1 files changed, 108 insertions, 0 deletions
diff --git a/drivers/net/wireless/digiPiper/airohaCalibration.h b/drivers/net/wireless/digiPiper/airohaCalibration.h
new file mode 100644
index 000000000000..36543c87fc51
--- /dev/null
+++ b/drivers/net/wireless/digiPiper/airohaCalibration.h
@@ -0,0 +1,108 @@
+/*
+ * This file contains the code which performs automatic recalibration of the
+ * Airoha transceiver.
+ *
+ * Copyright (C) 2009 by Digi International Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#ifndef AIROHA_CALIBRATION_H
+#define AIROHA_CALIBRATION_H
+
+#include "pipermain.h"
+
+
+#define MAX_SAMPLES                     (3)
+
+/*
+ * Field values used for computing ABS values.
+ */
+enum {
+	OUT_POWER,
+	ADC_VAL,
+	POWER_INDEX
+};
+
+#ifdef WANT_CAL_DEBUG
+static const char *fieldDescription[] = {
+	"OUT_POWER",
+	"ADC_VAL",
+	"POWER_INDEX"
+};
+#endif
+
+/*
+ * States for the auto calibration thread.
+ */
+enum {
+	RESTART_STATE,
+	COLLECT_SAMPLES_STATE,
+	GOT_SAMPLE_STATE,
+	RECALIBRATE_STATE
+};
+
+#ifdef WANT_CAL_DEBUG
+static const char *stateText[] = {
+	"RESTART_STATE",
+	"COLLECT_SAMPLES_STATE",
+	"GOT_SAMPLE_STATE",
+	"RECALIBRATE_STATE"
+};
+#endif
+
+
+/*
+ * Slope types accepted by computeSlope().
+ */
+enum {
+	POWER_INDEX_OVER_OUT_POWER,
+	ADC_OVER_OUT_POWER,
+	OUT_POWER_OVER_ADC,
+	POWER_INDEX_OVER_ADC
+};
+
+
+typedef struct {
+	unsigned rate;		/* rate packet transmitted at */
+	unsigned int sample;	/* measured sample */
+} sampleInfo_t;
+
+struct airohaCalibrationData {
+	struct task_struct *threadCB;
+	spinlock_t lock;
+	volatile unsigned int events;
+	unsigned int sampleCount;
+	sampleInfo_t sample[MAX_SAMPLES];
+	wcd_data_t *nvram;
+	wcd_curve_t *curve;
+	int slopeTimes1000;
+	int adcSlopeTimes1000;
+	int outPowerSlopeTimes1000;
+	int powerIndexSlopeTimes1000;
+	int expectedAdc;
+	int powerIndex, correctedPowerIndex;
+	wcd_point_t *p1;
+
+
+	void *priv;
+	struct calibration_ops *cops;
+	bool initialized;
+};
+
+struct calibration_ops {
+	u16(*adc_read_peak) (struct airohaCalibrationData *);
+	void (*adc_clear_peak) (struct airohaCalibrationData *);
+	 u16(*adc_read_last_val) (struct airohaCalibrationData *);
+	void (*adc_shutdown) (struct airohaCalibrationData *);
+};
+
+
+void digiWifiInitCalibration(struct piper_priv *digi);
+void digiWifiDeInitCalibration(struct piper_priv *digi);
+int digiWifiCalibrationPowerIndex(struct piper_priv *piperp);
+
+#endif				/* AIROHA_CALIBRATION_H */