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Diffstat (limited to 'sound/pci/lola/lola_pcm.c')
-rw-r--r--sound/pci/lola/lola_pcm.c97
1 files changed, 34 insertions, 63 deletions
diff --git a/sound/pci/lola/lola_pcm.c b/sound/pci/lola/lola_pcm.c
index 1268ba329016..6c046ecd6e08 100644
--- a/sound/pci/lola/lola_pcm.c
+++ b/sound/pci/lola/lola_pcm.c
@@ -1,21 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Support for Digigram Lola PCI-e boards
*
* Copyright (c) 2011 Takashi Iwai <tiwai@suse.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- * 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., 59
- * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <linux/kernel.h>
@@ -197,7 +184,7 @@ static void lola_stream_reset(struct lola *chip, struct lola_stream *str)
}
}
-static struct snd_pcm_hardware lola_pcm_hw = {
+static const struct snd_pcm_hardware lola_pcm_hw = {
.info = (SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -227,11 +214,9 @@ static int lola_pcm_open(struct snd_pcm_substream *substream)
struct lola_stream *str = lola_get_stream(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
- mutex_lock(&chip->open_mutex);
- if (str->opened) {
- mutex_unlock(&chip->open_mutex);
+ guard(mutex)(&chip->open_mutex);
+ if (str->opened)
return -EBUSY;
- }
str->substream = substream;
str->master = NULL;
str->opened = 1;
@@ -252,7 +237,6 @@ static int lola_pcm_open(struct snd_pcm_substream *substream)
chip->granularity);
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
chip->granularity);
- mutex_unlock(&chip->open_mutex);
return 0;
}
@@ -274,7 +258,7 @@ static int lola_pcm_close(struct snd_pcm_substream *substream)
struct lola *chip = snd_pcm_substream_chip(substream);
struct lola_stream *str = lola_get_stream(substream);
- mutex_lock(&chip->open_mutex);
+ guard(mutex)(&chip->open_mutex);
if (str->substream == substream) {
str->substream = NULL;
str->opened = 0;
@@ -283,7 +267,6 @@ static int lola_pcm_close(struct snd_pcm_substream *substream)
/* release sample rate */
chip->sample_rate = 0;
}
- mutex_unlock(&chip->open_mutex);
return 0;
}
@@ -295,8 +278,7 @@ static int lola_pcm_hw_params(struct snd_pcm_substream *substream,
str->bufsize = 0;
str->period_bytes = 0;
str->format_verb = 0;
- return snd_pcm_lib_malloc_pages(substream,
- params_buffer_bytes(hw_params));
+ return 0;
}
static int lola_pcm_hw_free(struct snd_pcm_substream *substream)
@@ -305,21 +287,20 @@ static int lola_pcm_hw_free(struct snd_pcm_substream *substream)
struct lola_pcm *pcm = lola_get_pcm(substream);
struct lola_stream *str = lola_get_stream(substream);
- mutex_lock(&chip->open_mutex);
+ guard(mutex)(&chip->open_mutex);
lola_stream_reset(chip, str);
lola_cleanup_slave_streams(pcm, str);
- mutex_unlock(&chip->open_mutex);
- return snd_pcm_lib_free_pages(substream);
+ return 0;
}
/*
* set up a BDL entry
*/
static int setup_bdle(struct snd_pcm_substream *substream,
- struct lola_stream *str, u32 **bdlp,
+ struct lola_stream *str, __le32 **bdlp,
int ofs, int size)
{
- u32 *bdl = *bdlp;
+ __le32 *bdl = *bdlp;
while (size > 0) {
dma_addr_t addr;
@@ -355,14 +336,14 @@ static int lola_setup_periods(struct lola *chip, struct lola_pcm *pcm,
struct snd_pcm_substream *substream,
struct lola_stream *str)
{
- u32 *bdl;
+ __le32 *bdl;
int i, ofs, periods, period_bytes;
period_bytes = str->period_bytes;
periods = str->bufsize / period_bytes;
/* program the initial BDL entries */
- bdl = (u32 *)(pcm->bdl.area + LOLA_BDL_ENTRY_SIZE * str->index);
+ bdl = (__le32 *)(pcm->bdl->area + LOLA_BDL_ENTRY_SIZE * str->index);
ofs = 0;
str->frags = 0;
for (i = 0; i < periods; i++) {
@@ -447,7 +428,7 @@ static int lola_setup_controller(struct lola *chip, struct lola_pcm *pcm,
return -EINVAL;
/* set up BDL */
- bdl = pcm->bdl.addr + LOLA_BDL_ENTRY_SIZE * str->index;
