drivers/usb/host/isp116x.h - kernel/msm-4.19 - Gitiles

 /*
  * ISP116x register declarations and HCD data structures
  *
  * Copyright (C) 2005 Olav Kongas <ok@artecdesign.ee>
  * Portions:
  * Copyright (C) 2004 Lothar Wassmann
  * Copyright (C) 2004 Psion Teklogix
  * Copyright (C) 2004 David Brownell
  */

 /* us of 1ms frame */
 #define  MAX_LOAD_LIMIT		850

 /* Full speed: max # of bytes to transfer for a single urb
    at a time must be < 1024 && must be multiple of 64.
    832 allows transfering 4kiB within 5 frames. */
 #define MAX_TRANSFER_SIZE_FULLSPEED	832

 /* Low speed: there is no reason to schedule in very big
    chunks; often the requested long transfers are for
    string descriptors containing short strings. */
 #define MAX_TRANSFER_SIZE_LOWSPEED	64

 /* Bytetime (us), a rough indication of how much time it
    would take to transfer a byte of useful data over USB */
 #define BYTE_TIME_FULLSPEED	1
 #define BYTE_TIME_LOWSPEED	20

 /* Buffer sizes */
 #define ISP116x_BUF_SIZE	4096
 #define ISP116x_ITL_BUFSIZE	0
 #define ISP116x_ATL_BUFSIZE	((ISP116x_BUF_SIZE) - 2*(ISP116x_ITL_BUFSIZE))

 #define ISP116x_WRITE_OFFSET	0x80

 /*------------ ISP116x registers/bits ------------*/
 #define	HCREVISION	0x00
 #define	HCCONTROL	0x01
 #define		HCCONTROL_HCFS	(3 << 6)	/* host controller
 						   functional state */
 #define		HCCONTROL_USB_RESET	(0 << 6)
 #define		HCCONTROL_USB_RESUME	(1 << 6)
 #define		HCCONTROL_USB_OPER	(2 << 6)
 #define		HCCONTROL_USB_SUSPEND	(3 << 6)
 #define		HCCONTROL_RWC	(1 << 9)	/* remote wakeup connected */
 #define		HCCONTROL_RWE	(1 << 10)	/* remote wakeup enable */
 #define	HCCMDSTAT	0x02
 #define		HCCMDSTAT_HCR	(1 << 0)	/* host controller reset */
 #define		HCCMDSTAT_SOC	(3 << 16)	/* scheduling overrun count */
 #define	HCINTSTAT	0x03
 #define		HCINT_SO	(1 << 0)	/* scheduling overrun */
 #define		HCINT_WDH	(1 << 1)	/* writeback of done_head */
 #define		HCINT_SF	(1 << 2)	/* start frame */
 #define		HCINT_RD	(1 << 3)	/* resume detect */
 #define		HCINT_UE	(1 << 4)	/* unrecoverable error */
 #define		HCINT_FNO	(1 << 5)	/* frame number overflow */
 #define		HCINT_RHSC	(1 << 6)	/* root hub status change */
 #define		HCINT_OC	(1 << 30)	/* ownership change */
 #define		HCINT_MIE	(1 << 31)	/* master interrupt enable */
 #define	HCINTENB	0x04
 #define	HCINTDIS	0x05
 #define	HCFMINTVL	0x0d
 #define	HCFMREM		0x0e
 #define	HCFMNUM		0x0f
 #define	HCLSTHRESH	0x11
 #define	HCRHDESCA	0x12
 #define		RH_A_NDP	(0x3 << 0)	/* # downstream ports */
 #define		RH_A_PSM	(1 << 8)	/* power switching mode */
 #define		RH_A_NPS	(1 << 9)	/* no power switching */
 #define		RH_A_DT		(1 << 10)	/* device type (mbz) */
 #define		RH_A_OCPM	(1 << 11)	/* overcurrent protection
 						   mode */
 #define		RH_A_NOCP	(1 << 12)	/* no overcurrent protection */
 #define		RH_A_POTPGT	(0xff << 24)	/* power on -> power good
 						   time */
 #define	HCRHDESCB	0x13
 #define		RH_B_DR		(0xffff << 0)	/* device removable flags */
 #define		RH_B_PPCM	(0xffff << 16)	/* port power control mask */
 #define	HCRHSTATUS	0x14
 #define		RH_HS_LPS	(1 << 0)	/* local power status */
 #define		RH_HS_OCI	(1 << 1)	/* over current indicator */
 #define		RH_HS_DRWE	(1 << 15)	/* device remote wakeup
 						   enable */
 #define		RH_HS_LPSC	(1 << 16)	/* local power status change */
 #define		RH_HS_OCIC	(1 << 17)	/* over current indicator
 						   change */
 #define		RH_HS_CRWE	(1 << 31)	/* clear remote wakeup
 						   enable */
 #define	HCRHPORT1	0x15
 #define		RH_PS_CCS	(1 << 0)	/* current connect status */
 #define		RH_PS_PES	(1 << 1)	/* port enable status */
 #define		RH_PS_PSS	(1 << 2)	/* port suspend status */
 #define		RH_PS_POCI	(1 << 3)	/* port over current
 						   indicator */
 #define		RH_PS_PRS	(1 << 4)	/* port reset status */
 #define		RH_PS_PPS	(1 << 8)	/* port power status */
 #define		RH_PS_LSDA	(1 << 9)	/* low speed device attached */
 #define		RH_PS_CSC	(1 << 16)	/* connect status change */
 #define		RH_PS_PESC	(1 << 17)	/* port enable status change */
 #define		RH_PS_PSSC	(1 << 18)	/* port suspend status
 						   change */
 #define		RH_PS_OCIC	(1 << 19)	/* over current indicator
 						   change */
 #define		RH_PS_PRSC	(1 << 20)	/* port reset status change */
 #define		HCRHPORT_CLRMASK	(0x1f << 16)
 #define	HCRHPORT2	0x16
 #define	HCHWCFG		0x20
 #define		HCHWCFG_15KRSEL		(1 << 12)
 #define		HCHWCFG_CLKNOTSTOP	(1 << 11)
 #define		HCHWCFG_ANALOG_OC	(1 << 10)
 #define		HCHWCFG_DACK_MODE	(1 << 8)
 #define		HCHWCFG_EOT_POL		(1 << 7)
 #define		HCHWCFG_DACK_POL	(1 << 6)
 #define		HCHWCFG_DREQ_POL	(1 << 5)
 #define		HCHWCFG_DBWIDTH_MASK	(0x03 << 3)
 #define		HCHWCFG_DBWIDTH(n)	(((n) << 3) & HCHWCFG_DBWIDTH_MASK)
 #define		HCHWCFG_INT_POL		(1 << 2)
 #define		HCHWCFG_INT_TRIGGER	(1 << 1)
 #define		HCHWCFG_INT_ENABLE	(1 << 0)
 #define	HCDMACFG	0x21
 #define		HCDMACFG_BURST_LEN_MASK	(0x03 << 5)
 #define		HCDMACFG_BURST_LEN(n)	(((n) << 5) & HCDMACFG_BURST_LEN_MASK)
 #define		HCDMACFG_BURST_LEN_1	HCDMACFG_BURST_LEN(0)
 #define		HCDMACFG_BURST_LEN_4	HCDMACFG_BURST_LEN(1)
 #define		HCDMACFG_BURST_LEN_8	HCDMACFG_BURST_LEN(2)
 #define		HCDMACFG_DMA_ENABLE	(1 << 4)
 #define		HCDMACFG_BUF_TYPE_MASK	(0x07 << 1)
 #define		HCDMACFG_CTR_SEL	(1 << 2)
 #define		HCDMACFG_ITLATL_SEL	(1 << 1)
 #define		HCDMACFG_DMA_RW_SELECT	(1 << 0)
 #define	HCXFERCTR	0x22
 #define	HCuPINT		0x24
 #define		HCuPINT_SOF		(1 << 0)
 #define		HCuPINT_ATL		(1 << 1)
 #define		HCuPINT_AIIEOT		(1 << 2)
 #define		HCuPINT_OPR		(1 << 4)
 #define		HCuPINT_SUSP		(1 << 5)
 #define		HCuPINT_CLKRDY		(1 << 6)
 #define	HCuPINTENB	0x25
 #define	HCCHIPID	0x27
 #define		HCCHIPID_MASK		0xff00
 #define		HCCHIPID_MAGIC		0x6100
 #define	HCSCRATCH	0x28
 #define	HCSWRES		0x29
 #define		HCSWRES_MAGIC		0x00f6
 #define	HCITLBUFLEN	0x2a
 #define	HCATLBUFLEN	0x2b
 #define	HCBUFSTAT	0x2c
 #define		HCBUFSTAT_ITL0_FULL	(1 << 0)
 #define		HCBUFSTAT_ITL1_FULL	(1 << 1)
 #define		HCBUFSTAT_ATL_FULL	(1 << 2)
 #define		HCBUFSTAT_ITL0_DONE	(1 << 3)
 #define		HCBUFSTAT_ITL1_DONE	(1 << 4)
 #define		HCBUFSTAT_ATL_DONE	(1 << 5)
 #define	HCRDITL0LEN	0x2d
 #define	HCRDITL1LEN	0x2e
 #define	HCITLPORT	0x40
 #define	HCATLPORT	0x41

