From fbbebd2c40795e87f1280ca4d963f7cbe1c83168 Mon Sep 17 00:00:00 2001 From: Takashi Sakamoto Date: Fri, 25 Apr 2014 22:45:19 +0900 Subject: ALSA: bebob: Add PCM interface This commit adds a functionality to capture/playback PCM samples. When AMDTP stream is already running for PCM or the source of clock is not internal, available sampling rate is limited at current one. Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai --- sound/firewire/bebob/bebob_pcm.c | 369 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 369 insertions(+) create mode 100644 sound/firewire/bebob/bebob_pcm.c (limited to 'sound/firewire/bebob/bebob_pcm.c') diff --git a/sound/firewire/bebob/bebob_pcm.c b/sound/firewire/bebob/bebob_pcm.c new file mode 100644 index 000000000000..7474309dad87 --- /dev/null +++ b/sound/firewire/bebob/bebob_pcm.c @@ -0,0 +1,369 @@ +/* + * bebob_pcm.c - a part of driver for BeBoB based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "./bebob.h" + +static int +hw_rule_rate(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) +{ + struct snd_bebob_stream_formation *formations = rule->private; + struct snd_interval *r = + hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + const struct snd_interval *c = + hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS); + struct snd_interval t = { + .min = UINT_MAX, .max = 0, .integer = 1 + }; + unsigned int i; + + for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) { + /* entry is invalid */ + if (formations[i].pcm == 0) + continue; + + if (!snd_interval_test(c, formations[i].pcm)) + continue; + + t.min = min(t.min, snd_bebob_rate_table[i]); + t.max = max(t.max, snd_bebob_rate_table[i]); + + } + return snd_interval_refine(r, &t); +} + +static int +hw_rule_channels(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) +{ + struct snd_bebob_stream_formation *formations = rule->private; + struct snd_interval *c = + hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); + const struct snd_interval *r = + hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_RATE); + struct snd_interval t = { + .min = UINT_MAX, .max = 0, .integer = 1 + }; + + unsigned int i; + + for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) { + /* entry is invalid */ + if (formations[i].pcm == 0) + continue; + + if (!snd_interval_test(r, snd_bebob_rate_table[i])) + continue; + + t.min = min(t.min, formations[i].pcm); + t.max = max(t.max, formations[i].pcm); + } + + return snd_interval_refine(c, &t); +} + +static void +limit_channels_and_rates(struct snd_pcm_hardware *hw, + struct snd_bebob_stream_formation *formations) +{ + unsigned int i; + + hw->channels_min = UINT_MAX; + hw->channels_max = 0; + + hw->rate_min = UINT_MAX; + hw->rate_max = 0; + hw->rates = 0; + + for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) { + /* entry has no PCM channels */ + if (formations[i].pcm == 0) + continue; + + hw->channels_min = min(hw->channels_min, formations[i].pcm); + hw->channels_max = max(hw->channels_max, formations[i].pcm); + + hw->rate_min = min(hw->rate_min, snd_bebob_rate_table[i]); + hw->rate_max = max(hw->rate_max, snd_bebob_rate_table[i]); + hw->rates |= snd_pcm_rate_to_rate_bit(snd_bebob_rate_table[i]); + } +} + +static void +limit_period_and_buffer(struct snd_pcm_hardware *hw) +{ + hw->periods_min = 2; /* SNDRV_PCM_INFO_BATCH */ + hw->periods_max = UINT_MAX; + + hw->period_bytes_min = 4 * hw->channels_max; /* bytes for a frame */ + + /* Just to prevent from allocating much pages. */ + hw->period_bytes_max = hw->period_bytes_min * 2048; + hw->buffer_bytes_max = hw->period_bytes_max * hw->periods_min; +} + +static int +pcm_init_hw_params(struct snd_bebob *bebob, + struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct amdtp_stream *s; + struct snd_bebob_stream_formation *formations; + int err; + + runtime->hw.info = SNDRV_PCM_INFO_BATCH | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_JOINT_DUPLEX | + SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID; + + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { + runtime->hw.formats = AMDTP_IN_PCM_FORMAT_BITS; + s = &bebob->tx_stream; + formations = bebob->tx_stream_formations; + } else { + runtime->hw.formats = AMDTP_OUT_PCM_FORMAT_BITS; + s = &bebob->rx_stream; + formations = bebob->rx_stream_formations; + } + + limit_channels_and_rates(&runtime->hw, formations); + limit_period_and_buffer(&runtime->hw); + + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, + hw_rule_channels, formations, + SNDRV_PCM_HW_PARAM_RATE, -1); + if (err < 0) + goto end; + + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + hw_rule_rate, formations, + SNDRV_PCM_HW_PARAM_CHANNELS, -1); + if (err < 0) + goto end; + + err = amdtp_stream_add_pcm_hw_constraints(s, runtime); +end: + return err; +} + +static int +pcm_open(struct snd_pcm_substream *substream) +{ + struct snd_bebob *bebob = substream->private_data; + unsigned int sampling_rate; + bool internal; + int err; + + err = pcm_init_hw_params(bebob, substream); + if (err < 0) + goto end; + + err = snd_bebob_stream_check_internal_clock(bebob, &internal); + if (err < 0) + goto end; + + /* + * When source of clock is internal or any PCM stream are running, + * the available sampling rate is limited at current sampling rate. + */ + if (!internal || + amdtp_stream_pcm_running(&bebob->tx_stream) || + amdtp_stream_pcm_running(&bebob->rx_stream)) { + err = snd_bebob_stream_get_rate(bebob, &sampling_rate); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to get sampling rate: %d\n", err); + goto end; + } + + substream->runtime->hw.rate_min = sampling_rate; + substream->runtime->hw.rate_max = sampling_rate; + } + + snd_pcm_set_sync(substream); + +end: + return err; +} + +static int +pcm_close(struct snd_pcm_substream *substream) +{ + return 0; +} + +static int +pcm_capture_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct snd_bebob *bebob = substream->private_data; + + if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) + atomic_inc(&bebob->capture_substreams); + amdtp_stream_set_pcm_format(&bebob->tx_stream, + params_format(hw_params)); + return snd_pcm_lib_alloc_vmalloc_buffer(substream, + params_buffer_bytes(hw_params)); +} +static int +pcm_playback_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct snd_bebob *bebob = substream->private_data; + + if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) + atomic_inc(&bebob->playback_substreams); + amdtp_stream_set_pcm_format(&bebob->rx_stream, + params_format(hw_params)); + return snd_pcm_lib_alloc_vmalloc_buffer(substream, + params_buffer_bytes(hw_params)); +} + +static int +pcm_capture_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_bebob *bebob = substream->private_data; + + if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) + atomic_dec(&bebob->capture_substreams); + + snd_bebob_stream_stop_duplex(bebob); + + return snd_pcm_lib_free_vmalloc_buffer(substream); +} +static int +pcm_playback_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_bebob *bebob = substream->private_data; + + if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) + atomic_dec(&bebob->playback_substreams); + + snd_bebob_stream_stop_duplex(bebob); + + return snd_pcm_lib_free_vmalloc_buffer(substream); +} + +static int +pcm_capture_prepare(struct snd_pcm_substream *substream) +{ + struct snd_bebob *bebob = substream->private_data; + struct snd_pcm_runtime *runtime = substream->runtime; + int err; + + err = snd_bebob_stream_start_duplex(bebob, runtime->rate); + if (err >= 0) + amdtp_stream_pcm_prepare(&bebob->tx_stream); + + return err; +} +static int +pcm_playback_prepare(struct snd_pcm_substream *substream) +{ + struct snd_bebob *bebob = substream->private_data; + struct snd_pcm_runtime *runtime = substream->runtime; + int err; + + err = snd_bebob_stream_start_duplex(bebob, runtime->rate); + if (err >= 0) + amdtp_stream_pcm_prepare(&bebob->rx_stream); + + return err; +} + +static int +pcm_capture_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_bebob *bebob = substream->private_data; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + amdtp_stream_pcm_trigger(&bebob->tx_stream, substream); + break; + case SNDRV_PCM_TRIGGER_STOP: + amdtp_stream_pcm_trigger(&bebob->tx_stream, NULL); + break; + default: + return -EINVAL; + } + + return 0; +} +static int +pcm_playback_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_bebob *bebob = substream->private_data; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + amdtp_stream_pcm_trigger(&bebob->rx_stream, substream); + break; + case SNDRV_PCM_TRIGGER_STOP: + amdtp_stream_pcm_trigger(&bebob->rx_stream, NULL); + break; + default: + return -EINVAL; + } + + return 0; +} + +static snd_pcm_uframes_t +pcm_capture_pointer(struct snd_pcm_substream *sbstrm) +{ + struct snd_bebob *bebob = sbstrm->private_data; + return amdtp_stream_pcm_pointer(&bebob->tx_stream); +} +static snd_pcm_uframes_t +pcm_playback_pointer(struct snd_pcm_substream *sbstrm) +{ + struct snd_bebob *bebob = sbstrm->private_data; + return amdtp_stream_pcm_pointer(&bebob->rx_stream); +} + +static const struct snd_pcm_ops pcm_capture_ops = { + .open = pcm_open, + .close = pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = pcm_capture_hw_params, + .hw_free = pcm_capture_hw_free, + .prepare = pcm_capture_prepare, + .trigger = pcm_capture_trigger, + .pointer = pcm_capture_pointer, + .page = snd_pcm_lib_get_vmalloc_page, +}; +static const struct snd_pcm_ops pcm_playback_ops = { + .open = pcm_open, + .close = pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = pcm_playback_hw_params, + .hw_free = pcm_playback_hw_free, + .prepare = pcm_playback_prepare, + .trigger = pcm_playback_trigger, + .pointer = pcm_playback_pointer, + .page = snd_pcm_lib_get_vmalloc_page, + .mmap = snd_pcm_lib_mmap_vmalloc, +}; + +int snd_bebob_create_pcm_devices(struct snd_bebob *bebob) +{ + struct snd_pcm *pcm; + int err; + + err = snd_pcm_new(bebob->card, bebob->card->driver, 0, 1, 1, &pcm); + if (err < 0) + goto end; + + pcm->private_data = bebob; + snprintf(pcm->name, sizeof(pcm->name), + "%s PCM", bebob->card->shortname); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcm_playback_ops); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcm_capture_ops); +end: + return err; +} -- cgit v1.2.3 From 618eabeae711c56d376daa147c6a684116d68705 Mon Sep 17 00:00:00 2001 From: Takashi Sakamoto Date: Fri, 25 Apr 2014 22:45:20 +0900 Subject: ALSA: bebob: Add hwdep interface This interface is designed for mixer/control application. By using hwdep interface, the application can get information about firewire node, can lock/unlock kernel streaming and can get notification at starting/stopping kernel streaming. Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai --- include/uapi/sound/asound.h | 3 +- include/uapi/sound/firewire.h | 1 + sound/firewire/Kconfig | 1 + sound/firewire/bebob/Makefile | 2 +- sound/firewire/bebob/bebob.c | 5 + sound/firewire/bebob/bebob.h | 13 +++ sound/firewire/bebob/bebob_hwdep.c | 199 ++++++++++++++++++++++++++++++++++++ sound/firewire/bebob/bebob_midi.c | 24 ++++- sound/firewire/bebob/bebob_pcm.c | 16 ++- sound/firewire/bebob/bebob_stream.c | 39 +++++++ 10 files changed, 295 insertions(+), 8 deletions(-) create mode 100644 sound/firewire/bebob/bebob_hwdep.c (limited to 'sound/firewire/bebob/bebob_pcm.c') diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h index 5dfbfdfd2d12..224948342f14 100644 --- a/include/uapi/sound/asound.h +++ b/include/uapi/sound/asound.h @@ -95,9 +95,10 @@ enum { SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */ SNDRV_HWDEP_IFACE_FW_DICE, /* TC DICE FireWire device */ SNDRV_HWDEP_IFACE_FW_FIREWORKS, /* Echo Audio Fireworks based device */ + SNDRV_HWDEP_IFACE_FW_BEBOB, /* BridgeCo BeBoB based device */ /* Don't forget to change the following: */ - SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_FIREWORKS + SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_BEBOB }; struct snd_hwdep_info { diff --git a/include/uapi/sound/firewire.h b/include/uapi/sound/firewire.h index bfc0e23e47a2..af4bd136c75d 100644 --- a/include/uapi/sound/firewire.h +++ b/include/uapi/sound/firewire.h @@ -54,6 +54,7 @@ union snd_firewire_event { #define SNDRV_FIREWIRE_TYPE_DICE 1 #define SNDRV_FIREWIRE_TYPE_FIREWORKS 2 +#define SNDRV_FIREWIRE_TYPE_BEBOB 3 /* AV/C, RME, MOTU, ... */ struct snd_firewire_get_info { diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig index d55fd5fd16ca..21750649e14e 100644 --- a/sound/firewire/Kconfig +++ b/sound/firewire/Kconfig @@ -84,6 +84,7 @@ config SND_BEBOB select SND_FIREWIRE_LIB select SND_RAWMIDI select SND_PCM + select SND_HWDEP help Say Y here to include support for FireWire devices based on BridgeCo DM1000/DM1100/DM1500 with BeBoB firmware: diff --git a/sound/firewire/bebob/Makefile b/sound/firewire/bebob/Makefile index 533718a5c1e5..78087772a022 100644 --- a/sound/firewire/bebob/Makefile +++ b/sound/firewire/bebob/Makefile @@ -1,4 +1,4 @@ snd-bebob-objs := bebob_command.o bebob_stream.o bebob_proc.o bebob_midi.o \ - bebob_pcm.o \ + bebob_pcm.o bebob_hwdep.o \ bebob.o obj-m += snd-bebob.o diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c index dbd12c360046..b7d70c2e4e87 100644 --- a/sound/firewire/bebob/bebob.c +++ b/sound/firewire/bebob/bebob.c @@ -153,6 +153,7 @@ bebob_probe(struct fw_unit *unit, bebob->unit = unit; mutex_init(&bebob->mutex); spin_lock_init(&bebob->lock); + init_waitqueue_head(&bebob->hwdep_wait); err = name_device(bebob, entry->vendor_id); if (err < 0) @@ -175,6 +176,10 @@ bebob_probe(struct fw_unit *unit, if (err < 0) goto error; + err = snd_bebob_create_hwdep_device(bebob); + if (err < 0) + goto error; + err = snd_bebob_stream_init_duplex(bebob); if (err < 0) goto error; diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h index b41bb913bac5..e8a5e447ff17 100644 --- a/sound/firewire/bebob/bebob.h +++ b/sound/firewire/bebob/bebob.h @@ -24,6 +24,8 @@ #include #include #include +#include +#include #include "../lib.h" #include "../fcp.h" @@ -75,6 +77,11 @@ struct snd_bebob { rx_stream_formations[SND_BEBOB_STRM_FMT_ENTRIES]; int sync_input_plug; + + /* for uapi */ + int dev_lock_count; + bool dev_lock_changed; + wait_queue_head_t hwdep_wait; }; static inline int @@ -175,12 +182,18 @@ void snd_bebob_stream_stop_duplex(struct snd_bebob *bebob); void snd_bebob_stream_update_duplex(struct snd_bebob *bebob); void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob); +void snd_bebob_stream_lock_changed(struct snd_bebob *bebob); +int snd_bebob_stream_lock_try(struct snd_bebob *bebob); +void snd_bebob_stream_lock_release(struct snd_bebob *bebob); + void snd_bebob_proc_init(struct snd_bebob *bebob); int snd_bebob_create_midi_devices(struct snd_bebob *bebob); int snd_bebob_create_pcm_devices(struct snd_bebob *bebob); +int snd_bebob_create_hwdep_device(struct snd_bebob *bebob); + #define SND_BEBOB_DEV_ENTRY(vendor, model) \ { \ .match_flags = IEEE1394_MATCH_VENDOR_ID | \ diff --git a/sound/firewire/bebob/bebob_hwdep.c b/sound/firewire/bebob/bebob_hwdep.c new file mode 100644 index 000000000000..ce731f4d8b4f --- /dev/null +++ b/sound/firewire/bebob/bebob_hwdep.c @@ -0,0 +1,199 @@ +/* + * bebob_hwdep.c - a part of driver for BeBoB