include/usb/s3c_udc.h

   1 /*
   2  * drivers/usb/gadget/s3c_udc.h
   3  * Samsung S3C on-chip full/high speed USB device controllers
   4  * Copyright (C) 2005 for Samsung Electronics
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #ifndef __S3C_USB_GADGET
  23 #define __S3C_USB_GADGET
  24
  25 #include <asm/errno.h>
  26 #include <linux/usb/ch9.h>
  27 #include <usbdescriptors.h>
  28 #include <linux/usb/gadget.h>
  29 #include <linux/list.h>
  30 #include <usb/lin_gadget_compat.h>
  31
  32 #define PHY0_SLEEP              (1 << 5)
  33
  34 /*-------------------------------------------------------------------------*/
  35 /* DMA bounce buffer size, 16K is enough even for mass storage */
  36 #define DMA_BUFFER_SIZE (4096*4)
  37
  38 #define EP0_FIFO_SIZE           64
  39 #define EP_FIFO_SIZE            512
  40 #define EP_FIFO_SIZE2           1024
  41 /* ep0-control, ep1in-bulk, ep2out-bulk, ep3in-int */
  42 #define S3C_MAX_ENDPOINTS       4
  43 #define S3C_MAX_HW_ENDPOINTS    16
  44
  45 #define WAIT_FOR_SETUP          0
  46 #define DATA_STATE_XMIT         1
  47 #define DATA_STATE_NEED_ZLP     2
  48 #define WAIT_FOR_OUT_STATUS     3
  49 #define DATA_STATE_RECV         4
  50 #define WAIT_FOR_COMPLETE       5
  51 #define WAIT_FOR_OUT_COMPLETE   6
  52 #define WAIT_FOR_IN_COMPLETE    7
  53 #define WAIT_FOR_NULL_COMPLETE  8
  54
  55 #define TEST_J_SEL              0x1
  56 #define TEST_K_SEL              0x2
  57 #define TEST_SE0_NAK_SEL        0x3
  58 #define TEST_PACKET_SEL         0x4
  59 #define TEST_FORCE_ENABLE_SEL   0x5
  60
  61 /* ************************************************************************* */
  62 /* IO
  63  */
  64
  65 enum ep_type {
  66         ep_control, ep_bulk_in, ep_bulk_out, ep_interrupt
  67 };
  68
  69 struct s3c_ep {
  70         struct usb_ep ep;
  71         struct s3c_udc *dev;
  72
  73         const struct usb_endpoint_descriptor *desc;
  74         struct list_head queue;
  75         unsigned long pio_irqs;
  76         int len;
  77         void *dma_buf;
  78
  79         u8 stopped;
  80         u8 bEndpointAddress;
  81         u8 bmAttributes;
  82
  83         enum ep_type ep_type;
  84         int fifo_num;
  85 };
  86
  87 struct s3c_request {
  88         struct usb_request req;
  89         struct list_head queue;
  90 };
  91
  92 struct s3c_udc {
  93         struct usb_gadget gadget;
  94         struct usb_gadget_driver *driver;
  95
  96         struct s3c_plat_otg_data *pdata;
  97
  98         void *dma_buf[S3C_MAX_ENDPOINTS+1];
  99         dma_addr_t dma_addr[S3C_MAX_ENDPOINTS+1];
 100
 101         int ep0state;
 102         struct s3c_ep ep[S3C_MAX_ENDPOINTS];
 103
 104         unsigned char usb_address;
 105
 106         unsigned req_pending:1, req_std:1;
 107 };
 108
 109 extern struct s3c_udc *the_controller;
 110
 111 #define ep_is_in(EP) (((EP)->bEndpointAddress&USB_DIR_IN) == USB_DIR_IN)
 112 #define ep_index(EP) ((EP)->bEndpointAddress&0xF)
 113 #define ep_maxpacket(EP) ((EP)->ep.maxpacket)
 114
 115 extern void otg_phy_init(struct s3c_udc *dev);
 116 extern void otg_phy_off(struct s3c_udc *dev);
 117
 118 extern void s3c_udc_ep_set_stall(struct s3c_ep *ep);
 119 extern int s3c_udc_probe(struct s3c_plat_otg_data *pdata);
 120
 121 struct s3c_plat_otg_data {
 122         int             (*phy_control)(int on);
 123         unsigned int    regs_phy;
 124         unsigned int    regs_otg;
 125         unsigned int    usb_phy_ctrl;
 126         unsigned int    usb_flags;
 127 };
 128 #endif