Staging: initial version of the nvec driver
This is an implementation of a NVidia compliant embedded controller protocol driver. It is used on some ARM-Tegra boards for device communication. Signed-off-by: Marc Dietrich <marvin24@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Родитель
23a4231150
Коммит
32890b9830
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@ -175,5 +175,7 @@ source "drivers/staging/altera-stapl/Kconfig"
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source "drivers/staging/mei/Kconfig"
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source "drivers/staging/nvec/Kconfig"
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endif # !STAGING_EXCLUDE_BUILD
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endif # STAGING
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@ -70,3 +70,4 @@ obj-$(CONFIG_TOUCHSCREEN_CLEARPAD_TM1217) += cptm1217/
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obj-$(CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4) += ste_rmi4/
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obj-$(CONFIG_DRM_PSB) += gma500/
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obj-$(CONFIG_INTEL_MEI) += mei/
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obj-$(CONFIG_MFD_NVEC) += nvec/
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@ -0,0 +1,27 @@
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config MFD_NVEC
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bool "NV Tegra Embedded Controller SMBus Interface"
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depends on I2C && GPIOLIB && ARCH_TEGRA
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help
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Say Y here to enable support for a nVidia compliant embedded
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controller.
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config KEYBOARD_NVEC
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bool "Keyboard on nVidia compliant EC"
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depends on MFD_NVEC
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help
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Say Y here to enable support for a keyboard connected to
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a nVidia compliant embedded controller.
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config SERIO_NVEC_PS2
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bool "PS2 on nVidia EC"
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depends on MFD_NVEC
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help
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Say Y here to enable support for a Touchpad / Mouse connected
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to a nVidia compliant embedded controller.
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config NVEC_POWER
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bool "NVEC charger and battery"
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depends on MFD_NVEC
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help
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Say Y to enable support for battery and charger interface for
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nVidia compliant embedded controllers.
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@ -0,0 +1,4 @@
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obj-$(CONFIG_SERIO_NVEC_PS2) += nvec_ps2.o
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obj-$(CONFIG_MFD_NVEC) += nvec.o
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obj-$(CONFIG_NVEC_POWER) += nvec_power.o
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obj-$(CONFIG_KEYBOARD_NVEC) += nvec_kbd.o
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@ -0,0 +1,14 @@
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NVEC: An NVidia compliant Embedded Controller Protocol Implemenation
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This is an implementation of the NVEC protocol used to communicate with an
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embedded controller (EC) via I2C bus. The EC is an I2C master while the host
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processor is the I2C slave. Requests from the host processor to the EC are
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started by triggering a gpio line.
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There is no written documentation of the protocol available to the public,
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but the source code[1] of the published nvec reference drivers can be a guide.
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This driver is currently only used by the AC100 project[2], but it is likely,
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that other Tegra boards (not yet mainlined, if ever) also use it.
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[1] e.g. http://nv-tegra.nvidia.com/gitweb/?p=linux-2.6.git;a=tree;f=arch/arm/mach-tegra/nvec;hb=android-tegra-2.6.32
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[2] http://gitorious.org/ac100, http://launchpad.net/ac100
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@ -0,0 +1,8 @@
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ToDo list (incomplete, unordered)
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- convert mouse, keyboard, and power to platform devices
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- add copyright / driver author / license
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- add compile as module support
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- move nvec devices to mfd cells?
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- adjust to kernel style
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@ -0,0 +1,266 @@
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/*
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* drivers/input/keyboard/tegra-nvec.c
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*
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* Keyboard class input driver for keyboards connected to an NvEc compliant
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* embedded controller
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*
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* Copyright (c) 2009, NVIDIA Corporation.
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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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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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static unsigned short code_tab_102us[] = {
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KEY_GRAVE, // 0x00
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KEY_ESC,
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KEY_1,
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KEY_2,
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KEY_3,
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KEY_4,
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KEY_5,
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KEY_6,
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KEY_7,
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KEY_8,
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KEY_9,
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KEY_0,
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KEY_MINUS,
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KEY_EQUAL,
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KEY_BACKSPACE,
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KEY_TAB,
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KEY_Q, // 0x10
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KEY_W,
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KEY_E,
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KEY_R,
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KEY_T,
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KEY_Y,
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KEY_U,
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KEY_I,
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KEY_O,
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KEY_P,
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KEY_LEFTBRACE,
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KEY_RIGHTBRACE,
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KEY_ENTER,
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KEY_LEFTCTRL,
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KEY_A,
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KEY_S,
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KEY_D, // 0x20
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KEY_F,
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KEY_G,
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KEY_H,
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KEY_J,
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KEY_K,
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KEY_L,
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KEY_SEMICOLON,
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KEY_APOSTROPHE,
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KEY_GRAVE,
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KEY_LEFTSHIFT,
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KEY_BACKSLASH,
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KEY_Z,
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KEY_X,
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KEY_C,
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KEY_V,
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KEY_B, // 0x30
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KEY_N,
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KEY_M,
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KEY_COMMA,
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KEY_DOT,
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KEY_SLASH,
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KEY_RIGHTSHIFT,
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KEY_KPASTERISK,
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KEY_LEFTALT,
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KEY_SPACE,
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KEY_CAPSLOCK,
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KEY_F1,
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KEY_F2,
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KEY_F3,
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KEY_F4,
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KEY_F5,
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KEY_F6, // 0x40
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KEY_F7,
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KEY_F8,
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KEY_F9,
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KEY_F10,
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KEY_FN,
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0, //VK_SCROLL
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KEY_KP7,
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KEY_KP8,
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KEY_KP9,
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KEY_KPMINUS,
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KEY_KP4,
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KEY_KP5,
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KEY_KP6,
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KEY_KPPLUS,
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KEY_KP1,
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KEY_KP2, // 0x50
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KEY_KP3,
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KEY_KP0,
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KEY_KPDOT,
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KEY_MENU, //VK_SNAPSHOT
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KEY_POWER,
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KEY_102ND, //VK_OEM_102 henry+ 0x2B (43) BACKSLASH have been used,change to use 0X56 (86)
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KEY_F11, //VK_F11
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KEY_F12, //VK_F12
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0, // 60
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0,
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0,
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KEY_SEARCH, // add search key map
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0, // 70
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0,
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0,
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KEY_KP5, //73 for JP keyboard '\' key, report 0x4c
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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KEY_KP9, //7d for JP keyboard '|' key, report 0x49
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};
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static unsigned short extcode_tab_us102[] = {
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0, // 0xE0 0x10
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0, //VK_MEDIA_NEXT_TRACK,
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0,
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0,
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0, //VK_RETURN,
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KEY_RIGHTCTRL, //VK_RCONTROL,
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0,
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0,
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KEY_MUTE, // 0xE0 0x20
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0, //VK_LAUNCH_APP1
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0, //VK_MEDIA_PLAY_PAUSE
