From 918a85d342aa608deac1650ddd0692dd1717c5e3 Mon Sep 17 00:00:00 2001
From: Joel Challis <git@zvecr.com>
Date: Fri, 6 Mar 2020 12:49:45 +0000
Subject: Refactor more backlight to a common location (#8292)

* Refactor more backlight to a common location

* BACKLIGHT_PIN not defined for custom backlight

* align function names
---
 quantum/backlight/backlight.c | 58 ++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 57 insertions(+), 1 deletion(-)

(limited to 'quantum/backlight/backlight.c')

diff --git a/quantum/backlight/backlight.c b/quantum/backlight/backlight.c
index 4aa74667d9..4a0eac64c6 100644
--- a/quantum/backlight/backlight.c
+++ b/quantum/backlight/backlight.c
@@ -15,14 +15,62 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
+#include "quantum.h"
 #include "backlight.h"
 #include "eeconfig.h"
 #include "debug.h"
 
 backlight_config_t backlight_config;
 
+#ifdef BACKLIGHT_BREATHING
 // TODO: migrate to backlight_config_t
 static uint8_t breathing_period = BREATHING_PERIOD;
+#endif
+
+#ifndef BACKLIGHT_CUSTOM_DRIVER
+#    if defined(BACKLIGHT_PINS)
+static const pin_t backlight_pins[] = BACKLIGHT_PINS;
+#        ifndef BACKLIGHT_LED_COUNT
+#            define BACKLIGHT_LED_COUNT (sizeof(backlight_pins) / sizeof(pin_t))
+#        endif
+
+#        define FOR_EACH_LED(x)                                 \
+            for (uint8_t i = 0; i < BACKLIGHT_LED_COUNT; i++) { \
+                pin_t backlight_pin = backlight_pins[i];        \
+                { x }                                           \
+            }
+#    else
+// we support only one backlight pin
+static const pin_t backlight_pin = BACKLIGHT_PIN;
+#        define FOR_EACH_LED(x) x
+#    endif
+
+static inline void backlight_on(pin_t backlight_pin) {
+#    if BACKLIGHT_ON_STATE == 0
+    writePinLow(backlight_pin);
+#    else
+    writePinHigh(backlight_pin);
+#    endif
+}
+
+static inline void backlight_off(pin_t backlight_pin) {
+#    if BACKLIGHT_ON_STATE == 0
+    writePinHigh(backlight_pin);
+#    else
+    writePinLow(backlight_pin);
+#    endif
+}
+
+void backlight_pins_init(void) {
+    // Setup backlight pin as output and output to off state.
+    FOR_EACH_LED(setPinOutput(backlight_pin); backlight_off(backlight_pin);)
+}
+
+void backlight_pins_on(void) { FOR_EACH_LED(backlight_on(backlight_pin);) }
+
+void backlight_pins_off(void) { FOR_EACH_LED(backlight_off(backlight_pin);) }
+
+#endif
 
 /** \brief Backlight initialization
  *
@@ -205,7 +253,6 @@ void backlight_disable_breathing(void) {
  * FIXME: needs doc
  */
 bool is_backlight_breathing(void) { return backlight_config.breathing; }
-#endif
 
 // following are marked as weak purely for backwards compatibility
 __attribute__((weak)) void breathing_period_set(uint8_t value) { breathing_period = value ? value : 1; }
@@ -218,6 +265,15 @@ __attribute__((weak)) void breathing_period_inc(void) { breathing_period_set(bre
 
 __attribute__((weak)) void breathing_period_dec(void) { breathing_period_set(breathing_period - 1); }
 
+__attribute__((weak)) void breathing_toggle(void) {
+    if (is_breathing())
+        breathing_disable();
+    else
+        breathing_enable();
+}
+
+#endif
+
 // defaults for backlight api
 __attribute__((weak)) void backlight_init_ports(void) {}
 
-- 
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