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qmk_firmware/protocol/lufa/lufa.c

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/*
* Copyright 2012 Jun Wako <wakojun@gmail.com>
* This file is based on:
* LUFA-120219/Demos/Device/Lowlevel/KeyboardMouse
* LUFA-120219/Demos/Device/Lowlevel/GenericHID
*/
/*
LUFA Library
Copyright (C) Dean Camera, 2012.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
/*
Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Copyright 2010 Denver Gingerich (denver [at] ossguy [dot] com)
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
without fee, provided that the above copyright notice appear in
all copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of the author not be used in
advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
The author disclaim all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
whatsoever resulting from loss of use, data or profits, whether
in an action of contract, negligence or other tortious action,
arising out of or in connection with the use or performance of
this software.
*/
#include "report.h"
#include "host.h"
#include "host_driver.h"
#include "keyboard.h"
#include "sendchar.h"
#include "debug.h"
#include "descriptor.h"
#include "lufa.h"
static uint8_t keyboard_led_stats = 0;
// TODO: impl Control Request GET_REPORT
static report_keyboard_t keyboard_report_sent;
#ifdef MOUSE_ENABLE
static report_mouse_t mouse_report_sent;
#endif
/* Host driver */
static uint8_t keyboard_leds(void);
static void send_keyboard(report_keyboard_t *report);
static void send_mouse(report_mouse_t *report);
static void send_system(uint16_t data);
static void send_consumer(uint16_t data);
static host_driver_t lufa_driver = {
keyboard_leds,
send_keyboard,
send_mouse,
send_system,
send_consumer
};
static void SetupHardware(void);
static void Console_HID_Task(void);
int main(void)
{
SetupHardware();
sei();
print_enable = true;
debug_enable = true;
debug_matrix = true;
debug_keyboard = true;
debug_mouse = true;
/* TODO: can't print here
_delay_ms(5000);
USB_USBTask();
print("abcdefg\n");
USB_USBTask();
*/
keyboard_init();
host_set_driver(&lufa_driver);
while (1) {
keyboard_proc();
Console_HID_Task();
USB_USBTask();
}
}
void SetupHardware(void)
{
/* Disable watchdog if enabled by bootloader/fuses */
MCUSR &= ~(1 << WDRF);
wdt_disable();
/* Disable clock division */
clock_prescale_set(clock_div_1);
USB_Init();
}
static void Console_HID_Task(void)
{
/* Device must be connected and configured for the task to run */
if (USB_DeviceState != DEVICE_STATE_Configured)
return;
// TODO: impl receivechar()/recvchar()
Endpoint_SelectEndpoint(CONSOLE_OUT_EPNUM);
/* Check to see if a packet has been sent from the host */
if (Endpoint_IsOUTReceived())
{
/* Check to see if the packet contains data */
if (Endpoint_IsReadWriteAllowed())
{
/* Create a temporary buffer to hold the read in report from the host */
uint8_t ConsoleData[CONSOLE_EPSIZE];
/* Read Console Report Data */
Endpoint_Read_Stream_LE(&ConsoleData, sizeof(ConsoleData), NULL);
/* Process Console Report Data */
//ProcessConsoleHIDReport(ConsoleData);
}
/* Finalize the stream transfer to send the last packet */
Endpoint_ClearOUT();
}
/* IN packet */
Endpoint_SelectEndpoint(CONSOLE_IN_EPNUM);
// send IN packet
if (Endpoint_IsINReady())
Endpoint_ClearIN();
}
/*******************************************************************************
* USB Events
******************************************************************************/
/** Event handler for the USB_Connect event. */
void EVENT_USB_Device_Connect(void)
{
}
/** Event handler for the USB_Disconnect event. */
void EVENT_USB_Device_Disconnect(void)
{
}
/** Event handler for the USB_ConfigurationChanged event.
* This is fired when the host sets the current configuration of the USB device after enumeration.
*/
void EVENT_USB_Device_ConfigurationChanged(void)
{
bool ConfigSuccess = true;
/* Setup Keyboard HID Report Endpoints */
ConfigSuccess &= Endpoint_ConfigureEndpoint(KEYBOARD_IN_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
KEYBOARD_EPSIZE, ENDPOINT_BANK_SINGLE);
#ifdef MOUSE_ENABLE
/* Setup Mouse HID Report Endpoint */
ConfigSuccess &= Endpoint_ConfigureEndpoint(MOUSE_IN_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
MOUSE_EPSIZE, ENDPOINT_BANK_SINGLE);
#endif
#ifdef EXTRAKEY_ENABLE
/* Setup Extra HID Report Endpoint */
ConfigSuccess &= Endpoint_ConfigureEndpoint(EXTRA_IN_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
EXTRA_EPSIZE, ENDPOINT_BANK_SINGLE);
#endif
/* Setup Console HID Report Endpoints */
ConfigSuccess &= Endpoint_ConfigureEndpoint(CONSOLE_IN_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
CONSOLE_EPSIZE, ENDPOINT_BANK_SINGLE);
ConfigSuccess &= Endpoint_ConfigureEndpoint(CONSOLE_OUT_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_OUT,
CONSOLE_EPSIZE, ENDPOINT_BANK_SINGLE);
}
/*
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
*/
/** Event handler for the USB_ControlRequest event.
