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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull more input subsystem updates from Dmitry Torokhov: - an update to Atmel MXT driver that makes it functional on Google Pixel 2 boxes (both touchpad and touchscreen) - a new VMware VMMouse driver that should allow us drop X vmmouse driver that requires root privileges (since it accesses ioports) - XBox One controllers now support force feedback (rumble) * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: lm8333 - fix broken email address Input: cyapa - fix setting suspend scan rate Input: elan_i2c - fix calculating number of x and y traces. Input: elan_i2c - report hovering contacts Input: elants_i2c - zero-extend hardware ID in firmware name Input: alps - document separate pointstick button bits for V2 devices Input: atmel_mxt_ts - add support for Google Pixel 2 Input: xpad - add rumble support for Xbox One controller Input: ff-core - use new debug macros Input: add vmmouse driver Input: elan_i2c - adjust for newer firmware pressure reporting
This commit is contained in:
Linus Torvalds
commit
b8ce8d7222
@ -94,6 +94,10 @@ PS/2 packet format
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Note that the device never signals overflow condition.
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For protocol version 2 devices when the trackpoint is used, and no fingers
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are on the touchpad, the M R L bits signal the combined status of both the
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pointingstick and touchpad buttons.
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ALPS Absolute Mode - Protocol Version 1
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--------------------------------------
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@ -107,7 +111,7 @@ ALPS Absolute Mode - Protocol Version 1
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ALPS Absolute Mode - Protocol Version 2
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---------------------------------------
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byte 0: 1 ? ? ? 1 ? ? ?
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byte 0: 1 ? ? ? 1 PSM PSR PSL
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byte 1: 0 x6 x5 x4 x3 x2 x1 x0
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byte 2: 0 x10 x9 x8 x7 ? fin ges
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byte 3: 0 y9 y8 y7 1 M R L
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@ -115,7 +119,8 @@ ALPS Absolute Mode - Protocol Version 2
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byte 5: 0 z6 z5 z4 z3 z2 z1 z0
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Protocol Version 2 DualPoint devices send standard PS/2 mouse packets for
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the DualPoint Stick.
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the DualPoint Stick. For non interleaved dualpoint devices the pointingstick
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buttons get reported separately in the PSM, PSR and PSL bits.
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Dualpoint device -- interleaved packet format
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---------------------------------------------
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@ -10597,6 +10597,14 @@ L: linux-kernel@vger.kernel.org
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S: Maintained
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F: drivers/misc/vmw_balloon.c
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VMWARE VMMOUSE SUBDRIVER
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M: "VMware Graphics" <linux-graphics-maintainer@vmware.com>
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M: "VMware, Inc." <pv-drivers@vmware.com>
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L: linux-input@vger.kernel.org
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S: Maintained
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F: drivers/input/mouse/vmmouse.c
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F: drivers/input/mouse/vmmouse.h
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VMWARE VMXNET3 ETHERNET DRIVER
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M: Shreyas Bhatewara <sbhatewara@vmware.com>
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M: "VMware, Inc." <pv-drivers@vmware.com>
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@ -23,8 +23,6 @@
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/* #define DEBUG */
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#define pr_fmt(fmt) KBUILD_BASENAME ": " fmt
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#include <linux/input.h>
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#include <linux/module.h>
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#include <linux/mutex.h>
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@ -116,7 +114,7 @@ int input_ff_upload(struct input_dev *dev, struct ff_effect *effect,
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if (effect->type < FF_EFFECT_MIN || effect->type > FF_EFFECT_MAX ||
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!test_bit(effect->type, dev->ffbit)) {
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pr_debug("invalid or not supported effect type in upload\n");
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dev_dbg(&dev->dev, "invalid or not supported effect type in upload\n");
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return -EINVAL;
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}
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@ -124,7 +122,7 @@ int input_ff_upload(struct input_dev *dev, struct ff_effect *effect,
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(effect->u.periodic.waveform < FF_WAVEFORM_MIN ||
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effect->u.periodic.waveform > FF_WAVEFORM_MAX ||
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!test_bit(effect->u.periodic.waveform, dev->ffbit))) {
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pr_debug("invalid or not supported wave form in upload\n");
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dev_dbg(&dev->dev, "invalid or not supported wave form in upload\n");
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return -EINVAL;
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}
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@ -246,7 +244,7 @@ static int flush_effects(struct input_dev *dev, struct file *file)
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struct ff_device *ff = dev->ff;
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int i;
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pr_debug("flushing now\n");
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dev_dbg(&dev->dev, "flushing now\n");
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mutex_lock(&ff->mutex);
