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path: root/drivers/input/input.c
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* Move console definitions into a new console.h fileSimon Glass2015-11-19-0/+1
| | | | | | | | The console includes a global variable and several functions that are only used by a small subset of U-Boot files. Before adding more functions, move the definitions into their own header file. Signed-off-by: Simon Glass <sjg@chromium.org>
* input: Ban digit numbers if 'Num Lock' is not onBin Meng2015-11-19-0/+6
| | | | | | | | When 'Num Lock' is not on, we should not send these digit numbers (0-9 and dot) to the output buffer. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* input: Change LED state bits to conform i8042 compatible keyboardBin Meng2015-11-19-3/+3
| | | | | | | | | | | | When sending LED update command to an i8042 compatible keyboard, bit1 is 'Num Lock' and bit2 is 'Caps Lock' in the data byte. But input library defines bit1 as 'Caps Lock' and bit2 as 'Num Lock'. This causes a wrong LED to be set on an i8042 compatible keyboard. Change the LED state bits to be i8042 compatible, and change the keyboard flags as well. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* input: Call keyboard's update_leds() method when the LEDs changeBin Meng2015-11-19-0/+15
| | | | | | | | | | We should request keyboard to turn on/off its LED when detecting any changes on the LEDs. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Minor changes to allow this to build without CONFIG_DM_KEYBOARD: Signed-off-by: Simon Glass <sjg@chromium.org>
* input: Save keyboard's LED state to correct placeBin Meng2015-11-19-1/+1
| | | | | | | | Currently keyboard's LED state is wrongly saved to config->leds in process_modifier(). It should really be config->flags. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* input: Allow updating of keyboard LEDsSimon Glass2015-11-19-0/+9
| | | | | | | | Add a function which returns a new keyboard LED value when the LEDs need updating. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* input: Handle caps lockSimon Glass2015-11-19-5/+8
| | | | | | | | | When caps lock is enabled we should convert lower case to upper case. Add this to the input key processing so that caps lock works correctly. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
* input: Adjust structure of code in process_modifier()Simon Glass2015-11-19-13/+14
| | | | | | | | Move all the '!release' code into one block so that it is clear that it only applies on key release. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* input: Support the German keymapSimon Glass2015-11-19-12/+97
| | | | | | | | Add support for the German keymap, taken from i8042.c. This can be selected when the input library it initialised. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* input: Allow repeat filtering to be disabledSimon Glass2015-11-19-2/+7
| | | | | | | | | | | | | Generally the input library handles processing of a list of scanned keys. Repeated keys need to be generated based on a timer in this case, since all that is provided is a list of keys current depressed. Keyboards which do their own scanning will resend codes when they want to inject a repeating key. Provide a function which tells the input library to accept repeating keys and not to try to second-guess the caller. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* input: Add a function to add a keycode to the existing setSimon Glass2015-11-19-4/+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>
* input: Add a few more keyboard keycodesSimon Glass2015-11-19-3/+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>
* input: Correct keycode for Ctrl-YSimon Glass2015-11-19-1/+1
| | | | | | This code is currently incorrect, perhaps due to a typo. Fix it. Signed-off-by: Simon Glass <sjg@chromium.org>
* input: Add the keycode translation tables separatelySimon Glass2015-11-19-9/+17
| | | | | | | | | 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>
* input: Return -ENOSPC when there is not spaceSimon Glass2015-11-19-1/+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>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-17/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* drivers/input/input.c: sparse fixKim Phillips2012-11-04-1/+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>
* input: Add ANSI 3.64 escape sequence generation.Hung-Te Lin2012-10-19-15/+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>
* input: Separate out keyboard repeat/delay from initSimon Glass2012-10-15-4/+9
| | | | | | | | | | | 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>
* input: Add generic keyboard input handlerSimon Glass2012-05-15-0/+430
Add a module which understands converting key codes (or scan codes) to ASCII characters. It includes FIFO support and can call back to drivers to read new characters when its FIFO is empty. Keycode maps are provided for un-modified, shift and ctrl keys. The plan is to use this module where such mapping is required. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
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