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Diffstat (limited to 'sound/pci/cs4281.c')
-rw-r--r--sound/pci/cs4281.c288
1 files changed, 93 insertions, 195 deletions
diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c
index ec4247638fa1..d00b2c9fb1e3 100644
--- a/sound/pci/cs4281.c
+++ b/sound/pci/cs4281.c
@@ -1,22 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for Cirrus Logic CS4281 based PCI soundcard
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>,
- *
- *
- * 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/io.h>
@@ -40,7 +25,6 @@
MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_DESCRIPTION("Cirrus Logic CS4281");
MODULE_LICENSE("GPL");
-MODULE_SUPPORTED_DEVICE("{{Cirrus Logic,CS4281}}");
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
@@ -486,10 +470,7 @@ struct cs4281 {
struct gameport *gameport;
-#ifdef CONFIG_PM_SLEEP
u32 suspend_regs[SUSPEND_REGISTERS];
-#endif
-
};
static irqreturn_t snd_cs4281_interrupt(int irq, void *dev_id);
@@ -670,7 +651,7 @@ static int snd_cs4281_trigger(struct snd_pcm_substream *substream, int cmd)
struct cs4281_dma *dma = substream->runtime->private_data;
struct cs4281 *chip = snd_pcm_substream_chip(substream);
- spin_lock(&chip->reg_lock);
+ guard(spinlock)(&chip->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
dma->valDCR |= BA0_DCR_MSK;
@@ -697,19 +678,17 @@ static int snd_cs4281_trigger(struct snd_pcm_substream *substream, int cmd)
dma->valFCR &= ~BA0_FCR_FEN;
break;
default:
- spin_unlock(&chip->reg_lock);
return -EINVAL;
}
snd_cs4281_pokeBA0(chip, dma->regDMR, dma->valDMR);
snd_cs4281_pokeBA0(chip, dma->regFCR, dma->valFCR);
snd_cs4281_pokeBA0(chip, dma->regDCR, dma->valDCR);
- spin_unlock(&chip->reg_lock);
return 0;
}
static unsigned int snd_cs4281_rate(unsigned int rate, unsigned int *real_rate)
{
- unsigned int val = ~0;
+ unsigned int val;
if (real_rate)
*real_rate = rate;
@@ -722,9 +701,8 @@ static unsigned int snd_cs4281_rate(unsigned int rate, unsigned int *real_rate)
case 44100: return 1;
case 48000: return 0;
default:
- goto __variable;
+ break;
}
- __variable:
val = 1536000 / rate;
if (real_rate)
*real_rate = 1536000 / val;
@@ -796,26 +774,14 @@ static void snd_cs4281_mode(struct cs4281 *chip, struct cs4281_dma *dma,
snd_cs4281_pokeBA0(chip, dma->regFSIC, 0);
}
-static int snd_cs4281_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
-{
- return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
-}
-
-static int snd_cs4281_hw_free(struct snd_pcm_substream *substream)
-{
- return snd_pcm_lib_free_pages(substream);
-}
-
static int snd_cs4281_playback_prepare(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct cs4281_dma *dma = runtime->private_data;
struct cs4281 *chip = snd_pcm_substream_chip(substream);
- spin_lock_irq(&chip->reg_lock);
+ guard(spinlock_irq)(&chip->reg_lock);
snd_cs4281_mode(chip, dma, runtime, 0, 1);
- spin_unlock_irq(&chip->reg_lock);
return 0;
}
@@ -825,9 +791,8 @@ static int snd_cs4281_capture_prepare(struct snd_pcm_substream *substream)
struct cs4281_dma *dma = runtime->private_data;
struct cs4281 *chip = snd_pcm_substream_chip(substream);
- spin_lock_irq(&chip->reg_lock);
+ guard(spinlock_irq)(&chip->reg_lock);
snd_cs4281_mode(chip, dma, runtime, 1, 1);
- spin_unlock_irq(&chip->reg_lock);
return 0;
}
@@ -954,9 +919,6 @@ static int snd_cs4281_capture_close(struct snd_pcm_substream *substream)
