diff options
Diffstat (limited to 'include/linux/firewire-cdev.h')
| -rw-r--r-- | include/linux/firewire-cdev.h | 39 |
1 files changed, 32 insertions, 7 deletions
diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h index 5bc051b9a013..b87409160794 100644 --- a/include/linux/firewire-cdev.h +++ b/include/linux/firewire-cdev.h @@ -35,6 +35,7 @@ /* available since kernel version 2.6.36 */ #define FW_CDEV_EVENT_REQUEST2 0x06 #define FW_CDEV_EVENT_PHY_PACKET_SENT 0x07 +#define FW_CDEV_EVENT_PHY_PACKET_RECEIVED 0x08 /** * struct fw_cdev_event_common - Common part of all fw_cdev_event_ types @@ -285,16 +286,24 @@ struct fw_cdev_event_iso_resource { }; /** - * struct fw_cdev_event_phy_packet - A PHY packet was transmitted - * @closure: See &fw_cdev_event_common; - * set by %FW_CDEV_IOC_SEND_PHY_PACKET ioctl - * @type: %FW_CDEV_EVENT_PHY_PACKET_SENT + * struct fw_cdev_event_phy_packet - A PHY packet was transmitted or received + * @closure: See &fw_cdev_event_common; set by %FW_CDEV_IOC_SEND_PHY_PACKET + * or %FW_CDEV_IOC_RECEIVE_PHY_PACKETS ioctl + * @type: %FW_CDEV_EVENT_PHY_PACKET_SENT or %..._RECEIVED * @rcode: %RCODE_..., indicates success or failure of transmission + * @length: Data length in bytes + * @data: Incoming data + * + * If @type is %FW_CDEV_EVENT_PHY_PACKET_SENT, @length is 0 and @data empty. + * If @type is %FW_CDEV_EVENT_PHY_PACKET_RECEIVED, @length is 8 and @data + * consists of the two PHY packet quadlets, in host byte order. */ struct fw_cdev_event_phy_packet { __u64 closure; __u32 type; __u32 rcode; + __u32 length; + __u32 data[0]; }; /** @@ -308,7 +317,9 @@ struct fw_cdev_event_phy_packet { * @iso_resource: Valid if @common.type == * %FW_CDEV_EVENT_ISO_RESOURCE_ALLOCATED or * %FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED - * @phy_packet: Valid if @common.type == %FW_CDEV_EVENT_PHY_PACKET_SENT + * @phy_packet: Valid if @common.type == + * %FW_CDEV_EVENT_PHY_PACKET_SENT or + * %FW_CDEV_EVENT_PHY_PACKET_RECEIVED * * Convenience union for userspace use. Events could be read(2) into an * appropriately aligned char buffer and then cast to this union for further @@ -360,6 +371,7 @@ union fw_cdev_event { /* available since kernel version 2.6.36 */ #define FW_CDEV_IOC_SEND_PHY_PACKET _IOWR('#', 0x15, struct fw_cdev_send_phy_packet) +#define FW_CDEV_IOC_RECEIVE_PHY_PACKETS _IOW('#', 0x16, struct fw_cdev_receive_phy_packets) /* * ABI version history @@ -376,9 +388,9 @@ union fw_cdev_event { * - shared use and auto-response for FCP registers * 3 (2.6.34) - made &fw_cdev_get_cycle_timer reliable * - added %FW_CDEV_IOC_GET_CYCLE_TIMER2 - * 4 (2.6.36) - added %FW_CDEV_EVENT_REQUEST2, %FW_CDEV_EVENT_PHY_PACKET_SENT + * 4 (2.6.36) - added %FW_CDEV_EVENT_REQUEST2, %FW_CDEV_EVENT_PHY_PACKET_* * - implemented &fw_cdev_event_bus_reset.bm_node_id - * - added %FW_CDEV_IOC_SEND_PHY_PACKET + * - added %FW_CDEV_IOC_SEND_PHY_PACKET, _RECEIVE_PHY_PACKETS */ #define FW_CDEV_VERSION 3 /* Meaningless; don't use this macro. */ @@ -850,4 +862,17 @@ struct fw_cdev_send_phy_packet { __u32 generation; }; +/** + * struct fw_cdev_receive_phy_packets - start reception of PHY packets + * @closure: Passed back to userspace in phy packet events + * + * This ioctl activates issuing of %FW_CDEV_EVENT_PHY_PACKET_RECEIVED due to + * incoming PHY packets from any node on the same bus as the device. + * + * The ioctl is only permitted on device files which represent a local node. + */ +struct fw_cdev_receive_phy_packets { + __u64 closure; +}; + #endif /* _LINUX_FIREWIRE_CDEV_H */ |