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 /* The USB role is defined by the connector used on the board, so long as
  11  * standards are being followed.  (Developer boards sometimes won't.)
  12  */
  13 enum musb_mode {
  14         MUSB_UNDEFINED = 0,
  15         MUSB_HOST,              /* A or Mini-A connector */
  16         MUSB_PERIPHERAL,        /* B or Mini-B connector */
  17         MUSB_OTG                /* Mini-AB connector */
  18 };
  19
  20 struct clk;
  21
  22 struct musb_hdrc_platform_data {
  23         /* MUSB_HOST, MUSB_PERIPHERAL, or MUSB_OTG */
  24         u8              mode;
  25
  26         /* for clk_get() */
  27         const char      *clock;
  28
  29         /* (HOST or OTG) switch VBUS on/off */
  30         int             (*set_vbus)(struct device *dev, int is_on);
  31
  32         /* (HOST or OTG) mA/2 power supplied on (default = 8mA) */
  33         u8              power;
  34
  35         /* (PERIPHERAL) mA/2 max power consumed (default = 100mA) */
  36         u8              min_power;
  37
  38         /* (HOST or OTG) msec/2 after VBUS on till power good */
  39         u8              potpgt;
  40
  41         /* TBD:  chip defaults should probably go someplace else,
  42          * e.g. number of tx/rx endpoints, etc
  43          */
  44         unsigned        multipoint:1;
  45
  46         /* Power the device on or off */
  47         int             (*set_power)(int state);
  48
  49         /* Turn device clock on or off */
  50         int             (*set_clock)(struct clk *clock, int is_on);
  51 };
  52
  53
  54 /* TUSB 6010 support */
  55
  56 #define TUSB6010_OSCCLK_60      16667   /* psec/clk @ 60.0 MHz */
  57 #define TUSB6010_REFCLK_24      41667   /* psec/clk @ 24.0 MHz XI */
  58 #define TUSB6010_REFCLK_19      52083   /* psec/clk @ 19.2 MHz CLKIN */
  59
  60 #ifdef  CONFIG_ARCH_OMAP2
  61
  62 extern int __init tusb6010_setup_interface(
  63                 struct musb_hdrc_platform_data *data,
  64                 unsigned ps_refclk, unsigned waitpin,
  65                 unsigned async_cs, unsigned sync_cs,
  66                 unsigned irq, unsigned dmachan);
  67
  68 extern int tusb6010_platform_retime(unsigned is_refclk);
  69
  70 #endif  /* OMAP2 */