18e99ea8dSJohannes Berg // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
28e99ea8dSJohannes Berg /*
3b476564bSEmmanuel Grumbach * Copyright (C) 2012-2014, 2018-2019, 2021-2024 Intel Corporation
48e99ea8dSJohannes Berg * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
58e99ea8dSJohannes Berg * Copyright (C) 2016-2017 Intel Deutschland GmbH
68e99ea8dSJohannes Berg */
7e705c121SKalle Valo #include <linux/firmware.h>
8e705c121SKalle Valo #include <linux/rtnetlink.h>
9e705c121SKalle Valo #include "iwl-trans.h"
10e705c121SKalle Valo #include "iwl-csr.h"
11e705c121SKalle Valo #include "mvm.h"
126584b9d0SEmmanuel Grumbach #include "iwl-nvm-utils.h"
13e705c121SKalle Valo #include "iwl-nvm-parse.h"
14e705c121SKalle Valo #include "iwl-prph.h"
1545f65569SLuca Coelho #include "fw/acpi.h"
16e705c121SKalle Valo
17e705c121SKalle Valo /* Default NVM size to read */
18e705c121SKalle Valo #define IWL_NVM_DEFAULT_CHUNK_SIZE (2 * 1024)
19e705c121SKalle Valo
20e705c121SKalle Valo #define NVM_WRITE_OPCODE 1
21e705c121SKalle Valo #define NVM_READ_OPCODE 0
22e705c121SKalle Valo
23e705c121SKalle Valo /* load nvm chunk response */
24e705c121SKalle Valo enum {
25e705c121SKalle Valo READ_NVM_CHUNK_SUCCEED = 0,
26e705c121SKalle Valo READ_NVM_CHUNK_NOT_VALID_ADDRESS = 1
27e705c121SKalle Valo };
28e705c121SKalle Valo
29e705c121SKalle Valo /*
30e705c121SKalle Valo * prepare the NVM host command w/ the pointers to the nvm buffer
31e705c121SKalle Valo * and send it to fw
32e705c121SKalle Valo */
iwl_nvm_write_chunk(struct iwl_mvm * mvm,u16 section,u16 offset,u16 length,const u8 * data)33e705c121SKalle Valo static int iwl_nvm_write_chunk(struct iwl_mvm *mvm, u16 section,
34e705c121SKalle Valo u16 offset, u16 length, const u8 *data)
35e705c121SKalle Valo {
36e705c121SKalle Valo struct iwl_nvm_access_cmd nvm_access_cmd = {
37e705c121SKalle Valo .offset = cpu_to_le16(offset),
38e705c121SKalle Valo .length = cpu_to_le16(length),
39e705c121SKalle Valo .type = cpu_to_le16(section),
40e705c121SKalle Valo .op_code = NVM_WRITE_OPCODE,
41e705c121SKalle Valo };
42e705c121SKalle Valo struct iwl_host_cmd cmd = {
43e705c121SKalle Valo .id = NVM_ACCESS_CMD,
44e705c121SKalle Valo .len = { sizeof(struct iwl_nvm_access_cmd), length },
459a57f650SMatti Gottlieb .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
46e705c121SKalle Valo .data = { &nvm_access_cmd, data },
47e705c121SKalle Valo /* data may come from vmalloc, so use _DUP */
48e705c121SKalle Valo .dataflags = { 0, IWL_HCMD_DFL_DUP },
49e705c121SKalle Valo };
509a57f650SMatti Gottlieb struct iwl_rx_packet *pkt;
519a57f650SMatti Gottlieb struct iwl_nvm_access_resp *nvm_resp;
529a57f650SMatti Gottlieb int ret;
53e705c121SKalle Valo
549a57f650SMatti Gottlieb ret = iwl_mvm_send_cmd(mvm, &cmd);
559a57f650SMatti Gottlieb if (ret)
569a57f650SMatti Gottlieb return ret;
579a57f650SMatti Gottlieb
589a57f650SMatti Gottlieb pkt = cmd.resp_pkt;
599a57f650SMatti Gottlieb /* Extract & check NVM write response */
609a57f650SMatti Gottlieb nvm_resp = (void *)pkt->data;
619a57f650SMatti Gottlieb if (le16_to_cpu(nvm_resp->status) != READ_NVM_CHUNK_SUCCEED) {
629a57f650SMatti Gottlieb IWL_ERR(mvm,
639a57f650SMatti Gottlieb "NVM access write command failed for section %u (status = 0x%x)\n",
649a57f650SMatti Gottlieb section, le16_to_cpu(nvm_resp->status));
659a57f650SMatti Gottlieb ret = -EIO;
669a57f650SMatti Gottlieb }
679a57f650SMatti Gottlieb
689a57f650SMatti Gottlieb iwl_free_resp(&cmd);
699a57f650SMatti Gottlieb return ret;
70e705c121SKalle Valo }
71e705c121SKalle Valo
iwl_nvm_read_chunk(struct iwl_mvm * mvm,u16 section,u16 offset,u16 length,u8 * data)72e705c121SKalle Valo static int iwl_nvm_read_chunk(struct iwl_mvm *mvm, u16 section,
73e705c121SKalle Valo u16 offset, u16 length, u8 *data)
74e705c121SKalle Valo {
75e705c121SKalle Valo struct iwl_nvm_access_cmd nvm_access_cmd = {
76e705c121SKalle Valo .offset = cpu_to_le16(offset),
77e705c121SKalle Valo .length = cpu_to_le16(length),
78e705c121SKalle Valo .type = cpu_to_le16(section),
79e705c121SKalle Valo .op_code = NVM_READ_OPCODE,
80e705c121SKalle Valo };
81e705c121SKalle Valo struct iwl_nvm_access_resp *nvm_resp;
82e705c121SKalle Valo struct iwl_rx_packet *pkt;
83e705c121SKalle Valo struct iwl_host_cmd cmd = {
84e705c121SKalle Valo .id = NVM_ACCESS_CMD,
85e705c121SKalle Valo .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
