From 0d640ba9337ac86ac9a04126877b7a529f744bdb Mon Sep 17 00:00:00 2001
From: BlackMark <me@blackmark.me>
Date: Sat, 28 May 2022 17:05:02 +0200
Subject: [PATCH] Add support for three wire spi

---
 .gitmodules   | 3 +++
 eink/eink     | 2 +-
 eink/main.cpp | 7 +++++--
 eink/spi      | 2 +-
 4 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/.gitmodules b/.gitmodules
index bfa66fd..0078131 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
+[submodule "eink/eink"]
+	path = eink/eink
+	url = git@git.blackmark.me:avr/eink.git
 [submodule "eink/uart"]
 	path = eink/uart
 	url = git@git.blackmark.me:avr/uart.git
diff --git a/eink/eink b/eink/eink
index 9a4193e..2e417a0 160000
--- a/eink/eink
+++ b/eink/eink
@@ -1 +1 @@
-Subproject commit 9a4193ee75ca2e25ff8dc1de5fa1e14802725e04
+Subproject commit 2e417a0f3aa9e187d80f008054b9323fc05afced
diff --git a/eink/main.cpp b/eink/main.cpp
index 759087c..90610b1 100644
--- a/eink/main.cpp
+++ b/eink/main.cpp
@@ -441,7 +441,8 @@ constexpr auto IMAGE [[gnu::progmem]] = util::to_array<uint8_t>({
 
 int main()
 {
-	using spi_t = spi::Software<spi::SoftwareConfig<io::P::C4, io::P::NONE, io::P::C5, io::P::C3>>;
+	using spi_t = spi::Software<spi::SoftwareConfig<io::P::C4, io::P::NONE, io::P::C5, io::P::C3, 100'000,
+	                                                spi::Mode::MODE_0, spi::BitOrder::MSB_FIRST, 9>>;
 
 	uart_t serial;
 	serial.init();
@@ -450,7 +451,9 @@ int main()
 
 	serial << F("e-Paper demo") << F("\r\n");
 
-	auto einkDisplay = eink::Eink<200, 200, spi_t, io::P::C1, io::P::C2, io::P::C0>{};
+	io::Pin<io::P::C2>::dir(io::Dir::OUT);
+	io::Pin<io::P::C2>::write(false);
+	auto einkDisplay = eink::Eink<200, 200, spi_t, io::P::C1, io::P::NONE /*io::P::C2*/, io::P::C0>{};
 	einkDisplay.init();
 
 	serial << F("e-Paper init") << F("\r\n");
diff --git a/eink/spi b/eink/spi
index 999cd0e..852ad5a 160000
--- a/eink/spi
+++ b/eink/spi
@@ -1 +1 @@
-Subproject commit 999cd0e0c973834e641f7bbeb0c339d696b45415
+Subproject commit 852ad5a3184ef6828e99b439fc078dd7ca83b5df