16 files changed, 215 insertions, 257 deletions

diff --git a/tmk_core/common/arm_atsam/eeprom.c b/tmk_core/common/arm_atsam/eeprom.c
index ccd5d15a5..ff1a69262 100644
--- a/tmk_core/common/arm_atsam/eeprom.c
+++ b/tmk_core/common/arm_atsam/eeprom.c
@@ -13,24 +13,110 @@
  * 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 "eeprom.h"
+#include "debug.h"
+#include "samd51j18a.h"
+#include "core_cm4.h"
+#include "component/nvmctrl.h"
 
 #ifndef EEPROM_SIZE
 #    include "eeconfig.h"
 #    define EEPROM_SIZE (((EECONFIG_SIZE + 3) / 4) * 4)  // based off eeconfig's current usage, aligned to 4-byte sizes, to deal with LTO
 #endif
 
-__attribute__((aligned(4))) static uint8_t buffer[EEPROM_SIZE];
+#ifndef MAX
+#    define MAX(X, Y) ((X) > (Y) ? (X) : (Y))
+#endif
+
+#ifndef BUSY_RETRIES
+#    define BUSY_RETRIES 10000
+#endif
+
+// #define DEBUG_EEPROM_OUTPUT
+
+/*
+ * Debug print utils
+ */
+#if defined(DEBUG_EEPROM_OUTPUT)
+#    define eeprom_printf(fmt, ...) xprintf(fmt, ##__VA_ARGS__);
+#else /* NO_DEBUG */
+#    define eeprom_printf(fmt, ...)
+#endif /* NO_DEBUG */
+
+__attribute__((aligned(4))) static uint8_t buffer[EEPROM_SIZE] = {0};
+volatile uint8_t *                         SmartEEPROM8        = (uint8_t *)SEEPROM_ADDR;
+
+static inline bool eeprom_is_busy(void) {
+    int timeout = BUSY_RETRIES;
+    while (NVMCTRL->SEESTAT.bit.BUSY && timeout-- > 0)
+        ;
+
+    return NVMCTRL->SEESTAT.bit.BUSY;
+}
+
+static uint32_t get_virtual_eeprom_size(void) {
+    // clang-format off
+    static const uint32_t VIRTUAL_EEPROM_MAP[11][8] = {
+    /*          4    8    16    32    64    128    256    512 */
+    /* 0*/ {   0,    0,    0,    0,    0,     0,     0,     0 },
+    /* 1*/ { 512, 1024, 2048, 4096, 4096,  4096,  4096,  4096 },
+    /* 2*/ { 512, 1024, 2048, 4096, 8192,  8192,  8192,  8192 },
+    /* 3*/ { 512, 1024, 2048, 4096, 8192, 16384, 16384, 16384 },
+    /* 4*/ { 512, 1024, 2048, 4096, 8192, 16384, 16384, 16384 },
+    /* 5*/ { 512, 1024, 2048, 4096, 8192, 16384, 32768, 32768 },
+    /* 6*/ { 512, 1024, 2048, 4096, 8192, 16384, 32768, 32768 },
+    /* 7*/ { 512, 1024, 2048, 4096, 8192, 16384, 32768, 32768 },
+    /* 8*/ { 512, 1024, 2048, 4096, 8192, 16384, 32768, 32768 },
+    /* 9*/ { 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536 },
+    /*10*/ { 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536 },
+    };
+    // clang-format on
+
+    static uint32_t virtual_eeprom_size = UINT32_MAX;
+    if (virtual_eeprom_size == UINT32_MAX) {
+        virtual_eeprom_size = VIRTUAL_EEPROM_MAP[NVMCTRL->SEESTAT.bit.PSZ][NVMCTRL->SEESTAT.bit.SBLK];
+    }
+    // eeprom_printf("get_virtual_eeprom_size:: %d:%d:%d\n", NVMCTRL->SEESTAT.bit.PSZ, NVMCTRL->SEESTAT.bit.SBLK, virtual_eeprom_size);
+    return virtual_eeprom_size;
+}
 
 uint8_t eeprom_read_byte(const uint8_t *addr) {
     uintptr_t offset = (uintptr_t)addr;
-    return buffer[offset];
+    if (offset >= MAX(EEPROM_SIZE, get_virtual_eeprom_size())) {
+        eeprom_printf("eeprom_read_byte:: out of bounds\n");
+        return 0x0;
+    }
+
+    if (get_virtual_eeprom_size() == 0) {
+        return buffer[offset];
+    }
+
+    if (eeprom_is_busy()) {
+        eeprom_printf("eeprom_write_byte:: timeout\n");
+        return 0x0;
+    }
+
+    return SmartEEPROM8[offset];
 }
 
