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Commit | Line | Data |
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232c150a WD |
1 | /* |
2 | * (C) Copyright 2003 | |
3 | * Gerry Hamel, geh@ti.com, Texas Instruments | |
386eda02 | 4 | * |
16c8d5e7 WD |
5 | * (C) Copyright 2006 |
6 | * Bryan O'Donoghue, bodonoghue@codehermit.ie | |
232c150a | 7 | * |
1a459660 | 8 | * SPDX-License-Identifier: GPL-2.0+ |
232c150a WD |
9 | */ |
10 | ||
11 | #include <common.h> | |
dedacc18 | 12 | #include <config.h> |
232c150a | 13 | #include <circbuf.h> |
52cb4d4f | 14 | #include <stdio_dev.h> |
b2fb47f1 | 15 | #include <asm/unaligned.h> |
232c150a | 16 | #include "usbtty.h" |
16c8d5e7 WD |
17 | #include "usb_cdc_acm.h" |
18 | #include "usbdescriptors.h" | |
232c150a | 19 | |
dedacc18 | 20 | #ifdef DEBUG |
16c8d5e7 WD |
21 | #define TTYDBG(fmt,args...)\ |
22 | serial_printf("[%s] %s %d: "fmt, __FILE__,__FUNCTION__,__LINE__,##args) | |
232c150a WD |
23 | #else |
24 | #define TTYDBG(fmt,args...) do{}while(0) | |
25 | #endif | |
26 | ||
16c8d5e7 WD |
27 | #if 1 |
28 | #define TTYERR(fmt,args...)\ | |
29 | serial_printf("ERROR![%s] %s %d: "fmt, __FILE__,__FUNCTION__,\ | |
30 | __LINE__,##args) | |
232c150a WD |
31 | #else |
32 | #define TTYERR(fmt,args...) do{}while(0) | |
33 | #endif | |
34 | ||
16c8d5e7 WD |
35 | /* |
36 | * Defines | |
37 | */ | |
38 | #define NUM_CONFIGS 1 | |
39 | #define MAX_INTERFACES 2 | |
40 | #define NUM_ENDPOINTS 3 | |
41 | #define ACM_TX_ENDPOINT 3 | |
42 | #define ACM_RX_ENDPOINT 2 | |
43 | #define GSERIAL_TX_ENDPOINT 2 | |
44 | #define GSERIAL_RX_ENDPOINT 1 | |
45 | #define NUM_ACM_INTERFACES 2 | |
46 | #define NUM_GSERIAL_INTERFACES 1 | |
47 | #define CONFIG_USBD_DATA_INTERFACE_STR "Bulk Data Interface" | |
48 | #define CONFIG_USBD_CTRL_INTERFACE_STR "Control Interface" | |
49 | ||
232c150a WD |
50 | /* |
51 | * Buffers to hold input and output data | |
52 | */ | |
b2caefbb | 53 | #define USBTTY_BUFFER_SIZE 2048 |
232c150a WD |
54 | static circbuf_t usbtty_input; |
55 | static circbuf_t usbtty_output; | |
56 | ||
57 | ||
58 | /* | |
59 | * Instance variables | |
60 | */ | |
52cb4d4f | 61 | static struct stdio_dev usbttydev; |
16c8d5e7 WD |
62 | static struct usb_device_instance device_instance[1]; |
63 | static struct usb_bus_instance bus_instance[1]; | |
232c150a | 64 | static struct usb_configuration_instance config_instance[NUM_CONFIGS]; |
16c8d5e7 WD |
65 | static struct usb_interface_instance interface_instance[MAX_INTERFACES]; |
66 | static struct usb_alternate_instance alternate_instance[MAX_INTERFACES]; | |
67 | /* one extra for control endpoint */ | |
68 | static struct usb_endpoint_instance endpoint_instance[NUM_ENDPOINTS+1]; | |
232c150a WD |
69 | |
70 | /* | |
71 | * Global flag | |
72 | */ | |
73 | int usbtty_configured_flag = 0; | |
74 | ||
6629d2f2 WD |
75 | /* |
76 | * Serial number | |
77 | */ | |
78 | static char serial_number[16]; | |
79 | ||
16c8d5e7 | 80 | |
232c150a | 81 | /* |
16c8d5e7 | 82 | * Descriptors, Strings, Local variables. |
232c150a | 83 | */ |
16c8d5e7 | 84 | |
2731b9a8 | 85 | /* defined and used by gadget/ep0.c */ |
16c8d5e7 WD |
86 | extern struct usb_string_descriptor **usb_strings; |
87 | ||
88 | /* Indicies, References */ | |
89 | static unsigned short rx_endpoint = 0; | |
90 | static unsigned short tx_endpoint = 0; | |
91 | static unsigned short interface_count = 0; | |
92 | static struct usb_string_descriptor *usbtty_string_table[STR_COUNT]; | |
93 | ||
94 | /* USB Descriptor Strings */ | |
232c150a WD |
95 | static u8 wstrLang[4] = {4,USB_DT_STRING,0x9,0x4}; |
96 | static u8 wstrManufacturer[2 + 2*(sizeof(CONFIG_USBD_MANUFACTURER)-1)]; | |
97 | static u8 wstrProduct[2 + 2*(sizeof(CONFIG_USBD_PRODUCT_NAME)-1)]; | |
6629d2f2 | 98 | static u8 wstrSerial[2 + 2*(sizeof(serial_number) - 1)]; |
232c150a | 99 | static u8 wstrConfiguration[2 + 2*(sizeof(CONFIG_USBD_CONFIGURATION_STR)-1)]; |
16c8d5e7 WD |
100 | static u8 wstrDataInterface[2 + 2*(sizeof(CONFIG_USBD_DATA_INTERFACE_STR)-1)]; |
101 | static u8 wstrCtrlInterface[2 + 2*(sizeof(CONFIG_USBD_DATA_INTERFACE_STR)-1)]; | |
232c150a | 102 | |
16c8d5e7 WD |
103 | /* Standard USB Data Structures */ |
104 | static struct usb_interface_descriptor interface_descriptors[MAX_INTERFACES]; | |
105 | static struct usb_endpoint_descriptor *ep_descriptor_ptrs[NUM_ENDPOINTS]; | |
106 | static struct usb_configuration_descriptor *configuration_descriptor = 0; | |
232c150a | 107 | static struct usb_device_descriptor device_descriptor = { |
16c8d5e7 WD |
108 | .bLength = sizeof(struct usb_device_descriptor), |
109 | .bDescriptorType = USB_DT_DEVICE, | |
53677ef1 | 110 | .bcdUSB = cpu_to_le16(USB_BCD_VERSION), |
16c8d5e7 WD |
111 | .bDeviceSubClass = 0x00, |
112 | .bDeviceProtocol = 0x00, | |
113 | .bMaxPacketSize0 = EP0_MAX_PACKET_SIZE, | |
114 | .idVendor = cpu_to_le16(CONFIG_USBD_VENDORID), | |
115 | .bcdDevice = cpu_to_le16(USBTTY_BCD_DEVICE), | |
116 | .iManufacturer = STR_MANUFACTURER, | |
117 | .iProduct = STR_PRODUCT, | |
118 | .iSerialNumber = STR_SERIAL, | |
119 | .bNumConfigurations = NUM_CONFIGS | |
