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-rw-r--r--sound/core/rawmidi.c387
1 files changed, 204 insertions, 183 deletions
diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
index d033e61c05c7..d4d124e21924 100644
--- a/sound/core/rawmidi.c
+++ b/sound/core/rawmidi.c
@@ -50,16 +50,28 @@ module_param_array(amidi_map, int, NULL, 0444);
MODULE_PARM_DESC(amidi_map, "Raw MIDI device number assigned to 2nd OSS device.");
#endif /* CONFIG_SND_OSSEMUL */
-static int snd_rawmidi_free(snd_rawmidi_t *rawmidi);
-static int snd_rawmidi_dev_free(snd_device_t *device);
-static int snd_rawmidi_dev_register(snd_device_t *device);
-static int snd_rawmidi_dev_disconnect(snd_device_t *device);
-static int snd_rawmidi_dev_unregister(snd_device_t *device);
-
-static snd_rawmidi_t *snd_rawmidi_devices[SNDRV_CARDS * SNDRV_RAWMIDI_DEVICES];
+static int snd_rawmidi_free(struct snd_rawmidi *rawmidi);
+static int snd_rawmidi_dev_free(struct snd_device *device);
+static int snd_rawmidi_dev_register(struct snd_device *device);
+static int snd_rawmidi_dev_disconnect(struct snd_device *device);
+static int snd_rawmidi_dev_unregister(struct snd_device *device);
+static LIST_HEAD(snd_rawmidi_devices);
static DECLARE_MUTEX(register_mutex);
+static struct snd_rawmidi *snd_rawmidi_search(struct snd_card *card, int device)
+{
+ struct list_head *p;
+ struct snd_rawmidi *rawmidi;
+
+ list_for_each(p, &snd_rawmidi_devices) {
+ rawmidi = list_entry(p, struct snd_rawmidi, list);
+ if (rawmidi->card == card && rawmidi->device == device)
+ return rawmidi;
+ }
+ return NULL;
+}
+
static inline unsigned short snd_rawmidi_file_flags(struct file *file)
{
switch (file->f_mode & (FMODE_READ | FMODE_WRITE)) {
@@ -72,34 +84,35 @@ static inline unsigned short snd_rawmidi_file_flags(struct file *file)
}
}
-static inline int snd_rawmidi_ready(snd_rawmidi_substream_t * substream)
+static inline int snd_rawmidi_ready(struct snd_rawmidi_substream *substream)
{
- snd_rawmidi_runtime_t *runtime = substream->runtime;
+ struct snd_rawmidi_runtime *runtime = substream->runtime;
return runtime->avail >= runtime->avail_min;
}
-static inline int snd_rawmidi_ready_append(snd_rawmidi_substream_t * substream, size_t count)
+static inline int snd_rawmidi_ready_append(struct snd_rawmidi_substream *substream,
+ size_t count)
{
- snd_rawmidi_runtime_t *runtime = substream->runtime;
+ struct snd_rawmidi_runtime *runtime = substream->runtime;
return runtime->avail >= runtime->avail_min &&
(!substream->append || runtime->avail >= count);
}
static void snd_rawmidi_input_event_tasklet(unsigned long data)
{
- snd_rawmidi_substream_t *substream = (snd_rawmidi_substream_t *)data;
+ struct snd_rawmidi_substream *substream = (struct snd_rawmidi_substream *)data;
substream->runtime->event(substream);
}
static void snd_rawmidi_output_trigger_tasklet(unsigned long data)
{
- snd_rawmidi_substream_t *substream = (snd_rawmidi_substream_t *)data;
+ struct snd_rawmidi_substream *substream = (struct snd_rawmidi_substream *)data;
substream->ops->trigger(substream, 1);
}
-static int snd_rawmidi_runtime_create(snd_rawmidi_substream_t * substream)
+static int snd_rawmidi_runtime_create(struct snd_rawmidi_substream *substream)
{
- snd_rawmidi_runtime_t *runtime;
+ struct snd_rawmidi_runtime *runtime;
if ((runtime = kzalloc(sizeof(*runtime), GFP_KERNEL)) == NULL)
return -ENOMEM;
@@ -129,9 +142,9 @@ static int snd_rawmidi_runtime_create(snd_rawmidi_substream_t * substream)
return 0;
}
-static int snd_rawmidi_runtime_free(snd_rawmidi_substream_t * substream)
+static int snd_rawmidi_runtime_free(struct snd_rawmidi_substream *substream)
{
- snd_rawmidi_runtime_t *runtime = substream->runtime;
+ struct snd_rawmidi_runtime *runtime = substream->runtime;
kfree(runtime->buffer);
kfree(runtime);
@@ -139,7 +152,7 @@ static int snd_rawmidi_runtime_free(snd_rawmidi_substream_t * substream)
return 0;
}
-static inline void snd_rawmidi_output_trigger(snd_rawmidi_substream_t * substream, int up)
+static inline void snd_rawmidi_output_trigger(struct snd_rawmidi_substream *substream,int up)
{
if (up) {
tasklet_hi_schedule(&substream->runtime->tasklet);
@@ -149,17 +162,17 @@ static inline void snd_rawmidi_output_trigger(snd_rawmidi_substream_t * substrea
