diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/nvm.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/nvm.c | 136 |
1 files changed, 22 insertions, 114 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c b/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c index 25a98401a64f..eade099b6dbf 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c @@ -66,8 +66,6 @@ *****************************************************************************/ #include <linux/firmware.h> #include <linux/rtnetlink.h> -#include <linux/pci.h> -#include <linux/acpi.h> #include "iwl-trans.h" #include "iwl-csr.h" #include "mvm.h" @@ -667,8 +665,7 @@ iwl_mvm_update_mcc(struct iwl_mvm *mvm, const char *alpha2, .mcc = cpu_to_le16(alpha2[0] << 8 | alpha2[1]), .source_id = (u8)src_id, }; - struct iwl_mcc_update_resp *mcc_resp, *resp_cp = NULL; - struct iwl_mcc_update_resp_v1 *mcc_resp_v1 = NULL; + struct iwl_mcc_update_resp *resp_cp; struct iwl_rx_packet *pkt; struct iwl_host_cmd cmd = { .id = MCC_UPDATE_CMD, @@ -701,34 +698,36 @@ iwl_mvm_update_mcc(struct iwl_mvm *mvm, const char *alpha2, /* Extract MCC response */ if (resp_v2) { - mcc_resp = (void *)pkt->data; + struct iwl_mcc_update_resp *mcc_resp = (void *)pkt->data; + n_channels = __le32_to_cpu(mcc_resp->n_channels); + resp_len = sizeof(struct iwl_mcc_update_resp) + + n_channels * sizeof(__le32); + resp_cp = kmemdup(mcc_resp, resp_len, GFP_KERNEL); } else { - mcc_resp_v1 = (void *)pkt->data; + struct iwl_mcc_update_resp_v1 *mcc_resp_v1 = (void *)pkt->data; + n_channels = __le32_to_cpu(mcc_resp_v1->n_channels); + resp_len = sizeof(struct iwl_mcc_update_resp) + + n_channels * sizeof(__le32); + resp_cp = kzalloc(resp_len, GFP_KERNEL); + + if (resp_cp) { + resp_cp->status = mcc_resp_v1->status; + resp_cp->mcc = mcc_resp_v1->mcc; + resp_cp->cap = mcc_resp_v1->cap; + resp_cp->source_id = mcc_resp_v1->source_id; + resp_cp->n_channels = mcc_resp_v1->n_channels; + memcpy(resp_cp->channels, mcc_resp_v1->channels, + n_channels * sizeof(__le32)); + } } - resp_len = sizeof(struct iwl_mcc_update_resp) + n_channels * - sizeof(__le32); - - resp_cp = kzalloc(resp_len, GFP_KERNEL); if (!resp_cp) { ret = -ENOMEM; goto exit; } - if (resp_v2) { - memcpy(resp_cp, mcc_resp, resp_len); - } else { - resp_cp->status = mcc_resp_v1->status; - resp_cp->mcc = mcc_resp_v1->mcc; - resp_cp->cap = mcc_resp_v1->cap; - resp_cp->source_id = mcc_resp_v1->source_id; - resp_cp->n_channels = mcc_resp_v1->n_channels; - memcpy(resp_cp->channels, mcc_resp_v1->channels, - n_channels * sizeof(__le32)); - } - status = le32_to_cpu(resp_cp->status); mcc = le16_to_cpu(resp_cp->mcc); @@ -751,97 +750,6 @@ exit: return resp_cp; } -#ifdef CONFIG_ACPI -#define WRD_METHOD "WRDD" -#define WRDD_WIFI (0x07) -#define WRDD_WIGIG (0x10) - -static u32 iwl_mvm_wrdd_get_mcc(struct iwl_mvm *mvm, union acpi_object *wrdd) -{ - union acpi_object *mcc_pkg, *domain_type, *mcc_value; - u32 i; - - if (wrdd->type != ACPI_TYPE_PACKAGE || - wrdd->package.count < 2 || - wrdd->package.elements[0].type != ACPI_TYPE_INTEGER || - wrdd->package.elements[0].integer.value != 0) { - IWL_DEBUG_LAR(mvm, "Unsupported wrdd structure\n"); - return 0; - } - - for (i = 1 ; i < wrdd->package.count ; ++i) { - mcc_pkg = &wrdd->package.elements[i]; - - if (mcc_pkg->type != ACPI_TYPE_PACKAGE || - mcc_pkg->package.count < 2 || - mcc_pkg->package.elements[0].type != ACPI_TYPE_INTEGER || - mcc_pkg->package.elements[1].type != ACPI_TYPE_INTEGER) { - mcc_pkg = NULL; - continue; - } - - domain_type = &mcc_pkg->package.elements[0]; - if (domain_type->integer.value == WRDD_WIFI) - break; - - mcc_pkg = NULL; - } - - if (mcc_pkg) { - mcc_value = &mcc_pkg->package.elements[1]; - return mcc_value->integer.value; - } - - return 0; -} - -static int iwl_mvm_get_bios_mcc(struct iwl_mvm *mvm, char *mcc) -{ - acpi_handle root_handle; - acpi_handle handle; - struct acpi_buffer wrdd = {ACPI_ALLOCATE_BUFFER, NULL}; - acpi_status status; - u32 mcc_val; - struct pci_dev *pdev = to_pci_dev(mvm->dev); - - root_handle = ACPI_HANDLE(&pdev->dev); - if (!root_handle) { - IWL_DEBUG_LAR(mvm, - "Could not retrieve root port ACPI handle\n"); - return -ENOENT; - } - - /* Get the method's handle */ - status = acpi_get_handle(root_handle, (acpi_string)WRD_METHOD, &handle); - if (ACPI_FAILURE(status)) { - IWL_DEBUG_LAR(mvm, "WRD method not found\n"); - return -ENOENT; - } - - /* Call WRDD with no arguments */ - status = acpi_evaluate_object(handle, NULL, NULL, &wrdd); - if (ACPI_FAILURE(status)) { - IWL_DEBUG_LAR(mvm, "WRDC invocation failed (0x%x)\n", status); - return -ENOENT; - } - - mcc_val = iwl_mvm_wrdd_get_mcc(mvm, wrdd.pointer); - kfree(wrdd.pointer); - if (!mcc_val) - return -ENOENT; - - mcc[0] = (mcc_val >> 8) & 0xff; - mcc[1] = mcc_val & 0xff; - mcc[2] = '\0'; - return 0; -} -#else /* CONFIG_ACPI */ -static int iwl_mvm_get_bios_mcc(struct iwl_mvm *mvm, char *mcc) -{ - return -ENOENT; -} -#endif - int iwl_mvm_init_mcc(struct iwl_mvm *mvm) { bool tlv_lar; @@ -885,7 +793,7 @@ int iwl_mvm_init_mcc(struct iwl_mvm *mvm) return -EIO; if (iwl_mvm_is_wifi_mcc_supported(mvm) && - !iwl_mvm_get_bios_mcc(mvm, mcc)) { + !iwl_get_bios_mcc(mvm->dev, mcc)) { kfree(regd); regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, mcc, MCC_SOURCE_BIOS, NULL); |
