mirror of https://gitee.com/openkylin/linux.git
[PATCH] uml: audio driver formatting
Whitespace and style fixes. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jeff Dike
Linus Torvalds
parent
b612e475e7
commit
d471c0fca7
|
|
@ -15,11 +15,11 @@
|
|||
#include "os.h"
|
||||
|
||||
struct hostaudio_state {
|
||||
int fd;
|
||||
int fd;
|
||||
};
|
||||
|
||||
struct hostmixer_state {
|
||||
int fd;
|
||||
int fd;
|
||||
};
|
||||
|
||||
#define HOSTAUDIO_DEV_DSP "/dev/sound/dsp"
|
||||
|
|
@ -72,12 +72,12 @@ MODULE_PARM_DESC(mixer, MIXER_HELP);
|
|||
static ssize_t hostaudio_read(struct file *file, char __user *buffer,
|
||||
size_t count, loff_t *ppos)
|
||||
{
|
||||
struct hostaudio_state *state = file->private_data;
|
||||
struct hostaudio_state *state = file->private_data;
|
||||
void *kbuf;
|
||||
int err;
|
||||
|
||||
#ifdef DEBUG
|
||||
printk("hostaudio: read called, count = %d\n", count);
|
||||
printk("hostaudio: read called, count = %d\n", count);
|
||||
#endif
|
||||
|
||||
kbuf = kmalloc(count, GFP_KERNEL);
|
||||
|
|
@ -91,7 +91,7 @@ static ssize_t hostaudio_read(struct file *file, char __user *buffer,
|
|||
if(copy_to_user(buffer, kbuf, err))
|
||||
err = -EFAULT;
|
||||
|
||||
out:
|
||||
out:
|
||||
kfree(kbuf);
|
||||
return(err);
|
||||
}
|
||||
|
|
@ -99,12 +99,12 @@ static ssize_t hostaudio_read(struct file *file, char __user *buffer,
|
|||
static ssize_t hostaudio_write(struct file *file, const char __user *buffer,
|
||||
size_t count, loff_t *ppos)
|
||||
{
|
||||
struct hostaudio_state *state = file->private_data;
|
||||
struct hostaudio_state *state = file->private_data;
|
||||
void *kbuf;
|
||||
int err;
|
||||
|
||||
#ifdef DEBUG
|
||||
printk("hostaudio: write called, count = %d\n", count);
|
||||
printk("hostaudio: write called, count = %d\n", count);
|
||||
#endif
|
||||
|
||||
kbuf = kmalloc(count, GFP_KERNEL);
|
||||
|
|
@ -128,24 +128,24 @@ static ssize_t hostaudio_write(struct file *file, const char __user *buffer,
|
|||
static unsigned int hostaudio_poll(struct file *file,
|
||||
struct poll_table_struct *wait)
|
||||
{
|
||||
unsigned int mask = 0;
|
||||
unsigned int mask = 0;
|
||||
|
||||
#ifdef DEBUG
|
||||
printk("hostaudio: poll called (unimplemented)\n");
|
||||
printk("hostaudio: poll called (unimplemented)\n");
|
||||
#endif
|
||||
|
||||
return(mask);
|
||||
return(mask);
|
||||
}
|
||||
|
||||
static int hostaudio_ioctl(struct inode *inode, struct file *file,
|
||||
unsigned int cmd, unsigned long arg)
|
||||
{
|
||||
struct hostaudio_state *state = file->private_data;
|
||||
struct hostaudio_state *state = file->private_data;
|
||||
unsigned long data = 0;
|
||||
int err;
|
||||
|
||||
#ifdef DEBUG
|
||||
printk("hostaudio: ioctl called, cmd = %u\n", cmd);
|
||||
printk("hostaudio: ioctl called, cmd = %u\n", cmd);
|
||||
#endif
|
||||
switch(cmd){
|
||||
case SNDCTL_DSP_SPEED:
|
||||
|
|
@ -182,42 +182,40 @@ static int hostaudio_ioctl(struct inode *inode, struct file *file,
|
|||
|
||||
static int hostaudio_open(struct inode *inode, struct file *file)
|
||||
{
|
||||
struct hostaudio_state *state;
|
||||
int r = 0, w = 0;
|
||||
int ret;
|
||||
struct hostaudio_state *state;
|
||||
int r = 0, w = 0;
|
||||
int ret;
|
||||
|
||||
#ifdef DEBUG
|
||||
printk("hostaudio: open called (host: %s)\n", dsp);
|
||||
printk("hostaudio: open called (host: %s)\n", dsp);
|
||||
#endif
|
||||
