From 70d6babbc9f5b85e8aa52eadf5cca18ca8a3353e Mon Sep 17 00:00:00 2001 From: Eliad Peller Date: Tue, 5 Nov 2013 14:45:16 +0200 Subject: [PATCH] iwlwifi: mvm: add d0i3_refs debugfs file Add d0i3_refs debugfs file that prints the currently taken mvm D0i3 refs. Signed-off-by: Eliad Peller Reviewed-by: Johannes Berg Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/debugfs.c | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c index 6ddc18896608..2253d5b2a59c 100644 --- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c @@ -838,6 +838,34 @@ static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf, } #endif +#define PRINT_MVM_REF(ref) do { \ + if (test_bit(ref, mvm->ref_bitmap)) \ + pos += scnprintf(buf + pos, bufsz - pos, \ + "\t(0x%lx) %s\n", \ + BIT(ref), #ref); \ +} while (0) + +static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_mvm *mvm = file->private_data; + int pos = 0; + char buf[256]; + const size_t bufsz = sizeof(buf); + + pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%lx\n", + mvm->ref_bitmap[0]); + + PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN); + PRINT_MVM_REF(IWL_MVM_REF_SCAN); + PRINT_MVM_REF(IWL_MVM_REF_ROC); + PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT); + PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS); + + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); +} + #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ @@ -862,6 +890,7 @@ MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); +MVM_DEBUGFS_READ_FILE_OPS(d0i3_refs); #ifdef CONFIG_IWLWIFI_BCAST_FILTERING MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256); @@ -893,6 +922,7 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR); MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, S_IWUSR | S_IRUSR); + MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR); #ifdef CONFIG_IWLWIFI_BCAST_FILTERING if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) { -- 2.30.2