Include dependency graph for spi.h:
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Data Structures | |
| struct | ove_spi_cfg |
| SPI bus configuration descriptor. More... | |
| struct | ove_spi_cs |
| SPI chip-select descriptor. More... | |
| struct | ove_spi_xfer |
| SPI transfer segment for multi-segment transactions. More... | |
Enumerations | |
| enum | ove_spi_mode_t { OVE_SPI_MODE_0 = 0 , OVE_SPI_MODE_1 = 1 , OVE_SPI_MODE_2 = 2 , OVE_SPI_MODE_3 = 3 } |
| SPI clock polarity / phase mode. More... | |
| enum | ove_spi_bit_order_t { OVE_SPI_MSB_FIRST = 0 , OVE_SPI_LSB_FIRST = 1 } |
| SPI bit order. More... | |
Functions | |
| int | ove_spi_init (ove_spi_t *spi, ove_spi_storage_t *storage, const struct ove_spi_cfg *cfg) |
| Initialise an SPI bus controller with caller-provided storage. | |
| void | ove_spi_deinit (ove_spi_t spi) |
Release an SPI bus handle previously created with ove_spi_init. | |
| int | ove_spi_create (ove_spi_t *spi, const struct ove_spi_cfg *cfg) |
Heap-mode counterpart of ove_spi_init() — allocates storage internally. | |
| void | ove_spi_destroy (ove_spi_t spi) |
Destroy an SPI bus handle previously created with ove_spi_create. | |
| int | ove_spi_transfer (ove_spi_t spi, const struct ove_spi_cs *cs, const void *tx, void *rx, size_t len, uint64_t timeout_ns) |
| Full-duplex SPI transfer. | |
| int | ove_spi_write (ove_spi_t spi, const struct ove_spi_cs *cs, const void *data, size_t len, uint64_t timeout_ns) |
| Write-only SPI transfer (TX only, ignore RX). | |
| int | ove_spi_read (ove_spi_t spi, const struct ove_spi_cs *cs, void *buf, size_t len, uint64_t timeout_ns) |
| Read-only SPI transfer (clock out zeros, capture RX). | |
| int | ove_spi_transfer_seq (ove_spi_t spi, const struct ove_spi_cs *cs, const struct ove_spi_xfer *xfers, unsigned int num_xfers, uint64_t timeout_ns) |
| Multi-segment SPI transfer under a single CS assertion. | |
| int | ove_spi_transfer_async (ove_spi_t spi, const struct ove_spi_cs *cs, const void *tx, void *rx, size_t len, ove_dma_complete_cb cb, void *user_data) |
| Submit an SPI transfer asynchronously and return immediately. | |
