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net: wifi_mgmt: make number of scan channels configurable

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Make the maximum number of channels that can be manually scanned
configurable by the application. The previous value of 233 was vastly
overallocating memory as the largest band only contains 60 allocated
channels.

Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
This commit is contained in:
Jordan Yates 2023-09-16 15:47:17 +10:00 • committed by Carles Cufí
commit 6a428f19b6
2 changed files with 15 additions and 1 deletions
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8
include/zephyr/net/wifi_mgmt.h
View file

@ -41,6 +41,12 @@ extern "C" {
#define WIFI_MGMT_SCAN_SSID_FILT_MAX 1
#endif /* CONFIG_WIFI_MGMT_SCAN_SSID_FILT_MAX */
#ifdef CONFIG_WIFI_MGMT_SCAN_CHAN_MAX_MANUAL
#define WIFI_MGMT_SCAN_CHAN_MAX_MANUAL CONFIG_WIFI_MGMT_SCAN_CHAN_MAX_MANUAL
#else
#define WIFI_MGMT_SCAN_CHAN_MAX_MANUAL 1
#endif /* CONFIG_WIFI_MGMT_SCAN_CHAN_MAX_MANUAL */
#define WIFI_MGMT_BAND_STR_SIZE_MAX 8
/** Wi-Fi management commands */
@ -252,7 +258,7 @@ struct wifi_scan_params {
* not conforming to regulatory restrictions etc. The invoker of the API should
* ensure that the channels specified follow regulatory rules.
*/
uint8_t chan[WIFI_FREQ_BAND_MAX + 1][WIFI_CHANNEL_MAX];
uint8_t chan[WIFI_FREQ_BAND_MAX + 1][WIFI_MGMT_SCAN_CHAN_MAX_MANUAL];
};
/** Wi-Fi scan result, each result is provided to the net_mgmt_event_callback

8
subsys/net/l2/wifi/Kconfig
View file

@ -47,6 +47,14 @@ config WIFI_MGMT_SCAN_SSID_FILT_MAX
Maximum number of SSIDs that can be specified for SSID filtering.
This can be set based on the underlying chipsets limitations.
config WIFI_MGMT_SCAN_CHAN_MAX_MANUAL
int "Maximum number of channels that can be manually specified per-band"
range 1 70
default 3
help
There are currently 60 channels allocated in the largest band (6GHz).
The default of 3 allows the 3 most common channels (2.4GHz: 1, 6, 11) to be specified.
config WIFI_NM
bool "Wi-Fi Network manager support"
help