/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ /* Copyright(c) 2018-2019 Realtek Corporation */ #ifndef __RTK_PCI_H_ #define __RTK_PCI_H_ #include "main.h" #define RTK_DEFAULT_TX_DESC_NUM 128 #define RTK_BEQ_TX_DESC_NUM 256 #define RTK_MAX_RX_DESC_NUM 512 /* 11K + rx desc size */ #define RTK_PCI_RX_BUF_SIZE (11454 + 24) #define RTK_PCI_CTRL 0x300 #define BIT_RST_TRXDMA_INTF BIT(20) #define BIT_RX_TAG_EN BIT(15) #define REG_DBI_WDATA_V1 0x03E8 #define REG_DBI_RDATA_V1 0x03EC #define REG_DBI_FLAG_V1 0x03F0 #define BIT_DBI_RFLAG BIT(17) #define BIT_DBI_WFLAG BIT(16) #define BITS_DBI_WREN GENMASK(15, 12) #define BITS_DBI_ADDR_MASK GENMASK(11, 2) #define REG_MDIO_V1 0x03F4 #define REG_PCIE_MIX_CFG 0x03F8 #define BITS_MDIO_ADDR_MASK GENMASK(4, 0) #define BIT_MDIO_WFLAG_V1 BIT(5) #define RTW_PCI_MDIO_PG_SZ BIT(5) #define RTW_PCI_MDIO_PG_OFFS_G1 0 #define RTW_PCI_MDIO_PG_OFFS_G2 2 #define RTW_PCI_WR_RETRY_CNT 20 #define RTK_PCIE_LINK_CFG 0x0719 #define BIT_CLKREQ_SW_EN BIT(4) #define BIT_L1_SW_EN BIT(3) #define RTK_PCIE_CLKDLY_CTRL 0x0725 #define BIT_PCI_BCNQ_FLAG BIT(4) #define RTK_PCI_TXBD_DESA_BCNQ 0x308 #define RTK_PCI_TXBD_DESA_H2CQ 0x1320 #define RTK_PCI_TXBD_DESA_MGMTQ 0x310 #define RTK_PCI_TXBD_DESA_BKQ 0x330 #define RTK_PCI_TXBD_DESA_BEQ 0x328 #define RTK_PCI_TXBD_DESA_VIQ 0x320 #define RTK_PCI_TXBD_DESA_VOQ 0x318 #define RTK_PCI_TXBD_DESA_HI0Q 0x340 #define RTK_PCI_RXBD_DESA_MPDUQ 0x338 #define TRX_BD_IDX_MASK GENMASK(11, 0) /* BCNQ is specialized for rsvd page, does not need to specify a number */ #define RTK_PCI_TXBD_NUM_H2CQ 0x1328 #define RTK_PCI_TXBD_NUM_MGMTQ 0x380 #define RTK_PCI_TXBD_NUM_BKQ 0x38A #define RTK_PCI_TXBD_NUM_BEQ 0x388 #define RTK_PCI_TXBD_NUM_VIQ 0x386 #define RTK_PCI_TXBD_NUM_VOQ 0x384 #define RTK_PCI_TXBD_NUM_HI0Q 0x38C #define RTK_PCI_RXBD_NUM_MPDUQ 0x382 #define RTK_PCI_TXBD_IDX_H2CQ 0x132C #define RTK_PCI_TXBD_IDX_MGMTQ 0x3B0 #define RTK_PCI_TXBD_IDX_BKQ 0x3AC #define RTK_PCI_TXBD_IDX_BEQ 0x3A8 #define RTK_PCI_TXBD_IDX_VIQ 0x3A4 #define RTK_PCI_TXBD_IDX_VOQ 0x3A0 #define RTK_PCI_TXBD_IDX_HI0Q 0x3B8 #define RTK_PCI_RXBD_IDX_MPDUQ 0x3B4 #define RTK_PCI_TXBD_RWPTR_CLR 0x39C #define RTK_PCI_TXBD_H2CQ_CSR 0x1330 #define BIT_CLR_H2CQ_HOST_IDX BIT(16) #define BIT_CLR_H2CQ_HW_IDX BIT(8) #define RTK_PCI_HIMR0 0x0B0 #define RTK_PCI_HISR0 0x0B4 #define RTK_PCI_HIMR1 0x0B8 #define RTK_PCI_HISR1 0x0BC #define RTK_PCI_HIMR2 0x10B0 #define RTK_PCI_HISR2 0x10B4 #define RTK_PCI_HIMR3 0x10B8 #define RTK_PCI_HISR3 0x10BC /* IMR 0 */ #define IMR_TIMER2 BIT(31) #define IMR_TIMER1 BIT(30) #define IMR_PSTIMEOUT BIT(29) #define IMR_GTINT4 BIT(28) #define IMR_GTINT3 BIT(27) #define IMR_TBDER BIT(26) #define IMR_TBDOK BIT(25) #define IMR_TSF_BIT32_TOGGLE BIT(24) #define IMR_BCNDMAINT0 BIT(20) #define IMR_BCNDOK0 BIT(16) #define IMR_HSISR_IND_ON_INT BIT(15) #define IMR_BCNDMAINT_E BIT(14) #define IMR_ATIMEND BIT(12) #define IMR_HISR1_IND_INT BIT(11) #define IMR_C2HCMD BIT(10) #define IMR_CPWM2 BIT(9) #define IMR_CPWM BIT(8) #define IMR_HIGHDOK BIT(7) #define IMR_MGNTDOK BIT(6) #define IMR_BKDOK BIT(5) #define IMR_BEDOK BIT(4) #define