libatrf: new function atrf_identify to identify the chip

- tools/lib/atrf.h, tools/lib/atrf.c (atrf_identify): added chip
  identification function to library
- tools/atrf-id/atrf-id.c (show_info): print information returned by
  atrf_identify
- tools/atrf-id/atrf-id.c (show_info): decode JEDEC manufacturer ID

tools/atrf-id/atrf-id.c

@@ -1,8 +1,8 @@
 /*
  * atrf-id/atrf-id.c - Identify a ben-wpan AT86RF230 board
  *
- * Written 2010 by Werner Almesberger
- * Copyright 2010 Werner Almesberger
+ * Written 2010-2011 by Werner Almesberger
+ * Copyright 2010-2011 Werner Almesberger
  *
  * 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
@@ -116,12 +116,30 @@ static void show_info(struct atrf_dsc *dsc)
 
 	show_usb_info(dsc);
 
+	printf("%10s", "");
+
+	switch (atrf_identify(dsc)) {
+	case atrf_unknown_chip:
+		printf("???");
+		break;
+	case artf_at86rf230:
+		printf("AT86RF230");
+		break;
+	case artf_at86rf231:
+		printf("AT86RF231");
+		break;
+	default:
+		abort();
+	}
+
 	part = atrf_reg_read(dsc, REG_PART_NUM);
 	version = atrf_reg_read(dsc, REG_VERSION_NUM);
 	man_id_0 = atrf_reg_read(dsc, REG_MAN_ID_0);
 	man_id_1 = atrf_reg_read(dsc, REG_MAN_ID_1);
-	printf("%10spart 0x%02x version %u manufacturer xxxx%02x%02x\n", "",
+	printf(", part 0x%02x version %u manufacturer xxxx%02x%02x",
 	    part, version, man_id_1, man_id_0);
+
+	printf(" (%s)\n", man_id_1 == 0 && man_id_0 == 0x1f ? "Atmel" : "???");
 }
 
 

tools/include/atrf.h

@@ -16,6 +16,13 @@
 #include <stdint.h>
 
 
+enum atrf_chip_id {
+	atrf_unknown_chip	= 0,
+	artf_at86rf230		= 1,
+	artf_at86rf231		= 2,
+};
+
+
 struct atrf_dsc;
 
 
@@ -29,6 +36,9 @@ int atrf_clear_error(struct atrf_dsc *dsc);
 
 void atrf_reset(struct atrf_dsc *dsc);
 void atrf_reset_rf(struct atrf_dsc *dsc);
+
+enum atrf_chip_id atrf_identify(struct atrf_dsc *dsc);
+
 int atrf_test_mode(struct atrf_dsc *dsc);
 
 void atrf_reg_write(struct atrf_dsc *dsc, uint8_t reg, uint8_t value);

tools/lib/atrf.c

@@ -1,8 +1,8 @@
 /*
  * lib/atrf.c - ATRF access functions library
  *
- * Written 2010 by Werner Almesberger
- * Copyright 2010 Werner Almesberger
+ * Written 2010-2011 by Werner Almesberger
+ * Copyright 2010-2011 Werner Almesberger
  *
  * 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
@@ -14,6 +14,8 @@
 #include <stdlib.h>
 #include <stdio.h>
 
+#include "at86rf230.h"
+
 #include "driver.h"
 #include "atrf.h"
 
@@ -99,6 +101,37 @@ void atrf_reset_rf(struct atrf_dsc *dsc)
 }
 
 
+enum atrf_chip_id atrf_identify(struct atrf_dsc *dsc)
+{
+	uint8_t part, version;
+
+	part = atrf_reg_read(dsc, REG_PART_NUM);
+	version = atrf_reg_read(dsc, REG_VERSION_NUM);
+	switch (part) {
+	case 2:	/* AT86RF230 */
+		switch (version) {
+		case 1: /* rev A */
+		case 2: /* rev B */
+			return artf_at86rf230;
+		default:
+			return atrf_unknown_chip;
+		}
+		break;
+	case 3:	/* AT86RF231 */
+		switch (version) {
+		case 2: /* rev A */
+			return artf_at86rf231;
+		default:
+			return atrf_unknown_chip;
+		}
+		break;
+	default:
+		return atrf_unknown_chip;
+	}
+	return atrf_unknown_chip;
+}
+
+
 int atrf_test_mode(struct atrf_dsc *dsc)
 {
 	if (!dsc->driver->test_mode)