From 168e1b1d62f3e23b056efe88256c1209ee592729 Mon Sep 17 00:00:00 2001
From: Alok Chauhan <quic_alokc@quicinc.com>
Date: Tue, 20 Feb 2024 19:56:33 +0530
Subject: [PATCH] msm: camera: common: Added support for multiple project
 configuration

multiple targets can have same kernel config which can break
existing camera bezel compilation. Added support for multiple
project compilation for camera.

CRs-Fixed: 3740838
Change-Id: I6d0a6ccdbf0bdd4b090e45a0464d96c06b7bc4af
Signed-off-by: Alok Chauhan <quic_alokc@quicinc.com>
---
 Android.mk         |  5 +++++
 camera_modules.bzl | 49 ++++++++++++++++++++++++++++++++++------------
 2 files changed, 41 insertions(+), 13 deletions(-)

diff --git a/Android.mk b/Android.mk
index 5fb48ba488..45e1ca0efe 100644
--- a/Android.mk
+++ b/Android.mk
@@ -15,6 +15,11 @@ DLKM_DIR := $(TOP)/device/qcom/common/dlkm
 
 LOCAL_MODULE_DDK_BUILD := true
 
+LOCAL_MODULE_DDK_SUBTARGET_REGEX := "camera.*"
+ifeq ($(TARGET_BOARD_PLATFORM), volcano)
+  LOCAL_MODULE_DDK_SUBTARGET_REGEX := "$(TARGET_BOARD_PLATFORM)_camera.*"
+endif
+
 # List of board platforms for which MMRM driver API should be enabled
 MMRM_BOARDS := taro parrot kalama pineapple crow volcono
 
diff --git a/camera_modules.bzl b/camera_modules.bzl
index c1f0c1b797..430be6da8d 100644
--- a/camera_modules.bzl
+++ b/camera_modules.bzl
@@ -1,26 +1,38 @@
 load("//build/kernel/kleaf:kernel.bzl", "ddk_module")
 load("//build/bazel_common_rules/dist:dist.bzl", "copy_to_dist_dir")
 load("//msm-kernel:target_variants.bzl", "get_all_variants")
+load("//msm-kernel:target_variants.bzl", "get_all_lunch_target_base_target_variants")
+
+def _define_module(target, variant, lunch_target=None):
+    if lunch_target:
+        tv = "{}_{}".format(target, variant)
+        tvl = "{}_{}_{}".format(target, variant, lunch_target)
+        ddk_mod_name = "{}_camera".format(tvl)
+        defconfig = "{}_defconfig".format(lunch_target)
+    else:
+        tv = "{}_{}".format(target, variant)
+        ddk_mod_name = "{}_camera".format(tv)
+        defconfig = "{}_defconfig".format(target)
 
-def _define_module(target, variant):
-    tv = "{}_{}".format(target, variant)
     deps = [
         ":camera_headers",
         ":camera_banner",
         "//msm-kernel:all_headers",
+        "//vendor/qcom/opensource/securemsm-kernel:smcinvoke_kernel_headers",
+        "//vendor/qcom/opensource/securemsm-kernel:smmu_proxy_headers",
+        "//vendor/qcom/opensource/securemsm-kernel:{}_smcinvoke_dlkm".format(tv),
+        "//vendor/qcom/opensource/securemsm-kernel:{}_smmu_proxy_dlkm".format(tv),
+        "//vendor/qcom/opensource/mmrm-driver:{}_mmrm_driver".format(tv),
     ]
+
     if target == "pineapple":
         deps.extend([
             "//vendor/qcom/opensource/synx-kernel:synx_headers",
             "//vendor/qcom/opensource/synx-kernel:{}_modules".format(tv),
-            "//vendor/qcom/opensource/securemsm-kernel:smcinvoke_kernel_headers",
-            "//vendor/qcom/opensource/securemsm-kernel:smmu_proxy_headers",
-            "//vendor/qcom/opensource/securemsm-kernel:{}_smcinvoke_dlkm".format(tv),
-            "//vendor/qcom/opensource/securemsm-kernel:{}_smmu_proxy_dlkm".format(tv),
-            "//vendor/qcom/opensource/mmrm-driver:{}_mmrm_driver".format(tv),
         ])
+
     ddk_module(
-        name = "{}_camera".format(tv),
+        name = ddk_mod_name,
         out = "camera.ko",
         srcs = [
             "drivers/cam_req_mgr/cam_req_mgr_core.c",
@@ -247,16 +259,25 @@ def _define_module(target, variant):
                 ],
             },
         },
-        copts = ["-include", "$(location :camera_banner)"],
+
+        copts = ["-Wno-implicit-fallthrough", "-include", "$(location :camera_banner)"],
+
         deps = deps,
         kconfig = "Kconfig",
-        defconfig = "{}_defconfig".format(target),
+        defconfig = defconfig,
         kernel_build = "//msm-kernel:{}".format(tv),
     )
 
+    if lunch_target:
+        dist_target_name = "{}_camera_dist".format(tvl)
+        data = [":{}_camera".format(tvl)]
+    else:
+        dist_target_name = "{}_camera_dist".format(tv)
+        data = [":{}_camera".format(tv)]
+
     copy_to_dist_dir(
-	name = "{}_camera_dist".format(tv),
-        data = [":{}_camera".format(tv)],
+	name = dist_target_name,
+        data = data,
         dist_dir = "out/target/product/{}/dlkm/lib/modules/".format(target),
         flat = True,
         wipe_dist_dir = False,
@@ -266,4 +287,6 @@ def _define_module(target, variant):
 
 def define_camera_module():
     for (t, v) in get_all_variants():
-           _define_module(t, v)
+        _define_module(t, v)
+    for (lt, bt, v) in get_all_lunch_target_base_target_variants():
+        _define_module(bt, v, lt)