X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Ftarget%2Fetb.c;h=392c6ad7fe11febb3b366b8b84921e39f9cda080;hp=3cb225468d66a6a551f7a88e530120c6551f7742;hb=HEAD;hpb=1cfb2287a67c1f78b76583b2e5ed83ca3560b0d5

diff --git a/src/target/etb.c b/src/target/etb.c
index 3cb225468d..3b9004bb85 100644
--- a/src/target/etb.c
+++ b/src/target/etb.c
@@ -1,22 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
 /***************************************************************************
  *   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
@@ -26,9 +14,7 @@
 #include "etb.h"
 #include "register.h"
 
-
-static char* etb_reg_list[] =
-{
+static const char * const etb_reg_list[] = {
 	"ETB_identification",
 	"ETB_ram_depth",
 	"ETB_ram_width",
@@ -47,15 +33,14 @@ static int etb_set_instr(struct etb *etb, uint32_t new_instr)
 	struct jtag_tap *tap;
 
 	tap = etb->tap;
-	if (tap == NULL)
+	if (!tap)
 		return ERROR_FAIL;
 
-	if (buf_get_u32(tap->cur_instr, 0, tap->ir_length) != new_instr)
-	{
+	if (buf_get_u32(tap->cur_instr, 0, tap->ir_length) != new_instr) {
 		struct scan_field field;
 
 		field.num_bits = tap->ir_length;
-		void * t = calloc(DIV_ROUND_UP(field.num_bits, 8), 1);
+		void *t = calloc(DIV_ROUND_UP(field.num_bits, 8), 1);
 		field.out_value = t;
 		buf_set_u32(t, 0, field.num_bits, new_instr);
 
@@ -71,12 +56,11 @@ static int etb_set_instr(struct etb *etb, uint32_t new_instr)
 
 static int etb_scann(struct etb *etb, uint32_t new_scan_chain)
 {
-	if (etb->cur_scan_chain != new_scan_chain)
-	{
+	if (etb->cur_scan_chain != new_scan_chain) {
 		struct scan_field field;
 
 		field.num_bits = 5;
-		void * t = calloc(DIV_ROUND_UP(field.num_bits, 8), 1);
+		void *t = calloc(DIV_ROUND_UP(field.num_bits, 8), 1);
 		field.out_value = t;
 		buf_set_u32(t, 0, field.num_bits, new_scan_chain);
 
@@ -106,14 +90,14 @@ static int etb_get_reg(struct reg *reg)
 {
 	int retval;
 
-	if ((retval = etb_read_reg(reg)) != ERROR_OK)
-	{
+	retval = etb_read_reg(reg);
+	if (retval != ERROR_OK) {
 		LOG_ERROR("BUG: error scheduling ETB register read");
 		return retval;
 	}
 
-	if ((retval = jtag_execute_queue()) != ERROR_OK)
-	{
+	retval = jtag_execute_queue();
+	if (retval != ERROR_OK) {
 		LOG_ERROR("ETB register read failed");
 		return retval;
 	}
@@ -126,7 +110,7 @@ static const struct reg_arch_type etb_reg_type = {
 	.set = etb_set_reg_w_exec,
 };
 
-struct reg_cache* etb_build_reg_cache(struct etb *etb)
+struct reg_cache *etb_build_reg_cache(struct etb *etb)
 {
 	struct reg_cache *reg_cache = malloc(sizeof(struct reg_cache));
 	struct reg *reg_list = NULL;
@@ -145,12 +129,11 @@ struct reg_cache* etb_build_reg_cache(struct etb *etb)
 	reg_cache->num_regs = num_regs;
 
 	/* set up registers */
-	for (i = 0; i < num_regs; i++)
-	{
+	for (i = 0; i < num_regs; i++) {
 		reg_list[i].name = etb_reg_list[i];
 		reg_list[i].size = 32;
-		reg_list[i].dirty = 0;
-		reg_list[i].valid = 0;
+		reg_list[i].dirty = false;
+		reg_list[i].valid = false;
 		reg_list[i].value = calloc(1, 4);
 		reg_list[i].arch_info = &arch_info[i];
 		reg_list[i].type = &etb_reg_type;
@@ -169,7 +152,6 @@ static void etb_getbuf(jtag_callback_data_t arg)
 	*((uint32_t *)arg) = buf_get_u32(in, 0, 32);
 }
 
