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Diffstat (limited to 'scripts/py/vsi/arm_vsi7.py')
| -rw-r--r-- | scripts/py/vsi/arm_vsi7.py | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/scripts/py/vsi/arm_vsi7.py b/scripts/py/vsi/arm_vsi7.py new file mode 100644 index 0000000..892433c --- /dev/null +++ b/scripts/py/vsi/arm_vsi7.py @@ -0,0 +1,207 @@ +#!/usr/bin/env python3 +# SPDX-FileCopyrightText: Copyright 2024 Arm Limited and/or its affiliates <open-source-office@arm.com> +# SPDX-License-Identifier: Apache-2.0 +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import logging +import vsi_video + +## Set verbosity level +#verbosity = logging.DEBUG +verbosity = logging.ERROR + +# [debugging] Verbosity settings +level = { 10: "DEBUG", 20: "INFO", 30: "WARNING", 40: "ERROR" } +logging.basicConfig(format='Py: VSI7: [%(levelname)s]\t%(message)s', level = verbosity) +logging.info("Verbosity level is set to " + level[verbosity]) + + +# Video Server configuration +server_address = ('127.0.0.1', 6003) +server_authkey = 'vsi_video' + + +# IRQ registers +IRQ_Status = 0 + +# Timer registers +Timer_Control = 0 +Timer_Interval = 0 + +# Timer Control register definitions +Timer_Control_Run_Msk = 1<<0 +Timer_Control_Periodic_Msk = 1<<1 +Timer_Control_Trig_IRQ_Msk = 1<<2 +Timer_Control_Trig_DMA_Msk = 1<<3 + +# DMA registers +DMA_Control = 0 + +# DMA Control register definitions +DMA_Control_Enable_Msk = 1<<0 +DMA_Control_Direction_Msk = 1<<1 +DMA_Control_Direction_P2M = 0<<1 +DMA_Control_Direction_M2P = 1<<1 + +# User registers +Regs = [0] * 64 + +# Data buffer +Data = bytearray() + + +## Initialize +# @return None +def init(): + logging.info("Python function init() called") + vsi_video.init(server_address, server_authkey) + + +## Read interrupt request (the VSI IRQ Status Register) +# @return value value read (32-bit) +def rdIRQ(): + global IRQ_Status + logging.info("Python function rdIRQ() called") + + value = IRQ_Status + logging.debug("Read interrupt request: {}".format(value)) + + return value + + +## Write interrupt request (the VSI IRQ Status Register) +# @param value value to write (32-bit) +# @return value value written (32-bit) +def wrIRQ(value): + global IRQ_Status + logging.info("Python function wrIRQ() called") + + value = vsi_video.wrIRQ(IRQ_Status, value) + IRQ_Status = value + logging.debug("Write interrupt request: {}".format(value)) + + return value + + +## Write Timer registers (the VSI Timer Registers) +# @param index Timer register index (zero based) +# @param value value to write (32-bit) +# @return value value written (32-bit) +def wrTimer(index, value): + global Timer_Control, Timer_Interval + logging.info("Python function wrTimer() called") + + if index == 0: + Timer_Control = value + logging.debug("Write Timer_Control: {}".format(value)) + elif index == 1: + Timer_Interval = value + logging.debug("Write Timer_Interval: {}".format(value)) + + return value + + +## Timer event (called at Timer Overflow) +# @return None +def timerEvent(): + global IRQ_Status + + logging.info("Python function timerEvent() called") + + IRQ_Status = vsi_video.timerEvent(IRQ_Status) + + +## Write DMA registers (the VSI DMA Registers) +# @param index DMA register index (zero based) +# @param value value to write (32-bit) +# @return value value written (32-bit) +def wrDMA(index, value): + global DMA_Control + logging.info("Python function wrDMA() called") + + if index == 0: + DMA_Control = value + logging.debug("Write DMA_Control: {}".format(value)) + + return value + + +## Read data from peripheral for DMA P2M transfer (VSI DMA) +# @param size size of data to read (in bytes, multiple of 4) +# @return data data read (bytearray) +def rdDataDMA(size): + global Data + logging.info("Python function rdDataDMA() called") + + Data = vsi_video.rdDataDMA(size) + + n = min(len(Data), size) + data = bytearray(size) + data[0:n] = Data[0:n] + logging.debug("Read data ({} bytes)".format(size)) + + return data + + +## Write data to peripheral for DMA M2P transfer (VSI DMA) +# @param data data to write (bytearray) +# @param size size of data to write (in bytes, multiple of 4) +# @return None +def wrDataDMA(data, size): + global Data + logging.info("Python function wrDataDMA() called") + + Data = data + logging.debug("Write data ({} bytes)".format(size)) + + vsi_video.wrDataDMA(data, size) + + return + + +## Read user registers (the VSI User Registers) +# @param index user register index (zero based) +# @return value value read (32-bit) +def rdRegs(index): + global Regs + logging.info("Python function rdRegs() called") + + if index <= vsi_video.REG_IDX_MAX: + Regs[index] = vsi_video.rdRegs(index) + + value = Regs[index] + logging.debug("Read user register at index {}: {}".format(index, value)) + + return value + + +## Write user registers (the VSI User Registers) +# @param index user register index (zero based) +# @param value value to write (32-bit) +# @return value value written (32-bit) +def wrRegs(index, value): + global Regs + logging.info("Python function wrRegs() called") + + if index <= vsi_video.REG_IDX_MAX: + value = vsi_video.wrRegs(index, value) + + Regs[index] = value + logging.debug("Write user register at index {}: {}".format(index, value)) + + return value + + +## @} + |