1 #ifndef LINUX_SSB_H_
2 #define LINUX_SSB_H_
3
4 #include <linux/device.h>
5 #include <linux/list.h>
6 #include <linux/types.h>
7 #include <linux/spinlock.h>
8 #include <linux/pci.h>
9 #include <linux/mod_devicetable.h>
10 #include <linux/dma-mapping.h>
11
12 #include <linux/ssb/ssb_regs.h>
13
14
15 struct pcmcia_device;
16 struct ssb_bus;
17 struct ssb_driver;
18
19 struct ssb_sprom {
20 u8 revision;
21 u8 il0mac[6]; /* MAC address for 802.11b/g */
22 u8 et0mac[6]; /* MAC address for Ethernet */
23 u8 et1mac[6]; /* MAC address for 802.11a */
24 u8 et0phyaddr; /* MII address for enet0 */
25 u8 et1phyaddr; /* MII address for enet1 */
26 u8 et0mdcport; /* MDIO for enet0 */
27 u8 et1mdcport; /* MDIO for enet1 */
28 u8 board_rev; /* Board revision number from SPROM. */
29 u8 country_code; /* Country Code */
30 u8 ant_available_a; /* 2GHz antenna available bits (up to 4) */
31 u8 ant_available_bg; /* 5GHz antenna available bits (up to 4) */
32 u16 pa0b0;
33 u16 pa0b1;
34 u16 pa0b2;
35 u16 pa1b0;
36 u16 pa1b1;
37 u16 pa1b2;
38 u16 pa1lob0;
39 u16 pa1lob1;
40 u16 pa1lob2;
41 u16 pa1hib0;
42 u16 pa1hib1;
43 u16 pa1hib2;
44 u8 gpio0; /* GPIO pin 0 */
45 u8 gpio1; /* GPIO pin 1 */
46 u8 gpio2; /* GPIO pin 2 */
47 u8 gpio3; /* GPIO pin 3 */
48 u16 maxpwr_bg; /* 2.4GHz Amplifier Max Power (in dBm Q5.2) */
49 u16 maxpwr_al; /* 5.2GHz Amplifier Max Power (in dBm Q5.2) */
50 u16 maxpwr_a; /* 5.3GHz Amplifier Max Power (in dBm Q5.2) */
51 u16 maxpwr_ah; /* 5.8GHz Amplifier Max Power (in dBm Q5.2) */
52 u8 itssi_a; /* Idle TSSI Target for A-PHY */
53 u8 itssi_bg; /* Idle TSSI Target for B/G-PHY */
54 u8 tri2g; /* 2.4GHz TX isolation */
55 u8 tri5gl; /* 5.2GHz TX isolation */
56 u8 tri5g; /* 5.3GHz TX isolation */
57 u8 tri5gh; /* 5.8GHz TX isolation */
58 u8 txpid2g[4]; /* 2GHz TX power index */
59 u8 txpid5gl[4]; /* 4.9 - 5.1GHz TX power index */
60 u8 txpid5g[4]; /* 5.1 - 5.5GHz TX power index */
61 u8 txpid5gh[4]; /* 5.5 - ...GHz TX power index */
62 u8 rxpo2g; /* 2GHz RX power offset */
63 u8 rxpo5g; /* 5GHz RX power offset */
64 u8 rssisav2g; /* 2GHz RSSI params */
65 u8 rssismc2g;
66 u8 rssismf2g;
67 u8 bxa2g; /* 2GHz BX arch */
68 u8 rssisav5g; /* 5GHz RSSI params */
69 u8 rssismc5g;
70 u8 rssismf5g;
71 u8 bxa5g; /* 5GHz BX arch */
72 u16 cck2gpo; /* CCK power offset */
73 u32 ofdm2gpo; /* 2.4GHz OFDM power offset */
74 u32 ofdm5glpo; /* 5.2GHz OFDM power offset */
75 u32 ofdm5gpo; /* 5.3GHz OFDM power offset */
76 u32 ofdm5ghpo; /* 5.8GHz OFDM power offset */
77 u16 boardflags_lo; /* Board flags (bits 0-15) */
78 u16 boardflags_hi; /* Board flags (bits 16-31) */
79 u16 boardflags2_lo; /* Board flags (bits 32-47) */
80 u16 boardflags2_hi; /* Board flags (bits 48-63) */
81 /* TODO store board flags in a single u64 */
82
83 /* Antenna gain values for up to 4 antennas
84 * on each band. Values in dBm/4 (Q5.2). Negative gain means the
85 * loss in the connectors is bigger than the gain. */
86 struct {
87 struct {
88 s8 a0, a1, a2, a3;
89 } ghz24; /* 2.4GHz band */
90 struct {
91 s8 a0, a1, a2, a3;
92 } ghz5; /* 5GHz band */
93 } antenna_gain;
94
95 /* TODO - add any parameters needed from rev 2, 3, 4, 5 or 8 SPROMs */
96 };
97
98 /* Information about the PCB the circuitry is soldered on. */
99 struct ssb_boardinfo {
100 u16 vendor;
101 u16 type;
102 u16 rev;
103 };
104
105
106 struct ssb_device;
107 /* Lowlevel read/write operations on the device MMIO.
