include/usb/spr_udc.h

   1 /*
   2  * (C) Copyright 2009
   3  * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #ifndef __SPR_UDC_H
  25 #define __SPR_UDC_H
  26
  27 /*
  28  * Defines for  USBD
  29  *
  30  * The udc_ahb controller has three AHB slaves:
  31  *
  32  * 1.  THe UDC registers
  33  * 2.  The plug detect
  34  * 3.  The RX/TX FIFO
  35  */
  36
  37 #define MAX_ENDPOINTS           16
  38
  39 struct udc_endp_regs {
  40         u32 endp_cntl;
  41         u32 endp_status;
  42         u32 endp_bsorfn;
  43         u32 endp_maxpacksize;
  44         u32 reserved_1;
  45         u32 endp_desc_point;
  46         u32 reserved_2;
  47         u32 write_done;
  48 };
  49
  50 /* Endpoint Control Register definitions */
  51
  52 #define  ENDP_CNTL_STALL                0x00000001
  53 #define  ENDP_CNTL_FLUSH                0x00000002
  54 #define  ENDP_CNTL_SNOOP                0x00000004
  55 #define  ENDP_CNTL_POLL                 0x00000008
  56 #define  ENDP_CNTL_CONTROL              0x00000000
  57 #define  ENDP_CNTL_ISO                  0x00000010
  58 #define  ENDP_CNTL_BULK                 0x00000020
  59 #define  ENDP_CNTL_INT                  0x00000030
  60 #define  ENDP_CNTL_NAK                  0x00000040
  61 #define  ENDP_CNTL_SNAK                 0x00000080
  62 #define  ENDP_CNTL_CNAK                 0x00000100
  63 #define  ENDP_CNTL_RRDY                 0x00000200
  64
  65 /* Endpoint Satus Register definitions */
  66
  67 #define  ENDP_STATUS_PIDMSK             0x0000000f
  68 #define  ENDP_STATUS_OUTMSK             0x00000030
  69 #define  ENDP_STATUS_OUT_NONE           0x00000000
  70 #define  ENDP_STATUS_OUT_DATA           0x00000010
  71 #define  ENDP_STATUS_OUT_SETUP          0x00000020
  72 #define  ENDP_STATUS_IN                 0x00000040
  73 #define  ENDP_STATUS_BUFFNAV            0x00000080
  74 #define  ENDP_STATUS_FATERR             0x00000100
  75 #define  ENDP_STATUS_HOSTBUSERR         0x00000200
  76 #define  ENDP_STATUS_TDC                0x00000400
  77 #define  ENDP_STATUS_RXPKTMSK           0x003ff800
  78
  79 struct udc_regs {
  80         struct udc_endp_regs in_regs[MAX_ENDPOINTS];
  81         struct udc_endp_regs out_regs[MAX_ENDPOINTS];
  82         u32 dev_conf;
  83         u32 dev_cntl;
  84         u32 dev_stat;
  85         u32 dev_int;
  86         u32 dev_int_mask;
  87         u32 endp_int;
  88         u32 endp_int_mask;
  89         u32 reserved_3[0x39];
  90         u32 reserved_4;         /* offset 0x500 */
  91         u32 udc_endp_reg[MAX_ENDPOINTS];
  92 };
  93
  94 /* Device Configuration Register definitions */
  95
  96 #define  DEV_CONF_HS_SPEED              0x00000000
  97 #define  DEV_CONF_LS_SPEED              0x00000002
  98 #define  DEV_CONF_FS_SPEED              0x00000003
  99 #define  DEV_CONF_REMWAKEUP             0x00000004
 100 #define  DEV_CONF_SELFPOW               0x00000008
 101 #define  DEV_CONF_SYNCFRAME             0x00000010
 102 #define  DEV_CONF_PHYINT_8              0x00000020
 103 #define  DEV_CONF_PHYINT_16             0x00000000
 104 #define  DEV_CONF_UTMI_BIDIR            0x00000040
 105 #define  DEV_CONF_STATUS_STALL          0x00000080
 106
 107 /* Device Control Register definitions */
 108
 109 #define  DEV_CNTL_RESUME                0x00000001
 110 #define  DEV_CNTL_TFFLUSH               0x00000002
 111 #define  DEV_CNTL_RXDMAEN               0x00000004
 112 #define  DEV_CNTL_TXDMAEN               0x00000008
 113 #define  DEV_CNTL_DESCRUPD              0x00000010
 114 #define  DEV_CNTL_BIGEND                0x00000020
 115 #define  DEV_CNTL_BUFFILL               0x00000040
 116 #define  DEV_CNTL_TSHLDEN               0x00000080
 117 #define  DEV_CNTL_BURSTEN               0x00000100
 118 #define  DEV_CNTL_DMAMODE               0x00000200
 119 #define  DEV_CNTL_SOFTDISCONNECT        0x00000400
 120 #define  DEV_CNTL_SCALEDOWN             0x00000800
 121 #define  DEV_CNTL_BURSTLENU             0x00010000
