diff options
Diffstat (limited to 'main/viewport_state.c')
| -rw-r--r-- | main/viewport_state.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/main/viewport_state.c b/main/viewport_state.c index 7ddf737..a67745a 100644 --- a/main/viewport_state.c +++ b/main/viewport_state.c @@ -1,7 +1,9 @@ #include "viewport_state.h" +#include <stdio.h> #include <string.h> +#include "esp_mac.h" #include "esp_timer.h" #include "freertos/FreeRTOS.h" #include "freertos/semphr.h" @@ -9,6 +11,22 @@ static viewport_state_t s_state; static SemaphoreHandle_t s_mutex; +// Populate viewport_name with the full base MAC, colons stripped +// (e.g. e8:f6:0a:e0:90:94 → "e8f60ae09094"). Stable across reboots, +// globally unique, and 12 alphanumeric chars — fits comfortably under +// the 32-char mDNS hostname limit with the "viewport-" prefix. +// POST /config can override it with a friendlier name. +static void seed_mac_and_name(char *mac_str, size_t mac_cap, + char *name, size_t name_cap) +{ + uint8_t mac[6] = {0}; + esp_read_mac(mac, ESP_MAC_BASE); + snprintf(mac_str, mac_cap, "%02x:%02x:%02x:%02x:%02x:%02x", + mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); + snprintf(name, name_cap, "%02x%02x%02x%02x%02x%02x", + mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); +} + void viewport_state_init(void) { memset(&s_state, 0, sizeof(s_state)); @@ -19,6 +37,8 @@ void viewport_state_init(void) s_state.orientation = VIEWPORT_ORIENTATION_PORTRAIT; s_state.boot_us = (uint64_t)esp_timer_get_time(); s_state.last_frame_us = -1; + seed_mac_and_name(s_state.mac_str, sizeof(s_state.mac_str), + s_state.viewport_name, sizeof(s_state.viewport_name)); s_mutex = xSemaphoreCreateMutex(); } |