src/include/nic.h

   1  /*
   2  * This program is free software; you can redistribute it and/or
   3  * modify it under the terms of the GNU General Public License as
   4  * published by the Free Software Foundation; either version 2, or (at
   5  * your option) any later version.
   6  */
   7
   8 #ifndef NIC_H
   9 #define NIC_H
  10
  11 #include <stdint.h>
  12 #include <string.h>
  13 #include <stdio.h>
  14 #include <byteswap.h>
  15 #include <gpxe/pci.h>
  16 #include <gpxe/isapnp.h>
  17 #include <gpxe/isa.h>
  18 #include <gpxe/eisa.h>
  19 #include <gpxe/mca.h>
  20 #include <gpxe/io.h>
  21 #include "dhcp.h"
  22
  23 typedef enum {
  24         DISABLE = 0,
  25         ENABLE,
  26         FORCE
  27 } irq_action_t;
  28
  29 typedef enum duplex {
  30         HALF_DUPLEX = 1,
  31         FULL_DUPLEX
  32 } duplex_t;
  33
  34 /*
  35  *      Structure returned from eth_probe and passed to other driver
  36  *      functions.
  37  */
  38 struct nic {
  39         struct nic_operations   *nic_op;
  40         int                     flags;  /* driver specific flags */
  41         unsigned char           *node_addr;
  42         unsigned char           *packet;
  43         unsigned int            packetlen;
  44         unsigned int            ioaddr;
  45         unsigned char           irqno;
  46         unsigned int            mbps;
  47         duplex_t                duplex;
  48         struct dhcp_dev_id      dhcp_dev_id;
  49         void                    *priv_data;     /* driver private data */
  50 };
  51
  52 struct nic_operations {
  53         int ( *connect ) ( struct nic * );
  54         int ( *poll ) ( struct nic *, int retrieve );
  55         void ( *transmit ) ( struct nic *, const char *,
  56                              unsigned int, unsigned int, const char * );
  57         void ( *irq ) ( struct nic *, irq_action_t );
  58 };
  59
  60 extern struct nic nic;
  61
  62 static inline int eth_poll ( int retrieve ) {
  63         return nic.nic_op->poll ( &nic, retrieve );
  64 }
  65
  66 static inline void eth_transmit ( const char *dest, unsigned int type,
  67                                   unsigned int size, const void *packet ) {
  68         nic.nic_op->transmit ( &nic, dest, type, size, packet );
  69 }
  70
  71 /*
  72  * Function prototypes
  73  *
  74  */
  75 extern int dummy_connect ( struct nic *nic );
  76 extern void dummy_irq ( struct nic *nic, irq_action_t irq_action );
  77 extern int legacy_probe ( void *hwdev,
  78                           void ( * set_drvdata ) ( void *hwdev, void *priv ),
  79                           struct device *dev,
  80                           int ( * probe ) ( struct nic *nic, void *hwdev ),
  81                           void ( * disable ) ( struct nic *nic, void *hwdev ));
  82 void legacy_remove ( void *hwdev,
  83                      void * ( * get_drvdata ) ( void *hwdev ),
  84                      void ( * disable ) ( struct nic *nic, void *hwdev ) );
  85
  86 #define PCI_DRIVER(_name,_ids,_class)                                     \
  87         static inline int                                                 \
  88         _name ## _pci_legacy_probe ( struct pci_device *pci,              \
  89                                      const struct pci_device_id *id );    \
  90         static inline void                                                \
  91         _name ## _pci_legacy_remove ( struct pci_device *pci );           \
  92         struct pci_driver _name __pci_driver = {                          \
  93                 .ids = _ids,                                              \
  94                 .id_count = sizeof ( _ids ) / sizeof ( _ids[0] ),         \
  95                 .probe = _name ## _pci_legacy_probe,                      \
  96                 .remove = _name ## _pci_legacy_remove,                    \
  97         };                                                                \
  98         REQUIRE_OBJECT ( pci );
  99
 100 static inline void legacy_pci_set_drvdata ( void *hwdev, void *priv ) {
 101         pci_set_drvdata ( hwdev, priv );
 102 }
 103 static inline void * legacy_pci_get_drvdata ( void *hwdev ) {
 104         return pci_get_drvdata ( hwdev );
 105 }
 106
 107 #define ISAPNP_DRIVER(_name,_ids)                                         \
 108         static inline int                                                 \
 109         _name ## _isapnp_legacy_probe ( struct isapnp_device *isapnp,     \
 110                                         const struct isapnp_device_id *id ); \
 111         static inline void                                                \
 112         _name ## _isapnp_legacy_remove ( struct isapnp_device *isapnp );  \
 113         struct isapnp_driver _name __isapnp_driver = {                    \
 114                 .ids = _ids,                                              \
 115                 .id_count = sizeof ( _ids ) / sizeof ( _ids[0] ),         \
 116                 .probe = _name ## _isapnp_legacy_probe,                   \
 117                 .remove = _name ## _isapnp_legacy_remove,                 \
 118         };                                                                \
