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/atmel/ac97c.c | 73 +++++++++++++-----------------------
1 files changed, 26 insertions(+), 47 deletions(-)
diff --git a/kernel/sound/atmel/ac97c.c b/kernel/sound/atmel/ac97c.c
index 3800258..66ecbd4 100644
--- a/kernel/sound/atmel/ac97c.c
+++ b/kernel/sound/atmel/ac97c.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Driver for Atmel AC97C
*
* Copyright (C) 2005-2009 Atmel Corporation
- *
- * 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.
*/
#include <linux/clk.h>
#include <linux/delay.h>
@@ -162,12 +159,6 @@
struct snd_pcm_hw_params *hw_params)
{
struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
- int retval;
-
- retval = snd_pcm_lib_malloc_pages(substream,
- params_buffer_bytes(hw_params));
- if (retval < 0)
- return retval;
/* Set restrictions to params. */
mutex_lock(&opened_mutex);
@@ -175,19 +166,13 @@
chip->cur_format = params_format(hw_params);
mutex_unlock(&opened_mutex);
- return retval;
+ return 0;
}
static int atmel_ac97c_capture_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
- int retval;
-
- retval = snd_pcm_lib_malloc_pages(substream,
- params_buffer_bytes(hw_params));
- if (retval < 0)
- return retval;
/* Set restrictions to params. */
mutex_lock(&opened_mutex);
@@ -195,7 +180,7 @@
chip->cur_format = params_format(hw_params);
mutex_unlock(&opened_mutex);
- return retval;
+ return 0;
}
static int atmel_ac97c_playback_prepare(struct snd_pcm_substream *substream)
@@ -234,7 +219,7 @@
switch (runtime->format) {
case SNDRV_PCM_FORMAT_S16_LE:
break;
- case SNDRV_PCM_FORMAT_S16_BE: /* fall through */
+ case SNDRV_PCM_FORMAT_S16_BE:
word &= ~(AC97C_CMR_CEM_LITTLE);
break;
default:
@@ -316,7 +301,7 @@
switch (runtime->format) {
case SNDRV_PCM_FORMAT_S16_LE:
break;
- case SNDRV_PCM_FORMAT_S16_BE: /* fall through */
+ case SNDRV_PCM_FORMAT_S16_BE:
word &= ~(AC97C_CMR_CEM_LITTLE);
break;
default:
@@ -371,14 +356,14 @@
camr = ac97c_readl(chip, CAMR);
switch (cmd) {
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: /* fall through */
- case SNDRV_PCM_TRIGGER_RESUME: /* fall through */
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_START:
ptcr = ATMEL_PDC_TXTEN;
camr |= AC97C_CMR_CENA | AC97C_CSR_ENDTX;
break;
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH: /* fall through */
- case SNDRV_PCM_TRIGGER_SUSPEND: /* fall through */
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_STOP:
ptcr |= ATMEL_PDC_TXTDIS;
if (chip->opened <= 1)
@@ -403,14 +388,14 @@
ptcr = readl(chip->regs + ATMEL_PDC_PTSR);
switch (cmd) {
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: /* fall through */
- case SNDRV_PCM_TRIGGER_RESUME: /* fall through */
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_START:
ptcr = ATMEL_PDC_RXTEN;
camr |= AC97C_CMR_CENA | AC97C_CSR_ENDRX;
break;
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH: /* fall through */
- case SNDRV_PCM_TRIGGER_SUSPEND: /* fall through */
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_STOP:
ptcr |= ATMEL_PDC_RXTDIS;
if (chip->opened <= 1)
@@ -462,9 +447,7 @@
static const struct snd_pcm_ops atmel_ac97_playback_ops = {
.open = atmel_ac97c_playback_open,
.close = atmel_ac97c_playback_close,
- .ioctl = snd_pcm_lib_ioctl,
.hw_params = atmel_ac97c_playback_hw_params,
- .hw_free = snd_pcm_lib_free_pages,
.prepare = atmel_ac97c_playback_prepare,
.trigger = atmel_ac97c_playback_trigger,
.pointer = atmel_ac97c_playback_pointer,
@@ -473,9 +456,7 @@
static const struct snd_pcm_ops atmel_ac97_capture_ops = {
.open = atmel_ac97c_capture_open,
.close = atmel_ac97c_capture_close,
- .ioctl = snd_pcm_lib_ioctl,
.hw_params = atmel_ac97c_capture_hw_params,
- .hw_free = snd_pcm_lib_free_pages,
.prepare = atmel_ac97c_capture_prepare,
.trigger = atmel_ac97c_capture_trigger,
.pointer = atmel_ac97c_capture_pointer,
@@ -494,12 +475,12 @@
struct snd_pcm_runtime *runtime;
int offset, next_period, block_size;
dev_dbg(&chip->pdev->dev, "channel A event%s%s%s%s%s%s\n",
- casr & AC97C_CSR_OVRUN ? " OVRUN" : "",
- casr & AC97C_CSR_RXRDY ? " RXRDY" : "",
- casr & AC97C_CSR_UNRUN ? " UNRUN" : "",
- casr & AC97C_CSR_TXEMPTY ? " TXEMPTY" : "",
- casr & AC97C_CSR_TXRDY ? " TXRDY" : "",
- !casr ? " NONE" : "");
+ (casr & AC97C_CSR_OVRUN) ? " OVRUN" : "",
+ (casr & AC97C_CSR_RXRDY) ? " RXRDY" : "",
+ (casr & AC97C_CSR_UNRUN) ? " UNRUN" : "",
+ (casr & AC97C_CSR_TXEMPTY) ? " TXEMPTY" : "",
+ (casr & AC97C_CSR_TXRDY) ? " TXRDY" : "",
+ !casr ? " NONE" : "");
if ((casr & camr) & AC97C_CSR_ENDTX) {
runtime = chip->playback_substream->runtime;
block_size = frames_to_bytes(runtime, runtime->period_size);
@@ -540,11 +521,11 @@
if (sr & AC97C_SR_COEVT) {
dev_info(&chip->pdev->dev, "codec channel event%s%s%s%s%s\n",
- cosr & AC97C_CSR_OVRUN ? " OVRUN" : "",
- cosr & AC97C_CSR_RXRDY ? " RXRDY" : "",
- cosr & AC97C_CSR_TXEMPTY ? " TXEMPTY" : "",
- cosr & AC97C_CSR_TXRDY ? " TXRDY" : "",
- !cosr ? " NONE" : "");
+ (cosr & AC97C_CSR_OVRUN) ? " OVRUN" : "",
+ (cosr & AC97C_CSR_RXRDY) ? " RXRDY" : "",
+ (cosr & AC97C_CSR_TXEMPTY) ? " TXEMPTY" : "",
+ (cosr & AC97C_CSR_TXRDY) ? " TXRDY" : "",
+ !cosr ? " NONE" : "");
retval = IRQ_HANDLED;
}
@@ -603,11 +584,9 @@
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &atmel_ac97_capture_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &atmel_ac97_playback_ops);
- retval = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+ snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
&chip->pdev->dev, hw.periods_min * hw.period_bytes_min,
hw.buffer_bytes_max);
- if (retval)
- return retval;
pcm->private_data = chip;
pcm->info_flags = 0;
@@ -723,7 +702,7 @@
struct atmel_ac97c *chip;
struct resource *regs;
struct clk *pclk;
- static struct snd_ac97_bus_ops ops = {
+ static const struct snd_ac97_bus_ops ops = {
.write = atmel_ac97c_write,
.read = atmel_ac97c_read,
};
--
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