X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Ftarget%2Fetb.c;h=3ad73977533e859c0acd5703f0c4c20fcb26dec6;hp=633c5aa657929657502f249fd38c23d7557d14fe;hb=42ef503d37b18d907da16d26e99167566d5aabd1;hpb=3c2eabd20f5182c53f0bfb0c6f2a9f2595434e87

diff --git a/src/target/etb.c b/src/target/etb.c
index 633c5aa657..3ad7397753 100644
--- a/src/target/etb.c
+++ b/src/target/etb.c
@@ -21,7 +21,7 @@
 #include "config.h"
 #endif
 
-#include "arm7_9_common.h"
+#include "armv4_5.h"
 #include "etb.h"
 
 
@@ -42,14 +42,12 @@ static int etb_reg_arch_type = -1;
 
 static int etb_get_reg(reg_t *reg);
 
-static int handle_etb_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-
 static int etb_set_instr(etb_t *etb, uint32_t new_instr)
 {
-	jtag_tap_t *tap;
+	struct jtag_tap *tap;
 
 	tap = etb->tap;
-	if (tap==NULL)
+	if (tap == NULL)
 		return ERROR_FAIL;
 
 	if (buf_get_u32(tap->cur_instr, 0, tap->ir_length) != new_instr)
@@ -96,6 +94,33 @@ static int etb_scann(etb_t *etb, uint32_t new_scan_chain)
 	return ERROR_OK;
 }
 
+static int etb_read_reg_w_check(reg_t *, uint8_t *, uint8_t *);
+static int etb_set_reg_w_exec(reg_t *, uint8_t *);
+
+static int etb_read_reg(reg_t *reg)
+{
+	return etb_read_reg_w_check(reg, NULL, NULL);
+}
+
+static int etb_get_reg(reg_t *reg)
+{
+	int retval;
+
+	if ((retval = etb_read_reg(reg)) != ERROR_OK)
+	{
+		LOG_ERROR("BUG: error scheduling ETB register read");
+		return retval;
+	}
+
+	if ((retval = jtag_execute_queue()) != ERROR_OK)
+	{
+		LOG_ERROR("ETB register read failed");
+		return retval;
+	}
+
+	return ERROR_OK;
+}
+
 reg_cache_t* etb_build_reg_cache(etb_t *etb)
 {
 	reg_cache_t *reg_cache = malloc(sizeof(reg_cache_t));
@@ -138,29 +163,11 @@ reg_cache_t* etb_build_reg_cache(etb_t *etb)
 	return reg_cache;
 }
 
-static int etb_get_reg(reg_t *reg)
+static void etb_getbuf(jtag_callback_data_t arg)
 {
-	int retval;
-
-	if ((retval = etb_read_reg(reg)) != ERROR_OK)
-	{
-		LOG_ERROR("BUG: error scheduling etm register read");
-		return retval;
-	}
-
-	if ((retval = jtag_execute_queue()) != ERROR_OK)
-	{
-		LOG_ERROR("register read failed");
-		return retval;
-	}
-
-	return ERROR_OK;
-}
+	uint8_t *in = (uint8_t *)arg;
 
-
-static void etb_getbuf(uint8_t *in)
-{
-	*((uint32_t *)in)=buf_get_u32(in, 0, 32);
+	*((uint32_t *)in) = buf_get_u32(in, 0, 32);
 }
 
 
@@ -203,10 +210,10 @@ static int etb_read_ram(etb_t *etb, uint32_t *data, int num_frames)
 		else
 			buf_set_u32(fields[1].out_value, 0, 7, 0);
 
-		fields[0].in_value = (uint8_t *)(data+i);
+		fields[0].in_value = (uint8_t *)(data + i);
 		jtag_add_dr_scan(3, fields, jtag_get_end_state());
 
-		jtag_add_callback(etb_getbuf, (uint8_t *)(data+i));
+		jtag_add_callback(etb_getbuf, (jtag_callback_data_t)(data + i));
 	}
 
 	jtag_execute_queue();
@@ -217,13 +224,14 @@ static int etb_read_ram(etb_t *etb, uint32_t *data, int num_frames)
 	return ERROR_OK;
 }
 
-int etb_read_reg_w_check(reg_t *reg, uint8_t* check_value, uint8_t* check_mask)
+static int etb_read_reg_w_check(reg_t *reg,
+		uint8_t* check_value, uint8_t* check_mask)
 {
 	etb_reg_t *etb_reg = reg->arch_info;
 	uint8_t reg_addr = etb_reg->addr & 0x7f;
 	scan_field_t fields[3];
 
-	LOG_DEBUG("%i", etb_reg->addr);
+	LOG_DEBUG("%i", (int)(etb_reg->addr));
 
 	jtag_set_end_state(TAP_IDLE);
 	etb_scann(etb_reg->etb, 0x0);
@@ -270,18 +278,15 @@ int etb_read_reg_w_check(reg_t *reg, uint8_t* check_value, uint8_t* check_mask)
 	return ERROR_OK;
 }
 
