210 lines
7.4 KiB
C
210 lines
7.4 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2020 Jeff Epler for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <string.h>
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#include "py/gc.h"
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#include "py/obj.h"
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#include "py/objarray.h"
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#include "py/objproperty.h"
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#include "py/runtime.h"
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#include "common-hal/rgbmatrix/RGBMatrix.h"
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#include "shared-module/rgbmatrix/allocator.h"
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#include "shared-bindings/rgbmatrix/RGBMatrix.h"
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#include "shared-bindings/microcontroller/Pin.h"
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#include "shared-bindings/microcontroller/__init__.h"
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#include "shared-bindings/util.h"
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#include "shared-module/framebufferio/FramebufferDisplay.h"
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extern Protomatter_core *_PM_protoPtr;
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void common_hal_rgbmatrix_rgbmatrix_construct(rgbmatrix_rgbmatrix_obj_t *self, int width, int bit_depth, uint8_t rgb_count, uint8_t *rgb_pins, uint8_t addr_count, uint8_t *addr_pins, uint8_t clock_pin, uint8_t latch_pin, uint8_t oe_pin, bool doublebuffer, mp_obj_t framebuffer, void *timer) {
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self->width = width;
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self->bit_depth = bit_depth;
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self->rgb_count = rgb_count;
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memcpy(self->rgb_pins, rgb_pins, rgb_count);
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self->addr_count = addr_count;
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memcpy(self->addr_pins, addr_pins, addr_count);
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self->clock_pin = clock_pin;
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self->oe_pin = oe_pin;
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self->latch_pin = latch_pin;
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self->doublebuffer = doublebuffer;
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self->timer = timer ? timer : common_hal_rgbmatrix_timer_allocate();
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if (self->timer == NULL) {
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mp_raise_ValueError(translate("No timer available"));
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}
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self->width = width;
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self->bufsize = 2 * width * rgb_count / 3 * (1 << addr_count);
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common_hal_rgbmatrix_rgbmatrix_reconstruct(self, framebuffer);
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}
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void common_hal_rgbmatrix_rgbmatrix_reconstruct(rgbmatrix_rgbmatrix_obj_t* self, mp_obj_t framebuffer) {
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if (framebuffer) {
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self->framebuffer = framebuffer;
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framebuffer = mp_obj_new_bytearray_of_zeros(self->bufsize);
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mp_get_buffer_raise(self->framebuffer, &self->bufinfo, MP_BUFFER_READ);
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if (mp_get_buffer(self->framebuffer, &self->bufinfo, MP_BUFFER_RW)) {
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self->bufinfo.typecode = 'H' | MP_OBJ_ARRAY_TYPECODE_FLAG_RW;
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} else {
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self->bufinfo.typecode = 'H';
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}
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// verify that the matrix is big enough
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mp_get_index(mp_obj_get_type(self->framebuffer), self->bufinfo.len, MP_OBJ_NEW_SMALL_INT(self->bufsize-1), false);
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} else {
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_PM_FREE(self->bufinfo.buf);
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_PM_FREE(self->core.rgbPins);
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_PM_FREE(self->core.addr);
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_PM_FREE(self->core.screenData);
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self->framebuffer = NULL;
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self->bufinfo.buf = _PM_allocator_impl(self->bufsize);
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self->bufinfo.len = self->bufsize;
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self->bufinfo.typecode = 'H' | MP_OBJ_ARRAY_TYPECODE_FLAG_RW;
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}
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ProtomatterStatus stat = _PM_init(&self->core,
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self->width, self->bit_depth,
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self->rgb_count/6, self->rgb_pins,
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self->addr_count, self->addr_pins,
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self->clock_pin, self->latch_pin, self->oe_pin,
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self->doublebuffer, self->timer);
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if (stat == PROTOMATTER_OK) {
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_PM_protoPtr = &self->core;
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common_hal_mcu_disable_interrupts();
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common_hal_rgbmatrix_timer_enable(self->timer);
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stat = _PM_begin(&self->core);
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_PM_convert_565(&self->core, self->bufinfo.buf, self->width);
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common_hal_mcu_enable_interrupts();
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_PM_swapbuffer_maybe(&self->core);
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}
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if (stat != PROTOMATTER_OK) {
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// XXX this deinit() actually makes crashy-crashy
