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atmel-samd: Support Digital IO pins.

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Also bumps up the heap size.
This commit is contained in:
Scott Shawcroft 2016-08-24 17:38:08 -07:00
parent dade18bddf
commit 3cb4938c63
12 changed files with 911 additions and 4 deletions
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4
atmel-samd/Makefile
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@ -109,8 +109,11 @@ SRC_ASF = $(addprefix asf/sam0/,\
SRC_C = \
main.c \
modmachine.c \
modutime.c \
mphalport.c \
pin.c \
pin_named_pins.c \
uart.c \
asf/common/services/sleepmgr/samd/sleepmgr.c \
asf/common/services/usb/class/cdc/device/udi_cdc.c \
@ -121,6 +124,7 @@ SRC_C = \
asf/sam0/utils/cmsis/samd21/source/gcc/startup_samd21.c \
asf/sam0/utils/cmsis/samd21/source/system_samd21.c \
asf/sam0/utils/syscalls/gcc/syscalls.c \
boards/$(BOARD)/pins.c \
lib/utils/stdout_helpers.c \
lib/utils/printf.c \
lib/utils/pyexec.c \

75
atmel-samd/boards/arduino_zero/pins.c Normal file
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@ -0,0 +1,75 @@
#include "pins.h"
#include "asf/sam0/drivers/system/system.h"
#define PIN(p_name) \
const pin_obj_t pin_## p_name = { \
{ &pin_type }, \
.name = MP_QSTR_ ## p_name, \
.pin = (PIN_## p_name), \
}
PIN(PA02);
PIN(PB08);
PIN(PB09);
PIN(PA04);
PIN(PA05);
PIN(PB02);
PIN(PA11);
PIN(PA10);
PIN(PA14);
PIN(PA09);
PIN(PA08);
PIN(PA15);
PIN(PA20);
PIN(PA06);
PIN(PA07);
PIN(PA18);
PIN(PA16);
PIN(PA19);
PIN(PA17);
STATIC const mp_map_elem_t pin_cpu_pins_locals_dict_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA02), (mp_obj_t)&pin_PA02 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PB08), (mp_obj_t)&pin_PB08 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PB09), (mp_obj_t)&pin_PB09 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA04), (mp_obj_t)&pin_PA04 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA05), (mp_obj_t)&pin_PA05 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PB02), (mp_obj_t)&pin_PB02 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA11), (mp_obj_t)&pin_PA11 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA10), (mp_obj_t)&pin_PA10 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA14), (mp_obj_t)&pin_PA14 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA09), (mp_obj_t)&pin_PA09 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA08), (mp_obj_t)&pin_PA08 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA15), (mp_obj_t)&pin_PA15 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA20), (mp_obj_t)&pin_PA20 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA06), (mp_obj_t)&pin_PA06 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA07), (mp_obj_t)&pin_PA07 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA18), (mp_obj_t)&pin_PA18 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA16), (mp_obj_t)&pin_PA16 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA19), (mp_obj_t)&pin_PA19 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA17), (mp_obj_t)&pin_PA17 },
};
MP_DEFINE_CONST_DICT(pin_cpu_pins_locals_dict, pin_cpu_pins_locals_dict_table);
STATIC const mp_map_elem_t pin_board_pins_locals_dict_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_A0), (mp_obj_t)&pin_PA02 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_A1), (mp_obj_t)&pin_PB08 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_A2), (mp_obj_t)&pin_PB09 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_A3), (mp_obj_t)&pin_PA04 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_A4), (mp_obj_t)&pin_PA05 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_A5), (mp_obj_t)&pin_PB02 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_0RX), (mp_obj_t)&pin_PA11 