#include <linux/cdev.h>
#include <asm/uaccess.h>
#include <asm/atomic.h>
-#include <linux/devfs_fs_kernel.h>
+#include <linux/compat.h>
#include "csr1212.h"
+#include "highlevel.h"
+#include "hosts.h"
#include "ieee1394.h"
-#include "ieee1394_types.h"
#include "ieee1394_core.h"
-#include "nodemgr.h"
-#include "hosts.h"
-#include "highlevel.h"
-#include "iso.h"
+#include "ieee1394_hotplug.h"
#include "ieee1394_transactions.h"
+#include "ieee1394_types.h"
+#include "iso.h"
+#include "nodemgr.h"
#include "raw1394.h"
#include "raw1394-private.h"
#define DBGMSG(fmt, args...) \
printk(KERN_INFO "raw1394:" fmt "\n" , ## args)
#else
-#define DBGMSG(fmt, args...)
+#define DBGMSG(fmt, args...) do {} while (0)
#endif
static LIST_HEAD(host_info_list);
static void queue_complete_cb(struct pending_request *req);
-static struct pending_request *__alloc_pending_request(int flags)
+#include <asm/current.h>
+static void print_old_iso_deprecation(void)
+{
+ static pid_t p;
+
+ if (p == current->pid)
+ return;
+ p = current->pid;
+ printk(KERN_WARNING "raw1394: WARNING - Program \"%s\" uses unsupported"
+ " isochronous request types which will be removed in a next"
+ " kernel release\n", current->comm);
+ printk(KERN_WARNING "raw1394: Update your software to use libraw1394's"
+ " newer interface\n");
+}
+
+static struct pending_request *__alloc_pending_request(gfp_t flags)
{
struct pending_request *req;
- req = (struct pending_request *)kmalloc(sizeof(struct pending_request),
- flags);
- if (req != NULL) {
- memset(req, 0, sizeof(struct pending_request));
+ req = kzalloc(sizeof(*req), flags);
+ if (req)
INIT_LIST_HEAD(&req->list);
- }
return req;
}
static inline struct pending_request *alloc_pending_request(void)
{
- return __alloc_pending_request(SLAB_KERNEL);
+ return __alloc_pending_request(GFP_KERNEL);
}
static void free_pending_request(struct pending_request *req)
static void __queue_complete_req(struct pending_request *req)
{
struct file_info *fi = req->file_info;
- list_del(&req->list);
- list_add_tail(&req->list, &fi->req_complete);
- up(&fi->complete_sem);
- wake_up_interruptible(&fi->poll_wait_complete);
+ list_move_tail(&req->list, &fi->req_complete);
+ wake_up(&fi->wait_complete);
}
static void queue_complete_req(struct pending_request *req)
struct host_info *hi;
unsigned long flags;
- hi = (struct host_info *)kmalloc(sizeof(struct host_info), GFP_KERNEL);
+ hi = kmalloc(sizeof(*hi), GFP_KERNEL);
- if (hi != NULL) {
+ if (hi) {
INIT_LIST_HEAD(&hi->list);
hi->host = host;
INIT_LIST_HEAD(&hi->file_info_list);
if (hi != NULL) {
list_for_each_entry(fi, &hi->file_info_list, list) {
if (fi->notification == RAW1394_NOTIFY_ON) {
- req = __alloc_pending_request(SLAB_ATOMIC);
+ req = __alloc_pending_request(GFP_ATOMIC);
if (req != NULL) {
req->file_info = fi;
if (!(fi->listen_channels & (1ULL << channel)))
continue;
- req = __alloc_pending_request(SLAB_ATOMIC);
+ req = __alloc_pending_request(GFP_ATOMIC);
if (!req)
break;
if (!ibs) {
- ibs = kmalloc(sizeof(struct iso_block_store)
- + length, SLAB_ATOMIC);
+ ibs = kmalloc(sizeof(*ibs) + length,
+ GFP_ATOMIC);
if (!ibs) {
kfree(req);
break;
if (!fi->fcp_buffer)
continue;
- req = __alloc_pending_request(SLAB_ATOMIC);
+ req = __alloc_pending_request(GFP_ATOMIC);
if (!req)
break;
if (!ibs) {
- ibs = kmalloc(sizeof(struct iso_block_store)
- + length, SLAB_ATOMIC);
+ ibs = kmalloc(sizeof(*ibs) + length,
+ GFP_ATOMIC);
if (!ibs) {
kfree(req);
break;
queue_complete_req(req);
}
+#ifdef CONFIG_COMPAT
+struct compat_raw1394_req {
+ __u32 type;
+ __s32 error;
+ __u32 misc;
+
+ __u32 generation;
+ __u32 length;
+
+ __u64 address;
+
+ __u64 tag;
+
+ __u64 sendb;
+ __u64 recvb;
+} __attribute__((packed));
+
+static const char __user *raw1394_compat_write(const char __user *buf)
+{
+ struct compat_raw1394_req __user *cr = (typeof(cr)) buf;
+ struct raw1394_request __user *r;
