Note that the device never signals overflow condition.
+For protocol version 2 devices when the trackpoint is used, and no fingers
+are on the touchpad, the M R L bits signal the combined status of both the
+pointingstick and touchpad buttons.
+
ALPS Absolute Mode - Protocol Version 1
--------------------------------------
ALPS Absolute Mode - Protocol Version 2
---------------------------------------
- byte 0: 1 ? ? ? 1 ? ? ?
+ byte 0: 1 ? ? ? 1 PSM PSR PSL
byte 1: 0 x6 x5 x4 x3 x2 x1 x0
byte 2: 0 x10 x9 x8 x7 ? fin ges
byte 3: 0 y9 y8 y7 1 M R L
byte 5: 0 z6 z5 z4 z3 z2 z1 z0
Protocol Version 2 DualPoint devices send standard PS/2 mouse packets for
-the DualPoint Stick.
+the DualPoint Stick. For non interleaved dualpoint devices the pointingstick
+buttons get reported separately in the PSM, PSR and PSL bits.
Dualpoint device -- interleaved packet format
---------------------------------------------
S: Maintained
F: drivers/misc/vmw_balloon.c
+VMWARE VMMOUSE SUBDRIVER
+M: "VMware Graphics" <linux-graphics-maintainer@vmware.com>
+M: "VMware, Inc." <pv-drivers@vmware.com>
+L: linux-input@vger.kernel.org
+S: Maintained
+F: drivers/input/mouse/vmmouse.c
+F: drivers/input/mouse/vmmouse.h
+
VMWARE VMXNET3 ETHERNET DRIVER
M: Shreyas Bhatewara <sbhatewara@vmware.com>
M: "VMware, Inc." <pv-drivers@vmware.com>
/* #define DEBUG */
-#define pr_fmt(fmt) KBUILD_BASENAME ": " fmt
-
#include <linux/input.h>
#include <linux/module.h>
#include <linux/mutex.h>
if (effect->type < FF_EFFECT_MIN || effect->type > FF_EFFECT_MAX ||
!test_bit(effect->type, dev->ffbit)) {
- pr_debug("invalid or not supported effect type in upload\n");
+ dev_dbg(&dev->dev, "invalid or not supported effect type in upload\n");
return -EINVAL;
}
(effect->u.periodic.waveform < FF_WAVEFORM_MIN ||
effect->u.periodic.waveform > FF_WAVEFORM_MAX ||
!test_bit(effect->u.periodic.waveform, dev->ffbit))) {
- pr_debug("invalid or not supported wave form in upload\n");
+ dev_dbg(&dev->dev, "invalid or not supported wave form in upload\n");
return -EINVAL;
}
struct ff_device *ff = dev->ff;
int i;
- pr_debug("flushing now\n");
+ dev_dbg(&dev->dev, "flushing now\n");
mutex_lock(&ff->mutex);
int i;
if (!max_effects) {
- pr_err("cannot allocate device without any effects\n");
+ dev_err(&dev->dev, "cannot allocate device without any effects\n");
return -EINVAL;
}
* - the iForce driver drivers/char/joystick/iforce.c
* - the skeleton-driver drivers/usb/usb-skeleton.c
* - Xbox 360 information http://www.free60.org/wiki/Gamepad
+ * - Xbox One information https://github.com/quantus/xbox-one-controller-protocol
*
* Thanks to:
* - ITO Takayuki for providing essential xpad information on his website
* - Vojtech Pavlik - iforce driver / input subsystem
* - Greg Kroah-Hartman - usb-skeleton driver
* - XBOX Linux project - extra USB id's
+ * - Pekka Pöyry (quantus) - Xbox One controller reverse engineering
*
* TODO:
* - fine tune axes (especially trigger axes)
return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
+ case XTYPE_XBOXONE:
+ xpad->odata[0] = 0x09; /* activate rumble */
+ xpad->odata[1] = 0x08;
+ xpad->odata[2] = 0x00;
+ xpad->odata[3] = 0x08; /* continuous effect */
+ xpad->odata[4] = 0x00; /* simple rumble mode */
+ xpad->odata[5] = 0x03; /* L and R actuator only */
+ xpad->odata[6] = 0x00; /* TODO: LT actuator */
+ xpad->odata[7] = 0x00; /* TODO: RT actuator */
+ xpad->odata[8] = strong / 256; /* left actuator */
+ xpad->odata[9] = weak / 256; /* right actuator */
+ xpad->odata[10] = 0x80; /* length of pulse */
+ xpad->odata[11] = 0x00; /* stop period of pulse */
+ xpad->irq_out->transfer_buffer_length = 12;
+
+ return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
+
default:
dev_dbg(&xpad->dev->dev,
"%s - rumble command sent to unsupported xpad type: %d\n",
static int xpad_init_ff(struct usb_xpad *xpad)
{
- if (xpad->xtype == XTYPE_UNKNOWN || xpad->xtype == XTYPE_XBOXONE)
+ if (xpad->xtype == XTYPE_UNKNOWN)
return 0;
input_set_capability(xpad->dev, EV_FF, FF_RUMBLE);
/*
* LM8333 keypad driver
- * Copyright (C) 2012 Wolfram Sang, Pengutronix <w.sang@pengutronix.de>
+ * Copyright (C) 2012 Wolfram Sang, Pengutronix <kernel@pengutronix.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
};
module_i2c_driver(lm8333_driver);
-MODULE_AUTHOR("Wolfram Sang <w.sang@pengutronix.de>");
+MODULE_AUTHOR("Wolfram Sang <kernel@pengutronix.de>");
MODULE_DESCRIPTION("LM8333 keyboard driver");
MODULE_LICENSE("GPL v2");
If unsure, say Y.
+config MOUSE_PS2_VMMOUSE
+ bool "Virtual mouse (vmmouse)"
+ depends on MOUSE_PS2 && X86 && HYPERVISOR_GUEST
+ help
+ Say Y here if you are running under control of VMware hypervisor
+ (ESXi, Workstation or Fusion). Also make sure that when you enable
+ this option, you remove the xf86-input-vmmouse user-space driver
+ or upgrade it to at least xf86-input-vmmouse 13.0.1, which doesn't
+ load in the presence of an in-kernel vmmouse driver.
+
+ If unsure, say N.
+
config MOUSE_SERIAL
tristate "Serial mouse"
select SERIO
psmouse-$(CONFIG_MOUSE_PS2_TRACKPOINT) += trackpoint.o
psmouse-$(CONFIG_MOUSE_PS2_TOUCHKIT) += touchkit_ps2.o
psmouse-$(CONFIG_MOUSE_PS2_CYPRESS) += cypress_ps2.o
+psmouse-$(CONFIG_MOUSE_PS2_VMMOUSE) += vmmouse.o
elan_i2c-objs := elan_i2c_core.o
elan_i2c-$(CONFIG_MOUSE_ELAN_I2C_I2C) += elan_i2c_i2c.o
} else if (sysfs_streq(buf, OFF_MODE_NAME)) {
cyapa->suspend_power_mode = PWR_MODE_OFF;
} else if (!kstrtou16(buf, 10, &sleep_time)) {
- cyapa->suspend_sleep_time = max_t(u16, sleep_time, 1000);
+ cyapa->suspend_sleep_time = min_t(u16, sleep_time, 1000);
cyapa->suspend_power_mode =
cyapa_sleep_time_to_pwr_cmd(cyapa->suspend_sleep_time);
} else {
if (error)
return error;
- cyapa->runtime_suspend_sleep_time = max_t(u16, time, 1000);
+ cyapa->runtime_suspend_sleep_time = min_t(u16, time, 1000);
cyapa->runtime_suspend_power_mode =
cyapa_sleep_time_to_pwr_cmd(cyapa->runtime_suspend_sleep_time);
#define ETP_ENABLE_CALIBRATE 0x0002
#define ETP_DISABLE_CALIBRATE 0x0000
#define ETP_DISABLE_POWER 0x0001
+#define ETP_PRESSURE_OFFSET 25
/* IAP Firmware handling */
#define ETP_FW_NAME "elan_i2c.bin"
struct completion *reset_done);
int (*get_report)(struct i2c_client *client, u8 *report);
+ int (*get_pressure_adjustment)(struct i2c_client *client,
+ int *adjustment);
};
extern const struct elan_transport_ops elan_smbus_ops, elan_i2c_ops;
* Copyright (c) 2013 ELAN Microelectronics Corp.
*
* Author: ćž—ć”żç¶ (Duson Lin) <dusonlin@emc.com.tw>
- * Version: 1.5.6
+ * Version: 1.5.7
*
* Based on cyapa driver:
* copyright (c) 2011-2012 Cypress Semiconductor, Inc.
#include "elan_i2c.h"
#define DRIVER_NAME "elan_i2c"
-#define ELAN_DRIVER_VERSION "1.5.6"
-#define ETP_PRESSURE_OFFSET 25
+#define ELAN_DRIVER_VERSION "1.5.7"
#define ETP_MAX_PRESSURE 255
#define ETP_FWIDTH_REDUCE 90
#define ETP_FINGER_WIDTH 15
#define ETP_REPORT_ID_OFFSET 2
#define ETP_TOUCH_INFO_OFFSET 3
#define ETP_FINGER_DATA_OFFSET 4
+#define ETP_HOVER_INFO_OFFSET 30
#define ETP_MAX_REPORT_LEN 34
/* The main device structure */
u8 sm_version;
u8 iap_version;
u16 fw_checksum;
-
+ int pressure_adjustment;
u8 mode;
bool irq_wake;
if (error)
return error;
+ error = data->ops->get_pressure_adjustment(data->client,
+ &data->pressure_adjustment);
+ if (error)
+ return error;
+
return 0;
}
*/
static void elan_report_contact(struct elan_tp_data *data,
int contact_num, bool contact_valid,
- u8 *finger_data)
+ bool hover_event, u8 *finger_data)
{
struct input_dev *input = data->input;
unsigned int pos_x, pos_y;
unsigned int pressure, mk_x, mk_y;
- unsigned int area_x, area_y, major, minor, new_pressure;
-
+ unsigned int area_x, area_y, major, minor;
+ unsigned int scaled_pressure;
if (contact_valid) {
pos_x = ((finger_data[0] & 0xf0) << 4) |
major = max(area_x, area_y);
minor = min(area_x, area_y);
- new_pressure = pressure + ETP_PRESSURE_OFFSET;
- if (new_pressure > ETP_MAX_PRESSURE)
- new_pressure = ETP_MAX_PRESSURE;
+ scaled_pressure = pressure + data->pressure_adjustment;
+
+ if (scaled_pressure > ETP_MAX_PRESSURE)
+ scaled_pressure = ETP_MAX_PRESSURE;
input_mt_slot(input, contact_num);
input_mt_report_slot_state(input, MT_TOOL_FINGER, true);
input_report_abs(input, ABS_MT_POSITION_X, pos_x);
input_report_abs(input, ABS_MT_POSITION_Y, data->max_y - pos_y);
- input_report_abs(input, ABS_MT_PRESSURE, new_pressure);
+ input_report_abs(input, ABS_MT_DISTANCE, hover_event);
+ input_report_abs(input, ABS_MT_PRESSURE,
+ hover_event ? 0 : scaled_pressure);
input_report_abs(input, ABS_TOOL_WIDTH, mk_x);
input_report_abs(input, ABS_MT_TOUCH_MAJOR, major);
input_report_abs(input, ABS_MT_TOUCH_MINOR, minor);
u8 *finger_data = &packet[ETP_FINGER_DATA_OFFSET];
int i;
u8 tp_info = packet[ETP_TOUCH_INFO_OFFSET];
- bool contact_valid;
+ u8 hover_info = packet[ETP_HOVER_INFO_OFFSET];
+ bool contact_valid, hover_event;
+ hover_event = hover_info & 0x40;
for (i = 0; i < ETP_MAX_FINGERS; i++) {
contact_valid = tp_info & (1U << (3 + i));
- elan_report_contact(data, i, contact_valid, finger_data);
+ elan_report_contact(data, i, contact_valid, hover_event,
+ finger_data);
if (contact_valid)
finger_data += ETP_FINGER_DATA_LEN;
ETP_FINGER_WIDTH * max_width, 0, 0);
input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0,
ETP_FINGER_WIDTH * min_width, 0, 0);
+ input_set_abs_params(input, ABS_MT_DISTANCE, 0, 1, 0, 0);
data->input = input;
#define ETP_I2C_MAX_X_AXIS_CMD 0x0106
#define ETP_I2C_MAX_Y_AXIS_CMD 0x0107
#define ETP_I2C_RESOLUTION_CMD 0x0108
+#define ETP_I2C_PRESSURE_CMD 0x010A
#define ETP_I2C_IAP_VERSION_CMD 0x0110
#define ETP_I2C_SET_CMD 0x0300
#define ETP_I2C_POWER_CMD 0x0307
return error;
}
- *x_traces = val[0] - 1;
- *y_traces = val[1] - 1;
+ *x_traces = val[0];
+ *y_traces = val[1];
+
+ return 0;
+}
+
+static int elan_i2c_get_pressure_adjustment(struct i2c_client *client,
+ int *adjustment)
+{
+ int error;
+ u8 val[3];
+
+ error = elan_i2c_read_cmd(client, ETP_I2C_PRESSURE_CMD, val);
+ if (error) {
+ dev_err(&client->dev, "failed to get pressure format: %d\n",
+ error);
+ return error;
+ }
+
+ if ((val[0] >> 4) & 0x1)
+ *adjustment = 0;
+ else
+ *adjustment = ETP_PRESSURE_OFFSET;
return 0;
}
.get_sm_version = elan_i2c_get_sm_version,
.get_product_id = elan_i2c_get_product_id,
.get_checksum = elan_i2c_get_checksum,
+ .get_pressure_adjustment = elan_i2c_get_pressure_adjustment,
.get_max = elan_i2c_get_max,
.get_resolution = elan_i2c_get_resolution,
return error;
}
- *x_traces = val[1] - 1;
- *y_traces = val[2] - 1;
+ *x_traces = val[1];
+ *y_traces = val[2];
return 0;
}
+static int elan_smbus_get_pressure_adjustment(struct i2c_client *client,
+ int *adjustment)
+{
+ *adjustment = ETP_PRESSURE_OFFSET;
+ return 0;
+}
+
static int elan_smbus_iap_get_mode(struct i2c_client *client,
enum tp_mode *mode)
{
.get_sm_version = elan_smbus_get_sm_version,
.get_product_id = elan_smbus_get_product_id,
.get_checksum = elan_smbus_get_checksum,
+ .get_pressure_adjustment = elan_smbus_get_pressure_adjustment,
.get_max = elan_smbus_get_max,
.get_resolution = elan_smbus_get_resolution,
#include "sentelic.h"
#include "cypress_ps2.h"
#include "focaltech.h"
+#include "vmmouse.h"
#define DRIVER_DESC "PS/2 mouse driver"
}
}
+ if (psmouse_do_detect(vmmouse_detect, psmouse, set_properties) == 0) {
+ if (max_proto > PSMOUSE_IMEX) {
+ if (!set_properties || vmmouse_init(psmouse) == 0)
+ return PSMOUSE_VMMOUSE;
+ }
+ }
+
/*
* Try Kensington ThinkingMouse (we try first, because synaptics probe
* upsets the thinkingmouse).
.detect = focaltech_detect,
.init = focaltech_init,
},
+#endif
+#ifdef CONFIG_MOUSE_PS2_VMMOUSE
+ {
+ .type = PSMOUSE_VMMOUSE,
+ .name = VMMOUSE_PSNAME,
+ .alias = "vmmouse",
+ .detect = vmmouse_detect,
+ .init = vmmouse_init,
+ },
#endif
{
.type = PSMOUSE_AUTO,
PSMOUSE_SYNAPTICS_RELATIVE,
PSMOUSE_CYPRESS,
PSMOUSE_FOCALTECH,
+ PSMOUSE_VMMOUSE,
PSMOUSE_AUTO /* This one should always be last */
};
--- /dev/null
+/*
+ * Driver for Virtual PS/2 Mouse on VMware and QEMU hypervisors.
+ *
+ * Copyright (C) 2014, VMware, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * Twin device code is hugely inspired by the ALPS driver.
+ * Authors:
+ * Dmitry Torokhov <dmitry.torokhov@gmail.com>
+ * Thomas Hellstrom <thellstrom@vmware.com>
+ */
+
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/libps2.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <asm/hypervisor.h>
+
+#include "psmouse.h"
+#include "vmmouse.h"
+
+#define VMMOUSE_PROTO_MAGIC 0x564D5868U
+#define VMMOUSE_PROTO_PORT 0x5658
+
+/*
+ * Main commands supported by the vmmouse hypervisor port.
+ */
+#define VMMOUSE_PROTO_CMD_GETVERSION 10
+#define VMMOUSE_PROTO_CMD_ABSPOINTER_DATA 39
+#define VMMOUSE_PROTO_CMD_ABSPOINTER_STATUS 40
+#define VMMOUSE_PROTO_CMD_ABSPOINTER_COMMAND 41
+#define VMMOUSE_PROTO_CMD_ABSPOINTER_RESTRICT 86
+
+/*
+ * Subcommands for VMMOUSE_PROTO_CMD_ABSPOINTER_COMMAND
+ */
+#define VMMOUSE_CMD_ENABLE 0x45414552U
+#define VMMOUSE_CMD_DISABLE 0x000000f5U
+#define VMMOUSE_CMD_REQUEST_RELATIVE 0x4c455252U
+#define VMMOUSE_CMD_REQUEST_ABSOLUTE 0x53424152U
+
+#define VMMOUSE_ERROR 0xffff0000U
+
+#define VMMOUSE_VERSION_ID 0x3442554aU
+
+#define VMMOUSE_RELATIVE_PACKET 0x00010000U
+
+#define VMMOUSE_LEFT_BUTTON 0x20
+#define VMMOUSE_RIGHT_BUTTON 0x10
+#define VMMOUSE_MIDDLE_BUTTON 0x08
+
+/*
+ * VMMouse Restrict command
+ */
+#define VMMOUSE_RESTRICT_ANY 0x00
+#define VMMOUSE_RESTRICT_CPL0 0x01
+#define VMMOUSE_RESTRICT_IOPL 0x02
+
+#define VMMOUSE_MAX_X 0xFFFF
+#define VMMOUSE_MAX_Y 0xFFFF
+
+#define VMMOUSE_VENDOR "VMware"
+#define VMMOUSE_NAME "VMMouse"
+
+/**
+ * struct vmmouse_data - private data structure for the vmmouse driver
+ *
+ * @abs_dev: "Absolute" device used to report absolute mouse movement.
+ * @phys: Physical path for the absolute device.
+ * @dev_name: Name attribute name for the absolute device.
+ */
+struct vmmouse_data {
+ struct input_dev *abs_dev;
+ char phys[32];
+ char dev_name[128];
+};
+
+/**
+ * Hypervisor-specific bi-directional communication channel
+ * implementing the vmmouse protocol. Should never execute on
+ * bare metal hardware.
+ */
+#define VMMOUSE_CMD(cmd, in1, out1, out2, out3, out4) \
+({ \
+ unsigned long __dummy1, __dummy2; \
+ __asm__ __volatile__ ("inl %%dx" : \
+ "=a"(out1), \
+ "=b"(out2), \
+ "=c"(out3), \
+ "=d"(out4), \
+ "=S"(__dummy1), \
+ "=D"(__dummy2) : \
+ "a"(VMMOUSE_PROTO_MAGIC), \
+ "b"(in1), \
+ "c"(VMMOUSE_PROTO_CMD_##cmd), \
+ "d"(VMMOUSE_PROTO_PORT) : \
+ "memory"); \
+})
+
+/**
+ * vmmouse_report_button - report button state on the correct input device
+ *
+ * @psmouse: Pointer to the psmouse struct
+ * @abs_dev: The absolute input device
+ * @rel_dev: The relative input device
+ * @pref_dev: The preferred device for reporting
+ * @code: Button code
+ * @value: Button value
+ *
+ * Report @value and @code on @pref_dev, unless the button is already
+ * pressed on the other device, in which case the state is reported on that
+ * device.
+ */
+static void vmmouse_report_button(struct psmouse *psmouse,
+ struct input_dev *abs_dev,
+ struct input_dev *rel_dev,
+ struct input_dev *pref_dev,
+ unsigned int code, int value)
+{
+ if (test_bit(code, abs_dev->key))
+ pref_dev = abs_dev;
+ else if (test_bit(code, rel_dev->key))
+ pref_dev = rel_dev;
+
+ input_report_key(pref_dev, code, value);
+}
+
+/**
+ * vmmouse_report_events - process events on the vmmouse communications channel
+ *
+ * @psmouse: Pointer to the psmouse struct
+ *
+ * This function pulls events from the vmmouse communications channel and
+ * reports them on the correct (absolute or relative) input device. When the
+ * communications channel is drained, or if we've processed more than 255
+ * psmouse commands, the function returns PSMOUSE_FULL_PACKET. If there is a
+ * host- or synchronization error, the function returns PSMOUSE_BAD_DATA in
+ * the hope that the caller will reset the communications channel.
+ */
+static psmouse_ret_t vmmouse_report_events(struct psmouse *psmouse)
+{
+ struct input_dev *rel_dev = psmouse->dev;
+ struct vmmouse_data *priv = psmouse->private;
+ struct input_dev *abs_dev = priv->abs_dev;
+ struct input_dev *pref_dev;
+ u32 status, x, y, z;
+ u32 dummy1, dummy2, dummy3;
+ unsigned int queue_length;
+ unsigned int count = 255;
+
+ while (count--) {
+ /* See if we have motion data. */
+ VMMOUSE_CMD(ABSPOINTER_STATUS, 0,
+ status, dummy1, dummy2, dummy3);
+ if ((status & VMMOUSE_ERROR) == VMMOUSE_ERROR) {
+ psmouse_err(psmouse, "failed to fetch status data\n");
+ /*
+ * After a few attempts this will result in
+ * reconnect.
+ */
+ return PSMOUSE_BAD_DATA;
+ }
+
+ queue_length = status & 0xffff;
+ if (queue_length == 0)
+ break;
+
+ if (queue_length % 4) {
+ psmouse_err(psmouse, "invalid queue length\n");
+ return PSMOUSE_BAD_DATA;
+ }
+
+ /* Now get it */
+ VMMOUSE_CMD(ABSPOINTER_DATA, 4, status, x, y, z);
+
+ /*
+ * And report what we've got. Prefer to report button
+ * events on the same device where we report motion events.
+ * This doesn't work well with the mouse wheel, though. See
+ * below. Ideally we would want to report that on the
+ * preferred device as well.
+ */
+ if (status & VMMOUSE_RELATIVE_PACKET) {
+ pref_dev = rel_dev;
+ input_report_rel(rel_dev, REL_X, (s32)x);
+ input_report_rel(rel_dev, REL_Y, -(s32)y);
+ } else {
+ pref_dev = abs_dev;
+ input_report_abs(abs_dev, ABS_X, x);
+ input_report_abs(abs_dev, ABS_Y, y);
+ }
+
+ /* Xorg seems to ignore wheel events on absolute devices */
+ input_report_rel(rel_dev, REL_WHEEL, -(s8)((u8) z));
+
+ vmmouse_report_button(psmouse, abs_dev, rel_dev,
+ pref_dev, BTN_LEFT,
+ status & VMMOUSE_LEFT_BUTTON);
+ vmmouse_report_button(psmouse, abs_dev, rel_dev,
+ pref_dev, BTN_RIGHT,
+ status & VMMOUSE_RIGHT_BUTTON);
+ vmmouse_report_button(psmouse, abs_dev, rel_dev,
+ pref_dev, BTN_MIDDLE,
+ status & VMMOUSE_MIDDLE_BUTTON);
+ input_sync(abs_dev);
+ input_sync(rel_dev);
+ }
+
+ return PSMOUSE_FULL_PACKET;
+}
+
+/**
+ * vmmouse_process_byte - process data on the ps/2 channel
+ *
+ * @psmouse: Pointer to the psmouse struct
+ *
+ * When the ps/2 channel indicates that there is vmmouse data available,
+ * call vmmouse channel processing. Otherwise, continue to accept bytes. If
+ * there is a synchronization or communication data error, return
+ * PSMOUSE_BAD_DATA in the hope that the caller will reset the mouse.
+ */
+static psmouse_ret_t vmmouse_process_byte(struct psmouse *psmouse)
+{
+ unsigned char *packet = psmouse->packet;
+
+ switch (psmouse->pktcnt) {
+ case 1:
+ return (packet[0] & 0x8) == 0x8 ?
+ PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
+
+ case 2:
+ return PSMOUSE_GOOD_DATA;
+
+ default:
+ return vmmouse_report_events(psmouse);
+ }
+}
+
+/**
+ * vmmouse_disable - Disable vmmouse
+ *
+ * @psmouse: Pointer to the psmouse struct
+ *
+ * Tries to disable vmmouse mode.
+ */
+static void vmmouse_disable(struct psmouse *psmouse)
+{
+ u32 status;
+ u32 dummy1, dummy2, dummy3, dummy4;
+
+ VMMOUSE_CMD(ABSPOINTER_COMMAND, VMMOUSE_CMD_DISABLE,
+ dummy1, dummy2, dummy3, dummy4);
+
+ VMMOUSE_CMD(ABSPOINTER_STATUS, 0,
+ status, dummy1, dummy2, dummy3);
+
+ if ((status & VMMOUSE_ERROR) != VMMOUSE_ERROR)
+ psmouse_warn(psmouse, "failed to disable vmmouse device\n");
+}
+
+/**
+ * vmmouse_enable - Enable vmmouse and request absolute mode.
+ *
+ * @psmouse: Pointer to the psmouse struct
+ *
+ * Tries to enable vmmouse mode. Performs basic checks and requests
+ * absolute vmmouse mode.
+ * Returns 0 on success, -ENODEV on failure.
+ */
+static int vmmouse_enable(struct psmouse *psmouse)
+{
+ u32 status, version;
+ u32 dummy1, dummy2, dummy3, dummy4;
+
+ /*
+ * Try enabling the device. If successful, we should be able to
+ * read valid version ID back from it.
+ */
+ VMMOUSE_CMD(ABSPOINTER_COMMAND, VMMOUSE_CMD_ENABLE,
+ dummy1, dummy2, dummy3, dummy4);
+
+ /*
+ * See if version ID can be retrieved.
+ */
+ VMMOUSE_CMD(ABSPOINTER_STATUS, 0, status, dummy1, dummy2, dummy3);
+ if ((status & 0x0000ffff) == 0) {
+ psmouse_dbg(psmouse, "empty flags - assuming no device\n");
+ return -ENXIO;
+ }
+
+ VMMOUSE_CMD(ABSPOINTER_DATA, 1 /* single item */,
+ version, dummy1, dummy2, dummy3);
+ if (version != VMMOUSE_VERSION_ID) {
+ psmouse_dbg(psmouse, "Unexpected version value: %u vs %u\n",
+ (unsigned) version, VMMOUSE_VERSION_ID);
+ vmmouse_disable(psmouse);
+ return -ENXIO;
+ }
+
+ /*
+ * Restrict ioport access, if possible.
+ */
+ VMMOUSE_CMD(ABSPOINTER_RESTRICT, VMMOUSE_RESTRICT_CPL0,
+ dummy1, dummy2, dummy3, dummy4);
+
+ VMMOUSE_CMD(ABSPOINTER_COMMAND, VMMOUSE_CMD_REQUEST_ABSOLUTE,
+ dummy1, dummy2, dummy3, dummy4);
+
+ return 0;
+}
+
+/*
+ * Array of supported hypervisors.
+ */
+static const struct hypervisor_x86 *vmmouse_supported_hypervisors[] = {
+ &x86_hyper_vmware,
+#ifdef CONFIG_KVM_GUEST
+ &x86_hyper_kvm,
+#endif
+};
+
+/**
+ * vmmouse_check_hypervisor - Check if we're running on a supported hypervisor
+ */
+static bool vmmouse_check_hypervisor(void)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(vmmouse_supported_hypervisors); i++)
+ if (vmmouse_supported_hypervisors[i] == x86_hyper)
+ return true;
+
+ return false;
+}
+
+/**
+ * vmmouse_detect - Probe whether vmmouse is available
+ *
+ * @psmouse: Pointer to the psmouse struct
+ * @set_properties: Whether to set psmouse name and vendor
+ *
+ * Returns 0 if vmmouse channel is available. Negative error code if not.
+ */
+int vmmouse_detect(struct psmouse *psmouse, bool set_properties)
+{
+ u32 response, version, dummy1, dummy2;
+
+ if (!vmmouse_check_hypervisor()) {
+ psmouse_dbg(psmouse,
+ "VMMouse not running on supported hypervisor.\n");
+ return -ENXIO;
+ }
+
+ if (!request_region(VMMOUSE_PROTO_PORT, 4, "vmmouse")) {
+ psmouse_dbg(psmouse, "VMMouse port in use.\n");
+ return -EBUSY;
+ }
+
+ /* Check if the device is present */
+ response = ~VMMOUSE_PROTO_MAGIC;
+ VMMOUSE_CMD(GETVERSION, 0, version, response, dummy1, dummy2);
+ if (response != VMMOUSE_PROTO_MAGIC || version == 0xffffffffU) {
+ release_region(VMMOUSE_PROTO_PORT, 4);
+ return -ENXIO;
+ }
+
+ if (set_properties) {
+ psmouse->vendor = VMMOUSE_VENDOR;
+ psmouse->name = VMMOUSE_NAME;
+ psmouse->model = version;
+ }
+
+ release_region(VMMOUSE_PROTO_PORT, 4);
+
+ return 0;
+}
+
+/**
+ * vmmouse_disconnect - Take down vmmouse driver
+ *
+ * @psmouse: Pointer to the psmouse struct
+ *
+ * Takes down vmmouse driver and frees resources set up in vmmouse_init().
+ */
+static void vmmouse_disconnect(struct psmouse *psmouse)
+{
+ struct vmmouse_data *priv = psmouse->private;
+
+ vmmouse_disable(psmouse);
+ psmouse_reset(psmouse);
+ input_unregister_device(priv->abs_dev);
+ kfree(priv);
+ release_region(VMMOUSE_PROTO_PORT, 4);
+}
+
+/**
+ * vmmouse_reconnect - Reset the ps/2 - and vmmouse connections
+ *
+ * @psmouse: Pointer to the psmouse struct
+ *
+ * Attempts to reset the mouse connections. Returns 0 on success and
+ * -1 on failure.
