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Description
Prolific PL2303 USB to Serial Driver unit
The Prolific PL2303 is a USB to serial interface chip used by multiple vendors.
It includes a single serial port with bulk IN and OUT plus interrupt IN endpoints.
Constants
[Expand]
PL2303 specific constants PL2303_*
PL2303_DRIVER_NAME = 'Prolific PL2303 USB to Serial Driver';
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Name of PL2303 driver
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PL2303_SERIAL_DESCRIPTION = 'Prolific PL2303 USB to Serial';
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Description of PL2303 device
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PL2303_MIN_BAUD = 75;
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PL2303_MAX_BAUD = 1228800;
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PL2303_MAX_BAUD_HX = 12000000;
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PL2303_MIN_DATABITS = SERIAL_DATA_5BIT;
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PL2303_MAX_DATABITS = SERIAL_DATA_8BIT;
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PL2303_MIN_STOPBITS = SERIAL_STOP_1BIT;
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PL2303_MAX_STOPBITS = SERIAL_STOP_1BIT5;
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PL2303_MAX_PARITY = SERIAL_PARITY_SPACE;
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PL2303_MAX_FLOW = SERIAL_FLOW_DSR_DTR;
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[Expand]
PL2303 device model PL2303_TYPE_*
PL2303_TYPE_01 = 0;
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Type 0 and 1 (difference unknown)
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PL2303_TYPE_HX = 1;
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HX version of the PL2303 chip
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[Expand]
PL2303 bulk in/out size PL2303_BULK_*
PL2303_BULK_IN_SIZE = 256;
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PL2303_BULK_OUT_SIZE = 256;
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[Expand]
PL2303 USB request PL2303_*_REQUEST
PL2303_SET_LINE_REQUEST_TYPE = $21;
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PL2303_SET_LINE_REQUEST = $20;
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PL2303_SET_CONTROL_REQUEST_TYPE = $21;
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PL2303_SET_CONTROL_REQUEST = $22;
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PL2303_CONTROL_DTR = $01;
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PL2303_CONTROL_RTS = $02;
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PL2303_BREAK_REQUEST_TYPE = $21;
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PL2303_BREAK_REQUEST = $23;
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PL2303_BREAK_ON = $ffff;
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PL2303_BREAK_OFF = $0000;
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PL2303_GET_LINE_REQUEST_TYPE = $a1;
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PL2303_GET_LINE_REQUEST = $21;
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PL2303_VENDOR_WRITE_REQUEST_TYPE = $40;
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PL2303_VENDOR_WRITE_REQUEST = $01;
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PL2303_VENDOR_READ_REQUEST_TYPE = $c0;
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PL2303_VENDOR_READ_REQUEST = $01;
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PL2303_UART_STATE_INDEX = 8;
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PL2303_UART_DCD = $01;
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PL2303_UART_DSR = $02;
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PL2303_UART_BREAK_ERROR = $04;
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PL2303_UART_RING = $08;
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PL2303_UART_FRAME_ERROR = $10;
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PL2303_UART_PARITY_ERROR = $20;
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PL2303_UART_OVERRUN_ERROR = $40;
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PL2303_UART_CTS = $80;
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PL2303_UART_STATE_MSR_MASK = PL2303_UART_DCD or PL2303_UART_DSR or PL2303_UART_RING or PL2303_UART_CTS;
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$8b
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PL2303_UART_STATE_TRANSIENT_MASK = PL2303_UART_BREAK_ERROR or PL2303_UART_FRAME_ERROR or PL2303_UART_PARITY_ERROR or PL2303_UART_OVERRUN_ERROR;
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$74
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[Expand]
PL2303 device quirk PL2303_QUIRK_*
PL2303_QUIRK_NONE = $00000000;
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PL2303_QUIRK_UART_STATE_IDX0 = $00000001;
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PL2303_QUIRK_LEGACY = $00000002;
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PL2303_QUIRK_ENDPOINT_HACK = $00000004;
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[Expand]
PL2303 supported baud rate PL2303_SUPPORTED_BAUD_RATE_*
