Add multiple-device support virtio-loopback-adapter

Updates [v1]:
- The adapter supports multiple vhost-user devices running in
  parallel.
- Redesign the devices interfaces. Unified their common functionality
  and add it into vhost-user-loopback lib. This eases the addition of
  new vhost-user devices and makes the virtio-loopback adapter more
  device agnostic.

Bug-AGL: SPEC-4834
Change-Id: I9aff91dce0207ccdd8c2d1c5d0769a13b4e9ae04
Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>

1 files changed, 0 insertions, 334 deletions

diff --git a/linux/virtio_snd.h b/linux/virtio_snd.h
deleted file mode 100644
index dfe4954..0000000
--- a/linux/virtio_snd.h
+++ /dev/null
@@ -1,334 +0,0 @@
-/* SPDX-License-Identifier: BSD-3-Clause */
-/*
- * Copyright (C) 2021 OpenSynergy GmbH
- */
-#ifndef VIRTIO_SND_IF_H
-#define VIRTIO_SND_IF_H
-
-#include <linux/virtio_types.h>
-
-/*******************************************************************************
- * CONFIGURATION SPACE
- */
-struct virtio_snd_config {
-	/* # of available physical jacks */
-	__le32 jacks;
-	/* # of available PCM streams */
-	__le32 streams;
-	/* # of available channel maps */
-	__le32 chmaps;
-};
-
-enum {
-	/* device virtqueue indexes */
-	VIRTIO_SND_VQ_CONTROL = 0,
-	VIRTIO_SND_VQ_EVENT,
-	VIRTIO_SND_VQ_TX,
-	VIRTIO_SND_VQ_RX,
-	/* # of device virtqueues */
-	VIRTIO_SND_VQ_MAX
-};
-
-/*******************************************************************************
- * COMMON DEFINITIONS
- */
-
-/* supported dataflow directions */
-enum {
-	VIRTIO_SND_D_OUTPUT = 0,
-	VIRTIO_SND_D_INPUT
-};
-
-enum {
-	/* jack control request types */
-	VIRTIO_SND_R_JACK_INFO = 1,
-	VIRTIO_SND_R_JACK_REMAP,
-
-	/* PCM control request types */
-	VIRTIO_SND_R_PCM_INFO = 0x0100,
-	VIRTIO_SND_R_PCM_SET_PARAMS,
-	VIRTIO_SND_R_PCM_PREPARE,
-	VIRTIO_SND_R_PCM_RELEASE,
-	VIRTIO_SND_R_PCM_START,
-	VIRTIO_SND_R_PCM_STOP,
-
-	/* channel map control request types */
-	VIRTIO_SND_R_CHMAP_INFO = 0x0200,
-
-	/* jack event types */
-	VIRTIO_SND_EVT_JACK_CONNECTED = 0x1000,
-	VIRTIO_SND_EVT_JACK_DISCONNECTED,
-
-	/* PCM event types */
-	VIRTIO_SND_EVT_PCM_PERIOD_ELAPSED = 0x1100,
-	VIRTIO_SND_EVT_PCM_XRUN,
-
-	/* common status codes */
-	VIRTIO_SND_S_OK = 0x8000,
-	VIRTIO_SND_S_BAD_MSG,
-	VIRTIO_SND_S_NOT_SUPP,
-	VIRTIO_SND_S_IO_ERR
-};
-
-/* common header */
-struct virtio_snd_hdr {
-	__le32 code;
-};
-
-/* event notification */
-struct virtio_snd_event {
-	/* VIRTIO_SND_EVT_XXX */
-	struct virtio_snd_hdr hdr;
-	/* optional event data */
-	__le32 data;
-};
-
-/* common control request to query an item information */
