#include "config.h"
#endif
+#include <string.h>
+
#include "arm7_9_common.h"
#include "etb.h"
+#include "etm.h"
#include "log.h"
#include "types.h"
#include <stdlib.h>
-char* etb_reg_list[] =
+static char* etb_reg_list[] =
{
"ETB_identification",
"ETB_ram_depth",
"ETB_control",
};
-int etb_reg_arch_type = -1;
-
-int etb_get_reg(reg_t *reg);
-int etb_set_reg(reg_t *reg, u32 value);
-int etb_set_reg_w_exec(reg_t *reg, u8 *buf);
+static int etb_reg_arch_type = -1;
-int etb_write_reg(reg_t *reg, u32 value);
-int etb_read_reg(reg_t *reg);
+static int etb_get_reg(reg_t *reg);
-int handle_arm7_9_etb_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int handle_arm7_9_etb_dump_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+static int handle_etb_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int etb_set_instr(etb_t *etb, u32 new_instr)
+static int etb_set_instr(etb_t *etb, u32 new_instr)
{
- jtag_device_t *device = jtag_get_device(etb->chain_pos);
-
- if (buf_get_u32(device->cur_instr, 0, device->ir_length) != new_instr)
+ jtag_tap_t *tap;
+ tap = etb->tap;
+ if (tap==NULL)
+ return ERROR_FAIL;
+
+ if (buf_get_u32(tap->cur_instr, 0, tap->ir_length) != new_instr)
{
scan_field_t field;
-
- field.device = etb->chain_pos;
- field.num_bits = device->ir_length;
+
+ field.tap = tap;
+ field.num_bits = tap->ir_length;
field.out_value = calloc(CEIL(field.num_bits, 8), 1);
buf_set_u32(field.out_value, 0, field.num_bits, new_instr);
field.out_mask = NULL;
field.in_check_mask = NULL;
field.in_handler = NULL;
field.in_handler_priv = NULL;
-
- jtag_add_ir_scan(1, &field, -1, NULL);
-
+
+ jtag_add_ir_scan(1, &field, TAP_INVALID);
+
free(field.out_value);
}
-
+
return ERROR_OK;
}
-int etb_scann(etb_t *etb, u32 new_scan_chain)
+static int etb_scann(etb_t *etb, u32 new_scan_chain)
{
if(etb->cur_scan_chain != new_scan_chain)
{
scan_field_t field;
-
- field.device = etb->chain_pos;
+
+ field.tap = etb->tap;
field.num_bits = 5;
field.out_value = calloc(CEIL(field.num_bits, 8), 1);
buf_set_u32(field.out_value, 0, field.num_bits, new_scan_chain);
field.in_check_mask = NULL;
field.in_handler = NULL;
field.in_handler_priv = NULL;
-
+
/* select INTEST instruction */
etb_set_instr(etb, 0x2);
- jtag_add_dr_scan(1, &field, -1, NULL);
-
+ jtag_add_dr_scan(1, &field, TAP_INVALID);
+
etb->cur_scan_chain = new_scan_chain;
-
+
free(field.out_value);
}
etb_reg_t *arch_info = NULL;
int num_regs = 9;
int i;
-
+
/* register a register arch-type for etm registers only once */
if (etb_reg_arch_type == -1)
etb_reg_arch_type = register_reg_arch_type(etb_get_reg, etb_set_reg_w_exec);
-
+
/* the actual registers are kept in two arrays */
reg_list = calloc(num_regs, sizeof(reg_t));
arch_info = calloc(num_regs, sizeof(etb_reg_t));
-
+
/* fill in values for the reg cache */
reg_cache->name = "etb registers";
reg_cache->next = NULL;
reg_cache->reg_list = reg_list;
reg_cache->num_regs = num_regs;
-
+
/* set up registers */
for (i = 0; i < num_regs; i++)
{