static const struct snd_pcm_ops snd_cs4281_playback_ops = {
.open = snd_cs4281_playback_open,
.close = snd_cs4281_playback_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = snd_cs4281_hw_params,
- .hw_free = snd_cs4281_hw_free,
.prepare = snd_cs4281_playback_prepare,
.trigger = snd_cs4281_trigger,
.pointer = snd_cs4281_pointer,
@@ -965,9 +927,6 @@ static const struct snd_pcm_ops snd_cs4281_playback_ops = {
static const struct snd_pcm_ops snd_cs4281_capture_ops = {
.open = snd_cs4281_capture_open,
.close = snd_cs4281_capture_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = snd_cs4281_hw_params,
- .hw_free = snd_cs4281_hw_free,
.prepare = snd_cs4281_capture_prepare,
.trigger = snd_cs4281_trigger,
.pointer = snd_cs4281_pointer,
@@ -987,11 +946,11 @@ static int snd_cs4281_pcm(struct cs4281 *chip, int device)
pcm->private_data = chip;
pcm->info_flags = 0;
- strcpy(pcm->name, "CS4281");
+ strscpy(pcm->name, "CS4281");
chip->pcm = pcm;
- snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
- snd_dma_pci_data(chip->pci), 64*1024, 512*1024);
+ snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &chip->pci->dev,
+ 64*1024, 512*1024);
return 0;
}
@@ -1097,28 +1056,33 @@ static int snd_cs4281_mixer(struct cs4281 *chip)
struct snd_card *card = chip->card;
struct snd_ac97_template ac97;
int err;
- static struct snd_ac97_bus_ops ops = {
+ static const struct snd_ac97_bus_ops ops = {
.write = snd_cs4281_ac97_write,
.read = snd_cs4281_ac97_read,
};
- if ((err = snd_ac97_bus(card, 0, &ops, chip, &chip->ac97_bus)) < 0)
+ err = snd_ac97_bus(card, 0, &ops, chip, &chip->ac97_bus);
+ if (err < 0)
return err;
chip->ac97_bus->private_free = snd_cs4281_mixer_free_ac97_bus;
memset(&ac97, 0, sizeof(ac97));
ac97.private_data = chip;
ac97.private_free = snd_cs4281_mixer_free_ac97;
- if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
+ err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97);
+ if (err < 0)
return err;
if (chip->dual_codec) {
ac97.num = 1;
- if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_secondary)) < 0)
+ err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_secondary);
+ if (err < 0)
return err;
}
- if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4281_fm_vol, chip))) < 0)
+ err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4281_fm_vol, chip));
+ if (err < 0)
return err;
- if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4281_pcm_vol, chip))) < 0)
+ err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4281_pcm_vol, chip));
+ if (err < 0)
return err;
return 0;
}
@@ -1162,11 +1126,11 @@ static ssize_t snd_cs4281_BA1_read(struct snd_info_entry *entry,
return count;
}
-static struct snd_info_entry_ops snd_cs4281_proc_ops_BA0 = {
+static const struct snd_info_entry_ops snd_cs4281_proc_ops_BA0 = {
.read = snd_cs4281_BA0_read,
};
-static struct snd_info_entry_ops snd_cs4281_proc_ops_BA1 = {
+static const struct snd_info_entry_ops snd_cs4281_proc_ops_BA1 = {
.read = snd_cs4281_BA1_read,
};
@@ -1174,8 +1138,7 @@ static void snd_cs4281_proc_init(struct cs4281 *chip)
{
struct snd_info_entry *entry;
- if (! snd_card_proc_new(chip->card, "cs4281", &entry))
- snd_info_set_text_ops(entry, chip, snd_cs4281_proc_read);
+ snd_card_ro_proc_new(chip->card, "cs4281", chip, snd_cs4281_proc_read);
if (! snd_card_proc_new(chip->card, "cs4281_BA0", &entry)) {
entry->content = SNDRV_INFO_CONTENT_DATA;
