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authorbarthess <barthess@yandex.ru>2016-04-07 16:39:12 +0300
committerbarthess <barthess@yandex.ru>2016-04-07 16:39:12 +0300
commit9d74dd2661b80a5ae8598591f0251b197cc51756 (patch)
tree0c833cbd2f4cf5845358ee0f37fbb3f95b7a447b /os/hal/src/usbh/hal_usbh_desciter.c
parentb86af2c09feea9b50cb241c147a3881e55763a55 (diff)
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STM32 mass update to current naming convention in ChibiOS
Diffstat (limited to 'os/hal/src/usbh/hal_usbh_desciter.c')
-rw-r--r--os/hal/src/usbh/hal_usbh_desciter.c165
1 files changed, 165 insertions, 0 deletions
diff --git a/os/hal/src/usbh/hal_usbh_desciter.c b/os/hal/src/usbh/hal_usbh_desciter.c
new file mode 100644
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+++ b/os/hal/src/usbh/hal_usbh_desciter.c
@@ -0,0 +1,165 @@
+/*
+ ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio
+ Copyright (C) 2015 Diego Ismirlian, TISA, (dismirlian (at) google's mail)
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+#include "hal.h"
+
+#if HAL_USE_USBH
+
+#include "usbh/defs.h"
+#include "usbh/desciter.h"
+
+void cfg_iter_init(generic_iterator_t *icfg, const uint8_t *buff, uint16_t rem) {
+ icfg->valid = 0;
+
+ if ((buff[0] < 2) || (rem < 2) || (rem < buff[0])
+ || (buff[0] < USBH_DT_CONFIG_SIZE)
+ || (buff[1] != USBH_DT_CONFIG))
+ return;
+
+ if (rem > ((usbh_config_descriptor_t *)buff)->wTotalLength) {
+ rem = ((usbh_config_descriptor_t *)buff)->wTotalLength;
+ }
+
+ icfg->valid = 1;
+ icfg->rem = rem;
+ icfg->curr = buff;
+}
+
+void if_iter_next(if_iterator_t *iif) {
+ const uint8_t *curr = iif->curr;
+ uint16_t rem = iif->rem;
+
+ iif->valid = 0;
+
+ if ((curr[0] < 2) || (rem < 2) || (rem < curr[0]))
+ return;
+
+ for (;;) {
+ rem -= curr[0];
+ curr += curr[0];
+
+ if ((curr[0] < 2) || (rem < 2) || (rem < curr[0]))
+ return;
+
+ if (curr[1] == USBH_DT_INTERFACE_ASSOCIATION) {
+ if (curr[0] < USBH_DT_INTERFACE_ASSOCIATION_SIZE)
+ return;
+
+ iif->iad = (usbh_ia_descriptor_t *)curr;
+
+ } else if (curr[1] == USBH_DT_INTERFACE) {
+ if (curr[0] < USBH_DT_INTERFACE_SIZE)
+ return;
+
+ if (iif->iad) {
+ if ((curr[2] < iif->iad->bFirstInterface)
+ || (curr[2] >= (iif->iad->bFirstInterface + iif->iad->bInterfaceCount)))
+ iif->iad = 0;
+ }
+ break;
+ }
+ }
+
+ iif->valid = 1;
+ iif->rem = rem;
+ iif->curr = curr;
+}
+
+void if_iter_init(if_iterator_t *iif, const generic_iterator_t *icfg) {
+ iif->iad = 0;
+ iif->curr = icfg->curr;
+ iif->rem = icfg->rem;
+ if_iter_next(iif);
+}
+
+void ep_iter_next(generic_iterator_t *iep) {
+ const uint8_t *curr = iep->curr;
+ uint16_t rem = iep->rem;
+
+ iep->valid = 0;
+
+ if ((curr[0] < 2) || (rem < 2) || (rem < curr[0]))
+ return;
+
+ for (;;) {
+ rem -= curr[0];
+ curr += curr[0];
+
+ if ((curr[0] < 2) || (rem < 2) || (rem < curr[0]))
+ return;
+
+ if ((curr[1] == USBH_DT_INTERFACE_ASSOCIATION)
+ || (curr[1] == USBH_DT_INTERFACE)
+ || (curr[1] == USBH_DT_CONFIG)) {
+ return;
+ } else if (curr[1] == USBH_DT_ENDPOINT) {
+ if (curr[0] < USBH_DT_ENDPOINT_SIZE)
+ return;
+
+ break;
+ }
+ }
+
+ iep->valid = 1;
+ iep->rem = rem;
+ iep->curr = curr;
+}
+
+void ep_iter_init(generic_iterator_t *iep, const if_iterator_t *iif) {
+ iep->curr = iif->curr;
+ iep->rem = iif->rem;
+ ep_iter_next(iep);
+}
+
+void cs_iter_next(generic_iterator_t *ics) {
+ const uint8_t *curr = ics->curr;
+ uint16_t rem = ics->rem;
+
+ ics->valid = 0;
+
+ if ((curr[0] < 2) || (rem < 2) || (rem < curr[0]))
+ return;
+
+ //for (;;) {
+ rem -= curr[0];
+ curr += curr[0];
+
+ if ((curr[0] < 2) || (rem < 2) || (rem < curr[0]))
+ return;
+
+ if ((curr[1] == USBH_DT_INTERFACE_ASSOCIATION)
+ || (curr[1] == USBH_DT_INTERFACE)
+ || (curr[1] == USBH_DT_CONFIG)
+ || (curr[1] == USBH_DT_ENDPOINT)) {
+ return;
+ }
+
+ // break;
+ //}
+
+ ics->valid = 1;
+ ics->rem = rem;
+ ics->curr = curr;
+}
+
+void cs_iter_init(generic_iterator_t *ics, const generic_iterator_t *iter) {
+ ics->curr = iter->curr;
+ ics->rem = iter->rem;
+ cs_iter_next(ics);
+}
+
+#endif