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freebsd-nq/sys/dev/sound/usb/uaudio.c
Hans Petter Selasky 9b5da8166e Avoid creating PCM devices for MIDI adapters. 
MFC after:	3 days
2012-02-23 07:56:19 +00:00

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/* $NetBSD: uaudio.c,v 1.91 2004/11/05 17:46:14 kent Exp $ */
/* $FreeBSD$ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson (lennart@augustsson.net) at
* Carlstedt Research & Technology.
*
* 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION 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("$FreeBSD$");
/*
* USB audio specs: http://www.usb.org/developers/devclass_docs/audio10.pdf
* http://www.usb.org/developers/devclass_docs/frmts10.pdf
* http://www.usb.org/developers/devclass_docs/termt10.pdf
*/
/*
* Also merged:
* $NetBSD: uaudio.c,v 1.94 2005/01/15 15:19:53 kent Exp $
* $NetBSD: uaudio.c,v 1.95 2005/01/16 06:02:19 dsainty Exp $
* $NetBSD: uaudio.c,v 1.96 2005/01/16 12:46:00 kent Exp $
* $NetBSD: uaudio.c,v 1.97 2005/02/24 08:19:38 martin Exp $
*/
#include <sys/stdint.h>
#include <sys/stddef.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
#include <sys/sx.h>
#include <sys/unistd.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/priv.h>
#include "usbdevs.h"
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#define USB_DEBUG_VAR uaudio_debug
#include <dev/usb/usb_debug.h>
#include <dev/usb/quirk/usb_quirk.h>
#include <sys/reboot.h> /* for bootverbose */
#ifdef HAVE_KERNEL_OPTION_HEADERS
#include "opt_snd.h"
#endif
#include <dev/sound/pcm/sound.h>
#include <dev/sound/usb/uaudioreg.h>
#include <dev/sound/usb/uaudio.h>
#include <dev/sound/chip.h>
#include "feeder_if.h"
static int uaudio_default_rate = 0; /* use rate list */
static int uaudio_default_bits = 32;
static int uaudio_default_channels = 0; /* use default */
#ifdef USB_DEBUG
static int uaudio_debug = 0;
static SYSCTL_NODE(_hw_usb, OID_AUTO, uaudio, CTLFLAG_RW, 0, "USB uaudio");
SYSCTL_INT(_hw_usb_uaudio, OID_AUTO, debug, CTLFLAG_RW,
&uaudio_debug, 0, "uaudio debug level");
TUNABLE_INT("hw.usb.uaudio.default_rate", &uaudio_default_rate);
SYSCTL_INT(_hw_usb_uaudio, OID_AUTO, default_rate, CTLFLAG_RW,
&uaudio_default_rate, 0, "uaudio default sample rate");
TUNABLE_INT("hw.usb.uaudio.default_bits", &uaudio_default_bits);
SYSCTL_INT(_hw_usb_uaudio, OID_AUTO, default_bits, CTLFLAG_RW,
&uaudio_default_bits, 0, "uaudio default sample bits");
TUNABLE_INT("hw.usb.uaudio.default_channels", &uaudio_default_channels);
SYSCTL_INT(_hw_usb_uaudio, OID_AUTO, default_channels, CTLFLAG_RW,
&uaudio_default_channels, 0, "uaudio default sample channels");
#endif
#define UAUDIO_NFRAMES 64 /* must be factor of 8 due HS-USB */
#define UAUDIO_NCHANBUFS 2 /* number of outstanding request */
#define UAUDIO_RECURSE_LIMIT 24 /* rounds */
#define MAKE_WORD(h,l) (((h) << 8) | (l))
#define BIT_TEST(bm,bno) (((bm)[(bno) / 8] >> (7 - ((bno) % 8))) & 1)
#define UAUDIO_MAX_CHAN(x) (x)
struct uaudio_mixer_node {
int32_t minval;
int32_t maxval;
#define MIX_MAX_CHAN 8
int32_t wValue[MIX_MAX_CHAN]; /* using nchan */
uint32_t mul;
uint32_t ctl;
uint16_t wData[MIX_MAX_CHAN]; /* using nchan */
uint16_t wIndex;
uint8_t update[(MIX_MAX_CHAN + 7) / 8];
uint8_t nchan;
uint8_t type;
#define MIX_ON_OFF 1
#define MIX_SIGNED_16 2
#define MIX_UNSIGNED_16 3
#define MIX_SIGNED_8 4
#define MIX_SELECTOR 5
#define MIX_UNKNOWN 6
#define MIX_SIZE(n) ((((n) == MIX_SIGNED_16) || \
((n) == MIX_UNSIGNED_16)) ? 2 : 1)
#define MIX_UNSIGNED(n) ((n) == MIX_UNSIGNED_16)
#define MAX_SELECTOR_INPUT_PIN 256
uint8_t slctrtype[MAX_SELECTOR_INPUT_PIN];
uint8_t class;
struct uaudio_mixer_node *next;
};
struct uaudio_chan {
struct pcmchan_caps pcm_cap; /* capabilities */
struct snd_dbuf *pcm_buf;
const struct usb_config *usb_cfg;
struct mtx *pcm_mtx; /* lock protecting this structure */
struct uaudio_softc *priv_sc;
struct pcm_channel *pcm_ch;
struct usb_xfer *xfer[UAUDIO_NCHANBUFS];
const struct usb_audio_streaming_interface_descriptor *p_asid;
const struct usb_audio_streaming_type1_descriptor *p_asf1d;
const struct usb_audio_streaming_endpoint_descriptor *p_sed;
const usb_endpoint_descriptor_audio_t *p_ed1;
const usb_endpoint_descriptor_audio_t *p_ed2;
const struct uaudio_format *p_fmt;
uint8_t *buf; /* pointer to buffer */
uint8_t *start; /* upper layer buffer start */
uint8_t *end; /* upper layer buffer end */
uint8_t *cur; /* current position in upper layer
* buffer */
uint32_t intr_size; /* in bytes */
uint32_t intr_frames; /* in units */
uint32_t sample_rate;
uint32_t frames_per_second;
uint32_t sample_rem;
uint32_t sample_curr;
uint32_t format;
uint32_t pcm_format[2];
uint16_t bytes_per_frame[2];
uint16_t sample_size;
uint8_t valid;
uint8_t iface_index;
uint8_t iface_alt_index;
};
#define UMIDI_CABLES_MAX 16 /* units */
#define UMIDI_TX_FRAMES 256 /* units */
#define UMIDI_TX_BUFFER (UMIDI_TX_FRAMES * 4) /* bytes */
enum {
UMIDI_TX_TRANSFER,
UMIDI_RX_TRANSFER,
UMIDI_N_TRANSFER,
};
struct umidi_sub_chan {
struct usb_fifo_sc fifo;
uint8_t *temp_cmd;
uint8_t temp_0[4];
uint8_t temp_1[4];
uint8_t state;
#define UMIDI_ST_UNKNOWN 0 /* scan for command */
#define UMIDI_ST_1PARAM 1
#define UMIDI_ST_2PARAM_1 2
#define UMIDI_ST_2PARAM_2 3
#define UMIDI_ST_SYSEX_0 4
#define UMIDI_ST_SYSEX_1 5
#define UMIDI_ST_SYSEX_2 6
uint8_t read_open:1;
uint8_t write_open:1;
uint8_t unused:6;
};
struct umidi_chan {
struct umidi_sub_chan sub[UMIDI_CABLES_MAX];
struct mtx mtx;
struct usb_xfer *xfer[UMIDI_N_TRANSFER];
uint8_t iface_index;
uint8_t iface_alt_index;
uint8_t read_open_refcount;
uint8_t write_open_refcount;
uint8_t curr_cable;
uint8_t max_cable;
uint8_t valid;
uint8_t single_command;
};
struct uaudio_softc {
struct sbuf sc_sndstat;
struct sndcard_func sc_sndcard_func;
struct uaudio_chan sc_rec_chan;
struct uaudio_chan sc_play_chan;
struct umidi_chan sc_midi_chan;
struct usb_device *sc_udev;
struct usb_xfer *sc_mixer_xfer[1];
struct uaudio_mixer_node *sc_mixer_root;
struct uaudio_mixer_node *sc_mixer_curr;
uint32_t sc_mix_info;
uint32_t sc_recsrc_info;
uint16_t sc_audio_rev;
uint16_t sc_mixer_count;
uint8_t sc_sndstat_valid;
uint8_t sc_mixer_iface_index;
uint8_t sc_mixer_iface_no;
uint8_t sc_mixer_chan;
uint8_t sc_pcm_registered:1;
uint8_t sc_mixer_init:1;
uint8_t sc_uq_audio_swap_lr:1;
uint8_t sc_uq_au_inp_async:1;
uint8_t sc_uq_au_no_xu:1;
uint8_t sc_uq_bad_adc:1;
uint8_t sc_uq_au_vendor_class:1;
};
struct uaudio_search_result {
uint8_t bit_input[(256 + 7) / 8];
uint8_t bit_output[(256 + 7) / 8];
uint8_t bit_visited[(256 + 7) / 8];
uint8_t recurse_level;
uint8_t id_max;
};
struct uaudio_terminal_node {
union {
const struct usb_descriptor *desc;
const struct usb_audio_input_terminal *it;
const struct usb_audio_output_terminal *ot;
const struct usb_audio_mixer_unit_0 *mu;
const struct usb_audio_selector_unit *su;
const struct usb_audio_feature_unit *fu;
const struct usb_audio_processing_unit_0 *pu;
const struct usb_audio_extension_unit_0 *eu;
} u;
struct uaudio_search_result usr;
struct uaudio_terminal_node *root;
};
struct uaudio_format {
uint16_t wFormat;
uint8_t bPrecision;
uint32_t freebsd_fmt;
const char *description;
};
static const struct uaudio_format uaudio_formats[] = {
{UA_FMT_PCM8, 8, AFMT_U8, "8-bit U-LE PCM"},
{UA_FMT_PCM8, 16, AFMT_U16_LE, "16-bit U-LE PCM"},
{UA_FMT_PCM8, 24, AFMT_U24_LE, "24-bit U-LE PCM"},
{UA_FMT_PCM8, 32, AFMT_U32_LE, "32-bit U-LE PCM"},
{UA_FMT_PCM, 8, AFMT_S8, "8-bit S-LE PCM"},
{UA_FMT_PCM, 16, AFMT_S16_LE, "16-bit S-LE PCM"},
{UA_FMT_PCM, 24, AFMT_S24_LE, "24-bit S-LE PCM"},
{UA_FMT_PCM, 32, AFMT_S32_LE, "32-bit S-LE PCM"},
{UA_FMT_ALAW, 8, AFMT_A_LAW, "8-bit A-Law"},
{UA_FMT_MULAW, 8, AFMT_MU_LAW, "8-bit mu-Law"},
{0, 0, 0, NULL}
};
#define UAC_OUTPUT 0
#define UAC_INPUT 1
#define UAC_EQUAL 2
#define UAC_RECORD 3
#define UAC_NCLASSES 4
#ifdef USB_DEBUG
static const char *uac_names[] = {
"outputs", "inputs", "equalization", "record"
};
#endif
/* prototypes */
static device_probe_t uaudio_probe;
static device_attach_t uaudio_attach;
static device_detach_t uaudio_detach;
static usb_callback_t uaudio_chan_play_callback;
static usb_callback_t uaudio_chan_record_callback;
static usb_callback_t uaudio_mixer_write_cfg_callback;
static usb_callback_t umidi_bulk_read_callback;
static usb_callback_t umidi_bulk_write_callback;
static void uaudio_chan_fill_info_sub(struct uaudio_softc *,
struct usb_device *, uint32_t, uint8_t, uint8_t);
static void uaudio_chan_fill_info(struct uaudio_softc *,
struct usb_device *);
static void uaudio_mixer_add_ctl_sub(struct uaudio_softc *,
struct uaudio_mixer_node *);
static void uaudio_mixer_add_ctl(struct uaudio_softc *,
struct uaudio_mixer_node *);
static void uaudio_mixer_add_input(struct uaudio_softc *,
const struct uaudio_terminal_node *, int);
static void uaudio_mixer_add_output(struct uaudio_softc *,
const struct uaudio_terminal_node *, int);
static void uaudio_mixer_add_mixer(struct uaudio_softc *,
const struct uaudio_terminal_node *, int);
static void uaudio_mixer_add_selector(struct uaudio_softc *,
const struct uaudio_terminal_node *, int);
static uint32_t uaudio_mixer_feature_get_bmaControls(
const struct usb_audio_feature_unit *, uint8_t);
static void uaudio_mixer_add_feature(struct uaudio_softc *,
const struct uaudio_terminal_node *, int);
static void uaudio_mixer_add_processing_updown(struct uaudio_softc *,
const struct uaudio_terminal_node *, int);
static void uaudio_mixer_add_processing(struct uaudio_softc *,
const struct uaudio_terminal_node *, int);
static void uaudio_mixer_add_extension(struct uaudio_softc *,
const struct uaudio_terminal_node *, int);
static struct usb_audio_cluster uaudio_mixer_get_cluster(uint8_t,
const struct uaudio_terminal_node *);
static uint16_t uaudio_mixer_determine_class(const struct uaudio_terminal_node *,
struct uaudio_mixer_node *);
static uint16_t uaudio_mixer_feature_name(const struct uaudio_terminal_node *,
struct uaudio_mixer_node *);
static const struct uaudio_terminal_node *uaudio_mixer_get_input(
const struct uaudio_terminal_node *, uint8_t);
static const struct uaudio_terminal_node *uaudio_mixer_get_output(
const struct uaudio_terminal_node *, uint8_t);
static void uaudio_mixer_find_inputs_sub(struct uaudio_terminal_node *,
const uint8_t *, uint8_t, struct uaudio_search_result *);
static void uaudio_mixer_find_outputs_sub(struct uaudio_terminal_node *,
uint8_t, uint8_t, struct uaudio_search_result *);
static void uaudio_mixer_fill_info(struct uaudio_softc *,
struct usb_device *, void *);
static uint16_t uaudio_mixer_get(struct usb_device *, uint8_t,