 void eeprom_write_byte(uint8_t *addr, uint8_t value) {
     uintptr_t offset = (uintptr_t)addr;
-    buffer[offset]   = value;
+    if (offset >= MAX(EEPROM_SIZE, get_virtual_eeprom_size())) {
+        eeprom_printf("eeprom_write_byte:: out of bounds\n");
+        return;
+    }
+
+    if (get_virtual_eeprom_size() == 0) {
+        buffer[offset] = value;
+        return;
+    }
+
+    if (eeprom_is_busy()) {
+        eeprom_printf("eeprom_write_byte:: timeout\n");
+        return;
+    }
+
+    SmartEEPROM8[offset] = value;
 }
 
 uint16_t eeprom_read_word(const uint16_t *addr) {
diff --git a/tmk_core/common/avr/suspend.c b/tmk_core/common/avr/suspend.c
index 690d7f38c..b614746e6 100644
--- a/tmk_core/common/avr/suspend.c
+++ b/tmk_core/common/avr/suspend.c
@@ -16,25 +16,6 @@
 #    include "vusb.h"
 #endif
 
-#ifdef BACKLIGHT_ENABLE
-#    include "backlight.h"
-#endif
-
-#ifdef AUDIO_ENABLE
-#    include "audio.h"
-#endif /* AUDIO_ENABLE */
-
-#if defined(RGBLIGHT_SLEEP) && defined(RGBLIGHT_ENABLE)
-#    include "rgblight.h"
-#endif
-
-#ifdef LED_MATRIX_ENABLE
-#    include "led_matrix.h"
-#endif
-#ifdef RGB_MATRIX_ENABLE
-#    include "rgb_matrix.h"
-#endif
-
 /** \brief Suspend idle
  *
  * FIXME: needs doc
@@ -50,17 +31,6 @@ void suspend_idle(uint8_t time) {
 
 // TODO: This needs some cleanup
 
-/** \brief Run keyboard level Power down
- *
- * FIXME: needs doc
- */
-__attribute__((weak)) void suspend_power_down_user(void) {}
-/** \brief Run keyboard level Power down
- *
- * FIXME: needs doc
- */
-__attribute__((weak)) void suspend_power_down_kb(void) { suspend_power_down_user(); }
-
 #if !defined(NO_SUSPEND_POWER_DOWN) && defined(WDT_vect)
 
 // clang-format off
@@ -135,41 +105,9 @@ void suspend_power_down(void) {
     if (!vusb_suspended) return;
 #endif
 
-    suspend_power_down_kb();
+    suspend_power_down_quantum();
 
 #ifndef NO_SUSPEND_POWER_DOWN
-    // Turn off backlight
-#    ifdef BACKLIGHT_ENABLE
-    backlight_set(0);
-#    endif
-
-    // Turn off LED indicators
-    uint8_t leds_off = 0;
-#    if defined(BACKLIGHT_CAPS_LOCK) && defined(BACKLIGHT_ENABLE)
-    if (is_backlight_enabled()) {
-        // Don't try to turn off Caps Lock indicator as it is backlight and backlight is already off
-        leds_off |= (1 << USB_LED_CAPS_LOCK);
-    }
-#    endif
-    led_set(leds_off);
-
-    // Turn off audio
-#    ifdef AUDIO_ENABLE
-    stop_all_notes();
-#    endif
-
-    // Turn off underglow
-#    if defined(RGBLIGHT_SLEEP) && defined(RGBLIGHT_ENABLE)
-    rgblight_suspend();
-#    endif
-
-#    if defined(LED_MATRIX_ENABLE)
-    led_matrix_set_suspend_state(true);
-#    endif
-#    if defined(RGB_MATRIX_ENABLE)
-    rgb_matrix_set_suspend_state(true);
-#    endif
-
     // Enter sleep state if possible (ie, the MCU has a watchdog timeout interrupt)
 #    if defined(WDT_vect)
     power_down(WDTO_15MS);
@@ -189,18 +127,6 @@ bool                       suspend_wakeup_condition(void) {
     return false;
 }
 
-/** \brief run user level code immediately after wakeup
- *
- * FIXME: needs doc
- */
-__attribute__((weak)) void suspend_wakeup_init_user(void) {}
-
-/** \brief run keyboard level code immediately after wakeup
- *
- * FIXME: needs doc
- */
-__attribute__((weak)) void suspend_wakeup_init_kb(void) { suspend_wakeup_init_user(); }
-
 /** \brief run immediately after wakeup
  *
  * FIXME: needs doc
@@ -209,27 +135,7 @@ void suspend_wakeup_init(void) {
     // clear keyboard state
     clear_keyboard();
 