 122 #define  DEV_CNTL_BURSTLENMSK           0x00ff0000
 123 #define  DEV_CNTL_TSHLDLENU             0x01000000
 124 #define  DEV_CNTL_TSHLDLENMSK           0xff000000
 125
 126 /* Device Status Register definitions */
 127
 128 #define  DEV_STAT_CFG                   0x0000000f
 129 #define  DEV_STAT_INTF                  0x000000f0
 130 #define  DEV_STAT_ALT                   0x00000f00
 131 #define  DEV_STAT_SUSP                  0x00001000
 132 #define  DEV_STAT_ENUM                  0x00006000
 133 #define  DEV_STAT_ENUM_SPEED_HS         0x00000000
 134 #define  DEV_STAT_ENUM_SPEED_FS         0x00002000
 135 #define  DEV_STAT_ENUM_SPEED_LS         0x00004000
 136 #define  DEV_STAT_RXFIFO_EMPTY          0x00008000
 137 #define  DEV_STAT_PHY_ERR               0x00010000
 138 #define  DEV_STAT_TS                    0xf0000000
 139
 140 /* Device Interrupt Register definitions */
 141
 142 #define  DEV_INT_MSK                    0x0000007f
 143 #define  DEV_INT_SETCFG                 0x00000001
 144 #define  DEV_INT_SETINTF                0x00000002
 145 #define  DEV_INT_INACTIVE               0x00000004
 146 #define  DEV_INT_USBRESET               0x00000008
 147 #define  DEV_INT_SUSPUSB                0x00000010
 148 #define  DEV_INT_SOF                    0x00000020
 149 #define  DEV_INT_ENUM                   0x00000040
 150
 151 /* Endpoint Interrupt Register definitions */
 152
 153 #define  ENDP0_INT_CTRLIN               0x00000001
 154 #define  ENDP1_INT_BULKIN               0x00000002
 155 #define  ENDP_INT_NONISOIN_MSK          0x0000AAAA
 156 #define  ENDP2_INT_BULKIN               0x00000004
 157 #define  ENDP0_INT_CTRLOUT              0x00010000
 158 #define  ENDP1_INT_BULKOUT              0x00020000
 159 #define  ENDP2_INT_BULKOUT              0x00040000
 160 #define  ENDP_INT_NONISOOUT_MSK         0x55540000
 161
 162 /* Endpoint Register definitions */
 163 #define  ENDP_EPDIR_OUT                 0x00000000
 164 #define  ENDP_EPDIR_IN                  0x00000010
 165 #define  ENDP_EPTYPE_CNTL               0x0
 166 #define  ENDP_EPTYPE_ISO                0x1
 167 #define  ENDP_EPTYPE_BULK               0x2
 168 #define  ENDP_EPTYPE_INT                0x3
 169
 170 /*
 171  * Defines for Plug Detect
 172  */
 173
 174 struct plug_regs {
 175         u32 plug_state;
 176         u32 plug_pending;
 177 };
 178
 179 /* Plug State Register definitions */
 180 #define  PLUG_STATUS_EN                 0x1
 181 #define  PLUG_STATUS_ATTACHED           0x2
 182 #define  PLUG_STATUS_PHY_RESET          0x4
 183 #define  PLUG_STATUS_PHY_MODE           0x8
 184
 185 /*
 186  * Defines for UDC FIFO (Slave Mode)
 187  */
 188 struct udcfifo_regs {
 189         u32 *fifo_p;
 190 };
 191
 192 /*
 193  * USBTTY definitions
 194  */
 195 #define  EP0_MAX_PACKET_SIZE            64
 196 #define  UDC_INT_ENDPOINT               1
 197 #define  UDC_INT_PACKET_SIZE            64
 198 #define  UDC_OUT_ENDPOINT               2
 199 #define  UDC_BULK_PACKET_SIZE           64
 200 #define  UDC_IN_ENDPOINT                3
 201 #define  UDC_OUT_PACKET_SIZE            64
 202 #define  UDC_IN_PACKET_SIZE             64
 203
 204 /*
 205  * UDC endpoint definitions
 206  */
 207 #define  UDC_EP0                        0
 208 #define  UDC_EP1                        1
 209 #define  UDC_EP2                        2
 210 #define  UDC_EP3                        3
 211
 212 /*
 213  * Function declarations
 214  */
 215
 216 void udc_irq(void);
 217
 218 void udc_set_nak(int epid);
 219 void udc_unset_nak(int epid);
 220 int udc_endpoint_write(struct usb_endpoint_instance *endpoint);
 221 int udc_init(void);
 222 void udc_enable(struct usb_device_instance *device);
 223 void udc_disable(void);
 224 void udc_connect(void);
 225 void udc_disconnect(void);
 226 void udc_startup_events(struct usb_device_instance *device);
 227 void udc_setup_ep(struct usb_device_instance *device, unsigned int ep,
 228                   struct usb_endpoint_instance *endpoint);
 229
 230 #endif /* __SPR_UDC_H */