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-rw-r--r--src/jtag/usbprog.c77
-rw-r--r--src/target/Makefile.am11
-rw-r--r--src/target/etm.c169
-rw-r--r--src/target/etm.h2
-rw-r--r--src/target/image.h2
-rw-r--r--src/target/oocd_trace.c429
-rw-r--r--src/target/oocd_trace.h64
7 files changed, 716 insertions, 38 deletions
diff --git a/src/jtag/usbprog.c b/src/jtag/usbprog.c
index 4f7cfdd6..cdf32704 100644
--- a/src/jtag/usbprog.c
+++ b/src/jtag/usbprog.c
@@ -1,6 +1,14 @@
/***************************************************************************
* Copyright (C) 2007 by Benedikt Sauter sauter@ixbat.de *
- * based on Dominic Rath's usbprog.c *
+ * based on Dominic Rath's amt_jtagaccel.c *
+ * *
+ * usbprog is a free programming adapter. You can easily install *
+ * different firmware versions from an "online pool" over USB. *
+ * The adapter can be used for programming and debugging AVR and ARM *
+ * processors, as USB to RS232 converter, as JTAG interface or as *
+ * simple I/O interface (5 lines). *
+ * *
+ * http://www.embedded-projects.net/usbprog *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
@@ -17,6 +25,7 @@
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
@@ -33,6 +42,12 @@
#define VID 0x1781
#define PID 0x0c62
+// Pins at usbprog
+#define TDO_BIT 0
+#define TDI_BIT 3
+#define TCK_BIT 2
+#define TMS_BIT 1
+
int usbprog_execute_queue(void);
int usbprog_speed(int speed);
int usbprog_register_commands(struct command_context_s *cmd_ctx);
@@ -49,23 +64,14 @@ void usbprog_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size);
jtag_interface_t usbprog_interface =
{
.name = "usbprog",
-
.execute_queue = usbprog_execute_queue,
-
.support_pathmove = 0,
-
.speed = usbprog_speed,
.register_commands = usbprog_register_commands,
.init = usbprog_init,
.quit = usbprog_quit
};
-// pins from avr
-#define TDO_BIT 0
-#define TDI_BIT 3
-#define TCK_BIT 2
-#define TMS_BIT 1
-
#define UNKOWN_COMMAND 0x00
#define PORT_DIRECTION 0x01
#define PORT_SET 0x02
@@ -76,6 +82,7 @@ jtag_interface_t usbprog_interface =
#define READ_TDO 0x07
#define WRITE_AND_READ 0x08
#define WRITE_TMS 0x09
+#define WRITE_TMS_CHAIN 0x0A
struct usbprog_jtag
{
@@ -95,6 +102,11 @@ void usbprog_jtag_write_tdi(struct usbprog_jtag *usbprog_jtag, char * buffer, in
void usbprog_jtag_write_and_read(struct usbprog_jtag *usbprog_jtag, char * buffer, int size);
void usbprog_jtag_write_tms(struct usbprog_jtag *usbprog_jtag, char tms_scan);
+char tms_chain[64];
+int tms_chain_index;
+void usbprog_jtag_tms_collect(char tms_scan);
+void usbprog_jtag_tms_send(struct usbprog_jtag *usbprog_jtag);
+
void usbprog_write(int tck, int tms, int tdi);
void usbprog_reset(int trst, int srst);
@@ -201,6 +213,7 @@ int usbprog_init(void)
{
usbprog_jtag_handle = usbprog_jtag_open();
+ tms_chain_index=0;
if(usbprog_jtag_handle==0){
ERROR("Can't find USB JTAG Interface! Please check connection and permissions.");
return ERROR_JTAG_INIT_FAILED;
@@ -245,11 +258,6 @@ void usbprog_state_move(void) {
tms = (tms_scan >> i) & 1;
}
- // moved into firmware
- // INFO("4");
- // koennte man in tms verlagern
- //usbprog_write(0, tms, 0);
-
cur_state = end_state;
}
@@ -295,23 +303,25 @@ void usbprog_runtest(int num_cycles)
enum tap_state saved_end_state = end_state;
- /* only do a state_move when we're not already in RTI */
+
+ /* only do a state_move when we're not already in RTI */
if (cur_state != TAP_RTI)
{
usbprog_end_state(TAP_RTI);
- //INFO("6");
usbprog_state_move();
}
/* execute num_cycles */
if(num_cycles>0)
{
- INFO("5");
usbprog_write(0, 0, 0);
}
+ else {
+ usbprog_jtag_tms_send(usbprog_jtag_handle);
+ }
+
for (i = 0; i < num_cycles; i++)
{
- INFO("3");
usbprog_write(1, 0, 0);
usbprog_write(0, 0, 0);
}
@@ -336,10 +346,11 @@ void usbprog_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size)
else
