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path: root/drivers/net/wireless/mwifiex/pcie.c
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Diffstat (limited to 'drivers/net/wireless/mwifiex/pcie.c')
-rw-r--r--drivers/net/wireless/mwifiex/pcie.c1263
1 files changed, 863 insertions, 400 deletions
diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c
index b879e1338a54..35c79722c361 100644
--- a/drivers/net/wireless/mwifiex/pcie.c
+++ b/drivers/net/wireless/mwifiex/pcie.c
@@ -39,17 +39,20 @@ static struct semaphore add_remove_card_sem;
static int mwifiex_pcie_enable_host_int(struct mwifiex_adapter *adapter);
static int mwifiex_pcie_resume(struct pci_dev *pdev);
-/*
- * This function is called after skb allocation to update
- * "skb->cb" with physical address of data pointer.
- */
-static phys_addr_t *mwifiex_update_sk_buff_pa(struct sk_buff *skb)
+static int
+mwifiex_map_pci_memory(struct mwifiex_adapter *adapter, struct sk_buff *skb,
+ int size, int flags)
{
- phys_addr_t *buf_pa = MWIFIEX_SKB_PACB(skb);
-
- *buf_pa = (phys_addr_t)virt_to_phys(skb->data);
+ struct pcie_service_card *card = adapter->card;
+ dma_addr_t buf_pa;
- return buf_pa;
+ buf_pa = pci_map_single(card->dev, skb->data, size, flags);
+ if (pci_dma_mapping_error(card->dev, buf_pa)) {
+ dev_err(adapter->dev, "failed to map pci memory!\n");
+ return -1;
+ }
+ memcpy(skb->cb, &buf_pa, sizeof(dma_addr_t));
+ return 0;
}
/*
@@ -59,9 +62,13 @@ static bool mwifiex_pcie_ok_to_access_hw(struct mwifiex_adapter *adapter)
{
u32 *cookie_addr;
struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
+
+ if (!reg->sleep_cookie)
+ return true;
- if (card->sleep_cookie) {
- cookie_addr = (u32 *)card->sleep_cookie->data;
+ if (card->sleep_cookie_vbase) {
+ cookie_addr = (u32 *)card->sleep_cookie_vbase;
dev_dbg(adapter->dev, "info: ACCESS_HW: sleep cookie=0x%x\n",
*cookie_addr);
if (*cookie_addr == FW_AWAKE_COOKIE)
@@ -91,6 +98,13 @@ static int mwifiex_pcie_probe(struct pci_dev *pdev,
card->dev = pdev;
+ if (ent->driver_data) {
+ struct mwifiex_pcie_device *data = (void *)ent->driver_data;
+ card->pcie.firmware = data->firmware;
+ card->pcie.reg = data->reg;
+ card->pcie.blksz_fw_dl = data->blksz_fw_dl;
+ }
+
if (mwifiex_add_card(card, &add_remove_card_sem, &pcie_ops,
MWIFIEX_PCIE)) {
pr_err("%s failed\n", __func__);
@@ -157,7 +171,7 @@ static int mwifiex_pcie_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct mwifiex_adapter *adapter;
struct pcie_service_card *card;
- int hs_actived, i;
+ int hs_actived;
if (pdev) {
card = (struct pcie_service_card *) pci_get_drvdata(pdev);
@@ -177,9 +191,6 @@ static int mwifiex_pcie_suspend(struct pci_dev *pdev, pm_message_t state)
/* Indicate device suspended */
adapter->is_suspended = true;
- for (i = 0; i < adapter->priv_num; i++)
- netif_carrier_off(adapter->priv[i]->netdev);
-
return 0;
}
@@ -195,7 +206,6 @@ static int mwifiex_pcie_resume(struct pci_dev *pdev)
{
struct mwifiex_adapter *adapter;
struct pcie_service_card *card;
- int i;
if (pdev) {
card = (struct pcie_service_card *) pci_get_drvdata(pdev);
@@ -217,23 +227,22 @@ static int mwifiex_pcie_resume(struct pci_dev *pdev)
adapter->is_suspended = false;
- for (i = 0; i < adapter->priv_num; i++)
- if (adapter->priv[i]->media_connected)
- netif_carrier_on(adapter->priv[i]->netdev);
-
mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
MWIFIEX_ASYNC_CMD);
return 0;
}
-#define PCIE_VENDOR_ID_MARVELL (0x11ab)
-#define PCIE_DEVICE_ID_MARVELL_88W8766P (0x2b30)
-
static DEFINE_PCI_DEVICE_TABLE(mwifiex_ids) = {
{
PCIE_VENDOR_ID_MARVELL, PCIE_DEVICE_ID_MARVELL_88W8766P,
PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ .driver_data = (unsigned long) &mwifiex_pcie8766,
+ },
+ {
+ PCIE_VENDOR_ID_MARVELL, PCIE_DEVICE_ID_MARVELL_88W8897,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ .driver_data = (unsigned long) &mwifiex_pcie8897,
},
{},
};
@@ -286,8 +295,10 @@ static int mwifiex_read_reg(struct mwifiex_adapter *adapter, int reg, u32 *data)
static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter)
{
int i = 0;
+ struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
- while (mwifiex_pcie_ok_to_access_hw(adapter)) {
+ while (reg->sleep_cookie && mwifiex_pcie_ok_to_access_hw(adapter)) {
i++;
usleep_range(10, 20);
/* 50ms max wait */
@@ -361,14 +372,246 @@ static int mwifiex_pcie_enable_host_int(struct mwifiex_adapter *adapter)
}
/*
- * This function creates buffer descriptor ring for TX
+ * This function initializes TX buffer ring descriptors
*/
-static int mwifiex_pcie_create_txbd_ring(struct mwifiex_adapter *adapter)
+static int mwifiex_init_txq_ring(struct mwifiex_adapter *adapter)
{
struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
+ struct mwifiex_pcie_buf_desc *desc;
+ struct mwifiex_pfu_buf_desc *desc2;
+ int i;
+
+ for (i = 0; i < MWIFIEX_MAX_TXRX_BD; i++) {
+ card->tx_buf_list[i] = NULL;
+ if (reg->pfu_enabled) {
+ card->txbd_ring[i] = (void *)card->txbd_ring_vbase +
+ (sizeof(*desc2) * i);
+ desc2 = card->txbd_ring[i];
+ memset(desc2, 0, sizeof(*desc2));
+ } else {
+ card->txbd_ring[i] = (void *)card->txbd_ring_vbase +
+ (sizeof(*desc) * i);
+ desc = card->txbd_ring[i];
+ memset(desc, 0, sizeof(*desc));
+ }
+ }
+
+ return 0;
+}
+
+/* This function initializes RX buffer ring descriptors. Each SKB is allocated
+ * here and after mapping PCI memory, its physical address is assigned to
+ * PCIE Rx buffer descriptor's physical address.
+ */
+static int mwifiex_init_rxq_ring(struct mwifiex_adapter *adapter)
+{
+ struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
struct sk_buff *skb;
+ struct mwifiex_pcie_buf_desc *desc;
+ struct mwifiex_pfu_buf_desc *desc2;
+ dma_addr_t buf_pa;
int i;
- phys_addr_t *buf_pa;
+
+ for (i = 0; i < MWIFIEX_MAX_TXRX_BD; i++) {
+ /* Allocate skb here so that firmware can DMA data from it */
+ skb = dev_alloc_skb(MWIFIEX_RX_DATA_BUF_SIZE);
+ if (!skb) {
+ dev_err(adapter->dev,
+ "Unable to allocate skb for RX ring.\n");
+ kfree(card->rxbd_ring_vbase);
+ return -ENOMEM;
+ }
+
+ if (mwifiex_map_pci_memory(adapter, skb,
+ MWIFIEX_RX_DATA_BUF_SIZE,
+ PCI_DMA_FROMDEVICE))
+ return -1;
+
+ MWIFIEX_SKB_PACB(skb, &buf_pa);
+
+ dev_dbg(adapter->dev,
+ "info: RX ring: skb=%p len=%d data=%p buf_pa=%#x:%x\n",
+ skb, skb->len, skb->data, (u32)buf_pa,
+ (u32)((u64)buf_pa >> 32));
+
+ card->rx_buf_list[i] = skb;
+ if (reg->pfu_enabled) {
+ card->rxbd_ring[i] = (void *)card->rxbd_ring_vbase +
+ (sizeof(*desc2) * i);
+ desc2 = card->rxbd_ring[i];
+ desc2->paddr = buf_pa;
+ desc2->len = (u16)skb->len;
+ desc2->frag_len = (u16)skb->len;
+ desc2->flags = reg->ring_flag_eop | reg->ring_flag_sop;
+ desc2->offset = 0;
+ } else {
+ card->rxbd_ring[i] = (void *)(card->rxbd_ring_vbase +
+ (sizeof(*desc) * i));
+ desc = card->rxbd_ring[i];
+ desc->paddr = buf_pa;
+ desc->len = (u16)skb->len;
+ desc->flags = 0;
+ }
+ }
+
+ return 0;
+}
+
+/* This function initializes event buffer ring descriptors. Each SKB is
+ * allocated here and after mapping PCI memory, its physical address is assigned
+ * to PCIE Rx buffer descriptor's physical address
+ */
+static int mwifiex_pcie_init_evt_ring(struct mwifiex_adapter *adapter)
+{
+ struct pcie_service_card *card = adapter->card;
+ struct mwifiex_evt_buf_desc *desc;
+ struct sk_buff *skb;
+ dma_addr_t buf_pa;
+ int i;
+
+ for (i = 0; i < MWIFIEX_MAX_EVT_BD; i++) {
+ /* Allocate skb here so that firmware can DMA data from it */
+ skb = dev_alloc_skb(MAX_EVENT_SIZE);
+ if (!skb) {
+ dev_err(adapter->dev,
+ "Unable to allocate skb for EVENT buf.\n");
+ kfree(card->evtbd_ring_vbase);
+ return -ENOMEM;
+ }
+ skb_put(skb, MAX_EVENT_SIZE);
+
+ if (mwifiex_map_pci_memory(adapter, skb, MAX_EVENT_SIZE,
+ PCI_DMA_FROMDEVICE))
+ return -1;
+
+ MWIFIEX_SKB_PACB(skb, &buf_pa);
+
+ dev_dbg(adapter->dev,
+ "info: EVT ring: skb=%p len=%d data=%p buf_pa=%#x:%x\n",
+ skb, skb->len, skb->data, (u32)buf_pa,
+ (u32)((u64)buf_pa >> 32));
+
+ card->evt_buf_list[i] = skb;
+ card->evtbd_ring[i] = (void *)(card->evtbd_ring_vbase +
+ (sizeof(*desc) * i));
+ desc = card->evtbd_ring[i];
+ desc->paddr = buf_pa;
+ desc->len = (u16)skb->len;
+ desc->flags = 0;
+ }
+
+ return 0;
+}
+
+/* This function cleans up TX buffer rings. If any of the buffer list has valid
+ * SKB address, associated SKB is freed.
