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extmod/machine_i2s: Factor ports' I2S Python bindings to common code.
This factors the basic top-level I2S class code from the ports into extmod/machine_i2s.c: - I2S class definition and method table. - The init and deinit method wrappers. - The make_new code. Further factoring will follow. Signed-off-by: Damien George <damien@micropython.org>
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| /* | ||
| * This file is part of the MicroPython project, http://micropython.org/ | ||
| * | ||
| * The MIT License (MIT) | ||
| * | ||
| * Copyright (c) 2021 Mike Teachman | ||
| * Copyright (c) 2023 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. | ||
| */ | ||
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| #include "py/runtime.h" | ||
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| #if MICROPY_PY_MACHINE_I2S | ||
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| #include "extmod/modmachine.h" | ||
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| // The port must provide implementations of these low-level I2S functions. | ||
| STATIC void mp_machine_i2s_init_helper(machine_i2s_obj_t *self, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args); | ||
| STATIC machine_i2s_obj_t *mp_machine_i2s_make_new_instance(mp_int_t i2s_id); | ||
| STATIC void mp_machine_i2s_deinit(machine_i2s_obj_t *self); | ||
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| // The port provides implementations of the above in this file. | ||
| #include MICROPY_PY_MACHINE_I2S_INCLUDEFILE | ||
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| STATIC mp_obj_t machine_i2s_make_new(const mp_obj_type_t *type, size_t n_pos_args, size_t n_kw_args, const mp_obj_t *args) { | ||
| mp_arg_check_num(n_pos_args, n_kw_args, 1, MP_OBJ_FUN_ARGS_MAX, true); | ||
| mp_int_t i2s_id = mp_obj_get_int(args[0]); | ||
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| machine_i2s_obj_t *self = mp_machine_i2s_make_new_instance(i2s_id); | ||
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| mp_map_t kw_args; | ||
| mp_map_init_fixed_table(&kw_args, n_kw_args, args + n_pos_args); | ||
| mp_machine_i2s_init_helper(self, n_pos_args - 1, args + 1, &kw_args); | ||
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| return MP_OBJ_FROM_PTR(self); | ||
| } | ||
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| // I2S.init(...) | ||
| STATIC mp_obj_t machine_i2s_init(size_t n_pos_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { | ||
| machine_i2s_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]); | ||
| mp_machine_i2s_deinit(self); | ||
| mp_machine_i2s_init_helper(self, n_pos_args - 1, pos_args + 1, kw_args); | ||
| return mp_const_none; | ||
| } | ||
| STATIC MP_DEFINE_CONST_FUN_OBJ_KW(machine_i2s_init_obj, 1, machine_i2s_init); | ||
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| // I2S.deinit() | ||
| STATIC mp_obj_t machine_i2s_deinit(mp_obj_t self_in) { | ||
| machine_i2s_obj_t *self = MP_OBJ_TO_PTR(self_in); | ||
| mp_machine_i2s_deinit(self); | ||
| return mp_const_none; | ||
| } | ||
| STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_i2s_deinit_obj, machine_i2s_deinit); | ||
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| STATIC const mp_rom_map_elem_t machine_i2s_locals_dict_table[] = { | ||
| // Methods | ||
| { MP_ROM_QSTR(MP_QSTR_init), MP_ROM_PTR(&machine_i2s_init_obj) }, | ||
| { MP_ROM_QSTR(MP_QSTR_readinto), MP_ROM_PTR(&mp_stream_readinto_obj) }, | ||
| { MP_ROM_QSTR(MP_QSTR_write), MP_ROM_PTR(&mp_stream_write_obj) }, | ||
| { MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&machine_i2s_deinit_obj) }, | ||
| { MP_ROM_QSTR(MP_QSTR_irq), MP_ROM_PTR(&machine_i2s_irq_obj) }, | ||
| #if MICROPY_PY_MACHINE_I2S_FINALISER | ||
| { MP_ROM_QSTR(MP_QSTR___del__), MP_ROM_PTR(&machine_i2s_deinit_obj) }, | ||
| #endif | ||
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| // Static method | ||
| { MP_ROM_QSTR(MP_QSTR_shift), MP_ROM_PTR(&machine_i2s_shift_obj) }, | ||
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| // Constants | ||
| { MP_ROM_QSTR(MP_QSTR_RX), MP_ROM_INT(MICROPY_PY_MACHINE_I2S_CONSTANT_RX) }, | ||
| { MP_ROM_QSTR(MP_QSTR_TX), MP_ROM_INT(MICROPY_PY_MACHINE_I2S_CONSTANT_TX) }, | ||
| { MP_ROM_QSTR(MP_QSTR_STEREO), MP_ROM_INT(STEREO) }, | ||
| { MP_ROM_QSTR(MP_QSTR_MONO), MP_ROM_INT(MONO) }, | ||
| }; | ||
| MP_DEFINE_CONST_DICT(machine_i2s_locals_dict, machine_i2s_locals_dict_table); | ||
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| STATIC const mp_stream_p_t i2s_stream_p = { | ||
| .read = machine_i2s_stream_read, | ||
| .write = machine_i2s_stream_write, | ||
| .ioctl = machine_i2s_ioctl, | ||
| .is_text = false, | ||
| }; | ||
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| MP_DEFINE_CONST_OBJ_TYPE( | ||
| machine_i2s_type, | ||
| MP_QSTR_I2S, | ||
| MP_TYPE_FLAG_ITER_IS_STREAM, | ||
| make_new, machine_i2s_make_new, | ||
| print, machine_i2s_print, | ||
| protocol, &i2s_stream_p, | ||
| locals_dict, &machine_i2s_locals_dict | ||
| ); | ||
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| #endif // MICROPY_PY_MACHINE_I2S |
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