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path: root/drivers/input
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2015-11-20input: Add a function to add a keycode to the existing setSimon Glass1-4/+42
Most keyboards can be scanned to produce a list of the keycodes which are depressed. With the i8042 keyboard this scanning is done internally and only the processed results are returned. In this case, when a key is pressed, a 'make' code is sent. When the key is released a 'break' code is sent. This means that the driver needs to keep track of which keys are pressed. It also means that any protocol error can lead to stuck keys. In order to support this type of keyboard, add a function when can be used to provide a single keycode and either add it to the list of what is pressed or remove it from the list. Then the normal input_send_keycodes() function can be used to actually do the decoding work. Add debugging to display the ASCII characters written to the input queue also. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-11-20input: Add a few more keyboard keycodesSimon Glass1-3/+3
The slash and * are missing from the keycode tables. Add these so that these keypad keys can be used. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-11-20input: Correct keycode for Ctrl-YSimon Glass1-1/+1
This code is currently incorrect, perhaps due to a typo. Fix it. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-11-20i8042: Adjust keyboard init to assume successSimon Glass1-10/+9
Modify i8042_kbd_init() so that the normal pass is sucessful init and failure exits early. This will make the code easier to extend and is easier to read. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-11-20i8042: Adjust kbd_reset() to collect all failuresSimon Glass1-5/+8
Rather than lots of 'return' statements, use goto to a single return. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-11-20i8042: Use functions to handle register accessSimon Glass1-31/+44
At present the register access in kbd_reset() is quite primitive. This makes it hard to follow. Create functions to read and write data, both to a single register, and via the command/data approach. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-on: Intel Crown Bay and QEMU Tested-by: Bin Meng <bmeng.cn@gmail.com>
2015-11-20video: Drop unused console functionsSimon Glass1-23/+0
CONFIG_CONSOLE_CURSOR, CONFIG_SYS_CONSOLE_BLINK_COUNT and CONFIG_CONSOLE_TIME are not used by any board. The implementation is not great and stands in the way of a refactor of i8042. Drop these for now. They can be re-introduced quite easily later, perhaps with driver-model real-time-clock (RTC) support. When reintroducing, it might be useful to make a few changes: - Blink time would be more useful than blink count - The confusing #ifdefs should be avoided - The time functions should support driver model - It would be best keyed off console_tstc() or some similar idle loop rather than a particular input driver (i8042 in this case) Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-11-20dm: cros_ec: Convert cros_ec keyboard driver to driver modelSimon Glass1-90/+58
Adjust the cros_ec keyboard driver to support driver model. Make this the default for all Exynos boards so that those that use a keyboard will build correctly with this driver. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-11-20dm: tegra: Convert keyboard driver to driver modelSimon Glass1-132/+111
Adjust the tegra keyboard driver to support driver model, using the new uclass. Make this the default for all Tegra boards so that those that use a keyboard will build correctly with this driver. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-11-20cros_ec: Use udevice instead of cros_ec_dev for keyboard functionsSimon Glass1-2/+2
In preparation for converting the cros_ec keyboard driver to driver model, adjust the cros_ec functions it will use to use a normal struct udevice. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-11-20input: Add the keycode translation tables separatelySimon Glass3-9/+19
Require the caller to add the keycode translation tables separately so that it can select which ones to use. In a later patch we will add the option to add German tables. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-11-20input: Return -ENOSPC when there is not spaceSimon Glass1-1/+2
Return a useful error instead of -1 when something goes wrong. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-11-20dm: input: Create a keyboard uclassSimon Glass3-0/+102
Add a uclass for keyboard input, mirroring the existing stdio methods. This is enabled by a new CONFIG_DM_KEYBOARD option. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Marek Vasut <marex@denx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-11-05video: Drop DEV_FLAGS_SYSTEM flagBin Meng3-3/+3