86e705c121SKalle Valo .data = { &nvm_access_cmd, },
87e705c121SKalle Valo };
88e705c121SKalle Valo int ret, bytes_read, offset_read;
89e705c121SKalle Valo u8 *resp_data;
90e705c121SKalle Valo
91e705c121SKalle Valo cmd.len[0] = sizeof(struct iwl_nvm_access_cmd);
92e705c121SKalle Valo
93e705c121SKalle Valo ret = iwl_mvm_send_cmd(mvm, &cmd);
94e705c121SKalle Valo if (ret)
95e705c121SKalle Valo return ret;
96e705c121SKalle Valo
97e705c121SKalle Valo pkt = cmd.resp_pkt;
98e705c121SKalle Valo
99e705c121SKalle Valo /* Extract NVM response */
100e705c121SKalle Valo nvm_resp = (void *)pkt->data;
101e705c121SKalle Valo ret = le16_to_cpu(nvm_resp->status);
102e705c121SKalle Valo bytes_read = le16_to_cpu(nvm_resp->length);
103e705c121SKalle Valo offset_read = le16_to_cpu(nvm_resp->offset);
104e705c121SKalle Valo resp_data = nvm_resp->data;
105e705c121SKalle Valo if (ret) {
106e705c121SKalle Valo if ((offset != 0) &&
107e705c121SKalle Valo (ret == READ_NVM_CHUNK_NOT_VALID_ADDRESS)) {
108e705c121SKalle Valo /*
109e705c121SKalle Valo * meaning of NOT_VALID_ADDRESS:
110e705c121SKalle Valo * driver try to read chunk from address that is
111e705c121SKalle Valo * multiple of 2K and got an error since addr is empty.
112e705c121SKalle Valo * meaning of (offset != 0): driver already
113e705c121SKalle Valo * read valid data from another chunk so this case
114e705c121SKalle Valo * is not an error.
115e705c121SKalle Valo */
116e705c121SKalle Valo IWL_DEBUG_EEPROM(mvm->trans->dev,
117e705c121SKalle Valo "NVM access command failed on offset 0x%x since that section size is multiple 2K\n",
118e705c121SKalle Valo offset);
119e705c121SKalle Valo ret = 0;
120e705c121SKalle Valo } else {
121e705c121SKalle Valo IWL_DEBUG_EEPROM(mvm->trans->dev,
122e705c121SKalle Valo "NVM access command failed with status %d (device: %s)\n",
1230b295a1eSLuca Coelho ret, mvm->trans->name);
124c281f137SJohannes Berg ret = -ENODATA;
125e705c121SKalle Valo }
126e705c121SKalle Valo goto exit;
127e705c121SKalle Valo }
128e705c121SKalle Valo
129e705c121SKalle Valo if (offset_read != offset) {
130e705c121SKalle Valo IWL_ERR(mvm, "NVM ACCESS response with invalid offset %d\n",
131e705c121SKalle Valo offset_read);
132e705c121SKalle Valo ret = -EINVAL;
133e705c121SKalle Valo goto exit;
134e705c121SKalle Valo }
135e705c121SKalle Valo
136e705c121SKalle Valo /* Write data to NVM */
137e705c121SKalle Valo memcpy(data + offset, resp_data, bytes_read);
138e705c121SKalle Valo ret = bytes_read;
139e705c121SKalle Valo
140e705c121SKalle Valo exit:
141e705c121SKalle Valo iwl_free_resp(&cmd);
142e705c121SKalle Valo return ret;
143e705c121SKalle Valo }
144e705c121SKalle Valo
iwl_nvm_write_section(struct iwl_mvm * mvm,u16 section,const u8 * data,u16 length)145e705c121SKalle Valo static int iwl_nvm_write_section(struct iwl_mvm *mvm, u16 section,
146e705c121SKalle Valo const u8 *data, u16 length)
147e705c121SKalle Valo {
148e705c121SKalle Valo int offset = 0;
149e705c121SKalle Valo
150e705c121SKalle Valo /* copy data in chunks of 2k (and remainder if any) */
151e705c121SKalle Valo
152e705c121SKalle Valo while (offset < length) {
153e705c121SKalle Valo int chunk_size, ret;
154e705c121SKalle Valo
155e705c121SKalle Valo chunk_size = min(IWL_NVM_DEFAULT_CHUNK_SIZE,
156e705c121SKalle Valo length - offset);
157e705c121SKalle Valo
158e705c121SKalle Valo ret = iwl_nvm_write_chunk(mvm, section, offset,
159e705c121SKalle Valo chunk_size, data + offset);
160e705c121SKalle Valo if (ret < 0)
161e705c121SKalle Valo return ret;
162e705c121SKalle Valo
163e705c121SKalle Valo offset += chunk_size;
164e705c121SKalle Valo }
165e705c121SKalle Valo
166e705c121SKalle Valo return 0;
167e705c121SKalle Valo }
168e705c121SKalle Valo
169e705c121SKalle Valo /*
170e705c121SKalle Valo * Reads an NVM section completely.
171e705c121SKalle Valo * NICs prior to 7000 family doesn't have a real NVM, but just read
172e705c121SKalle Valo * section 0 which is the EEPROM. Because the EEPROM reading is unlimited
173e705c121SKalle Valo * by uCode, we need to manually check in this case that we don't
174e705c121SKalle Valo * overflow and try to read more than the EEPROM size.
175e705c121SKalle Valo * For 7000 family NICs, we supply the maximal size we can read, and
176e705c121SKalle Valo * the uCode fills the response with as much data as we can,
177e705c121SKalle Valo * without overflowing, so no check is needed.
