From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/sound/mips/hal2.c | 119 +++++++++++++++++++----------------------------------------
1 files changed, 39 insertions(+), 80 deletions(-)
diff --git a/kernel/sound/mips/hal2.c b/kernel/sound/mips/hal2.c
index c8904e7..9ac9b58 100644
--- a/kernel/sound/mips/hal2.c
+++ b/kernel/sound/mips/hal2.c
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Driver for A2 audio system used in SGI machines
* Copyright (c) 2008 Thomas Bogendoerfer <tsbogend@alpha.fanken.de>
*
* Based on OSS code from Ladislav Michl <ladis@linux-mips.org>, which
* was based on code from Ulf Carlsson
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
*/
#include <linux/kernel.h>
#include <linux/init.h>
@@ -454,22 +441,24 @@
hal2->adc.pbus.pbus->pbdma_ctrl = HPC3_PDMACTRL_LD;
}
-static int hal2_alloc_dmabuf(struct hal2_codec *codec)
+static int hal2_alloc_dmabuf(struct snd_hal2 *hal2, struct hal2_codec *codec,
+ enum dma_data_direction buffer_dir)
{
+ struct device *dev = hal2->card->dev;
struct hal2_desc *desc;
dma_addr_t desc_dma, buffer_dma;
int count = H2_BUF_SIZE / H2_BLOCK_SIZE;
int i;
- codec->buffer = dma_alloc_attrs(NULL, H2_BUF_SIZE, &buffer_dma,
- GFP_KERNEL, DMA_ATTR_NON_CONSISTENT);
+ codec->buffer = dma_alloc_noncoherent(dev, H2_BUF_SIZE, &buffer_dma,
+ buffer_dir, GFP_KERNEL);
if (!codec->buffer)
return -ENOMEM;
- desc = dma_alloc_attrs(NULL, count * sizeof(struct hal2_desc),
- &desc_dma, GFP_KERNEL, DMA_ATTR_NON_CONSISTENT);
+ desc = dma_alloc_noncoherent(dev, count * sizeof(struct hal2_desc),
+ &desc_dma, DMA_BIDIRECTIONAL, GFP_KERNEL);
if (!desc) {
- dma_free_attrs(NULL, H2_BUF_SIZE, codec->buffer, buffer_dma,
- DMA_ATTR_NON_CONSISTENT);
+ dma_free_noncoherent(dev, H2_BUF_SIZE, codec->buffer, buffer_dma,
+ buffer_dir);
return -ENOMEM;
}
codec->buffer_dma = buffer_dma;
@@ -482,25 +471,30 @@
desc_dma : desc_dma + (i + 1) * sizeof(struct hal2_desc);
desc++;
}
- dma_cache_sync(NULL, codec->desc, count * sizeof(struct hal2_desc),
- DMA_TO_DEVICE);
+ dma_sync_single_for_device(dev, codec->desc_dma,
+ count * sizeof(struct hal2_desc),
+ DMA_BIDIRECTIONAL);
codec->desc_count = count;
return 0;
}
-static void hal2_free_dmabuf(struct hal2_codec *codec)
+static void hal2_free_dmabuf(struct snd_hal2 *hal2, struct hal2_codec *codec,
+ enum dma_data_direction buffer_dir)
{
- dma_free_attrs(NULL, codec->desc_count * sizeof(struct hal2_desc),
- codec->desc, codec->desc_dma, DMA_ATTR_NON_CONSISTENT);
- dma_free_attrs(NULL, H2_BUF_SIZE, codec->buffer, codec->buffer_dma,
- DMA_ATTR_NON_CONSISTENT);
+ struct device *dev = hal2->card->dev;
+
+ dma_free_noncoherent(dev, codec->desc_count * sizeof(struct hal2_desc),
+ codec->desc, codec->desc_dma, DMA_BIDIRECTIONAL);
+ dma_free_noncoherent(dev, H2_BUF_SIZE, codec->buffer, codec->buffer_dma,
+ buffer_dir);
}
static const struct snd_pcm_hardware hal2_pcm_hw = {
.info = (SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_BLOCK_TRANSFER),
+ SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_SYNC_APPLPTR),
.formats = SNDRV_PCM_FMTBIT_S16_BE,
.rates = SNDRV_PCM_RATE_8000_48000,
.rate_min = 8000,
@@ -514,42 +508,20 @@
.periods_max = 1024,
};
-static int hal2_pcm_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- int err;
-
- err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
- if (err < 0)
- return err;
-
- return 0;
-}
-
-static int hal2_pcm_hw_free(struct snd_pcm_substream *substream)
-{
- return snd_pcm_lib_free_pages(substream);
-}
-
static int hal2_playback_open(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_hal2 *hal2 = snd_pcm_substream_chip(substream);
- int err;
runtime->hw = hal2_pcm_hw;
-
- err = hal2_alloc_dmabuf(&hal2->dac);
- if (err)
- return err;
- return 0;
+ return hal2_alloc_dmabuf(hal2, &hal2->dac, DMA_TO_DEVICE);
}
static int hal2_playback_close(struct snd_pcm_substream *substream)
{
struct snd_hal2 *hal2 = snd_pcm_substream_chip(substream);
- hal2_free_dmabuf(&hal2->dac);
+ hal2_free_dmabuf(hal2, &hal2->dac, DMA_TO_DEVICE);
