sound/pcmcia/vx/vxpocket.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Driver for Digigram VXpocket V2/440 soundcards
  *
  * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>

  */


 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <sound/core.h>
 #include "vxpocket.h"
 #include <pcmcia/ciscode.h>
 #include <pcmcia/cisreg.h>
 #include <sound/initval.h>
 #include <sound/tlv.h>

 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
 MODULE_DESCRIPTION("Digigram VXPocket");
 MODULE_LICENSE("GPL");

 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 switches */
 static int ibl[SNDRV_CARDS];

 module_param_array(index, int, NULL, 0444);
 MODULE_PARM_DESC(index, "Index value for VXPocket soundcard.");
 module_param_array(id, charp, NULL, 0444);
 MODULE_PARM_DESC(id, "ID string for VXPocket soundcard.");
 module_param_array(enable, bool, NULL, 0444);
 MODULE_PARM_DESC(enable, "Enable VXPocket soundcard.");
 module_param_array(ibl, int, NULL, 0444);
 MODULE_PARM_DESC(ibl, "Capture IBL size for VXPocket soundcard.");


 /*
  */

 static unsigned int card_alloc;


 /*
  */
 static void vxpocket_release(struct pcmcia_device *link)
 {
 	free_irq(link->irq, link->priv);
 	pcmcia_disable_device(link);
 }

 /*
  * Hardware information
  */

 /* VX-pocket V2
  *
  * 1 DSP, 1 sync UER
  * 1 programmable clock (NIY)
  * 1 stereo analog input (line/micro)
  * 1 stereo analog output
  * Only output levels can be modified
  */

 static const DECLARE_TLV_DB_SCALE(db_scale_old_vol, -11350, 50, 0);

 static const struct snd_vx_hardware vxpocket_hw = {
 	.name = "VXPocket",
 	.type = VX_TYPE_VXPOCKET,

 	/* hardware 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,
 };

 /* VX-pocket 440
  *
  * 1 DSP, 1 sync UER, 1 sync World Clock (NIY)
  * SMPTE (NIY)
  * 2 stereo analog input (line/micro)
  * 2 stereo analog output
  * Only output levels can be modified
  * UER, but only for the first two inputs and outputs.
  */

 static const struct snd_vx_hardware vxp440_hw = {
 	.name = "VXPocket440",
 	.type = VX_TYPE_VXP440,

 	/* hardware specs */
 	.num_codecs = 2,
 	.num_ins = 2,
 	.num_outs = 2,
 	.output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
 	.output_level_db_scale = db_scale_old_vol,
 };


 /*
  * create vxpocket instance
  */
 static int snd_vxpocket_new(struct snd_card *card, int ibl,
 			    struct pcmcia_device *link,
 			    struct snd_vxpocket **chip_ret)
 {
 	struct vx_core *chip;
 	struct snd_vxpocket *vxp;

 	chip = snd_vx_create(card, &vxpocket_hw, &snd_vxpocket_ops,
 			     sizeof(struct snd_vxpocket) - sizeof(struct vx_core));
 	if (!chip)
 		return -ENOMEM;

 	chip->ibl.size = ibl;

 	vxp = to_vxpocket(chip);

 	vxp->p_dev = link;
 	link->priv = chip;

 	link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
 	link->resource[0]->end = 16;

 	link->config_flags |= CONF_ENABLE_IRQ;
 	link->config_index = 1;
 	link->config_regs = PRESENT_OPTION;

 	*chip_ret = vxp;
 	return 0;
 }


 /**
  * snd_vxpocket_assign_resources - initialize the hardware and card instance.
  * @chip: VX core instance
  * @port: i/o port for the card
  * @irq: irq number for the card
  *
  * this function assigns the specified port and irq, boot the card,
  * create pcm and control instances, and initialize the rest hardware.
  *
  * returns 0 if successful, or a negative error code.
  */
 static int snd_vxpocket_assign_resources(struct vx_core *chip, int port, int irq)
 {
 	int err;
 	struct snd_card *card = chip->card;
 	struct snd_vxpocket *vxp = to_vxpocket(chip);

 	dev_dbg(chip->card->dev,
 		"vxpocket assign resources: port = 0x%x, irq = %d\n", port, irq);
 	vxp->port = port;

 	sprintf(card->shortname, "Digigram %s", card->driver);
 	sprintf(card->longname, "%s at 0x%x, irq %i",
 		card->shortname, port, irq);

 	chip->irq = irq;
 	card->sync_irq = chip->irq;

 	err = snd_vx_setup_firmware(chip);
 	if (err < 0)
 		return err;

 	return 0;
 }


 /*
  * configuration callback
  */

 static int vxpocket_config(struct pcmcia_device *link)
 {
 	struct vx_core *chip = link->priv;
 	int ret;