struct uaudio_mixer_node *);
static void uaudio_mixer_ctl_set(struct uaudio_softc *,
struct uaudio_mixer_node *, uint8_t, int32_t val);
static usb_error_t uaudio_set_speed(struct usb_device *, uint8_t, uint32_t);
static int uaudio_mixer_signext(uint8_t, int);
static int uaudio_mixer_bsd2value(struct uaudio_mixer_node *, int32_t val);
static const void *uaudio_mixer_verify_desc(const void *, uint32_t);
static void uaudio_mixer_init(struct uaudio_softc *);
static uint8_t umidi_convert_to_usb(struct umidi_sub_chan *, uint8_t, uint8_t);
static struct umidi_sub_chan *umidi_sub_by_fifo(struct usb_fifo *);
static void umidi_start_read(struct usb_fifo *);
static void umidi_stop_read(struct usb_fifo *);
static void umidi_start_write(struct usb_fifo *);
static void umidi_stop_write(struct usb_fifo *);
static int umidi_open(struct usb_fifo *, int);
static int umidi_ioctl(struct usb_fifo *, u_long cmd, void *, int);
static void umidi_close(struct usb_fifo *, int);
static void umidi_init(device_t dev);
static int umidi_probe(device_t dev);
static int umidi_detach(device_t dev);
#ifdef USB_DEBUG
static void uaudio_chan_dump_ep_desc(
const usb_endpoint_descriptor_audio_t *);
static void uaudio_mixer_dump_cluster(uint8_t,
const struct uaudio_terminal_node *);
static const char *uaudio_mixer_get_terminal_name(uint16_t);
#endif
static const struct usb_config
uaudio_cfg_record[UAUDIO_NCHANBUFS] = {
[0] = {
.type = UE_ISOCHRONOUS,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.bufsize = 0, /* use "wMaxPacketSize * frames" */
.frames = UAUDIO_NFRAMES,
.flags = {.short_xfer_ok = 1,},
.callback = &uaudio_chan_record_callback,
},
[1] = {
.type = UE_ISOCHRONOUS,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.bufsize = 0, /* use "wMaxPacketSize * frames" */
.frames = UAUDIO_NFRAMES,
.flags = {.short_xfer_ok = 1,},
.callback = &uaudio_chan_record_callback,
},
};
static const struct usb_config
uaudio_cfg_play[UAUDIO_NCHANBUFS] = {
[0] = {
.type = UE_ISOCHRONOUS,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = 0, /* use "wMaxPacketSize * frames" */
.frames = UAUDIO_NFRAMES,
.flags = {.short_xfer_ok = 1,},
.callback = &uaudio_chan_play_callback,
},
[1] = {
.type = UE_ISOCHRONOUS,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = 0, /* use "wMaxPacketSize * frames" */
.frames = UAUDIO_NFRAMES,
.flags = {.short_xfer_ok = 1,},
.callback = &uaudio_chan_play_callback,
},
};
static const struct usb_config
uaudio_mixer_config[1] = {
[0] = {
.type = UE_CONTROL,
.endpoint = 0x00, /* Control pipe */
.direction = UE_DIR_ANY,
.bufsize = (sizeof(struct usb_device_request) + 4),
.callback = &uaudio_mixer_write_cfg_callback,
.timeout = 1000, /* 1 second */
},
};
static const
uint8_t umidi_cmd_to_len[16] = {
[0x0] = 0, /* reserved */
[0x1] = 0, /* reserved */
[0x2] = 2, /* bytes */
[0x3] = 3, /* bytes */
[0x4] = 3, /* bytes */
[0x5] = 1, /* bytes */
[0x6] = 2, /* bytes */
[0x7] = 3, /* bytes */
[0x8] = 3, /* bytes */
[0x9] = 3, /* bytes */
[0xA] = 3, /* bytes */
[0xB] = 3, /* bytes */
[0xC] = 2, /* bytes */
[0xD] = 2, /* bytes */
[0xE] = 3, /* bytes */
[0xF] = 1, /* bytes */
};
static const struct usb_config
umidi_config[UMIDI_N_TRANSFER] = {
[UMIDI_TX_TRANSFER] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = UMIDI_TX_BUFFER,
.callback = &umidi_bulk_write_callback,
},
[UMIDI_RX_TRANSFER] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.bufsize = 4, /* bytes */
.flags = {.short_xfer_ok = 1,.proxy_buffer = 1,},
.callback = &umidi_bulk_read_callback,
},
};
static devclass_t uaudio_devclass;
static device_method_t uaudio_methods[] = {
DEVMETHOD(device_probe, uaudio_probe),
DEVMETHOD(device_attach, uaudio_attach),
DEVMETHOD(device_detach, uaudio_detach),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD_END
};
static driver_t uaudio_driver = {
.name = "uaudio",
.methods = uaudio_methods,
.size = sizeof(struct uaudio_softc),
};
static const STRUCT_USB_HOST_ID __used uaudio_devs[] = {
/* Generic USB audio class match */
{USB_IFACE_CLASS(UICLASS_AUDIO),
USB_IFACE_SUBCLASS(UISUBCLASS_AUDIOCONTROL),},
/* Generic USB MIDI class match */
{USB_IFACE_CLASS(UICLASS_AUDIO),
USB_IFACE_SUBCLASS(UISUBCLASS_MIDISTREAM),},
};
static int
uaudio_probe(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
if (uaa->usb_mode != USB_MODE_HOST)
return (ENXIO);
/* lookup non-standard device */
if (uaa->info.bInterfaceClass != UICLASS_AUDIO) {
if (usb_test_quirk(uaa, UQ_AU_VENDOR_CLASS) == 0)
return (ENXIO);
}
/* check for AUDIO control interface */
if (uaa->info.bInterfaceSubClass == UISUBCLASS_AUDIOCONTROL) {
if (usb_test_quirk(uaa, UQ_BAD_AUDIO))
return (ENXIO);
else
return (BUS_PROBE_GENERIC);
}
/* check for MIDI stream */
if (uaa->info.bInterfaceSubClass == UISUBCLASS_MIDISTREAM) {
if (usb_test_quirk(uaa, UQ_BAD_MIDI))
return (ENXIO);
else
return (BUS_PROBE_GENERIC);
}
return (ENXIO);
}
static int
uaudio_attach(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
struct uaudio_softc *sc = device_get_softc(dev);
struct usb_interface_descriptor *id;
device_t child;
sc->sc_play_chan.priv_sc = sc;
sc->sc_rec_chan.priv_sc = sc;
sc->sc_udev = uaa->device;
sc->sc_mixer_iface_index = uaa->info.bIfaceIndex;
sc->sc_mixer_iface_no = uaa->info.bIfaceNum;
if (usb_test_quirk(uaa, UQ_AUDIO_SWAP_LR))
sc->sc_uq_audio_swap_lr = 1;
if (usb_test_quirk(uaa, UQ_AU_INP_ASYNC))
sc->sc_uq_au_inp_async = 1;
if (usb_test_quirk(uaa, UQ_AU_NO_XU))
sc->sc_uq_au_no_xu = 1;
if (usb_test_quirk(uaa, UQ_BAD_ADC))
sc->sc_uq_bad_adc = 1;
if (usb_test_quirk(uaa, UQ_AU_VENDOR_CLASS))
sc->sc_uq_au_vendor_class = 1;
umidi_init(dev);
device_set_usb_desc(dev);
id = usbd_get_interface_descriptor(uaa->iface);
uaudio_chan_fill_info(sc, uaa->device);
uaudio_mixer_fill_info(sc, uaa->device, id);
DPRINTF("audio rev %d.%02x\n",
sc->sc_audio_rev >> 8,
sc->sc_audio_rev & 0xff);
DPRINTF("%d mixer controls\n",
sc->sc_mixer_count);
if (sc->sc_play_chan.valid) {
device_printf(dev, "Play: %d Hz, %d ch, %s format.\n",
sc->sc_play_chan.sample_rate,
sc->sc_play_chan.p_asf1d->bNrChannels,
sc->sc_play_chan.p_fmt->description);
} else {
device_printf(dev, "No playback.\n");
}
if (sc->sc_rec_chan.valid) {
device_printf(dev, "Record: %d Hz, %d ch, %s format.\n",
sc->sc_rec_chan.sample_rate,
sc->sc_rec_chan.p_asf1d->bNrChannels,
sc->sc_rec_chan.p_fmt->description);
} else {
device_printf(dev, "No recording.\n");
}
if (sc->sc_midi_chan.valid) {
if (umidi_probe(dev)) {
goto detach;
}
device_printf(dev, "MIDI sequencer.\n");
} else {
device_printf(dev, "No midi sequencer.\n");
}
DPRINTF("doing child attach\n");
/* attach the children */
sc->sc_sndcard_func.func = SCF_PCM;
/*
* Only attach a PCM device if we have a playback, recording
* or mixer device present:
*/
if (sc->sc_play_chan.valid ||
sc->sc_rec_chan.valid ||
sc->sc_mix_info) {
child = device_add_child(dev, "pcm", -1);
if (child == NULL) {
DPRINTF("out of memory\n");
goto detach;
}
device_set_ivars(child, &sc->sc_sndcard_func);
}
if (bus_generic_attach(dev)) {
DPRINTF("child attach failed\n");
goto detach;
}
return (0); /* success */
detach:
uaudio_detach(dev);
return (ENXIO);
}
static void
uaudio_pcm_setflags(device_t dev, uint32_t flags)
{
pcm_setflags(dev, pcm_getflags(dev) | flags);
}
int
uaudio_attach_sub(device_t dev, kobj_class_t mixer_class, kobj_class_t chan_class)
{
struct uaudio_softc *sc = device_get_softc(device_get_parent(dev));
char status[SND_STATUSLEN];
uaudio_mixer_init(sc);
if (sc->sc_uq_audio_swap_lr) {
DPRINTF("hardware has swapped left and right\n");
/* uaudio_pcm_setflags(dev, SD_F_PSWAPLR); */
}
if (!(sc->sc_mix_info & SOUND_MASK_PCM)) {
DPRINTF("emulating master volume\n");
/*
* Emulate missing pcm mixer controller
* through FEEDER_VOLUME
*/
uaudio_pcm_setflags(dev, SD_F_SOFTPCMVOL);
}
if (mixer_init(dev, mixer_class, sc)) {
goto detach;
}
sc->sc_mixer_init = 1;
snprintf(status, sizeof(status), "at ? %s", PCM_KLDSTRING(snd_uaudio));
if (pcm_register(dev, sc,
sc->sc_play_chan.valid ? 1 : 0,
sc->sc_rec_chan.valid ? 1 : 0)) {
goto detach;
}
uaudio_pcm_setflags(dev, SD_F_MPSAFE);
sc->sc_pcm_registered = 1;
if (sc->sc_play_chan.valid) {
pcm_addchan(dev, PCMDIR_PLAY, chan_class, sc);
}
if (sc->sc_rec_chan.valid) {
pcm_addchan(dev, PCMDIR_REC, chan_class, sc);
}
pcm_setstatus(dev, status);
return (0); /* success */
detach:
uaudio_detach_sub(dev);
return (ENXIO);
}
int
uaudio_detach_sub(device_t dev)
{
struct uaudio_softc *sc = device_get_softc(device_get_parent(dev));
int error = 0;
repeat:
if (sc->sc_pcm_registered) {
error = pcm_unregister(dev);
} else {
if (sc->sc_mixer_init) {
error = mixer_uninit(dev);
}
}
if (error) {
device_printf(dev, "Waiting for sound application to exit!\n");
usb_pause_mtx(NULL, 2 * hz);
goto repeat; /* try again */
}
return (0); /* success */
}
static int
uaudio_detach(device_t dev)
{
struct uaudio_softc *sc = device_get_softc(dev);
/*
* Stop USB transfers early so that any audio applications
* will time out and close opened /dev/dspX.Y device(s), if
* any.
*/
if (sc->sc_play_chan.valid)
usbd_transfer_unsetup(sc->sc_play_chan.xfer, UAUDIO_NCHANBUFS);
if (sc->sc_rec_chan.valid)
usbd_transfer_unsetup(sc->sc_rec_chan.xfer, UAUDIO_NCHANBUFS);
if (bus_generic_detach(dev) != 0) {
DPRINTF("detach failed!\n");
}
sbuf_delete(&sc->sc_sndstat);
sc->sc_sndstat_valid = 0;
umidi_detach(dev);
return (0);
}
/*========================================================================*
* AS - Audio Stream - routines
*========================================================================*/
#ifdef USB_DEBUG
static void
uaudio_chan_dump_ep_desc(const usb_endpoint_descriptor_audio_t *ed)
{
if (ed) {
DPRINTF("endpoint=%p bLength=%d bDescriptorType=%d \n"
"bEndpointAddress=%d bmAttributes=0x%x \n"
"wMaxPacketSize=%d bInterval=%d \n"
"bRefresh=%d bSynchAddress=%d\n",
ed, ed->bLength, ed->bDescriptorType,
ed->bEndpointAddress, ed->bmAttributes,
UGETW(ed->wMaxPacketSize), ed->bInterval,
UEP_HAS_REFRESH(ed) ? ed->bRefresh : 0,
UEP_HAS_SYNCADDR(ed) ? ed->bSynchAddress : 0);
}
}
#endif
/*
* The following is a workaround for broken no-name USB audio devices
* sold by dealextreme called "3D sound". The problem is that the
* manufacturer computed wMaxPacketSize is too small to hold the
* actual data sent. In other words the device sometimes sends more
* data than it actually reports it can send in a single isochronous
* packet.
*/
static void
uaudio_record_fix_fs(usb_endpoint_descriptor_audio_t *ep,
uint32_t xps, uint32_t add)
{
uint32_t mps;
mps = UGETW(ep->wMaxPacketSize);
/*
* If the device indicates it can send more data than what the
* sample rate indicates, we apply the workaround.
