jtag/drivers: add linuxgpiod driver
New adapter driver for GPIO bitbanging over Linux GPIO descriptors through the library libgpiod. On Debian based distribution, the package libgpiod-dev is required for build. Change-Id: I1ce1a4f1ca79096d6d476b01b523c8c10f2cac07 Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com> Reviewed-on: http://openocd.zylin.com/5559 Tested-by: jenkins
This commit is contained in:
Antonio Borneo
parent
ee86f3ef92
commit
93be480c90
17
configure.ac
17
configure.ac
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@ -137,6 +137,9 @@ m4_define([LIBFTDI_ADAPTERS],
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[[presto], [ASIX Presto Adapter], [PRESTO]],
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[[openjtag], [OpenJTAG Adapter], [OPENJTAG]]])
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m4_define([LIBGPIOD_ADAPTERS],
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[[[linuxgpiod], [Linux GPIO bitbang through libgpiod], [LINUXGPIOD]]])
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m4_define([LIBJAYLINK_ADAPTERS],
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[[[jlink], [SEGGER J-Link Programmer], [JLINK]]])
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@ -241,6 +244,7 @@ AC_ARG_ADAPTERS([
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HIDAPI_ADAPTERS,
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HIDAPI_USB1_ADAPTERS,
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LIBFTDI_ADAPTERS,
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LIBGPIOD_ADAPTERS,
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LIBJAYLINK_ADAPTERS
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],[auto])
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@ -335,6 +339,10 @@ AS_CASE([$host_os],
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AC_MSG_ERROR([sysfsgpio is only available on linux])
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])
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AS_IF([test "x$enable_linuxgpiod" = "xyes"], [
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AC_MSG_ERROR([linuxgpiod is only available on linux])
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])
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AS_IF([test "x$build_xlnx_pcie_xvc" = "xyes"], [
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AC_MSG_ERROR([xlnx_pcie_xvc is only available on linux])
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])
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@ -643,6 +651,8 @@ PKG_CHECK_MODULES([LIBFTDI], [libftdi1], [use_libftdi=yes], [
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PKG_CHECK_MODULES([LIBFTDI], [libftdi], [use_libftdi=yes], [use_libftdi=no])
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])
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PKG_CHECK_MODULES([LIBGPIOD], [libgpiod], [use_libgpiod=yes], [use_libgpiod=no])
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PKG_CHECK_MODULES([LIBJAYLINK], [libjaylink >= 0.2],
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[use_libjaylink=yes], [use_libjaylink=no])
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@ -672,6 +682,7 @@ PROCESS_ADAPTERS([USB0_ADAPTERS], ["x$use_libusb0" = "xyes"], [libusb-0.1])
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PROCESS_ADAPTERS([HIDAPI_ADAPTERS], ["x$use_hidapi" = "xyes"], [hidapi])
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PROCESS_ADAPTERS([HIDAPI_USB1_ADAPTERS], ["x$use_hidapi" = "xyes" -a "x$use_libusb1" = "xyes"], [hidapi and libusb-1.x])
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PROCESS_ADAPTERS([LIBFTDI_ADAPTERS], ["x$use_libftdi" = "xyes"], [libftdi])
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PROCESS_ADAPTERS([LIBGPIOD_ADAPTERS], ["x$use_libgpiod" = "xyes"], [libgpiod])
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PROCESS_ADAPTERS([LIBJAYLINK_ADAPTERS], ["x$use_internal_libjaylink" = "xyes" -o "x$use_libjaylink" = "xyes"], [libjaylink-0.2])
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AS_IF([test "x$build_openjtag" = "xyes"], [
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@ -681,6 +692,10 @@ AS_IF([test "x$build_openjtag" = "xyes"], [
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])
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])
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AS_IF([test "x$enable_linuxgpiod" != "xno"], [
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build_bitbang=yes
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])
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AS_IF([test "x$enable_stlink" != "xno" -o "x$enable_ti_icdi" != "xno"], [
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AC_DEFINE([BUILD_HLADAPTER], [1], [1 if you want the High Level JTAG driver.])
