blob: dd34b7a33965e5da69d87c5a4c71b039cfc591e7 [file] [log] [blame]
Olav Kongas4808a1c2005-04-09 22:57:39 +03001/*
2 * ISP116x register declarations and HCD data structures
3 *
4 * Copyright (C) 2005 Olav Kongas <ok@artecdesign.ee>
5 * Portions:
6 * Copyright (C) 2004 Lothar Wassmann
7 * Copyright (C) 2004 Psion Teklogix
8 * Copyright (C) 2004 David Brownell
9 */
10
11/* us of 1ms frame */
12#define MAX_LOAD_LIMIT 850
13
14/* Full speed: max # of bytes to transfer for a single urb
15 at a time must be < 1024 && must be multiple of 64.
Lucas De Marchi25985ed2011-03-30 22:57:33 -030016 832 allows transferring 4kiB within 5 frames. */
Olav Kongas4808a1c2005-04-09 22:57:39 +030017#define MAX_TRANSFER_SIZE_FULLSPEED 832
18
19/* Low speed: there is no reason to schedule in very big
20 chunks; often the requested long transfers are for
21 string descriptors containing short strings. */
22#define MAX_TRANSFER_SIZE_LOWSPEED 64
23
24/* Bytetime (us), a rough indication of how much time it
25 would take to transfer a byte of useful data over USB */
26#define BYTE_TIME_FULLSPEED 1
27#define BYTE_TIME_LOWSPEED 20
28
29/* Buffer sizes */
30#define ISP116x_BUF_SIZE 4096
31#define ISP116x_ITL_BUFSIZE 0
32#define ISP116x_ATL_BUFSIZE ((ISP116x_BUF_SIZE) - 2*(ISP116x_ITL_BUFSIZE))
33
34#define ISP116x_WRITE_OFFSET 0x80
35
36/*------------ ISP116x registers/bits ------------*/
37#define HCREVISION 0x00
38#define HCCONTROL 0x01
39#define HCCONTROL_HCFS (3 << 6) /* host controller
40 functional state */
41#define HCCONTROL_USB_RESET (0 << 6)
42#define HCCONTROL_USB_RESUME (1 << 6)
43#define HCCONTROL_USB_OPER (2 << 6)
44#define HCCONTROL_USB_SUSPEND (3 << 6)
45#define HCCONTROL_RWC (1 << 9) /* remote wakeup connected */
46#define HCCONTROL_RWE (1 << 10) /* remote wakeup enable */
47#define HCCMDSTAT 0x02
48#define HCCMDSTAT_HCR (1 << 0) /* host controller reset */
49#define HCCMDSTAT_SOC (3 << 16) /* scheduling overrun count */
50#define HCINTSTAT 0x03
51#define HCINT_SO (1 << 0) /* scheduling overrun */
52#define HCINT_WDH (1 << 1) /* writeback of done_head */
53#define HCINT_SF (1 << 2) /* start frame */
54#define HCINT_RD (1 << 3) /* resume detect */
55#define HCINT_UE (1 << 4) /* unrecoverable error */
56#define HCINT_FNO (1 << 5) /* frame number overflow */
57#define HCINT_RHSC (1 << 6) /* root hub status change */
58#define HCINT_OC (1 << 30) /* ownership change */
59#define HCINT_MIE (1 << 31) /* master interrupt enable */
60#define HCINTENB 0x04
61#define HCINTDIS 0x05
62#define HCFMINTVL 0x0d
63#define HCFMREM 0x0e
64#define HCFMNUM 0x0f
65#define HCLSTHRESH 0x11
66#define HCRHDESCA 0x12
67#define RH_A_NDP (0x3 << 0) /* # downstream ports */
68#define RH_A_PSM (1 << 8) /* power switching mode */
69#define RH_A_NPS (1 << 9) /* no power switching */
70#define RH_A_DT (1 << 10) /* device type (mbz) */
71#define RH_A_OCPM (1 << 11) /* overcurrent protection
72 mode */
73#define RH_A_NOCP (1 << 12) /* no overcurrent protection */
74#define RH_A_POTPGT (0xff << 24) /* power on -> power good
75 time */
76#define HCRHDESCB 0x13
77#define RH_B_DR (0xffff << 0) /* device removable flags */
