patch #9816: Implement new programmer type: linuxspi
* linuxspi.c: (New file.) * linuxspi.h: (New file.) * Makefile.am: Add new files * configure.ac: Add "linuxspi" --enable option * avrdude.conf.in: Add "linuxspi" programmer template * pgm_type.c: Include linuxspi programmer * doc/avrdude.texi: Document new programmer * avrdude.1: (Dito.) Submitted by Ralf Ramsauer git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@1447 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
Joerg Wunsch
parent
9b3762a812
commit
40b0b104d6
13
ChangeLog
13
ChangeLog
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@ -1,3 +1,16 @@
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2020-09-19 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
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Submitted by Ralf Ramsauer
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patch #9816: Implement new programmer type: linuxspi
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* linuxspi.c: (New file.)
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* linuxspi.h: (New file.)
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* Makefile.am: Add new files
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* configure.ac: Add "linuxspi" --enable option
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* avrdude.conf.in: Add "linuxspi" programmer template
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* pgm_type.c: Include linuxspi programmer
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* doc/avrdude.texi: Document new programmer
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* avrdude.1: (Dito.)
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2020-09-18 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
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Submitted by Marcin Miskiewic
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@ -149,6 +149,8 @@ libavrdude_a_SOURCES = \
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libavrdude.h \
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linuxgpio.c \
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linuxgpio.h \
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linuxspi.c \
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linuxspi.h \
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linux_ppdev.h \
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lists.c \
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my_ddk_hidsdi.h \
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2
NEWS
2
NEWS
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@ -38,6 +38,7 @@ Current:
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- XplainedMini in UPDI mode
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- JTAGICE3 in UPDI mode
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- Atmel Powerdebugger in all modes (JTAG, PDI, UPDI, debugWIRE, ISP)
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- linuxspi (direct SPI bus e.g. on Raspberry Pi devices)
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* Bugfixes:
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bug #47550: Linux GPIO broken
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@ -76,6 +77,7 @@ Current:
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patch #9732: usbtiny_paged_load overflows buffer e.g. when reading EEPROM
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patch #9966: Add JTAGICE3 in UPDI mode
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patch #9963: UsbAsp 3 MHz patch for UsbAsp-flash firmware
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patch #9816: Implement new programmer type: linuxspi
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* Internals:
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- New avrdude.conf keyword "family_id", used to verify SIB attributes
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32
avrdude.1
32
avrdude.1
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@ -1,6 +1,6 @@
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.\"
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.\" avrdude - A Downloader/Uploader for AVR device programmers
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.\" Copyright (C) 2001, 2002, 2003, 2005 - 2016 Joerg Wunsch
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.\" Copyright (C) 2001, 2002, 2003, 2005 - 2020 Joerg Wunsch
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.\"
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.\" This program is free software; you can redistribute it and/or modify
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.\" it under the terms of the GNU General Public License as published by
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@ -18,7 +18,7 @@
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.\"
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.\" $Id$
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.\"
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.Dd DATE February 15, 2016
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.Dd DATE September 19, 2020
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.Os
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.Dt AVRDUDE 1
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.Sh NAME
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@ -109,6 +109,34 @@ some resistors in series or better yet use a 3-state buffer driver like
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the 74HC244. Have a look at http://kolev.info/avrdude-linuxgpio for a more
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detailed tutorial about using this programmer type.
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.Pp
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Under a Linux installation with direct access to the SPI bus and GPIO
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pins, such as would be found on a Raspberry Pi, the ``linuxspi''
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programmer type can be used to directly connect to and program a chip
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using the built in interfaces on the computer. The requirements to use
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this type are that an SPI interface is exposed along with one GPIO
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pin. The GPIO serves as the reset output since the Linux SPI drivers
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do not hold slave select down when a transfer is not occuring and thus
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it cannot be used as the reset pin. A readily available level
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translator should be used between the SPI bus/reset GPIO and the chip
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to avoid potentially damaging the computer's SPI controller in the
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event that the chip is running at 5V and the SPI runs at 3.3V. The
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GPIO chosen for reset can be configured in the avrdude configuration
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file using the
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.Li reset
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entry under the linuxspi programmer, or
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directly in the port specification. An external pull-up resistor
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should be connected between the AVR's reset pin and Vcc. If Vcc is not
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the same as the SPI voltage, this should be done on the AVR side of
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the level translator to protect the hardware from damage.
