paul@0 | 1 | /* |
paul@0 | 2 | * Clock and power management (CPM) abstractions. |
paul@0 | 3 | * |
paul@82 | 4 | * Copyright (C) 2017, 2018, 2020 Paul Boddie <paul@boddie.org.uk> |
paul@0 | 5 | * |
paul@0 | 6 | * This program is free software; you can redistribute it and/or |
paul@0 | 7 | * modify it under the terms of the GNU General Public License as |
paul@0 | 8 | * published by the Free Software Foundation; either version 2 of |
paul@0 | 9 | * the License, or (at your option) any later version. |
paul@0 | 10 | * |
paul@0 | 11 | * This program is distributed in the hope that it will be useful, |
paul@0 | 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
paul@0 | 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
paul@0 | 14 | * GNU General Public License for more details. |
paul@0 | 15 | * |
paul@0 | 16 | * You should have received a copy of the GNU General Public License |
paul@0 | 17 | * along with this program; if not, write to the Free Software |
paul@0 | 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, |
paul@0 | 19 | * Boston, MA 02110-1301, USA |
paul@0 | 20 | */ |
paul@0 | 21 | |
paul@0 | 22 | #pragma once |
paul@0 | 23 | |
paul@0 | 24 | #include <l4/sys/types.h> |
paul@0 | 25 | #include <stdint.h> |
paul@0 | 26 | |
paul@0 | 27 | |
paul@0 | 28 | |
paul@0 | 29 | #ifdef __cplusplus |
paul@0 | 30 | |
paul@0 | 31 | /* A simple abstraction for accessing the CPM registers. */ |
paul@0 | 32 | |
paul@0 | 33 | class Cpm_chip |
paul@0 | 34 | { |
paul@0 | 35 | public: |
paul@82 | 36 | virtual uint32_t get_lcd_pixel_frequency() = 0; |
paul@82 | 37 | |
paul@82 | 38 | virtual void set_hdmi_frequency(uint32_t) { } |
paul@82 | 39 | |
paul@82 | 40 | virtual void start_hdmi() { } |
paul@82 | 41 | virtual void stop_hdmi() { } |
paul@82 | 42 | |
paul@0 | 43 | virtual void set_lcd_frequencies(uint32_t pclk, uint8_t ratio) = 0; |
paul@0 | 44 | |
paul@0 | 45 | virtual void start_lcd() = 0; |
paul@0 | 46 | virtual void stop_lcd() = 0; |
paul@0 | 47 | |
paul@0 | 48 | virtual void update_output_frequency() = 0; |
paul@0 | 49 | }; |
paul@0 | 50 | |
paul@0 | 51 | #endif /* __cplusplus */ |