*/
if (mps > xps) {
/* allow additional data */
xps += add;
/* check against the maximum USB 1.x length */
if (xps > 1023)
xps = 1023;
/* check if we should do an update */
if (mps < xps) {
/* simply update the wMaxPacketSize field */
USETW(ep->wMaxPacketSize, xps);
DPRINTF("Workaround: Updated wMaxPacketSize "
"from %d to %d bytes.\n",
(int)mps, (int)xps);
}
}
}
static void
uaudio_chan_fill_info_sub(struct uaudio_softc *sc, struct usb_device *udev,
uint32_t rate, uint8_t channels, uint8_t bit_resolution)
{
struct usb_descriptor *desc = NULL;
const struct usb_audio_streaming_interface_descriptor *asid = NULL;
const struct usb_audio_streaming_type1_descriptor *asf1d = NULL;
const struct usb_audio_streaming_endpoint_descriptor *sed = NULL;
usb_endpoint_descriptor_audio_t *ed1 = NULL;
const usb_endpoint_descriptor_audio_t *ed2 = NULL;
struct usb_config_descriptor *cd = usbd_get_config_descriptor(udev);
struct usb_interface_descriptor *id;
const struct uaudio_format *p_fmt;
struct uaudio_chan *chan;
uint16_t curidx = 0xFFFF;
uint16_t lastidx = 0xFFFF;
uint16_t alt_index = 0;
uint16_t wFormat;
uint8_t ep_dir;
uint8_t bChannels;
uint8_t bBitResolution;
uint8_t x;
uint8_t audio_if = 0;
uint8_t uma_if_class;
while ((desc = usb_desc_foreach(cd, desc))) {
if ((desc->bDescriptorType == UDESC_INTERFACE) &&
(desc->bLength >= sizeof(*id))) {
id = (void *)desc;
if (id->bInterfaceNumber != lastidx) {
lastidx = id->bInterfaceNumber;
curidx++;
alt_index = 0;
} else {
alt_index++;
}
uma_if_class =
((id->bInterfaceClass == UICLASS_AUDIO) ||
((id->bInterfaceClass == UICLASS_VENDOR) &&
(sc->sc_uq_au_vendor_class != 0)));
if ((uma_if_class != 0) && (id->bInterfaceSubClass == UISUBCLASS_AUDIOSTREAM)) {
audio_if = 1;
} else {
audio_if = 0;
}
if ((uma_if_class != 0) &&
(id->bInterfaceSubClass == UISUBCLASS_MIDISTREAM)) {
/*
* XXX could allow multiple MIDI interfaces
*/
if ((sc->sc_midi_chan.valid == 0) &&
usbd_get_iface(udev, curidx)) {
sc->sc_midi_chan.iface_index = curidx;
sc->sc_midi_chan.iface_alt_index = alt_index;
sc->sc_midi_chan.valid = 1;
}
}
asid = NULL;
asf1d = NULL;
ed1 = NULL;
ed2 = NULL;
sed = NULL;
}
if ((desc->bDescriptorType == UDESC_CS_INTERFACE) &&
(desc->bDescriptorSubtype == AS_GENERAL) &&
(desc->bLength >= sizeof(*asid))) {
if (asid == NULL) {
asid = (void *)desc;
}
}
if ((desc->bDescriptorType == UDESC_CS_INTERFACE) &&
(desc->bDescriptorSubtype == FORMAT_TYPE) &&
(desc->bLength >= sizeof(*asf1d))) {
if (asf1d == NULL) {
asf1d = (void *)desc;
if (asf1d->bFormatType != FORMAT_TYPE_I) {
DPRINTFN(11, "ignored bFormatType = %d\n",
asf1d->bFormatType);
asf1d = NULL;
continue;
}
if (asf1d->bLength < (sizeof(*asf1d) +
((asf1d->bSamFreqType == 0) ? 6 :
(asf1d->bSamFreqType * 3)))) {
DPRINTFN(11, "'asf1d' descriptor is too short\n");
asf1d = NULL;
continue;
}
}
}
if ((desc->bDescriptorType == UDESC_ENDPOINT) &&
(desc->bLength >= UEP_MINSIZE)) {
if (ed1 == NULL) {
ed1 = (void *)desc;
if (UE_GET_XFERTYPE(ed1->bmAttributes) != UE_ISOCHRONOUS) {
ed1 = NULL;
}
}
}
if ((desc->bDescriptorType == UDESC_CS_ENDPOINT) &&
(desc->bDescriptorSubtype == AS_GENERAL) &&
(desc->bLength >= sizeof(*sed))) {
if (sed == NULL) {
sed = (void *)desc;
}
}
if (audio_if && asid && asf1d && ed1 && sed) {
ep_dir = UE_GET_DIR(ed1->bEndpointAddress);
/* We ignore sync endpoint information until further. */
wFormat = UGETW(asid->wFormatTag);
bChannels = UAUDIO_MAX_CHAN(asf1d->bNrChannels);
bBitResolution = asf1d->bBitResolution;
if (asf1d->bSamFreqType == 0) {
DPRINTFN(16, "Sample rate: %d-%dHz\n",
UA_SAMP_LO(asf1d), UA_SAMP_HI(asf1d));
if ((rate >= UA_SAMP_LO(asf1d)) &&
(rate <= UA_SAMP_HI(asf1d))) {
goto found_rate;
}
} else {
for (x = 0; x < asf1d->bSamFreqType; x++) {
DPRINTFN(16, "Sample rate = %dHz\n",
UA_GETSAMP(asf1d, x));
if (rate == UA_GETSAMP(asf1d, x)) {
goto found_rate;
}
}
}
audio_if = 0;
continue;
found_rate:
for (p_fmt = uaudio_formats;
p_fmt->wFormat;
p_fmt++) {
if ((p_fmt->wFormat == wFormat) &&
(p_fmt->bPrecision == bBitResolution)) {
goto found_format;
}
}
audio_if = 0;
continue;
found_format:
if ((bChannels == channels) &&
(bBitResolution == bit_resolution)) {
chan = (ep_dir == UE_DIR_IN) ?
&sc->sc_rec_chan :
&sc->sc_play_chan;
if ((chan->valid == 0) && usbd_get_iface(udev, curidx)) {
chan->valid = 1;
#ifdef USB_DEBUG
uaudio_chan_dump_ep_desc(ed1);
uaudio_chan_dump_ep_desc(ed2);
if (sed->bmAttributes & UA_SED_FREQ_CONTROL) {
DPRINTFN(2, "FREQ_CONTROL\n");
}
if (sed->bmAttributes & UA_SED_PITCH_CONTROL) {
DPRINTFN(2, "PITCH_CONTROL\n");
}
#endif
DPRINTF("Sample rate = %dHz, channels = %d, "
"bits = %d, format = %s\n", rate, channels,
bit_resolution, p_fmt->description);
chan->sample_rate = rate;
chan->p_asid = asid;
chan->p_asf1d = asf1d;
chan->p_ed1 = ed1;
chan->p_ed2 = ed2;
chan->p_fmt = p_fmt;
chan->p_sed = sed;
chan->iface_index = curidx;
chan->iface_alt_index = alt_index;
if (ep_dir == UE_DIR_IN)
chan->usb_cfg =
uaudio_cfg_record;
else
chan->usb_cfg =
uaudio_cfg_play;
chan->sample_size = ((
UAUDIO_MAX_CHAN(chan->p_asf1d->bNrChannels) *
chan->p_asf1d->bBitResolution) / 8);
if (ep_dir == UE_DIR_IN &&
usbd_get_speed(udev) == USB_SPEED_FULL) {
uaudio_record_fix_fs(ed1,
chan->sample_size * (rate / 1000),
chan->sample_size * (rate / 4000));
}
if (sc->sc_sndstat_valid) {
sbuf_printf(&sc->sc_sndstat, "\n\t"
"mode %d.%d:(%s) %dch, %d/%dbit, %s, %dHz",
curidx, alt_index,
(ep_dir == UE_DIR_IN) ? "input" : "output",
asf1d->bNrChannels, asf1d->bBitResolution,
asf1d->bSubFrameSize * 8,
p_fmt->description, rate);
}
}
}
audio_if = 0;
continue;
}
}
}
/* This structure defines all the supported rates. */
static const uint32_t uaudio_rate_list[] = {
96000,
88000,
80000,
72000,
64000,
56000,
48000,
44100,
40000,
32000,
24000,
22050,
16000,
11025,
8000,
0
};
static void
uaudio_chan_fill_info(struct uaudio_softc *sc, struct usb_device *udev)
{
uint32_t rate = uaudio_default_rate;
uint8_t z;
uint8_t bits = uaudio_default_bits;
uint8_t y;
uint8_t channels = uaudio_default_channels;
uint8_t x;
bits -= (bits % 8);
if ((bits == 0) || (bits > 32)) {
/* set a valid value */
bits = 32;
}
if (channels == 0) {
switch (usbd_get_speed(udev)) {
case USB_SPEED_LOW:
case USB_SPEED_FULL:
/*
* Due to high bandwidth usage and problems
* with HIGH-speed split transactions we
* disable surround setups on FULL-speed USB
* by default
*/
channels = 2;
break;
default:
channels = 16;
break;
}
} else if (channels > 16) {
channels = 16;
}
if (sbuf_new(&sc->sc_sndstat, NULL, 4096, SBUF_AUTOEXTEND)) {
sc->sc_sndstat_valid = 1;
}
/* try to search for a valid config */
for (x = channels; x; x--) {
for (y = bits; y; y -= 8) {
/* try user defined rate, if any */
if (rate != 0)
uaudio_chan_fill_info_sub(sc, udev, rate, x, y);
/* try find a matching rate, if any */
for (z = 0; uaudio_rate_list[z]; z++) {
uaudio_chan_fill_info_sub(sc, udev, uaudio_rate_list[z], x, y);
if (sc->sc_rec_chan.valid &&
sc->sc_play_chan.valid) {
goto done;
}
}
}
}
done:
if (sc->sc_sndstat_valid) {
sbuf_finish(&sc->sc_sndstat);
}
}
static void
uaudio_chan_play_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct uaudio_chan *ch = usbd_xfer_softc(xfer);
struct usb_page_cache *pc;
uint32_t total;
uint32_t blockcount;
uint32_t n;
uint32_t offset;
int actlen;
int sumlen;
usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
if (ch->end == ch->start) {
DPRINTF("no buffer!\n");
return;
}
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
tr_transferred:
if (actlen < sumlen) {
DPRINTF("short transfer, "
"%d of %d bytes\n", actlen, sumlen);
}
chn_intr(ch->pcm_ch);
case USB_ST_SETUP:
if (ch->bytes_per_frame[1] > usbd_xfer_max_framelen(xfer)) {
DPRINTF("bytes per transfer, %d, "
"exceeds maximum, %d!\n",
ch->bytes_per_frame[1],
usbd_xfer_max_framelen(xfer));
break;
}
blockcount = ch->intr_frames;
/* setup number of frames */
usbd_xfer_set_frames(xfer, blockcount);
/* reset total length */
total = 0;
/* setup frame lengths */
for (n = 0; n != blockcount; n++) {
ch->sample_curr += ch->sample_rem;
if (ch->sample_curr >= ch->frames_per_second) {
ch->sample_curr -= ch->frames_per_second;
usbd_xfer_set_frame_len(xfer, n, ch->bytes_per_frame[1]);
total += ch->bytes_per_frame[1];
} else {
usbd_xfer_set_frame_len(xfer, n, ch->bytes_per_frame[0]);
total += ch->bytes_per_frame[0];
}
}
DPRINTFN(6, "transfer %d bytes\n", total);
offset = 0;
pc = usbd_xfer_get_frame(xfer, 0);
while (total > 0) {
n = (ch->end - ch->cur);
if (n > total) {
n = total;
}
usbd_copy_in(pc, offset, ch->cur, n);
total -= n;
ch->cur += n;
offset += n;
if (ch->cur >= ch->end) {
ch->cur = ch->start;
}
}
usbd_transfer_submit(xfer);
break;
default: /* Error */
if (error == USB_ERR_CANCELLED) {
break;
}
goto tr_transferred;
}
}
static void
uaudio_chan_record_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct uaudio_chan *ch = usbd_xfer_softc(xfer);
struct usb_page_cache *pc;
uint32_t n;
uint32_t m;
uint32_t blockcount;
uint32_t offset0;
uint32_t offset1;
uint32_t mfl;
int len;
int actlen;
int nframes;
usbd_xfer_status(xfer, &actlen, NULL, NULL, &nframes);
mfl = usbd_xfer_max_framelen(xfer);
if (ch->end == ch->start) {
DPRINTF("no buffer!\n");
return;
}
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
DPRINTFN(6, "transferred %d bytes\n", actlen);
offset0 = 0;
pc = usbd_xfer_get_frame(xfer, 0);
for (n = 0; n != nframes; n++) {
offset1 = offset0;
len = usbd_xfer_frame_len(xfer, n);
while (len > 0) {
m = (ch->end - ch->cur);
if (m > len) {
m = len;
}
usbd_copy_out(pc, offset1, ch->cur, m);
len -= m;
offset1 += m;
ch->cur += m;
if (ch->cur >= ch->end) {
ch->cur = ch->start;
}
}
offset0 += mfl;
}
chn_intr(ch->pcm_ch);
case USB_ST_SETUP:
tr_setup:
blockcount = ch->intr_frames;
usbd_xfer_set_frames(xfer, blockcount);
for (n = 0; n < blockcount; n++) {
usbd_xfer_set_frame_len(xfer, n, mfl);
}
usbd_transfer_submit(xfer);
break;
default: /* Error */
if (error == USB_ERR_CANCELLED) {
break;
}
goto tr_setup;
}
}
void *
uaudio_chan_init(struct uaudio_softc *sc, struct snd_dbuf *b,
struct pcm_channel *c, int dir)
{
struct uaudio_chan *ch = ((dir == PCMDIR_PLAY) ?
&sc->sc_play_chan : &sc->sc_rec_chan);
uint32_t buf_size;
uint32_t frames;
uint32_t format;
uint16_t fps;
uint8_t endpoint;
uint8_t blocks;
uint8_t iface_index;
uint8_t alt_index;
uint8_t fps_shift;
usb_error_t err;
fps = usbd_get_isoc_fps(sc->sc_udev);
if (fps < 8000) {
/* FULL speed USB */
frames = 8;
} else {
/* HIGH speed USB */
frames = UAUDIO_NFRAMES;
}
/* setup play/record format */
ch->pcm_cap.fmtlist = ch->pcm_format;
ch->pcm_format[0] = 0;
ch->pcm_format[1] = 0;
ch->pcm_cap.minspeed = ch->sample_rate;
ch->pcm_cap.maxspeed = ch->sample_rate;
/* setup mutex and PCM channel */
ch->pcm_ch = c;
ch->pcm_mtx = c->lock;
format = ch->p_fmt->freebsd_fmt;
switch (ch->p_asf1d->bNrChannels) {
case 2:
/* stereo */
format = SND_FORMAT(format, 2, 0);
break;
case 1:
/* mono */
format = SND_FORMAT(format, 1, 0);
break;
default:
/* surround and more */
format = feeder_matrix_default_format(
SND_FORMAT(format, ch->p_asf1d->bNrChannels, 0));
break;
}
ch->pcm_cap.fmtlist[0] = format;
ch->pcm_cap.fmtlist[1] = 0;
/* check if format is not supported */
if (format == 0) {
DPRINTF("The selected audio format is not supported\n");
goto error;
}
/* set alternate interface corresponding to the mode */
endpoint = ch->p_ed1->bEndpointAddress;
iface_index = ch->iface_index;
alt_index = ch->iface_alt_index;
DPRINTF("endpoint=0x%02x, speed=%d, iface=%d alt=%d\n",
endpoint, ch->sample_rate, iface_index, alt_index);
err = usbd_set_alt_interface_index(sc->sc_udev, iface_index, alt_index);
if (err) {
DPRINTF("setting of alternate index failed: %s!\n",
usbd_errstr(err));
goto error;
}
usbd_set_parent_iface(sc->sc_udev, iface_index,
sc->sc_mixer_iface_index);
/*
* Only set the sample rate if the channel reports that it
* supports the frequency control.
*/
if (ch->p_sed->bmAttributes & UA_SED_FREQ_CONTROL) {
if (uaudio_set_speed(sc->sc_udev, endpoint, ch->sample_rate)) {
/*
* If the endpoint is adaptive setting the speed may
* fail.