+ */
+static void mwifiex_cleanup_txq_ring(struct mwifiex_adapter *adapter)
+{
+ struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
+ struct sk_buff *skb;
+ struct mwifiex_pcie_buf_desc *desc;
+ struct mwifiex_pfu_buf_desc *desc2;
+ int i;
+
+ for (i = 0; i < MWIFIEX_MAX_TXRX_BD; i++) {
+ if (reg->pfu_enabled) {
+ desc2 = card->txbd_ring[i];
+ if (card->tx_buf_list[i]) {
+ skb = card->tx_buf_list[i];
+ pci_unmap_single(card->dev, desc2->paddr,
+ skb->len, PCI_DMA_TODEVICE);
+ dev_kfree_skb_any(skb);
+ }
+ memset(desc2, 0, sizeof(*desc2));
+ } else {
+ desc = card->txbd_ring[i];
+ if (card->tx_buf_list[i]) {
+ skb = card->tx_buf_list[i];
+ pci_unmap_single(card->dev, desc->paddr,
+ skb->len, PCI_DMA_TODEVICE);
+ dev_kfree_skb_any(skb);
+ }
+ memset(desc, 0, sizeof(*desc));
+ }
+ card->tx_buf_list[i] = NULL;
+ }
+
+ return;
+}
+
+/* This function cleans up RX buffer rings. If any of the buffer list has valid
+ * SKB address, associated SKB is freed.
+ */
+static void mwifiex_cleanup_rxq_ring(struct mwifiex_adapter *adapter)
+{
+ struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
+ struct mwifiex_pcie_buf_desc *desc;
+ struct mwifiex_pfu_buf_desc *desc2;
+ struct sk_buff *skb;
+ int i;
+
+ for (i = 0; i < MWIFIEX_MAX_TXRX_BD; i++) {
+ if (reg->pfu_enabled) {
+ desc2 = card->rxbd_ring[i];
+ if (card->rx_buf_list[i]) {
+ skb = card->rx_buf_list[i];
+ pci_unmap_single(card->dev, desc2->paddr,
+ skb->len, PCI_DMA_TODEVICE);
+ dev_kfree_skb_any(skb);
+ }
+ memset(desc2, 0, sizeof(*desc2));
+ } else {
+ desc = card->rxbd_ring[i];
+ if (card->rx_buf_list[i]) {
+ skb = card->rx_buf_list[i];
+ pci_unmap_single(card->dev, desc->paddr,
+ skb->len, PCI_DMA_TODEVICE);
+ dev_kfree_skb_any(skb);
+ }
+ memset(desc, 0, sizeof(*desc));
+ }
+ card->rx_buf_list[i] = NULL;
+ }
+
+ return;
+}
+
+/* This function cleans up event buffer rings. If any of the buffer list has
+ * valid SKB address, associated SKB is freed.
+ */
+static void mwifiex_cleanup_evt_ring(struct mwifiex_adapter *adapter)
+{
+ struct pcie_service_card *card = adapter->card;
+ struct mwifiex_evt_buf_desc *desc;
+ struct sk_buff *skb;
+ int i;
+
+ for (i = 0; i < MWIFIEX_MAX_EVT_BD; i++) {
+ desc = card->evtbd_ring[i];
+ if (card->evt_buf_list[i]) {
+ skb = card->evt_buf_list[i];
+ pci_unmap_single(card->dev, desc->paddr, MAX_EVENT_SIZE,
+ PCI_DMA_FROMDEVICE);
+ dev_kfree_skb_any(skb);
+ }
+ card->evt_buf_list[i] = NULL;
+ memset(desc, 0, sizeof(*desc));
+ }
+
+ return;
+}
+
+/* This function creates buffer descriptor ring for TX
+ */
+static int mwifiex_pcie_create_txbd_ring(struct mwifiex_adapter *adapter)
+{
+ struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
/*
* driver maintaines the write pointer and firmware maintaines the read
@@ -376,76 +619,56 @@ static int mwifiex_pcie_create_txbd_ring(struct mwifiex_adapter *adapter)
* starts at zero with rollover bit set
*/
card->txbd_wrptr = 0;
- card->txbd_rdptr |= MWIFIEX_BD_FLAG_ROLLOVER_IND;
+
+ if (reg->pfu_enabled)
+ card->txbd_rdptr = 0;
+ else
+ card->txbd_rdptr |= reg->tx_rollover_ind;
/* allocate shared memory for the BD ring and divide the same in to
several descriptors */
- card->txbd_ring_size = sizeof(struct mwifiex_pcie_buf_desc) *
- MWIFIEX_MAX_TXRX_BD;
+ if (reg->pfu_enabled)
+ card->txbd_ring_size = sizeof(struct mwifiex_pfu_buf_desc) *
+ MWIFIEX_MAX_TXRX_BD;
+ else
+ card->txbd_ring_size = sizeof(struct mwifiex_pcie_buf_desc) *
+ MWIFIEX_MAX_TXRX_BD;
+
dev_dbg(adapter->dev, "info: txbd_ring: Allocating %d bytes\n",
card->txbd_ring_size);
- card->txbd_ring_vbase = kzalloc(card->txbd_ring_size, GFP_KERNEL);
+ card->txbd_ring_vbase = pci_alloc_consistent(card->dev,
+ card->txbd_ring_size,
+ &card->txbd_ring_pbase);
if (!card->txbd_ring_vbase) {
- dev_err(adapter->dev, "Unable to alloc buffer for txbd ring\n");
+ dev_err(adapter->dev,
+ "allocate consistent memory (%d bytes) failed!\n",
+ card->txbd_ring_size);
return -ENOMEM;
}
- card->txbd_ring_pbase = virt_to_phys(card->txbd_ring_vbase);
-
dev_dbg(adapter->dev,
"info: txbd_ring - base: %p, pbase: %#x:%x, len: %x\n",
- card->txbd_ring_vbase, (u32)card->txbd_ring_pbase,
+ card->txbd_ring_vbase, (unsigned int)card->txbd_ring_pbase,
(u32)((u64)card->txbd_ring_pbase >> 32), card->txbd_ring_size);
- for (i = 0; i < MWIFIEX_MAX_TXRX_BD; i++) {
- card->txbd_ring[i] = (struct mwifiex_pcie_buf_desc *)
- (card->txbd_ring_vbase +
- (sizeof(struct mwifiex_pcie_buf_desc)
- * i));
-
- /* Allocate buffer here so that firmware can DMA data from it */
- skb = dev_alloc_skb(MWIFIEX_RX_DATA_BUF_SIZE);
- if (!skb) {
- dev_err(adapter->dev, "Unable to allocate skb for TX ring.\n");
- kfree(card->txbd_ring_vbase);
- return -ENOMEM;
- }
- buf_pa = mwifiex_update_sk_buff_pa(skb);
-
- skb_put(skb, MWIFIEX_RX_DATA_BUF_SIZE);
- dev_dbg(adapter->dev, "info: TX ring: add new skb base: %p, "
- "buf_base: %p, buf_pbase: %#x:%x, buf_len: %#x\n",
- skb, skb->data, (u32)*buf_pa,
- (u32)(((u64)*buf_pa >> 32)), skb->len);
-
- card->tx_buf_list[i] = skb;
- card->txbd_ring[i]->paddr = *buf_pa;
- card->txbd_ring[i]->len = (u16)skb->len;
- card->txbd_ring[i]->flags = 0;
- }
-
- return 0;
+ return mwifiex_init_txq_ring(adapter);
}
static int mwifiex_pcie_delete_txbd_ring(struct mwifiex_adapter *adapter)
{
struct pcie_service_card *card = adapter->card;
- int i;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
- for (i = 0; i < MWIFIEX_MAX_TXRX_BD; i++) {
- if (card->tx_buf_list[i])
- dev_kfree_skb_any(card->tx_buf_list[i]);
- card->tx_buf_list[i] = NULL;
- card->txbd_ring[i]->paddr = 0;
- card->txbd_ring[i]->len = 0;
- card->txbd_ring[i]->flags = 0;
- card->txbd_ring[i] = NULL;
- }
+ mwifiex_cleanup_txq_ring(adapter);
- kfree(card->txbd_ring_vbase);
+ if (card->txbd_ring_vbase)
+ pci_free_consistent(card->dev, card->txbd_ring_size,
+ card->txbd_ring_vbase,
+ card->txbd_ring_pbase);
card->txbd_ring_size = 0;
card->txbd_wrptr = 0;
- card->txbd_rdptr = 0 | MWIFIEX_BD_FLAG_ROLLOVER_IND;
+ card->txbd_rdptr = 0 | reg->tx_rollover_ind;
card->txbd_ring_vbase = NULL;
+ card->txbd_ring_pbase = 0;
return 0;
}
@@ -456,9 +679,7 @@ static int mwifiex_pcie_delete_txbd_ring(struct mwifiex_adapter *adapter)
static int mwifiex_pcie_create_rxbd_ring(struct mwifiex_adapter *adapter)
{
struct pcie_service_card *card = adapter->card;
- struct sk_buff *skb;
- int i;
- phys_addr_t *buf_pa;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
/*
* driver maintaines the read pointer and firmware maintaines the write
@@ -466,19 +687,26 @@ static int mwifiex_pcie_create_rxbd_ring(struct mwifiex_adapter *adapter)
* starts at zero with rollover bit set
*/
card->rxbd_wrptr = 0;
- card->rxbd_rdptr |= MWIFIEX_BD_FLAG_ROLLOVER_IND;
+ card->rxbd_rdptr = reg->rx_rollover_ind;
+
+ if (reg->pfu_enabled)
+ card->rxbd_ring_size = sizeof(struct mwifiex_pfu_buf_desc) *
+ MWIFIEX_MAX_TXRX_BD;
+ else
+ card->rxbd_ring_size = sizeof(struct mwifiex_pcie_buf_desc) *
+ MWIFIEX_MAX_TXRX_BD;
- card->rxbd_ring_size = sizeof(struct mwifiex_pcie_buf_desc) *
- MWIFIEX_MAX_TXRX_BD;
dev_dbg(adapter->dev, "info: rxbd_ring: Allocating %d bytes\n",
card->rxbd_ring_size);
- card->rxbd_ring_vbase = kzalloc(card->rxbd_ring_size, GFP_KERNEL);
+ card->rxbd_ring_vbase = pci_alloc_consistent(card->dev,
+ card->rxbd_ring_size,
+ &card->rxbd_ring_pbase);
if (!card->rxbd_ring_vbase) {
- dev_err(adapter->dev, "Unable to allocate buffer for "
- "rxbd_ring.\n");
+ dev_err(adapter->dev,
+ "allocate consistent memory (%d bytes) failed!\n",
+ card->rxbd_ring_size);
return -ENOMEM;
}
- card->rxbd_ring_pbase = virt_to_phys(card->rxbd_ring_vbase);
dev_dbg(adapter->dev,
"info: rxbd_ring - base: %p, pbase: %#x:%x, len: %#x\n",
@@ -486,35 +714,7 @@ static int mwifiex_pcie_create_rxbd_ring(struct mwifiex_adapter *adapter)
(u32)((u64)card->rxbd_ring_pbase >> 32),
card->rxbd_ring_size);
- for (i = 0; i < MWIFIEX_MAX_TXRX_BD; i++) {
- card->rxbd_ring[i] = (struct mwifiex_pcie_buf_desc *)
- (card->rxbd_ring_vbase +
- (sizeof(struct mwifiex_pcie_buf_desc)
- * i));
-
- /* Allocate skb here so that firmware can DMA data from it */
- skb = dev_alloc_skb(MWIFIEX_RX_DATA_BUF_SIZE);
- if (!skb) {
- dev_err(adapter->dev,
- "Unable to allocate skb for RX ring.\n");
