#include <linux/fs.h>
#include <linux/poll.h>
#include <linux/module.h>
+ #include <linux/mutex.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/vmalloc.h>
return -EFAULT;
}
+ mutex_lock(&fi->state_mutex);
+
switch (fi->state) {
case opened:
retval = state_opened(fi, req);
break;
}
+ mutex_unlock(&fi->state_mutex);
+
if (retval < 0) {
free_pending_request(req);
} else {
static int raw1394_mmap(struct file *file, struct vm_area_struct *vma)
{
struct file_info *fi = file->private_data;
+ int ret;
+
+ mutex_lock(&fi->state_mutex);
if (fi->iso_state == RAW1394_ISO_INACTIVE)
- return -EINVAL;
+ ret = -EINVAL;
+ else
+ ret = dma_region_mmap(&fi->iso_handle->data_buf, file, vma);
+
+ mutex_unlock(&fi->state_mutex);
- return dma_region_mmap(&fi->iso_handle->data_buf, file, vma);
+ return ret;
}
- /* ioctl is only used for rawiso operations */
- static long do_raw1394_ioctl(struct file *file, unsigned int cmd,
- unsigned long arg)
+ static long raw1394_ioctl_inactive(struct file_info *fi, unsigned int cmd,
+ void __user *argp)
+ {
+ switch (cmd) {
+ case RAW1394_IOC_ISO_XMIT_INIT:
+ return raw1394_iso_xmit_init(fi, argp);
+ case RAW1394_IOC_ISO_RECV_INIT:
+ return raw1394_iso_recv_init(fi, argp);
+ default:
+ return -EINVAL;
+ }
+ }
+
+ static long raw1394_ioctl_recv(struct file_info *fi, unsigned int cmd,
+ unsigned long arg)
{
- struct file_info *fi = file->private_data;
void __user *argp = (void __user *)arg;
- switch (fi->iso_state) {
- case RAW1394_ISO_INACTIVE:
- switch (cmd) {
- case RAW1394_IOC_ISO_XMIT_INIT:
- return raw1394_iso_xmit_init(fi, argp);
- case RAW1394_IOC_ISO_RECV_INIT:
- return raw1394_iso_recv_init(fi, argp);
- default:
- break;
+ switch (cmd) {
+ case RAW1394_IOC_ISO_RECV_START:{
+ int args[3];
+
+ if (copy_from_user(&args[0], argp, sizeof(args)))
+ return -EFAULT;
+ return hpsb_iso_recv_start(fi->iso_handle,
+ args[0], args[1], args[2]);
}
- break;
- case RAW1394_ISO_RECV:
- switch (cmd) {
- case RAW1394_IOC_ISO_RECV_START:{
- /* copy args from user-space */
- int args[3];
- if (copy_from_user
- (&args[0], argp, sizeof(args)))
- return -EFAULT;
- return hpsb_iso_recv_start(fi->iso_handle,
- args[0], args[1],
- args[2]);
- }
- case RAW1394_IOC_ISO_XMIT_RECV_STOP:
- hpsb_iso_stop(fi->iso_handle);
- return 0;
- case RAW1394_IOC_ISO_RECV_LISTEN_CHANNEL:
- return hpsb_iso_recv_listen_channel(fi->iso_handle,
- arg);
- case RAW1394_IOC_ISO_RECV_UNLISTEN_CHANNEL:
- return hpsb_iso_recv_unlisten_channel(fi->iso_handle,
- arg);
- case RAW1394_IOC_ISO_RECV_SET_CHANNEL_MASK:{
- /* copy the u64 from user-space */
- u64 mask;
- if (copy_from_user(&mask, argp, sizeof(mask)))
- return -EFAULT;
- return hpsb_iso_recv_set_channel_mask(fi->
- iso_handle,
- mask);
- }
- case RAW1394_IOC_ISO_GET_STATUS:
- return raw1394_iso_get_status(fi, argp);
- case RAW1394_IOC_ISO_RECV_PACKETS:
- return raw1394_iso_recv_packets(fi, argp);
- case RAW1394_IOC_ISO_RECV_RELEASE_PACKETS:
- return hpsb_iso_recv_release_packets(fi->iso_handle,
- arg);
- case RAW1394_IOC_ISO_RECV_FLUSH:
- return hpsb_iso_recv_flush(fi->iso_handle);
- case RAW1394_IOC_ISO_SHUTDOWN:
- raw1394_iso_shutdown(fi);
- return 0;
- case RAW1394_IOC_ISO_QUEUE_ACTIVITY:
