framework/device/chipset.go

// Copyright (C) 2016 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package device

var (
	UnknownChipset  = chipset("unknown", UnknownGPU)
	SnapdragonS4Pro = chipset("Snapdragon S4 Pro", Adreno320, Krait)
	Snapdragon800   = chipset("Snapdragon 800", Adreno330, Krait)
	Snapdragon801   = chipset("Snapdragon 801", Adreno330, Krait)
	Snapdragon805   = chipset("Snapdragon 805", Adreno420, Krait)
	Snapdragon808   = chipset("Snapdragon 808", Adreno418, CortexA57, CortexA53)
	Snapdragon810   = chipset("Snapdragon 810", Adreno430, CortexA57, CortexA53)
	Snapdragon820   = chipset("Snapdragon 820", Adreno530, Kryo)
	TegraK1Denver   = chipset("Tegra K1 Denver", Kepler, Denver)
)

func chipset(name string, gpu GPU, cpus ...CPU) Chipset {
	chipset := Chipset{
		Name:  name,
		Cores: cpus,
		GPU:   gpu,
	}
	return chipset
}

// SameChipset returns true if the two chipset objects are a match.
func SameChipset(a, b Chipset) bool {
	// If the chipset name is set, treat it as an authoratitive comparison point
	if a.Name != "" && b.Name != "" {
		return a.Name == b.Name
	}
	// Check if we have the same set of cpu cores
	if len(a.Cores) != len(b.Cores) {
		return false
	}
	for i, cpu := range a.Cores {
		if !SameCPU(cpu, b.Cores[i]) {
			return false
		}
	}
	return SameGPU(a.GPU, b.GPU)
}