2.6.22-rc: regression: no irda0 interface (2.6.21 was OK), smsc does not find chip
Andrey Borzenkov
arvidjaar at mail.ru
Sat Jun 30 03:16:18 EDT 2007
On Saturday 30 June 2007, Bjorn Helgaas wrote:
> [patch] PNP SMCf010 quirk: work around Toshiba Portege 4000 ACPI issues
>
> When we enable the SMCf010 IR device, the Toshiba Portege 4000 BIOS claims
> the device is working, but it really isn't configured correctly. The BIOS
> *will* configure it, but only if we call _SRS after (1) reversing the order
> of the SIR and FIR I/O port regions and (2) changing the IRQ from
> active-high to active-low.
>
> This patch fixes the 2.6.22 regression:
> "no irda0 interface (2.6.21 was OK), smsc does not find chip"
>
does not work, sorry.
[ 958.107142] ACPI: bus type pnp registered
[ 958.125652] pnp: Device 00:0a activated.
[ 958.125710] 00:0a: SMCf010 not responding at SIR 0x2e800000100, FIR
0x2e8def5a6d4; auto-configuring
[ 958.127243] pnp: Device 00:0a disabled.
[ 958.132808] pnp: Device 00:0a activated.
[ 958.132837] 00:0a: not responding at SIR 0x2e800000100, FIR
0xded782bc000002e8; swapping SIR/FIR and reconfiguring
[ 958.134350] pnp: Device 00:0a disabled.
[ 958.140926] pnp: Device 00:0a activated.
[ 958.140954] 00:0a: responds at SIR 0x100000002e8, FIR 0xded782bc000002e8
[ 958.148707] pnp: PnP ACPI: found 12 devices
and loading smsc_ircc2
[ 524.423280] pnp: Device 00:0a activated.
[ 524.426614] smsc_ircc_present(), addr 0x0100 - no device found!
[ 524.426614] pnp: Device 00:0a disabled.
as already mentioned, port 100 cannot work:
0100-013f : pcmcia_socket0
{pts/1}% sudo
cat /sys/class/pcmcia_socket/pcmcia_socket0/available_resources_io
0x00000100 - 0x000003af
0x000003e0 - 0x000004ff
0x00000820 - 0x000008ff
0x00000a00 - 0x00000aff
0x00000c00 - 0x00000cf7
additinally I get these warnings during compile (and output is bogus):
/home/bor/src/linux-git/drivers/pnp/quirks.c: In function ‘quirk_smc_enable’:
/home/bor/src/linux-git/drivers/pnp/quirks.c:154: warning: format ‘%llx’
expects type ‘long long unsigned int’, but argument 5 has
type ‘resource_size_t’
/home/bor/src/linux-git/drivers/pnp/quirks.c:154: warning: format ‘%llx’
expects type ‘long long unsigned int’, but argument 6 has
type ‘resource_size_t’
/home/bor/src/linux-git/drivers/pnp/quirks.c:163: warning: format ‘%llx’
expects type ‘long long unsigned int’, but argument 4 has
type ‘resource_size_t’
/home/bor/src/linux-git/drivers/pnp/quirks.c:163: warning: format ‘%llx’
expects type ‘long long unsigned int’, but argument 5 has
type ‘resource_size_t’
/home/bor/src/linux-git/drivers/pnp/quirks.c:174: warning: format ‘%llx’
expects type ‘long long unsigned int’, but argument 4 has
type ‘resource_size_t’
/home/bor/src/linux-git/drivers/pnp/quirks.c:174: warning: format ‘%llx’
expects type ‘long long unsigned int’, but argument 5 has
type ‘resource_size_t’
/home/bor/src/linux-git/drivers/pnp/quirks.c:199: warning: format ‘%llx’
expects type ‘long long unsigned int’, but argument 4 has
type ‘resource_size_t’
/home/bor/src/linux-git/drivers/pnp/quirks.c:199: warning: format ‘%llx’
expects type ‘long long unsigned int’, but argument 5 has
type ‘resource_size_t’
-andrey
> I tested this on a Portege 4000. The smsc-ircc2 driver correctly detects
> the device, and "irattach irda0 -s && irdadump" shows transmitted and
> received packets.