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// can trigger it by sending inappropriate pins
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common_hal_rgbmatrix_rgbmatrix_deinit(self);
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switch (stat) {
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case PROTOMATTER_ERR_PINS:
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mp_raise_ValueError(translate("Invalid pin"));
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break;
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case PROTOMATTER_ERR_ARG:
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mp_raise_ValueError(translate("Invalid argument"));
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break;
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case PROTOMATTER_ERR_MALLOC: /// should have already been signaled as NLR
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default:
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mp_raise_msg_varg(&mp_type_RuntimeError,
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translate("Internal error #%d"), (int)stat);
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break;
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}
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}
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self->paused = 0;
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}
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STATIC void free_pin(uint8_t *pin) {
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if (*pin != COMMON_HAL_MCU_NO_PIN) {
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common_hal_mcu_pin_reset_number(*pin);
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}
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*pin = COMMON_HAL_MCU_NO_PIN;
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}
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STATIC void free_pin_seq(uint8_t *seq, int count) {
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for (int i=0; i<count; i++) {
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free_pin(&seq[i]);
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}
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}
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void common_hal_rgbmatrix_rgbmatrix_deinit(rgbmatrix_rgbmatrix_obj_t* self) {
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if (self->timer) {
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common_hal_rgbmatrix_timer_free(self->timer);
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self->timer = 0;
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}
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if (_PM_protoPtr == &self->core) {
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_PM_protoPtr = NULL;
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}
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free_pin_seq(self->rgb_pins, self->rgb_count);
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free_pin_seq(self->addr_pins, self->addr_count);
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free_pin(&self->clock_pin);
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free_pin(&self->latch_pin);
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free_pin(&self->oe_pin);
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if (self->core.rgbPins) {
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_PM_free(&self->core);
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}
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memset(&self->core, 0, sizeof(self->core));
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// If it was supervisor-allocated, it is supervisor-freed and the pointer
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// is zeroed, otherwise the pointer is just zeroed
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_PM_FREE(self->bufinfo.buf);
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self->base.type = NULL;
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// If a framebuffer was passed in to the constructor, NULL the reference
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// here so that it will become GC'able
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self->framebuffer = NULL;
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}
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void rgbmatrix_rgbmatrix_collect_ptrs(rgbmatrix_rgbmatrix_obj_t* self) {
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gc_collect_ptr(self->framebuffer);
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gc_collect_ptr(self->core.rgbPins);
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gc_collect_ptr(self->core.addr);
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gc_collect_ptr(self->core.screenData);
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}
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void common_hal_rgbmatrix_rgbmatrix_set_paused(rgbmatrix_rgbmatrix_obj_t* self, bool paused) {
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if (paused && !self->paused) {
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_PM_stop(&self->core);
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} else if (!paused && self->paused) {
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_PM_resume(&self->core);
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}
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self->paused = paused;
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}
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bool common_hal_rgbmatrix_rgbmatrix_get_paused(rgbmatrix_rgbmatrix_obj_t* self) {
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return self->paused;
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}
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void common_hal_rgbmatrix_rgbmatrix_refresh(rgbmatrix_rgbmatrix_obj_t* self) {
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_PM_convert_565(&self->core, self->bufinfo.buf, self->width);
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_PM_swapbuffer_maybe(&self->core);
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}
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int common_hal_rgbmatrix_rgbmatrix_get_width(rgbmatrix_rgbmatrix_obj_t* self) {
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return self->width;
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}
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int common_hal_rgbmatrix_rgbmatrix_get_height(rgbmatrix_rgbmatrix_obj_t* self) {
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int computed_height = (self->rgb_count / 3) << (self->addr_count);
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return computed_height;
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}
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