Set host power LED based on chassis power status

kestrel/src/kestrel.c

@@ -385,6 +385,27 @@ static void display_character(char character, int dp)
     gpio3_out_write(~(value | ((dp == 0) ? 0x0000 : 0x4000)));
 }
 
+static void host_power_status_changed(void)
+{
+    uint32_t dword;
+    int power_led_on = 0;
+
+    // Set power LED based on host status
+    if (host_power_status == HOST_POWER_STATUS_OFFLINE)
+    {
+        power_led_on = 0;
+    }
+    else {
+        power_led_on = 1;
+    }
+
+    // Write power LED status to GPIO register
+    dword = gpio3_out_read();
+    dword &= ~(0x1 << 15);
+    dword |= (power_led_on & 0x1) << 15;
+    gpio3_out_write(dword);
+}
+
 static void set_led_bank_display(uint8_t bitfield)
 {
     gpio1_out_write(~bitfield);
@@ -1811,6 +1832,7 @@ static int process_interrupts_stage2(void)
             if (post_code == 0xfefe)
             {
                 host_power_status = HOST_POWER_STATUS_RUNNING;
+                host_power_status_changed();
                 display_character('0' + 2 + host_power_status, 0); // STATUS CODE
             }
 
@@ -2267,6 +2289,7 @@ void power_off_chassis(int has_lock)
     }
 
     host_power_status = HOST_POWER_STATUS_POWERING_OFF;
+    host_power_status_changed();
     display_character('0' + 2 + host_power_status, 0); // STATUS CODE
 
     // Disable PMBUS
@@ -2281,6 +2304,7 @@ void power_off_chassis(int has_lock)
     run_post_shutdown_bmc_peripheral_teardown();
 
     host_power_status = HOST_POWER_STATUS_OFFLINE;
+    host_power_status_changed();
     display_character('0' + 2 + host_power_status, 0); // STATUS CODE
 
     if (!has_lock) {
@@ -2304,6 +2328,7 @@ int power_on_chassis(int has_lock)
     }
 
     host_power_status = HOST_POWER_STATUS_POWERING_ON;
+    host_power_status_changed();
     display_character('0' + 2 + host_power_status, 0); // STATUS CODE
 
     // Verify communication with platform control FPGA
@@ -2311,6 +2336,7 @@ int power_on_chassis(int has_lock)
     if (platform_fpga_identifier[0] == 0xff)
     {
         host_power_status = HOST_POWER_STATUS_OFFLINE;
+        host_power_status_changed();
         display_character('0' + 2 + host_power_status, 0); // STATUS CODE
         if (!has_lock) {
             k_sem_give(&chassis_control_semaphore);
@@ -2324,6 +2350,7 @@ int power_on_chassis(int has_lock)
         (platform_fpga_identifier[3] != 0x20))
     {
         host_power_status = HOST_POWER_STATUS_OFFLINE;
+        host_power_status_changed();
         display_character('0' + 2 + host_power_status, 0); // STATUS CODE
         if (!has_lock) {
             k_sem_give(&chassis_control_semaphore);
@@ -2400,6 +2427,7 @@ int power_on_chassis(int has_lock)
     }
 
     host_power_status = HOST_POWER_STATUS_IPLING;
+    host_power_status_changed();
     display_character('0' + 2 + host_power_status, 0); // STATUS CODE
 
     if (!has_lock) {