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Author SHA1 Message Date
Drew Fustini
f069dd784e Return BBIO_OK when u-boot overlays ared enabled 
When Linux kernel boots with u-boot overlays enabled,
do not load overlays via slots file as the write will
hang due to kernel bug in cape manager driver.

Skip cape manager and just return BBIO_OK.
 2017-06-28 09:03:04 +00:00
Drew Fustini
ae47281a0e Add documentation about u-boot overlays 2017-06-28 08:15:36 +00:00
Drew Fustini
ae38e86006 check if kernel cmdline for uboot overlay 
Test on Debian Jessie 2017-06-18 image:

debian@beaglebone:~$ cat /proc/cmdline
console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1 root=/dev/mmcblk0p1 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 quiet
debian@beaglebone:~$ grep -c bone_capemgr.uboot_capemgr_enabled=1 /proc/cmdline
1
debian@beaglebone:~$ sudo python ~/read_adc.py
load_device_tree: cmd=grep -c bone_capemgr.uboot_capemgr_enabled=1 /proc/cmdline
load_device_tree: uboot_overlay=1
load_device_tree: uboot_overlay is 1
 2017-06-28 08:05:07 +00:00
Drew Fustini
d93466ff23 Test if kernel booted wit u-boot overlays 2017-06-28 05:10:02 +00:00
Vadim-Stupakov
e0385b1707 Fixed issue #145 GPIO library doesn't free GPIO file descriptor. File descriptor leak. 
Made a little bit refactoring
 2017-06-25 13:30:27 +03:00
Drew Fustini
ff57ef2558 increase size of ctrl_dir and ocp_dir for future use 
Pad the size of ctrl_dir and ocp_dir to be on the safe side
 2017-04-19 04:00:36 +00:00
Drew Fustini
01f73c578c remove conditional logic for ctrl_dir and ocp_dir size 
Remove conditional logic for kernel version to determine the
size of ctrl_dir and ocp_dir.  Instead, the maximum possible
size is used for these arrays regardless of the kernel version

Resolves #144
 2017-04-19 03:14:31 +00:00
Drew Fustini
da0b0e5890 close file descriptor to avoid leak 
Resolves issue #140
 2017-04-12 05:48:29 +00:00
Drew Fustini
2a7e7c6862 fix file descriptor leak in gpio_set_value() 
Leak of the file descriptor was reported in issue #142.

I have switched from open() to access() so no need to close fd.
 2017-04-05 06:45:35 +00:00
Drew Fustini
c087b3c9e7 Merge pull request #143 from djsutton/fix-wait_for_edge-TypeError 
fix TypeError: function takes exactly 3 arguments (2 given) from wait_for_edge
 2017-04-02 07:33:39 -05:00
cocasema
5b9061492a Add PWM c++ tests 2017-03-31 02:17:00 -07:00
cocasema
91fb7c8065 Add default values to pwm::start() method. 2017-03-31 02:17:00 -07:00
cocasema
ee2d7290b9 Install header files properly 2017-03-31 02:17:00 -07:00
cocasema
c28011fc6c Add 2 versions of library with c++98 and c++11 abi 2017-03-31 02:17:00 -07:00
cocasema
ceb468108f Add libadafruit-bbio with C++ wrappers for PWM/GPIO 2017-03-31 02:17:00 -07:00
cocasema
6c489fce8e Add syslog and debugging messages 2017-03-31 02:16:21 -07:00
DJ Sutton
6e54808868 fix TypeError: function takes exactly 3 arguments (2 given) from wait_for_edge 
Trying to parse 3 required arguments and then falling back to 2 will set the
PyError condition when only two arguments are present even though the
wait_for_edge function as a whole succeeds.  According to
https://docs.python.org/2/c-api/exceptions.html, returning normally after this
will lead to undefined behavior the next time the code enters the C API.

