Merge branch 'wl12xx-next'wl12xx-2011-08-12

5 files changed, 57 insertions, 18 deletions

diff --git a/drivers/net/wireless/wl12xx/boot.c b/drivers/net/wireless/wl12xx/boot.c
index 5ebc64d8940..a816f2ffa6a 100644
--- a/drivers/net/wireless/wl12xx/boot.c
+++ b/drivers/net/wireless/wl12xx/boot.c
@@ -549,13 +549,13 @@ static void wl1271_boot_hw_version(struct wl1271 *wl)
 {
 	u32 fuse;
 
-	fuse = wl1271_top_reg_read(wl, REG_FUSE_DATA_2_1);
+	if (wl->chip.id == CHIP_ID_1283_PG20)
+		fuse = wl1271_top_reg_read(wl, WL128X_REG_FUSE_DATA_2_1);
+	else
+		fuse = wl1271_top_reg_read(wl, WL127X_REG_FUSE_DATA_2_1);
 	fuse = (fuse & PG_VER_MASK) >> PG_VER_OFFSET;
 
 	wl->hw_pg_ver = (s8)fuse;
-
-	if (((wl->hw_pg_ver & PG_MAJOR_VER_MASK) >> PG_MAJOR_VER_OFFSET) < 3)
-		wl->quirks |= WL12XX_QUIRK_END_OF_TRANSACTION;
 }
 
 static int wl128x_switch_tcxo_to_fref(struct wl1271 *wl)
@@ -696,7 +696,8 @@ static int wl127x_boot_clk(struct wl1271 *wl)
 	u32 pause;
 	u32 clk;
 
-	wl1271_boot_hw_version(wl);
+	if (((wl->hw_pg_ver & PG_MAJOR_VER_MASK) >> PG_MAJOR_VER_OFFSET) < 3)
+		wl->quirks |= WL12XX_QUIRK_END_OF_TRANSACTION;
 
 	if (wl->ref_clock == CONF_REF_CLK_19_2_E ||
 	    wl->ref_clock == CONF_REF_CLK_38_4_E ||
@@ -750,6 +751,8 @@ int wl1271_load_firmware(struct wl1271 *wl)
 	u32 tmp, clk;
 	int selected_clock = -1;
 
+	wl1271_boot_hw_version(wl);
+
 	if (wl->chip.id == CHIP_ID_1283_PG20) {
 		ret = wl128x_boot_clk(wl, &selected_clock);
 		if (ret < 0)
diff --git a/drivers/net/wireless/wl12xx/boot.h b/drivers/net/wireless/wl12xx/boot.h
index e8f8255bbab..06dad9380fa 100644
--- a/drivers/net/wireless/wl12xx/boot.h
+++ b/drivers/net/wireless/wl12xx/boot.h
@@ -55,7 +55,8 @@ struct wl1271_static_data {
 #define OCP_REG_CLK_POLARITY 0x0cb2
 #define OCP_REG_CLK_PULL     0x0cb4
 
-#define REG_FUSE_DATA_2_1    0x050a
+#define WL127X_REG_FUSE_DATA_2_1    0x050a
+#define WL128X_REG_FUSE_DATA_2_1    0x2152
 #define PG_VER_MASK          0x3c
 #define PG_VER_OFFSET        2
 
diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c
index 3418299e17c..98258fe0e29 100644
--- a/drivers/net/wireless/wl12xx/main.c
+++ b/drivers/net/wireless/wl12xx/main.c
@@ -1395,6 +1395,7 @@ out:
 int wl1271_plt_start(struct wl1271 *wl)
 {
 	int retries = WL1271_BOOT_RETRIES;
+	struct wiphy *wiphy = wl->hw->wiphy;
 	int ret;
 
 	mutex_lock(&wl->mutex);
@@ -1428,6 +1429,11 @@ int wl1271_plt_start(struct wl1271 *wl)
 		wl1271_notice("firmware booted in PLT mode (%s)",
 			      wl->chip.fw_ver_str);
 
+		/* update hw/fw version info in wiphy struct */
+		wiphy->hw_version = wl->chip.id;
+		strncpy(wiphy->fw_version, wl->chip.fw_ver_str,
+			sizeof(wiphy->fw_version));
+
 		goto out;
 
 irq_disable:
@@ -4126,7 +4132,7 @@ static ssize_t wl1271_sysfs_show_hw_pg_ver(struct device *dev,
 	return len;
 }
 
-static DEVICE_ATTR(hw_pg_ver, S_IRUGO | S_IWUSR,
+static DEVICE_ATTR(hw_pg_ver, S_IRUGO,
 		   wl1271_sysfs_show_hw_pg_ver, NULL);
 
 static ssize_t wl1271_sysfs_read_fwlog(struct file *filp, struct kobject *kobj,
@@ -4522,6 +4528,10 @@ int wl1271_free_hw(struct wl1271 *wl)
 	mutex_unlock(&wl->mutex);
 
 	device_remove_bin_file(&wl->plat_dev->dev, &fwlog_attr);
+
+	device_remove_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver);
+
+	device_remove_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
 	platform_device_unregister(wl->plat_dev);
 	free_page((unsigned long)wl->fwlog);
 	dev_kfree_skb(wl->dummy_packet);
diff --git a/drivers/net/wireless/wl12xx/rx.c b/drivers/net/wireless/wl12xx/rx.c
index 0450fb49dbb..46f4af6ca72 100644
--- a/drivers/net/wireless/wl12xx/rx.c
+++ b/drivers/net/wireless/wl12xx/rx.c
@@ -38,12 +38,20 @@ static u8 wl1271_rx_get_mem_block(struct wl1271_fw_common_status *status,
 }
 
 static u32 wl1271_rx_get_buf_size(struct wl1271_fw_common_status *status,
-				 u32 drv_rx_counter)
+				  u32 drv_rx_counter)
 {
 	return (le32_to_cpu(status->rx_pkt_descs[drv_rx_counter]) &
 		RX_BUF_SIZE_MASK) >> RX_BUF_SIZE_SHIFT_DIV;
 }
 
