mwl8k: add support for the 88w8366

Add support for the 88w8366 firmware receive descriptor format,
and add the 88w8366 PCI ID.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 94 insertions, 1 deletions

diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index de38ec481f60..9fde17bb9911 100644
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -756,7 +756,89 @@ static inline void mwl8k_add_dma_header(struct sk_buff *skb)
 
 
 /*
- * Packet reception.
+ * Packet reception for 88w8366.
+ */
+struct mwl8k_rxd_8366 {
+        __le16 pkt_len;
+        __u8 sq2;
+        __u8 rate;
+        __le32 pkt_phys_addr;
+        __le32 next_rxd_phys_addr;
+        __le16 qos_control;
+        __le16 htsig2;
+        __le32 hw_rssi_info;
+        __le32 hw_noise_floor_info;
+        __u8 noise_floor;
+        __u8 pad0[3];
+        __u8 rssi;
+        __u8 rx_status;
+        __u8 channel;
+        __u8 rx_ctrl;
+} __attribute__((packed));
+
+#define MWL8K_8366_RX_CTRL_OWNED_BY_HOST        0x80
+
+static void mwl8k_rxd_8366_init(void *_rxd, dma_addr_t next_dma_addr)
+{
+        struct mwl8k_rxd_8366 *rxd = _rxd;
+
+        rxd->next_rxd_phys_addr = cpu_to_le32(next_dma_addr);
+        rxd->rx_ctrl = MWL8K_8366_RX_CTRL_OWNED_BY_HOST;
+}
+
+static void mwl8k_rxd_8366_refill(void *_rxd, dma_addr_t addr, int len)
+{
+        struct mwl8k_rxd_8366 *rxd = _rxd;
+
+        rxd->pkt_len = cpu_to_le16(len);
+        rxd->pkt_phys_addr = cpu_to_le32(addr);
+        wmb();
+        rxd->rx_ctrl = 0;
+}
+
+static int
+mwl8k_rxd_8366_process(void *_rxd, struct ieee80211_rx_status *status)
+{
+        struct mwl8k_rxd_8366 *rxd = _rxd;
+
+        if (!(rxd->rx_ctrl & MWL8K_8366_RX_CTRL_OWNED_BY_HOST))
+                return -1;
+        rmb();
+
+        memset(status, 0, sizeof(*status));
+
+        status->signal = -rxd->rssi;
+        status->noise = -rxd->noise_floor;
+
+        if (rxd->rate & 0x80) {
+                status->flag |= RX_FLAG_HT;
+                status->rate_idx = rxd->rate & 0x7f;
+        } else {
+                int i;
+
+                for (i = 0; i < ARRAY_SIZE(mwl8k_rates); i++) {
+                        if (mwl8k_rates[i].hw_value == rxd->rate) {
+                                status->rate_idx = i;
+                                break;
+                        }
+                }
+        }
+
+        status->band = IEEE80211_BAND_2GHZ;
+        status->freq = ieee80211_channel_to_frequency(rxd->channel);
+
+        return le16_to_cpu(rxd->pkt_len);
+}
+
+static struct rxd_ops rxd_8366_ops = {
+        .rxd_size       = sizeof(struct mwl8k_rxd_8366),
+        .rxd_init       = mwl8k_rxd_8366_init,
+        .rxd_refill     = mwl8k_rxd_8366_refill,
+        .rxd_process    = mwl8k_rxd_8366_process,
+};
+
+/*
+ * Packet reception for 88w8687.
  */
 struct mwl8k_rxd_8687 {
         __le16 pkt_len;
@@ -3226,6 +3308,14 @@ static void mwl8k_finalize_join_worker(struct work_struct *work)
         priv->beacon_skb = NULL;
 }
 
+static struct mwl8k_device_info di_8366 = {
+        .part_name      = "88w8366",
+        .helper_image   = "mwl8k/helper_8366.fw",
+        .fw_image       = "mwl8k/fmimage_8366.fw",
+        .rxd_ops        = &rxd_8366_ops,
+        .modes          = 0,
+};
+
 static struct mwl8k_device_info di_8687 = {
         .part_name      = "88w8687",
         .helper_image   = "mwl8k/helper_8687.fw",
@@ -3242,6 +3332,9 @@ static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table) = {
                 PCI_VDEVICE(MARVELL, 0x2a30),
                 .driver_data = (unsigned long)&di_8687,
         }, {
+                PCI_VDEVICE(MARVELL, 0x2a40),
+                .driver_data = (unsigned long)&di_8366,
+        }, {
         },
 };
 MODULE_DEVICE_TABLE(pci, mwl8k_pci_id_table);