Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Interface for hwdep device | |
3 | * | |
4 | * Copyright (C) 2004 Takashi Iwai <tiwai@suse.de> | |
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 | ||
1da177e4 LT |
22 | #include <sound/core.h> |
23 | #include <sound/hwdep.h> | |
976412fb | 24 | #include <linux/uaccess.h> |
1da177e4 LT |
25 | #include "emux_voice.h" |
26 | ||
1da177e4 LT |
27 | |
28 | #define TMP_CLIENT_ID 0x1001 | |
29 | ||
30 | /* | |
31 | * load patch | |
32 | */ | |
33 | static int | |
03da312a | 34 | snd_emux_hwdep_load_patch(struct snd_emux *emu, void __user *arg) |
1da177e4 LT |
35 | { |
36 | int err; | |
03da312a | 37 | struct soundfont_patch_info patch; |
1da177e4 LT |
38 | |
39 | if (copy_from_user(&patch, arg, sizeof(patch))) | |
40 | return -EFAULT; | |
41 | ||
42 | if (patch.type >= SNDRV_SFNT_LOAD_INFO && | |
43 | patch.type <= SNDRV_SFNT_PROBE_DATA) { | |
44 | err = snd_soundfont_load(emu->sflist, arg, patch.len + sizeof(patch), TMP_CLIENT_ID); | |
45 | if (err < 0) | |
46 | return err; | |
47 | } else { | |
48 | if (emu->ops.load_fx) | |
49 | return emu->ops.load_fx(emu, patch.type, patch.optarg, arg, patch.len + sizeof(patch)); | |
50 | else | |
51 | return -EINVAL; | |
52 | } | |
53 | return 0; | |
54 | } | |
55 | ||
56 | /* | |
57 | * set misc mode | |
58 | */ | |
59 | static int | |
03da312a | 60 | snd_emux_hwdep_misc_mode(struct snd_emux *emu, void __user *arg) |
1da177e4 | 61 | { |
03da312a | 62 | struct snd_emux_misc_mode info; |
1da177e4 LT |
63 | int i; |
64 | ||
65 | if (copy_from_user(&info, arg, sizeof(info))) | |
66 | return -EFAULT; | |
67 | if (info.mode < 0 || info.mode >= EMUX_MD_END) | |
68 | return -EINVAL; | |
69 | ||
70 | if (info.port < 0) { | |
71 | for (i = 0; i < emu->num_ports; i++) | |
72 | emu->portptrs[i]->ctrls[info.mode] = info.value; | |
73 | } else { | |
74 | if (info.port < emu->num_ports) | |
75 | emu->portptrs[info.port]->ctrls[info.mode] = info.value; | |
76 | } | |
77 | return 0; | |
78 | } | |
79 | ||
80 | ||
81 | /* | |
82 | * ioctl | |
83 | */ | |
84 | static int | |
03da312a TI |
85 | snd_emux_hwdep_ioctl(struct snd_hwdep * hw, struct file *file, |
86 | unsigned int cmd, unsigned long arg) | |
1da177e4 | 87 | { |
03da312a | 88 | struct snd_emux *emu = hw->private_data; |
1da177e4 LT |
89 | |
90 | switch (cmd) { | |
91 | case SNDRV_EMUX_IOCTL_VERSION: | |
92 | return put_user(SNDRV_EMUX_VERSION, (unsigned int __user *)arg); | |
93 | case SNDRV_EMUX_IOCTL_LOAD_PATCH: | |
94 | return snd_emux_hwdep_load_patch(emu, (void __user *)arg); | |
95 | case SNDRV_EMUX_IOCTL_RESET_SAMPLES: | |
96 | snd_soundfont_remove_samples(emu->sflist); | |
97 | break; | |
98 | case SNDRV_EMUX_IOCTL_REMOVE_LAST_SAMPLES: | |
99 | snd_soundfont_remove_unlocked(emu->sflist); | |
100 | break; | |
101 | case SNDRV_EMUX_IOCTL_MEM_AVAIL: | |
102 | if (emu->memhdr) { | |
103 | int size = snd_util_mem_avail(emu->memhdr); | |
104 | return put_user(size, (unsigned int __user *)arg); | |
105 | } | |
106 | break; | |
107 | case SNDRV_EMUX_IOCTL_MISC_MODE: | |
108 | return snd_emux_hwdep_misc_mode(emu, (void __user *)arg); | |
109 | } | |
110 | ||
111 | return 0; | |
112 | } | |
113 | ||
114 | ||
115 | /* | |
116 | * register hwdep device | |
117 | */ | |
118 | ||
119 | int | |
03da312a | 120 | snd_emux_init_hwdep(struct snd_emux *emu) |
1da177e4 | 121 | { |
03da312a | 122 | struct snd_hwdep *hw; |
1da177e4 LT |
123 | int err; |
124 | ||
125 | if ((err = snd_hwdep_new(emu->card, SNDRV_EMUX_HWDEP_NAME, emu->hwdep_idx, &hw)) < 0) | |
126 | return err; | |
127 | emu->hwdep = hw; | |
128 | strcpy(hw->name, SNDRV_EMUX_HWDEP_NAME); | |
129 | hw->iface = SNDRV_HWDEP_IFACE_EMUX_WAVETABLE; | |
1da177e4 | 130 | hw->ops.ioctl = snd_emux_hwdep_ioctl; |
a254dba3 BH |
131 | /* The ioctl parameter types are compatible between 32- and |
132 | * 64-bit architectures, so use the same function. */ | |
133 | hw->ops.ioctl_compat = snd_emux_hwdep_ioctl; | |
1da177e4 LT |
134 | hw->exclusive = 1; |
135 | hw->private_data = emu; | |
136 | if ((err = snd_card_register(emu->card)) < 0) | |
137 | return err; | |
138 | ||
139 | return 0; | |
140 | } | |
141 | ||
142 | ||
143 | /* | |
144 | * unregister | |
145 | */ | |
146 | void | |
03da312a | 147 | snd_emux_delete_hwdep(struct snd_emux *emu) |
1da177e4 LT |
148 | { |
149 | if (emu->hwdep) { | |
150 | snd_device_free(emu->card, emu->hwdep); | |
151 | emu->hwdep = NULL; | |
152 | } | |
153 | } |