-int etb_read_reg(reg_t *reg)
-{
-	return etb_read_reg_w_check(reg, NULL, NULL);
-}
+static int etb_write_reg(reg_t *, uint32_t);
 
-int etb_set_reg(reg_t *reg, uint32_t value)
+static int etb_set_reg(reg_t *reg, uint32_t value)
 {
 	int retval;
 
 	if ((retval = etb_write_reg(reg, value)) != ERROR_OK)
 	{
-		LOG_ERROR("BUG: error scheduling etm register write");
+		LOG_ERROR("BUG: error scheduling ETB register write");
 		return retval;
 	}
 
@@ -292,7 +297,7 @@ int etb_set_reg(reg_t *reg, uint32_t value)
 	return ERROR_OK;
 }
 
-int etb_set_reg_w_exec(reg_t *reg, uint8_t *buf)
+static int etb_set_reg_w_exec(reg_t *reg, uint8_t *buf)
 {
 	int retval;
 
@@ -300,19 +305,19 @@ int etb_set_reg_w_exec(reg_t *reg, uint8_t *buf)
 
 	if ((retval = jtag_execute_queue()) != ERROR_OK)
 	{
-		LOG_ERROR("register write failed");
+		LOG_ERROR("ETB: register write failed");
 		return retval;
 	}
 	return ERROR_OK;
 }
 
-int etb_write_reg(reg_t *reg, uint32_t value)
+static int etb_write_reg(reg_t *reg, uint32_t value)
 {
 	etb_reg_t *etb_reg = reg->arch_info;
 	uint8_t reg_addr = etb_reg->addr & 0x7f;
 	scan_field_t fields[3];
 
-	LOG_DEBUG("%i: 0x%8.8x", etb_reg->addr, value);
+	LOG_DEBUG("%i: 0x%8.8" PRIx32 "", (int)(etb_reg->addr), value);
 
 	jtag_set_end_state(TAP_IDLE);
 	etb_scann(etb_reg->etb, 0x0);
@@ -344,28 +349,11 @@ int etb_write_reg(reg_t *reg, uint32_t value)
 	return ERROR_OK;
 }
 
-int etb_store_reg(reg_t *reg)
-{
-	return etb_write_reg(reg, buf_get_u32(reg->value, 0, reg->size));
-}
-
-static int etb_register_commands(struct command_context_s *cmd_ctx)
-{
-	command_t *etb_cmd;
-
-	etb_cmd = register_command(cmd_ctx, NULL, "etb", NULL, COMMAND_ANY, "Embedded Trace Buffer");
-
-	register_command(cmd_ctx, etb_cmd, "config", handle_etb_config_command, COMMAND_CONFIG, NULL);
-
-	return ERROR_OK;
-}
-
-static int handle_etb_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_etb_config_command)
 {
 	target_t *target;
-	jtag_tap_t *tap;
-	armv4_5_common_t *armv4_5;
-	arm7_9_common_t *arm7_9;
+	struct jtag_tap *tap;
+	struct arm *arm;
 
 	if (argc != 2)
 	{
@@ -376,28 +364,29 @@ static int handle_etb_config_command(struct command_context_s *cmd_ctx, char *cm
 
 	if (!target)
 	{
-		LOG_ERROR("target '%s' not defined", args[0]);
+		LOG_ERROR("ETB: target '%s' not defined", args[0]);
 		return ERROR_FAIL;
 	}
 
-	if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+	arm = target_to_arm(target);
+	if (!is_arm(arm))
 	{
-		command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
+		command_print(cmd_ctx, "ETB: '%s' isn't an ARM", args[0]);
 		return ERROR_FAIL;
 	}
 
-	tap = jtag_tap_by_string( args[1] );
+	tap = jtag_tap_by_string(args[1]);
 	if (tap == NULL)
 	{
-		command_print(cmd_ctx, "Tap: %s does not exist", args[1] );
+		command_print(cmd_ctx, "ETB: TAP %s does not exist", args[1]);
 		return ERROR_FAIL;
 	}
 
-	if (arm7_9->etm_ctx)
+	if (arm->etm)
 	{
 		etb_t *etb = malloc(sizeof(etb_t));
 
