1 /* ieee802154_cc1200.c - TI CC1200 driver */
8  * SPDX-License-Identifier: Apache-2.0
65 		LOG_DBG("Settling");  in cc1200_print_status()
80 	const struct cc1200_config *config = dev->config;  in z_cc1200_access_reg()
118 		return (spi_transceive_dt(&config->bus, &tx, &rx) == 0);  in z_cc1200_access_reg()
124 	return (spi_write_dt(&config->bus, &tx) == 0);  in z_cc1200_access_reg()
129 	struct cc1200_context *cc1200 = dev->data;  in get_mac()
132 	sys_rand_get(&cc1200->mac_addr[4], 4U);  in get_mac()
134 	cc1200->mac_addr[7] = (cc1200->mac_addr[7] & ~0x01) | 0x02;  in get_mac()
136 	cc1200->mac_addr[4] = CONFIG_IEEE802154_CC1200_MAC4;  in get_mac()
137 	cc1200->mac_addr[5] = CONFIG_IEEE802154_CC1200_MAC5;  in get_mac()
138 	cc1200->mac_addr[6] = CONFIG_IEEE802154_CC1200_MAC6;  in get_mac()
139 	cc1200->mac_addr[7] = CONFIG_IEEE802154_CC1200_MAC7;  in get_mac()
142 	cc1200->mac_addr[0] = 0x00;  in get_mac()
143 	cc1200->mac_addr[1] = 0x12;  in get_mac()
144 	cc1200->mac_addr[2] = 0x4b;  in get_mac()
145 	cc1200->mac_addr[3] = 0x00;  in get_mac()
147 	return cc1200->mac_addr;  in get_mac()
174 	if (atomic_get(&cc1200->tx) == 1) {  in gpio0_int_handler()
175 		if (atomic_get(&cc1200->tx_start) == 0) {  in gpio0_int_handler()
176 			atomic_set(&cc1200->tx_start, 1);  in gpio0_int_handler()
178 			atomic_set(&cc1200->tx, 0);  in gpio0_int_handler()
181 		k_sem_give(&cc1200->tx_sync);  in gpio0_int_handler()
183 		if (atomic_get(&cc1200->rx) == 1) {  in gpio0_int_handler()
184 			k_sem_give(&cc1200->rx_lock);  in gpio0_int_handler()
185 			atomic_set(&cc1200->rx, 0);  in gpio0_int_handler()
187 			atomic_set(&cc1200->rx, 1);  in gpio0_int_handler()
194 	const struct cc1200_config *cfg = dev->config;  in enable_gpio0_interrupt()
197 	gpio_pin_interrupt_configure_dt(&cfg->interrupt, mode);  in enable_gpio0_interrupt()
202 	const struct cc1200_config *cfg = dev->config;  in setup_gpio_callback()
203 	struct cc1200_context *cc1200 = dev->data;  in setup_gpio_callback()
205 	gpio_init_callback(&cc1200->rx_tx_cb, gpio0_int_handler, BIT(cfg->interrupt.pin));  in setup_gpio_callback()
207 	if (gpio_add_callback(cfg->interrupt.port, &cc1200->rx_tx_cb) != 0) {  in setup_gpio_callback()
208 		return -EIO;  in setup_gpio_callback()
237 /* See Section 9.12 - RF programming
258  * losing precision. A factor - growing as much as Xtal decrease -  is then
264  * pre-computed part or else.