- kfree(card->rxbd_ring_vbase);
- return -ENOMEM;
- }
- buf_pa = mwifiex_update_sk_buff_pa(skb);
- skb_put(skb, MWIFIEX_RX_DATA_BUF_SIZE);
-
- dev_dbg(adapter->dev, "info: RX ring: add new skb base: %p, "
- "buf_base: %p, buf_pbase: %#x:%x, buf_len: %#x\n",
- skb, skb->data, (u32)*buf_pa, (u32)((u64)*buf_pa >> 32),
- skb->len);
-
- card->rx_buf_list[i] = skb;
- card->rxbd_ring[i]->paddr = *buf_pa;
- card->rxbd_ring[i]->len = (u16)skb->len;
- card->rxbd_ring[i]->flags = 0;
- }
-
- return 0;
+ return mwifiex_init_rxq_ring(adapter);
}
/*
@@ -523,23 +723,19 @@ static int mwifiex_pcie_create_rxbd_ring(struct mwifiex_adapter *adapter)
static int mwifiex_pcie_delete_rxbd_ring(struct mwifiex_adapter *adapter)
{
struct pcie_service_card *card = adapter->card;
- int i;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
- for (i = 0; i < MWIFIEX_MAX_TXRX_BD; i++) {
- if (card->rx_buf_list[i])
- dev_kfree_skb_any(card->rx_buf_list[i]);
- card->rx_buf_list[i] = NULL;
- card->rxbd_ring[i]->paddr = 0;
- card->rxbd_ring[i]->len = 0;
- card->rxbd_ring[i]->flags = 0;
- card->rxbd_ring[i] = NULL;
- }
+ mwifiex_cleanup_rxq_ring(adapter);
- kfree(card->rxbd_ring_vbase);
+ if (card->rxbd_ring_vbase)
+ pci_free_consistent(card->dev, card->rxbd_ring_size,
+ card->rxbd_ring_vbase,
+ card->rxbd_ring_pbase);
card->rxbd_ring_size = 0;
card->rxbd_wrptr = 0;
- card->rxbd_rdptr = 0 | MWIFIEX_BD_FLAG_ROLLOVER_IND;
+ card->rxbd_rdptr = 0 | reg->rx_rollover_ind;
card->rxbd_ring_vbase = NULL;
+ card->rxbd_ring_pbase = 0;
return 0;
}
@@ -550,9 +746,7 @@ static int mwifiex_pcie_delete_rxbd_ring(struct mwifiex_adapter *adapter)
static int mwifiex_pcie_create_evtbd_ring(struct mwifiex_adapter *adapter)
{
struct pcie_service_card *card = adapter->card;
- struct sk_buff *skb;
- int i;
- phys_addr_t *buf_pa;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
/*
* driver maintaines the read pointer and firmware maintaines the write
@@ -560,19 +754,22 @@ static int mwifiex_pcie_create_evtbd_ring(struct mwifiex_adapter *adapter)
* starts at zero with rollover bit set
*/
card->evtbd_wrptr = 0;
- card->evtbd_rdptr |= MWIFIEX_BD_FLAG_ROLLOVER_IND;
+ card->evtbd_rdptr = reg->evt_rollover_ind;
+
+ card->evtbd_ring_size = sizeof(struct mwifiex_evt_buf_desc) *
+ MWIFIEX_MAX_EVT_BD;
- card->evtbd_ring_size = sizeof(struct mwifiex_pcie_buf_desc) *
- MWIFIEX_MAX_EVT_BD;
dev_dbg(adapter->dev, "info: evtbd_ring: Allocating %d bytes\n",
card->evtbd_ring_size);
- card->evtbd_ring_vbase = kzalloc(card->evtbd_ring_size, GFP_KERNEL);
+ card->evtbd_ring_vbase = pci_alloc_consistent(card->dev,
+ card->evtbd_ring_size,
+ &card->evtbd_ring_pbase);
if (!card->evtbd_ring_vbase) {
dev_err(adapter->dev,
- "Unable to allocate buffer. Terminating download\n");
+ "allocate consistent memory (%d bytes) failed!\n",
+ card->evtbd_ring_size);
return -ENOMEM;
}
- card->evtbd_ring_pbase = virt_to_phys(card->evtbd_ring_vbase);
dev_dbg(adapter->dev,
"info: CMDRSP/EVT bd_ring - base: %p pbase: %#x:%x len: %#x\n",
@@ -580,35 +777,7 @@ static int mwifiex_pcie_create_evtbd_ring(struct mwifiex_adapter *adapter)
(u32)((u64)card->evtbd_ring_pbase >> 32),
card->evtbd_ring_size);
- for (i = 0; i < MWIFIEX_MAX_EVT_BD; i++) {
- card->evtbd_ring[i] = (struct mwifiex_pcie_buf_desc *)
- (card->evtbd_ring_vbase +
- (sizeof(struct mwifiex_pcie_buf_desc)
- * i));
-
- /* Allocate skb here so that firmware can DMA data from it */
- skb = dev_alloc_skb(MAX_EVENT_SIZE);
- if (!skb) {
- dev_err(adapter->dev,
- "Unable to allocate skb for EVENT buf.\n");
- kfree(card->evtbd_ring_vbase);
- return -ENOMEM;
- }
- buf_pa = mwifiex_update_sk_buff_pa(skb);
- skb_put(skb, MAX_EVENT_SIZE);
-
- dev_dbg(adapter->dev, "info: Evt ring: add new skb. base: %p, "
- "buf_base: %p, buf_pbase: %#x:%x, buf_len: %#x\n",
- skb, skb->data, (u32)*buf_pa, (u32)((u64)*buf_pa >> 32),
- skb->len);
-
- card->evt_buf_list[i] = skb;
- card->evtbd_ring[i]->paddr = *buf_pa;
- card->evtbd_ring[i]->len = (u16)skb->len;
- card->evtbd_ring[i]->flags = 0;
- }
-
- return 0;
+ return mwifiex_pcie_init_evt_ring(adapter);
}
/*
@@ -617,23 +786,19 @@ static int mwifiex_pcie_create_evtbd_ring(struct mwifiex_adapter *adapter)
static int mwifiex_pcie_delete_evtbd_ring(struct mwifiex_adapter *adapter)
{
struct pcie_service_card *card = adapter->card;
- int i;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
- for (i = 0; i < MWIFIEX_MAX_EVT_BD; i++) {
- if (card->evt_buf_list[i])
- dev_kfree_skb_any(card->evt_buf_list[i]);
- card->evt_buf_list[i] = NULL;
- card->evtbd_ring[i]->paddr = 0;
- card->evtbd_ring[i]->len = 0;
- card->evtbd_ring[i]->flags = 0;
- card->evtbd_ring[i] = NULL;
- }
+ mwifiex_cleanup_evt_ring(adapter);
- kfree(card->evtbd_ring_vbase);
+ if (card->evtbd_ring_vbase)
+ pci_free_consistent(card->dev, card->evtbd_ring_size,
+ card->evtbd_ring_vbase,
+ card->evtbd_ring_pbase);
card->evtbd_wrptr = 0;
- card->evtbd_rdptr = 0 | MWIFIEX_BD_FLAG_ROLLOVER_IND;
+ card->evtbd_rdptr = 0 | reg->evt_rollover_ind;
card->evtbd_ring_size = 0;
card->evtbd_ring_vbase = NULL;
+ card->evtbd_ring_pbase = 0;
return 0;
}
@@ -653,21 +818,12 @@ static int mwifiex_pcie_alloc_cmdrsp_buf(struct mwifiex_adapter *adapter)
"Unable to allocate skb for command response data.\n");
return -ENOMEM;
}
- mwifiex_update_sk_buff_pa(skb);
skb_put(skb, MWIFIEX_UPLD_SIZE);
- card->cmdrsp_buf = skb;
+ if (mwifiex_map_pci_memory(adapter, skb, MWIFIEX_UPLD_SIZE,
+ PCI_DMA_FROMDEVICE))
+ return -1;
- skb = NULL;
- /* Allocate memory for sending command to firmware */
- skb = dev_alloc_skb(MWIFIEX_SIZE_OF_CMD_BUFFER);
- if (!skb) {
- dev_err(adapter->dev,
- "Unable to allocate skb for command data.\n");
- return -ENOMEM;
- }
- mwifiex_update_sk_buff_pa(skb);
- skb_put(skb, MWIFIEX_SIZE_OF_CMD_BUFFER);
- card->cmd_buf = skb;
+ card->cmdrsp_buf = skb;
return 0;
}
@@ -678,18 +834,26 @@ static int mwifiex_pcie_alloc_cmdrsp_buf(struct mwifiex_adapter *adapter)
static int mwifiex_pcie_delete_cmdrsp_buf(struct mwifiex_adapter *adapter)
{
struct pcie_service_card *card;
+ dma_addr_t buf_pa;
if (!adapter)
return 0;
card = adapter->card;
- if (card && card->cmdrsp_buf)
+ if (card && card->cmdrsp_buf) {
+ MWIFIEX_SKB_PACB(card->cmdrsp_buf, &buf_pa);
+ pci_unmap_single(card->dev, buf_pa, MWIFIEX_UPLD_SIZE,
+ PCI_DMA_FROMDEVICE);
dev_kfree_skb_any(card->cmdrsp_buf);
+ }
- if (card && card->cmd_buf)
+ if (card && card->cmd_buf) {
+ MWIFIEX_SKB_PACB(card->cmd_buf, &buf_pa);
+ pci_unmap_single(card->dev, buf_pa, MWIFIEX_SIZE_OF_CMD_BUFFER,
+ PCI_DMA_TODEVICE);
dev_kfree_skb_any(card->cmd_buf);
-
+ }
return 0;
}
@@ -698,27 +862,19 @@ static int mwifiex_pcie_delete_cmdrsp_buf(struct mwifiex_adapter *adapter)
*/
static int mwifiex_pcie_alloc_sleep_cookie_buf(struct mwifiex_adapter *adapter)
{
- struct sk_buff *skb;
struct pcie_service_card *card = adapter->card;
- /* Allocate memory for sleep cookie */
- skb = dev_alloc_skb(sizeof(u32));
- if (!skb) {
- dev_err(adapter->dev,
- "Unable to allocate skb for sleep cookie!\n");
+ card->sleep_cookie_vbase = pci_alloc_consistent(card->dev, sizeof(u32),
+ &card->sleep_cookie_pbase);
+ if (!card->sleep_cookie_vbase) {
+ dev_err(adapter->dev, "pci_alloc_consistent failed!\n");
return -ENOMEM;
}
- mwifiex_update_sk_buff_pa(skb);
- skb_put(skb, sizeof(u32));
-
/* Init val of Sleep Cookie */
- *(u32 *)skb->data = FW_AWAKE_COOKIE;
+ *(u32 *)card->sleep_cookie_vbase = FW_AWAKE_COOKIE;
dev_dbg(adapter->dev, "alloc_scook: sleep cookie=0x%x\n",
- *((u32 *)skb->data));
-
- /* Save the sleep cookie */
- card->sleep_cookie = skb;
+ *((u32 *)card->sleep_cookie_vbase));
return 0;
}
@@ -735,86 +891,237 @@ static int mwifiex_pcie_delete_sleep_cookie_buf(struct mwifiex_adapter *adapter)
card = adapter->card;
- if (card && card->sleep_cookie) {
- dev_kfree_skb_any(card->sleep_cookie);
- card->sleep_cookie = NULL;
+ if (card && card->sleep_cookie_vbase) {
+ pci_free_consistent(card->dev, sizeof(u32),
+ card->sleep_cookie_vbase,
+ card->sleep_cookie_pbase);
+ card->sleep_cookie_vbase = NULL;
}
return 0;
}
+/* This function flushes the TX buffer descriptor ring
+ * This function defined as handler is also called while cleaning TXRX
+ * during disconnect/ bss stop.
