Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / synth / emux / emux_hwdep.c

diff --git a/kernel/sound/synth/emux/emux_hwdep.c b/kernel/sound/synth/emux/emux_hwdep.c
new file mode 100644 (file)
index 0000000..e557946
--- /dev/null
+++ b/kernel/sound/synth/emux/emux_hwdep.c
@@ -0,0 +1,153 @@
+/*
+ *  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/core.h>
+#include <sound/hwdep.h>
+#include <linux/uaccess.h>
+#include "emux_voice.h"
+
+
+#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.ioctl = snd_emux_hwdep_ioctl;
+       /* The ioctl parameter types are compatible between 32- and
+        * 64-bit architectures, so use the same function. */
+       hw->ops.ioctl_compat = 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;
+       }
+}