-    // Turn on backlight
-#ifdef BACKLIGHT_ENABLE
-    backlight_init();
-#endif
-
-    // Restore LED indicators
-    led_set(host_keyboard_leds());
-
-    // Wake up underglow
-#if defined(RGBLIGHT_SLEEP) && defined(RGBLIGHT_ENABLE)
-    rgblight_wakeup();
-#endif
-
-#if defined(LED_MATRIX_ENABLE)
-    led_matrix_set_suspend_state(false);
-#endif
-#if defined(RGB_MATRIX_ENABLE)
-    rgb_matrix_set_suspend_state(false);
-#endif
-
-    suspend_wakeup_init_kb();
+    suspend_wakeup_init_quantum();
 }
 
 #if !defined(NO_SUSPEND_POWER_DOWN) && defined(WDT_vect)
diff --git a/tmk_core/common/chibios/_wait.h b/tmk_core/common/chibios/_wait.h
index b740afbd2..2f36c64a2 100644
--- a/tmk_core/common/chibios/_wait.h
+++ b/tmk_core/common/chibios/_wait.h
@@ -43,8 +43,6 @@ void wait_us(uint16_t duration);
 
 #include "_wait.c"
 
-#define CPU_CLOCK STM32_SYSCLK
-
 /* For GPIOs on ARM-based MCUs, the input pins are sampled by the clock of the bus
  * to which the GPIO is connected.
  * The connected buses differ depending on the various series of MCUs.
diff --git a/tmk_core/common/chibios/chibios_config.h b/tmk_core/common/chibios/chibios_config.h
index 23c65f942..c35f58955 100644
--- a/tmk_core/common/chibios/chibios_config.h
+++ b/tmk_core/common/chibios/chibios_config.h
@@ -19,22 +19,33 @@
 #    define SPLIT_USB_DETECT  // Force this on when dedicated pin is not used
 #endif
 
-#if defined(STM32F1XX)
-#    define USE_GPIOV1
-#endif
+// STM32 compatibility
+#if defined(MCU_STM32)
+#    define CPU_CLOCK STM32_SYSCLK
 
-#if defined(STM32F1XX) || defined(STM32F2XX) || defined(STM32F4XX) || defined(STM32L1XX)
-#    define USE_I2CV1
-#endif
+#    if defined(STM32F1XX)
+#        define USE_GPIOV1
+#        define PAL_MODE_ALTERNATE_OPENDRAIN PAL_MODE_STM32_ALTERNATE_OPENDRAIN
+#        define PAL_MODE_ALTERNATE_PUSHPULL PAL_MODE_STM32_ALTERNATE_PUSHPULL
+#    else
+#        define PAL_OUTPUT_TYPE_OPENDRAIN PAL_STM32_OTYPE_OPENDRAIN
+#        define PAL_OUTPUT_TYPE_PUSHPULL PAL_STM32_OTYPE_PUSHPULL
+#        define PAL_OUTPUT_SPEED_HIGHEST PAL_STM32_OSPEED_HIGHEST
+#        define PAL_PUPDR_FLOATING PAL_STM32_PUPDR_FLOATING
+#    endif
 
-// teensy
-#if defined(K20x) || defined(KL2x)
-#    define USE_I2CV1
-#    define USE_I2CV1_CONTRIB  // for some reason a bunch of ChibiOS-Contrib boards only have clock_speed
-#    define USE_GPIOV1
-#    define STM32_SYSCLK KINETIS_SYSCLK_FREQUENCY
+#    if defined(STM32F1XX) || defined(STM32F2XX) || defined(STM32F4XX) || defined(STM32L1XX)
+#        define USE_I2CV1
+#    endif
 #endif
 
-#if defined(MK66F18)
-#    define STM32_SYSCLK KINETIS_SYSCLK_FREQUENCY
-#endif
+// teensy compatibility
+#if defined(MCU_KINETIS)
+#    define CPU_CLOCK KINETIS_SYSCLK_FREQUENCY
+
+#    if defined(K20x) || defined(KL2x)
+#        define USE_I2CV1
+#        define USE_I2CV1_CONTRIB  // for some reason a bunch of ChibiOS-Contrib boards only have clock_speed
+#        define USE_GPIOV1
+#    endif
+#endif
\ No newline at end of file
diff --git a/tmk_core/common/chibios/eeprom_stm32.c b/tmk_core/common/chibios/eeprom_stm32.c
index 1fdf8c1e2..acc6a4851 100644
--- a/tmk_core/common/chibios/eeprom_stm32.c
+++ b/tmk_core/common/chibios/eeprom_stm32.c
@@ -620,48 +620,11 @@ uint16_t EEPROM_ReadDataWord(uint16_t Address) {
 }
 
 /*****************************************************************************
- *  Wrap library in AVR style functions.
+ *  Bind to eeprom_driver.c
  *******************************************************************************/
-uint8_t eeprom_read_byte(const uint8_t *Address) { return EEPROM_ReadDataByte((const uintptr_t)Address); }
+void eeprom_driver_init(void) { EEPROM_Init(); }
 
-void eeprom_write_byte(uint8_t *Address, uint8_t Value) { EEPROM_WriteDataByte((uintptr_t)Address, Value); }
-
-void eeprom_update_byte(uint8_t *Address, uint8_t Value) { EEPROM_WriteDataByte((uintptr_t)Address, Value); }
-
-uint16_t eeprom_read_word(const uint16_t *Address) { return EEPROM_ReadDataWord((const uintptr_t)Address); }
-
-void eeprom_write_word(uint16_t *Address, uint16_t Value) { EEPROM_WriteDataWord((uintptr_t)Address, Value); }
-
-void eeprom_update_word(uint16_t *Address, uint16_t Value) { EEPROM_WriteDataWord((uintptr_t)Address, Value); }
-
-uint32_t eeprom_read_dword(const uint32_t *Address) {
-    const uint16_t p = (const uintptr_t)Address;
-    /* Check word alignment */
-    if (p % 2) {
-        /* Not aligned */
-        return (uint32_t)EEPROM_ReadDataByte(p) | (uint32_t)(EEPROM_ReadDataWord(p + 1) << 8) | (uint32_t)(EEPROM_ReadDataByte(p + 3) << 24);
-    } else {
-        /* Aligned */
-        return EEPROM_ReadDataWord(p) | (EEPROM_ReadDataWord(p + 2) << 16);
-    }
-}
-
-void eeprom_write_dword(uint32_t *Address, uint32_t Value) {
-    uint16_t p = (const uintptr_t)Address;
-    /* Check word alignment */
-    if (p % 2) {
-        /* Not aligned */
-        EEPROM_WriteDataByte(p, (uint8_t)Value);
-        EEPROM_WriteDataWord(p + 1, (uint16_t)(Value >> 8));
-        EEPROM_WriteDataByte(p + 3, (uint8_t)(Value >> 24));
-    } else {
-        /* Aligned */
-        EEPROM_WriteDataWord(p, (uint16_t)Value);
-        EEPROM_WriteDataWord(p + 2, (uint16_t)(Value >> 16));
-    }
-}
-
-void eeprom_update_dword(uint32_t *Address, uint32_t Value) { eeprom_write_dword(Address, Value); }
+void eeprom_driver_erase(void) { EEPROM_Erase(); }
 
 void eeprom_read_block(void *buf, const void *addr, size_t len) {
     const uint8_t *src  = (const uint8_t *)addr;
@@ -670,14 +633,14 @@ void eeprom_read_block(void *buf, const void *addr, size_t len) {
     /* Check word alignment */
     if (len && (uintptr_t)src % 2) {
         /* Read the unaligned first byte */
-        *dest++ = eeprom_read_byte(src++);
+        *dest++ = EEPROM_ReadDataByte((const uintptr_t)src++);
         --len;
     }
 
     uint16_t value;
     bool     aligned = ((uintptr_t)dest % 2 == 0);
     while (len > 1) {
-        value = eeprom_read_word((uint16_t *)src);
+        value = EEPROM_ReadDataWord((const uintptr_t)((uint16_t *)src));
         if (aligned) {
             *(uint16_t *)dest = value;
             dest += 2;
@@ -689,7 +652,7 @@ void eeprom_read_block(void *buf, const void *addr, size_t len) {
         len -= 2;
     }
     if (len) {
-        *dest = eeprom_read_byte(src);
+        *dest = EEPROM_ReadDataByte((const uintptr_t)src);
     }
 }
 
@@ -700,7 +663,7 @@ void eeprom_write_block(const void *buf, void *addr, size_t len) {
     /* Check word alignment */
     if (len && (uintptr_t)dest % 2) {
         /* Write the unaligned first byte */
-        eeprom_write_byte(dest++, *src++);
+        EEPROM_WriteDataByte((uintptr_t)dest++, *src++);
         --len;
     }
 
