From cd7f2e511d4181b5803533a238aa06a05209cba8 Mon Sep 17 00:00:00 2001
From: Peder Bergebakken Sundt <pbsds@hotmail.com>
Date: Thu, 6 Aug 2020 20:52:49 +0200
Subject: [PATCH] Initial commit

---
 .gitignore         |   5 +
 fpga/__init__.py   |  17 ++
 fpga/ice40.py      |  31 +++
 poetry.lock        | 495 +++++++++++++++++++++++++++++++++++++++++++++
 poetry.toml        |   2 +
 pyproject.toml     |  19 ++
 tests/__init__.py  |   0
 tests/test_fpga.py |   5 +
 8 files changed, 574 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 fpga/__init__.py
 create mode 100644 fpga/ice40.py
 create mode 100644 poetry.lock
 create mode 100644 poetry.toml
 create mode 100644 pyproject.toml
 create mode 100644 tests/__init__.py
 create mode 100644 tests/test_fpga.py

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..143bb20
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+.venv/
+*.egg-infp
+*.pyc
+__pycache__
+build/
diff --git a/fpga/__init__.py b/fpga/__init__.py
new file mode 100644
index 0000000..40a8fed
--- /dev/null
+++ b/fpga/__init__.py
@@ -0,0 +1,17 @@
+__version__ = '0.1.0'
+
+def load_env():
+    import os, shutil
+
+
+    if shutil.which("yowasp-yosys"):
+        os.environ["NEXTPNR_ICE40"] = "yowasp-nextpnr-ice40"
+
+    if shutil.which("yowasp-nextpnr-ice40"):
+        os.environ["NEXTPNR_ICE40"] = "yowasp-nextpnr-ice40"
+
+    if shutil.which("yowasp-nextpnr-ecp5"):
+        os.environ["NEXTPNR_ECP5"]  = "yowasp-nextpnr-ecp5"
+
+load_env()
+del load_env
diff --git a/fpga/ice40.py b/fpga/ice40.py
new file mode 100644
index 0000000..2d17d7c
--- /dev/null
+++ b/fpga/ice40.py
@@ -0,0 +1,31 @@
+from nmigen import *
+from nmigen.cli import main
+from nmigen_boards.icebreaker import ICEBreakerPlatform
+
+class Blinker(Elaboratable):
+    def __init__(self, maxperiod: int):
+        self.maxperiod = maxperiod
+
+    def elaborate(self, platform):
+        led = platform.request("led_r")
+
+        m = Module()
+
+        counter = Signal(range(self.maxperiod + 1))
+
+        with m.If(counter == 0):
+            m.d.sync += [
+                led.eq(~led),
+                counter.eq(self.maxperiod)
+            ]
+        with m.Else():
+            m.d.sync += counter.eq(counter - 1)
+
+        return m
+
+
+if __name__ == "__main__":
+    plat = ICEBreakerPlatform()
+    #main(plat, ports=[plat.led])
+    plat.build(Blinker(10000000), do_program=True)
+
diff --git a/poetry.lock b/poetry.lock
new file mode 100644
index 0000000..4c64e8d
--- /dev/null
+++ b/poetry.lock
@@ -0,0 +1,495 @@
+[[package]]
+category = "dev"
+description = "Atomic file writes."
+marker = "sys_platform == \"win32\""
+name = "atomicwrites"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "1.4.0"
+
+[[package]]
+category = "dev"
+description = "Classes Without Boilerplate"
+name = "attrs"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "19.3.0"
+
+[package.extras]
+azure-pipelines = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "pytest-azurepipelines"]
+dev = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "sphinx", "pre-commit"]
+docs = ["sphinx", "zope.interface"]
+tests = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface"]
+
+[[package]]
+category = "dev"
+description = "Cross-platform colored terminal text."
+marker = "sys_platform == \"win32\""
+name = "colorama"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+version = "0.4.3"
+
+[[package]]
+category = "main"
+description = ""
+name = "dg"
+optional = false
+python-versions = "*"
+version = "1.1.0+git"
+
+[package.source]
+reference = "c5edc568997a3aefd910d4ca32b05623223f83c8"
+type = "git"
+url = "https://github.com/pbsds/dg"
+
+[[package]]
+category = "dev"
+description = "Read metadata from Python packages"
+marker = "python_version < \"3.8\""
+name = "importlib-metadata"
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
+version = "1.7.0"
+
+[package.dependencies]
+zipp = ">=0.5"
+
+[package.extras]
+docs = ["sphinx", "rst.linker"]
+testing = ["packaging", "pep517", "importlib-resources (>=1.3)"]
+
+[[package]]
+category = "main"
+description = "Read resources from Python packages"
+marker = "python_version < \"3.9\""
+name = "importlib-resources"
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
+version = "3.0.0"
+
+[package.dependencies]
+[package.dependencies.zipp]
+python = "<3.8"
+version = ">=0.4"
+
+[package.extras]
+docs = ["sphinx", "rst.linker", "jaraco.packaging"]
+
+[[package]]
+category = "main"
+description = "A very fast and expressive template engine."
