1 /* ieee802154_cc2520.c - TI CC2520 driver */
8  * SPDX-License-Identifier: Apache-2.0
47  * 1 - Debug related functions
48  * 2 - Generic helper functions (for any parts)
49  * 3 - GPIO related functions
50  * 4 - TX related helper functions
51  * 5 - RX related helper functions
52  * 6 - Radio device API functions
53  * 7 - Legacy radio device API functions
54  * 8 - Initialization
68 	struct cc2520_context *cc2520 = dev->data;  in cc2520_print_gpio_config()
146 		LOG_DBG(" SFD");  in cc2520_print_exceptions()
207 	const struct cc2520_config *cfg = dev->config;  in z_cc2520_access()
243 		return (spi_transceive_dt(&cfg->bus, &tx, &rx) == 0);  in z_cc2520_access()
248 	return (spi_write_dt(&cfg->bus, &tx) == 0);  in z_cc2520_access()
270 		timeout--;  in verify_osc_stabilization()
279 	struct cc2520_context *cc2520 = dev->data;  in get_mac()
282 	uint32_t *ptr = (uint32_t *)(cc2520->mac_addr + 4);  in get_mac()
286 	cc2520->mac_addr[7] = (cc2520->mac_addr[7] & ~0x01) | 0x02;  in get_mac()
288 	cc2520->mac_addr[4] = CONFIG_IEEE802154_CC2520_MAC4;  in get_mac()
289 	cc2520->mac_addr[5] = CONFIG_IEEE802154_CC2520_MAC5;  in get_mac()
290 	cc2520->mac_addr[6] = CONFIG_IEEE802154_CC2520_MAC6;  in get_mac()
291 	cc2520->mac_addr[7] = CONFIG_IEEE802154_CC2520_MAC7;  in get_mac()
294 	cc2520->mac_addr[0] = 0x00;  in get_mac()
295 	cc2520->mac_addr[1] = 0x12;  in get_mac()
296 	cc2520->mac_addr[2] = 0x4b;  in get_mac()
297 	cc2520->mac_addr[3] = 0x00;  in get_mac()
299 	return cc2520->mac_addr;  in get_mac()
310 		return -EIO;  in cc2520_set_pan_id()
325 		return -EIO;  in cc2520_set_short_addr()
336 		return -EIO;  in cc2520_set_ieee_addr()
351 	const struct cc2520_config *cfg = dev->config;  in set_reset()
353 	gpio_pin_set_raw(cfg->reset.port, cfg->reset.pin, value);  in set_reset()
358 	const struct cc2520_config *cfg = dev->config;  in set_vreg_en()
360 	gpio_pin_set_raw(cfg->vreg_en.port, cfg->vreg_en.pin, value);  in set_vreg_en()
365 	const struct cc2520_config *cfg = dev->config;  in get_fifo()
367 	return gpio_pin_get_raw(cfg->fifo.port, cfg->fifo.pin);  in get_fifo()
372 	const struct cc2520_config *cfg = dev->config;  in get_fifop()
374 	return gpio_pin_get_raw(cfg->fifop.port, cfg->fifop.pin);  in get_fifop()
379 	const struct cc2520_config *cfg = dev->config;  in get_cca()
381 	return gpio_pin_get_raw(cfg->cca.port, cfg->cca.pin);  in get_cca()
390 	if (atomic_get(&cc2520->tx) == 1) {  in sfd_int_handler()
391 		atomic_set(&cc2520->tx, 0);  in sfd_int_handler()
392 		k_sem_give(&cc2520->tx_sync);  in sfd_int_handler()
402 	/* Note: Errata document - 1.2 */  in fifop_int_handler()
403 	if (!get_fifop(cc2520->dev) && !get_fifop(cc2520->dev)) {  in fifop_int_handler()
407 	if (!get_fifo(cc2520->dev)) {  in fifop_int_handler()
408 		cc2520->overflow = true;  in fifop_int_handler()
411 	k_sem_give(&cc2520->rx_lock);  in fifop_int_handler()
417 	const struct cc2520_config *cfg = dev->config;  in enable_fifop_interrupt()
420 	gpio_pin_interrupt_configure_dt(&cfg->fifop, mode);  in enable_fifop_interrupt()
426 	const struct cc2520_config *cfg = dev->config;  in enable_sfd_interrupt()
429 	gpio_pin_interrupt_configure_dt(&cfg->sfd, mode);  in enable_sfd_interrupt()
434 	const struct cc2520_config *cfg = dev->config;  in setup_gpio_callbacks()
435 	struct cc2520_context *cc2520 = dev->data;  in setup_gpio_callbacks()
437 	gpio_init_callback(&cc2520->sfd_cb, sfd_int_handler, BIT(cfg->sfd.pin));  in setup_gpio_callbacks()
