mfd: si476x: Add header files and Kbuild plumbing
This patch adds all necessary header files and Kbuild plumbing for the
core driver for Silicon Laboratories Si476x series of AM/FM tuner
chips.
The driver as a whole is implemented as an MFD device and this patch
adds a core portion of it that provides all the necessary
functionality to the two other drivers that represent radio and audio
codec subsystems of the chip.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/include/linux/mfd/si476x-reports.h b/include/linux/mfd/si476x-reports.h
new file mode 100644
index 0000000..e0b9455
--- /dev/null
+++ b/include/linux/mfd/si476x-reports.h
@@ -0,0 +1,163 @@
+/*
+ * include/media/si476x-platform.h -- Definitions of the data formats
+ * returned by debugfs hooks
+ *
+ * Copyright (C) 2013 Andrey Smirnov
+ *
+ * Author: Andrey Smirnov <andrew.smirnov@gmail.com>
+ *
+ * This program 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; version 2 of the License.
+ *
+ * This program 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.
+ *
+ */
+
+#ifndef __SI476X_REPORTS_H__
+#define __SI476X_REPORTS_H__
+
+/**
+ * struct si476x_rsq_status - structure containing received signal
+ * quality
+ * @multhint: Multipath Detect High.
+ * true - Indicatedes that the value is below
+ * FM_RSQ_MULTIPATH_HIGH_THRESHOLD
+ * false - Indicatedes that the value is above
+ * FM_RSQ_MULTIPATH_HIGH_THRESHOLD
+ * @multlint: Multipath Detect Low.
+ * true - Indicatedes that the value is below
+ * FM_RSQ_MULTIPATH_LOW_THRESHOLD
+ * false - Indicatedes that the value is above
+ * FM_RSQ_MULTIPATH_LOW_THRESHOLD
+ * @snrhint: SNR Detect High.
+ * true - Indicatedes that the value is below
+ * FM_RSQ_SNR_HIGH_THRESHOLD
+ * false - Indicatedes that the value is above
+ * FM_RSQ_SNR_HIGH_THRESHOLD
+ * @snrlint: SNR Detect Low.
+ * true - Indicatedes that the value is below
+ * FM_RSQ_SNR_LOW_THRESHOLD
+ * false - Indicatedes that the value is above
+ * FM_RSQ_SNR_LOW_THRESHOLD
+ * @rssihint: RSSI Detect High.
+ * true - Indicatedes that the value is below
+ * FM_RSQ_RSSI_HIGH_THRESHOLD
+ * false - Indicatedes that the value is above
+ * FM_RSQ_RSSI_HIGH_THRESHOLD
+ * @rssilint: RSSI Detect Low.
+ * true - Indicatedes that the value is below
+ * FM_RSQ_RSSI_LOW_THRESHOLD
+ * false - Indicatedes that the value is above
+ * FM_RSQ_RSSI_LOW_THRESHOLD
+ * @bltf: Band Limit.
+ * Set if seek command hits the band limit or wrapped to
+ * the original frequency.
+ * @snr_ready: SNR measurement in progress.
+ * @rssiready: RSSI measurement in progress.
+ * @afcrl: Set if FREQOFF >= MAX_TUNE_ERROR
+ * @valid: Set if the channel is valid
+ * rssi < FM_VALID_RSSI_THRESHOLD
+ * snr < FM_VALID_SNR_THRESHOLD
+ * tune_error < FM_VALID_MAX_TUNE_ERROR
+ * @readfreq: Current tuned frequency.
+ * @freqoff: Signed frequency offset.
+ * @rssi: Received Signal Strength Indicator(dBuV).
+ * @snr: RF SNR Indicator(dB).
+ * @lassi:
+ * @hassi: Low/High side Adjacent(100 kHz) Channel Strength Indicator
+ * @mult: Multipath indicator
+ * @dev: Who knows? But values may vary.
+ * @readantcap: Antenna tuning capacity value.
+ * @assi: Adjacent Channel(+/- 200kHz) Strength Indicator
+ * @usn: Ultrasonic Noise Inticator in -DBFS
+ */
+struct si476x_rsq_status_report {
+ __u8 multhint, multlint;
+ __u8 snrhint, snrlint;
+ __u8 rssihint, rssilint;
+ __u8 bltf;
+ __u8 snr_ready;
+ __u8 rssiready;
+ __u8 injside;
+ __u8 afcrl;
+ __u8 valid;
+
+ __u16 readfreq;
+ __s8 freqoff;
+ __s8 rssi;
+ __s8 snr;
+ __s8 issi;
+ __s8 lassi, hassi;
+ __s8 mult;
+ __u8 dev;
+ __u16 readantcap;
+ __s8 assi;
+ __s8 usn;
+
+ __u8 pilotdev;
+ __u8 rdsdev;
+ __u8 assidev;
+ __u8 strongdev;
+ __u16 rdspi;
+} __packed;
+
+/**
+ * si476x_acf_status_report - ACF report results
+ *
+ * @blend_int: If set, indicates that stereo separation has crossed
+ * below the blend threshold as set by FM_ACF_BLEND_THRESHOLD
+ * @hblend_int: If set, indicates that HiBlend cutoff frequency is
+ * lower than threshold as set by FM_ACF_HBLEND_THRESHOLD
+ * @hicut_int: If set, indicates that HiCut cutoff frequency is lower
+ * than the threshold set by ACF_
+
+ */
+struct si476x_acf_status_report {
+ __u8 blend_int;
+ __u8 hblend_int;
+ __u8 hicut_int;
+ __u8 chbw_int;
+ __u8 softmute_int;
+ __u8 smute;
+ __u8 smattn;
+ __u8 chbw;
+ __u8 hicut;
+ __u8 hiblend;
+ __u8 pilot;
+ __u8 stblend;
+} __packed;
+
+enum si476x_fmagc {
+ SI476X_FMAGC_10K_OHM = 0,
+ SI476X_FMAGC_800_OHM = 1,
+ SI476X_FMAGC_400_OHM = 2,
+ SI476X_FMAGC_200_OHM = 4,
+ SI476X_FMAGC_100_OHM = 8,
+ SI476X_FMAGC_50_OHM = 16,
+ SI476X_FMAGC_25_OHM = 32,
+ SI476X_FMAGC_12P5_OHM = 64,
+ SI476X_FMAGC_6P25_OHM = 128,
+};
+
+struct si476x_agc_status_report {
+ __u8 mxhi;
+ __u8 mxlo;
+ __u8 lnahi;
+ __u8 lnalo;
+ __u8 fmagc1;
+ __u8 fmagc2;
+ __u8 pgagain;
+ __u8 fmwblang;
+} __packed;
+
+struct si476x_rds_blockcount_report {
+ __u16 expected;
+ __u16 received;
+ __u16 uncorrectable;
+} __packed;
+
+#endif /* __SI476X_REPORTS_H__ */