USB: ark3116: add IrDA support for Gembird UIR-22
Add IrDA support to ark3116 driver. This makes Gembird UIR-22 USB to IrDA adapter work (vendor ID 0x18ec, device ID 0x3118). This adapter contains ARK3116T USB serial chip and an IrDA transceiver, thus a command like "irattach /dev/ttyUSB0 -s" is needed. All magic numbers were captured using usbsnoop from windows driver that came with the device. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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7b4361f084
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5128a66c66
1 changed files with 23 additions and 1 deletions
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@ -31,10 +31,20 @@ static int debug;
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static struct usb_device_id id_table [] = {
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{ USB_DEVICE(0x6547, 0x0232) },
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{ USB_DEVICE(0x18ec, 0x3118) }, /* USB to IrDA adapter */
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{ },
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};
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MODULE_DEVICE_TABLE(usb, id_table);
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static int is_irda(struct usb_serial *serial)
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{
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struct usb_device *dev = serial->dev;
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if (le16_to_cpu(dev->descriptor.idVendor) == 0x18ec &&
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le16_to_cpu(dev->descriptor.idProduct) == 0x3118)
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return 1;
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return 0;
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}
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static inline void ARK3116_SND(struct usb_serial *serial, int seq,
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__u8 request, __u8 requesttype,
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__u16 value, __u16 index)
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@ -84,11 +94,21 @@ static int ark3116_attach(struct usb_serial *serial)
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return -ENOMEM;
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}
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if (is_irda(serial))
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dbg("IrDA mode");
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/* 3 */
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ARK3116_SND(serial, 3, 0xFE, 0x40, 0x0008, 0x0002);
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ARK3116_SND(serial, 4, 0xFE, 0x40, 0x0008, 0x0001);
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ARK3116_SND(serial, 5, 0xFE, 0x40, 0x0000, 0x0008);
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ARK3116_SND(serial, 6, 0xFE, 0x40, 0x0000, 0x000B);
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ARK3116_SND(serial, 6, 0xFE, 0x40, is_irda(serial) ? 0x0001 : 0x0000,
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0x000B);
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if (is_irda(serial)) {
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ARK3116_SND(serial, 1001, 0xFE, 0x40, 0x0000, 0x000C);
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ARK3116_SND(serial, 1002, 0xFE, 0x40, 0x0041, 0x000D);
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ARK3116_SND(serial, 1003, 0xFE, 0x40, 0x0001, 0x000A);
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}
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/* <-- seq7 */
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ARK3116_RCV(serial, 7, 0xFE, 0xC0, 0x0000, 0x0003, 0x00, buf);
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@ -125,6 +145,8 @@ static int ark3116_attach(struct usb_serial *serial)
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ARK3116_SND(serial, 147, 0xFE, 0x40, 0x0083, 0x0003);
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ARK3116_SND(serial, 148, 0xFE, 0x40, 0x0038, 0x0000);
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ARK3116_SND(serial, 149, 0xFE, 0x40, 0x0001, 0x0001);
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if (is_irda(serial))
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ARK3116_SND(serial, 1004, 0xFE, 0x40, 0x0000, 0x0009);
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ARK3116_SND(serial, 150, 0xFE, 0x40, 0x0003, 0x0003);
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ARK3116_RCV(serial, 151, 0xFE, 0xC0, 0x0000, 0x0004, 0x03, buf);
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ARK3116_SND(serial, 152, 0xFE, 0x40, 0x0000, 0x0003);
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