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AM_CONDITIONAL([HLADAPTER], [true])
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@ -736,6 +751,7 @@ AM_CONDITIONAL([IS_WIN32], [test "x$is_win32" = "xyes"])
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AM_CONDITIONAL([IS_DARWIN], [test "x$is_darwin" = "xyes"])
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AM_CONDITIONAL([BITQ], [test "x$build_bitq" = "xyes"])
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AM_CONDITIONAL([USE_LIBFTDI], [test "x$use_libftdi" = "xyes"])
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AM_CONDITIONAL([USE_LIBGPIOD], [test "x$use_libgpiod" = "xyes"])
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AM_CONDITIONAL([USE_HIDAPI], [test "x$use_hidapi" = "xyes"])
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AM_CONDITIONAL([USE_LIBJAYLINK], [test "x$use_libjaylink" = "xyes"])
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AM_CONDITIONAL([RSHIM], [test "x$build_rshim" = "xyes"])
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@ -807,6 +823,7 @@ echo OpenOCD configuration summary
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echo --------------------------------------------------
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m4_foreach([adapter], [USB1_ADAPTERS, USB0_ADAPTERS,
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HIDAPI_ADAPTERS, HIDAPI_USB1_ADAPTERS, LIBFTDI_ADAPTERS,
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LIBGPIOD_ADAPTERS,
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LIBJAYLINK_ADAPTERS, PCIE_ADAPTERS],
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[s=m4_format(["%-40s"], ADAPTER_DESC([adapter]))
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AS_CASE([$ADAPTER_VAR([adapter])],
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@ -38,6 +38,11 @@ if USE_LIBFTDI
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%C%_libocdjtagdrivers_la_LIBADD += $(LIBFTDI_LIBS)
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endif
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if USE_LIBGPIOD
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%C%_libocdjtagdrivers_la_CPPFLAGS += $(LIBGPIOD_CFLAGS)
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%C%_libocdjtagdrivers_la_LIBADD += $(LIBGPIOD_LIBS)
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endif
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if USE_HIDAPI
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%C%_libocdjtagdrivers_la_CPPFLAGS += $(HIDAPI_CFLAGS)
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%C%_libocdjtagdrivers_la_LIBADD += $(HIDAPI_LIBS)
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@ -71,6 +76,9 @@ endif
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if FTDI
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DRIVERFILES += %D%/ftdi.c %D%/mpsse.c
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endif
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if LINUXGPIOD
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DRIVERFILES += %D%/linuxgpiod.c
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endif
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if JTAG_VPI
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DRIVERFILES += %D%/jtag_vpi.c
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endif
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@ -0,0 +1,595 @@
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Bitbang driver for Linux GPIO descriptors through libgpiod
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* Copyright (C) 2020 Antonio Borneo <borneo.antonio@gmail.com>
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*
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* Largely based on sysfsgpio driver
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* Copyright (C) 2012 by Creative Product Design, marc @ cpdesign.com.au
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* Copyright (C) 2014 by Jean-Christian de Rivaz <jc@eclis.ch>
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* Copyright (C) 2014 by Paul Fertser <fercerpav@gmail.com>
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gpiod.h>
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#include <jtag/interface.h>
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#include <transport/transport.h>
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#include "bitbang.h"
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/* gpio numbers for each gpio. Negative values are invalid */
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static int tck_gpio = -1;
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static int tms_gpio = -1;
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static int tdi_gpio = -1;
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static int tdo_gpio = -1;
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static int trst_gpio = -1;
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static int srst_gpio = -1;
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static int swclk_gpio = -1;
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static int swdio_gpio = -1;
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static int gpiochip = -1;
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static struct gpiod_chip *gpiod_chip;
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static struct gpiod_line *gpiod_tck;
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static struct gpiod_line *gpiod_tms;
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static struct gpiod_line *gpiod_tdi;
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static struct gpiod_line *gpiod_tdo;
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static struct gpiod_line *gpiod_trst;
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static struct gpiod_line *gpiod_swclk;
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static struct gpiod_line *gpiod_swdio;
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static struct gpiod_line *gpiod_srst;
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static int last_swclk;
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static int last_swdio;
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static bool last_stored;
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static bool swdio_input;
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/* Bitbang interface read of TDO */
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static bb_value_t linuxgpiod_read(void)
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{
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int retval;
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retval = gpiod_line_get_value(gpiod_tdo);
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if (retval < 0) {
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LOG_WARNING("reading tdo failed");
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return 0;
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}
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return retval ? BB_HIGH : BB_LOW;
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}
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/*
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* Bitbang interface write of TCK, TMS, TDI
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*
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* Seeing as this is the only function where the outputs are changed,
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* we can cache the old value to avoid needlessly writing it.
