/* @file mwifiex_pcie.h * * @brief This file contains definitions for PCI-E interface. * driver. * * Copyright (C) 2011, 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 #include #include #include "main.h" #define PCIE8766_DEFAULT_FW_NAME "mrvl/pcie8766_uapsta.bin" /* 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 0x04 #define MWIFIEX_EVTBD_MASK 0x07 /* 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 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 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) /* 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) 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; u16 flags; } __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; struct mwifiex_pcie_buf_desc *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; struct mwifiex_pcie_buf_desc *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; struct mwifiex_pcie_buf_desc *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; 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; } static inline int mwifiex_pcie_txbd_not_full(struct pcie_service_card *card) { 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; } #endif /* _MWIFIEX_PCIE_H */