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author | Chris Johns <chrisj@rtems.org> | 2017-12-23 18:18:56 +1100 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-01-25 08:45:26 +0100 |
commit | 2afb22b7e1ebcbe40373ff7e0efae7d207c655a9 (patch) | |
tree | 44759efe9374f13200a97e96d91bd9a2b7e5ce2a /bsps/include/libchip/disp_hcms29xx.h | |
parent | MAINTAINERS: Add myself to Write After Approval. (diff) | |
download | rtems-2afb22b7e1ebcbe40373ff7e0efae7d207c655a9.tar.bz2 |
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.
Diffstat (limited to 'bsps/include/libchip/disp_hcms29xx.h')
-rw-r--r-- | bsps/include/libchip/disp_hcms29xx.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/bsps/include/libchip/disp_hcms29xx.h b/bsps/include/libchip/disp_hcms29xx.h new file mode 100644 index 0000000000..84b74b6910 --- /dev/null +++ b/bsps/include/libchip/disp_hcms29xx.h @@ -0,0 +1,156 @@ +/*===============================================================*\ +| Project: display driver for HCMS29xx | ++-----------------------------------------------------------------+ +| File: disp_hcms29xx.h | ++-----------------------------------------------------------------+ +| Copyright (c) 2008 | +| Embedded Brains GmbH | +| Obere Lagerstr. 30 | +| D-82178 Puchheim | +| Germany | +| rtems@embedded-brains.de | ++-----------------------------------------------------------------+ +| The license and distribution terms for this file may be | +| found in the file LICENSE in this distribution or at | +| http://www.rtems.org/license/LICENSE. | ++-----------------------------------------------------------------+ +| this file declares the SPI based driver for a HCMS29xx 4 digit | +| alphanumeric LED display | +\*===============================================================*/ + +#ifndef _DISP_HCMS29XX_H +#define _DISP_HCMS29XX_H +#include <rtems.h> +#include <time.h> + +#ifdef __cplusplus +extern "C" { +#endif +#define DISP_HCMS29XX_TEXT_CNT (128) + + typedef struct { + rtems_device_minor_number minor; /* minor device number */ + /* + * in the disp_buffer, the string to be displayed is placed + */ + char disp_buffer[DISP_HCMS29XX_TEXT_CNT]; + int disp_buf_cnt; /* number of valid chars in disp_buffer */ + /* + * in the trns buffer the string is transfered to display task + */ + char trns_buffer[DISP_HCMS29XX_TEXT_CNT]; + /* + * in the dev_buffer, characters will be accumulated before display... + */ + char dev_buffer[DISP_HCMS29XX_TEXT_CNT]; + int dev_buf_cnt; /* number of valid chars in dev_buffer */ + + rtems_id trns_sema_id; /* ID of disp trns buffer sema */ + rtems_id task_id; /* ID of disp task */ + bool rotate; /* FLAG: display is upside down */ + } spi_disp_hcms29xx_param_t; + + typedef struct { + rtems_libi2c_drv_t libi2c_drv_entry; + spi_disp_hcms29xx_param_t disp_param; + } disp_hcms29xx_drv_t; + /* + * pass this descriptor pointer to rtems_libi2c_register_drv + */ + extern rtems_libi2c_drv_t *disp_hcms29xx_driver_descriptor; + +/*=========================================================================*\ +| Function: | +\*-------------------------------------------------------------------------*/ +rtems_device_driver disp_hcms29xx_dev_initialize + ( +/*-------------------------------------------------------------------------*\ +| Purpose: | +| prepare the display device driver to accept write calls | +| register device with its name | ++---------------------------------------------------------------------------+ +| Input Parameters: | +\*-------------------------------------------------------------------------*/ + rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg + ); +/*-------------------------------------------------------------------------*\ +| Return Value: | +| rtems_status_code | +\*=========================================================================*/ + +/*=========================================================================*\ +| Function: | +\*-------------------------------------------------------------------------*/ +rtems_device_driver disp_hcms29xx_dev_open +( +/*-------------------------------------------------------------------------*\ +| Purpose: | +| open the display device | ++---------------------------------------------------------------------------+ +| Input Parameters: | +\*-------------------------------------------------------------------------*/ + rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg + ); +/*-------------------------------------------------------------------------*\ +| Return Value: | +| rtems_status_code | +\*=========================================================================*/ + +/*=========================================================================*\ +| Function: | +\*-------------------------------------------------------------------------*/ +rtems_device_driver disp_hcms29xx_dev_write +( +/*-------------------------------------------------------------------------*\ +| Purpose: | +| write to display device | ++---------------------------------------------------------------------------+ +| Input Parameters: | +\*-------------------------------------------------------------------------*/ + rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg + ); +/*-------------------------------------------------------------------------*\ +| Return Value: | +| rtems_status_code | +\*=========================================================================*/ + +/*=========================================================================*\ +| Function: | +\*-------------------------------------------------------------------------*/ +rtems_device_driver disp_hcms29xx_dev_close +( +/*-------------------------------------------------------------------------*\ +| Purpose: | +| close the display device | ++---------------------------------------------------------------------------+ +| Input Parameters: | +\*-------------------------------------------------------------------------*/ + rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg + ); +/*-------------------------------------------------------------------------*\ +| Return Value: | +| rtems_status_code | +\*=========================================================================*/ + +#define DISP_HCMS29XX_DRIVER { \ + disp_hcms29xx_dev_initialize, \ + disp_hcms29xx_dev_open, \ + NULL, \ + disp_hcms29xx_dev_write, \ + NULL, \ + disp_hcms29xx_dev_close} + + +#ifdef __cplusplus +} +#endif + +#endif /* _DISP_HCMS29XX_H */ |