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.Pp
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A commented-out template for this programmer is provided in the
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avrdude configuration file. To use it, clone that entry into the
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per-user configuration file, and configure the
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.Li reset
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GPIO
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number accordingly. Linuxspi can be used as follows:
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.Dl avrdude -c linuxspi -P /dev/spidev:/dev/gpiochip[:resetpin]
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.Pp
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Atmel's STK500 programmer is also supported and connects to a serial
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port.
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Both, firmware versions 1.x and 2.x can be handled, but require a
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@ -1487,6 +1487,23 @@ programmer
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# miso = ?;
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#;
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# This programmer uses the built in linux SPI bus devices to program an
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# attached AVR. A GPIO accessed through the sysfs GPIO interface needs to
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# be specified for a reset pin since the linux SPI userspace functions do
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# not allow for control over the slave select/chip select signal.
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#
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# To use it, copy this snippet into your ~/.avrduderc, make sure the
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# 'reset' entry is configured correctly.
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#
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# programmer
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# id = "linuxspi";
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# desc = "Use Linux SPI device in /dev/spidev*";
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# type = "linuxspi";
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# reset = 25;
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# baudrate=400000;
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# ;
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# some ultra cheap programmers use bitbanging on the
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# serialport.
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#
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26
configure.ac
26
configure.ac
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@ -336,6 +336,18 @@ AC_ARG_ENABLE(
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esac],
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[enabled_linuxgpio=no])
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AC_ARG_ENABLE(
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[linuxspi],
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AC_HELP_STRING(
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[--enable-linuxspi],
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[Enable the Linux SPIDEV interface programmer type]),
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[case "${enableval}" in
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yes) enabled_linuxspi=yes ;;
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no) enabled_linuxspi=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for enable-linuxspi option) ;;
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esac],
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[enabled_linuxspi=no])
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DIST_SUBDIRS_AC='doc windows'
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if test "$enabled_doc" = "yes"; then
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@ -413,6 +425,14 @@ else
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fi
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if test "$enabled_linuxspi" = "yes"; then
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AC_DEFINE(HAVE_LINUXSPI, 1, [Linux SPI support enabled])
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confsubst="$confsubst -e /^@HAVE_LINUXSPI_/d"
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else
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confsubst="$confsubst -e /^@HAVE_LINUXSPI_BEGIN@/,/^@HAVE_LINUXSPI_END@/d"
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fi
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# If we are compiling with gcc, enable all warning and make warnings errors.
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if test "$GCC" = yes; then
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ENABLE_WARNINGS="-Wall"
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@ -590,3 +610,9 @@ else
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echo "DISABLED linuxgpio"
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fi
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if test x$enabled_linuxspi = xyes; then
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echo "ENABLED linuxspi"
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else
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echo "DISABLED linuxspi"
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fi
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@ -180,6 +180,33 @@ some resistors in series or better yet use a 3-state buffer driver like
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the 74HC244. Have a look at http://kolev.info/avrdude-linuxgpio for a more
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detailed tutorial about using this programmer type.
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Under a Linux installation with direct access to the SPI bus and GPIO
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pins, such as would be found on a Raspberry Pi, the ``linuxspi''
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programmer type can be used to directly connect to and program a chip
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using the built in interfaces on the computer. The requirements to use
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this type are that an SPI interface is exposed along with one GPIO
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pin. The GPIO serves as the reset output since the Linux SPI drivers
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do not hold slave select down when a transfer is not occuring and thus
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it cannot be used as the reset pin. A readily available level
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translator should be used between the SPI bus/reset GPIO and the chip
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to avoid potentially damaging the computer's SPI controller in the
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event that the chip is running at 5V and the SPI runs at 3.3V. The
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GPIO chosen for reset can be configured in the avrdude configuration
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file using the @code{reset} entry under the linuxspi programmer, or
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directly in the port specification. An external pull-up resistor
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should be connected between the AVR's reset pin and Vcc. If Vcc is not
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the same as the SPI voltage, this should be done on the AVR side of
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the level translator to protect the hardware from damage.
