Re: [PATCH v5 07/15] acpi: move aml builder code for parallel device

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

On 5/7/20 3:16 PM, Gerd Hoffmann wrote:
> Also adds support for multiple LPT devices.
> 
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> Reviewed-by: Igor Mammedov <imammedo@redhat.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> ---
>   hw/char/parallel.c   | 22 ++++++++++++++++++++++
>   hw/i386/acpi-build.c | 23 -----------------------
>   2 files changed, 22 insertions(+), 23 deletions(-)
> 
> diff --git a/hw/char/parallel.c b/hw/char/parallel.c
> index 8dd67d13759b..c0f34bf924ec 100644
> --- a/hw/char/parallel.c
> +++ b/hw/char/parallel.c
> @@ -28,6 +28,7 @@
>   #include "qemu/module.h"
>   #include "chardev/char-parallel.h"
>   #include "chardev/char-fe.h"
> +#include "hw/acpi/aml-build.h"
>   #include "hw/irq.h"
>   #include "hw/isa/isa.h"
>   #include "hw/qdev-properties.h"
> @@ -568,6 +569,25 @@ static void parallel_isa_realizefn(DeviceState *dev, Error **errp)
>                                s, "parallel");
>   }
>   
> +static void parallel_isa_build_aml(ISADevice *isadev, Aml *scope)
> +{
> +    ISAParallelState *isa = ISA_PARALLEL(isadev);
> +    Aml *dev;
> +    Aml *crs;
> +
> +    crs = aml_resource_template();
> +    aml_append(crs, aml_io(AML_DECODE16, isa->iobase, isa->iobase, 0x08, 0x08));
> +    aml_append(crs, aml_irq_no_flags(isa->isairq));
> +
> +    dev = aml_device("LPT%d", isa->index + 1);
> +    aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0400")));
> +    aml_append(dev, aml_name_decl("_UID", aml_int(isa->index + 1)));
> +    aml_append(dev, aml_name_decl("_STA", aml_int(0xf)));
> +    aml_append(dev, aml_name_decl("_CRS", crs));
> +
> +    aml_append(scope, dev);
> +}
> +
>   /* Memory mapped interface */
>   static uint64_t parallel_mm_readfn(void *opaque, hwaddr addr, unsigned size)
>   {
> @@ -624,9 +644,11 @@ static Property parallel_isa_properties[] = {
>   static void parallel_isa_class_initfn(ObjectClass *klass, void *data)
>   {
>       DeviceClass *dc = DEVICE_CLASS(klass);
> +    ISADeviceClass *isa = ISA_DEVICE_CLASS(klass);
>   
>       dc->realize = parallel_isa_realizefn;
>       dc->vmsd = &vmstate_parallel_isa;
> +    isa->build_aml = parallel_isa_build_aml;
>       device_class_set_props(dc, parallel_isa_properties);
>       set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
>   }
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index 2188a2b99d18..443db94deb5b 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -1173,28 +1173,6 @@ static Aml *build_mouse_device_aml(void)
>       return dev;
>   }
>   
> -static void build_lpt_device_aml(Aml *scope)
> -{
> -    Aml *dev;
> -    Aml *crs;
> -
> -    if (!memory_region_present(get_system_io(), 0x0378)) {
> -        return;
> -    }
> -
> -    dev = aml_device("LPT");
> -    aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0400")));
> -
> -    aml_append(dev, aml_name_decl("_STA", aml_int(0xf)));
> -
> -    crs = aml_resource_template();
> -    aml_append(crs, aml_io(AML_DECODE16, 0x0378, 0x0378, 0x08, 0x08));
> -    aml_append(crs, aml_irq_no_flags(7));
> -    aml_append(dev, aml_name_decl("_CRS", crs));
> -
> -    aml_append(scope, dev);
> -}
> -
>   static void build_isa_devices_aml(Aml *table)
>   {
>       ISADevice *fdc = pc_find_fdc0();
> @@ -1208,7 +1186,6 @@ static void build_isa_devices_aml(Aml *table)
>       if (fdc) {
>           aml_append(scope, build_fdc_device_aml(fdc));
>       }
> -    build_lpt_device_aml(scope);
>   
>       if (ambiguous) {
>           error_report("Multiple ISA busses, unable to define IPMI ACPI data");
>