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Diffstat (limited to 'keyboards/ploopyco/pmw3360.c')
| -rw-r--r-- | keyboards/ploopyco/pmw3360.c | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/keyboards/ploopyco/pmw3360.c b/keyboards/ploopyco/pmw3360.c deleted file mode 100644 index 5f9f72a9ec..0000000000 --- a/keyboards/ploopyco/pmw3360.c +++ /dev/null @@ -1,218 +0,0 @@ -/* 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/>. - */ - -#include "wait.h" -#include "debug.h" -#include "print.h" -#include "pmw3360.h" -#include "pmw3360_firmware.h" - -bool _inBurst = false; - -#ifndef PMW_CPI -# define PMW_CPI 1600 -#endif -#ifndef SPI_DIVISOR -# define SPI_DIVISOR 2 -#endif -#ifndef ROTATIONAL_TRANSFORM_ANGLE -# define ROTATIONAL_TRANSFORM_ANGLE 0x00 -#endif - -void print_byte(uint8_t byte) { dprintf("%c%c%c%c%c%c%c%c|", (byte & 0x80 ? '1' : '0'), (byte & 0x40 ? '1' : '0'), (byte & 0x20 ? '1' : '0'), (byte & 0x10 ? '1' : '0'), (byte & 0x08 ? '1' : '0'), (byte & 0x04 ? '1' : '0'), (byte & 0x02 ? '1' : '0'), (byte & 0x01 ? '1' : '0')); } - - -bool spi_start_adv(void) { - bool status = spi_start(SPI_SS_PIN, false, 3, SPI_DIVISOR); - wait_us(1); - return status; -} - -void spi_stop_adv(void) { - wait_us(1); - spi_stop(); -} - -spi_status_t spi_write_adv(uint8_t reg_addr, uint8_t data) { - if (reg_addr != REG_Motion_Burst) { - _inBurst = false; - } - - spi_start_adv(); - // send address of the register, with MSBit = 1 to indicate it's a write - spi_status_t status = spi_write(reg_addr | 0x80); - status = spi_write(data); - - // tSCLK-NCS for write operation - wait_us(20); - - // tSWW/tSWR (=120us) minus tSCLK-NCS. Could be shortened, but is looks like a safe lower bound - wait_us(100); - spi_stop(); - return status; -} - -uint8_t spi_read_adv(uint8_t reg_addr) { - spi_start_adv(); - // send adress of the register, with MSBit = 0 to indicate it's a read - spi_write(reg_addr & 0x7f); - - uint8_t data = spi_read(); - - // tSCLK-NCS for read operation is 120ns - wait_us(1); - - // tSRW/tSRR (=20us) minus tSCLK-NCS - wait_us(19); - - spi_stop(); - return data; -} - -void pmw_set_cpi(uint16_t cpi) { - int cpival = constrain((cpi / 100) - 1, 0, 0x77); // limits to 0--119 - - spi_start_adv(); - spi_write_adv(REG_Config1, cpival); - spi_stop(); -} - -bool pmw_spi_init(void) { - spi_init(); - _inBurst = false; - - spi_stop(); - spi_start_adv(); - spi_stop(); - - spi_write_adv(REG_Shutdown, 0xb6); // Shutdown first - wait_ms(300); - - spi_start_adv(); - wait_us(40); - spi_stop_adv(); - wait_us(40); - - spi_write_adv(REG_Power_Up_Reset, 0x5a); - wait_ms(50); - - spi_read_adv(REG_Motion); - spi_read_adv(REG_Delta_X_L); - spi_read_adv(REG_Delta_X_H); - spi_read_adv(REG_Delta_Y_L); - spi_read_adv(REG_Delta_Y_H); - - pmw_upload_firmware(); - - spi_stop_adv(); - - wait_ms(10); - pmw_set_cpi(PMW_CPI); - - wait_ms(1); - - return pmw_check_signature(); -} - -void pmw_upload_firmware(void) { - spi_write_adv(REG_Config2, 0x00); - - spi_write_adv(REG_Angle_Tune, constrain(ROTATIONAL_TRANSFORM_ANGLE, -30, 30)); - - spi_write_adv(REG_SROM_Enable, 0x1d); - - wait_ms(10); - - spi_write_adv(REG_SROM_Enable, 0x18); - - spi_start_adv(); - spi_write(REG_SROM_Load_Burst | 0x80); - wait_us(15); - - unsigned char c; - for (int i = 0; i < firmware_length; i++) { - c = (unsigned char)pgm_read_byte(firmware_data + i); - spi_write(c); - wait_us(15); - } - wait_us(200); - - spi_read_adv(REG_SROM_ID); - - spi_write_adv(REG_Config2, 0x00); - - spi_stop(); - wait_ms(10); -} - -bool pmw_check_signature(void) { - uint8_t pid = spi_read_adv(REG_Product_ID); - uint8_t iv_pid = spi_read_adv(REG_Inverse_Product_ID); - uint8_t SROM_ver = spi_read_adv(REG_SROM_ID); - return (pid == 0x42 && iv_pid == 0xBD && SROM_ver == 0x04); // signature for SROM 0x04 -} - -report_pmw_t pmw_read_burst(void) { - if (!_inBurst) { - dprintf("burst on"); - spi_write_adv(REG_Motion_Burst, 0x00); - _inBurst = true; - } - - spi_start_adv(); - spi_write(REG_Motion_Burst); - wait_us(35); // waits for tSRAD - - report_pmw_t data; - data.motion = 0; - data.dx = 0; - data.mdx = 0; - data.dy = 0; - data.mdx = 0; - - data.motion = spi_read(); - spi_write(0x00); // skip Observation - data.dx = spi_read(); - data.mdx = spi_read(); - data.dy = spi_read(); - data.mdy = spi_read(); - - spi_stop(); - - print_byte(data.motion); - print_byte(data.dx); - print_byte(data.mdx); - print_byte(data.dy); - print_byte(data.mdy); - dprintf("\n"); - - data.isMotion = (data.motion & 0x80) != 0; - data.isOnSurface = (data.motion & 0x08) == 0; - data.dx |= (data.mdx << 8); - data.dx = data.dx * -1; - data.dy |= (data.mdy << 8); - data.dy = data.dy * -1; - - spi_stop(); - - if (data.motion & 0b111) { // panic recovery, sometimes burst mode works weird. - _inBurst = false; - } - - return data; -} |