Rename the sdk_prototypes header to sdk_private

include/espressif/sdk_private.h

@@ -0,0 +1,51 @@
+/* sdk_private.h
+
+   This source file contains function prototypes for "private" but
+   useful functions defined in the "binary blob" ESP IoT RTOS SDK libraries.
+
+   For the "public" API, check the esp_common header file and the various
+   sub-headers it includes.
+
+   Function names here have the 'sdk_' prefix that is attached to all
+   binary library symbols by the esp-open-rtos build process.
+
+   This file is a part of esp-open-rtos.
+*/
+#ifndef SDK_PRIVATE_H
+#define SDK_PRIVATE_H
+
+#include <stdint.h>
+struct ip_addr;
+
+/*********************************************
+* Defined in libmain.a
+*********************************************
+*/
+
+/* Change UART divider without re-initialising UART.
+
+   uart_no = 0 or 1 for which UART
+   new_divisor = Calculated in the form UART_CLK_FREQ / BAUD
+ */
+void sdk_uart_div_modify(uint32_t uart_no, uint32_t new_divisor);
+
+/* Read a single character from the UART.
+ */
+char sdk_uart_rx_one_char(void);
+
+/* Write a single character to the UART.
+ */
+void sdk_os_putc(char c);
+
+/* Called when an IP gets set on the "station" (client) interface.
+ */
+void sdk_system_station_got_ip_set(struct ip_addr *ip_addr, struct ip_addr *sn_mask, struct ip_addr *gw_addr);
+
+/* This is a no-op wrapper around ppRecycleRxPkt, which is defined in libpp.a
+
+   It's called when a pbuf is freed, and allows pp to reuse the 'eb' pointer to ESP-specific
+   pbuf data. (See esp-lwip pbuf.h)
+ */
+void sdk_system_pp_recycle_rx_pkt(void *eb);
+
+#endif