patch-1.3.9 linux/drivers/sound/ad1848_mixer.h

• Lines: 131
• Date: Mon Jun 12 12:48:59 1995
• Orig file: v1.3.8/linux/drivers/sound/ad1848_mixer.h
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v1.3.8/linux/drivers/sound/ad1848_mixer.h linux/drivers/sound/ad1848_mixer.h
@@ -0,0 +1,130 @@
+/*
+ * sound/ad1848_mixer.h
+ * 
+ * Definitions for the mixer of AD1848 and compatible codecs.
+ * 
+ * Copyright by Hannu Savolainen 1994
+ * 
+ * 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 AUTHOR 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 AUTHOR 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.
+ */
+/*
+ * The AD1848 codec has generic input lines called Line, Aux1 and Aux2.
+ * Soundcard manufacturers have connected actual inputs (CD, synth, line,
+ * etc) to these inputs in different order. Therefore it's difficult
+ * to assign mixer channels to to these inputs correctly. The following
+ * contains two alternative mappings. The first one is for GUS MAX and
+ * the second is just a generic one (line1, line2 and line3).
+ * (Actually this is not a mapping but rather some kind of interleaving
+ * solution).
+ */
+#ifdef GUSMAX_MIXER
+#define MODE1_REC_DEVICES		(SOUND_MASK_LINE | SOUND_MASK_MIC | \
+					 SOUND_MASK_CD)
+
+#define MODE1_MIXER_DEVICES		(SOUND_MASK_SYNTH | SOUND_MASK_MIC | \
+					 SOUND_MASK_CD | \
+					 SOUND_MASK_IGAIN | \
+					 SOUND_MASK_PCM|SOUND_MASK_IMIX)
+
+#define MODE2_MIXER_DEVICES		(SOUND_MASK_SYNTH | SOUND_MASK_LINE | SOUND_MASK_MIC | \
+					 SOUND_MASK_CD | SOUND_MASK_SPEAKER | \
+					 SOUND_MASK_IGAIN | \
+					 SOUND_MASK_PCM | SOUND_MASK_IMIX)
+#else	/* Generic mapping */
+#define MODE1_REC_DEVICES		(SOUND_MASK_LINE3 | SOUND_MASK_MIC | \
+					 SOUND_MASK_LINE1)
+
+#define MODE1_MIXER_DEVICES		(SOUND_MASK_LINE1 | SOUND_MASK_MIC | \
+					 SOUND_MASK_LINE2 | \
+					 SOUND_MASK_IGAIN | \
+					 SOUND_MASK_PCM | SOUND_MASK_IMIX)
+
+#define MODE2_MIXER_DEVICES		(SOUND_MASK_LINE1 | SOUND_MASK_LINE2 | SOUND_MASK_MIC | \
+					 SOUND_MASK_LINE3 | SOUND_MASK_SPEAKER | \
+					 SOUND_MASK_IGAIN | \
+					 SOUND_MASK_PCM | SOUND_MASK_IMIX)
+#endif
+
+struct mixer_def {
+	unsigned int regno: 7;
+	unsigned int polarity:1;	/* 0=normal, 1=reversed */
+	unsigned int bitpos:4;
+	unsigned int nbits:4;
+};
+
+
+typedef struct mixer_def mixer_ent;
+
+/*
+ * Most of the mixer entries work in backwards. Setting the polarity field
+ * makes them to work correctly.
+ *
+ * The channel numbering used by individual soundcards is not fixed. Some
+ * cards have assigned different meanings for the AUX1, AUX2 and LINE inputs.
+ * The current version doesn't try to compensate this.
+ */
+
+#define MIX_ENT(name, reg_l, pola_l, pos_l, len_l, reg_r, pola_r, pos_r, len_r)	\
+	{{reg_l, pola_l, pos_r, len_l}, {reg_r, pola_r, pos_r, len_r}}
+
+mixer_ent mix_devices[32][2] = {	/* As used in GUS MAX */
+MIX_ENT(SOUND_MIXER_VOLUME,	 0, 0, 0, 0,	 0, 0, 0, 0),
+MIX_ENT(SOUND_MIXER_BASS,	 0, 0, 0, 0,	 0, 0, 0, 0),
+MIX_ENT(SOUND_MIXER_TREBLE,	 0, 0, 0, 0,	 0, 0, 0, 0),
+MIX_ENT(SOUND_MIXER_SYNTH,	 4, 1, 0, 5,	 5, 1, 0, 5),
+MIX_ENT(SOUND_MIXER_PCM,	 6, 1, 0, 6,	 7, 1, 0, 6),
+MIX_ENT(SOUND_MIXER_SPEAKER,	26, 1, 0, 4,	 0, 0, 0, 0),
+MIX_ENT(SOUND_MIXER_LINE,	18, 1, 0, 5,	19, 1, 0, 5),
+MIX_ENT(SOUND_MIXER_MIC,	 0, 0, 5, 1,	 1, 0, 5, 1),
+MIX_ENT(SOUND_MIXER_CD,	 	 2, 1, 0, 5,	 3, 1, 0, 5),
+MIX_ENT(SOUND_MIXER_IMIX,	13, 1, 2, 6,	 0, 0, 0, 0),
+MIX_ENT(SOUND_MIXER_ALTPCM,	 0, 0, 0, 0,	 0, 0, 0, 0),
+MIX_ENT(SOUND_MIXER_RECLEV,	 0, 0, 0, 0,	 0, 0, 0, 0),
+MIX_ENT(SOUND_MIXER_IGAIN,	 0, 0, 0, 4,	 1, 0, 0, 4),
+MIX_ENT(SOUND_MIXER_OGAIN,	 0, 0, 0, 0,	 0, 0, 0, 0),
+MIX_ENT(SOUND_MIXER_LINE1, 	 2, 1, 0, 5,	 3, 1, 0, 5),
+MIX_ENT(SOUND_MIXER_LINE2,	 4, 1, 0, 5,	 5, 1, 0, 5),
+MIX_ENT(SOUND_MIXER_LINE3,	18, 1, 0, 5,	19, 1, 0, 5)
+};
+
+static unsigned short default_mixer_levels[SOUND_MIXER_NRDEVICES] =
+{
+  0x5a5a,			/* Master Volume */
+  0x3232,			/* Bass */
+  0x3232,			/* Treble */
+  0x4b4b,			/* FM */
+  0x6464,			/* PCM */
+  0x4b4b,			/* PC Speaker */
+  0x4b4b,			/* Ext Line */
+  0x1010,			/* Mic */
+  0x4b4b,			/* CD */
+  0x0000,			/* Recording monitor */
+  0x4b4b,			/* SB PCM */
+  0x4b4b,			/* Recording level */
+  0x4b4b,			/* Input gain */
+  0x4b4b,			/* Output gain */
+  0x4b4b,			/* Line1 */
+  0x4b4b,			/* Line2 */
+  0x4b4b			/* Line3 */
+};
+
+#define LEFT_CHN	0
+#define RIGHT_CHN	1