-
 static int etb_read_ram(struct etb *etb, uint32_t *data, int num_frames)
 {
 	struct scan_field fields[3];
@@ -183,22 +165,21 @@ static int etb_read_ram(struct etb *etb, uint32_t *data, int num_frames)
 	fields[0].in_value = NULL;
 
 	fields[1].num_bits = 7;
-	uint8_t temp1;
+	uint8_t temp1 = 0;
 	fields[1].out_value = &temp1;
 	buf_set_u32(&temp1, 0, 7, 4);
 	fields[1].in_value = NULL;
 
 	fields[2].num_bits = 1;
-	uint8_t temp2;
+	uint8_t temp2 = 0;
 	fields[2].out_value = &temp2;
 	buf_set_u32(&temp2, 0, 1, 0);
 	fields[2].in_value = NULL;
 
 	jtag_add_dr_scan(etb->tap, 3, fields, TAP_IDLE);
 
-	for (i = 0; i < num_frames; i++)
-	{
-		/* ensure nR/W reamins set to read */
+	for (i = 0; i < num_frames; i++) {
+		/* ensure nR/W remains set to read */
 		buf_set_u32(&temp2, 0, 1, 0);
 
 		/* address remains set to 0x4 (RAM data) until we read the last frame */
@@ -219,7 +200,7 @@ static int etb_read_ram(struct etb *etb, uint32_t *data, int num_frames)
 }
 
 static int etb_read_reg_w_check(struct reg *reg,
-		uint8_t* check_value, uint8_t* check_mask)
+	uint8_t *check_value, uint8_t *check_mask)
 {
 	struct etb_reg *etb_reg = reg->arch_info;
 	uint8_t reg_addr = etb_reg->addr & 0x7f;
@@ -237,7 +218,7 @@ static int etb_read_reg_w_check(struct reg *reg,
 	fields[0].check_mask = NULL;
 
 	fields[1].num_bits = 7;
-	uint8_t temp1;
+	uint8_t temp1 = 0;
 	fields[1].out_value = &temp1;
 	buf_set_u32(&temp1, 0, 7, reg_addr);
 	fields[1].in_value = NULL;
@@ -245,7 +226,7 @@ static int etb_read_reg_w_check(struct reg *reg,
 	fields[1].check_mask = NULL;
 
 	fields[2].num_bits = 1;
-	uint8_t temp2;
+	uint8_t temp2 = 0;
 	fields[2].out_value = &temp2;
 	buf_set_u32(&temp2, 0, 1, 0);
 	fields[2].in_value = NULL;
@@ -273,15 +254,15 @@ static int etb_set_reg(struct reg *reg, uint32_t value)
 {
 	int retval;
 
-	if ((retval = etb_write_reg(reg, value)) != ERROR_OK)
-	{
+	retval = etb_write_reg(reg, value);
+	if (retval != ERROR_OK) {
 		LOG_ERROR("BUG: error scheduling ETB register write");
 		return retval;
 	}
 
 	buf_set_u32(reg->value, 0, reg->size, value);
-	reg->valid = 1;
-	reg->dirty = 0;
+	reg->valid = true;
+	reg->dirty = false;
 
 	return ERROR_OK;
 }
@@ -292,8 +273,8 @@ static int etb_set_reg_w_exec(struct reg *reg, uint8_t *buf)
 
 	etb_set_reg(reg, buf_get_u32(buf, 0, reg->size));
 
-	if ((retval = jtag_execute_queue()) != ERROR_OK)
-	{
+	retval = jtag_execute_queue();
+	if (retval != ERROR_OK) {
 		LOG_ERROR("ETB: register write failed");
 		return retval;
 	}
@@ -304,20 +285,32 @@ static int etb_write_reg(struct reg *reg, uint32_t value)
 {
 	struct etb_reg *etb_reg = reg->arch_info;
 	uint8_t reg_addr = etb_reg->addr & 0x7f;
+	struct scan_field fields[3];
 
 	LOG_DEBUG("%i: 0x%8.8" PRIx32 "", (int)(etb_reg->addr), value);
 
 	etb_scann(etb_reg->etb, 0x0);
 	etb_set_instr(etb_reg->etb, 0xc);
 