+name = "jinja2"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+version = "2.11.2"
+
+[package.dependencies]
+MarkupSafe = ">=0.23"
+
+[package.extras]
+i18n = ["Babel (>=0.8)"]
+
+[[package]]
+category = "main"
+description = "Safely add untrusted strings to HTML/XML markup."
+name = "markupsafe"
+optional = false
+python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*"
+version = "1.1.1"
+
+[[package]]
+category = "dev"
+description = "More routines for operating on iterables, beyond itertools"
+name = "more-itertools"
+optional = false
+python-versions = ">=3.5"
+version = "8.4.0"
+
+[[package]]
+category = "main"
+description = "Python toolbox for building complex digital hardware"
+name = "nmigen"
+optional = false
+python-versions = "~=3.6"
+version = "0.2"
+
+[package.dependencies]
+Jinja2 = "*"
+pyvcd = ">=0.1.4,<0.2.0"
+setuptools = "*"
+
+[[package]]
+category = "main"
+description = "Board and connector definitions for nMigen"
+name = "nmigen-boards"
+optional = false
+python-versions = "*"
+version = "0.0"
+
+[package.dependencies]
+nmigen = "*"
+setuptools = "*"
+
+[[package]]
+category = "main"
+description = ""
+name = "nmigen-dg"
+optional = false
+python-versions = "^3.7"
+version = "0.1.0"
+
+[package.dependencies]
+dg = "rev poetry"
+nmigen = "^0.2"
+
+[package.source]
+reference = "a9de8193144f3509ec762c6ce05764b6bd00a81c"
+type = "git"
+url = "https://github.com/pbsds/nmigen_dg"
+
+[[package]]
+category = "dev"
+description = "Core utilities for Python packages"
+name = "packaging"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "20.4"
+
+[package.dependencies]
+pyparsing = ">=2.0.2"
+six = "*"
+
+[[package]]
+category = "dev"
+description = "plugin and hook calling mechanisms for python"
+name = "pluggy"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "0.13.1"
+
+[package.dependencies]
+[package.dependencies.importlib-metadata]
+python = "<3.8"
+version = ">=0.12"
+
+[package.extras]
+dev = ["pre-commit", "tox"]
+
+[[package]]
+category = "dev"
+description = "library with cross-python path, ini-parsing, io, code, log facilities"
+name = "py"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "1.9.0"
+
+[[package]]
+category = "dev"
+description = "Python parsing module"
+name = "pyparsing"
+optional = false
+python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
+version = "2.4.7"
+
+[[package]]
+category = "dev"
+description = "pytest: simple powerful testing with Python"
+name = "pytest"
+optional = false
+python-versions = ">=3.5"
+version = "5.4.3"
+
+[package.dependencies]
+atomicwrites = ">=1.0"
+attrs = ">=17.4.0"
+colorama = "*"
+more-itertools = ">=4.0.0"
+packaging = "*"
+pluggy = ">=0.12,<1.0"
+py = ">=1.5.0"
+wcwidth = "*"
+
+[package.dependencies.importlib-metadata]
+python = "<3.8"
+version = ">=0.12"
+
+[package.extras]
+checkqa-mypy = ["mypy (v0.761)"]
+testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xmlschema"]
+
+[[package]]
+category = "main"
+description = "Python VCD file support."
+name = "pyvcd"
+optional = false
+python-versions = "*"
+version = "0.1.7"
+
+[package.dependencies]
+six = "*"
+
+[[package]]
+category = "main"
+description = "Python 2 and 3 compatibility utilities"
+name = "six"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
+version = "1.15.0"
+
+[[package]]
+category = "main"
+description = "A WebAssembly runtime powered by Wasmtime"
+name = "wasmtime"
+optional = false
+python-versions = ">=3.6"
+version = "0.19.0"
+
+[package.extras]
+testing = ["coverage", "pytest", "pycparser", "pytest-flake8", "pytest-mypy"]
+
+[[package]]
+category = "dev"
+description = "Measures the displayed width of unicode strings in a terminal"
+name = "wcwidth"
+optional = false
+python-versions = "*"
+version = "0.2.5"
+
+[[package]]
+category = "main"
+description = "nextpnr-ice40 FPGA place and route tool"
+name = "yowasp-nextpnr-ice40"
+optional = false
+python-versions = "~=3.5"
+version = "0.0.post2658.dev17"
+
+[package.dependencies]
+wasmtime = ">=0.19.0,<0.20.0"
+
+[package.dependencies.importlib-resources]
+python = "<3.9"
+version = "*"
+
