Touch remap working.

firmware/src/board_defs.h

@@ -24,7 +24,7 @@
 
 #define TOUCH_MAP { E3, A2, B2, D2, E2, A1, B1, D1, E1, C2, A8, B8, \
                     D8, E8, A7, B7, D7, E7, A6, B6, D6, E6, A5, B5, \
-                    D5, E5, C1, A4, B4, D4, E4, A3, B3, D3 }
+                    D5, E5, C1, A4, B4, D4, E4, A3, B3, D3, XX, XX }
 #else
 
 #endif

firmware/src/commands.c

@@ -9,6 +9,7 @@
 
 #include "tusb.h"
 
+#include "mpr121.h"
 #include "touch.h"
 #include "button.h"
 #include "config.h"
@@ -16,6 +17,7 @@
 #include "cli.h"
 
 #include "aime.h"
+#include "nfc.h"
 
 #define SENSE_LIMIT_MAX 9
 #define SENSE_LIMIT_MIN -9
@@ -66,6 +68,7 @@ static void disp_hid()
 static void disp_aime()
 {
     printf("[AIME]\n");
+    printf("    NFC Module: %s\n", nfc_module_name());
     printf("    Virtual AIC: %s\n", mai_cfg->aime.virtual_aic ? "ON" : "OFF");
 }
 
@@ -81,6 +84,21 @@ static void disp_gpio()
         button_real_gpio(10), button_real_gpio(11));
 }
 
+static void disp_touch()
+{
+    printf("[Touch]\n");
+    printf("     ADDR|_0|_1|_2|_3|_4|_5|_6|_7|_8|_9|10|11|\n");
+
+    for (int m = 0; m < 3; m++) {
+        printf("  %d: 0x%02x|", m, MPR121_BASE_ADDR + m);
+        for (int chn = 0; chn < 12; chn++) {
+            int key = touch_key_from_channel(m * 12 + chn);
+            printf("%2s|", touch_key_name(key));
+        }
+        printf("\n");
+    }
+}
+
 void handle_display(int argc, char *argv[])
 {
     const char *usage = "Usage: display [rgb|sense|hid|gpio|aime]\n";
@@ -94,12 +112,13 @@ void handle_display(int argc, char *argv[])
         disp_sense();
         disp_hid();
         disp_gpio();
+        disp_touch();
         disp_aime();
         return;
     }
 
-    const char *choices[] = {"rgb", "sense", "hid", "gpio", "aime"};
-    switch (cli_match_prefix(choices, 5, argv[0])) {
+    const char *choices[] = {"rgb", "sense", "hid", "gpio", "touch", "aime"};
+    switch (cli_match_prefix(choices, 6, argv[0])) {
         case 0:
             disp_rgb();
             break;
@@ -113,6 +132,9 @@ void handle_display(int argc, char *argv[])
             disp_gpio();
             break;
         case 4:
+            disp_touch();
+            break;
+        case 5:
             disp_aime();
             break;
         default:
@@ -456,6 +478,62 @@ static void handle_gpio(int argc, char *argv[])
     disp_gpio();
 }
 
+static void detect_touch()
+{
+    bool touched = false;
+    for (int i = 0; i < 34; i++) {
+        if (touch_touched(i)) {
+            touched = true;
+            printf("Touched: %s", touch_key_name(i));
+            uint8_t pad = touch_key_channel(i);
+            if (pad >= 0) {
+                printf(" (Sensor %d, Electrode %d)\n", pad / 12, pad % 12 + 1);
+            } else {
+                printf(" (nil)\n");
+            }
+        }
+    }
+    if (!touched) {
+        printf("No touch detected.\n");
+    }
+}
+
+static bool set_touch_map(int argc, char *argv[])
+{
+    if (argc != 3) {
+        return false;
+    }
+    if (strlen(argv[2]) != 2) {
+        return false;
+    }
+    int sensor = cli_extract_non_neg_int(argv[0], 0);
+    int channel = cli_extract_non_neg_int(argv[1], 0);
+    int key = touch_key_by_name(argv[2]);
+
+    if ((sensor < 0) || (sensor > 2) ||
+        (channel < 0) || (channel > 11) ||
+        (key < 0)) {
+        return false;
+    }
+    touch_set_map(sensor * 12 + channel, key);
+    return true;
+}
+
+static void handle_touch(int argc, char *argv[])
+{
+    const char *usage = "Usage: touch [<sensor> <channel> <key>]\n"
+                        "  sensor: 0..2\n"
+                        " channel: 0..11\n"
+                        "     key: A1, C2, E5, etc. XX means Not Connected.)\n";
+    if (argc == 0) {
+        detect_touch();
+    } else if (set_touch_map(argc, argv)) {
+        disp_touch();
+    } else {
+        printf(usage);
+    }
+}
+
 static void handle_virtual(int argc, char *argv[])
 {
     const char *usage = "Usage: virtual <on|off>\n";
@@ -491,6 +569,7 @@ void commands_init()
     cli_register("whoami", handle_whoami, "Identify each com port.");
     cli_register("save", handle_save, "Save config to flash.");
     cli_register("gpio", handle_gpio, "Set GPIO pins for buttons.");
+    cli_register("touch", handle_touch, "Custimze touch mapping.");
     cli_register("factory", config_factory_reset, "Reset everything to default.");
     cli_register("virtual", handle_virtual, "Virtual AIC card on AIME.");
 }

