W: http://blackfin.uclinux.org/
S: Supported
F: sound/soc/blackfin/*
-
+
ANALOG DEVICES INC IIO DRIVERS
M: Lars-Peter Clausen <lars@metafoo.de>
M: Michael Hennerich <Michael.Hennerich@analog.com>
F: drivers/staging/iio/*/ad*
F: staging/iio/trigger/iio-trig-bfin-timer.c
+ ANDROID DRIVERS
+ M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+ M: Arve Hjønnevåg <arve@android.com>
+ M: Riley Andrews <riandrews@android.com>
+ T: git git://git.kernel.org/pub/scm/linux/kernel/gregkh/staging.git
+ L: devel@driverdev.osuosl.org
+ S: Supported
+ F: drivers/android/
+ F: drivers/staging/android/
+
AOA (Apple Onboard Audio) ALSA DRIVER
M: Johannes Berg <johannes@sipsolutions.net>
L: linuxppc-dev@lists.ozlabs.org
S: Maintained
F: drivers/media/i2c/aptina-pll.*
- ARASAN COMPACT FLASH PATA CONTROLLER
- M: Viresh Kumar <viresh.linux@gmail.com>
- L: linux-ide@vger.kernel.org
- S: Maintained
- F: include/linux/pata_arasan_cf_data.h
- F: drivers/ata/pata_arasan_cf.c
-
ARC FRAMEBUFFER DRIVER
M: Jaya Kumar <jayalk@intworks.biz>
S: Maintained
M: Oliver Hartkopp <socketcan@hartkopp.net>
L: linux-can@vger.kernel.org
W: http://gitorious.org/linux-can
- T: git git://gitorious.org/linux-can/linux-can-next.git
+ T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can.git
+ T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git
S: Maintained
F: Documentation/networking/can.txt
F: net/can/
M: Marc Kleine-Budde <mkl@pengutronix.de>
L: linux-can@vger.kernel.org
W: http://gitorious.org/linux-can
- T: git git://gitorious.org/linux-can/linux-can-next.git
+ T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can.git
+ T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git
S: Maintained
F: drivers/net/can/
F: include/linux/can/dev.h
Q: https://patchwork.kernel.org/project/linux-dmaengine/list/
S: Maintained
F: drivers/dma/
- F: include/linux/dma*
+ F: include/linux/dmaengine.h
F: Documentation/dmaengine/
T: git git://git.infradead.org/users/vkoul/slave-dma.git
S: Maintained
F: drivers/tty/serial/dz.*
+E3X0 POWER BUTTON DRIVER
+M: Moritz Fischer <moritz.fischer@ettus.com>
+L: usrp-users@lists.ettus.com
+W: http://www.ettus.com
+S: Supported
+F: drivers/input/misc/e3x0-button.c
+F: Documentation/devicetree/bindings/input/e3x0-button.txt
+
E4000 MEDIA DRIVER
M: Antti Palosaari <crope@iki.fi>
L: linux-media@vger.kernel.org
F: drivers/scsi/ipr.*
IBM Power Virtual Ethernet Device Driver
- M: Santiago Leon <santil@linux.vnet.ibm.com>
+ M: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/ibm/ibmveth.*
IBM Power Virtual SCSI Device Drivers
- M: Nathan Fontenot <nfont@linux.vnet.ibm.com>
+ M: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
L: linux-scsi@vger.kernel.org
S: Supported
F: drivers/scsi/ibmvscsi/ibmvscsi*
F: drivers/scsi/ibmvscsi/viosrp.h
IBM Power Virtual FC Device Drivers
- M: Brian King <brking@linux.vnet.ibm.com>
+ M: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
L: linux-scsi@vger.kernel.org
S: Supported
F: drivers/scsi/ibmvscsi/ibmvfc*
INPUT (KEYBOARD, MOUSE, JOYSTICK, TOUCHSCREEN) DRIVERS
M: Dmitry Torokhov <dmitry.torokhov@gmail.com>
- M: Dmitry Torokhov <dtor@mail.ru>
L: linux-input@vger.kernel.org
Q: http://patchwork.kernel.org/project/linux-input/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git
F: drivers/input/input-mt.c
K: \b(ABS|SYN)_MT_
+ INTEL ASoC BDW/HSW DRIVERS
+ M: Jie Yang <yang.jie@linux.intel.com>
+ L: alsa-devel@alsa-project.org
+ S: Supported
+ F: sound/soc/intel/sst-haswell*
+ F: sound/soc/intel/sst-dsp*
+ F: sound/soc/intel/sst-firmware.c
+ F: sound/soc/intel/broadwell.c
+ F: sound/soc/intel/haswell.c
+
INTEL C600 SERIES SAS CONTROLLER DRIVER
M: Intel SCU Linux support <intel-linux-scu@intel.com>
M: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
- M: Dave Jiang <dave.jiang@intel.com>
L: linux-scsi@vger.kernel.org
T: git git://git.code.sf.net/p/intel-sas/isci
S: Supported
Q: http://patchwork.kernel.org/project/linux-rdma/list/
F: drivers/infiniband/ulp/iser/
+ ISCSI EXTENSIONS FOR RDMA (ISER) TARGET
+ M: Sagi Grimberg <sagig@mellanox.com>
+ T: git git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending.git master
+ L: linux-rdma@vger.kernel.org
+ L: target-devel@vger.kernel.org
+ S: Supported
+ W: http://www.linux-iscsi.org
+ F: drivers/infiniband/ulp/isert
+
ISDN SUBSYSTEM
M: Karsten Keil <isdn@linux-pingi.de>
L: isdn4linux@listserv.isdn4linux.de (subscribers-only)
F: include/linux/lguest*.h
F: tools/lguest/
+ LIBATA SUBSYSTEM (Serial and Parallel ATA drivers)
+ M: Tejun Heo <tj@kernel.org>
+ L: linux-ide@vger.kernel.org
+ T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
+ S: Maintained
+ F: drivers/ata/
+ F: include/linux/ata.h
+ F: include/linux/libata.h
+
+ LIBATA PATA ARASAN COMPACT FLASH CONTROLLER
+ M: Viresh Kumar <viresh.linux@gmail.com>
+ L: linux-ide@vger.kernel.org
+ T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
+ S: Maintained
+ F: include/linux/pata_arasan_cf_data.h
+ F: drivers/ata/pata_arasan_cf.c
+
+ LIBATA PATA DRIVERS
+ M: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
+ M: Tejun Heo <tj@kernel.org>
+ L: linux-ide@vger.kernel.org
+ T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
+ S: Maintained
+ F: drivers/ata/pata_*.c
+ F: drivers/ata/ata_generic.c
+
+ LIBATA SATA AHCI PLATFORM devices support
+ M: Hans de Goede <hdegoede@redhat.com>
+ M: Tejun Heo <tj@kernel.org>
+ L: linux-ide@vger.kernel.org
+ T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
+ S: Maintained
+ F: drivers/ata/ahci_platform.c
+ F: drivers/ata/libahci_platform.c
+ F: include/linux/ahci_platform.h
+
+ LIBATA SATA PROMISE TX2/TX4 CONTROLLER DRIVER
+ M: Mikael Pettersson <mikpelinux@gmail.com>
+ L: linux-ide@vger.kernel.org
+ T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
+ S: Maintained
+ F: drivers/ata/sata_promise.*
+
LIBLOCKDEP
M: Sasha Levin <sasha.levin@oracle.com>
S: Maintained
M: Grant Likely <grant.likely@linaro.org>
M: Rob Herring <robh+dt@kernel.org>
L: devicetree@vger.kernel.org
- W: http://fdt.secretlab.ca
- T: git git://git.secretlab.ca/git/linux-2.6.git
+ W: http://www.devicetree.org/
+ T: git git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux.git
S: Maintained
F: drivers/of/
F: include/linux/of*.h
F: scripts/dtc/
- K: of_get_property
- K: of_match_table
OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
M: Rob Herring <robh+dt@kernel.org>
F: drivers/pci/host/*layerscape*
PCI DRIVER FOR IMX6
- M: Richard Zhu <r65037@freescale.com>
+ M: Richard Zhu <Richard.Zhu@freescale.com>
M: Lucas Stach <l.stach@pengutronix.de>
L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
PIN CONTROL SUBSYSTEM
M: Linus Walleij <linus.walleij@linaro.org>
L: linux-gpio@vger.kernel.org
+ T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git
S: Maintained
F: drivers/pinctrl/
F: include/linux/pinctrl/
S: Obsolete
F: drivers/net/wireless/prism54/
- PROMISE SATA TX2/TX4 CONTROLLER LIBATA DRIVER
- M: Mikael Pettersson <mikpelinux@gmail.com>
- L: linux-ide@vger.kernel.org
- S: Maintained
- F: drivers/ata/sata_promise.*
-
PS3 NETWORK SUPPORT
M: Geoff Levand <geoff@infradead.org>
L: netdev@vger.kernel.org
F: drivers/scsi/qla2xxx/
QLOGIC QLA4XXX iSCSI DRIVER
- M: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
- M: iscsi-driver@qlogic.com
+ M: QLogic-Storage-Upstream@qlogic.com
L: linux-scsi@vger.kernel.org
S: Supported
F: Documentation/scsi/LICENSE.qla4xxx
F: drivers/misc/phantom.c
F: include/uapi/linux/phantom.h
- SERIAL ATA (SATA) SUBSYSTEM
- M: Tejun Heo <tj@kernel.org>
- L: linux-ide@vger.kernel.org
- T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
- S: Supported
- F: drivers/ata/
- F: include/linux/ata.h
- F: include/linux/libata.h
-
- SERIAL ATA AHCI PLATFORM devices support
- M: Hans de Goede <hdegoede@redhat.com>
- M: Tejun Heo <tj@kernel.org>
- L: linux-ide@vger.kernel.org
- T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
- S: Supported
- F: drivers/ata/ahci_platform.c
- F: drivers/ata/libahci_platform.c
- F: include/linux/ahci_platform.h
-
SERVER ENGINES 10Gbps iSCSI - BladeEngine 2 DRIVER
M: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
L: linux-scsi@vger.kernel.org
F: arch/m68k/include/asm/sun3*
F: drivers/net/ethernet/i825xx/sun3*
+SUN4I LOW RES ADC ATTACHED TABLET KEYS DRIVER
+M: Hans de Goede <hdegoede@redhat.com>
+L: linux-input@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/input/sun4i-lradc-keys.txt
+F: drivers/input/keyboard/sun4i-lradc-keys.c
+
SUNDANCE NETWORK DRIVER
M: Denis Kirjanov <kda@linux-powerpc.org>
L: netdev@vger.kernel.org
SUPERH
L: linux-sh@vger.kernel.org
- W: http://www.linux-sh.org
Q: http://patchwork.kernel.org/project/linux-sh/list/
S: Orphan
F: Documentation/sh/
TI BANDGAP AND THERMAL DRIVER
M: Eduardo Valentin <edubezval@gmail.com>
L: linux-pm@vger.kernel.org
- S: Supported
+ L: linux-omap@vger.kernel.org
+ S: Maintained
F: drivers/thermal/ti-soc-thermal/
TI CLOCK DRIVER
M: "Hans J. Koch" <hjk@hansjkoch.de>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
S: Maintained
+ T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
F: Documentation/DocBook/uio-howto.tmpl
F: drivers/uio/
F: include/linux/uio*.h
#define X_MAX_POSITIVE 8176
#define Y_MAX_POSITIVE 8176
+/* maximum ABS_MT_POSITION displacement (in mm) */
+#define DMAX 10
+
/*****************************************************************************
* Stuff we need even when we do not want native Synaptics support
****************************************************************************/
1232, 5710, 1156, 4696
},
{
- (const char * const []){"LEN0034", "LEN0036", "LEN0039",
- "LEN2002", "LEN2004", NULL},
+ (const char * const []){"LEN0034", "LEN0036", "LEN0037",
+ "LEN0039", "LEN2002", "LEN2004",
+ NULL},
1024, 5112, 2024, 4832
},
{
"LEN0034", /* T431s, L440, L540, T540, W540, X1 Carbon 2nd */
"LEN0035", /* X240 */
"LEN0036", /* T440 */
- "LEN0037",
+ "LEN0037", /* X1 Carbon 2nd */
"LEN0038",
"LEN0039", /* T440s */
"LEN0041",
* Functions to interpret the absolute mode packets
****************************************************************************/
-static void synaptics_mt_state_set(struct synaptics_mt_state *state, int count,
- int sgm, int agm)
-{
- state->count = count;
- state->sgm = sgm;
- state->agm = agm;
-}
-
static void synaptics_parse_agm(const unsigned char buf[],
struct synaptics_data *priv,
struct synaptics_hw_state *hw)
break;
case 2:
- /* AGM-CONTACT packet: (count, sgm, agm) */
- synaptics_mt_state_set(&agm->mt_state, buf[1], buf[2], buf[4]);
+ /* AGM-CONTACT packet: we are only interested in the count */
+ priv->agm_count = buf[1];
break;
default:
break;
}
-
- /* Record that at least one AGM has been received since last SGM */
- priv->agm_pending = true;
}
static bool is_forcepad;
input_report_key(dev, BTN_0 + i, hw->ext_buttons & (1 << i));
}
-static void synaptics_report_slot(struct input_dev *dev, int slot,
- const struct synaptics_hw_state *hw)
-{
- input_mt_slot(dev, slot);
- input_mt_report_slot_state(dev, MT_TOOL_FINGER, (hw != NULL));
- if (!hw)
- return;
-
- input_report_abs(dev, ABS_MT_POSITION_X, hw->x);
- input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(hw->y));
- input_report_abs(dev, ABS_MT_PRESSURE, hw->z);
-}
-
static void synaptics_report_mt_data(struct psmouse *psmouse,
- struct synaptics_mt_state *mt_state,
- const struct synaptics_hw_state *sgm)
+ const struct synaptics_hw_state *sgm,
+ int num_fingers)
{
struct input_dev *dev = psmouse->dev;
struct synaptics_data *priv = psmouse->private;
- struct synaptics_hw_state *agm = &priv->agm;
- struct synaptics_mt_state *old = &priv->mt_state;
+ const struct synaptics_hw_state *hw[2] = { sgm, &priv->agm };
+ struct input_mt_pos pos[2];
+ int slot[2], nsemi, i;
- switch (mt_state->count) {
- case 0:
- synaptics_report_slot(dev, 0, NULL);
- synaptics_report_slot(dev, 1, NULL);
- break;
- case 1:
- if (mt_state->sgm == -1) {
- synaptics_report_slot(dev, 0, NULL);
- synaptics_report_slot(dev, 1, NULL);
- } else if (mt_state->sgm == 0) {
- synaptics_report_slot(dev, 0, sgm);
- synaptics_report_slot(dev, 1, NULL);
- } else {
- synaptics_report_slot(dev, 0, NULL);
- synaptics_report_slot(dev, 1, sgm);
- }
- break;
- default:
- /*
- * If the finger slot contained in SGM is valid, and either
- * hasn't changed, or is new, or the old SGM has now moved to
- * AGM, then report SGM in MTB slot 0.
- * Otherwise, empty MTB slot 0.
- */
- if (mt_state->sgm != -1 &&
- (mt_state->sgm == old->sgm ||
- old->sgm == -1 || mt_state->agm == old->sgm))
- synaptics_report_slot(dev, 0, sgm);
- else
- synaptics_report_slot(dev, 0, NULL);
+ nsemi = clamp_val(num_fingers, 0, 2);
- /*
- * If the finger slot contained in AGM is valid, and either
- * hasn't changed, or is new, then report AGM in MTB slot 1.
- * Otherwise, empty MTB slot 1.
- *
- * However, in the case where the AGM is new, make sure that
- * that it is either the same as the old SGM, or there was no
- * SGM.
- *
- * Otherwise, if the SGM was just 1, and the new AGM is 2, then
- * the new AGM will keep the old SGM's tracking ID, which can
- * cause apparent drumroll. This happens if in the following
- * valid finger sequence:
- *
- * Action SGM AGM (MTB slot:Contact)
- * 1. Touch contact 0 (0:0)
- * 2. Touch contact 1 (0:0, 1:1)
- * 3. Lift contact 0 (1:1)
- * 4. Touch contacts 2,3 (0:2, 1:3)
- *
- * In step 4, contact 3, in AGM must not be given the same
- * tracking ID as contact 1 had in step 3. To avoid this,
- * the first agm with contact 3 is dropped and slot 1 is
- * invalidated (tracking ID = -1).
