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-rw-r--r--lib/chibios-contrib/testhal/KINETIS/FRDM-K20D50M/USB_SERIAL/usbcfg.c337
1 files changed, 337 insertions, 0 deletions
diff --git a/lib/chibios-contrib/testhal/KINETIS/FRDM-K20D50M/USB_SERIAL/usbcfg.c b/lib/chibios-contrib/testhal/KINETIS/FRDM-K20D50M/USB_SERIAL/usbcfg.c
new file mode 100644
index 000000000..c25a561a1
--- /dev/null
+++ b/lib/chibios-contrib/testhal/KINETIS/FRDM-K20D50M/USB_SERIAL/usbcfg.c
@@ -0,0 +1,337 @@
1/*
2 (C) 2015-2016 Jonathan Struebel
3 Based on ChibiOS USB_CDC demo - Copyright (C) 2006..2016 Giovanni Di Sirio
4
5 Licensed under the Apache License, Version 2.0 (the "License");
6 you may not use this file except in compliance with the License.
7 You may obtain a copy of the License at
8
9 http://www.apache.org/licenses/LICENSE-2.0
10
11 Unless required by applicable law or agreed to in writing, software
12 distributed under the License is distributed on an "AS IS" BASIS,
13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 See the License for the specific language governing permissions and
15 limitations under the License.
16*/
17
18#include "hal.h"
19
20/* Virtual serial port over USB.*/
21SerialUSBDriver SDU1;
22
23/*
24 * Endpoints to be used for USBD1.
25 */
26#define USBD1_DATA_REQUEST_EP 1
27#define USBD1_DATA_AVAILABLE_EP 1
28#define USBD1_INTERRUPT_REQUEST_EP 2
29
30/*
31 * USB Device Descriptor.
32 */
33static const uint8_t vcom_device_descriptor_data[18] = {
34 USB_DESC_DEVICE (0x0110, /* bcdUSB (1.1). */
35 0x02, /* bDeviceClass (CDC). */
36 0x00, /* bDeviceSubClass. */
37 0x00, /* bDeviceProtocol. */
38 0x40, /* bMaxPacketSize. */
39 0x0179, /* idVendor. */
40 0x0001, /* idProduct. */
41 0x0200, /* bcdDevice. */
42 1, /* iManufacturer. */
43 2, /* iProduct. */
44 3, /* iSerialNumber. */
45 1) /* bNumConfigurations. */
46};
47
48/*
49 * Device Descriptor wrapper.
50 */
51static const USBDescriptor vcom_device_descriptor = {
52 sizeof vcom_device_descriptor_data,
53 vcom_device_descriptor_data
54};
55
56/* Configuration Descriptor tree for a CDC.*/
57static const uint8_t vcom_configuration_descriptor_data[67] = {
58 /* Configuration Descriptor.*/
59 USB_DESC_CONFIGURATION(67, /* wTotalLength. */
60 0x02, /* bNumInterfaces. */
61 0x01, /* bConfigurationValue. */
62 0, /* iConfiguration. */
63 0xC0, /* bmAttributes (self powered). */
64 50), /* bMaxPower (100mA). */
65 /* Interface Descriptor.*/
66 USB_DESC_INTERFACE (0x00, /* bInterfaceNumber. */
67 0x00, /* bAlternateSetting. */
68 0x01, /* bNumEndpoints. */
69 0x02, /* bInterfaceClass (Communications
70 Interface Class, CDC section
71 4.2). */
72 0x02, /* bInterfaceSubClass (Abstract
73 Control Model, CDC section 4.3). */
74 0x01, /* bInterfaceProtocol (AT commands,
75 CDC section 4.4). */
76 0), /* iInterface. */
77 /* Header Functional Descriptor (CDC section 5.2.3).*/
78 USB_DESC_BYTE (5), /* bLength. */
79 USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */
80 USB_DESC_BYTE (0x00), /* bDescriptorSubtype (Header
81 Functional Descriptor. */
82 USB_DESC_BCD (0x0110), /* bcdCDC. */
83 /* Call Management Functional Descriptor. */
84 USB_DESC_BYTE (5), /* bFunctionLength. */
85 USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */
86 USB_DESC_BYTE (0x01), /* bDescriptorSubtype (Call Management
87 Functional Descriptor). */
