xref: /openbmc/linux/arch/sparc/include/uapi/asm/apc.h (revision 6f52b16c)
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /* apc - Driver definitions for power management functions
3  * of Aurora Personality Chip (APC) on SPARCstation-4/5 and
4  * derivatives
5  *
6  * Copyright (c) 2001 Eric Brower (ebrower@usa.net)
7  *
8  */
9 
10 #ifndef _SPARC_APC_H
11 #define _SPARC_APC_H
12 
13 #include <linux/ioctl.h>
14 
15 #define APC_IOC	'A'
16 
17 #define APCIOCGFANCTL _IOR(APC_IOC, 0x00, int)	/* Get fan speed	*/
18 #define APCIOCSFANCTL _IOW(APC_IOC, 0x01, int)	/* Set fan speed	*/
19 
20 #define APCIOCGCPWR   _IOR(APC_IOC, 0x02, int)	/* Get CPOWER state	*/
21 #define APCIOCSCPWR   _IOW(APC_IOC, 0x03, int)	/* Set CPOWER state	*/
22 
23 #define APCIOCGBPORT   _IOR(APC_IOC, 0x04, int)	/* Get BPORT state 	*/
24 #define APCIOCSBPORT   _IOW(APC_IOC, 0x05, int)	/* Set BPORT state	*/
25 
26 /*
27  * Register offsets
28  */
29 #define APC_IDLE_REG	0x00
30 #define APC_FANCTL_REG	0x20
31 #define APC_CPOWER_REG	0x24
32 #define APC_BPORT_REG	0x30
33 
34 #define APC_REGMASK		0x01
35 #define APC_BPMASK		0x03
36 
37 /*
38  * IDLE - CPU standby values (set to initiate standby)
39  */
40 #define APC_IDLE_ON		0x01
41 
42 /*
43  * FANCTL - Fan speed control state values
44  */
45 #define APC_FANCTL_HI	0x00	/* Fan speed high	*/
46 #define APC_FANCTL_LO	0x01	/* Fan speed low	*/
47 
48 /*
49  * CPWR - Convenience power outlet state values
50  */
51 #define APC_CPOWER_ON	0x00	/* Conv power on	*/
52 #define APC_CPOWER_OFF	0x01	/* Conv power off	*/
53 
54 /*
55  * BPA/BPB - Read-Write "Bit Ports" state values (reset to 0 at power-on)
56  *
57  * WARNING: Internal usage of bit ports is platform dependent--
58  * don't modify BPORT settings unless you know what you are doing.
59  *
60  * On SS5 BPA seems to toggle onboard ethernet loopback... -E
61  */
62 #define APC_BPORT_A		0x01	/* Bit Port A		*/
63 #define APC_BPORT_B		0x02	/* Bit Port B		*/
64 
65 #endif /* !(_SPARC_APC_H) */
66