178e705c121SKalle Valo */
iwl_nvm_read_section(struct iwl_mvm * mvm,u16 section,u8 * data,u32 size_read)179e705c121SKalle Valo static int iwl_nvm_read_section(struct iwl_mvm *mvm, u16 section,
180e705c121SKalle Valo u8 *data, u32 size_read)
181e705c121SKalle Valo {
182e705c121SKalle Valo u16 length, offset = 0;
183e705c121SKalle Valo int ret;
184e705c121SKalle Valo
185e705c121SKalle Valo /* Set nvm section read length */
186e705c121SKalle Valo length = IWL_NVM_DEFAULT_CHUNK_SIZE;
187e705c121SKalle Valo
188e705c121SKalle Valo ret = length;
189e705c121SKalle Valo
190e705c121SKalle Valo /* Read the NVM until exhausted (reading less than requested) */
191e705c121SKalle Valo while (ret == length) {
192e705c121SKalle Valo /* Check no memory assumptions fail and cause an overflow */
193e705c121SKalle Valo if ((size_read + offset + length) >
1947d34a7d7SLuca Coelho mvm->trans->trans_cfg->base_params->eeprom_size) {
195e705c121SKalle Valo IWL_ERR(mvm, "EEPROM size is too small for NVM\n");
196e705c121SKalle Valo return -ENOBUFS;
197e705c121SKalle Valo }
198e705c121SKalle Valo
199e705c121SKalle Valo ret = iwl_nvm_read_chunk(mvm, section, offset, length, data);
200e705c121SKalle Valo if (ret < 0) {
201e705c121SKalle Valo IWL_DEBUG_EEPROM(mvm->trans->dev,
202e705c121SKalle Valo "Cannot read NVM from section %d offset %d, length %d\n",
203e705c121SKalle Valo section, offset, length);
204e705c121SKalle Valo return ret;
205e705c121SKalle Valo }
206e705c121SKalle Valo offset += ret;
207e705c121SKalle Valo }
208e705c121SKalle Valo
2099c4f7d51SShaul Triebitz iwl_nvm_fixups(mvm->trans->hw_id, section, data, offset);
2107d162045SJohannes Berg
211e705c121SKalle Valo IWL_DEBUG_EEPROM(mvm->trans->dev,
212e705c121SKalle Valo "NVM section %d read completed\n", section);
213e705c121SKalle Valo return offset;
214e705c121SKalle Valo }
215e705c121SKalle Valo
216e705c121SKalle Valo static struct iwl_nvm_data *
iwl_parse_nvm_sections(struct iwl_mvm * mvm)217e705c121SKalle Valo iwl_parse_nvm_sections(struct iwl_mvm *mvm)
218e705c121SKalle Valo {
219e705c121SKalle Valo struct iwl_nvm_section *sections = mvm->nvm_sections;
2208fe34b06SLuca Coelho const __be16 *hw;
2218fe34b06SLuca Coelho const __le16 *sw, *calib, *regulatory, *mac_override, *phy_sku;
2224ea1ed1dSEmmanuel Grumbach u8 tx_ant = mvm->fw->valid_tx_ant;
2234ea1ed1dSEmmanuel Grumbach u8 rx_ant = mvm->fw->valid_rx_ant;
22444fd09daSChaya Rachel Ivgi int regulatory_type;
225e705c121SKalle Valo
226e705c121SKalle Valo /* Checking for required sections */
227b3f20e09SLuca Coelho if (mvm->trans->cfg->nvm_type == IWL_NVM) {
228e705c121SKalle Valo if (!mvm->nvm_sections[NVM_SECTION_TYPE_SW].data ||
229e705c121SKalle Valo !mvm->nvm_sections[mvm->cfg->nvm_hw_section_num].data) {
230e705c121SKalle Valo IWL_ERR(mvm, "Can't parse empty OTP/NVM sections\n");
231e705c121SKalle Valo return NULL;
232e705c121SKalle Valo }
233e705c121SKalle Valo } else {
23444fd09daSChaya Rachel Ivgi if (mvm->trans->cfg->nvm_type == IWL_NVM_SDP)
23544fd09daSChaya Rachel Ivgi regulatory_type = NVM_SECTION_TYPE_REGULATORY_SDP;
23644fd09daSChaya Rachel Ivgi else
23744fd09daSChaya Rachel Ivgi regulatory_type = NVM_SECTION_TYPE_REGULATORY;
23844fd09daSChaya Rachel Ivgi
239e705c121SKalle Valo /* SW and REGULATORY sections are mandatory */
240e705c121SKalle Valo if (!mvm->nvm_sections[NVM_SECTION_TYPE_SW].data ||
24144fd09daSChaya Rachel Ivgi !mvm->nvm_sections[regulatory_type].data) {
242e705c121SKalle Valo IWL_ERR(mvm,
243e705c121SKalle Valo "Can't parse empty family 8000 OTP/NVM sections\n");
244e705c121SKalle Valo return NULL;
245e705c121SKalle Valo }
246e705c121SKalle Valo /* MAC_OVERRIDE or at least HW section must exist */
247e705c121SKalle Valo if (!mvm->nvm_sections[mvm->cfg->nvm_hw_section_num].data &&
248e705c121SKalle Valo !mvm->nvm_sections[NVM_SECTION_TYPE_MAC_OVERRIDE].data) {
249e705c121SKalle Valo IWL_ERR(mvm,
250e705c121SKalle Valo "Can't parse mac_address, empty sections\n");
251e705c121SKalle Valo return NULL;
252e705c121SKalle Valo }
253e705c121SKalle Valo
254e705c121SKalle Valo /* PHY_SKU section is mandatory in B0 */
255a9149d24SDan Moulding if (mvm->trans->cfg->nvm_type == IWL_NVM_EXT &&
256a9149d24SDan Moulding !mvm->nvm_sections[NVM_SECTION_TYPE_PHY_SKU].data) {
257e705c121SKalle Valo IWL_ERR(mvm,
258e705c121SKalle Valo "Can't parse phy_sku in B0, empty sections\n");
259e705c121SKalle Valo return NULL;
260e705c121SKalle Valo }
261e705c121SKalle Valo }
262e705c121SKalle Valo
2638fe34b06SLuca Coelho hw = (const __be16 *)sections[mvm->cfg->nvm_hw_section_num].data;
264e705c121SKalle Valo sw = (const __le16 *)sections[NVM_SECTION_TYPE_SW].data;
265e705c121SKalle Valo calib = (const __le16 *)sections[NVM_SECTION_TYPE_CALIBRATION].data;
266e705c121SKalle Valo mac_override =
267e705c121SKalle Valo (const __le16 *)sections[NVM_SECTION_TYPE_MAC_OVERRIDE].data;
268e705c121SKalle Valo phy_sku = (const __le16 *)sections[NVM_SECTION_TYPE_PHY_SKU].data;
269e705c121SKalle Valo
27044fd09daSChaya Rachel Ivgi regulatory = mvm->trans->cfg->nvm_type == IWL_NVM_SDP ?
