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292 lines
6.5 KiB
292 lines
6.5 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Driver for Sound Core PDAudioCF soundcard |
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* |
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* Copyright (c) 2003 by Jaroslav Kysela <[email protected]> |
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*/ |
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#include <sound/core.h> |
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#include <linux/slab.h> |
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#include <linux/module.h> |
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#include <pcmcia/ciscode.h> |
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#include <pcmcia/cisreg.h> |
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#include "pdaudiocf.h" |
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#include <sound/initval.h> |
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#include <linux/init.h> |
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/* |
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*/ |
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#define CARD_NAME "PDAudio-CF" |
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MODULE_AUTHOR("Jaroslav Kysela <[email protected]>"); |
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MODULE_DESCRIPTION("Sound Core " CARD_NAME); |
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MODULE_LICENSE("GPL"); |
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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 switches */ |
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module_param_array(index, int, NULL, 0444); |
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MODULE_PARM_DESC(index, "Index value for " 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 " CARD_NAME " soundcard."); |
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module_param_array(enable, bool, NULL, 0444); |
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MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard."); |
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/* |
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*/ |
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static struct snd_card *card_list[SNDRV_CARDS]; |
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/* |
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* prototypes |
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*/ |
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static int pdacf_config(struct pcmcia_device *link); |
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static void snd_pdacf_detach(struct pcmcia_device *p_dev); |
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static void pdacf_release(struct pcmcia_device *link) |
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{ |
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free_irq(link->irq, link->priv); |
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pcmcia_disable_device(link); |
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} |
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/* |
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* destructor |
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*/ |
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static int snd_pdacf_free(struct snd_pdacf *pdacf) |
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{ |
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struct pcmcia_device *link = pdacf->p_dev; |
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pdacf_release(link); |
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card_list[pdacf->index] = NULL; |
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pdacf->card = NULL; |
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kfree(pdacf); |
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return 0; |
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} |
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static int snd_pdacf_dev_free(struct snd_device *device) |
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{ |
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struct snd_pdacf *chip = device->device_data; |
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return snd_pdacf_free(chip); |
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} |
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/* |
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* snd_pdacf_attach - attach callback for cs |
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*/ |
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static int snd_pdacf_probe(struct pcmcia_device *link) |
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{ |
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int i, err; |
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struct snd_pdacf *pdacf; |
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struct snd_card *card; |
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static const struct snd_device_ops ops = { |
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.dev_free = snd_pdacf_dev_free, |
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}; |
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snd_printdd(KERN_DEBUG "pdacf_attach called\n"); |
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/* find an empty slot from the card list */ |
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for (i = 0; i < SNDRV_CARDS; i++) { |
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if (! card_list[i]) |
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break; |
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} |
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if (i >= SNDRV_CARDS) { |
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snd_printk(KERN_ERR "pdacf: too many cards found\n"); |
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return -EINVAL; |
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} |
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if (! enable[i]) |
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return -ENODEV; /* disabled explicitly */ |
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/* ok, create a card instance */ |
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err = snd_card_new(&link->dev, index[i], id[i], THIS_MODULE, |
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0, &card); |
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if (err < 0) { |
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snd_printk(KERN_ERR "pdacf: cannot create a card instance\n"); |
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return err; |
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} |
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pdacf = snd_pdacf_create(card); |
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if (!pdacf) { |
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snd_card_free(card); |
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return -ENOMEM; |
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} |
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err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, pdacf, &ops); |
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if (err < 0) { |
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kfree(pdacf); |
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snd_card_free(card); |
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return err; |
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} |
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pdacf->index = i; |
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card_list[i] = card; |
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pdacf->p_dev = link; |
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link->priv = pdacf; |
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link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; |
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link->resource[0]->end = 16; |
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link->config_flags = CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ; |
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link->config_index = 1; |
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link->config_regs = PRESENT_OPTION; |
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return pdacf_config(link); |
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} |
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/** |
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* snd_pdacf_assign_resources - initialize the hardware and card instance. |
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* @pdacf: context |
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* @port: i/o port for the card |
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* @irq: irq number for the card |
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* |
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* this function assigns the specified port and irq, boot the card, |
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* create pcm and control instances, and initialize the rest hardware. |
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* |