}
}
-static void snd_rawmidi_input_trigger(snd_rawmidi_substream_t * substream, int up)
+static void snd_rawmidi_input_trigger(struct snd_rawmidi_substream *substream, int up)
{
substream->ops->trigger(substream, up);
if (!up && substream->runtime->event)
tasklet_kill(&substream->runtime->tasklet);
}
-int snd_rawmidi_drop_output(snd_rawmidi_substream_t * substream)
+int snd_rawmidi_drop_output(struct snd_rawmidi_substream *substream)
{
unsigned long flags;
- snd_rawmidi_runtime_t *runtime = substream->runtime;
+ struct snd_rawmidi_runtime *runtime = substream->runtime;
snd_rawmidi_output_trigger(substream, 0);
runtime->drain = 0;
@@ -170,11 +183,11 @@ int snd_rawmidi_drop_output(snd_rawmidi_substream_t * substream)
return 0;
}
-int snd_rawmidi_drain_output(snd_rawmidi_substream_t * substream)
+int snd_rawmidi_drain_output(struct snd_rawmidi_substream *substream)
{
int err;
long timeout;
- snd_rawmidi_runtime_t *runtime = substream->runtime;
+ struct snd_rawmidi_runtime *runtime = substream->runtime;
err = 0;
runtime->drain = 1;
@@ -199,10 +212,10 @@ int snd_rawmidi_drain_output(snd_rawmidi_substream_t * substream)
return err;
}
-int snd_rawmidi_drain_input(snd_rawmidi_substream_t * substream)
+int snd_rawmidi_drain_input(struct snd_rawmidi_substream *substream)
{
unsigned long flags;
- snd_rawmidi_runtime_t *runtime = substream->runtime;
+ struct snd_rawmidi_runtime *runtime = substream->runtime;
snd_rawmidi_input_trigger(substream, 0);
runtime->drain = 0;
@@ -213,18 +226,20 @@ int snd_rawmidi_drain_input(snd_rawmidi_substream_t * substream)
return 0;
}
-int snd_rawmidi_kernel_open(int cardnum, int device, int subdevice,
- int mode, snd_rawmidi_file_t * rfile)
+int snd_rawmidi_kernel_open(struct snd_card *card, int device, int subdevice,
+ int mode, struct snd_rawmidi_file * rfile)
{
- snd_rawmidi_t *rmidi;
+ struct snd_rawmidi *rmidi;
struct list_head *list1, *list2;
- snd_rawmidi_substream_t *sinput = NULL, *soutput = NULL;
- snd_rawmidi_runtime_t *input = NULL, *output = NULL;
+ struct snd_rawmidi_substream *sinput = NULL, *soutput = NULL;
+ struct snd_rawmidi_runtime *input = NULL, *output = NULL;
int err;
if (rfile)
rfile->input = rfile->output = NULL;
- rmidi = snd_rawmidi_devices[(cardnum * SNDRV_RAWMIDI_DEVICES) + device];
+ down(&register_mutex);
+ rmidi = snd_rawmidi_search(card, device);
+ up(&register_mutex);
if (rmidi == NULL) {
err = -ENODEV;
goto __error1;
@@ -275,7 +290,7 @@ int snd_rawmidi_kernel_open(int cardnum, int device, int subdevice,
}
break;
}
- sinput = list_entry(list1, snd_rawmidi_substream_t, list);
+ sinput = list_entry(list1, struct snd_rawmidi_substream, list);
if ((mode & SNDRV_RAWMIDI_LFLG_INPUT) && sinput->opened)
goto __nexti;
if (subdevice < 0 || (subdevice >= 0 && subdevice == sinput->number))
@@ -293,7 +308,7 @@ int snd_rawmidi_kernel_open(int cardnum, int device, int subdevice,
}
break;
}
- soutput = list_entry(list2, snd_rawmidi_substream_t, list);
+ soutput = list_entry(list2, struct snd_rawmidi_substream, list);
if (mode & SNDRV_RAWMIDI_LFLG_OUTPUT) {
if (mode & SNDRV_RAWMIDI_LFLG_APPEND) {
if (soutput->opened && !soutput->append)
@@ -367,39 +382,29 @@ int snd_rawmidi_kernel_open(int cardnum, int device, int subdevice,
static int snd_rawmidi_open(struct inode *inode, struct file *file)
{
int maj = imajor(inode);
- int cardnum;
- snd_card_t *card;
- int device, subdevice;
+ struct snd_card *card;
+ int subdevice;
unsigned short fflags;
int err;
- snd_rawmidi_t *rmidi;
- snd_rawmidi_file_t *rawmidi_file;
+ struct snd_rawmidi *rmidi;
+ struct snd_rawmidi_file *rawmidi_file;
wait_queue_t wait;
struct list_head *list;
- snd_ctl_file_t *kctl;
+ struct snd_ctl_file *kctl;
if (maj == snd_major) {
- cardnum = SNDRV_MINOR_CARD(iminor(inode));
- cardnum %= SNDRV_CARDS;
- device = SNDRV_MINOR_DEVICE(iminor(inode)) - SNDRV_MINOR_RAWMIDI;
- device %= SNDRV_MINOR_RAWMIDIS;
+ rmidi = snd_lookup_minor_data(iminor(inode),
+ SNDRV_DEVICE_TYPE_RAWMIDI);
#ifdef CONFIG_SND_OSSEMUL
} else if (maj == SOUND_MAJOR) {
- cardnum = SNDRV_MINOR_OSS_CARD(iminor(inode));
- cardnum %= SNDRV_CARDS;
- device = SNDRV_MINOR_OSS_DEVICE(iminor(inode)) == SNDRV_MINOR_OSS_MIDI ?
