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path: root/drivers/input/mouse/synaptics.c
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Diffstat (limited to 'drivers/input/mouse/synaptics.c')
-rw-r--r--drivers/input/mouse/synaptics.c95
1 files changed, 71 insertions, 24 deletions
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index d3f5243fa093..705589dc9ac5 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -28,6 +28,7 @@
#include <linux/input.h>
#include <linux/serio.h>
#include <linux/libps2.h>
+#include <linux/slab.h>
#include "psmouse.h"
#include "synaptics.h"
@@ -35,6 +36,8 @@
* The x/y limits are taken from the Synaptics TouchPad interfacing Guide,
* section 2.3.2, which says that they should be valid regardless of the
* actual size of the sensor.
+ * Note that newer firmware allows querying device for maximum useable
+ * coordinates.
*/
#define XMIN_NOMINAL 1472
#define XMAX_NOMINAL 5472
@@ -136,9 +139,15 @@ static int synaptics_capability(struct psmouse *psmouse)
if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap))
return -1;
priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2];
- priv->ext_cap = 0;
- if (!SYN_CAP_VALID(priv->capabilities))
+ priv->ext_cap = priv->ext_cap_0c = 0;
+
+ /*
+ * Older firmwares had submodel ID fixed to 0x47
+ */
+ if (SYN_ID_FULL(priv->identity) < 0x705 &&
+ SYN_CAP_SUBMODEL_ID(priv->capabilities) != 0x47) {
return -1;
+ }
/*
* Unless capExtended is set the rest of the flags should be ignored
@@ -149,7 +158,7 @@ static int synaptics_capability(struct psmouse *psmouse)
if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) {
if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) {
printk(KERN_ERR "Synaptics claims to have extended capabilities,"
- " but I'm not able to read them.");
+ " but I'm not able to read them.\n");
} else {
priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2];
@@ -161,6 +170,16 @@ static int synaptics_capability(struct psmouse *psmouse)
priv->ext_cap &= 0xff0fff;
}
}
+
+ if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) {
+ if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) {
+ printk(KERN_ERR "Synaptics claims to have extended capability 0x0c,"
+ " but I'm not able to read it.\n");
+ } else {
+ priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2];
+ }
+ }
+
return 0;
}
@@ -182,23 +201,34 @@ static int synaptics_identify(struct psmouse *psmouse)
}
/*
- * Read touchpad resolution
+ * Read touchpad resolution and maximum reported coordinates
* Resolution is left zero if touchpad does not support the query
*/
static int synaptics_resolution(struct psmouse *psmouse)
{
struct synaptics_data *priv = psmouse->private;
unsigned char res[3];
+ unsigned char max[3];
if (SYN_ID_MAJOR(priv->identity) < 4)
return 0;
- if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, res))
- return 0;
+ if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, res) == 0) {
+ if (res[0] != 0 && (res[1] & 0x80) && res[2] != 0) {
+ priv->x_res = res[0]; /* x resolution in units/mm */
+ priv->y_res = res[2]; /* y resolution in units/mm */
+ }
+ }
- if ((res[0] != 0) && (res[1] & 0x80) && (res[2] != 0)) {
- priv->x_res = res[0]; /* x resolution in units/mm */
- priv->y_res = res[2]; /* y resolution in units/mm */
+ if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 &&
+ SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) {
+ if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_DIMENSIONS, max)) {
+ printk(KERN_ERR "Synaptics claims to have dimensions query,"
+ " but I'm not able to read it.\n");
+ } else {
+ priv->x_max = (max[0] << 5) | ((max[1] & 0x0f) << 1);
+ priv->y_max = (max[2] << 5) | ((max[1] & 0xf0) >> 3);
+ }
}
return 0;
@@ -347,7 +377,15 @@ static void synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data
hw->left = (buf[0] & 0x01) ? 1 : 0;
hw->right = (buf[0] & 0x02) ? 1 : 0;
- if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
+ if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
+ /*
+ * Clickpad's button is transmitted as middle button,
+ * however, since it is primary button, we will report
+ * it as BTN_LEFT.
+ */
+ hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
+
+ } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
if (hw->w == 2)
hw->scroll = (signed char)(buf[1]);
@@ -500,19 +538,20 @@ static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned cha
return 0;
switch (pkt_type) {
- case SYN_NEWABS:
- case SYN_NEWABS_RELAXED:
- return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx];
- case SYN_NEWABS_STRICT:
- return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx];
+ case SYN_NEWABS:
+ case SYN_NEWABS_RELAXED:
+ return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx];
+
+ case SYN_NEWABS_STRICT:
+ return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx];
- case SYN_OLDABS:
- return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx];
+ case SYN_OLDABS:
+ return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx];
- default:
- printk(KERN_ERR "synaptics: unknown packet type %d\n", pkt_type);
- return 0;
+ default:
+ printk(KERN_ERR "synaptics: unknown packet type %d\n", pkt_type);
+ return 0;
}
}
@@ -558,8 +597,10 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
int i;
__set_bit(EV_ABS, dev->evbit);
- input_set_abs_params(dev, ABS_X, XMIN_NOMINAL, XMAX_NOMINAL, 0, 0);
- input_set_abs_params(dev, ABS_Y, YMIN_NOMINAL, YMAX_NOMINAL, 0, 0);
+ input_set_abs_params(dev, ABS_X,
+ XMIN_NOMINAL, priv->x_max ?: XMAX_NOMINAL, 0, 0);
+ input_set_abs_params(dev, ABS_Y,
+ YMIN_NOMINAL, priv->y_max ?: YMAX_NOMINAL, 0, 0);
input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
__set_bit(ABS_TOOL_WIDTH, dev->absbit);
@@ -592,6 +633,12 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
dev->absres[ABS_X] = priv->x_res;
dev->absres[ABS_Y] = priv->y_res;
+
+ if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
+ /* Clickpads report only left button */
+ __clear_bit(BTN_RIGHT, dev->keybit);
+ __clear_bit(BTN_MIDDLE, dev->keybit);
+ }
}
static void synaptics_disconnect(struct psmouse *psmouse)
@@ -696,10 +743,10 @@ int synaptics_init(struct psmouse *psmouse)
priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS;
- printk(KERN_INFO "Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx\n",
+ printk(KERN_INFO "Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx\n",
SYN_ID_MODEL(priv->identity),
SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity),
- priv->model_id, priv->capabilities, priv->ext_cap);
+ priv->model_id, priv->capabilities, priv->ext_cap, priv->ext_cap_0c);
set_input_params(psmouse->dev, priv);
generated by cgit v1.2.3 (git 2.0.4) at 2024-04-16 14:29:14 +0000