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-rw-r--r--keyboards/oddball/pmw/pmw.c226
1 files changed, 0 insertions, 226 deletions
diff --git a/keyboards/oddball/pmw/pmw.c b/keyboards/oddball/pmw/pmw.c
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index 51d6927024..0000000000
--- a/keyboards/oddball/pmw/pmw.c
+++ /dev/null
@@ -1,226 +0,0 @@
-/* Copyright 2020 Alexander Tulloh
- *
- * 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/>.
- */
-
-#include "spi_master.h"
-#include "quantum.h"
-#include "pmw3360_srom_0x04.h"
-#include "pmw.h"
-
-// registers
-#define Product_ID 0x00
-#define Revision_ID 0x01
-#define Motion 0x02
-#define Delta_X_L 0x03
-#define Delta_X_H 0x04
-#define Delta_Y_L 0x05
-#define Delta_Y_H 0x06
-#define SQUAL 0x07
-#define Raw_Data_Sum 0x08
-#define Maximum_Raw_data 0x09
-#define Minimum_Raw_data 0x0A
-#define Shutter_Lower 0x0B
-#define Shutter_Upper 0x0C
-#define Control 0x0D
-#define Config1 0x0F
-#define Config2 0x10
-#define Angle_Tune 0x11
-#define Frame_Capture 0x12
-#define SROM_Enable 0x13
-#define Run_Downshift 0x14
-#define Rest1_Rate_Lower 0x15
-#define Rest1_Rate_Upper 0x16
-#define Rest1_Downshift 0x17
-#define Rest2_Rate_Lower 0x18
-#define Rest2_Rate_Upper 0x19
-#define Rest2_Downshift 0x1A
-#define Rest3_Rate_Lower 0x1B
-#define Rest3_Rate_Upper 0x1C
-#define Observation 0x24
-#define Data_Out_Lower 0x25
-#define Data_Out_Upper 0x26
-#define Raw_Data_Dump 0x29
-#define SROM_ID 0x2A
-#define Min_SQ_Run 0x2B
-#define Raw_Data_Threshold 0x2C
-#define Config5 0x2F
-#define Power_Up_Reset 0x3A
-#define Shutdown 0x3B
-#define Inverse_Product_ID 0x3F
-#define LiftCutoff_Tune3 0x41
-#define Angle_Snap 0x42
-#define LiftCutoff_Tune1 0x4A
-#define Motion_Burst 0x50
-#define LiftCutoff_Tune_Timeout 0x58
-#define LiftCutoff_Tune_Min_Length 0x5A
-#define SROM_Load_Burst 0x62
-#define Lift_Config 0x63
-#define Raw_Data_Burst 0x64
-#define LiftCutoff_Tune2 0x65
-
-#define PMW_CLOCK_SPEED 70000000
-#define MIN_CPI 100
-#define MAX_CPI 12000
-#define CPI_STEP 100
-#define CLAMP_CPI(value) value < MIN_CPI ? MIN_CPI : value > MAX_CPI ? MAX_CPI : value
-#define SPI_MODE 3
-#define SPI_DIVISOR (F_CPU / PMW_CLOCK_SPEED)
-#define US_BETWEEN_WRITES 180
-#define US_BETWEEN_READS 20
-#define US_BEFORE_MOTION 35
-
-#define MSB1 0x80
-
-extern const uint16_t pmw_firmware_length;
-extern const uint8_t pmw_firmware_data[];
-
-void pmw_spi_start(void){
- spi_start(SPI_SS_PIN, false, SPI_MODE, SPI_DIVISOR);
-}
-
-void pmw_write(uint8_t reg_addr, uint8_t data){
-
- pmw_spi_start();
- spi_write(reg_addr | MSB1 );
- spi_write(data);
- spi_stop();
- wait_us(US_BETWEEN_WRITES);
-}
-
-uint8_t pmw_read(uint8_t reg_addr){
-
- pmw_spi_start();
- spi_write(reg_addr & 0x7f );
- uint8_t data = spi_read();
- spi_stop();
- wait_us(US_BETWEEN_READS);
-
- return data;
-}
-
-void pmw_init() {
-
- setPinOutput(SPI_SS_PIN);
-
- spi_init();
-
- // reboot
- pmw_write(Power_Up_Reset, 0x5a);
- wait_ms(50);
-
- // read registers and discard
- pmw_read(Motion);
- pmw_read(Delta_X_L);
- pmw_read(Delta_X_H);
- pmw_read(Delta_Y_L);
- pmw_read(Delta_Y_H);
-
- // upload firmware
-
- // disable rest mode
- pmw_write(Config2, 0x20);
-
- // enable initialisation
- pmw_write(SROM_Enable, 0x1d);
-
- // wait a frame
- wait_ms(10);
-
- // start SROM download
- pmw_write(SROM_Enable, 0x18);
-
- // write the SROM file
-
- pmw_spi_start();
-
- spi_write(SROM_Load_Burst | 0x80);
- wait_us(15);
-
- // send all bytes of the firmware
- unsigned char c;
- for(int i = 0; i < pmw_firmware_length; i++){
- c = (unsigned char)pgm_read_byte(pmw_firmware_data + i);
- spi_write(c);
- wait_us(15);
- }
-
- spi_stop();
- wait_us(US_BETWEEN_WRITES);
-
- // read id
- pmw_read(SROM_ID);
-
- // wired mouse
- pmw_write(Config2, 0x00);
-
- // first motion burst; write anything
- pmw_write(Motion_Burst, 0xFF);
- writePinLow(SPI_SS_PIN);
-}
-
-config_pmw_t pmw_get_config(void) {
- uint8_t config_1 = pmw_read(Config1);
- return (config_pmw_t){ (config_1 & 0xFF) * CPI_STEP };
-}
-
-void pmw_set_config(config_pmw_t config) {
- uint8_t config_1 = (CLAMP_CPI(config.cpi) / CPI_STEP) & 0xFF;
- pmw_write(Config1, config_1);
-}
-
-static int16_t convertDeltaToInt(uint8_t high, uint8_t low){
-
- // join bytes into twos compliment
- uint16_t twos_comp = (high << 8) | low;
-
- // convert twos comp to int
- if (twos_comp & 0x8000)
- return -1 * (~twos_comp + 1);
-
- return twos_comp;
-}
-
-report_pmw_t pmw_get_report(void) {
-
- report_pmw_t report = {0, 0};
-
- pmw_spi_start();
-
- // start burst mode
- spi_write(Motion_Burst & 0x7f);
-
- wait_us(US_BEFORE_MOTION);
-
- uint8_t motion = spi_read();
-
- if(motion & 0x80) {
-
- // clear observation register
- spi_read();
-
- // delta registers
- uint8_t delta_x_l = spi_read();
- uint8_t delta_x_h = spi_read();
- uint8_t delta_y_l = spi_read();
- uint8_t delta_y_h = spi_read();
-
- report.x = convertDeltaToInt(delta_x_h, delta_x_l);
- report.y = convertDeltaToInt(delta_y_h, delta_y_l);
- }
-
- spi_stop();
-
- return report;
-}