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fix(core/usbd_core): fix two bugs

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- fix current_desc_len += p[DESC_bLength] before p+= p[DESC_bLength]
- fix reset all eps when alt_setting=0

Signed-off-by: sakumisu <1203593632@qq.com>
This commit is contained in:
sakumisu 2025-03-04 17:07:36 +08:00
parent 6378fb88d0
commit e581097309
1 changed files with 3 additions and 5 deletions
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8
core/usbd_core.c
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@ -446,8 +446,8 @@ static bool usbd_set_configuration(uint8_t busid, uint8_t config_index, uint8_t
}
/* skip to next descriptor */
p += p[DESC_bLength];
current_desc_len += p[DESC_bLength];
p += p[DESC_bLength];
if (current_desc_len >= desc_len && desc_len) {
break;
}
@ -512,7 +512,6 @@ static bool usbd_set_interface(uint8_t busid, uint8_t iface, uint8_t alt_setting
if (alt_setting == 0) {
ret = usbd_reset_endpoint(busid, ep_desc);
goto find_end;
} else if (cur_alt_setting == alt_setting) {
ret = usbd_set_endpoint(busid, ep_desc);
} else {
@ -526,14 +525,13 @@ static bool usbd_set_interface(uint8_t busid, uint8_t iface, uint8_t alt_setting
}
/* skip to next descriptor */
p += p[DESC_bLength];
current_desc_len += p[DESC_bLength];
p += p[DESC_bLength];
if (current_desc_len >= desc_len && desc_len) {
break;
}
}
find_end:
usbd_class_event_notify_handler(busid, USBD_EVENT_SET_INTERFACE, (void *)if_desc);
return ret;
@ -700,8 +698,8 @@ static bool usbd_std_interface_req_handler(uint8_t busid, struct usb_setup_packe
}
/* skip to next descriptor */
p += p[DESC_bLength];
current_desc_len += p[DESC_bLength];
p += p[DESC_bLength];
if (current_desc_len >= desc_len && desc_len) {
break;
}