/******************************************************************************
DEFINE PRIVATE FUNCTIONS
******************************************************************************/
STATIC pin_obj_t *pin_find_named_pin(const mp_obj_dict_t *named_pins, mp_obj_t name) {
mp_map_t *named_map = mp_obj_dict_get_map((mp_obj_t)named_pins);
mp_map_elem_t *named_elem = mp_map_lookup(named_map, name, MP_MAP_LOOKUP);
if (named_elem != NULL && named_elem->value != NULL) {
return named_elem->value;
}
return NULL;
}
pin_obj_t *pin_find_pin(const mp_obj_dict_t *named_pins, uint pin_num) {
mp_map_t *named_map = mp_obj_dict_get_map((mp_obj_t)named_pins);
for (uint i = 0; i < named_map->used; i++) {
if (((pin_obj_t *)named_map->table[i].value)->pin_num == pin_num) {
return named_map->table[i].value;
}
}
return NULL;
}
STATIC void pyb_sleep_iopark (bool hibernate) {
mp_map_t *named_map = mp_obj_dict_get_map((mp_obj_t)&pin_board_pins_locals_dict);
for (uint i = 0; i < named_map->used; i++) {
pin_obj_t * pin = (pin_obj_t *)named_map->table[i].value;
switch (pin->pin_num) {
#ifdef DEBUG
// skip the JTAG pins
case PIN_16:
case PIN_17:
case PIN_19:
case PIN_20:
break;
#endif
default:
// enable a weak pull-up if the pin is unused
if (!pin->used) {
MAP_PinConfigSet(pin->pin_num, pin->strength, PIN_TYPE_STD_PU);
}
if (hibernate) {
// make it an input
MAP_PinDirModeSet(pin->pin_num, PIN_DIR_MODE_IN);
}
break;
}
}
// park the sflash pins
HWREG(0x4402E0E8) &= ~(0x3 << 8);
HWREG(0x4402E0E8) |= (0x2 << 8);
HWREG(0x4402E0EC) &= ~(0x3 << 8);
HWREG(0x4402E0EC) |= (0x2 << 8);
HWREG(0x4402E0F0) &= ~(0x3 << 8);
HWREG(0x4402E0F0) |= (0x2 << 8);
HWREG(0x4402E0F4) &= ~(0x3 << 8);
HWREG(0x4402E0F4) |= (0x1 << 8);
// if the board has antenna diversity, only park the antenna
// selection pins when going into hibernation
#if MICROPY_HW_ANTENNA_DIVERSITY
if (hibernate) {
#endif
// park the antenna selection pins
// (tri-stated with pull down enabled)
HWREG(0x4402E108) = 0x00000E61;
HWREG(0x4402E10C) = 0x00000E61;
#if MICROPY_HW_ANTENNA_DIVERSITY
} else {
// park the antenna selection pins
// (tri-stated without changing the pull up/down resistors)
HWREG(0x4402E108) &= ~0x000000FF;
HWREG(0x4402E108) |= 0x00000C61;
HWREG(0x4402E10C) &= ~0x000000FF;
HWREG(0x4402E10C) |= 0x00000C61;
}
#endif
}
STATIC pin_obj_t *pin_find_pin_by_port_bit (const mp_obj_dict_t *named_pins, uint port, uint bit) {
mp_map_t *named_map = mp_obj_dict_get_map((mp_obj_t)named_pins);
for (uint i = 0; i < named_map->used; i++) {
if ((((pin_obj_t *)named_map->table[i].value)->port == port) &&
(((pin_obj_t *)named_map->table[i].value)->bit == bit)) {
return named_map->table[i].value;
}
}
return NULL;
}
/******************************************************************************
DEFINE PUBLIC FUNCTIONS
******************************************************************************/
void pin_init0(void) {
// this initalization also reconfigures the JTAG/SWD pins
#ifndef DEBUG
// assign all pins to the GPIO module so that peripherals can be connected to any
// pins without conflicts after a soft reset
mp_map_t *named_map = mp_obj_dict_get_map((mp_obj_t)&pin_board_pins_locals_dict);
for (uint i = 0; i < named_map->used - 1; i++) {
