This is the David Smart RA8875 Library with mods for working with FRDM-K64F
RA8875_Touch.cpp@169:1c1a495983bc, 2019-03-01 (annotated)
- Committer:
- WiredHome
- Date:
- Fri Mar 01 19:34:32 2019 +0000
- Revision:
- 169:1c1a495983bc
- Parent:
- 168:37a0c4d8791c
- Child:
- 171:f92c0f1f6db4
Additional debug and configuration for the GSL1680 Touch Controller.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
WiredHome | 78:faf49c381591 | 1 | /// This file contains the RA8875 Touch panel methods. |
WiredHome | 78:faf49c381591 | 2 | /// |
WiredHome | 124:1690a7ae871c | 3 | /// It combines both resistive and capacitive touch methods, and tries |
WiredHome | 124:1690a7ae871c | 4 | /// to make them nearly transparent alternates for each other. |
WiredHome | 124:1690a7ae871c | 5 | /// |
WiredHome | 78:faf49c381591 | 6 | #include "RA8875.h" |
WiredHome | 165:695c24cc5197 | 7 | #include "RA8875_Touch_FT5206.h" |
WiredHome | 165:695c24cc5197 | 8 | #include "RA8875_Touch_GSL1680.h" |
WiredHome | 78:faf49c381591 | 9 | |
WiredHome | 83:7bad0068cca0 | 10 | #define NOTOUCH_TIMEOUT_uS 100000 |
WiredHome | 83:7bad0068cca0 | 11 | #define TOUCH_TICKER_uS 1000 |
WiredHome | 83:7bad0068cca0 | 12 | |
WiredHome | 168:37a0c4d8791c | 13 | #define DEBUG "TUCH" |
WiredHome | 154:ad2450fc3dc3 | 14 | // ... |
WiredHome | 154:ad2450fc3dc3 | 15 | // INFO("Stuff to show %d", var); // new-line is automatically appended |
WiredHome | 154:ad2450fc3dc3 | 16 | // |
WiredHome | 154:ad2450fc3dc3 | 17 | #if (defined(DEBUG) && !defined(TARGET_LPC11U24)) |
WiredHome | 154:ad2450fc3dc3 | 18 | #define INFO(x, ...) std::printf("[INF %s %4d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__); |
WiredHome | 154:ad2450fc3dc3 | 19 | #define WARN(x, ...) std::printf("[WRN %s %4d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__); |
WiredHome | 154:ad2450fc3dc3 | 20 | #define ERR(x, ...) std::printf("[ERR %s %4d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__); |
WiredHome | 154:ad2450fc3dc3 | 21 | static void HexDump(const char * title, const uint8_t * p, int count) |
WiredHome | 154:ad2450fc3dc3 | 22 | { |
WiredHome | 154:ad2450fc3dc3 | 23 | int i; |
WiredHome | 154:ad2450fc3dc3 | 24 | char buf[100] = "0000: "; |
WiredHome | 154:ad2450fc3dc3 | 25 | |
WiredHome | 154:ad2450fc3dc3 | 26 | if (*title) |
WiredHome | 154:ad2450fc3dc3 | 27 | INFO("%s", title); |
WiredHome | 154:ad2450fc3dc3 | 28 | for (i=0; i<count; ) { |
WiredHome | 154:ad2450fc3dc3 | 29 | sprintf(buf + strlen(buf), "%02X ", *(p+i)); |
WiredHome | 154:ad2450fc3dc3 | 30 | if ((++i & 0x0F) == 0x00) { |
WiredHome | 154:ad2450fc3dc3 | 31 | INFO("%s", buf); |
WiredHome | 154:ad2450fc3dc3 | 32 | if (i < count) |
WiredHome | 154:ad2450fc3dc3 | 33 | sprintf(buf, "%04X: ", i); |
WiredHome | 154:ad2450fc3dc3 | 34 | else |
WiredHome | 154:ad2450fc3dc3 | 35 | buf[0] = '\0'; |
WiredHome | 154:ad2450fc3dc3 | 36 | } |
WiredHome | 154:ad2450fc3dc3 | 37 | } |
WiredHome | 154:ad2450fc3dc3 | 38 | if (strlen(buf)) |
WiredHome | 154:ad2450fc3dc3 | 39 | INFO("%s", buf); |
WiredHome | 154:ad2450fc3dc3 | 40 | } |
WiredHome | 154:ad2450fc3dc3 | 41 | #else |
WiredHome | 154:ad2450fc3dc3 | 42 | #define INFO(x, ...) |
WiredHome | 154:ad2450fc3dc3 | 43 | #define WARN(x, ...) |
WiredHome | 154:ad2450fc3dc3 | 44 | #define ERR(x, ...) |
WiredHome | 154:ad2450fc3dc3 | 45 | #define HexDump(a, b, c) |
WiredHome | 154:ad2450fc3dc3 | 46 | #endif |
WiredHome | 154:ad2450fc3dc3 | 47 | |
WiredHome | 124:1690a7ae871c | 48 | |
WiredHome | 78:faf49c381591 | 49 | RetCode_t RA8875::TouchPanelInit(void) |
WiredHome | 78:faf49c381591 | 50 | { |
WiredHome | 157:1565f38ca44b | 51 | RetCode_t r = noerror; |
WiredHome | 157:1565f38ca44b | 52 | |
WiredHome | 124:1690a7ae871c | 53 | panelTouched = false; |
WiredHome | 165:695c24cc5197 | 54 | if (useTouchPanel == TP_GSL1680) { |
WiredHome | 165:695c24cc5197 | 55 | INFO("TouchPanelInit: TP_GSL1680"); |
WiredHome | 169:1c1a495983bc | 56 | r = GSL1680_Init(); |
WiredHome | 165:695c24cc5197 | 57 | } else if (useTouchPanel == TP_FT5206) { |
WiredHome | 124:1690a7ae871c | 58 | // Set to normal mode |
WiredHome | 165:695c24cc5197 | 59 | INFO("TouchPanelInit: TP_FT5206"); |
WiredHome | 165:695c24cc5197 | 60 | r = FT5206_Init(); |
WiredHome | 124:1690a7ae871c | 61 | } else { |
WiredHome | 155:b3f225ae572c | 62 | INFO("TouchPanelInit: TP_RES"); |
WiredHome | 124:1690a7ae871c | 63 | //TPCR0: Set enable bit, default sample time, wakeup, and ADC clock |
WiredHome | 124:1690a7ae871c | 64 | WriteCommand(TPCR0, TP_ENABLE | TP_ADC_SAMPLE_DEFAULT_CLKS | TP_ADC_CLKDIV_DEFAULT); |
WiredHome | 124:1690a7ae871c | 65 | // TPCR1: Set auto/manual, Ref voltage, debounce, manual mode params |
WiredHome | 124:1690a7ae871c | 66 | WriteCommand(TPCR1, TP_MODE_DEFAULT | TP_DEBOUNCE_DEFAULT); |
WiredHome | 124:1690a7ae871c | 67 | WriteCommand(INTC1, ReadCommand(INTC1) | RA8875_INT_TP); // reg INTC1: Enable Touch Panel Interrupts (D2 = 1) |
WiredHome | 124:1690a7ae871c | 68 | WriteCommand(INTC2, RA8875_INT_TP); // reg INTC2: Clear any TP interrupt flag |
WiredHome | 124:1690a7ae871c | 69 | touchSample = 0; |
WiredHome | 124:1690a7ae871c | 70 | touchState = no_cal; |
WiredHome | 150:35a4db3081c1 | 71 | //touchTicker.attach_us(callback(this, &RA8875::_TouchTicker), TOUCH_TICKER_uS); |
WiredHome | 154:ad2450fc3dc3 | 72 | #if (MBED_MAJOR_VERSION >= 5) || (MBED_LIBRARY_VERSION > 122) // Is this the right version? |
WiredHome | 145:5eb2492acdda | 73 | touchTicker.attach_us(callback(this, &RA8875::_TouchTicker), TOUCH_TICKER_uS); |
WiredHome | 150:35a4db3081c1 | 74 | #else |
WiredHome | 150:35a4db3081c1 | 75 | touchTicker.attach_us(this, &RA8875::_TouchTicker, TOUCH_TICKER_uS); |
WiredHome | 150:35a4db3081c1 | 76 | #endif |
WiredHome | 150:35a4db3081c1 | 77 | |
WiredHome | 165:695c24cc5197 | 78 | timeSinceTouch.start(); |
WiredHome | 165:695c24cc5197 | 79 | timeSinceTouch.reset(); |
WiredHome | 157:1565f38ca44b | 80 | r = _internal_ts_cal(); |
WiredHome | 83:7bad0068cca0 | 81 | } |
WiredHome | 157:1565f38ca44b | 82 | return r; |
WiredHome | 78:faf49c381591 | 83 | } |
WiredHome | 78:faf49c381591 | 84 | |
WiredHome | 124:1690a7ae871c | 85 | |
WiredHome | 124:1690a7ae871c | 86 | RetCode_t RA8875::TouchPanelInit(uint8_t bTpEnable, uint8_t bTpAutoManual, uint8_t bTpDebounce, uint8_t bTpManualMode, uint8_t bTpAdcClkDiv, uint8_t bTpAdcSampleTime) |
WiredHome | 124:1690a7ae871c | 87 | { |
WiredHome | 165:695c24cc5197 | 88 | if (useTouchPanel == TP_GSL1680) { |
WiredHome | 165:695c24cc5197 | 89 | INFO("TouchPanelInit: TP_GSL1680"); |
WiredHome | 167:8aa3fb2a5a31 | 90 | /// @todo Added support for TP_GSL1680 |
WiredHome | 165:695c24cc5197 | 91 | } else if (useTouchPanel == TP_FT5206) { |
WiredHome | 165:695c24cc5197 | 92 | INFO("TouchPanelInit: TP_FT5206"); |
WiredHome | 124:1690a7ae871c | 93 | TouchPanelInit(); |
