*
* SPDX-License-Identifier: GPL-2.0+
*/
+#include <config.h>
#include <common.h>
#include <errno.h>
+#include <fastboot.h>
#include <malloc.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/compiler.h>
#include <version.h>
#include <g_dnl.h>
+#ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV
+#include <fb_mmc.h>
+#endif
+#ifdef CONFIG_FASTBOOT_FLASH_NAND_DEV
+#include <fb_nand.h>
+#endif
#define FASTBOOT_VERSION "0.4"
#define RX_ENDPOINT_MAXIMUM_PACKET_SIZE_1_1 (0x0040)
#define TX_ENDPOINT_MAXIMUM_PACKET_SIZE (0x0040)
-/* The 64 defined bytes plus \0 */
-#define RESPONSE_LEN (64 + 1)
-
#define EP_BUFFER_SIZE 4096
struct f_fastboot {
struct usb_function usb_function;
- /* IN/OUT EP's and correspoinding requests */
+ /* IN/OUT EP's and corresponding requests */
struct usb_ep *in_ep, *out_ep;
struct usb_request *in_req, *out_req;
};
}
static struct f_fastboot *fastboot_func;
+static unsigned int fastboot_flash_session_id;
static unsigned int download_size;
static unsigned int download_bytes;
+static bool is_high_speed;
static struct usb_endpoint_descriptor fs_ep_in = {
.bLength = USB_DT_ENDPOINT_SIZE,
};
static void rx_handler_command(struct usb_ep *ep, struct usb_request *req);
+static int strcmp_l1(const char *s1, const char *s2);
+
+
+void fastboot_fail(char *response, const char *reason)
+{
+ strncpy(response, "FAIL\0", 5);
+ strncat(response, reason, FASTBOOT_RESPONSE_LEN - 4 - 1);
+}
+
+void fastboot_okay(char *response, const char *reason)
+{
+ strncpy(response, "OKAY\0", 5);
+ strncat(response, reason, FASTBOOT_RESPONSE_LEN - 4 - 1);
+}
static void fastboot_complete(struct usb_ep *ep, struct usb_request *req)
{
int id;
struct usb_gadget *gadget = c->cdev->gadget;
struct f_fastboot *f_fb = func_to_fastboot(f);
+ const char *s;
/* DYNAMIC interface numbers assignments */
id = usb_interface_id(c, f);
hs_ep_out.bEndpointAddress = fs_ep_out.bEndpointAddress;
+ s = getenv("serial#");
+ if (s)
+ g_dnl_set_serialnumber((char *)s);
+
return 0;
}
__func__, f->name, interface, alt);
/* make sure we don't enable the ep twice */
- if (gadget->speed == USB_SPEED_HIGH)
+ if (gadget->speed == USB_SPEED_HIGH) {
ret = usb_ep_enable(f_fb->out_ep, &hs_ep_out);
- else
+ is_high_speed = true;
+ } else {
ret = usb_ep_enable(f_fb->out_ep, &fs_ep_out);
+ is_high_speed = false;
+ }
if (ret) {
puts("failed to enable out ep\n");
return ret;
}
DECLARE_GADGET_BIND_CALLBACK(usb_dnl_fastboot, fastboot_add);
-int fastboot_tx_write(const char *buffer, unsigned int buffer_size)
+static int fastboot_tx_write(const char *buffer, unsigned int buffer_size)
{
struct usb_request *in_req = fastboot_func->in_req;
int ret;
memcpy(in_req->buf, buffer, buffer_size);
in_req->length = buffer_size;
+
+ usb_ep_dequeue(fastboot_func->in_ep, in_req);
+
ret = usb_ep_queue(fastboot_func->in_ep, in_req, 0);
if (ret)
printf("Error %d on queue\n", ret);
do_reset(NULL, 0, 0, NULL);
}
+int __weak fb_set_reboot_flag(void)
+{
+ return -ENOSYS;
+}
+
static void cb_reboot(struct usb_ep *ep, struct usb_request *req)
{
+ char *cmd = req->buf;
+ if (!strcmp_l1("reboot-bootloader", cmd)) {
+ if (fb_set_reboot_flag()) {
+ fastboot_tx_write_str("FAILCannot set reboot flag");
+ return;
+ }
+ }
fastboot_func->in_req->complete = compl_do_reset;
fastboot_tx_write_str("OKAY");
}
static void cb_getvar(struct usb_ep *ep, struct usb_request *req)
{
char *cmd = req->buf;
- char response[RESPONSE_LEN];
+ char response[FASTBOOT_RESPONSE_LEN];
const char *s;
size_t chars_left;
strsep(&cmd, ":");
if (!cmd) {
+ error("missing variable\n");
fastboot_tx_write_str("FAILmissing var");
return;
}
strncat(response, FASTBOOT_VERSION, chars_left);
} else if (!strcmp_l1("bootloader-version", cmd)) {
strncat(response, U_BOOT_VERSION, chars_left);
- } else if (!strcmp_l1("downloadsize", cmd)) {
+ } else if (!strcmp_l1("downloadsize", cmd) ||
+ !strcmp_l1("max-download-size", cmd)) {
char str_num[12];
- sprintf(str_num, "%08x", CONFIG_USB_FASTBOOT_BUF_SIZE);
+ sprintf(str_num, "0x%08x", CONFIG_FASTBOOT_BUF_SIZE);
strncat(response, str_num, chars_left);
+
+ /*
+ * This also indicates the start of a new flashing
+ * "session", in which we could have 1-N buffers to
+ * write to a partition.