 /* Philips transfer descriptor */
 struct ptd {
 	u16 count;
 #define	PTD_COUNT_MSK	(0x3ff << 0)
 #define	PTD_TOGGLE_MSK	(1 << 10)
 #define	PTD_ACTIVE_MSK	(1 << 11)
 #define	PTD_CC_MSK	(0xf << 12)
 	u16 mps;
 #define	PTD_MPS_MSK	(0x3ff << 0)
 #define	PTD_SPD_MSK	(1 << 10)
 #define	PTD_LAST_MSK	(1 << 11)
 #define	PTD_EP_MSK	(0xf << 12)
 	u16 len;
 #define	PTD_LEN_MSK	(0x3ff << 0)
 #define	PTD_DIR_MSK	(3 << 10)
 #define	PTD_DIR_SETUP	(0)
 #define	PTD_DIR_OUT	(1)
 #define	PTD_DIR_IN	(2)
 #define	PTD_B5_5_MSK	(1 << 13)
 	u16 faddr;
 #define	PTD_FA_MSK	(0x7f << 0)
 #define	PTD_FMT_MSK	(1 << 7)
 } __attribute__ ((packed, aligned(2)));

 /* PTD accessor macros. */
 #define PTD_GET_COUNT(p)	(((p)->count & PTD_COUNT_MSK) >> 0)
 #define PTD_COUNT(v)		(((v) << 0) & PTD_COUNT_MSK)
 #define PTD_GET_TOGGLE(p)	(((p)->count & PTD_TOGGLE_MSK) >> 10)
 #define PTD_TOGGLE(v)		(((v) << 10) & PTD_TOGGLE_MSK)
 #define PTD_GET_ACTIVE(p)	(((p)->count & PTD_ACTIVE_MSK) >> 11)
 #define PTD_ACTIVE(v)		(((v) << 11) & PTD_ACTIVE_MSK)
 #define PTD_GET_CC(p)		(((p)->count & PTD_CC_MSK) >> 12)
 #define PTD_CC(v)		(((v) << 12) & PTD_CC_MSK)
 #define PTD_GET_MPS(p)		(((p)->mps & PTD_MPS_MSK) >> 0)
 #define PTD_MPS(v)		(((v) << 0) & PTD_MPS_MSK)
 #define PTD_GET_SPD(p)		(((p)->mps & PTD_SPD_MSK) >> 10)
 #define PTD_SPD(v)		(((v) << 10) & PTD_SPD_MSK)
 #define PTD_GET_LAST(p)		(((p)->mps & PTD_LAST_MSK) >> 11)
 #define PTD_LAST(v)		(((v) << 11) & PTD_LAST_MSK)
 #define PTD_GET_EP(p)		(((p)->mps & PTD_EP_MSK) >> 12)
 #define PTD_EP(v)		(((v) << 12) & PTD_EP_MSK)
 #define PTD_GET_LEN(p)		(((p)->len & PTD_LEN_MSK) >> 0)
 #define PTD_LEN(v)		(((v) << 0) & PTD_LEN_MSK)
 #define PTD_GET_DIR(p)		(((p)->len & PTD_DIR_MSK) >> 10)
 #define PTD_DIR(v)		(((v) << 10) & PTD_DIR_MSK)
 #define PTD_GET_B5_5(p)		(((p)->len & PTD_B5_5_MSK) >> 13)
 #define PTD_B5_5(v)		(((v) << 13) & PTD_B5_5_MSK)
 #define PTD_GET_FA(p)		(((p)->faddr & PTD_FA_MSK) >> 0)
 #define PTD_FA(v)		(((v) << 0) & PTD_FA_MSK)
 #define PTD_GET_FMT(p)		(((p)->faddr & PTD_FMT_MSK) >> 7)
 #define PTD_FMT(v)		(((v) << 7) & PTD_FMT_MSK)

