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author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2019-01-20 17:25:50 +0900 |
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committer | Takashi Iwai <tiwai@suse.de> | 2019-01-21 15:12:20 +0100 |
commit | b1d0cb0ae511c0558155c4d4cbb852c9e53bfb67 (patch) | |
tree | 2c735660762dfa18187fdb04048b37a1eee20a94 /sound/firewire/fireface/ff-transaction.c | |
parent | ae3053c28b86f4f9d4480f6d3ac27f43d8e657ef (diff) |
ALSA: fireface: add protocol-dependent operation to get clock status
This commit adds a member for a callback function to get clock status
to former protocol.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/fireface/ff-transaction.c')
-rw-r--r-- | sound/firewire/fireface/ff-transaction.c | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/sound/firewire/fireface/ff-transaction.c b/sound/firewire/fireface/ff-transaction.c index 5f4ddfd55403..065e045d3fb5 100644 --- a/sound/firewire/fireface/ff-transaction.c +++ b/sound/firewire/fireface/ff-transaction.c @@ -11,69 +11,6 @@ #define SND_FF_REG_MIDI_RX_PORT_0 0x000080180000ull #define SND_FF_REG_MIDI_RX_PORT_1 0x000080190000ull -int snd_ff_transaction_get_clock(struct snd_ff *ff, unsigned int *rate, - enum snd_ff_clock_src *src) -{ - __le32 reg; - u32 data; - int err; - - err = snd_fw_transaction(ff->unit, TCODE_READ_QUADLET_REQUEST, - SND_FF_REG_CLOCK_CONFIG, ®, sizeof(reg), 0); - if (err < 0) - return err; - data = le32_to_cpu(reg); - - /* Calculate sampling rate. */ - switch ((data >> 1) & 0x03) { - case 0x01: - *rate = 32000; - break; - case 0x00: - *rate = 44100; - break; - case 0x03: - *rate = 48000; - break; - case 0x02: - default: - return -EIO; - } - - if (data & 0x08) - *rate *= 2; - else if (data & 0x10) - *rate *= 4; - - /* Calculate source of clock. */ - if (data & 0x01) { - *src = SND_FF_CLOCK_SRC_INTERNAL; - } else { - /* TODO: 0x02, 0x06, 0x07? */ - switch ((data >> 10) & 0x07) { - case 0x00: - *src = SND_FF_CLOCK_SRC_ADAT1; - break; - case 0x01: - *src = SND_FF_CLOCK_SRC_ADAT2; - break; - case 0x03: - *src = SND_FF_CLOCK_SRC_SPDIF; - break; - case 0x04: - *src = SND_FF_CLOCK_SRC_WORD; - break; - case 0x05: - *src = SND_FF_CLOCK_SRC_LTC; - break; - default: - return -EIO; - } - } - - return 0; -} - static void finish_transmit_midi_msg(struct snd_ff *ff, unsigned int port, int rcode) { |