WiredHome | 124:1690a7ae871c | 94 | } else { |
WiredHome | 155:b3f225ae572c | 95 | INFO("TouchPanelInit: TP_RES"); |
WiredHome | 124:1690a7ae871c | 96 | // Parameter bounds check |
WiredHome | 124:1690a7ae871c | 97 | if( \ |
WiredHome | 124:1690a7ae871c | 98 | !(bTpEnable == TP_ENABLE || bTpEnable == TP_ENABLE) || \ |
WiredHome | 124:1690a7ae871c | 99 | !(bTpAutoManual == TP_MODE_AUTO || bTpAutoManual == TP_MODE_MANUAL) || \ |
WiredHome | 124:1690a7ae871c | 100 | !(bTpDebounce == TP_DEBOUNCE_OFF || bTpDebounce == TP_DEBOUNCE_ON) || \ |
WiredHome | 124:1690a7ae871c | 101 | !(bTpManualMode <= TP_MANUAL_LATCH_Y) || \ |
WiredHome | 124:1690a7ae871c | 102 | !(bTpAdcClkDiv <= TP_ADC_CLKDIV_128) || \ |
WiredHome | 124:1690a7ae871c | 103 | !(bTpAdcSampleTime <= TP_ADC_SAMPLE_65536_CLKS) \ |
WiredHome | 124:1690a7ae871c | 104 | ) return bad_parameter; |
WiredHome | 124:1690a7ae871c | 105 | // Construct the config byte for TPCR0 and write them |
WiredHome | 124:1690a7ae871c | 106 | WriteCommand(TPCR0, bTpEnable | bTpAdcClkDiv | bTpAdcSampleTime); // Note: Wakeup is never enabled |
WiredHome | 124:1690a7ae871c | 107 | // Construct the config byte for TPCR1 and write them |
WiredHome | 124:1690a7ae871c | 108 | WriteCommand(TPCR1, bTpManualMode | bTpDebounce | bTpManualMode); // Note: Always uses internal Vref. |
WiredHome | 124:1690a7ae871c | 109 | // Set up the interrupt flag and enable bits |
WiredHome | 124:1690a7ae871c | 110 | WriteCommand(INTC1, ReadCommand(INTC1) | RA8875_INT_TP); // reg INTC1: Enable Touch Panel Interrupts (D2 = 1) |
WiredHome | 124:1690a7ae871c | 111 | WriteCommand(INTC2, RA8875_INT_TP); // reg INTC2: Clear any TP interrupt flag |
WiredHome | 124:1690a7ae871c | 112 | touchSample = 0; |
WiredHome | 124:1690a7ae871c | 113 | touchState = no_cal; |
WiredHome | 124:1690a7ae871c | 114 | if (bTpEnable == TP_ENABLE) { |
WiredHome | 150:35a4db3081c1 | 115 | //touchTicker.attach_us(callback(this, &RA8875::_TouchTicker), TOUCH_TICKER_uS); |
WiredHome | 154:ad2450fc3dc3 | 116 | #if (MBED_MAJOR_VERSION >= 5) || (MBED_LIBRARY_VERSION > 122) // Is this the right version? |
WiredHome | 145:5eb2492acdda | 117 | touchTicker.attach_us(callback(this, &RA8875::_TouchTicker), TOUCH_TICKER_uS); |
WiredHome | 150:35a4db3081c1 | 118 | #else |
WiredHome | 150:35a4db3081c1 | 119 | touchTicker.attach_us(this, &RA8875::_TouchTicker, TOUCH_TICKER_uS); |
WiredHome | 150:35a4db3081c1 | 120 | #endif |
WiredHome | 150:35a4db3081c1 | 121 | |
WiredHome | 165:695c24cc5197 | 122 | timeSinceTouch.start(); |
WiredHome | 165:695c24cc5197 | 123 | timeSinceTouch.reset(); |
WiredHome | 124:1690a7ae871c | 124 | } else { |
WiredHome | 124:1690a7ae871c | 125 | touchTicker.detach(); |
WiredHome | 165:695c24cc5197 | 126 | timeSinceTouch.stop(); |
WiredHome | 124:1690a7ae871c | 127 | } |
WiredHome | 157:1565f38ca44b | 128 | _internal_ts_cal(); |
WiredHome | 124:1690a7ae871c | 129 | } |
WiredHome | 124:1690a7ae871c | 130 | return noerror; |
WiredHome | 124:1690a7ae871c | 131 | } |
WiredHome | 124:1690a7ae871c | 132 | |
WiredHome | 124:1690a7ae871c | 133 | |
WiredHome | 124:1690a7ae871c | 134 | int RA8875::TouchChannels(void) |
WiredHome | 124:1690a7ae871c | 135 | { |
WiredHome | 165:695c24cc5197 | 136 | if (useTouchPanel == TP_GSL1680) { |
WiredHome | 166:53fd4a876dac | 137 | return GSL1680_TOUCH_POINTS; // based on TP_GSL1680 firmware |
WiredHome | 165:695c24cc5197 | 138 | } else if (useTouchPanel == TP_FT5206) { |
WiredHome | 124:1690a7ae871c | 139 | return 5; // based on the FT5206 hardware |
WiredHome | 124:1690a7ae871c | 140 | } else if (useTouchPanel == TP_RES) { |
WiredHome | 124:1690a7ae871c | 141 | return 1; // based on the RA8875 resistive touch driver |
WiredHome | 124:1690a7ae871c | 142 | } else { |
WiredHome | 124:1690a7ae871c | 143 | return 0; // it isn't enabled, so there are none. |
WiredHome | 124:1690a7ae871c | 144 | } |
WiredHome | 124:1690a7ae871c | 145 | } |
WiredHome | 124:1690a7ae871c | 146 | |
WiredHome | 124:1690a7ae871c | 147 | |
WiredHome | 124:1690a7ae871c | 148 | // +----------------------------------------------------+ |
WiredHome | 124:1690a7ae871c | 149 | // | | |
WiredHome | 124:1690a7ae871c | 150 | // | 1 | |
WiredHome | 124:1690a7ae871c | 151 | // | | |
WiredHome | 124:1690a7ae871c | 152 | // | | |
WiredHome | 124:1690a7ae871c | 153 | // | 2 | |
WiredHome | 124:1690a7ae871c | 154 | // | | |
WiredHome | 124:1690a7ae871c | 155 | // | | |
WiredHome | 124:1690a7ae871c | 156 | // | 3 | |
WiredHome | 124:1690a7ae871c | 157 | // | | |
WiredHome | 124:1690a7ae871c | 158 | // +----------------------------------------------------+ |
WiredHome | 81:01da2e34283d | 159 | |
WiredHome | 81:01da2e34283d | 160 | RetCode_t RA8875::TouchPanelCalibrate(tpMatrix_t * matrix) |
WiredHome | 81:01da2e34283d | 161 | { |
WiredHome | 81:01da2e34283d | 162 | return TouchPanelCalibrate(NULL, matrix); |
WiredHome | 81:01da2e34283d | 163 | } |
WiredHome | 81:01da2e34283d | 164 | |
WiredHome | 88:bfddef6ec836 | 165 | RetCode_t RA8875::TouchPanelCalibrate(const char * msg, tpMatrix_t * matrix, int maxwait_s) |
WiredHome | 81:01da2e34283d | 166 | { |
WiredHome | 81:01da2e34283d | 167 | point_t pTest[3]; |
WiredHome | 81:01da2e34283d | 168 | point_t pSample[3]; |
WiredHome | 83:7bad0068cca0 | 169 | int x,y; |
WiredHome | 88:bfddef6ec836 | 170 | Timer timeout; // timeout guards for not-installed, stuck, user not present... |
WiredHome | 124:1690a7ae871c | 171 | |
WiredHome | 88:bfddef6ec836 | 172 | timeout.start(); |
WiredHome | 123:2f45e80fec5f | 173 | while (TouchPanelA2DFiltered(&x, &y) && timeout.read() < maxwait_s) { |
WiredHome | 83:7bad0068cca0 | 174 | wait_ms(20); |
WiredHome | 123:2f45e80fec5f | 175 | if (idle_callback) { |
WiredHome | 149:c62c4b2d6a15 | 176 | if (external_abort == (*idle_callback)(touchcal_wait, 0)) { |
WiredHome | 123:2f45e80fec5f | 177 | return external_abort; |
WiredHome | 123:2f45e80fec5f | 178 | } |
WiredHome | 123:2f45e80fec5f | 179 | } |
WiredHome | 123:2f45e80fec5f | 180 | } |
WiredHome | 81:01da2e34283d | 181 | cls(); |
WiredHome | 157:1565f38ca44b | 182 | if (msg) { // User defines the message |
WiredHome | 157:1565f38ca44b | 183 | if (*msg) puts(msg); // If any |
WiredHome | 157:1565f38ca44b | 184 | } else { // Default message |
WiredHome | 157:1565f38ca44b | 185 | puts("Touch '+' to calibrate the touch panel"); |
WiredHome | 157:1565f38ca44b | 186 | } |
WiredHome | 81:01da2e34283d | 187 | SetTextCursor(0,height()/2); |
WiredHome | 124:1690a7ae871c | 188 | pTest[0].x = 50; |
WiredHome | 124:1690a7ae871c | 189 | pTest[0].y = 50; |
WiredHome | 124:1690a7ae871c | 190 | pTest[1].x = width() - 50; |
WiredHome | 124:1690a7ae871c | 191 | pTest[1].y = height()/2; |
WiredHome | 124:1690a7ae871c | 192 | pTest[2].x = width()/2; |
WiredHome | 124:1690a7ae871c | 193 | pTest[2].y = height() - 50; |