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_1TX), (mp_obj_t)&pin_PA10 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_D2), (mp_obj_t)&pin_PA14 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_D3), (mp_obj_t)&pin_PA09 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_D4), (mp_obj_t)&pin_PA08 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_D5), (mp_obj_t)&pin_PA15 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_D6), (mp_obj_t)&pin_PA20 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_D8), (mp_obj_t)&pin_PA06 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_D9), (mp_obj_t)&pin_PA07 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_D10), (mp_obj_t)&pin_PA18 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_D11), (mp_obj_t)&pin_PA16 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_D12), (mp_obj_t)&pin_PA19 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_D13), (mp_obj_t)&pin_PA17 },
};
MP_DEFINE_CONST_DICT(pin_board_pins_locals_dict, pin_board_pins_locals_dict_table);

28
atmel-samd/boards/arduino_zero/pins.h Normal file
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@ -0,0 +1,28 @@
#ifndef __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_FEATHER_M0_BLE_PINS_H__
#define __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_FEATHER_M0_BLE_PINS_H__
#include "pin.h"
extern const pin_obj_t pin_PA02;
extern const pin_obj_t pin_PB08;
extern const pin_obj_t pin_PB09;
extern const pin_obj_t pin_PA04;
extern const pin_obj_t pin_PA05;
extern const pin_obj_t pin_PB02;
extern const pin_obj_t pin_PB11;
extern const pin_obj_t pin_PB10;
extern const pin_obj_t pin_PB21;
extern const pin_obj_t pin_PA11;
extern const pin_obj_t pin_PA10;
extern const pin_obj_t pin_PA22;
extern const pin_obj_t pin_PA23;
extern const pin_obj_t pin_PA15;
extern const pin_obj_t pin_PA20;
extern const pin_obj_t pin_PA07;
extern const pin_obj_t pin_PA18;
extern const pin_obj_t pin_PA16;
extern const pin_obj_t pin_PA19;
extern const pin_obj_t pin_PA17;
#endif // __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_FEATHER_M0_BLE_PINS_H__

78
atmel-samd/boards/feather_m0_ble/pins.c Normal file
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@ -0,0 +1,78 @@
#include "pins.h"
#include "asf/sam0/drivers/system/system.h"
#define PIN(p_name) \
const pin_obj_t pin_## p_name = { \
{ &pin_type }, \
.name = MP_QSTR_ ## p_name, \
.pin = (PIN_## p_name), \
}
PIN(PA02);
PIN(PB08);
PIN(PB09);
PIN(PA04);
PIN(PA05);
PIN(PB02);
PIN(PB11);
PIN(PB10);
PIN(PA12);
PIN(PA11);
PIN(PA10);
PIN(PA22);
PIN(PA23);
PIN(PA15);
PIN(PA20);
PIN(PA07);
PIN(PA18);
PIN(PA16);
PIN(PA19);
PIN(PA17);
STATIC const mp_map_elem_t pin_cpu_pins_locals_dict_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA02), (mp_obj_t)&pin_PA02 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PB08), (mp_obj_t)&pin_PB08 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PB09), (mp_obj_t)&pin_PB09 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA04), (mp_obj_t)&pin_PA04 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA05), (mp_obj_t)&pin_PA05 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PB02), (mp_obj_t)&pin_PB02 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PB11), (mp_obj_t)&pin_PB11 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PB10), (mp_obj_t)&pin_PB10 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA12), (mp_obj_t)&pin_PA12 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA11), (mp_obj_t)&pin_PA11 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA10), (mp_obj_t)&pin_PA10 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA22), (mp_obj_t)&pin_PA22 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA23), (mp_obj_t)&pin_PA23 