forked from Minki/linux
104fb25f60
ipmi_si_sm.h was getting included in lots of places it didn't belong. Rework things a bit to remove all the dependencies, mostly just moving things between include files that were in the wrong place and removing bogus includes. Signed-off-by: Corey Minyard <cminyard@mvista.com>
115 lines
2.5 KiB
C
115 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
|
|
#include <linux/io.h>
|
|
#include "ipmi_si.h"
|
|
|
|
static unsigned char port_inb(const struct si_sm_io *io, unsigned int offset)
|
|
{
|
|
unsigned int addr = io->addr_data;
|
|
|
|
return inb(addr + (offset * io->regspacing));
|
|
}
|
|
|
|
static void port_outb(const struct si_sm_io *io, unsigned int offset,
|
|
unsigned char b)
|
|
{
|
|
unsigned int addr = io->addr_data;
|
|
|
|
outb(b, addr + (offset * io->regspacing));
|
|
}
|
|
|
|
static unsigned char port_inw(const struct si_sm_io *io, unsigned int offset)
|
|
{
|
|
unsigned int addr = io->addr_data;
|
|
|
|
return (inw(addr + (offset * io->regspacing)) >> io->regshift) & 0xff;
|
|
}
|
|
|
|
static void port_outw(const struct si_sm_io *io, unsigned int offset,
|
|
unsigned char b)
|
|
{
|
|
unsigned int addr = io->addr_data;
|
|
|
|
outw(b << io->regshift, addr + (offset * io->regspacing));
|
|
}
|
|
|
|
static unsigned char port_inl(const struct si_sm_io *io, unsigned int offset)
|
|
{
|
|
unsigned int addr = io->addr_data;
|
|
|
|
return (inl(addr + (offset * io->regspacing)) >> io->regshift) & 0xff;
|
|
}
|
|
|
|
static void port_outl(const struct si_sm_io *io, unsigned int offset,
|
|
unsigned char b)
|
|
{
|
|
unsigned int addr = io->addr_data;
|
|
|
|
outl(b << io->regshift, addr+(offset * io->regspacing));
|
|
}
|
|
|
|
static void port_cleanup(struct si_sm_io *io)
|
|
{
|
|
unsigned int addr = io->addr_data;
|
|
int idx;
|
|
|
|
if (addr) {
|
|
for (idx = 0; idx < io->io_size; idx++)
|
|
release_region(addr + idx * io->regspacing,
|
|
io->regsize);
|
|
}
|
|
}
|
|
|
|
int ipmi_si_port_setup(struct si_sm_io *io)
|
|
{
|
|
unsigned int addr = io->addr_data;
|
|
int idx;
|
|
|
|
if (!addr)
|
|
return -ENODEV;
|
|
|
|
/*
|
|
* Figure out the actual inb/inw/inl/etc routine to use based
|
|
* upon the register size.
|
|
*/
|
|
switch (io->regsize) {
|
|
case 1:
|
|
io->inputb = port_inb;
|
|
io->outputb = port_outb;
|
|
break;
|
|
case 2:
|
|
io->inputb = port_inw;
|
|
io->outputb = port_outw;
|
|
break;
|
|
case 4:
|
|
io->inputb = port_inl;
|
|
io->outputb = port_outl;
|
|
break;
|
|
default:
|
|
dev_warn(io->dev, "Invalid register size: %d\n",
|
|
io->regsize);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
* Some BIOSes reserve disjoint I/O regions in their ACPI
|
|
* tables. This causes problems when trying to register the
|
|
* entire I/O region. Therefore we must register each I/O
|
|
* port separately.
|
|
*/
|
|
for (idx = 0; idx < io->io_size; idx++) {
|
|
if (request_region(addr + idx * io->regspacing,
|
|
io->regsize, SI_DEVICE_NAME) == NULL) {
|
|
/* Undo allocations */
|
|
while (idx--)
|
|
release_region(addr + idx * io->regspacing,
|
|
io->regsize);
|
|
return -EIO;
|
|
}
|
|
}
|
|
|
|
io->io_cleanup = port_cleanup;
|
|
|
|
return 0;
|
|
}
|