GitHub - Matviy/FPGA_Driver: Basic PCI FPGA driver interfaced from user mode via char device

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Basic PCI FPGA driver interfaced from user mode via char device

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Name		Name	Last commit message	Last commit date
Latest commit History 13 Commits
Makefile		Makefile
README		README
fpga.c		fpga.c
fpga.h		fpga.h
test.py		test.py

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Minimal Linux PCI FPGA Driver Module, allows reading/writing arbitrary registers via char device.
Usually, you'd just mmap() the PCI resource, but this is for fun.

root@localhost:~/fpga_module# python3 test.py
Write Tests:
['0xaa', '0xbb', '0xcc', '0xdd']
['0x11', '0x22', '0xcc', '0xdd']

Read Tests:
Register: CLOCK_LATCH_FREQ Value: 24999955
Register: LED_FLASH_RATE Value: 255
Register: FAN_1_SPEED Value: 5000
Register: FAN_2_SPEED Value: 5000
Register: TEMP_SENSOR_LEFT Value: 45
Register: TEMP_SENSOR_RIGHT Value: 40
Register: SCRATCH Value: 3721142801
root@localhost:~/fpga_module#

Can easily be extended to support driving I2C/SMBus cores...etc.