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This commit is contained in:
ladyada 2025-01-07 22:08:13 -05:00
parent c43db9d7c2
commit 66448b37ec
4 changed files with 100 additions and 91 deletions
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24
Adafruit_BusIO_Register.cpp
View File

@ -89,18 +89,16 @@ Adafruit_BusIO_Register::Adafruit_BusIO_Register(
} }
/*! /*!
* @brief Create a register we access over a GenericDevice * @brief Create a register we access over a GenericDevice
* @param genericdevice Generic device to use * @param genericdevice Generic device to use
* @param reg_addr Register address we will read/write * @param reg_addr Register address we will read/write
* @param width Width of the register in bytes (1-4) * @param width Width of the register in bytes (1-4)
* @param byteorder Byte order of register data (LSBFIRST or MSBFIRST) * @param byteorder Byte order of register data (LSBFIRST or MSBFIRST)
* @param address_width Width of the register address in bytes (1 or 2) * @param address_width Width of the register address in bytes (1 or 2)
*/ */
Adafruit_BusIO_Register::Adafruit_BusIO_Register(Adafruit_GenericDevice *genericdevice, Adafruit_BusIO_Register::Adafruit_BusIO_Register(
uint16_t reg_addr, Adafruit_GenericDevice *genericdevice, uint16_t reg_addr, uint8_t width,
uint8_t width, uint8_t byteorder, uint8_t address_width) {
uint8_t byteorder,
uint8_t address_width) {
_i2cdevice = nullptr; _i2cdevice = nullptr;
_spidevice = nullptr; _spidevice = nullptr;
_genericdevice = genericdevice; _genericdevice = genericdevice;
@ -110,7 +108,6 @@ Adafruit_BusIO_Register::Adafruit_BusIO_Register(Adafruit_GenericDevice *generic
_width = width; _width = width;
} }
/*! /*!
* @brief Write a buffer of data to the register location * @brief Write a buffer of data to the register location
* @param buffer Pointer to data to write * @param buffer Pointer to data to write
@ -249,7 +246,6 @@ bool Adafruit_BusIO_Register::read(uint8_t *buffer, uint8_t len) {
return false; return false;
} }
/*! /*!
* @brief Read 2 bytes of data from the register location * @brief Read 2 bytes of data from the register location
* @param value Pointer to uint16_t variable to read into * @param value Pointer to uint16_t variable to read into

7
Adafruit_BusIO_Register.h
View File

@ -6,9 +6,9 @@
#if !defined(SPI_INTERFACES_COUNT) || \ #if !defined(SPI_INTERFACES_COUNT) || \
(defined(SPI_INTERFACES_COUNT) && (SPI_INTERFACES_COUNT > 0)) (defined(SPI_INTERFACES_COUNT) && (SPI_INTERFACES_COUNT > 0))
#include <Adafruit_GenericDevice.h>
#include <Adafruit_I2CDevice.h> #include <Adafruit_I2CDevice.h>
#include <Adafruit_SPIDevice.h> #include <Adafruit_SPIDevice.h>
#include <Adafruit_GenericDevice.h>
typedef enum _Adafruit_BusIO_SPIRegType { typedef enum _Adafruit_BusIO_SPIRegType {
ADDRBIT8_HIGH_TOREAD = 0, ADDRBIT8_HIGH_TOREAD = 0,
@ -58,8 +58,9 @@ public:
uint8_t width = 1, uint8_t byteorder = LSBFIRST, uint8_t width = 1, uint8_t byteorder = LSBFIRST,
uint8_t address_width = 1); uint8_t address_width = 1);
Adafruit_BusIO_Register(Adafruit_GenericDevice *genericdevice, uint16_t reg_addr, Adafruit_BusIO_Register(Adafruit_GenericDevice *genericdevice,
uint8_t width = 1, uint8_t byteorder = LSBFIRST, uint16_t reg_addr, uint8_t width = 1,
uint8_t byteorder = LSBFIRST,
uint8_t address_width = 1); uint8_t address_width = 1);
bool read(uint8_t *buffer, uint8_t len); bool read(uint8_t *buffer, uint8_t len);

