[alsa-devel] [PATCH 1/2] es1688: allocate snd_es1688 structure as a part of snd_card structure
Krzysztof Helt
krzysztof.h1 at poczta.fm
Sun May 9 20:35:44 CEST 2010
From: Krzysztof Helt <krzysztof.h1 at wp.pl>
Allocate the snd_es1688 during the snd_card allocation.
This allows to remove the card pointer from the snd_es1688 structure.
Signed-off-by: Krzysztof Helt <krzysztof.h1 at wp.pl>
---
This is the second version. It removes kfree(chip) as well.
>> Allocate the snd_es1688 during the snd_card allocation.
>> This allows to remove the card pointer from the snd_es1688 structure.
> Any other merit?
There is no real purpose of this change aside saving one allocation,
removing one pointer from the structure and making code shorter.
include/sound/es1688.h | 10 ++++----
sound/isa/es1688/es1688.c | 23 ++++++++++++---------
sound/isa/es1688/es1688_lib.c | 44 +++++++++++++---------------------------
sound/isa/gus/gusextreme.c | 26 +++++++++++++-----------
4 files changed, 46 insertions(+), 57 deletions(-)
diff --git a/include/sound/es1688.h b/include/sound/es1688.h
index 10fcf14..4c29572 100644
--- a/include/sound/es1688.h
+++ b/include/sound/es1688.h
@@ -44,7 +44,6 @@ struct snd_es1688 {
unsigned char pad;
unsigned int dma_size;
- struct snd_card *card;
struct snd_pcm *pcm;
struct snd_pcm_substream *playback_substream;
struct snd_pcm_substream *capture_substream;
@@ -108,14 +107,15 @@ struct snd_es1688 {
void snd_es1688_mixer_write(struct snd_es1688 *chip, unsigned char reg, unsigned char data);
int snd_es1688_create(struct snd_card *card,
+ struct snd_es1688 *chip,
unsigned long port,
unsigned long mpu_port,
int irq,
int mpu_irq,
int dma8,
- unsigned short hardware,
- struct snd_es1688 ** rchip);
-int snd_es1688_pcm(struct snd_es1688 *chip, int device, struct snd_pcm ** rpcm);
-int snd_es1688_mixer(struct snd_es1688 *chip);
+ unsigned short hardware);
+int snd_es1688_pcm(struct snd_card *card, struct snd_es1688 *chip, int device,
+ struct snd_pcm **rpcm);
+int snd_es1688_mixer(struct snd_card *card, struct snd_es1688 *chip);
#endif /* __SOUND_ES1688_H */
diff --git a/sound/isa/es1688/es1688.c b/sound/isa/es1688/es1688.c
index 07df201..2816794 100644
--- a/sound/isa/es1688/es1688.c
+++ b/sound/isa/es1688/es1688.c
@@ -79,8 +79,8 @@ static int __devinit snd_es1688_match(struct device *dev, unsigned int n)
return enable[n];
}
-static int __devinit snd_es1688_legacy_create(struct snd_card *card,
- struct device *dev, unsigned int n, struct snd_es1688 **rchip)
+static int __devinit snd_es1688_legacy_create(struct snd_card *card,
+ struct snd_es1688 *chip, struct device *dev, unsigned int n)
{
static long possible_ports[] = {0x220, 0x240, 0x260};
static int possible_irqs[] = {5, 9, 10, 7, -1};
@@ -104,14 +104,14 @@ static int __devinit snd_es1688_legacy_create(struct snd_card *card,
}
if (port[n] != SNDRV_AUTO_PORT)
- return snd_es1688_create(card, port[n], mpu_port[n], irq[n],
- mpu_irq[n], dma8[n], ES1688_HW_AUTO, rchip);
+ return snd_es1688_create(card, chip, port[n], mpu_port[n],
+ irq[n], mpu_irq[n], dma8[n], ES1688_HW_AUTO);
i = 0;
do {
port[n] = possible_ports[i];
- error = snd_es1688_create(card, port[n], mpu_port[n], irq[n],
- mpu_irq[n], dma8[n], ES1688_HW_AUTO, rchip);
+ error = snd_es1688_create(card, chip, port[n], mpu_port[n],
+ irq[n], mpu_irq[n], dma8[n], ES1688_HW_AUTO);
} while (error < 0 && ++i < ARRAY_SIZE(possible_ports));
return error;
@@ -125,19 +125,22 @@ static int __devinit snd_es1688_probe(struct device *dev, unsigned int n)
