mirror of https://github.com/efabless/caravel.git
80 lines
2.8 KiB
Python
80 lines
2.8 KiB
Python
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from cocotb.handle import SimHandleBase
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from cocotb.binary import BinaryValue
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from enum import Enum
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import cocotb
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"""return the value and the size of the signal"""
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def signal_value_size(path:SimHandleBase):
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value = path.value
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size = value.n_bits
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return value, size
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"""
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Create a binaryValue object with all Z that helps when drive to drive only the bits needed
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return value with all z and the size
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"""
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def signal_valueZ_size(path:SimHandleBase):
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value = path.value
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size = value.n_bits
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value = BinaryValue(value = int(size) * 'z',n_bits=size)
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return value, size
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def int_to_bin_list(number:bin,number_of_bits)-> list:
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data = bin(number)
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data = data[2:].zfill(number_of_bits)[::-1]
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bits = [int(bit) for bit in data]
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return bits
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def drive_hdl(path,bits,data):
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hdl , n_bits = signal_value_size(path)
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is_list_of_lists = all(isinstance(x, list) for x in bits)
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is_list_of_tuples = all(isinstance(x, tuple) for x in bits)
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if is_list_of_lists | is_list_of_tuples:
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for i,bits2 in enumerate(bits):
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hdl[n_bits-1-bits2[0]:n_bits-1-bits2[1]] = data[i]
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else:
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hdl[n_bits-1-bits[0]:n_bits-1-bits[1]] = data
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path.value = hdl
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cocotb.log.debug(f' [common] drive { path._path } with {hdl}')
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"""Enum for GPIO modes valus used to configured the pins"""
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class GPIO_MODE(Enum):
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GPIO_MODE_MGMT_STD_INPUT_NOPULL = 0x0403
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GPIO_MODE_MGMT_STD_INPUT_PULLDOWN = 0x0803
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GPIO_MODE_MGMT_STD_INPUT_PULLUP = 0x0c03
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GPIO_MODE_MGMT_STD_OUTPUT = 0x1809
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GPIO_MODE_MGMT_STD_INPUT = 0x1803 # TODO: ask if this legal the default value for first 2 bin is like that
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GPIO_MODE_MGMT_STD_BIDIRECTIONAL = 0x1801
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GPIO_MODE_MGMT_STD_ANALOG = 0x000b
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GPIO_MODE_USER_STD_INPUT_NOPULL = 0x0402
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GPIO_MODE_USER_STD_INPUT_PULLDOWN = 0x0802
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GPIO_MODE_USER_STD_INPUT_PULLUP = 0x0c02
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GPIO_MODE_USER_STD_OUTPUT = 0x1808
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GPIO_MODE_USER_STD_BIDIRECTIONAL = 0x1800
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GPIO_MODE_USER_STD_OUT_MONITORED = 0x1802
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GPIO_MODE_USER_STD_ANALOG = 0x000a
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class MASK_GPIO_CTRL(Enum):
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MASK_GPIO_CTRL_MGMT_EN = 0
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MASK_GPIO_CTRL_OUT_DIS = 1
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MASK_GPIO_CTRL_OVERRIDE = 2
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MASK_GPIO_CTRL_INP_DIS = 3
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MASK_GPIO_CTRL_MOD_SEL = 4
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MASK_GPIO_CTRL_ANLG_EN = 5
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MASK_GPIO_CTRL_ANLG_SEL = 6
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MASK_GPIO_CTRL_ANLG_POL = 7
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MASK_GPIO_CTRL_SLOW = 8
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MASK_GPIO_CTRL_TRIP = 9
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MASK_GPIO_CTRL_DGTL_MODE = 10
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Macros= {}
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def fill_macros(macros_hdl):
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Macros['MPRJ_IO_PADS_1'] = macros_hdl.MPRJ_IO_PADS_1.value.integer
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Macros['MPRJ_IO_PADS_2'] = macros_hdl.MPRJ_IO_PADS_2.value.integer
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Macros['MPRJ_IO_PADS'] = macros_hdl.MPRJ_IO_PADS.value.integer
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Macros['GL'] = macros_hdl.GL.value.integer
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