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Sebastian Siewior3aab70a2014-05-05 15:08:10 -05001/*
2 * (C) Copyright 2008 - 2009
3 * Windriver, <www.windriver.com>
4 * Tom Rix <Tom.Rix@windriver.com>
5 *
6 * Copyright 2011 Sebastian Andrzej Siewior <bigeasy@linutronix.de>
7 *
8 * Copyright 2014 Linaro, Ltd.
9 * Rob Herring <robh@kernel.org>
10 *
11 * SPDX-License-Identifier: GPL-2.0+
12 */
Steve Rae593cbd92014-08-26 11:47:29 -070013#include <config.h>
Sebastian Siewior3aab70a2014-05-05 15:08:10 -050014#include <common.h>
15#include <errno.h>
16#include <malloc.h>
17#include <linux/usb/ch9.h>
18#include <linux/usb/gadget.h>
19#include <linux/usb/composite.h>
20#include <linux/compiler.h>
21#include <version.h>
22#include <g_dnl.h>
Steve Raed1b5ed02014-08-26 11:47:28 -070023#ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV
24#include <fb_mmc.h>
25#endif
Sebastian Siewior3aab70a2014-05-05 15:08:10 -050026
27#define FASTBOOT_VERSION "0.4"
28
29#define FASTBOOT_INTERFACE_CLASS 0xff
30#define FASTBOOT_INTERFACE_SUB_CLASS 0x42
31#define FASTBOOT_INTERFACE_PROTOCOL 0x03
32
33#define RX_ENDPOINT_MAXIMUM_PACKET_SIZE_2_0 (0x0200)
34#define RX_ENDPOINT_MAXIMUM_PACKET_SIZE_1_1 (0x0040)
35#define TX_ENDPOINT_MAXIMUM_PACKET_SIZE (0x0040)
36
37/* The 64 defined bytes plus \0 */
38#define RESPONSE_LEN (64 + 1)
39
40#define EP_BUFFER_SIZE 4096
41
42struct f_fastboot {
43 struct usb_function usb_function;
44
Steve Rae593cbd92014-08-26 11:47:29 -070045 /* IN/OUT EP's and corresponding requests */
Sebastian Siewior3aab70a2014-05-05 15:08:10 -050046 struct usb_ep *in_ep, *out_ep;
47 struct usb_request *in_req, *out_req;
48};
49
50static inline struct f_fastboot *func_to_fastboot(struct usb_function *f)
51{
52 return container_of(f, struct f_fastboot, usb_function);
53}
54
55static struct f_fastboot *fastboot_func;
56static unsigned int download_size;
57static unsigned int download_bytes;
Dileep Katta9e4b5102015-02-17 02:02:36 +053058static bool is_high_speed;
Sebastian Siewior3aab70a2014-05-05 15:08:10 -050059
60static struct usb_endpoint_descriptor fs_ep_in = {
61 .bLength = USB_DT_ENDPOINT_SIZE,
62 .bDescriptorType = USB_DT_ENDPOINT,
63 .bEndpointAddress = USB_DIR_IN,
64 .bmAttributes = USB_ENDPOINT_XFER_BULK,
65 .wMaxPacketSize = TX_ENDPOINT_MAXIMUM_PACKET_SIZE,
66 .bInterval = 0x00,
67};
68
69static struct usb_endpoint_descriptor fs_ep_out = {
70 .bLength = USB_DT_ENDPOINT_SIZE,
71 .bDescriptorType = USB_DT_ENDPOINT,
72 .bEndpointAddress = USB_DIR_OUT,
73 .bmAttributes = USB_ENDPOINT_XFER_BULK,
74 .wMaxPacketSize = RX_ENDPOINT_MAXIMUM_PACKET_SIZE_1_1,
75 .bInterval = 0x00,
76};
77
78static struct usb_endpoint_descriptor hs_ep_out = {
79 .bLength = USB_DT_ENDPOINT_SIZE,
80 .bDescriptorType = USB_DT_ENDPOINT,
81 .bEndpointAddress = USB_DIR_OUT,
82 .bmAttributes = USB_ENDPOINT_XFER_BULK,
83 .wMaxPacketSize = RX_ENDPOINT_MAXIMUM_PACKET_SIZE_2_0,
84 .bInterval = 0x00,
85};
86
87static struct usb_interface_descriptor interface_desc = {
88 .bLength = USB_DT_INTERFACE_SIZE,
89 .bDescriptorType = USB_DT_INTERFACE,
90 .bInterfaceNumber = 0x00,
91 .bAlternateSetting = 0x00,
92 .bNumEndpoints = 0x02,
93 .bInterfaceClass = FASTBOOT_INTERFACE_CLASS,
