This source file includes following definitions.
- mdiodev_set_drvdata
- mdiodev_get_drvdata
- mdio_phy_id_is_c45
- mdio_phy_id_prtad
- mdio_phy_id_devad
- mdio45_ethtool_gset
- mdio45_ethtool_ksettings_get
- mmd_eee_cap_to_ethtool_sup_t
- mmd_eee_adv_to_ethtool_adv_t
- ethtool_adv_to_mmd_eee_adv_t
- linkmode_adv_to_mii_10gbt_adv_t
- mii_10gbt_stat_mod_linkmode_lpa_t
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6 #ifndef __LINUX_MDIO_H__
7 #define __LINUX_MDIO_H__
8
9 #include <uapi/linux/mdio.h>
10 #include <linux/mod_devicetable.h>
11
12 struct gpio_desc;
13 struct mii_bus;
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18
19
20 enum mdio_mutex_lock_class {
21 MDIO_MUTEX_NORMAL,
22 MDIO_MUTEX_MUX,
23 MDIO_MUTEX_NESTED,
24 };
25
26 struct mdio_device {
27 struct device dev;
28
29 struct mii_bus *bus;
30 char modalias[MDIO_NAME_SIZE];
31
32 int (*bus_match)(struct device *dev, struct device_driver *drv);
33 void (*device_free)(struct mdio_device *mdiodev);
34 void (*device_remove)(struct mdio_device *mdiodev);
35
36
37 int addr;
38 int flags;
39 struct gpio_desc *reset_gpio;
40 struct reset_control *reset_ctrl;
41 unsigned int reset_assert_delay;
42 unsigned int reset_deassert_delay;
43 };
44 #define to_mdio_device(d) container_of(d, struct mdio_device, dev)
45
46
47 struct mdio_driver_common {
48 struct device_driver driver;
49 int flags;
50 };
51 #define MDIO_DEVICE_FLAG_PHY 1
52 #define to_mdio_common_driver(d) \
53 container_of(d, struct mdio_driver_common, driver)
54
55
56 struct mdio_driver {
57 struct mdio_driver_common mdiodrv;
58
59
60
61
62
63 int (*probe)(struct mdio_device *mdiodev);
64
65
66 void (*remove)(struct mdio_device *mdiodev);
67 };
68 #define to_mdio_driver(d) \
69 container_of(to_mdio_common_driver(d), struct mdio_driver, mdiodrv)
70
71
72 static inline void mdiodev_set_drvdata(struct mdio_device *mdio, void *data)
73 {
74 dev_set_drvdata(&mdio->dev, data);
75 }
76
77 static inline void *mdiodev_get_drvdata(struct mdio_device *mdio)
78 {
79 return dev_get_drvdata(&mdio->dev);
80 }
81
82 void mdio_device_free(struct mdio_device *mdiodev);
83 struct mdio_device *mdio_device_create(struct mii_bus *bus, int addr);
84 int mdio_device_register(struct mdio_device *mdiodev);
85 void mdio_device_remove(struct mdio_device *mdiodev);
86 void mdio_device_reset(struct mdio_device *mdiodev, int value);
87 int mdio_driver_register(struct mdio_driver *drv);
88 void mdio_driver_unregister(struct mdio_driver *drv);
89 int mdio_device_bus_match(struct device *dev, struct device_driver *drv);
90
91 static inline bool mdio_phy_id_is_c45(int phy_id)
92 {
93 return (phy_id & MDIO_PHY_ID_C45) && !(phy_id & ~MDIO_PHY_ID_C45_MASK);
94 }
95
96 static inline __u16 mdio_phy_id_prtad(int phy_id)
97 {
98 return (phy_id & MDIO_PHY_ID_PRTAD) >> 5;
99 }
100
101 static inline __u16 mdio_phy_id_devad(int phy_id)
102 {
103 return phy_id & MDIO_PHY_ID_DEVAD;
104 }
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119
120 struct mdio_if_info {
121 int prtad;
122 u32 mmds;
123 unsigned mode_support;
124
125 struct net_device *dev;
126 int (*mdio_read)(struct net_device *dev, int prtad, int devad,
127 u16 addr);
128 int (*mdio_write)(struct net_device *dev, int prtad, int devad,
129 u16 addr, u16 val);
130 };
131
132 #define MDIO_PRTAD_NONE (-1)
133 #define MDIO_DEVAD_NONE (-1)
134 #define MDIO_SUPPORTS_C22 1
135 #define MDIO_SUPPORTS_C45 2
136 #define MDIO_EMULATE_C22 4
137
138 struct ethtool_cmd;
139 struct ethtool_pauseparam;
140 extern int mdio45_probe(struct mdio_if_info *mdio, int prtad);
141 extern int mdio_set_flag(const struct mdio_if_info *mdio,
142 int prtad, int devad, u16 addr, int mask,
143 bool sense);
144 extern int mdio45_links_ok(const struct mdio_if_info *mdio, u32 mmds);
145 extern int mdio45_nway_restart(const struct mdio_if_info *mdio);
146 extern void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio,
147 struct ethtool_cmd *ecmd,
148 u32 npage_adv, u32 npage_lpa);
149 extern void
150 mdio45_ethtool_ksettings_get_npage(const struct mdio_if_info *mdio,
151 struct ethtool_link_ksettings *cmd,
152 u32 npage_adv, u32 npage_lpa);
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163
164 static inline void mdio45_ethtool_gset(const struct mdio_if_info *mdio,
165 struct ethtool_cmd *ecmd)
166 {
167 mdio45_ethtool_gset_npage(mdio, ecmd, 0, 0);
168 }
