summaryrefslogtreecommitdiffstats
path: root/include/linux/ssb/ssb.h
blob: f10ed7b4a714b99abac271bbd09a2ec483cf6246 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
#ifndef LINUX_SSB_H_
#define LINUX_SSB_H_

#include <linux/device.h>
#include <linux/list.h>
#include <linux/types.h>
#include <linux/spinlock.h>
#include <linux/pci.h>
#include <linux/mod_devicetable.h>
#include <linux/dma-mapping.h>

#include <linux/ssb/ssb_regs.h>


struct pcmcia_device;
struct ssb_bus;
struct ssb_driver;

struct ssb_sprom {
	u8 revision;
	u8 il0mac[6];		/* MAC address for 802.11b/g */
	u8 et0mac[6];		/* MAC address for Ethernet */
	u8 et1mac[6];		/* MAC address for 802.11a */
	u8 et0phyaddr;		/* MII address for enet0 */
	u8 et1phyaddr;		/* MII address for enet1 */
	u8 et0mdcport;		/* MDIO for enet0 */
	u8 et1mdcport;		/* MDIO for enet1 */
	u16 board_rev;		/* Board revision number from SPROM. */
	u8 country_code;	/* Country Code */
	u16 leddc_on_time;	/* LED Powersave Duty Cycle On Count */
	u16 leddc_off_time;	/* LED Powersave Duty Cycle Off Count */
	u8 ant_available_a;	/* 2GHz antenna available bits (up to 4) */
	u8 ant_available_bg;	/* 5GHz antenna available bits (up to 4) */
	u16 pa0b0;
	u16 pa0b1;
	u16 pa0b2;
	u16 pa1b0;
	u16 pa1b1;
	u16 pa1b2;
	u16 pa1lob0;
	u16 pa1lob1;
	u16 pa1lob2;
	u16 pa1hib0;
	u16 pa1hib1;
	u16 pa1hib2;
	u8 gpio0;		/* GPIO pin 0 */
	u8 gpio1;		/* GPIO pin 1 */
	u8 gpio2;		/* GPIO pin 2 */
	u8 gpio3;		/* GPIO pin 3 */
	u16 maxpwr_bg;		/* 2.4GHz Amplifier Max Power (in dBm Q5.2) */
	u16 maxpwr_al;		/* 5.2GHz Amplifier Max Power (in dBm Q5.2) */
	u16 maxpwr_a;		/* 5.3GHz Amplifier Max Power (in dBm Q5.2) */
	u16 maxpwr_ah;		/* 5.8GHz Amplifier Max Power (in dBm Q5.2) */
	u8 itssi_a;		/* Idle TSSI Target for A-PHY */
	u8 itssi_bg;		/* Idle TSSI Target for B/G-PHY */
	u8 tri2g;		/* 2.4GHz TX isolation */
	u8 tri5gl;		/* 5.2GHz TX isolation */
	u8 tri5g;		/* 5.3GHz TX isolation */
	u8 tri5gh;		/* 5.8GHz TX isolation */
	u8 txpid2g[4];		/* 2GHz TX power index */
	u8 txpid5gl[4];		/* 4.9 - 5.1GHz TX power index */
	u8 txpid5g[4];		/* 5.1 - 5.5GHz TX power index */
	u8 txpid5gh[4];		/* 5.5 - ...GHz TX power index */
	u8 rxpo2g;		/* 2GHz RX power offset */
	u8 rxpo5g;		/* 5GHz RX power offset */
	u8 rssisav2g;		/* 2GHz RSSI params */
	u8 rssismc2g;
	u8 rssismf2g;
	u8 bxa2g;		/* 2GHz BX arch */
	u8 rssisav5g;		/* 5GHz RSSI params */
	u8 rssismc5g;
	u8 rssismf5g;
	u8 bxa5g;		/* 5GHz BX arch */
	u16 cck2gpo;		/* CCK power offset */
	u32 ofdm2gpo;		/* 2.4GHz OFDM power offset */
	u32 ofdm5glpo;		/* 5.2GHz OFDM power offset */
	u32 ofdm5gpo;		/* 5.3GHz OFDM power offset */
	u32 ofdm5ghpo;		/* 5.8GHz OFDM power offset */
	u16 boardflags_lo;	/* Board flags (bits 0-15) */
	u16 boardflags_hi;	/* Board flags (bits 16-31) */
	u16 boardflags2_lo;	/* Board flags (bits 32-47) */
	u16 boardflags2_hi;	/* Board flags (bits 48-63) */
	/* TODO store board flags in a single u64 */

