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Diffstat (limited to 'sound/firewire/motu/motu-protocol-v2.c')
-rw-r--r--sound/firewire/motu/motu-protocol-v2.c64
1 files changed, 50 insertions, 14 deletions
diff --git a/sound/firewire/motu/motu-protocol-v2.c b/sound/firewire/motu/motu-protocol-v2.c
index 525b746330be..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, &reg,
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,
+ &reg, 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,
+ &reg, sizeof(reg));
+ }
+
+ return err;
}
static void calculate_fixed_part(struct snd_motu_packet_format *formats,
@@ -149,11 +179,20 @@ static void calculate_fixed_part(struct snd_motu_packet_format *formats,
pcm_chunks[1] += 2;
}
} else {
- /*
- * Packets to v2 units transfer main-out-1/2 and phone-out-1/2.
- */
- pcm_chunks[0] += 4;
- pcm_chunks[1] += 4;
+ if (flags & SND_MOTU_SPEC_RX_SEPARETED_MAIN) {
+ pcm_chunks[0] += 2;
+ pcm_chunks[1] += 2;
+ }
+
+ // Packets to v2 units include 2 chunks for phone 1/2, except
+ // for 176.4/192.0 kHz.
+ pcm_chunks[0] += 2;
+ pcm_chunks[1] += 2;
+ }
+
+ if (flags & SND_MOTU_SPEC_HAS_AESEBU_IFACE) {
+ pcm_chunks[0] += 2;
+ pcm_chunks[1] += 2;
}
/*
@@ -164,19 +203,16 @@ static void calculate_fixed_part(struct snd_motu_packet_format *formats,
pcm_chunks[0] += 2;
pcm_chunks[1] += 2;
- /* This part should be multiples of 4. */
- formats->fixed_part_pcm_chunks[0] = round_up(2 + pcm_chunks[0], 4) - 2;
- formats->fixed_part_pcm_chunks[1] = round_up(2 + pcm_chunks[1], 4) - 2;
- if (flags & SND_MOTU_SPEC_SUPPORT_CLOCK_X4)
- formats->fixed_part_pcm_chunks[2] =
- round_up(2 + pcm_chunks[2], 4) - 2;
+ formats->fixed_part_pcm_chunks[0] = pcm_chunks[0];
+ formats->fixed_part_pcm_chunks[1] = pcm_chunks[1];
+ formats->fixed_part_pcm_chunks[2] = pcm_chunks[2];
}
static void calculate_differed_part(struct snd_motu_packet_format *formats,
enum snd_motu_spec_flags flags,
u32 data, u32 mask, u32 shift)
{
- unsigned char pcm_chunks[3] = {0, 0};
+ unsigned char pcm_chunks[2] = {0, 0};
/*
* When optical interfaces are configured for S/PDIF (TOSLINK),