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42 lines
1.0 KiB
C
42 lines
1.0 KiB
C
#include "mip.h"
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#if MG_ENABLE_MIP
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// Instruction set
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enum { OP_RCR, OP_RBM, OP_WCR, OP_WBM, OP_BFS, OP_BFC, OP_SRC };
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static uint8_t rd(struct mip_spi *spi, uint8_t op, uint8_t addr) {
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spi->begin(spi->spi);
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spi->txn(spi->spi, (uint8_t) ((op << 5) | (addr & 0x1f)));
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uint8_t value = spi->txn(spi->spi, 255);
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if (addr & 0x80) value = spi->txn(spi->spi, 255);
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spi->end(spi->spi);
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return value;
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}
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static bool mip_driver_enc28j60_init(uint8_t *mac, void *data) {
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(void) mac, (void) data;
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rd((struct mip_spi *) data, OP_SRC, 0x1f);
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return false;
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}
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static size_t mip_driver_enc28j60_tx(const void *buf, size_t len, void *data) {
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(void) buf, (void) len, (void) data;
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return 0;
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}
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static size_t mip_driver_enc28j60_rx(void *buf, size_t len, void *data) {
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(void) buf, (void) len, (void) data;
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return 0;
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}
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static bool mip_driver_enc28j60_up(void *data) {
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(void) data;
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return false;
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}
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struct mip_driver mip_driver_enc28j60 = {
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mip_driver_enc28j60_init, mip_driver_enc28j60_tx, mip_driver_enc28j60_rx,
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mip_driver_enc28j60_up, NULL};
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#endif
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