108 * Internal, don't use that outside of ssb. */
109 struct ssb_bus_ops {
110 u8 (*read8)(struct ssb_device *dev, u16 offset);
111 u16 (*read16)(struct ssb_device *dev, u16 offset);
112 u32 (*read32)(struct ssb_device *dev, u16 offset);
113 void (*write8)(struct ssb_device *dev, u16 offset, u8 value);
114 void (*write16)(struct ssb_device *dev, u16 offset, u16 value);
115 void (*write32)(struct ssb_device *dev, u16 offset, u32 value);
116 #ifdef CONFIG_SSB_BLOCKIO
117 void (*block_read)(struct ssb_device *dev, void *buffer,
118 size_t count, u16 offset, u8 reg_width);
119 void (*block_write)(struct ssb_device *dev, const void *buffer,
120 size_t count, u16 offset, u8 reg_width);
121 #endif
122 };
123
124
125 /* Core-ID values. */
126 #define SSB_DEV_CHIPCOMMON 0x800
127 #define SSB_DEV_ILINE20 0x801
128 #define SSB_DEV_SDRAM 0x803
129 #define SSB_DEV_PCI 0x804
130 #define SSB_DEV_MIPS 0x805
131 #define SSB_DEV_ETHERNET 0x806
132 #define SSB_DEV_V90 0x807
133 #define SSB_DEV_USB11_HOSTDEV 0x808
134 #define SSB_DEV_ADSL 0x809
135 #define SSB_DEV_ILINE100 0x80A
136 #define SSB_DEV_IPSEC 0x80B
137 #define SSB_DEV_PCMCIA 0x80D
138 #define SSB_DEV_INTERNAL_MEM 0x80E
139 #define SSB_DEV_MEMC_SDRAM 0x80F
140 #define SSB_DEV_EXTIF 0x811
141 #define SSB_DEV_80211 0x812
142 #define SSB_DEV_MIPS_3302 0x816
143 #define SSB_DEV_USB11_HOST 0x817
144 #define SSB_DEV_USB11_DEV 0x818
145 #define SSB_DEV_USB20_HOST 0x819
146 #define SSB_DEV_USB20_DEV 0x81A
147 #define SSB_DEV_SDIO_HOST 0x81B
148 #define SSB_DEV_ROBOSWITCH 0x81C
149 #define SSB_DEV_PARA_ATA 0x81D
150 #define SSB_DEV_SATA_XORDMA 0x81E
151 #define SSB_DEV_ETHERNET_GBIT 0x81F
152 #define SSB_DEV_PCIE 0x820
153 #define SSB_DEV_MIMO_PHY 0x821
154 #define SSB_DEV_SRAM_CTRLR 0x822
155 #define SSB_DEV_MINI_MACPHY 0x823
156 #define SSB_DEV_ARM_1176 0x824
157 #define SSB_DEV_ARM_7TDMI 0x825
158
159 /* Vendor-ID values */
160 #define SSB_VENDOR_BROADCOM 0x4243
161
162 /* Some kernel subsystems poke with dev->drvdata, so we must use the
163 * following ugly workaround to get from struct device to struct ssb_device */
164 struct __ssb_dev_wrapper {
165 struct device dev;
166 struct ssb_device *sdev;
167 };
168
169 struct ssb_device {
170 /* Having a copy of the ops pointer in each dev struct
171 * is an optimization. */
172 const struct ssb_bus_ops *ops;
173
174 struct device *dev, *dma_dev;
175
176 struct ssb_bus *bus;
177 struct ssb_device_id id;
178
179 u8 core_index;
180 unsigned int irq;
181
182 /* Internal-only stuff follows. */
183 void *drvdata; /* Per-device data */
184 void *devtypedata; /* Per-devicetype (eg 802.11) data */
185 };
186
187 /* Go from struct device to struct ssb_device. */
188 static inline
dev_to_ssb_dev(struct device * dev)189 struct ssb_device * dev_to_ssb_dev(struct device *dev)
190 {
191 struct __ssb_dev_wrapper *wrap;