Fix this by using the PyArg_ParseTuple optional argument feature instead of
trying to parse 3 arguments and falling back to 2 if it fails.
 2017-03-28 19:58:17 -06:00
cocasema
4b7e11f4d7 Extract BBIO_err into a separate header 2017-03-24 22:04:06 -07:00
Drew Fustini
a9353da3cc Merge pull request #138 from softwareschneiderei/fix_duplicate_export 
Fix duplicate export
 2017-03-24 11:03:53 -05:00
Marius Elvert
4a4130e3b6 Fix build_path memory leak 2017-03-21 16:38:38 +01:00
Marius Elvert
dcba8f66a7 Handle already exported pins 2017-03-06 15:03:46 +01:00
Marius Elvert
5bc893a8cc Use lookup table to prevent duplicate pin export 2017-03-06 11:48:43 +01:00
Drew Fustini
6d78f9db06 Fix gcc warnings about comparing signed and unsigned values 
warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 2017-01-11 09:14:38 +00:00
Drew Fustini
d727792e28 Silence gcc warning -Wsign-compare 
TODO: fix source the actual cause of the warning:
source/common.c:344:14: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
 2017-01-10 10:55:12 +00:00
Drew Fustini
b1ad088164 Fix unused parameter warning [-Werror=unused-parameter] 2017-01-10 10:52:01 +00:00
Drew Fustini
edac02a875 Fix gcc warning -Wno-format-security 2017-01-10 10:52:01 +00:00
Drew Fustini
43c8d5d0fe Fix unused parameter warning [-Werror=unused-parameter] 2017-01-10 10:51:59 +00:00
Drew Fustini
14f82d94a0 remove debug logging 2017-01-09 02:21:55 +00:00
Drew Fustini
f779f8898a add support for alternate USR LED naming 
Related issue:
Doesn't support Ubuntu core beaglebone leds #129
https://github.com/adafruit/adafruit-beaglebone-io-python/issues/129
 2017-01-04 08:56:34 +00:00
Drew Fustini
67e0f61f9c add PWM test for ecap0 (P9_42) and ecap2 (P9_28) 2016-12-20 10:26:19 +00:00
Drew Fustini
f58cabef1d Use pin mode "pwm2" for P9_28 2016-12-20 09:46:50 +00:00
Drew Fustini
db9b3b7b1b fix PWM for ECAP pins (P9_28 and P9_42) 2016-12-18 07:03:58 +00:00
João Paulo Barraca
40e5cd36c6 Merge branch 'master' of https://github.com/adafruit/adafruit-beaglebone-io-python 2016-11-23 22:53:25 +00:00
João Paulo Barraca
4639c7d04e Fix compilation error 2016-11-23 22:40:26 +00:00
Shawn Wilson
9553b1a7b0 Changed gpio_set_direction to ignore USR LEDs. 2016-11-21 11:34:06 -05:00
Shawn Wilson
5b8a2c00a6 Added a delay parameter in order to wait for udev to make 
file permission changes.
 2016-11-19 16:27:29 -05:00
João Paulo Barraca
3791de4c0a Merge branch 'master' of https://github.com/adafruit/adafruit-beaglebone-io-python 2016-10-30 10:55:47 +00:00
Drew Fustini
4371949776 Adjust ADC scaling based on kernel version 
The older Linux 3.8.13 kernel produced raw ADC value
of 0 to 1800.  Newer Linux 4.1+ kernels produce ADC
value of 0 to 4095.
 2016-10-28 08:49:53 +00:00
Deng Bo
9220c13f90 BBB has 12‐bit ADCs (2^12 = 4,096), meaning a value between 0 and 2^12 − 1 (0 to 4,095), read() should return the raw value devide by 4095. 2016-10-26 11:23:07 +08:00
Oleg Antonyan
36c5a136df Merge remote-tracking branch 'upstream/master' 
Conflicts:
	source/py_gpio.c
 2016-10-20 09:13:50 +02:00
Drew Fustini
452f2e7ee3 Buffer for SPI bus sysfs path too small 
@kozga advised in issue #94 of a bug in
get_spi_bus_path_number()

> In version 1.0 declared path length is too low (50 bytes)
> But for kernels 4.1 path length is 54 bytes.
> In result, path is shortened to
> '/sys/devices/platform/ocp/48030000.spi/spi_master/'
> and function always return 1,
> even if you try to open /dev/spidev2.x.

