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path: root/drivers/net/wireless/iwlwifi/iwl-drv.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-drv.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-drv.c151
1 files changed, 119 insertions, 32 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c
index 17485e715424..05302d6f989f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.c
@@ -67,9 +67,11 @@
67 67
68#include "iwl-drv.h" 68#include "iwl-drv.h"
69#include "iwl-trans.h" 69#include "iwl-trans.h"
70#include "iwl-shared.h"
71#include "iwl-op-mode.h" 70#include "iwl-op-mode.h"
72#include "iwl-agn-hw.h" 71#include "iwl-agn-hw.h"
72#include "iwl-fw.h"
73#include "iwl-config.h"
74#include "iwl-modparams.h"
73 75
74/* private includes */ 76/* private includes */
75#include "iwl-fw-file.h" 77#include "iwl-fw-file.h"
@@ -77,8 +79,10 @@
77/** 79/**
78 * struct iwl_drv - drv common data 80 * struct iwl_drv - drv common data
79 * @fw: the iwl_fw structure 81 * @fw: the iwl_fw structure
80 * @shrd: pointer to common shared structure
81 * @op_mode: the running op_mode 82 * @op_mode: the running op_mode
83 * @trans: transport layer
84 * @dev: for debug prints only
85 * @cfg: configuration struct
82 * @fw_index: firmware revision to try loading 86 * @fw_index: firmware revision to try loading
83 * @firmware_name: composite filename of ucode file to load 87 * @firmware_name: composite filename of ucode file to load
84 * @request_firmware_complete: the firmware has been obtained from user space 88 * @request_firmware_complete: the firmware has been obtained from user space
@@ -86,8 +90,10 @@
86struct iwl_drv { 90struct iwl_drv {
87 struct iwl_fw fw; 91 struct iwl_fw fw;
88 92
89 struct iwl_shared *shrd;
90 struct iwl_op_mode *op_mode; 93 struct iwl_op_mode *op_mode;
94 struct iwl_trans *trans;
95 struct device *dev;
96 const struct iwl_cfg *cfg;
91 97
92 int fw_index; /* firmware we're trying to load */ 98 int fw_index; /* firmware we're trying to load */
93 char firmware_name[25]; /* name of firmware file to load */ 99 char firmware_name[25]; /* name of firmware file to load */
@@ -110,7 +116,7 @@ struct fw_sec {
110static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc) 116static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
111{ 117{
112 if (desc->v_addr) 118 if (desc->v_addr)
113 dma_free_coherent(trans(drv)->dev, desc->len, 119 dma_free_coherent(drv->trans->dev, desc->len,
114 desc->v_addr, desc->p_addr); 120 desc->v_addr, desc->p_addr);
115 desc->v_addr = NULL; 121 desc->v_addr = NULL;
116 desc->len = 0; 122 desc->len = 0;
@@ -138,7 +144,7 @@ static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
138 return -EINVAL; 144 return -EINVAL;
139 } 145 }
140 146
141 desc->v_addr = dma_alloc_coherent(trans(drv)->dev, sec->size, 147 desc->v_addr = dma_alloc_coherent(drv->trans->dev, sec->size,
142 &desc->p_addr, GFP_KERNEL); 148 &desc->p_addr, GFP_KERNEL);
143 if (!desc->v_addr) 149 if (!desc->v_addr)
144 return -ENOMEM; 150 return -ENOMEM;
@@ -156,8 +162,7 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context);
156 162
157static int iwl_request_firmware(struct iwl_drv *drv, bool first) 163static int iwl_request_firmware(struct iwl_drv *drv, bool first)
158{ 164{
159 const struct iwl_cfg *cfg = cfg(drv); 165 const char *name_pre = drv->cfg->fw_name_pre;
160 const char *name_pre = cfg->fw_name_pre;
161 char tag[8]; 166 char tag[8];
162 167
163 if (first) { 168 if (first) {
@@ -166,14 +171,14 @@ static int iwl_request_firmware(struct iwl_drv *drv, bool first)
166 strcpy(tag, UCODE_EXPERIMENTAL_TAG); 171 strcpy(tag, UCODE_EXPERIMENTAL_TAG);
167 } else if (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) { 172 } else if (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) {
168#endif 173#endif
169 drv->fw_index = cfg->ucode_api_max; 174 drv->fw_index = drv->cfg->ucode_api_max;
170 sprintf(tag, "%d", drv->fw_index); 175 sprintf(tag, "%d", drv->fw_index);
171 } else { 176 } else {
172 drv->fw_index--; 177 drv->fw_index--;
173 sprintf(tag, "%d", drv->fw_index); 178 sprintf(tag, "%d", drv->fw_index);
174 } 179 }
175 180
176 if (drv->fw_index < cfg->ucode_api_min) { 181 if (drv->fw_index < drv->cfg->ucode_api_min) {
177 IWL_ERR(drv, "no suitable firmware found!\n"); 182 IWL_ERR(drv, "no suitable firmware found!\n");
178 return -ENOENT; 183 return -ENOENT;
179 } 184 }
@@ -186,7 +191,7 @@ static int iwl_request_firmware(struct iwl_drv *drv, bool first)
