Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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 */
13enum 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
20struct clk;
21
22struct musb_hdrc_eps_bits {
23 const char name[16];
24 u8 bits;
25};
26
27struct musb_hdrc_config {
28 /* MUSB configuration-specific details */
29 unsigned multipoint:1; /* multipoint device */
30 unsigned dyn_fifo:1; /* supports dynamic fifo sizing */
31 unsigned soft_con:1; /* soft connect required */
32 unsigned utm_16:1; /* utm data witdh is 16 bits */
33 unsigned big_endian:1; /* true if CPU uses big-endian */
34 unsigned mult_bulk_tx:1; /* Tx ep required for multbulk pkts */
35 unsigned mult_bulk_rx:1; /* Rx ep required for multbulk pkts */
36 unsigned high_iso_tx:1; /* Tx ep required for HB iso */
37 unsigned high_iso_rx:1; /* Rx ep required for HD iso */
38 unsigned dma:1; /* supports DMA */
39 unsigned vendor_req:1; /* vendor registers required */
40
41 u8 num_eps; /* number of endpoints _with_ ep0 */
42 u8 dma_channels; /* number of dma channels */
43 u8 dyn_fifo_size; /* dynamic size in bytes */
44 u8 vendor_ctrl; /* vendor control reg width */
45 u8 vendor_stat; /* vendor status reg witdh */
46 u8 dma_req_chan; /* bitmask for required dma channels */
47 u8 ram_bits; /* ram address size */
48
49 struct musb_hdrc_eps_bits *eps_bits;
50};
51
52struct musb_hdrc_platform_data {
53 /* MUSB_HOST, MUSB_PERIPHERAL, or MUSB_OTG */
54 u8 mode;
55
56 /* for clk_get() */
57 const char *clock;
58
59 /* (HOST or OTG) switch VBUS on/off */
60 int (*set_vbus)(struct device *dev, int is_on);
61
62 /* (HOST or OTG) mA/2 power supplied on (default = 8mA) */
63 u8 power;
64
65 /* (PERIPHERAL) mA/2 max power consumed (default = 100mA) */
66 u8 min_power;
67
68 /* (HOST or OTG) msec/2 after VBUS on till power good */
69 u8 potpgt;
70
71 /* Power the device on or off */
72 int (*set_power)(int state);
73
74 /* Turn device clock on or off */
75 int (*set_clock)(struct clk *clock, int is_on);
76
77 /* MUSB configuration-specific details */
78 struct musb_hdrc_config *config;
79};
80
81
82/* TUSB 6010 support */
83
84#define TUSB6010_OSCCLK_60 16667 /* psec/clk @ 60.0 MHz */
85#define TUSB6010_REFCLK_24 41667 /* psec/clk @ 24.0 MHz XI */
86#define TUSB6010_REFCLK_19 52083 /* psec/clk @ 19.2 MHz CLKIN */
87
88#ifdef CONFIG_ARCH_OMAP2
89
90extern int __init tusb6010_setup_interface(
91 struct musb_hdrc_platform_data *data,
92 unsigned ps_refclk, unsigned waitpin,
93 unsigned async_cs, unsigned sync_cs,
94 unsigned irq, unsigned dmachan);
95
96extern int tusb6010_platform_retime(unsigned is_refclk);
97
98#endif /* OMAP2 */