1 /*
2 * Copyright (c) 2024, sakumisu
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6 #include "usbh_core.h"
7 #include "usbh_bluetooth.h"
8
9 #undef USB_DBG_TAG
10 #define USB_DBG_TAG "usbh_bluetooth"
11 #include "usb_log.h"
12
13 #define DEV_FORMAT "/dev/bluetooth"
14
15 static struct usbh_bluetooth g_bluetooth_class;
16
17 #ifdef CONFIG_USBHOST_BLUETOOTH_HCI_H4
18 USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t g_bluetooth_tx_buf[USB_ALIGN_UP(CONFIG_USBHOST_BLUETOOTH_TX_SIZE, CONFIG_USB_ALIGN_SIZE)];
19 USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t g_bluetooth_rx_buf[USB_ALIGN_UP(CONFIG_USBHOST_BLUETOOTH_RX_SIZE, CONFIG_USB_ALIGN_SIZE)];
20 #else
21 USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t g_bluetooth_cmd_buf[USB_ALIGN_UP(256, CONFIG_USB_ALIGN_SIZE)];
22 USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t g_bluetooth_evt_buf[USB_ALIGN_UP(256, CONFIG_USB_ALIGN_SIZE)];
23 USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t g_bluetooth_tx_buf[USB_ALIGN_UP(CONFIG_USBHOST_BLUETOOTH_TX_SIZE, CONFIG_USB_ALIGN_SIZE)];
24 USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t g_bluetooth_rx_buf[USB_ALIGN_UP(CONFIG_USBHOST_BLUETOOTH_RX_SIZE, CONFIG_USB_ALIGN_SIZE)];
25 #endif
26
usbh_bluetooth_connect(struct usbh_hubport * hport,uint8_t intf)27 static int usbh_bluetooth_connect(struct usbh_hubport *hport, uint8_t intf)
28 {
29 struct usb_endpoint_descriptor *ep_desc;
30 int ret = 0;
31 #ifndef CONFIG_USBHOST_BLUETOOTH_HCI_H4
32 uint8_t mult;
33 uint16_t mps;
34 #endif
35
36 struct usbh_bluetooth *bluetooth_class = &g_bluetooth_class;
37
38 #ifndef CONFIG_USBHOST_BLUETOOTH_HCI_H4
39 if (intf != 0) {
40 return 0;
41 }
42 #endif
43
44 memset(bluetooth_class, 0, sizeof(struct usbh_bluetooth));
45
46 bluetooth_class->hport = hport;
47 bluetooth_class->intf = intf;
48 #ifndef CONFIG_USBHOST_BLUETOOTH_HCI_H4
49 bluetooth_class->num_of_intf_altsettings = hport->config.intf[intf + 1].altsetting_num;
50 #endif
51 hport->config.intf[intf].priv = bluetooth_class;
52
53 for (uint8_t i = 0; i < hport->config.intf[intf].altsetting[0].intf_desc.bNumEndpoints; i++) {
54 ep_desc = &hport->config.intf[intf].altsetting[0].ep[i].ep_desc;
55 #ifndef CONFIG_USBHOST_BLUETOOTH_HCI_H4
56 if (USB_GET_ENDPOINT_TYPE(ep_desc->bmAttributes) == USB_ENDPOINT_TYPE_INTERRUPT) {
57 if (ep_desc->bEndpointAddress & 0x80) {
58 USBH_EP_INIT(bluetooth_class->intin, ep_desc);
59 } else {
60 return -USB_ERR_NOTSUPP;
61 }
62 } else {
63 #endif
64 if (ep_desc->bEndpointAddress & 0x80) {
65 USBH_EP_INIT(bluetooth_class->bulkin, ep_desc);
66 } else {
67 USBH_EP_INIT(bluetooth_class->bulkout, ep_desc);
68 }
69 #ifndef CONFIG_USBHOST_BLUETOOTH_HCI_H4
70 }
71 #endif
72 }
73 #ifndef CONFIG_USBHOST_BLUETOOTH_HCI_H4