|
||||
state = kmalloc(sizeof(struct hostaudio_state), GFP_KERNEL);
|
||||
if(state == NULL)
|
||||
state = kmalloc(sizeof(struct hostaudio_state), GFP_KERNEL);
|
||||
if(state == NULL)
|
||||
return(-ENOMEM);
|
||||
|
||||
if(file->f_mode & FMODE_READ) r = 1;
|
||||
if(file->f_mode & FMODE_WRITE) w = 1;
|
||||
if(file->f_mode & FMODE_READ) r = 1;
|
||||
if(file->f_mode & FMODE_WRITE) w = 1;
|
||||
|
||||
ret = os_open_file(dsp, of_set_rw(OPENFLAGS(), r, w), 0);
|
||||
if(ret < 0){
|
||||
if(ret < 0){
|
||||
kfree(state);
|
||||
return(ret);
|
||||
}
|
||||
|
||||
}
|
||||
state->fd = ret;
|
||||
file->private_data = state;
|
||||
return(0);
|
||||
file->private_data = state;
|
||||
return(0);
|
||||
}
|
||||
|
||||
static int hostaudio_release(struct inode *inode, struct file *file)
|
||||
{
|
||||
struct hostaudio_state *state = file->private_data;
|
||||
struct hostaudio_state *state = file->private_data;
|
||||
|
||||
#ifdef DEBUG
|
||||
printk("hostaudio: release called\n");
|
||||
printk("hostaudio: release called\n");
|
||||
#endif
|
||||
|
||||
os_close_file(state->fd);
|
||||
kfree(state);
|
||||
os_close_file(state->fd);
|
||||
kfree(state);
|
||||
|
||||
return(0);
|
||||
}
|
||||
|
|
@ -227,10 +225,10 @@ static int hostaudio_release(struct inode *inode, struct file *file)
|
|||
static int hostmixer_ioctl_mixdev(struct inode *inode, struct file *file,
|
||||
unsigned int cmd, unsigned long arg)
|
||||
{
|
||||
struct hostmixer_state *state = file->private_data;
|
||||
struct hostmixer_state *state = file->private_data;
|
||||
|
||||
#ifdef DEBUG
|
||||
printk("hostmixer: ioctl called\n");
|
||||
printk("hostmixer: ioctl called\n");
|
||||
#endif
|
||||
|
||||
return(os_ioctl_generic(state->fd, cmd, arg));
|
||||
|
|
@ -238,68 +236,67 @@ static int hostmixer_ioctl_mixdev(struct inode *inode, struct file *file,
|
|||
|
||||
static int hostmixer_open_mixdev(struct inode *inode, struct file *file)
|
||||
{
|
||||
struct hostmixer_state *state;
|
||||
int r = 0, w = 0;
|
||||
int ret;
|
||||
struct hostmixer_state *state;
|
||||
int r = 0, w = 0;
|
||||
int ret;
|
||||
|
||||
#ifdef DEBUG
|
||||
printk("hostmixer: open called (host: %s)\n", mixer);
|
||||
printk("hostmixer: open called (host: %s)\n", mixer);
|
||||
#endif
|
||||
|
||||
state = kmalloc(sizeof(struct hostmixer_state), GFP_KERNEL);
|
||||
if(state == NULL) return(-ENOMEM);
|
||||
state = kmalloc(sizeof(struct hostmixer_state), GFP_KERNEL);
|
||||
if(state == NULL) return(-ENOMEM);
|
||||
|
||||
if(file->f_mode & FMODE_READ) r = 1;
|
||||
if(file->f_mode & FMODE_WRITE) w = 1;
|
||||
if(file->f_mode & FMODE_READ) r = 1;
|
||||
if(file->f_mode & FMODE_WRITE) w = 1;
|
||||
|
||||
ret = os_open_file(mixer, of_set_rw(OPENFLAGS(), r, w), 0);
|
||||
|
||||
if(ret < 0){
|
||||
if(ret < 0){
|
||||
printk("hostaudio_open_mixdev failed to open '%s', err = %d\n",
|
||||
dsp, -ret);
|
||||
kfree(state);
|
||||
return(ret);
|
||||
}
|
||||
}
|
||||
|
||||
file->private_data = state;
|
||||
return(0);
|
||||
file->private_data = state;
|
||||
return(0);
|
||||
}
|
||||
|
||||
static int hostmixer_release(struct inode *inode, struct file *file)
|
||||
{
|
||||
struct hostmixer_state *state = file->private_data;
|
||||
struct hostmixer_state *state = file->private_data;
|
||||
|
||||
#ifdef DEBUG
|
||||
printk("hostmixer: release called\n");
|
||||
printk("hostmixer: release called\n");