+ *
+ * Reset our session counter.
+ */
+ fastboot_flash_session_id = 0;
} else if (!strcmp_l1("serialno", cmd)) {
s = getenv("serial#");
if (s)
else
strcpy(response, "FAILValue not set");
} else {
+ error("unknown variable: %s\n", cmd);
strcpy(response, "FAILVariable not implemented");
}
fastboot_tx_write_str(response);
}
-static unsigned int rx_bytes_expected(void)
+static unsigned int rx_bytes_expected(unsigned int maxpacket)
{
int rx_remain = download_size - download_bytes;
+ int rem = 0;
if (rx_remain < 0)
return 0;
if (rx_remain > EP_BUFFER_SIZE)
return EP_BUFFER_SIZE;
+ if (rx_remain < maxpacket) {
+ rx_remain = maxpacket;
+ } else if (rx_remain % maxpacket != 0) {
+ rem = rx_remain % maxpacket;
+ rx_remain = rx_remain + (maxpacket - rem);
+ }
return rx_remain;
}
#define BYTES_PER_DOT 0x20000
static void rx_handler_dl_image(struct usb_ep *ep, struct usb_request *req)
{
- char response[RESPONSE_LEN];
+ char response[FASTBOOT_RESPONSE_LEN];
unsigned int transfer_size = download_size - download_bytes;
const unsigned char *buffer = req->buf;
unsigned int buffer_size = req->actual;
+ unsigned int pre_dot_num, now_dot_num;
+ unsigned int max;
if (req->status != 0) {
printf("Bad status: %d\n", req->status);
if (buffer_size < transfer_size)
transfer_size = buffer_size;
- memcpy((void *)CONFIG_USB_FASTBOOT_BUF_ADDR + download_bytes,
+ memcpy((void *)CONFIG_FASTBOOT_BUF_ADDR + download_bytes,
buffer, transfer_size);
+ pre_dot_num = download_bytes / BYTES_PER_DOT;
download_bytes += transfer_size;
+ now_dot_num = download_bytes / BYTES_PER_DOT;
+
+ if (pre_dot_num != now_dot_num) {
+ putc('.');
+ if (!(now_dot_num % 74))
+ putc('\n');
+ }
/* Check if transfer is done */
if (download_bytes >= download_size) {
req->complete = rx_handler_command;
req->length = EP_BUFFER_SIZE;
- sprintf(response, "OKAY");
+ strcpy(response, "OKAY");
fastboot_tx_write_str(response);
printf("\ndownloading of %d bytes finished\n", download_bytes);
} else {
- req->length = rx_bytes_expected();
+ max = is_high_speed ? hs_ep_out.wMaxPacketSize :
+ fs_ep_out.wMaxPacketSize;
+ req->length = rx_bytes_expected(max);
if (req->length < ep->maxpacket)
req->length = ep->maxpacket;
}
- if (download_bytes && !(download_bytes % BYTES_PER_DOT)) {
- putc('.');
- if (!(download_bytes % (74 * BYTES_PER_DOT)))
- putc('\n');
- }
req->actual = 0;
usb_ep_queue(ep, req, 0);
}
static void cb_download(struct usb_ep *ep, struct usb_request *req)
{
char *cmd = req->buf;
- char response[RESPONSE_LEN];
+ char response[FASTBOOT_RESPONSE_LEN];
+ unsigned int max;
strsep(&cmd, ":");
download_size = simple_strtoul(cmd, NULL, 16);
printf("Starting download of %d bytes\n", download_size);
if (0 == download_size) {
- sprintf(response, "FAILdata invalid size");
- } else if (download_size > CONFIG_USB_FASTBOOT_BUF_SIZE) {
+ strcpy(response, "FAILdata invalid size");
+ } else if (download_size > CONFIG_FASTBOOT_BUF_SIZE) {
download_size = 0;
- sprintf(response, "FAILdata too large");
+ strcpy(response, "FAILdata too large");
} else {
sprintf(response, "DATA%08x", download_size);
req->complete = rx_handler_dl_image;
- req->length = rx_bytes_expected();
+ max = is_high_speed ? hs_ep_out.wMaxPacketSize :
+ fs_ep_out.wMaxPacketSize;
+ req->length = rx_bytes_expected(max);
if (req->length < ep->maxpacket)
req->length = ep->maxpacket;
}
fastboot_tx_write_str("OKAY");
}
