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Copy pathSerialFlash_directwrite.h
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SerialFlash_directwrite.h
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#ifndef SerialFlash_directwrite_h
#define SerialFlash_directwrite_h
#include <inttypes.h>
// Adapted from OneWire.h
#if ARDUINO >= 100
#include "Arduino.h" // for delayMicroseconds, digitalPinToBitMask, etc
#else
#include "WProgram.h" // for delayMicroseconds
#include "pins_arduino.h" // for digitalPinToBitMask, etc
#endif
// Platform specific I/O definitions
#if defined(__AVR__)
#define PIN_TO_BASEREG(pin) (portInputRegister(digitalPinToPort(pin)))
#define PIN_TO_BITMASK(pin) (digitalPinToBitMask(pin))
#define IO_REG_TYPE uint8_t
#define IO_REG_ASM asm("r30")
#if defined(__AVR_ATmega4809__)
#define DIRECT_READ(base, mask) (((*(base)) & (mask)) ? 1 : 0)
#define DIRECT_MODE_INPUT(base, mask) ((*((base)-8)) &= ~(mask))
#define DIRECT_MODE_OUTPUT(base, mask) ((*((base)-8)) |= (mask))
#define DIRECT_WRITE_LOW(base, mask) ((*((base)-4)) &= ~(mask))
#define DIRECT_WRITE_HIGH(base, mask) ((*((base)-4)) |= (mask))
#else
#define DIRECT_READ(base, mask) (((*(base)) & (mask)) ? 1 : 0)
#define DIRECT_MODE_INPUT(base, mask) ((*((base)+1)) &= ~(mask))
#define DIRECT_MODE_OUTPUT(base, mask) ((*((base)+1)) |= (mask))
#define DIRECT_WRITE_LOW(base, mask) ((*((base)+2)) &= ~(mask))
#define DIRECT_WRITE_HIGH(base, mask) ((*((base)+2)) |= (mask))
#endif
#elif defined(__MK20DX128__) || defined(__MK20DX256__) || defined(__MK66FX1M0__) || defined(__MK64FX512__)
#define PIN_TO_BASEREG(pin) (portOutputRegister(pin))
#define PIN_TO_BITMASK(pin) (1)
#define IO_REG_TYPE uint8_t
#define IO_REG_ASM
#define DIRECT_READ(base, mask) (*((base)+512))
#define DIRECT_MODE_INPUT(base, mask) (*((base)+640) = 0)
#define DIRECT_MODE_OUTPUT(base, mask) (*((base)+640) = 1)
#define DIRECT_WRITE_LOW(base, mask) (*((base)+256) = 1)
#define DIRECT_WRITE_HIGH(base, mask) (*((base)+128) = 1)
#elif defined(__MKL26Z64__)
#define PIN_TO_BASEREG(pin) (portOutputRegister(pin))
#define PIN_TO_BITMASK(pin) (digitalPinToBitMask(pin))
#define IO_REG_TYPE uint8_t
#define IO_REG_ASM
#define DIRECT_READ(base, mask) ((*((base)+16) & (mask)) ? 1 : 0)
#define DIRECT_MODE_INPUT(base, mask) (*((base)+20) &= ~(mask))
#define DIRECT_MODE_OUTPUT(base, mask) (*((base)+20) |= (mask))
#define DIRECT_WRITE_LOW(base, mask) (*((base)+8) = (mask))
#define DIRECT_WRITE_HIGH(base, mask) (*((base)+4) = (mask))
#elif defined(__SAM3X8E__)
#define PIN_TO_BASEREG(pin) (&(digitalPinToPort(pin)->PIO_PER))
#define PIN_TO_BITMASK(pin) (digitalPinToBitMask(pin))
#define IO_REG_TYPE uint32_t
#define IO_REG_ASM
#define DIRECT_READ(base, mask) (((*((base)+15)) & (mask)) ? 1 : 0)