struct snd_pcm *pcm;
int error;
- error = snd_card_create(index[n], id[n], THIS_MODULE, 0, &card);
+ error = snd_card_create(index[n], id[n], THIS_MODULE,
+ sizeof(struct snd_es1688), &card);
if (error < 0)
return error;
- error = snd_es1688_legacy_create(card, dev, n, &chip);
+ chip = card->private_data;
+
+ error = snd_es1688_legacy_create(card, chip, dev, n);
if (error < 0)
goto out;
- error = snd_es1688_pcm(chip, 0, &pcm);
+ error = snd_es1688_pcm(card, chip, 0, &pcm);
if (error < 0)
goto out;
- error = snd_es1688_mixer(chip);
+ error = snd_es1688_mixer(card, chip);
if (error < 0)
goto out;
diff --git a/sound/isa/es1688/es1688_lib.c b/sound/isa/es1688/es1688_lib.c
index c76bb00..fdd4404 100644
--- a/sound/isa/es1688/es1688_lib.c
+++ b/sound/isa/es1688/es1688_lib.c
@@ -620,7 +620,6 @@ static int snd_es1688_free(struct snd_es1688 *chip)
disable_dma(chip->dma8);
free_dma(chip->dma8);
}
- kfree(chip);
return 0;
}
@@ -638,23 +637,20 @@ static const char *snd_es1688_chip_id(struct snd_es1688 *chip)
}
int snd_es1688_create(struct snd_card *card,
+ struct snd_es1688 *chip,
unsigned long port,
unsigned long mpu_port,
int irq,
int mpu_irq,
int dma8,
- unsigned short hardware,
- struct snd_es1688 **rchip)
+ unsigned short hardware)
{
static struct snd_device_ops ops = {
.dev_free = snd_es1688_dev_free,
};
- struct snd_es1688 *chip;
int err;
- *rchip = NULL;
- chip = kzalloc(sizeof(*chip), GFP_KERNEL);
if (chip == NULL)
return -ENOMEM;
chip->irq = -1;
@@ -662,25 +658,21 @@ int snd_es1688_create(struct snd_card *card,
if ((chip->res_port = request_region(port + 4, 12, "ES1688")) == NULL) {
snd_printk(KERN_ERR "es1688: can't grab port 0x%lx\n", port + 4);
- snd_es1688_free(chip);
return -EBUSY;
}
if (request_irq(irq, snd_es1688_interrupt, IRQF_DISABLED, "ES1688", (void *) chip)) {
snd_printk(KERN_ERR "es1688: can't grab IRQ %d\n", irq);
- snd_es1688_free(chip);
return -EBUSY;
}
chip->irq = irq;
if (request_dma(dma8, "ES1688")) {
snd_printk(KERN_ERR "es1688: can't grab DMA8 %d\n", dma8);
- snd_es1688_free(chip);
return -EBUSY;
}
chip->dma8 = dma8;
spin_lock_init(&chip->reg_lock);
spin_lock_init(&chip->mixer_lock);
- chip->card = card;
chip->port = port;
mpu_port &= ~0x000f;
if (mpu_port < 0x300 || mpu_port > 0x330)
@@ -689,23 +681,16 @@ int snd_es1688_create(struct snd_card *card,
chip->mpu_irq = mpu_irq;
chip->hardware = hardware;
- if ((err = snd_es1688_probe(chip)) < 0) {
- snd_es1688_free(chip);
+ err = snd_es1688_probe(chip);
+ if (err < 0)
return err;
- }
- if ((err = snd_es1688_init(chip, 1)) < 0) {
- snd_es1688_free(chip);
- return err;
- }
- /* Register device */
- if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
- snd_es1688_free(chip);
+ err = snd_es1688_init(chip, 1);
+ if (err < 0)
return err;
- }
- *rchip = chip;
- return 0;
+ /* Register device */
+ return snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
}
static struct snd_pcm_ops snd_es1688_playback_ops = {
@@ -730,12 +715,14 @@ static struct snd_pcm_ops snd_es1688_capture_ops = {
.pointer = snd_es1688_capture_pointer,
};
-int snd_es1688_pcm(struct snd_es1688 * chip, int device, struct snd_pcm ** rpcm)
+int snd_es1688_pcm(struct snd_card *card, struct snd_es1688 *chip,
+ int device, struct snd_pcm **rpcm)
{
struct snd_pcm *pcm;
int err;
- if ((err = snd_pcm_new(chip->card, "ESx688", device, 1, 1, &pcm)) < 0)
+ err = snd_pcm_new(card, "ESx688", device, 1, 1, &pcm);
+ if (err < 0)