78#define RH_B_PPCM (0xffff << 16) /* port power control mask */
79#define HCRHSTATUS 0x14
80#define RH_HS_LPS (1 << 0) /* local power status */
81#define RH_HS_OCI (1 << 1) /* over current indicator */
82#define RH_HS_DRWE (1 << 15) /* device remote wakeup
83 enable */
84#define RH_HS_LPSC (1 << 16) /* local power status change */
85#define RH_HS_OCIC (1 << 17) /* over current indicator
86 change */
87#define RH_HS_CRWE (1 << 31) /* clear remote wakeup
88 enable */
89#define HCRHPORT1 0x15
90#define RH_PS_CCS (1 << 0) /* current connect status */
91#define RH_PS_PES (1 << 1) /* port enable status */
92#define RH_PS_PSS (1 << 2) /* port suspend status */
93#define RH_PS_POCI (1 << 3) /* port over current
94 indicator */
95#define RH_PS_PRS (1 << 4) /* port reset status */
96#define RH_PS_PPS (1 << 8) /* port power status */
97#define RH_PS_LSDA (1 << 9) /* low speed device attached */
98#define RH_PS_CSC (1 << 16) /* connect status change */
99#define RH_PS_PESC (1 << 17) /* port enable status change */
100#define RH_PS_PSSC (1 << 18) /* port suspend status
101 change */
102#define RH_PS_OCIC (1 << 19) /* over current indicator
103 change */
104#define RH_PS_PRSC (1 << 20) /* port reset status change */
105#define HCRHPORT_CLRMASK (0x1f << 16)
106#define HCRHPORT2 0x16
107#define HCHWCFG 0x20
108#define HCHWCFG_15KRSEL (1 << 12)
109#define HCHWCFG_CLKNOTSTOP (1 << 11)
110#define HCHWCFG_ANALOG_OC (1 << 10)
111#define HCHWCFG_DACK_MODE (1 << 8)
112#define HCHWCFG_EOT_POL (1 << 7)
113#define HCHWCFG_DACK_POL (1 << 6)
114#define HCHWCFG_DREQ_POL (1 << 5)
115#define HCHWCFG_DBWIDTH_MASK (0x03 << 3)
116#define HCHWCFG_DBWIDTH(n) (((n) << 3) & HCHWCFG_DBWIDTH_MASK)
117#define HCHWCFG_INT_POL (1 << 2)
118#define HCHWCFG_INT_TRIGGER (1 << 1)
119#define HCHWCFG_INT_ENABLE (1 << 0)
120#define HCDMACFG 0x21
121#define HCDMACFG_BURST_LEN_MASK (0x03 << 5)
122#define HCDMACFG_BURST_LEN(n) (((n) << 5) & HCDMACFG_BURST_LEN_MASK)
123#define HCDMACFG_BURST_LEN_1 HCDMACFG_BURST_LEN(0)
124#define HCDMACFG_BURST_LEN_4 HCDMACFG_BURST_LEN(1)
125#define HCDMACFG_BURST_LEN_8 HCDMACFG_BURST_LEN(2)
126#define HCDMACFG_DMA_ENABLE (1 << 4)
127#define HCDMACFG_BUF_TYPE_MASK (0x07 << 1)
128#define HCDMACFG_CTR_SEL (1 << 2)
129#define HCDMACFG_ITLATL_SEL (1 << 1)
130#define HCDMACFG_DMA_RW_SELECT (1 << 0)
131#define HCXFERCTR 0x22
132#define HCuPINT 0x24
133#define HCuPINT_SOF (1 << 0)
134#define HCuPINT_ATL (1 << 1)
135#define HCuPINT_AIIEOT (1 << 2)
136#define HCuPINT_OPR (1 << 4)
137#define HCuPINT_SUSP (1 << 5)
138#define HCuPINT_CLKRDY (1 << 6)
139#define HCuPINTENB 0x25
140#define HCCHIPID 0x27
141#define HCCHIPID_MASK 0xff00
142#define HCCHIPID_MAGIC 0x6100
143#define HCSCRATCH 0x28
144#define HCSWRES 0x29
145#define HCSWRES_MAGIC 0x00f6
146#define HCITLBUFLEN 0x2a
147#define HCATLBUFLEN 0x2b
148#define HCBUFSTAT 0x2c
149#define HCBUFSTAT_ITL0_FULL (1 << 0)
150#define HCBUFSTAT_ITL1_FULL (1 << 1)
151#define HCBUFSTAT_ATL_FULL (1 << 2)
152#define HCBUFSTAT_ITL0_DONE (1 << 3)
153#define HCBUFSTAT_ITL1_DONE (1 << 4)
154#define HCBUFSTAT_ATL_DONE (1 << 5)
155#define HCRDITL0LEN 0x2d
156#define HCRDITL1LEN 0x2e
