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