2774f20680
Import rtw88 based on wireless-testing at 5d5d68bcff1f7ff27ba0b938a4df5849849b47e3 with adjustments for FreeBSD. While our version of the driver has knowledge about the incapablity of DMA above 4GB we do see errors if people have more than that often already showing when laoding firmware. The problem for that is currently believed to be outside this driver so importing it anyway for now. Given the lack of full license texts on non-local files this is imported under the draft policy for handling SPDX files (D29226). [1] Approved by: core (imp) [1] MFC after: 2 weeks
280 lines
6.6 KiB
C
280 lines
6.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
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/* Copyright(c) 2018-2019 Realtek Corporation
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*/
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#ifndef __RTK_PCI_H_
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#define __RTK_PCI_H_
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#include "main.h"
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#define RTK_DEFAULT_TX_DESC_NUM 128
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#define RTK_BEQ_TX_DESC_NUM 256
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#define RTK_MAX_RX_DESC_NUM 512
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/* 11K + rx desc size */
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#define RTK_PCI_RX_BUF_SIZE (11454 + 24)
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#define RTK_PCI_CTRL 0x300
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#define BIT_RST_TRXDMA_INTF BIT(20)
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#define BIT_RX_TAG_EN BIT(15)
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#define REG_DBI_WDATA_V1 0x03E8
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#define REG_DBI_RDATA_V1 0x03EC
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#define REG_DBI_FLAG_V1 0x03F0
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#define BIT_DBI_RFLAG BIT(17)
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#define BIT_DBI_WFLAG BIT(16)
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#define BITS_DBI_WREN GENMASK(15, 12)
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#define BITS_DBI_ADDR_MASK GENMASK(11, 2)
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#define REG_MDIO_V1 0x03F4
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#define REG_PCIE_MIX_CFG 0x03F8
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#define BITS_MDIO_ADDR_MASK GENMASK(4, 0)
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#define BIT_MDIO_WFLAG_V1 BIT(5)
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#define RTW_PCI_MDIO_PG_SZ BIT(5)
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#define RTW_PCI_MDIO_PG_OFFS_G1 0
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#define RTW_PCI_MDIO_PG_OFFS_G2 2
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#define RTW_PCI_WR_RETRY_CNT 20
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#define RTK_PCIE_LINK_CFG 0x0719
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#define BIT_CLKREQ_SW_EN BIT(4)
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#define BIT_L1_SW_EN BIT(3)
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#define BIT_CLKREQ_N_PAD BIT(0)
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#define RTK_PCIE_CLKDLY_CTRL 0x0725
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#define BIT_PCI_BCNQ_FLAG BIT(4)
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#define RTK_PCI_TXBD_DESA_BCNQ 0x308
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#define RTK_PCI_TXBD_DESA_H2CQ 0x1320
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#define RTK_PCI_TXBD_DESA_MGMTQ 0x310
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#define RTK_PCI_TXBD_DESA_BKQ 0x330
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#define RTK_PCI_TXBD_DESA_BEQ 0x328
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#define RTK_PCI_TXBD_DESA_VIQ 0x320
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#define RTK_PCI_TXBD_DESA_VOQ 0x318
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#define RTK_PCI_TXBD_DESA_HI0Q 0x340
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#define RTK_PCI_RXBD_DESA_MPDUQ 0x338
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#define TRX_BD_IDX_MASK GENMASK(11, 0)
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#define TRX_BD_HW_IDX_MASK GENMASK(27, 16)
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/* BCNQ is specialized for rsvd page, does not need to specify a number */
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#define RTK_PCI_TXBD_NUM_H2CQ 0x1328
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#define RTK_PCI_TXBD_NUM_MGMTQ 0x380
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#define RTK_PCI_TXBD_NUM_BKQ 0x38A
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#define RTK_PCI_TXBD_NUM_BEQ 0x388
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#define RTK_PCI_TXBD_NUM_VIQ 0x386
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#define RTK_PCI_TXBD_NUM_VOQ 0x384
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#define RTK_PCI_TXBD_NUM_HI0Q 0x38C
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#define RTK_PCI_RXBD_NUM_MPDUQ 0x382
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#define RTK_PCI_TXBD_IDX_H2CQ 0x132C
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#define RTK_PCI_TXBD_IDX_MGMTQ 0x3B0
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#define RTK_PCI_TXBD_IDX_BKQ 0x3AC
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#define RTK_PCI_TXBD_IDX_BEQ 0x3A8
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#define RTK_PCI_TXBD_IDX_VIQ 0x3A4
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#define RTK_PCI_TXBD_IDX_VOQ 0x3A0
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#define RTK_PCI_TXBD_IDX_HI0Q 0x3B8
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#define RTK_PCI_RXBD_IDX_MPDUQ 0x3B4
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#define RTK_PCI_TXBD_RWPTR_CLR 0x39C
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#define RTK_PCI_TXBD_H2CQ_CSR 0x1330
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#define BIT_CLR_H2CQ_HOST_IDX BIT(16)
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#define BIT_CLR_H2CQ_HW_IDX BIT(8)
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#define RTK_PCI_HIMR0 0x0B0
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#define RTK_PCI_HISR0 0x0B4
