cregit-Linux how code gets into the kernel

Release 4.7 sound/isa/gus/gusclassic.c

Directory: sound/isa/gus
/*
 *  Driver for Gravis UltraSound Classic soundcard
 *  Copyright (c) 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 <linux/init.h>
#include <linux/err.h>
#include <linux/isa.h>
#include <linux/delay.h>
#include <linux/time.h>
#include <linux/module.h>
#include <asm/dma.h>
#include <sound/core.h>
#include <sound/gus.h>

#define SNDRV_LEGACY_FIND_FREE_IRQ

#define SNDRV_LEGACY_FIND_FREE_DMA
#include <sound/initval.h>


#define CRD_NAME "Gravis UltraSound Classic"

#define DEV_NAME "gusclassic"


MODULE_DESCRIPTION(CRD_NAME);
MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}");


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;	
/* Enable this card */

static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	
/* 0x220,0x230,0x240,0x250,0x260 */

static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	
/* 3,5,9,11,12,15 */

static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	
/* 1,3,5,6,7 */

static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	
/* 1,3,5,6,7 */

static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
				/* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */

static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};

static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};

module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
module_param_array(port, long, NULL, 0444);
MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
module_param_array(irq, int, NULL, 0444);
MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
module_param_array(dma1, int, NULL, 0444);
MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
module_param_array(dma2, int, NULL, 0444);
MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver.");
module_param_array(joystick_dac, int, NULL, 0444);
MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for " CRD_NAME " driver.");
module_param_array(channels, int, NULL, 0444);
MODULE_PARM_DESC(channels, "GF1 channels for " CRD_NAME " driver.");
module_param_array(pcm_channels, int, NULL, 0444);
MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for " CRD_NAME " driver.");


static int snd_gusclassic_match(struct device *dev, unsigned int n) { return enable[n]; }

Contributors

PersonTokensPropCommitsCommitProp
rene hermanrene herman1152.38%125.00%
jaroslav kyselajaroslav kysela838.10%125.00%
takashi iwaitakashi iwai29.52%250.00%
Total21100.00%4100.00%


static int snd_gusclassic_create(struct snd_card *card, struct device *dev, unsigned int n, struct snd_gus_card **rgus) { static long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260}; static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1}; static int possible_dmas[] = {5, 6, 7, 1, 3, -1}; int i, error; if (irq[n] == SNDRV_AUTO_IRQ) { irq[n] = snd_legacy_find_free_irq(possible_irqs); if (irq[n] < 0) { dev_err(dev, "unable to find a free IRQ\n"); return -EBUSY; } } if (dma1[n] == SNDRV_AUTO_DMA) { dma1[n] = snd_legacy_find_free_dma(possible_dmas); if (dma1[n] < 0) { dev_err(dev, "unable to find a free DMA1\n"); return -EBUSY; } } if (dma2[n] == SNDRV_AUTO_DMA) { dma2[n] = snd_legacy_find_free_dma(possible_dmas); if (dma2[n] < 0) { dev_err(dev, "unable to find a free DMA2\n"); return -EBUSY; } } if (port[n] != SNDRV_AUTO_PORT) return snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n], 0, channels[n], pcm_channels[n], 0, rgus); i = 0; do { port[n] = possible_ports[i]; error = snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n], 0, channels[n], pcm_channels[n], 0, rgus); } while (error < 0 && ++i < ARRAY_SIZE(possible_ports)); return error; }

Contributors

PersonTokensPropCommitsCommitProp
rene hermanrene herman15644.32%116.67%
jaroslav kyselajaroslav kysela14842.05%233.33%
takashi iwaitakashi iwai4813.64%350.00%
Total352100.00%6100.00%


static int snd_gusclassic_detect(struct snd_gus_card *gus) { unsigned char d; snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */ if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) { snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d); return -ENODEV; } udelay(160); snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */ udelay(160); if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) { snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d); return -ENODEV; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
rene hermanrene herman11592.74%150.00%
takashi iwaitakashi iwai97.26%150.00%
Total124100.00%2100.00%


static int snd_gusclassic_probe(struct device *dev, unsigned int n) { struct snd_card *card; struct snd_gus_card *gus; int error; error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card); if (error < 0) return error; if (pcm_channels[n] < 2) pcm_channels[n] = 2; error = snd_gusclassic_create(card, dev, n, &gus); if (error < 0) goto out; error = snd_gusclassic_detect(gus); if (error < 0) goto out; gus->joystick_dac = joystick_dac[n]; error = snd_gus_initialize(gus); if (error < 0) goto out; error = -ENODEV; if (gus->max_flag || gus->ess_flag) { dev_err(dev, "GUS Classic or ACE soundcard was " "not detected at 0x%lx\n", gus->gf1.port); goto out; } error = snd_gf1_new_mixer(gus); if (error < 0) goto out; error = snd_gf1_pcm_new(gus, 0, 0); if (error < 0) goto out; if (!gus->ace_flag) { error = snd_gf1_rawmidi_new(gus, 0); if (error < 0) goto out; } sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %d, dma %d", gus->gf1.port, gus->gf1.irq, gus->gf1.dma1); if (gus->gf1.dma2 >= 0) sprintf(card->longname + strlen(card->longname), "&%d", gus->gf1.dma2); error = snd_card_register(card); if (error < 0) goto out; dev_set_drvdata(dev, card); return 0; out: snd_card_free(card); return error; }

Contributors

PersonTokensPropCommitsCommitProp
rene hermanrene herman15545.59%114.29%
jaroslav kyselajaroslav kysela13038.24%114.29%
takashi iwaitakashi iwai5516.18%571.43%
Total340100.00%7100.00%


static int snd_gusclassic_remove(struct device *dev, unsigned int n) { snd_card_free(dev_get_drvdata(dev)); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
jaroslav kyselajaroslav kysela1142.31%133.33%
rene hermanrene herman830.77%133.33%
takashi iwaitakashi iwai726.92%133.33%
Total26100.00%3100.00%

static struct isa_driver snd_gusclassic_driver = { .match = snd_gusclassic_match, .probe = snd_gusclassic_probe, .remove = snd_gusclassic_remove, #if 0 /* FIXME */ .suspend = snd_gusclassic_suspend, .remove = snd_gusclassic_remove, #endif .driver = { .name = DEV_NAME } };
static int __init alsa_card_gusclassic_init(void) { return isa_register_driver(&snd_gusclassic_driver, SNDRV_CARDS); }

Contributors

PersonTokensPropCommitsCommitProp
jaroslav kyselajaroslav kysela1161.11%133.33%
takashi iwaitakashi iwai422.22%133.33%
rene hermanrene herman316.67%133.33%
Total18100.00%3100.00%


static void __exit alsa_card_gusclassic_exit(void) { isa_unregister_driver(&snd_gusclassic_driver); }

Contributors

PersonTokensPropCommitsCommitProp
jaroslav kyselajaroslav kysela1066.67%150.00%
rene hermanrene herman533.33%150.00%
Total15100.00%2100.00%

module_init(alsa_card_gusclassic_init); module_exit(alsa_card_gusclassic_exit);

Overall Contributors

PersonTokensPropCommitsCommitProp
jaroslav kyselajaroslav kysela66349.29%637.50%
rene hermanrene herman51438.22%16.25%
takashi iwaitakashi iwai15611.60%637.50%
rusty russellrusty russell110.82%212.50%
paul gortmakerpaul gortmaker10.07%16.25%
Total1345100.00%16100.00%
Directory: sound/isa/gus
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