ALSA: bebob: Add commands and connections/streams management
This commit adds management functionality for connections and streams. BeBoB uses CMP to manage connections and uses AMDTP for streams. This commit also adds some BridgeCo's AV/C extension commands. There are some BridgeCo's AV/C extension commands but this commit just uses below commands to get device's capability and status: 1.Extended Plug Info commands - Plug Channel Position Specific Data - Plug Type Specific Data - Cluster(Section) Info Specific Data - Plug Input Specific Data 2.Extended Stream Format Information commands - Extended Stream Format Information Command - List Request For Extended Plug Info commands for Cluster Info Specific Data, I pick up 'section' instead of 'cluster' from document to prevent from misunderstanding because 'cluster' is also used in IEC 61883-6. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto
Takashi Iwai
parent
fd6f4b0dc1
commit
eb7b3a056c
5 changed files with 1208 additions and 2 deletions
|
|
@ -1,2 +1,2 @@
|
|||
snd-bebob-objs := bebob.o
|
||||
snd-bebob-objs := bebob_command.o bebob_stream.o bebob.o
|
||||
obj-m += snd-bebob.o
|
||||
|
|
|
|||
|
|
@ -158,9 +158,20 @@ bebob_probe(struct fw_unit *unit,
|
|||
if (err < 0)
|
||||
goto error;
|
||||
|
||||
err = snd_card_register(card);
|
||||
err = snd_bebob_stream_discover(bebob);
|
||||
if (err < 0)
|
||||
goto error;
|
||||
|
||||
err = snd_bebob_stream_init_duplex(bebob);
|
||||
if (err < 0)
|
||||
goto error;
|
||||
|
||||
err = snd_card_register(card);
|
||||
if (err < 0) {
|
||||
snd_bebob_stream_destroy_duplex(bebob);
|
||||
goto error;
|
||||
}
|
||||
|
||||
dev_set_drvdata(&unit->device, bebob);
|
||||
end:
|
||||
mutex_unlock(&devices_mutex);
|
||||
|
|
@ -176,11 +187,13 @@ bebob_update(struct fw_unit *unit)
|
|||
{
|
||||
struct snd_bebob *bebob = dev_get_drvdata(&unit->device);
|
||||
fcp_bus_reset(bebob->unit);
|
||||
snd_bebob_stream_update_duplex(bebob);
|
||||
}
|
||||
|
||||
static void bebob_remove(struct fw_unit *unit)
|
||||
{
|
||||
struct snd_bebob *bebob = dev_get_drvdata(&unit->device);
|
||||
snd_bebob_stream_destroy_duplex(bebob);
|
||||
snd_card_disconnect(bebob->card);
|
||||
snd_card_free_when_closed(bebob->card);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -23,11 +23,25 @@
|
|||
|
||||
#include "../lib.h"
|
||||
#include "../fcp.h"
|
||||
#include "../packets-buffer.h"
|
||||
#include "../iso-resources.h"
|
||||
#include "../amdtp.h"
|
||||
#include "../cmp.h"
|
||||
|
||||
/* basic register addresses on DM1000/DM1100/DM1500 */
|
||||
#define BEBOB_ADDR_REG_INFO 0xffffc8020000
|
||||
#define BEBOB_ADDR_REG_REQ 0xffffc8021000
|
||||
|
||||
struct snd_bebob;
|
||||
|
||||
#define SND_BEBOB_STRM_FMT_ENTRIES 7
|
||||
struct snd_bebob_stream_formation {
|
||||
unsigned int pcm;
|
||||
unsigned int midi;
|
||||
};
|
||||
/* this is a lookup table for index of stream formations */
|
||||
extern const unsigned int snd_bebob_rate_table[SND_BEBOB_STRM_FMT_ENTRIES];
|
||||
|
||||
struct snd_bebob {
|
||||
struct snd_card *card;
|
||||
struct fw_unit *unit;
|
||||
|
|
@ -35,6 +49,24 @@ struct snd_bebob {
|
|||
|
||||
struct mutex mutex;
|
||||
spinlock_t lock;
|
||||
|
||||
unsigned int midi_input_ports;
|
||||
unsigned int midi_output_ports;
|
||||
|
||||
struct amdtp_stream *master;
|
||||
struct amdtp_stream tx_stream;
|
||||
struct amdtp_stream rx_stream;
|
||||
struct cmp_connection out_conn;
|
||||
struct cmp_connection in_conn;
|
||||
atomic_t capture_substreams;
|
||||
atomic_t playback_substreams;
|
||||
|
||||
struct snd_bebob_stream_formation
|
||||
tx_stream_formations[SND_BEBOB_STRM_FMT_ENTRIES];
|
||||
struct snd_bebob_stream_formation
|
||||
rx_stream_formations[SND_BEBOB_STRM_FMT_ENTRIES];
|
||||
|
||||
int sync_input_plug;
|
||||
};
|
||||
|
||||
static inline int
|
||||
|
|
@ -53,6 +85,88 @@ snd_bebob_read_quad(struct fw_unit *unit, u64 addr, u32 *buf)
|
|||
(void *)buf, sizeof(u32), 0);
|
||||
}
|
||||
|
||||
/*
|
||||
* AVC command extensions, AV/C Unit and Subunit, Revision 17
|
||||
* (Nov 2003, BridgeCo)
|
||||
*/
|
||||
#define AVC_BRIDGECO_ADDR_BYTES 6
|
||||
enum avc_bridgeco_plug_dir {
|
||||
AVC_BRIDGECO_PLUG_DIR_IN = 0x00,
|
||||
AVC_BRIDGECO_PLUG_DIR_OUT = 0x01
|
||||
};
|
||||
enum avc_bridgeco_plug_mode {
|
||||
AVC_BRIDGECO_PLUG_MODE_UNIT = 0x00,
|
||||
AVC_BRIDGECO_PLUG_MODE_SUBUNIT = 0x01,
|
||||
AVC_BRIDGECO_PLUG_MODE_FUNCTION_BLOCK = 0x02
|
||||
};
|
||||
enum avc_bridgeco_plug_unit {
|
||||
AVC_BRIDGECO_PLUG_UNIT_ISOC = 0x00,
|
||||
AVC_BRIDGECO_PLUG_UNIT_EXT = 0x01,
|
||||
AVC_BRIDGECO_PLUG_UNIT_ASYNC = 0x02
|
||||
};
|
||||
enum avc_bridgeco_plug_type {
|
||||
AVC_BRIDGECO_PLUG_TYPE_ISOC = 0x00,
|
||||
AVC_BRIDGECO_PLUG_TYPE_ASYNC = 0x01,
|
||||
AVC_BRIDGECO_PLUG_TYPE_MIDI = 0x02,
|
||||
