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/* SPDX-License-Identifier: GPL-2.0-or-later */
#include <console/console.h>
#include <device/device.h>
#include <device/pnp.h>
#include <pc80/keyboard.h>
#include <option.h>
#include <superio/conf_mode.h>
#include "nct6687d.h"
#define MAINBOARD_POWER_OFF 0
#define MAINBOARD_POWER_ON 1
#define MAINBOARD_POWER_KEEP 2
/* 0xeb register definitions */
#define NCT6687D_ACPI_POWER_LOSS_CONTROL_MASK 0x60
#define NCT6687D_ACPI_POWER_LOSS_CONTROL_SHIFT 5
#define NCT6687D_ACPI_POWER_ALWAYS_OFF (0 << NCT6687D_ACPI_POWER_LOSS_CONTROL_SHIFT)
#define NCT6687D_ACPI_POWER_ALWAYS_ON (1 << NCT6687D_ACPI_POWER_LOSS_CONTROL_SHIFT)
#define NCT6687D_ACPI_POWER_PREV_STATE (2 << NCT6687D_ACPI_POWER_LOSS_CONTROL_SHIFT)
#define NCT6687D_ACPI_POWER_USER_DEFINED (3 << NCT6687D_ACPI_POWER_LOSS_CONTROL_SHIFT)
static void nct6687d_init(struct device *dev)
{
if (!dev->enabled)
return;
uint8_t byte;
uint8_t power_status;
switch (dev->path.pnp.device) {
/* TODO: Might potentially need code for EC, GPIOs, etc. */
case NCT6687D_KBC:
pc_keyboard_init(PROBE_AUX_DEVICE);
break;
case NCT6687D_ACPI:
/* Set power state after power fail */
power_status = get_uint_option("power_on_after_fail",
CONFIG_MAINBOARD_POWER_FAILURE_STATE);
pnp_enter_conf_mode(dev);
pnp_set_logical_device(dev);
byte = pnp_read_config(dev, 0xeb);
byte &= ~NCT6687D_ACPI_POWER_LOSS_CONTROL_MASK;
if (power_status == MAINBOARD_POWER_ON)
byte |= NCT6687D_ACPI_POWER_ALWAYS_ON;
else if (power_status == MAINBOARD_POWER_KEEP)
byte |= NCT6687D_ACPI_POWER_PREV_STATE;
pnp_write_config(dev, 0xeb, byte);
pnp_exit_conf_mode(dev);
printk(BIOS_INFO, "set power %s after power fail\n",
power_status ? "on" : "off");
break;
}
}
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 = nct6687d_init,
.ops_pnp_mode = &pnp_conf_mode_8787_aa,
};
static struct pnp_info pnp_dev_info[] = {
{ NULL, NCT6687D_PP, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0 | PNP_MSC0, 0x0FF8,},
{ NULL, NCT6687D_SP1, PNP_IO0 | PNP_IRQ0 | PNP_MSC0, 0x0FF8, },
{ NULL, NCT6687D_SP2, PNP_IO0 | PNP_IRQ0 | PNP_MSC0 | PNP_MSC1, 0x0FF8, },
{ NULL, NCT6687D_KBC, PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1 | PNP_MSC0,
0x0FFF, 0x0FFF, },
{ NULL, NCT6687D_CIR, PNP_IO0 | PNP_IRQ0 | PNP_MSC0 | PNP_MSC1 | PNP_MSC2 | PNP_MSC3,
0x0FF8, },
{ NULL, NCT6687D_GPIO_0_7, PNP_IO0 | PNP_IRQ0, 0x0FF0,},
{ NULL, NCT6687D_P80_UART},
{ NULL, NCT6687D_GPIO_8_9_AF},
{ NULL, NCT6687D_ACPI, PNP_IO0 | PNP_IRQ0, 0x0FF8,},
{ NULL, NCT6687D_EC, PNP_IO0 | PNP_IRQ0, 0x0FF8,},
{ NULL, NCT6687D_RTC},
{ NULL, NCT6687D_SLEEP_PWR},
{ NULL, NCT6687D_TACH_PWM},
{ NULL, NCT6687D_FREG},
};
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_nct6687d_ops = {
.name = "NUVOTON NCT6687D Super I/O",
.enable_dev = enable_dev,
};
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