	/* Antenna gain values for up to 4 antennas
	 * on each band. Values in dBm/4 (Q5.2). Negative gain means the
	 * loss in the connectors is bigger than the gain. */
	struct {
		struct {
			s8 a0, a1, a2, a3;
		} ghz24;	/* 2.4GHz band */
		struct {
			s8 a0, a1, a2, a3;
		} ghz5;		/* 5GHz band */
	} antenna_gain;

	/* TODO - add any parameters needed from rev 2, 3, 4, 5 or 8 SPROMs */
};

/* Information about the PCB the circuitry is soldered on. */
struct ssb_boardinfo {
	u16 vendor;
	u16 type;
	u8  rev;
};


struct ssb_device;
/* Lowlevel read/write operations on the device MMIO.
 * Internal, don't use that outside of ssb. */
struct ssb_bus_ops {
	u8 (*read8)(struct ssb_device *dev, u16 offset);
	u16 (*read16)(struct ssb_device *dev, u16 offset);
	u32 (*read32)(struct ssb_device *dev, u16 offset);
	void (*write8)(struct ssb_device *dev, u16 offset, u8 value);
	void (*write16)(struct ssb_device *dev, u16 offset, u16 value);
	void (*write32)(struct ssb_device *dev, u16 offset, u32 value);
#ifdef CONFIG_SSB_BLOCKIO
	void (*block_read)(struct ssb_device *dev, void *buffer,
			   size_t count, u16 offset, u8 reg_width);
	void (*block_write)(struct ssb_device *dev, const void *buffer,
			    size_t count, u16 offset, u8 reg_width);
#endif
};


/* Core-ID values. */
#define SSB_DEV_CHIPCOMMON	0x800
#define SSB_DEV_ILINE20		0x801
#define SSB_DEV_SDRAM		0x803
#define SSB_DEV_PCI		0x804
#define SSB_DEV_MIPS		0x805
#define SSB_DEV_ETHERNET	0x806
#define SSB_DEV_V90		0x807
#define SSB_DEV_USB11_HOSTDEV	0x808
#define SSB_DEV_ADSL		0x809
#define SSB_DEV_ILINE100	0x80A
#define SSB_DEV_IPSEC		0x80B
#define SSB_DEV_PCMCIA		0x80D
#define SSB_DEV_INTERNAL_MEM	0x80E
#define SSB_DEV_MEMC_SDRAM	0x80F
#define SSB_DEV_EXTIF		0x811
#define SSB_DEV_80211		0x812
#define SSB_DEV_MIPS_3302	0x816
#define SSB_DEV_USB11_HOST	0x817
#define SSB_DEV_USB11_DEV	0x818
#define SSB_DEV_USB20_HOST	0x819
#define SSB_DEV_USB20_DEV	0x81A
#define SSB_DEV_SDIO_HOST	0x81B
#define SSB_DEV_ROBOSWITCH	0x81C
#define SSB_DEV_PARA_ATA	0x81D
#define SSB_DEV_SATA_XORDMA	0x81E
#define SSB_DEV_ETHERNET_GBIT	0x81F
#define SSB_DEV_PCIE		0x820
#define SSB_DEV_MIMO_PHY	0x821
#define SSB_DEV_SRAM_CTRLR	0x822
#define SSB_DEV_MINI_MACPHY	0x823
#define SSB_DEV_ARM_1176	0x824
#define SSB_DEV_ARM_7TDMI	0x825

/* Vendor-ID values */
#define SSB_VENDOR_BROADCOM	0x4243

/* Some kernel subsystems poke with dev->drvdata, so we must use the
 * following ugly workaround to get from struct device to struct ssb_device */
struct __ssb_dev_wrapper {
	struct device dev;
	struct ssb_device *sdev;
};

struct ssb_device {
	/* Having a copy of the ops pointer in each dev struct
	 * is an optimization. */
	const struct ssb_bus_ops *ops;

	struct device *dev, *dma_dev;

	struct ssb_bus *bus;
	struct ssb_device_id id;

	u8 core_index;
	unsigned int irq;

	/* Internal-only stuff follows. */
	void *drvdata;		/* Per-device data */
	void *devtypedata;	/* Per-devicetype (eg 802.11) data */
};

/* Go from struct device to struct ssb_device. */
static inline
struct ssb_device * dev_to_ssb_dev(struct device *dev)
{
	struct __ssb_dev_wrapper *wrap;
	wrap = container_of(dev, struct __ssb_dev_wrapper, dev);
	return wrap->sdev;
}