*/
DPRINTF("setting of sample rate failed! (continuing anyway)\n");
}
}
if (usbd_transfer_setup(sc->sc_udev, &iface_index, ch->xfer,
ch->usb_cfg, UAUDIO_NCHANBUFS, ch, ch->pcm_mtx)) {
DPRINTF("could not allocate USB transfers!\n");
goto error;
}
fps_shift = usbd_xfer_get_fps_shift(ch->xfer[0]);
/* down shift number of frames per second, if any */
fps >>= fps_shift;
frames >>= fps_shift;
/* bytes per frame should not be zero */
ch->bytes_per_frame[0] = ((ch->sample_rate / fps) * ch->sample_size);
ch->bytes_per_frame[1] = (((ch->sample_rate + fps - 1) / fps) * ch->sample_size);
/* setup data rate dithering, if any */
ch->frames_per_second = fps;
ch->sample_rem = ch->sample_rate % fps;
ch->sample_curr = 0;
ch->frames_per_second = fps;
/* compute required buffer size */
buf_size = (ch->bytes_per_frame[1] * frames);
ch->intr_size = buf_size;
ch->intr_frames = frames;
DPRINTF("fps=%d sample_rem=%d\n", fps, ch->sample_rem);
if (ch->intr_frames == 0) {
DPRINTF("frame shift is too high!\n");
goto error;
}
/* setup double buffering */
buf_size *= 2;
blocks = 2;
ch->buf = malloc(buf_size, M_DEVBUF, M_WAITOK | M_ZERO);
if (ch->buf == NULL)
goto error;
if (sndbuf_setup(b, ch->buf, buf_size) != 0)
goto error;
if (sndbuf_resize(b, blocks, ch->intr_size))
goto error;
ch->start = ch->buf;
ch->end = ch->buf + buf_size;
ch->cur = ch->buf;
ch->pcm_buf = b;
if (ch->pcm_mtx == NULL) {
DPRINTF("ERROR: PCM channels does not have a mutex!\n");
goto error;
}
return (ch);
error:
uaudio_chan_free(ch);
return (NULL);
}
int
uaudio_chan_free(struct uaudio_chan *ch)
{
if (ch->buf != NULL) {
free(ch->buf, M_DEVBUF);
ch->buf = NULL;
}
usbd_transfer_unsetup(ch->xfer, UAUDIO_NCHANBUFS);
ch->valid = 0;
return (0);
}
int
uaudio_chan_set_param_blocksize(struct uaudio_chan *ch, uint32_t blocksize)
{
return (ch->intr_size);
}
int
uaudio_chan_set_param_fragments(struct uaudio_chan *ch, uint32_t blocksize,
uint32_t blockcount)
{
return (1);
}
int
uaudio_chan_set_param_speed(struct uaudio_chan *ch, uint32_t speed)
{
if (speed != ch->sample_rate) {
DPRINTF("rate conversion required\n");
}
return (ch->sample_rate);
}
int
uaudio_chan_getptr(struct uaudio_chan *ch)
{
return (ch->cur - ch->start);
}
struct pcmchan_caps *
uaudio_chan_getcaps(struct uaudio_chan *ch)
{
return (&ch->pcm_cap);
}
static struct pcmchan_matrix uaudio_chan_matrix_swap_2_0 = {
.id = SND_CHN_MATRIX_DRV,
.channels = 2,
.ext = 0,
.map = {
/* Right */
[0] = {
.type = SND_CHN_T_FR,
.members =
SND_CHN_T_MASK_FR | SND_CHN_T_MASK_FC |
SND_CHN_T_MASK_LF | SND_CHN_T_MASK_BR |
SND_CHN_T_MASK_BC | SND_CHN_T_MASK_SR
},
/* Left */
[1] = {
.type = SND_CHN_T_FL,
.members =
SND_CHN_T_MASK_FL | SND_CHN_T_MASK_FC |
SND_CHN_T_MASK_LF | SND_CHN_T_MASK_BL |
SND_CHN_T_MASK_BC | SND_CHN_T_MASK_SL
},
[2] = {
.type = SND_CHN_T_MAX,
.members = 0
}
},
.mask = SND_CHN_T_MASK_FR | SND_CHN_T_MASK_FL,
.offset = { 1, 0, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1 }
};
struct pcmchan_matrix *
uaudio_chan_getmatrix(struct uaudio_chan *ch, uint32_t format)
{
struct uaudio_softc *sc;
sc = ch->priv_sc;
if (sc != NULL && sc->sc_uq_audio_swap_lr != 0 &&
AFMT_CHANNEL(format) == 2)
return (&uaudio_chan_matrix_swap_2_0);
return (feeder_matrix_format_map(format));
}
int
uaudio_chan_set_param_format(struct uaudio_chan *ch, uint32_t format)
{
ch->format = format;
return (0);
}
int
uaudio_chan_start(struct uaudio_chan *ch)
{
ch->cur = ch->start;
#if (UAUDIO_NCHANBUFS != 2)
#error "please update code"
#endif
if (ch->xfer[0]) {
usbd_transfer_start(ch->xfer[0]);
}
if (ch->xfer[1]) {
usbd_transfer_start(ch->xfer[1]);
}
return (0);
}
int
uaudio_chan_stop(struct uaudio_chan *ch)
{
#if (UAUDIO_NCHANBUFS != 2)
#error "please update code"
#endif
usbd_transfer_stop(ch->xfer[0]);
usbd_transfer_stop(ch->xfer[1]);
return (0);
}
/*========================================================================*
* AC - Audio Controller - routines
*========================================================================*/
static void
uaudio_mixer_add_ctl_sub(struct uaudio_softc *sc, struct uaudio_mixer_node *mc)
{
struct uaudio_mixer_node *p_mc_new =
malloc(sizeof(*p_mc_new), M_USBDEV, M_WAITOK);
if (p_mc_new != NULL) {
memcpy(p_mc_new, mc, sizeof(*p_mc_new));
p_mc_new->next = sc->sc_mixer_root;
sc->sc_mixer_root = p_mc_new;
sc->sc_mixer_count++;
} else {
DPRINTF("out of memory\n");
}
}
static void
uaudio_mixer_add_ctl(struct uaudio_softc *sc, struct uaudio_mixer_node *mc)
{
int32_t res;
if (mc->class < UAC_NCLASSES) {
DPRINTF("adding %s.%d\n",
uac_names[mc->class], mc->ctl);
} else {
DPRINTF("adding %d\n", mc->ctl);
}
if (mc->type == MIX_ON_OFF) {
mc->minval = 0;
mc->maxval = 1;
} else if (mc->type == MIX_SELECTOR) {
} else {
/* determine min and max values */
mc->minval = uaudio_mixer_get(sc->sc_udev, GET_MIN, mc);
mc->minval = uaudio_mixer_signext(mc->type, mc->minval);
mc->maxval = uaudio_mixer_get(sc->sc_udev, GET_MAX, mc);
mc->maxval = uaudio_mixer_signext(mc->type, mc->maxval);
/* check if max and min was swapped */
if (mc->maxval < mc->minval) {
res = mc->maxval;
mc->maxval = mc->minval;
mc->minval = res;
}
/* compute value range */
mc->mul = mc->maxval - mc->minval;
if (mc->mul == 0)
mc->mul = 1;
/* compute value alignment */
res = uaudio_mixer_get(sc->sc_udev, GET_RES, mc);
DPRINTF("Resolution = %d\n", (int)res);
}
uaudio_mixer_add_ctl_sub(sc, mc);
#ifdef USB_DEBUG
if (uaudio_debug > 2) {
uint8_t i;
for (i = 0; i < mc->nchan; i++) {
DPRINTF("[mix] wValue=%04x\n", mc->wValue[0]);
}
DPRINTF("[mix] wIndex=%04x type=%d ctl='%d' "
"min=%d max=%d\n",
mc->wIndex, mc->type, mc->ctl,
mc->minval, mc->maxval);
}
#endif
}
static void
uaudio_mixer_add_input(struct uaudio_softc *sc,
const struct uaudio_terminal_node *iot, int id)
{
#ifdef USB_DEBUG
const struct usb_audio_input_terminal *d = iot[id].u.it;
DPRINTFN(3, "bTerminalId=%d wTerminalType=0x%04x "
"bAssocTerminal=%d bNrChannels=%d wChannelConfig=%d "
"iChannelNames=%d\n",
d->bTerminalId, UGETW(d->wTerminalType), d->bAssocTerminal,
d->bNrChannels, UGETW(d->wChannelConfig),
d->iChannelNames);
#endif
}
static void
uaudio_mixer_add_output(struct uaudio_softc *sc,
const struct uaudio_terminal_node *iot, int id)
{
#ifdef USB_DEBUG
const struct usb_audio_output_terminal *d = iot[id].u.ot;
DPRINTFN(3, "bTerminalId=%d wTerminalType=0x%04x "
"bAssocTerminal=%d bSourceId=%d iTerminal=%d\n",
d->bTerminalId, UGETW(d->wTerminalType), d->bAssocTerminal,
d->bSourceId, d->iTerminal);
#endif
}
static void
uaudio_mixer_add_mixer(struct uaudio_softc *sc,
const struct uaudio_terminal_node *iot, int id)
{
struct uaudio_mixer_node mix;
const struct usb_audio_mixer_unit_0 *d0 = iot[id].u.mu;
const struct usb_audio_mixer_unit_1 *d1;
uint32_t bno; /* bit number */
uint32_t p; /* bit number accumulator */
uint32_t mo; /* matching outputs */
uint32_t mc; /* matching channels */
uint32_t ichs; /* input channels */
uint32_t ochs; /* output channels */
uint32_t c;
uint32_t chs; /* channels */
uint32_t i;
uint32_t o;
DPRINTFN(3, "bUnitId=%d bNrInPins=%d\n",
d0->bUnitId, d0->bNrInPins);
/* compute the number of input channels */
ichs = 0;
for (i = 0; i < d0->bNrInPins; i++) {
ichs += (uaudio_mixer_get_cluster(d0->baSourceId[i], iot)
.bNrChannels);
}
d1 = (const void *)(d0->baSourceId + d0->bNrInPins);
/* and the number of output channels */
ochs = d1->bNrChannels;
DPRINTFN(3, "ichs=%d ochs=%d\n", ichs, ochs);
memset(&mix, 0, sizeof(mix));
mix.wIndex = MAKE_WORD(d0->bUnitId, sc->sc_mixer_iface_no);
uaudio_mixer_determine_class(&iot[id], &mix);
mix.type = MIX_SIGNED_16;
if (uaudio_mixer_verify_desc(d0, ((ichs * ochs) + 7) / 8) == NULL) {
return;
}
for (p = i = 0; i < d0->bNrInPins; i++) {
chs = uaudio_mixer_get_cluster(d0->baSourceId[i], iot).bNrChannels;
mc = 0;
for (c = 0; c < chs; c++) {
mo = 0;
for (o = 0; o < ochs; o++) {
bno = ((p + c) * ochs) + o;
if (BIT_TEST(d1->bmControls, bno)) {
mo++;
}
}
if (mo == 1) {
mc++;
}
}
if ((mc == chs) && (chs <= MIX_MAX_CHAN)) {
/* repeat bit-scan */
mc = 0;
for (c = 0; c < chs; c++) {
for (o = 0; o < ochs; o++) {
bno = ((p + c) * ochs) + o;
if (BIT_TEST(d1->bmControls, bno)) {
mix.wValue[mc++] = MAKE_WORD(p + c + 1, o + 1);
}
}
}
mix.nchan = chs;
uaudio_mixer_add_ctl(sc, &mix);
} else {
/* XXX */
}
p += chs;
}
}
static void
uaudio_mixer_add_selector(struct uaudio_softc *sc,
const struct uaudio_terminal_node *iot, int id)
{
const struct usb_audio_selector_unit *d = iot[id].u.su;
struct uaudio_mixer_node mix;
uint16_t i;
DPRINTFN(3, "bUnitId=%d bNrInPins=%d\n",
d->bUnitId, d->bNrInPins);
if (d->bNrInPins == 0) {
return;
}
memset(&mix, 0, sizeof(mix));
mix.wIndex = MAKE_WORD(d->bUnitId, sc->sc_mixer_iface_no);
mix.wValue[0] = MAKE_WORD(0, 0);
uaudio_mixer_determine_class(&iot[id], &mix);
mix.nchan = 1;
mix.type = MIX_SELECTOR;
mix.ctl = SOUND_MIXER_NRDEVICES;
mix.minval = 1;
mix.maxval = d->bNrInPins;
if (mix.maxval > MAX_SELECTOR_INPUT_PIN) {
mix.maxval = MAX_SELECTOR_INPUT_PIN;
}
mix.mul = (mix.maxval - mix.minval);
for (i = 0; i < MAX_SELECTOR_INPUT_PIN; i++) {
mix.slctrtype[i] = SOUND_MIXER_NRDEVICES;
}
for (i = 0; i < mix.maxval; i++) {
mix.slctrtype[i] = uaudio_mixer_feature_name
(&iot[d->baSourceId[i]], &mix);
}
mix.class = 0; /* not used */
uaudio_mixer_add_ctl(sc, &mix);
}
static uint32_t
uaudio_mixer_feature_get_bmaControls(const struct usb_audio_feature_unit *d,
uint8_t index)
{
uint32_t temp = 0;
uint32_t offset = (index * d->bControlSize);
if (d->bControlSize > 0) {
temp |= d->bmaControls[offset];
if (d->bControlSize > 1) {
temp |= d->bmaControls[offset + 1] << 8;
if (d->bControlSize > 2) {
temp |= d->bmaControls[offset + 2] << 16;
if (d->bControlSize > 3) {
temp |= d->bmaControls[offset + 3] << 24;
}
}
}
}
return (temp);
}
static void
uaudio_mixer_add_feature(struct uaudio_softc *sc,
const struct uaudio_terminal_node *iot, int id)
{
const struct usb_audio_feature_unit *d = iot[id].u.fu;
struct uaudio_mixer_node mix;
uint32_t fumask;
uint32_t mmask;
uint32_t cmask;
uint16_t mixernumber;
uint8_t nchan;
uint8_t chan;
uint8_t ctl;
uint8_t i;
if (d->bControlSize == 0) {
return;
}
memset(&mix, 0, sizeof(mix));
nchan = (d->bLength - 7) / d->bControlSize;
mmask = uaudio_mixer_feature_get_bmaControls(d, 0);
cmask = 0;
if (nchan == 0) {
return;
}
/* figure out what we can control */
for (chan = 1; chan < nchan; chan++) {
DPRINTFN(10, "chan=%d mask=%x\n",
chan, uaudio_mixer_feature_get_bmaControls(d, chan));
cmask |= uaudio_mixer_feature_get_bmaControls(d, chan);
}
if (nchan > MIX_MAX_CHAN) {
nchan = MIX_MAX_CHAN;
}
mix.wIndex = MAKE_WORD(d->bUnitId, sc->sc_mixer_iface_no);
for (ctl = 1; ctl <= LOUDNESS_CONTROL; ctl++) {
fumask = FU_MASK(ctl);
DPRINTFN(5, "ctl=%d fumask=0x%04x\n",
ctl, fumask);
if (mmask & fumask) {
mix.nchan = 1;
mix.wValue[0] = MAKE_WORD(ctl, 0);
} else if (cmask & fumask) {
mix.nchan = nchan - 1;
for (i = 1; i < nchan; i++) {
if (uaudio_mixer_feature_get_bmaControls(d, i) & fumask)
mix.wValue[i - 1] = MAKE_WORD(ctl, i);
else
mix.wValue[i - 1] = -1;
}
} else {
continue;
}
mixernumber = uaudio_mixer_feature_name(&iot[id], &mix);
switch (ctl) {
case MUTE_CONTROL:
mix.type = MIX_ON_OFF;
mix.ctl = SOUND_MIXER_NRDEVICES;
break;
case VOLUME_CONTROL:
mix.type = MIX_SIGNED_16;
mix.ctl = mixernumber;
break;
case BASS_CONTROL:
mix.type = MIX_SIGNED_8;
mix.ctl = SOUND_MIXER_BASS;
break;
case MID_CONTROL:
mix.type = MIX_SIGNED_8;
mix.ctl = SOUND_MIXER_NRDEVICES; /* XXXXX */