>
> Signed-off-by: Bjorn Helgaas <bjorn.helgaas at hp.com>
>
> Index: w/drivers/pnp/quirks.c
> ===================================================================
> --- w.orig/drivers/pnp/quirks.c 2007-06-27 20:07:45.000000000 -0600
> +++ w/drivers/pnp/quirks.c 2007-06-29 19:28:02.000000000 -0600
> @@ -136,11 +136,10 @@
>
> static void quirk_smc_enable(struct pnp_dev *dev)
> {
> - /*
> - * If the BIOS left the device disabled, or it is enabled and
> - * responding correctly, we're in good shape.
> - */
> - if (!dev->active || quirk_smc_fir_enabled(dev))
> + struct resource fir, sir, irq;
> +
> + pnp_activate_dev(dev);
> + if (quirk_smc_fir_enabled(dev))
> return;
>
> /*
> @@ -152,16 +151,58 @@
> * this. Fortunately, they do fix things up if we auto-configure
> * the device using its _PRS and _SRS methods.
> */
> - dev_err(&dev->dev, "%s device not responding, auto-configuring "
> - "resources\n", dev->id->id);
> + dev_err(&dev->dev, "%s not responding at SIR 0x%llx, FIR 0x%llx; "
> + "auto-configuring\n", dev->id->id,
> + pnp_port_start(dev, 0), pnp_port_start(dev, 1));
>
> pnp_disable_dev(dev);
> pnp_init_resource_table(&dev->res);
> pnp_auto_config_dev(dev);
> pnp_activate_dev(dev);
> + if (quirk_smc_fir_enabled(dev)) {
> + dev_err(&dev->dev, "responds at SIR 0x%llx, FIR 0x%llx\n",
> + pnp_port_start(dev, 0), pnp_port_start(dev, 1));
> + return;
> + }
> +
> + /*
> + * The Toshiba Portege 4000 _CRS reports the FIR region first,
> + * followed by the SIR region. The BIOS will configure the bridge,
> + * but only if we call _SRS with SIR first, then FIR. It also
> + * reports the IRQ as active high, when it is really active low.
> + */
> + dev_err(&dev->dev, "not responding at SIR 0x%llx, FIR 0x%llx; "
> + "swapping SIR/FIR and reconfiguring\n",
> + pnp_port_start(dev, 0), pnp_port_start(dev, 1));
> +
> + /*
> + * Clear IORESOURCE_AUTO so pnp_activate_dev() doesn't reassign
> + * these resources any more.
> + */
> + fir = dev->res.port_resource[0];
> + sir = dev->res.port_resource[1];
> + fir.flags &= ~IORESOURCE_AUTO;
> + sir.flags &= ~IORESOURCE_AUTO;
> +
> + irq = dev->res.irq_resource[0];
> + irq.flags &= ~IORESOURCE_AUTO;
> + irq.flags &= ~IORESOURCE_BITS;
> + irq.flags |= IORESOURCE_IRQ_LOWEDGE;
> +
> + pnp_disable_dev(dev);
> + dev->res.port_resource[0] = sir;
> + dev->res.port_resource[1] = fir;
> + dev->res.irq_resource[0] = irq;
> + pnp_activate_dev(dev);
> +
> + if (quirk_smc_fir_enabled(dev)) {
> + dev_err(&dev->dev, "responds at SIR 0x%llx, FIR 0x%llx\n",
> + pnp_port_start(dev, 0), pnp_port_start(dev, 1));
> + return;
> + }
>
> - if (!quirk_smc_fir_enabled(dev))
> - dev_err(&dev->dev, "giving up; try \"smsc-ircc2.nopnp\"\n");
> + dev_err(&dev->dev, "giving up; try \"smsc-ircc2.nopnp\" and "
> + "email bjorn.helgaas at hp.com\n");
> }
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