1 files changed, 85 insertions, 0 deletions
diff --git a/openpcd/firmware/src/os/led.c b/openpcd/firmware/src/os/led.c
new file mode 100644
index 0000000..8c34c6c
--- /dev/null
+++ b/openpcd/firmware/src/os/led.c
@@ -0,0 +1,85 @@
+
+#include <sys/types.h>
+#include <errno.h>
+#include <lib_AT91SAM7.h>
+#include <openpcd.h>
+#include "../openpcd.h"
+#include <os/usb_handler.h>
+#include <os/req_ctx.h>
+#include <os/dbgu.h>
+
+static int led2port(int led)
+{
+	if (led == 1)
+		return OPENPCD_PIO_LED1;
+	else if (led == 2)
+		return OPENPCD_PIO_LED2;
+	else
+		return 0;
+}
+
+void led_switch(int led, int on)
+{
+	int port = led2port(led);
+
+	if (port == -1)
+		return;
+
+	if (on)
+		AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, port);
+	else
+		AT91F_PIO_SetOutput(AT91C_BASE_PIOA, port);
+}
+
+int led_get(int led)
+{
+	int port = led2port(led);
+
+	if (port == -1)
+		return -1;
+
+	return !(AT91F_PIO_GetOutputDataStatus(AT91C_BASE_PIOA) & port);
+}
+
+int led_toggle(int led)
+{
+	int on = led_get(led);
+	if (on == -1)
+		return -1;
+
+	if (on)
+		led_switch(led, 0);
+	else
+		led_switch(led, 1);
+	
+	return !on;
+}
+
+static int led_usb_rx(struct req_ctx *rctx)
+{
+	struct openpcd_hdr *poh = (struct openpcd_hdr *) &rctx->rx.data[0];
+	int ret = 1;
+
+	switch (poh->cmd) {
+	case OPENPCD_CMD_SET_LED:
+		DEBUGP("SET LED(%u,%u) ", poh->reg, poh->val);
+		led_switch(poh->reg, poh->val);
+		break;
+	default:
+		DEBUGP("UNKNOWN ");
+		ret = -EINVAL;
+		break;
+	}
+	req_ctx_put(rctx);
+	return 1;
+}
+
+void led_init(void)
+{
+	AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPCD_PIO_LED1);
+	AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPCD_PIO_LED2);
+	led_switch(1, 0);
+	led_switch(2, 0);
+
+	usb_hdlr_register(&led_usb_rx, OPENPCD_CMD_CLS_LED);
+}