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*/
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static int linuxgpiod_write(int tck, int tms, int tdi)
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{
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static int last_tck;
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static int last_tms;
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static int last_tdi;
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static int first_time;
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int retval;
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if (!first_time) {
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last_tck = !tck;
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last_tms = !tms;
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last_tdi = !tdi;
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first_time = 1;
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}
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if (tdi != last_tdi) {
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retval = gpiod_line_set_value(gpiod_tdi, tdi);
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if (retval < 0)
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LOG_WARNING("writing tdi failed");
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}
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if (tms != last_tms) {
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retval = gpiod_line_set_value(gpiod_tms, tms);
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if (retval < 0)
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LOG_WARNING("writing tms failed");
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}
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/* write clk last */
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if (tck != last_tck) {
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retval = gpiod_line_set_value(gpiod_tck, tck);
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if (retval < 0)
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LOG_WARNING("writing tck failed");
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}
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last_tdi = tdi;
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last_tms = tms;
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last_tck = tck;
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return ERROR_OK;
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}
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static int linuxgpiod_swdio_read(void)
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{
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int retval;
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retval = gpiod_line_get_value(gpiod_swdio);
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if (retval < 0) {
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LOG_WARNING("Fail read swdio");
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return 0;
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}
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return retval;
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}
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static void linuxgpiod_swdio_drive(bool is_output)
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{
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int retval;
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/*
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* FIXME: change direction requires release and re-require the line
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* https://stackoverflow.com/questions/58735140/
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* this would change in future libgpiod
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*/
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gpiod_line_release(gpiod_swdio);
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if (is_output) {
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retval = gpiod_line_request_output(gpiod_swdio, "OpenOCD", 1);
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if (retval < 0)
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LOG_WARNING("Fail request_output line swdio");
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} else {
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retval = gpiod_line_request_input(gpiod_swdio, "OpenOCD");
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if (retval < 0)
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LOG_WARNING("Fail request_input line swdio");
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}
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last_stored = false;
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swdio_input = !is_output;
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}
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static int linuxgpiod_swd_write(int swclk, int swdio)
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{
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int retval;
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if (!swdio_input) {
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if (!last_stored || (swdio != last_swdio)) {
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retval = gpiod_line_set_value(gpiod_swdio, swdio);
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if (retval < 0)
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LOG_WARNING("Fail set swdio");
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}
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}
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/* write swclk last */
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if (!last_stored || (swclk != last_swclk)) {
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retval = gpiod_line_set_value(gpiod_swclk, swclk);
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if (retval < 0)
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LOG_WARNING("Fail set swclk");
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}
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last_swdio = swdio;
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last_swclk = swclk;
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last_stored = true;
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return ERROR_OK;
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}
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static struct bitbang_interface linuxgpiod_bitbang = {
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.read = linuxgpiod_read,
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.write = linuxgpiod_write,
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.swdio_read = linuxgpiod_swdio_read,
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.swdio_drive = linuxgpiod_swdio_drive,
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.swd_write = linuxgpiod_swd_write,
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.blink = NULL,
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};
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/*
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* Bitbang interface to manipulate reset lines SRST and TRST
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*
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* (1) assert or (0) deassert reset lines
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*/
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static int linuxgpiod_reset(int trst, int srst)
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{
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int retval1 = 0, retval2 = 0;
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LOG_DEBUG("linuxgpiod_reset");
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/* assume active low */
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if (gpiod_srst != NULL) {