-struct virtio_snd_query_info {
-	/* VIRTIO_SND_R_XXX_INFO */
-	struct virtio_snd_hdr hdr;
-	/* item start identifier */
-	__le32 start_id;
-	/* item count to query */
-	__le32 count;
-	/* item information size in bytes */
-	__le32 size;
-};
-
-/* common item information header */
-struct virtio_snd_info {
-	/* function group node id (High Definition Audio Specification 7.1.2) */
-	__le32 hda_fn_nid;
-};
-
-/*******************************************************************************
- * JACK CONTROL MESSAGES
- */
-struct virtio_snd_jack_hdr {
-	/* VIRTIO_SND_R_JACK_XXX */
-	struct virtio_snd_hdr hdr;
-	/* 0 ... virtio_snd_config::jacks - 1 */
-	__le32 jack_id;
-};
-
-/* supported jack features */
-enum {
-	VIRTIO_SND_JACK_F_REMAP = 0
-};
-
-struct virtio_snd_jack_info {
-	/* common header */
-	struct virtio_snd_info hdr;
-	/* supported feature bit map (1 << VIRTIO_SND_JACK_F_XXX) */
-	__le32 features;
-	/* pin configuration (High Definition Audio Specification 7.3.3.31) */
-	__le32 hda_reg_defconf;
-	/* pin capabilities (High Definition Audio Specification 7.3.4.9) */
-	__le32 hda_reg_caps;
-	/* current jack connection status (0: disconnected, 1: connected) */
-	__u8 connected;
-
-	__u8 padding[7];
-};
-
-/* jack remapping control request */
-struct virtio_snd_jack_remap {
-	/* .code = VIRTIO_SND_R_JACK_REMAP */
-	struct virtio_snd_jack_hdr hdr;
-	/* selected association number */
-	__le32 association;
-	/* selected sequence number */
-	__le32 sequence;
-};
-
-/*******************************************************************************
- * PCM CONTROL MESSAGES
- */
-struct virtio_snd_pcm_hdr {
-	/* VIRTIO_SND_R_PCM_XXX */
-	struct virtio_snd_hdr hdr;
-	/* 0 ... virtio_snd_config::streams - 1 */
-	__le32 stream_id;
-};
-
-/* supported PCM stream features */
-enum {
-	VIRTIO_SND_PCM_F_SHMEM_HOST = 0,
-	VIRTIO_SND_PCM_F_SHMEM_GUEST,
-	VIRTIO_SND_PCM_F_MSG_POLLING,
-	VIRTIO_SND_PCM_F_EVT_SHMEM_PERIODS,
-	VIRTIO_SND_PCM_F_EVT_XRUNS
-};
-
-/* supported PCM sample formats */
-enum {
-	/* analog formats (width / physical width) */
-	VIRTIO_SND_PCM_FMT_IMA_ADPCM = 0,	/*  4 /  4 bits */
-	VIRTIO_SND_PCM_FMT_MU_LAW,		/*  8 /  8 bits */
-	VIRTIO_SND_PCM_FMT_A_LAW,		/*  8 /  8 bits */
-	VIRTIO_SND_PCM_FMT_S8,			/*  8 /  8 bits */
-	VIRTIO_SND_PCM_FMT_U8,			/*  8 /  8 bits */
-	VIRTIO_SND_PCM_FMT_S16,			/* 16 / 16 bits */
-	VIRTIO_SND_PCM_FMT_U16,			/* 16 / 16 bits */
-	VIRTIO_SND_PCM_FMT_S18_3,		/* 18 / 24 bits */
-	VIRTIO_SND_PCM_FMT_U18_3,		/* 18 / 24 bits */
-	VIRTIO_SND_PCM_FMT_S20_3,		/* 20 / 24 bits */
