src/superio/nuvoton/nct5572d/superio.c

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 #include <console/console.h>
   4 #include <device/device.h>
   5 #include <device/pnp.h>
   6 #include <pc80/keyboard.h>
   7 #include <option.h>
   8 #include <superio/conf_mode.h>
   9
  10 #include "nct5572d.h"
  11
  12 #define MAINBOARD_POWER_OFF     0
  13 #define MAINBOARD_POWER_ON      1
  14 #define MAINBOARD_POWER_KEEP    2
  15
  16 static void nct5572d_init(struct device *dev)
  17 {
  18         uint8_t byte;
  19         uint8_t power_status;
  20         uint8_t mouse_detected;
  21
  22         if (!dev->enabled)
  23                 return;
  24
  25         switch (dev->path.pnp.device) {
  26         /* TODO: Might potentially need code for HWM or FDC etc. */
  27         case NCT5572D_KBC:
  28                 /* Enable mouse controller */
  29                 pnp_enter_conf_mode(dev);
  30                 byte = pnp_read_config(dev, 0x2a);
  31                 byte &= ~(0x1 << 1);
  32                 pnp_write_config(dev, 0x2a, byte);
  33                 pnp_exit_conf_mode(dev);
  34
  35                 mouse_detected = pc_keyboard_init(PROBE_AUX_DEVICE);
  36
  37                 if (!mouse_detected) {
  38                         printk(BIOS_INFO, "%s: Disable mouse controller.\n",
  39                                         __func__);
  40                         pnp_enter_conf_mode(dev);
  41                         byte = pnp_read_config(dev, 0x2a);
  42                         byte |= 0x1 << 1;
  43                         pnp_write_config(dev, 0x2a, byte);
  44                         pnp_exit_conf_mode(dev);
  45                 }
  46                 break;
  47         case NCT5572D_ACPI:
  48                 /* Set power state after power fail */
  49                 power_status = get_uint_option("power_on_after_fail",
  50                                 CONFIG_MAINBOARD_POWER_FAILURE_STATE);
  51                 pnp_enter_conf_mode(dev);
  52                 pnp_set_logical_device(dev);
  53                 byte = pnp_read_config(dev, 0xe4);
  54                 byte &= ~0x60;
  55                 if (power_status == MAINBOARD_POWER_ON)
  56                         byte |= (0x1 << 5);
  57                 else if (power_status == MAINBOARD_POWER_KEEP)
  58                         byte |= (0x2 << 5);
  59                 pnp_write_config(dev, 0xe4, byte);
  60                 pnp_exit_conf_mode(dev);
  61                 printk(BIOS_INFO, "set power %s after power fail\n", power_status ? "on" : "off");
  62                 break;
  63         }
  64 }
  65
  66 static struct device_operations ops = {
  67         .read_resources   = pnp_read_resources,
  68         .set_resources    = pnp_set_resources,
  69         .enable_resources = pnp_enable_resources,
  70         .enable           = pnp_alt_enable,
  71         .init             = nct5572d_init,
  72         .ops_pnp_mode     = &pnp_conf_mode_8787_aa,
  73 };
  74
  75 static struct pnp_info pnp_dev_info[] = {
  76         { NULL, NCT5572D_FDC}, /* no pins, removed from datasheet */
  77         { NULL, NCT5572D_PP}, /* no pins, removed from datasheet */
  78         { NULL, NCT5572D_SP1, PNP_IO0 | PNP_IRQ0, 0x0FF8, },
  79         { NULL, NCT5572D_IR, PNP_IO0 | PNP_IRQ0, 0x0FF8, },
  80         { NULL, NCT5572D_KBC, PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1,
  81                 0x0FFF, 0x0FFF, },
  82         { NULL, NCT5572D_CIR, PNP_IO0 | PNP_IRQ0, 0x0FF8, },
  83         { NULL, NCT5572D_WDT1},
  84         { NULL, NCT5572D_ACPI},
  85         { NULL, NCT5572D_HWM_TSI_FPLED, PNP_IO0 | PNP_IO1 | PNP_IRQ0,
  86                 0x0FFE, 0x0FFE, },
  87         { NULL, NCT5572D_PECI},
  88         { NULL, NCT5572D_SUSLED},
  89         { NULL, NCT5572D_CIRWKUP, PNP_IO0 | PNP_IRQ0, 0x0FF8, },
  90         { NULL, NCT5572D_GPIO_PP_OD},
  91         { NULL, NCT5572D_GPIO2},
  92         { NULL, NCT5572D_GPIO3},
  93         { NULL, NCT5572D_GPIO4}, /* no pins, removed from datasheet */
  94         { NULL, NCT5572D_GPIO5},
  95         { NULL, NCT5572D_GPIO6},
  96         { NULL, NCT5572D_GPIO7}, /* no pins, removed from datasheet */
  97         { NULL, NCT5572D_GPIO8},
  98         { NULL, NCT5572D_GPIO9},
  99 };
 100
 101 static void enable_dev(struct device *dev)
 102 {
 103         pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
 104 }
 105
 106 struct chip_operations superio_nuvoton_nct5572d_ops = {
 107         .name = "NUVOTON NCT5572D Super I/O",
 108         .enable_dev = enable_dev,
 109 };