PL2303_SUPPORTED_BAUD_RATE_COUNT = 25;
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PL2303_SUPPORTED_BAUD_RATES:array[0..PL2303_SUPPORTED_BAUD_RATE_COUNT - 1] of LongWord = (
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75,
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150,
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300,
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600,
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1200,
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1800,
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2400,
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3600,
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4800,
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7200,
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9600,
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14400,
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19200,
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28800,
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38400,
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57600,
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115200,
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230400,
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460800,
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614400,
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921600,
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1228800,
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2457600,
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3000000,
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6000000);
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[Expand]
PL2303 vendor and product Id PL2303_*_ID
PL2303_VENDOR_ID = $067b;
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PL2303_PRODUCT_ID = $2303;
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PL2303_PRODUCT_ID_TB = $2304;
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PL2303_PRODUCT_ID_RSAQ2 = $04bb;
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PL2303_PRODUCT_ID_DCU11 = $1234;
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PL2303_PRODUCT_ID_PHAROS = $aaa0;
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PL2303_PRODUCT_ID_RSAQ3 = $aaa2;
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PL2303_PRODUCT_ID_CHILITAG = $aaa8;
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PL2303_PRODUCT_ID_ALDIGA = $0611;
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PL2303_PRODUCT_ID_MMX = $0612;
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PL2303_PRODUCT_ID_GPRS = $0609;
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PL2303_PRODUCT_ID_HCR331 = $331a;
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PL2303_PRODUCT_ID_MOTOROLA = $0307;
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PL2303_PRODUCT_ID_ZTEK = $e1f1;
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PL2303_ATEN_VENDOR_ID = $0557;
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PL2303_ATEN_VENDOR_ID2 = $0547;
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PL2303_ATEN_PRODUCT_ID = $2008;
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PL2303_ATEN_PRODUCT_UC485 = $2021;
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PL2303_ATEN_PRODUCT_UC232B = $2022;
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PL2303_ATEN_PRODUCT_ID2 = $2118;
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PL2303_BENQ_VENDOR_ID = $04a5;
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PL2303_BENQ_PRODUCT_ID_S81 = $4027;
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PL2303_IODATA_VENDOR_ID = $04bb;
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PL2303_IODATA_PRODUCT_ID = $0a03;
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PL2303_IODATA_PRODUCT_ID_RSAQ5 = $0a0e;
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PL2303_ELCOM_VENDOR_ID = $056e;
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PL2303_ELCOM_PRODUCT_ID = $5003;
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PL2303_ELCOM_PRODUCT_ID_UCSGT = $5004;
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PL2303_ITEGNO_VENDOR_ID = $0eba;
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PL2303_ITEGNO_PRODUCT_ID = $1080;
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PL2303_ITEGNO_PRODUCT_ID_2080 = $2080;
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PL2303_MA620_VENDOR_ID = $0df7;
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PL2303_MA620_PRODUCT_ID = $0620;
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PL2303_RATOC_VENDOR_ID = $0584;
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PL2303_RATOC_PRODUCT_ID = $b000;
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PL2303_TRIPP_VENDOR_ID = $2478;
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PL2303_TRIPP_PRODUCT_ID = $2008;
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PL2303_RADIOSHACK_VENDOR_ID = $1453;
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PL2303_RADIOSHACK_PRODUCT_ID = $4026;
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PL2303_DCU10_VENDOR_ID = $0731;
