modprobe pru_speak fails

[Huyston]

I'm running the latest debian image on the beaglebone black. Following the procedure in the README fails with: modprobe: FATAL: Module pru_speak not found.

This happens, firstly because plat/mailbox.h isn't found. It is in config/mailbox.h. Changing that, the compilation proceeds but with some errors and the module fails to compile.

Errors are below.

if [ ! -d "/lib/modules/4.4.54-ti-r93/build" ]; then apt-get install linux-headers-4.4.54-ti-r93; fi
make -C /lib/modules/4.4.54-ti-r93/build M=/opt/cloud9/pruspeak/src/driver modules
make[1]: Entering directory '/usr/src/linux-headers-4.4.54-ti-r93'
  CC [M]  /opt/cloud9/pruspeak/src/driver/pru_speak.o
/opt/cloud9/pruspeak/src/driver/pru_speak.c:109:7: error: conflicting types for ‘rproc_da_to_va’
 void *rproc_da_to_va(struct rproc *rproc, u64 da, int len);
       ^
In file included from /opt/cloud9/pruspeak/src/driver/pru_speak.c:15:0:
include/linux/remoteproc.h:547:7: note: previous declaration of ‘rproc_da_to_va’ was here
 void *rproc_da_to_va(struct rproc *rproc, u64 da, int len, u32 flags);
       ^
/opt/cloud9/pruspeak/src/driver/pru_speak.c:208:0: warning: "BIN_ATTR" redefined
 #define BIN_ATTR(_name,_mode,_size,_read,_write,_mmap) { \
 ^
In file included from include/linux/kobject.h:21:0,
                 from include/linux/module.h:17,
                 from /opt/cloud9/pruspeak/src/driver/pru_speak.c:12:
include/linux/sysfs.h:199:0: note: this is the location of the previous definition
 #define BIN_ATTR(_name, _mode, _read, _write, _size)   \
 ^
/opt/cloud9/pruspeak/src/driver/pru_speak.c:1275:2: error: unknown field ‘alloc_vring’ specified in initializer
  .alloc_vring = pruproc_alloc_vring,
  ^
/opt/cloud9/pruspeak/src/driver/pru_speak.c:1275:2: warning: initialization from incompatible pointer type
/opt/cloud9/pruspeak/src/driver/pru_speak.c:1275:2: warning: (near initialization for ‘pruproc_ops.da_to_va’)
/opt/cloud9/pruspeak/src/driver/pru_speak.c:1276:2: error: unknown field ‘free_vring’ specified in initializer
  .free_vring = pruproc_free_vring,
  ^
/opt/cloud9/pruspeak/src/driver/pru_speak.c:1276:2: warning: initialization from incompatible pointer type
/opt/cloud9/pruspeak/src/driver/pru_speak.c:1276:2: warning: (near initialization for ‘pruproc_ops.handle_custom_rsc’)
/opt/cloud9/pruspeak/src/driver/pru_speak.c: In function ‘pruproc_probe’:
/opt/cloud9/pruspeak/src/driver/pru_speak.c:3221:3: error: implicit declaration of function ‘devm_request_irq’ [-Werror=implicit-function-declaration]
   err = devm_request_irq(dev, irq, pru_handler, 0,
   ^
cc1: some warnings being treated as errors
scripts/Makefile.build:264: recipe for target '/opt/cloud9/pruspeak/src/driver/pru_speak.o' failed
make[2]: *** [/opt/cloud9/pruspeak/src/driver/pru_speak.o] Error 1
Makefile:1404: recipe for target '_module_/opt/cloud9/pruspeak/src/driver' failed
make[1]: *** [_module_/opt/cloud9/pruspeak/src/driver] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-4.4.54-ti-r93'
Makefile:5: recipe for target 'all' failed
make: *** [all] Error 2
make -C /lib/modules/4.4.54-ti-r93/build M=/opt/cloud9/pruspeak/src/driver modules_install
make[1]: Entering directory '/usr/src/linux-headers-4.4.54-ti-r93'
  DEPMOD  4.4.54-ti-r93
make[1]: Leaving directory '/usr/src/linux-headers-4.4.54-ti-r93'
make: Nothing to be done for 'all'.
install -m 444 pru0_firmware /lib/firmware
install -m 444 pru1_firmware /lib/firmware
dtc -O dtb -o BB-PRUSPEAK-00A0.dtbo -b 0 -@ BB-PRUSPEAK-00A0.dts 
BB-PRUSPEAK-00A0.dtbo: Warning (unit_address_vs_reg): Node /fragment@0 has a unit name, but no reg property
BB-PRUSPEAK-00A0.dtbo: Warning (unit_address_vs_reg): Node /fragment@2 has a unit name, but no reg property
