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150 lines
3.5 KiB
150 lines
3.5 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* This is used to for host and peripheral modes of the driver for |
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* Inventra (Multidrop) Highspeed Dual-Role Controllers: (M)HDRC. |
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* |
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* Board initialization should put one of these into dev->platform_data, |
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* probably on some platform_device named "musb-hdrc". It encapsulates |
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* key configuration differences between boards. |
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*/ |
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#ifndef __LINUX_USB_MUSB_H |
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#define __LINUX_USB_MUSB_H |
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/* The USB role is defined by the connector used on the board, so long as |
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* standards are being followed. (Developer boards sometimes won't.) |
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*/ |
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enum musb_mode { |
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MUSB_UNDEFINED = 0, |
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MUSB_HOST, /* A or Mini-A connector */ |
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MUSB_PERIPHERAL, /* B or Mini-B connector */ |
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MUSB_OTG /* Mini-AB connector */ |
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}; |
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struct clk; |
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enum musb_fifo_style { |
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FIFO_RXTX, |
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FIFO_TX, |
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FIFO_RX |
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} __attribute__ ((packed)); |
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enum musb_buf_mode { |
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BUF_SINGLE, |
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BUF_DOUBLE |
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} __attribute__ ((packed)); |
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struct musb_fifo_cfg { |
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u8 hw_ep_num; |
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enum musb_fifo_style style; |
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enum musb_buf_mode mode; |
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u16 maxpacket; |
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}; |
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#define MUSB_EP_FIFO(ep, st, m, pkt) \ |
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{ \ |
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.hw_ep_num = ep, \ |
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.style = st, \ |
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.mode = m, \ |
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.maxpacket = pkt, \ |
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} |
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#define MUSB_EP_FIFO_SINGLE(ep, st, pkt) \ |
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MUSB_EP_FIFO(ep, st, BUF_SINGLE, pkt) |
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#define MUSB_EP_FIFO_DOUBLE(ep, st, pkt) \ |
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MUSB_EP_FIFO(ep, st, BUF_DOUBLE, pkt) |
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struct musb_hdrc_eps_bits { |
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const char name[16]; |
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u8 bits; |
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}; |
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struct musb_hdrc_config { |
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struct musb_fifo_cfg *fifo_cfg; /* board fifo configuration */ |
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unsigned fifo_cfg_size; /* size of the fifo configuration */ |
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/* MUSB configuration-specific details */ |
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unsigned multipoint:1; /* multipoint device */ |
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unsigned dyn_fifo:1 __deprecated; /* supports dynamic fifo sizing */ |
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/* need to explicitly de-assert the port reset after resume? */ |
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unsigned host_port_deassert_reset_at_resume:1; |
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u8 num_eps; /* number of endpoints _with_ ep0 */ |
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u8 ram_bits; /* ram address size */ |
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u32 maximum_speed; |
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}; |
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struct musb_hdrc_platform_data { |
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/* MUSB_HOST, MUSB_PERIPHERAL, or MUSB_OTG */ |
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u8 mode; |
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/* for clk_get() */ |
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const char *clock; |
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/* (HOST or OTG) switch VBUS on/off */ |
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int (*set_vbus)(struct device *dev, int is_on); |
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/* (HOST or OTG) mA/2 power supplied on (default = 8mA) */ |
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u8 power; |
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/* (PERIPHERAL) mA/2 max power consumed (default = 100mA) */ |
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u8 min_power; |
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/* (HOST or OTG) msec/2 after VBUS on till power good */ |
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u8 potpgt; |
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/* (HOST or OTG) program PHY for external Vbus */ |
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unsigned extvbus:1; |
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/* Power the device on or off */ |
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int (*set_power)(int state); |
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/* MUSB configuration-specific details */ |
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const struct musb_hdrc_config *config; |
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/* Architecture specific board data */ |
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void *board_data; |
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/* Platform specific struct musb_ops pointer */ |
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const void *platform_ops; |
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}; |
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enum musb_vbus_id_status { |
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MUSB_UNKNOWN = 0, |
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MUSB_ID_GROUND, |
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MUSB_ID_FLOAT, |
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MUSB_VBUS_VALID, |
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MUSB_VBUS_OFF, |
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}; |
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#if IS_ENABLED(CONFIG_USB_MUSB_HDRC) |
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int musb_mailbox(enum musb_vbus_id_status status); |
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#else |
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static inline int musb_mailbox(enum musb_vbus_id_status status) |
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{ |
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return 0; |
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} |
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#endif |
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/* TUSB 6010 support */ |
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#define TUSB6010_OSCCLK_60 16667 /* psec/clk @ 60.0 MHz */ |
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#define TUSB6010_REFCLK_24 41667 /* psec/clk @ 24.0 MHz XI */ |
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#define TUSB6010_REFCLK_19 52083 /* psec/clk @ 19.2 MHz CLKIN */ |
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#ifdef CONFIG_ARCH_OMAP2 |
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extern int __init tusb6010_setup_interface( |
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struct musb_hdrc_platform_data *data, |
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unsigned ps_refclk, unsigned waitpin, |
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unsigned async_cs, unsigned sync_cs, |
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unsigned irq, unsigned dmachan); |
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extern int tusb6010_platform_retime(unsigned is_refclk); |
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#endif /* OMAP2 */ |
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#endif /* __LINUX_USB_MUSB_H */
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