arch_info[i].addr = i;
arch_info[i].etb = etb;
}
-
+
return reg_cache;
}
-int etb_get_reg(reg_t *reg)
+static int etb_get_reg(reg_t *reg)
{
- if (etb_read_reg(reg) != ERROR_OK)
+ int retval;
+ if ((retval = etb_read_reg(reg)) != ERROR_OK)
{
- ERROR("BUG: error scheduling etm register read");
- exit(-1);
+ LOG_ERROR("BUG: error scheduling etm register read");
+ return retval;
}
-
- if (jtag_execute_queue() != ERROR_OK)
+
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ {
+ LOG_ERROR("register read failed");
+ return retval;
+ }
+
+ return ERROR_OK;
+}
+
+static int etb_read_ram(etb_t *etb, u32 *data, int num_frames)
+{
+ scan_field_t fields[3];
+ int i;
+
+ jtag_add_end_state(TAP_IDLE);
+ etb_scann(etb, 0x0);
+ etb_set_instr(etb, 0xc);
+
+ fields[0].tap = etb->tap;
+ fields[0].num_bits = 32;
+ fields[0].out_value = NULL;
+ fields[0].out_mask = NULL;
+ fields[0].in_value = NULL;
+ fields[0].in_check_value = NULL;
+ fields[0].in_check_mask = NULL;
+ fields[0].in_handler = NULL;
+ fields[0].in_handler_priv = NULL;
+
+ fields[1].tap = etb->tap;
+ fields[1].num_bits = 7;
+ fields[1].out_value = malloc(1);
+ buf_set_u32(fields[1].out_value, 0, 7, 4);
+ fields[1].out_mask = NULL;
+ fields[1].in_value = NULL;
+ fields[1].in_check_value = NULL;
+ fields[1].in_check_mask = NULL;
+ fields[1].in_handler = NULL;
+ fields[1].in_handler_priv = NULL;
+
+ fields[2].tap = etb->tap;
+ fields[2].num_bits = 1;
+ fields[2].out_value = malloc(1);
+ buf_set_u32(fields[2].out_value, 0, 1, 0);
+ fields[2].out_mask = NULL;
+ fields[2].in_value = NULL;
+ fields[2].in_check_value = NULL;
+ fields[2].in_check_mask = NULL;
+ fields[2].in_handler = NULL;
+ fields[2].in_handler_priv = NULL;
+
+ jtag_add_dr_scan(3, fields, TAP_INVALID);
+
+ fields[0].in_handler = buf_to_u32_handler;
+
+ for (i = 0; i < num_frames; i++)
{
- ERROR("register read failed");
+ /* ensure nR/W reamins set to read */
+ buf_set_u32(fields[2].out_value, 0, 1, 0);
+
+ /* address remains set to 0x4 (RAM data) until we read the last frame */
+ if (i < num_frames - 1)
+ buf_set_u32(fields[1].out_value, 0, 7, 4);
+ else
+ buf_set_u32(fields[1].out_value, 0, 7, 0);
+
+ fields[0].in_handler_priv = &data[i];
+ jtag_add_dr_scan(3, fields, TAP_INVALID);
}
-
+
+ jtag_execute_queue();
+
+ free(fields[1].out_value);
+ free(fields[2].out_value);
+
return ERROR_OK;
}
etb_reg_t *etb_reg = reg->arch_info;
u8 reg_addr = etb_reg->addr & 0x7f;
scan_field_t fields[3];
-
- DEBUG("%i", etb_reg->addr);
- jtag_add_end_state(TAP_RTI);
+ LOG_DEBUG("%i", etb_reg->addr);
+
+ jtag_add_end_state(TAP_IDLE);
etb_scann(etb_reg->etb, 0x0);
etb_set_instr(etb_reg->etb, 0xc);
-
- fields[0].device = etb_reg->etb->chain_pos;
+
+ fields[0].tap = etb_reg->etb->tap;
fields[0].num_bits = 32;
fields[0].out_value = reg->value;
fields[0].out_mask = NULL;
fields[0].in_check_mask = NULL;
fields[0].in_handler = NULL;
fields[0].in_handler_priv = NULL;
-
- fields[1].device = etb_reg->etb->chain_pos;
+
+ fields[1].tap = etb_reg->etb->tap;
