mirror of
https://github.com/AsahiLinux/m1n1
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8010e38376
Add a basic SMC client and a script in experiments/ using it to enable the radios. Running this before booting Linux will make the network controller devices show up in lspci, even if Linux lacks an SMC driver. Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
31 lines
796 B
Python
31 lines
796 B
Python
#!/usr/bin/env python3
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# SPDX-License-Identifier: MIT
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import sys, pathlib
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import time
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sys.path.append(str(pathlib.Path(__file__).resolve().parents[1]))
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import struct
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from m1n1.setup import *
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from m1n1.fw.smc import SMCClient
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smc_addr = u.adt["arm-io/smc"].get_reg(0)[0]
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smc = SMCClient(u, smc_addr)
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smc.start()
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smc.start_ep(0x20)
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smcep = smc.epmap[0x20]
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def fourcc_key(fourcc):
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assert(len(fourcc) == 4)
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return sum([ord(x) << (8 * (3 - i)) for i, x in enumerate(fourcc)])
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def gpio_key(pin):
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assert(pin < (1 << 16))
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fourcc = 'gP' + ('00'+(hex(pin)[2:]))[-2:]
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return fourcc_key(fourcc)
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# Enable wifi/bluetooth
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RFKILL_PIN = 13
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smcep.write_key(gpio_key(RFKILL_PIN), struct.pack('<I', 0x800000 | 0x0))
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smcep.write_key(gpio_key(RFKILL_PIN), struct.pack('<I', 0x800000 | 0x1))
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