157#define HCITLPORT 0x40
158#define HCATLPORT 0x41
159
160/* Philips transfer descriptor */
161struct ptd {
162 u16 count;
163#define PTD_COUNT_MSK (0x3ff << 0)
164#define PTD_TOGGLE_MSK (1 << 10)
165#define PTD_ACTIVE_MSK (1 << 11)
166#define PTD_CC_MSK (0xf << 12)
167 u16 mps;
168#define PTD_MPS_MSK (0x3ff << 0)
169#define PTD_SPD_MSK (1 << 10)
170#define PTD_LAST_MSK (1 << 11)
171#define PTD_EP_MSK (0xf << 12)
172 u16 len;
173#define PTD_LEN_MSK (0x3ff << 0)
174#define PTD_DIR_MSK (3 << 10)
175#define PTD_DIR_SETUP (0)
176#define PTD_DIR_OUT (1)
177#define PTD_DIR_IN (2)
178#define PTD_B5_5_MSK (1 << 13)
179 u16 faddr;
180#define PTD_FA_MSK (0x7f << 0)
181#define PTD_FMT_MSK (1 << 7)
182} __attribute__ ((packed, aligned(2)));
183
184/* PTD accessor macros. */
185#define PTD_GET_COUNT(p) (((p)->count & PTD_COUNT_MSK) >> 0)
186#define PTD_COUNT(v) (((v) << 0) & PTD_COUNT_MSK)
187#define PTD_GET_TOGGLE(p) (((p)->count & PTD_TOGGLE_MSK) >> 10)
188#define PTD_TOGGLE(v) (((v) << 10) & PTD_TOGGLE_MSK)
189#define PTD_GET_ACTIVE(p) (((p)->count & PTD_ACTIVE_MSK) >> 11)
190#define PTD_ACTIVE(v) (((v) << 11) & PTD_ACTIVE_MSK)
191#define PTD_GET_CC(p) (((p)->count & PTD_CC_MSK) >> 12)
192#define PTD_CC(v) (((v) << 12) & PTD_CC_MSK)
193#define PTD_GET_MPS(p) (((p)->mps & PTD_MPS_MSK) >> 0)
194#define PTD_MPS(v) (((v) << 0) & PTD_MPS_MSK)
195#define PTD_GET_SPD(p) (((p)->mps & PTD_SPD_MSK) >> 10)
196#define PTD_SPD(v) (((v) << 10) & PTD_SPD_MSK)
197#define PTD_GET_LAST(p) (((p)->mps & PTD_LAST_MSK) >> 11)
198#define PTD_LAST(v) (((v) << 11) & PTD_LAST_MSK)
199#define PTD_GET_EP(p) (((p)->mps & PTD_EP_MSK) >> 12)
200#define PTD_EP(v) (((v) << 12) & PTD_EP_MSK)
201#define PTD_GET_LEN(p) (((p)->len & PTD_LEN_MSK) >> 0)
202#define PTD_LEN(v) (((v) << 0) & PTD_LEN_MSK)
203#define PTD_GET_DIR(p) (((p)->len & PTD_DIR_MSK) >> 10)
204#define PTD_DIR(v) (((v) << 10) & PTD_DIR_MSK)
205#define PTD_GET_B5_5(p) (((p)->len & PTD_B5_5_MSK) >> 13)
206#define PTD_B5_5(v) (((v) << 13) & PTD_B5_5_MSK)
207#define PTD_GET_FA(p) (((p)->faddr & PTD_FA_MSK) >> 0)
208#define PTD_FA(v) (((v) << 0) & PTD_FA_MSK)
209#define PTD_GET_FMT(p) (((p)->faddr & PTD_FMT_MSK) >> 7)
210#define PTD_FMT(v) (((v) << 7) & PTD_FMT_MSK)
211
212/* Hardware transfer status codes -- CC from ptd->count */
213#define TD_CC_NOERROR 0x00
214#define TD_CC_CRC 0x01
215#define TD_CC_BITSTUFFING 0x02
216#define TD_CC_DATATOGGLEM 0x03
217#define TD_CC_STALL 0x04
218#define TD_DEVNOTRESP 0x05
219#define TD_PIDCHECKFAIL 0x06
220#define TD_UNEXPECTEDPID 0x07
221#define TD_DATAOVERRUN 0x08
222#define TD_DATAUNDERRUN 0x09
223 /* 0x0A, 0x0B reserved for hardware */
224#define TD_BUFFEROVERRUN 0x0C
225#define TD_BUFFERUNDERRUN 0x0D
226 /* 0x0E, 0x0F reserved for HCD */
227#define TD_NOTACCESSED 0x0F
228
229/* map PTD status codes (CC) to errno values */
230static const int cc_to_error[16] = {
231 /* No Error */ 0,
232 /* CRC Error */ -EILSEQ,
233 /* Bit Stuff */ -EPROTO,
234 /* Data Togg */ -EILSEQ,
235 /* Stall */ -EPIPE,
Pete Zaitcev38e2bfc2006-09-18 22:49:02 -0700236 /* DevNotResp */ -ETIME,
Olav Kongas4808a1c2005-04-09 22:57:39 +0300237 /* PIDCheck */ -EPROTO,
