[coreboot-gerrit] [M] Change in coreboot[main]: drivers/usb/acpi: Add a Power Resource for Intel Bluetooth

[Felix Held (Code Review)]

Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/84146?usp=email )

Change subject: drivers/usb/acpi: Add a Power Resource for Intel Bluetooth
......................................................................

drivers/usb/acpi: Add a Power Resource for Intel Bluetooth

Add a Power Resource for Intel Bluetooth, that can reset
the Bluetooth using the delay configured in the DSM.

Change-Id: I3b25fd180e21100e3cb001fc6ba0da7f47b2ad12
Signed-off-by: Sean Rhodes 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84146
Reviewed-by: Matt DeVillier 
Tested-by: build bot (Jenkins) 
---
M src/drivers/usb/acpi/usb_acpi.c
1 file changed, 67 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Matt DeVillier: Looks good to me, approved

diff --git a/src/drivers/usb/acpi/usb_acpi.c b/src/drivers/usb/acpi/usb_acpi.c
index b01c949..3a9db30 100644
--- a/src/drivers/usb/acpi/usb_acpi.c
+++ b/src/drivers/usb/acpi/usb_acpi.c
@@ -129,6 +129,73 @@
    };

acpigen_write_dsm_uuid_arr(uuid_callbacks, ARRAY_SIZE(uuid_callbacks));
+/*
+ *	PowerResource (BTRT, 0x05, 0x0000)
+ *	{
+ *		Method (_STA, 0, NotSerialized)
+ *		{
+ *			Return (One)
+ *		}
+ *		Method (_ON, 0, NotSerialized)
+ *		{
+ *		}
+ *		Method (_OFF, 0, NotSerialized)
+ *		{
+ *		}
+ *		Method (_RST, 0, NotSerialized)
+ *		{
+ *			Local0 = Acquire (CNMT, 0x03E8)
+ *			If ((Local0 == Zero))
+ *			{
+ *				BTRK (Zero)
+ *				Sleep (RDLY)
+ *				BTRK (One)
+ *				Sleep (RDLY)
+ *			}
+ *			Release (CNMT)
+ *		}
+ *	}
+ */
+	acpigen_write_power_res("BTRT", 5, 0, NULL, 0);
+	{
+		acpigen_write_method("_STA", 0);
+		{
+			acpigen_write_return_integer(1);
+		}
+		acpigen_pop_len();
+
+		acpigen_write_method("_ON", 0);
+		acpigen_pop_len();
+
+		acpigen_write_method("_OFF", 0);
+		acpigen_pop_len();
+
+		acpigen_write_method("_RST", 0);
+		{
+			acpigen_write_store();
+			acpigen_write_acquire("CNMT", 0x03e8);
+			acpigen_emit_byte(LOCAL0_OP);
+
+			acpigen_write_if_lequal_op_int(LOCAL0_OP, 0);
+			{
+				acpigen_emit_namestring("BTRK");
+				acpigen_emit_byte(0);
+
+				acpigen_emit_ext_op(SLEEP_OP);
+				acpigen_emit_namestring("RDLY");
+
+				acpigen_emit_namestring("BTRK");
+				acpigen_emit_byte(1);
+
+				acpigen_emit_ext_op(SLEEP_OP);
+				acpigen_emit_namestring("RDLY");
+			}
+			acpigen_pop_len();
+			acpigen_write_release("CNMT");
+		}
+		acpigen_pop_len();
+	}
+	acpigen_write_power_res_end();
 }

static bool usb_acpi_add_gpios_to_crs(struct drivers_usb_acpi_config *cfg)