 	/* redefine hardware record according to the VERSION1 string */
 	if (!strcmp(link->prod_id[1], "VX-POCKET")) {
 		dev_dbg(chip->card->dev, "VX-pocket is detected\n");
 	} else {
 		dev_dbg(chip->card->dev, "VX-pocket 440 is detected\n");
 		/* overwrite the hardware information */
 		chip->hw = &vxp440_hw;
 		chip->type = vxp440_hw.type;
 		strcpy(chip->card->driver, vxp440_hw.name);
 	}

 	ret = pcmcia_request_io(link);
 	if (ret)
 		goto failed_preirq;

 	ret = request_threaded_irq(link->irq, snd_vx_irq_handler,
 				   snd_vx_threaded_irq_handler,
 				   IRQF_SHARED, link->devname, link->priv);
 	if (ret)
 		goto failed_preirq;

 	ret = pcmcia_enable_device(link);
 	if (ret)
 		goto failed;

 	if (snd_vxpocket_assign_resources(chip, link->resource[0]->start,
 						link->irq) < 0)
 		goto failed;

 	return 0;

  failed:
 	free_irq(link->irq, link->priv);
 failed_preirq:
 	pcmcia_disable_device(link);
 	return -ENODEV;
 }

 #ifdef CONFIG_PM

 static int vxp_suspend(struct pcmcia_device *link)
 {
 	struct vx_core *chip = link->priv;

 	if (chip)
 		snd_vx_suspend(chip);

 	return 0;
 }

 static int vxp_resume(struct pcmcia_device *link)
 {
 	struct vx_core *chip = link->priv;

 	if (pcmcia_dev_present(link)) {
 		if (chip)
 			snd_vx_resume(chip);
 	}

 	return 0;
 }

 #endif


 /*
  */
 static int vxpocket_probe(struct pcmcia_device *p_dev)
 {
 	struct snd_card *card;
 	struct snd_vxpocket *vxp;
 	int i, err;

 	/* find an empty slot from the card list */
 	for (i = 0; i < SNDRV_CARDS; i++) {
 		if (!(card_alloc & (1 << i)))
 			break;
 	}
 	if (i >= SNDRV_CARDS) {
 		dev_err(&p_dev->dev, "vxpocket: too many cards found\n");
 		return -EINVAL;
 	}
 	if (! enable[i])
 		return -ENODEV; /* disabled explicitly */

 	/* ok, create a card instance */
 	err = snd_card_new(&p_dev->dev, index[i], id[i], THIS_MODULE,
 			   0, &card);
 	if (err < 0) {
 		dev_err(&p_dev->dev, "vxpocket: cannot create a card instance\n");
 		return err;
 	}

 	err = snd_vxpocket_new(card, ibl[i], p_dev, &vxp);
 	if (err < 0) {
 		snd_card_free(card);
 		return err;
 	}
 	card->private_data = vxp;

 	vxp->index = i;
 	card_alloc |= 1 << i;

 	vxp->p_dev = p_dev;

 	return vxpocket_config(p_dev);
 }

 static void vxpocket_detach(struct pcmcia_device *link)
 {
 	struct snd_vxpocket *vxp;
 	struct vx_core *chip;

 	if (! link)
 		return;

 	vxp = link->priv;
 	chip = (struct vx_core *)vxp;
 	card_alloc &= ~(1 << vxp->index);

 	chip->chip_status |= VX_STAT_IS_STALE; /* to be sure */
 	snd_card_disconnect(chip->card);
 	vxpocket_release(link);
 	snd_card_free_when_closed(chip->card);
 }

 /*
  * Module entry points
  */

 static const struct pcmcia_device_id vxp_ids[] = {
 	PCMCIA_DEVICE_MANF_CARD(0x01f1, 0x0100),
 	PCMCIA_DEVICE_NULL
 };
 MODULE_DEVICE_TABLE(pcmcia, vxp_ids);

 static struct pcmcia_driver vxp_cs_driver = {
 	.owner		= THIS_MODULE,
 	.name		= "snd-vxpocket",
 	.probe		= vxpocket_probe,
 	.remove		= vxpocket_detach,
 	.id_table	= vxp_ids,
 #ifdef CONFIG_PM
 	.suspend	= vxp_suspend,
 	.resume		= vxp_resume,
 #endif
 };
 module_pcmcia_driver(vxp_cs_driver);
	// SPDX-License-Identifier: GPL-2.0-or-later
	/*
	* Driver for Digigram VXpocket V2/440 soundcards
	*
	* Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>

