diff options
Diffstat (limited to 'sound/firewire/motu/motu-protocol-v2.c')
| -rw-r--r-- | sound/firewire/motu/motu-protocol-v2.c | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/sound/firewire/motu/motu-protocol-v2.c b/sound/firewire/motu/motu-protocol-v2.c index e5bd3ac02300..453fc29fade7 100644 --- a/sound/firewire/motu/motu-protocol-v2.c +++ b/sound/firewire/motu/motu-protocol-v2.c @@ -13,6 +13,8 @@ #define V2_CLOCK_RATE_SHIFT 3 #define V2_CLOCK_SRC_MASK 0x00000007 #define V2_CLOCK_SRC_SHIFT 0 +#define V2_CLOCK_TRAVELER_FETCH_DISABLE 0x04000000 +#define V2_CLOCK_TRAVELER_FETCH_ENABLE 0x03000000 #define V2_IN_OUT_CONF_OFFSET 0x0c04 #define V2_OPT_OUT_IFACE_MASK 0x00000c00 @@ -66,6 +68,11 @@ static int v2_set_clock_rate(struct snd_motu *motu, unsigned int rate) data &= ~V2_CLOCK_RATE_MASK; data |= i << V2_CLOCK_RATE_SHIFT; + if (motu->spec == &snd_motu_spec_traveler) { + data &= ~V2_CLOCK_TRAVELER_FETCH_ENABLE; + data |= V2_CLOCK_TRAVELER_FETCH_DISABLE; + } + reg = cpu_to_be32(data); return snd_motu_transaction_write(motu, V2_CLOCK_STATUS_OFFSET, ®, sizeof(reg)); @@ -121,8 +128,31 @@ static int v2_get_clock_source(struct snd_motu *motu, static int v2_switch_fetching_mode(struct snd_motu *motu, bool enable) { - /* V2 protocol doesn't have this feature. */ - return 0; + __be32 reg; + u32 data; + int err = 0; + + if (motu->spec == &snd_motu_spec_traveler) { + err = snd_motu_transaction_read(motu, V2_CLOCK_STATUS_OFFSET, + ®, sizeof(reg)); + if (err < 0) + return err; + data = be32_to_cpu(reg); + + data &= ~(V2_CLOCK_TRAVELER_FETCH_DISABLE | + V2_CLOCK_TRAVELER_FETCH_ENABLE); + + if (enable) + data |= V2_CLOCK_TRAVELER_FETCH_ENABLE; + else + data |= V2_CLOCK_TRAVELER_FETCH_DISABLE; + + reg = cpu_to_be32(data); + err = snd_motu_transaction_write(motu, V2_CLOCK_STATUS_OFFSET, + ®, sizeof(reg)); + } + + return err; } static void calculate_fixed_part(struct snd_motu_packet_format *formats, |
