1 files changed, 62 insertions, 155 deletions

diff --git a/sound/pci/lx6464es/lx6464es.c b/sound/pci/lx6464es/lx6464es.c
index f9c3e86d55d5..96df00db51d5 100644
--- a/sound/pci/lx6464es/lx6464es.c
+++ b/sound/pci/lx6464es/lx6464es.c
@@ -1,25 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /* -*- linux-c -*- *
  *
  * ALSA driver for the digigram lx6464es interface
  *
  * Copyright (c) 2008, 2009 Tim Blechmann <tim@klingt.org>
- *
- *
- * 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; see the file COPYING.  If not, write to
- * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- *
  */
 
 #include <linux/module.h>
@@ -37,8 +21,6 @@
 MODULE_AUTHOR("Tim Blechmann");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("digigram lx6464es");
-MODULE_SUPPORTED_DEVICE("{digigram lx6464es{}}");
-
 
 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
@@ -65,6 +47,14 @@ static const struct pci_device_id snd_lx6464es_ids[] = {
 			 PCI_VENDOR_ID_DIGIGRAM,
 			 PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_CAE_SERIAL_SUBSYSTEM),
 	},			/* LX6464ES-CAE */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES,
+			 PCI_VENDOR_ID_DIGIGRAM,
+			 PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ESE_SERIAL_SUBSYSTEM),
+	},			/* LX6464ESe */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES,
+			 PCI_VENDOR_ID_DIGIGRAM,
+			 PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ESE_CAE_SERIAL_SUBSYSTEM),
+	},			/* LX6464ESe-CAE */
 	{ 0, },
 };
 
@@ -77,7 +67,7 @@ MODULE_DEVICE_TABLE(pci, snd_lx6464es_ids);
 
 
 /* alsa callbacks */
-static struct snd_pcm_hardware lx_caps = {
+static const struct snd_pcm_hardware lx_caps = {
 	.info             = (SNDRV_PCM_INFO_MMAP |
 			     SNDRV_PCM_INFO_INTERLEAVED |
 			     SNDRV_PCM_INFO_MMAP_VALID |
@@ -217,7 +207,7 @@ static int lx_pcm_open(struct snd_pcm_substream *substream)
 	int board_rate;
 
 	dev_dbg(chip->card->dev, "->lx_pcm_open\n");
-	mutex_lock(&chip->setup_mutex);
+	guard(mutex)(&chip->setup_mutex);
 
 	/* copy the struct snd_pcm_hardware struct */
 	runtime->hw = lx_caps;
@@ -228,7 +218,7 @@ static int lx_pcm_open(struct snd_pcm_substream *substream)
 					    SNDRV_PCM_HW_PARAM_PERIODS);
 	if (err < 0) {
 		dev_warn(chip->card->dev, "could not constrain periods\n");
-		goto exit;
+		return err;
 	}
 #endif
 
@@ -239,7 +229,7 @@ static int lx_pcm_open(struct snd_pcm_substream *substream)
 
 	if (err < 0) {
 		dev_warn(chip->card->dev, "could not constrain periods\n");
-		goto exit;
+		return err;
 	}
 
 	/* constrain period size */
@@ -250,7 +240,7 @@ static int lx_pcm_open(struct snd_pcm_substream *substream)
 	if (err < 0) {
 		dev_warn(chip->card->dev,
 			   "could not constrain period size\n");
-		goto exit;
+		return err;
 	}
 
 	snd_pcm_hw_constraint_step(runtime, 0,
@@ -259,19 +249,16 @@ static int lx_pcm_open(struct snd_pcm_substream *substream)
 	snd_pcm_set_sync(substream);
 	err = 0;
 
-exit:
 	runtime->private_data = chip;
 
-	mutex_unlock(&chip->setup_mutex);
 	dev_dbg(chip->card->dev, "<-lx_pcm_open, %d\n", err);
 	return err;
 }
 
 static int lx_pcm_close(struct snd_pcm_substream *substream)
 {
-	int err = 0;
 	dev_dbg(substream->pcm->card->dev, "->lx_pcm_close\n");
-	return err;
+	return 0;
 }
 
 static snd_pcm_uframes_t lx_pcm_stream_pointer(struct snd_pcm_substream
@@ -286,9 +273,8 @@ static snd_pcm_uframes_t lx_pcm_stream_pointer(struct snd_pcm_substream
 
 	dev_dbg(chip->card->dev, "->lx_pcm_stream_pointer\n");
 