	*/


	#include <linux/init.h>
	#include <linux/module.h>
	#include <linux/slab.h>
	#include <sound/core.h>
	#include "vxpocket.h"
	#include <pcmcia/ciscode.h>
	#include <pcmcia/cisreg.h>
	#include <sound/initval.h>
	#include <sound/tlv.h>

	MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
	MODULE_DESCRIPTION("Digigram VXPocket");
	MODULE_LICENSE("GPL");

	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 switches */
	static int ibl[SNDRV_CARDS];

	module_param_array(index, int, NULL, 0444);
	MODULE_PARM_DESC(index, "Index value for VXPocket soundcard.");
	module_param_array(id, charp, NULL, 0444);
	MODULE_PARM_DESC(id, "ID string for VXPocket soundcard.");
	module_param_array(enable, bool, NULL, 0444);
	MODULE_PARM_DESC(enable, "Enable VXPocket soundcard.");
	module_param_array(ibl, int, NULL, 0444);
	MODULE_PARM_DESC(ibl, "Capture IBL size for VXPocket soundcard.");


	/*
	*/

	static unsigned int card_alloc;


	/*
	*/
	static void vxpocket_release(struct pcmcia_device *link)
	{
	free_irq(link->irq, link->priv);
	pcmcia_disable_device(link);
	}

	/*
	* Hardware information
	*/

	/* VX-pocket V2
	*
	* 1 DSP, 1 sync UER
	* 1 programmable clock (NIY)
	* 1 stereo analog input (line/micro)
	* 1 stereo analog output
	* Only output levels can be modified
	*/

	static const DECLARE_TLV_DB_SCALE(db_scale_old_vol, -11350, 50, 0);

	static const struct snd_vx_hardware vxpocket_hw = {
	.name = "VXPocket",
	.type = VX_TYPE_VXPOCKET,

	/* hardware 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,
	};

	/* VX-pocket 440
	*
	* 1 DSP, 1 sync UER, 1 sync World Clock (NIY)
	* SMPTE (NIY)
	* 2 stereo analog input (line/micro)
	* 2 stereo analog output
	* Only output levels can be modified
	* UER, but only for the first two inputs and outputs.
	*/

	static const struct snd_vx_hardware vxp440_hw = {
	.name = "VXPocket440",
	.type = VX_TYPE_VXP440,

	/* hardware specs */
	.num_codecs = 2,
	.num_ins = 2,
	.num_outs = 2,
	.output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
	.output_level_db_scale = db_scale_old_vol,
	};


	/*
	* create vxpocket instance
	*/
	static int snd_vxpocket_new(struct snd_card *card, int ibl,
	struct pcmcia_device *link,
	struct snd_vxpocket **chip_ret)
	{
	struct vx_core *chip;
	struct snd_vxpocket *vxp;

	chip = snd_vx_create(card, &vxpocket_hw, &snd_vxpocket_ops,
	sizeof(struct snd_vxpocket) - sizeof(struct vx_core));
	if (!chip)
	return -ENOMEM;

	chip->ibl.size = ibl;

	vxp = to_vxpocket(chip);

	vxp->p_dev = link;
	link->priv = chip;

	link->resource[0]->flags \|= IO_DATA_PATH_WIDTH_AUTO;
	link->resource[0]->end = 16;

	link->config_flags \|= CONF_ENABLE_IRQ;
	link->config_index = 1;
	link->config_regs = PRESENT_OPTION;

	*chip_ret = vxp;
	return 0;
	}


	/**
	* snd_vxpocket_assign_resources - initialize the hardware and card instance.
	* @chip: VX core instance
	* @port: i/o port for the card
	* @irq: irq number for the card
	*
	* this function assigns the specified port and irq, boot the card,
	* create pcm and control instances, and initialize the rest hardware.
	*
	* returns 0 if successful, or a negative error code.
	*/
	static int snd_vxpocket_assign_resources(struct vx_core *chip, int port, int irq)
	{
	int err;
	struct snd_card *card = chip->card;
	struct snd_vxpocket *vxp = to_vxpocket(chip);

	dev_dbg(chip->card->dev,
	"vxpocket assign resources: port = 0x%x, irq = %d\n", port, irq);
	vxp->port = port;

	sprintf(card->shortname, "Digigram %s", card->driver);
	sprintf(card->longname, "%s at 0x%x, irq %i",
	card->shortname, port, irq);

	chip->irq = irq;
	card->sync_irq = chip->irq;

	err = snd_vx_setup_firmware(chip);
	if (err < 0)
	return err;

	return 0;
	}


	/*
	* configuration callback
	*/

	static int vxpocket_config(struct pcmcia_device *link)
	{
	struct vx_core *chip = link->priv;
	int ret;

