drivers/usb/otg/mv_otg.h

   1 /*
   2  * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
   3  *
   4  * This program is free software; you can redistribute  it and/or modify it
   5  * under  the terms of  the GNU General  Public License as published by the
   6  * Free Software Foundation;  either version 2 of the  License, or (at your
   7  * option) any later version.
   8  */
   9
  10 #ifndef __MV_USB_OTG_CONTROLLER__
  11 #define __MV_USB_OTG_CONTROLLER__
  12
  13 #include <linux/types.h>
  14
  15 /* Command Register Bit Masks */
  16 #define USBCMD_RUN_STOP                 (0x00000001)
  17 #define USBCMD_CTRL_RESET               (0x00000002)
  18
  19 /* otgsc Register Bit Masks */
  20 #define OTGSC_CTRL_VUSB_DISCHARGE               0x00000001
  21 #define OTGSC_CTRL_VUSB_CHARGE                  0x00000002
  22 #define OTGSC_CTRL_OTG_TERM                     0x00000008
  23 #define OTGSC_CTRL_DATA_PULSING                 0x00000010
  24 #define OTGSC_STS_USB_ID                        0x00000100
  25 #define OTGSC_STS_A_VBUS_VALID                  0x00000200
  26 #define OTGSC_STS_A_SESSION_VALID               0x00000400
  27 #define OTGSC_STS_B_SESSION_VALID               0x00000800
  28 #define OTGSC_STS_B_SESSION_END                 0x00001000
  29 #define OTGSC_STS_1MS_TOGGLE                    0x00002000
  30 #define OTGSC_STS_DATA_PULSING                  0x00004000
  31 #define OTGSC_INTSTS_USB_ID                     0x00010000
  32 #define OTGSC_INTSTS_A_VBUS_VALID               0x00020000
  33 #define OTGSC_INTSTS_A_SESSION_VALID            0x00040000
  34 #define OTGSC_INTSTS_B_SESSION_VALID            0x00080000
  35 #define OTGSC_INTSTS_B_SESSION_END              0x00100000
  36 #define OTGSC_INTSTS_1MS                        0x00200000
  37 #define OTGSC_INTSTS_DATA_PULSING               0x00400000
  38 #define OTGSC_INTR_USB_ID                       0x01000000
  39 #define OTGSC_INTR_A_VBUS_VALID                 0x02000000
  40 #define OTGSC_INTR_A_SESSION_VALID              0x04000000
  41 #define OTGSC_INTR_B_SESSION_VALID              0x08000000
  42 #define OTGSC_INTR_B_SESSION_END                0x10000000
  43 #define OTGSC_INTR_1MS_TIMER                    0x20000000
  44 #define OTGSC_INTR_DATA_PULSING                 0x40000000
  45
  46 #define CAPLENGTH_MASK          (0xff)
  47
  48 /* Timer's interval, unit 10ms */
  49 #define T_A_WAIT_VRISE          100
  50 #define T_A_WAIT_BCON           2000
  51 #define T_A_AIDL_BDIS           100
  52 #define T_A_BIDL_ADIS           20
  53 #define T_B_ASE0_BRST           400
  54 #define T_B_SE0_SRP             300
  55 #define T_B_SRP_FAIL            2000
  56 #define T_B_DATA_PLS            10
  57 #define T_B_SRP_INIT            100
  58 #define T_A_SRP_RSPNS           10
  59 #define T_A_DRV_RSM             5
  60
  61 enum otg_function {
  62         OTG_B_DEVICE = 0,
  63         OTG_A_DEVICE
  64 };
  65
  66 enum mv_otg_timer {
  67         A_WAIT_BCON_TIMER = 0,
  68         OTG_TIMER_NUM
  69 };
  70
  71 /* PXA OTG state machine */
  72 struct mv_otg_ctrl {
  73         /* internal variables */
  74         u8 a_set_b_hnp_en;      /* A-Device set b_hnp_en */
  75         u8 b_srp_done;
  76         u8 b_hnp_en;
  77
  78         /* OTG inputs */
  79         u8 a_bus_drop;
  80         u8 a_bus_req;
  81         u8 a_clr_err;
  82         u8 a_bus_resume;
  83         u8 a_bus_suspend;
  84         u8 a_conn;
  85         u8 a_sess_vld;
  86         u8 a_srp_det;
  87         u8 a_vbus_vld;
  88         u8 b_bus_req;           /* B-Device Require Bus */
  89         u8 b_bus_resume;
  90         u8 b_bus_suspend;
  91         u8 b_conn;
  92         u8 b_se0_srp;
  93         u8 b_sess_end;
  94         u8 b_sess_vld;
  95         u8 id;
  96         u8 a_suspend_req;
  97
  98         /*Timer event */
  99         u8 a_aidl_bdis_timeout;
 100         u8 b_ase0_brst_timeout;
 101         u8 a_bidl_adis_timeout;
 102         u8 a_wait_bcon_timeout;
 103
 104         struct timer_list timer[OTG_TIMER_NUM];
 105 };
 106
 107 #define VUSBHS_MAX_PORTS        8
 108
 109 struct mv_otg_regs {
 110         u32 usbcmd;             /* Command register */
 111         u32 usbsts;             /* Status register */
 112         u32 usbintr;            /* Interrupt enable */
 113         u32 frindex;            /* Frame index */
 114         u32 reserved1[1];
 115         u32 deviceaddr;         /* Device Address */
 116         u32 eplistaddr;         /* Endpoint List Address */
 117         u32 ttctrl;             /* HOST TT status and control */
 118         u32 burstsize;          /* Programmable Burst Size */
 119         u32 txfilltuning;       /* Host Transmit Pre-Buffer Packet Tuning */
 120         u32 reserved[4];
 121         u32 epnak;              /* Endpoint NAK */
 122         u32 epnaken;            /* Endpoint NAK Enable */
 123         u32 configflag;         /* Configured Flag register */
 124         u32 portsc[VUSBHS_MAX_PORTS];   /* Port Status/Control x, x = 1..8 */
 125         u32 otgsc;
 126         u32 usbmode;            /* USB Host/Device mode */
 127         u32 epsetupstat;        /* Endpoint Setup Status */
 128         u32 epprime;            /* Endpoint Initialize */
 129         u32 epflush;            /* Endpoint De-initialize */
 130         u32 epstatus;           /* Endpoint Status */
 131         u32 epcomplete;         /* Endpoint Interrupt On Complete */
 132         u32 epctrlx[16];        /* Endpoint Control, where x = 0.. 15 */
 133         u32 mcr;                /* Mux Control */
 134         u32 isr;                /* Interrupt Status */
 135         u32 ier;                /* Interrupt Enable */
 136 };
 137
 138 struct mv_otg {
 139         struct otg_transceiver otg;
 140         struct mv_otg_ctrl otg_ctrl;
 141
 142         /* base address */
 143         void __iomem *phy_regs;
 144         void __iomem *cap_regs;
 145         struct mv_otg_regs __iomem *op_regs;
 146
 147         struct platform_device *pdev;
 148         int irq;
 149         u32 irq_status;
 150         u32 irq_en;
 151
 152         struct delayed_work work;
 153         struct workqueue_struct *qwork;
 154
 155         spinlock_t wq_lock;
 156
 157         struct mv_usb_platform_data *pdata;
 158
 159         unsigned int active;
 160         unsigned int clock_gating;
 161         unsigned int clknum;
 162         struct clk *clk[0];
 163 };
 164
 165 #endif