From 3250103aa0e98ab68aafefb20da8e2429ae9cfe9 Mon Sep 17 00:00:00 2001
From: Matthias Ringwald <matthias@ringwald.ch>
Date: Wed, 23 Mar 2016 15:54:41 +0100
Subject: [PATCH] posix: support B300/B1200 mapped to 2mbps hack

---
 platform/posix/hci_transport_h4_posix.c | 16 ++++++++++++++++
 port/posix-h4/main.c                    | 16 ++++++++++++----
 2 files changed, 28 insertions(+), 4 deletions(-)

diff --git a/platform/posix/hci_transport_h4_posix.c b/platform/posix/hci_transport_h4_posix.c
index 1920d4498..8684ca5a1 100644
--- a/platform/posix/hci_transport_h4_posix.c
+++ b/platform/posix/hci_transport_h4_posix.c
@@ -125,6 +125,22 @@ static int    h4_set_baudrate(uint32_t baudrate){
 #ifdef B921600
         case 921600: brate=B921600; break;
 #endif
+// Hacks to switch to 2/3 mbps on FTDI FT232 chipsets
+// requires special config in Info.plist or Registry
+#ifdef HAVE_B300_MAPPED_TO_2000000
+        case 2000000: brate=B300; break;
+#endif
+#ifdef HAVE_B600_MAPPED_TO_3000000
+        case 3000000: brate=B600; break;
+#endif
+#ifdef HAVE_B1200_MAPPED_TO_2000000
+        case 2000000: brate=B1200; break;
+#endif
+#ifdef HAVE_B2400_MAPPED_TO_3000000
+        case 3000000: brate=B2400; break;
+#endif
+        default:
+            break;
     }
     cfsetospeed(&toptions, brate);
     cfsetispeed(&toptions, brate);
diff --git a/port/posix-h4/main.c b/port/posix-h4/main.c
index e2c314347..e6b9c358a 100644
--- a/port/posix-h4/main.c
+++ b/port/posix-h4/main.c
@@ -94,9 +94,17 @@ void hal_led_toggle(void){
     led_state = 1 - led_state;
     printf("LED State %u\n", led_state);
 }
-static void using_921600_baud(void){
+static void use_fast_uart(void){
+#if defined(HAVE_B1200_MAPPED_TO_3000000) || defined(HAVE_B300_MAPPED_TO_3000000)
+    printf("Using 3000000 baud.\n");
+    config.baudrate_main = 3000000;
+#elif defined(HAVE_B1200_MAPPED_TO_2000000) || defined(HAVE_B300_MAPPED_TO_2000000)
+    printf("Using 2000000 baud.\n");
+    config.baudrate_main = 2000000;
+#else
     printf("Using 921600 baud.\n");
     config.baudrate_main = 921600;
+#endif
 }
 
 static void local_version_information_callback(uint8_t * packet){
@@ -114,12 +122,12 @@ static void local_version_information_callback(uint8_t * packet){
     switch (manufacturer){
         case COMPANY_ID_CAMBRIDGE_SILICON_RADIO:
             printf("Cambridge Silicon Radio CSR chipset.\n");
-            using_921600_baud();
+            use_fast_uart();
             hci_set_chipset(btstack_chipset_csr_instance());
             break;
         case COMPANY_ID_TEXAS_INSTRUMENTS_INC: 
             printf("Texas Instruments - CC256x compatible chipset.\n");
-            using_921600_baud();
+            use_fast_uart();
             hci_set_chipset(btstack_chipset_cc256x_instance());
             break;
         case COMPANY_ID_BROADCOM_CORPORATION:   
@@ -128,7 +136,7 @@ static void local_version_information_callback(uint8_t * packet){
             break;
         case COMPANY_ID_ST_MICROELECTRONICS:   
             printf("ST Microelectronics - using STLC2500d driver.\n");
-            using_921600_baud();
+            use_fast_uart();
             hci_set_chipset(btstack_chipset_stlc2500d_instance());
             break;
         case COMPANY_ID_EM_MICROELECTRONICS_MARIN: