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kconfig: Remove Wi-Fi on/off as a menuconfig option

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This is no longer required since the functions automatically get
pulled in based on the usage. A quick summary of footprint
comparisions before and after these set of patches is shown below:

Hello-World: (simplified for readability)
 old Total image size:~ 104902 bytes (.bin may be padded larger)
 old Total image size:~ 105254 bytes (.bin may be padded larger)
 Per-archive contributions to ELF file:
             Archive File DRAM .data & .bss   IRAM Flash code & rodata   Total
 old              libesp32.a       1973    177   4445       3939     2267   12801
 new              libesp32.a       1973    185   4473       3939     2267   12837

 new             libnvs_flash.a          0     92      0        274        8     374
 new             libstdc++.a          0      0      0         24        0      24

For some reason, nvs_flash.a (~400bytes) gets pulled in (particularly
the nvs_flash_init() function).

Power-Save: (simplified for readability)
 old Total image size:~ 421347 bytes (.bin may be padded larger)
 old Total image size:~ 421235 bytes (.bin may be padded larger)

 old      libtcpip_adapter.a          0     81      0       1947      115       2143
 new      libtcpip_adapter.a          0     69      0       1897      115       2081

The size actually shrinks a bit, since the AP interface function
doesn't get pulled in.
This commit is contained in:
Kedar Sovani
2017-08-08 10:23:52 +05:30
parent a24130b390
commit ba8cd58b08
5 changed files with 7 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
components/esp32/include/esp_wifi.h
View File

@@ -144,7 +144,7 @@ typedef struct {
extern const wpa_crypto_funcs_t g_wifi_default_wpa_crypto_funcs;
#define WIFI_INIT_CONFIG_MAGIC 0x1F2F3F4F
#ifdef CONFIG_WIFI_ENABLED
#define WIFI_INIT_CONFIG_DEFAULT() { \
.event_handler = &esp_event_send, \
.wpa_crypto_funcs = g_wifi_default_wpa_crypto_funcs, \
@@ -160,9 +160,6 @@ extern const wpa_crypto_funcs_t g_wifi_default_wpa_crypto_funcs;
.rx_ba_win = CONFIG_ESP32_WIFI_RX_BA_WIN,\
.magic = WIFI_INIT_CONFIG_MAGIC\
};
#else
#define WIFI_INIT_CONFIG_DEFAULT() {0}; _Static_assert(0, "please enable wifi in menuconfig to use esp_wifi.h");
#endif
/**
* @brief Init WiFi