438 	if (gpio_add_callback(cfg->sfd.port, &cc2520->sfd_cb) != 0) {  in setup_gpio_callbacks()
439 		return -EIO;  in setup_gpio_callbacks()
443 	gpio_init_callback(&cc2520->fifop_cb, fifop_int_handler, BIT(cfg->fifop.pin));  in setup_gpio_callbacks()
444 	if (gpio_add_callback(cfg->fifop.port, &cc2520->fifop_cb) != 0) {  in setup_gpio_callbacks()
445 		return -EIO;  in setup_gpio_callbacks()
486 		timeout--;  in verify_tx_done()
499 	/* Note: Errata document - 1.1 */  in flush_rxfifo()
525 	if (!z_cc2520_access(dev, true, CC2520_INS_RXBUF, 0, buf->data, len)) {  in read_rxfifo_content()
553 	 * lqi = (lqi - 50) * 4  in insert_radio_noise_details()
561 		lqi = (lqi - 50U) << 2;  in insert_radio_noise_details()
597 	struct cc2520_context *cc2520 = dev->data;  in cc2520_rx()
604 		k_sem_take(&cc2520->rx_lock, K_FOREVER);  in cc2520_rx()
606 		if (cc2520->overflow) {  in cc2520_rx()
608 			cc2520->overflow = false;  in cc2520_rx()
619 		pkt = net_pkt_rx_alloc_with_buffer(cc2520->iface, pkt_len,  in cc2520_rx()
627 			pkt_len -= 2U;  in cc2520_rx()
630 		if (!read_rxfifo_content(dev, pkt->buffer, pkt_len)) {  in cc2520_rx()
640 		if (ieee802154_handle_ack(cc2520->iface, pkt) == NET_OK) {  in cc2520_rx()
647 		if (net_recv_data(cc2520->iface, pkt) < 0) {  in cc2520_rx()
652 		log_stack_usage(&cc2520->cc2520_rx_thread);  in cc2520_rx()
679 		return -EBUSY;  in cc2520_cca()
690 		return -EINVAL;  in cc2520_set_channel()
694 		return -ENOTSUP;  in cc2520_set_channel()
698 	channel = 11 + (channel - 11) * 5U;  in cc2520_set_channel()
702 		return -EIO;  in cc2520_set_channel()
716 		return -ENOTSUP;  in cc2520_filter()
720 		return cc2520_set_ieee_addr(dev, filter->ieee_addr);  in cc2520_filter()
722 		return cc2520_set_short_addr(dev, filter->short_addr);  in cc2520_filter()
724 		return cc2520_set_pan_id(dev, filter->pan_id);  in cc2520_filter()
727 	return -ENOTSUP;  in cc2520_filter()
753 	case -2:  in cc2520_set_txpower()
756 	case -4:  in cc2520_set_txpower()
759 	case -7:  in cc2520_set_txpower()
762 	case -18:  in cc2520_set_txpower()
776 	return -EIO;  in cc2520_set_txpower()
784 	uint8_t *frame = frag->data;  in cc2520_tx()
785 	uint8_t len = frag->len;  in cc2520_tx()
786 	struct cc2520_context *cc2520 = dev->data;  in cc2520_tx()
792 		return -ENOTSUP;  in cc2520_tx()
810 	k_sem_take(&cc2520->access_lock, K_FOREVER);  in cc2520_tx()
815 		atomic_set(&cc2520->tx, 1);  in cc2520_tx()
816 		k_sem_init(&cc2520->tx_sync, 0, K_SEM_MAX_LIMIT);  in cc2520_tx()
824 		k_sem_take(&cc2520->tx_sync, K_MSEC(10));  in cc2520_tx()
826 		retry--;  in cc2520_tx()
831 	k_sem_give(&cc2520->access_lock);  in cc2520_tx()
840 	k_sem_give(&cc2520->access_lock);  in cc2520_tx()
846 	atomic_set(&cc2520->tx, 0);  in cc2520_tx()
849 	return -EIO;  in cc2520_tx()
858 		return -EIO;  in cc2520_start()
879 		return -EIO;  in cc2520_stop()
885 /* driver-allocated attribute memory - constant across all driver instances */
918 		return -EIO;  in power_on_and_setup()
933 		return -EIO;  in power_on_and_setup()
952 		return -EIO;  in power_on_and_setup()
959 		return -EIO;  in power_on_and_setup()
969 	const struct cc2520_config *cfg = dev->config;  in configure_gpios()
971 	if (!gpio_is_ready_dt(&cfg->vreg_en) ||  in configure_gpios()
972 	    !gpio_is_ready_dt(&cfg->reset) ||  in configure_gpios()
973 	    !gpio_is_ready_dt(&cfg->fifo) ||  in configure_gpios()
