cregit-Linux how code gets into the kernel

Release 4.8 sound/pcmcia/pdaudiocf/pdaudiocf.c

/*
 * Driver for Sound Core PDAudioCF soundcard
 *
 * Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz>
 *
 *   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 <sound/core.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <pcmcia/ciscode.h>
#include <pcmcia/cisreg.h>
#include "pdaudiocf.h"
#include <sound/initval.h>
#include <linux/init.h>

/*
 */


#define CARD_NAME	"PDAudio-CF"

MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_DESCRIPTION("Sound Core " CARD_NAME);
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Sound Core," 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 switches */

module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard.");

/*
 */


static struct snd_card *card_list[SNDRV_CARDS];

/*
 * prototypes
 */
static int pdacf_config(struct pcmcia_device *link);
static void snd_pdacf_detach(struct pcmcia_device *p_dev);


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

Contributors

PersonTokensPropCommitsCommitProp
jaroslav kyselajaroslav kysela1348.15%125.00%
takashi iwaitakashi iwai1140.74%125.00%
dominik brodowskidominik brodowski311.11%250.00%
Total27100.00%4100.00%

/* * destructor */
static int snd_pdacf_free(struct snd_pdacf *pdacf) { struct pcmcia_device *link = pdacf->p_dev; pdacf_release(link); card_list[pdacf->index] = NULL; pdacf->card = NULL; kfree(pdacf); return 0; }

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jaroslav kyselajaroslav kysela4389.58%240.00%
dominik brodowskidominik brodowski36.25%240.00%
takashi iwaitakashi iwai24.17%120.00%
Total48100.00%5100.00%


static int snd_pdacf_dev_free(struct snd_device *device) { struct snd_pdacf *chip = device->device_data; return snd_pdacf_free(chip); }

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jaroslav kyselajaroslav kysela2284.62%266.67%
takashi iwaitakashi iwai415.38%133.33%
Total26100.00%3100.00%

/* * snd_pdacf_attach - attach callback for cs */
static int snd_pdacf_probe(struct pcmcia_device *link) { int i, err; struct snd_pdacf *pdacf; struct snd_card *card; static struct snd_device_ops ops = { .dev_free = snd_pdacf_dev_free, }; snd_printdd(KERN_DEBUG "pdacf_attach called\n"); /* find an empty slot from the card list */ for (i = 0; i < SNDRV_CARDS; i++) { if (! card_list[i]) break; } if (i >= SNDRV_CARDS) { snd_printk(KERN_ERR "pdacf: too many cards found\n"); return -EINVAL; } if (! enable[i]) return -ENODEV; /* disabled explicitly */ /* ok, create a card instance */ err = snd_card_new(&link->dev, index[i], id[i], THIS_MODULE, 0, &card); if (err < 0) { snd_printk(KERN_ERR "pdacf: cannot create a card instance\n"); return err; } pdacf = snd_pdacf_create(card); if (!pdacf) { snd_card_free(card); return -ENOMEM; } err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, pdacf, &ops); if (err < 0) { kfree(pdacf); snd_card_free(card); return err; } pdacf->index = i; card_list[i] = card; pdacf->p_dev = link; link->priv = pdacf; link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; link->resource[0]->end = 16; link->config_flags = CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ; link->config_index = 1; link->config_regs = PRESENT_OPTION; return pdacf_config(link); }

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jaroslav kyselajaroslav kysela20373.55%213.33%
takashi iwaitakashi iwai3713.41%533.33%
dominik brodowskidominik brodowski3613.04%853.33%
Total276100.00%15100.00%

/** * snd_pdacf_assign_resources - initialize the hardware and card 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_pdacf_assign_resources(struct snd_pdacf *pdacf, int port, int irq) { int err; struct snd_card *card = pdacf->card; snd_printdd(KERN_DEBUG "pdacf assign resources: port = 0x%x, irq = %d\n", port, irq); pdacf->port = port; pdacf->irq = irq; pdacf->chip_status |= PDAUDIOCF_STAT_IS_CONFIGURED; err = snd_pdacf_ak4117_create(pdacf); if (err < 0) return err; strcpy(card->driver, "PDAudio-CF"); sprintf(card->shortname, "Core Sound %s", card->driver); sprintf(card->longname, "%s at 0x%x, irq %i", card->shortname, port, irq); err = snd_pdacf_pcm_new(pdacf); if (err < 0) return err; if ((err = snd_card_register(card)) < 0) return err; return 0; }

