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56 lines
1.3 KiB
56 lines
1.3 KiB
/* |
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* Atheros AR71XX/AR724X/AR913X GPIO button support |
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* |
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* Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> |
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* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> |
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* |
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* This program is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 as published |
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* by the Free Software Foundation. |
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*/ |
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#include "linux/init.h" |
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#include "linux/slab.h" |
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#include <linux/platform_device.h> |
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#include "dev-gpio-buttons.h" |
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void __init ath79_register_gpio_keys_polled(int id, |
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unsigned poll_interval, |
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unsigned nbuttons, |
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struct gpio_keys_button *buttons) |
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{ |
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struct platform_device *pdev; |
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struct gpio_keys_platform_data pdata; |
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struct gpio_keys_button *p; |
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int err; |
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p = kmemdup(buttons, nbuttons * sizeof(*p), GFP_KERNEL); |
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if (!p) |
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return; |
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pdev = platform_device_alloc("gpio-keys-polled", id); |
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if (!pdev) |
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goto err_free_buttons; |
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memset(&pdata, 0, sizeof(pdata)); |
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pdata.poll_interval = poll_interval; |
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pdata.nbuttons = nbuttons; |
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pdata.buttons = p; |
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err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); |
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if (err) |
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goto err_put_pdev; |
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err = platform_device_add(pdev); |
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if (err) |
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goto err_put_pdev; |
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return; |
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err_put_pdev: |
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platform_device_put(pdev); |
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err_free_buttons: |
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kfree(p); |
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}
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