diff options
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 */ |