MODULE_AUTHOR("Frank van de Pol <fvdpol@coil.demon.nl>, Jaroslav Kysela <perex@suse.cz>");
MODULE_DESCRIPTION("Advanced Linux Sound Architecture sequencer MIDI synth.");
MODULE_LICENSE("GPL");
-int output_buffer_size = PAGE_SIZE;
+static int output_buffer_size = PAGE_SIZE;
module_param(output_buffer_size, int, 0644);
MODULE_PARM_DESC(output_buffer_size, "Output buffer size in bytes.");
-int input_buffer_size = PAGE_SIZE;
+static int input_buffer_size = PAGE_SIZE;
module_param(input_buffer_size, int, 0644);
MODULE_PARM_DESC(input_buffer_size, "Input buffer size in bytes.");
/* data for this midi synth driver */
-typedef struct {
- snd_card_t *card;
+struct seq_midisynth {
+ struct snd_card *card;
int device;
int subdevice;
- snd_rawmidi_file_t input_rfile;
- snd_rawmidi_file_t output_rfile;
+ struct snd_rawmidi_file input_rfile;
+ struct snd_rawmidi_file output_rfile;
int seq_client;
int seq_port;
- snd_midi_event_t *parser;
-} seq_midisynth_t;
+ struct snd_midi_event *parser;
+};
-typedef struct {
+struct seq_midisynth_client {
int seq_client;
int num_ports;
int ports_per_device[SNDRV_RAWMIDI_DEVICES];
- seq_midisynth_t *ports[SNDRV_RAWMIDI_DEVICES];
-} seq_midisynth_client_t;
+ struct seq_midisynth *ports[SNDRV_RAWMIDI_DEVICES];
+};
-static seq_midisynth_client_t *synths[SNDRV_CARDS];
+static struct seq_midisynth_client *synths[SNDRV_CARDS];
static DECLARE_MUTEX(register_mutex);
/* handle rawmidi input event (MIDI v1.0 stream) */
-static void snd_midi_input_event(snd_rawmidi_substream_t * substream)
+static void snd_midi_input_event(struct snd_rawmidi_substream *substream)
{
- snd_rawmidi_runtime_t *runtime;
- seq_midisynth_t *msynth;
- snd_seq_event_t ev;
+ struct snd_rawmidi_runtime *runtime;
+ struct seq_midisynth *msynth;
+ struct snd_seq_event ev;
char buf[16], *pbuf;
long res, count;
if (substream == NULL)
return;
runtime = substream->runtime;
- msynth = (seq_midisynth_t *) runtime->private_data;
+ msynth = runtime->private_data;
if (msynth == NULL)
return;
memset(&ev, 0, sizeof(ev));
}
}
-static int dump_midi(snd_rawmidi_substream_t *substream, const char *buf, int count)
+static int dump_midi(struct snd_rawmidi_substream *substream, const char *buf, int count)
{
- snd_rawmidi_runtime_t *runtime;
+ struct snd_rawmidi_runtime *runtime;
int tmp;
snd_assert(substream != NULL || buf != NULL, return -EINVAL);
return 0;
}
-static int event_process_midi(snd_seq_event_t * ev, int direct,
+static int event_process_midi(struct snd_seq_event *ev, int direct,
void *private_data, int atomic, int hop)
{
- seq_midisynth_t *msynth = (seq_midisynth_t *) private_data;
+ struct seq_midisynth *msynth = private_data;
unsigned char msg[10]; /* buffer for constructing midi messages */
- snd_rawmidi_substream_t *substream;
- int res;
+ struct snd_rawmidi_substream *substream;
+ int len;
snd_assert(msynth != NULL, return -EINVAL);
substream = msynth->output_rfile.output;
snd_printd("seq_midi: invalid sysex event flags = 0x%x\n", ev->flags);
return 0;
}
- res = snd_seq_dump_var_event(ev, (snd_seq_dump_func_t)dump_midi, substream);
+ snd_seq_dump_var_event(ev, (snd_seq_dump_func_t)dump_midi, substream);
