libwebsockets
Lightweight C library for HTML5 websockets
lws-spd1656-spi.h
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1 /*
2  * lws abstract display implementation for epd-acep on spi
3  *
4  * Copyright (C) 2019 - 2022 Andy Green <andy@warmcat.com>
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a copy
7  * of this software and associated documentation files (the "Software"), to
8  * deal in the Software without restriction, including without limitation the
9  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10  * sell copies of the Software, and to permit persons to whom the Software is
11  * furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22  * IN THE SOFTWARE.
23  */
24 
25 #if !defined(__LWS_DISPLAY_SPD1656_SPI_H__)
26 #define __LWS_DISPLAY_SPD1656_SPI_H__
27 
28 typedef struct lws_display_spd1656_spi {
29 
30  lws_display_t disp; /* use lws_display_spd1656_ops to set */
31  const lws_spi_ops_t *spi; /* spi ops */
32 
34 
35  const lws_gpio_ops_t *gpio; /* NULL or gpio ops */
36  _lws_plat_gpio_t reset_gpio; /* if gpio ops, nReset gpio # */
37  _lws_plat_gpio_t busy_gpio; /* if gpio ops, busy gpio # */
38 
39  uint8_t spi_index; /* cs index starting from 0 */
40 
41 } lws_display_spd1656_spi_t;
42 
43 int
44 lws_display_spd1656_spi_init(lws_display_state_t *lds);
45 int
46 lws_display_spd1656_spi_blit(lws_display_state_t *lds, const uint8_t *src,
47  lws_box_t *box, lws_dll2_owner_t *ids);
48 int
49 lws_display_spd1656_spi_power(lws_display_state_t *lds, int state);
50 
51 #define lws_display_spd1656_ops
52  .init = lws_display_spd1656_spi_init,
53  .blit = lws_display_spd1656_spi_blit,
54  .power = lws_display_spd1656_spi_power
55 #endif