From d991959bff8d239abd019741e956f59d270e1ba8 Mon Sep 17 00:00:00 2001 From: BlackMark Date: Thu, 15 Aug 2019 17:37:13 +0200 Subject: [PATCH] Fixed workaround with correct macro --- io.hpp | 33 ++++++++++++++------------------- 1 file changed, 14 insertions(+), 19 deletions(-) diff --git a/io.hpp b/io.hpp index 9112c1f..ccdec66 100644 --- a/io.hpp +++ b/io.hpp @@ -131,16 +131,13 @@ The following works in avr-gcc 5.4.0, but is not legal C++, because ptr's are no constexpr auto *foo = ptr; Workaround is to store the the address of the ptr in a uintptr_t and reinterpret_cast it at call site -For this to work we need to temporarily disable the _SFR_IO8 macro so that the register macro just gives the address +For this the sfr_defs.h provides a macro which returns the address of a register */ -#undef _SFR_IO8 -#define _SFR_IO8 - #ifdef PORT_A_AVAILABLE -static constexpr uintptr_t PORT_A_DIR_REG_ADDR = DDRA + __SFR_OFFSET; -static constexpr uintptr_t PORT_A_OUTPUT_REG_ADDR = PORTA + __SFR_OFFSET; -static constexpr uintptr_t PORT_A_INPUT_REG_ADDR = PINA + __SFR_OFFSET; +static constexpr uintptr_t PORT_A_DIR_REG_ADDR = _SFR_ADDR(DDRA); +static constexpr uintptr_t PORT_A_OUTPUT_REG_ADDR = _SFR_ADDR(PORTA); +static constexpr uintptr_t PORT_A_INPUT_REG_ADDR = _SFR_ADDR(PINA); #else static constexpr uintptr_t PORT_A_DIR_REG_ADDR = 0; static constexpr uintptr_t PORT_A_OUTPUT_REG_ADDR = 0; @@ -148,9 +145,10 @@ static constexpr uintptr_t PORT_A_INPUT_REG_ADDR = 0; #endif #ifdef PORT_B_AVAILABLE -static constexpr uintptr_t PORT_B_DIR_REG_ADDR = DDRB + __SFR_OFFSET; -static constexpr uintptr_t PORT_B_OUTPUT_REG_ADDR = PORTB + __SFR_OFFSET; -static constexpr uintptr_t PORT_B_INPUT_REG_ADDR = PINB + __SFR_OFFSET; + +static constexpr uintptr_t PORT_B_DIR_REG_ADDR = _SFR_ADDR(DDRB); +static constexpr uintptr_t PORT_B_OUTPUT_REG_ADDR = _SFR_ADDR(PORTB); +static constexpr uintptr_t PORT_B_INPUT_REG_ADDR = _SFR_ADDR(PINB); #else static constexpr uintptr_t PORT_B_DIR_REG_ADDR = 0; static constexpr uintptr_t PORT_B_OUTPUT_REG_ADDR = 0; @@ -158,9 +156,9 @@ static constexpr uintptr_t PORT_B_INPUT_REG_ADDR = 0; #endif #ifdef PORT_C_AVAILABLE -static constexpr uintptr_t PORT_C_DIR_REG_ADDR = DDRC + __SFR_OFFSET; -static constexpr uintptr_t PORT_C_OUTPUT_REG_ADDR = PORTC + __SFR_OFFSET; -static constexpr uintptr_t PORT_C_INPUT_REG_ADDR = PINC + __SFR_OFFSET; +static constexpr uintptr_t PORT_C_DIR_REG_ADDR = _SFR_ADDR(DDRC); +static constexpr uintptr_t PORT_C_OUTPUT_REG_ADDR = _SFR_ADDR(PORTC); +static constexpr uintptr_t PORT_C_INPUT_REG_ADDR = _SFR_ADDR(PINC); #else static constexpr uintptr_t PORT_C_DIR_REG_ADDR = 0; static constexpr uintptr_t PORT_C_OUTPUT_REG_ADDR = 0; @@ -168,18 +166,15 @@ static constexpr uintptr_t PORT_C_INPUT_REG_ADDR = 0; #endif #ifdef PORT_D_AVAILABLE -static constexpr uintptr_t PORT_D_DIR_REG_ADDR = DDRD + __SFR_OFFSET; -static constexpr uintptr_t PORT_D_OUTPUT_REG_ADDR = PORTD + __SFR_OFFSET; -static constexpr uintptr_t PORT_D_INPUT_REG_ADDR = PIND + __SFR_OFFSET; +static constexpr uintptr_t PORT_D_DIR_REG_ADDR = _SFR_ADDR(DDRD); +static constexpr uintptr_t PORT_D_OUTPUT_REG_ADDR = _SFR_ADDR(PORTD); +static constexpr uintptr_t PORT_D_INPUT_REG_ADDR = _SFR_ADDR(PIND); #else static constexpr uintptr_t PORT_D_DIR_REG_ADDR = 0; static constexpr uintptr_t PORT_D_OUTPUT_REG_ADDR = 0; static constexpr uintptr_t PORT_D_INPUT_REG_ADDR = 0; #endif -#undef _SFR_IO8 -#define _SFR_IO8(io_addr) _MMIO_BYTE((io_addr) + __SFR_OFFSET) - static constexpr auto getBus(const P pin) { // Upper 4 bits of pin encode which port this pin is on