superio.c

Go to the documentation of this file.

/* SPDX-License-Identifier: GPL-2.0-only */
 
/* RAM driver for the SMSC KBC1100 Super I/O chip */
 
#include <device/device.h>
#include <device/pnp.h>
#include <superio/conf_mode.h>
#include <pc80/keyboard.h>
 
#include "kbc1100.h"
 
/* Forward declarations */
static void enable_dev(struct device *dev);
static void kbc1100_init(struct device *dev);
 
struct chip_operations superio_smsc_kbc1100_ops = {
        CHIP_NAME("SMSC KBC1100 Super I/O")
        .enable_dev = enable_dev
};
 
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             = kbc1100_init,
        .ops_pnp_mode     = &pnp_conf_mode_55_aa,
};
 
static struct pnp_info pnp_dev_info[] = {
        { NULL, KBC1100_KBC,  PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1,
                0x7ff, 0x7ff, },
};
 
static void enable_dev(struct device *dev)
{
        pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
}
 
static void kbc1100_init(struct device *dev)
{
        struct resource *res0, *res1;
 
        if (!dev->enabled)
                return;
 
        switch (dev->path.pnp.device) {
        case KBC1100_KBC:
                res0 = find_resource(dev, PNP_IDX_IO0);
                res1 = find_resource(dev, PNP_IDX_IO1);
                pc_keyboard_init(NO_AUX_DEVICE);
                break;
        }
}