mirror of
https://github.com/markqvist/OpenModem.git
synced 2024-10-01 03:15:46 -04:00
Rolling back changes from a7a167c19b
that broke the build. Please test on actual hardware before pull-requesting "improvements"...
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cd07dc7e67
commit
1f94513b58
11
device.h
11
device.h
@ -38,17 +38,8 @@
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#define DAC_DDR DDRD
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#define LED_PORT PORTB
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#define LED_DDR DDRB
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#define PTT_PORT PORTD
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#define PTT_DDR DDRD
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#define ADC_PORT PORTC
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#define ADC_DDR DDRC
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// Pins 3-7 on Port D = Arduino D3 - D7
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#define DAC_HIGH _BV(7)
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#define DAC_PINS _BV(7)&_BV(6)&_BV(5)&_BV(4)
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#define LED_TX 1 // Arduino D9
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#define LED_RX 2 // Arduino D10
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#define PTT_TX 3 // Arduino D11
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#define ADC_NO 0 // Arduino A0
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#endif
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#endif
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#endif
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@ -38,9 +38,9 @@ void AFSK_hw_init(void) {
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ADMUX = 0;
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}
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ADC_DDR &= ~_BV(ADC_NO);
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ADC_PORT &= ~_BV(ADC_NO);
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DIDR0 |= _BV(ADC_NO);
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ADC_DDR &= ~_BV(0);
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ADC_PORT &= ~_BV(0);
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DIDR0 |= _BV(0);
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ADCSRB = _BV(ADTS2) |
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_BV(ADTS1) |
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_BV(ADTS0);
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@ -51,7 +51,6 @@ void AFSK_hw_init(void) {
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_BV(ADPS2);
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AFSK_DAC_INIT();
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PTT_INIT();
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LED_TX_INIT();
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LED_RX_INIT();
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}
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@ -85,7 +84,6 @@ static void AFSK_txStart(Afsk *afsk) {
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afsk->phaseAcc = 0;
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afsk->bitstuffCount = 0;
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afsk->sending = true;
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PTT_TX_ON();
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LED_TX_ON();
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afsk->preambleLength = DIV_ROUND(custom_preamble * BITRATE, 8000);
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AFSK_DAC_IRQ_START();
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@ -123,7 +121,6 @@ uint8_t AFSK_dac_isr(Afsk *afsk) {
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if (fifo_isempty(&afsk->txFifo) && afsk->tailLength == 0) {
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AFSK_DAC_IRQ_STOP();
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afsk->sending = false;
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PTT_TX_OFF();
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LED_TX_OFF();
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return 0;
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} else {
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@ -144,7 +141,6 @@ uint8_t AFSK_dac_isr(Afsk *afsk) {
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if (fifo_isempty(&afsk->txFifo)) {
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AFSK_DAC_IRQ_STOP();
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afsk->sending = false;
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PTT_TX_OFF();
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LED_TX_OFF();
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return 0;
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} else {
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@ -503,12 +499,9 @@ ISR(ADC_vect) {
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TIFR1 = _BV(ICF1);
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AFSK_adc_isr(AFSK_modem, ((int16_t)((ADC) >> 2) - 128));
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if (hw_afsk_dac_isr) {
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// Set DAC pin(s) according to position in SIN wave.
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DAC_PORT |= (AFSK_dac_isr(AFSK_modem) & DAC_PINS);
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DAC_PORT = (AFSK_dac_isr(AFSK_modem) & 0xF0) | _BV(3);
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} else {
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// Set DAC pin(s) to the zero point in the SIN wave.
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// This is represented by setting only the high-bit.
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DAC_PORT = (DAC_PORT & (~DAC_PINS)) | DAC_HIGH;
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DAC_PORT = 128;
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}
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++_clock;
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}
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}
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@ -142,30 +142,23 @@ typedef struct Afsk
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#define AFSK_DAC_IRQ_START() do { extern bool hw_afsk_dac_isr; hw_afsk_dac_isr = true; } while (0)
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#define AFSK_DAC_IRQ_STOP() do { extern bool hw_afsk_dac_isr; hw_afsk_dac_isr = false; } while (0)
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// DAC_PINS equals b11111000 which on port D on Arduino sets D3, D4, D5, D6, D7
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// to be outputs.
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#define AFSK_DAC_INIT() do { DAC_DDR |= DAC_PINS; } while (0)
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#define AFSK_DAC_INIT() do { DAC_DDR |= 0xF8; } while (0)
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// Here's some macros for controlling the RX/TX LEDs
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// THE _INIT() functions writes to the DDRB register
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// to configure the pins as output pins, and the _ON()
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// and _OFF() functions writes to the PORT registers
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// to turn the pins on or off.
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#define LED_TX_INIT() do { LED_DDR |= _BV(LED_TX); } while (0)
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#define LED_TX_ON() do { LED_PORT |= _BV(LED_TX); } while (0)
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#define LED_TX_OFF() do { LED_PORT &= ~_BV(LED_TX); } while (0)
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#define LED_TX_INIT() do { LED_DDR |= _BV(1); } while (0)
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#define LED_TX_ON() do { LED_PORT |= _BV(1); } while (0)
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#define LED_TX_OFF() do { LED_PORT &= ~_BV(1); } while (0)
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#define LED_RX_INIT() do { LED_DDR |= _BV(LED_RX); } while (0)
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#define LED_RX_ON() do { LED_PORT |= _BV(LED_RX); } while (0)
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#define LED_RX_OFF() do { LED_PORT &= ~_BV(LED_RX); } while (0)
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// Along the same lines, these initialize and control the PTT signal
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#define PTT_INIT() do { PTT_DDR |= _BV(PTT_TX); } while (0)
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#define PTT_TX_ON() do { PTT_PORT |= _BV(PTT_TX); } while (0)
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#define PTT_TX_OFF() do { PTT_PORT &= ~_BV(PTT_TX); } while (0)
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#define LED_RX_INIT() do { LED_DDR |= _BV(2); } while (0)
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#define LED_RX_ON() do { LED_PORT |= _BV(2); } while (0)
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#define LED_RX_OFF() do { LED_PORT &= ~_BV(2); } while (0)
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void AFSK_init(Afsk *afsk);
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void AFSK_transmit(char *buffer, size_t size);
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void AFSK_poll(Afsk *afsk);
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#endif
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#endif
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