+static void do_exit_on_complete(struct usb_ep *ep, struct usb_request *req)
+{
+ g_dnl_trigger_detach();
+}
+
+static void cb_continue(struct usb_ep *ep, struct usb_request *req)
+{
+ fastboot_func->in_req->complete = do_exit_on_complete;
+ fastboot_tx_write_str("OKAY");
+}
+
+#ifdef CONFIG_FASTBOOT_FLASH
+static void cb_flash(struct usb_ep *ep, struct usb_request *req)
+{
+ char *cmd = req->buf;
+ char response[FASTBOOT_RESPONSE_LEN];
+
+ strsep(&cmd, ":");
+ if (!cmd) {
+ error("missing partition name\n");
+ fastboot_tx_write_str("FAILmissing partition name");
+ return;
+ }
+
+ strcpy(response, "FAILno flash device defined");
+#ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV
+ fb_mmc_flash_write(cmd, fastboot_flash_session_id,
+ (void *)CONFIG_FASTBOOT_BUF_ADDR,
+ download_bytes, response);
+#endif
+#ifdef CONFIG_FASTBOOT_FLASH_NAND_DEV
+ fb_nand_flash_write(cmd, fastboot_flash_session_id,
+ (void *)CONFIG_FASTBOOT_BUF_ADDR,
+ download_bytes, response);
+#endif
+ fastboot_flash_session_id++;
+ fastboot_tx_write_str(response);
+}
+#endif
+
+static void cb_oem(struct usb_ep *ep, struct usb_request *req)
+{
+ char *cmd = req->buf;
+#ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV
+ if (strncmp("format", cmd + 4, 6) == 0) {
+ char cmdbuf[32];
+ sprintf(cmdbuf, "gpt write mmc %x $partitions",
+ CONFIG_FASTBOOT_FLASH_MMC_DEV);
+ if (run_command(cmdbuf, 0))
+ fastboot_tx_write_str("FAIL");
+ else
+ fastboot_tx_write_str("OKAY");
+ } else
+#endif
+ if (strncmp("unlock", cmd + 4, 8) == 0) {
+ fastboot_tx_write_str("FAILnot implemented");
+ }
+ else {
+ fastboot_tx_write_str("FAILunknown oem command");
+ }
+}
+
+#ifdef CONFIG_FASTBOOT_FLASH
+static void cb_erase(struct usb_ep *ep, struct usb_request *req)
+{
+ char *cmd = req->buf;
+ char response[FASTBOOT_RESPONSE_LEN];
+
+ strsep(&cmd, ":");
+ if (!cmd) {
+ error("missing partition name");
+ fastboot_tx_write_str("FAILmissing partition name");
+ return;
+ }
+
+ strcpy(response, "FAILno flash device defined");
+
+#ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV
+ fb_mmc_erase(cmd, response);
+#endif
+#ifdef CONFIG_FASTBOOT_FLASH_NAND_DEV
+ fb_nand_erase(cmd, response);
+#endif
+ fastboot_tx_write_str(response);
+}
+#endif
+
struct cmd_dispatch_info {
char *cmd;
void (*cb)(struct usb_ep *ep, struct usb_request *req);
}, {
.cmd = "boot",
.cb = cb_boot,
+ }, {
+ .cmd = "continue",
+ .cb = cb_continue,
+ },
+#ifdef CONFIG_FASTBOOT_FLASH
+ {
+ .cmd = "flash",
+ .cb = cb_flash,
+ }, {
+ .cmd = "erase",
+ .cb = cb_erase,
+ },
+#endif
+ {
+ .cmd = "oem",
+ .cb = cb_oem,
},
};
void (*func_cb)(struct usb_ep *ep, struct usb_request *req) = NULL;
int i;
+ if (req->status != 0 || req->length == 0)
+ return;
+
for (i = 0; i < ARRAY_SIZE(cmd_dispatch_info); i++) {
if (!strcmp_l1(cmd_dispatch_info[i].cmd, cmdbuf)) {
func_cb = cmd_dispatch_info[i].cb;
}
}
- if (!func_cb)
+ if (!func_cb) {
+ error("unknown command: %s\n", cmdbuf);
fastboot_tx_write_str("FAILunknown command");
- else
- func_cb(ep, req);
-
- if (req->status == 0) {
- *cmdbuf = '\0';
- req->actual = 0;
- usb_ep_queue(ep, req, 0);
+ } else {
+ if (req->actual < req->length) {
+ u8 *buf = (u8 *)req->buf;
+ buf[req->actual] = 0;
+ func_cb(ep, req);
+ } else {
+ error("buffer overflow\n");
+ fastboot_tx_write_str("FAILbuffer overflow");
+ }
}
+
+ *cmdbuf = '\0';
+ req->actual = 0;
+ usb_ep_queue(ep, req, 0);
}