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 "fintek_internal.h"
#include "chip.h"
#include "f71869ad.h"
 
static void f71869ad_init(struct device *dev)
{
        if (!dev->enabled)
                return;
 
        switch (dev->path.pnp.device) {
        /* TODO: Might potentially need code for HWM or FDC etc. */
        case F71869AD_KBC:
                pc_keyboard_init(NO_AUX_DEVICE);
                break;
        case F71869AD_HWM:
                f71869ad_multifunc_init(dev);
                f71869ad_hwm_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             = f71869ad_init,
        .ops_pnp_mode     = &pnp_conf_mode_8787_aa,
};
 
/*
 * io_info contains the mask 0x07f8. Given 8 register, each 8 bits wide of a
 * logical device we need a mask of the following form:
 *
 *  MSB                 LSB
 *    v                 v
 * 0x[15..11][10..3][2..0]
 *    ------  ^^^^^  ^^^^
 *    null      |      |
 *              |      +------ Register index
 *              |
 *              +------------- Compare against base address and
 *                             asserts a chip_select on match.
 *
 *  i.e., 0x07F8 = [00000][11111111][000]
 *
 * NOTE: Be sure to set these in your devicetree.cb, i.e.
 *
 *                      chip superio/fintek/f71869ad
 *                              device pnp 4e.00 off        # Floppy
 *                                      io 0x60 = 0x3f0
 *                                      irq 0x70 = 6
 *                                      drq 0x74 = 2
 *                              end
 *                              device pnp 4e.01 on         # COM1
 *                                      io 0x60 = 0x3f8
 *                                      irq 0x70 = 4
 *                              end
 *                                      device pnp 4e.02 off    # COM2
 *                                      io 0x60 = 0x2f8
 *                                      irq 0x70 = 3
 *                              end
 *                              device pnp 4e.03 off        # Parallel Port
 *                                      io 0x60 = 0x378
 *                                      irq 0x70 = 7
 *                                      drq 0x74 = 3
 *                              end
 *                              device pnp 4e.04 on         # Hardware Monitor
 *                                      io 0x60 = 0x295
 *                                      irq 0x70 = 0
 *                              end
 *                              device pnp 4e.05 on         # KBC
 *                                      io 0x60 = 0x060
 *                                      irq 0x70 = 1            # Keyboard IRQ
 *                                      irq 0x72 = 12           # Mouse IRQ
 *                              end
 *                              device pnp 4e.06 off end    # GPIO
 *                              device pnp 4e.07 on end     # WDT
 *                              device pnp 4e.08 off end    # CIR
 *                              device pnp 4e.0a on end     # PME
 *                      end # f71869ad
 *
 */
static struct pnp_info pnp_dev_info[] = {
        { NULL, F71869AD_FDC,  PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, 0x07f8, },
        { NULL, F71869AD_SP1,  PNP_IO0 | PNP_IRQ0, 0x07f8, },
        { NULL, F71869AD_SP2,  PNP_IO0 | PNP_IRQ0, 0x07f8, },
        { NULL, F71869AD_PP,   PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, 0x07f8, },
        { NULL, F71869AD_HWM,  PNP_IO0 | PNP_IRQ0, 0x0ff8, },
        { NULL, F71869AD_KBC,  PNP_IO0 | PNP_IRQ0 | PNP_IRQ1, 0x07ff, },
        { NULL, F71869AD_GPIO, },
        { NULL, F71869AD_WDT, },
        { NULL, F71869AD_CIR,  PNP_IO0 | PNP_IRQ0, 0x07f8, },
        { NULL, F71869AD_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_f71869ad_ops = {
        CHIP_NAME("Fintek F71869AD Super I/O")
        .enable_dev = enable_dev
};