268 	struct cc1200_context *ctx = dev->data;  in rf_evaluate_freq_setting()
275 	rf = ctx->rf_settings->chan_center_freq0 +  in rf_evaluate_freq_setting()
276 	     ((chan * (uint32_t)ctx->rf_settings->channel_spacing) / 10U);  in rf_evaluate_freq_setting()
309 		rf -= hz;  in rf_evaluate_freq_setting()
321 	struct cc1200_context *cc1200 = dev->data;  in rf_install_settings()
324 				 (void *)rf_settings->registers,  in rf_install_settings()
327 				 (uint8_t *)rf_settings->registers  in rf_install_settings()
335 	cc1200->rf_settings = rf_settings;  in rf_install_settings()
344 		return -EIO;  in rf_calibrate()
349 	/* We need to re-enable RX as SCAL shuts off the freq synth */  in rf_calibrate()
354 		return -EIO;  in rf_calibrate()
416 	if (!read_rxfifo(dev, buf->data, len) ||  in read_rxfifo_content()
453 	struct cc1200_context *cc1200 = dev->data;  in cc1200_rx()
460 		k_sem_take(&cc1200->rx_lock, K_FOREVER);  in cc1200_rx()
473 		pkt = net_pkt_rx_alloc_with_buffer(cc1200->iface, pkt_len,  in cc1200_rx()
480 		if (!read_rxfifo_content(dev, pkt->buffer, pkt_len)) {  in cc1200_rx()
490 		if (ieee802154_handle_ack(cc1200->iface, pkt) == NET_OK) {  in cc1200_rx()
497 		if (net_recv_data(cc1200->iface, pkt) < 0) {  in cc1200_rx()
502 		log_stack_usage(&cc1200->rx_thread);  in cc1200_rx()
528 	struct cc1200_context *cc1200 = dev->data;  in cc1200_cca()
530 	if (atomic_get(&cc1200->rx) == 0) {  in cc1200_cca()
541 	return -EBUSY;  in cc1200_cca()
546 	struct cc1200_context *cc1200 = dev->data;  in cc1200_set_channel()
550 	 * channel counts it doesn't make sense to validate (aka -EINVAL) a  in cc1200_set_channel()
554 		return -ENOTSUP;  in cc1200_set_channel()
565 	if (atomic_get(&cc1200->rx) != 0) {  in cc1200_set_channel()
566 		return -EIO;  in cc1200_set_channel()
574 		return -EIO;  in cc1200_set_channel()
587 	dbm = ((dbm + 18) * 2) - 1;  in cc1200_set_txpower()
590 		return -EINVAL;  in cc1200_set_txpower()
598 		return -EIO;  in cc1200_set_txpower()
609 	struct cc1200_context *cc1200 = dev->data;  in cc1200_tx()
610 	uint8_t *frame = frag->data;  in cc1200_tx()
611 	uint8_t len = frag->len;  in cc1200_tx()
616 		return -ENOTSUP;  in cc1200_tx()
623 	 * depending on len value, this will also take more time.  in cc1200_tx()
637 		LOG_ERR("Cannot fill-in TX fifo");  in cc1200_tx()
641 	atomic_set(&cc1200->tx, 1);  in cc1200_tx()
642 	atomic_set(&cc1200->tx_start, 0);  in cc1200_tx()
650 	k_sem_take(&cc1200->tx_sync, K_MSEC(100));  in cc1200_tx()
651 	if (atomic_get(&cc1200->tx_start) == 1) {  in cc1200_tx()
653 		k_sem_take(&cc1200->tx_sync, K_MSEC(100));  in cc1200_tx()
659 	if (atomic_get(&cc1200->tx) == 1 &&  in cc1200_tx()
663 		atomic_set(&cc1200->tx_start, 0);  in cc1200_tx()
670 	atomic_set(&cc1200->tx, 0);  in cc1200_tx()
675 	return status ? 0 : -EIO;  in cc1200_tx()
685 		return -EIO;  in cc1200_start()
701 		return -EIO;  in cc1200_stop()
707 /* driver-allocated attribute memory - constant across all driver instances as
730 		return -EIO;  in power_on_and_setup()
734 		return -EIO;  in power_on_and_setup()
741 		return -EIO;  in power_on_and_setup()
745 		return -EIO;  in power_on_and_setup()
753 	const struct cc1200_config *config = dev->config;  in cc1200_init()
754 	struct cc1200_context *cc1200 = dev->data;  in cc1200_init()
756 	atomic_set(&cc1200->tx, 0);  in cc1200_init()
757 	atomic_set(&cc1200->tx_start, 0);  in cc1200_init()
758 	atomic_set(&cc1200->rx, 0);  in cc1200_init()
759 	k_sem_init(&cc1200->rx_lock, 0, 1);  in cc1200_init()
760 	k_sem_init(&cc1200->tx_sync, 0, 1);  in cc1200_init()
763 	if (!gpio_is_ready_dt(&config->interrupt)) {  in cc1200_init()
765 			config->interrupt.port->name);  in cc1200_init()
766 		return -ENODEV;  in cc1200_init()
768 	gpio_pin_configure_dt(&config->interrupt, GPIO_INPUT);  in cc1200_init()
770 	if (!spi_is_ready_dt(&config->bus)) {  in cc1200_init()
771 		LOG_ERR("SPI bus %s is not ready", config->bus.bus->name);  in cc1200_init()
772 		return -ENODEV;  in cc1200_init()
778 		return -EIO;  in cc1200_init()
781 	k_thread_create(&cc1200->rx_thread, cc1200->rx_stack,  in cc1200_init()
785 	k_thread_name_set(&cc1200->rx_thread, "cc1200_rx");  in cc1200_init()
795 	struct cc1200_context *cc1200 = dev->data;  in cc1200_iface_init()
802 	cc1200->iface = iface;  in cc1200_iface_init()