/* Device specific user data */
static inline
void ssb_set_drvdata(struct ssb_device *dev, void *data)
{
	dev->drvdata = data;
}
static inline
void * ssb_get_drvdata(struct ssb_device *dev)
{
	return dev->drvdata;
}

/* Devicetype specific user data. This is per device-type (not per device) */
void ssb_set_devtypedata(struct ssb_device *dev, void *data);
static inline
void * ssb_get_devtypedata(struct ssb_device *dev)
{
	return dev->devtypedata;
}


struct ssb_driver {
	const char *name;
	const struct ssb_device_id *id_table;

	int (*probe)(struct ssb_device *dev, const struct ssb_device_id *id);
	void (*remove)(struct ssb_device *dev);
	int (*suspend)(struct ssb_device *dev, pm_message_t state);
	int (*resume)(struct ssb_device *dev);
	void (*shutdown)(struct ssb_device *dev);

	struct device_driver drv;
};
#define drv_to_ssb_drv(_drv) container_of(_drv, struct ssb_driver, drv)

extern int __ssb_driver_register(struct ssb_driver *drv, struct module *owner);
static inline int ssb_driver_register(struct ssb_driver *drv)
{
	return __ssb_driver_register(drv, THIS_MODULE);
}
extern void ssb_driver_unregister(struct ssb_driver *drv);




enum ssb_bustype {
	SSB_BUSTYPE_SSB,	/* This SSB bus is the system bus */
	SSB_BUSTYPE_PCI,	/* SSB is connected to PCI bus */
	SSB_BUSTYPE_PCMCIA,	/* SSB is connected to PCMCIA bus */
	SSB_BUSTYPE_SDIO,	/* SSB is connected to SDIO bus */
};

/* board_vendor */
#define SSB_BOARDVENDOR_BCM	0x14E4	/* Broadcom */
#define SSB_BOARDVENDOR_DELL	0x1028	/* Dell */
#define SSB_BOARDVENDOR_HP	0x0E11	/* HP */
/* board_type */
#define SSB_BOARD_BCM94306MP	0x0418
#define SSB_BOARD_BCM4309G	0x0421
#define SSB_BOARD_BCM4306CB	0x0417
#define SSB_BOARD_BCM4309MP	0x040C
#define SSB_BOARD_MP4318	0x044A
#define SSB_BOARD_BU4306	0x0416
#define SSB_BOARD_BU4309	0x040A
/* chip_package */
#define SSB_CHIPPACK_BCM4712S	1	/* Small 200pin 4712 */
#define SSB_CHIPPACK_BCM4712M	2	/* Medium 225pin 4712 */
#define SSB_CHIPPACK_BCM4712L	0	/* Large 340pin 4712 */

#include <linux/ssb/ssb_driver_chipcommon.h>
#include <linux/ssb/ssb_driver_mips.h>
#include <linux/ssb/ssb_driver_extif.h>
#include <linux/ssb/ssb_driver_pci.h>

struct ssb_bus {
	/* The MMIO area. */
	void __iomem *mmio;

	const struct ssb_bus_ops *ops;

	/* The core currently mapped into the MMIO window.
	 * Not valid on all host-buses. So don't use outside of SSB. */
	struct ssb_device *mapped_device;
	union {
		/* Currently mapped PCMCIA segment. (bustype == SSB_BUSTYPE_PCMCIA only) */
		u8 mapped_pcmcia_seg;
		/* Current SSB base address window for SDIO. */
		u32 sdio_sbaddr;
	};
	/* Lock for core and segment switching.
	 * On PCMCIA-host busses this is used to protect the whole MMIO access. */
	spinlock_t bar_lock;

	/* The host-bus this backplane is running on. */
	enum ssb_bustype bustype;
	/* Pointers to the host-bus. Check bustype before using any of these pointers. */
	union {
		/* Pointer to the PCI bus (only valid if bustype == SSB_BUSTYPE_PCI). */
		struct pci_dev *host_pci;
		/* Pointer to the PCMCIA device (only if bustype == SSB_BUSTYPE_PCMCIA). */
		struct pcmcia_device *host_pcmcia;
		/* Pointer to the SDIO device (only if bustype == SSB_BUSTYPE_SDIO). */
		struct sdio_func *host_sdio;
	};

	/* See enum ssb_quirks */
	unsigned int quirks;