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA15), (mp_obj_t)&pin_PA15 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA20), (mp_obj_t)&pin_PA20 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA07), (mp_obj_t)&pin_PA07 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA18), (mp_obj_t)&pin_PA18 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA16), (mp_obj_t)&pin_PA16 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA19), (mp_obj_t)&pin_PA19 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PA17), (mp_obj_t)&pin_PA17 },
};
MP_DEFINE_CONST_DICT(pin_cpu_pins_locals_dict, pin_cpu_pins_locals_dict_table);
STATIC const mp_map_elem_t pin_board_pins_locals_dict_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_A0), (mp_obj_t)&pin_PA02 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_A1), (mp_obj_t)&pin_PB08 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_A2), (mp_obj_t)&pin_PB09 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_A3), (mp_obj_t)&pin_PA04 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_A4), (mp_obj_t)&pin_PA05 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_A5), (mp_obj_t)&pin_PB02 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_SCK), (mp_obj_t)&pin_PB11 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_MOSI), (mp_obj_t)&pin_PB10 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_MISO), (mp_obj_t)&pin_PA12 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_0RX), (mp_obj_t)&pin_PA11 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_1TX), (mp_obj_t)&pin_PA10 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_SDA), (mp_obj_t)&pin_PA22 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_SCL), (mp_obj_t)&pin_PA23 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_D5), (mp_obj_t)&pin_PA15 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_D6), (mp_obj_t)&pin_PA20 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_D9), (mp_obj_t)&pin_PA07 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_D10), (mp_obj_t)&pin_PA18 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_D11), (mp_obj_t)&pin_PA16 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_D12), (mp_obj_t)&pin_PA19 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_D13), (mp_obj_t)&pin_PA17 },
};
MP_DEFINE_CONST_DICT(pin_board_pins_locals_dict, pin_board_pins_locals_dict_table);

28
atmel-samd/boards/feather_m0_ble/pins.h Normal file
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@ -0,0 +1,28 @@
#ifndef __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_FEATHER_M0_BLE_PINS_H__
#define __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_FEATHER_M0_BLE_PINS_H__
#include "pin.h"
extern const pin_obj_t pin_PA02;
extern const pin_obj_t pin_PB08;
extern const pin_obj_t pin_PB09;
extern const pin_obj_t pin_PA04;
extern const pin_obj_t pin_PA05;
extern const pin_obj_t pin_PB02;
extern const pin_obj_t pin_PB11;
extern const pin_obj_t pin_PB10;
extern const pin_obj_t pin_PB21;
extern const pin_obj_t pin_PA11;
extern const pin_obj_t pin_PA10;
extern const pin_obj_t pin_PA22;
extern const pin_obj_t pin_PA23;
extern const pin_obj_t pin_PA15;
extern const pin_obj_t pin_PA20;
extern const pin_obj_t pin_PA07;
extern const pin_obj_t pin_PA18;
extern const pin_obj_t pin_PA16;
extern const pin_obj_t pin_PA19;
extern const pin_obj_t pin_PA17;
#endif // __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_FEATHER_M0_BLE_PINS_H__

6
atmel-samd/main.c
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@ -18,6 +18,7 @@
#include "asf/sam0/drivers/system/system.h"
#include "mpconfigboard.h"
#include "pin.h"
#include "uart.h"
void do_str(const char *src, mp_parse_input_kind_t input_kind) {
