1ce86893fSKarun Eagalapati /** 2ce86893fSKarun Eagalapati * Copyright (c) 2014 Redpine Signals Inc. 3ce86893fSKarun Eagalapati * 4ce86893fSKarun Eagalapati * Permission to use, copy, modify, and/or distribute this software for any 5ce86893fSKarun Eagalapati * purpose with or without fee is hereby granted, provided that the above 6ce86893fSKarun Eagalapati * copyright notice and this permission notice appear in all copies. 7ce86893fSKarun Eagalapati * 8ce86893fSKarun Eagalapati * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9ce86893fSKarun Eagalapati * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10ce86893fSKarun Eagalapati * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11ce86893fSKarun Eagalapati * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12ce86893fSKarun Eagalapati * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13ce86893fSKarun Eagalapati * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14ce86893fSKarun Eagalapati * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15ce86893fSKarun Eagalapati */ 16ce86893fSKarun Eagalapati 17ce86893fSKarun Eagalapati #include <linux/etherdevice.h> 18ce86893fSKarun Eagalapati #include <linux/if.h> 19ce86893fSKarun Eagalapati #include <linux/version.h> 20ce86893fSKarun Eagalapati #include "rsi_debugfs.h" 21ce86893fSKarun Eagalapati #include "rsi_mgmt.h" 22ce86893fSKarun Eagalapati #include "rsi_common.h" 23ce86893fSKarun Eagalapati #include "rsi_ps.h" 24ce86893fSKarun Eagalapati 25ce86893fSKarun Eagalapati char *str_psstate(enum ps_state state) 26ce86893fSKarun Eagalapati { 27ce86893fSKarun Eagalapati switch (state) { 28ce86893fSKarun Eagalapati case PS_NONE: 29ce86893fSKarun Eagalapati return "PS_NONE"; 30ce86893fSKarun Eagalapati case PS_DISABLE_REQ_SENT: 31ce86893fSKarun Eagalapati return "PS_DISABLE_REQ_SENT"; 32ce86893fSKarun Eagalapati case PS_ENABLE_REQ_SENT: 33ce86893fSKarun Eagalapati return "PS_ENABLE_REQ_SENT"; 34ce86893fSKarun Eagalapati case PS_ENABLED: 35ce86893fSKarun Eagalapati return "PS_ENABLED"; 36ce86893fSKarun Eagalapati default: 37ce86893fSKarun Eagalapati return "INVALID_STATE"; 38ce86893fSKarun Eagalapati } 39ce86893fSKarun Eagalapati return "INVALID_STATE"; 40ce86893fSKarun Eagalapati } 41ce86893fSKarun Eagalapati 42ce86893fSKarun Eagalapati static inline void rsi_modify_ps_state(struct rsi_hw *adapter, 43ce86893fSKarun Eagalapati enum ps_state nstate) 44ce86893fSKarun Eagalapati { 45ce86893fSKarun Eagalapati rsi_dbg(INFO_ZONE, "PS state changed %s => %s\n", 46ce86893fSKarun Eagalapati str_psstate(adapter->ps_state), 47ce86893fSKarun Eagalapati str_psstate(nstate)); 48ce86893fSKarun Eagalapati 49ce86893fSKarun Eagalapati adapter->ps_state = nstate; 50ce86893fSKarun Eagalapati } 51ce86893fSKarun Eagalapati 52ce86893fSKarun Eagalapati void rsi_default_ps_params(struct rsi_hw *adapter) 53ce86893fSKarun Eagalapati { 54ce86893fSKarun Eagalapati struct rsi_ps_info *ps_info = &adapter->ps_info; 55ce86893fSKarun Eagalapati 56ce86893fSKarun Eagalapati ps_info->enabled = true; 57ce86893fSKarun Eagalapati ps_info->sleep_type = RSI_SLEEP_TYPE_LP; 58ce86893fSKarun Eagalapati ps_info->tx_threshold = 0; 59ce86893fSKarun Eagalapati ps_info->rx_threshold = 0; 60ce86893fSKarun Eagalapati ps_info->tx_hysterisis = 0; 61ce86893fSKarun Eagalapati ps_info->rx_hysterisis = 0; 62ce86893fSKarun Eagalapati ps_info->monitor_interval = 0; 63ce86893fSKarun Eagalapati ps_info->listen_interval = RSI_DEF_LISTEN_INTERVAL; 64ce86893fSKarun Eagalapati ps_info->num_bcns_per_lis_int = 0; 65ce86893fSKarun Eagalapati ps_info->dtim_interval_duration = 0; 66ce86893fSKarun Eagalapati ps_info->num_dtims_per_sleep = 0; 67ce86893fSKarun Eagalapati ps_info->deep_sleep_wakeup_period = RSI_DEF_DS_WAKEUP_PERIOD; 68ce86893fSKarun Eagalapati } 69ce86893fSKarun