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0,
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0, //VK_MEDIA_STOP
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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KEY_VOLUMEUP, // 0xE0 0x30
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0,
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0, //VK_BROWSER_HOME
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0,
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0,
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KEY_KPSLASH, //VK_DIVIDE
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0,
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KEY_SYSRQ, //VK_SNAPSHOT
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KEY_RIGHTALT, //VK_RMENU
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0, //VK_OEM_NV_BACKLIGHT_UP
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0, //VK_OEM_NV_BACKLIGHT_DN
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0, //VK_OEM_NV_BACKLIGHT_AUTOTOGGLE
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0, //VK_OEM_NV_POWER_INFO
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0, //VK_OEM_NV_WIFI_TOGGLE
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0, //VK_OEM_NV_DISPLAY_SELECT
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0, //VK_OEM_NV_AIRPLANE_TOGGLE
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0, //0xE0 0x40
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KEY_LEFT, //VK_OEM_NV_RESERVED henry+ for JP keyboard
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0, //VK_OEM_NV_RESERVED
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0, //VK_OEM_NV_RESERVED
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0, //VK_OEM_NV_RESERVED
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0, //VK_OEM_NV_RESERVED
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KEY_CANCEL,
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KEY_HOME,
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KEY_UP,
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KEY_PAGEUP, //VK_PRIOR
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0,
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KEY_LEFT,
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0,
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KEY_RIGHT,
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0,
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KEY_END,
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KEY_DOWN, // 0xE0 0x50
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KEY_PAGEDOWN, //VK_NEXT
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KEY_INSERT,
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KEY_DELETE,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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KEY_LEFTMETA, //VK_LWIN
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0, //VK_RWIN
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KEY_ESC, //VK_APPS
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KEY_KPMINUS, //for power button workaround
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0,
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0,
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0,
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0,
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0,
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0,
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0, //VK_BROWSER_SEARCH
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0, //VK_BROWSER_FAVORITES
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0, //VK_BROWSER_REFRESH
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0, //VK_BROWSER_STOP
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0, //VK_BROWSER_FORWARD
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0, //VK_BROWSER_BACK
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0, //VK_LAUNCH_APP2
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0, //VK_LAUNCH_MAIL
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0, //VK_LAUNCH_MEDIA_SELECT
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};
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static unsigned short* code_tabs[] = {code_tab_102us, extcode_tab_us102 };
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@ -0,0 +1,468 @@
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// #define DEBUG
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/* ToDo list (incomplete, unorderd)
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- convert mouse, keyboard, and power to platform devices
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*/
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <linux/completion.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/slab.h>
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#include <linux/gpio.h>
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#include <linux/serio.h>
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#include <linux/delay.h>
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#include <linux/input.h>
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#include <linux/workqueue.h>
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#include <linux/clk.h>
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#include <mach/iomap.h>
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#include <mach/clk.h>
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#include <linux/semaphore.h>
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#include <linux/list.h>
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#include <linux/notifier.h>
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#include <linux/workqueue.h>
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#include <linux/platform_device.h>
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#include "nvec.h"
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static unsigned char EC_DISABLE_EVENT_REPORTING[] = {'\x04','\x00','\x00'};
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static unsigned char EC_ENABLE_EVENT_REPORTING[] = {'\x04','\x00','\x01'};
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static unsigned char EC_GET_FIRMWARE_VERSION[] = {'\x07','\x15'};
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static struct nvec_chip *nvec_power_handle;
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int nvec_register_notifier(struct nvec_chip *nvec, struct notifier_block *nb,
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unsigned int events)
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{
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return atomic_notifier_chain_register(&nvec->notifier_list, nb);
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}
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EXPORT_SYMBOL_GPL(nvec_register_notifier);
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static int nvec_status_notifier(struct notifier_block *nb, unsigned long event_type,
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void *data)
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{
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unsigned char *msg = (unsigned char *)data;
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int i;
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if(event_type != NVEC_CNTL)
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return NOTIFY_DONE;
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printk("unhandled msg type %ld, payload: ", event_type);
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for (i = 0; i < msg[1]; i++)
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printk("%0x ", msg[i+2]);
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printk("\n");
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return NOTIFY_OK;
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}
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void nvec_write_async(struct nvec_chip *nvec, unsigned char *data, short size)
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{
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struct nvec_msg *msg = kzalloc(sizeof(struct nvec_msg), GFP_NOWAIT);
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msg->data = kzalloc(size, GFP_NOWAIT);
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msg->data[0] = size;
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memcpy(msg->data + 1, data, size);
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msg->size = size + 1;
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msg->pos = 0;
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INIT_LIST_HEAD(&msg->node);
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list_add_tail(&msg->node, &nvec->tx_data);
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gpio_set_value(nvec->gpio, 0);
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}
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EXPORT_SYMBOL(nvec_write_async);
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static void nvec_request_master(struct work_struct *work)
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{
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struct nvec_chip *nvec = container_of(work, struct nvec_chip, tx_work);
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if(!list_empty(&nvec->tx_data)) {
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gpio_set_value(nvec->gpio, 0);
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}
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}
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static int parse_msg(struct nvec_chip *nvec, struct nvec_msg *msg)
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{
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int i;
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if((msg->data[0] & 1<<7) == 0 && msg->data[3]) {
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dev_err(nvec->dev, "ec responded %02x %02x %02x %02x\n", msg->data[0],
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msg->data[1], msg->data[2], msg->data[3]);
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return -EINVAL;
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}
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if ((msg->data[0] >> 7 ) == 1 && (msg->data[0] & 0x0f) == 5)
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{
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dev_warn(nvec->dev, "ec system event ");
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for (i=0; i < msg->data[1]; i++)
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dev_warn(nvec->dev, "%02x ", msg->data[2+i]);
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dev_warn(nvec->dev, "\n");
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}
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atomic_notifier_call_chain(&nvec->notifier_list, msg->data[0] & 0x8f, msg->data);
|
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|
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return 0;
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}
|
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|
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static struct nvec_msg *nvec_write_sync(struct nvec_chip *nvec, unsigned char *data, short size)
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{
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down(&nvec->sync_write_mutex);
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nvec->sync_write_pending = (data[1] << 8) + data[0];
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nvec_write_async(nvec, data, size);
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|
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dev_dbg(nvec->dev, "nvec_sync_write: 0x%04x\n", nvec->sync_write_pending);
|
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wait_for_completion(&nvec->sync_write);
|
||||
dev_dbg(nvec->dev, "nvec_sync_write: pong!\n");
|
||||
|
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up(&nvec->sync_write_mutex);
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|
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return nvec->last_sync_msg;
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}
|
||||
|
||||
/* RX worker */
|
||||
static void nvec_dispatch(struct work_struct *work)
|
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{
|
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struct nvec_chip *nvec = container_of(work, struct nvec_chip, rx_work);
|
||||
struct nvec_msg *msg;
|
||||
|
||||
while(!list_empty(&nvec->rx_data))
|
||||
{
|
||||
msg = list_first_entry(&nvec->rx_data, struct nvec_msg, node);
|
||||
list_del_init(&msg->node);
|
||||
|
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if(nvec->sync_write_pending == (msg->data[2] << 8) + msg->data[0])
|
||||
{
|
||||
dev_dbg(nvec->dev, "sync write completed!\n");
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nvec->sync_write_pending = 0;
|
||||
nvec->last_sync_msg = msg;
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||||
complete(&nvec->sync_write);
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||||
} else {
|
||||
parse_msg(nvec, msg);
|
||||
if((!msg) || (!msg->data))
|
||||
dev_warn(nvec->dev, "attempt access zero pointer");
|
||||
else {
|
||||
kfree(msg->data);
|
||||
kfree(msg);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static irqreturn_t i2c_interrupt(int irq, void *dev)
|
||||
{
|
||||
unsigned long status;
|
||||
unsigned long received;
|
||||
unsigned char to_send;
|
||||
struct nvec_msg *msg;
|
||||
struct nvec_chip *nvec = (struct nvec_chip *)dev;
|
||||
unsigned char *i2c_regs = nvec->i2c_regs;
|
||||
|
||||
status = readl(i2c_regs + I2C_SL_STATUS);
|
||||
|
||||
if(!(status & I2C_SL_IRQ))
|
||||
{
|
||||
dev_warn(nvec->dev, "nvec Spurious IRQ\n");
|
||||
//Yup, handled. ahum.
