net: ip: Fix compiling with 15.4

Kconfig allows selecting NETWORKING_WITH_15_4_TI_CC2520 even if the
current board doesn't support it, and also selects it by default. This
breaks building the 15.4 sample with qemu_x86. Add a config option for
having CC2520 support and enable the choise only if it is available.

In addition, remove unused function from iee802154 code, as it now
fails the tests.

Jira: ZEP-697

Change-Id: Ib082f82acdd0f86d3306bbd3bb827f61b0fd0be1
Signed-off-by: Jaakko Hannikainen <jaakko.hannikainen@intel.com>

boards/quark_se_devboard/Kconfig.board

@@ -2,3 +2,4 @@
 config BOARD_QUARK_SE_DEVBOARD
 	bool "Quark SE Development Board"
 	depends on SOC_QUARK_SE
+	select NETWORKING_HAVE_TI_CC2520

drivers/ieee802154/Kconfig

@@ -36,6 +36,9 @@
 menu "IEEE 802.15.4 Options"
 depends on NETWORKING_WITH_15_4
 
+config NETWORKING_HAVE_TI_CC2520
+	bool
+
 if NETWORKING_WITH_15_4_TI_CC2520
 
 config SYS_LOG_TI_CC2520_LEVEL

drivers/ieee802154/ieee802154_cc2520.c

@@ -769,56 +769,6 @@ static int cc2520_set_ieee_addr(struct device *dev, const uint8_t *ieee_addr)
 	return 0;
 }
 
-static int cc2520_set_txpower(struct device *dev, short dbm)
-{
-	struct cc2520_context *cc2520 = dev->driver_data;
-	uint8_t pwr;
-
-	SYS_LOG_DBG("%s: %d\n", dbm);
-
-	/* See chapter 19 part 8 */
-	switch (dbm) {
-	case 5:
-		pwr = 0xF7;
-		break;
-	case 3:
-		pwr = 0xF2;
-		break;
-	case 2:
-		pwr = 0xAB;
-		break;
-	case 1:
-		pwr = 0x13;
-		break;
-	case 0:
-		pwr = 0x32;
-		break;
-	case -2:
-		pwr = 0x81;
-		break;
-	case -4:
-		pwr = 0x88;
-		break;
-	case -7:
-		pwr = 0x2C;
-		break;
-	case -18:
-		pwr = 0x03;
-		break;
-	default:
-		goto error;
-	}
-
-	if (!write_reg_txpower(&cc2520->spi, pwr)) {
-		goto error;
-	}
-
-	return 0;
-error:
-	SYS_LOG_ERR("%s: FAILED\n");
-	return -EIO;
-}
-
 static int cc2520_tx(struct device *dev, struct net_buf *buf)
 {
 	struct cc2520_context *cc2520 = dev->driver_data;

net/ip/Kconfig

@@ -411,12 +411,15 @@ default n
 help
 	The 802.15.4 layer can either support loopback within
 	or loopback with uart but not both at the same time.
+
+if NETWORKING_HAVE_TI_CC2520
 config	NETWORKING_WITH_15_4_TI_CC2520
 	bool
 	prompt "TI CC2520"
 	select TEST_RANDOM_GENERATOR
 	help
 	  Enable Texas Instruments CC2520 802.15.4 radio driver.
+endif
 
 config	NETWORKING_WITH_15_4_LOOPBACK
 	bool

samples/net/test_15_4/testcase.ini

@@ -0,0 +1,4 @@
+[test]
+tags = net
+platform_exclude = arduino_101_sss quark_se_sss_devboard
+build_only = true