forked from Minki/linux
ALSA: dice: add a proc file to show device information
For easier debugging, add a proc file to show the device's capabilities and current status. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
This commit is contained in:
Clemens Ladisch
parent
640d9b421d
commit
c614475b0e
@ -22,6 +22,7 @@
|
||||
#include <sound/core.h>
|
||||
#include <sound/firewire.h>
|
||||
#include <sound/hwdep.h>
|
||||
#include <sound/info.h>
|
||||
#include <sound/initval.h>
|
||||
#include <sound/pcm.h>
|
||||
#include <sound/pcm_params.h>
|
||||
@ -857,6 +858,249 @@ static int dice_create_hwdep(struct dice *dice)
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int dice_proc_read_mem(struct dice *dice, void *buffer,
|
||||
unsigned int offset_q, unsigned int quadlets)
|
||||
{
|
||||
unsigned int i;
|
||||
int err;
|
||||
|
||||
err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST,
|
||||
DICE_PRIVATE_SPACE + 4 * offset_q,
|
||||
buffer, 4 * quadlets, 0);
|
||||
if (err < 0)
|
||||
return err;
|
||||
|
||||
for (i = 0; i < quadlets; ++i)
|
||||
be32_to_cpus(&((u32 *)buffer)[i]);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const char *str_from_array(const char *const strs[], unsigned int count,
|
||||
unsigned int i)
|
||||
{
|
||||
if (i < count)
|
||||
return strs[i];
|
||||
else
|
||||
return "(unknown)";
|
||||
}
|
||||
|
||||
static void dice_proc_fixup_string(char *s, unsigned int size)
|
||||
{
|
||||
unsigned int i;
|
||||
|
||||
for (i = 0; i < size; i += 4)
|
||||
cpu_to_le32s((u32 *)(s + i));
|
||||
|
||||
for (i = 0; i < size - 2; ++i) {
|
||||
if (s[i] == '\0')
|
||||
return;
|
||||
if (s[i] == '\\' && s[i + 1] == '\\') {
|
||||
s[i + 2] = '\0';
|
||||
return;
|
||||
}
|
||||
}
|
||||
s[size - 1] = '\0';
|
||||
}
|
||||
|
||||
static void dice_proc_read(struct snd_info_entry *entry,
|
||||
struct snd_info_buffer *buffer)
|
||||
{
|
||||
static const char *const section_names[5] = {
|
||||
"global", "tx", "rx", "ext_sync", "unused2"
|
||||
};
|
||||
static const char *const clock_sources[] = {
|
||||
"aes1", "aes2", "aes3", "aes4", "aes", "adat", "tdif",
|
||||
"wc", "arx1", "arx2", "arx3", "arx4", "internal"
|
||||
};
|
||||
static const char *const rates[] = {
|
||||
"32000", "44100", "48000", "88200", "96000", "176400", "192000",
|
||||
"any low", "any mid", "any high", "none"
|
||||
};
|
||||
struct dice *dice = entry->private_data;
|
||||
u32 sections[ARRAY_SIZE(section_names) * 2];
|
||||
struct {
|
||||
u32 number;
|
||||
u32 size;
|
||||
} tx_rx_header;
|
||||
union {
|
||||
struct {
|
||||
u32 owner_hi, owner_lo;
|
||||
u32 notification;
|
||||
char nick_name[NICK_NAME_SIZE];
|
||||
u32 clock_select;
|
||||
u32 enable;
|
||||
u32 status;
|
||||
u32 extended_status;
|
||||
u32 sample_rate;
|
||||
u32 version;
|
||||
u32 clock_caps;
|
||||
char clock_source_names[CLOCK_SOURCE_NAMES_SIZE];
|
||||
} global;
|
||||
struct {
|
||||
u32 iso;
|
||||
u32 number_audio;
|
||||
u32 number_midi;
|
||||
u32 speed;
|
||||
char names[TX_NAMES_SIZE];
|
||||
u32 ac3_caps;
|
||||
u32 ac3_enable;
|
||||
} tx;
|
||||
struct {
|
||||
u32 iso;
|
||||
u32 seq_start;
|
||||
u32 number_audio;
|
