firewire: reorganize header files
The three header files of firewire-core, i.e.
"drivers/firewire/fw-device.h",
"drivers/firewire/fw-topology.h",
"drivers/firewire/fw-transaction.h",
are replaced by
"drivers/firewire/core.h",
"include/linux/firewire.h".
The latter includes everything which a firewire high-level driver (like
firewire-sbp2) needs besides linux/firewire-constants.h, while core.h
contains the rest which is needed by firewire-core itself and by low-
level drivers (card drivers) like firewire-ohci.
High-level drivers can now also reside outside of drivers/firewire
without having to add drivers/firewire to the header file search path in
makefiles. At least the firedtv driver will be such a driver.
I also considered to spread the contents of core.h over several files,
one for each .c file where the respective implementation resides. But
it turned out that most core .c files will end up including most of the
core .h files. Also, the combined core.h isn't unreasonably big, and it
will lose more of its contents to linux/firewire.h anyway soon when more
firewire drivers are added. (IP-over-1394, firedtv, and there are plans
for one or two more.)
Furthermore, fw-ohci.h is renamed to ohci.h. The name of core.h and
ohci.h is chosen with regard to name changes of the .c files in a
follow-up change.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-06-05 18:26:18 +04:00
# ifndef _FIREWIRE_CORE_H
# define _FIREWIRE_CORE_H
# include <linux/fs.h>
# include <linux/list.h>
# include <linux/idr.h>
# include <linux/mm_types.h>
# include <linux/rwsem.h>
# include <linux/slab.h>
# include <linux/types.h>
# include <asm/atomic.h>
struct device ;
struct fw_card ;
struct fw_device ;
struct fw_iso_buffer ;
struct fw_iso_context ;
struct fw_iso_packet ;
struct fw_node ;
struct fw_packet ;
/* -card */
/* bitfields within the PHY registers */
# define PHY_LINK_ACTIVE 0x80
# define PHY_CONTENDER 0x40
# define PHY_BUS_RESET 0x40
# define PHY_BUS_SHORT_RESET 0x40
2010-04-01 18:40:18 +04:00
# define PHY_INT_STATUS_BITS 0x3c
firewire: reorganize header files
The three header files of firewire-core, i.e.
"drivers/firewire/fw-device.h",
"drivers/firewire/fw-topology.h",
"drivers/firewire/fw-transaction.h",
are replaced by
"drivers/firewire/core.h",
"include/linux/firewire.h".
The latter includes everything which a firewire high-level driver (like
firewire-sbp2) needs besides linux/firewire-constants.h, while core.h
contains the rest which is needed by firewire-core itself and by low-
level drivers (card drivers) like firewire-ohci.
High-level drivers can now also reside outside of drivers/firewire
without having to add drivers/firewire to the header file search path in
makefiles. At least the firedtv driver will be such a driver.
I also considered to spread the contents of core.h over several files,
one for each .c file where the respective implementation resides. But
it turned out that most core .c files will end up including most of the
core .h files. Also, the combined core.h isn't unreasonably big, and it
will lose more of its contents to linux/firewire.h anyway soon when more
firewire drivers are added. (IP-over-1394, firedtv, and there are plans
for one or two more.)
Furthermore, fw-ohci.h is renamed to ohci.h. The name of core.h and
ohci.h is chosen with regard to name changes of the .c files in a
follow-up change.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-06-05 18:26:18 +04:00
# define BANDWIDTH_AVAILABLE_INITIAL 4915
# define BROADCAST_CHANNEL_INITIAL (1 << 31 | 31)
# define BROADCAST_CHANNEL_VALID (1 << 30)
struct fw_card_driver {
/*
* Enable the given card with the given initial config rom .
* This function is expected to activate the card , and either
* enable the PHY or set the link_on bit and initiate a bus
* reset .
*/
2009-10-08 02:41:59 +04:00
int ( * enable ) ( struct fw_card * card ,
const __be32 * config_rom , size_t length ) ;
firewire: reorganize header files
The three header files of firewire-core, i.e.