 /*  Hardware transfer status codes -- CC from ptd->count */
 #define TD_CC_NOERROR      0x00
 #define TD_CC_CRC          0x01
 #define TD_CC_BITSTUFFING  0x02
 #define TD_CC_DATATOGGLEM  0x03
 #define TD_CC_STALL        0x04
 #define TD_DEVNOTRESP      0x05
 #define TD_PIDCHECKFAIL    0x06
 #define TD_UNEXPECTEDPID   0x07
 #define TD_DATAOVERRUN     0x08
 #define TD_DATAUNDERRUN    0x09
     /* 0x0A, 0x0B reserved for hardware */
 #define TD_BUFFEROVERRUN   0x0C
 #define TD_BUFFERUNDERRUN  0x0D
     /* 0x0E, 0x0F reserved for HCD */
 #define TD_NOTACCESSED     0x0F

 /* map PTD status codes (CC) to errno values */
 static const int cc_to_error[16] = {
 	/* No  Error  */ 0,
 	/* CRC Error  */ -EILSEQ,
 	/* Bit Stuff  */ -EPROTO,
 	/* Data Togg  */ -EILSEQ,
 	/* Stall      */ -EPIPE,
 	/* DevNotResp */ -ETIME,
 	/* PIDCheck   */ -EPROTO,
 	/* UnExpPID   */ -EPROTO,
 	/* DataOver   */ -EOVERFLOW,
 	/* DataUnder  */ -EREMOTEIO,
 	/* (for hw)   */ -EIO,
 	/* (for hw)   */ -EIO,
 	/* BufferOver */ -ECOMM,
 	/* BuffUnder  */ -ENOSR,
 	/* (for HCD)  */ -EALREADY,
 	/* (for HCD)  */ -EALREADY
 };

 /*--------------------------------------------------------------*/

 #define	LOG2_PERIODIC_SIZE	5	/* arbitrary; this matches OHCI */
 #define	PERIODIC_SIZE		(1 << LOG2_PERIODIC_SIZE)

 struct isp116x {
 	spinlock_t lock;

 	void __iomem *addr_reg;
 	void __iomem *data_reg;

 	struct isp116x_platform_data *board;

 	struct dentry *dentry;
 	unsigned long stat1, stat2, stat4, stat8, stat16;

 	/* HC registers */
 	u32 intenb;		/* "OHCI" interrupts */
 	u16 irqenb;		/* uP interrupts */

 	/* Root hub registers */
 	u32 rhdesca;
 	u32 rhdescb;
 	u32 rhstatus;

 	/* async schedule: control, bulk */
 	struct list_head async;

 	/* periodic schedule: int */
 	u16 load[PERIODIC_SIZE];
 	struct isp116x_ep *periodic[PERIODIC_SIZE];
 	unsigned periodic_count;
 	u16 fmindex;

 	/* Schedule for the current frame */
 	struct isp116x_ep *atl_active;
 	int atl_buflen;
 	int atl_bufshrt;
 	int atl_last_dir;
 	atomic_t atl_finishing;
 };

 static inline struct isp116x *hcd_to_isp116x(struct usb_hcd *hcd)
 {
 	return (struct isp116x *)(hcd->hcd_priv);
 }

 static inline struct usb_hcd *isp116x_to_hcd(struct isp116x *isp116x)
 {
 	return container_of((void *)isp116x, struct usb_hcd, hcd_priv);
 }

 struct isp116x_ep {
 	struct usb_host_endpoint *hep;
 	struct usb_device *udev;
 	struct ptd ptd;

 	u8 maxpacket;
 	u8 epnum;
 	u8 nextpid;
 	u16 error_count;
 	u16 length;		/* of current packet */
 	unsigned char *data;	/* to databuf */
 	/* queue of active EP's (the ones scheduled for the
 	   current frame) */
 	struct isp116x_ep *active;

 	/* periodic schedule */
 	u16 period;
 	u16 branch;
 	u16 load;
 	struct isp116x_ep *next;

 	/* async schedule */
 	struct list_head schedule;
 };

 /*-------------------------------------------------------------------------*/

 #ifdef DEBUG
 #define DBG(stuff...)		printk(KERN_DEBUG "116x: " stuff)
 #else
 #define DBG(stuff...)		do{}while(0)
 #endif

 #ifdef VERBOSE
 #    define VDBG		DBG
 #else
 #    define VDBG(stuff...)	do{}while(0)
 #endif

 #define ERR(stuff...)		printk(KERN_ERR "116x: " stuff)
 #define WARN(stuff...)		printk(KERN_WARNING "116x: " stuff)
 #define INFO(stuff...)		printk(KERN_INFO "116x: " stuff)

 /* ------------------------------------------------- */

 #if defined(USE_PLATFORM_DELAY)
 #if defined(USE_NDELAY)
 #error USE_PLATFORM_DELAY and USE_NDELAY simultaneously defined.
 #endif
 #define	isp116x_delay(h,d)	(h)->board->delay(	\
 				isp116x_to_hcd(h)->self.controller,d)
 #define isp116x_check_platform_delay(h)	((h)->board->delay == NULL)
 #elif defined(USE_NDELAY)
 #define	isp116x_delay(h,d)	ndelay(d)
 #define isp116x_check_platform_delay(h)	0
 #else
 #define	isp116x_delay(h,d)	do{}while(0)
 #define isp116x_check_platform_delay(h)	0
 #endif

