1 /** @file
2   Definitions for ASIX AX88772 Ethernet adapter.
3 
4   Copyright (c) 2011 - 2015, Intel Corporation. All rights reserved.<BR>
5   This program and the accompanying materials
6   are licensed and made available under the terms and conditions of the BSD License
7   which accompanies this distribution.  The full text of the license may be found at
8   http://opensource.org/licenses/bsd-license.php
9 
10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12 
13 **/
14 
15 #ifndef _AX88772_H_
16 #define _AX88772_H_
17 
18 #include <Uefi.h>
19 
20 #include <Guid/EventGroup.h>
21 
22 #include <IndustryStandard/Pci.h>
23 
24 #include <Library/BaseMemoryLib.h>
25 #include <Library/DebugLib.h>
26 #include <Library/DevicePathLib.h>
27 #include <Library/UefiBootServicesTableLib.h>
28 #include <Library/UefiDriverEntryPoint.h>
29 #include <Library/UefiLib.h>
30 #include <Library/UefiRuntimeLib.h>
31 
32 #include <Protocol/DevicePath.h>
33 #include <Protocol/LoadedImage.h>
34 #include <Protocol/NetworkInterfaceIdentifier.h>
35 #include <Protocol/SimpleNetwork.h>
36 #include <Protocol/UsbIo.h>
37 
38 //------------------------------------------------------------------------------
39 //  Macros
40 //------------------------------------------------------------------------------
41 //
42 //Too many output debug info hangs system in Debug tip
43 //
44 //#if defined(_MSC_VER)           /* Handle Microsoft VC++ compiler specifics. */
45 //#define DBG_ENTER()             DEBUG (( DEBUG_INFO, "Entering " __FUNCTION__ "\n" )) ///<  Display routine entry
46 //#define DBG_EXIT()              DEBUG (( DEBUG_INFO, "Exiting " __FUNCTION__ "\n" ))  ///<  Display routine exit
47 //#define DBG_EXIT_DEC(Status)    DEBUG (( DEBUG_INFO, "Exiting " __FUNCTION__ ", Status: %d\n", Status ))      ///<  Display routine exit with decimal value
48 //#define DBG_EXIT_HEX(Status)    DEBUG (( DEBUG_INFO, "Exiting " __FUNCTION__ ", Status: 0x%08x\n", Status ))  ///<  Display routine exit with hex value
49 //#define DBG_EXIT_STATUS(Status) DEBUG (( DEBUG_INFO, "Exiting " __FUNCTION__ ", Status: %r\n", Status ))      ///<  Display routine exit with status value
50 //#define DBG_EXIT_TF(Status)     DEBUG (( DEBUG_INFO, "Exiting " __FUNCTION__ ", returning %s\n", (FALSE == Status) ? L"FALSE" : L"TRUE" ))  ///<  Display routine with TRUE/FALSE value
51 //#else   //  _MSC_VER
52 #define DBG_ENTER()               ///<  Display routine entry
53 #define DBG_EXIT()                ///<  Display routine exit
54 #define DBG_EXIT_DEC(Status)      ///<  Display routine exit with decimal value
55 #define DBG_EXIT_HEX(Status)      ///<  Display routine exit with hex value
56 #define DBG_EXIT_STATUS(Status)   ///<  Display routine exit with status value
57 #define DBG_EXIT_TF(Status)       ///<  Display routine with TRUE/FALSE value
58 //#endif  //  _MSC_VER
59 
60 #define USB_IS_IN_ENDPOINT(EndPointAddr)      (((EndPointAddr) & BIT7) != 0)  ///<  Return TRUE/FALSE for IN direction
61 #define USB_IS_OUT_ENDPOINT(EndPointAddr)     (((EndPointAddr) & BIT7) == 0)  ///<  Return TRUE/FALSE for OUT direction
62 #define USB_IS_BULK_ENDPOINT(Attribute)       (((Attribute) & (BIT0 | BIT1)) == USB_ENDPOINT_BULK)      ///<  Return TRUE/FALSE for BULK type
63 #define USB_IS_INTERRUPT_ENDPOINT(Attribute)  (((Attribute) & (BIT0 | BIT1)) == USB_ENDPOINT_INTERRUPT) ///<  Return TRUE/FALSE for INTERRUPT type
64 
65 //------------------------------------------------------------------------------
66 //  Constants
67 //------------------------------------------------------------------------------
68 
69 #define DEBUG_RX_BROADCAST  0x40000000  ///<  Display RX broadcast messages
70 #define DEBUG_RX_MULTICAST  0x20000000  ///<  Display RX multicast messages
71 #define DEBUG_RX_UNICAST    0x10000000  ///<  Display RX unicast messages
72 #define DEBUG_MAC_ADDRESS   0x08000000  ///<  Display the MAC address
73 #define DEBUG_LINK          0x04000000  ///<  Display the link status
74 #define DEBUG_TX            0x02000000  ///<  Display the TX messages
75 #define DEBUG_PHY           0x01000000  ///<  Display the PHY register values
76 #define DEBUG_SROM          0x00800000  ///<  Display the SROM contents
77 #define DEBUG_TIMER         0x00400000  ///<  Display the timer routine entry/exit
78 #define DEBUG_TPL           0x00200000  ///<  Display the timer routine entry/exit
79 
80 #define AX88772_MAX_PKT_SIZE  ( 2048 - 4 )  ///< Maximum packet size
81 #define ETHERNET_HEADER_SIZE  sizeof ( ETHERNET_HEADER )  ///<  Size in bytes of the Ethernet header
82 #define MIN_ETHERNET_PKT_SIZE 60    ///<  Minimum packet size including Ethernet header
83 #define MAX_ETHERNET_PKT_SIZE 1500  ///<  Ethernet spec 3.1.1: Minimum packet size
84 #define MAX_BULKIN_SIZE       2048  ///<  Maximum size of one UsbBulk
85 
86 
87 #define USB_NETWORK_CLASS   0x09    ///<  USB Network class code
88 #define USB_BUS_TIMEOUT     1000    ///<  USB timeout in milliseconds
89 
90 #define TIMER_MSEC          20              ///<  Polling interval for the NIC
91 #define TPL_AX88772         TPL_CALLBACK    ///<  TPL for routine synchronization
92 
93 /**
94   Verify new TPL value
95 
96   This macro which is enabled when debug is enabled verifies that
97   the new TPL value is >= the current TPL value.