AVC_BRIDGECO_PLUG_TYPE_SYNC = 0x03,
|
||||
AVC_BRIDGECO_PLUG_TYPE_ANA = 0x04,
|
||||
AVC_BRIDGECO_PLUG_TYPE_DIG = 0x05
|
||||
};
|
||||
static inline void
|
||||
avc_bridgeco_fill_unit_addr(u8 buf[AVC_BRIDGECO_ADDR_BYTES],
|
||||
enum avc_bridgeco_plug_dir dir,
|
||||
enum avc_bridgeco_plug_unit unit,
|
||||
unsigned int pid)
|
||||
{
|
||||
buf[0] = 0xff; /* Unit */
|
||||
buf[1] = dir;
|
||||
buf[2] = AVC_BRIDGECO_PLUG_MODE_UNIT;
|
||||
buf[3] = unit;
|
||||
buf[4] = 0xff & pid;
|
||||
buf[5] = 0xff; /* reserved */
|
||||
}
|
||||
static inline void
|
||||
avc_bridgeco_fill_msu_addr(u8 buf[AVC_BRIDGECO_ADDR_BYTES],
|
||||
enum avc_bridgeco_plug_dir dir,
|
||||
unsigned int pid)
|
||||
{
|
||||
buf[0] = 0x60; /* Music subunit */
|
||||
buf[1] = dir;
|
||||
buf[2] = AVC_BRIDGECO_PLUG_MODE_SUBUNIT;
|
||||
buf[3] = 0xff & pid;
|
||||
buf[4] = 0xff; /* reserved */
|
||||
buf[5] = 0xff; /* reserved */
|
||||
}
|
||||
int avc_bridgeco_get_plug_ch_pos(struct fw_unit *unit,
|
||||
u8 addr[AVC_BRIDGECO_ADDR_BYTES],
|
||||
u8 *buf, unsigned int len);
|
||||
int avc_bridgeco_get_plug_type(struct fw_unit *unit,
|
||||
u8 addr[AVC_BRIDGECO_ADDR_BYTES],
|
||||
enum avc_bridgeco_plug_type *type);
|
||||
int avc_bridgeco_get_plug_section_type(struct fw_unit *unit,
|
||||
u8 addr[AVC_BRIDGECO_ADDR_BYTES],
|
||||
unsigned int id, u8 *type);
|
||||
int avc_bridgeco_get_plug_input(struct fw_unit *unit,
|
||||
u8 addr[AVC_BRIDGECO_ADDR_BYTES],
|
||||
u8 input[7]);
|
||||
int avc_bridgeco_get_plug_strm_fmt(struct fw_unit *unit,
|
||||
u8 addr[AVC_BRIDGECO_ADDR_BYTES], u8 *buf,
|
||||
unsigned int *len, unsigned int eid);
|
||||
|
||||
/* for AMDTP streaming */
|
||||
int snd_bebob_stream_get_rate(struct snd_bebob *bebob, unsigned int *rate);
|
||||
int snd_bebob_stream_set_rate(struct snd_bebob *bebob, unsigned int rate);
|
||||
int snd_bebob_stream_check_internal_clock(struct snd_bebob *bebob,
|
||||
bool *internal);
|
||||
int snd_bebob_stream_discover(struct snd_bebob *bebob);
|
||||
int snd_bebob_stream_map(struct snd_bebob *bebob,
|
||||
struct amdtp_stream *stream);
|
||||
int snd_bebob_stream_init_duplex(struct snd_bebob *bebob);
|
||||
int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, int rate);
|
||||
void snd_bebob_stream_stop_duplex(struct snd_bebob *bebob);
|
||||
void snd_bebob_stream_update_duplex(struct snd_bebob *bebob);
|
||||
void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob);
|
||||
|
||||
#define SND_BEBOB_DEV_ENTRY(vendor, model) \
|
||||
{ \
|
||||
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
|
||||
|
|
|
|||
205
sound/firewire/bebob/bebob_command.c
Normal file
205
sound/firewire/bebob/bebob_command.c
Normal file
|
|
@ -0,0 +1,205 @@
|
|||
/*
|
||||
* bebob_command.c - driver for BeBoB based devices
|
||||
*
|
||||
* Copyright (c) 2013-2014 Takashi Sakamoto
|
||||
*
|
||||
* Licensed under the terms of the GNU General Public License, version 2.
|
||||
*/
|
||||
|
||||
#include "./bebob.h"
|
||||
|
||||
static inline void
|
||||
avc_bridgeco_fill_extension_addr(u8 *buf, u8 *addr)
|
||||
{
|
||||
buf[1] = addr[0];
|
||||
memcpy(buf + 4, addr + 1, 5);
|
||||
}
|
||||
|
||||
static inline void
|
||||
avc_bridgeco_fill_plug_info_extension_command(u8 *buf, u8 *addr,
|
||||
unsigned int itype)
|
||||
{
|
||||
buf[0] = 0x01; /* AV/C STATUS */
|
||||
buf[2] = 0x02; /* AV/C GENERAL PLUG INFO */
|
||||
buf[3] = 0xc0; /* BridgeCo extension */
|
||||
avc_bridgeco_fill_extension_addr(buf, addr);
|
||||
buf[9] = itype; /* info type */
|
||||
}
|
||||
|
||||
int avc_bridgeco_get_plug_type(struct fw_unit *unit,
|
||||
u8 addr[AVC_BRIDGECO_ADDR_BYTES],
|
||||
enum avc_bridgeco_plug_type *type)
|
||||
{
|
||||
u8 *buf;
|
||||
int err;
|
||||
|
||||
buf = kzalloc(12, GFP_KERNEL);
|
||||
if (buf == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
/* Info type is 'plug type'. */
|
||||
avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x00);
|
||||
|
||||
err = fcp_avc_transaction(unit, buf, 12, buf, 12,
|
||||
BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
|
||||
BIT(6) | BIT(7) | BIT(9));
|
||||
if ((err >= 0) && (err < 8))
|
||||
err = -EIO;
|
||||
else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
|
||||
err = -ENOSYS;
|
||||
else if (buf[0] == 0x0a) /* REJECTED */
|
||||
err = -EINVAL;
|
||||
else if (buf[0] == 0x0b) /* IN TRANSITION */
|
||||
err = -EAGAIN;
|
||||
if (err < 0)
|
||||
goto end;
|
||||
|
||||
*type = buf[10];
|
||||
err = 0;
|
||||
end:
|
||||
kfree(buf);
|
||||
return err;
|
||||
}
|
||||
|
||||
int avc_bridgeco_get_plug_ch_pos(struct fw_unit *unit,
|
||||
u8 addr[AVC_BRIDGECO_ADDR_BYTES],
|
||||
u8 *buf, unsigned int len)
|
||||
{
|
||||
int err;
|
||||
|
||||
/* Info type is 'channel position'. */
|
||||
avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x03);
