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freebsd-dev/usr.sbin/bhyve/hda_codec.c
John Baldwin 621b509048 Refactor configuration management in bhyve. 
Replace the existing ad-hoc configuration via various global variables
with a small database of key-value pairs.  The database supports
heirarchical keys using a MIB-like syntax to name the path to a given
key.  Values are always stored as strings.  The API used to manage
configuation values does include wrappers to handling boolean values.
Other values use non-string types require parsing by consumers.

The configuration values are stored in a tree using nvlists.  Leaf
nodes hold string values.  Configuration values are permitted to
reference other configuration values using '%(name)'.  This permits
constructing template configurations.

All existing command line arguments now set configuration values.  For
devices, the "-s" option parses its option argument to generate a list
of key-value pairs for the given device.

A new '-o' command line option permits setting an individual
configuration variable.  The key name is always given as a full path
of dot-separated components.

A new '-k' command line option parses a simple configuration file.
This configuration file holds a flat list of 'key=value' lines where
the 'key' is the full path of a configuration variable.  Lines
starting with a '#' are comments.

In general, bhyve starts by parsing command line options in sequence
and applying those settings to configuration values.  Once this is
complete, bhyve then begins initializing its state based on the
configuration values.  This means that subsequent configuration
options or files may override or supplement previously given settings.

A special 'config.dump' configuration value can be set to true to help
debug configuration issues.  When this value is set, bhyve will print
out the configuration variables as a flat list of 'key=value' lines.

Most command line argments map to a single configuration variable,
e.g.  '-w' sets the 'x86.strictmsr' value to false.  A few command
line arguments have less obvious effects:

- Multiple '-p' options append their values (as a comma-seperated
  list) to "vcpu.N.cpuset" values (where N is a decimal vcpu number).

- For '-s' options, a pci.<bus>.<slot>.<function> node is created.
  The first argument to '-s' (the device type) is used as the value of
  a "device" variable.  Additional comma-separated arguments are then
  parsed into 'key=value' pairs and used to set additional variables
  under the device node.  A PCI device emulation driver can provide
  its own hook to override the parsing of the additonal '-s' arguments
  after the device type.

  After the configuration phase as completed, the init_pci hook
  then walks the "pci.<bus>.<slot>.<func>" nodes.  It uses the
  "device" value to find the device model to use.  The device
  model's init routine is passed a reference to its nvlist node
  in the configuration tree which it can query for specific
  variables.

  The result is that a lot of the string parsing is removed from
  the device models and centralized.  In addition, adding a new
  variable just requires teaching the model to look for the new
  variable.

- For '-l' options, a similar model is used where the string is
