A); +_FL_DEFPIN(29, 8, A); // PA8 - PA15 +_FL_DEFPIN(30, 9, A); +_FL_DEFPIN(31, 10, A); +_FL_DEFPIN(32, 11, A); +_FL_DEFPIN(33, 12, A); +_FL_DEFPIN(34, 13, A); +_FL_DEFPIN(37, 14, A); +_FL_DEFPIN(38, 15, A); + +_FL_DEFPIN(18, 0, B); // PB0 - PB11 +_FL_DEFPIN(19, 1, B); +_FL_DEFPIN(20, 2, B); +_FL_DEFPIN(39, 3, B); +_FL_DEFPIN(40, 4, B); +_FL_DEFPIN(41, 5, B); +_FL_DEFPIN(42, 6, B); +_FL_DEFPIN(43, 7, B); +_FL_DEFPIN(45, 8, B); +_FL_DEFPIN(46, 9, B); +_FL_DEFPIN(21, 10, B); +_FL_DEFPIN(22, 11, B); + +_FL_DEFPIN(2, 13, C); // PC13 - PC15 +_FL_DEFPIN(3, 14, C); +_FL_DEFPIN(4, 15, C); + +#define SPI_DATA BOARD_SPI1_MOSI_PIN +#define SPI_CLOCK BOARD_SPI1_SCK_PIN + +#define HAS_HARDWARE_PIN_SUPPORT + +#endif // __STM32F1__ + +#endif // FASTLED_FORCE_SOFTWARE_PINS + +FASTLED_NAMESPACE_END + +#endif // __INC_FASTPIN_ARM_STM32 |