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ALSA: firewire-motu: fix register handling for 896 

After further investigation, I find out some mistakes for 896 about its
register. This commit fixes it.

Fixes: b431f16f16 ("ALSA: firewire-motu: add support for MOTU 896")
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20210623075941.72562-10-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2021-06-23 16:59:41 +09:00 committed by Takashi Iwai
parent e949e338d7
commit ae44705f98
1 changed files with 23 additions and 10 deletions
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33
sound/firewire/motu/motu-protocol-v1.c
View File

@ -61,13 +61,21 @@
// Status register for MOTU 896 (0x'ffff'f000'0b14).
//
// 0x20000000: fetch PCM frames from communication IC to DAC.
// 0xf0000000: enable physical and stream input to DAC.
// 0x80000000: disable
// 0x40000000: disable
// 0x20000000: enable (prior to the other bits)
// 0x10000000: disable
// 0x00000000: disable
// 0x08000000: speed of word clock signal output on BNC interface.
// 0x00000000: follow to system clock.
// 0x08000000: half of system clock.
// 0x01000000: Route main output to headphone output.
// 0x00ffff00: input to monitor.
// 0x00000000: none
// 0x00000000: force to low rate (44.1/48.0 kHz).
// 0x08000000: follow to system clock.
// 0x04000000: something relevant to clock.
// 0x03000000: enable output.
// 0x02000000: enabled irreversibly once standing unless the device voluntarily disables it.
// 0x01000000: enabled irreversibly once standing unless the device voluntarily disables it.
// 0x00ffff00: monitor input mode.
// 0x00000000: disabled
// 0x00004800: analog-1/2
// 0x00005a00: analog-3/4
// 0x00006c00: analog-5/6
@ -83,7 +91,7 @@
// 0x00007f00: analog-8
// 0x00104000: AES/EBU-1
// 0x00104900: AES/EBU-2
// 0x00000060: sample rate conversin for AES/EBU input/output.
// 0x00000060: sample rate conversion for AES/EBU input/output.
// 0x00000000: None
// 0x00000020: input signal is converted to system rate
// 0x00000040: output is slave to input, ignoring system rate
@ -97,16 +105,18 @@
// 0x00000000: internal
// 0x00000001: ADAT on optical interface
// 0x00000002: AES/EBU on XLR
// 0x00000003: source packet header (SPH)
// 0x00000004: word clock on BNC
// 0x00000005: ADAT on Dsub 9pin
#define CLK_896_STATUS_OFFSET 0x0b14
#define CLK_896_STATUS_FLAG_FETCH_ENABLE 0x20000000
#define CLK_896_STATUS_FLAG_MAIN_TO_HP 0x01000000
#define CLK_896_STATUS_FLAG_OUTPUT_ON 0x03000000
#define CLK_896_STATUS_MASK_SRC 0x00000007
#define CLK_896_STATUS_FLAG_SRC_INTERNAL 0x00000000
#define CLK_896_STATUS_FLAG_SRC_ADAT_ON_OPT 0x00000001
#define CLK_896_STATUS_FLAG_SRC_AESEBU 0x00000002
#define CLK_896_STATUS_FLAG_SRC_SPH 0x00000003
#define CLK_896_STATUS_FLAG_SRC_WORD 0x00000004
#define CLK_896_STATUS_FLAG_SRC_ADAT_ON_DSUB 0x00000005
#define CLK_896_STATUS_MASK_RATE 0x00000018
@ -304,6 +314,9 @@ static int get_clock_source_896(struct snd_motu *motu, enum snd_motu_clock_sourc
case CLK_896_STATUS_FLAG_SRC_AESEBU:
*src = SND_MOTU_CLOCK_SOURCE_AESEBU_ON_XLR;
break;
case CLK_896_STATUS_FLAG_SRC_SPH:
*src = SND_MOTU_CLOCK_SOURCE_SPH;
break;
case CLK_896_STATUS_FLAG_SRC_WORD:
*src = SND_MOTU_CLOCK_SOURCE_WORD_ON_BNC;
break;
@ -362,9 +375,9 @@ static int switch_fetching_mode_896(struct snd_motu *motu, bool enable)
return err;
data = be32_to_cpu(reg);
data &= ~(CLK_896_STATUS_FLAG_FETCH_ENABLE | CLK_896_STATUS_FLAG_MAIN_TO_HP);
data &= ~CLK_896_STATUS_FLAG_FETCH_ENABLE;
if (enable)
data |= (CLK_896_STATUS_FLAG_FETCH_ENABLE | CLK_896_STATUS_FLAG_MAIN_TO_HP);
data |= CLK_896_STATUS_FLAG_FETCH_ENABLE | CLK_896_STATUS_FLAG_OUTPUT_ON;
reg = cpu_to_be32(data);
return snd_motu_transaction_write(motu, CLK_896_STATUS_OFFSET, &reg, sizeof(reg));