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EaLcdBoard.cpp@27:b623423ad6e2, 2017-12-05 (annotated)

Committer:
Brendan McDonnell
Date:
Tue Dec 05 12:16:26 2017 -0500
Branch:
mbed-os
Revision:
27:b623423ad6e2
Parent:
13:d868b74fd08e 
created branch mbed-os

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 12:15597e45eea0 1 /*
embeddedartists 12:15597e45eea0 2 * Copyright 2013 Embedded Artists AB
embeddedartists 12:15597e45eea0 3 *
embeddedartists 12:15597e45eea0 4 * Licensed under the Apache License, Version 2.0 (the "License");
embeddedartists 12:15597e45eea0 5 * you may not use this file except in compliance with the License.
embeddedartists 12:15597e45eea0 6 * You may obtain a copy of the License at
embeddedartists 12:15597e45eea0 7 *
embeddedartists 12:15597e45eea0 8 * http://www.apache.org/licenses/LICENSE-2.0
embeddedartists 12:15597e45eea0 9 *
embeddedartists 12:15597e45eea0 10 * Unless required by applicable law or agreed to in writing, software
embeddedartists 12:15597e45eea0 11 * distributed under the License is distributed on an "AS IS" BASIS,
embeddedartists 12:15597e45eea0 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
embeddedartists 12:15597e45eea0 13 * See the License for the specific language governing permissions and
embeddedartists 12:15597e45eea0 14 * limitations under the License.
embeddedartists 12:15597e45eea0 15 */
embeddedartists 4:b32cf4ef45c5 16
embeddedartists 4:b32cf4ef45c5 17 /******************************************************************************
embeddedartists 4:b32cf4ef45c5 18 * Includes
embeddedartists 4:b32cf4ef45c5 19 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 20
embeddedartists 0:0fdadbc3d852 21 #include "mbed.h"
embeddedartists 0:0fdadbc3d852 22 #include "EaLcdBoard.h"
embeddedartists 0:0fdadbc3d852 23
embeddedartists 4:b32cf4ef45c5 24 /******************************************************************************
embeddedartists 4:b32cf4ef45c5 25 * Defines and typedefs
embeddedartists 4:b32cf4ef45c5 26 *****************************************************************************/
embeddedartists 4:b32cf4ef45c5 27
embeddedartists 4:b32cf4ef45c5 28 #define PORT_PIN_BUG_IN_MBED_SDK
embeddedartists 4:b32cf4ef45c5 29
embeddedartists 0:0fdadbc3d852 30 #define LCDB_MAGIC 0xEA01CDAE
embeddedartists 0:0fdadbc3d852 31
embeddedartists 0:0fdadbc3d852 32
embeddedartists 0:0fdadbc3d852 33 #define LCDB_PCA9532_I2C_ADDR (0x64 << 1)
embeddedartists 0:0fdadbc3d852 34
embeddedartists 0:0fdadbc3d852 35 /* PCA9532 registers*/
embeddedartists 0:0fdadbc3d852 36 #define LCDB_PCA9532_INPUT0 0x00
embeddedartists 0:0fdadbc3d852 37 #define LCDB_PCA9532_INPUT1 0x01
embeddedartists 0:0fdadbc3d852 38 #define LCDB_PCA9532_PSC0 0x02
embeddedartists 0:0fdadbc3d852 39 #define LCDB_PCA9532_PWM0 0x03
embeddedartists 0:0fdadbc3d852 40 #define LCDB_PCA9532_PSC1 0x04
embeddedartists 0:0fdadbc3d852 41 #define LCDB_PCA9532_PWM1 0x05
embeddedartists 0:0fdadbc3d852 42 #define LCDB_PCA9532_LS0 0x06
embeddedartists 0:0fdadbc3d852 43 #define LCDB_PCA9532_LS1 0x07
embeddedartists 0:0fdadbc3d852 44 #define LCDB_PCA9532_LS2 0x08
embeddedartists 0:0fdadbc3d852 45 #define LCDB_PCA9532_LS3 0x09
embeddedartists 0:0fdadbc3d852 46 #define LCDB_PCA9532_AUTO_INC 0x10
embeddedartists 0:0fdadbc3d852 47
embeddedartists 0:0fdadbc3d852 48 #define LCDB_LS_MODE_ON 0x01
embeddedartists 0:0fdadbc3d852 49 #define LCDB_LS_MODE_BLINK0 0x02
embeddedartists 0:0fdadbc3d852 50 #define LCDB_LS_MODE_BLINK1 0x03
embeddedartists 0:0fdadbc3d852 51
embeddedartists 0:0fdadbc3d852 52 #define LCDB_CTRL_3V3 0x0001
embeddedartists 0:0fdadbc3d852 53 #define LCDB_CTRL_5V 0x0002
embeddedartists 0:0fdadbc3d852 54 #define LCDB_CTRL_DISP_EN 0x0010
embeddedartists 0:0fdadbc3d852 55 #define LCDB_CTRL_BL_EN 0x0080
embeddedartists 0:0fdadbc3d852 56 #define LCDB_CTRL_BL_C 0x0100
embeddedartists 0:0fdadbc3d852 57 #define LCDB_EEPROM_WP 0x8000
embeddedartists 0:0fdadbc3d852 58
embeddedartists 0:0fdadbc3d852 59 #define LCDB_EEPROM_I2C_ADDR (0x56 << 1)
embeddedartists 0:0fdadbc3d852 60 #define LCDB_EEPROM_PAGE_SIZE 32
embeddedartists 0:0fdadbc3d852 61 #define LCDB_EEPROM_TOTAL_SIZE 8192
embeddedartists 0:0fdadbc3d852 62
embeddedartists 0:0fdadbc3d852 63 /*
embeddedartists 0:0fdadbc3d852 64 * Set which sequence string version that is supported
embeddedartists 0:0fdadbc3d852 65 */
embeddedartists 4:b32cf4ef45c5 66 #define LCDB_SEQ_VER 2
embeddedartists 0:0fdadbc3d852 67
embeddedartists 0:0fdadbc3d852 68 #ifndef MIN
embeddedartists 0:0fdadbc3d852 69 #define MIN(x, y) (((x)<(y))?(x):(y))
embeddedartists 0:0fdadbc3d852 70 #endif
embeddedartists 0:0fdadbc3d852 71
embeddedartists 0:0fdadbc3d852 72 #define EA_LCD_TMP_BUFFER_SZ 256
embeddedartists 0:0fdadbc3d852 73 static char* eaLcdTmpBuffer[EA_LCD_TMP_BUFFER_SZ];
embeddedartists 0:0fdadbc3d852 74
embeddedartists 0:0fdadbc3d852 75
embeddedartists 0:0fdadbc3d852 76 /* Structure containing the parameters for the LCD panel as stored on LCD Board */
embeddedartists 0:0fdadbc3d852 77
embeddedartists 0:0fdadbc3d852 78 /* LCD display types */
embeddedartists 0:0fdadbc3d852 79 typedef enum {
embeddedartists 0:0fdadbc3d852 80 TFT = 0, /* standard TFT */
embeddedartists 0:0fdadbc3d852 81 ADTFT, /* advanced TFT */
embeddedartists 0:0fdadbc3d852 82 HRTFT, /* highly reflective TFT */
embeddedartists 0:0fdadbc3d852 83 MONO_4BIT, /* 4-bit mono */
embeddedartists 0:0fdadbc3d852 84 MONO_8BIT, /* 8-bit mono */
embeddedartists 0:0fdadbc3d852 85 CSTN /* color STN */
embeddedartists 0:0fdadbc3d852 86 } nxp_lcd_panel_t;
embeddedartists 0:0fdadbc3d852 87
