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/*
* Copyright (c) 2006-2024, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2024-5-1 GuEe-GUI first version
*/
#define __SPACEMIT_PWRKEY_INTERNAL
#include <mfd/spacemit-pmic.h>
struct spacemit_pmic_pwrkey
{
struct rt_input_device parent;
int fall_irq, rise_irq;
int s_key_irq, l_key_irq;
};
static void spacemit_pmic_pwrkey_fall_irq(int irqno, void *param)
{
struct spacemit_pmic_pwrkey *pwr = param;
rt_interrupt_enter();
rt_input_report_key(&pwr->parent, KEY_POWER, 1);
rt_input_sync(&pwr->parent);
rt_interrupt_leave();
}
static void spacemit_pmic_pwrkey_rise_irq(int irqno, void *param)
{
struct spacemit_pmic_pwrkey *pwr = param;
rt_interrupt_enter();
rt_input_report_key(&pwr->parent, KEY_POWER, 0);
rt_input_sync(&pwr->parent);
rt_interrupt_leave();
}
static void spacemit_pmic_pwrkey_skey_irq(int irqno, void *param)
{
/* Do nothing by now */
}
static void spacemit_pmic_pwrkey_lkey_irq(int irqno, void *param)
{
/* Do nothing by now */
}
static rt_err_t spacemit_pmic_pwrkey_probe(struct rt_platform_device *pdev)
{
rt_err_t err;
struct rt_device *dev = &pdev->parent;
struct spacemit_pmic_pwrkey *pwr = rt_calloc(1, sizeof(*pwr));
if (!pwr)
{
return -RT_ENOMEM;
}
if ((pwr->rise_irq = rt_dm_dev_get_irq(dev, 0)) < 0)
{
err = pwr->rise_irq;
goto _fail;
}
if ((pwr->fall_irq = rt_dm_dev_get_irq(dev, 1)) < 0)
{
err = pwr->fall_irq;
goto _fail;
}
if ((pwr->s_key_irq = rt_dm_dev_get_irq(dev, 2)) < 0)
{
err = pwr->s_key_irq;
goto _fail;
}
if ((pwr->l_key_irq = rt_dm_dev_get_irq(dev, 3)) < 0)
{
err = pwr->l_key_irq;
goto _fail;
}
rt_input_set_capability(&pwr->parent, EV_KEY, KEY_POWER);
if ((err = rt_input_device_register(&pwr->parent)))
{
goto _fail;
}
dev->user_data = pwr;
rt_hw_interrupt_install(pwr->fall_irq, spacemit_pmic_pwrkey_fall_irq, pwr, "pwrkey-pmic-fall");
rt_hw_interrupt_umask(pwr->fall_irq);
rt_hw_interrupt_install(pwr->rise_irq, spacemit_pmic_pwrkey_rise_irq, pwr, "pwrkey-pmic-rise");
rt_hw_interrupt_umask(pwr->rise_irq);
rt_hw_interrupt_install(pwr->s_key_irq, spacemit_pmic_pwrkey_skey_irq, pwr, "pwrkey-pmic-skey");
rt_hw_interrupt_umask(pwr->s_key_irq);
rt_hw_interrupt_install(pwr->l_key_irq, spacemit_pmic_pwrkey_lkey_irq, pwr, "pwrkey-pmic-lkey");
rt_hw_interrupt_umask(pwr->l_key_irq);
return RT_EOK;
_fail:
rt_free(pwr);
return err;
}
static rt_err_t spacemit_pmic_pwrkey_remove(struct rt_platform_device *pdev)
{
struct spacemit_pmic_pwrkey *pwr = pdev->parent.user_data;
rt_hw_interrupt_mask(pwr->fall_irq);
rt_pic_detach_irq(pwr->fall_irq, pwr);
rt_hw_interrupt_mask(pwr->rise_irq);
rt_pic_detach_irq(pwr->rise_irq, pwr);
rt_hw_interrupt_mask(pwr->s_key_irq);
rt_pic_detach_irq(pwr->s_key_irq, pwr);
rt_hw_interrupt_mask(pwr->l_key_irq);
rt_pic_detach_irq(pwr->l_key_irq, pwr);
rt_input_device_unregister(&pwr->parent);
rt_free(pwr);
return RT_EOK;
}
static const struct rt_ofw_node_id spacemit_pmic_pwrkey_ofw_ids[] =
{
{ .compatible = "pmic,pwrkey,spm8821" },
{ /* sentinel */ }
};
static struct rt_platform_driver spacemit_pmic_pwrkey_driver =
{
.name = "spacemit-pmic-pwrkey",
.ids = spacemit_pmic_pwrkey_ofw_ids,
.probe = spacemit_pmic_pwrkey_probe,
.remove = spacemit_pmic_pwrkey_remove,
};
RT_PLATFORM_DRIVER_EXPORT(spacemit_pmic_pwrkey_driver);
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