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			66 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			66 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/* Copyright 2020 Alexander Tulloh
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation, either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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 */
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#pragma once
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#include <stdint.h>
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#ifndef ADNS9800_CPI
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#    define ADNS9800_CPI 1600
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#endif
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#ifndef ADNS9800_CLOCK_SPEED
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#    define ADNS9800_CLOCK_SPEED 2000000
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#endif
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#ifndef ADNS9800_SPI_LSBFIRST
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#    define ADNS9800_SPI_LSBFIRST false
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#endif
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#ifndef ADNS9800_SPI_MODE
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#    define ADNS9800_SPI_MODE 3
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#endif
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#ifndef ADNS9800_SPI_DIVISOR
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#    ifdef __AVR__
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#        define ADNS9800_SPI_DIVISOR (F_CPU / ADNS9800_CLOCK_SPEED)
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#    else
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#        define ADNS9800_SPI_DIVISOR 64
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#    endif
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#endif
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#ifndef ADNS9800_CS_PIN
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#    error "No chip select pin defined -- missing ADNS9800_CS_PIN"
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#endif
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typedef struct {
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    /* 200 - 8200 CPI supported */
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    uint16_t cpi;
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} config_adns9800_t;
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typedef struct {
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    int16_t x;
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    int16_t y;
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} report_adns9800_t;
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void              adns9800_init(void);
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config_adns9800_t adns9800_get_config(void);
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void              adns9800_set_config(config_adns9800_t);
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uint16_t          adns9800_get_cpi(void);
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void              adns9800_set_cpi(uint16_t cpi);
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/* Reads and clears the current delta values on the ADNS sensor */
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report_adns9800_t adns9800_get_report(void);
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