Both snd_vx_hardware and snd_vx_ops are only referred without modification, hence they can be constified gracefully for further optimizations. There should be no functional changes by this patch. Link: https://lore.kernel.org/r/20200103081714.9560-31-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
		
			
				
	
	
		
			281 lines
		
	
	
		
			6.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			281 lines
		
	
	
		
			6.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| // SPDX-License-Identifier: GPL-2.0-or-later
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| /*
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|  * Driver for Digigram VX222 V2/Mic PCI soundcards
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|  *
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|  * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
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|  */
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| 
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| #include <linux/init.h>
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| #include <linux/interrupt.h>
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| #include <linux/pci.h>
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| #include <linux/slab.h>
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| #include <linux/module.h>
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| #include <sound/core.h>
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| #include <sound/initval.h>
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| #include <sound/tlv.h>
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| #include "vx222.h"
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| 
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| #define CARD_NAME "VX222"
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| 
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| MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
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| MODULE_DESCRIPTION("Digigram VX222 V2/Mic");
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| MODULE_LICENSE("GPL");
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| MODULE_SUPPORTED_DEVICE("{{Digigram," CARD_NAME "}}");
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| 
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| static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
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| static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
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| static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
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| static bool mic[SNDRV_CARDS]; /* microphone */
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| static int ibl[SNDRV_CARDS]; /* microphone */
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| 
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| module_param_array(index, int, NULL, 0444);
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| MODULE_PARM_DESC(index, "Index value for Digigram " CARD_NAME " soundcard.");
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| module_param_array(id, charp, NULL, 0444);
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| MODULE_PARM_DESC(id, "ID string for Digigram " CARD_NAME " soundcard.");
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| module_param_array(enable, bool, NULL, 0444);
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| MODULE_PARM_DESC(enable, "Enable Digigram " CARD_NAME " soundcard.");
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| module_param_array(mic, bool, NULL, 0444);
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| MODULE_PARM_DESC(mic, "Enable Microphone.");
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| module_param_array(ibl, int, NULL, 0444);
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| MODULE_PARM_DESC(ibl, "Capture IBL size.");
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| 
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| /*
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|  */
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| 
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| enum {
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| 	VX_PCI_VX222_OLD,
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| 	VX_PCI_VX222_NEW
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| };
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| 
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| static const struct pci_device_id snd_vx222_ids[] = {
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| 	{ 0x10b5, 0x9050, 0x1369, PCI_ANY_ID, 0, 0, VX_PCI_VX222_OLD, },   /* PLX */
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| 	{ 0x10b5, 0x9030, 0x1369, PCI_ANY_ID, 0, 0, VX_PCI_VX222_NEW, },   /* PLX */
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| 	{ 0, }
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| };
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| 
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| MODULE_DEVICE_TABLE(pci, snd_vx222_ids);
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| 
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| 
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| /*
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|  */
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| 
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| static const DECLARE_TLV_DB_SCALE(db_scale_old_vol, -11350, 50, 0);
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| static const DECLARE_TLV_DB_SCALE(db_scale_akm, -7350, 50, 0);
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| 
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| static const struct snd_vx_hardware vx222_old_hw = {
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| 
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| 	.name = "VX222/Old",
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| 	.type = VX_TYPE_BOARD,
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| 	/* hw specs */
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| 	.num_codecs = 1,
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| 	.num_ins = 1,
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| 	.num_outs = 1,
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| 	.output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
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| 	.output_level_db_scale = db_scale_old_vol,
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| };
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| 
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| static const struct snd_vx_hardware vx222_v2_hw = {
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| 
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| 	.name = "VX222/v2",
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| 	.type = VX_TYPE_V2,
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| 	/* hw specs */
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| 	.num_codecs = 1,
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| 	.num_ins = 1,
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| 	.num_outs = 1,
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| 	.output_level_max = VX2_AKM_LEVEL_MAX,
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| 	.output_level_db_scale = db_scale_akm,
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| };
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| 
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| static const struct snd_vx_hardware vx222_mic_hw = {
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| 
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| 	.name = "VX222/Mic",
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| 	.type = VX_TYPE_MIC,
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| 	/* hw specs */
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| 	.num_codecs = 1,
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| 	.num_ins = 1,
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| 	.num_outs = 1,
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| 	.output_level_max = VX2_AKM_LEVEL_MAX,
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| 	.output_level_db_scale = db_scale_akm,
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| };
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| 
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| 
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| /*
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|  */
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| static int snd_vx222_free(struct vx_core *chip)
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| {
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| 	struct snd_vx222 *vx = to_vx222(chip);
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| 
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| 	if (chip->irq >= 0)
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| 		free_irq(chip->irq, (void*)chip);
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| 	if (vx->port[0])
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| 		pci_release_regions(vx->pci);
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| 	pci_disable_device(vx->pci);
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| 	kfree(chip);
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| 	return 0;
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| }
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| 
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| static int snd_vx222_dev_free(struct snd_device *device)
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| {
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| 	struct vx_core *chip = device->device_data;
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| 	return snd_vx222_free(chip);
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| }
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| 
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| 
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| static int snd_vx222_create(struct snd_card *card, struct pci_dev *pci,
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| 			    const struct snd_vx_hardware *hw,
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| 			    struct snd_vx222 **rchip)
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| {
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| 	struct vx_core *chip;
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| 	struct snd_vx222 *vx;
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| 	int i, err;
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| 	static const struct snd_device_ops ops = {
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| 		.dev_free =	snd_vx222_dev_free,
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| 	};
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| 	const struct snd_vx_ops *vx_ops;