+ */
+static int vmmouse_reconnect(struct psmouse *psmouse)
+{
+ int error;
+
+ psmouse_reset(psmouse);
+ vmmouse_disable(psmouse);
+ error = vmmouse_enable(psmouse);
+ if (error) {
+ psmouse_err(psmouse,
+ "Unable to re-enable mouse when reconnecting, err: %d\n",
+ error);
+ return error;
+ }
+
+ return 0;
+}
+
+/**
+ * vmmouse_init - Initialize the vmmouse driver
+ *
+ * @psmouse: Pointer to the psmouse struct
+ *
+ * Requests the device and tries to enable vmmouse mode.
+ * If successful, sets up the input device for relative movement events.
+ * It also allocates another input device and sets it up for absolute motion
+ * events. Returns 0 on success and -1 on failure.
+ */
+int vmmouse_init(struct psmouse *psmouse)
+{
+ struct vmmouse_data *priv;
+ struct input_dev *rel_dev = psmouse->dev, *abs_dev;
+ int error;
+
+ if (!request_region(VMMOUSE_PROTO_PORT, 4, "vmmouse")) {
+ psmouse_dbg(psmouse, "VMMouse port in use.\n");
+ return -EBUSY;
+ }
+
+ psmouse_reset(psmouse);
+ error = vmmouse_enable(psmouse);
+ if (error)
+ goto release_region;
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ abs_dev = input_allocate_device();
+ if (!priv || !abs_dev) {
+ error = -ENOMEM;
+ goto init_fail;
+ }
+
+ priv->abs_dev = abs_dev;
+ psmouse->private = priv;
+
+ input_set_capability(rel_dev, EV_REL, REL_WHEEL);
+
+ /* Set up and register absolute device */
+ snprintf(priv->phys, sizeof(priv->phys), "%s/input1",
+ psmouse->ps2dev.serio->phys);
+
+ /* Mimic name setup for relative device in psmouse-base.c */
+ snprintf(priv->dev_name, sizeof(priv->dev_name), "%s %s %s",
+ VMMOUSE_PSNAME, VMMOUSE_VENDOR, VMMOUSE_NAME);
+ abs_dev->phys = priv->phys;
+ abs_dev->name = priv->dev_name;
+ abs_dev->id.bustype = BUS_I8042;
+ abs_dev->id.vendor = 0x0002;
+ abs_dev->id.product = PSMOUSE_VMMOUSE;
+ abs_dev->id.version = psmouse->model;
+ abs_dev->dev.parent = &psmouse->ps2dev.serio->dev;
+
+ error = input_register_device(priv->abs_dev);
+ if (error)
+ goto init_fail;
+
+ /* Set absolute device capabilities */
+ input_set_capability(abs_dev, EV_KEY, BTN_LEFT);
+ input_set_capability(abs_dev, EV_KEY, BTN_RIGHT);
+ input_set_capability(abs_dev, EV_KEY, BTN_MIDDLE);
+ input_set_capability(abs_dev, EV_ABS, ABS_X);
+ input_set_capability(abs_dev, EV_ABS, ABS_Y);
+ input_set_abs_params(abs_dev, ABS_X, 0, VMMOUSE_MAX_X, 0, 0);
+ input_set_abs_params(abs_dev, ABS_Y, 0, VMMOUSE_MAX_Y, 0, 0);
+
+ psmouse->protocol_handler = vmmouse_process_byte;
+ psmouse->disconnect = vmmouse_disconnect;
+ psmouse->reconnect = vmmouse_reconnect;
+
+ return 0;
+
+init_fail:
+ vmmouse_disable(psmouse);
+ psmouse_reset(psmouse);
+ input_free_device(abs_dev);
+ kfree(priv);
+ psmouse->private = NULL;
+
+release_region:
+ release_region(VMMOUSE_PROTO_PORT, 4);
+
+ return error;
+}
--- /dev/null
+/*
+ * Driver for Virtual PS/2 Mouse on VMware and QEMU hypervisors.
