command: Add command_decode_ptr() helper

Add a helper function to convert from a string buffer passed in the
args[] parameter to an actual pointer.  This avoids all the callers
needing to perfrom pointer manipulation.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/lcd_hd44780.c b/src/lcd_hd44780.c
index 9137cc71..fdba70c9 100644
--- a/src/lcd_hd44780.c
+++ b/src/lcd_hd44780.c
@@ -124,7 +124,7 @@ command_hd44780_send_cmds(uint32_t *args)
 {
     struct hd44780 *h = oid_lookup(args[0], command_config_hd44780);
     gpio_out_write(h->rs, 0);
-    uint8_t len = args[1], *cmds = (void*)(size_t)args[2];
+    uint8_t len = args[1], *cmds = command_decode_ptr(args[2]);
     hd44780_xmit(h, len, cmds);
 }
 DECL_COMMAND(command_hd44780_send_cmds, "hd44780_send_cmds oid=%c cmds=%*s");
@@ -134,7 +134,7 @@ command_hd44780_send_data(uint32_t *args)
 {
     struct hd44780 *h = oid_lookup(args[0], command_config_hd44780);
     gpio_out_write(h->rs, 1);
-    uint8_t len = args[1], *data = (void*)(size_t)args[2];
+    uint8_t len = args[1], *data = command_decode_ptr(args[2]);
     hd44780_xmit(h, len, data);
 }
 DECL_COMMAND(command_hd44780_send_data, "hd44780_send_data oid=%c data=%*s");