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authorDrashna Jaelre <drashna@live.com>2019-08-02 14:02:40 -0700
committerskullydazed <skullydazed@users.noreply.github.com>2019-08-30 15:01:52 -0700
commitcf4575b94a3c65e6535a159fc71fc885aebc2620 (patch)
tree2354f2b7a200e02246a564afefedc32357e62b8e /lib/lufa/Projects/XPLAINBridge/XPLAINBridge.c
parent75ee8df19e0f14ba466f41ab673dde2fe2fdae9c (diff)
downloadqmk_firmware-cf4575b94a3c65e6535a159fc71fc885aebc2620.tar.gz
qmk_firmware-cf4575b94a3c65e6535a159fc71fc885aebc2620.zip
Fix the LUFA lib to use a submodule instead of just files (#6245)
* Remove LUFA files * Update descriptions for newer version of LUFA * Create PR6245.md * Fix CDC(Serial) type errors * Fix missed merge conflict for AUDIO_DTYPE_CSInterface
Diffstat (limited to 'lib/lufa/Projects/XPLAINBridge/XPLAINBridge.c')
-rw-r--r--lib/lufa/Projects/XPLAINBridge/XPLAINBridge.c292
1 files changed, 0 insertions, 292 deletions
diff --git a/lib/lufa/Projects/XPLAINBridge/XPLAINBridge.c b/lib/lufa/Projects/XPLAINBridge/XPLAINBridge.c
deleted file mode 100644
index d901af819..000000000
--- a/lib/lufa/Projects/XPLAINBridge/XPLAINBridge.c
+++ /dev/null
@@ -1,292 +0,0 @@
1/*
2 LUFA Library
3 Copyright (C) Dean Camera, 2017.
4
5 dean [at] fourwalledcubicle [dot] com
6 www.lufa-lib.org
7*/
8
9/*
10 Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com)
11
12 Permission to use, copy, modify, distribute, and sell this
13 software and its documentation for any purpose is hereby granted
14 without fee, provided that the above copyright notice appear in
15 all copies and that both that the copyright notice and this
16 permission notice and warranty disclaimer appear in supporting
17 documentation, and that the name of the author not be used in
18 advertising or publicity pertaining to distribution of the
19 software without specific, written prior permission.
20
21 The author disclaims all warranties with regard to this
22 software, including all implied warranties of merchantability
23 and fitness. In no event shall the author be liable for any
24 special, indirect or consequential damages or any damages
25 whatsoever resulting from loss of use, data or profits, whether
26 in an action of contract, negligence or other tortious action,
27 arising out of or in connection with the use or performance of
28 this software.
29*/
30
31/** \file
32 *
33 * Main source file for the XPLAINBridge project. This file contains the main tasks of
34 * the project and is responsible for the initial application hardware configuration.
35 */
36
37#include "XPLAINBridge.h"
38
39/** Current firmware mode, making the device behave as either a programmer or a USART bridge */
40bool CurrentFirmwareMode = MODE_USART_BRIDGE;
41
42/** LUFA CDC Class driver interface configuration and state information. This structure is
43 * passed to all CDC Class driver functions, so that multiple instances of the same class
44 * within a device can be differentiated from one another.
45 */
46USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface =
47 {
48 .Config =
49 {
50 .ControlInterfaceNumber = INTERFACE_ID_CDC_CCI,
51 .DataINEndpoint =
52 {
53 .Address = CDC_TX_EPADDR,
54 .Size = CDC_TXRX_EPSIZE,
55 .Banks = 1,
56 },
57 .DataOUTEndpoint =
58 {
59 .Address = CDC_RX_EPADDR,
60 .Size = CDC_TXRX_EPSIZE,
61 .Banks = 1,
62 },
63 .NotificationEndpoint =
64 {
65 .Address = CDC_NOTIFICATION_EPADDR,
66 .Size = CDC_NOTIFICATION_EPSIZE,
67 .Banks = 1,
68 },
69 },
70 };
71
72/** Circular buffer to hold data from the host before it is sent to the device via the serial port. */
73RingBuffer_t USBtoUART_Buffer;
74
75/** Underlying data buffer for \ref USBtoUART_Buffer, where the stored bytes are located. */
76static uint8_t USBtoUART_Buffer_Data[128];
77
78/** Circular buffer to hold data from the serial port before it is sent to the host. */
79RingBuffer_t UARTtoUSB_Buffer;
80
81/** Underlying data buffer for \ref UARTtoUSB_Buffer, where the stored bytes are located. */
82static uint8_t UARTtoUSB_Buffer_Data[128];
83
84
85/** Main program entry point. This routine contains the overall program flow, including initial
86 * setup of all components and the main program loop.