#ifdef CONFIG_SSB_SPROM
	/* Mutex to protect the SPROM writing. */
	struct mutex sprom_mutex;
#endif

	/* ID information about the Chip. */
	u16 chip_id;
	u8 chip_rev;
	u16 sprom_offset;
	u16 sprom_size;		/* number of words in sprom */
	u8 chip_package;

	/* List of devices (cores) on the backplane. */
	struct ssb_device devices[SSB_MAX_NR_CORES];
	u8 nr_devices;

	/* Software ID number for this bus. */
	unsigned int busnumber;

	/* The ChipCommon device (if available). */
	struct ssb_chipcommon chipco;
	/* The PCI-core device (if available). */
	struct ssb_pcicore pcicore;
	/* The MIPS-core device (if available). */
	struct ssb_mipscore mipscore;
	/* The EXTif-core device (if available). */
	struct ssb_extif extif;

	/* The following structure elements are not available in early
	 * SSB initialization. Though, they are available for regular
	 * registered drivers at any stage. So be careful when
	 * using them in the ssb core code. */

	/* ID information about the PCB. */
	struct ssb_boardinfo boardinfo;
	/* Contents of the SPROM. */
	struct ssb_sprom sprom;
	/* If the board has a cardbus slot, this is set to true. */
	bool has_cardbus_slot;

#ifdef CONFIG_SSB_EMBEDDED
	/* Lock for GPIO register access. */
	spinlock_t gpio_lock;
#endif /* EMBEDDED */

	/* Internal-only stuff follows. Do not touch. */
	struct list_head list;
#ifdef CONFIG_SSB_DEBUG
	/* Is the bus already powered up? */
	bool powered_up;
	int power_warn_count;
#endif /* DEBUG */
};

enum ssb_quirks {
	/* SDIO connected card requires performing a read after writing a 32-bit value */
	SSB_QUIRK_SDIO_READ_AFTER_WRITE32	= (1 << 0),
};

/* The initialization-invariants. */
struct ssb_init_invariants {
	/* Versioning information about the PCB. */
	struct ssb_boardinfo boardinfo;
	/* The SPROM information. That's either stored in an
	 * EEPROM or NVRAM on the board. */
	struct ssb_sprom sprom;
	/* If the board has a cardbus slot, this is set to true. */
	bool has_cardbus_slot;
};
/* Type of function to fetch the invariants. */
typedef int (*ssb_invariants_func_t)(struct ssb_bus *bus,
				     struct ssb_init_invariants *iv);

/* Register a SSB system bus. get_invariants() is called after the
 * basic system devices are initialized.
 * The invariants are usually fetched from some NVRAM.
 * Put the invariants into the struct pointed to by iv. */
extern int ssb_bus_ssbbus_register(struct ssb_bus *bus,
				   unsigned long baseaddr,
				   ssb_invariants_func_t get_invariants);
#ifdef CONFIG_SSB_PCIHOST
extern int ssb_bus_pcibus_register(struct ssb_bus *bus,
				   struct pci_dev *host_pci);
#endif /* CONFIG_SSB_PCIHOST */
#ifdef CONFIG_SSB_PCMCIAHOST
extern int ssb_bus_pcmciabus_register(struct ssb_bus *bus,
				      struct pcmcia_device *pcmcia_dev,
				      unsigned long baseaddr);
#endif /* CONFIG_SSB_PCMCIAHOST */
#ifdef CONFIG_SSB_SDIOHOST
extern int ssb_bus_sdiobus_register(struct ssb_bus *bus,
				    struct sdio_func *sdio_func,
				    unsigned int quirks);
#endif /* CONFIG_SSB_SDIOHOST */


extern void ssb_bus_unregister(struct ssb_bus *bus);

/* Does the device have an SPROM? */
extern bool ssb_is_sprom_available(struct ssb_bus *bus);

/* Set a fallback SPROM.
 * See kdoc at the function definition for complete documentation. */
extern int ssb_arch_register_fallback_sprom(
		int (*sprom_callback)(struct ssb_bus *bus,
		struct ssb_sprom *out));

/* Suspend a SSB bus.
 * Call this from the parent bus suspend routine. */
extern int ssb_bus_suspend(struct ssb_bus *bus);
/* Resume a SSB bus.
 * Call this from the parent bus resume routine. */
extern int ssb_bus_resume(struct ssb_bus *bus);

extern u32 ssb_clockspeed(struct ssb_bus *bus);