break;
case TREBLE_CONTROL:
mix.type = MIX_SIGNED_8;
mix.ctl = SOUND_MIXER_TREBLE;
break;
case GRAPHIC_EQUALIZER_CONTROL:
continue; /* XXX don't add anything */
break;
case AGC_CONTROL:
mix.type = MIX_ON_OFF;
mix.ctl = SOUND_MIXER_NRDEVICES; /* XXXXX */
break;
case DELAY_CONTROL:
mix.type = MIX_UNSIGNED_16;
mix.ctl = SOUND_MIXER_NRDEVICES; /* XXXXX */
break;
case BASS_BOOST_CONTROL:
mix.type = MIX_ON_OFF;
mix.ctl = SOUND_MIXER_NRDEVICES; /* XXXXX */
break;
case LOUDNESS_CONTROL:
mix.type = MIX_ON_OFF;
mix.ctl = SOUND_MIXER_LOUD; /* Is this correct ? */
break;
default:
mix.type = MIX_UNKNOWN;
break;
}
if (mix.type != MIX_UNKNOWN) {
uaudio_mixer_add_ctl(sc, &mix);
}
}
}
static void
uaudio_mixer_add_processing_updown(struct uaudio_softc *sc,
const struct uaudio_terminal_node *iot, int id)
{
const struct usb_audio_processing_unit_0 *d0 = iot[id].u.pu;
const struct usb_audio_processing_unit_1 *d1 =
(const void *)(d0->baSourceId + d0->bNrInPins);
const struct usb_audio_processing_unit_updown *ud =
(const void *)(d1->bmControls + d1->bControlSize);
struct uaudio_mixer_node mix;
uint8_t i;
if (uaudio_mixer_verify_desc(d0, sizeof(*ud)) == NULL) {
return;
}
if (uaudio_mixer_verify_desc(d0, sizeof(*ud) + (2 * ud->bNrModes))
== NULL) {
return;
}
DPRINTFN(3, "bUnitId=%d bNrModes=%d\n",
d0->bUnitId, ud->bNrModes);
if (!(d1->bmControls[0] & UA_PROC_MASK(UD_MODE_SELECT_CONTROL))) {
DPRINTF("no mode select\n");
return;
}
memset(&mix, 0, sizeof(mix));
mix.wIndex = MAKE_WORD(d0->bUnitId, sc->sc_mixer_iface_no);
mix.nchan = 1;
mix.wValue[0] = MAKE_WORD(UD_MODE_SELECT_CONTROL, 0);
uaudio_mixer_determine_class(&iot[id], &mix);
mix.type = MIX_ON_OFF; /* XXX */
for (i = 0; i < ud->bNrModes; i++) {
DPRINTFN(3, "i=%d bm=0x%x\n", i, UGETW(ud->waModes[i]));
/* XXX */
}
uaudio_mixer_add_ctl(sc, &mix);
}
static void
uaudio_mixer_add_processing(struct uaudio_softc *sc,
const struct uaudio_terminal_node *iot, int id)
{
const struct usb_audio_processing_unit_0 *d0 = iot[id].u.pu;
const struct usb_audio_processing_unit_1 *d1 =
(const void *)(d0->baSourceId + d0->bNrInPins);
struct uaudio_mixer_node mix;
uint16_t ptype;
memset(&mix, 0, sizeof(mix));
ptype = UGETW(d0->wProcessType);
DPRINTFN(3, "wProcessType=%d bUnitId=%d "
"bNrInPins=%d\n", ptype, d0->bUnitId, d0->bNrInPins);
if (d1->bControlSize == 0) {
return;
}
if (d1->bmControls[0] & UA_PROC_ENABLE_MASK) {
mix.wIndex = MAKE_WORD(d0->bUnitId, sc->sc_mixer_iface_no);
mix.nchan = 1;
mix.wValue[0] = MAKE_WORD(XX_ENABLE_CONTROL, 0);
uaudio_mixer_determine_class(&iot[id], &mix);
mix.type = MIX_ON_OFF;
uaudio_mixer_add_ctl(sc, &mix);
}
switch (ptype) {
case UPDOWNMIX_PROCESS:
uaudio_mixer_add_processing_updown(sc, iot, id);
break;
case DOLBY_PROLOGIC_PROCESS:
case P3D_STEREO_EXTENDER_PROCESS:
case REVERBATION_PROCESS:
case CHORUS_PROCESS:
case DYN_RANGE_COMP_PROCESS:
default:
DPRINTF("unit %d, type=%d is not implemented\n",
d0->bUnitId, ptype);
break;
}
}
static void
uaudio_mixer_add_extension(struct uaudio_softc *sc,
const struct uaudio_terminal_node *iot, int id)
{
const struct usb_audio_extension_unit_0 *d0 = iot[id].u.eu;
const struct usb_audio_extension_unit_1 *d1 =
(const void *)(d0->baSourceId + d0->bNrInPins);
struct uaudio_mixer_node mix;
DPRINTFN(3, "bUnitId=%d bNrInPins=%d\n",
d0->bUnitId, d0->bNrInPins);
if (sc->sc_uq_au_no_xu) {
return;
}
if (d1->bControlSize == 0) {
return;
}
if (d1->bmControls[0] & UA_EXT_ENABLE_MASK) {
memset(&mix, 0, sizeof(mix));
mix.wIndex = MAKE_WORD(d0->bUnitId, sc->sc_mixer_iface_no);
mix.nchan = 1;
mix.wValue[0] = MAKE_WORD(UA_EXT_ENABLE, 0);
uaudio_mixer_determine_class(&iot[id], &mix);
mix.type = MIX_ON_OFF;
uaudio_mixer_add_ctl(sc, &mix);
}
}
static const void *
uaudio_mixer_verify_desc(const void *arg, uint32_t len)
{
const struct usb_audio_mixer_unit_1 *d1;
const struct usb_audio_extension_unit_1 *e1;
const struct usb_audio_processing_unit_1 *u1;
union {
const struct usb_descriptor *desc;
const struct usb_audio_input_terminal *it;
const struct usb_audio_output_terminal *ot;
const struct usb_audio_mixer_unit_0 *mu;
const struct usb_audio_selector_unit *su;
const struct usb_audio_feature_unit *fu;
const struct usb_audio_processing_unit_0 *pu;
const struct usb_audio_extension_unit_0 *eu;
} u;
u.desc = arg;
if (u.desc == NULL) {
goto error;
}
if (u.desc->bDescriptorType != UDESC_CS_INTERFACE) {
goto error;
}
switch (u.desc->bDescriptorSubtype) {
case UDESCSUB_AC_INPUT:
len += sizeof(*u.it);
break;
case UDESCSUB_AC_OUTPUT:
len += sizeof(*u.ot);
break;
case UDESCSUB_AC_MIXER:
len += sizeof(*u.mu);
if (u.desc->bLength < len) {
goto error;
}
len += u.mu->bNrInPins;
if (u.desc->bLength < len) {
goto error;
}
d1 = (const void *)(u.mu->baSourceId + u.mu->bNrInPins);
len += sizeof(*d1);
break;
case UDESCSUB_AC_SELECTOR:
len += sizeof(*u.su);
if (u.desc->bLength < len) {
goto error;
}
len += u.su->bNrInPins;
break;
case UDESCSUB_AC_FEATURE:
len += (sizeof(*u.fu) + 1);
break;
case UDESCSUB_AC_PROCESSING:
len += sizeof(*u.pu);
if (u.desc->bLength < len) {
goto error;
}
len += u.pu->bNrInPins;
if (u.desc->bLength < len) {
goto error;
}
u1 = (const void *)(u.pu->baSourceId + u.pu->bNrInPins);
len += sizeof(*u1);
if (u.desc->bLength < len) {
goto error;
}
len += u1->bControlSize;
break;
case UDESCSUB_AC_EXTENSION:
len += sizeof(*u.eu);
if (u.desc->bLength < len) {
goto error;
}
len += u.eu->bNrInPins;
if (u.desc->bLength < len) {
goto error;
}
e1 = (const void *)(u.eu->baSourceId + u.eu->bNrInPins);
len += sizeof(*e1);
if (u.desc->bLength < len) {
goto error;
}
len += e1->bControlSize;
break;
default:
goto error;
}
if (u.desc->bLength < len) {
goto error;
}
return (u.desc);
error:
if (u.desc) {
DPRINTF("invalid descriptor, type=%d, "
"sub_type=%d, len=%d of %d bytes\n",
u.desc->bDescriptorType,
u.desc->bDescriptorSubtype,
u.desc->bLength, len);
}
return (NULL);
}
#ifdef USB_DEBUG
static void
uaudio_mixer_dump_cluster(uint8_t id, const struct uaudio_terminal_node *iot)
{
static const char *channel_names[16] = {
"LEFT", "RIGHT", "CENTER", "LFE",
"LEFT_SURROUND", "RIGHT_SURROUND", "LEFT_CENTER", "RIGHT_CENTER",
"SURROUND", "LEFT_SIDE", "RIGHT_SIDE", "TOP",
"RESERVED12", "RESERVED13", "RESERVED14", "RESERVED15",
};
uint16_t cc;
uint8_t i;
const struct usb_audio_cluster cl = uaudio_mixer_get_cluster(id, iot);
cc = UGETW(cl.wChannelConfig);
DPRINTF("cluster: bNrChannels=%u iChannelNames=%u wChannelConfig="
"0x%04x:\n", cl.iChannelNames, cl.bNrChannels, cc);
for (i = 0; cc; i++) {
if (cc & 1) {
DPRINTF(" - %s\n", channel_names[i]);
}
cc >>= 1;
}
}
#endif
static struct usb_audio_cluster
uaudio_mixer_get_cluster(uint8_t id, const struct uaudio_terminal_node *iot)
{
struct usb_audio_cluster r;
const struct usb_descriptor *dp;
uint8_t i;
for (i = 0; i < UAUDIO_RECURSE_LIMIT; i++) { /* avoid infinite loops */
dp = iot[id].u.desc;
if (dp == NULL) {
goto error;
}
switch (dp->bDescriptorSubtype) {
case UDESCSUB_AC_INPUT:
r.bNrChannels = iot[id].u.it->bNrChannels;
r.wChannelConfig[0] = iot[id].u.it->wChannelConfig[0];
r.wChannelConfig[1] = iot[id].u.it->wChannelConfig[1];
r.iChannelNames = iot[id].u.it->iChannelNames;
goto done;
case UDESCSUB_AC_OUTPUT:
id = iot[id].u.ot->bSourceId;
break;
case UDESCSUB_AC_MIXER:
r = *(const struct usb_audio_cluster *)
&iot[id].u.mu->baSourceId[iot[id].u.mu->
bNrInPins];
goto done;
case UDESCSUB_AC_SELECTOR:
if (iot[id].u.su->bNrInPins > 0) {
/* XXX This is not really right */
id = iot[id].u.su->baSourceId[0];
}
break;
case UDESCSUB_AC_FEATURE:
id = iot[id].u.fu->bSourceId;
break;
case UDESCSUB_AC_PROCESSING:
r = *((const struct usb_audio_cluster *)
&iot[id].u.pu->baSourceId[iot[id].u.pu->
bNrInPins]);
goto done;
case UDESCSUB_AC_EXTENSION:
r = *((const struct usb_audio_cluster *)
&iot[id].u.eu->baSourceId[iot[id].u.eu->
bNrInPins]);
goto done;
default:
goto error;
}
}
error:
DPRINTF("bad data\n");
memset(&r, 0, sizeof(r));
done:
return (r);
}
#ifdef USB_DEBUG
struct uaudio_tt_to_string {
uint16_t terminal_type;
const char *desc;
};
static const struct uaudio_tt_to_string uaudio_tt_to_string[] = {
/* USB terminal types */
{UAT_UNDEFINED, "UAT_UNDEFINED"},
{UAT_STREAM, "UAT_STREAM"},
{UAT_VENDOR, "UAT_VENDOR"},
/* input terminal types */
{UATI_UNDEFINED, "UATI_UNDEFINED"},
{UATI_MICROPHONE, "UATI_MICROPHONE"},
{UATI_DESKMICROPHONE, "UATI_DESKMICROPHONE"},
{UATI_PERSONALMICROPHONE, "UATI_PERSONALMICROPHONE"},
{UATI_OMNIMICROPHONE, "UATI_OMNIMICROPHONE"},
{UATI_MICROPHONEARRAY, "UATI_MICROPHONEARRAY"},
{UATI_PROCMICROPHONEARR, "UATI_PROCMICROPHONEARR"},
/* output terminal types */
{UATO_UNDEFINED, "UATO_UNDEFINED"},
{UATO_SPEAKER, "UATO_SPEAKER"},
{UATO_HEADPHONES, "UATO_HEADPHONES"},
{UATO_DISPLAYAUDIO, "UATO_DISPLAYAUDIO"},
{UATO_DESKTOPSPEAKER, "UATO_DESKTOPSPEAKER"},
{UATO_ROOMSPEAKER, "UATO_ROOMSPEAKER"},
{UATO_COMMSPEAKER, "UATO_COMMSPEAKER"},
{UATO_SUBWOOFER, "UATO_SUBWOOFER"},
/* bidir terminal types */
{UATB_UNDEFINED, "UATB_UNDEFINED"},
{UATB_HANDSET, "UATB_HANDSET"},
{UATB_HEADSET, "UATB_HEADSET"},
{UATB_SPEAKERPHONE, "UATB_SPEAKERPHONE"},
{UATB_SPEAKERPHONEESUP, "UATB_SPEAKERPHONEESUP"},
{UATB_SPEAKERPHONEECANC, "UATB_SPEAKERPHONEECANC"},
/* telephony terminal types */
{UATT_UNDEFINED, "UATT_UNDEFINED"},
{UATT_PHONELINE, "UATT_PHONELINE"},
{UATT_TELEPHONE, "UATT_TELEPHONE"},
{UATT_DOWNLINEPHONE, "UATT_DOWNLINEPHONE"},
/* external terminal types */
{UATE_UNDEFINED, "UATE_UNDEFINED"},
{UATE_ANALOGCONN, "UATE_ANALOGCONN"},
{UATE_LINECONN, "UATE_LINECONN"},
{UATE_LEGACYCONN, "UATE_LEGACYCONN"},
{UATE_DIGITALAUIFC, "UATE_DIGITALAUIFC"},
{UATE_SPDIF, "UATE_SPDIF"},
{UATE_1394DA, "UATE_1394DA"},
{UATE_1394DV, "UATE_1394DV"},
/* embedded function terminal types */
{UATF_UNDEFINED, "UATF_UNDEFINED"},
{UATF_CALIBNOISE, "UATF_CALIBNOISE"},
{UATF_EQUNOISE, "UATF_EQUNOISE"},
{UATF_CDPLAYER, "UATF_CDPLAYER"},
{UATF_DAT, "UATF_DAT"},
{UATF_DCC, "UATF_DCC"},
{UATF_MINIDISK, "UATF_MINIDISK"},
{UATF_ANALOGTAPE, "UATF_ANALOGTAPE"},
{UATF_PHONOGRAPH, "UATF_PHONOGRAPH"},
{UATF_VCRAUDIO, "UATF_VCRAUDIO"},
{UATF_VIDEODISCAUDIO, "UATF_VIDEODISCAUDIO"},
{UATF_DVDAUDIO, "UATF_DVDAUDIO"},
{UATF_TVTUNERAUDIO, "UATF_TVTUNERAUDIO"},
{UATF_SATELLITE, "UATF_SATELLITE"},
{UATF_CABLETUNER, "UATF_CABLETUNER"},
{UATF_DSS, "UATF_DSS"},
{UATF_RADIORECV, "UATF_RADIORECV"},
{UATF_RADIOXMIT, "UATF_RADIOXMIT"},
{UATF_MULTITRACK, "UATF_MULTITRACK"},
{UATF_SYNTHESIZER, "UATF_SYNTHESIZER"},
/* unknown */
{0x0000, "UNKNOWN"},
};
static const char *
uaudio_mixer_get_terminal_name(uint16_t terminal_type)
{
const struct uaudio_tt_to_string *uat = uaudio_tt_to_string;
while (uat->terminal_type) {
if (uat->terminal_type == terminal_type) {
break;
}
uat++;
}
if (uat->terminal_type == 0) {
DPRINTF("unknown terminal type (0x%04x)", terminal_type);
}
return (uat->desc);
}
#endif
static uint16_t
uaudio_mixer_determine_class(const struct uaudio_terminal_node *iot,
struct uaudio_mixer_node *mix)
{
uint16_t terminal_type = 0x0000;
const struct uaudio_terminal_node *input[2];
const struct uaudio_terminal_node *output[2];
input[0] = uaudio_mixer_get_input(iot, 0);
input[1] = uaudio_mixer_get_input(iot, 1);
output[0] = uaudio_mixer_get_output(iot, 0);
output[1] = uaudio_mixer_get_output(iot, 1);
/*
* check if there is only
* one output terminal:
*/
if (output[0] && (!output[1])) {
terminal_type = UGETW(output[0]->u.ot->wTerminalType);
}
/*
* If the only output terminal is USB,
* the class is UAC_RECORD.
