Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/asm-sparc/audioio.h b/include/asm-sparc/audioio.h
new file mode 100644
index 0000000..cf16173
--- /dev/null
+++ b/include/asm-sparc/audioio.h
@@ -0,0 +1,234 @@
+/*
+ * include/asm-sparc/audioio.h
+ *
+ * Sparc Audio Midlayer
+ * Copyright (C) 1996 Thomas K. Dyas (tdyas@noc.rutgers.edu)
+ */
+
+#ifndef _AUDIOIO_H_
+#define _AUDIOIO_H_
+
+/*
+ * SunOS/Solaris /dev/audio interface
+ */
+
+#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
+#include <linux/types.h>
+#include <linux/time.h>
+#include <linux/ioctl.h>
+#endif
+
+/*
+ * This structure contains state information for audio device IO streams.
+ */
+typedef struct audio_prinfo {
+ /*
+ * The following values describe the audio data encoding.
+ */
+ unsigned int sample_rate; /* samples per second */
+ unsigned int channels; /* number of interleaved channels */
+ unsigned int precision; /* bit-width of each sample */
+ unsigned int encoding; /* data encoding method */
+
+ /*
+ * The following values control audio device configuration
+ */
+ unsigned int gain; /* gain level: 0 - 255 */
+ unsigned int port; /* selected I/O port (see below) */
+ unsigned int avail_ports; /* available I/O ports (see below) */
+ unsigned int _xxx[2]; /* Reserved for future use */
+
+ unsigned int buffer_size; /* I/O buffer size */
+
+ /*
+ * The following values describe driver state
+ */
+ unsigned int samples; /* number of samples converted */
+ unsigned int eof; /* End Of File counter (play only) */
+
+ unsigned char pause; /* non-zero for pause, zero to resume */
+ unsigned char error; /* non-zero if overflow/underflow */
+ unsigned char waiting; /* non-zero if a process wants access */
+ unsigned char balance; /* stereo channel balance */
+
+ unsigned short minordev;
+
+ /*
+ * The following values are read-only state flags
+ */
+ unsigned char open; /* non-zero if open access permitted */
+ unsigned char active; /* non-zero if I/O is active */
+} audio_prinfo_t;
+
+
+/*
+ * This structure describes the current state of the audio device.
+ */
+typedef struct audio_info {
+ /*
+ * Per-stream information
+ */
+ audio_prinfo_t play; /* output status information */
+ audio_prinfo_t record; /* input status information */
+
+ /*
+ * Per-unit/channel information
+ */
+ unsigned int monitor_gain; /* input to output mix: 0 - 255 */
+ unsigned char output_muted; /* non-zero if output is muted */
+ unsigned char _xxx[3]; /* Reserved for future use */
+ unsigned int _yyy[3]; /* Reserved for future use */
+} audio_info_t;
+
+
+/*
+ * Audio encoding types
+ */
+#define AUDIO_ENCODING_NONE (0) /* no encoding assigned */
+#define AUDIO_ENCODING_ULAW (1) /* u-law encoding */
+#define AUDIO_ENCODING_ALAW (2) /* A-law encoding */
+#define AUDIO_ENCODING_LINEAR (3) /* Linear PCM encoding */
+#define AUDIO_ENCODING_FLOAT (4) /* IEEE float (-1. <-> +1.) */
+#define AUDIO_ENCODING_DVI (104) /* DVI ADPCM */
+#define AUDIO_ENCODING_LINEAR8 (105) /* 8 bit UNSIGNED */
+#define AUDIO_ENCODING_LINEARLE (106) /* Linear PCM LE encoding */
+
+/*
+ * These ranges apply to record, play, and monitor gain values
+ */
+#define AUDIO_MIN_GAIN (0) /* minimum gain value */
+#define AUDIO_MAX_GAIN (255) /* maximum gain value */
+
+/*
+ * These values apply to the balance field to adjust channel gain values
+ */
+#define AUDIO_LEFT_BALANCE (0) /* left channel only */
+#define AUDIO_MID_BALANCE (32) /* equal left/right channel */
+#define AUDIO_RIGHT_BALANCE (64) /* right channel only */
+#define AUDIO_BALANCE_SHIFT (3)
+
+/*
+ * Generic minimum/maximum limits for number of channels, both modes
+ */
+#define AUDIO_MIN_PLAY_CHANNELS (1)
+#define AUDIO_MAX_PLAY_CHANNELS (4)
+#define AUDIO_MIN_REC_CHANNELS (1)
+#define AUDIO_MAX_REC_CHANNELS (4)
+
+/*
+ * Generic minimum/maximum limits for sample precision
+ */
+#define AUDIO_MIN_PLAY_PRECISION (8)
+#define AUDIO_MAX_PLAY_PRECISION (32)
+#define AUDIO_MIN_REC_PRECISION (8)
+#define AUDIO_MAX_REC_PRECISION (32)
+
+/*
+ * Define some convenient names for typical audio ports
+ */
+/*
+ * output ports (several may be enabled simultaneously)
+ */
+#define AUDIO_SPEAKER 0x01 /* output to built-in speaker */
+#define AUDIO_HEADPHONE 0x02 /* output to headphone jack */
+#define AUDIO_LINE_OUT 0x04 /* output to line out */
+
+/*
+ * input ports (usually only one at a time)
+ */
+#define AUDIO_MICROPHONE 0x01 /* input from microphone */
+#define AUDIO_LINE_IN 0x02 /* input from line in */
+#define AUDIO_CD 0x04 /* input from on-board CD inputs */
+#define AUDIO_INTERNAL_CD_IN AUDIO_CD /* input from internal CDROM */
+#define AUDIO_ANALOG_LOOPBACK 0x40 /* input from output */
+
+
+/*
+ * This macro initializes an audio_info structure to 'harmless' values.
