mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-12-15 02:34:33 -05:00
91 lines
3.6 KiB
Plaintext
91 lines
3.6 KiB
Plaintext
|
/*
|
||
|
|
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
|
||
|
|
2011,2012,2013 Giovanni Di Sirio.
|
||
|
|
|
||
|
|
This file is part of ChibiOS/RT.
|
||
|
|
|
||
|
|
ChibiOS/RT 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 3 of the License, or
|
||
|
|
(at your option) any later version.
|
||
|
|
|
||
|
|
ChibiOS/RT 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, see <http://www.gnu.org/licenses/>.
|
||
|
|
|
||
|
|
---
|
||
|
|
|
||
|
|
A special exception to the GPL can be applied should you wish to distribute
|
||
|
|
a combined work that includes ChibiOS/RT, without being obliged to provide
|
||
|
|
the source code for any proprietary components. See the file exception.txt
|
||
|
|
for full details of how and when the exception can be applied.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @defgroup IO HAL
|
||
|
|
* @brief Hardware Abstraction Layer.
|
||
|
|
* @details Under ChibiOS/RT the set of the various device driver interfaces
|
||
|
|
* is called the HAL subsystem: Hardware Abstraction Layer. The HAL is the
|
||
|
|
* abstract interface between ChibiOS/RT application and hardware.
|
||
|
|
*
|
||
|
|
* @section hal_device_driver_arch HAL Device Drivers Architecture
|
||
|
|
* A device driver is usually split in two layers:
|
||
|
|
* - High Level Device Driver (<b>HLD</b>). This layer contains the definitions
|
||
|
|
* of the driver's APIs and the platform independent part of the driver.<br>
|
||
|
|
* An HLD is composed by two files:
|
||
|
|
* - @p @<driver@>.c, the HLD implementation file. This file must be
|
||
|
|
* included in the Makefile in order to use the driver.
|
||
|
|
* - @p @<driver@>.h, the HLD header file. This file is implicitly
|
||
|
|
* included by the HAL header file @p hal.h.
|
||
|
|
* .
|
||
|
|
* - Low Level Device Driver (<b>LLD</b>). This layer contains the platform
|
||
|
|
* dependent part of the driver.<br>
|
||
|
|
* A LLD is composed by two files:
|
||
|
|
* - @p @<driver@>_lld.c, the LLD implementation file. This file must be
|
||
|
|
* included in the Makefile in order to use the driver.
|
||
|
|
* - @p @<driver@>_lld.h, the LLD header file. This file is implicitly
|
||
|
|
* included by the HLD header file.
|
||
|
|
* .
|
||
|
|
* The LLD may be not present in those drivers that do not access the
|
||
|
|
* hardware directly but through other device drivers, as example the
|
||
|
|
* MMC_SPI driver uses the SPI and PAL drivers in order to implement
|
||
|
|
* its functionalities.
|
||
|
|
* .
|
||
|
|
* @subsection hal_device_driver_diagram Diagram
|
||
|
|
* @dot
|
||
|
|
digraph example {
|
||
|
|
graph [size="5, 7", pad="1.5, 0"];
|
||
|
|
node [shape=rectangle, fontname=Helvetica, fontsize=8,
|
||
|
|
fixedsize="true", width="2.0", height="0.4"];
|
||
|
|
edge [fontname=Helvetica, fontsize=8];
|
||
|
|
|
||
|
|
app [label="Application"];
|
||
|
|
hld [label="High Level Driver"];
|
||
|
|
lld [label="Low Level Driver"];
|
||
|
|
hw [label="Microcontroller Hardware"];
|
||
|
|
hal_lld [label="HAL shared low level code"];
|
||
|
|
|
||
|
|
app->hld;
|
||
|
|
hld->lld;
|
||
|
|
lld-> hw;
|
||
|
|
lld->hal_lld;
|
||
|
|
hal_lld->hw;
|
||
|
|
}
|
||
|
|
* @enddot
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @defgroup HAL_CONF Configuration
|
||
|
|
* @brief HAL Configuration.
|
||
|
|
* @details The file @p halconf.h contains the high level settings for all
|
||
|
|
* the drivers supported by the HAL. The low level, platform dependent,
|
||
|
|
* settings are contained in the @p mcuconf.h file instead and are describe
|
||
|
|
* in the various platforms reference manuals.
|
||
|
|
*
|
||
|
|
* @ingroup IO
|
||
|
|
*/
|