entry->private_data = chip;
@@ -1298,12 +1261,11 @@ static inline int snd_cs4281_create_gameport(struct cs4281 *chip) { return -ENOS
static inline void snd_cs4281_free_gameport(struct cs4281 *chip) { }
#endif /* IS_REACHABLE(CONFIG_GAMEPORT) */
-static int snd_cs4281_free(struct cs4281 *chip)
+static void snd_cs4281_free(struct snd_card *card)
{
- snd_cs4281_free_gameport(chip);
+ struct cs4281 *chip = card->private_data;
- if (chip->irq >= 0)
- synchronize_irq(chip->irq);
+ snd_cs4281_free_gameport(chip);
/* Mask interrupts */
snd_cs4281_pokeBA0(chip, BA0_HIMR, 0x7fffffff);
@@ -1311,48 +1273,20 @@ static int snd_cs4281_free(struct cs4281 *chip)
snd_cs4281_pokeBA0(chip, BA0_CLKCR1, 0);
/* Sound System Power Management - Turn Everything OFF */
snd_cs4281_pokeBA0(chip, BA0_SSPM, 0);
- /* PCI interface - D3 state */
- pci_set_power_state(chip->pci, PCI_D3hot);
-
- if (chip->irq >= 0)
- free_irq(chip->irq, chip);
- iounmap(chip->ba0);
- iounmap(chip->ba1);
- pci_release_regions(chip->pci);
- pci_disable_device(chip->pci);
-
- kfree(chip);
- return 0;
-}
-
-static int snd_cs4281_dev_free(struct snd_device *device)
-{
- struct cs4281 *chip = device->device_data;
- return snd_cs4281_free(chip);
}
static int snd_cs4281_chip_init(struct cs4281 *chip); /* defined below */
static int snd_cs4281_create(struct snd_card *card,
struct pci_dev *pci,
- struct cs4281 **rchip,
int dual_codec)
{
- struct cs4281 *chip;
- unsigned int tmp;
+ struct cs4281 *chip = card->private_data;
int err;
- static struct snd_device_ops ops = {
- .dev_free = snd_cs4281_dev_free,
- };
- *rchip = NULL;
- if ((err = pci_enable_device(pci)) < 0)
+ err = pcim_enable_device(pci);
+ if (err < 0)
return err;
- chip = kzalloc(sizeof(*chip), GFP_KERNEL);
- if (chip == NULL) {
- pci_disable_device(pci);
- return -ENOMEM;
- }
spin_lock_init(&chip->reg_lock);
chip->card = card;
chip->pci = pci;
@@ -1364,43 +1298,30 @@ static int snd_cs4281_create(struct snd_card *card,
}
chip->dual_codec = dual_codec;
- if ((err = pci_request_regions(pci, "CS4281")) < 0) {
- kfree(chip);
- pci_disable_device(pci);
- return err;
- }
+ chip->ba0 = pcim_iomap_region(pci, 0, "CS4281");
+ if (IS_ERR(chip->ba0))
+ return PTR_ERR(chip->ba0);
chip->ba0_addr = pci_resource_start(pci, 0);
- chip->ba1_addr = pci_resource_start(pci, 1);
- chip->ba0 = pci_ioremap_bar(pci, 0);
- chip->ba1 = pci_ioremap_bar(pci, 1);
- if (!chip->ba0 || !chip->ba1) {
- snd_cs4281_free(chip);
- return -ENOMEM;
- }
+ chip->ba1 = pcim_iomap_region(pci, 1, "CS4281");
+ if (IS_ERR(chip->ba1))
+ return PTR_ERR(chip->ba1);
+ chip->ba1_addr = pci_resource_start(pci, 1);
- if (request_irq(pci->irq, snd_cs4281_interrupt, IRQF_SHARED,
- KBUILD_MODNAME, chip)) {
+ if (devm_request_irq(&pci->dev, pci->irq, snd_cs4281_interrupt,
+ IRQF_SHARED, KBUILD_MODNAME, chip)) {
dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
- snd_cs4281_free(chip);
return -ENOMEM;
}
chip->irq = pci->irq;
+ card->sync_irq = chip->irq;
+ card->private_free = snd_cs4281_free;
- tmp = snd_cs4281_chip_init(chip);
- if (tmp) {
- snd_cs4281_free(chip);
- return tmp;
- }
-
- if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
- snd_cs4281_free(chip);
+ err = snd_cs4281_chip_init(chip);
+ if (err)
return err;
- }
snd_cs4281_proc_init(chip);
-
- *rchip = chip;
return 0;
}
@@ -1432,12 +1353,14 @@ static int snd_cs4281_chip_init(struct cs4281 *chip)
