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samd/machine_led: Optimise size of the machine.LED class. 

By reducing the methods to on(), off(), toggle() and call, and using the
method implementation of the machine.Pin class.

The code size reduction is 756 byte.
This commit is contained in:
robert-hh 2022-06-06 13:35:16 +02:00 committed by Damien George
parent 6e2dff6bae
commit aa2d746ef4
2 changed files with 13 additions and 101 deletions
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108
ports/samd/machine_led.c
View File

@ -32,37 +32,16 @@
#include "modmachine.h"
#include "pins.h"
// ASF4 (MCU package specific pin defs in 'boards')
#include "hal_gpio.h"
extern mp_obj_t machine_pin_low_obj;
extern mp_obj_t machine_pin_high_obj;
extern mp_obj_t machine_pin_toggle_obj;
extern mp_obj_t machine_pin_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args);
STATIC void machine_led_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
machine_led_obj_t *self = self_in;
mp_printf(print, "LED(%u)", self->id);
}
// LED.init(mode, *, value=None)
STATIC mp_obj_t machine_led_obj_init_helper(const machine_led_obj_t *self, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum { ARG_mode, ARG_value };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_mode, MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
{ MP_QSTR_value, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
};
// parse args
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);
// set initial value (do this before configuring mode/pull)
if (args[ARG_value].u_obj != mp_const_none) {
gpio_set_pin_level(self->id, mp_obj_is_true(args[ARG_value].u_obj));
}
// configure mode
gpio_set_pin_direction(self->id, GPIO_DIRECTION_OUT);
return mp_const_none;
}
// constructor(id, ...)
mp_obj_t mp_led_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);
@ -73,90 +52,23 @@ mp_obj_t mp_led_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw,
if (0 <= wanted_led && wanted_led < MP_ARRAY_SIZE(machine_led_obj)) {
self = (machine_led_obj_t *)&machine_led_obj[wanted_led];
}
// the array could be padded with 'nulls' (see other Ports).
// Will also error if the asked for LED (index) is greater than the array row size.
if (self == NULL || self->base.type == NULL) {
mp_raise_ValueError(MP_ERROR_TEXT("invalid LED"));
}
if (n_args > 1 || n_kw > 0) {
// mode given, so configure this GPIO
mp_map_t kw_args;
mp_map_init_fixed_table(&kw_args, n_kw, args + n_args);
machine_led_obj_init_helper(self, n_args - 1, args + 1, &kw_args);
}
mp_hal_pin_output(self->id);
mp_hal_pin_low(self->id);
return MP_OBJ_FROM_PTR(self);
}
// fast method for getting/setting pin value
STATIC mp_obj_t machine_led_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
mp_arg_check_num(n_args, n_kw, 0, 1, false);
machine_led_obj_t *self = self_in;
if (n_args == 0) {
// get pin
return MP_OBJ_NEW_SMALL_INT(gpio_get_pin_level(self->id));
} else {
// set pin
bool value = mp_obj_is_true(args[0]);
gpio_set_pin_level(self->id, value);
return mp_const_none;
}
}
// pin.init(mode)
STATIC mp_obj_t machine_led_obj_init(size_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
return machine_led_obj_init_helper(args[0], n_args - 1, args + 1, kw_args);
}
MP_DEFINE_CONST_FUN_OBJ_KW(machine_led_init_obj, 1, machine_led_obj_init);
// pin.value([value])
STATIC mp_obj_t machine_led_value(size_t n_args, const mp_obj_t *args) {
return machine_led_call(args[0], n_args - 1, 0, args + 1);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_led_value_obj, 1, 2, machine_led_value);
// pin.low()
STATIC mp_obj_t machine_led_low(mp_obj_t self_in) {
machine_led_obj_t *self = MP_OBJ_TO_PTR(self_in);
gpio_set_pin_direction(self->id, GPIO_DIRECTION_OUT);
gpio_set_pin_level(self->id, false);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_led_low_obj, machine_led_low);
// pin.high()
STATIC mp_obj_t machine_led_high(mp_obj_t self_in) {
machine_led_obj_t *self = MP_OBJ_TO_PTR(self_in);
gpio_set_pin_direction(self->id, GPIO_DIRECTION_OUT);
gpio_set_pin_level(self->id, true);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_led_high_obj, machine_led_high);
// pin.toggle()
STATIC mp_obj_t machine_led_toggle(mp_obj_t self_in) {
machine_led_obj_t *self = MP_OBJ_TO_PTR(self_in);
gpio_set_pin_direction(self->id, GPIO_DIRECTION_OUT);
gpio_toggle_pin_level(self->id);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_led_toggle_obj, machine_led_toggle);
STATIC const mp_rom_map_elem_t machine_led_locals_dict_table[] = {
// instance methods
{ MP_ROM_QSTR(MP_QSTR_init), MP_ROM_PTR(&machine_led_init_obj) },
{ MP_ROM_QSTR(MP_QSTR_value), MP_ROM_PTR(&machine_led_value_obj) },
{ MP_ROM_QSTR(MP_QSTR_low), MP_ROM_PTR(&machine_led_low_obj) },
{ MP_ROM_QSTR(MP_QSTR_high), MP_ROM_PTR(&machine_led_high_obj) },
{ MP_ROM_QSTR(MP_QSTR_off), MP_ROM_PTR(&machine_led_low_obj) },
{ MP_ROM_QSTR(MP_QSTR_on), MP_ROM_PTR(&machine_led_high_obj) },
{ MP_ROM_QSTR(MP_QSTR_toggle), MP_ROM_PTR(&machine_led_toggle_obj) },
{ MP_ROM_QSTR(MP_QSTR_off), MP_ROM_PTR(&machine_pin_low_obj) },
{ MP_ROM_QSTR(MP_QSTR_on), MP_ROM_PTR(&machine_pin_high_obj) },
{ MP_ROM_QSTR(MP_QSTR_toggle), MP_ROM_PTR(&machine_pin_toggle_obj) },
};
STATIC MP_DEFINE_CONST_DICT(machine_led_locals_dict, machine_led_locals_dict_table);
@ -166,6 +78,6 @@ MP_DEFINE_CONST_OBJ_TYPE(
MP_TYPE_FLAG_NONE,
make_new, mp_led_make_new,
print, machine_led_print,
call, machine_led_call,
call, machine_pin_call,
locals_dict, &machine_led_locals_dict
);

6
ports/samd/machine_pin.c
View File

@ -220,7 +220,7 @@ STATIC mp_obj_t machine_pin_low(mp_obj_t self_in) {
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_pin_low_obj, machine_pin_low);
MP_DEFINE_CONST_FUN_OBJ_1(machine_pin_low_obj, machine_pin_low);
// Pin.high() Totem-pole (push-pull)
STATIC mp_obj_t machine_pin_high(mp_obj_t self_in) {
@ -232,7 +232,7 @@ STATIC mp_obj_t machine_pin_high(mp_obj_t self_in) {
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_pin_high_obj, machine_pin_high);
MP_DEFINE_CONST_FUN_OBJ_1(machine_pin_high_obj, machine_pin_high);
// Pin.toggle(). Only TOGGLE pins set as OUTPUT.
STATIC mp_obj_t machine_pin_toggle(mp_obj_t self_in) {
@ -254,7 +254,7 @@ STATIC mp_obj_t machine_pin_toggle(mp_obj_t self_in) {
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_pin_toggle_obj, machine_pin_toggle);
MP_DEFINE_CONST_FUN_OBJ_1(machine_pin_toggle_obj, machine_pin_toggle);
// Pin.drive(). Normal (0) is 2mA, High (1) allows 8mA.
STATIC mp_obj_t machine_pin_drive(size_t n_args, const mp_obj_t *args) {