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1688_playback_ops);
@@ -1009,18 +996,15 @@ static unsigned char snd_es1688_init_table[][2] = {
{ ES1688_REC_DEV, 0x17 }
};
-int snd_es1688_mixer(struct snd_es1688 *chip)
+int snd_es1688_mixer(struct snd_card *card, struct snd_es1688 *chip)
{
- struct snd_card *card;
unsigned int idx;
int err;
unsigned char reg, val;
- if (snd_BUG_ON(!chip || !chip->card))
+ if (snd_BUG_ON(!chip || !card))
return -EINVAL;
- card = chip->card;
-
strcpy(card->mixername, snd_es1688_chip_id(chip));
for (idx = 0; idx < ARRAY_SIZE(snd_es1688_controls); idx++) {
diff --git a/sound/isa/gus/gusextreme.c b/sound/isa/gus/gusextreme.c
index 65e4b18..008e8e5 100644
--- a/sound/isa/gus/gusextreme.c
+++ b/sound/isa/gus/gusextreme.c
@@ -95,7 +95,7 @@ static int __devinit snd_gusextreme_match(struct device *dev, unsigned int n)
}
static int __devinit snd_gusextreme_es1688_create(struct snd_card *card,
- struct device *dev, unsigned int n, struct snd_es1688 **rchip)
+ struct snd_es1688 *chip, struct device *dev, unsigned int n)
{
static long possible_ports[] = {0x220, 0x240, 0x260};
static int possible_irqs[] = {5, 9, 10, 7, -1};
@@ -119,14 +119,14 @@ static int __devinit snd_gusextreme_es1688_create(struct snd_card *card,
}
if (port[n] != SNDRV_AUTO_PORT)
- return snd_es1688_create(card, port[n], mpu_port[n], irq[n],
- mpu_irq[n], dma8[n], ES1688_HW_1688, rchip);
+ return snd_es1688_create(card, chip, port[n], mpu_port[n],
+ irq[n], mpu_irq[n], dma8[n], ES1688_HW_1688);
i = 0;
do {
port[n] = possible_ports[i];
- error = snd_es1688_create(card, port[n], mpu_port[n], irq[n],
- mpu_irq[n], dma8[n], ES1688_HW_1688, rchip);
+ error = snd_es1688_create(card, chip, port[n], mpu_port[n],
+ irq[n], mpu_irq[n], dma8[n], ES1688_HW_1688);
} while (error < 0 && ++i < ARRAY_SIZE(possible_ports));
return error;
@@ -206,9 +206,8 @@ static int __devinit snd_gusextreme_detect(struct snd_gus_card *gus,
return 0;
}
-static int __devinit snd_gusextreme_mixer(struct snd_es1688 *chip)
+static int __devinit snd_gusextreme_mixer(struct snd_card *card)
{
- struct snd_card *card = chip->card;
struct snd_ctl_elem_id id1, id2;
int error;
@@ -241,17 +240,20 @@ static int __devinit snd_gusextreme_probe(struct device *dev, unsigned int n)
struct snd_opl3 *opl3;
int error;
- error = snd_card_create(index[n], id[n], THIS_MODULE, 0, &card);
+ error = snd_card_create(index[n], id[n], THIS_MODULE,
+ sizeof(struct snd_es1688), &card);
if (error < 0)
return error;
+ es1688 = card->private_data;
+
if (mpu_port[n] == SNDRV_AUTO_PORT)
mpu_port[n] = 0;
if (mpu_irq[n] > 15)
mpu_irq[n] = -1;
- error = snd_gusextreme_es1688_create(card, dev, n, &es1688);
+ error = snd_gusextreme_es1688_create(card, es1688, dev, n);
if (error < 0)
goto out;
@@ -280,11 +282,11 @@ static int __devinit snd_gusextreme_probe(struct device *dev, unsigned int n)
}
gus->codec_flag = 1;
- error = snd_es1688_pcm(es1688, 0, NULL);
+ error = snd_es1688_pcm(card, es1688, 0, NULL);
if (error < 0)
goto out;
- error = snd_es1688_mixer(es1688);
+ error = snd_es1688_mixer(card, es1688);
if (error < 0)
goto out;
@@ -300,7 +302,7 @@ static int __devinit snd_gusextreme_probe(struct device *dev, unsigned int n)
if (error < 0)
goto out;
- error = snd_gusextreme_mixer(es1688);
+ error = snd_gusextreme_mixer(card);
if (error < 0)
goto out;
--
1.6.4
----------------------------------------------------------------------
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