fields[1].num_bits = 7;
fields[1].out_value = malloc(1);
buf_set_u32(fields[1].out_value, 0, 7, reg_addr);
fields[1].in_handler = NULL;
fields[1].in_handler_priv = NULL;
- fields[2].device = etb_reg->etb->chain_pos;
+ fields[2].tap = etb_reg->etb->tap;
fields[2].num_bits = 1;
fields[2].out_value = malloc(1);
buf_set_u32(fields[2].out_value, 0, 1, 0);
fields[2].in_check_mask = NULL;
fields[2].in_handler = NULL;
fields[2].in_handler_priv = NULL;
-
- jtag_add_dr_scan(3, fields, -1, NULL);
-
+
+ jtag_add_dr_scan(3, fields, TAP_INVALID);
+
/* read the identification register in the second run, to make sure we
* don't read the ETB data register twice, skipping every second entry
*/
buf_set_u32(fields[1].out_value, 0, 7, 0x0);
fields[0].in_value = reg->value;
- fields[0].in_check_value = check_value;
- fields[0].in_check_mask = check_mask;
-
- jtag_add_dr_scan(3, fields, -1, NULL);
+
+ jtag_set_check_value(fields+0, check_value, check_mask, NULL);
+
+ jtag_add_dr_scan(3, fields, TAP_INVALID);
free(fields[1].out_value);
free(fields[2].out_value);
-
+
return ERROR_OK;
}
int etb_read_reg(reg_t *reg)
{
- return etb_read_reg_w_check(reg, NULL, NULL);
+ return etb_read_reg_w_check(reg, NULL, NULL);
}
int etb_set_reg(reg_t *reg, u32 value)
{
- if (etb_write_reg(reg, value) != ERROR_OK)
+ int retval;
+ if ((retval = etb_write_reg(reg, value)) != ERROR_OK)
{
- ERROR("BUG: error scheduling etm register write");
- exit(-1);
+ LOG_ERROR("BUG: error scheduling etm register write");
+ return retval;
}
-
+
buf_set_u32(reg->value, 0, reg->size, value);
reg->valid = 1;
reg->dirty = 0;
-
+
return ERROR_OK;
}
int etb_set_reg_w_exec(reg_t *reg, u8 *buf)
{
+ int retval;
etb_set_reg(reg, buf_get_u32(buf, 0, reg->size));
-
- if (jtag_execute_queue() != ERROR_OK)
+
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
{
- ERROR("register write failed");
- exit(-1);
+ LOG_ERROR("register write failed");
+ return retval;
}
return ERROR_OK;
}
etb_reg_t *etb_reg = reg->arch_info;
u8 reg_addr = etb_reg->addr & 0x7f;
scan_field_t fields[3];
-
- DEBUG("%i: 0x%8.8x", etb_reg->addr, value);
-
- jtag_add_end_state(TAP_RTI);
+
+ LOG_DEBUG("%i: 0x%8.8x", etb_reg->addr, value);
+
+ jtag_add_end_state(TAP_IDLE);
etb_scann(etb_reg->etb, 0x0);
etb_set_instr(etb_reg->etb, 0xc);
-
- fields[0].device = etb_reg->etb->chain_pos;
+
+ fields[0].tap = etb_reg->etb->tap;
fields[0].num_bits = 32;
fields[0].out_value = malloc(4);
buf_set_u32(fields[0].out_value, 0, 32, value);
fields[0].in_check_mask = NULL;
fields[0].in_handler = NULL;
fields[0].in_handler_priv = NULL;
-
- fields[1].device = etb_reg->etb->chain_pos;
+
+ fields[1].tap = etb_reg->etb->tap;
fields[1].num_bits = 7;
fields[1].out_value = malloc(1);
buf_set_u32(fields[1].out_value, 0, 7, reg_addr);
fields[1].in_handler = NULL;
fields[1].in_handler_priv = NULL;
- fields[2].device = etb_reg->etb->chain_pos;
+ fields[2].tap = etb_reg->etb->tap;
fields[2].num_bits = 1;
fields[2].out_value = malloc(1);
