diff options
Diffstat (limited to 'shared-bindings/bitbangio/I2C.c')
| -rw-r--r-- | shared-bindings/bitbangio/I2C.c | 151 |
1 files changed, 74 insertions, 77 deletions
diff --git a/shared-bindings/bitbangio/I2C.c b/shared-bindings/bitbangio/I2C.c index 3c4f13777..2043fc903 100644 --- a/shared-bindings/bitbangio/I2C.c +++ b/shared-bindings/bitbangio/I2C.c @@ -37,21 +37,19 @@ #include "py/runtime.h" #include "supervisor/shared/translate.h" -//| .. currentmodule:: bitbangio +//| class I2C: +//| """Two wire serial protocol""" //| -//| :class:`I2C` --- Two wire serial protocol -//| ------------------------------------------ +//| def __init__(self, scl: microcontroller.Pin, sda: microcontroller.Pin, *, frequency: int = 400000, timeout: int): +//| """I2C is a two-wire protocol for communicating between devices. At the +//| physical level it consists of 2 wires: SCL and SDA, the clock and data +//| lines respectively. //| -//| .. class:: I2C(scl, sda, *, frequency=400000, timeout) -//| -//| I2C is a two-wire protocol for communicating between devices. At the -//| physical level it consists of 2 wires: SCL and SDA, the clock and data -//| lines respectively. -//| -//| :param ~microcontroller.Pin scl: The clock pin -//| :param ~microcontroller.Pin sda: The data pin -//| :param int frequency: The clock frequency of the bus -//| :param int timeout: The maximum clock stretching timeout in microseconds +//| :param ~microcontroller.Pin scl: The clock pin +//| :param ~microcontroller.Pin sda: The data pin +//| :param int frequency: The clock frequency of the bus +//| :param int timeout: The maximum clock stretching timeout in microseconds""" +//| ... //| STATIC mp_obj_t bitbangio_i2c_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { enum { ARG_scl, ARG_sda, ARG_frequency, ARG_timeout }; @@ -73,9 +71,9 @@ STATIC mp_obj_t bitbangio_i2c_make_new(const mp_obj_type_t *type, size_t n_args, return (mp_obj_t)self; } -//| .. method:: deinit() -//| -//| Releases control of the underlying hardware so other classes can use it. +//| def deinit(self, ) -> Any: +//| """Releases control of the underlying hardware so other classes can use it.""" +//| ... //| STATIC mp_obj_t bitbangio_i2c_obj_deinit(mp_obj_t self_in) { bitbangio_i2c_obj_t *self = MP_OBJ_TO_PTR(self_in); @@ -90,16 +88,16 @@ STATIC void check_for_deinit(bitbangio_i2c_obj_t *self) { } } -//| .. method:: __enter__() -//| -//| No-op used in Context Managers. +//| def __enter__(self, ) -> Any: +//| """No-op used in Context Managers.""" +//| ... //| // Provided by context manager helper. -//| .. method:: __exit__() -//| -//| Automatically deinitializes the hardware on context exit. See -//| :ref:`lifetime-and-contextmanagers` for more info. +//| def __exit__(self, ) -> Any: +//| """Automatically deinitializes the hardware on context exit. See +//| :ref:`lifetime-and-contextmanagers` for more info.""" +//| ... //| STATIC mp_obj_t bitbangio_i2c_obj___exit__(size_t n_args, const mp_obj_t *args) { (void)n_args; @@ -114,11 +112,11 @@ static void check_lock(bitbangio_i2c_obj_t *self) { } } -//| .. method:: scan() -//| -//| Scan all I2C addresses between 0x08 and 0x77 inclusive and return a list of -//| those that respond. A device responds if it pulls the SDA line low after -//| its address (including a read bit) is sent on the bus. +//| def scan(self, ) -> Any: +//| """Scan all I2C addresses between 0x08 and 0x77 inclusive and return a list of +//| those that respond. A device responds if it pulls the SDA line low after +//| its address (including a read bit) is sent on the bus.""" +//| ... //| STATIC mp_obj_t bitbangio_i2c_scan(mp_obj_t self_in) { bitbangio_i2c_obj_t *self = MP_OBJ_TO_PTR(self_in); @@ -136,9 +134,9 @@ STATIC mp_obj_t bitbangio_i2c_scan(mp_obj_t