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Diffstat (limited to 'Documentation/switchtec.txt')
| -rw-r--r-- | Documentation/switchtec.txt | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/switchtec.txt b/Documentation/switchtec.txt index 4bced4c78446..a0a9c7b3d4d5 100644 --- a/Documentation/switchtec.txt +++ b/Documentation/switchtec.txt @@ -51,3 +51,30 @@ The char device has the following semantics: * The poll call will also be supported for userspace applications that need to do other things while waiting for the command to complete. + +The following IOCTLs are also supported by the device: + +* SWITCHTEC_IOCTL_FLASH_INFO - Retrieve firmware length and number + of partitions in the device. + +* SWITCHTEC_IOCTL_FLASH_PART_INFO - Retrieve address and lengeth for + any specified partition in flash. + +* SWITCHTEC_IOCTL_EVENT_SUMMARY - Read a structure of bitmaps + indicating all uncleared events. + +* SWITCHTEC_IOCTL_EVENT_CTL - Get the current count, clear and set flags + for any event. This ioctl takes in a switchtec_ioctl_event_ctl struct + with the event_id, index and flags set (index being the partition or PFF + number for non-global events). It returns whether the event has + occurred, the number of times and any event specific data. The flags + can be used to clear the count or enable and disable actions to + happen when the event occurs. + By using the SWITCHTEC_IOCTL_EVENT_FLAG_EN_POLL flag, + you can set an event to trigger a poll command to return with + POLLPRI. In this way, userspace can wait for events to occur. + +* SWITCHTEC_IOCTL_PFF_TO_PORT and SWITCHTEC_IOCTL_PORT_TO_PFF convert + between PCI Function Framework number (used by the event system) + and Switchtec Logic Port ID and Partition number (which is more + user friendly). |