|
||||
goto handled;
|
||||
}
|
||||
if(status & END_TRANS && !(status & RCVD))
|
||||
{
|
||||
//Reenable IRQ only when even has been sent
|
||||
//printk("Write sequence ended !\n");
|
||||
//parse_msg(nvec);
|
||||
nvec->state = NVEC_WAIT;
|
||||
if(nvec->rx->size > 1)
|
||||
{
|
||||
list_add_tail(&nvec->rx->node, &nvec->rx_data);
|
||||
schedule_work(&nvec->rx_work);
|
||||
} else {
|
||||
kfree(nvec->rx->data);
|
||||
kfree(nvec->rx);
|
||||
}
|
||||
return IRQ_HANDLED;
|
||||
} else if(status & RNW)
|
||||
{
|
||||
// Work around for AP20 New Slave Hw Bug. Give 1us extra.
|
||||
// nvec/smbus/nvec_i2c_transport.c in NV`s crap for reference
|
||||
if(status & RCVD)
|
||||
udelay(3);
|
||||
|
||||
if(status & RCVD)
|
||||
{
|
||||
nvec->state = NVEC_WRITE;
|
||||
//Master wants something from us. New communication
|
||||
// dev_dbg(nvec->dev, "New read comm!\n");
|
||||
} else {
|
||||
//Master wants something from us from a communication we've already started
|
||||
// dev_dbg(nvec->dev, "Read comm cont !\n");
|
||||
}
|
||||
//if(msg_pos<msg_size) {
|
||||
if(list_empty(&nvec->tx_data))
|
||||
{
|
||||
dev_err(nvec->dev, "nvec empty tx - sending no-op\n");
|
||||
to_send = 0x8a;
|
||||
nvec_write_async(nvec, "\x07\x02", 2);
|
||||
// to_send = 0x01;
|
||||
} else {
|
||||
msg = list_first_entry(&nvec->tx_data, struct nvec_msg, node);
|
||||
if(msg->pos < msg->size) {
|
||||
to_send = msg->data[msg->pos];
|
||||
msg->pos++;
|
||||
} else {
|
||||
dev_err(nvec->dev, "nvec crap! %d\n", msg->size);
|
||||
to_send = 0x01;
|
||||
}
|
||||
|
||||
if(msg->pos >= msg->size)
|
||||
{
|
||||
list_del_init(&msg->node);
|
||||
kfree(msg->data);
|
||||
kfree(msg);
|
||||
schedule_work(&nvec->tx_work);
|
||||
nvec->state = NVEC_WAIT;
|
||||
}
|
||||
}
|
||||
writel(to_send, i2c_regs + I2C_SL_RCVD);
|
||||
|
||||
gpio_set_value(nvec->gpio, 1);
|
||||
|
||||
dev_dbg(nvec->dev, "nvec sent %x\n", to_send);
|
||||
|
||||
goto handled;
|
||||
} else {
|
||||
received = readl(i2c_regs + I2C_SL_RCVD);
|
||||
//Workaround?
|
||||
if(status & RCVD) {
|
||||
writel(0, i2c_regs + I2C_SL_RCVD);
|
||||
goto handled;
|
||||
}
|
||||
|
||||
if (nvec->state == NVEC_WAIT)
|
||||
{
|
||||
nvec->state = NVEC_READ;
|
||||
msg = kzalloc(sizeof(struct nvec_msg), GFP_NOWAIT);
|
||||
msg->data = kzalloc(32, GFP_NOWAIT);
|
||||
INIT_LIST_HEAD(&msg->node);
|
||||
nvec->rx = msg;
|
||||
} else
|
||||
msg = nvec->rx;
|
||||
|
||||
BUG_ON(msg->pos > 32);
|
||||
|
||||
msg->data[msg->pos] = received;
|
||||
msg->pos++;
|
||||
msg->size = msg->pos;
|
||||
dev_dbg(nvec->dev, "Got %02lx from Master (pos: %d)!\n", received, msg->pos);
|
||||
}
|
||||
handled:
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static int __devinit nvec_add_subdev(struct nvec_chip *nvec, struct nvec_subdev *subdev)
|
||||
{
|
||||
struct platform_device *pdev;
|
||||
|
||||
pdev = platform_device_alloc(subdev->name, subdev->id);
|
||||
pdev->dev.parent = nvec->dev;
|
||||
pdev->dev.platform_data = subdev->platform_data;
|
||||
|
||||
return platform_device_add(pdev);
|
||||
}
|
||||
|
||||
static void tegra_init_i2c_slave(struct nvec_platform_data *pdata, unsigned char *i2c_regs,
|
||||
struct clk *i2c_clk)
|
||||
{
|
||||
u32 val;
|
||||
|
||||
clk_enable(i2c_clk);
|
||||
tegra_periph_reset_assert(i2c_clk);
|
||||
udelay(2);
|
||||
tegra_periph_reset_deassert(i2c_clk);
|
||||
|
||||
writel(pdata->i2c_addr>>1, i2c_regs + I2C_SL_ADDR1);
|
||||
writel(0, i2c_regs + I2C_SL_ADDR2);
|
||||
|
||||
writel(0x1E, i2c_regs + I2C_SL_DELAY_COUNT);
|
||||
val = I2C_CNFG_NEW_MASTER_SFM | I2C_CNFG_PACKET_MODE_EN |
|
||||
(0x2 << I2C_CNFG_DEBOUNCE_CNT_SHIFT);
|
||||
writel(val, i2c_regs + I2C_CNFG);
|
||||
writel(I2C_SL_NEWL, i2c_regs + I2C_SL_CNFG);
|
||||
|
||||
clk_disable(i2c_clk);
|
||||
}
|
||||
|
||||
static void nvec_power_off(void)
|
||||
{
|
||||
nvec_write_async(nvec_power_handle, EC_DISABLE_EVENT_REPORTING, 3);
|
||||
nvec_write_async(nvec_power_handle, "\x04\x01", 2);
|
||||
}
|
||||
|
||||
static int __devinit tegra_nvec_probe(struct platform_device *pdev)
|
||||
{
|
||||
int err, i, ret;
|
||||
struct clk *i2c_clk;
|
||||
struct nvec_platform_data *pdata = pdev->dev.platform_data;
|
||||
struct nvec_chip *nvec;
|
||||
struct nvec_msg *msg;
|
||||
unsigned char *i2c_regs;
|
||||
|
||||
nvec = kzalloc(sizeof(struct nvec_chip), GFP_KERNEL);
|
||||
if(nvec == NULL) {
|
||||
dev_err(&pdev->dev, "failed to reserve memory\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
platform_set_drvdata(pdev, nvec);
|
||||
nvec->dev = &pdev->dev;
|
||||
nvec->gpio = pdata->gpio;
|
||||
nvec->irq = pdata->irq;
|
||||
|
||||
/*
|
||||
i2c_clk=clk_get_sys(NULL, "i2c");
|
||||
if(IS_ERR_OR_NULL(i2c_clk))
|
||||
printk(KERN_ERR"No such clock tegra-i2c.2\n");
|
||||
else
|
||||
clk_enable(i2c_clk);
|
||||
*/
|
||||
i2c_regs = ioremap(pdata->base, pdata->size);
|
||||
if(!i2c_regs) {
|
||||
dev_err(nvec->dev, "failed to ioremap registers\n");
|
||||
goto failed;
|
||||
}
|
||||
|
||||
nvec->i2c_regs = i2c_regs;
|
||||
|
||||
i2c_clk = clk_get_sys(pdata->clock, NULL);
|
||||