- */
- if (mt_state->agm != -1 &&
- (mt_state->agm == old->agm ||
- (old->agm == -1 &&
- (old->sgm == -1 || mt_state->agm == old->sgm))))
- synaptics_report_slot(dev, 1, agm);
- else
- synaptics_report_slot(dev, 1, NULL);
- break;
+ for (i = 0; i < nsemi; i++) {
+ pos[i].x = hw[i]->x;
+ pos[i].y = synaptics_invert_y(hw[i]->y);
}
+ input_mt_assign_slots(dev, slot, pos, nsemi, DMAX * priv->x_res);
+
+ for (i = 0; i < nsemi; i++) {
+ input_mt_slot(dev, slot[i]);
+ input_mt_report_slot_state(dev, MT_TOOL_FINGER, true);
+ input_report_abs(dev, ABS_MT_POSITION_X, pos[i].x);
+ input_report_abs(dev, ABS_MT_POSITION_Y, pos[i].y);
+ input_report_abs(dev, ABS_MT_PRESSURE, hw[i]->z);
+ }
+
+ input_mt_drop_unused(dev);
+
/* Don't use active slot count to generate BTN_TOOL events. */
input_mt_report_pointer_emulation(dev, false);
/* Send the number of fingers reported by touchpad itself. */
- input_mt_report_finger_count(dev, mt_state->count);
+ input_mt_report_finger_count(dev, num_fingers);
synaptics_report_buttons(psmouse, sgm);
input_sync(dev);
}
-/* Handle case where mt_state->count = 0 */
-static void synaptics_image_sensor_0f(struct synaptics_data *priv,
- struct synaptics_mt_state *mt_state)
-{
- synaptics_mt_state_set(mt_state, 0, -1, -1);
- priv->mt_state_lost = false;
-}
-
-/* Handle case where mt_state->count = 1 */
-static void synaptics_image_sensor_1f(struct synaptics_data *priv,
- struct synaptics_mt_state *mt_state)
-{
- struct synaptics_hw_state *agm = &priv->agm;
- struct synaptics_mt_state *old = &priv->mt_state;
-
- /*
- * If the last AGM was (0,0,0), and there is only one finger left,
- * then we absolutely know that SGM contains slot 0, and all other
- * fingers have been removed.
- */
- if (priv->agm_pending && agm->z == 0) {
- synaptics_mt_state_set(mt_state, 1, 0, -1);
- priv->mt_state_lost = false;
- return;
- }
-
- switch (old->count) {
- case 0:
- synaptics_mt_state_set(mt_state, 1, 0, -1);
- break;
- case 1:
- /*
- * If mt_state_lost, then the previous transition was 3->1,
- * and SGM now contains either slot 0 or 1, but we don't know
- * which. So, we just assume that the SGM now contains slot 1.
- *
- * If pending AGM and either:
- * (a) the previous SGM slot contains slot 0, or
- * (b) there was no SGM slot
- * then, the SGM now contains slot 1
- *
- * Case (a) happens with very rapid "drum roll" gestures, where
- * slot 0 finger is lifted and a new slot 1 finger touches
- * within one reporting interval.
- *
- * Case (b) happens if initially two or more fingers tap
- * briefly, and all but one lift before the end of the first
- * reporting interval.
- *
- * (In both these cases, slot 0 will becomes empty, so SGM
- * contains slot 1 with the new finger)
- *
- * Else, if there was no previous SGM, it now contains slot 0.
- *
- * Otherwise, SGM still contains the same slot.
- */
- if (priv->mt_state_lost ||
- (priv->agm_pending && old->sgm <= 0))
- synaptics_mt_state_set(mt_state, 1, 1, -1);
- else if (old->sgm == -1)
- synaptics_mt_state_set(mt_state, 1, 0, -1);
- break;
- case 2:
- /*
- * If mt_state_lost, we don't know which finger SGM contains.
- *
- * So, report 1 finger, but with both slots empty.
- * We will use slot 1 on subsequent 1->1
- */
- if (priv->mt_state_lost) {
- synaptics_mt_state_set(mt_state, 1, -1, -1);
- break;
- }
- /*
- * Since the last AGM was NOT (0,0,0), it was the finger in
- * slot 0 that has been removed.
- * So, SGM now contains previous AGM's slot, and AGM is now
- * empty.
- */
- synaptics_mt_state_set(mt_state, 1, old->agm, -1);
- break;
- case 3:
- /*
- * Since last AGM was not (0,0,0), we don't know which finger
- * is left.
- *
- * So, report 1 finger, but with both slots empty.
