Initial import

1 files changed, 339 insertions, 0 deletions

diff --git a/drivers/net/wireless/mwifiex/pcie.h b/drivers/net/wireless/mwifiex/pcie.h
new file mode 100644
index 000000000..d97ff27f6
--- /dev/null
+++ b/drivers/net/wireless/mwifiex/pcie.h
@@ -0,0 +1,339 @@
+/* @file mwifiex_pcie.h
+ *
+ * @brief This file contains definitions for PCI-E interface.
+ * driver.
+ *
+ * Copyright (C) 2011-2014, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License").  You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#ifndef	_MWIFIEX_PCIE_H
+#define	_MWIFIEX_PCIE_H
+
+#include    <linux/pci.h>
+#include    <linux/pcieport_if.h>
+#include    <linux/interrupt.h>
+
+#include    "main.h"
+
+#define PCIE8766_DEFAULT_FW_NAME "/*(DEBLOBBED)*/"
+#define PCIE8897_DEFAULT_FW_NAME "/*(DEBLOBBED)*/"
+
+#define PCIE_VENDOR_ID_MARVELL              (0x11ab)
+#define PCIE_DEVICE_ID_MARVELL_88W8766P		(0x2b30)
+#define PCIE_DEVICE_ID_MARVELL_88W8897		(0x2b38)
+
+/* Constants for Buffer Descriptor (BD) rings */
+#define MWIFIEX_MAX_TXRX_BD			0x20
+#define MWIFIEX_TXBD_MASK			0x3F
+#define MWIFIEX_RXBD_MASK			0x3F
+
+#define MWIFIEX_MAX_EVT_BD			0x08
+#define MWIFIEX_EVTBD_MASK			0x0f
+
+/* PCIE INTERNAL REGISTERS */
+#define PCIE_SCRATCH_0_REG				0xC10
+#define PCIE_SCRATCH_1_REG				0xC14
+#define PCIE_CPU_INT_EVENT				0xC18
+#define PCIE_CPU_INT_STATUS				0xC1C
+#define PCIE_HOST_INT_STATUS				0xC30
+#define PCIE_HOST_INT_MASK				0xC34
+#define PCIE_HOST_INT_STATUS_MASK			0xC3C
+#define PCIE_SCRATCH_2_REG				0xC40
+#define PCIE_SCRATCH_3_REG				0xC44
+#define PCIE_SCRATCH_4_REG				0xCD0
+#define PCIE_SCRATCH_5_REG				0xCD4
+#define PCIE_SCRATCH_6_REG				0xCD8
+#define PCIE_SCRATCH_7_REG				0xCDC
+#define PCIE_SCRATCH_8_REG				0xCE0
+#define PCIE_SCRATCH_9_REG				0xCE4
+#define PCIE_SCRATCH_10_REG				0xCE8
+#define PCIE_SCRATCH_11_REG				0xCEC
+#define PCIE_SCRATCH_12_REG				0xCF0
+#define PCIE_RD_DATA_PTR_Q0_Q1                          0xC08C
+#define PCIE_WR_DATA_PTR_Q0_Q1                          0xC05C
+
+#define CPU_INTR_DNLD_RDY				BIT(0)
+#define CPU_INTR_DOOR_BELL				BIT(1)
+#define CPU_INTR_SLEEP_CFM_DONE			BIT(2)
+#define CPU_INTR_RESET					BIT(3)
+#define CPU_INTR_EVENT_DONE				BIT(5)
+
+#define HOST_INTR_DNLD_DONE				BIT(0)
+#define HOST_INTR_UPLD_RDY				BIT(1)
+#define HOST_INTR_CMD_DONE				BIT(2)
+#define HOST_INTR_EVENT_RDY				BIT(3)
+#define HOST_INTR_MASK					(HOST_INTR_DNLD_DONE | \
+							 HOST_INTR_UPLD_RDY  | \
+							 HOST_INTR_CMD_DONE  | \
+							 HOST_INTR_EVENT_RDY)
+
+#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 MWIFIEX_BD_FLAG_SOP				BIT(0)
+#define MWIFIEX_BD_FLAG_EOP				BIT(1)
+#define MWIFIEX_BD_FLAG_XS_SOP				BIT(2)
+#define MWIFIEX_BD_FLAG_XS_EOP				BIT(3)
+#define MWIFIEX_BD_FLAG_EVT_ROLLOVER_IND		BIT(7)
+#define MWIFIEX_BD_FLAG_RX_ROLLOVER_IND			BIT(10)
+#define MWIFIEX_BD_FLAG_TX_START_PTR			BIT(16)
+#define MWIFIEX_BD_FLAG_TX_ROLLOVER_IND			BIT(26)
+
+/* Max retry number of command write */
+#define MAX_WRITE_IOMEM_RETRY				2
+/* Define PCIE block size for firmware download */
+#define MWIFIEX_PCIE_BLOCK_SIZE_FW_DNLD		256
+/* FW awake cookie after FW ready */
+#define FW_AWAKE_COOKIE						(0xAA55AA55)
+#define MWIFIEX_DEF_SLEEP_COOKIE			0xBEEFBEEF
+#define MWIFIEX_MAX_DELAY_COUNT				5
+
+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;
+	u8 sleep_cookie;
+	u16 fw_dump_ctrl;
+	u16 fw_dump_start;
+	u16 fw_dump_end;
+};
+
+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,
+	.sleep_cookie = 1,
+};
+
+static const struct mwifiex_pcie_card_reg mwifiex_reg_8897 = {
+	.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_RD_DATA_PTR_Q0_Q1,