if(IS_ERR_OR_NULL(i2c_clk)) {
|
||||
dev_err(nvec->dev, "failed to get clock tegra-i2c.2\n");
|
||||
goto failed;
|
||||
}
|
||||
|
||||
tegra_init_i2c_slave(pdata, i2c_regs, i2c_clk);
|
||||
|
||||
err = request_irq(nvec->irq, i2c_interrupt, IRQF_DISABLED, "nvec", nvec);
|
||||
if(err) {
|
||||
dev_err(nvec->dev, "couldn't request irq");
|
||||
goto failed;
|
||||
}
|
||||
|
||||
clk_enable(i2c_clk);
|
||||
clk_set_rate(i2c_clk, 8*80000);
|
||||
|
||||
/* Set the gpio to low when we've got something to say */
|
||||
err = gpio_request(nvec->gpio, "nvec gpio");
|
||||
if(err < 0)
|
||||
dev_err(nvec->dev, "couldn't request gpio\n");
|
||||
|
||||
tegra_gpio_enable(nvec->gpio);
|
||||
gpio_direction_output(nvec->gpio, 1);
|
||||
gpio_set_value(nvec->gpio, 1);
|
||||
|
||||
ATOMIC_INIT_NOTIFIER_HEAD(&nvec->notifier_list);
|
||||
|
||||
init_completion(&nvec->sync_write);
|
||||
sema_init(&nvec->sync_write_mutex, 1);
|
||||
INIT_LIST_HEAD(&nvec->tx_data);
|
||||
INIT_LIST_HEAD(&nvec->rx_data);
|
||||
INIT_WORK(&nvec->rx_work, nvec_dispatch);
|
||||
INIT_WORK(&nvec->tx_work, nvec_request_master);
|
||||
|
||||
/* enable event reporting */
|
||||
nvec_write_async(nvec, EC_ENABLE_EVENT_REPORTING,
|
||||
sizeof(EC_ENABLE_EVENT_REPORTING));
|
||||
|
||||
nvec_kbd_init(nvec);
|
||||
#ifdef CONFIG_SERIO_NVEC_PS2
|
||||
nvec_ps2(nvec);
|
||||
#endif
|
||||
|
||||
/* setup subdevs */
|
||||
for (i = 0; i < pdata->num_subdevs; i++) {
|
||||
ret = nvec_add_subdev(nvec, &pdata->subdevs[i]);
|
||||
}
|
||||
|
||||
nvec->nvec_status_notifier.notifier_call = nvec_status_notifier;
|
||||
nvec_register_notifier(nvec, &nvec->nvec_status_notifier, 0);
|
||||
|
||||
nvec_power_handle = nvec;
|
||||
pm_power_off = nvec_power_off;
|
||||
|
||||
/* Get Firmware Version */
|
||||
msg = nvec_write_sync(nvec, EC_GET_FIRMWARE_VERSION,
|
||||
sizeof(EC_GET_FIRMWARE_VERSION));
|
||||
|
||||
dev_warn(nvec->dev, "ec firmware version %02x.%02x.%02x / %02x\n",
|
||||
msg->data[4], msg->data[5], msg->data[6], msg->data[7]);
|
||||
|
||||
kfree(msg->data);
|
||||
kfree(msg);
|
||||
|
||||
/* unmute speakers? */
|
||||
nvec_write_async(nvec, "\x0d\x10\x59\x94", 4);
|
||||
|
||||
/* enable lid switch event */
|
||||
nvec_write_async(nvec, "\x01\x01\x01\x00\x00\x02\x00", 7);
|
||||
|
||||
/* enable power button event */
|
||||
nvec_write_async(nvec, "\x01\x01\x01\x00\x00\x80\x00", 7);
|
||||
|
||||
return 0;
|
||||
|
||||
failed:
|
||||
kfree(nvec);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
static int __devexit tegra_nvec_remove(struct platform_device *pdev)
|
||||
{
|
||||
// TODO: unregister
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
|
||||
static int tegra_nvec_suspend(struct platform_device *pdev, pm_message_t state)
|
||||
{
|
||||
struct nvec_chip *nvec = platform_get_drvdata(pdev);
|
||||
|
||||
dev_dbg(nvec->dev, "suspending\n");
|
||||
nvec_write_async(nvec, EC_DISABLE_EVENT_REPORTING, 3);
|
||||
nvec_write_async(nvec, "\x04\x02", 2);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tegra_nvec_resume(struct platform_device *pdev) {
|
||||
|
||||
struct nvec_chip *nvec = platform_get_drvdata(pdev);
|
||||
|
||||
dev_dbg(nvec->dev, "resuming\n");
|
||||
nvec_write_async(nvec, EC_ENABLE_EVENT_REPORTING, 3);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#else
|
||||
#define tegra_nvec_suspend NULL
|
||||
#define tegra_nvec_resume NULL
|
||||
#endif
|
||||
|
||||
static struct platform_driver nvec_device_driver =
|
||||
{
|
||||
.probe = tegra_nvec_probe,
|
||||
.remove = __devexit_p(tegra_nvec_remove),
|
||||
.suspend = tegra_nvec_suspend,
|
||||
.resume = tegra_nvec_resume,
|
||||
.driver = {
|
||||
.name = "nvec",
|
||||
.owner = THIS_MODULE,
|
||||
}
|
||||
};
|
||||
|
||||
static int __init tegra_nvec_init(void)
|
||||
{
|
||||
return platform_driver_register(&nvec_device_driver);
|
||||
}
|
||||
|
||||
module_init(tegra_nvec_init);
|
||||
MODULE_ALIAS("platform:nvec");
|
|
@ -0,0 +1,110 @@
|
|||
#ifndef __LINUX_MFD_NVEC
|
||||
#define __LINUX_MFD_NVEC
|
||||
|
||||
#include <linux/semaphore.h>
|
||||
|
||||
typedef enum {
|
||||
NVEC_2BYTES,
|
||||
NVEC_3BYTES,
|
||||
NVEC_VAR_SIZE
|
||||
} nvec_size;
|
||||
|
||||
typedef enum {
|
||||
NOT_REALLY,
|
||||
YES,
|
||||
NOT_AT_ALL,
|
||||
} how_care;
|
||||
|
||||
typedef enum {
|
||||
NVEC_SYS=1,
|
||||
NVEC_BAT,
|
||||
NVEC_KBD = 5,
|
||||
NVEC_PS2,
|
||||
NVEC_CNTL,
|
||||
NVEC_KB_EVT = 0x80,
|
||||
NVEC_PS2_EVT
|
||||
} nvec_event;
|
||||
|
||||
typedef enum {
|
||||
NVEC_WAIT,
|
||||
NVEC_READ,
|
||||
NVEC_WRITE
|
||||
} nvec_state;
|
||||
|
||||
struct nvec_msg {
|
||||
unsigned char *data;
|
||||
unsigned short size;
|
||||
unsigned short pos;
|
||||
struct list_head node;
|
||||
};
|
||||
|
||||
struct nvec_subdev {
|
||||
const char *name;
|
||||
void *platform_data;
|
||||
int id;
|
||||
};
|
||||
|
||||
struct nvec_platform_data {
|
||||
int num_subdevs;
|
||||
int i2c_addr;
|
||||
int gpio;
|
||||
int irq;
|
||||
int base;
|
||||
int size;
|
||||
char clock[16];
|
||||
struct nvec_subdev *subdevs;
|
||||
};
|
||||
|
||||
struct nvec_chip {
