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Message-Id: <1448372948-8861-3-git-send-email-adrienverge@gmail.com>
Date: Tue, 24 Nov 2015 14:49:08 +0100
From: Adrien Vergé <adrienverge@...il.com>
To: Oliver Neukum <oneukum@...e.com>
Cc: Jiri Kosina <jikos@...nel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Logan Gunthorpe <logang@...tatee.com>,
Hans de Goede <hdegoede@...hat.com>,
Vincent Palatin <vpalatin@...omium.org>,
Adrien Vergé <adrienverge@...il.com>,
Macpaul Lin <macpaul@...il.com>,
Adel Gadllah <adel.gadllah@...il.com>,
linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-usb@...r.kernel.org
Subject: [PATCH v3 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices
All ELAN hid devices seem to require the ALWAYS_POLL quirk. Let's use
this quirk for all devices from this vendor, rather than maintaining a
list of all its known product IDs.
To achieve that, this patch introduces a new hid_vendor_blacklist[] that
is checked when the product ID is not found in hid_product_blacklist[].
Tested-by: Adrien Vergé <adrienverge@...il.com>
Signed-off-by: Adrien Vergé <adrienverge@...il.com>
---
drivers/hid/hid-ids.h | 5 -----
drivers/hid/usbhid/hid-quirks.c | 43 +++++++++++++++++++++++++++--------------
2 files changed, 29 insertions(+), 19 deletions(-)
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index ac1feea..3c7e0c3 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -316,11 +316,6 @@
#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001 0xa001
#define USB_VENDOR_ID_ELAN 0x04f3
-#define USB_DEVICE_ID_ELAN_TOUCHSCREEN 0x0089
-#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_009B 0x009b
-#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_0103 0x0103
-#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_010c 0x010c
-#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F 0x016f
#define USB_VENDOR_ID_ELECOM 0x056e
#define USB_DEVICE_ID_ELECOM_BM084 0x0061
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 94bb137..9550497 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -21,15 +21,29 @@
#include "../hid-ids.h"
+struct hid_blacklist {
+ __u16 idVendor;
+ __u16 idProduct;
+ __u32 quirks;
+};
+
+/*
+ * Alphabetically sorted blacklist for vendor-global quirks. If a device matches
+ * both this blacklist and the product one (below), the more specific one
+ * (product ID) prevails.
+ */
+
+static const struct hid_blacklist hid_vendor_blacklist[] = {
+ { USB_VENDOR_ID_ELAN, 0, HID_QUIRK_ALWAYS_POLL },
+
+ { 0, 0, 0 }
+};
+
/*
* Alphabetically sorted blacklist by quirk type.
*/
-static const struct hid_blacklist {
- __u16 idVendor;
- __u16 idProduct;
- __u32 quirks;
-} hid_blacklist[] = {
+static const struct hid_blacklist hid_product_blacklist[] = {
{ USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_GAMEPAD, HID_QUIRK_BADPAD },
{ USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_PREDATOR, HID_QUIRK_BADPAD },
{ USB_VENDOR_ID_ALPS, USB_DEVICE_ID_IBM_GAMEPAD, HID_QUIRK_BADPAD },
@@ -72,11 +86,6 @@ static const struct hid_blacklist {
{ USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE, HID_QUIRK_ALWAYS_POLL },
{ USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_WIIU, HID_QUIRK_MULTI_INPUT },
- { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN, HID_QUIRK_ALWAYS_POLL },
- { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_009B, HID_QUIRK_ALWAYS_POLL },
- { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_0103, HID_QUIRK_ALWAYS_POLL },
- { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_010c, HID_QUIRK_ALWAYS_POLL },
- { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F, HID_QUIRK_ALWAYS_POLL },
{ USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS },
{ USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET },
@@ -337,10 +346,16 @@ static const struct hid_blacklist *usbhid_exists_squirk(const u16 idVendor,
const struct hid_blacklist *bl_entry = NULL;
int n = 0;
- for (; hid_blacklist[n].idVendor; n++)
- if (hid_blacklist[n].idVendor == idVendor &&
- hid_blacklist[n].idProduct == idProduct)
- bl_entry = &hid_blacklist[n];
+ for (; hid_product_blacklist[n].idVendor; n++)
+ if (hid_product_blacklist[n].idVendor == idVendor &&
+ hid_product_blacklist[n].idProduct == idProduct)
+ bl_entry = &hid_product_blacklist[n];
+
+ if (bl_entry == NULL) {
+ for (n = 0; hid_vendor_blacklist[n].idVendor; n++)
+ if (hid_vendor_blacklist[n].idVendor == idVendor)
+ bl_entry = &hid_vendor_blacklist[n];
+ }
if (bl_entry != NULL)
dbg_hid("Found squirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n",
--
2.4.3
--
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