+	.tx_wrptr = PCIE_WR_DATA_PTR_Q0_Q1,
+	.rx_rdptr = PCIE_WR_DATA_PTR_Q0_Q1,
+	.rx_wrptr = PCIE_RD_DATA_PTR_Q0_Q1,
+	.evt_rdptr = PCIE_SCRATCH_10_REG,
+	.evt_wrptr = PCIE_SCRATCH_11_REG,
+	.drv_rdy = PCIE_SCRATCH_12_REG,
+	.tx_start_ptr = 16,
+	.tx_mask = 0x03FF0000,
+	.tx_wrap_mask = 0x07FF0000,
+	.rx_mask = 0x000003FF,
+	.rx_wrap_mask = 0x000007FF,
+	.tx_rollover_ind = MWIFIEX_BD_FLAG_TX_ROLLOVER_IND,
+	.rx_rollover_ind = MWIFIEX_BD_FLAG_RX_ROLLOVER_IND,
+	.evt_rollover_ind = MWIFIEX_BD_FLAG_EVT_ROLLOVER_IND,
+	.ring_flag_sop = MWIFIEX_BD_FLAG_SOP,
+	.ring_flag_eop = MWIFIEX_BD_FLAG_EOP,
+	.ring_flag_xs_sop = MWIFIEX_BD_FLAG_XS_SOP,
+	.ring_flag_xs_eop = MWIFIEX_BD_FLAG_XS_EOP,
+	.ring_tx_start_ptr = MWIFIEX_BD_FLAG_TX_START_PTR,
+	.pfu_enabled = 1,
+	.sleep_cookie = 0,
+	.fw_dump_ctrl = 0xcf4,
+	.fw_dump_start = 0xcf8,
+	.fw_dump_end = 0xcff
+};
+
+struct mwifiex_pcie_device {
+	const char *firmware;
+	const struct mwifiex_pcie_card_reg *reg;
+	u16 blksz_fw_dl;
+	u16 tx_buf_size;
+	bool can_dump_fw;
+	bool can_ext_scan;
+};
+
+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,
+	.tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K,
+	.can_dump_fw = false,
+	.can_ext_scan = true,
+};
+
+static const struct mwifiex_pcie_device mwifiex_pcie8897 = {
+	.firmware       = PCIE8897_DEFAULT_FW_NAME,
+	.reg            = &mwifiex_reg_8897,
+	.blksz_fw_dl = MWIFIEX_PCIE_BLOCK_SIZE_FW_DNLD,
+	.tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K,
+	.can_dump_fw = true,
+	.can_ext_scan = true,
+};
+
+struct mwifiex_evt_buf_desc {
+	u64 paddr;
+	u16 len;
+	u16 flags;
+} __packed;
+
+struct mwifiex_pcie_buf_desc {
+	u64 paddr;
+	u16 len;
+	u16 flags;
+} __packed;
+
+struct mwifiex_pfu_buf_desc {
+	u16 flags;
+	u16 offset;
+	u16 frag_len;
+	u16 len;
+	u64 paddr;
+	u32 reserved;
+} __packed;
+
+struct pcie_service_card {
+	struct pci_dev *dev;
+	struct mwifiex_adapter *adapter;
+	struct mwifiex_pcie_device pcie;
+
+	u8 txbd_flush;
+	u32 txbd_wrptr;
+	u32 txbd_rdptr;
+	u32 txbd_ring_size;
+	u8 *txbd_ring_vbase;
+	dma_addr_t txbd_ring_pbase;
+	void *txbd_ring[MWIFIEX_MAX_TXRX_BD];
+	struct sk_buff *tx_buf_list[MWIFIEX_MAX_TXRX_BD];
+
+	u32 rxbd_wrptr;
+	u32 rxbd_rdptr;
+	u32 rxbd_ring_size;
+	u8 *rxbd_ring_vbase;
+	dma_addr_t rxbd_ring_pbase;
+	void *rxbd_ring[MWIFIEX_MAX_TXRX_BD];
+	struct sk_buff *rx_buf_list[MWIFIEX_MAX_TXRX_BD];
+
+	u32 evtbd_wrptr;
+	u32 evtbd_rdptr;
+	u32 evtbd_ring_size;
+	u8 *evtbd_ring_vbase;
+	dma_addr_t evtbd_ring_pbase;
+	void *evtbd_ring[MWIFIEX_MAX_EVT_BD];
+	struct sk_buff *evt_buf_list[MWIFIEX_MAX_EVT_BD];
+
+	struct sk_buff *cmd_buf;
+	struct sk_buff *cmdrsp_buf;
+	u8 *sleep_cookie_vbase;
+	dma_addr_t sleep_cookie_pbase;
+	void __iomem *pci_mmap;
+	void __iomem *pci_mmap1;
+};
+
+static inline int
+mwifiex_pcie_txbd_empty(struct pcie_service_card *card, u32 rdptr)
+{
+	const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
+
+	switch (card->dev->device) {
+	case PCIE_DEVICE_ID_MARVELL_88W8766P:
+		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;
+		break;
+	case PCIE_DEVICE_ID_MARVELL_88W8897:
+		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;
+		break;
+	}
+
+	return 0;
+}
+
+static inline int
+mwifiex_pcie_txbd_not_full(struct pcie_service_card *card)
+{
+	const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
+
+	switch (card->dev->device) {
+	case PCIE_DEVICE_ID_MARVELL_88W8766P:
+		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;
+		break;
+	case PCIE_DEVICE_ID_MARVELL_88W8897:
+		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;
+		break;
+	}
+
+	return 0;
+}
+
+#endif /* _MWIFIEX_PCIE_H */