based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +/* + * This codes give three functionality. + * + * 1.get firewire node infomation + * 2.get notification about starting/stopping stream + * 3.lock/unlock stream + */ + +#include "bebob.h" + +static long +hwdep_read(struct snd_hwdep *hwdep, char __user *buf, long count, + loff_t *offset) +{ + struct snd_bebob *bebob = hwdep->private_data; + DEFINE_WAIT(wait); + union snd_firewire_event event; + + spin_lock_irq(&bebob->lock); + + while (!bebob->dev_lock_changed) { + prepare_to_wait(&bebob->hwdep_wait, &wait, TASK_INTERRUPTIBLE); + spin_unlock_irq(&bebob->lock); + schedule(); + finish_wait(&bebob->hwdep_wait, &wait); + if (signal_pending(current)) + return -ERESTARTSYS; + spin_lock_irq(&bebob->lock); + } + + memset(&event, 0, sizeof(event)); + if (bebob->dev_lock_changed) { + event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS; + event.lock_status.status = (bebob->dev_lock_count > 0); + bebob->dev_lock_changed = false; + + count = min_t(long, count, sizeof(event.lock_status)); + } + + spin_unlock_irq(&bebob->lock); + + if (copy_to_user(buf, &event, count)) + return -EFAULT; + + return count; +} + +static unsigned int +hwdep_poll(struct snd_hwdep *hwdep, struct file *file, poll_table *wait) +{ + struct snd_bebob *bebob = hwdep->private_data; + unsigned int events; + + poll_wait(file, &bebob->hwdep_wait, wait); + + spin_lock_irq(&bebob->lock); + if (bebob->dev_lock_changed) + events = POLLIN | POLLRDNORM; + else + events = 0; + spin_unlock_irq(&bebob->lock); + + return events; +} + +static int +hwdep_get_info(struct snd_bebob *bebob, void __user *arg) +{ + struct fw_device *dev = fw_parent_device(bebob->unit); + struct snd_firewire_get_info info; + + memset(&info, 0, sizeof(info)); + info.type = SNDRV_FIREWIRE_TYPE_BEBOB; + info.card = dev->card->index; + *(__be32 *)&info.guid[0] = cpu_to_be32(dev->config_rom[3]); + *(__be32 *)&info.guid[4] = cpu_to_be32(dev->config_rom[4]); + strlcpy(info.device_name, dev_name(&dev->device), + sizeof(info.device_name)); + + if (copy_to_user(arg, &info, sizeof(info))) + return -EFAULT; + + return 0; +} + +static int +hwdep_lock(struct snd_bebob *bebob) +{ + int err; + + spin_lock_irq(&bebob->lock); + + if (bebob->dev_lock_count == 0) { + bebob->dev_lock_count = -1; + err = 0; + } else { + err = -EBUSY; + } + + spin_unlock_irq(&bebob->lock); + + return err; +} + +static int +hwdep_unlock(struct snd_bebob *bebob) +{ + int err; + + spin_lock_irq(&bebob->lock); + + if (bebob->dev_lock_count == -1) { + bebob->dev_lock_count = 0; + err = 0; + } else { + err = -EBADFD; + } + + spin_unlock_irq(&bebob->lock); + + return err; +} + +static int +hwdep_release(struct snd_hwdep *hwdep, struct file *file) +{ + struct snd_bebob *bebob = hwdep->private_data; + + spin_lock_irq(&bebob->lock); + if (bebob->dev_lock_count == -1) + bebob->dev_lock_count = 0; + spin_unlock_irq(&bebob->lock); + + return 0; +} + +static int +hwdep_ioctl(struct snd_hwdep *hwdep, struct file *file, + unsigned int cmd, unsigned long arg) +{ + struct snd_bebob *bebob = hwdep->private_data; + + switch (cmd) { + case SNDRV_FIREWIRE_IOCTL_GET_INFO: + return hwdep_get_info(bebob, (void __user *)arg); + case SNDRV_FIREWIRE_IOCTL_LOCK: + return hwdep_lock(bebob); + case SNDRV_FIREWIRE_IOCTL_UNLOCK: + return hwdep_unlock(bebob); + default: + return -ENOIOCTLCMD; + } +} + +#ifdef CONFIG_COMPAT +static int +hwdep_compat_ioctl(struct snd_hwdep *hwdep, struct file *file, + unsigned int cmd, unsigned long arg) +{ + return hwdep_ioctl(hwdep, file, cmd, + (unsigned long)compat_ptr(arg)); +} +#else +#define hwdep_compat_ioctl NULL +#endif + +static const struct snd_hwdep_ops hwdep_ops = { + .read = hwdep_read, + .release = hwdep_release, + .poll = hwdep_poll, + .ioctl = hwdep_ioctl, + .ioctl_compat = hwdep_compat_ioctl, +}; + +int snd_bebob_create_hwdep_device(struct snd_bebob *bebob) +{ + struct snd_hwdep *hwdep; + int err; + + err = snd_hwdep_new(bebob->card, "BeBoB", 0, &hwdep); + if (err < 0) + goto end; + strcpy(hwdep->name, "BeBoB"); + hwdep->iface = SNDRV_HWDEP_IFACE_FW_BEBOB; + hwdep->ops = hwdep_ops; + hwdep->private_data = bebob; + hwdep->exclusive = true; +end: + return err; +} + diff --git a/sound/firewire/bebob/bebob_midi.c b/sound/firewire/bebob/bebob_midi.c index 120a61b90c59..c04cea2c19a6 100644 --- a/sound/firewire/bebob/bebob_midi.c +++ b/sound/firewire/bebob/bebob_midi.c @@ -11,17 +11,35 @@ static int midi_capture_open(struct snd_rawmidi_substream *substream) { struct snd_bebob *bebob = substream->rmidi->private_data; + int err; + + err = snd_bebob_stream_lock_try(bebob); + if (err < 0) + goto end; atomic_inc(&bebob->capture_substreams); - return snd_bebob_stream_start_duplex(bebob, 0); + err = snd_bebob_stream_start_duplex(bebob, 0); + if (err < 0) + snd_bebob_stream_lock_release(bebob); +end: + return err; } static int midi_playback_open(struct snd_rawmidi_substream *substream) { struct snd_bebob *bebob = substream->rmidi->private_data; + int err; + + err = snd_bebob_stream_lock_try(bebob); + if (err < 0) + goto end; atomic_inc(&bebob->playback_substreams); - return snd_bebob_stream_start_duplex(bebob, 0); + err = snd_bebob_stream_start_duplex(bebob, 0); + if (err < 0) + snd_bebob_stream_lock_release(bebob); +end: + return err; } static int midi_capture_close(struct snd_rawmidi_substream *substream) @@ -31,6 +49,7 @@ static int midi_capture_close(struct snd_rawmidi_substream *substream) atomic_dec(&bebob->capture_substreams); snd_bebob_stream_stop_duplex(bebob); + snd_bebob_stream_lock_release(bebob); return 0; } @@ -41,6 +60,7 @@ static int midi_playback_close(struct snd_rawmidi_substream *substream) atomic_dec(&bebob->playback_substreams); snd_bebob_stream_stop_duplex(bebob); + snd_bebob_stream_lock_release(bebob); return 0; } diff --git a/sound/firewire/bebob/bebob_pcm.c b/sound/firewire/bebob/bebob_pcm.c index 7474309dad87..9d868171db4e 100644 --- a/sound/firewire/bebob/bebob_pcm.c +++ b/sound/firewire/bebob/bebob_pcm.c @@ -159,13 +159,17 @@ pcm_open(struct snd_pcm_substream *substream) bool internal; int err; - err = pcm_init_hw_params(bebob, substream); + err = snd_bebob_stream_lock_try(bebob); if (err < 0) goto end; + err = pcm_init_hw_params(bebob, substream); + if (err < 0) + goto err_locked; + err = snd_bebob_stream_check_internal_clock(bebob, &internal); if (err < 0) - goto end; + goto err_locked; /* * When source of clock is internal or any PCM stream are running, @@ -178,7 +182,7 @@ pcm_open(struct snd_pcm_substream *substream) if (err < 0) { dev_err(&bebob->unit->device, "fail to get sampling rate: %d\n", err); - goto end; + goto err_locked; } substream->runtime->hw.rate_min = sampling_rate; @@ -186,14 +190,18 @@ pcm_open(struct snd_pcm_substream *substream) } snd_pcm_set_sync(substream); - end: return err; +err_locked: + snd_bebob_stream_lock_release(bebob); + return err; } static int pcm_close(struct snd_pcm_substream *substream) { + struct snd_bebob *bebob = substream->private_data; + snd_bebob_stream_lock_release(bebob); return 0; } diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c index 46b056c8f2a8..85b4fd661787 100644 --- a/sound/firewire/bebob/bebob_stream.c +++ b/sound/firewire/bebob/bebob_stream.c @@ -912,3 +912,42 @@ int snd_bebob_stream_discover(struct snd_bebob *bebob) end: return err; } + +void snd_bebob_stream_lock_changed(struct snd_bebob *bebob) +{ + bebob->dev_lock_changed = true; + wake_up(&bebob->hwdep_wait); +} + +int snd_bebob_stream_lock_try(struct snd_bebob *bebob) +{ + int err; + + spin_lock_irq(&bebob->lock); + + /* user land lock this */ + if (bebob->dev_lock_count < 0) { + err = -EBUSY; + goto end; + } + + /* this is the first time */ + if (bebob->dev_lock_count++ == 0) + snd_bebob_stream_lock_changed(bebob); + err = 0; +end: + spin_unlock_irq(&bebob->lock); + return err; +} + +void snd_bebob_stream_lock_release(struct snd_bebob *bebob) +{ + spin_lock_irq(&bebob->lock); + + if (WARN_ON(bebob->dev_lock_count <= 0)) + goto end; + if (--bebob->dev_lock_count == 0) + snd_bebob_stream_lock_changed(bebob); +end: + spin_unlock_irq(&bebob->lock); +} -- cgit v1.2.3 From 1fc9522a084f36d042298ef15893cf07d66a54bc Mon Sep 17 00:00:00 2001 From: Takashi Sakamoto Date: Fri, 25 Apr 2014 22:45:21 +0900 Subject: ALSA: bebob: Prepare for device specific operations This commit is for some devices which have its own operations or quirks. Many functionality should be implemented in user land. Then this commit adds functionality related to stream such as sampling frequency or clock source. For help to debug, this commit adds the functionality to get metering information if it's available. To help these functionalities, this commit adds some AV/C commands defined in 'AV/C Audio Subunit Specification (1394TA). Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai --- sound/firewire/bebob/Makefile | 3 +- sound/firewire/bebob/bebob.c | 72 ++++++++++++++++++++------------- sound/firewire/bebob/bebob.h | 33 +++++++++++++++- sound/firewire/bebob/bebob_command.c | 77 ++++++++++++++++++++++++++++++++++++ sound/firewire/bebob/bebob_pcm.c | 3 +- sound/firewire/bebob/bebob_proc.c | 57 +++++++++++++++++++++++--- sound/firewire/bebob/bebob_stream.c | 27 ++++++++++--- 7 files changed, 230 insertions(+), 42 deletions(-) (limited to 'sound/firewire/bebob/bebob_pcm.c') diff --git a/sound/firewire/bebob/Makefile b/sound/firewire/bebob/Makefile index 78087772a022..e4b08e38dd23 100644 --- a/sound/firewire/bebob/Makefile +++ b/sound/firewire/bebob/Makefile @@ -1,4 +1,3 @@ snd-bebob-objs := bebob_command.o bebob_stream.o bebob_proc.o bebob_midi.o \ - bebob_pcm.o bebob_hwdep.o \ - bebob.o + bebob_pcm.o bebob_hwdep.o bebob.o obj-m += snd-bebob.o diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c index b7d70c2e4e87..3d7909036a3c 100644 --- a/sound/firewire/bebob/bebob.c +++ b/sound/firewire/bebob/bebob.c @@ -126,6 +126,7 @@ bebob_probe(struct fw_unit *unit, { struct snd_card *card; struct snd_bebob *bebob; + const struct snd_bebob_spec *spec; unsigned int card_index; int err; @@ -140,6 +141,12 @@ bebob_probe(struct fw_unit *unit, goto end; } + spec = (const struct snd_bebob_spec *)entry->driver_data; + if (spec == NULL) { + err = -ENOSYS; + goto end; + } + err = snd_card_new(&unit->device, index[card_index], id[card_index], THIS_MODULE, sizeof(struct snd_bebob), &card); if (err < 0) @@ -151,6 +158,7 @@ bebob_probe(struct fw_unit *unit, bebob->card = card; bebob->unit = unit; + bebob->spec = spec; mutex_init(&bebob->mutex); spin_lock_init(&bebob->lock); init_waitqueue_head(&bebob->hwdep_wait); @@ -216,62 +224,72 @@ static void bebob_remove(struct fw_unit *unit) snd_card_free_when_closed(bebob->card); } +struct snd_bebob_rate_spec normal_rate_spec = { + .get = &snd_bebob_stream_get_rate, + .set = &snd_bebob_stream_set_rate +}; +static const struct snd_bebob_spec spec_normal = { + .clock = NULL, + .rate = &normal_rate_spec, + .meter = NULL +}; + static const struct ieee1394_device_id bebob_id_table[] = { /* Edirol, FA-66 */ - SND_BEBOB_DEV_ENTRY(VEN_EDIROL, 0x00010049), + SND_BEBOB_DEV_ENTRY(VEN_EDIROL, 0x00010049, &spec_normal), /* Edirol, FA-101 */ - SND_BEBOB_DEV_ENTRY(VEN_EDIROL, 0x00010048), + SND_BEBOB_DEV_ENTRY(VEN_EDIROL, 0x00010048, &spec_normal), /* Presonus, FIREBOX */ - SND_BEBOB_DEV_ENTRY(VEN_PRESONUS, 0x00010000), + SND_BEBOB_DEV_ENTRY(VEN_PRESONUS, 0x00010000, &spec_normal), /* PreSonus, FIREPOD/FP10 */ - SND_BEBOB_DEV_ENTRY(VEN_PRESONUS, 0x00010066), + SND_BEBOB_DEV_ENTRY(VEN_PRESONUS, 0x00010066, &spec_normal), /* PreSonus, Inspire1394 */ - SND_BEBOB_DEV_ENTRY(VEN_PRESONUS, 0x00010001), + SND_BEBOB_DEV_ENTRY(VEN_PRESONUS, 0x00010001, &spec_normal), /* BridgeCo, RDAudio1 */ - SND_BEBOB_DEV_ENTRY(VEN_BRIDGECO, 0x00010048), + SND_BEBOB_DEV_ENTRY(VEN_BRIDGECO, 0x00010048, &spec_normal), /* BridgeCo, Audio5 */ - SND_BEBOB_DEV_ENTRY(VEN_BRIDGECO, 0x00010049), + SND_BEBOB_DEV_ENTRY(VEN_BRIDGECO, 0x00010049, &spec_normal), /* Mackie, Onyx 1220/1620/1640 (Firewire I/O Card) */ - SND_BEBOB_DEV_ENTRY(VEN_MACKIE, 0x00010065), + SND_BEBOB_DEV_ENTRY(VEN_MACKIE, 0x00010065, &spec_normal), /* Mackie, d.2 (Firewire Option) */ - SND_BEBOB_DEV_ENTRY(VEN_MACKIE, 0x00010067), + SND_BEBOB_DEV_ENTRY(VEN_MACKIE, 0x00010067, &spec_normal), /* Stanton, ScratchAmp */ - SND_BEBOB_DEV_ENTRY(VEN_STANTON, 0x00000001), + SND_BEBOB_DEV_ENTRY(VEN_STANTON, 0x00000001, &spec_normal), /* Tascam, IF-FW DM */ - SND_BEBOB_DEV_ENTRY(VEN_TASCAM, 0x00010067), + SND_BEBOB_DEV_ENTRY(VEN_TASCAM, 0x00010067, &spec_normal), /* Behringer, XENIX UFX 1204 */ - SND_BEBOB_DEV_ENTRY(VEN_BEHRINGER, 0x00001204), + SND_BEBOB_DEV_ENTRY(VEN_BEHRINGER, 0x00001204, &spec_normal), /* Behringer, XENIX UFX 1604 */ - SND_BEBOB_DEV_ENTRY(VEN_BEHRINGER, 0x00001604), + SND_BEBOB_DEV_ENTRY(VEN_BEHRINGER, 0x00001604, &spec_normal), /* Behringer, Digital Mixer X32 series (X-UF Card) */ - SND_BEBOB_DEV_ENTRY(VEN_BEHRINGER, 0x00000006), + SND_BEBOB_DEV_ENTRY(VEN_BEHRINGER, 0x00000006, &spec_normal), /* Apogee Electronics, Rosetta 200/400 (X-FireWire card) */ /* Apogee Electronics, DA/AD/DD-16X (X-FireWire card) */ - SND_BEBOB_DEV_ENTRY(VEN_APOGEE, 0x00010048), + SND_BEBOB_DEV_ENTRY(VEN_APOGEE, 0x00010048, &spec_normal), /* Apogee Electronics, Ensemble */ - SND_BEBOB_DEV_ENTRY(VEN_APOGEE, 0x00001eee), + SND_BEBOB_DEV_ENTRY(VEN_APOGEE, 0x00001eee, &spec_normal), /* ESI, Quatafire610 */ - SND_BEBOB_DEV_ENTRY(VEN_ESI, 0x00010064), + SND_BEBOB_DEV_ENTRY(VEN_ESI, 0x00010064, &spec_normal), /* AcousticReality, eARMasterOne */ - SND_BEBOB_DEV_ENTRY(VEN_ACOUSTIC, 0x00000002), + SND_BEBOB_DEV_ENTRY(VEN_ACOUSTIC, 0x00000002, &spec_normal), /* CME, MatrixKFW */ - SND_BEBOB_DEV_ENTRY(VEN_CME, 0x00030000), + SND_BEBOB_DEV_ENTRY(VEN_CME, 0x00030000, &spec_normal), /* Phonic, Helix Board 12 MkII */ - SND_BEBOB_DEV_ENTRY(VEN_PHONIC, 0x00050000), + SND_BEBOB_DEV_ENTRY(VEN_PHONIC, 0x00050000, &spec_normal), /* Phonic, Helix Board 18 MkII */ - SND_BEBOB_DEV_ENTRY(VEN_PHONIC, 0x00060000), + SND_BEBOB_DEV_ENTRY(VEN_PHONIC, 0x00060000, &spec_normal), /* Phonic, Helix Board 24 MkII */ - SND_BEBOB_DEV_ENTRY(VEN_PHONIC, 0x00070000), + SND_BEBOB_DEV_ENTRY(VEN_PHONIC, 0x00070000, &spec_normal), /* Phonic, Helix Board 12 Universal/18 Universal/24 Universal */ - SND_BEBOB_DEV_ENTRY(VEN_PHONIC, 0x00000000), + SND_BEBOB_DEV_ENTRY(VEN_PHONIC, 0x00000000, &spec_normal), /* Lynx, Aurora 8/16 (LT-FW) */ - SND_BEBOB_DEV_ENTRY(VEN_LYNX, 0x00000001), + SND_BEBOB_DEV_ENTRY(VEN_LYNX, 0x00000001, &spec_normal), /* ICON, FireXon */ - SND_BEBOB_DEV_ENTRY(VEN_ICON, 0x00000001), + SND_BEBOB_DEV_ENTRY(VEN_ICON, 0x00000001, &spec_normal), /* PrismSound, Orpheus */ - SND_BEBOB_DEV_ENTRY(VEN_PRISMSOUND, 0x00010048), + SND_BEBOB_DEV_ENTRY(VEN_PRISMSOUND, 0x00010048, &spec_normal), /* PrismSound, ADA-8XR */ - SND_BEBOB_DEV_ENTRY(VEN_PRISMSOUND, 0x0000ada8), + SND_BEBOB_DEV_ENTRY(VEN_PRISMSOUND, 0x0000ada8, &spec_normal), /* IDs are unknown but able to be supported */ /* Apogee, Mini-ME Firewire */ /* Apogee, Mini-DAC Firewire */ diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h index e8a5e447ff17..7365f92a6aed 100644 --- a/sound/firewire/bebob/bebob.h +++ b/sound/firewire/bebob/bebob.h @@ -48,6 +48,28 @@ struct snd_bebob_stream_formation { /* this is a