	/* redefine hardware record according to the VERSION1 string */
	if (!strcmp(link->prod_id[1], "VX-POCKET")) {
	dev_dbg(chip->card->dev, "VX-pocket is detected\n");
	} else {
	dev_dbg(chip->card->dev, "VX-pocket 440 is detected\n");
	/* overwrite the hardware information */
	chip->hw = &vxp440_hw;
	chip->type = vxp440_hw.type;
	strcpy(chip->card->driver, vxp440_hw.name);
	}

	ret = pcmcia_request_io(link);
	if (ret)
	goto failed_preirq;

	ret = request_threaded_irq(link->irq, snd_vx_irq_handler,
	snd_vx_threaded_irq_handler,
	IRQF_SHARED, link->devname, link->priv);
	if (ret)
	goto failed_preirq;

	ret = pcmcia_enable_device(link);
	if (ret)
	goto failed;

	if (snd_vxpocket_assign_resources(chip, link->resource[0]->start,
	link->irq) < 0)
	goto failed;

	return 0;

	failed:
	free_irq(link->irq, link->priv);
	failed_preirq:
	pcmcia_disable_device(link);
	return -ENODEV;
	}

	#ifdef CONFIG_PM

	static int vxp_suspend(struct pcmcia_device *link)
	{
	struct vx_core *chip = link->priv;

	if (chip)
	snd_vx_suspend(chip);

	return 0;
	}

	static int vxp_resume(struct pcmcia_device *link)
	{
	struct vx_core *chip = link->priv;

	if (pcmcia_dev_present(link)) {
	if (chip)
	snd_vx_resume(chip);
	}

	return 0;
	}

	#endif


	/*
	*/
	static int vxpocket_probe(struct pcmcia_device *p_dev)
	{
	struct snd_card *card;
	struct snd_vxpocket *vxp;
	int i, err;

	/* find an empty slot from the card list */
	for (i = 0; i < SNDRV_CARDS; i++) {
	if (!(card_alloc & (1 << i)))
	break;
	}
	if (i >= SNDRV_CARDS) {
	dev_err(&p_dev->dev, "vxpocket: too many cards found\n");
	return -EINVAL;
	}
	if (! enable[i])
	return -ENODEV; /* disabled explicitly */

	/* ok, create a card instance */
	err = snd_card_new(&p_dev->dev, index[i], id[i], THIS_MODULE,
	0, &card);
	if (err < 0) {
	dev_err(&p_dev->dev, "vxpocket: cannot create a card instance\n");
	return err;
	}

	err = snd_vxpocket_new(card, ibl[i], p_dev, &vxp);
	if (err < 0) {
	snd_card_free(card);
	return err;
	}
	card->private_data = vxp;

	vxp->index = i;
	card_alloc \|= 1 << i;

	vxp->p_dev = p_dev;

	return vxpocket_config(p_dev);
	}

	static void vxpocket_detach(struct pcmcia_device *link)
	{
	struct snd_vxpocket *vxp;
	struct vx_core *chip;

	if (! link)
	return;

	vxp = link->priv;
	chip = (struct vx_core *)vxp;
	card_alloc &= ~(1 << vxp->index);

	chip->chip_status \|= VX_STAT_IS_STALE; /* to be sure */
	snd_card_disconnect(chip->card);
	vxpocket_release(link);
	snd_card_free_when_closed(chip->card);
	}

	/*
	* Module entry points
	*/

	static const struct pcmcia_device_id vxp_ids[] = {
	PCMCIA_DEVICE_MANF_CARD(0x01f1, 0x0100),
	PCMCIA_DEVICE_NULL
	};
	MODULE_DEVICE_TABLE(pcmcia, vxp_ids);

	static struct pcmcia_driver vxp_cs_driver = {
	.owner = THIS_MODULE,
	.name = "snd-vxpocket",
	.probe = vxpocket_probe,
	.remove = vxpocket_detach,
	.id_table = vxp_ids,
	#ifdef CONFIG_PM
	.suspend = vxp_suspend,
	.resume = vxp_resume,
	#endif
	};
	module_pcmcia_driver(vxp_cs_driver);