8137e2d6d2
This simplifies allocating outside of the VM because the VM doesn't take up all remaining memory by default. On ESP we delegate to the IDF for allocations. For all other ports, we use TLSF to manage an outer "port" heap. The IDF uses TLSF internally and we use their fork for the other ports. This also removes the dynamic C stack sizing. It wasn't often used and is not possible with a fixed outer heap. Fixes #8512. Fixes #7334.
241 lines
9.4 KiB
C
241 lines
9.4 KiB
C
/*
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* This file is part of the MicroPython 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) 2018 Scott Shawcroft 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 "shared-module/displayio/bus_core.h"
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#include "py/gc.h"
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#include "py/runtime.h"
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#if CIRCUITPY_FOURWIRE
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#include "shared-bindings/fourwire/FourWire.h"
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#endif
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#if CIRCUITPY_I2CDISPLAYBUS
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#include "shared-bindings/i2cdisplaybus/I2CDisplayBus.h"
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#endif
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#if CIRCUITPY_PARALLELDISPLAYBUS
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#include "shared-bindings/paralleldisplaybus/ParallelBus.h"
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#endif
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#include "shared-bindings/microcontroller/Pin.h"
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#include "shared-bindings/time/__init__.h"
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#include "shared-module/displayio/__init__.h"
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#include "shared-module/displayio/display_core.h"
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#include "supervisor/shared/display.h"
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#include "supervisor/shared/tick.h"
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#include <stdint.h>
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#include <string.h>
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#define DISPLAYIO_CORE_DEBUG(...) (void)0
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// #define DISPLAYIO_CORE_DEBUG(...) mp_printf(&mp_plat_print __VA_OPT__(,) __VA_ARGS__)
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void displayio_display_bus_construct(displayio_display_bus_t *self,
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mp_obj_t bus, uint16_t ram_width, uint16_t ram_height, int16_t colstart, int16_t rowstart,
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uint16_t column_command, uint16_t row_command, uint16_t set_current_column_command, uint16_t set_current_row_command,
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bool data_as_commands, bool always_toggle_chip_select, bool SH1107_addressing, bool address_little_endian) {
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self->ram_width = ram_width;
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self->ram_height = ram_height;
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self->colstart = colstart;
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self->rowstart = rowstart;
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self->column_command = column_command;
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self->row_command = row_command;
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self->set_current_column_command = set_current_column_command;
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self->set_current_row_command = set_current_row_command;
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self->data_as_commands = data_as_commands;
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self->always_toggle_chip_select = always_toggle_chip_select;
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self->SH1107_addressing = SH1107_addressing;
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self->address_little_endian = address_little_endian;
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#if CIRCUITPY_PARALLELDISPLAYBUS
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if (mp_obj_is_type(bus, ¶lleldisplaybus_parallelbus_type)) {
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self->bus_reset = common_hal_paralleldisplaybus_parallelbus_reset;
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self->bus_free = common_hal_paralleldisplaybus_parallelbus_bus_free;
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self->begin_transaction = common_hal_paralleldisplaybus_parallelbus_begin_transaction;
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self->send = common_hal_paralleldisplaybus_parallelbus_send;
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self->end_transaction = common_hal_paralleldisplaybus_parallelbus_end_transaction;
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self->collect_ptrs = common_hal_paralleldisplaybus_parallelbus_collect_ptrs;
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} else
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#endif
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#if CIRCUITPY_FOURWIRE
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if (mp_obj_is_type(bus, &fourwire_fourwire_type)) {
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self->bus_reset = common_hal_fourwire_fourwire_reset;
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self->bus_free = common_hal_fourwire_fourwire_bus_free;
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self->begin_transaction = common_hal_fourwire_fourwire_begin_transaction;
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self->send = common_hal_fourwire_fourwire_send;
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self->end_transaction = common_hal_fourwire_fourwire_end_transaction;
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self->collect_ptrs = common_hal_fourwire_fourwire_collect_ptrs;
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} else
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#endif
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#if CIRCUITPY_I2CDISPLAYBUS
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if (mp_obj_is_type(bus, &i2cdisplaybus_i2cdisplaybus_type)) {
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self->bus_reset = common_hal_i2cdisplaybus_i2cdisplaybus_reset;
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self->bus_free = common_hal_i2cdisplaybus_i2cdisplaybus_bus_free;
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self->begin_transaction = common_hal_i2cdisplaybus_i2cdisplaybus_begin_transaction;
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self->send = common_hal_i2cdisplaybus_i2cdisplaybus_send;
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self->end_transaction = common_hal_i2cdisplaybus_i2cdisplaybus_end_transaction;
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self->collect_ptrs = common_hal_i2cdisplaybus_i2cdisplaybus_collect_ptrs;
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} else
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#endif
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{
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mp_raise_ValueError(MP_ERROR_TEXT("Unsupported display bus type"));
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}
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self->bus = bus;
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}
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bool displayio_display_bus_is_free(displayio_display_bus_t *self) {
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return !self->bus || self->bus_free(self->bus);
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}
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bool displayio_display_bus_begin_transaction(displayio_display_bus_t *self) {
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return self->begin_transaction(self->bus);
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}
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void displayio_display_bus_end_transaction(displayio_display_bus_t *self) {
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self->end_transaction(self->bus);
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}
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void displayio_display_bus_set_region_to_update(displayio_display_bus_t *self, displayio_display_core_t *display, displayio_area_t *area) {
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uint16_t x1 = area->x1 + self->colstart;
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uint16_t x2 = area->x2 + self->colstart;
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uint16_t y1 = area->y1 + self->rowstart;
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uint16_t y2 = area->y2 + self->rowstart;
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// Collapse down the dimension where multiple pixels are in a byte.