DEV_FLAGS_SYSTEM does not have any actual meaning, hence drop it. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2015-08-26x86: i8042: Correctly initialize the controllerBin Meng1-22/+21
The existing i8042 keyboard controller driver has some issues. First of all, it does not issue a self-test command (0xaa) to the controller at the very beginning. Without this, the controller does not respond to any command at all. Secondly, it initializes the configuration byte register to turn on the keyboard's interrupt, as U-Boot does not normally allow interrupts to be processed. Finally, at the end of the initialization routine, it wrongly sets the controller to disable all interfaces including both keyboard and mouse. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-08-26x86: i8042: Clean up the driver per coding conventionBin Meng1-112/+118
- Rename CamelCase variables to conform U-Boot coding convention - Rename wait_until_kbd_output_full() to kbd_output_full() - Change to use macros for i8042 command and control register bits Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-08-26x86: i8042: Reorder static functionsBin Meng1-268/+222
Reorder those static function so that their declarations can be removed. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-08-26x86: i8042: Remove unused codesBin Meng1-17/+0
Remove unused CONFIG_USE_CPCIDVI wrapped codes. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-08-18of: clean up OF_CONTROL ifdef conditionalsMasahiro Yamada2-2/+2
We have flipped CONFIG_SPL_DISABLE_OF_CONTROL. We have cleansing devices, $(SPL_) and CONFIG_IS_ENABLED(), so we are ready to clear away the ugly logic in include/fdtdec.h: #ifdef CONFIG_OF_CONTROL # if defined(CONFIG_SPL_BUILD) && !defined(SPL_OF_CONTROL) # define OF_CONTROL 0 # else # define OF_CONTROL 1 # endif #else # define OF_CONTROL 0 #endif Now CONFIG_IS_ENABLED(OF_CONTROL) is the substitute. It refers to CONFIG_OF_CONTROL for U-boot proper and CONFIG_SPL_OF_CONTROL for SPL. Also, we no longer have to cancel CONFIG_OF_CONTROL in include/config_uncmd_spl.h and scripts/Makefile.spl. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2015-08-13input: twl4030: Keypad scan and inputPaul Kocialkowski1-0/+39
This allows scanning the twl4030 keypad, storing the result in a 64-byte long matrix with the twl4030_keypad_scan function. Detecting a key at a given column and row is made easier with the twl4030_keypad_key function. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Reviewed-by: Tom Rini <trini@konsulko.com>
2015-08-13input: TWL4030 input support for power button, USB and chargerPaul Kocialkowski2-0/+50
This adds support for detecting a few inputs exported by the TWL4030. Currently-supported inputs are the power button, USB and charger presence. Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
2015-04-18i8042: Add keyboard enable logic in kbd_reset()Simon Glass1-0/+7
This code appears to be missing a piece that is needed on some keyboards to enable the keyboard. Add this in. This makes the keyboard work correctly on chromebook_link. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-18cros_ec: exynos: Match up device tree with kernel versionSimon Glass1-1/+1
The U-Boot device trees are slightly different in a few places. Adjust them to remove most of the differences. Note that U-Boot does not support the concept of interrupts as distinct from GPIOs, so this difference remains. For sandbox, use the same keyboard file as for ARM boards and drop the host emulation bus which seems redundant. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-02-19dm: cros_ec: Convert to KconfigSimon Glass1-0/+6
Since both I2C and SPI are converted to Kconfig, we can convert cros_ec to Kconfig for these buses. LPC will need to wait until driver mode PCI is available. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-01-06cros-ec-keyboard: Synchronize DT binding from linuxSjoerd Simons1-10/+6
The ChromeOS EC keyboard is used by various different chromebooks. Peach pi being the third board in the u-boot tree to use it (snow and peach pit the other two). Rather then embedding the same big DT node in the peach-pi DT again, copy the dtsi snippit & bindings documentation from linux and include it in all 3 boards. This slightly changes the dt bindings in u-boot: * google,key-rows becomes keypad,num-rows * google,key-colums becomes keypad,num-colums * google,repeat-delay-ms and google,repeat-rate-ms are no longer used and replaced by hardcoded values (similar to tegra kbc) Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