*/
if ((terminal_type & 0xff00) == (UAT_UNDEFINED & 0xff00)) {
mix->class = UAC_RECORD;
if (input[0] && (!input[1])) {
terminal_type = UGETW(input[0]->u.it->wTerminalType);
} else {
terminal_type = 0;
}
goto done;
}
/*
* if the unit is connected to just
* one input terminal, the
* class is UAC_INPUT:
*/
if (input[0] && (!input[1])) {
mix->class = UAC_INPUT;
terminal_type = UGETW(input[0]->u.it->wTerminalType);
goto done;
}
/*
* Otherwise, the class is UAC_OUTPUT.
*/
mix->class = UAC_OUTPUT;
done:
return (terminal_type);
}
struct uaudio_tt_to_feature {
uint16_t terminal_type;
uint16_t feature;
};
static const struct uaudio_tt_to_feature uaudio_tt_to_feature[] = {
{UAT_STREAM, SOUND_MIXER_PCM},
{UATI_MICROPHONE, SOUND_MIXER_MIC},
{UATI_DESKMICROPHONE, SOUND_MIXER_MIC},
{UATI_PERSONALMICROPHONE, SOUND_MIXER_MIC},
{UATI_OMNIMICROPHONE, SOUND_MIXER_MIC},
{UATI_MICROPHONEARRAY, SOUND_MIXER_MIC},
{UATI_PROCMICROPHONEARR, SOUND_MIXER_MIC},
{UATO_SPEAKER, SOUND_MIXER_SPEAKER},
{UATO_DESKTOPSPEAKER, SOUND_MIXER_SPEAKER},
{UATO_ROOMSPEAKER, SOUND_MIXER_SPEAKER},
{UATO_COMMSPEAKER, SOUND_MIXER_SPEAKER},
{UATE_ANALOGCONN, SOUND_MIXER_LINE},
{UATE_LINECONN, SOUND_MIXER_LINE},
{UATE_LEGACYCONN, SOUND_MIXER_LINE},
{UATE_DIGITALAUIFC, SOUND_MIXER_ALTPCM},
{UATE_SPDIF, SOUND_MIXER_ALTPCM},
{UATE_1394DA, SOUND_MIXER_ALTPCM},
{UATE_1394DV, SOUND_MIXER_ALTPCM},
{UATF_CDPLAYER, SOUND_MIXER_CD},
{UATF_SYNTHESIZER, SOUND_MIXER_SYNTH},
{UATF_VIDEODISCAUDIO, SOUND_MIXER_VIDEO},
{UATF_DVDAUDIO, SOUND_MIXER_VIDEO},
{UATF_TVTUNERAUDIO, SOUND_MIXER_VIDEO},
/* telephony terminal types */
{UATT_UNDEFINED, SOUND_MIXER_PHONEIN}, /* SOUND_MIXER_PHONEOUT */
{UATT_PHONELINE, SOUND_MIXER_PHONEIN}, /* SOUND_MIXER_PHONEOUT */
{UATT_TELEPHONE, SOUND_MIXER_PHONEIN}, /* SOUND_MIXER_PHONEOUT */
{UATT_DOWNLINEPHONE, SOUND_MIXER_PHONEIN}, /* SOUND_MIXER_PHONEOUT */
{UATF_RADIORECV, SOUND_MIXER_RADIO},
{UATF_RADIOXMIT, SOUND_MIXER_RADIO},
{UAT_UNDEFINED, SOUND_MIXER_VOLUME},
{UAT_VENDOR, SOUND_MIXER_VOLUME},
{UATI_UNDEFINED, SOUND_MIXER_VOLUME},
/* output terminal types */
{UATO_UNDEFINED, SOUND_MIXER_VOLUME},
{UATO_DISPLAYAUDIO, SOUND_MIXER_VOLUME},
{UATO_SUBWOOFER, SOUND_MIXER_VOLUME},
{UATO_HEADPHONES, SOUND_MIXER_VOLUME},
/* bidir terminal types */
{UATB_UNDEFINED, SOUND_MIXER_VOLUME},
{UATB_HANDSET, SOUND_MIXER_VOLUME},
{UATB_HEADSET, SOUND_MIXER_VOLUME},
{UATB_SPEAKERPHONE, SOUND_MIXER_VOLUME},
{UATB_SPEAKERPHONEESUP, SOUND_MIXER_VOLUME},
{UATB_SPEAKERPHONEECANC, SOUND_MIXER_VOLUME},
/* external terminal types */
{UATE_UNDEFINED, SOUND_MIXER_VOLUME},
/* embedded function terminal types */
{UATF_UNDEFINED, SOUND_MIXER_VOLUME},
{UATF_CALIBNOISE, SOUND_MIXER_VOLUME},
{UATF_EQUNOISE, SOUND_MIXER_VOLUME},
{UATF_DAT, SOUND_MIXER_VOLUME},
{UATF_DCC, SOUND_MIXER_VOLUME},
{UATF_MINIDISK, SOUND_MIXER_VOLUME},
{UATF_ANALOGTAPE, SOUND_MIXER_VOLUME},
{UATF_PHONOGRAPH, SOUND_MIXER_VOLUME},
{UATF_VCRAUDIO, SOUND_MIXER_VOLUME},
{UATF_SATELLITE, SOUND_MIXER_VOLUME},
{UATF_CABLETUNER, SOUND_MIXER_VOLUME},
{UATF_DSS, SOUND_MIXER_VOLUME},
{UATF_MULTITRACK, SOUND_MIXER_VOLUME},
{0xffff, SOUND_MIXER_VOLUME},
/* default */
{0x0000, SOUND_MIXER_VOLUME},
};
static uint16_t
uaudio_mixer_feature_name(const struct uaudio_terminal_node *iot,
struct uaudio_mixer_node *mix)
{
const struct uaudio_tt_to_feature *uat = uaudio_tt_to_feature;
uint16_t terminal_type = uaudio_mixer_determine_class(iot, mix);
if ((mix->class == UAC_RECORD) && (terminal_type == 0)) {
return (SOUND_MIXER_IMIX);
}
while (uat->terminal_type) {
if (uat->terminal_type == terminal_type) {
break;
}
uat++;
}
DPRINTF("terminal_type=%s (0x%04x) -> %d\n",
uaudio_mixer_get_terminal_name(terminal_type),
terminal_type, uat->feature);
return (uat->feature);
}
const static struct uaudio_terminal_node *
uaudio_mixer_get_input(const struct uaudio_terminal_node *iot, uint8_t index)
{
struct uaudio_terminal_node *root = iot->root;
uint8_t n;
n = iot->usr.id_max;
do {
if (iot->usr.bit_input[n / 8] & (1 << (n % 8))) {
if (!index--) {
return (root + n);
}
}
} while (n--);
return (NULL);
}
const static struct uaudio_terminal_node *
uaudio_mixer_get_output(const struct uaudio_terminal_node *iot, uint8_t index)
{
struct uaudio_terminal_node *root = iot->root;
uint8_t n;
n = iot->usr.id_max;
do {
if (iot->usr.bit_output[n / 8] & (1 << (n % 8))) {
if (!index--) {
return (root + n);
}
}
} while (n--);
return (NULL);
}
static void
uaudio_mixer_find_inputs_sub(struct uaudio_terminal_node *root,
const uint8_t *p_id, uint8_t n_id,
struct uaudio_search_result *info)
{
struct uaudio_terminal_node *iot;
uint8_t n;
uint8_t i;
if (info->recurse_level >= UAUDIO_RECURSE_LIMIT) {
return;
}
info->recurse_level++;
for (n = 0; n < n_id; n++) {
i = p_id[n];
if (info->bit_visited[i / 8] & (1 << (i % 8))) {
/* don't go into a circle */
DPRINTF("avoided going into a circle at id=%d!\n", i);
continue;
} else {
info->bit_visited[i / 8] |= (1 << (i % 8));
}
iot = (root + i);
if (iot->u.desc == NULL) {
continue;
}
switch (iot->u.desc->bDescriptorSubtype) {
case UDESCSUB_AC_INPUT:
info->bit_input[i / 8] |= (1 << (i % 8));
break;
case UDESCSUB_AC_FEATURE:
uaudio_mixer_find_inputs_sub
(root, &iot->u.fu->bSourceId, 1, info);
break;
case UDESCSUB_AC_OUTPUT:
uaudio_mixer_find_inputs_sub
(root, &iot->u.ot->bSourceId, 1, info);
break;
case UDESCSUB_AC_MIXER:
uaudio_mixer_find_inputs_sub
(root, iot->u.mu->baSourceId,
iot->u.mu->bNrInPins, info);
break;
case UDESCSUB_AC_SELECTOR:
uaudio_mixer_find_inputs_sub
(root, iot->u.su->baSourceId,
iot->u.su->bNrInPins, info);
break;
case UDESCSUB_AC_PROCESSING:
uaudio_mixer_find_inputs_sub
(root, iot->u.pu->baSourceId,
iot->u.pu->bNrInPins, info);
break;
case UDESCSUB_AC_EXTENSION:
uaudio_mixer_find_inputs_sub
(root, iot->u.eu->baSourceId,
iot->u.eu->bNrInPins, info);
break;
case UDESCSUB_AC_HEADER:
default:
break;
}
}
info->recurse_level--;
}
static void
uaudio_mixer_find_outputs_sub(struct uaudio_terminal_node *root, uint8_t id,
uint8_t n_id, struct uaudio_search_result *info)
{
struct uaudio_terminal_node *iot = (root + id);
uint8_t j;
j = n_id;
do {
if ((j != id) && ((root + j)->u.desc) &&
((root + j)->u.desc->bDescriptorSubtype == UDESCSUB_AC_OUTPUT)) {
/*
* "j" (output) <--- virtual wire <--- "id" (input)
*
* if "j" has "id" on the input, then "id" have "j" on
* the output, because they are connected:
*/
if ((root + j)->usr.bit_input[id / 8] & (1 << (id % 8))) {
iot->usr.bit_output[j / 8] |= (1 << (j % 8));
}
}
} while (j--);
}
static void
uaudio_mixer_fill_info(struct uaudio_softc *sc, struct usb_device *udev,
void *desc)
{
const struct usb_audio_control_descriptor *acdp;
struct usb_config_descriptor *cd = usbd_get_config_descriptor(udev);
const struct usb_descriptor *dp;
const struct usb_audio_unit *au;
struct uaudio_terminal_node *iot = NULL;
uint16_t wTotalLen;
uint8_t ID_max = 0; /* inclusive */
uint8_t i;
desc = usb_desc_foreach(cd, desc);
if (desc == NULL) {
DPRINTF("no Audio Control header\n");
goto done;
}
acdp = desc;
if ((acdp->bLength < sizeof(*acdp)) ||
(acdp->bDescriptorType != UDESC_CS_INTERFACE) ||
(acdp->bDescriptorSubtype != UDESCSUB_AC_HEADER)) {
DPRINTF("invalid Audio Control header\n");
goto done;
}
/* "wTotalLen" is allowed to be corrupt */
wTotalLen = UGETW(acdp->wTotalLength) - acdp->bLength;
/* get USB audio revision */
sc->sc_audio_rev = UGETW(acdp->bcdADC);
DPRINTFN(3, "found AC header, vers=%03x, len=%d\n",
sc->sc_audio_rev, wTotalLen);
if (sc->sc_audio_rev != UAUDIO_VERSION) {
if (sc->sc_uq_bad_adc) {
} else {
DPRINTF("invalid audio version\n");
goto done;
}
}
iot = malloc(sizeof(struct uaudio_terminal_node) * 256, M_TEMP,
M_WAITOK | M_ZERO);
if (iot == NULL) {
DPRINTF("no memory!\n");
goto done;
}
while ((desc = usb_desc_foreach(cd, desc))) {
dp = desc;
if (dp->bLength > wTotalLen) {
break;
} else {
wTotalLen -= dp->bLength;
}
au = uaudio_mixer_verify_desc(dp, 0);
if (au) {
iot[au->bUnitId].u.desc = (const void *)au;
if (au->bUnitId > ID_max) {
ID_max = au->bUnitId;
}
}
}
DPRINTF("Maximum ID=%d\n", ID_max);
/*
* determine sourcing inputs for
* all nodes in the tree:
*/
i = ID_max;
do {
uaudio_mixer_find_inputs_sub(iot, &i, 1, &((iot + i)->usr));
} while (i--);
/*
* determine outputs for
* all nodes in the tree:
*/
i = ID_max;
do {
uaudio_mixer_find_outputs_sub(iot, i, ID_max, &((iot + i)->usr));
} while (i--);
/* set "id_max" and "root" */
i = ID_max;
do {
(iot + i)->usr.id_max = ID_max;
(iot + i)->root = iot;
} while (i--);
#ifdef USB_DEBUG
i = ID_max;
do {
uint8_t j;
if (iot[i].u.desc == NULL) {
continue;
}
DPRINTF("id %d:\n", i);
switch (iot[i].u.desc->bDescriptorSubtype) {
case UDESCSUB_AC_INPUT:
DPRINTF(" - AC_INPUT type=%s\n",
uaudio_mixer_get_terminal_name
(UGETW(iot[i].u.it->wTerminalType)));
uaudio_mixer_dump_cluster(i, iot);
break;
case UDESCSUB_AC_OUTPUT:
DPRINTF(" - AC_OUTPUT type=%s "
"src=%d\n", uaudio_mixer_get_terminal_name
(UGETW(iot[i].u.ot->wTerminalType)),
iot[i].u.ot->bSourceId);
break;
case UDESCSUB_AC_MIXER:
DPRINTF(" - AC_MIXER src:\n");
for (j = 0; j < iot[i].u.mu->bNrInPins; j++) {
DPRINTF(" - %d\n", iot[i].u.mu->baSourceId[j]);
}
uaudio_mixer_dump_cluster(i, iot);
break;
case UDESCSUB_AC_SELECTOR:
DPRINTF(" - AC_SELECTOR src:\n");
for (j = 0; j < iot[i].u.su->bNrInPins; j++) {
DPRINTF(" - %d\n", iot[i].u.su->baSourceId[j]);
}
break;
case UDESCSUB_AC_FEATURE:
DPRINTF(" - AC_FEATURE src=%d\n", iot[i].u.fu->bSourceId);
break;
case UDESCSUB_AC_PROCESSING:
DPRINTF(" - AC_PROCESSING src:\n");
for (j = 0; j < iot[i].u.pu->bNrInPins; j++) {
DPRINTF(" - %d\n", iot[i].u.pu->baSourceId[j]);
}
uaudio_mixer_dump_cluster(i, iot);
break;
case UDESCSUB_AC_EXTENSION:
DPRINTF(" - AC_EXTENSION src:\n");
for (j = 0; j < iot[i].u.eu->bNrInPins; j++) {
DPRINTF("%d ", iot[i].u.eu->baSourceId[j]);
}
uaudio_mixer_dump_cluster(i, iot);
break;
default:
DPRINTF("unknown audio control (subtype=%d)\n",
iot[i].u.desc->bDescriptorSubtype);
}
DPRINTF("Inputs to this ID are:\n");
j = ID_max;
do {
if (iot[i].usr.bit_input[j / 8] & (1 << (j % 8))) {
DPRINTF(" -- ID=%d\n", j);
}
} while (j--);
DPRINTF("Outputs from this ID are:\n");
j = ID_max;
do {
if (iot[i].usr.bit_output[j / 8] & (1 << (j % 8))) {
DPRINTF(" -- ID=%d\n", j);
}
} while (j--);
} while (i--);
#endif
/*
* scan the config to create a linked
* list of "mixer" nodes:
*/
i = ID_max;
do {
dp = iot[i].u.desc;
if (dp == NULL) {
continue;
}
DPRINTFN(11, "id=%d subtype=%d\n",
i, dp->bDescriptorSubtype);
switch (dp->bDescriptorSubtype) {
case UDESCSUB_AC_HEADER:
DPRINTF("unexpected AC header\n");
break;
case UDESCSUB_AC_INPUT:
uaudio_mixer_add_input(sc, iot, i);
break;
case UDESCSUB_AC_OUTPUT:
uaudio_mixer_add_output(sc, iot, i);
break;
case UDESCSUB_AC_MIXER:
uaudio_mixer_add_mixer(sc, iot, i);
break;
case UDESCSUB_AC_SELECTOR:
uaudio_mixer_add_selector(sc, iot, i);
break;
case UDESCSUB_AC_FEATURE:
uaudio_mixer_add_feature(sc, iot, i);
break;
case UDESCSUB_AC_PROCESSING:
uaudio_mixer_add_processing(sc, iot, i);
break;
case UDESCSUB_AC_EXTENSION:
uaudio_mixer_add_extension(sc, iot, i);
break;
default:
DPRINTF("bad AC desc subtype=0x%02x\n",
dp->bDescriptorSubtype);
break;
}
} while (i--);
done:
if (iot) {
free(iot, M_TEMP);
}
}
static uint16_t
uaudio_mixer_get(struct usb_device *udev, uint8_t what,
struct uaudio_mixer_node *mc)
{
struct usb_device_request req;
uint16_t val;
uint16_t len = MIX_SIZE(mc->type);
uint8_t data[4];
usb_error_t err;
if (mc->wValue[0] == -1) {
return (0);
}
req.bmRequestType = UT_READ_CLASS_INTERFACE;
req.bRequest = what;
USETW(req.wValue, mc->wValue[0]);
USETW(req.wIndex, mc->wIndex);
USETW(req.wLength, len);
err = usbd_do_request(udev, NULL, &req, data);
if (err) {
DPRINTF("err=%s\n", usbd_errstr(err));
return (0);
}
if (len < 1) {
data[0] = 0;
}
if (len < 2) {
data[1] = 0;
}
val = (data[0] | (data[1] << 8));
DPRINTFN(3, "val=%d\n", val);
return (val);
}
static void
uaudio_mixer_write_cfg_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct usb_device_request req;
struct uaudio_softc *sc = usbd_xfer_softc(xfer);
struct uaudio_mixer_node *mc = sc->sc_mixer_curr;
struct usb_page_cache *pc;
uint16_t len;
uint8_t repeat = 1;
uint8_t update;
uint8_t chan;
uint8_t buf[2];
DPRINTF("\n");
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
tr_transferred:
case USB_ST_SETUP:
tr_setup:
if (mc == NULL) {
mc = sc->sc_mixer_root;
sc->sc_mixer_curr = mc;
sc->sc_mixer_chan = 0;
repeat = 0;
}
while (mc) {
while (sc->sc_mixer_chan < mc->nchan) {
len = MIX_SIZE(mc->type);
chan = sc->sc_mixer_chan;
sc->sc_mixer_chan++;
update = ((mc->update[chan / 8] & (1 << (chan % 8))) &&
(mc->wValue[chan] != -1));
mc->update[chan / 8] &= ~(1 << (chan % 8));
if (update) {
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = SET_CUR;
USETW(req.wValue, mc->wValue[chan]);
USETW(req.wIndex, mc->wIndex);
USETW(req.wLength, len);
if (len > 0) {
buf[0] = (mc->wData[chan] & 0xFF);
}
if (len > 1) {
buf[1] = (mc->wData[chan] >> 8) & 0xFF;
}
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_in(pc, 0, &req, sizeof(req));
pc = usbd_xfer_get_frame(xfer, 1);
usbd_copy_in(pc, 0, buf, len);
usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
usbd_xfer_set_frame_len(xfer, 1, len);
usbd_xfer_set_frames(xfer, len ? 2 : 1);
usbd_transfer_submit(xfer);
return;
}
}
mc = mc->next;
sc->sc_mixer_curr = mc;
sc->sc_mixer_chan = 0;
}
if (repeat) {
goto tr_setup;
}
break;
default: /* Error */
DPRINTF("error=%s\n", usbd_errstr(error));
if (error == USB_ERR_CANCELLED) {
/* do nothing - we are detaching */
break;
}
goto tr_transferred;
}
}
static usb_error_t
uaudio_set_speed(struct usb_device *udev, uint8_t endpt, uint32_t speed)
{
struct usb_device_request req;
uint8_t data[3];
DPRINTFN(6, "endpt=%d speed=%u\n", endpt, speed);
req.bmRequestType = UT_WRITE_CLASS_ENDPOINT;
req.bRequest = SET_CUR;
USETW2(req.wValue, SAMPLING_FREQ_CONTROL, 0);
USETW(req.wIndex, endpt);
USETW(req.wLength, 3);
data[0] = speed;
data[1] = speed >> 8;
data[2] = speed >> 16;
return (usbd_do_request(udev, NULL, &req, data));
}
static int
uaudio_mixer_signext(uint8_t type, int val)
{
if (!MIX_UNSIGNED(type)) {
if (MIX_SIZE(type) == 2) {
val = (int16_t)val;
} else {
val = (int8_t)val;
}
}
return (val);
}
static int
uaudio_mixer_bsd2value(struct uaudio_mixer_node *mc, int32_t val)
{
if (mc->type == MIX_ON_OFF) {
val = (val != 0);
} else if (mc->type == MIX_SELECTOR) {
if ((val < mc->minval) ||
(val > mc->maxval)) {
val = mc->minval;
}
} else {
/* compute actual volume */
val = (val * mc->mul) / 255;
/* add lower offset */
val = val + mc->minval;
/* make sure we don't write a value out of range */
if (val > mc->maxval)
val = mc->maxval;
else if (val < mc->minval)
val = mc->minval;
}
DPRINTFN(6, "type=0x%03x val=%d min=%d max=%d val=%d\n",
mc->type, val, mc->minval, mc->maxval, val);
return (val);
}
static void
uaudio_mixer_ctl_set(struct uaudio_softc *sc, struct uaudio_mixer_node *mc,
uint8_t chan, int32_t val)
{
val = uaudio_mixer_bsd2value(mc, val);
mc->update[chan / 8] |= (1 << (chan % 8));
mc->wData[chan] = val;
/* start the transfer, if not already started */
usbd_transfer_start(sc->sc_mixer_xfer[0]);
}
static void
uaudio_mixer_init(struct uaudio_softc *sc)
{
struct uaudio_mixer_node *mc;
int32_t i;
for (mc = sc->sc_mixer_root; mc;
mc = mc->next) {
if (mc->ctl != SOUND_MIXER_NRDEVICES) {
/*
* Set device mask bits. See
* /usr/include/machine/soundcard.h
*/
sc->sc_mix_info |= (1 << mc->ctl);
}
if ((mc->ctl == SOUND_MIXER_NRDEVICES) &&
(mc->type == MIX_SELECTOR)) {
for (i = mc->minval; (i > 0) && (i <= mc->maxval); i++) {
if (mc->slctrtype[i - 1] == SOUND_MIXER_NRDEVICES) {
continue;
}
sc->sc_recsrc_info |= 1 << mc->slctrtype[i - 1];
}
}
}
}
int
uaudio_mixer_init_sub(struct uaudio_softc *sc, struct snd_mixer *m)
{
DPRINTF("\n");
if (usbd_transfer_setup(sc->sc_udev, &sc->sc_mixer_iface_index,
sc->sc_mixer_xfer, uaudio_mixer_config, 1, sc,
mixer_get_lock(m))) {
DPRINTFN(0, "could not allocate USB "
"transfer for audio mixer!\n");
return (ENOMEM);
}
if (!(sc->sc_mix_info & SOUND_MASK_VOLUME)) {
mix_setparentchild(m, SOUND_MIXER_VOLUME, SOUND_MASK_PCM);
mix_setrealdev(m, SOUND_MIXER_VOLUME, SOUND_MIXER_NONE);
}
mix_setdevs(m, sc->sc_mix_info);
mix_setrecdevs(m, sc->sc_recsrc_info);
return (0);
}
int
uaudio_mixer_uninit_sub(struct uaudio_softc *sc)
{
DPRINTF("\n");
usbd_transfer_unsetup(sc->sc_mixer_xfer, 1);
return (0);
}
void
uaudio_mixer_set(struct uaudio_softc *sc, unsigned type,
unsigned left, unsigned right)
{
struct uaudio_mixer_node *mc;
for (mc = sc->sc_mixer_root; mc;
mc = mc->next) {
if (mc->ctl == type) {
if (mc->nchan == 2) {
/* set Right */
uaudio_mixer_ctl_set(sc, mc, 1, (int)(right * 255) / 100);
}
/* set Left or Mono */
uaudio_mixer_ctl_set(sc, mc, 0, (int)(left * 255) / 100);
}
}
}
uint32_t
uaudio_mixer_setrecsrc(struct uaudio_softc *sc, uint32_t src)
{
struct uaudio_mixer_node *mc;
uint32_t mask;
uint32_t temp;
int32_t i;
for (mc = sc->sc_mixer_root; mc;
mc = mc->next) {
if ((mc->ctl == SOUND_MIXER_NRDEVICES) &&
(mc->type == MIX_SELECTOR)) {
/* compute selector mask */
mask = 0;
for (i = mc->minval; (i > 0) && (i <= mc->maxval); i++) {
mask |= (1 << mc->slctrtype[i - 1]);
}
temp = mask & src;
if (temp == 0) {
continue;
}
/* find the first set bit */
temp = (-temp) & temp;
/* update "src" */
src &= ~mask;
src |= temp;
for (i = mc->minval; (i > 0) && (i <= mc->maxval); i++) {
if (temp != (1 << mc->slctrtype[i - 1])) {
continue;
}
uaudio_mixer_ctl_set(sc, mc, 0, i);
break;
}
}
}
return (src);
}
/*========================================================================*
* MIDI support routines
*========================================================================*/
static void
umidi_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct umidi_chan *chan = usbd_xfer_softc(xfer);
struct umidi_sub_chan *sub;
struct usb_page_cache *pc;
uint8_t buf[4];
uint8_t cmd_len;
uint8_t cn;
uint16_t pos;
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
DPRINTF("actlen=%d bytes\n", actlen);
pos = 0;
pc = usbd_xfer_get_frame(xfer, 0);
while (actlen >= 4) {
/* copy out the MIDI data */
usbd_copy_out(pc, pos, buf, 4);
/* command length */
cmd_len = umidi_cmd_to_len[buf[0] & 0xF];
/* cable number */
cn = buf[0] >> 4;
/*
* Lookup sub-channel. The index is range
* checked below.