@ -41,7 +42,7 @@ void do_str(const char *src, mp_parse_input_kind_t input_kind) {
}
static char *stack_top;
static char heap[2048];
static char heap[8192];
int main(int argc, char **argv) {
// initialise the cpu and peripherals
@ -57,6 +58,9 @@ int main(int argc, char **argv) {
gc_init(heap, heap + sizeof(heap));
#endif
mp_init();
pin_init0();
#if MICROPY_REPL_EVENT_DRIVEN
pyexec_event_repl_init();
for (;;) {

51
atmel-samd/modmachine.c Normal file
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@ -0,0 +1,51 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013-2015 Damien P. George
* Copyright (c) 2016 Paul Sokolovsky
*
* 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 <stdint.h>
#include <stdio.h>
#include "py/obj.h"
#include "py/runtime.h"
#include "pin.h"
#if MICROPY_PY_MACHINE
STATIC const mp_rom_map_elem_t machine_module_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_umachine) },
{ MP_ROM_QSTR(MP_QSTR_Pin), MP_ROM_PTR(&pin_type) },
};
STATIC MP_DEFINE_CONST_DICT(machine_module_globals, machine_module_globals_table);
const mp_obj_module_t machine_module = {
.base = { &mp_type_module },
.name = MP_QSTR_umachine,
.globals = (mp_obj_dict_t*)&machine_module_globals,
};
#endif // MICROPY_PY_MACHINE

14
atmel-samd/mpconfigport.h
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@ -53,7 +53,9 @@
#define MICROPY_LONGINT_IMPL (MICROPY_LONGINT_IMPL_NONE)
#define MICROPY_FLOAT_IMPL (MICROPY_FLOAT_IMPL_NONE)
#define MICROPY_PY_MACHINE (1)
#define MICROPY_MODULE_WEAK_LINKS (1)
#define MICROPY_REPL_AUTO_INDENT (1)
// type definitions for the specific machine
@ -78,17 +80,21 @@ typedef long mp_off_t;
extern const struct _mp_obj_module_t machine_module;
extern const struct _mp_obj_module_t utime_module;
//{ MP_OBJ_NEW_QSTR(MP_QSTR_umachine), (mp_obj_t)&machine_module },
#define MICROPY_PORT_BUILTIN_MODULES \
{ MP_OBJ_NEW_QSTR(MP_QSTR_umachine), (mp_obj_t)&machine_module }, \
{ MP_OBJ_NEW_QSTR(MP_QSTR_utime), (mp_obj_t)&utime_module } \
#define MICROPY_PORT_BUILTIN_MODULE_WEAK_LINKS \
{ MP_OBJ_NEW_QSTR(MP_QSTR_machine), (mp_obj_t)&machine_module }, \
{ MP_OBJ_NEW_QSTR(MP_QSTR_time), (mp_obj_t)&utime_module } \
// board specific definitions
#include "mpconfigboard.h"
#ifndef MICROPY_PIN_DEFS_PORT_H
#define MICROPY_PIN_DEFS_PORT_H "pins.h"
#endif
// We need to provide a declaration/definition of alloca()
#include <alloca.h>
@ -105,6 +111,8 @@ extern const struct _mp_obj_module_t utime_module;
#define MICROPY_PORT_ROOT_POINTERS \
const char *readline_hist[8]; \
vstr_t *repl_line;
vstr_t *repl_line; \
mp_obj_t pin_class_mapper; \
mp_obj_t pin_class_map_dict; \
#endif // __INCLUDED_MPCONFIGPORT_H

438
atmel-samd/pin.c Normal file
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@ -0,0 +1,438 @@
/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 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 <stdio.h>
#include <stdint.h>
#include <string.h>
#include "py/nlr.h"
#include "py/runtime.h"
#include "py/mphal.h"
#include "pin.h"
#include "asf/sam0/drivers/port/port.h"
/// \moduleref machine
/// \class Pin - control I/O pins
///
/// A pin is the basic object to control I/O pins. It has methods to set
/// the mode of the pin (input, output, etc) and methods to get and set the
/// digital logic level. For analog control of a pin, see the ADC class.
///
/// Usage Model:
///
/// All Board Pins are predefined as pyb.Pin.board.Name
///
/// x1_pin = machine.Pin.board.X1
///
/// g = machine.Pin(machine.Pin.board.X1, pyb.Pin.IN)
///
/// CPU pins which correspond to the board pins are available
/// as `pyb.cpu.Name`. For the CPU pins, the names are the port letter
/// followed by the pin number. On the PYBv1.0, `pyb.Pin.board.X1` and
/// `pyb.Pin.cpu.B6` are the same pin.
