326 lines
9.2 KiB
C
326 lines
9.2 KiB
C
/* @file mwifiex_pcie.h
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*
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* @brief This file contains definitions for PCI-E interface.
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* driver.
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*
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* Copyright (C) 2011, Marvell International Ltd.
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*
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* This software file (the "File") is distributed by Marvell International
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* Ltd. under the terms of the GNU General Public License Version 2, June 1991
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* (the "License"). You may use, redistribute and/or modify this File in
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* accordance with the terms and conditions of the License, a copy of which
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* is available by writing to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
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* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
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*
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* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
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* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
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* this warranty disclaimer.
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*/
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#ifndef _MWIFIEX_PCIE_H
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#define _MWIFIEX_PCIE_H
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#include <linux/pci.h>
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#include <linux/pcieport_if.h>
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#include <linux/interrupt.h>
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#include "main.h"
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#define PCIE8766_DEFAULT_FW_NAME "mrvl/pcie8766_uapsta.bin"
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#define PCIE8897_DEFAULT_FW_NAME "mrvl/pcie8897_uapsta.bin"
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#define PCIE_VENDOR_ID_MARVELL (0x11ab)
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#define PCIE_DEVICE_ID_MARVELL_88W8766P (0x2b30)
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#define PCIE_DEVICE_ID_MARVELL_88W8897 (0x2b38)
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/* Constants for Buffer Descriptor (BD) rings */
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#define MWIFIEX_MAX_TXRX_BD 0x20
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#define MWIFIEX_TXBD_MASK 0x3F
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#define MWIFIEX_RXBD_MASK 0x3F
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#define MWIFIEX_MAX_EVT_BD 0x04
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#define MWIFIEX_EVTBD_MASK 0x07
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/* PCIE INTERNAL REGISTERS */
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#define PCIE_SCRATCH_0_REG 0xC10
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#define PCIE_SCRATCH_1_REG 0xC14
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#define PCIE_CPU_INT_EVENT 0xC18
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#define PCIE_CPU_INT_STATUS 0xC1C
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#define PCIE_HOST_INT_STATUS 0xC30
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#define PCIE_HOST_INT_MASK 0xC34
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#define PCIE_HOST_INT_STATUS_MASK 0xC3C
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#define PCIE_SCRATCH_2_REG 0xC40
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#define PCIE_SCRATCH_3_REG 0xC44
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#define PCIE_SCRATCH_4_REG 0xCD0
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#define PCIE_SCRATCH_5_REG 0xCD4
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#define PCIE_SCRATCH_6_REG 0xCD8
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#define PCIE_SCRATCH_7_REG 0xCDC
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#define PCIE_SCRATCH_8_REG 0xCE0
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#define PCIE_SCRATCH_9_REG 0xCE4
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#define PCIE_SCRATCH_10_REG 0xCE8
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#define PCIE_SCRATCH_11_REG 0xCEC
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#define PCIE_SCRATCH_12_REG 0xCF0
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#define PCIE_RD_DATA_PTR_Q0_Q1 0xC08C
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#define PCIE_WR_DATA_PTR_Q0_Q1 0xC05C
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#define CPU_INTR_DNLD_RDY BIT(0)
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#define CPU_INTR_DOOR_BELL BIT(1)
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#define CPU_INTR_SLEEP_CFM_DONE BIT(2)
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#define CPU_INTR_RESET BIT(3)
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#define HOST_INTR_DNLD_DONE BIT(0)
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#define HOST_INTR_UPLD_RDY BIT(1)
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#define HOST_INTR_CMD_DONE BIT(2)
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#define HOST_INTR_EVENT_RDY BIT(3)
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#define HOST_INTR_MASK (HOST_INTR_DNLD_DONE | \
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HOST_INTR_UPLD_RDY | \
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HOST_INTR_CMD_DONE | \
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HOST_INTR_EVENT_RDY)
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#define MWIFIEX_BD_FLAG_ROLLOVER_IND BIT(7)
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#define MWIFIEX_BD_FLAG_FIRST_DESC BIT(0)
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#define MWIFIEX_BD_FLAG_LAST_DESC BIT(1)
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#define MWIFIEX_BD_FLAG_SOP BIT(0)
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#define MWIFIEX_BD_FLAG_EOP BIT(1)
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#define MWIFIEX_BD_FLAG_XS_SOP BIT(2)
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#define MWIFIEX_BD_FLAG_XS_EOP BIT(3)
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#define MWIFIEX_BD_FLAG_EVT_ROLLOVER_IND BIT(7)
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#define MWIFIEX_BD_FLAG_RX_ROLLOVER_IND BIT(10)
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#define MWIFIEX_BD_FLAG_TX_START_PTR BIT(16)
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#define MWIFIEX_BD_FLAG_TX_ROLLOVER_IND BIT(26)
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/* Max retry number of command write */
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#define MAX_WRITE_IOMEM_RETRY 2
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/* Define PCIE block size for firmware download */
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#define MWIFIEX_PCIE_BLOCK_SIZE_FW_DNLD 256
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/* FW awake cookie after FW ready */
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#define FW_AWAKE_COOKIE (0xAA55AA55)
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#define MWIFIEX_DEF_SLEEP_COOKIE 0xBEEFBEEF
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#define MWIFIEX_MAX_DELAY_COUNT 5
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struct mwifiex_pcie_card_reg {
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u16 cmd_addr_lo;
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u16 cmd_addr_hi;