+ r = compat_alloc_user_space(sizeof(struct raw1394_request));
+
+#define C(x) __copy_in_user(&r->x, &cr->x, sizeof(r->x))
+
+ if (copy_in_user(r, cr, sizeof(struct compat_raw1394_req)) ||
+ C(address) ||
+ C(tag) ||
+ C(sendb) ||
+ C(recvb))
+ return ERR_PTR(-EFAULT);
+ return (const char __user *)r;
+}
+#undef C
+
+#define P(x) __put_user(r->x, &cr->x)
+
+static int
+raw1394_compat_read(const char __user *buf, struct raw1394_request *r)
+{
+ struct compat_raw1394_req __user *cr = (typeof(cr)) r;
+ if (!access_ok(VERIFY_WRITE, cr, sizeof(struct compat_raw1394_req)) ||
+ P(type) ||
+ P(error) ||
+ P(misc) ||
+ P(generation) ||
+ P(length) ||
+ P(address) ||
+ P(tag) ||
+ P(sendb) ||
+ P(recvb))
+ return -EFAULT;
+ return sizeof(struct compat_raw1394_req);
+}
+#undef P
+
+#endif
+
+/* get next completed request (caller must hold fi->reqlists_lock) */
+static inline struct pending_request *__next_complete_req(struct file_info *fi)
+{
+ struct list_head *lh;
+ struct pending_request *req = NULL;
+
+ if (!list_empty(&fi->req_complete)) {
+ lh = fi->req_complete.next;
+ list_del(lh);
+ req = list_entry(lh, struct pending_request, list);
+ }
+ return req;
+}
+
+/* atomically get next completed request */
+static struct pending_request *next_complete_req(struct file_info *fi)
+{
+ unsigned long flags;
+ struct pending_request *req;
+
+ spin_lock_irqsave(&fi->reqlists_lock, flags);
+ req = __next_complete_req(fi);
+ spin_unlock_irqrestore(&fi->reqlists_lock, flags);
+ return req;
+}
+
static ssize_t raw1394_read(struct file *file, char __user * buffer,
size_t count, loff_t * offset_is_ignored)
{
struct file_info *fi = (struct file_info *)file->private_data;
- struct list_head *lh;
struct pending_request *req;
ssize_t ret;
+#ifdef CONFIG_COMPAT
+ if (count == sizeof(struct compat_raw1394_req)) {
+ /* ok */
+ } else
+#endif
if (count != sizeof(struct raw1394_request)) {
return -EINVAL;
}
}
if (file->f_flags & O_NONBLOCK) {
- if (down_trylock(&fi->complete_sem)) {
+ if (!(req = next_complete_req(fi)))
return -EAGAIN;
- }
} else {
- if (down_interruptible(&fi->complete_sem)) {
+ /*
+ * NB: We call the macro wait_event_interruptible() with a
+ * condition argument with side effect. This is only possible
+ * because the side effect does not occur until the condition
+ * became true, and wait_event_interruptible() won't evaluate
+ * the condition again after that.
+ */
+ if (wait_event_interruptible(fi->wait_complete,
+ (req = next_complete_req(fi))))
return -ERESTARTSYS;
- }
}
- spin_lock_irq(&fi->reqlists_lock);
- lh = fi->req_complete.next;
- list_del(lh);
- spin_unlock_irq(&fi->reqlists_lock);
-
- req = list_entry(lh, struct pending_request, list);
-
if (req->req.length) {
if (copy_to_user(int2ptr(req->req.recvb), req->data,
req->req.length)) {
req->req.error = RAW1394_ERROR_MEMFAULT;
}
}
- if (copy_to_user(buffer, &req->req, sizeof(req->req))) {
- ret = -EFAULT;
- goto out;
- }
- ret = (ssize_t) sizeof(struct raw1394_request);
+#ifdef CONFIG_COMPAT
+ if (count == sizeof(struct compat_raw1394_req) &&
+ sizeof(struct compat_raw1394_req) !=
+ sizeof(struct raw1394_request)) {
+ ret = raw1394_compat_read(buffer, &req->req);
+ } else
+#endif
+ {
+ if (copy_to_user(buffer, &req->req, sizeof(req->req))) {
+ ret = -EFAULT;
+ goto out;
+ }
+ ret = (ssize_t) sizeof(struct raw1394_request);
+ }
out:
free_pending_request(req);
return ret;
static int state_initialized(struct file_info *fi, struct pending_request *req)
{
+ unsigned long flags;
struct host_info *hi;
struct raw1394_khost_list *khl;
switch (req->req.type) {
case RAW1394_REQ_LIST_CARDS:
- spin_lock_irq(&host_info_lock);
- khl = kmalloc(sizeof(struct raw1394_khost_list) * host_count,
- SLAB_ATOMIC);
+ spin_lock_irqsave(&host_info_lock, flags);
+ khl = kmalloc(sizeof(*khl) * host_count, GFP_ATOMIC);
- if (khl != NULL) {
+ if (khl) {
req->req.misc = host_count;
req->data = (quadlet_t *) khl;
khl++;
}
