[coreboot-gerrit] Change in coreboot[master]: ec/lenovo/h8/ssdt: Add WWAN ACPI methods
Patrick Rudolph (Code Review)
gerrit at coreboot.org
Sun Aug 13 17:41:44 CEST 2017
Patrick Rudolph has uploaded this change for review. ( https://review.coreboot.org/20986
Change subject: ec/lenovo/h8/ssdt: Add WWAN ACPI methods
......................................................................
ec/lenovo/h8/ssdt: Add WWAN ACPI methods
Implement GWAN and SWAN for thinkpad_acpi kernel module.
Change-Id: I5550c78e0d36884eca7a8d8ece19b64aaee44045
Signed-off-by: Patrick Rudolph <siro at das-labor.org>
---
M src/ec/lenovo/h8/ssdt.c
1 file changed, 67 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/86/20986/1
diff --git a/src/ec/lenovo/h8/ssdt.c b/src/ec/lenovo/h8/ssdt.c
index eb9f2c1..cfc3304 100644
--- a/src/ec/lenovo/h8/ssdt.c
+++ b/src/ec/lenovo/h8/ssdt.c
@@ -102,6 +102,72 @@
acpigen_pop_len(); /* Method */
}
+/* Generate ACPI methods GWAN and SWAN */
+static void h8_dsdt_wwan(struct device *dev)
+{
+ const bool has_wwan = h8_has_wwan(dev);
+ /* Method (GWAN, 0) */
+ acpigen_write_method("GWAN", 0);
+ /* Store(Zero, Local0) */
+ acpigen_write_store_ops(ZERO_OP, LOCAL0_OP);
+ if (has_wwan) {
+ /* WWAN present */
+ /* Or(Local0, One, Local0) */
+ acpigen_write_or(LOCAL0_OP, ONE_OP, LOCAL0_OP);
+
+ /* If(LEqual(\_SB.PCI0.LPCB.EC.WWEB, One)) */
+ acpigen_write_if();
+ acpigen_emit_byte(LEQUAL_OP);
+ acpigen_emit_namestring(h8_dsdt_scope(dev, "WWEB"));
+ acpigen_emit_byte(ONE_OP);
+
+ /* Or(Local0, 2, Local0) */
+ acpigen_emit_byte(OR_OP);
+ acpigen_emit_byte(LOCAL0_OP);
+ acpigen_write_integer(2);
+ acpigen_emit_byte(LOCAL0_OP);
+ acpigen_pop_len(); /* If */
+
+ /* State at resume: Enabled */
+ /* Or(Local0, 4, Local0) */
+ acpigen_emit_byte(OR_OP);
+ acpigen_emit_byte(LOCAL0_OP);
+ acpigen_write_integer(4);
+ acpigen_emit_byte(LOCAL0_OP);
+ }
+ /* Return(Local0) */
+ acpigen_emit_byte(RETURN_OP);
+ acpigen_emit_byte(LOCAL0_OP);
+ acpigen_pop_len(); /* Method */
+
+ /* Method (SWAN, 0) */
+ acpigen_write_method("SWAN", 1);
+ if (has_wwan) {
+ /* And(Arg0, 2, Local0) */
+ acpigen_emit_byte(AND_OP);
+ acpigen_emit_byte(ARG0_OP);
+ acpigen_write_integer(2);
+ acpigen_emit_byte(LOCAL0_OP);
+ /* If(Lequal(Local0, 2)) */
+ acpigen_write_if_lequal_op_int(LOCAL0_OP, 2);
+ /* Store(One, \_SB.PCI0.LPCB.EC.WWEB) */
+ acpigen_write_store();
+ acpigen_emit_byte(ONE_OP);
+ acpigen_emit_namestring(h8_dsdt_scope(dev, "WWEB"));
+ acpigen_pop_len(); /* If */
+ /* Else */
+ acpigen_write_else();
+ /* Store(Zero, \_SB.PCI0.LPCB.EC.WWEB) */
+ acpigen_write_store();
+ acpigen_emit_byte(ZERO_OP);
+ acpigen_emit_namestring(h8_dsdt_scope(dev, "WWEB"));
+ acpigen_pop_len(); /* Else */
+
+ /* FIXME: Implement state at resume */
+ }
+ acpigen_pop_len(); /* Method */
+}
+
/*
* Generates EC SSDT.
*/
@@ -117,6 +183,7 @@
/* Used by thinkpad_acpi */
h8_dsdt_bluetooth(dev);
+ h8_dsdt_wwan(dev);
acpigen_pop_len(); /* Scope HKEY */
}
--
To view, visit https://review.coreboot.org/20986
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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I5550c78e0d36884eca7a8d8ece19b64aaee44045
Gerrit-Change-Number: 20986
Gerrit-PatchSet: 1
Gerrit-Owner: Patrick Rudolph <siro at das-labor.org>
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