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#define RTK_PCI_HIMR1 0x0B8
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#define RTK_PCI_HISR1 0x0BC
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#define RTK_PCI_HIMR2 0x10B0
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#define RTK_PCI_HISR2 0x10B4
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#define RTK_PCI_HIMR3 0x10B8
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#define RTK_PCI_HISR3 0x10BC
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/* IMR 0 */
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#define IMR_TIMER2 BIT(31)
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#define IMR_TIMER1 BIT(30)
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#define IMR_PSTIMEOUT BIT(29)
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#define IMR_GTINT4 BIT(28)
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#define IMR_GTINT3 BIT(27)
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#define IMR_TBDER BIT(26)
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#define IMR_TBDOK BIT(25)
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#define IMR_TSF_BIT32_TOGGLE BIT(24)
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#define IMR_BCNDMAINT0 BIT(20)
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#define IMR_BCNDOK0 BIT(16)
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#define IMR_HSISR_IND_ON_INT BIT(15)
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#define IMR_BCNDMAINT_E BIT(14)
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#define IMR_ATIMEND BIT(12)
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#define IMR_HISR1_IND_INT BIT(11)
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#define IMR_C2HCMD BIT(10)
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#define IMR_CPWM2 BIT(9)
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#define IMR_CPWM BIT(8)
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#define IMR_HIGHDOK BIT(7)
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#define IMR_MGNTDOK BIT(6)
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#define IMR_BKDOK BIT(5)
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#define IMR_BEDOK BIT(4)
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#define IMR_VIDOK BIT(3)
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#define IMR_VODOK BIT(2)
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#define IMR_RDU BIT(1)
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#define IMR_ROK BIT(0)
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/* IMR 1 */
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#define IMR_TXFIFO_TH_INT BIT(30)
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#define IMR_BTON_STS_UPDATE BIT(29)
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#define IMR_MCUERR BIT(28)
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#define IMR_BCNDMAINT7 BIT(27)
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#define IMR_BCNDMAINT6 BIT(26)
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#define IMR_BCNDMAINT5 BIT(25)
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#define IMR_BCNDMAINT4 BIT(24)
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#define IMR_BCNDMAINT3 BIT(23)
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#define IMR_BCNDMAINT2 BIT(22)
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#define IMR_BCNDMAINT1 BIT(21)
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#define IMR_BCNDOK7 BIT(20)
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#define IMR_BCNDOK6 BIT(19)
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#define IMR_BCNDOK5 BIT(18)
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#define IMR_BCNDOK4 BIT(17)
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#define IMR_BCNDOK3 BIT(16)
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#define IMR_BCNDOK2 BIT(15)
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#define IMR_BCNDOK1 BIT(14)
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#define IMR_ATIMEND_E BIT(13)
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#define IMR_ATIMEND BIT(12)
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#define IMR_TXERR BIT(11)
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#define IMR_RXERR BIT(10)
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#define IMR_TXFOVW BIT(9)
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#define IMR_RXFOVW BIT(8)
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#define IMR_CPU_MGQ_TXDONE BIT(5)
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#define IMR_PS_TIMER_C BIT(4)
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#define IMR_PS_TIMER_B BIT(3)
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#define IMR_PS_TIMER_A BIT(2)
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#define IMR_CPUMGQ_TX_TIMER BIT(1)
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/* IMR 3 */
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#define IMR_H2CDOK BIT(16)
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enum rtw_pci_flags {
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RTW_PCI_FLAG_NAPI_RUNNING,
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NUM_OF_RTW_PCI_FLAGS,
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};
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/* one element is reserved to know if the ring is closed */
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static inline int avail_desc(u32 wp, u32 rp, u32 len)
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{
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if (rp > wp)
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return rp - wp - 1;
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else
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return len - wp + rp - 1;
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}
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#define RTK_PCI_TXBD_OWN_OFFSET 15
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#define RTK_PCI_TXBD_BCN_WORK 0x383
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struct rtw_pci_tx_buffer_desc {
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__le16 buf_size;
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__le16 psb_len;
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__le32 dma;
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};