88 USB_DESC_BYTE (0x00), /* bmCapabilities (D0+D1). */
89 USB_DESC_BYTE (0x01), /* bDataInterface. */
90 /* ACM Functional Descriptor.*/
91 USB_DESC_BYTE (4), /* bFunctionLength. */
92 USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */
93 USB_DESC_BYTE (0x02), /* bDescriptorSubtype (Abstract
94 Control Management Descriptor). */
95 USB_DESC_BYTE (0x02), /* bmCapabilities. */
96 /* Union Functional Descriptor.*/
97 USB_DESC_BYTE (5), /* bFunctionLength. */
98 USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */
99 USB_DESC_BYTE (0x06), /* bDescriptorSubtype (Union
100 Functional Descriptor). */
101 USB_DESC_BYTE (0x00), /* bMasterInterface (Communication
102 Class Interface). */
103 USB_DESC_BYTE (0x01), /* bSlaveInterface0 (Data Class
104 Interface). */
105 /* Endpoint 2 Descriptor.*/
106 USB_DESC_ENDPOINT (USBD1_INTERRUPT_REQUEST_EP|0x80,
107 0x03, /* bmAttributes (Interrupt). */
108 0x0008, /* wMaxPacketSize. */
109 0xFF), /* bInterval. */
110 /* Interface Descriptor.*/
111 USB_DESC_INTERFACE (0x01, /* bInterfaceNumber. */
112 0x00, /* bAlternateSetting. */
113 0x02, /* bNumEndpoints. */
114 0x0A, /* bInterfaceClass (Data Class
115 Interface, CDC section 4.5). */
116 0x00, /* bInterfaceSubClass (CDC section
117 4.6). */
118 0x00, /* bInterfaceProtocol (CDC section
119 4.7). */
120 0x00), /* iInterface. */
121 /* Endpoint 1 Descriptor.*/
122 USB_DESC_ENDPOINT (USBD1_DATA_AVAILABLE_EP, /* bEndpointAddress.*/
123 0x02, /* bmAttributes (Bulk). */
124 0x0040, /* wMaxPacketSize. */
125 0x00), /* bInterval. */
126 /* Endpoint 1 Descriptor.*/
127 USB_DESC_ENDPOINT (USBD1_DATA_REQUEST_EP|0x80, /* bEndpointAddress.*/
128 0x02, /* bmAttributes (Bulk). */
129 0x0040, /* wMaxPacketSize. */
130 0x00) /* bInterval. */
131};
132
133/*
134 * Configuration Descriptor wrapper.
135 */
136static const USBDescriptor vcom_configuration_descriptor = {
137 sizeof vcom_configuration_descriptor_data,
138 vcom_configuration_descriptor_data
139};
140
141/*
142 * U.S. English language identifier.
143 */
144static const uint8_t vcom_string0[] = {
145 USB_DESC_BYTE(4), /* bLength. */
146 USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
147 USB_DESC_WORD(0x0409) /* wLANGID (U.S. English). */
148};
149
150/*
151 * Vendor string.
152 */
153static const uint8_t vcom_string1[] = {
154 USB_DESC_BYTE(2+2*7), /* bLength. */
155 USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
156 'N', 0, 'o', 0, 'p', 0, 'e', 0, 'L', 0, 'a', 0, 'b', 0,
157};
158
159/*
160 * Device Description string.
161 */
162static const uint8_t vcom_string2[] = {
163 USB_DESC_BYTE(2+5*2), /* bLength. */
164 USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
165 'C', 0, 'h', 0, 'T', 0, 's', 0, 'y', 0,
166};
167
168/*
169 * Serial Number string.
170 */
171static const uint8_t vcom_string3[] = {
172 USB_DESC_BYTE(8), /* bLength. */
173 USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
174 '0' + CH_KERNEL_MAJOR, 0,
175 '0' + CH_KERNEL_MINOR, 0,
176 '0' + CH_KERNEL_PATCH, 0
177};
178
179/*
180 * Strings wrappers array.
181 */
182static const USBDescriptor vcom_strings[] = {
183 {sizeof vcom_string0, vcom_string0},
184 {sizeof vcom_string1, vcom_string1},
185 {sizeof vcom_string2, vcom_string2},
186 {sizeof vcom_string3, vcom_string3}
187};
188
189/*
190 * Handles the GET_DESCRIPTOR callback. All required descriptors must be
191 * handled here.