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PL2303_DCU10_PRODUCT_ID = $0528;
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PL2303_SITECOM_VENDOR_ID = $6189;
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PL2303_SITECOM_PRODUCT_ID = $2068;
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| Alcatel OT535/735 USB cable
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PL2303_ALCATEL_VENDOR_ID = $11f7;
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PL2303_ALCATEL_PRODUCT_ID = $02df;
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PL2303_SIEMENS_VENDOR_ID = $11f5;
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PL2303_SIEMENS_PRODUCT_ID_SX1 = $0001;
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PL2303_SIEMENS_PRODUCT_ID_X65 = $0003;
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PL2303_SIEMENS_PRODUCT_ID_X75 = $0004;
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PL2303_SIEMENS_PRODUCT_ID_EF81 = $0005;
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PL2303_SYNTECH_VENDOR_ID = $0745;
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PL2303_SYNTECH_PRODUCT_ID = $0001;
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| Nokia CA-42 Cable
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PL2303_NOKIA_CA42_VENDOR_ID = $078b;
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PL2303_NOKIA_CA42_PRODUCT_ID = $1234;
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| CA-42 CLONE Cable www.ca-42.com chipset: Prolific Technology Inc
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PL2303_CA_42_CA42_VENDOR_ID = $10b5;
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PL2303_CA_42_CA42_PRODUCT_ID = $ac70;
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PL2303_SAGEM_VENDOR_ID = $079b;
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PL2303_SAGEM_PRODUCT_ID = $0027;
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| Leadtek GPS 9531 (ID 0413:2101)
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PL2303_LEADTEK_VENDOR_ID = $0413;
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PL2303_LEADTEK_9531_PRODUCT_ID = $2101;
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| USB GSM cable from Speed Dragon Multimedia, Ltd
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PL2303_SPEEDDRAGON_VENDOR_ID = $0e55;
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PL2303_SPEEDDRAGON_PRODUCT_ID = $110b;
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| DATAPILOT Universal-2 Phone Cable
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PL2303_DATAPILOT_U2_VENDOR_ID = $0731;
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PL2303_DATAPILOT_U2_PRODUCT_ID = $2003;
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| Belkin "F5U257" Serial Adapter
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PL2303_BELKIN_VENDOR_ID = $050d;
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PL2303_BELKIN_PRODUCT_ID = $0257;
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| Alcor Micro Corp. USB 2.0 TO RS-232
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PL2303_ALCOR_VENDOR_ID = $058F;
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PL2303_ALCOR_PRODUCT_ID = $9720;
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| Willcom WS002IN Data Driver (by NetIndex Inc.)
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PL2303_WS002IN_VENDOR_ID = $11f6;
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PL2303_WS002IN_PRODUCT_ID = $2001;
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| Corega CG-USBRS232R Serial Adapter
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PL2303_COREGA_VENDOR_ID = $07aa;
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PL2303_COREGA_PRODUCT_ID = $002a;
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| Y.C. Cable U.S.A., Inc - USB to RS-232
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PL2303_YCCABLE_VENDOR_ID = $05ad;
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PL2303_YCCABLE_PRODUCT_ID = $0fba;
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| "Superial" USB - Serial
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PL2303_SUPERIAL_VENDOR_ID = $5372;
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PL2303_SUPERIAL_PRODUCT_ID = $2303;
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| Hewlett-Packard POS Pole Displays
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PL2303_HP_VENDOR_ID = $03f0;
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PL2303_HP_LM920_PRODUCT_ID = $026b;
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PL2303_HP_TD620_PRODUCT_ID = $0956;
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PL2303_HP_LD960_PRODUCT_ID = $0b39;
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PL2303_HP_LCM220_PRODUCT_ID = $3139;
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PL2303_HP_LCM960_PRODUCT_ID = $3239;
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PL2303_HP_LD220_PRODUCT_ID = $3524;
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PL2303_HP_LD220TA_PRODUCT_ID = $4349;
