diff options
Diffstat (limited to 'drivers/staging/vme/TODO')
| -rw-r--r-- | drivers/staging/vme/TODO | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/drivers/staging/vme/TODO b/drivers/staging/vme/TODO deleted file mode 100644 index 2201ff6f74d..00000000000 --- a/drivers/staging/vme/TODO +++ /dev/null @@ -1,98 +0,0 @@ - TODO - ==== - -API -=== - -DMA Resource Allocation incomplete ----------------------------------- - -The current DMA resource Allocation provides no means of selecting the -suitability of a DMA controller based on it's supported modes of operation, as -opposed to the resource allocation mechanisms for master and slave windows: - - struct vme_resource *vme_dma_request(struct device *dev); - -As opposed to: - - struct vme_resource * vme_master_request(struct device *dev, - vme_address_t aspace, vme_cycle_t cycle, vme_width_t width); - -The TSI148 can perform, VME-to-PCI, PCI-to-VME, PATTERN-to-VME, PATTERN-to-PCI, -VME-to-VME and PCI-to-PCI transfers. The CA91C142 can only provide VME-to-PCI -and PCI-to-VME. - -Add a mechanism to select a VME controller based on source/target type, -required aspace, cycle and width requirements. - - -Master window broadcast select mask ------------------------------------ - -API currently provides no method to set or get Broadcast Select mask. Suggest -somthing like: - - int vme_master_bmsk_set (struct vme_resource *res, int mask); - int vme_master_bmsk_get (struct vme_resource *res, int *mask); - - -Interrupt Generation --------------------- - -Add optional timeout when waiting for an IACK. - - -CR/CSR Buffer -------------- - -The VME API provides no functions to access the buffer mapped into the CR/CSR -space. - - -Mailboxes ---------- - -Whilst not part of the VME specification, they are provided by a number of -chips. They are currently not supported at all by the API. - - -Core -==== - -- Rename vme_master_resource's "pci_resource" to be bus agnostic. -- Improve generic sanity checks (Such as does an offset and size fit within a - window and parameter checking). - -Bridge Support -============== - -Tempe (tsi148) --------------- - -- Driver can currently only support a single bridge. -- 2eSST Broadcast mode. -- Mailboxes unsupported. -- Improve error detection. -- Control of prefetch size, threshold. -- Arbiter control -- Requestor control - -Universe II (ca91c142) ----------------------- - -- Driver can currently only support a single bridge. -- DMA unsupported. -- RMW transactions unsupported. -- Location Monitors unsupported. -- Mailboxes unsupported. -- Error Detection. -- Control of prefetch size, threshold. -- Arbiter control -- Requestor control -- Slot detection - -Universe I (ca91x042) ---------------------- - -Currently completely unsupported. - |
