| /* |
| ************************************************************************** |
| * Copyright (c) 2018-2020, The Linux Foundation. All rights reserved. |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all copies. |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
| * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| ************************************************************************** |
| */ |
| |
| /* |
| * nss_c2c_rx.c |
| * NSS C2C_RX APIs |
| */ |
| |
| #include <nss_hal.h> |
| #include "nss_c2c_rx_stats.h" |
| #include "nss_c2c_rx_strings.h" |
| |
| /* |
| * nss_c2c_rx_verify_if_num() |
| * Verify if_num passed to us. |
| */ |
| static bool nss_c2c_rx_verify_if_num(uint32_t if_num) |
| { |
| return if_num == NSS_C2C_RX_INTERFACE; |
| } |
| |
| /* |
| * nss_c2c_rx_interface_handler() |
| * Handle NSS -> HLOS messages for C2C_RX Statistics |
| */ |
| static void nss_c2c_rx_interface_handler(struct nss_ctx_instance *nss_ctx, |
| struct nss_cmn_msg *ncm, __attribute__((unused))void *app_data) |
| { |
| struct nss_c2c_rx_msg *ncrm = (struct nss_c2c_rx_msg *)ncm; |
| nss_c2c_rx_msg_callback_t cb; |
| |
| if (!nss_c2c_rx_verify_if_num(ncm->interface)) { |
| nss_warning("%px: invalid interface %d for c2c_tx\n", nss_ctx, ncm->interface); |
| return; |
| } |
| |
| /* |
| * Is this a valid request/response packet? |
| */ |
| if (ncm->type >= NSS_C2C_RX_MSG_TYPE_MAX) { |
| nss_warning("%px: received invalid message %d for c2c_rx", nss_ctx, ncm->type); |
| return; |
| } |
| |
| if (nss_cmn_get_msg_len(ncm) > sizeof(struct nss_c2c_rx_msg)) { |
| nss_warning("%px: Length of message is greater than required: %d", nss_ctx, nss_cmn_get_msg_len(ncm)); |
| return; |
| } |
| |
| /* |
| * Log failures |
| */ |
| nss_core_log_msg_failures(nss_ctx, ncm); |
| |
| switch (ncrm->cm.type) { |
| case NSS_C2C_RX_MSG_TYPE_STATS: |
| /* |
| * Update driver statistics and send statistics notifications to the registered modules. |
| */ |
| nss_c2c_rx_stats_sync(nss_ctx, &ncrm->msg.stats); |
| nss_c2c_rx_stats_notify(nss_ctx); |
| break; |
| } |
| |
| /* |
| * Update the callback and app_data for NOTIFY messages |
| * TODO: Add notify callbacks for c2c_rx |
| */ |
| if (ncm->response == NSS_CMN_RESPONSE_NOTIFY) { |
| return; |
| } |
| |
| /* |
| * Do we have a callback? |
| */ |
| if (!ncm->cb) { |
| return; |
| } |
| |
| /* |
| * callback |
| */ |
| cb = (nss_c2c_rx_msg_callback_t)ncm->cb; |
| cb((void *)ncm->app_data, ncrm); |
| } |
| |
| /* |
| * nss_c2c_rx_register_handler() |
| * Register handler for messaging |
| */ |
| void nss_c2c_rx_register_handler(struct nss_ctx_instance *nss_ctx) |
| { |
| nss_core_register_handler(nss_ctx, NSS_C2C_RX_INTERFACE, nss_c2c_rx_interface_handler, NULL); |
| |
| if (nss_ctx->id == NSS_CORE_0) { |
| nss_c2c_rx_stats_dentry_create(); |
| } |
| nss_c2c_rx_strings_dentry_create(); |
| } |
| EXPORT_SYMBOL(nss_c2c_rx_register_handler); |