diff options
Diffstat (limited to 'sound/firewire/fireface/ff-protocol-latter.c')
| -rw-r--r-- | sound/firewire/fireface/ff-protocol-latter.c | 46 |
1 files changed, 33 insertions, 13 deletions
diff --git a/sound/firewire/fireface/ff-protocol-latter.c b/sound/firewire/fireface/ff-protocol-latter.c index 76ae568489ef..ea885e725950 100644 --- a/sound/firewire/fireface/ff-protocol-latter.c +++ b/sound/firewire/fireface/ff-protocol-latter.c @@ -16,7 +16,8 @@ #define LATTER_SYNC_STATUS 0x0000801c0000ULL static int parse_clock_bits(u32 data, unsigned int *rate, - enum snd_ff_clock_src *src) + enum snd_ff_clock_src *src, + enum snd_ff_unit_version unit_version) { static const struct { unsigned int rate; @@ -43,6 +44,11 @@ static int parse_clock_bits(u32 data, unsigned int *rate, }; int i; + if (unit_version != SND_FF_UNIT_VERSION_UCX) { + // e.g. 0x00fe0f20 but expected 0x00eff002. + data = ((data & 0xf0f0f0f0) >> 4) | ((data & 0x0f0f0f0f) << 4); + } + for (i = 0; i < ARRAY_SIZE(rate_entries); ++i) { rate_entry = rate_entries + i; if ((data & 0x0f000000) == rate_entry->flag) { @@ -79,7 +85,7 @@ static int latter_get_clock(struct snd_ff *ff, unsigned int *rate, return err; data = le32_to_cpu(reg); - return parse_clock_bits(data, rate, src); + return parse_clock_bits(data, rate, src, ff->unit_version); } static int latter_switch_fetching_mode(struct snd_ff *ff, bool enable) @@ -181,14 +187,30 @@ static int latter_begin_session(struct snd_ff *ff, unsigned int rate) __le32 reg; int err; - if (rate >= 32000 && rate <= 48000) - flag = 0x92; - else if (rate >= 64000 && rate <= 96000) - flag = 0x8e; - else if (rate >= 128000 && rate <= 192000) - flag = 0x8c; - else - return -EINVAL; + if (ff->unit_version == SND_FF_UNIT_VERSION_UCX) { + // For Fireface UCX. Always use the maximum number of data + // channels in data block of packet. + if (rate >= 32000 && rate <= 48000) + flag = 0x92; + else if (rate >= 64000 && rate <= 96000) + flag = 0x8e; + else if (rate >= 128000 && rate <= 192000) + flag = 0x8c; + else + return -EINVAL; + } else { + // For Fireface 802. Due to bandwidth limitation on + // IEEE 1394a (400 Mbps), Analog 1-12 and AES are available + // without any ADAT at quadruple speed. + if (rate >= 32000 && rate <= 48000) + flag = 0x9e; + else if (rate >= 64000 && rate <= 96000) + flag = 0x96; + else if (rate >= 128000 && rate <= 192000) + flag = 0x8e; + else + return -EINVAL; + } if (generation != fw_parent_device(ff->unit)->card->generation) { err = fw_iso_resources_update(&ff->tx_resources); @@ -207,8 +229,6 @@ static int latter_begin_session(struct snd_ff *ff, unsigned int rate) if (err < 0) return err; - // Always use the maximum number of data channels in data block of - // packet. reg = cpu_to_le32(flag); return snd_fw_transaction(ff->unit, TCODE_WRITE_QUADLET_REQUEST, LATTER_ISOC_START, ®, sizeof(reg), 0); @@ -263,7 +283,7 @@ static void latter_dump_status(struct snd_ff *ff, struct snd_info_buffer *buffer } } - err = parse_clock_bits(data, &rate, &src); + err = parse_clock_bits(data, &rate, &src, ff->unit_version); if (err < 0) return; label = snd_ff_proc_get_clk_label(src); |