+// SPDX-License-Identifier: GPL-2.0-or-later
+
/***************************************************************************
* Copyright (C) 2010 by Michal Demin *
* based on usbprog.c and arm-jtag-ew.c *
* Several fixes by R. Diez in 2013. *
- * *
- * 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, see <http://www.gnu.org/licenses/>. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#undef DEBUG_SERIAL
/*#define DEBUG_SERIAL */
-static int buspirate_execute_queue(void);
+static int buspirate_execute_queue(struct jtag_command *cmd_queue);
static int buspirate_init(void);
static int buspirate_quit(void);
+static int buspirate_reset(int trst, int srst);
static void buspirate_end_state(tap_state_t state);
static void buspirate_state_move(void);
#define CMD_RAW_SPEED 0x60
#define CMD_RAW_MODE 0x80
+#define CMD_TAP_SHIFT_HEADER_LEN 3
+
/* raw-wire mode configuration */
#define CMD_RAW_CONFIG_HIZ 0x00
#define CMD_RAW_CONFIG_3V3 0x08
#define B1000000 0010010
#endif
+#define SHORT_TIMEOUT 1 /* Must be at least 1. */
+#define NORMAL_TIMEOUT 10
+
enum {
MODE_HIZ = 0,
MODE_JTAG = 1, /* push-pull outputs */
static int queued_retval;
static char swd_features;
-static const cc_t SHORT_TIMEOUT = 1; /* Must be at least 1. */
-static const cc_t NORMAL_TIMEOUT = 10;
-
static int buspirate_fd = -1;
static int buspirate_pinmode = MODE_JTAG_OD;
static int buspirate_baudrate = SERIAL_NORMAL;
struct scan_command *command);
static void buspirate_tap_make_space(int scan, int bits);
-static void buspirate_reset(int trst, int srst);
static void buspirate_set_feature(int, char, char);
static void buspirate_set_mode(int, char);
static void buspirate_set_speed(int, char);
static void buspirate_serial_close(int fd);
static void buspirate_print_buffer(uint8_t *buf, int size);
-static int buspirate_execute_queue(void)
+static int buspirate_execute_queue(struct jtag_command *cmd_queue)
{
/* currently processed command */
- struct jtag_command *cmd = jtag_command_queue;
+ struct jtag_command *cmd = cmd_queue;
int scan_size;
enum scan_type type;
uint8_t *buffer;
while (cmd) {
switch (cmd->type) {
case JTAG_RUNTEST:
- DEBUG_JTAG_IO("runtest %i cycles, end in %s",
+ LOG_DEBUG_IO("runtest %i cycles, end in %s",
cmd->cmd.runtest->num_cycles,
tap_state_name(cmd->cmd.runtest
->end_state));
->num_cycles);
break;
case JTAG_TLR_RESET:
- DEBUG_JTAG_IO("statemove end in %s",
+ LOG_DEBUG_IO("statemove end in %s",
tap_state_name(cmd->cmd.statemove
->end_state));
buspirate_end_state(cmd->cmd.statemove
buspirate_state_move();
break;
case JTAG_PATHMOVE:
- DEBUG_JTAG_IO("pathmove: %i states, end in %s",
+ LOG_DEBUG_IO("pathmove: %i states, end in %s",
cmd->cmd.pathmove->num_states,
tap_state_name(cmd->cmd.pathmove
->path[cmd->cmd.pathmove
cmd->cmd.pathmove->path);
break;
case JTAG_SCAN:
- DEBUG_JTAG_IO("scan end in %s",
+ LOG_DEBUG_IO("scan end in %s",
tap_state_name(cmd->cmd.scan
->end_state));
