X60: use EC events 0x50/0x58 instead of GPIO GPE for Docking/Undocking

[coreboot.git] / src / mainboard / lenovo / x60 / mainboard_smi.c

diff --git a/src/mainboard/lenovo/x60/mainboard_smi.c b/src/mainboard/lenovo/x60/mainboard_smi.c
index 78f7f2a4f62ec4b9e466dc4b90d664b245a3adf5..34f1d36bb1d80db2d68882e66f30959411aa0a87 100644 (file)
--- a/src/mainboard/lenovo/x60/mainboard_smi.c
+++ b/src/mainboard/lenovo/x60/mainboard_smi.c
@@ -24,7 +24,10 @@
 #include <console/console.h>
 #include <cpu/x86/smm.h>
 #include "southbridge/intel/i82801gx/nvs.h"
+#include "southbridge/intel/i82801gx/i82801gx.h"
 #include <ec/acpi/ec.h>
+#include <pc80/mc146818rtc.h>
+#include <ec/lenovo/h8/h8.h>
 #include "dock.h"
 #include "smi.h"
 
@@ -38,7 +41,23 @@ static void mainboard_smm_init(void)
        printk(BIOS_DEBUG, "initializing SMI\n");
        /* Enable 0x1600/0x1600 register pair */
        ec_set_bit(0x00, 0x05);
-       ec_set_ports(0x1604, 0x1600);
+}
+
+static void mainboard_smi_save_cmos(void)
+{
+       u8 val;
+       u8 tmp70, tmp72;
+
+       tmp70 = inb(0x70);
+       tmp72 = inb(0x72);
+
+       val = pci_read_config8(PCI_DEV(0, 2, 1), 0xf4);
+       set_option("tft_brightness", &val);
+       val = ec_read(H8_VOLUME_CONTROL);
+       set_option("volume", &val);
+
+       outb(tmp70, 0x70);
+       outb(tmp72, 0x72);
 }
 
 int mainboard_io_trap_handler(int smif)
@@ -52,26 +71,137 @@ int mainboard_io_trap_handler(int smif)
 
        switch (smif) {
        case SMI_DOCK_CONNECT:
+               ec_clr_bit(0x03, 2);
                dlpc_init();
-               if (!dock_connect()) {
+               if (!dlpc_init() && !dock_connect()) {
+                       ec_set_bit(0x03, 2);
                        /* set dock LED to indicate status */
+                       ec_write(0x0c, 0x09);
                        ec_write(0x0c, 0x88);
                } else {
                        /* blink dock LED to indicate failure */
-                       ec_write(0x0c, 0xc8);
+                       ec_write(0x0c, 0x08);
+                       ec_write(0x0c, 0xc9);
                }
                break;
 
        case SMI_DOCK_DISCONNECT:
+               ec_clr_bit(0x03, 2);
                dock_disconnect();
-               ec_write(0x0c, 0x08);
                break;
 
+       case SMI_SAVE_CMOS:
+               mainboard_smi_save_cmos();
+               break;
        default:
-               return 1;
+               return 0;
+       }
+
+       /* On success, the IO Trap Handler returns 1
+        * On failure, the IO Trap Handler returns a value != 1 */
+       return 1;
+}
+
+static void mainboard_smi_brightness_up(void)
+{
+       u8 value;
+
+       if ((value = pci_read_config8(PCI_DEV(0, 2, 1), 0xf4)) < 0xf0)
+               pci_write_config8(PCI_DEV(0, 2, 1), 0xf4, (value + 0x10) | 0xf);
+}
+
+static void mainboard_smi_brightness_down(void)
+{
+       u8 value;
+
+       if ((value = pci_read_config8(PCI_DEV(0, 2, 1), 0xf4)) > 0x10)
+               pci_write_config8(PCI_DEV(0, 2, 1), 0xf4, (value - 0x10) & 0xf0);
+}
+
+static void mainboard_smi_handle_ec_sci(void)
+{
+       u8 status = inb(EC_SC);
+       u8 event;
+
+       if (!(status & EC_SCI_EVT))
+               return;
+
+       event = ec_query();
+       printk(BIOS_DEBUG, "EC event %02x\n", event);
+
+       switch(event) {
+               /* brightness up */
+               case 0x14:
+                       mainboard_smi_brightness_up();
+                       mainboard_smi_save_cmos();
+                       break;
+               /* brightness down */
+               case 0x15:
+                       mainboard_smi_brightness_down();
+                       mainboard_smi_save_cmos();
+                       break;
+                       /* Fn-F9 key */
+               case 0x18:
+                       /* Power loss */
+               case 0x27:
+                       /* Undock Key */
+               case 0x50:
+                       mainboard_io_trap_handler(SMI_DOCK_DISCONNECT);
+                       break;
+                       /* Dock Event */
+               case 0x37:
+               case 0x58:
+                       mainboard_io_trap_handler(SMI_DOCK_CONNECT);
+                       break;
+               default:
+                       break;
        }
+}
 
-       /* On success, the IO Trap Handler returns 0
-        * On failure, the IO Trap Handler returns a value != 0 */
+void mainboard_smi_gpi(u16 gpi)
+{
+       if (gpi & (1 << 12))
+               mainboard_smi_handle_ec_sci();
+}
+
+int mainboard_apm_cnt(u8 data)
+{
+       u16 pmbase = pci_read_config16(PCI_DEV(0, 0x1f, 0), 0x40) & 0xfffc;
+       u8 tmp;
+
+       printk(BIOS_DEBUG, "%s: pmbase %04X, data %02X\n", __func__, pmbase, data);
+
+       if (!pmbase)
+               return 0;
+
+       switch(data) {
+               case APM_CNT_ACPI_ENABLE:
+                       /* use 0x1600/0x1604 to prevent races with userspace */
+                       ec_set_ports(0x1604, 0x1600);
+                       /* route H8SCI to SCI */
+                       outw(inw(ALT_GP_SMI_EN) & ~0x1000, pmbase + ALT_GP_SMI_EN);
+                       tmp = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xbb);
+                       tmp &= ~0x03;
+                       tmp |= 0x02;
+                       pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xbb, tmp);
+                       /* discard all events, and enable attention */
+                       ec_write(0x80, 0x01);
+                       break;
+               case APM_CNT_ACPI_DISABLE:
+                       /* we have to use port 0x62/0x66, as 0x1600/0x1604 doesn't
+                          provide a EC query function */
+                       ec_set_ports(0x66, 0x62);
+                       /* route H8SCI# to SMI */
+                       outw(inw(pmbase + ALT_GP_SMI_EN) | 0x1000, pmbase + ALT_GP_SMI_EN);
+                       tmp = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xbb);
+                       tmp &= ~0x03;
+                       tmp |= 0x01;
+                       pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xbb, tmp);
+                       /* discard all events, and enable attention */
+                       ec_write(0x80, 0x01);
+                       break;
+               default:
+                       break;
+       }
        return 0;
 }