#include "linux/config.h"
#include "linux/module.h"
-#include "linux/version.h"
#include "linux/init.h"
#include "linux/slab.h"
#include "linux/fs.h"
#include "linux/sound.h"
#include "linux/soundcard.h"
+#include "asm/uaccess.h"
#include "kern_util.h"
#include "init.h"
-#include "hostaudio.h"
+#include "os.h"
+
+struct hostaudio_state {
+ int fd;
+};
+
+struct hostmixer_state {
+ int fd;
+};
+
+#define HOSTAUDIO_DEV_DSP "/dev/sound/dsp"
+#define HOSTAUDIO_DEV_MIXER "/dev/sound/mixer"
/* Only changed from linux_main at boot time */
char *dsp = HOSTAUDIO_DEV_DSP;
char *mixer = HOSTAUDIO_DEV_MIXER;
+#define DSP_HELP \
+" This is used to specify the host dsp device to the hostaudio driver.\n" \
+" The default is \"" HOSTAUDIO_DEV_DSP "\".\n\n"
+
+#define MIXER_HELP \
+" This is used to specify the host mixer device to the hostaudio driver.\n"\
+" The default is \"" HOSTAUDIO_DEV_MIXER "\".\n\n"
+
#ifndef MODULE
static int set_dsp(char *name, int *add)
{
- dsp = uml_strdup(name);
+ dsp = name;
return(0);
}
-__uml_setup("dsp=", set_dsp,
-"dsp=<dsp device>\n"
-" This is used to specify the host dsp device to the hostaudio driver.\n"
-" The default is \"" HOSTAUDIO_DEV_DSP "\".\n\n"
-);
+__uml_setup("dsp=", set_dsp, "dsp=<dsp device>\n" DSP_HELP);
static int set_mixer(char *name, int *add)
{
- mixer = uml_strdup(name);
+ mixer = name;
return(0);
}
-__uml_setup("mixer=", set_mixer,
-"mixer=<mixer device>\n"
-" This is used to specify the host mixer device to the hostaudio driver.\n"
-" The default is \"" HOSTAUDIO_DEV_MIXER "\".\n\n"
-);
+__uml_setup("mixer=", set_mixer, "mixer=<mixer device>\n" MIXER_HELP);
+
+#else /*MODULE*/
+
+MODULE_PARM(dsp, "s");
+MODULE_PARM_DESC(dsp, DSP_HELP);
+
+MODULE_PARM(mixer, "s");
+MODULE_PARM_DESC(mixer, MIXER_HELP);
+
#endif
/* /dev/dsp file operations */
loff_t *ppos)
{
struct hostaudio_state *state = file->private_data;
+ void *kbuf;
+ int err;
#ifdef DEBUG
printk("hostaudio: read called, count = %d\n", count);
#endif
- return(hostaudio_read_user(state, buffer, count, ppos));
+ kbuf = kmalloc(count, GFP_KERNEL);
+ if(kbuf == NULL)
+ return(-ENOMEM);
+
+ err = os_read_file(state->fd, kbuf, count);
+ if(err < 0)
+ goto out;
+
+ if(copy_to_user(buffer, kbuf, err))
+ err = -EFAULT;
+
+ out:
+ kfree(kbuf);
+ return(err);
}
static ssize_t hostaudio_write(struct file *file, const char *buffer,
size_t count, loff_t *ppos)
{
struct hostaudio_state *state = file->private_data;
+ void *kbuf;
+ int err;
#ifdef DEBUG
printk("hostaudio: write called, count = %d\n", count);
#endif
- return(hostaudio_write_user(state, buffer, count, ppos));
+
+ kbuf = kmalloc(count, GFP_KERNEL);
+ if(kbuf == NULL)
+ return(-ENOMEM);
+
+ err = -EFAULT;
+ if(copy_from_user(kbuf, buffer, count))
+ goto out;
+
+ err = os_write_file(state->fd, kbuf, count);
+ if(err < 0)
+ goto out;
+ *ppos += err;
