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Diffstat (limited to 'sound/isa/sb/sb16_main.c')
-rw-r--r--sound/isa/sb/sb16_main.c222
1 files changed, 79 insertions, 143 deletions
diff --git a/sound/isa/sb/sb16_main.c b/sound/isa/sb/sb16_main.c
index 4be1350f6649..4d64db4f5852 100644
--- a/sound/isa/sb/sb16_main.c
+++ b/sound/isa/sb/sb16_main.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
* Routines for control of 16-bit SoundBlaster cards and clones
@@ -15,22 +16,6 @@
* 16bit DMA transfers from DSP chip (capture) until 8bit transfer
* to DSP chip (playback) starts. This bug can be avoided with
* "16bit DMA Allocation" setting set to Playback or Capture.
- *
- *
- * 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>
@@ -49,6 +34,9 @@ MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_DESCRIPTION("Routines for control of 16-bit SoundBlaster cards and clones");
MODULE_LICENSE("GPL");
+#define runtime_format_bits(runtime) \
+ ((unsigned int)pcm_format_to_bits((runtime)->format))
+
#ifdef CONFIG_SND_SB16_CSP
static void snd_sb16_csp_playback_prepare(struct snd_sb *chip, struct snd_pcm_runtime *runtime)
{
@@ -58,7 +46,7 @@ static void snd_sb16_csp_playback_prepare(struct snd_sb *chip, struct snd_pcm_ru
if (csp->running & SNDRV_SB_CSP_ST_LOADED) {
/* manually loaded codec */
if ((csp->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) &&
- ((1U << runtime->format) == csp->acc_format)) {
+ (runtime_format_bits(runtime) == csp->acc_format)) {
/* Supported runtime PCM format for playback */
if (csp->ops.csp_use(csp) == 0) {
/* If CSP was successfully acquired */
@@ -66,7 +54,7 @@ static void snd_sb16_csp_playback_prepare(struct snd_sb *chip, struct snd_pcm_ru
}
} else if ((csp->mode & SNDRV_SB_CSP_MODE_QSOUND) && (csp->q_enabled)) {
/* QSound decoder is loaded and enabled */
- if ((1 << runtime->format) & (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
+ if (runtime_format_bits(runtime) & (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE)) {
/* Only for simple PCM formats */
if (csp->ops.csp_use(csp) == 0) {
@@ -106,7 +94,7 @@ static void snd_sb16_csp_capture_prepare(struct snd_sb *chip, struct snd_pcm_run
if (csp->running & SNDRV_SB_CSP_ST_LOADED) {
/* manually loaded codec */
if ((csp->mode & SNDRV_SB_CSP_MODE_DSP_READ) &&
- ((1U << runtime->format) == csp->acc_format)) {
+ (runtime_format_bits(runtime) == csp->acc_format)) {
/* Supported runtime PCM format for capture */
if (csp->ops.csp_use(csp) == 0) {
/* If CSP was successfully acquired */
@@ -142,9 +130,8 @@ static void snd_sb16_csp_update(struct snd_sb *chip)
struct snd_sb_csp *csp = chip->csp;
if (csp->qpos_changed) {
- spin_lock(&chip->reg_lock);
+ guard(spinlock)(&chip->reg_lock);
csp->ops.csp_qsound_transfer (csp);
- spin_unlock(&chip->reg_lock);
}
}
}
@@ -225,9 +212,7 @@ static void snd_sb16_setup_rate(struct snd_sb *chip,
unsigned short rate,
int channel)
{
- unsigned long flags;
-
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
if (chip->mode & (channel == SNDRV_PCM_STREAM_PLAYBACK ? SB_MODE_PLAYBACK_16 : SB_MODE_CAPTURE_16))
snd_sb_ack_16bit(chip);
else
@@ -241,24 +226,10 @@ static void snd_sb16_setup_rate(struct snd_sb *chip,
snd_sbdsp_command(chip, rate >> 8);
snd_sbdsp_command(chip, rate & 0xff);
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
-}
-
-static int snd_sb16_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_sb16_hw_free(struct snd_pcm_substream *substream)
-{
- snd_pcm_lib_free_pages(substream);
- return 0;
}
static int snd_sb16_playback_prepare(struct snd_pcm_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned char format;
@@ -277,7 +248,7 @@ static int snd_sb16_playback_prepare(struct snd_pcm_substream *substream)
snd_dma_program(dma, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
count = snd_pcm_lib_period_bytes(substream);
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
if (chip->mode & SB_MODE_PLAYBACK_16) {
count >>= 1;
count--;
@@ -294,7 +265,6 @@ static int snd_sb16_playback_prepare(struct snd_pcm_substream *substream)
snd_sbdsp_command(chip, count >> 8);
snd_sbdsp_command(chip, SB_DSP_DMA8_OFF);
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
@@ -302,9 +272,8 @@ static int snd_sb16_playback_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_sb *chip = snd_pcm_substream_chip(substream);
- int result = 0;
- spin_lock(&chip->reg_lock);
+ guard(spinlock)(&chip->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
@@ -320,15 +289,13 @@ static int snd_sb16_playback_trigger(struct snd_pcm_substream *substream,
chip->mode &= ~SB_RATE_LOCK_PLAYBACK;
break;
default:
- result = -EINVAL;
+ return -EINVAL;
}
- spin_unlock(&chip->reg_lock);
- return result;
+ return 0;
}
static int snd_sb16_capture_prepare(struct snd_pcm_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned char format;
@@ -346,7 +313,7 @@ static int snd_sb16_capture_prepare(struct snd_pcm_substream *substream)
snd_dma_program(dma, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
count = snd_pcm_lib_period_bytes(substream);
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
if (chip->mode & SB_MODE_CAPTURE_16) {
count >>= 1;
count--;
@@ -363,7 +330,6 @@ static int snd_sb16_capture_prepare(struct snd_pcm_substream *substream)
snd_sbdsp_command(chip, count >> 8);
snd_sbdsp_command(chip, SB_DSP_DMA8_OFF);
}
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
@@ -371,9 +337,8 @@ static int snd_sb16_capture_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_sb *chip = snd_pcm_substream_chip(substream);
- int result = 0;
- spin_lock(&chip->reg_lock);
+ guard(spinlock)(&chip->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
@@ -389,10 +354,9 @@ static int snd_sb16_capture_trigger(struct snd_pcm_substream *substream,
chip->mode &= ~SB_RATE_LOCK_CAPTURE;
break;
default:
- result = -EINVAL;
+ return -EINVAL;
}
- spin_unlock(&chip->reg_lock);
- return result;
+ return 0;
}
irqreturn_t snd_sb16dsp_interrupt(int irq, void *dev_id)
@@ -401,9 +365,9 @@ irqreturn_t snd_sb16dsp_interrupt(int irq, void *dev_id)
unsigned char status;
int ok;
- spin_lock(&chip->mixer_lock);
- status = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS);
- spin_unlock(&chip->mixer_lock);
+ scoped_guard(spinlock, &chip->mixer_lock) {
+ status = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS);
+ }
if ((status & SB_IRQTYPE_MPUIN) && chip->rmidi_callback)
chip->rmidi_callback(irq, chip->rmidi->private_data);
if (status & SB_IRQTYPE_8BIT) {
@@ -417,11 +381,11 @@ irqreturn_t snd_sb16dsp_interrupt(int irq, void *dev_id)
