mirror of
https://github.com/tinygo-org/drivers.git
synced 2026-08-04 15:07:46 +00:00
Ayke van Laethem
f8dd441827
Work in progress. Does not work yet.
Some notes:
- This requires some changes to TinyGo, look at the espnet branch.
- The next step is probably defining all the functions in
g_wifi_osi_funcs (see espnet.c). Right now it hangs in
esp_wifi_init_internal, probably a NULL pointer dereference.
- This is only for the ESP32-C3. This will require some work to work
on other chips from Espressif.
99 lines
2.2 KiB
C
99 lines
2.2 KiB
C
#include <stdint.h>
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#include <stddef.h>
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#include <stdio.h>
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#include "espnet.h"
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// OS adapter functions.
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// See: esp-idf/components/esp_wifi/include/esp_private/wifi_os_adapter.h
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wifi_osi_funcs_t g_wifi_osi_funcs = {
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._version = ESP_WIFI_OS_ADAPTER_VERSION,
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// TODO: define these functions.
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._magic = ESP_WIFI_OS_ADAPTER_MAGIC,
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};
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// This is a string constant that is used all over ESP-IDF and is also used by
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// libnet80211.a. The main purpose is to be a fixed pointer that can be compared
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// against etc.
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const char *WIFI_EVENT = "WIFI_EVENT";
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// Required by libphy.a
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int phy_printf(const char *format, ...) {
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va_list args;
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va_start(args, format);
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printf("phy: ");
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int res = vprintf(format, args);
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va_end(args);
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return res;
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}
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// Required by libpp.a
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int pp_printf(const char *format, ...) {
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va_list args;
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va_start(args, format);
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printf("pp: ");
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int res = vprintf(format, args);
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va_end(args);
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return res;
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}
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// Required by libnet80211.a
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int net80211_printf(const char *format, ...) {
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va_list args;
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va_start(args, format);
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printf("net80211: ");
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int res = vprintf(format, args);
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va_end(args);
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return res;
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}
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// Source: esp-idf/components/wpa_supplicant/src/utils/common.c
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static int hex2num(char c)
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{
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if (c >= '0' && c <= '9')
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return c - '0';
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if (c >= 'a' && c <= 'f')
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return c - 'a' + 10;
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if (c >= 'A' && c <= 'F')
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return c - 'A' + 10;
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return -1;
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}
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// Source: esp-idf/components/wpa_supplicant/src/utils/common.c
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int hex2byte(const char *hex)
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{
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int a, b;
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a = hex2num(*hex++);
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if (a < 0)
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return -1;
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b = hex2num(*hex++);
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if (b < 0)
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return -1;
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return (a << 4) | b;
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}
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// Source: esp-idf/components/wpa_supplicant/src/utils/common.c
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/**
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* hexstr2bin - Convert ASCII hex string into binary data
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* @hex: ASCII hex string (e.g., "01ab")
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* @buf: Buffer for the binary data
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* @len: Length of the text to convert in bytes (of buf); hex will be double
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* this size
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* Returns: 0 on success, -1 on failure (invalid hex string)
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*/
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int hexstr2bin(const char *hex, uint8_t *buf, size_t len)
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{
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size_t i;
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int a;
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const char *ipos = hex;
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uint8_t *opos = buf;
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for (i = 0; i < len; i++) {
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a = hex2byte(ipos);
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if (a < 0)
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return -1;
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*opos++ = a;
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ipos += 2;
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}
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return 0;
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}
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