Lines Matching +full:power +full:- +full:button

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3  * HP PARISC soft power switch driver
5  * Copyright (c) 2001-2023 Helge Deller <deller@gmx.de>
8  *  Support of the soft power switch button may be enabled or disabled at
9  *  runtime through the "/proc/sys/kernel/power" procfs entry.
28 /* how often should the power button be polled ? */
31 /* how long does the power button needs to be down until we react ? */
64 	/* wait until the button was pressed for 1 second */  in process_shutdown()
79 /* main power switch task struct */
82 /* filename in /proc which can be used to enable/disable the power switch */
83 #define SYSCTL_FILENAME	"sys/kernel/power"
85 /* soft power switch enabled/disabled */
90 		.procname	= "soft-power",
106 /* main kernel thread worker. It polls the button state */
122 			 * Non-Gecko-style machines:  in kpowerswd()
123 			 * Check the power switch status which is read from the  in kpowerswd()
125 			 * Bit 31 ("the lowest bit) is the status of the power switch.  in kpowerswd()
126 			 * This bit is "1" if the button is NOT pressed.  in kpowerswd()
132 			 * the power switch status is stored in Bit 0 ("the highest bit")  in kpowerswd()
135 			 * the button has been released again.  in kpowerswd()
174  * be executed any longer. This function then re-enables
175  * the soft-power switch and allows the user to switch off
183 	/* re-enable the soft-power switch */  in parisc_panic_event()
193 /* qemu soft power-off function */
197 	gsc_writel(0, (unsigned long) data->cb_data);  in qemu_power_off()
212 	/* enable the soft power switch if possible */  in power_init()
217 		soft_power_reg = -1UL;  in power_init()
220 	case 0:		printk(KERN_INFO DRIVER_NAME ": Gecko-style soft power switch enabled.\n");  in power_init()
223 	case -1UL:	printk(KERN_INFO DRIVER_NAME ": Soft power switch support not available.\n");  in power_init()
224 			return -ENODEV;  in power_init()
226 	default:	printk(KERN_INFO DRIVER_NAME ": Soft power switch at 0x%08lx enabled.\n",  in power_init()
240 		return -EIO;  in power_init()
265 MODULE_DESCRIPTION("Soft power switch driver");