192 wrap = container_of(dev, struct __ssb_dev_wrapper, dev);
193 return wrap->sdev;
194 }
195
196 /* Device specific user data */
197 static inline
ssb_set_drvdata(struct ssb_device * dev,void * data)198 void ssb_set_drvdata(struct ssb_device *dev, void *data)
199 {
200 dev->drvdata = data;
201 }
202 static inline
ssb_get_drvdata(struct ssb_device * dev)203 void * ssb_get_drvdata(struct ssb_device *dev)
204 {
205 return dev->drvdata;
206 }
207
208 /* Devicetype specific user data. This is per device-type (not per device) */
209 void ssb_set_devtypedata(struct ssb_device *dev, void *data);
210 static inline
ssb_get_devtypedata(struct ssb_device * dev)211 void * ssb_get_devtypedata(struct ssb_device *dev)
212 {
213 return dev->devtypedata;
214 }
215
216
217 struct ssb_driver {
218 const char *name;
219 const struct ssb_device_id *id_table;
220
221 int (*probe)(struct ssb_device *dev, const struct ssb_device_id *id);
222 void (*remove)(struct ssb_device *dev);
223 int (*suspend)(struct ssb_device *dev, pm_message_t state);
224 int (*resume)(struct ssb_device *dev);
225 void (*shutdown)(struct ssb_device *dev);
226
227 struct device_driver drv;
228 };
229 #define drv_to_ssb_drv(_drv) container_of(_drv, struct ssb_driver, drv)
230
231 extern int __ssb_driver_register(struct ssb_driver *drv, struct module *owner);
ssb_driver_register(struct ssb_driver * drv)232 static inline int ssb_driver_register(struct ssb_driver *drv)
233 {
234 return __ssb_driver_register(drv, THIS_MODULE);
235 }
236 extern void ssb_driver_unregister(struct ssb_driver *drv);
237
238
239
240
241 enum ssb_bustype {
242 SSB_BUSTYPE_SSB, /* This SSB bus is the system bus */
243 SSB_BUSTYPE_PCI, /* SSB is connected to PCI bus */
244 SSB_BUSTYPE_PCMCIA, /* SSB is connected to PCMCIA bus */
245 SSB_BUSTYPE_SDIO, /* SSB is connected to SDIO bus */
246 };
247
248 /* board_vendor */
249 #define SSB_BOARDVENDOR_BCM 0x14E4 /* Broadcom */
250 #define SSB_BOARDVENDOR_DELL 0x1028 /* Dell */
251 #define SSB_BOARDVENDOR_HP 0x0E11 /* HP */
252 /* board_type */
253 #define SSB_BOARD_BCM94306MP 0x0418
254 #define SSB_BOARD_BCM4309G 0x0421
255 #define SSB_BOARD_BCM4306CB 0x0417
256 #define SSB_BOARD_BCM4309MP 0x040C
257 #define SSB_BOARD_MP4318 0x044A
258 #define SSB_BOARD_BU4306 0x0416
259 #define SSB_BOARD_BU4309 0x040A
260 /* chip_package */
261 #define SSB_CHIPPACK_BCM4712S 1 /* Small 200pin 4712 */
262 #define SSB_CHIPPACK_BCM4712M 2 /* Medium 225pin 4712 */
263 #define SSB_CHIPPACK_BCM4712L 0 /* Large 340pin 4712 */
264
265 #include <linux/ssb/ssb_driver_chipcommon.h>
266 #include <linux/ssb/ssb_driver_mips.h>
267 #include <linux/ssb/ssb_driver_extif.h>
268 #include <linux/ssb/ssb_driver_pci.h>
269
270 struct ssb_bus {
271 /* The MMIO area. */
272 void __iomem *mmio;
273
274 const struct ssb_bus_ops *ops;
275
276 /* The core currently mapped into the MMIO window.
