From: Sathishkumar Muruganandam <[email protected]> Added a debugfs file "fw_test" to configure the tx parameters through WMI_FWTEST_CMD
Usage: cat /sys/kernel/debug/ieee80211/phy0/ath10k/fw_test echo <param id> <val> > /sys/kernel/debug/ieee80211/phy0/ath10k/fw_test Signed-off-by: Sathishkumar Muruganandam <[email protected]> Signed-off-by: Anilkumar Kolli <[email protected]> --- drivers/net/wireless/ath/ath10k/core.h | 3 ++ drivers/net/wireless/ath/ath10k/debug.c | 81 +++++++++++++++++++++++++++++++ 2 files changed, 84 insertions(+) diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h index fe6b30356d3b..2db734138877 100644 --- a/drivers/net/wireless/ath/ath10k/core.h +++ b/drivers/net/wireless/ath/ath10k/core.h @@ -1,6 +1,7 @@ /* * Copyright (c) 2005-2011 Atheros Communications Inc. * Copyright (c) 2011-2017 Qualcomm Atheros, Inc. + * Copyright (c) 2018, The Linux Foundation. All rights reserved. * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -496,6 +497,8 @@ struct ath10k_debug { u32 reg_addr; u32 nf_cal_period; void *cal_data; + u32 fw_test_param_id; + u32 fw_test_param_value; }; enum ath10k_state { diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c index 554cd7856cb6..245237a6660b 100644 --- a/drivers/net/wireless/ath/ath10k/debug.c +++ b/drivers/net/wireless/ath/ath10k/debug.c @@ -2088,6 +2088,83 @@ static ssize_t ath10k_read_peer_stats(struct file *file, char __user *ubuf, .open = simple_open }; +static ssize_t ath10k_read_fops_fw_test(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + const char buf[] = + "Commands used for FW test'\n" + "Syntax example:\n" + "echo 5 0 > /sys/kernel/debug/ieee80211/phy0/ath10k/fw_test'\n"; + + return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); +} + +/* fw_test support + */ +static ssize_t ath10k_write_fw_test(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath10k *ar = file->private_data; + char buf[32] = {0}; + ssize_t rc; + u32 param_id; + u32 param_value; + int ret; + + rc = simple_write_to_buffer(buf, sizeof(buf) - 1, + ppos, user_buf, count); + if (rc < 0) + return rc; + + buf[*ppos - 1] = '\0'; + + ret = sscanf(buf, "%u %x", ¶m_id, ¶m_value); + + if (ret != 2) + return -EINVAL; + + mutex_lock(&ar->conf_mutex); + + if (ar->state != ATH10K_STATE_ON && + ar->state != ATH10K_STATE_RESTARTED) { + ret = -ENETDOWN; + goto exit; + } + + if (param_id) { + ar->debug.fw_test_param_id = param_id; + ar->debug.fw_test_param_value = param_value; + } else { + ath10k_warn(ar, "Enter a valid param ID!"); + ret = -EINVAL; + goto exit; + } + + ret = ath10k_wmi_fw_test(ar, ar->debug.fw_test_param_id, + ar->debug.fw_test_param_value); + + if (ret) { + ath10k_warn(ar, "failed to do fw_test: %d\n", ret); + goto exit; + } + + ret = count; + +exit: + mutex_unlock(&ar->conf_mutex); + return ret; +} + +static const struct file_operations fops_fw_test = { + .read = ath10k_read_fops_fw_test, + .write = ath10k_write_fw_test, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + static ssize_t ath10k_debug_fw_checksums_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) @@ -2258,6 +2335,10 @@ int ath10k_debug_register(struct ath10k *ar) debugfs_create_file("fw_checksums", 0400, ar->debug.debugfs_phy, ar, &fops_fw_checksums); + if (test_bit(WMI_SERVICE_FWTEST, ar->wmi.svc_map)) + debugfs_create_file("fw_test", 0600, ar->debug.debugfs_phy, ar, + &fops_fw_test); + return 0; } -- 1.7.9.5