embeddedartists 0:0fdadbc3d852 88 typedef struct {
embeddedartists 0:0fdadbc3d852 89 uint8_t h_back_porch; /* Horizontal back porch in clocks */
embeddedartists 0:0fdadbc3d852 90 uint8_t h_front_porch; /* Horizontal front porch in clocks */
embeddedartists 0:0fdadbc3d852 91 uint8_t h_sync_pulse_width; /* HSYNC pulse width in clocks */
embeddedartists 0:0fdadbc3d852 92 uint16_t pixels_per_line; /* Pixels per line (horizontal resolution) */
embeddedartists 0:0fdadbc3d852 93 uint8_t v_back_porch; /* Vertical back porch in clocks */
embeddedartists 0:0fdadbc3d852 94 uint8_t v_front_porch; /* Vertical front porch in clocks */
embeddedartists 0:0fdadbc3d852 95 uint8_t v_sync_pulse_width; /* VSYNC pulse width in clocks */
embeddedartists 0:0fdadbc3d852 96 uint16_t lines_per_panel; /* Lines per panel (vertical resolution) */
embeddedartists 0:0fdadbc3d852 97 uint8_t invert_output_enable; /* Invert output enable, 1 = invert*/
embeddedartists 0:0fdadbc3d852 98 uint8_t invert_panel_clock; /* Invert panel clock, 1 = invert*/
embeddedartists 0:0fdadbc3d852 99 uint8_t invert_hsync; /* Invert HSYNC, 1 = invert */
embeddedartists 0:0fdadbc3d852 100 uint8_t invert_vsync; /* Invert VSYNC, 1 = invert */
embeddedartists 0:0fdadbc3d852 101 uint8_t ac_bias_frequency; /* AC bias frequency in clocks */
embeddedartists 0:0fdadbc3d852 102 uint8_t bits_per_pixel; /* Maximum bits per pixel the display supports */
embeddedartists 0:0fdadbc3d852 103 uint32_t optimal_clock; /* Optimal clock rate (Hz) */
embeddedartists 0:0fdadbc3d852 104 nxp_lcd_panel_t lcd_panel_type; /* LCD panel type */
embeddedartists 0:0fdadbc3d852 105 uint8_t dual_panel; /* Dual panel, 1 = dual panel display */
embeddedartists 0:0fdadbc3d852 106 } nxp_lcd_param_t;
embeddedartists 0:0fdadbc3d852 107
embeddedartists 0:0fdadbc3d852 108 static uint32_t str_to_uint(char* str, uint32_t len);
embeddedartists 0:0fdadbc3d852 109
embeddedartists 0:0fdadbc3d852 110 EaLcdBoard::EaLcdBoard(PinName sda, PinName scl) : _i2c(sda, scl) {
embeddedartists 0:0fdadbc3d852 111 _blink0Shadow = 0;
embeddedartists 0:0fdadbc3d852 112 _blink1Shadow = 0;
embeddedartists 0:0fdadbc3d852 113 _ledStateShadow = 0;
embeddedartists 0:0fdadbc3d852 114 _lcdPwrOn = false;
embeddedartists 0:0fdadbc3d852 115 }
embeddedartists 0:0fdadbc3d852 116
embeddedartists 0:0fdadbc3d852 117 EaLcdBoard::Result EaLcdBoard::open(LcdController::Config* cfg, char* initSeq) {
embeddedartists 0:0fdadbc3d852 118
embeddedartists 0:0fdadbc3d852 119 EaLcdBoard::Result result = Ok;
embeddedartists 0:0fdadbc3d852 120
embeddedartists 0:0fdadbc3d852 121 // load LCD configuration from storage
embeddedartists 0:0fdadbc3d852 122 if (cfg == NULL) {
embeddedartists 0:0fdadbc3d852 123 result = getLcdConfig(&_cfg);
embeddedartists 0:0fdadbc3d852 124 cfg = &_cfg;
embeddedartists 0:0fdadbc3d852 125 }
embeddedartists 0:0fdadbc3d852 126
embeddedartists 0:0fdadbc3d852 127 // load init sequence from storage
embeddedartists 0:0fdadbc3d852 128 if (result == Ok && initSeq == NULL) {
embeddedartists 0:0fdadbc3d852 129 result = getInitSeq((char*)eaLcdTmpBuffer, EA_LCD_TMP_BUFFER_SZ);
embeddedartists 0:0fdadbc3d852 130 initSeq = (char*)eaLcdTmpBuffer;
embeddedartists 0:0fdadbc3d852 131 }
embeddedartists 0:0fdadbc3d852 132
embeddedartists 0:0fdadbc3d852 133 if (result != Ok) {
embeddedartists 0:0fdadbc3d852 134 return result;
embeddedartists 0:0fdadbc3d852 135 }
embeddedartists 0:0fdadbc3d852 136
embeddedartists 0:0fdadbc3d852 137 return parseInitString(initSeq, cfg);
embeddedartists 0:0fdadbc3d852 138 }
embeddedartists 0:0fdadbc3d852 139
embeddedartists 0:0fdadbc3d852 140 EaLcdBoard::Result EaLcdBoard::close() {
embeddedartists 0:0fdadbc3d852 141 int r = 0;
embeddedartists 0:0fdadbc3d852 142
embeddedartists 0:0fdadbc3d852 143 do {
embeddedartists 0:0fdadbc3d852 144 r = lcdCtrl.setPower(false);
embeddedartists 0:0fdadbc3d852 145 if (r != 0) break;
embeddedartists 0:0fdadbc3d852 146
embeddedartists 0:0fdadbc3d852 147 _lcdPwrOn = false;
embeddedartists 0:0fdadbc3d852 148
embeddedartists 0:0fdadbc3d852 149 r = lcdCtrl.close();
embeddedartists 0:0fdadbc3d852 150 } while(0);
embeddedartists 0:0fdadbc3d852 151
embeddedartists 0:0fdadbc3d852 152 if (r != 0) {
embeddedartists 0:0fdadbc3d852 153 return LcdAccessError;
embeddedartists 0:0fdadbc3d852 154 }
embeddedartists 0:0fdadbc3d852 155
embeddedartists 0:0fdadbc3d852 156 return Ok;
embeddedartists 0:0fdadbc3d852 157 }
embeddedartists 0:0fdadbc3d852 158
embeddedartists 0:0fdadbc3d852 159 EaLcdBoard::Result EaLcdBoard::setFrameBuffer(uint32_t address) {
embeddedartists 0:0fdadbc3d852 160 int r = 0;
embeddedartists 0:0fdadbc3d852 161
embeddedartists 0:0fdadbc3d852 162 do {
embeddedartists 0:0fdadbc3d852 163
embeddedartists 0:0fdadbc3d852 164 // begin by powering on the display
embeddedartists 0:0fdadbc3d852 165 if (!_lcdPwrOn) {
embeddedartists 0:0fdadbc3d852 166 r = lcdCtrl.setPower(true);
embeddedartists 0:0fdadbc3d852 167 if (r != 0) break;
embeddedartists 0:0fdadbc3d852 168
embeddedartists 0:0fdadbc3d852 169 _lcdPwrOn = true;
embeddedartists 0:0fdadbc3d852 170 }
embeddedartists 0:0fdadbc3d852 171
embeddedartists 0:0fdadbc3d852 172 // activate specified frame buffer
embeddedartists 0:0fdadbc3d852 173 r = lcdCtrl.setFrameBuffer(address);
embeddedartists 0:0fdadbc3d852 174 if (r != 0) break;
embeddedartists 0:0fdadbc3d852 175
embeddedartists 0:0fdadbc3d852 176 } while(0);
embeddedartists 0:0fdadbc3d852 177
embeddedartists 0:0fdadbc3d852 178 if (r != 0) {
embeddedartists 0:0fdadbc3d852 179 return LcdAccessError;
embeddedartists 0:0fdadbc3d852 180 }
embeddedartists 0:0fdadbc3d852 181
