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Diffstat (limited to 'sound/drivers/serial-u16550.c')
-rw-r--r--sound/drivers/serial-u16550.c122
1 files changed, 78 insertions, 44 deletions
diff --git a/sound/drivers/serial-u16550.c b/sound/drivers/serial-u16550.c
index 1ed58df4267..29676d800ca 100644
--- a/sound/drivers/serial-u16550.c
+++ b/sound/drivers/serial-u16550.c
@@ -33,6 +33,8 @@
#include <sound/driver.h>
#include <linux/init.h>
#include <linux/interrupt.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/ioport.h>
#include <linux/moduleparam.h>
@@ -116,10 +118,10 @@ MODULE_PARM_DESC(adaptor, "Type of adaptor.");
#define SERIAL_MODE_OUTPUT_TRIGGERED (1 << 3)
typedef struct _snd_uart16550 {
- snd_card_t *card;
- snd_rawmidi_t *rmidi;
- snd_rawmidi_substream_t *midi_output[SNDRV_SERIAL_MAX_OUTS];
- snd_rawmidi_substream_t *midi_input[SNDRV_SERIAL_MAX_INS];
+ struct snd_card *card;
+ struct snd_rawmidi *rmidi;
+ struct snd_rawmidi_substream *midi_output[SNDRV_SERIAL_MAX_OUTS];
+ struct snd_rawmidi_substream *midi_input[SNDRV_SERIAL_MAX_INS];
int filemode; //open status of file
@@ -166,7 +168,7 @@ typedef struct _snd_uart16550 {
} snd_uart16550_t;
-static snd_card_t *snd_serial_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
+static struct platform_device *devices[SNDRV_CARDS];
static inline void snd_uart16550_add_timer(snd_uart16550_t *uart)
{
@@ -509,7 +511,7 @@ static void snd_uart16550_do_close(snd_uart16550_t * uart)
}
}
-static int snd_uart16550_input_open(snd_rawmidi_substream_t * substream)
+static int snd_uart16550_input_open(struct snd_rawmidi_substream *substream)
{
unsigned long flags;
snd_uart16550_t *uart = substream->rmidi->private_data;
@@ -523,7 +525,7 @@ static int snd_uart16550_input_open(snd_rawmidi_substream_t * substream)
return 0;
}
-static int snd_uart16550_input_close(snd_rawmidi_substream_t * substream)
+static int snd_uart16550_input_close(struct snd_rawmidi_substream *substream)
{
unsigned long flags;
snd_uart16550_t *uart = substream->rmidi->private_data;
@@ -537,7 +539,7 @@ static int snd_uart16550_input_close(snd_rawmidi_substream_t * substream)
return 0;
}
-static void snd_uart16550_input_trigger(snd_rawmidi_substream_t * substream, int up)
+static void snd_uart16550_input_trigger(struct snd_rawmidi_substream *substream, int up)
{
unsigned long flags;
snd_uart16550_t *uart = substream->rmidi->private_data;
@@ -551,7 +553,7 @@ static void snd_uart16550_input_trigger(snd_rawmidi_substream_t * substream, int
spin_unlock_irqrestore(&uart->open_lock, flags);
}
-static int snd_uart16550_output_open(snd_rawmidi_substream_t * substream)
+static int snd_uart16550_output_open(struct snd_rawmidi_substream *substream)
{
unsigned long flags;
snd_uart16550_t *uart = substream->rmidi->private_data;
@@ -565,7 +567,7 @@ static int snd_uart16550_output_open(snd_rawmidi_substream_t * substream)
return 0;
};
-static int snd_uart16550_output_close(snd_rawmidi_substream_t * substream)
+static int snd_uart16550_output_close(struct snd_rawmidi_substream *substream)
{
unsigned long flags;
snd_uart16550_t *uart = substream->rmidi->private_data;
@@ -603,7 +605,7 @@ static inline int snd_uart16550_write_buffer(snd_uart16550_t *uart, unsigned cha
return 0;
}
-static int snd_uart16550_output_byte(snd_uart16550_t *uart, snd_rawmidi_substream_t * substream, unsigned char midi_byte)
+static int snd_uart16550_output_byte(snd_uart16550_t *uart, struct snd_rawmidi_substream *substream, unsigned char midi_byte)
{
if (uart->buff_in_count == 0 /* Buffer empty? */
&& ((uart->adaptor != SNDRV_SERIAL_MS124W_SA &&
@@ -636,7 +638,7 @@ static int snd_uart16550_output_byte(snd_uart16550_t *uart, snd_rawmidi_substrea
return 1;
}
-static void snd_uart16550_output_write(snd_rawmidi_substream_t * substream)
+static void snd_uart16550_output_write(struct snd_rawmidi_substream *substream)
{
unsigned long flags;
unsigned char midi_byte, addr_byte;
@@ -715,7 +717,7 @@ static void snd_uart16550_output_write(snd_rawmidi_substream_t * substream)
spin_unlock_irqrestore(&uart->open_lock, flags);
}
-static void snd_uart16550_output_trigger(snd_rawmidi_substream_t * substream, int up)
+static void snd_uart16550_output_trigger(struct snd_rawmidi_substream *substream, int up)
{
unsigned long flags;
snd_uart16550_t *uart = substream->rmidi->private_data;
@@ -731,14 +733,14 @@ static void snd_uart16550_output_trigger(snd_rawmidi_substream_t * substream, in
snd_uart16550_output_write(substream);
}
-static snd_rawmidi_ops_t snd_uart16550_output =
+static struct snd_rawmidi_ops snd_uart16550_output =
{