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179
180 static inline void
181 mdio45_ethtool_ksettings_get(const struct mdio_if_info *mdio,
182 struct ethtool_link_ksettings *cmd)
183 {
184 mdio45_ethtool_ksettings_get_npage(mdio, cmd, 0, 0);
185 }
186
187 extern int mdio_mii_ioctl(const struct mdio_if_info *mdio,
188 struct mii_ioctl_data *mii_data, int cmd);
189
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196
197 static inline u32 mmd_eee_cap_to_ethtool_sup_t(u16 eee_cap)
198 {
199 u32 supported = 0;
200
201 if (eee_cap & MDIO_EEE_100TX)
202 supported |= SUPPORTED_100baseT_Full;
203 if (eee_cap & MDIO_EEE_1000T)
204 supported |= SUPPORTED_1000baseT_Full;
205 if (eee_cap & MDIO_EEE_10GT)
206 supported |= SUPPORTED_10000baseT_Full;
207 if (eee_cap & MDIO_EEE_1000KX)
208 supported |= SUPPORTED_1000baseKX_Full;
209 if (eee_cap & MDIO_EEE_10GKX4)
210 supported |= SUPPORTED_10000baseKX4_Full;
211 if (eee_cap & MDIO_EEE_10GKR)
212 supported |= SUPPORTED_10000baseKR_Full;
213
214 return supported;
215 }
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224
225 static inline u32 mmd_eee_adv_to_ethtool_adv_t(u16 eee_adv)
226 {
227 u32 adv = 0;
228
229 if (eee_adv & MDIO_EEE_100TX)
230 adv |= ADVERTISED_100baseT_Full;
231 if (eee_adv & MDIO_EEE_1000T)
232 adv |= ADVERTISED_1000baseT_Full;
233 if (eee_adv & MDIO_EEE_10GT)
234 adv |= ADVERTISED_10000baseT_Full;
235 if (eee_adv & MDIO_EEE_1000KX)
236 adv |= ADVERTISED_1000baseKX_Full;
237 if (eee_adv & MDIO_EEE_10GKX4)
238 adv |= ADVERTISED_10000baseKX4_Full;
239 if (eee_adv & MDIO_EEE_10GKR)
240 adv |= ADVERTISED_10000baseKR_Full;
241
242 return adv;
243 }
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253 static inline u16 ethtool_adv_to_mmd_eee_adv_t(u32 adv)
254 {
255 u16 reg = 0;
256
257 if (adv & ADVERTISED_100baseT_Full)
258 reg |= MDIO_EEE_100TX;
259 if (adv & ADVERTISED_1000baseT_Full)
260 reg |= MDIO_EEE_1000T;
261 if (adv & ADVERTISED_10000baseT_Full)
262 reg |= MDIO_EEE_10GT;
263 if (adv & ADVERTISED_1000baseKX_Full)
264 reg |= MDIO_EEE_1000KX;
265 if (adv & ADVERTISED_10000baseKX4_Full)
266 reg |= MDIO_EEE_10GKX4;
267 if (adv & ADVERTISED_10000baseKR_Full)
268 reg |= MDIO_EEE_10GKR;
269
270 return reg;
271 }
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280
281 static inline u32 linkmode_adv_to_mii_10gbt_adv_t(unsigned long *advertising)
282 {
283 u32 result = 0;
284
285 if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
286 advertising))
287 result |= MDIO_AN_10GBT_CTRL_ADV2_5G;
288 if (linkmode_test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
289 advertising))
290 result |= MDIO_AN_10GBT_CTRL_ADV5G;
291 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
292 advertising))
293 result |= MDIO_AN_10GBT_CTRL_ADV10G;
294
295 return result;
296 }
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305
306 static inline void mii_10gbt_stat_mod_linkmode_lpa_t(unsigned long *advertising,
307 u32 lpa)
308 {
309 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
310 advertising, lpa & MDIO_AN_10GBT_STAT_LP2_5G);
311 linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
312 advertising, lpa & MDIO_AN_10GBT_STAT_LP5G);
313 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
314 advertising, lpa & MDIO_AN_10GBT_STAT_LP10G);
315 }
316
317 int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
318 int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
319
320 int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
321 int mdiobus_read_nested(struct mii_bus *bus, int addr, u32 regnum);
322 int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
323 int mdiobus_write_nested(struct mii_bus *bus, int addr, u32 regnum, u16 val);
324
325 int mdiobus_register_device(struct mdio_device *mdiodev);
326 int mdiobus_unregister_device(struct mdio_device *mdiodev);
327 bool mdiobus_is_registered_device(struct mii_bus *bus, int addr);
328 struct phy_device *mdiobus_get_phy(struct mii_bus *bus, int addr);
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336
337 #define mdio_module_driver(_mdio_driver) \
338 static int __init mdio_module_init(void) \
339 { \
340 return mdio_driver_register(&_mdio_driver); \
341 } \
342 module_init(mdio_module_init); \
343 static void __exit mdio_module_exit(void) \
344 { \
345 mdio_driver_unregister(&_mdio_driver); \
346 } \
347 module_exit(mdio_module_exit)
348
349 #endif