diff options
33 files changed, 4430 insertions, 678 deletions
diff --git a/keyboards/oddball/adns.c b/keyboards/oddball/adns.c deleted file mode 100644 index 4582be1f2c..0000000000 --- a/keyboards/oddball/adns.c +++ /dev/null @@ -1,270 +0,0 @@ -#include <avr/io.h> -#include <avr/interrupt.h> -#include "quantum.h" -#include "pointing_device.h" -#include "adns9800_srom_A4.h" -#include <LUFA/Drivers/Peripheral/SPI.h> - -// registers -#define REG_Product_ID 0x00 -#define REG_Revision_ID 0x01 -#define REG_Motion 0x02 -#define REG_Delta_X_L 0x03 -#define REG_Delta_X_H 0x04 -#define REG_Delta_Y_L 0x05 -#define REG_Delta_Y_H 0x06 -#define REG_SQUAL 0x07 -#define REG_Pixel_Sum 0x08 -#define REG_Maximum_Pixel 0x09 -#define REG_Minimum_Pixel 0x0a -#define REG_Shutter_Lower 0x0b -#define REG_Shutter_Upper 0x0c -#define REG_Frame_Period_Lower 0x0d -#define REG_Frame_Period_Upper 0x0e -#define REG_Configuration_I 0x0f -#define REG_Configuration_II 0x10 -#define REG_Frame_Capture 0x12 -#define REG_SROM_Enable 0x13 -#define REG_Run_Downshift 0x14 -#define REG_Rest1_Rate 0x15 -#define REG_Rest1_Downshift 0x16 -#define REG_Rest2_Rate 0x17 -#define REG_Rest2_Downshift 0x18 -#define REG_Rest3_Rate 0x19 -#define REG_Frame_Period_Max_Bound_Lower 0x1a -#define REG_Frame_Period_Max_Bound_Upper 0x1b -#define REG_Frame_Period_Min_Bound_Lower 0x1c -#define REG_Frame_Period_Min_Bound_Upper 0x1d -#define REG_Shutter_Max_Bound_Lower 0x1e -#define REG_Shutter_Max_Bound_Upper 0x1f -#define REG_LASER_CTRL0 0x20 -#define REG_Observation 0x24 -#define REG_Data_Out_Lower 0x25 -#define REG_Data_Out_Upper 0x26 -#define REG_SROM_ID 0x2a -#define REG_Lift_Detection_Thr 0x2e -#define REG_Configuration_V 0x2f -#define REG_Configuration_IV 0x39 -#define REG_Power_Up_Reset 0x3a -#define REG_Shutdown 0x3b -#define REG_Inverse_Product_ID 0x3f -#define REG_Motion_Burst 0x50 -#define REG_SROM_Load_Burst 0x62 -#define REG_Pixel_Burst 0x64 - -// pins -#define NCS 0 - -extern const uint16_t firmware_length; -extern const uint8_t firmware_data[]; - -enum motion_burst_property{ - motion = 0, - observation, - delta_x_l, - delta_x_h, - delta_y_l, - delta_y_h, - squal, - pixel_sum, - maximum_pixel, - minimum_pixel, - shutter_upper, - shutter_lower, - frame_period_upper, - frame_period_lower, - end_data -}; - -// used to track the motion delta between updates -volatile int32_t delta_x; -volatile int32_t delta_y; - -void adns_begin(void){ - PORTB &= ~ (1 << NCS); -} - -void adns_end(void){ - PORTB |= (1 << NCS); -} - -void adns_write(uint8_t reg_addr, uint8_t data){ - - adns_begin(); - - //send address of the register, with MSBit = 1 to indicate it's a write - SPI_TransferByte(reg_addr | 0x80 ); - SPI_TransferByte(data); - - // tSCLK-NCS for write operation - wait_us(20); - - adns_end(); - - // tSWW/tSWR (=120us) minus tSCLK-NCS. Could be shortened, but is looks like a safe lower bound - wait_us(100); -} - -uint8_t adns_read(uint8_t reg_addr){ - - adns_begin(); - - // send adress of the register, with MSBit = 0 to indicate it's a read - SPI_TransferByte(reg_addr & 0x7f ); - uint8_t data = SPI_TransferByte(0); - - // tSCLK-NCS for read operation is 120ns - wait_us(1); - - adns_end(); - - // tSRW/tSRR (=20us) minus tSCLK-NCS - wait_us(19); - - return data; -} - -void pointing_device_init(void) { - - if(!is_keyboard_master()) - return; - - // interrupt 2 - EICRA &= ~(1 << 4); - EICRA |= (1 << 5); - EIMSK |= (1<<INT2); - - // mode 3 - SPI_Init( - SPI_SPEED_FCPU_DIV_8 | - SPI_ORDER_MSB_FIRST | - SPI_SCK_LEAD_FALLING | - SPI_SAMPLE_TRAILING | - SPI_MODE_MASTER); - - // set B0 output - DDRB |= (1 << 0); - - // reset serial port - adns_end(); - adns_begin(); - adns_end(); - - // reboot - adns_write(REG_Power_Up_Reset, 0x5a); - wait_ms(50); - - // read registers and discard - adns_read(REG_Motion); - adns_read(REG_Delta_X_L); - adns_read(REG_Delta_X_H); - adns_read(REG_Delta_Y_L); - adns_read(REG_Delta_Y_H); - - // upload firmware - - // set the configuration_IV register in 3k firmware mode - // bit 1 = 1 for 3k mode, other bits are reserved - adns_write(REG_Configuration_IV, 0x02); - - // write 0x1d in SROM_enable reg for initializing - adns_write(REG_SROM_Enable, 0x1d); - - // wait for more than one frame period - // assume that the frame rate is as low as 100fps... even if it should never be that low - wait_ms(10); - - // write 0x18 to SROM_enable to start SROM download - adns_write(REG_SROM_Enable, 0x18); - - // write the SROM file (=firmware data) - adns_begin(); - - // write burst destination adress - SPI_TransferByte(REG_SROM_Load_Burst | 0x80); - wait_us(15); - - // send all bytes of the firmware - unsigned char c; - for(int i = 0; i < firmware_length; i++){ - c = (unsigned char)pgm_read_byte(firmware_data + i); - SPI_TransferByte(c); - wait_us(15); - } - - adns_end(); - - wait_ms(10); - - // enable laser(bit 0 = 0b), in normal mode (bits 3,2,1 = 000b) - // reading the actual value of the register is important because the real - // default value is different from what is said in the datasheet, and if you - // change the reserved bytes (like by writing 0x00...) it would not work. - uint8_t laser_ctrl0 = adns_read(REG_LASER_CTRL0); - adns_write(REG_LASER_CTRL0, laser_ctrl0 & 0xf0); - - wait_ms(1); - - // set the configuration_I register to set the CPI - // 0x01 = 50, minimum - // 0x44 = 3400, default - // 0x8e = 7100 - // 0xA4 = 8200, maximum - adns_write(REG_Configuration_I, 0x04); - - wait_ms(100); -} - -void pointing_device_task(void) { - - if(!is_keyboard_master()) - return; - - report_mouse_t report = pointing_device_get_report(); - - // clamp deltas from -127 to 127 - report.x = delta_x < -127 ? 127 : delta_x > 127 ? 127 : delta_x; - report.x = -report.x; - - report.y = delta_y < -127 ? 127 : delta_y > 127 ? 