238 /* UnExpPID */ -EPROTO,
239 /* DataOver */ -EOVERFLOW,
240 /* DataUnder */ -EREMOTEIO,
241 /* (for hw) */ -EIO,
242 /* (for hw) */ -EIO,
243 /* BufferOver */ -ECOMM,
244 /* BuffUnder */ -ENOSR,
245 /* (for HCD) */ -EALREADY,
246 /* (for HCD) */ -EALREADY
247};
248
249/*--------------------------------------------------------------*/
250
251#define LOG2_PERIODIC_SIZE 5 /* arbitrary; this matches OHCI */
252#define PERIODIC_SIZE (1 << LOG2_PERIODIC_SIZE)
253
254struct isp116x {
255 spinlock_t lock;
Olav Kongas4808a1c2005-04-09 22:57:39 +0300256
257 void __iomem *addr_reg;
258 void __iomem *data_reg;
259
260 struct isp116x_platform_data *board;
261
Olav Kongas959eea22005-11-03 17:38:14 +0200262 struct dentry *dentry;
Olav Kongas4808a1c2005-04-09 22:57:39 +0300263 unsigned long stat1, stat2, stat4, stat8, stat16;
264
265 /* HC registers */
266 u32 intenb; /* "OHCI" interrupts */
267 u16 irqenb; /* uP interrupts */
268
269 /* Root hub registers */
270 u32 rhdesca;
271 u32 rhdescb;
272 u32 rhstatus;
Olav Kongas4808a1c2005-04-09 22:57:39 +0300273
274 /* async schedule: control, bulk */
275 struct list_head async;
276
277 /* periodic schedule: int */
278 u16 load[PERIODIC_SIZE];
279 struct isp116x_ep *periodic[PERIODIC_SIZE];
280 unsigned periodic_count;
281 u16 fmindex;
282
283 /* Schedule for the current frame */
284 struct isp116x_ep *atl_active;
285 int atl_buflen;
286 int atl_bufshrt;
287 int atl_last_dir;
288 atomic_t atl_finishing;
289};
290
291static inline struct isp116x *hcd_to_isp116x(struct usb_hcd *hcd)
292{
293 return (struct isp116x *)(hcd->hcd_priv);
294}
295
296static inline struct usb_hcd *isp116x_to_hcd(struct isp116x *isp116x)
297{
298 return container_of((void *)isp116x, struct usb_hcd, hcd_priv);
299}
300
301struct isp116x_ep {
302 struct usb_host_endpoint *hep;
303 struct usb_device *udev;
304 struct ptd ptd;
305
306 u8 maxpacket;
307 u8 epnum;
308 u8 nextpid;
309 u16 error_count;
310 u16 length; /* of current packet */
311 unsigned char *data; /* to databuf */
312 /* queue of active EP's (the ones scheduled for the
313 current frame) */
314 struct isp116x_ep *active;
315
316 /* periodic schedule */
317 u16 period;
318 u16 branch;
319 u16 load;
320 struct isp116x_ep *next;
321
322 /* async schedule */
323 struct list_head schedule;
324};
325
326/*-------------------------------------------------------------------------*/
327
Greg Kroah-Hartman1d896ce2013-06-28 11:33:02 -0700328#define DBG(stuff...) pr_debug("116x: " stuff)
Olav Kongas4808a1c2005-04-09 22:57:39 +0300329
330#ifdef VERBOSE
331# define VDBG DBG
332#else
333# define VDBG(stuff...) do{}while(0)
334#endif
335
336#define ERR(stuff...) printk(KERN_ERR "116x: " stuff)
Arjan van de Venb6c63932008-07-25 01:45:52 -0700337#define WARNING(stuff...) printk(KERN_WARNING "116x: " stuff)
Olav Kongas4808a1c2005-04-09 22:57:39 +0300338#define INFO(stuff...) printk(KERN_INFO "116x: " stuff)
339
340/* ------------------------------------------------- */
341
342#if defined(USE_PLATFORM_DELAY)
343#if defined(USE_NDELAY)
344#error USE_PLATFORM_DELAY and USE_NDELAY simultaneously defined.
345#endif
346#define isp116x_delay(h,d) (h)->board->delay( \
347 isp116x_to_hcd(h)->self.controller,d)
348#define isp116x_check_platform_delay(h) ((h)->board->delay == NULL)
349#elif defined(USE_NDELAY)
350#define isp116x_delay(h,d) ndelay(d)
351#define isp116x_check_platform_delay(h) 0
352#else
353#define isp116x_delay(h,d) do{}while(0)
354#define isp116x_check_platform_delay(h) 0
355#endif
356
Olav Kongas4808a1c2005-04-09 22:57:39 +0300357static inline void isp116x_write_addr(struct isp116x *isp116x, unsigned reg)
358{
Olav Kongas4808a1c2005-04-09 22:57:39 +0300359 writew(reg & 0xff, isp116x->addr_reg);
360 isp116x_delay(isp116x, 300);
361}
362
363static inline void isp116x_write_data16(struct isp116x *isp116x, u16 val)
364{
365 writew(val, isp116x->data_reg);
366 isp116x_delay(isp116x, 150);
367}
368
369static inline void isp116x_raw_write_data16(struct isp116x *isp116x, u16 val)
370{
371 __raw_writew(val, isp116x->data_reg);
372 isp116x_delay(isp116x, 150);
373}
374
375static inline u16 isp116x_read_data16(struct isp116x *isp116x)
376{
377 u16 val;
378
379 val = readw(isp116x->data_reg);
380 isp116x_delay(isp116x, 150);
381 return val;
382}
383
384static inline u16 isp116x_raw_read_data16(struct isp116x *isp116x)
385{
386 u16 val;
387
388 val = __raw_readw(isp116x->data_reg);
389 isp116x_delay(isp116x, 150);
390 return val;
391}
392
393static inline void isp116x_write_data32(struct isp116x *isp116x, u32 val)
394{
395 writew(val & 0xffff, isp116x->data_reg);
396 isp116x_delay(isp116x, 150);
397 writew(val >> 16, isp116x->data_reg);
398 isp116x_delay(isp116x, 150);
399}
400
401static inline u32 isp116x_read_data32(struct isp116x *isp116x)
402{
403 u32 val;
404
405 val = (u32) readw(isp116x->data_reg);
406 isp116x_delay(isp116x, 150);
407 val |= ((u32) readw(isp116x->data_reg)) << 16;
408 isp116x_delay(isp116x, 150);
409 return val;
410}
411
412/* Let's keep register access functions out of line. Hint:
413 we wait at least 150 ns at every access.