10
Adafruit_GenericDevice.cpp
View File

@ -1,6 +1,7 @@
#include "Adafruit_GenericDevice.h" #include "Adafruit_GenericDevice.h"
Adafruit_GenericDevice::Adafruit_GenericDevice(busio_genericdevice_read_t read_func, Adafruit_GenericDevice::Adafruit_GenericDevice(
busio_genericdevice_read_t read_func,
busio_genericdevice_write_t write_func, busio_genericdevice_write_t write_func,
busio_genericdevice_readreg_t readreg_func, busio_genericdevice_readreg_t readreg_func,
busio_genericdevice_writereg_t writereg_func) { busio_genericdevice_writereg_t writereg_func) {
@ -30,14 +31,17 @@ bool Adafruit_GenericDevice::read(uint8_t *buffer, size_t len) {
return _read_func(buffer, len); return _read_func(buffer, len);
} }
bool Adafruit_GenericDevice::readRegister(uint8_t *addr_buf, uint8_t addrsiz, uint8_t *buf, uint16_t bufsiz) { bool Adafruit_GenericDevice::readRegister(uint8_t *addr_buf, uint8_t addrsiz,
uint8_t *buf, uint16_t bufsiz) {
if (!_begun || !_readreg_func) if (!_begun || !_readreg_func)
return false; return false;
return _readreg_func(addr_buf, addrsiz, buf, bufsiz); return _readreg_func(addr_buf, addrsiz, buf, bufsiz);
} }
bool Adafruit_GenericDevice::writeRegister(uint8_t *addr_buf, uint8_t addrsiz, const uint8_t *buf, uint16_t bufsiz) { bool Adafruit_GenericDevice::writeRegister(uint8_t *addr_buf, uint8_t addrsiz,
const uint8_t *buf,
uint16_t bufsiz) {
if (!_begun || !_writereg_func) if (!_begun || !_writereg_func)
return false; return false;

18
Adafruit_GenericDevice.h
View File

@ -5,15 +5,21 @@
typedef bool (*busio_genericdevice_read_t)(uint8_t *buffer, size_t len); typedef bool (*busio_genericdevice_read_t)(uint8_t *buffer, size_t len);
typedef bool (*busio_genericdevice_write_t)(const uint8_t *buffer, size_t len); typedef bool (*busio_genericdevice_write_t)(const uint8_t *buffer, size_t len);
typedef bool (*busio_genericdevice_readreg_t)(uint8_t *addr_buf, uint8_t addrsiz, uint8_t *buf, uint16_t bufsiz); typedef bool (*busio_genericdevice_readreg_t)(uint8_t *addr_buf,
typedef bool (*busio_genericdevice_writereg_t)(uint8_t *addr_buf, uint8_t addrsiz, const uint8_t *buf, uint16_t bufsiz); uint8_t addrsiz, uint8_t *buf,
uint16_t bufsiz);
typedef bool (*busio_genericdevice_writereg_t)(uint8_t *addr_buf,
uint8_t addrsiz,
const uint8_t *buf,
uint16_t bufsiz);
/*! /*!
* @brief Class for communicating with a device via generic read/write functions * @brief Class for communicating with a device via generic read/write functions
*/ */
class Adafruit_GenericDevice { class Adafruit_GenericDevice {
public: public:
Adafruit_GenericDevice(busio_genericdevice_read_t read_func, Adafruit_GenericDevice(
busio_genericdevice_read_t read_func,
busio_genericdevice_write_t write_func, busio_genericdevice_write_t write_func,
busio_genericdevice_readreg_t readreg_func = nullptr, busio_genericdevice_readreg_t readreg_func = nullptr,
busio_genericdevice_writereg_t writereg_func = nullptr); busio_genericdevice_writereg_t writereg_func = nullptr);
@ -22,8 +28,10 @@ public:
bool read(uint8_t *buffer, size_t len); bool read(uint8_t *buffer, size_t len);
bool write(const uint8_t *buffer, size_t len); bool write(const uint8_t *buffer, size_t len);
bool readRegister(uint8_t *addr_buf, uint8_t addrsiz, uint8_t *buf, uint16_t bufsiz); bool readRegister(uint8_t *addr_buf, uint8_t addrsiz, uint8_t *buf,
bool writeRegister(uint8_t *addr_buf, uint8_t addrsiz, const uint8_t *buf, uint16_t bufsiz); uint16_t bufsiz);
bool writeRegister(uint8_t *addr_buf, uint8_t addrsiz, const uint8_t *buf,
uint16_t bufsiz);
protected: protected:
busio_genericdevice_read_t _read_func; busio_genericdevice_read_t _read_func;