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Message-Id: <201012220058.43366@rk-nord.at>
Date: Wed, 22 Dec 2010 00:58:42 +0100
From: Melchior FRANZ <melchior.franz@...il.com>
To: linux-usb@...r.kernel.org, Greg KH <greg@...ah.com>,
linux-kernel@...r.kernel.org
Subject: [PATCH v2] USB: add support for Dream Cheeky DL100B Webmail Notifier (1d34:0004)
From: Melchior FRANZ <mfranz@....at>
So far the USBLED driver only supports Delcom's "USB Visual Signal
Indicator" (http://www.delcomproducts.com/products_USBLMP.asp). The
driver generates virtual files "red", "green", and "blue" under the
device's /sys/ directory, where color values can be read from and
written to.
This patch adds support for Dream Cheeky's "DL100B Webmail Notifier"
(http://www.dreamcheeky.com/webmail-notifier -- available from several
shops, such as http://www.conrad.at/ce/de/product/777048/USB-WEBMAIL).
This device isn't as pretty as Delcom's, but it's *far* cheaper, and
its 3 LEDs can be set in 32 brightness steps each. The grey envelope
contour can easily be removed, leaving a rather neutral white box (with
a few small holes), which is useful for generic signalling purposes.
Of course, the small circuit board can easily be put into a prettier
case.
The DL100B device pretends to be a HID, but the HID descriptor shows
that it's not overly useful as such (see below). The patch therefore
removes the "HID-ness" (hid-core.c, hid-ids.h), and adds the necessary
commands to usbled.c. The protocol info comes from the developer's
manual that Dream Cheeky kindly provided (815DeveloperManual.pdf).
HID descriptor:
0: 05 01 Usage Page 'Generic Desktop Controls'
2: 09 10 Usage 'Reserved'
4: a1 01 Collection 'Application (mouse, keyboard)'
6: 05 00 Usage Page 'Undefined'
8: 19 10 Usage Minimum = 16
10: 29 11 Usage Maximum = 17
12: 15 00 Logical Minimum = 0
14: 25 0f Logical Maximum = 15
16: 75 08 Report Size = 8
18: 95 08 Report Count = 8
20: 91 02 Output data *var abs lin pref-state null-pos non-vol bit-field
22: 19 10 Usage Minimum = 16
24: 29 11 Usage Maximum = 17
26: 15 00 Logical Minimum = 0
28: 25 0f Logical Maximum = 15
30: 75 08 Report Size = 8
32: 95 08 Report Count = 8
34: 81 00 Input data array abs lin pref-state null-pos non-vol bit-field
36: c0 End Collection
Signed-off-by: Melchior FRANZ <mfranz@....at>
---
Greg: I hope I understood your instructions correctly. :-)
Some notes:
- I increased the file's version number (1.1 -> 1.2). Hope that's OK.
- There were two differently capitalized ENOMEM messages with the same
contents before, and as I had to add a third one, I de-capitalized one
for consistency reasons.
- The patch removes the three color #define-s, as they are no longer
suitable on the top level, and puts the values directly in the code.
This should be clear enough, as the respective color is mentioned
in the line before. (I considered to use "const" values or an enum,
but both generated different, more verbose code.)
Please review again and consider for inclusion. (The patch is diffed
against 2.6.36.2.)
drivers/hid/hid-core.c | 1 +
drivers/hid/hid-ids.h | 2 +
drivers/usb/misc/usbled.c | 118 ++++++++++++++++++++++++++++++++++-----------
3 files changed, 93 insertions(+), 28 deletions(-)
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index a0dea3d..cb904d2 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1594,6 +1594,7 @@ static const struct hid_device_id hid_ignore_list[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index c5ae5f1..650c7b2 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -197,6 +197,8 @@
#define USB_VENDOR_ID_ELECOM 0x056e
#define USB_DEVICE_ID_ELECOM_BM084 0x0061
+#define USB_VENDOR_ID_DREAM_CHEEKY 0x1d34
+
#define USB_VENDOR_ID_ELO 0x04E7
#define USB_DEVICE_ID_ELO_TS2700 0x0020
diff --git a/drivers/usb/misc/usbled.c b/drivers/usb/misc/usbled.c
