source: rtems/bsps/arm/stm32f4/include/bsp/stm32_usart.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: 4.1 KB
Line 
1/**
2 * @file
3 * @ingroup stm32_usart
4 * @brief STM32 USART support
5 */
6
7/*
8 * Copyright (c) 2012 Sebastian Huber.  All rights reserved.
9 *
10 *  embedded brains GmbH
11 *  Obere Lagerstr. 30
12 *  82178 Puchheim
13 *  Germany
14 *  <rtems@embedded-brains.de>
15 *
16 * The license and distribution terms for this file may be
17 * found in the file LICENSE in this distribution or at
18 * http://www.rtems.org/license/LICENSE.
19 */
20
21#ifndef LIBBSP_ARM_STM32F4_STM32_USART_H
22#define LIBBSP_ARM_STM32F4_STM32_USART_H
23
24#include <bsp/utility.h>
25
26/**
27 * @defgroup stm32_usart STM32 USART Support
28 * @ingroup stm32f4_usart
29 * @brief STM32 USART Support
30 * @{
31 */
32
33typedef struct {
34        uint32_t sr;
35#define STM32F4_USART_SR_CTS BSP_BIT32(9)
36#define STM32F4_USART_SR_LBD BSP_BIT32(8)
37#define STM32F4_USART_SR_TXE BSP_BIT32(7)
38#define STM32F4_USART_SR_TC BSP_BIT32(6)
39#define STM32F4_USART_SR_RXNE BSP_BIT32(5)
40#define STM32F4_USART_SR_IDLE BSP_BIT32(4)
41#define STM32F4_USART_SR_ORE BSP_BIT32(3)
42#define STM32F4_USART_SR_NF BSP_BIT32(2)
43#define STM32F4_USART_SR_FE BSP_BIT32(1)
44#define STM32F4_USART_SR_PE BSP_BIT32(0)
45        uint32_t dr;
46#define STM32F4_USART_DR(val) BSP_FLD32(val, 0, 7)
47#define STM32F4_USART_DR_GET(reg) BSP_FLD32GET(reg, 0, 7)
48#define STM32F4_USART_DR_SET(reg, val) BSP_FLD32SET(reg, val, 0, 7)
49        uint32_t bbr;
50#define STM32F4_USART_BBR_DIV_MANTISSA(val) BSP_FLD32(val, 4, 15)
51#define STM32F4_USART_BBR_DIV_MANTISSA_GET(reg) BSP_FLD32GET(reg, 4, 15)
52#define STM32F4_USART_BBR_DIV_MANTISSA_SET(reg, val) BSP_FLD32SET(reg, val, 4, 15)
53#define STM32F4_USART_BBR_DIV_FRACTION(val) BSP_FLD32(val, 0, 3)
54#define STM32F4_USART_BBR_DIV_FRACTION_GET(reg) BSP_FLD32GET(reg, 0, 3)
55#define STM32F4_USART_BBR_DIV_FRACTION_SET(reg, val) BSP_FLD32SET(reg, val, 0, 3)
56        uint32_t cr1;
57#define STM32F4_USART_CR1_OVER8 BSP_BIT32(15)
58#define STM32F4_USART_CR1_UE BSP_BIT32(13)
59#define STM32F4_USART_CR1_M BSP_BIT32(12)
60#define STM32F4_USART_CR1_WAKE BSP_BIT32(11)
61#define STM32F4_USART_CR1_PCE BSP_BIT32(10)
62#define STM32F4_USART_CR1_PS BSP_BIT32(9)
63#define STM32F4_USART_CR1_PEIE BSP_BIT32(8)
64#define STM32F4_USART_CR1_TXEIE BSP_BIT32(7)
65#define STM32F4_USART_CR1_TCIE BSP_BIT32(6)
66#define STM32F4_USART_CR1_RXNEIE BSP_BIT32(5)
67#define STM32F4_USART_CR1_IDLEIE BSP_BIT32(4)
68#define STM32F4_USART_CR1_TE BSP_BIT32(3)
69#define STM32F4_USART_CR1_RE BSP_BIT32(2)
70#define STM32F4_USART_CR1_RWU BSP_BIT32(1)
71#define STM32F4_USART_CR1_SBK BSP_BIT32(0)
72        uint32_t cr2;
73#define STM32F4_USART_CR2_LINEN BSP_BIT32(14)
74#define STM32F4_USART_CR2_STOP(val) BSP_FLD32(val, 12, 13)
75#define STM32F4_USART_CR2_STOP_GET(reg) BSP_FLD32GET(reg, 12, 13)
76#define STM32F4_USART_CR2_STOP_SET(reg, val) BSP_FLD32SET(reg, val, 12, 13)
77#define STM32F4_USART_CR2_CLKEN BSP_BIT32(11)
78#define STM32F4_USART_CR2_CPOL BSP_BIT32(10)
79#define STM32F4_USART_CR2_CPHA BSP_BIT32(9)
80#define STM32F4_USART_CR2_LBCL BSP_BIT32(8)
81#define STM32F4_USART_CR2_LBDIE BSP_BIT32(6)
82#define STM32F4_USART_CR2_LBDL BSP_BIT32(5)
83#define STM32F4_USART_CR2_ADD(val) BSP_FLD32(val, 0, 3)
84#define STM32F4_USART_CR2_ADD_GET(reg) BSP_FLD32GET(reg, 0, 3)
85#define STM32F4_USART_CR2_ADD_SET(reg, val) BSP_FLD32SET(reg, val, 0, 3)
86        uint32_t cr3;
87#define STM32F4_USART_CR3_ONEBIT BSP_BIT32(11)
88#define STM32F4_USART_CR3_CTSIE BSP_BIT32(10)
89#define STM32F4_USART_CR3_CTSE BSP_BIT32(9)
90#define STM32F4_USART_CR3_RTSE BSP_BIT32(8)
91#define STM32F4_USART_CR3_DMAT BSP_BIT32(7)
92#define STM32F4_USART_CR3_DMAR BSP_BIT32(6)
93#define STM32F4_USART_CR3_SCEN BSP_BIT32(5)
94#define STM32F4_USART_CR3_NACK BSP_BIT32(4)
95#define STM32F4_USART_CR3_HDSEL BSP_BIT32(3)
96#define STM32F4_USART_CR3_IRLP BSP_BIT32(2)
97#define STM32F4_USART_CR3_IREN BSP_BIT32(1)
98#define STM32F4_USART_CR3_EIE BSP_BIT32(0)
99        uint32_t gtpr;
100#define STM32F4_USART_GTPR_GT(val) BSP_FLD32(val, 8, 15)
101#define STM32F4_USART_GTPR_GT_GET(reg) BSP_FLD32GET(reg, 8, 15)
102#define STM32F4_USART_GTPR_GT_SET(reg, val) BSP_FLD32SET(reg, val, 8, 15)
103#define STM32F4_USART_GTPR_PSC(val) BSP_FLD32(val, 0, 7)
104#define STM32F4_USART_GTPR_PSC_GET(reg) BSP_FLD32GET(reg, 0, 7)
105#define STM32F4_USART_GTPR_PSC_SET(reg, val) BSP_FLD32SET(reg, val, 0, 7)
106} stm32f4_usart;
107
108/** @} */
109
110#endif /* LIBBSP_ARM_STM32F4_STM32_USART_H */
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