27144fd09daSChaya Rachel Ivgi (const __le16 *)sections[NVM_SECTION_TYPE_REGULATORY_SDP].data :
27244fd09daSChaya Rachel Ivgi (const __le16 *)sections[NVM_SECTION_TYPE_REGULATORY].data;
27344fd09daSChaya Rachel Ivgi
2744ea1ed1dSEmmanuel Grumbach if (mvm->set_tx_ant)
2754ea1ed1dSEmmanuel Grumbach tx_ant &= mvm->set_tx_ant;
2764ea1ed1dSEmmanuel Grumbach
2774ea1ed1dSEmmanuel Grumbach if (mvm->set_rx_ant)
2784ea1ed1dSEmmanuel Grumbach rx_ant &= mvm->set_rx_ant;
2794ea1ed1dSEmmanuel Grumbach
280f06021a1SLuca Coelho return iwl_parse_nvm_data(mvm->trans, mvm->cfg, mvm->fw, hw, sw, calib,
281e705c121SKalle Valo regulatory, mac_override, phy_sku,
2824ea1ed1dSEmmanuel Grumbach tx_ant, rx_ant);
283e705c121SKalle Valo }
284e705c121SKalle Valo
285e705c121SKalle Valo /* Loads the NVM data stored in mvm->nvm_sections into the NIC */
iwl_mvm_load_nvm_to_nic(struct iwl_mvm * mvm)286e705c121SKalle Valo int iwl_mvm_load_nvm_to_nic(struct iwl_mvm *mvm)
287e705c121SKalle Valo {
288e705c121SKalle Valo int i, ret = 0;
289e705c121SKalle Valo struct iwl_nvm_section *sections = mvm->nvm_sections;
290e705c121SKalle Valo
291e705c121SKalle Valo IWL_DEBUG_EEPROM(mvm->trans->dev, "'Write to NVM\n");
292e705c121SKalle Valo
293e705c121SKalle Valo for (i = 0; i < ARRAY_SIZE(mvm->nvm_sections); i++) {
294e705c121SKalle Valo if (!mvm->nvm_sections[i].data || !mvm->nvm_sections[i].length)
295e705c121SKalle Valo continue;
296e705c121SKalle Valo ret = iwl_nvm_write_section(mvm, i, sections[i].data,
297e705c121SKalle Valo sections[i].length);
298e705c121SKalle Valo if (ret < 0) {
299e705c121SKalle Valo IWL_ERR(mvm, "iwl_mvm_send_cmd failed: %d\n", ret);
300e705c121SKalle Valo break;
301e705c121SKalle Valo }
302e705c121SKalle Valo }
303e705c121SKalle Valo return ret;
304e705c121SKalle Valo }
305e705c121SKalle Valo
iwl_nvm_init(struct iwl_mvm * mvm)3065bd1d2c1SLuca Coelho int iwl_nvm_init(struct iwl_mvm *mvm)
307e705c121SKalle Valo {
308e705c121SKalle Valo int ret, section;
309e705c121SKalle Valo u32 size_read = 0;
310e705c121SKalle Valo u8 *nvm_buffer, *temp;
311e705c121SKalle Valo const char *nvm_file_C = mvm->cfg->default_nvm_file_C_step;
312e705c121SKalle Valo
313e705c121SKalle Valo if (WARN_ON_ONCE(mvm->cfg->nvm_hw_section_num >= NVM_MAX_NUM_SECTIONS))
314e705c121SKalle Valo return -EINVAL;
315e705c121SKalle Valo
316e705c121SKalle Valo /* load NVM values from nic */
317e705c121SKalle Valo /* Read From FW NVM */
318e705c121SKalle Valo IWL_DEBUG_EEPROM(mvm->trans->dev, "Read from NVM\n");
319e705c121SKalle Valo
3207d34a7d7SLuca Coelho nvm_buffer = kmalloc(mvm->trans->trans_cfg->base_params->eeprom_size,
321e705c121SKalle Valo GFP_KERNEL);
322e705c121SKalle Valo if (!nvm_buffer)
323e705c121SKalle Valo return -ENOMEM;
324e705c121SKalle Valo for (section = 0; section < NVM_MAX_NUM_SECTIONS; section++) {
325e705c121SKalle Valo /* we override the constness for initial read */
326e705c121SKalle Valo ret = iwl_nvm_read_section(mvm, section, nvm_buffer,
327e705c121SKalle Valo size_read);
328c281f137SJohannes Berg if (ret == -ENODATA) {
329c281f137SJohannes Berg ret = 0;
330e705c121SKalle Valo continue;
331c281f137SJohannes Berg }
332c281f137SJohannes Berg if (ret < 0)
333c281f137SJohannes Berg break;
334e705c121SKalle Valo size_read += ret;
335e705c121SKalle Valo temp = kmemdup(nvm_buffer, ret, GFP_KERNEL);
336e705c121SKalle Valo if (!temp) {
337e705c121SKalle Valo ret = -ENOMEM;
338e705c121SKalle Valo break;
339e705c121SKalle Valo }
3407d162045SJohannes Berg
3419c4f7d51SShaul Triebitz iwl_nvm_fixups(mvm->trans->hw_id, section, temp, ret);
3427d162045SJohannes Berg
343e705c121SKalle Valo mvm->nvm_sections[section].data = temp;
344e705c121SKalle Valo mvm->nvm_sections[section].length = ret;
345e705c121SKalle Valo
346e705c121SKalle Valo #ifdef CONFIG_IWLWIFI_DEBUGFS
347e705c121SKalle Valo switch (section) {
