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()
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 	sys_rand_get(&cc2520->mac_addr[4], 4U);  in get_mac()
284 	cc2520->mac_addr[7] = (cc2520->mac_addr[7] & ~0x01) | 0x02;  in get_mac()
286 	cc2520->mac_addr[4] = CONFIG_IEEE802154_CC2520_MAC4;  in get_mac()
287 	cc2520->mac_addr[5] = CONFIG_IEEE802154_CC2520_MAC5;  in get_mac()
288 	cc2520->mac_addr[6] = CONFIG_IEEE802154_CC2520_MAC6;  in get_mac()
289 	cc2520->mac_addr[7] = CONFIG_IEEE802154_CC2520_MAC7;  in get_mac()
292 	cc2520->mac_addr[0] = 0x00;  in get_mac()
293 	cc2520->mac_addr[1] = 0x12;  in get_mac()
294 	cc2520->mac_addr[2] = 0x4b;  in get_mac()
295 	cc2520->mac_addr[3] = 0x00;  in get_mac()
297 	return cc2520->mac_addr;  in get_mac()
308 		return -EIO;  in cc2520_set_pan_id()
323 		return -EIO;  in cc2520_set_short_addr()
334 		return -EIO;  in cc2520_set_ieee_addr()
349 	const struct cc2520_config *cfg = dev->config;  in set_reset()
351 	gpio_pin_set_raw(cfg->reset.port, cfg->reset.pin, value);  in set_reset()
356 	const struct cc2520_config *cfg = dev->config;  in set_vreg_en()
358 	gpio_pin_set_raw(cfg->vreg_en.port, cfg->vreg_en.pin, value);  in set_vreg_en()
363 	const struct cc2520_config *cfg = dev->config;  in get_fifo()
365 	return gpio_pin_get_raw(cfg->fifo.port, cfg->fifo.pin);  in get_fifo()
370 	const struct cc2520_config *cfg = dev->config;  in get_fifop()
372 	return gpio_pin_get_raw(cfg->fifop.port, cfg->fifop.pin);  in get_fifop()
377 	const struct cc2520_config *cfg = dev->config;  in get_cca()
379 	return gpio_pin_get_raw(cfg->cca.port, cfg->cca.pin);  in get_cca()
388 	if (atomic_get(&cc2520->tx) == 1) {  in sfd_int_handler()
389 		atomic_set(&cc2520->tx, 0);  in sfd_int_handler()
390 		k_sem_give(&cc2520->tx_sync);  in sfd_int_handler()
400 	/* Note: Errata document - 1.2 */  in fifop_int_handler()
401 	if (!get_fifop(cc2520->dev) && !get_fifop(cc2520->dev)) {  in fifop_int_handler()
405 	if (!get_fifo(cc2520->dev)) {  in fifop_int_handler()
406 		cc2520->overflow = true;  in fifop_int_handler()
409 	k_sem_give(&cc2520->rx_lock);  in fifop_int_handler()
415 	const struct cc2520_config *cfg = dev->config;  in enable_fifop_interrupt()
418 	gpio_pin_interrupt_configure_dt(&cfg->fifop, mode);  in enable_fifop_interrupt()
424 	const struct cc2520_config *cfg = dev->config;  in enable_sfd_interrupt()
427 	gpio_pin_interrupt_configure_dt(&cfg->sfd, mode);  in enable_sfd_interrupt()
432 	const struct cc2520_config *cfg = dev->config;  in setup_gpio_callbacks()
433 	struct cc2520_context *cc2520 = dev->data;  in setup_gpio_callbacks()
435 	gpio_init_callback(&cc2520->sfd_cb, sfd_int_handler, BIT(cfg->sfd.pin));  in setup_gpio_callbacks()
436 	if (gpio_add_callback(cfg->sfd.port, &cc2520->sfd_cb) != 0) {  in setup_gpio_callbacks()
437 		return -EIO;  in setup_gpio_callbacks()
441 	gpio_init_callback(&cc2520->fifop_cb, fifop_int_handler, BIT(cfg->fifop.pin));  in setup_gpio_callbacks()
442 	if (gpio_add_callback(cfg->fifop.port, &cc2520->fifop_cb) != 0) {  in setup_gpio_callbacks()
443 		return -EIO;  in setup_gpio_callbacks()
484 		timeout--;  in verify_tx_done()
497 	/* Note: Errata document - 1.1 */  in flush_rxfifo()