}
- spin_unlock_irq(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, flags);
- if (khl != NULL) {
+ if (khl) {
req->req.error = RAW1394_ERROR_NONE;
req->req.length = min(req->req.length,
(u32) (sizeof
break;
case RAW1394_REQ_SET_CARD:
- spin_lock_irq(&host_info_lock);
+ spin_lock_irqsave(&host_info_lock, flags);
if (req->req.misc < host_count) {
list_for_each_entry(hi, &host_info_list, list) {
if (!req->req.misc--)
} else {
req->req.error = RAW1394_ERROR_INVALID_ARG;
}
- spin_unlock_irq(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, flags);
req->req.length = 0;
break;
{
int channel = req->req.misc;
- spin_lock_irq(&host_info_lock);
if ((channel > 63) || (channel < -64)) {
req->req.error = RAW1394_ERROR_INVALID_ARG;
} else if (channel >= 0) {
req->req.length = 0;
queue_complete_req(req);
- spin_unlock_irq(&host_info_lock);
}
static void handle_fcp_listen(struct file_info *fi, struct pending_request *req)
static int handle_async_request(struct file_info *fi,
struct pending_request *req, int node)
{
+ unsigned long flags;
struct hpsb_packet *packet = NULL;
u64 addr = req->req.address & 0xffffffffffffULL;
hpsb_set_packet_complete_task(packet,
(void (*)(void *))queue_complete_cb, req);
- spin_lock_irq(&fi->reqlists_lock);
+ spin_lock_irqsave(&fi->reqlists_lock, flags);
list_add_tail(&req->list, &fi->req_pending);
- spin_unlock_irq(&fi->reqlists_lock);
+ spin_unlock_irqrestore(&fi->reqlists_lock, flags);
packet->generation = req->req.generation;
static int handle_iso_send(struct file_info *fi, struct pending_request *req,
int channel)
{
+ unsigned long flags;
struct hpsb_packet *packet;
packet = hpsb_make_isopacket(fi->host, req->req.length, channel & 0x3f,
(void (*)(void *))queue_complete_req,
req);
- spin_lock_irq(&fi->reqlists_lock);
+ spin_lock_irqsave(&fi->reqlists_lock, flags);
list_add_tail(&req->list, &fi->req_pending);
- spin_unlock_irq(&fi->reqlists_lock);
+ spin_unlock_irqrestore(&fi->reqlists_lock, flags);
/* Update the generation of the packet just before sending. */
packet->generation = req->req.generation;
static int handle_async_send(struct file_info *fi, struct pending_request *req)
{
+ unsigned long flags;
struct hpsb_packet *packet;
int header_length = req->req.misc & 0xffff;
int expect_response = req->req.misc >> 16;
hpsb_set_packet_complete_task(packet,
(void (*)(void *))queue_complete_cb, req);
- spin_lock_irq(&fi->reqlists_lock);
+ spin_lock_irqsave(&fi->reqlists_lock, flags);
list_add_tail(&req->list, &fi->req_pending);
- spin_unlock_irq(&fi->reqlists_lock);
+ spin_unlock_irqrestore(&fi->reqlists_lock, flags);
/* Update the generation of the packet just before sending. */
packet->generation = req->req.generation;
static int arm_read(struct hpsb_host *host, int nodeid, quadlet_t * buffer,
u64 addr, size_t length, u16 flags)
{
+ unsigned long irqflags;
struct pending_request *req;
struct host_info *hi;
struct file_info *fi = NULL;
"addr: %4.4x %8.8x length: %Zu", nodeid,
(u16) ((addr >> 32) & 0xFFFF), (u32) (addr & 0xFFFFFFFF),
length);
- spin_lock(&host_info_lock);
+ spin_lock_irqsave(&host_info_lock, irqflags);
hi = find_host_info(host); /* search address-entry */
if (hi != NULL) {
list_for_each_entry(fi, &hi->file_info_list, list) {
if (!found) {
printk(KERN_ERR "raw1394: arm_read FAILED addr_entry not found"
" -> rcode_address_error\n");
- spin_unlock(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, irqflags);
return (RCODE_ADDRESS_ERROR);
} else {
DBGMSG("arm_read addr_entry FOUND");
}
if (arm_addr->notification_options & ARM_READ) {
DBGMSG("arm_read -> entering notification-section");
- req = __alloc_pending_request(SLAB_ATOMIC);
+ req = __alloc_pending_request(GFP_ATOMIC);
if (!req) {
DBGMSG("arm_read -> rcode_conflict_error");
- spin_unlock(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, irqflags);
return (RCODE_CONFLICT_ERROR); /* A resource conflict was detected.
The request may be retried */
}
sizeof(struct arm_response) +
sizeof(struct arm_request_response);
}
- req->data = kmalloc(size, SLAB_ATOMIC);
+ req->data = kmalloc(size, GFP_ATOMIC);
if (!(req->data)) {
free_pending_request(req);
DBGMSG("arm_read -> rcode_conflict_error");
- spin_unlock(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, irqflags);
return (RCODE_CONFLICT_ERROR); /* A resource conflict was detected.
The request may be retried */
}
sizeof(struct arm_request));
queue_complete_req(req);
}
- spin_unlock(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, irqflags);
return (rcode);
}
static int arm_write(struct hpsb_host *host, int nodeid, int destid,
quadlet_t * data, u64 addr, size_t length, u16 flags)
{
+ unsigned long irqflags;
struct pending_request *req;
struct host_info *hi;
struct file_info *fi = NULL;
"addr: %4.4x %8.8x length: %Zu", nodeid,
(u16) ((addr >> 32) & 0xFFFF), (u32) (addr & 0xFFFFFFFF),
length);
- spin_lock(&host_info_lock);
+ spin_lock_irqsave(&host_info_lock, irqflags);
hi = find_host_info(host); /* search address-entry */
if (hi != NULL) {
list_for_each_entry(fi, &hi->file_info_list, list) {
if (!found) {
printk(KERN_ERR "raw1394: arm_write FAILED addr_entry not found"
" -> rcode_address_error\n");
- spin_unlock(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, irqflags);
return (RCODE_ADDRESS_ERROR);
} else {
DBGMSG("arm_write addr_entry FOUND");
}
if (arm_addr->notification_options & ARM_WRITE) {
DBGMSG("arm_write -> entering notification-section");
- req = __alloc_pending_request(SLAB_ATOMIC);
+ req = __alloc_pending_request(GFP_ATOMIC);
if (!req) {
DBGMSG("arm_write -> rcode_conflict_error");
- spin_unlock(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, irqflags);
return (RCODE_CONFLICT_ERROR); /* A resource conflict was detected.
The request my be retried */
}
sizeof(struct arm_request) + sizeof(struct arm_response) +
(length) * sizeof(byte_t) +
sizeof(struct arm_request_response);
- req->data = kmalloc(size, SLAB_ATOMIC);
+ req->data = kmalloc(size, GFP_ATOMIC);
if (!(req->data)) {
free_pending_request(req);
DBGMSG("arm_write -> rcode_conflict_error");
- spin_unlock(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, irqflags);
return (RCODE_CONFLICT_ERROR); /* A resource conflict was detected.
The request may be retried */
}
sizeof(struct arm_request));
queue_complete_req(req);
}
- spin_unlock(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, irqflags);
return (rcode);
}
u64 addr, quadlet_t data, quadlet_t arg, int ext_tcode,
u16 flags)
{
+ unsigned long irqflags;
struct pending_request *req;
struct host_info *hi;
struct file_info *fi = NULL;
(u32) (addr & 0xFFFFFFFF), ext_tcode & 0xFF,
be32_to_cpu(data), be32_to_cpu(arg));
}
- spin_lock(&host_info_lock);
+ spin_lock_irqsave(&host_info_lock, irqflags);
hi = find_host_info(host); /* search address-entry */
if (hi != NULL) {
list_for_each_entry(fi, &hi->file_info_list, list) {
if (!found) {
printk(KERN_ERR "raw1394: arm_lock FAILED addr_entry not found"
" -> rcode_address_error\n");
- spin_unlock(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, irqflags);
return (RCODE_ADDRESS_ERROR);
} else {
DBGMSG("arm_lock addr_entry FOUND");
if (arm_addr->notification_options & ARM_LOCK) {
byte_t *buf1, *buf2;
DBGMSG("arm_lock -> entering notification-section");
- req = __alloc_pending_request(SLAB_ATOMIC);
+ req = __alloc_pending_request(GFP_ATOMIC);
if (!req) {
DBGMSG("arm_lock -> rcode_conflict_error");
- spin_unlock(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, irqflags);
return (RCODE_CONFLICT_ERROR); /* A resource conflict was detected.
The request may be retried */
}
size = sizeof(struct arm_request) + sizeof(struct arm_response) + 3 * sizeof(*store) + sizeof(struct arm_request_response); /* maximum */
- req->data = kmalloc(size, SLAB_ATOMIC);
+ req->data = kmalloc(size, GFP_ATOMIC);
if (!(req->data)) {
free_pending_request(req);
DBGMSG("arm_lock -> rcode_conflict_error");
- spin_unlock(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, irqflags);
return (RCODE_CONFLICT_ERROR); /* A resource conflict was detected.
The request may be retried */
}
sizeof(struct arm_response) + 2 * sizeof(*store));
queue_complete_req(req);
}
- spin_unlock(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, irqflags);
return (rcode);
}
u64 addr, octlet_t data, octlet_t arg, int ext_tcode,
u16 flags)
{
+ unsigned long irqflags;
struct pending_request *req;
struct host_info *hi;
struct file_info *fi = NULL;
(u32) ((be64_to_cpu(arg) >> 32) & 0xFFFFFFFF),
(u32) (be64_to_cpu(arg) & 0xFFFFFFFF));
}
- spin_lock(&host_info_lock);
+ spin_lock_irqsave(&host_info_lock, irqflags);
hi = find_host_info(host); /* search addressentry in file_info's for host */
if (hi != NULL) {
list_for_each_entry(fi, &hi->file_info_list, list) {
printk(KERN_ERR
"raw1394: arm_lock64 FAILED addr_entry not found"
" -> rcode_address_error\n");
- spin_unlock(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, irqflags);
return (RCODE_ADDRESS_ERROR);
} else {
DBGMSG("arm_lock64 addr_entry FOUND");
if (arm_addr->notification_options & ARM_LOCK) {
byte_t *buf1, *buf2;
DBGMSG("arm_lock64 -> entering notification-section");
- req = __alloc_pending_request(SLAB_ATOMIC);
+ req = __alloc_pending_request(GFP_ATOMIC);
if (!req) {
- spin_unlock(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, irqflags);
DBGMSG("arm_lock64 -> rcode_conflict_error");
return (RCODE_CONFLICT_ERROR); /* A resource conflict was detected.
The request may be retried */
}
size = sizeof(struct arm_request) + sizeof(struct arm_response) + 3 * sizeof(*store) + sizeof(struct arm_request_response); /* maximum */
- req->data = kmalloc(size, SLAB_ATOMIC);
+ req->data = kmalloc(size, GFP_ATOMIC);
if (!(req->data)) {
free_pending_request(req);
- spin_unlock(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, irqflags);
DBGMSG("arm_lock64 -> rcode_conflict_error");
return (RCODE_CONFLICT_ERROR); /* A resource conflict was detected.
The request may be retried */
sizeof(struct arm_response) + 2 * sizeof(*store));
queue_complete_req(req);
}
- spin_unlock(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, irqflags);
return (rcode);
}
return (-EINVAL);
}
/* addr-list-entry for fileinfo */
- addr = (struct arm_addr *)kmalloc(sizeof(struct arm_addr), SLAB_KERNEL);
+ addr = kmalloc(sizeof(*addr), GFP_KERNEL);
if (!addr) {
req->req.length = 0;
return (-ENOMEM);
}
/* allocation of addr_space_buffer */
- addr->addr_space_buffer = (u8 *) vmalloc(req->req.length);
+ addr->addr_space_buffer = vmalloc(req->req.length);
if (!(addr->addr_space_buffer)) {
kfree(addr);
req->req.length = 0;
addr->notification_options |= addr->client_transactions;
addr->recvb = req->req.recvb;
addr->rec_length = (u16) ((req->req.misc >> 16) & 0xFFFF);
+
spin_lock_irqsave(&host_info_lock, flags);
hi = find_host_info(fi->host);
same_host = 0;
}
if (same_host) {
/* addressrange occupied by same host */
+ spin_unlock_irqrestore(&host_info_lock, flags);
vfree(addr->addr_space_buffer);
kfree(addr);
- spin_unlock_irqrestore(&host_info_lock, flags);
return (-EALREADY);
}
/* another host with valid address-entry containing same addressrange */
}
}
}
+ spin_unlock_irqrestore(&host_info_lock, flags);
+
if (another_host) {
DBGMSG("another hosts entry is valid -> SUCCESS");
if (copy_to_user(int2ptr(req->req.recvb),
" address-range-entry is invalid -> EFAULT !!!\n");
vfree(addr->addr_space_buffer);
kfree(addr);
- spin_unlock_irqrestore(&host_info_lock, flags);
return (-EFAULT);
}
free_pending_request(req); /* immediate success or fail */
/* INSERT ENTRY */
+ spin_lock_irqsave(&host_info_lock, flags);
list_add_tail(&addr->addr_list, &fi->addr_list);
spin_unlock_irqrestore(&host_info_lock, flags);
return sizeof(struct raw1394_request);
req->req.address + req->req.length);
if (retval) {
/* INSERT ENTRY */
+ spin_lock_irqsave(&host_info_lock, flags);
list_add_tail(&addr->addr_list, &fi->addr_list);
+ spin_unlock_irqrestore(&host_info_lock, flags);
} else {
