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Allow the I2C slace address to be dynamic, as it should be.

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This commit is contained in:
Jonathan Naylor 2020-11-24 11:35:59 +00:00
parent 53984c3d93
commit 8886a46588
11 changed files with 70 additions and 51 deletions
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18
I2CModem.cpp
View file

@ -22,7 +22,8 @@
CI2CModem::CI2CModem(IModem* modem) :
m_modem(modem)
m_modem(modem),
m_address(0x00U)
{
assert(modem != NULL);
}
@ -36,6 +37,11 @@ bool CI2CModem::open(unsigned char displayType)
return true;
}
void CI2CModem::setAddress(unsigned char address)
{
m_address = address;
}
void CI2CModem::setDataMode()
{
}
@ -49,7 +55,7 @@ void CI2CModem::sendCommand(uint8_t c0, uint8_t c1, uint8_t c2)
buff[2U] = c2;
// Write Data on I2C
m_modem->writeI2CCommand(buff, 3U);
m_modem->writeI2CCommand(m_address, buff, 3U);
}
void CI2CModem::sendCommand(uint8_t c0, uint8_t c1)
@ -60,23 +66,23 @@ void CI2CModem::sendCommand(uint8_t c0, uint8_t c1)
buff[1U] = c1;
// Write Data on I2C
m_modem->writeI2CCommand(buff, 2U);
m_modem->writeI2CCommand(m_address, buff, 2U);
}
void CI2CModem::sendCommand(uint8_t c)
{
// Write Data on I2C
m_modem->writeI2CCommand(&c, 1U);
m_modem->writeI2CCommand(m_address, &c, 1U);
}
void CI2CModem::writeData(const uint8_t* data, uint16_t length)
{
m_modem->writeI2CData(data, length);
m_modem->writeI2CData(m_address, data, length);
}
void CI2CModem::writeData(uint8_t c)
{
m_modem->writeI2CData(&c, 1U);
m_modem->writeI2CData(m_address, &c, 1U);
}
void CI2CModem::close()

3
I2CModem.h
View file

@ -29,6 +29,8 @@ public:
virtual bool open(unsigned char displayType);
virtual void setAddress(unsigned char addr);
virtual void setDataMode();
virtual void sendCommand(uint8_t c0, uint8_t c1, uint8_t c2);
@ -42,6 +44,7 @@ public:
private:
IModem* m_modem;
unsigned char m_address;
};
#endif

32
I2CPi.cpp
View file

@ -26,7 +26,6 @@ const unsigned char OLED_ADAFRUIT_SPI_128x64 = 1U;
CI2CPi::CI2CPi() :
m_displayType(0U),
m_spi(false)
{
}
@ -37,8 +36,6 @@ CI2CPi::~CI2CPi()
bool CI2CPi::open(unsigned char displayType)
{
m_displayType = displayType;
if (displayType == OLED_ADAFRUIT_SPI_128x32 ||
displayType == OLED_ADAFRUIT_SPI_128x64) {
m_spi = true;
@ -83,27 +80,6 @@ bool CI2CPi::open(unsigned char displayType)
if (!bcm2835_i2c_begin())
return false;
switch (displayType) {
case OLED_ADAFRUIT_I2C_128x32:
case OLED_ADAFRUIT_I2C_128x64:
i2cAddr = ADAFRUIT_I2C_ADDRESS;
break;
case OLED_SEEED_I2C_128x64:
case OLED_SEEED_I2C_96x96:
i2cAddr = SEEED_I2C_ADDRESS ;
break;
case OLED_SH1106_I2C_128x64:
i2cAddr = SH1106_I2C_ADDRESS;
break;
default:
return false;
}
bcm2835_i2c_setSlaveAddress(i2cAddr);
// Setup reset pin direction as output
bcm2835_gpio_fsel(OLED_I2C_RESET, BCM2835_GPIO_FSEL_OUTP);
@ -127,7 +103,13 @@ bool CI2CPi::open(unsigned char displayType)
return true;
}
void CI2CMPi::setDataMode()
void CI2CPi::setAddress(unsigned char address)
{
if (!m_spi)
bcm2835_i2c_setSlaveAddress(address);
}
void CI2CPi::setDataMode()
{
if (m_spi) {
// Setup D/C line to high to switch to data mode

3
I2CPi.h
View file

@ -28,6 +28,8 @@ public:
virtual bool open(unsigned char displayType);
virtual void setAddress(unsigned char addr);
virtual void setDataMode();
virtual void sendCommand(uint8_t c0, uint8_t c1, uint8_t c2);
@ -40,7 +42,6 @@ public:
virtual void close();
private:
unsigned char m_displayType;
bool m_spi;
};

2
I2CPort.h
View file

@ -27,6 +27,8 @@ public:
virtual bool open(unsigned char displayType) = 0;
virtual void setAddress(unsigned char addr) = 0;
virtual void setDataMode() = 0;
virtual void sendCommand(uint8_t c0, uint8_t c1, uint8_t c2) = 0;

4
Modem.h
View file

@ -104,8 +104,8 @@ public:
virtual bool writeSerial(const unsigned char* data, unsigned int length) = 0;
virtual unsigned int readSerial(unsigned char* data, unsigned int length) = 0;
virtual bool writeI2CCommand(const unsigned char* data, unsigned int length) = 0;
virtual bool writeI2CData(const unsigned char* data, unsigned int length) = 0;
virtual bool writeI2CCommand(unsigned char address, const unsigned char* data, unsigned int length) = 0;
virtual bool writeI2CData(unsigned char address, const unsigned char* data, unsigned int length) = 0;
virtual unsigned char getMode() const = 0;
virtual bool setMode(unsigned char mode) = 0;