+[[package]]
+category = "main"
+description = "nextpnr-ice40 FPGA place and route tool"
+name = "yowasp-nextpnr-ice40-1k"
+optional = false
+python-versions = "~=3.5"
+version = "0.0.post2658.dev17"
+
+[package.dependencies]
+yowasp-nextpnr-ice40 = "0.0.post2658.dev17"
+
+[[package]]
+category = "main"
+description = "nextpnr-ice40 FPGA place and route tool"
+name = "yowasp-nextpnr-ice40-384"
+optional = false
+python-versions = "~=3.5"
+version = "0.0.post2658.dev17"
+
+[package.dependencies]
+yowasp-nextpnr-ice40 = "0.0.post2658.dev17"
+
+[[package]]
+category = "main"
+description = "nextpnr-ice40 FPGA place and route tool"
+name = "yowasp-nextpnr-ice40-5k"
+optional = false
+python-versions = "~=3.5"
+version = "0.0.post2658.dev17"
+
+[package.dependencies]
+yowasp-nextpnr-ice40 = "0.0.post2658.dev17"
+
+[[package]]
+category = "main"
+description = "nextpnr-ice40 FPGA place and route tool"
+name = "yowasp-nextpnr-ice40-8k"
+optional = false
+python-versions = "~=3.5"
+version = "0.0.post2658.dev17"
+
+[package.dependencies]
+yowasp-nextpnr-ice40 = "0.0.post2658.dev17"
+
+[[package]]
+category = "main"
+description = "nextpnr-ice40 FPGA place and route tool"
+name = "yowasp-nextpnr-ice40-all"
+optional = false
+python-versions = "~=3.5"
+version = "0.0.post2658.dev17"
+
+[package.dependencies]
+yowasp-nextpnr-ice40-1k = "0.0.post2658.dev17"
+yowasp-nextpnr-ice40-384 = "0.0.post2658.dev17"
+yowasp-nextpnr-ice40-5k = "0.0.post2658.dev17"
+yowasp-nextpnr-ice40-8k = "0.0.post2658.dev17"
+yowasp-nextpnr-ice40-u4k = "0.0.post2658.dev17"
+
+[[package]]
+category = "main"
+description = "nextpnr-ice40 FPGA place and route tool"
+name = "yowasp-nextpnr-ice40-u4k"
+optional = false
+python-versions = "~=3.5"
+version = "0.0.post2658.dev17"
+
+[package.dependencies]
+yowasp-nextpnr-ice40 = "0.0.post2658.dev17"
+
+[[package]]
+category = "main"
+description = "Backport of pathlib-compatible object wrapper for zip files"
+marker = "python_version < \"3.8\""
+name = "zipp"
+optional = false
+python-versions = ">=3.6"
+version = "3.1.0"
+
+[package.extras]
+docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
+testing = ["jaraco.itertools", "func-timeout"]
+
+[metadata]
+content-hash = "8950bf75fe482f7ec6ea58cc84550c143b29885d62624f6224a4bcbd1fce3cf2"
+python-versions = "^3.7"
+
+[metadata.files]
+atomicwrites = [
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+]
+colorama = [
+    {file = "colorama-0.4.3-py2.py3-none-any.whl", hash = "sha256:7d73d2a99753107a36ac6b455ee49046802e59d9d076ef8e47b61499fa29afff"},
+    {file = "colorama-0.4.3.tar.gz", hash = "sha256:e96da0d330793e2cb9485e9ddfd918d456036c7149416295932478192f4436a1"},
+]
+dg = []
+importlib-metadata = [
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+]
+jinja2 = [
+    {file = "Jinja2-2.11.2-py2.py3-none-any.whl", hash = "sha256:f0a4641d3cf955324a89c04f3d94663aa4d638abe8f733ecd3582848e1c37035"},
+    {file = "Jinja2-2.11.2.tar.gz", hash = "sha256:89aab215427ef59c34ad58735269eb58b1a5808103067f7bb9d5836c651b3bb0"},
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diff --git a/poetry.toml b/poetry.toml
new file mode 100644
index 0000000..ab1033b
--- /dev/null
+++ b/poetry.toml
@@ -0,0 +1,2 @@
+[virtualenvs]
+in-project = true
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..59bb66d
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,19 @@
+[tool.poetry]
+name = "fpga"
+version = "0.1.0"
+description = ""
+authors = ["Peder Bergebakken Sundt <pbsds@hotmail.com>"]
+
+[tool.poetry.dependencies]
+python = "^3.7"
+yowasp-nextpnr-ice40-all = "^0.0.post2658.dev17"
+nmigen-dg = {git = "https://github.com/pbsds/nmigen_dg"}
+nmigen = "^0.2"
+nmigen_boards = "^0.0"
+
+[tool.poetry.dev-dependencies]
+pytest = "^5.2"
+
+[build-system]
+requires = ["poetry>=0.12"]
+build-backend = "poetry.masonry.api"
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/test_fpga.py b/tests/test_fpga.py
new file mode 100644
index 0000000..ae4fff2
--- /dev/null
+++ b/tests/test_fpga.py
@@ -0,0 +1,5 @@
+from fpga import __version__
+
+
+def test_version():
+    assert __version__ == '0.1.0'