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