|
||||
struct device *dev;
|
||||
int gpio;
|
||||
int irq;
|
||||
unsigned char *i2c_regs;
|
||||
nvec_state state;
|
||||
struct atomic_notifier_head notifier_list;
|
||||
struct list_head rx_data, tx_data;
|
||||
struct notifier_block nvec_status_notifier;
|
||||
struct work_struct rx_work, tx_work;
|
||||
struct nvec_msg *rx, *tx;
|
||||
|
||||
/* sync write stuff */
|
||||
struct semaphore sync_write_mutex;
|
||||
struct completion sync_write;
|
||||
u16 sync_write_pending;
|
||||
struct nvec_msg *last_sync_msg;
|
||||
};
|
||||
|
||||
extern void nvec_write_async(struct nvec_chip *nvec, unsigned char *data, short size);
|
||||
|
||||
extern int nvec_register_notifier(struct nvec_chip *nvec,
|
||||
struct notifier_block *nb, unsigned int events);
|
||||
|
||||
extern int nvec_unregister_notifier(struct device *dev,
|
||||
struct notifier_block *nb, unsigned int events);
|
||||
|
||||
const char *nvec_send_msg(unsigned char *src, unsigned char *dst_size, how_care care_resp, void (*rt_handler)(unsigned char *data));
|
||||
|
||||
extern int nvec_ps2(struct nvec_chip *nvec);
|
||||
extern int nvec_kbd_init(struct nvec_chip *nvec);
|
||||
|
||||
#define I2C_CNFG 0x00
|
||||
#define I2C_CNFG_PACKET_MODE_EN (1<<10)
|
||||
#define I2C_CNFG_NEW_MASTER_SFM (1<<11)
|
||||
#define I2C_CNFG_DEBOUNCE_CNT_SHIFT 12
|
||||
|
||||
#define I2C_SL_CNFG 0x20
|
||||
#define I2C_SL_NEWL (1<<2)
|
||||
#define I2C_SL_NACK (1<<1)
|
||||
#define I2C_SL_RESP (1<<0)
|
||||
#define I2C_SL_IRQ (1<<3)
|
||||
#define END_TRANS (1<<4)
|
||||
#define RCVD (1<<2)
|
||||
#define RNW (1<<1)
|
||||
|
||||
#define I2C_SL_RCVD 0x24
|
||||
#define I2C_SL_STATUS 0x28
|
||||
#define I2C_SL_ADDR1 0x2c
|
||||
#define I2C_SL_ADDR2 0x30
|
||||
#define I2C_SL_DELAY_COUNT 0x3c
|
||||
|
||||
#endif
|
|
@ -0,0 +1,122 @@
|
|||
#include <linux/slab.h>
|
||||
#include <linux/input.h>
|
||||
#include <linux/delay.h>
|
||||
#include "nvec-keytable.h"
|
||||
#include "nvec.h"
|
||||
|
||||
#define ACK_KBD_EVENT {'\x05','\xed','\x01'}
|
||||
|
||||
static unsigned char keycodes[ARRAY_SIZE(code_tab_102us)
|
||||
+ ARRAY_SIZE(extcode_tab_us102)];
|
||||
|
||||
struct nvec_keys {
|
||||
struct input_dev *input;
|
||||
struct notifier_block notifier;
|
||||
struct nvec_chip *nvec;
|
||||
};
|
||||
|
||||
static struct nvec_keys keys_dev;
|
||||
|
||||
static int nvec_keys_notifier(struct notifier_block *nb,
|
||||
unsigned long event_type, void *data)
|
||||
{
|
||||
int code, state;
|
||||
unsigned char *msg = (unsigned char *)data;
|
||||
|
||||
if (event_type == NVEC_KB_EVT) {
|
||||
nvec_size _size = (msg[0] & (3 << 5)) >> 5;
|
||||
|
||||
/* power on/off button */
|
||||
if(_size == NVEC_VAR_SIZE)
|
||||
return NOTIFY_STOP;
|
||||
|
||||
if(_size == NVEC_3BYTES)
|
||||
msg++;
|
||||
|
||||
code = msg[1] & 0x7f;
|
||||
state = msg[1] & 0x80;
|
||||
|
||||
input_report_key(keys_dev.input, code_tabs[_size][code], !state);
|
||||
input_sync(keys_dev.input);
|
||||
|
||||
return NOTIFY_STOP;
|
||||
}
|
||||
|
||||
return NOTIFY_DONE;
|
||||
}
|
||||
|
||||
static int nvec_kbd_event(struct input_dev *dev, unsigned int type,
|
||||
unsigned int code, int value)
|
||||
{
|
||||
unsigned char buf[] = ACK_KBD_EVENT;
|
||||
struct nvec_chip *nvec = keys_dev.nvec;
|
||||
|
||||
if(type==EV_REP)
|
||||
return 0;
|
||||
|
||||
if(type!=EV_LED)
|
||||
return -1;
|
||||
|
||||
if(code!=LED_CAPSL)
|
||||
return -1;
|
||||
|
||||
buf[2] = !!value;
|
||||
nvec_write_async(nvec, buf, sizeof(buf));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int __init nvec_kbd_init(struct nvec_chip *nvec)
|
||||
{
|
||||
int i, j, err;
|
||||
struct input_dev *idev;
|
||||
|
||||
j = 0;
|
||||
|
||||
for(i = 0; i < ARRAY_SIZE(code_tab_102us); ++i)
|
||||
keycodes[j++] = code_tab_102us[i];
|
||||
|
||||
for(i = 0; i < ARRAY_SIZE(extcode_tab_us102); ++i)
|
||||
keycodes[j++]=extcode_tab_us102[i];
|
||||
|
||||
idev = input_allocate_device();
|
||||
idev->name = "Tegra nvec keyboard";
|
||||
idev->phys = "i2c3_slave/nvec";
|
||||
idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | BIT_MASK(EV_LED);
|
||||
idev->ledbit[0] = BIT_MASK(LED_CAPSL);
|
||||
idev->event = nvec_kbd_event;
|
||||
idev->keycode = keycodes;
|
||||
idev->keycodesize = sizeof(unsigned char);
|
||||
idev->keycodemax = ARRAY_SIZE(keycodes);
|
||||
|
||||
for( i = 0; i < ARRAY_SIZE(keycodes); ++i)
|
||||
set_bit(keycodes[i], idev->keybit);
|
||||
|
||||
clear_bit(0, idev->keybit);
|
||||
err = input_register_device(idev);
|
||||
if(err)
|
||||
goto fail;
|
||||
|
||||
keys_dev.input = idev;
|
||||
keys_dev.notifier.notifier_call = nvec_keys_notifier;
|
||||
keys_dev.nvec = nvec;
|
||||
nvec_register_notifier(nvec, &keys_dev.notifier, 0);
|
||||
|
||||
/* Enable keyboard */
|
||||
nvec_write_async(nvec, "\x05\xf4", 2);
|
||||
|
||||
/* keyboard reset? */
|
||||
nvec_write_async(nvec, "\x05\x03\x01\x01", 4);
|
||||
nvec_write_async(nvec, "\x05\x04\x01", 3);
|
||||
nvec_write_async(nvec, "\x06\x01\xff\x03", 4);
|
||||
/* FIXME
|
||||
wait until keyboard reset is finished
|
||||
or until we have a sync write */