- midi_map[cardnum] : amidi_map[cardnum];
+ rmidi = snd_lookup_oss_minor_data(iminor(inode),
+ SNDRV_OSS_DEVICE_TYPE_MIDI);
#endif
} else
return -ENXIO;
- rmidi = snd_rawmidi_devices[(cardnum * SNDRV_RAWMIDI_DEVICES) + device];
if (rmidi == NULL)
return -ENODEV;
-#ifdef CONFIG_SND_OSSEMUL
- if (maj == SOUND_MAJOR && !rmidi->ossreg)
- return -ENXIO;
-#endif
if ((file->f_flags & O_APPEND) && !(file->f_flags & O_NONBLOCK))
return -EINVAL; /* invalid combination */
card = rmidi->card;
@@ -429,7 +434,8 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file)
}
}
up_read(&card->controls_rwsem);
- err = snd_rawmidi_kernel_open(cardnum, device, subdevice, fflags, rawmidi_file);
+ err = snd_rawmidi_kernel_open(rmidi->card, rmidi->device,
+ subdevice, fflags, rawmidi_file);
if (err >= 0)
break;
if (err == -EAGAIN) {
@@ -465,11 +471,11 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file)
return err;
}
-int snd_rawmidi_kernel_release(snd_rawmidi_file_t * rfile)
+int snd_rawmidi_kernel_release(struct snd_rawmidi_file * rfile)
{
- snd_rawmidi_t *rmidi;
- snd_rawmidi_substream_t *substream;
- snd_rawmidi_runtime_t *runtime;
+ struct snd_rawmidi *rmidi;
+ struct snd_rawmidi_substream *substream;
+ struct snd_rawmidi_runtime *runtime;
snd_assert(rfile != NULL, return -ENXIO);
snd_assert(rfile->input != NULL || rfile->output != NULL, return -ENXIO);
@@ -515,8 +521,8 @@ int snd_rawmidi_kernel_release(snd_rawmidi_file_t * rfile)
static int snd_rawmidi_release(struct inode *inode, struct file *file)
{
- snd_rawmidi_file_t *rfile;
- snd_rawmidi_t *rmidi;
+ struct snd_rawmidi_file *rfile;
+ struct snd_rawmidi *rmidi;
int err;
rfile = file->private_data;
@@ -528,9 +534,10 @@ static int snd_rawmidi_release(struct inode *inode, struct file *file)
return err;
}
-int snd_rawmidi_info(snd_rawmidi_substream_t *substream, snd_rawmidi_info_t *info)
+static int snd_rawmidi_info(struct snd_rawmidi_substream *substream,
+ struct snd_rawmidi_info *info)
{
- snd_rawmidi_t *rmidi;
+ struct snd_rawmidi *rmidi;
if (substream == NULL)
return -ENODEV;
@@ -550,26 +557,30 @@ int snd_rawmidi_info(snd_rawmidi_substream_t *substream, snd_rawmidi_info_t *inf
return 0;
}
-static int snd_rawmidi_info_user(snd_rawmidi_substream_t *substream, snd_rawmidi_info_t __user * _info)
+static int snd_rawmidi_info_user(struct snd_rawmidi_substream *substream,
+ struct snd_rawmidi_info __user * _info)
{
- snd_rawmidi_info_t info;
+ struct snd_rawmidi_info info;
int err;
if ((err = snd_rawmidi_info(substream, &info)) < 0)
return err;
- if (copy_to_user(_info, &info, sizeof(snd_rawmidi_info_t)))
+ if (copy_to_user(_info, &info, sizeof(struct snd_rawmidi_info)))
return -EFAULT;
return 0;
}
-int snd_rawmidi_info_select(snd_card_t *card, snd_rawmidi_info_t *info)
+int snd_rawmidi_info_select(struct snd_card *card, struct snd_rawmidi_info *info)
{
- snd_rawmidi_t *rmidi;
- snd_rawmidi_str_t *pstr;
- snd_rawmidi_substream_t *substream;
+ struct snd_rawmidi *rmidi;
+ struct snd_rawmidi_str *pstr;
+ struct snd_rawmidi_substream *substream;
struct list_head *list;
- if (info->device >= SNDRV_RAWMIDI_DEVICES)
+
+ down(&register_mutex);
+ rmidi = snd_rawmidi_search(card, info->device);
+ up(&register_mutex);
+ if (!rmidi)
return -ENXIO;
- rmidi = snd_rawmidi_devices[card->number * SNDRV_RAWMIDI_DEVICES + info->device];
if (info->stream < 0 || info->stream > 1)
return -EINVAL;
pstr = &rmidi->streams[info->stream];
@@ -578,18 +589,18 @@ int snd_rawmidi_info_select(snd_card_t *card, snd_rawmidi_info_t *info)
if (info->subdevice >= pstr->substream_count)
return -ENXIO;
list_for_each(list, &pstr->substreams) {
- substream = list_entry(list, snd_rawmidi_substream_t, list);
+ substream = list_entry(list, struct snd_rawmidi_substream, list);
if ((unsigned int)substream->number == info->subdevice)
return snd_rawmidi_info(substream, info);
}
return -ENXIO;
}
-static int snd_rawmidi_info_select_user(snd_card_t *card,
- snd_rawmidi_info_t __user *_info)
+static int snd_rawmidi_info_select_user(struct snd_card *card,
+ struct snd_rawmidi_info __user *_info)
{
int err;
- snd_rawmidi_info_t info;
+ struct snd_rawmidi_info info;
if (get_user(info.device, &_info->device))
return -EFAULT;
if (get_user(info.stream, &_info->stream))
@@ -598,16 +609,16 @@ static int snd_rawmidi_info_select_user(snd_card_t *card,
return -EFAULT;
if ((err = snd_rawmidi_info_select(card, &info)) < 0)
return err;
- if (copy_to_user(_info, &info, sizeof(snd_rawmidi_info_t)))
+ if (copy_to_user(_info, &info, sizeof(struct snd_rawmidi_info)))
return -EFAULT;
return 0;
}
-int snd_rawmidi_output_params(snd_rawmidi_substream_t * substream,
- snd_rawmidi_params_t * params)
+int snd_rawmidi_output_params(struct snd_rawmidi_substream *substream,
+ struct snd_rawmidi_params * params)
{
char *newbuf;
- snd_rawmidi_runtime_t *runtime = substream->runtime;
+ struct snd_rawmidi_runtime *runtime = substream->runtime;