94 .bInterfaceSubClass = FASTBOOT_INTERFACE_SUB_CLASS,
95 .bInterfaceProtocol = FASTBOOT_INTERFACE_PROTOCOL,
96};
97
98static struct usb_descriptor_header *fb_runtime_descs[] = {
99 (struct usb_descriptor_header *)&interface_desc,
100 (struct usb_descriptor_header *)&fs_ep_in,
101 (struct usb_descriptor_header *)&hs_ep_out,
102 NULL,
103};
104
105/*
106 * static strings, in UTF-8
107 */
108static const char fastboot_name[] = "Android Fastboot";
109
110static struct usb_string fastboot_string_defs[] = {
111 [0].s = fastboot_name,
112 { } /* end of list */
113};
114
115static struct usb_gadget_strings stringtab_fastboot = {
116 .language = 0x0409, /* en-us */
117 .strings = fastboot_string_defs,
118};
119
120static struct usb_gadget_strings *fastboot_strings[] = {
121 &stringtab_fastboot,
122 NULL,
123};
124
125static void rx_handler_command(struct usb_ep *ep, struct usb_request *req);
Alexey Firagoe2ec3e42015-02-25 17:10:47 +0300126static int strcmp_l1(const char *s1, const char *s2);
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500127
128static void fastboot_complete(struct usb_ep *ep, struct usb_request *req)
129{
130 int status = req->status;
131 if (!status)
132 return;
133 printf("status: %d ep '%s' trans: %d\n", status, ep->name, req->actual);
134}
135
136static int fastboot_bind(struct usb_configuration *c, struct usb_function *f)
137{
138 int id;
139 struct usb_gadget *gadget = c->cdev->gadget;
140 struct f_fastboot *f_fb = func_to_fastboot(f);
Dileep Katta537cd072015-02-13 14:33:43 +0800141 const char *s;
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500142
143 /* DYNAMIC interface numbers assignments */
144 id = usb_interface_id(c, f);
145 if (id < 0)
146 return id;
147 interface_desc.bInterfaceNumber = id;
148
149 id = usb_string_id(c->cdev);
150 if (id < 0)
151 return id;
152 fastboot_string_defs[0].id = id;
153 interface_desc.iInterface = id;
154
155 f_fb->in_ep = usb_ep_autoconfig(gadget, &fs_ep_in);
156 if (!f_fb->in_ep)
157 return -ENODEV;
158 f_fb->in_ep->driver_data = c->cdev;
159
160 f_fb->out_ep = usb_ep_autoconfig(gadget, &fs_ep_out);
161 if (!f_fb->out_ep)
162 return -ENODEV;
163 f_fb->out_ep->driver_data = c->cdev;
164
165 hs_ep_out.bEndpointAddress = fs_ep_out.bEndpointAddress;
166
Dileep Katta537cd072015-02-13 14:33:43 +0800167 s = getenv("serial#");
168 if (s)
169 g_dnl_set_serialnumber((char *)s);
170
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500171 return 0;
172}
173
174static void fastboot_unbind(struct usb_configuration *c, struct usb_function *f)
175{
176 memset(fastboot_func, 0, sizeof(*fastboot_func));
177}
178
179static void fastboot_disable(struct usb_function *f)
180{
181 struct f_fastboot *f_fb = func_to_fastboot(f);
182
183 usb_ep_disable(f_fb->out_ep);
184 usb_ep_disable(f_fb->in_ep);
185
186 if (f_fb->out_req) {
187 free(f_fb->out_req->buf);
188 usb_ep_free_request(f_fb->out_ep, f_fb->out_req);
189 f_fb->out_req = NULL;
190 }
191 if (f_fb->in_req) {
192 free(f_fb->in_req->buf);
193 usb_ep_free_request(f_fb->in_ep, f_fb->in_req);
194 f_fb->in_req = NULL;
195 }
196}
197
198static struct usb_request *fastboot_start_ep(struct usb_ep *ep)