self_in) { } MP_DEFINE_CONST_FUN_OBJ_1(bitbangio_i2c_scan_obj, bitbangio_i2c_scan); -//| .. method:: try_lock() -//| -//| Attempts to grab the I2C lock. Returns True on success. +//| def try_lock(self, ) -> Any: +//| """Attempts to grab the I2C lock. Returns True on success.""" +//| ... //| STATIC mp_obj_t bitbangio_i2c_obj_try_lock(mp_obj_t self_in) { bitbangio_i2c_obj_t *self = MP_OBJ_TO_PTR(self_in); @@ -147,9 +145,9 @@ STATIC mp_obj_t bitbangio_i2c_obj_try_lock(mp_obj_t self_in) { } MP_DEFINE_CONST_FUN_OBJ_1(bitbangio_i2c_try_lock_obj, bitbangio_i2c_obj_try_lock); -//| .. method:: unlock() -//| -//| Releases the I2C lock. +//| def unlock(self, ) -> Any: +//| """Releases the I2C lock.""" +//| ... //| STATIC mp_obj_t bitbangio_i2c_obj_unlock(mp_obj_t self_in) { bitbangio_i2c_obj_t *self = MP_OBJ_TO_PTR(self_in); @@ -159,20 +157,20 @@ STATIC mp_obj_t bitbangio_i2c_obj_unlock(mp_obj_t self_in) { } MP_DEFINE_CONST_FUN_OBJ_1(bitbangio_i2c_unlock_obj, bitbangio_i2c_obj_unlock); -//| .. method:: readfrom_into(address, buffer, *, start=0, end=None) -//| -//| Read into ``buffer`` from the slave specified by ``address``. -//| The number of bytes read will be the length of ``buffer``. -//| At least one byte must be read. +//| def readfrom_into(self, address: int, buffer: bytearray, *, start: int = 0, end: int = None) -> Any: +//| """Read into ``buffer`` from the slave specified by ``address``. +//| The number of bytes read will be the length of ``buffer``. +//| At least one byte must be read. //| -//| If ``start`` or ``end`` is provided, then the buffer will be sliced -//| as if ``buffer[start:end]``. This will not cause an allocation like -//| ``buf[start:end]`` will so it saves memory. +//| If ``start`` or ``end`` is provided, then the buffer will be sliced +//| as if ``buffer[start:end]``. This will not cause an allocation like +//| ``buf[start:end]`` will so it saves memory. //| -//| :param int address: 7-bit device address -//| :param bytearray buffer: buffer to write into -//| :param int start: Index to start writing at -//| :param int end: Index to write up to but not include +//| :param int address: 7-bit device address +//| :param bytearray buffer: buffer to write into +//| :param int start: Index to start writing at +//| :param int end: Index to write up to but not include""" +//| ... //| // Shared arg parsing for readfrom_into and writeto_then_readfrom. STATIC void readfrom(bitbangio_i2c_obj_t *self, mp_int_t address, mp_obj_t buffer, int32_t start, mp_int_t end) { @@ -211,25 +209,25 @@ STATIC mp_obj_t bitbangio_i2c_readfrom_into(size_t n_args, const mp_obj_t *pos_a } MP_DEFINE_CONST_FUN_OBJ_KW(bitbangio_i2c_readfrom_into_obj, 3, bitbangio_i2c_readfrom_into); -//| .. method:: writeto(address, buffer, *, start=0, end=None, stop=True) +//| def writeto(self, address: int, buffer: bytearray, *, start: int = 0, end: int = None, stop: bool = True) -> Any: +//| """Write the bytes from ``buffer`` to the slave specified by ``address`` and then transmits a +//| stop bit. Use `writeto_then_readfrom` when needing a write, no stop and repeated start +//| before a read. //| -//| Write the bytes from ``buffer`` to the slave specified by ``address`` and then transmits a -//| stop bit. Use `writeto_then_readfrom` when needing a write, no stop and repeated start -//| before a read. +//| If ``start`` or ``end`` is provided, then the buffer will be sliced +//| as if ``buffer[start:end]``. This will not cause an allocation like +//| ``buffer[start:end]`` will so it saves memory. //| -//| If ``start`` or ``end`` is provided, then the buffer will be sliced -//| as if ``buffer[start:end]``. This will not cause an allocation like -//| ``buffer[start:end]`` will so it saves memory. +//| Writing a buffer or slice of