87 */
88int main(void)
89{
90 SetupHardware();
91
92 LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
93 GlobalInterruptEnable();
94
95 for (;;)
96 {
97 if (CurrentFirmwareMode == MODE_USART_BRIDGE)
98 UARTBridge_Task();
99 else
100 AVRISP_Task();
101
102 USB_USBTask();
103 }
104}
105
106void AVRISP_Task(void)
107{
108 /* Must be in the configured state for the AVRISP code to process data */
109 if (USB_DeviceState != DEVICE_STATE_Configured)
110 return;
111
112 V2Params_UpdateParamValues();
113
114 Endpoint_SelectEndpoint(AVRISP_DATA_OUT_EPADDR);
115
116 /* Check to see if a V2 Protocol command has been received */
117 if (Endpoint_IsOUTReceived())
118 {
119 LEDs_SetAllLEDs(LEDMASK_BUSY);
120
121 /* Pass off processing of the V2 Protocol command to the V2 Protocol handler */
122 V2Protocol_ProcessCommand();
123
124 LEDs_SetAllLEDs(LEDMASK_USB_READY);
125 }
126}
127
128void UARTBridge_Task(void)
129{
130 /* Must be in the configured state for the USART Bridge code to process data */
131 if (USB_DeviceState != DEVICE_STATE_Configured)
132 return;
133
134 /* Only try to read in bytes from the CDC interface if the transmit buffer is not full */
135 if (!(RingBuffer_IsFull(&USBtoUART_Buffer)))
136 {
137 int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
138
139 /* Read bytes from the USB OUT endpoint into the UART transmit buffer */
140 if (!(ReceivedByte < 0))
141 RingBuffer_Insert(&USBtoUART_Buffer, ReceivedByte);
142 }
143
144 /* Check if the UART receive buffer flush timer has expired or buffer is nearly full */
145 uint16_t BufferCount = RingBuffer_GetCount(&UARTtoUSB_Buffer);
146 if ((TIFR0 & (1 << TOV0)) || (BufferCount > 200))
147 {
148 /* Clear flush timer expiry flag */
149 TIFR0 |= (1 << TOV0);
150
151 /* Read bytes from the USART receive buffer into the USB IN endpoint */
152 while (BufferCount--)
153 {
154 /* Try to send the next byte of data to the host, abort if there is an error without dequeuing */
155 if (CDC_Device_SendByte(&VirtualSerial_CDC_Interface,
156 RingBuffer_Peek(&UARTtoUSB_Buffer)) != ENDPOINT_READYWAIT_NoError)
157 {
158 break;
159 }
160
161 /* Dequeue the already sent byte from the buffer now we have confirmed that no transmission error occurred */
162 RingBuffer_Remove(&UARTtoUSB_Buffer);
163 }
164 }
165
166 CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
167}
168
169/** Configures the board hardware and chip peripherals for the demo's functionality. */
170void SetupHardware(void)
171{
172#if (ARCH == ARCH_AVR8)
173 /* Disable watchdog if enabled by bootloader/fuses */
174 MCUSR &= ~(1 << WDRF);
175 wdt_disable();
176
177 /* Disable clock division */
178 clock_prescale_set(clock_div_1);
179#endif
180
181 /* Disable JTAG debugging */
182 MCUCR |= (1 << JTD);
183 MCUCR |= (1 << JTD);
184
185 /* Enable pull-up on the JTAG TDI pin so we can use it to select the mode */
186 PORTF |= (1 << 7);
187 Delay_MS(10);
188
189 /* Select the firmware mode based on the JTD pin's value */
190 CurrentFirmwareMode = (PINF & (1 << 7)) ? MODE_USART_BRIDGE : MODE_PDI_PROGRAMMER;
191
192 /* Re-enable JTAG debugging */
193 MCUCR &= ~(1 << JTD);
194 MCUCR &= ~(1 << JTD);
195
196 /* Hardware Initialization */
197 SoftUART_Init();
198 LEDs_Init();
199 #if defined(RESET_TOGGLES_LIBUSB_COMPAT)
200 UpdateCurrentCompatibilityMode();
201 #endif
202
203 /* USB Stack Initialization */
204 USB_Init();
205}
206
207/** Event handler for the library USB Configuration Changed event. */
208void EVENT_USB_Device_ConfigurationChanged(void)
209{
210 bool ConfigSuccess = true;
211
