Add --wifisar

Signed-off-by: Daniel Schaefer <dhs@frame.work>

Author: JohnAZoidberg

EXAMPLES_ADVANCED.md

@@ -470,3 +470,47 @@ r12:         sp :00000000 lr :         pc :
 
 cfsr = 0, shcsr = 0, hfsr = 0, dfsr = 0
 ```
+
+
+## WiFi SAR
+
+```
+> framework_tool --wifisar
+WRDS - Wi-Fi SAR limits
+  Revision:             2 (4 chains, 11 sub-bands)
+  Mode:                 0x00000001 (SAR enabled)
+  Profile 1
+    Subband  Range (MHz)  ChainA         ChainB
+    2.4G     2400         0x80 16.0 dBm  0x80 16.0 dBm
+    5G2/3    5180-5320    0x70 14.0 dBm  0x70 14.0 dBm
+    5G4      5340-5480    0x70 14.0 dBm  0x70 14.0 dBm
+    5G6      5500-5720    0x74 14.5 dBm  0x74 14.5 dBm
+    5G8/9    5745-5885    0x6C 13.5 dBm  0x6C 13.5 dBm
+    6G1      5955-6175    0x6C 13.5 dBm  0x6C 13.5 dBm
+    6G3      6195-6415    0x6C 13.5 dBm  0x6C 13.5 dBm
+    6G5      6435-6515    0x6C 13.5 dBm  0x6C 13.5 dBm
+    6G6      6535-6695    0x6C 13.5 dBm  0x6C 13.5 dBm
+    6G8      6715-6855    0x6C 13.5 dBm  0x6C 13.5 dBm
+    7G0      6875-7115    0x6C 13.5 dBm  0x6C 13.5 dBm
+    All zero: CdbChainA, CdbChainB
+EWRD - Additional Wi-Fi SAR limits
+  Revision:             2 (4 chains, 11 sub-bands)
+  Mode:                 0x00000001 (SAR enabled)
+  Profiles in use:      1
+  Profile 2
+    Subband  Range (MHz)  ChainA         ChainB
+    2.4G     2400         0xA8 21.0 dBm  0xA8 21.0 dBm
+    5G2/3    5180-5320    0xA8 21.0 dBm  0xA8 21.0 dBm
+    5G4      5340-5480    0xA8 21.0 dBm  0xA8 21.0 dBm
+    5G6      5500-5720    0xAC 21.5 dBm  0xAC 21.5 dBm
+    5G8/9    5745-5885    0xAC 21.5 dBm  0xAC 21.5 dBm
+    6G1      5955-6175    0xAC 21.5 dBm  0xAC 21.5 dBm
+    6G3      6195-6415    0xAC 21.5 dBm  0xAC 21.5 dBm
+    6G5      6435-6515    0xA8 21.0 dBm  0xA8 21.0 dBm
+    6G6      6535-6695    0xA8 21.0 dBm  0xA8 21.0 dBm
+    6G8      6715-6855    0xA8 21.0 dBm  0xA8 21.0 dBm
+    7G0      6875-7115    0x70 14.0 dBm  0x70 14.0 dBm
+    All zero: CdbChainA, CdbChainB
+  Profile 3 (unused): All zero
+  Profile 4 (unused): All zero
+```

framework_lib/src/commandline/clap_std.rs

@@ -325,6 +325,10 @@ struct ClapCli {
     #[arg(long)]
     panicinfo: bool,
 
+    /// Show Wi-Fi SAR power limits from UEFI variables (WRDS, EWRD)
+    #[arg(long)]
+    wifisar: bool,
+
     /// Hash a file of arbitrary data
     #[arg(long)]
     hash: Option<std::path::PathBuf>,
@@ -719,6 +723,7 @@ pub fn parse(args: &[String]) -> Cli {
         switches: args.switches,
         port80read: args.port80read,
         panicinfo: args.panicinfo,
+        wifisar: args.wifisar,
         hash: args.hash.map(|x| x.into_os_string().into_string().unwrap()),
         driver: args.driver,
         pd_addrs,

framework_lib/src/commandline/mod.rs

@@ -71,6 +71,7 @@ use crate::touchscreen;
 #[cfg(feature = "rusb")]
 use crate::usbhub::check_usbhub_version;
 use crate::util::{self, Config, Platform, PlatformFamily};
+use crate::wifi_sar;
 use dmidecode::Structure;
 #[cfg(feature = "hidapi")]
 use hidapi::HidApi;
@@ -256,6 +257,7 @@ pub struct Cli {
     pub switches: bool,
     pub port80read: bool,
     pub panicinfo: bool,
+    pub wifisar: bool,
     pub hash: Option<String>,
     pub pd_addrs: Option<(u16, u16, u16)>,
     pub pd_ports: Option<(u8, u8, u8)>,
@@ -355,6 +357,7 @@ pub fn parse(args: &[String]) -> Cli {
             switches: cli.switches,
             port80read: cli.port80read,
             panicinfo: cli.panicinfo,
+            wifisar: cli.wifisar,
             hash: cli.hash,
             pd_addrs: cli.pd_addrs,
             pd_ports: cli.pd_ports,
@@ -1660,6 +1663,11 @@ pub fn run_with_args(args: &Cli, _allupdate: bool) -> i32 {
                 return 1;
             }
         }
+    } else if args.wifisar {
+        if wifi_sar::print_wifi_sar().is_none() {
+            println!("Failed to read Wi-Fi SAR limits");
+            return 1;
+        }
     } else if args.test {
         println!("Self-Test");
         let result = selftest(&ec);
@@ -2086,6 +2094,7 @@ Options:
       --switches             Show current EC switch positions (lid, power button, ...)
       --port80read           Show history of port 80 writes (POST codes)
       --panicinfo            Show saved EC panic info
+      --wifisar              Show Wi-Fi SAR power limits from UEFI variables (WRDS, EWRD)
       --intrusion            Show status of intrusion switch
       --inputdeck            Show status of the input deck
       --inputdeck-mode       Set input deck power mode [possible values: auto, off, on] (Laptop 12, 13, 16)

framework_lib/src/commandline/uefi.rs

@@ -99,6 +99,7 @@ pub fn parse(args: &[String]) -> Cli {
         switches: false,
         port80read: false,
         panicinfo: false,
+        wifisar: false,
         hash: None,
         // This is the only driver that works on UEFI
         driver: Some(CrosEcDriverType::Portio),
@@ -593,6 +594,9 @@ pub fn parse(args: &[String]) -> Cli {
         } else if arg == "--panicinfo" {
             cli.panicinfo = true;
             found_an_option = true;
+        } else if arg == "--wifisar" {
+            cli.wifisar = true;
+            found_an_option = true;
         } else if arg == "-t" || arg == "--test" {
             cli.test = true;
             found_an_option = true;

framework_lib/src/lib.rs

@@ -65,6 +65,7 @@ pub mod power;
 pub mod smart_battery;
 pub mod smbios;
 mod util;
+pub mod wifi_sar;
 
 pub mod built_info {
     // The file has been placed there by the build script.