///
/// You can also use strings:
///
/// g = pyb.Pin('X1', pyb.Pin.OUT_PP)
///
/// Users can add their own names:
///
/// MyMapperDict = { 'LeftMotorDir' : pyb.Pin.cpu.C12 }
/// pyb.Pin.dict(MyMapperDict)
/// g = pyb.Pin("LeftMotorDir", pyb.Pin.OUT_OD)
///
/// and can query mappings
///
/// pin = pyb.Pin("LeftMotorDir")
///
/// Users can also add their own mapping function:
///
/// def MyMapper(pin_name):
/// if pin_name == "LeftMotorDir":
/// return pyb.Pin.cpu.A0
///
/// pyb.Pin.mapper(MyMapper)
///
/// So, if you were to call: `pyb.Pin("LeftMotorDir", pyb.Pin.OUT_PP)`
/// then `"LeftMotorDir"` is passed directly to the mapper function.
///
/// To summarise, the following order determines how things get mapped into
/// an ordinal pin number:
///
/// 1. Directly specify a pin object
/// 2. User supplied mapping function
/// 3. User supplied mapping (object must be usable as a dictionary key)
/// 4. Supply a string which matches a board pin
/// 5. Supply a string which matches a CPU port/pin
///
/// You can set `pyb.Pin.debug(True)` to get some debug information about
/// how a particular object gets mapped to a pin.
// Pin class variables
STATIC bool pin_class_debug;
void pin_init0(void) {
MP_STATE_PORT(pin_class_mapper) = mp_const_none;
MP_STATE_PORT(pin_class_map_dict) = mp_const_none;
pin_class_debug = false;
}
// 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 = user_obj;
if (pin_class_debug) {
printf("Pin map passed pin ");
mp_obj_print((mp_obj_t)pin_obj, PRINT_STR);
printf("\n");
}
return pin_obj;
}
if (MP_STATE_PORT(pin_class_mapper) != mp_const_none) {
pin_obj = mp_call_function_1(MP_STATE_PORT(pin_class_mapper), user_obj);
if (pin_obj != mp_const_none) {
if (!MP_OBJ_IS_TYPE(pin_obj, &pin_type)) {
nlr_raise(mp_obj_new_exception_msg(&mp_type_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((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 (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 != NULL) {
pin_obj = elem->value;
if (pin_class_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
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_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_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_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", mp_obj_str_get_str(user_obj)));
}
/// \method __str__()
/// Return a string describing the pin object.
STATIC void pin_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
pin_obj_t *self = self_in;
// pin name
mp_printf(print, "Pin(Pin.cpu.%q)", self->name);
}
STATIC mp_obj_t pin_obj_init_helper(const pin_obj_t *pin, mp_uint_t n_args, const mp_obj_t *args, mp_map_t *kw_args);
/// \classmethod \constructor(id, ...)
/// Create a new Pin object associated with the id. If additional arguments are given,
/// they are used to initialise the pin. See `init`.
STATIC mp_obj_t pin_make_new(const mp_obj_type_t *type, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true);
// Run an argument through the mapper and return the result.
const pin_obj_t *pin = pin_find(args[0]);
if (n_args > 1 || n_kw > 0) {
// pin mode given, so configure this GPIO
mp_map_t kw_args;
mp_map_init_fixed_table(&kw_args, n_kw, args + n_args);
pin_obj_init_helper(pin, n_args - 1, args + 1, &kw_args);
}
return (mp_obj_t)pin;
}
// fast method for getting/setting pin value
STATIC mp_obj_t pin_call(mp_obj_t self_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
mp_arg_check_num(n_args, n_kw, 0, 1, false);
pin_obj_t *self = self_in;
if (n_args == 0) {
// get pin
// TODO(tannewt): Do we need to switch read functions based on our direction?
return MP_OBJ_NEW_SMALL_INT(port_pin_get_input_level(self->pin));
} else {
// set pin
port_pin_set_output_level(self->pin, mp_obj_is_true(args[0]));
return mp_const_none;
}
}
/// \classmethod mapper([fun])
/// Get or set the pin mapper function.
STATIC mp_obj_t pin_mapper(mp_uint_t n_args, const mp_obj_t *args) {
if (n_args > 1) {
MP_STATE_PORT(pin_class_mapper) = args[1];
return mp_const_none;
}
return MP_STATE_PORT(pin_class_mapper);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pin_mapper_fun_obj, 1, 2, pin_mapper);
STATIC MP_DEFINE_CONST_CLASSMETHOD_OBJ(pin_mapper_obj, (mp_obj_t)&pin_mapper_fun_obj);
/// \classmethod dict([dict])
/// Get or set the pin mapper dictionary.