|
||||
|
||||
err = fcp_avc_transaction(unit, buf, 12, buf, 256,
|
||||
BIT(1) | BIT(2) | BIT(3) | BIT(4) |
|
||||
BIT(5) | BIT(6) | BIT(7) | BIT(9));
|
||||
if ((err >= 0) && (err < 8))
|
||||
err = -EIO;
|
||||
else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
|
||||
err = -ENOSYS;
|
||||
else if (buf[0] == 0x0a) /* REJECTED */
|
||||
err = -EINVAL;
|
||||
else if (buf[0] == 0x0b) /* IN TRANSITION */
|
||||
err = -EAGAIN;
|
||||
if (err < 0)
|
||||
goto end;
|
||||
|
||||
/* Pick up specific data. */
|
||||
memmove(buf, buf + 10, err - 10);
|
||||
err = 0;
|
||||
end:
|
||||
return err;
|
||||
}
|
||||
|
||||
int avc_bridgeco_get_plug_section_type(struct fw_unit *unit,
|
||||
u8 addr[AVC_BRIDGECO_ADDR_BYTES],
|
||||
unsigned int id, u8 *type)
|
||||
{
|
||||
u8 *buf;
|
||||
int err;
|
||||
|
||||
/* section info includes charactors but this module don't need it */
|
||||
buf = kzalloc(12, GFP_KERNEL);
|
||||
if (buf == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
/* Info type is 'section info'. */
|
||||
avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x07);
|
||||
buf[10] = 0xff & ++id; /* section id */
|
||||
|
||||
err = fcp_avc_transaction(unit, buf, 12, buf, 12,
|
||||
BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
|
||||
BIT(6) | BIT(7) | BIT(9) | BIT(10));
|
||||
if ((err >= 0) && (err < 8))
|
||||
err = -EIO;
|
||||
else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
|
||||
err = -ENOSYS;
|
||||
else if (buf[0] == 0x0a) /* REJECTED */
|
||||
err = -EINVAL;
|
||||
else if (buf[0] == 0x0b) /* IN TRANSITION */
|
||||
err = -EAGAIN;
|
||||
if (err < 0)
|
||||
goto end;
|
||||
|
||||
*type = buf[11];
|
||||
err = 0;
|
||||
end:
|
||||
kfree(buf);
|
||||
return err;
|
||||
}
|
||||
|
||||
int avc_bridgeco_get_plug_input(struct fw_unit *unit,
|
||||
u8 addr[AVC_BRIDGECO_ADDR_BYTES], u8 input[7])
|
||||
{
|
||||
int err;
|
||||
u8 *buf;
|
||||
|
||||
buf = kzalloc(18, GFP_KERNEL);
|
||||
if (buf == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
/* Info type is 'plug input'. */
|
||||
avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x05);
|
||||
|
||||
err = fcp_avc_transaction(unit, buf, 16, buf, 16,
|
||||
BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
|
||||
BIT(6) | BIT(7));
|
||||
if ((err >= 0) && (err < 8))
|
||||
err = -EIO;
|
||||
else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
|
||||
err = -ENOSYS;
|
||||
else if (buf[0] == 0x0a) /* REJECTED */
|
||||
err = -EINVAL;
|
||||
else if (buf[0] == 0x0b) /* IN TRANSITION */
|
||||
err = -EAGAIN;
|
||||
if (err < 0)
|
||||
goto end;
|
||||
|
||||
memcpy(input, buf + 10, 5);
|
||||
err = 0;
|
||||
end:
|
||||
kfree(buf);
|
||||
return err;
|
||||
}
|
||||
|
||||
int avc_bridgeco_get_plug_strm_fmt(struct fw_unit *unit,
|
||||
u8 addr[AVC_BRIDGECO_ADDR_BYTES], u8 *buf,
|
||||
unsigned int *len, unsigned int eid)
|
||||
{
|
||||
int err;
|
||||
|
||||
/* check given buffer */
|
||||
if ((buf == NULL) || (*len < 12)) {
|
||||
err = -EINVAL;
|
||||
goto end;
|
||||
}
|
||||
|
||||
buf[0] = 0x01; /* AV/C STATUS */
|
||||
buf[2] = 0x2f; /* AV/C STREAM FORMAT SUPPORT */
|
||||
buf[3] = 0xc1; /* Bridgeco extension - List Request */
|
||||
avc_bridgeco_fill_extension_addr(buf, addr);
|
||||
buf[10] = 0xff & eid; /* Entry ID */
|
||||
|
||||
err = fcp_avc_transaction(unit, buf, 12, buf, *len,
|
||||
BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
|
||||
BIT(6) | BIT(7) | BIT(10));
|
||||
if ((err >= 0) && (err < 12))
|
||||
err = -EIO;
|
||||
else if (buf[0] == 0x08) /* NOT IMPLEMENTED */
|
||||
err = -ENOSYS;
|
||||
else if (buf[0] == 0x0a) /* REJECTED */
|
||||
err = -EINVAL;
|
||||
else if (buf[0] == 0x0b) /* IN TRANSITION */
|
||||
err = -EAGAIN;
|
||||
else if (buf[10] != eid)
|
||||
err = -EIO;
|
||||
if (err < 0)
|
||||
goto end;
|
||||
|
||||
/* Pick up 'stream format info'. */
|
||||
memmove(buf, buf + 11, err - 11);
|
||||
*len = err - 11;
|
||||
err = 0;
|
||||
end:
|
||||
return err;
|
||||
}
|
||||
874
sound/firewire/bebob/bebob_stream.c
Normal file
874
sound/firewire/bebob/bebob_stream.c
Normal file
|
|
@ -0,0 +1,874 @@
|
|||
/*
|
||||
* bebob_stream.c - a part of driver for BeBoB based devices
|
||||
*
|
||||
* Copyright (c) 2013-2014 Takashi Sakamoto
|
||||
*
|
||||
* Licensed under the terms of the GNU General Public License, version 2.
|
||||
*/
|
||||
|
||||
#include "./bebob.h"
|
||||
|
||||
#define CALLBACK_TIMEOUT 1000
|
||||
|
||||
/*
|
||||
* NOTE;
|
||||
* For BeBoB streams, Both of input and output CMP connection are important.
|
||||
*
|
||||
* For most devices, each CMP connection starts to transmit/receive a
|
||||
* corresponding stream. But for a few devices, both of CMP connection needs
|
||||
* to start transmitting stream. An example is 'M-Audio Firewire 410'.