buffer, scan_size, cmd->cmd.scan);
break;
- case JTAG_RESET:
- DEBUG_JTAG_IO("reset trst: %i srst %i",
- cmd->cmd.reset->trst, cmd->cmd.reset->srst);
-
- /* flush buffers, so we can reset */
- buspirate_tap_execute();
-
- if (cmd->cmd.reset->trst == 1)
- tap_set_state(TAP_RESET);
- buspirate_reset(cmd->cmd.reset->trst,
- cmd->cmd.reset->srst);
- break;
case JTAG_SLEEP:
- DEBUG_JTAG_IO("sleep %i", cmd->cmd.sleep->us);
+ LOG_DEBUG_IO("sleep %" PRIu32, cmd->cmd.sleep->us);
buspirate_tap_execute();
jtag_sleep(cmd->cmd.sleep->us);
break;
case JTAG_STABLECLOCKS:
- DEBUG_JTAG_IO("stable clock %i cycles", cmd->cmd.stableclocks->num_cycles);
+ LOG_DEBUG_IO("stable clock %i cycles", cmd->cmd.stableclocks->num_cycles);
buspirate_stableclocks(cmd->cmd.stableclocks->num_cycles);
break;
default:
static int buspirate_init(void)
{
- if (buspirate_port == NULL) {
+ if (!buspirate_port) {
LOG_ERROR("You need to specify the serial port!");
return ERROR_JTAG_INIT_FAILED;
}
buspirate_serial_close(buspirate_fd);
- if (buspirate_port) {
- free(buspirate_port);
- buspirate_port = NULL;
- }
+ free(buspirate_port);
+ buspirate_port = NULL;
return ERROR_OK;
}
if (CMD_ARGC < 1)
return ERROR_COMMAND_SYNTAX_ERROR;
- if (buspirate_port == NULL)
+ if (!buspirate_port)
buspirate_port = strdup(CMD_ARGV[0]);
return ERROR_OK;
}
-static const struct command_registration buspirate_command_handlers[] = {
+static const struct command_registration buspirate_subcommand_handlers[] = {
{
- .name = "buspirate_adc",
+ .name = "adc",
.handler = &buspirate_handle_adc_command,
.mode = COMMAND_EXEC,
.help = "reads voltages on adc pins",
.usage = "",
},
{
- .name = "buspirate_vreg",
+ .name = "vreg",
.usage = "<1|0>",
.handler = &buspirate_handle_vreg_command,
.mode = COMMAND_CONFIG,
.help = "changes the state of voltage regulators",
},
{
- .name = "buspirate_pullup",
+ .name = "pullup",
.usage = "<1|0>",
.handler = &buspirate_handle_pullup_command,
.mode = COMMAND_CONFIG,
.help = "changes the state of pullup",
},
{
- .name = "buspirate_led",
+ .name = "led",
.usage = "<1|0>",
.handler = &buspirate_handle_led_command,
.mode = COMMAND_EXEC,
.help = "changes the state of led",
},
{
- .name = "buspirate_speed",
+ .name = "speed",
.usage = "<normal|fast>",
.handler = &buspirate_handle_speed_command,
.mode = COMMAND_CONFIG,
.help = "speed of the interface",
},
{
- .name = "buspirate_mode",
+ .name = "mode",
.usage = "<normal|open-drain>",
.handler = &buspirate_handle_mode_command,
.mode = COMMAND_CONFIG,
.help = "pin mode of the interface",
},
{
- .name = "buspirate_port",
+ .name = "port",
.usage = "/dev/ttyUSB0",
.handler = &buspirate_handle_port_command,
.mode = COMMAND_CONFIG,
COMMAND_REGISTRATION_DONE
};
+static const struct command_registration buspirate_command_handlers[] = {
+ {
+ .name = "buspirate",
+ .mode = COMMAND_ANY,
+ .help = "perform buspirate management",
+ .chain = buspirate_subcommand_handlers,
+ .usage = "",
