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Commit da8eedb1 authored by Takashi Iwai's avatar Takashi Iwai
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ALSA: rme96: Fix assignment in if condition 

PCI RME96 driver code contains a few assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.

This patch is merely for coding-style fixes (only systematic
conversions except for a few rate handling codes), no functional
changes.

Link: https://lore.kernel.org/r/20210608140540.17885-32-tiwai@suse.deSigned-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 1c9140b9
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Showing with 82 additions and 66 deletions
sound/pci/rme96.c
View file @ da8eedb1
......@@ -666,12 +666,14 @@ snd_rme96_playback_getrate(struct rme96 *rme96)
int rate, dummy;
if (!(rme96->wcreg & RME96_WCR_MASTER) &&
snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
(rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
{
/* slave clock */
return rate;
snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG) {
rate = snd_rme96_capture_getrate(rme96, &dummy);
if (rate > 0) {
/* slave clock */
return rate;
}
}
rate = ((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_0) & 1) +
(((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_1) & 1) << 1);
switch (rate) {
......@@ -984,10 +986,11 @@ snd_rme96_playback_hw_params(struct snd_pcm_substream *substream,
runtime->dma_bytes = RME96_BUFFER_SIZE;
spin_lock_irq(&rme96->lock);
rate = 0;
if (!(rme96->wcreg & RME96_WCR_MASTER) &&
snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
(rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
{
snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG)
rate = snd_rme96_capture_getrate(rme96, &dummy);
if (rate > 0) {
/* slave clock */
if ((int)params_rate(params) != rate) {
err = -EIO;
......@@ -1046,28 +1049,30 @@ snd_rme96_capture_hw_params(struct snd_pcm_substream *substream,
runtime->dma_bytes = RME96_BUFFER_SIZE;
spin_lock_irq(&rme96->lock);
if ((err = snd_rme96_capture_setformat(rme96, params_format(params))) < 0) {
err = snd_rme96_capture_setformat(rme96, params_format(params));
if (err < 0) {
spin_unlock_irq(&rme96->lock);
return err;
}
if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
if ((err = snd_rme96_capture_analog_setrate(rme96,
params_rate(params))) < 0)
{
err = snd_rme96_capture_analog_setrate(rme96, params_rate(params));
if (err < 0) {
spin_unlock_irq(&rme96->lock);
return err;
}
} else if ((rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0) {
if ((int)params_rate(params) != rate) {
spin_unlock_irq(&rme96->lock);
return -EIO;
}
if ((isadat && runtime->hw.channels_min == 2) ||
(!isadat && runtime->hw.channels_min == 8))
{
spin_unlock_irq(&rme96->lock);
return -EIO;
}
} else {
rate = snd_rme96_capture_getrate(rme96, &isadat);
if (rate > 0) {
if ((int)params_rate(params) != rate) {
spin_unlock_irq(&rme96->lock);
return -EIO;
}
if ((isadat && runtime->hw.channels_min == 2) ||
(!isadat && runtime->hw.channels_min == 8)) {
spin_unlock_irq(&rme96->lock);
return -EIO;
}
}
}
snd_rme96_setframelog(rme96, params_channels(params), 0);
if (rme96->playback_periodsize != 0) {
......@@ -1160,8 +1165,10 @@ rme96_set_buffer_size_constraint(struct rme96 *rme96,
snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
RME96_BUFFER_SIZE);
if ((size = rme96->playback_periodsize) != 0 ||
(size = rme96->capture_periodsize) != 0)
size = rme96->playback_periodsize;
if (!size)
size = rme96->capture_periodsize;
if (size)
snd_pcm_hw_constraint_single(runtime,
SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
size);
......@@ -1191,13 +1198,14 @@ snd_rme96_playback_spdif_open(struct snd_pcm_substream *substream)
runtime->hw = snd_rme96_playback_spdif_info;
if (!(rme96->wcreg & RME96_WCR_MASTER) &&
snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
(rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
{
/* slave clock */
runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
runtime->hw.rate_min = rate;
runtime->hw.rate_max = rate;
snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG) {
rate = snd_rme96_capture_getrate(rme96, &dummy);
if (rate > 0) {
/* slave clock */
runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
runtime->hw.rate_min = rate;
runtime->hw.rate_max = rate;
}
