source: rtems/bsps/powerpc/include/mpc83xx/gtm.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: 1.8 KB
Line 
1/**
2 * @file
3 *
4 * @brief Header file for timer functions.
5 */
6
7/*
8 * Copyright (c) 2008
9 * Embedded Brains GmbH
10 * Obere Lagerstr. 30
11 * D-82178 Puchheim
12 * Germany
13 * rtems@embedded-brains.de
14 *
15 * The license and distribution terms for this file may be
16 * found in the file LICENSE in this distribution or at
17 * http://www.rtems.org/license/LICENSE.
18 */
19
20#ifndef LIBBSP_POWERPC_MPC83XX_TIMER_H
21#define LIBBSP_POWERPC_MPC83XX_TIMER_H
22
23#include <stdint.h>
24#include <stdbool.h>
25
26#include <rtems.h>
27
28#define MPC83XX_GTM_NUMBER 8
29
30#define MPC83XX_GTM_CLOCK_CASCADED 0x0000
31#define MPC83XX_GTM_CLOCK_SYSTEM 0x0002
32#define MPC83XX_GTM_CLOCK_SYSTEM_SLOW 0x0004
33#define MPC83XX_GTM_CLOCK_EXTERN 0x0006
34
35rtems_status_code mpc83xx_gtm_initialize( int timer, int clock);
36
37rtems_status_code mpc83xx_gtm_enable_restart( int timer, bool enable);
38
39rtems_status_code mpc83xx_gtm_set_clock( int timer, int clock);
40
41rtems_status_code mpc83xx_gtm_get_clock( int timer, int *clock);
42
43rtems_status_code mpc83xx_gtm_start( int timer);
44
45rtems_status_code mpc83xx_gtm_stop( int timer);
46
47rtems_status_code mpc83xx_gtm_set_value( int timer, uint16_t value);
48
49rtems_status_code mpc83xx_gtm_get_value( int timer, uint16_t *value);
50
51rtems_status_code mpc83xx_gtm_set_reference( int timer, uint16_t reference);
52
53rtems_status_code mpc83xx_gtm_get_reference( int timer, uint16_t *reference);
54
55rtems_status_code mpc83xx_gtm_set_prescale( int timer, uint8_t prescale);
56
57rtems_status_code mpc83xx_gtm_get_prescale( int timer, uint8_t *prescale);
58
59rtems_status_code mpc83xx_gtm_interrupt_get_vector( int timer, rtems_vector_number *vector);
60
61rtems_status_code mpc83xx_gtm_interrupt_enable( int timer);
62
63rtems_status_code mpc83xx_gtm_interrupt_disable( int timer);
64
65rtems_status_code mpc83xx_gtm_interrupt_clear( int timer);
66
67#endif /* LIBBSP_POWERPC_MPC83XX_TIMER_H */
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