buf_set_u32(fields[2].out_value, 0, 1, 1);
fields[2].in_check_mask = NULL;
fields[2].in_handler = NULL;
fields[2].in_handler_priv = NULL;
-
- jtag_add_dr_scan(3, fields, -1, NULL);
-
+
+ jtag_add_dr_scan(3, fields, TAP_INVALID);
+
free(fields[0].out_value);
free(fields[1].out_value);
free(fields[2].out_value);
-
+
return ERROR_OK;
}
return etb_write_reg(reg, buf_get_u32(reg->value, 0, reg->size));
}
-int etb_register_commands(struct command_context_s *cmd_ctx, command_t *arm7_9_cmd)
+static int etb_register_commands(struct command_context_s *cmd_ctx)
{
- register_command(cmd_ctx, arm7_9_cmd, "etb", handle_arm7_9_etb_command, COMMAND_CONFIG, NULL);
+ command_t *etb_cmd;
+
+ etb_cmd = register_command(cmd_ctx, NULL, "etb", NULL, COMMAND_ANY, "Embedded Trace Buffer");
- register_command(cmd_ctx, arm7_9_cmd, "etb_dump", handle_arm7_9_etb_dump_command, COMMAND_EXEC, "dump current ETB content");
+ register_command(cmd_ctx, etb_cmd, "config", handle_etb_config_command, COMMAND_CONFIG, NULL);
return ERROR_OK;
}
-int handle_arm7_9_etb_dump_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int handle_etb_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
- int retval;
- target_t *target = get_current_target(cmd_ctx);
+ target_t *target;
+ jtag_tap_t *tap;
armv4_5_common_t *armv4_5;
arm7_9_common_t *arm7_9;
- int i;
- int first_frame = 0;
- int last_frame;
+
+ if (argc != 2)
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ target = get_target_by_num(strtoul(args[0], NULL, 0));
+
+ if (!target)
+ {
+ LOG_ERROR("target number '%s' not defined", args[0]);
+ return ERROR_FAIL;
+ }
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;
+ return ERROR_FAIL;
+ }
+
+ tap = jtag_TapByString( args[1] );
+ if( tap == NULL ){
+ command_print(cmd_ctx, "Tap: %s does not exist", args[1] );
+ return ERROR_FAIL;
+ }
+
+
+ if (arm7_9->etm_ctx)
+ {
+ etb_t *etb = malloc(sizeof(etb_t));
+
+ arm7_9->etm_ctx->capture_driver_priv = etb;
+
+ etb->tap = tap;
+ etb->cur_scan_chain = ~0UL;
+ etb->reg_cache = NULL;
+ etb->ram_width = 0;
+ etb->ram_depth = 0;
+ }
+ else
+ {
+ LOG_ERROR("target has no ETM defined, ETB left unconfigured");
+ return ERROR_FAIL;
+ }
+
+ return ERROR_OK;
+}
+
+static int etb_init(etm_context_t *etm_ctx)
+{
+ etb_t *etb = etm_ctx->capture_driver_priv;
+
+ etb->etm_ctx = etm_ctx;
+
+ /* identify ETB RAM depth and width */
+ etb_read_reg(&etb->reg_cache->reg_list[ETB_RAM_DEPTH]);
+ etb_read_reg(&etb->reg_cache->reg_list[ETB_RAM_WIDTH]);
+ jtag_execute_queue();
+
+ etb->ram_depth = buf_get_u32(etb->reg_cache->reg_list[ETB_RAM_DEPTH].value, 0, 32);
+ etb->ram_width = buf_get_u32(etb->reg_cache->reg_list[ETB_RAM_WIDTH].value, 0, 32);
+
+ return ERROR_OK;
+}
+
+static trace_status_t etb_status(etm_context_t *etm_ctx)
+{
+ etb_t *etb = etm_ctx->capture_driver_priv;
+
+ etb->etm_ctx = etm_ctx;
+
+ /* 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)
+ {
+ reg_t *etb_status_reg = &etb->reg_cache->reg_list[ETB_STATUS];
+ int etb_timeout = 100;
+
