* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+
#ifndef OPENOCD_JTAG_INTERFACE_H
#define OPENOCD_JTAG_INTERFACE_H
-#include "jtag.h"
+#include <jtag/jtag.h>
/* @file
* The "Cable Helper API" is what the cable drivers can use to help
* expected to traverse, not just end points of a multi-step state path.
*
* @param new_state The state we think the TAPs are currently in (or
- * are about to enter).
+ * are about to enter).
*/
#if defined(_DEBUG_JTAG_IO_)
#define tap_set_state(new_state) \
* state follower via tap_set_state().
*
* @param new_end_state The state the TAPs should enter at completion of
- * a pending TAP operation.
+ * a pending TAP operation.
*/
void tap_set_end_state(tap_state_t new_end_state);
* @param from The starting state.
* @param to The desired final state.
* @return int The required TMS bit sequence, with the first bit in the
- * sequence at bit 0.
+ * sequence at bit 0.
*/
int tap_get_tms_path(tap_state_t from, tap_state_t to);
-
/**
* Function int tap_get_tms_path_len
* returns the total number of bits that represents a TMS path
*/
tap_state_t tap_state_transition(tap_state_t current_state, bool tms);
-/// Allow switching between old and new TMS tables. @see tap_get_tms_path
+/** Allow switching between old and new TMS tables. @see tap_get_tms_path */
void tap_use_new_tms_table(bool use_new);
-/// @returns True if new TMS table is active; false otherwise.
+/** @returns True if new TMS table is active; false otherwise. */
bool tap_uses_new_tms_table(void);
#ifdef _DEBUG_JTAG_IO_
{
return start_tap_state;
}
-#endif // _DEBUG_JTAG_IO_
+#endif /* _DEBUG_JTAG_IO_ */
-typedef struct jtag_interface_s
-{
- /// The name of the JTAG interface driver.
- char* name;
+/**
+ * Represents a driver for a debugging interface.
+ *
+ * @todo Rename; perhaps "debug_driver". This isn't an interface,
+ * it's a driver! Also, not all drivers support JTAG.
+ *
+ * @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 jtag_interface {
+ /** The name of the JTAG interface driver. */
+ char *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 **transports;
+
+ const struct swd_driver *swd;
/**
* Execute queued commands.
/**
* The interface driver may register additional commands to expose
* additional features not covered by the standard command set.
- * @param cmd_ctx The context in which commands should be registered.
- * @returns ERROR_OK on success, or an error code on failure.
*/
- int (*register_commands)(struct command_context_s* cmd_ctx);
+ const struct command_registration *commands;
/**
- * Interface driver must initalize any resources and connect to a
+ * Interface driver must initialize any resources and connect to a
* JTAG device.
+ *
+ * quit() is invoked if and only if init() succeeds. quit() is always
+ * invoked if init() succeeds. Same as malloc() + free(). Always
+ * invoke free() if malloc() succeeds and do not invoke free()
+ * otherwise.
+ *
* @returns ERROR_OK on success, or an error code on failure.
*/
int (*init)(void);
/**
* Interface driver must tear down all resources and disconnect from
* the JTAG device.
+ *
* @returns ERROR_OK on success, or an error code on failure.
*/
int (*quit)(void);
* and use a fallback kHz TCK.
* @returns ERROR_OK on success, or an error code on failure.
*/
- int (*khz)(int khz, int* jtag_speed);
+ int (*khz)(int khz, int *jtag_speed);
/**
* Calculate the clock frequency (in KHz) for the given @a speed.
* @returns ERROR_OK on success, or an error code if the
* interface cannot support the specified speed (KHz or RTCK).
*/
- int (*speed_div)(int speed, int* khz);
+ int (*speed_div)(int speed, int *khz);
/**
* Read and clear the power dropout flag. Note that a power dropout
*
* @returns ERROR_OK on success, or an error code on failure.
*/
- int (*power_dropout)(int* power_dropout);
+ int (*power_dropout)(int *power_dropout);
/**
* Read and clear the srst asserted detection flag.
* been asserted.
* @returns ERROR_OK on success, or an error code on failure.
*/
- int (*srst_asserted)(int* srst_asserted);
-} jtag_interface_t;
+ int (*srst_asserted)(int *srst_asserted);
+};
+
+extern const char *jtag_only[];
+
+extern const struct swd_driver *swd;
+void adapter_assert_reset(void);
+void adapter_deassert_reset(void);
-#endif // OPENOCD_JTAG_INTERFACE_H
+#endif /* OPENOCD_JTAG_INTERFACE_H */
projects / fw / openocd / blobdiff