| --- a/drivers/net/wireless/ath/ath9k/debug.c |
| +++ b/drivers/net/wireless/ath/ath9k/debug.c |
| @@ -1364,6 +1364,53 @@ void ath9k_deinit_debug(struct ath_softc |
| ath9k_cmn_spectral_deinit_debug(&sc->spec_priv); |
| } |
| |
| +static ssize_t read_file_eeprom(struct file *file, char __user *user_buf, |
| + size_t count, loff_t *ppos) |
| +{ |
| + struct ath_softc *sc = file->private_data; |
| + struct ath_hw *ah = sc->sc_ah; |
| + struct ath_common *common = ath9k_hw_common(ah); |
| + int bytes = 0; |
| + int pos = *ppos; |
| + int size = 4096; |
| + u16 val; |
| + int i; |
| + |
| + if (AR_SREV_9300_20_OR_LATER(ah)) |
| + size = 16384; |
| + |
| + if (*ppos < 0) |
| + return -EINVAL; |
| + |
| + if (count > size - *ppos) |
| + count = size - *ppos; |
| + |
| + for (i = *ppos / 2; count > 0; count -= bytes, *ppos += bytes, i++) { |
| + void *from = &val; |
| + |
| + if (!common->bus_ops->eeprom_read(common, i, &val)) |
| + val = 0xffff; |
| + |
| + if (*ppos % 2) { |
| + from++; |
| + bytes = 1; |
| + } else if (count == 1) { |
| + bytes = 1; |
| + } else { |
| + bytes = 2; |
| + } |
| + copy_to_user(user_buf, from, bytes); |
| + user_buf += bytes; |
| + } |
| + return *ppos - pos; |
| +} |
| + |
| +static const struct file_operations fops_eeprom = { |
| + .read = read_file_eeprom, |
| + .open = simple_open, |
| + .owner = THIS_MODULE |
| +}; |
| + |
| int ath9k_init_debug(struct ath_hw *ah) |
| { |
| struct ath_common *common = ath9k_hw_common(ah); |
| @@ -1383,6 +1430,8 @@ int ath9k_init_debug(struct ath_hw *ah) |
| ath9k_tx99_init_debug(sc); |
| ath9k_cmn_spectral_init_debug(&sc->spec_priv, sc->debug.debugfs_phy); |
| |
| + debugfs_create_file("eeprom", S_IRUSR, sc->debug.debugfs_phy, sc, |
| + &fops_eeprom); |
| debugfs_create_devm_seqfile(sc->dev, "dma", sc->debug.debugfs_phy, |
| read_file_dma); |
| debugfs_create_devm_seqfile(sc->dev, "interrupt", sc->debug.debugfs_phy, |