||||
u32 number_midi;
|
||||
char names[RX_NAMES_SIZE];
|
||||
u32 ac3_caps;
|
||||
u32 ac3_enable;
|
||||
} rx;
|
||||
struct {
|
||||
u32 clock_source;
|
||||
u32 locked;
|
||||
u32 rate;
|
||||
u32 adat_user_data;
|
||||
} ext_sync;
|
||||
} buf;
|
||||
unsigned int quadlets, stream, i;
|
||||
|
||||
if (dice_proc_read_mem(dice, sections, 0, ARRAY_SIZE(sections)) < 0)
|
||||
return;
|
||||
snd_iprintf(buffer, "sections:\n");
|
||||
for (i = 0; i < ARRAY_SIZE(section_names); ++i)
|
||||
snd_iprintf(buffer, " %s: offset %u, size %u\n",
|
||||
section_names[i],
|
||||
sections[i * 2], sections[i * 2 + 1]);
|
||||
|
||||
quadlets = min_t(u32, sections[1], sizeof(buf.global) / 4);
|
||||
if (dice_proc_read_mem(dice, &buf.global, sections[0], quadlets) < 0)
|
||||
return;
|
||||
snd_iprintf(buffer, "global:\n");
|
||||
snd_iprintf(buffer, " owner: %04x:%04x%08x\n",
|
||||
buf.global.owner_hi >> 16,
|
||||
buf.global.owner_hi & 0xffff, buf.global.owner_lo);
|
||||
snd_iprintf(buffer, " notification: %08x\n", buf.global.notification);
|
||||
dice_proc_fixup_string(buf.global.nick_name, NICK_NAME_SIZE);
|
||||
snd_iprintf(buffer, " nick name: %s\n", buf.global.nick_name);
|
||||
snd_iprintf(buffer, " clock select: %s %s\n",
|
||||
str_from_array(clock_sources, ARRAY_SIZE(clock_sources),
|
||||
buf.global.clock_select & CLOCK_SOURCE_MASK),
|
||||
str_from_array(rates, ARRAY_SIZE(rates),
|
||||
(buf.global.clock_select & CLOCK_RATE_MASK)
|
||||
>> CLOCK_RATE_SHIFT));
|
||||
snd_iprintf(buffer, " enable: %u\n", buf.global.enable);
|
||||
snd_iprintf(buffer, " status: %slocked %s\n",
|
||||
buf.global.status & STATUS_SOURCE_LOCKED ? "" : "un",
|
||||
str_from_array(rates, ARRAY_SIZE(rates),
|
||||
(buf.global.status &
|
||||
STATUS_NOMINAL_RATE_MASK)
|
||||
>> CLOCK_RATE_SHIFT));
|
||||
snd_iprintf(buffer, " ext status: %08x\n", buf.global.extended_status);
|
||||
snd_iprintf(buffer, " sample rate: %u\n", buf.global.sample_rate);
|
||||
snd_iprintf(buffer, " version: %u.%u.%u.%u\n",
|
||||
(buf.global.version >> 24) & 0xff,
|
||||
(buf.global.version >> 16) & 0xff,
|
||||
(buf.global.version >> 8) & 0xff,
|
||||
(buf.global.version >> 0) & 0xff);
|
||||
if (quadlets >= 90) {
|
||||
snd_iprintf(buffer, " clock caps:");
|
||||
for (i = 0; i <= 6; ++i)
|
||||
if (buf.global.clock_caps & (1 << i))
|
||||
snd_iprintf(buffer, " %s", rates[i]);
|
||||
for (i = 0; i <= 12; ++i)
|
||||
if (buf.global.clock_caps & (1 << (16 + i)))
|
||||
snd_iprintf(buffer, " %s", clock_sources[i]);
|
||||
snd_iprintf(buffer, "\n");
|
||||
dice_proc_fixup_string(buf.global.clock_source_names,
|
||||
CLOCK_SOURCE_NAMES_SIZE);
|
||||
snd_iprintf(buffer, " clock source names: %s\n",
|
||||
buf.global.clock_source_names);
|
||||
}
|
||||
|
||||
if (dice_proc_read_mem(dice, &tx_rx_header, sections[2], 2) < 0)
|
||||
return;
|
||||
quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.tx));
|
||||
for (stream = 0; stream < tx_rx_header.number; ++stream) {
|
||||
if (dice_proc_read_mem(dice, &buf.tx, sections[2] + 2 +
|
||||
stream * tx_rx_header.size,
|
||||
quadlets) < 0)
|
||||
break;
|
||||
snd_iprintf(buffer, "tx %u:\n", stream);
|
||||
