source: rtems/bsps/arm/lpc176x/include/bsp/watchdog-defs.h @ 2afb22b

5
Last change on this file since 2afb22b was 2afb22b, checked in by Chris Johns <chrisj@…>, on 12/23/17 at 07:18:56

Remove make preinstall

A speciality of the RTEMS build system was the make preinstall step. It
copied header files from arbitrary locations into the build tree. The
header files were included via the -Bsome/build/tree/path GCC command
line option.

This has at least seven problems:

  • The make preinstall step itself needs time and disk space.
  • Errors in header files show up in the build tree copy. This makes it hard for editors to open the right file to fix the error.
  • There is no clear relationship between source and build tree header files. This makes an audit of the build process difficult.
  • The visibility of all header files in the build tree makes it difficult to enforce API barriers. For example it is discouraged to use BSP-specifics in the cpukit.
  • An introduction of a new build system is difficult.
  • Include paths specified by the -B option are system headers. This may suppress warnings.
  • The parallel build had sporadic failures on some hosts.

This patch removes the make preinstall step. All installed header
files are moved to dedicated include directories in the source tree.
Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc,
etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g.
erc32, imx, qoriq, etc.

The new cpukit include directories are:

  • cpukit/include
  • cpukit/score/cpu/@RTEMS_CPU@/include
  • cpukit/libnetworking

The new BSP include directories are:

  • bsps/include
  • bsps/@RTEMS_CPU@/include
  • bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include

There are build tree include directories for generated files.

The include directory order favours the most general header file, e.g.
it is not possible to override general header files via the include path
order.

The "bootstrap -p" option was removed. The new "bootstrap -H" option
should be used to regenerate the "headers.am" files.

Update #3254.
  • Property mode set to 100644
File size: 2.1 KB
Line 
1/**
2 * @file watchdog-defs.h
3 *
4 * @ingroup lpc176x
5 *
6 * @brief API definitions of the Watchdog driver for the lpc176x bsp in RTEMS.
7 */
8
9/*
10 * Copyright (c) 2014 Taller Technologies.
11 *
12 * @author  Boretto Martin    (martin.boretto@tallertechnologies.com)
13 * @author  Diaz Marcos (marcos.diaz@tallertechnologies.com)
14 * @author  Lenarduzzi Federico  (federico.lenarduzzi@tallertechnologies.com)
15 * @author  Daniel Chicco  (daniel.chicco@tallertechnologies.com)
16 *
17 * The license and distribution terms for this file may be
18 * found in the file LICENSE in this distribution or at
19 * http://www.rtems.org/license/LICENSE.
20 */
21
22#ifndef LIBBSP_ARM_LPC176X_WATCHDOG_DEFS_H
23#define LIBBSP_ARM_LPC176X_WATCHDOG_DEFS_H
24
25#include <rtems/score/cpu.h>
26#include <bsp.h>
27#include <bspopts.h>
28#include <bsp/utility.h>
29#include <bsp/irq.h>
30#include <bsp/common-types.h>
31
32#ifdef __cplusplus
33extern "C" {
34#endif /* __cplusplus */
35
36#define LPC176X_WDMOD_BASE 0x40000000U
37#define LPC176X_WDFEED_CON 0XAAU
38#define LPC176X_WDFEED_CFG 0X55U
39#define LPC176X_WD_PRESCALER_DIVISOR 4000000U
40#define LPC176X_WWDT_MOD_WDEN BSP_BIT32( 0 )
41#define LPC176X_WWDT_MOD_WDRESET BSP_BIT32( 1 )
42#define LPC176X_WWDT_MOD_WDTOF BSP_BIT32( 2 )
43#define LPC176X_WWDT_MOD_WDINT BSP_BIT32( 3 )
44#define LPC176X_WWDT_CLKSEL_WDSEL_IRC 0x0U
45#define LPC176X_WWDT_CLKSEL_WDSEL_PCLK 0x1U
46#define LPC176X_WWDT_CLKSEL_WDSEL_RTC 0x2U
47#define LPC176X_WD_INTERRUPT_VECTOR_NUMBER 0U
48#define LPC176X_WDMOD ( *(volatile uint32_t *) ( LPC176X_WDMOD_BASE + 0x00U ) )
49#define LPC176X_WDTC ( *(volatile uint32_t *) ( LPC176X_WDMOD_BASE + 0x04U ) )
50#define LPC176X_WDFEED ( *(volatile uint32_t *) ( LPC176X_WDMOD_BASE + \
51                                                  0x08U ) )
52#define LPC176X_WDTV ( *(volatile uint32_t *) ( LPC176X_WDMOD_BASE + 0x0CU ) )
53#define LPC176X_WDCLKSEL ( *(volatile uint32_t *) ( LPC176X_WDMOD_BASE + \
54                                                    0x10U ) )
55
56/**
57 * @brief A function that attends an interruption for a watchdog.
58 */
59typedef rtems_interrupt_handler lpc176x_wd_isr_funct;
60
61#ifdef __cplusplus
62}
63#endif /* __cplusplus */
64
65#endif  /* LIBBSP_ARM_LPC176X_WATCHDOG_DEFS_H */
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