firmware/src/config.h

@@ -34,7 +34,7 @@ typedef struct __attribute__((packed)) {
     } rgb;
     struct {
         uint8_t buttons[12];
-        uint8_t touch[34];
+        uint8_t touch[36];
     } alt;
     struct {
         bool virtual_aic;

firmware/src/touch.c

@@ -9,6 +9,7 @@
 
 #include <stdint.h>
 #include <stdlib.h>
+#include <ctype.h>
 #include <stdbool.h>
 
 #include "bsp/board.h"
@@ -40,21 +41,69 @@ void touch_init()
     memcpy(touch_map, mai_cfg->alt.touch, sizeof(touch_map));
 }
 
-const char *touch_pad_name(unsigned i)
+const char *touch_key_name(unsigned key)
 {
     static char name[3] = { 0 };
-    if (i < 18) {
-        name[0] = "ABC"[i / 8];
-        name[1] = '1' + i % 8;
-    } else if (i < 34) {
-        name[0] = "DE"[(i - 18) / 8];
-        name[1] = '1' + (i - 18) % 8;
+    if (key < 18) {
+        name[0] = "ABC"[key / 8];
+        name[1] = '1' + key % 8;
+    } else if (key < 34) {
+        name[0] = "DE"[(key - 18) / 8];
+        name[1] = '1' + (key - 18) % 8;
     } else {
         return "XX";
     }
     return name;
 }
 
+int touch_key_by_name(const char *name)
+{
+    if (strlen(name) != 2) {
+        return -1;
+    }
+    if (strcasecmp(name, "XX") == 0) {
+        return 255;
+    }
+
+    int zone = toupper(name[0]) - 'A';
+    int id = name[1] - '1';
+    if ((zone < 0) || (zone > 4) || (id < 0) || (id > 7)) {
+        return -1;
+    }
+    if ((zone == 2) && (id > 1)) {
+        return -1; // C1 and C2 only
+    }
+    const int offsets[] = { 0, 8, 16, 18, 26 };
+    return offsets[zone] + id;
+}
+
+int touch_key_channel(unsigned key)
+{
+    for (int i = 0; i < 36; i++) {
+        if (touch_map[i] == key) {
+            return i;
+        }
+    }
+    return -1;
+}
+
+unsigned touch_key_from_channel(unsigned channel)
+{
+    if (channel < 36) {
+        return touch_map[channel];
+    }
+    return 0xff;
+}
+
+void touch_set_map(unsigned sensor, unsigned key)
+{
+    if (sensor < 36) {
+        touch_map[sensor] = key;
+        memcpy(mai_cfg->alt.touch, touch_map, sizeof(mai_cfg->alt.touch));
+        config_changed();
+    }
+}
+
 static uint64_t touch_reading;
 
 static void remap_reading()

firmware/src/touch.h

@@ -9,7 +9,7 @@
 #include <stdint.h>
 #include <stdbool.h>
 
-enum touch_pads {
+enum touch_keys {
     A1 = 0, A2, A3, A4, A5, A6, A7, A8,
     B1, B2, B3, B4, B5, B6, B7, B8,
     C1, C2, D1, D2, D3, D4, D5, D6, D7, D8,
@@ -17,12 +17,16 @@ enum touch_pads {
     XX = 255
 };
 
-const char *touch_pad_name(unsigned i);
+const char *touch_key_name(unsigned key);
+int touch_key_by_name(const char *name);
+int touch_key_channel(unsigned key);
+unsigned touch_key_from_channel(unsigned channel);
 
 void touch_init();
 void touch_update();
 bool touch_touched(unsigned key);
 uint64_t touch_touchmap();
+void touch_set_map(unsigned sensor, unsigned key);
 
 const uint16_t *touch_raw();
 bool touch_sensor_ok(unsigned i);