d92b0a82cc
"A long time ago in a galaxy far, far away...." we started NFC subsystem refactoring. Starring: - @gornekich - NFC refactoring project lead, architect, senior developer - @gsurkov - architect, senior developer - @RebornedBrain - senior developer Supporting roles: - @skotopes, @DrZlo13, @hedger - general architecture advisors, code review - @Astrrra, @doomwastaken, @Hellitron, @ImagineVagon333 - quality assurance Special thanks: @bettse, @pcunning, @nxv, @noproto, @AloneLiberty and everyone else who has been helping us all this time and contributing valuable knowledges, ideas and source code.
82 lines
2.4 KiB
C
82 lines
2.4 KiB
C
#include "st25r3916.h"
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#include <furi.h>
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void st25r3916_mask_irq(FuriHalSpiBusHandle* handle, uint32_t mask) {
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furi_assert(handle);
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uint8_t irq_mask_regs[4] = {
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mask & 0xff,
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(mask >> 8) & 0xff,
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(mask >> 16) & 0xff,
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(mask >> 24) & 0xff,
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};
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st25r3916_write_burst_regs(handle, ST25R3916_REG_IRQ_MASK_MAIN, irq_mask_regs, 4);
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}
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uint32_t st25r3916_get_irq(FuriHalSpiBusHandle* handle) {
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furi_assert(handle);
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uint8_t irq_regs[4] = {};
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uint32_t irq = 0;
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st25r3916_read_burst_regs(handle, ST25R3916_REG_IRQ_MASK_MAIN, irq_regs, 4);
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// FURI_LOG_I(
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// "Mask Irq", "%02X %02X %02X %02X", irq_regs[0], irq_regs[1], irq_regs[2], irq_regs[3]);
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st25r3916_read_burst_regs(handle, ST25R3916_REG_IRQ_MAIN, irq_regs, 4);
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irq = (uint32_t)irq_regs[0];
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irq |= (uint32_t)irq_regs[1] << 8;
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irq |= (uint32_t)irq_regs[2] << 16;
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irq |= (uint32_t)irq_regs[3] << 24;
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// FURI_LOG_I("iRQ", "%02X %02X %02X %02X", irq_regs[0], irq_regs[1], irq_regs[2], irq_regs[3]);
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return irq;
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}
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void st25r3916_write_fifo(FuriHalSpiBusHandle* handle, const uint8_t* buff, size_t bits) {
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furi_assert(handle);
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furi_assert(buff);
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size_t bytes = (bits + 7) / 8;
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st25r3916_write_reg(handle, ST25R3916_REG_NUM_TX_BYTES2, (uint8_t)(bits & 0xFFU));
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st25r3916_write_reg(handle, ST25R3916_REG_NUM_TX_BYTES1, (uint8_t)((bits >> 8) & 0xFFU));
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st25r3916_reg_write_fifo(handle, buff, bytes);
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}
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bool st25r3916_read_fifo(
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FuriHalSpiBusHandle* handle,
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uint8_t* buff,
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size_t buff_size,
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size_t* buff_bits) {
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furi_assert(handle);
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furi_assert(buff);
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bool read_success = false;
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do {
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uint8_t fifo_status[2] = {};
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st25r3916_read_burst_regs(handle, ST25R3916_REG_FIFO_STATUS1, fifo_status, 2);
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size_t bytes = ((fifo_status[1] & ST25R3916_REG_FIFO_STATUS2_fifo_b_mask) >>
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ST25R3916_REG_FIFO_STATUS2_fifo_b_shift) |
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fifo_status[0];
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uint8_t bits =
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((fifo_status[1] & ST25R3916_REG_FIFO_STATUS2_fifo_lb_mask) >>
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ST25R3916_REG_FIFO_STATUS2_fifo_lb_shift);
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if(bytes == 0) break;
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if(bytes > buff_size) break;
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st25r3916_reg_read_fifo(handle, buff, bytes);
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if(bits) {
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*buff_bits = (bytes - 1) * 8 + bits;
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} else {
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*buff_bits = bytes * 8;
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}
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read_success = true;
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} while(false);
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return read_success;
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}
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