Coding style...

This commit is contained in:
Jaroslav Kysela 1998-11-27 14:57:39 +00:00
parent 2605e4d7dd
commit a741225e6e
6 changed files with 1345 additions and 1223 deletions

View file

@ -30,304 +30,329 @@
#define SND_FILE_RAWMIDI "/dev/snd/midi%i%i"
#define SND_PCM_VERSION_MAX SND_PROTOCOL_VERSION( 1, 0, 0 )
typedef struct {
int card;
int device;
int fd;
int card;
int device;
int fd;
} snd_rawmidi_t;
int snd_rawmidi_open( void **handle, int card, int device, int mode )
{
int fd, ver;
char filename[32];
snd_rawmidi_t *rmidi;
*handle = NULL;
if ( card < 0 || card >= SND_CARDS ) return -EINVAL;
sprintf( filename, SND_FILE_RAWMIDI, card, device );
if ( (fd = open( filename, mode )) < 0 ) return -errno;
if ( ioctl( fd, SND_RAWMIDI_IOCTL_PVERSION, &ver ) < 0 ) {
close( fd );
return -errno;
}
if ( SND_PROTOCOL_UNCOMPATIBLE( ver, SND_PCM_VERSION_MAX ) ) {
close( fd );
return -SND_ERROR_UNCOMPATIBLE_VERSION;
}
rmidi = (snd_rawmidi_t *)calloc( 1, sizeof( snd_rawmidi_t ) );
if ( rmidi == NULL ) {
close( fd );
return -ENOMEM;
}
rmidi -> card = card;
rmidi -> device = device;
rmidi -> fd = fd;
*handle = rmidi;
return 0;
int snd_rawmidi_open(void **handle, int card, int device, int mode)
{
int fd, ver;
char filename[32];
snd_rawmidi_t *rmidi;
*handle = NULL;
if (card < 0 || card >= SND_CARDS)
return -EINVAL;
sprintf(filename, SND_FILE_RAWMIDI, card, device);
if ((fd = open(filename, mode)) < 0)
return -errno;
if (ioctl(fd, SND_RAWMIDI_IOCTL_PVERSION, &ver) < 0) {
close(fd);
return -errno;
}
if (SND_PROTOCOL_UNCOMPATIBLE(ver, SND_PCM_VERSION_MAX)) {
close(fd);
return -SND_ERROR_UNCOMPATIBLE_VERSION;
}
rmidi = (snd_rawmidi_t *) calloc(1, sizeof(snd_rawmidi_t));
if (rmidi == NULL) {
close(fd);
return -ENOMEM;
}
rmidi->card = card;
rmidi->device = device;
rmidi->fd = fd;
*handle = rmidi;
return 0;
}
int snd_rawmidi_close( void *handle )
int snd_rawmidi_close(void *handle)
{
snd_rawmidi_t *rmidi;
int res;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
res = close( rmidi -> fd ) < 0 ? -errno : 0;
free( rmidi );
return res;
snd_rawmidi_t *rmidi;
int res;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
res = close(rmidi->fd) < 0 ? -errno : 0;
free(rmidi);
return res;
}
int snd_rawmidi_file_descriptor( void *handle )
int snd_rawmidi_file_descriptor(void *handle)
{
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
return rmidi -> fd;
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
return rmidi->fd;
}
int snd_rawmidi_block_mode( void *handle, int enable )
int snd_rawmidi_block_mode(void *handle, int enable)
{
snd_rawmidi_t *rmidi;
long flags;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
if ( fcntl( rmidi -> fd, F_GETFL, &flags ) < 0 )
return -errno;
if ( enable )
flags |= O_NONBLOCK;
else
flags &= ~O_NONBLOCK;
if ( fcntl( rmidi -> fd, F_SETFL, &flags ) < 0 )
return -errno;
return 0;
snd_rawmidi_t *rmidi;
long flags;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
if (fcntl(rmidi->fd, F_GETFL, &flags) < 0)
return -errno;
if (enable)
flags |= O_NONBLOCK;
else
flags &= ~O_NONBLOCK;
if (fcntl(rmidi->fd, F_SETFL, &flags) < 0)
return -errno;
return 0;
}
int snd_rawmidi_info( void *handle, snd_rawmidi_info_t *info )
int snd_rawmidi_info(void *handle, snd_rawmidi_info_t * info)
{
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
