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fastboot: break fastboot 64 bytes limit 

Some message can not be complete transmission because
the fastboot can only transmit 64 bytes one time. So add
sleep_thread() to judge whether the data is complete
transmission before call fastboot_complete().

Change-Id: I9057ffc9ca4b92db8c9ab14e4650d386c5d06254
Signed-off-by: Jason Zhu <jason.zhu@rock-chips.com>
This commit is contained in:
Jason Zhu 2018-03-05 20:49:09 +08:00 committed by Kever Yang
parent 333857218c
commit de78ceae23
1 changed files with 76 additions and 0 deletions
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76
drivers/usb/gadget/f_fastboot.c
View File

@ -49,6 +49,7 @@
#define TX_ENDPOINT_MAXIMUM_PACKET_SIZE (0x0040)
#define EP_BUFFER_SIZE 4096
#define SLEEP_COUNT 20000
/*
* EP_BUFFER_SIZE must always be an integral multiple of maxpacket size
* (64 or 512 or 1024), else we break on certain controllers like DWC3
@ -74,6 +75,7 @@ static unsigned int download_bytes;
static unsigned int upload_size;
static unsigned int upload_bytes;
static bool start_upload;
static unsigned intthread_wakeup_needed;
static struct usb_endpoint_descriptor fs_ep_in = {
.bLength = USB_DT_ENDPOINT_SIZE,
@ -162,10 +164,78 @@ static struct usb_gadget_strings *fastboot_strings[] = {
static void rx_handler_command(struct usb_ep *ep, struct usb_request *req);
static int strcmp_l1(const char *s1, const char *s2);
static void wakeup_thread(void)
{
intthread_wakeup_needed = false;
}
static void busy_indicator(void)
{
static int state;
switch (state) {
case 0:
puts("\r|"); break;
case 1:
puts("\r/"); break;
case 2:
puts("\r-"); break;
case 3:
puts("\r\\"); break;
case 4:
puts("\r|"); break;
case 5:
puts("\r/"); break;
case 6:
puts("\r-"); break;
case 7:
puts("\r\\"); break;
default:
state = 0;
}
if (state++ == 8)
state = 0;
}
static int sleep_thread(void)
{
int rc = 0;
int i = 0, k = 0;
/* Wait until a signal arrives or we are woken up */
for (;;) {
if (!intthread_wakeup_needed)
break;
if (++i == SLEEP_COUNT) {
busy_indicator();
i = 0;
k++;
}
if (k == 10) {
/* Handle CTRL+C */
if (ctrlc())
return -EPIPE;
/* Check cable connection */
if (!g_dnl_board_usb_cable_connected())
return -EIO;
k = 0;
}
usb_gadget_handle_interrupts(0);
}
intthread_wakeup_needed = true;
return rc;
}
static void fastboot_complete(struct usb_ep *ep, struct usb_request *req)
{
int status = req->status;
wakeup_thread();
if (!status)
return;
printf("status: %d ep '%s' trans: %d\n", status, ep->name, req->actual);
@ -363,6 +433,12 @@ static int fastboot_tx_write(const char *buffer, unsigned int buffer_size)
static int fastboot_tx_write_str(const char *buffer)
{
int ret;
ret = sleep_thread();
if (ret < 0)
printf("warning: 0x%x, usb transmission is abnormal!\n", ret);
return fastboot_tx_write(buffer, strlen(buffer));
}