-	mutex_lock(&chip->lock);
+	guard(mutex)(&chip->lock);
 	pos = lx_stream->frame_pos * substream->runtime->period_size;
-	mutex_unlock(&chip->lock);
 
 	dev_dbg(chip->card->dev, "stream_pointer at %ld\n", pos);
 	return pos;
@@ -302,21 +288,21 @@ static int lx_pcm_prepare(struct snd_pcm_substream *substream)
 
 	dev_dbg(chip->card->dev, "->lx_pcm_prepare\n");
 
-	mutex_lock(&chip->setup_mutex);
+	guard(mutex)(&chip->setup_mutex);
 
 	if (chip->hardware_running[is_capture]) {
 		err = lx_hardware_stop(chip, substream);
 		if (err < 0) {
 			dev_err(chip->card->dev, "failed to stop hardware. "
 				   "Error code %d\n", err);
-			goto exit;
+			return err;
 		}
 
 		err = lx_hardware_close(chip, substream);
 		if (err < 0) {
 			dev_err(chip->card->dev, "failed to close hardware. "
 				   "Error code %d\n", err);
-			goto exit;
+			return err;
 		}
 	}
 
@@ -325,14 +311,14 @@ static int lx_pcm_prepare(struct snd_pcm_substream *substream)
 	if (err < 0) {
 		dev_err(chip->card->dev, "failed to open hardware. "
 			   "Error code %d\n", err);
-		goto exit;
+		return err;
 	}
 
 	err = lx_hardware_start(chip, substream);
 	if (err < 0) {
 		dev_err(chip->card->dev, "failed to start hardware. "
 			   "Error code %d\n", err);
-		goto exit;
+		return err;
 	}
 
 	chip->hardware_running[is_capture] = 1;
@@ -342,8 +328,6 @@ static int lx_pcm_prepare(struct snd_pcm_substream *substream)
 			chip->board_sample_rate = substream->runtime->rate;
 	}
 
-exit:
-	mutex_unlock(&chip->setup_mutex);
 	return err;
 }
 
@@ -351,23 +335,17 @@ static int lx_pcm_hw_params(struct snd_pcm_substream *substream,
 			    struct snd_pcm_hw_params *hw_params, int is_capture)
 {
 	struct lx6464es *chip = snd_pcm_substream_chip(substream);
-	int err = 0;
 
 	dev_dbg(chip->card->dev, "->lx_pcm_hw_params\n");
 
-	mutex_lock(&chip->setup_mutex);
-
-	/* set dma buffer */
-	err = snd_pcm_lib_malloc_pages(substream,
-				       params_buffer_bytes(hw_params));
+	guard(mutex)(&chip->setup_mutex);
 
 	if (is_capture)
 		chip->capture_stream.stream = substream;
 	else
 		chip->playback_stream.stream = substream;
 
-	mutex_unlock(&chip->setup_mutex);
-	return err;
+	return 0;
 }
 
 static int lx_pcm_hw_params_playback(struct snd_pcm_substream *substream,
@@ -389,36 +367,32 @@ static int lx_pcm_hw_free(struct snd_pcm_substream *substream)
 	int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
 
 	dev_dbg(chip->card->dev, "->lx_pcm_hw_free\n");
-	mutex_lock(&chip->setup_mutex);
+	guard(mutex)(&chip->setup_mutex);
 
 	if (chip->hardware_running[is_capture]) {
 		err = lx_hardware_stop(chip, substream);
 		if (err < 0) {
 			dev_err(chip->card->dev, "failed to stop hardware. "
 				   "Error code %d\n", err);
-			goto exit;
+			return err;
 		}
 
 		err = lx_hardware_close(chip, substream);
 		if (err < 0) {
 			dev_err(chip->card->dev, "failed to close hardware. "
 				   "Error code %d\n", err);
-			goto exit;
+			return err;
 		}
 
 		chip->hardware_running[is_capture] = 0;
 	}
 
-	err = snd_pcm_lib_free_pages(substream);
-
 	if (is_capture)
 		chip->capture_stream.stream = NULL;
 	else
 		chip->playback_stream.stream = NULL;
 