+ bdl = pcm->bdl->addr + LOLA_BDL_ENTRY_SIZE * str->index;
lola_dsd_write(chip, str->dsd, BDPL, (u32)bdl);
lola_dsd_write(chip, str->dsd, BDPU, upper_32_bits(bdl));
/* program the stream LVI (last valid index) of the BDL */
@@ -471,18 +452,16 @@ static int lola_pcm_prepare(struct snd_pcm_substream *substream)
unsigned int bufsize, period_bytes, format_verb;
int i, err;
- mutex_lock(&chip->open_mutex);
- lola_stream_reset(chip, str);
- lola_cleanup_slave_streams(pcm, str);
- if (str->index + runtime->channels > pcm->num_streams) {
- mutex_unlock(&chip->open_mutex);
- return -EINVAL;
- }
- for (i = 1; i < runtime->channels; i++) {
- str[i].master = str;
- str[i].opened = 1;
+ scoped_guard(mutex, &chip->open_mutex) {
+ lola_stream_reset(chip, str);
+ lola_cleanup_slave_streams(pcm, str);
+ if (str->index + runtime->channels > pcm->num_streams)
+ return -EINVAL;
+ for (i = 1; i < runtime->channels; i++) {
+ str[i].master = str;
+ str[i].opened = 1;
+ }
}
- mutex_unlock(&chip->open_mutex);
bufsize = snd_pcm_lib_buffer_bytes(substream);
period_bytes = snd_pcm_lib_period_bytes(substream);
@@ -544,7 +523,7 @@ static int lola_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
*/
sync_streams = (start && snd_pcm_stream_linked(substream));
tstamp = lola_get_tstamp(chip, !sync_streams);
- spin_lock(&chip->reg_lock);
+ guard(spinlock)(&chip->reg_lock);
snd_pcm_group_for_each_entry(s, substream) {
if (s->pcm->card != substream->pcm->card)
continue;
@@ -557,7 +536,6 @@ static int lola_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
str->paused = !start;
snd_pcm_trigger_done(s, substream);
}
- spin_unlock(&chip->reg_lock);
return 0;
}
@@ -575,8 +553,9 @@ static snd_pcm_uframes_t lola_pcm_pointer(struct snd_pcm_substream *substream)
void lola_pcm_update(struct lola *chip, struct lola_pcm *pcm, unsigned int bits)
{
int i;
+ u8 num_streams = min_t(u8, pcm->num_streams, ARRAY_SIZE(pcm->streams));
- for (i = 0; bits && i < pcm->num_streams; i++) {
+ for (i = 0; bits && i < num_streams; i++) {
if (bits & (1 << i)) {
struct lola_stream *str = &pcm->streams[i];
if (str->substream && str->running)
@@ -589,13 +568,11 @@ void lola_pcm_update(struct lola *chip, struct lola_pcm *pcm, unsigned int bits)
static const struct snd_pcm_ops lola_pcm_ops = {
.open = lola_pcm_open,
.close = lola_pcm_close,
- .ioctl = snd_pcm_lib_ioctl,
.hw_params = lola_pcm_hw_params,
.hw_free = lola_pcm_hw_free,
.prepare = lola_pcm_prepare,
.trigger = lola_pcm_trigger,
.pointer = lola_pcm_pointer,
- .page = snd_pcm_sgbuf_ops_page,
};
int lola_create_pcm(struct lola *chip)
@@ -604,11 +581,11 @@ int lola_create_pcm(struct lola *chip)
int i, err;
for (i = 0; i < 2; i++) {
- err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
- snd_dma_pci_data(chip->pci),
- PAGE_SIZE, &chip->pcm[i].bdl);
- if (err < 0)
- return err;
+ chip->pcm[i].bdl =
+ snd_devm_alloc_pages(&chip->pci->dev, SNDRV_DMA_TYPE_DEV,
+ PAGE_SIZE);
+ if (!chip->pcm[i].bdl)
+ return -ENOMEM;
}
err = snd_pcm_new(chip->card, "Digigram Lola", 0,
@@ -617,25 +594,19 @@ int lola_create_pcm(struct lola *chip)
&pcm);
if (err < 0)
return err;
- strlcpy(pcm->name, "Digigram Lola", sizeof(pcm->name));
+ strscpy(pcm->name, "Digigram Lola", sizeof(pcm->name));
pcm->private_data = chip;
for (i = 0; i < 2; i++) {
if (chip->pcm[i].num_streams)
snd_pcm_set_ops(pcm, i, &lola_pcm_ops);
}
/* buffer pre-allocation */
- snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
- snd_dma_pci_data(chip->pci),
- 1024 * 64, 32 * 1024 * 1024);
+ snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
+ &chip->pci->dev,
+ 1024 * 64, 32 * 1024 * 1024);
return 0;
}
-void lola_free_pcm(struct lola *chip)
-{
- snd_dma_free_pages(&chip->pcm[0].bdl);
- snd_dma_free_pages(&chip->pcm[1].bdl);
-}
-
/*
*/
generated by cgit (git 2.34.1) at 2025-12-27 23:36:56 +0000