From daa4a4235fd4a88b3b6f64e4a2cf590f28f4b65b Mon Sep 17 00:00:00 2001
From: tmk <nobody@nowhere>
Date: Sun, 28 Jul 2013 17:34:41 +0900
Subject: Add NKRO support for LUFA

---
 common/host.c   | 36 ++++++++++++++++++++----------------
 common/report.h | 36 +++++++++++++++++++++++++++++-------
 2 files changed, 49 insertions(+), 23 deletions(-)

(limited to 'common')

diff --git a/common/host.c b/common/host.c
index 2c2279aa4e..5694516527 100644
--- a/common/host.c
+++ b/common/host.c
@@ -37,8 +37,10 @@ static uint16_t last_consumer_report = 0;
 
 static inline void add_key_byte(uint8_t code);
 static inline void del_key_byte(uint8_t code);
+#ifdef NKRO_ENABLE
 static inline void add_key_bit(uint8_t code);
 static inline void del_key_bit(uint8_t code);
+#endif
 
 
 void host_set_driver(host_driver_t *d)
@@ -63,11 +65,11 @@ void host_keyboard_send(report_keyboard_t *report)
     (*driver->send_keyboard)(report);
 
     if (debug_keyboard) {
-        dprint("keys: ");
-        for (int i = 0; i < REPORT_KEYS; i++) {
-            dprintf("%02X ", keyboard_report->keys[i]);
+        dprint("keyboard_report: ");
+        for (uint8_t i = 0; i < REPORT_SIZE; i++) {
+            dprintf("%02X ", keyboard_report->raw[i]);
         }
-        dprintf(" mods: %02X\n", keyboard_report->mods);
+        dprint("\n");
     }
 }
 
@@ -122,8 +124,9 @@ void host_del_key(uint8_t key)
 
 void host_clear_keys(void)
 {
-    for (int8_t i = 0; i < REPORT_KEYS; i++) {
-        keyboard_report->keys[i] = 0;
+    // not clea  mods
+    for (int8_t i = 1; i < REPORT_SIZE; i++) {
+        keyboard_report->raw[i] = 0;
     }
 }
 
@@ -155,8 +158,8 @@ void host_clear_mods(void)
 uint8_t host_has_anykey(void)
 {
     uint8_t cnt = 0;
-    for (int i = 0; i < REPORT_KEYS; i++) {
-        if (keyboard_report->keys[i])
+    for (uint8_t i = 1; i < REPORT_SIZE; i++) {
+        if (keyboard_report->raw[i])
             cnt++;
     }
     return cnt;
@@ -172,9 +175,9 @@ uint8_t host_get_first_key(void)
 #ifdef NKRO_ENABLE
     if (keyboard_nkro) {
         uint8_t i = 0;
-        for (; i < REPORT_KEYS && !keyboard_report->keys[i]; i++)
+        for (; i < REPORT_BITS && !keyboard_report->nkro.bits[i]; i++)
             ;
-        return i<<3 | biton(keyboard_report->keys[i]);
+        return i<<3 | biton(keyboard_report->nkro.bits[i]);
     }
 #endif
     return keyboard_report->keys[0];
@@ -222,18 +225,18 @@ static inline void add_key_byte(uint8_t code)
 
 static inline void del_key_byte(uint8_t code)
 {
-    int i = 0;
-    for (; i < REPORT_KEYS; i++) {
+    for (uint8_t i = 0; i < REPORT_KEYS; i++) {
         if (keyboard_report->keys[i] == code) {
             keyboard_report->keys[i] = 0;
         }
     }
 }
 
+#ifdef NKRO_ENABLE
 static inline void add_key_bit(uint8_t code)
 {
-    if ((code>>3) < REPORT_KEYS) {
-        keyboard_report->keys[code>>3] |= 1<<(code&7);
+    if ((code>>3) < REPORT_BITS) {
+        keyboard_report->nkro.bits[code>>3] |= 1<<(code&7);
     } else {
         dprintf("add_key_bit: can't add: %02X\n", code);
     }
@@ -241,9 +244,10 @@ static inline void add_key_bit(uint8_t code)
 
 static inline void del_key_bit(uint8_t code)
 {
-    if ((code>>3) < REPORT_KEYS) {
-        keyboard_report->keys[code>>3] &= ~(1<<(code&7));
+    if ((code>>3) < REPORT_BITS) {
+        keyboard_report->nkro.bits[code>>3] &= ~(1<<(code&7));
     } else {
         dprintf("del_key_bit: can't del: %02X\n", code);
     }
 }
+#endif
diff --git a/common/report.h b/common/report.h
index 02deb7797e..91982840af 100644
--- a/common/report.h
+++ b/common/report.h
@@ -72,14 +72,20 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 
 /* key report size(NKRO or boot mode) */
-#if defined(PROTOCOL_PJRC)
+#if defined(PROTOCOL_PJRC) && defined(NKRO_ENABLE)
 #   include "usb.h"
-#   if defined(KBD2_REPORT_KEYS) && KBD2_REPORT_KEYS > KBD_REPORT_KEYS
-#       define REPORT_KEYS KBD2_REPORT_KEYS
-#   else
-#       define REPORT_KEYS KBD_REPORT_KEYS
-#   endif
+#   define REPORT_SIZE KBD2_SIZE
+#   define REPORT_KEYS (KBD2_SIZE - 2)
+#   define REPORT_BITS (KBD2_SIZE - 1)
+
+#elif defined(PROTOCOL_LUFA) && defined(NKRO_ENABLE)
+#   include "protocol/lufa/descriptor.h"
+#   define REPORT_SIZE NKRO_EPSIZE
+#   define REPORT_KEYS (NKRO_EPSIZE - 2)
+#   define REPORT_BITS (NKRO_EPSIZE - 1)
+
 #else
+#   define REPORT_SIZE 8
 #   define REPORT_KEYS 6
 #endif
 
@@ -88,11 +94,27 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 extern "C" {
 #endif
 
+typedef union {
+    uint8_t raw[REPORT_SIZE];
+    struct {
+        uint8_t mods;
+        uint8_t reserved;
+        uint8_t keys[REPORT_KEYS];
+    };
+#ifdef NKRO_ENABLE
+    struct {
+        uint8_t mods;
+        uint8_t bits[REPORT_BITS];
+    } nkro;
+#endif
+} __attribute__ ((packed)) report_keyboard_t;
+/*
 typedef struct {
     uint8_t mods;
-    uint8_t rserved;
+    uint8_t reserved;
     uint8_t keys[REPORT_KEYS];
 } __attribute__ ((packed)) report_keyboard_t;
+*/
 
 typedef struct {
     uint8_t buttons;
-- 
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