523 	if (!z_cc2520_access(dev, true, CC2520_INS_RXBUF, 0, buf->data, len)) {  in read_rxfifo_content()
551 	 * lqi = (lqi - 50) * 4  in insert_radio_noise_details()
559 		lqi = (lqi - 50U) << 2;  in insert_radio_noise_details()
598 	struct cc2520_context *cc2520 = dev->data;  in cc2520_rx()
605 		k_sem_take(&cc2520->rx_lock, K_FOREVER);  in cc2520_rx()
607 		if (cc2520->overflow) {  in cc2520_rx()
609 			cc2520->overflow = false;  in cc2520_rx()
620 		pkt = net_pkt_rx_alloc_with_buffer(cc2520->iface, pkt_len,  in cc2520_rx()
628 			pkt_len -= 2U;  in cc2520_rx()
631 		if (!read_rxfifo_content(dev, pkt->buffer, pkt_len)) {  in cc2520_rx()
641 		if (ieee802154_handle_ack(cc2520->iface, pkt) == NET_OK) {  in cc2520_rx()
648 		if (net_recv_data(cc2520->iface, pkt) < 0) {  in cc2520_rx()
653 		log_stack_usage(&cc2520->cc2520_rx_thread);  in cc2520_rx()
680 		return -EBUSY;  in cc2520_cca()
691 		return -EINVAL;  in cc2520_set_channel()
695 		return -ENOTSUP;  in cc2520_set_channel()
699 	channel = 11 + (channel - 11) * 5U;  in cc2520_set_channel()
703 		return -EIO;  in cc2520_set_channel()
717 		return -ENOTSUP;  in cc2520_filter()
721 		return cc2520_set_ieee_addr(dev, filter->ieee_addr);  in cc2520_filter()
723 		return cc2520_set_short_addr(dev, filter->short_addr);  in cc2520_filter()
725 		return cc2520_set_pan_id(dev, filter->pan_id);  in cc2520_filter()
728 	return -ENOTSUP;  in cc2520_filter()
754 	case -2:  in cc2520_set_txpower()
757 	case -4:  in cc2520_set_txpower()
760 	case -7:  in cc2520_set_txpower()
763 	case -18:  in cc2520_set_txpower()
777 	return -EIO;  in cc2520_set_txpower()
785 	uint8_t *frame = frag->data;  in cc2520_tx()
786 	uint8_t len = frag->len;  in cc2520_tx()
787 	struct cc2520_context *cc2520 = dev->data;  in cc2520_tx()
793 		return -ENOTSUP;  in cc2520_tx()
811 	k_sem_take(&cc2520->access_lock, K_FOREVER);  in cc2520_tx()
816 		atomic_set(&cc2520->tx, 1);  in cc2520_tx()
817 		k_sem_init(&cc2520->tx_sync, 0, K_SEM_MAX_LIMIT);  in cc2520_tx()
825 		k_sem_take(&cc2520->tx_sync, K_MSEC(10));  in cc2520_tx()
827 		retry--;  in cc2520_tx()
832 	k_sem_give(&cc2520->access_lock);  in cc2520_tx()
841 	k_sem_give(&cc2520->access_lock);  in cc2520_tx()
847 	atomic_set(&cc2520->tx, 0);  in cc2520_tx()
850 	return -EIO;  in cc2520_tx()
859 		return -EIO;  in cc2520_start()
880 		return -EIO;  in cc2520_stop()
886 /* driver-allocated attribute memory - constant across all driver instances */
919 		return -EIO;  in power_on_and_setup()
934 		return -EIO;  in power_on_and_setup()
953 		return -EIO;  in power_on_and_setup()
960 		return -EIO;  in power_on_and_setup()
970 	const struct cc2520_config *cfg = dev->config;  in configure_gpios()
972 	if (!gpio_is_ready_dt(&cfg->vreg_en) ||  in configure_gpios()
973 	    !gpio_is_ready_dt(&cfg->reset) ||  in configure_gpios()
974 	    !gpio_is_ready_dt(&cfg->fifo) ||  in configure_gpios()
975 	    !gpio_is_ready_dt(&cfg->cca) ||  in configure_gpios()
976 	    !gpio_is_ready_dt(&cfg->sfd) ||  in configure_gpios()
977 	    !gpio_is_ready_dt(&cfg->fifop)) {  in configure_gpios()
978 		return -ENODEV;  in configure_gpios()
981 	gpio_pin_configure_dt(&cfg->vreg_en, GPIO_OUTPUT_LOW);  in configure_gpios()
982 	gpio_pin_configure_dt(&cfg->reset, GPIO_OUTPUT_LOW);  in configure_gpios()