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A commented-out template for this programmer is provided in the
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avrdude configuration file. To use it, clone that entry into the
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per-user configuration file, and configure the @code{reset} GPIO
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number accordingly. Linuxspi can be used as follows:
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@smallexample
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avrdude -c linuxspi -P /dev/spidev:/dev/gpiochip[:resetpin]
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@end smallexample
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The STK500, JTAG ICE, avr910, and avr109/butterfly use the serial port to communicate with the PC.
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The STK600, JTAG ICE mkII/3, AVRISP mkII, USBasp, avrftdi (and derivatives), and USBtinyISP
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programmers communicate through the USB, using @code{libusb} as a
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@ -0,0 +1,302 @@
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/*
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* avrdude - A Downloader/Uploader for AVR device programmers
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* Support for using spidev userspace drivers to communicate directly over SPI
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*
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* Copyright (C) 2013 Kevin Cuzner <kevin@kevincuzner.com>
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* Copyright (C) 2018 Ralf Ramsauer <ralf@vmexit.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Support for inversion of reset pin, Tim Chilton 02/05/2014
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* Review code, rebase to latest trunk, add linux/gpio.h support, Ralf Ramsauer 2018-09-07
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*/
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#include "ac_cfg.h"
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#include "avrdude.h"
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#include "libavrdude.h"
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#include "linuxspi.h"
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#if HAVE_LINUXSPI
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/**
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* Linux Kernel SPI Drivers
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*
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* Copyright (C) 2006 SWAPP
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* Andrea Paterniani <a.paterniani@swapp-eng.it>
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* Copyright (C) 2007 David Brownell (simplification, cleanup)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/ioctl.h>
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#include <linux/types.h>
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#include <linux/spi/spidev.h>
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#include <linux/gpio.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#define LINUXSPI "linuxspi"
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static int fd_spidev, fd_gpiochip, fd_linehandle;
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/**
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* @brief Sends/receives a message in full duplex mode
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* @return -1 on failure, otherwise number of bytes sent/recieved
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*/
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static int linuxspi_spi_duplex(PROGRAMMER *pgm, const unsigned char *tx, unsigned char *rx, int len)
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{
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struct spi_ioc_transfer tr;
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int ret;
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tr = (struct spi_ioc_transfer) {
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.tx_buf = (unsigned long)tx,
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.rx_buf = (unsigned long)rx,
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.len = len,
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.delay_usecs = 1,
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//should settle around 400Khz, a standard SPI speed. Adjust using baud parameter (-b)
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.speed_hz = pgm->baudrate == 0 ? 400000 : pgm->baudrate,
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.bits_per_word = 8,
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};
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ret = ioctl(fd_spidev, SPI_IOC_MESSAGE(1), &tr);
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if (ret != len)
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avrdude_message(MSG_INFO, "\n%s: error: Unable to send SPI message\n", progname);
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return (ret == -1) ? -1 : 0;
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}
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static void linuxspi_setup(PROGRAMMER *pgm)
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{
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}
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static void linuxspi_teardown(PROGRAMMER* pgm)
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{
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}
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static int linuxspi_open(PROGRAMMER *pgm, char *port)
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{
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const char *port_error = "%s: error: Unknown port specification. Please use the format /dev/spidev:/dev/gpiochip[:resetno]\n";
