A library with drivers for different peripherals on the LPC4088 QuickStart Board or related add-on boards.
Dependents: LPC4088test LPC4088test_ledonly LPC4088test_deleteall LPC4088_RAMtest ... more
AR1021.cpp@19:74540582e639, 2014-12-19 (annotated)
- Committer:
- embeddedartists
- Date:
- Fri Dec 19 15:22:22 2014 +0000
- Revision:
- 19:74540582e639
- Parent:
- 12:15597e45eea0
Fixed bug in AR1021 driver causing problems when aborting calibration
Who changed what in which revision?
User | Revision | Line number | New 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 | 4:b32cf4ef45c5 | 20 | |
embeddedartists | 4:b32cf4ef45c5 | 21 | #include "mbed.h" |
embeddedartists | 4:b32cf4ef45c5 | 22 | #include "mbed_debug.h" |
embeddedartists | 4:b32cf4ef45c5 | 23 | |
embeddedartists | 4:b32cf4ef45c5 | 24 | #include "AR1021.h" |
embeddedartists | 4:b32cf4ef45c5 | 25 | |
embeddedartists | 4:b32cf4ef45c5 | 26 | /****************************************************************************** |
embeddedartists | 4:b32cf4ef45c5 | 27 | * Defines and typedefs |
embeddedartists | 4:b32cf4ef45c5 | 28 | *****************************************************************************/ |
embeddedartists | 4:b32cf4ef45c5 | 29 | |
embeddedartists | 4:b32cf4ef45c5 | 30 | #define AR1021_REG_TOUCH_THRESHOLD (0x02) |
embeddedartists | 4:b32cf4ef45c5 | 31 | #define AR1021_REG_SENS_FILTER (0x03) |
embeddedartists | 4:b32cf4ef45c5 | 32 | #define AR1021_REG_SAMPLING_FAST (0x04) |
embeddedartists | 4:b32cf4ef45c5 | 33 | #define AR1021_REG_SAMPLING_SLOW (0x05) |
embeddedartists | 4:b32cf4ef45c5 | 34 | #define AR1021_REG_ACC_FILTER_FAST (0x06) |
embeddedartists | 4:b32cf4ef45c5 | 35 | #define AR1021_REG_ACC_FILTER_SLOW (0x07) |
embeddedartists | 4:b32cf4ef45c5 | 36 | #define AR1021_REG_SPEED_THRESHOLD (0x08) |
embeddedartists | 4:b32cf4ef45c5 | 37 | #define AR1021_REG_SLEEP_DELAY (0x0A) |
embeddedartists | 4:b32cf4ef45c5 | 38 | #define AR1021_REG_PEN_UP_DELAY (0x0B) |
embeddedartists | 4:b32cf4ef45c5 | 39 | #define AR1021_REG_TOUCH_MODE (0x0C) |
embeddedartists | 4:b32cf4ef45c5 | 40 | #define AR1021_REG_TOUCH_OPTIONS (0x0D) |
embeddedartists | 4:b32cf4ef45c5 | 41 | #define AR1021_REG_CALIB_INSETS (0x0E) |
embeddedartists | 4:b32cf4ef45c5 | 42 | #define AR1021_REG_PEN_STATE_REPORT_DELAY (0x0F) |
embeddedartists | 4:b32cf4ef45c5 | 43 | #define AR1021_REG_TOUCH_REPORT_DELAY (0x11) |
embeddedartists | 4:b32cf4ef45c5 | 44 | |
embeddedartists | 4:b32cf4ef45c5 | 45 | |
embeddedartists | 4:b32cf4ef45c5 | 46 | #define AR1021_CMD_GET_VERSION (0x10) |
embeddedartists | 4:b32cf4ef45c5 | 47 | #define AR1021_CMD_ENABLE_TOUCH (0x12) |
embeddedartists | 4:b32cf4ef45c5 | 48 | #define AR1021_CMD_DISABLE_TOUCH (0x13) |
embeddedartists | 4:b32cf4ef45c5 | 49 | #define AR1021_CMD_CALIBRATE_MODE (0x14) |
embeddedartists | 4:b32cf4ef45c5 | 50 | #define AR1021_CMD_REGISTER_READ (0x20) |
embeddedartists | 4:b32cf4ef45c5 | 51 | #define AR1021_CMD_REGISTER_WRITE (0x21) |
embeddedartists | 4:b32cf4ef45c5 | 52 | #define AR1021_CMD_REGISTER_START_ADDR_REQUEST (0x22) |
embeddedartists | 4:b32cf4ef45c5 | 53 | #define AR1021_CMD_REGISTER_WRITE_TO_EEPROM (0x23) |
embeddedartists | 4:b32cf4ef45c5 | 54 | #define AR1021_CMD_EEPROM_READ (0x28) |
embeddedartists | 4:b32cf4ef45c5 | 55 | #define AR1021_CMD_EEPROM_WRITE (0x29) |
embeddedartists | 4:b32cf4ef45c5 | 56 | #define AR1021_CMD_EEPROM_WRITE_TO_REGISTERS (0x2B) |
embeddedartists | 4:b32cf4ef45c5 | 57 | |
embeddedartists | 4:b32cf4ef45c5 | 58 | #define AR1021_RESP_STAT_OK (0x00) |
embeddedartists | 4:b32cf4ef45c5 | 59 | #define AR1021_RESP_STAT_CMD_UNREC (0x01) |
embeddedartists | 4:b32cf4ef45c5 | 60 | #define AR1021_RESP_STAT_HDR_UNREC (0x03) |
embeddedartists | 4:b32cf4ef45c5 | 61 | #define AR1021_RESP_STAT_TIMEOUT (0x04) |
embeddedartists | 4:b32cf4ef45c5 | 62 | #define AR1021_RESP_STAT_CANCEL_CALIB (0xFC) |
embeddedartists | 4:b32cf4ef45c5 | 63 | |
embeddedartists | 4:b32cf4ef45c5 | 64 | |
embeddedartists | 4:b32cf4ef45c5 | 65 | #define AR1021_ERR_NO_HDR (-1000) |
embeddedartists | 4:b32cf4ef45c5 | 66 | #define AR1021_ERR_INV_LEN (-1001) |