DBGMSG("arm_register failed errno: %d \n", retval);
vfree(addr->addr_space_buffer);
kfree(addr);
- spin_unlock_irqrestore(&host_info_lock, flags);
return (-EALREADY);
}
- spin_unlock_irqrestore(&host_info_lock, flags);
free_pending_request(req); /* immediate success or fail */
return sizeof(struct raw1394_request);
}
if (another_host) {
DBGMSG("delete entry from list -> success");
list_del(&addr->addr_list);
+ spin_unlock_irqrestore(&host_info_lock, flags);
vfree(addr->addr_space_buffer);
kfree(addr);
free_pending_request(req); /* immediate success or fail */
- spin_unlock_irqrestore(&host_info_lock, flags);
return sizeof(struct raw1394_request);
}
retval =
(arm_addr->end > req->req.address)) {
if (req->req.address + req->req.length <= arm_addr->end) {
offset = req->req.address - arm_addr->start;
+ spin_unlock_irqrestore(&host_info_lock, flags);
DBGMSG
("arm_get_buf copy_to_user( %08X, %p, %u )",
(u32) req->req.recvb,
arm_addr->addr_space_buffer + offset,
(u32) req->req.length);
-
if (copy_to_user
(int2ptr(req->req.recvb),
arm_addr->addr_space_buffer + offset,
- req->req.length)) {
- spin_unlock_irqrestore(&host_info_lock,
- flags);
+ req->req.length))
return (-EFAULT);
- }
- spin_unlock_irqrestore(&host_info_lock, flags);
/* We have to free the request, because we
* queue no response, and therefore nobody
* will free it. */
(arm_addr->end > req->req.address)) {
if (req->req.address + req->req.length <= arm_addr->end) {
offset = req->req.address - arm_addr->start;
+ spin_unlock_irqrestore(&host_info_lock, flags);
DBGMSG
("arm_set_buf copy_from_user( %p, %08X, %u )",
arm_addr->addr_space_buffer + offset,
(u32) req->req.sendb,
(u32) req->req.length);
-
if (copy_from_user
(arm_addr->addr_space_buffer + offset,
int2ptr(req->req.sendb),
- req->req.length)) {
- spin_unlock_irqrestore(&host_info_lock,
- flags);
+ req->req.length))
return (-EFAULT);
- }
- spin_unlock_irqrestore(&host_info_lock, flags);
- free_pending_request(req); /* we have to free the request, because we queue no response, and therefore nobody will free it */
+ /* We have to free the request, because we
+ * queue no response, and therefore nobody
+ * will free it. */
+ free_pending_request(req);
return sizeof(struct raw1394_request);
} else {
DBGMSG("arm_set_buf request exceeded mapping");
struct hpsb_packet *packet = NULL;
int retval = 0;
quadlet_t data;
+ unsigned long flags;
data = be32_to_cpu((u32) req->req.sendb);
DBGMSG("write_phypacket called - quadlet 0x%8.8x ", data);
req->packet = packet;
hpsb_set_packet_complete_task(packet,
(void (*)(void *))queue_complete_cb, req);
- spin_lock_irq(&fi->reqlists_lock);
+ spin_lock_irqsave(&fi->reqlists_lock, flags);
list_add_tail(&req->list, &fi->req_pending);
- spin_unlock_irq(&fi->reqlists_lock);
+ spin_unlock_irqrestore(&fi->reqlists_lock, flags);
packet->generation = req->req.generation;
retval = hpsb_send_packet(packet);
DBGMSG("write_phypacket send_packet called => retval: %d ", retval);
static int get_config_rom(struct file_info *fi, struct pending_request *req)
{
int ret = sizeof(struct raw1394_request);
- quadlet_t *data = kmalloc(req->req.length, SLAB_KERNEL);
+ quadlet_t *data = kmalloc(req->req.length, GFP_KERNEL);
int status;
if (!data)
static int update_config_rom(struct file_info *fi, struct pending_request *req)
{
int ret = sizeof(struct raw1394_request);
- quadlet_t *data = kmalloc(req->req.length, SLAB_KERNEL);
+ quadlet_t *data = kmalloc(req->req.length, GFP_KERNEL);
if (!data)
return -ENOMEM;
if (copy_from_user(data, int2ptr(req->req.sendb), req->req.length)) {
return -ENOMEM;
}
- cache->filled_head =
- kmalloc(sizeof(struct csr1212_cache_region), GFP_KERNEL);
+ cache->filled_head = kmalloc(sizeof(*cache->filled_head), GFP_KERNEL);
if (!cache->filled_head) {
csr1212_release_keyval(fi->csr1212_dirs[dr]);
fi->csr1212_dirs[dr] = NULL;
req->req.length)) {
csr1212_release_keyval(fi->csr1212_dirs[dr]);