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
static const struct swd_driver buspirate_swd = {
.init = buspirate_swd_init,
.switch_seq = buspirate_swd_switch_seq,
static const char * const buspirate_transports[] = { "jtag", "swd", NULL };
-struct jtag_interface buspirate_interface = {
- .name = "buspirate",
+static struct jtag_interface buspirate_interface = {
.execute_queue = buspirate_execute_queue,
- .commands = buspirate_command_handlers,
+};
+
+struct adapter_driver buspirate_adapter_driver = {
+ .name = "buspirate",
.transports = buspirate_transports,
- .swd = &buspirate_swd,
+ .commands = buspirate_command_handlers,
+
.init = buspirate_init,
- .quit = buspirate_quit
+ .quit = buspirate_quit,
+ .reset = buspirate_reset,
+
+ .jtag_ops = &buspirate_interface,
+ .swd_ops = &buspirate_swd,
};
/*************** jtag execute commands **********************/
for (i = 0; i < num_cycles; i++)
buspirate_tap_append(0, 0);
- DEBUG_JTAG_IO("runtest: cur_state %s end_state %s",
+ LOG_DEBUG_IO("runtest: cur_state %s end_state %s",
tap_state_name(tap_get_state()),
tap_state_name(tap_get_end_state()));
static int buspirate_tap_execute(void)
{
- static const int CMD_TAP_SHIFT_HEADER_LEN = 3;
-
uint8_t tmp[4096];
uint8_t *in_buf;
int i;
int bit_index = tap_chain_index % 8;
uint8_t bit = 1 << bit_index;
- if (0 == bit_index) {
+ if (bit_index == 0) {
/* Let's say that the TAP shift operation wants to shift 9 bits,
so we will be sending to the Bus Pirate a bit count of 9 but still
full 16 bits (2 bytes) of shift data.
/*************** wrapper functions *********************/
/* (1) assert or (0) deassert reset lines */
-static void buspirate_reset(int trst, int srst)
+static int buspirate_reset(int trst, int srst)
{
LOG_DEBUG("trst: %i, srst: %i", trst, srst);
buspirate_set_feature(buspirate_fd, FEATURE_SRST, ACTION_DISABLE);
else
buspirate_set_feature(buspirate_fd, FEATURE_SRST, ACTION_ENABLE);
+
+ return ERROR_OK;
}
static void buspirate_set_feature(int fd, char feat, char action)
tmp[0] = 0x00; /* exit OCD1 mode */
buspirate_serial_write(fd, tmp, 1);
usleep(10000);
- /* We ignore the return value here purposly, nothing we can do */
+ /* We ignore the return value here on purpose, nothing we can do */
buspirate_serial_read(fd, tmp, 5);
if (strncmp((char *)tmp, "BBIO1", 5) == 0) {
tmp[0] = 0x0F; /* reset BP */
/* set the serial port parameters */
fcntl(fd, F_SETFL, 0);
- if (0 != tcgetattr(fd, &t_opt))
+ if (tcgetattr(fd, &t_opt) != 0)
return -1;
- if (0 != cfsetispeed(&t_opt, baud))
+ if (cfsetispeed(&t_opt, baud) != 0)
return -1;
- if (0 != cfsetospeed(&t_opt, baud))
+ if (cfsetospeed(&t_opt, baud) != 0)
return -1;
t_opt.c_cflag |= (CLOCAL | CREAD);
/* Note that, in the past, TCSANOW was used below instead of TCSADRAIN,
and CMD_UART_SPEED did not work properly then, at least with
the Bus Pirate v3.5 (USB). */
- if (0 != tcsetattr(fd, TCSADRAIN, &t_opt)) {
