11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * Interface for hwdep device 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Copyright (C) 2004 Takashi Iwai <tiwai@suse.de> 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or modify 71da177e4SLinus Torvalds * it under the terms of the GNU General Public License as published by 81da177e4SLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 91da177e4SLinus Torvalds * (at your option) any later version. 101da177e4SLinus Torvalds * 111da177e4SLinus Torvalds * This program is distributed in the hope that it will be useful, 121da177e4SLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 131da177e4SLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 141da177e4SLinus Torvalds * GNU General Public License for more details. 151da177e4SLinus Torvalds * 161da177e4SLinus Torvalds * You should have received a copy of the GNU General Public License 171da177e4SLinus Torvalds * along with this program; if not, write to the Free Software 181da177e4SLinus Torvalds * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 191da177e4SLinus Torvalds * 201da177e4SLinus Torvalds */ 211da177e4SLinus Torvalds 221da177e4SLinus Torvalds #include <sound/core.h> 231da177e4SLinus Torvalds #include <sound/hwdep.h> 24976412fbSTakashi Iwai #include <linux/uaccess.h> 251da177e4SLinus Torvalds #include "emux_voice.h" 261da177e4SLinus Torvalds 271da177e4SLinus Torvalds 281da177e4SLinus Torvalds #define TMP_CLIENT_ID 0x1001 291da177e4SLinus Torvalds 301da177e4SLinus Torvalds /* 311da177e4SLinus Torvalds * load patch 321da177e4SLinus Torvalds */ 331da177e4SLinus Torvalds static int 3403da312aSTakashi Iwai snd_emux_hwdep_load_patch(struct snd_emux *emu, void __user *arg) 351da177e4SLinus Torvalds { 361da177e4SLinus Torvalds int err; 3703da312aSTakashi Iwai struct soundfont_patch_info patch; 381da177e4SLinus Torvalds 391da177e4SLinus Torvalds if (copy_from_user(&patch, arg, sizeof(patch))) 401da177e4SLinus Torvalds return -EFAULT; 411da177e4SLinus Torvalds 421da177e4SLinus Torvalds if (patch.type >= SNDRV_SFNT_LOAD_INFO && 431da177e4SLinus Torvalds patch.type <= SNDRV_SFNT_PROBE_DATA) { 441da177e4SLinus Torvalds err = snd_soundfont_load(emu->sflist, arg, patch.len + sizeof(patch), TMP_CLIENT_ID); 451da177e4SLinus Torvalds if (err < 0) 461da177e4SLinus Torvalds return err; 471da177e4SLinus Torvalds } else { 481da177e4SLinus Torvalds if (emu->ops.load_fx) 491da177e4SLinus Torvalds return emu->ops.load_fx(emu, patch.type, patch.optarg, arg, patch.len + sizeof(patch)); 501da177e4SLinus Torvalds else 511da177e4SLinus Torvalds return -EINVAL; 521da177e4SLinus Torvalds } 531da177e4SLinus Torvalds return 0; 541da177e4SLinus Torvalds } 551da177e4SLinus Torvalds 561da177e4SLinus Torvalds /* 571da177e4SLinus Torvalds * set misc mode 581da177e4SLinus Torvalds */ 591da177e4SLinus Torvalds static int 6003da312aSTakashi Iwai snd_emux_hwdep_misc_mode(struct snd_emux *emu, void __user *arg) 611da177e4SLinus Torvalds { 6203da312aSTakashi Iwai struct snd_emux_misc_mode info; 631da177e4SLinus Torvalds int i; 641da177e4SLinus Torvalds 651da177e4SLinus Torvalds if (copy_from_user(&info, arg, sizeof(info))) 661da177e4SLinus Torvalds return -EFAULT; 671da177e4SLinus Torvalds if (info.mode < 0 || info.mode >= EMUX_MD_END) 681da177e4SLinus Torvalds return -EINVAL; 691da177e4SLinus Torvalds 701da177e4SLinus Torvalds if (info.port < 0) { 711da177e4SLinus Torvalds for (i = 0; i < emu->num_ports; i++) 721da177e4SLinus Torvalds emu->portptrs[i]->ctrls[info.mode] = info.value; 731da177e4SLinus Torvalds } else { 741da177e4SLinus Torvalds if (info.port < emu->num_ports) 751da177e4SLinus Torvalds emu->portptrs[info.port]->ctrls[info.mode] = info.value; 761da177e4SLinus Torvalds } 771da177e4SLinus Torvalds return 0; 781da177e4SLinus Torvalds } 791da177e4SLinus Torvalds 801da177e4SLinus Torvalds 811da177e4SLinus Torvalds /* 821da177e4SLinus Torvalds * ioctl 831da177e4SLinus Torvalds */ 841da177e4SLinus Torvalds static int 8503da312aSTakashi Iwai snd_emux_hwdep_ioctl(struct snd_hwdep * hw, struct file *file, 8603da312aSTakashi Iwai unsigned int cmd, unsigned long arg) 871da177e4SLinus Torvalds { 8803da312aSTakashi Iwai struct snd_emux *emu = hw->private_data; 891da177e4SLinus Torvalds 901da177e4SLinus Torvalds switch (cmd) { 911da177e4SLinus Torvalds case SNDRV_EMUX_IOCTL_VERSION: 921da177e4SLinus Torvalds return put_user(SNDRV_EMUX_VERSION, (unsigned int __user *)arg); 931da177e4SLinus Torvalds case SNDRV_EMUX_IOCTL_LOAD_PATCH: 941da177e4SLinus Torvalds return snd_emux_hwdep_load_patch(emu, (void __user *)arg); 951da177e4SLinus Torvalds case SNDRV_EMUX_IOCTL_RESET_SAMPLES: 961da177e4SLinus Torvalds snd_soundfont_remove_samples(emu->sflist); 971da177e4SLinus Torvalds break; 981da177e4SLinus Torvalds case SNDRV_EMUX_IOCTL_REMOVE_LAST_SAMPLES: 991da177e4SLinus Torvalds snd_soundfont_remove_unlocked(emu->sflist); 1001da177e4SLinus Torvalds break; 1011da177e4SLinus Torvalds case SNDRV_EMUX_IOCTL_MEM_AVAIL: 1021da177e4SLinus Torvalds if (emu->memhdr) { 1031da177e4SLinus Torvalds int size = snd_util_mem_avail(emu->memhdr); 1041da177e4SLinus Torvalds return put_user(size, (unsigned int __user *)arg); 1051da177e4SLinus Torvalds } 1061da177e4SLinus Torvalds break; 1071da177e4SLinus Torvalds case SNDRV_EMUX_IOCTL_MISC_MODE: 1081da177e4SLinus Torvalds return snd_emux_hwdep_misc_mode(emu, (void __user *)arg); 1091da177e4SLinus Torvalds } 1101da177e4SLinus Torvalds 1111da177e4SLinus Torvalds return 0; 1121da177e4SLinus Torvalds } 1131da177e4SLinus Torvalds 1141da177e4SLinus Torvalds 1151da177e4SLinus Torvalds /* 1161da177e4SLinus Torvalds * register hwdep device 1171da177e4SLinus Torvalds */ 1181da177e4SLinus Torvalds 1191da177e4SLinus Torvalds int 12003da312aSTakashi Iwai snd_emux_init_hwdep(struct snd_emux *emu) 1211da177e4SLinus Torvalds { 12203da312aSTakashi Iwai struct snd_hwdep *hw; 1231da177e4SLinus Torvalds int err; 1241da177e4SLinus Torvalds 1251da177e4SLinus Torvalds if ((err = snd_hwdep_new(emu->card, SNDRV_EMUX_HWDEP_NAME, emu->hwdep_idx, &hw)) < 0) 1261da177e4SLinus Torvalds return err; 1271da177e4SLinus Torvalds emu->hwdep = hw; 1281da177e4SLinus Torvalds strcpy(hw->name, SNDRV_EMUX_HWDEP_NAME); 1291da177e4SLinus Torvalds hw->iface = SNDRV_HWDEP_IFACE_EMUX_WAVETABLE; 1301da177e4SLinus Torvalds hw->ops.ioctl = snd_emux_hwdep_ioctl; 131a254dba3SBen Hutchings /* The ioctl parameter types are compatible between 32- and 132a254dba3SBen Hutchings * 64-bit architectures, so use the same function. */ 133a254dba3SBen Hutchings hw->ops.ioctl_compat = snd_emux_hwdep_ioctl; 1341da177e4SLinus Torvalds hw->exclusive = 1; 1351da177e4SLinus Torvalds hw->private_data = emu; 1361da177e4SLinus Torvalds if ((err = snd_card_register(emu->card)) < 0) 1371da177e4SLinus Torvalds return err; 1381da177e4SLinus Torvalds 1391da177e4SLinus Torvalds return 0; 1401da177e4SLinus Torvalds } 1411da177e4SLinus Torvalds 1421da177e4SLinus Torvalds 1431da177e4SLinus Torvalds /* 1441da177e4SLinus Torvalds * unregister 1451da177e4SLinus Torvalds */ 1461da177e4SLinus Torvalds void 14703da312aSTakashi Iwai snd_emux_delete_hwdep(struct snd_emux *emu) 1481da177e4SLinus Torvalds { 1491da177e4SLinus Torvalds if (emu->hwdep) { 1501da177e4SLinus Torvalds snd_device_free(emu->card, emu->hwdep); 1511da177e4SLinus Torvalds emu->hwdep = NULL; 1521da177e4SLinus Torvalds } 1531da177e4SLinus Torvalds } 154