277 * Not valid on all host-buses. So don't use outside of SSB. */
278 struct ssb_device *mapped_device;
279 union {
280 /* Currently mapped PCMCIA segment. (bustype == SSB_BUSTYPE_PCMCIA only) */
281 u8 mapped_pcmcia_seg;
282 /* Current SSB base address window for SDIO. */
283 u32 sdio_sbaddr;
284 };
285 /* Lock for core and segment switching.
286 * On PCMCIA-host busses this is used to protect the whole MMIO access. */
287 spinlock_t bar_lock;
288
289 /* The host-bus this backplane is running on. */
290 enum ssb_bustype bustype;
291 /* Pointers to the host-bus. Check bustype before using any of these pointers. */
292 union {
293 /* Pointer to the PCI bus (only valid if bustype == SSB_BUSTYPE_PCI). */
294 struct pci_dev *host_pci;
295 /* Pointer to the PCMCIA device (only if bustype == SSB_BUSTYPE_PCMCIA). */
296 struct pcmcia_device *host_pcmcia;
297 /* Pointer to the SDIO device (only if bustype == SSB_BUSTYPE_SDIO). */
298 struct sdio_func *host_sdio;
299 };
300
301 /* See enum ssb_quirks */
302 unsigned int quirks;
303
304 #ifdef CONFIG_SSB_SPROM
305 /* Mutex to protect the SPROM writing. */
306 struct mutex sprom_mutex;
307 #endif
308
309 /* ID information about the Chip. */
310 u16 chip_id;
311 u16 chip_rev;
312 u16 sprom_offset;
313 u16 sprom_size; /* number of words in sprom */
314 u8 chip_package;
315
316 /* List of devices (cores) on the backplane. */
317 struct ssb_device devices[SSB_MAX_NR_CORES];
318 u8 nr_devices;
319
320 /* Software ID number for this bus. */
321 unsigned int busnumber;
322
323 /* The ChipCommon device (if available). */
324 struct ssb_chipcommon chipco;
325 /* The PCI-core device (if available). */
326 struct ssb_pcicore pcicore;
327 /* The MIPS-core device (if available). */
328 struct ssb_mipscore mipscore;
329 /* The EXTif-core device (if available). */
330 struct ssb_extif extif;
331
332 /* The following structure elements are not available in early
333 * SSB initialization. Though, they are available for regular
334 * registered drivers at any stage. So be careful when
335 * using them in the ssb core code. */
336
337 /* ID information about the PCB. */
338 struct ssb_boardinfo boardinfo;
339 /* Contents of the SPROM. */
340 struct ssb_sprom sprom;
341 /* If the board has a cardbus slot, this is set to true. */
342 bool has_cardbus_slot;
343
344 #ifdef CONFIG_SSB_EMBEDDED
345 /* Lock for GPIO register access. */
346 spinlock_t gpio_lock;
347 #endif /* EMBEDDED */
348
349 /* Internal-only stuff follows. Do not touch. */
350 struct list_head list;
351 #ifdef CONFIG_SSB_DEBUG
352 /* Is the bus already powered up? */
353 bool powered_up;
354 int power_warn_count;
355 #endif /* DEBUG */
356 };
357
358 enum ssb_quirks {
359 /* SDIO connected card requires performing a read after writing a 32-bit value */
360 SSB_QUIRK_SDIO_READ_AFTER_WRITE32 = (1 << 0),
361 };
362
363 /* The initialization-invariants. */
364 struct ssb_init_invariants {
365 /* Versioning information about the PCB. */
366 struct ssb_boardinfo boardinfo;
367 /* The SPROM information. That's either stored in an
368 * EEPROM or NVRAM on the board. */
369 struct ssb_sprom sprom;
370 /* If the board has a cardbus slot, this is set to true. */
371 bool has_cardbus_slot;
372 };
373 /* Type of function to fetch the invariants. */
374 typedef int (*ssb_invariants_func_t)(struct ssb_bus *bus,
375 struct ssb_init_invariants *iv);
376
377 /* Register a SSB system bus. get_invariants() is called after the
378 * basic system devices are initialized.