232c150a | 120 | }; |
16c8d5e7 WD |
121 | |
122 | ||
f9da0f89 VK |
123 | #if defined(CONFIG_USBD_HS) |
124 | static struct usb_qualifier_descriptor qualifier_descriptor = { | |
125 | .bLength = sizeof(struct usb_qualifier_descriptor), | |
126 | .bDescriptorType = USB_DT_QUAL, | |
127 | .bcdUSB = cpu_to_le16(USB_BCD_VERSION), | |
128 | .bDeviceClass = COMMUNICATIONS_DEVICE_CLASS, | |
129 | .bDeviceSubClass = 0x00, | |
130 | .bDeviceProtocol = 0x00, | |
131 | .bMaxPacketSize0 = EP0_MAX_PACKET_SIZE, | |
132 | .bNumConfigurations = NUM_CONFIGS | |
133 | }; | |
134 | #endif | |
135 | ||
16c8d5e7 WD |
136 | /* |
137 | * Static CDC ACM specific descriptors | |
138 | */ | |
139 | ||
140 | struct acm_config_desc { | |
141 | struct usb_configuration_descriptor configuration_desc; | |
386eda02 | 142 | |
16c8d5e7 WD |
143 | /* Master Interface */ |
144 | struct usb_interface_descriptor interface_desc; | |
386eda02 | 145 | |
16c8d5e7 WD |
146 | struct usb_class_header_function_descriptor usb_class_header; |
147 | struct usb_class_call_management_descriptor usb_class_call_mgt; | |
148 | struct usb_class_abstract_control_descriptor usb_class_acm; | |
149 | struct usb_class_union_function_descriptor usb_class_union; | |
150 | struct usb_endpoint_descriptor notification_endpoint; | |
151 | ||
152 | /* Slave Interface */ | |
153 | struct usb_interface_descriptor data_class_interface; | |
f3c0de63 | 154 | struct usb_endpoint_descriptor data_endpoints[NUM_ENDPOINTS-1]; |
16c8d5e7 WD |
155 | } __attribute__((packed)); |
156 | ||
157 | static struct acm_config_desc acm_configuration_descriptors[NUM_CONFIGS] = { | |
158 | { | |
159 | .configuration_desc ={ | |
386eda02 | 160 | .bLength = |
16c8d5e7 | 161 | sizeof(struct usb_configuration_descriptor), |
53677ef1 | 162 | .bDescriptorType = USB_DT_CONFIG, |
386eda02 | 163 | .wTotalLength = |
16c8d5e7 | 164 | cpu_to_le16(sizeof(struct acm_config_desc)), |
53677ef1 WD |
165 | .bNumInterfaces = NUM_ACM_INTERFACES, |
166 | .bConfigurationValue = 1, | |
16c8d5e7 | 167 | .iConfiguration = STR_CONFIG, |
386eda02 | 168 | .bmAttributes = |
16c8d5e7 WD |
169 | BMATTRIBUTE_SELF_POWERED|BMATTRIBUTE_RESERVED, |
170 | .bMaxPower = USBTTY_MAXPOWER | |
171 | }, | |
172 | /* Interface 1 */ | |
173 | .interface_desc = { | |
174 | .bLength = sizeof(struct usb_interface_descriptor), | |
175 | .bDescriptorType = USB_DT_INTERFACE, | |
176 | .bInterfaceNumber = 0, | |
177 | .bAlternateSetting = 0, | |
178 | .bNumEndpoints = 0x01, | |
386eda02 | 179 | .bInterfaceClass = |
16c8d5e7 WD |
180 | COMMUNICATIONS_INTERFACE_CLASS_CONTROL, |
181 | .bInterfaceSubClass = COMMUNICATIONS_ACM_SUBCLASS, | |
182 | .bInterfaceProtocol = COMMUNICATIONS_V25TER_PROTOCOL, | |
183 | .iInterface = STR_CTRL_INTERFACE, | |
184 | }, | |
185 | .usb_class_header = { | |
386eda02 | 186 | .bFunctionLength = |
16c8d5e7 | 187 | sizeof(struct usb_class_header_function_descriptor), |
386eda02 | 188 | .bDescriptorType = CS_INTERFACE, |
16c8d5e7 WD |
189 | .bDescriptorSubtype = USB_ST_HEADER, |
190 | .bcdCDC = cpu_to_le16(110), | |
191 | }, | |
192 | .usb_class_call_mgt = { | |
386eda02 | 193 | .bFunctionLength = |
16c8d5e7 WD |
194 | sizeof(struct usb_class_call_management_descriptor), |
195 | .bDescriptorType = CS_INTERFACE, | |
196 | .bDescriptorSubtype = USB_ST_CMF, | |
386eda02 WD |
197 | .bmCapabilities = 0x00, |
198 | .bDataInterface = 0x01, | |
16c8d5e7 WD |
199 | }, |
200 | .usb_class_acm = { | |
386eda02 | 201 | .bFunctionLength = |
16c8d5e7 WD |
202 | sizeof(struct usb_class_abstract_control_descriptor), |
203 | .bDescriptorType = CS_INTERFACE, | |
386eda02 WD |
204 | .bDescriptorSubtype = USB_ST_ACMF, |
205 | .bmCapabilities = 0x00, | |
16c8d5e7 WD |
206 | }, |
207 | .usb_class_union = { | |
386eda02 | 208 | .bFunctionLength = |
16c8d5e7 WD |
209 | sizeof(struct usb_class_union_function_descriptor), |
210 | .bDescriptorType = CS_INTERFACE, | |
211 | .bDescriptorSubtype = USB_ST_UF, | |
386eda02 WD |
212 | .bMasterInterface = 0x00, |
213 | .bSlaveInterface0 = 0x01, | |
16c8d5e7 WD |
214 | }, |
215 | .notification_endpoint = { | |
386eda02 | 216 | .bLength = |
16c8d5e7 WD |
217 | sizeof(struct usb_endpoint_descriptor), |
218 | .bDescriptorType = USB_DT_ENDPOINT, | |
9e78dae2 | 219 | .bEndpointAddress = UDC_INT_ENDPOINT | USB_DIR_IN, |
16c8d5e7 | 220 | .bmAttributes = USB_ENDPOINT_XFER_INT, |
386eda02 | 221 | .wMaxPacketSize |
16c8d5e7 WD |
222 | = cpu_to_le16(CONFIG_USBD_SERIAL_INT_PKTSIZE), |
223 | .bInterval = 0xFF, | |
224 | }, | |
225 | ||
226 | /* Interface 2 */ | |
227 | .data_class_interface = { | |
386eda02 | 228 | .bLength = |
16c8d5e7 WD |
229 | sizeof(struct usb_interface_descriptor), |
230 | .bDescriptorType = USB_DT_INTERFACE, | |
231 | .bInterfaceNumber = 0x01, | |
232 | .bAlternateSetting = 0x00, | |
233 | .bNumEndpoints = 0x02, | |
386eda02 | 234 | .bInterfaceClass = |
16c8d5e7 WD |
235 | COMMUNICATIONS_INTERFACE_CLASS_DATA, |
236 | .bInterfaceSubClass = DATA_INTERFACE_SUBCLASS_NONE, | |
237 | .bInterfaceProtocol = DATA_INTERFACE_PROTOCOL_NONE, | |
238 | .iInterface = STR_DATA_INTERFACE, | |