if (substream->append && substream->use_count > 1)
return -EBUSY;
@@ -624,17 +635,18 @@ int snd_rawmidi_output_params(snd_rawmidi_substream_t * substream,
kfree(runtime->buffer);
runtime->buffer = newbuf;
runtime->buffer_size = params->buffer_size;
+ runtime->avail = runtime->buffer_size;
}
runtime->avail_min = params->avail_min;
substream->active_sensing = !params->no_active_sensing;
return 0;
}
-int snd_rawmidi_input_params(snd_rawmidi_substream_t * substream,
- snd_rawmidi_params_t * params)
+int snd_rawmidi_input_params(struct snd_rawmidi_substream *substream,
+ struct snd_rawmidi_params * params)
{
char *newbuf;
- snd_rawmidi_runtime_t *runtime = substream->runtime;
+ struct snd_rawmidi_runtime *runtime = substream->runtime;
snd_rawmidi_drain_input(substream);
if (params->buffer_size < 32 || params->buffer_size > 1024L * 1024L) {
@@ -654,10 +666,10 @@ int snd_rawmidi_input_params(snd_rawmidi_substream_t * substream,
return 0;
}
-static int snd_rawmidi_output_status(snd_rawmidi_substream_t * substream,
- snd_rawmidi_status_t * status)
+static int snd_rawmidi_output_status(struct snd_rawmidi_substream *substream,
+ struct snd_rawmidi_status * status)
{
- snd_rawmidi_runtime_t *runtime = substream->runtime;
+ struct snd_rawmidi_runtime *runtime = substream->runtime;
memset(status, 0, sizeof(*status));
status->stream = SNDRV_RAWMIDI_STREAM_OUTPUT;
@@ -667,10 +679,10 @@ static int snd_rawmidi_output_status(snd_rawmidi_substream_t * substream,
return 0;
}
-static int snd_rawmidi_input_status(snd_rawmidi_substream_t * substream,
- snd_rawmidi_status_t * status)
+static int snd_rawmidi_input_status(struct snd_rawmidi_substream *substream,
+ struct snd_rawmidi_status * status)
{
- snd_rawmidi_runtime_t *runtime = substream->runtime;
+ struct snd_rawmidi_runtime *runtime = substream->runtime;
memset(status, 0, sizeof(*status));
status->stream = SNDRV_RAWMIDI_STREAM_INPUT;
@@ -684,7 +696,7 @@ static int snd_rawmidi_input_status(snd_rawmidi_substream_t * substream,
static long snd_rawmidi_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
- snd_rawmidi_file_t *rfile;
+ struct snd_rawmidi_file *rfile;
void __user *argp = (void __user *)arg;
rfile = file->private_data;
@@ -695,8 +707,8 @@ static long snd_rawmidi_ioctl(struct file *file, unsigned int cmd, unsigned long
return put_user(SNDRV_RAWMIDI_VERSION, (int __user *)argp) ? -EFAULT : 0;
case SNDRV_RAWMIDI_IOCTL_INFO:
{
- snd_rawmidi_stream_t stream;
- snd_rawmidi_info_t __user *info = argp;
+ int stream;
+ struct snd_rawmidi_info __user *info = argp;
if (get_user(stream, &info->stream))
return -EFAULT;
switch (stream) {
@@ -710,8 +722,8 @@ static long snd_rawmidi_ioctl(struct file *file, unsigned int cmd, unsigned long
}
case SNDRV_RAWMIDI_IOCTL_PARAMS:
{
- snd_rawmidi_params_t params;
- if (copy_from_user(&params, argp, sizeof(snd_rawmidi_params_t)))
+ struct snd_rawmidi_params params;
+ if (copy_from_user(&params, argp, sizeof(struct snd_rawmidi_params)))
return -EFAULT;
switch (params.stream) {
case SNDRV_RAWMIDI_STREAM_OUTPUT:
@@ -729,8 +741,8 @@ static long snd_rawmidi_ioctl(struct file *file, unsigned int cmd, unsigned long
case SNDRV_RAWMIDI_IOCTL_STATUS:
{
int err = 0;
- snd_rawmidi_status_t status;
- if (copy_from_user(&status, argp, sizeof(snd_rawmidi_status_t)))
+ struct snd_rawmidi_status status;
+ if (copy_from_user(&status, argp, sizeof(struct snd_rawmidi_status)))
return -EFAULT;
switch (status.stream) {
case SNDRV_RAWMIDI_STREAM_OUTPUT:
@@ -748,7 +760,7 @@ static long snd_rawmidi_ioctl(struct file *file, unsigned int cmd, unsigned long
}
if (err < 0)
return err;
- if (copy_to_user(argp, &status, sizeof(snd_rawmidi_status_t)))
+ if (copy_to_user(argp, &status, sizeof(struct snd_rawmidi_status)))
return -EFAULT;
return 0;
}
@@ -792,15 +804,13 @@ static long snd_rawmidi_ioctl(struct file *file, unsigned int cmd, unsigned long
return -ENOTTY;
}
-static int snd_rawmidi_control_ioctl(snd_card_t * card,
- snd_ctl_file_t * control,
+static int snd_rawmidi_control_ioctl(struct snd_card *card,
+ struct snd_ctl_file *control,
unsigned int cmd,
unsigned long arg)
{
void __user *argp = (void __user *)arg;
- unsigned int tmp;
- tmp = card->number * SNDRV_RAWMIDI_DEVICES;
switch (cmd) {
case SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE:
{
@@ -808,14 +818,16 @@ static int snd_rawmidi_control_ioctl(snd_card_t * card,
if (get_user(device, (int __user *)argp))
return -EFAULT;
+ down(&register_mutex);
device = device < 0 ? 0 : device + 1;
while (device < SNDRV_RAWMIDI_DEVICES) {
- if (snd_rawmidi_devices[tmp + device])
+ if (snd_rawmidi_search(card, device))
break;
device++;
}
if (device == SNDRV_RAWMIDI_DEVICES)
device = -1;
+ up(&register_mutex);
if (put_user(device, (int __user *)argp))
return -EFAULT;
return 0;
@@ -845,11 +857,12 @@ static int snd_rawmidi_control_ioctl(snd_card_t * card,
*
* Returns the size of read data, or a negative error code on failure.
