Re: [Qemu-devel] [SeaBIOS] [RFC][PATCH 1/2] acpi: add ASL for Embedded Controller

[Marc Jones]

What EC is this for? The device and interface is defined by the spec, but the offsets and methods are custom for every EC.

Marc

On Wed, Apr 17, 2013 at 1:22 AM, liguang <address@hidden> wrote:

defined at ACPI SPEC v5 chapter 12:
"ACPI Embedded Controller Interface Specification"

Signed-off-by: liguang <address@hidden>
---
 src/acpi-dsdt-ec.dsl |  106 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 106 insertions(+), 0 deletions(-)
 create mode 100644 src/acpi-dsdt-ec.dsl

diff --git a/src/acpi-dsdt-ec.dsl b/src/acpi-dsdt-ec.dsl
new file mode 100644
index 0000000..6bd8edd
--- /dev/null
+++ b/src/acpi-dsdt-ec.dsl
@@ -0,0 +1,106 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+
+Device (EC0)
+{
+       Name (_HID, EISAID ("PNP0C09"))
+       Name(_UID, 1)
+
+       Method(_CRS, 0)
+       {
+       Name(BFFR, ResourceTemplate()
+       {
+               IO(Decode16, 0x62, 0x62, 0, 1)      // ACPI DATA IN/OUT
+               IO(Decode16, 0x66, 0x66, 0, 1)      // CMD/STS
+               IRQ(Edge, ActiveHigh, Exclusive) {0x0B}
+       })
+    Return(BFFR)
+       }
+
+       OperationRegion(ECF0, EmbeddedControl, 0, 0xFF)
+    Field(ECF2, ByteAcc, Lock, Preserve)
+       {
+               Offset(1),
+               STMP,   8,      // 1,      Sensor Temperature
+               ACPW,   8,      // 2,      AC Power (AC Present = 1, else 0)
+               LIDS,   8,      // 3,      Lid State (Lid Open = 1, else 0)
+               PBNS,   8,      // 4,      Power Button State (Pressed = 1, else 0)
+               BTST,   8,      // 5,      Battery Status
+               BTCR,   8,      // 6,      Battery Current Rate
+               BTCC,   8,      // 7,      Battery Current Capacity
+               BTVT,   8,      // 8,      Battery Voltage
+               offset(0x10),
+               SPTR,   8,      // 5,      SMBus Protocol Register
+               SSTS,   8,      // 5,      SMBus Status Register
+               SADR,   8,      // 6,      SMBus Address Register
+               SCMD,   8,      // 7,      SMBus Command Register
+               SBFR,   256,    // 8,      SMBus Block Buffer
+               SCNT,   8,      // 40,     SMBus Block Count
+       }
+
+       Method(_REG, 2)
+       {
+       }
+
+       /* AC status: present */
+       Method(_Q01, 0, NotSerialized)
+       {
+               Notify (AC, 0x80)
+       }
+
+       /* AC status: dispear*/
+       Method(_Q02, 0, NotSerialized)
+       {
+               Notify (AC, 0x80)
+       }
+
+    Method(_Q04, 0, NotSerialized)
+    {
+       Notify(LID, 0x80)
+    }
+
+    Method(_Q04, 0, NotSerialized)
+    {
+       Notify(LID, 0x80)
+    }
+
+       Device(AC)
+       {
+               Name(_HID, "ACPI0003")
+               Name(_UID, 0x00)
+               Name(_PCL, Package() { \_SB } )
+
+               Method(_PSR, 0, NotSerialized)
+               {
+                       return (ACPW)
+               }
+
+               Method(_STA, 0, NotSerialized)
+               {
+                       Return (0x0f)
+               }
+       }
+
+       Device(LID)
+       {
+               Name(_HID, "PNP0C0D")
+
+               Method(_LID, 0, NotSerialized)
+               {
+                       return (LIDS)
+               }
+       }
+}
--
1.7.2.5


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