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Diffstat (limited to 'include/libchip/spi-memdrv.h')
| -rw-r--r-- | include/libchip/spi-memdrv.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/include/libchip/spi-memdrv.h b/include/libchip/spi-memdrv.h new file mode 100644 index 0000000000..ed4aa55b6f --- /dev/null +++ b/include/libchip/spi-memdrv.h @@ -0,0 +1,90 @@ +/*===============================================================*\ +| Project: SPI driver for spi memory devices | ++-----------------------------------------------------------------+ +| 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. | +| | ++-----------------------------------------------------------------+ +\*===============================================================*/ + + +#ifndef _LIBCHIP_SPI_MEMDRV_H +#define _LIBCHIP_SPI_MEMDRV_H + +#include <rtems/libi2c.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/*=========================================================================*\ +| Function: | +\*-------------------------------------------------------------------------*/ +rtems_status_code spi_memdrv_write +( +/*-------------------------------------------------------------------------*\ +| Purpose: | +| write a block of data to memory | ++---------------------------------------------------------------------------+ +| Input Parameters: | +\*-------------------------------------------------------------------------*/ + rtems_device_major_number major, /* major device number */ + rtems_device_major_number minor, /* minor device number */ + void *arg /* ptr to write argument struct */ + ); +/*-------------------------------------------------------------------------*\ +| Return Value: | +| o = ok or error code | +\*=========================================================================*/ + +/*=========================================================================*\ +| Function: | +\*-------------------------------------------------------------------------*/ +rtems_status_code spi_memdrv_read +( +/*-------------------------------------------------------------------------*\ +| Purpose: | +| read a block of data from memory | ++---------------------------------------------------------------------------+ +| Input Parameters: | +\*-------------------------------------------------------------------------*/ + rtems_device_major_number major, /* major device number */ + rtems_device_major_number minor, /* minor device number */ + void *arg /* ptr to read argument struct */ + ); +/*-------------------------------------------------------------------------*\ +| Return Value: | +| o = ok or error code | +\*=========================================================================*/ + + typedef struct { + uint32_t baudrate; /* tfr rate, bits per second */ + bool erase_before_program; + uint32_t empty_state; /* value of erased cells */ + uint32_t page_size; /* programming page size in byte */ + uint32_t sector_size; /* erase sector size in byte */ + uint32_t mem_size; /* total capacity in byte */ + } spi_memdrv_param_t; + + typedef struct { + rtems_libi2c_drv_t libi2c_drv_entry; /* general i2c/spi params */ + spi_memdrv_param_t spi_memdrv_param; /* private parameters */ + } spi_memdrv_t; + + extern rtems_driver_address_table spi_memdrv_rw_ops; + extern rtems_driver_address_table spi_memdrv_ro_ops; + +#ifdef __cplusplus +} +#endif + +#endif /* _LIBCHIP_SPI_MEMDRV_H */ |