embeddedartists 0:0fdadbc3d852 182
embeddedartists 0:0fdadbc3d852 183 return Ok;
embeddedartists 0:0fdadbc3d852 184 }
embeddedartists 0:0fdadbc3d852 185
embeddedartists 0:0fdadbc3d852 186 EaLcdBoard::Result EaLcdBoard::getLcdConfig(LcdController::Config* cfg) {
embeddedartists 0:0fdadbc3d852 187 store_t h;
embeddedartists 0:0fdadbc3d852 188
embeddedartists 0:0fdadbc3d852 189 nxp_lcd_param_t lcdParam;
embeddedartists 0:0fdadbc3d852 190
embeddedartists 4:b32cf4ef45c5 191 if (cfg == NULL) {
embeddedartists 4:b32cf4ef45c5 192 return InvalidArgument;
embeddedartists 4:b32cf4ef45c5 193 }
embeddedartists 4:b32cf4ef45c5 194
embeddedartists 0:0fdadbc3d852 195 getStore(&h);
embeddedartists 0:0fdadbc3d852 196
embeddedartists 0:0fdadbc3d852 197 if (h.magic != LCDB_MAGIC) {
embeddedartists 0:0fdadbc3d852 198 return InvalidStorage;
embeddedartists 0:0fdadbc3d852 199 }
embeddedartists 0:0fdadbc3d852 200
embeddedartists 0:0fdadbc3d852 201 eepromRead((uint8_t*)&lcdParam, h.lcdParamOff,
embeddedartists 0:0fdadbc3d852 202 (h.initOff-h.lcdParamOff));
embeddedartists 0:0fdadbc3d852 203
embeddedartists 0:0fdadbc3d852 204 cfg->horizontalBackPorch = lcdParam.h_back_porch;
embeddedartists 0:0fdadbc3d852 205 cfg->horizontalFrontPorch = lcdParam.h_front_porch;
embeddedartists 0:0fdadbc3d852 206 cfg->hsync = lcdParam.h_sync_pulse_width;
embeddedartists 0:0fdadbc3d852 207 cfg->width = lcdParam.pixels_per_line;
embeddedartists 0:0fdadbc3d852 208 cfg->verticalBackPorch = lcdParam.v_back_porch;
embeddedartists 0:0fdadbc3d852 209 cfg->verticalFrontPorch = lcdParam.v_front_porch;
embeddedartists 0:0fdadbc3d852 210 cfg->vsync = lcdParam.v_sync_pulse_width;
embeddedartists 0:0fdadbc3d852 211 cfg->height = lcdParam.lines_per_panel;
embeddedartists 0:0fdadbc3d852 212 cfg->invertOutputEnable = (lcdParam.invert_output_enable == 1);
embeddedartists 0:0fdadbc3d852 213 cfg->invertPanelClock = (lcdParam.invert_panel_clock == 1);
embeddedartists 0:0fdadbc3d852 214 cfg->invertHsync = (lcdParam.invert_hsync == 1);
embeddedartists 0:0fdadbc3d852 215 cfg->invertVsync = (lcdParam.invert_vsync == 1);
embeddedartists 0:0fdadbc3d852 216 cfg->acBias = lcdParam.ac_bias_frequency;
embeddedartists 0:0fdadbc3d852 217 cfg->bpp = LcdController::Bpp_16_565;
embeddedartists 0:0fdadbc3d852 218 cfg->optimalClock = lcdParam.optimal_clock;
embeddedartists 0:0fdadbc3d852 219 cfg->panelType = (LcdController::LcdPanel)lcdParam.lcd_panel_type;
embeddedartists 0:0fdadbc3d852 220 cfg->dualPanel = (lcdParam.dual_panel == 1);
embeddedartists 0:0fdadbc3d852 221
embeddedartists 0:0fdadbc3d852 222 return Ok;
embeddedartists 0:0fdadbc3d852 223 }
embeddedartists 0:0fdadbc3d852 224
embeddedartists 0:0fdadbc3d852 225 EaLcdBoard::Result EaLcdBoard::getDisplayName(char* buf, int len) {
embeddedartists 0:0fdadbc3d852 226 store_t h;
embeddedartists 0:0fdadbc3d852 227
embeddedartists 4:b32cf4ef45c5 228 if (buf == NULL) {
embeddedartists 4:b32cf4ef45c5 229 return InvalidArgument;
embeddedartists 4:b32cf4ef45c5 230 }
embeddedartists 4:b32cf4ef45c5 231
embeddedartists 0:0fdadbc3d852 232 getStore(&h);
embeddedartists 0:0fdadbc3d852 233
embeddedartists 0:0fdadbc3d852 234 if (h.magic != LCDB_MAGIC) {
embeddedartists 0:0fdadbc3d852 235 return InvalidStorage;
embeddedartists 0:0fdadbc3d852 236 }
embeddedartists 0:0fdadbc3d852 237
embeddedartists 0:0fdadbc3d852 238 if (len < NameBufferSize) {
embeddedartists 0:0fdadbc3d852 239 return BufferTooSmall;
embeddedartists 0:0fdadbc3d852 240 }
embeddedartists 0:0fdadbc3d852 241
embeddedartists 0:0fdadbc3d852 242 strncpy(buf, (char*)h.lcd_name, NameBufferSize);
embeddedartists 0:0fdadbc3d852 243
embeddedartists 0:0fdadbc3d852 244 return Ok;
embeddedartists 0:0fdadbc3d852 245 }
embeddedartists 0:0fdadbc3d852 246
embeddedartists 0:0fdadbc3d852 247 EaLcdBoard::Result EaLcdBoard::getDisplayMfg(char* buf, int len) {
embeddedartists 0:0fdadbc3d852 248 store_t h;
embeddedartists 0:0fdadbc3d852 249
embeddedartists 4:b32cf4ef45c5 250 if (buf == NULL) {
embeddedartists 4:b32cf4ef45c5 251 return InvalidArgument;
embeddedartists 4:b32cf4ef45c5 252 }
embeddedartists 4:b32cf4ef45c5 253
embeddedartists 0:0fdadbc3d852 254 getStore(&h);
embeddedartists 0:0fdadbc3d852 255
embeddedartists 0:0fdadbc3d852 256 if (h.magic != LCDB_MAGIC) {
embeddedartists 0:0fdadbc3d852 257 return InvalidStorage;
embeddedartists 0:0fdadbc3d852 258 }
embeddedartists 0:0fdadbc3d852 259
embeddedartists 0:0fdadbc3d852 260 if (len < NameBufferSize) {
embeddedartists 0:0fdadbc3d852 261 return BufferTooSmall;
embeddedartists 0:0fdadbc3d852 262 }
embeddedartists 0:0fdadbc3d852 263
embeddedartists 0:0fdadbc3d852 264 strncpy(buf, (char*)h.lcd_mfg, NameBufferSize);
embeddedartists 0:0fdadbc3d852 265
embeddedartists 0:0fdadbc3d852 266 return Ok;
embeddedartists 0:0fdadbc3d852 267 }
embeddedartists 0:0fdadbc3d852 268
embeddedartists 0:0fdadbc3d852 269 EaLcdBoard::Result EaLcdBoard::getInitSeq(char* buf, int len) {
embeddedartists 0:0fdadbc3d852 270 store_t h;
embeddedartists 0:0fdadbc3d852 271
embeddedartists 4:b32cf4ef45c5 272 if (buf == NULL) {
embeddedartists 4:b32cf4ef45c5 273 return InvalidArgument;
embeddedartists 4:b32cf4ef45c5 274 }
embeddedartists 4:b32cf4ef45c5 275
embeddedartists 0:0fdadbc3d852 276 getStore(&h);
embeddedartists 0:0fdadbc3d852 277
embeddedartists 0:0fdadbc3d852 278 if (h.magic != LCDB_MAGIC) {
embeddedartists 0:0fdadbc3d852 279 return InvalidStorage;
embeddedartists 0:0fdadbc3d852 280 }
embeddedartists 0:0fdadbc3d852 281
embeddedartists 0:0fdadbc3d852 282 if ((h.pdOff-h.initOff) > len) {
embeddedartists 0:0fdadbc3d852 283 return BufferTooSmall;
embeddedartists 0:0fdadbc3d852 284 }
