36 lines
601 B
C
36 lines
601 B
C
#include <stdint.h>
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#include <string.h>
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#include "printf.h"
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#include "bionic.h"
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#include "memio.h"
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#include "spi.h"
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#include "fernvale-spi.h"
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#include "scriptic.h"
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static void spi_init(void)
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{
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static int spi_initted = 0;
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if (spi_initted)
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return;
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spi_initted = 1;
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scriptic_run("spi_init");
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}
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int spi_cmd_txrx(uint8_t tx_size, uint8_t rx_size,
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uint8_t *tx_buf, uint8_t *rx_buf)
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{
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spi_init();
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_memcpy(SPI_DATA, tx_buf, tx_size);
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writel(tx_size, SPI_WRITE_COUNT);
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writel(rx_size, SPI_READ_COUNT);
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scriptic_run("spi_run");
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_memcpy(rx_buf, SPI_DATA + tx_size, rx_size);
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return 0;
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}
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