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Linux/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         /* need to explicitly de-assert the port reset after resume? */
 80         unsigned        host_port_deassert_reset_at_resume:1;
 81 
 82         u8              num_eps;        /* number of endpoints _with_ ep0 */
 83         u8              dma_channels __deprecated; /* number of dma channels */
 84         u8              dyn_fifo_size;  /* dynamic size in bytes */
 85         u8              vendor_ctrl __deprecated; /* vendor control reg width */
 86         u8              vendor_stat __deprecated; /* vendor status reg witdh */
 87         u8              dma_req_chan __deprecated; /* bitmask for required dma channels */
 88         u8              ram_bits;       /* ram address size */
 89 
 90         struct musb_hdrc_eps_bits *eps_bits __deprecated;
 91 #ifdef CONFIG_BLACKFIN
 92         /* A GPIO controlling VRSEL in Blackfin */
 93         unsigned int    gpio_vrsel;
 94         unsigned int    gpio_vrsel_active;
 95         /* musb CLKIN in Blackfin in MHZ */
 96         unsigned char   clkin;
 97 #endif
 98 
 99 };
100 
101 struct musb_hdrc_platform_data {
102         /* MUSB_HOST, MUSB_PERIPHERAL, or MUSB_OTG */
103         u8              mode;
104 
105         /* for clk_get() */
106         const char      *clock;
107 
108         /* (HOST or OTG) switch VBUS on/off */
109         int             (*set_vbus)(struct device *dev, int is_on);
110 
111         /* (HOST or OTG) mA/2 power supplied on (default = 8mA) */
112         u8              power;
113 
114         /* (PERIPHERAL) mA/2 max power consumed (default = 100mA) */
115         u8              min_power;
116 
117         /* (HOST or OTG) msec/2 after VBUS on till power good */
118         u8              potpgt;
119 
120         /* (HOST or OTG) program PHY for external Vbus */
121         unsigned        extvbus:1;
122 
123         /* Power the device on or off */
124         int             (*set_power)(int state);
125 
126         /* MUSB configuration-specific details */
127         struct musb_hdrc_config *config;
128 
129         /* Architecture specific board data     */
130         void            *board_data;
131 
132         /* Platform specific struct musb_ops pointer */
133         const void      *platform_ops;
134 };
135 
136 
137 /* TUSB 6010 support */
138 
139 #define TUSB6010_OSCCLK_60      16667   /* psec/clk @ 60.0 MHz */
140 #define TUSB6010_REFCLK_24      41667   /* psec/clk @ 24.0 MHz XI */
141 #define TUSB6010_REFCLK_19      52083   /* psec/clk @ 19.2 MHz CLKIN */
142 
143 #ifdef  CONFIG_ARCH_OMAP2
144 
145 extern int __init tusb6010_setup_interface(
146                 struct musb_hdrc_platform_data *data,
147                 unsigned ps_refclk, unsigned waitpin,
148                 unsigned async_cs, unsigned sync_cs,
149                 unsigned irq, unsigned dmachan);
150 
151 extern int tusb6010_platform_retime(unsigned is_refclk);
152 
153 #endif  /* OMAP2 */
154 
155 #endif /* __LINUX_USB_MUSB_H */
156 

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