usbprog_end_state(TAP_SD);
- //INFO("7");
usbprog_state_move();
usbprog_end_state(saved_end_state);
+ usbprog_jtag_tms_send(usbprog_jtag_handle);
+
if (type == SCAN_OUT) {
usbprog_jtag_write_tdi(usbprog_jtag_handle,buffer, scan_size);
}
@@ -363,8 +374,6 @@ void usbprog_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size)
void usbprog_write(int tck, int tms, int tdi)
{
- //INFO("->USBPROG SLICE");
- //DEBUG("slice tck %i tms %i tdi %i",tck,tms,tdi);
unsigned char output_value=0x00;
if (tms)
@@ -380,7 +389,6 @@ void usbprog_write(int tck, int tms, int tdi)
/* (1) assert or (0) deassert reset lines */
void usbprog_reset(int trst, int srst)
{
- //INFO("->USBPROG RESET");
DEBUG("trst: %i, srst: %i", trst, srst);
if(trst)
@@ -574,10 +582,7 @@ void usbprog_jtag_write_tdi(struct usbprog_jtag *usbprog_jtag, char * buffer, in
void usbprog_jtag_write_tms(struct usbprog_jtag *usbprog_jtag, char tms_scan)
{
- char tmp[2]; // fastes packet size for usb controller
- tmp[0] = WRITE_TMS;
- tmp[1] = tms_scan;
- usb_bulk_write(usbprog_jtag->usb_handle,3,tmp,2,1000);
+ usbprog_jtag_tms_collect(tms_scan);
}
@@ -630,3 +635,21 @@ int usbprog_jtag_get_bit(struct usbprog_jtag *usbprog_jtag, int bit)
return 0;
}
+void usbprog_jtag_tms_collect(char tms_scan){
+ tms_chain[tms_chain_index]=tms_scan;
+ tms_chain_index++;
+}
+
+void usbprog_jtag_tms_send(struct usbprog_jtag *usbprog_jtag){
+ int i;
+ if(tms_chain_index>0) {
+ char tmp[tms_chain_index+2];
+ tmp[0] = WRITE_TMS_CHAIN;
+ tmp[1] = (char)(tms_chain_index);
+ for(i=0;i<tms_chain_index+1;i++)
+ tmp[2+i] = tms_chain[i];
+ usb_bulk_write(usbprog_jtag->usb_handle,3,tmp,tms_chain_index+2,1000);
+ tms_chain_index=0;
+ }
+}
+
diff --git a/src/target/Makefile.am b/src/target/Makefile.am
index d33d161b..c2aa65b4 100644
--- a/src/target/Makefile.am
+++ b/src/target/Makefile.am
@@ -1,11 +1,18 @@
+
+if OOCD_TRACE
+OOCD_TRACE_FILES = oocd_trace.c
+else
+OOCD_TRACE_FILES =
+endif
+
INCLUDES = -I$(top_srcdir)/src/gdb -I$(top_srcdir)/src/helper -I$(top_srcdir)/src/jtag -I$(top_srcdir)/src/xsvf $(all_includes)
METASOURCES = AUTO
noinst_LIBRARIES = libtarget.a
libtarget_a_SOURCES = target.c register.c breakpoints.c armv4_5.c embeddedice.c etm.c arm7tdmi.c arm9tdmi.c \
arm_jtag.c arm7_9_common.c algorithm.c arm920t.c arm720t.c armv4_5_mmu.c armv4_5_cache.c arm_disassembler.c \
arm966e.c arm926ejs.c etb.c xscale.c arm_simulator.c image.c armv7m.c cortex_m3.c cortex_swjdp.c \
- etm_dummy.c
+ etm_dummy.c $(OOCD_TRACE_FILES)
noinst_HEADERS = target.h register.h armv4_5.h embeddedice.h etm.h arm7tdmi.h arm9tdmi.h \
arm_jtag.h arm7_9_common.h arm920t.h arm720t.h armv4_5_mmu.h armv4_5_cache.h breakpoints.h algorithm.h \
arm_disassembler.h arm966e.h arm926ejs.h etb.h xscale.h arm_simulator.h image.h armv7m.h cortex_m3.h cortex_swjdp.h \
- etm_dummy.h
+ etm_dummy.h oocd_trace.h
diff --git a/src/target/etm.c b/src/target/etm.c
index e095e50d..52e4b3d6 100644
--- a/src/target/etm.c
+++ b/src/target/etm.c
@@ -285,12 +285,12 @@ reg_cache_t* etm_build_reg_cache(target_t *target, arm_jtag_t *jtag_info, etm_co
reg_cache->next = etb_build_reg_cache(etb);
etb->reg_cache = reg_cache->next;
-
- if (etm_ctx->capture_driver->init(etm_ctx) != ERROR_OK)
- {
- ERROR("ETM capture driver initialization failed");
- exit(-1);
- }
+ }
+
+ if (etm_ctx->capture_driver->init(etm_ctx) != ERROR_OK)
+ {
+ ERROR("ETM capture driver initialization failed");
+ exit(-1);
}
return reg_cache;
@@ -466,11 +466,17 @@ int etm_store_reg(reg_t *reg)
*/
extern etm_capture_driver_t etb_capture_driver;
extern etm_capture_driver_t etm_dummy_capture_driver;
+#if BUILD_OOCD_TRACE == 1
+extern etm_capture_driver_t oocd_trace_capture_driver;
+#endif
etm_capture_driver_t *etm_capture_drivers[] =
{
&etb_capture_driver,
&etm_dummy_capture_driver,
+#if BUILD_OOCD_TRACE == 1
+ &oocd_trace_capture_driver,