/* Is the device enabled in hardware? */
int ssb_device_is_enabled(struct ssb_device *dev);
/* Enable a device and pass device-specific SSB_TMSLOW flags.
 * If no device-specific flags are available, use 0. */
void ssb_device_enable(struct ssb_device *dev, u32 core_specific_flags);
/* Disable a device in hardware and pass SSB_TMSLOW flags (if any). */
void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags);


/* Device MMIO register read/write functions. */
static inline u8 ssb_read8(struct ssb_device *dev, u16 offset)
{
	return dev->ops->read8(dev, offset);
}
static inline u16 ssb_read16(struct ssb_device *dev, u16 offset)
{
	return dev->ops->read16(dev, offset);
}
static inline u32 ssb_read32(struct ssb_device *dev, u16 offset)
{
	return dev->ops->read32(dev, offset);
}
static inline void ssb_write8(struct ssb_device *dev, u16 offset, u8 value)
{
	dev->ops->write8(dev, offset, value);
}
static inline void ssb_write16(struct ssb_device *dev, u16 offset, u16 value)
{
	dev->ops->write16(dev, offset, value);
}
static inline void ssb_write32(struct ssb_device *dev, u16 offset, u32 value)
{
	dev->ops->write32(dev, offset, value);
}
#ifdef CONFIG_SSB_BLOCKIO
static inline void ssb_block_read(struct ssb_device *dev, void *buffer,
				  size_t count, u16 offset, u8 reg_width)
{
	dev->ops->block_read(dev, buffer, count, offset, reg_width);
}

static inline void ssb_block_write(struct ssb_device *dev, const void *buffer,
				   size_t count, u16 offset, u8 reg_width)
{
	dev->ops->block_write(dev, buffer, count, offset, reg_width);
}
#endif /* CONFIG_SSB_BLOCKIO */


/* The SSB DMA API. Use this API for any DMA operation on the device.
 * This API basically is a wrapper that calls the correct DMA API for
 * the host device type the SSB device is attached to. */

/* Translation (routing) bits that need to be ORed to DMA
 * addresses before they are given to a device. */
extern u32 ssb_dma_translation(struct ssb_device *dev);
#define SSB_DMA_TRANSLATION_MASK	0xC0000000
#define SSB_DMA_TRANSLATION_SHIFT	30

static inline void __cold __ssb_dma_not_implemented(struct ssb_device *dev)
{
#ifdef CONFIG_SSB_DEBUG
	printk(KERN_ERR "SSB: BUG! Calling DMA API for "
	       "unsupported bustype %d\n", dev->bus->bustype);
#endif /* DEBUG */
}

#ifdef CONFIG_SSB_PCIHOST
/* PCI-host wrapper driver */
extern int ssb_pcihost_register(struct pci_driver *driver);
static inline void ssb_pcihost_unregister(struct pci_driver *driver)
{
	pci_unregister_driver(driver);
}

static inline
void ssb_pcihost_set_power_state(struct ssb_device *sdev, pci_power_t state)
{
	if (sdev->bus->bustype == SSB_BUSTYPE_PCI)
		pci_set_power_state(sdev->bus->host_pci, state);
}
#else
static inline void ssb_pcihost_unregister(struct pci_driver *driver)
{
}

static inline
void ssb_pcihost_set_power_state(struct ssb_device *sdev, pci_power_t state)
{
}
#endif /* CONFIG_SSB_PCIHOST */


/* If a driver is shutdown or suspended, call this to signal
 * that the bus may be completely powered down. SSB will decide,
 * if it's really time to power down the bus, based on if there
 * are other devices that want to run. */
extern int ssb_bus_may_powerdown(struct ssb_bus *bus);
/* Before initializing and enabling a device, call this to power-up the bus.
 * If you want to allow use of dynamic-power-control, pass the flag.
 * Otherwise static always-on powercontrol will be used. */
extern int ssb_bus_powerup(struct ssb_bus *bus, bool dynamic_pctl);

extern void ssb_commit_settings(struct ssb_bus *bus);

/* Various helper functions */
extern u32 ssb_admatch_base(u32 adm);
extern u32 ssb_admatch_size(u32 adm);

/* PCI device mapping and fixup routines.
 * Called from the architecture pcibios init code.
 * These are only available on SSB_EMBEDDED configurations. */
#ifdef CONFIG_SSB_EMBEDDED
int ssb_pcibios_plat_dev_init(struct pci_dev *dev);
int ssb_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
#endif /* CONFIG_SSB_EMBEDDED */

#endif /* LINUX_SSB_H_ */