192 */
193static const USBDescriptor *get_descriptor(USBDriver *usbp,
194 uint8_t dtype,
195 uint8_t dindex,
196 uint16_t lang) {
197 (void)usbp;
198 (void)lang;
199 switch (dtype) {
200 case USB_DESCRIPTOR_DEVICE:
201 return &vcom_device_descriptor;
202 case USB_DESCRIPTOR_CONFIGURATION:
203 return &vcom_configuration_descriptor;
204 case USB_DESCRIPTOR_STRING:
205 if (dindex < 4)
206 return &vcom_strings[dindex];
207 }
208 return NULL;
209}
210
211/**
212 * @brief IN EP1 state.
213 */
214static USBInEndpointState ep1instate;
215
216/**
217 * @brief OUT EP1 state.
218 */
219static USBOutEndpointState ep1outstate;
220
221/**
222 * @brief EP1 initialization structure (both IN and OUT).
223 */
224static const USBEndpointConfig ep1config = {
225 USB_EP_MODE_TYPE_BULK,
226 NULL,
227 sduDataTransmitted,
228 sduDataReceived,
229 0x0040,
230 0x0040,
231 &ep1instate,
232 &ep1outstate,
233 2,
234 NULL
235};
236
237/**
238 * @brief IN EP2 state.
239 */
240static USBInEndpointState ep2instate;
241
242/**
243 * @brief EP2 initialization structure (IN only).
244 */
245static const USBEndpointConfig ep2config = {
246 USB_EP_MODE_TYPE_INTR,
247 NULL,
248 sduInterruptTransmitted,
249 NULL,
250 0x0010,
251 0x0000,
252 &ep2instate,
253 NULL,
254 1,
255 NULL
256};
257
258/*
259 * Handles the USB driver global events.
260 */
261static void usb_event(USBDriver *usbp, usbevent_t event) {
262 extern SerialUSBDriver SDU1;
263
264 switch (event) {
265 case USB_EVENT_ADDRESS:
266 return;
267 case USB_EVENT_CONFIGURED:
268 chSysLockFromISR();
269
270 /* Enables the endpoints specified into the configuration.
271 Note, this callback is invoked from an ISR so I-Class functions
272 must be used.*/
273 usbInitEndpointI(usbp, USBD1_DATA_REQUEST_EP, &ep1config);
274 usbInitEndpointI(usbp, USBD1_INTERRUPT_REQUEST_EP, &ep2config);
275
276 /* Resetting the state of the CDC subsystem.*/
277 sduConfigureHookI(&SDU1);
278
279 chSysUnlockFromISR();
280 return;
281 case USB_EVENT_RESET:
282 /* Falls into. */
283 case USB_EVENT_UNCONFIGURED:
284 /* Falls into. */
285 case USB_EVENT_SUSPEND:
286 chSysLockFromISR();
287
288 /* Disconnection event on suspend.*/
289 sduSuspendHookI(&SDU1);
290
291 chSysUnlockFromISR();
292 return;
293 case USB_EVENT_WAKEUP:
294 chSysLockFromISR();
295
296 /* Disconnection event on suspend */
297 sduWakeupHookI(&SDU1);
298
299 chSysUnlockFromISR();
300 return;
301 case USB_EVENT_STALLED:
302 return;
303 }
304 return;
305}
306
307/*
308 * Handles the USB driver global events.
309 */
310static void sof_handler(USBDriver *usbp) {
311
312 (void)usbp;
313
314 osalSysLockFromISR();
315 sduSOFHookI(&SDU1);
316 osalSysUnlockFromISR();
317}
318
319/*
320 * USB driver configuration.
321 */
322const USBConfig usbcfg = {
323 usb_event,
324 get_descriptor,
325 sduRequestsHook,
326 sof_handler
327};
328
329/*
330 * Serial over USB driver configuration.
331 */
332const SerialUSBConfig serusbcfg = {
333 &USBD1,
334 USBD1_DATA_REQUEST_EP,
335 USBD1_DATA_AVAILABLE_EP,
336 USBD1_INTERRUPT_REQUEST_EP
337};
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-30 14:01:25 +0100