embeddedartists | 4:b32cf4ef45c5 | 67 | #define AR1021_ERR_INV_RESP (-1002) |
embeddedartists | 4:b32cf4ef45c5 | 68 | #define AR1021_ERR_INV_RESPLEN (-1003) |
embeddedartists | 4:b32cf4ef45c5 | 69 | #define AR1021_ERR_TIMEOUT (-1004) |
embeddedartists | 4:b32cf4ef45c5 | 70 | |
embeddedartists | 4:b32cf4ef45c5 | 71 | // bit 7 is always 1 and bit 0 defines pen up or down |
embeddedartists | 4:b32cf4ef45c5 | 72 | #define AR1021_PEN_MASK (0x81) |
embeddedartists | 4:b32cf4ef45c5 | 73 | |
embeddedartists | 4:b32cf4ef45c5 | 74 | #define AR1021_NUM_CALIB_POINTS (4) |
embeddedartists | 4:b32cf4ef45c5 | 75 | |
embeddedartists | 4:b32cf4ef45c5 | 76 | AR1021::AR1021(PinName mosi, PinName miso, PinName sck, PinName cs, PinName siq) : |
embeddedartists | 4:b32cf4ef45c5 | 77 | _spi(mosi, miso, sck), _cs(cs), _siq(siq), _siqIrq(siq) |
embeddedartists | 4:b32cf4ef45c5 | 78 | { |
embeddedartists | 4:b32cf4ef45c5 | 79 | _cs = 1; // active low |
embeddedartists | 4:b32cf4ef45c5 | 80 | |
embeddedartists | 4:b32cf4ef45c5 | 81 | _spi.format(8, 1); |
embeddedartists | 4:b32cf4ef45c5 | 82 | _spi.frequency(500000); |
embeddedartists | 4:b32cf4ef45c5 | 83 | |
embeddedartists | 4:b32cf4ef45c5 | 84 | // default calibration inset is 25 -> (25/2 = 12.5%) |
embeddedartists | 4:b32cf4ef45c5 | 85 | _inset = 25; |
embeddedartists | 4:b32cf4ef45c5 | 86 | |
embeddedartists | 4:b32cf4ef45c5 | 87 | // make sure _calibPoint has an invalid value to begin with |
embeddedartists | 4:b32cf4ef45c5 | 88 | // correct value is set in calibrateStart() |
embeddedartists | 4:b32cf4ef45c5 | 89 | _calibPoint = AR1021_NUM_CALIB_POINTS+1; |
embeddedartists | 4:b32cf4ef45c5 | 90 | |
embeddedartists | 4:b32cf4ef45c5 | 91 | _x = 0; |
embeddedartists | 4:b32cf4ef45c5 | 92 | _y = 0; |
embeddedartists | 4:b32cf4ef45c5 | 93 | _pen = 0; |
embeddedartists | 4:b32cf4ef45c5 | 94 | |
embeddedartists | 4:b32cf4ef45c5 | 95 | _initialized = false; |
embeddedartists | 4:b32cf4ef45c5 | 96 | } |
embeddedartists | 4:b32cf4ef45c5 | 97 | |
embeddedartists | 4:b32cf4ef45c5 | 98 | |
embeddedartists | 4:b32cf4ef45c5 | 99 | bool AR1021::read(touchCoordinate_t &coord) { |
embeddedartists | 4:b32cf4ef45c5 | 100 | |
embeddedartists | 4:b32cf4ef45c5 | 101 | if (!_initialized) return false; |
embeddedartists | 4:b32cf4ef45c5 | 102 | |
embeddedartists | 4:b32cf4ef45c5 | 103 | coord.x = _x * _width/4095; |
embeddedartists | 4:b32cf4ef45c5 | 104 | coord.y = _y * _height/4095; |
embeddedartists | 4:b32cf4ef45c5 | 105 | coord.z = _pen; |
embeddedartists | 4:b32cf4ef45c5 | 106 | |
embeddedartists | 4:b32cf4ef45c5 | 107 | return true; |
embeddedartists | 4:b32cf4ef45c5 | 108 | } |
embeddedartists | 4:b32cf4ef45c5 | 109 | |
embeddedartists | 4:b32cf4ef45c5 | 110 | |
embeddedartists | 4:b32cf4ef45c5 | 111 | bool AR1021::init(uint16_t width, uint16_t height) { |
embeddedartists | 4:b32cf4ef45c5 | 112 | int result = 0; |
embeddedartists | 4:b32cf4ef45c5 | 113 | bool ok = false; |
embeddedartists | 4:b32cf4ef45c5 | 114 | int attempts = 0; |
embeddedartists | 4:b32cf4ef45c5 | 115 | |
embeddedartists | 4:b32cf4ef45c5 | 116 | _width = width; |
embeddedartists | 4:b32cf4ef45c5 | 117 | _height = height; |
embeddedartists | 4:b32cf4ef45c5 | 118 | |
embeddedartists | 4:b32cf4ef45c5 | 119 | while (1) { |
embeddedartists | 4:b32cf4ef45c5 | 120 | |
embeddedartists | 4:b32cf4ef45c5 | 121 | do { |
embeddedartists | 4:b32cf4ef45c5 | 122 | // disable touch |
embeddedartists | 4:b32cf4ef45c5 | 123 | result = cmd(AR1021_CMD_DISABLE_TOUCH, NULL, 0, NULL, 0); |
embeddedartists | 19:74540582e639 | 124 | if (result == -AR1021_RESP_STAT_CANCEL_CALIB) { |
embeddedartists | 19:74540582e639 | 125 | debug("calibration was cancelled, short delay and try again"); |
embeddedartists | 19:74540582e639 | 126 | wait_us(50); |
embeddedartists | 19:74540582e639 | 127 | result = cmd(AR1021_CMD_DISABLE_TOUCH, NULL, 0, NULL, 0); |
embeddedartists | 19:74540582e639 | 128 | } |
embeddedartists | 4:b32cf4ef45c5 | 129 | if (result != 0) { |
embeddedartists | 4:b32cf4ef45c5 | 130 | debug("disable touch failed (%d)\n", result); |
embeddedartists | 4:b32cf4ef45c5 | 131 | break; |
