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build/generic_programmer: add automatic search/download of flash_proxy in repositories if not available locally.

This commit is contained in:
Florent Kermarrec 2020-04-15 08:59:03 +02:00
parent a298a9e568
commit 5e149ceda2
1 changed files with 29 additions and 5 deletions
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32
litex/build/generic_programmer.py
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@ -1,8 +1,11 @@
# This file is Copyright (c) 2015 Sebastien Bourdeauducq <sb@m-labs.hk>
# This file is Copyright (c) 2020 Florent Kermarrec <florent@enjoy-digital.fr>
# License: BSD
import os, sys
import os
import sys
import requests
from litex.build import tools
@ -12,25 +15,46 @@ class GenericProgrammer:
self.flash_proxy_dirs = [
"~/.migen", "/usr/local/share/migen", "/usr/share/migen",
"~/.mlabs", "/usr/local/share/mlabs", "/usr/share/mlabs",
"~/.litex", "/usr/local/share/litex", "/usr/share/litex"]
"~/.litex", "/usr/local/share/litex", "/usr/share/litex"
]
self.flash_proxy_repos = [
"https://github.com/quartiq/bscan_spi_bitstreams/raw/master/",
]
self.flash_proxy_local = "flash_proxies"
def set_flash_proxy_dir(self, flash_proxy_dir):
if flash_proxy_dir is not None:
self.flash_proxy_dirs = [flash_proxy_dir]
def find_flash_proxy(self):
# Search in installed flash_proxy_directories
for d in self.flash_proxy_dirs:
fulldir = os.path.abspath(os.path.expanduser(d))
fullname = tools.cygpath(os.path.join(fulldir, self.flash_proxy_basename))
if os.path.exists(fullname):
return fullname
# Search in local flash_proxy directory
fullname = tools.cygpath(os.path.join(self.flash_proxy_local, self.flash_proxy_basename))
if os.path.exists(fullname):
return fullname
# Search in repositories and download it
os.makedirs(self.flash_proxy_local, exist_ok=True)
for d in self.flash_proxy_repos:
fullname = tools.cygpath(os.path.join(self.flash_proxy_local, self.flash_proxy_basename))
try:
r = requests.get(d + self.flash_proxy_basename)
with open(fullname, "wb") as f:
f.write(r.content)
return fullname
except:
pass
raise OSError("Failed to find flash proxy bitstream")
# must be overloaded by specific programmer
# Must be overloaded by specific programmer
def load_bitstream(self, bitstream_file):
raise NotImplementedError
# must be overloaded by specific programmer
# Must be overloaded by specific programmer
def flash(self, address, data_file):
raise NotImplementedError