1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
/*
* Interface for hwdep device
*
* Copyright (C) 2004 Takashi Iwai <tiwai@suse.de>
*
* 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/driver.h>
#include <sound/core.h>
#include <sound/hwdep.h>
#include <asm/uaccess.h>
#include "emux_voice.h"
/*
* open the hwdep device
*/
static int
snd_emux_hwdep_open(struct snd_hwdep *hw, struct file *file)
{
return 0;
}
/*
* close the device
*/
static int
snd_emux_hwdep_release(struct snd_hwdep *hw, struct file *file)
{
return 0;
}
#define TMP_CLIENT_ID 0x1001
/*
* load patch
*/
static int
snd_emux_hwdep_load_patch(struct snd_emux *emu, void __user *arg)
{
int err;
struct soundfont_patch_info patch;
if (copy_from_user(&patch, arg, sizeof(patch)))
return -EFAULT;
if (patch.type >= SNDRV_SFNT_LOAD_INFO &&
patch.type <= SNDRV_SFNT_PROBE_DATA) {
err = snd_soundfont_load(emu->sflist, arg, patch.len + sizeof(patch), TMP_CLIENT_ID);
if (err < 0)
return err;
} else {
if (emu->ops.load_fx)
return emu->ops.load_fx(emu, patch.type, patch.optarg, arg, patch.len + sizeof(patch));
else
return -EINVAL;
}
return 0;
}
/*
* set misc mode
*/
static int
snd_emux_hwdep_misc_mode(struct snd_emux *emu, void __user *arg)
{
struct snd_emux_misc_mode info;
int i;
if (copy_from_user(&info, arg, sizeof(info)))
return -EFAULT;
if (info.mode < 0 || info.mode >= EMUX_MD_END)
return -EINVAL;
if (info.port < 0) {
for (i = 0; i < emu->num_ports; i++)
emu->portptrs[i]->ctrls[info.mode] = info.value;
} else {
if (info.port < emu->num_ports)
emu->portptrs[info.port]->ctrls[info.mode] = info.value;
}
return 0;
}
/*
* ioctl
*/
static int
snd_emux_hwdep_ioctl(struct snd_hwdep * hw, struct file *file,
unsigned int cmd, unsigned long arg)
{
struct snd_emux *emu = hw->private_data;
switch (cmd) {
case SNDRV_EMUX_IOCTL_VERSION:
return put_user(SNDRV_EMUX_VERSION, (unsigned int __user *)arg);
case SNDRV_EMUX_IOCTL_LOAD_PATCH:
return snd_emux_hwdep_load_patch(emu, (void __user *)arg);
case SNDRV_EMUX_IOCTL_RESET_SAMPLES:
snd_soundfont_remove_samples(emu->sflist);
break;
case SNDRV_EMUX_IOCTL_REMOVE_LAST_SAMPLES:
snd_soundfont_remove_unlocked(emu->sflist);
break;
case SNDRV_EMUX_IOCTL_MEM_AVAIL:
if (emu->memhdr) {
int size = snd_util_mem_avail(emu->memhdr);
return put_user(size, (unsigned int __user *)arg);
}
break;
case SNDRV_EMUX_IOCTL_MISC_MODE:
return snd_emux_hwdep_misc_mode(emu, (void __user *)arg);
}
return 0;
}
/*
* register hwdep device
*/
int
snd_emux_init_hwdep(struct snd_emux *emu)
{
struct snd_hwdep *hw;
int err;
if ((err = snd_hwdep_new(emu->card, SNDRV_EMUX_HWDEP_NAME, emu->hwdep_idx, &hw)) < 0)
return err;
emu->hwdep = hw;
strcpy(hw->name, SNDRV_EMUX_HWDEP_NAME);
hw->iface = SNDRV_HWDEP_IFACE_EMUX_WAVETABLE;
hw->ops.open = snd_emux_hwdep_open;
hw->ops.release = snd_emux_hwdep_release;
hw->ops.ioctl = snd_emux_hwdep_ioctl;
hw->exclusive = 1;
hw->private_data = emu;
if ((err = snd_card_register(emu->card)) < 0)
return err;
return 0;
}
/*
* unregister
*/
void
snd_emux_delete_hwdep(struct snd_emux *emu)
{
if (emu->hwdep) {
snd_device_free(emu->card, emu->hwdep);
emu->hwdep = NULL;
}
}
|