embeddedartists | 4:b32cf4ef45c5 | 132 | } |
embeddedartists | 19:74540582e639 | 133 | wait_us(50); |
embeddedartists | 4:b32cf4ef45c5 | 134 | |
embeddedartists | 4:b32cf4ef45c5 | 135 | char regOffset = 0; |
embeddedartists | 4:b32cf4ef45c5 | 136 | int regOffLen = 1; |
embeddedartists | 4:b32cf4ef45c5 | 137 | result = cmd(AR1021_CMD_REGISTER_START_ADDR_REQUEST, NULL, 0, |
embeddedartists | 4:b32cf4ef45c5 | 138 | ®Offset, ®OffLen); |
embeddedartists | 4:b32cf4ef45c5 | 139 | if (result != 0) { |
embeddedartists | 4:b32cf4ef45c5 | 140 | debug("register offset request failed (%d)\n", result); |
embeddedartists | 4:b32cf4ef45c5 | 141 | break; |
embeddedartists | 4:b32cf4ef45c5 | 142 | } |
embeddedartists | 4:b32cf4ef45c5 | 143 | |
embeddedartists | 4:b32cf4ef45c5 | 144 | // enable calibrated coordinates |
embeddedartists | 4:b32cf4ef45c5 | 145 | // high, low address, len, value |
embeddedartists | 4:b32cf4ef45c5 | 146 | char toptions[4] = {0x00, AR1021_REG_TOUCH_OPTIONS+regOffset, 0x01, 0x01}; |
embeddedartists | 4:b32cf4ef45c5 | 147 | result = cmd(AR1021_CMD_REGISTER_WRITE, toptions, 4, NULL, 0); |
embeddedartists | 4:b32cf4ef45c5 | 148 | if (result != 0) { |
embeddedartists | 4:b32cf4ef45c5 | 149 | debug("register write request failed (%d)\n", result); |
embeddedartists | 4:b32cf4ef45c5 | 150 | break; |
embeddedartists | 4:b32cf4ef45c5 | 151 | } |
embeddedartists | 4:b32cf4ef45c5 | 152 | |
embeddedartists | 4:b32cf4ef45c5 | 153 | // save registers to eeprom |
embeddedartists | 4:b32cf4ef45c5 | 154 | result = cmd(AR1021_CMD_REGISTER_WRITE_TO_EEPROM, NULL, 0, NULL, 0); |
embeddedartists | 4:b32cf4ef45c5 | 155 | if (result != 0) { |
embeddedartists | 4:b32cf4ef45c5 | 156 | debug("register write to eeprom failed (%d)\n", result); |
embeddedartists | 4:b32cf4ef45c5 | 157 | break; |
embeddedartists | 4:b32cf4ef45c5 | 158 | } |
embeddedartists | 4:b32cf4ef45c5 | 159 | |
embeddedartists | 4:b32cf4ef45c5 | 160 | // enable touch |
embeddedartists | 4:b32cf4ef45c5 | 161 | result = cmd(AR1021_CMD_ENABLE_TOUCH, NULL, 0, NULL, 0); |
embeddedartists | 4:b32cf4ef45c5 | 162 | if (result != 0) { |
embeddedartists | 4:b32cf4ef45c5 | 163 | debug("enable touch failed (%d)\n", result); |
embeddedartists | 4:b32cf4ef45c5 | 164 | break; |
embeddedartists | 4:b32cf4ef45c5 | 165 | } |
embeddedartists | 4:b32cf4ef45c5 | 166 | |
embeddedartists | 4:b32cf4ef45c5 | 167 | _siqIrq.rise(this, &AR1021::readTouchIrq); |
embeddedartists | 4:b32cf4ef45c5 | 168 | |
embeddedartists | 4:b32cf4ef45c5 | 169 | _initialized = true; |
embeddedartists | 4:b32cf4ef45c5 | 170 | ok = true; |
embeddedartists | 4:b32cf4ef45c5 | 171 | |
embeddedartists | 4:b32cf4ef45c5 | 172 | } while(0); |
embeddedartists | 4:b32cf4ef45c5 | 173 | |
embeddedartists | 4:b32cf4ef45c5 | 174 | if (ok) break; |
embeddedartists | 4:b32cf4ef45c5 | 175 | |
embeddedartists | 4:b32cf4ef45c5 | 176 | // try to run the initialize sequence at most 2 times |
embeddedartists | 4:b32cf4ef45c5 | 177 | if(++attempts >= 2) break; |
embeddedartists | 4:b32cf4ef45c5 | 178 | } |
embeddedartists | 4:b32cf4ef45c5 | 179 | |
embeddedartists | 4:b32cf4ef45c5 | 180 | |
embeddedartists | 4:b32cf4ef45c5 | 181 | return ok; |
embeddedartists | 4:b32cf4ef45c5 | 182 | } |
embeddedartists | 4:b32cf4ef45c5 | 183 | |
embeddedartists | 4:b32cf4ef45c5 | 184 | bool AR1021::calibrateStart() { |
embeddedartists | 4:b32cf4ef45c5 | 185 | bool ok = false; |
embeddedartists | 4:b32cf4ef45c5 | 186 | int result = 0; |
embeddedartists | 4:b32cf4ef45c5 | 187 | int attempts = 0; |
embeddedartists | 4:b32cf4ef45c5 | 188 | |
embeddedartists | 4:b32cf4ef45c5 | 189 | if (!_initialized) return false; |
embeddedartists | 4:b32cf4ef45c5 | 190 | |
embeddedartists | 4:b32cf4ef45c5 | 191 | _siqIrq.rise(NULL); |
embeddedartists | 4:b32cf4ef45c5 | 192 | |
embeddedartists | 4:b32cf4ef45c5 | 193 | while(1) { |
embeddedartists | 4:b32cf4ef45c5 | 194 | |
embeddedartists | 4:b32cf4ef45c5 | 195 | do { |
embeddedartists | 4:b32cf4ef45c5 | 196 | // disable touch |
embeddedartists | 4:b32cf4ef45c5 | 197 | result = cmd(AR1021_CMD_DISABLE_TOUCH, NULL, 0, NULL, 0); |
embeddedartists | 4:b32cf4ef45c5 | 198 | if (result != 0) { |
embeddedartists | 4:b32cf4ef45c5 | 199 | debug("disable touch failed (%d)\n", result); |
embeddedartists | 4:b32cf4ef45c5 | 200 | break; |
embeddedartists | 4:b32cf4ef45c5 | 201 | } |
embeddedartists | 4:b32cf4ef45c5 | 202 | |
embeddedartists | 4:b32cf4ef45c5 | 203 | char regOffset = 0; |
embeddedartists | 4:b32cf4ef45c5 | 204 | int regOffLen = 1; |
embeddedartists | 4:b32cf4ef45c5 | 205 | result = cmd(AR1021_CMD_REGISTER_START_ADDR_REQUEST, NULL, 0, |
embeddedartists | 4:b32cf4ef45c5 | 206 | ®Offset, ®OffLen); |
embeddedartists | 4:b32cf4ef45c5 | 207 | if (result != 0) { |
embeddedartists | 4:b32cf4ef45c5 | 208 | debug("register offset request failed (%d)\n", result); |
embeddedartists | 4:b32cf4ef45c5 | 209 | break; |
embeddedartists | 4:b32cf4ef45c5 | 210 | } |
embeddedartists | 4:b32cf4ef45c5 | 211 | |
embeddedartists | 4:b32cf4ef45c5 | 212 | // set insets |
embeddedartists | 4:b32cf4ef45c5 | 213 | // enable calibrated coordinates |
embeddedartists | 4:b32cf4ef45c5 | 214 | // high, low address, len, value |
embeddedartists | 4:b32cf4ef45c5 | 215 | char insets[4] = {0x00, AR1021_REG_CALIB_INSETS+regOffset, 0x01, _inset}; |
embeddedartists | 4:b32cf4ef45c5 | 216 | result = cmd(AR1021_CMD_REGISTER_WRITE, insets, 4, NULL, 0); |
embeddedartists | 4:b32cf4ef45c5 | 217 | if (result != 0) { |
embeddedartists | 4:b32cf4ef45c5 | 218 | debug("register write request failed (%d)\n", result); |
embeddedartists | 4:b32cf4ef45c5 | 219 | break; |
embeddedartists | 4:b32cf4ef45c5 | 220 | } |
embeddedartists | 4:b32cf4ef45c5 | 221 | |
embeddedartists | 4:b32cf4ef45c5 | 222 | // calibration mode |
embeddedartists | 4:b32cf4ef45c5 | 223 | char calibType = 4; |
embeddedartists | 4:b32cf4ef45c5 | 224 | result = cmd(AR1021_CMD_CALIBRATE_MODE, &calibType, 1, NULL, 0, false); |
embeddedartists | 4:b32cf4ef45c5 | 225 | if (result != 0) { |
embeddedartists | 4:b32cf4ef45c5 | 226 | debug("calibration mode failed (%d)\n", result); |
embeddedartists | 4:b32cf4ef45c5 | 227 | break; |
embeddedartists | 4:b32cf4ef45c5 | 228 | } |
embeddedartists | 4:b32cf4ef45c5 | 229 | |
embeddedartists | 4:b32cf4ef45c5 | 230 | _calibPoint = 0; |
embeddedartists | 4:b32cf4ef45c5 | 231 | ok = true; |
embeddedartists | 4:b32cf4ef45c5 | 232 | |
embeddedartists | 4:b32cf4ef45c5 | 233 | } while(0); |
embeddedartists | 4:b32cf4ef45c5 | 234 | |
embeddedartists | 4:b32cf4ef45c5 | 235 | if (ok) break; |
embeddedartists | 4:b32cf4ef45c5 | 236 | |
embeddedartists | 4:b32cf4ef45c5 | 237 | // try to run the calibrate mode sequence at most 2 times |
embeddedartists | 4:b32cf4ef45c5 | 238 | if (++attempts >= 2) break; |
embeddedartists | 4:b32cf4ef45c5 | 239 | } |
embeddedartists | 4:b32cf4ef45c5 | 240 | |
embeddedartists | 4:b32cf4ef45c5 | 241 | return ok; |
embeddedartists | 4:b32cf4ef45c5 | 242 | } |
embeddedartists | 4:b32cf4ef45c5 | 243 | |
embeddedartists | 4:b32cf4ef45c5 | 244 | bool AR1021::getNextCalibratePoint(uint16_t* x, uint16_t* y) { |
embeddedartists | 4:b32cf4ef45c5 | 245 | |
embeddedartists | 4:b32cf4ef45c5 | 246 | if (!_initialized) return false; |
embeddedartists | 4:b32cf4ef45c5 | 247 | if (x == NULL || y == NULL) return false; |
embeddedartists | 4:b32cf4ef45c5 | 248 | |
embeddedartists | 4:b32cf4ef45c5 | 249 | int xInset = (_width * _inset / 100) / 2; |
embeddedartists | 4:b32cf4ef45c5 | 250 | int yInset = (_height * _inset / 100) / 2; |
embeddedartists | 4:b32cf4ef45c5 | 251 | |
embeddedartists | 4:b32cf4ef45c5 | 252 | switch(_calibPoint) { |
embeddedartists | 4:b32cf4ef45c5 | 253 | case 0: |
embeddedartists | 4:b32cf4ef45c5 | 254 | *x = xInset; |
embeddedartists | 4:b32cf4ef45c5 | 255 | *y = yInset; |
embeddedartists | 4:b32cf4ef45c5 | 256 | break; |
embeddedartists | 4:b32cf4ef45c5 | 257 | case 1: |
embeddedartists | 4:b32cf4ef45c5 | 258 | *x = _width - xInset; |
embeddedartists | 4:b32cf4ef45c5 | 259 | *y = yInset; |
embeddedartists | 4:b32cf4ef45c5 | 260 | break; |
embeddedartists | 4:b32cf4ef45c5 | 261 | case 2: |
embeddedartists | 4:b32cf4ef45c5 | 262 | *x = _width - xInset; |
embeddedartists | 4:b32cf4ef45c5 | 263 | *y = _height - yInset; |
