misc: Implement goldfish pipe driver

this pipe is widely used in Android emulator and specified here: https://android.googlesource.com/platform/external/qemu/+/master/docs/ANDROID-QEMU-PIPE.TXT Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
xiaoxiang781216 · Jun 13, 2024 · f1893e7 · f1893e7
1 parent 73b15a8
commit f1893e7
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diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
@@ -81,6 +81,10 @@ config BLK_RPMSG_SERVER
 	default n
 	depends on RPMSG
 
+config GOLDFISH_PIPE
+	bool "Goldfish Pipe Support"
+	default n
+
 # ARCH needs to support memory access while CPU is running to be able to use
 # the LWL CONSOLE
 

diff --git a/drivers/misc/Make.defs b/drivers/misc/Make.defs
@@ -72,6 +72,10 @@ ifneq ($(CONFIG_DEV_OPTEE_NONE),y)
   CSRCS += optee.c
 endif
 
+ifeq ($(CONFIG_GOLDFISH_PIPE),y)
+  CSRCS += goldfish_pipe.c
+endif
+
 # Include build support
 
 DEPPATH += --dep-path misc