|
||||
*/
|
||||
|
||||
/* 128 is an arbitrary length but it seems to be enough */
|
||||
#define FORMAT_MAXIMUM_LENGTH 128
|
||||
|
||||
const unsigned int snd_bebob_rate_table[SND_BEBOB_STRM_FMT_ENTRIES] = {
|
||||
[0] = 32000,
|
||||
[1] = 44100,
|
||||
[2] = 48000,
|
||||
[3] = 88200,
|
||||
[4] = 96000,
|
||||
[5] = 176400,
|
||||
[6] = 192000,
|
||||
};
|
||||
|
||||
/*
|
||||
* See: Table 51: Extended Stream Format Info ‘Sampling Frequency’
|
||||
* in Additional AVC commands (Nov 2003, BridgeCo)
|
||||
*/
|
||||
static const unsigned int bridgeco_freq_table[] = {
|
||||
[0] = 0x02,
|
||||
[1] = 0x03,
|
||||
[2] = 0x04,
|
||||
[3] = 0x0a,
|
||||
[4] = 0x05,
|
||||
[5] = 0x06,
|
||||
[6] = 0x07,
|
||||
};
|
||||
|
||||
static unsigned int
|
||||
get_formation_index(unsigned int rate)
|
||||
{
|
||||
unsigned int i;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(snd_bebob_rate_table); i++) {
|
||||
if (snd_bebob_rate_table[i] == rate)
|
||||
return i;
|
||||
}
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
int
|
||||
snd_bebob_stream_get_rate(struct snd_bebob *bebob, unsigned int *curr_rate)
|
||||
{
|
||||
unsigned int tx_rate, rx_rate, trials;
|
||||
int err;
|
||||
|
||||
trials = 0;
|
||||
do {
|
||||
err = avc_general_get_sig_fmt(bebob->unit, &tx_rate,
|
||||
AVC_GENERAL_PLUG_DIR_OUT, 0);
|
||||
} while (err == -EAGAIN && ++trials < 3);
|
||||
if (err < 0)
|
||||
goto end;
|
||||
|
||||
trials = 0;
|
||||
do {
|
||||
err = avc_general_get_sig_fmt(bebob->unit, &rx_rate,
|
||||
AVC_GENERAL_PLUG_DIR_IN, 0);
|
||||
} while (err == -EAGAIN && ++trials < 3);
|
||||
if (err < 0)
|
||||
goto end;
|
||||
|
||||
*curr_rate = rx_rate;
|
||||
if (rx_rate == tx_rate)
|
||||
goto end;
|
||||
|
||||
/* synchronize receive stream rate to transmit stream rate */
|
||||
err = avc_general_set_sig_fmt(bebob->unit, rx_rate,
|
||||
AVC_GENERAL_PLUG_DIR_IN, 0);
|
||||
end:
|
||||
return err;
|
||||
}
|
||||
|
||||
int
|
||||
snd_bebob_stream_set_rate(struct snd_bebob *bebob, unsigned int rate)
|
||||
{
|
||||
int err;
|
||||
|
||||
err = avc_general_set_sig_fmt(bebob->unit, rate,
|
||||
AVC_GENERAL_PLUG_DIR_OUT, 0);
|
||||
if (err < 0)
|
||||
goto end;
|
||||
|
||||
err = avc_general_set_sig_fmt(bebob->unit, rate,
|
||||
AVC_GENERAL_PLUG_DIR_IN, 0);
|
||||
if (err < 0)
|
||||
goto end;
|
||||
|
||||
/*
|
||||
* Some devices need a bit time for transition.
|
||||
* 300msec is got by some experiments.
|
||||
*/
|
||||
msleep(300);
|
||||
end:
|
||||
return err;
|
||||
}
|
||||
|
||||
int
|
||||
snd_bebob_stream_check_internal_clock(struct snd_bebob *bebob, bool *internal)
|
||||
{
|
||||
u8 addr[AVC_BRIDGECO_ADDR_BYTES], input[7];
|
||||
int err = 0;
|
||||
|
||||
*internal = false;
|
||||
|
||||
/*
|
||||
* 1.The device don't support to switch source of clock then assumed
|
||||
* to use internal clock always
|
||||
*/
|
||||
if (bebob->sync_input_plug < 0) {
|
||||
*internal = true;
|
||||
goto end;
|
||||
}
|
||||
|
||||
/*
|
||||
* 2.The device supports to switch source of clock by an usual way.
|
||||
* Let's check input for 'Music Sub Unit Sync Input' plug.
|
||||
*/
|
||||
avc_bridgeco_fill_msu_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN,
|
||||
bebob->sync_input_plug);
|
||||
err = avc_bridgeco_get_plug_input(bebob->unit, addr, input);
|
||||
if (err < 0) {
|
||||
dev_err(&bebob->unit->device,
|
||||
"fail to get an input for MSU in plug %d: %d\n",
|
||||
bebob->sync_input_plug, err);
|
||||
goto end;
|
||||
}
|
||||
|
||||
/*
|
||||
* If there are no input plugs, all of fields are 0xff.
|
||||
* Here check the first field. This field is used for direction.
|
||||
*/
|
||||
if (input[0] == 0xff) {
|
||||
*internal = true;
|
||||
goto end;
|
||||
}
|
||||
|
||||
/*
|
||||
* If source of clock is internal CSR, Music Sub Unit Sync Input is
|
||||
* a destination of Music Sub Unit Sync Output.
|
||||
*/
|
||||
*internal = ((input[0] == AVC_BRIDGECO_PLUG_DIR_OUT) &&
|
||||
(input[1] == AVC_BRIDGECO_PLUG_MODE_SUBUNIT) &&
|
||||
(input[2] == 0x0c) &&
|
||||
(input[3] == 0x00));
|
||||
end:
|
||||
return err;
|
||||
}
|
||||
|
||||
static unsigned int
|
||||
map_data_channels(struct snd_bebob *bebob, struct amdtp_stream *s)
|
||||
{
|
||||
unsigned int sec, sections, ch, channels;
|
||||
unsigned int pcm, midi, location;
|
||||
unsigned int stm_pos, sec_loc, pos;
|
||||
u8 *buf, addr[AVC_BRIDGECO_ADDR_BYTES], type;
|
||||
enum avc_bridgeco_plug_dir dir;
|
||||
int err;
|
||||
|
||||
/*
|
||||
* The length of return value of this command cannot be expected. Here
|
||||
* use the maximum length of FCP.
