128 lines
3.5 KiB
Diff
128 lines
3.5 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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@@ -638,6 +638,86 @@ static const struct file_operations fops
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.owner = THIS_MODULE
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};
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+static ssize_t read_file_regidx(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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+ char buf[32];
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+ unsigned int len;
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+
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+ len = snprintf(buf, sizeof(buf), "0x%08x\n", sc->debug.regidx);
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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_regidx(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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+ unsigned long regidx;
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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 -EINVAL;
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+
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+ buf[len] = '\0';
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+ if (strict_strtoul(buf, 0, ®idx))
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+ return -EINVAL;
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+
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+ sc->debug.regidx = regidx;
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+ return count;
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+}
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+
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+static const struct file_operations fops_regidx = {
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+ .read = read_file_regidx,
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+ .write = write_file_regidx,
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+ .open = ath9k_debugfs_open,
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+ .owner = THIS_MODULE
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+};
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+
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+static ssize_t read_file_regval(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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+ u32 regval;
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+
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+ regval = REG_READ_D(ah, sc->debug.regidx);
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+ len = snprintf(buf, sizeof(buf), "0x%08x\n", regval);
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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_regval(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 regval;
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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 -EINVAL;
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+
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+ buf[len] = '\0';
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+ if (strict_strtoul(buf, 0, ®val))
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+ return -EINVAL;
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+
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+ REG_WRITE_D(ah, sc->debug.regidx, regval);
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+ return count;
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+}
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+
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+static const struct file_operations fops_regval = {
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+ .read = read_file_regval,
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+ .write = write_file_regval,
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+ .open = ath9k_debugfs_open,
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+ .owner = THIS_MODULE
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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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@@ -700,6 +780,17 @@ int ath9k_init_debug(struct ath_hw *ah)
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if (!sc->debug.debugfs_xmit)
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goto err;
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+ sc->debug.regidx = 0;
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+ sc->debug.debugfs_regidx = debugfs_create_file("regidx",
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+ S_IRUSR|S_IWUSR, sc->debug.debugfs_phy, sc, &fops_regidx);
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+ if (!sc->debug.debugfs_regidx)
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+ goto err;
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+
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+ sc->debug.debugfs_regval = debugfs_create_file("regval",
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+ S_IRUSR|S_IWUSR, sc->debug.debugfs_phy, sc, &fops_regval);
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+ if (!sc->debug.debugfs_regval)
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+ goto err;
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+
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return 0;
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err:
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ath9k_exit_debug(ah);
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@@ -713,6 +804,8 @@ void ath9k_exit_debug(struct ath_hw *ah)
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debugfs_remove(sc->debug.debugfs_tx_chainmask);
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debugfs_remove(sc->debug.debugfs_rx_chainmask);
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+ debugfs_remove(sc->debug.debugfs_regval);
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+ debugfs_remove(sc->debug.debugfs_regidx);
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debugfs_remove(sc->debug.debugfs_xmit);
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debugfs_remove(sc->debug.debugfs_wiphy);
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debugfs_remove(sc->debug.debugfs_rcstat);
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--- a/drivers/net/wireless/ath/ath9k/debug.h
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+++ b/drivers/net/wireless/ath/ath9k/debug.h
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@@ -132,6 +132,9 @@ struct ath9k_debug {
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struct dentry *debugfs_rcstat;
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struct dentry *debugfs_wiphy;
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struct dentry *debugfs_xmit;
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+ struct dentry *debugfs_regidx;
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+ struct dentry *debugfs_regval;
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+ u32 regidx;
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struct ath_stats stats;
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};
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