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| author | Vishwanatha Subbanna <vishwa@linux.vnet.ibm.com> | 2017-04-13 20:17:13 +0530 |
|---|---|---|
| committer | Vishwanatha Subbanna <vishwa@linux.vnet.ibm.com> | 2017-04-17 23:27:39 +0530 |
| commit | afd21a650715bf7a0ecc9b71a93d60639706d980 (patch) | |
| tree | 20e746af17956379a465d901af72761a7c4dbc2f | |
| parent | f9fbadd6095781c774dd165d55bce4c5f5bada90 (diff) | |
| download | openpower-occ-control-afd21a650715bf7a0ecc9b71a93d60639706d980.tar.gz openpower-occ-control-afd21a650715bf7a0ecc9b71a93d60639706d980.zip | |
Populate device entry based on position
Communicating to OCC from BMC in PassThrough mode involves 2 drivers,
namely;
1) SBE FIFO driver --> Used to communicate with SBE
2) OCC driver --> Which uses FIFO driver to write data to OCC
at a predefined address and reads it back from a predefined
OCC address.
Device entry that is of interest here belongs to #2 above.
This will map occ0 to fifo1, occ2 to fifo2 and so on.
Until the udev rules are in place to make sure that a particular
entry always maps to correct device not caring the probing order,
this change here is a best guess that cpu0 and cpu1 would mostly in
all cases be probed in that order.
Change-Id: I485e0ea4eab1b4c6f59ee4b68c0725f9633cd933
Signed-off-by: Vishwanatha Subbanna <vishwa@linux.vnet.ibm.com>
| -rw-r--r-- | occ_pass_through.cpp | 3 | ||||
| -rw-r--r-- | occ_pass_through.hpp | 9 |
2 files changed, 10 insertions, 2 deletions
diff --git a/occ_pass_through.cpp b/occ_pass_through.cpp index 25f3edf..05864c1 100644 --- a/occ_pass_through.cpp +++ b/occ_pass_through.cpp @@ -3,7 +3,6 @@ #include <phosphor-logging/log.hpp> #include "occ_pass_through.hpp" #include "occ_finder.hpp" - namespace open_power { namespace occ @@ -41,7 +40,7 @@ PassThrough::PassThrough( Iface(bus, path), path(path) { - // Nothing + devicePath.append(std::to_string((this->path.back() - '0') + 1)); } std::vector<int32_t> PassThrough::send(std::vector<int32_t> command) diff --git a/occ_pass_through.hpp b/occ_pass_through.hpp index 835241f..da8c617 100644 --- a/occ_pass_through.hpp +++ b/occ_pass_through.hpp @@ -62,6 +62,15 @@ class PassThrough : public Iface private: /** @brief Pass-through occ path on the bus */ std::string path; + + /** @brief OCC device path + * For now, here is the hard-coded mapping until + * the udev rule is in + * occ0 --> /dev/occfifo1 + * occ1 --> /dev/occfifo2 + * ... + */ + std::string devicePath = "/dev/occfifo"; }; } // namespace pass_through |
