| Eugene Krasnikov | 8e84c25 | 2013-10-08 21:25:58 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com> |
| 3 | * |
| 4 | * Permission to use, copy, modify, and/or distribute this software for any |
| 5 | * purpose with or without fee is hereby granted, provided that the above |
| 6 | * copyright notice and this permission notice appear in all copies. |
| 7 | * |
| 8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| 11 | * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| 13 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| 14 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 15 | */ |
| 16 | |
| 17 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 18 | |
| 19 | #include "wcn36xx.h" |
| 20 | |
| 21 | int wcn36xx_pmc_enter_bmps_state(struct wcn36xx *wcn, |
| 22 | struct ieee80211_vif *vif) |
| 23 | { |
| 24 | int ret = 0; |
| 25 | struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv; |
| 26 | /* TODO: Make sure the TX chain clean */ |
| 27 | ret = wcn36xx_smd_enter_bmps(wcn, vif); |
| 28 | if (!ret) { |
| 29 | wcn36xx_dbg(WCN36XX_DBG_PMC, "Entered BMPS\n"); |
| 30 | vif_priv->pw_state = WCN36XX_BMPS; |
| 31 | } else { |
| 32 | /* |
| 33 | * One of the reasons why HW will not enter BMPS is because |
| 34 | * driver is trying to enter bmps before first beacon was |
| 35 | * received just after auth complete |
| 36 | */ |
| 37 | wcn36xx_err("Can not enter BMPS!\n"); |
| 38 | } |
| 39 | return ret; |
| 40 | } |
| 41 | |
| 42 | int wcn36xx_pmc_exit_bmps_state(struct wcn36xx *wcn, |
| 43 | struct ieee80211_vif *vif) |
| 44 | { |
| 45 | struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv; |
| 46 | |
| 47 | if (WCN36XX_BMPS != vif_priv->pw_state) { |
| 48 | wcn36xx_err("Not in BMPS mode, no need to exit from BMPS mode!\n"); |
| 49 | return -EINVAL; |
| 50 | } |
| 51 | wcn36xx_smd_exit_bmps(wcn, vif); |
| 52 | vif_priv->pw_state = WCN36XX_FULL_POWER; |
| 53 | return 0; |
| 54 | } |
| 55 | |
| 56 | int wcn36xx_enable_keep_alive_null_packet(struct wcn36xx *wcn, |
| 57 | struct ieee80211_vif *vif) |
| 58 | { |
| 59 | wcn36xx_dbg(WCN36XX_DBG_PMC, "%s\n", __func__); |
| 60 | return wcn36xx_smd_keep_alive_req(wcn, vif, |
| 61 | WCN36XX_HAL_KEEP_ALIVE_NULL_PKT); |
| 62 | } |