  parsed into values that are later read during initialization.
  One key note here is that the serial ports use the commonly
  used lowercase names from existing documentation and examples
  (e.g. "lpc.com1") instead of the uppercase names previously
  used internally in bhyve.

Reviewed by:	grehan
MFC after:	3 months
Differential Revision:	https://reviews.freebsd.org/D26035
2021-03-18 16:30:26 -07:00

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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2016 Alex Teaca <iateaca@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <pthread.h>
#include <pthread_np.h>
#include <unistd.h>
#include "pci_hda.h"
#include "audio.h"
/*
* HDA Codec defines
*/
#define INTEL_VENDORID 0x8086
#define HDA_CODEC_SUBSYSTEM_ID ((INTEL_VENDORID << 16) | 0x01)
#define HDA_CODEC_ROOT_NID 0x00
#define HDA_CODEC_FG_NID 0x01
#define HDA_CODEC_AUDIO_OUTPUT_NID 0x02
#define HDA_CODEC_PIN_OUTPUT_NID 0x03
#define HDA_CODEC_AUDIO_INPUT_NID 0x04
#define HDA_CODEC_PIN_INPUT_NID 0x05
#define HDA_CODEC_STREAMS_COUNT 0x02
#define HDA_CODEC_STREAM_OUTPUT 0x00
#define HDA_CODEC_STREAM_INPUT 0x01
#define HDA_CODEC_PARAMS_COUNT 0x14
#define HDA_CODEC_CONN_LIST_COUNT 0x01
#define HDA_CODEC_RESPONSE_EX_UNSOL 0x10
#define HDA_CODEC_RESPONSE_EX_SOL 0x00
#define HDA_CODEC_AMP_NUMSTEPS 0x4a
#define HDA_CODEC_SUPP_STREAM_FORMATS_PCM \
(1 << HDA_PARAM_SUPP_STREAM_FORMATS_PCM_SHIFT)
#define HDA_CODEC_FMT_BASE_MASK (0x01 << 14)
#define HDA_CODEC_FMT_MULT_MASK (0x07 << 11)
#define HDA_CODEC_FMT_MULT_2 (0x01 << 11)
#define HDA_CODEC_FMT_MULT_3 (0x02 << 11)
#define HDA_CODEC_FMT_MULT_4 (0x03 << 11)
#define HDA_CODEC_FMT_DIV_MASK 0x07
#define HDA_CODEC_FMT_DIV_SHIFT 8
#define HDA_CODEC_FMT_BITS_MASK (0x07 << 4)
#define HDA_CODEC_FMT_BITS_8 (0x00 << 4)
#define HDA_CODEC_FMT_BITS_16 (0x01 << 4)
#define HDA_CODEC_FMT_BITS_24 (0x03 << 4)
#define HDA_CODEC_FMT_BITS_32 (0x04 << 4)
#define HDA_CODEC_FMT_CHAN_MASK (0x0f << 0)
#define HDA_CODEC_AUDIO_WCAP_OUTPUT \
(0x00 << HDA_PARAM_AUDIO_WIDGET_CAP_TYPE_SHIFT)
#define HDA_CODEC_AUDIO_WCAP_INPUT \
(0x01 << HDA_PARAM_AUDIO_WIDGET_CAP_TYPE_SHIFT)
#define HDA_CODEC_AUDIO_WCAP_PIN \
(0x04 << HDA_PARAM_AUDIO_WIDGET_CAP_TYPE_SHIFT)
#define HDA_CODEC_AUDIO_WCAP_CONN_LIST \
(1 << HDA_PARAM_AUDIO_WIDGET_CAP_CONN_LIST_SHIFT)
#define HDA_CODEC_AUDIO_WCAP_FORMAT_OVR \
(1 << HDA_PARAM_AUDIO_WIDGET_CAP_FORMAT_OVR_SHIFT)
#define HDA_CODEC_AUDIO_WCAP_AMP_OVR \
(1 << HDA_PARAM_AUDIO_WIDGET_CAP_AMP_OVR_SHIFT)
#define HDA_CODEC_AUDIO_WCAP_OUT_AMP \
(1 << HDA_PARAM_AUDIO_WIDGET_CAP_OUT_AMP_SHIFT)
#define HDA_CODEC_AUDIO_WCAP_IN_AMP \
(1 << HDA_PARAM_AUDIO_WIDGET_CAP_IN_AMP_SHIFT)
#define HDA_CODEC_AUDIO_WCAP_STEREO \
(1 << HDA_PARAM_AUDIO_WIDGET_CAP_STEREO_SHIFT)
#define HDA_CODEC_PIN_CAP_OUTPUT \
(1 << HDA_PARAM_PIN_CAP_OUTPUT_CAP_SHIFT)
#define HDA_CODEC_PIN_CAP_INPUT \
(1 << HDA_PARAM_PIN_CAP_INPUT_CAP_SHIFT)
#define HDA_CODEC_PIN_CAP_PRESENCE_DETECT \
(1 << HDA_PARAM_PIN_CAP_PRESENCE_DETECT_CAP_SHIFT)
#define HDA_CODEC_OUTPUT_AMP_CAP_MUTE_CAP \
(1 << HDA_PARAM_OUTPUT_AMP_CAP_MUTE_CAP_SHIFT)
#define HDA_CODEC_OUTPUT_AMP_CAP_STEPSIZE \
(0x03 << HDA_PARAM_OUTPUT_AMP_CAP_STEPSIZE_SHIFT)
#define HDA_CODEC_OUTPUT_AMP_CAP_NUMSTEPS \