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PL2303_HP_LD960TA_PRODUCT_ID = $4439;
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PL2303_HP_LM940_PRODUCT_ID = $5039;
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| Cressi Edy (diving computer) PC interface
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PL2303_CRESSI_VENDOR_ID = $04b8;
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PL2303_CRESSI_EDY_PRODUCT_ID = $0521;
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| Zeagle dive computer interface
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PL2303_ZEAGLE_VENDOR_ID = $04b8;
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PL2303_ZEAGLE_N2ITION3_PRODUCT_ID = $0522;
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| Sony, USB data cable for CMD-Jxx mobile phones
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PL2303_SONY_VENDOR_ID = $054c;
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PL2303_SONY_QN3USB_PRODUCT_ID = $0437;
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| Sanwa KB-USB2 multimeter cable (ID: 11ad:0001)
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PL2303_SANWA_VENDOR_ID = $11ad;
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PL2303_SANWA_PRODUCT_ID = $0001;
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| ADLINK ND-6530 RS232,RS485 and RS422 adapter
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PL2303_ADLINK_VENDOR_ID = $0b63;
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PL2303_ADLINK_ND6530_PRODUCT_ID = $6530;
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| SMART USB Serial Adapter
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PL2303_SMART_VENDOR_ID = $0b8c;
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PL2303_SMART_PRODUCT_ID = $2303;
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[Expand]
PL2303 device Id PL2303_DEVICE_ID_*
PL2303_DEVICE_ID_COUNT = 64;
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Number of supported Device IDs
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PL2303_DEVICE_ID:array[0..PL2303_DEVICE_ID_COUNT - 1] of TUSBDeviceId = (
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(idVendor:PL2303_VENDOR_ID;idProduct:PL2303_PRODUCT_ID),
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(idVendor:PL2303_VENDOR_ID;idProduct:PL2303_PRODUCT_ID_RSAQ2),
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(idVendor:PL2303_VENDOR_ID;idProduct:PL2303_PRODUCT_ID_DCU11),
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(idVendor:PL2303_VENDOR_ID;idProduct:PL2303_PRODUCT_ID_RSAQ3),
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(idVendor:PL2303_VENDOR_ID;idProduct:PL2303_PRODUCT_ID_CHILITAG),
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(idVendor:PL2303_VENDOR_ID;idProduct:PL2303_PRODUCT_ID_PHAROS),
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(idVendor:PL2303_VENDOR_ID;idProduct:PL2303_PRODUCT_ID_ALDIGA),
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(idVendor:PL2303_VENDOR_ID;idProduct:PL2303_PRODUCT_ID_MMX),
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(idVendor:PL2303_VENDOR_ID;idProduct:PL2303_PRODUCT_ID_GPRS),
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(idVendor:PL2303_VENDOR_ID;idProduct:PL2303_PRODUCT_ID_HCR331),
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(idVendor:PL2303_VENDOR_ID;idProduct:PL2303_PRODUCT_ID_MOTOROLA),
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(idVendor:PL2303_VENDOR_ID;idProduct:PL2303_PRODUCT_ID_ZTEK),
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(idVendor:PL2303_VENDOR_ID;idProduct:PL2303_PRODUCT_ID_TB),
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(idVendor:PL2303_IODATA_VENDOR_ID;idProduct:PL2303_IODATA_PRODUCT_ID),
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(idVendor:PL2303_IODATA_VENDOR_ID;idProduct:PL2303_IODATA_PRODUCT_ID_RSAQ5),
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(idVendor:PL2303_ATEN_VENDOR_ID;idProduct:PL2303_ATEN_PRODUCT_ID),
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(idVendor:PL2303_ATEN_VENDOR_ID;idProduct:PL2303_ATEN_PRODUCT_UC485),
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(idVendor:PL2303_ATEN_VENDOR_ID;idProduct:PL2303_ATEN_PRODUCT_UC232B),
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(idVendor:PL2303_ATEN_VENDOR_ID;idProduct:PL2303_ATEN_PRODUCT_ID2),
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(idVendor:PL2303_ATEN_VENDOR_ID2;idProduct:PL2303_ATEN_PRODUCT_ID),
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(idVendor:PL2303_ELCOM_VENDOR_ID;idProduct:PL2303_ELCOM_PRODUCT_ID),
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(idVendor:PL2303_ELCOM_VENDOR_ID;idProduct:PL2303_ELCOM_PRODUCT_ID_UCSGT),
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(idVendor:PL2303_ITEGNO_VENDOR_ID;idProduct:PL2303_ITEGNO_PRODUCT_ID),
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(idVendor:PL2303_ITEGNO_VENDOR_ID;idProduct:PL2303_ITEGNO_PRODUCT_ID_2080),
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(idVendor:PL2303_MA620_VENDOR_ID;idProduct:PL2303_MA620_PRODUCT_ID),
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(idVendor:PL2303_RATOC_VENDOR_ID;idProduct:PL2303_RATOC_PRODUCT_ID),
