libpayload-x86: Add common i8042 driver

Add a common i8042 driver that uses multiple overflowing fifos to seperate PS/2 port and PS/2 aux port. Required to support PC keyboard and PC mouse at the same time. Tested on Lenovo T500. Change-Id: I4ca803bfa3ed45111776eef1f4dccd3fab02ea39 Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/18594 Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
coreboot · May 15, 2018 · e6a3821 · e6a3821
1 parent 2b2f895
commit e6a3821
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diff --git a/payloads/libpayload/Kconfig b/payloads/libpayload/Kconfig
@@ -329,6 +329,12 @@ config FONT_SCALE_FACTOR
 	  By default (value of 0), the scale factor is automatically
 	  calculated to ensure at least 130 columns (when possible).
 
+config PC_I8042
+	bool "A common PC i8042 driver"
+	default n
+	help
+	  To be used by PC_KEYBOARD and PC_MOUSE.
+
 config PC_KEYBOARD
 	bool "Allow input from a PC keyboard"
 	default y if ARCH_X86 # uses IO

diff --git a/payloads/libpayload/drivers/Makefile.inc b/payloads/libpayload/drivers/Makefile.inc
@@ -38,6 +38,7 @@ libc-$(CONFIG_LP_S5P_SERIAL_CONSOLE) += serial/s5p.c serial/serial.c
 libc-$(CONFIG_LP_IPQ806X_SERIAL_CONSOLE) += serial/ipq806x.c serial/serial.c
 libc-$(CONFIG_LP_IPQ40XX_SERIAL_CONSOLE) += serial/ipq40xx.c serial/serial.c
 libc-$(CONFIG_LP_BG4CD_SERIAL_CONSOLE) += serial/bg4cd.c serial/serial.c
+libc-$(CONFIG_LP_PC_I8042) += i8042/i8042.c
 libc-$(CONFIG_LP_PC_KEYBOARD) += keyboard.c
 
 libc-$(CONFIG_LP_CBMEM_CONSOLE) += cbmem_console.c