embeddedartists | 4:b32cf4ef45c5 | 264 | break; |
embeddedartists | 4:b32cf4ef45c5 | 265 | case 3: |
embeddedartists | 4:b32cf4ef45c5 | 266 | *x = xInset; |
embeddedartists | 4:b32cf4ef45c5 | 267 | *y = _height - yInset; |
embeddedartists | 4:b32cf4ef45c5 | 268 | break; |
embeddedartists | 4:b32cf4ef45c5 | 269 | default: |
embeddedartists | 4:b32cf4ef45c5 | 270 | return false; |
embeddedartists | 4:b32cf4ef45c5 | 271 | } |
embeddedartists | 4:b32cf4ef45c5 | 272 | |
embeddedartists | 4:b32cf4ef45c5 | 273 | return true; |
embeddedartists | 4:b32cf4ef45c5 | 274 | } |
embeddedartists | 4:b32cf4ef45c5 | 275 | |
embeddedartists | 4:b32cf4ef45c5 | 276 | bool AR1021::waitForCalibratePoint(bool* morePoints, uint32_t timeout) { |
embeddedartists | 4:b32cf4ef45c5 | 277 | int result = 0; |
embeddedartists | 4:b32cf4ef45c5 | 278 | bool ret = false; |
embeddedartists | 4:b32cf4ef45c5 | 279 | |
embeddedartists | 4:b32cf4ef45c5 | 280 | if (!_initialized) return false; |
embeddedartists | 4:b32cf4ef45c5 | 281 | |
embeddedartists | 4:b32cf4ef45c5 | 282 | do { |
embeddedartists | 4:b32cf4ef45c5 | 283 | if (morePoints == NULL || _calibPoint >= AR1021_NUM_CALIB_POINTS) { |
embeddedartists | 4:b32cf4ef45c5 | 284 | break; |
embeddedartists | 4:b32cf4ef45c5 | 285 | } |
embeddedartists | 4:b32cf4ef45c5 | 286 | |
embeddedartists | 4:b32cf4ef45c5 | 287 | // wait for response |
embeddedartists | 4:b32cf4ef45c5 | 288 | result = waitForCalibResponse(timeout); |
embeddedartists | 4:b32cf4ef45c5 | 289 | if (result != 0) { |
embeddedartists | 4:b32cf4ef45c5 | 290 | debug("wait for calibration response failed (%d)\n", result); |
embeddedartists | 4:b32cf4ef45c5 | 291 | break; |
embeddedartists | 4:b32cf4ef45c5 | 292 | } |
embeddedartists | 4:b32cf4ef45c5 | 293 | |
embeddedartists | 4:b32cf4ef45c5 | 294 | _calibPoint++; |
embeddedartists | 4:b32cf4ef45c5 | 295 | *morePoints = (_calibPoint < AR1021_NUM_CALIB_POINTS); |
embeddedartists | 4:b32cf4ef45c5 | 296 | |
embeddedartists | 4:b32cf4ef45c5 | 297 | |
embeddedartists | 4:b32cf4ef45c5 | 298 | // no more points -> enable touch |
embeddedartists | 4:b32cf4ef45c5 | 299 | if (!(*morePoints)) { |
embeddedartists | 4:b32cf4ef45c5 | 300 | |
embeddedartists | 4:b32cf4ef45c5 | 301 | // wait for calibration data to be written to eeprom |
embeddedartists | 4:b32cf4ef45c5 | 302 | // before enabling touch |
embeddedartists | 4:b32cf4ef45c5 | 303 | result = waitForCalibResponse(timeout); |
embeddedartists | 4:b32cf4ef45c5 | 304 | if (result != 0) { |
embeddedartists | 4:b32cf4ef45c5 | 305 | debug("wait for calibration response failed (%d)\n", result); |
embeddedartists | 4:b32cf4ef45c5 | 306 | break; |
embeddedartists | 4:b32cf4ef45c5 | 307 | } |
embeddedartists | 4:b32cf4ef45c5 | 308 | |
embeddedartists | 4:b32cf4ef45c5 | 309 | |
embeddedartists | 4:b32cf4ef45c5 | 310 | // clear chip-select since calibration is done; |
embeddedartists | 4:b32cf4ef45c5 | 311 | _cs = 1; |
embeddedartists | 4:b32cf4ef45c5 | 312 | |
embeddedartists | 4:b32cf4ef45c5 | 313 | result = cmd(AR1021_CMD_ENABLE_TOUCH, NULL, 0, NULL, 0); |
embeddedartists | 4:b32cf4ef45c5 | 314 | if (result != 0) { |
embeddedartists | 4:b32cf4ef45c5 | 315 | debug("enable touch failed (%d)\n", result); |
embeddedartists | 4:b32cf4ef45c5 | 316 | break; |
embeddedartists | 4:b32cf4ef45c5 | 317 | } |
embeddedartists | 4:b32cf4ef45c5 | 318 | |
embeddedartists | 4:b32cf4ef45c5 | 319 | _siqIrq.rise(this, &AR1021::readTouchIrq); |
embeddedartists | 4:b32cf4ef45c5 | 320 | } |
embeddedartists | 4:b32cf4ef45c5 | 321 | |
embeddedartists | 4:b32cf4ef45c5 | 322 | ret = true; |
embeddedartists | 4:b32cf4ef45c5 | 323 | |
embeddedartists | 4:b32cf4ef45c5 | 324 | } while (0); |
embeddedartists | 4:b32cf4ef45c5 | 325 | |
embeddedartists | 4:b32cf4ef45c5 | 326 | |
embeddedartists | 4:b32cf4ef45c5 | 327 | |
embeddedartists | 4:b32cf4ef45c5 | 328 | if (!ret) { |
embeddedartists | 4:b32cf4ef45c5 | 329 | // make sure to set chip-select off in case of an error |
embeddedartists | 4:b32cf4ef45c5 | 330 | _cs = 1; |
embeddedartists | 4:b32cf4ef45c5 | 331 | // calibration must restart if an error occurred |