 #if defined(DEBUG)
 #define	IRQ_TEST()	BUG_ON(!irqs_disabled())
 #else
 #define	IRQ_TEST()	do{}while(0)
 #endif

 static inline void isp116x_write_addr(struct isp116x *isp116x, unsigned reg)
 {
 	IRQ_TEST();
 	writew(reg & 0xff, isp116x->addr_reg);
 	isp116x_delay(isp116x, 300);
 }

 static inline void isp116x_write_data16(struct isp116x *isp116x, u16 val)
 {
 	writew(val, isp116x->data_reg);
 	isp116x_delay(isp116x, 150);
 }

 static inline void isp116x_raw_write_data16(struct isp116x *isp116x, u16 val)
 {
 	__raw_writew(val, isp116x->data_reg);
 	isp116x_delay(isp116x, 150);
 }

 static inline u16 isp116x_read_data16(struct isp116x *isp116x)
 {
 	u16 val;

 	val = readw(isp116x->data_reg);
 	isp116x_delay(isp116x, 150);
 	return val;
 }

 static inline u16 isp116x_raw_read_data16(struct isp116x *isp116x)
 {
 	u16 val;

 	val = __raw_readw(isp116x->data_reg);
 	isp116x_delay(isp116x, 150);
 	return val;
 }

 static inline void isp116x_write_data32(struct isp116x *isp116x, u32 val)
 {
 	writew(val & 0xffff, isp116x->data_reg);
 	isp116x_delay(isp116x, 150);
 	writew(val >> 16, isp116x->data_reg);
 	isp116x_delay(isp116x, 150);
 }

 static inline u32 isp116x_read_data32(struct isp116x *isp116x)
 {
 	u32 val;

 	val = (u32) readw(isp116x->data_reg);
 	isp116x_delay(isp116x, 150);
 	val |= ((u32) readw(isp116x->data_reg)) << 16;
 	isp116x_delay(isp116x, 150);
 	return val;
 }

 /* Let's keep register access functions out of line. Hint:
    we wait at least 150 ns at every access.
 */
 static u16 isp116x_read_reg16(struct isp116x *isp116x, unsigned reg)
 {
 	isp116x_write_addr(isp116x, reg);
 	return isp116x_read_data16(isp116x);
 }

 static u32 isp116x_read_reg32(struct isp116x *isp116x, unsigned reg)
 {
 	isp116x_write_addr(isp116x, reg);
 	return isp116x_read_data32(isp116x);
 }

 static void isp116x_write_reg16(struct isp116x *isp116x, unsigned reg,
 				unsigned val)
 {
 	isp116x_write_addr(isp116x, reg | ISP116x_WRITE_OFFSET);
 	isp116x_write_data16(isp116x, (u16) (val & 0xffff));
 }

 static void isp116x_write_reg32(struct isp116x *isp116x, unsigned reg,
 				unsigned val)
 {
 	isp116x_write_addr(isp116x, reg | ISP116x_WRITE_OFFSET);
 	isp116x_write_data32(isp116x, (u32) val);
 }

 #define isp116x_show_reg_log(d,r,s) {				\
 	if ((r) < 0x20) {			                \
 		DBG("%-12s[%02x]: %08x\n", #r,			\
 			r, isp116x_read_reg32(d, r));		\
 	} else {						\
 		DBG("%-12s[%02x]:     %04x\n", #r,		\
 			r, isp116x_read_reg16(d, r));	    	\
 	}							\
 }
 #define isp116x_show_reg_seq(d,r,s) {				\
 	if ((r) < 0x20) {					\
 		seq_printf(s, "%-12s[%02x]: %08x\n", #r,	\
 			r, isp116x_read_reg32(d, r));		\
 	} else {						\
 		seq_printf(s, "%-12s[%02x]:     %04x\n", #r,	\
 			r, isp116x_read_reg16(d, r));		\
 	}							\
 }

 #define isp116x_show_regs(d,type,s) {			\
 	isp116x_show_reg_##type(d, HCREVISION, s);	\
 	isp116x_show_reg_##type(d, HCCONTROL, s);	\
 	isp116x_show_reg_##type(d, HCCMDSTAT, s);	\
 	isp116x_show_reg_##type(d, HCINTSTAT, s);	\
 	isp116x_show_reg_##type(d, HCINTENB, s);	\
 	isp116x_show_reg_##type(d, HCFMINTVL, s);	\
 	isp116x_show_reg_##type(d, HCFMREM, s);		\
 	isp116x_show_reg_##type(d, HCFMNUM, s);		\
 	isp116x_show_reg_##type(d, HCLSTHRESH, s);	\
 	isp116x_show_reg_##type(d, HCRHDESCA, s);	\
 	isp116x_show_reg_##type(d, HCRHDESCB, s);	\
 	isp116x_show_reg_##type(d, HCRHSTATUS, s);	\
 	isp116x_show_reg_##type(d, HCRHPORT1, s);	\
 	isp116x_show_reg_##type(d, HCRHPORT2, s);	\
 	isp116x_show_reg_##type(d, HCHWCFG, s);		\
 	isp116x_show_reg_##type(d, HCDMACFG, s);	\
 	isp116x_show_reg_##type(d, HCXFERCTR, s);	\
 	isp116x_show_reg_##type(d, HCuPINT, s);		\
 	isp116x_show_reg_##type(d, HCuPINTENB, s);	\
 	isp116x_show_reg_##type(d, HCCHIPID, s);	\
 	isp116x_show_reg_##type(d, HCSCRATCH, s);	\
 	isp116x_show_reg_##type(d, HCITLBUFLEN, s);	\
 	isp116x_show_reg_##type(d, HCATLBUFLEN, s);	\
 	isp116x_show_reg_##type(d, HCBUFSTAT, s);	\
 	isp116x_show_reg_##type(d, HCRDITL0LEN, s);	\
 	isp116x_show_reg_##type(d, HCRDITL1LEN, s);	\
 }

 /*
    Dump registers for debugfs.
 */
 static inline void isp116x_show_regs_seq(struct isp116x *isp116x,
 					  struct seq_file *s)
 {
 	isp116x_show_regs(isp116x, seq, s);
 }

