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1/*
2 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
3 * GUS's memory access via proc filesystem
4 *
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */
21
22#include <linux/slab.h>
23#include <sound/core.h>
24#include <sound/gus.h>
25#include <sound/info.h>
26
27struct gus_proc_private {
28 int rom; /* data are in ROM */
29 unsigned int address;
30 unsigned int size;
31 struct snd_gus_card * gus;
32};
33
34static ssize_t snd_gf1_mem_proc_dump(struct snd_info_entry *entry,
35 void *file_private_data,
36 struct file *file, char __user *buf,
37 size_t count, loff_t pos)
38{
39 struct gus_proc_private *priv = entry->private_data;
40 struct snd_gus_card *gus = priv->gus;
41 int err;
42
43 err = snd_gus_dram_read(gus, buf, pos, count, priv->rom);
44 if (err < 0)
45 return err;
46 return count;
47}
48
49static void snd_gf1_mem_proc_free(struct snd_info_entry *entry)
50{
51 struct gus_proc_private *priv = entry->private_data;
52 kfree(priv);
53}
54
55static struct snd_info_entry_ops snd_gf1_mem_proc_ops = {
56 .read = snd_gf1_mem_proc_dump,
57};
58
59int snd_gf1_mem_proc_init(struct snd_gus_card * gus)
60{
61 int idx;
62 char name[16];
63 struct gus_proc_private *priv;
64 struct snd_info_entry *entry;
65
66 for (idx = 0; idx < 4; idx++) {
67 if (gus->gf1.mem_alloc.banks_8[idx].size > 0) {
68 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
69 if (priv == NULL)
70 return -ENOMEM;
71 priv->gus = gus;
72 sprintf(name, "gus-ram-%i", idx);
73 if (! snd_card_proc_new(gus->card, name, &entry)) {
74 entry->content = SNDRV_INFO_CONTENT_DATA;
75 entry->private_data = priv;
76 entry->private_free = snd_gf1_mem_proc_free;
77 entry->c.ops = &snd_gf1_mem_proc_ops;
78 priv->address = gus->gf1.mem_alloc.banks_8[idx].address;
79 priv->size = entry->size = gus->gf1.mem_alloc.banks_8[idx].size;
80 }
81 }
82 }
83 for (idx = 0; idx < 4; idx++) {
84 if (gus->gf1.rom_present & (1 << idx)) {
85 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
86 if (priv == NULL)
87 return -ENOMEM;
88 priv->rom = 1;
89 priv->gus = gus;
90 sprintf(name, "gus-rom-%i", idx);
91 if (! snd_card_proc_new(gus->card, name, &entry)) {
92 entry->content = SNDRV_INFO_CONTENT_DATA;
93 entry->private_data = priv;
94 entry->private_free = snd_gf1_mem_proc_free;
95 entry->c.ops = &snd_gf1_mem_proc_ops;
96 priv->address = idx * 4096 * 1024;
97 priv->size = entry->size = gus->gf1.rom_memory;
98 }
99 }
100 }
101 return 0;
102}
1/*
2 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
3 * GUS's memory access via proc filesystem
4 *
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */
21
22#include <linux/slab.h>
23#include <sound/core.h>
24#include <sound/gus.h>
25#include <sound/info.h>
26
27struct gus_proc_private {
28 int rom; /* data are in ROM */
29 unsigned int address;
30 unsigned int size;
31 struct snd_gus_card * gus;
32};
33
34static ssize_t snd_gf1_mem_proc_dump(struct snd_info_entry *entry,
35 void *file_private_data,
36 struct file *file, char __user *buf,
37 size_t count, loff_t pos)
38{
39 struct gus_proc_private *priv = entry->private_data;
40 struct snd_gus_card *gus = priv->gus;
41 int err;
42
43 err = snd_gus_dram_read(gus, buf, pos, count, priv->rom);
44 if (err < 0)
45 return err;
46 return count;
47}
48
49static void snd_gf1_mem_proc_free(struct snd_info_entry *entry)
50{
51 struct gus_proc_private *priv = entry->private_data;
52 kfree(priv);
53}
54
55static struct snd_info_entry_ops snd_gf1_mem_proc_ops = {
56 .read = snd_gf1_mem_proc_dump,
57};
58
59int snd_gf1_mem_proc_init(struct snd_gus_card * gus)
60{
61 int idx;
62 char name[16];
63 struct gus_proc_private *priv;
64 struct snd_info_entry *entry;
65
66 for (idx = 0; idx < 4; idx++) {
67 if (gus->gf1.mem_alloc.banks_8[idx].size > 0) {
68 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
69 if (priv == NULL)
70 return -ENOMEM;
71 priv->gus = gus;
72 sprintf(name, "gus-ram-%i", idx);
73 if (! snd_card_proc_new(gus->card, name, &entry)) {
74 entry->content = SNDRV_INFO_CONTENT_DATA;
75 entry->private_data = priv;
76 entry->private_free = snd_gf1_mem_proc_free;
77 entry->c.ops = &snd_gf1_mem_proc_ops;
78 priv->address = gus->gf1.mem_alloc.banks_8[idx].address;
79 priv->size = entry->size = gus->gf1.mem_alloc.banks_8[idx].size;
80 }
81 }
82 }
83 for (idx = 0; idx < 4; idx++) {
84 if (gus->gf1.rom_present & (1 << idx)) {
85 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
86 if (priv == NULL)
87 return -ENOMEM;
88 priv->rom = 1;
89 priv->gus = gus;
90 sprintf(name, "gus-rom-%i", idx);
91 if (! snd_card_proc_new(gus->card, name, &entry)) {
92 entry->content = SNDRV_INFO_CONTENT_DATA;
93 entry->private_data = priv;
94 entry->private_free = snd_gf1_mem_proc_free;
95 entry->c.ops = &snd_gf1_mem_proc_ops;
96 priv->address = idx * 4096 * 1024;
97 priv->size = entry->size = gus->gf1.rom_memory;
98 }
99 }
100 }
101 return 0;
102}