98 **/
99 #ifdef VERIFY_TPL
100 #undef VERIFY_TPL
101 #endif  //  VERIFY_TPL
102 
103 #if !defined(MDEPKG_NDEBUG)
104 
105 #define VERIFY_TPL(tpl)                           \
106 {                                                 \
107   EFI_TPL PreviousTpl;                            \
108                                                   \
109   PreviousTpl = gBS->RaiseTPL ( TPL_HIGH_LEVEL ); \
110   gBS->RestoreTPL ( PreviousTpl );                \
111   if ( PreviousTpl > tpl ) {                      \
112     DEBUG (( DEBUG_ERROR, "Current TPL: %d, New TPL: %d\r\n", PreviousTpl, tpl ));  \
113     ASSERT ( PreviousTpl <= tpl );                \
114   }                                               \
115 }
116 
117 #else   //  MDEPKG_NDEBUG
118 
119 #define VERIFY_TPL(tpl)
120 
121 #endif  //  MDEPKG_NDEBUG
122 
123 //------------------------------------------------------------------------------
124 //  Hardware Definition
125 //------------------------------------------------------------------------------
126 
127 #define DEV_SIGNATURE     SIGNATURE_32 ('A','X','8','8')  ///<  Signature of data structures in memory
128 
129 #define VENDOR_ID         0x0b95  ///<  Vendor ID for Asix
130 #define PRODUCT_ID        0x7720  ///<  Product ID for the AX88772 USB 10/100 Ethernet controller
131 
132 #define RESET_MSEC        1000    ///<  Reset duration
133 #define PHY_RESET_MSEC     500    ///<  PHY reset duration
134 
135 //
136 //  RX Control register
137 //
138 
139 #define RXC_PRO           0x0001  ///<  Receive all packets
140 #define RXC_AMALL         0x0002  ///<  Receive all multicast packets
141 #define RXC_SEP           0x0004  ///<  Save error packets
142 #define RXC_AB            0x0008  ///<  Receive broadcast packets
143 #define RXC_AM            0x0010  ///<  Use multicast destination address hash table
144 #define RXC_AP            0x0020  ///<  Accept physical address from Multicast Filter
145 #define RXC_SO            0x0080  ///<  Start operation
146 #define RXC_MFB           0x0300  ///<  Maximum frame burst
147 #define RXC_MFB_2048      0       ///<  Maximum frame size:  2048 bytes
148 #define RXC_MFB_4096      0x0100  ///<  Maximum frame size:  4096 bytes
149 #define RXC_MFB_8192      0x0200  ///<  Maximum frame size:  8192 bytes
150 #define RXC_MFB_16384     0x0300  ///<  Maximum frame size: 16384 bytes
151 
152 //
153 //  Medium Status register
154 //
155 
156 #define MS_FD             0x0002  ///<  Full duplex
157 #define MS_ONE            0x0004  ///<  Must be one
158 #define MS_RFC            0x0010  ///<  RX flow control enable
159 #define MS_TFC            0x0020  ///<  TX flow control enable
160 #define MS_PF             0x0080  ///<  Pause frame enable
161 #define MS_RE             0x0100  ///<  Receive enable
162 #define MS_PS             0x0200  ///<  Port speed 1=100, 0=10 Mbps
163 #define MS_SBP            0x0800  ///<  Stop back pressure
164 #define MS_SM             0x1000  ///<  Super MAC support
165 
166 //
167 //  Software PHY Select register
168 //
169 
170 #define SPHY_PSEL         0x01    ///<  Select internal PHY
171 #define SPHY_ASEL         0x02    ///<  1=Auto select, 0=Manual select
172 
173 //
174 //  Software Reset register
175 //
176 
177 #define SRR_RR            0x01    ///<  Clear receive frame length error
178 #define SRR_RT            0x02    ///<  Clear transmit frame length error
179 #define SRR_PRTE          0x04    ///<  External PHY reset pin tri-state enable
180 #define SRR_PRL           0x08    ///<  External PHY reset pin level
181 #define SRR_BZ            0x10    ///<  Force Bulk to return zero length packet
182 #define SRR_IPRL          0x20    ///<  Internal PHY reset control
183 #define SRR_IPPD          0x40    ///<  Internal PHY power down
184 
185 //
186 //  PHY ID values
187 //
188 
189 #define PHY_ID_INTERNAL   0x0010  ///<  Internal PHY
190 
191 //
192 //  USB Commands
193 //
194 
195 #define CMD_PHY_ACCESS_SOFTWARE   0x06  ///<  Software in control of PHY
196 #define CMD_PHY_REG_READ          0x07  ///<  Read PHY register, Value: PHY, Index: Register, Data: Register value
197 #define CMD_PHY_REG_WRITE         0x08  ///<  Write PHY register, Value: PHY, Index: Register, Data: New 16-bit value
198 #define CMD_PHY_ACCESS_HARDWARE   0x0a  ///<  Hardware in control of PHY
199 #define CMD_SROM_READ             0x0b  ///<  Read SROM register: Value: Address, Data: Value
200 #define CMD_RX_CONTROL_WRITE      0x10  ///<  Set the RX control register, Value: New value
201 #define CMD_GAPS_WRITE            0x12  ///<  Write the gaps register, Value: New value