+#endif
NULL
};
@@ -753,6 +759,8 @@ int etmv1_analyze_trace(etm_context_t *ctx, struct command_context_s *cmd_ctx)
u32 next_pc = ctx->current_pc;
u32 old_data_index = ctx->data_index;
u32 old_data_half = ctx->data_half;
+ u32 old_index = ctx->pipe_index;
+ u32 cycles = 0;
if (ctx->trace_data[ctx->pipe_index].flags & ETMV1_TRIGGER_CYCLE)
{
@@ -762,6 +770,8 @@ int etmv1_analyze_trace(etm_context_t *ctx, struct command_context_s *cmd_ctx)
/* if we don't have a valid pc skip until we reach an indirect branch */
if ((!ctx->pc_ok) && (pipestat != STAT_BE))
{
+ if (pipestat == STAT_IE)
+ ctx->last_instruction = ctx->pipe_index;
ctx->pipe_index++;
continue;
}
@@ -800,27 +810,32 @@ int etmv1_analyze_trace(etm_context_t *ctx, struct command_context_s *cmd_ctx)
{
case 0x0: /* normal PC change */
next_pc = ctx->last_branch;
+ ctx->last_instruction = old_index;
break;
case 0x1: /* tracing enabled */
command_print(cmd_ctx, "--- tracing enabled at 0x%8.8x ---", ctx->last_branch);
ctx->current_pc = ctx->last_branch;
ctx->pipe_index++;
+ ctx->last_instruction = old_index;
continue;
break;
case 0x2: /* trace restarted after FIFO overflow */
command_print(cmd_ctx, "--- trace restarted after FIFO overflow at 0x%8.8x ---", ctx->last_branch);
ctx->current_pc = ctx->last_branch;
ctx->pipe_index++;
+ ctx->last_instruction = old_index;
continue;
break;
case 0x3: /* exit from debug state */
command_print(cmd_ctx, "--- exit from debug state at 0x%8.8x ---", ctx->last_branch);
ctx->current_pc = ctx->last_branch;
ctx->pipe_index++;
+ ctx->last_instruction = old_index;
continue;
break;
case 0x4: /* periodic synchronization point */
next_pc = ctx->last_branch;
+ ctx->last_instruction = old_index;
break;
default: /* reserved */
ERROR("BUG: branch reason code 0x%x is reserved", ctx->last_branch_reason);
@@ -839,6 +854,8 @@ int etmv1_analyze_trace(etm_context_t *ctx, struct command_context_s *cmd_ctx)
if (((ctx->last_branch >= 0x0) && (ctx->last_branch <= 0x20))
|| ((ctx->last_branch >= 0xffff0000) && (ctx->last_branch <= 0xffff0020)))
{
+ ctx->last_instruction = old_index;
+
if ((ctx->last_branch & 0xff) == 0x10)
{
command_print(cmd_ctx, "data abort");
@@ -871,6 +888,9 @@ int etmv1_analyze_trace(etm_context_t *ctx, struct command_context_s *cmd_ctx)
/* TODO: handle incomplete images */
}
}
+
+ cycles = old_index - ctx->last_instruction;
+ ctx->last_instruction = old_index;
}
if ((pipestat == STAT_ID) || (pipestat == STAT_BD))
@@ -963,8 +983,22 @@ int etmv1_analyze_trace(etm_context_t *ctx, struct command_context_s *cmd_ctx)
if ((pipestat != STAT_TD) && (pipestat != STAT_WT))
{
- command_print(cmd_ctx, "%s%s",
- instruction.text, (pipestat == STAT_IN) ? " (not executed)" : "");
+ char cycles_text[32] = "";
+
+ /* if the trace was captured with cycle accurate tracing enabled,
+ * output the number of cycles since the last executed instruction
+ */
+ if (ctx->tracemode & ETMV1_CYCLE_ACCURATE)
+ {
+ snprintf(cycles_text, 32, " (%i %s)",
+ cycles,
+ (cycles == 1) ? "cycle" : "cycles");
+ }
+
+ command_print(cmd_ctx, "%s%s%s",
+ instruction.text,
+ (pipestat == STAT_IN) ? " (not executed)" : "",
+ cycles_text);
ctx->current_pc = next_pc;
@@ -1265,6 +1299,7 @@ int handle_etm_config_command(struct command_context_s *cmd_ctx, char *cmd, char
}
etm_ctx->target = target;
+ etm_ctx->trigger_percent = 50;
etm_ctx->trace_data = NULL;
etm_ctx->trace_depth = 0;
etm_ctx->portmode = portmode;
@@ -1280,6 +1315,7 @@ int handle_etm_config_command(struct command_context_s *cmd_ctx, char *cmd, char
etm_ctx->last_ptr = 0x0;
etm_ctx->ptr_ok = 0x0;
etm_ctx->context_id = 0x0;
+ etm_ctx->last_instruction = 0;
arm7_9->etm_ctx = etm_ctx;
@@ -1288,6 +1324,78 @@ int handle_etm_config_command(struct command_context_s *cmd_ctx, char *cmd, char
return ERROR_OK;
}
+int handle_etm_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ target_t *target;
