superio.c

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/* SPDX-License-Identifier: GPL-2.0-or-later */
 
#include <device/device.h>
#include <device/pnp.h>
#include <superio/conf_mode.h>
#include <pc80/keyboard.h>
#include "f81803a.h"
 
static void f81803a_pme_init(struct device *dev)
{
        pnp_enter_conf_mode(dev);
        pnp_write_config(dev, LDN_REG, F81803A_PME);
        /* enable ERP function*/
        /* also set PSIN to generate PSOUT*/
        pnp_write_config(dev, PME_ERP_ENABLE_REG, ERP_ENABLE | ERP_PSOUT_EN);
        pnp_exit_conf_mode(dev);
}
 
static void f81803a_init(struct device *dev)
{
        if (!dev->enabled)
                return;
        switch (dev->path.pnp.device) {
        /* TODO: Might potentially need code for GPIO or WDT. */
        case F81803A_KBC:
                pc_keyboard_init(NO_AUX_DEVICE);
                break;
        case F81803A_PME:
                f81803a_pme_init(dev);
                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                   = f81803a_init,
        .ops_pnp_mode           = &pnp_conf_mode_8787_aa,
};
 
static struct pnp_info pnp_dev_info[] = {
        { &ops, F81803A_SP1,  PNP_IO0 | PNP_IRQ0, 0x7f8, },
        { &ops, F81803A_SP2,  PNP_IO0 | PNP_IRQ0, 0x7f8, },
        { &ops, F81803A_HWM,  PNP_IO0 | PNP_IRQ0, 0xff8, },
        { &ops, F81803A_KBC,  PNP_IO0 | PNP_IRQ0 | PNP_IRQ1, 0x07f8, },
        { &ops, F81803A_GPIO, PNP_IO0 | PNP_IRQ0, 0x7f8, },
        { &ops, F81803A_WDT,  PNP_IO0, 0x7f8 },
        { &ops, F81803A_PME, },
};
 
static void enable_dev(struct device *dev)
{
        pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
}
 
struct chip_operations superio_fintek_f81803a_ops = {
        CHIP_NAME("Fintek F81803A Super I/O")
        .enable_dev = enable_dev
};