Adjust tabulators, line wraps, empty lines, and comment style.
Update comments in ieee1394_transactions.h and highlevel.h.
Fix typo in comment in csr.h.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
#include "csr1212.h"
-#define CSR_REGISTER_BASE 0xfffff0000000ULL
+#define CSR_REGISTER_BASE 0xfffff0000000ULL
/* register offsets relative to CSR_REGISTER_BASE */
-#define CSR_STATE_CLEAR 0x0
-#define CSR_STATE_SET 0x4
-#define CSR_NODE_IDS 0x8
-#define CSR_RESET_START 0xc
-#define CSR_SPLIT_TIMEOUT_HI 0x18
-#define CSR_SPLIT_TIMEOUT_LO 0x1c
-#define CSR_CYCLE_TIME 0x200
-#define CSR_BUS_TIME 0x204
-#define CSR_BUSY_TIMEOUT 0x210
-#define CSR_BUS_MANAGER_ID 0x21c
-#define CSR_BANDWIDTH_AVAILABLE 0x220
-#define CSR_CHANNELS_AVAILABLE 0x224
-#define CSR_CHANNELS_AVAILABLE_HI 0x224
-#define CSR_CHANNELS_AVAILABLE_LO 0x228
-#define CSR_BROADCAST_CHANNEL 0x234
-#define CSR_CONFIG_ROM 0x400
-#define CSR_CONFIG_ROM_END 0x800
-#define CSR_FCP_COMMAND 0xB00
-#define CSR_FCP_RESPONSE 0xD00
-#define CSR_FCP_END 0xF00
-#define CSR_TOPOLOGY_MAP 0x1000
-#define CSR_TOPOLOGY_MAP_END 0x1400
-#define CSR_SPEED_MAP 0x2000
-#define CSR_SPEED_MAP_END 0x3000
+#define CSR_STATE_CLEAR 0x0
+#define CSR_STATE_SET 0x4
+#define CSR_NODE_IDS 0x8
+#define CSR_RESET_START 0xc
+#define CSR_SPLIT_TIMEOUT_HI 0x18
+#define CSR_SPLIT_TIMEOUT_LO 0x1c
+#define CSR_CYCLE_TIME 0x200
+#define CSR_BUS_TIME 0x204
+#define CSR_BUSY_TIMEOUT 0x210
+#define CSR_BUS_MANAGER_ID 0x21c
+#define CSR_BANDWIDTH_AVAILABLE 0x220
+#define CSR_CHANNELS_AVAILABLE 0x224
+#define CSR_CHANNELS_AVAILABLE_HI 0x224
+#define CSR_CHANNELS_AVAILABLE_LO 0x228
+#define CSR_BROADCAST_CHANNEL 0x234
+#define CSR_CONFIG_ROM 0x400
+#define CSR_CONFIG_ROM_END 0x800
+#define CSR_FCP_COMMAND 0xB00
+#define CSR_FCP_RESPONSE 0xD00
+#define CSR_FCP_END 0xF00
+#define CSR_TOPOLOGY_MAP 0x1000
+#define CSR_TOPOLOGY_MAP_END 0x1400
+#define CSR_SPEED_MAP 0x2000
+#define CSR_SPEED_MAP_END 0x3000
/* IEEE 1394 bus specific Configuration ROM Key IDs */
#define IEEE1394_KV_ID_POWER_REQUIREMENTS (0x30)
-/* IEEE 1394 Bus Inforamation Block specifics */
+/* IEEE 1394 Bus Information Block specifics */
#define CSR_BUS_INFO_SIZE (5 * sizeof(quadlet_t))
-#define CSR_IRMC_SHIFT 31
-#define CSR_CMC_SHIFT 30
-#define CSR_ISC_SHIFT 29
-#define CSR_BMC_SHIFT 28
-#define CSR_PMC_SHIFT 27
-#define CSR_CYC_CLK_ACC_SHIFT 16
-#define CSR_MAX_REC_SHIFT 12
-#define CSR_MAX_ROM_SHIFT 8
-#define CSR_GENERATION_SHIFT 4
+#define CSR_IRMC_SHIFT 31
+#define CSR_CMC_SHIFT 30
+#define CSR_ISC_SHIFT 29
+#define CSR_BMC_SHIFT 28
+#define CSR_PMC_SHIFT 27
+#define CSR_CYC_CLK_ACC_SHIFT 16
+#define CSR_MAX_REC_SHIFT 12
+#define CSR_MAX_ROM_SHIFT 8
+#define CSR_GENERATION_SHIFT 4
#define CSR_SET_BUS_INFO_GENERATION(csr, gen) \
((csr)->bus_info_data[2] = \
cpu_to_be32((be32_to_cpu((csr)->bus_info_data[2]) & \
- ~(0xf << CSR_GENERATION_SHIFT)) | \
+ ~(0xf << CSR_GENERATION_SHIFT)) | \
(gen) << CSR_GENERATION_SHIFT))
struct csr_control {
- spinlock_t lock;
-
- quadlet_t state;
- quadlet_t node_ids;
- quadlet_t split_timeout_hi, split_timeout_lo;
- unsigned long expire; // Calculated from split_timeout
- quadlet_t cycle_time;
- quadlet_t bus_time;
- quadlet_t bus_manager_id;
- quadlet_t bandwidth_available;
- quadlet_t channels_available_hi, channels_available_lo;
+ spinlock_t lock;
+
+ quadlet_t state;
+ quadlet_t node_ids;
+ quadlet_t split_timeout_hi, split_timeout_lo;
+ unsigned long expire; /* Calculated from split_timeout */
+ quadlet_t cycle_time;
+ quadlet_t bus_time;
+ quadlet_t bus_manager_id;
+ quadlet_t bandwidth_available;
+ quadlet_t channels_available_hi, channels_available_lo;
quadlet_t broadcast_channel;
/* Bus Info */
struct csr1212_csr *rom;
- quadlet_t topology_map[256];
- quadlet_t speed_map[1024];
+ quadlet_t topology_map[256];
+ quadlet_t speed_map[1024];
};
extern struct csr1212_bus_ops csr_bus_ops;
#include <linux/pci.h>
#include <asm/scatterlist.h>
-/* struct dma_prog_region
-
- a small, physically-contiguous DMA buffer with random-access,
- synchronous usage characteristics
-*/
-
+/**
+ * struct dma_prog_region - small contiguous DMA buffer
+ * @kvirt: kernel virtual address
+ * @dev: PCI device
+ * @n_pages: number of kernel pages
+ * @bus_addr: base bus address
+ *
+ * a small, physically contiguous DMA buffer with random-access, synchronous
+ * usage characteristics
+ */
struct dma_prog_region {
- unsigned char *kvirt; /* kernel virtual address */
- struct pci_dev *dev; /* PCI device */
- unsigned int n_pages; /* # of kernel pages */
- dma_addr_t bus_addr; /* base bus address */
+ unsigned char *kvirt;
+ struct pci_dev *dev;
+ unsigned int n_pages;
+ dma_addr_t bus_addr;
};
/* clear out all fields but do not allocate any memory */
void dma_prog_region_init(struct dma_prog_region *prog);
-int dma_prog_region_alloc(struct dma_prog_region *prog, unsigned long n_bytes, struct pci_dev *dev);
+int dma_prog_region_alloc(struct dma_prog_region *prog, unsigned long n_bytes,
+ struct pci_dev *dev);
void dma_prog_region_free(struct dma_prog_region *prog);
-static inline dma_addr_t dma_prog_region_offset_to_bus(struct dma_prog_region *prog, unsigned long offset)
+static inline dma_addr_t dma_prog_region_offset_to_bus(
+ struct dma_prog_region *prog, unsigned long offset)
{
return prog->bus_addr + offset;
}
-/* struct dma_region
-
- a large, non-physically-contiguous DMA buffer with streaming,
- asynchronous usage characteristics
-*/
-
+/**
+ * struct dma_region - large non-contiguous DMA buffer
+ * @virt: kernel virtual address
+ * @dev: PCI device
+ * @n_pages: number of kernel pages
+ * @n_dma_pages: number of IOMMU pages
+ * @sglist: IOMMU mapping
+ * @direction: PCI_DMA_TODEVICE, etc.
+ *
+ * a large, non-physically-contiguous DMA buffer with streaming, asynchronous
+ * usage characteristics
+ */
struct dma_region {
- unsigned char *kvirt; /* kernel virtual address */
- struct pci_dev *dev; /* PCI device */
- unsigned int n_pages; /* # of kernel pages */
- unsigned int n_dma_pages; /* # of IOMMU pages */
- struct scatterlist *sglist; /* IOMMU mapping */
- int direction; /* PCI_DMA_TODEVICE, etc */
+ unsigned char *kvirt;
+ struct pci_dev *dev;
+ unsigned int n_pages;
+ unsigned int n_dma_pages;
+ struct scatterlist *sglist;
+ int direction;
};
/* clear out all fields but do not allocate anything */
void dma_region_init(struct dma_region *dma);
/* allocate the buffer and map it to the IOMMU */
-int dma_region_alloc(struct dma_region *dma, unsigned long n_bytes, struct pci_dev *dev, int direction);
+int dma_region_alloc(struct dma_region *dma, unsigned long n_bytes,
+ struct pci_dev *dev, int direction);
/* unmap and free the buffer */
void dma_region_free(struct dma_region *dma);
/* sync the CPU's view of the buffer */
-void dma_region_sync_for_cpu(struct dma_region *dma, unsigned long offset, unsigned long len);
+void dma_region_sync_for_cpu(struct dma_region *dma, unsigned long offset,
+ unsigned long len);
+
/* sync the IO bus' view of the buffer */
-void dma_region_sync_for_device(struct dma_region *dma, unsigned long offset, unsigned long len);
+void dma_region_sync_for_device(struct dma_region *dma, unsigned long offset,
+ unsigned long len);
/* map the buffer into a user space process */
-int dma_region_mmap(struct dma_region *dma, struct file *file, struct vm_area_struct *vma);
+int dma_region_mmap(struct dma_region *dma, struct file *file,
+ struct vm_area_struct *vma);
/* macro to index into a DMA region (or dma_prog_region) */
-#define dma_region_i(_dma, _type, _index) ( ((_type*) ((_dma)->kvirt)) + (_index) )
+#define dma_region_i(_dma, _type, _index) \
+ ( ((_type*) ((_dma)->kvirt)) + (_index) )
/* return the DMA bus address of the byte with the given offset
- relative to the beginning of the dma_region */
-dma_addr_t dma_region_offset_to_bus(struct dma_region *dma, unsigned long offset);
+ * relative to the beginning of the dma_region */
+dma_addr_t dma_region_offset_to_bus(struct dma_region *dma,
+ unsigned long offset);
#endif /* IEEE1394_DMA_H */
-
#ifndef IEEE1394_HIGHLEVEL_H
#define IEEE1394_HIGHLEVEL_H
-
+/* internal to ieee1394 core */
struct hpsb_address_serve {
- struct list_head host_list; /* per host list */
-
- struct list_head hl_list; /* hpsb_highlevel list */
-
- struct hpsb_address_ops *op;
-
+ struct list_head host_list; /* per host list */
+ struct list_head hl_list; /* hpsb_highlevel list */
+ struct hpsb_address_ops *op;
struct hpsb_host *host;
-
- /* first address handled and first address behind, quadlet aligned */
- u64 start, end;
+ u64 start; /* first address handled, quadlet aligned */
+ u64 end; /* first address behind, quadlet aligned */
};
-
-/*
- * The above structs are internal to highlevel driver handling. Only the
- * following structures are of interest to actual highlevel drivers.
- */
+/* Only the following structures are of interest to actual highlevel drivers. */
struct hpsb_highlevel {
struct module *owner;
const char *name;
- /* Any of the following pointers can legally be NULL, except for
- * iso_receive which can only be NULL when you don't request
- * channels. */
+ /* Any of the following pointers can legally be NULL, except for
+ * iso_receive which can only be NULL when you don't request
+ * channels. */
- /* New host initialized. Will also be called during
- * hpsb_register_highlevel for all hosts already installed. */
- void (*add_host) (struct hpsb_host *host);
+ /* New host initialized. Will also be called during
+ * hpsb_register_highlevel for all hosts already installed. */
+ void (*add_host)(struct hpsb_host *host);
- /* Host about to be removed. Will also be called during
- * hpsb_unregister_highlevel once for each host. */
- void (*remove_host) (struct hpsb_host *host);
+ /* Host about to be removed. Will also be called during
+ * hpsb_unregister_highlevel once for each host. */
+ void (*remove_host)(struct hpsb_host *host);
- /* Host experienced bus reset with possible configuration changes.
+ /* Host experienced bus reset with possible configuration changes.
* Note that this one may occur during interrupt/bottom half handling.
* You can not expect to be able to do stock hpsb_reads. */
- void (*host_reset) (struct hpsb_host *host);
+ void (*host_reset)(struct hpsb_host *host);
- /* An isochronous packet was received. Channel contains the channel
- * number for your convenience, it is also contained in the included
- * packet header (first quadlet, CRCs are missing). You may get called
- * for channel/host combinations you did not request. */
- void (*iso_receive) (struct hpsb_host *host, int channel,
- quadlet_t *data, size_t length);
+ /* An isochronous packet was received. Channel contains the channel
+ * number for your convenience, it is also contained in the included
+ * packet header (first quadlet, CRCs are missing). You may get called
+ * for channel/host combinations you did not request. */
+ void (*iso_receive)(struct hpsb_host *host, int channel,
+ quadlet_t *data, size_t length);
- /* A write request was received on either the FCP_COMMAND (direction =
- * 0) or the FCP_RESPONSE (direction = 1) register. The cts arg
- * contains the cts field (first byte of data). */
- void (*fcp_request) (struct hpsb_host *host, int nodeid, int direction,
- int cts, u8 *data, size_t length);
+ /* A write request was received on either the FCP_COMMAND (direction =
+ * 0) or the FCP_RESPONSE (direction = 1) register. The cts arg
+ * contains the cts field (first byte of data). */
+ void (*fcp_request)(struct hpsb_host *host, int nodeid, int direction,
+ int cts, u8 *data, size_t length);
/* These are initialized by the subsystem when the
* hpsb_higlevel is registered. */
};
struct hpsb_address_ops {
- /*
- * Null function pointers will make the respective operation complete
- * with RCODE_TYPE_ERROR. Makes for easy to implement read-only
- * registers (just leave everything but read NULL).
