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Date: Sun, 15 Nov 2009 00:53:14 -0800
From: Dmitry Torokhov <dmitry.torokhov@...il.com>
To: Maxim Levitsky <maximlevitsky@...il.com>
Cc: linux-kernel <linux-kernel@...r.kernel.org>,
Vojtech Pavlik <vojtech@...e.cz>
Subject: Re: [PATCH v2] ALPS: Add support for 4 directions button on Acer
Aspire 5720
Hi Maxim,
On Wed, Nov 11, 2009 at 11:09:50AM +0200, Maxim Levitsky wrote:
> >From 6b263982ffd62ae4621a5202f0084983af8dc093 Mon Sep 17 00:00:00 2001
> From: Maxim Levitsky <maximlevitsky@...il.com>
> Date: Wed, 11 Nov 2009 11:03:35 +0200
> Subject: [PATCH] ALPS: Add support for 4 directions button on Acer Aspire 5720
> Implemented using DMI due to uncertainty about systems that have
> only the middle button
>
> Signed-off-by: Maxim Levitsky <maximlevitsky@...il.com>
I don't think that we need to do DMI checking. I looked through my mails
and it looks like all Acers with that signature have 4-directional
button while Volstro 1400 only has left and right button and so won't be
affected. Also Synaptics driver treats BTN_0 as BTN_FORWARD and BTN_1
as BTN_BACK by default so we should still be compatible.
Could you please try the patch below? It assumes that psmosue core does
not set up BTN_MIDDLE capability ahead of time though (see a patch
posted earlier today).
--
Dmitry
Input: ALPS - add support for 4 directions button on Acer Aspire 5720
From: Maxim Levitsky <maximlevitsky@...il.com>
Signed-off-by: Maxim Levitsky <maximlevitsky@...il.com>
Signed-off-by: Dmitry Torokhov <dtor@...l.ru>
---
drivers/input/mouse/alps.c | 61 ++++++++++++++++++++++++++++++--------------
1 files changed, 42 insertions(+), 19 deletions(-)
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index f361106..01d354f 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -28,13 +28,16 @@
#define dbg(format, arg...) do {} while (0)
#endif
-#define ALPS_DUALPOINT 0x01
-#define ALPS_WHEEL 0x02
-#define ALPS_FW_BK_1 0x04
-#define ALPS_4BTN 0x08
-#define ALPS_OLDPROTO 0x10
-#define ALPS_PASS 0x20
-#define ALPS_FW_BK_2 0x40
+
+#define ALPS_OLDPROTO 0x01 /* old style input */
+#define ALPS_DUALPOINT 0x02 /* touchpad has trackstick */
+#define ALPS_PASS 0x04 /* device has a pass-through port */
+
+#define ALPS_WHEEL 0x08 /* hardware wheel present */
+#define ALPS_FW_BK_1 0x10 /* front & back buttons present */
+#define ALPS_FW_BK_2 0x20 /* front & back buttons present */
+#define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */
+
static const struct alps_model_info alps_model_data[] = {
{ { 0x32, 0x02, 0x14 }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */
@@ -56,7 +59,7 @@ static const struct alps_model_info alps_model_data[] = {
{ { 0x22, 0x02, 0x0a }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT },
{ { 0x22, 0x02, 0x14 }, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */
{ { 0x62, 0x02, 0x14 }, 0xcf, 0xcf, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude E6500 */
- { { 0x73, 0x02, 0x50 }, 0xcf, 0xcf, ALPS_FW_BK_1 }, /* Dell Vostro 1400 */
+ { { 0x73, 0x02, 0x50 }, 0xcf, 0xcf, ALPS_FOUR_BUTTONS }, /* Dell Vostro 1400 */
};
/*
@@ -83,6 +86,7 @@ static const struct alps_model_info alps_model_data[] = {
static void alps_process_packet(struct psmouse *psmouse)
{
struct alps_data *priv = psmouse->private;
+ const struct alps_model_info *model = priv->i;
unsigned char *packet = psmouse->packet;
struct input_dev *dev = psmouse->dev;
struct input_dev *dev2 = priv->dev2;
@@ -101,7 +105,7 @@ static void alps_process_packet(struct psmouse *psmouse)
return;
}
