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提交 6b18af18 编写于 作者: G Greg Kroah-Hartman
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Staging: comedi: kcomedilib: kcomedilib_main.c: remove unused functions 

Remove the unused functions from the kcomedilib_main.c file as they are
not needed.

Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
上级 c9f77257
隐藏空白更改
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Showing with 0 addition and 354 deletion
drivers/staging/comedi/kcomedilib/kcomedilib_main.c
浏览文件 @ 6b18af18
......@@ -70,25 +70,6 @@ void *comedi_open(const char *filename)
}
EXPORT_SYMBOL(comedi_open);
void *comedi_open_old(unsigned int minor)
{
struct comedi_device_file_info *dev_file_info;
struct comedi_device *dev;
if (minor >= COMEDI_NUM_MINORS)
return NULL;
dev_file_info = comedi_get_device_file_info(minor);
if (dev_file_info == NULL)
return NULL;
dev = dev_file_info->device;
if (dev == NULL || !dev->attached)
return NULL;
return (void *)dev;
}
int comedi_close(void *d)
{
struct comedi_device *dev = (struct comedi_device *)d;
......@@ -99,83 +80,6 @@ int comedi_close(void *d)
}
EXPORT_SYMBOL(comedi_close);
int comedi_loglevel(int newlevel)
{
return 0;
}
void comedi_perror(const char *message)
{
printk(KERN_ERR "%s: unknown error\n", message);
}
char *comedi_strerror(int err)
{
return "unknown error";
}
int comedi_fileno(void *d)
{
struct comedi_device *dev = (struct comedi_device *)d;
/* return something random */
return dev->minor;
}
int comedi_command(void *d, struct comedi_cmd *cmd)
{
struct comedi_device *dev = (struct comedi_device *)d;
struct comedi_subdevice *s;
struct comedi_async *async;
unsigned runflags;
if (cmd->subdev >= dev->n_subdevices)
return -ENODEV;
s = dev->subdevices + cmd->subdev;
if (s->type == COMEDI_SUBD_UNUSED)
return -EIO;
async = s->async;
if (async == NULL)
return -ENODEV;
if (s->busy)
return -EBUSY;
s->busy = d;
if (async->cb_mask & COMEDI_CB_EOS)
cmd->flags |= TRIG_WAKE_EOS;
async->cmd = *cmd;
runflags = SRF_RUNNING;
comedi_set_subdevice_runflags(s, ~0, runflags);
comedi_reset_async_buf(async);
return s->do_cmd(dev, s);
}
int comedi_command_test(void *d, struct comedi_cmd *cmd)
{
struct comedi_device *dev = (struct comedi_device *)d;
struct comedi_subdevice *s;
if (cmd->subdev >= dev->n_subdevices)
return -ENODEV;
s = dev->subdevices + cmd->subdev;
if (s->type == COMEDI_SUBD_UNUSED)
return -EIO;
if (s->async == NULL)
return -ENODEV;
return s->do_cmdtest(dev, s, cmd);
}
/*
* COMEDI_INSN
* perform an instruction
......@@ -302,261 +206,3 @@ int comedi_do_insn(void *d, struct comedi_insn *insn)
return ret;
}
/*
COMEDI_LOCK
lock subdevice
arg:
subdevice number
reads:
none
writes:
none
necessary locking:
- ioctl/rt lock (this type)
- lock while subdevice busy
- lock while subdevice being programmed
*/
int comedi_lock(void *d, unsigned int subdevice)
{
struct comedi_device *dev = (struct comedi_device *)d;
struct comedi_subdevice *s;
unsigned long flags;
int ret = 0;
if (subdevice >= dev->n_subdevices)
return -EINVAL;
s = dev->subdevices + subdevice;
spin_lock_irqsave(&s->spin_lock, flags);
if (s->busy) {
ret = -EBUSY;
} else {
if (s->lock) {
ret = -EBUSY;
} else {
s->lock = d;
}
}
spin_unlock_irqrestore(&s->spin_lock, flags);
return ret;
}
/*
COMEDI_UNLOCK
unlock subdevice
arg:
subdevice number
reads:
none
writes:
none
*/
int comedi_unlock(void *d, unsigned int subdevice)
{
struct comedi_device *dev = (struct comedi_device *)d;
struct comedi_subdevice *s;
unsigned long flags;
struct comedi_async *async;
int ret;
if (subdevice >= dev->n_subdevices)
return -EINVAL;
s = dev->subdevices + subdevice;
async = s->async;
spin_lock_irqsave(&s->spin_lock, flags);
if (s->busy) {
ret = -EBUSY;
} else if (s->lock && s->lock != (void *)d) {
ret = -EACCES;
} else {
s->lock = NULL;
if (async) {
async->cb_mask = 0;
async->cb_func = NULL;
async->cb_arg = NULL;
}
ret = 0;
}
spin_unlock_irqrestore(&s->spin_lock, flags);
return ret;
}
/*
COMEDI_CANCEL
cancel acquisition ioctl
arg:
subdevice number
reads:
nothing
writes:
nothing
*/
int comedi_cancel(void *d, unsigned int subdevice)
{
struct comedi_device *dev = (struct comedi_device *)d;
struct comedi_subdevice *s;
int ret = 0;
if (subdevice >= dev->n_subdevices)
return -EINVAL;
s = dev->subdevices + subdevice;
if (s->lock && s->lock != d)
return -EACCES;
#if 0
if (!s->busy)
return 0;
if (s->busy != d)
return -EBUSY;
#endif
if (!s->cancel || !s->async)
return -EINVAL;
ret = s->cancel(dev, s);
if (ret)
return ret;
comedi_set_subdevice_runflags(s, SRF_RUNNING | SRF_RT, 0);
s->async->inttrig = NULL;
s->busy = NULL;
return 0;
}
/*
registration of callback functions
*/
int comedi_register_callback(void *d, unsigned int subdevice,
unsigned int mask, int (*cb) (unsigned int,
void *), void *arg)
{
struct comedi_device *dev = (struct comedi_device *)d;
struct comedi_subdevice *s;
struct comedi_async *async;
if (subdevice >= dev->n_subdevices)
return -EINVAL;
s = dev->subdevices + subdevice;
async = s->async;
if (s->type == COMEDI_SUBD_UNUSED || !async)
return -EIO;
/* are we locked? (ioctl lock) */
if (s->lock && s->lock != d)
return -EACCES;
/* are we busy? */
if (s->busy)
return -EBUSY;
if (!mask) {
async->cb_mask = 0;
async->cb_func = NULL;
async->cb_arg = NULL;
} else {
async->cb_mask = mask;
async->cb_func = cb;
async->cb_arg = arg;
}
return 0;
}
int comedi_poll(void *d, unsigned int subdevice)
{
struct comedi_device *dev = (struct comedi_device *)d;
struct comedi_subdevice *s = dev->subdevices;
struct comedi_async *async;
if (subdevice >= dev->n_subdevices)
return -EINVAL;
s = dev->subdevices + subdevice;
async = s->async;
if (s->type == COMEDI_SUBD_UNUSED || !async)
return -EIO;
/* are we locked? (ioctl lock) */
if (s->lock && s->lock != d)
return -EACCES;
/* are we running? XXX wrong? */
if (!s->busy)
return -EIO;
return s->poll(dev, s);
}
/* WARNING: not portable */
int comedi_map(void *d, unsigned int subdevice, void *ptr)
{
struct comedi_device *dev = (struct comedi_device *)d;
struct comedi_subdevice *s;
if (subdevice >= dev->n_subdevices)
return -EINVAL;
s = dev->subdevices + subdevice;
if (!s->async)
return -EINVAL;
if (ptr)
*((void **)ptr) = s->async->prealloc_buf;
/* XXX no reference counting */
return 0;
}
/* WARNING: not portable */
int comedi_unmap(void *d, unsigned int subdevice)
{
struct comedi_device *dev = (struct comedi_device *)d;
struct comedi_subdevice *s;
if (subdevice >= dev->n_subdevices)
return -EINVAL;
s = dev->subdevices + subdevice;
if (!s->async)
return -EINVAL;
/* XXX no reference counting */
return 0;
}
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