|
||||
*/
|
||||
buf = kzalloc(256, GFP_KERNEL);
|
||||
if (buf == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
if (s == &bebob->tx_stream)
|
||||
dir = AVC_BRIDGECO_PLUG_DIR_OUT;
|
||||
else
|
||||
dir = AVC_BRIDGECO_PLUG_DIR_IN;
|
||||
|
||||
avc_bridgeco_fill_unit_addr(addr, dir, AVC_BRIDGECO_PLUG_UNIT_ISOC, 0);
|
||||
err = avc_bridgeco_get_plug_ch_pos(bebob->unit, addr, buf, 256);
|
||||
if (err < 0) {
|
||||
dev_err(&bebob->unit->device,
|
||||
"fail to get channel position for isoc %s plug 0: %d\n",
|
||||
(dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : "out",
|
||||
err);
|
||||
goto end;
|
||||
}
|
||||
pos = 0;
|
||||
|
||||
/* positions in I/O buffer */
|
||||
pcm = 0;
|
||||
midi = 0;
|
||||
|
||||
/* the number of sections in AMDTP packet */
|
||||
sections = buf[pos++];
|
||||
|
||||
for (sec = 0; sec < sections; sec++) {
|
||||
/* type of this section */
|
||||
avc_bridgeco_fill_unit_addr(addr, dir,
|
||||
AVC_BRIDGECO_PLUG_UNIT_ISOC, 0);
|
||||
err = avc_bridgeco_get_plug_section_type(bebob->unit, addr,
|
||||
sec, &type);
|
||||
if (err < 0) {
|
||||
dev_err(&bebob->unit->device,
|
||||
"fail to get section type for isoc %s plug 0: %d\n",
|
||||
(dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" :
|
||||
"out",
|
||||
err);
|
||||
goto end;
|
||||
}
|
||||
/* NoType */
|
||||
if (type == 0xff) {
|
||||
err = -ENOSYS;
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* the number of channels in this section */
|
||||
channels = buf[pos++];
|
||||
|
||||
for (ch = 0; ch < channels; ch++) {
|
||||
/* position of this channel in AMDTP packet */
|
||||
stm_pos = buf[pos++] - 1;
|
||||
/* location of this channel in this section */
|
||||
sec_loc = buf[pos++] - 1;
|
||||
|
||||
switch (type) {
|
||||
/* for MIDI conformant data channel */
|
||||
case 0x0a:
|
||||
/* AMDTP_MAX_CHANNELS_FOR_MIDI is 1. */
|
||||
if ((midi > 0) && (stm_pos != midi)) {
|
||||
err = -ENOSYS;
|
||||
goto end;
|
||||
}
|
||||
s->midi_position = stm_pos;
|
||||
midi = stm_pos;
|
||||
break;
|
||||
/* for PCM data channel */
|
||||
case 0x01: /* Headphone */
|
||||
case 0x02: /* Microphone */
|
||||
case 0x03: /* Line */
|
||||
case 0x04: /* SPDIF */
|
||||
case 0x05: /* ADAT */
|
||||
case 0x06: /* TDIF */
|
||||
case 0x07: /* MADI */
|
||||
/* for undefined/changeable signal */
|
||||
case 0x08: /* Analog */
|
||||
case 0x09: /* Digital */
|
||||
default:
|
||||
location = pcm + sec_loc;
|
||||
if (location >= AMDTP_MAX_CHANNELS_FOR_PCM) {
|
||||
err = -ENOSYS;
|
||||
goto end;
|
||||
}
|
||||
s->pcm_positions[location] = stm_pos;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (type != 0x0a)
|
||||
pcm += channels;
|
||||
else
|
||||
midi += channels;
|
||||
}
|
||||
end:
|
||||
kfree(buf);
|
||||
return err;
|
||||
}
|
||||
|
||||
static int
|
||||
init_both_connections(struct snd_bebob *bebob)
|
||||
{
|
||||
int err;
|
||||
|
||||
err = cmp_connection_init(&bebob->in_conn,
|
||||
bebob->unit, CMP_INPUT, 0);
|
||||
if (err < 0)
|
||||
goto end;
|
||||
|
||||
err = cmp_connection_init(&bebob->out_conn,
|
||||
bebob->unit, CMP_OUTPUT, 0);
|
||||
if (err < 0)
|
||||
cmp_connection_destroy(&bebob->in_conn);
|
||||
end:
|
||||
return err;
|
||||
}
|
||||
|
||||
static int
|
||||
check_connection_used_by_others(struct snd_bebob *bebob, struct amdtp_stream *s)
|
||||
{
|
||||
struct cmp_connection *conn;
|
||||
bool used;
|
||||
int err;
|
||||
|
||||
if (s == &bebob->tx_stream)
|
||||
conn = &bebob->out_conn;
|
||||
else
|
||||
conn = &bebob->in_conn;
|
||||
|
||||
err = cmp_connection_check_used(conn, &used);
|
||||
if ((err >= 0) && used && !amdtp_stream_running(s)) {
|
||||
dev_err(&bebob->unit->device,
|
||||
"Connection established by others: %cPCR[%d]\n",
|
||||
(conn->direction == CMP_OUTPUT) ? 'o' : 'i',
|
||||
conn->pcr_index);
|
||||
err = -EBUSY;
|
||||
}
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static int
|
||||
make_both_connections(struct snd_bebob *bebob, unsigned int rate)
|
||||
{
|
||||
int index, pcm_channels, midi_channels, err;
|
||||
|
||||
/* confirm params for both streams */
|
||||
index = get_formation_index(rate);
|
||||
pcm_channels = bebob->tx_stream_formations[index].pcm;
|
||||
midi_channels = bebob->tx_stream_formations[index].midi;
|
||||
amdtp_stream_set_parameters(&bebob->tx_stream,
|
||||
rate, pcm_channels, midi_channels * 8);
|
||||
pcm_channels = bebob->rx_stream_formations[index].pcm;
|
||||
midi_channels = bebob->rx_stream_formations[index].midi;
|
||||
amdtp_stream_set_parameters(&bebob->rx_stream,
|
||||
rate, pcm_channels, midi_channels * 8);
|
||||
|
||||
/* establish connections for both streams */
|
||||
err = cmp_connection_establish(&bebob->out_conn,
|
||||
amdtp_stream_get_max_payload(&bebob->tx_stream));
|
||||
if (err < 0)
|
||||
goto end;
|
||||
err = cmp_connection_establish(&bebob->in_conn,
|
||||
amdtp_stream_get_max_payload(&bebob->rx_stream));
|
||||
if (err < 0)
|
||||
cmp_connection_break(&bebob->out_conn);
|
||||
end:
|
||||
return err;
|
||||
}
|
||||
|
||||
static void
|
||||
break_both_connections(struct snd_bebob *bebob)
|
||||
{
|
||||
cmp_connection_break(&bebob->in_conn);
|
||||
cmp_connection_break(&bebob->out_conn);
|
