Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *  linux/arch/arm/kernel/isa.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *  Copyright (C) 1999 Phil Blundell
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  *  ISA shared memory and I/O port support, and is required to support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  *  iopl, inb, outb and friends in userspace via glibc emulation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/stddef.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/sysctl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) static unsigned int isa_membase, isa_portbase, isa_portshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) static struct ctl_table ctl_isa_vars[4] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 		.procname	= "membase",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		.data		= &isa_membase, 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 		.maxlen		= sizeof(isa_membase),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 		.mode		= 0444,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		.proc_handler	= proc_dointvec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		.procname	= "portbase",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 		.data		= &isa_portbase, 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 		.maxlen		= sizeof(isa_portbase),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 		.mode		= 0444,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 		.proc_handler	= proc_dointvec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 		.procname	= "portshift",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 		.data		= &isa_portshift, 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 		.maxlen		= sizeof(isa_portshift),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 		.mode		= 0444,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 		.proc_handler	= proc_dointvec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	}, {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) static struct ctl_table_header *isa_sysctl_header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) static struct ctl_table ctl_isa[2] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 		.procname	= "isa",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 		.mode		= 0555,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 		.child		= ctl_isa_vars,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	}, {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) static struct ctl_table ctl_bus[2] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 		.procname	= "bus",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 		.mode		= 0555,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 		.child		= ctl_isa,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	}, {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) void __init
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) register_isa_ports(unsigned int membase, unsigned int portbase, unsigned int portshift)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	isa_membase = membase;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 	isa_portbase = portbase;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 	isa_portshift = portshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 	isa_sysctl_header = register_sysctl_table(ctl_bus);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) }