348e705c121SKalle Valo case NVM_SECTION_TYPE_SW:
349e705c121SKalle Valo mvm->nvm_sw_blob.data = temp;
350e705c121SKalle Valo mvm->nvm_sw_blob.size = ret;
351e705c121SKalle Valo break;
352e705c121SKalle Valo case NVM_SECTION_TYPE_CALIBRATION:
353e705c121SKalle Valo mvm->nvm_calib_blob.data = temp;
354e705c121SKalle Valo mvm->nvm_calib_blob.size = ret;
355e705c121SKalle Valo break;
356e705c121SKalle Valo case NVM_SECTION_TYPE_PRODUCTION:
357e705c121SKalle Valo mvm->nvm_prod_blob.data = temp;
358e705c121SKalle Valo mvm->nvm_prod_blob.size = ret;
359e705c121SKalle Valo break;
360e705c121SKalle Valo case NVM_SECTION_TYPE_PHY_SKU:
361e705c121SKalle Valo mvm->nvm_phy_sku_blob.data = temp;
362e705c121SKalle Valo mvm->nvm_phy_sku_blob.size = ret;
363e705c121SKalle Valo break;
3640f8bf03cSLuca Coelho case NVM_SECTION_TYPE_REGULATORY_SDP:
3650f8bf03cSLuca Coelho case NVM_SECTION_TYPE_REGULATORY:
3660f8bf03cSLuca Coelho mvm->nvm_reg_blob.data = temp;
3670f8bf03cSLuca Coelho mvm->nvm_reg_blob.size = ret;
3680f8bf03cSLuca Coelho break;
369e705c121SKalle Valo default:
370e705c121SKalle Valo if (section == mvm->cfg->nvm_hw_section_num) {
371e705c121SKalle Valo mvm->nvm_hw_blob.data = temp;
372e705c121SKalle Valo mvm->nvm_hw_blob.size = ret;
373e705c121SKalle Valo break;
374e705c121SKalle Valo }
375e705c121SKalle Valo }
376e705c121SKalle Valo #endif
377e705c121SKalle Valo }
378e705c121SKalle Valo if (!size_read)
379e705c121SKalle Valo IWL_ERR(mvm, "OTP is blank\n");
380e705c121SKalle Valo kfree(nvm_buffer);
381e705c121SKalle Valo
382e705c121SKalle Valo /* Only if PNVM selected in the mod param - load external NVM */
383e705c121SKalle Valo if (mvm->nvm_file_name) {
384e705c121SKalle Valo /* read External NVM file from the mod param */
3859c4f7d51SShaul Triebitz ret = iwl_read_external_nvm(mvm->trans, mvm->nvm_file_name,
3869c4f7d51SShaul Triebitz mvm->nvm_sections);
387e705c121SKalle Valo if (ret) {
388e705c121SKalle Valo mvm->nvm_file_name = nvm_file_C;
389e705c121SKalle Valo
390488c28e1SOren Givon if ((ret == -EFAULT || ret == -ENOENT) &&
391488c28e1SOren Givon mvm->nvm_file_name) {
392e705c121SKalle Valo /* in case nvm file was failed try again */
3939c4f7d51SShaul Triebitz ret = iwl_read_external_nvm(mvm->trans,
3949c4f7d51SShaul Triebitz mvm->nvm_file_name,
3959c4f7d51SShaul Triebitz mvm->nvm_sections);
396e705c121SKalle Valo if (ret)
397e705c121SKalle Valo return ret;
398e705c121SKalle Valo } else {
399e705c121SKalle Valo return ret;
400e705c121SKalle Valo }
401e705c121SKalle Valo }
402e705c121SKalle Valo }
403e705c121SKalle Valo
404e705c121SKalle Valo /* parse the relevant nvm sections */
405e705c121SKalle Valo mvm->nvm_data = iwl_parse_nvm_sections(mvm);
406e705c121SKalle Valo if (!mvm->nvm_data)
407e705c121SKalle Valo return -ENODATA;
408e705c121SKalle Valo IWL_DEBUG_EEPROM(mvm->trans->dev, "nvm version = %x\n",
409e705c121SKalle Valo mvm->nvm_data->nvm_version);
410e705c121SKalle Valo
411c281f137SJohannes Berg return ret < 0 ? ret : 0;
412e705c121SKalle Valo }
413e705c121SKalle Valo
414e9b63341SAbhishek Naik struct iwl_mcc_update_resp_v8 *
iwl_mvm_update_mcc(struct iwl_mvm * mvm,const char * alpha2,enum iwl_mcc_source src_id)415e705c121SKalle Valo iwl_mvm_update_mcc(struct iwl_mvm *mvm, const char *alpha2,
416e705c121SKalle Valo enum iwl_mcc_source src_id)
417e705c121SKalle Valo {
418e705c121SKalle Valo struct iwl_mcc_update_cmd mcc_update_cmd = {
419e705c121SKalle Valo .mcc = cpu_to_le16(alpha2[0] << 8 | alpha2[1]),
420e705c121SKalle Valo .source_id = (u8)src_id,
421e705c121SKalle Valo };
422e9b63341SAbhishek Naik struct iwl_mcc_update_resp_v8 *resp_cp;
423e705c121SKalle Valo struct iwl_rx_packet *pkt;
424e705c121SKalle Valo struct iwl_host_cmd cmd = {
425e705c121SKalle Valo .id = MCC_UPDATE_CMD,
426eb09ae93SMiri Korenblit .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
