mwifiex: store card specific data in PCI device table entry

This patch adds support for storing PCIe device specific data
into driver_data structure of pci_device_id. When a device with
known device_id is probed, we use this driver_data to populate
card specific structres in driver.
This enables to remove device specific defines for scratch
registers, firmware name, FW download block size, etc. from
source code.

This will make addition of support for new chipsets a lot easier.
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/mwifiex/pcie.h

@@ -75,27 +75,6 @@
 #define MWIFIEX_BD_FLAG_ROLLOVER_IND			BIT(7)
 #define MWIFIEX_BD_FLAG_FIRST_DESC			BIT(0)
 #define MWIFIEX_BD_FLAG_LAST_DESC			BIT(1)
-#define REG_CMD_ADDR_LO					PCIE_SCRATCH_0_REG
-#define REG_CMD_ADDR_HI					PCIE_SCRATCH_1_REG
-#define REG_CMD_SIZE					PCIE_SCRATCH_2_REG
-
-#define REG_CMDRSP_ADDR_LO				PCIE_SCRATCH_4_REG
-#define REG_CMDRSP_ADDR_HI				PCIE_SCRATCH_5_REG
-
-/* TX buffer description read pointer */
-#define REG_TXBD_RDPTR					PCIE_SCRATCH_6_REG
-/* TX buffer description write pointer */
-#define REG_TXBD_WRPTR					PCIE_SCRATCH_7_REG
-/* RX buffer description read pointer */
-#define REG_RXBD_RDPTR					PCIE_SCRATCH_8_REG
-/* RX buffer description write pointer */
-#define REG_RXBD_WRPTR					PCIE_SCRATCH_9_REG
-/* Event buffer description read pointer */
-#define REG_EVTBD_RDPTR					PCIE_SCRATCH_10_REG
-/* Event buffer description write pointer */
-#define REG_EVTBD_WRPTR					PCIE_SCRATCH_11_REG
-/* Driver ready signature write pointer */
-#define REG_DRV_READY					PCIE_SCRATCH_12_REG
 
 /* Max retry number of command write */
 #define MAX_WRITE_IOMEM_RETRY				2
@@ -104,6 +83,78 @@
 /* FW awake cookie after FW ready */
 #define FW_AWAKE_COOKIE						(0xAA55AA55)
 
+struct mwifiex_pcie_card_reg {
+	u16 cmd_addr_lo;
+	u16 cmd_addr_hi;
+	u16 fw_status;
+	u16 cmd_size;
+	u16 cmdrsp_addr_lo;
+	u16 cmdrsp_addr_hi;
+	u16 tx_rdptr;
+	u16 tx_wrptr;
+	u16 rx_rdptr;
+	u16 rx_wrptr;
+	u16 evt_rdptr;
+	u16 evt_wrptr;
+	u16 drv_rdy;
+	u16 tx_start_ptr;
+	u32 tx_mask;
+	u32 tx_wrap_mask;
+	u32 rx_mask;
+	u32 rx_wrap_mask;
+	u32 tx_rollover_ind;
+	u32 rx_rollover_ind;
+	u32 evt_rollover_ind;
+	u8 ring_flag_sop;
+	u8 ring_flag_eop;
+	u8 ring_flag_xs_sop;
+	u8 ring_flag_xs_eop;
+	u32 ring_tx_start_ptr;
+	u8 pfu_enabled;
+};
+
+static const struct mwifiex_pcie_card_reg mwifiex_reg_8766 = {
+	.cmd_addr_lo = PCIE_SCRATCH_0_REG,
+	.cmd_addr_hi = PCIE_SCRATCH_1_REG,
+	.cmd_size = PCIE_SCRATCH_2_REG,
+	.fw_status = PCIE_SCRATCH_3_REG,
+	.cmdrsp_addr_lo = PCIE_SCRATCH_4_REG,
+	.cmdrsp_addr_hi = PCIE_SCRATCH_5_REG,
+	.tx_rdptr = PCIE_SCRATCH_6_REG,
+	.tx_wrptr = PCIE_SCRATCH_7_REG,
+	.rx_rdptr = PCIE_SCRATCH_8_REG,
+	.rx_wrptr = PCIE_SCRATCH_9_REG,
+	.evt_rdptr = PCIE_SCRATCH_10_REG,
+	.evt_wrptr = PCIE_SCRATCH_11_REG,
+	.drv_rdy = PCIE_SCRATCH_12_REG,
+	.tx_start_ptr = 0,
+	.tx_mask = MWIFIEX_TXBD_MASK,
+	.tx_wrap_mask = 0,
+	.rx_mask = MWIFIEX_RXBD_MASK,
+	.rx_wrap_mask = 0,
+	.tx_rollover_ind = MWIFIEX_BD_FLAG_ROLLOVER_IND,
+	.rx_rollover_ind = MWIFIEX_BD_FLAG_ROLLOVER_IND,
+	.evt_rollover_ind = MWIFIEX_BD_FLAG_ROLLOVER_IND,
+	.ring_flag_sop = 0,
+	.ring_flag_eop = 0,
+	.ring_flag_xs_sop = 0,
+	.ring_flag_xs_eop = 0,
+	.ring_tx_start_ptr = 0,
+	.pfu_enabled = 0,
+};
+
+struct mwifiex_pcie_device {
+	const char *firmware;
+	const struct mwifiex_pcie_card_reg *reg;
+	u16 blksz_fw_dl;
+};
+
+static const struct mwifiex_pcie_device mwifiex_pcie8766 = {
+	.firmware       = PCIE8766_DEFAULT_FW_NAME,
+	.reg            = &mwifiex_reg_8766,
+	.blksz_fw_dl = MWIFIEX_PCIE_BLOCK_SIZE_FW_DNLD,
+};
+
 struct mwifiex_pcie_buf_desc {
 	u64 paddr;
 	u16 len;
@@ -113,6 +164,7 @@ struct mwifiex_pcie_buf_desc {
 struct pcie_service_card {
 	struct pci_dev *dev;
 	struct mwifiex_adapter *adapter;
+	struct mwifiex_pcie_device pcie;
 
 	u8 txbd_flush;
 	u32 txbd_wrptr;
@@ -150,10 +202,11 @@ struct pcie_service_card {
 static inline int
 mwifiex_pcie_txbd_empty(struct pcie_service_card *card, u32 rdptr)
 {
-	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)))
+	const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
+
+	if (((card->txbd_wrptr & reg->tx_mask) == (rdptr & reg->tx_mask)) &&
+	    ((card->txbd_wrptr & reg->tx_rollover_ind) !=
+			(rdptr & reg->tx_rollover_ind)))
 		return 1;
 
 	return 0;
@@ -162,10 +215,12 @@ mwifiex_pcie_txbd_empty(struct pcie_service_card *card, u32 rdptr)
 static inline int
 mwifiex_pcie_txbd_not_full(struct pcie_service_card *card)
 {
-	if (((card->txbd_wrptr & MWIFIEX_TXBD_MASK) !=
-	     (card->txbd_rdptr & MWIFIEX_TXBD_MASK)) ||
-	    ((card->txbd_wrptr & MWIFIEX_BD_FLAG_ROLLOVER_IND) !=
-	     (card->txbd_rdptr & MWIFIEX_BD_FLAG_ROLLOVER_IND)))
+	const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
+
+	if (((card->txbd_wrptr & reg->tx_mask) !=
+	     (card->txbd_rdptr & reg->tx_mask)) ||
+	    ((card->txbd_wrptr & reg->tx_rollover_ind) !=
+	     (card->txbd_rdptr & reg->tx_rollover_ind)))
 		return 1;
 
 	return 0;