+ * Note that (~0) might not be a harmless value for a flag that was
+ * a signed int.
+ */
+#define AUDIO_INITINFO(i) { \
+ unsigned int *__x__; \
+ for (__x__ = (unsigned int *)(i); \
+ (char *) __x__ < (((char *)(i)) + sizeof (audio_info_t)); \
+ *__x__++ = ~0); \
+}
+
+/*
+ * These allow testing for what the user wants to set
+ */
+#define AUD_INITVALUE (~0)
+#define Modify(X) ((unsigned int)(X) != AUD_INITVALUE)
+#define Modifys(X) ((X) != (unsigned short)AUD_INITVALUE)
+#define Modifyc(X) ((X) != (unsigned char)AUD_INITVALUE)
+
+/*
+ * Parameter for the AUDIO_GETDEV ioctl to determine current
+ * audio devices.
+ */
+#define MAX_AUDIO_DEV_LEN (16)
+typedef struct audio_device {
+ char name[MAX_AUDIO_DEV_LEN];
+ char version[MAX_AUDIO_DEV_LEN];
+ char config[MAX_AUDIO_DEV_LEN];
+} audio_device_t;
+
+
+/*
+ * Ioctl calls for the audio device.
+ */
+
+/*
+ * AUDIO_GETINFO retrieves the current state of the audio device.
+ *
+ * AUDIO_SETINFO copies all fields of the audio_info structure whose
+ * values are not set to the initialized value (-1) to the device state.
+ * It performs an implicit AUDIO_GETINFO to return the new state of the
+ * device. Note that the record.samples and play.samples fields are set
+ * to the last value before the AUDIO_SETINFO took effect. This allows
+ * an application to reset the counters while atomically retrieving the
+ * last value.
+ *
+ * AUDIO_DRAIN suspends the calling process until the write buffers are
+ * empty.
+ *
+ * AUDIO_GETDEV returns a structure of type audio_device_t which contains
+ * three strings. The string "name" is a short identifying string (for
+ * example, the SBus Fcode name string), the string "version" identifies
+ * the current version of the device, and the "config" string identifies
+ * the specific configuration of the audio stream. All fields are
+ * device-dependent -- see the device specific manual pages for details.
+ *
+ * AUDIO_GETDEV_SUNOS returns a number which is an audio device defined
+ * herein (making it not too portable)
+ *
+ * AUDIO_FLUSH stops all playback and recording, clears all queued buffers,
+ * resets error counters, and restarts recording and playback as appropriate
+ * for the current sampling mode.
+ */
+#define AUDIO_GETINFO _IOR('A', 1, audio_info_t)
+#define AUDIO_SETINFO _IOWR('A', 2, audio_info_t)
+#define AUDIO_DRAIN _IO('A', 3)
+#define AUDIO_GETDEV _IOR('A', 4, audio_device_t)
+#define AUDIO_GETDEV_SUNOS _IOR('A', 4, int)
+#define AUDIO_FLUSH _IO('A', 5)
+
+/* Define possible audio hardware configurations for
+ * old SunOS-style AUDIO_GETDEV ioctl */
+#define AUDIO_DEV_UNKNOWN (0) /* not defined */
+#define AUDIO_DEV_AMD (1) /* audioamd device */
+#define AUDIO_DEV_SPEAKERBOX (2) /* dbri device with speakerbox */
+#define AUDIO_DEV_CODEC (3) /* dbri device (internal speaker) */
+#define AUDIO_DEV_CS4231 (5) /* cs4231 device */
+
+/*
+ * The following ioctl sets the audio device into an internal loopback mode,
+ * if the hardware supports this. The argument is TRUE to set loopback,
+ * FALSE to reset to normal operation. If the hardware does not support
+ * internal loopback, the ioctl should fail with EINVAL.
+ * Causes ADC data to be digitally mixed in and sent to the DAC.
+ */
+#define AUDIO_DIAG_LOOPBACK _IOW('A', 101, int)
+
+#endif /* _AUDIOIO_H_ */