74 USB_LOG_INFO("Num of altsettings:%u\r\n", bluetooth_class->num_of_intf_altsettings);
75
76 for (uint8_t i = 0; i < bluetooth_class->num_of_intf_altsettings; i++) {
77 USB_LOG_INFO("Altsetting:%u\r\n", i);
78 for (uint8_t j = 0; j < hport->config.intf[intf + 1].altsetting[i].intf_desc.bNumEndpoints; j++) {
79 ep_desc = &bluetooth_class->hport->config.intf[intf + 1].altsetting[i].ep[j].ep_desc;
80
81 mult = USB_GET_MULT(ep_desc->wMaxPacketSize);
82 mps = USB_GET_MAXPACKETSIZE(ep_desc->wMaxPacketSize);
83
84 USB_LOG_INFO("\tEp=%02x Attr=%02u Mps=%d Interval=%02u Mult=%02u\r\n",
85 ep_desc->bEndpointAddress,
86 ep_desc->bmAttributes,
87 mps,
88 ep_desc->bInterval,
89 mult);
90 }
91 }
92
93 ret = usbh_set_interface(hport, intf, 0);
94 if (ret < 0) {
95 return ret;
96 }
97 USB_LOG_INFO("Bluetooth select altsetting 0\r\n");
98 #endif
99 strncpy(hport->config.intf[intf].devname, DEV_FORMAT, CONFIG_USBHOST_DEV_NAMELEN);
100 USB_LOG_INFO("Register Bluetooth Class:%s\r\n", hport->config.intf[intf].devname);
101 usbh_bluetooth_run(bluetooth_class);
102 return ret;
103 }
104
usbh_bluetooth_disconnect(struct usbh_hubport * hport,uint8_t intf)105 static int usbh_bluetooth_disconnect(struct usbh_hubport *hport, uint8_t intf)
106 {
107 int ret = 0;
108
109 struct usbh_bluetooth *bluetooth_class = (struct usbh_bluetooth *)hport->config.intf[intf].priv;
110
111 if (hport->config.config_desc.bNumInterfaces == (intf + 1)) {
112 return 0;
113 }
114
115 if (bluetooth_class) {
116 if (bluetooth_class->bulkin) {
117 usbh_kill_urb(&bluetooth_class->bulkin_urb);
118 }
119
120 if (bluetooth_class->bulkout) {
121 usbh_kill_urb(&bluetooth_class->bulkout_urb);
122 }
123 #ifndef CONFIG_USBHOST_BLUETOOTH_HCI_H4
124 if (bluetooth_class->intin) {
125 usbh_kill_urb(&bluetooth_class->intin_urb);
126 }
127
128 // if (bluetooth_class->isoin) {
129 // usbh_kill_urb(&bluetooth_class->isoin_urb);
130 // }
131
132 // if (bluetooth_class->isoin) {
133 // usbh_kill_urb(&bluetooth_class->isoinin_urb);
134 // }
135 #endif
136 if (hport->config.intf[intf].devname[0] != '\0') {
137 usb_osal_thread_schedule_other();
138 USB_LOG_INFO("Unregister Bluetooth Class:%s\r\n", hport->config.intf[intf].devname);
139 usbh_bluetooth_stop(bluetooth_class);
140 }
141
142 memset(bluetooth_class, 0, sizeof(struct usbh_bluetooth));
143 }
144
145 return ret;
146 }
147
148 #ifdef CONFIG_USBHOST_BLUETOOTH_HCI_LOG
usbh_bluetooth_hci_dump(uint8_t * data,uint32_t len)149 static void usbh_bluetooth_hci_dump(uint8_t *data, uint32_t len)
150 {
151 uint32_t i = 0;
152
153 for (i = 0; i < len; i++) {
154 if (i % 16 == 0) {
155 USB_LOG_RAW("\r\n");
156 }
157
158 USB_LOG_RAW("%02x ", data[i]);
159 }
160
161 USB_LOG_RAW("\r\n");
162 }
163 #else
164 #define usbh_bluetooth_hci_dump(data, len)
165 #endif
166
usbh_bluetooth_hci_bulk_out(uint8_t * buffer,uint32_t buflen)167 static int usbh_bluetooth_hci_bulk_out(uint8_t *buffer, uint32_t buflen)
168 {
169 struct usbh_bluetooth *bluetooth_class = &g_bluetooth_class;
170 struct usbh_urb *urb = &bluetooth_class->bulkout_urb;
171 int ret;
172
173 usbh_bulk_urb_fill(urb, bluetooth_class->hport, bluetooth_class->bulkout, buffer, buflen, USB_OSAL_WAITING_FOREVER, NULL, NULL);
174 ret = usbh_submit_urb(urb);
175 if (ret == 0) {
176 ret = urb->actual_length;
177 }
178 return ret;
179 }
180
181 #ifdef CONFIG_USBHOST_BLUETOOTH_HCI_H4
usbh_bluetooth_hci_write(uint8_t hci_type,uint8_t * buffer,uint32_t buflen)182 int usbh_bluetooth_hci_write(uint8_t hci_type, uint8_t *buffer, uint32_t buflen)
183 {
184 int ret;
185
186 g_bluetooth_tx_buf[0] = hci_type;
187 memcpy(&g_bluetooth_tx_buf[1], buffer, buflen);
188 usbh_bluetooth_hci_dump(g_bluetooth_tx_buf, buflen + 1);
189 ret = usbh_bluetooth_hci_bulk_out(g_bluetooth_tx_buf, buflen + 1);
190 return ret;
191 }
192
usbh_bluetooth_hci_rx_thread(CONFIG_USB_OSAL_THREAD_SET_ARGV)193 void usbh_bluetooth_hci_rx_thread(CONFIG_USB_OSAL_THREAD_SET_ARGV)
194 {
195 int ret;
196 uint32_t ep_mps;
197 uint8_t retry = 0;
198 uint16_t actual_len = 0;
199
200 ep_mps = USB_GET_MAXPACKETSIZE(g_bluetooth_class.bulkin->wMaxPacketSize);
201
202 USB_LOG_INFO("Create hc rx thread\r\n");
203 while (1) {
204 usbh_bulk_urb_fill(&g_bluetooth_class.bulkin_urb, g_bluetooth_class.hport, g_bluetooth_class.bulkin, &g_bluetooth_rx_buf[actual_len], ep_mps, USB_OSAL_WAITING_FOREVER, NULL, NULL);
205 ret = usbh_submit_urb(&g_bluetooth_class.bulkin_urb);
206 if (ret < 0) {
207 if (ret == -USB_ERR_SHUTDOWN) {
208 goto delete;
209 } else {
210 retry++;
211 if (retry == 3) {
212 retry = 0;
213 goto delete;
214 }
215 continue;
216 }
217 }
218 actual_len += g_bluetooth_class.bulkin_urb.actual_length;
219 if (g_bluetooth_class.bulkin_urb.actual_length != ep_mps) {
220 usbh_bluetooth_hci_dump(g_bluetooth_rx_buf, actual_len);
221 usbh_bluetooth_hci_read_callback(g_bluetooth_rx_buf, actual_len);
222 actual_len = 0;
223 } else {
224 /* read continue util read short packet */
225 }
226 }
227 // clang-format off
228 delete :
229 USB_LOG_INFO("Delete hc acl rx thread\r\n");
230 usb_osal_thread_delete(NULL);
231 // clang-format on
232 }
233
234 #else
usbh_bluetooth_hci_cmd(uint8_t * buffer,uint32_t buflen)235 static int usbh_bluetooth_hci_cmd(uint8_t *buffer, uint32_t buflen)
236 {
237 struct usbh_bluetooth *bluetooth_class = &g_bluetooth_class;
238 struct usb_setup_packet *setup;
239
240 if (!bluetooth_class || !bluetooth_class->hport) {
241 return -USB_ERR_INVAL;
242 }
243 setup = bluetooth_class->hport->setup;
244
245 setup->bmRequestType = USB_REQUEST_DIR_OUT | USB_REQUEST_CLASS | USB_REQUEST_RECIPIENT_DEVICE;
246 setup->bRequest = 0x00;
247 setup->wValue = 0;
