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#!/usr/bin/env python3
import ctypes
import argparse
import pandas as pd
# hex value for register: guid, gsnpsid, ghwcfg1, ghwcfg2, ghwcfg3, ghwcfg4
# Note: FS is FullSpeed, HS is HighSpeed
dwc2_reg_list = ['GUID', 'GSNPSID', 'GHWCFG1', 'GHWCFG2', 'GHWCFG3', 'GHWCFG4']
dwc2_reg_value = {
'AT32 F405 FS': [0x00002000, 0x4F54400A, 0x00000000, 0x228FDD00, 0x020004E8, 0x1FF0A020],
'AT32 F405 HS': [0, 0x4F54400A, 0x00000000, 0x229FDDD0, 0x03F006E8, 0x1FF0A020],
'AT32 F415': [0x00001000, 0x4F54400A, 0x00000000, 0x228DCD00, 0x020004E8, 0x0F],
'BCM2711 (Pi4)': [0x2708A000, 0x4F54280A, 0, 0x228DDD50, 0xFF000E8, 0x1FF00020],
'EFM32GG': [0, 0x4F54330A, 0, 0x228F5910, 0x01F204E8, 0x1BF08030],
'ESP32-S2/S3': [0, 0x4F54400A, 0, 0x224DD930, 0x0C804B5, 0xD3F0A030],
'ESP32-P4': [0, 0x4F54400A, 0, 0x215FFFD0, 0x03805EB5, 0xDFF1A030],
'nRF54H20': [0, 0x4F54430A, 0xAA555000, 0x228BFC72, 0x0BEAC0E8, 0x1E10AA60], # base on Preliminary Datasheet v0.7
'nRF54LM20': [0, 0x4F54500B, 0x00000000, 0x22AFFC52, 0x0BE0C0E8, 0x3E10AA60],
# ST sort by GUID
'ST F407/429 HS': [0x1100, 0x4F54281A, 0, 0x229ED590, 0x03F403E8, 0x17F00030],
'ST F207/F407/411/429 FS': [0x1200, 0x4F54281A, 0, 0x229DCD20, 0x020001E8, 0x0FF08030],
'ST L476 FS': [0x2000, 0x4F54310A, 0, 0x229ED520, 0x0200D1E8, 0x17F08030],
'ST F412/76x FS': [0x2000, 0x4F54320A, 0, 0x229ED520, 0x0200D1E8, 0x17F08030],
'ST F76x HS': [0x2100, 0x4F54320A, 0, 0x229FE190, 0x03EED2E8, 0x23F00030],
'ST H743/H750': [0x2300, 0x4F54330A, 0, 0x229FE190, 0x03B8D2E8, 0xE3F00030],
'ST F723/L4P5 FS': [0x3000, 0x4F54330A, 0, 0x229ED520, 0x0200D1E8, 0x17F08030],
'ST F723 HS': [0x3100, 0x4F54330A, 0, 0x229FE1D0, 0x03EED2E8, 0x23F00030],
'ST H7RS FS': [0x4000, 0x4F54411A, 0, 0x229ED522, 0x20081E8, 0x1610B230],
'ST U5A5/H7RS/N6 HS': [0x5000, 0x4F54411A, 0, 0x228FE052, 0x03B882E8, 0xE2103E30],
'XMC4500': [0xAEC000, 0x4F54292A, 0, 0x228F5930, 0x027A01E5, 0xDBF08030],
'GD32VF103': [0x1000, 0, 0, 0, 0, 0],
}
# Combine dwc2_info with dwc2_reg_list
# dwc2_info = {
# 'BCM2711 (Pi4)': {
# 'GUID': 0x2708A000,
# 'GSNPSID': 0x4F54280A,
# 'GHWCFG1': 0,
# 'GHWCFG2': 0x228DDD50,
# 'GHWCFG3': 0xFF000E8,
# 'GHWCFG4': 0x1FF00020
# },
dwc2_info = {key: {field: value for field, value in zip(dwc2_reg_list, values)} for key, values in dwc2_reg_value.items()}
class GHWCFG2(ctypes.LittleEndianStructure):
_fields_ = [
("op_mode", ctypes.c_uint32, 3),
("arch", ctypes.c_uint32, 2),
("single_point", ctypes.c_uint32, 1),
("hs_phy_type", ctypes.c_uint32, 2),
("fs_phy_type", ctypes.c_uint32, 2),
("num_dev_ep", ctypes.c_uint32, 4),
("num_host_ch", ctypes.c_uint32, 4),
("period_channel_support", ctypes.c_uint32, 1),
("enable_dynamic_fifo", ctypes.c_uint32, 1),
("mul_proc_intrpt", ctypes.c_uint32, 1),
("reserved21", ctypes.c_uint32, 1),
("nptx_q_depth", ctypes.c_uint32, 2),
("ptx_q_depth", ctypes.c_uint32, 2),
("token_q_depth", ctypes.c_uint32, 5),
("otg_enable_ic_usb", ctypes.c_uint32, 1)
]
class GHWCFG3(ctypes.LittleEndianStructure):
_fields_ = [
("xfer_size_width", ctypes.c_uint32, 4),
("packet_size_width", ctypes.c_uint32, 3),
("otg_enable", ctypes.c_uint32, 1),
("i2c_enable", ctypes.c_uint32, 1),
("vendor_ctrl_itf", ctypes.c_uint32, 1),
("optional_feature_removed", ctypes.c_uint32, 1),
("synch_reset", ctypes.c_uint32, 1),
("otg_adp_support", ctypes.c_uint32, 1),
("otg_enable_hsic", ctypes.c_uint32, 1),