- *
- * All functions shall return appropriate IEEE 1394 rcodes.
- */
-
- /* These functions have to implement block reads for themselves. */
- /* These functions either return a response code
- or a negative number. In the first case a response will be generated; in the
- later case, no response will be sent and the driver, that handled the request
- will send the response itself
- */
- int (*read) (struct hpsb_host *host, int nodeid, quadlet_t *buffer,
- u64 addr, size_t length, u16 flags);
- int (*write) (struct hpsb_host *host, int nodeid, int destid,
- quadlet_t *data, u64 addr, size_t length, u16 flags);
-
- /* Lock transactions: write results of ext_tcode operation into
- * *store. */
- int (*lock) (struct hpsb_host *host, int nodeid, quadlet_t *store,
- u64 addr, quadlet_t data, quadlet_t arg, int ext_tcode, u16 flags);
- int (*lock64) (struct hpsb_host *host, int nodeid, octlet_t *store,
- u64 addr, octlet_t data, octlet_t arg, int ext_tcode, u16 flags);
+ /*
+ * Null function pointers will make the respective operation complete
+ * with RCODE_TYPE_ERROR. Makes for easy to implement read-only
+ * registers (just leave everything but read NULL).
+ *
+ * All functions shall return appropriate IEEE 1394 rcodes.
+ */
+
+ /* These functions have to implement block reads for themselves.
+ *
+ * These functions either return a response code or a negative number.
+ * In the first case a response will be generated. In the latter case,
+ * no response will be sent and the driver which handled the request
+ * will send the response itself. */
+ int (*read)(struct hpsb_host *host, int nodeid, quadlet_t *buffer,
+ u64 addr, size_t length, u16 flags);
+ int (*write)(struct hpsb_host *host, int nodeid, int destid,
+ quadlet_t *data, u64 addr, size_t length, u16 flags);
+
+ /* Lock transactions: write results of ext_tcode operation into
+ * *store. */
+ int (*lock)(struct hpsb_host *host, int nodeid, quadlet_t *store,
+ u64 addr, quadlet_t data, quadlet_t arg, int ext_tcode,
+ u16 flags);
+ int (*lock64)(struct hpsb_host *host, int nodeid, octlet_t *store,
+ u64 addr, octlet_t data, octlet_t arg, int ext_tcode,
+ u16 flags);
};
-
void highlevel_add_host(struct hpsb_host *host);
void highlevel_remove_host(struct hpsb_host *host);
void highlevel_host_reset(struct hpsb_host *host);
-
-/* these functions are called to handle transactions. They are called, when
- a packet arrives. The flags argument contains the second word of the first header
- quadlet of the incoming packet (containing transaction label, retry code,
- transaction code and priority). These functions either return a response code
- or a negative number. In the first case a response will be generated; in the
- later case, no response will be sent and the driver, that handled the request
- will send the response itself.
-*/
-int highlevel_read(struct hpsb_host *host, int nodeid, void *data,
- u64 addr, unsigned int length, u16 flags);
-int highlevel_write(struct hpsb_host *host, int nodeid, int destid,
- void *data, u64 addr, unsigned int length, u16 flags);
+/*
+ * These functions are called to handle transactions. They are called when a
+ * packet arrives. The flags argument contains the second word of the first
+ * header quadlet of the incoming packet (containing transaction label, retry
+ * code, transaction code and priority). These functions either return a
+ * response code or a negative number. In the first case a response will be
+ * generated. In the latter case, no response will be sent and the driver which
+ * handled the request will send the response itself.
+ */
+int highlevel_read(struct hpsb_host *host, int nodeid, void *data, u64 addr,
+ unsigned int length, u16 flags);
+int highlevel_write(struct hpsb_host *host, int nodeid, int destid, void *data,
+ u64 addr, unsigned int length, u16 flags);
int highlevel_lock(struct hpsb_host *host, int nodeid, quadlet_t *store,
- u64 addr, quadlet_t data, quadlet_t arg, int ext_tcode, u16 flags);
+ u64 addr, quadlet_t data, quadlet_t arg, int ext_tcode,
+ u16 flags);
int highlevel_lock64(struct hpsb_host *host, int nodeid, octlet_t *store,
- u64 addr, octlet_t data, octlet_t arg, int ext_tcode, u16 flags);
+ u64 addr, octlet_t data, octlet_t arg, int ext_tcode,
+ u16 flags);
-void highlevel_iso_receive(struct hpsb_host *host, void *data,
- size_t length);
+void highlevel_iso_receive(struct hpsb_host *host, void *data, size_t length);
void highlevel_fcp_request(struct hpsb_host *host, int nodeid, int direction,
- void *data, size_t length);
-
+ void *data, size_t length);
/*
* Register highlevel driver. The name pointer has to stay valid at all times
/*
* Register handlers for host address spaces. Start and end are 48 bit pointers
- * and have to be quadlet aligned (end points to the first address behind the
- * handled addresses. This function can be called multiple times for a single
- * hpsb_highlevel to implement sparse register sets. The requested region must
- * not overlap any previously allocated region, otherwise registering will fail.
+ * and have to be quadlet aligned. Argument "end" points to the first address
+ * behind the handled addresses. This function can be called multiple times for
+ * a single hpsb_highlevel to implement sparse register sets. The requested
+ * region must not overlap any previously allocated region, otherwise
+ * registering will fail.
*
- * It returns true for successful allocation. There is no unregister function,
- * all address spaces are deallocated together with the hpsb_highlevel.
+ * It returns true for successful allocation. Address spaces can be
+ * unregistered with hpsb_unregister_addrspace. All remaining address spaces
+ * are automatically deallocated together with the hpsb_highlevel.
*/
u64 hpsb_allocate_and_register_addrspace(struct hpsb_highlevel *hl,
struct hpsb_host *host,
u64 size, u64 alignment,
u64 start, u64 end);
int hpsb_register_addrspace(struct hpsb_highlevel *hl, struct hpsb_host *host,
- struct hpsb_address_ops *ops, u64 start, u64 end);
-
+ struct hpsb_address_ops *ops, u64 start, u64 end);
int hpsb_unregister_addrspace(struct hpsb_highlevel *hl, struct hpsb_host *host,
- u64 start);
+ u64 start);
/*
* Enable or disable receving a certain isochronous channel through the
* iso_receive op.