"drivers/firewire/fw-device.h",
"drivers/firewire/fw-topology.h",
"drivers/firewire/fw-transaction.h",
are replaced by
"drivers/firewire/core.h",
"include/linux/firewire.h".
The latter includes everything which a firewire high-level driver (like
firewire-sbp2) needs besides linux/firewire-constants.h, while core.h
contains the rest which is needed by firewire-core itself and by low-
level drivers (card drivers) like firewire-ohci.
High-level drivers can now also reside outside of drivers/firewire
without having to add drivers/firewire to the header file search path in
makefiles. At least the firedtv driver will be such a driver.
I also considered to spread the contents of core.h over several files,
one for each .c file where the respective implementation resides. But
it turned out that most core .c files will end up including most of the
core .h files. Also, the combined core.h isn't unreasonably big, and it
will lose more of its contents to linux/firewire.h anyway soon when more
firewire drivers are added. (IP-over-1394, firedtv, and there are plans
for one or two more.)
Furthermore, fw-ohci.h is renamed to ohci.h. The name of core.h and
ohci.h is chosen with regard to name changes of the .c files in a
follow-up change.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-06-05 18:26:18 +04:00
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
2009-10-08 02:41:59 +04:00
* and initiate a bus reset .
firewire: reorganize header files
The three header files of firewire-core, i.e.
"drivers/firewire/fw-device.h",
"drivers/firewire/fw-topology.h",
"drivers/firewire/fw-transaction.h",
are replaced by
"drivers/firewire/core.h",
"include/linux/firewire.h".
The latter includes everything which a firewire high-level driver (like
firewire-sbp2) needs besides linux/firewire-constants.h, while core.h
contains the rest which is needed by firewire-core itself and by low-
level drivers (card drivers) like firewire-ohci.
High-level drivers can now also reside outside of drivers/firewire
without having to add drivers/firewire to the header file search path in
makefiles. At least the firedtv driver will be such a driver.
I also considered to spread the contents of core.h over several files,
one for each .c file where the respective implementation resides. But
it turned out that most core .c files will end up including most of the
core .h files. Also, the combined core.h isn't unreasonably big, and it
will lose more of its contents to linux/firewire.h anyway soon when more
firewire drivers are added. (IP-over-1394, firedtv, and there are plans
for one or two more.)
Furthermore, fw-ohci.h is renamed to ohci.h. The name of core.h and
ohci.h is chosen with regard to name changes of the .c files in a
follow-up change.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-06-05 18:26:18 +04:00
*/
int ( * set_config_rom ) ( struct fw_card * card ,
2009-10-08 02:41:59 +04:00
const __be32 * config_rom , size_t length ) ;
firewire: reorganize header files
The three header files of firewire-core, i.e.
"drivers/firewire/fw-device.h",
"drivers/firewire/fw-topology.h",
"drivers/firewire/fw-transaction.h",
are replaced by
"drivers/firewire/core.h",
"include/linux/firewire.h".
The latter includes everything which a firewire high-level driver (like
firewire-sbp2) needs besides linux/firewire-constants.h, while core.h
contains the rest which is needed by firewire-core itself and by low-
level drivers (card drivers) like firewire-ohci.
High-level drivers can now also reside outside of drivers/firewire
without having to add drivers/firewire to the header file search path in
makefiles. At least the firedtv driver will be such a driver.
I also considered to spread the contents of core.h over several files,
one for each .c file where the respective implementation resides. But
it turned out that most core .c files will end up including most of the
core .h files. Also, the combined core.h isn't unreasonably big, and it
will lose more of its contents to linux/firewire.h anyway soon when more
firewire drivers are added. (IP-over-1394, firedtv, and there are plans
for one or two more.)