("battery_charger_support", ctypes.c_uint32, 1),
("lpm_mode", ctypes.c_uint32, 1),
("dfifo_depth", ctypes.c_uint32, 16)
]
class GHWCFG4(ctypes.LittleEndianStructure):
_fields_ = [
("num_dev_period_in_ep", ctypes.c_uint32, 4),
("partial_powerdown", ctypes.c_uint32, 1),
("ahb_freq_min", ctypes.c_uint32, 1),
("hibernation", ctypes.c_uint32, 1),
("extended_hibernation", ctypes.c_uint32, 1),
("reserved8", ctypes.c_uint32, 1),
("enhanced_lpm_support1", ctypes.c_uint32, 1),
("service_interval_flow", ctypes.c_uint32, 1),
("ipg_isoc_support", ctypes.c_uint32, 1),
("acg_support", ctypes.c_uint32, 1),
("enhanced_lpm_support", ctypes.c_uint32, 1),
("phy_data_width", ctypes.c_uint32, 2),
("ctrl_ep_num", ctypes.c_uint32, 4),
("iddg_filter", ctypes.c_uint32, 1),
("vbus_valid_filter", ctypes.c_uint32, 1),
("a_valid_filter", ctypes.c_uint32, 1),
("b_valid_filter", ctypes.c_uint32, 1),
("session_end_filter", ctypes.c_uint32, 1),
("dedicated_fifos", ctypes.c_uint32, 1),
("num_dev_in_eps", ctypes.c_uint32, 4),
("dma_desc_enable", ctypes.c_uint32, 1),
("dma_desc_dynamic", ctypes.c_uint32, 1)
]
# mapping for specific fields in GHWCFG2
GHWCFG2_field = {
'op_mode': {
0: "HNP SRP",
1: "SRP",
2: "noHNP noSRP",
3: "SRP Device",
4: "noOTG Device",
5: "SRP Host",
6: "noOTG Host"
},
'arch': {
0: "Slave only",
1: "DMA external",
2: "DMA internal"
},
'single_point': {
0: "hub",
1: "n/a"
},
'hs_phy_type': {
0: "n/a",
1: "UTMI+",
2: "ULPI",
3: "UTMI+/ULPI"
},
'fs_phy_type': {
0: "n/a",
1: "Dedicated",
2: "Shared UTMI+",
3: "Shared ULPI"
},
'nptx_q_depth': {
0: "2",
1: "4",
2: "8",
},
'ptx_q_depth': {
0: "2",
1: "4",
2: "8",
3: "16"
},
}
# mapping for specific fields in GHWCFG4
GHWCFG4_field = {
'phy_data_width': {
0: "8 bit",
1: "16 bit",
2: "8/16 bit",
3: "Reserved"
},
}
def main():
"""Render dwc2_info to Markdown table"""
parser = argparse.ArgumentParser()
args = parser.parse_args()
# Create an empty list to hold the dictionaries
md_table = []
# Iterate over the dwc2_info dictionary and extract fields
for device, reg_values in dwc2_info.items():
md_item = {"Device": device}
for r_name, r_value in reg_values.items():
md_item[r_name] = f"0x{r_value:08X}"
if r_name == 'GSNPSID':
# Get dwc2 specs version
major = ((r_value >> 8) >> 4) & 0x0F
minor = (r_value >> 4) & 0xFF
patch = chr((r_value & 0x0F) + ord('a') - 0xA)
md_item[f' - specs version'] = f"{major:X}.{minor:02X}{patch}"
elif r_name in globals():
# Get bit-field values which exist as ctypes structures
class_hdl = globals()[r_name]
ghwcfg = class_hdl.from_buffer_copy(r_value.to_bytes(4, byteorder='little'))
for field_name, field_type, _ in class_hdl._fields_:
field_value = getattr(ghwcfg, field_name)
if class_hdl == GHWCFG2 and field_name in GHWCFG2_field:
field_value = GHWCFG2_field[field_name].get(field_value, f"Unknown ({field_value})")
if class_hdl == GHWCFG4 and field_name in GHWCFG4_field:
field_value = GHWCFG4_field[field_name].get(field_value, f"Unknown ({field_value})")
md_item[f' - {field_name}'] = field_value
md_table.append(md_item)
# Create a Pandas DataFrame from the list of dictionaries
df = pd.DataFrame(md_table).set_index('Device')
# Transpose the DataFrame to switch rows and columns
df = df.T
#print(df)
# Write the Markdown table to a file
with open('dwc2_info.md', 'w') as md_file:
md_file.write(df.to_markdown())
md_file.write('\n')
if __name__ == '__main__':
main()
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