These are the sysfs paths for the SPI bus 1 and 2
for Debian 8.6 with Linux 4.4.21-bone13 kernel:

/sys/devices/platform/ocp/48030000.spi/spi_master/spi1/
/sys/devices/platform/ocp/481a0000.spi/spi_master/spi2/

I have fixed by increasing the size of path to MAX_PATH.
MAX_PATH is defined as 256.  This should provide enough
extra margin for any future kernel changes in sysfs paths.
 2016-10-19 23:05:52 +00:00
cocasema
efc0a25f65 Treat warnings as errors 2016-10-18 21:59:24 -07:00
Drew Fustini
e7e987aa34 Merge pull request #119 from JesseMcL/pr 
Add GPIO pullup configurations and fix PWM Segfault on kernel 4.1+
 2016-10-18 22:12:39 -05:00
Jesse McLachlan
5510854b0c Properly support pullup configuration using pinmux 2016-10-10 14:59:53 +11:00
Jesse McLachlan
207526e91d Move BBBVERSION41 pwm disable logic into pwm list iterator. 
Outside the list iteration loop it causes a seg fault from writing to a closed/invalid handle if PWM.stop is called when the PWM is not open
 2016-10-10 14:58:52 +11:00
Jesse McLachlan
bbac61a95e Handle bonescript compatible pin names in ocp set pin mode function (bonescript uses eg, P8_6 instead of P8_06 which OCP needs) 2016-10-10 14:55:59 +11:00
Krzysztof Ożga
508364b4b3 Fix SPI: IOError: [Errno 22] Invalid argument in xfer and xfer2 functions 2016-09-29 08:01:17 +00:00
Matthew West
0620b43818 Bugfix: add missing read call 2016-08-30 09:46:56 -06:00
Matthew West
6759d58b91 Remove some trailing whitespace 2016-08-29 21:21:50 -07:00
Matthew West
f48e60d501 When setting up a PWM pin, read period_ns & duty_ns 2016-08-29 21:20:40 -07:00
Matthew West
565f2dc27e Fix return convention errors 2016-08-11 15:21:41 -07:00
Matthew West
09e7597982 Fix ADC error in 3.8 2016-08-10 16:52:54 -07:00
Matthew West
ddbf6c354f Fix initialization weirdness with pwm_set_frequency 2016-08-10 15:29:51 -07:00
Matthew West
99e27ad39e Add a safeguard if we didn't start 2016-08-10 15:29:29 -07:00
Matthew West
f4fcd12c2f Move a common variable out of #ifdef and #else 2016-08-10 15:29:11 -07:00
Matthew West
149129c3f5 Initialize ocp_dir before use 2016-08-10 15:09:14 -07:00
Matthew West
b0c90d5be6 Improve comment giving documentation 2016-08-10 13:41:18 -07:00
Matthew West
dea25a6d84 Switch back to included device trees - possibly it was a regression on upgraded 7.11. 2016-08-10 09:25:29 -07:00
Matthew West