- * We will use slot 1 on subsequent 1->1
- */
- synaptics_mt_state_set(mt_state, 1, -1, -1);
- priv->mt_state_lost = true;
- break;
- case 4:
- case 5:
- /* mt_state was updated by AGM-CONTACT packet */
- break;
- }
-}
-
-/* Handle case where mt_state->count = 2 */
-static void synaptics_image_sensor_2f(struct synaptics_data *priv,
- struct synaptics_mt_state *mt_state)
-{
- struct synaptics_mt_state *old = &priv->mt_state;
-
- switch (old->count) {
- case 0:
- synaptics_mt_state_set(mt_state, 2, 0, 1);
- break;
- case 1:
- /*
- * If previous SGM contained slot 1 or higher, SGM now contains
- * slot 0 (the newly touching finger) and AGM contains SGM's
- * previous slot.
- *
- * Otherwise, SGM still contains slot 0 and AGM now contains
- * slot 1.
- */
- if (old->sgm >= 1)
- synaptics_mt_state_set(mt_state, 2, 0, old->sgm);
- else
- synaptics_mt_state_set(mt_state, 2, 0, 1);
- break;
- case 2:
- /*
- * If mt_state_lost, SGM now contains either finger 1 or 2, but
- * we don't know which.
- * So, we just assume that the SGM contains slot 0 and AGM 1.
- */
- if (priv->mt_state_lost)
- synaptics_mt_state_set(mt_state, 2, 0, 1);
- /*
- * Otherwise, use the same mt_state, since it either hasn't
- * changed, or was updated by a recently received AGM-CONTACT
- * packet.
- */
- break;
- case 3:
- /*
- * 3->2 transitions have two unsolvable problems:
- * 1) no indication is given which finger was removed
- * 2) no way to tell if agm packet was for finger 3
- * before 3->2, or finger 2 after 3->2.
- *
- * So, report 2 fingers, but empty all slots.
- * We will guess slots [0,1] on subsequent 2->2.
- */
- synaptics_mt_state_set(mt_state, 2, -1, -1);
- priv->mt_state_lost = true;
- break;
- case 4:
- case 5:
- /* mt_state was updated by AGM-CONTACT packet */
- break;
- }
-}
-
-/* Handle case where mt_state->count = 3 */
-static void synaptics_image_sensor_3f(struct synaptics_data *priv,
- struct synaptics_mt_state *mt_state)
-{
- struct synaptics_mt_state *old = &priv->mt_state;
-
- switch (old->count) {
- case 0:
- synaptics_mt_state_set(mt_state, 3, 0, 2);
- break;
- case 1:
- /*
- * If previous SGM contained slot 2 or higher, SGM now contains
- * slot 0 (one of the newly touching fingers) and AGM contains
- * SGM's previous slot.
- *
- * Otherwise, SGM now contains slot 0 and AGM contains slot 2.
- */
- if (old->sgm >= 2)
- synaptics_mt_state_set(mt_state, 3, 0, old->sgm);
- else
- synaptics_mt_state_set(mt_state, 3, 0, 2);
- break;
- case 2:
- /*
- * If the AGM previously contained slot 3 or higher, then the
- * newly touching finger is in the lowest available slot.
- *
- * If SGM was previously 1 or higher, then the new SGM is
- * now slot 0 (with a new finger), otherwise, the new finger
- * is now in a hidden slot between 0 and AGM's slot.
- *
- * In all such cases, the SGM now contains slot 0, and the AGM
- * continues to contain the same slot as before.
- */
- if (old->agm >= 3) {
- synaptics_mt_state_set(mt_state, 3, 0, old->agm);
- break;
- }
-
- /*
- * After some 3->1 and all 3->2 transitions, we lose track
- * of which slot is reported by SGM and AGM.
- *
- * For 2->3 in this state, report 3 fingers, but empty all
- * slots, and we will guess (0,2) on a subsequent 0->3.
- *
- * To userspace, the resulting transition will look like:
- * 2:[0,1] -> 3:[-1,-1] -> 3:[0,2]
- */
- if (priv->mt_state_lost) {
- synaptics_mt_state_set(mt_state, 3, -1, -1);
- break;
- }
-
- /*
- * If the (SGM,AGM) really previously contained slots (0, 1),
- * then we cannot know what slot was just reported by the AGM,
- * because the 2->3 transition can occur either before or after
- * the AGM packet. Thus, this most recent AGM could contain
- * either the same old slot 1 or the new slot 2.
- * Subsequent AGMs will be reporting slot 2.
- *
- * To userspace, the resulting transition will look like:
- * 2:[0,1] -> 3:[0,-1] -> 3:[0,2]
- */
- synaptics_mt_state_set(mt_state, 3, 0, -1);
- break;
- case 3:
- /*
- * If, for whatever reason, the previous agm was invalid,
- * Assume SGM now contains slot 0, AGM now contains slot 2.
