paul@0 | 1 | /* |
paul@0 | 2 | * LCD device support. |
paul@0 | 3 | * |
paul@103 | 4 | * Copyright (C) 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@113 | 24 | #include <l4/devices/lcd/activation_interface.h> |
paul@0 | 25 | #include <l4/devices/lcd.h> |
paul@0 | 26 | |
paul@0 | 27 | #include <l4/re/c/video/view.h> |
paul@0 | 28 | #include <l4/sys/types.h> |
paul@0 | 29 | |
paul@0 | 30 | |
paul@0 | 31 | |
paul@0 | 32 | #ifdef __cplusplus |
paul@0 | 33 | |
paul@0 | 34 | #include <l4/re/dataspace> |
paul@0 | 35 | #include <l4/sys/capability> |
paul@0 | 36 | |
paul@0 | 37 | class Lcd_device |
paul@0 | 38 | { |
paul@0 | 39 | protected: |
paul@0 | 40 | /* LCD peripheral abstraction. */ |
paul@0 | 41 | |
paul@0 | 42 | Lcd_chip *_chip; |
paul@0 | 43 | |
paul@0 | 44 | /* Display server abstraction. */ |
paul@0 | 45 | |
paul@103 | 46 | Activation *_display; |
paul@0 | 47 | |
paul@0 | 48 | /* Framebuffer virtual and physical addresses. */ |
paul@0 | 49 | |
paul@0 | 50 | l4_addr_t fb_vaddr, fb_paddr; |
paul@0 | 51 | |
paul@0 | 52 | /* Memory capability for the framebuffer. */ |
paul@0 | 53 | |
paul@0 | 54 | L4::Cap<L4Re::Dataspace> _fbmem; |
paul@0 | 55 | |
paul@0 | 56 | /* Display operations. */ |
paul@0 | 57 | |
paul@0 | 58 | virtual void disable_display(); |
paul@0 | 59 | virtual void enable_display(); |
paul@0 | 60 | |
paul@0 | 61 | public: |
paul@0 | 62 | /* Initialise a device with a controller and display object reference. */ |
paul@0 | 63 | |
paul@103 | 64 | Lcd_device(Lcd_chip *chip, Activation *display) |
paul@0 | 65 | : _chip(chip), _display(display) |
paul@0 | 66 | { |
paul@0 | 67 | /* Subclasses must set up any memory. */ |
paul@0 | 68 | } |
paul@0 | 69 | |
paul@0 | 70 | /* Framebuffer operations. */ |
paul@0 | 71 | |
paul@0 | 72 | virtual l4_addr_t get_framebuffer() |
paul@0 | 73 | { |
paul@0 | 74 | return fb_vaddr; |
paul@0 | 75 | } |
paul@0 | 76 | |
paul@0 | 77 | virtual L4::Cap<L4Re::Dataspace> get_framebuffer_cap() |
paul@0 | 78 | { |
paul@0 | 79 | return _fbmem; |
paul@0 | 80 | } |
paul@0 | 81 | |
paul@0 | 82 | /* Querying operations. */ |
paul@0 | 83 | |
paul@0 | 84 | virtual l4_size_t get_framebuffer_size() = 0; |
paul@0 | 85 | virtual void get_view_info(l4re_video_view_info_t *view_info) = 0; |
paul@0 | 86 | |
paul@0 | 87 | /* Device operations. */ |
paul@0 | 88 | |
paul@0 | 89 | virtual void disable() = 0; |
paul@0 | 90 | virtual void enable() = 0; |
paul@0 | 91 | |
paul@0 | 92 | /* Device access. */ |
paul@0 | 93 | |
paul@0 | 94 | static Lcd_device *get_device(); |
paul@0 | 95 | }; |
paul@0 | 96 | |
paul@0 | 97 | #endif |
paul@0 | 98 | |
paul@0 | 99 | |
paul@0 | 100 | |
paul@0 | 101 | /* C language interface. */ |
paul@0 | 102 | |
paul@0 | 103 | EXTERN_C_BEGIN |
paul@0 | 104 | |
paul@0 | 105 | void *lcd_get_device(void); |
paul@0 | 106 | l4_addr_t lcd_get_framebuffer(void *lcd); |
paul@0 | 107 | l4_size_t lcd_get_framebuffer_size(void *lcd); |
paul@0 | 108 | void lcd_get_view_info(void *lcd, l4re_video_view_info_t *view_info); |
paul@0 | 109 | void lcd_disable(void *lcd); |
paul@0 | 110 | void lcd_enable(void *lcd); |
paul@0 | 111 | |
paul@0 | 112 | EXTERN_C_END |