* space between 0e4h and 0ffh to be written. */
snd_cs4281_pokeBA0(chip, BA0_CWPR, 0x4281);
- if ((tmp = snd_cs4281_peekBA0(chip, BA0_SERC1)) != (BA0_SERC1_SO1EN | BA0_SERC1_AC97)) {
+ tmp = snd_cs4281_peekBA0(chip, BA0_SERC1);
+ if (tmp != (BA0_SERC1_SO1EN | BA0_SERC1_AC97)) {
dev_err(chip->card->dev,
"SERC1 AC'97 check failed (0x%x)\n", tmp);
return -EIO;
}
- if ((tmp = snd_cs4281_peekBA0(chip, BA0_SERC2)) != (BA0_SERC2_SI1EN | BA0_SERC2_AC97)) {
+ tmp = snd_cs4281_peekBA0(chip, BA0_SERC2);
+ if (tmp != (BA0_SERC2_SI1EN | BA0_SERC2_AC97)) {
dev_err(chip->card->dev,
"SERC2 AC'97 check failed (0x%x)\n", tmp);
return -EIO;
@@ -1634,7 +1557,6 @@ static int snd_cs4281_chip_init(struct cs4281 *chip)
BA0_HISR_DMA(1) |
BA0_HISR_DMA(2) |
BA0_HISR_DMA(3)));
- synchronize_irq(chip->irq);
return 0;
}
@@ -1654,7 +1576,7 @@ static int snd_cs4281_midi_input_open(struct snd_rawmidi_substream *substream)
{
struct cs4281 *chip = substream->rmidi->private_data;
- spin_lock_irq(&chip->reg_lock);
+ guard(spinlock_irq)(&chip->reg_lock);
chip->midcr |= BA0_MIDCR_RXE;
chip->midi_input = substream;
if (!(chip->uartm & CS4281_MODE_OUTPUT)) {
@@ -1662,7 +1584,6 @@ static int snd_cs4281_midi_input_open(struct snd_rawmidi_substream *substream)
} else {
snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr);
}
- spin_unlock_irq(&chip->reg_lock);
return 0;
}
@@ -1670,7 +1591,7 @@ static int snd_cs4281_midi_input_close(struct snd_rawmidi_substream *substream)
{
struct cs4281 *chip = substream->rmidi->private_data;
- spin_lock_irq(&chip->reg_lock);
+ guard(spinlock_irq)(&chip->reg_lock);
chip->midcr &= ~(BA0_MIDCR_RXE | BA0_MIDCR_RIE);
chip->midi_input = NULL;
if (!(chip->uartm & CS4281_MODE_OUTPUT)) {
@@ -1679,7 +1600,6 @@ static int snd_cs4281_midi_input_close(struct snd_rawmidi_substream *substream)
snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr);
}
chip->uartm &= ~CS4281_MODE_INPUT;
- spin_unlock_irq(&chip->reg_lock);
return 0;
}
@@ -1687,7 +1607,7 @@ static int snd_cs4281_midi_output_open(struct snd_rawmidi_substream *substream)
{
struct cs4281 *chip = substream->rmidi->private_data;
- spin_lock_irq(&chip->reg_lock);
+ guard(spinlock_irq)(&chip->reg_lock);
chip->uartm |= CS4281_MODE_OUTPUT;
chip->midcr |= BA0_MIDCR_TXE;
chip->midi_output = substream;
@@ -1696,7 +1616,6 @@ static int snd_cs4281_midi_output_open(struct snd_rawmidi_substream *substream)
} else {
snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr);
}
- spin_unlock_irq(&chip->reg_lock);
return 0;
}
@@ -1704,7 +1623,7 @@ static int snd_cs4281_midi_output_close(struct snd_rawmidi_substream *substream)
{
struct cs4281 *chip = substream->rmidi->private_data;
- spin_lock_irq(&chip->reg_lock);
+ guard(spinlock_irq)(&chip->reg_lock);
chip->midcr &= ~(BA0_MIDCR_TXE | BA0_MIDCR_TIE);
chip->midi_output = NULL;
if (!(chip->uartm & CS4281_MODE_INPUT)) {
@@ -1713,16 +1632,14 @@ static int snd_cs4281_midi_output_close(struct snd_rawmidi_substream *substream)
snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr);
}
chip->uartm &= ~CS4281_MODE_OUTPUT;
- spin_unlock_irq(&chip->reg_lock);
return 0;
}
static void snd_cs4281_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
{
- unsigned long flags;
struct cs4281 *chip = substream->rmidi->private_data;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
if (up) {
if ((chip->midcr & BA0_MIDCR_RIE) == 0) {
