3 files changed, 78 insertions, 23 deletions

diff --git a/drivers/net/wireless/ath/ath9k/ahb.c b/drivers/net/wireless/ath/ath9k/ahb.c
index 993672105963..9cb0efa9b4c0 100644
--- a/drivers/net/wireless/ath/ath9k/ahb.c
+++ b/drivers/net/wireless/ath/ath9k/ahb.c
@@ -75,7 +75,7 @@ static int ath_ahb_probe(struct platform_device *pdev)
 		goto err_out;
 	}
 
-	mem = ioremap_nocache(res->start, res->end - res->start + 1);
+	mem = ioremap_nocache(res->start, resource_size(res));
 	if (mem == NULL) {
 		dev_err(&pdev->dev, "ioremap failed\n");
 		ret = -ENOMEM;
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 8d60f4f09acc..eb250d6b8038 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -1020,28 +1020,29 @@ static bool ar9003_hw_ani_control(struct ath_hw *ah,
 static void ar9003_hw_do_getnf(struct ath_hw *ah,
 			      int16_t nfarray[NUM_NF_READINGS])
 {
-	int16_t nf;
-
-	nf = MS(REG_READ(ah, AR_PHY_CCA_0), AR_PHY_MINCCA_PWR);
-	nfarray[0] = sign_extend32(nf, 8);
-
-	nf = MS(REG_READ(ah, AR_PHY_CCA_1), AR_PHY_CH1_MINCCA_PWR);
-	nfarray[1] = sign_extend32(nf, 8);
+#define AR_PHY_CH_MINCCA_PWR	0x1FF00000
+#define AR_PHY_CH_MINCCA_PWR_S	20
+#define AR_PHY_CH_EXT_MINCCA_PWR 0x01FF0000
+#define AR_PHY_CH_EXT_MINCCA_PWR_S 16
 
-	nf = MS(REG_READ(ah, AR_PHY_CCA_2), AR_PHY_CH2_MINCCA_PWR);
-	nfarray[2] = sign_extend32(nf, 8);
-
-	if (!IS_CHAN_HT40(ah->curchan))
-		return;
+	int16_t nf;
+	int i;
 
-	nf = MS(REG_READ(ah, AR_PHY_EXT_CCA), AR_PHY_EXT_MINCCA_PWR);
-	nfarray[3] = sign_extend32(nf, 8);
+	for (i = 0; i < AR9300_MAX_CHAINS; i++) {
+		if (ah->rxchainmask & BIT(i)) {
+			nf = MS(REG_READ(ah, ah->nf_regs[i]),
+					 AR_PHY_CH_MINCCA_PWR);
+			nfarray[i] = sign_extend32(nf, 8);
 
-	nf = MS(REG_READ(ah, AR_PHY_EXT_CCA_1), AR_PHY_CH1_EXT_MINCCA_PWR);
-	nfarray[4] = sign_extend32(nf, 8);
+			if (IS_CHAN_HT40(ah->curchan)) {
+				u8 ext_idx = AR9300_MAX_CHAINS + i;
 
-	nf = MS(REG_READ(ah, AR_PHY_EXT_CCA_2), AR_PHY_CH2_EXT_MINCCA_PWR);
-	nfarray[5] = sign_extend32(nf, 8);
+				nf = MS(REG_READ(ah, ah->nf_regs[ext_idx]),
+						 AR_PHY_CH_EXT_MINCCA_PWR);
+				nfarray[ext_idx] = sign_extend32(nf, 8);
+			}
+		}
+	}
 }
 
 static void ar9003_hw_set_nf_limits(struct ath_hw *ah)
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index 5cfcf8c235a4..8df5a92a20f1 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -15,6 +15,7 @@
  */
 
 #include <linux/slab.h>
+#include <linux/vmalloc.h>
 #include <asm/unaligned.h>
 
 #include "ath9k.h"
@@ -30,6 +31,19 @@ static int ath9k_debugfs_open(struct inode *inode, struct file *file)
 	return 0;
 }
 
+static ssize_t ath9k_debugfs_read_buf(struct file *file, char __user *user_buf,
+				      size_t count, loff_t *ppos)
+{
+	u8 *buf = file->private_data;
+	return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
+}
+
+static int ath9k_debugfs_release_buf(struct inode *inode, struct file *file)
+{
+	vfree(file->private_data);
+	return 0;
+}
+
 #ifdef CONFIG_ATH_DEBUG
 
 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
@@ -548,10 +562,10 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
 	PR("hw-tx-proc-desc: ", txprocdesc);
 	len += snprintf(buf + len, size - len,
 			"%s%11p%11p%10p%10p\n", "txq-memory-address:",
-			&(sc->tx.txq_map[WME_AC_BE]),
-			&(sc->tx.txq_map[WME_AC_BK]),
-			&(sc->tx.txq_map[WME_AC_VI]),
-			&(sc->tx.txq_map[WME_AC_VO]));
+			sc->tx.txq_map[WME_AC_BE],
+			sc->tx.txq_map[WME_AC_BK],
+			sc->tx.txq_map[WME_AC_VI],
+			sc->tx.txq_map[WME_AC_VO]);
 	if (len >= size)
 		goto done;
 
@@ -1027,6 +1041,42 @@ static const struct file_operations fops_regval = {
 	.llseek = default_llseek,
 };
 
+#define REGDUMP_LINE_SIZE	20
+
+static int open_file_regdump(struct inode *inode, struct file *file)
+{
+	struct ath_softc *sc = inode->i_private;
+	unsigned int len = 0;
+	u8 *buf;
+	int i;
+	unsigned long num_regs, regdump_len, max_reg_offset;
+
+	max_reg_offset = AR_SREV_9300_20_OR_LATER(sc->sc_ah) ? 0x16bd4 : 0xb500;
+	num_regs = max_reg_offset / 4 + 1;
+	regdump_len = num_regs * REGDUMP_LINE_SIZE + 1;
+	buf = vmalloc(regdump_len);
+	if (!buf)
+		return -ENOMEM;
+
+	ath9k_ps_wakeup(sc);
+	for (i = 0; i < num_regs; i++)
+		len += scnprintf(buf + len, regdump_len - len,
+			"0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2));
+	ath9k_ps_restore(sc);
+
+	file->private_data = buf;
+
+	return 0;
+}
+
+static const struct file_operations fops_regdump = {
+	.open = open_file_regdump,
+	.read = ath9k_debugfs_read_buf,
+	.release = ath9k_debugfs_release_buf,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,/* read accesses f_pos */
+};
+
 int ath9k_init_debug(struct ath_hw *ah)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
@@ -1091,6 +1141,10 @@ int ath9k_init_debug(struct ath_hw *ah)
 			sc->debug.debugfs_phy, &ah->config.cwm_ignore_extcca))
 		goto err;
 
+	if (!debugfs_create_file("regdump", S_IRUSR, sc->debug.debugfs_phy,
+			sc, &fops_regdump))
+		goto err;
+
 	sc->debug.regidx = 0;
 	return 0;
 err: