1 files changed, 92 insertions, 0 deletions
diff --git a/software/hhd70dongle/hhd70.c b/software/hhd70dongle/hhd70.c
new file mode 100644
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+++ b/software/hhd70dongle/hhd70.c
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+/*
+ *
+ *  mur.sat
+ *
+ *  Somewhen in the year 20xx, mur.at will have a nano satellite launched
+ *  into a low earth orbit (310 km above the surface of our planet). The
+ *  satellite itself is a TubeSat personal satellite kit, developed and
+ *  launched by interorbital systems. mur.sat is a joint venture of mur.at,
+ *  ESC im Labor and realraum.
+ *
+ *  Please visit the project hompage at sat.mur.at for further information.
+ *
+ *
+ *  Copyright (C) 2012 Bernhard Tittelbach <xro@realraum.at>
+ *                2015 Christian Pointner <equinox@mur.at>
+ *
+ *  This file is part of mur.sat.
+ *
+ *  mur.sat is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  any later version.
+ *
+ *  mur.sat 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with mur.sat. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "LUFA/Drivers/Peripheral/SPI.h"
+
+#include "cc1101.h"
+#include "hhd70.h"
+
+#define SPI_DDR DDRB
+#define SPI_PORT PORTB
+#define SPI_PIN  PINB
+#define CS   DDB0
+#define SCK  DDB1
+#define MOSI DDB2
+#define MISO DDB3
+#define GDO2 DDB4
+#define GDO0 DDB5
+#define TE   DDB7
+
+/*
+ * internal functions
+ */
+
+void hhd70_spi_cs_enable(void)
+{
+  SPI_PORT &= ~(1<<CS);
+}
+
+void hhd70_spi_cs_disable(void)
+{
+  SPI_PORT |= (1<<CS);
+}
+
+uint8_t hhd70_spi_get_miso(void)
+{
+  return (SPI_PIN & (1<<MISO));
+}
+
+static cc1101_driver_conf_t cc1101_conf = {
+  .spi_cs_enable = hhd70_spi_cs_enable,
+  .spi_cs_disable = hhd70_spi_cs_disable,
+  .spi_read_miso = hhd70_spi_get_miso,
+  .spi_write_byte = SPI_SendByte,
+  .spi_read_byte = SPI_ReceiveByte,
+  .spi_transfer_byte = SPI_TransferByte,
+  .freq_corr = CC1101_FREQ_CORR(26000000)
+};
+
+/*
+ * EXTERNAL INTERFACE
+ */
+
+void hhd70_init(void)
+{
+  SPI_Init(SPI_SPEED_FCPU_DIV_4 | SPI_ORDER_MSB_FIRST | SPI_SCK_LEAD_RISING |
+           SPI_SAMPLE_LEADING | SPI_MODE_MASTER);
+
+  SPI_DDR |= (1<<CS);
+  SPI_PORT |= (1<<CS);
+
+  cc1101_init(cc1101_conf);
+}