-	VIRTIO_SND_PCM_FMT_U20_3,		/* 20 / 24 bits */
-	VIRTIO_SND_PCM_FMT_S24_3,		/* 24 / 24 bits */
-	VIRTIO_SND_PCM_FMT_U24_3,		/* 24 / 24 bits */
-	VIRTIO_SND_PCM_FMT_S20,			/* 20 / 32 bits */
-	VIRTIO_SND_PCM_FMT_U20,			/* 20 / 32 bits */
-	VIRTIO_SND_PCM_FMT_S24,			/* 24 / 32 bits */
-	VIRTIO_SND_PCM_FMT_U24,			/* 24 / 32 bits */
-	VIRTIO_SND_PCM_FMT_S32,			/* 32 / 32 bits */
-	VIRTIO_SND_PCM_FMT_U32,			/* 32 / 32 bits */
-	VIRTIO_SND_PCM_FMT_FLOAT,		/* 32 / 32 bits */
-	VIRTIO_SND_PCM_FMT_FLOAT64,		/* 64 / 64 bits */
-	/* digital formats (width / physical width) */
-	VIRTIO_SND_PCM_FMT_DSD_U8,		/*  8 /  8 bits */
-	VIRTIO_SND_PCM_FMT_DSD_U16,		/* 16 / 16 bits */
-	VIRTIO_SND_PCM_FMT_DSD_U32,		/* 32 / 32 bits */
-	VIRTIO_SND_PCM_FMT_IEC958_SUBFRAME	/* 32 / 32 bits */
-};
-
-/* supported PCM frame rates */
-enum {
-	VIRTIO_SND_PCM_RATE_5512 = 0,
-	VIRTIO_SND_PCM_RATE_8000,
-	VIRTIO_SND_PCM_RATE_11025,
-	VIRTIO_SND_PCM_RATE_16000,
-	VIRTIO_SND_PCM_RATE_22050,
-	VIRTIO_SND_PCM_RATE_32000,
-	VIRTIO_SND_PCM_RATE_44100,
-	VIRTIO_SND_PCM_RATE_48000,
-	VIRTIO_SND_PCM_RATE_64000,
-	VIRTIO_SND_PCM_RATE_88200,
-	VIRTIO_SND_PCM_RATE_96000,
-	VIRTIO_SND_PCM_RATE_176400,
-	VIRTIO_SND_PCM_RATE_192000,
-	VIRTIO_SND_PCM_RATE_384000
-};
-
-struct virtio_snd_pcm_info {
-	/* common header */
-	struct virtio_snd_info hdr;
-	/* supported feature bit map (1 << VIRTIO_SND_PCM_F_XXX) */
-	__le32 features;
-	/* supported sample format bit map (1 << VIRTIO_SND_PCM_FMT_XXX) */
-	__le64 formats;
-	/* supported frame rate bit map (1 << VIRTIO_SND_PCM_RATE_XXX) */
-	__le64 rates;
-	/* dataflow direction (VIRTIO_SND_D_XXX) */
-	__u8 direction;
-	/* minimum # of supported channels */
-	__u8 channels_min;
-	/* maximum # of supported channels */
-	__u8 channels_max;
-
-	__u8 padding[5];
-};
-
-/* set PCM stream format */
-struct virtio_snd_pcm_set_params {
-	/* .code = VIRTIO_SND_R_PCM_SET_PARAMS */
-	struct virtio_snd_pcm_hdr hdr;
-	/* size of the hardware buffer */
-	__le32 buffer_bytes;
-	/* size of the hardware period */
-	__le32 period_bytes;
-	/* selected feature bit map (1 << VIRTIO_SND_PCM_F_XXX) */
-	__le32 features;
-	/* selected # of channels */
-	__u8 channels;
-	/* selected sample format (VIRTIO_SND_PCM_FMT_XXX) */
-	__u8 format;
-	/* selected frame rate (VIRTIO_SND_PCM_RATE_XXX) */
-	__u8 rate;
-
-	__u8 padding;
-};
-
-/*******************************************************************************
- * PCM I/O MESSAGES
- */
-
-/* I/O request header */
-struct virtio_snd_pcm_xfer {
-	/* 0 ... virtio_snd_config::streams - 1 */
-	__le32 stream_id;
-};
-
-/* I/O request status */