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retval1 = gpiod_line_set_value(gpiod_srst, srst ? 0 : 1);
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if (retval1 < 0)
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LOG_WARNING("set srst value failed");
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}
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/* assume active low */
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if (gpiod_trst != NULL) {
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retval2 = gpiod_line_set_value(gpiod_trst, trst ? 0 : 1);
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if (retval2 < 0)
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LOG_WARNING("set trst value failed");
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}
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return ((retval1 < 0) || (retval2 < 0)) ? ERROR_FAIL : ERROR_OK;
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}
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/*
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* Helper function to determine if gpio number is valid
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*
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* Assume here that there will be less than 10000 gpios per gpiochip
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*/
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static bool is_gpio_valid(int gpio)
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{
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return gpio >= 0 && gpio < 10000;
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}
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static bool linuxgpiod_jtag_mode_possible(void)
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{
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if (!is_gpio_valid(tck_gpio))
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return false;
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if (!is_gpio_valid(tms_gpio))
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return false;
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if (!is_gpio_valid(tdi_gpio))
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return false;
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if (!is_gpio_valid(tdo_gpio))
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return false;
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return true;
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}
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static bool linuxgpiod_swd_mode_possible(void)
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{
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if (!is_gpio_valid(swclk_gpio))
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return false;
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if (!is_gpio_valid(swdio_gpio))
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return false;
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return true;
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}
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static inline void helper_release(struct gpiod_line *line)
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{
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if (line)
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gpiod_line_release(line);
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}
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static int linuxgpiod_quit(void)
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{
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helper_release(gpiod_srst);
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helper_release(gpiod_swdio);
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helper_release(gpiod_swclk);
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helper_release(gpiod_trst);
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helper_release(gpiod_tms);
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helper_release(gpiod_tck);
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helper_release(gpiod_tdi);
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helper_release(gpiod_tdo);
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gpiod_chip_close(gpiod_chip);
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return ERROR_OK;
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}
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static struct gpiod_line *helper_get_input_line(const char *label, unsigned int offset)
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{
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struct gpiod_line *line;
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int retval;
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line = gpiod_chip_get_line(gpiod_chip, offset);
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if (line == NULL) {
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LOG_ERROR("Error get line %s", label);
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return NULL;
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}
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retval = gpiod_line_request_input(line, "OpenOCD");
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if (retval < 0) {
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LOG_ERROR("Error request_input line %s", label);
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return NULL;
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}
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return line;
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}
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static struct gpiod_line *helper_get_output_line(const char *label, unsigned int offset, int val)
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{
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struct gpiod_line *line;
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int retval;
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line = gpiod_chip_get_line(gpiod_chip, offset);
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if (line == NULL) {
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LOG_ERROR("Error get line %s", label);
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return NULL;
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}
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retval = gpiod_line_request_output(line, "OpenOCD", val);
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if (retval < 0) {
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LOG_ERROR("Error request_output line %s", label);
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return NULL;
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}
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return line;
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}
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static int linuxgpiod_init(void)
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{
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LOG_INFO("Linux GPIOD JTAG/SWD bitbang driver");
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bitbang_interface = &linuxgpiod_bitbang;
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gpiod_chip = gpiod_chip_open_by_number(gpiochip);
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if (gpiod_chip == NULL) {
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LOG_ERROR("Cannot open LinuxGPIOD gpiochip %d", gpiochip);
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return ERROR_JTAG_INIT_FAILED;
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}
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/*
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* Configure TDO as an input, and TDI, TCK, TMS, TRST, SRST
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* as outputs. Drive TDI and TCK low, and TMS/TRST/SRST high.
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* For SWD, SWCLK and SWDIO are configures as output high.