*/
-int snd_rawmidi_receive(snd_rawmidi_substream_t * substream, const unsigned char *buffer, int count)
+int snd_rawmidi_receive(struct snd_rawmidi_substream *substream,
+ const unsigned char *buffer, int count)
{
unsigned long flags;
int result = 0, count1;
- snd_rawmidi_runtime_t *runtime = substream->runtime;
+ struct snd_rawmidi_runtime *runtime = substream->runtime;
if (runtime->buffer == NULL) {
snd_printd("snd_rawmidi_receive: input is not active!!!\n");
@@ -904,12 +917,12 @@ int snd_rawmidi_receive(snd_rawmidi_substream_t * substream, const unsigned char
return result;
}
-static long snd_rawmidi_kernel_read1(snd_rawmidi_substream_t *substream,
+static long snd_rawmidi_kernel_read1(struct snd_rawmidi_substream *substream,
unsigned char *buf, long count, int kernel)
{
unsigned long flags;
long result = 0, count1;
- snd_rawmidi_runtime_t *runtime = substream->runtime;
+ struct snd_rawmidi_runtime *runtime = substream->runtime;
while (count > 0 && runtime->avail) {
count1 = runtime->buffer_size - runtime->appl_ptr;
@@ -938,19 +951,21 @@ static long snd_rawmidi_kernel_read1(snd_rawmidi_substream_t *substream,
return result;
}
-long snd_rawmidi_kernel_read(snd_rawmidi_substream_t *substream, unsigned char *buf, long count)
+long snd_rawmidi_kernel_read(struct snd_rawmidi_substream *substream,
+ unsigned char *buf, long count)
{
snd_rawmidi_input_trigger(substream, 1);
return snd_rawmidi_kernel_read1(substream, buf, count, 1);
}
-static ssize_t snd_rawmidi_read(struct file *file, char __user *buf, size_t count, loff_t *offset)
+static ssize_t snd_rawmidi_read(struct file *file, char __user *buf, size_t count,
+ loff_t *offset)
{
long result;
int count1;
- snd_rawmidi_file_t *rfile;
- snd_rawmidi_substream_t *substream;
- snd_rawmidi_runtime_t *runtime;
+ struct snd_rawmidi_file *rfile;
+ struct snd_rawmidi_substream *substream;
+ struct snd_rawmidi_runtime *runtime;
rfile = file->private_data;
substream = rfile->input;
@@ -998,9 +1013,9 @@ static ssize_t snd_rawmidi_read(struct file *file, char __user *buf, size_t coun
*
* Returns 1 if the internal output buffer is empty, 0 if not.
*/
-int snd_rawmidi_transmit_empty(snd_rawmidi_substream_t * substream)
+int snd_rawmidi_transmit_empty(struct snd_rawmidi_substream *substream)
{
- snd_rawmidi_runtime_t *runtime = substream->runtime;
+ struct snd_rawmidi_runtime *runtime = substream->runtime;
int result;
unsigned long flags;
@@ -1028,11 +1043,12 @@ int snd_rawmidi_transmit_empty(snd_rawmidi_substream_t * substream)
*
* Returns the size of copied data, or a negative error code on failure.
*/
-int snd_rawmidi_transmit_peek(snd_rawmidi_substream_t * substream, unsigned char *buffer, int count)
+int snd_rawmidi_transmit_peek(struct snd_rawmidi_substream *substream,
+ unsigned char *buffer, int count)
{
unsigned long flags;
int result, count1;
- snd_rawmidi_runtime_t *runtime = substream->runtime;
+ struct snd_rawmidi_runtime *runtime = substream->runtime;
if (runtime->buffer == NULL) {
snd_printd("snd_rawmidi_transmit_peek: output is not active!!!\n");
@@ -1079,10 +1095,10 @@ int snd_rawmidi_transmit_peek(snd_rawmidi_substream_t * substream, unsigned char
*
* Returns the advanced size if successful, or a negative error code on failure.
