qmk_firmware

QMK firmware for my keyboards (Corne, Sweep Ferris) and trackball (Ploopy Adept)
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connection.c (3451B)

      1 // Copyright 2025 QMK
      2 // SPDX-License-Identifier: GPL-2.0-or-later
      3 #include "connection.h"
      4 #include "eeconfig.h"
      5 #include "usb_util.h"
      6 #include "util.h"
      7 
      8 #ifdef BLUETOOTH_ENABLE
      9 #    include "bluetooth.h"
     10 #endif
     11 
     12 // ======== DEPRECATED DEFINES - DO NOT USE ========
     13 #ifdef OUTPUT_DEFAULT
     14 #    undef CONNECTION_HOST_DEFAULT
     15 #    define CONNECTION_HOST_DEFAULT OUTPUT_DEFAULT
     16 #endif
     17 
     18 __attribute__((weak)) void set_output_user(uint8_t output) {}
     19 // ========
     20 
     21 #define CONNECTION_HOST_INVALID 0xFF
     22 
     23 #ifndef CONNECTION_HOST_DEFAULT
     24 #    define CONNECTION_HOST_DEFAULT CONNECTION_HOST_AUTO
     25 #endif
     26 
     27 static const connection_host_t host_candidates[] = {
     28     CONNECTION_HOST_AUTO,
     29     CONNECTION_HOST_USB,
     30 #ifdef BLUETOOTH_ENABLE
     31     CONNECTION_HOST_BLUETOOTH,
     32 #endif
     33 #if 0
     34     CONNECTION_HOST_2P4GHZ,
     35 #endif
     36 };
     37 
     38 #define HOST_CANDIDATES_COUNT ARRAY_SIZE(host_candidates)
     39 
     40 static connection_config_t config = {.desired_host = CONNECTION_HOST_INVALID};
     41 
     42 void eeconfig_update_connection_default(void) {
     43     config.desired_host = CONNECTION_HOST_DEFAULT;
     44 
     45     eeconfig_update_connection(&config);
     46 }
     47 
     48 void connection_init(void) {
     49     eeconfig_read_connection(&config);
     50     if (config.desired_host == CONNECTION_HOST_INVALID) {
     51         eeconfig_update_connection_default();
     52     }
     53 }
     54 
     55 __attribute__((weak)) void connection_host_changed_user(connection_host_t host) {}
     56 __attribute__((weak)) void connection_host_changed_kb(connection_host_t host) {}
     57 
     58 static void handle_host_changed(void) {
     59     connection_host_changed_user(config.desired_host);
     60     connection_host_changed_kb(config.desired_host);
     61 
     62     // TODO: Remove deprecated callback
     63     set_output_user(config.desired_host);
     64 }
     65 
     66 void connection_set_host_noeeprom(connection_host_t host) {
     67     if (config.desired_host == host) {
     68         return;
     69     }
     70 
     71     config.desired_host = host;
     72 
     73     handle_host_changed();
     74 }
     75 
     76 void connection_set_host(connection_host_t host) {
     77     connection_set_host_noeeprom(host);
     78 
     79     eeconfig_update_connection(&config);
     80 }
     81 
     82 void connection_next_host_noeeprom(void) {
     83     uint8_t next = 0;
     84     for (uint8_t i = 0; i < HOST_CANDIDATES_COUNT; i++) {
     85         if (host_candidates[i] == config.desired_host) {
     86             next = i == HOST_CANDIDATES_COUNT - 1 ? 0 : i + 1;
     87             break;
     88         }
     89     }
     90 
     91     connection_set_host_noeeprom(host_candidates[next]);
     92 }
     93 
     94 void connection_next_host(void) {
     95     connection_next_host_noeeprom();
     96 
     97     eeconfig_update_connection(&config);
     98 }
     99 
    100 void connection_prev_host_noeeprom(void) {
    101     uint8_t next = 0;
    102     for (uint8_t i = 0; i < HOST_CANDIDATES_COUNT; i++) {
    103         if (host_candidates[i] == config.desired_host) {
    104             next = i == 0 ? HOST_CANDIDATES_COUNT - 1 : i - 1;
    105             break;
    106         }
    107     }
    108 
    109     connection_set_host_noeeprom(host_candidates[next]);
    110 }
    111 
    112 void connection_prev_host(void) {
    113     connection_prev_host_noeeprom();
    114 
    115     eeconfig_update_connection(&config);
    116 }
    117 
    118 connection_host_t connection_get_host_raw(void) {
    119     return config.desired_host;
    120 }
    121 
    122 connection_host_t connection_auto_detect_host(void) {
    123     if (usb_connected_state()) {
    124         return CONNECTION_HOST_USB;
    125     }
    126 
    127 #ifdef BLUETOOTH_ENABLE
    128     if (bluetooth_is_connected()) {
    129         return CONNECTION_HOST_BLUETOOTH;
    130     }
    131 #endif
    132 
    133     return CONNECTION_HOST_NONE;
    134 }
    135 
    136 connection_host_t connection_get_host(void) {
    137     if (config.desired_host == CONNECTION_HOST_AUTO) {
    138         return connection_auto_detect_host();
    139     }
    140     return config.desired_host;
    141 }