diff options
Diffstat (limited to 'drivers/staging/goldfish/goldfish_audio.c')
| -rw-r--r-- | drivers/staging/goldfish/goldfish_audio.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/drivers/staging/goldfish/goldfish_audio.c b/drivers/staging/goldfish/goldfish_audio.c index d3bed21f4072..f96dcec740ae 100644 --- a/drivers/staging/goldfish/goldfish_audio.c +++ b/drivers/staging/goldfish/goldfish_audio.c @@ -1,4 +1,5 @@ -/* drivers/misc/goldfish_audio.c +/* + * drivers/misc/goldfish_audio.c * * Copyright (C) 2007 Google, Inc. * Copyright (C) 2012 Intel, Inc. @@ -47,10 +48,11 @@ struct goldfish_audio { int read_supported; /* true if we have audio input support */ }; -/* We will allocate two read buffers and two write buffers. - Having two read buffers facilitate stereo -> mono conversion. - Having two write buffers facilitate interleaved IO. -*/ +/* + * We will allocate two read buffers and two write buffers. + * Having two read buffers facilitate stereo -> mono conversion. + * Having two write buffers facilitate interleaved IO. + */ #define READ_BUFFER_SIZE 16384 #define WRITE_BUFFER_SIZE 16384 #define COMBINED_BUFFER_SIZE ((2 * READ_BUFFER_SIZE) + \ @@ -59,8 +61,10 @@ struct goldfish_audio { #define AUDIO_READ(data, addr) (readl(data->reg_base + addr)) #define AUDIO_WRITE(data, addr, x) (writel(x, data->reg_base + addr)) -/* temporary variable used between goldfish_audio_probe() and - goldfish_audio_open() */ +/* + * temporary variable used between goldfish_audio_probe() and + * goldfish_audio_open() + */ static struct goldfish_audio *audio_data; enum { @@ -161,8 +165,10 @@ static ssize_t goldfish_audio_write(struct file *fp, const char __user *buf, } spin_lock_irqsave(&data->lock, irq_flags); - /* clear the buffer empty flag, and signal the emulator - * to start writing the buffer */ + /* + * clear the buffer empty flag, and signal the emulator + * to start writing the buffer + */ if (kbuf == data->write_buffer1) { data->buffer_status &= ~AUDIO_INT_WRITE_BUFFER_1_EMPTY; AUDIO_WRITE(data, AUDIO_WRITE_BUFFER_1, copy); @@ -225,8 +231,10 @@ static irqreturn_t goldfish_audio_interrupt(int irq, void *dev_id) /* read buffer status flags */ status = AUDIO_READ(data, AUDIO_INT_STATUS); status &= AUDIO_INT_MASK; - /* if buffers are newly empty, wake up blocked - goldfish_audio_write() call */ + /* + * if buffers are newly empty, wake up blocked + * goldfish_audio_write() call + */ if (status) { data->buffer_status = status; wake_up(&data->wait); |