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u16 fw_status;
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u16 cmd_size;
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u16 cmdrsp_addr_lo;
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u16 cmdrsp_addr_hi;
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u16 tx_rdptr;
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u16 tx_wrptr;
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u16 rx_rdptr;
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u16 rx_wrptr;
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u16 evt_rdptr;
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u16 evt_wrptr;
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u16 drv_rdy;
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u16 tx_start_ptr;
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u32 tx_mask;
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u32 tx_wrap_mask;
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u32 rx_mask;
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u32 rx_wrap_mask;
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u32 tx_rollover_ind;
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u32 rx_rollover_ind;
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u32 evt_rollover_ind;
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u8 ring_flag_sop;
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u8 ring_flag_eop;
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u8 ring_flag_xs_sop;
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u8 ring_flag_xs_eop;
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u32 ring_tx_start_ptr;
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u8 pfu_enabled;
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u8 sleep_cookie;
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};
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static const struct mwifiex_pcie_card_reg mwifiex_reg_8766 = {
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.cmd_addr_lo = PCIE_SCRATCH_0_REG,
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.cmd_addr_hi = PCIE_SCRATCH_1_REG,
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.cmd_size = PCIE_SCRATCH_2_REG,
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.fw_status = PCIE_SCRATCH_3_REG,
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.cmdrsp_addr_lo = PCIE_SCRATCH_4_REG,
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.cmdrsp_addr_hi = PCIE_SCRATCH_5_REG,
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.tx_rdptr = PCIE_SCRATCH_6_REG,
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.tx_wrptr = PCIE_SCRATCH_7_REG,
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.rx_rdptr = PCIE_SCRATCH_8_REG,
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.rx_wrptr = PCIE_SCRATCH_9_REG,
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.evt_rdptr = PCIE_SCRATCH_10_REG,
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.evt_wrptr = PCIE_SCRATCH_11_REG,
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.drv_rdy = PCIE_SCRATCH_12_REG,
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.tx_start_ptr = 0,
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.tx_mask = MWIFIEX_TXBD_MASK,
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.tx_wrap_mask = 0,
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.rx_mask = MWIFIEX_RXBD_MASK,
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.rx_wrap_mask = 0,
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.tx_rollover_ind = MWIFIEX_BD_FLAG_ROLLOVER_IND,
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.rx_rollover_ind = MWIFIEX_BD_FLAG_ROLLOVER_IND,
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.evt_rollover_ind = MWIFIEX_BD_FLAG_ROLLOVER_IND,
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.ring_flag_sop = 0,
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.ring_flag_eop = 0,
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.ring_flag_xs_sop = 0,
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.ring_flag_xs_eop = 0,
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.ring_tx_start_ptr = 0,
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.pfu_enabled = 0,
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.sleep_cookie = 1,
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};
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static const struct mwifiex_pcie_card_reg mwifiex_reg_8897 = {
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.cmd_addr_lo = PCIE_SCRATCH_0_REG,
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.cmd_addr_hi = PCIE_SCRATCH_1_REG,
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.cmd_size = PCIE_SCRATCH_2_REG,
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.fw_status = PCIE_SCRATCH_3_REG,
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.cmdrsp_addr_lo = PCIE_SCRATCH_4_REG,
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.cmdrsp_addr_hi = PCIE_SCRATCH_5_REG,
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.tx_rdptr = PCIE_RD_DATA_PTR_Q0_Q1,
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.tx_wrptr = PCIE_WR_DATA_PTR_Q0_Q1,
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.rx_rdptr = PCIE_WR_DATA_PTR_Q0_Q1,
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.rx_wrptr = PCIE_RD_DATA_PTR_Q0_Q1,
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.evt_rdptr = PCIE_SCRATCH_10_REG,
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.evt_wrptr = PCIE_SCRATCH_11_REG,
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.drv_rdy = PCIE_SCRATCH_12_REG,
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.tx_start_ptr = 16,
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.tx_mask = 0x03FF0000,
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.tx_wrap_mask = 0x07FF0000,
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.rx_mask = 0x000003FF,
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.rx_wrap_mask = 0x000007FF,
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.tx_rollover_ind = MWIFIEX_BD_FLAG_TX_ROLLOVER_IND,
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.rx_rollover_ind = MWIFIEX_BD_FLAG_RX_ROLLOVER_IND,
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.evt_rollover_ind = MWIFIEX_BD_FLAG_EVT_ROLLOVER_IND,
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.ring_flag_sop = MWIFIEX_BD_FLAG_SOP,
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.ring_flag_eop = MWIFIEX_BD_FLAG_EOP,
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.ring_flag_xs_sop = MWIFIEX_BD_FLAG_XS_SOP,
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.ring_flag_xs_eop = MWIFIEX_BD_FLAG_XS_EOP,
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.ring_tx_start_ptr = MWIFIEX_BD_FLAG_TX_START_PTR,
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.pfu_enabled = 1,
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.sleep_cookie = 0,
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};
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struct mwifiex_pcie_device {
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const char *firmware;
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const struct mwifiex_pcie_card_reg *reg;
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u16 blksz_fw_dl;
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u16 tx_buf_size;
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};
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static const struct mwifiex_pcie_device mwifiex_pcie8766 = {
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.firmware = PCIE8766_DEFAULT_FW_NAME,
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.reg = &mwifiex_reg_8766,
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.blksz_fw_dl = MWIFIEX_PCIE_BLOCK_SIZE_FW_DNLD,
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.tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K,
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};