*/
int hpsb_listen_channel(struct hpsb_highlevel *hl, struct hpsb_host *host,
- unsigned int channel);
+ unsigned int channel);
void hpsb_unlisten_channel(struct hpsb_highlevel *hl, struct hpsb_host *host,
- unsigned int channel);
-
+ unsigned int channel);
/* Retrieve a hostinfo pointer bound to this driver/host */
void *hpsb_get_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host);
void hpsb_destroy_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host);
/* Set an alternate lookup key for the hostinfo bound to this driver/host */
-void hpsb_set_hostinfo_key(struct hpsb_highlevel *hl, struct hpsb_host *host, unsigned long key);
+void hpsb_set_hostinfo_key(struct hpsb_highlevel *hl, struct hpsb_host *host,
+ unsigned long key);
-/* Retrieve the alternate lookup key for the hostinfo bound to this driver/host */
-unsigned long hpsb_get_hostinfo_key(struct hpsb_highlevel *hl, struct hpsb_host *host);
+/* Retrieve the alternate lookup key for the hostinfo bound to this
+ * driver/host */
+unsigned long hpsb_get_hostinfo_key(struct hpsb_highlevel *hl,
+ struct hpsb_host *host);
/* Retrieve a hostinfo pointer bound to this driver using its alternate key */
void *hpsb_get_hostinfo_bykey(struct hpsb_highlevel *hl, unsigned long key);
/* Set the hostinfo pointer to something useful. Usually follows a call to
* hpsb_create_hostinfo, where the size is 0. */
-int hpsb_set_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host, void *data);
+int hpsb_set_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host,
+ void *data);
/* Retrieve hpsb_host using a highlevel handle and a key */
-struct hpsb_host *hpsb_get_host_bykey(struct hpsb_highlevel *hl, unsigned long key);
+struct hpsb_host *hpsb_get_host_bykey(struct hpsb_highlevel *hl,
+ unsigned long key);
#endif /* IEEE1394_HIGHLEVEL_H */
enum isoctl_cmd {
/* rawiso API - see iso.h for the meanings of these commands
- (they correspond exactly to the hpsb_iso_* API functions)
+ * (they correspond exactly to the hpsb_iso_* API functions)
* INIT = allocate resources
* START = begin transmission/reception
* STOP = halt transmission/reception
/* The hardware driver may optionally support a function that is used
* to set the hardware ConfigROM if the hardware supports handling
* reads to the ConfigROM on its own. */
- void (*set_hw_config_rom) (struct hpsb_host *host, quadlet_t *config_rom);
+ void (*set_hw_config_rom)(struct hpsb_host *host,
+ quadlet_t *config_rom);
/* This function shall implement packet transmission based on
* packet->type. It shall CRC both parts of the packet (unless
* called. Return 0 on success, negative errno on failure.
* NOTE: The function must be callable in interrupt context.
*/
- int (*transmit_packet) (struct hpsb_host *host,
- struct hpsb_packet *packet);
+ int (*transmit_packet)(struct hpsb_host *host,
+ struct hpsb_packet *packet);
/* This function requests miscellanous services from the driver, see
* above for command codes and expected actions. Return -1 for unknown
* command, though that should never happen.
*/
- int (*devctl) (struct hpsb_host *host, enum devctl_cmd command, int arg);
+ int (*devctl)(struct hpsb_host *host, enum devctl_cmd command, int arg);
/* ISO transmission/reception functions. Return 0 on success, -1
* (or -EXXX errno code) on failure. If the low-level driver does not
* support the new ISO API, set isoctl to NULL.
*/
- int (*isoctl) (struct hpsb_iso *iso, enum isoctl_cmd command, unsigned long arg);
+ int (*isoctl)(struct hpsb_iso *iso, enum isoctl_cmd command,
+ unsigned long arg);
/* This function is mainly to redirect local CSR reads/locks to the iso
* management registers (bus manager id, bandwidth available, channels
quadlet_t data, quadlet_t compare);
};
-
struct hpsb_host *hpsb_alloc_host(struct hpsb_host_driver *drv, size_t extra,
struct device *dev);
int hpsb_add_host(struct hpsb_host *host);
-/* Base file for all ieee1394 ioctl's. Linux-1394 has allocated base '#'
- * with a range of 0x00-0x3f. */
+/*
+ * Base file for all ieee1394 ioctl's.
+ * Linux-1394 has allocated base '#' with a range of 0x00-0x3f.
+ */
#ifndef __IEEE1394_IOCTL_H
#define __IEEE1394_IOCTL_H
_IOW ('#', 0x27, struct raw1394_iso_packets)
#define RAW1394_IOC_ISO_XMIT_SYNC \
_IO ('#', 0x28)
-#define RAW1394_IOC_ISO_RECV_FLUSH \
+#define RAW1394_IOC_ISO_RECV_FLUSH \
_IO ('#', 0x29)
-
#endif /* __IEEE1394_IOCTL_H */
#ifndef _IEEE1394_IEEE1394_H
#define _IEEE1394_IEEE1394_H
-#define TCODE_WRITEQ 0x0
-#define TCODE_WRITEB 0x1
-#define TCODE_WRITE_RESPONSE 0x2
-#define TCODE_READQ 0x4
-#define TCODE_READB 0x5
-#define TCODE_READQ_RESPONSE 0x6
-#define TCODE_READB_RESPONSE 0x7
-#define TCODE_CYCLE_START 0x8
-#define TCODE_LOCK_REQUEST 0x9
-#define TCODE_ISO_DATA 0xa
-#define TCODE_STREAM_DATA 0xa
-#define TCODE_LOCK_RESPONSE 0xb
-
-#define RCODE_COMPLETE 0x0
-#define RCODE_CONFLICT_ERROR 0x4
-#define RCODE_DATA_ERROR 0x5
-#define RCODE_TYPE_ERROR 0x6
-#define RCODE_ADDRESS_ERROR 0x7
-
-#define EXTCODE_MASK_SWAP 0x1
-#define EXTCODE_COMPARE_SWAP 0x2
-#define EXTCODE_FETCH_ADD 0x3
-#define EXTCODE_LITTLE_ADD 0x4
-#define EXTCODE_BOUNDED_ADD 0x5
-#define EXTCODE_WRAP_ADD 0x6
-