}
rme96_set_buffer_size_constraint(rme96, runtime);
......@@ -1217,16 +1225,16 @@ snd_rme96_capture_spdif_open(struct snd_pcm_substream *substream)
snd_pcm_set_sync(substream);
runtime->hw = snd_rme96_capture_spdif_info;
if (snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
(rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0)
{
if (isadat) {
return -EIO;
}
runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
runtime->hw.rate_min = rate;
runtime->hw.rate_max = rate;
}
if (snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG) {
rate = snd_rme96_capture_getrate(rme96, &isadat);
if (rate > 0) {
if (isadat)
return -EIO;
runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
runtime->hw.rate_min = rate;
runtime->hw.rate_max = rate;
}
}
spin_lock_irq(&rme96->lock);
if (rme96->capture_substream) {
......@@ -1260,14 +1268,16 @@ snd_rme96_playback_adat_open(struct snd_pcm_substream *substream)
runtime->hw = snd_rme96_playback_adat_info;
if (!(rme96->wcreg & RME96_WCR_MASTER) &&
snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
(rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
{
/* slave clock */
runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
runtime->hw.rate_min = rate;
runtime->hw.rate_max = rate;
}
snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG) {
rate = snd_rme96_capture_getrate(rme96, &dummy);
if (rate > 0) {
/* slave clock */
runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
runtime->hw.rate_min = rate;
runtime->hw.rate_max = rate;
}
}
rme96_set_buffer_size_constraint(rme96, runtime);
return 0;
}
......@@ -1286,7 +1296,8 @@ snd_rme96_capture_adat_open(struct snd_pcm_substream *substream)
expension cards AEB4/8-I are RME96_INPUT_INTERNAL */
return -EIO;
}
if ((rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0) {
rate = snd_rme96_capture_getrate(rme96, &isadat);
if (rate > 0) {
if (!isadat) {
return -EIO;
}
......@@ -1603,10 +1614,12 @@ snd_rme96_create(struct rme96 *rme96)
rme96->irq = -1;
spin_lock_init(&rme96->lock);
if ((err = pci_enable_device(pci)) < 0)
err = pci_enable_device(pci);
if (err < 0)
return err;
if ((err = pci_request_regions(pci, "RME96")) < 0)
err = pci_request_regions(pci, "RME96");
if (err < 0)
return err;
rme96->port = pci_resource_start(rme96->pci, 0);
......@@ -1630,11 +1643,11 @@ snd_rme96_create(struct rme96 *rme96)
pci_read_config_byte(pci, 8, &rme96->rev);
/* set up ALSA pcm device for S/PDIF */
if ((err = snd_pcm_new(rme96->card, "Digi96 IEC958", 0,
1, 1, &rme96->spdif_pcm)) < 0)
{
err = snd_pcm_new(rme96->card, "Digi96 IEC958", 0,
1, 1, &rme96->spdif_pcm);
if (err < 0)
return err;
}
rme96->spdif_pcm->private_data = rme96;
rme96->spdif_pcm->private_free = snd_rme96_free_spdif_pcm;
strcpy(rme96->spdif_pcm->name, "Digi96 IEC958");
......@@ -1648,11 +1661,10 @@ snd_rme96_create(struct rme96 *rme96)
/* ADAT is not available on the base model */
rme96->adat_pcm = NULL;
} else {
if ((err = snd_pcm_new(rme96->card, "Digi96 ADAT", 1,
1, 1, &rme96->adat_pcm)) < 0)
{
err = snd_pcm_new(rme96->card, "Digi96 ADAT", 1,
1, 1, &rme96->adat_pcm);
if (err < 0)
return err;
}
rme96->adat_pcm->private_data = rme96;
rme96->adat_pcm->private_free = snd_rme96_free_adat_pcm;
strcpy(rme96->adat_pcm->name, "Digi96 ADAT");
......@@ -1701,9 +1713,9 @@ snd_rme96_create(struct rme96 *rme96)
}
/* init switch interface */
if ((err = snd_rme96_create_switches(rme96->card, rme96)) < 0) {
err = snd_rme96_create_switches(rme96->card, rme96);
if (err < 0)
return err;
}
/* init proc interface */
snd_rme96_proc_init(rme96);
......@@ -2336,16 +2348,20 @@ snd_rme96_create_switches(struct snd_card *card,
struct snd_kcontrol *kctl;
for (idx = 0; idx < 7; idx++) {
if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme96_controls[idx], rme96))) < 0)
kctl = snd_ctl_new1(&snd_rme96_controls[idx], rme96);
err = snd_ctl_add(card, kctl);
if (err < 0)
return err;
if (idx == 1) /* IEC958 (S/PDIF) Stream */
rme96->spdif_ctl = kctl;
}
if (RME96_HAS_ANALOG_OUT(rme96)) {
for (idx = 7; idx < 10; idx++)
if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_rme96_controls[idx], rme96))) < 0)
for (idx = 7; idx < 10; idx++) {
err = snd_ctl_add(card, snd_ctl_new1(&snd_rme96_controls[idx], rme96));
if (err < 0)
return err;
}
}
return 0;
......
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