239 | }, | |
240 | .data_endpoints = { | |
241 | { | |
386eda02 | 242 | .bLength = |
16c8d5e7 WD |
243 | sizeof(struct usb_endpoint_descriptor), |
244 | .bDescriptorType = USB_DT_ENDPOINT, | |
9e78dae2 | 245 | .bEndpointAddress = UDC_OUT_ENDPOINT | USB_DIR_OUT, |
386eda02 | 246 | .bmAttributes = |
16c8d5e7 | 247 | USB_ENDPOINT_XFER_BULK, |
386eda02 | 248 | .wMaxPacketSize = |
16c8d5e7 WD |
249 | cpu_to_le16(CONFIG_USBD_SERIAL_BULK_PKTSIZE), |
250 | .bInterval = 0xFF, | |
251 | }, | |
252 | { | |
386eda02 | 253 | .bLength = |
16c8d5e7 WD |
254 | sizeof(struct usb_endpoint_descriptor), |
255 | .bDescriptorType = USB_DT_ENDPOINT, | |
9e78dae2 | 256 | .bEndpointAddress = UDC_IN_ENDPOINT | USB_DIR_IN, |
386eda02 | 257 | .bmAttributes = |
16c8d5e7 | 258 | USB_ENDPOINT_XFER_BULK, |
386eda02 | 259 | .wMaxPacketSize = |
16c8d5e7 WD |
260 | cpu_to_le16(CONFIG_USBD_SERIAL_BULK_PKTSIZE), |
261 | .bInterval = 0xFF, | |
262 | }, | |
263 | }, | |
264 | }, | |
386eda02 | 265 | }; |
16c8d5e7 WD |
266 | |
267 | static struct rs232_emu rs232_desc={ | |
53677ef1 WD |
268 | .dter = 115200, |
269 | .stop_bits = 0x00, | |
270 | .parity = 0x00, | |
16c8d5e7 | 271 | .data_bits = 0x08 |
232c150a WD |
272 | }; |
273 | ||
232c150a | 274 | |
16c8d5e7 WD |
275 | /* |
276 | * Static Generic Serial specific data | |
277 | */ | |
278 | ||
279 | ||
280 | struct gserial_config_desc { | |
386eda02 | 281 | |
16c8d5e7 | 282 | struct usb_configuration_descriptor configuration_desc; |
f3c0de63 AM |
283 | struct usb_interface_descriptor interface_desc[NUM_GSERIAL_INTERFACES]; |
284 | struct usb_endpoint_descriptor data_endpoints[NUM_ENDPOINTS]; | |
16c8d5e7 WD |
285 | |
286 | } __attribute__((packed)); | |
287 | ||
386eda02 | 288 | static struct gserial_config_desc |
16c8d5e7 WD |
289 | gserial_configuration_descriptors[NUM_CONFIGS] ={ |
290 | { | |
291 | .configuration_desc ={ | |
292 | .bLength = sizeof(struct usb_configuration_descriptor), | |
293 | .bDescriptorType = USB_DT_CONFIG, | |
386eda02 | 294 | .wTotalLength = |
16c8d5e7 WD |
295 | cpu_to_le16(sizeof(struct gserial_config_desc)), |
296 | .bNumInterfaces = NUM_GSERIAL_INTERFACES, | |
297 | .bConfigurationValue = 1, | |
298 | .iConfiguration = STR_CONFIG, | |
386eda02 | 299 | .bmAttributes = |
16c8d5e7 WD |
300 | BMATTRIBUTE_SELF_POWERED|BMATTRIBUTE_RESERVED, |
301 | .bMaxPower = USBTTY_MAXPOWER | |
302 | }, | |
303 | .interface_desc = { | |
304 | { | |
386eda02 | 305 | .bLength = |
16c8d5e7 WD |
306 | sizeof(struct usb_interface_descriptor), |
307 | .bDescriptorType = USB_DT_INTERFACE, | |
308 | .bInterfaceNumber = 0, | |
309 | .bAlternateSetting = 0, | |
310 | .bNumEndpoints = NUM_ENDPOINTS, | |
386eda02 | 311 | .bInterfaceClass = |
16c8d5e7 | 312 | COMMUNICATIONS_INTERFACE_CLASS_VENDOR, |
386eda02 | 313 | .bInterfaceSubClass = |
16c8d5e7 | 314 | COMMUNICATIONS_NO_SUBCLASS, |
386eda02 | 315 | .bInterfaceProtocol = |
16c8d5e7 WD |
316 | COMMUNICATIONS_NO_PROTOCOL, |
317 | .iInterface = STR_DATA_INTERFACE | |
318 | }, | |
53677ef1 | 319 | }, |
16c8d5e7 WD |
320 | .data_endpoints = { |
321 | { | |
386eda02 | 322 | .bLength = |
16c8d5e7 WD |
323 | sizeof(struct usb_endpoint_descriptor), |
324 | .bDescriptorType = USB_DT_ENDPOINT, | |
9e78dae2 | 325 | .bEndpointAddress = UDC_OUT_ENDPOINT | USB_DIR_OUT, |
16c8d5e7 | 326 | .bmAttributes = USB_ENDPOINT_XFER_BULK, |
386eda02 | 327 | .wMaxPacketSize = |
16c8d5e7 WD |
328 | cpu_to_le16(CONFIG_USBD_SERIAL_OUT_PKTSIZE), |
329 | .bInterval= 0xFF, | |
330 | }, | |
331 | { | |
386eda02 | 332 | .bLength = |
16c8d5e7 WD |
333 | sizeof(struct usb_endpoint_descriptor), |
334 | .bDescriptorType = USB_DT_ENDPOINT, | |
9e78dae2 | 335 | .bEndpointAddress = UDC_IN_ENDPOINT | USB_DIR_IN, |
16c8d5e7 | 336 | .bmAttributes = USB_ENDPOINT_XFER_BULK, |
386eda02 | 337 | .wMaxPacketSize = |
16c8d5e7 | 338 | cpu_to_le16(CONFIG_USBD_SERIAL_IN_PKTSIZE), |
53677ef1 | 339 | .bInterval = 0xFF, |
16c8d5e7 WD |
340 | }, |
341 | { | |
386eda02 | 342 | .bLength = |
16c8d5e7 WD |
343 | sizeof(struct usb_endpoint_descriptor), |
344 | .bDescriptorType = USB_DT_ENDPOINT, | |
9e78dae2 | 345 | .bEndpointAddress = UDC_INT_ENDPOINT | USB_DIR_IN, |
16c8d5e7 | 346 | .bmAttributes = USB_ENDPOINT_XFER_INT, |
53677ef1 | 347 | .wMaxPacketSize = |
16c8d5e7 WD |
348 | cpu_to_le16(CONFIG_USBD_SERIAL_INT_PKTSIZE), |
349 | .bInterval = 0xFF, | |
350 | }, | |
351 | }, | |
352 | }, | |
353 | }; | |
232c150a WD |
354 | |
355 | /* | |
16c8d5e7 | 356 | * Static Function Prototypes |
232c150a | 357 | */ |
16c8d5e7 | 358 | |
232c150a WD |
359 | static void usbtty_init_strings (void); |
360 | static void usbtty_init_instances (void); | |
361 | static void usbtty_init_endpoints (void); | |
16c8d5e7 | 362 | static void usbtty_init_terminal_type(short type); |
232c150a | 363 | static void usbtty_event_handler (struct usb_device_instance *device, |
16c8d5e7 | 364 | usb_device_event_t event, int data); |
386eda02 | 365 | static int usbtty_cdc_setup(struct usb_device_request *request, |
16c8d5e7 | 366 | struct urb *urb); |
232c150a | 367 | static int usbtty_configured (void); |
232c150a WD |