248 setup->wIndex = bluetooth_class->intf;
249 setup->wLength = buflen;
250
251 return usbh_control_transfer(bluetooth_class->hport, setup, buffer);
252 }
253
usbh_bluetooth_hci_write(uint8_t hci_type,uint8_t * buffer,uint32_t buflen)254 int usbh_bluetooth_hci_write(uint8_t hci_type, uint8_t *buffer, uint32_t buflen)
255 {
256 int ret;
257
258 if (hci_type == USB_BLUETOOTH_HCI_CMD) {
259 g_bluetooth_cmd_buf[0] = USB_BLUETOOTH_HCI_CMD;
260 memcpy(&g_bluetooth_cmd_buf[1], buffer, buflen);
261 usbh_bluetooth_hci_dump(g_bluetooth_cmd_buf, buflen + 1);
262 ret = usbh_bluetooth_hci_cmd(&g_bluetooth_cmd_buf[1], buflen);
263 } else if (hci_type == USB_BLUETOOTH_HCI_ACL) {
264 g_bluetooth_tx_buf[0] = USB_BLUETOOTH_HCI_ACL;
265 memcpy(&g_bluetooth_tx_buf[1], buffer, buflen);
266 usbh_bluetooth_hci_dump(g_bluetooth_tx_buf, buflen + 1);
267 ret = usbh_bluetooth_hci_bulk_out(&g_bluetooth_tx_buf[1], buflen);
268 } else {
269 ret = -1;
270 }
271
272 return ret;
273 }
274
usbh_bluetooth_hci_evt_rx_thread(CONFIG_USB_OSAL_THREAD_SET_ARGV)275 void usbh_bluetooth_hci_evt_rx_thread(CONFIG_USB_OSAL_THREAD_SET_ARGV)
276 {
277 int ret;
278 uint32_t ep_mps;
279 uint32_t interval;
280 uint8_t retry = 0;
281 uint16_t actual_len = 0;
282
283 ep_mps = USB_GET_MAXPACKETSIZE(g_bluetooth_class.intin->wMaxPacketSize);
284 interval = g_bluetooth_class.intin->bInterval;
285
286 USB_LOG_INFO("Create hc event rx thread\r\n");
287 while (1) {
288 usbh_int_urb_fill(&g_bluetooth_class.intin_urb, g_bluetooth_class.hport, g_bluetooth_class.intin, &g_bluetooth_evt_buf[1 + actual_len], ep_mps, USB_OSAL_WAITING_FOREVER, NULL, NULL);
289 ret = usbh_submit_urb(&g_bluetooth_class.intin_urb);
290 if (ret < 0) {
291 if (ret == -USB_ERR_SHUTDOWN) {
292 goto delete;
293 } else if (ret == -USB_ERR_NAK) {
294 usb_osal_msleep(interval);
295 continue;
296 } else {
297 retry++;
298 if (retry == 3) {
299 retry = 0;
300 goto delete;
301 }
302 usb_osal_msleep(interval);
303 continue;
304 }
305 }
306 actual_len += g_bluetooth_class.intin_urb.actual_length;
307 if (g_bluetooth_class.intin_urb.actual_length != ep_mps) {
308 g_bluetooth_evt_buf[0] = USB_BLUETOOTH_HCI_EVT;
309 usbh_bluetooth_hci_dump(g_bluetooth_evt_buf, actual_len + 1);
310 usbh_bluetooth_hci_read_callback(g_bluetooth_evt_buf, actual_len + 1);
311 actual_len = 0;
312 } else {
313 /* read continue util read short packet */
314 }
315 usb_osal_msleep(interval);
316 }
317 // clang-format off
318 delete :
319 USB_LOG_INFO("Delete hc event rx thread\r\n");
320 usb_osal_thread_delete(NULL);
321 // clang-format on
322 }
323
usbh_bluetooth_hci_acl_rx_thread(CONFIG_USB_OSAL_THREAD_SET_ARGV)324 void usbh_bluetooth_hci_acl_rx_thread(CONFIG_USB_OSAL_THREAD_SET_ARGV)
325 {
326 int ret;
327 uint32_t ep_mps;
328 uint8_t retry = 0;