+ armv4_5_common_t *armv4_5;
+ arm7_9_common_t *arm7_9;
+ reg_t *etm_config_reg;
+ reg_t *etm_sys_config_reg;
+
+ int max_port_size;
+
+ target = get_current_target(cmd_ctx);
+
+ if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+ {
+ command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
+ return ERROR_OK;
+ }
+
+ if (!arm7_9->etm_ctx)
+ {
+ command_print(cmd_ctx, "current target doesn't have an ETM configured");
+ return ERROR_OK;
+ }
+
+ etm_config_reg = &arm7_9->etm_ctx->reg_cache->reg_list[ETM_CONFIG];
+ etm_sys_config_reg = &arm7_9->etm_ctx->reg_cache->reg_list[ETM_SYS_CONFIG];
+
+ etm_get_reg(etm_config_reg);
+ command_print(cmd_ctx, "pairs of address comparators: %i", buf_get_u32(etm_config_reg->value, 0, 4));
+ command_print(cmd_ctx, "pairs of data comparators: %i", buf_get_u32(etm_config_reg->value, 4, 4));
+ command_print(cmd_ctx, "memory map decoders: %i", buf_get_u32(etm_config_reg->value, 8, 4));
+ command_print(cmd_ctx, "number of counters: %i", buf_get_u32(etm_config_reg->value, 12, 4));
+ command_print(cmd_ctx, "sequencer %spresent",
+ (buf_get_u32(etm_config_reg->value, 16, 1) == 1) ? "" : "not ");
+ command_print(cmd_ctx, "number of ext. inputs: %i", buf_get_u32(etm_config_reg->value, 17, 3));
+ command_print(cmd_ctx, "number of ext. outputs: %i", buf_get_u32(etm_config_reg->value, 20, 3));
+ command_print(cmd_ctx, "FIFO full %spresent",
+ (buf_get_u32(etm_config_reg->value, 23, 1) == 1) ? "" : "not ");
+ command_print(cmd_ctx, "protocol version: %i", buf_get_u32(etm_config_reg->value, 28, 3));
+
+ etm_get_reg(etm_sys_config_reg);
+
+ switch (buf_get_u32(etm_sys_config_reg->value, 0, 3))
+ {
+ case 0:
+ max_port_size = 4;
+ break;
+ case 1:
+ max_port_size = 8;
+ break;
+ case 2:
+ max_port_size = 16;
+ break;
+ }
+ command_print(cmd_ctx, "max. port size: %i", max_port_size);
+
+ command_print(cmd_ctx, "half-rate clocking %ssupported",
+ (buf_get_u32(etm_sys_config_reg->value, 3, 1) == 1) ? "" : "not ");
+ command_print(cmd_ctx, "full-rate clocking %ssupported",
+ (buf_get_u32(etm_sys_config_reg->value, 4, 1) == 1) ? "" : "not ");
+ command_print(cmd_ctx, "normal trace format %ssupported",
+ (buf_get_u32(etm_sys_config_reg->value, 5, 1) == 1) ? "" : "not ");
+ command_print(cmd_ctx, "multiplex trace format %ssupported",
+ (buf_get_u32(etm_sys_config_reg->value, 6, 1) == 1) ? "" : "not ");
+ command_print(cmd_ctx, "demultiplex trace format %ssupported",
+ (buf_get_u32(etm_sys_config_reg->value, 7, 1) == 1) ? "" : "not ");
+ command_print(cmd_ctx, "FIFO full %ssupported",
+ (buf_get_u32(etm_sys_config_reg->value, 8, 1) == 1) ? "" : "not ");
+
+ return ERROR_OK;
+}
+
int handle_etm_status_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
target_t *target;
@@ -1540,6 +1648,46 @@ int handle_etm_load_command(struct command_context_s *cmd_ctx, char *cmd, char *
return ERROR_OK;
}
+int handle_etm_trigger_percent_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ target_t *target;
+ armv4_5_common_t *armv4_5;
+ arm7_9_common_t *arm7_9;
+ etm_context_t *etm_ctx;
+
+ target = get_current_target(cmd_ctx);
+
+ if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+ {
+ command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
+ return ERROR_OK;
+ }
+
+ if (!(etm_ctx = arm7_9->etm_ctx))
+ {
+ command_print(cmd_ctx, "current target doesn't have an ETM configured");
+ return ERROR_OK;
+ }
+
+ if (argc > 0)
+ {
+ u32 new_value = strtoul(args[0], NULL, 0);
+
+ if ((new_value < 2) || (new_value > 100))
+ {
+ command_print(cmd_ctx, "valid settings are 2% to 100%");
+ }
+ else
+ {
+ etm_ctx->trigger_percent = new_value;
+ }
+ }
+
+ command_print(cmd_ctx, "%i percent of the tracebuffer reserved for after the trigger", etm_ctx->trigger_percent);
+
+ return ERROR_OK;
+}
+