snd_midi_event_reset_decode(msynth->parser);
- if (res < 0)
- return res;
} else {
if (msynth->parser == NULL)
return -EIO;
- res = snd_midi_event_decode(msynth->parser, msg, sizeof(msg), ev);
- if (res < 0)
- return res;
- if ((res = dump_midi(substream, msg, res)) < 0) {
+ len = snd_midi_event_decode(msynth->parser, msg, sizeof(msg), ev);
+ if (len < 0)
+ return 0;
+ if (dump_midi(substream, msg, len) < 0)
snd_midi_event_reset_decode(msynth->parser);
- return res;
- }
}
return 0;
}
-static int snd_seq_midisynth_new(seq_midisynth_t *msynth,
- snd_card_t *card,
+static int snd_seq_midisynth_new(struct seq_midisynth *msynth,
+ struct snd_card *card,
int device,
int subdevice)
{
}
/* open associated midi device for input */
-static int midisynth_subscribe(void *private_data, snd_seq_port_subscribe_t *info)
+static int midisynth_subscribe(void *private_data, struct snd_seq_port_subscribe *info)
{
int err;
- seq_midisynth_t *msynth = (seq_midisynth_t *)private_data;
- snd_rawmidi_runtime_t *runtime;
- snd_rawmidi_params_t params;
+ struct seq_midisynth *msynth = private_data;
+ struct snd_rawmidi_runtime *runtime;
+ struct snd_rawmidi_params params;
/* open midi port */
- if ((err = snd_rawmidi_kernel_open(msynth->card->number, msynth->device, msynth->subdevice, SNDRV_RAWMIDI_LFLG_INPUT, &msynth->input_rfile)) < 0) {
+ if ((err = snd_rawmidi_kernel_open(msynth->card, msynth->device,
+ msynth->subdevice,
+ SNDRV_RAWMIDI_LFLG_INPUT,
+ &msynth->input_rfile)) < 0) {
snd_printd("midi input open failed!!!\n");
return err;
}
}
/* close associated midi device for input */
-static int midisynth_unsubscribe(void *private_data, snd_seq_port_subscribe_t *info)
+static int midisynth_unsubscribe(void *private_data, struct snd_seq_port_subscribe *info)
{
int err;
- seq_midisynth_t *msynth = (seq_midisynth_t *)private_data;
+ struct seq_midisynth *msynth = private_data;
snd_assert(msynth->input_rfile.input != NULL, return -EINVAL);
err = snd_rawmidi_kernel_release(&msynth->input_rfile);
}
/* open associated midi device for output */
-static int midisynth_use(void *private_data, snd_seq_port_subscribe_t *info)
+static int midisynth_use(void *private_data, struct snd_seq_port_subscribe *info)
{
int err;
- seq_midisynth_t *msynth = (seq_midisynth_t *)private_data;
- snd_rawmidi_params_t params;
+ struct seq_midisynth *msynth = private_data;
+ struct snd_rawmidi_params params;
/* open midi port */
- if ((err = snd_rawmidi_kernel_open(msynth->card->number, msynth->device, msynth->subdevice, SNDRV_RAWMIDI_LFLG_OUTPUT, &msynth->output_rfile)) < 0) {
+ if ((err = snd_rawmidi_kernel_open(msynth->card, msynth->device,
+ msynth->subdevice,
+ SNDRV_RAWMIDI_LFLG_OUTPUT,
+ &msynth->output_rfile)) < 0) {
snd_printd("midi output open failed!!!\n");
return err;
}
}
/* close associated midi device for output */
-static int midisynth_unuse(void *private_data, snd_seq_port_subscribe_t *info)
+static int midisynth_unuse(void *private_data, struct snd_seq_port_subscribe *info)
{
- seq_midisynth_t *msynth = (seq_midisynth_t *)private_data;
+ struct seq_midisynth *msynth = private_data;
unsigned char buf = 0xff; /* MIDI reset */