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* returns 0 if successful, or a negative error code. |
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*/ |
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static int snd_pdacf_assign_resources(struct snd_pdacf *pdacf, int port, int irq) |
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{ |
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int err; |
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struct snd_card *card = pdacf->card; |
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snd_printdd(KERN_DEBUG "pdacf assign resources: port = 0x%x, irq = %d\n", port, irq); |
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pdacf->port = port; |
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pdacf->irq = irq; |
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pdacf->chip_status |= PDAUDIOCF_STAT_IS_CONFIGURED; |
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err = snd_pdacf_ak4117_create(pdacf); |
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if (err < 0) |
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return err; |
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strcpy(card->driver, "PDAudio-CF"); |
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sprintf(card->shortname, "Core Sound %s", card->driver); |
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sprintf(card->longname, "%s at 0x%x, irq %i", |
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card->shortname, port, irq); |
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err = snd_pdacf_pcm_new(pdacf); |
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if (err < 0) |
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return err; |
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err = snd_card_register(card); |
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if (err < 0) |
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return err; |
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return 0; |
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} |
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/* |
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* snd_pdacf_detach - detach callback for cs |
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*/ |
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static void snd_pdacf_detach(struct pcmcia_device *link) |
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{ |
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struct snd_pdacf *chip = link->priv; |
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snd_printdd(KERN_DEBUG "pdacf_detach called\n"); |
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if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED) |
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snd_pdacf_powerdown(chip); |
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chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */ |
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snd_card_disconnect(chip->card); |
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snd_card_free_when_closed(chip->card); |
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} |
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/* |
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* configuration callback |
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*/ |
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static int pdacf_config(struct pcmcia_device *link) |
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{ |
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struct snd_pdacf *pdacf = link->priv; |
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int ret; |
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snd_printdd(KERN_DEBUG "pdacf_config called\n"); |
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link->config_index = 0x5; |
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link->config_flags |= CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ; |
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ret = pcmcia_request_io(link); |
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if (ret) |
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goto failed_preirq; |
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ret = request_threaded_irq(link->irq, pdacf_interrupt, |
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pdacf_threaded_irq, |
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IRQF_SHARED, link->devname, link->priv); |
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if (ret) |
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goto failed_preirq; |
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ret = pcmcia_enable_device(link); |
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if (ret) |
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goto failed; |
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if (snd_pdacf_assign_resources(pdacf, link->resource[0]->start, |
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link->irq) < 0) |
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goto failed; |
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pdacf->card->sync_irq = link->irq; |
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return 0; |
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failed: |
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free_irq(link->irq, link->priv); |
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failed_preirq: |
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pcmcia_disable_device(link); |
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return -ENODEV; |
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} |
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#ifdef CONFIG_PM |
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static int pdacf_suspend(struct pcmcia_device *link) |
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{ |
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struct snd_pdacf *chip = link->priv; |
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snd_printdd(KERN_DEBUG "SUSPEND\n"); |
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if (chip) { |
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snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n"); |
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snd_pdacf_suspend(chip); |
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} |
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return 0; |
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} |
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static int pdacf_resume(struct pcmcia_device *link) |
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{ |
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struct snd_pdacf *chip = link->priv; |
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snd_printdd(KERN_DEBUG "RESUME\n"); |
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if (pcmcia_dev_present(link)) { |
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if (chip) { |
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snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n"); |
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snd_pdacf_resume(chip); |
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} |
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} |
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snd_printdd(KERN_DEBUG "resume done!\n"); |
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return 0; |
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} |
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#endif |
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/* |
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* Module entry points |
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*/ |
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static const struct pcmcia_device_id snd_pdacf_ids[] = { |
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/* this is too general PCMCIA_DEVICE_MANF_CARD(0x015d, 0x4c45), */ |
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PCMCIA_DEVICE_PROD_ID12("Core Sound","PDAudio-CF",0x396d19d2,0x71717b49), |
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PCMCIA_DEVICE_NULL |
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}; |
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MODULE_DEVICE_TABLE(pcmcia, snd_pdacf_ids); |
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static struct pcmcia_driver pdacf_cs_driver = { |
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.owner = THIS_MODULE, |
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.name = "snd-pdaudiocf", |
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.probe = snd_pdacf_probe, |
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.remove = snd_pdacf_detach, |
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.id_table = snd_pdacf_ids, |
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#ifdef CONFIG_PM |
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.suspend = pdacf_suspend, |
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.resume = pdacf_resume, |
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#endif |
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}; |
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module_pcmcia_driver(pdacf_cs_driver);
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