embeddedartists 0:0fdadbc3d852 285
embeddedartists 0:0fdadbc3d852 286 eepromRead((uint8_t*)buf, h.initOff,
embeddedartists 0:0fdadbc3d852 287 (h.pdOff-h.initOff));
embeddedartists 0:0fdadbc3d852 288
embeddedartists 0:0fdadbc3d852 289 return Ok;
embeddedartists 0:0fdadbc3d852 290 }
embeddedartists 0:0fdadbc3d852 291
embeddedartists 0:0fdadbc3d852 292 EaLcdBoard::Result EaLcdBoard::getPowerDownSeq(char* buf, int len) {
embeddedartists 0:0fdadbc3d852 293 store_t h;
embeddedartists 0:0fdadbc3d852 294
embeddedartists 4:b32cf4ef45c5 295 if (buf == NULL) {
embeddedartists 4:b32cf4ef45c5 296 return InvalidArgument;
embeddedartists 4:b32cf4ef45c5 297 }
embeddedartists 4:b32cf4ef45c5 298
embeddedartists 0:0fdadbc3d852 299 getStore(&h);
embeddedartists 0:0fdadbc3d852 300
embeddedartists 0:0fdadbc3d852 301 if (h.magic != LCDB_MAGIC) {
embeddedartists 0:0fdadbc3d852 302 return InvalidStorage;
embeddedartists 0:0fdadbc3d852 303 }
embeddedartists 0:0fdadbc3d852 304
embeddedartists 0:0fdadbc3d852 305 if ((h.tsOff-h.pdOff) > len) {
embeddedartists 0:0fdadbc3d852 306 return BufferTooSmall;
embeddedartists 0:0fdadbc3d852 307 }
embeddedartists 0:0fdadbc3d852 308
embeddedartists 0:0fdadbc3d852 309 eepromRead((uint8_t*)buf, h.pdOff,
embeddedartists 0:0fdadbc3d852 310 (h.tsOff-h.pdOff));
embeddedartists 0:0fdadbc3d852 311
embeddedartists 0:0fdadbc3d852 312 return Ok;
embeddedartists 0:0fdadbc3d852 313 }
embeddedartists 0:0fdadbc3d852 314
embeddedartists 4:b32cf4ef45c5 315 EaLcdBoard::Result EaLcdBoard::getTouchParameters(TouchParams_t* params) {
embeddedartists 4:b32cf4ef45c5 316 store_t h;
embeddedartists 4:b32cf4ef45c5 317
embeddedartists 4:b32cf4ef45c5 318 if (params == NULL) {
embeddedartists 4:b32cf4ef45c5 319 return InvalidArgument;
embeddedartists 4:b32cf4ef45c5 320 }
embeddedartists 4:b32cf4ef45c5 321
embeddedartists 4:b32cf4ef45c5 322 getStore(&h);
embeddedartists 4:b32cf4ef45c5 323
embeddedartists 4:b32cf4ef45c5 324 if (h.magic != LCDB_MAGIC) {
embeddedartists 4:b32cf4ef45c5 325 return InvalidStorage;
embeddedartists 4:b32cf4ef45c5 326 }
embeddedartists 4:b32cf4ef45c5 327
embeddedartists 4:b32cf4ef45c5 328
embeddedartists 4:b32cf4ef45c5 329 if (eepromRead((uint8_t*)params, h.tsOff,
embeddedartists 4:b32cf4ef45c5 330 (h.end-h.tsOff)) == -1) {
embeddedartists 4:b32cf4ef45c5 331 return InvalidStorage;
embeddedartists 4:b32cf4ef45c5 332 }
embeddedartists 4:b32cf4ef45c5 333
embeddedartists 4:b32cf4ef45c5 334
embeddedartists 4:b32cf4ef45c5 335 if (params->panelId <= TouchPanelInvalidFirst
embeddedartists 4:b32cf4ef45c5 336 || params->panelId >= TouchPanelInvalidLast) {
embeddedartists 4:b32cf4ef45c5 337 params->panelId = TouchPanelUnknown;
embeddedartists 4:b32cf4ef45c5 338 }
embeddedartists 4:b32cf4ef45c5 339
embeddedartists 4:b32cf4ef45c5 340
embeddedartists 4:b32cf4ef45c5 341 return Ok;
embeddedartists 4:b32cf4ef45c5 342 }
embeddedartists 4:b32cf4ef45c5 343
embeddedartists 4:b32cf4ef45c5 344 EaLcdBoard::Result EaLcdBoard::storeParameters(
embeddedartists 4:b32cf4ef45c5 345 const char* lcdName,
embeddedartists 4:b32cf4ef45c5 346 const char* lcdMfg,
embeddedartists 4:b32cf4ef45c5 347 LcdController::Config* cfg,
embeddedartists 4:b32cf4ef45c5 348 const char* initSeqStr,
embeddedartists 4:b32cf4ef45c5 349 const char* pdSeqStr,
embeddedartists 4:b32cf4ef45c5 350 TouchParams_t* touch,
embeddedartists 4:b32cf4ef45c5 351 bool controlWp)
embeddedartists 4:b32cf4ef45c5 352 {
embeddedartists 4:b32cf4ef45c5 353 store_t h;
embeddedartists 4:b32cf4ef45c5 354 nxp_lcd_param_t lcdParam;
embeddedartists 4:b32cf4ef45c5 355
embeddedartists 4:b32cf4ef45c5 356 if (lcdName == NULL || lcdMfg == NULL || cfg == NULL
embeddedartists 4:b32cf4ef45c5 357 || initSeqStr == NULL || pdSeqStr == NULL) {
embeddedartists 4:b32cf4ef45c5 358 return InvalidArgument;
embeddedartists 4:b32cf4ef45c5 359
embeddedartists 4:b32cf4ef45c5 360 }
embeddedartists 4:b32cf4ef45c5 361
embeddedartists 4:b32cf4ef45c5 362
embeddedartists 4:b32cf4ef45c5 363 lcdParam.h_back_porch = cfg->horizontalBackPorch;
embeddedartists 4:b32cf4ef45c5 364 lcdParam.h_front_porch = cfg->horizontalFrontPorch;
embeddedartists 4:b32cf4ef45c5 365 lcdParam.h_sync_pulse_width = cfg->hsync;
embeddedartists 4:b32cf4ef45c5 366 lcdParam.pixels_per_line = cfg->width;
embeddedartists 4:b32cf4ef45c5 367 lcdParam.v_back_porch = cfg->verticalBackPorch;
embeddedartists 4:b32cf4ef45c5 368 lcdParam.v_front_porch = cfg->verticalFrontPorch;
embeddedartists 4:b32cf4ef45c5 369 lcdParam.v_sync_pulse_width = cfg->vsync;
embeddedartists 4:b32cf4ef45c5 370 lcdParam.lines_per_panel = cfg->height;
embeddedartists 4:b32cf4ef45c5 371 lcdParam.invert_output_enable = (cfg->invertOutputEnable ? 1 : 0);
embeddedartists 4:b32cf4ef45c5 372 lcdParam.invert_panel_clock = (cfg->invertPanelClock ? 1 : 0);
embeddedartists 4:b32cf4ef45c5 373 lcdParam.invert_hsync = (cfg->invertHsync ? 1 : 0);
embeddedartists 4:b32cf4ef45c5 374 lcdParam.invert_vsync = (cfg->invertVsync ? 1 : 0);
embeddedartists 4:b32cf4ef45c5 375 lcdParam.ac_bias_frequency = cfg->acBias;
embeddedartists 4:b32cf4ef45c5 376 lcdParam.optimal_clock = cfg->optimalClock;
embeddedartists 4:b32cf4ef45c5 377 lcdParam.lcd_panel_type = (nxp_lcd_panel_t)cfg->panelType;
embeddedartists 4:b32cf4ef45c5 378 lcdParam.dual_panel = (cfg->dualPanel ? 1 : 0);
embeddedartists 4:b32cf4ef45c5 379
embeddedartists 4:b32cf4ef45c5 380
embeddedartists 4:b32cf4ef45c5 381 h.magic = LCDB_MAGIC;
embeddedartists 4:b32cf4ef45c5 382 strncpy((char*)h.lcd_name, lcdName, 30);
embeddedartists 4:b32cf4ef45c5 383 strncpy((char*)h.lcd_mfg, lcdMfg, 30);