Furthermore, fw-ohci.h is renamed to ohci.h. The name of core.h and
ohci.h is chosen with regard to name changes of the .c files in a
follow-up change.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-06-05 18:26:18 +04:00
void ( * send_request ) ( struct fw_card * card , struct fw_packet * packet ) ;
void ( * send_response ) ( struct fw_card * card , struct fw_packet * packet ) ;
/* Calling cancel is valid once a packet has been submitted. */
int ( * cancel_packet ) ( struct fw_card * card , struct fw_packet * packet ) ;
/*
* Allow the specified node ID to do direct DMA out and in of
* host memory . The card will disable this for all node when
* a bus reset happens , so driver need to reenable this after
* bus reset . Returns 0 on success , - ENODEV if the card
* doesn ' t support this , - ESTALE if the generation doesn ' t
* match .
*/
int ( * enable_phys_dma ) ( struct fw_card * card ,
int node_id , int generation ) ;
2010-02-14 20:49:18 +03:00
u32 ( * get_cycle_time ) ( struct fw_card * card ) ;
firewire: reorganize header files
The three header files of firewire-core, i.e.
"drivers/firewire/fw-device.h",
"drivers/firewire/fw-topology.h",
"drivers/firewire/fw-transaction.h",
are replaced by
"drivers/firewire/core.h",
"include/linux/firewire.h".
The latter includes everything which a firewire high-level driver (like
firewire-sbp2) needs besides linux/firewire-constants.h, while core.h
contains the rest which is needed by firewire-core itself and by low-
level drivers (card drivers) like firewire-ohci.
High-level drivers can now also reside outside of drivers/firewire
without having to add drivers/firewire to the header file search path in
makefiles. At least the firedtv driver will be such a driver.
I also considered to spread the contents of core.h over several files,
one for each .c file where the respective implementation resides. But
it turned out that most core .c files will end up including most of the
core .h files. Also, the combined core.h isn't unreasonably big, and it
will lose more of its contents to linux/firewire.h anyway soon when more
firewire drivers are added. (IP-over-1394, firedtv, and there are plans
for one or two more.)
Furthermore, fw-ohci.h is renamed to ohci.h. The name of core.h and
ohci.h is chosen with regard to name changes of the .c files in a
follow-up change.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-06-05 18:26:18 +04:00
struct fw_iso_context *
( * allocate_iso_context ) ( struct fw_card * card ,
int type , int channel , size_t header_size ) ;
void ( * free_iso_context ) ( struct fw_iso_context * ctx ) ;
int ( * start_iso ) ( struct fw_iso_context * ctx ,
s32 cycle , u32 sync , u32 tags ) ;
int ( * queue_iso ) ( struct fw_iso_context * ctx ,
struct fw_iso_packet * packet ,
struct fw_iso_buffer * buffer ,
unsigned long payload ) ;
int ( * stop_iso ) ( struct fw_iso_context * ctx ) ;
} ;
void fw_card_initialize ( struct fw_card * card ,
const struct fw_card_driver * driver , struct device * device ) ;
int fw_card_add ( struct fw_card * card ,
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 ) ;
2009-10-08 02:42:53 +04:00
int fw_compute_block_crc ( __be32 * block ) ;
firewire: reorganize header files
The three header files of firewire-core, i.e.
"drivers/firewire/fw-device.h",
"drivers/firewire/fw-topology.h",
"drivers/firewire/fw-transaction.h",
are replaced by
"drivers/firewire/core.h",
"include/linux/firewire.h".
The latter includes everything which a firewire high-level driver (like
firewire-sbp2) needs besides linux/firewire-constants.h, while core.h
contains the rest which is needed by firewire-core itself and by low-
level drivers (card drivers) like firewire-ohci.
High-level drivers can now also reside outside of drivers/firewire
without having to add drivers/firewire to the header file search path in
makefiles. At least the firedtv driver will be such a driver.
I also considered to spread the contents of core.h over several files,
one for each .c file where the respective implementation resides. But
it turned out that most core .c files will end up including most of the
core .h files. Also, the combined core.h isn't unreasonably big, and it
will lose more of its contents to linux/firewire.h anyway soon when more
firewire drivers are added. (IP-over-1394, firedtv, and there are plans
for one or two more.)
Furthermore, fw-ohci.h is renamed to ohci.h. The name of core.h and
ohci.h is chosen with regard to name changes of the .c files in a
follow-up change.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-06-05 18:26:18 +04:00
void fw_schedule_bm_work ( struct fw_card * card , unsigned long delay ) ;
2009-09-06 20:49:48 +04:00
static inline struct fw_card * fw_card_get ( struct fw_card * card )
{
kref_get ( & card - > kref ) ;
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 ) ;
}
firewire: reorganize header files
The three header files of firewire-core, i.e.
"drivers/firewire/fw-device.h",
"drivers/firewire/fw-topology.h",
"drivers/firewire/fw-transaction.h",
are replaced by
"drivers/firewire/core.h",
"include/linux/firewire.h".
The latter includes everything which a firewire high-level driver (like
firewire-sbp2) needs besides linux/firewire-constants.h, while core.h
contains the rest which is needed by firewire-core itself and by low-
level drivers (card drivers) like firewire-ohci.
High-level drivers can now also reside outside of drivers/firewire
without having to add drivers/firewire to the header file search path in
makefiles. At least the firedtv driver will be such a driver.
I also considered to spread the contents of core.h over several files,
one for each .c file where the respective implementation resides. But
it turned out that most core .c files will end up including most of the
core .h files. Also, the combined core.h isn't unreasonably big, and it
will lose more of its contents to linux/firewire.h anyway soon when more
firewire drivers are added. (IP-over-1394, firedtv, and there are plans
for one or two more.)
Furthermore, fw-ohci.h is renamed to ohci.h. The name of core.h and
ohci.h is chosen with regard to name changes of the .c files in a
follow-up change.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-06-05 18:26:18 +04:00
/* -cdev */
extern const struct file_operations fw_device_ops ;
void fw_device_cdev_update ( struct fw_device * device ) ;
void fw_device_cdev_remove ( struct fw_device * device ) ;
/* -device */
extern struct rw_semaphore fw_device_rwsem ;
extern struct idr fw_device_idr ;
extern int fw_cdev_major ;
struct fw_device * fw_device_get_by_devt ( dev_t devt ) ;
2009-06-06 20:37:25 +04:00
int fw_device_set_broadcast_channel ( struct device * dev , void * gen ) ;
firewire: reorganize header files
The three header files of firewire-core, i.e.
"drivers/firewire/fw-device.h",
"drivers/firewire/fw-topology.h",
"drivers/firewire/fw-transaction.h",
are replaced by
"drivers/firewire/core.h",
"include/linux/firewire.h".
The latter includes everything which a firewire high-level driver (like
firewire-sbp2) needs besides linux/firewire-constants.h, while core.h
contains the rest which is needed by firewire-core itself and by low-
level drivers (card drivers) like firewire-ohci.
High-level drivers can now also reside outside of drivers/firewire
without having to add drivers/firewire to the header file search path in
makefiles. At least the firedtv driver will be such a driver.
I also considered to spread the contents of core.h over several files,
one for each .c file where the respective implementation resides. But
it turned out that most core .c files will end up including most of the
core .h files. Also, the combined core.h isn't unreasonably big, and it
will lose more of its contents to linux/firewire.h anyway soon when more
firewire drivers are added. (IP-over-1394, firedtv, and there are plans
for one or two more.)
Furthermore, fw-ohci.h is renamed to ohci.h. The name of core.h and
ohci.h is chosen with regard to name changes of the .c files in a
follow-up change.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-06-05 18:26:18 +04:00
void fw_node_event ( struct fw_card * card , struct fw_node * node , int event ) ;
/* -iso */
int fw_iso_buffer_map ( struct fw_iso_buffer * buffer , struct vm_area_struct * vma ) ;
void fw_iso_resource_manage ( struct fw_card * card , int generation ,
2009-06-20 15:23:59 +04:00
u64 channels_mask , int * channel , int * bandwidth ,
bool allocate , __be32 buffer [ 2 ] ) ;
firewire: reorganize header files
The three header files of firewire-core, i.e.
"drivers/firewire/fw-device.h",
"drivers/firewire/fw-topology.h",
"drivers/firewire/fw-transaction.h",
are replaced by
"drivers/firewire/core.h",
"include/linux/firewire.h".
