| 1 | /* |
| 2 | * linux/drivers/usb/gadget/jz4740_udc.h |
| 3 | * |
| 4 | * Ingenic JZ4740 on-chip high speed USB device controller |
| 5 | * |
| 6 | * Copyright (C) 2006 Ingenic Semiconductor Inc. |
| 7 | * Author: <jlwei@ingenic.cn> |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | */ |
| 14 | |
| 15 | #ifndef __USB_GADGET_JZ4740_H__ |
| 16 | #define __USB_GADGET_JZ4740_H__ |
| 17 | |
| 18 | /*-------------------------------------------------------------------------*/ |
| 19 | |
| 20 | // Max packet size |
| 21 | #define EP0_MAXPACKETSIZE 64 |
| 22 | #define EPBULK_MAXPACKETSIZE 512 |
| 23 | #define EPINTR_MAXPACKETSIZE 64 |
| 24 | |
| 25 | #define UDC_MAX_ENDPOINTS 4 |
| 26 | |
| 27 | /*-------------------------------------------------------------------------*/ |
| 28 | |
| 29 | typedef enum ep_type { |
| 30 | ep_control, ep_bulk_in, ep_bulk_out, ep_interrupt |
| 31 | } ep_type_t; |
| 32 | |
| 33 | struct jz4740_ep { |
| 34 | struct usb_ep ep; |
| 35 | struct jz4740_udc *dev; |
| 36 | |
| 37 | const struct usb_endpoint_descriptor *desc; |
| 38 | unsigned long pio_irqs; |
| 39 | |
| 40 | uint8_t stopped; |
| 41 | uint8_t bEndpointAddress; |
| 42 | uint8_t bmAttributes; |
| 43 | |
| 44 | ep_type_t type; |
| 45 | size_t fifo; |
| 46 | u32 csr; |
| 47 | |
| 48 | uint32_t reg_addr; |
| 49 | struct list_head queue; |
| 50 | }; |
| 51 | |
| 52 | struct jz4740_request { |
| 53 | struct usb_request req; |
| 54 | struct list_head queue; |
| 55 | }; |
| 56 | |
| 57 | enum ep0state { |
| 58 | WAIT_FOR_SETUP, /* between STATUS ack and SETUP report */ |
| 59 | DATA_STATE_XMIT, /* data tx stage */ |
| 60 | DATA_STATE_NEED_ZLP, /* data tx zlp stage */ |
| 61 | WAIT_FOR_OUT_STATUS, /* status stages */ |
| 62 | DATA_STATE_RECV, /* data rx stage */ |
| 63 | }; |
| 64 | |
| 65 | /* For function binding with UDC Disable - Added by River */ |
| 66 | typedef enum { |
| 67 | UDC_STATE_ENABLE = 0, |
| 68 | UDC_STATE_DISABLE, |
| 69 | }udc_state_t; |
| 70 | |
| 71 | struct jz4740_udc { |
| 72 | struct usb_gadget gadget; |
| 73 | struct usb_gadget_driver *driver; |
| 74 | struct device *dev; |
| 75 | spinlock_t lock; |
| 76 | |
| 77 | enum ep0state ep0state; |
| 78 | struct jz4740_ep ep[UDC_MAX_ENDPOINTS]; |
| 79 | |
| 80 | unsigned char usb_address; |
| 81 | |
| 82 | udc_state_t state; |
| 83 | |
| 84 | struct resource *mem; |
| 85 | void __iomem *base; |
| 86 | int irq; |
| 87 | uint32_t in_mask; |
| 88 | uint32_t out_mask; |
| 89 | |
| 90 | struct clk *clk; |
| 91 | }; |
| 92 | |
| 93 | extern struct jz4740_udc *the_controller; |
| 94 | |
| 95 | #define ep_is_in(EP) (((EP)->bEndpointAddress&USB_DIR_IN)==USB_DIR_IN) |
| 96 | #define ep_maxpacket(EP) ((EP)->ep.maxpacket) |
| 97 | #define ep_index(EP) ((EP)->bEndpointAddress&0xF) |
| 98 | |
| 99 | #endif /* __USB_GADGET_JZ4740_H__ */ |
| 100 | |