WiredHome | 88:bfddef6ec836 | 194 | |
WiredHome | 81:01da2e34283d | 195 | for (int i=0; i<3; i++) { |
WiredHome | 81:01da2e34283d | 196 | foreground(Blue); |
WiredHome | 81:01da2e34283d | 197 | printf(" (%3d,%3d) => ", pTest[i].x, pTest[i].y); |
WiredHome | 157:1565f38ca44b | 198 | fillcircle(pTest[i].x,pTest[i].y, 20, White); |
WiredHome | 157:1565f38ca44b | 199 | line(pTest[i].x-10, pTest[i].y, pTest[i].x+10, pTest[i].y, Blue); |
WiredHome | 157:1565f38ca44b | 200 | line(pTest[i].x, pTest[i].y-10, pTest[i].x, pTest[i].y+10, Blue); |
WiredHome | 123:2f45e80fec5f | 201 | while (!TouchPanelA2DFiltered(&x, &y) && timeout.read() < maxwait_s) { |
WiredHome | 81:01da2e34283d | 202 | wait_ms(20); |
WiredHome | 123:2f45e80fec5f | 203 | if (idle_callback) { |
WiredHome | 149:c62c4b2d6a15 | 204 | if (external_abort == (*idle_callback)(touchcal_wait, 0)) { |
WiredHome | 123:2f45e80fec5f | 205 | return external_abort; |
WiredHome | 123:2f45e80fec5f | 206 | } |
WiredHome | 123:2f45e80fec5f | 207 | } |
WiredHome | 123:2f45e80fec5f | 208 | } |
WiredHome | 81:01da2e34283d | 209 | pSample[i].x = x; |
WiredHome | 81:01da2e34283d | 210 | pSample[i].y = y; |
WiredHome | 157:1565f38ca44b | 211 | fillcircle(pTest[i].x,pTest[i].y, 20, Black); // Erase the target |
WiredHome | 157:1565f38ca44b | 212 | //line(pTest[i].x-10, pTest[i].y, pTest[i].x+10, pTest[i].y, Black); |
WiredHome | 157:1565f38ca44b | 213 | //line(pTest[i].x, pTest[i].y-10, pTest[i].x, pTest[i].y+10, Black); |
WiredHome | 81:01da2e34283d | 214 | foreground(Blue); |
WiredHome | 81:01da2e34283d | 215 | printf(" (%4d,%4d)\r\n", x,y); |
WiredHome | 123:2f45e80fec5f | 216 | while (TouchPanelA2DFiltered(&x, &y) && timeout.read() < maxwait_s) { |
WiredHome | 81:01da2e34283d | 217 | wait_ms(20); |
WiredHome | 123:2f45e80fec5f | 218 | if (idle_callback) { |
WiredHome | 149:c62c4b2d6a15 | 219 | if (external_abort == (*idle_callback)(touchcal_wait, 0)) { |
WiredHome | 123:2f45e80fec5f | 220 | return external_abort; |
WiredHome | 123:2f45e80fec5f | 221 | } |
WiredHome | 123:2f45e80fec5f | 222 | } |
WiredHome | 123:2f45e80fec5f | 223 | } |
WiredHome | 123:2f45e80fec5f | 224 | for (int t=0; t<100; t++) { |
WiredHome | 123:2f45e80fec5f | 225 | wait_ms(20); |
WiredHome | 123:2f45e80fec5f | 226 | if (idle_callback) { |
WiredHome | 149:c62c4b2d6a15 | 227 | if (external_abort == (*idle_callback)(touchcal_wait, 0)) { |
WiredHome | 123:2f45e80fec5f | 228 | return external_abort; |
WiredHome | 123:2f45e80fec5f | 229 | } |
WiredHome | 123:2f45e80fec5f | 230 | } |
WiredHome | 123:2f45e80fec5f | 231 | } |
WiredHome | 81:01da2e34283d | 232 | } |
WiredHome | 88:bfddef6ec836 | 233 | if (timeout.read() >= maxwait_s) |
WiredHome | 88:bfddef6ec836 | 234 | return touch_cal_timeout; |
WiredHome | 88:bfddef6ec836 | 235 | else |
WiredHome | 88:bfddef6ec836 | 236 | return TouchPanelComputeCalibration(pTest, pSample, matrix); |
WiredHome | 81:01da2e34283d | 237 | } |
WiredHome | 81:01da2e34283d | 238 | |
WiredHome | 81:01da2e34283d | 239 | |
WiredHome | 81:01da2e34283d | 240 | /********************************************************************** |
WiredHome | 81:01da2e34283d | 241 | * |
WiredHome | 123:2f45e80fec5f | 242 | * Function: TouchPanelReadable() |
WiredHome | 81:01da2e34283d | 243 | * |
WiredHome | 81:01da2e34283d | 244 | * Description: Given a valid set of calibration factors and a point |
WiredHome | 81:01da2e34283d | 245 | * value reported by the touch screen, this function |
WiredHome | 81:01da2e34283d | 246 | * calculates and returns the true (or closest to true) |
WiredHome | 124:1690a7ae871c | 247 | * display point below the spot where the touch screen |
WiredHome | 81:01da2e34283d | 248 | * was touched. |
WiredHome | 124:1690a7ae871c | 249 | * |
WiredHome | 81:01da2e34283d | 250 | * |
WiredHome | 124:1690a7ae871c | 251 | * |
WiredHome | 81:01da2e34283d | 252 | * Argument(s): displayPtr (output) - Pointer to the calculated |
WiredHome | 81:01da2e34283d | 253 | * (true) display point. |
WiredHome | 81:01da2e34283d | 254 | * screenPtr (input) - Pointer to the reported touch |
WiredHome | 81:01da2e34283d | 255 | * screen point. |
WiredHome | 81:01da2e34283d | 256 | * matrixPtr (input) - Pointer to calibration factors |
WiredHome | 81:01da2e34283d | 257 | * matrix previously calculated |
WiredHome | 124:1690a7ae871c | 258 | * from a call to |
WiredHome | 81:01da2e34283d | 259 | * setCalibrationMatrix() |
WiredHome | 124:1690a7ae871c | 260 | * |
WiredHome | 81:01da2e34283d | 261 | * |
WiredHome | 124:1690a7ae871c | 262 | * The function simply solves for Xd and Yd by implementing the |
WiredHome | 124:1690a7ae871c | 263 | * computations required by the translation matrix. |
WiredHome | 124:1690a7ae871c | 264 | * |
WiredHome | 81:01da2e34283d | 265 | * /- -\ |
WiredHome | 81:01da2e34283d | 266 | * /- -\ /- -\ | | |
WiredHome | 81:01da2e34283d | 267 | * | | | | | Xs | |
WiredHome | 81:01da2e34283d | 268 | * | Xd | | A B C | | | |
WiredHome | 81:01da2e34283d | 269 | * | | = | | * | Ys | |
WiredHome | 81:01da2e34283d | 270 | * | Yd | | D E F | | | |
WiredHome | 81:01da2e34283d | 271 | * | | | | | 1 | |
WiredHome | 81:01da2e34283d | 272 | * \- -/ \- -/ | | |
WiredHome | 81:01da2e34283d | 273 | * \- -/ |
WiredHome | 124:1690a7ae871c | 274 | * |
WiredHome | 81:01da2e34283d | 275 | * It must be kept brief to avoid consuming CPU cycles. |
WiredHome | 81:01da2e34283d | 276 | * |
WiredHome | 124:1690a7ae871c | 277 | * Return: OK - the display point was correctly calculated |
WiredHome | 81:01da2e34283d | 278 | * and its value is in the output argument. |
WiredHome | 81:01da2e34283d | 279 | * NOT_OK - an error was detected and the function |
WiredHome | 81:01da2e34283d | 280 | * failed to return a valid point. |
WiredHome | 81:01da2e34283d | 281 | * |
WiredHome | 81:01da2e34283d | 282 | * NOTE! NOTE! NOTE! |
WiredHome | 81:01da2e34283d | 283 | * |
WiredHome | 81:01da2e34283d | 284 | * setCalibrationMatrix() and getDisplayPoint() will do fine |
WiredHome | 124:1690a7ae871c | 285 | * for you as they are, provided that your digitizer |
WiredHome | 81:01da2e34283d | 286 | * resolution does not exceed 10 bits (1024 values). Higher |
WiredHome | 81:01da2e34283d | 287 | * resolutions may cause the integer operations to overflow |
WiredHome | 124:1690a7ae871c | 288 | * and return incorrect values. If you wish to use these |
WiredHome | 124:1690a7ae871c | 289 | * functions with digitizer resolutions of 12 bits (4096 |
WiredHome | 124:1690a7ae871c | 290 | * values) you will either have to a) use 64-bit signed |
WiredHome | 124:1690a7ae871c | 291 | * integer variables and math, or b) judiciously modify the |
WiredHome | 124:1690a7ae871c | 292 | * operations to scale results by a factor of 2 or even 4. |
WiredHome | 81:01da2e34283d | 293 | * |
WiredHome | 81:01da2e34283d | 294 | */ |
