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1/* Copyright 2020 Christopher Courtney, aka Drashna Jael're (@drashna) <drashna@live.com>
2 * Copyright 2019 Sunjun Kim
3 * Copyright 2020 Ploopy Corporation
4 *
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18
19#pragma once
20
21#include "spi_master.h"
22
23// Registers
24#define REG_Product_ID 0x00
25#define REG_Revision_ID 0x01
26#define REG_Motion 0x02
27#define REG_Delta_X_L 0x03
28#define REG_Delta_X_H 0x04
29#define REG_Delta_Y_L 0x05
30#define REG_Delta_Y_H 0x06
31#define REG_SQUAL 0x07
32#define REG_Raw_Data_Sum 0x08
33#define REG_Maximum_Raw_data 0x09
34#define REG_Minimum_Raw_data 0x0A
35#define REG_Shutter_Lower 0x0B
36#define REG_Shutter_Upper 0x0C
37#define REG_Control 0x0D
38#define REG_Config1 0x0F
39#define REG_Config2 0x10
40#define REG_Angle_Tune 0x11
41#define REG_Frame_Capture 0x12
42#define REG_SROM_Enable 0x13
43#define REG_Run_Downshift 0x14
44#define REG_Rest1_Rate_Lower 0x15
45#define REG_Rest1_Rate_Upper 0x16
46#define REG_Rest1_Downshift 0x17
47#define REG_Rest2_Rate_Lower 0x18
48#define REG_Rest2_Rate_Upper 0x19
49#define REG_Rest2_Downshift 0x1A
50#define REG_Rest3_Rate_Lower 0x1B
51#define REG_Rest3_Rate_Upper 0x1C
52#define REG_Observation 0x24
53#define REG_Data_Out_Lower 0x25
54#define REG_Data_Out_Upper 0x26
55#define REG_Raw_Data_Dump 0x29
56#define REG_SROM_ID 0x2A
57#define REG_Min_SQ_Run 0x2B
58#define REG_Raw_Data_Threshold 0x2C
59#define REG_Config5 0x2F
60#define REG_Power_Up_Reset 0x3A
61#define REG_Shutdown 0x3B
62#define REG_Inverse_Product_ID 0x3F
63#define REG_LiftCutoff_Tune3 0x41
64#define REG_Angle_Snap 0x42
65#define REG_LiftCutoff_Tune1 0x4A
66#define REG_Motion_Burst 0x50
67#define REG_LiftCutoff_Tune_Timeout 0x58
68#define REG_LiftCutoff_Tune_Min_Length 0x5A
69#define REG_SROM_Load_Burst 0x62
70#define REG_Lift_Config 0x63
71#define REG_Raw_Data_Burst 0x64
72#define REG_LiftCutoff_Tune2 0x65
73
74#ifdef CONSOLE_ENABLE
75void print_byte(uint8_t byte);
76#endif
77
78typedef struct {
79 int8_t motion;
80 bool isMotion; // True if a motion is detected.
81 bool isOnSurface; // True when a chip is on a surface
82 int16_t dx; // displacement on x directions. Unit: Count. (CPI * Count = Inch value)
83 int8_t mdx;
84 int16_t dy; // displacement on y directions.
85 int8_t mdy;
86} report_pmw_t;
87
88
89
90bool spi_start_adv(void);
91void spi_stop_adv(void);
92spi_status_t spi_write_adv(uint8_t reg_addr, uint8_t data);
93uint8_t spi_read_adv(uint8_t reg_addr);
94bool pmw_spi_init(void);
95void pmw_set_cpi(uint16_t cpi);
96void pmw_upload_firmware(void);
97bool pmw_check_signature(void);
98report_pmw_t pmw_read_burst(void);
99
100
101#define degToRad(angleInDegrees) ((angleInDegrees)*M_PI / 180.0)
102#define radToDeg(angleInRadians) ((angleInRadians)*180.0 / M_PI)
103#define constrain(amt, low, high) ((amt) < (low) ? (low) : ((amt) > (high) ? (high) : (amt)))