2014-10-25tegra: make local functions staticJeroen Hofstee1-1/+1
Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
2014-09-25kconfig: add blank Kconfig filesMasahiro Yamada1-0/+0
This would be useful to start moving various config options. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
2014-07-23stdio: Pass device pointer to stdio methodsSimon Glass4-10/+10
At present stdio device functions do not get any clue as to which stdio device is being acted on. Some implementations go to great lengths to work around this, such as defining a whole separate set of functions for each possible device. For driver model we need to associate a stdio_dev with a device. It doesn't seem possible to continue with this work-around approach. Instead, add a stdio_dev pointer to each of the stdio member functions. Note: The serial drivers have the same problem, but it is not strictly necessary to fix that to get driver model running. Also, if we convert serial over to driver model the problem will go away. Code size increases by 244 bytes for Thumb2 and 428 for PowerPC. 22: stdio: Pass device pointer to stdio methods arm: (for 2/2 boards) all +244.0 bss -4.0 text +248.0 powerpc: (for 1/1 boards) all +428.0 text +428.0 Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Marek Vasut <marex@denx.de> Reviewed-by: Marek Vasut <marex@denx.de>
2014-07-23stdio: Remove redundant code around stdio_register() callsSimon Glass1-2/+0
There is no point in setting a structure's memory to NULL when it has already been zeroed with memset(). Also, there is no need to create a stub function for stdio to call - if the function is NULL it will not be called. This is a clean-up, with no change in functionality. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Marek Vasut <marex@denx.de>
2014-03-18cros_ec: Support systems with no EC interruptSimon Glass1-4/+30
Some systems do not have an EC interrupt. Rather than assuming that the interrupt is always present, and hanging forever waiting for more input, handle the missing interrupt. This works by reading key scans only until we get an identical one. This means the EC keyscan FIFO is empty. Tested-by: Che-Liang Chiou <clchiou@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2013-10-31drivers: convert makefiles to Kbuild styleMasahiro Yamada1-29/+7
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-10-15Coding Style cleanup: remove trailing white spaceWolfgang Denk1-1/+1
Signed-off-by: Wolfgang Denk <wd@denx.de>
2013-07-24Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk6-101/+6
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2013-06-26cros: adds cros_ec keyboard driverHung-ying Tyan2-0/+262
This patch adds the driver for keyboard that's controlled by ChromeOS EC. Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Vincent Palatin <vpalatin@chromium.org> Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Acked-by: Simon Glass <sjg@chromium.org>
2013-06-06input: Finish simplifing key_matrix_decode_fdt()Stephen Warren1-2/+4
[trini: Applied v1 of the series rather than v2, this commit is the delta from v1 to v2] Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Rini <trini@ti.com>
2013-06-05input: simplify key_matrix_decode_fdt()Stephen Warren1-40/+26
We know the exact property names that the code wants to process. Look these up directly with fdt_get_property(), rather than iterating over all properties within the node, and checking each property's name, in a convoluted fashion, against the expected name. Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-06-05input: fix unaligned access in key_matrix_decode_fdt()Stephen Warren1-1/+1
Initialized character arrays on the stack can cause gcc to emit code that performs unaligned accessess. Make the data static to avoid this. Note that the unaligned accesses are made when copying data to prefix[] on the stack from .rodata. By making the data static, the copy is completely avoided. All explicitly written code treats the data as u8[], so will never cause any unaligned accesses. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2013-02-04ppc: Move mpc5xxx clocks to arch_global_dataSimon Glass1-1/+1
Move ipb_clk and pci_clk into arch_global_data and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org>
2012-11-19tegra: add CONSOLE_MUX support to tegra-kbcAllen Martin1-1/+17
Add support for CONSOLE_MUX to tegra-kbc driver. This requires adding a flag to struct keyb to know the driver has already been initialized so if we try to initialize it again we can just return success. Also call into iomux_doenv() from drv_keyboard_init to re-evaluate the stdin string. Signed-off-by: Allen Martin <amartin@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-11-04drivers/input/input.c: sparse fixKim Phillips1-1/+1