pin_obj_t * pin = (pin_obj_t *)named_map->table[i].value;
pin_deassign (pin);
}
#endif
}
/// \method getScanData()
/// Return list of the scan data tupples (ad_type, description, value)
///
STATIC mp_obj_t scan_entry_get_scan_data(mp_obj_t self_in) {
ubluepy_scan_entry_obj_t * self = MP_OBJ_TO_PTR(self_in);
mp_obj_t retval_list = mp_obj_new_list(0, NULL);
// TODO: check if self->data is set
mp_obj_array_t * data = MP_OBJ_TO_PTR(self->data);
uint16_t byte_index = 0;
while (byte_index < data->len) {
mp_obj_tuple_t *t = MP_OBJ_TO_PTR(mp_obj_new_tuple(3, NULL));
uint8_t adv_item_len = ((uint8_t * )data->items)[byte_index];
uint8_t adv_item_type = ((uint8_t * )data->items)[byte_index + 1];
mp_obj_t description = mp_const_none;
mp_map_t *constant_map = mp_obj_dict_get_map(ubluepy_constants_ad_types_type.locals_dict);
mp_map_elem_t *ad_types_table = MP_OBJ_TO_PTR(constant_map->table);
uint16_t num_of_elements = constant_map->used;
for (uint16_t i = 0; i < num_of_elements; i++) {
mp_map_elem_t element = (mp_map_elem_t)*ad_types_table;
ad_types_table++;
uint16_t element_value = mp_obj_get_int(element.value);
if (adv_item_type == element_value) {
qstr key_qstr = MP_OBJ_QSTR_VALUE(element.key);
const char * text = qstr_str(key_qstr);
size_t len = qstr_len(key_qstr);
vstr_t vstr;
vstr_init(&vstr, len);
vstr_printf(&vstr, "%s", text);
description = mp_obj_new_str(vstr.buf, vstr.len);
vstr_clear(&vstr);
}
}
t->items[0] = MP_OBJ_NEW_SMALL_INT(adv_item_type);
t->items[1] = description;
t->items[2] = mp_obj_new_bytearray(adv_item_len - 1,
&((uint8_t * )data->items)[byte_index + 2]);
mp_obj_list_append(retval_list, MP_OBJ_FROM_PTR(t));
byte_index += adv_item_len + 1;
}
return retval_list;
}
STATIC mp_obj_t mp_builtin_exec(uint n_args, const mp_obj_t *args) {
// Unconditional getting/setting assumes that these operations
// are cheap, which is the case when this comment was written.
mp_map_t *old_globals = rt_globals_get();
mp_map_t *old_locals = rt_locals_get();
if (n_args > 1) {
mp_obj_t globals = args[1];
mp_obj_t locals;
if (n_args > 2) {
locals = args[2];
} else {
locals = globals;
}
rt_globals_set(mp_obj_dict_get_map(globals));
rt_locals_set(mp_obj_dict_get_map(locals));
}
mp_obj_t res = parse_compile_execute(args[0], MP_PARSE_FILE_INPUT);
// TODO if the above call throws an exception, then we never get to reset the globals/locals
rt_globals_set(old_globals);
rt_locals_set(old_locals);
return res;
}
STATIC mp_obj_t pyb_help(uint n_args, const mp_obj_t *args) {
if (n_args == 0) {
// print a general help message
printf("%s", help_text);
} else {
// try to print something sensible about the given object
printf("object ");
mp_obj_print(args[0], PRINT_STR);
printf(" is of type %s\n", mp_obj_get_type_str(args[0]));
mp_map_t *map = NULL;
if (MP_OBJ_IS_TYPE(args[0], &mp_type_module)) {
map = mp_obj_dict_get_map(mp_obj_module_get_globals(args[0]));
} else {
mp_obj_type_t *type;
if (MP_OBJ_IS_TYPE(args[0], &mp_type_type)) {
type = args[0];
} else {
type = mp_obj_get_type(args[0]);
}
if (type->locals_dict != MP_OBJ_NULL && MP_OBJ_IS_TYPE(type->locals_dict, &mp_type_dict)) {
map = mp_obj_dict_get_map(type->locals_dict);
}
}
