修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/sound/drivers/opl3/opl3_midi.c
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@@ -1,22 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  *  Copyright (c) by Uros Bizjak <uros@kss-loka.si>
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  *
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  *  Midi synth routines for OPL2/OPL3/OPL4 FM
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- *
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- *   This program is free software; you can redistribute it and/or modify
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- *   it under the terms of the GNU General Public License as published by
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- *   the Free Software Foundation; either version 2 of the License, or
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- *   (at your option) any later version.
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- *
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- *   This program is distributed in the hope that it will be useful,
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- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
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- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- *   GNU General Public License for more details.
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- *
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- *   You should have received a copy of the GNU General Public License
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- *   along with this program; if not, write to the Free Software
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- *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
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- *
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  */
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 #undef DEBUG_ALLOC
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@@ -37,7 +23,7 @@
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  * it saves a lot of log() calculations. (Rob Hooft <hooft@chem.ruu.nl>)
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  */
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-static char opl3_volume_table[128] =
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+static const char opl3_volume_table[128] =
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 {
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 	-63, -48, -40, -35, -32, -29, -27, -26,
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 	-24, -23, -21, -20, -19, -18, -18, -17,
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@@ -83,7 +69,7 @@
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 /*
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  * Converts the note frequency to block and fnum values for the FM chip
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  */
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-static short opl3_note_table[16] =
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+static const short opl3_note_table[16] =
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 {
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 	305, 323,	/* for pitch bending, -2 semitones */
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 	343, 363, 385, 408, 432, 458, 485, 514, 544, 577, 611, 647,
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@@ -280,7 +266,7 @@
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 /* ------------------------------ */
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-static int snd_opl3_oss_map[MAX_OPL3_VOICES] = {
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+static const int snd_opl3_oss_map[MAX_OPL3_VOICES] = {
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 	0, 1, 2, 9, 10, 11, 6, 7, 8, 15, 16, 17, 3, 4 ,5, 12, 13, 14
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 };
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@@ -368,7 +354,7 @@
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 			instr_4op = 1;
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 			break;
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 		}
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-		/* fall through */
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+		fallthrough;
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 	default:
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 		spin_unlock_irqrestore(&opl3->voice_lock, flags);
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 		return;
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@@ -457,7 +443,7 @@
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 		switch (connection) {
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 		case 0x03:
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 			snd_opl3_calc_volume(&vol_op[2], vel, chan);
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-			/* fallthru */
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+			fallthrough;
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 		case 0x02:
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 			snd_opl3_calc_volume(&vol_op[0], vel, chan);
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 			break;