 119         REQUIRE_OBJECT ( isapnp );
 120
 121 static inline void legacy_isapnp_set_drvdata ( void *hwdev, void *priv ) {
 122         isapnp_set_drvdata ( hwdev, priv );
 123 }
 124 static inline void * legacy_isapnp_get_drvdata ( void *hwdev ) {
 125         return isapnp_get_drvdata ( hwdev );
 126 }
 127
 128 #define EISA_DRIVER(_name,_ids)                                           \
 129         static inline int                                                 \
 130         _name ## _eisa_legacy_probe ( struct eisa_device *eisa,           \
 131                                       const struct eisa_device_id *id );  \
 132         static inline void                                                \
 133         _name ## _eisa_legacy_remove ( struct eisa_device *eisa );        \
 134         struct eisa_driver _name __eisa_driver = {                        \
 135                 .ids = _ids,                                              \
 136                 .id_count = sizeof ( _ids ) / sizeof ( _ids[0] ),         \
 137                 .probe = _name ## _eisa_legacy_probe,                     \
 138                 .remove = _name ## _eisa_legacy_remove,                   \
 139         };                                                                \
 140         REQUIRE_OBJECT ( eisa );
 141
 142 static inline void legacy_eisa_set_drvdata ( void *hwdev, void *priv ) {
 143         eisa_set_drvdata ( hwdev, priv );
 144 }
 145 static inline void * legacy_eisa_get_drvdata ( void *hwdev ) {
 146         return eisa_get_drvdata ( hwdev );
 147 }
 148
 149 #define MCA_DRIVER(_name,_ids)                                            \
 150         static inline int                                                 \
 151         _name ## _mca_legacy_probe ( struct mca_device *mca,              \
 152                                      const struct mca_device_id *id );    \
 153         static inline void                                                \
 154         _name ## _mca_legacy_remove ( struct mca_device *mca );           \
 155         struct mca_driver _name __mca_driver = {                          \
 156                 .ids = _ids,                                              \
 157                 .id_count = sizeof ( _ids ) / sizeof ( _ids[0] ),         \
 158                 .probe = _name ## _mca_legacy_probe,                      \
 159                 .remove = _name ## _mca_legacy_remove,                    \
 160         };                                                                \
 161         REQUIRE_OBJECT ( mca );
 162
 163 static inline void legacy_mca_set_drvdata ( void *hwdev, void *priv ) {
 164         mca_set_drvdata ( hwdev, priv );
 165 }
 166 static inline void * legacy_mca_get_drvdata ( void *hwdev ) {
 167         return mca_get_drvdata ( hwdev );
 168 }
 169
 170 #define ISA_DRIVER(_name,_probe_addrs,_probe_addr,_vendor_id,_prod_id)    \
 171         static inline int                                                 \
 172         _name ## _isa_legacy_probe ( struct isa_device *isa );            \
 173         static inline int                                                 \
 174         _name ## _isa_legacy_probe_at_addr ( struct isa_device *isa ) {   \
 175                 if ( ! _probe_addr ( isa->ioaddr ) )                      \
 176                         return -ENODEV;                                   \
 177                 return _name ## _isa_legacy_probe ( isa );                \
 178         }                                                                 \
 179         static inline void                                                \
 180         _name ## _isa_legacy_remove ( struct isa_device *isa );           \
 181         static const char _name ## _text[];                               \
 182         struct isa_driver _name __isa_driver = {                          \
 183                 .name = _name ## _text,                                   \
 184                 .probe_addrs = _probe_addrs,                              \
 185                 .addr_count = ( sizeof ( _probe_addrs ) /                 \
 186                                 sizeof ( _probe_addrs[0] ) ),             \
 187                 .vendor_id = _vendor_id,                                  \
 188                 .prod_id = _prod_id,                                      \
 189                 .probe = _name ## _isa_legacy_probe_at_addr,              \
 190                 .remove = _name ## _isa_legacy_remove,                    \
 191         };                                                                \
 192         REQUIRE_OBJECT ( isa );
 193
 194 static inline void legacy_isa_set_drvdata ( void *hwdev, void *priv ) {
 195         isa_set_drvdata ( hwdev, priv );
 196 }
 197 static inline void * legacy_isa_get_drvdata ( void *hwdev ) {
 198         return isa_get_drvdata ( hwdev );
 199 }
 200
 201 #undef DRIVER
 202 #define DRIVER(_name_text,_unused2,_unused3,_name,_probe,_disable)        \
 203         static const char _name ## _text[] = _name_text;                  \
 204         static inline int                                                 \
 205         _name ## _probe ( struct nic *nic, void *hwdev ) {                \