if (map != NULL) {
for (uint i = 0; i < map->alloc; i++) {
if (map->table[i].key != MP_OBJ_NULL) {
pyb_help_print_info_about_object(map->table[i].key, map->table[i].value);
}
}
}
}
return mp_const_none;
}
STATIC void pin_free_af_from_pins (uint8_t fn, uint8_t unit, uint8_t type) {
mp_map_t *named_map = mp_obj_dict_get_map((mp_obj_t)&pin_board_pins_locals_dict);
for (uint i = 0; i < named_map->used - 1; i++) {
pin_obj_t * pin = (pin_obj_t *)named_map->table[i].value;
// af is different than GPIO
if (pin->af > PIN_MODE_0) {
// check if the pin supports the target af
int af = pin_obj_find_af(pin, fn, unit, type);
if (af > 0 && af == pin->af) {
// the pin is assigned to the target af, de-assign it
pin_deassign (pin);
}
}
}
}
/// \method names()
/// Returns the cpu and board names for this pin.
STATIC mp_obj_t pin_names(mp_obj_t self_in) {
pin_obj_t *self = self_in;
mp_obj_t result = mp_obj_new_list(0, NULL);
mp_obj_list_append(result, MP_OBJ_NEW_QSTR(self->name));
mp_map_t *map = mp_obj_dict_get_map((mp_obj_t)&pin_board_pins_locals_dict);
mp_map_elem_t *elem = map->table;
for (mp_uint_t i = 0; i < map->used; i++, elem++) {
if (elem->value == self) {
mp_obj_list_append(result, elem->key);
}
}
return result;
}
mp_obj_t mp_builtin___import__(mp_uint_t n_args, const mp_obj_t *args) {
#if DEBUG_PRINT
DEBUG_printf("__import__:\n");
for (mp_uint_t i = 0; i < n_args; i++) {
DEBUG_printf(" ");
mp_obj_print(args[i], PRINT_REPR);
DEBUG_printf("\n");
}
#endif
mp_obj_t module_name = args[0];
mp_obj_t fromtuple = mp_const_none;
mp_int_t level = 0;
if (n_args >= 4) {
fromtuple = args[3];
if (n_args >= 5) {
level = MP_OBJ_SMALL_INT_VALUE(args[4]);
}
}
mp_uint_t mod_len;
const char *mod_str = mp_obj_str_get_data(module_name, &mod_len);
if (level != 0) {
// What we want to do here is to take name of current module,
// chop <level> trailing components, and concatenate with passed-in
// module name, thus resolving relative import name into absolue.
// This even appears to be correct per
// http://legacy.python.org/dev/peps/pep-0328/#relative-imports-and-name
// "Relative imports use a module's __name__ attribute to determine that
// module's position in the package hierarchy."
level--;
mp_obj_t this_name_q = mp_obj_dict_get(mp_globals_get(), MP_OBJ_NEW_QSTR(MP_QSTR___name__));
assert(this_name_q != MP_OBJ_NULL);
#if MICROPY_CPYTHON_COMPAT
if (MP_OBJ_QSTR_VALUE(this_name_q) == MP_QSTR___main__) {
// This is a module run by -m command-line switch, get its real name from backup attribute
this_name_q = mp_obj_dict_get(mp_globals_get(), MP_OBJ_NEW_QSTR(MP_QSTR___main__));
}
#endif
mp_map_t *globals_map = mp_obj_dict_get_map(mp_globals_get());
mp_map_elem_t *elem = mp_map_lookup(globals_map, MP_OBJ_NEW_QSTR(MP_QSTR___path__), MP_MAP_LOOKUP);
bool is_pkg = (elem != NULL);
#if DEBUG_PRINT
DEBUG_printf("Current module/package: ");
mp_obj_print(this_name_q, PRINT_REPR);
DEBUG_printf(", is_package: %d", is_pkg);
DEBUG_printf("\n");
#endif
mp_uint_t this_name_l;
const char *this_name = mp_obj_str_get_data(this_name_q, &this_name_l);
const char *p = this_name + this_name_l;
if (!is_pkg) {
// We have module, but relative imports are anchored at package, so
// go there.
chop_component(this_name, &p);
}
uint dots_seen = 0;
while (level--) {
chop_component(this_name, &p);
dots_seen++;
}
if (dots_seen == 0 && level >= 1) {
// http://legacy.python.org/dev/peps/pep-0328/#relative-imports-and-name
// "If the module's name does not contain any package information
// (e.g. it is set to '__main__') then relative imports are
// resolved as if the module were a top level module, regardless
// of where the module is actually located on the file system."
// Supposedly this if catches this condition and resolve it properly
// TODO: But nobody knows for sure. This condition happens when
// package's __init__.py does something like "import .submod". So,
// maybe we should check for package here? But quote above doesn't
// talk about packages, it talks about dot-less module names.
DEBUG_printf("Warning: no dots in current module name and level>0\n");
p = this_name + this_name_l;
} else if (level != -1) {
nlr_raise(mp_obj_new_exception_msg(&mp_type_ImportError, "Invalid relative import"));
}
uint new_mod_l = (mod_len == 0 ? (size_t)(p - this_name) : (size_t)(p - this_name) + 1 + mod_len);
char *new_mod = alloca(new_mod_l);
memcpy(new_mod, this_name, p - this_name);
if (mod_len != 0) {
new_mod[p - this_name] = '.';
memcpy(new_mod + (p - this_name) + 1, mod_str, mod_len);
}
qstr new_mod_q = qstr_from_strn(new_mod, new_mod_l);
DEBUG_printf("Resolved base name for relative import: '%s'\n", qstr_str(new_mod_q));
if (new_mod_q == MP_QSTR_) {
// CPython raises SystemError
nlr_raise(mp_obj_new_exception_msg(&mp_type_ImportError, "cannot perform relative import"));
}
module_name = MP_OBJ_NEW_QSTR(new_mod_q);
mod_str = new_mod;
mod_len = new_mod_l;
}
// check if module already exists
qstr module_name_qstr = mp_obj_str_get_qstr(module_name);
mp_obj_t module_obj = mp_module_get(module_name_qstr);
if (module_obj != MP_OBJ_NULL) {
DEBUG_printf("Module already loaded\n");
// If it's not a package, return module right away
char *p = strchr(mod_str, '.');
if (p == NULL) {
return module_obj;
}
// If fromlist is not empty, return leaf module
if (fromtuple != mp_const_none) {
return module_obj;
}
// Otherwise, we need to return top-level package
qstr pkg_name = qstr_from_strn(mod_str, p - mod_str);
return mp_module_get(pkg_name);
}
DEBUG_printf("Module not yet loaded\n");
#if MICROPY_MODULE_FROZEN
mp_lexer_t *lex = mp_find_frozen_module(mod_str, mod_len);
if (lex != NULL) {
module_obj = mp_obj_new_module(module_name_qstr);
// if args[3] (fromtuple) has magic value False, set up
// this module for command-line "-m" option (set module's
// name to __main__ instead of real name).
// TODO: Duplicated below too.