#define DIRECT_MODE_INPUT(base, mask) ((*((base)+5)) = (mask))
#define DIRECT_MODE_OUTPUT(base, mask) ((*((base)+4)) = (mask))
#define DIRECT_WRITE_LOW(base, mask) ((*((base)+13)) = (mask))
#define DIRECT_WRITE_HIGH(base, mask) ((*((base)+12)) = (mask))
#ifndef PROGMEM
#define PROGMEM
#endif
#ifndef pgm_read_byte
#define pgm_read_byte(addr) (*(const uint8_t *)(addr))
#endif
#elif defined(__PIC32MX__)
#define PIN_TO_BASEREG(pin) (portModeRegister(digitalPinToPort(pin)))
#define PIN_TO_BITMASK(pin) (digitalPinToBitMask(pin))
#define IO_REG_TYPE uint32_t
#define IO_REG_ASM
#define DIRECT_READ(base, mask) (((*(base+4)) & (mask)) ? 1 : 0) //PORTX + 0x10
#define DIRECT_MODE_INPUT(base, mask) ((*(base+2)) = (mask)) //TRISXSET + 0x08
#define DIRECT_MODE_OUTPUT(base, mask) ((*(base+1)) = (mask)) //TRISXCLR + 0x04
#define DIRECT_WRITE_LOW(base, mask) ((*(base+8+1)) = (mask)) //LATXCLR + 0x24
#define DIRECT_WRITE_HIGH(base, mask) ((*(base+8+2)) = (mask)) //LATXSET + 0x28
#elif defined(ARDUINO_ARCH_ESP8266)
#define PIN_TO_BASEREG(pin) ((volatile uint32_t*) GPO)
#define PIN_TO_BITMASK(pin) (1 << pin)
#define IO_REG_TYPE uint32_t
#define IO_REG_ASM
#define DIRECT_READ(base, mask) ((GPI & (mask)) ? 1 : 0) //GPIO_IN_ADDRESS
#define DIRECT_MODE_INPUT(base, mask) (GPE &= ~(mask)) //GPIO_ENABLE_W1TC_ADDRESS
#define DIRECT_MODE_OUTPUT(base, mask) (GPE |= (mask)) //GPIO_ENABLE_W1TS_ADDRESS
#define DIRECT_WRITE_LOW(base, mask) (GPOC = (mask)) //GPIO_OUT_W1TC_ADDRESS
#define DIRECT_WRITE_HIGH(base, mask) (GPOS = (mask)) //GPIO_OUT_W1TS_ADDRESS
#elif defined(__SAMD21G18A__)
#define PIN_TO_BASEREG(pin) portModeRegister(digitalPinToPort(pin))
#define PIN_TO_BITMASK(pin) (digitalPinToBitMask(pin))
#define IO_REG_TYPE uint32_t
#define IO_REG_ASM
#define DIRECT_READ(base, mask) (((*((base)+8)) & (mask)) ? 1 : 0)
#define DIRECT_MODE_INPUT(base, mask) ((*((base)+1)) = (mask))
#define DIRECT_MODE_OUTPUT(base, mask) ((*((base)+2)) = (mask))
#define DIRECT_WRITE_LOW(base, mask) ((*((base)+5)) = (mask))
#define DIRECT_WRITE_HIGH(base, mask) ((*((base)+6)) = (mask))
#elif defined(RBL_NRF51822)
#define PIN_TO_BASEREG(pin) (0)
#define PIN_TO_BITMASK(pin) (pin)
#define IO_REG_TYPE uint32_t
#define IO_REG_ASM
#define DIRECT_READ(base, pin) nrf_gpio_pin_read(pin)
#define DIRECT_WRITE_LOW(base, pin) nrf_gpio_pin_clear(pin)
#define DIRECT_WRITE_HIGH(base, pin) nrf_gpio_pin_set(pin)
#define DIRECT_MODE_INPUT(base, pin) nrf_gpio_cfg_input(pin, NRF_GPIO_PIN_NOPULL)
#define DIRECT_MODE_OUTPUT(base, pin) nrf_gpio_cfg_output(pin)
#elif defined(__arc__) /* Arduino101/Genuino101 specifics */
#include "scss_registers.h"
#include "portable.h"
#include "avr/pgmspace.h"
#define GPIO_ID(pin) (g_APinDescription[pin].ulGPIOId)
#define GPIO_TYPE(pin) (g_APinDescription[pin].ulGPIOType)