|
||||
mdelay(1000);
|
||||
|
||||
return 0;
|
||||
|
||||
fail:
|
||||
input_free_device(idev);
|
||||
return err;
|
||||
}
|
|
@ -0,0 +1,418 @@
|
|||
#include <linux/module.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/power_supply.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/workqueue.h>
|
||||
#include <linux/delay.h>
|
||||
#include "nvec.h"
|
||||
|
||||
struct nvec_power
|
||||
{
|
||||
struct notifier_block notifier;
|
||||
struct delayed_work poller;
|
||||
struct nvec_chip *nvec;
|
||||
int on;
|
||||
int bat_present;
|
||||
int bat_status;
|
||||
int bat_voltage_now;
|
||||
int bat_current_now;
|
||||
int bat_current_avg;
|
||||
int time_remain;
|
||||
int charge_full_design;
|
||||
int charge_last_full;
|
||||
int critical_capacity;
|
||||
int capacity_remain;
|
||||
int bat_temperature;
|
||||
int bat_cap;
|
||||
int bat_type_enum;
|
||||
char bat_manu[30];
|
||||
char bat_model[30];
|
||||
char bat_type[30];
|
||||
};
|
||||
|
||||
enum {
|
||||
SLOT_STATUS,
|
||||
VOLTAGE,
|
||||
TIME_REMAINING,
|
||||
CURRENT,
|
||||
AVERAGE_CURRENT,
|
||||
AVERAGING_TIME_INTERVAL,
|
||||
CAPACITY_REMAINING,
|
||||
LAST_FULL_CHARGE_CAPACITY,
|
||||
DESIGN_CAPACITY,
|
||||
CRITICAL_CAPACITY,
|
||||
TEMPERATURE,
|
||||
MANUFACTURER,
|
||||
MODEL,
|
||||
TYPE,
|
||||
};
|
||||
|
||||
enum {
|
||||
AC,
|
||||
BAT,
|
||||
};
|
||||
|
||||
struct bat_response {
|
||||
u8 event_type;
|
||||
u8 length;
|
||||
u8 sub_type;
|
||||
u8 status;
|
||||
union { /* payload */
|
||||
char plc[30];
|
||||
u16 plu;
|
||||
s16 pls;
|
||||
};
|
||||
};
|
||||
|
||||
static struct power_supply nvec_bat_psy;
|
||||
static struct power_supply nvec_psy;
|
||||
|
||||
static int nvec_power_notifier(struct notifier_block *nb,
|
||||
unsigned long event_type, void *data)
|
||||
{
|
||||
struct nvec_power *power = container_of(nb, struct nvec_power, notifier);
|
||||
struct bat_response *res = (struct bat_response *)data;
|
||||
|
||||
if (event_type != NVEC_SYS)
|
||||
return NOTIFY_DONE;
|
||||
|
||||
if(res->sub_type == 0)
|
||||
{
|
||||
if (power->on != res->plu)
|
||||
{
|
||||
power->on = res->plu;
|
||||
power_supply_changed(&nvec_psy);
|
||||
}
|
||||
return NOTIFY_STOP;
|
||||
}
|
||||
return NOTIFY_OK;
|
||||
}
|
||||
|
||||
static const int bat_init[] =
|
||||
{
|
||||
LAST_FULL_CHARGE_CAPACITY, DESIGN_CAPACITY, CRITICAL_CAPACITY,
|
||||
MANUFACTURER, MODEL, TYPE,
|
||||
};
|
||||
|
||||
static void get_bat_mfg_data(struct nvec_power *power)
|
||||
{
|
||||
int i;
|
||||
char buf[] = { '\x02', '\x00' };
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(bat_init); i++)
|
||||
{
|
||||
buf[1] = bat_init[i];
|
||||
nvec_write_async(power->nvec, buf, 2);
|
||||
}
|
||||
}
|
||||
|
||||
static int nvec_power_bat_notifier(struct notifier_block *nb,
|
||||
unsigned long event_type, void *data)
|
||||
{
|
||||
struct nvec_power *power = container_of(nb, struct nvec_power, notifier);
|
||||
struct bat_response *res = (struct bat_response *)data;
|
||||
int status_changed = 0;
|
||||
|
||||
if (event_type != NVEC_BAT)
|
||||
return NOTIFY_DONE;
|
||||
|
||||
switch(res->sub_type)
|
||||
{
|
||||
case SLOT_STATUS:
|
||||
if (res->plc[0] & 1)
|
||||
{
|
||||
if (power->bat_present == 0)
|
||||
{
|
||||
status_changed = 1;
|
||||
get_bat_mfg_data(power);
|
||||
}
|
||||
|
||||
power->bat_present = 1;
|
||||
|
||||
switch ((res->plc[0] >> 1) & 3)
|
||||
{
|
||||
case 0:
|
||||
power->bat_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
|
||||
break;
|
||||
case 1:
|
||||
power->bat_status = POWER_SUPPLY_STATUS_CHARGING;
|
||||
break;
|
||||
case 2:
|
||||
power->bat_status = POWER_SUPPLY_STATUS_DISCHARGING;
|
||||
break;
|
||||
default:
|
||||
power->bat_status = POWER_SUPPLY_STATUS_UNKNOWN;
|
||||
}
|
||||
} else {
|
||||
if (power->bat_present == 1)
|
||||
status_changed = 1;
|
||||
|
||||
power->bat_present = 0;
|
||||
power->bat_status = POWER_SUPPLY_STATUS_UNKNOWN;
|
||||
}
|
||||
power->bat_cap = res->plc[1];
|
||||
if (status_changed)
|
||||
power_supply_changed(&nvec_bat_psy);
|
||||
break;
|
||||
case VOLTAGE:
|
||||
power->bat_voltage_now = res->plu * 1000;
|
||||
break;
|
||||
case TIME_REMAINING:
|
||||
power->time_remain = res->plu * 3600;
|
||||
break;
|
||||
case CURRENT:
|
||||
power->bat_current_now = res->pls * 1000;
|
||||
break;
|
||||
case AVERAGE_CURRENT:
|
||||
power->bat_current_avg = res->pls * 1000;
|
||||
break;
|
||||
case CAPACITY_REMAINING:
|
||||
power->capacity_remain = res->plu * 1000;
|
||||
break;
|
||||
case LAST_FULL_CHARGE_CAPACITY:
|
||||
power->charge_last_full = res->plu * 1000;
|
||||
break;
|
||||
case DESIGN_CAPACITY:
|
||||
power->charge_full_design = res->plu * 1000;
|
||||
break;
|
||||
case CRITICAL_CAPACITY:
|
||||
power->critical_capacity = res->plu * 1000;
|
||||
break;
|
||||
case TEMPERATURE:
|
||||
power->bat_temperature = res->plu - 2732;
|
||||
break;
|
||||
case MANUFACTURER:
|
||||
memcpy(power->bat_manu, &res->plc, res->length-2);
|
||||
power->bat_model[res->length-2] = '\0';
|
||||
break;
|
||||
case MODEL:
|
||||