329 uint16_t actual_len = 0;
330
331 ep_mps = USB_GET_MAXPACKETSIZE(g_bluetooth_class.bulkin->wMaxPacketSize);
332
333 USB_LOG_INFO("Create hc acl rx thread\r\n");
334 while (1) {
335 usbh_bulk_urb_fill(&g_bluetooth_class.bulkin_urb, g_bluetooth_class.hport, g_bluetooth_class.bulkin, &g_bluetooth_rx_buf[1 + actual_len], ep_mps, USB_OSAL_WAITING_FOREVER, NULL, NULL);
336 ret = usbh_submit_urb(&g_bluetooth_class.bulkin_urb);
337 if (ret < 0) {
338 if (ret == -USB_ERR_SHUTDOWN) {
339 goto delete;
340 } else {
341 retry++;
342 if (retry == 3) {
343 retry = 0;
344 goto delete;
345 }
346 continue;
347 }
348 }
349 actual_len += g_bluetooth_class.bulkin_urb.actual_length;
350 if (g_bluetooth_class.bulkin_urb.actual_length != ep_mps) {
351 g_bluetooth_rx_buf[0] = USB_BLUETOOTH_HCI_ACL;
352 usbh_bluetooth_hci_dump(g_bluetooth_rx_buf, actual_len + 1);
353 usbh_bluetooth_hci_read_callback(g_bluetooth_rx_buf, actual_len + 1);
354 actual_len = 0;
355 } else {
356 /* read continue util read short packet */
357 }
358 }
359 // clang-format off
360 delete :
361 USB_LOG_INFO("Delete hc acl rx thread\r\n");
362 usb_osal_thread_delete(NULL);
363 // clang-format on
364 }
365 #endif
366
usbh_bluetooth_hci_read_callback(uint8_t * data,uint32_t len)367 __WEAK void usbh_bluetooth_hci_read_callback(uint8_t *data, uint32_t len)
368 {
369 (void)data;
370 (void)len;
371 }
372
usbh_bluetooth_run(struct usbh_bluetooth * bluetooth_class)373 __WEAK void usbh_bluetooth_run(struct usbh_bluetooth *bluetooth_class)
374 {
375 (void)bluetooth_class;
376 }
377
usbh_bluetooth_stop(struct usbh_bluetooth * bluetooth_class)378 __WEAK void usbh_bluetooth_stop(struct usbh_bluetooth *bluetooth_class)
379 {
380 (void)bluetooth_class;
381 }
382
383 static const struct usbh_class_driver bluetooth_class_driver = {
384 .driver_name = "bluetooth",
385 .connect = usbh_bluetooth_connect,
386 .disconnect = usbh_bluetooth_disconnect
387 };
388
389 #ifdef CONFIG_USBHOST_BLUETOOTH_HCI_H4
390 static const uint16_t bluetooth_id_table[][2] = {
391 { 0x2fe3, 0x000c },
392 { 0, 0 },
393 };
394
395 CLASS_INFO_DEFINE const struct usbh_class_info bluetooth_h4_nrf_class_info = {
396 .match_flags = USB_CLASS_MATCH_VID_PID | USB_CLASS_MATCH_INTF_CLASS,
397 .bInterfaceClass = 0xff,
398 .bInterfaceSubClass = 0x00,
399 .bInterfaceProtocol = 0x00,
400 .id_table = bluetooth_id_table,
401 .class_driver = &bluetooth_class_driver
402 };
403 #else
404 CLASS_INFO_DEFINE const struct usbh_class_info bluetooth_class_info = {
405 .match_flags = USB_CLASS_MATCH_INTF_CLASS | USB_CLASS_MATCH_INTF_SUBCLASS | USB_CLASS_MATCH_INTF_PROTOCOL,
406 .bInterfaceClass = USB_DEVICE_CLASS_WIRELESS,
407 .bInterfaceSubClass = 0x01,
408 .bInterfaceProtocol = 0x01,
409 .id_table = NULL,
410 .class_driver = &bluetooth_class_driver
411 };
412 #endif
413