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9c607005c5
This function is already doing a fuzzy match, since there are no guarantees that a given label is unique. Ignoring case makes it much easier to catch "Volume down" or "Volume Down" in board-agnostic code. Tested-by: Danila Tikhonov <danila@jiaxyga.com> # google-sunfish Tested-by: Jens Reidel <adrian@mainlining.org> # xiaomi-davinci Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250331-qcom-phones-v4-6-f52e57d3b8c6@linaro.org Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
74 lines
1.5 KiB
C
74 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2020 Philippe Reynes <philippe.reynes@softathome.com>
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*
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* Based on led-uclass.c
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*/
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#define LOG_CATEGORY UCLASS_BUTTON
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#include <button.h>
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#include <dm.h>
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#include <dm/uclass-internal.h>
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#include <dt-bindings/input/linux-event-codes.h>
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int button_get_by_label(const char *label, struct udevice **devp)
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{
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struct udevice *dev;
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struct uclass *uc;
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uclass_id_foreach_dev(UCLASS_BUTTON, dev, uc) {
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struct button_uc_plat *uc_plat = dev_get_uclass_plat(dev);
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/* Ignore the top-level button node */
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if (uc_plat->label && !strcasecmp(label, uc_plat->label))
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return uclass_get_device_tail(dev, 0, devp);
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}
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return -ENODEV;
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}
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enum button_state_t button_get_state(struct udevice *dev)
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{
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struct button_ops *ops = button_get_ops(dev);
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if (!ops->get_state)
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return -ENOSYS;
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return ops->get_state(dev);
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}
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static int button_remap_phone_keys(int code)
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{
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switch (code) {
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case KEY_VOLUMEUP:
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return KEY_UP;
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case KEY_VOLUMEDOWN:
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return KEY_DOWN;
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case KEY_POWER:
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return KEY_ENTER;
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default:
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return code;
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}
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}
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int button_get_code(struct udevice *dev)
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{
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struct button_ops *ops = button_get_ops(dev);
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int code;
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if (!ops->get_code)
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return -ENOSYS;
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code = ops->get_code(dev);
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if (CONFIG_IS_ENABLED(BUTTON_REMAP_PHONE_KEYS))
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return button_remap_phone_keys(code);
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else
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return code;
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}
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UCLASS_DRIVER(button) = {
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.id = UCLASS_BUTTON,
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.name = "button",
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.per_device_plat_auto = sizeof(struct button_uc_plat),
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};
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