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mwl8k: Adding support for 8764 4x4 AP
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The patch does the following:-

a Add entry in the PCIe table
b Add firmware support with API versioning
c Reuse most of the 8366 code
d Make 8764 specific changes where 8764 differs
  from 8366 e.g. structure definitions.

Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Nishant Sarmukadam authored and John W. Linville committed Mar 6, 2013
1 parent f6baf15 commit d926dc7
Showing 1 changed file with 45 additions and 33 deletions.
78 changes: 45 additions & 33 deletions drivers/net/wireless/mwl8k.c
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Original file line number Diff line number Diff line change
Expand Up @@ -908,9 +908,9 @@ static void mwl8k_encapsulate_tx_frame(struct mwl8k_priv *priv,
}

/*
* Packet reception for 88w8366 AP firmware.
* Packet reception for 88w8366/88w8764 AP firmware.
*/
struct mwl8k_rxd_8366_ap {
struct mwl8k_rxd_ap {
__le16 pkt_len;
__u8 sq2;
__u8 rate;
Expand All @@ -928,30 +928,30 @@ struct mwl8k_rxd_8366_ap {
__u8 rx_ctrl;
} __packed;

#define MWL8K_8366_AP_RATE_INFO_MCS_FORMAT 0x80
#define MWL8K_8366_AP_RATE_INFO_40MHZ 0x40
#define MWL8K_8366_AP_RATE_INFO_RATEID(x) ((x) & 0x3f)
#define MWL8K_AP_RATE_INFO_MCS_FORMAT 0x80
#define MWL8K_AP_RATE_INFO_40MHZ 0x40
#define MWL8K_AP_RATE_INFO_RATEID(x) ((x) & 0x3f)

#define MWL8K_8366_AP_RX_CTRL_OWNED_BY_HOST 0x80
#define MWL8K_AP_RX_CTRL_OWNED_BY_HOST 0x80

/* 8366 AP rx_status bits */
#define MWL8K_8366_AP_RXSTAT_DECRYPT_ERR_MASK 0x80
#define MWL8K_8366_AP_RXSTAT_GENERAL_DECRYPT_ERR 0xFF
#define MWL8K_8366_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR 0x02
#define MWL8K_8366_AP_RXSTAT_WEP_DECRYPT_ICV_ERR 0x04
#define MWL8K_8366_AP_RXSTAT_TKIP_DECRYPT_ICV_ERR 0x08
/* 8366/8764 AP rx_status bits */
#define MWL8K_AP_RXSTAT_DECRYPT_ERR_MASK 0x80
#define MWL8K_AP_RXSTAT_GENERAL_DECRYPT_ERR 0xFF
#define MWL8K_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR 0x02
#define MWL8K_AP_RXSTAT_WEP_DECRYPT_ICV_ERR 0x04
#define MWL8K_AP_RXSTAT_TKIP_DECRYPT_ICV_ERR 0x08

static void mwl8k_rxd_8366_ap_init(void *_rxd, dma_addr_t next_dma_addr)
static void mwl8k_rxd_ap_init(void *_rxd, dma_addr_t next_dma_addr)
{
struct mwl8k_rxd_8366_ap *rxd = _rxd;
struct mwl8k_rxd_ap *rxd = _rxd;

rxd->next_rxd_phys_addr = cpu_to_le32(next_dma_addr);
rxd->rx_ctrl = MWL8K_8366_AP_RX_CTRL_OWNED_BY_HOST;
rxd->rx_ctrl = MWL8K_AP_RX_CTRL_OWNED_BY_HOST;
}

static void mwl8k_rxd_8366_ap_refill(void *_rxd, dma_addr_t addr, int len)
static void mwl8k_rxd_ap_refill(void *_rxd, dma_addr_t addr, int len)
{
struct mwl8k_rxd_8366_ap *rxd = _rxd;
struct mwl8k_rxd_ap *rxd = _rxd;

rxd->pkt_len = cpu_to_le16(len);
rxd->pkt_phys_addr = cpu_to_le32(addr);
Expand All @@ -960,12 +960,12 @@ static void mwl8k_rxd_8366_ap_refill(void *_rxd, dma_addr_t addr, int len)
}

static int
mwl8k_rxd_8366_ap_process(void *_rxd, struct ieee80211_rx_status *status,
__le16 *qos, s8 *noise)
mwl8k_rxd_ap_process(void *_rxd, struct ieee80211_rx_status *status,
__le16 *qos, s8 *noise)
{
struct mwl8k_rxd_8366_ap *rxd = _rxd;
struct mwl8k_rxd_ap *rxd = _rxd;

if (!(rxd->rx_ctrl & MWL8K_8366_AP_RX_CTRL_OWNED_BY_HOST))
if (!(rxd->rx_ctrl & MWL8K_AP_RX_CTRL_OWNED_BY_HOST))
return -1;
rmb();