-		arm7_9->etm_ctx->capture_driver_priv = etb;
+		arm->etm->capture_driver_priv = etb;
 
 		etb->tap  = tap;
 		etb->cur_scan_chain = 0xffffffff;
@@ -407,13 +396,25 @@ static int handle_etb_config_command(struct command_context_s *cmd_ctx, char *cm
 	}
 	else
 	{
-		LOG_ERROR("target has no ETM defined, ETB left unconfigured");
+		LOG_ERROR("ETM: target has no ETM defined, ETB left unconfigured");
 		return ERROR_FAIL;
 	}
 
 	return ERROR_OK;
 }
 
+static int etb_register_commands(struct command_context_s *cmd_ctx)
+{
+	command_t *etb_cmd = register_command(cmd_ctx, NULL, "etb",
+			NULL, COMMAND_ANY, "Embedded Trace Buffer");
+
+	register_command(cmd_ctx, etb_cmd, "config",
+			handle_etb_config_command, COMMAND_CONFIG,
+			NULL);
+
+	return ERROR_OK;
+}
+
 static int etb_init(etm_context_t *etm_ctx)
 {
 	etb_t *etb = etm_ctx->capture_driver_priv;
@@ -434,56 +435,53 @@ static int etb_init(etm_context_t *etm_ctx)
 static trace_status_t etb_status(etm_context_t *etm_ctx)
 {
 	etb_t *etb = etm_ctx->capture_driver_priv;
+	reg_t *control = &etb->reg_cache->reg_list[ETB_CTRL];
+	reg_t *status = &etb->reg_cache->reg_list[ETB_STATUS];
+	trace_status_t retval = 0;
+	int etb_timeout = 100;
 
 	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;
+	/* read control and status registers */
+	etb_read_reg(control);
+	etb_read_reg(status);
+	jtag_execute_queue();
 
-		/* trace is running, check the ETB status flags */
-		etb_get_reg(etb_status_reg);
+	/* See if it's (still) active */
+	retval = buf_get_u32(control->value, 0, 1) ? TRACE_RUNNING : TRACE_IDLE;
 
-		/* 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 Full bit to identify wraparound/overflow */
+	if (buf_get_u32(status->value, 0, 1) == 1)
+		retval |= 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 Triggered bit to identify trigger condition */
+	if (buf_get_u32(status->value, 1, 1) == 1)
+		retval |= 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);
-			}
+	/* check AcqComp to see if trigger counter dropped to zero */
+	if (buf_get_u32(status->value, 2, 1) == 1) {
+		/* wait for DFEmpty */
+		while (etb_timeout-- && buf_get_u32(status->value, 3, 1) == 0)
+			etb_get_reg(status);
 
-			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 (etb_timeout == 0)
+			LOG_ERROR("ETB:  DFEmpty won't go high, status 0x%02x",
+				(unsigned) buf_get_u32(status->value, 0, 4));
 
-			if (!(etm_ctx->capture_status && TRACE_TRIGGERED))
-			{
-				LOG_ERROR("trace completed, but no trigger condition detected");
-			}
+		if (!(etm_ctx->capture_status & TRACE_TRIGGERED))
+			LOG_WARNING("ETB: trace complete without triggering?");
 
-			etm_ctx->capture_status &= ~TRACE_RUNNING;
-			etm_ctx->capture_status |= TRACE_COMPLETED;
-		}
+		retval |= TRACE_COMPLETED;
 	}
 
-	return etm_ctx->capture_status;
+	/* NOTE: using a trigger is optional; and at least ETB11 has a mode
+	 * where it can ignore the trigger counter.
+	 */
+
+	/* update recorded state */
+	etm_ctx->capture_status = retval;
+
+	return retval;
 }
 
 static int etb_read_trace(etm_context_t *etm_ctx)
@@ -549,32 +547,32 @@ static int etb_read_trace(etm_context_t *etm_ctx)
 				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;
+			/* 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;
+				etm_ctx->trace_data[j + 1].flags |= ETMV1_TRACESYNC_CYCLE;
 			}
-			if (etm_ctx->trace_data[j+1].pipestat == STAT_TR)
+			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;
+				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;
+			/* 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;
+				etm_ctx->trace_data[j + 2].flags |= ETMV1_TRACESYNC_CYCLE;
 			}
-			if (etm_ctx->trace_data[j+2].pipestat == STAT_TR)
+			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;
+				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;
@@ -595,18 +593,18 @@ static int etb_read_trace(etm_context_t *etm_ctx)
 				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;
+			/* 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;
+				etm_ctx->trace_data[j + 1].flags |= ETMV1_TRACESYNC_CYCLE;
 			}
-			if (etm_ctx->trace_data[j+1].pipestat == STAT_TR)
+			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;
+				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;
@@ -652,8 +650,10 @@ static int etb_start_capture(etm_context_t *etm_ctx)
 		etb_ctrl_value |= 0x2;
 	}
 
-	if ((etm_ctx->portmode & ETM_PORT_MODE_MASK) == ETM_PORT_MUXED)
+	if ((etm_ctx->portmode & ETM_PORT_MODE_MASK) == ETM_PORT_MUXED) {
+		LOG_ERROR("ETB: can't run in multiplexed mode");
 		return ERROR_ETM_PORTMODE_NOT_SUPPORTED;
+	}
 
 	trigger_count = (etb->ram_depth * etm_ctx->trigger_percent) / 100;