From c75386dbbb2def19610dcbd83b5edf27e724522e Mon Sep 17 00:00:00 2001 From: Nicholas G Date: Tue, 6 Jul 2021 21:57:25 -0400 Subject: [PATCH] HID LEDs with reactive fallback, added License, changed switch and led pins --- LICENSE | 674 +++++++++++++++++++++++++++++ README.md | 10 +- build_uf2/Pico_Game_Controller.uf2 | Bin 69632 -> 70144 bytes src/pico_game_controller.c | 83 ++-- src/usb_descriptors.h | 7 +- 5 files changed, 737 insertions(+), 37 deletions(-) create mode 100644 LICENSE diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..f288702 --- /dev/null +++ b/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/README.md b/README.md index cae5ff5..87b69c2 100644 --- a/README.md +++ b/README.md @@ -5,16 +5,14 @@ WIP code for a rhythm game controller using a Raspberry Pi Pico. Intended for S Currently working/fixed: - Gamepad mode - untested on EAC - default boot mode - Keyboard & Mouse Mode - limited to 6KRO - hold btn-a to enter kb mode -- Reactive LEDs (KB/Mouse Mode) +- HID LEDs with Reactive LED fallback - untested - sdvx/iidx spoof - untested on EAC - 1000hz polling - Fix 0-~71% encoder rollover in gamepad mode, uint32 max val isn't divisible evenly by ppr*4 for joystick - thanks friends +- Switch and LED pins are now staggered for easier wiring TODO: -- HID leds - create led func to use incoming light data -- Reactive LED fallback if no HID info - Store last mode in flash memory https://www.raspberrypi.org/forums/viewtopic.php?t=305570 -- debounce - nkro - -Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. +- debounce +- split input updating into pi pico's second core? diff --git a/build_uf2/Pico_Game_Controller.uf2 b/build_uf2/Pico_Game_Controller.uf2 index 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TW&x+)J;&jDuq=E1yQ=>IM3=S4 diff --git a/src/pico_game_controller.c b/src/pico_game_controller.c index ba21cfe..8f93b73 100644 --- a/src/pico_game_controller.c +++ b/src/pico_game_controller.c @@ -24,14 +24,17 @@ #define ENC_PPR 600 // Encoder PPR #define ENC_PULSE (ENC_PPR * 4) // 4 pulses per PPR #define ENC_ROLLOVER (ENC_PULSE * 2) // Delta Rollover threshold +#define REACTIVE_TIMEOUT_MAX 1000 // Cycles before HID falls back to reactive // MODIFY KEYBINDS HERE, MAKE SURE LENGTHS MATCH SW_GPIO_SIZE const uint8_t SW_KEYCODE[] = {HID_KEY_D, HID_KEY_F, HID_KEY_J, HID_KEY_K, HID_KEY_C, HID_KEY_M, HID_KEY_A, HID_KEY_B, HID_KEY_1, HID_KEY_C, HID_KEY_D}; -const uint8_t SW_GPIO[] = {4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}; +const uint8_t SW_GPIO[] = { + 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 27, +}; const uint8_t LED_GPIO[] = { - 15, 16, 17, 18, 19, 20, 21, 22, 26, 27, 28, + 5, 7, 9, 11, 13, 15, 17, 19, 21, 26, 28, }; const uint8_t ENC_GPIO[] = {0, 2}; // L_ENC(0, 1); R_ENC(2, 3) @@ -45,21 +48,45 @@ bool sw_val[SW_GPIO_SIZE]; bool prev_sw_val[SW_GPIO_SIZE]; bool sw_changed; +bool leds_changed; +unsigned long reactive_timeout_count = REACTIVE_TIMEOUT_MAX; + +void (*loop_mode)(); + +struct lights_report { + uint8_t buttons[11]; +} lights_report; + +/** + * HID/Reactive Lights + **/ +void update_lights() { + if (leds_changed) { + for (int i = 0; i < SW_GPIO_SIZE; i++) { + if (reactive_timeout_count >= REACTIVE_TIMEOUT_MAX) { + if (sw_val[i]) { + gpio_put(LED_GPIO[i], 1); + } else { + gpio_put(LED_GPIO[i], 0); + } + } else { + if (lights_report.buttons[i] == 0) { + gpio_put(LED_GPIO[i], 0); + } else { + gpio_put(LED_GPIO[i], 1); + } + } + } + leds_changed = false; + } +} + struct report { uint16_t buttons; uint8_t joy0; uint8_t joy1; } report; -union { - struct { - uint8_t buttons[16]; - } lights; - uint8_t raw[16]; -} light_data; - -void (*loop_mode)(); - /** * Gamepad Mode **/ @@ -83,8 +110,8 @@ void joy_mode() { for (int i = 0; i < ENC_GPIO_SIZE; i++) { int delta; int changeType; // -1 for negative 1 for positive - if (enc_val[i] > prev_enc_val[i]) { // if the new value is bigger its a - // positive change + if (enc_val[i] > prev_enc_val[i]) { // if the new value is bigger its + // a positive change delta = enc_val[i] - prev_enc_val[i]; changeType = 1; } else { // otherwise its a negative change @@ -94,10 +121,9 @@ void joy_mode() { // Overflow / Underflow if (delta > ENC_ROLLOVER) { // Reverse the change type due to overflow / underflow - changeType = changeType * -1; - delta = - UINT32_MAX - delta + - 1; // this should give us how much we overflowed / underflowed by + changeType *= -1; + delta = UINT32_MAX - delta + 1; // this should give us how much we + // overflowed / underflowed by } cur_enc_val[i] = cur_enc_val[i] + (delta * changeType); @@ -164,8 +190,8 @@ void key_mode() { int delta[ENC_GPIO_SIZE] = {0}; for (int i = 0; i < ENC_GPIO_SIZE; i++) { int changeType; // -1 for negative 1 for positive - if (enc_val[i] > prev_enc_val[i]) { // if the new value is bigger its a - // positive change + if (enc_val[i] > prev_enc_val[i]) { // if the new value is bigger its + // a positive change delta[i] = enc_val[i] - prev_enc_val[i]; changeType = 1; } else { // otherwise its a negative change @@ -175,7 +201,7 @@ void key_mode() { // Overflow / Underflow if (delta[i] > ENC_ROLLOVER) { // Reverse the change type due to overflow / underflow - changeType = changeType * -1; + changeType *= -1; delta[i] = UINT32_MAX - delta[i] + 1; // this should give us how much we // overflowed / underflowed by @@ -211,6 +237,8 @@ void update_inputs() { sw_changed = true; } } + // Update LEDs if in reactive mode + if (reactive_timeout_count >= REACTIVE_TIMEOUT_MAX) leds_changed = true; } /** @@ -284,6 +312,7 @@ void init() { // Set listener bools enc_changed = false; sw_changed = false; + leds_changed = false; // Joy/KB Mode Switching if (gpio_get(SW_GPIO[0])) { @@ -305,6 +334,7 @@ int main(void) { tud_task(); // tinyusb device task update_inputs(); loop_mode(); + update_lights(); } return 0; @@ -328,15 +358,14 @@ uint16_t tud_hid_get_report_cb(uint8_t report_id, hid_report_type_t report_type, // received data on OUT endpoint ( Report ID = 0, Type = 0 ) void tud_hid_set_report_cb(uint8_t report_id, hid_report_type_t report_type, uint8_t const *buffer, uint16_t bufsize) { - if (report_id == REPORT_ID_LIGHTS && report_type == HID_REPORT_TYPE_OUTPUT && - buffer[0] == 2 && bufsize >= sizeof(light_data)) // light data + if (report_id == 2 && report_type == HID_REPORT_TYPE_OUTPUT && + buffer[0] == 2 && bufsize >= sizeof(lights_report)) // light data { size_t i = 0; - for (i; i < sizeof(light_data); i++) { - light_data.raw[i] = buffer[i + 1]; + for (i; i < sizeof(lights_report); i++) { + lights_report.buttons[i] = buffer[i + 1]; } + reactive_timeout_count = 0; + leds_changed = true; } - - // echo back anything we received from host - tud_hid_report(0, buffer, bufsize); } diff --git a/src/usb_descriptors.h b/src/usb_descriptors.h index cd52627..b3f8762 100644 --- a/src/usb_descriptors.h +++ b/src/usb_descriptors.h @@ -14,8 +14,7 @@ enum { #endif /* USB_DESCRIPTORS_H_ */ // Gamepad Report Descriptor Template - Based off Drewol/rp2040-gamecon -// with 16 buttons and 2 joysticks with following layout -// 11 Button Map (2 bytes) | X | Y +// 11 Button Map | X | Y #define GAMECON_REPORT_DESC_GAMEPAD(...) \ HID_USAGE_PAGE(HID_USAGE_PAGE_DESKTOP), \ HID_USAGE(HID_USAGE_DESKTOP_GAMEPAD), \ @@ -32,14 +31,14 @@ enum { HID_USAGE(HID_USAGE_DESKTOP_Y), HID_REPORT_COUNT(2), HID_REPORT_SIZE(8), \ HID_INPUT(HID_DATA | HID_VARIABLE | HID_ABSOLUTE), HID_COLLECTION_END -// 11 Light Map (7 Bytes) +// 11 Light Map #define GAMECON_REPORT_DESC_LIGHTS(...) \ HID_USAGE_PAGE(HID_USAGE_PAGE_DESKTOP), HID_USAGE(0x00), \ HID_COLLECTION(HID_COLLECTION_APPLICATION), \ __VA_ARGS__ HID_REPORT_COUNT(11), /*11 button lights*/ \ HID_REPORT_SIZE(8), HID_LOGICAL_MIN(0x00), HID_LOGICAL_MAX_N(0x00ff, 2), \ HID_USAGE_PAGE(HID_USAGE_PAGE_ORDINAL), HID_USAGE_MIN(1), \ - HID_USAGE_MAX(16), HID_OUTPUT(HID_DATA | HID_VARIABLE | HID_ABSOLUTE), \ + HID_USAGE_MAX(11), HID_OUTPUT(HID_DATA | HID_VARIABLE | HID_ABSOLUTE), \ HID_REPORT_COUNT(1), HID_REPORT_SIZE(40), /*Padding*/ \ HID_INPUT(HID_CONSTANT | HID_VARIABLE | HID_ABSOLUTE), \ HID_COLLECTION_END