summaryrefslogtreecommitdiffstats
path: root/sound/drivers/mpu401/mpu401_uart.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/drivers/mpu401/mpu401_uart.c')
-rw-r--r--sound/drivers/mpu401/mpu401_uart.c78
1 files changed, 40 insertions, 38 deletions
diff --git a/sound/drivers/mpu401/mpu401_uart.c b/sound/drivers/mpu401/mpu401_uart.c
index bdeb2c0..8687ae3 100644
--- a/sound/drivers/mpu401/mpu401_uart.c
+++ b/sound/drivers/mpu401/mpu401_uart.c
@@ -43,8 +43,8 @@ MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
MODULE_DESCRIPTION("Routines for control of MPU-401 in UART mode");
MODULE_LICENSE("GPL");
-static void snd_mpu401_uart_input_read(mpu401_t * mpu);
-static void snd_mpu401_uart_output_write(mpu401_t * mpu);
+static void snd_mpu401_uart_input_read(struct snd_mpu401 * mpu);
+static void snd_mpu401_uart_output_write(struct snd_mpu401 * mpu);
/*
@@ -58,28 +58,28 @@ static void snd_mpu401_uart_output_write(mpu401_t * mpu);
#define MPU401_ACK 0xfe
/* Build in lowlevel io */
-static void mpu401_write_port(mpu401_t *mpu, unsigned char data, unsigned long addr)
+static void mpu401_write_port(struct snd_mpu401 *mpu, unsigned char data, unsigned long addr)
{
outb(data, addr);
}
-static unsigned char mpu401_read_port(mpu401_t *mpu, unsigned long addr)
+static unsigned char mpu401_read_port(struct snd_mpu401 *mpu, unsigned long addr)
{
return inb(addr);
}
-static void mpu401_write_mmio(mpu401_t *mpu, unsigned char data, unsigned long addr)
+static void mpu401_write_mmio(struct snd_mpu401 *mpu, unsigned char data, unsigned long addr)
{
writeb(data, (void __iomem *)addr);
}
-static unsigned char mpu401_read_mmio(mpu401_t *mpu, unsigned long addr)
+static unsigned char mpu401_read_mmio(struct snd_mpu401 *mpu, unsigned long addr)
{
return readb((void __iomem *)addr);
}
/* */
-static void snd_mpu401_uart_clear_rx(mpu401_t *mpu)
+static void snd_mpu401_uart_clear_rx(struct snd_mpu401 *mpu)
{
int timeout = 100000;
for (; timeout > 0 && snd_mpu401_input_avail(mpu); timeout--)
@@ -90,7 +90,7 @@ static void snd_mpu401_uart_clear_rx(mpu401_t *mpu)
#endif
}
-static void _snd_mpu401_uart_interrupt(mpu401_t *mpu)
+static void _snd_mpu401_uart_interrupt(struct snd_mpu401 *mpu)
{
spin_lock(&mpu->input_lock);
if (test_bit(MPU401_MODE_BIT_INPUT, &mpu->mode)) {
@@ -118,7 +118,7 @@ static void _snd_mpu401_uart_interrupt(mpu401_t *mpu)
*/
irqreturn_t snd_mpu401_uart_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
- mpu401_t *mpu = dev_id;
+ struct snd_mpu401 *mpu = dev_id;
if (mpu == NULL)
return IRQ_NONE;
@@ -132,13 +132,14 @@ irqreturn_t snd_mpu401_uart_interrupt(int irq, void *dev_id, struct pt_regs *reg
*/
static void snd_mpu401_uart_timer(unsigned long data)
{
- mpu401_t *mpu = (mpu401_t *)data;
+ struct snd_mpu401 *mpu = (struct snd_mpu401 *)data;
+ unsigned long flags;
- spin_lock(&mpu->timer_lock);
+ spin_lock_irqsave(&mpu->timer_lock, flags);
/*mpu->mode |= MPU401_MODE_TIMER;*/
mpu->timer.expires = 1 + jiffies;
add_timer(&mpu->timer);
- spin_unlock(&mpu->timer_lock);