WiredHome | 83:7bad0068cca0 | 295 | TouchCode_t RA8875::TouchPanelReadable(point_t * TouchPoint) |
WiredHome | 81:01da2e34283d | 296 | { |
WiredHome | 124:1690a7ae871c | 297 | TouchCode_t ts = no_touch; |
WiredHome | 124:1690a7ae871c | 298 | |
WiredHome | 165:695c24cc5197 | 299 | if (useTouchPanel == TP_FT5206) { |
WiredHome | 165:695c24cc5197 | 300 | ; |
WiredHome | 165:695c24cc5197 | 301 | } else if (useTouchPanel == TP_GSL1680) { |
WiredHome | 165:695c24cc5197 | 302 | ; |
WiredHome | 165:695c24cc5197 | 303 | } else if (useTouchPanel == TP_RES) { |
WiredHome | 124:1690a7ae871c | 304 | int a2dX = 0; |
WiredHome | 124:1690a7ae871c | 305 | int a2dY = 0; |
WiredHome | 124:1690a7ae871c | 306 | |
WiredHome | 124:1690a7ae871c | 307 | touchInfo[0].touchID = 0; |
WiredHome | 124:1690a7ae871c | 308 | ts = TouchPanelA2DFiltered(&a2dX, &a2dY); |
WiredHome | 124:1690a7ae871c | 309 | if (ts != no_touch) { |
WiredHome | 124:1690a7ae871c | 310 | panelTouched = true; |
WiredHome | 124:1690a7ae871c | 311 | numberOfTouchPoints = 1; |
WiredHome | 124:1690a7ae871c | 312 | |
WiredHome | 124:1690a7ae871c | 313 | if (tpMatrix.Divider != 0) { |
WiredHome | 103:7e0464ca6c5c | 314 | /* Operation order is important since we are doing integer */ |
WiredHome | 103:7e0464ca6c5c | 315 | /* math. Make sure you add all terms together before */ |
WiredHome | 103:7e0464ca6c5c | 316 | /* dividing, so that the remainder is not rounded off */ |
WiredHome | 103:7e0464ca6c5c | 317 | /* prematurely. */ |
WiredHome | 124:1690a7ae871c | 318 | touchInfo[0].coordinates.x = ( (tpMatrix.An * a2dX) + |
WiredHome | 127:db7f2c704693 | 319 | (tpMatrix.Bn * a2dY) + tpMatrix.Cn |
WiredHome | 103:7e0464ca6c5c | 320 | ) / tpMatrix.Divider ; |
WiredHome | 124:1690a7ae871c | 321 | touchInfo[0].coordinates.y = ( (tpMatrix.Dn * a2dX) + |
WiredHome | 127:db7f2c704693 | 322 | (tpMatrix.En * a2dY) + tpMatrix.Fn |
WiredHome | 103:7e0464ca6c5c | 323 | ) / tpMatrix.Divider ; |
WiredHome | 124:1690a7ae871c | 324 | } else { |
WiredHome | 124:1690a7ae871c | 325 | ts = no_cal; |
WiredHome | 103:7e0464ca6c5c | 326 | } |
WiredHome | 81:01da2e34283d | 327 | } else { |
WiredHome | 124:1690a7ae871c | 328 | numberOfTouchPoints = 0; |
WiredHome | 81:01da2e34283d | 329 | } |
WiredHome | 124:1690a7ae871c | 330 | touchInfo[0].touchCode = ts; |
WiredHome | 124:1690a7ae871c | 331 | } |
WiredHome | 165:695c24cc5197 | 332 | // For Resistive touch, panelTouched is computed above. |
WiredHome | 165:695c24cc5197 | 333 | // For Cap Sense, panelTouched is set in another process |
WiredHome | 124:1690a7ae871c | 334 | if (panelTouched == true) { |
WiredHome | 124:1690a7ae871c | 335 | panelTouched = false; |
WiredHome | 124:1690a7ae871c | 336 | if (TouchPoint) { |
WiredHome | 124:1690a7ae871c | 337 | *TouchPoint = touchInfo[0].coordinates; |
WiredHome | 124:1690a7ae871c | 338 | ts = touchInfo[0].touchCode; |
WiredHome | 155:b3f225ae572c | 339 | INFO("Touch[0] %2d (%4d,%4d)", touchInfo[0].touchCode, |
WiredHome | 155:b3f225ae572c | 340 | touchInfo[0].coordinates.x, touchInfo[0].coordinates.y); |
WiredHome | 130:d633e80840e0 | 341 | } else { |
WiredHome | 130:d633e80840e0 | 342 | ts = touch; |
WiredHome | 124:1690a7ae871c | 343 | } |
WiredHome | 81:01da2e34283d | 344 | } |
WiredHome | 83:7bad0068cca0 | 345 | return ts; |
WiredHome | 81:01da2e34283d | 346 | } |
WiredHome | 81:01da2e34283d | 347 | |
WiredHome | 166:53fd4a876dac | 348 | uint8_t RA8875::TouchID(uint8_t channel) |
WiredHome | 166:53fd4a876dac | 349 | { |
WiredHome | 166:53fd4a876dac | 350 | if (channel >= TouchChannels()) |
WiredHome | 166:53fd4a876dac | 351 | channel = 0; |
WiredHome | 166:53fd4a876dac | 352 | return touchInfo[channel].touchID; |
WiredHome | 166:53fd4a876dac | 353 | } |
WiredHome | 166:53fd4a876dac | 354 | |
WiredHome | 166:53fd4a876dac | 355 | TouchCode_t RA8875::TouchCode(uint8_t channel) |
WiredHome | 166:53fd4a876dac | 356 | { |
WiredHome | 166:53fd4a876dac | 357 | if (channel >= TouchChannels()) |
WiredHome | 166:53fd4a876dac | 358 | channel = 0; |
WiredHome | 166:53fd4a876dac | 359 | return touchInfo[channel].touchCode; |
WiredHome | 166:53fd4a876dac | 360 | } |
WiredHome | 166:53fd4a876dac | 361 | |
WiredHome | 166:53fd4a876dac | 362 | point_t RA8875::TouchCoordinates(uint8_t channel) |
WiredHome | 166:53fd4a876dac | 363 | { |
WiredHome | 166:53fd4a876dac | 364 | if (channel >= TouchChannels()) |
WiredHome | 166:53fd4a876dac | 365 | channel = 0; |
WiredHome | 166:53fd4a876dac | 366 | return touchInfo[channel].coordinates; |
WiredHome | 166:53fd4a876dac | 367 | } |
WiredHome | 81:01da2e34283d | 368 | |
WiredHome | 85:022bba13c5c4 | 369 | TouchCode_t RA8875::TouchPanelGet(point_t * TouchPoint) |
WiredHome | 85:022bba13c5c4 | 370 | { |
WiredHome | 123:2f45e80fec5f | 371 | TouchCode_t t = no_touch; |
WiredHome | 124:1690a7ae871c | 372 | |
WiredHome | 123:2f45e80fec5f | 373 | while (true) { |
WiredHome | 85:022bba13c5c4 | 374 | t = TouchPanelReadable(TouchPoint); |
WiredHome | 123:2f45e80fec5f | 375 | if (t != no_touch) |
WiredHome | 123:2f45e80fec5f | 376 | break; |
WiredHome | 123:2f45e80fec5f | 377 | if (idle_callback) { |
WiredHome | 149:c62c4b2d6a15 | 378 | if (external_abort == (*idle_callback)(touch_wait, 0)) { |
WiredHome | 123:2f45e80fec5f | 379 | return no_touch; |
WiredHome | 123:2f45e80fec5f | 380 | } |
WiredHome | 123:2f45e80fec5f | 381 | } |
WiredHome | 123:2f45e80fec5f | 382 | } |
WiredHome | 85:022bba13c5c4 | 383 | return t; |
WiredHome | 85:022bba13c5c4 | 384 | } |
WiredHome | 85:022bba13c5c4 | 385 | |
WiredHome | 123:2f45e80fec5f | 386 | // Below here are primarily "helper" functions. While many are accessible |
WiredHome | 123:2f45e80fec5f | 387 | // to the user code, they usually don't need to be called. |
WiredHome | 123:2f45e80fec5f | 388 | |
WiredHome | 81:01da2e34283d | 389 | RetCode_t RA8875::TouchPanelSetMatrix(tpMatrix_t * matrixPtr) |
WiredHome | 81:01da2e34283d | 390 | { |
WiredHome | 81:01da2e34283d | 391 | if (matrixPtr == NULL || matrixPtr->Divider == 0) |
WiredHome | 81:01da2e34283d | 392 | return bad_parameter; |
WiredHome | 81:01da2e34283d | 393 | memcpy(&tpMatrix, matrixPtr, sizeof(tpMatrix_t)); |
WiredHome | 83:7bad0068cca0 | 394 | touchState = no_touch; |
WiredHome | 81:01da2e34283d | 395 | return noerror; |
WiredHome | 81:01da2e34283d | 396 | } |
WiredHome | 81:01da2e34283d | 397 | |
WiredHome | 157:1565f38ca44b | 398 | const tpMatrix_t * RA8875::TouchPanelGetMatrix() |
WiredHome | 157:1565f38ca44b | 399 | { |
WiredHome | 157:1565f38ca44b | 400 | return &tpMatrix; |
WiredHome | 157:1565f38ca44b | 401 | } |
WiredHome | 157:1565f38ca44b | 402 | |
WiredHome | 157:1565f38ca44b | 403 | |
WiredHome | 83:7bad0068cca0 | 404 | static void InsertionSort(int * buf, int bufsize) |
WiredHome | 83:7bad0068cca0 | 405 | { |
WiredHome | 83:7bad0068cca0 | 406 | int i, j; |
WiredHome | 83:7bad0068cca0 | 407 | int temp; |
WiredHome | 124:1690a7ae871c | 408 | |
WiredHome | 108:7415c405ee08 | 409 | for(i = 1; i < bufsize; i++) { |
WiredHome | 83:7bad0068cca0 | 410 | temp = buf[i]; |
WiredHome | 83:7bad0068cca0 | 411 | j = i; |
WiredHome | 83:7bad0068cca0 | 412 | while( j && (buf[j-1] > temp) ) { |
WiredHome | 83:7bad0068cca0 | 413 | buf[j] = buf[j-1]; |
WiredHome | 83:7bad0068cca0 | 414 | j = j-1; |
WiredHome | 83:7bad0068cca0 | 415 | } |
WiredHome | 83:7bad0068cca0 | 416 | buf[j] = temp; |
WiredHome | 83:7bad0068cca0 | 417 | } // End of sort |
WiredHome | 83:7bad0068cca0 | 418 | } |
WiredHome | 83:7bad0068cca0 | 419 | |
WiredHome | 83:7bad0068cca0 | 420 | |
WiredHome | 83:7bad0068cca0 | 421 | void RA8875::_TouchTicker(void) |
WiredHome | 78:faf49c381591 | 422 | { |
WiredHome | 155:b3f225ae572c | 423 | INFO("_TouchTicker()"); |
WiredHome | 165:695c24cc5197 | 424 | if (timeSinceTouch.read_us() > NOTOUCH_TIMEOUT_uS) { |
WiredHome | 83:7bad0068cca0 | 425 | touchSample = 0; |
WiredHome | 83:7bad0068cca0 | 426 | if (touchState == held) |
WiredHome | 83:7bad0068cca0 | 427 | touchState = release; |
WiredHome | 83:7bad0068cca0 | 428 | else |
WiredHome | 83:7bad0068cca0 | 429 | touchState = no_touch; |
WiredHome | 165:695c24cc5197 | 430 | timeSinceTouch.reset(); |
WiredHome | 83:7bad0068cca0 | 431 | } |
WiredHome | 83:7bad0068cca0 | 432 | } |
WiredHome | 83:7bad0068cca0 | 433 | |
WiredHome | 83:7bad0068cca0 | 434 | TouchCode_t RA8875::TouchPanelA2DRaw(int *x, int *y) |
WiredHome | 83:7bad0068cca0 | 435 | { |
WiredHome | 154:ad2450fc3dc3 | 436 | INFO("A2Raw"); |
WiredHome | 83:7bad0068cca0 | 437 | if( (ReadCommand(INTC2) & RA8875_INT_TP) ) { // Test for TP Interrupt pending in register INTC2 |
WiredHome | 154:ad2450fc3dc3 | 438 | INFO("Int pending"); |
WiredHome | 165:695c24cc5197 | 439 | timeSinceTouch.reset(); |
WiredHome | 83:7bad0068cca0 | 440 | *y = ReadCommand(TPYH) << 2 | ( (ReadCommand(TPXYL) & 0xC) >> 2 ); // D[9:2] from reg TPYH, D[1:0] from reg TPXYL[3:2] |
WiredHome | 83:7bad0068cca0 | 441 | *x = ReadCommand(TPXH) << 2 | ( (ReadCommand(TPXYL) & 0x3) ); // D[9:2] from reg TPXH, D[1:0] from reg TPXYL[1:0] |
WiredHome | 154:ad2450fc3dc3 | 442 | INFO("(x,y) = (%d,%d)", x, y); |
WiredHome | 83:7bad0068cca0 | 443 | WriteCommand(INTC2, RA8875_INT_TP); // reg INTC2: Clear that TP interrupt flag |
WiredHome | 83:7bad0068cca0 | 444 | touchState = touch; |
WiredHome | 83:7bad0068cca0 | 445 | } else { |
WiredHome | 154:ad2450fc3dc3 | 446 | INFO("no touch"); |
WiredHome | 83:7bad0068cca0 | 447 | touchState = no_touch; |
WiredHome | 83:7bad0068cca0 | 448 | } |
WiredHome | 83:7bad0068cca0 | 449 | return touchState; |
WiredHome | 83:7bad0068cca0 | 450 | } |
WiredHome | 83:7bad0068cca0 | 451 | |
WiredHome | 83:7bad0068cca0 | 452 | TouchCode_t RA8875::TouchPanelA2DFiltered(int *x, int *y) |
WiredHome | 83:7bad0068cca0 | 453 | { |
WiredHome | 83:7bad0068cca0 | 454 | static int xbuf[TPBUFSIZE], ybuf[TPBUFSIZE]; |
WiredHome | 83:7bad0068cca0 | 455 | static int lastX, lastY; |
WiredHome | 83:7bad0068cca0 | 456 | int i, j; |
WiredHome | 83:7bad0068cca0 | 457 | TouchCode_t ret = touchState; |
WiredHome | 78:faf49c381591 | 458 | |
WiredHome | 78:faf49c381591 | 459 | if( (ReadCommand(INTC2) & RA8875_INT_TP) ) { // Test for TP Interrupt pending in register INTC2 |
WiredHome | 165:695c24cc5197 | 460 | timeSinceTouch.reset(); |
WiredHome | 78:faf49c381591 | 461 | // Get the next data samples |
WiredHome | 83:7bad0068cca0 | 462 | ybuf[touchSample] = ReadCommand(TPYH) << 2 | ( (ReadCommand(TPXYL) & 0xC) >> 2 ); // D[9:2] from reg TPYH, D[1:0] from reg TPXYL[3:2] |
WiredHome | 83:7bad0068cca0 | 463 | xbuf[touchSample] = ReadCommand(TPXH) << 2 | ( (ReadCommand(TPXYL) & 0x3) ); // D[9:2] from reg TPXH, D[1:0] from reg TPXYL[1:0] |
WiredHome | 78:faf49c381591 | 464 | // Check for a complete set |
WiredHome | 83:7bad0068cca0 | 465 | if(++touchSample == TPBUFSIZE) { |
WiredHome | 78:faf49c381591 | 466 | // Buffers are full, so process them using Finn's method described in Analog Dialogue No. 44, Feb 2010 |
WiredHome | 78:faf49c381591 | 467 | // This requires sorting the samples in order of size, then discarding the top 25% and |
WiredHome | 78:faf49c381591 | 468 | // bottom 25% as noise spikes. Finally, the middle 50% of the values are averaged to |
WiredHome | 78:faf49c381591 | 469 | // reduce Gaussian noise. |
WiredHome | 83:7bad0068cca0 | 470 | #if 1 |
WiredHome | 83:7bad0068cca0 | 471 | InsertionSort(ybuf, TPBUFSIZE); |
WiredHome | 83:7bad0068cca0 | 472 | InsertionSort(xbuf, TPBUFSIZE); |
WiredHome | 83:7bad0068cca0 | 473 | #else |
WiredHome | 78:faf49c381591 | 474 | // Sort the Y buffer using an Insertion Sort |
WiredHome | 78:faf49c381591 | 475 | for(i = 1; i <= TPBUFSIZE; i++) { |
WiredHome | 78:faf49c381591 | 476 | temp = ybuf[i]; |
WiredHome | 78:faf49c381591 | 477 | j = i; |
WiredHome | 78:faf49c381591 | 478 | while( j && (ybuf[j-1] > temp) ) { |
WiredHome | 78:faf49c381591 | 479 | ybuf[j] = ybuf[j-1]; |
WiredHome | 78:faf49c381591 | 480 | j = j-1; |
WiredHome | 78:faf49c381591 | 481 | } |
WiredHome | 78:faf49c381591 | 482 | ybuf[j] = temp; |
WiredHome | 78:faf49c381591 | 483 | } // End of Y sort |
WiredHome | 78:faf49c381591 | 484 | // Sort the X buffer the same way |
WiredHome | 78:faf49c381591 | 485 | for(i = 1; i <= TPBUFSIZE; i++) { |
WiredHome | 78:faf49c381591 | 486 | temp = xbuf[i]; |
WiredHome | 78:faf49c381591 | 487 | j = i; |
WiredHome | 78:faf49c381591 | 488 | while( j && (xbuf[j-1] > temp) ) { |
WiredHome | 78:faf49c381591 | 489 | xbuf[j] = xbuf[j-1]; |
WiredHome | 78:faf49c381591 | 490 | j = j-1; |
WiredHome | 78:faf49c381591 | 491 | } |
WiredHome | 78:faf49c381591 | 492 | xbuf[j] = temp; |
WiredHome | 78:faf49c381591 | 493 | } // End of X sort |
WiredHome | 83:7bad0068cca0 | 494 | #endif |
WiredHome | 78:faf49c381591 | 495 | // Average the middle half of the Y values and report them |
WiredHome | 78:faf49c381591 | 496 | j = 0; |
WiredHome | 78:faf49c381591 | 497 | for(i = (TPBUFSIZE/4) - 1; i < TPBUFSIZE - TPBUFSIZE/4; i++ ) { |
WiredHome | 78:faf49c381591 | 498 | j += ybuf[i]; |
WiredHome | 78:faf49c381591 | 499 | } |
WiredHome | 83:7bad0068cca0 | 500 | *y = lastY = j * (float)2/TPBUFSIZE; // This is the average |
WiredHome | 78:faf49c381591 | 501 | // Average the middle half of the X values and report them |
WiredHome | 78:faf49c381591 | 502 | j = 0; |
WiredHome | 78:faf49c381591 | 503 | for(i = (TPBUFSIZE/4) - 1; i < TPBUFSIZE - TPBUFSIZE/4; i++ ) { |
WiredHome | 78:faf49c381591 | 504 | j += xbuf[i]; |
WiredHome | 78:faf49c381591 | 505 | } |
WiredHome | 83:7bad0068cca0 | 506 | *x = lastX = j * (float)2/TPBUFSIZE; // This is the average |
WiredHome | 78:faf49c381591 | 507 | // Tidy up and return |
WiredHome | 83:7bad0068cca0 | 508 | if (touchState == touch || touchState == held) |
