140 lines
3.8 KiB
Diff
140 lines
3.8 KiB
Diff
--- a/drivers/net/wireless/ath/ath9k/debug.c
|
|
+++ b/drivers/net/wireless/ath/ath9k/debug.c
|
|
@@ -1437,6 +1437,50 @@ 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);
|
|
@@ -1464,6 +1508,8 @@ 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
|
|
@@ -482,6 +482,12 @@ 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;
|
|
@@ -762,6 +768,8 @@ struct ath_hw {
|
|
u32 rfkill_polarity;
|
|
u32 ah_flags;
|
|
|
|
+ unsigned long diag;
|
|
+
|
|
bool reset_power_on;
|
|
bool htc_reset_init;
|
|
|
|
@@ -1013,6 +1021,7 @@ void ath9k_hw_check_nav(struct ath_hw *a
|
|
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);
|
|
|
|
/* Generic hw timer primitives */
|
|
struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
|
|
--- a/drivers/net/wireless/ath/ath9k/hw.c
|
|
+++ b/drivers/net/wireless/ath/ath9k/hw.c
|
|
@@ -1725,6 +1725,20 @@ 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)
|
|
{
|
|
@@ -1930,6 +1944,7 @@ int ath9k_hw_reset(struct ath_hw *ah, st
|
|
ar9003_hw_disable_phy_restart(ah);
|
|
|
|
ath9k_hw_apply_gpio_override(ah);
|
|
+ ath9k_hw_update_diag(ah);
|
|
|
|
if (AR_SREV_9565(ah) && common->bt_ant_diversity)
|
|
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
|
|
@@ -606,6 +606,11 @@ irqreturn_t ath_isr(int irq, void *dev)
|
|
ath9k_debug_sync_cause(sc, sync_cause);
|
|
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).
|