diff options
Diffstat (limited to 'c/src/lib/libbsp/arm/atsam/include/atsam-spi.h')
| -rw-r--r-- | c/src/lib/libbsp/arm/atsam/include/atsam-spi.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/atsam/include/atsam-spi.h b/c/src/lib/libbsp/arm/atsam/include/atsam-spi.h new file mode 100644 index 0000000000..a7cf5834d4 --- /dev/null +++ b/c/src/lib/libbsp/arm/atsam/include/atsam-spi.h @@ -0,0 +1,61 @@ +/* + * Copyright (c) 2016 embedded brains GmbH. All rights reserved. + * + * embedded brains GmbH + * Dornierstr. 4 + * 82178 Puchheim + * Germany + * <info@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 LIBBSP_ARM_ATSAM_ATSAM_SPI_H +#define LIBBSP_ARM_ATSAM_ATSAM_SPI_H + +#include <libchip/chip.h> +#include <libchip/include/pio.h> + +#include <bsp.h> +#include <dev/spi/spi.h> + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +#define DEFAULT_SPI0_CS 0 +#define DEFAULT_SPI_CLOCK 500000 + +#define REGISTER_COMMAND_LENGTH 2 + +typedef struct { + spi_bus base; + Spi *regs; + rtems_vector_number irq; + uint32_t board_id; + uint32_t msg_todo; + const spi_ioc_transfer *msgs; + rtems_id task_id; + sXdmad Dma; + Spid SpiDma; + uint32_t dma_tx_channel; + uint32_t dma_rx_channel; + bool rx_transfer_done; + bool tx_transfer_done; +} atsam_spi_bus; + +int spi_bus_register_atsam( + const char *bus_path, + Spi *register_base, + rtems_vector_number irq, + size_t pin_amount, + const Pin *pins +); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* LIBBSP_ARM_ATSAM_ATSAM_SPI_H */ |