embeddedartists 4:b32cf4ef45c5 384
embeddedartists 4:b32cf4ef45c5 385 h.lcdParamOff = sizeof(store_t);
embeddedartists 4:b32cf4ef45c5 386 h.initOff = h.lcdParamOff + sizeof(nxp_lcd_param_t);
embeddedartists 4:b32cf4ef45c5 387 h.pdOff = h.initOff + strlen(initSeqStr)+1;
embeddedartists 4:b32cf4ef45c5 388 h.tsOff = h.pdOff + strlen(pdSeqStr)+1;
embeddedartists 4:b32cf4ef45c5 389 h.end = h.tsOff + sizeof(TouchParams_t);
embeddedartists 4:b32cf4ef45c5 390
embeddedartists 4:b32cf4ef45c5 391 if (controlWp) setWriteProtect(false);
embeddedartists 4:b32cf4ef45c5 392 eepromWrite((uint8_t*)&h, 0, h.lcdParamOff);
embeddedartists 4:b32cf4ef45c5 393 eepromWrite((uint8_t*)&lcdParam, h.lcdParamOff, (h.initOff-h.lcdParamOff));
embeddedartists 4:b32cf4ef45c5 394 eepromWrite((uint8_t*)initSeqStr, h.initOff, (h.pdOff-h.initOff));
embeddedartists 4:b32cf4ef45c5 395 eepromWrite((uint8_t*)pdSeqStr, h.pdOff, (h.tsOff-h.pdOff));
embeddedartists 4:b32cf4ef45c5 396 eepromWrite((uint8_t*)touch, h.tsOff, (h.end-h.tsOff));
embeddedartists 4:b32cf4ef45c5 397 if (controlWp) setWriteProtect(true);
embeddedartists 4:b32cf4ef45c5 398
embeddedartists 4:b32cf4ef45c5 399 return Ok;
embeddedartists 4:b32cf4ef45c5 400 }
embeddedartists 4:b32cf4ef45c5 401
embeddedartists 0:0fdadbc3d852 402 EaLcdBoard::Result EaLcdBoard::getStore(store_t* store) {
embeddedartists 0:0fdadbc3d852 403 int num = 0;
embeddedartists 0:0fdadbc3d852 404
embeddedartists 0:0fdadbc3d852 405 if (store == NULL) return InvalidArgument;
embeddedartists 0:0fdadbc3d852 406
embeddedartists 0:0fdadbc3d852 407 num = eepromRead((uint8_t*)store, 0, sizeof(store_t));
embeddedartists 0:0fdadbc3d852 408 if (num < (int)sizeof(store_t)) {
embeddedartists 0:0fdadbc3d852 409 return InvalidStorage;
embeddedartists 0:0fdadbc3d852 410 }
embeddedartists 0:0fdadbc3d852 411
embeddedartists 0:0fdadbc3d852 412 return Ok;
embeddedartists 0:0fdadbc3d852 413 }
embeddedartists 0:0fdadbc3d852 414
embeddedartists 0:0fdadbc3d852 415 // ###########################
embeddedartists 0:0fdadbc3d852 416 // An EEPROM is used for persistent storage
embeddedartists 0:0fdadbc3d852 417 // ###########################
embeddedartists 0:0fdadbc3d852 418
embeddedartists 0:0fdadbc3d852 419 int EaLcdBoard::eepromRead(uint8_t* buf, uint16_t offset, uint16_t len) {
embeddedartists 0:0fdadbc3d852 420 int i = 0;
embeddedartists 0:0fdadbc3d852 421 char off[2];
embeddedartists 4:b32cf4ef45c5 422 uint16_t retLen = 0;
embeddedartists 0:0fdadbc3d852 423
embeddedartists 0:0fdadbc3d852 424 if (len > LCDB_EEPROM_TOTAL_SIZE || offset+len > LCDB_EEPROM_TOTAL_SIZE) {
embeddedartists 0:0fdadbc3d852 425 return -1;
embeddedartists 0:0fdadbc3d852 426 }
embeddedartists 0:0fdadbc3d852 427
embeddedartists 4:b32cf4ef45c5 428 wait_ms(10);
embeddedartists 4:b32cf4ef45c5 429
embeddedartists 0:0fdadbc3d852 430 off[0] = ((offset >> 8) & 0xff);
embeddedartists 0:0fdadbc3d852 431 off[1] = (offset & 0xff);
embeddedartists 0:0fdadbc3d852 432
embeddedartists 4:b32cf4ef45c5 433 do {
embeddedartists 4:b32cf4ef45c5 434 if (_i2c.write(LCDB_EEPROM_I2C_ADDR, (char*)off, 2) != 0) break;
embeddedartists 4:b32cf4ef45c5 435 for ( i = 0; i < 0x2000; i++);
embeddedartists 4:b32cf4ef45c5 436 if (_i2c.read(LCDB_EEPROM_I2C_ADDR, (char*)buf, len) != 0) break;
embeddedartists 0:0fdadbc3d852 437
embeddedartists 4:b32cf4ef45c5 438 retLen = len;
embeddedartists 4:b32cf4ef45c5 439 } while(0);
embeddedartists 4:b32cf4ef45c5 440
embeddedartists 4:b32cf4ef45c5 441 return retLen;
embeddedartists 0:0fdadbc3d852 442 }
embeddedartists 0:0fdadbc3d852 443
embeddedartists 0:0fdadbc3d852 444 int EaLcdBoard::eepromWrite(uint8_t* buf, uint16_t offset, uint16_t len) {
embeddedartists 0:0fdadbc3d852 445 int16_t written = 0;
embeddedartists 0:0fdadbc3d852 446 uint16_t wLen = 0;
embeddedartists 0:0fdadbc3d852 447 uint16_t off = offset;
embeddedartists 0:0fdadbc3d852 448 uint8_t tmp[LCDB_EEPROM_PAGE_SIZE+2];
embeddedartists 0:0fdadbc3d852 449
embeddedartists 0:0fdadbc3d852 450 if (len > LCDB_EEPROM_TOTAL_SIZE || offset+len > LCDB_EEPROM_TOTAL_SIZE) {
embeddedartists 0:0fdadbc3d852 451 return -1;
embeddedartists 0:0fdadbc3d852 452 }
embeddedartists 0:0fdadbc3d852 453
embeddedartists 4:b32cf4ef45c5 454 wait_ms(1);
embeddedartists 4:b32cf4ef45c5 455
embeddedartists 0:0fdadbc3d852 456 wLen = LCDB_EEPROM_PAGE_SIZE - (off % LCDB_EEPROM_PAGE_SIZE);
embeddedartists 0:0fdadbc3d852 457 wLen = MIN(wLen, len);
embeddedartists 0:0fdadbc3d852 458
embeddedartists 0:0fdadbc3d852 459 while (len) {
embeddedartists 0:0fdadbc3d852 460 tmp[0] = ((off >> 8) & 0xff);
embeddedartists 0:0fdadbc3d852 461 tmp[1] = (off & 0xff);
embeddedartists 0:0fdadbc3d852 462 memcpy(&tmp[2], (void*)&buf[written], wLen);
embeddedartists 4:b32cf4ef45c5 463 if (_i2c.write(LCDB_EEPROM_I2C_ADDR, (char*)tmp, wLen+2) != 0) break;
embeddedartists 0:0fdadbc3d852 464
embeddedartists 0:0fdadbc3d852 465 // delay to wait for a write cycle
embeddedartists 0:0fdadbc3d852 466 //eepromDelay();
embeddedartists 4:b32cf4ef45c5 467 wait_ms(10);
embeddedartists 0:0fdadbc3d852 468
embeddedartists 0:0fdadbc3d852 469 len -= wLen;
embeddedartists 0:0fdadbc3d852 470 written += wLen;
embeddedartists 0:0fdadbc3d852 471 off += wLen;
embeddedartists 0:0fdadbc3d852 472
embeddedartists 0:0fdadbc3d852 473 wLen = MIN(LCDB_EEPROM_PAGE_SIZE, len);
embeddedartists 0:0fdadbc3d852 474 }
embeddedartists 0:0fdadbc3d852 475
embeddedartists 0:0fdadbc3d852 476 return written;
embeddedartists 0:0fdadbc3d852 477 }
embeddedartists 0:0fdadbc3d852 478
embeddedartists 0:0fdadbc3d852 479 // ###########################
