Merge "techpack: Install headers for display techpack"

Android.bp

@@ -0,0 +1,36 @@
+headers_src = [
+    "include/uapi/*/**/*.h",
+]
+
+display_headers_out = [
+    "display/drm/msm_drm_pp.h",
+    "display/drm/sde_drm.h",
+    "display/hdcp/msm_hdmi_hdcp_mgr.h",
+    "display/media/mmm_color_fmt.h",
+    "display/media/msm_sde_rotator.h",
+]
+
+display_kernel_headers_verbose = "--verbose "
+genrule {
+    name: "qti_generate_display_kernel_headers",
+    tools: ["headers_install.sh"],
+    tool_files: [
+        "display_kernel_headers.py",
+    ],
+    srcs: headers_src,
+    cmd: "python3 $(location display_kernel_headers.py) " +
+          display_kernel_headers_verbose +
+         "--header_arch arm64 " +
+         "--gen_dir $(genDir) " +
+         "--display_include_uapi $(locations include/uapi/*/**/*.h) " +
+         "--headers_install $(location headers_install.sh)",
+    out: display_headers_out,
+}
+
+cc_library_headers {
+    name: "qti_display_kernel_headers",
+    generated_headers: ["qti_generate_display_kernel_headers"],
+    export_generated_headers: ["qti_generate_display_kernel_headers"],
+    vendor: true,
+    recovery_available: true
+}

display_kernel_headers.py

@@ -0,0 +1,86 @@
+ # Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
+ #
+ # This program is free software; you can redistribute it and/or modify it
+ # under the terms of the GNU General Public License version 2 as published by
+ # the Free Software Foundation.
+ #
+ # This program is distributed in the hope that it will be useful, but WITHOUT
+ # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ # more details.
+ #
+ # You should have received a copy of the GNU General Public License along with
+ # this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import argparse
+import filecmp
+import os
+import re
+import subprocess
+import sys
+
+def run_headers_install(verbose, gen_dir, headers_install, prefix, h):
+    if not h.startswith(prefix):
+        print('error: expected prefix [%s] on header [%s]' % (prefix, h))
+        return False
+
+    out_h = os.path.join(gen_dir, h[len(prefix):])
+    (out_h_dirname, out_h_basename) = os.path.split(out_h)
+    cmd = ["bash", headers_install, h, out_h]
+
+    if verbose:
+        print('run_headers_install: cmd is %s' % cmd)
+
+    result = subprocess.call(cmd)
+
+    if result != 0:
+        print('error: run_headers_install: cmd %s failed %d' % (cmd, result))
+        return False
+    return True
+
+def gen_display_headers(verbose, gen_dir, headers_install, display_include_uapi):
+    error_count = 0
+    for h in display_include_uapi:
+        display_uapi_include_prefix = os.path.join(h.split('/include/uapi')[0], 'include', 'uapi') + os.sep
+        if not run_headers_install(
+                verbose, gen_dir, headers_install,
+                display_uapi_include_prefix, h): error_count += 1
+    return error_count
+
+def main():
+    """Parse command line arguments and perform top level control."""
+    parser = argparse.ArgumentParser(
+            description=__doc__,
+            formatter_class=argparse.RawDescriptionHelpFormatter)
+
+    # Arguments that apply to every invocation of this script.
+    parser.add_argument(
+            '--verbose', action='store_true',
+            help='Print output that describes the workings of this script.')
+    parser.add_argument(
+            '--header_arch', required=True,
+            help='The arch for which to generate headers.')
+    parser.add_argument(
+            '--gen_dir', required=True,
+            help='Where to place the generated files.')
+    parser.add_argument(
+            '--display_include_uapi', required=True, nargs='*',
+            help='The list of techpack/*/include/uapi header files.')
+    parser.add_argument(
+            '--headers_install', required=True,
+            help='The headers_install tool to process input headers.')
+
+    args = parser.parse_args()
+
+    if args.verbose:
+        print('header_arch [%s]' % args.header_arch)
+        print('gen_dir [%s]' % args.gen_dir)
+        print('display_include_uapi [%s]' % args.display_include_uapi)
+        print('headers_install [%s]' % args.headers_install)
+
+    return gen_display_headers(args.verbose, args.gen_dir,
+            args.headers_install, args.display_include_uapi)
+
+if __name__ == '__main__':
+    sys.exit(main())
+