202 #define CMD_MAC_ADDRESS_READ      0x13  ///<  Read the MAC address, Data: 6 byte MAC address
203 #define CMD_MAC_ADDRESS_WRITE     0x14  ///<  Set the MAC address, Data: New 6 byte MAC address
204 #define CMD_MULTICAST_HASH_WRITE  0x16  ///<  Write the multicast hash table, Data: New 8 byte value
205 #define CMD_MEDIUM_STATUS_READ    0x1a  ///<  Read medium status register, Data: Register value
206 #define CMD_MEDIUM_STATUS_WRITE   0x1b  ///<  Write medium status register, Value: New value
207 #define CMD_RESET                 0x20  ///<  Reset register, Value: New value
208 #define CMD_PHY_SELECT            0x22  ///<  PHY select register, Value: New value
209 
210 //------------------------------
211 //  USB Endpoints
212 //------------------------------
213 
214 #define CONTROL_ENDPOINT                0       ///<  Control endpoint
215 #define INTERRUPT_ENDPOINT              1       ///<  Interrupt endpoint
216 #define BULK_IN_ENDPOINT                2       ///<  Receive endpoint
217 #define BULK_OUT_ENDPOINT               3       ///<  Transmit endpoint
218 
219 //------------------------------
220 //  PHY Registers
221 //------------------------------
222 
223 #define PHY_BMCR                        0       ///<  Control register
224 #define PHY_BMSR                        1       ///<  Status register
225 #define PHY_ANAR                        4       ///<  Autonegotiation advertisement register
226 #define PHY_ANLPAR                      5       ///<  Autonegotiation link parter ability register
227 #define PHY_ANER                        6       ///<  Autonegotiation expansion register
228 
229 //  BMCR - Register 0
230 
231 #define BMCR_RESET                      0x8000  ///<  1 = Reset the PHY, bit clears after reset
232 #define BMCR_LOOPBACK                   0x4000  ///<  1 = Loopback enabled
233 #define BMCR_100MBPS                    0x2000  ///<  100 Mbits/Sec
234 #define BMCR_10MBPS                     0       ///<  10 Mbits/Sec
235 #define BMCR_AUTONEGOTIATION_ENABLE     0x1000  ///<  1 = Enable autonegotiation
236 #define BMCR_POWER_DOWN                 0x0800  ///<  1 = Power down
237 #define BMCR_ISOLATE                    0x0400  ///<  0 = Isolate PHY
238 #define BMCR_RESTART_AUTONEGOTIATION    0x0200  ///<  1 = Restart autonegotiation
239 #define BMCR_FULL_DUPLEX                0x0100  ///<  Full duplex operation
240 #define BMCR_HALF_DUPLEX                0       ///<  Half duplex operation
241 #define BMCR_COLLISION_TEST             0x0080  ///<  1 = Collision test enabled
242 
243 //  BSMR - Register 1
244 
245 #define BMSR_100BASET4                  0x8000  ///<  1 = 100BASE-T4 mode
246 #define BMSR_100BASETX_FDX              0x4000  ///<  1 = 100BASE-TX full duplex
247 #define BMSR_100BASETX_HDX              0x2000  ///<  1 = 100BASE-TX half duplex
248 #define BMSR_10BASET_FDX                0x1000  ///<  1 = 10BASE-T full duplex
249 #define BMSR_10BASET_HDX                0x0800  ///<  1 = 10BASE-T half duplex
250 #define BMSR_MF                         0x0040  ///<  1 = PHY accepts frames with preamble suppressed
251 #define BMSR_AUTONEG_CMPLT              0x0020  ///<  1 = Autonegotiation complete
252 #define BMSR_RF                         0x0010  ///<  1 = Remote fault
253 #define BMSR_AUTONEG                    0x0008  ///<  1 = Able to perform autonegotiation
254 #define BMSR_LINKST                     0x0004  ///<  1 = Link up
255 #define BMSR_JABBER_DETECT              0x0002  ///<  1 = jabber condition detected
256 #define BMSR_EXTENDED_CAPABILITY        0x0001  ///<  1 = Extended register capable
257 
258 //  ANAR and ANLPAR Registers 4, 5
259 
260 #define AN_NP                           0x8000  ///<  1 = Next page available
261 #define AN_ACK                          0x4000  ///<  1 = Link partner acknowledged
262 #define AN_RF                           0x2000  ///<  1 = Remote fault indicated by link partner
263 #define AN_FCS                          0x0400  ///<  1 = Flow control ability
264 #define AN_T4                           0x0200  ///<  1 = 100BASE-T4 support
265 #define AN_TX_FDX                       0x0100  ///<  1 = 100BASE-TX Full duplex
266 #define AN_TX_HDX                       0x0080  ///<  1 = 100BASE-TX support
267 #define AN_10_FDX                       0x0040  ///<  1 = 10BASE-T Full duplex
268 #define AN_10_HDX                       0x0020  ///<  1 = 10BASE-T support
269 #define AN_CSMA_CD                      0x0001  ///<  1 = IEEE 802.3 CSMA/CD support
270 
271 //------------------------------------------------------------------------------
272 //  Data Types
273 //------------------------------------------------------------------------------