*/
-int snd_rawmidi_transmit_ack(snd_rawmidi_substream_t * substream, int count)
+int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count)
{
unsigned long flags;
- snd_rawmidi_runtime_t *runtime = substream->runtime;
+ struct snd_rawmidi_runtime *runtime = substream->runtime;
if (runtime->buffer == NULL) {
snd_printd("snd_rawmidi_transmit_ack: output is not active!!!\n");
@@ -1112,7 +1128,8 @@ int snd_rawmidi_transmit_ack(snd_rawmidi_substream_t * substream, int count)
*
* Returns the copied size if successful, or a negative error code on failure.
*/
-int snd_rawmidi_transmit(snd_rawmidi_substream_t * substream, unsigned char *buffer, int count)
+int snd_rawmidi_transmit(struct snd_rawmidi_substream *substream,
+ unsigned char *buffer, int count)
{
count = snd_rawmidi_transmit_peek(substream, buffer, count);
if (count < 0)
@@ -1120,11 +1137,12 @@ int snd_rawmidi_transmit(snd_rawmidi_substream_t * substream, unsigned char *buf
return snd_rawmidi_transmit_ack(substream, count);
}
-static long snd_rawmidi_kernel_write1(snd_rawmidi_substream_t * substream, const unsigned char *buf, long count, int kernel)
+static long snd_rawmidi_kernel_write1(struct snd_rawmidi_substream *substream,
+ const unsigned char *buf, long count, int kernel)
{
unsigned long flags;
long count1, result;
- snd_rawmidi_runtime_t *runtime = substream->runtime;
+ struct snd_rawmidi_runtime *runtime = substream->runtime;
snd_assert(buf != NULL, return -EINVAL);
snd_assert(runtime->buffer != NULL, return -EINVAL);
@@ -1170,18 +1188,20 @@ static long snd_rawmidi_kernel_write1(snd_rawmidi_substream_t * substream, const
return result;
}
-long snd_rawmidi_kernel_write(snd_rawmidi_substream_t * substream, const unsigned char *buf, long count)
+long snd_rawmidi_kernel_write(struct snd_rawmidi_substream *substream,
+ const unsigned char *buf, long count)
{
return snd_rawmidi_kernel_write1(substream, buf, count, 1);
}
-static ssize_t snd_rawmidi_write(struct file *file, const char __user *buf, size_t count, loff_t *offset)
+static ssize_t snd_rawmidi_write(struct file *file, const char __user *buf,
+ size_t count, loff_t *offset)
{
long result, timeout;
int count1;
- snd_rawmidi_file_t *rfile;
- snd_rawmidi_runtime_t *runtime;
- snd_rawmidi_substream_t *substream;
+ struct snd_rawmidi_file *rfile;
+ struct snd_rawmidi_runtime *runtime;
+ struct snd_rawmidi_substream *substream;
rfile = file->private_data;
substream = rfile->output;
@@ -1246,8 +1266,8 @@ static ssize_t snd_rawmidi_write(struct file *file, const char __user *buf, size
static unsigned int snd_rawmidi_poll(struct file *file, poll_table * wait)
{
- snd_rawmidi_file_t *rfile;
- snd_rawmidi_runtime_t *runtime;
+ struct snd_rawmidi_file *rfile;
+ struct snd_rawmidi_runtime *runtime;
unsigned int mask;
rfile = file->private_data;
@@ -1284,12 +1304,12 @@ static unsigned int snd_rawmidi_poll(struct file *file, poll_table * wait)
*/
-static void snd_rawmidi_proc_info_read(snd_info_entry_t *entry,
- snd_info_buffer_t * buffer)
+static void snd_rawmidi_proc_info_read(struct snd_info_entry *entry,
+ struct snd_info_buffer *buffer)
{
- snd_rawmidi_t *rmidi;
- snd_rawmidi_substream_t *substream;
- snd_rawmidi_runtime_t *runtime;
+ struct snd_rawmidi *rmidi;
+ struct snd_rawmidi_substream *substream;
+ struct snd_rawmidi_runtime *runtime;
struct list_head *list;
rmidi = entry->private_data;
@@ -1297,7 +1317,7 @@ static void snd_rawmidi_proc_info_read(snd_info_entry_t *entry,
down(&rmidi->open_mutex);
if (rmidi->info_flags & SNDRV_RAWMIDI_INFO_OUTPUT) {
list_for_each(list, &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams) {
- substream = list_entry(list, snd_rawmidi_substream_t, list);
+ substream = list_entry(list, struct snd_rawmidi_substream, list);
snd_iprintf(buffer,
"Output %d\n"
" Tx bytes : %lu\n",
@@ -1317,7 +1337,7 @@ static void snd_rawmidi_proc_info_read(snd_info_entry_t *entry,
}
if (rmidi->info_flags & SNDRV_RAWMIDI_INFO_INPUT) {
list_for_each(list, &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) {
- substream = list_entry(list, snd_rawmidi_substream_t, list);
+ substream = list_entry(list, struct snd_rawmidi_substream, list);
snd_iprintf(buffer,
"Input %d\n"
" Rx bytes : %lu\n",
@@ -1354,25 +1374,21 @@ static struct file_operations snd_rawmidi_f_ops =
.compat_ioctl = snd_rawmidi_ioctl_compat,
};
-static snd_minor_t snd_rawmidi_reg =
-{
- .comment = "raw midi",
- .f_ops = &snd_rawmidi_f_ops,
-};
-
-static int snd_rawmidi_alloc_substreams(snd_rawmidi_t *rmidi,
- snd_rawmidi_str_t *stream,
+static int snd_rawmidi_alloc_substreams(struct snd_rawmidi *rmidi,
+ struct snd_rawmidi_str *stream,
int direction,
int count)
{
- snd_rawmidi_substream_t *substream;
+ struct snd_rawmidi_substream *substream;
int idx;
INIT_LIST_HEAD(&stream->substreams);
for (idx = 0; idx < count; idx++) {
substream = kzalloc(sizeof(*substream), GFP_KERNEL);
- if (substream == NULL)
+ if (substream == NULL) {
+ snd_printk(KERN_ERR "rawmidi: cannot allocate substream\n");
return -ENOMEM;
+ }
substream->stream = direction;
substream->number = idx;
substream->rmidi = rmidi;
@@ -1397,13 +1413,13 @@ static int snd_rawmidi_alloc_substreams(snd_rawmidi_t *rmidi,
*
* Returns zero if successful, or a negative error code on failure.