memcpy(power->bat_model, &res->plc, res->length-2);
|
||||
power->bat_model[res->length-2] = '\0';
|
||||
break;
|
||||
case TYPE:
|
||||
memcpy(power->bat_type, &res->plc, res->length-2);
|
||||
power->bat_type[res->length-2] = '\0';
|
||||
/* this differs a little from the spec
|
||||
fill in more if you find some */
|
||||
if (!strncmp(power->bat_type, "Li", 30))
|
||||
power->bat_type_enum = POWER_SUPPLY_TECHNOLOGY_LION;
|
||||
else
|
||||
power->bat_type_enum = POWER_SUPPLY_TECHNOLOGY_UNKNOWN;
|
||||
break;
|
||||
default:
|
||||
return NOTIFY_STOP;
|
||||
}
|
||||
|
||||
return NOTIFY_STOP;
|
||||
}
|
||||
|
||||
static int nvec_power_get_property(struct power_supply *psy,
|
||||
enum power_supply_property psp,
|
||||
union power_supply_propval *val)
|
||||
{
|
||||
struct nvec_power *power = dev_get_drvdata(psy->dev->parent);
|
||||
switch (psp) {
|
||||
case POWER_SUPPLY_PROP_ONLINE:
|
||||
val->intval = power->on;
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int nvec_battery_get_property(struct power_supply *psy,
|
||||
enum power_supply_property psp,
|
||||
union power_supply_propval *val)
|
||||
{
|
||||
struct nvec_power *power = dev_get_drvdata(psy->dev->parent);
|
||||
|
||||
switch(psp)
|
||||
{
|
||||
case POWER_SUPPLY_PROP_STATUS:
|
||||
val->intval = power->bat_status;
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_CAPACITY:
|
||||
val->intval = power->bat_cap;
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_PRESENT:
|
||||
val->intval = power->bat_present;
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
|
||||
val->intval = power->bat_voltage_now;
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_CURRENT_NOW:
|
||||
val->intval = power->bat_current_now;
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_CURRENT_AVG:
|
||||
val->intval = power->bat_current_avg;
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW:
|
||||
val->intval = power->time_remain;
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
|
||||
val->intval = power->charge_full_design;
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_CHARGE_FULL:
|
||||
val->intval = power->charge_last_full;
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_CHARGE_EMPTY:
|
||||
val->intval = power->critical_capacity;
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_CHARGE_NOW:
|
||||
val->intval = power->capacity_remain;
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_TEMP:
|
||||
val->intval = power->bat_temperature;
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_MANUFACTURER:
|
||||
val->strval = power->bat_manu;
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_MODEL_NAME:
|
||||
val->strval = power->bat_model;
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_TECHNOLOGY:
|
||||
val->intval = power->bat_type_enum;
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static enum power_supply_property nvec_power_props[] = {
|
||||
POWER_SUPPLY_PROP_ONLINE,
|
||||
};
|
||||
|
||||
static enum power_supply_property nvec_battery_props[] = {
|
||||
POWER_SUPPLY_PROP_STATUS,
|
||||
POWER_SUPPLY_PROP_PRESENT,
|
||||
POWER_SUPPLY_PROP_CAPACITY,
|
||||
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
||||
POWER_SUPPLY_PROP_CURRENT_NOW,
|
||||
#ifdef EC_FULL_DIAG
|
||||
POWER_SUPPLY_PROP_CURRENT_AVG,
|
||||
POWER_SUPPLY_PROP_TEMP,
|
||||
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
|
||||
#endif
|
||||
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
|
||||
POWER_SUPPLY_PROP_CHARGE_FULL,
|
||||
POWER_SUPPLY_PROP_CHARGE_EMPTY,
|
||||
POWER_SUPPLY_PROP_CHARGE_NOW,
|
||||
POWER_SUPPLY_PROP_MANUFACTURER,
|
||||
POWER_SUPPLY_PROP_MODEL_NAME,
|
||||
POWER_SUPPLY_PROP_TECHNOLOGY,
|
||||
};
|
||||
|
||||
static char *nvec_power_supplied_to[] = {
|
||||
"battery",
|
||||
};
|
||||
|
||||
static struct power_supply nvec_bat_psy = {
|
||||
.name = "battery",
|
||||
.type = POWER_SUPPLY_TYPE_BATTERY,
|
||||
.properties = nvec_battery_props,
|
||||
.num_properties = ARRAY_SIZE(nvec_battery_props),
|
||||
.get_property = nvec_battery_get_property,
|
||||
};
|
||||
|
||||
static struct power_supply nvec_psy = {
|
||||
.name = "ac",
|
||||
.type = POWER_SUPPLY_TYPE_MAINS,
|
||||
.supplied_to = nvec_power_supplied_to,
|
||||
.num_supplicants = ARRAY_SIZE(nvec_power_supplied_to),
|
||||
.properties = nvec_power_props,
|
||||
.num_properties = ARRAY_SIZE(nvec_power_props),
|
||||
.get_property = nvec_power_get_property,
|
||||
};
|
||||
|
||||
static int counter = 0;
|
||||
static int const bat_iter[] =
|
||||
{
|
||||
SLOT_STATUS, VOLTAGE, CURRENT, CAPACITY_REMAINING,
|
||||
#ifdef EC_FULL_DIAG
|
||||
AVERAGE_CURRENT, TEMPERATURE, TIME_REMAINING,
|
||||
#endif
|
||||
};
|
||||
|
||||
static void nvec_power_poll(struct work_struct *work)
|
||||
{
|
||||
char buf[] = { '\x01', '\x00' };
|
||||
struct nvec_power *power = container_of(work, struct nvec_power,
|
||||
poller.work);
|
||||
|
||||
if (counter >= ARRAY_SIZE(bat_iter))
|
||||
counter = 0;
|
||||
|
||||
/* AC status via sys req */
|
||||
nvec_write_async(power->nvec, buf, 2);
|
||||
msleep(100);
|
||||
|
||||