199{
200 struct usb_request *req;
201
202 req = usb_ep_alloc_request(ep, 0);
203 if (!req)
204 return NULL;
205
206 req->length = EP_BUFFER_SIZE;
207 req->buf = memalign(CONFIG_SYS_CACHELINE_SIZE, EP_BUFFER_SIZE);
208 if (!req->buf) {
209 usb_ep_free_request(ep, req);
210 return NULL;
211 }
212
213 memset(req->buf, 0, req->length);
214 return req;
215}
216
217static int fastboot_set_alt(struct usb_function *f,
218 unsigned interface, unsigned alt)
219{
220 int ret;
221 struct usb_composite_dev *cdev = f->config->cdev;
222 struct usb_gadget *gadget = cdev->gadget;
223 struct f_fastboot *f_fb = func_to_fastboot(f);
224
225 debug("%s: func: %s intf: %d alt: %d\n",
226 __func__, f->name, interface, alt);
227
228 /* make sure we don't enable the ep twice */
Dileep Katta9e4b5102015-02-17 02:02:36 +0530229 if (gadget->speed == USB_SPEED_HIGH) {
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500230 ret = usb_ep_enable(f_fb->out_ep, &hs_ep_out);
Dileep Katta9e4b5102015-02-17 02:02:36 +0530231 is_high_speed = true;
232 } else {
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500233 ret = usb_ep_enable(f_fb->out_ep, &fs_ep_out);
Dileep Katta9e4b5102015-02-17 02:02:36 +0530234 is_high_speed = false;
235 }
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500236 if (ret) {
237 puts("failed to enable out ep\n");
238 return ret;
239 }
240
241 f_fb->out_req = fastboot_start_ep(f_fb->out_ep);
242 if (!f_fb->out_req) {
243 puts("failed to alloc out req\n");
244 ret = -EINVAL;
245 goto err;
246 }
247 f_fb->out_req->complete = rx_handler_command;
248
249 ret = usb_ep_enable(f_fb->in_ep, &fs_ep_in);
250 if (ret) {
251 puts("failed to enable in ep\n");
252 goto err;
253 }
254
255 f_fb->in_req = fastboot_start_ep(f_fb->in_ep);
256 if (!f_fb->in_req) {
257 puts("failed alloc req in\n");
258 ret = -EINVAL;
259 goto err;
260 }
261 f_fb->in_req->complete = fastboot_complete;
262
263 ret = usb_ep_queue(f_fb->out_ep, f_fb->out_req, 0);
264 if (ret)
265 goto err;
266
267 return 0;
268err:
269 fastboot_disable(f);
270 return ret;
271}
272
273static int fastboot_add(struct usb_configuration *c)
274{
275 struct f_fastboot *f_fb = fastboot_func;
276 int status;
277
278 debug("%s: cdev: 0x%p\n", __func__, c->cdev);
279
280 if (!f_fb) {
281 f_fb = memalign(CONFIG_SYS_CACHELINE_SIZE, sizeof(*f_fb));
282 if (!f_fb)
283 return -ENOMEM;
284
285 fastboot_func = f_fb;
286 memset(f_fb, 0, sizeof(*f_fb));
287 }
288
289 f_fb->usb_function.name = "f_fastboot";
290 f_fb->usb_function.hs_descriptors = fb_runtime_descs;
291 f_fb->usb_function.bind = fastboot_bind;
292 f_fb->usb_function.unbind = fastboot_unbind;
293 f_fb->usb_function.set_alt = fastboot_set_alt;
294 f_fb->usb_function.disable = fastboot_disable;
295 f_fb->usb_function.strings = fastboot_strings;
296
297 status = usb_add_function(c, &f_fb->usb_function);
298 if (status) {
299 free(f_fb);
300 fastboot_func = f_fb;
301 }
302
303 return status;
304}
305DECLARE_GADGET_BIND_CALLBACK(usb_dnl_fastboot, fastboot_add);
306
Steve Rae593cbd92014-08-26 11:47:29 -0700307static int fastboot_tx_write(const char *buffer, unsigned int buffer_size)
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500308{
