diff options
Diffstat (limited to 'drivers/usb/host/xhci-mtk.h')
| -rw-r--r-- | drivers/usb/host/xhci-mtk.h | 109 |
1 files changed, 60 insertions, 49 deletions
diff --git a/drivers/usb/host/xhci-mtk.h b/drivers/usb/host/xhci-mtk.h index 8be8c5f7ff62..2274f5995171 100644 --- a/drivers/usb/host/xhci-mtk.h +++ b/drivers/usb/host/xhci-mtk.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (c) 2015 MediaTek Inc. * Author: @@ -9,56 +9,77 @@ #ifndef _XHCI_MTK_H_ #define _XHCI_MTK_H_ +#include <linux/clk.h> +#include <linux/hashtable.h> +#include <linux/regulator/consumer.h> + #include "xhci.h" -/** +#define BULK_CLKS_NUM 6 +#define BULK_VREGS_NUM 2 + +/* support at most 64 ep, use 32 size hash table */ +#define SCH_EP_HASH_BITS 5 + +/* * To simplify scheduler algorithm, set a upper limit for ESIT, * if a synchromous ep's ESIT is larger than @XHCI_MTK_MAX_ESIT, * round down to the limit value, that means allocating more * bandwidth to it. */ -#define XHCI_MTK_MAX_ESIT 64 +#define XHCI_MTK_MAX_ESIT (1 << 6) +#define XHCI_MTK_BW_INDEX(x) ((x) & (XHCI_MTK_MAX_ESIT - 1)) + +#define UFRAMES_PER_FRAME 8 +#define XHCI_MTK_FRAMES_CNT (XHCI_MTK_MAX_ESIT / UFRAMES_PER_FRAME) /** - * @split_bit_map: used to avoid split microframes overlay + * struct mu3h_sch_tt - TT scheduling data + * @fs_bus_bw_out: save bandwidth used by FS/LS OUT eps in each uframes + * @fs_bus_bw_in: save bandwidth used by FS/LS IN eps in each uframes + * @ls_bus_bw: save bandwidth used by LS eps in each uframes + * @fs_frame_bw: save bandwidth used by FS/LS eps in each FS frames + * @in_ss_cnt: the count of Start-Split for IN eps * @ep_list: Endpoints using this TT - * @usb_tt: usb TT related - * @tt_port: TT port number */ struct mu3h_sch_tt { - DECLARE_BITMAP(split_bit_map, XHCI_MTK_MAX_ESIT); + u16 fs_bus_bw_out[XHCI_MTK_MAX_ESIT]; + u16 fs_bus_bw_in[XHCI_MTK_MAX_ESIT]; + u8 ls_bus_bw[XHCI_MTK_MAX_ESIT]; + u16 fs_frame_bw[XHCI_MTK_FRAMES_CNT]; + u8 in_ss_cnt[XHCI_MTK_MAX_ESIT]; struct list_head ep_list; - struct usb_tt *usb_tt; - int tt_port; }; /** - * struct mu3h_sch_bw_info: schedule information for bandwidth domain + * struct mu3h_sch_bw_info - schedule information for bandwidth domain * * @bus_bw: array to keep track of bandwidth already used at each uframes - * @bw_ep_list: eps in the bandwidth domain * * treat a HS root port as a bandwidth domain, but treat a SS root port as * two bandwidth domains, one for IN eps and another for OUT eps. */ struct mu3h_sch_bw_info { u32 bus_bw[XHCI_MTK_MAX_ESIT]; - struct list_head bw_ep_list; }; /** - * struct mu3h_sch_ep_info: schedule information for endpoint + * struct mu3h_sch_ep_info - schedule information for endpoint * * @esit: unit is 125us, equal to 2 << Interval field in ep-context + * @num_esit: number of @esit in a period * @num_budget_microframes: number of continuous uframes * (@repeat==1) scheduled within the interval - * @bw_cost_per_microframe: bandwidth cost per microframe + * @hentry: hash table entry * @endpoint: linked into bandwidth domain which it belongs to * @tt_endpoint: linked into mu3h_sch_tt's list which it belongs to + * @bw_info: bandwidth domain which this endpoint belongs * @sch_tt: mu3h_sch_tt linked into * @ep_type: endpoint type * @maxpkt: max packet size of endpoint * @ep: address of usb_host_endpoint struct + * @speed: usb device speed + * @allocated: the bandwidth is aready allocated from bus_bw * @offset: which uframe of the interval that transfer should be * scheduled first time within the interval * @repeat: the time gap between two uframes that transfers are @@ -78,14 +99,18 @@ struct mu3h_sch_bw_info { */ struct mu3h_sch_ep_info { u32 esit; + u32 num_esit; u32 num_budget_microframes; - u32 bw_cost_per_microframe; struct list_head endpoint; + struct hlist_node hentry; struct list_head tt_endpoint; + struct mu3h_sch_bw_info *bw_info; struct mu3h_sch_tt *sch_tt; u32 ep_type; u32 maxpkt; - void *ep; + struct usb_host_endpoint *ep; + enum usb_device_speed speed; + bool allocated; /* * mtk xHCI scheduling information put into reserved DWs * in ep context @@ -95,14 +120,14 @@ struct mu3h_sch_ep_info { u32 pkts; u32 cs_count; u32 burst_mode; - u32 bw_budget_table[0]; + u32 bw_budget_table[]; }; #define MU3C_U3_PORT_MAX 4 #define MU3C_U2_PORT_MAX 5 /** - * struct mu3c_ippc_regs: MTK ssusb ip port control registers + * struct mu3c_ippc_regs - MTK ssusb ip port control registers * @ip_pw_ctr0~3: ip power and clock control registers * @ip_pw_sts1~2: ip power and clock status registers * @ip_xhci_cap: ip xHCI capability register @@ -131,26 +156,25 @@ struct xhci_hcd_mtk { struct device *dev; struct usb_hcd *hcd; struct mu3h_sch_bw_info *sch_array; + struct list_head bw_ep_chk_list; + DECLARE_HASHTABLE(sch_ep_hash, SCH_EP_HASH_BITS); struct mu3c_ippc_regs __iomem *ippc_regs; - bool has_ippc; int num_u2_ports; int num_u3_ports; + int u2p_dis_msk; int u3p_dis_msk; - struct regulator *vusb33; - struct regulator *vbus; - struct clk *sys_clk; /* sys and mac clock */ - struct clk *ref_clk; - struct clk *mcu_clk; - struct clk *dma_clk; - struct regmap *pericfg; - struct phy **phys; - int num_phys; - bool lpm_support; + struct clk_bulk_data clks[BULK_CLKS_NUM]; + struct regulator_bulk_data supplies[BULK_VREGS_NUM]; + unsigned int has_ippc:1; + unsigned int lpm_support:1; + unsigned int u2_lpm_disable:1; /* usb remote wakeup */ - bool uwk_en; + unsigned int uwk_en:1; struct regmap *uwk; u32 uwk_reg_base; u32 uwk_vers; + /* quirk */ + u32 rxfifo_depth; }; static inline struct xhci_hcd_mtk *hcd_to_mtk(struct usb_hcd *hcd) @@ -158,26 +182,13 @@ static inline struct xhci_hcd_mtk *hcd_to_mtk(struct usb_hcd *hcd) return dev_get_drvdata(hcd->self.controller); } -#if IS_ENABLED(CONFIG_USB_XHCI_MTK) int xhci_mtk_sch_init(struct xhci_hcd_mtk *mtk); void xhci_mtk_sch_exit(struct xhci_hcd_mtk *mtk); -int xhci_mtk_add_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev, - struct usb_host_endpoint *ep); -void xhci_mtk_drop_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev, - struct usb_host_endpoint *ep); - -#else -static inline int xhci_mtk_add_ep_quirk(struct usb_hcd *hcd, - struct usb_device *udev, struct usb_host_endpoint *ep) -{ - return 0; -} - -static inline void xhci_mtk_drop_ep_quirk(struct usb_hcd *hcd, - struct usb_device *udev, struct usb_host_endpoint *ep) -{ -} - -#endif +int xhci_mtk_add_ep(struct usb_hcd *hcd, struct usb_device *udev, + struct usb_host_endpoint *ep); +int xhci_mtk_drop_ep(struct usb_hcd *hcd, struct usb_device *udev, + struct usb_host_endpoint *ep); +int xhci_mtk_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev); +void xhci_mtk_reset_bandwidth(struct usb_hcd *hcd, struct usb_device *udev); #endif /* _XHCI_MTK_H_ */ |