(HDA_CODEC_AMP_NUMSTEPS << HDA_PARAM_OUTPUT_AMP_CAP_NUMSTEPS_SHIFT)
#define HDA_CODEC_OUTPUT_AMP_CAP_OFFSET \
(HDA_CODEC_AMP_NUMSTEPS << HDA_PARAM_OUTPUT_AMP_CAP_OFFSET_SHIFT)
#define HDA_CODEC_SET_AMP_GAIN_MUTE_MUTE 0x80
#define HDA_CODEC_SET_AMP_GAIN_MUTE_GAIN_MASK 0x7f
#define HDA_CODEC_PIN_SENSE_PRESENCE_PLUGGED (1 << 31)
#define HDA_CODEC_PIN_WIDGET_CTRL_OUT_ENABLE \
(1 << HDA_CMD_GET_PIN_WIDGET_CTRL_OUT_ENABLE_SHIFT)
#define HDA_CODEC_PIN_WIDGET_CTRL_IN_ENABLE \
(1 << HDA_CMD_GET_PIN_WIDGET_CTRL_IN_ENABLE_SHIFT)
#define HDA_CONFIG_DEFAULTCONF_COLOR_BLACK \
(0x01 << HDA_CONFIG_DEFAULTCONF_COLOR_SHIFT)
#define HDA_CONFIG_DEFAULTCONF_COLOR_RED \
(0x05 << HDA_CONFIG_DEFAULTCONF_COLOR_SHIFT)
#define HDA_CODEC_BUF_SIZE HDA_FIFO_SIZE
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
/*
* HDA Audio Context data structures
*/
typedef void (*transfer_func_t)(void *arg);
typedef int (*setup_func_t)(void *arg);
struct hda_audio_ctxt {
char name[64];
uint8_t run;
uint8_t started;
void *priv;
pthread_t tid;
pthread_mutex_t mtx;
pthread_cond_t cond;
setup_func_t do_setup;
transfer_func_t do_transfer;
};
/*
* HDA Audio Context module function declarations
*/
static void *hda_audio_ctxt_thr(void *arg);
static int hda_audio_ctxt_init(struct hda_audio_ctxt *actx, const char *tname,
transfer_func_t do_transfer, setup_func_t do_setup, void *priv);
static int hda_audio_ctxt_start(struct hda_audio_ctxt *actx);
static int hda_audio_ctxt_stop(struct hda_audio_ctxt *actx);
/*
* HDA Codec data structures
*/
struct hda_codec_softc;
typedef uint32_t (*verb_func_t)(struct hda_codec_softc *sc, uint16_t verb,
uint16_t payload);
struct hda_codec_stream {
uint8_t buf[HDA_CODEC_BUF_SIZE];
uint8_t channel;
uint16_t fmt;
uint8_t stream;
uint8_t left_gain;
uint8_t right_gain;
uint8_t left_mute;
uint8_t right_mute;
struct audio *aud;
struct hda_audio_ctxt actx;
};
struct hda_codec_softc {
uint32_t no_nodes;
uint32_t subsystem_id;
const uint32_t (*get_parameters)[HDA_CODEC_PARAMS_COUNT];
const uint8_t (*conn_list)[HDA_CODEC_CONN_LIST_COUNT];
const uint32_t *conf_default;
const uint8_t *pin_ctrl_default;
const verb_func_t *verb_handlers;
struct hda_codec_inst *hci;
struct hda_codec_stream streams[HDA_CODEC_STREAMS_COUNT];
};
/*
* HDA Codec module function declarations
*/
static int hda_codec_init(struct hda_codec_inst *hci, const char *play,
const char *rec);
static int hda_codec_reset(struct hda_codec_inst *hci);
static int hda_codec_command(struct hda_codec_inst *hci, uint32_t cmd_data);
static int hda_codec_notify(struct hda_codec_inst *hci, uint8_t run,
uint8_t stream, uint8_t dir);
static int hda_codec_parse_format(uint16_t fmt, struct audio_params *params);
static uint32_t hda_codec_audio_output_nid(struct hda_codec_softc *sc,
uint16_t verb, uint16_t payload);
static void hda_codec_audio_output_do_transfer(void *arg);
static int hda_codec_audio_output_do_setup(void *arg);
static uint32_t hda_codec_audio_input_nid(struct hda_codec_softc *sc,
uint16_t verb, uint16_t payload);
static void hda_codec_audio_input_do_transfer(void *arg);
static int hda_codec_audio_input_do_setup(void *arg);
static uint32_t hda_codec_audio_inout_nid(struct hda_codec_stream *st,
uint16_t verb, uint16_t payload);
/*
* HDA Codec global data
*/
#define HDA_CODEC_ROOT_DESC \
