65 lines
2.3 KiB
C
65 lines
2.3 KiB
C
/*
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* lws abstract display implementation for ssd1306 on i2c
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*
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* Copyright (C) 2019 - 2022 Andy Green <andy@warmcat.com>
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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
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell 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
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#if !defined(__LWS_DISPLAY_SSD1306_I2C_H__)
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#define __LWS_DISPLAY_SSD1306_I2C_H__
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/*
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* D/C# pin on SSD1306 sets the I2C device ads
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* from these two options (7-bit address)
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*/
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#define SSD1306_I2C7_ADS1 0x3c
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#define SSD1306_I2C7_ADS2 0x3d
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typedef struct lws_display_ssd1306 {
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lws_display_t disp; /* use lws_display_ssd1306_ops to set ops */
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const lws_i2c_ops_t *i2c; /* i2c ops */
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lws_display_completion_t cb;
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const lws_gpio_ops_t *gpio; /* NULL or gpio ops */
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_lws_plat_gpio_t reset_gpio; /* if gpio ops, nReset gpio # */
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uint8_t i2c7_address; /* one of SSD1306_I2C7_ADS... */
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} lws_display_ssd1306_t;
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int
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lws_display_ssd1306_i2c_init(lws_display_state_t *lds);
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int
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lws_display_ssd1306_i2c_contrast(lws_display_state_t *lds, uint8_t b);
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int
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lws_display_ssd1306_i2c_blit(lws_display_state_t *lds, const uint8_t *src,
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lws_box_t *box, lws_dll2_owner_t *ids);
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int
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lws_display_ssd1306_i2c_power(lws_display_state_t *lds, int state);
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#define lws_display_ssd1306_ops \
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.init = lws_display_ssd1306_i2c_init, \
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.contrast = lws_display_ssd1306_i2c_contrast, \
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.blit = lws_display_ssd1306_i2c_blit, \
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.power = lws_display_ssd1306_i2c_power
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#endif
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