+ spin_unlock_irqrestore(&mpu->timer_lock, flags);
if (mpu->rmidi)
_snd_mpu401_uart_interrupt(mpu);
}
@@ -146,7 +147,7 @@ static void snd_mpu401_uart_timer(unsigned long data)
/*
* initialize the timer callback if not programmed yet
*/
-static void snd_mpu401_uart_add_timer (mpu401_t *mpu, int input)
+static void snd_mpu401_uart_add_timer (struct snd_mpu401 *mpu, int input)
{
unsigned long flags;
@@ -165,7 +166,7 @@ static void snd_mpu401_uart_add_timer (mpu401_t *mpu, int input)
/*
* remove the timer callback if still active
*/
-static void snd_mpu401_uart_remove_timer (mpu401_t *mpu, int input)
+static void snd_mpu401_uart_remove_timer (struct snd_mpu401 *mpu, int input)
{
unsigned long flags;
@@ -182,7 +183,7 @@ static void snd_mpu401_uart_remove_timer (mpu401_t *mpu, int input)
*/
-static void snd_mpu401_uart_cmd(mpu401_t * mpu, unsigned char cmd, int ack)
+static void snd_mpu401_uart_cmd(struct snd_mpu401 * mpu, unsigned char cmd, int ack)
{
unsigned long flags;
int timeout, ok;
@@ -225,9 +226,9 @@ static void snd_mpu401_uart_cmd(mpu401_t * mpu, unsigned char cmd, int ack)
/*
* input/output open/close - protected by open_mutex in rawmidi.c
*/
-static int snd_mpu401_uart_input_open(snd_rawmidi_substream_t * substream)
+static int snd_mpu401_uart_input_open(struct snd_rawmidi_substream *substream)
{
- mpu401_t *mpu;
+ struct snd_mpu401 *mpu;
int err;
mpu = substream->rmidi->private_data;
@@ -242,9 +243,9 @@ static int snd_mpu401_uart_input_open(snd_rawmidi_substream_t * substream)
return 0;
}
-static int snd_mpu401_uart_output_open(snd_rawmidi_substream_t * substream)
+static int snd_mpu401_uart_output_open(struct snd_rawmidi_substream *substream)
{
- mpu401_t *mpu;
+ struct snd_mpu401 *mpu;
int err;
mpu = substream->rmidi->private_data;
@@ -259,9 +260,9 @@ static int snd_mpu401_uart_output_open(snd_rawmidi_substream_t * substream)
return 0;
}
-static int snd_mpu401_uart_input_close(snd_rawmidi_substream_t * substream)
+static int snd_mpu401_uart_input_close(struct snd_rawmidi_substream *substream)
{
- mpu401_t *mpu;
+ struct snd_mpu401 *mpu;
mpu = substream->rmidi->private_data;
clear_bit(MPU401_MODE_BIT_INPUT, &mpu->mode);
@@ -273,9 +274,9 @@ static int snd_mpu401_uart_input_close(snd_rawmidi_substream_t * substream)
return 0;
}
-static int snd_mpu401_uart_output_close(snd_rawmidi_substream_t * substream)
+static int snd_mpu401_uart_output_close(struct snd_rawmidi_substream *substream)
{
- mpu401_t *mpu;
+ struct snd_mpu401 *mpu;
mpu = substream->rmidi->private_data;
clear_bit(MPU401_MODE_BIT_OUTPUT, &mpu->mode);
@@ -290,10 +291,10 @@ static int snd_mpu401_uart_output_close(snd_rawmidi_substream_t * substream)
/*
* trigger input callback
*/
-static void snd_mpu401_uart_input_trigger(snd_rawmidi_substream_t * substream, int up)
+static void snd_mpu401_uart_input_trigger(struct snd_rawmidi_substream *substream, int up)
{
unsigned long flags;
- mpu401_t *mpu;
+ struct snd_mpu401 *mpu;
int max = 64;
mpu = substream->rmidi->private_data;