IMR_VIDOK BIT(3) #define IMR_VODOK BIT(2) #define IMR_RDU BIT(1) #define IMR_ROK BIT(0) /* IMR 1 */ #define IMR_TXFIFO_TH_INT BIT(30) #define IMR_BTON_STS_UPDATE BIT(29) #define IMR_MCUERR BIT(28) #define IMR_BCNDMAINT7 BIT(27) #define IMR_BCNDMAINT6 BIT(26) #define IMR_BCNDMAINT5 BIT(25) #define IMR_BCNDMAINT4 BIT(24) #define IMR_BCNDMAINT3 BIT(23) #define IMR_BCNDMAINT2 BIT(22) #define IMR_BCNDMAINT1 BIT(21) #define IMR_BCNDOK7 BIT(20) #define IMR_BCNDOK6 BIT(19) #define IMR_BCNDOK5 BIT(18) #define IMR_BCNDOK4 BIT(17) #define IMR_BCNDOK3 BIT(16) #define IMR_BCNDOK2 BIT(15) #define IMR_BCNDOK1 BIT(14) #define IMR_ATIMEND_E BIT(13) #define IMR_ATIMEND BIT(12) #define IMR_TXERR BIT(11) #define IMR_RXERR BIT(10) #define IMR_TXFOVW BIT(9) #define IMR_RXFOVW BIT(8) #define IMR_CPU_MGQ_TXDONE BIT(5) #define IMR_PS_TIMER_C BIT(4) #define IMR_PS_TIMER_B BIT(3) #define IMR_PS_TIMER_A BIT(2) #define IMR_CPUMGQ_TX_TIMER BIT(1) /* IMR 3 */ #define IMR_H2CDOK BIT(16) /* one element is reserved to know if the ring is closed */ static inline int avail_desc(u32 wp, u32 rp, u32 len) { if (rp > wp) return rp - wp - 1; else return len - wp + rp - 1; } #define RTK_PCI_TXBD_OWN_OFFSET 15 #define RTK_PCI_TXBD_BCN_WORK 0x383 struct rtw_pci_tx_buffer_desc { __le16 buf_size; __le16 psb_len; __le32 dma; }; struct rtw_pci_tx_data { dma_addr_t dma; u8 sn; }; struct rtw_pci_ring { u8 *head; dma_addr_t dma; u8 desc_size; u32 len; u32 wp; u32 rp; }; struct rtw_pci_tx_ring { struct rtw_pci_ring r; struct sk_buff_head queue; bool queue_stopped; }; struct rtw_pci_rx_buffer_desc { __le16 buf_size; __le16 total_pkt_size; __le32 dma; }; struct rtw_pci_rx_ring { struct rtw_pci_ring r; struct sk_buff *buf[RTK_MAX_RX_DESC_NUM]; }; #define RX_TAG_MAX 8192 struct rtw_pci { struct pci_dev *pdev; /* Used for PCI interrupt. */ spinlock_t hwirq_lock; /* Used for PCI TX queueing. */ spinlock_t irq_lock; u32 irq_mask[4]; bool irq_enabled; u16 rx_tag; DECLARE_BITMAP(tx_queued, RTK_MAX_TX_QUEUE_NUM); struct rtw_pci_tx_ring tx_rings[RTK_MAX_TX_QUEUE_NUM]; struct rtw_pci_rx_ring rx_rings[RTK_MAX_RX_QUEUE_NUM]; u16 link_ctrl; void __iomem *mmap; }; extern const struct dev_pm_ops rtw_pm_ops; int rtw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id); void rtw_pci_remove(struct pci_dev *pdev); void rtw_pci_shutdown(struct pci_dev *pdev); static inline u32 max_num_of_tx_queue(u8 queue) { u32 max_num; switch (queue) { case RTW_TX_QUEUE_BE: max_num = RTK_BEQ_TX_DESC_NUM; break; case RTW_TX_QUEUE_BCN: max_num = 1; break; default: max_num = RTK_DEFAULT_TX_DESC_NUM; break; } return max_num; } static inline struct rtw_pci_tx_data *rtw_pci_get_tx_data(struct sk_buff *skb) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); BUILD_BUG_ON(sizeof(struct rtw_pci_tx_data) > sizeof(info->status.status_driver_data)); return (struct rtw_pci_tx_data *)info->status.status_driver_data; } static inline struct rtw_pci_tx_buffer_desc *get_tx_buffer_desc(struct rtw_pci_tx_ring *ring, u32 size) { u8 *buf_desc; buf_desc = ring->r.head + ring->r.wp * size; return (struct rtw_pci_tx_buffer_desc *)buf_desc; } #endif