return 0;
}
@@ -563,6 +535,8 @@
dac->sample_rate = hal2_compute_rate(dac, runtime->rate);
memset(&dac->pcm_indirect, 0, sizeof(dac->pcm_indirect));
dac->pcm_indirect.hw_buffer_size = H2_BUF_SIZE;
+ dac->pcm_indirect.hw_queue_size = H2_BUF_SIZE / 2;
+ dac->pcm_indirect.hw_io = dac->buffer_dma;
dac->pcm_indirect.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
dac->substream = substream;
hal2_setup_dac(hal2);
@@ -575,9 +549,6 @@
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
- hal2->dac.pcm_indirect.hw_io = hal2->dac.buffer_dma;
- hal2->dac.pcm_indirect.hw_data = 0;
- substream->ops->ack(substream);
hal2_start_dac(hal2);
break;
case SNDRV_PCM_TRIGGER_STOP:
@@ -606,7 +577,9 @@
unsigned char *buf = hal2->dac.buffer + rec->hw_data;
memcpy(buf, substream->runtime->dma_area + rec->sw_data, bytes);
- dma_cache_sync(NULL, buf, bytes, DMA_TO_DEVICE);
+ dma_sync_single_for_device(hal2->card->dev,
+ hal2->dac.buffer_dma + rec->hw_data, bytes,
+ DMA_TO_DEVICE);
}
@@ -615,7 +588,6 @@
struct snd_hal2 *hal2 = snd_pcm_substream_chip(substream);
struct hal2_codec *dac = &hal2->dac;
- dac->pcm_indirect.hw_queue_size = H2_BUF_SIZE / 2;
return snd_pcm_indirect_playback_transfer(substream,
&dac->pcm_indirect,
hal2_playback_transfer);
@@ -625,22 +597,16 @@
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_hal2 *hal2 = snd_pcm_substream_chip(substream);
- struct hal2_codec *adc = &hal2->adc;
- int err;
runtime->hw = hal2_pcm_hw;
-
- err = hal2_alloc_dmabuf(adc);
- if (err)
- return err;
- return 0;
+ return hal2_alloc_dmabuf(hal2, &hal2->adc, DMA_FROM_DEVICE);
}
static int hal2_capture_close(struct snd_pcm_substream *substream)
{
struct snd_hal2 *hal2 = snd_pcm_substream_chip(substream);
- hal2_free_dmabuf(&hal2->adc);
+ hal2_free_dmabuf(hal2, &hal2->adc, DMA_FROM_DEVICE);
return 0;
}
@@ -655,6 +621,7 @@
memset(&adc->pcm_indirect, 0, sizeof(adc->pcm_indirect));
adc->pcm_indirect.hw_buffer_size = H2_BUF_SIZE;
adc->pcm_indirect.hw_queue_size = H2_BUF_SIZE / 2;
+ adc->pcm_indirect.hw_io = adc->buffer_dma;
adc->pcm_indirect.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
adc->substream = substream;
hal2_setup_adc(hal2);
@@ -667,9 +634,6 @@
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
- hal2->adc.pcm_indirect.hw_io = hal2->adc.buffer_dma;
- hal2->adc.pcm_indirect.hw_data = 0;
- printk(KERN_DEBUG "buffer_dma %x\n", hal2->adc.buffer_dma);
hal2_start_adc(hal2);
break;
case SNDRV_PCM_TRIGGER_STOP:
@@ -697,7 +661,9 @@
struct snd_hal2 *hal2 = snd_pcm_substream_chip(substream);
unsigned char *buf = hal2->adc.buffer + rec->hw_data;
- dma_cache_sync(NULL, buf, bytes, DMA_FROM_DEVICE);
+ dma_sync_single_for_cpu(hal2->card->dev,
+ hal2->adc.buffer_dma + rec->hw_data, bytes,
+ DMA_FROM_DEVICE);
memcpy(substream->runtime->dma_area + rec->sw_data, buf, bytes);
}
@@ -714,9 +680,6 @@
static const struct snd_pcm_ops hal2_playback_ops = {
.open = hal2_playback_open,
.close = hal2_playback_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = hal2_pcm_hw_params,
- .hw_free = hal2_pcm_hw_free,
.prepare = hal2_playback_prepare,
.trigger = hal2_playback_trigger,
.pointer = hal2_playback_pointer,
@@ -726,9 +689,6 @@
static const struct snd_pcm_ops hal2_capture_ops = {
.open = hal2_capture_open,
.close = hal2_capture_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = hal2_pcm_hw_params,
- .hw_free = hal2_pcm_hw_free,
.prepare = hal2_capture_prepare,
.trigger = hal2_capture_trigger,
.pointer = hal2_capture_pointer,
@@ -753,9 +713,8 @@
&hal2_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
&hal2_capture_ops);
- snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
- snd_dma_continuous_data(GFP_KERNEL),
- 0, 1024 * 1024);
+ snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
+ NULL, 0, 1024 * 1024);
return 0;
}
@@ -769,7 +728,7 @@
return 0;
}
-static struct snd_device_ops hal2_ops = {
+static const struct snd_device_ops hal2_ops = {
.dev_free = hal2_dev_free,
};
--
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