update teensy3 lib to latest, use new vector change mechanism

[megadrive.git] / teensy3 / usb_seremu.c

diff --git a/teensy3/usb_seremu.c b/teensy3/usb_seremu.c
index e4781e8..976a47b 100644 (file)
--- a/teensy3/usb_seremu.c
+++ b/teensy3/usb_seremu.c
@@ -10,10 +10,10 @@
  * permit persons to whom the Software is furnished to do so, subject to
  * the following conditions:
  *
- * 1. The above copyright notice and this permission notice shall be 
+ * 1. The above copyright notice and this permission notice shall be
  * included in all copies or substantial portions of the Software.
  *
- * 2. If the Software is incorporated into a build system that allows 
+ * 2. If the Software is incorporated into a build system that allows
  * selection among a list of target devices, then similar target
  * devices manufactured by PJRC.COM must be included in the list of
  * target devices and selectable in the same manner.
@@ -28,7 +28,8 @@
  * SOFTWARE.
  */
 
-//#include "mk20dx128.h"
+#if F_CPU >= 20000000
+
 #include "usb_dev.h"
 #include "usb_seremu.h"
 #include "core_pins.h" // for yield()
@@ -138,14 +139,23 @@ void usb_seremu_flush_input(void)
 // software.  If it's too long, we stall the user's program when no software is running.
 #define TX_TIMEOUT_MSEC 30
 
-#if F_CPU == 96000000
+#if F_CPU == 168000000
+  #define TX_TIMEOUT (TX_TIMEOUT_MSEC * 1100)
+#elif F_CPU == 144000000
+  #define TX_TIMEOUT (TX_TIMEOUT_MSEC * 932)
+#elif F_CPU == 120000000
+  #define TX_TIMEOUT (TX_TIMEOUT_MSEC * 764)
+#elif F_CPU == 96000000
   #define TX_TIMEOUT (TX_TIMEOUT_MSEC * 596)
+#elif F_CPU == 72000000
+  #define TX_TIMEOUT (TX_TIMEOUT_MSEC * 512)
 #elif F_CPU == 48000000
   #define TX_TIMEOUT (TX_TIMEOUT_MSEC * 428)
 #elif F_CPU == 24000000
   #define TX_TIMEOUT (TX_TIMEOUT_MSEC * 262)
 #endif
 
+
 // When we've suffered the transmit timeout, don't wait again until the computer
 // begins accepting data.  If no software is running to receive, we'll just discard
 // data as rapidly as Serial.print() can generate it, until there's something to
@@ -213,6 +223,24 @@ int usb_seremu_write(const void *buffer, uint32_t size)
 #endif
 }
 
+int usb_seremu_write_buffer_free(void)
+{
+       uint32_t len;
+
+       tx_noautoflush = 1;
+       if (!tx_packet) {
+               if (!usb_configuration ||
+                 usb_tx_packet_count(SEREMU_TX_ENDPOINT) >= TX_PACKET_LIMIT ||
+                 (tx_packet = usb_malloc()) == NULL) {
+                       tx_noautoflush = 0;
+                       return 0;
+               }
+       }
+       len = SEREMU_TX_SIZE - tx_packet->index;
+       tx_noautoflush = 0;
+       return len;
+}
+
 void usb_seremu_flush_output(void)
 {
        int i;
@@ -247,3 +275,5 @@ void usb_seremu_flush_callback(void)
 }
 
 #endif // SEREMU_INTERFACE
+
+#endif // F_CPU >= 20 MHz