superio.c

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/* SPDX-License-Identifier: GPL-2.0-or-later */
 
#include <device/device.h>
#include <device/pnp.h>
#include <pc80/keyboard.h>
#include <option.h>
#include <superio/ite/common/env_ctrl.h>
#include <superio/conf_mode.h>
#include <types.h>
 
#include "chip.h"
#include "it8720f.h"
 
#define MAINBOARD_POWER_OFF     0
#define MAINBOARD_POWER_ON      1
#define MAINBOARD_POWER_KEEP    2
 
static void power_control_init(struct device *dev)
{
        unsigned int power_on = get_uint_option("power_on_after_fail", MAINBOARD_POWER_OFF);
        u8 value;
 
        pnp_enter_conf_mode(dev);
        pnp_set_logical_device(dev);
 
        value = pnp_read_config(dev, IT8720F_EC_PCR1);
        if (power_on == MAINBOARD_POWER_KEEP)
                value |= (1 << 5);
        else
                value &= ~(1 << 5);
        pnp_write_config(dev, IT8720F_EC_PCR1, value);
 
        value = pnp_read_config(dev, IT8720F_EC_PCR2);
        if (power_on == MAINBOARD_POWER_ON)
                value |= (1 << 5);
        else
                value &= ~(1 << 5);
        pnp_write_config(dev, IT8720F_EC_PCR2, value);
 
        pnp_exit_conf_mode(dev);
}
 
static void it8720f_init(struct device *dev)
{
        const struct superio_ite_it8720f_config *conf;
        const struct resource *res;
 
        if (!dev->enabled)
                return;
 
        switch (dev->path.pnp.device) {
        case IT8720F_EC:
                conf = dev->chip_info;
                res = probe_resource(dev, PNP_IDX_IO0);
                if (!conf || !res)
                        break;
                ite_ec_init(res->base, &conf->ec);
                power_control_init(dev);
                break;
        case IT8720F_KBCK:
                pc_keyboard_init(NO_AUX_DEVICE);
                break;
        default:
                break;
        }
}
 
static struct device_operations ops = {
        .read_resources   = pnp_read_resources,
        .set_resources    = pnp_set_resources,
        .enable_resources = pnp_enable_resources,
        .enable           = pnp_enable,
        .init             = it8720f_init,
        .ops_pnp_mode     = &pnp_conf_mode_870155_aa,
};
 
static struct pnp_info pnp_dev_info[] = {
        { NULL, IT8720F_FDC,
                PNP_IO0 | PNP_IRQ0 | PNP_DRQ0 | PNP_MSC0 | PNP_MSC1,
                0x0ff8, },
        { NULL, IT8720F_SP1,
                PNP_IO0 | PNP_IRQ0 | PNP_MSC0 | PNP_MSC1,
                0x0ff8, },
        { NULL, IT8720F_SP2,
                PNP_IO0 | PNP_IRQ0 | PNP_MSC0 | PNP_MSC1,
                0x0ff8, },
        { NULL, IT8720F_PP,
                PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_DRQ0 | PNP_MSC0,
                0x0ff8, 0x0ffc, },
        { NULL, IT8720F_EC,
                PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_MSC0 | PNP_MSC1 | PNP_MSC2 |
                PNP_MSC3 | PNP_MSC4 | PNP_MSC5 | PNP_MSC6,
                0x0ff8, 0x0ffc, },
        { NULL, IT8720F_KBCK,
                PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_MSC0,
                0x0fff, 0x0fff, },
        { NULL, IT8720F_KBCM,
                PNP_IRQ0 | PNP_MSC0, },
        { NULL, IT8720F_GPIO,
                PNP_IO0 | PNP_IO1 | PNP_IO2 | 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_MSCD | PNP_MSCE,
                0x0ff8, 0x0ff8, 0x0ff8, },
        { NULL, IT8720F_CIR,
                PNP_IO0 | PNP_IRQ0 | PNP_MSC0,
                0x0ff8, },
};
 
static void enable_dev(struct device *dev)
{
        pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
}
 
struct chip_operations superio_ite_it8720f_ops = {
        CHIP_NAME("ITE IT8720F Super I/O")
        .enable_dev = enable_dev,
};