From e56f06384150e0e3ce723c0bc296af017ae8124d Mon Sep 17 00:00:00 2001
From: whowechina <whowechina@gmail.com>
Date: Tue, 17 Sep 2024 20:33:30 +0800
Subject: [PATCH] Minor optimizations

---
 firmware/src/commands.c | 8 ++++----
 firmware/src/touch.c    | 3 ++-
 firmware/src/touch.h    | 2 +-
 3 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/firmware/src/commands.c b/firmware/src/commands.c
index a1a743a..8f05b5c 100644
--- a/firmware/src/commands.c
+++ b/firmware/src/commands.c
@@ -395,11 +395,11 @@ static void handle_debounce(int argc, char *argv[])
     disp_sense();
 }
 
-static void print_readings(const char *title, const uint16_t *raw, int num)
+static void print_readings(const char *title, const uint16_t *readings, int num)
 {
     printf(" %s |", title);
     for (int i = 0; i < num; i++) {
-        printf(" %4d |", raw[i]);
+        printf(" %4d |", readings[i]);
     }
     printf("\n");
 }
@@ -416,13 +416,13 @@ static void handle_raw()
             touch_sensor_ok(1) ? "OK" : "ERR",
             touch_sensor_ok(2) ? "OK" : "ERR");
     
-    printf("   Sensor readings:\n");
+    printf("   By Sensor:\n");
     printf("   |___1__|___2__|___3__|___4__|___5__|___6__|___7__|___8__|___9__|__10__|__11__|__12__|\n");
     print_readings("0", raw, 12);
     print_readings("1", raw + 12, 12);
     print_readings("2", raw + 24, 12);
 
-    printf("   Zone readings:\n");
+    printf("   By Zone:\n");
     printf("   |___1__|___2__|___3__|___4__|___5__|___6__|___7__|___8__|\n");
     print_readings("A", zones, 8);
     print_readings("B", zones + 8, 8);
diff --git a/firmware/src/touch.c b/firmware/src/touch.c
index 707d801..f4ee64c 100644
--- a/firmware/src/touch.c
+++ b/firmware/src/touch.c
@@ -167,7 +167,8 @@ const uint16_t *touch_raw()
     return readout;
 }
 
-const uint16_t *map_raw_to_zones(uint16_t* raw) {
+const uint16_t *map_raw_to_zones(const uint16_t* raw)
+{
     static uint16_t zones[36];
 
     for (int i = 0; i < 34; i++) {
diff --git a/firmware/src/touch.h b/firmware/src/touch.h
index ab7f5eb..9ef46a1 100644
--- a/firmware/src/touch.h
+++ b/firmware/src/touch.h
@@ -29,7 +29,7 @@ uint64_t touch_touchmap();
 void touch_set_map(unsigned sensor, unsigned key);
 
 const uint16_t *touch_raw();
-const uint16_t *map_raw_to_zones(uint16_t *raw);
+const uint16_t *map_raw_to_zones(const uint16_t *raw);
 bool touch_sensor_ok(unsigned i);
 
 void touch_update_config();