Add support for ultra high-speed baud rates.

src/modem_core.c

@@ -32,6 +32,8 @@ int mdm_init()
   mdm_responses[MDM_RESP_CONNECT_57600] = "CONNECT 57600";
   mdm_responses[MDM_RESP_CONNECT_115200] = "CONNECT 115200";
   mdm_responses[MDM_RESP_CONNECT_230400] = "CONNECT 230400";
+  mdm_responses[MDM_RESP_CONNECT_460800] = "CONNECT 460800";
+  mdm_responses[MDM_RESP_CONNECT_921600] = "CONNECT 921600";
   return 0;
 }
 
@@ -41,6 +43,12 @@ int get_connect_response(int speed, int level)
     return MDM_RESP_CONNECT;
   }
   switch (speed) {
+  case 921600:
+    return MDM_RESP_CONNECT_921600;
+  case 460800:
+    return MDM_RESP_CONNECT_460800;
+  case 230400:
+    return MDM_RESP_CONNECT_230400;
   case 115200:
     return MDM_RESP_CONNECT_115200;
   case 57600:

src/modem_core.h

@@ -22,6 +22,8 @@
 #define MDM_RESP_CONNECT_57600 18
 #define MDM_RESP_CONNECT_115200 19
 #define MDM_RESP_CONNECT_230400 20
+#define MDM_RESP_CONNECT_460800 21
+#define MDM_RESP_CONNECT_921600 22
 
 #define MDM_CL_DSR_LOW 0
 #define MDM_CL_DSR_HIGH 1

src/serial.c

@@ -16,6 +16,12 @@ int ser_get_bps_const(int speed)
   LOG(LOG_DEBUG, "Checking speed: %d", speed);
 
   switch (speed) {
+  case 921600:
+    bps_rate = B921600;
+    break;
+  case 460800:
+    bps_rate = B460800;
+    break;
   case 230400:
     bps_rate = B230400;
     break;