|
||||
#endif
|
||||
|
||||
os_close_file(state->fd);
|
||||
kfree(state);
|
||||
os_close_file(state->fd);
|
||||
kfree(state);
|
||||
|
||||
return(0);
|
||||
}
|
||||
|
||||
|
||||
/* kernel module operations */
|
||||
|
||||
static const struct file_operations hostaudio_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.llseek = no_llseek,
|
||||
.read = hostaudio_read,
|
||||
.write = hostaudio_write,
|
||||
.poll = hostaudio_poll,
|
||||
.ioctl = hostaudio_ioctl,
|
||||
.mmap = NULL,
|
||||
.open = hostaudio_open,
|
||||
.release = hostaudio_release,
|
||||
.owner = THIS_MODULE,
|
||||
.llseek = no_llseek,
|
||||
.read = hostaudio_read,
|
||||
.write = hostaudio_write,
|
||||
.poll = hostaudio_poll,
|
||||
.ioctl = hostaudio_ioctl,
|
||||
.mmap = NULL,
|
||||
.open = hostaudio_open,
|
||||
.release = hostaudio_release,
|
||||
};
|
||||
|
||||
static const struct file_operations hostmixer_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.llseek = no_llseek,
|
||||
.ioctl = hostmixer_ioctl_mixdev,
|
||||
.open = hostmixer_open_mixdev,
|
||||
.release = hostmixer_release,
|
||||
.owner = THIS_MODULE,
|
||||
.llseek = no_llseek,
|
||||
.ioctl = hostmixer_ioctl_mixdev,
|
||||
.open = hostmixer_open_mixdev,
|
||||
.release = hostmixer_release,
|
||||
};
|
||||
|
||||
struct {
|
||||
|
|
@ -313,42 +310,31 @@ MODULE_LICENSE("GPL");
|
|||
|
||||
static int __init hostaudio_init_module(void)
|
||||
{
|
||||
printk(KERN_INFO "UML Audio Relay (host dsp = %s, host mixer = %s)\n",
|
||||
printk(KERN_INFO "UML Audio Relay (host dsp = %s, host mixer = %s)\n",
|
||||
dsp, mixer);
|
||||
|
||||
module_data.dev_audio = register_sound_dsp(&hostaudio_fops, -1);
|
||||
if(module_data.dev_audio < 0){
|
||||
printk(KERN_ERR "hostaudio: couldn't register DSP device!\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
if(module_data.dev_audio < 0){
|
||||
printk(KERN_ERR "hostaudio: couldn't register DSP device!\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
module_data.dev_mixer = register_sound_mixer(&hostmixer_fops, -1);
|
||||
if(module_data.dev_mixer < 0){
|
||||
printk(KERN_ERR "hostmixer: couldn't register mixer "
|
||||
if(module_data.dev_mixer < 0){
|
||||
printk(KERN_ERR "hostmixer: couldn't register mixer "
|
||||
"device!\n");
|
||||
unregister_sound_dsp(module_data.dev_audio);
|
||||
return -ENODEV;
|
||||
}
|
||||
unregister_sound_dsp(module_data.dev_audio);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
return 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void __exit hostaudio_cleanup_module (void)
|
||||
{
|
||||
unregister_sound_mixer(module_data.dev_mixer);
|
||||
unregister_sound_dsp(module_data.dev_audio);
|
||||
unregister_sound_mixer(module_data.dev_mixer);
|
||||
unregister_sound_dsp(module_data.dev_audio);
|
||||
}
|
||||
|
||||
module_init(hostaudio_init_module);
|
||||
module_exit(hostaudio_cleanup_module);
|
||||
|
||||
/*
|
||||
* Overrides for Emacs so that we follow Linus's tabbing style.
|
||||
* Emacs will notice this stuff at the end of the file and automatically
|
||||
* adjust the settings for this buffer only. This must remain at the end
|
||||
* of the file.
|
||||
* ---------------------------------------------------------------------------
|
||||
* Local variables:
|
||||
* c-file-style: "linux"
|
||||
* End:
|
||||
*/
|
||||
|
|
|
|||
Loading…
Reference in New Issue