0b8def4cb5 Bugfixes based on CircleCI (regressions introduced on 3.8) 2016-08-08 15:26:38 -07:00
Matthew West
cd2456b157 Fix PWM tests to reflect 4.1+ 2016-08-08 12:09:19 -07:00
Matthew West
b6cf76fa0b Small bugfix to setting frequency 2016-08-08 11:26:42 -07:00
Matthew West
ac1104c55b Fix bug with setting frequency, fix stopping 2016-08-08 11:18:27 -07:00
Matthew West
8fe1336b0a Bug fixes almost to stability 2016-08-08 10:51:15 -07:00
Matthew West
298334a814 Bug fixes to 4.1+ PWM code 2016-08-05 13:27:42 -07:00
Matthew West
6b2aa7aabc Change return value convention for errors 
Replace 1 for success and 0/-1 for failure with an enum type.
 2016-08-05 13:19:54 -07:00
Matthew West
8a2e4d1b85 Switch from this library's Device Tree Overlays to those included on every image. 2016-08-05 11:31:08 -07:00
Matthew West
d6fe11ed89 Add ifndef guards to all header files 2016-08-05 11:17:14 -07:00
Matthew West
599ec57f4c Fix PWM in Linux 4.1+ 2016-08-05 10:16:34 -07:00
Matthew West
a2a88fb21a Move PWM exporting to its own function 2016-08-05 09:58:04 -07:00
Matthew West
926b253498 Bug fix - move necessary string print outside version guards 2016-08-05 09:52:29 -07:00
Matthew West
9f38244b60 Remove broken version check in common.c (now in setup.py) 2016-08-05 09:51:29 -07:00
Matthew West
b07d85d65e Small formatting fixes to common.c 2016-08-05 09:50:57 -07:00
Matthew West
aca9eb480b Replace build_path impementation with glob 2016-08-05 09:42:32 -07:00
Peter Lawler
ac517ff7fb No, really. Death to stray whitespace. 2016-05-11 09:14:05 +10:00
Peter Lawler
c9273456a6 Death to stray whitespace 2016-05-11 09:13:23 +10:00
Peter Lawler
6cee8393e4 Remove lines left behind from manual merge 2016-05-11 09:12:29 +10:00
Peter Lawler
86a5145e11 Remove stray sprintf that snuck in during manual edit 2016-05-11 09:00:31 +10:00
Peter Lawler
2ff640145e Attributions 2016-05-11 08:49:03 +10:00
Peter Lawler
b7914ee3f6 Manually edited source change removed incorrect line 2016-05-11 08:43:02 +10:00
plawler
d16654d20a Make friends between 3.8 and 4.1+ kernels 2016-04-29 12:29:29 +10:00
Enzo Macari
d9ad2b3812 Soporte para adc y gpio ok 
TODO: PWM
 2016-02-03 17:23:35 -03:00
Drew Fustini
b620b3f942 Add support for on-board LEDs (USR0-USR3) 
The built-in LEDs are handled by the LED class driver and have a
different /sys/ path than the GPIO pins.