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*/
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if (transport_is_jtag()) {
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if (!linuxgpiod_jtag_mode_possible()) {
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LOG_ERROR("Require tck, tms, tdi and tdo gpios for JTAG mode");
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goto out_error;
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}
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gpiod_tdo = helper_get_input_line("tdo", tdo_gpio);
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if (gpiod_tdo == NULL)
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goto out_error;
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gpiod_tdi = helper_get_output_line("tdi", tdi_gpio, 0);
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if (gpiod_tdi == NULL)
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goto out_error;
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gpiod_tck = helper_get_output_line("tck", tck_gpio, 0);
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if (gpiod_tck == NULL)
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goto out_error;
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gpiod_tms = helper_get_output_line("tms", tms_gpio, 1);
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if (gpiod_tms == NULL)
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goto out_error;
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if (is_gpio_valid(trst_gpio)) {
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gpiod_trst = helper_get_output_line("trst", trst_gpio, 1);
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if (gpiod_trst == NULL)
|
||||
goto out_error;
|
||||
}
|
||||
}
|
||||
|
||||
if (transport_is_swd()) {
|
||||
if (!linuxgpiod_swd_mode_possible()) {
|
||||
LOG_ERROR("Require swclk and swdio gpio for SWD mode");
|
||||
goto out_error;
|
||||
}
|
||||
|
||||
gpiod_swclk = helper_get_output_line("swclk", swclk_gpio, 1);
|
||||
if (gpiod_swclk == NULL)
|
||||
goto out_error;
|
||||
|
||||
gpiod_swdio = helper_get_output_line("swdio", swdio_gpio, 1);
|
||||
if (gpiod_swdio == NULL)
|
||||
goto out_error;
|
||||
}
|
||||
|
||||
if (is_gpio_valid(srst_gpio)) {
|
||||
gpiod_srst = helper_get_output_line("srst", srst_gpio, 1);
|
||||
if (gpiod_srst == NULL)
|
||||
goto out_error;
|
||||
}
|
||||
|
||||
return ERROR_OK;
|
||||
|
||||
out_error:
|
||||
linuxgpiod_quit();
|
||||
|
||||
return ERROR_JTAG_INIT_FAILED;
|
||||
}
|
||||
|
||||
COMMAND_HANDLER(linuxgpiod_handle_jtag_gpionums)
|
||||
{
|
||||
if (CMD_ARGC == 4) {
|
||||
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], tck_gpio);
|
||||
COMMAND_PARSE_NUMBER(int, CMD_ARGV[1], tms_gpio);
|
||||
COMMAND_PARSE_NUMBER(int, CMD_ARGV[2], tdi_gpio);
|
||||
COMMAND_PARSE_NUMBER(int, CMD_ARGV[3], tdo_gpio);
|
||||
} else if (CMD_ARGC != 0) {
|
||||
return ERROR_COMMAND_SYNTAX_ERROR;
|
||||
}
|
||||
|
||||
command_print(CMD,
|
||||
"LinuxGPIOD nums: tck = %d, tms = %d, tdi = %d, tdo = %d",
|
||||
tck_gpio, tms_gpio, tdi_gpio, tdo_gpio);
|
||||
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
COMMAND_HANDLER(linuxgpiod_handle_jtag_gpionum_tck)
|
||||
{
|
||||
if (CMD_ARGC == 1)
|
||||
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], tck_gpio);
|
||||
|
||||
