John Mitchell / DMSupport

Subdirectory provided by Embedded Artists

Dependencies:   DM_FATFileSystem DM_HttpServer DM_USBHost EthernetInterface USBDevice mbed-rpc mbed-rtos mbed-src

Dependents:   lpc4088_displaymodule_hello_world_Sept_2018

Fork of DMSupport by Embedded Artists

Display/BiosDisplay.cpp@41:ac490f69398f, 2018-10-04 (annotated)

Committer:
jmitc91516
Date:
Thu Oct 04 08:30:19 2018 +0000
Revision:
41:ac490f69398f
Parent:
39:e1cb4dd9bfeb 
To demonstrate a problem with the dm_board_config.h file - the project will not build if it is in its normal place in the root directory, but builds OK if I copy it to the DMSupport subdirectory.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 22:1a58a518435c 1 /*
embeddedartists 22:1a58a518435c 2 * Copyright 2014 Embedded Artists AB
embeddedartists 22:1a58a518435c 3 *
embeddedartists 22:1a58a518435c 4 * Licensed under the Apache License, Version 2.0 (the "License");
embeddedartists 22:1a58a518435c 5 * you may not use this file except in compliance with the License.
embeddedartists 22:1a58a518435c 6 * You may obtain a copy of the License at
embeddedartists 22:1a58a518435c 7 *
embeddedartists 22:1a58a518435c 8 * http://www.apache.org/licenses/LICENSE-2.0
embeddedartists 22:1a58a518435c 9 *
embeddedartists 22:1a58a518435c 10 * Unless required by applicable law or agreed to in writing, software
embeddedartists 22:1a58a518435c 11 * distributed under the License is distributed on an "AS IS" BASIS,
embeddedartists 22:1a58a518435c 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
embeddedartists 22:1a58a518435c 13 * See the License for the specific language governing permissions and
embeddedartists 22:1a58a518435c 14 * limitations under the License.
embeddedartists 22:1a58a518435c 15 */
embeddedartists 22:1a58a518435c 16
embeddedartists 22:1a58a518435c 17 #include "mbed.h"
embeddedartists 22:1a58a518435c 18 #include "BiosDisplay.h"
embeddedartists 22:1a58a518435c 19 #include "BiosLoader.h"
embeddedartists 22:1a58a518435c 20 #include "DMBoard.h"
embeddedartists 22:1a58a518435c 21 #include "bios.h"
embeddedartists 22:1a58a518435c 22
embeddedartists 22:1a58a518435c 23
embeddedartists 22:1a58a518435c 24 /******************************************************************************
embeddedartists 22:1a58a518435c 25 * Defines and typedefs
embeddedartists 22:1a58a518435c 26 *****************************************************************************/
embeddedartists 22:1a58a518435c 27
embeddedartists 22:1a58a518435c 28
embeddedartists 22:1a58a518435c 29 /******************************************************************************
embeddedartists 22:1a58a518435c 30 * Local variables
embeddedartists 22:1a58a518435c 31 *****************************************************************************/
embeddedartists 22:1a58a518435c 32
embeddedartists 22:1a58a518435c 33
embeddedartists 22:1a58a518435c 34 /******************************************************************************
embeddedartists 22:1a58a518435c 35 * Private Functions
embeddedartists 22:1a58a518435c 36 *****************************************************************************/
embeddedartists 22:1a58a518435c 37
embeddedartists 22:1a58a518435c 38 BiosDisplay::BiosDisplay() :
embeddedartists 22:1a58a518435c 39 _initialized(false),
embeddedartists 22:1a58a518435c 40 _poweredOn(false),
embeddedartists 22:1a58a518435c 41 _bios(NULL),
embeddedartists 22:1a58a518435c 42 _biosData(NULL),
embeddedartists 22:1a58a518435c 43 _width(0),
embeddedartists 22:1a58a518435c 44 _height(0),
embeddedartists 22:1a58a518435c 45 _bpp(0),
embeddedartists 22:1a58a518435c 46 _supportedRes(0),
embeddedartists 22:1a58a518435c 47 _activeRes(Res_16bit_rgb565),
embeddedartists 22:1a58a518435c 48 _landscape(false)
embeddedartists 22:1a58a518435c 49 {
embeddedartists 22:1a58a518435c 50 }
embeddedartists 22:1a58a518435c 51
embeddedartists 22:1a58a518435c 52 BiosDisplay::~BiosDisplay()