Expand All @@ -974,11 +974,11 @@ mwl8k_rxd_8366_ap_process(void *_rxd, struct ieee80211_rx_status *status,
status->signal = -rxd->rssi;
*noise = -rxd->noise_floor;

if (rxd->rate & MWL8K_8366_AP_RATE_INFO_MCS_FORMAT) {
if (rxd->rate & MWL8K_AP_RATE_INFO_MCS_FORMAT) {
status->flag |= RX_FLAG_HT;
if (rxd->rate & MWL8K_8366_AP_RATE_INFO_40MHZ)
if (rxd->rate & MWL8K_AP_RATE_INFO_40MHZ)
status->flag |= RX_FLAG_40MHZ;
status->rate_idx = MWL8K_8366_AP_RATE_INFO_RATEID(rxd->rate);
status->rate_idx = MWL8K_AP_RATE_INFO_RATEID(rxd->rate);
} else {
int i;

Expand All @@ -1002,19 +1002,19 @@ mwl8k_rxd_8366_ap_process(void *_rxd, struct ieee80211_rx_status *status,

*qos = rxd->qos_control;

if ((rxd->rx_status != MWL8K_8366_AP_RXSTAT_GENERAL_DECRYPT_ERR) &&
(rxd->rx_status & MWL8K_8366_AP_RXSTAT_DECRYPT_ERR_MASK) &&
(rxd->rx_status & MWL8K_8366_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR))
if ((rxd->rx_status != MWL8K_AP_RXSTAT_GENERAL_DECRYPT_ERR) &&
(rxd->rx_status & MWL8K_AP_RXSTAT_DECRYPT_ERR_MASK) &&
(rxd->rx_status & MWL8K_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR))
status->flag |= RX_FLAG_MMIC_ERROR;

return le16_to_cpu(rxd->pkt_len);
}

static struct rxd_ops rxd_8366_ap_ops = {
.rxd_size = sizeof(struct mwl8k_rxd_8366_ap),
.rxd_init = mwl8k_rxd_8366_ap_init,
.rxd_refill = mwl8k_rxd_8366_ap_refill,
.rxd_process = mwl8k_rxd_8366_ap_process,
static struct rxd_ops rxd_ap_ops = {
.rxd_size = sizeof(struct mwl8k_rxd_ap),
.rxd_init = mwl8k_rxd_ap_init,
.rxd_refill = mwl8k_rxd_ap_refill,
.rxd_process = mwl8k_rxd_ap_process,
};

/*
Expand Down Expand Up @@ -5429,12 +5429,17 @@ enum {
MWL8363 = 0,
MWL8687,
MWL8366,
MWL8764,
};

#define MWL8K_8366_AP_FW_API 3
#define _MWL8K_8366_AP_FW(api) "mwl8k/fmimage_8366_ap-" #api ".fw"
#define MWL8K_8366_AP_FW(api) _MWL8K_8366_AP_FW(api)

#define MWL8K_8764_AP_FW_API 1
#define _MWL8K_8764_AP_FW(api) "mwl8k/fmimage_8764_ap-" #api ".fw"
#define MWL8K_8764_AP_FW(api) _MWL8K_8764_AP_FW(api)

static struct mwl8k_device_info mwl8k_info_tbl[] = {
[MWL8363] = {
.part_name = "88w8363",
Expand All @@ -5452,7 +5457,13 @@ static struct mwl8k_device_info mwl8k_info_tbl[] = {
.fw_image_sta = "mwl8k/fmimage_8366.fw",
.fw_image_ap = MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API),
.fw_api_ap = MWL8K_8366_AP_FW_API,
.ap_rxd_ops = &rxd_8366_ap_ops,
.ap_rxd_ops = &rxd_ap_ops,
},
[MWL8764] = {
.part_name = "88w8764",
.fw_image_ap = MWL8K_8764_AP_FW(MWL8K_8764_AP_FW_API),
.fw_api_ap = MWL8K_8764_AP_FW_API,
.ap_rxd_ops = &rxd_ap_ops,
},
};

Expand All @@ -5474,6 +5485,7 @@ static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table) = {
{ PCI_VDEVICE(MARVELL, 0x2a41), .driver_data = MWL8366, },
{ PCI_VDEVICE(MARVELL, 0x2a42), .driver_data = MWL8366, },
{ PCI_VDEVICE(MARVELL, 0x2a43), .driver_data = MWL8366, },
{ PCI_VDEVICE(MARVELL, 0x2b36), .driver_data = MWL8764, },
{ },
};
MODULE_DEVICE_TABLE(pci, mwl8k_pci_id_table);
Expand Down

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