int handle_etm_start_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
target_t *target;
@@ -1660,6 +1808,11 @@ int etm_register_user_commands(struct command_context_s *cmd_ctx)
register_command(cmd_ctx, etm_cmd, "tracemode", handle_etm_tracemode_command,
COMMAND_EXEC, "configure trace mode <none|data|address|all> <context id bits> <cycle accurate> <branch output");
+ register_command(cmd_ctx, etm_cmd, "info", handle_etm_info_command,
+ COMMAND_EXEC, "display info about the current target's ETM");
+
+ register_command(cmd_ctx, etm_cmd, "trigger_percent <percent>", handle_etm_trigger_percent_command,
+ COMMAND_EXEC, "amount (<percent>) of trace buffer to be filled after the trigger occured");
register_command(cmd_ctx, etm_cmd, "status", handle_etm_status_command,
COMMAND_EXEC, "display current target's ETM status");
register_command(cmd_ctx, etm_cmd, "start", handle_etm_start_command,
diff --git a/src/target/etm.h b/src/target/etm.h
index f5a48c31..bcaf2513 100644
--- a/src/target/etm.h
+++ b/src/target/etm.h
@@ -145,6 +145,7 @@ typedef struct etm_context_s
reg_cache_t *reg_cache; /* ETM register cache */
etm_capture_driver_t *capture_driver; /* driver used to access ETM data */
void *capture_driver_priv; /* capture driver private data */
+ u32 trigger_percent; /* percent of trace buffer to be filled after the trigger */
trace_status_t capture_status; /* current state of capture run */
etmv1_trace_data_t *trace_data; /* trace data */
u32 trace_depth; /* number of trace cycles to be analyzed, 0 if no trace data available */
@@ -162,6 +163,7 @@ typedef struct etm_context_s
u32 last_ptr; /* address of the last data access */
u32 ptr_ok; /* whether last_ptr is valid */
u32 context_id; /* context ID of the code being traced */
+ u32 last_instruction; /* index of last instruction executed (to calculate cycle timings) */
} etm_context_t;
/* PIPESTAT values */
diff --git a/src/target/image.h b/src/target/image.h
index d741ab96..2e4ef968 100644
--- a/src/target/image.h
+++ b/src/target/image.h
@@ -34,7 +34,7 @@
#define IMAGE_MAX_ERROR_STRING (256)
#define IMAGE_MAX_SECTIONS (128)
-#define IMAGE_MEMORY_CACHE_SIZE (128)
+#define IMAGE_MEMORY_CACHE_SIZE (1024)
typedef enum image_type
{
diff --git a/src/target/oocd_trace.c b/src/target/oocd_trace.c
new file mode 100644
index 00000000..ff63820a
--- /dev/null
+++ b/src/target/oocd_trace.c
@@ -0,0 +1,429 @@
+/***************************************************************************
+ * Copyright (C) 2007 by Dominic Rath *
+ * Dominic.Rath@gmx.de *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+ * GNU General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ ***************************************************************************/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <string.h>
+#include <errno.h>
+
+#include "oocd_trace.h"
+#include "etm.h"
+
+#include "log.h"
+#include "types.h"
+#include "binarybuffer.h"
+#include "target.h"
+#include "register.h"
+#include "jtag.h"
+#include "arm7_9_common.h"
+
+#include <stdlib.h>
+
+int oocd_trace_read_reg(oocd_trace_t *oocd_trace, int reg, u32 *value)
+{
+ size_t bytes_written, bytes_read, bytes_to_read;
+ u8 cmd;
+
+ cmd = 0x10 | (reg & 0x7);
+ bytes_written = write(oocd_trace->tty_fd, &cmd, 1);
+
+ bytes_to_read = 4;
+ while (bytes_to_read > 0)
+ {
+ bytes_read = read(oocd_trace->tty_fd, ((u8*)value) + 4 - bytes_to_read, bytes_to_read);
+ bytes_to_read -= bytes_read;
+ }
+
+ DEBUG("reg #%i: 0x%8.8x\n", reg, *value);
+
+ return ERROR_OK;
+}
+
+int oocd_trace_write_reg(oocd_trace_t *oocd_trace, int reg, u32 value)
+{
+ size_t bytes_written;
+ u8 data[5];
+
+ data[0] = 0x18 | (reg & 0x7);
+ data[1] = value & 0xff;
+ data[2] = (value & 0xff00) >> 8;
+ data[3] = (value & 0xff0000) >> 16;
+ data[4] = (value & 0xff000000) >> 24;
+
+ bytes_written = write(oocd_trace->tty_fd, data, 5);
