#ifndef _FIREWIRE_CORE_H
#define _FIREWIRE_CORE_H
-#include <linux/dma-mapping.h>
#include <linux/fs.h>
#include <linux/list.h>
#include <linux/idr.h>
* enable the PHY or set the link_on bit and initiate a bus
* reset.
*/
- int (*enable)(struct fw_card *card, u32 *config_rom, size_t length);
+ int (*enable)(struct fw_card *card,
+ const __be32 *config_rom, size_t length);
int (*update_phy_reg)(struct fw_card *card, int address,
int clear_bits, int set_bits);
/*
* Update the config rom for an enabled card. This function
* should change the config rom that is presented on the bus
- * an initiate a bus reset.
+ * and initiate a bus reset.
*/
int (*set_config_rom)(struct fw_card *card,
- u32 *config_rom, size_t length);
+ const __be32 *config_rom, size_t length);
void (*send_request)(struct fw_card *card, struct fw_packet *packet);
void (*send_response)(struct fw_card *card, struct fw_packet *packet);
u32 max_receive, u32 link_speed, u64 guid);
void fw_core_remove_card(struct fw_card *card);
int fw_core_initiate_bus_reset(struct fw_card *card, int short_reset);
-int fw_compute_block_crc(u32 *block);
+int fw_compute_block_crc(__be32 *block);
void fw_schedule_bm_work(struct fw_card *card, unsigned long delay);
-struct fw_descriptor {
- struct list_head link;
- size_t length;
- u32 immediate;
- u32 key;
- const u32 *data;
-};
+static inline struct fw_card *fw_card_get(struct fw_card *card)
+{
+ kref_get(&card->kref);
-int fw_core_add_descriptor(struct fw_descriptor *desc);
-void fw_core_remove_descriptor(struct fw_descriptor *desc);
+ return card;
+}
+
+void fw_card_release(struct kref *kref);
+
+static inline void fw_card_put(struct fw_card *card)
+{
+ kref_put(&card->kref, fw_card_release);
+}
/* -cdev */
/* -iso */
-/*
- * The iso packet format allows for an immediate header/payload part
- * stored in 'header' immediately after the packet info plus an
- * indirect payload part that is pointer to by the 'payload' field.
- * Applications can use one or the other or both to implement simple
- * low-bandwidth streaming (e.g. audio) or more advanced
- * scatter-gather streaming (e.g. assembling video frame automatically).
- */
-struct fw_iso_packet {
- u16 payload_length; /* Length of indirect payload. */
- u32 interrupt:1; /* Generate interrupt on this packet */
- u32 skip:1; /* Set to not send packet at all. */
- u32 tag:2;
- u32 sy:4;
- u32 header_length:8; /* Length of immediate header. */
- u32 header[0];
-};
-
-#define FW_ISO_CONTEXT_TRANSMIT 0
-#define FW_ISO_CONTEXT_RECEIVE 1
-
-#define FW_ISO_CONTEXT_MATCH_TAG0 1
-#define FW_ISO_CONTEXT_MATCH_TAG1 2
-#define FW_ISO_CONTEXT_MATCH_TAG2 4
-#define FW_ISO_CONTEXT_MATCH_TAG3 8
-#define FW_ISO_CONTEXT_MATCH_ALL_TAGS 15
-
-/*
- * An iso buffer is just a set of pages mapped for DMA in the
- * specified direction. Since the pages are to be used for DMA, they
- * are not mapped into the kernel virtual address space. We store the
- * DMA address in the page private. The helper function
- * fw_iso_buffer_map() will map the pages into a given vma.
- */
-struct fw_iso_buffer {
- enum dma_data_direction direction;
- struct page **pages;
- int page_count;
-};
-
-typedef void (*fw_iso_callback_t)(struct fw_iso_context *context,
- u32 cycle, size_t header_length,
- void *header, void *data);
-
-struct fw_iso_context {
- struct fw_card *card;
- int type;
- int channel;
- int speed;
- size_t header_size;
- fw_iso_callback_t callback;
- void *callback_data;
-};
-
-int fw_iso_buffer_init(struct fw_iso_buffer *buffer, struct fw_card *card,
- int page_count, enum dma_data_direction direction);
int fw_iso_buffer_map(struct fw_iso_buffer *buffer, struct vm_area_struct *vma);
-void fw_iso_buffer_destroy(struct fw_iso_buffer *buffer, struct fw_card *card);
-
-struct fw_iso_context *fw_iso_context_create(struct fw_card *card,
- int type, int channel, int speed, size_t header_size,
- fw_iso_callback_t callback, void *callback_data);
-int fw_iso_context_queue(struct fw_iso_context *ctx,
- struct fw_iso_packet *packet,
- struct fw_iso_buffer *buffer,
- unsigned long payload);
-int fw_iso_context_start(struct fw_iso_context *ctx,
- int cycle, int sync, int tags);
-int fw_iso_context_stop(struct fw_iso_context *ctx);
-void fw_iso_context_destroy(struct fw_iso_context *ctx);
-
void fw_iso_resource_manage(struct fw_card *card, int generation,
- u64 channels_mask, int *channel, int *bandwidth, bool allocate);
+ u64 channels_mask, int *channel, int *bandwidth,
+ bool allocate, __be32 buffer[2]);
/* -topology */
void fw_send_phy_config(struct fw_card *card,
int node_id, int generation, int gap_count);
-static inline int fw_stream_packet_destination_id(int tag, int channel, int sy)
-{
- return tag << 14 | channel << 8 | sy;
-}
-
#endif /* _FIREWIRE_CORE_H */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff