[h89] next phase of bring-up begins.

Author: tschak909

lib/bus/h89/H89IOChannel.cpp

@@ -0,0 +1,15 @@
+#include "H89IOChannel.h"
+#include "h89.h"
+
+size_t H89IOChannel::dataOut(const void *buffer, size_t length)
+{
+    SYSTEM_BUS.port_putbuf(buffer,length);
+}
+
+void H89IOChannel::updateFIFO()
+{
+    while(SYSTEM_BUS.bus_available())
+    {
+        _fifo += SYSTEM_BUS.port_getc();
+    }
+}

lib/bus/h89/H89IOChannel.h

@@ -0,0 +1,9 @@
+#include "IOChannel.h"
+
+class H89IOChannel : public IOChannel
+{
+
+protected:
+    virtual size_t dataOut(const void *buffer, size_t length) = 0;
+    virtual void updateFIFO() = 0;
+};

lib/bus/h89/h89.cpp

@@ -164,7 +164,7 @@ int systemBus::port_putc(uint8_t c)
  * @param len Length of buffer to send
  * @return number of bytes actually sent.
  */
-uint16_t systemBus::port_putbuf(void *buf, uint16_t len)
+uint16_t systemBus::port_putbuf(const void *buf, uint16_t len)
 {
     uint16_t l = 0;
     uint8_t *p = (uint8_t *)buf;

lib/bus/h89/h89.h

@@ -95,23 +95,6 @@ class systemBus
 private:
     std::map<uint8_t, virtualDevice *> _daisyChain;
 
-    int bus_available();
-    
-    // returns signed int with data or -1 if no data is available
-    int port_getc();
-
-    // return data if it arrives before timeout or -1 if timeout expires
-    int port_getc_timeout(uint16_t timeout);
-
-    // returns length of data received, if timeout expires returns all data received until then
-    uint16_t port_getbuf(void *buf, uint16_t len, uint16_t timeout);
-
-    // writes character to port
-    int port_putc(uint8_t c);
-
-    // writes data to port, returns number of bytes written
-    uint16_t port_putbuf(void *buf, uint16_t len);
-
 public:
     void setup(); // one time setup
     void service(); // this runs in a loop 
@@ -132,6 +115,23 @@ class systemBus
 
     bool shuttingDown = false;                                  // TRUE if we are in shutdown process
     bool getShuttingDown() { return shuttingDown; };
+
+    int bus_available();
+    
+    // returns signed int with data or -1 if no data is available
+    int port_getc();
+
+    // return data if it arrives before timeout or -1 if timeout expires
+    int port_getc_timeout(uint16_t timeout);
+
+    // returns length of data received, if timeout expires returns all data received until then
+    uint16_t port_getbuf(void *buf, uint16_t len, uint16_t timeout);
+
+    // writes character to port
+    int port_putc(uint8_t c);
+
+    // writes data to port, returns number of bytes written
+    uint16_t port_putbuf(const void *buf, uint16_t len);
 };
 
 extern systemBus SYSTEM_BUS;