||||
}
|
||||
|
||||
static void
|
||||
destroy_both_connections(struct snd_bebob *bebob)
|
||||
{
|
||||
break_both_connections(bebob);
|
||||
|
||||
cmp_connection_destroy(&bebob->in_conn);
|
||||
cmp_connection_destroy(&bebob->out_conn);
|
||||
}
|
||||
|
||||
static int
|
||||
get_sync_mode(struct snd_bebob *bebob, enum cip_flags *sync_mode)
|
||||
{
|
||||
/* currently this module doesn't support SYT-Match mode */
|
||||
*sync_mode = CIP_SYNC_TO_DEVICE;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
start_stream(struct snd_bebob *bebob, struct amdtp_stream *stream,
|
||||
unsigned int rate)
|
||||
{
|
||||
struct cmp_connection *conn;
|
||||
int err = 0;
|
||||
|
||||
if (stream == &bebob->rx_stream)
|
||||
conn = &bebob->in_conn;
|
||||
else
|
||||
conn = &bebob->out_conn;
|
||||
|
||||
/* channel mapping */
|
||||
err = map_data_channels(bebob, stream);
|
||||
if (err < 0)
|
||||
goto end;
|
||||
|
||||
/* start amdtp stream */
|
||||
err = amdtp_stream_start(stream,
|
||||
conn->resources.channel,
|
||||
conn->speed);
|
||||
end:
|
||||
return err;
|
||||
}
|
||||
|
||||
int snd_bebob_stream_init_duplex(struct snd_bebob *bebob)
|
||||
{
|
||||
int err;
|
||||
|
||||
err = init_both_connections(bebob);
|
||||
if (err < 0)
|
||||
goto end;
|
||||
|
||||
err = amdtp_stream_init(&bebob->tx_stream, bebob->unit,
|
||||
AMDTP_IN_STREAM, CIP_BLOCKING);
|
||||
if (err < 0) {
|
||||
amdtp_stream_destroy(&bebob->tx_stream);
|
||||
destroy_both_connections(bebob);
|
||||
goto end;
|
||||
}
|
||||
|
||||
err = amdtp_stream_init(&bebob->rx_stream, bebob->unit,
|
||||
AMDTP_OUT_STREAM, CIP_BLOCKING);
|
||||
if (err < 0) {
|
||||
amdtp_stream_destroy(&bebob->tx_stream);
|
||||
amdtp_stream_destroy(&bebob->rx_stream);
|
||||
destroy_both_connections(bebob);
|
||||
}
|
||||
end:
|
||||
return err;
|
||||
}
|
||||
|
||||
int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, int rate)
|
||||
{
|
||||
struct amdtp_stream *master, *slave;
|
||||
atomic_t *slave_substreams;
|
||||
enum cip_flags sync_mode;
|
||||
unsigned int curr_rate;
|
||||
int err = 0;
|
||||
|
||||
mutex_lock(&bebob->mutex);
|
||||
|
||||
/* Need no substreams */
|
||||
if (atomic_read(&bebob->playback_substreams) == 0 &&
|
||||
atomic_read(&bebob->capture_substreams) == 0)
|
||||
goto end;
|
||||
|
||||
err = get_sync_mode(bebob, &sync_mode);
|
||||
if (err < 0)
|
||||
goto end;
|
||||
if (sync_mode == CIP_SYNC_TO_DEVICE) {
|
||||
master = &bebob->tx_stream;
|
||||
slave = &bebob->rx_stream;
|
||||
slave_substreams = &bebob->playback_substreams;
|
||||
} else {
|
||||
master = &bebob->rx_stream;
|
||||
slave = &bebob->tx_stream;
|
||||
slave_substreams = &bebob->capture_substreams;
|
||||
}
|
||||
|
||||
/*
|
||||
* Considering JACK/FFADO streaming:
|
||||
* TODO: This can be removed hwdep functionality becomes popular.
|
||||
*/
|
||||
err = check_connection_used_by_others(bebob, master);
|
||||
if (err < 0)
|
||||
goto end;
|
||||
|
||||
/* packet queueing error */
|
||||
if (amdtp_streaming_error(master)) {
|
||||
amdtp_stream_stop(master);
|
||||
amdtp_stream_stop(slave);
|
||||
}
|
||||
if (amdtp_streaming_error(slave))
|
||||
amdtp_stream_stop(slave);
|
||||
|
||||
/* stop streams if rate is different */
|
||||
err = snd_bebob_stream_get_rate(bebob, &curr_rate);
|
||||
if (err < 0) {
|
||||
dev_err(&bebob->unit->device,
|
||||
"fail to get sampling rate: %d\n", err);
|
||||
goto end;
|
||||
}
|
||||
if (rate == 0)
|
||||
rate = curr_rate;
|
||||
if (rate != curr_rate) {
|
||||
amdtp_stream_stop(master);
|
||||
amdtp_stream_stop(slave);
|
||||
break_both_connections(bebob);
|
||||
}
|
||||
|
||||
/* master should be always running */
|
||||
if (!amdtp_stream_running(master)) {
|
||||
amdtp_stream_set_sync(sync_mode, master, slave);
|
||||
bebob->master = master;
|
||||
|
||||
/*
|
||||
* NOTE:
|
||||
* If establishing connections at first, Yamaha GO46
|
||||
* (and maybe Terratec X24) don't generate sound.
|
||||
*/
|
||||
err = snd_bebob_stream_set_rate(bebob, rate);
|
||||
if (err < 0) {
|
||||
dev_err(&bebob->unit->device,
|
||||
"fail to set sampling rate: %d\n",
|
||||
err);
|
||||
goto end;
|
||||
}
|
||||
|
||||
err = make_both_connections(bebob, rate);
|
||||
if (err < 0)
|
||||
goto end;
|
||||
|
||||
err = start_stream(bebob, master, rate);
|
||||
if (err < 0) {
|
||||
dev_err(&bebob->unit->device,
|
||||
"fail to run AMDTP master stream:%d\n", err);
|
||||
break_both_connections(bebob);
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* wait first callback */
|
||||
if (!amdtp_stream_wait_callback(master, CALLBACK_TIMEOUT)) {
|
||||
amdtp_stream_stop(master);
|
||||
break_both_connections(bebob);
|
||||
err = -ETIMEDOUT;
|
||||
goto end;
|
||||
}
|
||||
}
|
||||
|
||||
/* start slave if needed */
|
||||
if (atomic_read(slave_substreams) > 0 && !amdtp_stream_running(slave)) {
|
||||
err = start_stream(bebob, slave, rate);
|
||||
if (err < 0) {
|
||||
dev_err(&bebob->unit->device,
|
||||
"fail to run AMDTP slave stream:%d\n", err);
|
||||
amdtp_stream_stop(master);
|
||||
break_both_connections(bebob);
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* wait first callback */
|
||||
if (!amdtp_stream_wait_callback(slave, CALLBACK_TIMEOUT)) {
