c9c68c7177
An external reset patch for AR955x accidentally led to external reset being issued twice on AR913x, once before the RTC reset and once after. This may be causing some stability issues. Signed-off-by: Felix Fietkau <nbd@nbd.name>
139 lines
3.9 KiB
Diff
139 lines
3.9 KiB
Diff
--- a/drivers/net/wireless/ath/ath9k/debug.c
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+++ b/drivers/net/wireless/ath/ath9k/debug.c
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@@ -1463,6 +1463,50 @@ static const struct file_operations fops
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#endif
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+static ssize_t read_file_diag(struct file *file, char __user *user_buf,
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+ size_t count, loff_t *ppos)
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+{
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+ struct ath_softc *sc = file->private_data;
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+ struct ath_hw *ah = sc->sc_ah;
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+ char buf[32];
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+ unsigned int len;
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+
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+ len = sprintf(buf, "0x%08lx\n", ah->diag);
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+ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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+}
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+
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+static ssize_t write_file_diag(struct file *file, const char __user *user_buf,
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+ size_t count, loff_t *ppos)
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+{
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+ struct ath_softc *sc = file->private_data;
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+ struct ath_hw *ah = sc->sc_ah;
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+ unsigned long diag;
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+ char buf[32];
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+ ssize_t len;
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+
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+ len = min(count, sizeof(buf) - 1);
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+ if (copy_from_user(buf, user_buf, len))
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+ return -EFAULT;
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+
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+ buf[len] = '\0';
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+ if (kstrtoul(buf, 0, &diag))
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+ return -EINVAL;
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+
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+ ah->diag = diag;
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+ ath9k_hw_update_diag(ah);
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+
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+ return count;
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+}
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+
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+static const struct file_operations fops_diag = {
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+ .read = read_file_diag,
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+ .write = write_file_diag,
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+ .open = simple_open,
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+ .owner = THIS_MODULE,
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+ .llseek = default_llseek,
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+};
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+
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+
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int ath9k_init_debug(struct ath_hw *ah)
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{
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struct ath_common *common = ath9k_hw_common(ah);
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@@ -1490,6 +1534,8 @@ int ath9k_init_debug(struct ath_hw *ah)
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debugfs_create_file("gpio_led", S_IWUSR,
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sc->debug.debugfs_phy, sc, &fops_gpio_led);
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#endif
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+ debugfs_create_file("diag", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
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+ sc, &fops_diag);
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debugfs_create_devm_seqfile(sc->dev, "dma", sc->debug.debugfs_phy,
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read_file_dma);
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debugfs_create_devm_seqfile(sc->dev, "interrupt", sc->debug.debugfs_phy,
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--- a/drivers/net/wireless/ath/ath9k/hw.h
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+++ b/drivers/net/wireless/ath/ath9k/hw.h
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@@ -520,6 +520,12 @@ enum {
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ATH9K_RESET_COLD,
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};
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+enum {
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+ ATH_DIAG_DISABLE_RX,
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+ ATH_DIAG_DISABLE_TX,
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+ ATH_DIAG_TRIGGER_ERROR,
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+};
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+
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struct ath9k_hw_version {
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u32 magic;
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u16 devid;
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@@ -805,6 +811,8 @@ struct ath_hw {
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u32 rfkill_polarity;
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u32 ah_flags;
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+ unsigned long diag;
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+
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bool reset_power_on;
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bool htc_reset_init;
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@@ -1067,6 +1075,7 @@ void ath9k_hw_check_nav(struct ath_hw *a
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bool ath9k_hw_check_alive(struct ath_hw *ah);
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bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode);
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+void ath9k_hw_update_diag(struct ath_hw *ah);
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/* Generic hw timer primitives */
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struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
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--- a/drivers/net/wireless/ath/ath9k/hw.c
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+++ b/drivers/net/wireless/ath/ath9k/hw.c
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@@ -1838,6 +1838,20 @@ u32 ath9k_hw_get_tsf_offset(struct times
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}
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EXPORT_SYMBOL(ath9k_hw_get_tsf_offset);
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+void ath9k_hw_update_diag(struct ath_hw *ah)
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+{
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+ if (test_bit(ATH_DIAG_DISABLE_RX, &ah->diag))
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+ REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS);
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+ else
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+ REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS);
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+
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+ if (test_bit(ATH_DIAG_DISABLE_TX, &ah->diag))
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+ REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_LOOP_BACK);
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+ else
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+ REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_LOOP_BACK);
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+}
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+EXPORT_SYMBOL(ath9k_hw_update_diag);
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+
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int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
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struct ath9k_hw_cal_data *caldata, bool fastcc)
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{
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@@ -2046,6 +2060,7 @@ int ath9k_hw_reset(struct ath_hw *ah, st
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ar9003_hw_disable_phy_restart(ah);
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ath9k_hw_apply_gpio_override(ah);
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+ ath9k_hw_update_diag(ah);
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if (AR_SREV_9565(ah) && common->bt_ant_diversity)
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REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV, AR_BTCOEX_WL_LNADIV_FORCE_ON);
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--- a/drivers/net/wireless/ath/ath9k/main.c
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+++ b/drivers/net/wireless/ath/ath9k/main.c
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@@ -533,6 +533,11 @@ irqreturn_t ath_isr(int irq, void *dev)
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if (test_bit(ATH_OP_HW_RESET, &common->op_flags))
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return IRQ_HANDLED;
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+ if (test_bit(ATH_DIAG_TRIGGER_ERROR, &ah->diag)) {
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+ status |= ATH9K_INT_FATAL;
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+ clear_bit(ATH_DIAG_TRIGGER_ERROR, &ah->diag);
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+ }
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+
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/*
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* If there are no status bits set, then this interrupt was not
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* for me (should have been caught above).
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