forked from Imagelibrary/rtems
70 lines
2.8 KiB
C
70 lines
2.8 KiB
C
/*===============================================================*\
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| Project: display driver for HCMS29xx |
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+-----------------------------------------------------------------+
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| File: disp_hcms29xx.h |
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+-----------------------------------------------------------------+
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| Copyright (c) 2008 |
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| Embedded Brains GmbH |
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| Obere Lagerstr. 30 |
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| D-82178 Puchheim |
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| Germany |
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| rtems@embedded-brains.de |
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+-----------------------------------------------------------------+
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| The license and distribution terms for this file may be |
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| found in the file LICENSE in this distribution or at |
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| http://www.rtems.com/license/LICENSE. |
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+-----------------------------------------------------------------+
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| this file declares the SPI based driver for a HCMS29xx 4 digit |
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| alphanumeric LED display |
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+-----------------------------------------------------------------+
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| $Id$
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\*===============================================================*/
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#ifndef _DISP_HCMS29XX_H
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#define _DISP_HCMS29XX_H
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#include <rtems.h>
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#include <time.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define DISP_HCMS29XX_TEXT_CNT (128)
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typedef struct {
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rtems_device_major_number minor; /* minor device number */
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/*
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* in the disp_buffer, the string to be displayed is placed
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*/
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char disp_buffer[DISP_HCMS29XX_TEXT_CNT];
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int disp_buf_cnt; /* number of valid chars in disp_buffer */
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/*
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* in the trns buffer the string is transfered to display task
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*/
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char trns_buffer[DISP_HCMS29XX_TEXT_CNT];
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/*
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* in the dev_buffer, characters will be accumulated before display...
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*/
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char dev_buffer[DISP_HCMS29XX_TEXT_CNT];
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int dev_buf_cnt; /* number of valid chars in dev_buffer */
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rtems_id trns_sema_id; /* ID of disp trns buffer sema */
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rtems_id task_id; /* ID of disp task */
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bool rotate; /* FLAG: display is upside down */
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} spi_disp_hcms29xx_param_t;
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typedef struct {
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rtems_libi2c_drv_t libi2c_drv_entry;
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spi_disp_hcms29xx_param_t disp_param;
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} disp_hcms29xx_drv_t;
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/*
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* pass this descriptor pointer to rtems_libi2c_register_drv
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*/
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extern rtems_libi2c_drv_t *disp_hcms29xx__driver_descriptor;
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#ifdef __cplusplus
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}
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#endif
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#endif /* _DISP_HCMS29XX_H */
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