+ DEBUG("reg #%i: 0x%8.8x\n", reg, value);
+
+ return ERROR_OK;
+}
+
+int oocd_trace_read_memory(oocd_trace_t *oocd_trace, u8 *data, u32 address, u32 size)
+{
+ size_t bytes_written, bytes_read, bytes_to_read;
+ u8 cmd;
+ int i;
+
+ oocd_trace_write_reg(oocd_trace, OOCD_TRACE_ADDRESS, address);
+ oocd_trace_write_reg(oocd_trace, OOCD_TRACE_SDRAM_COUNTER, size);
+
+ cmd = 0x20;
+ bytes_written = write(oocd_trace->tty_fd, &cmd, 1);
+
+ bytes_to_read = size * 16;
+ while (bytes_to_read > 0)
+ {
+ if ((bytes_read = read(oocd_trace->tty_fd,
+ ((u8*)data) + (size * 16) - bytes_to_read, bytes_to_read)) < 0)
+ {
+ DEBUG("read() returned %i (%s)", bytes_read, strerror(errno));
+ }
+ else
+ bytes_to_read -= bytes_read;
+ }
+
+ return ERROR_OK;
+}
+
+int oocd_trace_init(etm_context_t *etm_ctx)
+{
+ u8 trash[256];
+ oocd_trace_t *oocd_trace = etm_ctx->capture_driver_priv;
+ size_t bytes_written, bytes_read, bytes_to_read;
+
+ oocd_trace->tty_fd = open(oocd_trace->tty, O_RDWR | O_NOCTTY | O_NONBLOCK);
+
+ if(oocd_trace->tty_fd < 0)
+ {
+ ERROR("can't open tty");
+ return ERROR_ETM_CAPTURE_INIT_FAILED;
+ }
+
+ /* clear input & output buffers, then switch to "blocking mode" */
+ tcflush(oocd_trace->tty_fd, TCOFLUSH);
+ tcflush(oocd_trace->tty_fd, TCIFLUSH);
+ fcntl(oocd_trace->tty_fd, F_SETFL, fcntl(oocd_trace->tty_fd, F_GETFL) & ~O_NONBLOCK);
+
+ tcgetattr(oocd_trace->tty_fd, &oocd_trace->oldtio); /* save current port settings */
+
+ bzero(&oocd_trace->newtio, sizeof(oocd_trace->newtio));
+ oocd_trace->newtio.c_cflag = CS8 | CLOCAL | CREAD | B2500000;
+
+ oocd_trace->newtio.c_iflag = IGNPAR | IGNBRK | IXON | IXOFF;
+ oocd_trace->newtio.c_oflag = 0;
+
+ /* set input mode (non-canonical, no echo,...) */
+ oocd_trace->newtio.c_lflag = 0;
+
+ cfmakeraw(&oocd_trace->newtio);
+ oocd_trace->newtio.c_cc[VTIME] = 1; /* inter-character timer used */
+ oocd_trace->newtio.c_cc[VMIN] = 0; /* blocking read until 0 chars received */
+
+ tcflush(oocd_trace->tty_fd, TCIFLUSH);
+ tcsetattr(oocd_trace->tty_fd, TCSANOW, &oocd_trace->newtio);
+
+ /* occasionally one bogus character is left in the input buffer
+ * read up any leftover characters to ensure communication is in sync */
+ while ((bytes_read = read(oocd_trace->tty_fd, trash, sizeof(trash))) > 0)
+ {
+ DEBUG("%i bytes read\n", bytes_read);
+ };
+
+ return ERROR_OK;
+}
+
+trace_status_t oocd_trace_status(etm_context_t *etm_ctx)
+{
+ oocd_trace_t *oocd_trace = etm_ctx->capture_driver_priv;
+ u32 status;
+
+ oocd_trace_read_reg(oocd_trace, OOCD_TRACE_STATUS, &status);
+
+ /* if tracing is currently idle, return this information */
+ if (etm_ctx->capture_status == TRACE_IDLE)
+ {
+ return etm_ctx->capture_status;
+ }
+ else if (etm_ctx->capture_status & TRACE_RUNNING)
+ {
+ /* check Full bit to identify an overflow */
+ if (status & 0x4)
+ etm_ctx->capture_status |= TRACE_OVERFLOWED;
+
+ /* check Triggered bit to identify trigger condition */
+ if (status & 0x2)
+ etm_ctx->capture_status |= TRACE_TRIGGERED;
+
+ if (status & 0x1)
+ {
+ etm_ctx->capture_status &= ~TRACE_RUNNING;
+ etm_ctx->capture_status |= TRACE_COMPLETED;
+ }
+ }
+
+ return etm_ctx->capture_status;
+}
+
+int oocd_trace_read_trace(etm_context_t *etm_ctx)
+{
+ oocd_trace_t *oocd_trace = etm_ctx->capture_driver_priv;
+ u32 status, address;
+ u32 first_frame = 0x0;
+ u32 num_frames = 1048576;
+ u8 *trace_data;
+ int i;
+
+ oocd_trace_read_reg(oocd_trace, OOCD_TRACE_STATUS, &status);
+ oocd_trace_read_reg(oocd_trace, OOCD_TRACE_ADDRESS, &address);
+
+ /* check if we overflowed, and adjust first frame of the trace accordingly
+ * if we didn't overflow, read only up to the frame that would be written next,
+ * i.e. don't read invalid entries
+ */
+ if (status & 0x4)
+ first_frame = address;
+ else
+ num_frames = address;
+
+ /* read data into temporary array for unpacking