snd_pcm_period_elapsed(chip->capture_substream);
ok++;
}
- spin_lock(&chip->reg_lock);
- if (!ok)
- snd_sbdsp_command(chip, SB_DSP_DMA8_OFF);
- snd_sb_ack_8bit(chip);
- spin_unlock(&chip->reg_lock);
+ scoped_guard(spinlock, &chip->reg_lock) {
+ if (!ok)
+ snd_sbdsp_command(chip, SB_DSP_DMA8_OFF);
+ snd_sb_ack_8bit(chip);
+ }
}
if (status & SB_IRQTYPE_16BIT) {
ok = 0;
@@ -434,11 +398,11 @@ irqreturn_t snd_sb16dsp_interrupt(int irq, void *dev_id)
snd_pcm_period_elapsed(chip->capture_substream);
ok++;
}
- spin_lock(&chip->reg_lock);
- if (!ok)
- snd_sbdsp_command(chip, SB_DSP_DMA16_OFF);
- snd_sb_ack_16bit(chip);
- spin_unlock(&chip->reg_lock);
+ scoped_guard(spinlock, &chip->reg_lock) {
+ if (!ok)
+ snd_sbdsp_command(chip, SB_DSP_DMA16_OFF);
+ snd_sb_ack_16bit(chip);
+ }
}
return IRQ_HANDLED;
}
@@ -473,7 +437,7 @@ static snd_pcm_uframes_t snd_sb16_capture_pointer(struct snd_pcm_substream *subs
*/
-static struct snd_pcm_hardware snd_sb16_playback =
+static const struct snd_pcm_hardware snd_sb16_playback =
{
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_MMAP_VALID),
@@ -491,7 +455,7 @@ static struct snd_pcm_hardware snd_sb16_playback =
.fifo_size = 0,
};
-static struct snd_pcm_hardware snd_sb16_capture =
+static const struct snd_pcm_hardware snd_sb16_capture =
{
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_MMAP_VALID),
@@ -515,15 +479,12 @@ static struct snd_pcm_hardware snd_sb16_capture =
static int snd_sb16_playback_open(struct snd_pcm_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
- spin_lock_irqsave(&chip->open_lock, flags);
- if (chip->mode & SB_MODE_PLAYBACK) {
- spin_unlock_irqrestore(&chip->open_lock, flags);
+ guard(spinlock_irqsave)(&chip->open_lock);
+ if (chip->mode & SB_MODE_PLAYBACK)
return -EAGAIN;
- }
runtime->hw = snd_sb16_playback;
/* skip if 16 bit DMA was reserved for capture */
@@ -557,7 +518,6 @@ static int snd_sb16_playback_open(struct snd_pcm_substream *substream)
runtime->hw.period_bytes_max = 64 * 1024;
goto __open_ok;
}
- spin_unlock_irqrestore(&chip->open_lock, flags);
return -EAGAIN;
__open_ok:
@@ -571,34 +531,28 @@ static int snd_sb16_playback_open(struct snd_pcm_substream *substream)
if (chip->mode & SB_RATE_LOCK)
runtime->hw.rate_min = runtime->hw.rate_max = chip->locked_rate;
chip->playback_substream = substream;
- spin_unlock_irqrestore(&chip->open_lock, flags);
return 0;
}
static int snd_sb16_playback_close(struct snd_pcm_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
snd_sb16_csp_playback_close(chip);
- spin_lock_irqsave(&chip->open_lock, flags);
+ guard(spinlock_irqsave)(&chip->open_lock);
chip->playback_substream = NULL;
chip->mode &= ~SB_MODE_PLAYBACK;
- spin_unlock_irqrestore(&chip->open_lock, flags);
return 0;
}
static int snd_sb16_capture_open(struct snd_pcm_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
- spin_lock_irqsave(&chip->open_lock, flags);
- if (chip->mode & SB_MODE_CAPTURE) {
- spin_unlock_irqrestore(&chip->open_lock, flags);
+ guard(spinlock_irqsave)(&chip->open_lock);
+ if (chip->mode & SB_MODE_CAPTURE)
return -EAGAIN;
- }
runtime->hw = snd_sb16_capture;
/* skip if 16 bit DMA was reserved for playback */
@@ -632,7 +586,6 @@ static int snd_sb16_capture_open(struct snd_pcm_substream *substream)
runtime->hw.period_bytes_max = 64 * 1024;
goto __open_ok;
}
- spin_unlock_irqrestore(&chip->open_lock, flags);
return -EAGAIN;
__open_ok:
@@ -646,20 +599,17 @@ static int snd_sb16_capture_open(struct snd_pcm_substream *substream)
if (chip->mode & SB_RATE_LOCK)
runtime->hw.rate_min = runtime->hw.rate_max = chip->locked_rate;
chip->capture_substream = substream;
- spin_unlock_irqrestore(&chip->open_lock, flags);
return 0;
}
static int snd_sb16_capture_close(struct snd_pcm_substream *substream)
{
- unsigned long flags;
struct snd_sb *chip = snd_pcm_substream_chip(substream);
snd_sb16_csp_capture_close(chip);
- spin_lock_irqsave(&chip->open_lock, flags);
+ guard(spinlock_irqsave)(&chip->open_lock);
chip->capture_substream = NULL;
chip->mode &= ~SB_MODE_CAPTURE;
- spin_unlock_irqrestore(&chip->open_lock, flags);
return 0;
}
@@ -712,28 +662,33 @@ static int snd_sb16_dma_control_info(struct snd_kcontrol *kcontrol, struct snd_c
static int snd_sb16_dma_control_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
- spin_lock_irqsave(&chip->reg_lock, flags);
+ guard(spinlock_irqsave)(&chip->reg_lock);
ucontrol->value.enumerated.item[0] = snd_sb16_get_dma_mode(chip);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0;
}
static int snd_sb16_dma_control_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb *chip = snd_kcontrol_chip(kcontrol);
- unsigned long flags;
unsigned char nval, oval;
int change;
- if ((nval = ucontrol->value.enumerated.item[0]) > 2)
+ if (chip->mode & (SB_MODE_PLAYBACK | SB_MODE_CAPTURE))
+ return -EBUSY;
+
+ nval = ucontrol->value.enumerated.item[0];
+ if (nval > 2)
return -EINVAL;
- spin_lock_irqsave(&chip->reg_lock, flags);
- oval = snd_sb16_get_dma_mode(chip);
- change = nval != oval;
- snd_sb16_set_dma_mode(chip, nval);
- spin_unlock_irqrestore(&chip->reg_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->reg_lock) {
+ oval = snd_sb16_get_dma_mode(chip);
+ change = nval != oval;
+ snd_sb16_set_dma_mode(chip, nval);
+ }
+ if (change) {
+ snd_dma_disable(chip->dma8);
+ snd_dma_disable(chip->dma16);
+ }
return change;
}
@@ -751,15 +706,13 @@ static const struct snd_kcontrol_new snd_sb16_dma_control = {
int snd_sb16dsp_configure(struct snd_sb * chip)
{
- unsigned long flags;
unsigned char irqreg = 0, dmareg = 0, mpureg;
unsigned char realirq, realdma, realmpureg;
/* note: mpu register should be present only on SB16 Vibra soundcards */
- // printk(KERN_DEBUG "codec->irq=%i, codec->dma8=%i, codec->dma16=%i\n", chip->irq, chip->dma8, chip->dma16);
- spin_lock_irqsave(&chip->mixer_lock, flags);
- mpureg = snd_sbmixer_read(chip, SB_DSP4_MPUSETUP) & ~0x06;
- spin_unlock_irqrestore(&chip->mixer_lock, flags);
+ scoped_guard(spinlock_irqsave, &chip->mixer_lock) {
+ mpureg = snd_sbmixer_read(chip, SB_DSP4_MPUSETUP) & ~0x06;
+ }
switch (chip->irq) {
case 2:
case 9:
@@ -817,44 +770,43 @@ int snd_sb16dsp_configure(struct snd_sb * chip)
default:
mpureg |= 0x02; /* disable MPU */
}
- spin_lock_irqsave(&chip->mixer_lock, flags);
-
- snd_sbmixer_write(chip, SB_DSP4_IRQSETUP, irqreg);
- realirq = snd_sbmixer_read(chip, SB_DSP4_IRQSETUP);
- snd_sbmixer_write(chip, SB_DSP4_DMASETUP, dmareg);
- realdma = snd_sbmixer_read(chip, SB_DSP4_DMASETUP);