*/
sub = &chan->sub[cn];
if ((cmd_len != 0) &&
(cn < chan->max_cable) &&
(sub->read_open != 0)) {
/* Send data to the application */
usb_fifo_put_data_linear(
sub->fifo.fp[USB_FIFO_RX],
buf + 1, cmd_len, 1);
}
actlen -= 4;
pos += 4;
}
case USB_ST_SETUP:
DPRINTF("start\n");
tr_setup:
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
break;
default:
DPRINTF("error=%s\n", usbd_errstr(error));
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
break;
}
}
/*
* The following statemachine, that converts MIDI commands to
* USB MIDI packets, derives from Linux's usbmidi.c, which
* was written by "Clemens Ladisch":
*
* Returns:
* 0: No command
* Else: Command is complete
*/
static uint8_t
umidi_convert_to_usb(struct umidi_sub_chan *sub, uint8_t cn, uint8_t b)
{
uint8_t p0 = (cn << 4);
if (b >= 0xf8) {
sub->temp_0[0] = p0 | 0x0f;
sub->temp_0[1] = b;
sub->temp_0[2] = 0;
sub->temp_0[3] = 0;
sub->temp_cmd = sub->temp_0;
return (1);
} else if (b >= 0xf0) {
switch (b) {
case 0xf0: /* system exclusive begin */
sub->temp_1[1] = b;
sub->state = UMIDI_ST_SYSEX_1;
break;
case 0xf1: /* MIDI time code */
case 0xf3: /* song select */
sub->temp_1[1] = b;
sub->state = UMIDI_ST_1PARAM;
break;
case 0xf2: /* song position pointer */
sub->temp_1[1] = b;
sub->state = UMIDI_ST_2PARAM_1;
break;
case 0xf4: /* unknown */
case 0xf5: /* unknown */
sub->state = UMIDI_ST_UNKNOWN;
break;
case 0xf6: /* tune request */
sub->temp_1[0] = p0 | 0x05;
sub->temp_1[1] = 0xf6;
sub->temp_1[2] = 0;
sub->temp_1[3] = 0;
sub->temp_cmd = sub->temp_1;
sub->state = UMIDI_ST_UNKNOWN;
return (1);
case 0xf7: /* system exclusive end */
switch (sub->state) {
case UMIDI_ST_SYSEX_0:
sub->temp_1[0] = p0 | 0x05;
sub->temp_1[1] = 0xf7;
sub->temp_1[2] = 0;
sub->temp_1[3] = 0;
sub->temp_cmd = sub->temp_1;
sub->state = UMIDI_ST_UNKNOWN;
return (1);
case UMIDI_ST_SYSEX_1:
sub->temp_1[0] = p0 | 0x06;
sub->temp_1[2] = 0xf7;
sub->temp_1[3] = 0;
sub->temp_cmd = sub->temp_1;
sub->state = UMIDI_ST_UNKNOWN;
return (1);
case UMIDI_ST_SYSEX_2:
sub->temp_1[0] = p0 | 0x07;
sub->temp_1[3] = 0xf7;
sub->temp_cmd = sub->temp_1;
sub->state = UMIDI_ST_UNKNOWN;
return (1);
}
sub->state = UMIDI_ST_UNKNOWN;
break;
}
} else if (b >= 0x80) {
sub->temp_1[1] = b;
if ((b >= 0xc0) && (b <= 0xdf)) {
sub->state = UMIDI_ST_1PARAM;
} else {
sub->state = UMIDI_ST_2PARAM_1;
}
} else { /* b < 0x80 */
switch (sub->state) {
case UMIDI_ST_1PARAM:
if (sub->temp_1[1] < 0xf0) {
p0 |= sub->temp_1[1] >> 4;
} else {
p0 |= 0x02;
sub->state = UMIDI_ST_UNKNOWN;
}
sub->temp_1[0] = p0;
sub->temp_1[2] = b;
sub->temp_1[3] = 0;
sub->temp_cmd = sub->temp_1;
return (1);
case UMIDI_ST_2PARAM_1:
sub->temp_1[2] = b;
sub->state = UMIDI_ST_2PARAM_2;
break;
case UMIDI_ST_2PARAM_2:
if (sub->temp_1[1] < 0xf0) {
p0 |= sub->temp_1[1] >> 4;
sub->state = UMIDI_ST_2PARAM_1;
} else {
p0 |= 0x03;
sub->state = UMIDI_ST_UNKNOWN;
}
sub->temp_1[0] = p0;
sub->temp_1[3] = b;
sub->temp_cmd = sub->temp_1;
return (1);
case UMIDI_ST_SYSEX_0:
sub->temp_1[1] = b;
sub->state = UMIDI_ST_SYSEX_1;
break;
case UMIDI_ST_SYSEX_1:
sub->temp_1[2] = b;
sub->state = UMIDI_ST_SYSEX_2;
break;
case UMIDI_ST_SYSEX_2:
sub->temp_1[0] = p0 | 0x04;
sub->temp_1[3] = b;
sub->temp_cmd = sub->temp_1;
sub->state = UMIDI_ST_SYSEX_0;
return (1);
default:
break;
}
}
return (0);
}
static void
umidi_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct umidi_chan *chan = usbd_xfer_softc(xfer);
struct umidi_sub_chan *sub;
struct usb_page_cache *pc;
uint32_t actlen;
uint16_t nframes;
uint8_t buf;
uint8_t start_cable;
uint8_t tr_any;
int len;
usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
/*
* NOTE: Some MIDI devices only accept 4 bytes of data per
* short terminated USB transfer.
*/
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
DPRINTF("actlen=%d bytes\n", len);
case USB_ST_SETUP:
tr_setup:
DPRINTF("start\n");
nframes = 0; /* reset */
start_cable = chan->curr_cable;
tr_any = 0;
pc = usbd_xfer_get_frame(xfer, 0);
while (1) {
/* round robin de-queueing */
sub = &chan->sub[chan->curr_cable];
if (sub->write_open) {
usb_fifo_get_data_linear(sub->fifo.fp[USB_FIFO_TX],
&buf, 1, &actlen, 0);
} else {
actlen = 0;
}
if (actlen) {
tr_any = 1;
DPRINTF("byte=0x%02x from FIFO %u\n", buf,
(unsigned int)chan->curr_cable);
if (umidi_convert_to_usb(sub, chan->curr_cable, buf)) {
DPRINTF("sub=0x%02x 0x%02x 0x%02x 0x%02x\n",
sub->temp_cmd[0], sub->temp_cmd[1],
sub->temp_cmd[2], sub->temp_cmd[3]);
usbd_copy_in(pc, nframes * 4, sub->temp_cmd, 4);
nframes++;
if ((nframes >= UMIDI_TX_FRAMES) || (chan->single_command != 0))
break;
} else {
continue;
}
}
chan->curr_cable++;
if (chan->curr_cable >= chan->max_cable)
chan->curr_cable = 0;
if (chan->curr_cable == start_cable) {
if (tr_any == 0)
break;
tr_any = 0;
}
}
if (nframes != 0) {
DPRINTF("Transferring %d frames\n", (int)nframes);
usbd_xfer_set_frame_len(xfer, 0, 4 * nframes);
usbd_transfer_submit(xfer);
}
break;
default: /* Error */
DPRINTF("error=%s\n", usbd_errstr(error));
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
break;
}
}
static struct umidi_sub_chan *
umidi_sub_by_fifo(struct usb_fifo *fifo)
{
struct umidi_chan *chan = usb_fifo_softc(fifo);
struct umidi_sub_chan *sub;
uint32_t n;
for (n = 0; n < UMIDI_CABLES_MAX; n++) {
sub = &chan->sub[n];
if ((sub->fifo.fp[USB_FIFO_RX] == fifo) ||
(sub->fifo.fp[USB_FIFO_TX] == fifo)) {
return (sub);
}
}
panic("%s:%d cannot find usb_fifo!\n",
__FILE__, __LINE__);
return (NULL);
}
static void
umidi_start_read(struct usb_fifo *fifo)
{
struct umidi_chan *chan = usb_fifo_softc(fifo);
usbd_transfer_start(chan->xfer[UMIDI_RX_TRANSFER]);
}
static void
umidi_stop_read(struct usb_fifo *fifo)
{
struct umidi_chan *chan = usb_fifo_softc(fifo);
struct umidi_sub_chan *sub = umidi_sub_by_fifo(fifo);
DPRINTF("\n");
sub->read_open = 0;
if (--(chan->read_open_refcount) == 0) {
/*
* XXX don't stop the read transfer here, hence that causes
* problems with some MIDI adapters
*/
DPRINTF("(stopping read transfer)\n");
}
}
static void
umidi_start_write(struct usb_fifo *fifo)
{
struct umidi_chan *chan = usb_fifo_softc(fifo);
usbd_transfer_start(chan->xfer[UMIDI_TX_TRANSFER]);
}
static void
umidi_stop_write(struct usb_fifo *fifo)
{
struct umidi_chan *chan = usb_fifo_softc(fifo);
struct umidi_sub_chan *sub = umidi_sub_by_fifo(fifo);
DPRINTF("\n");
sub->write_open = 0;
if (--(chan->write_open_refcount) == 0) {
DPRINTF("(stopping write transfer)\n");
usbd_transfer_stop(chan->xfer[UMIDI_TX_TRANSFER]);
}
}
static int
umidi_open(struct usb_fifo *fifo, int fflags)
{
struct umidi_chan *chan = usb_fifo_softc(fifo);
struct umidi_sub_chan *sub = umidi_sub_by_fifo(fifo);
if (fflags & FREAD) {
if (usb_fifo_alloc_buffer(fifo, 4, (1024 / 4))) {
return (ENOMEM);
}
mtx_lock(&chan->mtx);
chan->read_open_refcount++;
sub->read_open = 1;
mtx_unlock(&chan->mtx);
}
if (fflags & FWRITE) {
if (usb_fifo_alloc_buffer(fifo, 32, (1024 / 32))) {
return (ENOMEM);
}
/* clear stall first */
mtx_lock(&chan->mtx);
usbd_xfer_set_stall(chan->xfer[UMIDI_TX_TRANSFER]);
chan->write_open_refcount++;
sub->write_open = 1;
/* reset */
sub->state = UMIDI_ST_UNKNOWN;
mtx_unlock(&chan->mtx);
}
return (0); /* success */
}
static void
umidi_close(struct usb_fifo *fifo, int fflags)
{
if (fflags & FREAD) {
usb_fifo_free_buffer(fifo);
}
if (fflags & FWRITE) {
usb_fifo_free_buffer(fifo);
}
}
static int
umidi_ioctl(struct usb_fifo *fifo, u_long cmd, void *data,
int fflags)
{
return (ENODEV);
}
static void
umidi_init(device_t dev)
{
struct uaudio_softc *sc = device_get_softc(dev);
struct umidi_chan *chan = &sc->sc_midi_chan;
mtx_init(&chan->mtx, "umidi lock", NULL, MTX_DEF | MTX_RECURSE);
}
static struct usb_fifo_methods umidi_fifo_methods = {
.f_start_read = &umidi_start_read,
.f_start_write = &umidi_start_write,
.f_stop_read = &umidi_stop_read,
.f_stop_write = &umidi_stop_write,
.f_open = &umidi_open,
.f_close = &umidi_close,
.f_ioctl = &umidi_ioctl,
.basename[0] = "umidi",
};
static int
umidi_probe(device_t dev)
{
struct uaudio_softc *sc = device_get_softc(dev);
struct usb_attach_arg *uaa = device_get_ivars(dev);
struct umidi_chan *chan = &sc->sc_midi_chan;
struct umidi_sub_chan *sub;
int unit = device_get_unit(dev);
int error;
uint32_t n;
if (usb_test_quirk(uaa, UQ_SINGLE_CMD_MIDI))
chan->single_command = 1;
if (usbd_set_alt_interface_index(sc->sc_udev, chan->iface_index,
chan->iface_alt_index)) {
DPRINTF("setting of alternate index failed!\n");
goto detach;
}
usbd_set_parent_iface(sc->sc_udev, chan->iface_index,
sc->sc_mixer_iface_index);
error = usbd_transfer_setup(uaa->device, &chan->iface_index,
chan->xfer, umidi_config, UMIDI_N_TRANSFER,
chan, &chan->mtx);
if (error) {
DPRINTF("error=%s\n", usbd_errstr(error));
goto detach;
}
if ((chan->max_cable > UMIDI_CABLES_MAX) ||
(chan->max_cable == 0)) {
chan->max_cable = UMIDI_CABLES_MAX;
}
for (n = 0; n < chan->max_cable; n++) {
sub = &chan->sub[n];
error = usb_fifo_attach(sc->sc_udev, chan, &chan->mtx,
&umidi_fifo_methods, &sub->fifo, unit, n,
chan->iface_index,
UID_ROOT, GID_OPERATOR, 0644);
if (error) {
goto detach;
}
}
mtx_lock(&chan->mtx);
/* clear stall first */
usbd_xfer_set_stall(chan->xfer[UMIDI_RX_TRANSFER]);
/*
* NOTE: At least one device will not work properly unless the
* BULK IN pipe is open all the time. This might have to do
* about that the internal queues of the device overflow if we
* don't read them regularly.
*/
usbd_transfer_start(chan->xfer[UMIDI_RX_TRANSFER]);
mtx_unlock(&chan->mtx);
return (0); /* success */
detach:
return (ENXIO); /* failure */
}
static int
umidi_detach(device_t dev)
{
struct uaudio_softc *sc = device_get_softc(dev);
struct umidi_chan *chan = &sc->sc_midi_chan;
uint32_t n;
for (n = 0; n < UMIDI_CABLES_MAX; n++) {
usb_fifo_detach(&chan->sub[n].fifo);
}
mtx_lock(&chan->mtx);
usbd_transfer_stop(chan->xfer[UMIDI_RX_TRANSFER]);
mtx_unlock(&chan->mtx);
usbd_transfer_unsetup(chan->xfer, UMIDI_N_TRANSFER);
mtx_destroy(&chan->mtx);
return (0);
}
DRIVER_MODULE(uaudio, uhub, uaudio_driver, uaudio_devclass, NULL, 0);
MODULE_DEPEND(uaudio, usb, 1, 1, 1);
MODULE_DEPEND(uaudio, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
MODULE_VERSION(uaudio, 1);
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