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Add TEA5767 FM radio driver. From Karuna Grewal.

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This commit is contained in:
rkujawa 2018-07-27 12:02:25 +00:00
parent 78d04795a3
commit 214d4ae2ac
8 changed files with 525 additions and 7 deletions
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5
distrib/sets/lists/man/mi
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@ -1,4 +1,4 @@
# $NetBSD: mi,v 1.1601 2018/07/24 15:29:05 christos Exp $
# $NetBSD: mi,v 1.1602 2018/07/27 12:02:26 rkujawa Exp $
#
# Note: don't delete entries from here - mark them as "obsolete" instead.
#
@ -1803,6 +1803,7 @@
./usr/share/man/cat4/tcu.0 man-sys-catman .cat
./usr/share/man/cat4/tdfxdrm.0 man-sys-catman .cat
./usr/share/man/cat4/tdvfb.0 man-sys-catman .cat
./usr/share/man/cat4/tea5767radio.0 man-sys-catman .cat
./usr/share/man/cat4/termios.0 man-sys-catman .cat
./usr/share/man/cat4/tfb.0 man-sys-catman .cat
./usr/share/man/cat4/thinkpad.0 man-sys-catman .cat
@ -4875,6 +4876,7 @@
./usr/share/man/html4/tcu.html man-sys-htmlman html
./usr/share/man/html4/tdfxdrm.html man-sys-htmlman html
./usr/share/man/html4/tdvfb.html man-sys-htmlman html
./usr/share/man/html4/tea5767radio.html man-sys-htmlman html
./usr/share/man/html4/termios.html man-sys-htmlman html
./usr/share/man/html4/tfb.html man-sys-htmlman html
./usr/share/man/html4/thinkpad.html man-sys-htmlman html
@ -7867,6 +7869,7 @@
./usr/share/man/man4/tcu.4 man-sys-man .man
./usr/share/man/man4/tdfxdrm.4 man-sys-man .man
./usr/share/man/man4/tdvfb.4 man-sys-man .man
./usr/share/man/man4/tea5767radio.4 man-sys-man .man
./usr/share/man/man4/termios.4 man-sys-man .man
./usr/share/man/man4/tfb.4 man-sys-man .man
./usr/share/man/man4/thinkpad.4 man-sys-man .man

5
doc/CHANGES
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@ -1,4 +1,4 @@
# LIST OF CHANGES FROM LAST RELEASE: <$Revision: 1.2414 $>
# LIST OF CHANGES FROM LAST RELEASE: <$Revision: 1.2415 $>
#
#
# [Note: This file does not mention every change made to the NetBSD source tree.
@ -181,3 +181,6 @@ Changes from NetBSD 8.0 to NetBSD 9.0:
arm: Add support for ARMv7 performance event monitoring with tprof(4).
[jmcneill 20180715]
dhcpcd: Import 7.0.7. [roy 20180724]
tea5767radio(4): Add Philips/NXP TEA5767 I2C-controlled stereo FM radio
driver. [rkujawa 20180727]

6
share/man/man4/Makefile
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@ -1,4 +1,4 @@
# $NetBSD: Makefile,v 1.658 2018/07/15 05:16:40 maxv Exp $
# $NetBSD: Makefile,v 1.659 2018/07/27 12:02:26 rkujawa Exp $
# @(#)Makefile 8.1 (Berkeley) 6/18/93
MAN= aac.4 ac97.4 acardide.4 aceride.4 acphy.4 \
@ -61,8 +61,8 @@ MAN= aac.4 ac97.4 acardide.4 aceride.4 acphy.4 \
sm.4 smsh.4 sn.4 sony.4 spc.4 speaker.4 spif.4 sqphy.4 ss.4 \
st.4 ste.4 stge.4 sti.4 stpcide.4 sv.4 strip.4 \
