1 #ifndef __LINUX_ETRAX_USB_H 2 #define __LINUX_ETRAX_USB_H 3 4 #include <linux/types.h> 5 #include <linux/list.h> 6 7 typedef struct USB_IN_Desc { 8 volatile __u16 sw_len; 9 volatile __u16 command; 10 volatile unsigned long next; 11 volatile unsigned long buf; 12 volatile __u16 hw_len; 13 volatile __u16 status; 14 } USB_IN_Desc_t; 15 16 typedef struct USB_SB_Desc { 17 volatile __u16 sw_len; 18 volatile __u16 command; 19 volatile unsigned long next; 20 volatile unsigned long buf; 21 __u32 dummy; 22 } USB_SB_Desc_t; 23 24 typedef struct USB_EP_Desc { 25 volatile __u16 hw_len; 26 volatile __u16 command; 27 volatile unsigned long sub; 28 volatile unsigned long next; 29 __u32 dummy; 30 } USB_EP_Desc_t; 31 32 struct virt_root_hub { 33 int devnum; 34 void *urb; 35 void *int_addr; 36 int send; 37 int interval; 38 int numports; 39 struct timer_list rh_int_timer; 40 volatile __u16 wPortChange_1; 41 volatile __u16 wPortChange_2; 42 volatile __u16 prev_wPortStatus_1; 43 volatile __u16 prev_wPortStatus_2; 44 }; 45 46 struct etrax_usb_intr_traffic { 47 int sleeping; 48 int error; 49 struct wait_queue *wq; 50 }; 51 52 typedef struct etrax_usb_hc { 53 struct usb_bus *bus; 54 struct virt_root_hub rh; 55 struct etrax_usb_intr_traffic intr; 56 } etrax_hc_t; 57 58 typedef enum { 59 STARTED, 60 NOT_STARTED, 61 UNLINK 62 } etrax_usb_urb_state_t; 63 64 65 66 typedef struct etrax_usb_urb_priv { 67 /* The first_sb field is used for freeing all SB descriptors belonging 68 to an urb. The corresponding ep descriptor's sub pointer cannot be 69 used for this since the DMA advances the sub pointer as it processes 70 the sb list. */ 71 USB_SB_Desc_t *first_sb; 72 /* The last_sb field referes to the last SB descriptor that belongs to 73 this urb. This is important to know so we can free the SB descriptors 74 that ranges between first_sb and last_sb. */ 75 USB_SB_Desc_t *last_sb; 76 77 /* The rx_offset field is used in ctrl and bulk traffic to keep track 78 of the offset in the urb's transfer_buffer where incoming data should be 79 copied to. */ 80 __u32 rx_offset; 81 82 /* Counter used in isochronous transfers to keep track of the 83 number of packets received/transmitted. */ 84 __u32 isoc_packet_counter; 85 86 /* This field is used to pass information about the urb's current state between 87 the various interrupt handlers (thus marked volatile). */ 88 volatile etrax_usb_urb_state_t urb_state; 89 90 /* Connection between the submitted urb and ETRAX epid number */ 91 __u8 epid; 92 93 /* The rx_data_list field is used for periodic traffic, to hold 94 received data for later processing in the the complete_urb functions, 95 where the data us copied to the urb's transfer_buffer. Basically, we 96 use this intermediate storage because we don't know when it's safe to 97 reuse the transfer_buffer (FIXME?). */ 98 struct list_head rx_data_list; 99 } etrax_urb_priv_t; 100 101 /* This struct is for passing data from the top half to the bottom half. */ 102 typedef struct usb_interrupt_registers 103 { 104 etrax_hc_t *hc; 105 __u32 r_usb_epid_attn; 106 __u8 r_usb_status; 107 __u16 r_usb_rh_port_status_1; 108 __u16 r_usb_rh_port_status_2; 109 __u32 r_usb_irq_mask_read; 110 __u32 r_usb_fm_number; 111 struct tq_struct usb_bh; 112 } usb_interrupt_registers_t; 113 114 /* This struct holds data we get from the rx descriptors for DMA channel 9 115 for periodic traffic (intr and isoc). */ 116 typedef struct rx_data 117 { 118 void *data; 119 int length; 120 struct list_head list; 121 } rx_data_t; 122 123 typedef struct urb_entry 124 { 125 urb_t *urb; 126 struct list_head list; 127 } urb_entry_t; 128 129 /* --------------------------------------------------------------------------- 130 Virtual Root HUB 131 ------------------------------------------------------------------------- */ 132 /* destination of request */ 133 #define RH_INTERFACE 0x01 134 #define RH_ENDPOINT 0x02 135 #define RH_OTHER 0x03 136 137 #define RH_CLASS 0x20 138 #define RH_VENDOR 0x40 139 140 /* Requests: bRequest << 8 | bmRequestType */ 141 #define RH_GET_STATUS 0x0080 142 #define RH_CLEAR_FEATURE 0x0100 143 #define RH_SET_FEATURE 0x0300 144 #define RH_SET_ADDRESS 0x0500 145 #define RH_GET_DESCRIPTOR 0x0680 146 #define