[HDA_CODEC_ROOT_NID] = { \
[HDA_PARAM_VENDOR_ID] = INTEL_VENDORID, \
[HDA_PARAM_REVISION_ID] = 0xffff, \
/* 1 Subnode, StartNid = 1 */ \
[HDA_PARAM_SUB_NODE_COUNT] = 0x00010001, \
}, \
#define HDA_CODEC_FG_COMMON_DESC \
[HDA_PARAM_FCT_GRP_TYPE] = HDA_PARAM_FCT_GRP_TYPE_NODE_TYPE_AUDIO,\
/* B8 - B32, 8.0 - 192.0kHz */ \
[HDA_PARAM_SUPP_PCM_SIZE_RATE] = (0x1f << 16) | 0x7ff, \
[HDA_PARAM_SUPP_STREAM_FORMATS] = HDA_CODEC_SUPP_STREAM_FORMATS_PCM,\
[HDA_PARAM_INPUT_AMP_CAP] = 0x00, /* None */ \
[HDA_PARAM_OUTPUT_AMP_CAP] = 0x00, /* None */ \
[HDA_PARAM_GPIO_COUNT] = 0x00, \
#define HDA_CODEC_FG_OUTPUT_DESC \
[HDA_CODEC_FG_NID] = { \
/* 2 Subnodes, StartNid = 2 */ \
[HDA_PARAM_SUB_NODE_COUNT] = 0x00020002, \
HDA_CODEC_FG_COMMON_DESC \
}, \
#define HDA_CODEC_FG_INPUT_DESC \
[HDA_CODEC_FG_NID] = { \
/* 2 Subnodes, StartNid = 4 */ \
[HDA_PARAM_SUB_NODE_COUNT] = 0x00040002, \
HDA_CODEC_FG_COMMON_DESC \
}, \
#define HDA_CODEC_FG_DUPLEX_DESC \
[HDA_CODEC_FG_NID] = { \
/* 4 Subnodes, StartNid = 2 */ \
[HDA_PARAM_SUB_NODE_COUNT] = 0x00020004, \
HDA_CODEC_FG_COMMON_DESC \
}, \
#define HDA_CODEC_OUTPUT_DESC \
[HDA_CODEC_AUDIO_OUTPUT_NID] = { \
[HDA_PARAM_AUDIO_WIDGET_CAP] = \
HDA_CODEC_AUDIO_WCAP_OUTPUT | \
HDA_CODEC_AUDIO_WCAP_FORMAT_OVR | \
HDA_CODEC_AUDIO_WCAP_AMP_OVR | \
HDA_CODEC_AUDIO_WCAP_OUT_AMP | \
HDA_CODEC_AUDIO_WCAP_STEREO, \
/* B16, 16.0 - 192.0kHz */ \
[HDA_PARAM_SUPP_PCM_SIZE_RATE] = (0x02 << 16) | 0x7fc, \
[HDA_PARAM_SUPP_STREAM_FORMATS] = \
HDA_CODEC_SUPP_STREAM_FORMATS_PCM, \
[HDA_PARAM_INPUT_AMP_CAP] = 0x00, /* None */ \
[HDA_PARAM_CONN_LIST_LENGTH] = 0x00, \
[HDA_PARAM_OUTPUT_AMP_CAP] = \
HDA_CODEC_OUTPUT_AMP_CAP_MUTE_CAP | \
HDA_CODEC_OUTPUT_AMP_CAP_STEPSIZE | \
HDA_CODEC_OUTPUT_AMP_CAP_NUMSTEPS | \
HDA_CODEC_OUTPUT_AMP_CAP_OFFSET, \
}, \
[HDA_CODEC_PIN_OUTPUT_NID] = { \
[HDA_PARAM_AUDIO_WIDGET_CAP] = \
HDA_CODEC_AUDIO_WCAP_PIN | \
HDA_CODEC_AUDIO_WCAP_CONN_LIST | \
HDA_CODEC_AUDIO_WCAP_STEREO, \
[HDA_PARAM_PIN_CAP] = HDA_CODEC_PIN_CAP_OUTPUT | \
HDA_CODEC_PIN_CAP_PRESENCE_DETECT,\
[HDA_PARAM_INPUT_AMP_CAP] = 0x00, /* None */ \
[HDA_PARAM_CONN_LIST_LENGTH] = 0x01, \
[HDA_PARAM_OUTPUT_AMP_CAP] = 0x00, /* None */ \
}, \
#define HDA_CODEC_INPUT_DESC \
[HDA_CODEC_AUDIO_INPUT_NID] = { \
[HDA_PARAM_AUDIO_WIDGET_CAP] = \
HDA_CODEC_AUDIO_WCAP_INPUT | \
HDA_CODEC_AUDIO_WCAP_CONN_LIST | \
HDA_CODEC_AUDIO_WCAP_FORMAT_OVR | \
HDA_CODEC_AUDIO_WCAP_AMP_OVR | \
HDA_CODEC_AUDIO_WCAP_IN_AMP | \
HDA_CODEC_AUDIO_WCAP_STEREO, \
/* B16, 16.0 - 192.0kHz */ \
[HDA_PARAM_SUPP_PCM_SIZE_RATE] = (0x02 << 16) | 0x7fc, \
[HDA_PARAM_SUPP_STREAM_FORMATS] = \
HDA_CODEC_SUPP_STREAM_FORMATS_PCM, \
[HDA_PARAM_OUTPUT_AMP_CAP] = 0x00, /* None */ \
[HDA_PARAM_CONN_LIST_LENGTH] = 0x01, \
[HDA_PARAM_INPUT_AMP_CAP] = \
HDA_CODEC_OUTPUT_AMP_CAP_MUTE_CAP | \
HDA_CODEC_OUTPUT_AMP_CAP_STEPSIZE | \
HDA_CODEC_OUTPUT_AMP_CAP_NUMSTEPS | \
HDA_CODEC_OUTPUT_AMP_CAP_OFFSET, \
}, \
[HDA_CODEC_PIN_INPUT_NID] = { \
[HDA_PARAM_AUDIO_WIDGET_CAP] = \
HDA_CODEC_AUDIO_WCAP_PIN | \
HDA_CODEC_AUDIO_WCAP_STEREO, \
[HDA_PARAM_PIN_CAP] = HDA_CODEC_PIN_CAP_INPUT | \
HDA_CODEC_PIN_CAP_PRESENCE_DETECT, \
[HDA_PARAM_INPUT_AMP_CAP] = 0x00, /* None */ \
[HDA_PARAM_OUTPUT_AMP_CAP] = 0x00, /* None */ \
}, \
static const uint32_t
hda_codec_output_parameters[][HDA_CODEC_PARAMS_COUNT] = {
