1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3 * Copyright (C) 2020 - 2021 Intel Corporation
4 */
5
6 #include "mvm.h"
7 #include "fw/api/commands.h"
8 #include "fw/api/phy-ctxt.h"
9
10 /**
11 * DDR needs frequency in units of 16.666MHz, so provide FW with the
12 * frequency values in the adjusted format.
13 */
14 static const struct iwl_rfi_lut_entry iwl_rfi_table[IWL_RFI_LUT_SIZE] = {
15 /* LPDDR4 */
16
17 /* frequency 3733MHz */
18 {cpu_to_le16(223), {114, 116, 118, 120, 122,},
19 {PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5,}},
20
21 /* frequency 4267MHz */
22 {cpu_to_le16(256), {79, 83, 85, 87, 89, 91, 93,},
23 {PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6,
24 PHY_BAND_6, PHY_BAND_6,}},
25
26 /* DDR5ePOR */
27
28 /* frequency 4000MHz */
29 {cpu_to_le16(240), {3, 5, 7, 9, 11, 13, 15,},
30 {PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6,
31 PHY_BAND_6, PHY_BAND_6,}},
32
33 /* frequency 4400MHz */
34 {cpu_to_le16(264), {111, 119, 123, 125, 129, 131, 133, 135, 143,},
35 {PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6,
36 PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6,}},
37
38 /* LPDDR5iPOR */
39
40 /* frequency 5200MHz */
41 {cpu_to_le16(312), {36, 38, 40, 42, 50,},
42 {PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5,}},
43
44 /* frequency 6000MHz */
45 {cpu_to_le16(360), {3, 5, 7, 9, 11, 13, 15,},
46 {PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6,
47 PHY_BAND_6, PHY_BAND_6,}},
48
49 /* frequency 6400MHz */
50 {cpu_to_le16(384), {79, 83, 85, 87, 89, 91, 93,},
51 {PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6,
52 PHY_BAND_6, PHY_BAND_6,}},
53 };
54
iwl_rfi_send_config_cmd(struct iwl_mvm * mvm,struct iwl_rfi_lut_entry * rfi_table)55 int iwl_rfi_send_config_cmd(struct iwl_mvm *mvm, struct iwl_rfi_lut_entry *rfi_table)
56 {
57 int ret;
58 struct iwl_rfi_config_cmd cmd;
59 struct iwl_host_cmd hcmd = {
60 .id = WIDE_ID(SYSTEM_GROUP, RFI_CONFIG_CMD),
61 .dataflags[0] = IWL_HCMD_DFL_DUP,
62 .data[0] = &cmd,
63 .len[0] = sizeof(cmd),
64 };
65
66 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_RFIM_SUPPORT))
67 return -EOPNOTSUPP;
68
69 lockdep_assert_held(&mvm->mutex);
70
71 /* in case no table is passed, use the default one */
72 if (!rfi_table) {
73 memcpy(cmd.table, iwl_rfi_table, sizeof(cmd.table));
74 } else {
75 memcpy(cmd.table, rfi_table, sizeof(cmd.table));
76 /* notify FW the table is not the default one */
77 cmd.oem = 1;
78 }
79
80 ret = iwl_mvm_send_cmd(mvm, &hcmd);
81
82 if (ret)
83 IWL_ERR(mvm, "Failed to send RFI config cmd %d\n", ret);
84
85 return ret;
86 }
87
iwl_rfi_get_freq_table(struct iwl_mvm * mvm)88 struct iwl_rfi_freq_table_resp_cmd *iwl_rfi_get_freq_table(struct iwl_mvm *mvm)
89 {
90 struct iwl_rfi_freq_table_resp_cmd *resp;
91 int resp_size = sizeof(*resp);
92 int ret;
93 struct iwl_host_cmd cmd = {
94 .id = WIDE_ID(SYSTEM_GROUP, RFI_GET_FREQ_TABLE_CMD),
95 .flags = CMD_WANT_SKB,
96 };
97
98 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_RFIM_SUPPORT))
99 return ERR_PTR(-EOPNOTSUPP);
100
101 mutex_lock(&mvm->mutex);
102 ret = iwl_mvm_send_cmd(mvm, &cmd);
103 mutex_unlock(&mvm->mutex);
104 if (ret)
105 return ERR_PTR(ret);
106
107 if (WARN_ON_ONCE(iwl_rx_packet_payload_len(cmd.resp_pkt) != resp_size))
108 return ERR_PTR(-EIO);
109
110 resp = kzalloc(resp_size, GFP_KERNEL);
111 if (!resp)
112 return ERR_PTR(-ENOMEM);
113
114 memcpy(resp, cmd.resp_pkt->data, resp_size);
115
116 iwl_free_resp(&cmd);
117 return resp;
118 }
119