snd_assert(msynth->output_rfile.output != NULL, return -EINVAL);
}
/* delete given midi synth port */
-static void snd_seq_midisynth_delete(seq_midisynth_t *msynth)
+static void snd_seq_midisynth_delete(struct seq_midisynth *msynth)
{
if (msynth == NULL)
return;
snd_midi_event_free(msynth->parser);
}
-/* set our client name */
-static int set_client_name(seq_midisynth_client_t *client, snd_card_t *card,
- snd_rawmidi_info_t *rmidi)
-{
- snd_seq_client_info_t cinfo;
- const char *name;
-
- memset(&cinfo, 0, sizeof(cinfo));
- cinfo.client = client->seq_client;
- cinfo.type = KERNEL_CLIENT;
- name = rmidi->name[0] ? (const char *)rmidi->name : "External MIDI";
- strlcpy(cinfo.name, name, sizeof(cinfo.name));
- return snd_seq_kernel_client_ctl(client->seq_client, SNDRV_SEQ_IOCTL_SET_CLIENT_INFO, &cinfo);
-}
-
/* register new midi synth port */
-int
-snd_seq_midisynth_register_port(snd_seq_device_t *dev)
+static int
+snd_seq_midisynth_register_port(struct snd_seq_device *dev)
{
- seq_midisynth_client_t *client;
- seq_midisynth_t *msynth, *ms;
- snd_seq_port_info_t port;
- snd_rawmidi_info_t info;
+ struct seq_midisynth_client *client;
+ struct seq_midisynth *msynth, *ms;
+ struct snd_seq_port_info *port;
+ struct snd_rawmidi_info *info;
int newclient = 0;
unsigned int p, ports;
- snd_seq_client_callback_t callbacks;
- snd_seq_port_callback_t pcallbacks;
- snd_card_t *card = dev->card;
+ struct snd_seq_port_callback pcallbacks;
+ struct snd_card *card = dev->card;
int device = dev->device;
unsigned int input_count = 0, output_count = 0;
snd_assert(card != NULL && device >= 0 && device < SNDRV_RAWMIDI_DEVICES, return -EINVAL);
- info.device = device;
- info.stream = SNDRV_RAWMIDI_STREAM_OUTPUT;
- info.subdevice = 0;
- if (snd_rawmidi_info_select(card, &info) >= 0)
- output_count = info.subdevices_count;
- info.stream = SNDRV_RAWMIDI_STREAM_INPUT;
- if (snd_rawmidi_info_select(card, &info) >= 0) {
- input_count = info.subdevices_count;
+ info = kmalloc(sizeof(*info), GFP_KERNEL);
+ if (! info)
+ return -ENOMEM;
+ info->device = device;
+ info->stream = SNDRV_RAWMIDI_STREAM_OUTPUT;
+ info->subdevice = 0;
+ if (snd_rawmidi_info_select(card, info) >= 0)
+ output_count = info->subdevices_count;
+ info->stream = SNDRV_RAWMIDI_STREAM_INPUT;
+ if (snd_rawmidi_info_select(card, info) >= 0) {
+ input_count = info->subdevices_count;
}
ports = output_count;
if (ports < input_count)
ports = input_count;
- if (ports == 0)
+ if (ports == 0) {
+ kfree(info);
return -ENODEV;
+ }
if (ports > (256 / SNDRV_RAWMIDI_DEVICES))
ports = 256 / SNDRV_RAWMIDI_DEVICES;
client = synths[card->number];
if (client == NULL) {
newclient = 1;
- client = kcalloc(1, sizeof(*client), GFP_KERNEL);
+ client = kzalloc(sizeof(*client), GFP_KERNEL);
if (client == NULL) {
up(®ister_mutex);
+ kfree(info);
return -ENOMEM;
}
- memset(&callbacks, 0, sizeof(callbacks));
- callbacks.private_data = client;
- callbacks.allow_input = callbacks.allow_output = 1;
- client->seq_client = snd_seq_create_kernel_client(card, 0, &callbacks);
+ client->seq_client =
+ snd_seq_create_kernel_client(
+ card, 0, "%s", info->name[0] ?