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jaroslav kyselajaroslav kysela14397.28%266.67%
takashi iwaitakashi iwai42.72%133.33%
Total147100.00%3100.00%

/* * snd_pdacf_detach - detach callback for cs */
static void snd_pdacf_detach(struct pcmcia_device *link) { struct snd_pdacf *chip = link->priv; snd_printdd(KERN_DEBUG "pdacf_detach called\n"); if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED) snd_pdacf_powerdown(chip); chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */ snd_card_disconnect(chip->card); snd_card_free_when_closed(chip->card); }

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jaroslav kyselajaroslav kysela5490.00%233.33%
takashi iwaitakashi iwai35.00%233.33%
dominik brodowskidominik brodowski35.00%233.33%
Total60100.00%6100.00%

/* * configuration callback */
static int pdacf_config(struct pcmcia_device *link) { struct snd_pdacf *pdacf = link->priv; int ret; snd_printdd(KERN_DEBUG "pdacf_config called\n"); link->config_index = 0x5; link->config_flags |= CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ; ret = pcmcia_request_io(link); if (ret) goto failed_preirq; ret = request_threaded_irq(link->irq, pdacf_interrupt, pdacf_threaded_irq, IRQF_SHARED, link->devname, link->priv); if (ret) goto failed_preirq; ret = pcmcia_enable_device(link); if (ret) goto failed; if (snd_pdacf_assign_resources(pdacf, 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; }

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jaroslav kyselajaroslav kysela6643.14%323.08%
dominik brodowskidominik brodowski5535.95%861.54%
takashi iwaitakashi iwai3220.92%215.38%
Total153100.00%13100.00%

#ifdef CONFIG_PM
static int pdacf_suspend(struct pcmcia_device *link) { struct snd_pdacf *chip = link->priv; snd_printdd(KERN_DEBUG "SUSPEND\n"); if (chip) { snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n"); snd_pdacf_suspend(chip); } return 0; }

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jaroslav kyselajaroslav kysela3678.26%125.00%
dominik brodowskidominik brodowski817.39%250.00%
takashi iwaitakashi iwai24.35%125.00%
Total46100.00%4100.00%


static int pdacf_resume(struct pcmcia_device *link) { struct snd_pdacf *chip = link->priv; snd_printdd(KERN_DEBUG "RESUME\n"); if (pcmcia_dev_present(link)) { if (chip) { snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n"); snd_pdacf_resume(chip); } } snd_printdd(KERN_DEBUG "resume done!\n"); return 0; }

Contributors

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jaroslav kyselajaroslav kysela4167.21%125.00%
dominik brodowskidominik brodowski2032.79%375.00%
Total61100.00%4100.00%

#endif /* * Module entry points */ static const struct pcmcia_device_id snd_pdacf_ids[] = { /* this is too general PCMCIA_DEVICE_MANF_CARD(0x015d, 0x4c45), */ PCMCIA_DEVICE_PROD_ID12("Core Sound","PDAudio-CF",0x396d19d2,0x71717b49), PCMCIA_DEVICE_NULL }; MODULE_DEVICE_TABLE(pcmcia, snd_pdacf_ids); static struct pcmcia_driver pdacf_cs_driver = { .owner = THIS_MODULE, .name = "snd-pdaudiocf", .probe = snd_pdacf_probe, .remove = snd_pdacf_detach, .id_table = snd_pdacf_ids, #ifdef CONFIG_PM .suspend = pdacf_suspend, .resume = pdacf_resume, #endif }; module_pcmcia_driver(pdacf_cs_driver);

Overall Contributors

PersonTokensPropCommitsCommitProp
jaroslav kyselajaroslav kysela81272.96%719.44%
dominik brodowskidominik brodowski18516.62%1541.67%
takashi iwaitakashi iwai978.72%719.44%
tony olechtony olech80.72%12.78%
rusty russellrusty russell40.36%25.56%
andrew mortonandrew morton30.27%12.78%
h hartley sweetenh hartley sweeten20.18%12.78%
joe perchesjoe perches10.09%12.78%
paul gortmakerpaul gortmaker10.09%12.78%
Total1113100.00%36100.00%
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