* This is fired before passing along unhandled control requests to the library for processing internally.
*/
void EVENT_USB_Device_ControlRequest(void)
{
uint8_t* ReportData = NULL;
uint8_t ReportSize = 0;
/* Handle HID Class specific requests */
switch (USB_ControlRequest.bRequest)
{
case HID_REQ_GetReport:
if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
{
Endpoint_ClearSETUP();
// Interface
switch (USB_ControlRequest.wIndex) {
case KEYBOARD_INTERFACE:
// TODO: test/check
ReportData = (uint8_t*)&keyboard_report_sent;
ReportSize = sizeof(keyboard_report_sent);
break;
#ifdef MOUSE_ENABLE
case MOUSE_INTERFACE:
// TODO: test/check
ReportData = (uint8_t*)&mouse_report_sent;
ReportSize = sizeof(mouse_report_sent);
break;
#endif
#ifdef EXTRAKEY_ENABLE
case EXTRA_INTERFACE:
break;
#endif
case CONSOLE_INTERFACE:
break;
}
/* Write the report data to the control endpoint */
Endpoint_Write_Control_Stream_LE(ReportData, ReportSize);
Endpoint_ClearOUT();
}
break;
case HID_REQ_SetReport:
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
{
Endpoint_ClearSETUP();
/* Wait until the LED report has been sent by the host */
while (!(Endpoint_IsOUTReceived()))
{
if (USB_DeviceState == DEVICE_STATE_Unattached)
return;
}
// Interface
switch (USB_ControlRequest.wIndex) {
case KEYBOARD_INTERFACE:
// TODO: test/check
/* Read in the LED report from the host */
keyboard_led_stats = Endpoint_Read_8();
break;
#ifdef MOUSE_ENABLE
case MOUSE_INTERFACE:
break;
#endif
#ifdef EXTRAKEY_ENABLE
case EXTRA_INTERFACE:
break;
#endif
case CONSOLE_INTERFACE:
break;
}
Endpoint_ClearOUT();
Endpoint_ClearStatusStage();
}
break;
}
}
/*******************************************************************************
* Host driver
******************************************************************************/
static uint8_t keyboard_leds(void)
{
return keyboard_led_stats;
}
static void send_keyboard(report_keyboard_t *report)
{
// TODO: handle NKRO report
/* Select the Keyboard Report Endpoint */
Endpoint_SelectEndpoint(KEYBOARD_IN_EPNUM);
/* Check if Keyboard Endpoint Ready for Read/Write */
if (Endpoint_IsReadWriteAllowed())
{
/* Write Keyboard Report Data */
Endpoint_Write_Stream_LE(report, sizeof(report_keyboard_t), NULL);
/* Finalize the stream transfer to send the last packet */
Endpoint_ClearIN();
}
keyboard_report_sent = *report;
}
static void send_mouse(report_mouse_t *report)
{
#ifdef MOUSE_ENABLE
/* Select the Mouse Report Endpoint */
Endpoint_SelectEndpoint(MOUSE_IN_EPNUM);
/* Check if Mouse Endpoint Ready for Read/Write */
if (Endpoint_IsReadWriteAllowed())
{
/* Write Mouse Report Data */
Endpoint_Write_Stream_LE(report, sizeof(report_mouse_t), NULL);
/* Finalize the stream transfer to send the last packet */
Endpoint_ClearIN();
}
mouse_report_sent = *report;
#endif
}
typedef struct {
uint8_t report_id;
uint16_t usage;
} __attribute__ ((packed)) report_extra_t;
static void send_system(uint16_t data)
{
Endpoint_SelectEndpoint(EXTRA_IN_EPNUM);
if (Endpoint_IsReadWriteAllowed()) {
report_extra_t r = {
.report_id = REPORT_ID_SYSTEM,
.usage = data
};
Endpoint_Write_Stream_LE(&r, sizeof(report_extra_t), NULL);
Endpoint_ClearIN();
}
}
static void send_consumer(uint16_t data)
{
Endpoint_SelectEndpoint(EXTRA_IN_EPNUM);
if (Endpoint_IsReadWriteAllowed()) {
report_extra_t r = {
.report_id = REPORT_ID_CONSUMER,
.usage = data
};
Endpoint_Write_Stream_LE(&r, sizeof(report_extra_t), NULL);
Endpoint_ClearIN();
}
}
/*******************************************************************************
* sendchar
******************************************************************************/
int8_t sendchar(uint8_t c)
{
if (USB_DeviceState != DEVICE_STATE_Configured)
return -1;
Endpoint_SelectEndpoint(CONSOLE_IN_EPNUM);
uint8_t timeout = 10;
uint16_t prevFN = USB_Device_GetFrameNumber();
while (!Endpoint_IsINReady()) {
switch (USB_DeviceState) {
case DEVICE_STATE_Unattached:
case DEVICE_STATE_Suspended:
return -1;
}
if (Endpoint_IsStalled())
return -1;
if (prevFN != USB_Device_GetFrameNumber()) {
if (!(timeout--))
return -1;
prevFN = USB_Device_GetFrameNumber();
}
}
Endpoint_Write_8(c);
// send when packet is full
if (!Endpoint_IsReadWriteAllowed())
Endpoint_ClearIN();
return 0;
}
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