snd_iprintf(buffer, " iso channel: %d\n", (int)buf.tx.iso);
|
||||
snd_iprintf(buffer, " audio channels: %u\n",
|
||||
buf.tx.number_audio);
|
||||
snd_iprintf(buffer, " midi ports: %u\n", buf.tx.number_midi);
|
||||
snd_iprintf(buffer, " speed: S%u\n", 100u << buf.tx.speed);
|
||||
if (quadlets >= 68) {
|
||||
dice_proc_fixup_string(buf.tx.names, TX_NAMES_SIZE);
|
||||
snd_iprintf(buffer, " names: %s\n", buf.tx.names);
|
||||
}
|
||||
if (quadlets >= 70) {
|
||||
snd_iprintf(buffer, " ac3 caps: %08x\n",
|
||||
buf.tx.ac3_caps);
|
||||
snd_iprintf(buffer, " ac3 enable: %08x\n",
|
||||
buf.tx.ac3_enable);
|
||||
}
|
||||
}
|
||||
|
||||
if (dice_proc_read_mem(dice, &tx_rx_header, sections[4], 2) < 0)
|
||||
return;
|
||||
quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.rx));
|
||||
for (stream = 0; stream < tx_rx_header.number; ++stream) {
|
||||
if (dice_proc_read_mem(dice, &buf.rx, sections[4] + 2 +
|
||||
stream * tx_rx_header.size,
|
||||
quadlets) < 0)
|
||||
break;
|
||||
snd_iprintf(buffer, "rx %u:\n", stream);
|
||||
snd_iprintf(buffer, " iso channel: %d\n", (int)buf.rx.iso);
|
||||
snd_iprintf(buffer, " sequence start: %u\n",
|
||||
(int)buf.rx.seq_start);
|
||||
snd_iprintf(buffer, " audio channels: %u\n",
|
||||
buf.rx.number_audio);
|
||||
snd_iprintf(buffer, " midi ports: %u\n", buf.rx.number_midi);
|
||||
if (quadlets >= 68) {
|
||||
dice_proc_fixup_string(buf.rx.names, RX_NAMES_SIZE);
|
||||
snd_iprintf(buffer, " names: %s\n", buf.rx.names);
|
||||
}
|
||||
if (quadlets >= 70) {
|
||||
snd_iprintf(buffer, " ac3 caps: %08x\n",
|
||||
buf.rx.ac3_caps);
|
||||
snd_iprintf(buffer, " ac3 enable: %08x\n",
|
||||
buf.rx.ac3_enable);
|
||||
}
|
||||
}
|
||||
|
||||
quadlets = min_t(u32, sections[7], sizeof(buf.ext_sync) / 4);
|
||||
if (quadlets >= 4) {
|
||||
if (dice_proc_read_mem(dice, &buf.ext_sync,
|
||||
sections[6], 4) < 0)
|
||||
return;
|
||||
snd_iprintf(buffer, "ext status:\n");
|
||||
snd_iprintf(buffer, " clock source: %s\n",
|
||||
str_from_array(clock_sources,
|
||||
ARRAY_SIZE(clock_sources),
|
||||
buf.ext_sync.clock_source));
|
||||
snd_iprintf(buffer, " locked: %u\n", buf.ext_sync.locked);
|
||||
snd_iprintf(buffer, " rate: %s\n",
|
||||
str_from_array(rates, ARRAY_SIZE(rates),
|
||||
buf.ext_sync.rate));
|
||||
snd_iprintf(buffer, " adat user data: ");
|
||||
if (buf.ext_sync.adat_user_data & ADAT_USER_DATA_NO_DATA)
|
||||
snd_iprintf(buffer, "-\n");
|
||||
else
|
||||
snd_iprintf(buffer, "%x\n",
|
||||
buf.ext_sync.adat_user_data);
|
||||
}
|
||||
}
|
||||
|
||||
static void dice_create_proc(struct dice *dice)
|
||||
{
|
||||
struct snd_info_entry *entry;
|
||||
|
||||
if (!snd_card_proc_new(dice->card, "dice", &entry))
|
||||
snd_info_set_text_ops(entry, dice, dice_proc_read);
|
||||
}
|
||||
|
||||
static void dice_card_free(struct snd_card *card)
|
||||
{
|
||||
struct dice *dice = card->private_data;
|
||||
@ -1131,6 +1375,8 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
|
||||
if (err < 0)
|
||||
goto error;
|
||||
|
||||
dice_create_proc(dice);
|
||||
|
||||
err = snd_card_register(card);
|
||||
if (err < 0)
|
||||
goto error;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user