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-rw-r--r--drivers/input/mouse/Kconfig2
-rw-r--r--drivers/input/mouse/elantech.c32
-rw-r--r--drivers/input/mouse/pxa930_trkball.c2
-rw-r--r--drivers/input/mouse/synaptics.c9
4 files changed, 30 insertions, 15 deletions
diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
index 093c8c1bca7..9705f3a00a3 100644
--- a/drivers/input/mouse/Kconfig
+++ b/drivers/input/mouse/Kconfig
@@ -70,7 +70,7 @@ config MOUSE_PS2_SYNAPTICS
config MOUSE_PS2_LIFEBOOK
bool "Fujitsu Lifebook PS/2 mouse protocol extension" if EMBEDDED
default y
- depends on MOUSE_PS2
+ depends on MOUSE_PS2 && X86
help
Say Y here if you have a Fujitsu B-series Lifebook PS/2
TouchScreen connected to your system.
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index b9a25d57bc5..6ab0eb1ada1 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -542,7 +542,7 @@ int elantech_detect(struct psmouse *psmouse, int set_properties)
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) {
- pr_err("elantech.c: sending Elantech magic knock failed.\n");
+ pr_debug("elantech.c: sending Elantech magic knock failed.\n");
return -1;
}
@@ -551,8 +551,27 @@ int elantech_detect(struct psmouse *psmouse, int set_properties)
* set of magic numbers
*/
if (param[0] != 0x3c || param[1] != 0x03 || param[2] != 0xc8) {
- pr_info("elantech.c: unexpected magic knock result 0x%02x, 0x%02x, 0x%02x.\n",
- param[0], param[1], param[2]);
+ pr_debug("elantech.c: "
+ "unexpected magic knock result 0x%02x, 0x%02x, 0x%02x.\n",
+ param[0], param[1], param[2]);
+ return -1;
+ }
+
+ /*
+ * Query touchpad's firmware version and see if it reports known
+ * value to avoid mis-detection. Logitech mice are known to respond
+ * to Elantech magic knock and there might be more.
+ */
+ if (synaptics_send_cmd(psmouse, ETP_FW_VERSION_QUERY, param)) {
+ pr_debug("elantech.c: failed to query firmware version.\n");
+ return -1;
+ }
+
+ pr_debug("elantech.c: Elantech version query result 0x%02x, 0x%02x, 0x%02x.\n",
+ param[0], param[1], param[2]);
+
+ if (param[0] == 0 || param[1] != 0) {
+ pr_debug("elantech.c: Probably not a real Elantech touchpad. Aborting.\n");
return -1;
}
@@ -600,8 +619,7 @@ int elantech_init(struct psmouse *psmouse)
int i, error;
unsigned char param[3];
- etd = kzalloc(sizeof(struct elantech_data), GFP_KERNEL);
- psmouse->private = etd;
+ psmouse->private = etd = kzalloc(sizeof(struct elantech_data), GFP_KERNEL);
if (!etd)
return -1;
@@ -610,14 +628,12 @@ int elantech_init(struct psmouse *psmouse)
etd->parity[i] = etd->parity[i & (i - 1)] ^ 1;
/*
- * Find out what version hardware this is
+ * Do the version query again so we can store the result
*/
if (synaptics_send_cmd(psmouse, ETP_FW_VERSION_QUERY, param)) {
pr_err("elantech.c: failed to query firmware version.\n");
goto init_fail;
}
- pr_info("elantech.c: Elantech version query result 0x%02x, 0x%02x, 0x%02x.\n",
- param[0], param[1], param[2]);
etd->fw_version_maj = param[0];
etd->fw_version_min = param[2];
diff --git a/drivers/input/mouse/pxa930_trkball.c b/drivers/input/mouse/pxa930_trkball.c
index d297accf9a7..1e827ad0afb 100644
--- a/drivers/input/mouse/pxa930_trkball.c
+++ b/drivers/input/mouse/pxa930_trkball.c
@@ -83,7 +83,7 @@ static int write_tbcr(struct pxa930_trkball *trkball, int v)
__raw_writel(v, trkball->mmio_base + TBCR);
- while (i--) {
+ while (--i) {
if (__raw_readl(trkball->mmio_base + TBCR) == v)
break;
msleep(1);
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 865fc69e9bc..f3e4f7b0240 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -182,11 +182,6 @@ static int synaptics_identify(struct psmouse *psmouse)
static int synaptics_query_hardware(struct psmouse *psmouse)
{
- int retries = 0;
-
- while ((retries++ < 3) && psmouse_reset(psmouse))
- /* empty */;
-
if (synaptics_identify(psmouse))
return -1;
if (synaptics_model_id(psmouse))
@@ -582,6 +577,8 @@ static int synaptics_reconnect(struct psmouse *psmouse)
struct synaptics_data *priv = psmouse->private;
struct synaptics_data old_priv = *priv;
+ psmouse_reset(psmouse);
+
if (synaptics_detect(psmouse, 0))
return -1;
@@ -640,6 +637,8 @@ int synaptics_init(struct psmouse *psmouse)
if (!priv)
return -1;
+ psmouse_reset(psmouse);
+
if (synaptics_query_hardware(psmouse)) {
printk(KERN_ERR "Unable to query Synaptics hardware.\n");
goto init_fail;