diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/debug.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/debug.c | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c index bf033f46f8aa..f316efdbd6c3 100644 --- a/drivers/net/wireless/ath/ath10k/debug.c +++ b/drivers/net/wireless/ath/ath10k/debug.c @@ -1843,6 +1843,233 @@ static const struct file_operations fops_nf_cal_period = { .llseek = default_llseek, }; +#define ATH10K_TPC_CONFIG_BUF_SIZE (1024 * 1024) + +static int ath10k_debug_tpc_stats_request(struct ath10k *ar) +{ + int ret; + unsigned long time_left; + + lockdep_assert_held(&ar->conf_mutex); + + reinit_completion(&ar->debug.tpc_complete); + + ret = ath10k_wmi_pdev_get_tpc_config(ar, WMI_TPC_CONFIG_PARAM); + if (ret) { + ath10k_warn(ar, "failed to request tpc config: %d\n", ret); + return ret; + } + + time_left = wait_for_completion_timeout(&ar->debug.tpc_complete, + 1 * HZ); + if (time_left == 0) + return -ETIMEDOUT; + + return 0; +} + +void ath10k_debug_tpc_stats_process(struct ath10k *ar, + struct ath10k_tpc_stats *tpc_stats) +{ + spin_lock_bh(&ar->data_lock); + + kfree(ar->debug.tpc_stats); + ar->debug.tpc_stats = tpc_stats; + complete(&ar->debug.tpc_complete); + + spin_unlock_bh(&ar->data_lock); +} + +static void ath10k_tpc_stats_print(struct ath10k_tpc_stats *tpc_stats, + unsigned int j, char *buf, unsigned int *len) +{ + unsigned int i, buf_len; + static const char table_str[][5] = { "CDD", + "STBC", + "TXBF" }; + static const char pream_str[][6] = { "CCK", + "OFDM", + "HT20", + "HT40", + "VHT20", + "VHT40", + "VHT80", + "HTCUP" }; + + buf_len = ATH10K_TPC_CONFIG_BUF_SIZE; + *len += scnprintf(buf + *len, buf_len - *len, + "********************************\n"); + *len += scnprintf(buf + *len, buf_len - *len, + "******************* %s POWER TABLE ****************\n", + table_str[j]); + *len += scnprintf(buf + *len, buf_len - *len, + "********************************\n"); + *len += scnprintf(buf + *len, buf_len - *len, + "No. Preamble Rate_code tpc_value1 tpc_value2 tpc_value3\n"); + + for (i = 0; i < tpc_stats->rate_max; i++) { + *len += scnprintf(buf + *len, buf_len - *len, + "%8d %s 0x%2x %s\n", i, + pream_str[tpc_stats->tpc_table[j].pream_idx[i]], + tpc_stats->tpc_table[j].rate_code[i], + tpc_stats->tpc_table[j].tpc_value[i]); + } + + *len += scnprintf(buf + *len, buf_len - *len, + "***********************************\n"); +} + +static void ath10k_tpc_stats_fill(struct ath10k *ar, + struct ath10k_tpc_stats *tpc_stats, + char *buf) +{ + unsigned int len, j, buf_len; + + len = 0; + buf_len = ATH10K_TPC_CONFIG_BUF_SIZE; + + spin_lock_bh(&ar->data_lock); + + if (!tpc_stats) { + ath10k_warn(ar, "failed to get tpc stats\n"); + goto unlock; + } + + len += scnprintf(buf + len, buf_len - len, "\n"); + len += scnprintf(buf + len, buf_len - len, + "*************************************\n"); + len += scnprintf(buf + len, buf_len - len, + "TPC config for channel %4d mode %d\n", + tpc_stats->chan_freq, + tpc_stats->phy_mode); + len += scnprintf(buf + len, buf_len - len, + "*************************************\n"); + len += scnprintf(buf + len, buf_len - len, + "CTL = 0x%2x Reg. Domain = %2d\n", + tpc_stats->ctl, + tpc_stats->reg_domain); + len += scnprintf(buf + len, buf_len - len, + "Antenna Gain = %2d Reg. Max Antenna Gain = %2d\n", + tpc_stats->twice_antenna_gain, + tpc_stats->twice_antenna_reduction); + len += scnprintf(buf + len, buf_len - len, + "Power Limit = %2d Reg. Max Power = %2d\n", + tpc_stats->power_limit, + tpc_stats->twice_max_rd_power / 2); + len += scnprintf(buf + len, buf_len - len, + "Num tx chains = %2d Num supported rates = %2d\n", + tpc_stats->num_tx_chain, + tpc_stats->rate_max); + + for (j = 0; j < tpc_stats->num_tx_chain ; j++) { + switch (j) { + case WMI_TPC_TABLE_TYPE_CDD: + if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) { + len += scnprintf(buf + len, buf_len - len, + "CDD not supported\n"); + break; + } + + ath10k_tpc_stats_print(tpc_stats, j, buf, &len); + break; + case WMI_TPC_TABLE_TYPE_STBC: + if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) { + len += scnprintf(buf + len, buf_len - len, + "STBC not supported\n"); + break; + } + + ath10k_tpc_stats_print(tpc_stats, j, buf, &len); + break; + case WMI_TPC_TABLE_TYPE_TXBF: + if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) { + len += scnprintf(buf + len, buf_len - len, + "TXBF not supported\n***************************\n"); + break; + } + + ath10k_tpc_stats_print(tpc_stats, j, buf, &len); + break; + default: + len += scnprintf(buf + len, buf_len - len, + "Invalid Type\n"); + break; + } + } + +unlock: + spin_unlock_bh(&ar->data_lock); + + if (len >= buf_len) + buf[len - 1] = 0; + else + buf[len] = 0; +} + +static int ath10k_tpc_stats_open(struct inode *inode, struct file *file) +{ + struct ath10k *ar = inode->i_private; + void *buf = NULL; + int ret; + + mutex_lock(&ar->conf_mutex); + + if (ar->state != ATH10K_STATE_ON) { + ret = -ENETDOWN; + goto err_unlock; + } + + buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE); + if (!buf) { + ret = -ENOMEM; + goto err_unlock; + } + + ret = ath10k_debug_tpc_stats_request(ar); + if (ret) { + ath10k_warn(ar, "failed to request tpc config stats: %d\n", + ret); + goto err_free; + } + + ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf); + file->private_data = buf; + + mutex_unlock(&ar->conf_mutex); + return 0; + +err_free: + vfree(buf); + +err_unlock: + mutex_unlock(&ar->conf_mutex); + return ret; +} + +static int ath10k_tpc_stats_release(struct inode *inode, struct file *file) +{ + vfree(file->private_data); + + return 0; +} + +static ssize_t ath10k_tpc_stats_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + const char *buf = file->private_data; + unsigned int len = strlen(buf); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static const struct file_operations fops_tpc_stats = { + .open = ath10k_tpc_stats_open, + .release = ath10k_tpc_stats_release, + .read = ath10k_tpc_stats_read, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + int ath10k_debug_start(struct ath10k *ar) { int ret; @@ -2111,6 +2338,8 @@ void ath10k_debug_destroy(struct ath10k *ar) ar->debug.fw_crash_data = NULL; ath10k_debug_fw_stats_reset(ar); + + kfree(ar->debug.tpc_stats); } int ath10k_debug_register(struct ath10k *ar) @@ -2127,6 +2356,7 @@ int ath10k_debug_register(struct ath10k *ar) INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork, ath10k_debug_htt_stats_dwork); + init_completion(&ar->debug.tpc_complete); init_completion(&ar->debug.fw_stats_complete); debugfs_create_file("fw_stats", S_IRUSR, ar->debug.debugfs_phy, ar, @@ -2195,6 +2425,9 @@ int ath10k_debug_register(struct ath10k *ar) debugfs_create_file("quiet_period", S_IRUGO | S_IWUSR, ar->debug.debugfs_phy, ar, &fops_quiet_period); + debugfs_create_file("tpc_stats", S_IRUSR, + ar->debug.debugfs_phy, ar, &fops_tpc_stats); + return 0; } |