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(idVendor:PL2303_TRIPP_VENDOR_ID;idProduct:PL2303_TRIPP_PRODUCT_ID),
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(idVendor:PL2303_RADIOSHACK_VENDOR_ID;idProduct:PL2303_RADIOSHACK_PRODUCT_ID),
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(idVendor:PL2303_DCU10_VENDOR_ID;idProduct:PL2303_DCU10_PRODUCT_ID),
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(idVendor:PL2303_SITECOM_VENDOR_ID;idProduct:PL2303_SITECOM_PRODUCT_ID),
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(idVendor:PL2303_ALCATEL_VENDOR_ID;idProduct:PL2303_ALCATEL_PRODUCT_ID),
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(idVendor:PL2303_SIEMENS_VENDOR_ID;idProduct:PL2303_SIEMENS_PRODUCT_ID_SX1),
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PL2303_QUIRK_UART_STATE_IDX0
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(idVendor:PL2303_SIEMENS_VENDOR_ID;idProduct:PL2303_SIEMENS_PRODUCT_ID_X65),
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PL2303_QUIRK_UART_STATE_IDX0
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(idVendor:PL2303_SIEMENS_VENDOR_ID;idProduct:PL2303_SIEMENS_PRODUCT_ID_X75),
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PL2303_QUIRK_UART_STATE_IDX0
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(idVendor:PL2303_SIEMENS_VENDOR_ID;idProduct:PL2303_SIEMENS_PRODUCT_ID_EF81),
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(idVendor:PL2303_BENQ_VENDOR_ID;idProduct:PL2303_BENQ_PRODUCT_ID_S81),
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Benq/Siemens S81
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(idVendor:PL2303_SYNTECH_VENDOR_ID;idProduct:PL2303_SYNTECH_PRODUCT_ID),
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(idVendor:PL2303_NOKIA_CA42_VENDOR_ID;idProduct:PL2303_NOKIA_CA42_PRODUCT_ID),
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(idVendor:PL2303_CA_42_CA42_VENDOR_ID;idProduct:PL2303_CA_42_CA42_PRODUCT_ID),
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(idVendor:PL2303_SAGEM_VENDOR_ID;idProduct:PL2303_SAGEM_PRODUCT_ID),
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(idVendor:PL2303_LEADTEK_VENDOR_ID;idProduct:PL2303_LEADTEK_9531_PRODUCT_ID),
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(idVendor:PL2303_SPEEDDRAGON_VENDOR_ID;idProduct:PL2303_SPEEDDRAGON_PRODUCT_ID),
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(idVendor:PL2303_DATAPILOT_U2_VENDOR_ID;idProduct:PL2303_DATAPILOT_U2_PRODUCT_ID),
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(idVendor:PL2303_BELKIN_VENDOR_ID;idProduct:PL2303_BELKIN_PRODUCT_ID),
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(idVendor:PL2303_ALCOR_VENDOR_ID;idProduct:PL2303_ALCOR_PRODUCT_ID),
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(idVendor:PL2303_WS002IN_VENDOR_ID;idProduct:PL2303_WS002IN_PRODUCT_ID),
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(idVendor:PL2303_COREGA_VENDOR_ID;idProduct:PL2303_COREGA_PRODUCT_ID),
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(idVendor:PL2303_YCCABLE_VENDOR_ID;idProduct:PL2303_YCCABLE_PRODUCT_ID),
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(idVendor:PL2303_SUPERIAL_VENDOR_ID;idProduct:PL2303_SUPERIAL_PRODUCT_ID),
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(idVendor:PL2303_HP_VENDOR_ID;idProduct:PL2303_HP_LD220_PRODUCT_ID),
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(idVendor:PL2303_HP_VENDOR_ID;idProduct:PL2303_HP_LD220TA_PRODUCT_ID),
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(idVendor:PL2303_HP_VENDOR_ID;idProduct:PL2303_HP_LD960_PRODUCT_ID),
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(idVendor:PL2303_HP_VENDOR_ID;idProduct:PL2303_HP_LD960TA_PRODUCT_ID),
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(idVendor:PL2303_HP_VENDOR_ID;idProduct:PL2303_HP_LCM220_PRODUCT_ID),
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(idVendor:PL2303_HP_VENDOR_ID;idProduct:PL2303_HP_LCM960_PRODUCT_ID),
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(idVendor:PL2303_HP_VENDOR_ID;idProduct:PL2303_HP_LM920_PRODUCT_ID),
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(idVendor:PL2303_HP_VENDOR_ID;idProduct:PL2303_HP_LM940_PRODUCT_ID),
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(idVendor:PL2303_HP_VENDOR_ID;idProduct:PL2303_HP_TD620_PRODUCT_ID),
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(idVendor:PL2303_CRESSI_VENDOR_ID;idProduct:PL2303_CRESSI_EDY_PRODUCT_ID),
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(idVendor:PL2303_ZEAGLE_VENDOR_ID;idProduct:PL2303_ZEAGLE_N2ITION3_PRODUCT_ID),
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(idVendor:PL2303_SONY_VENDOR_ID;idProduct:PL2303_SONY_QN3USB_PRODUCT_ID),
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(idVendor:PL2303_SANWA_VENDOR_ID;idProduct:PL2303_SANWA_PRODUCT_ID),
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(idVendor:PL2303_ADLINK_VENDOR_ID;idProduct:PL2303_ADLINK_ND6530_PRODUCT_ID),
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(idVendor:PL2303_SMART_VENDOR_ID;idProduct:PL2303_SMART_PRODUCT_ID));