4
NullModem.h
View file

@ -106,8 +106,8 @@ public:
virtual bool writeSerial(const unsigned char* data, unsigned int length) { return true; };
virtual unsigned int readSerial(unsigned char* data, unsigned int length) { return 0U; };
virtual bool writeI2CCommand(const unsigned char* data, unsigned int length) { return true; };
virtual bool writeI2CData(const unsigned char* data, unsigned int length) { return true; };
virtual bool writeI2CCommand(unsigned char address, const unsigned char* data, unsigned int length) { return true; };
virtual bool writeI2CData(unsigned char address, const unsigned char* data, unsigned int length) { return true; };
virtual unsigned char getMode() const { return MODE_IDLE; };
virtual bool setMode(unsigned char mode) { return true; };

27
OLED.cpp
View file

@ -105,6 +105,12 @@ const unsigned char OLED_SEEED_I2C_128x64 = 4U;
const unsigned char OLED_SEEED_I2C_96x96 = 5U;
const unsigned char OLED_SH1106_I2C_128x64 = 6U;
// OLED type I2C Address
const unsigned char ADAFRUIT_I2C_ADDRESS = 0x3CU; /* 011110+SA0+RW - 0x3C or 0x3D */
const unsigned char SEEED_I2C_ADDRESS = 0x3CU; /* 011110+SA0+RW - 0x3C or 0x3D */
const unsigned char SH1106_I2C_ADDRESS = 0x3CU;
// standard ascii 5x7 font
const uint8_t FONT[] = {
0x00U, 0x00U, 0x00U, 0x00U, 0x00U,
@ -547,21 +553,38 @@ m_grayL(0x00U) // XXX
switch (displayType) {
case OLED_ADAFRUIT_SPI_128x32:
case OLED_ADAFRUIT_I2C_128x32:
port->setAddress(ADAFRUIT_I2C_ADDRESS);
m_width = 128U;
m_height = 32U;
break;
case OLED_ADAFRUIT_SPI_128x64:
case OLED_ADAFRUIT_I2C_128x64:
case OLED_SEEED_I2C_128x64:
case OLED_SH1106_I2C_128x64:
port->setAddress(ADAFRUIT_I2C_ADDRESS);
m_width = 128U;
m_height = 64U;
break;
case OLED_SEEED_I2C_128x64:
port->setAddress(SEEED_I2C_ADDRESS);
m_width = 128U;
m_height = 64U;
break;
case OLED_SH1106_I2C_128x64:
port->setAddress(SH1106_I2C_ADDRESS);
m_width = 128U;
m_height = 64U;
break;
case OLED_SEEED_I2C_96x96:
port->setAddress(SEEED_I2C_ADDRESS);
m_width = 96U;
m_height = 96U;
break;
default:
port->setAddress(0x00U);
break;
}
}

22
SerialModem.cpp
View file

@ -1628,7 +1628,7 @@ bool CSerialModem::writeSerial(const unsigned char* data, unsigned int length)
return true;
}
bool CSerialModem::writeI2CCommand(const unsigned char* data, unsigned int length)
bool CSerialModem::writeI2CCommand(unsigned char address, const unsigned char* data, unsigned int length)
{
assert(m_serial != NULL);
assert(data != NULL);
@ -1637,19 +1637,20 @@ bool CSerialModem::writeI2CCommand(const unsigned char* data, unsigned int lengt
unsigned char buffer[255U];
buffer[0U] = MMDVM_FRAME_START;
buffer[1U] = length + 4U;
buffer[1U] = length + 5U;
buffer[2U] = MMDVM_I2C_DATA;
buffer[3U] = SSD_Command_Mode;
buffer[3U] = address;
buffer[4U] = SSD_Command_Mode;
::memcpy(buffer + 4U, data, length);
::memcpy(buffer + 5U, data, length);
m_serial->write(buffer, length + 4U);
m_serial->write(buffer, length + 5U);
return true;
}
bool CSerialModem::writeI2CData(const unsigned char* data, unsigned int length)
bool CSerialModem::writeI2CData(unsigned char address, const unsigned char* data, unsigned int length)
{
assert(m_serial != NULL);
assert(data != NULL);
@ -1658,14 +1659,15 @@ bool CSerialModem::writeI2CData(const unsigned char* data, unsigned int length)
unsigned char buffer[255U];
buffer[0U] = MMDVM_FRAME_START;
buffer[1U] = length + 4U;
buffer[1U] = length + 5U;
buffer[2U] = MMDVM_I2C_DATA;
buffer[3U] = SSD_Data_Mode;
buffer[3U] = address;
buffer[4U] = SSD_Data_Mode;
::memcpy(buffer + 4U, data, length);
::memcpy(buffer + 5U, data, length);
m_serial->write(buffer, length + 4U);
m_serial->write(buffer, length + 5U);
return true;
}

4
SerialModem.h
View file

@ -124,8 +124,8 @@ public:
virtual bool writeSerial(const unsigned char* data, unsigned int length);
virtual unsigned int readSerial(unsigned char* data, unsigned int length);
virtual bool writeI2CCommand(const unsigned char* data, unsigned int length);
virtual bool writeI2CData(const unsigned char* data, unsigned int length);
virtual bool writeI2CCommand(unsigned char address, const unsigned char* data, unsigned int length);
virtual bool writeI2CData(unsigned char address, const unsigned char* data, unsigned int length);
virtual unsigned char getMode() const;
virtual bool setMode(unsigned char mode);

2
Version.h
View file

@ -19,6 +19,6 @@
#if !defined(VERSION_H)
#define VERSION_H
const char* VERSION = "20201118";
const char* VERSION = "20201124";
#endif