lpc: Initial lpcxpresso bits

[fw/altos] / src / lpc / ao_led_lpc.c

diff --git a/src/lpc/ao_led_lpc.c b/src/lpc/ao_led_lpc.c
new file mode 100644 (file)
index 0000000..098dad6
--- /dev/null
+++ b/src/lpc/ao_led_lpc.c
@@ -0,0 +1,65 @@
+/*
+ * Copyright © 2013 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#include <ao.h>
+
+__pdata uint16_t ao_led_enable;
+
+void
+ao_led_on(uint16_t colors)
+{
+       lpc_gpio.pin[LED_PORT] = 0xffffffff;
+}
+
+void
+ao_led_off(uint16_t colors)
+{
+       lpc_gpio.pin[LED_PORT] = 0;
+}
+
+void
+ao_led_set(uint16_t colors)
+{
+       uint16_t        on = colors & ao_led_enable;
+       uint16_t        off = ~colors & ao_led_enable;
+
+       ao_led_off(off);
+       ao_led_on(on);
+}
+
+void
+ao_led_toggle(uint16_t colors)
+{
+}
+
+void
+ao_led_for(uint16_t colors, uint16_t ticks) __reentrant
+{
+       ao_led_on(colors);
+       ao_delay(ticks);
+       ao_led_off(colors);
+}
+
+void
+ao_led_init(uint16_t enable)
+{
+       int     bit;
+
+       ao_led_enable = enable;
+       lpc_scb.sysahbclkctrl |= (1 << LPC_SCB_SYSAHBCLKCTRL_GPIO);
+       lpc_gpio.dir[LED_PORT] |= enable;
+}