309 struct usb_request *in_req = fastboot_func->in_req;
310 int ret;
311
312 memcpy(in_req->buf, buffer, buffer_size);
313 in_req->length = buffer_size;
314 ret = usb_ep_queue(fastboot_func->in_ep, in_req, 0);
315 if (ret)
316 printf("Error %d on queue\n", ret);
317 return 0;
318}
319
320static int fastboot_tx_write_str(const char *buffer)
321{
322 return fastboot_tx_write(buffer, strlen(buffer));
323}
324
325static void compl_do_reset(struct usb_ep *ep, struct usb_request *req)
326{
327 do_reset(NULL, 0, 0, NULL);
328}
329
Alexey Firagoe2ec3e42015-02-25 17:10:47 +0300330int __weak fb_set_reboot_flag(void)
331{
332 return -ENOSYS;
333}
334
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500335static void cb_reboot(struct usb_ep *ep, struct usb_request *req)
336{
Alexey Firagoe2ec3e42015-02-25 17:10:47 +0300337 char *cmd = req->buf;
338 if (!strcmp_l1("reboot-bootloader", cmd)) {
339 if (fb_set_reboot_flag()) {
340 fastboot_tx_write_str("FAILCannot set reboot flag");
341 return;
342 }
343 }
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500344 fastboot_func->in_req->complete = compl_do_reset;
345 fastboot_tx_write_str("OKAY");
346}
347
348static int strcmp_l1(const char *s1, const char *s2)
349{
350 if (!s1 || !s2)
351 return -1;
352 return strncmp(s1, s2, strlen(s1));
353}
354
355static void cb_getvar(struct usb_ep *ep, struct usb_request *req)
356{
357 char *cmd = req->buf;
358 char response[RESPONSE_LEN];
359 const char *s;
Jeroen Hofstee29425be2014-06-14 00:57:14 +0200360 size_t chars_left;
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500361
362 strcpy(response, "OKAY");
Jeroen Hofstee29425be2014-06-14 00:57:14 +0200363 chars_left = sizeof(response) - strlen(response) - 1;
364
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500365 strsep(&cmd, ":");
366 if (!cmd) {
Steve Rae593cbd92014-08-26 11:47:29 -0700367 error("missing variable\n");
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500368 fastboot_tx_write_str("FAILmissing var");
369 return;
370 }
371
372 if (!strcmp_l1("version", cmd)) {
Jeroen Hofstee29425be2014-06-14 00:57:14 +0200373 strncat(response, FASTBOOT_VERSION, chars_left);
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500374 } else if (!strcmp_l1("bootloader-version", cmd)) {
Jeroen Hofstee29425be2014-06-14 00:57:14 +0200375 strncat(response, U_BOOT_VERSION, chars_left);
Eric Nelsonc674a662014-09-30 12:05:40 -0700376 } else if (!strcmp_l1("downloadsize", cmd) ||
377 !strcmp_l1("max-download-size", cmd)) {
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500378 char str_num[12];
379
Eric Nelson84c24f62014-09-30 12:05:41 -0700380 sprintf(str_num, "0x%08x", CONFIG_USB_FASTBOOT_BUF_SIZE);
Jeroen Hofstee29425be2014-06-14 00:57:14 +0200381 strncat(response, str_num, chars_left);
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500382 } else if (!strcmp_l1("serialno", cmd)) {
383 s = getenv("serial#");
384 if (s)
Jeroen Hofstee29425be2014-06-14 00:57:14 +0200385 strncat(response, s, chars_left);
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500386 else
387 strcpy(response, "FAILValue not set");
388 } else {
Steve Rae593cbd92014-08-26 11:47:29 -0700389 error("unknown variable: %s\n", cmd);