368 | static int write_buffer (circbuf_t * buf); |
369 | static int fill_buffer (circbuf_t * buf); | |
370 | ||
371 | void usbtty_poll (void); | |
232c150a | 372 | |
16c8d5e7 WD |
373 | /* utility function for converting char* to wide string used by USB */ |
374 | static void str2wide (char *str, u16 * wide) | |
375 | { | |
376 | int i; | |
377 | for (i = 0; i < strlen (str) && str[i]; i++){ | |
18135125 | 378 | #if defined(__LITTLE_ENDIAN) |
16c8d5e7 | 379 | wide[i] = (u16) str[i]; |
18135125 | 380 | #elif defined(__BIG_ENDIAN) |
16c8d5e7 WD |
381 | wide[i] = ((u16)(str[i])<<8); |
382 | #else | |
18135125 | 383 | #error "__LITTLE_ENDIAN or __BIG_ENDIAN undefined" |
16c8d5e7 WD |
384 | #endif |
385 | } | |
386 | } | |
232c150a WD |
387 | |
388 | /* | |
389 | * Test whether a character is in the RX buffer | |
390 | */ | |
16c8d5e7 | 391 | |
709ea543 | 392 | int usbtty_tstc(struct stdio_dev *dev) |
232c150a | 393 | { |
16c8d5e7 WD |
394 | struct usb_endpoint_instance *endpoint = |
395 | &endpoint_instance[rx_endpoint]; | |
396 | ||
397 | /* If no input data exists, allow more RX to be accepted */ | |
398 | if(usbtty_input.size <= 0){ | |
399 | udc_unset_nak(endpoint->endpoint_address&0x03); | |
400 | } | |
401 | ||
232c150a WD |
402 | usbtty_poll (); |
403 | return (usbtty_input.size > 0); | |
404 | } | |
405 | ||
406 | /* | |
407 | * Read a single byte from the usb client port. Returns 1 on success, 0 | |
408 | * otherwise. When the function is succesfull, the character read is | |
409 | * written into its argument c. | |
410 | */ | |
16c8d5e7 | 411 | |
709ea543 | 412 | int usbtty_getc(struct stdio_dev *dev) |
232c150a WD |
413 | { |
414 | char c; | |
16c8d5e7 WD |
415 | struct usb_endpoint_instance *endpoint = |
416 | &endpoint_instance[rx_endpoint]; | |
232c150a WD |
417 | |
418 | while (usbtty_input.size <= 0) { | |
16c8d5e7 | 419 | udc_unset_nak(endpoint->endpoint_address&0x03); |
232c150a WD |
420 | usbtty_poll (); |
421 | } | |
422 | ||
423 | buf_pop (&usbtty_input, &c, 1); | |
16c8d5e7 WD |
424 | udc_set_nak(endpoint->endpoint_address&0x03); |
425 | ||
232c150a WD |
426 | return c; |
427 | } | |
428 | ||
429 | /* | |
430 | * Output a single byte to the usb client port. | |
431 | */ | |
709ea543 | 432 | void usbtty_putc(struct stdio_dev *dev, const char c) |
232c150a | 433 | { |
f3c0de63 AM |
434 | if (!usbtty_configured ()) |
435 | return; | |
436 | ||
232c150a WD |
437 | /* If \n, also do \r */ |
438 | if (c == '\n') | |
439 | buf_push (&usbtty_output, "\r", 1); | |
440 | ||
055457ef AW |
441 | buf_push(&usbtty_output, &c, 1); |
442 | ||
232c150a WD |
443 | /* Poll at end to handle new data... */ |
444 | if ((usbtty_output.size + 2) >= usbtty_output.totalsize) { | |
445 | usbtty_poll (); | |
446 | } | |
447 | } | |
448 | ||
232c150a WD |
449 | /* usbtty_puts() helper function for finding the next '\n' in a string */ |
450 | static int next_nl_pos (const char *s) | |
451 | { | |
452 | int i; | |
453 | ||
454 | for (i = 0; s[i] != '\0'; i++) { | |
455 | if (s[i] == '\n') | |
456 | return i; | |
457 | } | |
458 | return i; | |
459 | } | |
460 | ||
461 | /* | |
16c8d5e7 | 462 | * Output a string to the usb client port - implementing flow control |
232c150a | 463 | */ |
16c8d5e7 | 464 | |
232c150a WD |
465 | static void __usbtty_puts (const char *str, int len) |
466 | { | |
467 | int maxlen = usbtty_output.totalsize; | |
468 | int space, n; | |
469 | ||
470 | /* break str into chunks < buffer size, if needed */ | |
471 | while (len > 0) { | |
16c8d5e7 | 472 | usbtty_poll (); |
232c150a | 473 | |
16c8d5e7 | 474 | space = maxlen - usbtty_output.size; |
232c150a | 475 | /* Empty buffer here, if needed, to ensure space... */ |
16c8d5e7 | 476 | if (space) { |
232c150a | 477 | write_buffer (&usbtty_output); |
386eda02 | 478 | |
c79cba37 | 479 | n = min(space, min(len, maxlen)); |
16c8d5e7 | 480 | buf_push (&usbtty_output, str, n); |
232c150a | 481 | |
16c8d5e7 | 482 | str += n; |
386eda02 | 483 | len -= n; |
16c8d5e7 | 484 | } |
232c150a WD |
485 | } |
486 | } | |
487 | ||
709ea543 | 488 | void usbtty_puts(struct stdio_dev *dev, const char *str) |
232c150a WD |
489 | { |
490 | int n; | |
f3c0de63 AM |
491 | int len; |
492 | ||
493 | if (!usbtty_configured ()) | |
494 | return; | |
232c150a | 495 | |
f3c0de63 | 496 | len = strlen (str); |
232c150a WD |
497 | /* add '\r' for each '\n' */ |
498 | while (len > 0) { | |
499 | n = next_nl_pos (str); | |
500 | ||
501 | if (str[n] == '\n') { | |
055457ef AW |
502 | __usbtty_puts("\r", 1); |
503 | __usbtty_puts(str, n + 1); | |
232c150a WD |
504 | str += (n + 1); |
505 | len -= (n + 1); | |
506 | } else { | |
507 | /* No \n found. All done. */ | |
508 | __usbtty_puts (str, n); | |
509 | break; | |
510 | } | |
511 | } | |
512 | ||
513 | /* Poll at end to handle new data... */ | |
514 | usbtty_poll (); | |
515 | } | |
516 | ||
517 | /* | |
518 | * Initialize the usb client port. | |
519 | * | |
520 | */ | |
521 | int drv_usbtty_init (void) | |
522 | { | |
523 | int rc; | |
6629d2f2 | 524 | char * sn; |
16c8d5e7 | 525 | char * tt; |
6629d2f2 | 526 | int snlen; |