 /*
    Dump registers to syslog.
 */
 static inline void isp116x_show_regs_log(struct isp116x *isp116x)
 {
 	isp116x_show_regs(isp116x, log, NULL);
 }

 #if defined(URB_TRACE)

 #define PIPETYPE(pipe)  ({ char *__s;			\
 	if (usb_pipecontrol(pipe))	__s = "ctrl";	\
 	else if (usb_pipeint(pipe))	__s = "int";	\
 	else if (usb_pipebulk(pipe))	__s = "bulk";	\
 	else				__s = "iso";	\
 	__s;})
 #define PIPEDIR(pipe)   ({ usb_pipein(pipe) ? "in" : "out"; })
 #define URB_NOTSHORT(urb) ({ (urb)->transfer_flags & URB_SHORT_NOT_OK ? \
 	"short_not_ok" : ""; })

 /* print debug info about the URB */
 static void urb_dbg(struct urb *urb, char *msg)
 {
 	unsigned int pipe;

 	if (!urb) {
 		DBG("%s: zero urb\n", msg);
 		return;
 	}
 	pipe = urb->pipe;
 	DBG("%s: FA %d ep%d%s %s: len %d/%d %s\n", msg,
 	    usb_pipedevice(pipe), usb_pipeendpoint(pipe),
 	    PIPEDIR(pipe), PIPETYPE(pipe),
 	    urb->transfer_buffer_length, urb->actual_length, URB_NOTSHORT(urb));
 }

 #else

 #define  urb_dbg(urb,msg)   do{}while(0)

 #endif				/* ! defined(URB_TRACE) */

 #if defined(PTD_TRACE)

 #define PTD_DIR_STR(ptd)  ({char __c;		\
 	switch(PTD_GET_DIR(ptd)){		\
 	case 0:  __c = 's'; break;		\
 	case 1:  __c = 'o'; break;		\
 	default: __c = 'i'; break;		\
 	}; __c;})

 /*
   Dump PTD info. The code documents the format
   perfectly, right :)
 */
 static inline void dump_ptd(struct ptd *ptd)
 {
 	printk("td: %x %d%c%d %d,%d,%d  %x %x%x%x\n",
 	       PTD_GET_CC(ptd), PTD_GET_FA(ptd),
 	       PTD_DIR_STR(ptd), PTD_GET_EP(ptd),
 	       PTD_GET_COUNT(ptd), PTD_GET_LEN(ptd), PTD_GET_MPS(ptd),
 	       PTD_GET_TOGGLE(ptd), PTD_GET_ACTIVE(ptd),
 	       PTD_GET_SPD(ptd), PTD_GET_LAST(ptd));
 }

 static inline void dump_ptd_out_data(struct ptd *ptd, u8 * buf)
 {
 	int k;

 	if (PTD_GET_DIR(ptd) != PTD_DIR_IN && PTD_GET_LEN(ptd)) {
 		printk("-> ");
 		for (k = 0; k < PTD_GET_LEN(ptd); ++k)
 			printk("%02x ", ((u8 *) buf)[k]);
 		printk("\n");
 	}
 }

 static inline void dump_ptd_in_data(struct ptd *ptd, u8 * buf)
 {
 	int k;

 	if (PTD_GET_DIR(ptd) == PTD_DIR_IN && PTD_GET_COUNT(ptd)) {
 		printk("<- ");
 		for (k = 0; k < PTD_GET_COUNT(ptd); ++k)
 			printk("%02x ", ((u8 *) buf)[k]);
 		printk("\n");
 	}
 	if (PTD_GET_LAST(ptd))
 		printk("-\n");
 }

 #else

 #define dump_ptd(ptd)               do{}while(0)
 #define dump_ptd_in_data(ptd,buf)   do{}while(0)
 #define dump_ptd_out_data(ptd,buf)  do{}while(0)

 #endif				/* ! defined(PTD_TRACE) */
	/*
	* ISP116x register declarations and HCD data structures
	*
	* Copyright (C) 2005 Olav Kongas <ok@artecdesign.ee>
	* Portions:
	* Copyright (C) 2004 Lothar Wassmann
	* Copyright (C) 2004 Psion Teklogix
	* Copyright (C) 2004 David Brownell
	*/

	/* us of 1ms frame */
	#define MAX_LOAD_LIMIT 850

	/* Full speed: max # of bytes to transfer for a single urb
	at a time must be < 1024 && must be multiple of 64.
	832 allows transfering 4kiB within 5 frames. */
	#define MAX_TRANSFER_SIZE_FULLSPEED 832

	/* Low speed: there is no reason to schedule in very big
	chunks; often the requested long transfers are for
	string descriptors containing short strings. */
	#define MAX_TRANSFER_SIZE_LOWSPEED 64

	/* Bytetime (us), a rough indication of how much time it
	would take to transfer a byte of useful data over USB */
	#define BYTE_TIME_FULLSPEED 1
	#define BYTE_TIME_LOWSPEED 20

	/* Buffer sizes */
	#define ISP116x_BUF_SIZE 4096
	#define ISP116x_ITL_BUFSIZE 0
	#define ISP116x_ATL_BUFSIZE ((ISP116x_BUF_SIZE) - 2*(ISP116x_ITL_BUFSIZE))

