1 /**
2 * @file
3 * @brief Network Processor Initialization for SiWx91x.
4 *
5 * This file contains the initialization routine for the (ThreadArch) network processor
6 * on the SiWx91x platform. The component is responsible for setting up the necessary
7 * hardware and software components to enable network communication.
8 *
9 * Copyright (c) 2024 Silicon Laboratories Inc.
10 * SPDX-License-Identifier: Apache-2.0
11 */
12
13 #include <zephyr/kernel.h>
14
15 #include "sl_wifi.h"
16 #include "sl_wifi_callback_framework.h"
17 #ifdef CONFIG_BT_SILABS_SIWX91X
18 #include "rsi_ble_common_config.h"
19 #endif
20
siwg917_nwp_init(void)21 static int siwg917_nwp_init(void)
22 {
23 sl_wifi_device_configuration_t network_config = {
24 .boot_option = LOAD_NWP_FW,
25 .band = SL_SI91X_WIFI_BAND_2_4GHZ,
26 .region_code = DEFAULT_REGION,
27 .boot_config = {
28 .oper_mode = SL_SI91X_CLIENT_MODE,
29 .tcp_ip_feature_bit_map = SL_SI91X_TCP_IP_FEAT_EXTENSION_VALID,
30 .ext_tcp_ip_feature_bit_map = SL_SI91X_CONFIG_FEAT_EXTENSION_VALID,
31 .config_feature_bit_map = SL_SI91X_ENABLE_ENHANCED_MAX_PSP,
32 .custom_feature_bit_map = SL_SI91X_CUSTOM_FEAT_EXTENSION_VALID,
33 .ext_custom_feature_bit_map =
34 MEMORY_CONFIG |
35 SL_SI91X_EXT_FEAT_XTAL_CLK |
36 SL_SI91X_EXT_FEAT_FRONT_END_SWITCH_PINS_ULP_GPIO_4_5_0,
37 }
38 };
39 sl_si91x_boot_configuration_t *cfg = &network_config.boot_config;
40
41 if (IS_ENABLED(CONFIG_WIFI_SILABS_SIWX91X) && IS_ENABLED(CONFIG_BT_SILABS_SIWX91X)) {
42 cfg->coex_mode = SL_SI91X_WLAN_BLE_MODE;
43 } else if (IS_ENABLED(CONFIG_WIFI_SILABS_SIWX91X)) {
44 cfg->coex_mode = SL_SI91X_WLAN_ONLY_MODE;
45 } else if (IS_ENABLED(CONFIG_BT_SILABS_SIWX91X)) {
46 cfg->coex_mode = SL_SI91X_BLE_MODE;
47 } else {
48 /*
49 * Even if neither WiFi or BLE is used we have to specify a Coex mode
50 */
51 cfg->coex_mode = SL_SI91X_BLE_MODE;
52 }
53
54 #ifdef CONFIG_WIFI_SILABS_SIWX91X
55 cfg->feature_bit_map |= SL_SI91X_FEAT_SECURITY_OPEN | SL_SI91X_FEAT_WPS_DISABLE,
56 cfg->ext_custom_feature_bit_map |= SL_SI91X_EXT_FEAT_IEEE_80211W;
57 if (IS_ENABLED(CONFIG_WIFI_SILABS_SIWX91X_NET_STACK_OFFLOAD)) {
58 cfg->ext_tcp_ip_feature_bit_map |= SL_SI91X_EXT_TCP_IP_WINDOW_SCALING;
59 cfg->ext_tcp_ip_feature_bit_map |= SL_SI91X_EXT_TCP_IP_TOTAL_SELECTS(10);
60 cfg->tcp_ip_feature_bit_map |= SL_SI91X_TCP_IP_FEAT_ICMP;
61 if (IS_ENABLED(CONFIG_NET_IPV6)) {
62 cfg->tcp_ip_feature_bit_map |= SL_SI91X_TCP_IP_FEAT_DHCPV6_CLIENT;
63 cfg->tcp_ip_feature_bit_map |= SL_SI91X_TCP_IP_FEAT_IPV6;
64 }
65 if (IS_ENABLED(CONFIG_NET_IPV4)) {
66 cfg->tcp_ip_feature_bit_map |= SL_SI91X_TCP_IP_FEAT_DHCPV4_CLIENT;
67 }
68 } else {
69 cfg->tcp_ip_feature_bit_map |= SL_SI91X_TCP_IP_FEAT_BYPASS;
70 }
71 #endif
72
73 #ifdef CONFIG_BT_SILABS_SIWX91X
74 cfg->ext_custom_feature_bit_map |= SL_SI91X_EXT_FEAT_BT_CUSTOM_FEAT_ENABLE;
75 cfg->bt_feature_bit_map |= SL_SI91X_BT_RF_TYPE | SL_SI91X_ENABLE_BLE_PROTOCOL;
76 cfg->ble_feature_bit_map |= SL_SI91X_BLE_MAX_NBR_PERIPHERALS(RSI_BLE_MAX_NBR_PERIPHERALS) |
77 SL_SI91X_BLE_MAX_NBR_CENTRALS(RSI_BLE_MAX_NBR_CENTRALS) |
78 SL_SI91X_BLE_MAX_NBR_ATT_SERV(RSI_BLE_MAX_NBR_ATT_SERV) |
79 SL_SI91X_BLE_MAX_NBR_ATT_REC(RSI_BLE_MAX_NBR_ATT_REC) |
80 SL_SI91X_BLE_PWR_INX(RSI_BLE_PWR_INX) |
81 SL_SI91X_BLE_PWR_SAVE_OPTIONS(RSI_BLE_PWR_SAVE_OPTIONS) |
82 SL_SI91X_916_BLE_COMPATIBLE_FEAT_ENABLE |
83 SL_SI91X_FEAT_BLE_CUSTOM_FEAT_EXTENSION_VALID;
84 cfg->ble_ext_feature_bit_map |= SL_SI91X_BLE_NUM_CONN_EVENTS(RSI_BLE_NUM_CONN_EVENTS) |
85 SL_SI91X_BLE_NUM_REC_BYTES(RSI_BLE_NUM_REC_BYTES) |
86 SL_SI91X_BLE_ENABLE_ADV_EXTN |
87 SL_SI91X_BLE_AE_MAX_ADV_SETS(RSI_BLE_AE_MAX_ADV_SETS);
88 #endif
89
90 /* TODO: If sl_net_*_profile() functions will be needed for WiFi then call
91 * sl_net_set_profile() here. Currently these are unused.
92 */
93 return sl_wifi_init(&network_config, NULL, sl_wifi_default_event_handler);
94 }
95 SYS_INIT(siwg917_nwp_init, POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEVICE);
96
97 /* IRQn 74 is used for communication with co-processor */
98 Z_ISR_DECLARE(74, 0, IRQ074_Handler, 0);
99
100 /* Co-processor will use value stored in IVT to store its stack.
101 *
102 * FIXME: We can't use Z_ISR_DECLARE() to declare this entry
103 * FIXME: Allow to configure size of buffer
104 */
105 static uint8_t __aligned(8) siwg917_nwp_stack[10 * 1024];
106 static Z_DECL_ALIGN(struct _isr_list) Z_GENERIC_SECTION(.intList)
107 __used __isr_siwg917_coprocessor_stack_irq = {
108 .irq = 30,
109 .flags = ISR_FLAG_DIRECT,
110 .func = &siwg917_nwp_stack[sizeof(siwg917_nwp_stack) - 1],
111 };
112
