Re: [PATCH v3 11/15] acpi: move aml builder code for parallel device

[Igor Mammedov]

On Wed, 29 Apr 2020 15:59:59 +0200
Gerd Hoffmann <address@hidden> wrote:

> Also adds support for multiple LPT devices.
> 
> Signed-off-by: Gerd Hoffmann <address@hidden>

Reviewed-by: Igor Mammedov <address@hidden>

> ---
>  hw/char/parallel.c   | 32 ++++++++++++++++++++++++++++++++
>  hw/i386/acpi-build.c | 23 -----------------------
>  2 files changed, 32 insertions(+), 23 deletions(-)
> 
> diff --git a/hw/char/parallel.c b/hw/char/parallel.c
> index 8dd67d13759b..bc6b55b3b910 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 +569,35 @@ 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);
> +    int i, uid = 0;
> +    Aml *dev;
> +    Aml *crs;
> +
> +    for (i = 0; i < ARRAY_SIZE(isa_parallel_io); i++) {
> +        if (isa->iobase == isa_parallel_io[i]) {
> +            uid = i + 1;
> +        }
> +    }
> +    if (!uid) {
> +        return;
> +    }
> +
> +    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", uid);
> +    aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0400")));
> +    aml_append(dev, aml_name_decl("_UID", aml_int(uid)));
> +    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 +654,11 @@ 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 e01afbd011d9..12a017e1f45b 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -1167,28 +1167,6 @@ 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();
> @@ -1202,7 +1180,6 @@ 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");