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static const struct mwifiex_pcie_device mwifiex_pcie8897 = {
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.firmware = PCIE8897_DEFAULT_FW_NAME,
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.reg = &mwifiex_reg_8897,
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.blksz_fw_dl = MWIFIEX_PCIE_BLOCK_SIZE_FW_DNLD,
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.tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K,
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};
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struct mwifiex_evt_buf_desc {
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u64 paddr;
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u16 len;
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u16 flags;
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} __packed;
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struct mwifiex_pcie_buf_desc {
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u64 paddr;
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u16 len;
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u16 flags;
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} __packed;
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struct mwifiex_pfu_buf_desc {
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u16 flags;
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u16 offset;
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u16 frag_len;
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u16 len;
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u64 paddr;
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u32 reserved;
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} __packed;
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struct pcie_service_card {
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struct pci_dev *dev;
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struct mwifiex_adapter *adapter;
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struct mwifiex_pcie_device pcie;
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u8 txbd_flush;
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u32 txbd_wrptr;
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u32 txbd_rdptr;
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u32 txbd_ring_size;
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u8 *txbd_ring_vbase;
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dma_addr_t txbd_ring_pbase;
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void *txbd_ring[MWIFIEX_MAX_TXRX_BD];
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struct sk_buff *tx_buf_list[MWIFIEX_MAX_TXRX_BD];
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u32 rxbd_wrptr;
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u32 rxbd_rdptr;
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u32 rxbd_ring_size;
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u8 *rxbd_ring_vbase;
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dma_addr_t rxbd_ring_pbase;
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void *rxbd_ring[MWIFIEX_MAX_TXRX_BD];
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struct sk_buff *rx_buf_list[MWIFIEX_MAX_TXRX_BD];
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u32 evtbd_wrptr;
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u32 evtbd_rdptr;
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u32 evtbd_ring_size;
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u8 *evtbd_ring_vbase;
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dma_addr_t evtbd_ring_pbase;
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void *evtbd_ring[MWIFIEX_MAX_EVT_BD];
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struct sk_buff *evt_buf_list[MWIFIEX_MAX_EVT_BD];
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struct sk_buff *cmd_buf;
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struct sk_buff *cmdrsp_buf;
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u8 *sleep_cookie_vbase;
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dma_addr_t sleep_cookie_pbase;
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void __iomem *pci_mmap;
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void __iomem *pci_mmap1;
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};
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static inline int
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mwifiex_pcie_txbd_empty(struct pcie_service_card *card, u32 rdptr)
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{
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const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
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switch (card->dev->device) {
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case PCIE_DEVICE_ID_MARVELL_88W8766P:
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if (((card->txbd_wrptr & reg->tx_mask) ==
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(rdptr & reg->tx_mask)) &&
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((card->txbd_wrptr & reg->tx_rollover_ind) !=
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(rdptr & reg->tx_rollover_ind)))
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return 1;
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break;
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case PCIE_DEVICE_ID_MARVELL_88W8897:
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if (((card->txbd_wrptr & reg->tx_mask) ==
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(rdptr & reg->tx_mask)) &&
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((card->txbd_wrptr & reg->tx_rollover_ind) ==
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(rdptr & reg->tx_rollover_ind)))
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return 1;
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break;
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}
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return 0;
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}
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static inline int
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mwifiex_pcie_txbd_not_full(struct pcie_service_card *card)
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{
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const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
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switch (card->dev->device) {
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case PCIE_DEVICE_ID_MARVELL_88W8766P:
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if (((card->txbd_wrptr & reg->tx_mask) !=
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(card->txbd_rdptr & reg->tx_mask)) ||
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((card->txbd_wrptr & reg->tx_rollover_ind) !=
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(card->txbd_rdptr & reg->tx_rollover_ind)))
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return 1;
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break;
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case PCIE_DEVICE_ID_MARVELL_88W8897:
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if (((card->txbd_wrptr & reg->tx_mask) !=
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(card->txbd_rdptr & reg->tx_mask)) ||
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((card->txbd_wrptr & reg->tx_rollover_ind) ==
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(card->txbd_rdptr & reg->tx_rollover_ind)))
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return 1;
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break;
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}
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return 0;
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}
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#endif /* _MWIFIEX_PCIE_H */
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