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|
/*
* (c) 2015 flabberast <s3+flabbergast@sdfeu.org>
*
* 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 <string.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 JOYSTICK_ENABLE
# include "joystick.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;
uint8_t keyboard_led_state = 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
#if STM32_USB_USE_OTG1
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 inout_ep_config;
USBEndpointConfig int_ep_config;
const QMKUSBConfig config;
QMKUSBDriver driver;
} usb_driver_config_t;
#else
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;
#endif
#if STM32_USB_USE_OTG1
/* 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, \
.inout_ep_config = \
{ \
stream##_IN_MODE, /* Interrupt EP */ \
NULL, /* SETUP packet notification callback */ \
qmkusbDataTransmitted, /* IN notification callback */ \
qmkusbDataReceived, /* OUT notification callback */ \
stream##_EPSIZE, /* 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 = (__attribute__((aligned(4))) uint8_t[BQ_BUFFER_SIZE(stream##_IN_CAPACITY, stream##_EPSIZE)]){}, \
.ob = (__attribute__((aligned(4))) uint8_t[BQ_BUFFER_SIZE(stream##_OUT_CAPACITY, stream##_EPSIZE)]){}, \
} \
}
#else
/* 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 = (__attribute__((aligned(4))) uint8_t[BQ_BUFFER_SIZE(stream##_IN_CAPACITY, stream##_EPSIZE)]){}, \
.ob = (__attribute__((aligned(4))) uint8_t[BQ_BUFFER_SIZE(stream##_OUT_CAPACITY, stream##_EPSIZE)]){}, \
} \
}
#endif
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 JOYSTICK_ENABLE
usb_driver_config_t joystick_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 JOYSTICK_ENABLE
# define JOYSTICK_IN_CAPACITY 4
# define JOYSTICK_OUT_CAPACITY 4
# define JOYSTICK_IN_MODE USB_EP_MODE_TYPE_BULK
# define JOYSTICK_OUT_MODE USB_EP_MODE_TYPE_BULK
.joystick_driver = QMK_USB_DRIVER_CONFIG(JOYSTICK, 0, false),
#endif
};
#define NUM_USB_DRIVERS (sizeof(drivers) / sizeof(usb_driver_config_t))
/* ---------------------------------------------------------
* USB driver functions
* ---------------------------------------------------------
*/
#define USB_EVENT_QUEUE_SIZE 16
usbevent_t event_queue[USB_EVENT_QUEUE_SIZE];
uint8_t event_queue_head;
uint8_t event_queue_tail;
void usb_event_queue_init(void) {
// Initialise the event queue
memset(&event_queue, 0, sizeof(event_queue));
event_queue_head = 0;
event_queue_tail = 0;
}
static inline bool usb_event_queue_enqueue(usbevent_t event) {
uint8_t next = (event_queue_head + 1) % USB_EVENT_QUEUE_SIZE;
if (next == event_queue_tail) {
return false;
}
event_queue[event_queue_head] = event;
event_queue_head = next;
return true;
}
static inline bool usb_event_queue_dequeue(usbevent_t *event) {
if (event_queue_head == event_queue_tail) {
return false;
}
*event = event_queue[event_queue_tail];
event_queue_tail = (event_queue_tail + 1) % USB_EVENT_QUEUE_SIZE;
return true;
}
static inline void usb_event_suspend_handler(void) {
#ifdef SLEEP_LED_ENABLE
sleep_led_enable();
#endif /* SLEEP_LED_ENABLE */
}
static inline void usb_event_wakeup_handler(void) {
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 */
}
void usb_event_queue_task(void) {
usbevent_t event;
while (usb_event_queue_dequeue(&event)) {
switch (event) {
case USB_EVENT_SUSPEND:
usb_event_suspend_handler();
break;
case USB_EVENT_WAKEUP:
usb_event_wakeup_handler();
break;
default:
// Nothing to do, we don't handle it.
break;
}
}
}
/* 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++) {
#if STM32_USB_USE_OTG1
usbInitEndpointI(usbp, drivers.array[i].config.bulk_in, &drivers.array[i].inout_ep_config);
#else
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);
#endif
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:
usb_event_queue_enqueue(USB_EVENT_SUSPEND);
/* 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(&driver
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