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if (display->colorspace.depth < 8) {
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uint8_t pixels_per_byte = 8 / display->colorspace.depth;
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if (display->colorspace.pixels_in_byte_share_row) {
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x1 /= pixels_per_byte * display->colorspace.bytes_per_cell;
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x2 /= pixels_per_byte * display->colorspace.bytes_per_cell;
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} else {
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y1 /= pixels_per_byte * display->colorspace.bytes_per_cell;
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y2 /= pixels_per_byte * display->colorspace.bytes_per_cell;
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}
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}
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x2 -= 1;
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y2 -= 1;
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display_chip_select_behavior_t chip_select = CHIP_SELECT_UNTOUCHED;
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if (self->always_toggle_chip_select || self->data_as_commands) {
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chip_select = CHIP_SELECT_TOGGLE_EVERY_BYTE;
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}
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// Set column.
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displayio_display_bus_begin_transaction(self);
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uint8_t data[5];
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data[0] = self->column_command;
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uint8_t data_length = 1;
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display_byte_type_t data_type = DISPLAY_DATA;
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if (!self->data_as_commands) {
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self->send(self->bus, DISPLAY_COMMAND, CHIP_SELECT_UNTOUCHED, data, 1);
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data_length = 0;
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} else {
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data_type = DISPLAY_COMMAND;
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}
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if (self->ram_width < 0x100) {
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data[data_length++] = x1;
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data[data_length++] = x2;
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} else {
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if (self->address_little_endian) {
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x1 = __builtin_bswap16(x1);
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x2 = __builtin_bswap16(x2);
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}
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data[data_length++] = x1 >> 8;
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data[data_length++] = x1 & 0xff;
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data[data_length++] = x2 >> 8;
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data[data_length++] = x2 & 0xff;
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}
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// Quirk for SH1107 "SH1107_addressing"
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// Column lower command = 0x00, Column upper command = 0x10
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if (self->SH1107_addressing) {
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data[0] = ((x1 >> 4) & 0x0F) | 0x10; // 0x10 to 0x17
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data[1] = x1 & 0x0F; // 0x00 to 0x0F
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data_length = 2;
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}
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self->send(self->bus, data_type, chip_select, data, data_length);
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displayio_display_bus_end_transaction(self);
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if (self->set_current_column_command != NO_COMMAND) {
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uint8_t command = self->set_current_column_command;
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displayio_display_bus_begin_transaction(self);
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self->send(self->bus, DISPLAY_COMMAND, chip_select, &command, 1);
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// Only send the first half of data because it is the first coordinate.
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self->send(self->bus, DISPLAY_DATA, chip_select, data, data_length / 2);
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displayio_display_bus_end_transaction(self);
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}
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// Set row.
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displayio_display_bus_begin_transaction(self);
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data[0] = self->row_command;
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data_length = 1;
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if (!self->data_as_commands) {
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self->send(self->bus, DISPLAY_COMMAND, CHIP_SELECT_UNTOUCHED, data, 1);
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data_length = 0;
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}
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if (self->ram_height < 0x100) {
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data[data_length++] = y1;
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data[data_length++] = y2;
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} else {
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if (self->address_little_endian) {
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y1 = __builtin_bswap16(y1);
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y2 = __builtin_bswap16(y2);
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}
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data[data_length++] = y1 >> 8;
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data[data_length++] = y1 & 0xff;
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data[data_length++] = y2 >> 8;
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data[data_length++] = y2 & 0xff;
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}
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// Quirk for SH1107 "SH1107_addressing"
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// Page address command = 0xB0
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if (self->SH1107_addressing) {
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// set the page to our y value
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data[0] = 0xB0 | y1;
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data_length = 1;
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}
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self->send(self->bus, data_type, chip_select, data, data_length);
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displayio_display_bus_end_transaction(self);
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if (self->set_current_row_command != NO_COMMAND) {
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uint8_t command = self->set_current_row_command;
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displayio_display_bus_begin_transaction(self);
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self->send(self->bus, DISPLAY_COMMAND, chip_select, &command, 1);
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// Only send the first half of data because it is the first coordinate.
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self->send(self->bus, DISPLAY_DATA, chip_select, data, data_length / 2);
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displayio_display_bus_end_transaction(self);
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}
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}
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void displayio_display_bus_collect_ptrs(displayio_display_bus_t *self) {
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self->collect_ptrs(self->bus);
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}
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