HDA_CODEC_ROOT_DESC
HDA_CODEC_FG_OUTPUT_DESC
HDA_CODEC_OUTPUT_DESC
};
static const uint32_t
hda_codec_input_parameters[][HDA_CODEC_PARAMS_COUNT] = {
HDA_CODEC_ROOT_DESC
HDA_CODEC_FG_INPUT_DESC
HDA_CODEC_INPUT_DESC
};
static const uint32_t
hda_codec_duplex_parameters[][HDA_CODEC_PARAMS_COUNT] = {
HDA_CODEC_ROOT_DESC
HDA_CODEC_FG_DUPLEX_DESC
HDA_CODEC_OUTPUT_DESC
HDA_CODEC_INPUT_DESC
};
#define HDA_CODEC_NODES_COUNT (ARRAY_SIZE(hda_codec_duplex_parameters))
static const uint8_t
hda_codec_conn_list[HDA_CODEC_NODES_COUNT][HDA_CODEC_CONN_LIST_COUNT] = {
[HDA_CODEC_PIN_OUTPUT_NID] = {HDA_CODEC_AUDIO_OUTPUT_NID},
[HDA_CODEC_AUDIO_INPUT_NID] = {HDA_CODEC_PIN_INPUT_NID},
};
static const uint32_t
hda_codec_conf_default[HDA_CODEC_NODES_COUNT] = {
[HDA_CODEC_PIN_OUTPUT_NID] = \
HDA_CONFIG_DEFAULTCONF_CONNECTIVITY_JACK |
HDA_CONFIG_DEFAULTCONF_DEVICE_LINE_OUT |
HDA_CONFIG_DEFAULTCONF_COLOR_BLACK |
(0x01 << HDA_CONFIG_DEFAULTCONF_ASSOCIATION_SHIFT),
[HDA_CODEC_PIN_INPUT_NID] = HDA_CONFIG_DEFAULTCONF_CONNECTIVITY_JACK |
HDA_CONFIG_DEFAULTCONF_DEVICE_LINE_IN |
HDA_CONFIG_DEFAULTCONF_COLOR_RED |
(0x02 << HDA_CONFIG_DEFAULTCONF_ASSOCIATION_SHIFT),
};
static const uint8_t
hda_codec_pin_ctrl_default[HDA_CODEC_NODES_COUNT] = {
[HDA_CODEC_PIN_OUTPUT_NID] = HDA_CODEC_PIN_WIDGET_CTRL_OUT_ENABLE,
[HDA_CODEC_PIN_INPUT_NID] = HDA_CODEC_PIN_WIDGET_CTRL_IN_ENABLE,
};
static const
verb_func_t hda_codec_verb_handlers[HDA_CODEC_NODES_COUNT] = {
[HDA_CODEC_AUDIO_OUTPUT_NID] = hda_codec_audio_output_nid,
[HDA_CODEC_AUDIO_INPUT_NID] = hda_codec_audio_input_nid,
};
/*
* HDA Codec module function definitions
*/
static int
hda_codec_init(struct hda_codec_inst *hci, const char *play,
const char *rec)
{
struct hda_codec_softc *sc = NULL;
struct hda_codec_stream *st = NULL;
int err;
if (!(play || rec))
return (-1);
sc = calloc(1, sizeof(*sc));
if (!sc)
return (-1);
if (play && rec)
sc->get_parameters = hda_codec_duplex_parameters;
else {
if (play)
sc->get_parameters = hda_codec_output_parameters;
else
sc->get_parameters = hda_codec_input_parameters;
}
sc->subsystem_id = HDA_CODEC_SUBSYSTEM_ID;
sc->no_nodes = HDA_CODEC_NODES_COUNT;
sc->conn_list = hda_codec_conn_list;
sc->conf_default = hda_codec_conf_default;
sc->pin_ctrl_default = hda_codec_pin_ctrl_default;
sc->verb_handlers = hda_codec_verb_handlers;
DPRINTF("HDA Codec nodes: %d", sc->no_nodes);
/*
* Initialize the Audio Output stream
*/
if (play) {
st = &sc->streams[HDA_CODEC_STREAM_OUTPUT];
err = hda_audio_ctxt_init(&st->actx, "hda-audio-output",
hda_codec_audio_output_do_transfer,
hda_codec_audio_output_do_setup, sc);
assert(!err);
st->aud = audio_init(play, 1);
if (!st->aud) {
DPRINTF("Fail to init the output audio player");
return (-1);
}
}
/*
* Initialize the Audio Input stream
*/
if (rec) {
st = &sc->streams[HDA_CODEC_STREAM_INPUT];
err = hda_audio_ctxt_init(&st->actx, "hda-audio-input",
hda_codec_audio_input_do_transfer,
hda_codec_audio_input_do_setup, sc);
assert(!err);
st->aud = audio_init(rec, 0);
if (!st->aud) {
DPRINTF("Fail to init the input audio player");
return (-1);
}
}
sc->hci = hci;
hci->priv = sc;
return (0);
}
static int
hda_codec_reset(struct hda_codec_inst *hci)
{
struct hda_ops *hops = NULL;
struct hda_codec_softc *sc = NULL;
