X-Git-Url: https://review.openocd.org/gitweb?a=blobdiff_plain;f=src%2Ftarget%2Farm_jtag.h;h=37c228f8e12bad3947604005bcbedaf7d96589a5;hb=e7a1ec64bface364305e9c355811838e9f310bf3;hp=6f03fc6eb3607a2a6f33e7c7c29c53407e8c4651;hpb=cb4a475f6c26ff197cd9d601b0b9f86653d961a2;p=openocd.git

diff --git a/src/target/arm_jtag.h b/src/target/arm_jtag.h
index 6f03fc6eb3..37c228f8e1 100644
--- a/src/target/arm_jtag.h
+++ b/src/target/arm_jtag.h
@@ -2,7 +2,7 @@
  *   Copyright (C) 2005 by Dominic Rath                                    *
  *   Dominic.Rath@gmx.de                                                   *
  *                                                                         *
- *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
+ *   Copyright (C) 2007-2010 Øyvind Harboe                                 *
  *   oyvind.harboe@zylin.com                                               *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -36,9 +36,42 @@ struct arm_jtag
 	uint32_t intest_instr;
 };
 
-int arm_jtag_set_instr(struct arm_jtag *jtag_info,
-		uint32_t new_instr, void *verify_capture);
-int arm_jtag_scann(struct arm_jtag *jtag_info, uint32_t new_scan_chain);
+int arm_jtag_set_instr_inner(struct arm_jtag *jtag_info, uint32_t new_instr,
+		void *no_verify_capture,
+		tap_state_t end_state);
+static inline int arm_jtag_set_instr(struct arm_jtag *jtag_info,
+		uint32_t new_instr, void *no_verify_capture, tap_state_t end_state)
+{
+	/* inline most common code path */
+	struct jtag_tap *tap;
+	tap = jtag_info->tap;
+	if (tap == NULL)
+		return ERROR_FAIL;
+
+	if (buf_get_u32(tap->cur_instr, 0, tap->ir_length) != new_instr)
+	{
+		return arm_jtag_set_instr_inner(jtag_info, new_instr, no_verify_capture, end_state);
+	}
+
+	return ERROR_OK;
+
+}
+
+
+int arm_jtag_scann_inner(struct arm_jtag *jtag_info, uint32_t new_scan_chain, tap_state_t end_state);
+static inline int arm_jtag_scann(struct arm_jtag *jtag_info, uint32_t new_scan_chain, tap_state_t end_state)
+{
+	/* inline most common code path */
+	int retval = ERROR_OK;
+	if (jtag_info->cur_scan_chain != new_scan_chain)
+	{
+		return arm_jtag_scann_inner(jtag_info, new_scan_chain, end_state);
+	}
+
+	return retval;
+}
+
+
 int arm_jtag_setup_connection(struct arm_jtag *jtag_info);
 
 /* use this as a static so we can inline it in -O3 and refer to it via a pointer  */