#define SNDRV_FIREWIRE_IOCTL_LOCK _IO('H', 0xf9)
#define SNDRV_FIREWIRE_IOCTL_UNLOCK _IO('H', 0xfa)
#define SNDRV_FIREWIRE_IOCTL_TASCAM_STATE _IOR('H', 0xfb, struct snd_firewire_tascam_state)
+#define SNDRV_FIREWIRE_IOCTL_MOTU_REGISTER_DSP_METER _IOR('H', 0xfc, struct snd_firewire_motu_register_dsp_meter)
+#define SNDRV_FIREWIRE_IOCTL_MOTU_COMMAND_DSP_METER _IOR('H', 0xfd, struct snd_firewire_motu_command_dsp_meter)
#define SNDRV_FIREWIRE_TYPE_DICE 1
#define SNDRV_FIREWIRE_TYPE_FIREWORKS 2
};
struct msg_parser {
+ spinlock_t lock;
enum msg_parser_state state;
unsigned int interval;
unsigned int message_count;
parser = devm_kzalloc(&motu->card->card_dev, sizeof(*parser), GFP_KERNEL);
if (!parser)
return -ENOMEM;
+ spin_lock_init(&parser->lock);
motu->message_parser = parser;
return 0;
{
struct msg_parser *parser = motu->message_parser;
unsigned int interval = parser->interval;
+ unsigned long flags;
int i;
+ spin_lock_irqsave(&parser->lock, flags);
+
for (i = 0; i < desc_count; ++i) {
const struct pkt_desc *desc = descs + i;
__be32 *buffer = desc->ctx_payload;
}
}
}
+
+ spin_unlock_irqrestore(&parser->lock, flags);
+}
+
+void snd_motu_command_dsp_message_parser_copy_meter(struct snd_motu *motu,
+ struct snd_firewire_motu_command_dsp_meter *meter)
+{
+ struct msg_parser *parser = motu->message_parser;
+ unsigned long flags;
+
+ spin_lock_irqsave(&parser->lock, flags);
+ memcpy(meter, &parser->meter, sizeof(*meter));
+ spin_unlock_irqrestore(&parser->lock, flags);
}
return hwdep_lock(motu);
case SNDRV_FIREWIRE_IOCTL_UNLOCK:
return hwdep_unlock(motu);
+ case SNDRV_FIREWIRE_IOCTL_MOTU_REGISTER_DSP_METER:
+ {
+ struct snd_firewire_motu_register_dsp_meter *meter;
+ int err;
+
+ if (!(motu->spec->flags & SND_MOTU_SPEC_REGISTER_DSP))
+ return -ENXIO;
+
+ meter = kzalloc(sizeof(*meter), GFP_KERNEL);
+ if (!meter)
+ return -ENOMEM;
+
+ snd_motu_register_dsp_message_parser_copy_meter(motu, meter);
+
+ err = copy_to_user((void __user *)arg, meter, sizeof(*meter));
+ kfree(meter);
+
+ if (err)
+ return -EFAULT;
+
+ return 0;
+ }
+ case SNDRV_FIREWIRE_IOCTL_MOTU_COMMAND_DSP_METER:
+ {
+ struct snd_firewire_motu_command_dsp_meter *meter;
+ int err;
+
+ if (!(motu->spec->flags & SND_MOTU_SPEC_COMMAND_DSP))
+ return -ENXIO;
+
+ meter = kzalloc(sizeof(*meter), GFP_KERNEL);
+ if (!meter)
+ return -ENOMEM;
+
+ snd_motu_command_dsp_message_parser_copy_meter(motu, meter);
+
+ err = copy_to_user((void __user *)arg, meter, sizeof(*meter));
+ kfree(meter);
+
+ if (err)
+ return -EFAULT;
+
+ return 0;
+ }
default:
return -ENOIOCTLCMD;
}
};
struct msg_parser {
+ spinlock_t lock;
struct snd_firewire_motu_register_dsp_meter meter;
bool meter_pos_quirk;
};
parser = devm_kzalloc(&motu->card->card_dev, sizeof(*parser), GFP_KERNEL);
if (!parser)
return -ENOMEM;
+ spin_lock_init(&parser->lock);
if (motu->spec == &snd_motu_spec_4pre || motu->spec == &snd_motu_spec_audio_express)
parser->meter_pos_quirk = true;
motu->message_parser = parser;
{
struct msg_parser *parser = motu->message_parser;
bool meter_pos_quirk = parser->meter_pos_quirk;
+ unsigned long flags;
int i;
+ spin_lock_irqsave(&parser->lock, flags);
+
for (i = 0; i < desc_count; ++i) {
const struct pkt_desc *desc = descs + i;
__be32 *buffer = desc->ctx_payload;
}
}
}
+
+ spin_unlock_irqrestore(&parser->lock, flags);
+}
+
+void snd_motu_register_dsp_message_parser_copy_meter(struct snd_motu *motu,
+ struct snd_firewire_motu_register_dsp_meter *meter)
+{
+ struct msg_parser *parser = motu->message_parser;
+ unsigned long flags;
+
+ spin_lock_irqsave(&parser->lock, flags);
+ memcpy(meter, &parser->meter, sizeof(*meter));
+ spin_unlock_irqrestore(&parser->lock, flags);
}
int snd_motu_register_dsp_message_parser_init(struct snd_motu *motu);
void snd_motu_register_dsp_message_parser_parse(struct snd_motu *motu, const struct pkt_desc *descs,
unsigned int desc_count, unsigned int data_block_quadlets);
+void snd_motu_register_dsp_message_parser_copy_meter(struct snd_motu *motu,
+ struct snd_firewire_motu_register_dsp_meter *meter);
int snd_motu_command_dsp_message_parser_new(struct snd_motu *motu);
int snd_motu_command_dsp_message_parser_init(struct snd_motu *motu, enum cip_sfc sfc);
void snd_motu_command_dsp_message_parser_parse(struct snd_motu *motu, const struct pkt_desc *descs,
unsigned int desc_count, unsigned int data_block_quadlets);
+void snd_motu_command_dsp_message_parser_copy_meter(struct snd_motu *motu,
+ struct snd_firewire_motu_command_dsp_meter *meter);
#endif