src/superio/fintek/f81803a/superio.c

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 #include <device/device.h>
   4 #include <device/pnp.h>
   5 #include <superio/conf_mode.h>
   6 #include <pc80/keyboard.h>
   7 #include "f81803a.h"
   8
   9 static void f81803a_pme_init(struct device *dev)
  10 {
  11         pnp_enter_conf_mode(dev);
  12         pnp_write_config(dev, LDN_REG, F81803A_PME);
  13         /* enable ERP function*/
  14         /* also set PSIN to generate PSOUT*/
  15         pnp_write_config(dev, PME_ERP_ENABLE_REG, ERP_ENABLE | ERP_PSOUT_EN);
  16         pnp_exit_conf_mode(dev);
  17 }
  18
  19 static void f81803a_init(struct device *dev)
  20 {
  21         if (!dev->enabled)
  22                 return;
  23         switch (dev->path.pnp.device) {
  24         /* TODO: Might potentially need code for GPIO or WDT. */
  25         case F81803A_KBC:
  26                 pc_keyboard_init(NO_AUX_DEVICE);
  27                 break;
  28         case F81803A_PME:
  29                 f81803a_pme_init(dev);
  30                 break;
  31         }
  32 }
  33
  34 static struct device_operations ops = {
  35         .read_resources         = pnp_read_resources,
  36         .set_resources          = pnp_set_resources,
  37         .enable_resources       = pnp_enable_resources,
  38         .enable                 = pnp_alt_enable,
  39         .init                   = f81803a_init,
  40         .ops_pnp_mode           = &pnp_conf_mode_8787_aa,
  41 };
  42
  43 static struct pnp_info pnp_dev_info[] = {
  44         { &ops, F81803A_SP1,  PNP_IO0 | PNP_IRQ0, 0x7f8, },
  45         { &ops, F81803A_SP2,  PNP_IO0 | PNP_IRQ0, 0x7f8, },
  46         { &ops, F81803A_HWM,  PNP_IO0 | PNP_IRQ0, 0xff8, },
  47         { &ops, F81803A_KBC,  PNP_IO0 | PNP_IRQ0 | PNP_IRQ1, 0x07f8, },
  48         { &ops, F81803A_GPIO, PNP_IO0 | PNP_IRQ0, 0x7f8, },
  49         { &ops, F81803A_WDT,  PNP_IO0, 0x7f8 },
  50         { &ops, F81803A_PME, },
  51 };
  52
  53 static void enable_dev(struct device *dev)
  54 {
  55         pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
  56 }
  57
  58 struct chip_operations superio_fintek_f81803a_ops = {
  59         .name = "Fintek F81803A Super I/O",
  60         .enable_dev = enable_dev
  61 };