Split the Bt848 driver into seperate files for

audio, tuner, card make, os dependent code and core bt848/i2c code.

Also, rewrite tuner code for FM Radio to make the code cleaner.

1 files changed, 103 insertions, 0 deletions

diff --git a/sys/dev/bktr/bktr_tuner.h b/sys/dev/bktr/bktr_tuner.h
new file mode 100644
index 0000000..d7a67c0
--- /dev/null
+++ b/sys/dev/bktr/bktr_tuner.h
@@ -0,0 +1,103 @@
+/* $FreeBSD$ */
+
+/*
+ * This is part of the Driver for Video Capture Cards (Frame grabbers)
+ * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
+ * chipset.
+ * Copyright Roger Hardiman and Amancio Hasty.
+ * 
+ * bktr_tuner : This deals with controlling the tuner fitted to TV cards.
+ *
+ */
+
+/*
+ * 1. Redistributions of source code must retain the
+ * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
+ * All rights reserved.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Amancio Hasty and
+ *      Roger Hardiman
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+/* Definitions for Tuners */
+
+#define NO_TUNER                0
+#define TEMIC_NTSC              1
+#define TEMIC_PAL               2
+#define TEMIC_SECAM             3
+#define PHILIPS_NTSC            4
+#define PHILIPS_PAL             5
+#define PHILIPS_SECAM           6
+#define TEMIC_PALI              7
+#define PHILIPS_PALI            8
+#define PHILIPS_FR1236_NTSC     9    /* These have FM radio support */
+#define PHILIPS_FR1216_PAL      10   /* These have FM radio support */
+#define PHILIPS_FR1236_SECAM    11   /* These have FM radio support */
+#define ALPS_TSCH5              12
+#define ALPS_TSBH1              13
+#define Bt848_MAX_TUNER         14
+
+/* experimental code for Automatic Frequency Control */ 
+#define TUNER_AFC
+
+/*
+ * Fill in the tuner entries in the bktr_softc based on the selected tuner
+ * type (from the list of tuners above)
+ */
+void	select_tuner( bktr_ptr_t bktr, int tuner_type );
+
+
+/*
+ * The Channel Set maps TV channels eg Ch 36, Ch 51, onto frequencies
+ * and is country specific.
+ */
+int	tuner_getchnlset( struct bktr_chnlset *chnlset );
+
+/*
+ * tv_channel sets the tuner to channel 'n' using the current Channel Set
+ * tv_freq sets the tuner to a specific frequency for TV or for FM Radio
+ * get_tuner_status can be used to get the signal strength.
+ */
+#define TV_FREQUENCY       0
+#define FM_RADIO_FREQUENCY 1
+int	tv_channel( bktr_ptr_t bktr, int channel );
+int	tv_freq( bktr_ptr_t bktr, int frequency, int type );
+int	get_tuner_status( bktr_ptr_t bktr );
+
+#if defined( TUNER_AFC )
+int	do_afc( bktr_ptr_t bktr, int addr, int frequency );
+#endif /* TUNER_AFC */
+
+
+/* 
+ * This is for start-up convenience only, NOT mandatory.
+ */
+#if !defined( DEFAULT_CHNLSET )
+#define DEFAULT_CHNLSET CHNLSET_WEUROPE
+#endif
+
+