if ( ioctl( rmidi -> fd, SND_RAWMIDI_IOCTL_INFO, info ) < 0 )
return -errno;
return 0;
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
if (ioctl(rmidi->fd, SND_RAWMIDI_IOCTL_INFO, info) < 0)
return -errno;
return 0;
}
int snd_rawmidi_output_switches( void *handle )
int snd_rawmidi_output_switches(void *handle)
{
snd_rawmidi_t *rmidi;
int result;
snd_rawmidi_t *rmidi;
int result;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
if ( ioctl( rmidi -> fd, SND_RAWMIDI_IOCTL_OSWITCHES, &result ) < 0 )
return -errno;
return result;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
if (ioctl(rmidi->fd, SND_RAWMIDI_IOCTL_OSWITCHES, &result) < 0)
return -errno;
return result;
}
int snd_rawmidi_output_switch( void *handle, const char *switch_id )
int snd_rawmidi_output_switch(void *handle, const char *switch_id)
{
snd_rawmidi_t *rmidi;
snd_rawmidi_switch_t uswitch;
int idx, switches, err;
snd_rawmidi_t *rmidi;
snd_rawmidi_switch_t uswitch;
int idx, switches, err;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
/* bellow implementation isn't optimized for speed */
/* info about switches should be cached in the snd_mixer_t structure */
if ( (switches = snd_rawmidi_output_switches( handle )) < 0 )
return switches;
for ( idx = 0; idx < switches; idx++ ) {
if ( (err = snd_rawmidi_output_switch_read( handle, idx, &uswitch )) < 0 )
return err;
if ( !strncmp( switch_id, uswitch.name, sizeof( uswitch.name ) ) )
return idx;
}
return -EINVAL;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
/* bellow implementation isn't optimized for speed */
/* info about switches should be cached in the snd_mixer_t structure */
if ((switches = snd_rawmidi_output_switches(handle)) < 0)
return switches;
for (idx = 0; idx < switches; idx++) {
if ((err = snd_rawmidi_output_switch_read(handle, idx, &uswitch)) < 0)
return err;
if (!strncmp(switch_id, uswitch.name, sizeof(uswitch.name)))
return idx;
}
return -EINVAL;
}
int snd_rawmidi_output_switch_read( void *handle, int switchn, snd_rawmidi_switch_t *data )
int snd_rawmidi_output_switch_read(void *handle, int switchn, snd_rawmidi_switch_t * data)
{
snd_rawmidi_t *rmidi;
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
data -> switchn = switchn;
if ( ioctl( rmidi -> fd, SND_RAWMIDI_IOCTL_OSWITCH_READ, data ) < 0 )
return -errno;
return 0;
}
int snd_rawmidi_output_switch_write( void *handle, int switchn, snd_rawmidi_switch_t *data )
{
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
data -> switchn = switchn;
if ( ioctl( rmidi -> fd, SND_RAWMIDI_IOCTL_OSWITCH_WRITE, data ) < 0 )
return -errno;
return 0;
}
int snd_rawmidi_input_switches( void *handle )
{
snd_rawmidi_t *rmidi;
int result;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
if ( ioctl( rmidi -> fd, SND_RAWMIDI_IOCTL_ISWITCHES, &result ) < 0 )
return -errno;
return result;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
data->switchn = switchn;
if (ioctl(rmidi->fd, SND_RAWMIDI_IOCTL_OSWITCH_READ, data) < 0)
return -errno;
return 0;
}
int snd_rawmidi_input_switch( void *handle, const char *switch_id )
int snd_rawmidi_output_switch_write(void *handle, int switchn, snd_rawmidi_switch_t * data)
{
snd_rawmidi_t *rmidi;
snd_rawmidi_switch_t uswitch;
int idx, switches, err;
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