length zero is permitted, as it can be used +//| to poll for the existence of a device. //| -//| Writing a buffer or slice of length zero is permitted, as it can be used -//| to poll for the existence of a device. -//| -//| :param int address: 7-bit device address -//| :param bytearray buffer: buffer containing the bytes to write -//| :param int start: Index to start writing from -//| :param int end: Index to read up to but not include -//| :param bool stop: If true, output an I2C stop condition after the buffer is written. -//| Deprecated. Will be removed in 6.x and act as stop=True. +//| :param int address: 7-bit device address +//| :param bytearray buffer: buffer containing the bytes to write +//| :param int start: Index to start writing from +//| :param int end: Index to read up to but not include +//| :param bool stop: If true, output an I2C stop condition after the buffer is written. +//| Deprecated. Will be removed in 6.x and act as stop=True.""" +//| ... //| // Shared arg parsing for writeto and writeto_then_readfrom. STATIC void writeto(bitbangio_i2c_obj_t *self, mp_int_t address, mp_obj_t buffer, int32_t start, mp_int_t end, bool stop) { @@ -271,23 +269,22 @@ STATIC mp_obj_t bitbangio_i2c_writeto(size_t n_args, const mp_obj_t *pos_args, m STATIC MP_DEFINE_CONST_FUN_OBJ_KW(bitbangio_i2c_writeto_obj, 1, bitbangio_i2c_writeto); -//| .. method:: writeto_then_readfrom(address, out_buffer, in_buffer, *, out_start=0, out_end=None, in_start=0, in_end=None) -//| -//| Write the bytes from ``out_buffer`` to the slave specified by ``address``, generate no stop -//| bit, generate a repeated start and read into ``in_buffer``. ``out_buffer`` and -//| ``in_buffer`` can be the same buffer because they are used sequentially. +//| def writeto_then_readfrom(self, address: int, out_buffer: bytearray, in_buffer: bytearray, *, out_start: int = 0, out_end: int = None, in_start: int = 0, in_end: int = None) -> Any: +//| """Write the bytes from ``out_buffer`` to the slave specified by ``address``, generate no stop +//| bit, generate a repeated start and read into ``in_buffer``. ``out_buffer`` and +//| ``in_buffer`` can be the same buffer because they are used sequentially. //| -//| If ``start`` or ``end`` is provided, then the corresponding buffer will be sliced -//| as if ``buffer[start:end]``. This will not cause an allocation like ``buf[start:end]`` -//| will so it saves memory. +//| If ``start`` or ``end`` is provided, then the corresponding buffer will be sliced +//| as if ``buffer[start:end]``. This will not cause an allocation like ``buf[start:end]`` +//| will so it saves memory. //| -//| :param int address: 7-bit device address -//| :param bytearray out_buffer: buffer containing the bytes to write -//| :param bytearray in_buffer: buffer to write into -//| :param int out_start: Index to start writing from -//| :param int out_end: Index to read up to but not include. Defaults to ``len(buffer)`` -//| :param int in_start: Index to start writing at -//| :param int in_end: Index to write up to but not include. Defaults to ``len(buffer)`` +//| :param int address: 7-bit device address +//| :param bytearray out_buffer: buffer containing the bytes to write +//| :param bytearray in_buffer: buffer to write into +//| :param int out_start: Index to start writing from +//| :param int out_end: Index to read up to but not include. Defaults to ``len(buffer)`` +//| :param int in_start: Index to start writing at +//| :param int in_end: Index to write up to but not include. Defaults to ``len(buffer)``""" //| STATIC mp_obj_t bitbangio_i2c_writeto_then_readfrom(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { enum { ARG_address, ARG_out_buffer, ARG_in_buffer, ARG_out_start, ARG_out_end, ARG_in_start, ARG_in_end }; |