[coreboot-gerrit] Change in coreboot[master]: driver/wifi: Add _DSM method for DDRRFIM

[Varshit B Pandya (Code Review)]

Attention is currently required from: Varshit B Pandya, Subrata Banik, Maulik V Vaghela, Tim Wawrzynczak, Sugnan Prabhu S.
Hello build bot (Jenkins), Subrata Banik, Maulik V Vaghela, Tim Wawrzynczak, Rizwan Qureshi, Sugnan Prabhu S, Tim Wawrzynczak,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/61020

to look at the new patch set (#23).

Change subject: driver/wifi: Add _DSM method for DDRRFIM
......................................................................

driver/wifi: Add _DSM method for DDRRFIM

coreboot needs to propagate the CnviDdrRfim value info of the feature
enable/disable state into the CNVi via the WiFi DSM ACPI object. This
will be consumed by the Wi-Fi driver and it will act according to
CB enablement configuration. This patch adds _DSM method for that.

Add support for following 2 functions in _DSM method

- Function 0: Function Support Query Returns a bitmask of functions
  supported.
- Function 3: RFI enablement 0 Feature Enable 1 Feature Disable

BUG=b:201724512
TEST=Build, boot brya0 and dump SSDT entries

Method (_DSM, 4, Serialized) // _DSM: Device-Specific Method
{
    ToBuffer (Arg0, Local0)
    If ((Local0 == ToUUID ("7266172c-220b-4b29-814f-75e4dd26b5fd")))
    {
    	ToInteger (Arg2, Local1)
    	If ((Local1 == Zero))
    	{
    		Return (Buffer (One)
    		{
    			0x09
    		})
    	}

If ((Local1 == One)){}
    	If ((Local1 == 0x02)){}
    	If ((Local1 == 0x03))
    	{
    		Return (Zero)
    	}

Return (Buffer (One)
    	{
    		0x00
    	})
    }

Return (Buffer (One)
    {
    	0x00
    })
}

Signed-off-by: Varshit B Pandya 
Change-Id: I217b736df3d4224a6732d1941a160abcddbd8f37
---
M src/drivers/wifi/generic/acpi.c
1 file changed, 67 insertions(+), 6 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/20/61020/23