2020 February 29 Breaking Changes Update (#8064)

5 files changed, 41 insertions, 73 deletions

diff --git a/tmk_core/common/action.c b/tmk_core/common/action.c
index d572b70564..0ec4a43eee 100644
--- a/tmk_core/common/action.c
+++ b/tmk_core/common/action.c
@@ -562,32 +562,6 @@ void process_action(keyrecord_t *record, action_t action) {
             action_macro_play(action_get_macro(record, action.func.id, action.func.opt));
             break;
 #endif
-#if defined(BACKLIGHT_ENABLE) || defined(LED_MATRIX_ENABLE)
-        case ACT_BACKLIGHT:
-            if (!event.pressed) {
-                switch (action.backlight.opt) {
-                    case BACKLIGHT_INCREASE:
-                        backlight_increase();
-                        break;
-                    case BACKLIGHT_DECREASE:
-                        backlight_decrease();
-                        break;
-                    case BACKLIGHT_TOGGLE:
-                        backlight_toggle();
-                        break;
-                    case BACKLIGHT_STEP:
-                        backlight_step();
-                        break;
-                    case BACKLIGHT_ON:
-                        backlight_level(BACKLIGHT_LEVELS);
-                        break;
-                    case BACKLIGHT_OFF:
-                        backlight_level(0);
-                        break;
-                }
-            }
-            break;
-#endif
         case ACT_COMMAND:
             break;
 #ifdef SWAP_HANDS_ENABLE
diff --git a/tmk_core/common/action_code.h b/tmk_core/common/action_code.h
index 03fcb3382b..6c005b76d1 100644
--- a/tmk_core/common/action_code.h
+++ b/tmk_core/common/action_code.h
@@ -86,8 +86,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
  * 1100|opt | id(8)      Macro play?
  * 1100|1111| id(8)      Macro record?
  *
- * ACT_BACKLIGHT(1101):
- * 1101|opt |level(8)    Backlight commands
+ * 1101|xxxx xxxx xxxx   (reserved)
  *
  * ACT_COMMAND(1110):
  * 1110|opt | id(8)      Built-in Command exec
@@ -115,10 +114,9 @@ enum action_kind_id {
     ACT_LAYER_TAP     = 0b1010, /* Layer  0-15 */
     ACT_LAYER_TAP_EXT = 0b1011, /* Layer 16-31 */
     /* Extensions */
-    ACT_MACRO     = 0b1100,
-    ACT_BACKLIGHT = 0b1101,
-    ACT_COMMAND   = 0b1110,
-    ACT_FUNCTION  = 0b1111
+    ACT_MACRO    = 0b1100,
+    ACT_COMMAND  = 0b1110,
+    ACT_FUNCTION = 0b1111
 };
 
 /** \brief Action Code Struct
@@ -169,11 +167,6 @@ typedef union {
         uint8_t  page : 2;
         uint8_t  kind : 4;
     } usage;
-    struct action_backlight {
-        uint8_t level : 8;
-        uint8_t opt : 4;
-        uint8_t kind : 4;
-    } backlight;
     struct action_command {
         uint8_t id : 8;
         uint8_t opt : 4;
@@ -290,28 +283,10 @@ enum layer_param_tap_op {
 #define ACTION_DEFAULT_LAYER_BIT_XOR(part, bits) ACTION_LAYER_BITOP(OP_BIT_XOR, (part), (bits), 0)
 #define ACTION_DEFAULT_LAYER_BIT_SET(part, bits) ACTION_LAYER_BITOP(OP_BIT_SET, (part), (bits), 0)
 
-/** \brief Extensions
- */
-enum backlight_opt {
-    BACKLIGHT_INCREASE = 0,
-    BACKLIGHT_DECREASE = 1,
-    BACKLIGHT_TOGGLE   = 2,
-    BACKLIGHT_STEP     = 3,
-    BACKLIGHT_ON       = 4,
-    BACKLIGHT_OFF      = 5,
-};
-
 /* Macro */
 #define ACTION_MACRO(id) ACTION(ACT_MACRO, (id))
 #define ACTION_MACRO_TAP(id) ACTION(ACT_MACRO, FUNC_TAP << 8 | (id))
 #define ACTION_MACRO_OPT(id, opt) ACTION(ACT_MACRO, (opt) << 8 | (id))
-/* Backlight */
-#define ACTION_BACKLIGHT_INCREASE() ACTION(ACT_BACKLIGHT, BACKLIGHT_INCREASE << 8)
-#define ACTION_BACKLIGHT_DECREASE() ACTION(ACT_BACKLIGHT, BACKLIGHT_DECREASE << 8)
-#define ACTION_BACKLIGHT_TOGGLE() ACTION(ACT_BACKLIGHT, BACKLIGHT_TOGGLE << 8)
-#define ACTION_BACKLIGHT_STEP() ACTION(ACT_BACKLIGHT, BACKLIGHT_STEP << 8)
-#define ACTION_BACKLIGHT_ON() ACTION(ACT_BACKLIGHT, BACKLIGHT_ON << 8)
-#define ACTION_BACKLIGHT_OFF() ACTION(ACT_BACKLIGHT, BACKLIGHT_OFF << 8)
 /* Command */
 #define ACTION_COMMAND(id, opt) ACTION(ACT_COMMAND, (opt) << 8 | (id))
 /* Function */
diff --git a/tmk_core/common/chibios/timer.c b/tmk_core/common/chibios/timer.c
index ed5cfe1b05..ac5a5af638 100644
--- a/tmk_core/common/chibios/timer.c
+++ b/tmk_core/common/chibios/timer.c
@@ -2,30 +2,44 @@
 
 #include "timer.h"
 
-static systime_t last_systime    = 0;
-static systime_t overflow        = 0;
-static uint32_t  current_time_ms = 0;
+static uint32_t reset_point = 0;
+#if CH_CFG_ST_RESOLUTION < 32
+static uint32_t last_systime = 0;
+static uint32_t overflow     = 0;
+#endif
 
 void timer_init(void) { timer_clear(); }
 
 void timer_clear(void) {
-    last_systime    = chVTGetSystemTime();
-    overflow        = 0;
-    current_time_ms = 0;
+    reset_point = (uint32_t)chVTGetSystemTime();
+#if CH_CFG_ST_RESOLUTION < 32
+    last_systime = reset_point;
+    overflow     = 0;
+#endif
 }
 
 uint16_t timer_read(void) { return (uint16_t)timer_read32(); }
 
 uint32_t timer_read32(void) {
-    // Note: We assume that the timer update is called at least once betweeen every wrap around of the system time
-    systime_t current_systime = chVTGetSystemTime();
-    systime_t elapsed         = current_systime - last_systime + overflow;
-    uint32_t  elapsed_ms      = ST2MS(elapsed);
-    current_time_ms += elapsed_ms;
-    overflow     = elapsed - MS2ST(elapsed_ms);
-    last_systime = current_systime;
-
-    return current_time_ms;
+    uint32_t systime = (uint32_t)chVTGetSystemTime();
+
+#if CH_CFG_ST_RESOLUTION < 32
+    // If/when we need to support 64-bit chips, this may need to be modified to match the native bit-ness of the MCU.
+    // At this point, the only SysTick resolution allowed other than 32 is 16 bit.
+    // In the 16-bit case, at:
+    //    - CH_CFG_ST_FREQUENCY = 100000, overflow will occur every ~0.65 seconds
+    //    - CH_CFG_ST_FREQUENCY = 10000, overflow will occur every ~6.5 seconds
+    //    - CH_CFG_ST_FREQUENCY = 1000, overflow will occur every ~65 seconds
+    // With this implementation, as long as we ensure a timer read happens at least once during the overflow period, timing should be accurate.
+    if (systime < last_systime) {
+        overflow += ((uint32_t)1) << CH_CFG_ST_RESOLUTION;
+    }
+
+    last_systime = systime;
+    return (uint32_t)TIME_I2MS(systime - reset_point + overflow);
+#else
+    return (uint32_t)TIME_I2MS(systime - reset_point);
+#endif
 }
 
 uint16_t timer_elapsed(uint16_t last) { return TIMER_DIFF_16(timer_read(), last); }
diff --git a/tmk_core/common/command.c b/tmk_core/common/command.c
index 900de54103..77a205eac4 100644
--- a/tmk_core/common/command.c
+++ b/tmk_core/common/command.c
@@ -153,6 +153,9 @@ static void print_version(void) {
     print("BUILD:  (" __DATE__ ")\n");
 #else
     print("BUILD: " STR(QMK_VERSION) " (" __TIME__ " " __DATE__ ")\n");
+#    ifdef PROTOCOL_CHIBIOS
+    print("CHIBIOS: " STR(CHIBIOS_VERSION) ", CONTRIB: " STR(CHIBIOS_CONTRIB_VERSION) "\n");
+#    endif
 #endif
 
     /* build options */
@@ -182,6 +185,9 @@ static void print_version(void) {
 #ifdef NKRO_ENABLE
           " NKRO"
 #endif
+#ifdef LINK_TIME_OPTIMIZATION_ENABLE
+          " LTO"
+#endif
 
           " " STR(BOOTLOADER_SIZE) "\n");
 
diff --git a/tmk_core/common/timer.h b/tmk_core/common/timer.h
index 378cf7892c..bbaae109d0 100644
--- a/tmk_core/common/timer.h
+++ b/tmk_core/common/timer.h
@@ -45,9 +45,8 @@ uint16_t timer_elapsed(uint16_t last);
 uint32_t timer_elapsed32(uint32_t last);
 
 // Utility functions to check if a future time has expired & autmatically handle time wrapping if checked / reset frequently (half of max value)
-inline bool timer_expired(uint16_t current, uint16_t future) { return (uint16_t)(current - future) < 0x8000; }
-
-inline bool timer_expired32(uint32_t current, uint32_t future) { return (uint32_t)(current - future) < 0x80000000; }
+#define timer_expired(current, future) (((uint16_t)current - (uint16_t)future) < 0x8000)
+#define timer_expired32(current, future) (((uint32_t)current - (uint32_t)future) < 0x80000000)
 
 #ifdef __cplusplus
 }