379 * The invariants are usually fetched from some NVRAM.
380 * Put the invariants into the struct pointed to by iv. */
381 extern int ssb_bus_ssbbus_register(struct ssb_bus *bus,
382 unsigned long baseaddr,
383 ssb_invariants_func_t get_invariants);
384 #ifdef CONFIG_SSB_PCIHOST
385 extern int ssb_bus_pcibus_register(struct ssb_bus *bus,
386 struct pci_dev *host_pci);
387 #endif /* CONFIG_SSB_PCIHOST */
388 #ifdef CONFIG_SSB_PCMCIAHOST
389 extern int ssb_bus_pcmciabus_register(struct ssb_bus *bus,
390 struct pcmcia_device *pcmcia_dev,
391 unsigned long baseaddr);
392 #endif /* CONFIG_SSB_PCMCIAHOST */
393 #ifdef CONFIG_SSB_SDIOHOST
394 extern int ssb_bus_sdiobus_register(struct ssb_bus *bus,
395 struct sdio_func *sdio_func,
396 unsigned int quirks);
397 #endif /* CONFIG_SSB_SDIOHOST */
398
399
400 extern void ssb_bus_unregister(struct ssb_bus *bus);
401
402 /* Does the device have an SPROM? */
403 extern bool ssb_is_sprom_available(struct ssb_bus *bus);
404
405 /* Set a fallback SPROM.
406 * See kdoc at the function definition for complete documentation. */
407 extern int ssb_arch_set_fallback_sprom(const struct ssb_sprom *sprom);
408
409 /* Suspend a SSB bus.
410 * Call this from the parent bus suspend routine. */
411 extern int ssb_bus_suspend(struct ssb_bus *bus);
412 /* Resume a SSB bus.
413 * Call this from the parent bus resume routine. */
414 extern int ssb_bus_resume(struct ssb_bus *bus);
415
416 extern u32 ssb_clockspeed(struct ssb_bus *bus);
417
418 /* Is the device enabled in hardware? */
419 int ssb_device_is_enabled(struct ssb_device *dev);
420 /* Enable a device and pass device-specific SSB_TMSLOW flags.
421 * If no device-specific flags are available, use 0. */
422 void ssb_device_enable(struct ssb_device *dev, u32 core_specific_flags);
423 /* Disable a device in hardware and pass SSB_TMSLOW flags (if any). */
424 void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags);
425
426
427 /* Device MMIO register read/write functions. */
ssb_read8(struct ssb_device * dev,u16 offset)428 static inline u8 ssb_read8(struct ssb_device *dev, u16 offset)
429 {
430 return dev->ops->read8(dev, offset);
431 }
ssb_read16(struct ssb_device * dev,u16 offset)432 static inline u16 ssb_read16(struct ssb_device *dev, u16 offset)
433 {
434 return dev->ops->read16(dev, offset);
435 }
ssb_read32(struct ssb_device * dev,u16 offset)436 static inline u32 ssb_read32(struct ssb_device *dev, u16 offset)
437 {
438 return dev->ops->read32(dev, offset);
439 }
ssb_write8(struct ssb_device * dev,u16 offset,u8 value)440 static inline void ssb_write8(struct ssb_device *dev, u16 offset, u8 value)
441 {
442 dev->ops->write8(dev, offset, value);
443 }
ssb_write16(struct ssb_device * dev,u16 offset,u16 value)444 static inline void ssb_write16(struct ssb_device *dev, u16 offset, u16 value)
445 {
446 dev->ops->write16(dev, offset, value);
447 }
ssb_write32(struct ssb_device * dev,u16 offset,u32 value)448 static inline void ssb_write32(struct ssb_device *dev, u16 offset, u32 value)
449 {
450 dev->ops->write32(dev, offset, value);
451 }
452 #ifdef CONFIG_SSB_BLOCKIO
ssb_block_read(struct ssb_device * dev,void * buffer,size_t count,u16 offset,u8 reg_width)453 static inline void ssb_block_read(struct ssb_device *dev, void *buffer,
454 size_t count, u16 offset, u8 reg_width)
455 {
456 dev->ops->block_read(dev, buffer, count, offset, reg_width);
457 }
458
ssb_block_write(struct ssb_device * dev,const void * buffer,size_t count,u16 offset,u8 reg_width)459 static inline void ssb_block_write(struct ssb_device *dev, const void *buffer,
460 size_t count, u16 offset, u8 reg_width)
461 {
462 dev->ops->block_write(dev, buffer, count, offset, reg_width);
463 }
464 #endif /* CONFIG_SSB_BLOCKIO */
465
466
467 /* The SSB DMA API. Use this API for any DMA operation on the device.