186 drv->firmware_name); 191 drv->firmware_name);
187 192
188 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name, 193 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
189 trans(drv)->dev, 194 drv->trans->dev,
190 GFP_KERNEL, drv, iwl_ucode_callback); 195 GFP_KERNEL, drv, iwl_ucode_callback);
191} 196}
192 197
@@ -725,14 +730,13 @@ static int validate_sec_sizes(struct iwl_drv *drv,
725static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) 730static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
726{ 731{
727 struct iwl_drv *drv = context; 732 struct iwl_drv *drv = context;
728 const struct iwl_cfg *cfg = cfg(drv);
729 struct iwl_fw *fw = &drv->fw; 733 struct iwl_fw *fw = &drv->fw;
730 struct iwl_ucode_header *ucode; 734 struct iwl_ucode_header *ucode;
731 int err; 735 int err;
732 struct iwl_firmware_pieces pieces; 736 struct iwl_firmware_pieces pieces;
733 const unsigned int api_max = cfg->ucode_api_max; 737 const unsigned int api_max = drv->cfg->ucode_api_max;
734 unsigned int api_ok = cfg->ucode_api_ok; 738 unsigned int api_ok = drv->cfg->ucode_api_ok;
735 const unsigned int api_min = cfg->ucode_api_min; 739 const unsigned int api_min = drv->cfg->ucode_api_min;
736 u32 api_ver; 740 u32 api_ver;
737 int i; 741 int i;
738 742
@@ -811,7 +815,7 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
811 * In mvm uCode there is no difference between data and instructions 815 * In mvm uCode there is no difference between data and instructions
812 * sections. 816 * sections.
813 */ 817 */
814 if (!fw->mvm_fw && validate_sec_sizes(drv, &pieces, cfg)) 818 if (!fw->mvm_fw && validate_sec_sizes(drv, &pieces, drv->cfg))
815 goto try_again; 819 goto try_again;
816 820
817 /* Allocate ucode buffers for card's bus-master loading ... */ 821 /* Allocate ucode buffers for card's bus-master loading ... */
@@ -835,14 +839,14 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
835 fw->init_evtlog_size = (pieces.init_evtlog_size - 16)/12; 839 fw->init_evtlog_size = (pieces.init_evtlog_size - 16)/12;
836 else 840 else
837 fw->init_evtlog_size = 841 fw->init_evtlog_size =
838 cfg->base_params->max_event_log_size; 842 drv->cfg->base_params->max_event_log_size;
839 fw->init_errlog_ptr = pieces.init_errlog_ptr; 843 fw->init_errlog_ptr = pieces.init_errlog_ptr;
840 fw->inst_evtlog_ptr = pieces.inst_evtlog_ptr; 844 fw->inst_evtlog_ptr = pieces.inst_evtlog_ptr;
841 if (pieces.inst_evtlog_size) 845 if (pieces.inst_evtlog_size)
842 fw->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12; 846 fw->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12;
843 else 847 else
844 fw->inst_evtlog_size = 848 fw->inst_evtlog_size =
845 cfg->base_params->max_event_log_size; 849 drv->cfg->base_params->max_event_log_size;
846 fw->inst_errlog_ptr = pieces.inst_errlog_ptr; 850 fw->inst_errlog_ptr = pieces.inst_errlog_ptr;
847 851
848 /* 852 /*
@@ -858,7 +862,7 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
858 release_firmware(ucode_raw); 862 release_firmware(ucode_raw);
859 complete(&drv->request_firmware_complete); 863 complete(&drv->request_firmware_complete);
860 864
861 drv->op_mode = iwl_dvm_ops.start(drv->shrd->trans, &drv->fw); 865 drv->op_mode = iwl_dvm_ops.start(drv->trans, drv->cfg, &drv->fw);
862 866
863 if (!drv->op_mode) 867 if (!drv->op_mode)
864 goto out_unbind; 868 goto out_unbind;
@@ -878,24 +882,23 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
878 release_firmware(ucode_raw); 882 release_firmware(ucode_raw);
879 out_unbind: 883 out_unbind:
880 complete(&drv->request_firmware_complete); 884 complete(&drv->request_firmware_complete);
881 device_release_driver(trans(drv)->dev); 885 device_release_driver(drv->trans->dev);
882} 886}
883 887
884int iwl_drv_start(struct iwl_shared *shrd, 888struct iwl_drv *iwl_drv_start(struct iwl_trans *trans,
885 struct iwl_trans *trans, const struct iwl_cfg *cfg) 889 const struct iwl_cfg *cfg)
886{ 890{
887 struct iwl_drv *drv; 891 struct iwl_drv *drv;
888 int ret; 892 int ret;
889 893
890 shrd->cfg = cfg;
891
892 drv = kzalloc(sizeof(*drv), GFP_KERNEL); 894 drv = kzalloc(sizeof(*drv), GFP_KERNEL);
893 if (!drv) { 895 if (!drv) {
894 dev_printk(KERN_ERR, trans->dev, "Couldn't allocate iwl_drv"); 896 dev_printk(KERN_ERR, trans->dev, "Couldn't allocate iwl_drv");
895 return -ENOMEM; 897 return NULL;
896 } 898 }
897 drv->shrd = shrd; 899 drv->trans = trans;
898 shrd->drv = drv; 900 drv->dev = trans->dev;
901 drv->cfg = cfg;