svwsata.4 swsensor.4 swwdog.4 sysmon.4 \
tap.4 tc.4 tcds.4 tcp.4 tcu.4 tdvfb.4 termios.4 tfb.4 thinkpad.4 \
ti.4 tl.4 tlp.4 tlphy.4 tpm.4 tprof.4 tr.4 tra.4 \
tap.4 tc.4 tcds.4 tcp.4 tcu.4 tdvfb.4 tea5767radio.4 termios.4 tfb.4
thinkpad.4 ti.4 tl.4 tlp.4 tlphy.4 tpm.4 tprof.4 tr.4 tra.4 \
trm.4 tsllux.4 tty.4 tun.4 tqphy.4 twa.4 twe.4 txp.4 \
uark.4 ubsec.4 udp.4 uep.4 ug.4 uha.4 uk.4 ukphy.4 unix.4 userconf.4 \
vald.4 valz.4 veriexec.4 vga.4 vge.4 viaide.4 video.4 vioif.4 viomb.4 \

77
share/man/man4/tea5767radio.4 Normal file
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.\" $NetBSD: tea5767radio.4,v 1.1 2018/07/27 12:02:26 rkujawa Exp $
.\"
.\" Copyright (c) 2018 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Karuna Grewal.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd July 6, 2018
.Dt TEA5767RADIO
.Os
.Sh NAME
.Nm tea5767
.Nd Philips/NXP TEA5767 FM Chip
.Sh SYNOPSIS
.Cd "tea5767radio* at iic? addr 0x60 flags 0x00"
.Cd "radio* at tea5767radio?"
.Sh DESCRIPTION
The
.Nm
driver provides support for the Philips/NXP TEA5767 FM stereo radio.
.Pp
The
.Nm
can tune in the range 87.5 \- 108.0 MHz, perform hardware signal search
and supports mono/stereo toggling.
.Pp
The flags control the FM Band, XTAL and PLL values as follows:
.Bl -tag -width Ds
.It 0x01
sets the FM Band to Japan.
.It 0x02
sets the PLL bit.
.It 0x04
sets the XTAL bit.
.It 0x08
force enables hardware search support.
.Sh SEE ALSO
.Xr iic 4 ,
.Xr radio 4 ,
.Xr radio 9 ,
.Rs
.%A TEA5767
.%T Low-power FM stereo radio
.%N Rev. 05
.%D 26 January 2007
.Re
.Sh CAVEATS
Many popular TEA5767 evaluation boards feature low quality 32.768kHz crystals.
The inaccuracy of these crystals may often lead to malfunction of the hardware
search funciton.
Therefore, the
.Nm
driver tries to detect the crystal quality during attachment. If the crystal
of insufficient accuracy was detected, hardware search function is disabled.
It can be forcefully re-enabled by setting the 0x08 flag.

3
sys/dev/DEVNAMES
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@ -1,4 +1,4 @@
# $NetBSD: DEVNAMES,v 1.311 2018/06/05 08:03:29 hkenken Exp $
# $NetBSD: DEVNAMES,v 1.312 2018/07/27 12:02:26 rkujawa Exp $
#
# This file contains all used device names and defined attributes in
# alphabetical order. New devices added to the system somewhere should first
@ -1325,6 +1325,7 @@ tcx sparc64
tdvfb MI
te vax
tea5757 MI
tea5767radio MI
tfb MI
tga MI
ti MI

8
sys/dev/i2c/files.i2c
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@ -1,4 +1,4 @@
# $NetBSD: files.i2c,v 1.93 2018/06/26 06:34:55 thorpej Exp $
# $NetBSD: files.i2c,v 1.94 2018/07/27 12:02:26 rkujawa Exp $
obsolete defflag opt_i2cbus.h I2C_SCAN
define i2cbus { }
@ -339,3 +339,9 @@ file dev/i2c/imt.c imt
device tsllux: sysmon_envsys
attach tsllux at iic
file dev/i2c/tsl256x.c tsllux
# Philips/NXP TEA5767
device tea5767radio : radiodev