embeddedartists 0:0fdadbc3d852 480 // string parsing (initialization and power down strings)
embeddedartists 0:0fdadbc3d852 481 // ###########################
embeddedartists 0:0fdadbc3d852 482
embeddedartists 0:0fdadbc3d852 483 EaLcdBoard::Result EaLcdBoard::parseInitString(char* str, LcdController::Config* cfg) {
embeddedartists 0:0fdadbc3d852 484 char* c = NULL;
embeddedartists 0:0fdadbc3d852 485 uint32_t len = 0;
embeddedartists 0:0fdadbc3d852 486 Result result = Ok;
embeddedartists 0:0fdadbc3d852 487
embeddedartists 0:0fdadbc3d852 488 if (str == NULL) {
embeddedartists 0:0fdadbc3d852 489 return InvalidCommandString;
embeddedartists 0:0fdadbc3d852 490 }
embeddedartists 0:0fdadbc3d852 491
embeddedartists 0:0fdadbc3d852 492 while(*str != '\0') {
embeddedartists 0:0fdadbc3d852 493
embeddedartists 0:0fdadbc3d852 494 // skip whitespaces
embeddedartists 0:0fdadbc3d852 495 while(*str == ' ') {
embeddedartists 0:0fdadbc3d852 496 str++;
embeddedartists 0:0fdadbc3d852 497 }
embeddedartists 0:0fdadbc3d852 498
embeddedartists 0:0fdadbc3d852 499 c = str;
embeddedartists 0:0fdadbc3d852 500
embeddedartists 0:0fdadbc3d852 501 // find end of command
embeddedartists 0:0fdadbc3d852 502 while(*str != ',' && *str != '\0') {
embeddedartists 0:0fdadbc3d852 503 str++;
embeddedartists 0:0fdadbc3d852 504 }
embeddedartists 0:0fdadbc3d852 505
embeddedartists 0:0fdadbc3d852 506 len = (str-c);
embeddedartists 0:0fdadbc3d852 507
embeddedartists 0:0fdadbc3d852 508 if (*str == ',') {
embeddedartists 0:0fdadbc3d852 509 str++;
embeddedartists 0:0fdadbc3d852 510 }
embeddedartists 0:0fdadbc3d852 511
embeddedartists 0:0fdadbc3d852 512 switch (*c++) {
embeddedartists 0:0fdadbc3d852 513
embeddedartists 0:0fdadbc3d852 514 case 'v':
embeddedartists 0:0fdadbc3d852 515 result = checkVersion(c, len-1);
embeddedartists 0:0fdadbc3d852 516 break;
embeddedartists 0:0fdadbc3d852 517
embeddedartists 0:0fdadbc3d852 518 // sequence control command (pca9532)
embeddedartists 0:0fdadbc3d852 519 case 'c':
embeddedartists 0:0fdadbc3d852 520 execSeqCtrl(c, len-1);
embeddedartists 0:0fdadbc3d852 521 break;
embeddedartists 0:0fdadbc3d852 522
embeddedartists 0:0fdadbc3d852 523 // delay
embeddedartists 0:0fdadbc3d852 524 case 'd':
embeddedartists 0:0fdadbc3d852 525 execDelay(c, len-1);
embeddedartists 0:0fdadbc3d852 526 break;
embeddedartists 0:0fdadbc3d852 527
embeddedartists 0:0fdadbc3d852 528 // open lcd (init LCD controller)
embeddedartists 0:0fdadbc3d852 529 case 'o':
embeddedartists 0:0fdadbc3d852 530
embeddedartists 0:0fdadbc3d852 531 if (cfg != NULL) {
embeddedartists 0:0fdadbc3d852 532
embeddedartists 0:0fdadbc3d852 533 if (lcdCtrl.open(cfg) != 0) {
embeddedartists 0:0fdadbc3d852 534 result = LcdAccessError;
embeddedartists 0:0fdadbc3d852 535 }
embeddedartists 0:0fdadbc3d852 536 }
embeddedartists 0:0fdadbc3d852 537
embeddedartists 0:0fdadbc3d852 538 else {
embeddedartists 0:0fdadbc3d852 539 result = InvalidArgument;
embeddedartists 0:0fdadbc3d852 540 }
embeddedartists 0:0fdadbc3d852 541
embeddedartists 0:0fdadbc3d852 542 break;
embeddedartists 0:0fdadbc3d852 543
embeddedartists 4:b32cf4ef45c5 544 // exec pin set
embeddedartists 4:b32cf4ef45c5 545 case 'p':
embeddedartists 4:b32cf4ef45c5 546 execPinSet(c, len-1);
embeddedartists 4:b32cf4ef45c5 547 break;
embeddedartists 4:b32cf4ef45c5 548
embeddedartists 0:0fdadbc3d852 549 }
embeddedartists 0:0fdadbc3d852 550
embeddedartists 0:0fdadbc3d852 551 if (result != Ok) {
embeddedartists 0:0fdadbc3d852 552 break;
embeddedartists 0:0fdadbc3d852 553 }
embeddedartists 0:0fdadbc3d852 554
embeddedartists 0:0fdadbc3d852 555
embeddedartists 0:0fdadbc3d852 556 }
embeddedartists 0:0fdadbc3d852 557
embeddedartists 0:0fdadbc3d852 558
embeddedartists 0:0fdadbc3d852 559 return result;
embeddedartists 0:0fdadbc3d852 560 }
embeddedartists 0:0fdadbc3d852 561
embeddedartists 0:0fdadbc3d852 562 EaLcdBoard::Result EaLcdBoard::checkVersion(char* v, uint32_t len) {
embeddedartists 0:0fdadbc3d852 563 uint32_t ver = str_to_uint(v, len);
embeddedartists 0:0fdadbc3d852 564
embeddedartists 0:0fdadbc3d852 565 if (ver > LCDB_SEQ_VER) {
embeddedartists 0:0fdadbc3d852 566 return VersionNotSupported;
embeddedartists 0:0fdadbc3d852 567 }
embeddedartists 0:0fdadbc3d852 568
embeddedartists 0:0fdadbc3d852 569 return Ok;
embeddedartists 0:0fdadbc3d852 570 }
embeddedartists 0:0fdadbc3d852 571
embeddedartists 0:0fdadbc3d852 572 EaLcdBoard::Result EaLcdBoard::execDelay(char* del, uint32_t len) {
embeddedartists 0:0fdadbc3d852 573 wait_ms(str_to_uint(del, len));
embeddedartists 0:0fdadbc3d852 574
embeddedartists 0:0fdadbc3d852 575 return Ok;
embeddedartists 0:0fdadbc3d852 576 }
embeddedartists 0:0fdadbc3d852 577
embeddedartists 0:0fdadbc3d852 578 EaLcdBoard::Result EaLcdBoard::execSeqCtrl(char* cmd, uint32_t len) {
embeddedartists 0:0fdadbc3d852 579
embeddedartists 0:0fdadbc3d852 580 switch (*cmd++) {
embeddedartists 0:0fdadbc3d852 581
embeddedartists 0:0fdadbc3d852 582 // display enable
embeddedartists 0:0fdadbc3d852 583 case 'd':
embeddedartists 0:0fdadbc3d852 584 setDisplayEnableSignal(*cmd == '1');
embeddedartists 0:0fdadbc3d852 585 break;
embeddedartists 0:0fdadbc3d852 586
embeddedartists 0:0fdadbc3d852 587 // backlight contrast
embeddedartists 0:0fdadbc3d852 588 case 'c':
embeddedartists 0:0fdadbc3d852 589 setBacklightContrast(str_to_uint(cmd, len));
embeddedartists 0:0fdadbc3d852 590 break;
embeddedartists 0:0fdadbc3d852 591
embeddedartists 0:0fdadbc3d852 592 // 3v3 enable
embeddedartists 0:0fdadbc3d852 593 case '3':
embeddedartists 0:0fdadbc3d852 594 set3V3Signal(*cmd == '1');
embeddedartists 0:0fdadbc3d852 595 break;
embeddedartists 0:0fdadbc3d852 596
