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81 lines
2.8 KiB
C
81 lines
2.8 KiB
C
#ifndef PL2303_H
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#define PL2303_H
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#include <stdbool.h>
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#include <inttypes.h>
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#define PL2303_STAT
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#define PL2303_REQ_CDCOUT USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_INTERFACE
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#define PL2303_STOP_BIT_1 0
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#define PL2303_STOP_BIT_1_5 1
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#define PL2303_STOP_BIT_2 2
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#define PL2303_PARITY_NONE 0
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#define PL2303_PARITY_ODD 1
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#define PL2303_PARITY_EVEN 2
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#define PL2303_PARITY_MARK 3
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#define PL2303_PARITY_SPACE 4
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typedef struct {
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uint32_t dwDTERate; // bitrate
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uint8_t bCharFormat;
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uint8_t bParityType;
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uint8_t bDataBits; // Data bits (5, 6, 7, 8 or 16)
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} __attribute__ ((packed)) line_coding_t;
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// CDC Commands defined by PSTN 1.2
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#define CDC_SET_COMM_FEATURE 0x02
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#define CDC_GET_COMM_FEATURE 0x03
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#define CDC_CLEAR_COMM_FEATURE 0x04
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#define CDC_SET_AUX_LINE_STATE 0x10
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#define CDC_SET_HOOK_STATE 0x11
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#define CDC_PULSE_SETUP 0x12
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#define CDC_SEND_PULSE 0x13
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#define CDC_SET_PULSE_TIME 0x14
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#define CDC_RING_AUX_JACK 0x15
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#define CDC_SET_LINE_CODING 0x20
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#define CDC_GET_LINE_CODING 0x21
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#define CDC_SET_CONTROL_LINE_STATE 0x22
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#define CDC_SEND_BREAK 0x23
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#define CDC_SET_RINGER_PARMS 0x30
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#define CDC_GET_RINGER_PARMS 0x31
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#define CDC_SET_OPERATION_PARMS 0x32
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#define CDC_GET_OPERATION_PARMS 0x33
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#define CDC_SET_LINE_PARMS 0x34
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#define CDC_GET_LINE_PARMS 0x35
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#define CDC_DIAL_DIGITS 0x36
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typedef enum { PL2303_TYPE_UNKNOWN, PL2303_TYPE_0, PL2303_TYPE_1, PL2303_TYPE_HX } pl2303_type_t;
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typedef struct {
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ep_t ep[3];
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pl2303_type_t type;
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uint32_t qNextBulkPollTime; // next bulk poll time
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uint32_t qNextIrqPollTime; // next irq poll time
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uint8_t ep_int_idx; // index of interrupt ep
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uint8_t ep_bulk_in_idx; //
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uint8_t ep_bulk_out_idx; //
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uint8_t int_poll_ms; // poll interval in ms
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line_coding_t line_coding; // current line coding
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bool bPollEnable;
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#ifdef PL2303_STAT
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uint32_t tx_cnt, rx_cnt;
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#endif
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} usb_pl2303_info_t;
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// interface to usb core
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extern const usb_device_class_config_t usb_pl2303_class;
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// interface to higher levels
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int8_t pl2303_present(void);
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void pl2303_settings(uint32_t rate, uint8_t bits, uint8_t parity, uint8_t stop);
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void pl2303_tx(uint8_t *data, uint8_t len);
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void pl2303_tx_byte(uint8_t byte);
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uint8_t pl2303_rx_available(void);
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uint8_t pl2303_rx(void);
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int8_t pl2303_is_blocked(void);
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#endif // PL2303_H
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