42dfe7a1 | 527 | |
16c8d5e7 | 528 | /* Ger seiral number */ |
6629d2f2 WD |
529 | if (!(sn = getenv("serial#"))) { |
530 | sn = "000000000000"; | |
531 | } | |
532 | snlen = strlen(sn); | |
533 | if (snlen > sizeof(serial_number) - 1) { | |
b64f190b WD |
534 | printf ("Warning: serial number %s is too long (%d > %lu)\n", |
535 | sn, snlen, (ulong)(sizeof(serial_number) - 1)); | |
6629d2f2 WD |
536 | snlen = sizeof(serial_number) - 1; |
537 | } | |
538 | memcpy (serial_number, sn, snlen); | |
539 | serial_number[snlen] = '\0'; | |
232c150a | 540 | |
16c8d5e7 WD |
541 | /* Decide on which type of UDC device to be. |
542 | */ | |
543 | ||
544 | if(!(tt = getenv("usbtty"))) { | |
545 | tt = "generic"; | |
546 | } | |
547 | usbtty_init_terminal_type(strcmp(tt,"cdc_acm")); | |
386eda02 | 548 | |
232c150a WD |
549 | /* prepare buffers... */ |
550 | buf_init (&usbtty_input, USBTTY_BUFFER_SIZE); | |
551 | buf_init (&usbtty_output, USBTTY_BUFFER_SIZE); | |
552 | ||
553 | /* Now, set up USB controller and infrastructure */ | |
554 | udc_init (); /* Basic USB initialization */ | |
555 | ||
556 | usbtty_init_strings (); | |
557 | usbtty_init_instances (); | |
558 | ||
241d9a61 SH |
559 | usbtty_init_endpoints (); |
560 | ||
16c8d5e7 | 561 | udc_startup_events (device_instance);/* Enable dev, init udc pointers */ |
232c150a WD |
562 | udc_connect (); /* Enable pullup for host detection */ |
563 | ||
232c150a WD |
564 | /* Device initialization */ |
565 | memset (&usbttydev, 0, sizeof (usbttydev)); | |
566 | ||
567 | strcpy (usbttydev.name, "usbtty"); | |
568 | usbttydev.ext = 0; /* No extensions */ | |
569 | usbttydev.flags = DEV_FLAGS_INPUT | DEV_FLAGS_OUTPUT; | |
570 | usbttydev.tstc = usbtty_tstc; /* 'tstc' function */ | |
571 | usbttydev.getc = usbtty_getc; /* 'getc' function */ | |
572 | usbttydev.putc = usbtty_putc; /* 'putc' function */ | |
573 | usbttydev.puts = usbtty_puts; /* 'puts' function */ | |
574 | ||
52cb4d4f | 575 | rc = stdio_register (&usbttydev); |
232c150a WD |
576 | |
577 | return (rc == 0) ? 1 : rc; | |
578 | } | |
579 | ||
580 | static void usbtty_init_strings (void) | |
581 | { | |
582 | struct usb_string_descriptor *string; | |
583 | ||
386eda02 | 584 | usbtty_string_table[STR_LANG] = |
16c8d5e7 WD |
585 | (struct usb_string_descriptor*)wstrLang; |
586 | ||
232c150a | 587 | string = (struct usb_string_descriptor *) wstrManufacturer; |
16c8d5e7 | 588 | string->bLength = sizeof(wstrManufacturer); |
232c150a WD |
589 | string->bDescriptorType = USB_DT_STRING; |
590 | str2wide (CONFIG_USBD_MANUFACTURER, string->wData); | |
16c8d5e7 WD |
591 | usbtty_string_table[STR_MANUFACTURER]=string; |
592 | ||
232c150a WD |
593 | |
594 | string = (struct usb_string_descriptor *) wstrProduct; | |
16c8d5e7 | 595 | string->bLength = sizeof(wstrProduct); |
232c150a WD |
596 | string->bDescriptorType = USB_DT_STRING; |
597 | str2wide (CONFIG_USBD_PRODUCT_NAME, string->wData); | |
16c8d5e7 WD |
598 | usbtty_string_table[STR_PRODUCT]=string; |
599 | ||
232c150a WD |
600 | |
601 | string = (struct usb_string_descriptor *) wstrSerial; | |
16c8d5e7 | 602 | string->bLength = sizeof(serial_number); |
232c150a | 603 | string->bDescriptorType = USB_DT_STRING; |
6629d2f2 | 604 | str2wide (serial_number, string->wData); |
16c8d5e7 WD |
605 | usbtty_string_table[STR_SERIAL]=string; |
606 | ||
232c150a WD |
607 | |
608 | string = (struct usb_string_descriptor *) wstrConfiguration; | |
16c8d5e7 | 609 | string->bLength = sizeof(wstrConfiguration); |
232c150a WD |
610 | string->bDescriptorType = USB_DT_STRING; |
611 | str2wide (CONFIG_USBD_CONFIGURATION_STR, string->wData); | |
16c8d5e7 WD |
612 | usbtty_string_table[STR_CONFIG]=string; |
613 | ||
614 | ||
615 | string = (struct usb_string_descriptor *) wstrDataInterface; | |
616 | string->bLength = sizeof(wstrDataInterface); | |
617 | string->bDescriptorType = USB_DT_STRING; | |
618 | str2wide (CONFIG_USBD_DATA_INTERFACE_STR, string->wData); | |
619 | usbtty_string_table[STR_DATA_INTERFACE]=string; | |
232c150a | 620 | |
16c8d5e7 WD |
621 | string = (struct usb_string_descriptor *) wstrCtrlInterface; |
622 | string->bLength = sizeof(wstrCtrlInterface); | |
232c150a | 623 | string->bDescriptorType = USB_DT_STRING; |
16c8d5e7 WD |
624 | str2wide (CONFIG_USBD_CTRL_INTERFACE_STR, string->wData); |
625 | usbtty_string_table[STR_CTRL_INTERFACE]=string; | |
232c150a WD |
626 | |
627 | /* Now, initialize the string table for ep0 handling */ | |
628 | usb_strings = usbtty_string_table; | |
386eda02 | 629 | } |
232c150a | 630 | |
b2fb47f1 TR |
631 | #define init_wMaxPacketSize(x) le16_to_cpu(get_unaligned(\ |
632 | &ep_descriptor_ptrs[(x) - 1]->wMaxPacketSize)); | |
633 | ||
232c150a WD |
634 | static void usbtty_init_instances (void) |
635 | { | |
636 | int i; | |
637 | ||
638 | /* initialize device instance */ | |
639 | memset (device_instance, 0, sizeof (struct usb_device_instance)); | |
640 | device_instance->device_state = STATE_INIT; | |
641 | device_instance->device_descriptor = &device_descriptor; | |
f9da0f89 VK |
642 | #if defined(CONFIG_USBD_HS) |