WiredHome | 83:7bad0068cca0 | 509 | touchState = held; |
WiredHome | 83:7bad0068cca0 | 510 | else |
WiredHome | 83:7bad0068cca0 | 511 | touchState = touch; |
WiredHome | 83:7bad0068cca0 | 512 | ret = touchState; |
WiredHome | 83:7bad0068cca0 | 513 | touchSample = 0; // Ready to start on the next set of data samples |
WiredHome | 78:faf49c381591 | 514 | } else { |
WiredHome | 78:faf49c381591 | 515 | // Buffer not yet full, so do not return any results yet |
WiredHome | 83:7bad0068cca0 | 516 | if (touchState == touch || touchState == held) { |
WiredHome | 83:7bad0068cca0 | 517 | *x = lastX; |
WiredHome | 83:7bad0068cca0 | 518 | *y = lastY; |
WiredHome | 83:7bad0068cca0 | 519 | ret = touchState = held; |
WiredHome | 83:7bad0068cca0 | 520 | } |
WiredHome | 78:faf49c381591 | 521 | } |
WiredHome | 78:faf49c381591 | 522 | WriteCommand(INTC2, RA8875_INT_TP); // reg INTC2: Clear that TP interrupt flag |
WiredHome | 78:faf49c381591 | 523 | } // End of initial if -- data has been read and processed |
WiredHome | 83:7bad0068cca0 | 524 | else { |
WiredHome | 83:7bad0068cca0 | 525 | if (touchState == touch || touchState == held) { |
WiredHome | 83:7bad0068cca0 | 526 | *x = lastX; |
WiredHome | 83:7bad0068cca0 | 527 | *y = lastY; |
WiredHome | 83:7bad0068cca0 | 528 | ret = touchState = held; |
WiredHome | 83:7bad0068cca0 | 529 | } else if (touchState == release) { |
WiredHome | 83:7bad0068cca0 | 530 | *x = lastX; |
WiredHome | 83:7bad0068cca0 | 531 | *y = lastY; |
WiredHome | 83:7bad0068cca0 | 532 | ret = release; |
WiredHome | 83:7bad0068cca0 | 533 | touchState = no_touch; |
WiredHome | 83:7bad0068cca0 | 534 | } |
WiredHome | 83:7bad0068cca0 | 535 | } |
WiredHome | 83:7bad0068cca0 | 536 | return ret; |
WiredHome | 78:faf49c381591 | 537 | } |
WiredHome | 78:faf49c381591 | 538 | |
WiredHome | 167:8aa3fb2a5a31 | 539 | /// The following section is derived from Carlos E. Vidales. |
WiredHome | 167:8aa3fb2a5a31 | 540 | /// |
WiredHome | 167:8aa3fb2a5a31 | 541 | /// @copyright © 2001, Carlos E. Vidales. All rights reserved. |
WiredHome | 167:8aa3fb2a5a31 | 542 | /// |
WiredHome | 167:8aa3fb2a5a31 | 543 | /// This sample program was written and put in the public domain |
WiredHome | 167:8aa3fb2a5a31 | 544 | /// by Carlos E. Vidales. The program is provided "as is" |
WiredHome | 167:8aa3fb2a5a31 | 545 | /// without warranty of any kind, either expressed or implied. |
WiredHome | 167:8aa3fb2a5a31 | 546 | /// If you choose to use the program within your own products |
WiredHome | 167:8aa3fb2a5a31 | 547 | /// you do so at your own risk, and assume the responsibility |
WiredHome | 167:8aa3fb2a5a31 | 548 | /// for servicing, repairing or correcting the program should |
WiredHome | 167:8aa3fb2a5a31 | 549 | /// it prove defective in any manner. |
WiredHome | 167:8aa3fb2a5a31 | 550 | /// You may copy and distribute the program's source code in any |
WiredHome | 167:8aa3fb2a5a31 | 551 | /// medium, provided that you also include in each copy an |
WiredHome | 167:8aa3fb2a5a31 | 552 | /// appropriate copyright notice and disclaimer of warranty. |
WiredHome | 167:8aa3fb2a5a31 | 553 | /// You may also modify this program and distribute copies of |
WiredHome | 167:8aa3fb2a5a31 | 554 | /// it provided that you include prominent notices stating |
WiredHome | 167:8aa3fb2a5a31 | 555 | /// that you changed the file(s) and the date of any change, |
WiredHome | 167:8aa3fb2a5a31 | 556 | /// and that you do not charge any royalties or licenses for |
WiredHome | 167:8aa3fb2a5a31 | 557 | /// its use. |
WiredHome | 167:8aa3fb2a5a31 | 558 | /// |
WiredHome | 167:8aa3fb2a5a31 | 559 | /// This file contains functions that implement calculations |
WiredHome | 167:8aa3fb2a5a31 | 560 | /// necessary to obtain calibration factors for a touch screen |
WiredHome | 167:8aa3fb2a5a31 | 561 | /// that suffers from multiple distortion effects: namely, |
WiredHome | 167:8aa3fb2a5a31 | 562 | /// translation, scaling and rotation. |
WiredHome | 167:8aa3fb2a5a31 | 563 | /// |
WiredHome | 167:8aa3fb2a5a31 | 564 | /// The following set of equations represent a valid display |
WiredHome | 167:8aa3fb2a5a31 | 565 | /// point given a corresponding set of touch screen points: |
WiredHome | 167:8aa3fb2a5a31 | 566 | /// |
WiredHome | 167:8aa3fb2a5a31 | 567 | /// <pre> |
WiredHome | 167:8aa3fb2a5a31 | 568 | /// /- -\ |
WiredHome | 167:8aa3fb2a5a31 | 569 | /// /- -\ /- -\ | | |
WiredHome | 167:8aa3fb2a5a31 | 570 | /// | | | | | Xs | |
WiredHome | 167:8aa3fb2a5a31 | 571 | /// | Xd | | A B C | | | |
WiredHome | 167:8aa3fb2a5a31 | 572 | /// | | = | | * | Ys | |
WiredHome | 167:8aa3fb2a5a31 | 573 | /// | Yd | | D E F | | | |
WiredHome | 167:8aa3fb2a5a31 | 574 | /// | | | | | 1 | |
WiredHome | 167:8aa3fb2a5a31 | 575 | /// \- -/ \- -/ | | |
WiredHome | 167:8aa3fb2a5a31 | 576 | /// \- -/ |
WiredHome | 167:8aa3fb2a5a31 | 577 | /// where: |
WiredHome | 167:8aa3fb2a5a31 | 578 | /// (Xd,Yd) represents the desired display point |
WiredHome | 167:8aa3fb2a5a31 | 579 | /// coordinates, |
WiredHome | 167:8aa3fb2a5a31 | 580 | /// (Xs,Ys) represents the available touch screen |
WiredHome | 167:8aa3fb2a5a31 | 581 | /// coordinates, and the matrix |
WiredHome | 167:8aa3fb2a5a31 | 582 | /// /- -\ |
WiredHome | 167:8aa3fb2a5a31 | 583 | /// |A,B,C| |
WiredHome | 167:8aa3fb2a5a31 | 584 | /// |D,E,F| represents the factors used to translate |
WiredHome | 167:8aa3fb2a5a31 | 585 | /// \- -/ the available touch screen point values |
WiredHome | 167:8aa3fb2a5a31 | 586 | /// into the corresponding display |
WiredHome | 167:8aa3fb2a5a31 | 587 | /// coordinates. |
WiredHome | 167:8aa3fb2a5a31 | 588 | /// Note that for practical considerations, the utilities |
WiredHome | 167:8aa3fb2a5a31 | 589 | /// within this file do not use the matrix coefficients as |
WiredHome | 167:8aa3fb2a5a31 | 590 | /// defined above, but instead use the following |
WiredHome | 167:8aa3fb2a5a31 | 591 | /// equivalents, since floating point math is not used: |
WiredHome | 167:8aa3fb2a5a31 | 592 | /// A = An/Divider |
WiredHome | 167:8aa3fb2a5a31 | 593 | /// B = Bn/Divider |
WiredHome | 167:8aa3fb2a5a31 | 594 | /// C = Cn/Divider |
WiredHome | 167:8aa3fb2a5a31 | 595 | /// D = Dn/Divider |
WiredHome | 167:8aa3fb2a5a31 | 596 | /// E = En/Divider |
WiredHome | 167:8aa3fb2a5a31 | 597 | /// F = Fn/Divider |
WiredHome | 167:8aa3fb2a5a31 | 598 | /// The functions provided within this file are: |
WiredHome | 167:8aa3fb2a5a31 | 599 | /// setCalibrationMatrix() - calculates the set of factors |
WiredHome | 167:8aa3fb2a5a31 | 600 | /// in the above equation, given |
WiredHome | 167:8aa3fb2a5a31 | 601 | /// three sets of test points. |
WiredHome | 167:8aa3fb2a5a31 | 602 | /// getDisplayPoint() - returns the actual display |
WiredHome | 167:8aa3fb2a5a31 | 603 | /// coordinates, given a set of |