embeddedartists 0:0fdadbc3d852 597 // 5v enable
embeddedartists 0:0fdadbc3d852 598 case '5':
embeddedartists 0:0fdadbc3d852 599 set5VSignal(*cmd == '1');
embeddedartists 0:0fdadbc3d852 600 break;
embeddedartists 0:0fdadbc3d852 601 }
embeddedartists 0:0fdadbc3d852 602
embeddedartists 0:0fdadbc3d852 603 return Ok;
embeddedartists 0:0fdadbc3d852 604 }
embeddedartists 0:0fdadbc3d852 605
embeddedartists 4:b32cf4ef45c5 606 #ifdef PORT_PIN_BUG_IN_MBED_SDK
embeddedartists 4:b32cf4ef45c5 607 static PinName port_pin2(PortName port, int pin_n) {
embeddedartists 4:b32cf4ef45c5 608 return (PinName)(((port << 5) | pin_n));
embeddedartists 4:b32cf4ef45c5 609 }
embeddedartists 4:b32cf4ef45c5 610 #endif
embeddedartists 4:b32cf4ef45c5 611
embeddedartists 4:b32cf4ef45c5 612
embeddedartists 4:b32cf4ef45c5 613 EaLcdBoard::Result EaLcdBoard::execPinSet(char* cmd, uint32_t len) {
embeddedartists 4:b32cf4ef45c5 614
embeddedartists 4:b32cf4ef45c5 615 PortName port;
embeddedartists 4:b32cf4ef45c5 616
embeddedartists 4:b32cf4ef45c5 617 do {
embeddedartists 4:b32cf4ef45c5 618 // cmd: 0_02=1 means p0.2 = 1
embeddedartists 4:b32cf4ef45c5 619 if (len < 6) break;
embeddedartists 4:b32cf4ef45c5 620 if (cmd[1] != '_' || cmd[4] != '=') break;
embeddedartists 4:b32cf4ef45c5 621
embeddedartists 4:b32cf4ef45c5 622 // port
embeddedartists 4:b32cf4ef45c5 623 int portnum = cmd[0] - '0';
embeddedartists 4:b32cf4ef45c5 624 if (portnum < 0 || portnum > 5) break;
embeddedartists 4:b32cf4ef45c5 625 port = (PortName)portnum;
embeddedartists 4:b32cf4ef45c5 626
embeddedartists 4:b32cf4ef45c5 627 // pin
embeddedartists 4:b32cf4ef45c5 628 int pinnum = (10*(cmd[2]-'0'))+ cmd[3]-'0';
embeddedartists 4:b32cf4ef45c5 629 if (pinnum < 0 || pinnum > 31) break;
embeddedartists 4:b32cf4ef45c5 630
embeddedartists 4:b32cf4ef45c5 631 // value
embeddedartists 4:b32cf4ef45c5 632 int value = cmd[5]-'0';
embeddedartists 4:b32cf4ef45c5 633 if (!(value == 0 || value == 1)) break;
embeddedartists 4:b32cf4ef45c5 634
embeddedartists 4:b32cf4ef45c5 635 #ifdef PORT_PIN_BUG_IN_MBED_SDK
embeddedartists 4:b32cf4ef45c5 636 PinName pin = port_pin2(port, pinnum);
embeddedartists 4:b32cf4ef45c5 637 #else
embeddedartists 4:b32cf4ef45c5 638 PinName pin = port_pin(port, pinnum);
embeddedartists 4:b32cf4ef45c5 639 #endif
embeddedartists 4:b32cf4ef45c5 640
embeddedartists 4:b32cf4ef45c5 641 gpio_t gp;
embeddedartists 13:d868b74fd08e 642 gpio_init(&gp, pin);
embeddedartists 13:d868b74fd08e 643 gpio_dir(&gp, PIN_OUTPUT);
embeddedartists 13:d868b74fd08e 644 gpio_mode(&gp, PullNone);
embeddedartists 4:b32cf4ef45c5 645 gpio_write(&gp, value);
embeddedartists 4:b32cf4ef45c5 646
embeddedartists 4:b32cf4ef45c5 647 return Ok;
embeddedartists 4:b32cf4ef45c5 648
embeddedartists 4:b32cf4ef45c5 649 } while (false);
embeddedartists 4:b32cf4ef45c5 650
embeddedartists 4:b32cf4ef45c5 651
embeddedartists 4:b32cf4ef45c5 652 return InvalidCommandString;
embeddedartists 4:b32cf4ef45c5 653 }
embeddedartists 4:b32cf4ef45c5 654
embeddedartists 4:b32cf4ef45c5 655
embeddedartists 0:0fdadbc3d852 656 // ###########################
embeddedartists 0:0fdadbc3d852 657 // PCA9532 is used as a control inteface to the display.
embeddedartists 0:0fdadbc3d852 658 // voltages can be turned on/off and backlight can be controlled.
embeddedartists 0:0fdadbc3d852 659 // ###########################
embeddedartists 0:0fdadbc3d852 660
embeddedartists 0:0fdadbc3d852 661 // Helper function to set LED states
embeddedartists 0:0fdadbc3d852 662 void EaLcdBoard::setLsStates(uint16_t states, uint8_t* ls, uint8_t mode)
embeddedartists 0:0fdadbc3d852 663 {
embeddedartists 0:0fdadbc3d852 664 #define IS_LED_SET(bit, x) ( ( ((x) & (bit)) != 0 ) ? 1 : 0 )
embeddedartists 0:0fdadbc3d852 665
embeddedartists 0:0fdadbc3d852 666 int i = 0;
embeddedartists 0:0fdadbc3d852 667
embeddedartists 0:0fdadbc3d852 668 for (i = 0; i < 4; i++) {
embeddedartists 0:0fdadbc3d852 669
embeddedartists 0:0fdadbc3d852 670 ls[i] |= ( (IS_LED_SET(0x0001, states)*mode << 0)
embeddedartists 0:0fdadbc3d852 671 | (IS_LED_SET(0x0002, states)*mode << 2)
embeddedartists 0:0fdadbc3d852 672 | (IS_LED_SET(0x0004, states)*mode << 4)
embeddedartists 0:0fdadbc3d852 673 | (IS_LED_SET(0x0008, states)*mode << 6) );
embeddedartists 0:0fdadbc3d852 674
embeddedartists 0:0fdadbc3d852 675 states >>= 4;
embeddedartists 0:0fdadbc3d852 676 }
embeddedartists 0:0fdadbc3d852 677 }
embeddedartists 0:0fdadbc3d852 678
embeddedartists 0:0fdadbc3d852 679 void EaLcdBoard::setLeds(void)
embeddedartists 0:0fdadbc3d852 680 {
embeddedartists 0:0fdadbc3d852 681 uint8_t buf[5];
embeddedartists 0:0fdadbc3d852 682 uint8_t ls[4] = {0,0,0,0};
embeddedartists 0:0fdadbc3d852 683 uint16_t states = _ledStateShadow;
embeddedartists 0:0fdadbc3d852 684
embeddedartists 0:0fdadbc3d852 685 // LEDs in On/Off state
embeddedartists 0:0fdadbc3d852 686 setLsStates(states, ls, LCDB_LS_MODE_ON);
embeddedartists 0:0fdadbc3d852 687
embeddedartists 0:0fdadbc3d852 688 // set the LEDs that should blink
embeddedartists 0:0fdadbc3d852 689 setLsStates(_blink0Shadow, ls, LCDB_LS_MODE_BLINK0);
embeddedartists 0:0fdadbc3d852 690 setLsStates(_blink1Shadow, ls, LCDB_LS_MODE_BLINK1);
embeddedartists 0:0fdadbc3d852 691
embeddedartists 0:0fdadbc3d852 692 buf[0] = LCDB_PCA9532_LS0 | LCDB_PCA9532_AUTO_INC;
embeddedartists 0:0fdadbc3d852 693 buf[1] = ls[0];
embeddedartists 0:0fdadbc3d852 694 buf[2] = ls[1];
embeddedartists 0:0fdadbc3d852 695 buf[3] = ls[2];
embeddedartists 0:0fdadbc3d852 696 buf[4] = ls[3];
embeddedartists 0:0fdadbc3d852 697
embeddedartists 0:0fdadbc3d852 698 _i2c.write(LCDB_PCA9532_I2C_ADDR, (char*)buf, 5);
