This is a very thin layer over some of the current ARM11
debug TAP utilities. The layer isn't yet hooked up.
---
src/target/arm11.h | 4 ++
src/target/arm11_dbgtap.c | 73 ++++++++++++++++++++++++++++++++++++++++++++
src/target/arm11_dbgtap.h | 3 +
3 files changed, 80 insertions(+)
--- a/src/target/arm11.h
+++ b/src/target/arm11.h
@@ -24,6 +24,7 @@
#define ARM11_H
#include "armv4_5.h"
+#include "arm_dpm.h"
/* TEMPORARY -- till we switch to the shared infrastructure */
#define ARM11_REGCACHE_COUNT 20
@@ -59,6 +60,9 @@ struct arm11_common
struct arm arm;
struct target * target; /**< Reference back to the owner */
+ /** Debug module state. */
+ struct arm_dpm dpm;
+
/** \name Processor type detection */
/*...@{*/
--- a/src/target/arm11_dbgtap.c
+++ b/src/target/arm11_dbgtap.c
@@ -951,3 +951,76 @@ int arm11_read_memory_word(struct arm11_
return arm11_run_instr_data_finish(arm11);
}
+
+/************************************************************************/
+
+/*
+ * ARM11 provider for the OpenOCD implementation of the standard
+ * architectural ARM v6/v7 "Debug Programmer's Model" (DPM).
+ */
+
+static inline struct arm11_common *dpm_to_arm11(struct arm_dpm *dpm)
+{
+ return container_of(dpm, struct arm11_common, dpm);
+}
+
+static int arm11_dpm_prepare(struct arm_dpm *dpm)
+{
+ struct arm11_common *arm11 = dpm_to_arm11(dpm);
+
+ arm11 = container_of(dpm->arm, struct arm11_common, arm);
+
+ return arm11_run_instr_data_prepare(dpm_to_arm11(dpm));
+}
+
+static int arm11_dpm_finish(struct arm_dpm *dpm)
+{
+ return arm11_run_instr_data_finish(dpm_to_arm11(dpm));
+}
+
+static int arm11_dpm_instr_write_data_dcc(struct arm_dpm *dpm,
+ uint32_t opcode, uint32_t data)
+{
+ return arm11_run_instr_data_to_core(dpm_to_arm11(dpm),
+ opcode, &data, 1);
+}
+
+static int arm11_dpm_instr_write_data_r0(struct arm_dpm *dpm,
+ uint32_t opcode, uint32_t data)
+{
+ return arm11_run_instr_data_to_core_via_r0(dpm_to_arm11(dpm),
+ opcode, data);
+}
+
+static int arm11_dpm_instr_read_data_dcc(struct arm_dpm *dpm,
+ uint32_t opcode, uint32_t *data)
+{
+ return arm11_run_instr_data_from_core(dpm_to_arm11(dpm),
+ opcode, data, 1);
+}
+
+static int arm11_dpm_instr_read_data_r0(struct arm_dpm *dpm,
+ uint32_t opcode, uint32_t *data)
+{
+ return arm11_run_instr_data_from_core_via_r0(dpm_to_arm11(dpm),
+ opcode, data);
+}
+
+
+void arm11_dpm_init(struct arm11_common *arm11, uint32_t didr)
+{
+ struct arm_dpm *dpm = &arm11->dpm;
+
+ dpm->arm = &arm11->arm;
+
+ dpm->didr = didr;
+
+ dpm->prepare = arm11_dpm_prepare;
+ dpm->finish = arm11_dpm_finish;
+
+ dpm->instr_write_data_dcc = arm11_dpm_instr_write_data_dcc;
+ dpm->instr_write_data_r0 = arm11_dpm_instr_write_data_r0;
+
+ dpm->instr_read_data_dcc = arm11_dpm_instr_read_data_dcc;
+ dpm->instr_read_data_r0 = arm11_dpm_instr_read_data_r0;
+}
--- a/src/target/arm11_dbgtap.h
+++ b/src/target/arm11_dbgtap.h
@@ -60,4 +60,7 @@ void arm11_sc7_set_vcr(struct arm11_comm
int arm11_read_memory_word(struct arm11_common *arm11,
uint32_t address, uint32_t *result);
+/* Set up high-level debug module utilities */
+void arm11_dpm_init(struct arm11_common *arm11, uint32_t didr);
+
#endif // ARM11_DBGTAP_H
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