if (fromtuple == mp_const_false) {
mp_obj_module_t *o = module_obj;
mp_obj_dict_store(o->globals, MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR___main__));
}
do_load_from_lexer(module_obj, lex, mod_str);
return module_obj;
}
#endif
uint last = 0;
VSTR_FIXED(path, MICROPY_ALLOC_PATH_MAX)
module_obj = MP_OBJ_NULL;
mp_obj_t top_module_obj = MP_OBJ_NULL;
mp_obj_t outer_module_obj = MP_OBJ_NULL;
uint i;
for (i = 1; i <= mod_len; i++) {
if (i == mod_len || mod_str[i] == '.') {
// create a qstr for the module name up to this depth
qstr mod_name = qstr_from_strn(mod_str, i);
DEBUG_printf("Processing module: %s\n", qstr_str(mod_name));
DEBUG_printf("Previous path: =%.*s=\n", vstr_len(&path), vstr_str(&path));
// find the file corresponding to the module name
mp_import_stat_t stat;
if (vstr_len(&path) == 0) {
// first module in the dotted-name; search for a directory or file
stat = find_file(mod_str, i, &path);
} else {
// latter module in the dotted-name; append to path
vstr_add_char(&path, PATH_SEP_CHAR);
vstr_add_strn(&path, mod_str + last, i - last);
stat = stat_dir_or_file(&path);
}
DEBUG_printf("Current path: %.*s\n", vstr_len(&path), vstr_str(&path));
if (stat == MP_IMPORT_STAT_NO_EXIST) {
#if MICROPY_MODULE_WEAK_LINKS
// check if there is a weak link to this module
if (i == mod_len) {
mp_map_elem_t *el = mp_map_lookup((mp_map_t*)&mp_builtin_module_weak_links_map, MP_OBJ_NEW_QSTR(mod_name), MP_MAP_LOOKUP);
if (el == NULL) {
goto no_exist;
}
// found weak linked module
module_obj = el->value;
} else {
no_exist:
#else
{
#endif
// couldn't find the file, so fail
if (MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_TERSE) {
nlr_raise(mp_obj_new_exception_msg(&mp_type_ImportError, "module not found"));
} else {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ImportError,
"no module named '%q'", mod_name));
}
}
} else {
// found the file, so get the module
module_obj = mp_module_get(mod_name);
}
if (module_obj == MP_OBJ_NULL) {
// module not already loaded, so load it!
module_obj = mp_obj_new_module(mod_name);
// if args[3] (fromtuple) has magic value False, set up
// this module for command-line "-m" option (set module's
// name to __main__ instead of real name).
if (i == mod_len && fromtuple == mp_const_false) {
mp_obj_module_t *o = module_obj;
mp_obj_dict_store(o->globals, MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR___main__));
#if MICROPY_CPYTHON_COMPAT
// Store real name in "__main__" attribute. Choosen semi-randonly, to reuse existing qstr's.
mp_obj_dict_store(o->globals, MP_OBJ_NEW_QSTR(MP_QSTR___main__), MP_OBJ_NEW_QSTR(mod_name));
#endif
}
if (stat == MP_IMPORT_STAT_DIR) {
DEBUG_printf("%.*s is dir\n", vstr_len(&path), vstr_str(&path));
// https://docs.python.org/3/reference/import.html
// "Specifically, any module that contains a __path__ attribute is considered a package."
mp_store_attr(module_obj, MP_QSTR___path__, mp_obj_new_str(vstr_str(&path), vstr_len(&path), false));
vstr_add_char(&path, PATH_SEP_CHAR);
vstr_add_str(&path, "__init__.py");
if (mp_import_stat(vstr_null_terminated_str(&path)) != MP_IMPORT_STAT_FILE) {
vstr_cut_tail_bytes(&path, sizeof("/__init__.py") - 1); // cut off /__init__.py
mp_warning("%s is imported as namespace package", vstr_str(&path));
} else {
do_load(module_obj, &path);
vstr_cut_tail_bytes(&path, sizeof("/__init__.py") - 1); // cut off /__init__.py
}
} else { // MP_IMPORT_STAT_FILE
do_load(module_obj, &path);
// TODO: We cannot just break here, at the very least, we must execute
// trailer code below. But otherwise if there're remaining components,
// that would be (??) object path within module, not modules path within FS.
// break;
}
}
if (outer_module_obj != MP_OBJ_NULL) {
qstr s = qstr_from_strn(mod_str + last, i - last);
mp_store_attr(outer_module_obj, s, module_obj);
}
outer_module_obj = module_obj;
if (top_module_obj == MP_OBJ_NULL) {
top_module_obj = module_obj;
}
last = i + 1;
}
}
STATIC mp_obj_t pyb_help(uint n_args, const mp_obj_t *args) {
if (n_args == 0) {
// print a general help message
mp_printf(&mp_plat_print, "%s", help_text);
} else {
mp_obj_t args0 = args[0];
mp_obj_type_t *args0_type = mp_obj_get_type(args0);
if (args0_type->name == MP_QSTR_bound_method) {
args0 = ((mp_obj_t*)args0)[1]; // extract method
args0_type = mp_obj_get_type(args0);
}
// see if we have specific help info for this instance
for (size_t i = 0; i < MP_ARRAY_SIZE(help_table_instances); i++) {
if (args0 == help_table_instances[i].obj) {
mp_print_str(&mp_plat_print, help_table_instances[i].doc);
//if (args0_type == &mp_type_module) {
//TODO here we can list the things inside the module
//}
return mp_const_none;
}
}
// see if we have specific help info for this type
for (size_t i = 0; i < MP_ARRAY_SIZE(help_table_types); i++) {
if (args0 == help_table_types[i].obj || args0_type == help_table_types[i].obj) {
mp_print_str(&mp_plat_print, help_table_types[i].doc);
return mp_const_none;
}
}
// don't have specific help info, try instead to print something sensible
mp_printf(&mp_plat_print, "object ");
mp_obj_print(args0, PRINT_STR);
mp_printf(&mp_plat_print, " is of type %q\n", args0_type->name);
mp_map_t *map = NULL;
if (args0_type == &mp_type_module) {
map = mp_obj_dict_get_map(mp_obj_module_get_globals(args0));
} else {
mp_obj_type_t *type;
if (args0_type == &mp_type_type) {
type = args0;
} else {
type = args0_type;
}
if (type->locals_dict != MP_OBJ_NULL && MP_OBJ_IS_TYPE(type->locals_dict, &mp_type_dict)) {
map = mp_obj_dict_get_map(type->locals_dict);
}
}
if (map != NULL) {
for (uint i = 0; i < map->alloc; i++) {
if (map->table[i].key != MP_OBJ_NULL) {
pyb_help_print_info_about_object(map->table[i].key, map->table[i].value);
}
}
}
}
return mp_const_none;
}
// C API used to convert a user-supplied pin name into an ordinal pin number.
const pin_obj_t *pin_map_user_obj(mp_obj_t user_obj) {
const pin_obj_t *pin_obj;
// If a pin was provided, then use it
if (MP_OBJ_IS_TYPE(user_obj, &pin_obj_type)) {
pin_obj = user_obj;
if (pin_map_obj.debug) {
printf("Pin map passed pin ");
mp_obj_print((mp_obj_t)pin_obj, PRINT_STR);
printf("\n");
}
return pin_obj;
}
if (pin_map_obj.mapper) {
pin_obj = mp_call_function_1(pin_map_obj.mapper, user_obj);
if (pin_obj != mp_const_none) {
if (!MP_OBJ_IS_TYPE(pin_obj, &pin_obj_type)) {
nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, "Pin.mapper didn't return a Pin object"));
}
if (pin_map_obj.debug) {
printf("Pin.mapper maps ");
mp_obj_print(user_obj, PRINT_REPR);
printf(" to ");
mp_obj_print((mp_obj_t)pin_obj, PRINT_STR);
printf("\n");
}
return pin_obj;
}
// The pin mapping function returned mp_const_none, fall through to
// other lookup methods.
}
if (pin_map_obj.map_dict) {
mp_map_t *pin_map_map = mp_obj_dict_get_map(pin_map_obj.map_dict);
mp_map_elem_t *elem = mp_map_lookup(pin_map_map, user_obj, MP_MAP_LOOKUP);
if (elem != NULL && elem->value != NULL) {
pin_obj = elem->value;
if (pin_map_obj.debug) {
printf("Pin.map_dict maps ");
mp_obj_print(user_obj, PRINT_REPR);
printf(" to ");
mp_obj_print((mp_obj_t)pin_obj, PRINT_STR);
printf("\n");
}
return pin_obj;
}
}
// See if the pin name matches a board pin
const char *pin_name = mp_obj_str_get_str(user_obj);
pin_obj = pin_find_named_pin(pin_board_pins, pin_name);
if (pin_obj) {
if (pin_map_obj.debug) {
printf("Pin.board maps ");
mp_obj_print(user_obj, PRINT_REPR);
printf(" to ");
mp_obj_print((mp_obj_t)pin_obj, PRINT_STR);
printf("\n");
}
return pin_obj;
}
// See if the pin name matches a cpu pin
pin_obj = pin_find_named_pin(pin_cpu_pins, pin_name);
if (pin_obj) {
if (pin_map_obj.debug) {
printf("Pin.cpu maps ");
mp_obj_print(user_obj, PRINT_REPR);
printf(" to ");
mp_obj_print((mp_obj_t)pin_obj, PRINT_STR);
printf("\n");
}
return pin_obj;
}
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "pin '%s' not a valid pin identifier", pin_name));
}
// C API used to convert a user-supplied pin name into an ordinal pin number.
const pin_obj_t *pin_find(mp_obj_t user_obj) {
const pin_obj_t *pin_obj;
// If a pin was provided, then use it
if (mp_obj_is_type(user_obj, &pin_type)) {
pin_obj = MP_OBJ_TO_PTR(user_obj);
if (pin_class_debug) {
printf("Pin map passed pin ");
mp_obj_print(MP_OBJ_FROM_PTR(pin_obj), PRINT_STR);
printf("\n");
}
return pin_obj;
}
if (MP_STATE_PORT(pin_class_mapper) != mp_const_none) {
mp_obj_t o = mp_call_function_1(MP_STATE_PORT(pin_class_mapper), user_obj);
if (o != mp_const_none) {
if (!mp_obj_is_type(o, &pin_type)) {
mp_raise_ValueError("Pin.mapper didn't return a Pin object");
}
if (pin_class_debug) {
printf("Pin.mapper maps ");
mp_obj_print(user_obj, PRINT_REPR);
printf(" to ");
mp_obj_print(o, PRINT_STR);
printf("\n");
}
return MP_OBJ_TO_PTR(o);
}
// The pin mapping function returned mp_const_none, fall through to
// other lookup methods.
}
if (MP_STATE_PORT(pin_class_map_dict) != mp_const_none) {
mp_map_t *pin_map_map = mp_obj_dict_get_map(MP_STATE_PORT(pin_class_map_dict));
mp_map_elem_t *elem = mp_map_lookup(pin_map_map, user_obj, MP_MAP_LOOKUP);
if (elem != NULL && elem->value != MP_OBJ_NULL) {
mp_obj_t o = elem->value;
if (pin_class_debug) {
printf("Pin.map_dict maps ");
mp_obj_print(user_obj, PRINT_REPR);
printf(" to ");
mp_obj_print(o, PRINT_STR);
printf("\n");
}
return MP_OBJ_TO_PTR(o);
}
}
// See if the pin name matches a board pin
pin_obj = pin_find_named_pin(&pin_board_pins_locals_dict, user_obj);
if (pin_obj) {
if (pin_class_debug) {
printf("Pin.board maps ");
mp_obj_print(user_obj, PRINT_REPR);
printf(" to ");
mp_obj_print(MP_OBJ_FROM_PTR(pin_obj), PRINT_STR);
printf("\n");
}
return pin_obj;
}
// See if the pin name matches a cpu pin
pin_obj = pin_find_named_pin(&pin_cpu_pins_locals_dict, user_obj);
if (pin_obj) {
if (pin_class_debug) {
printf("Pin.cpu maps ");
mp_obj_print(user_obj, PRINT_REPR);
printf(" to ");
mp_obj_print(MP_OBJ_FROM_PTR(pin_obj), PRINT_STR);
printf("\n");
}
return pin_obj;
}
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "Pin(%s) doesn't exist", mp_obj_str_get_str(user_obj)));
}