-#define ACK_COMPLETE 0x1
-#define ACK_PENDING 0x2
-#define ACK_BUSY_X 0x4
-#define ACK_BUSY_A 0x5
-#define ACK_BUSY_B 0x6
-#define ACK_TARDY 0xb
-#define ACK_CONFLICT_ERROR 0xc
-#define ACK_DATA_ERROR 0xd
-#define ACK_TYPE_ERROR 0xe
-#define ACK_ADDRESS_ERROR 0xf
+#define TCODE_WRITEQ 0x0
+#define TCODE_WRITEB 0x1
+#define TCODE_WRITE_RESPONSE 0x2
+#define TCODE_READQ 0x4
+#define TCODE_READB 0x5
+#define TCODE_READQ_RESPONSE 0x6
+#define TCODE_READB_RESPONSE 0x7
+#define TCODE_CYCLE_START 0x8
+#define TCODE_LOCK_REQUEST 0x9
+#define TCODE_ISO_DATA 0xa
+#define TCODE_STREAM_DATA 0xa
+#define TCODE_LOCK_RESPONSE 0xb
+
+#define RCODE_COMPLETE 0x0
+#define RCODE_CONFLICT_ERROR 0x4
+#define RCODE_DATA_ERROR 0x5
+#define RCODE_TYPE_ERROR 0x6
+#define RCODE_ADDRESS_ERROR 0x7
+
+#define EXTCODE_MASK_SWAP 0x1
+#define EXTCODE_COMPARE_SWAP 0x2
+#define EXTCODE_FETCH_ADD 0x3
+#define EXTCODE_LITTLE_ADD 0x4
+#define EXTCODE_BOUNDED_ADD 0x5
+#define EXTCODE_WRAP_ADD 0x6
+
+#define ACK_COMPLETE 0x1
+#define ACK_PENDING 0x2
+#define ACK_BUSY_X 0x4
+#define ACK_BUSY_A 0x5
+#define ACK_BUSY_B 0x6
+#define ACK_TARDY 0xb
+#define ACK_CONFLICT_ERROR 0xc
+#define ACK_DATA_ERROR 0xd
+#define ACK_TYPE_ERROR 0xe
+#define ACK_ADDRESS_ERROR 0xf
/* Non-standard "ACK codes" for internal use */
-#define ACKX_NONE (-1)
-#define ACKX_SEND_ERROR (-2)
-#define ACKX_ABORTED (-3)
-#define ACKX_TIMEOUT (-4)
-
-
-#define IEEE1394_SPEED_100 0x00
-#define IEEE1394_SPEED_200 0x01
-#define IEEE1394_SPEED_400 0x02
-#define IEEE1394_SPEED_800 0x03
-#define IEEE1394_SPEED_1600 0x04
-#define IEEE1394_SPEED_3200 0x05
+#define ACKX_NONE (-1)
+#define ACKX_SEND_ERROR (-2)
+#define ACKX_ABORTED (-3)
+#define ACKX_TIMEOUT (-4)
+
+#define IEEE1394_SPEED_100 0x00
+#define IEEE1394_SPEED_200 0x01
+#define IEEE1394_SPEED_400 0x02
+#define IEEE1394_SPEED_800 0x03
+#define IEEE1394_SPEED_1600 0x04
+#define IEEE1394_SPEED_3200 0x05
+
/* The current highest tested speed supported by the subsystem */
-#define IEEE1394_SPEED_MAX IEEE1394_SPEED_800
+#define IEEE1394_SPEED_MAX IEEE1394_SPEED_800
/* Maps speed values above to a string representation */
extern const char *hpsb_speedto_str[];
-
/* 1394a cable PHY packets */
-#define SELFID_PWRCL_NO_POWER 0x0
-#define SELFID_PWRCL_PROVIDE_15W 0x1
-#define SELFID_PWRCL_PROVIDE_30W 0x2
-#define SELFID_PWRCL_PROVIDE_45W 0x3
-#define SELFID_PWRCL_USE_1W 0x4
-#define SELFID_PWRCL_USE_3W 0x5
-#define SELFID_PWRCL_USE_6W 0x6
-#define SELFID_PWRCL_USE_10W 0x7
-
-#define SELFID_PORT_CHILD 0x3
-#define SELFID_PORT_PARENT 0x2
-#define SELFID_PORT_NCONN 0x1
-#define SELFID_PORT_NONE 0x0
+#define SELFID_PWRCL_NO_POWER 0x0
+#define SELFID_PWRCL_PROVIDE_15W 0x1
+#define SELFID_PWRCL_PROVIDE_30W 0x2
+#define SELFID_PWRCL_PROVIDE_45W 0x3
+#define SELFID_PWRCL_USE_1W 0x4
+#define SELFID_PWRCL_USE_3W 0x5
+#define SELFID_PWRCL_USE_6W 0x6
+#define SELFID_PWRCL_USE_10W 0x7
+
+#define SELFID_PORT_CHILD 0x3
+#define SELFID_PORT_PARENT 0x2
+#define SELFID_PORT_NCONN 0x1
+#define SELFID_PORT_NONE 0x0
#define SELFID_SPEED_UNKNOWN 0x3 /* 1394b PHY */
#define EXTPHYPACKET_TYPEMASK 0xC0FC0000
-#define PHYPACKET_PORT_SHIFT 24
-#define PHYPACKET_GAPCOUNT_SHIFT 16
+#define PHYPACKET_PORT_SHIFT 24
+#define PHYPACKET_GAPCOUNT_SHIFT 16
/* 1394a PHY register map bitmasks */
-#define PHY_00_PHYSICAL_ID 0xFC
-#define PHY_00_R 0x02 /* Root */
-#define PHY_00_PS 0x01 /* Power Status*/
-#define PHY_01_RHB 0x80 /* Root Hold-Off */
-#define PHY_01_IBR 0x80 /* Initiate Bus Reset */
-#define PHY_01_GAP_COUNT 0x3F
-#define PHY_02_EXTENDED 0xE0 /* 0x7 for 1394a-compliant PHY */
-#define PHY_02_TOTAL_PORTS 0x1F
-#define PHY_03_MAX_SPEED 0xE0
-#define PHY_03_DELAY 0x0F
-#define PHY_04_LCTRL 0x80 /* Link Active Report Control */
-#define PHY_04_CONTENDER 0x40
-#define PHY_04_JITTER 0x38
-#define PHY_04_PWR_CLASS 0x07 /* Power Class */
-#define PHY_05_WATCHDOG 0x80
-#define PHY_05_ISBR 0x40 /* Initiate Short Bus Reset */
-#define PHY_05_LOOP 0x20 /* Loop Detect */
-#define PHY_05_PWR_FAIL 0x10 /* Cable Power Failure Detect */
-#define PHY_05_TIMEOUT 0x08 /* Arbitration State Machine Timeout */
-#define PHY_05_PORT_EVENT 0x04 /* Port Event Detect */
-#define PHY_05_ENAB_ACCEL 0x02 /* Enable Arbitration Acceleration */
-#define PHY_05_ENAB_MULTI 0x01 /* Ena. Multispeed Packet Concatenation */
+#define PHY_00_PHYSICAL_ID 0xFC
+#define PHY_00_R 0x02 /* Root */
+#define PHY_00_PS 0x01 /* Power Status*/
+#define PHY_01_RHB 0x80 /* Root Hold-Off */
+#define PHY_01_IBR 0x80 /* Initiate Bus Reset */
+#define PHY_01_GAP_COUNT 0x3F
+#define PHY_02_EXTENDED 0xE0 /* 0x7 for 1394a-compliant PHY */
+#define PHY_02_TOTAL_PORTS 0x1F
+#define PHY_03_MAX_SPEED 0xE0
+#define PHY_03_DELAY 0x0F
+#define PHY_04_LCTRL 0x80 /* Link Active Report Control */
+#define PHY_04_CONTENDER 0x40
+#define PHY_04_JITTER 0x38
+#define PHY_04_PWR_CLASS 0x07 /* Power Class */
+#define PHY_05_WATCHDOG 0x80
+#define PHY_05_ISBR 0x40 /* Initiate Short Bus Reset */
+#define PHY_05_LOOP 0x20 /* Loop Detect */
+#define PHY_05_PWR_FAIL 0x10 /* Cable Power Failure Detect */
+#define PHY_05_TIMEOUT 0x08 /* Arbitration State Machine Timeout */
+#define PHY_05_PORT_EVENT 0x04 /* Port Event Detect */