274 
275 /**
276   Ethernet header layout
277 
278   IEEE 802.3-2002 Part 3 specification, section 3.1.1.
279 **/
280 #pragma pack(1)
281 typedef struct {
282   UINT8 dest_addr[PXE_HWADDR_LEN_ETHER];  ///<  Destination LAN address
283   UINT8 src_addr[PXE_HWADDR_LEN_ETHER];   ///<  Source LAN address
284   UINT16 type;                            ///<  Protocol or length
285 } ETHERNET_HEADER;
286 #pragma pack()
287 
288 /**
289   Receive and Transmit packet structure
290 **/
291 #pragma pack(1)
292 typedef struct _RX_TX_PACKET {
293   struct _RX_TX_PACKET * pNext;       ///<  Next receive packet
294   UINT16 Length;                      ///<  Packet length
295   UINT16 LengthBar;                   ///<  Complement of the length
296   UINT8 Data[ AX88772_MAX_PKT_SIZE ]; ///<  Received packet data
297 } RX_TX_PACKET;
298 #pragma pack()
299 
300 /**
301   AX88772 control structure
302 
303   The driver uses this structure to manage the Asix AX88772 10/100
304   Ethernet controller.
305 **/
306 typedef struct {
307   UINTN Signature;          ///<  Structure identification
308 
309   //
310   //  USB data
311   //
312   EFI_HANDLE Controller;        ///<  Controller handle
313   EFI_USB_IO_PROTOCOL * pUsbIo; ///<  USB driver interface
314 
315   //
316   //  Simple network protocol data
317   //
318   EFI_SIMPLE_NETWORK_PROTOCOL SimpleNetwork;  ///<  Driver's network stack interface
319   EFI_SIMPLE_NETWORK_MODE SimpleNetworkData;  ///<  Data for simple network
320 
321   //
322   // Ethernet controller data
323   //
324   BOOLEAN bInitialized;     ///<  Controller initialized
325   VOID * pTxBuffer;         ///<  Last transmit buffer
326   UINT16 PhyId;             ///<  PHY ID
327 
328   //
329   //  Link state
330   //
331   BOOLEAN b100Mbps;         ///<  Current link speed, FALSE = 10 Mbps
332   BOOLEAN bComplete;        ///<  Current state of auto-negotiation
333   BOOLEAN bFullDuplex;      ///<  Current duplex
334   BOOLEAN bLinkUp;          ///<  Current link state
335   BOOLEAN bLinkIdle;        ///<  TRUE = No received traffic
336   EFI_EVENT Timer;          ///<  Timer to monitor link state and receive packets
337   UINTN PollCount;          ///<  Number of times the autonegotiation status was polled
338 
339   //
340   //  Receive buffer list
341   //
342   RX_TX_PACKET * pRxHead;   ///<  Head of receive packet list
343   RX_TX_PACKET * pRxTail;   ///<  Tail of receive packet list
344   RX_TX_PACKET * pRxFree;   ///<  Free packet list
345   INT32 MulticastHash[2];   ///<  Hash table for multicast destination addresses
346   UINT8 * pBulkInBuff;      ///<  Buffer for Usb Bulk
347 } NIC_DEVICE;
348 
349 #define DEV_FROM_SIMPLE_NETWORK(a)  CR (a, NIC_DEVICE, SimpleNetwork, DEV_SIGNATURE)  ///< Locate NIC_DEVICE from Simple Network Protocol
350 
351 //------------------------------------------------------------------------------
352 // Simple Network Protocol
353 //------------------------------------------------------------------------------
354 
355 /**
356   Reset the network adapter.
357 
358   Resets a network adapter and reinitializes it with the parameters that
359   were provided in the previous call to Initialize ().  The transmit and
360   receive queues are cleared.  Receive filters, the station address, the
361   statistics, and the multicast-IP-to-HW MAC addresses are not reset by
362   this call.
363 
364   This routine calls ::Ax88772Reset to perform the adapter specific
365   reset operation.  This routine also starts the link negotiation
366   by calling ::Ax88772NegotiateLinkStart.
367 
368   @param [in] pSimpleNetwork    Protocol instance pointer
369   @param [in] bExtendedVerification  Indicates that the driver may perform a more
370                                 exhaustive verification operation of the device
371                                 during reset.
372 
373   @retval EFI_SUCCESS           This operation was successful.
374   @retval EFI_NOT_STARTED       The network interface was not started.
