[alsa-devel] [PATCH 1/2] es18xx: remove snd_card pointer from snd_es18xx structure
Krzysztof Helt
krzysztof.h1 at poczta.fm
Sun Oct 25 11:05:19 CET 2009
From: Krzysztof Helt <krzysztof.h1 at wp.pl>
The snd_card pointer is redundant and code can be easily
changed to work without it.
Signed-off-by: Krzysztof Helt <krzysztof.h1 at wp.pl>
---
Both patches are just small code improvement for the driver.
sound/isa/es18xx.c | 75 ++++++++++++++++++++++++++++++---------------------
1 files changed, 44 insertions(+), 31 deletions(-)
diff --git a/sound/isa/es18xx.c b/sound/isa/es18xx.c
index 8cfbff7..160752b 100644
--- a/sound/isa/es18xx.c
+++ b/sound/isa/es18xx.c
@@ -121,7 +121,6 @@ struct snd_es18xx {
unsigned int dma1_shift;
unsigned int dma2_shift;
- struct snd_card *card;
struct snd_pcm *pcm;
struct snd_pcm_substream *playback_a_substream;
struct snd_pcm_substream *capture_a_substream;
@@ -755,7 +754,9 @@ static int snd_es18xx_playback_trigger(struct snd_pcm_substream *substream,
static irqreturn_t snd_es18xx_interrupt(int irq, void *dev_id)
{
- struct snd_es18xx *chip = dev_id;
+ struct snd_card *card = dev_id;
+ struct snd_audiodrive *acard = card->private_data;
+ struct snd_es18xx *chip = acard->chip;
unsigned char status;
if (chip->caps & ES18XX_CONTROL) {
@@ -805,12 +806,16 @@ static irqreturn_t snd_es18xx_interrupt(int irq, void *dev_id)
int split = 0;
if (chip->caps & ES18XX_HWV) {
split = snd_es18xx_mixer_read(chip, 0x64) & 0x80;
- snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_switch->id);
- snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_volume->id);
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &chip->hw_switch->id);
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &chip->hw_volume->id);
}
if (!split) {
- snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->master_switch->id);
- snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->master_volume->id);
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &chip->master_switch->id);
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &chip->master_volume->id);
}
/* ack interrupt */
snd_es18xx_mixer_write(chip, 0x66, 0x00);
@@ -1691,8 +1696,11 @@ static struct snd_pcm_ops snd_es18xx_capture_ops = {
.pointer = snd_es18xx_capture_pointer,
};
-static int __devinit snd_es18xx_pcm(struct snd_es18xx *chip, int device, struct snd_pcm ** rpcm)
+static int __devinit snd_es18xx_pcm(struct snd_card *card, int device,
+ struct snd_pcm **rpcm)
{
+ struct snd_audiodrive *acard = card->private_data;
+ struct snd_es18xx *chip = acard->chip;
struct snd_pcm *pcm;
char str[16];
int err;
@@ -1701,9 +1709,9 @@ static int __devinit snd_es18xx_pcm(struct snd_es18xx *chip, int device, struct
*rpcm = NULL;
sprintf(str, "ES%x", chip->version);
if (chip->caps & ES18XX_PCM2)
- err = snd_pcm_new(chip->card, str, device, 2, 1, &pcm);
+ err = snd_pcm_new(card, str, device, 2, 1, &pcm);
else
- err = snd_pcm_new(chip->card, str, device, 1, 1, &pcm);
+ err = snd_pcm_new(card, str, device, 1, 1, &pcm);
if (err < 0)
return err;
@@ -1737,7 +1745,7 @@ static int snd_es18xx_suspend(struct snd_card *card, pm_message_t state)
struct snd_audiodrive *acard = card->private_data;
struct snd_es18xx *chip = acard->chip;
- snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
+ snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
snd_pcm_suspend_all(chip->pcm);
@@ -1758,18 +1766,21 @@ static int snd_es18xx_resume(struct snd_card *card)
/* restore PM register, we won't wake till (not 0x07) i/o activity though */
snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg ^= ES18XX_PM_FM);
- snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
+ snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
#endif /* CONFIG_PM */
-static int snd_es18xx_free(struct snd_es18xx *chip)
+static int snd_es18xx_free(struct snd_card *card)
{
+ struct snd_audiodrive *acard = card->private_data;
+ struct snd_es18xx *chip = acard->chip;
+
release_and_free_resource(chip->res_port);
release_and_free_resource(chip->res_ctrl_port);
release_and_free_resource(chip->res_mpu_port);
if (chip->irq >= 0)
- free_irq(chip->irq, (void *) chip);
+ free_irq(chip->irq, (void *) card);
if (chip->dma1 >= 0) {
disable_dma(chip->dma1);
free_dma(chip->dma1);
@@ -1784,8 +1795,7 @@ static int snd_es18xx_free(struct snd_es18xx *chip)
static int snd_es18xx_dev_free(struct snd_device *device)
{
- struct snd_es18xx *chip = device->device_data;
- return snd_es18xx_free(chip);
+ return snd_es18xx_free(device->card);
}
static int __devinit snd_es18xx_new_device(struct snd_card *card,
@@ -1808,7 +1818,6 @@ static int __devinit snd_es18xx_new_device(struct snd_card *card,
spin_lock_init(&chip->reg_lock);
spin_lock_init(&chip->mixer_lock);
spin_lock_init(&chip->ctrl_lock);
- chip->card = card;
chip->port = port;
chip->mpu_port = mpu_port;
chip->fm_port = fm_port;
@@ -1818,53 +1827,55 @@ static int __devinit snd_es18xx_new_device(struct snd_card *card,
chip->audio2_vol = 0x00;
chip->active = 0;
- if ((chip->res_port = request_region(port, 16, "ES18xx")) == NULL) {
- snd_es18xx_free(chip);
+ chip->res_port = request_region(port, 16, "ES18xx");
+ if (chip->res_port == NULL) {
+ snd_es18xx_free(card);
snd_printk(KERN_ERR PFX "unable to grap ports 0x%lx-0x%lx\n", port, port + 16 - 1);
return -EBUSY;
}
- if (request_irq(irq, snd_es18xx_interrupt, IRQF_DISABLED, "ES18xx", (void *) chip)) {
- snd_es18xx_free(chip);
+ if (request_irq(irq, snd_es18xx_interrupt, IRQF_DISABLED, "ES18xx",
+ (void *) card)) {
+ snd_es18xx_free(card);
snd_printk(KERN_ERR PFX "unable to grap IRQ %d\n", irq);
return -EBUSY;
}
chip->irq = irq;
if (request_dma(dma1, "ES18xx DMA 1")) {
- snd_es18xx_free(chip);
+ snd_es18xx_free(card);
snd_printk(KERN_ERR PFX "unable to grap DMA1 %d\n", dma1);
return -EBUSY;
}
chip->dma1 = dma1;
if (dma2 != dma1 && request_dma(dma2, "ES18xx DMA 2")) {
- snd_es18xx_free(chip);
+ snd_es18xx_free(card);
snd_printk(KERN_ERR PFX "unable to grap DMA2 %d\n", dma2);
return -EBUSY;
}
chip->dma2 = dma2;
if (snd_es18xx_probe(chip) < 0) {
- snd_es18xx_free(chip);
+ snd_es18xx_free(card);
return -ENODEV;
}
- if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
- snd_es18xx_free(chip);
+ err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, NULL, &ops);
+ if (err < 0) {
+ snd_es18xx_free(card);
return err;
}
*rchip = chip;
return 0;
}
-static int __devinit snd_es18xx_mixer(struct snd_es18xx *chip)
+static int __devinit snd_es18xx_mixer(struct snd_card *card)
{
- struct snd_card *card;
+ struct snd_audiodrive *acard = card->private_data;
+ struct snd_es18xx *chip = acard->chip;
int err;
unsigned int idx;
- card = chip->card;
-
strcpy(card->mixername, chip->pcm->name);
for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_base_controls); idx++) {
@@ -2161,10 +2172,12 @@ static int __devinit snd_audiodrive_probe(struct snd_card *card, int dev)
chip->port,
irq[dev], dma1[dev]);
- if ((err = snd_es18xx_pcm(chip, 0, NULL)) < 0)
+ err = snd_es18xx_pcm(card, 0, NULL);
+ if (err < 0)
return err;
- if ((err = snd_es18xx_mixer(chip)) < 0)
+ err = snd_es18xx_mixer(card);
+ if (err < 0)
return err;
if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
--
1.6.0.3
----------------------------------------------------------------------
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