LXR uboot/include/linux/usb/musb.h

   1/*
   2 * This is used to for host and peripheral modes of the driver for
   3 * Inventra (Multidrop) Highspeed Dual-Role Controllers:  (M)HDRC.
   4 *
   5 * Board initialization should put one of these into dev->platform_data,
   6 * probably on some platform_device named "musb-hdrc".  It encapsulates
   7 * key configuration differences between boards.
   8 */
   9
  10#ifndef __LINUX_USB_MUSB_H
  11#define __LINUX_USB_MUSB_H
  12
  13#ifndef __deprecated
  14#define __deprecated
  15#endif
  16
  17#include <linux/compat.h>
  18
  19/* The USB role is defined by the connector used on the board, so long as
  20 * standards are being followed.  (Developer boards sometimes won't.)
  21 */
  22enum musb_mode {
  23        MUSB_UNDEFINED = 0,
  24        MUSB_HOST,              /* A or Mini-A connector */
  25        MUSB_PERIPHERAL,        /* B or Mini-B connector */
  26        MUSB_OTG                /* Mini-AB connector */
  27};
  28
  29struct clk;
  30
  31enum musb_fifo_style {
  32        FIFO_RXTX,
  33        FIFO_TX,
  34        FIFO_RX
  35} __attribute__ ((packed));
  36
  37enum musb_buf_mode {
  38        BUF_SINGLE,
  39        BUF_DOUBLE
  40} __attribute__ ((packed));
  41
  42struct musb_fifo_cfg {
  43        u8                      hw_ep_num;
  44        enum musb_fifo_style    style;
  45        enum musb_buf_mode      mode;
  46        u16                     maxpacket;
  47};
  48
  49#define MUSB_EP_FIFO(ep, st, m, pkt)            \
  50{                                               \
  51        .hw_ep_num      = ep,                   \
  52        .style          = st,                   \
  53        .mode           = m,                    \
  54        .maxpacket      = pkt,                  \
  55}
  56
  57#define MUSB_EP_FIFO_SINGLE(ep, st, pkt)        \
  58        MUSB_EP_FIFO(ep, st, BUF_SINGLE, pkt)
  59
  60#define MUSB_EP_FIFO_DOUBLE(ep, st, pkt)        \
  61        MUSB_EP_FIFO(ep, st, BUF_DOUBLE, pkt)
  62
  63struct musb_hdrc_eps_bits {
  64        const char      name[16];
  65        u8              bits;
  66};
  67
  68struct musb_hdrc_config {
  69        struct musb_fifo_cfg    *fifo_cfg;      /* board fifo configuration */
  70        unsigned                fifo_cfg_size;  /* size of the fifo configuration */
  71
  72        /* MUSB configuration-specific details */
  73        unsigned        multipoint:1;   /* multipoint device */
  74        unsigned        dyn_fifo:1 __deprecated; /* supports dynamic fifo sizing */
  75        unsigned        soft_con:1 __deprecated; /* soft connect required */
  76        unsigned        utm_16:1 __deprecated; /* utm data witdh is 16 bits */
  77        unsigned        big_endian:1;   /* true if CPU uses big-endian */
  78        unsigned        mult_bulk_tx:1; /* Tx ep required for multbulk pkts */
  79        unsigned        mult_bulk_rx:1; /* Rx ep required for multbulk pkts */
  80        unsigned        high_iso_tx:1;  /* Tx ep required for HB iso */
  81        unsigned        high_iso_rx:1;  /* Rx ep required for HD iso */
  82        unsigned        dma:1 __deprecated; /* supports DMA */
  83        unsigned        vendor_req:1 __deprecated; /* vendor registers required */
  84
  85        u8              num_eps;        /* number of endpoints _with_ ep0 */
  86        u8              dma_channels __deprecated; /* number of dma channels */
  87        u8              dyn_fifo_size;  /* dynamic size in bytes */
  88        u8              vendor_ctrl __deprecated; /* vendor control reg width */
  89        u8              vendor_stat __deprecated; /* vendor status reg witdh */
  90        u8              dma_req_chan __deprecated; /* bitmask for required dma channels */
  91        u8              ram_bits;       /* ram address size */
  92
  93        struct musb_hdrc_eps_bits *eps_bits __deprecated;
  94#ifdef CONFIG_BLACKFIN
  95        /* A GPIO controlling VRSEL in Blackfin */
  96        unsigned int    gpio_vrsel;
  97        unsigned int    gpio_vrsel_active;
  98        /* musb CLKIN in Blackfin in MHZ */
  99        unsigned char   clkin;
 100#endif
 101
 102};
 103
 104struct musb_hdrc_platform_data {
 105        /* MUSB_HOST, MUSB_PERIPHERAL, or MUSB_OTG */
 106        u8              mode;
 107
 108        /* for clk_get() */
 109        const char      *clock;
 110
 111        /* (HOST or OTG) switch VBUS on/off */
 112        int             (*set_vbus)(struct device *dev, int is_on);
 113
 114        /* (HOST or OTG) mA/2 power supplied on (default = 8mA) */
 115        u8              power;
 116
 117        /* (PERIPHERAL) mA/2 max power consumed (default = 100mA) */
 118        u8              min_power;
 119
 120        /* (HOST or OTG) msec/2 after VBUS on till power good */
 121        u8              potpgt;
 122
 123        /* (HOST or OTG) program PHY for external Vbus */
 124        unsigned        extvbus:1;
 125
 126        /* Power the device on or off */
 127        int             (*set_power)(int state);
 128
 129        /* MUSB configuration-specific details */
 130        struct musb_hdrc_config *config;
 131
 132        /* Architecture specific board data     */
 133        void            *board_data;
 134
 135        /* Platform specific struct musb_ops pointer */
 136        const void      *platform_ops;
 137};
 138
 139
 140/* TUSB 6010 support */
 141
 142#define TUSB6010_OSCCLK_60      16667   /* psec/clk @ 60.0 MHz */
 143#define TUSB6010_REFCLK_24      41667   /* psec/clk @ 24.0 MHz XI */
 144#define TUSB6010_REFCLK_19      52083   /* psec/clk @ 19.2 MHz CLKIN */
 145
 146#ifdef  CONFIG_ARCH_OMAP2
 147
 148extern int __init tusb6010_setup_interface(
 149                struct musb_hdrc_platform_data *data,
 150                unsigned ps_refclk, unsigned waitpin,
 151                unsigned async_cs, unsigned sync_cs,
 152                unsigned irq, unsigned dmachan);
 153
 154extern int tusb6010_platform_retime(unsigned is_refclk);
 155
 156#endif  /* OMAP2 */
 157
 158/*
 159 * U-Boot specfic stuff
 160 */
 161int musb_register(struct musb_hdrc_platform_data *plat, void *bdata,
 162                        void *ctl_regs);
 163
 164#endif /* __LINUX_USB_MUSB_H */
 165