@@ -712,15 +675,13 @@ void eeprom_write_block(const void *buf, void *addr, size_t len) {
         } else {
             value = *(uint8_t *)src | (*(uint8_t *)(src + 1) << 8);
         }
-        eeprom_write_word((uint16_t *)dest, value);
+        EEPROM_WriteDataWord((uintptr_t)((uint16_t *)dest), value);
         dest += 2;
         src += 2;
         len -= 2;
     }
 
     if (len) {
-        eeprom_write_byte(dest, *src);
+        EEPROM_WriteDataByte((uintptr_t)dest, *src);
     }
 }
-
-void eeprom_update_block(const void *buf, void *addr, size_t len) { eeprom_write_block(buf, addr, len); }
diff --git a/tmk_core/common/chibios/eeprom_stm32_defs.h b/tmk_core/common/chibios/eeprom_stm32_defs.h
index 22b4ab858..cc64cda74 100644
--- a/tmk_core/common/chibios/eeprom_stm32_defs.h
+++ b/tmk_core/common/chibios/eeprom_stm32_defs.h
@@ -32,6 +32,13 @@
 #        ifndef FEE_PAGE_COUNT
 #            define FEE_PAGE_COUNT 4  // How many pages are used
 #        endif
+#    elif defined(STM32F401xC) || defined(STM32F405xG) || defined(STM32F411xE)
+#        ifndef FEE_PAGE_SIZE
+#            define FEE_PAGE_SIZE 0x4000  // Page size = 16KByte
+#        endif
+#        ifndef FEE_PAGE_COUNT
+#            define FEE_PAGE_COUNT 1  // How many pages are used
+#        endif
 #    endif
 #endif
 
@@ -40,17 +47,21 @@
 #        define FEE_MCU_FLASH_SIZE 32  // Size in Kb
 #    elif defined(STM32F103xB) || defined(STM32F072xB) || defined(STM32F070xB)
 #        define FEE_MCU_FLASH_SIZE 128  // Size in Kb
-#    elif defined(STM32F303xC)
+#    elif defined(STM32F303xC) || defined(STM32F401xC)
 #        define FEE_MCU_FLASH_SIZE 256  // Size in Kb
-#    elif defined(STM32F103xE)
+#    elif defined(STM32F103xE) || defined(STM32F411xE)
 #        define FEE_MCU_FLASH_SIZE 512  // Size in Kb
+#    elif defined(STM32F405xG)
+#        define FEE_MCU_FLASH_SIZE 1024  // Size in Kb
 #    endif
 #endif
 
 /* Start of the emulated eeprom */
 #if !defined(FEE_PAGE_BASE_ADDRESS)
-#    if 0
-/* TODO: Add support for F4 */
+#    if defined(STM32F401xC) || defined(STM32F405xG) || defined(STM32F411xE)
+#        ifndef FEE_PAGE_BASE_ADDRESS
+#            define FEE_PAGE_BASE_ADDRESS 0x08004000  // bodge to force 2nd 16k page
+#        endif
 #    else
 #        ifndef FEE_FLASH_BASE
 #            define FEE_FLASH_BASE 0x8000000
diff --git a/tmk_core/common/chibios/flash_stm32.c b/tmk_core/common/chibios/flash_stm32.c
index 6b80ff71c..8f10903d3 100644
--- a/tmk_core/common/chibios/flash_stm32.c
+++ b/tmk_core/common/chibios/flash_stm32.c
@@ -23,6 +23,29 @@
 #    define FLASH_SR_WRPERR FLASH_SR_WRPRTERR
 #endif
 
+#if defined(EEPROM_EMU_STM32F401xC)
+#    define FLASH_SR_PGERR (FLASH_SR_PGSERR | FLASH_SR_PGPERR | FLASH_SR_PGAERR)
+
+#    define FLASH_KEY1 0x45670123U
+#    define FLASH_KEY2 0xCDEF89ABU
+
+static uint8_t ADDR2PAGE(uint32_t Page_Address) {
+    switch (Page_Address) {
+        case 0x08000000 ... 0x08003FFF:
+            return 0;
+        case 0x08004000 ... 0x08007FFF:
+            return 1;
+        case 0x08008000 ... 0x0800BFFF:
+            return 2;
+        case 0x0800C000 ... 0x0800FFFF:
+            return 3;
+    }
+
+    // TODO: bad times...
+    return 7;
+}
+#endif
+
 /* Delay definition */
 #define EraseTimeout ((uint32_t)0x00000FFF)
 #define ProgramTimeout ((uint32_t)0x0000001F)
@@ -53,7 +76,9 @@ FLASH_Status FLASH_GetStatus(void) {
 
     if ((FLASH->SR & FLASH_SR_WRPERR) != 0) return FLASH_ERROR_WRP;
 
+#if defined(FLASH_OBR_OPTERR)
     if ((FLASH->SR & FLASH_OBR_OPTERR) != 0) return FLASH_ERROR_OPT;
+#endif
 
     return FLASH_COMPLETE;
 }
@@ -95,15 +120,24 @@ FLASH_Status FLASH_ErasePage(uint32_t Page_Address) {
 
     if (status == FLASH_COMPLETE) {
         /* if the previous operation is completed, proceed to erase the page */
+#if defined(FLASH_CR_SNB)
+        FLASH->CR &= ~FLASH_CR_SNB;
+        FLASH->CR |= FLASH_CR_SER | (ADDR2PAGE(Page_Address) << FLASH_CR_SNB_Pos);
+#else
         FLASH->CR |= FLASH_CR_PER;
         FLASH->AR = Page_Address;
+#endif
         FLASH->CR |= FLASH_CR_STRT;
 
         /* Wait for last operation to be completed */
         status = FLASH_WaitForLastOperation(EraseTimeout);
         if (status != FLASH_TIMEOUT) {
-            /* if the erase operation is completed, disable the PER Bit */
+            /* if the erase operation is completed, disable the configured Bits */
+#if defined(FLASH_CR_SNB)
+            FLASH->CR &= ~(FLASH_CR_SER | FLASH_CR_SNB);
+#else
             FLASH->CR &= ~FLASH_CR_PER;
+#endif
         }
         FLASH->SR = (FLASH_SR_EOP | FLASH_SR_PGERR | FLASH_SR_WRPERR);
     }
@@ -126,6 +160,11 @@ FLASH_Status FLASH_ProgramHalfWord(uint32_t Address, uint16_t Data) {
         status = FLASH_WaitForLastOperation(ProgramTimeout);
         if (status == FLASH_COMPLETE) {
             /* if the previous operation is completed, proceed to program the new data */
+
+#if defined(FLASH_CR_PSIZE)
+            FLASH->CR &= ~FLASH_CR_PSIZE;
+            FLASH->CR |= FLASH_CR_PSIZE_0;
+#endif
             FLASH->CR |= FLASH_CR_PG;
             *(__IO uint16_t*)Address = Data;
             /* Wait for last operation to be completed */
diff --git a/tmk_core/common/chibios/suspend.c b/tmk_core/common/chibios/suspend.c
index 38517e06f..9310a9992 100644
--- a/tmk_core/common/chibios/suspend.c
+++ b/tmk_core/common/chibios/suspend.c
@@ -7,30 +7,12 @@
 #include "action.h"
 #include "action_util.h"
 #include "mousekey.h"
+#include "programmable_button.h"
 #include "host.h"
 #include "suspend.h"
 #include "led.h"
 #include "wait.h"
 
-#ifdef AUDIO_ENABLE
-#    include "audio.h"
-#endif /* AUDIO_ENABLE */
-
-#ifdef BACKLIGHT_ENABLE
-#    include "backlight.h"
-#endif
-
-#if defined(RGBLIGHT_SLEEP) && defined(RGBLIGHT_ENABLE)
-#    include "rgblight.h"
-#endif
-
-#ifdef LED_MATRIX_ENABLE
-#    include "led_matrix.h"
-#endif
-#ifdef RGB_MATRIX_ENABLE
-#    include "rgb_matrix.h"
-#endif
-
 /** \brief suspend idle
  *
  * FIXME: needs doc
@@ -40,61 +22,12 @@ void suspend_idle(uint8_t time) {
     wait_ms(time);
 }
 