embeddedartists 0:0fdadbc3d852 699 }
embeddedartists 0:0fdadbc3d852 700
embeddedartists 0:0fdadbc3d852 701 void EaLcdBoard::pca9532_setLeds (uint16_t ledOnMask, uint16_t ledOffMask)
embeddedartists 0:0fdadbc3d852 702 {
embeddedartists 0:0fdadbc3d852 703 // turn off leds
embeddedartists 0:0fdadbc3d852 704 _ledStateShadow &= (~(ledOffMask) & 0xffff);
embeddedartists 0:0fdadbc3d852 705
embeddedartists 0:0fdadbc3d852 706 // ledOnMask has priority over ledOffMask
embeddedartists 0:0fdadbc3d852 707 _ledStateShadow |= ledOnMask;
embeddedartists 0:0fdadbc3d852 708
embeddedartists 0:0fdadbc3d852 709 // turn off blinking
embeddedartists 0:0fdadbc3d852 710 _blink0Shadow &= (~(ledOffMask) & 0xffff);
embeddedartists 0:0fdadbc3d852 711 _blink1Shadow &= (~(ledOffMask) & 0xffff);
embeddedartists 0:0fdadbc3d852 712
embeddedartists 0:0fdadbc3d852 713 setLeds();
embeddedartists 0:0fdadbc3d852 714 }
embeddedartists 0:0fdadbc3d852 715
embeddedartists 0:0fdadbc3d852 716 void EaLcdBoard::pca9532_setBlink0Period(uint8_t period)
embeddedartists 0:0fdadbc3d852 717 {
embeddedartists 0:0fdadbc3d852 718 uint8_t buf[2];
embeddedartists 0:0fdadbc3d852 719
embeddedartists 0:0fdadbc3d852 720 buf[0] = LCDB_PCA9532_PSC0;
embeddedartists 0:0fdadbc3d852 721 buf[1] = period;
embeddedartists 0:0fdadbc3d852 722
embeddedartists 0:0fdadbc3d852 723 _i2c.write(LCDB_PCA9532_I2C_ADDR, (char*)buf, 2);
embeddedartists 0:0fdadbc3d852 724 }
embeddedartists 0:0fdadbc3d852 725
embeddedartists 0:0fdadbc3d852 726 void EaLcdBoard::pca9532_setBlink0Duty(uint8_t duty)
embeddedartists 0:0fdadbc3d852 727 {
embeddedartists 0:0fdadbc3d852 728 uint8_t buf[2];
embeddedartists 0:0fdadbc3d852 729 uint32_t tmp = duty;
embeddedartists 0:0fdadbc3d852 730 if (tmp > 100) {
embeddedartists 0:0fdadbc3d852 731 tmp = 100;
embeddedartists 0:0fdadbc3d852 732 }
embeddedartists 0:0fdadbc3d852 733
embeddedartists 0:0fdadbc3d852 734 tmp = (255 * tmp)/100;
embeddedartists 0:0fdadbc3d852 735
embeddedartists 0:0fdadbc3d852 736 buf[0] = LCDB_PCA9532_PWM0;
embeddedartists 0:0fdadbc3d852 737 buf[1] = tmp;
embeddedartists 0:0fdadbc3d852 738
embeddedartists 0:0fdadbc3d852 739 _i2c.write(LCDB_PCA9532_I2C_ADDR, (char*)buf, 2);
embeddedartists 0:0fdadbc3d852 740 }
embeddedartists 0:0fdadbc3d852 741
embeddedartists 0:0fdadbc3d852 742 void EaLcdBoard::pca9532_setBlink0Leds(uint16_t ledMask)
embeddedartists 0:0fdadbc3d852 743 {
embeddedartists 0:0fdadbc3d852 744 _blink0Shadow |= ledMask;
embeddedartists 0:0fdadbc3d852 745 setLeds();
embeddedartists 0:0fdadbc3d852 746 }
embeddedartists 0:0fdadbc3d852 747
embeddedartists 4:b32cf4ef45c5 748 void EaLcdBoard::setWriteProtect(bool enable)
embeddedartists 4:b32cf4ef45c5 749 {
embeddedartists 4:b32cf4ef45c5 750 if (enable) {
embeddedartists 4:b32cf4ef45c5 751 pca9532_setLeds(0, LCDB_EEPROM_WP);
embeddedartists 4:b32cf4ef45c5 752 } else {
embeddedartists 4:b32cf4ef45c5 753 pca9532_setLeds(LCDB_EEPROM_WP, 0);
embeddedartists 4:b32cf4ef45c5 754 }
embeddedartists 4:b32cf4ef45c5 755 }
embeddedartists 4:b32cf4ef45c5 756
embeddedartists 0:0fdadbc3d852 757 void EaLcdBoard::set3V3Signal(bool enabled) {
embeddedartists 0:0fdadbc3d852 758 if (enabled) {
embeddedartists 0:0fdadbc3d852 759 pca9532_setLeds(LCDB_CTRL_3V3, 0);
embeddedartists 0:0fdadbc3d852 760 } else {
embeddedartists 0:0fdadbc3d852 761 pca9532_setLeds(0, LCDB_CTRL_3V3);
embeddedartists 0:0fdadbc3d852 762 }
embeddedartists 0:0fdadbc3d852 763 }
embeddedartists 0:0fdadbc3d852 764
embeddedartists 0:0fdadbc3d852 765 void EaLcdBoard::set5VSignal(bool enabled) {
embeddedartists 0:0fdadbc3d852 766 if (enabled) {
embeddedartists 0:0fdadbc3d852 767 pca9532_setLeds(LCDB_CTRL_5V, 0);
embeddedartists 0:0fdadbc3d852 768 } else {
embeddedartists 0:0fdadbc3d852 769 pca9532_setLeds(0, LCDB_CTRL_5V);
embeddedartists 0:0fdadbc3d852 770 }
embeddedartists 0:0fdadbc3d852 771 }
embeddedartists 0:0fdadbc3d852 772
embeddedartists 0:0fdadbc3d852 773 void EaLcdBoard::setDisplayEnableSignal(bool enabled) {
embeddedartists 0:0fdadbc3d852 774 if (!enabled) {
embeddedartists 0:0fdadbc3d852 775 pca9532_setLeds(LCDB_CTRL_DISP_EN, 0);
embeddedartists 0:0fdadbc3d852 776 } else {
embeddedartists 0:0fdadbc3d852 777 pca9532_setLeds(0, LCDB_CTRL_DISP_EN);
embeddedartists 0:0fdadbc3d852 778 }
embeddedartists 0:0fdadbc3d852 779 }
embeddedartists 0:0fdadbc3d852 780
embeddedartists 0:0fdadbc3d852 781 void EaLcdBoard::setBacklightContrast(uint32_t value) {
embeddedartists 0:0fdadbc3d852 782
embeddedartists 0:0fdadbc3d852 783 if (value > 100) return;
embeddedartists 0:0fdadbc3d852 784
embeddedartists 0:0fdadbc3d852 785 pca9532_setBlink0Duty(100-value);
embeddedartists 0:0fdadbc3d852 786 pca9532_setBlink0Period(0);
embeddedartists 0:0fdadbc3d852 787 pca9532_setBlink0Leds(LCDB_CTRL_BL_C);
embeddedartists 0:0fdadbc3d852 788 }
embeddedartists 0:0fdadbc3d852 789
embeddedartists 0:0fdadbc3d852 790
embeddedartists 0:0fdadbc3d852 791 // convert string to integer
embeddedartists 0:0fdadbc3d852 792 static uint32_t str_to_uint(char* str, uint32_t len)
embeddedartists 0:0fdadbc3d852 793 {
embeddedartists 0:0fdadbc3d852 794 uint32_t val = 0;
embeddedartists 0:0fdadbc3d852 795
embeddedartists 0:0fdadbc3d852 796 while(len > 0 && *str <= '9' && *str >= '0') {
embeddedartists 0:0fdadbc3d852 797 val = (val * 10) + (*str - '0');
embeddedartists 0:0fdadbc3d852 798 str++;
embeddedartists 0:0fdadbc3d852 799 len--;
embeddedartists 0:0fdadbc3d852 800 }
embeddedartists 0:0fdadbc3d852 801
embeddedartists 0:0fdadbc3d852 802 return val;
embeddedartists 0:0fdadbc3d852 803 }
embeddedartists 0:0fdadbc3d852 804
embeddedartists 0:0fdadbc3d852 805