427e705c121SKalle Valo .data = { &mcc_update_cmd },
428e705c121SKalle Valo };
429e705c121SKalle Valo
430e9b63341SAbhishek Naik int ret, resp_ver;
431e705c121SKalle Valo u32 status;
432e705c121SKalle Valo int resp_len, n_channels;
433e705c121SKalle Valo u16 mcc;
434e705c121SKalle Valo
435e705c121SKalle Valo if (WARN_ON_ONCE(!iwl_mvm_is_lar_supported(mvm)))
436e705c121SKalle Valo return ERR_PTR(-EOPNOTSUPP);
437e705c121SKalle Valo
438e705c121SKalle Valo cmd.len[0] = sizeof(struct iwl_mcc_update_cmd);
439e705c121SKalle Valo
440e705c121SKalle Valo IWL_DEBUG_LAR(mvm, "send MCC update to FW with '%c%c' src = %d\n",
441e705c121SKalle Valo alpha2[0], alpha2[1], src_id);
442e705c121SKalle Valo
443e705c121SKalle Valo ret = iwl_mvm_send_cmd(mvm, &cmd);
444e705c121SKalle Valo if (ret)
445e705c121SKalle Valo return ERR_PTR(ret);
446e705c121SKalle Valo
447e705c121SKalle Valo pkt = cmd.resp_pkt;
448e705c121SKalle Valo
449e9b63341SAbhishek Naik resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP,
450e9b63341SAbhishek Naik MCC_UPDATE_CMD, 0);
4515a7d87daSArnd Bergmann
452e9b63341SAbhishek Naik /* Extract MCC response */
453e9b63341SAbhishek Naik if (resp_ver >= 8) {
454e9b63341SAbhishek Naik struct iwl_mcc_update_resp_v8 *mcc_resp_v8 = (void *)pkt->data;
455e9b63341SAbhishek Naik
456e9b63341SAbhishek Naik n_channels = __le32_to_cpu(mcc_resp_v8->n_channels);
457682b6dc2SJohannes Berg if (iwl_rx_packet_payload_len(pkt) !=
458e9b63341SAbhishek Naik struct_size(mcc_resp_v8, channels, n_channels)) {
459682b6dc2SJohannes Berg resp_cp = ERR_PTR(-EINVAL);
460682b6dc2SJohannes Berg goto exit;
461682b6dc2SJohannes Berg }
462e9b63341SAbhishek Naik resp_len = struct_size(resp_cp, channels, n_channels);
463e9b63341SAbhishek Naik resp_cp = kzalloc(resp_len, GFP_KERNEL);
46428269897SJohannes Berg if (!resp_cp) {
46528269897SJohannes Berg resp_cp = ERR_PTR(-ENOMEM);
46628269897SJohannes Berg goto exit;
46728269897SJohannes Berg }
468e9b63341SAbhishek Naik resp_cp->status = mcc_resp_v8->status;
469e9b63341SAbhishek Naik resp_cp->mcc = mcc_resp_v8->mcc;
470e9b63341SAbhishek Naik resp_cp->cap = mcc_resp_v8->cap;
471e9b63341SAbhishek Naik resp_cp->source_id = mcc_resp_v8->source_id;
472e9b63341SAbhishek Naik resp_cp->time = mcc_resp_v8->time;
473e9b63341SAbhishek Naik resp_cp->geo_info = mcc_resp_v8->geo_info;
474e9b63341SAbhishek Naik resp_cp->n_channels = mcc_resp_v8->n_channels;
475e9b63341SAbhishek Naik memcpy(resp_cp->channels, mcc_resp_v8->channels,
476e9b63341SAbhishek Naik n_channels * sizeof(__le32));
477e9b63341SAbhishek Naik } else if (fw_has_capa(&mvm->fw->ucode_capa,
478e9b63341SAbhishek Naik IWL_UCODE_TLV_CAPA_MCC_UPDATE_11AX_SUPPORT)) {
479e9b63341SAbhishek Naik struct iwl_mcc_update_resp_v4 *mcc_resp_v4 = (void *)pkt->data;
480e9b63341SAbhishek Naik
481e9b63341SAbhishek Naik n_channels = __le32_to_cpu(mcc_resp_v4->n_channels);
482e9b63341SAbhishek Naik if (iwl_rx_packet_payload_len(pkt) !=
483e9b63341SAbhishek Naik struct_size(mcc_resp_v4, channels, n_channels)) {
484e9b63341SAbhishek Naik resp_cp = ERR_PTR(-EINVAL);
485e9b63341SAbhishek Naik goto exit;
486e9b63341SAbhishek Naik }
487e9b63341SAbhishek Naik resp_len = struct_size(resp_cp, channels, n_channels);
488e9b63341SAbhishek Naik resp_cp = kzalloc(resp_len, GFP_KERNEL);
489e9b63341SAbhishek Naik if (!resp_cp) {
490e9b63341SAbhishek Naik resp_cp = ERR_PTR(-ENOMEM);
491e9b63341SAbhishek Naik goto exit;
492e9b63341SAbhishek Naik }
493e9b63341SAbhishek Naik
494e9b63341SAbhishek Naik resp_cp->status = mcc_resp_v4->status;
495e9b63341SAbhishek Naik resp_cp->mcc = mcc_resp_v4->mcc;
496e9b63341SAbhishek Naik resp_cp->cap = cpu_to_le32(le16_to_cpu(mcc_resp_v4->cap));
497e9b63341SAbhishek Naik resp_cp->source_id = mcc_resp_v4->source_id;
498e9b63341SAbhishek Naik resp_cp->time = mcc_resp_v4->time;
499e9b63341SAbhishek Naik resp_cp->geo_info = mcc_resp_v4->geo_info;
