forked from Minki/linux
96 lines
2.1 KiB
C
96 lines
2.1 KiB
C
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#include "bcm47xx_private.h"
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#include <linux/input.h>
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#include <linux/gpio_keys.h>
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#include <linux/interrupt.h>
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#include <linux/ssb/ssb_embedded.h>
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#include <bcm47xx_board.h>
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#include <bcm47xx.h>
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/**************************************************
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* Database
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**************************************************/
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static const struct gpio_keys_button
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bcm47xx_buttons_netgear_wndr4500_v1[] __initconst = {
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{
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.code = KEY_WPS_BUTTON,
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.gpio = 4,
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.active_low = 1,
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},
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{
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.code = KEY_RFKILL,
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.gpio = 5,
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.active_low = 1,
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},
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{
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.code = KEY_RESTART,
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.gpio = 6,
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.active_low = 1,
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},
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};
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/**************************************************
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* Init
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**************************************************/
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static struct gpio_keys_platform_data bcm47xx_button_pdata;
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static struct platform_device bcm47xx_buttons_gpio_keys = {
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.name = "gpio-keys",
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.dev = {
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.platform_data = &bcm47xx_button_pdata,
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}
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};
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/* Copy data from __initconst */
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static int __init bcm47xx_buttons_copy(const struct gpio_keys_button *buttons,
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size_t nbuttons)
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{
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size_t size = nbuttons * sizeof(*buttons);
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bcm47xx_button_pdata.buttons = kmalloc(size, GFP_KERNEL);
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if (!bcm47xx_button_pdata.buttons)
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return -ENOMEM;
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memcpy(bcm47xx_button_pdata.buttons, buttons, size);
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bcm47xx_button_pdata.nbuttons = nbuttons;
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return 0;
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}
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#define bcm47xx_copy_bdata(dev_buttons) \
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bcm47xx_buttons_copy(dev_buttons, ARRAY_SIZE(dev_buttons));
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int __init bcm47xx_buttons_register(void)
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{
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enum bcm47xx_board board = bcm47xx_board_get();
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int err;
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#ifdef CONFIG_BCM47XX_SSB
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if (bcm47xx_bus_type == BCM47XX_BUS_TYPE_SSB) {
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pr_debug("Buttons on SSB are not supported yet.\n");
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return -ENOTSUPP;
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}
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#endif
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switch (board) {
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case BCM47XX_BOARD_NETGEAR_WNDR4500V1:
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err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_wndr4500_v1);
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break;
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default:
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pr_debug("No buttons configuration found for this device\n");
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return -ENOTSUPP;
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}
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if (err)
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return -ENOMEM;
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err = platform_device_register(&bcm47xx_buttons_gpio_keys);
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if (err) {
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pr_err("Failed to register platform device: %d\n", err);
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return err;
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}
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return 0;
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}
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