From 7c03983529f6502206cd40692c794b7c6605d9bf Mon Sep 17 00:00:00 2001
From: "Luke T. Shumaker" <lukeshu@lukeshu.com>
Date: Fri, 25 Oct 2024 21:55:07 -0600
Subject: Enable pico-sdk for host binaries

---
 CMakeLists.txt                 | 15 ++++++++++-----
 Makefile                       | 14 ++++++++------
 cmd/sbc_harness/CMakeLists.txt |  6 ++++--
 cmd/sbc_harness/hw/w5500.c     |  2 ++
 cmd/srv9p/CMakeLists.txt       |  4 ++++
 5 files changed, 28 insertions(+), 13 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e55ec51..9b5c0e0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,17 +1,21 @@
-# CMakeLists.txt - Main per-output build script for sbc-harness project
+# CMakeLists.txt - Main per-platform build script for sbc-harness project
 #
 # Copyright (C) 2024  Luke T. Shumaker <lukeshu@lukeshu.com>
 # SPDX-Licence-Identifier: AGPL-3.0-or-later
 
 cmake_minimum_required(VERSION 3.30)
 
-if (_UBUILD_USE_PICO_SDK)
-	set(PICO_SDK_PATH "${CMAKE_SOURCE_DIR}/3rd-party/pico-sdk")
-	include(pico_sdk_import.cmake)
+if (NOT PICO_PLATFORM)
+        message(FATAL_ERROR "PICO_PLATFORM must be specified")
 endif()
 
+set(PICO_SDK_PATH "${CMAKE_SOURCE_DIR}/3rd-party/pico-sdk")
+include(pico_sdk_import.cmake)
+
 project(sbc_harness)
 
+pico_sdk_init()
+
 add_compile_options(-Wall -Wextra -Werror)
 
 add_subdirectory(libcr)
@@ -21,4 +25,5 @@ add_subdirectory(libusb)
 add_subdirectory(libmisc)
 add_subdirectory(lib9p)
 
-add_subdirectory(cmd/${_UBUILD_CMD})
+add_subdirectory(cmd/sbc_harness)
+add_subdirectory(cmd/srv9p)
diff --git a/Makefile b/Makefile
index d0c5c78..417bd0c 100644
--- a/Makefile
+++ b/Makefile
@@ -33,15 +33,17 @@ libusb/include/libusb/tusb_helpers.h 3rd-party/MS-LCID.pdf 3rd-party/MS-LCID.txt
 
 ################################################################################
 
-commands := $(patsubst cmd/%/CMakeLists.txt,%,$(wildcard cmd/*/CMakeLists.txt))
-build: $(foreach c,$(commands),cmd/$c/build)
+platforms := $(shell sed -nE 's/if *\(PICO_PLATFORM STREQUAL "(.*)"\)/\1/p' cmd/*/CMakeLists.txt)
+
+build: $(foreach p,$(platforms),build/$p/build)
 .PHONY: build
 
-cmd/%/build: build/%/Makefile $(generate/files)
+$(foreach p,$(platforms),build/$p/Makefile): build/%/Makefile:
+	mkdir -p $(@D) && cd $(@D) && cmake -DCMAKE_BUILD_TYPE=Debug -DPICO_PLATFORM=$* ../..
+
+$(foreach p,$(platforms),build/$p/build): build/%/build: build/%/Makefile
 	$(MAKE) -C $(<D)
-.PHONY: cmd/%/build
-build/%/Makefile: cmd/%/CMakeLists.txt
-	mkdir -p $(@D) && cd $(@D) && cmake -DCMAKE_BUILD_TYPE=Debug -D_UBUILD_CMD=$* $(shell if grep -q pico_sdk_init $<; then echo ' -D_UBUILD_USE_PICO_SDK=1 '; fi) ../..
+.PHONY: $(foreach p,$(platforms),build/$p/build)
 
 generate: $(generate/files)
 .PHONY: generate
diff --git a/cmd/sbc_harness/CMakeLists.txt b/cmd/sbc_harness/CMakeLists.txt
index 54553f0..d6261cb 100644
--- a/cmd/sbc_harness/CMakeLists.txt
+++ b/cmd/sbc_harness/CMakeLists.txt
@@ -3,7 +3,7 @@
 # Copyright (C) 2024  Luke T. Shumaker <lukeshu@lukeshu.com>
 # SPDX-Licence-Identifier: AGPL-3.0-or-later
 
-pico_sdk_init()
+if (PICO_PLATFORM STREQUAL "rp2040")
 
 add_executable(sbc_harness
 	main.c
@@ -21,7 +21,7 @@ target_link_libraries(sbc_harness
 
 	libmisc
 	libusb
-	libdhcp
+	#libdhcp
 )
 
 pico_enable_stdio_usb(sbc_harness 0)
@@ -31,3 +31,5 @@ pico_enable_stdio_rtt(sbc_harness 0)
 
 pico_add_extra_outputs(sbc_harness) # create .map/.bin/.hex/.uf2 files in addition to .elf
 pico_set_program_url(sbc_harness "https://git.lukeshu.com/sbc-harness")
+
+endif()
diff --git a/cmd/sbc_harness/hw/w5500.c b/cmd/sbc_harness/hw/w5500.c
index 3bcc0a4..6b90b99 100644
--- a/cmd/sbc_harness/hw/w5500.c
+++ b/cmd/sbc_harness/hw/w5500.c
@@ -296,6 +296,7 @@ implements_net_stream_listener *w5500_tcp_listen(struct w5500 *chip, uint8_t soc
 	return &chip->listeners[socknum];
 }
 
+/*
 implements_net_packet_conn *w5500_udp_conn(struct w5500 *chip, uint8_t socknum,
                                            uint16_t port) {
 	assert(chip);
@@ -307,6 +308,7 @@ implements_net_packet_conn *w5500_udp_conn(struct w5500 *chip, uint8_t socknum,
 
 	return &chip->listeners[socknum];
 }
+*/
 
 /* tcp_listener methods *******************************************************/
 
diff --git a/cmd/srv9p/CMakeLists.txt b/cmd/srv9p/CMakeLists.txt
index 52e5171..ccad845 100644
--- a/cmd/srv9p/CMakeLists.txt
+++ b/cmd/srv9p/CMakeLists.txt
@@ -3,6 +3,8 @@
 # Copyright (C) 2024  Luke T. Shumaker <lukeshu@lukeshu.com>
 # SPDX-Licence-Identifier: AGPL-3.0-or-later
 
+if (PICO_PLATFORM STREQUAL "host")
+
 set(static_srcs
 	static/README.md
 	static/Documentation/x
@@ -50,3 +52,5 @@ add_custom_command(
 )
 
 target_sources(srv9p PRIVATE ${static_objs} static.h)
+
+endif()
-- 
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