lookup table for index of stream formations */ extern const unsigned int snd_bebob_rate_table[SND_BEBOB_STRM_FMT_ENTRIES]; +/* device specific operations */ +#define SND_BEBOB_CLOCK_INTERNAL "Internal" +struct snd_bebob_clock_spec { + unsigned int num; + char *const *labels; + int (*get)(struct snd_bebob *bebob, unsigned int *id); +}; +struct snd_bebob_rate_spec { + int (*get)(struct snd_bebob *bebob, unsigned int *rate); + int (*set)(struct snd_bebob *bebob, unsigned int rate); +}; +struct snd_bebob_meter_spec { + unsigned int num; + char *const *labels; + int (*get)(struct snd_bebob *bebob, u32 *target, unsigned int size); +}; +struct snd_bebob_spec { + struct snd_bebob_clock_spec *clock; + struct snd_bebob_rate_spec *rate; + struct snd_bebob_meter_spec *meter; +}; + struct snd_bebob { struct snd_card *card; struct fw_unit *unit; @@ -56,6 +78,8 @@ struct snd_bebob { struct mutex mutex; spinlock_t lock; + const struct snd_bebob_spec *spec; + unsigned int midi_input_ports; unsigned int midi_output_ports; @@ -100,6 +124,12 @@ snd_bebob_read_quad(struct fw_unit *unit, u64 addr, u32 *buf) (void *)buf, sizeof(u32), 0); } +/* AV/C Audio Subunit Specification 1.0 (Oct 2000, 1394TA) */ +int avc_audio_set_selector(struct fw_unit *unit, unsigned int subunit_id, + unsigned int fb_id, unsigned int num); +int avc_audio_get_selector(struct fw_unit *unit, unsigned int subunit_id, + unsigned int fb_id, unsigned int *num); + /* * AVC command extensions, AV/C Unit and Subunit, Revision 17 * (Nov 2003, BridgeCo) @@ -194,12 +224,13 @@ int snd_bebob_create_pcm_devices(struct snd_bebob *bebob); int snd_bebob_create_hwdep_device(struct snd_bebob *bebob); -#define SND_BEBOB_DEV_ENTRY(vendor, model) \ +#define SND_BEBOB_DEV_ENTRY(vendor, model, data) \ { \ .match_flags = IEEE1394_MATCH_VENDOR_ID | \ IEEE1394_MATCH_MODEL_ID, \ .vendor_id = vendor, \ .model_id = model, \ + .driver_data = (kernel_ulong_t)data \ } #endif diff --git a/sound/firewire/bebob/bebob_command.c b/sound/firewire/bebob/bebob_command.c index 6a017951a888..9402cc15dbc1 100644 --- a/sound/firewire/bebob/bebob_command.c +++ b/sound/firewire/bebob/bebob_command.c @@ -8,6 +8,83 @@ #include "./bebob.h" +int avc_audio_set_selector(struct fw_unit *unit, unsigned int subunit_id, + unsigned int fb_id, unsigned int num) +{ + u8 *buf; + int err; + + buf = kzalloc(12, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + buf[0] = 0x00; /* AV/C CONTROL */ + buf[1] = 0x08 | (0x07 & subunit_id); /* AUDIO SUBUNIT ID */ + buf[2] = 0xb8; /* FUNCTION BLOCK */ + buf[3] = 0x80; /* type is 'selector'*/ + buf[4] = 0xff & fb_id; /* function block id */ + buf[5] = 0x10; /* control attribute is CURRENT */ + buf[6] = 0x02; /* selector length is 2 */ + buf[7] = 0xff & num; /* input function block plug number */ + buf[8] = 0x01; /* control selector is SELECTOR_CONTROL */ + + err = fcp_avc_transaction(unit, buf, 12, buf, 12, + BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | + BIT(6) | BIT(7) | BIT(8)); + if (err > 0 && err < 9) + err = -EIO; + else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ + err = -ENOSYS; + else if (buf[0] == 0x0a) /* REJECTED */ + err = -EINVAL; + else if (err > 0) + err = 0; + + kfree(buf); + return err; +} + +int avc_audio_get_selector(struct fw_unit *unit, unsigned int subunit_id, + unsigned int fb_id, unsigned int *num) +{ + u8 *buf; + int err; + + buf = kzalloc(12, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + buf[0] = 0x01; /* AV/C STATUS */ + buf[1] = 0x08 | (0x07 & subunit_id); /* AUDIO SUBUNIT ID */ + buf[2] = 0xb8; /* FUNCTION BLOCK */ + buf[3] = 0x80; /* type is 'selector'*/ + buf[4] = 0xff & fb_id; /* function block id */ + buf[5] = 0x10; /* control attribute is CURRENT */ + buf[6] = 0x02; /* selector length is 2 */ + buf[7] = 0xff; /* input function block plug number */ + buf[8] = 0x01; /* control selector is SELECTOR_CONTROL */ + + err = fcp_avc_transaction(unit, buf, 12, buf, 12, + BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | + BIT(6) | BIT(8)); + if (err > 0 && err < 9) + 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; + + *num = buf[7]; + err = 0; +end: + kfree(buf); + return err; +} + static inline void avc_bridgeco_fill_extension_addr(u8 *buf, u8 *addr) { diff --git a/sound/firewire/bebob/bebob_pcm.c b/sound/firewire/bebob/bebob_pcm.c index 9d868171db4e..4a55561ed4ec 100644 --- a/sound/firewire/bebob/bebob_pcm.c +++ b/sound/firewire/bebob/bebob_pcm.c @@ -155,6 +155,7 @@ static int pcm_open(struct snd_pcm_substream *substream) { struct snd_bebob *bebob = substream->private_data; + struct snd_bebob_rate_spec *spec = bebob->spec->rate; unsigned int sampling_rate; bool internal; int err; @@ -178,7 +179,7 @@ pcm_open(struct snd_pcm_substream *substream) if (!internal || amdtp_stream_pcm_running(&bebob->tx_stream) || amdtp_stream_pcm_running(&bebob->rx_stream)) { - err = snd_bebob_stream_get_rate(bebob, &sampling_rate); + err = spec->get(bebob, &sampling_rate); if (err < 0) { dev_err(&bebob->unit->device, "fail to get sampling rate: %d\n", err); diff --git a/sound/firewire/bebob/bebob_proc.c