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ALSA: fireface: code refactoring for dump of sync status
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This commit adds refactoring for dump of sync status by adding
tables for check bits.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Takashi Sakamoto authored and Takashi Iwai committed Jan 21, 2019
1 parent b1d0cb0 commit 22f7458
Showing 1 changed file with 75 additions and 101 deletions.
176 changes: 75 additions & 101 deletions sound/firewire/fireface/ff-protocol-former.c
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Original file line number Diff line number Diff line change
Expand Up @@ -190,126 +190,100 @@ static void dump_clock_config(struct snd_ff *ff, struct snd_info_buffer *buffer)

static void dump_sync_status(struct snd_ff *ff, struct snd_info_buffer *buffer)
{
__le32 reg;
u32 data;
static const struct {
char *const label;
u32 locked_mask;
u32 synced_mask;
} *clk_entry, clk_entries[] = {
{ "WDClk", 0x40000000, 0x20000000, },
{ "S/PDIF", 0x00080000, 0x00040000, },
{ "ADAT1", 0x00000400, 0x00001000, },
{ "ADAT2", 0x00000800, 0x00002000, },
};
static const struct {
char *const label;
u32 mask;
} *referred_entry, referred_entries[] = {
{ "ADAT1", 0x00000000, },
{ "ADAT2", 0x00400000, },
{ "S/PDIF", 0x00c00000, },
{ "WDclk", 0x01000000, },
{ "TCO", 0x01400000, },
};
static const struct {
unsigned int rate;
u32 mask;
} *rate_entry, rate_entries[] = {
{ 32000, 0x02000000, },
{ 44100, 0x04000000, },
{ 48000, 0x06000000, },
{ 64000, 0x08000000, },
{ 88200, 0x0a000000, },
{ 96000, 0x0c000000, },
{ 128000, 0x0e000000, },
{ 176400, 0x10000000, },
{ 192000, 0x12000000, },
};
__le32 reg[2];
u32 data[2];
int i;
int err;

err = snd_fw_transaction(ff->unit, TCODE_READ_QUADLET_REQUEST,
FORMER_REG_SYNC_STATUS, &reg, sizeof(reg), 0);
err = snd_fw_transaction(ff->unit, TCODE_READ_BLOCK_REQUEST,
FORMER_REG_SYNC_STATUS, reg, sizeof(reg), 0);
if (err < 0)
return;

data = le32_to_cpu(reg);
data[0] = le32_to_cpu(reg[0]);
data[1] = le32_to_cpu(reg[1]);

snd_iprintf(buffer, "External source detection:\n");

snd_iprintf(buffer, "Word Clock:");
if ((data >> 24) & 0x20) {
if ((data >> 24) & 0x40)
snd_iprintf(buffer, "sync\n");
else
snd_iprintf(buffer, "lock\n");
} else {
snd_iprintf(buffer, "none\n");
}
for (i = 0; i < ARRAY_SIZE(clk_entries); ++i) {
const char *state;

clk_entry = clk_entries + i;
if (data[0] & clk_entry->locked_mask) {
if (data[0] & clk_entry->synced_mask)
state = "sync";
else
state = "lock";
} else {
state = "none";
}

snd_iprintf(buffer, "S/PDIF:");
if ((data >> 16) & 0x10) {
if ((data >> 16) & 0x04)
snd_iprintf(buffer, "sync\n");
else
snd_iprintf(buffer, "lock\n");
} else {
snd_iprintf(buffer, "none\n");
snd_iprintf(buffer, "%s: %s\n", clk_entry->label, state);
}

snd_iprintf(buffer, "ADAT1:");
if ((data >> 8) & 0x04) {
if ((data >> 8) & 0x10)
snd_iprintf(buffer, "sync\n");
else
snd_iprintf(buffer, "lock\n");
} else {
snd_iprintf(buffer, "none\n");
}
snd_iprintf(buffer, "Referred clock:\n");

snd_iprintf(buffer, "ADAT2:");
if ((data >> 8) & 0x08) {
if ((data >> 8) & 0x20)
snd_iprintf(buffer, "sync\n");
else
snd_iprintf(buffer, "lock\n");
if (data[1] & 0x00000001) {
snd_iprintf(buffer, "Internal\n");
} else {
snd_iprintf(buffer, "none\n");
}
unsigned int rate;
const char *label;

snd_iprintf(buffer, "\nUsed external source:\n");

if (((data >> 22) & 0x07) == 0x07) {
snd_iprintf(buffer, "None\n");
} else {
switch ((data >> 22) & 0x07) {
case 0x00:
snd_iprintf(buffer, "ADAT1:");
break;
case 0x01:
snd_iprintf(buffer, "ADAT2:");
break;
case 0x03:
snd_iprintf(buffer, "S/PDIF:");
break;
case 0x04:
snd_iprintf(buffer, "Word:");
break;
case 0x07:
snd_iprintf(buffer, "Nothing:");
break;
case 0x02:
case 0x05:
case 0x06:
default:
snd_iprintf(buffer, "unknown:");
break;
for (i = 0; i < ARRAY_SIZE(referred_entries); ++i) {
referred_entry = referred_entries + i;
if ((data[0] & 0x1e0000) == referred_entry->mask) {
label = referred_entry->label;
break;
}
}
if (i == ARRAY_SIZE(referred_entries))
label = "none";

if ((data >> 25) & 0x07) {
switch ((data >> 25) & 0x07) {
case 0x01:
snd_iprintf(buffer, "32000\n");
break;
case 0x02:
snd_iprintf(buffer, "44100\n");
break;
case 0x03:
snd_iprintf(buffer, "48000\n");
break;
case 0x04:
snd_iprintf(buffer, "64000\n");
break;
case 0x05:
snd_iprintf(buffer, "88200\n");
break;
case 0x06:
snd_iprintf(buffer, "96000\n");
break;
case 0x07:
snd_iprintf(buffer, "128000\n");
break;
case 0x08:
snd_iprintf(buffer, "176400\n");
break;
case 0x09:
snd_iprintf(buffer, "192000\n");
break;
case 0x00:
snd_iprintf(buffer, "unknown\n");
for (i = 0; i < ARRAY_SIZE(rate_entries); ++i) {
rate_entry = rate_entries + i;
if ((data[0] & 0x1e000000) == rate_entry->mask) {
rate = rate_entry->rate;
break;
}
}
}
if (i == ARRAY_SIZE(rate_entries))
rate = 0;

snd_iprintf(buffer, "Multiplied:");
snd_iprintf(buffer, "%d\n", (data & 0x3ff) * 250);
snd_iprintf(buffer, "%s %d\n", label, rate);
}
}

static void former_dump_status(struct snd_ff *ff,
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