983 	gpio_pin_configure_dt(&cfg->fifo, GPIO_INPUT);  in configure_gpios()
984 	gpio_pin_configure_dt(&cfg->cca, GPIO_INPUT);  in configure_gpios()
985 	gpio_pin_configure_dt(&cfg->sfd, GPIO_INPUT);  in configure_gpios()
986 	gpio_pin_configure_dt(&cfg->fifop, GPIO_INPUT);  in configure_gpios()
993 	const struct cc2520_config *cfg = dev->config;  in cc2520_init()
994 	struct cc2520_context *cc2520 = dev->data;  in cc2520_init()
996 	cc2520->dev = dev;  in cc2520_init()
998 	atomic_set(&cc2520->tx, 0);  in cc2520_init()
999 	k_sem_init(&cc2520->rx_lock, 0, K_SEM_MAX_LIMIT);  in cc2520_init()
1002 	k_sem_init(&cc2520->access_lock, 1, 1);  in cc2520_init()
1006 		LOG_ERR("Configuring GPIOS failed");  in cc2520_init()
1007 		return -EIO;  in cc2520_init()
1010 	if (!spi_is_ready_dt(&cfg->bus)) {  in cc2520_init()
1011 		LOG_ERR("SPI bus %s not ready", cfg->bus.bus->name);  in cc2520_init()
1012 		return -EIO;  in cc2520_init()
1019 		return -EIO;  in cc2520_init()
1022 	k_thread_create(&cc2520->cc2520_rx_thread, cc2520->cc2520_rx_stack,  in cc2520_init()
1026 	k_thread_name_set(&cc2520->cc2520_rx_thread, "cc2520_rx");  in cc2520_init()
1036 	struct cc2520_context *cc2520 = dev->data;  in cc2520_iface_init()
1041 	cc2520->iface = iface;  in cc2520_iface_init()
1051 	.cca = GPIO_DT_SPEC_INST_GET(0, cca_gpios),
1062 	.cca			= cc2520_cca,
1110 	const struct cc2520_config *cfg = dev->config;  in instruct_uccm_ccm()
1111 	struct cc2520_context *ctx = dev->data;  in instruct_uccm_ccm()
1142 	k_sem_take(&ctx->access_lock, K_FOREVER);  in instruct_uccm_ccm()
1144 	ret = spi_write_dt(&cfg->bus, &tx);  in instruct_uccm_ccm()
1146 	k_sem_give(&ctx->access_lock);  in instruct_uccm_ccm()
1159 	nonce[0] = 0 | (apkt->ad_len ? 0x40 : 0) | (m << 3) | 1;  in generate_nonce()
1163 	nonce[14] = (uint8_t)(apkt->pkt->in_len >> 8);  in generate_nonce()
1164 	nonce[15] = (uint8_t)(apkt->pkt->in_len);  in generate_nonce()
1174 	const struct device *cc2520 = ctx->device;  in insert_crypto_parameters()
1180 	if (!apkt->pkt->out_buf || !apkt->pkt->out_buf_max) {  in insert_crypto_parameters()
1182 		return -EINVAL;  in insert_crypto_parameters()
1185 	if (!ctx->key.bit_stream || !ctx->keylen) {  in insert_crypto_parameters()
1187 		return -EINVAL;  in insert_crypto_parameters()
1190 	if (!(ctx->flags & CAP_INPLACE_OPS)) {  in insert_crypto_parameters()
1191 		LOG_ERR("It supports only in-place operation");  in insert_crypto_parameters()
1192 		return -EINVAL;  in insert_crypto_parameters()
1195 	if (!apkt->ad || !apkt->ad_len) {  in insert_crypto_parameters()
1197 		return -EINVAL;  in insert_crypto_parameters()
1200 	if (apkt->pkt->in_buf && apkt->pkt->in_buf - apkt->ad_len != apkt->ad) {  in insert_crypto_parameters()
1201 		LOG_ERR("In-place needs ad and input in same memory");  in insert_crypto_parameters()
1202 		return -EINVAL;  in insert_crypto_parameters()
1205 	if (!apkt->pkt->in_buf) {  in insert_crypto_parameters()
1206 		if (!ctx->mode_params.ccm_info.tag_len) {  in insert_crypto_parameters()
1208 			return -EINVAL;  in insert_crypto_parameters()
1211 		in_buf = apkt->ad;  in insert_crypto_parameters()
1212 		in_len = apkt->ad_len;  in insert_crypto_parameters()
1218 		memcpy(in_buf, apkt->ad, apkt->ad_len);  in insert_crypto_parameters()