+ (const char *)info->name : "External MIDI");
if (client->seq_client < 0) {
kfree(client);
up(®ister_mutex);
+ kfree(info);
return -ENOMEM;
}
- set_client_name(client, card, &info);
- } else if (device == 0)
- set_client_name(client, card, &info); /* use the first device's name */
+ }
- msynth = kcalloc(ports, sizeof(seq_midisynth_t), GFP_KERNEL);
- if (msynth == NULL)
+ msynth = kcalloc(ports, sizeof(struct seq_midisynth), GFP_KERNEL);
+ port = kmalloc(sizeof(*port), GFP_KERNEL);
+ if (msynth == NULL || port == NULL)
goto __nomem;
for (p = 0; p < ports; p++) {
goto __nomem;
/* declare port */
- memset(&port, 0, sizeof(port));
- port.addr.client = client->seq_client;
- port.addr.port = device * (256 / SNDRV_RAWMIDI_DEVICES) + p;
- port.flags = SNDRV_SEQ_PORT_FLG_GIVEN_PORT;
- memset(&info, 0, sizeof(info));
- info.device = device;
+ memset(port, 0, sizeof(*port));
+ port->addr.client = client->seq_client;
+ port->addr.port = device * (256 / SNDRV_RAWMIDI_DEVICES) + p;
+ port->flags = SNDRV_SEQ_PORT_FLG_GIVEN_PORT;
+ memset(info, 0, sizeof(*info));
+ info->device = device;
if (p < output_count)
- info.stream = SNDRV_RAWMIDI_STREAM_OUTPUT;
+ info->stream = SNDRV_RAWMIDI_STREAM_OUTPUT;
else
- info.stream = SNDRV_RAWMIDI_STREAM_INPUT;
- info.subdevice = p;
- if (snd_rawmidi_info_select(card, &info) >= 0)
- strcpy(port.name, info.subname);
- if (! port.name[0]) {
- if (info.name[0]) {
+ info->stream = SNDRV_RAWMIDI_STREAM_INPUT;
+ info->subdevice = p;
+ if (snd_rawmidi_info_select(card, info) >= 0)
+ strcpy(port->name, info->subname);
+ if (! port->name[0]) {
+ if (info->name[0]) {
if (ports > 1)
- snprintf(port.name, sizeof(port.name), "%s-%d", info.name, p);
+ snprintf(port->name, sizeof(port->name), "%s-%d", info->name, p);
else
- snprintf(port.name, sizeof(port.name), "%s", info.name);
+ snprintf(port->name, sizeof(port->name), "%s", info->name);
} else {
/* last resort */
if (ports > 1)
- sprintf(port.name, "MIDI %d-%d-%d", card->number, device, p);
+ sprintf(port->name, "MIDI %d-%d-%d", card->number, device, p);
else
- sprintf(port.name, "MIDI %d-%d", card->number, device);
+ sprintf(port->name, "MIDI %d-%d", card->number, device);
}
}
- if ((info.flags & SNDRV_RAWMIDI_INFO_OUTPUT) && p < output_count)
- port.capability |= SNDRV_SEQ_PORT_CAP_WRITE | SNDRV_SEQ_PORT_CAP_SYNC_WRITE | SNDRV_SEQ_PORT_CAP_SUBS_WRITE;
- if ((info.flags & SNDRV_RAWMIDI_INFO_INPUT) && p < input_count)
- port.capability |= SNDRV_SEQ_PORT_CAP_READ | SNDRV_SEQ_PORT_CAP_SYNC_READ | SNDRV_SEQ_PORT_CAP_SUBS_READ;
- if ((port.capability & (SNDRV_SEQ_PORT_CAP_WRITE|SNDRV_SEQ_PORT_CAP_READ)) == (SNDRV_SEQ_PORT_CAP_WRITE|SNDRV_SEQ_PORT_CAP_READ) &&
- info.flags & SNDRV_RAWMIDI_INFO_DUPLEX)