- queue_rawiso_event(fi);
- return 0;
+ case RAW1394_IOC_ISO_XMIT_RECV_STOP:
+ hpsb_iso_stop(fi->iso_handle);
+ return 0;
+ case RAW1394_IOC_ISO_RECV_LISTEN_CHANNEL:
+ return hpsb_iso_recv_listen_channel(fi->iso_handle, arg);
+ case RAW1394_IOC_ISO_RECV_UNLISTEN_CHANNEL:
+ return hpsb_iso_recv_unlisten_channel(fi->iso_handle, arg);
+ case RAW1394_IOC_ISO_RECV_SET_CHANNEL_MASK:{
+ u64 mask;
+
+ if (copy_from_user(&mask, argp, sizeof(mask)))
+ return -EFAULT;
+ return hpsb_iso_recv_set_channel_mask(fi->iso_handle,
+ mask);
}
- break;
- case RAW1394_ISO_XMIT:
- switch (cmd) {
- case RAW1394_IOC_ISO_XMIT_START:{
- /* copy two ints from user-space */
- int args[2];
- if (copy_from_user
- (&args[0], argp, sizeof(args)))
- return -EFAULT;
- return hpsb_iso_xmit_start(fi->iso_handle,
- args[0], args[1]);
- }
- case RAW1394_IOC_ISO_XMIT_SYNC:
- return hpsb_iso_xmit_sync(fi->iso_handle);
- case RAW1394_IOC_ISO_XMIT_RECV_STOP:
- hpsb_iso_stop(fi->iso_handle);
- return 0;
- case RAW1394_IOC_ISO_GET_STATUS:
- return raw1394_iso_get_status(fi, argp);
- case RAW1394_IOC_ISO_XMIT_PACKETS:
- return raw1394_iso_send_packets(fi, argp);
- case RAW1394_IOC_ISO_SHUTDOWN:
- raw1394_iso_shutdown(fi);
- return 0;
- case RAW1394_IOC_ISO_QUEUE_ACTIVITY:
- queue_rawiso_event(fi);
- return 0;
+ case RAW1394_IOC_ISO_GET_STATUS:
+ return raw1394_iso_get_status(fi, argp);
+ case RAW1394_IOC_ISO_RECV_PACKETS:
+ return raw1394_iso_recv_packets(fi, argp);
+ case RAW1394_IOC_ISO_RECV_RELEASE_PACKETS:
+ return hpsb_iso_recv_release_packets(fi->iso_handle, arg);
+ case RAW1394_IOC_ISO_RECV_FLUSH:
+ return hpsb_iso_recv_flush(fi->iso_handle);
+ case RAW1394_IOC_ISO_SHUTDOWN:
+ raw1394_iso_shutdown(fi);
+ return 0;
+ case RAW1394_IOC_ISO_QUEUE_ACTIVITY:
+ queue_rawiso_event(fi);
+ return 0;
+ default:
+ return -EINVAL;
+ }
+ }
+
+ static long raw1394_ioctl_xmit(struct file_info *fi, unsigned int cmd,
+ void __user *argp)
+ {
+ switch (cmd) {
+ case RAW1394_IOC_ISO_XMIT_START:{
+ int args[2];
+
+ if (copy_from_user(&args[0], argp, sizeof(args)))
+ return -EFAULT;
+ return hpsb_iso_xmit_start(fi->iso_handle,
+ args[0], args[1]);
}
- break;
+ case RAW1394_IOC_ISO_XMIT_SYNC:
+ return hpsb_iso_xmit_sync(fi->iso_handle);
+ case RAW1394_IOC_ISO_XMIT_RECV_STOP:
+ hpsb_iso_stop(fi->iso_handle);
+ return 0;
+ case RAW1394_IOC_ISO_GET_STATUS:
+ return raw1394_iso_get_status(fi, argp);
+ case RAW1394_IOC_ISO_XMIT_PACKETS:
+ return raw1394_iso_send_packets(fi, argp);
+ case RAW1394_IOC_ISO_SHUTDOWN:
+ raw1394_iso_shutdown(fi);
+ return 0;
+ case RAW1394_IOC_ISO_QUEUE_ACTIVITY:
+ queue_rawiso_event(fi);
+ return 0;
default:
- break;
+ return -EINVAL;
}
+ }
+
+ /* ioctl is only used for rawiso operations */
+ static long raw1394_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+ {
+ struct file_info *fi = file->private_data;
+ void __user *argp = (void __user *)arg;
+ long ret;
/* state-independent commands */
switch(cmd) {
break;
}
- return -EINVAL;
- }
+ mutex_lock(&fi->state_mutex);
+
+ switch (fi->iso_state) {
+ case RAW1394_ISO_INACTIVE:
+ ret = raw1394_ioctl_inactive(fi, cmd, argp);
+ break;
+ case RAW1394_ISO_RECV:
+ ret = raw1394_ioctl_recv(fi, cmd, arg);
+ break;
+ case RAW1394_ISO_XMIT:
+ ret = raw1394_ioctl_xmit(fi, cmd, argp);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ mutex_unlock(&fi->state_mutex);
- static long raw1394_ioctl(struct file *file, unsigned int cmd,
- unsigned long arg)
- {
- long ret;
- lock_kernel();
- ret = do_raw1394_ioctl(file, cmd, arg);
- unlock_kernel();
return ret;
}
!copy_from_user(&infos32, &arg->infos, sizeof infos32)) {
infos = compat_ptr(infos32);
if (!copy_to_user(&dst->infos, &infos, sizeof infos))
- err = do_raw1394_ioctl(file, cmd, (unsigned long)dst);
+ err = raw1394_ioctl(file, cmd, (unsigned long)dst);
}
return err;
}
void __user *argp = (void __user *)arg;
long err;
- lock_kernel();
switch (cmd) {
/* These requests have same format as long as 'int' has same size. */
case RAW1394_IOC_ISO_RECV_INIT:
case RAW1394_IOC_ISO_GET_STATUS:
case RAW1394_IOC_ISO_SHUTDOWN:
case RAW1394_IOC_ISO_QUEUE_ACTIVITY:
- err = do_raw1394_ioctl(file, cmd, arg);
+ err = raw1394_ioctl(file, cmd, arg);
break;
/* These request have different format. */
case RAW1394_IOC_ISO_RECV_PACKETS32:
err = -EINVAL;
break;
}
- unlock_kernel();
return err;
}
fi->notification = (u8) RAW1394_NOTIFY_ON; /* busreset notification */
INIT_LIST_HEAD(&fi->list);
+ mutex_init(&fi->state_mutex);
fi->state = opened;
INIT_LIST_HEAD(&fi->req_pending);
INIT_LIST_HEAD(&fi->req_complete);
hpsb_register_highlevel(&raw1394_highlevel);
if (IS_ERR
- (device_create_drvdata(
- hpsb_protocol_class, NULL,
- MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16),
- NULL, RAW1394_DEVICE_NAME))) {
+ (device_create(hpsb_protocol_class, NULL,
+ MKDEV(IEEE1394_MAJOR,
+ IEEE1394_MINOR_BLOCK_RAW1394 * 16),
+ NULL, RAW1394_DEVICE_NAME))) {
ret = -EFAULT;
goto out_unreg;
}
if (unlikely(d == NULL))
return -EFAULT;
- if (unlikely((v.buffer<0) || (v.buffer>=d->num_desc - 1))) {
+ if (unlikely(v.buffer >= d->num_desc - 1)) {
PRINT(KERN_ERR, ohci->host->id,
"Buffer %d out of range",v.buffer);
return -EINVAL;
if (unlikely(d == NULL))
return -EFAULT;
- if (unlikely((v.buffer<0) || (v.buffer>d->num_desc - 1))) {
+ if (unlikely(v.buffer > d->num_desc - 1)) {
PRINT(KERN_ERR, ohci->host->id,
"Buffer %d out of range",v.buffer);
return -EINVAL;
d = find_ctx(&ctx->context_list, OHCI_ISO_TRANSMIT, v.channel);
if (d == NULL) return -EFAULT;
- if ((v.buffer<0) || (v.buffer>=d->num_desc - 1)) {
+ if (v.buffer >= d->num_desc - 1) {
PRINT(KERN_ERR, ohci->host->id,
"Buffer %d out of range",v.buffer);
return -EINVAL;
d = find_ctx(&ctx->context_list, OHCI_ISO_TRANSMIT, v.channel);
if (d == NULL) return -EFAULT;
- if ((v.buffer<0) || (v.buffer>=d->num_desc-1)) {
+ if (v.buffer >= d->num_desc - 1) {
PRINT(KERN_ERR, ohci->host->id,
"Buffer %d out of range",v.buffer);
return -EINVAL;
hpsb_set_hostinfo_key(&video1394_highlevel, host, ohci->host->id);
minor = IEEE1394_MINOR_BLOCK_VIDEO1394 * 16 + ohci->host->id;
- device_create_drvdata(hpsb_protocol_class, NULL,
- MKDEV(IEEE1394_MAJOR, minor), NULL,
- "%s-%d", VIDEO1394_DRIVER_NAME, ohci->host->id);
+ device_create(hpsb_protocol_class, NULL, MKDEV(IEEE1394_MAJOR, minor),
+ NULL, "%s-%d", VIDEO1394_DRIVER_NAME, ohci->host->id);
}