+ */
+static int mwifiex_clean_pcie_ring_buf(struct mwifiex_adapter *adapter)
+{
+ struct pcie_service_card *card = adapter->card;
+
+ if (!mwifiex_pcie_txbd_empty(card, card->txbd_rdptr)) {
+ card->txbd_flush = 1;
+ /* write pointer already set at last send
+ * send dnld-rdy intr again, wait for completion.
+ */
+ if (mwifiex_write_reg(adapter, PCIE_CPU_INT_EVENT,
+ CPU_INTR_DNLD_RDY)) {
+ dev_err(adapter->dev,
+ "failed to assert dnld-rdy interrupt.\n");
+ return -1;
+ }
+ }
+ return 0;
+}
+
/*
- * This function sends data buffer to device
+ * This function unmaps and frees downloaded data buffer
*/
-static int
-mwifiex_pcie_send_data(struct mwifiex_adapter *adapter, struct sk_buff *skb)
+static int mwifiex_pcie_send_data_complete(struct mwifiex_adapter *adapter)
{
+ struct sk_buff *skb;
+ dma_addr_t buf_pa;
+ u32 wrdoneidx, rdptr, num_tx_buffs, unmap_count = 0;
+ struct mwifiex_pcie_buf_desc *desc;
+ struct mwifiex_pfu_buf_desc *desc2;
struct pcie_service_card *card = adapter->card;
- u32 wrindx, rdptr;
- phys_addr_t *buf_pa;
- __le16 *tmp;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
if (!mwifiex_pcie_ok_to_access_hw(adapter))
mwifiex_pm_wakeup_card(adapter);
/* Read the TX ring read pointer set by firmware */
- if (mwifiex_read_reg(adapter, REG_TXBD_RDPTR, &rdptr)) {
+ if (mwifiex_read_reg(adapter, reg->tx_rdptr, &rdptr)) {
dev_err(adapter->dev,
- "SEND DATA: failed to read REG_TXBD_RDPTR\n");
+ "SEND COMP: failed to read reg->tx_rdptr\n");
return -1;
}
- wrindx = card->txbd_wrptr & MWIFIEX_TXBD_MASK;
+ dev_dbg(adapter->dev, "SEND COMP: rdptr_prev=0x%x, rdptr=0x%x\n",
+ card->txbd_rdptr, rdptr);
- dev_dbg(adapter->dev, "info: SEND DATA: <Rd: %#x, Wr: %#x>\n", rdptr,
- card->txbd_wrptr);
- if (((card->txbd_wrptr & MWIFIEX_TXBD_MASK) !=
- (rdptr & MWIFIEX_TXBD_MASK)) ||
- ((card->txbd_wrptr & MWIFIEX_BD_FLAG_ROLLOVER_IND) !=
- (rdptr & MWIFIEX_BD_FLAG_ROLLOVER_IND))) {
- struct sk_buff *skb_data;
+ num_tx_buffs = MWIFIEX_MAX_TXRX_BD << reg->tx_start_ptr;
+ /* free from previous txbd_rdptr to current txbd_rdptr */
+ while (((card->txbd_rdptr & reg->tx_mask) !=
+ (rdptr & reg->tx_mask)) ||
+ ((card->txbd_rdptr & reg->tx_rollover_ind) !=
+ (rdptr & reg->tx_rollover_ind))) {
+ wrdoneidx = (card->txbd_rdptr & reg->tx_mask) >>
+ reg->tx_start_ptr;
+
+ skb = card->tx_buf_list[wrdoneidx];
+ if (skb) {
+ dev_dbg(adapter->dev,
+ "SEND COMP: Detach skb %p at txbd_rdidx=%d\n",
+ skb, wrdoneidx);
+ MWIFIEX_SKB_PACB(skb, &buf_pa);
+ pci_unmap_single(card->dev, buf_pa, skb->len,
+ PCI_DMA_TODEVICE);
+
+ unmap_count++;
+
+ if (card->txbd_flush)
+ mwifiex_write_data_complete(adapter, skb, 0,
+ -1);
+ else
+ mwifiex_write_data_complete(adapter, skb, 0, 0);
+ }
+
+ card->tx_buf_list[wrdoneidx] = NULL;
+
+ if (reg->pfu_enabled) {
+ desc2 = (void *)card->txbd_ring[wrdoneidx];
+ memset(desc2, 0, sizeof(*desc2));
+ } else {
+ desc = card->txbd_ring[wrdoneidx];
+ memset(desc, 0, sizeof(*desc));
+ }
+ switch (card->dev->device) {
+ case PCIE_DEVICE_ID_MARVELL_88W8766P:
+ card->txbd_rdptr++;
+ break;
+ case PCIE_DEVICE_ID_MARVELL_88W8897:
+ card->txbd_rdptr += reg->ring_tx_start_ptr;
+ break;
+ }
+
+
+ if ((card->txbd_rdptr & reg->tx_mask) == num_tx_buffs)
+ card->txbd_rdptr = ((card->txbd_rdptr &
+ reg->tx_rollover_ind) ^
+ reg->tx_rollover_ind);
+ }
+
+ if (unmap_count)
+ adapter->data_sent = false;
+
+ if (card->txbd_flush) {
+ if (mwifiex_pcie_txbd_empty(card, card->txbd_rdptr))
+ card->txbd_flush = 0;
+ else
+ mwifiex_clean_pcie_ring_buf(adapter);
+ }
+
+ return 0;
+}
+
+/* This function sends data buffer to device. First 4 bytes of payload
+ * are filled with payload length and payload type. Then this payload
+ * is mapped to PCI device memory. Tx ring pointers are advanced accordingly.
+ * Download ready interrupt to FW is deffered if Tx ring is not full and
+ * additional payload can be accomodated.
