| Marek Vasut | 0b90750 | 2015-12-04 01:36:36 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * Samsung S3C on-chip full/high speed USB device controllers |
| 3 | * Copyright (C) 2005 for Samsung Electronics |
| 4 | * |
| 5 | * SPDX-License-Identifier: GPL-2.0+ |
| 6 | */ |
| 7 | |
| 8 | #ifndef __S3C_UDC_OTG_PRIV__ |
| 9 | #define __S3C_UDC_OTG_PRIV__ |
| 10 | |
| 11 | #include <asm/errno.h> |
| 12 | #include <linux/sizes.h> |
| 13 | #include <linux/usb/ch9.h> |
| 14 | #include <linux/usb/gadget.h> |
| 15 | #include <linux/list.h> |
| 16 | #include <usb/lin_gadget_compat.h> |
| 17 | #include <usb/s3c_udc.h> |
| 18 | |
| 19 | /*-------------------------------------------------------------------------*/ |
| 20 | /* DMA bounce buffer size, 16K is enough even for mass storage */ |
| 21 | #define DMA_BUFFER_SIZE (16*SZ_1K) |
| 22 | |
| 23 | #define EP0_FIFO_SIZE 64 |
| 24 | #define EP_FIFO_SIZE 512 |
| 25 | #define EP_FIFO_SIZE2 1024 |
| 26 | /* ep0-control, ep1in-bulk, ep2out-bulk, ep3in-int */ |
| 27 | #define S3C_MAX_ENDPOINTS 4 |
| 28 | #define S3C_MAX_HW_ENDPOINTS 16 |
| 29 | |
| 30 | #define WAIT_FOR_SETUP 0 |
| 31 | #define DATA_STATE_XMIT 1 |
| 32 | #define DATA_STATE_NEED_ZLP 2 |
| 33 | #define WAIT_FOR_OUT_STATUS 3 |
| 34 | #define DATA_STATE_RECV 4 |
| 35 | #define WAIT_FOR_COMPLETE 5 |
| 36 | #define WAIT_FOR_OUT_COMPLETE 6 |
| 37 | #define WAIT_FOR_IN_COMPLETE 7 |
| 38 | #define WAIT_FOR_NULL_COMPLETE 8 |
| 39 | |
| 40 | #define TEST_J_SEL 0x1 |
| 41 | #define TEST_K_SEL 0x2 |
| 42 | #define TEST_SE0_NAK_SEL 0x3 |
| 43 | #define TEST_PACKET_SEL 0x4 |
| 44 | #define TEST_FORCE_ENABLE_SEL 0x5 |
| 45 | |
| 46 | /* ************************************************************************* */ |
| 47 | /* IO |
| 48 | */ |
| 49 | |
| 50 | enum ep_type { |
| 51 | ep_control, ep_bulk_in, ep_bulk_out, ep_interrupt |
| 52 | }; |
| 53 | |
| 54 | struct s3c_ep { |
| 55 | struct usb_ep ep; |
| 56 | struct dwc2_udc *dev; |
| 57 | |
| 58 | const struct usb_endpoint_descriptor *desc; |
| 59 | struct list_head queue; |
| 60 | unsigned long pio_irqs; |
| 61 | int len; |
| 62 | void *dma_buf; |
| 63 | |
| 64 | u8 stopped; |
| 65 | u8 bEndpointAddress; |
| 66 | u8 bmAttributes; |
| 67 | |
| 68 | enum ep_type ep_type; |
| 69 | int fifo_num; |
| 70 | }; |
| 71 | |
| 72 | struct s3c_request { |
| 73 | struct usb_request req; |
| 74 | struct list_head queue; |
| 75 | }; |
| 76 | |
| 77 | struct dwc2_udc { |
| 78 | struct usb_gadget gadget; |
| 79 | struct usb_gadget_driver *driver; |
| 80 | |
| 81 | struct s3c_plat_otg_data *pdata; |
| 82 | |
| 83 | int ep0state; |
| 84 | struct s3c_ep ep[S3C_MAX_ENDPOINTS]; |
| 85 | |
| 86 | unsigned char usb_address; |
| 87 | |
| 88 | unsigned req_pending:1, req_std:1; |
| 89 | }; |
| 90 | |
| 91 | extern struct dwc2_udc *the_controller; |
| 92 | |
| 93 | #define ep_is_in(EP) (((EP)->bEndpointAddress&USB_DIR_IN) == USB_DIR_IN) |
| 94 | #define ep_index(EP) ((EP)->bEndpointAddress&0xF) |
| 95 | #define ep_maxpacket(EP) ((EP)->ep.maxpacket) |
| 96 | |
| 97 | extern void otg_phy_init(struct dwc2_udc *dev); |
| 98 | extern void otg_phy_off(struct dwc2_udc *dev); |
| 99 | |
| 100 | extern void s3c_udc_ep_set_stall(struct s3c_ep *ep); |
| 101 | |
| 102 | #endif /* __S3C_UDC_OTG_PRIV__ */ |