-struct virtio_snd_pcm_status {
-	/* VIRTIO_SND_S_XXX */
-	__le32 status;
-	/* current device latency */
-	__le32 latency_bytes;
-};
-
-/*******************************************************************************
- * CHANNEL MAP CONTROL MESSAGES
- */
-struct virtio_snd_chmap_hdr {
-	/* VIRTIO_SND_R_CHMAP_XXX */
-	struct virtio_snd_hdr hdr;
-	/* 0 ... virtio_snd_config::chmaps - 1 */
-	__le32 chmap_id;
-};
-
-/* standard channel position definition */
-enum {
-	VIRTIO_SND_CHMAP_NONE = 0,	/* undefined */
-	VIRTIO_SND_CHMAP_NA,		/* silent */
-	VIRTIO_SND_CHMAP_MONO,		/* mono stream */
-	VIRTIO_SND_CHMAP_FL,		/* front left */
-	VIRTIO_SND_CHMAP_FR,		/* front right */
-	VIRTIO_SND_CHMAP_RL,		/* rear left */
-	VIRTIO_SND_CHMAP_RR,		/* rear right */
-	VIRTIO_SND_CHMAP_FC,		/* front center */
-	VIRTIO_SND_CHMAP_LFE,		/* low frequency (LFE) */
-	VIRTIO_SND_CHMAP_SL,		/* side left */
-	VIRTIO_SND_CHMAP_SR,		/* side right */
-	VIRTIO_SND_CHMAP_RC,		/* rear center */
-	VIRTIO_SND_CHMAP_FLC,		/* front left center */
-	VIRTIO_SND_CHMAP_FRC,		/* front right center */
-	VIRTIO_SND_CHMAP_RLC,		/* rear left center */
-	VIRTIO_SND_CHMAP_RRC,		/* rear right center */
-	VIRTIO_SND_CHMAP_FLW,		/* front left wide */
-	VIRTIO_SND_CHMAP_FRW,		/* front right wide */
-	VIRTIO_SND_CHMAP_FLH,		/* front left high */
-	VIRTIO_SND_CHMAP_FCH,		/* front center high */
-	VIRTIO_SND_CHMAP_FRH,		/* front right high */
-	VIRTIO_SND_CHMAP_TC,		/* top center */
-	VIRTIO_SND_CHMAP_TFL,		/* top front left */
-	VIRTIO_SND_CHMAP_TFR,		/* top front right */
-	VIRTIO_SND_CHMAP_TFC,		/* top front center */
-	VIRTIO_SND_CHMAP_TRL,		/* top rear left */
-	VIRTIO_SND_CHMAP_TRR,		/* top rear right */
-	VIRTIO_SND_CHMAP_TRC,		/* top rear center */
-	VIRTIO_SND_CHMAP_TFLC,		/* top front left center */
-	VIRTIO_SND_CHMAP_TFRC,		/* top front right center */
-	VIRTIO_SND_CHMAP_TSL,		/* top side left */
-	VIRTIO_SND_CHMAP_TSR,		/* top side right */
-	VIRTIO_SND_CHMAP_LLFE,		/* left LFE */
-	VIRTIO_SND_CHMAP_RLFE,		/* right LFE */
-	VIRTIO_SND_CHMAP_BC,		/* bottom center */
-	VIRTIO_SND_CHMAP_BLC,		/* bottom left center */
-	VIRTIO_SND_CHMAP_BRC		/* bottom right center */
-};
-
-/* maximum possible number of channels */
-#define VIRTIO_SND_CHMAP_MAX_SIZE	18
-
-struct virtio_snd_chmap_info {
-	/* common header */
-	struct virtio_snd_info hdr;
-	/* dataflow direction (VIRTIO_SND_D_XXX) */
-	__u8 direction;
-	/* # of valid channel position values */
-	__u8 channels;
-	/* channel position values (VIRTIO_SND_CHMAP_XXX) */
-	__u8 positions[VIRTIO_SND_CHMAP_MAX_SIZE];
-};
-
-#endif /* VIRTIO_SND_IF_H */