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authorSven Schnelle <svens@stackframe.org>2011-06-12 16:49:13 +0200
committerSven Schnelle <svens@stackframe.org>2011-06-15 08:51:36 +0200
commit8b39e07d04e7231e655124d539356c2462ab6a18 (patch)
tree4029cdfab101ba9b394307e458efbb2075bfd956 /src
parent4297a9a101f342ed9699848c8d55f26f78b3816c (diff)
X60: handle EC events in SMM if ACPI is disabled
Change-Id: I0fee890bd2d667b54965201f5c90da3656d7af5c Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/27 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/lenovo/x60/devicetree.cb4
-rw-r--r--src/mainboard/lenovo/x60/mainboard_smi.c92
2 files changed, 94 insertions, 2 deletions
diff --git a/src/mainboard/lenovo/x60/devicetree.cb b/src/mainboard/lenovo/x60/devicetree.cb
index b708dce61d..42a45d1a5c 100644
--- a/src/mainboard/lenovo/x60/devicetree.cb
+++ b/src/mainboard/lenovo/x60/devicetree.cb
@@ -53,13 +53,13 @@ chip northbridge/intel/i945
# 1 SMI# (if corresponding ALT_GPI_SMI_EN bit is also set)
# 2 SCI (if corresponding GPIO_EN bit is also set)
register "gpi13_routing" = "2"
- register "gpi12_routing" = "2"
+ register "gpi12_routing" = "1"
register "gpi8_routing" = "2"
register "sata_ahci" = "0x0"
register "gpe0_en" = "0x11000006"
-
+ register "alt_gp_smi_en" = "0x1000"
device pci 1b.0 on # Audio Cnotroller
subsystemid 0x17aa 0x2010
end
diff --git a/src/mainboard/lenovo/x60/mainboard_smi.c b/src/mainboard/lenovo/x60/mainboard_smi.c
index 769432f618..fd10c9a9a4 100644
--- a/src/mainboard/lenovo/x60/mainboard_smi.c
+++ b/src/mainboard/lenovo/x60/mainboard_smi.c
@@ -24,6 +24,7 @@
#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>
@@ -98,3 +99,94 @@ int mainboard_io_trap_handler(int smif)
* 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;
+ default:
+ break;
+ }
+}
+
+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;
+}