*/
-int snd_rawmidi_new(snd_card_t * card, char *id, int device,
+int snd_rawmidi_new(struct snd_card *card, char *id, int device,
int output_count, int input_count,
- snd_rawmidi_t ** rrawmidi)
+ struct snd_rawmidi ** rrawmidi)
{
- snd_rawmidi_t *rmidi;
+ struct snd_rawmidi *rmidi;
int err;
- static snd_device_ops_t ops = {
+ static struct snd_device_ops ops = {
.dev_free = snd_rawmidi_dev_free,
.dev_register = snd_rawmidi_dev_register,
.dev_disconnect = snd_rawmidi_dev_disconnect,
@@ -1414,19 +1430,27 @@ int snd_rawmidi_new(snd_card_t * card, char *id, int device,
*rrawmidi = NULL;
snd_assert(card != NULL, return -ENXIO);
rmidi = kzalloc(sizeof(*rmidi), GFP_KERNEL);
- if (rmidi == NULL)
+ if (rmidi == NULL) {
+ snd_printk(KERN_ERR "rawmidi: cannot allocate\n");
return -ENOMEM;
+ }
rmidi->card = card;
rmidi->device = device;
init_MUTEX(&rmidi->open_mutex);
init_waitqueue_head(&rmidi->open_wait);
if (id != NULL)
strlcpy(rmidi->id, id, sizeof(rmidi->id));
- if ((err = snd_rawmidi_alloc_substreams(rmidi, &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT], SNDRV_RAWMIDI_STREAM_INPUT, input_count)) < 0) {
+ if ((err = snd_rawmidi_alloc_substreams(rmidi,
+ &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT],
+ SNDRV_RAWMIDI_STREAM_INPUT,
+ input_count)) < 0) {
snd_rawmidi_free(rmidi);
return err;
}
- if ((err = snd_rawmidi_alloc_substreams(rmidi, &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT], SNDRV_RAWMIDI_STREAM_OUTPUT, output_count)) < 0) {
+ if ((err = snd_rawmidi_alloc_substreams(rmidi,
+ &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT],
+ SNDRV_RAWMIDI_STREAM_OUTPUT,
+ output_count)) < 0) {
snd_rawmidi_free(rmidi);
return err;
}
@@ -1438,18 +1462,18 @@ int snd_rawmidi_new(snd_card_t * card, char *id, int device,
return 0;
}
-static void snd_rawmidi_free_substreams(snd_rawmidi_str_t *stream)
+static void snd_rawmidi_free_substreams(struct snd_rawmidi_str *stream)
{
- snd_rawmidi_substream_t *substream;
+ struct snd_rawmidi_substream *substream;
while (!list_empty(&stream->substreams)) {
- substream = list_entry(stream->substreams.next, snd_rawmidi_substream_t, list);
+ substream = list_entry(stream->substreams.next, struct snd_rawmidi_substream, list);
list_del(&substream->list);
kfree(substream);
}
}
-static int snd_rawmidi_free(snd_rawmidi_t *rmidi)
+static int snd_rawmidi_free(struct snd_rawmidi *rmidi)
{
snd_assert(rmidi != NULL, return -ENXIO);
snd_rawmidi_free_substreams(&rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT]);
@@ -1460,49 +1484,48 @@ static int snd_rawmidi_free(snd_rawmidi_t *rmidi)
return 0;
}
-static int snd_rawmidi_dev_free(snd_device_t *device)
+static int snd_rawmidi_dev_free(struct snd_device *device)
{
- snd_rawmidi_t *rmidi = device->device_data;
+ struct snd_rawmidi *rmidi = device->device_data;
return snd_rawmidi_free(rmidi);
}
#if defined(CONFIG_SND_SEQUENCER) || (defined(MODULE) && defined(CONFIG_SND_SEQUENCER_MODULE))
-static void snd_rawmidi_dev_seq_free(snd_seq_device_t *device)
+static void snd_rawmidi_dev_seq_free(struct snd_seq_device *device)
{
- snd_rawmidi_t *rmidi = device->private_data;
+ struct snd_rawmidi *rmidi = device->private_data;
rmidi->seq_dev = NULL;
}
#endif
-static int snd_rawmidi_dev_register(snd_device_t *device)
+static int snd_rawmidi_dev_register(struct snd_device *device)
{
- int idx, err;
- snd_info_entry_t *entry;
+ int err;
+ struct snd_info_entry *entry;
char name[16];
- snd_rawmidi_t *rmidi = device->device_data;
+ struct snd_rawmidi *rmidi = device->device_data;
if (rmidi->device >= SNDRV_RAWMIDI_DEVICES)
return -ENOMEM;
down(&register_mutex);
- idx = (rmidi->card->number * SNDRV_RAWMIDI_DEVICES) + rmidi->device;
- if (snd_rawmidi_devices[idx] != NULL) {
+ if (snd_rawmidi_search(rmidi->card, rmidi->device)) {
