/* * (c) 2015 flabberast * * Based on the following work: * - Guillaume Duc's raw hid example (MIT License) * https://github.com/guiduc/usb-hid-chibios-example * - PJRC Teensy examples (MIT License) * https://www.pjrc.com/teensy/usb_keyboard.html * - hasu's TMK keyboard code (GPL v2 and some code Modified BSD) * https://github.com/tmk/tmk_keyboard/ * - ChibiOS demo code (Apache 2.0 License) * http://www.chibios.org * * Since some GPL'd code is used, this work is licensed under * GPL v2 or later. */ /* * Implementation notes: * * USBEndpointConfig - Configured using explicit order instead of struct member name. * This is due to ChibiOS hal LLD differences, which is dependent on hardware, * "USBv1" devices have `ep_buffers` and "OTGv1" have `in_multiplier`. * Given `USBv1/hal_usb_lld.h` marks the field as "not currently used" this code file * makes the assumption this is safe to avoid littering with preprocessor directives. */ #include "ch.h" #include "hal.h" #include "usb_main.h" #include "host.h" #include "debug.h" #include "suspend.h" #ifdef SLEEP_LED_ENABLE # include "sleep_led.h" # include "led.h" #endif #include "wait.h" #include "usb_descriptor.h" #include "usb_driver.h" #ifdef NKRO_ENABLE # include "keycode_config.h" extern keymap_config_t keymap_config; #endif #ifdef WEBUSB_ENABLE #include "webusb.h" #endif /* --------------------------------------------------------- * Global interface variables and declarations * --------------------------------------------------------- */ #ifndef usb_lld_connect_bus # define usb_lld_connect_bus(usbp) #endif #ifndef usb_lld_disconnect_bus # define usb_lld_disconnect_bus(usbp) #endif uint8_t keyboard_idle __attribute__((aligned(2))) = 0; uint8_t keyboard_protocol __attribute__((aligned(2))) = 1; uint16_t keyboard_led_stats __attribute__((aligned(2))) = 0; volatile uint16_t keyboard_idle_count = 0; static virtual_timer_t keyboard_idle_timer; static void keyboard_idle_timer_cb(void *arg); report_keyboard_t keyboard_report_sent = {{0}}; #ifdef MOUSE_ENABLE report_mouse_t mouse_report_blank = {0}; #endif /* MOUSE_ENABLE */ #ifdef EXTRAKEY_ENABLE uint8_t extra_report_blank[3] = {0}; #endif /* EXTRAKEY_ENABLE */ /* --------------------------------------------------------- * Descriptors and USB driver objects * --------------------------------------------------------- */ /* HID specific constants */ #define HID_GET_REPORT 0x01 #define HID_GET_IDLE 0x02 #define HID_GET_PROTOCOL 0x03 #define HID_SET_REPORT 0x09 #define HID_SET_IDLE 0x0A #define HID_SET_PROTOCOL 0x0B /* * Handles the GET_DESCRIPTOR callback * * Returns the proper descriptor */ static const USBDescriptor *usb_get_descriptor_cb(USBDriver *usbp, uint8_t dtype, uint8_t dindex, uint16_t wIndex) { (void)usbp; static USBDescriptor desc; uint16_t wValue = ((uint16_t)dtype << 8) | dindex; desc.ud_string = NULL; desc.ud_size = get_usb_descriptor(wValue, wIndex, (const void **const) & desc.ud_string); if (desc.ud_string == NULL) return NULL; else return &desc; } #ifndef KEYBOARD_SHARED_EP /* keyboard endpoint state structure */ static USBInEndpointState kbd_ep_state; /* keyboard endpoint initialization structure (IN) - see USBEndpointConfig comment at top of file */ static const USBEndpointConfig kbd_ep_config = { USB_EP_MODE_TYPE_INTR, /* Interrupt EP */ NULL, /* SETUP packet notification callback */ kbd_in_cb, /* IN notification callback */ NULL, /* OUT notification callback */ KEYBOARD_EPSIZE, /* IN