src/mainboard/getac/p470/smihandler.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <arch/io.h>
   4 #include <console/console.h>
   5 #include <cpu/x86/smm.h>
   6 #include <southbridge/intel/i82801gx/i82801gx.h>
   7 #include <soc/nvs.h>
   8 #include <southbridge/intel/common/gpio.h>
   9 #include <ec/acpi/ec.h>
  10 #include "ec_oem.c"
  11
  12 #define MAX_LCD_BRIGHTNESS 0xd8
  13
  14 int mainboard_io_trap_handler(int smif)
  15 {
  16         u8 reg8;
  17         u32 reg32;
  18
  19         switch (smif) {
  20         case 0x2b:
  21                 printk(BIOS_DEBUG, "CPU power state switch\n");
  22                 // TODO, move to CPU handler?
  23                 break;
  24         case 0x3d:
  25                 printk(BIOS_DEBUG, "Enable C-State SMM coordination\n");
  26                 // TODO, move to CPU handler?
  27                 break;
  28         case 0x46:
  29                 printk(BIOS_DEBUG, "S3 DTS SMI (completely re-enable DTS)\n");
  30                 // TODO, move to CPU handler?
  31                 break;
  32         case 0x47:
  33                 printk(BIOS_DEBUG, "S4 DTS SMI (Update NVS DTS temperature)\n");
  34                 // TODO, move to CPU handler?
  35                 break;
  36         case 0xc0:
  37                 printk(BIOS_DEBUG, "Disable RF\n");
  38                 // TODO
  39                 break;
  40         case 0xd0:
  41                 printk(BIOS_DEBUG, "ACBS LAN Power on\n");
  42                 // TODO
  43                 break;
  44         case 0xd1:
  45                 printk(BIOS_DEBUG, "ACBS LAN Power off\n");
  46                 // TODO
  47                 break;
  48         case 0xd2:
  49                 printk(BIOS_DEBUG, "Check AC status\n");
  50                 // TODO
  51                 break;
  52         case 0xd3:
  53                 printk(BIOS_DEBUG, "Enable Bluetooth\n");
  54                 // TODO
  55                 break;
  56         case 0xd4:
  57                 printk(BIOS_DEBUG, "Disable Bluetooth\n");
  58                 // TODO
  59                 break;
  60         case 0xd5:
  61                 printk(BIOS_DEBUG, "Set Brightness\n");
  62                 reg8 = gnvs->brtl;
  63                 printk(BIOS_DEBUG, "brtl: %x\n", reg8);
  64                 ec_write(0x17, reg8);
  65                 break;
  66         case 0xd6:
  67                 printk(BIOS_DEBUG, "Get Brightness\n");
  68                 reg8 = ec_read(0x17);
  69                 printk(BIOS_DEBUG, "brtl: %x\n", reg8);
  70                 gnvs->brtl = reg8;
  71                 break;
  72         case 0xd7:
  73                 printk(BIOS_DEBUG, "Get ECO mode status\n");
  74                 // TODO
  75                 break;
  76         case 0xd8:
  77                 printk(BIOS_DEBUG, "Get sunlight readable status\n");
  78                 // TODO
  79                 break;
  80         case 0xd9:
  81                 printk(BIOS_DEBUG, "Get docking connection\n");
  82                 // TODO
  83                 break;
  84         case 0xda:
  85                 printk(BIOS_DEBUG, "Power off docking\n");
  86                 // TODO
  87                 break;
  88         case 0xdc:
  89                 printk(BIOS_DEBUG, "EC: Turn on LED on ECO enable\n");
  90                 // TODO
  91                 break;
  92         case 0xdd:
  93                 printk(BIOS_DEBUG, "EC: Turn off LED on ECO disable\n");
  94                 // TODO
  95                 break;
  96         case 0xde:
  97                 printk(BIOS_DEBUG, "LAN power off\n");
  98                 reg32 = inl(DEFAULT_GPIOBASE + GP_LVL);
  99                 reg32 |= (1 << 24);                     // Disable LAN Power
 100                 outl(reg32, DEFAULT_GPIOBASE + GP_LVL);
 101                 break;
 102         case 0xdf:
 103                 printk(BIOS_DEBUG, "RF enable\n");
 104                 // TODO
 105                 break;
 106         case 0xe0:
 107                 printk(BIOS_DEBUG, "Get RTC wake flag\n");
 108                 // TODO
 109                 break;
 110         case 0xe1:
 111                 printk(BIOS_DEBUG, "Hotkey function\n");
 112                 // TODO
 113                 break;
 114         case 0xe3:
 115                 printk(BIOS_DEBUG, "ECO disable\n");
 116                 // TODO
 117                 break;
 118         default:
 119                 return 0;
 120         }
 121
 122         /* gnvs->smif:
 123          *   On success, the IO Trap Handler returns 0
 124          *   On failure, the IO Trap Handler returns a value != 0
 125          */
 126         gnvs->smif = 0;
 127         return 1;
 128 }
 129
 130 static void mainboard_smi_hotkey(u8 hotkey)
 131 {
 132         u8 reg8;
 133
 134         switch (hotkey) {
 135         case 0x3b: break; // Fn+F1
 136         case 0x3c: break; // Fn+F2
 137         case 0x3d: break; // Fn+F3
 138         case 0x3e: break; // Fn+F4
 139         case 0x3f: break; // Fn+F5
 140         case 0x40:        // Fn+F6 (Decrease Display Brightness)
 141                    reg8 = ec_read(0x17);
 142                    reg8 = (reg8 > 8) ? (reg8 - 8) : 0;
 143                    ec_write(0x17, reg8);
 144                    return;
 145         case 0x41:        // Fn+F7 (Increase Display Brightness)
 146                    reg8 = ec_read(0x17);
 147                    reg8 += 8;
 148                    reg8 = (reg8 >= MAX_LCD_BRIGHTNESS) ? MAX_LCD_BRIGHTNESS : reg8;
 149                    ec_write(0x17, reg8);
 150                    return;
 151         case 0x42: break; // Fn+F8
 152         case 0x43: break; // Fn+F9
 153         case 0x44: break; // Fn+F10
 154         case 0x57: break; // Fn+F11
 155         case 0x58: break; // Fn+F12
 156         }
 157         printk(BIOS_DEBUG, "EC hotkey: %02x\n", hotkey);
 158 }
 159
 160 void mainboard_smi_gpi(u32 gpi_sts)
 161 {
 162         u8 source, hotkey;
 163         send_ec_oem_command(0x5c);
 164         source = recv_ec_oem_data();
 165
 166         switch (source) {
 167         case 0:
 168                 // Some kind of ACK?
 169                 break;
 170         case 1:
 171                 send_ec_oem_command(0x59);
 172                 hotkey = recv_ec_oem_data();
 173                 mainboard_smi_hotkey(hotkey);
 174                 break;
 175         default:
 176                 printk(BIOS_DEBUG, "EC SMI source: %02x\n", source);
 177         }
 178 }