From 66cdf851a8e945adf702088d9f78f850c8b8932c Mon Sep 17 00:00:00 2001
From: "Matthias P. Braendli" <matthias.braendli@mpb.li>
Date: Sat, 26 Oct 2019 23:29:22 +0200
Subject: Add preliminary mAh accumulator

---
 sw/pins.h | 54 +++++++++++++++++++++++++++++++++++++-----------------
 1 file changed, 37 insertions(+), 17 deletions(-)

(limited to 'sw/pins.h')

diff --git a/sw/pins.h b/sw/pins.h
index 6dc75bc..c69870d 100644
--- a/sw/pins.h
+++ b/sw/pins.h
@@ -26,9 +26,10 @@
 
 #include <stdlib.h>
 #include <stdint.h>
+#include <avr/io.h>
+#include <avr/interrupt.h>
 
 // Definitions allocation pin
-#define PIN(x) (1 << x)
 
 /* All relay signals PINx_Kx have external pulldown.
  * All pins whose name ends in 'n' are active low */
@@ -37,38 +38,57 @@
 // lib/pins_arduino.h
 
 // PORT B
-constexpr uint8_t PINB_STATUSn = PIN(0);
+constexpr uint8_t PINB_STATUSn = _BV(0);
 // Pins 2,3,4,5 = SPI
-constexpr uint8_t PINB_SPI_LTC_CSn = PIN(2); // with external pullup
-constexpr uint8_t PINB_SPI_MOSI = PIN(3);
-constexpr uint8_t PINB_SPI_MISO = PIN(4);
-constexpr uint8_t PINB_SPI_SCK = PIN(5);
+constexpr uint8_t PINB_SPI_LTC_CSn = _BV(2); // with external pullup
+constexpr uint8_t PINB_SPI_MOSI = _BV(3);
+constexpr uint8_t PINB_SPI_MISO = _BV(4);
+constexpr uint8_t PINB_SPI_SCK = _BV(5);
 
 constexpr uint8_t PINB_OUTPUTS =
     PINB_STATUSn | PINB_SPI_SCK | PINB_SPI_MOSI | PINB_SPI_LTC_CSn;
 
+constexpr uint8_t PINB_INIT =
+    PINB_STATUSn | PINB_SPI_LTC_CSn;
+
 // PORT C
-constexpr uint8_t PINC_ADC0 = PIN(0);
-constexpr uint8_t PINC_ADC1 = PIN(1);
-constexpr uint8_t PINC_K3_RESET = PIN(2);
-constexpr uint8_t PINC_K3_SET = PIN(3);
-constexpr uint8_t PINC_K2_RESET = PIN(4);
-constexpr uint8_t PINC_K2_SET = PIN(5);
+constexpr uint8_t PINC_ADC0 = _BV(0);
+constexpr uint8_t PINC_ADC1 = _BV(1);
+constexpr uint8_t PINC_K3_RESET = _BV(2);
+constexpr uint8_t PINC_K3_SET = _BV(3);
+constexpr uint8_t PINC_K2_RESET = _BV(4);
+constexpr uint8_t PINC_K2_SET = _BV(5);
 
 constexpr uint8_t PINC_OUTPUTS =
     PINC_K3_RESET | PINC_K3_SET |
     PINC_K2_RESET | PINC_K2_SET;
 
+constexpr uint8_t PINC_INIT = 0;
+
 // PORT D
 // Pins 0,1 = UART RX,TX
-constexpr uint8_t PIND_UART_RX = PIN(0);
-constexpr uint8_t PIND_UART_TX = PIN(1);
+constexpr uint8_t PIND_UART_RX = _BV(0);
+constexpr uint8_t PIND_UART_TX = _BV(1);
 
-constexpr uint8_t PIND_ONEWIRE = PIN(4); // with exteral pullup
+constexpr uint8_t PIND_ONEWIRE = _BV(4); // with exteral pullup
 
-constexpr uint8_t PIND_K1_RESET = PIN(5);
-constexpr uint8_t PIND_K1_SET = PIN(6);
+constexpr uint8_t PIND_K1_RESET = _BV(5);
+constexpr uint8_t PIND_K1_SET = _BV(6);
 
 constexpr uint8_t PIND_OUTPUTS =
     PIND_UART_TX |
     PIND_K1_RESET | PIND_K1_SET;
+
+constexpr uint8_t PIND_INIT = 0;
+
+inline void pins_set_status(bool enable)
+{
+    cli();
+    if (enable) {
+        PORTB &= ~PINB_STATUSn;
+    }
+    else {
+        PORTB |= PINB_STATUSn;
+    }
+    sei();
+}
-- 
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