maximum packet size */ 0, /* OUT maximum packet size */ &kbd_ep_state, /* IN Endpoint state */ NULL, /* OUT endpoint state */ 2, /* IN multiplier */ NULL /* SETUP buffer (not a SETUP endpoint) */ }; #endif #if defined(MOUSE_ENABLE) && !defined(MOUSE_SHARED_EP) /* mouse endpoint state structure */ static USBInEndpointState mouse_ep_state; /* mouse endpoint initialization structure (IN) - see USBEndpointConfig comment at top of file */ static const USBEndpointConfig mouse_ep_config = { USB_EP_MODE_TYPE_INTR, /* Interrupt EP */ NULL, /* SETUP packet notification callback */ mouse_in_cb, /* IN notification callback */ NULL, /* OUT notification callback */ MOUSE_EPSIZE, /* IN maximum packet size */ 0, /* OUT maximum packet size */ &mouse_ep_state, /* IN Endpoint state */ NULL, /* OUT endpoint state */ 2, /* IN multiplier */ NULL /* SETUP buffer (not a SETUP endpoint) */ }; #endif #ifdef SHARED_EP_ENABLE /* shared endpoint state structure */ static USBInEndpointState shared_ep_state; /* shared endpoint initialization structure (IN) - see USBEndpointConfig comment at top of file */ static const USBEndpointConfig shared_ep_config = { USB_EP_MODE_TYPE_INTR, /* Interrupt EP */ NULL, /* SETUP packet notification callback */ shared_in_cb, /* IN notification callback */ NULL, /* OUT notification callback */ SHARED_EPSIZE, /* IN maximum packet size */ 0, /* OUT maximum packet size */ &shared_ep_state, /* IN Endpoint state */ NULL, /* OUT endpoint state */ 2, /* IN multiplier */ NULL /* SETUP buffer (not a SETUP endpoint) */ }; #endif #ifdef WEBUSB_ENABLE /** Microsoft OS 2.0 Descriptor. This is used by Windows to select the USB driver for the device. * * For WebUSB in Chrome, the correct driver is WinUSB, which is selected via CompatibleID. * * Additionally, while Chrome is built using libusb, a magic registry key needs to be set containing a GUID for * the device. */ const MS_OS_20_Descriptor_t PROGMEM MS_OS_20_Descriptor = MS_OS_20_DESCRIPTOR; /** URL descriptor string. This is a UTF-8 string containing a URL excluding the prefix. At least one of these must be * defined and returned when the Landing Page descriptor index is requested. */ const WebUSB_URL_Descriptor_t PROGMEM WebUSB_LandingPage = WEBUSB_URL_DESCRIPTOR(WEBUSB_LANDING_PAGE_URL); #endif typedef struct { size_t queue_capacity_in; size_t queue_capacity_out; USBInEndpointState in_ep_state; USBOutEndpointState out_ep_state; USBInEndpointState int_ep_state; USBEndpointConfig in_ep_config; USBEndpointConfig out_ep_config; USBEndpointConfig int_ep_config; const QMKUSBConfig config; QMKUSBDriver driver; } usb_driver_config_t; /* Reusable initialization structure - see USBEndpointConfig comment at top of file */ #define QMK_USB_DRIVER_CONFIG(stream, notification, fixedsize) \ { \ .queue_capacity_in = stream##_IN_CAPACITY, .queue_capacity_out = stream##_OUT_CAPACITY, \ .in_ep_config = \ { \ stream##_IN_MODE, /* Interrupt EP */ \ NULL, /* SETUP packet notification callback */ \ qmkusbDataTransmitted, /* IN notification callback */ \ NULL, /* OUT notification callback */ \ stream##_EPSIZE, /* IN maximum packet size */ \ 0, /* OUT maximum packet size */ \ NULL, /* IN Endpoint state */ \ NULL, /* OUT endpoint state */ \ 2, /* IN multiplier */ \ NULL /* SETUP buffer (not a SETUP endpoint) */ \ }, \ .out_ep_config = \ { \ stream##_OUT_MODE, /* Interrupt EP */ \ NULL, /* SETUP packet notification callback */ \ NULL, /* IN notification callback */ \ qmkusbDataReceived, /* OUT notification callback */ \ 0, /* IN maximum packet size */ \ stream##_EPSIZE, /* OUT maximum packet size */ \ NULL, /* IN Endpoint state */ \ NULL, /* OUT endpoint state */ \ 2, /* IN multiplier */ \ NULL, /* SETUP buffer (not a SETUP endpoint) */ \ }, \ .int_ep_config = \ { \ USB_EP_MODE_TYPE_INTR, /* Interrupt EP */ \ NULL, /* SETUP packet notification callback */ \ qmkusbInterruptTransmitted, /* IN notification callback */ \ NULL, /* OUT notification callback */ \ CDC_NOTIFICATION_EPSIZE, /* IN maximum packet size */ \ 0, /* OUT maximum packet size */ \ NULL, /* IN Endpoint state */ \ NULL, /* OUT endpoint state */ \ 2, /* IN multiplier */ \ NULL, /* SETUP buffer (not a SETUP endpoint) */ \ }, \ .config = { \ .usbp = &USB_DRIVER, \ .bulk_in = stream##_IN_EPNUM, \ .bulk_out = stream##_OUT_EPNUM, \ .int_in = notification, \ .in_buffers = stream##_IN_CAPACITY, \ .out_buffers = stream##_OUT_CAPACITY, \ .in_size = stream##_EPSIZE, \ .out_size = stream##_EPSIZE, \ .fixed_size = fixedsize, \ .ib = (uint8_t[BQ_BUFFER_SIZE(stream##_IN_CAPACITY, stream##_EPSIZE)]){}, \ .ob = (uint8_t[BQ_BUFFER_SIZE(stream##_OUT_CAPACITY, stream##_EPSIZE)]){}, \ } \ } typedef struct { union { struct { #ifdef CONSOLE_ENABLE usb_driver_config_t console_driver; #endif #ifdef RAW_ENABLE usb_driver_config_t raw_driver; #endif #ifdef MIDI_ENABLE usb_driver_config_t midi_driver; #endif #ifdef VIRTSER_ENABLE usb_driver_config_t serial_driver; #endif #ifdef WEBUSB_ENABLE usb_driver_config_t webusb_driver; #endif }; usb_driver_config_t array[0]; }; } usb_driver_configs_t; static usb_driver_configs_t drivers = { #ifdef CONSOLE_ENABLE # define CONSOLE_IN_CAPACITY 4 # define CONSOLE_OUT_CAPACITY 4 # define CONSOLE_IN_MODE USB_EP_MODE_TYPE_INTR # define CONSOLE_OUT_MODE USB_EP_MODE_TYPE_INTR .console_driver = QMK_USB_DRIVER_CONFIG(CONSOLE, 0, true), #endif #ifdef RAW_ENABLE # define RAW_IN_CAPACITY 4 # define RAW_OUT_CAPACITY 4 # define RAW_IN_MODE USB_EP_MODE_TYPE_INTR # define RAW_OUT_MODE USB_EP_MODE_TYPE_INTR .raw_driver = QMK_USB_DRIVER_CONFIG(RAW, 0, false), #endif #ifdef MIDI_ENABLE # define MIDI_STREAM_IN_CAPACITY 4 # define MIDI_STREAM_OUT_CAPACITY 4 # define MIDI_STREAM_IN_MODE USB_EP_MODE_TYPE_BULK # define MIDI_STREAM_OUT_MODE USB_EP_MODE_TYPE_BULK .midi_driver = QMK_USB_DRIVER_CONFIG(MIDI_STREAM, 0, false), #endif #ifdef VIRTSER_ENABLE # define CDC_IN_CAPACITY 4 # define CDC_OUT_CAPACITY 4 # define CDC_IN_MODE USB_EP_MODE_TYPE_BULK # define CDC_OUT_MODE USB_EP_MODE_TYPE_BULK .serial_driver = QMK_USB_DRIVER_CONFIG(CDC, CDC_NOTIFICATION_EPNUM, false), #endif #ifdef WEBUSB_ENABLE # define WEBUSB_IN_CAPACITY 4 # define WEBUSB_OUT_CAPACITY 4 # define WEBUSB_IN_MODE USB_EP_MODE_TYPE_INTR # define WEBUSB_OUT_MODE USB_EP_MODE_TYPE_INTR .webusb_driver = QMK_USB_DRIVER_CONFIG(WEBUSB, 0, false), #endif }; #define NUM_USB_DRIVERS (sizeof(drivers) / sizeof(usb_driver_config_t)) /* --------------------------------------------------------- * USB driver functions * --------------------------------------------------------- */ /* Handles the USB driver global events * TODO: maybe disable some things when connection is lost? */ static void usb_event_cb(USBDriver *usbp, usbevent_t event) { switch (event) { case USB_EVENT_ADDRESS: return; case USB_EVENT_CONFIGURED: osalSysLockFromISR(); /* Enable the endpoints specified into the configuration. */ #ifndef KEYBOARD_SHARED_EP