command_print(CMD, "LinuxGPIOD num: tck = %d", tck_gpio);
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
COMMAND_HANDLER(linuxgpiod_handle_jtag_gpionum_tms)
|
||||
{
|
||||
if (CMD_ARGC == 1)
|
||||
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], tms_gpio);
|
||||
|
||||
command_print(CMD, "LinuxGPIOD num: tms = %d", tms_gpio);
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
COMMAND_HANDLER(linuxgpiod_handle_jtag_gpionum_tdo)
|
||||
{
|
||||
if (CMD_ARGC == 1)
|
||||
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], tdo_gpio);
|
||||
|
||||
command_print(CMD, "LinuxGPIOD num: tdo = %d", tdo_gpio);
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
COMMAND_HANDLER(linuxgpiod_handle_jtag_gpionum_tdi)
|
||||
{
|
||||
if (CMD_ARGC == 1)
|
||||
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], tdi_gpio);
|
||||
|
||||
command_print(CMD, "LinuxGPIOD num: tdi = %d", tdi_gpio);
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
COMMAND_HANDLER(linuxgpiod_handle_jtag_gpionum_srst)
|
||||
{
|
||||
if (CMD_ARGC == 1)
|
||||
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], srst_gpio);
|
||||
|
||||
command_print(CMD, "LinuxGPIOD num: srst = %d", srst_gpio);
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
COMMAND_HANDLER(linuxgpiod_handle_jtag_gpionum_trst)
|
||||
{
|
||||
if (CMD_ARGC == 1)
|
||||
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], trst_gpio);
|
||||
|
||||
command_print(CMD, "LinuxGPIOD num: trst = %d", trst_gpio);
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
COMMAND_HANDLER(linuxgpiod_handle_swd_gpionums)
|
||||
{
|
||||
if (CMD_ARGC == 2) {
|
||||
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], swclk_gpio);
|
||||
COMMAND_PARSE_NUMBER(int, CMD_ARGV[1], swdio_gpio);
|
||||
} else if (CMD_ARGC != 0) {
|
||||
return ERROR_COMMAND_SYNTAX_ERROR;
|
||||
}
|
||||
|
||||
command_print(CMD,
|
||||
"LinuxGPIOD nums: swclk = %d, swdio = %d",
|
||||
swclk_gpio, swdio_gpio);
|
||||
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
COMMAND_HANDLER(linuxgpiod_handle_swd_gpionum_swclk)
|
||||
{
|
||||
if (CMD_ARGC == 1)
|
||||
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], swclk_gpio);
|
||||
|
||||
command_print(CMD, "LinuxGPIOD num: swclk = %d", swclk_gpio);
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
COMMAND_HANDLER(linuxgpiod_handle_swd_gpionum_swdio)
|
||||
{
|
||||
if (CMD_ARGC == 1)
|
||||
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], swdio_gpio);
|
||||
|
||||
command_print(CMD, "LinuxGPIOD num: swdio = %d", swdio_gpio);
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
COMMAND_HANDLER(linuxgpiod_handle_gpiochip)
|
||||
{
|
||||
if (CMD_ARGC == 1)
|
||||
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], gpiochip);
|
||||
|
||||
command_print(CMD, "LinuxGPIOD gpiochip = %d", gpiochip);
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
static const struct command_registration linuxgpiod_command_handlers[] = {
|
||||
{
|
||||
.name = "linuxgpiod_jtag_nums",
|
||||
.handler = linuxgpiod_handle_jtag_gpionums,
|
||||
.mode = COMMAND_CONFIG,
|
||||
.help = "gpio numbers for tck, tms, tdi, tdo. (in that order)",
|
||||
.usage = "tck tms tdi tdo",
|
||||
},
|
||||
{
|
||||
.name = "linuxgpiod_tck_num",
|
||||
.handler = linuxgpiod_handle_jtag_gpionum_tck,
|
||||
.mode = COMMAND_CONFIG,
|
||||
.help = "gpio number for tck.",
|
||||