-exit:
-	mutex_unlock(&chip->setup_mutex);
-	return err;
+	return 0;
 }
 
 static void lx_trigger_start(struct lx6464es *chip, struct lx_stream *lx_stream)
@@ -504,9 +478,7 @@ static void lx_trigger_dispatch_stream(struct lx6464es *chip,
 static int lx_pcm_trigger_dispatch(struct lx6464es *chip,
 				   struct lx_stream *lx_stream, int cmd)
 {
-	int err = 0;
-
-	mutex_lock(&chip->lock);
+	guard(mutex)(&chip->lock);
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
 		lx_stream->status = LX_STREAM_STATUS_SCHEDULE_RUN;
@@ -517,16 +489,13 @@ static int lx_pcm_trigger_dispatch(struct lx6464es *chip,
 		break;
 
 	default:
-		err = -EINVAL;
-		goto exit;
+		return -EINVAL;
 	}
 
 	lx_trigger_dispatch_stream(chip, &chip->capture_stream);
 	lx_trigger_dispatch_stream(chip, &chip->playback_stream);
 
-exit:
-	mutex_unlock(&chip->lock);
-	return err;
+	return 0;
 }
 
 
@@ -542,29 +511,11 @@ static int lx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 	return lx_pcm_trigger_dispatch(chip, stream, cmd);
 }
 
-static int snd_lx6464es_free(struct lx6464es *chip)
+static void snd_lx6464es_free(struct snd_card *card)
 {
-	dev_dbg(chip->card->dev, "->snd_lx6464es_free\n");
+	struct lx6464es *chip = card->private_data;
 
 	lx_irq_disable(chip);
-
-	if (chip->irq >= 0)
-		free_irq(chip->irq, chip);
-
-	iounmap(chip->port_dsp_bar);
-	ioport_unmap(chip->port_plx_remapped);
-
-	pci_release_regions(chip->pci);
-	pci_disable_device(chip->pci);
-
-	kfree(chip);
-
-	return 0;
-}
-
-static int snd_lx6464es_dev_free(struct snd_device *device)
-{
-	return snd_lx6464es_free(device->device_data);
 }
 
 /* reset the dsp during initialization */
@@ -807,7 +758,6 @@ mac_ready:
 static const struct snd_pcm_ops lx_ops_playback = {
 	.open      = lx_pcm_open,
 	.close     = lx_pcm_close,
-	.ioctl     = snd_pcm_lib_ioctl,
 	.prepare   = lx_pcm_prepare,
 	.hw_params = lx_pcm_hw_params_playback,
 	.hw_free   = lx_pcm_hw_free,
@@ -818,7 +768,6 @@ static const struct snd_pcm_ops lx_ops_playback = {
 static const struct snd_pcm_ops lx_ops_capture = {
 	.open      = lx_pcm_open,
 	.close     = lx_pcm_close,
-	.ioctl     = snd_pcm_lib_ioctl,
 	.prepare   = lx_pcm_prepare,
 	.hw_params = lx_pcm_hw_params_capture,
 	.hw_free   = lx_pcm_hw_free,
@@ -852,13 +801,10 @@ static int lx_pcm_create(struct lx6464es *chip)
 
 	pcm->info_flags = 0;
 	pcm->nonatomic = true;
-	strcpy(pcm->name, card_name);
+	strscpy(pcm->name, card_name);
 
-	err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
-						    snd_dma_pci_data(chip->pci),
-						    size, size);
-	if (err < 0)
-		return err;
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+				       &chip->pci->dev, size, size);
 
 	chip->pcm = pcm;
 	chip->capture_stream.is_capture = 1;
@@ -948,33 +894,20 @@ static void lx_proc_levels_read(struct snd_info_entry *entry,
 
 static int lx_proc_create(struct snd_card *card, struct lx6464es *chip)
 {
-	struct snd_info_entry *entry;
-	int err = snd_card_proc_new(card, "levels", &entry);
-	if (err < 0)
-		return err;
-
-	snd_info_set_text_ops(entry, chip, lx_proc_levels_read);
-	return 0;
+	return snd_card_ro_proc_new(card, "levels", chip, lx_proc_levels_read);
 }
 
 
 static int snd_lx6464es_create(struct snd_card *card,
-			       struct pci_dev *pci,
-			       struct lx6464es **rchip)
+			       struct pci_dev *pci)
 {
-	struct lx6464es *chip;
+	struct lx6464es *chip = card->private_data;
 	int err;
 
-	static struct snd_device_ops ops = {
-		.dev_free = snd_lx6464es_dev_free,
-	};
-
 	dev_dbg(card->dev, "->snd_lx6464es_create\n");
 
-	*rchip = NULL;
-
 	/* enable PCI device */
-	err = pci_enable_device(pci);
+	err = pcim_enable_device(pci);
 	if (err < 0)
 		return err;
 
