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esp32_Adafruit_BusIO
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selectively remove spi

This commit is contained in:
caternuson 2021-09-28 14:31:23 -07:00
parent a819f24d00
commit c6965bd471
4 changed files with 19 additions and 8 deletions
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13
Adafruit_BusIO_Register.cpp
View File

@ -1,8 +1,5 @@
#include <Adafruit_BusIO_Register.h>
#if !defined(SPI_INTERFACES_COUNT) || \
(defined(SPI_INTERFACES_COUNT) && (SPI_INTERFACES_COUNT > 0))
/*!
* @brief Create a register we access over an I2C Device (which defines the
* bus and address)
@ -21,7 +18,9 @@ Adafruit_BusIO_Register::Adafruit_BusIO_Register(Adafruit_I2CDevice *i2cdevice,
uint8_t byteorder,
uint8_t address_width) {
_i2cdevice = i2cdevice;
#ifdef HAS_SPI
_spidevice = NULL;
#endif
_addrwidth = address_width;
_address = reg_addr;
_byteorder = byteorder;
@ -42,6 +41,7 @@ Adafruit_BusIO_Register::Adafruit_BusIO_Register(Adafruit_I2CDevice *i2cdevice,
* @param address_width The width of the register address itself, defaults
* to 1 byte
*/
#ifdef HAS_SPI
Adafruit_BusIO_Register::Adafruit_BusIO_Register(Adafruit_SPIDevice *spidevice,
uint16_t reg_addr,
Adafruit_BusIO_SPIRegType type,
@ -87,6 +87,7 @@ Adafruit_BusIO_Register::Adafruit_BusIO_Register(
_byteorder = byteorder;
_width = width;
}
#endif
/*!
* @brief Write a buffer of data to the register location
@ -103,6 +104,7 @@ bool Adafruit_BusIO_Register::write(uint8_t *buffer, uint8_t len) {
if (_i2cdevice) {
return _i2cdevice->write(buffer, len, true, addrbuffer, _addrwidth);
}
#ifdef HAS_SPI
if (_spidevice) {
if (_spiregtype == ADDRESSED_OPCODE_BIT0_LOW_TO_WRITE) {
// very special case!
@ -129,6 +131,7 @@ bool Adafruit_BusIO_Register::write(uint8_t *buffer, uint8_t len) {
}
return _spidevice->write(buffer, len, addrbuffer, _addrwidth);
}
#endif
return false;
}
@ -205,6 +208,7 @@ bool Adafruit_BusIO_Register::read(uint8_t *buffer, uint8_t len) {
if (_i2cdevice) {
return _i2cdevice->write_then_read(addrbuffer, _addrwidth, buffer, len);
}
#ifdef HAS_SPI
if (_spidevice) {
if (_spiregtype == ADDRESSED_OPCODE_BIT0_LOW_TO_WRITE) {
// very special case!
@ -230,6 +234,7 @@ bool Adafruit_BusIO_Register::read(uint8_t *buffer, uint8_t len) {
}
return _spidevice->write_then_read(addrbuffer, _addrwidth, buffer, len);
}
#endif
return false;
}
@ -361,5 +366,3 @@ void Adafruit_BusIO_Register::setAddress(uint16_t address) {
void Adafruit_BusIO_Register::setAddressWidth(uint16_t address_width) {
_addrwidth = address_width;
}
#endif // SPI exists

7
Adafruit_BusIO_Register.h
View File

@ -4,6 +4,8 @@
#if !defined(SPI_INTERFACES_COUNT) || \
(defined(SPI_INTERFACES_COUNT) && (SPI_INTERFACES_COUNT > 0))
#define HAS_SPI
#endif // SPI exists
#ifndef Adafruit_BusIO_Register_h
#define Adafruit_BusIO_Register_h
@ -45,6 +47,7 @@ public:
uint8_t width = 1, uint8_t byteorder = LSBFIRST,
uint8_t address_width = 1);
#ifdef HAS_SPI
Adafruit_BusIO_Register(Adafruit_SPIDevice *spidevice, uint16_t reg_addr,
Adafruit_BusIO_SPIRegType type, uint8_t width = 1,
uint8_t byteorder = LSBFIRST,
@ -55,6 +58,7 @@ public:
Adafruit_BusIO_SPIRegType type, uint16_t reg_addr,
uint8_t width = 1, uint8_t byteorder = LSBFIRST,
uint8_t address_width = 1);
#endif
bool read(uint8_t *buffer, uint8_t len);
bool read(uint8_t *value);
@ -75,7 +79,9 @@ public:
private:
Adafruit_I2CDevice *_i2cdevice;
#ifdef HAS_SPI
Adafruit_SPIDevice *_spidevice;
#endif
Adafruit_BusIO_SPIRegType _spiregtype;
uint16_t _address;
uint8_t _width, _addrwidth, _byteorder;
@ -102,4 +108,3 @@ private:
#endif // BusIO_Register_h
#endif // SPI exists

5
Adafruit_SPIDevice.cpp
View File

@ -1,8 +1,9 @@
#if (defined(SPI_INTERFACES_COUNT) && (SPI_INTERFACES_COUNT > 0))
#include <Adafruit_SPIDevice.h>
#include <Arduino.h>
#if !defined(SPI_INTERFACES_COUNT) || \
(defined(SPI_INTERFACES_COUNT) && (SPI_INTERFACES_COUNT > 0))
//#define DEBUG_SERIAL Serial
/*!

2
Adafruit_SPIDevice.h
View File

@ -1,3 +1,5 @@
#include <Arduino.h>
#if !defined(SPI_INTERFACES_COUNT) || \
(defined(SPI_INTERFACES_COUNT) && (SPI_INTERFACES_COUNT > 0))