diff options
Diffstat (limited to 'sound/drivers/mpu401/mpu401_uart.c')
| -rw-r--r-- | sound/drivers/mpu401/mpu401_uart.c | 78 |
1 files changed, 40 insertions, 38 deletions
diff --git a/sound/drivers/mpu401/mpu401_uart.c b/sound/drivers/mpu401/mpu401_uart.c index bdeb2c00dac5..8687ae3c66b8 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; } |