Loading...
1/*
2 * Copyright (c) 2014 Redpine Signals Inc.
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
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#include <linux/etherdevice.h>
18#include <linux/if.h>
19#include "rsi_debugfs.h"
20#include "rsi_mgmt.h"
21#include "rsi_common.h"
22#include "rsi_ps.h"
23
24char *str_psstate(enum ps_state state)
25{
26 switch (state) {
27 case PS_NONE:
28 return "PS_NONE";
29 case PS_DISABLE_REQ_SENT:
30 return "PS_DISABLE_REQ_SENT";
31 case PS_ENABLE_REQ_SENT:
32 return "PS_ENABLE_REQ_SENT";
33 case PS_ENABLED:
34 return "PS_ENABLED";
35 default:
36 return "INVALID_STATE";
37 }
38}
39
40static inline void rsi_modify_ps_state(struct rsi_hw *adapter,
41 enum ps_state nstate)
42{
43 rsi_dbg(INFO_ZONE, "PS state changed %s => %s\n",
44 str_psstate(adapter->ps_state),
45 str_psstate(nstate));
46
47 adapter->ps_state = nstate;
48}
49
50void rsi_default_ps_params(struct rsi_hw *adapter)
51{
52 struct rsi_ps_info *ps_info = &adapter->ps_info;
53
54 ps_info->enabled = true;
55 ps_info->sleep_type = RSI_SLEEP_TYPE_LP;
56 ps_info->tx_threshold = 0;
57 ps_info->rx_threshold = 0;
58 ps_info->tx_hysterisis = 0;
59 ps_info->rx_hysterisis = 0;
60 ps_info->monitor_interval = 0;
61 ps_info->listen_interval = RSI_DEF_LISTEN_INTERVAL;
62 ps_info->num_bcns_per_lis_int = 0;
63 ps_info->dtim_interval_duration = 0;
64 ps_info->num_dtims_per_sleep = 0;
65 ps_info->deep_sleep_wakeup_period = RSI_DEF_DS_WAKEUP_PERIOD;
66}
67
68void rsi_enable_ps(struct rsi_hw *adapter, struct ieee80211_vif *vif)
69{
70 if (adapter->ps_state != PS_NONE) {
71 rsi_dbg(ERR_ZONE,
72 "%s: Cannot accept enable PS in %s state\n",
73 __func__, str_psstate(adapter->ps_state));
74 return;
75 }
76
77 if (rsi_send_ps_request(adapter, true, vif)) {
78 rsi_dbg(ERR_ZONE,
79 "%s: Failed to send PS request to device\n",
80 __func__);
81 return;
82 }
83
84 rsi_modify_ps_state(adapter, PS_ENABLE_REQ_SENT);
85}
86
87/* This function is used to disable power save */
88void rsi_disable_ps(struct rsi_hw *adapter, struct ieee80211_vif *vif)
89{
90 if (adapter->ps_state != PS_ENABLED) {
91 rsi_dbg(ERR_ZONE,
92 "%s: Cannot accept disable PS in %s state\n",
93 __func__, str_psstate(adapter->ps_state));
94 return;
95 }
96
97 if (rsi_send_ps_request(adapter, false, vif)) {
98 rsi_dbg(ERR_ZONE,
99 "%s: Failed to send PS request to device\n",
100 __func__);
101 return;
102 }
103
104 rsi_modify_ps_state(adapter, PS_DISABLE_REQ_SENT);
105}
106
107void rsi_conf_uapsd(struct rsi_hw *adapter, struct ieee80211_vif *vif)
108{
109 int ret;
110
111 if (adapter->ps_state != PS_ENABLED)
112 return;
113
114 ret = rsi_send_ps_request(adapter, false, vif);
115 if (!ret)
116 ret = rsi_send_ps_request(adapter, true, vif);
117 if (ret)
118 rsi_dbg(ERR_ZONE,
119 "%s: Failed to send PS request to device\n",
120 __func__);
121}
122
123int rsi_handle_ps_confirm(struct rsi_hw *adapter, u8 *msg)
124{
125 u16 cfm_type = get_unaligned_le16(msg + PS_CONFIRM_INDEX);
126
127 switch (cfm_type) {
128 case RSI_SLEEP_REQUEST:
129 if (adapter->ps_state == PS_ENABLE_REQ_SENT)
130 rsi_modify_ps_state(adapter, PS_ENABLED);
131 break;
132 case RSI_WAKEUP_REQUEST:
133 if (adapter->ps_state == PS_DISABLE_REQ_SENT)
134 rsi_modify_ps_state(adapter, PS_NONE);
135 break;
136 default:
137 rsi_dbg(ERR_ZONE,
138 "Invalid PS confirm type %x in state %s\n",
139 cfm_type, str_psstate(adapter->ps_state));
140 return -1;
141 }
142
143 return 0;
144}
145
1/*
2 * Copyright (c) 2014 Redpine Signals Inc.
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
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#include <linux/etherdevice.h>
18#include <linux/if.h>
19#include "rsi_debugfs.h"
20#include "rsi_mgmt.h"
21#include "rsi_common.h"
22#include "rsi_ps.h"
23
24char *str_psstate(enum ps_state state)
25{
26 switch (state) {
27 case PS_NONE:
28 return "PS_NONE";
29 case PS_DISABLE_REQ_SENT:
30 return "PS_DISABLE_REQ_SENT";
31 case PS_ENABLE_REQ_SENT:
32 return "PS_ENABLE_REQ_SENT";
33 case PS_ENABLED:
34 return "PS_ENABLED";
35 default:
36 return "INVALID_STATE";
37 }
38}
39
40static inline void rsi_modify_ps_state(struct rsi_hw *adapter,
41 enum ps_state nstate)
42{
43 rsi_dbg(INFO_ZONE, "PS state changed %s => %s\n",
44 str_psstate(adapter->ps_state),
45 str_psstate(nstate));
46
47 adapter->ps_state = nstate;
48}
49
50void rsi_default_ps_params(struct rsi_hw *adapter)
51{
52 struct rsi_ps_info *ps_info = &adapter->ps_info;
53
54 ps_info->enabled = true;
55 ps_info->sleep_type = RSI_SLEEP_TYPE_LP;
56 ps_info->tx_threshold = 0;
57 ps_info->rx_threshold = 0;
58 ps_info->tx_hysterisis = 0;
59 ps_info->rx_hysterisis = 0;
60 ps_info->monitor_interval = 0;
61 ps_info->listen_interval = RSI_DEF_LISTEN_INTERVAL;
62 ps_info->num_bcns_per_lis_int = 0;
63 ps_info->dtim_interval_duration = 0;
64 ps_info->num_dtims_per_sleep = 0;
65 ps_info->deep_sleep_wakeup_period = RSI_DEF_DS_WAKEUP_PERIOD;
66}
67
68void rsi_enable_ps(struct rsi_hw *adapter, struct ieee80211_vif *vif)
69{
70 if (adapter->ps_state != PS_NONE) {
71 rsi_dbg(ERR_ZONE,
72 "%s: Cannot accept enable PS in %s state\n",
73 __func__, str_psstate(adapter->ps_state));
74 return;
75 }
76
77 if (rsi_send_ps_request(adapter, true, vif)) {
78 rsi_dbg(ERR_ZONE,
79 "%s: Failed to send PS request to device\n",
80 __func__);
81 return;
82 }
83
84 rsi_modify_ps_state(adapter, PS_ENABLE_REQ_SENT);
85}
86
87/* This function is used to disable power save */
88void rsi_disable_ps(struct rsi_hw *adapter, struct ieee80211_vif *vif)
89{
90 if (adapter->ps_state != PS_ENABLED) {
91 rsi_dbg(ERR_ZONE,
92 "%s: Cannot accept disable PS in %s state\n",
93 __func__, str_psstate(adapter->ps_state));
94 return;
95 }
96
97 if (rsi_send_ps_request(adapter, false, vif)) {
98 rsi_dbg(ERR_ZONE,
99 "%s: Failed to send PS request to device\n",
100 __func__);
101 return;
102 }
103
104 rsi_modify_ps_state(adapter, PS_DISABLE_REQ_SENT);
105}
106
107void rsi_conf_uapsd(struct rsi_hw *adapter, struct ieee80211_vif *vif)
108{
109 int ret;
110
111 if (adapter->ps_state != PS_ENABLED)
112 return;
113
114 ret = rsi_send_ps_request(adapter, false, vif);
115 if (!ret)
116 ret = rsi_send_ps_request(adapter, true, vif);
117 if (ret)
118 rsi_dbg(ERR_ZONE,
119 "%s: Failed to send PS request to device\n",
120 __func__);
121}
122
123int rsi_handle_ps_confirm(struct rsi_hw *adapter, u8 *msg)
124{
125 u16 cfm_type = get_unaligned_le16(msg + PS_CONFIRM_INDEX);
126
127 switch (cfm_type) {
128 case RSI_SLEEP_REQUEST:
129 if (adapter->ps_state == PS_ENABLE_REQ_SENT)
130 rsi_modify_ps_state(adapter, PS_ENABLED);
131 break;
132 case RSI_WAKEUP_REQUEST:
133 if (adapter->ps_state == PS_DISABLE_REQ_SENT)
134 rsi_modify_ps_state(adapter, PS_NONE);
135 break;
136 default:
137 rsi_dbg(ERR_ZONE,
138 "Invalid PS confirm type %x in state %s\n",
139 cfm_type, str_psstate(adapter->ps_state));
140 return -1;
141 }
142
143 return 0;
144}
145