SSR: USB communitation including test client

[home-hw.git] / ssr / Src / main.c

diff --git a/ssr/Src/main.c b/ssr/Src/main.c
index cc6e3636777405c8354cda4ae8cee2e8922e0f86..da07b57dce35e694fb97dc40c7df7de1f1ccca6e 100644 (file)
--- a/ssr/Src/main.c
+++ b/ssr/Src/main.c
@@ -52,6 +52,7 @@
 /* Private variables ---------------------------------------------------------*/
 
 PCD_HandleTypeDef hpcd_USB_FS;
+volatile byte led_trigger;
 
 /* USER CODE BEGIN PV */
 /* Private variables ---------------------------------------------------------*/
@@ -73,6 +74,44 @@ static void MX_USART1_UART_Init(void);
 
 /* USER CODE BEGIN 0 */
 
+static void process_packet(void)
+{
+  uint cmd = get_u32_be(rx_packet);
+  uint arg = get_u32_be(rx_packet+4);
+  debug_printf("<< cmd %08x %08x\n", cmd, arg);
+
+  memset(tx_packet, 0, sizeof(tx_packet));
+  put_u32_be(tx_packet, 1);
+
+  switch (cmd)
+    {
+    case 1:
+      if (arg < 16)
+       {
+         if (arg & 1)
+           LL_GPIO_ResetOutputPin(SSR1_GPIO_Port, SSR1_Pin);
+         else
+           LL_GPIO_SetOutputPin(SSR1_GPIO_Port, SSR1_Pin);
+         if (arg & 2)
+           LL_GPIO_ResetOutputPin(SSR2_GPIO_Port, SSR2_Pin);
+         else
+           LL_GPIO_SetOutputPin(SSR2_GPIO_Port, SSR2_Pin);
+         if (arg & 4)
+           LL_GPIO_ResetOutputPin(SSR3_GPIO_Port, SSR3_Pin);
+         else
+           LL_GPIO_SetOutputPin(SSR3_GPIO_Port, SSR3_Pin);
+         if (arg & 8)
+           LL_GPIO_ResetOutputPin(SSR4_GPIO_Port, SSR4_Pin);
+         else
+           LL_GPIO_SetOutputPin(SSR4_GPIO_Port, SSR4_Pin);
+         put_u32_be(tx_packet, 0);
+       }
+      break;
+    }
+
+  debug_printf(">> status %08x\n", get_u32_be(tx_packet));
+}
+
 /* USER CODE END 0 */
 
 /**
@@ -133,53 +172,34 @@ int main(void)
   /* USER CODE BEGIN WHILE */
   while (1)
   {
-    static byte led_state;
-    if (led_state)
+    if (led_trigger)
       {
-       LL_GPIO_SetOutputPin(LED_GPIO_Port, LED_Pin);
-       LL_GPIO_SetOutputPin(SSR1_GPIO_Port, SSR1_Pin);
-       LL_GPIO_SetOutputPin(SSR2_GPIO_Port, SSR2_Pin);
-       LL_GPIO_SetOutputPin(SSR3_GPIO_Port, SSR3_Pin);
-       LL_GPIO_SetOutputPin(SSR4_GPIO_Port, SSR4_Pin);
-      }
-    else
-      {
-       LL_GPIO_ResetOutputPin(LED_GPIO_Port, LED_Pin);
-       static byte xxx;
-       switch (xxx)
-         {
-         case 0:
-           LL_GPIO_ResetOutputPin(SSR1_GPIO_Port, SSR1_Pin);
-           break;
-         case 1:
-           LL_GPIO_ResetOutputPin(SSR2_GPIO_Port, SSR2_Pin);
-           break;
-         case 2:
-           LL_GPIO_ResetOutputPin(SSR3_GPIO_Port, SSR3_Pin);
-           break;
-         case 3:
-           LL_GPIO_ResetOutputPin(SSR4_GPIO_Port, SSR4_Pin);
-           break;
-         }
-       xxx = (xxx+1) % 4;
+       led_trigger = 0;
+       static byte led_state;
+       if (led_state)
+         LL_GPIO_SetOutputPin(LED_GPIO_Port, LED_Pin);
+       else
+         LL_GPIO_ResetOutputPin(LED_GPIO_Port, LED_Pin);
+       led_state ^= 1;
       }
-    led_state ^= 1;
 
     if (rx_packet_state == 1 && !tx_packet_state)
       {
        tx_packet_state = 1;
-       put_u32_be(tx_packet, 42);
+       process_packet();
        usb_ep_send(&usb, 0x82, tx_packet, 12);
        rx_packet_state = 0;
        usb_ep_receive(&usb, 0x01, rx_packet, 64);
       }
 
+#if 0
     static int cnt;
     debug_printf("Counter = %d\n", cnt);
     cnt++;
+#endif
 
-    //__WFI();
-    LL_mDelay(1000);
+    __WFI();
+    // LL_mDelay(1000);
 
   /* USER CODE END WHILE */