+#define PHY_05_ENAB_ACCEL 0x02 /* Enable Arbitration Acceleration */
+#define PHY_05_ENAB_MULTI 0x01 /* Ena. Multispeed Packet Concatenation */
#include <asm/byteorder.h>
#ifdef __BIG_ENDIAN_BITFIELD
struct selfid {
- u32 packet_identifier:2; /* always binary 10 */
- u32 phy_id:6;
- /* byte */
- u32 extended:1; /* if true is struct ext_selfid */
- u32 link_active:1;
- u32 gap_count:6;
- /* byte */
- u32 speed:2;
- u32 phy_delay:2;
- u32 contender:1;
- u32 power_class:3;
- /* byte */
- u32 port0:2;
- u32 port1:2;
- u32 port2:2;
- u32 initiated_reset:1;
- u32 more_packets:1;
+ u32 packet_identifier:2; /* always binary 10 */
+ u32 phy_id:6;
+ /* byte */
+ u32 extended:1; /* if true is struct ext_selfid */
+ u32 link_active:1;
+ u32 gap_count:6;
+ /* byte */
+ u32 speed:2;
+ u32 phy_delay:2;
+ u32 contender:1;
+ u32 power_class:3;
+ /* byte */
+ u32 port0:2;
+ u32 port1:2;
+ u32 port2:2;
+ u32 initiated_reset:1;
+ u32 more_packets:1;
} __attribute__((packed));
struct ext_selfid {
- u32 packet_identifier:2; /* always binary 10 */
- u32 phy_id:6;
- /* byte */
- u32 extended:1; /* if false is struct selfid */
- u32 seq_nr:3;
- u32 reserved:2;
- u32 porta:2;
- /* byte */
- u32 portb:2;
- u32 portc:2;
- u32 portd:2;
- u32 porte:2;
- /* byte */
- u32 portf:2;
- u32 portg:2;
- u32 porth:2;
- u32 reserved2:1;
- u32 more_packets:1;
+ u32 packet_identifier:2; /* always binary 10 */
+ u32 phy_id:6;
+ /* byte */
+ u32 extended:1; /* if false is struct selfid */
+ u32 seq_nr:3;
+ u32 reserved:2;
+ u32 porta:2;
+ /* byte */
+ u32 portb:2;
+ u32 portc:2;
+ u32 portd:2;
+ u32 porte:2;
+ /* byte */
+ u32 portf:2;
+ u32 portg:2;
+ u32 porth:2;
+ u32 reserved2:1;
+ u32 more_packets:1;
} __attribute__((packed));
#elif defined __LITTLE_ENDIAN_BITFIELD /* __BIG_ENDIAN_BITFIELD */
*/
struct selfid {
- u32 phy_id:6;
- u32 packet_identifier:2; /* always binary 10 */
- /* byte */
- u32 gap_count:6;
- u32 link_active:1;
- u32 extended:1; /* if true is struct ext_selfid */
- /* byte */
- u32 power_class:3;
- u32 contender:1;
- u32 phy_delay:2;
- u32 speed:2;
- /* byte */
- u32 more_packets:1;
- u32 initiated_reset:1;
- u32 port2:2;
- u32 port1:2;
- u32 port0:2;
+ u32 phy_id:6;
+ u32 packet_identifier:2; /* always binary 10 */
+ /* byte */
+ u32 gap_count:6;
+ u32 link_active:1;
+ u32 extended:1; /* if true is struct ext_selfid */
+ /* byte */
+ u32 power_class:3;
+ u32 contender:1;
+ u32 phy_delay:2;
+ u32 speed:2;
+ /* byte */
+ u32 more_packets:1;
+ u32 initiated_reset:1;
+ u32 port2:2;
+ u32 port1:2;
+ u32 port0:2;
} __attribute__((packed));
struct ext_selfid {
- u32 phy_id:6;
- u32 packet_identifier:2; /* always binary 10 */
- /* byte */
- u32 porta:2;
- u32 reserved:2;
- u32 seq_nr:3;
- u32 extended:1; /* if false is struct selfid */
- /* byte */
- u32 porte:2;
- u32 portd:2;
- u32 portc:2;
- u32 portb:2;
- /* byte */
- u32 more_packets:1;
- u32 reserved2:1;
- u32 porth:2;
- u32 portg:2;
- u32 portf:2;
+ u32 phy_id:6;
+ u32 packet_identifier:2; /* always binary 10 */
+ /* byte */
+ u32 porta:2;
+ u32 reserved:2;
+ u32 seq_nr:3;
+ u32 extended:1; /* if false is struct selfid */
+ /* byte */
+ u32 porte:2;
+ u32 portd:2;
+ u32 portc:2;
+ u32 portb:2;
+ /* byte */
+ u32 more_packets:1;
+ u32 reserved2:1;
+ u32 porth:2;
+ u32 portg:2;
+ u32 portf:2;
} __attribute__((packed));
#else
#error What? PDP endian?
#endif /* __BIG_ENDIAN_BITFIELD */
-
#endif /* _IEEE1394_IEEE1394_H */
size_t header_size;
size_t data_size;
-
struct hpsb_host *host;
unsigned int generation;
/* Set a task for when a packet completes */
void hpsb_set_packet_complete_task(struct hpsb_packet *packet,
- void (*routine)(void *), void *data);
+ void (*routine)(void *), void *data);
static inline struct hpsb_packet *driver_packet(struct list_head *l)
{
struct hpsb_packet *hpsb_alloc_packet(size_t data_size);
void hpsb_free_packet(struct hpsb_packet *packet);
-
/*
* Generation counter for the complete 1394 subsystem. Generation gets
* incremented on every change in the subsystem (e.g. bus reset).
#define IEEE1394_MINOR_BLOCK_EXPERIMENTAL 15
#define IEEE1394_CORE_DEV MKDEV(IEEE1394_MAJOR, 0)
-#define IEEE1394_RAW1394_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16)
-#define IEEE1394_VIDEO1394_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_VIDEO1394 * 16)
-#define IEEE1394_DV1394_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_DV1394 * 16)
-#define IEEE1394_EXPERIMENTAL_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_EXPERIMENTAL * 16)
+#define IEEE1394_RAW1394_DEV MKDEV(IEEE1394_MAJOR, \
+ IEEE1394_MINOR_BLOCK_RAW1394 * 16)
+#define IEEE1394_VIDEO1394_DEV MKDEV(IEEE1394_MAJOR, \
+ IEEE1394_MINOR_BLOCK_VIDEO1394 * 16)
+#define IEEE1394_DV1394_DEV MKDEV(IEEE1394_MAJOR, \
+ IEEE1394_MINOR_BLOCK_DV1394 * 16)
+#define IEEE1394_EXPERIMENTAL_DEV MKDEV(IEEE1394_MAJOR, \
+ IEEE1394_MINOR_BLOCK_EXPERIMENTAL * 16)
/* return the index (within a minor number block) of a file */
static inline unsigned char ieee1394_file_to_instance(struct file *file)
extern struct class *hpsb_protocol_class;
#endif /* _IEEE1394_CORE_H */
-
#include "ieee1394_core.h"
-
-/*
- * Get and free transaction labels.