	#define ISP116x_WRITE_OFFSET 0x80

	/------------ ISP116x registers/bits ------------/
	#define HCREVISION 0x00
	#define HCCONTROL 0x01
	#define HCCONTROL_HCFS (3 << 6) /* host controller
	functional state */
	#define HCCONTROL_USB_RESET (0 << 6)
	#define HCCONTROL_USB_RESUME (1 << 6)
	#define HCCONTROL_USB_OPER (2 << 6)
	#define HCCONTROL_USB_SUSPEND (3 << 6)
	#define HCCONTROL_RWC (1 << 9) /* remote wakeup connected */
	#define HCCONTROL_RWE (1 << 10) /* remote wakeup enable */
	#define HCCMDSTAT 0x02
	#define HCCMDSTAT_HCR (1 << 0) /* host controller reset */
	#define HCCMDSTAT_SOC (3 << 16) /* scheduling overrun count */
	#define HCINTSTAT 0x03
	#define HCINT_SO (1 << 0) /* scheduling overrun */
	#define HCINT_WDH (1 << 1) /* writeback of done_head */
	#define HCINT_SF (1 << 2) /* start frame */
	#define HCINT_RD (1 << 3) /* resume detect */
	#define HCINT_UE (1 << 4) /* unrecoverable error */
	#define HCINT_FNO (1 << 5) /* frame number overflow */
	#define HCINT_RHSC (1 << 6) /* root hub status change */
	#define HCINT_OC (1 << 30) /* ownership change */
	#define HCINT_MIE (1 << 31) /* master interrupt enable */
	#define HCINTENB 0x04
	#define HCINTDIS 0x05
	#define HCFMINTVL 0x0d
	#define HCFMREM 0x0e
	#define HCFMNUM 0x0f
	#define HCLSTHRESH 0x11
	#define HCRHDESCA 0x12
	#define RH_A_NDP (0x3 << 0) /* # downstream ports */
	#define RH_A_PSM (1 << 8) /* power switching mode */
	#define RH_A_NPS (1 << 9) /* no power switching */
	#define RH_A_DT (1 << 10) /* device type (mbz) */
	#define RH_A_OCPM (1 << 11) /* overcurrent protection
	mode */
	#define RH_A_NOCP (1 << 12) /* no overcurrent protection */
	#define RH_A_POTPGT (0xff << 24) /* power on -> power good
	time */
	#define HCRHDESCB 0x13
	#define RH_B_DR (0xffff << 0) /* device removable flags */
	#define RH_B_PPCM (0xffff << 16) /* port power control mask */
	#define HCRHSTATUS 0x14
	#define RH_HS_LPS (1 << 0) /* local power status */
	#define RH_HS_OCI (1 << 1) /* over current indicator */
	#define RH_HS_DRWE (1 << 15) /* device remote wakeup
	enable */
	#define RH_HS_LPSC (1 << 16) /* local power status change */
	#define RH_HS_OCIC (1 << 17) /* over current indicator
	change */
	#define RH_HS_CRWE (1 << 31) /* clear remote wakeup
	enable */
	#define HCRHPORT1 0x15
	#define RH_PS_CCS (1 << 0) /* current connect status */
	#define RH_PS_PES (1 << 1) /* port enable status */
	#define RH_PS_PSS (1 << 2) /* port suspend status */
	#define RH_PS_POCI (1 << 3) /* port over current
	indicator */
	#define RH_PS_PRS (1 << 4) /* port reset status */
	#define RH_PS_PPS (1 << 8) /* port power status */
	#define RH_PS_LSDA (1 << 9) /* low speed device attached */
	#define RH_PS_CSC (1 << 16) /* connect status change */
	#define RH_PS_PESC (1 << 17) /* port enable status change */
	#define RH_PS_PSSC (1 << 18) /* port suspend status
	change */
	#define RH_PS_OCIC (1 << 19) /* over current indicator
	change */
	#define RH_PS_PRSC (1 << 20) /* port reset status change */
	#define HCRHPORT_CLRMASK (0x1f << 16)
	#define HCRHPORT2 0x16
	#define HCHWCFG 0x20
	#define HCHWCFG_15KRSEL (1 << 12)
	#define HCHWCFG_CLKNOTSTOP (1 << 11)
	#define HCHWCFG_ANALOG_OC (1 << 10)
	#define HCHWCFG_DACK_MODE (1 << 8)
	#define HCHWCFG_EOT_POL (1 << 7)
	#define HCHWCFG_DACK_POL (1 << 6)
	#define HCHWCFG_DREQ_POL (1 << 5)
	#define HCHWCFG_DBWIDTH_MASK (0x03 << 3)
	#define HCHWCFG_DBWIDTH(n) (((n) << 3) & HCHWCFG_DBWIDTH_MASK)
	#define HCHWCFG_INT_POL (1 << 2)
	#define HCHWCFG_INT_TRIGGER (1 << 1)
	#define HCHWCFG_INT_ENABLE (1 << 0)
	#define HCDMACFG 0x21
	#define HCDMACFG_BURST_LEN_MASK (0x03 << 5)
	#define HCDMACFG_BURST_LEN(n) (((n) << 5) & HCDMACFG_BURST_LEN_MASK)
	#define HCDMACFG_BURST_LEN_1 HCDMACFG_BURST_LEN(0)
	#define HCDMACFG_BURST_LEN_4 HCDMACFG_BURST_LEN(1)
	#define HCDMACFG_BURST_LEN_8 HCDMACFG_BURST_LEN(2)
	#define HCDMACFG_DMA_ENABLE (1 << 4)
	#define HCDMACFG_BUF_TYPE_MASK (0x07 << 1)
	#define HCDMACFG_CTR_SEL (1 << 2)
	#define HCDMACFG_ITLATL_SEL (1 << 1)
	#define HCDMACFG_DMA_RW_SELECT (1 << 0)
	#define HCXFERCTR 0x22
	#define HCuPINT 0x24
	#define HCuPINT_SOF (1 << 0)
	#define HCuPINT_ATL (1 << 1)
	#define HCuPINT_AIIEOT (1 << 2)
	#define HCuPINT_OPR (1 << 4)
	#define HCuPINT_SUSP (1 << 5)
	#define HCuPINT_CLKRDY (1 << 6)
	#define HCuPINTENB 0x25
	#define HCCHIPID 0x27
	#define HCCHIPID_MASK 0xff00
	#define HCCHIPID_MAGIC 0x6100
	#define HCSCRATCH 0x28
	#define HCSWRES 0x29
	#define HCSWRES_MAGIC 0x00f6
	#define HCITLBUFLEN 0x2a
	#define HCATLBUFLEN 0x2b
	#define HCBUFSTAT 0x2c
	#define HCBUFSTAT_ITL0_FULL (1 << 0)
	#define HCBUFSTAT_ITL1_FULL (1 << 1)
	#define HCBUFSTAT_ATL_FULL (1 << 2)
	#define HCBUFSTAT_ITL0_DONE (1 << 3)
	#define HCBUFSTAT_ITL1_DONE (1 << 4)
	#define HCBUFSTAT_ATL_DONE (1 << 5)
	#define HCRDITL0LEN 0x2d
	#define HCRDITL1LEN 0x2e
	#define HCITLPORT 0x40
	#define HCATLPORT 0x41