+	fields[0].num_bits = 32;
 	uint8_t temp0[4];
-	buf_set_u32(&temp0, 0, 32, value);
+	fields[0].out_value = temp0;
+	buf_set_u32(temp0, 0, 32, value);
+	fields[0].in_value = NULL;
 
-	uint8_t temp1;
+	fields[1].num_bits = 7;
+	uint8_t temp1 = 0;
+	fields[1].out_value = &temp1;
 	buf_set_u32(&temp1, 0, 7, reg_addr);
+	fields[1].in_value = NULL;
 
-	uint8_t temp2;
+	fields[2].num_bits = 1;
+	uint8_t temp2 = 0;
+	fields[2].out_value = &temp2;
 	buf_set_u32(&temp2, 0, 1, 1);
+	fields[2].in_value = NULL;
+
+	jtag_add_dr_scan(etb_reg->etb->tap, 3, fields, TAP_IDLE);
 
 	return ERROR_OK;
 }
@@ -329,34 +322,28 @@ COMMAND_HANDLER(handle_etb_config_command)
 	struct arm *arm;
 
 	if (CMD_ARGC != 2)
-	{
 		return ERROR_COMMAND_SYNTAX_ERROR;
-	}
 
 	target = get_target(CMD_ARGV[0]);
 
-	if (!target)
-	{
+	if (!target) {
 		LOG_ERROR("ETB: target '%s' not defined", CMD_ARGV[0]);
 		return ERROR_FAIL;
 	}
 
 	arm = target_to_arm(target);
-	if (!is_arm(arm))
-	{
-		command_print(CMD_CTX, "ETB: '%s' isn't an ARM", CMD_ARGV[0]);
+	if (!is_arm(arm)) {
+		command_print(CMD, "ETB: '%s' isn't an ARM", CMD_ARGV[0]);
 		return ERROR_FAIL;
 	}
 
 	tap = jtag_tap_by_string(CMD_ARGV[1]);
-	if (tap == NULL)
-	{
-		command_print(CMD_CTX, "ETB: TAP %s does not exist", CMD_ARGV[1]);
+	if (!tap) {
+		command_print(CMD, "ETB: TAP %s does not exist", CMD_ARGV[1]);
 		return ERROR_FAIL;
 	}
 
-	if (arm->etm)
-	{
+	if (arm->etm) {
 		struct etb *etb = malloc(sizeof(struct etb));
 
 		arm->etm->capture_driver_priv = etb;
@@ -366,9 +353,7 @@ COMMAND_HANDLER(handle_etb_config_command)
 		etb->reg_cache = NULL;
 		etb->ram_width = 0;
 		etb->ram_depth = 0;
-	}
-	else
-	{
+	} else {
 		LOG_ERROR("ETM: target has no ETM defined, ETB left unconfigured");
 		return ERROR_FAIL;
 	}
@@ -385,19 +370,18 @@ COMMAND_HANDLER(handle_etb_trigger_percent_command)
 
 	target = get_current_target(CMD_CTX);
 	arm = target_to_arm(target);
-	if (!is_arm(arm))
-	{
-		command_print(CMD_CTX, "ETB: current target isn't an ARM");
+	if (!is_arm(arm)) {
+		command_print(CMD, "ETB: current target isn't an ARM");
 		return ERROR_FAIL;
 	}
 
 	etm = arm->etm;
 	if (!etm) {
-		command_print(CMD_CTX, "ETB: target has no ETM configured");
+		command_print(CMD, "ETB: target has no ETM configured");
 		return ERROR_FAIL;
 	}
 	if (etm->capture_driver != &etb_capture_driver) {
-		command_print(CMD_CTX, "ETB: target not using ETB");
+		command_print(CMD, "ETB: target not using ETB");
 		return ERROR_FAIL;
 	}
 	etb = arm->etm->capture_driver_priv;
@@ -407,14 +391,14 @@ COMMAND_HANDLER(handle_etb_trigger_percent_command)
 
 		COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], new_value);
 		if ((new_value < 2) || (new_value > 100))
-			command_print(CMD_CTX,
+			command_print(CMD,
 				"valid percentages are 2%% to 100%%");
 		else
 			etb->trigger_percent = (unsigned) new_value;
 	}
 