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Type definitions
PL2303 specific types
[Expand]
PPL2303SerialDevice = ^TPL2303SerialDevice;
TPL2303SerialDevice = record
| Serial Properties
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Serial:TSerialDevice;
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| USB Properties
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Model:LongWord;
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Device model (eg PL2303_TYPE_01)
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Quirks:LongWord;
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Unusual behaviours of specific chip versions
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Control:LongWord;
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Status of the control lines RTS and DTR
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ReceiveSize:LongWord;
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Maximum Receive size for Bulk IN Endpoint
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TransmitSize:LongWord;
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Maximum Transmit size for Bulk OUT Endpoint
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ReceiveActive:LongBool;
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True if a Receive request is currently in progress
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TransmitActive:LongBool;
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True if a Transmit request is currently in progress
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ReceiveRequest:PUSBRequest;
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USB request Bulk IN Endpoint
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ReceiveEndpoint:PUSBEndpointDescriptor;
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PL2303 Bulk IN Endpoint
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TransmitRequest:PUSBRequest;
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USB request for Bulk OUT Endpoint
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TransmitEndpoint:PUSBEndpointDescriptor;
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PL2303 Bulk OUT Endpoint
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InterruptRequest:PUSBRequest;
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USB request for Interrupt IN Endpoint
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InterruptEndpoint:PUSBEndpointDescriptor;
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PL2303 Interrupt IN Endpoint
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PendingCount:LongWord;
|
Number of USB requests pending for this device
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WaiterThread:TThreadId;
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Thread waiting for pending requests to complete (for device detachment)
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| Statistics Properties
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ReceiveComplete:LongWord;
|
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TransmitComplete:LongWord;
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InterruptComplete:LongWord;
|
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InterruptErrors:LongWord;
|
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Public variables
None defined
Function declarations
Initialization functions
[Expand]
procedure PL2303Init;
Description: To be documented
PL2303 serial functions
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function PL2303SerialDeviceOpen(Serial:PSerialDevice; BaudRate,DataBits,StopBits,Parity,FlowControl,ReceiveDepth,TransmitDepth:LongWord):LongWord;
Description: Implementation of SerialDeviceOpen API for PL2303 Serial
| Note
|
Not intended to be called directly by applications, use SerialDeviceOpen instead.
|
[Expand]
function PL2303SerialDeviceClose(Serial:PSerialDevice):LongWord;
Description: Implementation of SerialDeviceClose API for PL2303 Serial
| Note
|
Not intended to be called directly by applications, use SerialDeviceClose instead.
|
[Expand]
function PL2303SerialDeviceRead(Serial:PSerialDevice; Buffer:Pointer; Size,Flags:LongWord; var Count:LongWord):LongWord;
Description: Implementation of SerialDeviceRead API for PL2303 Serial
| Note
|
Not intended to be called directly by applications, use SerialDeviceRead instead.
|
[Expand]
function PL2303SerialDeviceWrite(Serial:PSerialDevice; Buffer:Pointer; Size,Flags:LongWord; var Count:LongWord):LongWord;
Description: Implementation of SerialDeviceWrite API for Pl2303 Serial
| Note
|
Not intended to be called directly by applications, use SerialDeviceWrite instead.
|
PL2303 USB functions
[Expand]
function PL2303DriverBind(Device:PUSBDevice; Interrface:PUSBInterface):LongWord;
Description: Bind the PL2303 driver to a USB device if it is suitable
| Device
|
The USB device to attempt to bind to
|
| Interrface
|
The USB interface to attempt to bind to (or nil for whole device)
|
| Return
|
USB_STATUS_SUCCESS if completed, USB_STATUS_DEVICE_UNSUPPORTED if unsupported or another error code on failure.