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@ -316,7 +314,7 @@ int input_ff_create(struct input_dev *dev, unsigned int max_effects)
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int i;
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if (!max_effects) {
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pr_err("cannot allocate device without any effects\n");
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dev_err(&dev->dev, "cannot allocate device without any effects\n");
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return -EINVAL;
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}
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@ -31,12 +31,14 @@
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* - the iForce driver drivers/char/joystick/iforce.c
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* - the skeleton-driver drivers/usb/usb-skeleton.c
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* - Xbox 360 information http://www.free60.org/wiki/Gamepad
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* - Xbox One information https://github.com/quantus/xbox-one-controller-protocol
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*
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* Thanks to:
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* - ITO Takayuki for providing essential xpad information on his website
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* - Vojtech Pavlik - iforce driver / input subsystem
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* - Greg Kroah-Hartman - usb-skeleton driver
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* - XBOX Linux project - extra USB id's
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* - Pekka Pöyry (quantus) - Xbox One controller reverse engineering
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*
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* TODO:
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* - fine tune axes (especially trigger axes)
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@ -828,6 +830,23 @@ static int xpad_play_effect(struct input_dev *dev, void *data, struct ff_effect
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return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
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case XTYPE_XBOXONE:
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xpad->odata[0] = 0x09; /* activate rumble */
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xpad->odata[1] = 0x08;
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xpad->odata[2] = 0x00;
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xpad->odata[3] = 0x08; /* continuous effect */
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xpad->odata[4] = 0x00; /* simple rumble mode */
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xpad->odata[5] = 0x03; /* L and R actuator only */
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xpad->odata[6] = 0x00; /* TODO: LT actuator */
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xpad->odata[7] = 0x00; /* TODO: RT actuator */
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xpad->odata[8] = strong / 256; /* left actuator */
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xpad->odata[9] = weak / 256; /* right actuator */
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xpad->odata[10] = 0x80; /* length of pulse */
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xpad->odata[11] = 0x00; /* stop period of pulse */
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xpad->irq_out->transfer_buffer_length = 12;
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return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
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default:
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dev_dbg(&xpad->dev->dev,
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"%s - rumble command sent to unsupported xpad type: %d\n",
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@ -841,7 +860,7 @@ static int xpad_play_effect(struct input_dev *dev, void *data, struct ff_effect
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static int xpad_init_ff(struct usb_xpad *xpad)
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{
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if (xpad->xtype == XTYPE_UNKNOWN || xpad->xtype == XTYPE_XBOXONE)
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if (xpad->xtype == XTYPE_UNKNOWN)
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return 0;
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input_set_capability(xpad->dev, EV_FF, FF_RUMBLE);
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@ -1,6 +1,6 @@
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/*
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* LM8333 keypad driver
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* Copyright (C) 2012 Wolfram Sang, Pengutronix <w.sang@pengutronix.de>
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* Copyright (C) 2012 Wolfram Sang, Pengutronix <kernel@pengutronix.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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@ -231,6 +231,6 @@ static struct i2c_driver lm8333_driver = {
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};
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module_i2c_driver(lm8333_driver);
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MODULE_AUTHOR("Wolfram Sang <w.sang@pengutronix.de>");
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MODULE_AUTHOR("Wolfram Sang <kernel@pengutronix.de>");
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MODULE_DESCRIPTION("LM8333 keyboard driver");
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MODULE_LICENSE("GPL v2");
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@ -149,6 +149,18 @@ config MOUSE_PS2_FOCALTECH
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If unsure, say Y.
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config MOUSE_PS2_VMMOUSE
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bool "Virtual mouse (vmmouse)"
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depends on MOUSE_PS2 && X86 && HYPERVISOR_GUEST
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help
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Say Y here if you are running under control of VMware hypervisor
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(ESXi, Workstation or Fusion). Also make sure that when you enable
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this option, you remove the xf86-input-vmmouse user-space driver
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or upgrade it to at least xf86-input-vmmouse 13.0.1, which doesn't
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load in the presence of an in-kernel vmmouse driver.
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If unsure, say N.