	/* Philips transfer descriptor */
	struct ptd {
	u16 count;
	#define PTD_COUNT_MSK (0x3ff << 0)
	#define PTD_TOGGLE_MSK (1 << 10)
	#define PTD_ACTIVE_MSK (1 << 11)
	#define PTD_CC_MSK (0xf << 12)
	u16 mps;
	#define PTD_MPS_MSK (0x3ff << 0)
	#define PTD_SPD_MSK (1 << 10)
	#define PTD_LAST_MSK (1 << 11)
	#define PTD_EP_MSK (0xf << 12)
	u16 len;
	#define PTD_LEN_MSK (0x3ff << 0)
	#define PTD_DIR_MSK (3 << 10)
	#define PTD_DIR_SETUP (0)
	#define PTD_DIR_OUT (1)
	#define PTD_DIR_IN (2)
	#define PTD_B5_5_MSK (1 << 13)
	u16 faddr;
	#define PTD_FA_MSK (0x7f << 0)
	#define PTD_FMT_MSK (1 << 7)
	} __attribute__ ((packed, aligned(2)));

	/* PTD accessor macros. */
	#define PTD_GET_COUNT(p) (((p)->count & PTD_COUNT_MSK) >> 0)
	#define PTD_COUNT(v) (((v) << 0) & PTD_COUNT_MSK)
	#define PTD_GET_TOGGLE(p) (((p)->count & PTD_TOGGLE_MSK) >> 10)
	#define PTD_TOGGLE(v) (((v) << 10) & PTD_TOGGLE_MSK)
	#define PTD_GET_ACTIVE(p) (((p)->count & PTD_ACTIVE_MSK) >> 11)
	#define PTD_ACTIVE(v) (((v) << 11) & PTD_ACTIVE_MSK)
	#define PTD_GET_CC(p) (((p)->count & PTD_CC_MSK) >> 12)
	#define PTD_CC(v) (((v) << 12) & PTD_CC_MSK)
	#define PTD_GET_MPS(p) (((p)->mps & PTD_MPS_MSK) >> 0)
	#define PTD_MPS(v) (((v) << 0) & PTD_MPS_MSK)
	#define PTD_GET_SPD(p) (((p)->mps & PTD_SPD_MSK) >> 10)
	#define PTD_SPD(v) (((v) << 10) & PTD_SPD_MSK)
	#define PTD_GET_LAST(p) (((p)->mps & PTD_LAST_MSK) >> 11)
	#define PTD_LAST(v) (((v) << 11) & PTD_LAST_MSK)
	#define PTD_GET_EP(p) (((p)->mps & PTD_EP_MSK) >> 12)
	#define PTD_EP(v) (((v) << 12) & PTD_EP_MSK)
	#define PTD_GET_LEN(p) (((p)->len & PTD_LEN_MSK) >> 0)
	#define PTD_LEN(v) (((v) << 0) & PTD_LEN_MSK)
	#define PTD_GET_DIR(p) (((p)->len & PTD_DIR_MSK) >> 10)
	#define PTD_DIR(v) (((v) << 10) & PTD_DIR_MSK)
	#define PTD_GET_B5_5(p) (((p)->len & PTD_B5_5_MSK) >> 13)
	#define PTD_B5_5(v) (((v) << 13) & PTD_B5_5_MSK)
	#define PTD_GET_FA(p) (((p)->faddr & PTD_FA_MSK) >> 0)
	#define PTD_FA(v) (((v) << 0) & PTD_FA_MSK)
	#define PTD_GET_FMT(p) (((p)->faddr & PTD_FMT_MSK) >> 7)
	#define PTD_FMT(v) (((v) << 7) & PTD_FMT_MSK)

	/* Hardware transfer status codes -- CC from ptd->count */
	#define TD_CC_NOERROR 0x00
	#define TD_CC_CRC 0x01
	#define TD_CC_BITSTUFFING 0x02
	#define TD_CC_DATATOGGLEM 0x03
	#define TD_CC_STALL 0x04
	#define TD_DEVNOTRESP 0x05
	#define TD_PIDCHECKFAIL 0x06
	#define TD_UNEXPECTEDPID 0x07
	#define TD_DATAOVERRUN 0x08
	#define TD_DATAUNDERRUN 0x09
	/* 0x0A, 0x0B reserved for hardware */
	#define TD_BUFFEROVERRUN 0x0C
	#define TD_BUFFERUNDERRUN 0x0D
	/* 0x0E, 0x0F reserved for HCD */
	#define TD_NOTACCESSED 0x0F

	/* map PTD status codes (CC) to errno values */
	static const int cc_to_error[16] = {
	/* No Error */ 0,
	/* CRC Error */ -EILSEQ,
	/* Bit Stuff */ -EPROTO,
	/* Data Togg */ -EILSEQ,
	/* Stall */ -EPIPE,
	/* DevNotResp */ -ETIME,
	/* PIDCheck */ -EPROTO,
	/* UnExpPID */ -EPROTO,
	/* DataOver */ -EOVERFLOW,
	/* DataUnder */ -EREMOTEIO,
	/* (for hw) */ -EIO,
	/* (for hw) */ -EIO,
	/* BufferOver */ -ECOMM,
	/* BuffUnder */ -ENOSR,
	/* (for HCD) */ -EALREADY,
	/* (for HCD) */ -EALREADY
	};

	/--------------------------------------------------------------/

	#define LOG2_PERIODIC_SIZE 5 /* arbitrary; this matches OHCI */
	#define PERIODIC_SIZE (1 << LOG2_PERIODIC_SIZE)

	struct isp116x {
	spinlock_t lock;

	void __iomem *addr_reg;
	void __iomem *data_reg;

	struct isp116x_platform_data *board;

	struct dentry *dentry;
	unsigned long stat1, stat2, stat4, stat8, stat16;

	/* HC registers */
	u32 intenb; /* "OHCI" interrupts */
	u16 irqenb; /* uP interrupts */