- port.capability |= SNDRV_SEQ_PORT_CAP_DUPLEX;
- port.type = SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC;
- port.midi_channels = 16;
+ if ((info->flags & SNDRV_RAWMIDI_INFO_OUTPUT) && p < output_count)
+ port->capability |= SNDRV_SEQ_PORT_CAP_WRITE | SNDRV_SEQ_PORT_CAP_SYNC_WRITE | SNDRV_SEQ_PORT_CAP_SUBS_WRITE;
+ if ((info->flags & SNDRV_RAWMIDI_INFO_INPUT) && p < input_count)
+ port->capability |= SNDRV_SEQ_PORT_CAP_READ | SNDRV_SEQ_PORT_CAP_SYNC_READ | SNDRV_SEQ_PORT_CAP_SUBS_READ;
+ if ((port->capability & (SNDRV_SEQ_PORT_CAP_WRITE|SNDRV_SEQ_PORT_CAP_READ)) == (SNDRV_SEQ_PORT_CAP_WRITE|SNDRV_SEQ_PORT_CAP_READ) &&
+ info->flags & SNDRV_RAWMIDI_INFO_DUPLEX)
+ port->capability |= SNDRV_SEQ_PORT_CAP_DUPLEX;
+ port->type = SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC;
+ port->midi_channels = 16;
memset(&pcallbacks, 0, sizeof(pcallbacks));
pcallbacks.owner = THIS_MODULE;
pcallbacks.private_data = ms;
pcallbacks.use = midisynth_use;
pcallbacks.unuse = midisynth_unuse;
pcallbacks.event_input = event_process_midi;
- port.kernel = &pcallbacks;
- if (snd_seq_kernel_client_ctl(client->seq_client, SNDRV_SEQ_IOCTL_CREATE_PORT, &port)<0)
+ port->kernel = &pcallbacks;
+ if (snd_seq_kernel_client_ctl(client->seq_client, SNDRV_SEQ_IOCTL_CREATE_PORT, port)<0)
goto __nomem;
ms->seq_client = client->seq_client;
- ms->seq_port = port.addr.port;
+ ms->seq_port = port->addr.port;
}
client->ports_per_device[device] = ports;
client->ports[device] = msynth;
if (newclient)
synths[card->number] = client;
up(®ister_mutex);
+ kfree(info);
+ kfree(port);
return 0; /* success */
__nomem:
snd_seq_delete_kernel_client(client->seq_client);
kfree(client);
}
+ kfree(info);
+ kfree(port);
up(®ister_mutex);
return -ENOMEM;
}
/* release midi synth port */
-int
-snd_seq_midisynth_unregister_port(snd_seq_device_t *dev)
+static int
+snd_seq_midisynth_unregister_port(struct snd_seq_device *dev)
{
- seq_midisynth_client_t *client;
- seq_midisynth_t *msynth;
- snd_card_t *card = dev->card;
+ struct seq_midisynth_client *client;
+ struct seq_midisynth *msynth;
+ struct snd_card *card = dev->card;
int device = dev->device, p, ports;
down(®ister_mutex);
client->ports_per_device[device] = 0;
msynth = client->ports[device];
client->ports[device] = NULL;
- snd_runtime_check(msynth != NULL || ports <= 0, goto __skip);
for (p = 0; p < ports; p++)
snd_seq_midisynth_delete(&msynth[p]);
kfree(msynth);
- __skip:
client->num_ports--;
if (client->num_ports <= 0) {
snd_seq_delete_kernel_client(client->seq_client);
static int __init alsa_seq_midi_init(void)
{
- static snd_seq_dev_ops_t ops = {
+ static struct snd_seq_dev_ops ops = {
snd_seq_midisynth_register_port,
snd_seq_midisynth_unregister_port,
};