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500390 strcpy(response, "FAILVariable not implemented");
391 }
392 fastboot_tx_write_str(response);
393}
394
Dileep Katta9e4b5102015-02-17 02:02:36 +0530395static unsigned int rx_bytes_expected(unsigned int maxpacket)
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500396{
397 int rx_remain = download_size - download_bytes;
Dileep Katta9e4b5102015-02-17 02:02:36 +0530398 int rem = 0;
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500399 if (rx_remain < 0)
400 return 0;
401 if (rx_remain > EP_BUFFER_SIZE)
402 return EP_BUFFER_SIZE;
Dileep Katta9e4b5102015-02-17 02:02:36 +0530403 if (rx_remain < maxpacket) {
404 rx_remain = maxpacket;
405 } else if (rx_remain % maxpacket != 0) {
406 rem = rx_remain % maxpacket;
407 rx_remain = rx_remain + (maxpacket - rem);
408 }
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500409 return rx_remain;
410}
411
412#define BYTES_PER_DOT 0x20000
413static void rx_handler_dl_image(struct usb_ep *ep, struct usb_request *req)
414{
415 char response[RESPONSE_LEN];
416 unsigned int transfer_size = download_size - download_bytes;
417 const unsigned char *buffer = req->buf;
418 unsigned int buffer_size = req->actual;
Bo Shen23d1d102014-09-19 14:15:12 +0800419 unsigned int pre_dot_num, now_dot_num;
Dileep Katta9e4b5102015-02-17 02:02:36 +0530420 unsigned int max;
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500421
422 if (req->status != 0) {
423 printf("Bad status: %d\n", req->status);
424 return;
425 }
426
427 if (buffer_size < transfer_size)
428 transfer_size = buffer_size;
429
430 memcpy((void *)CONFIG_USB_FASTBOOT_BUF_ADDR + download_bytes,
431 buffer, transfer_size);
432
Bo Shen23d1d102014-09-19 14:15:12 +0800433 pre_dot_num = download_bytes / BYTES_PER_DOT;
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500434 download_bytes += transfer_size;
Bo Shen23d1d102014-09-19 14:15:12 +0800435 now_dot_num = download_bytes / BYTES_PER_DOT;
436
437 if (pre_dot_num != now_dot_num) {
438 putc('.');
439 if (!(now_dot_num % 74))
440 putc('\n');
441 }
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500442
443 /* Check if transfer is done */
444 if (download_bytes >= download_size) {
445 /*
446 * Reset global transfer variable, keep download_bytes because
447 * it will be used in the next possible flashing command
448 */
449 download_size = 0;
450 req->complete = rx_handler_command;
451 req->length = EP_BUFFER_SIZE;
452
453 sprintf(response, "OKAY");
454 fastboot_tx_write_str(response);
455
456 printf("\ndownloading of %d bytes finished\n", download_bytes);
457 } else {
Dileep Katta9e4b5102015-02-17 02:02:36 +0530458 max = is_high_speed ? hs_ep_out.wMaxPacketSize :
459 fs_ep_out.wMaxPacketSize;
460 req->length = rx_bytes_expected(max);
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500461 if (req->length < ep->maxpacket)
462 req->length = ep->maxpacket;
463 }
464
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500465 req->actual = 0;
466 usb_ep_queue(ep, req, 0);
467}
468
469static void cb_download(struct usb_ep *ep, struct usb_request *req)
470{
471 char *cmd = req->buf;
