diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/debug.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/debug.c | 305 | 
1 files changed, 304 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index 13ff9edc240..3714b971d18 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -17,6 +17,7 @@  #include <linux/slab.h>  #include <linux/vmalloc.h>  #include <linux/export.h> +#include <linux/relay.h>  #include <asm/unaligned.h>  #include "ath9k.h" @@ -861,7 +862,6 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf,  	RXS_ERR("RX-LENGTH-ERR", rx_len_err);  	RXS_ERR("RX-OOM-ERR", rx_oom_err);  	RXS_ERR("RX-RATE-ERR", rx_rate_err); -	RXS_ERR("RX-DROP-RXFLUSH", rx_drop_rxflush);  	RXS_ERR("RX-TOO-MANY-FRAGS", rx_too_many_frags_err);  	PHY_ERR("UNDERRUN ERR", ATH9K_PHYERR_UNDERRUN); @@ -895,6 +895,7 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf,  	RXS_ERR("RX-Bytes-All", rx_bytes_all);  	RXS_ERR("RX-Beacons", rx_beacons);  	RXS_ERR("RX-Frags", rx_frags); +	RXS_ERR("RX-Spectral", rx_spectral);  	if (len > size)  		len = size; @@ -966,6 +967,290 @@ static const struct file_operations fops_recv = {  	.llseek = default_llseek,  }; +static ssize_t read_file_spec_scan_ctl(struct file *file, char __user *user_buf, +				       size_t count, loff_t *ppos) +{ +	struct ath_softc *sc = file->private_data; +	char *mode = ""; +	unsigned int len; + +	switch (sc->spectral_mode) { +	case SPECTRAL_DISABLED: +		mode = "disable"; +		break; +	case SPECTRAL_BACKGROUND: +		mode = "background"; +		break; +	case SPECTRAL_CHANSCAN: +		mode = "chanscan"; +		break; +	case SPECTRAL_MANUAL: +		mode = "manual"; +		break; +	} +	len = strlen(mode); +	return simple_read_from_buffer(user_buf, count, ppos, mode, len); +} + +static ssize_t write_file_spec_scan_ctl(struct file *file, +					const char __user *user_buf, +					size_t count, loff_t *ppos) +{ +	struct ath_softc *sc = file->private_data; +	struct ath_common *common = ath9k_hw_common(sc->sc_ah); +	char buf[32]; +	ssize_t len; + +	len = min(count, sizeof(buf) - 1); +	if (copy_from_user(buf, user_buf, len)) +		return -EFAULT; + +	buf[len] = '\0'; + +	if (strncmp("trigger", buf, 7) == 0) { +		ath9k_spectral_scan_trigger(sc->hw); +	} else if (strncmp("background", buf, 9) == 0) { +		ath9k_spectral_scan_config(sc->hw, SPECTRAL_BACKGROUND); +		ath_dbg(common, CONFIG, "spectral scan: background mode enabled\n"); +	} else if (strncmp("chanscan", buf, 8) == 0) { +		ath9k_spectral_scan_config(sc->hw, SPECTRAL_CHANSCAN); +		ath_dbg(common, CONFIG, "spectral scan: channel scan mode enabled\n"); +	} else if (strncmp("manual", buf, 6) == 0) { +		ath9k_spectral_scan_config(sc->hw, SPECTRAL_MANUAL); +		ath_dbg(common, CONFIG, "spectral scan: manual mode enabled\n"); +	} else if (strncmp("disable", buf, 7) == 0) { +		ath9k_spectral_scan_config(sc->hw, SPECTRAL_DISABLED); +		ath_dbg(common, CONFIG, "spectral scan: disabled\n"); +	} else { +		return -EINVAL; +	} + +	return count; +} + +static const struct file_operations fops_spec_scan_ctl = { +	.read = read_file_spec_scan_ctl, +	.write = write_file_spec_scan_ctl, +	.open = simple_open, +	.owner = THIS_MODULE, +	.llseek = default_llseek, +}; + +static ssize_t read_file_spectral_short_repeat(struct file *file, +					       char __user *user_buf, +					       size_t count, loff_t *ppos) +{ +	struct ath_softc *sc = file->private_data; +	char buf[32]; +	unsigned int len; + +	len = sprintf(buf, "%d\n", sc->spec_config.short_repeat); +	return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static ssize_t write_file_spectral_short_repeat(struct file *file, +						const char __user *user_buf, +						size_t count, loff_t *ppos) +{ +	struct ath_softc *sc = file->private_data; +	unsigned long val; +	char buf[32]; +	ssize_t len; + +	len = min(count, sizeof(buf) - 1); +	if (copy_from_user(buf, user_buf, len)) +		return -EFAULT; + +	buf[len] = '\0'; +	if (kstrtoul(buf, 0, &val)) +		return -EINVAL; + +	if (val < 0 || val > 1) +		return -EINVAL; + +	sc->spec_config.short_repeat = val; +	return count; +} + +static const struct file_operations fops_spectral_short_repeat = { +	.read = read_file_spectral_short_repeat, +	.write = write_file_spectral_short_repeat, +	.open = simple_open, +	.owner = THIS_MODULE, +	.llseek = default_llseek, +}; + +static ssize_t read_file_spectral_count(struct file *file, +					char __user *user_buf, +					size_t count, loff_t *ppos) +{ +	struct ath_softc *sc = file->private_data; +	char buf[32]; +	unsigned int len; + +	len = sprintf(buf, "%d\n", sc->spec_config.count); +	return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static ssize_t write_file_spectral_count(struct file *file, +					 const char __user *user_buf, +					 size_t count, loff_t *ppos) +{ +	struct ath_softc *sc = file->private_data; +	unsigned long val; +	char buf[32]; +	ssize_t len; + +	