/* bellow implementation isn't optimized for speed */
/* info about switches should be cached in the snd_mixer_t structure */
if ( (switches = snd_rawmidi_input_switches( handle )) < 0 )
return switches;
for ( idx = 0; idx < switches; idx++ ) {
if ( (err = snd_rawmidi_input_switch_read( handle, idx, &uswitch )) < 0 )
return err;
if ( !strncmp( switch_id, uswitch.name, sizeof( uswitch.name ) ) )
return idx;
}
return -EINVAL;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
data->switchn = switchn;
if (ioctl(rmidi->fd, SND_RAWMIDI_IOCTL_OSWITCH_WRITE, data) < 0)
return -errno;
return 0;
}
int snd_rawmidi_input_switch_read( void *handle, int switchn, snd_rawmidi_switch_t *data )
int snd_rawmidi_input_switches(void *handle)
{
snd_rawmidi_t *rmidi;
snd_rawmidi_t *rmidi;
int result;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
data -> switchn = switchn;
if ( ioctl( rmidi -> fd, SND_RAWMIDI_IOCTL_ISWITCH_READ, data ) < 0 )
return -errno;
return 0;
}
int snd_rawmidi_input_switch_write( void *handle, int switchn, snd_rawmidi_switch_t *data )
{
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
data -> switchn = switchn;
if ( ioctl( rmidi -> fd, SND_RAWMIDI_IOCTL_ISWITCH_WRITE, data ) < 0 )
return -errno;
return 0;
}
int snd_rawmidi_output_params( void *handle, snd_rawmidi_output_params_t *params )
{
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
if ( ioctl( rmidi -> fd, SND_RAWMIDI_IOCTL_OUTPUT_PARAMS, params ) < 0 )
return -errno;
return 0;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
if (ioctl(rmidi->fd, SND_RAWMIDI_IOCTL_ISWITCHES, &result) < 0)
return -errno;
return result;
}
int snd_rawmidi_input_params( void *handle, snd_rawmidi_input_params_t *params )
int snd_rawmidi_input_switch(void *handle, const char *switch_id)
{
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
if ( ioctl( rmidi -> fd, SND_RAWMIDI_IOCTL_INPUT_PARAMS, params ) < 0 )
return -errno;
return 0;
snd_rawmidi_t *rmidi;
snd_rawmidi_switch_t uswitch;
int idx, switches, err;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
/* bellow implementation isn't optimized for speed */
/* info about switches should be cached in the snd_mixer_t structure */
if ((switches = snd_rawmidi_input_switches(handle)) < 0)
return switches;
for (idx = 0; idx < switches; idx++) {
if ((err = snd_rawmidi_input_switch_read(handle, idx, &uswitch)) < 0)
return err;
if (!strncmp(switch_id, uswitch.name, sizeof(uswitch.name)))
return idx;
}
return -EINVAL;
}
int snd_rawmidi_output_status( void *handle, snd_rawmidi_output_status_t *status )
int snd_rawmidi_input_switch_read(void *handle, int switchn, snd_rawmidi_switch_t * data)
{
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
if ( ioctl( rmidi -> fd, SND_RAWMIDI_IOCTL_OUTPUT_STATUS, status ) < 0 )
return -errno;
return 0;
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
data->switchn = switchn;
if (ioctl(rmidi->fd, SND_RAWMIDI_IOCTL_ISWITCH_READ, data) < 0)
return -errno;
return 0;
}
int snd_rawmidi_input_status( void *handle, snd_rawmidi_input_status_t *status )
int snd_rawmidi_input_switch_write(void *handle, int switchn, snd_rawmidi_switch_t * data)
{
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
if ( ioctl( rmidi -> fd, SND_RAWMIDI_IOCTL_INPUT_STATUS, status ) < 0 )