468 * This API basically is a wrapper that calls the correct DMA API for
469 * the host device type the SSB device is attached to. */
470
471 /* Translation (routing) bits that need to be ORed to DMA
472 * addresses before they are given to a device. */
473 extern u32 ssb_dma_translation(struct ssb_device *dev);
474 #define SSB_DMA_TRANSLATION_MASK 0xC0000000
475 #define SSB_DMA_TRANSLATION_SHIFT 30
476
__ssb_dma_not_implemented(struct ssb_device * dev)477 static inline void __cold __ssb_dma_not_implemented(struct ssb_device *dev)
478 {
479 #ifdef CONFIG_SSB_DEBUG
480 printk(KERN_ERR "SSB: BUG! Calling DMA API for "
481 "unsupported bustype %d\n", dev->bus->bustype);
482 #endif /* DEBUG */
483 }
484
485 #ifdef CONFIG_SSB_PCIHOST
486 /* PCI-host wrapper driver */
487 extern int ssb_pcihost_register(struct pci_driver *driver);
ssb_pcihost_unregister(struct pci_driver * driver)488 static inline void ssb_pcihost_unregister(struct pci_driver *driver)
489 {
490 pci_unregister_driver(driver);
491 }
492
493 static inline
ssb_pcihost_set_power_state(struct ssb_device * sdev,pci_power_t state)494 void ssb_pcihost_set_power_state(struct ssb_device *sdev, pci_power_t state)
495 {
496 if (sdev->bus->bustype == SSB_BUSTYPE_PCI)
497 pci_set_power_state(sdev->bus->host_pci, state);
498 }
499 #else
ssb_pcihost_unregister(struct pci_driver * driver)500 static inline void ssb_pcihost_unregister(struct pci_driver *driver)
501 {
502 }
503
504 static inline
ssb_pcihost_set_power_state(struct ssb_device * sdev,pci_power_t state)505 void ssb_pcihost_set_power_state(struct ssb_device *sdev, pci_power_t state)
506 {
507 }
508 #endif /* CONFIG_SSB_PCIHOST */
509
510
511 /* If a driver is shutdown or suspended, call this to signal
512 * that the bus may be completely powered down. SSB will decide,
513 * if it's really time to power down the bus, based on if there
514 * are other devices that want to run. */
515 extern int ssb_bus_may_powerdown(struct ssb_bus *bus);
516 /* Before initializing and enabling a device, call this to power-up the bus.
517 * If you want to allow use of dynamic-power-control, pass the flag.
518 * Otherwise static always-on powercontrol will be used. */
519 extern int ssb_bus_powerup(struct ssb_bus *bus, bool dynamic_pctl);
520
521
522 /* Various helper functions */
523 extern u32 ssb_admatch_base(u32 adm);
524 extern u32 ssb_admatch_size(u32 adm);
525
526 /* PCI device mapping and fixup routines.
527 * Called from the architecture pcibios init code.
528 * These are only available on SSB_EMBEDDED configurations. */
529 #ifdef CONFIG_SSB_EMBEDDED
530 int ssb_pcibios_plat_dev_init(struct pci_dev *dev);
531 int ssb_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
532 #endif /* CONFIG_SSB_EMBEDDED */
533
534 #endif /* LINUX_SSB_H_ */
535