diff options
Diffstat (limited to 'shared-bindings/nativeio')
| -rw-r--r-- | shared-bindings/nativeio/AnalogIn.c | 106 | ||||
| -rw-r--r-- | shared-bindings/nativeio/AnalogIn.h | 38 | ||||
| -rw-r--r-- | shared-bindings/nativeio/AnalogOut.c | 121 | ||||
| -rw-r--r-- | shared-bindings/nativeio/AnalogOut.h | 39 | ||||
| -rw-r--r-- | shared-bindings/nativeio/DigitalInOut.c | 445 | ||||
| -rw-r--r-- | shared-bindings/nativeio/DigitalInOut.h | 68 | ||||
| -rw-r--r-- | shared-bindings/nativeio/I2C.c | 180 | ||||
| -rw-r--r-- | shared-bindings/nativeio/I2C.h | 64 | ||||
| -rw-r--r-- | shared-bindings/nativeio/PWMOut.c | 151 | ||||
| -rw-r--r-- | shared-bindings/nativeio/PWMOut.h | 40 | ||||
| -rw-r--r-- | shared-bindings/nativeio/SPI.c | 167 | ||||
| -rw-r--r-- | shared-bindings/nativeio/SPI.h | 51 | ||||
| -rw-r--r-- | shared-bindings/nativeio/__init__.c | 122 | ||||
| -rw-r--r-- | shared-bindings/nativeio/__init__.h | 34 |
14 files changed, 1626 insertions, 0 deletions
diff --git a/shared-bindings/nativeio/AnalogIn.c b/shared-bindings/nativeio/AnalogIn.c new file mode 100644 index 000000000..9c5a601da --- /dev/null +++ b/shared-bindings/nativeio/AnalogIn.c @@ -0,0 +1,106 @@ +/* + * This file is part of the Micro Python project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2013, 2014 Damien P. George + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include <string.h> + +#include "py/binary.h" +#include "py/mphal.h" +#include "py/nlr.h" +#include "py/objproperty.h" +#include "py/runtime.h" +#include "shared-bindings/nativeio/AnalogIn.h" + +//| .. currentmodule:: nativeio +//| +//| :class:`AnalogIn` -- read analog voltage +//| ============================================ +//| +//| Usage:: +//| +//| import nativeio +//| from board import * +//| +//| with nativeio.AnalogIn(A1) as adc: +//| val = adc.value +//| + +//| .. class:: AnalogIn(pin) +//| +//| Use the AnalogIn on the given pin. +//| +//| :param ~microcontroller.Pin pin: the pin to read from +//| +STATIC mp_obj_t nativeio_analogin_make_new(const mp_obj_type_t *type, + mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) { + // check number of arguments + mp_arg_check_num(n_args, n_kw, 1, 1, false); + + // 1st argument is the pin + mp_obj_t pin_obj = args[0]; + + nativeio_analogin_obj_t *self = m_new_obj(nativeio_analogin_obj_t); + self->base.type = &nativeio_analogin_type; + const mcu_pin_obj_t *pin = MP_OBJ_TO_PTR(pin_obj); + common_hal_nativeio_analogin_construct(self, pin); + + return (mp_obj_t) self; +} + +//| .. attribute:: value +//| +//| Read the value on the analog pin and return it. The returned value +//| will be between 0 and 65535 inclusive (16-bit). Even if the underlying +//| analog to digital converter (ADC) is lower resolution, the result will +//| be scaled to be 16-bit. +//| +//| :return: the data read +//| :rtype: int +//| +STATIC mp_obj_t nativeio_analogin_obj_get_value(mp_obj_t self_in) { + nativeio_analogin_obj_t *self = MP_OBJ_TO_PTR(self_in); + return MP_OBJ_NEW_SMALL_INT(common_hal_nativeio_analogin_get_value(self)); +} +MP_DEFINE_CONST_FUN_OBJ_1(nativeio_analogin_get_value_obj, nativeio_analogin_obj_get_value); + +mp_obj_property_t nativeio_analogin_value_obj = { + .base.type = &mp_type_property, + .proxy = {(mp_obj_t)&nativeio_analogin_get_value_obj, + (mp_obj_t)&mp_const_none_obj, + (mp_obj_t)&mp_const_none_obj}, +}; + +STATIC const mp_rom_map_elem_t nativeio_analogin_locals_dict_table[] = { + { MP_OBJ_NEW_QSTR(MP_QSTR_value), MP_ROM_PTR(&nativeio_analogin_value_obj)}, +}; + +STATIC MP_DEFINE_CONST_DICT(nativeio_analogin_locals_dict, nativeio_analogin_locals_dict_table); + +const mp_obj_type_t nativeio_analogin_type = { + { &mp_type_type }, + .name = MP_QSTR_AnalogIn, + .make_new = nativeio_analogin_make_new, + .locals_dict = (mp_obj_t)&nativeio_analogin_locals_dict, +}; diff --git a/shared-bindings/nativeio/AnalogIn.h b/shared-bindings/nativeio/AnalogIn.h new file mode 100644 index 000000000..e901aa3b7 --- /dev/null +++ b/shared-bindings/nativeio/AnalogIn.h @@ -0,0 +1,38 @@ +/* + * This file is part of the Micro Python project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2013, 2014 Damien P. George + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO_ANALOGIN_H__ +#define __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO_ANALOGIN_H__ + +#include "common-hal/microcontroller/types.h" +#include "common-hal/nativeio/types.h" + +extern const mp_obj_type_t nativeio_analogin_type; + +void common_hal_nativeio_analogin_construct(nativeio_analogin_obj_t* self, const mcu_pin_obj_t *pin); +uint16_t common_hal_nativeio_analogin_get_value(nativeio_analogin_obj_t *self); + +#endif // __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO_ANALOGIN_H__ diff --git a/shared-bindings/nativeio/AnalogOut.c b/shared-bindings/nativeio/AnalogOut.c new file mode 100644 index 000000000..7de336a6a --- /dev/null +++ b/shared-bindings/nativeio/AnalogOut.c @@ -0,0 +1,121 @@ +/* + * This file is part of the Micro Python project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2013, 2014 Damien P. George + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include <stdint.h> +#include <string.h> + +#include "py/objproperty.h" +#include "py/runtime.h" +#include "shared-bindings/nativeio/AnalogOut.h" + +//| .. currentmodule:: nativeio +//| +//| :class:`AnalogOut` -- output analog voltage +//| ============================================ +//| +//| The AnalogOut is used to output analog values (a specific voltage). +//| +//| Example usage:: +//| +//| import nativeio +//| from microcontroller import pin +//| +//| with nativeio.AnalogOut(pin.PA02) as dac: # output on pin PA02 +//| dac.value = 32768 # makes PA02 1.65V +//| + +//| .. class:: AnalogOut(pin) +//| +//| Use the AnalogOut on the given pin. +//| +//| :param ~microcontroller.Pin pin: the pin to output to +//| +STATIC mp_obj_t nativeio_analogout_make_new(const mp_obj_type_t *type, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) { + // check arguments + mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true); + + nativeio_analogout_obj_t *self = m_new_obj(nativeio_analogout_obj_t); + self->base.type = &nativeio_analogout_type; + + const mcu_pin_obj_t *pin = MP_OBJ_TO_PTR(args[0]); + + common_hal_nativeio_analogout_construct(self, pin); + + return self; +} + +//| .. method:: deinit() +//| +//| Turn off the AnalogOut and release the pin for other use. +//| +STATIC mp_obj_t nativeio_analogout_deinit(mp_obj_t self_in) { + nativeio_analogout_obj_t *self = self_in; + + common_hal_nativeio_analogout_deinit(self); + + return mp_const_none; +} +STATIC MP_DEFINE_CONST_FUN_OBJ_1(nativeio_analogout_deinit_obj, nativeio_analogout_deinit); + +//| .. attribute:: value +//| +//| The value on the analog pin. The value must be between 0 and 