36 lines
618 B
C
36 lines
618 B
C
#include <common.h>
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#include <nbhw.h>
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#include "nbhw18_fpga_regs.h"
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void connect_sim_to_slot(int sim, int slot) {
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uint16_t sim_ctrl;
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uint16_t sim_shift;
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uint16_t slot_sel;
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if (sim > 3) {
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printf("Invalid sim %d selected, can't connect slot %d\n", sim, slot);
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return;
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}
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if (slot < 0)
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slot_sel = 0;
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else if (slot <= 4) {
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slot_sel = slot + 1;
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}
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else {
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printf("Invalid slot %d selected, can't connect sim %d\n", slot, sim);
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return;
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}
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sim_shift = sim * 4;
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sim_ctrl = FPGA_REG(SIM_CTRL);
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sim_ctrl &= ~(0xF << sim_shift);
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sim_ctrl |= slot_sel << sim_shift;
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FPGA_REG(SIM_CTRL) = sim_ctrl;
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}
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