- */
int hpsb_get_tlabel(struct hpsb_packet *packet);
void hpsb_free_tlabel(struct hpsb_packet *packet);
-
struct hpsb_packet *hpsb_make_readpacket(struct hpsb_host *host, nodeid_t node,
u64 addr, size_t length);
struct hpsb_packet *hpsb_make_lockpacket(struct hpsb_host *host, nodeid_t node,
- u64 addr, int extcode, quadlet_t *data,
+ u64 addr, int extcode, quadlet_t *data,
quadlet_t arg);
-struct hpsb_packet *hpsb_make_lock64packet(struct hpsb_host *host, nodeid_t node,
- u64 addr, int extcode, octlet_t *data,
- octlet_t arg);
-struct hpsb_packet *hpsb_make_phypacket(struct hpsb_host *host,
- quadlet_t data) ;
-struct hpsb_packet *hpsb_make_isopacket(struct hpsb_host *host,
- int length, int channel,
- int tag, int sync);
-struct hpsb_packet *hpsb_make_writepacket (struct hpsb_host *host, nodeid_t node,
- u64 addr, quadlet_t *buffer, size_t length);
+struct hpsb_packet *hpsb_make_lock64packet(struct hpsb_host *host,
+ nodeid_t node, u64 addr, int extcode,
+ octlet_t *data, octlet_t arg);
+struct hpsb_packet *hpsb_make_phypacket(struct hpsb_host *host, quadlet_t data);
+struct hpsb_packet *hpsb_make_isopacket(struct hpsb_host *host, int length,
+ int channel, int tag, int sync);
+struct hpsb_packet *hpsb_make_writepacket(struct hpsb_host *host,
+ nodeid_t node, u64 addr,
+ quadlet_t *buffer, size_t length);
struct hpsb_packet *hpsb_make_streampacket(struct hpsb_host *host, u8 *buffer,
- int length, int channel, int tag, int sync);
+ int length, int channel, int tag,
+ int sync);
/*
* hpsb_packet_success - Make sense of the ack and reply codes and
*/
int hpsb_packet_success(struct hpsb_packet *packet);
-
/*
- * The generic read, write and lock functions. All recognize the local node ID
+ * The generic read and write functions. All recognize the local node ID
* and act accordingly. Read and write automatically use quadlet commands if
* length == 4 and and block commands otherwise (however, they do not yet
* support lengths that are not a multiple of 4). You must explicitly specifiy
sema_init(&(_tp)->count, 63); \
} while (0)
-
typedef u32 quadlet_t;
typedef u64 octlet_t;
typedef u16 nodeid_t;
#define NODE_BUS_ARGS(__host, __nodeid) \
__host->id, NODEID_TO_NODE(__nodeid), NODEID_TO_BUS(__nodeid)
-#define HPSB_PRINT(level, fmt, args...) printk(level "ieee1394: " fmt "\n" , ## args)
+#define HPSB_PRINT(level, fmt, args...) \
+ printk(level "ieee1394: " fmt "\n" , ## args)
-#define HPSB_DEBUG(fmt, args...) HPSB_PRINT(KERN_DEBUG, fmt , ## args)
-#define HPSB_INFO(fmt, args...) HPSB_PRINT(KERN_INFO, fmt , ## args)
-#define HPSB_NOTICE(fmt, args...) HPSB_PRINT(KERN_NOTICE, fmt , ## args)
-#define HPSB_WARN(fmt, args...) HPSB_PRINT(KERN_WARNING, fmt , ## args)
-#define HPSB_ERR(fmt, args...) HPSB_PRINT(KERN_ERR, fmt , ## args)
+#define HPSB_DEBUG(fmt, args...) HPSB_PRINT(KERN_DEBUG, fmt , ## args)
+#define HPSB_INFO(fmt, args...) HPSB_PRINT(KERN_INFO, fmt , ## args)
+#define HPSB_NOTICE(fmt, args...) HPSB_PRINT(KERN_NOTICE, fmt , ## args)
+#define HPSB_WARN(fmt, args...) HPSB_PRINT(KERN_WARNING, fmt , ## args)
+#define HPSB_ERR(fmt, args...) HPSB_PRINT(KERN_ERR, fmt , ## args)
#ifdef CONFIG_IEEE1394_VERBOSEDEBUG
-#define HPSB_VERBOSE(fmt, args...) HPSB_PRINT(KERN_DEBUG, fmt , ## args)
+#define HPSB_VERBOSE(fmt, args...) HPSB_PRINT(KERN_DEBUG, fmt , ## args)
#else
#define HPSB_VERBOSE(fmt, args...)
#endif
static inline void *memcpy_le32(u32 *dest, const u32 *__src, size_t count)
{
- void *tmp = dest;
+ void *tmp = dest;
u32 *src = (u32 *)__src;
- count /= 4;
-
- while (count--) {
- *dest++ = swab32p(src++);
- }
-
- return tmp;
+ count /= 4;
+ while (count--)
+ *dest++ = swab32p(src++);
+ return tmp;
}
#else
static __inline__ void *memcpy_le32(u32 *dest, const u32 *src, size_t count)
{
- return memcpy(dest, src, count);
+ return memcpy(dest, src, count);
}
#endif /* __BIG_ENDIAN */
/* high-level ISO interface */
-/* This API sends and receives isochronous packets on a large,
- virtually-contiguous kernel memory buffer. The buffer may be mapped
- into a user-space process for zero-copy transmission and reception.
-
- There are no explicit boundaries between packets in the buffer. A
- packet may be transmitted or received at any location. However,
- low-level drivers may impose certain restrictions on alignment or
- size of packets. (e.g. in OHCI no packet may cross a page boundary,
- and packets should be quadlet-aligned)
-*/
+/*
+ * This API sends and receives isochronous packets on a large,
+ * virtually-contiguous kernel memory buffer. The buffer may be mapped
+ * into a user-space process for zero-copy transmission and reception.