BB-PRUSPEAK-00A0.dtbo: Warning (unit_address_vs_reg): Node /fragment@2/__overlay__/prurproc has a reg or ranges property, but no unit name
install -m 644 BB-PRUSPEAK-00A0.dtbo /lib/firmware
python setup.py build
running build
running build_py
python setup.py build
running build
running build_py
python setup.py install
running install
running bdist_egg
running egg_info
writing requirements to pru_speak.egg-info/requires.txt
writing pru_speak.egg-info/PKG-INFO
writing top-level names to pru_speak.egg-info/top_level.txt
writing dependency_links to pru_speak.egg-info/dependency_links.txt
reading manifest file 'pru_speak.egg-info/SOURCES.txt'
writing manifest file 'pru_speak.egg-info/SOURCES.txt'
installing library code to build/bdist.linux-armv7l/egg
running install_lib
running build_py
creating build/bdist.linux-armv7l/egg
creating build/bdist.linux-armv7l/egg/pru_speak
copying build/lib.linux-armv7l-2.7/pru_speak/__init__.py -> build/bdist.linux-armv7l/egg/pru_speak
copying build/lib.linux-armv7l-2.7/pru_speak/pruspeak.py -> build/bdist.linux-armv7l/egg/pru_speak
copying build/lib.linux-armv7l-2.7/pru_speak/node.py -> build/bdist.linux-armv7l/egg/pru_speak
copying build/lib.linux-armv7l-2.7/pru_speak/bs_lex.py -> build/bdist.linux-armv7l/egg/pru_speak
copying build/lib.linux-armv7l-2.7/pru_speak/bs_parse.py -> build/bdist.linux-armv7l/egg/pru_speak
copying build/lib.linux-armv7l-2.7/pru_speak/kernel_lib.py -> build/bdist.linux-armv7l/egg/pru_speak
byte-compiling build/bdist.linux-armv7l/egg/pru_speak/__init__.py to __init__.pyc
byte-compiling build/bdist.linux-armv7l/egg/pru_speak/pruspeak.py to pruspeak.pyc
byte-compiling build/bdist.linux-armv7l/egg/pru_speak/node.py to node.pyc
byte-compiling build/bdist.linux-armv7l/egg/pru_speak/bs_lex.py to bs_lex.pyc
byte-compiling build/bdist.linux-armv7l/egg/pru_speak/bs_parse.py to bs_parse.pyc
byte-compiling build/bdist.linux-armv7l/egg/pru_speak/kernel_lib.py to kernel_lib.pyc
creating build/bdist.linux-armv7l/egg/EGG-INFO
copying pru_speak.egg-info/PKG-INFO -> build/bdist.linux-armv7l/egg/EGG-INFO
copying pru_speak.egg-info/SOURCES.txt -> build/bdist.linux-armv7l/egg/EGG-INFO
copying pru_speak.egg-info/dependency_links.txt -> build/bdist.linux-armv7l/egg/EGG-INFO
copying pru_speak.egg-info/requires.txt -> build/bdist.linux-armv7l/egg/EGG-INFO
copying pru_speak.egg-info/top_level.txt -> build/bdist.linux-armv7l/egg/EGG-INFO
zip_safe flag not set; analyzing archive contents...
creating 'dist/pru_speak-0.0-py2.7.egg' and adding 'build/bdist.linux-armv7l/egg' to it
removing 'build/bdist.linux-armv7l/egg' (and everything under it)
Processing pru_speak-0.0-py2.7.egg
Removing /usr/local/lib/python2.7/dist-packages/pru_speak-0.0-py2.7.egg
Copying pru_speak-0.0-py2.7.egg to /usr/local/lib/python2.7/dist-packages
pru-speak 0.0 is already the active version in easy-install.pth

Installed /usr/local/lib/python2.7/dist-packages/pru_speak-0.0-py2.7.egg
Processing dependencies for pru-speak==0.0
Searching for ply==3.4
Best match: ply 3.4
ply 3.4 is already the active version in easy-install.pth

Using /usr/lib/python2.7/dist-packages
Finished processing dependencies for pru-speak==0.0
install -m 755 bs_tcp_server.py /usr/bin
install -m 755 bs_shell.py /usr/bin```

Any idea on how to fix this? Thanks.

[deepakkarki]

Hey @Huyston

The last I tested it was a couple of years ago - since then haven't been able to dedicate time towards the project. So I'm afraid I can't be of any help. You should probably look for other libraries that give you easy access to the PRUs. Just ask around the IRC channels, I sure someone can point you to an actively maintained code base.