127 : delta_y; - - // reset deltas - delta_x = 0; - delta_y = 0; - - pointing_device_set_report(report); - pointing_device_send(); -} - -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 ^ 0xffff) + 1); - - return twos_comp; -} - -ISR(INT2_vect) { - // called on interrupt 2 when sensed motion - // copy burst data from the respective registers - - adns_begin(); - - // send adress of the register, with MSBit = 1 to indicate it's a write - SPI_TransferByte(REG_Motion_Burst & 0x7f); - - uint8_t burst_data[pixel_sum]; - - for (int i = 0; i < pixel_sum; ++i) { - burst_data[i] = SPI_TransferByte(0); - } - - delta_x += convertDeltaToInt(burst_data[delta_x_h], burst_data[delta_x_l]); - delta_y += convertDeltaToInt(burst_data[delta_y_h], burst_data[delta_y_l]); - - adns_end(); -} diff --git a/keyboards/oddball/adns/adns.c b/keyboards/oddball/adns/adns.c new file mode 100644 index 0000000000..9338808ff7 --- /dev/null +++ b/keyboards/oddball/adns/adns.c @@ -0,0 +1,219 @@ +/* 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 "adns9800_srom_A6.h" +#include "adns.h" + +// registers +#define REG_Product_ID 0x00 +#define REG_Revision_ID 0x01 +#define REG_Motion 0x02 +#define REG_Delta_X_L 0x03 +#define REG_Delta_X_H 0x04 +#define REG_Delta_Y_L 0x05 +#define REG_Delta_Y_H 0x06 +#define REG_SQUAL 0x07 +#define REG_Pixel_Sum 0x08 +#define REG_Maximum_Pixel 0x09 +#define REG_Minimum_Pixel 0x0a +#define REG_Shutter_Lower 0x0b +#define REG_Shutter_Upper 0x0c +#define REG_Frame_Period_Lower 0x0d +#define REG_Frame_Period_Upper 0x0e +#define REG_Configuration_I 0x0f +#define REG_Configuration_II 0x10 +#define REG_Frame_Capture 0x12 +#define REG_SROM_Enable 0x13 +#define REG_Run_Downshift 0x14 +#define REG_Rest1_Rate 0x15 +#define REG_Rest1_Downshift 0x16 +#define REG_Rest2_Rate 0x17 +#define REG_Rest2_Downshift 0x18 +#define REG_Rest3_Rate 0x19 +#define REG_Frame_Period_Max_Bound_Lower 0x1a +#define REG_Frame_Period_Max_Bound_Upper 0x1b +#define REG_Frame_Period_Min_Bound_Lower 0x1c +#define REG_Frame_Period_Min_Bound_Upper 0x1d +#define REG_Shutter_Max_Bound_Lower 0x1e +#define REG_Shutter_Max_Bound_Upper 0x1f +#define REG_LASER_CTRL0 0x20 +#define REG_Observation 0x24 +#define REG_Data_Out_Lower 0x25 +#define REG_Data_Out_Upper 0x26 +#define REG_SROM_ID 0x2a +#define REG_Lift_Detection_Thr 0x2e +#define REG_Configuration_V 0x2f +#define REG_Configuration_IV 0x39 +#define REG_Power_Up_Reset 0x3a +#define REG_Shutdown 0x3b +#define REG_Inverse_Product_ID 0x3f +#define REG_Motion_Burst 0x50 +#define REG_SROM_Load_Burst 0x62 +#define REG_Pixel_Burst 0x64 + +#define ADNS_CLOCK_SPEED 2000000 +#define MIN_CPI 200 +#define MAX_CPI 8200 +#define CPI_STEP 200 +#define CLAMP_CPI(value) value < MIN_CPI ? MIN_CPI : value > MAX_CPI ? MAX_CPI : value +#define SPI_MODE 3 +#define SPI_DIVISOR (F_CPU / ADNS_CLOCK_SPEED) +#define US_BETWEEN_WRITES 120 +#define US_BETWEEN_READS 20 +#define US_BEFORE_MOTION 100 +#define MSB1 0x80 + +extern const uint16_t adns_firmware_length; +extern const uint8_t adns_firmware_data[]; + +void adns_spi_start(void){ + spi_start(SPI_SS_PIN, false, SPI_MODE, SPI_DIVISOR); +} + +void adns_write(uint8_t reg_addr, uint8_t data){ + + adns_spi_start(); + spi_write(reg_addr | MSB1); + spi_write(data); + spi_stop(); + wait_us(US_BETWEEN_WRITES); +} + +uint8_t adns_read(uint8_t reg_addr){ + + adns_spi_start(); + spi_write(reg_addr & 0x7f ); + uint8_t data = spi_read(); + spi_stop(); + wait_us(US_BETWEEN_READS); + + return data; +} + +void adns_init() { + + setPinOutput(SPI_SS_PIN); + + spi_init(); + + // reboot + adns_write(REG_Power_Up_Reset, 0x5a); + wait_ms(50); + + // read registers and discard + adns_read(REG_Motion); + adns_read(REG_Delta_X_L); + adns_read(REG_Delta_X_H); + adns_read(REG_Delta_Y_L); + adns_read(REG_Delta_Y_H); + + // upload firmware + + // 3k firmware mode + adns_write(REG_Configuration_IV, 0x02); + + // enable initialisation + adns_write(REG_SROM_Enable, 0x1d); + + // wait a frame + wait_ms(10); + + // start SROM download + adns_write(REG_SROM_Enable, 0x18); + + // write the SROM file + + adns_spi_start(); + + spi_write(REG_SROM_Load_Burst | 0x80); + wait_us(15); + + // send all bytes of the firmware + unsigned char c; + for(int i = 0; i < adns_firmware_length; i++){ + c = (unsigned char)pgm_read_byte(adns_firmware_data + i); + spi_write(c); + wait_us(15); + } + + spi_stop(); + + wait_ms(10); + + // enable laser + uint8_t laser_ctrl0 = adns_read(REG_LASER_CTRL0); + adns_write(REG_LASER_CTRL0, laser_ctrl0 & 0xf0); +} + +config_adns_t adns_get_config(void) { + uint8_t config_1 = adns_read(REG_Configuration_I); + return (config_adns_t){ (config_1 & 0xFF) * CPI_STEP }; +} + +void adns_set_config(config_adns_t config) { + uint8_t config_1 = (CLAMP_CPI(config.cpi) / CPI_STEP) & 0xFF; + adns_write(REG_Configuration_I, 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_adns_t adns_get_report(void) { + + report_adns_t report = {0, 0}; + + adns_spi_start(); + + // start burst mode + spi_write(REG_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); + } + + // clear residual motion + spi_write(REG_Motion & 0x7f); + + spi_stop(); + + return report; +} diff --git a/keyboards/oddball/adns/adns.h b/keyboards/oddball/adns/adns.h new file mode 100644 index 0000000000..2f50b8f1be --- /dev/null +++ b/keyboards/oddball/adns/adns.h @@ -0,0 +1,35 @@ +/* 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/>. + */ + +#pragma once + +#include <stdint.h> + +typedef struct { + /* 200 - 8200 CPI supported */ + uint16_t cpi; +} config_adns_t; + +typedef struct { + int16_t x; + int16_t y; +} report_adns_t; + +void adns_init(void); +config_adns_t adns_get_config(void); +void adns_set_config(config_adns_t); +/* Reads and clears the current delta values on the ADNS sensor */ +report_adns_t adns_get_report(void); diff --git a/keyboards/oddball/adns/adns9800_srom_A6.h b/keyboards/oddball/adns/adns9800_srom_A6.h new file mode 100644 index 0000000000..f5b3abeb62 --- /dev/null +++ b/keyboards/oddball/adns/adns9800_srom_A6.h @@ -0,0 +1,3078 @@ +#pragma once + +#include "progmem.h" + +const uint16_t adns_firmware_length = 3070; + +const uint8_t adns_firmware_data[] PROGMEM = { +0x03, +0xa6, +0x68, +0x1e, +0x7d, +0x10, +0x7e, +0x7e, +0x5f, +0x1c, +0xb8, +0xf2, +0x47, +0x0c, +0x7b, +0x74, +0x4b, +0x14, +0x8b, +0x75, +0x66, +0x51, +0x0b, +0x8c, +0x76, +0x74, +0x4b, 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