.open = snd_uart16550_output_open,
.close = snd_uart16550_output_close,
.trigger = snd_uart16550_output_trigger,
};
-static snd_rawmidi_ops_t snd_uart16550_input =
+static struct snd_rawmidi_ops snd_uart16550_input =
{
.open = snd_uart16550_input_open,
.close = snd_uart16550_input_close,
@@ -754,13 +756,13 @@ static int snd_uart16550_free(snd_uart16550_t *uart)
return 0;
};
-static int snd_uart16550_dev_free(snd_device_t *device)
+static int snd_uart16550_dev_free(struct snd_device *device)
{
snd_uart16550_t *uart = device->device_data;
return snd_uart16550_free(uart);
}
-static int __init snd_uart16550_create(snd_card_t * card,
+static int __init snd_uart16550_create(struct snd_card *card,
unsigned long iobase,
int irq,
unsigned int speed,
@@ -769,7 +771,7 @@ static int __init snd_uart16550_create(snd_card_t * card,
int droponfull,
snd_uart16550_t **ruart)
{
- static snd_device_ops_t ops = {
+ static struct snd_device_ops ops = {
.dev_free = snd_uart16550_dev_free,
};
snd_uart16550_t *uart;
@@ -838,19 +840,19 @@ static int __init snd_uart16550_create(snd_card_t * card,
return 0;
}
-static void __init snd_uart16550_substreams(snd_rawmidi_str_t *stream)
+static void __init snd_uart16550_substreams(struct snd_rawmidi_str *stream)
{
struct list_head *list;
list_for_each(list, &stream->substreams) {
- snd_rawmidi_substream_t *substream = list_entry(list, snd_rawmidi_substream_t, list);
+ struct snd_rawmidi_substream *substream = list_entry(list, struct snd_rawmidi_substream, list);
sprintf(substream->name, "Serial MIDI %d", substream->number + 1);
}
}
-static int __init snd_uart16550_rmidi(snd_uart16550_t *uart, int device, int outs, int ins, snd_rawmidi_t **rmidi)
+static int __init snd_uart16550_rmidi(snd_uart16550_t *uart, int device, int outs, int ins, struct snd_rawmidi **rmidi)
{
- snd_rawmidi_t *rrawmidi;
+ struct snd_rawmidi *rrawmidi;
int err;
if ((err = snd_rawmidi_new(uart->card, "UART Serial MIDI", device, outs, ins, &rrawmidi)) < 0)
@@ -869,14 +871,12 @@ static int __init snd_uart16550_rmidi(snd_uart16550_t *uart, int device, int out
return 0;
}
-static int __init snd_serial_probe(int dev)
+static int __init snd_serial_probe(struct platform_device *devptr)
{
- snd_card_t *card;
+ struct snd_card *card;
snd_uart16550_t *uart;
int err;
-
- if (!enable[dev])
- return -ENOENT;
+ int dev = devptr->id;
switch (adaptor[dev]) {
case SNDRV_SERIAL_SOUNDCANVAS:
@@ -942,13 +942,12 @@ static int __init snd_serial_probe(int dev)
adaptor_names[uart->adaptor],
uart->drop_on_full);
- if ((err = snd_card_set_generic_dev(card)) < 0)
- goto _err;
+ snd_card_set_dev(card, &devptr->dev);
if ((err = snd_card_register(card)) < 0)
goto _err;
- snd_serial_cards[dev] = card;
+ platform_set_drvdata(devptr, card);
return 0;
_err:
@@ -956,33 +955,68 @@ static int __init snd_serial_probe(int dev)
return err;
}
+static int snd_serial_remove(struct platform_device *devptr)
+{
+ snd_card_free(platform_get_drvdata(devptr));
+ platform_set_drvdata(devptr, NULL);
+ return 0;
+}
+
+#define SND_SERIAL_DRIVER "snd_serial_u16550"
+
+static struct platform_driver snd_serial_driver = {
+ .probe = snd_serial_probe,
+ .remove = snd_serial_remove,
+ .driver = {
+ .name = SND_SERIAL_DRIVER
+ },
+};
+
+static void __init_or_module snd_serial_unregister_all(void)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(devices); ++i)
+ platform_device_unregister(devices[i]);
+ platform_driver_unregister(&snd_serial_driver);
+}
+
static int __init alsa_card_serial_init(void)
{
- int dev = 0;
- int cards = 0;
+ int i, cards, err;
- for (dev = 0; dev < SNDRV_CARDS; dev++) {
- if (snd_serial_probe(dev) == 0)
- cards++;
- }
+ if ((err = platform_driver_register(&snd_serial_driver)) < 0)
+ return err;
- if (cards == 0) {
+ cards = 0;
+ for (i = 0; i < SNDRV_CARDS && enable[i]; i++) {
+ struct platform_device *device;
+ device = platform_device_register_simple(SND_SERIAL_DRIVER,
+ i, NULL, 0);
+ if (IS_ERR(device)) {
+ err = PTR_ERR(device);
+ goto errout;
+ }
+ devices[i] = device;
+ cards++;
+ }
+ if (! cards) {
#ifdef MODULE
printk(KERN_ERR "serial midi soundcard not found or device busy\n");
#endif
- return -ENODEV;
+ err = -ENODEV;
+ goto errout;
}
return 0;
+
+ errout:
+ snd_serial_unregister_all();
+ return err;
}
static void __exit alsa_card_serial_exit(void)
{
- int dev;
-
- for (dev = 0; dev < SNDRV_CARDS; dev++) {
- if (snd_serial_cards[dev] != NULL)
- snd_card_free(snd_serial_cards[dev]);
- }
+ snd_serial_unregister_all();
}
module_init(alsa_card_serial_init)
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-01 11:08:56 +0000