+ * one frame from OpenOCD+trace corresponds to 16 trace cycles
+ */
+ trace_data = malloc(sizeof(u8) * num_frames * 16);
+ oocd_trace_read_memory(oocd_trace, trace_data, first_frame, num_frames);
+
+ if (etm_ctx->trace_depth > 0)
+ {
+ free(etm_ctx->trace_data);
+ }
+
+ etm_ctx->trace_depth = num_frames * 16;
+ etm_ctx->trace_data = malloc(sizeof(etmv1_trace_data_t) * etm_ctx->trace_depth);
+
+ for (i = 0; i < num_frames * 16; i++)
+ {
+ etm_ctx->trace_data[i].pipestat = (trace_data[i] & 0x7);
+ etm_ctx->trace_data[i].packet = (trace_data[i] & 0x78) >> 3;
+ etm_ctx->trace_data[i].flags = 0;
+
+ if ((trace_data[i] & 0x80) >> 7)
+ {
+ etm_ctx->trace_data[i].flags |= ETMV1_TRACESYNC_CYCLE;
+ }
+
+ if (etm_ctx->trace_data[i].pipestat == STAT_TR)
+ {
+ etm_ctx->trace_data[i].pipestat = etm_ctx->trace_data[i].packet & 0x7;
+ etm_ctx->trace_data[i].flags |= ETMV1_TRIGGER_CYCLE;
+ }
+ }
+
+ free(trace_data);
+
+ return ERROR_OK;
+}
+
+int oocd_trace_start_capture(etm_context_t *etm_ctx)
+{
+ oocd_trace_t *oocd_trace = etm_ctx->capture_driver_priv;
+ u32 control = 0x1; /* 0x1: enabled */
+ u32 trigger_count;
+
+ if (((etm_ctx->portmode & ETM_PORT_MODE_MASK) != ETM_PORT_NORMAL)
+ || ((etm_ctx->portmode & ETM_PORT_WIDTH_MASK) != ETM_PORT_4BIT))
+ {
+ DEBUG("OpenOCD+trace only supports normal 4-bit ETM mode");
+ return ERROR_ETM_PORTMODE_NOT_SUPPORTED;
+ }
+
+ if ((etm_ctx->portmode & ETM_PORT_CLOCK_MASK) == ETM_PORT_HALF_CLOCK)
+ {
+ control |= 0x2; /* half rate clock, capture at twice the clock rate */
+ }
+
+ /* OpenOCD+trace holds up to 16 million samples,
+ * but trigger counts is set in multiples of 16 */
+ trigger_count = (1048576 * etm_ctx->trigger_percent) / 100;
+
+ /* capturing always starts at address zero */
+ oocd_trace_write_reg(oocd_trace, OOCD_TRACE_ADDRESS, 0x0);
+ oocd_trace_write_reg(oocd_trace, OOCD_TRACE_TRIGGER_COUNTER, trigger_count);
+ oocd_trace_write_reg(oocd_trace, OOCD_TRACE_CONTROL, control);
+
+ /* we're starting a new trace, initialize capture status */
+ etm_ctx->capture_status = TRACE_RUNNING;
+
+ return ERROR_OK;
+}
+
+int oocd_trace_stop_capture(etm_context_t *etm_ctx)
+{
+ oocd_trace_t *oocd_trace = etm_ctx->capture_driver_priv;
+
+ /* trace stopped, just clear running flag, but preserve others */
+ etm_ctx->capture_status &= ~TRACE_RUNNING;
+
+ oocd_trace_write_reg(oocd_trace, OOCD_TRACE_CONTROL, 0x0);
+
+ return ERROR_OK;
+}
+
+etm_capture_driver_t oocd_trace_capture_driver =
+{
+ .name = "oocd_trace",
+ .register_commands = oocd_trace_register_commands,
+ .init = oocd_trace_init,
+ .status = oocd_trace_status,
+ .start_capture = oocd_trace_start_capture,
+ .stop_capture = oocd_trace_stop_capture,
+ .read_trace = oocd_trace_read_trace,
+};
+
+int handle_oocd_trace_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ target_t *target;
+ armv4_5_common_t *armv4_5;
+ arm7_9_common_t *arm7_9;
+
+ if (argc != 2)
+ {
+ ERROR("incomplete 'oocd_trace config <target> <tty>' command");
+ exit(-1);
+ }
+
+ target = get_current_target(cmd_ctx);
+
+ if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+ {
+ command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
+ return ERROR_OK;
+ }
+
+ if (arm7_9->etm_ctx)
+ {
+ oocd_trace_t *oocd_trace = malloc(sizeof(oocd_trace_t));
+
+ arm7_9->etm_ctx->capture_driver_priv = oocd_trace;
+ oocd_trace->etm_ctx = arm7_9->etm_ctx;
+
+ /* copy name of TTY device used to communicate with OpenOCD+trace */
+ oocd_trace->tty = strndup(args[1], 256);
+ }
+ else
+ {
+ ERROR("target has no ETM defined, OpenOCD+trace left unconfigured");
+ }
+
+ return ERROR_OK;
+}
+
+int handle_oocd_trace_status_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ target_t *target;
+ armv4_5_common_t *armv4_5;
+ arm7_9_common_t *arm7_9;
+ oocd_trace_t *oocd_trace;
+ u32 status;
+
+ target = get_current_target(cmd_ctx);
+
