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-rw-r--r--drivers/sensors/pmw3360.h85
1 files changed, 85 insertions, 0 deletions
diff --git a/drivers/sensors/pmw3360.h b/drivers/sensors/pmw3360.h
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+/* Copyright 2020 Christopher Courtney, aka Drashna Jael're (@drashna) <drashna@live.com>
+ * Copyright 2019 Sunjun Kim
+ * Copyright 2020 Ploopy Corporation
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "spi_master.h"
+
+#ifndef PMW3360_CPI
+# define PMW3360_CPI 1600
+#endif
+
+#ifndef PMW3360_CLOCK_SPEED
+# define PMW3360_CLOCK_SPEED 70000000
+#endif
+
+#ifndef PMW3360_SPI_LSBFIRST
+# define PMW3360_SPI_LSBFIRST false
+#endif
+
+#ifndef PMW3360_SPI_MODE
+# define PMW3360_SPI_MODE 3
+#endif
+
+#ifndef PMW3360_SPI_DIVISOR
+# ifdef __AVR__
+# define PMW3360_SPI_DIVISOR (F_CPU / PMW3360_CLOCK_SPEED)
+# else
+# define PMW3360_SPI_DIVISOR 64
+# endif
+#endif
+
+#ifndef ROTATIONAL_TRANSFORM_ANGLE
+# define ROTATIONAL_TRANSFORM_ANGLE 0x00
+#endif
+
+#ifndef PMW3360_CS_PIN
+# error "No chip select pin defined -- missing PMW3360_CS_PIN"
+#endif
+
+#ifdef CONSOLE_ENABLE
+void print_byte(uint8_t byte);
+#endif
+
+typedef struct {
+ int8_t motion;
+ bool isMotion; // True if a motion is detected.
+ bool isOnSurface; // True when a chip is on a surface
+ int16_t dx; // displacement on x directions. Unit: Count. (CPI * Count = Inch value)
+ int8_t mdx;
+ int16_t dy; // displacement on y directions.
+ int8_t mdy;
+} report_pmw_t;
+
+
+
+bool spi_start_adv(void);
+void spi_stop_adv(void);
+spi_status_t spi_write_adv(uint8_t reg_addr, uint8_t data);
+uint8_t spi_read_adv(uint8_t reg_addr);
+bool pmw_spi_init(void);
+void pmw_set_cpi(uint16_t cpi);
+uint16_t pmw_get_cpi(void);
+void pmw_upload_firmware(void);
+bool pmw_check_signature(void);
+report_pmw_t pmw_read_burst(void);
+
+
+#define degToRad(angleInDegrees) ((angleInDegrees)*M_PI / 180.0)
+#define radToDeg(angleInRadians) ((angleInRadians)*180.0 / M_PI)
+#define constrain(amt, low, high) ((amt) < (low) ? (low) : ((amt) > (high) ? (high) : (amt)))