899 902
900 init_completion(&drv->request_firmware_complete); 903 init_completion(&drv->request_firmware_complete);
901 904
@@ -904,16 +907,14 @@ int iwl_drv_start(struct iwl_shared *shrd,
904 if (ret) { 907 if (ret) {
905 dev_printk(KERN_ERR, trans->dev, "Couldn't request the fw"); 908 dev_printk(KERN_ERR, trans->dev, "Couldn't request the fw");
906 kfree(drv); 909 kfree(drv);
907 shrd->drv = NULL; 910 drv = NULL;
908 } 911 }
909 912
910 return ret; 913 return drv;
911} 914}
912 915
913void iwl_drv_stop(struct iwl_shared *shrd) 916void iwl_drv_stop(struct iwl_drv *drv)
914{ 917{
915 struct iwl_drv *drv = shrd->drv;
916
917 wait_for_completion(&drv->request_firmware_complete); 918 wait_for_completion(&drv->request_firmware_complete);
918 919
919 /* op_mode can be NULL if its start failed */ 920 /* op_mode can be NULL if its start failed */
@@ -923,5 +924,91 @@ void iwl_drv_stop(struct iwl_shared *shrd)
923 iwl_dealloc_ucode(drv); 924 iwl_dealloc_ucode(drv);
924 925
925 kfree(drv); 926 kfree(drv);
926 shrd->drv = NULL;
927} 927}
928
929
930/* shared module parameters */
931struct iwl_mod_params iwlwifi_mod_params = {
932 .amsdu_size_8K = 1,
933 .restart_fw = 1,
934 .plcp_check = true,
935 .bt_coex_active = true,
936 .power_level = IWL_POWER_INDEX_1,
937 .bt_ch_announce = true,
938 .auto_agg = true,
939 /* the rest are 0 by default */
940};
941
942#ifdef CONFIG_IWLWIFI_DEBUG
943module_param_named(debug, iwlwifi_mod_params.debug_level, uint,
944 S_IRUGO | S_IWUSR);
945MODULE_PARM_DESC(debug, "debug output mask");
946#endif
947
948module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO);
949MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
950module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO);
951MODULE_PARM_DESC(11n_disable,
952 "disable 11n functionality, bitmap: 1: full, 2: agg TX, 4: agg RX");
953module_param_named(amsdu_size_8K, iwlwifi_mod_params.amsdu_size_8K,
954 int, S_IRUGO);
955MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
956module_param_named(fw_restart, iwlwifi_mod_params.restart_fw, int, S_IRUGO);
957MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
958
959module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling,
960 int, S_IRUGO);
961MODULE_PARM_DESC(antenna_coupling,
962 "specify antenna coupling in dB (defualt: 0 dB)");
963
964module_param_named(bt_ch_inhibition, iwlwifi_mod_params.bt_ch_announce,
965 bool, S_IRUGO);
966MODULE_PARM_DESC(bt_ch_inhibition,
967 "Enable BT channel inhibition (default: enable)");
968
969module_param_named(plcp_check, iwlwifi_mod_params.plcp_check, bool, S_IRUGO);
970MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])");
971
972module_param_named(wd_disable, iwlwifi_mod_params.wd_disable, int, S_IRUGO);
973MODULE_PARM_DESC(wd_disable,
974 "Disable stuck queue watchdog timer 0=system default, "
975 "1=disable, 2=enable (default: 0)");
976
977/*
978 * set bt_coex_active to true, uCode will do kill/defer
979 * every time the priority line is asserted (BT is sending signals on the
980 * priority line in the PCIx).
981 * set bt_coex_active to false, uCode will ignore the BT activity and
982 * perform the normal operation
983 *
984 * User might experience transmit issue on some platform due to WiFi/BT
985 * co-exist problem. The possible behaviors are:
986 * Able to scan and finding all the available AP
987 * Not able to associate with any AP
988 * On those platforms, WiFi communication can be restored by set
989 * "bt_coex_active" module parameter to "false"
990 *
991 * default: bt_coex_active = true (BT_COEX_ENABLE)
992 */
993module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
994 bool, S_IRUGO);
995MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
996
997module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO);
998MODULE_PARM_DESC(led_mode, "0=system default, "
999 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1000
1001module_param_named(power_save, iwlwifi_mod_params.power_save,
1002 bool, S_IRUGO);
1003MODULE_PARM_DESC(power_save,
1004 "enable WiFi power management (default: disable)");
1005
1006module_param_named(power_level, iwlwifi_mod_params.power_level,
1007 int, S_IRUGO);
1008MODULE_PARM_DESC(power_level,
1009 "default power save level (range from 1 - 5, default: 1)");
1010
1011module_param_named(auto_agg, iwlwifi_mod_params.auto_agg,
1012 bool, S_IRUGO);
1013MODULE_PARM_DESC(auto_agg,
1014 "enable agg w/o check traffic load (default: enable)");