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/* SPDX-License-Identifier: GPL-2.0-or-later */
/* This file is part of the coreboot project. */
#include <arch/io.h>
#include <console/console.h>
#include <device/device.h>
#include <device/pnp.h>
#include <option.h>
#include <pc80/keyboard.h>
#include <superio/conf_mode.h>
#include <arch/acpi.h>
#include <arch/acpigen.h>
#include "npcd378.h"
uint8_t npcd378_hwm_read(const uint16_t iobase, const uint16_t reg)
{
outb((reg >> 8) & 0xf, iobase + 0xff);
uint8_t reg8 = inb(iobase + (reg & 0xff));
if (reg8 == 0xff)
reg8 = inb(iobase + (reg & 0xff));
outb(0, iobase + 0xff);
return reg8;
}
void npcd378_hwm_write(const uint16_t iobase, const uint16_t reg,
const uint8_t val)
{
outb((reg >> 8) & 0xf, iobase + 0xff);
outb(val, iobase + (reg & 0xff));
outb(0, iobase + 0xff);
}
void npcd378_hwm_write_start(const uint16_t iobase)
{
u8 reg8 = npcd378_hwm_read(iobase, NPCD837_HWM_WRITE_LOCK_CTRL);
reg8 &= ~NPCD837_HWM_WRITE_LOCK_BIT;
npcd378_hwm_write(iobase, NPCD837_HWM_WRITE_LOCK_CTRL, reg8);
}
void npcd378_hwm_write_finished(const uint16_t iobase)
{
u8 reg8 = npcd378_hwm_read(iobase, NPCD837_HWM_WRITE_LOCK_CTRL);
reg8 |= NPCD837_HWM_WRITE_LOCK_BIT;
npcd378_hwm_write(iobase, NPCD837_HWM_WRITE_LOCK_CTRL, reg8);
}
static void npcd378_init(struct device *dev)
{
struct resource *res;
uint8_t pwm, fan_lvl;
if (!dev->enabled)
return;
switch (dev->path.pnp.device) {
/* TODO: Might potentially need code for FDC etc. */
case NPCD378_KBC:
pc_keyboard_init(PROBE_AUX_DEVICE);
break;
case NPCD378_HWM:
res = find_resource(dev, PNP_IDX_IO0);
if (!res || !res->base) {
printk(BIOS_ERR, "NPCD378: LDN%u IOBASE not set.\n",
NPCD378_HWM);
break;
}
npcd378_hwm_write_start(res->base);
if (!get_option(&fan_lvl, "psu_fan_lvl") || fan_lvl > 7)
fan_lvl = 3;
pwm = NPCD378_HWM_PSU_FAN_MIN +
(NPCD378_HWM_PSU_FAN_MAX - NPCD378_HWM_PSU_FAN_MIN) *
fan_lvl / 7;
/* Set PSU fan PWM lvl */
npcd378_hwm_write(res->base, NPCD378_HWM_PSU_FAN_PWM_CTRL, pwm);
printk(BIOS_INFO, "NPCD378: PSU fan PWM 0x%02x\n", pwm);
npcd378_hwm_write_finished(res->base);
break;
}
}
#if CONFIG(HAVE_ACPI_TABLES)
static void npcd378_ssdt(struct device *dev)
{
struct resource *res;
const char *scope = acpi_device_path(dev);
if (!scope) {
printk(BIOS_ERR, "%s: Missing ACPI scope\n", dev_path(dev));
return;
}
switch (dev->path.pnp.device) {
case NPCD378_PWR: {
res = find_resource(dev, PNP_IDX_IO0);
if (!res || !res->base) {
printk(BIOS_ERR, "NPCD378: LDN%u IOBASE not set.\n",
NPCD378_PWR);
break;
}
acpigen_write_scope(scope);
acpigen_write_name_integer("SWB", res->base);
acpigen_write_name_integer("SWL", res->size);
acpigen_pop_len(); /* pop scope */
res = find_resource(dev, PNP_IDX_IO1);
if (!res || !res->base) {
printk(BIOS_ERR, "NPCD378: LDN%u IOBASE2 not set.\n",
NPCD378_PWR);
break;
}
acpigen_write_scope(scope);
acpigen_write_name_integer("RNB", res->base);
acpigen_write_name_integer("RNL", res->size);
acpigen_pop_len(); /* pop scope */
break;
}
}
}
static const char *npcd378_acpi_name(const struct device *dev)
{
return "SIO0";
}
#endif
static struct device_operations ops = {
.read_resources = pnp_read_resources,
.set_resources = pnp_set_resources,
.enable_resources = pnp_enable_resources,
.enable = pnp_alt_enable,
.init = npcd378_init,
.ops_pnp_mode = &pnp_conf_mode_8787_aa,
#if CONFIG(HAVE_ACPI_TABLES)
.acpi_fill_ssdt_generator = npcd378_ssdt,
.acpi_name = npcd378_acpi_name,
#endif
};
static struct pnp_info pnp_dev_info[] = {
{ NULL, NPCD378_FDC, PNP_IO0|PNP_IRQ0|PNP_DRQ0, 0x0ff8, },
{ NULL, NPCD378_PP, PNP_IO0|PNP_IRQ0|PNP_DRQ0, 0x0ff8, },
{ NULL, NPCD378_SP1, PNP_IO0|PNP_IRQ0, 0x0ff8, },
{ NULL, NPCD378_SP2, PNP_IO0|PNP_IRQ0, 0x0ff8, },
{ NULL, NPCD378_PWR, PNP_IO0|PNP_IO1|PNP_IRQ0|PNP_MSC0|
PNP_MSC1|PNP_MSC2|PNP_MSC3|PNP_MSC4|PNP_MSC5|PNP_MSC6|PNP_MSC7|
PNP_MSC8|PNP_MSC9|PNP_MSCA|PNP_MSCB|PNP_MSCC|PNP_MSCD|PNP_MSCE,
0x0ff8, 0x0ff0},
{ NULL, NPCD378_AUX, PNP_IRQ0, 0x0fff, 0x0fff, },
{ NULL, NPCD378_KBC, PNP_IO0|PNP_IO1|PNP_IRQ0,
0x0fff, 0x0fff, },
{ NULL, NPCD378_WDT1, PNP_IO0|PNP_MSC8|PNP_MSC9|
PNP_MSCA|PNP_MSCB|PNP_MSCC|PNP_MSCD|PNP_MSCE, 0x0fe0},
{ NULL, NPCD378_HWM, PNP_IO0|PNP_MSC0|PNP_MSC1|PNP_MSC2|PNP_MSC3|
PNP_MSC4|PNP_MSC5|PNP_MSC6|PNP_MSC7|PNP_IRQ0, 0x0f00},
{ NULL, NPCD378_GPIO_PP_OD, PNP_MSC0|PNP_MSC1|PNP_MSC2|PNP_MSC3|
PNP_MSC4|PNP_MSC5|PNP_MSC6|PNP_MSC7|PNP_MSC8|PNP_MSC9|PNP_MSCA|
PNP_MSCB|PNP_MSCC|PNP_MSCD|PNP_MSCE},
{ NULL, NPCD378_I2C, PNP_IO0|PNP_IO1|PNP_IRQ0|PNP_MSC0|
PNP_MSC1|PNP_MSC2|PNP_MSC3|PNP_MSC4|PNP_MSC5|PNP_MSC6|PNP_MSC7|
PNP_MSC8|PNP_MSC9|PNP_MSCA|PNP_MSCB|PNP_MSCC|PNP_MSCD|PNP_MSCE,
0x0ff0, 0x0ff0},
{ NULL, NPCD378_SUSPEND, PNP_IO0, 0x0fe0 },
{ NULL, NPCD378_GPIOA, PNP_IO0|PNP_MSC0|PNP_MSC1|PNP_MSC2|PNP_MSC3|
PNP_MSC4, 0x0fe0},
};
static void enable_dev(struct device *dev)
{
pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
}
struct chip_operations superio_nuvoton_npcd378_ops = {
CHIP_NAME("NUVOTON NPCD378 Super I/O")
.enable_dev = enable_dev,
};
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