index c96f51d..558a495 100644
--- a/drivers/usb/misc/usbled.c
+++ b/drivers/usb/misc/usbled.c
@@ -1,5 +1,5 @@
/*
- * USB LED driver - 1.1
+ * USB LED driver - 1.2
*
* Copyright (C) 2004 Greg Kroah-Hartman (greg@...ah.com)
*
@@ -20,12 +20,17 @@
#define DRIVER_AUTHOR "Greg Kroah-Hartman, greg@...ah.com"
#define DRIVER_DESC "USB LED Driver"
-#define VENDOR_ID 0x0fc5
-#define PRODUCT_ID 0x1223
+enum led_type {
+ DELCOM_VISUAL_SIGNAL_INDICATOR,
+ DREAM_CHEEKY_WEBMAIL_NOTIFIER,
+};
/* table of devices that work with this driver */
static const struct usb_device_id id_table[] = {
- { USB_DEVICE(VENDOR_ID, PRODUCT_ID) },
+ { USB_DEVICE(0x0fc5, 0x1223),
+ .driver_info = DELCOM_VISUAL_SIGNAL_INDICATOR },
+ { USB_DEVICE(0x1d34, 0x0004),
+ .driver_info = DREAM_CHEEKY_WEBMAIL_NOTIFIER },
{ },
};
MODULE_DEVICE_TABLE (usb, id_table);
@@ -35,15 +40,12 @@ struct usb_led {
unsigned char blue;
unsigned char red;
unsigned char green;
+ enum led_type type;
};
-#define BLUE 0x04
-#define RED 0x02
-#define GREEN 0x01
static void change_color(struct usb_led *led)
{
int retval;
- unsigned char color = 0x07;
unsigned char *buffer;
buffer = kmalloc(8, GFP_KERNEL);
@@ -52,25 +54,59 @@ static void change_color(struct usb_led *led)
return;
}
- if (led->blue)
- color &= ~(BLUE);
- if (led->red)
- color &= ~(RED);
- if (led->green)
- color &= ~(GREEN);
- dev_dbg(&led->udev->dev,
- "blue = %d, red = %d, green = %d, color = %.2x\n",
- led->blue, led->red, led->green, color);
-
- retval = usb_control_msg(led->udev,
- usb_sndctrlpipe(led->udev, 0),
- 0x12,
- 0xc8,
- (0x02 * 0x100) + 0x0a,
- (0x00 * 0x100) + color,
- buffer,
- 8,
- 2000);
+ switch (led->type) {
+ case DELCOM_VISUAL_SIGNAL_INDICATOR: {
+ unsigned char color = 0x07;
+
+ if (led->blue)
+ color &= ~0x04;
+ if (led->red)
+ color &= ~0x02;
+ if (led->green)
+ color &= ~0x01;
+ dev_dbg(&led->udev->dev,
+ "blue = %d, red = %d, green = %d, color = %.2x\n",
+ led->blue, led->red, led->green, color);
+
+ retval = usb_control_msg(led->udev,
+ usb_sndctrlpipe(led->udev, 0),
+ 0x12,
+ 0xc8,
+ (0x02 * 0x100) + 0x0a,
+ (0x00 * 0x100) + color,
+ buffer,
+ 8,
+ 2000);
+ break;
+ }
+
+ case DREAM_CHEEKY_WEBMAIL_NOTIFIER:
+ dev_dbg(&led->udev->dev,
+ "red = %d, green = %d, blue = %d\n",
+ led->red, led->green, led->blue);
+
+ buffer[0] = led->red;
+ buffer[1] = led->green;
+ buffer[2] = led->blue;
+ buffer[3] = buffer[4] = buffer[5] = 0;
+ buffer[6] = 0x1a;
+ buffer[7] = 0x05;
+
+ retval = usb_control_msg(led->udev,
+ usb_sndctrlpipe(led->udev, 0),
+ 0x09,
+ 0x21,
+ 0x200, The price difference to Delcom's thingy lets you a lot of room. :-)
+ 0,
+ buffer,
+ 8,
+ 2000);
+ break;
+
+ default:
+ dev_err(&led->udev->dev, "unknown device type %d\n", led->type);
+ }
+
if (retval)
dev_dbg(&led->udev->dev, "retval = %d\n", retval);
kfree(buffer);
@@ -107,11 +143,12 @@ static int led_probe(struct usb_interface *interface, const struct usb_device_id
dev = kzalloc(sizeof(struct usb_led), GFP_KERNEL);
if (dev == NULL) {
- dev_err(&interface->dev, "Out of memory\n");
+ dev_err(&interface->dev, "out of memory\n");
goto error_mem;
}
dev->udev = usb_get_dev(udev);
+ dev->type = id->driver_info;
usb_set_intfdata (interface, dev);
@@ -125,6 +162,31 @@ static int led_probe(struct usb_interface *interface, const struct usb_device_id
if (retval)
goto error;
+ if (dev->type == DREAM_CHEEKY_WEBMAIL_NOTIFIER) {
+ unsigned char *enable;
+
+ enable = kmemdup("\x1f\x02\0\x5f\0\0\x1a\x03", 8, GFP_KERNEL);
+ if (!enable) {
+ dev_err(&interface->dev, "out of memory\n");
+ retval = -ENOMEM;
+ goto error;
+ }
+
+ retval = usb_control_msg(udev,
+ usb_sndctrlpipe(udev, 0),
+ 0x09,
+ 0x21,
+ 0x200,
+ 0,
+ enable,
+ 8,
+ 2000);
+
+ kfree(enable);
+ if (retval != 8)
+ goto error;
+ }
+
dev_info(&interface->dev, "USB LED device now attached\n");
return 0;
--
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