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Attempt uio with devmem. I give up on UIO for now

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Ciro Santilli
2017-08-05 23:06:47 +01:00
parent c6edbfddb0
commit 879001563a
4 changed files with 101 additions and 13 deletions
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15
rootfs_overlay/uio_read.sh Executable file
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#!/bin/sh
set -ex
modprobe uio_pci_generic
# pci_min device
echo '1234 11e9' > /sys/bus/pci/drivers/uio_pci_generic/new_id
/uio_read.out &
# Helper to observe interrupts.
insmod /irq.ko
base="$(setpci -d 1234:11e9 BASE_ADDRESS_0)"
# Start generating interrupt.
/devmem3.out "0x${base}" w 0x12345678
# Stop generating interrupt.
/devmem3.out "0x$(($base + 4))" w 0x12345678
/devmem3.out "0x${base}" w 0x12345678
/devmem3.out "0x$(($base + 4))" w 0x12345678