From 8acfc7b73e724162a46d6e647041a28a15c78f56 Mon Sep 17 00:00:00 2001
From: Keir Fraser <keir.xen@gmail.com>
Date: Thu, 10 Oct 2019 08:06:44 +0100
Subject: [PATCH] Allow multi-row hotkey text. Include example for Piotr
 AmiGotek.

---
 inc/config.h         |  2 +-
 src/default_config.c | 15 +++++++++++++++
 src/main.c           | 15 +++++++++++----
 3 files changed, 27 insertions(+), 5 deletions(-)

diff --git a/inc/config.h b/inc/config.h
index 4dbf89c..146ddf5 100644
--- a/inc/config.h
+++ b/inc/config.h
@@ -37,7 +37,7 @@ extern struct __packed config {
         /* Mask of user pins driven HIGH by this hotkey. 
          * Pins in @pin_mod but not in @pin_high are driven LOW. */
         uint8_t pin_high;
-        char str[22];
+        char str[30];
     } hotkey[10];
 
     uint16_t crc16_ccitt;
diff --git a/src/default_config.c b/src/default_config.c
index a15e822..c550e5c 100644
--- a/src/default_config.c
+++ b/src/default_config.c
@@ -58,6 +58,21 @@ const static struct config dfl_config = {
     }
 #endif
 
+#if 0
+    /* An example configuration for DF0/DF1 switching, for Piotr. 
+     * Also an example of multi-row hotkey description text. */
+    .user_pin_opendrain = 0,
+    .user_pin_pushpull  = U(0),
+    .user_pin_high      = U(0), /* Default = DF0: AmiGotek */
+    .hotkey = {
+        [F(9)]  = { .str = "DF0: AmiGotek\0DF1: Floppy",
+                    .pin_mod  = U(0),
+                    .pin_high = U(0), },
+        [F(10)] = { .str = "DF0: Floppy\0DF1: AmiGotek",
+                    .pin_mod  = U(0), },
+    }
+#endif
+
 #undef F
 #undef U
 
diff --git a/src/main.c b/src/main.c
index 6b6a792..698e110 100644
--- a/src/main.c
+++ b/src/main.c
@@ -469,6 +469,7 @@ static void update_amiga_keys(void)
         static uint16_t hk_latch;
         bool_t hk_pressed;
         uint32_t s, r;
+        char *p;
         /* Unused hotkey? */
         if (hk->pin_mod == 0)
             continue;
@@ -484,10 +485,16 @@ static void update_amiga_keys(void)
         s = (uint16_t)hk->pin_high << pin_u0;
         r = (uint16_t)(hk->pin_mod & ~hk->pin_high) << pin_u0;
         gpio_user->bsrr = ((uint32_t)r << 16) | s;
-        if (hk->str[0]) {
-            strcpy((char *)notify.text[0], hk->str);
-            notify.cols = strlen(hk->str);
-            notify.rows = 1;
+        if (*(p = hk->str)) {
+            notify.cols = notify.rows = 0;
+            memset(notify.text, 0, sizeof(notify.text));
+            while (*p) {
+                int len = strlen(p);
+                strcpy((char *)notify.text[notify.rows], p);
+                notify.cols = max(notify.cols, len);
+                notify.rows++;
+                p += len + 1;
+            }
             notify.on = TRUE;
             notify_time = time_now();
         }