static void intel_dsm_platform_mux_info(void)
{
int i;
union acpi_object *pkg, *connector_count;
pkg = acpi_evaluate_dsm_typed(intel_dsm_priv.dhandle, intel_dsm_guid,
INTEL_DSM_REVISION_ID, INTEL_DSM_FN_PLATFORM_MUX_INFO,
NULL, ACPI_TYPE_PACKAGE);
if (!pkg) {
DRM_DEBUG_DRIVER("failed to evaluate _DSM\n");
return;
}
connector_count = &pkg->package.elements[0];
DRM_DEBUG_DRIVER("MUX info connectors: %lld\n",
(unsigned long long)connector_count->integer.value);
for (i = 1; i < pkg->package.count; i++) {
union acpi_object *obj = &pkg->package.elements[i];
union acpi_object *connector_id = &obj->package.elements[0];
union acpi_object *info = &obj->package.elements[1];
DRM_DEBUG_DRIVER("Connector id: 0x%016llx\n",
(unsigned long long)connector_id->integer.value);
DRM_DEBUG_DRIVER(" port id: %s\n",
intel_dsm_port_name(info->buffer.pointer[0]));
DRM_DEBUG_DRIVER(" display mux info: %s\n",
intel_dsm_mux_type(info->buffer.pointer[1]));
DRM_DEBUG_DRIVER(" aux/dc mux info: %s\n",
intel_dsm_mux_type(info->buffer.pointer[2]));
DRM_DEBUG_DRIVER(" hpd mux info: %s\n",
intel_dsm_mux_type(info->buffer.pointer[3]));
}
ACPI_FREE(pkg);
}
static void intel_dsm_platform_mux_info(void)
{
struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_object_list input;
union acpi_object params[4];
union acpi_object *pkg;
int i, ret;
input.count = 4;
input.pointer = params;
params[0].type = ACPI_TYPE_BUFFER;
params[0].buffer.length = sizeof(intel_dsm_guid);
params[0].buffer.pointer = (char *)intel_dsm_guid;
params[1].type = ACPI_TYPE_INTEGER;
params[1].integer.value = INTEL_DSM_REVISION_ID;
params[2].type = ACPI_TYPE_INTEGER;
params[2].integer.value = INTEL_DSM_FN_PLATFORM_MUX_INFO;
params[3].type = ACPI_TYPE_INTEGER;
params[3].integer.value = 0;
ret = acpi_evaluate_object(intel_dsm_priv.dhandle, "_DSM", &input,
&output);
if (ret) {
DRM_DEBUG_DRIVER("failed to evaluate _DSM: %d\n", ret);
goto out;
}
pkg = (union acpi_object *)output.pointer;
if (pkg->type == ACPI_TYPE_PACKAGE) {
union acpi_object *connector_count = &pkg->package.elements[0];
DRM_DEBUG_DRIVER("MUX info connectors: %lld\n",
(unsigned long long)connector_count->integer.value);
for (i = 1; i < pkg->package.count; i++) {
union acpi_object *obj = &pkg->package.elements[i];
union acpi_object *connector_id =
&obj->package.elements[0];
union acpi_object *info = &obj->package.elements[1];
DRM_DEBUG_DRIVER("Connector id: 0x%016llx\n",
(unsigned long long)connector_id->integer.value);
DRM_DEBUG_DRIVER(" port id: %s\n",
intel_dsm_port_name(info->buffer.pointer[0]));
DRM_DEBUG_DRIVER(" display mux info: %s\n",
intel_dsm_mux_type(info->buffer.pointer[1]));
DRM_DEBUG_DRIVER(" aux/dc mux info: %s\n",
intel_dsm_mux_type(info->buffer.pointer[2]));
DRM_DEBUG_DRIVER(" hpd mux info: %s\n",
intel_dsm_mux_type(info->buffer.pointer[3]));
}
} else {
DRM_ERROR("MUX INFO call failed\n");
}
out:
kfree(output.pointer);
}
