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authorOndrej Zary <linux@rainbow-software.org>2009-08-06 16:09:52 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2009-09-23 06:46:32 -0700
commit5128a66c6605d8178f69b7a8f2a70060933a26b4 (patch)
tree9f0c8b119d7fcbfe821af683bd808f75892b5099 /drivers/usb/serial
parent7b4361f0848193ddc36dfb2c9a7391c56a9df2ad (diff)
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>
Diffstat (limited to 'drivers/usb/serial')
-rw-r--r--drivers/usb/serial/ark3116.c24
1 files changed, 23 insertions, 1 deletions
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index 5d25d3e52bf..131e61adaaf 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -31,10 +31,20 @@ static int debug;
static struct usb_device_id id_table [] = {
{ USB_DEVICE(0x6547, 0x0232) },
+ { USB_DEVICE(0x18ec, 0x3118) }, /* USB to IrDA adapter */
{ },
};
MODULE_DEVICE_TABLE(usb, id_table);
+static int is_irda(struct usb_serial *serial)
+{
+ struct usb_device *dev = serial->dev;
+ if (le16_to_cpu(dev->descriptor.idVendor) == 0x18ec &&
+ le16_to_cpu(dev->descriptor.idProduct) == 0x3118)
+ return 1;
+ return 0;
+}
+
static inline void ARK3116_SND(struct usb_serial *serial, int seq,
__u8 request, __u8 requesttype,
__u16 value, __u16 index)
@@ -84,11 +94,21 @@ static int ark3116_attach(struct usb_serial *serial)
return -ENOMEM;
}
+ if (is_irda(serial))
+ dbg("IrDA mode");
+
/* 3 */
ARK3116_SND(serial, 3, 0xFE, 0x40, 0x0008, 0x0002);
ARK3116_SND(serial, 4, 0xFE, 0x40, 0x0008, 0x0001);
ARK3116_SND(serial, 5, 0xFE, 0x40, 0x0000, 0x0008);
- ARK3116_SND(serial, 6, 0xFE, 0x40, 0x0000, 0x000B);
+ ARK3116_SND(serial, 6, 0xFE, 0x40, is_irda(serial) ? 0x0001 : 0x0000,
+ 0x000B);
+
+ if (is_irda(serial)) {
+ ARK3116_SND(serial, 1001, 0xFE, 0x40, 0x0000, 0x000C);
+ ARK3116_SND(serial, 1002, 0xFE, 0x40, 0x0041, 0x000D);
+ ARK3116_SND(serial, 1003, 0xFE, 0x40, 0x0001, 0x000A);
+ }
/* <-- seq7 */
ARK3116_RCV(serial, 7, 0xFE, 0xC0, 0x0000, 0x0003, 0x00, buf);
@@ -125,6 +145,8 @@ static int ark3116_attach(struct usb_serial *serial)
ARK3116_SND(serial, 147, 0xFE, 0x40, 0x0083, 0x0003);
ARK3116_SND(serial, 148, 0xFE, 0x40, 0x0038, 0x0000);
ARK3116_SND(serial, 149, 0xFE, 0x40, 0x0001, 0x0001);
+ if (is_irda(serial))
+ ARK3116_SND(serial, 1004, 0xFE, 0x40, 0x0000, 0x0009);
ARK3116_SND(serial, 150, 0xFE, 0x40, 0x0003, 0x0003);
ARK3116_RCV(serial, 151, 0xFE, 0xC0, 0x0000, 0x0004, 0x03, buf);
ARK3116_SND(serial, 152, 0xFE, 0x40, 0x0000, 0x0003);