974 	    !gpio_is_ready_dt(&cfg->cca) ||  in configure_gpios()
975 	    !gpio_is_ready_dt(&cfg->sfd) ||  in configure_gpios()
976 	    !gpio_is_ready_dt(&cfg->fifop)) {  in configure_gpios()
977 		return -ENODEV;  in configure_gpios()
980 	gpio_pin_configure_dt(&cfg->vreg_en, GPIO_OUTPUT_LOW);  in configure_gpios()
981 	gpio_pin_configure_dt(&cfg->reset, GPIO_OUTPUT_LOW);  in configure_gpios()
982 	gpio_pin_configure_dt(&cfg->fifo, GPIO_INPUT);  in configure_gpios()
983 	gpio_pin_configure_dt(&cfg->cca, GPIO_INPUT);  in configure_gpios()
984 	gpio_pin_configure_dt(&cfg->sfd, GPIO_INPUT);  in configure_gpios()
985 	gpio_pin_configure_dt(&cfg->fifop, GPIO_INPUT);  in configure_gpios()
992 	const struct cc2520_config *cfg = dev->config;  in cc2520_init()
993 	struct cc2520_context *cc2520 = dev->data;  in cc2520_init()
995 	cc2520->dev = dev;  in cc2520_init()
997 	atomic_set(&cc2520->tx, 0);  in cc2520_init()
998 	k_sem_init(&cc2520->rx_lock, 0, K_SEM_MAX_LIMIT);  in cc2520_init()
1001 	k_sem_init(&cc2520->access_lock, 1, 1);  in cc2520_init()
1005 		LOG_ERR("Configuring GPIOS failed");  in cc2520_init()
1006 		return -EIO;  in cc2520_init()
1009 	if (!spi_is_ready_dt(&cfg->bus)) {  in cc2520_init()
1010 		LOG_ERR("SPI bus %s not ready", cfg->bus.bus->name);  in cc2520_init()
1011 		return -EIO;  in cc2520_init()
1018 		return -EIO;  in cc2520_init()
1021 	k_thread_create(&cc2520->cc2520_rx_thread, cc2520->cc2520_rx_stack,  in cc2520_init()
1025 	k_thread_name_set(&cc2520->cc2520_rx_thread, "cc2520_rx");  in cc2520_init()
1035 	struct cc2520_context *cc2520 = dev->data;  in cc2520_iface_init()
1040 	cc2520->iface = iface;  in cc2520_iface_init()
1051 	.sfd = GPIO_DT_SPEC_INST_GET(0, sfd_gpios),
1109 	const struct cc2520_config *cfg = dev->config;  in instruct_uccm_ccm()
1110 	struct cc2520_context *ctx = dev->data;  in instruct_uccm_ccm()
1141 	k_sem_take(&ctx->access_lock, K_FOREVER);  in instruct_uccm_ccm()
1143 	ret = spi_write_dt(&cfg->bus, &tx);  in instruct_uccm_ccm()
1145 	k_sem_give(&ctx->access_lock);  in instruct_uccm_ccm()
1158 	nonce[0] = 0 | (apkt->ad_len ? 0x40 : 0) | (m << 3) | 1;  in generate_nonce()
1162 	nonce[14] = (uint8_t)(apkt->pkt->in_len >> 8);  in generate_nonce()
1163 	nonce[15] = (uint8_t)(apkt->pkt->in_len);  in generate_nonce()
1173 	const struct device *cc2520 = ctx->device;  in insert_crypto_parameters()
1179 	if (!apkt->pkt->out_buf || !apkt->pkt->out_buf_max) {  in insert_crypto_parameters()
1181 		return -EINVAL;  in insert_crypto_parameters()
1184 	if (!ctx->key.bit_stream || !ctx->keylen) {  in insert_crypto_parameters()
1186 		return -EINVAL;  in insert_crypto_parameters()
1189 	if (!(ctx->flags & CAP_INPLACE_OPS)) {  in insert_crypto_parameters()
1190 		LOG_ERR("It supports only in-place operation");  in insert_crypto_parameters()
1191 		return -EINVAL;  in insert_crypto_parameters()
1194 	if (!apkt->ad || !apkt->ad_len) {  in insert_crypto_parameters()
1196 		return -EINVAL;  in insert_crypto_parameters()
1199 	if (apkt->pkt->in_buf && apkt->pkt->in_buf - apkt->ad_len != apkt->ad) {  in insert_crypto_parameters()
1200 		LOG_ERR("In-place needs ad and input in same memory");  in insert_crypto_parameters()
1201 		return -EINVAL;  in insert_crypto_parameters()
1204 	if (!apkt->pkt->in_buf) {  in insert_crypto_parameters()
1205 		if (!ctx->mode_params.ccm_info.tag_len) {  in insert_crypto_parameters()
1207 			return -EINVAL;  in insert_crypto_parameters()