@@ -985,16 +918,9 @@ static int snd_lx6464es_create(struct snd_card *card,
 	if (err < 0) {
 		dev_err(card->dev,
 			"architecture does not support 32bit PCI busmaster DMA\n");
-		pci_disable_device(pci);
 		return -ENXIO;
 	}
 
-	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
-	if (chip == NULL) {
-		err = -ENOMEM;
-		goto alloc_failed;
-	}
-
 	chip->card = card;
 	chip->pci = pci;
 	chip->irq = -1;
@@ -1005,29 +931,32 @@ static int snd_lx6464es_create(struct snd_card *card,
 	mutex_init(&chip->setup_mutex);
 
 	/* request resources */
-	err = pci_request_regions(pci, card_name);
+	err = pcim_request_all_regions(pci, card_name);
 	if (err < 0)
-		goto request_regions_failed;
+		return err;
 
 	/* plx port */
 	chip->port_plx = pci_resource_start(pci, 1);
-	chip->port_plx_remapped = ioport_map(chip->port_plx,
-					     pci_resource_len(pci, 1));
+	chip->port_plx_remapped = devm_ioport_map(&pci->dev, chip->port_plx,
+						  pci_resource_len(pci, 1));
+	if (!chip->port_plx_remapped)
+		return -ENOMEM;
 
 	/* dsp port */
-	chip->port_dsp_bar = pci_ioremap_bar(pci, 2);
+	chip->port_dsp_bar = pcim_iomap(pci, 2, 0);
+	if (!chip->port_dsp_bar)
+		return -ENOMEM;
 
-	err = request_threaded_irq(pci->irq, lx_interrupt, lx_threaded_irq,
-				   IRQF_SHARED, KBUILD_MODNAME, chip);
+	err = devm_request_threaded_irq(&pci->dev, pci->irq, lx_interrupt,
+					lx_threaded_irq, IRQF_SHARED,
+					KBUILD_MODNAME, chip);
 	if (err) {
 		dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
-		goto request_irq_failed;
+		return err;
 	}
 	chip->irq = pci->irq;
-
-	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
-	if (err < 0)
-		goto device_new_failed;
+	card->sync_irq = chip->irq;
+	card->private_free = snd_lx6464es_free;
 
 	err = lx_init_dsp(chip);
 	if (err < 0) {
@@ -1048,22 +977,7 @@ static int snd_lx6464es_create(struct snd_card *card,
 	if (err < 0)
 		return err;
 
-	*rchip = chip;
 	return 0;
-
-device_new_failed:
-	free_irq(pci->irq, chip);
-
-request_irq_failed:
-	pci_release_regions(pci);
-
-request_regions_failed:
-	kfree(chip);
-
-alloc_failed:
-	pci_disable_device(pci);
-
-	return err;
 }
 
 static int snd_lx6464es_probe(struct pci_dev *pci,
@@ -1083,18 +997,19 @@ static int snd_lx6464es_probe(struct pci_dev *pci,
 		return -ENOENT;
 	}
 
-	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
-			   0, &card);
+	err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
+				sizeof(*chip), &card);
 	if (err < 0)
 		return err;
+	chip = card->private_data;
 
-	err = snd_lx6464es_create(card, pci, &chip);
+	err = snd_lx6464es_create(card, pci);
 	if (err < 0) {
 		dev_err(card->dev, "error during snd_lx6464es_create\n");
-		goto out_free;
+		goto error;
 	}
 
-	strcpy(card->driver, "LX6464ES");
+	strscpy(card->driver, "LX6464ES");
 	sprintf(card->id, "LX6464ES_%02X%02X%02X",
 		chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]);
 
@@ -1108,30 +1023,22 @@ static int snd_lx6464es_probe(struct pci_dev *pci,
 
 	err = snd_card_register(card);
 	if (err < 0)
-		goto out_free;
+		goto error;
 
 	dev_dbg(chip->card->dev, "initialization successful\n");
 	pci_set_drvdata(pci, card);
 	dev++;
 	return 0;
 
-out_free:
+ error:
 	snd_card_free(card);
 	return err;
-
 }
 
-static void snd_lx6464es_remove(struct pci_dev *pci)
-{
-	snd_card_free(pci_get_drvdata(pci));
-}
-
-
 static struct pci_driver lx6464es_driver = {
 	.name =     KBUILD_MODNAME,
 	.id_table = snd_lx6464es_ids,
 	.probe =    snd_lx6464es_probe,
-	.remove = snd_lx6464es_remove,
 };
 
 module_pci_driver(lx6464es_driver);