Keywords: Intellon, Atheros, Qualcomm, HomePlug, powerline, communications, INT6000, INT6300, INT6400, AR7400, AR7420

DMA Functions
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## DMA Functions

### qcaspi_dma_read_burst

`uint32_t qcaspi_dma_read_burst(` | qca, |
| buffer, |
| length`)`; |

`struct qcaspi * qca`;
`uint8_t * buffer`;
`uint32_t length`;

Performs QCA7000 DMA burst read.

### qcaspi_dma_read_legacy

`uint32_t qcaspi_dma_read_legacy(` | qca, |
| buffer, |
| length`)`; |

`struct qcaspi * qca`;
`uint8_t * buffer`;
`uint32_t length`;

Performs QCA7000 DMA legacy read.

### qcaspi_dma_write_burst

`uint32_t qcaspi_dma_write_burst(` | qca, |
| buffer, |
| length`)`; |

`struct qcaspi * qca`;
`uint8_t * buffer`;
`uint32_t length`;

Called by `qcaspi_tx_frame` to peform a DMA burst write instead of a legacy write.

### qcaspi_dma_write_legacy

`uint32_t qcaspi_dma_write_legacy(` | qca, |
| buffer, |
| length`)`; |

`struct qcaspi * qca`;
`uint8_t * buffer`;
`uint32_t length`;

Called by `qcaspi_tx_frame` to peform a DMA legacy write instead of a burst write.

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