93 lines
4.3 KiB
C
93 lines
4.3 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) 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 "py/objarray.h"
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#include "py/runtime.h"
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#include "shared-bindings/busio/SPI.h"
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#include "shared-bindings/microcontroller/Pin.h"
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#include "shared-bindings/sharpdisplay/SharpMemoryFramebuffer.h"
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#include "shared-module/displayio/__init__.h"
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#include "shared-module/sharpdisplay/SharpMemoryFramebuffer.h"
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STATIC mp_obj_t sharpdisplay_framebuffer_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_spi_bus, ARG_chip_select, ARG_width, ARG_height, ARG_baudrate, NUM_ARGS };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_spi_bus, MP_ARG_OBJ | MP_ARG_REQUIRED, {.u_obj = MP_OBJ_NULL} },
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{ MP_QSTR_chip_select, MP_ARG_OBJ | MP_ARG_REQUIRED, {.u_obj = MP_OBJ_NULL} },
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{ MP_QSTR_width, MP_ARG_INT | MP_ARG_REQUIRED, {.u_int = 0} },
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{ MP_QSTR_height, MP_ARG_INT | MP_ARG_REQUIRED, {.u_int = 0} },
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{ MP_QSTR_baudrate, MP_ARG_INT, {.u_int = 2000000} },
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};
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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MP_STATIC_ASSERT( MP_ARRAY_SIZE(allowed_args) == NUM_ARGS );
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mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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mcu_pin_obj_t *chip_select = validate_obj_is_free_pin(args[ARG_chip_select].u_obj);
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busio_spi_obj_t *spi = validate_obj_is_spi_bus(args[ARG_spi_bus].u_obj);
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sharpdisplay_framebuffer_obj_t* self = &allocate_display_bus_or_raise()->sharpdisplay;
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self->base.type = &sharpdisplay_framebuffer_type;
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common_hal_sharpdisplay_framebuffer_construct(self, spi, chip_select, args[ARG_baudrate].u_int, args[ARG_width].u_int, args[ARG_height].u_int);
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return MP_OBJ_FROM_PTR(self);
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}
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STATIC mp_int_t sharpdisplay_framebuffer_get_buffer(mp_obj_t self_in, mp_buffer_info_t *bufinfo, mp_uint_t flags) {
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sharpdisplay_framebuffer_obj_t *self = (sharpdisplay_framebuffer_obj_t*)self_in;
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// a readonly framebuffer would be unusual but not impossible
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if ((flags & MP_BUFFER_WRITE) && !(self->bufinfo.typecode & MP_OBJ_ARRAY_TYPECODE_FLAG_RW)) {
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return 1;
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}
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*bufinfo = self->bufinfo;
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return 0;
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}
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STATIC mp_obj_t sharpdisplay_framebuffer_deinit(mp_obj_t self_in) {
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sharpdisplay_framebuffer_obj_t *self = (sharpdisplay_framebuffer_obj_t*)self_in;
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common_hal_sharpdisplay_framebuffer_deinit(self);
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(sharpdisplay_framebuffer_deinit_obj, sharpdisplay_framebuffer_deinit);
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STATIC const mp_rom_map_elem_t sharpdisplay_framebuffer_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&sharpdisplay_framebuffer_deinit_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(sharpdisplay_framebuffer_locals_dict, sharpdisplay_framebuffer_locals_dict_table);
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const mp_obj_type_t sharpdisplay_framebuffer_type = {
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{ &mp_type_type },
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.name = MP_QSTR_SharpMemoryFramebuffer,
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.buffer_p = { .get_buffer = sharpdisplay_framebuffer_get_buffer, },
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.make_new = sharpdisplay_framebuffer_make_new,
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.protocol = &sharpdisplay_framebuffer_proto,
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.locals_dict = (mp_obj_dict_t*)&sharpdisplay_framebuffer_locals_dict,
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};
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