- */
- if (old->agm <= 2)
- synaptics_mt_state_set(mt_state, 3, 0, 2);
- /*
- * mt_state either hasn't changed, or was updated by a recently
- * received AGM-CONTACT packet.
- */
- break;
-
- case 4:
- case 5:
- /* mt_state was updated by AGM-CONTACT packet */
- break;
- }
-}
-
-/* Handle case where mt_state->count = 4, or = 5 */
-static void synaptics_image_sensor_45f(struct synaptics_data *priv,
- struct synaptics_mt_state *mt_state)
-{
- /* mt_state was updated correctly by AGM-CONTACT packet */
- priv->mt_state_lost = false;
-}
-
static void synaptics_image_sensor_process(struct psmouse *psmouse,
struct synaptics_hw_state *sgm)
{
struct synaptics_data *priv = psmouse->private;
- struct synaptics_hw_state *agm = &priv->agm;
- struct synaptics_mt_state mt_state;
-
- /* Initialize using current mt_state (as updated by last agm) */
- mt_state = agm->mt_state;
+ int num_fingers;
/*
* Update mt_state using the new finger count and current mt_state.
*/
if (sgm->z == 0)
- synaptics_image_sensor_0f(priv, &mt_state);
+ num_fingers = 0;
else if (sgm->w >= 4)
- synaptics_image_sensor_1f(priv, &mt_state);
+ num_fingers = 1;
else if (sgm->w == 0)
- synaptics_image_sensor_2f(priv, &mt_state);
- else if (sgm->w == 1 && mt_state.count <= 3)
- synaptics_image_sensor_3f(priv, &mt_state);
+ num_fingers = 2;
+ else if (sgm->w == 1)
+ num_fingers = priv->agm_count ? priv->agm_count : 3;
else
- synaptics_image_sensor_45f(priv, &mt_state);
+ num_fingers = 4;
/* Send resulting input events to user space */
- synaptics_report_mt_data(psmouse, &mt_state, sgm);
-
- /* Store updated mt_state */
- priv->mt_state = agm->mt_state = mt_state;
- priv->agm_pending = false;
-}
-
-static void synaptics_profile_sensor_process(struct psmouse *psmouse,
- struct synaptics_hw_state *sgm,
- int num_fingers)
-{
- struct input_dev *dev = psmouse->dev;
- struct synaptics_data *priv = psmouse->private;
- struct synaptics_hw_state *hw[2] = { sgm, &priv->agm };
- struct input_mt_pos pos[2];
- int slot[2], nsemi, i;
-
- nsemi = clamp_val(num_fingers, 0, 2);
-
- for (i = 0; i < nsemi; i++) {
- pos[i].x = hw[i]->x;
- pos[i].y = synaptics_invert_y(hw[i]->y);
- }
-
- input_mt_assign_slots(dev, slot, pos, nsemi);
-
- for (i = 0; i < nsemi; i++) {
- input_mt_slot(dev, slot[i]);
- input_mt_report_slot_state(dev, MT_TOOL_FINGER, true);
- input_report_abs(dev, ABS_MT_POSITION_X, pos[i].x);
- input_report_abs(dev, ABS_MT_POSITION_Y, pos[i].y);
- input_report_abs(dev, ABS_MT_PRESSURE, hw[i]->z);
- }
-
- input_mt_drop_unused(dev);
- input_mt_report_pointer_emulation(dev, false);
- input_mt_report_finger_count(dev, num_fingers);
-
- synaptics_report_buttons(psmouse, sgm);
-
- input_sync(dev);
+ synaptics_report_mt_data(psmouse, sgm, num_fingers);
}
/*
}
if (cr48_profile_sensor) {
- synaptics_profile_sensor_process(psmouse, &hw, num_fingers);
+ synaptics_report_mt_data(psmouse, &hw, num_fingers);
return;
}
ABS_MT_POSITION_Y);
/* Image sensors can report per-contact pressure */
input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
- input_mt_init_slots(dev, 2, INPUT_MT_POINTER);
+ input_mt_init_slots(dev, 2, INPUT_MT_POINTER | INPUT_MT_TRACK);
/* Image sensors can signal 4 and 5 finger clicks */
__set_bit(BTN_TOOL_QUADTAP, dev->keybit);
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