X-Git-Url: http://git.scottworley.com/tattlekey/blobdiff_plain/72ba8a8d6836027eaa12bb23bddf8f72900853ab..e8a53974ae88e0bbe0d616be7d53aa060b4ed80d:/client/config.c?ds=inline diff --git a/client/config.c b/client/config.c index 8a31cf5..83a3eb3 100644 --- a/client/config.c +++ b/client/config.c @@ -1,26 +1,41 @@ #include "config.h" /* Wi-Fi credentials */ -char config_wifi_ssid[] = "THEWIFISSID"; -char config_wifi_pass[] = "THEWIFIPASSWORD"; +const char config_wifi_ssid[] = "THEWIFISSID"; +const char config_wifi_pass[] = "THEWIFIPASSWORD"; /* Network address of the server to contact */ -char config_tattle_server_ip_address[] = "192.168.10.10"; -u16_t config_tattle_port = 29803; // 'tk' +const char config_tattle_server_ip_address[] = "192.168.10.10"; +const u16_t config_tattle_port = 29803; // 'tk' /* For distinguishing reports from multiple tattlekey devices. */ -u16_t config_this_tattler_identity = 1; +const u16_t config_this_tattler_identity = 1; /* Which GPIO pin is the button connected to? * The button should span this pin and ground, connecting this pin to ground * when pressed. * https://projects.raspberrypi.org/en/projects/introduction-to-the-pico/10 * recommends pins 18, 22, or 28. */ -uint config_button_pin = 18; +const uint config_button_pin = 18; /* Don't bother reporting each separate button press when it is pressed many * times in short succession. (We also use this to de-bounce. :) */ -u32_t config_minimum_seconds_between_button_presses = 1; +const u32_t config_minimum_seconds_between_button_presses = 1; /* Send each report multiple times. */ -uint config_resend_count = 5; +const uint config_resend_count = 5; + +/* These control the size of the per-send-count press queues. +When the button is pressed more than config_maximum_queue_size times +within the resend interval, some presses will be reported fewer +than config_resend_count times. This is usually fine because it's +the old, longest-delayed, most-redundant reports that get dropped; +fresh, timely reports of new button presses will not get anywhere near +config_resend_count in a resend interval because the early resend internals +are so short. */ +const uint config_maximum_queue_size = 512; + +/* This is paranoia about unanticipated delays. Setting this to zero +would probably be fine, but imposing a minimum queue size is an easy +safety measure. */ +const uint config_minimum_queue_size = 32;