-/** \brief Run keyboard level Power down
- *
- * FIXME: needs doc
- */
-__attribute__((weak)) void suspend_power_down_user(void) {}
-/** \brief Run keyboard level Power down
- *
- * FIXME: needs doc
- */
-__attribute__((weak)) void suspend_power_down_kb(void) { suspend_power_down_user(); }
-
 /** \brief suspend power down
  *
  * FIXME: needs doc
  */
 void suspend_power_down(void) {
-#ifdef BACKLIGHT_ENABLE
-    backlight_set(0);
-#endif
-
-#ifdef LED_MATRIX_ENABLE
-    led_matrix_task();
-#endif
-#ifdef RGB_MATRIX_ENABLE
-    rgb_matrix_task();
-#endif
-
-    // Turn off LED indicators
-    uint8_t leds_off = 0;
-#if defined(BACKLIGHT_CAPS_LOCK) && defined(BACKLIGHT_ENABLE)
-    if (is_backlight_enabled()) {
-        // Don't try to turn off Caps Lock indicator as it is backlight and backlight is already off
-        leds_off |= (1 << USB_LED_CAPS_LOCK);
-    }
-#endif
-    led_set(leds_off);
-
-    // TODO: figure out what to power down and how
-    // shouldn't power down TPM/FTM if we want a breathing LED
-    // also shouldn't power down USB
-#if defined(RGBLIGHT_SLEEP) && defined(RGBLIGHT_ENABLE)
-    rgblight_suspend();
-#endif
-
-#if defined(LED_MATRIX_ENABLE)
-    led_matrix_set_suspend_state(true);
-#endif
-#if defined(RGB_MATRIX_ENABLE)
-    rgb_matrix_set_suspend_state(true);
-#endif
-#ifdef AUDIO_ENABLE
-    stop_all_notes();
-#endif /* AUDIO_ENABLE */
-
-    suspend_power_down_kb();
+    suspend_power_down_quantum();
     // on AVR, this enables the watchdog for 15ms (max), and goes to
     // SLEEP_MODE_PWR_DOWN
 
@@ -147,23 +80,13 @@ void suspend_wakeup_init(void) {
 #ifdef MOUSEKEY_ENABLE
     mousekey_clear();
 #endif /* MOUSEKEY_ENABLE */
+#ifdef PROGRAMMABLE_BUTTON_ENABLE
+    programmable_button_clear();
+#endif /* PROGRAMMABLE_BUTTON_ENABLE */
 #ifdef EXTRAKEY_ENABLE
     host_system_send(0);
     host_consumer_send(0);
 #endif /* EXTRAKEY_ENABLE */
-#ifdef BACKLIGHT_ENABLE
-    backlight_init();
-#endif /* BACKLIGHT_ENABLE */
-    led_set(host_keyboard_leds());
-#if defined(RGBLIGHT_SLEEP) && defined(RGBLIGHT_ENABLE)
-    rgblight_wakeup();
-#endif
 
-#if defined(LED_MATRIX_ENABLE)
-    led_matrix_set_suspend_state(false);
-#endif
-#if defined(RGB_MATRIX_ENABLE)
-    rgb_matrix_set_suspend_state(false);
-#endif
-    suspend_wakeup_init_kb();
+    suspend_wakeup_init_quantum();
 }
diff --git a/tmk_core/common/host.c b/tmk_core/common/host.c
index f0c396b18..56d4bb084 100644
--- a/tmk_core/common/host.c
+++ b/tmk_core/common/host.c
@@ -30,8 +30,9 @@ extern keymap_config_t keymap_config;
 #endif
 
 static host_driver_t *driver;
-static uint16_t       last_system_report   = 0;
-static uint16_t       last_consumer_report = 0;
+static uint16_t       last_system_report              = 0;
+static uint16_t       last_consumer_report            = 0;
+static uint32_t       last_programmable_button_report = 0;
 
 void host_set_driver(host_driver_t *d) { driver = d; }
 
@@ -122,6 +123,16 @@ void host_digitizer_send(digitizer_t *digitizer) {
 
 __attribute__((weak)) void send_digitizer(report_digitizer_t *report) {}
 
+void host_programmable_button_send(uint32_t report) {
+    if (report == last_programmable_button_report) return;
+    last_programmable_button_report = report;
+
+    if (!driver) return;
+    (*driver->send_programmable_button)(report);
+}
+
 uint16_t host_last_system_report(void) { return last_system_report; }
 
 uint16_t host_last_consumer_report(void) { return last_consumer_report; }
+
+uint32_t host_last_programmable_button_report(void) { return last_programmable_button_report; }
diff --git a/tmk_core/common/host.h b/tmk_core/common/host.h
index 2cffef6e1..6b15f0d0c 100644
--- a/tmk_core/common/host.h
+++ b/tmk_core/common/host.h
@@ -47,9 +47,11 @@ void    host_keyboard_send(report_keyboard_t *report);
 void    host_mouse_send(report_mouse_t *report);
 void    host_system_send(uint16_t data);
 void    host_consumer_send(uint16_t data);
+void    host_programmable_button_send(uint32_t data);
 
 uint16_t host_last_system_report(void);
 uint16_t host_last_consumer_report(void);
+uint32_t host_last_programmable_button_report(void);
 
