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| author | Patrick Rudolph <siro@das-labor.org> | 2017-08-13 12:55:41 +0200 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2018-07-19 16:43:08 +0000 |
| commit | 60eca531df7d13272d9d8b41c7992d18fad75a16 (patch) | |
| tree | eb95ec1e6df0cdf978dea2aa9a93b3440febf43d /src/ec | |
| parent | 94d79a338bb7f035257d3e3137c315eb1b9ea3ae (diff) | |
| download | coreboot-60eca531df7d13272d9d8b41c7992d18fad75a16.tar.xz | |
ec/lenovo/h8/acpi: Add WWAN ACPI methods
Implement GWAN and SWAN for thinkpad_acpi kernel module.
Both methods allow power control of the WWAN module.
Change-Id: I5550c78e0d36884eca7a8d8ece19b64aaee44045
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/20986
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Diffstat (limited to 'src/ec')
| -rw-r--r-- | src/ec/lenovo/h8/acpi/thinkpad.asl | 38 | ||||
| -rw-r--r-- | src/ec/lenovo/h8/ssdt.c | 1 |
2 files changed, 39 insertions, 0 deletions
diff --git a/src/ec/lenovo/h8/acpi/thinkpad.asl b/src/ec/lenovo/h8/acpi/thinkpad.asl index de2fe68192..d0e4234ed9 100644 --- a/src/ec/lenovo/h8/acpi/thinkpad.asl +++ b/src/ec/lenovo/h8/acpi/thinkpad.asl @@ -18,6 +18,7 @@ Device (HKEY) { /* Generated by ssdt.c */ External (\HBDC, IntObj) + External (\HWAN, IntObj) Name (_HID, EisaId ("IBM0068")) @@ -190,4 +191,41 @@ Device (HKEY) /* FIXME: Store state at resume */ } } + + /* + * Returns the current state: + * Bit 0: WWAN HW present + * Bit 1: WWAN radio enabled + * Bit 2: WWAN state at resume + */ + Method (GWAN, 0) + { + If (HWAN) { + Store(One, Local0) + If(\_SB.PCI0.LPCB.EC.WWEB) + { + Or(Local0, 2, Local0) + } + /* FIXME: Implement state at resume, for now Enabled */ + Or(Local0, 4, Local0) + Return (Local0) + } Else { + Return (0) + } + } + + /* + * Set the current state: + * Bit 1: WWAN radio enabled + * Bit 2: WWAN state at resume + */ + Method (SWAN, 1) + { + If (HWAN) { + ShiftRight (And(Arg0, 2), 1, Local0) + Store (Local0, \_SB.PCI0.LPCB.EC.WWEB) + + /* FIXME: Store state at resume */ + } + } } diff --git a/src/ec/lenovo/h8/ssdt.c b/src/ec/lenovo/h8/ssdt.c index 35570b0b72..84a52f5f63 100644 --- a/src/ec/lenovo/h8/ssdt.c +++ b/src/ec/lenovo/h8/ssdt.c @@ -46,6 +46,7 @@ void h8_ssdt_generator(struct device *dev) /* Used by thinkpad_acpi */ acpigen_write_name_byte("HBDC", h8_has_bdc(dev) ? ONE_OP : ZERO_OP); + acpigen_write_name_byte("HWAN", h8_has_wwan(dev) ? ONE_OP : ZERO_OP); acpigen_pop_len(); /* Scope HKEY */ } |