See PyBBIO library for reference:
https://github.com/graycatlabs/PyBBIO/blob/master/bbio/platform/beaglebone/config.py#L44

Resolves Adafruit customer reported issue:
https://forums.adafruit.com/viewtopic.php?f=49&t=51906
 2016-01-03 18:00:25 +00:00
Simon Westphahl
9514af6f22 Add support for Python 3 
Installation of the missing py_compile module was factored out into a
standalone script which is only compatible with Python 2.
 2015-05-06 08:29:00 +02:00
Justin Cooper
a764f571d5 Events should be non-reentrant #72 2014-10-13 12:35:55 -05:00
Tony DiCola
5c8db6b80d Fix #67 and fix compiler warnings. 2014-10-03 23:24:10 +00:00
João Paulo Barraca
e75696f4d5 Added missing space 2014-07-16 00:07:41 +01:00
João Paulo Barraca
bc9109caeb Merge branch 'master' of https://github.com/jpbarraca/adafruit-beaglebone-io-python 
Conflicts:
	source/event_gpio.h
	source/py_gpio.c
 2014-07-15 23:58:16 +01:00
João Paulo Barraca
3b345a7c9e Added support for timeout 2014-07-15 23:53:59 +01:00
Justin Cooper
dabffc6d9c bump version to 0.0.20 2014-05-27 19:45:51 +00:00
Justin Cooper
9866c2eaa7 remove dead code 2014-05-27 19:40:32 +00:00
Justin Cooper
9e1bd7ba77 remove unused variable 2014-05-27 19:40:22 +00:00
Justin Cooper
6d2610b893 clean up source 2014-05-23 16:03:44 +00:00
Justin Cooper
7075f7a3e2 initialize ctrl_dir in unload_device_tree 2014-05-23 03:27:14 +00:00
Justin Cooper
25e654a982 fix for SPI not loading spidevX.X correctly based on load order 2014-05-23 03:22:48 +00:00
Oleg Antonyan
6cba967bf2 Wait until GPIO file appears on the /sys filesystem (issue #36) 2014-05-21 07:04:00 +03:00
João Paulo Barraca
c86fed7263 Fix compilation error 2014-03-30 02:10:45 +01:00
João Paulo Barraca
7b1f0d4fa8 Added support for timeouts in wait_for_edge 2014-03-30 00:16:03 +00:00
Terry Hardie
8bef9b21db Fixed the use of the "initial" parameter in setup(). This allows the initial state of the port to be set correctly when setting OUTPUT mode 2014-03-09 23:35:58 -07:00
Guy Carpenter
3597729760 Use 16-bit len counters so we can xfer > 255 bytes. 2014-01-28 03:17:09 +00:00
Justin Cooper
369ff155bc Revert memory leak changes, causing issues with lsbfirst etc 2013-12-30 09:55:26 -06:00
Justin Cooper
baa94193ac Fix for SPI.cshigh 2013-12-28 11:15:16 -06:00
Justin Cooper
7617c873b0 bump version to 0.0.19, and update changelog 2013-11-25 18:15:11 +00:00
Justin Cooper
408ea386f0 fix xfer and xfer2 glibc errors 2013-11-25 17:56:30 +00:00
Zach Thorson
fa1b4a3e7e Added a retry to reading for the analog inputs to avoid a bug where reading back and forth between two analog inputs would cause the resource to be unavailable every 16 scans 
Corrected the readback of the success bit to correctly check for a read and raise an exception on failure
 2013-11-20 14:52:04 -06:00
Zach Thorson
34d7e30e1a Updated the build_path to be more selective over what paths it chooses (This should prevent chosing the wrong helper leading to seg faults) 
Improved error messages when ADC fails to setup
Check for null file handle when opening AIN to prevent seg fault
 2013-11-14 11:10:09 -06:00
Eric Lee
715e87d2ab Increase the size of the buffer used for storing device tree names. 
The previous buffer size was 9 which was not log enough to hold the name of the UART device tree items.
 2013-09-21 23:30:34 -07:00
Justin Cooper
9d749903b0 include UART Overlays as part of installation 2013-09-12 02:07:32 +00:00
Justin Cooper
7c130826d6 bump for 0.0.17 2013-08-19 21:52:41 +00:00
Justin Cooper
a0902d971f further pwm cleanup 2013-08-19 21:52:16 +00:00
Justin Cooper
69b617b67d Merge pull request #29 from bit-hacker/patch-2 
Clean up of PWM code
 2013-08-19 14:43:44 -07:00
Justin Cooper
c83f6ef38d fix memory leaks with spimodule 2013-08-19 21:35:17 +00:00
Justin Cooper
59dff1cfee remove print statements 2013-08-19 21:25:04 +00:00
bit-hacker
fc4df3fdf1 Update c_pwm.c 
In definition of struct pwm_exp, extended length of key by 1 to ensure room for a terminating byte.  Currently, the code doesn't check this, expecting strncpy in pwm_start to trim and NUL-terminate the string. 

In lookup_exported_pwm, return "not-found" condition as NULL, not 0, per general pointer usage recommendations.

In pwm_start, added code to ensure NUL-termination of the key.

In pwm_disable, there's a path that doesn't set prev_pwm and can leave it NULL.  It being NULL seems to indicate a "first-time" flag, for when the first item in the list is matched. If the search should be terminated after finding device "key", should break be used?  Reasonably, a device named "key" should only be found once in the tree, but as coded, it seems that this search loop might find it more than once.  