+ scoped_guard(spinlock_irqsave, &chip->mixer_lock) {
+ snd_sbmixer_write(chip, SB_DSP4_IRQSETUP, irqreg);
+ realirq = snd_sbmixer_read(chip, SB_DSP4_IRQSETUP);
- snd_sbmixer_write(chip, SB_DSP4_MPUSETUP, mpureg);
- realmpureg = snd_sbmixer_read(chip, SB_DSP4_MPUSETUP);
+ snd_sbmixer_write(chip, SB_DSP4_DMASETUP, dmareg);
+ realdma = snd_sbmixer_read(chip, SB_DSP4_DMASETUP);
- spin_unlock_irqrestore(&chip->mixer_lock, flags);
+ snd_sbmixer_write(chip, SB_DSP4_MPUSETUP, mpureg);
+ realmpureg = snd_sbmixer_read(chip, SB_DSP4_MPUSETUP);
+ }
if ((~realirq) & irqreg || (~realdma) & dmareg) {
- snd_printk(KERN_ERR "SB16 [0x%lx]: unable to set DMA & IRQ (PnP device?)\n", chip->port);
- snd_printk(KERN_ERR "SB16 [0x%lx]: wanted: irqreg=0x%x, dmareg=0x%x, mpureg = 0x%x\n", chip->port, realirq, realdma, realmpureg);
- snd_printk(KERN_ERR "SB16 [0x%lx]: got: irqreg=0x%x, dmareg=0x%x, mpureg = 0x%x\n", chip->port, irqreg, dmareg, mpureg);
+ dev_err(chip->card->dev,
+ "SB16 [0x%lx]: unable to set DMA & IRQ (PnP device?)\n",
+ chip->port);
+ dev_err(chip->card->dev,
+ "SB16 [0x%lx]: wanted: irqreg=0x%x, dmareg=0x%x, mpureg = 0x%x\n",
+ chip->port, realirq, realdma, realmpureg);
+ dev_err(chip->card->dev,
+ "SB16 [0x%lx]: got: irqreg=0x%x, dmareg=0x%x, mpureg = 0x%x\n",
+ chip->port, irqreg, dmareg, mpureg);
return -ENODEV;
}
return 0;
}
-static struct snd_pcm_ops snd_sb16_playback_ops = {
+static const struct snd_pcm_ops snd_sb16_playback_ops = {
.open = snd_sb16_playback_open,
.close = snd_sb16_playback_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = snd_sb16_hw_params,
- .hw_free = snd_sb16_hw_free,
.prepare = snd_sb16_playback_prepare,
.trigger = snd_sb16_playback_trigger,
.pointer = snd_sb16_playback_pointer,
};
-static struct snd_pcm_ops snd_sb16_capture_ops = {
+static const struct snd_pcm_ops snd_sb16_capture_ops = {
.open = snd_sb16_capture_open,
.close = snd_sb16_capture_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = snd_sb16_hw_params,
- .hw_free = snd_sb16_hw_free,
.prepare = snd_sb16_capture_prepare,
.trigger = snd_sb16_capture_trigger,
.pointer = snd_sb16_capture_pointer,
@@ -866,7 +818,8 @@ int snd_sb16dsp_pcm(struct snd_sb *chip, int device)
struct snd_pcm *pcm;
int err;
- if ((err = snd_pcm_new(card, "SB16 DSP", device, 1, 1, &pcm)) < 0)
+ err = snd_pcm_new(card, "SB16 DSP", device, 1, 1, &pcm);
+ if (err < 0)
return err;
sprintf(pcm->name, "DSP v%i.%i", chip->version >> 8, chip->version & 0xff);
pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
@@ -881,9 +834,8 @@ int snd_sb16dsp_pcm(struct snd_sb *chip, int device)
else
pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
- snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
- snd_dma_isa_data(),
- 64*1024, 128*1024);
+ snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+ card->dev, 64*1024, 128*1024);
return 0;
}
@@ -897,19 +849,3 @@ EXPORT_SYMBOL(snd_sb16dsp_pcm);
EXPORT_SYMBOL(snd_sb16dsp_get_pcm_ops);
EXPORT_SYMBOL(snd_sb16dsp_configure);
EXPORT_SYMBOL(snd_sb16dsp_interrupt);
-
-/*
- * INIT part
- */
-
-static int __init alsa_sb16_init(void)
-{
- return 0;
-}
-
-static void __exit alsa_sb16_exit(void)
-{
-}
-
-module_init(alsa_sb16_init)
-module_exit(alsa_sb16_exit)
generated by cgit (git 2.34.1) at 2025-12-25 19:02:29 +0000