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arch/x86/acpi: Add code to generate ACPI for PS2 keyboards

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Add new file to generate ACPI _DSD code for PS2 keyboards. The
following 2 device properties are generated as needed:

function-row-phymap: A list of ordered scancodes for function row.

linux,keymap: Symantically, this is an array of "scancode,keycode"
tuple entries. Each entry teaches linux the keycode corresponding
to a scancode.

Signed-off-by: Rajat Jain <rajatja@google.com>
Change-Id: I5ee05173106a125793e91c263610731543c85472
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40031
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Rajat Jain
2020-04-01 17:01:13 -07:00
committed by Furquan Shaikh
parent e6b0a32cb3
commit a28e3fb694
3 changed files with 339 additions and 0 deletions
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src/arch/x86/Makefile.inc
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@@ -235,6 +235,7 @@ ramstage-$(CONFIG_HAVE_ACPI_TABLES) += acpigen.c
ramstage-$(CONFIG_HAVE_ACPI_TABLES) += acpigen_dsm.c
ramstage-$(CONFIG_HAVE_ACPI_TABLES) += acpi_device.c
ramstage-$(CONFIG_HAVE_ACPI_TABLES) += acpi_pld.c
ramstage-$(CONFIG_HAVE_ACPI_TABLES) += acpigen_ps2_keybd.c
ramstage-$(CONFIG_HAVE_ACPI_RESUME) += acpi_s3.c
ramstage-$(CONFIG_ACPI_BERT) += acpi_bert_storage.c
ramstage-y += c_start.S