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-rw-r--r--include/sound/sb16_csp.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/include/sound/sb16_csp.h b/include/sound/sb16_csp.h
new file mode 100644
index 000000000..cafd415e2
--- /dev/null
+++ b/include/sound/sb16_csp.h
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si>
+ * Takashi Iwai <tiwai@suse.de>
+ *
+ * SB16ASP/AWE32 CSP control
+ */
+#ifndef __SOUND_SB16_CSP_H
+#define __SOUND_SB16_CSP_H
+
+#include <sound/sb.h>
+#include <sound/hwdep.h>
+#include <linux/firmware.h>
+#include <uapi/sound/sb16_csp.h>
+
+struct snd_sb_csp;
+
+/* indices for the known CSP programs */
+enum {
+ CSP_PROGRAM_MULAW,
+ CSP_PROGRAM_ALAW,
+ CSP_PROGRAM_ADPCM_INIT,
+ CSP_PROGRAM_ADPCM_PLAYBACK,
+ CSP_PROGRAM_ADPCM_CAPTURE,
+
+ CSP_PROGRAM_COUNT
+};
+
+/*
+ * CSP operators
+ */
+struct snd_sb_csp_ops {
+ int (*csp_use) (struct snd_sb_csp * p);
+ int (*csp_unuse) (struct snd_sb_csp * p);
+ int (*csp_autoload) (struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode);
+ int (*csp_start) (struct snd_sb_csp * p, int sample_width, int channels);
+ int (*csp_stop) (struct snd_sb_csp * p);
+ int (*csp_qsound_transfer) (struct snd_sb_csp * p);
+};
+
+/*
+ * CSP private data
+ */
+struct snd_sb_csp {
+ struct snd_sb *chip; /* SB16 DSP */
+ int used; /* usage flag - exclusive */
+ char codec_name[16]; /* name of codec */
+ unsigned short func_nr; /* function number */
+ unsigned int acc_format; /* accepted PCM formats */
+ int acc_channels; /* accepted channels */
+ int acc_width; /* accepted sample width */
+ int acc_rates; /* accepted sample rates */
+ int mode; /* MODE */
+ int run_channels; /* current CSP channels */
+ int run_width; /* current sample width */
+ int version; /* CSP version (0x10 - 0x1f) */
+ int running; /* running state */
+
+ struct snd_sb_csp_ops ops; /* operators */
+
+ spinlock_t q_lock; /* locking */
+ int q_enabled; /* enabled flag */
+ int qpos_left; /* left position */
+ int qpos_right; /* right position */
+ int qpos_changed; /* position changed flag */
+
+ struct snd_kcontrol *qsound_switch;
+ struct snd_kcontrol *qsound_space;
+
+ struct mutex access_mutex; /* locking */
+
+ const struct firmware *csp_programs[CSP_PROGRAM_COUNT];
+};
+
+int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep);
+#endif /* __SOUND_SB16_CSP */