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In our department we are using some older Janz ICAN3-modules in our dekstop pcs. There we have slightly different carrier boards than the janz-cmodio supported in the kernel sources, called CAN-PCI2 with two submodules. But the pci configuration regions are identical. So extending the supported pci devices to the corresponding device ids is sufficient to get the drivers working. * The old ICAN3-modules with firmware 1.28 need more then 250ms for the restart after reset. I've increased the timeout to 500ms. * The janz_ican3 module uses the raw can services of the Janz-firmware, this means firmware must be ICANOS/2. Our ICAN3-modules are equipped with CAL/CANopen-firmware, so I must use the appropriate commands for the layer management services. Te driver detects the firmware after module reset and selects the commands matching the firmware. This affects the bus on/off-command (ican3_set_bus_state) and the configuration of the bittiming (ican3_set_bittiming). For better diagnostics the detected firmware string is presented as sysfs attribute (fwinfo). Signed-off-by: Andreas Gröger <andreas24groeger@gmail.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
20 lines
651 B
Plaintext
20 lines
651 B
Plaintext
What: /sys/class/net/<iface>/termination
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Date: May 2010
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KernelVersion: 2.6.35
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Contact: Ira W. Snyder <ira.snyder@gmail.com>
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Description:
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Value representing the can bus termination
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Default: 1 (termination active)
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Reading: get actual termination state
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Writing: set actual termination state (0=no termination, 1=termination active)
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What: /sys/class/net/<iface>/fwinfo
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Date: May 2015
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KernelVersion: 3.19
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Contact: Andreas Gröger <andreas24groeger@gmail.com>
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Description:
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Firmware stamp of ican3 module
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Read-only: 32 byte string identification of the ICAN3 module
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(known values: "JANZ-ICAN3 ICANOS 1.xx", "JANZ-ICAN3 CAL/CANopen 1.xx")
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