|
[Expand]
function PL2303DriverUnbind(Device:PUSBDevice; Interrface:PUSBInterface):LongWord;
Description: Unbind the PL2303 driver from a USB device
| Device
|
The USB device to unbind from
|
| Interrface
|
The USB interface to unbind from (or nil for whole device)
|
| Return
|
USB_STATUS_SUCCESS if completed or another error code on failure
|
[Expand]
procedure PL2303ReceiveStart(Request:PUSBRequest);
Description: Called to continue reception of data to the receive buffer
| Request
|
The USB receive request to use
|
| Note
|
Caller must hold the lock on the serial device
|
[Expand]
procedure PL2303ReceiveWorker(Request:PUSBRequest);
Description: Called (by a Worker thread) to process a completed USB request from the PL2303 bulk IN endpoint
| Request
|
The USB request which has completed
|
[Expand]
procedure PL2303ReceiveComplete(Request:PUSBRequest);
Description: Called when a USB request from the PL2303 bulk IN endpoint completes
| Request
|
The USB request which has completed
|
| Note
|
Request is passed to worker thread for processing to prevent blocking the USB completion
|
[Expand]
procedure PL2303TransmitStart(Request:PUSBRequest);
Description: Called to continue transmission of data from the transmit buffer
| Request
|
The USB transmit request to use
|
| Note
|
Caller must hold the lock on the serial device
|
[Expand]
procedure PL2303TransmitWorker(Request:PUSBRequest);
Description: Called (by a Worker thread) to process a completed USB request to the PL2303 bulk OUT endpoint
| Request
|
The USB request which has completed
|
[Expand]
procedure PL2303TransmitComplete(Request:PUSBRequest);
Description: Called when a USB request to the PL2303 bulk OUT endpoint completes
| Request
|
The USB request which has completed
|
| Note
|
Request is passed to worker thread for processing to prevent blocking the USB completion
|
[Expand]
procedure PL2303InterruptWorker(Request:PUSBRequest);
Description: Called (by a Worker thread) to process a completed USB request to the PL2303 interrupt IN endpoint
| Request
|
The USB request which has completed
|
[Expand]
procedure PL2303InterruptComplete(Request:PUSBRequest);
Description: Called when a USB request from the PL2303 interrupt IN endpoint completes
| Request
|
The USB request which has completed
|
| Note
|
Request is passed to worker thread for processing to prevent blocking the USB completion
|
PL2303 helper functions
[Expand]
function PL2303CheckDevice(Device:PUSBDevice):LongWord;
Description: Check the Vendor and Device ID against the supported devices
| Device
|
USB device to check
|
| Return
|
USB_STATUS_SUCCESS if completed or another error code on failure
|
[Expand]
function PL2303PatchDevice(Device:PUSBDevice; var Model,Quirks:LongWord):LongWord;
Description: Check the USB device for quirks and model information needed by the driver
| Device
|
USB device to check
|
| Return
|
USB_STATUS_SUCCESS if completed or another error code on failure
|
[Expand]
function PL2303VendorRead(Device:PUSBDevice; Value:Word; Data:PByte):LongWord;
Description: Perform a vendor read request to a PL2303 device
[Expand]
function PL2303VendorWrite(Device:PUSBDevice; Value,Index:Word):LongWord;
Description: Perform a vendor write request to a PL2303 device
[Expand]
function PL2303GetLineRequest(Device:PUSBDevice; Data:PByte):LongWord;
Description: Perform a get line request to a PL2303 device
[Expand]
function PL2303SetLineRequest(Device:PUSBDevice; Data:PByte):LongWord;
Description: Perform a set line request to a PL2303 device
[Expand]
function PL2303SetControlRequest(Device:PUSBDevice; Value:Word):LongWord;
Description: Perform a set control request to a PL2303 device
[Expand]
function PL2303EncodeBaudRate(Device:PUSBDevice; BaudRate:LongWord; Data:PByte):LongWord;
Description: Encode a baud rate value into the Line Request buffer for a PL2303 device
[Expand]
function PL2303GetSupportedRate(BaudRate:LongWord):LongWord;
Description: To be documented
Return to Unit Reference
