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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.
*/
#include "py/runtime.h"
#if MICROPY_PY_MACHINE_I2S
#include "extmod/modmachine.h"
// 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);
// The port provides implementations of the above in this file.
#include MICROPY_PY_MACHINE_I2S_INCLUDEFILE
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]);
machine_i2s_obj_t *self = mp_machine_i2s_make_new_instance(i2s_id);
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);
return MP_OBJ_FROM_PTR(self);
}
// 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);
// 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);
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
// Static method
{ MP_ROM_QSTR(MP_QSTR_shift), MP_ROM_PTR(&machine_i2s_shift_obj) },
// 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);
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,
};
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
);
#endif // MICROPY_PY_MACHINE_I2S
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