+ *
+ * There are no explicit boundaries between packets in the buffer. A
+ * packet may be transmitted or received at any location. However,
+ * low-level drivers may impose certain restrictions on alignment or
+ * size of packets. (e.g. in OHCI no packet may cross a page boundary,
+ * and packets should be quadlet-aligned)
+ */
/* Packet descriptor - the API maintains a ring buffer of these packet
- descriptors in kernel memory (hpsb_iso.infos[]). */
-
+ * descriptors in kernel memory (hpsb_iso.infos[]). */
struct hpsb_iso_packet_info {
/* offset of data payload relative to the first byte of the buffer */
__u32 offset;
- /* length of the data payload, in bytes (not including the isochronous header) */
+ /* length of the data payload, in bytes (not including the isochronous
+ * header) */
__u16 len;
- /* (recv only) the cycle number (mod 8000) on which the packet was received */
+ /* (recv only) the cycle number (mod 8000) on which the packet was
+ * received */
__u16 cycle;
/* (recv only) channel on which the packet was received */
__u8 tag;
__u8 sy;
- /*
- * length in bytes of the packet including header/trailer.
- * MUST be at structure end, since the first part of this structure is also
- * defined in raw1394.h (i.e. struct raw1394_iso_packet_info), is copied to
- * userspace and is accessed there through libraw1394.
- */
+ /* length in bytes of the packet including header/trailer.
+ * MUST be at structure end, since the first part of this structure is
+ * also defined in raw1394.h (i.e. struct raw1394_iso_packet_info), is
+ * copied to userspace and is accessed there through libraw1394. */
__u16 total_len;
};
void *hostdata;
/* a function to be called (from interrupt context) after
- outgoing packets have been sent, or incoming packets have
- arrived */
+ * outgoing packets have been sent, or incoming packets have
+ * arrived */
void (*callback)(struct hpsb_iso*);
/* wait for buffer space */
/* greatest # of packets between interrupts - controls
- the maximum latency of the buffer */
+ * the maximum latency of the buffer */
int irq_interval;
/* the buffer for packet data payloads */
int pkt_dma;
/* how many packets, starting at first_packet:
- (transmit) are ready to be filled with data
- (receive) contain received data */
+ * (transmit) are ready to be filled with data
+ * (receive) contain received data */
int n_ready_packets;
/* how many times the buffer has overflowed or underflowed */
int start_cycle;
/* cycle at which next packet will be transmitted,
- -1 if not known */
+ * -1 if not known */
int xmit_cycle;
/* ringbuffer of packet descriptors in regular kernel memory
int hpsb_iso_recv_set_channel_mask(struct hpsb_iso *iso, u64 mask);
/* start/stop DMA */
-int hpsb_iso_xmit_start(struct hpsb_iso *iso, int start_on_cycle, int prebuffer);
-int hpsb_iso_recv_start(struct hpsb_iso *iso, int start_on_cycle, int tag_mask, int sync);
+int hpsb_iso_xmit_start(struct hpsb_iso *iso, int start_on_cycle,
+ int prebuffer);
+int hpsb_iso_recv_start(struct hpsb_iso *iso, int start_on_cycle,
+ int tag_mask, int sync);
void hpsb_iso_stop(struct hpsb_iso *iso);
/* deallocate buffer and DMA context */
void hpsb_iso_shutdown(struct hpsb_iso *iso);
-/* queue a packet for transmission. 'offset' is relative to the beginning of the
- DMA buffer, where the packet's data payload should already have been placed */
-int hpsb_iso_xmit_queue_packet(struct hpsb_iso *iso, u32 offset, u16 len, u8 tag, u8 sy);
+/* queue a packet for transmission.
+ * 'offset' is relative to the beginning of the DMA buffer, where the packet's
+ * data payload should already have been placed. */
+int hpsb_iso_xmit_queue_packet(struct hpsb_iso *iso, u32 offset, u16 len,
+ u8 tag, u8 sy);
/* wait until all queued packets have been transmitted to the bus */
int hpsb_iso_xmit_sync(struct hpsb_iso *iso);
/* N packets have been read out of the buffer, re-use the buffer space */
-int hpsb_iso_recv_release_packets(struct hpsb_iso *recv, unsigned int n_packets);
+int hpsb_iso_recv_release_packets(struct hpsb_iso *recv,
+ unsigned int n_packets);
/* check for arrival of new packets immediately (even if irq_interval
- has not yet been reached) */
+ * has not yet been reached) */
int hpsb_iso_recv_flush(struct hpsb_iso *iso);
/* returns # of packets ready to send or receive */
/* the following are callbacks available to low-level drivers */
/* call after a packet has been transmitted to the bus (interrupt context is OK)
- 'cycle' is the _exact_ cycle the packet was sent on
- 'error' should be non-zero if some sort of error occurred when sending the packet
-*/
+ * 'cycle' is the _exact_ cycle the packet was sent on
+ * 'error' should be non-zero if some sort of error occurred when sending the
+ * packet */
void hpsb_iso_packet_sent(struct hpsb_iso *iso, int cycle, int error);
/* call after a packet has been received (interrupt context OK) */
void hpsb_iso_packet_received(struct hpsb_iso *iso, u32 offset, u16 len,
- u16 total_len, u16 cycle, u8 channel, u8 tag, u8 sy);
+ u16 total_len, u16 cycle, u8 channel, u8 tag,
+ u8 sy);
/* call to wake waiting processes after buffer space has opened up. */
void hpsb_iso_wake(struct hpsb_iso *iso);
u16 max_rec; /* Maximum packet size node can receive */
};
-
#define UNIT_DIRECTORY_VENDOR_ID 0x01
#define UNIT_DIRECTORY_MODEL_ID 0x02
#define UNIT_DIRECTORY_SPECIFIER_ID 0x04
* unit directory for each of these protocols.
*/
struct unit_directory {
- struct node_entry *ne; /* The node which this directory belongs to */
- octlet_t address; /* Address of the unit directory on the node */
+ struct node_entry *ne; /* The node which this directory belongs to */
+ octlet_t address; /* Address of the unit directory on the node */
u8 flags; /* Indicates which entries were read */
quadlet_t vendor_id;
int length; /* Number of quadlets */
struct device device;
-
struct class_device class_dev;
struct csr1212_keyval *ud_kv;
- u32 lun; /* logical unit number immediate value */
+ u32 lun; /* logical unit number immediate value */
};
struct node_entry {
struct hpsb_tlabel_pool *tpool;
struct device device;
-
struct class_device class_dev;
/* Means this node is not attached anymore */
/*
* This will fill in the given, pre-initialised hpsb_packet with the current
* information from the node entry (host, node ID, generation number). It will
- * return false if the node owning the GUID is not accessible (and not modify the
- * hpsb_packet) and return true otherwise.
+ * return false if the node owning the GUID is not accessible (and not modify
+ * the hpsb_packet) and return true otherwise.
*
* Note that packet sending may still fail in hpsb_send_packet if a bus reset
* happens while you are trying to set up the packet (due to obsolete generation
int hpsb_node_lock(struct node_entry *ne, u64 addr,
int extcode, quadlet_t *data, quadlet_t arg);
-
/* Iterate the hosts, calling a given function with supplied data for each
* host. */
int nodemgr_for_each_host(void *__data, int (*cb)(struct hpsb_host *, void *));
-
int init_ieee1394_nodemgr(void);
void cleanup_ieee1394_nodemgr(void);
-
/* The template for a host device */
extern struct device nodemgr_dev_template_host;
git://ftp.safe.ca / safe / jmp / linux-2.6 / commitdiff