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struct rtw_pci_tx_data {
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dma_addr_t dma;
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u8 sn;
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};
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struct rtw_pci_ring {
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u8 *head;
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dma_addr_t dma;
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u8 desc_size;
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u32 len;
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u32 wp;
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u32 rp;
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};
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struct rtw_pci_tx_ring {
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struct rtw_pci_ring r;
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struct sk_buff_head queue;
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bool queue_stopped;
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};
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struct rtw_pci_rx_buffer_desc {
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__le16 buf_size;
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__le16 total_pkt_size;
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__le32 dma;
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};
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struct rtw_pci_rx_ring {
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struct rtw_pci_ring r;
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struct sk_buff *buf[RTK_MAX_RX_DESC_NUM];
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};
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#define RX_TAG_MAX 8192
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struct rtw_pci {
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struct pci_dev *pdev;
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/* Used for PCI interrupt. */
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spinlock_t hwirq_lock;
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/* Used for PCI TX ring/queueing, and enable INT. */
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spinlock_t irq_lock;
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u32 irq_mask[4];
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bool irq_enabled;
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bool running;
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/* napi structure */
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struct net_device netdev;
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struct napi_struct napi;
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u16 rx_tag;
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DECLARE_BITMAP(tx_queued, RTK_MAX_TX_QUEUE_NUM);
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struct rtw_pci_tx_ring tx_rings[RTK_MAX_TX_QUEUE_NUM];
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struct rtw_pci_rx_ring rx_rings[RTK_MAX_RX_QUEUE_NUM];
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u16 link_ctrl;
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atomic_t link_usage;
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bool rx_no_aspm;
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DECLARE_BITMAP(flags, NUM_OF_RTW_PCI_FLAGS);
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void __iomem *mmap;
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};
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extern const struct dev_pm_ops rtw_pm_ops;
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int rtw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id);
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void rtw_pci_remove(struct pci_dev *pdev);
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void rtw_pci_shutdown(struct pci_dev *pdev);
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static inline u32 max_num_of_tx_queue(u8 queue)
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{
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u32 max_num;
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switch (queue) {
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case RTW_TX_QUEUE_BE:
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max_num = RTK_BEQ_TX_DESC_NUM;
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break;
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case RTW_TX_QUEUE_BCN:
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max_num = 1;
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break;
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default:
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max_num = RTK_DEFAULT_TX_DESC_NUM;
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break;
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}
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return max_num;
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}
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static inline struct
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rtw_pci_tx_data *rtw_pci_get_tx_data(struct sk_buff *skb)
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{
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struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
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BUILD_BUG_ON(sizeof(struct rtw_pci_tx_data) >
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sizeof(info->status.status_driver_data));
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return (struct rtw_pci_tx_data *)info->status.status_driver_data;
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}
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static inline
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struct rtw_pci_tx_buffer_desc *get_tx_buffer_desc(struct rtw_pci_tx_ring *ring,
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u32 size)
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{
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u8 *buf_desc;
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buf_desc = ring->r.head + ring->r.wp * size;
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return (struct rtw_pci_tx_buffer_desc *)buf_desc;
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}
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#endif
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