adapter: switch from struct jtag_interface to adapter_driver

[openocd.git] / src / jtag / interface.h

diff --git a/src/jtag/interface.h b/src/jtag/interface.h
index c5579f5e06b535c5ecd22228026ed2da121b4ad1..feda35699e92a5c998c5e9dbc256d97396e34cf6 100644 (file)
--- a/src/jtag/interface.h
+++ b/src/jtag/interface.h
@@ -192,32 +192,34 @@ static inline tap_state_t jtag_debug_state_machine(const void *tms_buf,
  * debugging interface.
  */
 struct jtag_interface {
-       /** The name of the JTAG interface driver. */
-       const char * const name;
-
        /**
         * Bit vector listing capabilities exposed by this driver.
         */
        unsigned supported;
 #define DEBUG_CAP_TMS_SEQ      (1 << 0)
 
-       /** transports supported in C code (NULL terminated vector) */
-       const char * const *transports;
-
-       const struct swd_driver *swd;
-
        /**
         * Execute queued commands.
         * @returns ERROR_OK on success, or an error code on failure.
         */
        int (*execute_queue)(void);
+};
 
-       /**
-        * Set the interface speed.
-        * @param speed The new interface speed setting.
-        * @returns ERROR_OK on success, or an error code on failure.
-        */
-       int (*speed)(int speed);
+/**
+ * Represents a driver for a debugging interface
+ *
+ * @todo We need a per-instance structure too, and changes to pass
+ * that structure to the driver.  Instances can for example be in
+ * either SWD or JTAG modes.  This will help remove globals, and
+ * eventually to cope with systems which have more than one such
+ * debugging interface.
+ */
+struct adapter_driver {
+       /** The name of the interface driver. */
+       const char * const name;
+
+       /** transports supported in C code (NULL terminated vector) */
+       const char * const *transports;
 
        /**
         * The interface driver may register additional commands to expose
@@ -260,6 +262,13 @@ struct jtag_interface {
         */
        int (*reset)(int srst, int trst);
 
+       /**
+        * Set the interface speed.
+        * @param speed The new interface speed setting.
+        * @returns ERROR_OK on success, or an error code on failure.
+        */
+       int (*speed)(int speed);
+
        /**
         * Returns JTAG maxium speed for KHz. 0 = RTCK. The function returns
         *  a failure if it can't support the KHz/RTCK.
@@ -336,6 +345,12 @@ struct jtag_interface {
         * @returns ERROR_OK on success, an error code on failure.
         */
        int (*poll_trace)(uint8_t *buf, size_t *size);
+
+       /** Low-level JTAG APIs */
+       struct jtag_interface *jtag_ops;
+
+       /** Low-level SWD APIs */
+       const struct swd_driver *swd_ops;
 };
 
 extern const char * const jtag_only[];