 #ifdef __cplusplus
 }
diff --git a/tmk_core/common/host_driver.h b/tmk_core/common/host_driver.h
index 2aebca043..affd0dcb3 100644
--- a/tmk_core/common/host_driver.h
+++ b/tmk_core/common/host_driver.h
@@ -29,6 +29,7 @@ typedef struct {
     void (*send_mouse)(report_mouse_t *);
     void (*send_system)(uint16_t);
     void (*send_consumer)(uint16_t);
+    void (*send_programmable_button)(uint32_t);
 } host_driver_t;
 
 void send_digitizer(report_digitizer_t *report);
\ No newline at end of file
diff --git a/tmk_core/common/report.h b/tmk_core/common/report.h
index f2223e806..1adc892f3 100644
--- a/tmk_core/common/report.h
+++ b/tmk_core/common/report.h
@@ -29,6 +29,7 @@ enum hid_report_ids {
     REPORT_ID_MOUSE,
     REPORT_ID_SYSTEM,
     REPORT_ID_CONSUMER,
+    REPORT_ID_PROGRAMMABLE_BUTTON,
     REPORT_ID_NKRO,
     REPORT_ID_JOYSTICK,
     REPORT_ID_DIGITIZER
@@ -196,6 +197,11 @@ typedef struct {
 } __attribute__((packed)) report_extra_t;
 
 typedef struct {
+    uint8_t  report_id;
+    uint32_t usage;
+} __attribute__((packed)) report_programmable_button_t;
+
+typedef struct {
 #ifdef MOUSE_SHARED_EP
     uint8_t report_id;
 #endif
diff --git a/tmk_core/common/suspend.h b/tmk_core/common/suspend.h
index 95845e4b6..081735f90 100644
--- a/tmk_core/common/suspend.h
+++ b/tmk_core/common/suspend.h
@@ -10,8 +10,10 @@ void suspend_wakeup_init(void);
 
 void suspend_wakeup_init_user(void);
 void suspend_wakeup_init_kb(void);
+void suspend_wakeup_init_quantum(void);
 void suspend_power_down_user(void);
 void suspend_power_down_kb(void);
+void suspend_power_down_quantum(void);
 
 #ifndef USB_SUSPEND_WAKEUP_DELAY
 #    define USB_SUSPEND_WAKEUP_DELAY 0
diff --git a/tmk_core/common/sync_timer.c b/tmk_core/common/sync_timer.c
index 68b92d8b4..de24b463b 100644
--- a/tmk_core/common/sync_timer.c
+++ b/tmk_core/common/sync_timer.c
@@ -26,7 +26,7 @@ SOFTWARE.
 #include "sync_timer.h"
 #include "keyboard.h"
 
-#if (defined(SPLIT_KEYBOARD) || defined(SERIAL_LINK_ENABLE)) && !defined(DISABLE_SYNC_TIMER)
+#if defined(SPLIT_KEYBOARD) && !defined(DISABLE_SYNC_TIMER)
 volatile int32_t sync_timer_ms;
 
 void sync_timer_init(void) { sync_timer_ms = 0; }
diff --git a/tmk_core/common/sync_timer.h b/tmk_core/common/sync_timer.h
index 744e2b50d..9ddef45bb 100644
--- a/tmk_core/common/sync_timer.h
+++ b/tmk_core/common/sync_timer.h
@@ -32,7 +32,7 @@ SOFTWARE.
 extern "C" {
 #endif
 
-#if (defined(SPLIT_KEYBOARD) || defined(SERIAL_LINK_ENABLE)) && !defined(DISABLE_SYNC_TIMER)
+#if defined(SPLIT_KEYBOARD) && !defined(DISABLE_SYNC_TIMER)
 void     sync_timer_init(void);
 void     sync_timer_update(uint32_t time);
 uint16_t sync_timer_read(void);
diff --git a/tmk_core/common/test/rules.mk b/tmk_core/common/test/rules.mk
index 48632a095..73d2302da 100644
--- a/tmk_core/common/test/rules.mk
+++ b/tmk_core/common/test/rules.mk
@@ -16,6 +16,7 @@ eeprom_stm32_tiny_INC := $(eeprom_stm32_INC)
 eeprom_stm32_large_INC := $(eeprom_stm32_INC)
 
 eeprom_stm32_SRC := \
+        $(TOP_DIR)/drivers/eeprom/eeprom_driver.c \
         $(TMK_PATH)/common/test/eeprom_stm32_tests.cpp \
         $(TMK_PATH)/common/test/flash_stm32_mock.c \
         $(TMK_PATH)/common/chibios/eeprom_stm32.c