WiredHome | 167:8aa3fb2a5a31 | 604 | /// touch screen coordinates. |
WiredHome | 167:8aa3fb2a5a31 | 605 | /// translateRawScreenCoordinates() - helper function to transform |
WiredHome | 167:8aa3fb2a5a31 | 606 | /// raw screen points into values |
WiredHome | 167:8aa3fb2a5a31 | 607 | /// scaled to the desired display |
WiredHome | 167:8aa3fb2a5a31 | 608 | /// resolution. |
WiredHome | 167:8aa3fb2a5a31 | 609 | /// |
WiredHome | 167:8aa3fb2a5a31 | 610 | /// |
WiredHome | 167:8aa3fb2a5a31 | 611 | /// Function: setCalibrationMatrix() |
WiredHome | 167:8aa3fb2a5a31 | 612 | /// |
WiredHome | 167:8aa3fb2a5a31 | 613 | /// Description: Calling this function with valid input data |
WiredHome | 167:8aa3fb2a5a31 | 614 | /// in the display and screen input arguments |
WiredHome | 167:8aa3fb2a5a31 | 615 | /// causes the calibration factors between the |
WiredHome | 167:8aa3fb2a5a31 | 616 | /// screen and display points to be calculated, |
WiredHome | 167:8aa3fb2a5a31 | 617 | /// and the output argument - matrixPtr - to be |
WiredHome | 167:8aa3fb2a5a31 | 618 | /// populated. |
WiredHome | 167:8aa3fb2a5a31 | 619 | /// |
WiredHome | 167:8aa3fb2a5a31 | 620 | /// This function needs to be called only when new |
WiredHome | 167:8aa3fb2a5a31 | 621 | /// calibration factors are desired. |
WiredHome | 167:8aa3fb2a5a31 | 622 | /// |
WiredHome | 167:8aa3fb2a5a31 | 623 | /// |
WiredHome | 167:8aa3fb2a5a31 | 624 | /// Argument(s): displayPtr (input) - Pointer to an array of three |
WiredHome | 167:8aa3fb2a5a31 | 625 | /// sample, reference points. |
WiredHome | 167:8aa3fb2a5a31 | 626 | /// screenPtr (input) - Pointer to the array of touch |
WiredHome | 167:8aa3fb2a5a31 | 627 | /// screen points corresponding |
WiredHome | 167:8aa3fb2a5a31 | 628 | /// to the reference display points. |
WiredHome | 167:8aa3fb2a5a31 | 629 | /// matrixPtr (output) - Pointer to the calibration |
WiredHome | 167:8aa3fb2a5a31 | 630 | /// matrix computed for the set |
WiredHome | 167:8aa3fb2a5a31 | 631 | /// of points being provided. |
WiredHome | 167:8aa3fb2a5a31 | 632 | /// |
WiredHome | 167:8aa3fb2a5a31 | 633 | /// |
WiredHome | 167:8aa3fb2a5a31 | 634 | /// From the article text, recall that the matrix coefficients are |
WiredHome | 167:8aa3fb2a5a31 | 635 | /// resolved to be the following: |
WiredHome | 167:8aa3fb2a5a31 | 636 | /// |
WiredHome | 167:8aa3fb2a5a31 | 637 | /// |
WiredHome | 167:8aa3fb2a5a31 | 638 | /// Divider = (Xs0 - Xs2)*(Ys1 - Ys2) - (Xs1 - Xs2)*(Ys0 - Ys2) |
WiredHome | 167:8aa3fb2a5a31 | 639 | /// |
WiredHome | 167:8aa3fb2a5a31 | 640 | /// |
WiredHome | 167:8aa3fb2a5a31 | 641 | /// |
WiredHome | 167:8aa3fb2a5a31 | 642 | /// (Xd0 - Xd2)*(Ys1 - Ys2) - (Xd1 - Xd2)*(Ys0 - Ys2) |
WiredHome | 167:8aa3fb2a5a31 | 643 | /// A = --------------------------------------------------- |
WiredHome | 167:8aa3fb2a5a31 | 644 | /// Divider |
WiredHome | 167:8aa3fb2a5a31 | 645 | /// |
WiredHome | 167:8aa3fb2a5a31 | 646 | /// |
WiredHome | 167:8aa3fb2a5a31 | 647 | /// (Xs0 - Xs2)*(Xd1 - Xd2) - (Xd0 - Xd2)*(Xs1 - Xs2) |
WiredHome | 167:8aa3fb2a5a31 | 648 | /// B = --------------------------------------------------- |
WiredHome | 167:8aa3fb2a5a31 | 649 | /// Divider |
WiredHome | 167:8aa3fb2a5a31 | 650 | /// |
WiredHome | 167:8aa3fb2a5a31 | 651 | /// |
WiredHome | 167:8aa3fb2a5a31 | 652 | /// Ys0*(Xs2*Xd1 - Xs1*Xd2) + |
WiredHome | 167:8aa3fb2a5a31 | 653 | /// Ys1*(Xs0*Xd2 - Xs2*Xd0) + |
WiredHome | 167:8aa3fb2a5a31 | 654 | /// Ys2*(Xs1*Xd0 - Xs0*Xd1) |
WiredHome | 167:8aa3fb2a5a31 | 655 | /// C = --------------------------------------------------- |
WiredHome | 167:8aa3fb2a5a31 | 656 | /// Divider |
WiredHome | 167:8aa3fb2a5a31 | 657 | /// |
WiredHome | 167:8aa3fb2a5a31 | 658 | /// |
WiredHome | 167:8aa3fb2a5a31 | 659 | /// (Yd0 - Yd2)*(Ys1 - Ys2) - (Yd1 - Yd2)*(Ys0 - Ys2) |
WiredHome | 167:8aa3fb2a5a31 | 660 | /// D = --------------------------------------------------- |
WiredHome | 167:8aa3fb2a5a31 | 661 | /// Divider |
WiredHome | 167:8aa3fb2a5a31 | 662 | /// |
WiredHome | 167:8aa3fb2a5a31 | 663 | /// |
WiredHome | 167:8aa3fb2a5a31 | 664 | /// (Xs0 - Xs2)*(Yd1 - Yd2) - (Yd0 - Yd2)*(Xs1 - Xs2) |
WiredHome | 167:8aa3fb2a5a31 | 665 | /// E = --------------------------------------------------- |
WiredHome | 167:8aa3fb2a5a31 | 666 | /// Divider |
WiredHome | 167:8aa3fb2a5a31 | 667 | /// |
WiredHome | 167:8aa3fb2a5a31 | 668 | /// |
WiredHome | 167:8aa3fb2a5a31 | 669 | /// Ys0*(Xs2*Yd1 - Xs1*Yd2) + |
WiredHome | 167:8aa3fb2a5a31 | 670 | /// Ys1*(Xs0*Yd2 - Xs2*Yd0) + |
WiredHome | 167:8aa3fb2a5a31 | 671 | /// Ys2*(Xs1*Yd0 - Xs0*Yd1) |
WiredHome | 167:8aa3fb2a5a31 | 672 | /// F = --------------------------------------------------- |
WiredHome | 167:8aa3fb2a5a31 | 673 | /// Divider |
WiredHome | 167:8aa3fb2a5a31 | 674 | /// |
WiredHome | 167:8aa3fb2a5a31 | 675 | /// |
WiredHome | 167:8aa3fb2a5a31 | 676 | /// Return: OK - the calibration matrix was correctly |
WiredHome | 167:8aa3fb2a5a31 | 677 | /// calculated and its value is in the |
WiredHome | 167:8aa3fb2a5a31 | 678 | /// output argument. |
WiredHome | 167:8aa3fb2a5a31 | 679 | /// NOT_OK - an error was detected and the |
WiredHome | 167:8aa3fb2a5a31 | 680 | /// function failed to return a valid |
WiredHome | 167:8aa3fb2a5a31 | 681 | /// set of matrix values. |
WiredHome | 167:8aa3fb2a5a31 | 682 | /// The only time this sample code returns |
WiredHome | 167:8aa3fb2a5a31 | 683 | /// NOT_OK is when Divider == 0 |
WiredHome | 167:8aa3fb2a5a31 | 684 | /// |
WiredHome | 167:8aa3fb2a5a31 | 685 | /// |
WiredHome | 167:8aa3fb2a5a31 | 686 | /// |
WiredHome | 167:8aa3fb2a5a31 | 687 | /// NOTE! NOTE! NOTE! |
WiredHome | 167:8aa3fb2a5a31 | 688 | /// |
WiredHome | 167:8aa3fb2a5a31 | 689 | /// setCalibrationMatrix() and getDisplayPoint() will do fine |
WiredHome | 167:8aa3fb2a5a31 | 690 | /// for you as they are, provided that your digitizer |
WiredHome | 167:8aa3fb2a5a31 | 691 | /// resolution does not exceed 10 bits (1024 values). Higher |
WiredHome | 167:8aa3fb2a5a31 | 692 | /// resolutions may cause the integer operations to overflow |
WiredHome | 167:8aa3fb2a5a31 | 693 | /// and return incorrect values. If you wish to use these |
WiredHome | 167:8aa3fb2a5a31 | 694 | /// functions with digitizer resolutions of 12 bits (4096 |
WiredHome | 167:8aa3fb2a5a31 | 695 | /// values) you will either have to a) use 64-bit signed |
WiredHome | 167:8aa3fb2a5a31 | 696 | /// integer variables and math, or b) judiciously modify the |
WiredHome | 167:8aa3fb2a5a31 | 697 | /// operations to scale results by a factor of 2 or even 4. |
WiredHome | 167:8aa3fb2a5a31 | 698 | /// |
WiredHome | 167:8aa3fb2a5a31 | 699 | /// </pre> |
WiredHome | 167:8aa3fb2a5a31 | 700 | /// |
WiredHome | 81:01da2e34283d | 701 | RetCode_t RA8875::TouchPanelComputeCalibration(point_t * displayPtr, point_t * screenPtr, tpMatrix_t * matrixPtr) |