+ /* trace is running, check the ETB status flags */
+ etb_get_reg(etb_status_reg);
+
+ /* check Full bit to identify an overflow */
+ if (buf_get_u32(etb_status_reg->value, 0, 1) == 1)
+ etm_ctx->capture_status |= TRACE_OVERFLOWED;
+
+ /* check Triggered bit to identify trigger condition */
+ if (buf_get_u32(etb_status_reg->value, 1, 1) == 1)
+ etm_ctx->capture_status |= TRACE_TRIGGERED;
+
+ /* check AcqComp to identify trace completion */
+ if (buf_get_u32(etb_status_reg->value, 2, 1) == 1)
+ {
+ while (etb_timeout-- && (buf_get_u32(etb_status_reg->value, 3, 1) == 0))
+ {
+ /* wait for data formatter idle */
+ etb_get_reg(etb_status_reg);
+ }
+
+ if (etb_timeout == 0)
+ {
+ LOG_ERROR("AcqComp set but DFEmpty won't go high, ETB status: 0x%x",
+ buf_get_u32(etb_status_reg->value, 0, etb_status_reg->size));
+ }
+
+ if (!(etm_ctx->capture_status && TRACE_TRIGGERED))
+ {
+ LOG_ERROR("trace completed, but no trigger condition detected");
+ }
+
+ etm_ctx->capture_status &= ~TRACE_RUNNING;
+ etm_ctx->capture_status |= TRACE_COMPLETED;
+ }
}
-
- if (!arm7_9->etb)
+
+ return etm_ctx->capture_status;
+}
+
+static int etb_read_trace(etm_context_t *etm_ctx)
+{
+ etb_t *etb = etm_ctx->capture_driver_priv;
+ int first_frame = 0;
+ int num_frames = etb->ram_depth;
+ u32 *trace_data = NULL;
+ int i, j;
+
+ etb_read_reg(&etb->reg_cache->reg_list[ETB_STATUS]);
+ etb_read_reg(&etb->reg_cache->reg_list[ETB_RAM_WRITE_POINTER]);
+ jtag_execute_queue();
+
+ /* 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 (buf_get_u32(etb->reg_cache->reg_list[ETB_STATUS].value, 0, 1))
{
- command_print(cmd_ctx, "no ETB configured for current target");
- return ERROR_OK;
+ first_frame = buf_get_u32(etb->reg_cache->reg_list[ETB_RAM_WRITE_POINTER].value, 0, 32);
}
-
- if (!(arm7_9->etb->RAM_depth && arm7_9->etb->RAM_width))
+ else
{
- /* identify ETB RAM depth and width */
- etb_read_reg(&arm7_9->etb->reg_cache->reg_list[ETB_RAM_DEPTH]);
- etb_read_reg(&arm7_9->etb->reg_cache->reg_list[ETB_RAM_WIDTH]);
- jtag_execute_queue();
-
- arm7_9->etb->RAM_depth = buf_get_u32(arm7_9->etb->reg_cache->reg_list[ETB_RAM_DEPTH].value, 0, 32);
- arm7_9->etb->RAM_width = buf_get_u32(arm7_9->etb->reg_cache->reg_list[ETB_RAM_WIDTH].value, 0, 32);
+ num_frames = buf_get_u32(etb->reg_cache->reg_list[ETB_RAM_WRITE_POINTER].value, 0, 32);
}
-
- etb_read_reg(&arm7_9->etb->reg_cache->reg_list[ETB_STATUS]);
- etb_read_reg(&arm7_9->etb->reg_cache->reg_list[ETB_RAM_WRITE_POINTER]);
-
- /* check if we overflowed, and adjust first and last frame of the trace accordingly */
- if (buf_get_u32(arm7_9->etb->reg_cache->reg_list[ETB_STATUS].value, 1, 1))
+
+ etb_write_reg(&etb->reg_cache->reg_list[ETB_RAM_READ_POINTER], first_frame);
+
+ /* read data into temporary array for unpacking */
+ trace_data = malloc(sizeof(u32) * num_frames);
+ etb_read_ram(etb, trace_data, num_frames);
+
+ if (etm_ctx->trace_depth > 0)
{
- first_frame = buf_get_u32(arm7_9->etb->reg_cache->reg_list[ETB_RAM_WRITE_POINTER].value, 0, 32);