+ if (tcsetattr(fd, TCSADRAIN, &t_opt) != 0) {
/* According to the Linux documentation, this is actually not enough
to detect errors, you need to call tcgetattr() and check that
all changes have been performed successfully. */
{
const uint8_t *sequence;
int sequence_len;
- uint8_t tmp[64];
+ uint32_t no_bytes, sequence_offset;
switch (seq) {
case LINE_RESET:
return ERROR_FAIL;
}
- /* FIXME: all above sequences fit into one pirate command for now
- * but it may cause trouble later
- */
+ no_bytes = sequence_len;
+ sequence_offset = 0;
+
+ while (no_bytes) {
+ uint8_t tmp[17];
+ uint32_t to_send;
+
+ to_send = no_bytes > 16 ? 16 : no_bytes;
- tmp[0] = 0x10 + ((sequence_len - 1) & 0x0F);
- memcpy(tmp + 1, sequence, sequence_len);
+ tmp[0] = 0x10 + ((to_send - 1) & 0x0F);
+ memcpy(tmp + 1, &sequence[sequence_offset], to_send);
+
+ buspirate_serial_write(buspirate_fd, tmp, to_send + 1);
+ buspirate_serial_read(buspirate_fd, tmp, to_send + 1);
- buspirate_serial_write(buspirate_fd, tmp, sequence_len + 1);
- buspirate_serial_read(buspirate_fd, tmp, sequence_len + 1);
+ no_bytes -= to_send;
+ sequence_offset += to_send;
+ }
return ERROR_OK;
}
tmp[5] = 0x07; /* write mode trn_1 */
tmp[6] = 0x07; /* write mode trn_2 */
- to_send = ((cmd & SWD_CMD_RnW) == 0) ? 7 : 5;
+ to_send = ((cmd & SWD_CMD_RNW) == 0) ? 7 : 5;
buspirate_serial_write(buspirate_fd, tmp, to_send);
/* read ack */
uint8_t tmp[16];
LOG_DEBUG("buspirate_swd_read_reg");
- assert(cmd & SWD_CMD_RnW);
+ assert(cmd & SWD_CMD_RNW);
if (queued_retval != ERROR_OK) {
LOG_DEBUG("Skip buspirate_swd_read_reg because queued_retval=%d", queued_retval);
LOG_DEBUG("%s %s %s reg %X = %08"PRIx32,
ack == SWD_ACK_OK ? "OK" : ack == SWD_ACK_WAIT ? "WAIT" : ack == SWD_ACK_FAULT ? "FAULT" : "JUNK",
- cmd & SWD_CMD_APnDP ? "AP" : "DP",
- cmd & SWD_CMD_RnW ? "read" : "write",
+ cmd & SWD_CMD_APNDP ? "AP" : "DP",
+ cmd & SWD_CMD_RNW ? "read" : "write",
(cmd & SWD_CMD_A32) >> 1,
data);
}
if (value)
*value = data;
- if (cmd & SWD_CMD_APnDP)
+ if (cmd & SWD_CMD_APNDP)
buspirate_swd_idle_clocks(ap_delay_clk);
return;
case SWD_ACK_WAIT:
uint8_t tmp[16];
LOG_DEBUG("buspirate_swd_write_reg");
- assert(!(cmd & SWD_CMD_RnW));
+ assert(!(cmd & SWD_CMD_RNW));
if (queued_retval != ERROR_OK) {
LOG_DEBUG("Skip buspirate_swd_write_reg because queued_retval=%d", queued_retval);
LOG_DEBUG("%s %s %s reg %X = %08"PRIx32,
ack == SWD_ACK_OK ? "OK" : ack == SWD_ACK_WAIT ? "WAIT" : ack == SWD_ACK_FAULT ? "FAULT" : "JUNK",
- cmd & SWD_CMD_APnDP ? "AP" : "DP",
- cmd & SWD_CMD_RnW ? "read" : "write",
+ cmd & SWD_CMD_APNDP ? "AP" : "DP",
+ cmd & SWD_CMD_RNW ? "read" : "write",
(cmd & SWD_CMD_A32) >> 1,
value);
switch (ack) {
case SWD_ACK_OK:
- if (cmd & SWD_CMD_APnDP)
+ if (cmd & SWD_CMD_APNDP)
buspirate_swd_idle_clocks(ap_delay_clk);
return;
case SWD_ACK_WAIT:
LOG_DEBUG("SWD queue return value: %02x", retval);
return retval;
}
-
-
Code Review / openocd.git / blobdiff