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authorPatrick Rudolph <siro@das-labor.org>2017-08-14 18:41:32 +0200
committerFelix Held <felix-coreboot@felixheld.de>2018-07-19 16:48:19 +0000
commitf281b6d175905e625f481bf8b8a2b7b10d037582 (patch)
treefa254daeb34cf39661fe1d8e50ba2cfd59c6154b /src/ec/lenovo/h8
parent6b7178aa107ef7e2475e3b1f32ac849d98798406 (diff)
downloadcoreboot-f281b6d175905e625f481bf8b8a2b7b10d037582.tar.xz
ec/lenovo/h8/ssdt: Add UWB ACPI interface
Add ACPI methods GUWB and SUWB for thinkpad_acpi. Required for power control of the UWB module. Change-Id: I8f9a56e45c0d765b0e06b8d3600bd3575dd09491 Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/21003 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Diffstat (limited to 'src/ec/lenovo/h8')
-rw-r--r--src/ec/lenovo/h8/acpi/ec.asl3
-rw-r--r--src/ec/lenovo/h8/acpi/thinkpad.asl32
-rw-r--r--src/ec/lenovo/h8/ssdt.c2
3 files changed, 37 insertions, 0 deletions
diff --git a/src/ec/lenovo/h8/acpi/ec.asl b/src/ec/lenovo/h8/acpi/ec.asl
index 17afba2dec..8a1b9c4343 100644
--- a/src/ec/lenovo/h8/acpi/ec.asl
+++ b/src/ec/lenovo/h8/acpi/ec.asl
@@ -46,6 +46,9 @@ Device(EC)
Offset (0x30),
, 6,
ALMT, 1, /* Audio Mute + LED */
+ Offset (0x31),
+ , 2,
+ UWBE, 1, /* Ultra Wideband enable */
Offset (0x3a),
AMUT, 1, /* Audio Mute (internal use) */
, 3,
diff --git a/src/ec/lenovo/h8/acpi/thinkpad.asl b/src/ec/lenovo/h8/acpi/thinkpad.asl
index a0812e5d48..e67bc8f65f 100644
--- a/src/ec/lenovo/h8/acpi/thinkpad.asl
+++ b/src/ec/lenovo/h8/acpi/thinkpad.asl
@@ -20,6 +20,7 @@ Device (HKEY)
External (\HBDC, IntObj)
External (\HWAN, IntObj)
External (\HKBL, IntObj)
+ External (\HUWB, IntObj)
Name (_HID, EisaId ("IBM0068"))
@@ -259,4 +260,35 @@ Device (HKEY)
Store (And(Arg0, 1), \_SB.PCI0.LPCB.EC.WWEB)
}
}
+
+ /*
+ * Returns the current state:
+ * Bit 0: UWB HW present
+ * Bit 1: UWB radio enabled
+ */
+ Method (GUWB, 0)
+ {
+ If (HUWB) {
+ Store (One, Local0)
+ If(\_SB.PCI0.LPCB.EC.UWBE)
+ {
+ Or(Local0, 2, Local0)
+ }
+ Return (Local0)
+ } Else {
+ Return (0)
+ }
+ }
+
+ /*
+ * Set the current state:
+ * Bit 1: UWB radio enabled
+ */
+ Method (SUWB, 1)
+ {
+ If (HUWB) {
+ ShiftRight (And(Arg0, 2), 1, Local0)
+ Store (Local0, \_SB.PCI0.LPCB.EC.UWBE)
+ }
+ }
}
diff --git a/src/ec/lenovo/h8/ssdt.c b/src/ec/lenovo/h8/ssdt.c
index 4df4bd8a87..eccefe25ee 100644
--- a/src/ec/lenovo/h8/ssdt.c
+++ b/src/ec/lenovo/h8/ssdt.c
@@ -51,6 +51,8 @@ void h8_ssdt_generator(struct device *dev)
acpigen_write_name_byte("HWAN", h8_has_wwan(dev) ? ONE_OP : ZERO_OP);
acpigen_write_name_byte("HKBL", (conf && conf->has_keyboard_backlight) ?
ONE_OP : ZERO_OP);
+ acpigen_write_name_byte("HUWB", (conf && conf->has_uwb) ?
+ ONE_OP : ZERO_OP);
acpigen_pop_len(); /* Scope HKEY */
}