+static bool wl1271_rx_get_unaligned(struct wl1271_fw_common_status *status,
+				    u32 drv_rx_counter)
+{
+	/* Convert the value to bool */
+	return !!(le32_to_cpu(status->rx_pkt_descs[drv_rx_counter]) &
+		RX_BUF_UNALIGNED_PAYLOAD);
+}
+
 static void wl1271_rx_status(struct wl1271 *wl,
 			     struct wl1271_rx_descriptor *desc,
 			     struct ieee80211_rx_status *status,
@@ -89,7 +97,8 @@ static void wl1271_rx_status(struct wl1271 *wl,
 	}
 }
 
-static int wl1271_rx_handle_data(struct wl1271 *wl, u8 *data, u32 length)
+static int wl1271_rx_handle_data(struct wl1271 *wl, u8 *data, u32 length,
+				 bool unaligned)
 {
 	struct wl1271_rx_descriptor *desc;
 	struct sk_buff *skb;
@@ -97,6 +106,7 @@ static int wl1271_rx_handle_data(struct wl1271 *wl, u8 *data, u32 length)
 	u8 *buf;
 	u8 beacon = 0;
 	u8 is_data = 0;
+	u8 reserved = unaligned ? NET_IP_ALIGN : 0;
 
 	/*
 	 * In PLT mode we seem to get frames and mac80211 warns about them,
@@ -131,17 +141,25 @@ static int wl1271_rx_handle_data(struct wl1271 *wl, u8 *data, u32 length)
 		return -EINVAL;
 	}
 
-	skb = __dev_alloc_skb(length, GFP_KERNEL);
+	/* skb length not included rx descriptor */
+	skb = __dev_alloc_skb(length + reserved - sizeof(*desc), GFP_KERNEL);
 	if (!skb) {
 		wl1271_error("Couldn't allocate RX frame");
 		return -ENOMEM;
 	}
 
-	buf = skb_put(skb, length);
-	memcpy(buf, data, length);
+	/* reserve the unaligned payload(if any) */
+	skb_reserve(skb, reserved);
+
+	buf = skb_put(skb, length - sizeof(*desc));
 
-	/* now we pull the descriptor out of the buffer */
-	skb_pull(skb, sizeof(*desc));
+	/*
+	 * Copy packets from aggregation buffer to the skbs without rx
+	 * descriptor and with packet payload aligned care. In case of unaligned
+	 * packets copy the packets in offset of 2 bytes guarantee IP header
+	 * payload aligned to 4 bytes.
+	 */
+	memcpy(buf, data + sizeof(*desc), length - sizeof(*desc));
 
 	hdr = (struct ieee80211_hdr *)skb->data;
 	if (ieee80211_is_beacon(hdr->frame_control))
@@ -175,6 +193,7 @@ void wl1271_rx(struct wl1271 *wl, struct wl1271_fw_common_status *status)
 	u32 pkt_offset;
 	bool is_ap = (wl->bss_type == BSS_TYPE_AP_BSS);
 	bool had_data = false;
+	bool unaligned = false;
 
 	while (drv_rx_counter != fw_rx_counter) {
 		buf_size = 0;
@@ -222,6 +241,10 @@ void wl1271_rx(struct wl1271 *wl, struct wl1271_fw_common_status *status)
 		while (pkt_offset < buf_size) {
 			pkt_length = wl1271_rx_get_buf_size(status,
 					drv_rx_counter);
+
+			unaligned = wl1271_rx_get_unaligned(status,
+					drv_rx_counter);
+
 			/*
 			 * the handle data call can only fail in memory-outage
 			 * conditions, in that case the received frame will just
@@ -229,7 +252,7 @@ void wl1271_rx(struct wl1271 *wl, struct wl1271_fw_common_status *status)
 			 */
 			if (wl1271_rx_handle_data(wl,
 						  wl->aggr_buf + pkt_offset,
-						  pkt_length) == 1)
+						  pkt_length, unaligned) == 1)
 				had_data = true;
 
 			wl->rx_counter++;
diff --git a/drivers/net/wireless/wl12xx/rx.h b/drivers/net/wireless/wl12xx/rx.h
index c88e3fa1d60..0325b9de612 100644
--- a/drivers/net/wireless/wl12xx/rx.h
+++ b/drivers/net/wireless/wl12xx/rx.h
@@ -93,9 +93,11 @@
 #define WL1271_RX_DESC_MIC_FAIL         0x02
 #define WL1271_RX_DESC_DRIVER_RX_Q_FAIL 0x03
 
-#define RX_MEM_BLOCK_MASK     0xFF
-#define RX_BUF_SIZE_MASK      0xFFF00
-#define RX_BUF_SIZE_SHIFT_DIV 6
+#define RX_MEM_BLOCK_MASK            0xFF
+#define RX_BUF_SIZE_MASK             0xFFF00
+#define RX_BUF_SIZE_SHIFT_DIV        6
+/* If set, the start of IP payload is not 4 bytes aligned */
+#define RX_BUF_UNALIGNED_PAYLOAD     BIT(20)
 
 enum {
 	WL12XX_RX_CLASS_UNKNOWN,