attach tea5767radio at iic
file dev/i2c/tea5767.c tea5767radio

349
sys/dev/i2c/tea5767.c Normal file
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@ -0,0 +1,349 @@
/* $NetBSD: tea5767.c,v 1.1 2018/07/27 12:02:26 rkujawa Exp $ */
/*-
* Copyright (c) 2018 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Karuna Grewal.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: tea5767.c,v 1.1 2018/07/27 12:02:26 rkujawa Exp $");
#include <sys/proc.h>
#include <sys/kernel.h>
#include <sys/param.h>
#include <sys/device.h>
#include <sys/errno.h>
#include <sys/systm.h>
#include <dev/i2c/i2cvar.h>
#include <sys/ioctl.h>
#include <sys/radioio.h>
#include <dev/radio_if.h>
#include "tea5767reg.h"
struct tea5767_tune {
int mute;
uint32_t freq;
int stereo;
bool is_pll_set;
bool is_xtal_set;
bool is_force_srch;
int fm_band; /* Set = JAPAN. */
int lock;
int adc_stop_level;
};
struct tea5767_softc {
device_t sc_dev;
/* Tunable properties. */
struct tea5767_tune tune;
/* I2C bus controller. */
i2c_tag_t sc_i2c_tag;
/* Device addr on I2C. */
i2c_addr_t sc_addr;
/* Device capabilities. */
uint32_t caps;
};
static int tea5767_get_info(void *, struct radio_info *);
static int tea5767_set_info(void *, struct radio_info *);
static int tea5767_search(void *, int);
static int tea5767_match(device_t, cfdata_t, void *);
static void tea5767_attach(device_t, device_t, void *);
static const struct radio_hw_if tea5767_hw_if = {
NULL,
NULL,
tea5767_get_info,
tea5767_set_info,
tea5767_search
};
static const uint32_t tea5767_common_caps =
RADIO_CAPS_DETECT_STEREO |
RADIO_CAPS_SET_MONO |
RADIO_CAPS_HW_SEARCH |
RADIO_CAPS_LOCK_SENSITIVITY;
CFATTACH_DECL_NEW(tea5767radio, sizeof(struct tea5767_softc), tea5767_match,
tea5767_attach, NULL, NULL);
static int
tea5767_match(device_t parent, cfdata_t cf, void *aux)
{
struct i2c_attach_args *ia = aux;
if (ia->ia_addr == TEA5767_ADDR)
return I2C_MATCH_ADDRESS_ONLY;
return 0;
}
static void
tea5767_attach(device_t parent, device_t self, void *aux)
{
struct tea5767_softc *sc = device_private(self);
int tea5767_flags = device_cfdata(self)->cf_flags;
struct i2c_attach_args *ia = aux;
aprint_normal(": Philips/NXP TEA5767 Radio\n");
aprint_naive(": FM radio\n");
sc->sc_dev = self;
sc->tune.mute = 0;
sc->tune.freq = MIN_FM_FREQ;
sc->tune.stereo = 1;
sc->tune.is_pll_set = false;
sc->tune.is_xtal_set = false;
sc->tune.is_force_srch = false;
sc->sc_i2c_tag = ia->ia_tag;
sc->sc_addr = ia->ia_addr;
if (tea5767_flags & TEA5767_PLL_FLAG)
sc->tune.is_pll_set = true;
if (tea5767_flags & TEA5767_XTAL_FLAG)
sc->tune.is_xtal_set = true;
if (tea5767_flags & TEA5767_JAPAN_FM_FLAG)
sc->tune.fm_band = 1;
if (tea5767_flags & TEA5767_FORCE_SRCH_FLAG)
sc->tune.is_force_srch = true;
sc->caps = tea5767_common_caps;
/*
* Check the quality of crystal and disable hardware search if
* necessary.