- if (priv->i->flags & ALPS_OLDPROTO) {
+ if (model->flags & ALPS_OLDPROTO) {
left = packet[2] & 0x10;
right = packet[2] & 0x08;
middle = 0;
@@ -117,12 +121,12 @@ static void alps_process_packet(struct psmouse *psmouse)
z = packet[5];
}
- if (priv->i->flags & ALPS_FW_BK_1) {
+ if (model->flags & ALPS_FW_BK_1) {
back = packet[0] & 0x10;
forward = packet[2] & 4;
}
- if (priv->i->flags & ALPS_FW_BK_2) {
+ if (model->flags & ALPS_FW_BK_2) {
back = packet[3] & 4;
forward = packet[2] & 4;
if ((middle = forward && back))
@@ -132,7 +136,7 @@ static void alps_process_packet(struct psmouse *psmouse)
ges = packet[2] & 1;
fin = packet[2] & 2;
- if ((priv->i->flags & ALPS_DUALPOINT) && z == 127) {
+ if ((model->flags & ALPS_DUALPOINT) && z == 127) {
input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x));
input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y));
@@ -150,7 +154,8 @@ static void alps_process_packet(struct psmouse *psmouse)
input_report_key(dev, BTN_MIDDLE, middle);
/* Convert hardware tap to a reasonable Z value */
- if (ges && !fin) z = 40;
+ if (ges && !fin)
+ z = 40;
/*
* A "tap and drag" operation is reported by the hardware as a transition
@@ -166,8 +171,10 @@ static void alps_process_packet(struct psmouse *psmouse)
}
priv->prev_fin = fin;
- if (z > 30) input_report_key(dev, BTN_TOUCH, 1);
- if (z < 25) input_report_key(dev, BTN_TOUCH, 0);
+ if (z > 30)
+ input_report_key(dev, BTN_TOUCH, 1);
+ if (z < 25)
+ input_report_key(dev, BTN_TOUCH, 0);
if (z > 0) {
input_report_abs(dev, ABS_X, x);
@@ -177,14 +184,21 @@ static void alps_process_packet(struct psmouse *psmouse)
input_report_abs(dev, ABS_PRESSURE, z);
input_report_key(dev, BTN_TOOL_FINGER, z > 0);
- if (priv->i->flags & ALPS_WHEEL)
+ if (model->flags & ALPS_WHEEL)
input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07));
- if (priv->i->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) {
+ if (model->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) {
input_report_key(dev, BTN_FORWARD, forward);
input_report_key(dev, BTN_BACK, back);
}
+ if (model->flags & ALPS_FOUR_BUTTONS) {
+ input_report_key(dev, BTN_0, packet[2] & 4);
+ input_report_key(dev, BTN_1, packet[0] & 0x10);
+ input_report_key(dev, BTN_2, packet[3] & 4);
+ input_report_key(dev, BTN_3, packet[0] & 0x20);
+ }
+
input_sync(dev);
}
@@ -469,8 +483,8 @@ int alps_init(struct psmouse *psmouse)
dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY);
dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH);
dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER);
- dev1->keybit[BIT_WORD(BTN_LEFT)] |= BIT_MASK(BTN_LEFT) |
- BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
+ dev1->keybit[BIT_WORD(BTN_LEFT)] |=
+ BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT);
dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS);
input_set_abs_params(dev1, ABS_X, 0, 1023, 0, 0);
@@ -487,6 +501,15 @@ int alps_init(struct psmouse *psmouse)
dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK);
}
+ if (priv->i->flags & ALPS_FOUR_BUTTONS) {
+ dev1->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0);
+ dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1);
+ dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2);
+ dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3);
+ } else {
+ dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE);
+ }
+
snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys);
dev2->phys = priv->phys;
dev2->name = (priv->i->flags & ALPS_DUALPOINT) ? "DualPoint Stick" : "PS/2 Mouse";
--
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