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In order to bind devices with variable PCIe device IDs with same device
tree node, make PCIe device ID optional parameter in device tree node.
If PCIe device ID not specified in device tree, any device can be bind
with the node.
CRs-Fixed: 2040899
Change-Id: Iaedcb40db15fa0e8c5c30eb147c904a10cd7569d
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
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Not all events require same priority to process. Process
high priority events using a tasklet while processing low
priority events using a kworker. Priority for events can be
configured by device tree.
CRs-Fixed: 2004759
Change-Id: I6bf04624c2fd92afd7c698d6a57f66619ea13b5b
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
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Not all MHI capable devices can access entire host
DDR. If an MHI client provide a transfer packet that’s
outside of supported address range, copy the packet to
a local bounce buffer prior to transfer.
CRs-Fixed 1110280
Change-Id: Ie7292a2c89cc6608d5360f8a330d78635d913c29
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
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Add support for MHI host to directly upload firmware
to compatible devices using MHI protocol.
CRs-Fixed: 1095436
Change-Id: Iff7043f1f9afc4824edeaeccc46ed427ce7ee291
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
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In order to support multiple MHI devices connected
to same host we have, re-organize struct mhi_device_ctxt
such that all information related to device is included inside
struct mhi_device_ctxt. Created an abstract power management
layer to operate MHI in bus master, and slave mode. PCIe bus,
device, slot are extracted from DT to identify physical device.
CRs-Fixed: 1086301
Change-Id: I27a12b7412db75e4843794d80146ca7475b02fdc
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
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Add a detail explanation for mhi-chan-cfg
configuration settings.
CRs-Fixed: 1022868
Change-Id: I89a1ea3e8ac6b1b210df245e8bd199206cdbb649
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
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The Modem Host Interface (MHI) device driver supports
clients to send control and data packets such as
IP data packets, control messages and Diagnostic
data between the Host and the device. It follows the
MHI specification to transfer data.
The driver interfaces with the IPA driver for Hardware
accelerated channels and PCIe End point driver
to communicate between the Host and the device.
The driver exposes to both userspace and kernel space
generic IO read/write/open/close system calls and
kernel APIs to communicate and transfer data between
Host and the device.
Change-Id: I64990a972cbf7c2022d638c35f7517071de67f19
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
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Enable parsing of device window size from device tree
and calculating the appropriate addressing limitations.
Change-Id: I252a593a74f0cc00e6295a45d4d13db6c79cdfca
Signed-off-by: Andrei Danaila <adanaila@codeaurora.org>
Signed-off-by: Tony Truong <truong@codeaurora.org>
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Enable bounce buffering scheme in MHI for the cases
where allocated APQ memory falls outside of the memory range
which the device can access.
Change-Id: I9f40b0dda2f49111b7deb22973e6399fada90094
Signed-off-by: Andrei Danaila <adanaila@codeaurora.org>
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Parse MHI ring information from DT instead of statically allocating
data structure.
This is necessary as different platforms support different
configurations.
Change-Id: I59cd660459d627f93479a11257653611070fd3a4
Signed-off-by: Andrei Danaila <adanaila@codeaurora.org>
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Enable the MHI core driver for communication
between host and device using PCIe as an interconnect
and supporting MHI as the communication protocol.
The driver exposes several kernel space APIs
for use by other kernel entities to interface to
the PCIe device over MHI.
APIs for read and write and other notifications
are supported by this MHI driver.
Support for full power management and device reset
is also included.
CRs-Fixed: 689329
Change-Id: Ibc2fd7c2d5689001485f71b1133ada2c4ca236a9
Signed-off-by: Andrei Danaila <adanaila@codeaurora.org>
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