usbInitEndpointI(usbp, KEYBOARD_IN_EPNUM, &kbd_ep_config); #endif #if defined(MOUSE_ENABLE) && !defined(MOUSE_SHARED_EP) usbInitEndpointI(usbp, MOUSE_IN_EPNUM, &mouse_ep_config); #endif #ifdef SHARED_EP_ENABLE usbInitEndpointI(usbp, SHARED_IN_EPNUM, &shared_ep_config); #endif for (int i = 0; i < NUM_USB_DRIVERS; i++) { usbInitEndpointI(usbp, drivers.array[i].config.bulk_in, &drivers.array[i].in_ep_config); usbInitEndpointI(usbp, drivers.array[i].config.bulk_out, &drivers.array[i].out_ep_config); if (drivers.array[i].config.int_in) { usbInitEndpointI(usbp, drivers.array[i].config.int_in, &drivers.array[i].int_ep_config); } qmkusbConfigureHookI(&drivers.array[i].driver); } osalSysUnlockFromISR(); return; case USB_EVENT_SUSPEND: #ifdef SLEEP_LED_ENABLE sleep_led_enable(); #endif /* SLEEP_LED_ENABLE */ /* Falls into.*/ case USB_EVENT_UNCONFIGURED: /* Falls into.*/ case USB_EVENT_RESET: for (int i = 0; i < NUM_USB_DRIVERS; i++) { chSysLockFromISR(); /* Disconnection event on suspend.*/ qmkusbSuspendHookI(&drivers.array[i].driver); chSysUnlockFromISR(); } return; case USB_EVENT_WAKEUP: // TODO: from ISR! print("[W]"); for (int i = 0; i < NUM_USB_DRIVERS; i++) { chSysLockFromISR(); /* Disconnection event on suspend.*/ qmkusbWakeupHookI(&drivers.array[i].driver); chSysUnlockFromISR(); } suspend_wakeup_init(); #ifdef SLEEP_LED_ENABLE sleep_led_disable(); // NOTE: converters may not accept this led_set(host_keyboard_leds()); #endif /* SLEEP_LED_ENABLE */ return; case USB_EVENT_STALLED: return; } } /* Function used locally in os/hal/src/usb.c for getting descriptors * need it here for HID descriptor */ static uint16_t get_hword(uint8_t *p) { uint16_t hw; hw = (uint16_t)*p++; hw |= (uint16_t)*p << 8U; return hw; } /* * Appendix G: HID Request Support Requirements * * The following table enumerates the requests that need to be supported by various types of HID class devices. * Device type GetReport SetReport GetIdle SetIdle GetProtocol SetProtocol * ------------------------------------------------------------------------------------------ * Boot Mouse Required Optional Optional Optional Required Required * Non-Boot Mouse Required Optional Optional Optional Optional Optional * Boot Keyboard Required Optional Required Required Required Required * Non-Boot Keybrd Required Optional Required Required Optional Optional * Other Device Required Optional Optional Optional Optional Optional */ #if defined(SHARED_EP_ENABLE) && !defined(KEYBOARD_SHARED_EP) static uint8_t set_report_buf[2] __attribute__((aligned(2))); static void set_led_transfer_cb(USBDriver *usbp) { if ((set_report_buf[0] == REPORT_ID_KEYBOARD) || (set_report_buf[0] == REPORT_ID_NKRO)) { keyboard_led_stats = set_report_buf[1]; } } #endif /* Callback for SETUP request on the endpoint 0 (control) */ static bool usb_request_hook_cb(USBDriver *usbp) { const USBDescriptor *dp; /* usbp->setup fields: * 0: bmRequestType (bitmask) * 1: bRequest * 2,3: (LSB,MSB) wValue * 4,5: (LSB,MSB) wIndex * 6,7: (LSB,MSB) wLength (number of bytes to transfer if there is a data phase) */ /* Handle HID class specific requests */ if (((usbp->setup[0] & USB_RTYPE_TYPE_MASK) == USB_RTYPE_TYPE_CLASS) && ((usbp->setup[0] & USB_RTYPE_RECIPIENT_MASK) == USB_RTYPE_RECIPIENT_INTERFACE)) { switch (usbp->setup[0] & USB_RTYPE_DIR_MASK) { case USB_RTYPE_DIR_DEV2HOST: switch (usbp->setup[1]) { /* bRequest */ case HID_GET_REPORT: switch (usbp->setup[4]) { /* LSB(wIndex) (check MSB==0?) */ case KEYBOARD_INTERFACE: usbSetupTransfer(usbp, (uint8_t *)&keyboard_report_sent, sizeof(keyboard_report_sent), NULL); return TRUE; break; #if defined(MOUSE_ENABLE) && !defined(MOUSE_SHARED_EP) case MOUSE_INTERFACE: usbSetupTransfer(usbp, (uint8_t *)&mouse_report_blank, sizeof(mouse_report_blank), NULL); return TRUE; break; #endif default: usbSetupTransfer(usbp, NULL, 0, NULL); return TRUE; break; } break; case HID_GET_PROTOCOL: if ((usbp->setup[4] == KEYBOARD_INTERFACE) && (usbp->setup[5] == 0)) { /* wIndex */ usbSetupTransfer(usbp, &keyboard_protocol, 1, NULL); return TRUE; } break; case HID_GET_IDLE: usbSetupTransfer(usbp, &keyboard_idle, 1, NULL); return TRUE; break; } break; case USB_RTYPE_DIR_HOST2DEV: switch (usbp->setup[1]) { /* bRequest */ case HID_SET_REPORT: switch (usbp->setup[4]) { /* LSB(wIndex) (check MSB==0 and wLength==1?) */ #if defined(SHARED_EP_ENABLE) && !defined(KEYBOARD_SHARED_EP) case SHARED_INTERFACE: usbSetupTransfer(usbp, set_report_buf, sizeof(set_report_buf), set_led_transfer_cb); return TRUE; break; #endif case KEYBOARD_INTERFACE: /* keyboard_led_stats = * keyboard_led_stats needs be word (or dword), otherwise we get an exception on F0 */ usbSetupTransfer(usbp, (uint8_t *)&keyboard_led_stats, 1, NULL); return TRUE; break; } break; case HID_SET_PROTOCOL: if ((usbp->setup[4] == KEYBOARD_INTERFACE) && (usbp->setup[5] == 0)) { /* wIndex */ keyboard_protocol = ((usbp->setup[2]) != 0x00); /* LSB(wValue) */ #ifdef NKRO_ENABLE keymap_config.nkro = !!keyboard_protocol; if (!keymap_config.nkro && keyboard_idle) { #else /* NKRO_ENABLE */ if (keyboard_idle) { #endif /* NKRO_ENABLE */ /* arm the idle timer if boot protocol & idle */ osalSysLockFromISR(); chVTSetI(&keyboard_idle_timer, 4 * MS2ST(keyboard_idle), keyboard_idle_timer_cb, (void *)usbp); osalSysUnlockFromISR(); } } usbSetupTransfer(usbp, NULL, 0, NULL); return TRUE; break; case HID_SET_IDLE: keyboard_idle = usbp->setup[3]; /* MSB(wValue) */ /* arm the timer */ #ifdef NKRO_ENABLE if (!keymap_config.nkro && keyboard_idle) { #else /* NKRO_ENABLE */ if (keyboard_idle) { #endif /* NKRO_ENABLE */ osalSysLockFromISR(); chVTSetI(&keyboard_idle_timer, 4 * MS2ST(keyboard_idle), keyboard_idle_timer_cb, (void *)usbp); osalSysUnlockFromISR(); } usbSetupTransfer(usbp, NULL, 0, NULL); return TRUE; break; } break; } } #ifdef WEBUSB_ENABLE switch (usbp->setup[1]) { case WEBUSB_VENDOR_CODE: if (usbp->setup[4] == WebUSB_RTYPE_GetURL) { if (usbp->setup[2] == WEBUSB_LANDING_PAGE_INDEX) { usbSetupTransfer(usbp, (uint8_t *)&WebUSB_LandingPage, WebUSB_LandingPage.Header.Size, NULL); return TRUE; break; } } break; case MS_OS_20_VENDOR_CODE: if (usbp->setup[4] == MS_OS_20_DESCRIPTOR_INDEX) { usbSetupTransfer(usbp, (uint8_t *)&MS_OS_20_Descriptor, MS_OS_20_Descriptor.Header.TotalLength, NULL); return TRUE; break; } break; } #endif /* Handle the Get_Descriptor Request for HID class (not handled by the default hook) */ if ((usbp->setup[0] == 0x81) && (usbp->setup[1] == USB_REQ_GET_DESCRIPTOR)) { dp = usbp->config->get_descriptor_cb(usbp, usbp->setup[3], usbp->setup[2], get_hword(&usbp->setup[4])); if (dp == NULL) return FALSE; usbSetupTransfer(usbp, (uint8_t *)dp->ud_string, dp->ud_size, NULL); return TRUE; } for (int i = 0; i < NUM_USB_DRIVERS; i++) { if (drivers.array[i].config.int_in) { // NOTE: Assumes that we only have one serial driver return qmkusbRequestsHook(usbp); } } return FALSE; } /* Start-of-frame callback */ static void usb_sof_cb(USBDriver *usbp) { kbd_sof_cb(usbp); osalSysLockFromISR(); for (int i = 0; i < NUM_USB_DRIVERS; i++) { qmkusbSOFHookI(&drivers.array[i].driver); } osalSysUnlockFromISR(); } /* USB driver configuration */ static const USBConfig usbcfg = { usb_event_cb, /* USB events callback */ usb_get_descriptor_cb, /* Device GET_DESCRIPTOR request callback */ usb_request_hook_cb, /* Requests hook callback */ usb_sof_cb /* Start Of Frame callback */ }; /* * Initialize the USB driver */ void init_usb_driver(USBDriver *usbp) { for (int i = 0; i < NUM_USB_DRIVERS; i++) { QMKUSBDriver *driver = &drivers.array[i].driver; drivers.array[i].in_ep_config.in_state = &drivers.array[i].in_ep_state; drivers.array[i].out_ep_config.out_state = &drivers.array[i].out_ep_state; drivers.array[i].int_ep_config.in_state = &drivers.array[i].int_ep_state; qmkusbObjectInit(driver, &drivers.array[i].config); qmkusbStart(driver, &drivers.array[i].config); } /* * Activates the USB driver and then the USB bus pull-up on D+. * Note, a delay is inserted in order to not have to disconnect the cable * after a reset. */ usbDisconnectBus(usbp); wait_ms(1500); usbStart(usbp, &usbcfg); usbConnectBus(usbp); chVTObjectInit(&keyboard_idle_timer); } /* --------------------------------------------------------- * Keyboard functions * --------------------------------------------------------- */ /* keyboard IN callback hander (a kbd report has made it IN) */ #ifndef KEYBOARD_SHARED_EP void kbd_in_cb(USBDriver *usbp, usbep_t ep) { /* STUB */ (void)usbp; (void)ep; } #endif /* start-of-frame handler * TODO: i guess it would be better to re-implement using timers, * so that this is not going to have to be checked every 1ms */ void kbd_sof_cb(USBDriver *usbp) { (void)usbp; } /* Idle requests timer code * callback (called from ISR, unlocked state) */ static void keyboard_idle_timer_cb(void *arg) { USBDriver *usbp = (USBDriver *)arg; osalSysLockFromISR(); /* check that the states of things are as they're supposed to */ if (usbGetDriverStateI(usbp) != USB_ACTIVE) { /* do not rearm the timer, should be enabled on IDLE request */ osalSysUnlockFromISR(); return; } #ifdef NKRO_ENABLE if (!keymap_config.nkro && keyboard_idle && keyboard_protocol) { #else /* NKRO_ENABLE */ if (keyboard_idle && keyboard_protocol) { #endif /* NKRO_ENABLE */ /* TODO: are we sure we want the KBD_ENDPOINT? */ if (!usbGetTransmitStatusI(usbp, KEYBOARD_IN_EPNUM)) { usbStartTransmitI(usbp, KEYBOARD_IN_EPNUM, (uint8_t *)&keyboard_report_sent, KEYBOARD_EPSIZE); } /* rearm the timer */ chVTSetI(&keyboard_idle_timer, 4 * MS2ST(keyboard_idle), keyboard_idle_timer_cb, (void *)usbp); } /* do not rearm the timer if the condition above fails * it should be enabled again on either IDLE or SET_PROTOCOL requests */ osalSysUnlockFromISR(); } /* LED status */ uint8_t keyboard_leds(void) { return (uint8_t)(keyboard_led_stats & 0xFF); } /* prepare and start sending a report IN * not callable from ISR or locked state */ void send_keyboard(report_keyboard_t *report) { osalSysLock(); if (usbGetDriverStateI(&USB_DRIVER) != USB_ACTIVE) { osalSysUnlock(); return; } osalSysUnlock(); #ifdef NKRO_ENABLE if (keymap_config.nkro && keyboard_protocol) { /* NKRO protocol */ /* need to wait until the previous packet has made it through */ /* can rewrite this using the synchronous API, then would wait * until *after* the packet has been transmitted. I think * this is more efficient */ /* busy wait, should be short and not very common */ osalSysLock(); if (usbGetTransmitStatusI(&USB_DRIVER, SHARED_IN_EPNUM)) { /* Need to either suspend, or loop and call unlock/lock during * every iteration - otherwise the system will remain locked, * no interrupts served, so USB not going through as well. * Note: for suspend, need USB_USE_WAIT == TRUE in halconf.h */ osalThreadSuspendS(&(&USB_DRIVER)->epc[SHARED_IN_EPNUM]->in_state->thread); } usbStartTransmitI(&USB_DRIVER, SHARED_IN_EPNUM, (uint8_t *)report, sizeof(struct nkro_report)); osalSysUnlock(); } else #endif /* NKRO_ENABLE */ { /* regular protocol */ /* need to wait until the previous packet has made it through */ /* busy wait, should be short and not very common */ osalSysLock(); if (usbGetTransmitStatusI(&USB_DRIVER, KEYBOARD_IN_EPNUM)) { /* Need to either suspend, or loop and call unlock/lock during * every iteration - otherwise the system will remain locked, * no interrupts served, so USB not going through as well. * Note: for suspend, need USB_USE_WAIT == TRUE in halconf.h */ osalThreadSuspendS(&(&USB_DRIVER)->epc[KEYBOARD_IN_EPNUM]->in_state->thread); } uint8_t *data, size; if (keyboard_protocol) { data = (uint8_t *)report; size = KEYBOARD_REPORT_SIZE; } else { /* boot protocol */ data = &report->mods; size = 8; } usbStartTransmitI(&USB_DRIVER, KEYBOARD_IN_EPNUM, data, size); osalSysUnlock(); } keyboard_report_sent = *report; } /* --------------------------------------------------------- * Mouse functions * --------------------------------------------------------- */ #ifdef MOUSE_ENABLE # ifndef MOUSE_SHARED_EP /* mouse IN callback hander (a mouse report has made it IN) */ void mouse_in_cb(USBDriver *usbp, usbep_t ep) { (void)usbp; (void)ep; } # endif void send_mouse(report_mouse_t *report) { osalSysLock(); if (usbGetDriverStateI(&USB_DRIVER) != USB_ACTIVE) { osalSysUnlock(); return; } if (usbGetTransmitStatusI(&USB_DRIVER, MOUSE_IN_EPNUM)) { /* Need to either suspend, or loop and call unlock/lock during * every iteration - otherwise the system will remain locked, * no interrupts served, so USB not going through as well. * Note: for suspend, need USB_USE_WAIT == TRUE in halconf.h */ if (osalThreadSuspendTimeoutS(&(&USB_DRIVER)->epc[MOUSE_IN_EPNUM]->in_state->thread, MS2ST(10)) == MSG_TIMEOUT) { osalSysUnlock(); return; } } usbStartTransmitI(&USB_DRIVER, MOUSE_IN_EPNUM, (uint8_t *)report, sizeof(report_mouse_t)); osalSysUnlock(); } #else /* MOUSE_ENABLE */ void send_mouse(report_mouse_t *report) { (void)report; } #endif /* MOUSE_ENABLE */ /* --------------------------------------------------------- * Shared EP functions * --------------------------------------------------------- */ #ifdef SHARED_EP_ENABLE /* shared IN callback hander */ void shared_in_cb(USBDriver *usbp, usbep_t ep) { /* STUB */ (void)usbp; (void)ep; } #endif /* --------------------------------------------------------- * Extrakey functions * --------------------------------------------------------- */ #ifdef EXTRAKEY_ENABLE static void send_extra_report(uint8_t report_id, uint16_t data) { osalSysLock(); if (usbGetDriverStateI(&USB_DRIVER) != USB_ACTIVE) { osalSysUnlock(); return; } report_extra_t report = {.report_id = report_id, .usage = data}; usbStartTransmitI(&USB_DRIVER, SHARED_IN_EPNUM, (uint8_t *)&report, sizeof(report_extra_t)); osalSysUnlock(); } void send_system(uint16_t data) { send_extra_report(REPORT_ID_SYSTEM, data); } void send_consumer(uint16_t data) { send_extra_report(REPORT_ID_CONSUMER, data); } #else /* EXTRAKEY_ENABLE */ void send_system(uint16_t data) { (void)data; } void send_consumer(uint16_t data) { (void)data; } #endif /* EXTRAKEY_ENABLE */ /* --------------------------------------------------------- * Console functions * --------------------------------------------------------- */ #ifdef CONSOLE_ENABLE int8_t sendchar(uint8_t c) { // The previous implmentation had timeouts, but I think it's better to just slow down // and make sure that everything is transferred, rather than dropping stuff return chnWrite(&drivers.console_driver.driver, &c, 1); } // Just a dummy function for now, this could be exposed as a weak function // Or connected to the actual QMK console static void console_receive(uint8_t *data, uint8_t length) { (void)data; (void)length; } void console_task(void) { uint8_t buffer[CONSOLE_EPSIZE]; size_t size = 0; do { size_t size = chnReadTimeout(&drivers.console_driver.driver, buffer, sizeof(buffer), TIME_IMMEDIATE); if (size > 0) { console_receive(buffer, size); } } while (size > 0); } #else /* CONSOLE_ENABLE */ int8_t sendchar(uint8_t c) { (void)c; return 0; } #endif /* CONSOLE_ENABLE */ void sendchar_pf(void *p, char c) { (void)p; sendchar((uint8_t)c); } #ifdef RAW_ENABLE void raw_hid_send(uint8_t *data, uint8_t length) { // TODO: implement variable size packet if (length != RAW_EPSIZE) { return; } chnWrite(&drivers.raw_driver.driver, data, length); } __attribute__((weak)) void raw_hid_receive(uint8_t *data, uint8_t length) { // Users should #include "raw_hid.h" in their own code // and implement this function there. Leave this as weak linkage // so users can opt to not handle data coming in. } void raw_hid_task(void) { uint8_t buffer[RAW_EPSIZE]; size_t size = 0; do { size_t size = chnReadTimeout(&drivers.raw_driver.driver, buffer, sizeof(buffer), TIME_IMMEDIATE); if (size > 0) { raw_hid_receive(buffer, size); } } while (size > 0); } #endif #ifdef WEBUSB_ENABLE void webusb_send(uint8_t *data, uint8_t length) { if(chnWriteTimeout(&drivers.webusb_driver.driver, data, length, TIME_IMMEDIATE) != length){ webusb_state.paired = false; webusb_state.pairing = false; } } // Users should #include "raw_hid.h" in their own code // and implement this function there. Leave this as weak linkage // so users can opt to not handle data coming in. void webusb_task(void) { uint8_t buffer[WEBUSB_EPSIZE]; size_t size = 0; do { size_t size = chnReadTimeout(&drivers.webusb_driver.driver, buffer, sizeof(buffer), TIME_IMMEDIATE); if (size > 0) { webusb_receive(buffer, size); } } while (size > 0); } #endif #ifdef MIDI_ENABLE void send_midi_packet(MIDI_EventPacket_t *event) { chnWrite(&drivers.midi_driver.driver, (uint8_t *)event, sizeof(MIDI_EventPacket_t)); } bool recv_midi_packet(MIDI_EventPacket_t *const event) { size_t size = chnReadTimeout(&drivers.midi_driver.driver, (uint8_t *)event, sizeof(MIDI_EventPacket_t), TIME_IMMEDIATE); return size == sizeof(MIDI_EventPacket_t); } #endif #ifdef VIRTSER_ENABLE void virtser_send(const uint8_t byte) { chnWrite(&drivers.serial_driver.driver, &byte, 1); } __attribute__((weak)) void virtser_recv(uint8_t c) { // Ignore by default } void virtser_task(void) { uint8_t numBytesReceived = 0; uint8_t buffer[16]; do { numBytesReceived = chnReadTimeout(&drivers.serial_driver.driver, buffer, sizeof(buffer), TIME_IMMEDIATE); for (int i = 0; i < numBytesReceived; i++) { virtser_recv(buffer[i]); } } while (numBytesReceived > 0); } #endif