fi->csr1212_dirs[dr] = NULL;
- CSR1212_FREE(cache);
ret = -EFAULT;
} else {
cache->len = req->req.length;
}
}
kfree(cache->filled_head);
- kfree(cache);
+ CSR1212_FREE(cache);
if (ret >= 0) {
/* we have to free the request, because we queue no response,
return sizeof(struct raw1394_request);
case RAW1394_REQ_ISO_SEND:
+ print_old_iso_deprecation();
return handle_iso_send(fi, req, node);
case RAW1394_REQ_ARM_REGISTER:
return reset_notification(fi, req);
case RAW1394_REQ_ISO_LISTEN:
+ print_old_iso_deprecation();
handle_iso_listen(fi, req);
return sizeof(struct raw1394_request);
struct pending_request *req;
ssize_t retval = 0;
+#ifdef CONFIG_COMPAT
+ if (count == sizeof(struct compat_raw1394_req) &&
+ sizeof(struct compat_raw1394_req) !=
+ sizeof(struct raw1394_request)) {
+ buffer = raw1394_compat_write(buffer);
+ if (IS_ERR(buffer))
+ return PTR_ERR(buffer);
+ } else
+#endif
if (count != sizeof(struct raw1394_request)) {
return -EINVAL;
}
/* only one ISO activity event may be in the queue */
if (!__rawiso_event_in_queue(fi)) {
struct pending_request *req =
- __alloc_pending_request(SLAB_ATOMIC);
+ __alloc_pending_request(GFP_ATOMIC);
if (req) {
req->file_info = fi;
/* ensure user-supplied buffer is accessible and big enough */
if (!access_ok(VERIFY_WRITE, upackets.infos,
- upackets.n_packets *
- sizeof(struct raw1394_iso_packet_info)))
+ upackets.n_packets *
+ sizeof(struct raw1394_iso_packet_info)))
return -EFAULT;
/* copy the packet_infos out */
if (copy_from_user(&upackets, uaddr, sizeof(upackets)))
return -EFAULT;
- if (upackets.n_packets > hpsb_iso_n_ready(fi->iso_handle))
+ if (upackets.n_packets >= fi->iso_handle->buf_packets)
return -EINVAL;
+ if (upackets.n_packets >= hpsb_iso_n_ready(fi->iso_handle))
+ return -EAGAIN;
+
/* ensure user-supplied buffer is accessible and big enough */
if (!access_ok(VERIFY_READ, upackets.infos,
- upackets.n_packets *
- sizeof(struct raw1394_iso_packet_info)))
+ upackets.n_packets *
+ sizeof(struct raw1394_iso_packet_info)))
return -EFAULT;
/* copy the infos structs in and queue the packets */
{
struct file_info *fi = file->private_data;
unsigned int mask = POLLOUT | POLLWRNORM;
+ unsigned long flags;
- poll_wait(file, &fi->poll_wait_complete, pt);
+ poll_wait(file, &fi->wait_complete, pt);
- spin_lock_irq(&fi->reqlists_lock);
+ spin_lock_irqsave(&fi->reqlists_lock, flags);
if (!list_empty(&fi->req_complete)) {
mask |= POLLIN | POLLRDNORM;
}
- spin_unlock_irq(&fi->reqlists_lock);
+ spin_unlock_irqrestore(&fi->reqlists_lock, flags);
return mask;
}
{
struct file_info *fi;
- fi = kmalloc(sizeof(struct file_info), SLAB_KERNEL);
- if (fi == NULL)
+ fi = kzalloc(sizeof(*fi), GFP_KERNEL);
+ if (!fi)
return -ENOMEM;
- memset(fi, 0, sizeof(struct file_info));
fi->notification = (u8) RAW1394_NOTIFY_ON; /* busreset notification */
INIT_LIST_HEAD(&fi->list);
fi->state = opened;
INIT_LIST_HEAD(&fi->req_pending);
INIT_LIST_HEAD(&fi->req_complete);
- sema_init(&fi->complete_sem, 0);
spin_lock_init(&fi->reqlists_lock);
- init_waitqueue_head(&fi->poll_wait_complete);
+ init_waitqueue_head(&fi->wait_complete);
INIT_LIST_HEAD(&fi->addr_list);
file->private_data = fi;
struct file_info *fi = file->private_data;
struct list_head *lh;
struct pending_request *req;
- int done = 0, i, fail = 0;
+ int i, fail;
int retval = 0;
struct list_head *entry;
struct arm_addr *addr = NULL;
struct arm_addr *arm_addr = NULL;
int another_host;
int csr_mod = 0;
+ unsigned long flags;
if (fi->iso_state != RAW1394_ISO_INACTIVE)
raw1394_iso_shutdown(fi);
}
}
- spin_lock_irq(&host_info_lock);
+ spin_lock_irqsave(&host_info_lock, flags);
fi->listen_channels = 0;
- spin_unlock_irq(&host_info_lock);
fail = 0;
/* set address-entries invalid */
- spin_lock_irq(&host_info_lock);
while (!list_empty(&fi->addr_list)) {
another_host = 0;
list) {
entry = fi_hlp->addr_list.next;
while (entry != &(fi_hlp->addr_list)) {