-	command_print(CMD_CTX, "%d percent of tracebuffer fills after trigger",
-			etb->trigger_percent);
+	command_print(CMD, "%d percent of tracebuffer fills after trigger",
+		etb->trigger_percent);
 
 	return ERROR_OK;
 }
@@ -444,8 +428,9 @@ static const struct command_registration etb_command_handlers[] = {
 	{
 		.name = "etb",
 		.mode = COMMAND_ANY,
-		.help = "Emebdded Trace Buffer command group",
+		.help = "Embedded Trace Buffer command group",
 		.chain = etb_config_command_handlers,
+		.usage = "",
 	},
 	COMMAND_REGISTRATION_DONE
 };
@@ -538,13 +523,13 @@ static int etb_read_trace(struct etm_context *etm_ctx)
 	 * i.e. don't read invalid entries
 	 */
 	if (buf_get_u32(etb->reg_cache->reg_list[ETB_STATUS].value, 0, 1))
-	{
-		first_frame = buf_get_u32(etb->reg_cache->reg_list[ETB_RAM_WRITE_POINTER].value, 0, 32);
-	}
+		first_frame = buf_get_u32(etb->reg_cache->reg_list[ETB_RAM_WRITE_POINTER].value,
+				0,
+				32);
 	else
-	{
-		num_frames = buf_get_u32(etb->reg_cache->reg_list[ETB_RAM_WRITE_POINTER].value, 0, 32);
-	}
+		num_frames = buf_get_u32(etb->reg_cache->reg_list[ETB_RAM_WRITE_POINTER].value,
+				0,
+				32);
 
 	etb_write_reg(&etb->reg_cache->reg_list[ETB_RAM_READ_POINTER], first_frame);
 
@@ -553,9 +538,7 @@ static int etb_read_trace(struct etm_context *etm_ctx)
 	etb_read_ram(etb, trace_data, num_frames);
 
 	if (etm_ctx->trace_depth > 0)
-	{
 		free(etm_ctx->trace_data);
-	}
 
 	if ((etm_ctx->control & ETM_PORT_WIDTH_MASK) == ETM_PORT_4BIT)
 		etm_ctx->trace_depth = num_frames * 3;
@@ -566,21 +549,17 @@ static int etb_read_trace(struct etm_context *etm_ctx)
 
 	etm_ctx->trace_data = malloc(sizeof(struct etmv1_trace_data) * etm_ctx->trace_depth);
 
-	for (i = 0, j = 0; i < num_frames; i++)
-	{
-		if ((etm_ctx->control & ETM_PORT_WIDTH_MASK) == ETM_PORT_4BIT)
-		{
+	for (i = 0, j = 0; i < num_frames; i++) {
+		if ((etm_ctx->control & 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;
+			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;
 			}
 
@@ -589,12 +568,10 @@ static int etb_read_trace(struct etm_context *etm_ctx)
 			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;
+			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;
 			}
 
@@ -603,30 +580,24 @@ static int etb_read_trace(struct etm_context *etm_ctx)
 			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;
+			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->control & ETM_PORT_WIDTH_MASK) == ETM_PORT_8BIT)
-		{
+		} else if ((etm_ctx->control & 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;
+			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;
 			}
 
@@ -635,30 +606,24 @@ static int etb_read_trace(struct etm_context *etm_ctx)
 			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;
+			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
-		{
+		} 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;
+			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;
 			}
 
@@ -677,10 +642,8 @@ static int etb_start_capture(struct etm_context *etm_ctx)
 	uint32_t etb_ctrl_value = 0x1;
 	uint32_t trigger_count;
 
-	if ((etm_ctx->control & ETM_PORT_MODE_MASK) == ETM_PORT_DEMUXED)
-	{
-		if ((etm_ctx->control & ETM_PORT_WIDTH_MASK) != ETM_PORT_8BIT)
-		{
+	if ((etm_ctx->control & ETM_PORT_MODE_MASK) == ETM_PORT_DEMUXED) {
+		if ((etm_ctx->control & 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;
 		}
@@ -719,8 +682,7 @@ static int etb_stop_capture(struct etm_context *etm_ctx)
 	return ERROR_OK;
 }
 
-struct etm_capture_driver etb_capture_driver =
-{
+struct etm_capture_driver etb_capture_driver = {
 	.name = "etb",
 	.commands = etb_command_handlers,
 	.init = etb_init,