cregit-Linux how code gets into the kernel

Release 4.7 sound/isa/gus/gus_mem_proc.c

Directory: sound/isa/gus
/*
 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
 *  GUS's memory access via proc filesystem
 *
 *
 *   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/slab.h>
#include <sound/core.h>
#include <sound/gus.h>
#include <sound/info.h>


struct gus_proc_private {
	
int rom;		/* data are in ROM */
	
unsigned int address;
	
unsigned int size;
	
struct snd_gus_card * gus;
};


static ssize_t snd_gf1_mem_proc_dump(struct snd_info_entry *entry, void *file_private_data, struct file *file, char __user *buf, size_t count, loff_t pos) { struct gus_proc_private *priv = entry->private_data; struct snd_gus_card *gus = priv->gus; int err; err = snd_gus_dram_read(gus, buf, pos, count, priv->rom); if (err < 0) return err; return count; }

Contributors

PersonTokensPropCommitsCommitProp
jaroslav kyselajaroslav kysela6276.54%228.57%
takashi iwaitakashi iwai1518.52%342.86%
linus torvaldslinus torvalds33.70%114.29%
al viroal viro11.23%114.29%
Total81100.00%7100.00%


static void snd_gf1_mem_proc_free(struct snd_info_entry *entry) { struct gus_proc_private *priv = entry->private_data; kfree(priv); }

Contributors

PersonTokensPropCommitsCommitProp
jaroslav kyselajaroslav kysela2184.00%266.67%
takashi iwaitakashi iwai416.00%133.33%
Total25100.00%3100.00%

static struct snd_info_entry_ops snd_gf1_mem_proc_ops = { .read = snd_gf1_mem_proc_dump, };
int snd_gf1_mem_proc_init(struct snd_gus_card * gus) { int idx; char name[16]; struct gus_proc_private *priv; struct snd_info_entry *entry; for (idx = 0; idx < 4; idx++) { if (gus->gf1.mem_alloc.banks_8[idx].size > 0) { priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (priv == NULL) return -ENOMEM; priv->gus = gus; sprintf(name, "gus-ram-%i", idx); if (! snd_card_proc_new(gus->card, name, &entry)) { entry->content = SNDRV_INFO_CONTENT_DATA; entry->private_data = priv; entry->private_free = snd_gf1_mem_proc_free; entry->c.ops = &snd_gf1_mem_proc_ops; priv->address = gus->gf1.mem_alloc.banks_8[idx].address; priv->size = entry->size = gus->gf1.mem_alloc.banks_8[idx].size; } } } for (idx = 0; idx < 4; idx++) { if (gus->gf1.rom_present & (1 << idx)) { priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (priv == NULL) return -ENOMEM; priv->rom = 1; priv->gus = gus; sprintf(name, "gus-rom-%i", idx); if (! snd_card_proc_new(gus->card, name, &entry)) { entry->content = SNDRV_INFO_CONTENT_DATA; entry->private_data = priv; entry->private_free = snd_gf1_mem_proc_free; entry->c.ops = &snd_gf1_mem_proc_ops; priv->address = idx * 4096 * 1024; priv->size = entry->size = gus->gf1.rom_memory; } } } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
jaroslav kyselajaroslav kysela32197.57%360.00%
takashi iwaitakashi iwai82.43%240.00%
Total329100.00%5100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
jaroslav kyselajaroslav kysela44892.95%650.00%
takashi iwaitakashi iwai306.22%433.33%
linus torvaldslinus torvalds30.62%18.33%
al viroal viro10.21%18.33%
Total482100.00%12100.00%
Directory: sound/isa/gus
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