Date: Tue, 6 Mar 2018 08:27:27 +0100 From: Andre Albsmeier <Andre.Albsmeier@siemens.com> To: Daniel Eischen <deischen@freebsd.org> Cc: Andre Albsmeier <Andre.Albsmeier@siemens.com>, freebsd-hackers@FreeBSD.org Subject: Re: Adding support for MosChip 9912 PCIe (serial/parallel) cards Message-ID: <20180306072727.GA86364@bali> In-Reply-To: <Pine.GSO.4.64.1803031439210.20340@sea.ntplx.net> References: <20180302061852.GA7887@bali> <Pine.GSO.4.64.1803020833290.14754@sea.ntplx.net> <20180303064400.GA27337@bali> <Pine.GSO.4.64.1803031051290.19549@sea.ntplx.net> <20180303184359.GA29745@bali> <Pine.GSO.4.64.1803031439210.20340@sea.ntplx.net>
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On Sat, 03-Mar-2018 at 14:41:58 -0500, Daniel Eischen wrote:
> On Sat, 3 Mar 2018, Andre Albsmeier wrote:
>
> > On Sat, 03-Mar-2018 at 10:53:20 -0500, Daniel Eischen wrote:
> >> On Sat, 3 Mar 2018, Andre Albsmeier wrote:
> >>
> >>> On Fri, 02-Mar-2018 at 08:36:40 -0500, Daniel Eischen wrote:
> >>>> On Fri, 2 Mar 2018, Andre Albsmeier wrote:
> >>>>
> >>>>> I have a MosChip 9912 card (PCIe card with 1 parallel and 2 serial
> >>>>> ports) sitting here which does not get detected on 11.1. I tried
> >>>>> to simply add it to the uart and ppc drivers with
> >>>>>
> >>>> [ ... ]
> >>>>
> >>>> Do you try adding similar support to puc_pci_devices[] in
> >>>> sys/dev/puc/pucdata.c?
> >>>
> >>> Just tried that:
> >>>
> >>> @@ -1204,6 +1204,11 @@
> >>> PUC_PORT_1S1P, 0x10, 4, 0,
> >>> },
> >>>
> >>> +{ 0x9710, 0x9912, 0xa000, 0x3012,
> >>> + "NetMos NM9912 Dual UART and 1284 Printer port",
> >>> + DEFAULT_RCLK,
> >>> + PUC_PORT_2S1P, 0x10, 4, 0,
> >>> +},
> >>> { 0x9710, 0x9865, 0xa000, 0x3012,
> >>> "NetMos NM9865 Dual UART and 1284 Printer port",
> >>> DEFAULT_RCLK,
> >>>
> >>> But the results are exactly the same. It also doesn't
> >>> matter if puc.ko is loaded at all.
> >>
> >> Are you sure your subvendor and subdevice are correct? I would
> >
> > No ;-). I have to use: 0x9710, 0x9912, 0xa000, 0x2000,
> >
> > Now I have the following behaviour:
> >
> > When I load puc.ko I get:
> > puc0: <NetMos NM9912 Dual UART and 1284 Printer port> at device 0.2 on pci9
> >
> > If I load ppc.ko now, I get:
> > ppc0: parallel port not found.
> >
> > But if I unload puc and ppc and load ppc again, I get:
> >
> > ppc0: <MosChip MCS9912 PCIe to Peripheral Controller> port 0xd000-0xd007,0xd008-0xd00f mem 0x89200000-0x89200fff irq 20 at device 0.2 on pci9
> > ppc0: Generic chipset (EPP/NIBBLE) in COMPATIBLE mode
> > ppbus0: <Parallel port bus> on ppc0
> > lpt0: <Printer> on ppbus0
> > lpt0: Interrupt-driven port
> >
> > For all this I have to disable /boot/device.hints -- otherwise
> > the messages "driver bug: Unable to set devclass" comes back.
> >
> > So I think there are two problems:
> >
> > First the settings of the ISA stuff in /boot/device.hints conflicted
> > with the settings the driver probed. This would be easy to solve --
> > just disable them in /boot/device.hints.
> >
> > Second it appears that ppc only attaches if puc did some kind of
> > initialisation first. But we have to detach puc so the ppc can attach.
>
> Strange. Did you try setting puc_load="YES" in /boot/loader.conf
> and rebooting? Or are you just loading and unloading modules
> for now?
I am now using this diff to access the MCS9912. I am (mis)using
puc to initialise whatever is needed for the printer port to work
and let ppc attach to puc. As puc does not attach to single port
devices, I have removed this check. uart works by simply adding
the device. This is all quite ugly but it works...
--- ./puc/puc.c.ORI 2018-03-06 06:21:35.939042000 +0100
+++ ./puc/puc.c 2018-03-06 06:21:10.337686000 +0100
@@ -458,8 +458,10 @@
sc->sc_cfg = cfg;
/* We don't attach to single-port serial cards. */
+#if 0
if (cfg->ports == PUC_PORT_1S || cfg->ports == PUC_PORT_1P)
return (EDOOFUS);
+#endif
error = puc_config(sc, PUC_CFG_GET_NPORTS, 0, &res);
if (error)
return (error);
--- ./puc/pucdata.c.ORI 2016-12-27 14:33:54.000000000 +0100
+++ ./puc/pucdata.c 2018-03-06 06:19:26.764167000 +0100
@@ -1216,6 +1216,12 @@
PUC_PORT_2P, 0x10, 4, 0,
},
+{ 0x9710, 0x9912, 0xa000, 0x2000,
+ "NetMos NM9912 Printer port",
+ DEFAULT_RCLK,
+ PUC_PORT_1P, 0x10, 4, 0,
+},
+
{ 0xb00c, 0x021c, 0xffff, 0,
"IC Book Labs Gunboat x4 Lite",
DEFAULT_RCLK,
--- ./uart/uart_bus_pci.c.ORI 2018-02-12 06:17:57.000000000 +0100
+++ ./uart/uart_bus_pci.c 2018-03-06 06:23:20.886245000 +0100
@@ -158,6 +158,8 @@
"MosChip MCS9904 PCIe to Peripheral Controller", 0x10 },
{ 0x9710, 0x9922, 0xa000, 0x1000,
"MosChip MCS9922 PCIe to Peripheral Controller", 0x10 },
+{ 0x9710, 0x9912, 0xa000, 0x1000,
+ "MosChip MCS9912 PCIe to Peripheral Controller", 0x10 },
{ 0xdeaf, 0x9051, 0xffff, 0, "Middle Digital PC Weasel Serial Port", 0x10 },
{ 0xffff, 0, 0xffff, 0, NULL, 0, 0}
};
-Andre
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