.usage = "tck",
|
||||
},
|
||||
{
|
||||
.name = "linuxgpiod_tms_num",
|
||||
.handler = linuxgpiod_handle_jtag_gpionum_tms,
|
||||
.mode = COMMAND_CONFIG,
|
||||
.help = "gpio number for tms.",
|
||||
.usage = "tms",
|
||||
},
|
||||
{
|
||||
.name = "linuxgpiod_tdo_num",
|
||||
.handler = linuxgpiod_handle_jtag_gpionum_tdo,
|
||||
.mode = COMMAND_CONFIG,
|
||||
.help = "gpio number for tdo.",
|
||||
.usage = "tdo",
|
||||
},
|
||||
{
|
||||
.name = "linuxgpiod_tdi_num",
|
||||
.handler = linuxgpiod_handle_jtag_gpionum_tdi,
|
||||
.mode = COMMAND_CONFIG,
|
||||
.help = "gpio number for tdi.",
|
||||
.usage = "tdi",
|
||||
},
|
||||
{
|
||||
.name = "linuxgpiod_srst_num",
|
||||
.handler = linuxgpiod_handle_jtag_gpionum_srst,
|
||||
.mode = COMMAND_CONFIG,
|
||||
.help = "gpio number for srst.",
|
||||
.usage = "srst",
|
||||
},
|
||||
{
|
||||
.name = "linuxgpiod_trst_num",
|
||||
.handler = linuxgpiod_handle_jtag_gpionum_trst,
|
||||
.mode = COMMAND_CONFIG,
|
||||
.help = "gpio number for trst.",
|
||||
.usage = "trst",
|
||||
},
|
||||
{
|
||||
.name = "linuxgpiod_swd_nums",
|
||||
.handler = linuxgpiod_handle_swd_gpionums,
|
||||
.mode = COMMAND_CONFIG,
|
||||
.help = "gpio numbers for swclk, swdio. (in that order)",
|
||||
.usage = "swclk swdio",
|
||||
},
|
||||
{
|
||||
.name = "linuxgpiod_swclk_num",
|
||||
.handler = linuxgpiod_handle_swd_gpionum_swclk,
|
||||
.mode = COMMAND_CONFIG,
|
||||
.help = "gpio number for swclk.",
|
||||
.usage = "swclk",
|
||||
},
|
||||
{
|
||||
.name = "linuxgpiod_swdio_num",
|
||||
.handler = linuxgpiod_handle_swd_gpionum_swdio,
|
||||
.mode = COMMAND_CONFIG,
|
||||
.help = "gpio number for swdio.",
|
||||
.usage = "swdio",
|
||||
},
|
||||
{
|
||||
.name = "linuxgpiod_gpiochip",
|
||||
.handler = linuxgpiod_handle_gpiochip,
|
||||
.mode = COMMAND_CONFIG,
|
||||
.help = "number of the gpiochip.",
|
||||
.usage = "gpiochip",
|
||||
},
|
||||
COMMAND_REGISTRATION_DONE
|
||||
};
|
||||
|
||||
static const char *const linuxgpiod_transport[] = { "swd", "jtag", NULL };
|
||||
|
||||
static struct jtag_interface linuxgpiod_interface = {
|
||||
.supported = DEBUG_CAP_TMS_SEQ,
|
||||
.execute_queue = bitbang_execute_queue,
|
||||
};
|
||||
|
||||
struct adapter_driver linuxgpiod_adapter_driver = {
|
||||
.name = "linuxgpiod",
|
||||
.transports = linuxgpiod_transport,
|
||||
.commands = linuxgpiod_command_handlers,
|
||||
|
||||
.init = linuxgpiod_init,
|
||||
.quit = linuxgpiod_quit,
|
||||
.reset = linuxgpiod_reset,
|
||||
|
||||
.jtag_ops = &linuxgpiod_interface,
|
||||
.swd_ops = &bitbang_swd,
|
||||
};
|
||||
|
|
@ -117,6 +117,9 @@ extern struct adapter_driver opendous_adapter_driver;
|
|||
#if BUILD_SYSFSGPIO == 1
|
||||
extern struct adapter_driver sysfsgpio_adapter_driver;
|
||||
#endif
|
||||
#if BUILD_LINUXGPIOD == 1
|
||||
extern struct adapter_driver linuxgpiod_adapter_driver;
|
||||
#endif
|
||||
#if BUILD_XLNX_PCIE_XVC == 1
|
||||
extern struct adapter_driver xlnx_pcie_xvc_adapter_driver;
|
||||
#endif
|
||||
|
|
@ -231,6 +234,9 @@ struct adapter_driver *adapter_drivers[] = {
|
|||
#if BUILD_SYSFSGPIO == 1
|
||||
&sysfsgpio_adapter_driver,
|
||||
#endif
|
||||
#if BUILD_LINUXGPIOD == 1
|
||||
&linuxgpiod_adapter_driver,
|
||||
#endif
|
||||
#if BUILD_XLNX_PCIE_XVC == 1
|
||||
&xlnx_pcie_xvc_adapter_driver,
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Reference in New Issue