Eagalapati 70ce86893fSKarun Eagalapati void rsi_enable_ps(struct rsi_hw *adapter) 71ce86893fSKarun Eagalapati { 72ce86893fSKarun Eagalapati if (adapter->ps_state != PS_NONE) { 73ce86893fSKarun Eagalapati rsi_dbg(ERR_ZONE, 74ce86893fSKarun Eagalapati "%s: Cannot accept enable PS in %s state\n", 75ce86893fSKarun Eagalapati __func__, str_psstate(adapter->ps_state)); 76ce86893fSKarun Eagalapati return; 77ce86893fSKarun Eagalapati } 78ce86893fSKarun Eagalapati 79ce86893fSKarun Eagalapati if (rsi_send_ps_request(adapter, true)) { 80ce86893fSKarun Eagalapati rsi_dbg(ERR_ZONE, 81ce86893fSKarun Eagalapati "%s: Failed to send PS request to device\n", 82ce86893fSKarun Eagalapati __func__); 83ce86893fSKarun Eagalapati return; 84ce86893fSKarun Eagalapati } 85ce86893fSKarun Eagalapati 86ce86893fSKarun Eagalapati rsi_modify_ps_state(adapter, PS_ENABLE_REQ_SENT); 87ce86893fSKarun Eagalapati } 88ce86893fSKarun Eagalapati 89ce86893fSKarun Eagalapati void rsi_disable_ps(struct rsi_hw *adapter) 90ce86893fSKarun Eagalapati { 91ce86893fSKarun Eagalapati if (adapter->ps_state != PS_ENABLED) { 92ce86893fSKarun Eagalapati rsi_dbg(ERR_ZONE, 93ce86893fSKarun Eagalapati "%s: Cannot accept disable PS in %s state\n", 94ce86893fSKarun Eagalapati __func__, str_psstate(adapter->ps_state)); 95ce86893fSKarun Eagalapati return; 96ce86893fSKarun Eagalapati } 97ce86893fSKarun Eagalapati 98ce86893fSKarun Eagalapati if (rsi_send_ps_request(adapter, false)) { 99ce86893fSKarun Eagalapati rsi_dbg(ERR_ZONE, 100ce86893fSKarun Eagalapati "%s: Failed to send PS request to device\n", 101ce86893fSKarun Eagalapati __func__); 102ce86893fSKarun Eagalapati return; 103ce86893fSKarun Eagalapati } 104ce86893fSKarun Eagalapati 105ce86893fSKarun Eagalapati rsi_modify_ps_state(adapter, PS_DISABLE_REQ_SENT); 106ce86893fSKarun Eagalapati } 107ce86893fSKarun Eagalapati 108db07971dSKarun Eagalapati void rsi_conf_uapsd(struct rsi_hw *adapter) 109db07971dSKarun Eagalapati { 110db07971dSKarun Eagalapati int ret; 111db07971dSKarun Eagalapati 112db07971dSKarun Eagalapati if (adapter->ps_state != PS_ENABLED) 113db07971dSKarun Eagalapati return; 114db07971dSKarun Eagalapati 115db07971dSKarun Eagalapati ret = rsi_send_ps_request(adapter, false); 116db07971dSKarun Eagalapati if (!ret) 117db07971dSKarun Eagalapati ret = rsi_send_ps_request(adapter, true); 118db07971dSKarun Eagalapati if (ret) 119db07971dSKarun Eagalapati rsi_dbg(ERR_ZONE, 120db07971dSKarun Eagalapati "%s: Failed to send PS request to device\n", 121db07971dSKarun Eagalapati __func__); 122db07971dSKarun Eagalapati } 123db07971dSKarun Eagalapati 124ce86893fSKarun Eagalapati int rsi_handle_ps_confirm(struct rsi_hw *adapter, u8 *msg) 125ce86893fSKarun Eagalapati { 126ce86893fSKarun Eagalapati u16 cfm_type = get_unaligned_le16(msg + PS_CONFIRM_INDEX); 127ce86893fSKarun Eagalapati 128ce86893fSKarun Eagalapati switch (cfm_type) { 129ce86893fSKarun Eagalapati case RSI_SLEEP_REQUEST: 130ce86893fSKarun Eagalapati if (adapter->ps_state == PS_ENABLE_REQ_SENT) 131ce86893fSKarun Eagalapati rsi_modify_ps_state(adapter, PS_ENABLED); 132ce86893fSKarun Eagalapati break; 133ce86893fSKarun Eagalapati case RSI_WAKEUP_REQUEST: 134ce86893fSKarun Eagalapati if (adapter->ps_state == PS_DISABLE_REQ_SENT) 135ce86893fSKarun Eagalapati rsi_modify_ps_state(adapter, PS_NONE); 136ce86893fSKarun Eagalapati break; 137ce86893fSKarun Eagalapati default: 138ce86893fSKarun Eagalapati rsi_dbg(ERR_ZONE, 139ce86893fSKarun Eagalapati "Invalid PS confirm type %x in state %s\n", 140ce86893fSKarun Eagalapati cfm_type, str_psstate(adapter->ps_state)); 141ce86893fSKarun Eagalapati return -1; 142ce86893fSKarun Eagalapati } 143ce86893fSKarun Eagalapati 144ce86893fSKarun Eagalapati return 0; 145ce86893fSKarun Eagalapati } 146db07971dSKarun Eagalapati 147