STATIC mp_obj_t pin_map_dict(mp_uint_t n_args, const mp_obj_t *args) {
if (n_args > 1) {
MP_STATE_PORT(pin_class_map_dict) = args[1];
return mp_const_none;
}
return MP_STATE_PORT(pin_class_map_dict);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pin_map_dict_fun_obj, 1, 2, pin_map_dict);
STATIC MP_DEFINE_CONST_CLASSMETHOD_OBJ(pin_map_dict_obj, (mp_obj_t)&pin_map_dict_fun_obj);
/// \classmethod debug([state])
/// Get or set the debugging state (`True` or `False` for on or off).
STATIC mp_obj_t pin_debug(mp_uint_t n_args, const mp_obj_t *args) {
if (n_args > 1) {
pin_class_debug = mp_obj_is_true(args[1]);
return mp_const_none;
}
return mp_obj_new_bool(pin_class_debug);
}
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);
// init(mode, pull=None, *, value, alt)
STATIC mp_obj_t pin_obj_init_helper(const pin_obj_t *self, mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_mode, MP_ARG_REQUIRED | MP_ARG_INT },
{ MP_QSTR_pull, MP_ARG_OBJ, {.u_obj = mp_const_none}},
{ MP_QSTR_value, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL}},
};
// 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);
// get io mode
enum port_pin_dir mode = args[0].u_int;
switch(mode)
{
case PORT_PIN_DIR_INPUT:
case PORT_PIN_DIR_OUTPUT:
case PORT_PIN_DIR_OUTPUT_WTH_READBACK:
//do the work
break;
default:
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "invalid pin mode: %d", mode));
}
// get pull mode
enum port_pin_pull pull = PORT_PIN_PULL_NONE;
if (args[1].u_obj != mp_const_none) {
pull = mp_obj_get_int(args[1].u_obj);
}
switch(pull)
{
case PORT_PIN_PULL_NONE:
case PORT_PIN_PULL_UP:
case PORT_PIN_PULL_DOWN:
//do the work
break;
default:
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "invalid pin pull: %d", pull));
}
// if given, set the pin value before initialising to prevent glitches
if (args[2].u_obj != MP_OBJ_NULL) {
port_pin_set_output_level(self->pin, mp_obj_is_true(args[2].u_obj));
}
// configure the GPIO as requested
struct port_config pin_conf;
port_get_config_defaults(&pin_conf);
pin_conf.direction = mode;
pin_conf.input_pull = pull;
port_pin_set_config(self->pin, &pin_conf);
return mp_const_none;
}
STATIC mp_obj_t pin_obj_init(mp_uint_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
return pin_obj_init_helper(args[0], n_args - 1, args + 1, kw_args);
}
MP_DEFINE_CONST_FUN_OBJ_KW(pin_init_obj, 1, pin_obj_init);
/// \method value([value])
/// Get or set the digital logic level of the pin:
///
/// - With no argument, return 0 or 1 depending on the logic level of the pin.
/// - With `value` given, set the logic level of the pin. `value` can be
/// anything that converts to a boolean. If it converts to `True`, the pin
/// is set high, otherwise it is set low.
STATIC mp_obj_t pin_value(mp_uint_t n_args, const mp_obj_t *args) {
return pin_call(args[0], n_args - 1, 0, args + 1);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pin_value_obj, 1, 2, pin_value);
/// \method low()
/// Set the pin to a low logic level.
STATIC mp_obj_t pin_low(mp_obj_t self_in) {
pin_obj_t *self = self_in;
port_pin_set_output_level(self->pin, false);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_low_obj, pin_low);
/// \method high()
/// Set the pin to a high logic level.