- arm_addr = list_entry(entry,
- struct
+ arm_addr = list_entry(entry, struct
arm_addr,
addr_list);
if (arm_addr->start ==
vfree(addr->addr_space_buffer);
kfree(addr);
} /* while */
- spin_unlock_irq(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, flags);
if (fail > 0) {
printk(KERN_ERR "raw1394: during addr_list-release "
"error(s) occurred \n");
}
- while (!done) {
- spin_lock_irq(&fi->reqlists_lock);
-
- while (!list_empty(&fi->req_complete)) {
- lh = fi->req_complete.next;
- list_del(lh);
-
- req = list_entry(lh, struct pending_request, list);
-
+ for (;;) {
+ /* This locked section guarantees that neither
+ * complete nor pending requests exist once i!=0 */
+ spin_lock_irqsave(&fi->reqlists_lock, flags);
+ while ((req = __next_complete_req(fi)))
free_pending_request(req);
- }
-
- if (list_empty(&fi->req_pending))
- done = 1;
- spin_unlock_irq(&fi->reqlists_lock);
+ i = list_empty(&fi->req_pending);
+ spin_unlock_irqrestore(&fi->reqlists_lock, flags);
- if (!done)
- down_interruptible(&fi->complete_sem);
+ if (i)
+ break;
+ /*
+ * Sleep until more requests can be freed.
+ *
+ * NB: We call the macro wait_event() with a condition argument
+ * with side effect. This is only possible because the side
+ * effect does not occur until the condition became true, and
+ * wait_event() won't evaluate the condition again after that.
+ */
+ wait_event(fi->wait_complete, (req = next_complete_req(fi)));
+ free_pending_request(req);
}
/* Remove any sub-trees left by user space programs */
fi->host->id);
if (fi->state == connected) {
- spin_lock_irq(&host_info_lock);
+ spin_lock_irqsave(&host_info_lock, flags);
list_del(&fi->list);
- spin_unlock_irq(&host_info_lock);
+ spin_unlock_irqrestore(&host_info_lock, flags);
put_device(&fi->host->device);
}
MODULE_DEVICE_TABLE(ieee1394, raw1394_id_table);
static struct hpsb_protocol_driver raw1394_driver = {
- .name = "raw1394 Driver",
+ .name = "raw1394",
.id_table = raw1394_id_table,
- .driver = {
- .name = "raw1394",
- .bus = &ieee1394_bus_type,
- },
};
/******************************************************************************/
.write = raw1394_write,
.mmap = raw1394_mmap,
.ioctl = raw1394_ioctl,
+ // .compat_ioctl = ... someone needs to do this
.poll = raw1394_poll,
.open = raw1394_open,
.release = raw1394_release,
hpsb_register_highlevel(&raw1394_highlevel);
- if (IS_ERR(class_simple_device_add(hpsb_protocol_class, MKDEV(
- IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16),
- NULL, RAW1394_DEVICE_NAME))) {
+ if (IS_ERR
+ (class_device_create
+ (hpsb_protocol_class, NULL,
+ MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16), NULL,
+ RAW1394_DEVICE_NAME))) {
ret = -EFAULT;
goto out_unreg;
}
-
- devfs_mk_cdev(MKDEV(
- IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16),
- S_IFCHR | S_IRUSR | S_IWUSR, RAW1394_DEVICE_NAME);
cdev_init(&raw1394_cdev, &raw1394_fops);
raw1394_cdev.owner = THIS_MODULE;
goto out;
-out_dev:
- devfs_remove(RAW1394_DEVICE_NAME);
- class_simple_device_remove(MKDEV(
- IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16));
-out_unreg:
+ out_dev:
+ class_device_destroy(hpsb_protocol_class,
+ MKDEV(IEEE1394_MAJOR,
+ IEEE1394_MINOR_BLOCK_RAW1394 * 16));
+ out_unreg:
hpsb_unregister_highlevel(&raw1394_highlevel);
-out:
+ out:
return ret;
}
static void __exit cleanup_raw1394(void)
{
- class_simple_device_remove(MKDEV(
- IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16));
+ class_device_destroy(hpsb_protocol_class,
+ MKDEV(IEEE1394_MAJOR,
+ IEEE1394_MINOR_BLOCK_RAW1394 * 16));
cdev_del(&raw1394_cdev);
- devfs_remove(RAW1394_DEVICE_NAME);
hpsb_unregister_highlevel(&raw1394_highlevel);
hpsb_unregister_protocol(&raw1394_driver);
}
module_init(init_raw1394);
module_exit(cleanup_raw1394);
MODULE_LICENSE("GPL");
-MODULE_ALIAS_CHARDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16);
git://git.onelab.eu / linux-2.6.git / blobdiff