500e9b63341SAbhishek Naik resp_cp->n_channels = mcc_resp_v4->n_channels;
501e9b63341SAbhishek Naik memcpy(resp_cp->channels, mcc_resp_v4->channels,
502e9b63341SAbhishek Naik n_channels * sizeof(__le32));
5036fa52430SMatti Gottlieb } else {
50447fe2f8eSHaim Dreyfuss struct iwl_mcc_update_resp_v3 *mcc_resp_v3 = (void *)pkt->data;
5055a7d87daSArnd Bergmann
50647fe2f8eSHaim Dreyfuss n_channels = __le32_to_cpu(mcc_resp_v3->n_channels);
507682b6dc2SJohannes Berg if (iwl_rx_packet_payload_len(pkt) !=
508682b6dc2SJohannes Berg struct_size(mcc_resp_v3, channels, n_channels)) {
509682b6dc2SJohannes Berg resp_cp = ERR_PTR(-EINVAL);
510682b6dc2SJohannes Berg goto exit;
511682b6dc2SJohannes Berg }
512e9b63341SAbhishek Naik resp_len = struct_size(resp_cp, channels, n_channels);
5136fa52430SMatti Gottlieb resp_cp = kzalloc(resp_len, GFP_KERNEL);
51428269897SJohannes Berg if (!resp_cp) {
51528269897SJohannes Berg resp_cp = ERR_PTR(-ENOMEM);
51628269897SJohannes Berg goto exit;
51728269897SJohannes Berg }
518e705c121SKalle Valo
51947fe2f8eSHaim Dreyfuss resp_cp->status = mcc_resp_v3->status;
52047fe2f8eSHaim Dreyfuss resp_cp->mcc = mcc_resp_v3->mcc;
521e9b63341SAbhishek Naik resp_cp->cap = cpu_to_le32(mcc_resp_v3->cap);
52247fe2f8eSHaim Dreyfuss resp_cp->source_id = mcc_resp_v3->source_id;
52347fe2f8eSHaim Dreyfuss resp_cp->time = mcc_resp_v3->time;
52447fe2f8eSHaim Dreyfuss resp_cp->geo_info = mcc_resp_v3->geo_info;
52547fe2f8eSHaim Dreyfuss resp_cp->n_channels = mcc_resp_v3->n_channels;
52647fe2f8eSHaim Dreyfuss memcpy(resp_cp->channels, mcc_resp_v3->channels,
5276fa52430SMatti Gottlieb n_channels * sizeof(__le32));
5286fa52430SMatti Gottlieb }
5296fa52430SMatti Gottlieb
5306fa52430SMatti Gottlieb status = le32_to_cpu(resp_cp->status);
5316fa52430SMatti Gottlieb
5326fa52430SMatti Gottlieb mcc = le16_to_cpu(resp_cp->mcc);
5336fa52430SMatti Gottlieb
5346fa52430SMatti Gottlieb /* W/A for a FW/NVM issue - returns 0x00 for the world domain */
5356fa52430SMatti Gottlieb if (mcc == 0) {
5366fa52430SMatti Gottlieb mcc = 0x3030; /* "00" - world */
5376fa52430SMatti Gottlieb resp_cp->mcc = cpu_to_le16(mcc);
5386fa52430SMatti Gottlieb }
5396fa52430SMatti Gottlieb
5406fa52430SMatti Gottlieb IWL_DEBUG_LAR(mvm,
54182715ac7SEmmanuel Grumbach "MCC response status: 0x%x. new MCC: 0x%x ('%c%c') n_chans: %d\n",
54282715ac7SEmmanuel Grumbach status, mcc, mcc >> 8, mcc & 0xff, n_channels);
5436fa52430SMatti Gottlieb
544e705c121SKalle Valo exit:
545e705c121SKalle Valo iwl_free_resp(&cmd);
546e705c121SKalle Valo return resp_cp;
547e705c121SKalle Valo }
548e705c121SKalle Valo
iwl_mvm_init_mcc(struct iwl_mvm * mvm)549e705c121SKalle Valo int iwl_mvm_init_mcc(struct iwl_mvm *mvm)
550e705c121SKalle Valo {
551e705c121SKalle Valo bool tlv_lar;
552e705c121SKalle Valo bool nvm_lar;
553e705c121SKalle Valo int retval;
554e705c121SKalle Valo struct ieee80211_regdomain *regd;
555e705c121SKalle Valo char mcc[3];
556e705c121SKalle Valo
55744fd09daSChaya Rachel Ivgi if (mvm->cfg->nvm_type == IWL_NVM_EXT) {
558e705c121SKalle Valo tlv_lar = fw_has_capa(&mvm->fw->ucode_capa,
559e705c121SKalle Valo IWL_UCODE_TLV_CAPA_LAR_SUPPORT);
560e705c121SKalle Valo nvm_lar = mvm->nvm_data->lar_enabled;
561e705c121SKalle Valo if (tlv_lar != nvm_lar)
562e705c121SKalle Valo IWL_INFO(mvm,
563e705c121SKalle Valo "Conflict between TLV & NVM regarding enabling LAR (TLV = %s NVM =%s)\n",
564e705c121SKalle Valo tlv_lar ? "enabled" : "disabled",
565e705c121SKalle Valo nvm_lar ? "enabled" : "disabled");
566e705c121SKalle Valo }
567e705c121SKalle Valo
568e705c121SKalle Valo if (!iwl_mvm_is_lar_supported(mvm))
569e705c121SKalle Valo return 0;
570e705c121SKalle Valo
571e705c121SKalle Valo /*
572e705c121SKalle Valo * try to replay the last set MCC to FW. If it doesn't exist,
573e705c121SKalle Valo * queue an update to cfg80211 to retrieve the default alpha2 from FW.