643 | device_instance->qualifier_descriptor = &qualifier_descriptor; | |
644 | #endif | |
232c150a | 645 | device_instance->event = usbtty_event_handler; |
16c8d5e7 | 646 | device_instance->cdc_recv_setup = usbtty_cdc_setup; |
232c150a WD |
647 | device_instance->bus = bus_instance; |
648 | device_instance->configurations = NUM_CONFIGS; | |
649 | device_instance->configuration_instance_array = config_instance; | |
650 | ||
651 | /* initialize bus instance */ | |
652 | memset (bus_instance, 0, sizeof (struct usb_bus_instance)); | |
653 | bus_instance->device = device_instance; | |
654 | bus_instance->endpoint_array = endpoint_instance; | |
655 | bus_instance->max_endpoints = 1; | |
656 | bus_instance->maxpacketsize = 64; | |
6629d2f2 | 657 | bus_instance->serial_number_str = serial_number; |
232c150a WD |
658 | |
659 | /* configuration instance */ | |
660 | memset (config_instance, 0, | |
661 | sizeof (struct usb_configuration_instance)); | |
16c8d5e7 WD |
662 | config_instance->interfaces = interface_count; |
663 | config_instance->configuration_descriptor = configuration_descriptor; | |
232c150a WD |
664 | config_instance->interface_instance_array = interface_instance; |
665 | ||
666 | /* interface instance */ | |
667 | memset (interface_instance, 0, | |
668 | sizeof (struct usb_interface_instance)); | |
669 | interface_instance->alternates = 1; | |
670 | interface_instance->alternates_instance_array = alternate_instance; | |
671 | ||
672 | /* alternates instance */ | |
673 | memset (alternate_instance, 0, | |
674 | sizeof (struct usb_alternate_instance)); | |
675 | alternate_instance->interface_descriptor = interface_descriptors; | |
676 | alternate_instance->endpoints = NUM_ENDPOINTS; | |
677 | alternate_instance->endpoints_descriptor_array = ep_descriptor_ptrs; | |
678 | ||
679 | /* endpoint instances */ | |
680 | memset (&endpoint_instance[0], 0, | |
681 | sizeof (struct usb_endpoint_instance)); | |
682 | endpoint_instance[0].endpoint_address = 0; | |
683 | endpoint_instance[0].rcv_packetSize = EP0_MAX_PACKET_SIZE; | |
684 | endpoint_instance[0].rcv_attributes = USB_ENDPOINT_XFER_CONTROL; | |
685 | endpoint_instance[0].tx_packetSize = EP0_MAX_PACKET_SIZE; | |
686 | endpoint_instance[0].tx_attributes = USB_ENDPOINT_XFER_CONTROL; | |
687 | udc_setup_ep (device_instance, 0, &endpoint_instance[0]); | |
688 | ||
689 | for (i = 1; i <= NUM_ENDPOINTS; i++) { | |
690 | memset (&endpoint_instance[i], 0, | |
691 | sizeof (struct usb_endpoint_instance)); | |
692 | ||
693 | endpoint_instance[i].endpoint_address = | |
16c8d5e7 | 694 | ep_descriptor_ptrs[i - 1]->bEndpointAddress; |
232c150a | 695 | |
232c150a | 696 | endpoint_instance[i].rcv_attributes = |
16c8d5e7 WD |
697 | ep_descriptor_ptrs[i - 1]->bmAttributes; |
698 | ||
b2fb47f1 | 699 | endpoint_instance[i].rcv_packetSize = init_wMaxPacketSize(i); |
386eda02 | 700 | |
16c8d5e7 WD |
701 | endpoint_instance[i].tx_attributes = |
702 | ep_descriptor_ptrs[i - 1]->bmAttributes; | |
232c150a | 703 | |
b2fb47f1 | 704 | endpoint_instance[i].tx_packetSize = init_wMaxPacketSize(i); |
16c8d5e7 | 705 | |
232c150a | 706 | endpoint_instance[i].tx_attributes = |
16c8d5e7 | 707 | ep_descriptor_ptrs[i - 1]->bmAttributes; |
232c150a WD |
708 | |
709 | urb_link_init (&endpoint_instance[i].rcv); | |
710 | urb_link_init (&endpoint_instance[i].rdy); | |
711 | urb_link_init (&endpoint_instance[i].tx); | |
712 | urb_link_init (&endpoint_instance[i].done); | |
713 | ||
714 | if (endpoint_instance[i].endpoint_address & USB_DIR_IN) | |
715 | endpoint_instance[i].tx_urb = | |
716 | usbd_alloc_urb (device_instance, | |
717 | &endpoint_instance[i]); | |
718 | else | |
719 | endpoint_instance[i].rcv_urb = | |
720 | usbd_alloc_urb (device_instance, | |
721 | &endpoint_instance[i]); | |
722 | } | |
723 | } | |
724 | ||
725 | static void usbtty_init_endpoints (void) | |
726 | { | |
727 | int i; | |
728 | ||
729 | bus_instance->max_endpoints = NUM_ENDPOINTS + 1; | |
386eda02 | 730 | for (i = 1; i <= NUM_ENDPOINTS; i++) { |
232c150a WD |
731 | udc_setup_ep (device_instance, i, &endpoint_instance[i]); |
732 | } | |
733 | } | |
734 | ||
16c8d5e7 | 735 | /* usbtty_init_terminal_type |
386eda02 | 736 | * |
16c8d5e7 WD |
737 | * Do some late binding for our device type. |
738 | */ | |
739 | static void usbtty_init_terminal_type(short type) | |
740 | { | |
741 | switch(type){ | |
386eda02 | 742 | /* CDC ACM */ |
16c8d5e7 WD |
743 | case 0: |
744 | /* Assign endpoint descriptors */ | |
386eda02 | 745 | ep_descriptor_ptrs[0] = |
16c8d5e7 | 746 | &acm_configuration_descriptors[0].notification_endpoint; |
386eda02 | 747 | ep_descriptor_ptrs[1] = |
16c8d5e7 | 748 | &acm_configuration_descriptors[0].data_endpoints[0]; |
386eda02 | 749 | ep_descriptor_ptrs[2] = |
16c8d5e7 WD |
750 | &acm_configuration_descriptors[0].data_endpoints[1]; |
751 | ||
752 | /* Enumerate Device Descriptor */ | |
386eda02 | 753 | device_descriptor.bDeviceClass = |
16c8d5e7 WD |
754 | COMMUNICATIONS_DEVICE_CLASS; |
755 | device_descriptor.idProduct = | |
756 | cpu_to_le16(CONFIG_USBD_PRODUCTID_CDCACM); | |
757 | ||
f9da0f89 VK |
