2 * Interface for hwdep device
4 * Copyright (C) 2004 Takashi Iwai <tiwai@suse.de>
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.
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.
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
22 #include <sound/driver.h>
23 #include <sound/core.h>
24 #include <sound/hwdep.h>
25 #include <asm/uaccess.h>
26 #include "emux_voice.h"
29 * open the hwdep device
32 snd_emux_hwdep_open(struct snd_hwdep *hw, struct file *file)
42 snd_emux_hwdep_release(struct snd_hwdep *hw, struct file *file)
48 #define TMP_CLIENT_ID 0x1001
54 snd_emux_hwdep_load_patch(struct snd_emux *emu, void __user *arg)
57 struct soundfont_patch_info patch;
59 if (copy_from_user(&patch, arg, sizeof(patch)))
62 if (patch.type >= SNDRV_SFNT_LOAD_INFO &&
63 patch.type <= SNDRV_SFNT_PROBE_DATA) {
64 err = snd_soundfont_load(emu->sflist, arg, patch.len + sizeof(patch), TMP_CLIENT_ID);
69 return emu->ops.load_fx(emu, patch.type, patch.optarg, arg, patch.len + sizeof(patch));
80 snd_emux_hwdep_misc_mode(struct snd_emux *emu, void __user *arg)
82 struct snd_emux_misc_mode info;
85 if (copy_from_user(&info, arg, sizeof(info)))
87 if (info.mode < 0 || info.mode >= EMUX_MD_END)
91 for (i = 0; i < emu->num_ports; i++)
92 emu->portptrs[i]->ctrls[info.mode] = info.value;
94 if (info.port < emu->num_ports)
95 emu->portptrs[info.port]->ctrls[info.mode] = info.value;
105 snd_emux_hwdep_ioctl(struct snd_hwdep * hw, struct file *file,
106 unsigned int cmd, unsigned long arg)
108 struct snd_emux *emu = hw->private_data;
111 case SNDRV_EMUX_IOCTL_VERSION:
112 return put_user(SNDRV_EMUX_VERSION, (unsigned int __user *)arg);
113 case SNDRV_EMUX_IOCTL_LOAD_PATCH:
114 return snd_emux_hwdep_load_patch(emu, (void __user *)arg);
115 case SNDRV_EMUX_IOCTL_RESET_SAMPLES:
116 snd_soundfont_remove_samples(emu->sflist);
118 case SNDRV_EMUX_IOCTL_REMOVE_LAST_SAMPLES:
119 snd_soundfont_remove_unlocked(emu->sflist);
121 case SNDRV_EMUX_IOCTL_MEM_AVAIL:
123 int size = snd_util_mem_avail(emu->memhdr);
124 return put_user(size, (unsigned int __user *)arg);
127 case SNDRV_EMUX_IOCTL_MISC_MODE:
128 return snd_emux_hwdep_misc_mode(emu, (void __user *)arg);
136 * register hwdep device
140 snd_emux_init_hwdep(struct snd_emux *emu)
142 struct snd_hwdep *hw;
145 if ((err = snd_hwdep_new(emu->card, SNDRV_EMUX_HWDEP_NAME, emu->hwdep_idx, &hw)) < 0)
148 strcpy(hw->name, SNDRV_EMUX_HWDEP_NAME);
149 hw->iface = SNDRV_HWDEP_IFACE_EMUX_WAVETABLE;
150 hw->ops.open = snd_emux_hwdep_open;
151 hw->ops.release = snd_emux_hwdep_release;
152 hw->ops.ioctl = snd_emux_hwdep_ioctl;
154 hw->private_data = emu;
155 if ((err = snd_card_register(emu->card)) < 0)
166 snd_emux_delete_hwdep(struct snd_emux *emu)
169 snd_device_free(emu->card, emu->hwdep);