574e705c121SKalle Valo */
575ea02a208SGregory Greenman retval = iwl_mvm_init_fw_regd(mvm, true);
576e705c121SKalle Valo if (retval != -ENOENT)
577e705c121SKalle Valo return retval;
578e705c121SKalle Valo
579e705c121SKalle Valo /*
580e705c121SKalle Valo * Driver regulatory hint for initial update, this also informs the
581e705c121SKalle Valo * firmware we support wifi location updates.
582e705c121SKalle Valo * Disallow scans that might crash the FW while the LAR regdomain
583e705c121SKalle Valo * is not set.
584e705c121SKalle Valo */
585e705c121SKalle Valo mvm->lar_regdom_set = false;
586e705c121SKalle Valo
587e705c121SKalle Valo regd = iwl_mvm_get_current_regdomain(mvm, NULL);
588e705c121SKalle Valo if (IS_ERR_OR_NULL(regd))
589e705c121SKalle Valo return -EIO;
590e705c121SKalle Valo
591e705c121SKalle Valo if (iwl_mvm_is_wifi_mcc_supported(mvm) &&
592669761e8SMiri Korenblit !iwl_bios_get_mcc(&mvm->fwrt, mcc)) {
593e705c121SKalle Valo kfree(regd);
594e705c121SKalle Valo regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, mcc,
595e705c121SKalle Valo MCC_SOURCE_BIOS, NULL);
596e705c121SKalle Valo if (IS_ERR_OR_NULL(regd))
597e705c121SKalle Valo return -EIO;
598e705c121SKalle Valo }
599e705c121SKalle Valo
600a05829a7SJohannes Berg retval = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd);
601e705c121SKalle Valo kfree(regd);
602e705c121SKalle Valo return retval;
603e705c121SKalle Valo }
604e705c121SKalle Valo
iwl_mvm_rx_chub_update_mcc(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)605e705c121SKalle Valo void iwl_mvm_rx_chub_update_mcc(struct iwl_mvm *mvm,
606e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb)
607e705c121SKalle Valo {
608e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb);
609e705c121SKalle Valo struct iwl_mcc_chub_notif *notif = (void *)pkt->data;
610e705c121SKalle Valo enum iwl_mcc_source src;
611e705c121SKalle Valo char mcc[3];
612e705c121SKalle Valo struct ieee80211_regdomain *regd;
613b6cf2879SColin Ian King int wgds_tbl_idx;
614*1987bf29SIlan Peer bool changed = false;
615e705c121SKalle Valo
616e705c121SKalle Valo lockdep_assert_held(&mvm->mutex);
617e705c121SKalle Valo
618d4a7e708SHaim Dreyfuss if (iwl_mvm_is_vif_assoc(mvm) && notif->source_id == MCC_SOURCE_WIFI) {
619d4a7e708SHaim Dreyfuss IWL_DEBUG_LAR(mvm, "Ignore mcc update while associated\n");
620d4a7e708SHaim Dreyfuss return;
621d4a7e708SHaim Dreyfuss }
622d4a7e708SHaim Dreyfuss
623e705c121SKalle Valo if (WARN_ON_ONCE(!iwl_mvm_is_lar_supported(mvm)))
624e705c121SKalle Valo return;
625e705c121SKalle Valo
62656c1f3c4SJohannes Berg mcc[0] = le16_to_cpu(notif->mcc) >> 8;
62756c1f3c4SJohannes Berg mcc[1] = le16_to_cpu(notif->mcc) & 0xff;
628e705c121SKalle Valo mcc[2] = '\0';
629e705c121SKalle Valo src = notif->source_id;
630e705c121SKalle Valo
631e705c121SKalle Valo IWL_DEBUG_LAR(mvm,
632e705c121SKalle Valo "RX: received chub update mcc cmd (mcc '%s' src %d)\n",
633e705c121SKalle Valo mcc, src);
634*1987bf29SIlan Peer regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, mcc, src, &changed);
635e705c121SKalle Valo if (IS_ERR_OR_NULL(regd))
636e705c121SKalle Valo return;
637e705c121SKalle Valo
638*1987bf29SIlan Peer if (!changed) {
639*1987bf29SIlan Peer IWL_DEBUG_LAR(mvm, "RX: No change in the regulatory data\n");
640*1987bf29SIlan Peer goto out;
641*1987bf29SIlan Peer }
642*1987bf29SIlan Peer
6434fd445a2SHaim Dreyfuss wgds_tbl_idx = iwl_mvm_get_sar_geo_profile(mvm);
644a6175a85SLuca Coelho if (wgds_tbl_idx < 1)
645a6175a85SLuca Coelho IWL_DEBUG_INFO(mvm,
646a6175a85SLuca Coelho "SAR WGDS is disabled or error received (%d)\n",
6474fd445a2SHaim Dreyfuss wgds_tbl_idx);
6484fd445a2SHaim Dreyfuss else
6494fd445a2SHaim Dreyfuss IWL_DEBUG_INFO(mvm, "SAR WGDS: geo profile %d is configured\n",
6504fd445a2SHaim Dreyfuss wgds_tbl_idx);
6514fd445a2SHaim Dreyfuss
652e705c121SKalle Valo regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
653*1987bf29SIlan Peer
654*1987bf29SIlan Peer out:
655e705c121SKalle Valo kfree(regd);
656e705c121SKalle Valo }
657