472 char response[RESPONSE_LEN];
Dileep Katta9e4b5102015-02-17 02:02:36 +0530473 unsigned int max;
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500474
475 strsep(&cmd, ":");
476 download_size = simple_strtoul(cmd, NULL, 16);
477 download_bytes = 0;
478
479 printf("Starting download of %d bytes\n", download_size);
480
481 if (0 == download_size) {
482 sprintf(response, "FAILdata invalid size");
483 } else if (download_size > CONFIG_USB_FASTBOOT_BUF_SIZE) {
484 download_size = 0;
485 sprintf(response, "FAILdata too large");
486 } else {
487 sprintf(response, "DATA%08x", download_size);
488 req->complete = rx_handler_dl_image;
Dileep Katta9e4b5102015-02-17 02:02:36 +0530489 max = is_high_speed ? hs_ep_out.wMaxPacketSize :
490 fs_ep_out.wMaxPacketSize;
491 req->length = rx_bytes_expected(max);
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500492 if (req->length < ep->maxpacket)
493 req->length = ep->maxpacket;
494 }
495 fastboot_tx_write_str(response);
496}
497
498static void do_bootm_on_complete(struct usb_ep *ep, struct usb_request *req)
499{
500 char boot_addr_start[12];
501 char *bootm_args[] = { "bootm", boot_addr_start, NULL };
502
503 puts("Booting kernel..\n");
504
505 sprintf(boot_addr_start, "0x%lx", load_addr);
506 do_bootm(NULL, 0, 2, bootm_args);
507
508 /* This only happens if image is somehow faulty so we start over */
509 do_reset(NULL, 0, 0, NULL);
510}
511
512static void cb_boot(struct usb_ep *ep, struct usb_request *req)
513{
514 fastboot_func->in_req->complete = do_bootm_on_complete;
515 fastboot_tx_write_str("OKAY");
516}
517
Rob Herring267abc62014-12-10 14:43:04 -0600518static void do_exit_on_complete(struct usb_ep *ep, struct usb_request *req)
519{
520 g_dnl_trigger_detach();
521}
522
523static void cb_continue(struct usb_ep *ep, struct usb_request *req)
524{
525 fastboot_func->in_req->complete = do_exit_on_complete;
526 fastboot_tx_write_str("OKAY");
527}
528
Steve Raed1b5ed02014-08-26 11:47:28 -0700529#ifdef CONFIG_FASTBOOT_FLASH
530static void cb_flash(struct usb_ep *ep, struct usb_request *req)
531{
532 char *cmd = req->buf;
533 char response[RESPONSE_LEN];
534
535 strsep(&cmd, ":");
536 if (!cmd) {
Steve Rae593cbd92014-08-26 11:47:29 -0700537 error("missing partition name\n");
Steve Raed1b5ed02014-08-26 11:47:28 -0700538 fastboot_tx_write_str("FAILmissing partition name");
539 return;
540 }
541
542 strcpy(response, "FAILno flash device defined");
543#ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV
544 fb_mmc_flash_write(cmd, (void *)CONFIG_USB_FASTBOOT_BUF_ADDR,
545 download_bytes, response);
546#endif
547 fastboot_tx_write_str(response);
548}
549#endif
550
Michael Scottde195622015-01-26 15:49:00 -0600551static void cb_oem(struct usb_ep *ep, struct usb_request *req)
552{
553 char *cmd = req->buf;
Rob Herring372d7de2015-01-26 15:49:01 -0600554#ifdef CONFIG_FASTBOOT_FLASH
555 if (strncmp("format", cmd + 4, 6) == 0) {
556 char cmdbuf[32];
557 sprintf(cmdbuf, "gpt write mmc %x $partitions",
558 CONFIG_FASTBOOT_FLASH_MMC_DEV);
559 if (run_command(cmdbuf, 0))
560 fastboot_tx_write_str("FAIL");
561 else
562 fastboot_tx_write_str("OKAY");
563 } else
564#endif