+
+ out:
+ kfree(kbuf);
+ return(err);
}
static unsigned int hostaudio_poll(struct file *file,
unsigned int cmd, unsigned long arg)
{
struct hostaudio_state *state = file->private_data;
+ unsigned long data = 0;
+ int err;
#ifdef DEBUG
printk("hostaudio: ioctl called, cmd = %u\n", cmd);
#endif
-
- return(hostaudio_ioctl_user(state, cmd, arg));
+ switch(cmd){
+ case SNDCTL_DSP_SPEED:
+ case SNDCTL_DSP_STEREO:
+ case SNDCTL_DSP_GETBLKSIZE:
+ case SNDCTL_DSP_CHANNELS:
+ case SNDCTL_DSP_SUBDIVIDE:
+ case SNDCTL_DSP_SETFRAGMENT:
+ if(get_user(data, (int *) arg))
+ return(-EFAULT);
+ break;
+ default:
+ break;
+ }
+
+ err = os_ioctl_generic(state->fd, cmd, (unsigned long) &data);
+
+ switch(cmd){
+ case SNDCTL_DSP_SPEED:
+ case SNDCTL_DSP_STEREO:
+ case SNDCTL_DSP_GETBLKSIZE:
+ case SNDCTL_DSP_CHANNELS:
+ case SNDCTL_DSP_SUBDIVIDE:
+ case SNDCTL_DSP_SETFRAGMENT:
+ if(put_user(data, (int *) arg))
+ return(-EFAULT);
+ break;
+ default:
+ break;
+ }
+
+ return(err);
}
static int hostaudio_open(struct inode *inode, struct file *file)
#endif
state = kmalloc(sizeof(struct hostaudio_state), GFP_KERNEL);
- if(state == NULL) return(-ENOMEM);
+ if(state == NULL)
+ return(-ENOMEM);
if(file->f_mode & FMODE_READ) r = 1;
if(file->f_mode & FMODE_WRITE) w = 1;
- ret = hostaudio_open_user(state, r, w, dsp);
+ ret = os_open_file(dsp, of_set_rw(OPENFLAGS(), r, w), 0);
if(ret < 0){
kfree(state);
return(ret);
}
+ state->fd = ret;
file->private_data = state;
return(0);
}
static int hostaudio_release(struct inode *inode, struct file *file)
{
struct hostaudio_state *state = file->private_data;
- int ret;
#ifdef DEBUG
printk("hostaudio: release called\n");
#endif
- ret = hostaudio_release_user(state);
+ os_close_file(state->fd);
kfree(state);
- return(ret);
+ return(0);
}
/* /dev/mixer file operations */
printk("hostmixer: ioctl called\n");
#endif
- return(hostmixer_ioctl_mixdev_user(state, cmd, arg));
+ return(os_ioctl_generic(state->fd, cmd, arg));
}
static int hostmixer_open_mixdev(struct inode *inode, struct file *file)
if(file->f_mode & FMODE_READ) r = 1;
if(file->f_mode & FMODE_WRITE) w = 1;
- ret = hostmixer_open_mixdev_user(state, r, w, mixer);
+ ret = os_open_file(mixer, of_set_rw(OPENFLAGS(), r, w), 0);
if(ret < 0){
+ printk("hostaudio_open_mixdev failed to open '%s', err = %d\n",
+ dsp, -ret);
kfree(state);
return(ret);
}
static int hostmixer_release(struct inode *inode, struct file *file)
{
struct hostmixer_state *state = file->private_data;
- int ret;
#ifdef DEBUG
printk("hostmixer: release called\n");
#endif
- ret = hostmixer_release_mixdev_user(state);
+ os_close_file(state->fd);
kfree(state);
- return(ret);
+ return(0);
}
static int __init hostaudio_init_module(void)
{
- printk(KERN_INFO "UML Audio Relay\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){
git://git.onelab.eu / linux-2.6.git / blobdiff