+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* Copyright (C) 2008 by Spencer Oliver *
* spen@spen-soft.co.uk *
- * *
- * 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., *
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
+#include <jtag/adapter.h>
#include <jtag/interface.h>
#include "bitbang.h"
/* parallel port cable description
*/
struct cable {
- char *name;
+ const char *name;
uint8_t TDO_MASK; /* status port bit containing current TDO value */
uint8_t TRST_MASK; /* data port bit for TRST */
uint8_t TMS_MASK; /* data port bit for TMS */
uint8_t LED_MASK; /* data port bit for LED */
};
-static struct cable cables[] = {
+static const struct cable cables[] = {
/* name tdo trst tms tck tdi srst o_inv i_inv init exit led */
{ "wiggler", 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x01, 0x80, 0x80, 0x80, 0x00 },
{ "wiggler2", 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x01, 0x80, 0x80, 0x00, 0x20 },
/* interface variables
*/
-static struct cable *cable;
+static const struct cable *cable;
static uint8_t dataport_value;
#if PARPORT_USE_PPDEV == 1
static unsigned long statusport;
#endif
-static int parport_read(void)
+static bb_value_t parport_read(void)
{
int data = 0;
#endif
if ((data ^ cable->INPUT_INVERT) & cable->TDO_MASK)
- return 1;
+ return BB_HIGH;
else
- return 0;
+ return BB_LOW;
}
static inline void parport_write_data(void)
#endif
}
-static void parport_write(int tck, int tms, int tdi)
+static int parport_write(int tck, int tms, int tdi)
{
int i = wait_states + 1;
while (i-- > 0)
parport_write_data();
+
+ return ERROR_OK;
}
/* (1) assert or (0) deassert reset lines */
-static void parport_reset(int trst, int srst)
+static int parport_reset(int trst, int srst)
{
LOG_DEBUG("trst: %i, srst: %i", trst, srst);
dataport_value &= ~cable->SRST_MASK;
parport_write_data();
+
+ return ERROR_OK;
}
/* turn LED on parport adapter on (1) or off (0) */
-static void parport_led(int on)
+static int parport_led(int on)
{
if (on)
dataport_value |= cable->LED_MASK;
dataport_value &= ~cable->LED_MASK;
parport_write_data();
+
+ return ERROR_OK;
}
static int parport_speed(int speed)
HANDLE h;
OSVERSIONINFO version;
- version.dwOSVersionInfoSize = sizeof version;
+ version.dwOSVersionInfoSize = sizeof(version);
if (!GetVersionEx(&version)) {
errno = EINVAL;
return -1;
static struct bitbang_interface parport_bitbang = {
.read = &parport_read,
.write = &parport_write,
- .reset = &parport_reset,
.blink = &parport_led,
};
static int parport_init(void)
{
- struct cable *cur_cable;
+ const struct cable *cur_cable;
#if PARPORT_USE_PPDEV == 1
char buffer[256];
#endif
cur_cable = cables;
- if (parport_cable == NULL) {
+ if (!parport_cable) {
parport_cable = strdup("wiggler");
LOG_WARNING("No parport cable specified, using default 'wiggler'");
}
#endif /* PARPORT_USE_PPDEV */
- parport_reset(0, 0);
- parport_write(0, 0, 0);
- parport_led(1);
+ if (parport_reset(0, 0) != ERROR_OK)
+ return ERROR_FAIL;
+ if (parport_write(0, 0, 0) != ERROR_OK)
+ return ERROR_FAIL;
+ if (parport_led(1) != ERROR_OK)
+ return ERROR_FAIL;
bitbang_interface = &parport_bitbang;
static int parport_quit(void)
{
- parport_led(0);
+ if (parport_led(0) != ERROR_OK)
+ return ERROR_FAIL;
if (parport_exit) {
dataport_value = cable->PORT_EXIT;
parport_write_data();
}
- if (parport_cable) {
- free(parport_cable);
- parport_cable = NULL;
- }
+ free(parport_cable);
+ parport_cable = NULL;
return ERROR_OK;
}
}
}
- command_print(CMD_CTX, "parport port = 0x%" PRIx16 "", parport_port);
+ command_print(CMD, "parport port = 0x%" PRIx16 "", parport_port);
return ERROR_OK;
}
uint32_t ns;
int retval = parse_u32(CMD_ARGV[0], &ns);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
if (ns == 0) {
}
parport_toggling_time_ns = ns;
- retval = jtag_get_speed(&wait_states);
+ retval = adapter_get_speed(&wait_states);
if (retval != ERROR_OK) {
- /* if jtag_get_speed fails then the clock_mode
+ /* if adapter_get_speed fails then the clock_mode
* has not been configured, this happens if parport_toggling_time is
* called before the adapter speed is set */
LOG_INFO("no parport speed set - defaulting to zero wait states");
}
}
- command_print(CMD_CTX, "parport toggling time = %" PRIu32 " ns",
+ command_print(CMD, "parport toggling time = %" PRIu32 " ns",
parport_toggling_time_ns);
return ERROR_OK;
}
-static const struct command_registration parport_command_handlers[] = {
+static const struct command_registration parport_subcommand_handlers[] = {
{
- .name = "parport_port",
+ .name = "port",
.handler = parport_handle_parport_port_command,
.mode = COMMAND_CONFIG,
.help = "Display the address of the I/O port (e.g. 0x378) "
.usage = "[port_number]",
},
{
- .name = "parport_cable",
+ .name = "cable",
.handler = parport_handle_parport_cable_command,
.mode = COMMAND_CONFIG,
.help = "Set the layout of the parallel port cable "
.usage = "[layout]",
},
{
- .name = "parport_write_on_exit",
+ .name = "write_on_exit",
.handler = parport_handle_write_on_exit_command,
.mode = COMMAND_CONFIG,
.help = "Configure the parallel driver to write "
.usage = "('on'|'off')",
},
{
- .name = "parport_toggling_time",
+ .name = "toggling_time",
.handler = parport_handle_parport_toggling_time_command,
.mode = COMMAND_CONFIG,
.help = "Displays or assigns how many nanoseconds it "
COMMAND_REGISTRATION_DONE
};
-struct jtag_interface parport_interface = {
- .name = "parport",
+static const struct command_registration parport_command_handlers[] = {
+ {
+ .name = "parport",
+ .mode = COMMAND_ANY,
+ .help = "perform parport management",
+ .chain = parport_subcommand_handlers,
+ .usage = "",
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
+static struct jtag_interface parport_interface = {
.supported = DEBUG_CAP_TMS_SEQ,
+ .execute_queue = bitbang_execute_queue,
+};
+
+struct adapter_driver parport_adapter_driver = {
+ .name = "parport",
+ .transports = jtag_only,
.commands = parport_command_handlers,
.init = parport_init,
.quit = parport_quit,
+ .reset = parport_reset,
+ .speed = parport_speed,
.khz = parport_khz,
.speed_div = parport_speed_div,
- .speed = parport_speed,
- .execute_queue = bitbang_execute_queue,
+
+ .jtag_ops = &parport_interface,
};
projects / fw / openocd / blobdiff