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@ -32,6 +32,21 @@ |
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#include "extmod/modmachine.h" |
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// Arguments for I2S() constructor and I2S.init().
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enum { |
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ARG_sck, |
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ARG_ws, |
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ARG_sd, |
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#if MICROPY_PY_MACHINE_I2S_MCK |
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ARG_mck, |
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#endif |
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ARG_mode, |
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ARG_bits, |
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ARG_format, |
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ARG_rate, |
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ARG_ibuf, |
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}; |
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#if MICROPY_PY_MACHINE_I2S_RING_BUF |
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typedef struct _ring_buf_t { |
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@ -58,7 +73,7 @@ STATIC void copy_appbuf_to_ringbuf_non_blocking(machine_i2s_obj_t *self); |
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#endif // MICROPY_PY_MACHINE_I2S_RING_BUF
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// The port must provide implementations of these low-level I2S functions.
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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); |
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STATIC void mp_machine_i2s_init_helper(machine_i2s_obj_t *self, mp_arg_val_t *args); |
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STATIC machine_i2s_obj_t *mp_machine_i2s_make_new_instance(mp_int_t i2s_id); |
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STATIC void mp_machine_i2s_deinit(machine_i2s_obj_t *self); |
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STATIC void mp_machine_i2s_irq_update(machine_i2s_obj_t *self); |
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@ -280,6 +295,27 @@ STATIC void copy_appbuf_to_ringbuf_non_blocking(machine_i2s_obj_t *self) { |
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#endif // MICROPY_PY_MACHINE_I2S_RING_BUF
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MP_NOINLINE STATIC void machine_i2s_init_helper(machine_i2s_obj_t *self, size_t n_pos_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { |
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static const mp_arg_t allowed_args[] = { |
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{ MP_QSTR_sck, MP_ARG_KW_ONLY | MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} }, |
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{ MP_QSTR_ws, MP_ARG_KW_ONLY | MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} }, |
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{ MP_QSTR_sd, MP_ARG_KW_ONLY | MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} }, |
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#if MICROPY_PY_MACHINE_I2S_MCK |
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{ MP_QSTR_mck, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} }, |
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#endif |
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{ MP_QSTR_mode, MP_ARG_KW_ONLY | MP_ARG_REQUIRED | MP_ARG_INT, {.u_int = -1} }, |
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{ MP_QSTR_bits, MP_ARG_KW_ONLY | MP_ARG_REQUIRED | MP_ARG_INT, {.u_int = -1} }, |
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{ MP_QSTR_format, MP_ARG_KW_ONLY | MP_ARG_REQUIRED | MP_ARG_INT, {.u_int = -1} }, |
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{ MP_QSTR_rate, MP_ARG_KW_ONLY | MP_ARG_REQUIRED | MP_ARG_INT, {.u_int = -1} }, |
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{ MP_QSTR_ibuf, MP_ARG_KW_ONLY | MP_ARG_REQUIRED | MP_ARG_INT, {.u_int = -1} }, |
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}; |
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; |
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mp_arg_parse_all(n_pos_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); |
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mp_machine_i2s_init_helper(self, args); |
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} |
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STATIC void machine_i2s_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) { |
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machine_i2s_obj_t *self = MP_OBJ_TO_PTR(self_in); |
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mp_printf(print, "I2S(id=%u,\n" |
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@ -313,7 +349,7 @@ STATIC mp_obj_t machine_i2s_make_new(const mp_obj_type_t *type, size_t n_pos_arg |
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mp_map_t kw_args; |
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mp_map_init_fixed_table(&kw_args, n_kw_args, args + n_pos_args); |
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mp_machine_i2s_init_helper(self, n_pos_args - 1, args + 1, &kw_args); |
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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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} |
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@ -322,7 +358,7 @@ STATIC mp_obj_t machine_i2s_make_new(const mp_obj_type_t *type, size_t n_pos_arg |
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STATIC mp_obj_t machine_i2s_init(size_t n_pos_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { |
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machine_i2s_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]); |
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mp_machine_i2s_deinit(self); |
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mp_machine_i2s_init_helper(self, n_pos_args - 1, pos_args + 1, kw_args); |
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machine_i2s_init_helper(self, n_pos_args - 1, pos_args + 1, kw_args); |
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return mp_const_none; |
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} |
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STATIC MP_DEFINE_CONST_FUN_OBJ_KW(machine_i2s_init_obj, 1, machine_i2s_init); |
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