414*/
415static u16 isp116x_read_reg16(struct isp116x *isp116x, unsigned reg)
416{
417 isp116x_write_addr(isp116x, reg);
418 return isp116x_read_data16(isp116x);
419}
420
421static u32 isp116x_read_reg32(struct isp116x *isp116x, unsigned reg)
422{
423 isp116x_write_addr(isp116x, reg);
424 return isp116x_read_data32(isp116x);
425}
426
427static void isp116x_write_reg16(struct isp116x *isp116x, unsigned reg,
428 unsigned val)
429{
430 isp116x_write_addr(isp116x, reg | ISP116x_WRITE_OFFSET);
431 isp116x_write_data16(isp116x, (u16) (val & 0xffff));
432}
433
434static void isp116x_write_reg32(struct isp116x *isp116x, unsigned reg,
435 unsigned val)
436{
437 isp116x_write_addr(isp116x, reg | ISP116x_WRITE_OFFSET);
438 isp116x_write_data32(isp116x, (u32) val);
439}
440
Olav Kongas959eea22005-11-03 17:38:14 +0200441#define isp116x_show_reg_log(d,r,s) { \
Olav Kongas4808a1c2005-04-09 22:57:39 +0300442 if ((r) < 0x20) { \
443 DBG("%-12s[%02x]: %08x\n", #r, \
444 r, isp116x_read_reg32(d, r)); \
445 } else { \
446 DBG("%-12s[%02x]: %04x\n", #r, \
447 r, isp116x_read_reg16(d, r)); \
448 } \
449}
Olav Kongas959eea22005-11-03 17:38:14 +0200450#define isp116x_show_reg_seq(d,r,s) { \
451 if ((r) < 0x20) { \
452 seq_printf(s, "%-12s[%02x]: %08x\n", #r, \
453 r, isp116x_read_reg32(d, r)); \
454 } else { \
455 seq_printf(s, "%-12s[%02x]: %04x\n", #r, \
456 r, isp116x_read_reg16(d, r)); \
457 } \
458}
Olav Kongas4808a1c2005-04-09 22:57:39 +0300459
Olav Kongas959eea22005-11-03 17:38:14 +0200460#define isp116x_show_regs(d,type,s) { \
461 isp116x_show_reg_##type(d, HCREVISION, s); \
462 isp116x_show_reg_##type(d, HCCONTROL, s); \
463 isp116x_show_reg_##type(d, HCCMDSTAT, s); \
464 isp116x_show_reg_##type(d, HCINTSTAT, s); \
465 isp116x_show_reg_##type(d, HCINTENB, s); \
466 isp116x_show_reg_##type(d, HCFMINTVL, s); \
467 isp116x_show_reg_##type(d, HCFMREM, s); \
468 isp116x_show_reg_##type(d, HCFMNUM, s); \
469 isp116x_show_reg_##type(d, HCLSTHRESH, s); \
470 isp116x_show_reg_##type(d, HCRHDESCA, s); \
471 isp116x_show_reg_##type(d, HCRHDESCB, s); \
472 isp116x_show_reg_##type(d, HCRHSTATUS, s); \
473 isp116x_show_reg_##type(d, HCRHPORT1, s); \
474 isp116x_show_reg_##type(d, HCRHPORT2, s); \
475 isp116x_show_reg_##type(d, HCHWCFG, s); \
476 isp116x_show_reg_##type(d, HCDMACFG, s); \
477 isp116x_show_reg_##type(d, HCXFERCTR, s); \
478 isp116x_show_reg_##type(d, HCuPINT, s); \
479 isp116x_show_reg_##type(d, HCuPINTENB, s); \
480 isp116x_show_reg_##type(d, HCCHIPID, s); \
481 isp116x_show_reg_##type(d, HCSCRATCH, s); \
482 isp116x_show_reg_##type(d, HCITLBUFLEN, s); \
483 isp116x_show_reg_##type(d, HCATLBUFLEN, s); \
484 isp116x_show_reg_##type(d, HCBUFSTAT, s); \
485 isp116x_show_reg_##type(d, HCRDITL0LEN, s); \
486 isp116x_show_reg_##type(d, HCRDITL1LEN, s); \
487}
488
489/*
490 Dump registers for debugfs.
491*/
492static inline void isp116x_show_regs_seq(struct isp116x *isp116x,
493 struct seq_file *s)
Olav Kongas4808a1c2005-04-09 22:57:39 +0300494{
Olav Kongas959eea22005-11-03 17:38:14 +0200495 isp116x_show_regs(isp116x, seq, s);
