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proxy: experiments: Add dp2hdmi.py for manual display config

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Mostly required due to unknown SMC gpio's reset state for
dp2hdmi-gpio.{function-dp2hdmi_pwr_en,function-hdmi_pwr_en}.

Signed-off-by: Janne Grunau <j@jannau.net>
This commit is contained in:
Janne Grunau 2023-02-01 14:40:40 +01:00
parent f9af0a1606
commit d98b0a3aa9
1 changed files with 46 additions and 0 deletions
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46
proxyclient/experiments/dp2hdmi.py Executable file
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#!/usr/bin/env python3
# SPDX-License-Identifier: MIT
import sys, pathlib
sys.path.append(str(pathlib.Path(__file__).resolve().parents[1]))
from m1n1.setup import *
from m1n1.shell import run_shell
from m1n1.fw.smc import SMCClient
smc_addr = u.adt["arm-io/smc"].get_reg(0)[0]
smc = SMCClient(u, smc_addr, None)
smc.verbose = 3
smc.start()
smc.start_ep(0x20)
smcep = smc.epmap[0x20]
# dp2hdmi-gpio.function-reset - not used at all by macos
# smcep.write('gP09', struct.pack("<I", 0x100001))
# smcep.write('gP09', struct.pack("<I", 0x100000))
smcep.write('gP16', struct.pack("<I", 0x800001))
smcep.write('gP15', struct.pack("<I", 0x800001))
force_dfp_pin = 0x28
hpd_pin = 0x31
gpio = u.adt["/arm-io/aop-gpio"]
base, size = gpio.get_reg(0)
print(f"gpio base: {base:#x}")
# macos reads force_dfp_pin only?
# p.write32(base + force_dfp_pin*4, 0x76a03)
p.write32(base + hpd_pin*4, 0x54b8d)
hdmi_hpd = p.read32(base + hpd_pin*4) & 0x1
print(f"HDMI hpd:{hdmi_hpd}")
# manual display config
config = u.malloc(256)
p.iface.writemem(config, b'1920x1080@60\0')
p.display_configure(config)
run_shell(globals(), msg="Have fun!")