758 | #if defined(CONFIG_USBD_HS) |
759 | qualifier_descriptor.bDeviceClass = | |
760 | COMMUNICATIONS_DEVICE_CLASS; | |
761 | #endif | |
16c8d5e7 WD |
762 | /* Assign endpoint indices */ |
763 | tx_endpoint = ACM_TX_ENDPOINT; | |
764 | rx_endpoint = ACM_RX_ENDPOINT; | |
386eda02 | 765 | |
16c8d5e7 WD |
766 | /* Configuration Descriptor */ |
767 | configuration_descriptor = | |
768 | (struct usb_configuration_descriptor*) | |
769 | &acm_configuration_descriptors; | |
770 | ||
771 | /* Interface count */ | |
772 | interface_count = NUM_ACM_INTERFACES; | |
773 | break; | |
232c150a | 774 | |
16c8d5e7 WD |
775 | /* BULK IN/OUT & Default */ |
776 | case 1: | |
777 | default: | |
778 | /* Assign endpoint descriptors */ | |
386eda02 | 779 | ep_descriptor_ptrs[0] = |
16c8d5e7 | 780 | &gserial_configuration_descriptors[0].data_endpoints[0]; |
386eda02 | 781 | ep_descriptor_ptrs[1] = |
16c8d5e7 | 782 | &gserial_configuration_descriptors[0].data_endpoints[1]; |
386eda02 | 783 | ep_descriptor_ptrs[2] = |
16c8d5e7 WD |
784 | &gserial_configuration_descriptors[0].data_endpoints[2]; |
785 | ||
786 | /* Enumerate Device Descriptor */ | |
787 | device_descriptor.bDeviceClass = 0xFF; | |
788 | device_descriptor.idProduct = | |
789 | cpu_to_le16(CONFIG_USBD_PRODUCTID_GSERIAL); | |
f9da0f89 VK |
790 | #if defined(CONFIG_USBD_HS) |
791 | qualifier_descriptor.bDeviceClass = 0xFF; | |
792 | #endif | |
16c8d5e7 WD |
793 | /* Assign endpoint indices */ |
794 | tx_endpoint = GSERIAL_TX_ENDPOINT; | |
795 | rx_endpoint = GSERIAL_RX_ENDPOINT; | |
796 | ||
797 | /* Configuration Descriptor */ | |
386eda02 | 798 | configuration_descriptor = |
16c8d5e7 WD |
799 | (struct usb_configuration_descriptor*) |
800 | &gserial_configuration_descriptors; | |
801 | ||
802 | /* Interface count */ | |
803 | interface_count = NUM_GSERIAL_INTERFACES; | |
804 | break; | |
805 | } | |
806 | } | |
807 | ||
808 | /******************************************************************************/ | |
232c150a WD |
809 | |
810 | static struct urb *next_urb (struct usb_device_instance *device, | |
811 | struct usb_endpoint_instance *endpoint) | |
812 | { | |
813 | struct urb *current_urb = NULL; | |
814 | int space; | |
815 | ||
816 | /* If there's a queue, then we should add to the last urb */ | |
817 | if (!endpoint->tx_queue) { | |
818 | current_urb = endpoint->tx_urb; | |
819 | } else { | |
820 | /* Last urb from tx chain */ | |
821 | current_urb = | |
822 | p2surround (struct urb, link, endpoint->tx.prev); | |
823 | } | |
824 | ||
825 | /* Make sure this one has enough room */ | |
826 | space = current_urb->buffer_length - current_urb->actual_length; | |
827 | if (space > 0) { | |
828 | return current_urb; | |
829 | } else { /* No space here */ | |
830 | /* First look at done list */ | |
831 | current_urb = first_urb_detached (&endpoint->done); | |
832 | if (!current_urb) { | |
833 | current_urb = usbd_alloc_urb (device, endpoint); | |
834 | } | |
835 | ||
836 | urb_append (&endpoint->tx, current_urb); | |
837 | endpoint->tx_queue++; | |
838 | } | |
839 | return current_urb; | |
840 | } | |
841 | ||
842 | static int write_buffer (circbuf_t * buf) | |
843 | { | |
844 | if (!usbtty_configured ()) { | |
845 | return 0; | |
846 | } | |
386eda02 | 847 | |
16c8d5e7 WD |
848 | struct usb_endpoint_instance *endpoint = |
849 | &endpoint_instance[tx_endpoint]; | |
850 | struct urb *current_urb = NULL; | |
232c150a | 851 | |
16c8d5e7 | 852 | current_urb = next_urb (device_instance, endpoint); |
73be5b3f | 853 | |
854 | if (!current_urb) { | |
855 | TTYERR ("current_urb is NULL, buf->size %d\n", | |
856 | buf->size); | |
857 | return 0; | |
858 | } | |
859 | ||
386eda02 WD |
860 | /* TX data still exists - send it now |
861 | */ | |
16c8d5e7 WD |
862 | if(endpoint->sent < current_urb->actual_length){ |
863 | if(udc_endpoint_write (endpoint)){ | |
864 | /* Write pre-empted by RX */ | |
865 | return -1; | |
866 | } | |
867 | } | |
232c150a | 868 | |
16c8d5e7 | 869 | if (buf->size) { |
232c150a WD |
870 | char *dest; |
871 | ||
872 | int space_avail; | |
873 | int popnum, popped; | |
874 | int total = 0; | |
875 | ||
386eda02 WD |
876 | /* Break buffer into urb sized pieces, |
877 | * and link each to the endpoint | |
16c8d5e7 | 878 | */ |
232c150a | 879 | while (buf->size > 0) { |
386eda02 | 880 | |
16c8d5e7 | 881 | dest = (char*)current_urb->buffer + |
232c150a WD |
882 | current_urb->actual_length; |
883 | ||
884 | space_avail = | |
885 | current_urb->buffer_length - | |
886 | current_urb->actual_length; | |
b4141195 | 887 | popnum = min(space_avail, (int)buf->size); |
232c150a WD |
888 | if (popnum == 0) |
889 | break; | |
890 | ||
891 | popped = buf_pop (buf, dest, popnum); | |
892 | if (popped == 0) | |
893 | break; | |
894 | current_urb->actual_length += popped; | |
895 | total += popped; | |
896 | ||
386eda02 WD |
897 | /* If endpoint->last == 0, then transfers have |
898 | * not started on this endpoint | |
16c8d5e7 | 899 | */ |
232c150a | 900 | if (endpoint->last == 0) { |
16c8d5e7 WD |
901 | if(udc_endpoint_write (endpoint)){ |