 206                 return _probe ( nic, hwdev );                             \
 207         }                                                                 \
 208         static inline void                                                \
 209         _name ## _disable ( struct nic *nic, void *hwdev ) {              \
 210                 void ( * _unsafe_disable ) () = _disable;                 \
 211                 _unsafe_disable ( nic, hwdev );                           \
 212         }                                                                 \
 213         static inline int                                                 \
 214         _name ## _pci_legacy_probe ( struct pci_device *pci,              \
 215                             const struct pci_device_id *id __unused ) {   \
 216                 return legacy_probe ( pci, legacy_pci_set_drvdata,        \
 217                                       &pci->dev, _name ## _probe,         \
 218                                       _name ## _disable );                \
 219         }                                                                 \
 220         static inline void                                                \
 221         _name ## _pci_legacy_remove ( struct pci_device *pci ) {          \
 222                 return legacy_remove ( pci, legacy_pci_get_drvdata,       \
 223                                        _name ## _disable );               \
 224         }                                                                 \
 225         static inline int                                                 \
 226         _name ## _isapnp_legacy_probe ( struct isapnp_device *isapnp,     \
 227                          const struct isapnp_device_id *id __unused ) {   \
 228                 return legacy_probe ( isapnp, legacy_isapnp_set_drvdata,  \
 229                                       &isapnp->dev, _name ## _probe,      \
 230                                       _name ## _disable );                \
 231         }                                                                 \
 232         static inline void                                                \
 233         _name ## _isapnp_legacy_remove ( struct isapnp_device *isapnp ) { \
 234                 return legacy_remove ( isapnp, legacy_isapnp_get_drvdata, \
 235                                        _name ## _disable );               \
 236         }                                                                 \
 237         static inline int                                                 \
 238         _name ## _eisa_legacy_probe ( struct eisa_device *eisa,           \
 239                              const struct eisa_device_id *id __unused ) { \
 240                 return legacy_probe ( eisa, legacy_eisa_set_drvdata,      \
 241                                       &eisa->dev, _name ## _probe,        \
 242                                       _name ## _disable );                \
 243         }                                                                 \
 244         static inline void                                                \
 245         _name ## _eisa_legacy_remove ( struct eisa_device *eisa ) {       \
 246                 return legacy_remove ( eisa, legacy_eisa_get_drvdata,     \
 247                                        _name ## _disable );               \
 248         }                                                                 \
 249         static inline int                                                 \
 250         _name ## _mca_legacy_probe ( struct mca_device *mca,              \
 251                               const struct mca_device_id *id __unused ) { \
 252                 return legacy_probe ( mca, legacy_mca_set_drvdata,        \
 253                                       &mca->dev, _name ## _probe,         \
 254                                       _name ## _disable );                \
 255         }                                                                 \
 256         static inline void                                                \
 257         _name ## _mca_legacy_remove ( struct mca_device *mca ) {          \
 258                 return legacy_remove ( mca, legacy_mca_get_drvdata,       \
 259                                        _name ## _disable );               \
 260         }                                                                 \
 261         static inline int                                                 \
 262         _name ## _isa_legacy_probe ( struct isa_device *isa ) {           \
 263                 return legacy_probe ( isa, legacy_isa_set_drvdata,        \
 264                                       &isa->dev, _name ## _probe,         \
 265                                       _name ## _disable );                \
 266         }                                                                 \
 267         static inline void                                                \
 268         _name ## _isa_legacy_remove ( struct isa_device *isa ) {          \
 269                 return legacy_remove ( isa, legacy_isa_get_drvdata,       \
 270                                        _name ## _disable );               \
 271         }
 272
 273 #endif  /* NIC_H */