+ *
+ * Copyright (C) 2014, VMware, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#ifndef _VMMOUSE_H
+#define _VMMOUSE_H
+
+#ifdef CONFIG_MOUSE_PS2_VMMOUSE
+#define VMMOUSE_PSNAME "VirtualPS/2"
+
+int vmmouse_detect(struct psmouse *psmouse, bool set_properties);
+int vmmouse_init(struct psmouse *psmouse);
+#else
+static inline int vmmouse_detect(struct psmouse *psmouse, bool set_properties)
+{
+ return -ENOSYS;
+}
+static inline int vmmouse_init(struct psmouse *psmouse)
+{
+ return -ENOSYS;
+}
+#endif
+
+#endif
*
*/
+#include <linux/acpi.h>
+#include <linux/dmi.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/completion.h>
}
#ifdef CONFIG_OF
-static struct mxt_platform_data *mxt_parse_dt(struct i2c_client *client)
+static const struct mxt_platform_data *mxt_parse_dt(struct i2c_client *client)
{
struct mxt_platform_data *pdata;
u32 *keymap;
int proplen, i, ret;
if (!client->dev.of_node)
- return ERR_PTR(-ENODEV);
+ return ERR_PTR(-ENOENT);
pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return pdata;
}
#else
-static struct mxt_platform_data *mxt_parse_dt(struct i2c_client *client)
+static const struct mxt_platform_data *mxt_parse_dt(struct i2c_client *client)
{
- dev_dbg(&client->dev, "No platform data specified\n");
- return ERR_PTR(-EINVAL);
+ return ERR_PTR(-ENOENT);
+}
+#endif
+
+#ifdef CONFIG_ACPI
+
+struct mxt_acpi_platform_data {
+ const char *hid;
+ struct mxt_platform_data pdata;
+};
+
+static unsigned int samus_touchpad_buttons[] = {
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ BTN_LEFT
+};
+
+static struct mxt_acpi_platform_data samus_platform_data[] = {
+ {
+ /* Touchpad */
+ .hid = "ATML0000",
+ .pdata = {
+ .t19_num_keys = ARRAY_SIZE(samus_touchpad_buttons),
+ .t19_keymap = samus_touchpad_buttons,
+ },
+ },
+ {
+ /* Touchscreen */
+ .hid = "ATML0001",
+ },
+ { }
+};
+
+static const struct dmi_system_id mxt_dmi_table[] = {
+ {
+ /* 2015 Google Pixel */
+ .ident = "Chromebook Pixel 2",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Samus"),
+ },
+ .driver_data = samus_platform_data,
+ },
+ { }
+};
+
+static const struct mxt_platform_data *mxt_parse_acpi(struct i2c_client *client)
+{
+ struct acpi_device *adev;
+ const struct dmi_system_id *system_id;
+ const struct mxt_acpi_platform_data *acpi_pdata;
+
+ /*
+ * Ignore ACPI devices representing bootloader mode.
+ *
+ * This is a bit of a hack: Google Chromebook BIOS creates ACPI
+ * devices for both application and bootloader modes, but we are
+ * interested in application mode only (if device is in bootloader
+ * mode we'll end up switching into application anyway). So far
+ * application mode addresses were all above 0x40, so we'll use it
+ * as a threshold.
+ */
+ if (client->addr < 0x40)
+ return ERR_PTR(-ENXIO);
+
+ adev = ACPI_COMPANION(&client->dev);
+ if (!adev)
+ return ERR_PTR(-ENOENT);
+
+ system_id = dmi_first_match(mxt_dmi_table);
+ if (!system_id)
+ return ERR_PTR(-ENOENT);
+
+ acpi_pdata = system_id->driver_data;
+ if (!acpi_pdata)
+ return ERR_PTR(-ENOENT);
+
+ while (acpi_pdata->hid) {
+ if (!strcmp(acpi_device_hid(adev), acpi_pdata->hid))
+ return &acpi_pdata->pdata;
+
+ acpi_pdata++;
+ }
+
+ return ERR_PTR(-ENOENT);
+}
+#else
+static const struct mxt_platform_data *mxt_parse_acpi(struct i2c_client *client)
+{
+ return ERR_PTR(-ENOENT);
}
#endif
+static const struct mxt_platform_data *
+mxt_get_platform_data(struct i2c_client *client)
+{
+ const struct mxt_platform_data *pdata;
+
+ pdata = dev_get_platdata(&client->dev);
+ if (pdata)
+ return pdata;
+
+ pdata = mxt_parse_dt(client);
+ if (!IS_ERR(pdata) || PTR_ERR(pdata) != -ENOENT)
+ return pdata;
+
+ pdata = mxt_parse_acpi(client);
+ if (!IS_ERR(pdata) || PTR_ERR(pdata) != -ENOENT)
+ return pdata;
+
+ dev_err(&client->dev, "No platform data specified\n");
+ return ERR_PTR(-EINVAL);
+}
+
static int mxt_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
struct mxt_data *data;
const struct mxt_platform_data *pdata;
int error;
- pdata = dev_get_platdata(&client->dev);
- if (!pdata) {
- pdata = mxt_parse_dt(client);
- if (IS_ERR(pdata))
- return PTR_ERR(pdata);
- }
+ pdata = mxt_get_platform_data(client);
+ if (IS_ERR(pdata))
+ return PTR_ERR(pdata);
data = kzalloc(sizeof(struct mxt_data), GFP_KERNEL);
if (!data) {
};
MODULE_DEVICE_TABLE(of, mxt_of_match);
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id mxt_acpi_id[] = {
+ { "ATML0000", 0 }, /* Touchpad */
+ { "ATML0001", 0 }, /* Touchscreen */
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, mxt_acpi_id);
+#endif
+
static const struct i2c_device_id mxt_id[] = {
{ "qt602240_ts", 0 },
{ "atmel_mxt_ts", 0 },
.name = "atmel_mxt_ts",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(mxt_of_match),
+ .acpi_match_table = ACPI_PTR(mxt_acpi_id),
.pm = &mxt_pm_ops,
},
.probe = mxt_probe,
char *fw_name;
int error;
- fw_name = kasprintf(GFP_KERNEL, "elants_i2c_%4x.bin", ts->hw_version);
+ fw_name = kasprintf(GFP_KERNEL, "elants_i2c_%04x.bin", ts->hw_version);
if (!fw_name)
return -ENOMEM;
projects / linux.git / commitdiff