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stm32: add lvgl binding (#16)

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* stm32: add lvgl

* stm32: add lvstm32 module
This commit is contained in:
David Madl 2020-02-01 21:56:01 +01:00 committed by GitHub
parent 88efdd57b4
commit 6b32fae730
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 45 additions and 0 deletions
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1
ports/stm32/boards/manifest.py
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@ -1,3 +1,4 @@
freeze('$(MPY_DIR)/drivers/dht', 'dht.py')
freeze('$(MPY_DIR)/drivers/display', ('lcd160cr.py', 'lcd160cr_test.py'))
freeze('$(MPY_DIR)/drivers/onewire', 'onewire.py')
freeze('$(MPY_DIR)/ports/stm32/modules', 'lvstm32.py')

25
ports/stm32/modules/lvstm32.py Normal file
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@ -0,0 +1,25 @@
# Module for advancing tick count and scheduling async event for lvgl on STM32.
# Import after lvgl module.
#
# MIT license; Copyright (c) 2020 Amir Gonnen
import lvgl as lv
import micropython
import pyb
class lvstm32():
def __init__(self, freq=25, timer_id=4):
self.task_handler_ref = self.task_handler # Allocation occurs here
self.delay = 1000 // freq
tim = pyb.Timer(timer_id)
tim.init(freq=freq)
tim.callback(self.timer_cb)
def task_handler(self, _):
lv.task_handler()
def timer_cb(self, t):
lv.tick_inc(self.delay)
# Passing self.task_handler would cause allocation.
micropython.schedule(self.task_handler_ref, 0)

19
ports/stm32/mpconfigport.h
View File

@ -173,6 +173,7 @@
#ifndef MICROPY_PY_NETWORK
#define MICROPY_PY_NETWORK (1)
#endif
#define MICROPY_PY_LVGL (1)
// fatfs configuration used in ffconf.h
#define MICROPY_FATFS_ENABLE_LFN (1)
@ -209,6 +210,15 @@ extern const struct _mp_obj_module_t mp_module_utime;
extern const struct _mp_obj_module_t mp_module_usocket;
extern const struct _mp_obj_module_t mp_module_network;
extern const struct _mp_obj_module_t mp_module_onewire;
extern const struct _mp_obj_module_t mp_module_lvgl;
#if MICROPY_PY_LVGL
#define MICROPY_PORT_LVGL_DEF \
{ MP_OBJ_NEW_QSTR(MP_QSTR_lvgl), (mp_obj_t)&mp_module_lvgl },
#else
#define MICROPY_PORT_LVGL_DEF
#endif
#if MICROPY_PY_STM
#define STM_BUILTIN_MODULE { MP_ROM_QSTR(MP_QSTR_stm), MP_ROM_PTR(&stm_module) },
@ -241,6 +251,7 @@ extern const struct _mp_obj_module_t mp_module_onewire;
{ MP_ROM_QSTR(MP_QSTR_utime), MP_ROM_PTR(&mp_module_utime) }, \
SOCKET_BUILTIN_MODULE \
NETWORK_BUILTIN_MODULE \
MICROPY_PORT_LVGL_DEF \
{ MP_ROM_QSTR(MP_QSTR__onewire), MP_ROM_PTR(&mp_module_onewire) }, \
// extra constants
@ -252,6 +263,12 @@ extern const struct _mp_obj_module_t mp_module_onewire;
#define MP_STATE_PORT MP_STATE_VM
#if MICROPY_PY_LVGL
#include "lib/lv_bindings/lvgl/src/lv_misc/lv_gc.h"
#else
#define LV_ROOTS
#endif
#if MICROPY_SSL_MBEDTLS
#define MICROPY_PORT_ROOT_POINTER_MBEDTLS void **mbedtls_memory;
#else
@ -266,6 +283,8 @@ struct _mp_bluetooth_nimble_root_pointers_t;
#endif
#define MICROPY_PORT_ROOT_POINTERS \
LV_ROOTS \
void *mp_lv_user_data; \
const char *readline_hist[8]; \
\
mp_obj_t pyb_hid_report_desc; \