Add hdspm.h kernel header to include/alsa/sound tree for the hdspmixer app

Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/include/sound/hdspm.h b/include/sound/hdspm.h
new file mode 100644 (file)
index 0000000..81990b2
--- /dev/null
+++ b/include/sound/hdspm.h
@@ -0,0 +1,134 @@
+#ifndef __SOUND_HDSPM_H
+#define __SOUND_HDSPM_H
+/*
+ *   Copyright (C) 2003 Winfried Ritsch (IEM)
+ *   based on hdsp.h from Thomas Charbonnel (thomas@undata.org)
+ *                      
+ *    
+ *   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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* Maximum channels is 64 even on 56Mode you have 64playbacks to matrix */
+#define HDSPM_MAX_CHANNELS      64
+
+/* -------------------- IOCTL Peak/RMS Meters -------------------- */
+
+/* peam rms level structure like we get from hardware 
+  
+   maybe in future we can memory map it so I just copy it
+   to user on ioctl call now an dont change anything
+   rms are made out of low and high values
+   where (long) ????_rms = (????_rms_l >> 8) + ((????_rms_h & 0xFFFFFF00)<<24)
+   (i asume so from the code)
+*/
+
+struct hdspm_peak_rms {
+
+       unsigned int level_offset[1024];
+
+       unsigned int input_peak[64];
+       unsigned int playback_peak[64];
+       unsigned int output_peak[64];
+       unsigned int xxx_peak[64];      /* not used */
+
+       unsigned int reserved[256];     /* not used */
+
+       unsigned int input_rms_l[64];
+       unsigned int playback_rms_l[64];
+       unsigned int output_rms_l[64];
+       unsigned int xxx_rms_l[64];     /* not used */
+
+       unsigned int input_rms_h[64];
+       unsigned int playback_rms_h[64];
+       unsigned int output_rms_h[64];
+       unsigned int xxx_rms_h[64];     /* not used */
+};
+
+struct hdspm_peak_rms_ioctl {
+       struct hdspm_peak_rms *peak;
+};
+
+/* use indirect access due to the limit of ioctl bit size */
+#define SNDRV_HDSPM_IOCTL_GET_PEAK_RMS \
+       _IOR('H', 0x40, struct hdspm_peak_rms_ioctl)
+
+/* ------------ CONFIG block IOCTL ---------------------- */
+
+struct hdspm_config_info {
+       unsigned char pref_sync_ref;
+       unsigned char wordclock_sync_check;
+       unsigned char madi_sync_check;
+       unsigned int system_sample_rate;
+       unsigned int autosync_sample_rate;
+       unsigned char system_clock_mode;
+       unsigned char clock_source;
+       unsigned char autosync_ref;
+       unsigned char line_out;
+       unsigned int passthru;
+       unsigned int analog_out;
+};
+
+#define SNDRV_HDSPM_IOCTL_GET_CONFIG_INFO \
+       _IOR('H', 0x41, struct hdspm_config_info)
+
+
+/* get Soundcard Version */
+
+struct hdspm_version {
+       unsigned short firmware_rev;
+};
+
+#define SNDRV_HDSPM_IOCTL_GET_VERSION _IOR('H', 0x43, struct hdspm_version)
+
+
+/* ------------- get Matrix Mixer IOCTL --------------- */
+
+/* MADI mixer: 64inputs+64playback in 64outputs = 8192 => *4Byte =
+ * 32768 Bytes
+ */
+
+/* organisation is 64 channelfader in a continous memory block */
+/* equivalent to hardware definition, maybe for future feature of mmap of
+ * them
+ */
+/* each of 64 outputs has 64 infader and 64 outfader: 
+   Ins to Outs mixer[out].in[in], Outstreams to Outs mixer[out].pb[pb] */
+
+#define HDSPM_MIXER_CHANNELS HDSPM_MAX_CHANNELS
+
+struct hdspm_channelfader {
+       unsigned int in[HDSPM_MIXER_CHANNELS];
+       unsigned int pb[HDSPM_MIXER_CHANNELS];
+};
+
+struct hdspm_mixer {
+       struct hdspm_channelfader ch[HDSPM_MIXER_CHANNELS];
+};
+
+struct hdspm_mixer_ioctl {
+       struct hdspm_mixer *mixer;
+};
+
+/* use indirect access due to the limit of ioctl bit size */
+#define SNDRV_HDSPM_IOCTL_GET_MIXER _IOR('H', 0x44, struct hdspm_mixer_ioctl)
+
+/* typedefs for compatibility to user-space */
+typedef struct hdspm_peak_rms hdspm_peak_rms_t;
+typedef struct hdspm_config_info hdspm_config_info_t;
+typedef struct hdspm_version hdspm_version_t;
+typedef struct hdspm_channelfader snd_hdspm_channelfader_t;
+typedef struct hdspm_mixer hdspm_mixer_t;
+
+#endif                         /* __SOUND_HDSPM_H */