+ */
+static int
+mwifiex_pcie_send_data(struct mwifiex_adapter *adapter, struct sk_buff *skb,
+ struct mwifiex_tx_param *tx_param)
+{
+ struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
+ u32 wrindx, num_tx_buffs, rx_val;
+ int ret;
+ dma_addr_t buf_pa;
+ struct mwifiex_pcie_buf_desc *desc;
+ struct mwifiex_pfu_buf_desc *desc2;
+ __le16 *tmp;
+
+ if (!(skb->data && skb->len)) {
+ dev_err(adapter->dev, "%s(): invalid parameter <%p, %#x>\n",
+ __func__, skb->data, skb->len);
+ return -1;
+ }
+
+ if (!mwifiex_pcie_ok_to_access_hw(adapter))
+ mwifiex_pm_wakeup_card(adapter);
+
+ num_tx_buffs = MWIFIEX_MAX_TXRX_BD << reg->tx_start_ptr;
+ dev_dbg(adapter->dev, "info: SEND DATA: <Rd: %#x, Wr: %#x>\n",
+ card->txbd_rdptr, card->txbd_wrptr);
+ if (mwifiex_pcie_txbd_not_full(card)) {
u8 *payload;
adapter->data_sent = true;
- skb_data = card->tx_buf_list[wrindx];
- memcpy(skb_data->data, skb->data, skb->len);
- payload = skb_data->data;
+ payload = skb->data;
tmp = (__le16 *)&payload[0];
*tmp = cpu_to_le16((u16)skb->len);
tmp = (__le16 *)&payload[2];
*tmp = cpu_to_le16(MWIFIEX_TYPE_DATA);
- skb_put(skb_data, MWIFIEX_RX_DATA_BUF_SIZE - skb_data->len);
- skb_trim(skb_data, skb->len);
- buf_pa = MWIFIEX_SKB_PACB(skb_data);
- card->txbd_ring[wrindx]->paddr = *buf_pa;
- card->txbd_ring[wrindx]->len = (u16)skb_data->len;
- card->txbd_ring[wrindx]->flags = MWIFIEX_BD_FLAG_FIRST_DESC |
- MWIFIEX_BD_FLAG_LAST_DESC;
-
- if ((++card->txbd_wrptr & MWIFIEX_TXBD_MASK) ==
- MWIFIEX_MAX_TXRX_BD)
- card->txbd_wrptr = ((card->txbd_wrptr &
- MWIFIEX_BD_FLAG_ROLLOVER_IND) ^
- MWIFIEX_BD_FLAG_ROLLOVER_IND);
- /* Write the TX ring write pointer in to REG_TXBD_WRPTR */
- if (mwifiex_write_reg(adapter, REG_TXBD_WRPTR,
- card->txbd_wrptr)) {
- dev_err(adapter->dev,
- "SEND DATA: failed to write REG_TXBD_WRPTR\n");
- return 0;
+ if (mwifiex_map_pci_memory(adapter, skb, skb->len ,
+ PCI_DMA_TODEVICE))
+ return -1;
+
+ wrindx = (card->txbd_wrptr & reg->tx_mask) >> reg->tx_start_ptr;
+ MWIFIEX_SKB_PACB(skb, &buf_pa);
+ card->tx_buf_list[wrindx] = skb;
+
+ if (reg->pfu_enabled) {
+ desc2 = (void *)card->txbd_ring[wrindx];
+ desc2->paddr = buf_pa;
+ desc2->len = (u16)skb->len;
+ desc2->frag_len = (u16)skb->len;
+ desc2->offset = 0;
+ desc2->flags = MWIFIEX_BD_FLAG_FIRST_DESC |
+ MWIFIEX_BD_FLAG_LAST_DESC;
+ } else {
+ desc = card->txbd_ring[wrindx];
+ desc->paddr = buf_pa;
+ desc->len = (u16)skb->len;
+ desc->flags = MWIFIEX_BD_FLAG_FIRST_DESC |
+ MWIFIEX_BD_FLAG_LAST_DESC;
}
- /* Send the TX ready interrupt */
- if (mwifiex_write_reg(adapter, PCIE_CPU_INT_EVENT,
- CPU_INTR_DNLD_RDY)) {
+ switch (card->dev->device) {
+ case PCIE_DEVICE_ID_MARVELL_88W8766P:
+ card->txbd_wrptr++;
+ break;
+ case PCIE_DEVICE_ID_MARVELL_88W8897:
+ card->txbd_wrptr += reg->ring_tx_start_ptr;
+ break;
+ }
+
+ if ((card->txbd_wrptr & reg->tx_mask) == num_tx_buffs)
+ card->txbd_wrptr = ((card->txbd_wrptr &
+ reg->tx_rollover_ind) ^
+ reg->tx_rollover_ind);
+
+ rx_val = card->rxbd_rdptr & reg->rx_wrap_mask;
+ /* Write the TX ring write pointer in to reg->tx_wrptr */
+ if (mwifiex_write_reg(adapter, reg->tx_wrptr,
+ card->txbd_wrptr | rx_val)) {
dev_err(adapter->dev,
- "SEND DATA: failed to assert door-bell intr\n");
- return -1;
+ "SEND DATA: failed to write reg->tx_wrptr\n");
+ ret = -1;
+ goto done_unmap;
+ }
+ if ((mwifiex_pcie_txbd_not_full(card)) &&
+ tx_param->next_pkt_len) {
+ /* have more packets and TxBD still can hold more */
+ dev_dbg(adapter->dev,
+ "SEND DATA: delay dnld-rdy interrupt.\n");
+ adapter->data_sent = false;
+ } else {
+ /* Send the TX ready interrupt */
+ if (mwifiex_write_reg(adapter, PCIE_CPU_INT_EVENT,
+ CPU_INTR_DNLD_RDY)) {
+ dev_err(adapter->dev,
+ "SEND DATA: failed to assert dnld-rdy interrupt.\n");
+ ret = -1;
+ goto done_unmap;
+ }
}
dev_dbg(adapter->dev, "info: SEND DATA: Updated <Rd: %#x, Wr: "
"%#x> and sent packet to firmware successfully\n",
- rdptr, card->txbd_wrptr);
+ card->txbd_rdptr, card->txbd_wrptr);
} else {
dev_dbg(adapter->dev,
"info: TX Ring full, can't send packets to fw\n");
@@ -827,7 +1134,17 @@ mwifiex_pcie_send_data(struct mwifiex_adapter *adapter, struct sk_buff *skb)
return -EBUSY;
}
- return 0;
+ return -EINPROGRESS;
+done_unmap:
+ MWIFIEX_SKB_PACB(skb, &buf_pa);
+ pci_unmap_single(card->dev, buf_pa, skb->len, PCI_DMA_TODEVICE);
+ card->tx_buf_list[wrindx] = NULL;
+ if (reg->pfu_enabled)
+ memset(desc2, 0, sizeof(*desc2));
+ else
+ memset(desc, 0, sizeof(*desc));
+
+ return ret;
}
/*
@@ -837,78 +1154,119 @@ mwifiex_pcie_send_data(struct mwifiex_adapter *adapter, struct sk_buff *skb)
static int mwifiex_pcie_process_recv_data(struct mwifiex_adapter *adapter)
{
struct pcie_service_card *card = adapter->card;
- u32 wrptr, rd_index;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
+ u32 wrptr, rd_index, tx_val;
+ dma_addr_t buf_pa;
int ret = 0;
struct sk_buff *skb_tmp = NULL;
+ struct mwifiex_pcie_buf_desc *desc;
+ struct mwifiex_pfu_buf_desc *desc2;
+
+ if (!mwifiex_pcie_ok_to_access_hw(adapter))
+ mwifiex_pm_wakeup_card(adapter);
/* Read the RX ring Write pointer set by firmware */
- if (mwifiex_read_reg(adapter, REG_RXBD_WRPTR, &wrptr)) {
+ if (mwifiex_read_reg(adapter, reg->rx_wrptr, &wrptr)) {
dev_err(adapter->dev,
- "RECV DATA: failed to read REG_TXBD_RDPTR\n");
+ "RECV DATA: failed to read reg->rx_wrptr\n");
ret = -1;
goto done;
}
+ card->rxbd_wrptr = wrptr;
- while (((wrptr & MWIFIEX_RXBD_MASK) !=
- (card->rxbd_rdptr & MWIFIEX_RXBD_MASK)) ||
- ((wrptr & MWIFIEX_BD_FLAG_ROLLOVER_IND) ==
- (card->rxbd_rdptr & MWIFIEX_BD_FLAG_ROLLOVER_IND))) {
+ while (((wrptr & reg->rx_mask) !=
+ (card->rxbd_rdptr & reg->rx_mask)) ||
+ ((wrptr & reg->rx_rollover_ind) ==
+ (card->rxbd_rdptr & reg->rx_rollover_ind))) {
struct sk_buff *skb_data;
u16 rx_len;
+ __le16 pkt_len;
- rd_index = card->rxbd_rdptr & MWIFIEX_RXBD_MASK;
+ rd_index = card->rxbd_rdptr & reg->rx_mask;
skb_data = card->rx_buf_list[rd_index];
+ MWIFIEX_SKB_PACB(skb_data, &buf_pa);
+ pci_unmap_single(card->dev, buf_pa, MWIFIEX_RX_DATA_BUF_SIZE,
+ PCI_DMA_FROMDEVICE);
+ card->rx_buf_list[rd_index] = NULL;
+
/* Get data length from interface header -
- first byte is len, second byte is type */
- rx_len = *((u16 *)skb_data->data);
+ * first 2 bytes for len, next 2 bytes is for type
+ */
+ pkt_len = *((__le16 *)skb_data->data);
+ rx_len = le16_to_cpu(pkt_len);
+ skb_put(skb_data, rx_len);
dev_dbg(adapter->dev,
"info: RECV DATA: Rd=%#x, Wr=%#x, Len=%d\n",
card->rxbd_rdptr, wrptr, rx_len);
- skb_tmp = dev_alloc_skb(rx_len);
+ skb_pull(skb_data, INTF_HEADER_LEN);
+ mwifiex_handle_rx_packet(adapter, skb_data);
+
+ skb_tmp = dev_alloc_skb(MWIFIEX_RX_DATA_BUF_SIZE);
if (!skb_tmp) {
- dev_dbg(adapter->dev,
- "info: Failed to alloc skb for RX\n");
- ret = -EBUSY;
- goto done;
+ dev_err(adapter->dev,
+ "Unable to allocate skb.\n");
+ return -ENOMEM;
}
- skb_put(skb_tmp, rx_len);
+ if (mwifiex_map_pci_memory(adapter, skb_tmp,
+ MWIFIEX_RX_DATA_BUF_SIZE,
+ PCI_DMA_FROMDEVICE))
+ return -1;
+
+ MWIFIEX_SKB_PACB(skb_tmp, &buf_pa);
+
+ dev_dbg(adapter->dev,
+ "RECV DATA: Attach new sk_buff %p at rxbd_rdidx=%d\n",
+ skb_tmp, rd_index);
+ card->rx_buf_list[rd_index] = skb_tmp;
+
+ if (reg->pfu_enabled) {
+ desc2 = (void *)card->rxbd_ring[rd_index];
+ desc2->paddr = buf_pa;
+ desc2->len = skb_tmp->len;
+ desc2->frag_len = skb_tmp->len;
+ desc2->offset = 0;
+ desc2->flags = reg->ring_flag_sop | reg->ring_flag_eop;
+ } else {
+ desc = card->rxbd_ring[rd_index];
+ desc->paddr = buf_pa;
+ desc->len = skb_tmp->len;
+ desc->flags = 0;
+ }
- memcpy(skb_tmp->data, skb_data->data + INTF_HEADER_LEN, rx_len);
- if ((++card->rxbd_rdptr & MWIFIEX_RXBD_MASK) ==
+ if ((++card->rxbd_rdptr & reg->rx_mask) ==
MWIFIEX_MAX_TXRX_BD) {
card->rxbd_rdptr = ((card->rxbd_rdptr &
- MWIFIEX_BD_FLAG_ROLLOVER_IND) ^
- MWIFIEX_BD_FLAG_ROLLOVER_IND);
+ reg->rx_rollover_ind) ^
+ reg->rx_rollover_ind);
}
dev_dbg(adapter->dev, "info: RECV DATA: <Rd: %#x, Wr: %#x>\n",
card->rxbd_rdptr, wrptr);
- /* Write the RX ring read pointer in to REG_RXBD_RDPTR */
- if (mwifiex_write_reg(adapter, REG_RXBD_RDPTR,
- card->rxbd_rdptr)) {
+ tx_val = card->txbd_wrptr & reg->tx_wrap_mask;
+ /* Write the RX ring read pointer in to reg->rx_rdptr */
+ if (mwifiex_write_reg(adapter, reg->rx_rdptr,
+ card->rxbd_rdptr | tx_val)) {
dev_err(adapter->dev,
- "RECV DATA: failed to write REG_RXBD_RDPTR\n");
+ "RECV DATA: failed to write reg->rx_rdptr\n");
ret = -1;
goto done;
}
/* Read the RX ring Write pointer set by firmware */
- if (mwifiex_read_reg(adapter, REG_RXBD_WRPTR, &wrptr)) {
+ if (mwifiex_read_reg(adapter, reg->rx_wrptr, &wrptr)) {
dev_err(adapter->dev,
- "RECV DATA: failed to read REG_TXBD_RDPTR\n");
+ "RECV DATA: failed to read reg->rx_wrptr\n");
ret = -1;
goto done;
}
dev_dbg(adapter->dev,
"info: RECV DATA: Rcvd packet from fw successfully\n");
- mwifiex_handle_rx_packet(adapter, skb_tmp);
+ card->rxbd_wrptr = wrptr;
}
done:
- if (ret && skb_tmp)
- dev_kfree_skb_any(skb_tmp);
return ret;
}
@@ -918,40 +1276,54 @@ done:
static int
mwifiex_pcie_send_boot_cmd(struct mwifiex_adapter *adapter, struct sk_buff *skb)
{
- phys_addr_t *buf_pa = MWIFIEX_SKB_PACB(skb);
+ dma_addr_t buf_pa;
+ struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
- if (!(skb->data && skb->len && *buf_pa)) {
+ if (!(skb->data && skb->len)) {
dev_err(adapter->dev,
- "Invalid parameter in %s <%p, %#x:%x, %x>\n",
- __func__, skb->data, skb->len,
- (u32)*buf_pa, (u32)((u64)*buf_pa >> 32));
+ "Invalid parameter in %s <%p. len %d>\n",
+ __func__, skb->data, skb->len);
return -1;
}
- /* Write the lower 32bits of the physical address to scratch
- * register 0 */
- if (mwifiex_write_reg(adapter, PCIE_SCRATCH_0_REG, (u32)*buf_pa)) {
+ if (mwifiex_map_pci_memory(adapter, skb, skb->len , PCI_DMA_TODEVICE))
+ return -1;
+
+ MWIFIEX_SKB_PACB(skb, &buf_pa);
+
+ /* Write the lower 32bits of the physical address to low command
+ * address scratch register
+ */
+ if (mwifiex_write_reg(adapter, reg->cmd_addr_lo, (u32)buf_pa)) {
dev_err(adapter->dev,
"%s: failed to write download command to boot code.\n",
__func__);
+ pci_unmap_single(card->dev, buf_pa, MWIFIEX_UPLD_SIZE,
+ PCI_DMA_TODEVICE);
return -1;
}
- /* Write the upper 32bits of the physical address to scratch
- * register 1 */
- if (mwifiex_write_reg(adapter, PCIE_SCRATCH_1_REG,
- (u32)((u64)*buf_pa >> 32))) {
+ /* Write the upper 32bits of the physical address to high command
+ * address scratch register
+ */
+ if (mwifiex_write_reg(adapter, reg->cmd_addr_hi,
+ (u32)((u64)buf_pa >> 32))) {
dev_err(adapter->dev,
"%s: failed to write download command to boot code.\n",
__func__);
+ pci_unmap_single(card->dev, buf_pa, MWIFIEX_UPLD_SIZE,
+ PCI_DMA_TODEVICE);
return -1;
}
- /* Write the command length to scratch register 2 */
- if (mwifiex_write_reg(adapter, PCIE_SCRATCH_2_REG, skb->len)) {
+ /* Write the command length to cmd_size scratch register */
+ if (mwifiex_write_reg(adapter, reg->cmd_size, skb->len)) {
dev_err(adapter->dev,
- "%s: failed to write command len to scratch reg 2\n",
+ "%s: failed to write command len to cmd_size scratch reg\n",
__func__);
+ pci_unmap_single(card->dev, buf_pa, MWIFIEX_UPLD_SIZE,
+ PCI_DMA_TODEVICE);
return -1;
}
@@ -960,22 +1332,43 @@ mwifiex_pcie_send_boot_cmd(struct mwifiex_adapter *adapter, struct sk_buff *skb)
CPU_INTR_DOOR_BELL)) {
dev_err(adapter->dev,
"%s: failed to assert door-bell intr\n", __func__);
+ pci_unmap_single(card->dev, buf_pa,
+ MWIFIEX_UPLD_SIZE, PCI_DMA_TODEVICE);
return -1;
}
return 0;
}
-/*
- * This function downloads commands to the device
+/* This function init rx port in firmware which in turn enables to receive data
+ * from device before transmitting any packet.
+ */
+static int mwifiex_pcie_init_fw_port(struct mwifiex_adapter *adapter)
+{
+ struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
+ int tx_wrap = card->txbd_wrptr & reg->tx_wrap_mask;
+
+ /* Write the RX ring read pointer in to reg->rx_rdptr */
+ if (mwifiex_write_reg(adapter, reg->rx_rdptr, card->rxbd_rdptr |
+ tx_wrap)) {
+ dev_err(adapter->dev,
+ "RECV DATA: failed to write reg->rx_rdptr\n");
+ return -1;
+ }
+ return 0;
+}
+
+/* This function downloads commands to the device
*/
static int
mwifiex_pcie_send_cmd(struct mwifiex_adapter *adapter, struct sk_buff *skb)
{
struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
int ret = 0;
- phys_addr_t *cmd_buf_pa;
- phys_addr_t *cmdrsp_buf_pa;
+ dma_addr_t cmd_buf_pa, cmdrsp_buf_pa;
+ u8 *payload = (u8 *)skb->data;
if (!(skb->data && skb->len)) {
dev_err(adapter->dev, "Invalid parameter in %s <%p, %#x>\n",
@@ -990,21 +1383,22 @@ mwifiex_pcie_send_cmd(struct mwifiex_adapter *adapter, struct sk_buff *skb)
return -EBUSY;
}
- /* Make sure a command buffer is available */
- if (!card->cmd_buf) {
- dev_err(adapter->dev, "Command buffer not available\n");
- return -EBUSY;
- }
+ if (!mwifiex_pcie_ok_to_access_hw(adapter))
+ mwifiex_pm_wakeup_card(adapter);
adapter->cmd_sent = true;
- /* Copy the given skb in to DMA accessable shared buffer */
- skb_put(card->cmd_buf, MWIFIEX_SIZE_OF_CMD_BUFFER - card->cmd_buf->len);
- skb_trim(card->cmd_buf, skb->len);
- memcpy(card->cmd_buf->data, skb->data, skb->len);
+
+ *(__le16 *)&payload[0] = cpu_to_le16((u16)skb->len);
+ *(__le16 *)&payload[2] = cpu_to_le16(MWIFIEX_TYPE_CMD);
+
+ if (mwifiex_map_pci_memory(adapter, skb, skb->len, PCI_DMA_TODEVICE))
+ return -1;
+
+ card->cmd_buf = skb;
/* To send a command, the driver will:
1. Write the 64bit physical address of the data buffer to
- SCRATCH1 + SCRATCH0
+ cmd response address low + cmd response address high
2. Ring the door bell (i.e. set the door bell interrupt)
In response to door bell interrupt, the firmware will perform
@@ -1013,11 +1407,11 @@ mwifiex_pcie_send_cmd(struct mwifiex_adapter *adapter, struct sk_buff *skb)
*/
if (card->cmdrsp_buf) {
- cmdrsp_buf_pa = MWIFIEX_SKB_PACB(card->cmdrsp_buf);
+ MWIFIEX_SKB_PACB(card->cmdrsp_buf, &cmdrsp_buf_pa);
/* Write the lower 32bits of the cmdrsp buffer physical
address */
- if (mwifiex_write_reg(adapter, REG_CMDRSP_ADDR_LO,
- (u32)*cmdrsp_buf_pa)) {
+ if (mwifiex_write_reg(adapter, reg->cmdrsp_addr_lo,
+ (u32)cmdrsp_buf_pa)) {
dev_err(adapter->dev,
"Failed to write download cmd to boot code.\n");
ret = -1;
@@ -1025,8 +1419,8 @@ mwifiex_pcie_send_cmd(struct mwifiex_adapter *adapter, struct sk_buff *skb)
}
/* Write the upper 32bits of the cmdrsp buffer physical
address */
- if (mwifiex_write_reg(adapter, REG_CMDRSP_ADDR_HI,
- (u32)((u64)*cmdrsp_buf_pa >> 32))) {
+ if (mwifiex_write_reg(adapter, reg->cmdrsp_addr_hi,
+ (u32)((u64)cmdrsp_buf_pa >> 32))) {
dev_err(adapter->dev,
"Failed to write download cmd to boot code.\n");
ret = -1;
@@ -1034,27 +1428,29 @@ mwifiex_pcie_send_cmd(struct mwifiex_adapter *adapter, struct sk_buff *skb)
}
}
- cmd_buf_pa = MWIFIEX_SKB_PACB(card->cmd_buf);
- /* Write the lower 32bits of the physical address to REG_CMD_ADDR_LO */
- if (mwifiex_write_reg(adapter, REG_CMD_ADDR_LO, (u32)*cmd_buf_pa)) {
+ MWIFIEX_SKB_PACB(card->cmd_buf, &cmd_buf_pa);
+ /* Write the lower 32bits of the physical address to reg->cmd_addr_lo */
+ if (mwifiex_write_reg(adapter, reg->cmd_addr_lo,
+ (u32)cmd_buf_pa)) {
dev_err(adapter->dev,
"Failed to write download cmd to boot code.\n");
ret = -1;
goto done;
}
- /* Write the upper 32bits of the physical address to REG_CMD_ADDR_HI */
- if (mwifiex_write_reg(adapter, REG_CMD_ADDR_HI,
- (u32)((u64)*cmd_buf_pa >> 32))) {
+ /* Write the upper 32bits of the physical address to reg->cmd_addr_hi */
+ if (mwifiex_write_reg(adapter, reg->cmd_addr_hi,
+ (u32)((u64)cmd_buf_pa >> 32))) {
dev_err(adapter->dev,
"Failed to write download cmd to boot code.\n");
ret = -1;
goto done;
}
- /* Write the command length to REG_CMD_SIZE */
- if (mwifiex_write_reg(adapter, REG_CMD_SIZE, card->cmd_buf->len)) {
+ /* Write the command length to reg->cmd_size */
+ if (mwifiex_write_reg(adapter, reg->cmd_size,
+ card->cmd_buf->len)) {
dev_err(adapter->dev,
- "Failed to write cmd len to REG_CMD_SIZE\n");
+ "Failed to write cmd len to reg->cmd_size\n");
ret = -1;
goto done;
}
@@ -1081,18 +1477,30 @@ done:
static int mwifiex_pcie_process_cmd_complete(struct mwifiex_adapter *adapter)
{
struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