|
||||
amdtp_stream_stop(slave);
|
||||
amdtp_stream_stop(master);
|
||||
break_both_connections(bebob);
|
||||
err = -ETIMEDOUT;
|
||||
}
|
||||
}
|
||||
end:
|
||||
mutex_unlock(&bebob->mutex);
|
||||
return err;
|
||||
}
|
||||
|
||||
void snd_bebob_stream_stop_duplex(struct snd_bebob *bebob)
|
||||
{
|
||||
struct amdtp_stream *master, *slave;
|
||||
atomic_t *master_substreams, *slave_substreams;
|
||||
|
||||
mutex_lock(&bebob->mutex);
|
||||
|
||||
if (bebob->master == &bebob->rx_stream) {
|
||||
slave = &bebob->tx_stream;
|
||||
master = &bebob->rx_stream;
|
||||
slave_substreams = &bebob->capture_substreams;
|
||||
master_substreams = &bebob->playback_substreams;
|
||||
} else {
|
||||
slave = &bebob->rx_stream;
|
||||
master = &bebob->tx_stream;
|
||||
slave_substreams = &bebob->playback_substreams;
|
||||
master_substreams = &bebob->capture_substreams;
|
||||
}
|
||||
|
||||
if (atomic_read(slave_substreams) == 0) {
|
||||
amdtp_stream_pcm_abort(slave);
|
||||
amdtp_stream_stop(slave);
|
||||
|
||||
if (atomic_read(master_substreams) == 0) {
|
||||
amdtp_stream_pcm_abort(master);
|
||||
amdtp_stream_stop(master);
|
||||
break_both_connections(bebob);
|
||||
}
|
||||
}
|
||||
|
||||
mutex_unlock(&bebob->mutex);
|
||||
}
|
||||
|
||||
void snd_bebob_stream_update_duplex(struct snd_bebob *bebob)
|
||||
{
|
||||
/* vs. XRUN recovery due to discontinuity at bus reset */
|
||||
mutex_lock(&bebob->mutex);
|
||||
|
||||
if ((cmp_connection_update(&bebob->in_conn) < 0) ||
|
||||
(cmp_connection_update(&bebob->out_conn) < 0)) {
|
||||
amdtp_stream_pcm_abort(&bebob->rx_stream);
|
||||
amdtp_stream_pcm_abort(&bebob->tx_stream);
|
||||
amdtp_stream_stop(&bebob->rx_stream);
|
||||
amdtp_stream_stop(&bebob->tx_stream);
|
||||
break_both_connections(bebob);
|
||||
} else {
|
||||
amdtp_stream_update(&bebob->rx_stream);
|
||||
amdtp_stream_update(&bebob->tx_stream);
|
||||
}
|
||||
|
||||
mutex_unlock(&bebob->mutex);
|
||||
}
|
||||
|
||||
void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob)
|
||||
{
|
||||
mutex_lock(&bebob->mutex);
|
||||
|
||||
amdtp_stream_pcm_abort(&bebob->rx_stream);
|
||||
amdtp_stream_pcm_abort(&bebob->tx_stream);
|
||||
|
||||
amdtp_stream_stop(&bebob->rx_stream);
|
||||
amdtp_stream_stop(&bebob->tx_stream);
|
||||
|
||||
amdtp_stream_destroy(&bebob->rx_stream);
|
||||
amdtp_stream_destroy(&bebob->tx_stream);
|
||||
|
||||
destroy_both_connections(bebob);
|
||||
|
||||
mutex_unlock(&bebob->mutex);
|
||||
}
|
||||
|
||||
/*
|
||||
* See: Table 50: Extended Stream Format Info Format Hierarchy Level 2’
|
||||
* in Additional AVC commands (Nov 2003, BridgeCo)
|
||||
* Also 'Clause 12 AM824 sequence adaption layers' in IEC 61883-6:2005
|
||||
*/
|
||||
static int
|
||||
parse_stream_formation(u8 *buf, unsigned int len,
|
||||
struct snd_bebob_stream_formation *formation)
|
||||
{
|
||||
unsigned int i, e, channels, format;
|
||||
|
||||
/*
|
||||
* this module can support a hierarchy combination that:
|
||||
* Root: Audio and Music (0x90)
|
||||
* Level 1: AM824 Compound (0x40)
|
||||
*/
|
||||
if ((buf[0] != 0x90) || (buf[1] != 0x40))
|
||||
return -ENOSYS;
|
||||
|
||||
/* check sampling rate */
|
||||
for (i = 0; i < ARRAY_SIZE(bridgeco_freq_table); i++) {
|
||||
if (buf[2] == bridgeco_freq_table[i])
|
||||
break;
|
||||
}
|
||||
if (i == sizeof(bridgeco_freq_table))
|
||||
return -ENOSYS;
|
||||
|
||||
/* Avoid double count by different entries for the same rate. */
|
||||
memset(&formation[i], 0, sizeof(struct snd_bebob_stream_formation));
|
||||
|
||||
for (e = 0; e < buf[4]; e++) {
|
||||
channels = buf[5 + e * 2];
|
||||
format = buf[6 + e * 2];
|
||||
|
||||
switch (format) {
|
||||
/* IEC 60958-3, currently handle as MBLA */
|
||||
case 0x00:
|
||||
/* Multi bit linear audio */
|
||||
case 0x06: /* Raw */
|
||||
formation[i].pcm += channels;
|
||||
break;
|
||||
/* MIDI Conformant */
|
||||
case 0x0d:
|
||||
formation[i].midi += channels;
|
||||
break;
|
||||
/* IEC 61937-3 to 7 */
|
||||
case 0x01:
|
||||
case 0x02:
|
||||
case 0x03:
|
||||
case 0x04:
|
||||
case 0x05:
|
||||
/* Multi bit linear audio */
|
||||
case 0x07: /* DVD-Audio */
|
||||
case 0x0c: /* High Precision */
|
||||
/* One Bit Audio */
|
||||
case 0x08: /* (Plain) Raw */
|
||||
case 0x09: /* (Plain) SACD */
|
||||
case 0x0a: /* (Encoded) Raw */
|
||||
case 0x0b: /* (Encoded) SACD */
|
||||
/* Synchronization Stream (Stereo Raw audio) */
|
||||
case 0x40:
|
||||
/* Don't care */
|
||||
case 0xff:
|
||||
default:
|
||||
return -ENOSYS; /* not supported */
|
||||
}
|
||||
}
|
||||
|
||||
if (formation[i].pcm > AMDTP_MAX_CHANNELS_FOR_PCM ||
|
||||
formation[i].midi > AMDTP_MAX_CHANNELS_FOR_MIDI)
|
||||
return -ENOSYS;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
fill_stream_formations(struct snd_bebob *bebob, enum avc_bridgeco_plug_dir dir,
|
||||
unsigned short pid)
|
||||
{
|
||||
u8 *buf;
|
||||
struct snd_bebob_stream_formation *formations;
|
||||
unsigned int len, eid;
|
||||
u8 addr[AVC_BRIDGECO_ADDR_BYTES];
|
||||
int err;
|
||||
|
||||
buf = kmalloc(FORMAT_MAXIMUM_LENGTH, GFP_KERNEL);
|
||||
if (buf == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
if (dir == AVC_BRIDGECO_PLUG_DIR_IN)