375   @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
376                                 EFI_SIMPLE_NETWORK_PROTOCOL structure.
377   @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
378   @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
379 
380 **/
381 EFI_STATUS
382 EFIAPI
383 SN_Reset (
384   IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
385   IN BOOLEAN bExtendedVerification
386   );
387 
388 /**
389   Initialize the simple network protocol.
390 
391   This routine calls ::Ax88772MacAddressGet to obtain the
392   MAC address.
393 
394   @param [in] pNicDevice       NIC_DEVICE_INSTANCE pointer
395 
396   @retval EFI_SUCCESS     Setup was successful
397 
398 **/
399 EFI_STATUS
400 SN_Setup (
401   IN NIC_DEVICE * pNicDevice
402   );
403 
404 /**
405   This routine starts the network interface.
406 
407   @param [in] pSimpleNetwork    Protocol instance pointer
408 
409   @retval EFI_SUCCESS           This operation was successful.
410   @retval EFI_ALREADY_STARTED   The network interface was already started.
411   @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
412                                 EFI_SIMPLE_NETWORK_PROTOCOL structure.
413   @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
414   @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
415 
416 **/
417 EFI_STATUS
418 EFIAPI
419 SN_Start (
420   IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
421   );
422 
423 /**
424   Set the MAC address.
425 
426   This function modifies or resets the current station address of a
427   network interface.  If Reset is TRUE, then the current station address
428   is set ot the network interface's permanent address.  If Reset if FALSE
429   then the current station address is changed to the address specified by
430   pNew.
431 
432   This routine calls ::Ax88772MacAddressSet to update the MAC address
433   in the network adapter.
434 
435   @param [in] pSimpleNetwork    Protocol instance pointer
436   @param [in] bReset            Flag used to reset the station address to the
437                                 network interface's permanent address.
438   @param [in] pNew              New station address to be used for the network
439                                 interface.
440 
441   @retval EFI_SUCCESS           This operation was successful.
442   @retval EFI_NOT_STARTED       The network interface was not started.
443   @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
444                                 EFI_SIMPLE_NETWORK_PROTOCOL structure.
445   @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
446   @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
447 
448 **/
449 EFI_STATUS
450 EFIAPI
451 SN_StationAddress (
452   IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
453   IN BOOLEAN bReset,
454   IN EFI_MAC_ADDRESS * pNew
455   );
456 
457 /**
458   This function resets or collects the statistics on a network interface.
459   If the size of the statistics table specified by StatisticsSize is not
460   big enough for all of the statistics that are collected by the network
461   interface, then a partial buffer of statistics is returned in
462   StatisticsTable.
463 
464   @param [in] pSimpleNetwork    Protocol instance pointer
465   @param [in] bReset            Set to TRUE to reset the statistics for the network interface.
466   @param [in, out] pStatisticsSize  On input the size, in bytes, of StatisticsTable.  On output
467                                 the size, in bytes, of the resulting table of statistics.
468   @param [out] pStatisticsTable A pointer to the EFI_NETWORK_STATISTICS structure that
469                                 conains the statistics.
470 
471   @retval EFI_SUCCESS           This operation was successful.
472   @retval EFI_NOT_STARTED       The network interface was not started.
473   @retval EFI_BUFFER_TOO_SMALL  The pStatisticsTable is NULL or the buffer is too small.
474   @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
475                                 EFI_SIMPLE_NETWORK_PROTOCOL structure.
476   @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
477   @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
478 
479 **/
480 EFI_STATUS
481 EFIAPI
482 SN_Statistics (
483   IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
484   IN BOOLEAN bReset,
485   IN OUT UINTN * pStatisticsSize,
486   OUT EFI_NETWORK_STATISTICS * pStatisticsTable
487   );
488 
489 /**
490   This function stops a network interface.  This call is only valid
491   if the network interface is in the started state.
492 
493   @param [in] pSimpleNetwork    Protocol instance pointer
494 
495   @retval EFI_SUCCESS           This operation was successful.
496   @retval EFI_NOT_STARTED       The network interface was not started.
497   @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
498                                 EFI_SIMPLE_NETWORK_PROTOCOL structure.
499   @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
500   @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
501 
502 **/
503 EFI_STATUS
504 EFIAPI
505 SN_Stop (
506   IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
507   );
508 
509 /**
510   This function releases the memory buffers assigned in the Initialize() call.
511   Pending transmits and receives are lost, and interrupts are cleared and disabled.
512   After this call, only Initialize() and Stop() calls may be used.
513 
514   @param [in] pSimpleNetwork    Protocol instance pointer
515 
516   @retval EFI_SUCCESS           This operation was successful.
517   @retval EFI_NOT_STARTED       The network interface was not started.
518   @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
519                                 EFI_SIMPLE_NETWORK_PROTOCOL structure.
520   @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
521   @retval EFI_UNSUPPORTED       The increased buffer size feature is not supported.
522 
523 **/
524 EFI_STATUS
525 EFIAPI
526 SN_Shutdown (
527   IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork
528   );
529 
530 /**
531   Send a packet over the network.
532 
533   This function places the packet specified by Header and Buffer on
534   the transmit queue.  This function performs a non-blocking transmit
535   operation.  When the transmit is complete, the buffer is returned
536   via the GetStatus() call.
537 
538   This routine calls ::Ax88772Rx to empty the network adapter of
539   receive packets.  The routine then passes the transmit packet
540   to the network adapter.
541 
542   @param [in] pSimpleNetwork    Protocol instance pointer
543   @param [in] HeaderSize        The size, in bytes, of the media header to be filled in by
544                                 the Transmit() function.  If HeaderSize is non-zero, then
545                                 it must be equal to SimpleNetwork->Mode->MediaHeaderSize
546                                 and DestAddr and Protocol parameters must not be NULL.
547   @param [in] BufferSize        The size, in bytes, of the entire packet (media header and
548                                 data) to be transmitted through the network interface.
549   @param [in] pBuffer           A pointer to the packet (media header followed by data) to
550                                 to be transmitted.  This parameter can not be NULL.  If
551                                 HeaderSize is zero, then the media header is Buffer must
552                                 already be filled in by the caller.  If HeaderSize is nonzero,
553                                 then the media header will be filled in by the Transmit()
554                                 function.
555   @param [in] pSrcAddr          The source HW MAC address.  If HeaderSize is zero, then
556                                 this parameter is ignored.  If HeaderSize is nonzero and
557                                 SrcAddr is NULL, then SimpleNetwork->Mode->CurrentAddress
558                                 is used for the source HW MAC address.
559   @param [in] pDestAddr         The destination HW MAC address.  If HeaderSize is zero, then
560                                 this parameter is ignored.
561   @param [in] pProtocol         The type of header to build.  If HeaderSize is zero, then
562                                 this parameter is ignored.
563 
564   @retval EFI_SUCCESS           This operation was successful.
565   @retval EFI_NOT_STARTED       The network interface was not started.
566   @retval EFI_NOT_READY         The network interface is too busy to accept this transmit request.
567   @retval EFI_BUFFER_TOO_SMALL  The BufferSize parameter is too small.
568   @retval EFI_INVALID_PARAMETER pSimpleNetwork parameter was NULL or did not point to a valid
569                                 EFI_SIMPLE_NETWORK_PROTOCOL structure.
570   @retval EFI_DEVICE_ERROR      The command could not be sent to the network interface.
571 
572 **/
573 EFI_STATUS
574 EFIAPI
575 SN_Transmit (
576   IN EFI_SIMPLE_NETWORK_PROTOCOL * pSimpleNetwork,
577   IN UINTN HeaderSize,
578   IN UINTN BufferSize,
579   IN VOID * pBuffer,
580   IN EFI_MAC_ADDRESS * pSrcAddr,
581   IN EFI_MAC_ADDRESS * pDestAddr,
582   IN UINT16 * pProtocol
583   );
584 
585 //------------------------------------------------------------------------------
586 // Support Routines
587 //------------------------------------------------------------------------------
588 
589 /**
590   Get the MAC address
591 
592   This routine calls ::Ax88772UsbCommand to request the MAC
593   address from the network adapter.
594 
595   @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
596   @param [out] pMacAddress      Address of a six byte buffer to receive the MAC address.
597 
598   @retval EFI_SUCCESS          The MAC address is available.
599   @retval other                The MAC address is not valid.
600 
601 **/
602 EFI_STATUS
603 Ax88772MacAddressGet (
604   IN NIC_DEVICE * pNicDevice,
605   OUT UINT8 * pMacAddress
606   );
607 
608 /**
609   Set the MAC address
610 
611   This routine calls ::Ax88772UsbCommand to set the MAC address
612   in the network adapter.
613 
614   @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
615   @param [in] pMacAddress      Address of a six byte buffer to containing the new MAC address.
616 
617   @retval EFI_SUCCESS          The MAC address was set.
618   @retval other                The MAC address was not set.
619 
620 **/
621 EFI_STATUS
622 Ax88772MacAddressSet (
623   IN NIC_DEVICE * pNicDevice,
624   IN UINT8 * pMacAddress
625   );
626 
627 /**
628   Clear the multicast hash table
629 
630   @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
631 
632 **/
633 VOID
634 Ax88772MulticastClear (
635   IN NIC_DEVICE * pNicDevice
636   );
637 
638 /**
639   Enable a multicast address in the multicast hash table
640 
641   This routine calls ::Ax88772Crc to compute the hash bit for
642   this MAC address.
643 
644   @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
645   @param [in] pMacAddress      Address of a six byte buffer to containing the MAC address.
646 
647 **/
648 VOID
649 Ax88772MulticastSet (
650   IN NIC_DEVICE * pNicDevice,
651   IN UINT8 * pMacAddress
652   );
653 
654 /**
655   Start the link negotiation
656 
657   This routine calls ::Ax88772PhyWrite to start the PHY's link
658   negotiation.
659 
660   @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
661 
662   @retval EFI_SUCCESS          The link negotiation was started.
663   @retval other                Failed to start the link negotiation.
664 
665 **/
666 EFI_STATUS
667 Ax88772NegotiateLinkStart (
668   IN NIC_DEVICE * pNicDevice
669   );
670 
671 /**
672   Complete the negotiation of the PHY link
673 
674   This routine calls ::Ax88772PhyRead to determine if the
675   link negotiation is complete.
676 
677   @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
678   @param [in, out] pPollCount  Address of number of times this routine was polled
679   @param [out] pbComplete      Address of boolean to receive complate status.
680   @param [out] pbLinkUp        Address of boolean to receive link status, TRUE=up.
681   @param [out] pbHiSpeed       Address of boolean to receive link speed, TRUE=100Mbps.
682   @param [out] pbFullDuplex    Address of boolean to receive link duplex, TRUE=full.
683 
684   @retval EFI_SUCCESS          The MAC address is available.
685   @retval other                The MAC address is not valid.
686 
687 **/
688 EFI_STATUS
689 Ax88772NegotiateLinkComplete (
690   IN NIC_DEVICE * pNicDevice,
691   IN OUT UINTN * pPollCount,
692   OUT BOOLEAN * pbComplete,
693   OUT BOOLEAN * pbLinkUp,
694   OUT BOOLEAN * pbHiSpeed,
695   OUT BOOLEAN * pbFullDuplex
696   );
697 
698 /**
699   Read a register from the PHY
700 
701   This routine calls ::Ax88772UsbCommand to read a PHY register.
702 
703   @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
704   @param [in] RegisterAddress  Number of the register to read.
705   @param [in, out] pPhyData    Address of a buffer to receive the PHY register value
706 
707   @retval EFI_SUCCESS          The PHY data is available.
708   @retval other                The PHY data is not valid.
709 
710 **/
711 EFI_STATUS
712 Ax88772PhyRead (
713   IN NIC_DEVICE * pNicDevice,
714   IN UINT8 RegisterAddress,
715   IN OUT UINT16 * pPhyData
716   );
717 
718 /**
719   Write to a PHY register
720 
721   This routine calls ::Ax88772UsbCommand to write a PHY register.
722 
723   @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
724   @param [in] RegisterAddress  Number of the register to read.
725   @param [in] PhyData          Address of a buffer to receive the PHY register value
726 
727   @retval EFI_SUCCESS          The PHY data was written.
728   @retval other                Failed to wwrite the PHY register.
729 
730 **/
731 EFI_STATUS
732 Ax88772PhyWrite (
733   IN NIC_DEVICE * pNicDevice,
734   IN UINT8 RegisterAddress,
735   IN UINT16 PhyData
736   );
737 
738 /**
739   Reset the AX88772
740 
741   This routine uses ::Ax88772UsbCommand to reset the network
742   adapter.  This routine also uses ::Ax88772PhyWrite to reset
743   the PHY.
744 
745   @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
746 
747   @retval EFI_SUCCESS          The MAC address is available.
748   @retval other                The MAC address is not valid.
749 
750 **/
751 EFI_STATUS
752 Ax88772Reset (
753   IN NIC_DEVICE * pNicDevice
754   );
755 
756 /**
757   Receive a frame from the network.
758 
759   This routine polls the USB receive interface for a packet.  If a packet
760   is available, this routine adds the receive packet to the list of
761   pending receive packets.
762 
763   This routine calls ::Ax88772NegotiateLinkComplete to verify
764   that the link is up.  This routine also calls ::SN_Reset to
765   reset the network adapter when necessary.  Finally this
766   routine attempts to receive one or more packets from the
767   network adapter.
768 
769   @param [in] pNicDevice  Pointer to the NIC_DEVICE structure
770   @param [in] bUpdateLink TRUE = Update link status
771 
772 **/
773 VOID
774 Ax88772Rx (
775   IN NIC_DEVICE * pNicDevice,
776   IN BOOLEAN bUpdateLink
777   );
778 
779 /**
780   Enable or disable the receiver
781 
782   This routine calls ::Ax88772UsbCommand to update the
783   receiver state.  This routine also calls ::Ax88772MacAddressSet
784   to establish the MAC address for the network adapter.
785 
786   @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
787   @param [in] RxFilter         Simple network RX filter mask value
788 
789   @retval EFI_SUCCESS          The MAC address was set.
790   @retval other                The MAC address was not set.
791 
792 **/
793 EFI_STATUS
794 Ax88772RxControl (
795   IN NIC_DEVICE * pNicDevice,
796   IN UINT32 RxFilter
797   );
798 
799 /**
800   Read an SROM location
801 
802   This routine calls ::Ax88772UsbCommand to read data from the
803   SROM.
804 
805   @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
806   @param [in] Address          SROM address
807   @param [out] pData           Buffer to receive the data
808 
809   @retval EFI_SUCCESS          The read was successful
810   @retval other                The read failed
811 
812 **/
813 EFI_STATUS
814 Ax88772SromRead (
815   IN NIC_DEVICE * pNicDevice,
816   IN UINT32 Address,
817   OUT UINT16 * pData
818   );
819 
820 /**
821   This routine is called at a regular interval to poll for
822   receive packets.
823 
824   This routine polls the link state and gets any receive packets
825   by calling ::Ax88772Rx.
