BladeRF library compiles

1 files changed, 196 insertions, 0 deletions

diff --git a/Radio/HW/BladeRF/src/driver/fpga_trigger.c b/Radio/HW/BladeRF/src/driver/fpga_trigger.c
new file mode 100644
index 0000000..67818a0
--- /dev/null
+++ b/Radio/HW/BladeRF/src/driver/fpga_trigger.c
@@ -0,0 +1,196 @@
+/*
+ * This file is part of the bladeRF project:
+ *   http://www.github.com/nuand/bladeRF
+ *
+ * Copyright (C) 2016 Nuand LLC
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <libbladeRF.h>
+
+#include "log.h"
+
+#include "fpga_trigger.h"
+
+static bool is_valid_signal(bladerf_trigger_signal signal)
+{
+    switch (signal) {
+        case BLADERF_TRIGGER_J71_4:
+        case BLADERF_TRIGGER_J51_1:
+        case BLADERF_TRIGGER_MINI_EXP_1:
+
+        case BLADERF_TRIGGER_USER_0:
+        case BLADERF_TRIGGER_USER_1:
+        case BLADERF_TRIGGER_USER_2:
+        case BLADERF_TRIGGER_USER_3:
+        case BLADERF_TRIGGER_USER_4:
+        case BLADERF_TRIGGER_USER_5:
+        case BLADERF_TRIGGER_USER_6:
+        case BLADERF_TRIGGER_USER_7:
+            return true;
+
+        default:
+            log_debug("Invalid trigger signal: %d\n", signal);
+            return false;
+    }
+}
+
+int fpga_trigger_read(struct bladerf *dev, bladerf_channel ch,
+                      bladerf_trigger_signal signal, uint8_t *regval)
+{
+    if (ch != BLADERF_CHANNEL_RX(0) && ch != BLADERF_CHANNEL_TX(0))
+        return BLADERF_ERR_INVAL;
+
+    if (!is_valid_signal(signal))
+        return BLADERF_ERR_INVAL;
+
+    return dev->backend->read_trigger(dev, ch, signal, regval);
+}
+
+int fpga_trigger_write(struct bladerf *dev, bladerf_channel ch,
+                       bladerf_trigger_signal signal, uint8_t regval)
+{
+    if (ch != BLADERF_CHANNEL_RX(0) && ch != BLADERF_CHANNEL_TX(0))
+        return BLADERF_ERR_INVAL;
+
+    if (!is_valid_signal(signal))
+        return BLADERF_ERR_INVAL;
+
+    return dev->backend->write_trigger(dev, ch, signal, regval);
+}
+
+int fpga_trigger_init(struct bladerf *dev, bladerf_channel ch,
+                      bladerf_trigger_signal signal,
+                 struct bladerf_trigger *trigger)
+
+{
+    int status;
+    uint8_t regval;
+
+    trigger->options = 0;
+
+    status = fpga_trigger_read(dev, ch, signal, &regval);
+    if (status != 0) {
+        trigger->channel = BLADERF_CHANNEL_INVALID;
+        trigger->role   = BLADERF_TRIGGER_ROLE_INVALID;
+        trigger->signal = BLADERF_TRIGGER_INVALID;
+        return status;
+    }
+
+    if ((regval & BLADERF_TRIGGER_REG_MASTER) != 0) {
+        trigger->role = BLADERF_TRIGGER_ROLE_MASTER;
+    } else {
+        trigger->role = BLADERF_TRIGGER_ROLE_SLAVE;
+    }
+
+    trigger->channel = ch;
+    trigger->signal = signal;
+
+    return 0;
+}
+
+int fpga_trigger_arm(struct bladerf *dev,
+                     const struct bladerf_trigger *trigger, bool arm)
+{
+    int status;
+    uint8_t regval;
+
+    status = fpga_trigger_read(dev, trigger->channel, trigger->signal, &regval);
+    if (status != 0) {
+        return status;
+    }
+
+    /* Reset any previous fire request */
+    regval &= ~BLADERF_TRIGGER_REG_FIRE;
+
+    if (arm) {
+        regval |= BLADERF_TRIGGER_REG_ARM;
+    } else {
+        regval &= ~BLADERF_TRIGGER_REG_ARM;
+    }
+
+    switch (trigger->role) {
+        case BLADERF_TRIGGER_ROLE_MASTER:
+            regval |= BLADERF_TRIGGER_REG_MASTER;
+            break;
+
+        case BLADERF_TRIGGER_ROLE_SLAVE:
+            regval &= ~BLADERF_TRIGGER_REG_MASTER;
+            break;
+
+        case BLADERF_TRIGGER_ROLE_DISABLED:
+            regval = 0;
+            break;
+
+        default:
+            log_debug("Invalid trigger role: %d\n", trigger->role);
+            return BLADERF_ERR_INVAL;
+    }
+
+    status = fpga_trigger_write(dev, trigger->channel, trigger->signal, regval);
+
+    return status;
+}
+
+int fpga_trigger_fire(struct bladerf *dev,
+                      const struct bladerf_trigger *trigger)
+{
+    int status;
+    uint8_t regval;
+
+    status = fpga_trigger_read(dev, trigger->channel, trigger->signal, &regval);
+    if (status != 0) {
+        return status;
+    }
+
+    regval |= BLADERF_TRIGGER_REG_FIRE;
+    status = fpga_trigger_write(dev, trigger->channel, trigger->signal, regval);
+
+    return status;
+}
+
+int fpga_trigger_state(struct bladerf *dev, const struct bladerf_trigger *trigger,
+                       bool *is_armed, bool *fired, bool *fire_requested)
+{
+    int status;
+    uint8_t regval;
+
+    status = fpga_trigger_read(dev, trigger->channel, trigger->signal, &regval);
+    if (status != 0) {
+        *fired = false;
+        return status;
+    }
+
+    if (is_armed != NULL) {
+        *is_armed = (regval & BLADERF_TRIGGER_REG_ARM) != 0;
+    }
+
+    if (fired != NULL) {
+        /* Signal is active-low */
+        *fired = (regval & BLADERF_TRIGGER_REG_LINE) == 0;
+    }
+
+    if (fire_requested != NULL) {
+        if (trigger->role == BLADERF_TRIGGER_ROLE_MASTER) {
+            *fire_requested = (regval & BLADERF_TRIGGER_REG_FIRE) != 0;
+        } else {
+            *fire_requested = false;
+        }
+    }
+
+    return status;
+}
+