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| 
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| 	/* enable PCI device */
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| 	if ((err = pci_enable_device(pci)) < 0)
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| 		return err;
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| 	pci_set_master(pci);
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| 
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| 	vx_ops = hw->type == VX_TYPE_BOARD ? &vx222_old_ops : &vx222_ops;
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| 	chip = snd_vx_create(card, hw, vx_ops,
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| 			     sizeof(struct snd_vx222) - sizeof(struct vx_core));
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| 	if (! chip) {
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| 		pci_disable_device(pci);
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| 		return -ENOMEM;
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| 	}
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| 	vx = to_vx222(chip);
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| 	vx->pci = pci;
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| 
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| 	if ((err = pci_request_regions(pci, CARD_NAME)) < 0) {
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| 		snd_vx222_free(chip);
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| 		return err;
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| 	}
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| 	for (i = 0; i < 2; i++)
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| 		vx->port[i] = pci_resource_start(pci, i + 1);
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| 
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| 	if (request_threaded_irq(pci->irq, snd_vx_irq_handler,
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| 				 snd_vx_threaded_irq_handler, IRQF_SHARED,
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| 				 KBUILD_MODNAME, chip)) {
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| 		dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
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| 		snd_vx222_free(chip);
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| 		return -EBUSY;
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| 	}
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| 	chip->irq = pci->irq;
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| 	card->sync_irq = chip->irq;
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| 
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| 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
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| 		snd_vx222_free(chip);
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| 		return err;
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| 	}
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| 
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| 	*rchip = vx;
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| 	return 0;
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| }
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| 
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| 
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| static int snd_vx222_probe(struct pci_dev *pci,
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| 			   const struct pci_device_id *pci_id)
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| {
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| 	static int dev;
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| 	struct snd_card *card;
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| 	const struct snd_vx_hardware *hw;
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| 	struct snd_vx222 *vx;
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| 	int err;
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| 
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| 	if (dev >= SNDRV_CARDS)
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| 		return -ENODEV;
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| 	if (!enable[dev]) {
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| 		dev++;
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| 		return -ENOENT;
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| 	}
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| 
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| 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
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| 			   0, &card);
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| 	if (err < 0)
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| 		return err;
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| 
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| 	switch ((int)pci_id->driver_data) {
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| 	case VX_PCI_VX222_OLD:
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| 		hw = &vx222_old_hw;
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| 		break;
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| 	case VX_PCI_VX222_NEW:
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| 	default:
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| 		if (mic[dev])
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| 			hw = &vx222_mic_hw;
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| 		else
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| 			hw = &vx222_v2_hw;
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| 		break;
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| 	}
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| 	if ((err = snd_vx222_create(card, pci, hw, &vx)) < 0) {
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| 		snd_card_free(card);
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| 		return err;
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| 	}
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| 	card->private_data = vx;
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| 	vx->core.ibl.size = ibl[dev];
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| 
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| 	sprintf(card->longname, "%s at 0x%lx & 0x%lx, irq %i",
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| 		card->shortname, vx->port[0], vx->port[1], vx->core.irq);
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| 	dev_dbg(card->dev, "%s at 0x%lx & 0x%lx, irq %i\n",
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| 		    card->shortname, vx->port[0], vx->port[1], vx->core.irq);
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| 
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| #ifdef SND_VX_FW_LOADER
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| 	vx->core.dev = &pci->dev;
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| #endif
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| 
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| 	if ((err = snd_vx_setup_firmware(&vx->core)) < 0) {
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| 		snd_card_free(card);
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| 		return err;
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| 	}
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| 
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| 	if ((err = snd_card_register(card)) < 0) {
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| 		snd_card_free(card);
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| 		return err;
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| 	}
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| 
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| 	pci_set_drvdata(pci, card);
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| 	dev++;
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| 	return 0;
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| }
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| 
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| static void snd_vx222_remove(struct pci_dev *pci)
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| {
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| 	snd_card_free(pci_get_drvdata(pci));
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| }
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| 
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| #ifdef CONFIG_PM_SLEEP
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| static int snd_vx222_suspend(struct device *dev)
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| {
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| 	struct snd_card *card = dev_get_drvdata(dev);
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| 	struct snd_vx222 *vx = card->private_data;
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| 
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| 	return snd_vx_suspend(&vx->core);
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| }
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| 
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| static int snd_vx222_resume(struct device *dev)
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| {
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| 	struct snd_card *card = dev_get_drvdata(dev);
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| 	struct snd_vx222 *vx = card->private_data;
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| 
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| 	return snd_vx_resume(&vx->core);
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| }
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| 
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| static SIMPLE_DEV_PM_OPS(snd_vx222_pm, snd_vx222_suspend, snd_vx222_resume);
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| #define SND_VX222_PM_OPS	&snd_vx222_pm
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| #else
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| #define SND_VX222_PM_OPS	NULL
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| #endif
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| 
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| static struct pci_driver vx222_driver = {
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| 	.name = KBUILD_MODNAME,
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| 	.id_table = snd_vx222_ids,
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| 	.probe = snd_vx222_probe,
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| 	.remove = snd_vx222_remove,
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| 	.driver = {
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| 		.pm = SND_VX222_PM_OPS,
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| 	},
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| };
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| 
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| module_pci_driver(vx222_driver);
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