len = min(count, sizeof(buf) - 1); +	if (copy_from_user(buf, user_buf, len)) +		return -EFAULT; + +	buf[len] = '\0'; +	if (kstrtoul(buf, 0, &val)) +		return -EINVAL; + +	if (val < 0 || val > 255) +		return -EINVAL; + +	sc->spec_config.count = val; +	return count; +} + +static const struct file_operations fops_spectral_count = { +	.read = read_file_spectral_count, +	.write = write_file_spectral_count, +	.open = simple_open, +	.owner = THIS_MODULE, +	.llseek = default_llseek, +}; + +static ssize_t read_file_spectral_period(struct file *file, +					 char __user *user_buf, +					 size_t count, loff_t *ppos) +{ +	struct ath_softc *sc = file->private_data; +	char buf[32]; +	unsigned int len; + +	len = sprintf(buf, "%d\n", sc->spec_config.period); +	return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static ssize_t write_file_spectral_period(struct file *file, +					  const char __user *user_buf, +					  size_t count, loff_t *ppos) +{ +	struct ath_softc *sc = file->private_data; +	unsigned long val; +	char buf[32]; +	ssize_t len; + +	len = min(count, sizeof(buf) - 1); +	if (copy_from_user(buf, user_buf, len)) +		return -EFAULT; + +	buf[len] = '\0'; +	if (kstrtoul(buf, 0, &val)) +		return -EINVAL; + +	if (val < 0 || val > 255) +		return -EINVAL; + +	sc->spec_config.period = val; +	return count; +} + +static const struct file_operations fops_spectral_period = { +	.read = read_file_spectral_period, +	.write = write_file_spectral_period, +	.open = simple_open, +	.owner = THIS_MODULE, +	.llseek = default_llseek, +}; + +static ssize_t read_file_spectral_fft_period(struct file *file, +					     char __user *user_buf, +					     size_t count, loff_t *ppos) +{ +	struct ath_softc *sc = file->private_data; +	char buf[32]; +	unsigned int len; + +	len = sprintf(buf, "%d\n", sc->spec_config.fft_period); +	return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static ssize_t write_file_spectral_fft_period(struct file *file, +					      const char __user *user_buf, +					      size_t count, loff_t *ppos) +{ +	struct ath_softc *sc = file->private_data; +	unsigned long val; +	char buf[32]; +	ssize_t len; + +	len = min(count, sizeof(buf) - 1); +	if (copy_from_user(buf, user_buf, len)) +		return -EFAULT; + +	buf[len] = '\0'; +	if (kstrtoul(buf, 0, &val)) +		return -EINVAL; + +	if (val < 0 || val > 15) +		return -EINVAL; + +	sc->spec_config.fft_period = val; +	return count; +} + +static const struct file_operations fops_spectral_fft_period = { +	.read = read_file_spectral_fft_period, +	.write = write_file_spectral_fft_period, +	.open = simple_open, +	.owner = THIS_MODULE, +	.llseek = default_llseek, +}; + +static struct dentry *create_buf_file_handler(const char *filename, +					      struct dentry *parent, +					      umode_t mode, +					      struct rchan_buf *buf, +					      int *is_global) +{ +	struct dentry *buf_file; + +	buf_file = debugfs_create_file(filename, mode, parent, buf, +				       &relay_file_operations); +	*is_global = 1; +	return buf_file; +} + +static int remove_buf_file_handler(struct dentry *dentry) +{ +	debugfs_remove(dentry); + +	return 0; +} + +void ath_debug_send_fft_sample(struct ath_softc *sc, +			       struct fft_sample_tlv *fft_sample_tlv) +{ +	int length; +	if (!sc->rfs_chan_spec_scan) +		return; + +	length = __be16_to_cpu(fft_sample_tlv->length) + +		 sizeof(*fft_sample_tlv); +	relay_write(sc->rfs_chan_spec_scan, fft_sample_tlv, length); +} + +static struct rchan_callbacks rfs_spec_scan_cb = { +	.create_buf_file = create_buf_file_handler, +	.remove_buf_file = remove_buf_file_handler, +}; + +  static ssize_t read_file_regidx(struct file *file, char __user *user_buf,                                  size_t count, loff_t *ppos)  { @@ -1780,6 +2065,24 @@ int ath9k_init_debug(struct ath_hw *ah)  			    &fops_base_eeprom);  	debugfs_create_file("modal_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,  			    &fops_modal_eeprom); +	sc->rfs_chan_spec_scan = relay_open("spectral_scan", +					    sc->debug.debugfs_phy, +					    262144, 4, &rfs_spec_scan_cb, +					    NULL); +	debugfs_create_file("spectral_scan_ctl", S_IRUSR | S_IWUSR, +			    sc->debug.debugfs_phy, sc, +			    &fops_spec_scan_ctl); +	debugfs_create_file("spectral_short_repeat", S_IRUSR | S_IWUSR, +			    sc->debug.debugfs_phy, sc, +			    &fops_spectral_short_repeat); +	debugfs_create_file("spectral_count", S_IRUSR | S_IWUSR, +			    sc->debug.debugfs_phy, sc, &fops_spectral_count); +	debugfs_create_file("spectral_period", S_IRUSR | S_IWUSR, +			    sc->debug.debugfs_phy, sc, &fops_spectral_period); +	debugfs_create_file("spectral_fft_period", S_IRUSR | S_IWUSR, +			    sc->debug.debugfs_phy, sc, +			    &fops_spectral_fft_period); +  #ifdef CONFIG_ATH9K_MAC_DEBUG  	debugfs_create_file("samples", S_IRUSR, sc->debug.debugfs_phy, sc,  			    &fops_samps);  |