embeddedartists | 4:b32cf4ef45c5 | 332 | _calibPoint = AR1021_NUM_CALIB_POINTS+1; |
embeddedartists | 4:b32cf4ef45c5 | 333 | } |
embeddedartists | 4:b32cf4ef45c5 | 334 | |
embeddedartists | 4:b32cf4ef45c5 | 335 | |
embeddedartists | 4:b32cf4ef45c5 | 336 | |
embeddedartists | 4:b32cf4ef45c5 | 337 | return ret; |
embeddedartists | 4:b32cf4ef45c5 | 338 | } |
embeddedartists | 4:b32cf4ef45c5 | 339 | |
embeddedartists | 4:b32cf4ef45c5 | 340 | int AR1021::cmd(char cmd, char* data, int len, char* respBuf, int* respLen, |
embeddedartists | 4:b32cf4ef45c5 | 341 | bool setCsOff) { |
embeddedartists | 4:b32cf4ef45c5 | 342 | |
embeddedartists | 4:b32cf4ef45c5 | 343 | int ret = 0; |
embeddedartists | 4:b32cf4ef45c5 | 344 | |
embeddedartists | 4:b32cf4ef45c5 | 345 | // command request |
embeddedartists | 4:b32cf4ef45c5 | 346 | // --------------- |
embeddedartists | 4:b32cf4ef45c5 | 347 | // 0x55 len cmd data |
embeddedartists | 4:b32cf4ef45c5 | 348 | // 0x55 = header |
embeddedartists | 4:b32cf4ef45c5 | 349 | // len = data length + cmd (1) |
embeddedartists | 4:b32cf4ef45c5 | 350 | // data = data to send |
embeddedartists | 4:b32cf4ef45c5 | 351 | |
embeddedartists | 4:b32cf4ef45c5 | 352 | _cs = 0; |
embeddedartists | 4:b32cf4ef45c5 | 353 | |
embeddedartists | 4:b32cf4ef45c5 | 354 | _spi.write(0x55); |
embeddedartists | 4:b32cf4ef45c5 | 355 | wait_us(50); // according to data sheet there must be an inter-byte delay of ~50us |
embeddedartists | 4:b32cf4ef45c5 | 356 | _spi.write(len+1); |
embeddedartists | 4:b32cf4ef45c5 | 357 | wait_us(50); |
embeddedartists | 4:b32cf4ef45c5 | 358 | _spi.write(cmd); |
embeddedartists | 4:b32cf4ef45c5 | 359 | wait_us(50); |
embeddedartists | 4:b32cf4ef45c5 | 360 | |
embeddedartists | 4:b32cf4ef45c5 | 361 | for(int i = 0; i < len; i++) { |
embeddedartists | 4:b32cf4ef45c5 | 362 | _spi.write(data[i]); |
embeddedartists | 4:b32cf4ef45c5 | 363 | wait_us(50); |
embeddedartists | 4:b32cf4ef45c5 | 364 | } |
embeddedartists | 4:b32cf4ef45c5 | 365 | |
embeddedartists | 4:b32cf4ef45c5 | 366 | |
embeddedartists | 4:b32cf4ef45c5 | 367 | // wait for response (siq goes high when response is available) |
embeddedartists | 4:b32cf4ef45c5 | 368 | Timer t; |
embeddedartists | 4:b32cf4ef45c5 | 369 | t.start(); |
embeddedartists | 4:b32cf4ef45c5 | 370 | while(_siq.read() != 1 && t.read_ms() < 1000); |
embeddedartists | 4:b32cf4ef45c5 | 371 | |
embeddedartists | 4:b32cf4ef45c5 | 372 | |
embeddedartists | 4:b32cf4ef45c5 | 373 | // command response |
embeddedartists | 4:b32cf4ef45c5 | 374 | // --------------- |
embeddedartists | 4:b32cf4ef45c5 | 375 | // 0x55 len status cmd data |
embeddedartists | 4:b32cf4ef45c5 | 376 | // 0x55 = header |
embeddedartists | 4:b32cf4ef45c5 | 377 | // len = number of bytes following the len byte |
embeddedartists | 4:b32cf4ef45c5 | 378 | // status = status |
embeddedartists | 4:b32cf4ef45c5 | 379 | // cmd = command ID |
embeddedartists | 4:b32cf4ef45c5 | 380 | // data = data to receive |
embeddedartists | 4:b32cf4ef45c5 | 381 | |
embeddedartists | 4:b32cf4ef45c5 | 382 | |
embeddedartists | 4:b32cf4ef45c5 | 383 | do { |
embeddedartists | 4:b32cf4ef45c5 | 384 | |
embeddedartists | 4:b32cf4ef45c5 | 385 | if (t.read_ms() >= 1000) { |
embeddedartists | 4:b32cf4ef45c5 | 386 | ret = AR1021_ERR_TIMEOUT; |
embeddedartists | 4:b32cf4ef45c5 | 387 | break; |
embeddedartists | 4:b32cf4ef45c5 | 388 | } |
embeddedartists | 4:b32cf4ef45c5 | 389 | |
embeddedartists | 4:b32cf4ef45c5 | 390 | int head = _spi.write(0); |
embeddedartists | 4:b32cf4ef45c5 | 391 | if (head != 0x55) { |
embeddedartists | 4:b32cf4ef45c5 | 392 | ret = AR1021_ERR_NO_HDR; |
embeddedartists | 4:b32cf4ef45c5 | 393 | break; |
embeddedartists | 4:b32cf4ef45c5 | 394 | } |
embeddedartists | 4:b32cf4ef45c5 | 395 | |
embeddedartists | 4:b32cf4ef45c5 | 396 | wait_us(50); |
embeddedartists | 4:b32cf4ef45c5 | 397 | int len = _spi.write(0); |
embeddedartists | 4:b32cf4ef45c5 | 398 | if (len < 2) { |
embeddedartists | 4:b32cf4ef45c5 | 399 | ret = AR1021_ERR_INV_LEN; |
embeddedartists | 4:b32cf4ef45c5 | 400 | break; |
embeddedartists | 4:b32cf4ef45c5 | 401 | } |