STATIC mp_obj_t pin_high(mp_obj_t self_in) {
pin_obj_t *self = self_in;
port_pin_set_output_level(self->pin, true);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_high_obj, pin_high);
/// \method name()
/// Get the pin name.
STATIC mp_obj_t pin_name(mp_obj_t self_in) {
pin_obj_t *self = self_in;
return MP_OBJ_NEW_QSTR(self->name);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_name_obj, pin_name);
/// \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;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_names_obj, pin_names);
/// \method pin()
/// Get the pin number.
STATIC mp_obj_t pin_pin(mp_obj_t self_in) {
pin_obj_t *self = self_in;
return MP_OBJ_NEW_SMALL_INT(self->pin);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_pin_obj, pin_pin);
/// \method gpio()
/// Returns the base address of the GPIO block associated with this pin.
STATIC mp_obj_t pin_gpio(mp_obj_t self_in) {
pin_obj_t *self = self_in;
return MP_OBJ_NEW_SMALL_INT((mp_int_t)port_get_group_from_gpio_pin(self->pin));
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_gpio_obj, pin_gpio);
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 },
{ MP_OBJ_NEW_QSTR(MP_QSTR_name), (mp_obj_t)&pin_name_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_names), (mp_obj_t)&pin_names_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_pin), (mp_obj_t)&pin_pin_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_gpio), (mp_obj_t)&pin_gpio_obj },
// class methods
{ MP_OBJ_NEW_QSTR(MP_QSTR_mapper), (mp_obj_t)&pin_mapper_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_dict), (mp_obj_t)&pin_map_dict_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_debug), (mp_obj_t)&pin_debug_obj },
// class attributes
{ MP_OBJ_NEW_QSTR(MP_QSTR_board), (mp_obj_t)&pin_board_pins_obj_type },
{ MP_OBJ_NEW_QSTR(MP_QSTR_cpu), (mp_obj_t)&pin_cpu_pins_obj_type },
// class constants
{ MP_OBJ_NEW_QSTR(MP_QSTR_IN), MP_OBJ_NEW_SMALL_INT(PORT_PIN_DIR_INPUT) },
{ MP_OBJ_NEW_QSTR(MP_QSTR_OUT), MP_OBJ_NEW_SMALL_INT(PORT_PIN_DIR_OUTPUT) },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PULL_NONE), MP_OBJ_NEW_SMALL_INT(PORT_PIN_PULL_NONE) },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PULL_UP), MP_OBJ_NEW_SMALL_INT(PORT_PIN_PULL_UP) },
{ MP_OBJ_NEW_QSTR(MP_QSTR_PULL_DOWN), MP_OBJ_NEW_SMALL_INT(PORT_PIN_PULL_DOWN) },
};
STATIC MP_DEFINE_CONST_DICT(pin_locals_dict, pin_locals_dict_table);
const mp_obj_type_t pin_type = {
{ &mp_type_type },
.name = MP_QSTR_Pin,
.print = pin_print,
.make_new = pin_make_new,
.call = pin_call,
.locals_dict = (mp_obj_t)&pin_locals_dict,
};

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/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 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.
