diff options
Diffstat (limited to 'package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch b/package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch new file mode 100644 index 0000000..b069cb2 --- /dev/null +++ b/package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch @@ -0,0 +1,139 @@ +--- a/drivers/net/wireless/ath/ath9k/debug.c ++++ b/drivers/net/wireless/ath/ath9k/debug.c +@@ -1892,6 +1892,50 @@ static const struct file_operations fops + #endif + + ++static ssize_t read_file_diag(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; ++ char buf[32]; ++ unsigned int len; ++ ++ len = sprintf(buf, "0x%08lx\n", ah->diag); ++ return simple_read_from_buffer(user_buf, count, ppos, buf, len); ++} ++ ++static ssize_t write_file_diag(struct file *file, const char __user *user_buf, ++ size_t count, loff_t *ppos) ++{ ++ struct ath_softc *sc = file->private_data; ++ struct ath_hw *ah = sc->sc_ah; ++ unsigned long diag; ++ 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, &diag)) ++ return -EINVAL; ++ ++ ah->diag = diag; ++ ath9k_hw_update_diag(ah); ++ ++ return count; ++} ++ ++static const struct file_operations fops_diag = { ++ .read = read_file_diag, ++ .write = write_file_diag, ++ .open = simple_open, ++ .owner = THIS_MODULE, ++ .llseek = default_llseek, ++}; ++ ++ + int ath9k_init_debug(struct ath_hw *ah) + { + struct ath_common *common = ath9k_hw_common(ah); +@@ -1917,6 +1961,8 @@ int ath9k_init_debug(struct ath_hw *ah) + debugfs_create_file("gpio_led", S_IWUSR, + sc->debug.debugfs_phy, sc, &fops_gpio_led); + #endif ++ debugfs_create_file("diag", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, ++ sc, &fops_diag); + debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc, + &fops_dma); + debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy, sc, +--- a/drivers/net/wireless/ath/ath9k/hw.h ++++ b/drivers/net/wireless/ath/ath9k/hw.h +@@ -500,6 +500,12 @@ enum { + ATH9K_RESET_COLD, + }; + ++enum { ++ ATH_DIAG_DISABLE_RX, ++ ATH_DIAG_DISABLE_TX, ++ ATH_DIAG_TRIGGER_ERROR, ++}; ++ + struct ath9k_hw_version { + u32 magic; + u16 devid; +@@ -778,6 +784,8 @@ struct ath_hw { + u32 rfkill_polarity; + u32 ah_flags; + ++ unsigned long diag; ++ + bool reset_power_on; + bool htc_reset_init; + +@@ -1028,6 +1036,7 @@ void ath9k_hw_set_sta_beacon_timers(stru + bool ath9k_hw_check_alive(struct ath_hw *ah); + + bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode); ++void ath9k_hw_update_diag(struct ath_hw *ah); + + #ifdef CPTCFG_ATH9K_DEBUGFS + void ath9k_debug_sync_cause(struct ath_common *common, u32 sync_cause); +--- a/drivers/net/wireless/ath/ath9k/hw.c ++++ b/drivers/net/wireless/ath/ath9k/hw.c +@@ -1854,6 +1854,20 @@ fail: + return -EINVAL; + } + ++void ath9k_hw_update_diag(struct ath_hw *ah) ++{ ++ if (test_bit(ATH_DIAG_DISABLE_RX, &ah->diag)) ++ REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS); ++ else ++ REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS); ++ ++ if (test_bit(ATH_DIAG_DISABLE_TX, &ah->diag)) ++ REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_LOOP_BACK); ++ else ++ REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_LOOP_BACK); ++} ++EXPORT_SYMBOL(ath9k_hw_update_diag); ++ + int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, + struct ath9k_hw_cal_data *caldata, bool fastcc) + { +@@ -2056,6 +2070,7 @@ int ath9k_hw_reset(struct ath_hw *ah, st + } + + ath9k_hw_apply_gpio_override(ah); ++ ath9k_hw_update_diag(ah); + + if (AR_SREV_9565(ah) && ah->shared_chain_lnadiv) + REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV, AR_BTCOEX_WL_LNADIV_FORCE_ON); +--- a/drivers/net/wireless/ath/ath9k/main.c ++++ b/drivers/net/wireless/ath/ath9k/main.c +@@ -462,6 +462,11 @@ irqreturn_t ath_isr(int irq, void *dev) + ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */ + status &= ah->imask; /* discard unasked-for bits */ + ++ if (test_bit(ATH_DIAG_TRIGGER_ERROR, &ah->diag)) { ++ status |= ATH9K_INT_FATAL; ++ clear_bit(ATH_DIAG_TRIGGER_ERROR, &ah->diag); ++ } ++ + /* + * If there are no status bits set, then this interrupt was not + * for me (should have been caught above). |