*/
if (!tea5767_if_check(sc) && !(sc->tune.is_force_srch))
sc->caps &= ~RADIO_CAPS_HW_SEARCH;
radio_attach_mi(&tea5767_hw_if, sc, self);
}
static int
tea5767_write(struct tea5767_softc *sc, uint8_t *reg)
{
int exec_result;
if (iic_acquire_bus(sc->sc_i2c_tag, I2C_F_POLL)) {
device_printf(sc->sc_dev, "bus acquiration failed.\n");
return 1;
}
exec_result = iic_exec(sc->sc_i2c_tag, I2C_OP_WRITE_WITH_STOP,
sc->sc_addr, NULL, 0, reg, 5, I2C_F_POLL);
if (exec_result) {
iic_release_bus(sc->sc_i2c_tag, I2C_F_POLL);
device_printf(sc->sc_dev, "write operation failed %d.\n",
exec_result);
return 1;
}
iic_release_bus(sc->sc_i2c_tag, I2C_F_POLL);
return 0;
}
static int
tea5767_read(struct tea5767_softc *sc, uint8_t *reg)
{
int exec_result;
if (iic_acquire_bus(sc->sc_i2c_tag, I2C_F_POLL)) {
device_printf(sc->sc_dev, "bus acquiration failed.\n");
return 1;
}
iic_exec(sc->sc_i2c_tag, I2C_OP_READ_WITH_STOP, sc->sc_addr,
NULL, 0, reg, 5, I2C_F_POLL);
if (exec_result) {
iic_release_bus(sc->sc_i2c_tag, I2C_F_POLL);
device_printf(sc->sc_dev, "read operation failed.\n");
return 1;
}
iic_release_bus(sc->sc_i2c_tag, I2C_F_POLL);
return 0;
}
/*
* Calculate the PLL word.
* TODO: Extend this calculation to do high side injection as well
* (add fields to tea5767_tune).
*/
static void
tea5767_freq_to_pll(struct tea5767_tune tune, uint8_t *buf)
{
uint16_t pll_word = 0;
if (!tune.is_pll_set && !tune.is_xtal_set)
pll_word = 4 * (tune.freq - 225) * 1000 / 50000;
else if (!tune.is_pll_set && tune.is_xtal_set) {
pll_word = 4 * (tune.freq - 225) * 1000 / 32768;
buf[3] = TEA5767_XTAL;
}
else {
pll_word = 4 * (tune.freq - 225) * 1000 / 50000;
buf[4] |= TEA5767_PLLREF;
}
buf[1] = pll_word & 0xff;
buf[0] = (pll_word>>8) & 0x3f;
}
static void
tea5767_set_properties(struct tea5767_softc *sc, uint8_t *reg)
{
memset(reg,0,5);
tea5767_freq_to_pll(sc->tune, reg);
if (sc->tune.mute) {
reg[0] |= TEA5767_MUTE;
reg[2] |=TEA5767_MUTE_R | TEA5767_MUTE_L;
}
reg[3] |= TEA5767_SNC;
if (sc->tune.stereo == 0)
reg[2] |= TEA5767_MONO;
if(sc->tune.fm_band)
reg[3] |= TEA5767_FM_BAND;
}
static bool
tea5767_if_check(struct tea5767_soft *sc)
{
uint8_t reg[5];
tea5767_set_properties(sc, reg);
tea5767_write(sc, reg);
memset(reg,0,5);
delay(1000);
tea5767_read(sc,reg);
if ((reg[2] & 0x7f) == 0x37)
return true;
return false;
}
static void
tea5767_pll_to_freq(struct tea5767_tune *tune, uint8_t *buf)
{
int pll_word = buf[1] | (buf[0] & 0x3f) << 8;
if (!tune->is_pll_set && !tune->is_xtal_set)
tune->freq = pll_word * 50 / 4 + 225;
else if (!tune->is_pll_set && tune->is_xtal_set)
tune->freq = pll_word * 32768 / 4000 + 225;
else
tune->freq = pll_word * 50 / 4 + 225;
}
static int
tea5767_get_info(void *v, struct radio_info *ri)
{
struct tea5767_softc *sc = v;
uint8_t reg[5];
tea5767_read(sc, reg);
tea5767_pll_to_freq(&sc->tune, reg);
ri->mute = sc->tune.mute;