struct sk_buff *skb = card->cmdrsp_buf;
int count = 0;
+ u16 rx_len;
+ __le16 pkt_len;
+ dma_addr_t buf_pa;
dev_dbg(adapter->dev, "info: Rx CMD Response\n");
+ MWIFIEX_SKB_PACB(skb, &buf_pa);
+ pci_unmap_single(card->dev, buf_pa, MWIFIEX_UPLD_SIZE,
+ PCI_DMA_FROMDEVICE);
+
+ pkt_len = *((__le16 *)skb->data);
+ rx_len = le16_to_cpu(pkt_len);
+ skb_trim(skb, rx_len);
+ skb_pull(skb, INTF_HEADER_LEN);
+
if (!adapter->curr_cmd) {
- skb_pull(skb, INTF_HEADER_LEN);
if (adapter->ps_state == PS_STATE_SLEEP_CFM) {
mwifiex_process_sleep_confirm_resp(adapter, skb->data,
skb->len);
- while (mwifiex_pcie_ok_to_access_hw(adapter) &&
- (count++ < 10))
+ while (reg->sleep_cookie && (count++ < 10) &&
+ mwifiex_pcie_ok_to_access_hw(adapter))
usleep_range(50, 60);
} else {
dev_err(adapter->dev,
@@ -1100,9 +1508,12 @@ static int mwifiex_pcie_process_cmd_complete(struct mwifiex_adapter *adapter)
}
memcpy(adapter->upld_buf, skb->data,
min_t(u32, MWIFIEX_SIZE_OF_CMD_BUFFER, skb->len));
- skb_push(skb, INTF_HEADER_LEN);
+ if (mwifiex_map_pci_memory(adapter, skb, MWIFIEX_UPLD_SIZE,
+ PCI_DMA_FROMDEVICE))
+ return -1;
+
+ MWIFIEX_SKB_PACB(skb, &buf_pa);
} else if (mwifiex_pcie_ok_to_access_hw(adapter)) {
- skb_pull(skb, INTF_HEADER_LEN);
adapter->curr_cmd->resp_skb = skb;
adapter->cmd_resp_received = true;
/* Take the pointer and set it to CMD node and will
@@ -1112,14 +1523,14 @@ static int mwifiex_pcie_process_cmd_complete(struct mwifiex_adapter *adapter)
/* Clear the cmd-rsp buffer address in scratch registers. This
will prevent firmware from writing to the same response
buffer again. */
- if (mwifiex_write_reg(adapter, REG_CMDRSP_ADDR_LO, 0)) {
+ if (mwifiex_write_reg(adapter, reg->cmdrsp_addr_lo, 0)) {
dev_err(adapter->dev,
"cmd_done: failed to clear cmd_rsp_addr_lo\n");
return -1;
}
/* Write the upper 32bits of the cmdrsp buffer physical
address */
- if (mwifiex_write_reg(adapter, REG_CMDRSP_ADDR_HI, 0)) {
+ if (mwifiex_write_reg(adapter, reg->cmdrsp_addr_hi, 0)) {
dev_err(adapter->dev,
"cmd_done: failed to clear cmd_rsp_addr_hi\n");
return -1;
@@ -1136,10 +1547,23 @@ static int mwifiex_pcie_cmdrsp_complete(struct mwifiex_adapter *adapter,
struct sk_buff *skb)
{
struct pcie_service_card *card = adapter->card;
+ dma_addr_t buf_pa;
+ struct sk_buff *skb_tmp;
if (skb) {
card->cmdrsp_buf = skb;
skb_push(card->cmdrsp_buf, INTF_HEADER_LEN);
+ if (mwifiex_map_pci_memory(adapter, skb, MWIFIEX_UPLD_SIZE,
+ PCI_DMA_FROMDEVICE))
+ return -1;
+ }
+
+ skb_tmp = card->cmd_buf;
+ if (skb_tmp) {
+ MWIFIEX_SKB_PACB(skb_tmp, &buf_pa);
+ pci_unmap_single(card->dev, buf_pa, MWIFIEX_UPLD_SIZE,
+ PCI_DMA_FROMDEVICE);
+ card->cmd_buf = NULL;
}
return 0;
@@ -1151,8 +1575,14 @@ static int mwifiex_pcie_cmdrsp_complete(struct mwifiex_adapter *adapter,
static int mwifiex_pcie_process_event_ready(struct mwifiex_adapter *adapter)
{
struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
u32 rdptr = card->evtbd_rdptr & MWIFIEX_EVTBD_MASK;
u32 wrptr, event;
+ dma_addr_t buf_pa;
+ struct mwifiex_evt_buf_desc *desc;
+
+ if (!mwifiex_pcie_ok_to_access_hw(adapter))
+ mwifiex_pm_wakeup_card(adapter);
if (adapter->event_received) {
dev_dbg(adapter->dev, "info: Event being processed, "
@@ -1166,9 +1596,9 @@ static int mwifiex_pcie_process_event_ready(struct mwifiex_adapter *adapter)
}
/* Read the event ring write pointer set by firmware */
- if (mwifiex_read_reg(adapter, REG_EVTBD_WRPTR, &wrptr)) {
+ if (mwifiex_read_reg(adapter, reg->evt_wrptr, &wrptr)) {
dev_err(adapter->dev,
- "EventReady: failed to read REG_EVTBD_WRPTR\n");
+ "EventReady: failed to read reg->evt_wrptr\n");
return -1;
}
@@ -1176,20 +1606,23 @@ static int mwifiex_pcie_process_event_ready(struct mwifiex_adapter *adapter)
card->evtbd_rdptr, wrptr);
if (((wrptr & MWIFIEX_EVTBD_MASK) != (card->evtbd_rdptr
& MWIFIEX_EVTBD_MASK)) ||
- ((wrptr & MWIFIEX_BD_FLAG_ROLLOVER_IND) ==
- (card->evtbd_rdptr & MWIFIEX_BD_FLAG_ROLLOVER_IND))) {
+ ((wrptr & reg->evt_rollover_ind) ==
+ (card->evtbd_rdptr & reg->evt_rollover_ind))) {
struct sk_buff *skb_cmd;
__le16 data_len = 0;
u16 evt_len;
dev_dbg(adapter->dev, "info: Read Index: %d\n", rdptr);
skb_cmd = card->evt_buf_list[rdptr];
+ MWIFIEX_SKB_PACB(skb_cmd, &buf_pa);
+ pci_unmap_single(card->dev, buf_pa, MAX_EVENT_SIZE,
+ PCI_DMA_FROMDEVICE);
+
/* Take the pointer and set it to event pointer in adapter
and will return back after event handling callback */
card->evt_buf_list[rdptr] = NULL;
- card->evtbd_ring[rdptr]->paddr = 0;
- card->evtbd_ring[rdptr]->len = 0;
- card->evtbd_ring[rdptr]->flags = 0;
+ desc = card->evtbd_ring[rdptr];
+ memset(desc, 0, sizeof(*desc));
event = *(u32 *) &skb_cmd->data[INTF_HEADER_LEN];
adapter->event_cause = event;
@@ -1225,10 +1658,12 @@ static int mwifiex_pcie_event_complete(struct mwifiex_adapter *adapter,
struct sk_buff *skb)
{
struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
int ret = 0;
u32 rdptr = card->evtbd_rdptr & MWIFIEX_EVTBD_MASK;
u32 wrptr;
- phys_addr_t *buf_pa;
+ dma_addr_t buf_pa;
+ struct mwifiex_evt_buf_desc *desc;
if (!skb)
return 0;
@@ -1240,19 +1675,25 @@ static int mwifiex_pcie_event_complete(struct mwifiex_adapter *adapter,
}
/* Read the event ring write pointer set by firmware */
- if (mwifiex_read_reg(adapter, REG_EVTBD_WRPTR, &wrptr)) {
+ if (mwifiex_read_reg(adapter, reg->evt_wrptr, &wrptr)) {
dev_err(adapter->dev,
- "event_complete: failed to read REG_EVTBD_WRPTR\n");
+ "event_complete: failed to read reg->evt_wrptr\n");
return -1;
}
if (!card->evt_buf_list[rdptr]) {
skb_push(skb, INTF_HEADER_LEN);
+ if (mwifiex_map_pci_memory(adapter, skb,
+ MAX_EVENT_SIZE,
+ PCI_DMA_FROMDEVICE))
+ return -1;
+ MWIFIEX_SKB_PACB(skb, &buf_pa);
card->evt_buf_list[rdptr] = skb;
- buf_pa = MWIFIEX_SKB_PACB(skb);
- card->evtbd_ring[rdptr]->paddr = *buf_pa;
- card->evtbd_ring[rdptr]->len = (u16)skb->len;
- card->evtbd_ring[rdptr]->flags = 0;
+ MWIFIEX_SKB_PACB(skb, &buf_pa);
+ desc = card->evtbd_ring[rdptr];
+ desc->paddr = buf_pa;
+ desc->len = (u16)skb->len;
+ desc->flags = 0;
skb = NULL;
} else {
dev_dbg(adapter->dev,
@@ -1262,17 +1703,18 @@ static int mwifiex_pcie_event_complete(struct mwifiex_adapter *adapter,
if ((++card->evtbd_rdptr & MWIFIEX_EVTBD_MASK) == MWIFIEX_MAX_EVT_BD) {
card->evtbd_rdptr = ((card->evtbd_rdptr &
- MWIFIEX_BD_FLAG_ROLLOVER_IND) ^
- MWIFIEX_BD_FLAG_ROLLOVER_IND);
+ reg->evt_rollover_ind) ^
+ reg->evt_rollover_ind);
}
dev_dbg(adapter->dev, "info: Updated <Rd: 0x%x, Wr: 0x%x>",
card->evtbd_rdptr, wrptr);
- /* Write the event ring read pointer in to REG_EVTBD_RDPTR */
- if (mwifiex_write_reg(adapter, REG_EVTBD_RDPTR, card->evtbd_rdptr)) {
+ /* Write the event ring read pointer in to reg->evt_rdptr */
+ if (mwifiex_write_reg(adapter, reg->evt_rdptr,
+ card->evtbd_rdptr)) {
dev_err(adapter->dev,
- "event_complete: failed to read REG_EVTBD_RDPTR\n");
+ "event_complete: failed to read reg->evt_rdptr\n");
return -1;
}
@@ -1299,11 +1741,9 @@ static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
struct sk_buff *skb;
u32 txlen, tx_blocks = 0, tries, len;
u32 block_retry_cnt = 0;
-
- if (!adapter) {
- pr_err("adapter structure is not valid\n");
- return -1;
- }
+ dma_addr_t buf_pa;
+ struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
if (!firmware || !firmware_len) {
dev_err(adapter->dev,
@@ -1325,7 +1765,6 @@ static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
ret = -ENOMEM;
goto done;
}
- mwifiex_update_sk_buff_pa(skb);
/* Perform firmware data transfer */
do {
@@ -1336,7 +1775,7 @@ static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
break;
for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
- ret = mwifiex_read_reg(adapter, PCIE_SCRATCH_2_REG,
+ ret = mwifiex_read_reg(adapter, reg->cmd_size,
&len);
if (ret) {
dev_warn(adapter->dev,
@@ -1382,16 +1821,15 @@ static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
dev_dbg(adapter->dev, ".");
- tx_blocks = (txlen +
- MWIFIEX_PCIE_BLOCK_SIZE_FW_DNLD - 1) /
- MWIFIEX_PCIE_BLOCK_SIZE_FW_DNLD;
+ tx_blocks = (txlen + card->pcie.blksz_fw_dl - 1) /
+ card->pcie.blksz_fw_dl;
/* Copy payload to buffer */
memmove(skb->data, &firmware[offset], txlen);
}
skb_put(skb, MWIFIEX_UPLD_SIZE - skb->len);