In pwm_set_polarity, the original length of the buffer as 5 will cover positive 16-bit integers, but not room for a trailing NUL byte.  If accidently negative, a size of 7 will include room for the sign without breaking.
 2013-08-16 09:54:26 -07:00
Justin Cooper
a322ddc2c0 fix for polarity not getting set properly, add polarity as optional parameter in start 2013-08-15 03:55:08 +00:00
Justin Cooper
5f865a1b6c remove unused variables 2013-08-12 21:28:46 +00:00
Justin Cooper
bd1c99bf93 bump version to 0.0.15 2013-08-12 21:27:08 +00:00
Justin Cooper
210693200a bump version to 0.0.14 and update changelog 2013-08-12 21:26:06 +00:00
Justin Cooper
b9c2b3d6d7 Fix PWM duty cycle so 0 is off and 100 is on. Set polarity to 0 by default. 2013-08-12 21:25:51 +00:00
Chris Desjardins
6f2e0cf26a Fix compiler error in gpio_set_value 2013-08-09 10:06:36 +02:00
Chris Desjardins
af62a5c9c9 Adding common.h to event_gpio.c 2013-08-09 10:01:29 +02:00
Chris Desjardins
10229240e4 The test_direction_readback fails, because gpio_get_direction wasn't properly null terminating the direction string 2013-08-09 09:57:56 +02:00
Chris Desjardins
d80be61311 Increase buffer size of filenames for value, direction, and edge files 2013-08-08 13:35:21 +02:00
Chris Desjardins
6d4aa520e6 Give extra buffer space in export, and unexport functions for gpio that are more than 2 digits 2013-08-08 12:56:21 +02:00
Justin Cooper
670bfcbf1c better error handling of load_device_tree through adc, pwm, and uart 2013-07-30 19:34:24 +00:00
Zach Thorson
b313f8bcfc - Removed type in python export 2013-07-29 16:59:49 -05:00
Zach Thorson
d30657c1ae - Fixed broke GPIO.gpio_function() It should now allow calls with the IO Name 
- Added unit tests for GPIO.gpio_function()
 2013-07-29 16:53:11 -05:00
Justin Cooper
fb56ad916e bump version to 0.0.13 2013-07-26 17:58:42 +00:00
Justin Cooper
6ab0c0da49 Merge pull request #15 from amscins/master 
Pass the name of the GPIO to callbacks rather than the GPIO number.
 2013-07-26 10:55:46 -07:00
Justin Cooper
2047922902 bump version for pypi issue 2013-07-26 17:52:26 +00:00
Chris Desjardins
b412e17e6c Remove the gpio parameter from callbacks (it is useless) 2013-07-26 18:05:00 +02:00
Chris Desjardins
7b18706531 Fix bug in sizeof() 2013-07-26 17:55:35 +02:00
Chris Desjardins
089141070c Add type for channel argument 2013-07-26 17:43:51 +02:00
Chris Desjardins
f82caf8f35 Update the code to invoke callback with the channel 2013-07-26 17:31:04 +02:00
Justin Cooper
0b45f8d36c add small delay after loading any device tree overlays 2013-07-24 02:39:16 +00:00
Justin Cooper
004530a91c remove debug statements, add device names 2013-07-23 20:40:22 +00:00
Justin Cooper
ffc58aee30 further support for UART exporting 2013-07-22 21:38:24 +00:00
Justin Cooper
b829cc4132 initial support to export uart 2013-07-22 21:04:29 +00:00
Justin Cooper
ee45a94e2f bump to 0.0.11 2013-07-22 21:04:17 +00:00
Justin Cooper
691efb8eaf fix for issue 14, seg faults with gpio events 2013-07-18 21:16:00 +00:00
Justin Cooper
5f50ae9c01 fix for spi overlays 2013-07-17 18:22:03 +00:00
Justin Cooper
5c09f8915a fix for ADC segmentation faults, bump to 0.0.9 2013-07-09 20:13:47 +00:00
Justin Cooper
2a7643a7b1 temp remove overlay compilation 2013-07-03 16:59:11 +00:00
Justin Cooper
826ca2c41c more SPI code, not working as of yet 2000-01-01 10:28:44 +00:00
Justin Cooper
c8b2057e1e update copyright 2000-01-01 10:28:25 +00:00
Justin Cooper
a17284d4bf update copyright notices 2013-07-01 21:01:58 +00:00
Justin Cooper
ab6dab6519 fix tests, initial non-working spi, refactor loading device tree 2000-01-01 00:06:09 +00:00
Justin Cooper
9f679aad42 bump to 0.0.6 for i2c 2000-01-01 00:51:45 +00:00
Justin Cooper
de7186368f rename BBIO to Adafruit_BBIO 2013-06-27 02:50:45 +00:00
Justin Cooper
5df7f2fe10 update for pip and easy_install 2013-06-26 15:38:34 +00:00
Justin Cooper
f85ce1217a update installation to support pip and easy_install 2013-06-26 01:32:16 +00:00