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products/Sources/formale Sprachen/C/LibreOffice/icon-themes/elementary_svg/cmd/   (Office von Apache Version 25.8.3.2©)  Datei vom 5.10.2025 mit Größe 10 kB image not shown  

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t7xx_hif_dpmaif.h


products/Sources/formale Sprachen/C/Linux/drivers/net/wwan/t7xx/t7xx_hif_dpmaif.h

/* SPDX-License-Identifier: GPL-2.0-only * * Copyright (c) 2021, MediaTek Inc. * Copyright (c) 2021-2022, Intel Corporation. * * Authors: * Amir Hanania * Haijun Liu * Moises Veleta * Ricardo Martinez * * Contributors: * Chiranjeevi Rapolu * Eliot Lee * Sreehari Kancharla */ #ifndef __T7XX_HIF_DPMAIF_H__ #define __T7XX_HIF_DPMAIF_H__ #include #include #include #include #include #include #include #include #include #include "t7xx_dpmaif.h" #include "t7xx_pci.h" #include "t7xx_state_monitor.h" /* SKB control buffer */ struct t7xx_skb_cb { u8 netif_idx; u8 txq_number; u8 rx_pkt_type; }; #define T7XX_SKB_CB(__skb) ((struct t7xx_skb_cb *)(__skb)->cb) enum dpmaif_rdwr { DPMAIF_READ, DPMAIF_WRITE, }; /* Structure of DL BAT */ struct dpmaif_cur_rx_skb_info { bool msg_pit_received; struct sk_buff *cur_skb; unsigned int cur_chn_idx; unsigned int check_sum; unsigned int pit_dp; unsigned int pkt_type; int err_payload; }; struct dpmaif_bat { unsigned int p_buffer_addr; unsigned int buffer_addr_ext; }; struct dpmaif_bat_skb { struct sk_buff *skb; dma_addr_t data_bus_addr; unsigned int data_len; }; struct dpmaif_bat_page { struct page *page; dma_addr_t data_bus_addr; unsigned int offset; unsigned int data_len; }; enum bat_type { BAT_TYPE_NORMAL, BAT_TYPE_FRAG, }; struct dpmaif_bat_request { void *bat_base; dma_addr_t bat_bus_addr; unsigned int bat_size_cnt; unsigned int bat_wr_idx; unsigned int bat_release_rd_idx; void *bat_skb; unsigned int pkt_buf_sz; unsigned long *bat_bitmap; atomic_t refcnt; spinlock_t mask_lock; /* Protects BAT mask */ enum bat_type type; }; struct dpmaif_rx_queue { unsigned int index; bool que_started; unsigned int budget; void *pit_base; dma_addr_t pit_bus_addr; unsigned int pit_size_cnt; unsigned int pit_rd_idx; unsigned int pit_wr_idx; unsigned int pit_release_rd_idx; struct dpmaif_bat_request *bat_req; struct dpmaif_bat_request *bat_frag; atomic_t rx_processing; struct dpmaif_ctrl *dpmaif_ctrl; unsigned int expect_pit_seq; unsigned int pit_remain_release_cnt; struct dpmaif_cur_rx_skb_info rx_data_info; struct napi_struct napi; bool sleep_lock_pending; }; struct dpmaif_tx_queue { unsigned int index; bool que_started; atomic_t tx_budget; void *drb_base; dma_addr_t drb_bus_addr; unsigned int drb_size_cnt; unsigned int drb_wr_idx; unsigned int drb_rd_idx; unsigned int drb_release_rd_idx; void *drb_skb_base; wait_queue_head_t req_wq; struct workqueue_struct *worker; struct work_struct dpmaif_tx_work; spinlock_t tx_lock; /* Protects txq DRB */ atomic_t tx_processing; struct dpmaif_ctrl *dpmaif_ctrl; struct sk_buff_head tx_skb_head; }; struct dpmaif_isr_para { struct dpmaif_ctrl *dpmaif_ctrl; unsigned char pcie_int; unsigned char dlq_id; }; enum dpmaif_state { DPMAIF_STATE_MIN, DPMAIF_STATE_PWROFF, DPMAIF_STATE_PWRON, DPMAIF_STATE_EXCEPTION, DPMAIF_STATE_MAX }; enum dpmaif_txq_state { DMPAIF_TXQ_STATE_IRQ, DMPAIF_TXQ_STATE_FULL, }; struct dpmaif_callbacks { void (*state_notify)(struct t7xx_pci_dev *t7xx_dev, enum dpmaif_txq_state state, int txq_number); void (*recv_skb)(struct t7xx_ccmni_ctrl *ccmni_ctlb, struct sk_buff *skb, struct napi_struct *napi); }; struct dpmaif_ctrl { struct device *dev; struct t7xx_pci_dev *t7xx_dev; struct md_pm_entity dpmaif_pm_entity; enum dpmaif_state state; bool dpmaif_sw_init_done; struct dpmaif_hw_info hw_info; struct dpmaif_tx_queue txq[DPMAIF_TXQ_NUM]; struct dpmaif_rx_queue rxq[DPMAIF_RXQ_NUM]; unsigned char rxq_int_mapping[DPMAIF_RXQ_NUM]; struct dpmaif_isr_para isr_para[DPMAIF_RXQ_NUM]; struct dpmaif_bat_request bat_req; struct dpmaif_bat_request bat_frag; struct workqueue_struct *bat_release_wq; struct work_struct bat_release_work; wait_queue_head_t tx_wq; struct task_struct *tx_thread; struct dpmaif_callbacks *callbacks; }; struct dpmaif_ctrl *t7xx_dpmaif_hif_init(struct t7xx_pci_dev *t7xx_dev, struct dpmaif_callbacks *callbacks); void t7xx_dpmaif_hif_exit(struct dpmaif_ctrl *dpmaif_ctrl); int t7xx_dpmaif_md_state_callback(struct dpmaif_ctrl *dpmaif_ctrl, enum md_state state); unsigned int t7xx_ring_buf_get_next_wr_idx(unsigned int buf_len, unsigned int buf_idx); unsigned int t7xx_ring_buf_rd_wr_count(unsigned int total_cnt, unsigned int rd_idx, unsigned int wr_idx, enum dpmaif_rdwr); #endif /* __T7XX_HIF_DPMAIF_H__ */

                                                                                                                                                                                                                                                                                                                                                                                                     

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