return -errno;
return 0;
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
data->switchn = switchn;
if (ioctl(rmidi->fd, SND_RAWMIDI_IOCTL_ISWITCH_WRITE, data) < 0)
return -errno;
return 0;
}
int snd_rawmidi_drain_output( void *handle )
int snd_rawmidi_output_params(void *handle, snd_rawmidi_output_params_t * params)
{
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
if ( ioctl( rmidi -> fd, SND_RAWMIDI_IOCTL_DRAIN_OUTPUT ) < 0 )
return -errno;
return 0;
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
if (ioctl(rmidi->fd, SND_RAWMIDI_IOCTL_OUTPUT_PARAMS, params) < 0)
return -errno;
return 0;
}
int snd_rawmidi_flush_output( void *handle )
int snd_rawmidi_input_params(void *handle, snd_rawmidi_input_params_t * params)
{
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
if ( ioctl( rmidi -> fd, SND_RAWMIDI_IOCTL_FLUSH_OUTPUT ) < 0 )
return -errno;
return 0;
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
if (ioctl(rmidi->fd, SND_RAWMIDI_IOCTL_INPUT_PARAMS, params) < 0)
return -errno;
return 0;
}
int snd_rawmidi_flush_input( void *handle )
int snd_rawmidi_output_status(void *handle, snd_rawmidi_output_status_t * status)
{
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
if ( ioctl( rmidi -> fd, SND_RAWMIDI_IOCTL_FLUSH_INPUT ) < 0 )
return -errno;
return 0;
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
if (ioctl(rmidi->fd, SND_RAWMIDI_IOCTL_OUTPUT_STATUS, status) < 0)
return -errno;
return 0;
}
ssize_t snd_rawmidi_write( void *handle, const void *buffer, size_t size )
int snd_rawmidi_input_status(void *handle, snd_rawmidi_input_status_t * status)
{
snd_rawmidi_t *rmidi;
ssize_t result;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
result = write( rmidi -> fd, buffer, size );
if ( result < 0 ) return -errno;
return result;
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
if (ioctl(rmidi->fd, SND_RAWMIDI_IOCTL_INPUT_STATUS, status) < 0)
return -errno;
return 0;
}
ssize_t snd_rawmidi_read( void *handle, void *buffer, size_t size )
int snd_rawmidi_drain_output(void *handle)
{
snd_rawmidi_t *rmidi;
ssize_t result;
rmidi = (snd_rawmidi_t *)handle;
if ( !rmidi ) return -EINVAL;
result = read( rmidi -> fd, buffer, size );
if ( result < 0 ) return -errno;
return result;
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
if (ioctl(rmidi->fd, SND_RAWMIDI_IOCTL_DRAIN_OUTPUT) < 0)
return -errno;
return 0;
}
int snd_rawmidi_flush_output(void *handle)
{
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
if (ioctl(rmidi->fd, SND_RAWMIDI_IOCTL_FLUSH_OUTPUT) < 0)
return -errno;
return 0;
}
int snd_rawmidi_flush_input(void *handle)
{
snd_rawmidi_t *rmidi;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
if (ioctl(rmidi->fd, SND_RAWMIDI_IOCTL_FLUSH_INPUT) < 0)
return -errno;
return 0;
}
ssize_t snd_rawmidi_write(void *handle, const void *buffer, size_t size)
{
snd_rawmidi_t *rmidi;
ssize_t result;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
result = write(rmidi->fd, buffer, size);
if (result < 0)
return -errno;
return result;
}
ssize_t snd_rawmidi_read(void *handle, void *buffer, size_t size)
{
snd_rawmidi_t *rmidi;
ssize_t result;
rmidi = (snd_rawmidi_t *) handle;
if (!rmidi)
return -EINVAL;
result = read(rmidi->fd, buffer, size);
if (result < 0)
return -errno;
return result;
}