修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/sound/isa/ad1816a/ad1816a_lib.c
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@@ -1,20 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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     ad1816a.c - lowlevel code for Analog Devices AD1816A chip.
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     Copyright (C) 1999-2000 by Massimo Piccioni <dafastidio@libero.it>
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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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 #include <linux/delay.h>
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@@ -216,17 +204,6 @@
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 	struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
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 	return snd_ad1816a_trigger(chip, AD1816A_CAPTURE_ENABLE,
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 				   SNDRV_PCM_STREAM_CAPTURE, cmd, 1);
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-}
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-
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-static int snd_ad1816a_hw_params(struct snd_pcm_substream *substream,
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-				 struct snd_pcm_hw_params *hw_params)
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-{
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-	return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
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-}
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-
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-static int snd_ad1816a_hw_free(struct snd_pcm_substream *substream)
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-{
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-	return snd_pcm_lib_free_pages(substream);
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 }
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 static int snd_ad1816a_playback_prepare(struct snd_pcm_substream *substream)
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@@ -432,7 +409,7 @@
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 	return 0;
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 }
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-static struct snd_timer_hardware snd_ad1816a_timer_table = {
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+static const struct snd_timer_hardware snd_ad1816a_timer_table = {
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 	.flags =	SNDRV_TIMER_HW_AUTO,
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 	.resolution =	10000,
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 	.ticks =	65535,
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@@ -518,7 +495,6 @@
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 	int reg;
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 	unsigned long flags;
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-	snd_pcm_suspend_all(chip->pcm);
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 	spin_lock_irqsave(&chip->lock, flags);
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 	for (reg = 0; reg < 48; reg++)
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 		chip->image[reg] = snd_ad1816a_read(chip, reg);
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@@ -601,7 +577,7 @@
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 		       unsigned long port, int irq, int dma1, int dma2,
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 		       struct snd_ad1816a *chip)
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 {
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-        static struct snd_device_ops ops = {
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+	static const struct snd_device_ops ops = {
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 		.dev_free =	snd_ad1816a_dev_free,
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 	};
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 	int error;
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@@ -621,6 +597,7 @@
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 		return -EBUSY;
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 	}
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 	chip->irq = irq;
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+	card->sync_irq = chip->irq;
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 	if (request_dma(dma1, "AD1816A - 1")) {
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 		snd_printk(KERN_ERR "ad1816a: can't grab DMA1 %d\n", dma1);
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 		snd_ad1816a_free(chip);
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@@ -657,9 +634,6 @@
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 static const struct snd_pcm_ops snd_ad1816a_playback_ops = {
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 	.open =		snd_ad1816a_playback_open,
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 	.close =	snd_ad1816a_playback_close,
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-	.ioctl =	snd_pcm_lib_ioctl,
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-	.hw_params =	snd_ad1816a_hw_params,
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-	.hw_free =	snd_ad1816a_hw_free,
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 	.prepare =	snd_ad1816a_playback_prepare,
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 	.trigger =	snd_ad1816a_playback_trigger,
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 	.pointer =	snd_ad1816a_playback_pointer,
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@@ -668,9 +642,6 @@
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 static const struct snd_pcm_ops snd_ad1816a_capture_ops = {
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 	.open =		snd_ad1816a_capture_open,
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 	.close =	snd_ad1816a_capture_close,
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-	.ioctl =	snd_pcm_lib_ioctl,
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-	.hw_params =	snd_ad1816a_hw_params,
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-	.hw_free =	snd_ad1816a_hw_free,
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 	.prepare =	snd_ad1816a_capture_prepare,
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 	.trigger =	snd_ad1816a_capture_trigger,
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 	.pointer =	snd_ad1816a_capture_pointer,
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@@ -693,9 +664,8 @@
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 	strcpy(pcm->name, snd_ad1816a_chip_id(chip));
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 	snd_ad1816a_init(chip);
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-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
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-					      snd_dma_isa_data(),
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-					      64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
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+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, chip->card->dev,
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+				       64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
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 	chip->pcm = pcm;
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 	return 0;
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@@ -914,7 +884,7 @@
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 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
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 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
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-static struct snd_kcontrol_new snd_ad1816a_controls[] = {
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+static const struct snd_kcontrol_new snd_ad1816a_controls[] = {
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 AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1),
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 AD1816A_DOUBLE_TLV("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1,
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 		   db_scale_5bit),