input.c:97:5: warning: symbol 'input_queue_ascii' was not declared. Should it be Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Acked-by: Simon Glass <sjg@chromium.org>
2012-10-20input: Add ANSI 3.64 escape sequence generation.Hung-Te Lin1-15/+87
To support Non-ASCII keys (ex, Fn, PgUp/Dn, arrow keys, ...), we need to translate key code into escape sequence. (Updated by sjg@chromium.org to move away from a function to store keycodes, so we can easily record how many were sent. We now need to return this from input_send_keycodes() so we know whether keys were generated.) Signed-off-by: Hung-Te Lin <hungte@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-20input: Fix i8042 keyboard resetMarc Jones1-5/+27
The i8042 keyboard reset was not checking the results of the output buffer after the reset command. This can jam up some KBC/keyboards. Also, remove a write to the wrong register and the CONFIG setting around the incorrect write. Signed-off-by: Marc Jones <marc.jones@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-20input: i8042: Provide feature to disable keyboard before booting kernelLouis Yung-Chieh Lo1-0/+38
The BIOS leaves the keyboard enabled during boot time so that any keystroke would interfere kernel driver initialization. Add a way to disable the keyboard to make sure no scancode will be generated during the boot time. Note that the keyboard will be re-enabled again after the kernel driver is up. This code can be called from the board functions. Signed-off-by: Louis Yung-Chieh Lo <yjlou@chromium.org> Signed-off-by: Louis Yung-Chieh Lo <yjlou@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-20input: Provide a board specific mechanism to decide whether to skip i8042 initGabe Black1-1/+12
This change adds a board overridable function which can be used to decide whether or not to initialize the i8042 keyboard controller. On systems where it isn't actually connected to anything, this can save a significant amount of boot time. On Stumpy, this saves about 200ms on boot. Signed-off-by: Gabe Black <gabeblack@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-20input: Use finer grain udelays while waitng for the i8042 keyboard buffer to ↵Gabe Black1-6/+3
empty On x86, the i8042 keyboard controller driver frequently waits for the keyboard input buffer to be empty to make sure the controller has had a chance to process the data it was given. The way the delay loop was structured, if the controller hadn't cleared the corresponding status bit immediately, it would wait 1ms before checking again. If the keyboard responded quickly but not instantly, the driver would still wait a full 1ms when perhaps 1us would have been sufficient. Because udelay is a busy wait anyway, this change decreases the delay between checks to 1us. Also, this change gets rid of a hardcoded 250ms delay. On Stumpy, this saves 100-150ms during boot. Signed-off-by: Gabe Black <gabeblack@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-15Tegra20: Move some include files to arch-tegra for sharing with Tegra30Tom Warren1-1/+1
The move is pretty straight-forward. ap20.h and tegra20.h were renamed to ap.h and tegra.h. Some files remain in arch-tegra20 but 'include' a file in 'arch-tegra' with #defines & structs that will be common between T20 and T30 HW. HW-specific #defines, etc. stay in the 'arch-tegra20' 'root' file. All boards build OK w/MAKEALL -s tegra20. Checkpatch.pl runs clean. Seaboard works OK. Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-10-15input: Add debugging for key matrix key codesSimon Glass1-0/+2
These are read from the fdt - add a debug feature to display the mapping on start-up. See that we get debug output listing the keycodes Signed-off-by: Simon Glass <sjg@chromium.org>
2012-10-15input: Allow key ghosting filter to be disabledSimon Glass2-3/+8
Some keyboards will not need a key ghosting filter, so make this feature optional. Signed-off-by: Simon Glass <sjg@chromium.org>
2012-10-15input: Separate out keyboard repeat/delay from initSimon Glass2-6/+12
It is inconvenient to have to specify the keyboard repeat and delay at init time if it is not yet available, so move this into a separate function. Some drivers will want to do this when their keyboard init routine is actually called. Signed-off-by: Simon Glass <sjg@chromium.org>
2012-10-15input: Correct key_matrix fdt decodingSimon Glass1-4/+7
Some issues with this were not addressed in the previous series. Fix up the binding decoding to deal with what is actually expected in the fdt. This corrects the broken keyboard on seaboard. Signed-off-by: Simon Glass <sjg@chromium.org>
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