RH_SET_DESCRIPTOR 0x0700 147 #define RH_GET_CONFIGURATION 0x0880 148 #define RH_SET_CONFIGURATION 0x0900 149 #define RH_GET_STATE 0x0280 150 #define RH_GET_INTERFACE 0x0A80 151 #define RH_SET_INTERFACE 0x0B00 152 #define RH_SYNC_FRAME 0x0C80 153 /* Our Vendor Specific Request */ 154 #define RH_SET_EP 0x2000 155 156 157 /* Hub port features */ 158 #define RH_PORT_CONNECTION 0x00 159 #define RH_PORT_ENABLE 0x01 160 #define RH_PORT_SUSPEND 0x02 161 #define RH_PORT_OVER_CURRENT 0x03 162 #define RH_PORT_RESET 0x04 163 #define RH_PORT_POWER 0x08 164 #define RH_PORT_LOW_SPEED 0x09 165 #define RH_C_PORT_CONNECTION 0x10 166 #define RH_C_PORT_ENABLE 0x11 167 #define RH_C_PORT_SUSPEND 0x12 168 #define RH_C_PORT_OVER_CURRENT 0x13 169 #define RH_C_PORT_RESET 0x14 170 171 /* Hub features */ 172 #define RH_C_HUB_LOCAL_POWER 0x00 173 #define RH_C_HUB_OVER_CURRENT 0x01 174 175 #define RH_DEVICE_REMOTE_WAKEUP 0x00 176 #define RH_ENDPOINT_STALL 0x01 177 178 /* Our Vendor Specific feature */ 179 #define RH_REMOVE_EP 0x00 180 181 182 #define RH_ACK 0x01 183 #define RH_REQ_ERR -1 184 #define RH_NACK 0x00 185 186 /* Field definitions for */ 187 188 #define USB_IN_command__eol__BITNR 0 /* command macros */ 189 #define USB_IN_command__eol__WIDTH 1 190 #define USB_IN_command__eol__no 0 191 #define USB_IN_command__eol__yes 1 192 193 #define USB_IN_command__intr__BITNR 3 194 #define USB_IN_command__intr__WIDTH 1 195 #define USB_IN_command__intr__no 0 196 #define USB_IN_command__intr__yes 1 197 198 #define USB_IN_status__eop__BITNR 1 /* status macros. */ 199 #define USB_IN_status__eop__WIDTH 1 200 #define USB_IN_status__eop__no 0 201 #define USB_IN_status__eop__yes 1 202 203 #define USB_IN_status__eot__BITNR 5 204 #define USB_IN_status__eot__WIDTH 1 205 #define USB_IN_status__eot__no 0 206 #define USB_IN_status__eot__yes 1 207 208 #define USB_IN_status__error__BITNR 6 209 #define USB_IN_status__error__WIDTH 1 210 #define USB_IN_status__error__no 0 211 #define USB_IN_status__error__yes 1 212 213 #define USB_IN_status__nodata__BITNR 7 214 #define USB_IN_status__nodata__WIDTH 1 215 #define USB_IN_status__nodata__no 0 216 #define USB_IN_status__nodata__yes 1 217 218 #define USB_IN_status__epid__BITNR 8 219 #define USB_IN_status__epid__WIDTH 5 220 221 #define USB_EP_command__eol__BITNR 0 222 #define USB_EP_command__eol__WIDTH 1 223 #define USB_EP_command__eol__no 0 224 #define USB_EP_command__eol__yes 1 225 226 #define USB_EP_command__eof__BITNR 1 227 #define USB_EP_command__eof__WIDTH 1 228 #define USB_EP_command__eof__no 0 229 #define USB_EP_command__eof__yes 1 230 231 #define USB_EP_command__intr__BITNR 3 232 #define USB_EP_command__intr__WIDTH 1 233 #define USB_EP_command__intr__no 0 234 #define USB_EP_command__intr__yes 1 235 236 #define USB_EP_command__enable__BITNR 4 237 #define USB_EP_command__enable__WIDTH 1 238 #define USB_EP_command__enable__no 0 239 #define USB_EP_command__enable__yes 1 240 241 #define USB_EP_command__hw_valid__BITNR 5 242 #define USB_EP_command__hw_valid__WIDTH 1 243 #define USB_EP_command__hw_valid__no 0 244 #define USB_EP_command__hw_valid__yes 1 245 246 #define USB_EP_command__epid__BITNR 8 247 #define USB_EP_command__epid__WIDTH 5 248 249 #define USB_SB_command__eol__BITNR 0 /* command macros. */ 250 #define USB_SB_command__eol__WIDTH 1 251 #define USB_SB_command__eol__no 0 252 #define USB_SB_command__eol__yes 1 253 254 #define USB_SB_command__eot__BITNR 1 255 #define USB_SB_command__eot__WIDTH 1 256 #define USB_SB_command__eot__no 0 257 #define USB_SB_command__eot__yes 1 258 259 #define USB_SB_command__intr__BITNR 3 260 #define USB_SB_command__intr__WIDTH 1 261 #define USB_SB_command__intr__no 0 262 #define USB_SB_command__intr__yes 1 263 264 #define USB_SB_command__tt__BITNR 4 265 #define USB_SB_command__tt__WIDTH 2 266 #define USB_SB_command__tt__zout 0 267 #define USB_SB_command__tt__in 1 268 #define USB_SB_command__tt__out 2 269 #define USB_SB_command__tt__setup 3 270 271 272 #define USB_SB_command__rem__BITNR 8 273 #define USB_SB_command__rem__WIDTH 6 274 275 #define USB_SB_command__full__BITNR 6 276 #define USB_SB_command__full__WIDTH 1 277 #define USB_SB_command__full__no 0 278 #define USB_SB_command__full__yes 1 279 280 #endif 281