+/*
+ * This file is part of the sigrok-firmware-fx2lafw project.
+ *
+ * Copyright (C) 2009 Ubixum, Inc.
+ * Copyright (C) 2015 Jochen Hoenicke
+ * Copyright (C) 2024 Steve Markgraf
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <fx2macros.h>
+#include <fx2ints.h>
+#include <autovector.h>
+#include <delay.h>
+#include <setupdat.h>
+
+#define SET_ANALOG_MODE()
+
+#define SET_COUPLING(x) set_coupling_pso2020(x)
+
+#define SET_CALIBRATION_PULSE(x)
+
+#define TOGGLE_CALIBRATION_PIN()
+
+#define LED_CLEAR() do { PA6 = 1; IOE |= (1 << 2); IOE &= ~(1 << 1); } while (0)
+#define LED_GREEN() do { PA6 = 0; IOE |= (1 << 2); } while (0)
+#define LED_RED() do { PA6 = 1; IOE &= ~(1 << 2); } while (0)
+#define LED_WHITE() do { IOE |= (1 << 1); } while (0)
+
+#define MUX_S0 (1 << 2)
+#define MUX_S1 (1 << 1)
+
+#define TIMER2_VAL 500
+
+/* CTLx pin index (IFCLK, ADC clock input). */
+#define CTL_BIT 0
+
+#define OUT0 ((1 << CTL_BIT) << 4) /* OEx = 1, CTLx = 0 */
+
+static const struct samplerate_info samplerates[] = {
+ { 48, 0x80, 0, 3, 0, 0x00, 0xea },
+ { 30, 0x80, 0, 3, 0, 0x00, 0xaa },
+ { 24, 1, 0, 2, 1, OUT0, 0xca },
+ { 16, 1, 1, 2, 0, OUT0, 0xca },
+ { 12, 2, 1, 2, 0, OUT0, 0xca },
+ { 8, 3, 2, 2, 0, OUT0, 0xca },
+ { 4, 6, 5, 2, 0, OUT0, 0xca },
+ { 2, 12, 11, 2, 0, OUT0, 0xca },
+ { 1, 24, 23, 2, 0, OUT0, 0xca },
+ { 50, 48, 47, 2, 0, OUT0, 0xca },
+ { 20, 120, 119, 2, 0, OUT0, 0xca },
+ { 10, 240, 239, 2, 0, OUT0, 0xca },
+};
+
+/**
+ * Control analog mux and relays to switch voltage ranges
+ */
+static BOOL set_voltage(BYTE channel, BYTE val)
+{
+ BYTE bits = 0;
+ BYTE mask = MUX_S0 | MUX_S1;
+
+ /* ADC channel B is only used for interleaved sampling
+ * to get 96 MHz sampling rate, so it shares the
+ * analog input circuitry with channel A
+ * Instead of returning an error, silently ignore it */
+ if (channel > 0)
+ return TRUE;
+
+ switch (val) {
+ case 1:
+ /* 10 and 20V */
+ bits = MUX_S1;
+ break;
+ case 2:
+ /* 5V */
+ bits = MUX_S0;
+ break;
+ case 5:
+ /* 2V */
+ break;
+ case 10:
+ /* 1V */
+ bits = MUX_S0 | MUX_S1;
+ break;
+ case 11:
+ /* 500 mV */
+ bits = MUX_S1;
+ break;
+ case 12:
+ /* 200mV */
+ bits = MUX_S0;
+ break;
+ case 13:
+ /* 100mV */
+ break;
+ case 14:
+ /* 20 and 50mV in original software */
+ bits = MUX_S0 | MUX_S1;
+ break;
+ default:
+ return FALSE;
+ }
+
+ /* Switch relay for high voltage range */
+ if (val <= 10)
+ PA7 = 1;
+ else
+ PA7 = 0;
+
+ IOC = (IOC & ~mask) | (bits & mask);
+
+ return TRUE;
+}
+
+/**
+ * Switch between AC and DC coupling
+ */
+static void set_coupling_pso2020(BYTE coupling_cfg)
+{
+ if (coupling_cfg & 0x01)
+ PC4 = 0;
+ else
+ PC4 = 1;
+}
+
+#include <scope.inc>
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