1219 		memcpy(in_buf + apkt->ad_len,  in insert_crypto_parameters()
1220 		       apkt->pkt->in_buf, apkt->pkt->in_len);  in insert_crypto_parameters()
1221 		in_len = apkt->ad_len + apkt->pkt->in_len;  in insert_crypto_parameters()
1223 		*auth_crypt = !apkt->tag ? apkt->pkt->in_len :  in insert_crypto_parameters()
1224 			apkt->pkt->in_len - ctx->mode_params.ccm_info.tag_len;  in insert_crypto_parameters()
1227 	if (ctx->mode_params.ccm_info.tag_len) {  in insert_crypto_parameters()
1228 		if ((ctx->mode_params.ccm_info.tag_len >> 2) > 3) {  in insert_crypto_parameters()
1231 			m = ctx->mode_params.ccm_info.tag_len >> 2;  in insert_crypto_parameters()
1238 		return -EIO;  in insert_crypto_parameters()
1242 	sys_memcpy_swap(data, ctx->key.bit_stream, ctx->keylen);  in insert_crypto_parameters()
1247 		return -EIO;  in insert_crypto_parameters()
1255 		return -EIO;  in insert_crypto_parameters()
1265 	const struct device *cc2520 = ctx->device;  in cc2520_crypto_ccm()
1269 	if (!apkt || !apkt->pkt) {  in cc2520_crypto_ccm()
1271 		return -EINVAL;  in cc2520_crypto_ccm()
1280 	apkt->pkt->out_len = apkt->pkt->in_len + apkt->ad_len +  in cc2520_crypto_ccm()
1281 		(m ? ctx->mode_params.ccm_info.tag_len : 0);  in cc2520_crypto_ccm()
1283 	if (apkt->pkt->out_len > apkt->pkt->out_buf_max) {  in cc2520_crypto_ccm()
1285 			    apkt->pkt->out_len, apkt->pkt->out_buf_max);  in cc2520_crypto_ccm()
1286 		return -ENOBUFS;  in cc2520_crypto_ccm()
1291 			       0x000, apkt->ad_len, m) ||  in cc2520_crypto_ccm()
1293 			      apkt->pkt->out_buf, apkt->pkt->out_len)) {  in cc2520_crypto_ccm()
1295 		return -EIO;  in cc2520_crypto_ccm()
1298 	if (apkt->tag) {  in cc2520_crypto_ccm()
1299 		memcpy(apkt->tag, apkt->pkt->out_buf + apkt->pkt->in_len,  in cc2520_crypto_ccm()
1300 					ctx->mode_params.ccm_info.tag_len);  in cc2520_crypto_ccm()
1310 	const struct device *cc2520 = ctx->device;  in cc2520_crypto_uccm()
1314 	if (!apkt || !apkt->pkt) {  in cc2520_crypto_uccm()
1316 		return -EINVAL;  in cc2520_crypto_uccm()
1319 	if (ctx->mode_params.ccm_info.tag_len && !apkt->tag) {  in cc2520_crypto_uccm()
1321 		return -EINVAL;  in cc2520_crypto_uccm()
1329 	apkt->pkt->out_len = apkt->pkt->in_len + apkt->ad_len;  in cc2520_crypto_uccm()
1333 			       0x000, apkt->ad_len, m) ||  in cc2520_crypto_uccm()
1335 			      apkt->pkt->out_buf, apkt->pkt->out_len)) {  in cc2520_crypto_uccm()
1337 		return -EIO;  in cc2520_crypto_uccm()
1342 		return -EBADMSG;  in cc2520_crypto_uccm()
1361 		return -EINVAL;  in cc2520_crypto_begin_session()
1364 	if (ctx->mode_params.ccm_info.nonce_len != 13U) {  in cc2520_crypto_begin_session()
1366 			    ctx->mode_params.ccm_info.nonce_len);  in cc2520_crypto_begin_session()
1367 		return -EINVAL;  in cc2520_crypto_begin_session()
1371 		ctx->ops.ccm_crypt_hndlr = cc2520_crypto_ccm;  in cc2520_crypto_begin_session()
1373 		ctx->ops.ccm_crypt_hndlr = cc2520_crypto_uccm;  in cc2520_crypto_begin_session()
1376 	ctx->ops.cipher_mode = mode;  in cc2520_crypto_begin_session()
1377 	ctx->device = dev;  in cc2520_crypto_begin_session()
1387 	ctx->ops.ccm_crypt_hndlr = NULL;  in cc2520_crypto_free_session()
1388 	ctx->device = NULL;  in cc2520_crypto_free_session()