struct hda_codec_stream *st = NULL;
int i;
assert(hci);
hops = hci->hops;
assert(hops);
sc = (struct hda_codec_softc *)hci->priv;
assert(sc);
for (i = 0; i < HDA_CODEC_STREAMS_COUNT; i++) {
st = &sc->streams[i];
st->left_gain = HDA_CODEC_AMP_NUMSTEPS;
st->right_gain = HDA_CODEC_AMP_NUMSTEPS;
st->left_mute = HDA_CODEC_SET_AMP_GAIN_MUTE_MUTE;
st->right_mute = HDA_CODEC_SET_AMP_GAIN_MUTE_MUTE;
}
DPRINTF("cad: 0x%x", hci->cad);
if (!hops->signal) {
DPRINTF("The controller ops does not implement \
the signal function");
return (-1);
}
return (hops->signal(hci));
}
static int
hda_codec_command(struct hda_codec_inst *hci, uint32_t cmd_data)
{
struct hda_codec_softc *sc = NULL;
struct hda_ops *hops = NULL;
uint8_t cad = 0, nid = 0;
uint16_t verb = 0, payload = 0;
uint32_t res = 0;
/* 4 bits */
cad = (cmd_data >> HDA_CMD_CAD_SHIFT) & 0x0f;
/* 8 bits */
nid = (cmd_data >> HDA_CMD_NID_SHIFT) & 0xff;
if ((cmd_data & 0x70000) == 0x70000) {
/* 12 bits */
verb = (cmd_data >> HDA_CMD_VERB_12BIT_SHIFT) & 0x0fff;
/* 8 bits */
payload = cmd_data & 0xff;
} else {
/* 4 bits */
verb = (cmd_data >> HDA_CMD_VERB_4BIT_SHIFT) & 0x0f;
/* 16 bits */
payload = cmd_data & 0xffff;
}
assert(cad == hci->cad);
assert(hci);
hops = hci->hops;
assert(hops);
sc = (struct hda_codec_softc *)hci->priv;
assert(sc);
assert(nid < sc->no_nodes);
if (!hops->response) {
DPRINTF("The controller ops does not implement \
the response function");
return (-1);
}
switch (verb) {
case HDA_CMD_VERB_GET_PARAMETER:
res = sc->get_parameters[nid][payload];
break;
case HDA_CMD_VERB_GET_CONN_LIST_ENTRY:
res = sc->conn_list[nid][0];
break;
case HDA_CMD_VERB_GET_PIN_WIDGET_CTRL:
res = sc->pin_ctrl_default[nid];
break;
case HDA_CMD_VERB_GET_PIN_SENSE:
res = HDA_CODEC_PIN_SENSE_PRESENCE_PLUGGED;
break;
case HDA_CMD_VERB_GET_CONFIGURATION_DEFAULT:
res = sc->conf_default[nid];
break;
case HDA_CMD_VERB_GET_SUBSYSTEM_ID:
res = sc->subsystem_id;
break;
default:
assert(sc->verb_handlers);
if (sc->verb_handlers[nid])
res = sc->verb_handlers[nid](sc, verb, payload);
else
DPRINTF("Unknown VERB: 0x%x", verb);
break;
}
DPRINTF("cad: 0x%x nid: 0x%x verb: 0x%x payload: 0x%x response: 0x%x",
cad, nid, verb, payload, res);
return (hops->response(hci, res, HDA_CODEC_RESPONSE_EX_SOL));
}
static int
hda_codec_notify(struct hda_codec_inst *hci, uint8_t run,
uint8_t stream, uint8_t dir)
{
struct hda_codec_softc *sc = NULL;
struct hda_codec_stream *st = NULL;
struct hda_audio_ctxt *actx = NULL;
int i;
int err;
assert(hci);
assert(stream);
sc = (struct hda_codec_softc *)hci->priv;
assert(sc);
i = dir ? HDA_CODEC_STREAM_OUTPUT : HDA_CODEC_STREAM_INPUT;
st = &sc->streams[i];
DPRINTF("run: %d, stream: 0x%x, st->stream: 0x%x dir: %d",
run, stream, st->stream, dir);
if (stream != st->stream) {
DPRINTF("Stream not found");
return (0);
}
actx = &st->actx;
if (run)
err = hda_audio_ctxt_start(actx);
else
err = hda_audio_ctxt_stop(actx);
return (err);
}
static int
hda_codec_parse_format(uint16_t fmt, struct audio_params *params)
{
uint8_t div = 0;
assert(params);
/* Compute the Sample Rate */
params->rate = (fmt & HDA_CODEC_FMT_BASE_MASK) ? 44100 : 48000;
switch (fmt & HDA_CODEC_FMT_MULT_MASK) {
case HDA_CODEC_FMT_MULT_2:
params->rate *= 2;
break;
case HDA_CODEC_FMT_MULT_3:
params->rate *= 3;
break;