1210 		in_buf = apkt->ad;  in insert_crypto_parameters()
1211 		in_len = apkt->ad_len;  in insert_crypto_parameters()
1217 		memcpy(in_buf, apkt->ad, apkt->ad_len);  in insert_crypto_parameters()
1218 		memcpy(in_buf + apkt->ad_len,  in insert_crypto_parameters()
1219 		       apkt->pkt->in_buf, apkt->pkt->in_len);  in insert_crypto_parameters()
1220 		in_len = apkt->ad_len + apkt->pkt->in_len;  in insert_crypto_parameters()
1222 		*auth_crypt = !apkt->tag ? apkt->pkt->in_len :  in insert_crypto_parameters()
1223 			apkt->pkt->in_len - ctx->mode_params.ccm_info.tag_len;  in insert_crypto_parameters()
1226 	if (ctx->mode_params.ccm_info.tag_len) {  in insert_crypto_parameters()
1227 		if ((ctx->mode_params.ccm_info.tag_len >> 2) > 3) {  in insert_crypto_parameters()
1230 			m = ctx->mode_params.ccm_info.tag_len >> 2;  in insert_crypto_parameters()
1237 		return -EIO;  in insert_crypto_parameters()
1241 	sys_memcpy_swap(data, ctx->key.bit_stream, ctx->keylen);  in insert_crypto_parameters()
1246 		return -EIO;  in insert_crypto_parameters()
1254 		return -EIO;  in insert_crypto_parameters()
1264 	const struct device *cc2520 = ctx->device;  in cc2520_crypto_ccm()
1268 	if (!apkt || !apkt->pkt) {  in cc2520_crypto_ccm()
1270 		return -EINVAL;  in cc2520_crypto_ccm()
1279 	apkt->pkt->out_len = apkt->pkt->in_len + apkt->ad_len +  in cc2520_crypto_ccm()
1280 		(m ? ctx->mode_params.ccm_info.tag_len : 0);  in cc2520_crypto_ccm()
1282 	if (apkt->pkt->out_len > apkt->pkt->out_buf_max) {  in cc2520_crypto_ccm()
1284 			    apkt->pkt->out_len, apkt->pkt->out_buf_max);  in cc2520_crypto_ccm()
1285 		return -ENOBUFS;  in cc2520_crypto_ccm()
1290 			       0x000, apkt->ad_len, m) ||  in cc2520_crypto_ccm()
1292 			      apkt->pkt->out_buf, apkt->pkt->out_len)) {  in cc2520_crypto_ccm()
1294 		return -EIO;  in cc2520_crypto_ccm()
1297 	if (apkt->tag) {  in cc2520_crypto_ccm()
1298 		memcpy(apkt->tag, apkt->pkt->out_buf + apkt->pkt->in_len,  in cc2520_crypto_ccm()
1299 					ctx->mode_params.ccm_info.tag_len);  in cc2520_crypto_ccm()
1309 	const struct device *cc2520 = ctx->device;  in cc2520_crypto_uccm()
1313 	if (!apkt || !apkt->pkt) {  in cc2520_crypto_uccm()
1315 		return -EINVAL;  in cc2520_crypto_uccm()
1318 	if (ctx->mode_params.ccm_info.tag_len && !apkt->tag) {  in cc2520_crypto_uccm()
1320 		return -EINVAL;  in cc2520_crypto_uccm()
1328 	apkt->pkt->out_len = apkt->pkt->in_len + apkt->ad_len;  in cc2520_crypto_uccm()
1332 			       0x000, apkt->ad_len, m) ||  in cc2520_crypto_uccm()
1334 			      apkt->pkt->out_buf, apkt->pkt->out_len)) {  in cc2520_crypto_uccm()
1336 		return -EIO;  in cc2520_crypto_uccm()
1341 		return -EBADMSG;  in cc2520_crypto_uccm()
1360 		return -EINVAL;  in cc2520_crypto_begin_session()
1363 	if (ctx->mode_params.ccm_info.nonce_len != 13U) {  in cc2520_crypto_begin_session()
1365 			    ctx->mode_params.ccm_info.nonce_len);  in cc2520_crypto_begin_session()
1366 		return -EINVAL;  in cc2520_crypto_begin_session()
1370 		ctx->ops.ccm_crypt_hndlr = cc2520_crypto_ccm;  in cc2520_crypto_begin_session()
1372 		ctx->ops.ccm_crypt_hndlr = cc2520_crypto_uccm;  in cc2520_crypto_begin_session()
1375 	ctx->ops.cipher_mode = mode;  in cc2520_crypto_begin_session()
1376 	ctx->device = dev;  in cc2520_crypto_begin_session()
1386 	ctx->ops.ccm_crypt_hndlr = NULL;  in cc2520_crypto_free_session()
1387 	ctx->device = NULL;  in cc2520_crypto_free_session()