xref: /openbmc/linux/drivers/net/wireless/ti/wl18xx/acx.c (revision e23feb16)
1 /*
2  * This file is part of wl18xx
3  *
4  * Copyright (C) 2011 Texas Instruments Inc.
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * version 2 as published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope that it will be useful, but
11  * WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18  * 02110-1301 USA
19  *
20  */
21 
22 #include "../wlcore/cmd.h"
23 #include "../wlcore/debug.h"
24 #include "../wlcore/acx.h"
25 
26 #include "acx.h"
27 
28 int wl18xx_acx_host_if_cfg_bitmap(struct wl1271 *wl, u32 host_cfg_bitmap,
29 				  u32 sdio_blk_size, u32 extra_mem_blks,
30 				  u32 len_field_size)
31 {
32 	struct wl18xx_acx_host_config_bitmap *bitmap_conf;
33 	int ret;
34 
35 	wl1271_debug(DEBUG_ACX, "acx cfg bitmap %d blk %d spare %d field %d",
36 		     host_cfg_bitmap, sdio_blk_size, extra_mem_blks,
37 		     len_field_size);
38 
39 	bitmap_conf = kzalloc(sizeof(*bitmap_conf), GFP_KERNEL);
40 	if (!bitmap_conf) {
41 		ret = -ENOMEM;
42 		goto out;
43 	}
44 
45 	bitmap_conf->host_cfg_bitmap = cpu_to_le32(host_cfg_bitmap);
46 	bitmap_conf->host_sdio_block_size = cpu_to_le32(sdio_blk_size);
47 	bitmap_conf->extra_mem_blocks = cpu_to_le32(extra_mem_blks);
48 	bitmap_conf->length_field_size = cpu_to_le32(len_field_size);
49 
50 	ret = wl1271_cmd_configure(wl, ACX_HOST_IF_CFG_BITMAP,
51 				   bitmap_conf, sizeof(*bitmap_conf));
52 	if (ret < 0) {
53 		wl1271_warning("wl1271 bitmap config opt failed: %d", ret);
54 		goto out;
55 	}
56 
57 out:
58 	kfree(bitmap_conf);
59 
60 	return ret;
61 }
62 
63 int wl18xx_acx_set_checksum_state(struct wl1271 *wl)
64 {
65 	struct wl18xx_acx_checksum_state *acx;
66 	int ret;
67 
68 	wl1271_debug(DEBUG_ACX, "acx checksum state");
69 
70 	acx = kzalloc(sizeof(*acx), GFP_KERNEL);
71 	if (!acx) {
72 		ret = -ENOMEM;
73 		goto out;
74 	}
75 
76 	acx->checksum_state = CHECKSUM_OFFLOAD_ENABLED;
77 
78 	ret = wl1271_cmd_configure(wl, ACX_CSUM_CONFIG, acx, sizeof(*acx));
79 	if (ret < 0) {
80 		wl1271_warning("failed to set Tx checksum state: %d", ret);
81 		goto out;
82 	}
83 
84 out:
85 	kfree(acx);
86 	return ret;
87 }
88 
89 int wl18xx_acx_clear_statistics(struct wl1271 *wl)
90 {
91 	struct wl18xx_acx_clear_statistics *acx;
92 	int ret = 0;
93 
94 	wl1271_debug(DEBUG_ACX, "acx clear statistics");
95 
96 	acx = kzalloc(sizeof(*acx), GFP_KERNEL);
97 	if (!acx) {
98 		ret = -ENOMEM;
99 		goto out;
100 	}
101 
102 	ret = wl1271_cmd_configure(wl, ACX_CLEAR_STATISTICS, acx, sizeof(*acx));
103 	if (ret < 0) {
104 		wl1271_warning("failed to clear firmware statistics: %d", ret);
105 		goto out;
106 	}
107 
108 out:
109 	kfree(acx);
110 	return ret;
111 }
112 
113 int wl18xx_acx_peer_ht_operation_mode(struct wl1271 *wl, u8 hlid, bool wide)
114 {
115 	struct wlcore_peer_ht_operation_mode *acx;
116 	int ret;
117 
118 	wl1271_debug(DEBUG_ACX, "acx peer ht operation mode hlid %d bw %d",
119 		     hlid, wide);
120 
121 	acx = kzalloc(sizeof(*acx), GFP_KERNEL);
122 	if (!acx) {
123 		ret = -ENOMEM;
124 		goto out;
125 	}
126 
127 	acx->hlid = hlid;
128 	acx->bandwidth = wide ? WLCORE_BANDWIDTH_40MHZ : WLCORE_BANDWIDTH_20MHZ;
129 
130 	ret = wl1271_cmd_configure(wl, ACX_PEER_HT_OPERATION_MODE_CFG, acx,
131 				   sizeof(*acx));
132 
133 	if (ret < 0) {
134 		wl1271_warning("acx peer ht operation mode failed: %d", ret);
135 		goto out;
136 	}
137 
138 out:
139 	kfree(acx);
140 	return ret;
141 
142 }
143 
144 /*
145  * this command is basically the same as wl1271_acx_ht_capabilities,
146  * with the addition of supported rates. they should be unified in
147  * the next fw api change
148  */
149 int wl18xx_acx_set_peer_cap(struct wl1271 *wl,
150 			    struct ieee80211_sta_ht_cap *ht_cap,
151 			    bool allow_ht_operation,
152 			    u32 rate_set, u8 hlid)
153 {
154 	struct wlcore_acx_peer_cap *acx;
155 	int ret = 0;
156 	u32 ht_capabilites = 0;
157 
158 	wl1271_debug(DEBUG_ACX,
159 		     "acx set cap ht_supp: %d ht_cap: %d rates: 0x%x",
160 		     ht_cap->ht_supported, ht_cap->cap, rate_set);
161 
162 	acx = kzalloc(sizeof(*acx), GFP_KERNEL);
163 	if (!acx) {
164 		ret = -ENOMEM;
165 		goto out;
166 	}
167 
168 	if (allow_ht_operation && ht_cap->ht_supported) {
169 		/* no need to translate capabilities - use the spec values */
170 		ht_capabilites = ht_cap->cap;
171 
172 		/*
173 		 * this bit is not employed by the spec but only by FW to
174 		 * indicate peer HT support
175 		 */
176 		ht_capabilites |= WL12XX_HT_CAP_HT_OPERATION;
177 
178 		/* get data from A-MPDU parameters field */
179 		acx->ampdu_max_length = ht_cap->ampdu_factor;
180 		acx->ampdu_min_spacing = ht_cap->ampdu_density;
181 	}
182 
183 	acx->hlid = hlid;
184 	acx->ht_capabilites = cpu_to_le32(ht_capabilites);
185 	acx->supported_rates = cpu_to_le32(rate_set);
186 
187 	ret = wl1271_cmd_configure(wl, ACX_PEER_CAP, acx, sizeof(*acx));
188 	if (ret < 0) {
189 		wl1271_warning("acx ht capabilities setting failed: %d", ret);
190 		goto out;
191 	}
192 
193 out:
194 	kfree(acx);
195 	return ret;
196 }
197