scripts: utils: pinctrl_nrf_migrate: support more peripherals
Add support for more peripherals: - I2C - SPI (master mode assumed) - PDM - QDEC - QSPI - PWM - I2S Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
This commit is contained in:
Gerard Marull-Paretas
Carles Cufí
parent
c1ad91405d
commit
8b91cb0cd4
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@ -20,6 +20,8 @@ partially ported.
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Devicetree files will be converted correctly. **ADJUSTED/GENERATED FILES
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MUST BE MANUALLY REVIEWED**.
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Known limitations: All SPI nodes will be assumed to be a master device.
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Usage::
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python3 pinctrl_nrf_migrate.py
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@ -95,17 +97,24 @@ class PIN_CONFIG(enum.Enum):
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PULL_UP = "bias-pull-up"
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PULL_DOWN = "bias-pull-down"
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LOW_POWER = "low-power-enable"
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NORDIC_INVERT = "nordic,invert"
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class Device(object):
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"""Device configuration class"""
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def __init__(
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self, pattern: str, callback: Callable, signals: Dict[str, str]
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self,
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pattern: str,
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callback: Callable,
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signals: Dict[str, str],
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needs_sleep: bool,
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) -> None:
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self.pattern = pattern
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self.callback = callback
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self.signals = signals
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self.needs_sleep = needs_sleep
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self.attrs = {}
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class SignalMapping(object):
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@ -272,7 +281,7 @@ def fmt_pinctrl_groups(groups: List[PinGroup]) -> str:
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# write psels entries
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for i, mapping in enumerate(group.pins):
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prefix = "psels = " if i == 0 else " "
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prefix = "psels = " if i == 0 else "\t"
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suffix = ";" if i == len(group.pins) - 1 else ","
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pin = mapping.pin
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port = 0 if pin < 32 else 1
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@ -291,17 +300,19 @@ def fmt_pinctrl_groups(groups: List[PinGroup]) -> str:
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return content
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def fmt_states(device: str, indent: str) -> str:
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def fmt_states(device: str, indent: str, needs_sleep: bool) -> str:
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"""Format state entries for the given device.
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Args:
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device: Device name.
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indent: Indentation.
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needs_sleep: If sleep entry is needed.
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Returns:
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State entries to be appended to the device.
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"""
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if needs_sleep:
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return "\n".join(
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(
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f"{indent}pinctrl-0 = <&{device}_default>;",
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@ -309,6 +320,13 @@ def fmt_states(device: str, indent: str) -> str:
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f'{indent}pinctrl-names = "default", "sleep";\n',
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)
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)
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else:
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return "\n".join(
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(
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f"{indent}pinctrl-0 = <&{device}_default>;",
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f'{indent}pinctrl-names = "default";\n',
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)
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)
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def insert_pinctrl_include(content: List[str], board: str) -> None:
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@ -365,6 +383,7 @@ def adjust_content(content: List[str], board: str) -> List[DeviceConfiguration]:
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configs: List[DeviceConfiguration] = []
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level = 0
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in_device = False
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states_written = False
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new_content = []
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@ -384,10 +403,11 @@ def adjust_content(content: List[str], board: str) -> List[DeviceConfiguration]:
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break
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# we are now inside a device node
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in_device = True
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level = 1
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in_device = True
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states_written = False
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else:
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# entering subnode
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# entering subnode (must come after all properties)
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if re.match(r"[^\/\*]*{.*", line):
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level += 1
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# exiting subnode (or device node)
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@ -407,10 +427,14 @@ def adjust_content(content: List[str], board: str) -> List[DeviceConfiguration]:
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# process each device line, append states at the end
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if current_device:
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if in_device:
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if level == 1:
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line = current_device.callback(config, current_device.signals, line)
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else:
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line = fmt_states(config.name, indent) + line
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if (level == 2 or not in_device) and not states_written:
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line = (
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fmt_states(config.name, indent, current_device.needs_sleep)
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+ line
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)
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states_written = True
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current_device = None
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if line:
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@ -431,7 +455,7 @@ def adjust_content(content: List[str], board: str) -> List[DeviceConfiguration]:
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def match_and_store_pin(
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config: DeviceConfiguration, signals: Dict[str, str], line: str
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) -> bool:
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) -> Optional[str]:
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"""Match and store a pin mapping.
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Args:
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@ -440,15 +464,23 @@ def match_and_store_pin(
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line: Line containing potential pin mapping.
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Returns:
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True if line contains a pin mapping, False otherwise.
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Line if found a pin mapping, None otherwise.
