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-rw-r--r--sound/firewire/bebob/bebob.h2
-rw-r--r--sound/firewire/bebob/bebob_command.c36
-rw-r--r--sound/firewire/bebob/bebob_stream.c83
3 files changed, 89 insertions, 32 deletions
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index d1ad9a8451bc..4e0ed84adbee 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -200,6 +200,8 @@ int avc_bridgeco_get_plug_ch_pos(struct fw_unit *unit,
int avc_bridgeco_get_plug_type(struct fw_unit *unit,
u8 addr[AVC_BRIDGECO_ADDR_BYTES],
enum avc_bridgeco_plug_type *type);
+int avc_bridgeco_get_plug_ch_count(struct fw_unit *unit, u8 addr[AVC_BRIDGECO_ADDR_BYTES],
+ unsigned int *ch_count);
int avc_bridgeco_get_plug_section_type(struct fw_unit *unit,
u8 addr[AVC_BRIDGECO_ADDR_BYTES],
unsigned int id, u8 *type);
diff --git a/sound/firewire/bebob/bebob_command.c b/sound/firewire/bebob/bebob_command.c
index e276ab8f9006..022df09c68ff 100644
--- a/sound/firewire/bebob/bebob_command.c
+++ b/sound/firewire/bebob/bebob_command.c
@@ -143,6 +143,42 @@ end:
return err;
}
+int avc_bridgeco_get_plug_ch_count(struct fw_unit *unit, u8 addr[AVC_BRIDGECO_ADDR_BYTES],
+ unsigned int *ch_count)
+{
+ u8 *buf;
+ int err;
+
+ buf = kzalloc(12, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ // Info type is 'plug type'.
+ avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x02);
+
+ err = fcp_avc_transaction(unit, buf, 12, buf, 12,
+ BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) |
+ BIT(6) | BIT(7) | BIT(9));
+ if (err < 0)
+ ;
+ else if (err < 11)
+ err = -EIO;
+ else if (buf[0] == 0x08) // NOT IMPLEMENTED
+ err = -ENOSYS;
+ else if (buf[0] == 0x0a) // REJECTED
+ err = -EINVAL;
+ else if (buf[0] == 0x0b) // IN TRANSITION
+ err = -EAGAIN;
+ if (err < 0)
+ goto end;
+
+ *ch_count = buf[10];
+ err = 0;
+end:
+ kfree(buf);
+ return err;
+}
+
int avc_bridgeco_get_plug_ch_pos(struct fw_unit *unit,
u8 addr[AVC_BRIDGECO_ADDR_BYTES],
u8 *buf, unsigned int len)
diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c
index d96d2feb15a8..23579a73e038 100644
--- a/sound/firewire/bebob/bebob_stream.c
+++ b/sound/firewire/bebob/bebob_stream.c
@@ -844,6 +844,49 @@ static int fill_stream_formations(struct snd_bebob *bebob, u8 addr[AVC_BRIDGECO_
return err;
}
+static int detect_midi_ports(struct snd_bebob *bebob,
+ const struct snd_bebob_stream_formation *formats,
+ u8 addr[AVC_BRIDGECO_ADDR_BYTES], enum avc_bridgeco_plug_dir plug_dir,
+ unsigned int plug_count, unsigned int *midi_ports)
+{
+ int i;
+ int err = 0;
+
+ *midi_ports = 0;
+
+ /// Detect the number of available MIDI ports when packet has MIDI conformant data channel.
+ for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; ++i) {
+ if (formats[i].midi > 0)
+ break;
+ }
+ if (i >= SND_BEBOB_STRM_FMT_ENTRIES)
+ return 0;
+
+ for (i = 0; i < plug_count; ++i) {
+ enum avc_bridgeco_plug_type plug_type;
+ unsigned int ch_count;
+
+ avc_bridgeco_fill_unit_addr(addr, plug_dir, AVC_BRIDGECO_PLUG_UNIT_EXT, i);
+
+ err = avc_bridgeco_get_plug_type(bebob->unit, addr, &plug_type);
+ if (err < 0) {
+ dev_err(&bebob->unit->device,
+ "fail to get type for external %d plug %d: %d\n",
+ plug_dir, i, err);
+ break;
+ } else if (plug_type != AVC_BRIDGECO_PLUG_TYPE_MIDI) {
+ continue;
+ }
+
+ err = avc_bridgeco_get_plug_ch_count(bebob->unit, addr, &ch_count);
+ if (err < 0)
+ break;
+ *midi_ports += ch_count;
+ }
+
+ return err;
+}
+
static int
seek_msu_sync_input_plug(struct snd_bebob *bebob)
{
@@ -886,8 +929,6 @@ int snd_bebob_stream_discover(struct snd_bebob *bebob)
{
const struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock;
u8 plugs[AVC_PLUG_INFO_BUF_BYTES], addr[AVC_BRIDGECO_ADDR_BYTES];
- enum avc_bridgeco_plug_type type;
- unsigned int i;
int err;
/* the number of plugs for isoc in/out, ext in/out */
@@ -918,37 +959,15 @@ int snd_bebob_stream_discover(struct snd_bebob *bebob)
if (err < 0)
goto end;
- /* count external input plugs for MIDI */
- bebob->midi_input_ports = 0;
- for (i = 0; i < plugs[2]; i++) {
- avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN,
- AVC_BRIDGECO_PLUG_UNIT_EXT, i);
- err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type);
- if (err < 0) {
- dev_err(&bebob->unit->device,
- "fail to get type for external in plug %d: %d\n",
- i, err);
- goto end;
- } else if (type == AVC_BRIDGECO_PLUG_TYPE_MIDI) {
- bebob->midi_input_ports++;
- }
- }
+ err = detect_midi_ports(bebob, bebob->rx_stream_formations, addr, AVC_BRIDGECO_PLUG_DIR_IN,
+ plugs[2], &bebob->midi_input_ports);
+ if (err < 0)
+ goto end;
- /* count external output plugs for MIDI */
- bebob->midi_output_ports = 0;
- for (i = 0; i < plugs[3]; i++) {
- avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_OUT,
- AVC_BRIDGECO_PLUG_UNIT_EXT, i);
- err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type);
- if (err < 0) {
- dev_err(&bebob->unit->device,
- "fail to get type for external out plug %d: %d\n",
- i, err);
- goto end;
- } else if (type == AVC_BRIDGECO_PLUG_TYPE_MIDI) {
- bebob->midi_output_ports++;
- }
- }
+ err = detect_midi_ports(bebob, bebob->tx_stream_formations, addr, AVC_BRIDGECO_PLUG_DIR_OUT,
+ plugs[3], &bebob->midi_output_ports);
+ if (err < 0)
+ goto end;
/* for check source of clock later */
if (!clk_spec)
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-26 00:50:59 +0300