@@ -321,7 +322,7 @@ static void snd_mpu401_uart_input_trigger(snd_rawmidi_substream_t * substream, i
* transfer input pending data
* call with input_lock spinlock held
*/
-static void snd_mpu401_uart_input_read(mpu401_t * mpu)
+static void snd_mpu401_uart_input_read(struct snd_mpu401 * mpu)
{
int max = 128;
unsigned char byte;
@@ -349,7 +350,7 @@ static void snd_mpu401_uart_input_read(mpu401_t * mpu)
* write output pending bytes
* call with output_lock spinlock held
*/
-static void snd_mpu401_uart_output_write(mpu401_t * mpu)
+static void snd_mpu401_uart_output_write(struct snd_mpu401 * mpu)
{
unsigned char byte;
int max = 256, timeout;
@@ -375,10 +376,10 @@ static void snd_mpu401_uart_output_write(mpu401_t * mpu)
/*
* output trigger callback
*/
-static void snd_mpu401_uart_output_trigger(snd_rawmidi_substream_t * substream, int up)
+static void snd_mpu401_uart_output_trigger(struct snd_rawmidi_substream *substream, int up)
{
unsigned long flags;
- mpu401_t *mpu;
+ struct snd_mpu401 *mpu;
mpu = substream->rmidi->private_data;
if (up) {
@@ -404,23 +405,23 @@ static void snd_mpu401_uart_output_trigger(snd_rawmidi_substream_t * substream,
*/
-static snd_rawmidi_ops_t snd_mpu401_uart_output =
+static struct snd_rawmidi_ops snd_mpu401_uart_output =
{
.open = snd_mpu401_uart_output_open,
.close = snd_mpu401_uart_output_close,
.trigger = snd_mpu401_uart_output_trigger,
};
-static snd_rawmidi_ops_t snd_mpu401_uart_input =
+static struct snd_rawmidi_ops snd_mpu401_uart_input =
{
.open = snd_mpu401_uart_input_open,
.close = snd_mpu401_uart_input_close,
.trigger = snd_mpu401_uart_input_trigger,
};
-static void snd_mpu401_uart_free(snd_rawmidi_t *rmidi)
+static void snd_mpu401_uart_free(struct snd_rawmidi *rmidi)
{
- mpu401_t *mpu = rmidi->private_data;
+ struct snd_mpu401 *mpu = rmidi->private_data;
if (mpu->irq_flags && mpu->irq >= 0)
free_irq(mpu->irq, (void *) mpu);
release_and_free_resource(mpu->res);
@@ -442,18 +443,18 @@ static void snd_mpu401_uart_free(snd_rawmidi_t *rmidi)
*
* Note that the rawmidi instance is returned on the rrawmidi argument,
* not the mpu401 instance itself. To access to the mpu401 instance,
- * cast from rawmidi->private_data (with mpu401_t magic-cast).
+ * cast from rawmidi->private_data (with struct snd_mpu401 magic-cast).
*
* Returns zero if successful, or a negative error code.
*/
-int snd_mpu401_uart_new(snd_card_t * card, int device,
+int snd_mpu401_uart_new(struct snd_card *card, int device,
unsigned short hardware,
unsigned long port, int integrated,
int irq, int irq_flags,
- snd_rawmidi_t ** rrawmidi)
+ struct snd_rawmidi ** rrawmidi)
{
- mpu401_t *mpu;
- snd_rawmidi_t *rmidi;
+ struct snd_mpu401 *mpu;
+ struct snd_rawmidi *rmidi;
int err;
if (rrawmidi)
@@ -462,6 +463,7 @@ int snd_mpu401_uart_new(snd_card_t * card, int device,
return err;
mpu = kzalloc(sizeof(*mpu), GFP_KERNEL);
if (mpu == NULL) {
+ snd_printk(KERN_ERR "mpu401_uart: cannot allocate\n");
snd_device_free(card, rmidi);
return -ENOMEM;
}
OpenPOWER on IntegriCloud