iwlwifi: define the .ucode file format for debug
Debug information can be appended to the firmware file. This
information will be used by the driver to enable / disable
debugging features in the firmware.
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c
index 2c6e830..a53b534 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.c
@@ -184,6 +184,11 @@
static void iwl_dealloc_ucode(struct iwl_drv *drv)
{
int i;
+
+ kfree(drv->fw.dbg_dest_tlv);
+ for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++)
+ kfree(drv->fw.dbg_conf_tlv[i]);
+
for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
iwl_free_fw_img(drv, drv->fw.img + i);
}
@@ -308,6 +313,11 @@
u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
+
+ /* FW debug data parsed for driver usage */
+ struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
+ struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_MAX];
+ size_t dbg_conf_tlv_len[FW_DBG_MAX];
};
/*
@@ -853,6 +863,58 @@
capa->n_scan_channels =
le32_to_cpup((__le32 *)tlv_data);
break;
+ case IWL_UCODE_TLV_FW_DBG_DEST: {
+ struct iwl_fw_dbg_dest_tlv *dest = (void *)tlv_data;
+
+ if (pieces->dbg_dest_tlv) {
+ IWL_ERR(drv,
+ "dbg destination ignored, already exists\n");
+ break;
+ }
+
+ pieces->dbg_dest_tlv = dest;
+ IWL_INFO(drv, "Found debug destination: %s\n",
+ get_fw_dbg_mode_string(dest->monitor_mode));
+
+ drv->fw.dbg_dest_reg_num =
+ tlv_len - offsetof(struct iwl_fw_dbg_dest_tlv,
+ reg_ops);
+ drv->fw.dbg_dest_reg_num /=
+ sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]);
+
+ break;
+ }
+ case IWL_UCODE_TLV_FW_DBG_CONF: {
+ struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
+
+ if (!pieces->dbg_dest_tlv) {
+ IWL_ERR(drv,
+ "Ignore dbg config %d - no destination configured\n",
+ conf->id);
+ break;
+ }
+
+ if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) {
+ IWL_ERR(drv,
+ "Skip unknown configuration: %d\n",
+ conf->id);
+ break;
+ }
+
+ if (pieces->dbg_conf_tlv[conf->id]) {
+ IWL_ERR(drv,
+ "Ignore duplicate dbg config %d\n",
+ conf->id);
+ break;
+ }
+
+ IWL_INFO(drv, "Found debug configuration: %d\n",
+ conf->id);
+
+ pieces->dbg_conf_tlv[conf->id] = conf;
+ pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
+ break;
+ }
default:
IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
break;
@@ -996,7 +1058,7 @@
struct iwl_ucode_header *ucode;
struct iwlwifi_opmode_table *op;
int err;
- struct iwl_firmware_pieces pieces;
+ struct iwl_firmware_pieces *pieces;
const unsigned int api_max = drv->cfg->ucode_api_max;
unsigned int api_ok = drv->cfg->ucode_api_ok;
const unsigned int api_min = drv->cfg->ucode_api_min;
@@ -1013,7 +1075,9 @@
if (!api_ok)
api_ok = api_max;
- memset(&pieces, 0, sizeof(pieces));
+ pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
+ if (!pieces)
+ return;
if (!ucode_raw) {
if (drv->fw_index <= api_ok)
@@ -1036,10 +1100,10 @@
ucode = (struct iwl_ucode_header *)ucode_raw->data;
if (ucode->ver)
- err = iwl_parse_v1_v2_firmware(drv, ucode_raw, &pieces);
+ err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
else
- err = iwl_parse_tlv_firmware(drv, ucode_raw, &pieces,
- &fw->ucode_capa);
+ err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
+ &fw->ucode_capa);
if (err)
goto try_again;
@@ -1079,7 +1143,7 @@
* In mvm uCode there is no difference between data and instructions
* sections.
*/
- if (!fw->mvm_fw && validate_sec_sizes(drv, &pieces, drv->cfg))
+ if (!fw->mvm_fw && validate_sec_sizes(drv, pieces, drv->cfg))
goto try_again;
/* Allocate ucode buffers for card's bus-master loading ... */
@@ -1088,9 +1152,33 @@
* 1) unmodified from disk
* 2) backup cache for save/restore during power-downs */
for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
- if (iwl_alloc_ucode(drv, &pieces, i))
+ if (iwl_alloc_ucode(drv, pieces, i))
goto out_free_fw;
+ if (pieces->dbg_dest_tlv) {
+ drv->fw.dbg_dest_tlv =
+ kmemdup(pieces->dbg_dest_tlv,
+ sizeof(*pieces->dbg_dest_tlv) +
+ sizeof(pieces->dbg_dest_tlv->reg_ops[0]) *
+ drv->fw.dbg_dest_reg_num, GFP_KERNEL);
+
+ if (!drv->fw.dbg_dest_tlv)
+ goto out_free_fw;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) {
+ if (pieces->dbg_conf_tlv[i]) {
+ drv->fw.dbg_conf_tlv_len[i] =
+ pieces->dbg_conf_tlv_len[i];
+ drv->fw.dbg_conf_tlv[i] =
+ kmemdup(pieces->dbg_conf_tlv[i],
+ drv->fw.dbg_conf_tlv_len[i],
+ GFP_KERNEL);
+ if (!drv->fw.dbg_conf_tlv[i])
+ goto out_free_fw;
+ }
+ }
+
/* Now that we can no longer fail, copy information */
/*
@@ -1098,20 +1186,20 @@
* for each event, which is of mode 1 (including timestamp) for all
* new microcodes that include this information.
*/
- fw->init_evtlog_ptr = pieces.init_evtlog_ptr;
- if (pieces.init_evtlog_size)
- fw->init_evtlog_size = (pieces.init_evtlog_size - 16)/12;
+ fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
+ if (pieces->init_evtlog_size)
+ fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
else
fw->init_evtlog_size =
drv->cfg->base_params->max_event_log_size;
- fw->init_errlog_ptr = pieces.init_errlog_ptr;
- fw->inst_evtlog_ptr = pieces.inst_evtlog_ptr;
- if (pieces.inst_evtlog_size)
- fw->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12;
+ fw->init_errlog_ptr = pieces->init_errlog_ptr;
+ fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
+ if (pieces->inst_evtlog_size)
+ fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
else
fw->inst_evtlog_size =
drv->cfg->base_params->max_event_log_size;
- fw->inst_errlog_ptr = pieces.inst_errlog_ptr;
+ fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
/*
* figure out the offset of chain noise reset and gain commands
@@ -1213,10 +1301,12 @@
iwl_req_fw_callback(ucode_raw, context);
}
+ kfree(pieces);
return;
try_again:
/* try next, if any */
+ kfree(pieces);
release_firmware(ucode_raw);
if (iwl_request_firmware(drv, false))
goto out_unbind;
@@ -1227,6 +1317,7 @@
iwl_dealloc_ucode(drv);
release_firmware(ucode_raw);
out_unbind:
+ kfree(pieces);
complete(&drv->request_firmware_complete);
device_release_driver(drv->trans->dev);
}