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stmhal: Add pyb.Pin.init method to re-init GPIO pin mode.

This commit is contained in:
Damien George 2014-04-19 02:17:57 +01:00
parent 6e44381cce
commit 3d19137442
2 changed files with 39 additions and 23 deletions
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61
stmhal/pin.c
View File

@ -157,6 +157,8 @@ STATIC void pin_print(void (*print)(void *env, const char *fmt, ...), void *env,
print(env, "<Pin %s>", self->name);
}
STATIC mp_obj_t pin_obj_init(uint n_args, mp_obj_t *args);
// Pin constructor
STATIC mp_obj_t pin_make_new(mp_obj_t self_in, uint n_args, uint n_kw, const mp_obj_t *args) {
mp_check_nargs(n_args, 1, 3, n_kw, false);
@ -166,30 +168,11 @@ STATIC mp_obj_t pin_make_new(mp_obj_t self_in, uint n_args, uint n_kw, const mp_
if (n_args >= 2) {
// pin mode given, so configure this GPIO
// get io mode
uint mode = mp_obj_get_int(args[1]);
if (!IS_GPIO_MODE(mode)) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "invalid pin mode: %d", mode));
mp_obj_t args2[3] = {(mp_obj_t)pin, args2[1], MP_OBJ_NULL};
if (n_args == 3) {
args2[2] = args[2];
}
// get pull mode
uint pull = GPIO_NOPULL;
if (n_args >= 3) {
pull = mp_obj_get_int(args[2]);
if (!IS_GPIO_PULL(pull)) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "invalid pin pull: %d", pull));
}
}
// configure the GPIO as requested
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.Pin = pin->pin_mask;
GPIO_InitStructure.Mode = mode;
GPIO_InitStructure.Pull = pull;
GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
GPIO_InitStructure.Alternate = 0;
HAL_GPIO_Init(pin->gpio, &GPIO_InitStructure);
pin_obj_init(n_args, args2);
}
return (mp_obj_t)pin;
@ -228,6 +211,37 @@ STATIC mp_obj_t pin_debug(uint n_args, mp_obj_t *args) {
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pin_debug_fun_obj, 1, 2, pin_debug);
STATIC MP_DEFINE_CONST_CLASSMETHOD_OBJ(pin_debug_obj, (mp_obj_t)&pin_debug_fun_obj);
STATIC mp_obj_t pin_obj_init(uint n_args, mp_obj_t *args) {
pin_obj_t *self = args[0];
// get io mode
uint mode = mp_obj_get_int(args[1]);
if (!IS_GPIO_MODE(mode)) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "invalid pin mode: %d", mode));
}
// get pull mode
uint pull = GPIO_NOPULL;
if (n_args >= 3) {
pull = mp_obj_get_int(args[2]);
if (!IS_GPIO_PULL(pull)) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "invalid pin pull: %d", pull));
}
}
// configure the GPIO as requested
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.Pin = self->pin_mask;
GPIO_InitStructure.Mode = mode;
GPIO_InitStructure.Pull = pull;
GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
GPIO_InitStructure.Alternate = 0;
HAL_GPIO_Init(self->gpio, &GPIO_InitStructure);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pin_init_obj, 2, 3, pin_obj_init);
STATIC mp_obj_t pin_value(uint n_args, mp_obj_t *args) {
pin_obj_t *self = args[0];
if (n_args == 1) {
@ -279,6 +293,7 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_pin_obj, pin_pin);
STATIC const mp_map_elem_t pin_locals_dict_table[] = {
// instance methods
{ MP_OBJ_NEW_QSTR(MP_QSTR_init), (mp_obj_t)&pin_init_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_value), (mp_obj_t)&pin_value_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_low), (mp_obj_t)&pin_low_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_high), (mp_obj_t)&pin_high_obj },

1
stmhal/qstrdefsport.h
View File

@ -50,6 +50,7 @@ Q(datetime)
Q(Pin)
Q(PinAF)
Q(PinNamed)
Q(init)
Q(value)
Q(low)
Q(high)