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linux/sound/pci/vx222/vx222.c
Takashi Iwai 5f976f5891 ALSA: vx222: Use container_of() 
The vx222 driver is using the explicit cast from the parent class
pointer, but it'll be broken when the structure field randomization is
applied.  Use container_of() in a modern manner, instead.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-05-15 11:21:05 +02:00

293 lines
7.0 KiB
C
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/*
* Driver for Digigram VX222 V2/Mic PCI soundcards
*
* Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
*
* 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/init.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include "vx222.h"
#define CARD_NAME "VX222"
MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
MODULE_DESCRIPTION("Digigram VX222 V2/Mic");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Digigram," CARD_NAME "}}");
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
static bool mic[SNDRV_CARDS]; /* microphone */
static int ibl[SNDRV_CARDS]; /* microphone */
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for Digigram " CARD_NAME " soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for Digigram " CARD_NAME " soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable Digigram " CARD_NAME " soundcard.");
module_param_array(mic, bool, NULL, 0444);
MODULE_PARM_DESC(mic, "Enable Microphone.");
module_param_array(ibl, int, NULL, 0444);
MODULE_PARM_DESC(ibl, "Capture IBL size.");
/*
*/
enum {
VX_PCI_VX222_OLD,
VX_PCI_VX222_NEW
};
static const struct pci_device_id snd_vx222_ids[] = {
{ 0x10b5, 0x9050, 0x1369, PCI_ANY_ID, 0, 0, VX_PCI_VX222_OLD, }, /* PLX */
{ 0x10b5, 0x9030, 0x1369, PCI_ANY_ID, 0, 0, VX_PCI_VX222_NEW, }, /* PLX */
{ 0, }
};
MODULE_DEVICE_TABLE(pci, snd_vx222_ids);
/*
*/
static const DECLARE_TLV_DB_SCALE(db_scale_old_vol, -11350, 50, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_akm, -7350, 50, 0);
static struct snd_vx_hardware vx222_old_hw = {
.name = "VX222/Old",
.type = VX_TYPE_BOARD,
/* hw specs */
.num_codecs = 1,
.num_ins = 1,
.num_outs = 1,
.output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
.output_level_db_scale = db_scale_old_vol,
};
static struct snd_vx_hardware vx222_v2_hw = {
.name = "VX222/v2",
.type = VX_TYPE_V2,
/* hw specs */
.num_codecs = 1,
.num_ins = 1,
.num_outs = 1,
.output_level_max = VX2_AKM_LEVEL_MAX,
.output_level_db_scale = db_scale_akm,
};
static struct snd_vx_hardware vx222_mic_hw = {
.name = "VX222/Mic",
.type = VX_TYPE_MIC,
/* hw specs */
.num_codecs = 1,
.num_ins = 1,
.num_outs = 1,
.output_level_max = VX2_AKM_LEVEL_MAX,
.output_level_db_scale = db_scale_akm,
};
/*
*/
static int snd_vx222_free(struct vx_core *chip)
{
struct snd_vx222 *vx = to_vx222(chip);
if (chip->irq >= 0)
free_irq(chip->irq, (void*)chip);
if (vx->port[0])
pci_release_regions(vx->pci);
pci_disable_device(vx->pci);
kfree(chip);
return 0;
}
static int snd_vx222_dev_free(struct snd_device *device)
{
struct vx_core *chip = device->device_data;
return snd_vx222_free(chip);
}
static int snd_vx222_create(struct snd_card *card, struct pci_dev *pci,
struct snd_vx_hardware *hw,
struct snd_vx222 **rchip)
{
struct vx_core *chip;
struct snd_vx222 *vx;
int i, err;
static struct snd_device_ops ops = {
.dev_free = snd_vx222_dev_free,
};
struct snd_vx_ops *vx_ops;
/* enable PCI device */
if ((err = pci_enable_device(pci)) < 0)
return err;
pci_set_master(pci);
vx_ops = hw->type == VX_TYPE_BOARD ? &vx222_old_ops : &vx222_ops;
chip = snd_vx_create(card, hw, vx_ops,
sizeof(struct snd_vx222) - sizeof(struct vx_core));
if (! chip) {
pci_disable_device(pci);
return -ENOMEM;
}
vx = to_vx222(chip);
vx->pci = pci;
if ((err = pci_request_regions(pci, CARD_NAME)) < 0) {
snd_vx222_free(chip);
return err;
}
for (i = 0; i < 2; i++)
vx->port[i] = pci_resource_start(pci, i + 1);
if (request_threaded_irq(pci->irq, snd_vx_irq_handler,
snd_vx_threaded_irq_handler, IRQF_SHARED,
KBUILD_MODNAME, chip)) {
dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
snd_vx222_free(chip);
return -EBUSY;
}
chip->irq = pci->irq;
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
snd_vx222_free(chip);
return err;
}
*rchip = vx;
return 0;
}
static int snd_vx222_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
static int dev;
struct snd_card *card;
struct snd_vx_hardware *hw;
struct snd_vx222 *vx;
int err;
if (dev >= SNDRV_CARDS)
return -ENODEV;
if (!enable[dev]) {
dev++;
return -ENOENT;
}
err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
0, &card);
if (err < 0)
return err;
switch ((int)pci_id->driver_data) {
case VX_PCI_VX222_OLD:
hw = &vx222_old_hw;
break;
case VX_PCI_VX222_NEW:
default:
if (mic[dev])
hw = &vx222_mic_hw;
else
hw = &vx222_v2_hw;
break;
}
if ((err = snd_vx222_create(card, pci, hw, &vx)) < 0) {
snd_card_free(card);
return err;
}
card->private_data = vx;
vx->core.ibl.size = ibl[dev];
sprintf(card->longname, "%s at 0x%lx & 0x%lx, irq %i",
card->shortname, vx->port[0], vx->port[1], vx->core.irq);
dev_dbg(card->dev, "%s at 0x%lx & 0x%lx, irq %i\n",
card->shortname, vx->port[0], vx->port[1], vx->core.irq);
#ifdef SND_VX_FW_LOADER
vx->core.dev = &pci->dev;
#endif
if ((err = snd_vx_setup_firmware(&vx->core)) < 0) {
snd_card_free(card);
return err;
}
if ((err = snd_card_register(card)) < 0) {
snd_card_free(card);
return err;
}
pci_set_drvdata(pci, card);
dev++;
return 0;
}
static void snd_vx222_remove(struct pci_dev *pci)
{
snd_card_free(pci_get_drvdata(pci));
}
#ifdef CONFIG_PM_SLEEP
static int snd_vx222_suspend(struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct snd_vx222 *vx = card->private_data;
return snd_vx_suspend(&vx->core);
}
static int snd_vx222_resume(struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct snd_vx222 *vx = card->private_data;
return snd_vx_resume(&vx->core);
}
static SIMPLE_DEV_PM_OPS(snd_vx222_pm, snd_vx222_suspend, snd_vx222_resume);
#define SND_VX222_PM_OPS &snd_vx222_pm
#else
#define SND_VX222_PM_OPS NULL
#endif
static struct pci_driver vx222_driver = {
.name = KBUILD_MODNAME,
.id_table = snd_vx222_ids,
.probe = snd_vx222_probe,
.remove = snd_vx222_remove,
.driver = {
.pm = SND_VX222_PM_OPS,
},
};
module_pci_driver(vx222_driver);
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