up(&register_mutex);
return -EBUSY;
}
- snd_rawmidi_devices[idx] = rmidi;
+ list_add_tail(&rmidi->list, &snd_rawmidi_devices);
sprintf(name, "midiC%iD%i", rmidi->card->number, rmidi->device);
if ((err = snd_register_device(SNDRV_DEVICE_TYPE_RAWMIDI,
rmidi->card, rmidi->device,
- &snd_rawmidi_reg, name)) < 0) {
+ &snd_rawmidi_f_ops, rmidi, name)) < 0) {
snd_printk(KERN_ERR "unable to register rawmidi device %i:%i\n", rmidi->card->number, rmidi->device);
- snd_rawmidi_devices[idx] = NULL;
+ list_del(&rmidi->list);
up(&register_mutex);
return err;
}
if (rmidi->ops && rmidi->ops->dev_register &&
(err = rmidi->ops->dev_register(rmidi)) < 0) {
snd_unregister_device(SNDRV_DEVICE_TYPE_RAWMIDI, rmidi->card, rmidi->device);
- snd_rawmidi_devices[idx] = NULL;
+ list_del(&rmidi->list);
up(&register_mutex);
return err;
}
@@ -1510,7 +1533,8 @@ static int snd_rawmidi_dev_register(snd_device_t *device)
rmidi->ossreg = 0;
if ((int)rmidi->device == midi_map[rmidi->card->number]) {
if (snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIDI,
- rmidi->card, 0, &snd_rawmidi_reg, name) < 0) {
+ rmidi->card, 0, &snd_rawmidi_f_ops,
+ rmidi, name) < 0) {
snd_printk(KERN_ERR "unable to register OSS rawmidi device %i:%i\n", rmidi->card->number, 0);
} else {
rmidi->ossreg++;
@@ -1521,7 +1545,8 @@ static int snd_rawmidi_dev_register(snd_device_t *device)
}
if ((int)rmidi->device == amidi_map[rmidi->card->number]) {
if (snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIDI,
- rmidi->card, 1, &snd_rawmidi_reg, name) < 0) {
+ rmidi->card, 1, &snd_rawmidi_f_ops,
+ rmidi, name) < 0) {
snd_printk(KERN_ERR "unable to register OSS rawmidi device %i:%i\n", rmidi->card->number, 1);
} else {
rmidi->ossreg++;
@@ -1554,27 +1579,23 @@ static int snd_rawmidi_dev_register(snd_device_t *device)
return 0;
}
-static int snd_rawmidi_dev_disconnect(snd_device_t *device)
+static int snd_rawmidi_dev_disconnect(struct snd_device *device)
{
- snd_rawmidi_t *rmidi = device->device_data;
- int idx;
+ struct snd_rawmidi *rmidi = device->device_data;
down(&register_mutex);
- idx = (rmidi->card->number * SNDRV_RAWMIDI_DEVICES) + rmidi->device;
- snd_rawmidi_devices[idx] = NULL;
+ list_del_init(&rmidi->list);
up(&register_mutex);
return 0;
}
-static int snd_rawmidi_dev_unregister(snd_device_t *device)
+static int snd_rawmidi_dev_unregister(struct snd_device *device)
{
- int idx;
- snd_rawmidi_t *rmidi = device->device_data;
+ struct snd_rawmidi *rmidi = device->device_data;
snd_assert(rmidi != NULL, return -ENXIO);
down(&register_mutex);
- idx = (rmidi->card->number * SNDRV_RAWMIDI_DEVICES) + rmidi->device;
- snd_rawmidi_devices[idx] = NULL;
+ list_del(&rmidi->list);
if (rmidi->proc_entry) {
snd_info_unregister(rmidi->proc_entry);
rmidi->proc_entry = NULL;
@@ -1613,13 +1634,14 @@ static int snd_rawmidi_dev_unregister(snd_device_t *device)
*
* Sets the rawmidi operators for the given stream direction.
*/
-void snd_rawmidi_set_ops(snd_rawmidi_t *rmidi, int stream, snd_rawmidi_ops_t *ops)
+void snd_rawmidi_set_ops(struct snd_rawmidi *rmidi, int stream,
+ struct snd_rawmidi_ops *ops)
{
struct list_head *list;
- snd_rawmidi_substream_t *substream;
+ struct snd_rawmidi_substream *substream;
list_for_each(list, &rmidi->streams[stream].substreams) {
- substream = list_entry(list, snd_rawmidi_substream_t, list);
+ substream = list_entry(list, struct snd_rawmidi_substream, list);
substream->ops = ops;
}
}
@@ -1672,7 +1694,6 @@ EXPORT_SYMBOL(snd_rawmidi_transmit_ack);
EXPORT_SYMBOL(snd_rawmidi_transmit);
EXPORT_SYMBOL(snd_rawmidi_new);
EXPORT_SYMBOL(snd_rawmidi_set_ops);
-EXPORT_SYMBOL(snd_rawmidi_info);
EXPORT_SYMBOL(snd_rawmidi_info_select);
EXPORT_SYMBOL(snd_rawmidi_kernel_open);
EXPORT_SYMBOL(snd_rawmidi_kernel_release);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.