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config MOUSE_SERIAL
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tristate "Serial mouse"
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select SERIO
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@ -36,6 +36,7 @@ psmouse-$(CONFIG_MOUSE_PS2_SENTELIC) += sentelic.o
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psmouse-$(CONFIG_MOUSE_PS2_TRACKPOINT) += trackpoint.o
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psmouse-$(CONFIG_MOUSE_PS2_TOUCHKIT) += touchkit_ps2.o
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psmouse-$(CONFIG_MOUSE_PS2_CYPRESS) += cypress_ps2.o
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psmouse-$(CONFIG_MOUSE_PS2_VMMOUSE) += vmmouse.o
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elan_i2c-objs := elan_i2c_core.o
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elan_i2c-$(CONFIG_MOUSE_ELAN_I2C_I2C) += elan_i2c_i2c.o
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@ -723,7 +723,7 @@ static ssize_t cyapa_update_suspend_scanrate(struct device *dev,
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} else if (sysfs_streq(buf, OFF_MODE_NAME)) {
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cyapa->suspend_power_mode = PWR_MODE_OFF;
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} else if (!kstrtou16(buf, 10, &sleep_time)) {
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cyapa->suspend_sleep_time = max_t(u16, sleep_time, 1000);
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cyapa->suspend_sleep_time = min_t(u16, sleep_time, 1000);
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cyapa->suspend_power_mode =
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cyapa_sleep_time_to_pwr_cmd(cyapa->suspend_sleep_time);
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} else {
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@ -840,7 +840,7 @@ static ssize_t cyapa_update_rt_suspend_scanrate(struct device *dev,
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if (error)
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return error;
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cyapa->runtime_suspend_sleep_time = max_t(u16, time, 1000);
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cyapa->runtime_suspend_sleep_time = min_t(u16, time, 1000);
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cyapa->runtime_suspend_power_mode =
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cyapa_sleep_time_to_pwr_cmd(cyapa->runtime_suspend_sleep_time);
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@ -25,6 +25,7 @@
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#define ETP_ENABLE_CALIBRATE 0x0002
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#define ETP_DISABLE_CALIBRATE 0x0000
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#define ETP_DISABLE_POWER 0x0001
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#define ETP_PRESSURE_OFFSET 25
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/* IAP Firmware handling */
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#define ETP_FW_NAME "elan_i2c.bin"
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@ -79,6 +80,8 @@ struct elan_transport_ops {
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struct completion *reset_done);
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int (*get_report)(struct i2c_client *client, u8 *report);
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int (*get_pressure_adjustment)(struct i2c_client *client,
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int *adjustment);
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};
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extern const struct elan_transport_ops elan_smbus_ops, elan_i2c_ops;
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@ -4,7 +4,7 @@
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* Copyright (c) 2013 ELAN Microelectronics Corp.
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*
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* Author: 林政維 (Duson Lin) <dusonlin@emc.com.tw>
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* Version: 1.5.6
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* Version: 1.5.7
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*
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* Based on cyapa driver:
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* copyright (c) 2011-2012 Cypress Semiconductor, Inc.
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@ -40,8 +40,7 @@
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#include "elan_i2c.h"
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#define DRIVER_NAME "elan_i2c"
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#define ELAN_DRIVER_VERSION "1.5.6"
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#define ETP_PRESSURE_OFFSET 25
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#define ELAN_DRIVER_VERSION "1.5.7"
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#define ETP_MAX_PRESSURE 255
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#define ETP_FWIDTH_REDUCE 90
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#define ETP_FINGER_WIDTH 15
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@ -53,6 +52,7 @@
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#define ETP_REPORT_ID_OFFSET 2
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#define ETP_TOUCH_INFO_OFFSET 3
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#define ETP_FINGER_DATA_OFFSET 4
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#define ETP_HOVER_INFO_OFFSET 30
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#define ETP_MAX_REPORT_LEN 34
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/* The main device structure */
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@ -81,7 +81,7 @@ struct elan_tp_data {
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u8 sm_version;
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u8 iap_version;
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u16 fw_checksum;
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int pressure_adjustment;
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u8 mode;
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bool irq_wake;
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@ -229,6 +229,11 @@ static int elan_query_device_info(struct elan_tp_data *data)
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if (error)
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return error;
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error = data->ops->get_pressure_adjustment(data->client,
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&data->pressure_adjustment);
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if (error)
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return error;
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return 0;
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}
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@ -721,13 +726,13 @@ static const struct attribute_group *elan_sysfs_groups[] = {
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*/
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static void elan_report_contact(struct elan_tp_data *data,
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int contact_num, bool contact_valid,
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u8 *finger_data)
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bool hover_event, u8 *finger_data)
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{
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struct input_dev *input = data->input;
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unsigned int pos_x, pos_y;
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unsigned int pressure, mk_x, mk_y;
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unsigned int area_x, area_y, major, minor, new_pressure;
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unsigned int area_x, area_y, major, minor;
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unsigned int scaled_pressure;
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if (contact_valid) {
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pos_x = ((finger_data[0] & 0xf0) << 4) |
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@ -756,15 +761,18 @@ static void elan_report_contact(struct elan_tp_data *data,
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major = max(area_x, area_y);
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minor = min(area_x, area_y);
|
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|
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new_pressure = pressure + ETP_PRESSURE_OFFSET;
|
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if (new_pressure > ETP_MAX_PRESSURE)
|
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new_pressure = ETP_MAX_PRESSURE;
|
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scaled_pressure = pressure + data->pressure_adjustment;
|
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|
||||
if (scaled_pressure > ETP_MAX_PRESSURE)
|
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scaled_pressure = ETP_MAX_PRESSURE;
|
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|
||||
input_mt_slot(input, contact_num);
|
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input_mt_report_slot_state(input, MT_TOOL_FINGER, true);
|
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input_report_abs(input, ABS_MT_POSITION_X, pos_x);
|
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input_report_abs(input, ABS_MT_POSITION_Y, data->max_y - pos_y);
|
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input_report_abs(input, ABS_MT_PRESSURE, new_pressure);
|
||||
input_report_abs(input, ABS_MT_DISTANCE, hover_event);
|
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input_report_abs(input, ABS_MT_PRESSURE,
|
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hover_event ? 0 : scaled_pressure);
|
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input_report_abs(input, ABS_TOOL_WIDTH, mk_x);
|
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input_report_abs(input, ABS_MT_TOUCH_MAJOR, major);
|
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input_report_abs(input, ABS_MT_TOUCH_MINOR, minor);
|
||||
@ -780,11 +788,14 @@ static void elan_report_absolute(struct elan_tp_data *data, u8 *packet)
|
||||
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;
|
||||
@ -878,6 +889,7 @@ static int elan_setup_input_device(struct elan_tp_data *data)
|
||||
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;
|
||||
|
||||
|
||||
@ -41,6 +41,7 @@
|
||||
#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
|
||||
@ -364,8 +365,29 @@ static int elan_i2c_get_num_traces(struct i2c_client *client,
|
||||
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;
|
||||
}
|
||||
@ -602,6 +624,7 @@ const struct elan_transport_ops elan_i2c_ops = {
|
||||
.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,
|
||||
|
||||
@ -268,12 +268,19 @@ static int elan_smbus_get_num_traces(struct i2c_client *client,
|
||||
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)
|
||||
{
|
||||
@ -497,6 +504,7 @@ const struct elan_transport_ops elan_smbus_ops = {
|
||||
.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,
|
||||
|
||||
@ -36,6 +36,7 @@
|
||||
#include "sentelic.h"
|
||||
#include "cypress_ps2.h"
|
||||
#include "focaltech.h"
|
||||
#include "vmmouse.h"
|
||||
|
||||
#define DRIVER_DESC "PS/2 mouse driver"
|
||||
|
||||
@ -790,6 +791,13 @@ static int psmouse_extensions(struct psmouse *psmouse,
|
||||
}
|
||||
}
|
||||
|
||||
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).
|
||||
@ -1112,6 +1120,15 @@ static const struct psmouse_protocol psmouse_protocols[] = {
|
||||
.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,
|
||||
|
||||
@ -103,6 +103,7 @@ enum psmouse_type {
|
||||
PSMOUSE_SYNAPTICS_RELATIVE,
|
||||
PSMOUSE_CYPRESS,
|
||||
PSMOUSE_FOCALTECH,
|
||||
PSMOUSE_VMMOUSE,
|
||||
PSMOUSE_AUTO /* This one should always be last */
|
||||
};
|
||||
|
||||
|
||||
508
drivers/input/mouse/vmmouse.c
Normal file
508
drivers/input/mouse/vmmouse.c
Normal file
@ -0,0 +1,508 @@
|
||||
/*
|
||||
* 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;
|
||||
}
|
||||
30
drivers/input/mouse/vmmouse.h
Normal file
30
drivers/input/mouse/vmmouse.h
Normal file
@ -0,0 +1,30 @@
|
||||
/*
|
||||
* 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
|
||||
@ -14,6 +14,8 @@
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/acpi.h>
|
||||
#include <linux/dmi.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/completion.h>
|
||||
@ -2371,7 +2373,7 @@ static void mxt_input_close(struct input_dev *dev)
|
||||
}
|
||||
|
||||
#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;
|
||||
@ -2379,7 +2381,7 @@ static struct mxt_platform_data *mxt_parse_dt(struct i2c_client *client)
|
||||
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)
|
||||
@ -2410,25 +2412,132 @@ static struct mxt_platform_data *mxt_parse_dt(struct i2c_client *client)
|
||||
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) {
|
||||
@ -2536,6 +2645,15 @@ static const struct of_device_id mxt_of_match[] = {
|
||||
};
|
||||
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 },
|
||||
@ -2550,6 +2668,7 @@ static struct i2c_driver mxt_driver = {
|
||||
.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,
|
||||
|
||||
@ -699,7 +699,7 @@ static int elants_i2c_fw_update(struct elants_data *ts)
|
||||
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;
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user