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char *spidev, *gpiochip, *reset_pin;
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struct gpiohandle_request req;
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struct gpiohandle_data data;
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int ret;
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if (!port || !strcmp(port, "unknown")) {
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avrdude_message(MSG_INFO, "%s: error: No port specified. Port should point to an spidev device.\n", progname);
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return -1;
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}
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spidev = strtok(port, ":");
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if (!spidev) {
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avrdude_message(MSG_INFO, port_error, progname);
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return -1;
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}
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gpiochip = strtok(NULL, ":");
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if (!gpiochip) {
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avrdude_message(MSG_INFO, port_error, progname);
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return -1;
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}
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/* optional: override reset pin in configuration */
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reset_pin = strtok(NULL, ":");
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if (reset_pin)
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pgm->pinno[PIN_AVR_RESET] = strtoul(reset_pin, NULL, 0);
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strcpy(pgm->port, port);
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fd_spidev = open(pgm->port, O_RDWR);
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if (fd_spidev < 0) {
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avrdude_message(MSG_INFO, "\n%s: error: Unable to open the spidev device %s", progname, pgm->port);
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return -1;
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}
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fd_gpiochip = open(gpiochip, 0);
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if (fd_gpiochip < 0) {
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close(fd_spidev);
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avrdude_message(MSG_INFO, "\n%s error: Unable to open the gpiochip %s", progname, gpiochip);
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ret = -1;
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goto close_spidev;
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}
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strcpy(req.consumer_label, progname);
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req.lines = 1;
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req.lineoffsets[0] = pgm->pinno[PIN_AVR_RESET];
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req.flags = GPIOHANDLE_REQUEST_OUTPUT;
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ret = ioctl(fd_gpiochip, GPIO_GET_LINEHANDLE_IOCTL, &req);
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if (ret == -1) {
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ret = -errno;
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goto close_gpiochip;
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}
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fd_linehandle = req.fd;
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/*
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* Set the reset state and keep it. The pin will be released and set back to
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* its initial value, once the fd_gpiochip is closed.
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*/
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data.values[0] = !!(pgm->pinno[PIN_AVR_RESET] & PIN_INVERSE);
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ret = ioctl(fd_linehandle, GPIOHANDLE_SET_LINE_VALUES_IOCTL, &data);
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if (ret == -1) {
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ret = -errno;
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goto close_out;
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}
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return 0;
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close_out:
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close(fd_linehandle);
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close_gpiochip:
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close(fd_gpiochip);
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close_spidev:
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close(fd_spidev);
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return ret;
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}
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static void linuxspi_close(PROGRAMMER *pgm)
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{
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close(fd_spidev);
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close(fd_gpiochip);
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}
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static void linuxspi_disable(PROGRAMMER* pgm)
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{
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}
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static void linuxspi_enable(PROGRAMMER* pgm)
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{
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}
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static void linuxspi_display(PROGRAMMER* pgm, const char* p)