+ if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+ {
+ command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
+ return ERROR_OK;
+ }
+
+ if (!arm7_9->etm_ctx)
+ {
+ command_print(cmd_ctx, "current target doesn't have an ETM configured");
+ return ERROR_OK;
+ }
+
+ if (strcmp(arm7_9->etm_ctx->capture_driver->name, "oocd_trace") != 0)
+ {
+ command_print(cmd_ctx, "current target's ETM capture driver isn't 'oocd_trace'");
+ return ERROR_OK;
+ }
+
+ oocd_trace = (oocd_trace_t*)arm7_9->etm_ctx->capture_driver_priv;
+
+ oocd_trace_read_reg(oocd_trace, OOCD_TRACE_STATUS, &status);
+
+ if (status & 0x8)
+ command_print(cmd_ctx, "trace clock locked");
+ else
+ command_print(cmd_ctx, "no trace clock");
+
+ return ERROR_OK;
+}
+
+int handle_oocd_trace_resync_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ target_t *target;
+ armv4_5_common_t *armv4_5;
+ arm7_9_common_t *arm7_9;
+ oocd_trace_t *oocd_trace;
+ u32 status;
+ size_t bytes_written;
+ u8 cmd_array[1];
+
+ target = get_current_target(cmd_ctx);
+
+ if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+ {
+ command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
+ return ERROR_OK;
+ }
+
+ if (!arm7_9->etm_ctx)
+ {
+ command_print(cmd_ctx, "current target doesn't have an ETM configured");
+ return ERROR_OK;
+ }
+
+ if (strcmp(arm7_9->etm_ctx->capture_driver->name, "oocd_trace") != 0)
+ {
+ command_print(cmd_ctx, "current target's ETM capture driver isn't 'oocd_trace'");
+ return ERROR_OK;
+ }
+
+ oocd_trace = (oocd_trace_t*)arm7_9->etm_ctx->capture_driver_priv;
+
+ cmd_array[0] = 0xf0;
+
+ bytes_written = write(oocd_trace->tty_fd, cmd_array, 1);
+
+ command_print(cmd_ctx, "requesting traceclock resync");
+ DEBUG("resyncing traceclk pll");
+
+ return ERROR_OK;
+}
+
+int oocd_trace_register_commands(struct command_context_s *cmd_ctx)
+{
+ command_t *oocd_trace_cmd;
+
+ oocd_trace_cmd = register_command(cmd_ctx, NULL, "oocd_trace", NULL, COMMAND_ANY, "OpenOCD+trace");
+
+ register_command(cmd_ctx, oocd_trace_cmd, "config", handle_oocd_trace_config_command, COMMAND_CONFIG, NULL);
+
+ register_command(cmd_ctx, oocd_trace_cmd, "status", handle_oocd_trace_status_command, COMMAND_EXEC, "display OpenOCD+trace status");
+ register_command(cmd_ctx, oocd_trace_cmd, "resync", handle_oocd_trace_resync_command, COMMAND_EXEC, "resync OpenOCD+trace capture clock");
+
+ return ERROR_OK;
+}
diff --git a/src/target/oocd_trace.h b/src/target/oocd_trace.h
new file mode 100644
index 00000000..c80a7ced
--- /dev/null
+++ b/src/target/oocd_trace.h
@@ -0,0 +1,64 @@
+/***************************************************************************
+ * Copyright (C) 2007 by Dominic Rath *
+ * Dominic.Rath@gmx.de *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+ * GNU General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ ***************************************************************************/
+#ifndef OOCD_TRACE_H
+#define OOCD_TRACE_H
+
+#include "command.h"
+
+#include "etm.h"
+
+#include <termios.h>
+#include <unistd.h>
+
+/* registers */
+enum
+{
+ OOCD_TRACE_ID = 0x7,
+ OOCD_TRACE_ADDRESS = 0x0,
+ OOCD_TRACE_TRIGGER_COUNTER = 0x01,
+ OOCD_TRACE_CONTROL = 0x2,
+ OOCD_TRACE_STATUS = 0x3,
+ OOCD_TRACE_SDRAM_COUNTER = 0x4,
+};
+
+/* commands */
+enum
+{
+ OOCD_TRACE_NOP = 0x0,
+ OOCD_TRACE_READ_REG = 0x10,
+ OOCD_TRACE_WRITE_REG = 0x18,
+ OOCD_TRACE_READ_RAM = 0x20,
+/* OOCD_TRACE_WRITE_RAM = 0x28, */
+ OOCD_TRACE_RESYNC = 0xf0,
+};
+
+typedef struct oocd_trace_s
+{
+ etm_context_t *etm_ctx;
+ char *tty;
+ int tty_fd;
+ struct termios oldtio, newtio;
+} oocd_trace_t;
+
+extern etm_capture_driver_t oocd_trace_capture_driver;
+
+extern int oocd_trace_register_commands(struct command_context_s *cmd_ctx);
+
+#endif /* OOCD_TRACE_TRACE_H */
generated by cgit v1.2.3 (git 2.46.0) at 2024-12-23 17:46:08 +0000