b/sound/firewire/bebob/bebob_proc.c index c31ca4f42a58..335da64506e0 100644 --- a/sound/firewire/bebob/bebob_proc.c +++ b/sound/firewire/bebob/bebob_proc.c @@ -68,6 +68,39 @@ end: kfree(info); } +static void +proc_read_meters(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + struct snd_bebob *bebob = entry->private_data; + struct snd_bebob_meter_spec *spec = bebob->spec->meter; + u32 *buf; + unsigned int i, c, channels, size; + + if (spec == NULL) + return; + + channels = spec->num * 2; + size = channels * sizeof(u32); + buf = kmalloc(size, GFP_KERNEL); + if (buf == NULL) + return; + + if (spec->get(bebob, buf, size) < 0) + goto end; + + for (i = 0, c = 1; i < channels; i++) { + snd_iprintf(buffer, "%s %d:\t%d\n", + spec->labels[i / 2], c++, buf[i]); + if ((i + 1 < channels - 1) && + (strcmp(spec->labels[i / 2], + spec->labels[(i + 1) / 2]) != 0)) + c = 1; + } +end: + kfree(buf); +} + static void proc_read_formation(struct snd_info_entry *entry, struct snd_info_buffer *buffer) @@ -100,16 +133,25 @@ proc_read_clock(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { struct snd_bebob *bebob = entry->private_data; - unsigned int rate; + struct snd_bebob_rate_spec *rate_spec = bebob->spec->rate; + struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock; + unsigned int rate, id; bool internal; - if (snd_bebob_stream_get_rate(bebob, &rate) >= 0) + if (rate_spec->get(bebob, &rate) >= 0) snd_iprintf(buffer, "Sampling rate: %d\n", rate); - if (snd_bebob_stream_check_internal_clock(bebob, &internal) >= 0) - snd_iprintf(buffer, "Clock Source: %s (MSU-dest: %d)", - (internal) ? "Internal" : "External", - bebob->sync_input_plug); + if (clk_spec) { + if (clk_spec->get(bebob, &id) >= 0) + snd_iprintf(buffer, "Clock Source: %s\n", + clk_spec->labels[id]); + } else { + if (snd_bebob_stream_check_internal_clock(bebob, + &internal) >= 0) + snd_iprintf(buffer, "Clock Source: %s (MSU-dest: %d)\n", + (internal) ? "Internal" : "External", + bebob->sync_input_plug); + } } static void @@ -148,4 +190,7 @@ void snd_bebob_proc_init(struct snd_bebob *bebob) add_node(bebob, root, "clock", proc_read_clock); add_node(bebob, root, "firmware", proc_read_hw_info); add_node(bebob, root, "formation", proc_read_formation); + + if (bebob->spec->meter != NULL) + add_node(bebob, root, "meter", proc_read_meters); } diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c index 85b4fd661787..4a21dcf95d95 100644 --- a/sound/firewire/bebob/bebob_stream.c +++ b/sound/firewire/bebob/bebob_stream.c @@ -119,13 +119,27 @@ end: int snd_bebob_stream_check_internal_clock(struct snd_bebob *bebob, bool *internal) { + struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock; u8 addr[AVC_BRIDGECO_ADDR_BYTES], input[7]; + unsigned int id; int err = 0; *internal = false; + /* 1.The device has its own operation to switch source of clock */ + if (clk_spec) { + err = clk_spec->get(bebob, &id); + if (err < 0) + dev_err(&bebob->unit->device, + "fail to get clock source: %d\n", err); + else if (strncmp(clk_spec->labels[id], SND_BEBOB_CLOCK_INTERNAL, + strlen(SND_BEBOB_CLOCK_INTERNAL)) == 0) + *internal = true; + goto end; + } + /* - * 1.The device don't support to switch source of clock then assumed + * 2.The device don't support to switch source of clock then assumed * to use internal clock always */ if (bebob->sync_input_plug < 0) { @@ -134,7 +148,7 @@ snd_bebob_stream_check_internal_clock(struct snd_bebob *bebob, bool *internal) } /* - * 2.The device supports to switch source of clock by an usual way. + * 3.The device supports to switch source of clock by an usual way. * Let's check input for 'Music Sub Unit Sync Input' plug. */ avc_bridgeco_fill_msu_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, @@ -442,6 +456,7 @@ end: int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, int rate) { + struct snd_bebob_rate_spec *rate_spec = bebob->spec->rate; struct amdtp_stream *master, *slave; atomic_t *slave_substreams; enum cip_flags sync_mode; @@ -508,7 +523,7 @@ int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, int rate) break_both_connections(bebob); /* stop streams if rate is different */ - err = snd_bebob_stream_get_rate(bebob, &curr_rate); + err = rate_spec->get(bebob, &curr_rate); if (err < 0) { dev_err(&bebob->unit->device, "fail to get sampling rate: %d\n", err); @@ -532,7 +547,7 @@ int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, int rate) * If establishing connections at first, Yamaha GO46 * (and maybe Terratec X24) don't generate sound. */ - err = snd_bebob_stream_set_rate(bebob, rate); + err = rate_spec->set(bebob, rate); if (err < 0) { dev_err(&bebob->unit->device, "fail to set sampling rate: %d\n", @@ -822,6 +837,7 @@ end: int snd_bebob_stream_discover(struct snd_bebob *bebob) { + 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; @@ -908,7 +924,8 @@ int snd_bebob_stream_discover(struct snd_bebob *bebob) } /* for check source of clock later */ - err = seek_msu_sync_input_plug(bebob); + if (!clk_spec) + err = seek_msu_sync_input_plug(bebob); end: return err; } -- cgit v1.2.3