65535 +//| inclusive (16-bit). Even if the underlying digital to analog converter +//| is lower resolution, the input must be scaled to be 16-bit. +//| +//| :return: the last value written +//| :rtype: int +//| +STATIC mp_obj_t nativeio_analogout_obj_set_value(mp_obj_t self_in, mp_obj_t value) { + nativeio_analogout_obj_t *self = MP_OBJ_TO_PTR(self_in); + common_hal_nativeio_analogout_set_value(self, mp_obj_get_int(value)); + return mp_const_none; +} +MP_DEFINE_CONST_FUN_OBJ_2(nativeio_analogout_set_value_obj, nativeio_analogout_obj_set_value); + +mp_obj_property_t nativeio_analogout_value_obj = { + .base.type = &mp_type_property, + .proxy = {(mp_obj_t)&mp_const_none_obj, + (mp_obj_t)&nativeio_analogout_set_value_obj, + (mp_obj_t)&mp_const_none_obj}, +}; + +STATIC const mp_rom_map_elem_t nativeio_analogout_locals_dict_table[] = { + // instance methods + { MP_OBJ_NEW_QSTR(MP_QSTR_deinit), (mp_obj_t)&nativeio_analogout_deinit_obj }, + + // Properties + { MP_OBJ_NEW_QSTR(MP_QSTR_value), (mp_obj_t)&nativeio_analogout_value_obj }, +}; + +STATIC MP_DEFINE_CONST_DICT(nativeio_analogout_locals_dict, nativeio_analogout_locals_dict_table); + +const mp_obj_type_t nativeio_analogout_type = { + { &mp_type_type }, + .name = MP_QSTR_AnalogOut, + .make_new = nativeio_analogout_make_new, + .locals_dict = (mp_obj_t)&nativeio_analogout_locals_dict, +}; diff --git a/shared-bindings/nativeio/AnalogOut.h b/shared-bindings/nativeio/AnalogOut.h new file mode 100644 index 000000000..195e4c313 --- /dev/null +++ b/shared-bindings/nativeio/AnalogOut.h @@ -0,0 +1,39 @@ +/* + * This file is part of the Micro Python project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2013, 2014 Damien P. George + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO_ANALOGOUT_H__ +#define __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO_ANALOGOUT_H__ + +#include "common-hal/microcontroller/types.h" +#include "common-hal/nativeio/types.h" + +extern const mp_obj_type_t nativeio_analogout_type; + +void common_hal_nativeio_analogout_construct(nativeio_analogout_obj_t* self, const mcu_pin_obj_t *pin); +void common_hal_nativeio_analogout_deinit(nativeio_analogout_obj_t *self); +void common_hal_nativeio_analogout_set_value(nativeio_analogout_obj_t *self, uint16_t value); + +#endif // __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO_ANALOGOUT_H__ diff --git a/shared-bindings/nativeio/DigitalInOut.c b/shared-bindings/nativeio/DigitalInOut.c new file mode 100644 index 000000000..ce1e12986 --- /dev/null +++ b/shared-bindings/nativeio/DigitalInOut.c @@ -0,0 +1,445 @@ +/* + * This file is part of the Micro Python project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2013, 2014 Damien P. George + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include <stdint.h> +#include <string.h> + +#include "py/nlr.h" +#include "py/objtype.h" +#include "py/objproperty.h" +#include "py/runtime.h" +#include "py/mphal.h" + +#include "shared-bindings/nativeio/DigitalInOut.h" + +//| .. currentmodule:: nativeio +//| +//| :class:`DigitalInOut` -- digital input and output +//| ========================================================= +//| +//| A DigitalInOut is used to digitally control I/O pins. For analog control of +//| a pin, see the :py:class:`~nativeio.AnalogIn` and +//| :py:class:`~nativeio.AnalogOut` classes. +//| + +//| .. class:: DigitalInOut(pin) +//| +//| Create a new DigitalInOut object associated with the pin. Defaults to input +//| with no pull. Use :py:meth:`switch_to_input` and +//| :py:meth:`switch_to_output` to change the direction. +//| +//| :param ~microcontroller.Pin pin: The pin to control +//| +STATIC mp_obj_t nativeio_digitalinout_make_new(const mp_obj_type_t *type, + mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) { + mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true); + + nativeio_digitalinout_obj_t *self = m_new_obj(nativeio_digitalinout_obj_t); + self->base.type = &nativeio_digitalinout_type; + + mcu_pin_obj_t *pin = MP_OBJ_TO_PTR(args[0]); + common_hal_nativeio_digitalinout_construct(self, pin); + + return (mp_obj_t)self; +} + +//| .. method:: deinit() +//| +//| Turn off the DigitalInOut and release the pin for other use. +//| +STATIC mp_obj_t nativeio_digitalinout_obj_deinit(mp_obj_t self_in) { + nativeio_digitalinout_obj_t *self = MP_OBJ_TO_PTR(self_in); + common_hal_nativeio_digitalinout_deinit(self); + return mp_const_none; +} +MP_DEFINE_CONST_FUN_OBJ_1(nativeio_digitalinout_deinit_obj, nativeio_digitalinout_obj_deinit); + +//| .. method:: __enter__() +//| +//| No-op used by Context Managers. +//| +STATIC mp_obj_t nativeio_digitalinout_obj___enter__(mp_obj_t self_in) { + return self_in; +} +MP_DEFINE_CONST_FUN_OBJ_1(nativeio_digitalinout___enter___obj, nativeio_digitalinout_obj___enter__); + +//| .. method:: __exit__() +//| +//| Automatically deinitializes the hardware when exiting a context. +//| +STATIC mp_obj_t nativeio_digitalinout_obj___exit__(size_t n_args, const mp_obj_t *args) { + (void)n_args; + common_hal_nativeio_digitalinout_deinit(args[0]); + return mp_const_none; +} +STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(nativeio_digitalinout_obj___exit___obj, 4, 4, nativeio_digitalinout_obj___exit__); + +//| +//| .. method:: switch_to_output(value=False, drive_mode=DriveMode.push_pull) +//| +//| Switch to writing out digital values. +//| +//| :param bool value: default value to set upon switching +//| :param DriveMode push_pull: drive mode for the output +//| +typedef struct { + mp_obj_base_t base; +} nativeio_digitalinout_drive_mode_obj_t; +extern const nativeio_digitalinout_drive_mode_obj_t nativeio_digitalinout_drive_mode_push_pull_obj; +extern const nativeio_digitalinout_drive_mode_obj_t nativeio_digitalinout_drive_mode_open_drain_obj; + +STATIC mp_obj_t nativeio_digitalinout_switch_to_output(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { + enum { ARG_value, ARG_drive_mode }; + static const mp_arg_t allowed_args[] = { + { MP_QSTR_value, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} }, + { MP_QSTR_drive_mode, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = &nativeio_digitalinout_drive_mode_push_pull_obj} }, + }; + nativeio_digitalinout_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]); + mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; + mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); + + enum digitalinout_drive_mode_t drive_mode = DRIVE_MODE_PUSH_PULL; + if (args[ARG_drive_mode].u_rom_obj == &nativeio_digitalinout_drive_mode_open_drain_obj) { + drive_mode = DRIVE_MODE_OPEN_DRAIN; + } + // do the transfer + common_hal_nativeio_digitalinout_switch_to_output(self, args[ARG_value].u_bool, drive_mode); + return mp_const_none; +} +MP_DEFINE_CONST_FUN_OBJ_KW(nativeio_digitalinout_switch_to_output_obj, 