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{
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}
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static int linuxspi_initialize(PROGRAMMER *pgm, AVRPART *p)
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{
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int tries, ret;
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if (p->flags & AVRPART_HAS_TPI) {
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/* We do not support tpi. This is a dedicated SPI thing */
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avrdude_message(MSG_INFO, "%s: error: Programmer " LINUXSPI " does not support TPI\n", progname);
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return -1;
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}
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//enable programming on the part
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tries = 0;
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do
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{
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ret = pgm->program_enable(pgm, p);
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if (ret == 0 || ret == -1)
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break;
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} while(tries++ < 65);
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|
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if (ret)
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avrdude_message(MSG_INFO, "%s: error: AVR device not responding\n", progname);
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return ret;
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}
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static int linuxspi_cmd(PROGRAMMER *pgm, const unsigned char *cmd, unsigned char *res)
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{
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return linuxspi_spi_duplex(pgm, cmd, res, 4);
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}
|
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static int linuxspi_program_enable(PROGRAMMER *pgm, AVRPART *p)
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{
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unsigned char cmd[4], res[4];
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if (!p->op[AVR_OP_PGM_ENABLE]) {
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avrdude_message(MSG_INFO, "%s: error: program enable instruction not defined for part \"%s\"\n", progname, p->desc);
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return -1;
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}
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memset(cmd, 0, sizeof(cmd));
|
||||
avr_set_bits(p->op[AVR_OP_PGM_ENABLE], cmd); //set the cmd
|
||||
pgm->cmd(pgm, cmd, res);
|
||||
|
||||
if (res[2] != cmd[1])
|
||||
return -2;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int linuxspi_chip_erase(PROGRAMMER *pgm, AVRPART *p)
|
||||
{
|
||||
unsigned char cmd[4], res[4];
|
||||
|
||||
if (!p->op[AVR_OP_CHIP_ERASE]) {
|
||||
avrdude_message(MSG_INFO, "%s: error: chip erase instruction not defined for part \"%s\"\n", progname, p->desc);
|
||||
return -1;
|
||||
}
|
||||
|
||||
memset(cmd, 0, sizeof(cmd));
|
||||
avr_set_bits(p->op[AVR_OP_CHIP_ERASE], cmd);
|
||||
pgm->cmd(pgm, cmd, res);
|
||||
usleep(p->chip_erase_delay);
|
||||
pgm->initialize(pgm, p);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void linuxspi_initpgm(PROGRAMMER *pgm)
|
||||
{
|
||||
strcpy(pgm->type, LINUXSPI);
|
||||
|
||||
pgm_fill_old_pins(pgm); // TODO to be removed if old pin data no longer needed
|
||||
|
||||
/* mandatory functions */
|
||||
pgm->initialize = linuxspi_initialize;
|
||||
pgm->display = linuxspi_display;
|
||||
pgm->enable = linuxspi_enable;
|
||||
pgm->disable = linuxspi_disable;
|
||||
pgm->program_enable = linuxspi_program_enable;
|
||||
pgm->chip_erase = linuxspi_chip_erase;
|
||||
pgm->cmd = linuxspi_cmd;
|
||||
pgm->open = linuxspi_open;
|
||||
pgm->close = linuxspi_close;
|
||||
pgm->read_byte = avr_read_byte_default;
|
||||
pgm->write_byte = avr_write_byte_default;
|
||||
|
||||
/* optional functions */
|
||||
pgm->setup = linuxspi_setup;
|
||||
pgm->teardown = linuxspi_teardown;
|
||||
}
|
||||
|
||||
const char linuxspi_desc[] = "SPI using Linux spidev driver";
|
||||
|
||||
#else /* !HAVE_LINUXSPI */
|
||||
|
||||
void linuxspi_initpgm(PROGRAMMER * pgm)
|
||||
{
|
||||
avrdude_message(MSG_INFO, "%s: Linux SPI driver not available in this configuration\n",
|
||||
progname);
|
||||
}
|
||||
|
||||
const char linuxspi_desc[] = "SPI using Linux spidev driver (not available)";
|
||||
|
||||
#endif /* HAVE_LINUXSPI */
|
||||
|
|
@ -0,0 +1,35 @@
|
|||
/*
|
||||
* avrdude - A Downloader/Uploader for AVR device programmers
|
||||
* Copyright (C) 2013 Kevin Cuzner <kevin@kevincuner.com>
|
||||
*
|
||||
* 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
|
||||
*/
|
||||
|
||||
#ifndef linuxspi_h
|
||||
#define linuxspi_h
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern const char linuxspi_desc[];
|
||||
void linuxspi_initpgm (PROGRAMMER * pgm);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif //linuxspi_h
|
||||
|
||||
|
|
@ -40,6 +40,7 @@
|
|||
#include "jtagmkII.h"
|
||||
#include "jtag3.h"
|
||||
#include "linuxgpio.h"
|
||||
#include "linuxspi.h"
|
||||
#include "par.h"
|
||||
#include "pickit2.h"
|
||||
#include "ppi.h"
|
||||
|
|
@ -81,6 +82,7 @@ const PROGRAMMER_TYPE programmers_types[] = {
|
|||
{"jtagice3_dw", jtag3_dw_initpgm, jtag3_dw_desc},
|
||||
{"jtagice3_isp", stk500v2_jtag3_initpgm, stk500v2_jtag3_desc},
|
||||
{"linuxgpio", linuxgpio_initpgm, linuxgpio_desc},
|
||||
{"linuxspi", linuxspi_initpgm, linuxspi_desc},
|
||||
{"par", par_initpgm, par_desc},
|
||||
{"pickit2", pickit2_initpgm, pickit2_desc},
|
||||
{"serbb", serbb_initpgm, serbb_desc},
|
||||
|
|
|
|||
Loading…
Reference in New Issue