|
||||
formations = bebob->rx_stream_formations;
|
||||
else
|
||||
formations = bebob->tx_stream_formations;
|
||||
|
||||
for (eid = 0; eid < SND_BEBOB_STRM_FMT_ENTRIES; eid++) {
|
||||
len = FORMAT_MAXIMUM_LENGTH;
|
||||
avc_bridgeco_fill_unit_addr(addr, dir,
|
||||
AVC_BRIDGECO_PLUG_UNIT_ISOC, pid);
|
||||
err = avc_bridgeco_get_plug_strm_fmt(bebob->unit, addr, buf,
|
||||
&len, eid);
|
||||
/* No entries remained. */
|
||||
if (err == -EINVAL && eid > 0) {
|
||||
err = 0;
|
||||
break;
|
||||
} else if (err < 0) {
|
||||
dev_err(&bebob->unit->device,
|
||||
"fail to get stream format %d for isoc %s plug %d:%d\n",
|
||||
eid,
|
||||
(dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" :
|
||||
"out",
|
||||
pid, err);
|
||||
break;
|
||||
}
|
||||
|
||||
err = parse_stream_formation(buf, len, formations);
|
||||
if (err < 0)
|
||||
break;
|
||||
}
|
||||
|
||||
kfree(buf);
|
||||
return err;
|
||||
}
|
||||
|
||||
static int
|
||||
seek_msu_sync_input_plug(struct snd_bebob *bebob)
|
||||
{
|
||||
u8 plugs[AVC_PLUG_INFO_BUF_BYTES], addr[AVC_BRIDGECO_ADDR_BYTES];
|
||||
unsigned int i, type;
|
||||
int err;
|
||||
|
||||
/* Get the number of Music Sub Unit for both direction. */
|
||||
err = avc_general_get_plug_info(bebob->unit, 0x0c, 0x00, 0x00, plugs);
|
||||
if (err < 0) {
|
||||
dev_err(&bebob->unit->device,
|
||||
"fail to get info for MSU in/out plugs: %d\n",
|
||||
err);
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* seek destination plugs for 'MSU sync input' */
|
||||
bebob->sync_input_plug = -1;
|
||||
for (i = 0; i < plugs[0]; i++) {
|
||||
avc_bridgeco_fill_msu_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, i);
|
||||
err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type);
|
||||
if (err < 0) {
|
||||
dev_err(&bebob->unit->device,
|
||||
"fail to get type for MSU in plug %d: %d\n",
|
||||
i, err);
|
||||
goto end;
|
||||
}
|
||||
|
||||
if (type == AVC_BRIDGECO_PLUG_TYPE_SYNC) {
|
||||
bebob->sync_input_plug = i;
|
||||
break;
|
||||
}
|
||||
}
|
||||
end:
|
||||
return err;
|
||||
}
|
||||
|
||||
int snd_bebob_stream_discover(struct snd_bebob *bebob)
|
||||
{
|
||||
u8 plugs[AVC_PLUG_INFO_BUF_BYTES], addr[AVC_BRIDGECO_ADDR_BYTES];
|
||||
enum avc_bridgeco_plug_type type;
|
||||
unsigned int i;
|
||||
int err;
|
||||
|
||||
/* the number of plugs for isoc in/out, ext in/out */
|
||||
err = avc_general_get_plug_info(bebob->unit, 0x1f, 0x07, 0x00, plugs);
|
||||
if (err < 0) {
|
||||
dev_err(&bebob->unit->device,
|
||||
"fail to get info for isoc/external in/out plugs: %d\n",
|
||||
err);
|
||||
goto end;
|
||||
}
|
||||
|
||||
/*
|
||||
* This module supports at least one isoc input plug and one isoc
|
||||
* output plug.
|
||||
*/
|
||||
if ((plugs[0] == 0) || (plugs[1] == 0)) {
|
||||
err = -ENOSYS;
|
||||
goto end;
|
||||
}
|
||||
|
||||
avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN,
|
||||
AVC_BRIDGECO_PLUG_UNIT_ISOC, 0);
|
||||
err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type);
|
||||
if (err < 0) {
|
||||
dev_err(&bebob->unit->device,
|
||||
"fail to get type for isoc in plug 0: %d\n", err);
|
||||
goto end;
|
||||
} else if (type != AVC_BRIDGECO_PLUG_TYPE_ISOC) {
|
||||
err = -ENOSYS;
|
||||
goto end;
|
||||
}
|
||||
err = fill_stream_formations(bebob, AVC_BRIDGECO_PLUG_DIR_IN, 0);
|
||||
if (err < 0)
|
||||
goto end;
|
||||
|
||||
avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_OUT,
|
||||
AVC_BRIDGECO_PLUG_UNIT_ISOC, 0);
|
||||
err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type);
|
||||
if (err < 0) {
|
||||
dev_err(&bebob->unit->device,
|
||||
"fail to get type for isoc out plug 0: %d\n", err);
|
||||
goto end;
|
||||
} else if (type != AVC_BRIDGECO_PLUG_TYPE_ISOC) {
|
||||
err = -ENOSYS;
|
||||
goto end;
|
||||
}
|
||||
err = fill_stream_formations(bebob, AVC_BRIDGECO_PLUG_DIR_OUT, 0);
|
||||
if (err < 0)
|
||||
goto end;
|
||||
|
||||
/* count external input plugs for MIDI */
|
||||
bebob->midi_input_ports = 0;
|
||||
for (i = 0; i < plugs[2]; i++) {
|
||||
avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN,
|
||||
AVC_BRIDGECO_PLUG_UNIT_EXT, i);
|
||||
err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type);
|
||||
if (err < 0) {
|
||||
dev_err(&bebob->unit->device,
|
||||
"fail to get type for external in plug %d: %d\n",
|
||||
i, err);
|
||||
goto end;
|
||||
} else if (type == AVC_BRIDGECO_PLUG_TYPE_MIDI) {
|
||||
bebob->midi_input_ports++;
|
||||
}
|
||||
}
|
||||
|
||||
/* count external output plugs for MIDI */
|
||||
bebob->midi_output_ports = 0;
|
||||
for (i = 0; i < plugs[3]; i++) {
|
||||
avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_OUT,
|
||||
AVC_BRIDGECO_PLUG_UNIT_EXT, i);
|
||||
err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type);
|
||||
if (err < 0) {
|
||||
dev_err(&bebob->unit->device,
|
||||
"fail to get type for external out plug %d: %d\n",
|
||||
i, err);
|
||||
goto end;
|
||||
} else if (type == AVC_BRIDGECO_PLUG_TYPE_MIDI) {
|
||||
bebob->midi_output_ports++;
|
||||
}
|
||||
}
|
||||
|
||||
/* for check source of clock later */
|
||||
err = seek_msu_sync_input_plug(bebob);
|
||||
end:
|
||||
return err;
|
||||
}
|
||||
Loading…
Reference in a new issue