#define GPIO_BASE(pin) (g_APinDescription[pin].ulGPIOBase)
#define DIR_OFFSET_SS 0x01
#define DIR_OFFSET_SOC 0x04
#define EXT_PORT_OFFSET_SS 0x0A
#define EXT_PORT_OFFSET_SOC 0x50
/* GPIO registers base address */
#define PIN_TO_BASEREG(pin) ((volatile uint32_t *)g_APinDescription[pin].ulGPIOBase)
#define PIN_TO_BITMASK(pin) pin
#define IO_REG_TYPE uint32_t
#define IO_REG_ASM
static inline __attribute__((always_inline))
IO_REG_TYPE directRead(volatile IO_REG_TYPE *base, IO_REG_TYPE pin)
{
IO_REG_TYPE ret;
if (SS_GPIO == GPIO_TYPE(pin)) {
ret = READ_ARC_REG(((IO_REG_TYPE)base + EXT_PORT_OFFSET_SS));
} else {
ret = MMIO_REG_VAL_FROM_BASE((IO_REG_TYPE)base, EXT_PORT_OFFSET_SOC);
}
return ((ret >> GPIO_ID(pin)) & 0x01);
}
static inline __attribute__((always_inline))
void directModeInput(volatile IO_REG_TYPE *base, IO_REG_TYPE pin)
{
if (SS_GPIO == GPIO_TYPE(pin)) {
WRITE_ARC_REG(READ_ARC_REG((((IO_REG_TYPE)base) + DIR_OFFSET_SS)) & ~(0x01 << GPIO_ID(pin)),
((IO_REG_TYPE)(base) + DIR_OFFSET_SS));
} else {
MMIO_REG_VAL_FROM_BASE((IO_REG_TYPE)base, DIR_OFFSET_SOC) &= ~(0x01 << GPIO_ID(pin));
}
}
static inline __attribute__((always_inline))
void directModeOutput(volatile IO_REG_TYPE *base, IO_REG_TYPE pin)
{
if (SS_GPIO == GPIO_TYPE(pin)) {
WRITE_ARC_REG(READ_ARC_REG(((IO_REG_TYPE)(base) + DIR_OFFSET_SS)) | (0x01 << GPIO_ID(pin)),
((IO_REG_TYPE)(base) + DIR_OFFSET_SS));
} else {
MMIO_REG_VAL_FROM_BASE((IO_REG_TYPE)base, DIR_OFFSET_SOC) |= (0x01 << GPIO_ID(pin));
}
}
static inline __attribute__((always_inline))
void directWriteLow(volatile IO_REG_TYPE *base, IO_REG_TYPE pin)
{
if (SS_GPIO == GPIO_TYPE(pin)) {
WRITE_ARC_REG(READ_ARC_REG(base) & ~(0x01 << GPIO_ID(pin)), base);
} else {
MMIO_REG_VAL(base) &= ~(0x01 << GPIO_ID(pin));
}
}
static inline __attribute__((always_inline))
void directWriteHigh(volatile IO_REG_TYPE *base, IO_REG_TYPE pin)
{
if (SS_GPIO == GPIO_TYPE(pin)) {
WRITE_ARC_REG(READ_ARC_REG(base) | (0x01 << GPIO_ID(pin)), base);
} else {
MMIO_REG_VAL(base) |= (0x01 << GPIO_ID(pin));
}
}
#define DIRECT_READ(base, pin) directRead(base, pin)
#define DIRECT_MODE_INPUT(base, pin) directModeInput(base, pin)
#define DIRECT_MODE_OUTPUT(base, pin) directModeOutput(base, pin)
#define DIRECT_WRITE_LOW(base, pin) directWriteLow(base, pin)
#define DIRECT_WRITE_HIGH(base, pin) directWriteHigh(base, pin)
#else
#define PIN_TO_BASEREG(pin) (0)
#define PIN_TO_BITMASK(pin) (pin)
#define IO_REG_TYPE unsigned int
#define IO_REG_ASM
#define DIRECT_READ(base, pin) digitalRead(pin)
#define DIRECT_WRITE_LOW(base, pin) digitalWrite(pin, LOW)
#define DIRECT_WRITE_HIGH(base, pin) digitalWrite(pin, HIGH)
#define DIRECT_MODE_INPUT(base, pin) pinMode(pin,INPUT)
#define DIRECT_MODE_OUTPUT(base, pin) pinMode(pin,OUTPUT)
#endif
#endif