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Diffstat (limited to 'sound/mips/hal2.c')
-rw-r--r--sound/mips/hal2.c117
1 files changed, 39 insertions, 78 deletions
diff --git a/sound/mips/hal2.c b/sound/mips/hal2.c
index a4ed54aeaf1d..f88e6a6733a5 100644
--- a/sound/mips/hal2.c
+++ b/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 @@ static inline void hal2_stop_adc(struct snd_hal2 *hal2)
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;
@@ -482,18 +471,22 @@ static int hal2_alloc_dmabuf(struct hal2_codec *codec)
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 = {
@@ -515,42 +508,20 @@ static const struct snd_pcm_hardware hal2_pcm_hw = {
.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;
}
@@ -606,7 +577,9 @@ static void hal2_playback_transfer(struct snd_pcm_substream *substream,
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);
}
@@ -624,22 +597,16 @@ static int hal2_capture_open(struct snd_pcm_substream *substream)
{
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;
}
@@ -694,7 +661,9 @@ static void hal2_capture_transfer(struct snd_pcm_substream *substream,
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);
}
@@ -711,9 +680,6 @@ static int hal2_capture_ack(struct snd_pcm_substream *substream)
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,
@@ -723,9 +689,6 @@ static const struct snd_pcm_ops hal2_playback_ops = {
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,
@@ -743,16 +706,15 @@ static int hal2_pcm_create(struct snd_hal2 *hal2)
return err;
pcm->private_data = hal2;
- strcpy(pcm->name, "SGI HAL2");
+ strscpy(pcm->name, "SGI HAL2");
/* set operators */
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
&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;
}
@@ -766,7 +728,7 @@ static int hal2_dev_free(struct snd_device *device)
return 0;
}
-static struct snd_device_ops hal2_ops = {
+static const struct snd_device_ops hal2_ops = {
.dev_free = hal2_dev_free,
};
@@ -900,8 +862,8 @@ static int hal2_probe(struct platform_device *pdev)
return err;
}
- strcpy(card->driver, "SGI HAL2 Audio");
- strcpy(card->shortname, "SGI HAL2 Audio");
+ strscpy(card->driver, "SGI HAL2 Audio");
+ strscpy(card->shortname, "SGI HAL2 Audio");
sprintf(card->longname, "%s irq %i",
card->shortname,
SGI_HPCDMA_IRQ);
@@ -915,17 +877,16 @@ static int hal2_probe(struct platform_device *pdev)
return 0;
}
-static int hal2_remove(struct platform_device *pdev)
+static void hal2_remove(struct platform_device *pdev)
{
struct snd_card *card = platform_get_drvdata(pdev);
snd_card_free(card);
- return 0;
}
static struct platform_driver hal2_driver = {
.probe = hal2_probe,
- .remove = hal2_remove,
+ .remove = hal2_remove,
.driver = {
.name = "sgihal2",
}
generated by cgit (git 2.34.1) at 2025-12-24 22:57:21 +0000