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Implement HAL and apply macros across code-base

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Implement AVR Platform
This commit is contained in:
Christopher Pepper
2017-06-18 00:36:10 +01:00
committed by Scott Lahteine
parent fb04dfcda8
commit 4b16fa3272
65 changed files with 2264 additions and 761 deletions
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151
Marlin/Sd2Card.cpp
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@@ -31,136 +31,6 @@
#if ENABLED(SDSUPPORT)
#include "Sd2Card.h"
#if ENABLED(USE_WATCHDOG)
#include "watchdog.h"
#endif
//------------------------------------------------------------------------------
#if DISABLED(SOFTWARE_SPI)
// functions for hardware SPI
//------------------------------------------------------------------------------
// make sure SPCR rate is in expected bits
#if (SPR0 != 0 || SPR1 != 1)
#error "unexpected SPCR bits"
#endif
/**
* Initialize hardware SPI
* Set SCK rate to F_CPU/pow(2, 1 + spiRate) for spiRate [0,6]
*/
static void spiInit(uint8_t spiRate) {
// See avr processor documentation
SPCR = _BV(SPE) | _BV(MSTR) | (spiRate >> 1);
SPSR = spiRate & 1 || spiRate == 6 ? 0 : _BV(SPI2X);
}
//------------------------------------------------------------------------------
/** SPI receive a byte */
static uint8_t spiRec() {
SPDR = 0xFF;
while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
return SPDR;
}
//------------------------------------------------------------------------------
/** SPI read data - only one call so force inline */
static inline __attribute__((always_inline))
void spiRead(uint8_t* buf, uint16_t nbyte) {
if (nbyte-- == 0) return;
SPDR = 0xFF;
for (uint16_t i = 0; i < nbyte; i++) {
while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
buf[i] = SPDR;
SPDR = 0xFF;
}
while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
buf[nbyte] = SPDR;
}
//------------------------------------------------------------------------------
/** SPI send a byte */
static void spiSend(uint8_t b) {
SPDR = b;
while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
}
//------------------------------------------------------------------------------
/** SPI send block - only one call so force inline */
static inline __attribute__((always_inline))
void spiSendBlock(uint8_t token, const uint8_t* buf) {
SPDR = token;
for (uint16_t i = 0; i < 512; i += 2) {
while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
SPDR = buf[i];
while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
SPDR = buf[i + 1];
}
while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
}
//------------------------------------------------------------------------------
#else // SOFTWARE_SPI
//------------------------------------------------------------------------------
/** nop to tune soft SPI timing */
#define nop asm volatile ("nop\n\t")
//------------------------------------------------------------------------------
/** Soft SPI receive byte */
static uint8_t spiRec() {
uint8_t data = 0;
// no interrupts during byte receive - about 8 us
cli();
// output pin high - like sending 0xFF
WRITE(SPI_MOSI_PIN, HIGH);
for (uint8_t i = 0; i < 8; i++) {
WRITE(SPI_SCK_PIN, HIGH);
// adjust so SCK is nice
nop;
nop;
data <<= 1;
if (READ(SPI_MISO_PIN)) data |= 1;
WRITE(SPI_SCK_PIN, LOW);
}
// enable interrupts
sei();
return data;
}
//------------------------------------------------------------------------------
/** Soft SPI read data */
static void spiRead(uint8_t* buf, uint16_t nbyte) {
for (uint16_t i = 0; i < nbyte; i++)
buf[i] = spiRec();
}
//------------------------------------------------------------------------------
/** Soft SPI send byte */
static void spiSend(uint8_t data) {
// no interrupts during byte send - about 8 us
cli();
for (uint8_t i = 0; i < 8; i++) {
WRITE(SPI_SCK_PIN, LOW);
WRITE(SPI_MOSI_PIN, data & 0x80);
data <<= 1;
WRITE(SPI_SCK_PIN, HIGH);
}
// hold SCK high for a few ns
nop;
nop;
nop;
nop;
WRITE(SPI_SCK_PIN, LOW);
// enable interrupts
sei();
}
//------------------------------------------------------------------------------
/** Soft SPI send block */
void spiSendBlock(uint8_t token, const uint8_t* buf) {
spiSend(token);
for (uint16_t i = 0; i < 512; i++)
spiSend(buf[i]);
}
#endif // SOFTWARE_SPI
//------------------------------------------------------------------------------
// send command and return error code. Return zero for OK
uint8_t Sd2Card::cardCommand(uint8_t cmd, uint32_t arg) {
@@ -310,23 +180,12 @@ bool Sd2Card::init(uint8_t sckRateID, uint8_t chipSelectPin) {
#endif
// set pin modes
pinMode(chipSelectPin_, OUTPUT);
chipSelectHigh();
SET_INPUT(SPI_MISO_PIN);
SET_OUTPUT(SPI_MOSI_PIN);
SET_OUTPUT(SPI_SCK_PIN);
//todo: should use chipSelectPin ?
spiBegin();
#if DISABLED(SOFTWARE_SPI)
// SS must be in output mode even it is not chip select
SET_OUTPUT(SS_PIN);
// set SS high - may be chip select for another SPI device
#if SET_SPI_SS_HIGH
WRITE(SS_PIN, HIGH);
#endif // SET_SPI_SS_HIGH
// set SCK rate for initialization commands
spiRate_ = SPI_SD_INIT_RATE;
spiInit(spiRate_);
#endif // SOFTWARE_SPI
// set SCK rate for initialization commands
spiRate_ = SPI_SD_INIT_RATE;
spiInit(spiRate_);
// must supply min of 74 clock cycles with CS high.
for (uint8_t i = 0; i < 10; i++) spiSend(0xFF);