chip->midcr |= BA0_MIDCR_RIE;
@@ -1734,16 +1651,14 @@ static void snd_cs4281_midi_input_trigger(struct snd_rawmidi_substream *substrea
snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr);
}
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
}
static void snd_cs4281_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
{
- unsigned long flags;
struct cs4281 *chip = substream->rmidi->private_data;
unsigned char byte;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
if (up) {
if ((chip->midcr & BA0_MIDCR_TIE) == 0) {
chip->midcr |= BA0_MIDCR_TIE;
@@ -1764,7 +1679,6 @@ static void snd_cs4281_midi_output_trigger(struct snd_rawmidi_substream *substre
snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr);
}
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
}
static const struct snd_rawmidi_ops snd_cs4281_midi_output =
@@ -1786,9 +1700,10 @@ static int snd_cs4281_midi(struct cs4281 *chip, int device)
struct snd_rawmidi *rmidi;
int err;
- if ((err = snd_rawmidi_new(chip->card, "CS4281", device, 1, 1, &rmidi)) < 0)
+ err = snd_rawmidi_new(chip->card, "CS4281", device, 1, 1, &rmidi);
+ if (err < 0)
return err;
- strcpy(rmidi->name, "CS4281");
+ strscpy(rmidi->name, "CS4281");
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_cs4281_midi_output);
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_cs4281_midi_input);
rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX;
@@ -1816,10 +1731,12 @@ static irqreturn_t snd_cs4281_interrupt(int irq, void *dev_id)
}
if (status & (BA0_HISR_DMA(0)|BA0_HISR_DMA(1)|BA0_HISR_DMA(2)|BA0_HISR_DMA(3))) {
- for (dma = 0; dma < 4; dma++)
+ for (dma = 0; dma < 4; dma++) {
+ bool period_elapsed = false;
+ cdma = &chip->dma[dma];
+
if (status & BA0_HISR_DMA(dma)) {
- cdma = &chip->dma[dma];
- spin_lock(&chip->reg_lock);
+ guard(spinlock)(&chip->reg_lock);
/* ack DMA IRQ */
val = snd_cs4281_peekBA0(chip, cdma->regHDSR);
/* workaround, sometimes CS4281 acknowledges */
@@ -1828,24 +1745,24 @@ static irqreturn_t snd_cs4281_interrupt(int irq, void *dev_id)
if ((val & BA0_HDSR_DHTC) && !(cdma->frag & 1)) {
cdma->frag--;
chip->spurious_dhtc_irq++;
- spin_unlock(&chip->reg_lock);
continue;
}
if ((val & BA0_HDSR_DTC) && (cdma->frag & 1)) {
cdma->frag--;
chip->spurious_dtc_irq++;
- spin_unlock(&chip->reg_lock);
continue;
}
- spin_unlock(&chip->reg_lock);
- snd_pcm_period_elapsed(cdma->substream);
+ period_elapsed = true;
}
+ if (period_elapsed)
+ snd_pcm_period_elapsed(cdma->substream);
+ }
}
if ((status & BA0_HISR_MIDI) && chip->rmidi) {
unsigned char c;
- spin_lock(&chip->reg_lock);
+ guard(spinlock)(&chip->reg_lock);
while ((snd_cs4281_peekBA0(chip, BA0_MIDSR) & BA0_MIDSR_RBE) == 0) {
c = snd_cs4281_peekBA0(chip, BA0_MIDRP);
if ((chip->midcr & BA0_MIDCR_RIE) == 0)
@@ -1862,7 +1779,6 @@ static irqreturn_t snd_cs4281_interrupt(int irq, void *dev_id)
}
snd_cs4281_pokeBA0(chip, BA0_MIDWP, c);
}
- spin_unlock(&chip->reg_lock);
}
/* EOI to the PCI part... reenables interrupts */
@@ -1878,7 +1794,6 @@ static irqreturn_t snd_cs4281_interrupt(int irq, void *dev_id)
static void snd_cs4281_opl3_command(struct snd_opl3 *opl3, unsigned short cmd,
unsigned char val)
{
- unsigned long flags;
struct cs4281 *chip = opl3->private_data;
void __iomem *port;
@@ -1887,19 +1802,17 @@ static void snd_cs4281_opl3_command(struct snd_opl3 *opl3, unsigned short cmd,
else
port = chip->ba0 + BA0_B0AP; /* left port */