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"""
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m = re.match(r"\s*([a-z]+)-pin\s*=\s*<(\d+)>.*", line)
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# handle qspi special case for io-pins (array case)
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m = re.match(r"\s*io-pins\s*=\s*([\s<>,0-9]+).*", line)
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if m:
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pins = re.sub(r"[<>,]", "", m.group(1)).split()
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for i, pin in enumerate(pins):
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config.set_signal_pin(signals[f"io{i}"], int(pin))
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return
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m = re.match(r"\s*([a-z]+\d?)-pins?\s*=\s*<(\d+)>.*", line)
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if m:
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config.set_signal_pin(signals[m.group(1)], int(m.group(2)))
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return True
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return
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return False
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return line
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#
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@ -460,14 +492,52 @@ def process_uart(config: DeviceConfiguration, signals, line: str) -> Optional[st
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"""Process UART/UARTE devices."""
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# check if line specifies a pin
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if match_and_store_pin(config, signals, line):
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return None
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if not match_and_store_pin(config, signals, line):
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return
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# check if pull-up is specified
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m = re.match(r"\s*([a-z]+)-pull-up.*", line)
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if m:
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config.add_signal_config(signals[m.group(1)], PIN_CONFIG.PULL_UP)
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return None
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return
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return line
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def process_spi(config: DeviceConfiguration, signals, line: str) -> Optional[str]:
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"""Process SPI devices."""
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# check if line specifies a pin
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if not match_and_store_pin(config, signals, line):
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return
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# check if pull-up is specified
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m = re.match(r"\s*miso-pull-up.*", line)
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if m:
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config.add_signal_config(signals["miso"], PIN_CONFIG.PULL_UP)
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return
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# check if pull-down is specified
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m = re.match(r"\s*miso-pull-down.*", line)
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if m:
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config.add_signal_config(signals["miso"], PIN_CONFIG.PULL_DOWN)
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return
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return line
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def process_pwm(config: DeviceConfiguration, signals, line: str) -> Optional[str]:
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"""Process PWM devices."""
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# check if line specifies a pin
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if not match_and_store_pin(config, signals, line):
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return
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# check if channel inversion is specified
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m = re.match(r"\s*([a-z0-9]+)-inverted.*", line)
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if m:
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config.add_signal_config(signals[m.group(1)], PIN_CONFIG.NORDIC_INVERT)
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return
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return line
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@ -482,6 +552,81 @@ DEVICES = [
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"rts": "UART_RTS",
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"cts": "UART_CTS",
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},
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needs_sleep=True,
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),
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Device(
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r"i2c\d",
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match_and_store_pin,
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{
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"sda": "TWIM_SDA",
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"scl": "TWIM_SCL",
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},
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needs_sleep=True,
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),
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Device(
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r"spi\d",
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process_spi,
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{
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"sck": "SPIM_SCK",
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"miso": "SPIM_MISO",
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"mosi": "SPIM_MOSI",
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},
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needs_sleep=True,
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),
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Device(
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r"pdm\d",
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match_and_store_pin,
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{
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"clk": "PDM_CLK",
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"din": "PDM_DIN",
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},
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needs_sleep=False,
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),
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Device(
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r"qdec",
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match_and_store_pin,
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{
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"a": "QDEC_A",
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"b": "QDEC_B",
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"led": "QDEC_LED",
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},
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needs_sleep=True,
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),
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Device(
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r"qspi",
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match_and_store_pin,
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{
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"sck": "QSPI_SCK",
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"io0": "QSPI_IO0",
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"io1": "QSPI_IO1",
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"io2": "QSPI_IO2",
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"io3": "QSPI_IO3",
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"csn": "QSPI_CSN",
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},
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needs_sleep=True,
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),
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Device(
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r"pwm\d",
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process_pwm,
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{
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"ch0": "PWM_OUT0",
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"ch1": "PWM_OUT1",
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"ch2": "PWM_OUT2",
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"ch3": "PWM_OUT3",
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},
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needs_sleep=True,
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),
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Device(
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r"i2s\d",
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match_and_store_pin,
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{
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"sck": "I2S_SCK_M",
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"lrck": "I2S_LRCK_M",
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"sdout": "I2S_SDOUT",
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"sdin": "I2S_SDIN",
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"mck": "I2S_MCK",
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},
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needs_sleep=False,
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),
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]
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"""Supported devices and associated configuration"""
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@ -533,10 +678,7 @@ if __name__ == "__main__":
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help="Skip checking if board is nRF-based",
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)
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parser.add_argument(
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"--header",
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default="",
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type=str,
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help="Header to be prepended to pinctrl files"
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"--header", default="", type=str, help="Header to be prepended to pinctrl files"
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)
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args = parser.parse_args()
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