embeddedartists | 4:b32cf4ef45c5 | 402 | |
embeddedartists | 4:b32cf4ef45c5 | 403 | wait_us(50); |
embeddedartists | 4:b32cf4ef45c5 | 404 | int status = _spi.write(0); |
embeddedartists | 4:b32cf4ef45c5 | 405 | if (status != AR1021_RESP_STAT_OK) { |
embeddedartists | 4:b32cf4ef45c5 | 406 | ret = -status; |
embeddedartists | 4:b32cf4ef45c5 | 407 | break; |
embeddedartists | 4:b32cf4ef45c5 | 408 | } |
embeddedartists | 4:b32cf4ef45c5 | 409 | |
embeddedartists | 4:b32cf4ef45c5 | 410 | wait_us(50); |
embeddedartists | 4:b32cf4ef45c5 | 411 | int cmdId = _spi.write(0); |
embeddedartists | 4:b32cf4ef45c5 | 412 | if (cmdId != cmd) { |
embeddedartists | 4:b32cf4ef45c5 | 413 | ret = AR1021_ERR_INV_RESP; |
embeddedartists | 4:b32cf4ef45c5 | 414 | break; |
embeddedartists | 4:b32cf4ef45c5 | 415 | } |
embeddedartists | 4:b32cf4ef45c5 | 416 | |
embeddedartists | 4:b32cf4ef45c5 | 417 | if ( ((len-2) > 0 && respLen == NULL) |
embeddedartists | 4:b32cf4ef45c5 | 418 | || ((len-2) > 0 && respLen != NULL && *respLen < (len-2))) { |
embeddedartists | 4:b32cf4ef45c5 | 419 | ret = AR1021_ERR_INV_RESPLEN; |
embeddedartists | 4:b32cf4ef45c5 | 420 | break; |
embeddedartists | 4:b32cf4ef45c5 | 421 | } |
embeddedartists | 4:b32cf4ef45c5 | 422 | |
embeddedartists | 4:b32cf4ef45c5 | 423 | for (int i = 0; i < len-2;i++) { |
embeddedartists | 4:b32cf4ef45c5 | 424 | wait_us(50); |
embeddedartists | 4:b32cf4ef45c5 | 425 | respBuf[i] = _spi.write(0); |
embeddedartists | 4:b32cf4ef45c5 | 426 | } |
embeddedartists | 4:b32cf4ef45c5 | 427 | if (respLen != NULL) { |
embeddedartists | 4:b32cf4ef45c5 | 428 | *respLen = len-2; |
embeddedartists | 4:b32cf4ef45c5 | 429 | } |
embeddedartists | 4:b32cf4ef45c5 | 430 | |
embeddedartists | 4:b32cf4ef45c5 | 431 | // make sure we wait 50us before issuing a new cmd |
embeddedartists | 4:b32cf4ef45c5 | 432 | wait_us(50); |
embeddedartists | 4:b32cf4ef45c5 | 433 | |
embeddedartists | 4:b32cf4ef45c5 | 434 | } while (0); |
embeddedartists | 4:b32cf4ef45c5 | 435 | |
embeddedartists | 4:b32cf4ef45c5 | 436 | |
embeddedartists | 4:b32cf4ef45c5 | 437 | |
embeddedartists | 4:b32cf4ef45c5 | 438 | // disable chip-select if setCsOff is true or if an error occurred |
embeddedartists | 4:b32cf4ef45c5 | 439 | if (setCsOff || ret != 0) { |
embeddedartists | 4:b32cf4ef45c5 | 440 | _cs = 1; |
embeddedartists | 4:b32cf4ef45c5 | 441 | } |
embeddedartists | 4:b32cf4ef45c5 | 442 | |
embeddedartists | 4:b32cf4ef45c5 | 443 | |
embeddedartists | 4:b32cf4ef45c5 | 444 | |
embeddedartists | 4:b32cf4ef45c5 | 445 | return ret; |
embeddedartists | 4:b32cf4ef45c5 | 446 | } |
embeddedartists | 4:b32cf4ef45c5 | 447 | |
embeddedartists | 4:b32cf4ef45c5 | 448 | int AR1021::waitForCalibResponse(uint32_t timeout) { |
embeddedartists | 4:b32cf4ef45c5 | 449 | Timer t; |
embeddedartists | 4:b32cf4ef45c5 | 450 | int ret = 0; |
embeddedartists | 4:b32cf4ef45c5 | 451 | |
embeddedartists | 4:b32cf4ef45c5 | 452 | t.start(); |
embeddedartists | 4:b32cf4ef45c5 | 453 | |
embeddedartists | 4:b32cf4ef45c5 | 454 | // wait for siq |
embeddedartists | 4:b32cf4ef45c5 | 455 | while (_siq.read() != 1 && |
embeddedartists | 4:b32cf4ef45c5 | 456 | (timeout == 0 || (uint32_t)t.read_ms() < (int)timeout)); |
embeddedartists | 4:b32cf4ef45c5 | 457 | |
embeddedartists | 4:b32cf4ef45c5 | 458 | |
embeddedartists | 4:b32cf4ef45c5 | 459 | do { |
embeddedartists | 4:b32cf4ef45c5 | 460 | |
embeddedartists | 4:b32cf4ef45c5 | 461 | if (timeout > 0 && (uint32_t)t.read_ms() >= timeout) { |
embeddedartists | 4:b32cf4ef45c5 | 462 | ret = AR1021_ERR_TIMEOUT; |
embeddedartists | 4:b32cf4ef45c5 | 463 | break; |
embeddedartists | 4:b32cf4ef45c5 | 464 | } |
embeddedartists | 4:b32cf4ef45c5 | 465 | |
embeddedartists | 4:b32cf4ef45c5 | 466 | int head = _spi.write(0); |
embeddedartists | 4:b32cf4ef45c5 | 467 | if (head != 0x55) { |
embeddedartists | 4:b32cf4ef45c5 | 468 | ret = AR1021_ERR_NO_HDR; |
embeddedartists | 4:b32cf4ef45c5 | 469 | break; |
embeddedartists | 4:b32cf4ef45c5 | 470 | } |
embeddedartists | 4:b32cf4ef45c5 | 471 | |
embeddedartists | 4:b32cf4ef45c5 | 472 | wait_us(50); |