embeddedartists 22:1a58a518435c 53 {
embeddedartists 22:1a58a518435c 54 // _bios and _biosData are deallocated by BiosLoader
embeddedartists 22:1a58a518435c 55 }
embeddedartists 22:1a58a518435c 56
embeddedartists 22:1a58a518435c 57
embeddedartists 22:1a58a518435c 58 /******************************************************************************
embeddedartists 22:1a58a518435c 59 * Public Functions
embeddedartists 22:1a58a518435c 60 *****************************************************************************/
embeddedartists 22:1a58a518435c 61
embeddedartists 22:1a58a518435c 62 BiosDisplay::DisplayError BiosDisplay::init()
embeddedartists 22:1a58a518435c 63 {
embeddedartists 22:1a58a518435c 64 DisplayError err = DisplayError_Ok;
embeddedartists 22:1a58a518435c 65 if (!_initialized) {
embeddedartists 22:1a58a518435c 66 do {
embeddedartists 22:1a58a518435c 67 if (BiosLoader::instance().params(&_bios, &_biosData) != DMBoard::Ok) {
embeddedartists 22:1a58a518435c 68 err = DisplayError_ConfigError;
embeddedartists 22:1a58a518435c 69 break;
embeddedartists 22:1a58a518435c 70 }
embeddedartists 22:1a58a518435c 71
embeddedartists 22:1a58a518435c 72 err = (DisplayError)_bios->displayInit(_biosData);
embeddedartists 22:1a58a518435c 73 if (err != DisplayError_Ok) {
embeddedartists 22:1a58a518435c 74 break;
embeddedartists 22:1a58a518435c 75 }
embeddedartists 22:1a58a518435c 76
embeddedartists 22:1a58a518435c 77 err = (DisplayError)_bios->displayInformation(_biosData, &_width, &_height, &_bpp, &_landscape, &_supportedRes, &_activeRes);
embeddedartists 22:1a58a518435c 78 if (err != DisplayError_Ok) {
embeddedartists 22:1a58a518435c 79 break;
embeddedartists 22:1a58a518435c 80 }
embeddedartists 22:1a58a518435c 81
embeddedartists 22:1a58a518435c 82 _initialized = true;
embeddedartists 22:1a58a518435c 83 } while(0);
embeddedartists 22:1a58a518435c 84 }
embeddedartists 22:1a58a518435c 85 return err;
embeddedartists 22:1a58a518435c 86 }
embeddedartists 22:1a58a518435c 87
alindvall 39:e1cb4dd9bfeb 88 BiosDisplay::DisplayError BiosDisplay::powerUp(void* framebuffer, Display::Resolution res, FrameRate_t rate)
embeddedartists 22:1a58a518435c 89 {
embeddedartists 22:1a58a518435c 90 DisplayError err = DisplayError_Ok;
embeddedartists 22:1a58a518435c 91 if (!_poweredOn) {
embeddedartists 22:1a58a518435c 92 err = init();
embeddedartists 22:1a58a518435c 93 if (err == DisplayError_Ok) {
embeddedartists 22:1a58a518435c 94 do {
alindvall 39:e1cb4dd9bfeb 95 err = (DisplayError)_bios->displayPowerUp(_biosData, framebuffer, (Resolution_t)res, rate);
embeddedartists 22:1a58a518435c 96
embeddedartists 22:1a58a518435c 97 if (err != DisplayError_Ok) {
embeddedartists 22:1a58a518435c 98 break;
embeddedartists 22:1a58a518435c 99 }
embeddedartists 22:1a58a518435c 100
embeddedartists 22:1a58a518435c 101 err = (DisplayError)_bios->displayInformation(_biosData, &_width, &_height, &_bpp, &_landscape, &_supportedRes, &_activeRes);
embeddedartists 22:1a58a518435c 102 if (err != DisplayError_Ok) {
embeddedartists 22:1a58a518435c 103 break;
embeddedartists 22:1a58a518435c 104 }
embeddedartists 22:1a58a518435c 105
embeddedartists 22:1a58a518435c 106 _poweredOn = true;
embeddedartists 22:1a58a518435c 107 } while(0);
embeddedartists 22:1a58a518435c 108 }
embeddedartists 22:1a58a518435c 109 }
embeddedartists 22:1a58a518435c 110 return err;
embeddedartists 22:1a58a518435c 111 }
embeddedartists 22:1a58a518435c 112
embeddedartists 22:1a58a518435c 113 BiosDisplay::DisplayError BiosDisplay::powerDown()
embeddedartists 22:1a58a518435c 114 {
embeddedartists 22:1a58a518435c 115 DisplayError err = DisplayError_Ok;
embeddedartists 22:1a58a518435c 116 if (_poweredOn) {
embeddedartists 22:1a58a518435c 117 err = (DisplayError)_bios->displayPowerDown(_biosData);
embeddedartists 22:1a58a518435c 118 _poweredOn = false;
embeddedartists 22:1a58a518435c 119 }
embeddedartists 22:1a58a518435c 120 return err;