902 | /* Write pre-empted by RX */ | |
903 | return -1; | |
904 | } | |
232c150a WD |
905 | } |
906 | ||
16c8d5e7 | 907 | }/* end while */ |
232c150a | 908 | return total; |
16c8d5e7 | 909 | } |
232c150a WD |
910 | |
911 | return 0; | |
912 | } | |
913 | ||
914 | static int fill_buffer (circbuf_t * buf) | |
915 | { | |
916 | struct usb_endpoint_instance *endpoint = | |
16c8d5e7 | 917 | &endpoint_instance[rx_endpoint]; |
232c150a WD |
918 | |
919 | if (endpoint->rcv_urb && endpoint->rcv_urb->actual_length) { | |
386eda02 | 920 | unsigned int nb = 0; |
232c150a | 921 | char *src = (char *) endpoint->rcv_urb->buffer; |
16c8d5e7 | 922 | unsigned int rx_avail = buf->totalsize - buf->size; |
232c150a | 923 | |
16c8d5e7 | 924 | if(rx_avail >= endpoint->rcv_urb->actual_length){ |
232c150a | 925 | |
16c8d5e7 WD |
926 | nb = endpoint->rcv_urb->actual_length; |
927 | buf_push (buf, src, nb); | |
928 | endpoint->rcv_urb->actual_length = 0; | |
386eda02 | 929 | |
16c8d5e7 | 930 | } |
232c150a WD |
931 | return nb; |
932 | } | |
232c150a WD |
933 | return 0; |
934 | } | |
935 | ||
936 | static int usbtty_configured (void) | |
937 | { | |
938 | return usbtty_configured_flag; | |
939 | } | |
940 | ||
16c8d5e7 | 941 | /******************************************************************************/ |
232c150a WD |
942 | |
943 | static void usbtty_event_handler (struct usb_device_instance *device, | |
944 | usb_device_event_t event, int data) | |
945 | { | |
f9da0f89 VK |
946 | #if defined(CONFIG_USBD_HS) |
947 | int i; | |
948 | #endif | |
232c150a WD |
949 | switch (event) { |
950 | case DEVICE_RESET: | |
951 | case DEVICE_BUS_INACTIVE: | |
952 | usbtty_configured_flag = 0; | |
953 | break; | |
954 | case DEVICE_CONFIGURED: | |
955 | usbtty_configured_flag = 1; | |
956 | break; | |
957 | ||
958 | case DEVICE_ADDRESS_ASSIGNED: | |
f9da0f89 VK |
959 | #if defined(CONFIG_USBD_HS) |
960 | /* | |
961 | * is_usbd_high_speed routine needs to be defined by | |
962 | * specific gadget driver | |
472d5460 YS |
963 | * It returns true if device enumerates at High speed |
964 | * Retuns false otherwise | |
f9da0f89 VK |
965 | */ |
966 | for (i = 0; i < NUM_ENDPOINTS; i++) { | |
967 | if (((ep_descriptor_ptrs[i]->bmAttributes & | |
968 | USB_ENDPOINT_XFERTYPE_MASK) == | |
969 | USB_ENDPOINT_XFER_BULK) | |
970 | && is_usbd_high_speed()) { | |
971 | ||
972 | ep_descriptor_ptrs[i]->wMaxPacketSize = | |
973 | CONFIG_USBD_SERIAL_BULK_HS_PKTSIZE; | |
974 | } | |
975 | ||
976 | endpoint_instance[i + 1].tx_packetSize = | |
977 | ep_descriptor_ptrs[i]->wMaxPacketSize; | |
978 | endpoint_instance[i + 1].rcv_packetSize = | |
979 | ep_descriptor_ptrs[i]->wMaxPacketSize; | |
980 | } | |
981 | #endif | |
232c150a WD |
982 | usbtty_init_endpoints (); |
983 | ||
984 | default: | |
985 | break; | |
986 | } | |
987 | } | |
988 | ||
16c8d5e7 WD |
989 | /******************************************************************************/ |
990 | ||
991 | int usbtty_cdc_setup(struct usb_device_request *request, struct urb *urb) | |
992 | { | |
993 | switch (request->bRequest){ | |
232c150a | 994 | |
53677ef1 | 995 | case ACM_SET_CONTROL_LINE_STATE: /* Implies DTE ready */ |
16c8d5e7 | 996 | break; |
53677ef1 | 997 | case ACM_SEND_ENCAPSULATED_COMMAND : /* Required */ |
16c8d5e7 WD |
998 | break; |
999 | case ACM_SET_LINE_ENCODING : /* DTE stop/parity bits | |
386eda02 | 1000 | * per character */ |
16c8d5e7 | 1001 | break; |
53677ef1 | 1002 | case ACM_GET_ENCAPSULATED_RESPONSE : /* request response */ |
16c8d5e7 WD |
1003 | break; |
1004 | case ACM_GET_LINE_ENCODING : /* request DTE rate, | |
1005 | * stop/parity bits */ | |
1006 | memcpy (urb->buffer , &rs232_desc, sizeof(rs232_desc)); | |
1007 | urb->actual_length = sizeof(rs232_desc); | |
1008 | ||
1009 | break; | |
53677ef1 | 1010 | default: |
16c8d5e7 WD |
1011 | return 1; |
1012 | } | |
1013 | return 0; | |
1014 | } | |
1015 | ||
1016 | /******************************************************************************/ | |
232c150a WD |
1017 | |
1018 | /* | |
1019 | * Since interrupt handling has not yet been implemented, we use this function | |
1020 | * to handle polling. This is called by the tstc,getc,putc,puts routines to | |
1021 | * update the USB state. | |
1022 | */ | |
1023 | void usbtty_poll (void) | |
1024 | { | |
1025 | /* New interrupts? */ | |
16c8d5e7 | 1026 | udc_irq(); |
232c150a | 1027 | |
386eda02 WD |
1028 | /* Write any output data to host buffer |
1029 | * (do this before checking interrupts to avoid missing one) | |
16c8d5e7 | 1030 | */ |
232c150a WD |
1031 | if (usbtty_configured ()) { |
1032 | write_buffer (&usbtty_output); | |
1033 | } | |
1034 | ||
1035 | /* New interrupts? */ | |
16c8d5e7 | 1036 | udc_irq(); |
386eda02 WD |
1037 | |
1038 | /* Check for new data from host.. | |
1039 | * (do this after checking interrupts to get latest data) | |
16c8d5e7 | 1040 | */ |
232c150a WD |
1041 | if (usbtty_configured ()) { |
1042 | fill_buffer (&usbtty_input); | |
1043 | } | |
1044 | ||
1045 | /* New interrupts? */ | |
16c8d5e7 | 1046 | udc_irq(); |
232c150a | 1047 | |
232c150a | 1048 | } |