Commit graph

9 commits

Author SHA1 Message Date
Furquan Shaikh
7536a398e9 device: Constify struct device * parameter to acpi_fill_ssdt()
.acpi_fill_ssdt() does not need to modify the device structure. This
change makes the struct device * parameter to acpi_fill_ssdt() as
const.

Change-Id: I110f4c67c3b6671c9ac0a82e02609902a8ee5d5c
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40710
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-04-28 19:50:26 +00:00
Joel Kitching
a1b15172d7 create stdio.h and stdarg.h for {,v}snprintf
Sometimes coreboot needs to compile external code (e.g.
vboot_reference) using its own set of system header files.
When these headers don't line up with C Standard Library,
it causes problems.

Create stdio.h and stdarg.h header files.  Relocate snprintf
into stdio.h and vsnprintf into stdarg.h from string.h.
Chain include these header files from string.h, since coreboot
doesn't care so much about the legacy POSIX location of these
functions.

Also move va_* definitions from vtxprintf.h into stdarg.h where
they belong (in POSIX).  Just use our own definitions regardless
of GCC or LLVM.

Add string.h header to a few C files which should have had it
in the first place.

BUG=b:124141368
TEST=make clean && make test-abuild
BRANCH=none

Change-Id: I7223cb96e745e11c82d4012c6671a51ced3297c2
Signed-off-by: Joel Kitching <kitching@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39468
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
2020-03-25 23:38:46 +00:00
Patrick Rudolph
1ac2cc253b superio/common: Validate devicetree
As the SSDT generator for LDNs expects a "parent" PNP device
for proper ACPI code generation, validate that it is present.

Make sure the devicetree looks as expected and print a BUG message
if that's not the case.

Tested on HP Z220:
No BUG message was printed.

Change-Id: I6cbcba8ac86a2a837e23055fdd7e529f9b3277a2
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38863
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-02-28 16:14:38 +00:00
Felix Held
3f3eca9b32 src/superio: replace license boilerplate with SPDX
The authors from the header of the files are added in a previous commit.

Change-Id: Iafeaafb9689c65bd2f5de3960097ec0d4c1009e7
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38544
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-01-30 12:08:41 +00:00
Patrick Rudolph
c83bab62b3 acpi: Be more ACPI compliant when generating _UID
* Add function to generate unique _UID using CRC32
* Add function to write the _UID based on a device's ACPI path

ACPI devices that have the same _HID must use different _UID.
Linux doesn't care about _UID if it's not used.
Windows 10 verifies the ACPI code on boot and BSODs if two devices
with the same _HID share the same _UID.

Fixes BSOD seen on Windows 10.

Change-Id: I47cd5396060d325f9ce338afced6af021e7ff2b4
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37695
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2020-01-09 14:22:51 +00:00
Patrick Rudolph
5c8ff794a8 superio/common/ssdt: Make disabled PNP devices ACPI compliant
Always write a _HID, even for disabled PNP devices.

Fixes a BSOD on Windows 10.

Change-Id: I419a08bd6a3570fb4e1ae31bef4f9ccd6836fe1b
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37692
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2020-01-09 14:22:29 +00:00
Patrick Rudolph
95bff2e17e superio/common: Add more ACPI methods
* Make use of introduced SSDT config mode access
* Make use of introduced SSDT mutex
* Provide ACPI functions to safely access SIO config space
* Implement method to query LDN enable state
* Implement method to set LDN enable state
* Use introduced functions to implement _DIS and _STA in the device
* Update documentation

Tested on Aspeed AST2500 and Linux 5.2.
Manually verified ACPI code that generates no errors in Linux.

Change-Id: I520b29de925f368cd71ff8f1f58d2d57d72eff8d
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37640
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2019-12-22 13:47:55 +00:00
Patrick Georgi
28cbab3956 superio/common: Fix types in printf
Found by Coverity Scan #1405310

Change-Id: I53146e7fc402500effc63ce276ecfce4d72a4f7f
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35433
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-09-17 10:33:40 +00:00
Patrick Rudolph
c162131d00 superio/common: Add ssdtgen for generic SuperIOs
Add a generic SuperIO ACPI generator, dropping the need to include
additional code in DSDT for SuperIO.

It generates a device HID based on the decoded I/O range.

Tested on Supermicro X11SSH-TF using AST2400.
The SSDT contains no errors and all devices are present.

Possible TODOs:
* Add "enter config" and "exit config" bytes
* Generate support methods to enter and exit config mode
* Generate support methods to query, change or disable current
  resource settings on specific LDNs

Change-Id: I2716ae0580d68e5d4fcc484cb1648a2cdc1f4ca0
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33033
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2019-09-06 15:31:06 +00:00