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Currently, drivers/intel/wifi is a PCI driver (provides `struct
pci_driver`) as well as a chip driver (provides `struct
chip_operations`). However, there is no need for a separate chip
driver for the WiFi device since drivers/wifi/generic already provides
one.
Having two separate chip drivers makes it difficult to multi-source
WiFi devices and share the same firmware target without having to add
a probe property for each of these devices. This is unnecessary since
the WiFi driver in coreboot is primarily responsible for:
1. PCI resource allocation
2. ACPI SSDT node generation to expose wake property and SAR tables
3. SMBIOS table generation
For the most part, coreboot can perform the above operations without
really caring about the specifics of which WiFi device is being used
by the mainboard. Thus, this change drops the driver for intel/wifi
and moves the PCI driver support required for Intel WiFi chips into
drivers/wifi/generic. The PCI driver is retained for backward
compatibility with boards that never utilized the chip driver to
support Intel WiFi device. For these devices, the PCI driver helps
perform the same operations as above (except exposing the wake
property) by utilizing the same `wifi_generic_ops`.
This change also moves DRIVERS_INTEL_WIFI config to
wifi/generic/Kconfig.
BUG=b:169802515
BRANCH=zork
Change-Id: I780a7d1a87f387d5e01e6b35aac7cca31a2033ac
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46036
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change drops the dependency of DRIVERS_WIFI_GENERIC on
HAVE_ACPI_TABLES as the driver provides operations other than the ACPI
support for WiFi devices. Since the dependency is now dropped, ACPI
operations in generic.c are guarded by CONFIG(HAVE_ACPI_TABLES).
BUG=b:169802515
BRANCH=zork
Change-Id: I16444a9d842a6742e3c97ef04c4f18e93e6cdaa9
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46037
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Re-organize the existing generic wifi driver into a generic wifi chip
driver. This allows generic wifi chip information to be added to the
devicetree.
BUG=None
TEST=./util/abuild/abuild
Change-Id: I63f957a008ecf4a6a810c2a135ed62ea81a79fe0
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43768
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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