embeddedartists 22:1a58a518435c 121 }
embeddedartists 22:1a58a518435c 122
embeddedartists 22:1a58a518435c 123 BiosDisplay::DisplayError BiosDisplay::backlight(int percent)
embeddedartists 22:1a58a518435c 124 {
embeddedartists 22:1a58a518435c 125 DisplayError err = DisplayError_Ok;
embeddedartists 22:1a58a518435c 126 if (!_initialized) {
embeddedartists 22:1a58a518435c 127 err = DisplayError_NoInit;
embeddedartists 22:1a58a518435c 128 } else {
embeddedartists 22:1a58a518435c 129 err = (DisplayError)_bios->displayBacklight(_biosData, percent);
embeddedartists 22:1a58a518435c 130 }
embeddedartists 22:1a58a518435c 131 return err;
embeddedartists 22:1a58a518435c 132 }
embeddedartists 22:1a58a518435c 133
embeddedartists 22:1a58a518435c 134 uint16_t BiosDisplay::width()
embeddedartists 22:1a58a518435c 135 {
embeddedartists 22:1a58a518435c 136 return _width;
embeddedartists 22:1a58a518435c 137 }
embeddedartists 22:1a58a518435c 138
embeddedartists 22:1a58a518435c 139 uint16_t BiosDisplay::height()
embeddedartists 22:1a58a518435c 140 {
embeddedartists 22:1a58a518435c 141 return _height;
embeddedartists 22:1a58a518435c 142 }
embeddedartists 22:1a58a518435c 143
embeddedartists 22:1a58a518435c 144 uint16_t BiosDisplay::bytesPerPixel()
embeddedartists 22:1a58a518435c 145 {
embeddedartists 22:1a58a518435c 146 return _bpp;
embeddedartists 22:1a58a518435c 147 }
embeddedartists 22:1a58a518435c 148
embeddedartists 22:1a58a518435c 149 uint32_t BiosDisplay::fbSize()
embeddedartists 22:1a58a518435c 150 {
embeddedartists 22:1a58a518435c 151 return _width * _height * _bpp;
embeddedartists 22:1a58a518435c 152 }
embeddedartists 22:1a58a518435c 153
embeddedartists 22:1a58a518435c 154 bool BiosDisplay::landscape()
embeddedartists 22:1a58a518435c 155 {
embeddedartists 22:1a58a518435c 156 return _landscape;
embeddedartists 22:1a58a518435c 157 }
embeddedartists 22:1a58a518435c 158
embeddedartists 22:1a58a518435c 159 void* BiosDisplay::allocateFramebuffer(Display::Resolution res)
embeddedartists 22:1a58a518435c 160 {
embeddedartists 22:1a58a518435c 161 if (_initialized) {
alindvall 39:e1cb4dd9bfeb 162 return malloc(_width*_height*bpp(res));
embeddedartists 22:1a58a518435c 163 }
embeddedartists 22:1a58a518435c 164 return NULL;
embeddedartists 22:1a58a518435c 165 }
embeddedartists 22:1a58a518435c 166
embeddedartists 31:d47cffcb0a3e 167 void* BiosDisplay::allocateFramebuffers(uint32_t num, Display::Resolution res)
embeddedartists 31:d47cffcb0a3e 168 {
embeddedartists 31:d47cffcb0a3e 169 if (_initialized && num>0) {
alindvall 39:e1cb4dd9bfeb 170 return malloc(_width*_height*bpp(res)*num);
embeddedartists 31:d47cffcb0a3e 171 }
embeddedartists 31:d47cffcb0a3e 172 return NULL;
embeddedartists 31:d47cffcb0a3e 173 }
embeddedartists 31:d47cffcb0a3e 174
embeddedartists 22:1a58a518435c 175 void BiosDisplay::setFramebuffer(void* buff)
embeddedartists 22:1a58a518435c 176 {
embeddedartists 22:1a58a518435c 177 LPC_LCD->UPBASE = (uint32_t)buff;
embeddedartists 22:1a58a518435c 178 }
embeddedartists 22:1a58a518435c 179
embeddedartists 22:1a58a518435c 180 void* BiosDisplay::swapFramebuffer(void* buff)
embeddedartists 22:1a58a518435c 181 {
embeddedartists 22:1a58a518435c 182 uint32_t old = LPC_LCD->UPBASE;
embeddedartists 22:1a58a518435c 183 LPC_LCD->UPBASE = (uint32_t)buff;
embeddedartists 22:1a58a518435c 184 return (void*)old;
embeddedartists 22:1a58a518435c 185 }
embeddedartists 22:1a58a518435c 186
embeddedartists 22:1a58a518435c 187 bool BiosDisplay::isSupported(Display::Resolution res)
embeddedartists 22:1a58a518435c 188 {
embeddedartists 22:1a58a518435c 189 return (_supportedRes & res);
embeddedartists 22:1a58a518435c 190 }
embeddedartists 22:1a58a518435c 191
embeddedartists 22:1a58a518435c 192 BiosDisplay::Resolution BiosDisplay::currentResolution()
embeddedartists 22:1a58a518435c 193 {
embeddedartists 22:1a58a518435c 194 return (Resolution)_activeRes;
embeddedartists 22:1a58a518435c 195 }