WiredHome | 78:faf49c381591 | 702 | { |
WiredHome | 78:faf49c381591 | 703 | RetCode_t retValue = noerror; |
WiredHome | 78:faf49c381591 | 704 | |
WiredHome | 78:faf49c381591 | 705 | tpMatrix.Divider = ((screenPtr[0].x - screenPtr[2].x) * (screenPtr[1].y - screenPtr[2].y)) - |
WiredHome | 78:faf49c381591 | 706 | ((screenPtr[1].x - screenPtr[2].x) * (screenPtr[0].y - screenPtr[2].y)) ; |
WiredHome | 78:faf49c381591 | 707 | |
WiredHome | 78:faf49c381591 | 708 | if( tpMatrix.Divider == 0 ) { |
WiredHome | 78:faf49c381591 | 709 | retValue = bad_parameter; |
WiredHome | 78:faf49c381591 | 710 | } else { |
WiredHome | 78:faf49c381591 | 711 | tpMatrix.An = ((displayPtr[0].x - displayPtr[2].x) * (screenPtr[1].y - screenPtr[2].y)) - |
WiredHome | 78:faf49c381591 | 712 | ((displayPtr[1].x - displayPtr[2].x) * (screenPtr[0].y - screenPtr[2].y)) ; |
WiredHome | 78:faf49c381591 | 713 | |
WiredHome | 78:faf49c381591 | 714 | tpMatrix.Bn = ((screenPtr[0].x - screenPtr[2].x) * (displayPtr[1].x - displayPtr[2].x)) - |
WiredHome | 78:faf49c381591 | 715 | ((displayPtr[0].x - displayPtr[2].x) * (screenPtr[1].x - screenPtr[2].x)) ; |
WiredHome | 78:faf49c381591 | 716 | |
WiredHome | 78:faf49c381591 | 717 | tpMatrix.Cn = (screenPtr[2].x * displayPtr[1].x - screenPtr[1].x * displayPtr[2].x) * screenPtr[0].y + |
WiredHome | 78:faf49c381591 | 718 | (screenPtr[0].x * displayPtr[2].x - screenPtr[2].x * displayPtr[0].x) * screenPtr[1].y + |
WiredHome | 78:faf49c381591 | 719 | (screenPtr[1].x * displayPtr[0].x - screenPtr[0].x * displayPtr[1].x) * screenPtr[2].y ; |
WiredHome | 78:faf49c381591 | 720 | |
WiredHome | 78:faf49c381591 | 721 | tpMatrix.Dn = ((displayPtr[0].y - displayPtr[2].y) * (screenPtr[1].y - screenPtr[2].y)) - |
WiredHome | 78:faf49c381591 | 722 | ((displayPtr[1].y - displayPtr[2].y) * (screenPtr[0].y - screenPtr[2].y)) ; |
WiredHome | 78:faf49c381591 | 723 | |
WiredHome | 78:faf49c381591 | 724 | tpMatrix.En = ((screenPtr[0].x - screenPtr[2].x) * (displayPtr[1].y - displayPtr[2].y)) - |
WiredHome | 78:faf49c381591 | 725 | ((displayPtr[0].y - displayPtr[2].y) * (screenPtr[1].x - screenPtr[2].x)) ; |
WiredHome | 78:faf49c381591 | 726 | |
WiredHome | 78:faf49c381591 | 727 | tpMatrix.Fn = (screenPtr[2].x * displayPtr[1].y - screenPtr[1].x * displayPtr[2].y) * screenPtr[0].y + |
WiredHome | 78:faf49c381591 | 728 | (screenPtr[0].x * displayPtr[2].y - screenPtr[2].x * displayPtr[0].y) * screenPtr[1].y + |
WiredHome | 78:faf49c381591 | 729 | (screenPtr[1].x * displayPtr[0].y - screenPtr[0].x * displayPtr[1].y) * screenPtr[2].y ; |
WiredHome | 83:7bad0068cca0 | 730 | touchState = no_touch; |
WiredHome | 78:faf49c381591 | 731 | if (matrixPtr) |
WiredHome | 78:faf49c381591 | 732 | memcpy(matrixPtr, &tpMatrix, sizeof(tpMatrix_t)); |
WiredHome | 78:faf49c381591 | 733 | } |
WiredHome | 78:faf49c381591 | 734 | return( retValue ) ; |
WiredHome | 78:faf49c381591 | 735 | } |
WiredHome | 78:faf49c381591 | 736 | |
WiredHome | 157:1565f38ca44b | 737 | void RA8875::ResTouchPanelCfg(const char * _tpFQFN, const char * _tpCalMessage) |
WiredHome | 157:1565f38ca44b | 738 | { |
WiredHome | 157:1565f38ca44b | 739 | tpFQFN = _tpFQFN; |
WiredHome | 157:1565f38ca44b | 740 | tpCalMessage = _tpCalMessage; |
WiredHome | 157:1565f38ca44b | 741 | } |
WiredHome | 157:1565f38ca44b | 742 | |
WiredHome | 157:1565f38ca44b | 743 | |
WiredHome | 157:1565f38ca44b | 744 | RetCode_t RA8875::_internal_ts_cal() |
WiredHome | 157:1565f38ca44b | 745 | { |
WiredHome | 157:1565f38ca44b | 746 | FILE * fh; |
WiredHome | 157:1565f38ca44b | 747 | tpMatrix_t matrix; |
WiredHome | 157:1565f38ca44b | 748 | RetCode_t r = noerror; |
WiredHome | 157:1565f38ca44b | 749 | |
WiredHome | 157:1565f38ca44b | 750 | if (tpFQFN) { |
WiredHome | 157:1565f38ca44b | 751 | fh = fopen(tpFQFN, "rb"); |
WiredHome | 157:1565f38ca44b | 752 | if (fh) { |
WiredHome | 157:1565f38ca44b | 753 | fread(&matrix, sizeof(tpMatrix_t), 1, fh); |
WiredHome | 157:1565f38ca44b | 754 | fclose(fh); |
WiredHome | 157:1565f38ca44b | 755 | TouchPanelSetMatrix(&matrix); |
WiredHome | 157:1565f38ca44b | 756 | } else { |
WiredHome | 157:1565f38ca44b | 757 | r = TouchPanelCalibrate(tpCalMessage, &matrix); |
WiredHome | 157:1565f38ca44b | 758 | if (r == noerror) { |
WiredHome | 157:1565f38ca44b | 759 | fh = fopen(tpFQFN, "wb"); |
WiredHome | 157:1565f38ca44b | 760 | if (fh) { |
WiredHome | 157:1565f38ca44b | 761 | fwrite(&matrix, sizeof(tpMatrix_t), 1, fh); |
WiredHome | 157:1565f38ca44b | 762 | fclose(fh); |
WiredHome | 157:1565f38ca44b | 763 | INFO(" tp cal written to '%s'.", tpFQFN); |
WiredHome | 157:1565f38ca44b | 764 | } else { |
WiredHome | 157:1565f38ca44b | 765 | ERR(" couldn't open tpcal file '%s'.", tpFQFN); |
WiredHome | 157:1565f38ca44b | 766 | r = file_not_found; |
WiredHome | 157:1565f38ca44b | 767 | } |
WiredHome | 157:1565f38ca44b | 768 | } else { |
WiredHome | 157:1565f38ca44b | 769 | ERR("error return: %d", r); |
WiredHome | 157:1565f38ca44b | 770 | } |
WiredHome | 157:1565f38ca44b | 771 | HexDump("TPCal", (const uint8_t *)&matrix, sizeof(tpMatrix_t)); |
WiredHome | 157:1565f38ca44b | 772 | cls(); |
WiredHome | 157:1565f38ca44b | 773 | } |
WiredHome | 157:1565f38ca44b | 774 | } |
WiredHome | 157:1565f38ca44b | 775 | return r; |
WiredHome | 157:1565f38ca44b | 776 | } |
WiredHome | 157:1565f38ca44b | 777 | |
WiredHome | 157:1565f38ca44b | 778 | |
WiredHome | 157:1565f38ca44b | 779 | |
WiredHome | 124:1690a7ae871c | 780 | ////////////////// Capacitive Touch Panel |
WiredHome | 124:1690a7ae871c | 781 | |
WiredHome | 165:695c24cc5197 | 782 | uint8_t RA8875::FT5206_ReadRegU8(uint8_t reg) { |
WiredHome | 124:1690a7ae871c | 783 | char val; |
WiredHome | 124:1690a7ae871c | 784 | |
WiredHome | 124:1690a7ae871c | 785 | m_i2c->write(m_addr, (const char *)®, 1); |
WiredHome | 124:1690a7ae871c | 786 | m_i2c->read(m_addr, &val, 1); |
WiredHome | 124:1690a7ae871c | 787 | return (uint8_t)val; |
WiredHome | 124:1690a7ae871c | 788 | } |
WiredHome | 124:1690a7ae871c | 789 | |
WiredHome | 124:1690a7ae871c | 790 | // Interrupt for touch detection |
WiredHome | 124:1690a7ae871c | 791 | void RA8875::TouchPanelISR(void) |
WiredHome | 124:1690a7ae871c | 792 | { |
WiredHome | 165:695c24cc5197 | 793 | if (useTouchPanel == TP_FT5206) { |
WiredHome | 165:695c24cc5197 | 794 | if (FT5206_TouchPositions()) |
WiredHome | 165:695c24cc5197 | 795 | panelTouched = true; |
WiredHome | 165:695c24cc5197 | 796 | } else if (useTouchPanel == TP_GSL1680) { |
WiredHome | 165:695c24cc5197 | 797 | if (GSL1680_TouchPositions()) |
WiredHome | 165:695c24cc5197 | 798 | panelTouched = true; |
WiredHome | 165:695c24cc5197 | 799 | } |
WiredHome | 124:1690a7ae871c | 800 | } |
WiredHome | 124:1690a7ae871c | 801 | |
WiredHome | 124:1690a7ae871c | 802 | |
WiredHome | 78:faf49c381591 | 803 | // #### end of touch panel code additions |