- spin_lock_irqsave(&opl3->reg_lock, flags);
+ guard(spinlock_irqsave)(&opl3->reg_lock);
writel((unsigned int)cmd, port);
udelay(10);
writel((unsigned int)val, port + 4);
udelay(30);
-
- spin_unlock_irqrestore(&opl3->reg_lock, flags);
}
-static int snd_cs4281_probe(struct pci_dev *pci,
- const struct pci_device_id *pci_id)
+static int __snd_cs4281_probe(struct pci_dev *pci,
+ const struct pci_device_id *pci_id)
{
static int dev;
struct snd_card *card;
@@ -1914,69 +1827,61 @@ static int snd_cs4281_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;
- if ((err = snd_cs4281_create(card, pci, &chip, dual_codec[dev])) < 0) {
- snd_card_free(card);
+ err = snd_cs4281_create(card, pci, dual_codec[dev]);
+ if (err < 0)
return err;
- }
- card->private_data = chip;
- if ((err = snd_cs4281_mixer(chip)) < 0) {
- snd_card_free(card);
+ err = snd_cs4281_mixer(chip);
+ if (err < 0)
return err;
- }
- if ((err = snd_cs4281_pcm(chip, 0)) < 0) {
- snd_card_free(card);
+ err = snd_cs4281_pcm(chip, 0);
+ if (err < 0)
return err;
- }
- if ((err = snd_cs4281_midi(chip, 0)) < 0) {
- snd_card_free(card);
+ err = snd_cs4281_midi(chip, 0);
+ if (err < 0)
return err;
- }
- if ((err = snd_opl3_new(card, OPL3_HW_OPL3_CS4281, &opl3)) < 0) {
- snd_card_free(card);
+ err = snd_opl3_new(card, OPL3_HW_OPL3_CS4281, &opl3);
+ if (err < 0)
return err;
- }
opl3->private_data = chip;
opl3->command = snd_cs4281_opl3_command;
snd_opl3_init(opl3);
- if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
- snd_card_free(card);
+ err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
+ if (err < 0)
return err;
- }
snd_cs4281_create_gameport(chip);
- strcpy(card->driver, "CS4281");
- strcpy(card->shortname, "Cirrus Logic CS4281");
+ strscpy(card->driver, "CS4281");
+ strscpy(card->shortname, "Cirrus Logic CS4281");
sprintf(card->longname, "%s at 0x%lx, irq %d",
card->shortname,
chip->ba0_addr,
chip->irq);
- if ((err = snd_card_register(card)) < 0) {
- snd_card_free(card);
+ err = snd_card_register(card);
+ if (err < 0)
return err;
- }
pci_set_drvdata(pci, card);
dev++;
return 0;
}
-static void snd_cs4281_remove(struct pci_dev *pci)
+static int snd_cs4281_probe(struct pci_dev *pci,
+ const struct pci_device_id *pci_id)
{
- snd_card_free(pci_get_drvdata(pci));
+ return snd_card_free_on_error(&pci->dev, __snd_cs4281_probe(pci, pci_id));
}
/*
* Power Management
*/
-#ifdef CONFIG_PM_SLEEP
-
-static int saved_regs[SUSPEND_REGISTERS] = {
+static const int saved_regs[SUSPEND_REGISTERS] = {
BA0_JSCTL,
BA0_GPIOR,
BA0_SSCR,
@@ -2002,8 +1907,6 @@ static int cs4281_suspend(struct device *dev)
unsigned int i;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
- snd_pcm_suspend_all(chip->pcm);
-
snd_ac97_suspend(chip->ac97);
snd_ac97_suspend(chip->ac97_secondary);
@@ -2066,19 +1969,14 @@ static int cs4281_resume(struct device *dev)
return 0;
}
-static SIMPLE_DEV_PM_OPS(cs4281_pm, cs4281_suspend, cs4281_resume);
-#define CS4281_PM_OPS &cs4281_pm
-#else
-#define CS4281_PM_OPS NULL
-#endif /* CONFIG_PM_SLEEP */
+static DEFINE_SIMPLE_DEV_PM_OPS(cs4281_pm, cs4281_suspend, cs4281_resume);
static struct pci_driver cs4281_driver = {
.name = KBUILD_MODNAME,
.id_table = snd_cs4281_ids,
.probe = snd_cs4281_probe,
- .remove = snd_cs4281_remove,
.driver = {
- .pm = CS4281_PM_OPS,
+ .pm = &cs4281_pm,
},
};
generated by cgit (git 2.34.1) at 2025-12-24 21:55:49 +0000