826 
827   @param [in] Event            Timer event
828   @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
829 
830 **/
831 VOID
832 Ax88772Timer (
833   IN EFI_EVENT Event,
834   IN NIC_DEVICE * pNicDevice
835   );
836 
837 /**
838   Send a command to the USB device.
839 
840   @param [in] pNicDevice       Pointer to the NIC_DEVICE structure
841   @param [in] pRequest         Pointer to the request structure
842   @param [in, out] pBuffer     Data buffer address
843 
844   @retval EFI_SUCCESS          The USB transfer was successful
845   @retval other                The USB transfer failed
846 
847 **/
848 EFI_STATUS
849 Ax88772UsbCommand (
850   IN NIC_DEVICE * pNicDevice,
851   IN USB_DEVICE_REQUEST * pRequest,
852   IN OUT VOID * pBuffer
853   );
854 
855 //------------------------------------------------------------------------------
856 // EFI Component Name Protocol Support
857 //------------------------------------------------------------------------------
858 
859 extern EFI_COMPONENT_NAME_PROTOCOL   gComponentName;  ///<  Component name protocol declaration
860 extern EFI_COMPONENT_NAME2_PROTOCOL  gComponentName2; ///<  Component name 2 protocol declaration
861 
862 /**
863   Retrieves a Unicode string that is the user readable name of the driver.
864 
865   This function retrieves the user readable name of a driver in the form of a
866   Unicode string. If the driver specified by This has a user readable name in
867   the language specified by Language, then a pointer to the driver name is
868   returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
869   by This does not support the language specified by Language,
870   then EFI_UNSUPPORTED is returned.
871 
872   @param [in] pThis             A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
873                                 EFI_COMPONENT_NAME_PROTOCOL instance.
874   @param [in] pLanguage         A pointer to a Null-terminated ASCII string
875                                 array indicating the language. This is the
876                                 language of the driver name that the caller is
877                                 requesting, and it must match one of the
878                                 languages specified in SupportedLanguages. The
879                                 number of languages supported by a driver is up
880                                 to the driver writer. Language is specified
881                                 in RFC 3066 or ISO 639-2 language code format.
882   @param [out] ppDriverName     A pointer to the Unicode string to return.
883                                 This Unicode string is the name of the
884                                 driver specified by This in the language
885                                 specified by Language.
886 
887   @retval EFI_SUCCESS           The Unicode string for the Driver specified by
888                                 This and the language specified by Language was
889                                 returned in DriverName.
890   @retval EFI_INVALID_PARAMETER Language is NULL.
891   @retval EFI_INVALID_PARAMETER DriverName is NULL.
892   @retval EFI_UNSUPPORTED       The driver specified by This does not support
893                                 the language specified by Language.
894 
895 **/
896 EFI_STATUS
897 EFIAPI
898 GetDriverName (
899   IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
900   IN  CHAR8 * pLanguage,
901   OUT CHAR16 ** ppDriverName
902   );
903 
904 
905 /**
906   Retrieves a Unicode string that is the user readable name of the controller
907   that is being managed by a driver.
908 
909   This function retrieves the user readable name of the controller specified by
910   ControllerHandle and ChildHandle in the form of a Unicode string. If the
911   driver specified by This has a user readable name in the language specified by
912   Language, then a pointer to the controller name is returned in ControllerName,
913   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
914   managing the controller specified by ControllerHandle and ChildHandle,
915   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
916   support the language specified by Language, then EFI_UNSUPPORTED is returned.
917 
918   @param [in] pThis             A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
919                                 EFI_COMPONENT_NAME_PROTOCOL instance.
920   @param [in] ControllerHandle  The handle of a controller that the driver
921                                 specified by This is managing.  This handle
922                                 specifies the controller whose name is to be
923                                 returned.
924   @param [in] ChildHandle       The handle of the child controller to retrieve
925                                 the name of.  This is an optional parameter that
926                                 may be NULL.  It will be NULL for device
927                                 drivers.  It will also be NULL for a bus drivers
928                                 that wish to retrieve the name of the bus
929                                 controller.  It will not be NULL for a bus
930                                 driver that wishes to retrieve the name of a
931                                 child controller.
932   @param [in] pLanguage         A pointer to a Null-terminated ASCII string
933                                 array indicating the language.  This is the
934                                 language of the driver name that the caller is
935                                 requesting, and it must match one of the
936                                 languages specified in SupportedLanguages. The
937                                 number of languages supported by a driver is up
938                                 to the driver writer. Language is specified in
939                                 RFC 3066 or ISO 639-2 language code format.
940   @param [out] ppControllerName A pointer to the Unicode string to return.
941                                 This Unicode string is the name of the
942                                 controller specified by ControllerHandle and
943                                 ChildHandle in the language specified by
944                                 Language from the point of view of the driver
945                                 specified by This.
946 
947   @retval EFI_SUCCESS           The Unicode string for the user readable name in
948                                 the language specified by Language for the
949                                 driver specified by This was returned in
950                                 DriverName.
951   @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
952   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
953                                 EFI_HANDLE.
954   @retval EFI_INVALID_PARAMETER Language is NULL.
955   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
956   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
957                                 managing the controller specified by
958                                 ControllerHandle and ChildHandle.
959   @retval EFI_UNSUPPORTED       The driver specified by This does not support
960                                 the language specified by Language.
961 
962 **/
963 EFI_STATUS
964 EFIAPI
965 GetControllerName (
966   IN  EFI_COMPONENT_NAME_PROTOCOL * pThis,
967   IN  EFI_HANDLE ControllerHandle,
968   IN OPTIONAL EFI_HANDLE ChildHandle,
969   IN  CHAR8 * pLanguage,
970   OUT CHAR16 ** ppControllerName
971   );
972 
973 //------------------------------------------------------------------------------
974 
975 #endif  //  _AX88772_H_
976