The latter includes everything which a firewire high-level driver (like
firewire-sbp2) needs besides linux/firewire-constants.h, while core.h
contains the rest which is needed by firewire-core itself and by low-
level drivers (card drivers) like firewire-ohci.
High-level drivers can now also reside outside of drivers/firewire
without having to add drivers/firewire to the header file search path in
makefiles. At least the firedtv driver will be such a driver.
I also considered to spread the contents of core.h over several files,
one for each .c file where the respective implementation resides. But
it turned out that most core .c files will end up including most of the
core .h files. Also, the combined core.h isn't unreasonably big, and it
will lose more of its contents to linux/firewire.h anyway soon when more
firewire drivers are added. (IP-over-1394, firedtv, and there are plans
for one or two more.)
Furthermore, fw-ohci.h is renamed to ohci.h. The name of core.h and
ohci.h is chosen with regard to name changes of the .c files in a
follow-up change.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-06-05 18:26:18 +04:00
/* -topology */
enum {
FW_NODE_CREATED ,
FW_NODE_UPDATED ,
FW_NODE_DESTROYED ,
FW_NODE_LINK_ON ,
FW_NODE_LINK_OFF ,
FW_NODE_INITIATED_RESET ,
} ;
struct fw_node {
u16 node_id ;
u8 color ;
u8 port_count ;
u8 link_on : 1 ;
u8 initiated_reset : 1 ;
u8 b_path : 1 ;
u8 phy_speed : 2 ; /* As in the self ID packet. */
u8 max_speed : 2 ; /* Minimum of all phy-speeds on the path from the
* local node to this node . */
u8 max_depth : 4 ; /* Maximum depth to any leaf node */
u8 max_hops : 4 ; /* Max hops in this sub tree */
atomic_t ref_count ;
/* For serializing node topology into a list. */
struct list_head link ;
/* Upper layer specific data. */
void * data ;
struct fw_node * ports [ 0 ] ;
} ;
static inline struct fw_node * fw_node_get ( struct fw_node * node )
{
atomic_inc ( & node - > ref_count ) ;
return node ;
}
static inline void fw_node_put ( struct fw_node * node )
{
if ( atomic_dec_and_test ( & node - > ref_count ) )
kfree ( node ) ;
}
void fw_core_handle_bus_reset ( struct fw_card * card , int node_id ,
int generation , int self_id_count , u32 * self_ids ) ;
void fw_destroy_nodes ( struct fw_card * card ) ;
/*
* Check whether new_generation is the immediate successor of old_generation .
* Take counter roll - over at 255 ( as per OHCI ) into account .
*/
static inline bool is_next_generation ( int new_generation , int old_generation )
{
return ( new_generation & 0xff ) = = ( ( old_generation + 1 ) & 0xff ) ;
}
/* -transaction */
# define TCODE_IS_READ_REQUEST(tcode) (((tcode) & ~1) == 4)
# define TCODE_IS_BLOCK_PACKET(tcode) (((tcode) & 1) != 0)
# define TCODE_IS_REQUEST(tcode) (((tcode) & 2) == 0)
# define TCODE_IS_RESPONSE(tcode) (((tcode) & 2) != 0)
# define TCODE_HAS_REQUEST_DATA(tcode) (((tcode) & 12) != 4)
# define TCODE_HAS_RESPONSE_DATA(tcode) (((tcode) & 12) != 0)
# define LOCAL_BUS 0xffc0
void fw_core_handle_request ( struct fw_card * card , struct fw_packet * request ) ;
void fw_core_handle_response ( struct fw_card * card , struct fw_packet * packet ) ;
void fw_fill_response ( struct fw_packet * response , u32 * request_header ,
int rcode , void * payload , size_t length ) ;
void fw_flush_transactions ( struct fw_card * card ) ;
void fw_send_phy_config ( struct fw_card * card ,
int node_id , int generation , int gap_count ) ;
# endif /* _FIREWIRE_CORE_H */