- last_frame = first_frame - 1;
+ free(etm_ctx->trace_data);
}
+
+ if ((etm_ctx->portmode & ETM_PORT_WIDTH_MASK) == ETM_PORT_4BIT)
+ etm_ctx->trace_depth = num_frames * 3;
+ else if ((etm_ctx->portmode & ETM_PORT_WIDTH_MASK) == ETM_PORT_8BIT)
+ etm_ctx->trace_depth = num_frames * 2;
else
+ etm_ctx->trace_depth = num_frames;
+
+ etm_ctx->trace_data = malloc(sizeof(etmv1_trace_data_t) * etm_ctx->trace_depth);
+
+ for (i = 0, j = 0; i < num_frames; i++)
{
- last_frame = buf_get_u32(arm7_9->etb->reg_cache->reg_list[ETB_RAM_WRITE_POINTER].value, 0, 32) - 1;
+ if ((etm_ctx->portmode & ETM_PORT_WIDTH_MASK) == ETM_PORT_4BIT)
+ {
+ /* trace word j */
+ etm_ctx->trace_data[j].pipestat = trace_data[i] & 0x7;
+ etm_ctx->trace_data[j].packet = (trace_data[i] & 0x78) >> 3;
+ etm_ctx->trace_data[j].flags = 0;
+ if ((trace_data[i] & 0x80) >> 7)
+ {
+ etm_ctx->trace_data[j].flags |= ETMV1_TRACESYNC_CYCLE;
+ }
+ if (etm_ctx->trace_data[j].pipestat == STAT_TR)
+ {
+ etm_ctx->trace_data[j].pipestat = etm_ctx->trace_data[j].packet & 0x7;
+ etm_ctx->trace_data[j].flags |= ETMV1_TRIGGER_CYCLE;
+ }
+
+ /* trace word j+1 */
+ etm_ctx->trace_data[j+1].pipestat = (trace_data[i] & 0x100) >> 8;
+ etm_ctx->trace_data[j+1].packet = (trace_data[i] & 0x7800) >> 11;
+ etm_ctx->trace_data[j+1].flags = 0;
+ if ((trace_data[i] & 0x8000) >> 15)
+ {
+ etm_ctx->trace_data[j+1].flags |= ETMV1_TRACESYNC_CYCLE;
+ }
+ if (etm_ctx->trace_data[j+1].pipestat == STAT_TR)
+ {
+ etm_ctx->trace_data[j+1].pipestat = etm_ctx->trace_data[j+1].packet & 0x7;
+ etm_ctx->trace_data[j+1].flags |= ETMV1_TRIGGER_CYCLE;
+ }
+
+ /* trace word j+2 */
+ etm_ctx->trace_data[j+2].pipestat = (trace_data[i] & 0x10000) >> 16;
+ etm_ctx->trace_data[j+2].packet = (trace_data[i] & 0x780000) >> 19;
+ etm_ctx->trace_data[j+2].flags = 0;
+ if ((trace_data[i] & 0x800000) >> 23)
+ {
+ etm_ctx->trace_data[j+2].flags |= ETMV1_TRACESYNC_CYCLE;
+ }
+ if (etm_ctx->trace_data[j+2].pipestat == STAT_TR)
+ {
+ etm_ctx->trace_data[j+2].pipestat = etm_ctx->trace_data[j+2].packet & 0x7;
+ etm_ctx->trace_data[j+2].flags |= ETMV1_TRIGGER_CYCLE;
+ }
+
+ j += 3;
+ }
+ else if ((etm_ctx->portmode & ETM_PORT_WIDTH_MASK) == ETM_PORT_8BIT)
+ {
+ /* trace word j */
+ etm_ctx->trace_data[j].pipestat = trace_data[i] & 0x7;
+ etm_ctx->trace_data[j].packet = (trace_data[i] & 0x7f8) >> 3;
+ etm_ctx->trace_data[j].flags = 0;
+ if ((trace_data[i] & 0x800) >> 11)
+ {
+ etm_ctx->trace_data[j].flags |= ETMV1_TRACESYNC_CYCLE;
+ }
+ if (etm_ctx->trace_data[j].pipestat == STAT_TR)
+ {
+ etm_ctx->trace_data[j].pipestat = etm_ctx->trace_data[j].packet & 0x7;
+ etm_ctx->trace_data[j].flags |= ETMV1_TRIGGER_CYCLE;
+ }
+
+ /* trace word j+1 */
+ etm_ctx->trace_data[j+1].pipestat = (trace_data[i] & 0x7000) >> 12;
+ etm_ctx->trace_data[j+1].packet = (trace_data[i] & 0x7f8000) >> 15;
+ etm_ctx->trace_data[j+1].flags = 0;
+ if ((trace_data[i] & 0x800000) >> 23)
+ {
+ etm_ctx->trace_data[j+1].flags |= ETMV1_TRACESYNC_CYCLE;
+ }
+ if (etm_ctx->trace_data[j+1].pipestat == STAT_TR)
+ {
+ etm_ctx->trace_data[j+1].pipestat = etm_ctx->trace_data[j+1].packet & 0x7;
+ etm_ctx->trace_data[j+1].flags |= ETMV1_TRIGGER_CYCLE;
+ }
+
+ j += 2;
+ }
+ else
+ {
+ /* trace word j */
+ etm_ctx->trace_data[j].pipestat = trace_data[i] & 0x7;
+ etm_ctx->trace_data[j].packet = (trace_data[i] & 0x7fff8) >> 3;
+ etm_ctx->trace_data[j].flags = 0;
+ if ((trace_data[i] & 0x80000) >> 19)
+ {
+ etm_ctx->trace_data[j].flags |= ETMV1_TRACESYNC_CYCLE;
+ }
+ if (etm_ctx->trace_data[j].pipestat == STAT_TR)
+ {
+ etm_ctx->trace_data[j].pipestat = etm_ctx->trace_data[j].packet & 0x7;
+ etm_ctx->trace_data[j].flags |= ETMV1_TRIGGER_CYCLE;
+ }
+
+ j += 1;
+ }
}
-
- etb_write_reg(&arm7_9->etb->reg_cache->reg_list[ETB_RAM_READ_POINTER], first_frame);
- for (i = first_frame; (i % arm7_9->etb->RAM_depth) != last_frame; i++)
+
+ free(trace_data);
+
+ return ERROR_OK;
+}
+
+static int etb_start_capture(etm_context_t *etm_ctx)
+{
+ etb_t *etb = etm_ctx->capture_driver_priv;
+ u32 etb_ctrl_value = 0x1;
+ u32 trigger_count;
+
+ if ((etm_ctx->portmode & ETM_PORT_MODE_MASK) == ETM_PORT_DEMUXED)
{
- u32 trace_data;
- etb_read_reg(&arm7_9->etb->reg_cache->reg_list[ETB_RAM_DATA]);
- jtag_execute_queue();
- trace_data = buf_get_u32(arm7_9->etb->reg_cache->reg_list[ETB_RAM_DATA].value, 0, 32);
- command_print(cmd_ctx, "%8.8i: %i %2.2x %2.2x %2.2x (0x%8.8x)",
- i % 2048, (trace_data >> 19) & 1, (trace_data >> 11) & 0xff, (trace_data >> 3) & 0xff, trace_data & 0x7, trace_data);
+ if ((etm_ctx->portmode & ETM_PORT_WIDTH_MASK) != ETM_PORT_8BIT)
+ {
+ LOG_ERROR("ETB can't run in demultiplexed mode with a 4 or 16 bit port");
+ return ERROR_ETM_PORTMODE_NOT_SUPPORTED;
+ }
+ etb_ctrl_value |= 0x2;
}
-
+
+ if ((etm_ctx->portmode & ETM_PORT_MODE_MASK) == ETM_PORT_MUXED)
+ return ERROR_ETM_PORTMODE_NOT_SUPPORTED;
+
+ trigger_count = (etb->ram_depth * etm_ctx->trigger_percent) / 100;
+
+ etb_write_reg(&etb->reg_cache->reg_list[ETB_TRIGGER_COUNTER], trigger_count);
+ etb_write_reg(&etb->reg_cache->reg_list[ETB_RAM_WRITE_POINTER], 0x0);
+ etb_write_reg(&etb->reg_cache->reg_list[ETB_CTRL], etb_ctrl_value);
+ jtag_execute_queue();
+
+ /* we're starting a new trace, initialize capture status */
+ etm_ctx->capture_status = TRACE_RUNNING;
+
return ERROR_OK;
}
+
+static int etb_stop_capture(etm_context_t *etm_ctx)
+{
+ etb_t *etb = etm_ctx->capture_driver_priv;
+ reg_t *etb_ctrl_reg = &etb->reg_cache->reg_list[ETB_CTRL];
+
+ etb_write_reg(etb_ctrl_reg, 0x0);
+ jtag_execute_queue();
+
+ /* trace stopped, just clear running flag, but preserve others */
+ etm_ctx->capture_status &= ~TRACE_RUNNING;
+
+ return ERROR_OK;
+}
+
+etm_capture_driver_t etb_capture_driver =
+{
+ .name = "etb",
+ .register_commands = etb_register_commands,
+ .init = etb_init,
+ .status = etb_status,
+ .start_capture = etb_start_capture,
+ .stop_capture = etb_stop_capture,
+ .read_trace = etb_read_trace,
+};
Code Review / openocd.git / blobdiff