From 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 02:46:07 +0000
Subject: [PATCH] add audio
---
kernel/sound/arm/aaci.c | 55 +++++++++++++++++++------------------------------------
1 files changed, 19 insertions(+), 36 deletions(-)
diff --git a/kernel/sound/arm/aaci.c b/kernel/sound/arm/aaci.c
index 0114ffe..b326a5f 100644
--- a/kernel/sound/arm/aaci.c
+++ b/kernel/sound/arm/aaci.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/sound/arm/aaci.c - ARM PrimeCell AACI PL041 driver
*
* Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*
* Documentation: ARM DDI 0173B
*/
@@ -383,7 +380,7 @@
static int aaci_rule_channels(struct snd_pcm_hw_params *p,
struct snd_pcm_hw_rule *rule)
{
- static unsigned int channel_list[] = { 2, 4, 6 };
+ static const unsigned int channel_list[] = { 2, 4, 6 };
struct aaci *aaci = rule->private;
unsigned int mask = 1 << 0, slots;
@@ -486,11 +483,6 @@
snd_ac97_pcm_close(aacirun->pcm);
aacirun->pcm_open = 0;
- /*
- * Clear out the DMA and any allocated buffers.
- */
- snd_pcm_lib_free_pages(substream);
-
return 0;
}
@@ -505,6 +497,7 @@
struct snd_pcm_hw_params *params)
{
struct aaci_runtime *aacirun = substream->runtime->private_data;
+ struct aaci *aaci = substream->private_data;
unsigned int channels = params_channels(params);
unsigned int rate = params_rate(params);
int dbl = rate > 48000;
@@ -520,25 +513,19 @@
if (dbl && channels != 2)
return -EINVAL;
- err = snd_pcm_lib_malloc_pages(substream,
- params_buffer_bytes(params));
- if (err >= 0) {
- struct aaci *aaci = substream->private_data;
+ err = snd_ac97_pcm_open(aacirun->pcm, rate, channels,
+ aacirun->pcm->r[dbl].slots);
- err = snd_ac97_pcm_open(aacirun->pcm, rate, channels,
- aacirun->pcm->r[dbl].slots);
+ aacirun->pcm_open = err == 0;
+ aacirun->cr = CR_FEN | CR_COMPACT | CR_SZ16;
+ aacirun->cr |= channels_to_slotmask[channels + dbl * 2];
- aacirun->pcm_open = err == 0;
- aacirun->cr = CR_FEN | CR_COMPACT | CR_SZ16;
- aacirun->cr |= channels_to_slotmask[channels + dbl * 2];
-
- /*
- * fifo_bytes is the number of bytes we transfer to/from
- * the FIFO, including padding. So that's x4. As we're
- * in compact mode, the FIFO is half the size.
- */
- aacirun->fifo_bytes = aaci->fifo_depth * 4 / 2;
- }
+ /*
+ * fifo_bytes is the number of bytes we transfer to/from
+ * the FIFO, including padding. So that's x4. As we're
+ * in compact mode, the FIFO is half the size.
+ */
+ aacirun->fifo_bytes = aaci->fifo_depth * 4 / 2;
return err;
}
@@ -638,7 +625,6 @@
static const struct snd_pcm_ops aaci_playback_ops = {
.open = aaci_pcm_open,
.close = aaci_pcm_close,
- .ioctl = snd_pcm_lib_ioctl,
.hw_params = aaci_pcm_hw_params,
.hw_free = aaci_pcm_hw_free,
.prepare = aaci_pcm_prepare,
@@ -741,7 +727,6 @@
static const struct snd_pcm_ops aaci_capture_ops = {
.open = aaci_pcm_open,
.close = aaci_pcm_close,
- .ioctl = snd_pcm_lib_ioctl,
.hw_params = aaci_pcm_hw_params,
.hw_free = aaci_pcm_hw_free,
.prepare = aaci_pcm_capture_prepare,
@@ -757,7 +742,6 @@
{
struct aaci *aaci = card->private_data;
snd_power_change_state(card, SNDRV_CTL_POWER_D3cold);
- snd_pcm_suspend_all(aaci->pcm);
return 0;
}
@@ -827,7 +811,7 @@
}
};
-static struct snd_ac97_bus_ops aaci_bus_ops = {
+static const struct snd_ac97_bus_ops aaci_bus_ops = {
.write = aaci_ac97_write,
.read = aaci_ac97_read,
};
@@ -941,8 +925,9 @@
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &aaci_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &aaci_capture_ops);
- snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
- NULL, 0, 64 * 1024);
+ snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+ aaci->card->dev,
+ 0, 64 * 1024);
}
return ret;
@@ -1070,7 +1055,7 @@
return ret;
}
-static int aaci_remove(struct amba_device *dev)
+static void aaci_remove(struct amba_device *dev)
{
struct snd_card *card = amba_get_drvdata(dev);
@@ -1081,8 +1066,6 @@
snd_card_free(card);
amba_release_regions(dev);
}
-
- return 0;
}
static struct amba_id aaci_ids[] = {
--
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