Michael Scottde195622015-01-26 15:49:00 -0600565 if (strncmp("unlock", cmd + 4, 8) == 0) {
566 fastboot_tx_write_str("FAILnot implemented");
567 }
568 else {
569 fastboot_tx_write_str("FAILunknown oem command");
570 }
571}
572
Dileep Katta89792382015-02-17 18:48:23 +0530573#ifdef CONFIG_FASTBOOT_FLASH
574static void cb_erase(struct usb_ep *ep, struct usb_request *req)
575{
576 char *cmd = req->buf;
577 char response[RESPONSE_LEN];
578
579 strsep(&cmd, ":");
580 if (!cmd) {
581 error("missing partition name");
582 fastboot_tx_write_str("FAILmissing partition name");
583 return;
584 }
585
586 strcpy(response, "FAILno flash device defined");
587
588#ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV
589 fb_mmc_erase(cmd, response);
590#endif
591 fastboot_tx_write_str(response);
592}
593#endif
594
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500595struct cmd_dispatch_info {
596 char *cmd;
597 void (*cb)(struct usb_ep *ep, struct usb_request *req);
598};
599
600static const struct cmd_dispatch_info cmd_dispatch_info[] = {
601 {
602 .cmd = "reboot",
603 .cb = cb_reboot,
604 }, {
605 .cmd = "getvar:",
606 .cb = cb_getvar,
607 }, {
608 .cmd = "download:",
609 .cb = cb_download,
610 }, {
611 .cmd = "boot",
612 .cb = cb_boot,
Rob Herring267abc62014-12-10 14:43:04 -0600613 }, {
614 .cmd = "continue",
615 .cb = cb_continue,
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500616 },
Steve Raed1b5ed02014-08-26 11:47:28 -0700617#ifdef CONFIG_FASTBOOT_FLASH
618 {
619 .cmd = "flash",
620 .cb = cb_flash,
Dileep Katta89792382015-02-17 18:48:23 +0530621 }, {
622 .cmd = "erase",
623 .cb = cb_erase,
Steve Raed1b5ed02014-08-26 11:47:28 -0700624 },
625#endif
Michael Scottde195622015-01-26 15:49:00 -0600626 {
627 .cmd = "oem",
628 .cb = cb_oem,
629 },
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500630};
631
632static void rx_handler_command(struct usb_ep *ep, struct usb_request *req)
633{
634 char *cmdbuf = req->buf;
635 void (*func_cb)(struct usb_ep *ep, struct usb_request *req) = NULL;
636 int i;
637
Paul Kocialkowski94b385f2015-07-04 16:46:15 +0200638 if (req->status != 0 || req->length == 0)
639 return;
640
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500641 for (i = 0; i < ARRAY_SIZE(cmd_dispatch_info); i++) {
642 if (!strcmp_l1(cmd_dispatch_info[i].cmd, cmdbuf)) {
643 func_cb = cmd_dispatch_info[i].cb;
644 break;
645 }
646 }
647
Steve Rae593cbd92014-08-26 11:47:29 -0700648 if (!func_cb) {
649 error("unknown command: %s\n", cmdbuf);
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500650 fastboot_tx_write_str("FAILunknown command");
Steve Rae593cbd92014-08-26 11:47:29 -0700651 } else {
Eric Nelsone2140582014-10-01 14:30:56 -0700652 if (req->actual < req->length) {
653 u8 *buf = (u8 *)req->buf;
654 buf[req->actual] = 0;
655 func_cb(ep, req);
656 } else {
657 error("buffer overflow\n");
658 fastboot_tx_write_str("FAILbuffer overflow");
659 }
Steve Rae593cbd92014-08-26 11:47:29 -0700660 }
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500661
Paul Kocialkowski94b385f2015-07-04 16:46:15 +0200662 *cmdbuf = '\0';
663 req->actual = 0;
664 usb_ep_queue(ep, req, 0);
Sebastian Siewior3aab70a2014-05-05 15:08:10 -0500665}