496}
497
498/*
499 Dump registers to syslog.
500*/
501static inline void isp116x_show_regs_log(struct isp116x *isp116x)
502{
503 isp116x_show_regs(isp116x, log, NULL);
Olav Kongas4808a1c2005-04-09 22:57:39 +0300504}
505
506#if defined(URB_TRACE)
507
508#define PIPETYPE(pipe) ({ char *__s; \
509 if (usb_pipecontrol(pipe)) __s = "ctrl"; \
510 else if (usb_pipeint(pipe)) __s = "int"; \
511 else if (usb_pipebulk(pipe)) __s = "bulk"; \
512 else __s = "iso"; \
513 __s;})
514#define PIPEDIR(pipe) ({ usb_pipein(pipe) ? "in" : "out"; })
515#define URB_NOTSHORT(urb) ({ (urb)->transfer_flags & URB_SHORT_NOT_OK ? \
516 "short_not_ok" : ""; })
517
518/* print debug info about the URB */
519static void urb_dbg(struct urb *urb, char *msg)
520{
521 unsigned int pipe;
522
523 if (!urb) {
524 DBG("%s: zero urb\n", msg);
525 return;
526 }
527 pipe = urb->pipe;
528 DBG("%s: FA %d ep%d%s %s: len %d/%d %s\n", msg,
529 usb_pipedevice(pipe), usb_pipeendpoint(pipe),
530 PIPEDIR(pipe), PIPETYPE(pipe),
531 urb->transfer_buffer_length, urb->actual_length, URB_NOTSHORT(urb));
532}
533
534#else
535
536#define urb_dbg(urb,msg) do{}while(0)
537
538#endif /* ! defined(URB_TRACE) */
539
540#if defined(PTD_TRACE)
541
542#define PTD_DIR_STR(ptd) ({char __c; \
543 switch(PTD_GET_DIR(ptd)){ \
544 case 0: __c = 's'; break; \
545 case 1: __c = 'o'; break; \
546 default: __c = 'i'; break; \
547 }; __c;})
548
549/*
550 Dump PTD info. The code documents the format
551 perfectly, right :)
552*/
553static inline void dump_ptd(struct ptd *ptd)
554{
Frank Seidel6f8aa652009-02-05 16:16:24 +0100555 printk(KERN_WARNING "td: %x %d%c%d %d,%d,%d %x %x%x%x\n",
Olav Kongas4808a1c2005-04-09 22:57:39 +0300556 PTD_GET_CC(ptd), PTD_GET_FA(ptd),
557 PTD_DIR_STR(ptd), PTD_GET_EP(ptd),
558 PTD_GET_COUNT(ptd), PTD_GET_LEN(ptd), PTD_GET_MPS(ptd),
559 PTD_GET_TOGGLE(ptd), PTD_GET_ACTIVE(ptd),
560 PTD_GET_SPD(ptd), PTD_GET_LAST(ptd));
561}
562
563static inline void dump_ptd_out_data(struct ptd *ptd, u8 * buf)
564{
565 int k;
566
567 if (PTD_GET_DIR(ptd) != PTD_DIR_IN && PTD_GET_LEN(ptd)) {
Frank Seidel6f8aa652009-02-05 16:16:24 +0100568 printk(KERN_WARNING "-> ");
Olav Kongas4808a1c2005-04-09 22:57:39 +0300569 for (k = 0; k < PTD_GET_LEN(ptd); ++k)
570 printk("%02x ", ((u8 *) buf)[k]);
571 printk("\n");
572 }
573}
574
575static inline void dump_ptd_in_data(struct ptd *ptd, u8 * buf)
576{
577 int k;
578
579 if (PTD_GET_DIR(ptd) == PTD_DIR_IN && PTD_GET_COUNT(ptd)) {
Frank Seidel6f8aa652009-02-05 16:16:24 +0100580 printk(KERN_WARNING "<- ");
Olav Kongas4808a1c2005-04-09 22:57:39 +0300581 for (k = 0; k < PTD_GET_COUNT(ptd); ++k)
582 printk("%02x ", ((u8 *) buf)[k]);
583 printk("\n");
584 }
585 if (PTD_GET_LAST(ptd))
Frank Seidel6f8aa652009-02-05 16:16:24 +0100586 printk(KERN_WARNING "-\n");
Olav Kongas4808a1c2005-04-09 22:57:39 +0300587}
588
589#else
590
591#define dump_ptd(ptd) do{}while(0)
592#define dump_ptd_in_data(ptd,buf) do{}while(0)
593#define dump_ptd_out_data(ptd,buf) do{}while(0)
594
595#endif /* ! defined(PTD_TRACE) */