case HDA_CODEC_FMT_MULT_4:
params->rate *= 4;
break;
}
div = (fmt >> HDA_CODEC_FMT_DIV_SHIFT) & HDA_CODEC_FMT_DIV_MASK;
params->rate /= (div + 1);
/* Compute the Bits per Sample */
switch (fmt & HDA_CODEC_FMT_BITS_MASK) {
case HDA_CODEC_FMT_BITS_8:
params->format = AFMT_U8;
break;
case HDA_CODEC_FMT_BITS_16:
params->format = AFMT_S16_LE;
break;
case HDA_CODEC_FMT_BITS_24:
params->format = AFMT_S24_LE;
break;
case HDA_CODEC_FMT_BITS_32:
params->format = AFMT_S32_LE;
break;
default:
DPRINTF("Unknown format bits: 0x%x",
fmt & HDA_CODEC_FMT_BITS_MASK);
return (-1);
}
/* Compute the Number of Channels */
params->channels = (fmt & HDA_CODEC_FMT_CHAN_MASK) + 1;
return (0);
}
static uint32_t
hda_codec_audio_output_nid(struct hda_codec_softc *sc, uint16_t verb,
uint16_t payload)
{
struct hda_codec_stream *st = &sc->streams[HDA_CODEC_STREAM_OUTPUT];
int res;
res = hda_codec_audio_inout_nid(st, verb, payload);
return (res);
}
static void
hda_codec_audio_output_do_transfer(void *arg)
{
struct hda_codec_softc *sc = (struct hda_codec_softc *)arg;
struct hda_codec_inst *hci = NULL;
struct hda_ops *hops = NULL;
struct hda_codec_stream *st = NULL;
struct audio *aud = NULL;
int err;
hci = sc->hci;
assert(hci);
hops = hci->hops;
assert(hops);
st = &sc->streams[HDA_CODEC_STREAM_OUTPUT];
aud = st->aud;
err = hops->transfer(hci, st->stream, 1, st->buf, sizeof(st->buf));
if (err)
return;
err = audio_playback(aud, st->buf, sizeof(st->buf));
assert(!err);
}
static int
hda_codec_audio_output_do_setup(void *arg)
{
struct hda_codec_softc *sc = (struct hda_codec_softc *)arg;
struct hda_codec_stream *st = NULL;
struct audio *aud = NULL;
struct audio_params params;
int err;
st = &sc->streams[HDA_CODEC_STREAM_OUTPUT];
aud = st->aud;
err = hda_codec_parse_format(st->fmt, &params);
if (err)
return (-1);
DPRINTF("rate: %d, channels: %d, format: 0x%x",
params.rate, params.channels, params.format);
return (audio_set_params(aud, &params));
}
static uint32_t
hda_codec_audio_input_nid(struct hda_codec_softc *sc, uint16_t verb,
uint16_t payload)
{
struct hda_codec_stream *st = &sc->streams[HDA_CODEC_STREAM_INPUT];
int res;
res = hda_codec_audio_inout_nid(st, verb, payload);
return (res);
}
static void
hda_codec_audio_input_do_transfer(void *arg)
{
struct hda_codec_softc *sc = (struct hda_codec_softc *)arg;
struct hda_codec_inst *hci = NULL;
struct hda_ops *hops = NULL;
struct hda_codec_stream *st = NULL;
struct audio *aud = NULL;
int err;
hci = sc->hci;
assert(hci);
hops = hci->hops;
assert(hops);
st = &sc->streams[HDA_CODEC_STREAM_INPUT];
aud = st->aud;
err = audio_record(aud, st->buf, sizeof(st->buf));
assert(!err);
hops->transfer(hci, st->stream, 0, st->buf, sizeof(st->buf));
}
static int
hda_codec_audio_input_do_setup(void *arg)
{
struct hda_codec_softc *sc = (struct hda_codec_softc *)arg;
struct hda_codec_stream *st = NULL;
struct audio *aud = NULL;
struct audio_params params;
int err;
st = &sc->streams[HDA_CODEC_STREAM_INPUT];
aud = st->aud;
err = hda_codec_parse_format(st->fmt, &params);
if (err)
return (-1);
DPRINTF("rate: %d, channels: %d, format: 0x%x",
params.rate, params.channels, params.format);
return (audio_set_params(aud, &params));
}
static uint32_t
hda_codec_audio_inout_nid(struct hda_codec_stream *st, uint16_t verb,