embeddedartists | 4:b32cf4ef45c5 | 473 | int len = _spi.write(0); |
embeddedartists | 4:b32cf4ef45c5 | 474 | if (len != 2) { |
embeddedartists | 4:b32cf4ef45c5 | 475 | ret = AR1021_ERR_INV_LEN; |
embeddedartists | 4:b32cf4ef45c5 | 476 | break; |
embeddedartists | 4:b32cf4ef45c5 | 477 | } |
embeddedartists | 4:b32cf4ef45c5 | 478 | |
embeddedartists | 4:b32cf4ef45c5 | 479 | wait_us(50); |
embeddedartists | 4:b32cf4ef45c5 | 480 | int status = _spi.write(0); |
embeddedartists | 4:b32cf4ef45c5 | 481 | if (status != AR1021_RESP_STAT_OK) { |
embeddedartists | 4:b32cf4ef45c5 | 482 | ret = -status; |
embeddedartists | 4:b32cf4ef45c5 | 483 | break; |
embeddedartists | 4:b32cf4ef45c5 | 484 | } |
embeddedartists | 4:b32cf4ef45c5 | 485 | |
embeddedartists | 4:b32cf4ef45c5 | 486 | wait_us(50); |
embeddedartists | 4:b32cf4ef45c5 | 487 | int cmdId = _spi.write(0); |
embeddedartists | 4:b32cf4ef45c5 | 488 | if (cmdId != 0x14) { |
embeddedartists | 4:b32cf4ef45c5 | 489 | ret = AR1021_ERR_INV_RESP; |
embeddedartists | 4:b32cf4ef45c5 | 490 | break; |
embeddedartists | 4:b32cf4ef45c5 | 491 | } |
embeddedartists | 4:b32cf4ef45c5 | 492 | |
embeddedartists | 4:b32cf4ef45c5 | 493 | |
embeddedartists | 4:b32cf4ef45c5 | 494 | // make sure we wait 50us before issuing a new cmd |
embeddedartists | 4:b32cf4ef45c5 | 495 | wait_us(50); |
embeddedartists | 4:b32cf4ef45c5 | 496 | |
embeddedartists | 4:b32cf4ef45c5 | 497 | } while (0); |
embeddedartists | 4:b32cf4ef45c5 | 498 | |
embeddedartists | 4:b32cf4ef45c5 | 499 | |
embeddedartists | 4:b32cf4ef45c5 | 500 | return ret; |
embeddedartists | 4:b32cf4ef45c5 | 501 | } |
embeddedartists | 4:b32cf4ef45c5 | 502 | |
embeddedartists | 4:b32cf4ef45c5 | 503 | |
embeddedartists | 4:b32cf4ef45c5 | 504 | void AR1021::readTouchIrq() { |
embeddedartists | 4:b32cf4ef45c5 | 505 | while(_siq.read() == 1) { |
embeddedartists | 4:b32cf4ef45c5 | 506 | |
embeddedartists | 4:b32cf4ef45c5 | 507 | _cs = 0; |
embeddedartists | 4:b32cf4ef45c5 | 508 | |
embeddedartists | 4:b32cf4ef45c5 | 509 | // touch coordinates are sent in a 5-byte data packet |
embeddedartists | 4:b32cf4ef45c5 | 510 | |
embeddedartists | 4:b32cf4ef45c5 | 511 | int pen = _spi.write(0); |
embeddedartists | 4:b32cf4ef45c5 | 512 | wait_us(50); |
embeddedartists | 4:b32cf4ef45c5 | 513 | |
embeddedartists | 4:b32cf4ef45c5 | 514 | int xlo = _spi.write(0); |
embeddedartists | 4:b32cf4ef45c5 | 515 | wait_us(50); |
embeddedartists | 4:b32cf4ef45c5 | 516 | |
embeddedartists | 4:b32cf4ef45c5 | 517 | int xhi = _spi.write(0); |
embeddedartists | 4:b32cf4ef45c5 | 518 | wait_us(50); |
embeddedartists | 4:b32cf4ef45c5 | 519 | |
embeddedartists | 4:b32cf4ef45c5 | 520 | int ylo = _spi.write(0); |
embeddedartists | 4:b32cf4ef45c5 | 521 | wait_us(50); |
embeddedartists | 4:b32cf4ef45c5 | 522 | |
embeddedartists | 4:b32cf4ef45c5 | 523 | int yhi = _spi.write(0); |
embeddedartists | 4:b32cf4ef45c5 | 524 | wait_us(50); |
embeddedartists | 4:b32cf4ef45c5 | 525 | |
embeddedartists | 4:b32cf4ef45c5 | 526 | _cs = 1; |
embeddedartists | 4:b32cf4ef45c5 | 527 | |
embeddedartists | 4:b32cf4ef45c5 | 528 | |
embeddedartists | 4:b32cf4ef45c5 | 529 | // pen down |
embeddedartists | 4:b32cf4ef45c5 | 530 | if ((pen&AR1021_PEN_MASK) == (1<<7|1<<0)) { |
embeddedartists | 4:b32cf4ef45c5 | 531 | _pen = 1; |
embeddedartists | 4:b32cf4ef45c5 | 532 | } |
embeddedartists | 4:b32cf4ef45c5 | 533 | // pen up |
embeddedartists | 4:b32cf4ef45c5 | 534 | else if ((pen&AR1021_PEN_MASK) == (1<<7)){ |
embeddedartists | 4:b32cf4ef45c5 | 535 | _pen = 0; |
embeddedartists | 4:b32cf4ef45c5 | 536 | } |
embeddedartists | 4:b32cf4ef45c5 | 537 | // invalid value |
embeddedartists | 4:b32cf4ef45c5 | 538 | else { |
embeddedartists | 4:b32cf4ef45c5 | 539 | continue; |
embeddedartists | 4:b32cf4ef45c5 | 540 | } |
embeddedartists | 4:b32cf4ef45c5 | 541 | |
embeddedartists | 4:b32cf4ef45c5 | 542 | _x = ((xhi<<7)|xlo); |
embeddedartists | 4:b32cf4ef45c5 | 543 | _y = ((yhi<<7)|ylo); |
embeddedartists | 4:b32cf4ef45c5 | 544 | |
embeddedartists | 4:b32cf4ef45c5 | 545 | } |
embeddedartists | 4:b32cf4ef45c5 | 546 | } |
embeddedartists | 4:b32cf4ef45c5 | 547 |