*/
#ifndef __MICROPY_INCLUDED_ATMEL_SAMD_PIN_H__
#define __MICROPY_INCLUDED_ATMEL_SAMD_PIN_H__
// This file requires pin_defs_xxx.h (which has port specific enums and
// defines, so we include it here. It should never be included directly
#include "mpconfigport.h"
#include "py/obj.h"
typedef struct {
mp_obj_base_t base;
qstr name;
uint32_t pin;
} pin_obj_t;
extern const mp_obj_type_t pin_type;
typedef struct {
const char *name;
const pin_obj_t *pin;
} pin_named_pin_t;
extern const pin_named_pin_t pin_board_pins[];
extern const pin_named_pin_t pin_cpu_pins[];
//extern pin_map_obj_t pin_map_obj;
typedef struct {
mp_obj_base_t base;
qstr name;
const pin_named_pin_t *named_pins;
} pin_named_pins_obj_t;
extern const mp_obj_type_t pin_board_pins_obj_type;
extern const mp_obj_type_t pin_cpu_pins_obj_type;
extern const mp_obj_dict_t pin_cpu_pins_locals_dict;
extern const mp_obj_dict_t pin_board_pins_locals_dict;
MP_DECLARE_CONST_FUN_OBJ(pin_init_obj);
void pin_init0(void);
uint32_t pin_get_mode(const pin_obj_t *pin);
uint32_t pin_get_pull(const pin_obj_t *pin);
uint32_t pin_get_af(const pin_obj_t *pin);
const pin_obj_t *pin_find(mp_obj_t user_obj);
const pin_obj_t *pin_find_named_pin(const mp_obj_dict_t *named_pins, mp_obj_t name);
#endif // __MICROPY_INCLUDED_ATMEL_SAMD_PIN_H__

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#include <stdint.h>
#include "pin.h"
// Returns the pin mode. This value returned by this macro should be one of:
// GPIO_MODE_INPUT, GPIO_MODE_OUTPUT_PP, GPIO_MODE_OUTPUT_OD,
// GPIO_MODE_AF_PP, GPIO_MODE_AF_OD, or GPIO_MODE_ANALOG.
uint32_t pin_get_mode(const pin_obj_t *pin) {
if (pin->gpio == NULL) {
// Analog only pin
return GPIO_MODE_ANALOG;
}
volatile uint32_t *port_pcr = GPIO_PIN_TO_PORT_PCR(pin->gpio, pin->pin);
uint32_t pcr = *port_pcr;
uint32_t af = (pcr & PORT_PCR_MUX_MASK) >> 8;
if (af == 0) {
return GPIO_MODE_ANALOG;
}
if (af == 1) {
if (pin->gpio->PDDR & (1 << pin->pin)) {
if (pcr & PORT_PCR_ODE) {
return GPIO_MODE_OUTPUT_OD;
}
return GPIO_MODE_OUTPUT_PP;
}
return GPIO_MODE_INPUT;
}
if (pcr & PORT_PCR_ODE) {
return GPIO_MODE_AF_OD;
}
return GPIO_MODE_AF_PP;
}
// Returns the pin pullup/pulldown. The value returned by this macro should
// be one of GPIO_NOPULL, GPIO_PULLUP, or GPIO_PULLDOWN.
uint32_t pin_get_pull(const pin_obj_t *pin) {
if (pin->gpio == NULL) {
// Analog only pin
return GPIO_NOPULL;
}
volatile uint32_t *port_pcr = GPIO_PIN_TO_PORT_PCR(pin->gpio, pin->pin);
uint32_t pcr = *port_pcr;
uint32_t af = (pcr & PORT_PCR_MUX_MASK) >> 8;
// pull is only valid for digital modes (hence the af > 0 test)
if (af > 0 && (pcr & PORT_PCR_PE) != 0) {
if (pcr & PORT_PCR_PS) {
return GPIO_PULLUP;
}
return GPIO_PULLDOWN;
}
return GPIO_NOPULL;
}

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/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 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 <stdio.h>
#include <string.h>
#include "py/runtime.h"
#include "py/mphal.h"
#include "pin.h"
STATIC void pin_named_pins_obj_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
pin_named_pins_obj_t *self = self_in;
mp_printf(print, "<Pin.%q>", self->name);
}
const mp_obj_type_t pin_cpu_pins_obj_type = {
{ &mp_type_type },
.name = MP_QSTR_cpu,
.print = pin_named_pins_obj_print,
.locals_dict = (mp_obj_t)&pin_cpu_pins_locals_dict,
};
const mp_obj_type_t pin_board_pins_obj_type = {
{ &mp_type_type },
.name = MP_QSTR_board,
.print = pin_named_pins_obj_print,
.locals_dict = (mp_obj_t)&pin_board_pins_locals_dict,
};
const 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;
}