uint16_t payload)
{
uint32_t res = 0;
uint8_t mute = 0;
uint8_t gain = 0;
DPRINTF("%s verb: 0x%x, payload, 0x%x", st->actx.name, verb, payload);
switch (verb) {
case HDA_CMD_VERB_GET_CONV_FMT:
res = st->fmt;
break;
case HDA_CMD_VERB_SET_CONV_FMT:
st->fmt = payload;
break;
case HDA_CMD_VERB_GET_AMP_GAIN_MUTE:
if (payload & HDA_CMD_GET_AMP_GAIN_MUTE_LEFT) {
res = st->left_gain | st->left_mute;
DPRINTF("GET_AMP_GAIN_MUTE_LEFT: 0x%x", res);
} else {
res = st->right_gain | st->right_mute;
DPRINTF("GET_AMP_GAIN_MUTE_RIGHT: 0x%x", res);
}
break;
case HDA_CMD_VERB_SET_AMP_GAIN_MUTE:
mute = payload & HDA_CODEC_SET_AMP_GAIN_MUTE_MUTE;
gain = payload & HDA_CODEC_SET_AMP_GAIN_MUTE_GAIN_MASK;
if (payload & HDA_CMD_SET_AMP_GAIN_MUTE_LEFT) {
st->left_mute = mute;
st->left_gain = gain;
DPRINTF("SET_AMP_GAIN_MUTE_LEFT: \
mute: 0x%x gain: 0x%x", mute, gain);
}
if (payload & HDA_CMD_SET_AMP_GAIN_MUTE_RIGHT) {
st->right_mute = mute;
st->right_gain = gain;
DPRINTF("SET_AMP_GAIN_MUTE_RIGHT: \
mute: 0x%x gain: 0x%x", mute, gain);
}
break;
case HDA_CMD_VERB_GET_CONV_STREAM_CHAN:
res = (st->stream << 4) | st->channel;
break;
case HDA_CMD_VERB_SET_CONV_STREAM_CHAN:
st->channel = payload & 0x0f;
st->stream = (payload >> 4) & 0x0f;
DPRINTF("st->channel: 0x%x st->stream: 0x%x",
st->channel, st->stream);
if (!st->stream)
hda_audio_ctxt_stop(&st->actx);
break;
default:
DPRINTF("Unknown VERB: 0x%x", verb);
break;
}
return (res);
}
struct hda_codec_class hda_codec = {
.name = "hda_codec",
.init = hda_codec_init,
.reset = hda_codec_reset,
.command = hda_codec_command,
.notify = hda_codec_notify,
};
HDA_EMUL_SET(hda_codec);
/*
* HDA Audio Context module function definitions
*/
static void *
hda_audio_ctxt_thr(void *arg)
{
struct hda_audio_ctxt *actx = arg;
DPRINTF("Start Thread: %s", actx->name);
pthread_mutex_lock(&actx->mtx);
while (1) {
while (!actx->run)
pthread_cond_wait(&actx->cond, &actx->mtx);
actx->do_transfer(actx->priv);
}
pthread_mutex_unlock(&actx->mtx);
pthread_exit(NULL);
return (NULL);
}
static int
hda_audio_ctxt_init(struct hda_audio_ctxt *actx, const char *tname,
transfer_func_t do_transfer, setup_func_t do_setup, void *priv)
{
int err;
assert(actx);
assert(tname);
assert(do_transfer);
assert(do_setup);
assert(priv);
memset(actx, 0, sizeof(*actx));
actx->run = 0;
actx->do_transfer = do_transfer;
actx->do_setup = do_setup;
actx->priv = priv;
if (strlen(tname) < sizeof(actx->name))
memcpy(actx->name, tname, strlen(tname) + 1);
else
strcpy(actx->name, "unknown");
err = pthread_mutex_init(&actx->mtx, NULL);
assert(!err);
err = pthread_cond_init(&actx->cond, NULL);
assert(!err);
err = pthread_create(&actx->tid, NULL, hda_audio_ctxt_thr, actx);
assert(!err);
pthread_set_name_np(actx->tid, tname);
actx->started = 1;
return (0);
}
static int
hda_audio_ctxt_start(struct hda_audio_ctxt *actx)
{
int err = 0;
assert(actx);
assert(actx->started);
/* The stream is supposed to be stopped */
if (actx->run)
return (-1);
pthread_mutex_lock(&actx->mtx);
err = (* actx->do_setup)(actx->priv);
if (!err) {
actx->run = 1;
pthread_cond_signal(&actx->cond);
}
pthread_mutex_unlock(&actx->mtx);
return (err);
}
static int
hda_audio_ctxt_stop(struct hda_audio_ctxt *actx)
{
actx->run = 0;
return (0);
}
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