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--- /dev/null
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functionality.
<center>
-C API Modules | C++ API Classes
-:-------------------:|:-------------------:
- @ref gpio.h "gpio" | @ref maa::Gpio "Gpio class"
- @ref i2c.h "i2c" | @ref maa::I2c "I2c class"
- @ref aio.h "aio" | @ref maa::Aio "Aio class"
- @ref pwm.h "pwm" | @ref maa::Pwm "Pwm class"
- @ref spi.h "spi" | @ref maa::Spi "Spi class"
- @ref maa.h "maa" | @ref maa.h "maa"
+| C API Modules | C++ API Classes |
+|:-------------------:|:---------------------------:|
+| @ref gpio.h "gpio" | @ref maa::Gpio "Gpio class" |
+| @ref i2c.h "i2c" | @ref maa::I2c "I2c class" |
+| @ref aio.h "aio" | @ref maa::Aio "Aio class" |
+| @ref pwm.h "pwm" | @ref maa::Pwm "Pwm class" |
+| @ref spi.h "spi" | @ref maa::Spi "Spi class" |
+| @ref maa.h "maa" | @ref maa.h "maa" |
</center>
### Hello Maa
@snippet hellomaa.c Interesting
-### Basic GPIO
-@snippet gpio_read6.c Interesting
-
-### Basic PWM
-@snippet cycle-pwm3.c Interesting
-
-### Basic I2C
-@snippet analogin_a0.c Interesting
-
-### Basic AIO
-@snippet analogin_a0.c Interesting
-
-### Basic SPI
-@snippet spi_mcp4261.c Interesting
-
## Supported platforms
-- Galileo (Fab D)
+Specific platform information for supported platforms is documented here:
+
+- @ref galileorevd
### ENV RECOMENDATIONS
## COMPILING
-mkdir build/
-cmake -i ..
-make
+More information on compiling is @ref building page
-## DEVELOPMENT
+## CONTRIBUTING
-Please fork the code on github and then send pull requests. Please avoid merges
-in your forks. I will also accept patches sent in git style with signoffs to
-brendan.le.foll@intel.com
+Please see the @ref contributing page
## API Changelog
#pragma once
/** @file
*
- * This file defines the aio (analog in) interface for libmaa
+ * @brief Analog input/output
*
+ * AIO is the anlog input & output interface to libmaa. It is used to read or
+ * set the voltage applied to an AIO pin.
+ *
+ * @snippet analogin_a0.c Interesting
*/
#ifdef __cplusplus
#define ADC_SUPPORTED_RESOLUTION_BITS (10)
/**
- * Opaque pointer definition to the internal struct _aio
+ * Opaque pointer definition to the internal struct _aio. This context refers
+ * to one single AIO pin on the board.
*/
typedef struct _aio* maa_aio_context;
/** @file
*
- * This file defines the gpio interface for libmaa
+ * @brief General Purpose IO
*
+ * GPIO is the General Purpose IO interface to libmaa. It's features depends on
+ * the board type used, it can use gpiolibs (exported via a kernel module
+ * through sysfs), or memory mapped IO via a /dev/uio device or /dev/mem
+ * depending again on the board configuratio, or memory mapped IO via a
+ * /dev/uio device or /dev/mem depending again on the board configuration.
+ *
+ * @snippet gpio_read6.c Interesting
*/
#ifdef __cplusplus
/** @file
*
- * This file defines the i2c interface for libmaa
+ * @brief Inter-Integrated Circuit
*
+ * This file defines the i2c/Iic interface for libmaa. A context represents a
+ * bus and that bus may contain multiple addresses or i2c slaves. It is
+ * considered best practice to make sure the address is correct before doing
+ * any calls on i2c, in case another application or even thread changed the
+ * addres on that bus. Multiple instances of the same bus can exist.
+ *
+ * @snippet i2c_HMC5883L.c Interesting
*/
#ifdef __cplusplus
/** @file
*
- * This file defines the pwm interface for libmaa
+ * @brief Pulse Width Modulation module
*
+ * PWM is the Pulse Width Modulation interface to libmaa. It allows the
+ * generation of a signal on a pin. Some boards may have higher or lower levels
+ * of resolution so make sure you check the board & pin you are using before
+ * hand.
+ *
+ * @snippet cycle-pwm3.c Interesting
*/
#ifdef __cplusplus
/** @file
*
+ * @brief System Packet Interface
+ *
* This file defines the spi interface for libmaa
*
+ * @snippet spi_mcp4261.c Interesting
*/
#ifdef __cplusplus
--- /dev/null
+Building libmaa {#building}
+===============
+
+libmaa uses cmake in order to make compilation relatively painless. Cmake runs
+build out of tree so the recommended way is to clone from git and make a build/ directory.
+
+~~~~~~~~~~~~~{.sh}
+mkdir build
+cd build
+cmake ..
+make
+~~~~~~~~~~~~~
+
+Our cmake configure has a number of options, `cmake -i` will ask you all sorts
+of interesting questions, you can disable swig modules, build documentation
+etc...
+
+Few recommended options:
+Changing install path from /usr/local to /usr
+-DCMAKE_INSTALL_PREFIX:PATH=/usr
+
+Building debug build:
+-DCMAKE_BUILD_TYPE=DEBUG
+
+Using clang instead of gcc:
+ -DCMAKE_C_COMPILER=/usr/bin/clang -DCMAKE_CXX_COMPILER=/usr/bin/clang
+
--- /dev/null
+Contributing to libmaa {#contributing}
+======================
+
+libmaa is an opensource project and we are actively looking for people to help
+with:
+
+- Writing platform supports for all types of embedded boards running linux
+- People to write cool samples
+- People to extend the functionality
+
+The recommended method to contribute is to fork on github, and then send pull
+requests to the main project. Questions can be also be asked and issues raised
+on github.
+
+If you'd rather not use github you are more than welcome to send git formatted
+patches to brendan.le.foll@intel.com.
+
--- /dev/null
+Galileo Rev D {#galileorevd}
+=============
+
+Galileo is a microcontroller board based on the Intel® Quark SoC X1000
+Application Processor, a 32-bit Intel Pentium-class system on a chip.
+
+The rev D board has the following limitations in libmaa:
+
+- gpio register access via /dev/uio is limited to pin2 and 3
+- gpio interupts will only work on GPIO_EDGE_BOTH
*/
#include <unistd.h>
-
+//! [Interesting]
#include "aio.h"
int main ()
maa_aio_context adc_a0;
uint16_t adc_value = 0;
-//! [Interesting]
adc_a0 = maa_aio_init(0);
if (adc_a0 == NULL) {
return 1;
}
maa_aio_close(adc_a0);
-//! [Interesting]
return MAA_SUCCESS;
}
+//! [Interesting]
*/
#include "stdio.h"
-
+//! [Interesting]
#include "maa.h"
int
main(int argc, char **argv)
{
-//! [Interesting]
fprintf(stdout, "hello maa\n Version: %s\n", maa_get_version());
return 0;
-//! [Interesting]
}
+//! [Interesting]
projects / contrib / mraa.git / commitdiff