- skb_trim(skb, tx_blocks * MWIFIEX_PCIE_BLOCK_SIZE_FW_DNLD);
+ skb_trim(skb, tx_blocks * card->pcie.blksz_fw_dl);
/* Send the boot command to device */
if (mwifiex_pcie_send_boot_cmd(adapter, skb)) {
@@ -1400,6 +1838,9 @@ static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
ret = -1;
goto done;
}
+
+ MWIFIEX_SKB_PACB(skb, &buf_pa);
+
/* Wait for the command done interrupt */
do {
if (mwifiex_read_reg(adapter, PCIE_CPU_INT_STATUS,
@@ -1407,11 +1848,17 @@ static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
dev_err(adapter->dev, "%s: Failed to read "
"interrupt status during fw dnld.\n",
__func__);
+ pci_unmap_single(card->dev, buf_pa, skb->len,
+ PCI_DMA_TODEVICE);
ret = -1;
goto done;
}
} while ((ireg_intr & CPU_INTR_DOOR_BELL) ==
CPU_INTR_DOOR_BELL);
+
+ pci_unmap_single(card->dev, buf_pa, skb->len,
+ PCI_DMA_TODEVICE);
+
offset += txlen;
} while (true);
@@ -1435,6 +1882,8 @@ mwifiex_check_fw_status(struct mwifiex_adapter *adapter, u32 poll_num)
{
int ret = 0;
u32 firmware_stat, winner_status;
+ struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
u32 tries;
/* Mask spurios interrupts */
@@ -1445,7 +1894,8 @@ mwifiex_check_fw_status(struct mwifiex_adapter *adapter, u32 poll_num)
}
dev_dbg(adapter->dev, "Setting driver ready signature\n");
- if (mwifiex_write_reg(adapter, REG_DRV_READY, FIRMWARE_READY_PCIE)) {
+ if (mwifiex_write_reg(adapter, reg->drv_rdy,
+ FIRMWARE_READY_PCIE)) {
dev_err(adapter->dev,
"Failed to write driver ready signature\n");
return -1;
@@ -1453,7 +1903,7 @@ mwifiex_check_fw_status(struct mwifiex_adapter *adapter, u32 poll_num)
/* Wait for firmware initialization event */
for (tries = 0; tries < poll_num; tries++) {
- if (mwifiex_read_reg(adapter, PCIE_SCRATCH_3_REG,
+ if (mwifiex_read_reg(adapter, reg->fw_status,
&firmware_stat))
ret = -1;
else
@@ -1470,7 +1920,7 @@ mwifiex_check_fw_status(struct mwifiex_adapter *adapter, u32 poll_num)
}
if (ret) {
- if (mwifiex_read_reg(adapter, PCIE_SCRATCH_3_REG,
+ if (mwifiex_read_reg(adapter, reg->fw_status,
&winner_status))
ret = -1;
else if (!winner_status) {
@@ -1594,39 +2044,40 @@ exit:
static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
{
int ret;
- u32 pcie_ireg = 0;
+ u32 pcie_ireg;
unsigned long flags;
spin_lock_irqsave(&adapter->int_lock, flags);
/* Clear out unused interrupts */
- adapter->int_status &= HOST_INTR_MASK;
+ pcie_ireg = adapter->int_status;
+ adapter->int_status = 0;
spin_unlock_irqrestore(&adapter->int_lock, flags);
- while (adapter->int_status & HOST_INTR_MASK) {
- if (adapter->int_status & HOST_INTR_DNLD_DONE) {
- adapter->int_status &= ~HOST_INTR_DNLD_DONE;
- if (adapter->data_sent) {
- dev_dbg(adapter->dev, "info: DATA sent intr\n");
- adapter->data_sent = false;
- }
+ while (pcie_ireg & HOST_INTR_MASK) {
+ if (pcie_ireg & HOST_INTR_DNLD_DONE) {
+ pcie_ireg &= ~HOST_INTR_DNLD_DONE;
+ dev_dbg(adapter->dev, "info: TX DNLD Done\n");
+ ret = mwifiex_pcie_send_data_complete(adapter);
+ if (ret)
+ return ret;
}
- if (adapter->int_status & HOST_INTR_UPLD_RDY) {
- adapter->int_status &= ~HOST_INTR_UPLD_RDY;
+ if (pcie_ireg & HOST_INTR_UPLD_RDY) {
+ pcie_ireg &= ~HOST_INTR_UPLD_RDY;
dev_dbg(adapter->dev, "info: Rx DATA\n");
ret = mwifiex_pcie_process_recv_data(adapter);
if (ret)
return ret;
}
- if (adapter->int_status & HOST_INTR_EVENT_RDY) {
- adapter->int_status &= ~HOST_INTR_EVENT_RDY;
+ if (pcie_ireg & HOST_INTR_EVENT_RDY) {
+ pcie_ireg &= ~HOST_INTR_EVENT_RDY;
dev_dbg(adapter->dev, "info: Rx EVENT\n");
ret = mwifiex_pcie_process_event_ready(adapter);
if (ret)
return ret;
}
- if (adapter->int_status & HOST_INTR_CMD_DONE) {
- adapter->int_status &= ~HOST_INTR_CMD_DONE;
+ if (pcie_ireg & HOST_INTR_CMD_DONE) {
+ pcie_ireg &= ~HOST_INTR_CMD_DONE;
if (adapter->cmd_sent) {
dev_dbg(adapter->dev,
"info: CMD sent Interrupt\n");
@@ -1654,8 +2105,6 @@ static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
"Write register failed\n");
return -1;
}
- adapter->int_status |= pcie_ireg;
- adapter->int_status &= HOST_INTR_MASK;
}
}
@@ -1687,7 +2136,7 @@ static int mwifiex_pcie_host_to_card(struct mwifiex_adapter *adapter, u8 type,
}
if (type == MWIFIEX_TYPE_DATA)
- return mwifiex_pcie_send_data(adapter, skb);
+ return mwifiex_pcie_send_data(adapter, skb, tx_param);
else if (type == MWIFIEX_TYPE_CMD)
return mwifiex_pcie_send_cmd(adapter, skb);
@@ -1709,6 +2158,7 @@ static int mwifiex_pcie_init(struct mwifiex_adapter *adapter)
struct pcie_service_card *card = adapter->card;
int ret;
struct pci_dev *pdev = card->dev;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
pci_set_drvdata(pdev, card);
@@ -1739,6 +2189,7 @@ static int mwifiex_pcie_init(struct mwifiex_adapter *adapter)
card->pci_mmap = pci_iomap(pdev, 0, 0);
if (!card->pci_mmap) {
dev_err(adapter->dev, "iomap(0) error\n");
+ ret = -EIO;
goto err_iomap0;
}
ret = pci_request_region(pdev, 2, DRV_NAME);
@@ -1749,6 +2200,7 @@ static int mwifiex_pcie_init(struct mwifiex_adapter *adapter)
card->pci_mmap1 = pci_iomap(pdev, 2, 0);
if (!card->pci_mmap1) {
dev_err(adapter->dev, "iomap(2) error\n");
+ ret = -EIO;
goto err_iomap2;
}
@@ -1769,10 +2221,13 @@ static int mwifiex_pcie_init(struct mwifiex_adapter *adapter)
ret = mwifiex_pcie_alloc_cmdrsp_buf(adapter);
if (ret)
goto err_alloc_cmdbuf;
- ret = mwifiex_pcie_alloc_sleep_cookie_buf(adapter);
- if (ret)
- goto err_alloc_cookie;
-
+ if (reg->sleep_cookie) {
+ ret = mwifiex_pcie_alloc_sleep_cookie_buf(adapter);
+ if (ret)
+ goto err_alloc_cookie;
+ } else {
+ card->sleep_cookie_vbase = NULL;
+ }
return ret;
err_alloc_cookie:
@@ -1813,17 +2268,11 @@ static void mwifiex_pcie_cleanup(struct mwifiex_adapter *adapter)
{
struct pcie_service_card *card = adapter->card;
struct pci_dev *pdev = card->dev;
+ const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
- mwifiex_pcie_delete_sleep_cookie_buf(adapter);
- mwifiex_pcie_delete_cmdrsp_buf(adapter);
- mwifiex_pcie_delete_evtbd_ring(adapter);
- mwifiex_pcie_delete_rxbd_ring(adapter);
- mwifiex_pcie_delete_txbd_ring(adapter);
- card->cmdrsp_buf = NULL;
-
- dev_dbg(adapter->dev, "Clearing driver ready signature\n");
if (user_rmmod) {
- if (mwifiex_write_reg(adapter, REG_DRV_READY, 0x00000000))
+ dev_dbg(adapter->dev, "Clearing driver ready signature\n");
+ if (mwifiex_write_reg(adapter, reg->drv_rdy, 0x00000000))
dev_err(adapter->dev,
"Failed to write driver not-ready signature\n");
}
@@ -1861,7 +2310,7 @@ static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
}
adapter->dev = &pdev->dev;
- strcpy(adapter->fw_name, PCIE8766_DEFAULT_FW_NAME);
+ strcpy(adapter->fw_name, card->pcie.firmware);
return 0;
}
@@ -1875,10 +2324,21 @@ static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
static void mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
{
struct pcie_service_card *card = adapter->card;
+ const struct mwifiex_pcie_card_reg *reg;
if (card) {
dev_dbg(adapter->dev, "%s(): calling free_irq()\n", __func__);
free_irq(card->dev->irq, card->dev);
+
+ reg = card->pcie.reg;
+ if (reg->sleep_cookie)
+ mwifiex_pcie_delete_sleep_cookie_buf(adapter);
+
+ mwifiex_pcie_delete_cmdrsp_buf(adapter);
+ mwifiex_pcie_delete_evtbd_ring(adapter);
+ mwifiex_pcie_delete_rxbd_ring(adapter);
+ mwifiex_pcie_delete_txbd_ring(adapter);
+ card->cmdrsp_buf = NULL;
}
}
@@ -1900,6 +2360,8 @@ static struct mwifiex_if_ops pcie_ops = {
.event_complete = mwifiex_pcie_event_complete,
.update_mp_end_port = NULL,
.cleanup_mpa_buf = NULL,
+ .init_fw_port = mwifiex_pcie_init_fw_port,
+ .clean_pcie_ring = mwifiex_clean_pcie_ring_buf,
};
/*
@@ -1912,7 +2374,7 @@ static int mwifiex_pcie_init_module(void)
{
int ret;
- pr_debug("Marvell 8766 PCIe Driver\n");
+ pr_debug("Marvell PCIe Driver\n");
sema_init(&add_remove_card_sem, 1);
@@ -1955,4 +2417,5 @@ MODULE_AUTHOR("Marvell International Ltd.");
MODULE_DESCRIPTION("Marvell WiFi-Ex PCI-Express Driver version " PCIE_VERSION);
MODULE_VERSION(PCIE_VERSION);
MODULE_LICENSE("GPL v2");
-MODULE_FIRMWARE("mrvl/pcie8766_uapsta.bin");
+MODULE_FIRMWARE(PCIE8766_DEFAULT_FW_NAME);
+MODULE_FIRMWARE(PCIE8897_DEFAULT_FW_NAME);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.