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HAL SPI pin init cleanup

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This commit is contained in:
Scott Lahteine
2019-06-14 20:16:22 -05:00
parent cfb44e4a26
commit 26de051e92
6 changed files with 71 additions and 73 deletions
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51
Marlin/src/HAL/HAL_AVR/HAL_spi_AVR.cpp
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@ -21,12 +21,12 @@
*/
/**
* Originally from Arduino Sd2Card Library
* Adapted from Arduino Sd2Card Library
* Copyright (C) 2009 by William Greiman
*/
/**
* Description: HAL for AVR - SPI functions
* HAL for AVR - SPI functions
*/
#ifdef __AVR__
@ -37,35 +37,24 @@
#include "../../inc/MarlinConfig.h"
// --------------------------------------------------------------------------
// Public Variables
// --------------------------------------------------------------------------
// --------------------------------------------------------------------------
// Public functions
// --------------------------------------------------------------------------
void spiBegin (void) {
SET_OUTPUT(SS_PIN);
WRITE(SS_PIN, HIGH);
void spiBegin(void) {
OUT_WRITE(SS_PIN, HIGH);
SET_OUTPUT(SCK_PIN);
SET_INPUT(MISO_PIN);
SET_OUTPUT(MOSI_PIN);
#if DISABLED(SOFTWARE_SPI)
// SS must be in output mode even it is not chip select
SET_OUTPUT(SS_PIN);
//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
//#if SET_SPI_SS_HIGH
//WRITE(SS_PIN, HIGH);
//#endif
// set a default rate
spiInit(1);
#endif // SOFTWARE_SPI
#endif
}
#if DISABLED(SOFTWARE_SPI, FORCE_SOFT_SPI)
//------------------------------------------------------------------------------
@ -190,22 +179,26 @@ void spiBegin (void) {
}
#else
#else // SOFTWARE_SPI || FORCE_SOFT_SPI
/** nop to tune soft SPI timing */
//------------------------------------------------------------------------------
// Software SPI
//------------------------------------------------------------------------------
// nop to tune soft SPI timing
#define nop asm volatile ("\tnop\n")
/** Set SPI rate */
// Set SPI rate
void spiInit(uint8_t spiRate) {
UNUSED(spiRate); // nothing to do
}
/** Begin SPI transaction, set clock, bit order, data mode */
// Begin SPI transaction, set clock, bit order, data mode
void spiBeginTransaction(uint32_t spiClock, uint8_t bitOrder, uint8_t dataMode) {
UNUSED(spiBeginTransaction); // nothing to do
}
/** Soft SPI receive byte */
// Soft SPI receive byte
uint8_t spiRec() {
uint8_t data = 0;
// no interrupts during byte receive - about 8µs
@ -230,13 +223,13 @@ void spiBegin (void) {
return data;
}
/** Soft SPI read data */
// Soft SPI read data
void spiRead(uint8_t* buf, uint16_t nbyte) {
for (uint16_t i = 0; i < nbyte; i++)
buf[i] = spiRec();
}
/** Soft SPI send byte */
// Soft SPI send byte
void spiSend(uint8_t data) {
// no interrupts during byte send - about 8µs
cli();
@ -257,13 +250,13 @@ void spiBegin (void) {
sei();
}
/** Soft SPI send block */
// 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, FORCE_SOFT_SPI
#endif // SOFTWARE_SPI || FORCE_SOFT_SPI
#endif // __AVR__