1, nativeio_digitalinout_switch_to_output); + +//| .. method:: switch_to_input(pull=None) +//| +//| Switch to read in digital values. +//| +//| :param Pull pull: pull configuration for the input +//| +typedef struct { + mp_obj_base_t base; +} nativeio_digitalinout_pull_obj_t; +extern const nativeio_digitalinout_pull_obj_t nativeio_digitalinout_pull_up_obj; +extern const nativeio_digitalinout_pull_obj_t nativeio_digitalinout_pull_down_obj; + +STATIC mp_obj_t nativeio_digitalinout_switch_to_input(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { + enum { ARG_pull }; + static const mp_arg_t allowed_args[] = { + { MP_QSTR_value, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = mp_const_none} }, + }; + nativeio_digitalinout_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]); + mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; + mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); + + enum digitalinout_pull_t pull = PULL_NONE; + if (args[ARG_pull].u_rom_obj == &nativeio_digitalinout_pull_up_obj) { + pull = PULL_UP; + }else if (args[ARG_pull].u_rom_obj == &nativeio_digitalinout_pull_down_obj) { + pull = PULL_DOWN; + } + // do the transfer + common_hal_nativeio_digitalinout_switch_to_input(self, pull); + return mp_const_none; +} +MP_DEFINE_CONST_FUN_OBJ_KW(nativeio_digitalinout_switch_to_input_obj, 1, nativeio_digitalinout_switch_to_input); + +//| .. attribute:: direction +//| +//| Get the direction of the pin. +//| +//| :raises AttributeError: when set. Use :py:meth:`switch_to_input` and :py:meth:`switch_to_output` to change the direction. +//| +typedef struct { + mp_obj_base_t base; +} nativeio_digitalinout_direction_obj_t; +extern const nativeio_digitalinout_direction_obj_t nativeio_digitalinout_direction_in_obj; +extern const nativeio_digitalinout_direction_obj_t nativeio_digitalinout_direction_out_obj; + +STATIC mp_obj_t nativeio_digitalinout_obj_get_direction(mp_obj_t self_in) { + nativeio_digitalinout_obj_t *self = MP_OBJ_TO_PTR(self_in); + enum digitalinout_direction_t direction = common_hal_nativeio_digitalinout_get_direction(self); + if (direction == DIRECTION_IN) { + return (mp_obj_t)&nativeio_digitalinout_direction_in_obj; + } + return (mp_obj_t)&nativeio_digitalinout_direction_out_obj; +} +MP_DEFINE_CONST_FUN_OBJ_1(nativeio_digitalinout_get_direction_obj, nativeio_digitalinout_obj_get_direction); + +mp_obj_property_t nativeio_digitalinout_direction_obj = { + .base.type = &mp_type_property, + .proxy = {(mp_obj_t)&nativeio_digitalinout_get_direction_obj, + (mp_obj_t)&mp_const_none_obj, + (mp_obj_t)&mp_const_none_obj}, +}; + +//| .. attribute:: value +//| +//| Get or set the digital logic level of the pin. +//| +STATIC mp_obj_t nativeio_digitalinout_obj_get_value(mp_obj_t self_in) { + nativeio_digitalinout_obj_t *self = MP_OBJ_TO_PTR(self_in); + bool value = common_hal_nativeio_digitalinout_get_value(self); + return mp_obj_new_bool(value); +} +MP_DEFINE_CONST_FUN_OBJ_1(nativeio_digitalinout_get_value_obj, nativeio_digitalinout_obj_get_value); + +STATIC mp_obj_t nativeio_digitalinout_obj_set_value(mp_obj_t self_in, mp_obj_t value) { + nativeio_digitalinout_obj_t *self = MP_OBJ_TO_PTR(self_in); + if (common_hal_nativeio_digitalinout_get_direction(self) == DIRECTION_IN) { + nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, + "Cannot set value when direction is input.")); + return mp_const_none; + } + common_hal_nativeio_digitalinout_set_value(self, mp_obj_is_true(value)); + return mp_const_none; +} +MP_DEFINE_CONST_FUN_OBJ_2(nativeio_digitalinout_set_value_obj, nativeio_digitalinout_obj_set_value); + +mp_obj_property_t nativeio_digitalinout_value_obj = { + .base.type = &mp_type_property, + .proxy = {(mp_obj_t)&nativeio_digitalinout_get_value_obj, + (mp_obj_t)&nativeio_digitalinout_set_value_obj, + (mp_obj_t)&mp_const_none_obj}, +}; + +//| .. attribute:: drive_mode +//| +//| Get or set the pin drive mode. +//| +STATIC mp_obj_t nativeio_digitalinout_obj_get_drive_mode(mp_obj_t self_in) { + nativeio_digitalinout_obj_t *self = MP_OBJ_TO_PTR(self_in); + if (common_hal_nativeio_digitalinout_get_direction(self) == DIRECTION_IN) { + nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, + "Drive mode not used when direction is input.")); + return mp_const_none; + } + enum digitalinout_drive_mode_t drive_mode = common_hal_nativeio_digitalinout_get_drive_mode(self); + if (drive_mode == DRIVE_MODE_PUSH_PULL) { + return (mp_obj_t)&nativeio_digitalinout_drive_mode_push_pull_obj; + } + return (mp_obj_t)&nativeio_digitalinout_drive_mode_open_drain_obj; +} +MP_DEFINE_CONST_FUN_OBJ_1(nativeio_digitalinout_get_drive_mode_obj, nativeio_digitalinout_obj_get_drive_mode); + +STATIC mp_obj_t nativeio_digitalinout_obj_set_drive_mode(mp_obj_t self_in, mp_obj_t drive_mode) { + nativeio_digitalinout_obj_t *self = MP_OBJ_TO_PTR(self_in); + if (common_hal_nativeio_digitalinout_get_direction(self) == DIRECTION_IN) { + nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, + "Drive mode not used when direction is input.")); + return mp_const_none; + } + enum digitalinout_drive_mode_t c_drive_mode = DRIVE_MODE_PUSH_PULL; + if (drive_mode == &nativeio_digitalinout_drive_mode_open_drain_obj) { + c_drive_mode = DRIVE_MODE_OPEN_DRAIN; + } + common_hal_nativeio_digitalinout_set_drive_mode(self, c_drive_mode); + return mp_const_none; +} +MP_DEFINE_CONST_FUN_OBJ_2(nativeio_digitalinout_set_drive_mode_obj, nativeio_digitalinout_obj_set_drive_mode); + +mp_obj_property_t nativeio_digitalinout_drive_mode_obj = { + .base.type = &mp_type_property, + .proxy = {(mp_obj_t)&nativeio_digitalinout_get_drive_mode_obj, + (mp_obj_t)&nativeio_digitalinout_set_drive_mode_obj, + (mp_obj_t)&mp_const_none_obj}, +}; + +//| .. attribute:: pull +//| +//| Get or set the pin pull. +//| +//| :raises AttributeError: if the direction is `out`. +//| +STATIC mp_obj_t nativeio_digitalinout_obj_get_pull(mp_obj_t self_in) { + nativeio_digitalinout_obj_t *self = MP_OBJ_TO_PTR(self_in); + if (common_hal_nativeio_digitalinout_get_direction(self) == DIRECTION_OUT) { + nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, + "Pull not used when direction is output.")); + return mp_const_none; + } + enum digitalinout_pull_t pull = common_hal_nativeio_digitalinout_get_pull(self); + if (pull == PULL_UP) { + return (mp_obj_t)&nativeio_digitalinout_pull_up_obj; + } else if (pull == PULL_DOWN) { + return (mp_obj_t)&nativeio_digitalinout_pull_down_obj; + } + return (mp_obj_t)&mp_const_none_obj; +} +MP_DEFINE_CONST_FUN_OBJ_1(nativeio_digitalinout_get_pull_obj, nativeio_digitalinout_obj_get_pull); + +STATIC mp_obj_t nativeio_digitalinout_obj_set_pull(mp_obj_t self_in, mp_obj_t pull) { + nativeio_digitalinout_obj_t *self = MP_OBJ_TO_PTR(self_in); + if (common_hal_nativeio_digitalinout_get_direction(self) == DIRECTION_OUT) { + nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, + "Pull not used when direction is output.")); + return mp_const_none; + } + common_hal_nativeio_digitalinout_set_pull(self, (enum digitalinout_pull_t) MP_OBJ_SMALL_INT_VALUE(pull)); + return mp_const_none; +} +MP_DEFINE_CONST_FUN_OBJ_2(nativeio_digitalinout_set_pull_obj, nativeio_digitalinout_obj_set_pull); + +mp_obj_property_t nativeio_digitalinout_pull_obj = { + .base.type = &mp_type_property, + .proxy = {(mp_obj_t)&nativeio_digitalinout_get_pull_obj, + (mp_obj_t)&nativeio_digitalinout_set_pull_obj, + (mp_obj_t)&mp_const_none_obj}, +}; + +//| .. class:: microcontroller.DigitalInOut.Direction +//| +//| Enum-like class to define which direction the digital values are +//| going. +//| +//| .. data:: in +//| +//| Read digital data in +//| +//| .. data:: out +//| +//| Write digital data out +//| +const mp_obj_type_t nativeio_digitalinout_direction_type; + +const nativeio_digitalinout_direction_obj_t nativeio_digitalinout_direction_in_obj = { + { &nativeio_digitalinout_direction_type }, +}; + +const nativeio_digitalinout_direction_obj_t nativeio_digitalinout_direction_out_obj = { + { &nativeio_digitalinout_direction_type }, +}; + +STATIC const mp_rom_map_elem_t nativeio_digitalinout_direction_locals_dict_table[] = { + { MP_ROM_QSTR(MP_QSTR_in), MP_ROM_PTR(&nativeio_digitalinout_direction_in_obj) }, + { MP_ROM_QSTR(MP_QSTR_out), MP_ROM_PTR(&nativeio_digitalinout_direction_out_obj) }, +}; +STATIC MP_DEFINE_CONST_DICT(nativeio_digitalinout_direction_locals_dict, nativeio_digitalinout_direction_locals_dict_table); + +const mp_obj_type_t nativeio_digitalinout_direction_type = { + { &mp_type_type }, + .name = MP_QSTR_Direction, + .locals_dict = (mp_obj_t)&nativeio_digitalinout_direction_locals_dict, +}; + +//| .. class:: nativeio.DigitalInOut.DriveMode +//| +//| Enum-like class to define the drive mode used when outputting +//| digital values. +//| +//| .. data:: push_pull +//| +//| Output both high and low digital values +//| +//| .. data:: open_drain +//| +//| Output low digital values but go into high z for digital high. This is +//| useful for i2c and other protocols that share a digital line. +//| +const mp_obj_type_t nativeio_digitalinout_drive_mode_type; + +const nativeio_digitalinout_drive_mode_obj_t nativeio_digitalinout_drive_mode_push_pull_obj = { + { &nativeio_digitalinout_drive_mode_type }, +}; + +const nativeio_digitalinout_drive_mode_obj_t nativeio_digitalinout_drive_mode_open_drain_obj = { + { &nativeio_digitalinout_drive_mode_type }, +}; + +STATIC const mp_rom_map_elem_t nativeio_digitalinout_drive_mode_locals_dict_table[] = { + { MP_ROM_QSTR(MP_QSTR_push_pull), MP_ROM_PTR(&nativeio_digitalinout_drive_mode_push_pull_obj) }, + { MP_ROM_QSTR(MP_QSTR_open_drain), MP_ROM_PTR(&nativeio_digitalinout_drive_mode_open_drain_obj) }, +}; +STATIC MP_DEFINE_CONST_DICT(nativeio_digitalinout_drive_mode_locals_dict, nativeio_digitalinout_drive_mode_locals_dict_table); + +const mp_obj_type_t nativeio_digitalinout_drive_mode_type = { + { &mp_type_type }, + .name = MP_QSTR_DriveMode, + .locals_dict = (mp_obj_t)&nativeio_digitalinout_drive_mode_locals_dict, +}; + +//| .. class:: nativeio.DigitalInOut.Pull +//| +//| Enum-like class to define the pull value, if any, used while reading +//| digital values in. +//| +//| .. data:: up +//| +//| When the input line isn't being driven the pull up can pull the state +//| of the line high so it reads as true. +//| +//| .. data:: down +//| +//| When the input line isn't being driven the pull down can pull the +//| state of the line low so it reads as false. +//| +const mp_obj_type_t nativeio_digitalinout_pull_type; + +const nativeio_digitalinout_pull_obj_t nativeio_digitalinout_pull_up_obj = { + { &nativeio_digitalinout_pull_type }, +}; + +const nativeio_digitalinout_pull_obj_t nativeio_digitalinout_pull_down_obj = { + { &nativeio_digitalinout_pull_type }, +}; + +STATIC const mp_rom_map_elem_t nativeio_digitalinout_pull_locals_dict_table[] = { + { MP_ROM_QSTR(MP_QSTR_up), MP_ROM_PTR(&nativeio_digitalinout_pull_up_obj) }, + { MP_ROM_QSTR(MP_QSTR_down), MP_ROM_PTR(&nativeio_digitalinout_pull_down_obj) }, +}; +STATIC MP_DEFINE_CONST_DICT(nativeio_digitalinout_pull_locals_dict, nativeio_digitalinout_pull_locals_dict_table); + +const mp_obj_type_t nativeio_digitalinout_pull_type = { + { &mp_type_type }, + .name = MP_QSTR_Pull, + .locals_dict = (mp_obj_t)&nativeio_digitalinout_pull_locals_dict, +}; + +STATIC const mp_rom_map_elem_t nativeio_digitalinout_locals_dict_table[] = { + // instance methods + { MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&nativeio_digitalinout_deinit_obj) }, + { MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&nativeio_digitalinout___enter___obj) }, + { MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&nativeio_digitalinout_obj___exit___obj) }, + { MP_ROM_QSTR(MP_QSTR_switch_to_output), MP_ROM_PTR(&nativeio_digitalinout_switch_to_output_obj) }, + { MP_ROM_QSTR(MP_QSTR_switch_to_input), MP_ROM_PTR(&nativeio_digitalinout_switch_to_input_obj) }, + + // Properties + { MP_ROM_QSTR(MP_QSTR_direction), MP_ROM_PTR(&nativeio_digitalinout_direction_obj) }, + { MP_ROM_QSTR(MP_QSTR_value), MP_ROM_PTR(&nativeio_digitalinout_value_obj) }, + { MP_ROM_QSTR(MP_QSTR_drive_mode), MP_ROM_PTR(&nativeio_digitalinout_drive_mode_obj) }, + { MP_ROM_QSTR(MP_QSTR_pull), MP_ROM_PTR(&nativeio_digitalinout_pull_obj) }, + + // Nested Enum-like Classes. + { MP_ROM_QSTR(MP_QSTR_Direction), MP_ROM_PTR(&nativeio_digitalinout_direction_type) }, + { MP_ROM_QSTR(MP_QSTR_DriveMode), MP_ROM_PTR(&nativeio_digitalinout_drive_mode_type) }, + { MP_ROM_QSTR(MP_QSTR_Pull), MP_ROM_PTR(&nativeio_digitalinout_pull_type) }, +}; + +STATIC MP_DEFINE_CONST_DICT(nativeio_digitalinout_locals_dict, nativeio_digitalinout_locals_dict_table); + +const mp_obj_type_t nativeio_digitalinout_type = { + { &mp_type_type }, + .name = MP_QSTR_DigitalInOut, + .make_new = nativeio_digitalinout_make_new, + .locals_dict = (mp_obj_t)&nativeio_digitalinout_locals_dict, +}; diff --git a/shared-bindings/nativeio/DigitalInOut.h b/shared-bindings/nativeio/DigitalInOut.h new file mode 100644 index 000000000..b712a811c --- /dev/null +++ b/shared-bindings/nativeio/DigitalInOut.h @@ -0,0 +1,68 @@ +/* + * This file is part of the Micro Python project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2013, 2014 Damien P. George + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO_DIGITALINOUT_H__ +#define __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO_DIGITALINOUT_H__ + +#include "common-hal/microcontroller/types.h" +#include "common-hal/nativeio/types.h" + +extern const mp_obj_type_t nativeio_digitalinout_type; + +enum digitalinout_direction_t { + DIRECTION_IN, + DIRECTION_OUT +}; + +enum digitalinout_pull_t { + PULL_NONE, + PULL_UP, + PULL_DOWN +}; + +enum digitalinout_drive_mode_t { + DRIVE_MODE_PUSH_PULL, + DRIVE_MODE_OPEN_DRAIN +}; + +typedef enum { + DIGITALINOUT_OK, + DIGITALINOUT_PIN_BUSY +} digitalinout_result_t; + +digitalinout_result_t common_hal_nativeio_digitalinout_construct(nativeio_digitalinout_obj_t* self, const mcu_pin_obj_t* pin); +void common_hal_nativeio_digitalinout_deinit(nativeio_digitalinout_obj_t* self); +void common_hal_nativeio_digitalinout_switch_to_input(nativeio_digitalinout_obj_t* self, enum digitalinout_pull_t pull); +void common_hal_nativeio_digitalinout_switch_to_output(nativeio_digitalinout_obj_t* self, bool value, enum digitalinout_drive_mode_t drive_mode); +enum digitalinout_direction_t common_hal_nativeio_digitalinout_get_direction(nativeio_digitalinout_obj_t* self); +void common_hal_nativeio_digitalinout_set_value(nativeio_digitalinout_obj_t* self, bool value); +bool common_hal_nativeio_digitalinout_get_value(nativeio_digitalinout_obj_t* self); +void common_hal_nativeio_digitalinout_set_drive_mode(nativeio_digitalinout_obj_t* self, enum digitalinout_drive_mode_t drive_mode); +enum digitalinout_drive_mode_t common_hal_nativeio_digitalinout_get_drive_mode(nativeio_digitalinout_obj_t* self); +void common_hal_nativeio_digitalinout_set_pull(nativeio_digitalinout_obj_t* self, enum digitalinout_pull_t pull); +enum digitalinout_pull_t common_hal_nativeio_digitalinout_get_pull(nativeio_digitalinout_obj_t* self); + +#endif // __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO_DIGITALINOUT_H__ diff --git a/shared-bindings/nativeio/I2C.c b/shared-bindings/nativeio/I2C.c new file mode 100644 index 000000000..325d7c56b --- /dev/null +++ b/shared-bindings/nativeio/I2C.c @@ -0,0 +1,180 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2016 Scott Shawcroft + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +// This file contains all of the Python API definitions for the +// nativeio.I2C class. + +#include "shared-bindings/nativeio/I2C.h" + +#include "py/runtime.h" +//| .. currentmodule:: nativeio +//| +//| :class:`I2C` --- Two wire serial protocol +//| ------------------------------------------ +//| +//| .. class:: I2C(scl, sda, \*, freq=400000) +//| +//| 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 freq: The clock frequency +//| +STATIC mp_obj_t nativeio_i2c_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *pos_args) { + mp_arg_check_num(n_args, n_kw, 0, MP_OBJ_FUN_ARGS_MAX, true); + nativeio_i2c_obj_t *self = m_new_obj(nativeio_i2c_obj_t); + self->base.type = &nativeio_i2c_type; + mp_map_t kw_args; + mp_map_init_fixed_table(&kw_args, n_kw, pos_args + n_args); + enum { ARG_scl, ARG_sda, ARG_freq }; + static const mp_arg_t allowed_args[] = { + { MP_QSTR_scl, MP_ARG_REQUIRED | MP_ARG_OBJ }, + { MP_QSTR_sda, MP_ARG_REQUIRED | MP_ARG_OBJ }, + { MP_QSTR_freq, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 400000} }, + }; + mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; + mp_arg_parse_all(n_args, pos_args, &kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); + const mcu_pin_obj_t* scl = MP_OBJ_TO_PTR(args[ARG_scl].u_obj); + const mcu_pin_obj_t* sda = MP_OBJ_TO_PTR(args[ARG_sda].u_obj); + common_hal_nativeio_i2c_construct(self, scl, sda, args[ARG_freq].u_int); + return (mp_obj_t)self; +} + +//| .. method:: I2C.deinit() +//| +//| Releases control of the underlying hardware so other classes can use it. +//| +STATIC mp_obj_t nativeio_i2c_obj_deinit(mp_obj_t self_in) { + nativeio_i2c_obj_t *self = MP_OBJ_TO_PTR(self_in); + common_hal_nativeio_i2c_deinit(self); + return mp_const_none; +} +MP_DEFINE_CONST_FUN_OBJ_1(nativeio_i2c_deinit_obj, nativeio_i2c_obj_deinit); + +//| .. method:: I2C.__enter__() +//| +//| No-op used in Context Managers. +//| +STATIC mp_obj_t nativeio_i2c_obj___enter__(mp_obj_t self_in) { + return self_in; +} +MP_DEFINE_CONST_FUN_OBJ_1(nativeio_i2c___enter___obj, nativeio_i2c_obj___enter__); + +//| .. method:: I2C.__exit__() +//| +//| Automatically deinitializes the hardware on context exit. +//| +STATIC mp_obj_t nativeio_i2c_obj___exit__(size_t n_args, const mp_obj_t *args) { + (void)n_args; + common_hal_nativeio_i2c_deinit(args[0]); + return mp_const_none; +} +STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(nativeio_i2c_obj___exit___obj, 4, 4, nativeio_i2c_obj___exit__); + +//| .. method:: I2C.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. +//| +STATIC mp_obj_t nativeio_i2c_scan(mp_obj_t self_in) { + nativeio_i2c_obj_t *self = MP_OBJ_TO_PTR(self_in); + mp_obj_t list = mp_obj_new_list(0, NULL); + // 7-bit addresses 0b0000xxx and 0b1111xxx are reserved + for (int addr = 0x08; addr < 0x78; ++addr) { + bool success = common_hal_nativeio_i2c_probe(self, addr); + if (success) { + mp_obj_list_append(list, MP_OBJ_NEW_SMALL_INT(addr)); + } + } + return list; +} +MP_DEFINE_CONST_FUN_OBJ_1(nativeio_i2c_scan_obj, nativeio_i2c_scan); + +//| .. method:: I2C.readfrom_into(address, buffer) +//| +//| Read into ``buffer`` from the slave specified by ``address``. +//| The number of bytes read will be the length of `buf`. +//| +STATIC mp_obj_t nativeio_i2c_readfrom_into(mp_obj_t self_in, mp_obj_t addr_in, mp_obj_t buf_in) { + nativeio_i2c_obj_t *self = MP_OBJ_TO_PTR(self_in); + mp_buffer_info_t bufinfo; + mp_get_buffer_raise(buf_in, &bufinfo, MP_BUFFER_WRITE); + common_hal_nativeio_i2c_read(self, mp_obj_get_int(addr_in), (uint8_t*)bufinfo.buf, bufinfo.len); + return mp_const_none; +} +MP_DEFINE_CONST_FUN_OBJ_3(nativeio_i2c_readfrom_into_obj, nativeio_i2c_readfrom_into); + +//| .. method:: I2C.writeto(address, buffer, stop=True) +//| +//| Write the bytes from ``buffer`` to the slave specified by ``address``. +//| Transmits a stop bit if ``stop`` is set. +//| +STATIC mp_obj_t nativeio_i2c_writeto(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { + enum { ARG_address, ARG_buffer, ARG_stop }; + static const mp_arg_t allowed_args[] = { + { MP_QSTR_address, MP_ARG_REQUIRED | MP_ARG_INT, {.u_int = 0} }, + { MP_QSTR_buffer, MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} }, + { MP_QSTR_stop, MP_ARG_BOOL, {.u_bool = true} }, + }; + nativeio_i2c_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]); + mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; + mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); + + // get the buffer to write the data from + mp_buffer_info_t bufinfo; + mp_get_buffer_raise(args[ARG_buffer].u_obj, &bufinfo, MP_BUFFER_READ); + + // do the transfer + bool ok = common_hal_nativeio_i2c_write(self, args[ARG_address].u_int, + bufinfo.buf, bufinfo.len, args[ARG_stop].u_bool); + if (!ok) { + nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "I2C bus error")); + } + return mp_const_none; +} +STATIC MP_DEFINE_CONST_FUN_OBJ_KW(nativeio_i2c_writeto_obj, 1, nativeio_i2c_writeto); + +STATIC const mp_rom_map_elem_t nativeio_i2c_locals_dict_table[] = { + { MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&nativeio_i2c_deinit_obj) }, + { MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&nativeio_i2c___enter___obj) }, + { MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&nativeio_i2c_obj___exit___obj) }, + { MP_ROM_QSTR(MP_QSTR_scan), MP_ROM_PTR(&nativeio_i2c_scan_obj) }, + + { MP_ROM_QSTR(MP_QSTR_readfrom_into), MP_ROM_PTR(&nativeio_i2c_readfrom_into_obj) }, + { MP_ROM_QSTR(MP_QSTR_writeto), MP_ROM_PTR(&nativeio_i2c_writeto_obj) }, +}; + +STATIC MP_DEFINE_CONST_DICT(nativeio_i2c_locals_dict, nativeio_i2c_locals_dict_table); + +const mp_obj_type_t nativeio_i2c_type = { + { &mp_type_type }, + .name = MP_QSTR_I2C, + .make_new = nativeio_i2c_make_new, + .locals_dict = (mp_obj_dict_t*)&nativeio_i2c_locals_dict, +}; diff --git a/shared-bindings/nativeio/I2C.h b/shared-bindings/nativeio/I2C.h new file mode 100644 index 000000000..9f90de536 --- /dev/null +++ b/shared-bindings/nativeio/I2C.h @@ -0,0 +1,64 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2016 Scott Shawcroft + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +// Machine is the HAL for low-level, hardware accelerated functions. It is not +// meant to simplify APIs, its only meant to unify them so that other modules +// do not require port specific logic. +// +// This file includes externs for all functions a port should implement to +// support the machine module. + +#ifndef __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO_I2C_H__ +#define __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO_I2C_H__ + +#include "py/obj.h" + +#include "common-hal/microcontroller/types.h" +#include "common-hal/nativeio/types.h" + +// Type object used in Python. Should be shared between ports. +extern const mp_obj_type_t nativeio_i2c_type; + +// Initializes the hardware peripheral. +extern void common_hal_nativeio_i2c_construct(nativeio_i2c_obj_t *self, + const mcu_pin_obj_t * scl, + const mcu_pin_obj_t * sda, + uint32_t freq); + +extern void common_hal_nativeio_i2c_deinit(nativeio_i2c_obj_t *self); + +// Probe the bus to see if a device acknowledges the given address. +extern bool common_hal_nativeio_i2c_probe(nativeio_i2c_obj_t *self, uint8_t addr); + +extern bool common_hal_nativeio_i2c_write(nativeio_i2c_obj_t *self, uint16_t address, + const uint8_t * data, size_t len, + bool stop); + +// Reads memory of the i2c device picking up where it left off. +extern bool common_hal_nativeio_i2c_read(nativeio_i2c_obj_t *self, uint16_t address, + uint8_t * data, size_t len); + +#endif // __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO_I2C_H__ diff --git a/shared-bindings/nativeio/PWMOut.c b/shared-bindings/nativeio/PWMOut.c new file mode 100644 index 000000000..13897ad1d --- /dev/null +++ b/shared-bindings/nativeio/PWMOut.c @@ -0,0 +1,151 @@ +/* + * This file is part of the Micro Python project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2016 Damien P. George + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include <stdint.h> + +#include "py/objproperty.h" +#include "py/runtime.h" +#include "shared-bindings/nativeio/PWMOut.h" + +//| .. currentmodule:: nativeio +//| +//| :class:`PWMOut` -- Output a Pulse Width Modulated signal +//| ======================================================== +//| +//| PWMOut can be used to output a PWM signal on a given pin. +//| +//| .. class:: PWMOut(pin, duty=0) +//| +//| Create a PWM object associated with the given pin. This allows you to +//| write PWM signals out on the given pin. Frequency is currently fixed at +//| ~735Hz like Arduino. +//| +//| :param ~microcontroller.Pin pin: The pin to output to +//| +STATIC mp_obj_t nativeio_pwmout_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) { + mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true); + mp_obj_t pin_obj = args[0]; + const mcu_pin_obj_t *pin = MP_OBJ_TO_PTR(pin_obj); + + // create PWM object from the given pin + nativeio_pwmout_obj_t *self = m_new_obj(nativeio_pwmout_obj_t); + self->base.type = &nativeio_pwmout_type; + + mp_map_t kw_args; + mp_map_init_fixed_table(&kw_args, n_kw, args + n_args); + enum { ARG_duty }; + static const mp_arg_t allowed_args[] = { + { MP_QSTR_duty, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} }, + }; + mp_arg_val_t parsed_args[MP_ARRAY_SIZE(allowed_args)]; + mp_arg_parse_all(n_args - 1, args + 1, &kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, parsed_args); + uint8_t duty = parsed_args[ARG_duty].u_int; + + common_hal_nativeio_pwmout_construct(self, pin, duty); + + return MP_OBJ_FROM_PTR(self); +} + +//| .. method:: deinit() +//| +//| Deinitialises the PWMOut and releases any hardware resources for reuse. +//| +STATIC mp_obj_t nativeio_pwmout_deinit(mp_obj_t self_in) { + nativeio_pwmout_obj_t *self = MP_OBJ_TO_PTR(self_in); + common_hal_nativeio_pwmout_deinit(self); + return mp_const_none; +} +STATIC MP_DEFINE_CONST_FUN_OBJ_1(nativeio_pwmout_deinit_obj, nativeio_pwmout_deinit); + +//| .. method:: __enter__() +//| +//| No-op used by Context Managers. +//| +STATIC mp_obj_t nativeio_pwmout_obj___enter__(mp_obj_t self_in) { + return self_in; +} +MP_DEFINE_CONST_FUN_OBJ_1(nativeio_pwmout___enter___obj, nativeio_pwmout_obj___enter__); + +//| .. method:: __exit__() +//| +//| Automatically deinitializes the hardware when exiting a context. +//| +STATIC mp_obj_t nativeio_pwmout_obj___exit__(size_t n_args, const mp_obj_t *args) { + (void)n_args; + common_hal_nativeio_pwmout_deinit(args[0]); + return mp_const_none; +} +STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(nativeio_pwmout_obj___exit___obj, 4, 4, nativeio_pwmout_obj___exit__); + +//| .. attribute:: duty_cycle +//| +//| 8 bit value that dictates how much of one cycle is high (1) versus low +//| (0). 255 will always be high, 0 will always be low and 127 will be half +//| high and then half low. +STATIC mp_obj_t nativeio_pwmout_obj_get_duty_cycle(mp_obj_t self_in) { + nativeio_pwmout_obj_t *self = MP_OBJ_TO_PTR(self_in); + return MP_OBJ_NEW_SMALL_INT(common_hal_nativeio_pwmout_get_duty_cycle(self)); +} +MP_DEFINE_CONST_FUN_OBJ_1(nativeio_pwmout_get_duty_cycle_obj, nativeio_pwmout_obj_get_duty_cycle); + +STATIC mp_obj_t nativeio_pwmout_obj_set_duty_cycle(mp_obj_t self_in, mp_obj_t duty_cycle) { + nativeio_pwmout_obj_t *self = MP_OBJ_TO_PTR(self_in); + mp_int_t duty = mp_obj_get_int(duty_cycle); + if (duty < 0 || duty > 255) { + nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, + "PWM duty must be between 0 and 255 (8 bit resolution), not %d", + duty)); + } + common_hal_nativeio_pwmout_set_duty_cycle(self, duty); + return mp_const_none; +} +MP_DEFINE_CONST_FUN_OBJ_2(nativeio_pwmout_set_duty_cycle_obj, nativeio_pwmout_obj_set_duty_cycle); + +mp_obj_property_t nativeio_pwmout_duty_cycle_obj = { + .base.type = &mp_type_property, + .proxy = {(mp_obj_t)&nativeio_pwmout_get_duty_cycle_obj, + (mp_obj_t)&nativeio_pwmout_set_duty_cycle_obj, + (mp_obj_t)&mp_const_none_obj}, +}; + +STATIC const mp_rom_map_elem_t nativeio_pwmout_locals_dict_table[] = { + // Methods + { MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&nativeio_pwmout_deinit_obj) }, + + // Properties + { MP_ROM_QSTR(MP_QSTR_duty_cycle), MP_ROM_PTR(&nativeio_pwmout_duty_cycle_obj) }, + // TODO(tannewt): Add frequency. + // TODO(tannewt): Add enabled to determine whether the signal is output + // without giving up the resources. Useful for IR output. +}; +STATIC MP_DEFINE_CONST_DICT(nativeio_pwmout_locals_dict, nativeio_pwmout_locals_dict_table); + +const mp_obj_type_t nativeio_pwmout_type = { + { &mp_type_type }, + .name = MP_QSTR_PWMOut, + .make_new = nativeio_pwmout_make_new, + .locals_dict = (mp_obj_dict_t*)&nativeio_pwmout_locals_dict, +}; diff --git a/shared-bindings/nativeio/PWMOut.h b/shared-bindings/nativeio/PWMOut.h new file mode 100644 index 000000000..0be553315 --- /dev/null +++ b/shared-bindings/nativeio/PWMOut.h @@ -0,0 +1,40 @@ +/* + * This file is part of the Micro Python project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2013, 2014 Damien P. George + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO_PWMOUT_H__ +#define __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO_PWMOUT_H__ + +#include "common-hal/microcontroller/types.h" +#include "common-hal/nativeio/types.h" + +extern const mp_obj_type_t nativeio_pwmout_type; + +extern void common_hal_nativeio_pwmout_construct(nativeio_pwmout_obj_t* self, const mcu_pin_obj_t* pin, uint16_t duty); +extern void common_hal_nativeio_pwmout_deinit(nativeio_pwmout_obj_t* self); +extern void common_hal_nativeio_pwmout_set_duty_cycle(nativeio_pwmout_obj_t* self, uint16_t duty); +extern uint16_t common_hal_nativeio_pwmout_get_duty_cycle(nativeio_pwmout_obj_t* self); + +#endif // __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO_PWMOUT_H__ diff --git a/shared-bindings/nativeio/SPI.c b/shared-bindings/nativeio/SPI.c new file mode 100644 index 000000000..f17814ffa --- /dev/null +++ b/shared-bindings/nativeio/SPI.c @@ -0,0 +1,167 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2016 Scott Shawcroft + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +// This file contains all of the Python API definitions for the +// nativeio.SPI class. + +#include <string.h> + +#include "shared-bindings/nativeio/SPI.h" + +#include "py/runtime.h" + +//| .. currentmodule:: nativeio +//| +//| :class:`SPI` -- a 3-4 wire serial protocol +//| ----------------------------------------------- +//| +//| SPI is a serial protocol that has exclusive pins for data in and out of the +//| master. It is typically faster than :py:class:`~nativeio.I2C` because a +//| separate pin is used to control the active slave rather than a transitted +//| address. This class only manages three of the four SPI lines: `!clock`, +//| `!MOSI`, `!MISO`. Its up to the client to manage the appropriate slave +//| select line. (This is common because multiple slaves can share the `!clock`, +//| `!MOSI` and `!MISO` lines and therefore the hardware.) +//| +//| .. class:: SPI(clock, MOSI, MISO, baudrate=1000000) +//| +//| Construct an SPI object on the given pins. +//| +//| :param ~microcontroller.Pin clock: the pin to use for the clock. +//| :param ~microcontroller.Pin MOSI: the Master Out Slave In pin. +//| :param ~microcontroller.Pin MISO: the Master In Slave Out pin. +//| :param int baudrate: is the SCK clock rate. +//| + +// TODO(tannewt): Support LSB SPI. +// TODO(tannewt): Support phase, polarity and bit order. +STATIC mp_obj_t nativeio_spi_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *pos_args) { + mp_arg_check_num(n_args, n_kw, 0, MP_OBJ_FUN_ARGS_MAX, true); + nativeio_spi_obj_t *self = m_new_obj(nativeio_spi_obj_t); + self->base.type = &nativeio_spi_type; + mp_map_t kw_args; + mp_map_init_fixed_table(&kw_args, n_kw, pos_args + n_args); + enum { ARG_clock, ARG_MOSI, ARG_MISO, ARG_baudrate, ARG_polarity, ARG_phase, ARG_bits, ARG_firstbit }; + static const mp_arg_t allowed_args[] = { + { MP_QSTR_clock, MP_ARG_REQUIRED | MP_ARG_OBJ }, + { MP_QSTR_MOSI, MP_ARG_REQUIRED | MP_ARG_OBJ }, + { MP_QSTR_MISO, MP_ARG_REQUIRED | MP_ARG_OBJ }, + { MP_QSTR_baudrate, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 100000} }, + { MP_QSTR_polarity, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 400000} }, + { MP_QSTR_phase, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 400000} }, + { MP_QSTR_bits, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 8} }, + }; + mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; + mp_arg_parse_all(n_args, pos_args, &kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); + const mcu_pin_obj_t* clock = MP_OBJ_TO_PTR(args[ARG_clock].u_obj); + const mcu_pin_obj_t* mosi = MP_OBJ_TO_PTR(args[ARG_MOSI].u_obj); + const mcu_pin_obj_t* miso = MP_OBJ_TO_PTR(args[ARG_MISO].u_obj); + common_hal_nativeio_spi_construct(self, clock, mosi, miso, args[ARG_baudrate].u_int); + return (mp_obj_t)self; +} + +//| .. method:: SPI.deinit() +//| +//| Turn off the SPI bus. +//| +STATIC mp_obj_t nativeio_spi_obj_deinit(mp_obj_t self_in) { + nativeio_spi_obj_t *self = MP_OBJ_TO_PTR(self_in); + common_hal_nativeio_spi_deinit(self); + return mp_const_none; +} +MP_DEFINE_CONST_FUN_OBJ_1(nativeio_spi_deinit_obj, nativeio_spi_obj_deinit); + +//| .. method:: SPI.__enter__() +//| +//| No-op used by Context Managers. +//| +STATIC mp_obj_t nativeio_spi_obj___enter__(mp_obj_t self_in) { + return self_in; +} +MP_DEFINE_CONST_FUN_OBJ_1(nativeio_spi___enter___obj, nativeio_spi_obj___enter__); + +//| .. method:: SPI.__exit__() +//| +//| Automatically deinitializes the hardware when exiting a context. +//| +STATIC mp_obj_t nativeio_spi_obj___exit__(size_t n_args, const mp_obj_t *args) { + (void)n_args; + common_hal_nativeio_spi_deinit(args[0]); + return mp_const_none; +} +STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(nativeio_spi_obj___exit___obj, 4, 4, nativeio_spi_obj___exit__); + +//| .. method:: SPI.write(buf) +//| +//| Write the data contained in `!buf`. +//| Returns the number of bytes written. +//| +STATIC mp_obj_t nativeio_spi_write(mp_obj_t self_in, mp_obj_t wr_buf) { + mp_buffer_info_t src; + mp_get_buffer_raise(wr_buf, &src, MP_BUFFER_READ); + nativeio_spi_obj_t *self = MP_OBJ_TO_PTR(self_in); + bool ok = common_hal_nativeio_spi_write(self, src.buf, src.len); + if (!ok) { + nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "SPI bus error")); + } + return mp_const_none; +} +MP_DEFINE_CONST_FUN_OBJ_2(nativeio_spi_write_obj, nativeio_spi_write); + + +//| .. method:: SPI.readinto(buf) +//| +//| Read into the buffer specified by `!buf` while writing the data +//| specified by `!write`. +//| Return the number of bytes read. +//| +STATIC mp_obj_t nativeio_spi_readinto(size_t n_args, const mp_obj_t *args) { + mp_buffer_info_t bufinfo; + mp_get_buffer_raise(args[1], &bufinfo, MP_BUFFER_WRITE); + bool ok = common_hal_nativeio_spi_read(args[0], bufinfo.buf, bufinfo.len); + if (!ok) { + nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "SPI bus error")); + } + return mp_const_none; +} +MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(nativeio_spi_readinto_obj, 2, 2, nativeio_spi_readinto); + +STATIC const mp_rom_map_elem_t nativeio_spi_locals_dict_table[] = { + { MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&nativeio_spi_deinit_obj) }, + { MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&nativeio_spi___enter___obj) }, + { MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&nativeio_spi_obj___exit___obj) }, + + { MP_ROM_QSTR(MP_QSTR_readinto), MP_ROM_PTR(&nativeio_spi_readinto_obj) }, + { MP_ROM_QSTR(MP_QSTR_write), MP_ROM_PTR(&nativeio_spi_write_obj) }, +}; +STATIC MP_DEFINE_CONST_DICT(nativeio_spi_locals_dict, nativeio_spi_locals_dict_table); + +const mp_obj_type_t nativeio_spi_type = { + { &mp_type_type }, + .name = MP_QSTR_SPI, + .make_new = nativeio_spi_make_new, + .locals_dict = (mp_obj_dict_t*)&nativeio_spi_locals_dict, +}; diff --git a/shared-bindings/nativeio/SPI.h b/shared-bindings/nativeio/SPI.h new file mode 100644 index 000000000..ca1a8c5d4 --- /dev/null +++ b/shared-bindings/nativeio/SPI.h @@ -0,0 +1,51 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2016 Scott Shawcroft + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO_SPI_H__ +#define __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO_SPI_H__ + +#include "py/obj.h" + +#include "common-hal/microcontroller/types.h" +#include "common-hal/nativeio/types.h" + +// Type object used in Python. Should be shared between ports. +extern const mp_obj_type_t nativeio_spi_type; + +// Construct an underlying SPI object. +extern void common_hal_nativeio_spi_construct(nativeio_spi_obj_t *self, + const mcu_pin_obj_t * clock, const mcu_pin_obj_t * mosi, + const mcu_pin_obj_t * miso, uint32_t baudrate); + +extern void common_hal_nativeio_spi_deinit(nativeio_spi_obj_t *self); + +// Writes out the given data. +extern bool common_hal_nativeio_spi_write(nativeio_spi_obj_t *self, const uint8_t *data, size_t len); + +// Reads in len bytes while outputting zeroes. +extern bool common_hal_nativeio_spi_read(nativeio_spi_obj_t *self, uint8_t *data, size_t len); + +#endif // __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO_SPI_H__ diff --git a/shared-bindings/nativeio/__init__.c b/shared-bindings/nativeio/__init__.c new file mode 100644 index 000000000..8f9819778 --- /dev/null +++ b/shared-bindings/nativeio/__init__.c @@ -0,0 +1,122 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2016 Scott Shawcroft + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +// nativeio is the HAL for low-level, hardware accelerated classes. It +// is not meant to simplify APIs, its only meant to unify them so that other +// libraries do not require port specific logic. + +#include <stdint.h> + +#include "py/obj.h" +#include "py/runtime.h" + +#include "shared-bindings/microcontroller/Pin.h" +#include "shared-bindings/nativeio/__init__.h" +#include "shared-bindings/nativeio/AnalogIn.h" +#include "shared-bindings/nativeio/AnalogOut.h" +#include "shared-bindings/nativeio/DigitalInOut.h" +#include "shared-bindings/nativeio/I2C.h" +#include "shared-bindings/nativeio/PWMOut.h" +#include "shared-bindings/nativeio/SPI.h" +#include "common-hal/nativeio/types.h" +#include "shared-bindings/nativeio/__init__.h" + +#include "py/runtime.h" + +//| :mod:`nativeio` --- Hardware accelerated behavior +//| ================================================= +//| +//| .. module:: nativeio +//| :synopsis: Hardware accelerated behavior +//| :platform: SAMD21 +//| +//| The `nativeio` module contains classes to provide access to IO accelerated +//| by hardware on the onboard microcontroller. The classes are meant to align +//| with commonly hardware accelerated IO and not necessarily match up with +//| microcontroller structure (because it varies). +//| +//| If the microcontroller doesn't not support the behavior in a hardware +//| accelerated fashion it throws a NotImplementedError on construction. Use +//| `bitbangio` module instead which only depends on +//| :py:class:`~nativeio.DigitalInOut` and is shared across hardware ports. +//| +//| Libraries +//| +//| .. toctree:: +//| :maxdepth: 3 +//| +//| AnalogIn +//| AnalogOut +//| DigitalInOut +//| I2C +//| PWMOut +//| SPI +//| +//| All libraries change hardware state and should be deinitialized when they +//| are no longer needed. To do so, either call :py:meth:`!deinit` or use a +//| context manager. +//| +//| For example:: +//| +//| import nativeio +//| from board import * +//| +//| with nativeio.I2C(SCL, SDA) as i2c: +//| i2c.scan() +//| +//| This example will initialize the the device, run +//| :py:meth:`~nativeio.I2C.scan` and then :py:meth:`~nativeio.I2C.deinit` the +//| hardware. +//| +//| Here is blinky:: +//| +//| import nativeio +//| from board import * +//| import time +//| +//| with nativeio.DigitalInOut(D13) as led: +//| led.value = True +//| time.sleep(0.1) +//| led.value = False +//| time.sleep(0.1) +//| + +STATIC const mp_rom_map_elem_t nativeio_module_globals_table[] = { + { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_nativeio) }, + { MP_ROM_QSTR(MP_QSTR_AnalogIn), MP_ROM_PTR(&nativeio_analogin_type) }, + { MP_ROM_QSTR(MP_QSTR_AnalogOut), MP_ROM_PTR(&nativeio_analogout_type) }, + { MP_ROM_QSTR(MP_QSTR_DigitalInOut), MP_ROM_PTR(&nativeio_digitalinout_type) }, + { MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&nativeio_i2c_type) }, + { MP_ROM_QSTR(MP_QSTR_PWMOut), MP_ROM_PTR(&nativeio_pwmout_type) }, + { MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&nativeio_spi_type) }, +}; + +STATIC MP_DEFINE_CONST_DICT(nativeio_module_globals, nativeio_module_globals_table); + +const mp_obj_module_t nativeio_module = { + .base = { &mp_type_module }, + .globals = (mp_obj_dict_t*)&nativeio_module_globals, +}; diff --git a/shared-bindings/nativeio/__init__.h b/shared-bindings/nativeio/__init__.h new file mode 100644 index 000000000..7f4c01e05 --- /dev/null +++ b/shared-bindings/nativeio/__init__.h @@ -0,0 +1,34 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2016 Scott Shawcroft + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO___INIT___H__ +#define __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO___INIT___H__ + +#include "py/obj.h" + +// Nothing now. + +#endif // __MICROPY_INCLUDED_SHARED_BINDINGS_NATIVEIO___INIT___H__ |