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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-02 17:16:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-02 17:16:10 -0700
commitfc47912d9cda50ae6bd9ca30e97e8c03de5b7b60 (patch)
treed7da6ce3b23c1524e681ee33aa6e21d3c0586108 /drivers/input/mouse
parent06fe918e9f177dc2a0592b0ad40a6ce4920b2033 (diff)
parentdde3ada3d0069855eeb353707b2b0f946191cfd6 (diff)
downloadlinux-fc47912d9cda50ae6bd9ca30e97e8c03de5b7b60.tar.bz2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov: "A few drivers were updated with device tree bindings and others got a few small cleanups and fixes." Fix trivial conflict in drivers/input/keyboard/omap-keypad.c due to changes clashing with a whitespace cleanup. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (28 commits) Input: wacom - mark Intuos5 pad as in-prox when touching buttons Input: synaptics - adjust threshold for treating position values as negative Input: hgpk - use %*ph to dump small buffer Input: gpio_keys_polled - fix dt pdata->nbuttons Input: Add KD[GS]KBDIACRUC ioctls to the compatible list Input: omap-keypad - fixed formatting Input: tegra - move platform data header Input: wacom - add support for EMR on Cintiq 24HD touch Input: s3c2410_ts - make s3c_ts_pmops const Input: samsung-keypad - use of_get_child_count() helper Input: samsung-keypad - use of_match_ptr() Input: uinput - fix formatting Input: uinput - specify exact bit sizes on userspace APIs Input: uinput - mark failed submission requests as free Input: uinput - fix race that can block nonblocking read Input: uinput - return -EINVAL when read buffer size is too small Input: uinput - take event lock when fetching events from buffer Input: get rid of MATCH_BIT() macro Input: rotary-encoder - add DT bindings Input: rotary-encoder - constify platform data pointers ...
Diffstat (limited to 'drivers/input/mouse')
-rw-r--r--drivers/input/mouse/hgpk.c9
-rw-r--r--drivers/input/mouse/synaptics.c31
2 files changed, 26 insertions, 14 deletions
diff --git a/drivers/input/mouse/hgpk.c b/drivers/input/mouse/hgpk.c
index 575f880727fe..62be888e83d0 100644
--- a/drivers/input/mouse/hgpk.c
+++ b/drivers/input/mouse/hgpk.c
@@ -334,11 +334,8 @@ static bool hgpk_is_byte_valid(struct psmouse *psmouse, unsigned char *packet)
if (!valid)
psmouse_dbg(psmouse,
- "bad data, mode %d (%d) %02x %02x %02x %02x %02x %02x\n",
- priv->mode, pktcnt,
- psmouse->packet[0], psmouse->packet[1],
- psmouse->packet[2], psmouse->packet[3],
- psmouse->packet[4], psmouse->packet[5]);
+ "bad data, mode %d (%d) %*ph\n",
+ priv->mode, pktcnt, 6, psmouse->packet);
return valid;
}
@@ -1030,7 +1027,7 @@ static enum hgpk_model_t hgpk_get_model(struct psmouse *psmouse)
return -EIO;
}
- psmouse_dbg(psmouse, "ID: %02x %02x %02x\n", param[0], param[1], param[2]);
+ psmouse_dbg(psmouse, "ID: %*ph\n", 3, param);
/* HGPK signature: 0x67, 0x00, 0x<model> */
if (param[0] != 0x67 || param[1] != 0x00)
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 37033ade79d3..12d12ca3fee0 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -53,14 +53,19 @@
#define ABS_POS_BITS 13
/*
- * Any position values from the hardware above the following limits are
- * treated as "wrapped around negative" values that have been truncated to
- * the 13-bit reporting range of the hardware. These are just reasonable
- * guesses and can be adjusted if hardware is found that operates outside
- * of these parameters.
+ * These values should represent the absolute maximum value that will
+ * be reported for a positive position value. Some Synaptics firmware
+ * uses this value to indicate a finger near the edge of the touchpad
+ * whose precise position cannot be determined.
+ *
+ * At least one touchpad is known to report positions in excess of this
+ * value which are actually negative values truncated to the 13-bit
+ * reporting range. These values have never been observed to be lower
+ * than 8184 (i.e. -8), so we treat all values greater than 8176 as
+ * negative and any other value as positive.
*/
-#define X_MAX_POSITIVE (((1 << ABS_POS_BITS) + XMAX) / 2)
-#define Y_MAX_POSITIVE (((1 << ABS_POS_BITS) + YMAX) / 2)
+#define X_MAX_POSITIVE 8176
+#define Y_MAX_POSITIVE 8176
/*****************************************************************************
* Stuff we need even when we do not want native Synaptics support
@@ -604,11 +609,21 @@ static int synaptics_parse_hw_state(const unsigned char buf[],
hw->right = (buf[0] & 0x02) ? 1 : 0;
}
- /* Convert wrap-around values to negative */
+ /*
+ * Convert wrap-around values to negative. (X|Y)_MAX_POSITIVE
+ * is used by some firmware to indicate a finger at the edge of
+ * the touchpad whose precise position cannot be determined, so
+ * convert these values to the maximum axis value.
+ */
if (hw->x > X_MAX_POSITIVE)
hw->x -= 1 << ABS_POS_BITS;
+ else if (hw->x == X_MAX_POSITIVE)
+ hw->x = XMAX;
+
if (hw->y > Y_MAX_POSITIVE)
hw->y -= 1 << ABS_POS_BITS;
+ else if (hw->y == Y_MAX_POSITIVE)
+ hw->y = YMAX;
return 0;
}