diff -uNr old/pl2303.c new/pl2303.c --- old/pl2303.c 2018-11-07 23:21:00.000000000 +0800 +++ new/pl2303.c 2018-12-06 23:42:19.777344682 +0800 @@ -11,6 +11,21 @@ * driver */ +/* + * Author: Charles Yeh + * + * Date: 2018-12-07 + * + * Prolific designed a new series of USB to UART chips: PL2303HXN + * + * These new chip names are PL2303GC, PL2303GS, PL2303GB, PL2303GT, PL2303GL, PL2303GE & PL2303TB , + * which are different from the old chip: PL2303HX + * + * The patch file can support PL2303HX(old chip) and PL2303HXN(new chip). + * + * Signed-off-by: Charles Yeh + */ + #include #include #include @@ -31,6 +46,8 @@ #define PL2303_QUIRK_UART_STATE_IDX0 BIT(0) #define PL2303_QUIRK_LEGACY BIT(1) #define PL2303_QUIRK_ENDPOINT_HACK BIT(2) +#define PL2303_QUIRK_LEGACY_HX BIT(3) /* Identification IC type: old */ +#define PL2303_QUIRK_LEGACY_N BIT(4) /* Identification IC type: new */ static const struct usb_device_id id_table[] = { { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID), @@ -46,6 +63,13 @@ { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_HCR331) }, { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_MOTOROLA) }, { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_ZTEK) }, + { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_TB) }, /* Prolific PL2303TB chip */ + { USB_DEVICE(PL2303_VENDOR_ID, PL2303G_PRODUCT_ID_GC) }, /* Prolific PL2303GC chip */ + { USB_DEVICE(PL2303_VENDOR_ID, PL2303G_PRODUCT_ID_GB) }, /* Prolific PL2303GB chip */ + { USB_DEVICE(PL2303_VENDOR_ID, PL2303G_PRODUCT_ID_GT) }, /* Prolific PL2303GT chip */ + { USB_DEVICE(PL2303_VENDOR_ID, PL2303G_PRODUCT_ID_GL) }, /* Prolific PL2303GL chip */ + { USB_DEVICE(PL2303_VENDOR_ID, PL2303G_PRODUCT_ID_GE) }, /* Prolific PL2303GE chip */ + { USB_DEVICE(PL2303_VENDOR_ID, PL2303G_PRODUCT_ID_GS) }, /* Prolific PL2303GS chip */ { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID) }, { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID_RSAQ5) }, { USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID), @@ -123,9 +147,11 @@ #define VENDOR_WRITE_REQUEST_TYPE 0x40 #define VENDOR_WRITE_REQUEST 0x01 +#define VENDOR_WRITE_NREQUEST 0x80 #define VENDOR_READ_REQUEST_TYPE 0xc0 #define VENDOR_READ_REQUEST 0x01 +#define VENDOR_READ_NREQUEST 0x81 #define UART_STATE_INDEX 8 #define UART_STATE_MSR_MASK 0x8b @@ -144,6 +170,7 @@ enum pl2303_type { TYPE_01, /* Type 0 and 1 (difference unknown) */ TYPE_HX, /* HX version of the pl2303 chip */ + TYPE_HXN, /* HXN version of the pl2303 chip */ TYPE_COUNT }; @@ -172,6 +199,11 @@ }, [TYPE_HX] = { .max_baud_rate = 12000000, + .quirks = PL2303_QUIRK_LEGACY_HX, /* old chip: type data */ + }, + [TYPE_HXN] = { + .max_baud_rate = 12000000, + .quirks = PL2303_QUIRK_LEGACY_N, /* New chip: type data */ }, }; @@ -179,10 +211,16 @@ unsigned char buf[1]) { struct device *dev = &serial->interface->dev; + struct pl2303_serial_private *spriv = usb_get_serial_data(serial); int res; + __u8 request; + + /* Identification old / new read