/* select a battery request function via round robin
|
||||
doing it all at once seems to overload the power supply */
|
||||
buf[0] = '\x02'; /* battery */
|
||||
buf[1] = bat_iter[counter++];
|
||||
nvec_write_async(power->nvec, buf, 2);
|
||||
|
||||
// printk("%02x %02x\n", buf[0], buf[1]);
|
||||
|
||||
schedule_delayed_work(to_delayed_work(work), msecs_to_jiffies(5000));
|
||||
};
|
||||
|
||||
static int __devinit nvec_power_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct power_supply *psy;
|
||||
struct nvec_power *power = kzalloc(sizeof(struct nvec_power), GFP_NOWAIT);
|
||||
struct nvec_chip *nvec = dev_get_drvdata(pdev->dev.parent);
|
||||
|
||||
dev_set_drvdata(&pdev->dev, power);
|
||||
power->nvec = nvec;
|
||||
|
||||
switch (pdev->id) {
|
||||
case AC:
|
||||
psy = &nvec_psy;
|
||||
|
||||
power->notifier.notifier_call = nvec_power_notifier;
|
||||
|
||||
INIT_DELAYED_WORK(&power->poller, nvec_power_poll);
|
||||
schedule_delayed_work(&power->poller, msecs_to_jiffies(5000));
|
||||
break;
|
||||
case BAT:
|
||||
psy = &nvec_bat_psy;
|
||||
|
||||
power->notifier.notifier_call = nvec_power_bat_notifier;
|
||||
break;
|
||||
default:
|
||||
kfree(power);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
nvec_register_notifier(nvec, &power->notifier, NVEC_SYS);
|
||||
|
||||
if (pdev->id == BAT)
|
||||
get_bat_mfg_data(power);
|
||||
|
||||
return power_supply_register(&pdev->dev, psy);
|
||||
}
|
||||
|
||||
static struct platform_driver nvec_power_driver = {
|
||||
.probe = nvec_power_probe,
|
||||
// .remove = __devexit_p(nvec_power_remove),
|
||||
.driver = {
|
||||
.name = "nvec-power",
|
||||
.owner = THIS_MODULE,
|
||||
}
|
||||
};
|
||||
|
||||
static int __init nvec_power_init(void)
|
||||
{
|
||||
return platform_driver_register(&nvec_power_driver);
|
||||
}
|
||||
|
||||
module_init(nvec_power_init);
|
||||
|
||||
MODULE_AUTHOR("Ilya Petrov <ilya.muromec@gmail.com>");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DESCRIPTION("NVEC battery and AC driver");
|
||||
MODULE_ALIAS("platform:nvec-power");
|
|
@ -0,0 +1,103 @@
|
|||
#include <linux/slab.h>
|
||||
#include <linux/serio.h>
|
||||
#include <linux/delay.h>
|
||||
#include "nvec.h"
|
||||
|
||||
#define START_STREAMING {'\x06','\x03','\x01'}
|
||||
#define STOP_STREAMING {'\x06','\x04'}
|
||||
#define SEND_COMMAND {'\x06','\x01','\xf4','\x01'}
|
||||
|
||||
struct nvec_ps2
|
||||
{
|
||||
struct serio *ser_dev;
|
||||
struct notifier_block notifier;
|
||||
struct nvec_chip *nvec;
|
||||
};
|
||||
|
||||
static struct nvec_ps2 ps2_dev;
|
||||
|
||||
static int ps2_startstreaming(struct serio *ser_dev)
|
||||
{
|
||||
unsigned char buf[] = START_STREAMING;
|
||||
nvec_write_async(ps2_dev.nvec, buf, sizeof(buf));
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void ps2_stopstreaming(struct serio *ser_dev)
|
||||
{
|
||||
unsigned char buf[] = STOP_STREAMING;
|
||||
nvec_write_async(ps2_dev.nvec, buf, sizeof(buf));
|
||||
}
|
||||
|
||||
/* is this really needed?
|
||||
static void nvec_resp_handler(unsigned char *data) {
|
||||
serio_interrupt(ser_dev, data[4], 0);
|
||||
}
|
||||
*/
|
||||
|
||||
static int ps2_sendcommand(struct serio *ser_dev, unsigned char cmd)
|
||||
{
|
||||
unsigned char buf[] = SEND_COMMAND;
|
||||
|
||||
buf[2] = cmd & 0xff;
|
||||
|
||||
dev_dbg(&ser_dev->dev, "Sending ps2 cmd %02x\n", cmd);
|
||||
nvec_write_async(ps2_dev.nvec, buf, sizeof(buf));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int nvec_ps2_notifier(struct notifier_block *nb,
|
||||
unsigned long event_type, void *data)
|
||||
{
|
||||
int i;
|
||||
unsigned char *msg = (unsigned char *)data;
|
||||
|
||||
switch (event_type) {
|
||||
case NVEC_PS2_EVT:
|
||||
serio_interrupt(ps2_dev.ser_dev, msg[2], 0);
|
||||
return NOTIFY_STOP;
|
||||
|
||||
case NVEC_PS2:
|
||||
if (msg[2] == 1)
|
||||
for(i = 0; i < (msg[1] - 2); i++)
|
||||
serio_interrupt(ps2_dev.ser_dev, msg[i+4], 0);
|
||||
else if (msg[1] != 2) /* !ack */
|
||||
{
|
||||
printk("nvec_ps2: unhandled mouse event ");
|
||||
for(i = 0; i <= (msg[1]+1); i++)
|
||||
printk("%02x ", msg[i]);
|
||||
printk(".\n");
|
||||
}
|
||||
|
||||
return NOTIFY_STOP;
|
||||
}
|
||||
|
||||
return NOTIFY_DONE;
|
||||
}
|
||||
|
||||
|
||||
int __init nvec_ps2(struct nvec_chip *nvec)
|
||||
{
|
||||
struct serio *ser_dev = kzalloc(sizeof(struct serio), GFP_KERNEL);
|
||||
|
||||
ser_dev->id.type=SERIO_8042;
|
||||
ser_dev->write=ps2_sendcommand;
|
||||
ser_dev->open=ps2_startstreaming;
|
||||
ser_dev->close=ps2_stopstreaming;
|
||||
|
||||
strlcpy(ser_dev->name, "NVEC PS2", sizeof(ser_dev->name));
|
||||
strlcpy(ser_dev->phys, "NVEC I2C slave", sizeof(ser_dev->phys));
|
||||
|
||||
ps2_dev.ser_dev = ser_dev;
|
||||
ps2_dev.notifier.notifier_call = nvec_ps2_notifier;
|
||||
ps2_dev.nvec = nvec;
|
||||
nvec_register_notifier(nvec, &ps2_dev.notifier, 0);
|
||||
|
||||
serio_register_port(ser_dev);
|
||||
|
||||
/* mouse reset */
|
||||
nvec_write_async(nvec, "\x06\x01\xff\x03", 4);
|
||||
|
||||
return 0;
|
||||
}
|
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