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https://github.com/saymrwulf/uhd.git
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68 lines
2.2 KiB
Python
68 lines
2.2 KiB
Python
#
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# Copyright 2017 Ettus Research (National Instruments)
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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"""
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magnesium dboard implementation module
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"""
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from . import lib
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from .base import DboardManagerBase
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import struct
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from logging import getLogger
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LOG = getLogger(__name__)
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class magnesium(DboardManagerBase):
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"""
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Holds all dboard specific information and methods of the magnesium dboard
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"""
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hw_pid = 2
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special_eeprom_addrs = {"special0": "something"}
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spi_chipselect = {"0": "lmk", "1": "mykonos", "2": "random"}
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spidevs = {}
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lmk = ""
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mykonos = ""
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random = ""
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def __init__(self, spi_devices, eeprom_data, *args, **kwargs):
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# eeprom_data is a tuple (head_dict, raw_data)
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if len(spi_devices) != len(self.spi_chipselect):
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LOG.error("Expected {0} spi devices, found {1} spi devices".format(len(spi_devices), len(self.spi_chipselect)))
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exit(1)
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for spi in spi_devices:
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device = self.spi_chipselect.get(spi[-1], None)
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if self.chipselect is None:
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LOG.error("Unexpected chipselect {0}".format(spi[-1]))
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exit(1)
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setattr(self, device, spi)
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super(magnesium, self).__init__(*args, **kwargs)
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def init_device(self):
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"""
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Execute necessary init dance to bring up dboard
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"""
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LOG.debug("initialize hardware")
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self._device = lib.dboards.magnesium(
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self.lmk, self.mykonos, self.random)
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def read_eeprom_v1(self, data):
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"""
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read eeprom data version 1
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"""
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# magnesium eeprom contains
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# nothing
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return struct.unpack_from("x", data)
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