74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
// vim: set et:
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#ifndef FTDI_BASE_H_
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#define FTDI_BASE_H_
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#include <stdint.h>
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#include <stdbool.h>
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#include "pinout.h"
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#include "ftdi.h"
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struct ftdi_hw_ch {
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const void* prg;
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uint8_t prg_off, piosm, dmach;
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volatile uint8_t dmabuf_dstart, dmabuf_dend, dmabuf_dataend;
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};
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struct ftdi_hw {
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struct ftdi_interface* itf;
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PIO pio;
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struct ftdi_hw_ch rx, tx;
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uint8_t pinbase;
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volatile uint8_t dma_in_buf[256/*CFG_TUD_VENDOR_TX_BUFSIZE*/];
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volatile uint8_t dma_out_buf[256/*CFG_TUD_VENDOR_RX_BUFSIZE*/];
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};
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extern struct ftdi_hw itf_bsp_data[2];
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void ftdihw_init(struct ftdi_hw* fr, struct ftdi_interface* itf);
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void ftdihw_deinit(struct ftdi_hw* fr);
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bool ftdihw_dma_ch_init(struct ftdi_hw_ch* ch, struct ftdi_hw* fr, const void* prg);
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void ftdihw_dma_ch_deinit(struct ftdi_hw_ch* fr, struct ftdi_hw* hw);
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void ftdihw_dma_rx_setup(struct ftdi_hw* fr, bool start);
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void ftdihw_dma_rx_stop(struct ftdi_hw* fr);
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void ftdihw_dma_tx_setup(struct ftdi_hw* fr, bool start);
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void ftdihw_dma_tx_stop(struct ftdi_hw* fr);
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size_t ftdihw_dma_read(struct ftdi_hw* fr, uint8_t* dest, size_t maxsize);
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bool ftdihw_dma_write(struct ftdi_hw* fr, const uint8_t* src, size_t size);
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void ftdihw_dma_rx_flush(struct ftdi_hw* fr);
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void ftdihw_dma_tx_flush(struct ftdi_hw* fr);
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static inline int ftdihw_idx_to_base(int itf_idx) {
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return itf_idx ? PINOUT_ITF_B_BASE : PINOUT_ITF_A_BASE;
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}
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static inline int ftdihw_itf_to_base(struct ftdi_interface* itf) {
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return ftdihw_idx_to_base(itf->index);
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}
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static inline PIO ftdihw_idx_to_pio(int itf_idx) {
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return itf_idx ? PINOUT_ITF_A_PIO : PINOUT_ITF_B_PIO;
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}
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static inline PIO ftdihw_itf_to_pio(struct ftdi_interface* itf) {
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return ftdihw_idx_to_pio(itf->index);
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}
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static inline struct ftdi_hw* ftdihw_idx_to_hw(int itf_idx) {
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return &itf_bsp_data[itf_idx & 1];
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}
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static inline struct ftdi_hw* ftdihw_itf_to_hw(struct ftdi_interface* itf) {
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return ftdihw_idx_to_hw(itf->index);
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}
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#endif
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