ri->stereo = sc->tune.stereo;
ri->freq = sc->tune.freq;
ri->lock = sc->tune.lock;
ri->caps = sc->caps;
return 0;
}
static int
tea5767_set_info(void *v, struct radio_info *ri)
{
struct tea5767_softc *sc = v;
int adc_conversion;
uint8_t reg[5];
sc->tune.mute = ri->mute;
sc->tune.stereo = ri->stereo;
sc->tune.freq = ri->freq;
sc->tune.lock = ri->lock;
adc_conversion = (ri->lock-60) * 3 / 30;
switch(adc_conversion) {
case 0: sc->tune.adc_stop_level = TEA5767_SSL_3;
break;
case 1: sc->tune.adc_stop_level = TEA5767_SSL_2;
break;
case 2: sc->tune.adc_stop_level = TEA5767_SSL_1;
break;
}
tea5767_set_properties(sc, reg);
tea5767_write(sc, reg);
return 0;
}
static int
tea5767_search(void *v, int dir)
{
struct tea5767_softc *sc = v;
uint8_t reg[5];
/* Increment frequency to search for the next frequency. */
sc->tune.freq = sc->tune.freq >= 107500 ? 87500 : sc->tune.freq + 100;
tea5767_set_properties(sc, reg);
/* Activate autonomous search. */
reg[0] |= TEA5767_SEARCH;
/*
* If dir 1 => search up, if dir 0 => search down.
*/
if (dir)
reg[2] |= TEA5767_SUD;
reg[2] |= sc->tune.adc_stop_level; /* Stop level for search. */
tea5767_write(sc, reg);
memset(reg, 0, 5);
while (tea5767_read(sc, reg), !(reg[0] & TEA5767_READY_FLAG)) {
kpause("teasrch", true, hz/100, NULL);
}
return 0;
}

79
sys/dev/i2c/tea5767reg.h Normal file
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@ -0,0 +1,79 @@
/* $NetBSD: tea5767reg.h,v 1.1 2018/07/27 12:02:26 rkujawa Exp $ */
/*-
* Copyright (c) 2018 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Karuna Grewal.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __TEA5767REG_H__
#define __TEA5767REG_H__
/* TEA5767 ADDR */
#define TEA5767_ADDR 0x60
/* 1st byte */
#define TEA5767_MUTE 0x80 /* Set Mute */
#define TEA5767_SEARCH 0x40 /* Activate search Mode */
/* 3rd byte */
#define TEA5767_SUD 0x80 /* Search Up */
#define TEA5767_SSL_1 0x60 /* ADC o/p = 10 */
#define TEA5767_SSL_2 0x40 /* ADC o/p = 7 */
#define TEA5767_SSL_3 0x20 /* ADC o/p = 5 */
#define TEA5767_MONO 0x08 /* Force Mono */
#define TEA5767_MUTE_R 0x04 /* Mute Right */
#define TEA5767_MUTE_L 0x02 /* Mute Left */
/* 4th byte */
#define TEA5767_STANDBY 0x40
#define TEA5767_FM_BAND 0x20 /* Set Japanese FM Band */
#define TEA5767_XTAL 0x10
#define TEA5767_SMUTE 0x08
#define TEA5767_SNC 0x02 /* Stereo Noise Cancelling */
#define TEA5767_SEARCH_IND 0x01
/* 5th byte */
#define TEA5767_PLLREF 0x80 /* If enabled TEA5767_CLK_FREQ : 6.5MHZ*/
/* Read Mode MASKS*/
/* 1st byte */
#define TEA5767_READY_FLAG 0x80
#define TEA5767_BAND_LIMIT 0X40
/* 3rd byte */
#define TEA5767_STEREO 0x80
#define TEA5767_IF_COUNTER 0x7f
/* 4th byte */
#define TEA5767_ADC_LEVEL 0xf0
/* Kernel Config Maps */
#define TEA5767_JAPAN_FM_FLAG 0x01
#define TEA5767_PLL_FLAG 0x02
#define TEA5767_XTAL_FLAG 0x04
#define TEA5767_FORCE_SRCH_FLAG 0x08
#endif