diff options
Diffstat (limited to 'drivers/firewire/fw-transaction.h')
-rw-r--r-- | drivers/firewire/fw-transaction.h | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/drivers/firewire/fw-transaction.h b/drivers/firewire/fw-transaction.h index 219094e38542..2ae1b0d6cb7b 100644 --- a/drivers/firewire/fw-transaction.h +++ b/drivers/firewire/fw-transaction.h | |||
@@ -19,14 +19,15 @@ | |||
19 | #ifndef __fw_transaction_h | 19 | #ifndef __fw_transaction_h |
20 | #define __fw_transaction_h | 20 | #define __fw_transaction_h |
21 | 21 | ||
22 | #include <linux/completion.h> | ||
22 | #include <linux/device.h> | 23 | #include <linux/device.h> |
23 | #include <linux/dma-mapping.h> | 24 | #include <linux/dma-mapping.h> |
24 | #include <linux/firewire-constants.h> | 25 | #include <linux/firewire-constants.h> |
26 | #include <linux/kref.h> | ||
25 | #include <linux/list.h> | 27 | #include <linux/list.h> |
26 | #include <linux/spinlock_types.h> | 28 | #include <linux/spinlock_types.h> |
27 | #include <linux/timer.h> | 29 | #include <linux/timer.h> |
28 | #include <linux/workqueue.h> | 30 | #include <linux/workqueue.h> |
29 | #include <asm/atomic.h> | ||
30 | 31 | ||
31 | #define TCODE_IS_READ_REQUEST(tcode) (((tcode) & ~1) == 4) | 32 | #define TCODE_IS_READ_REQUEST(tcode) (((tcode) & ~1) == 4) |
32 | #define TCODE_IS_BLOCK_PACKET(tcode) (((tcode) & 1) != 0) | 33 | #define TCODE_IS_BLOCK_PACKET(tcode) (((tcode) & 1) != 0) |
@@ -219,7 +220,8 @@ extern struct bus_type fw_bus_type; | |||
219 | struct fw_card { | 220 | struct fw_card { |
220 | const struct fw_card_driver *driver; | 221 | const struct fw_card_driver *driver; |
221 | struct device *device; | 222 | struct device *device; |
222 | atomic_t device_count; | 223 | struct kref kref; |
224 | struct completion done; | ||
223 | 225 | ||
224 | int node_id; | 226 | int node_id; |
225 | int generation; | 227 | int generation; |
@@ -260,6 +262,20 @@ struct fw_card { | |||
260 | int bm_generation; | 262 | int bm_generation; |
261 | }; | 263 | }; |
262 | 264 | ||
265 | static inline struct fw_card *fw_card_get(struct fw_card *card) | ||
266 | { | ||
267 | kref_get(&card->kref); | ||
268 | |||
269 | return card; | ||
270 | } | ||
271 | |||
272 | void fw_card_release(struct kref *kref); | ||
273 | |||
274 | static inline void fw_card_put(struct fw_card *card) | ||
275 | { | ||
276 | kref_put(&card->kref, fw_card_release); | ||
277 | } | ||
278 | |||
263 | /* | 279 | /* |
264 | * The iso packet format allows for an immediate header/payload part | 280 | * The iso packet format allows for an immediate header/payload part |
265 | * stored in 'header' immediately after the packet info plus an | 281 | * stored in 'header' immediately after the packet info plus an |