P4 fixes

resources/espressif__esp_hosted/host/utils/common.c

@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2015-2021 Espressif Systems (Shanghai) PTE LTD
+//
+// 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.
+//
+
+/** Includes **/
+#include "common.h"
+#include "esp_log.h"
+#include <stdlib.h>
+#include <errno.h>
+
+#if 0
+DEFINE_LOG_TAG(utils);
+#endif
+/** Constants/Macros **/
+
+/** Exported variables **/
+
+
+/** Function declaration **/
+
+/** Exported Functions **/
+/**
+  * @brief  debug buffer print
+  * @param  buff - input buffer to print in hex
+  *         rx_len - buff len
+  *         human_str - helping string to describe about buffer
+  * @retval None
+  */
+#if DEBUG_HEX_STREAM_PRINT
+char print_buff[MAX_SPI_BUFFER_SIZE*3];
+#endif
+
+uint16_t hton_short (uint16_t x)
+{
+#if BYTE_ORDER == BIG_ENDIAN
+  return x;
+#elif BYTE_ORDER == LITTLE_ENDIAN
+  uint16_t val = 0;
+
+  val = (x &0x00FF)<<8;
+  val |= (x &0xFF00)>>8;
+
+  return val;
+#else
+# error "not able to identify endianness"
+#endif
+}
+
+uint32_t hton_long (uint32_t x)
+{
+#if BYTE_ORDER == BIG_ENDIAN
+  return x;
+#elif BYTE_ORDER == LITTLE_ENDIAN
+    uint32_t val = (x&0xFF000000) >> 24;
+
+    val |= (x&0x00FF0000) >> 8;
+    val |= (x&0x0000FF00) << 8;
+    val |= (x&0x000000FF) << 24;
+
+    return val;
+#else
+# error "not able to identify endianness"
+#endif
+}
+
+/**
+  * @brief  Calculate minimum
+  * @param  x - number
+  *         y - number
+  * @retval minimum
+  */
+int min(int x, int y) {
+    return (x < y) ? x : y;
+}
+
+#if 0
+/**
+  * @brief  get numbers from string
+  * @param  val - return integer value,
+  *         arg - input string
+  * @retval STM_OK on success, else STM_FAIL
+  */
+int get_num_from_string(int *val, char *arg)
+{
+  int base = 10;
+  char *endptr = NULL, *str = NULL;
+
+  if (!arg || (arg[0]=='\0')) {
+    ESP_LOGE(TAG, "No number Identified \n");
+    return STM_FAIL;
+  }
+
+  if (!val) {
+    ESP_LOGE(TAG, "No memory allocated \n");
+    return STM_FAIL;
+  }
+
+  errno = 0;
+  str = arg;
+  *val = strtol(str, &endptr, base);
+
+  if (endptr == str) {
+    ESP_LOGE(TAG, "No digits found \n");
+    *val = 0;
+    return STM_FAIL;
+  }
+
+  if ((errno == ERANGE) && ((*val == INT32_MAX) || (*val == INT32_MIN))) {
+    perror("strtol");
+    *val = 0;
+    return STM_FAIL;
+  }
+
+  return STM_OK;
+}
+#endif
+
+/** Local functions **/