request */ + if (spriv->quirks & PL2303_QUIRK_LEGACY_N) request= VENDOR_READ_NREQUEST; + else request= VENDOR_READ_REQUEST; res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), - VENDOR_READ_REQUEST, VENDOR_READ_REQUEST_TYPE, + request, VENDOR_READ_REQUEST_TYPE, value, 0, buf, 1, 100); if (res != 1) { dev_err(dev, "%s - failed to read [%04x]: %d\n", __func__, @@ -201,12 +239,18 @@ static int pl2303_vendor_write(struct usb_serial *serial, u16 value, u16 index) { struct device *dev = &serial->interface->dev; + struct pl2303_serial_private *spriv = usb_get_serial_data(serial); int res; + __u8 request; dev_dbg(dev, "%s - [%04x] = %02x\n", __func__, value, index); + /* Identification old / new write request */ + if (spriv->quirks & PL2303_QUIRK_LEGACY_N) request= VENDOR_WRITE_NREQUEST; + else request= VENDOR_WRITE_REQUEST; + res = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), - VENDOR_WRITE_REQUEST, VENDOR_WRITE_REQUEST_TYPE, + request, VENDOR_WRITE_REQUEST_TYPE, value, index, NULL, 0, 100); if (res) { dev_err(dev, "%s - failed to write [%04x]: %d\n", __func__, @@ -286,6 +330,7 @@ struct pl2303_serial_private *spriv; enum pl2303_type type = TYPE_01; unsigned char *buf; + int res; spriv = kzalloc(sizeof(*spriv), GFP_KERNEL); if (!spriv) @@ -307,26 +352,38 @@ type = TYPE_01; /* type 1 */ dev_dbg(&serial->interface->dev, "device type: %d\n", type); + /* new chip ? */ + if(serial->dev->descriptor.bcdUSB == 0x0200) { + res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), + VENDOR_READ_REQUEST, VENDOR_READ_REQUEST_TYPE, + 0x8484, 0, buf, 1, 100); + if (res != 1) { + type = TYPE_HXN; /* new type HXN */ + } + } + spriv->type = &pl2303_type_data[type]; spriv->quirks = (unsigned long)usb_get_serial_data(serial); spriv->quirks |= spriv->type->quirks; usb_set_serial_data(serial, spriv); - pl2303_vendor_read(serial, 0x8484, buf); - pl2303_vendor_write(serial, 0x0404, 0); - pl2303_vendor_read(serial, 0x8484, buf); - pl2303_vendor_read(serial, 0x8383, buf); - pl2303_vendor_read(serial, 0x8484, buf); - pl2303_vendor_write(serial, 0x0404, 1); - pl2303_vendor_read(serial, 0x8484, buf); - pl2303_vendor_read(serial, 0x8383, buf); - pl2303_vendor_write(serial, 0, 1); - pl2303_vendor_write(serial, 1, 0); - if (spriv->quirks & PL2303_QUIRK_LEGACY) - pl2303_vendor_write(serial, 2, 0x24); - else - pl2303_vendor_write(serial, 2, 0x44); + if(type != TYPE_HXN) { + pl2303_vendor_read(serial, 0x8484, buf); + pl2303_vendor_write(serial, 0x0404, 0); + pl2303_vendor_read(serial, 0x8484, buf); + pl2303_vendor_read(serial, 0x8383, buf); + pl2303_vendor_read(serial, 0x8484, buf); + pl2303_vendor_write(serial, 0x0404, 1); + pl2303_vendor_read(serial, 0x8484, buf); + pl2303_vendor_read(serial, 0x8383, buf); + pl2303_vendor_write(serial, 0, 1); + pl2303_vendor_write(serial, 1, 0); + if (spriv->quirks & PL2303_QUIRK_LEGACY) + pl2303_vendor_write(serial, 2, 0x24); + else + pl2303_vendor_write(serial, 2, 0x44); + } kfree(buf); @@ -673,13 +730,33 @@ if (C_CRTSCTS(tty)) { if (spriv->quirks & PL2303_QUIRK_LEGACY) pl2303_vendor_write(serial, 0x0, 0x41); + else if(spriv->quirks & PL2303_QUIRK_LEGACY_N) + pl2303_vendor_write(serial, 0x0A, 0xFA); /* New chip */ else pl2303_vendor_write(serial, 0x0, 0x61); } else if (I_IXON(tty) && !I_IXANY(tty) && START_CHAR(tty) == 0x11 && STOP_CHAR(tty) == 0x13) { - pl2303_vendor_write(serial, 0x0, 0xc0); + if(spriv->quirks & PL2303_QUIRK_LEGACY_N) + pl2303_vendor_write(serial, 0x0A, 0xEE); /* New chip */ + else + pl2303_vendor_write(serial, 0x0, 0xc0); } else { - pl2303_vendor_write(serial, 0x0, 0x0); + if(spriv->quirks & PL2303_QUIRK_LEGACY_N) + pl2303_vendor_write(serial, 0x0A, 0xFF); /* New chip */ + else + pl2303_vendor_write(serial, 0x0, 0x0); + } + + /* Old chip, External Pull-Up Mode */ + if(spriv->quirks & PL2303_QUIRK_LEGACY_HX){ + pl2303_vendor_read(serial, 0x8484, buf); + pl2303_vendor_write(serial, 0x0404, 0x09); + pl2303_vendor_read(serial, 0x8484, buf); + pl2303_vendor_read(serial, 0x8383, buf); + if((u16)*buf & 0x08){ + pl2303_vendor_write(serial, 0x0, 0x31); + pl2303_vendor_write(serial, 0x1, 0x01); + } } kfree(buf); @@ -720,8 +797,12 @@ usb_clear_halt(serial->dev, port->read_urb->pipe); } else { /* reset upstream data pipes */ - pl2303_vendor_write(serial, 8, 0); - pl2303_vendor_write(serial, 9, 0); + if(spriv->quirks & PL2303_QUIRK_LEGACY_N) + pl2303_vendor_write(serial, 7, 0); /* reset new chip */ + else { + pl2303_vendor_write(serial, 8, 0); + pl2303_vendor_write(serial, 9, 0); + } } /* Setup termios */ @@ -1040,3 +1121,5 @@ MODULE_DESCRIPTION("Prolific PL2303 USB to serial adaptor driver"); MODULE_LICENSE("GPL v2"); + +/* Signed-off-by: Charles Yeh */ diff -uNr old/pl2303.h new/pl2303.h --- old/pl2303.h 2018-11-07 23:21:00.000000000 +0800 +++ new/pl2303.h 2018-12-06 23:41:48.961191873 +0800 @@ -3,6 +3,21 @@ * Prolific PL2303 USB to serial adaptor driver header file */ +/* + * Author: Charles Yeh + * + * Date: 2018-12-07 + * + * Prolific designed a new series of USB to UART chips: PL2303HXN + * + * These new chip names are PL2303GC, PL2303GS, PL2303GB, PL2303GT, PL2303GL, PL2303GE & PL2303TB , + * which are different from the old chip: PL2303HX + * + * The patch file can support PL2303HX(old chip) and PL2303HXN(new chip). + * + * Signed-off-by: Charles Yeh + */ + #define BENQ_VENDOR_ID 0x04a5 #define BENQ_PRODUCT_ID_S81 0x4027 @@ -20,6 +35,18 @@ #define PL2303_PRODUCT_ID_MOTOROLA 0x0307 #define PL2303_PRODUCT_ID_ZTEK 0xe1f1 +/* PL2303TB */ +#define PL2303_PRODUCT_ID_TB 0x2304 + +/* PL2303N */ +#define PL2303G_PRODUCT_ID_GC 0x23A3 +#define PL2303G_PRODUCT_ID_GB 0x23B3 +#define PL2303G_PRODUCT_ID_GT 0x23C3 +#define PL2303G_PRODUCT_ID_GL 0x23D3 +#define PL2303G_PRODUCT_ID_GE 0x23E3 +#define PL2303G_PRODUCT_ID_GS 0x23F3 + + #define ATEN_VENDOR_ID 0x0557 #define ATEN_VENDOR_ID2 0x0547 #define ATEN_PRODUCT_ID 0x2008 @@ -148,3 +175,4 @@ #define SMART_VENDOR_ID 0x0b8c #define SMART_PRODUCT_ID 0x2303 +/* Signed-off-by: Charles Yeh */