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bb9f8692 ZY |
1 | /* |
2 | * Intel Wireless Multicomm 3200 WiFi driver | |
3 | * | |
4 | * Copyright (C) 2009 Intel Corporation. All rights reserved. | |
5 | * | |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions | |
8 | * are met: | |
9 | * | |
10 | * * Redistributions of source code must retain the above copyright | |
11 | * notice, this list of conditions and the following disclaimer. | |
12 | * * Redistributions in binary form must reproduce the above copyright | |
13 | * notice, this list of conditions and the following disclaimer in | |
14 | * the documentation and/or other materials provided with the | |
15 | * distribution. | |
16 | * * Neither the name of Intel Corporation nor the names of its | |
17 | * contributors may be used to endorse or promote products derived | |
18 | * from this software without specific prior written permission. | |
19 | * | |
20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
24 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
26 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
30 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
31 | * | |
32 | * | |
33 | * Intel Corporation <ilw@linux.intel.com> | |
34 | * Samuel Ortiz <samuel.ortiz@intel.com> | |
35 | * Zhu Yi <yi.zhu@intel.com> | |
36 | * | |
37 | */ | |
38 | ||
39 | #include <linux/kernel.h> | |
40 | ||
41 | #include "iwm.h" | |
42 | #include "umac.h" | |
43 | #include "commands.h" | |
44 | #include "eeprom.h" | |
45 | ||
46 | static struct iwm_eeprom_entry eeprom_map[] = { | |
47 | [IWM_EEPROM_SIG] = | |
48 | {"Signature", IWM_EEPROM_SIG_OFF, IWM_EEPROM_SIG_LEN}, | |
49 | ||
50 | [IWM_EEPROM_VERSION] = | |
51 | {"Version", IWM_EEPROM_VERSION_OFF, IWM_EEPROM_VERSION_LEN}, | |
52 | ||
53 | [IWM_EEPROM_OEM_HW_VERSION] = | |
54 | {"OEM HW version", IWM_EEPROM_OEM_HW_VERSION_OFF, | |
55 | IWM_EEPROM_OEM_HW_VERSION_LEN}, | |
56 | ||
57 | [IWM_EEPROM_MAC_VERSION] = | |
58 | {"MAC version", IWM_EEPROM_MAC_VERSION_OFF, IWM_EEPROM_MAC_VERSION_LEN}, | |
59 | ||
60 | [IWM_EEPROM_CARD_ID] = | |
61 | {"Card ID", IWM_EEPROM_CARD_ID_OFF, IWM_EEPROM_CARD_ID_LEN}, | |
62 | ||
63 | [IWM_EEPROM_RADIO_CONF] = | |
64 | {"Radio config", IWM_EEPROM_RADIO_CONF_OFF, IWM_EEPROM_RADIO_CONF_LEN}, | |
65 | ||
66 | [IWM_EEPROM_SKU_CAP] = | |
67 | {"SKU capabilities", IWM_EEPROM_SKU_CAP_OFF, IWM_EEPROM_SKU_CAP_LEN}, | |
68 | ||
902b6667 SO |
69 | [IWM_EEPROM_FAT_CHANNELS_CAP] = |
70 | {"HT channels capabilities", IWM_EEPROM_FAT_CHANNELS_CAP_OFF, | |
71 | IWM_EEPROM_FAT_CHANNELS_CAP_LEN}, | |
72 | ||
bb9f8692 ZY |
73 | [IWM_EEPROM_CALIB_RXIQ_OFFSET] = |
74 | {"RX IQ offset", IWM_EEPROM_CALIB_RXIQ_OFF, IWM_EEPROM_INDIRECT_LEN}, | |
75 | ||
76 | [IWM_EEPROM_CALIB_RXIQ] = | |
77 | {"Calib RX IQ", 0, IWM_EEPROM_CALIB_RXIQ_LEN}, | |
78 | }; | |
79 | ||
80 | ||
81 | static int iwm_eeprom_read(struct iwm_priv *iwm, u8 eeprom_id) | |
82 | { | |
83 | int ret; | |
84 | u32 entry_size, chunk_size, data_offset = 0, addr_offset = 0; | |
85 | u32 addr; | |
86 | struct iwm_udma_wifi_cmd udma_cmd; | |
87 | struct iwm_umac_cmd umac_cmd; | |
88 | struct iwm_umac_cmd_eeprom_proxy eeprom_cmd; | |
89 | ||
90 | if (eeprom_id > (IWM_EEPROM_LAST - 1)) | |
91 | return -EINVAL; | |
92 | ||
93 | entry_size = eeprom_map[eeprom_id].length; | |
94 | ||
95 | if (eeprom_id >= IWM_EEPROM_INDIRECT_DATA) { | |
96 | /* indirect data */ | |
97 | u32 off_id = eeprom_id - IWM_EEPROM_INDIRECT_DATA + | |
98 | IWM_EEPROM_INDIRECT_OFFSET; | |
99 | ||
100 | eeprom_map[eeprom_id].offset = | |
101 | *(u16 *)(iwm->eeprom + eeprom_map[off_id].offset) << 1; | |
102 | } | |
103 | ||
104 | addr = eeprom_map[eeprom_id].offset; | |
105 | ||
106 | udma_cmd.eop = 1; | |
107 | udma_cmd.credit_group = 0x4; | |
108 | udma_cmd.ra_tid = UMAC_HDI_ACT_TBL_IDX_HOST_CMD; | |
109 | udma_cmd.lmac_offset = 0; | |
110 | ||
111 | umac_cmd.id = UMAC_CMD_OPCODE_EEPROM_PROXY; | |
112 | umac_cmd.resp = 1; | |
113 | ||
114 | while (entry_size > 0) { | |
115 | chunk_size = min_t(u32, entry_size, IWM_MAX_EEPROM_DATA_LEN); | |
116 | ||
117 | eeprom_cmd.hdr.type = | |
118 | cpu_to_le32(IWM_UMAC_CMD_EEPROM_TYPE_READ); | |
119 | eeprom_cmd.hdr.offset = cpu_to_le32(addr + addr_offset); | |
120 | eeprom_cmd.hdr.len = cpu_to_le32(chunk_size); | |
121 | ||
122 | ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, | |
123 | &umac_cmd, &eeprom_cmd, | |
124 | sizeof(struct iwm_umac_cmd_eeprom_proxy)); | |
125 | if (ret < 0) { | |
126 | IWM_ERR(iwm, "Couldn't read eeprom\n"); | |
127 | return ret; | |
128 | } | |
129 | ||
130 | ret = iwm_notif_handle(iwm, UMAC_CMD_OPCODE_EEPROM_PROXY, | |
131 | IWM_SRC_UMAC, 2*HZ); | |
132 | if (ret < 0) { | |
133 | IWM_ERR(iwm, "Did not get any eeprom answer\n"); | |
134 | return ret; | |
135 | } | |
136 | ||
137 | data_offset += chunk_size; | |
138 | addr_offset += chunk_size; | |
139 | entry_size -= chunk_size; | |
140 | } | |
141 | ||
142 | return 0; | |
143 | } | |
144 | ||
145 | u8 *iwm_eeprom_access(struct iwm_priv *iwm, u8 eeprom_id) | |
146 | { | |
147 | if (!iwm->eeprom) | |
148 | return ERR_PTR(-ENODEV); | |
149 | ||
150 | return iwm->eeprom + eeprom_map[eeprom_id].offset; | |
151 | } | |
152 | ||
902b6667 SO |
153 | int iwm_eeprom_fat_channels(struct iwm_priv *iwm) |
154 | { | |
155 | struct wiphy *wiphy = iwm_to_wiphy(iwm); | |
156 | struct ieee80211_supported_band *band; | |
157 | u16 *channels, i; | |
158 | ||
159 | channels = (u16 *)iwm_eeprom_access(iwm, IWM_EEPROM_FAT_CHANNELS_CAP); | |
160 | if (IS_ERR(channels)) | |
161 | return PTR_ERR(channels); | |
162 | ||
163 | band = wiphy->bands[IEEE80211_BAND_2GHZ]; | |
164 | band->ht_cap.ht_supported = true; | |
165 | ||
166 | for (i = 0; i < IWM_EEPROM_FAT_CHANNELS_24; i++) | |
167 | if (!(channels[i] & IWM_EEPROM_FAT_CHANNEL_ENABLED)) | |
168 | band->ht_cap.ht_supported = false; | |
169 | ||
170 | band = wiphy->bands[IEEE80211_BAND_5GHZ]; | |
171 | band->ht_cap.ht_supported = true; | |
172 | for (i = IWM_EEPROM_FAT_CHANNELS_24; i < IWM_EEPROM_FAT_CHANNELS; i++) | |
173 | if (!(channels[i] & IWM_EEPROM_FAT_CHANNEL_ENABLED)) | |
174 | band->ht_cap.ht_supported = false; | |
175 | ||
176 | return 0; | |
177 | } | |
178 | ||
bb9f8692 ZY |
179 | int iwm_eeprom_init(struct iwm_priv *iwm) |
180 | { | |
181 | int i, ret = 0; | |
182 | char name[32]; | |
183 | ||
184 | iwm->eeprom = kzalloc(IWM_EEPROM_LEN, GFP_KERNEL); | |
185 | if (!iwm->eeprom) | |
186 | return -ENOMEM; | |
187 | ||
188 | for (i = IWM_EEPROM_FIRST; i < IWM_EEPROM_LAST; i++) { | |
bb9f8692 ZY |
189 | ret = iwm_eeprom_read(iwm, i); |
190 | if (ret < 0) { | |
191 | IWM_ERR(iwm, "Couldn't read eeprom entry #%d: %s\n", | |
192 | i, eeprom_map[i].name); | |
193 | break; | |
194 | } | |
195 | } | |
196 | ||
197 | IWM_DBG_BOOT(iwm, DBG, "EEPROM dump:\n"); | |
198 | for (i = IWM_EEPROM_FIRST; i < IWM_EEPROM_LAST; i++) { | |
199 | memset(name, 0, 32); | |
200 | sprintf(name, "%s: ", eeprom_map[i].name); | |
201 | ||
202 | IWM_HEXDUMP(iwm, DBG, BOOT, name, | |
203 | iwm->eeprom + eeprom_map[i].offset, | |
204 | eeprom_map[i].length); | |
205 | } | |
206 | ||
207 | return ret; | |
208 | } | |
209 | ||
210 | void iwm_eeprom_exit(struct iwm_priv *iwm) | |
211 | { | |
212 | kfree(iwm->eeprom); | |
213 | } |