2 * Intel Wireless Multicomm 3200 WiFi driver
4 * Copyright (C) 2009 Intel Corporation. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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
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.
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.
33 * Intel Corporation <ilw@linux.intel.com>
34 * Samuel Ortiz <samuel.ortiz@intel.com>
35 * Zhu Yi <yi.zhu@intel.com>
39 #include <linux/kernel.h>
46 static struct iwm_eeprom_entry eeprom_map[] = {
48 {"Signature", IWM_EEPROM_SIG_OFF, IWM_EEPROM_SIG_LEN},
50 [IWM_EEPROM_VERSION] =
51 {"Version", IWM_EEPROM_VERSION_OFF, IWM_EEPROM_VERSION_LEN},
53 [IWM_EEPROM_OEM_HW_VERSION] =
54 {"OEM HW version", IWM_EEPROM_OEM_HW_VERSION_OFF,
55 IWM_EEPROM_OEM_HW_VERSION_LEN},
57 [IWM_EEPROM_MAC_VERSION] =
58 {"MAC version", IWM_EEPROM_MAC_VERSION_OFF, IWM_EEPROM_MAC_VERSION_LEN},
60 [IWM_EEPROM_CARD_ID] =
61 {"Card ID", IWM_EEPROM_CARD_ID_OFF, IWM_EEPROM_CARD_ID_LEN},
63 [IWM_EEPROM_RADIO_CONF] =
64 {"Radio config", IWM_EEPROM_RADIO_CONF_OFF, IWM_EEPROM_RADIO_CONF_LEN},
66 [IWM_EEPROM_SKU_CAP] =
67 {"SKU capabilities", IWM_EEPROM_SKU_CAP_OFF, IWM_EEPROM_SKU_CAP_LEN},
69 [IWM_EEPROM_FAT_CHANNELS_CAP] =
70 {"HT channels capabilities", IWM_EEPROM_FAT_CHANNELS_CAP_OFF,
71 IWM_EEPROM_FAT_CHANNELS_CAP_LEN},
73 [IWM_EEPROM_CALIB_RXIQ_OFFSET] =
74 {"RX IQ offset", IWM_EEPROM_CALIB_RXIQ_OFF, IWM_EEPROM_INDIRECT_LEN},
76 [IWM_EEPROM_CALIB_RXIQ] =
77 {"Calib RX IQ", 0, IWM_EEPROM_CALIB_RXIQ_LEN},
81 static int iwm_eeprom_read(struct iwm_priv *iwm, u8 eeprom_id)
84 u32 entry_size, chunk_size, data_offset = 0, addr_offset = 0;
86 struct iwm_udma_wifi_cmd udma_cmd;
87 struct iwm_umac_cmd umac_cmd;
88 struct iwm_umac_cmd_eeprom_proxy eeprom_cmd;
90 if (eeprom_id > (IWM_EEPROM_LAST - 1))
93 entry_size = eeprom_map[eeprom_id].length;
95 if (eeprom_id >= IWM_EEPROM_INDIRECT_DATA) {
97 u32 off_id = eeprom_id - IWM_EEPROM_INDIRECT_DATA +
98 IWM_EEPROM_INDIRECT_OFFSET;
100 eeprom_map[eeprom_id].offset =
101 *(u16 *)(iwm->eeprom + eeprom_map[off_id].offset) << 1;
104 addr = eeprom_map[eeprom_id].offset;
107 udma_cmd.credit_group = 0x4;
108 udma_cmd.ra_tid = UMAC_HDI_ACT_TBL_IDX_HOST_CMD;
109 udma_cmd.lmac_offset = 0;
111 umac_cmd.id = UMAC_CMD_OPCODE_EEPROM_PROXY;
114 while (entry_size > 0) {
115 chunk_size = min_t(u32, entry_size, IWM_MAX_EEPROM_DATA_LEN);
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);
122 ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd,
123 &umac_cmd, &eeprom_cmd,
124 sizeof(struct iwm_umac_cmd_eeprom_proxy));
126 IWM_ERR(iwm, "Couldn't read eeprom\n");
130 ret = iwm_notif_handle(iwm, UMAC_CMD_OPCODE_EEPROM_PROXY,
133 IWM_ERR(iwm, "Did not get any eeprom answer\n");
137 data_offset += chunk_size;
138 addr_offset += chunk_size;
139 entry_size -= chunk_size;
145 u8 *iwm_eeprom_access(struct iwm_priv *iwm, u8 eeprom_id)
148 return ERR_PTR(-ENODEV);
150 return iwm->eeprom + eeprom_map[eeprom_id].offset;
153 int iwm_eeprom_fat_channels(struct iwm_priv *iwm)
155 struct wiphy *wiphy = iwm_to_wiphy(iwm);
156 struct ieee80211_supported_band *band;
159 channels = (u16 *)iwm_eeprom_access(iwm, IWM_EEPROM_FAT_CHANNELS_CAP);
160 if (IS_ERR(channels))
161 return PTR_ERR(channels);
163 band = wiphy->bands[IEEE80211_BAND_2GHZ];
164 band->ht_cap.ht_supported = true;
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;
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;
179 u32 iwm_eeprom_wireless_mode(struct iwm_priv *iwm)
182 u32 wireless_mode = 0;
184 sku_cap = *((u16 *)iwm_eeprom_access(iwm, IWM_EEPROM_SKU_CAP));
186 if (sku_cap & IWM_EEPROM_SKU_CAP_BAND_24GHZ)
187 wireless_mode |= WIRELESS_MODE_11G;
189 if (sku_cap & IWM_EEPROM_SKU_CAP_BAND_52GHZ)
190 wireless_mode |= WIRELESS_MODE_11A;
192 if (sku_cap & IWM_EEPROM_SKU_CAP_11N_ENABLE)
193 wireless_mode |= WIRELESS_MODE_11N;
195 return wireless_mode;
199 int iwm_eeprom_init(struct iwm_priv *iwm)
204 iwm->eeprom = kzalloc(IWM_EEPROM_LEN, GFP_KERNEL);
208 for (i = IWM_EEPROM_FIRST; i < IWM_EEPROM_LAST; i++) {
209 ret = iwm_eeprom_read(iwm, i);
211 IWM_ERR(iwm, "Couldn't read eeprom entry #%d: %s\n",
212 i, eeprom_map[i].name);
217 IWM_DBG_BOOT(iwm, DBG, "EEPROM dump:\n");
218 for (i = IWM_EEPROM_FIRST; i < IWM_EEPROM_LAST; i++) {
220 sprintf(name, "%s: ", eeprom_map[i].name);
222 IWM_HEXDUMP(iwm, DBG, BOOT, name,
223 iwm->eeprom + eeprom_map[i].offset,
224 eeprom_map[i].length);
230 void iwm_eeprom_exit(struct iwm_priv *iwm)