212 /* Configure the device endpoints according to the selected mode */
213 if (CurrentFirmwareMode == MODE_USART_BRIDGE)
214 {
215 ConfigSuccess &= CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface);
216
217 /* Configure the UART flush timer - run at Fcpu/1024 for maximum interval before overflow */
218 TCCR0B = ((1 << CS02) | (1 << CS00));
219
220 /* Initialize ring buffers used to hold serial data between USB and software UART interfaces */
221 RingBuffer_InitBuffer(&USBtoUART_Buffer, USBtoUART_Buffer_Data, sizeof(USBtoUART_Buffer_Data));
222 RingBuffer_InitBuffer(&UARTtoUSB_Buffer, UARTtoUSB_Buffer_Data, sizeof(UARTtoUSB_Buffer_Data));
223
224 /* Start the software USART */
225 SoftUART_Init();
226 }
227 else
228 {
229 ConfigSuccess &= Endpoint_ConfigureEndpoint(AVRISP_DATA_OUT_EPADDR, EP_TYPE_BULK, AVRISP_DATA_EPSIZE, 1);
230
231 if ((AVRISP_DATA_IN_EPADDR & ENDPOINT_EPNUM_MASK) != (AVRISP_DATA_OUT_EPADDR & ENDPOINT_EPNUM_MASK))
232 ConfigSuccess &= Endpoint_ConfigureEndpoint(AVRISP_DATA_IN_EPADDR, EP_TYPE_BULK, AVRISP_DATA_EPSIZE, 1);
233
234 /* Configure the V2 protocol packet handler */
235 V2Protocol_Init();
236 }
237
238 LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
239}
240
241/** Event handler for the library USB Control Request reception event. */
242void EVENT_USB_Device_ControlRequest(void)
243{
244 if (CurrentFirmwareMode == MODE_USART_BRIDGE)
245 CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface);
246}
247
248/** Event handler for the library USB Connection event. */
249void EVENT_USB_Device_Connect(void)
250{
251 LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
252}
253
254/** Event handler for the library USB Disconnection event. */
255void EVENT_USB_Device_Disconnect(void)
256{
257 LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
258}
259
260/** Event handler for the CDC Class driver Line Encoding Changed event.
261 *
262 * \param[in] CDCInterfaceInfo Pointer to the CDC class interface configuration structure being referenced
263 */
264void EVENT_CDC_Device_LineEncodingChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
265{
266 /* Change the software UART's baud rate to match the new baud rate */
267 SoftUART_SetBaud(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS);
268}
269
270/** This function is called by the library when in device mode, and must be overridden (see library "USB Descriptors"
271 * documentation) by the application code so that the address and size of a requested descriptor can be given
272 * to the USB library. When the device receives a Get Descriptor request on the control endpoint, this function
273 * is called so that the descriptor details can be passed back and the appropriate descriptor sent back to the
274 * USB host.
275 *
276 * \param[in] wValue Descriptor type and index to retrieve
277 * \param[in] wIndex Sub-index to retrieve (such as a localized string language)
278 * \param[out] DescriptorAddress Address of the retrieved descriptor
279 *
280 * \return Length of the retrieved descriptor in bytes, or NO_DESCRIPTOR if the descriptor was not found
281 */
282uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
283 const uint16_t wIndex,
284 const void** const DescriptorAddress)
285{
286 /* Return the correct descriptors based on the selected mode */
287 if (CurrentFirmwareMode == MODE_USART_BRIDGE)
288 return USART_GetDescriptor(wValue, wIndex, DescriptorAddress);
289 else
290 return AVRISP_GetDescriptor(wValue, wIndex, DescriptorAddress);
291}
292
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