	/* Root hub registers */
	u32 rhdesca;
	u32 rhdescb;
	u32 rhstatus;

	/* async schedule: control, bulk */
	struct list_head async;

	/* periodic schedule: int */
	u16 load[PERIODIC_SIZE];
	struct isp116x_ep *periodic[PERIODIC_SIZE];
	unsigned periodic_count;
	u16 fmindex;

	/* Schedule for the current frame */
	struct isp116x_ep *atl_active;
	int atl_buflen;
	int atl_bufshrt;
	int atl_last_dir;
	atomic_t atl_finishing;
	};

	static inline struct isp116x hcd_to_isp116x(struct usb_hcd hcd)
	{
	return (struct isp116x *)(hcd->hcd_priv);
	}

	static inline struct usb_hcd isp116x_to_hcd(struct isp116x isp116x)
	{
	return container_of((void *)isp116x, struct usb_hcd, hcd_priv);
	}

	struct isp116x_ep {
	struct usb_host_endpoint *hep;
	struct usb_device *udev;
	struct ptd ptd;

	u8 maxpacket;
	u8 epnum;
	u8 nextpid;
	u16 error_count;
	u16 length; /* of current packet */
	unsigned char data; / to databuf */
	/* queue of active EP's (the ones scheduled for the
	current frame) */
	struct isp116x_ep *active;

	/* periodic schedule */
	u16 period;
	u16 branch;
	u16 load;
	struct isp116x_ep *next;

	/* async schedule */
	struct list_head schedule;
	};

	/-------------------------------------------------------------------------/

	#ifdef DEBUG
	#define DBG(stuff...) printk(KERN_DEBUG "116x: " stuff)
	#else
	#define DBG(stuff...) do{}while(0)
	#endif

	#ifdef VERBOSE
	# define VDBG DBG
	#else
	# define VDBG(stuff...) do{}while(0)
	#endif

	#define ERR(stuff...) printk(KERN_ERR "116x: " stuff)
	#define WARN(stuff...) printk(KERN_WARNING "116x: " stuff)
	#define INFO(stuff...) printk(KERN_INFO "116x: " stuff)

	/* ------------------------------------------------- */

	#if defined(USE_PLATFORM_DELAY)
	#if defined(USE_NDELAY)
	#error USE_PLATFORM_DELAY and USE_NDELAY simultaneously defined.
	#endif
	#define isp116x_delay(h,d) (h)->board->delay( \
	isp116x_to_hcd(h)->self.controller,d)
	#define isp116x_check_platform_delay(h) ((h)->board->delay == NULL)
	#elif defined(USE_NDELAY)
	#define isp116x_delay(h,d) ndelay(d)
	#define isp116x_check_platform_delay(h) 0
	#else
	#define isp116x_delay(h,d) do{}while(0)
	#define isp116x_check_platform_delay(h) 0
	#endif

	#if defined(DEBUG)
	#define IRQ_TEST() BUG_ON(!irqs_disabled())
	#else
	#define IRQ_TEST() do{}while(0)
	#endif

	static inline void isp116x_write_addr(struct isp116x *isp116x, unsigned reg)
	{
	IRQ_TEST();
	writew(reg & 0xff, isp116x->addr_reg);
	isp116x_delay(isp116x, 300);
	}

	static inline void isp116x_write_data16(struct isp116x *isp116x, u16 val)
	{
	writew(val, isp116x->data_reg);
	isp116x_delay(isp116x, 150);
	}

	static inline void isp116x_raw_write_data16(struct isp116x *isp116x, u16 val)
	{
	__raw_writew(val, isp116x->data_reg);
	isp116x_delay(isp116x, 150);
	}

	static inline u16 isp116x_read_data16(struct isp116x *isp116x)
	{
	u16 val;

	val = readw(isp116x->data_reg);
	isp116x_delay(isp116x, 150);
	return val;
	}

	static inline u16 isp116x_raw_read_data16(struct isp116x *isp116x)
	{
	u16 val;

	val = __raw_readw(isp116x->data_reg);
	isp116x_delay(isp116x, 150);
	return val;
	}

	static inline void isp116x_write_data32(struct isp116x *isp116x, u32 val)
	{
	writew(val & 0xffff, isp116x->data_reg);
	isp116x_delay(isp116x, 150);
	writew(val >> 16, isp116x->data_reg);
	isp116x_delay(isp116x, 150);
	}

	static inline u32 isp116x_read_data32(struct isp116x *isp116x)
	{
	u32 val;

	val = (u32) readw(isp116x->data_reg);
	isp116x_delay(isp116x, 150);
	val \|= ((u32) readw(isp116x->data_reg)) << 16;
	isp116x_delay(isp116x, 150);
	return val;
	}

	/* Let's keep register access functions out of line. Hint:
	we wait at least 150 ns at every access.
	*/
	static u16 isp116x_read_reg16(struct isp116x *isp116x, unsigned reg)
	{
	isp116x_write_addr(isp116x, reg);
	return isp116x_read_data16(isp116x);
	}

	static u32 isp116x_read_reg32(struct isp116x *isp116x, unsigned reg)
	{
	isp116x_write_addr(isp116x, reg);
	return isp116x_read_data32(isp116x);
	}

	static void isp116x_write_reg16(struct isp116x *isp116x, unsigned reg,
	unsigned val)
	{
	isp116x_write_addr(isp116x, reg \| ISP116x_WRITE_OFFSET);
	isp116x_write_data16(isp116x, (u16) (val & 0xffff));
	}

	static void isp116x_write_reg32(struct isp116x *isp116x, unsigned reg,
	unsigned val)
	{
	isp116x_write_addr(isp116x, reg \| ISP116x_WRITE_OFFSET);
	isp116x_write_data32(isp116x, (u32) val);
	}

	#define isp116x_show_reg_log(d,r,s) { \
	if ((r) < 0x20) { \
	DBG("%-12s[%02x]: %08x\n", #r, \
	r, isp116x_read_reg32(d, r)); \
	} else { \
	DBG("%-12s[%02x]: %04x\n", #r, \
	r, isp116x_read_reg16(d, r)); \
	} \
	}
	#define isp116x_show_reg_seq(d,r,s) { \
	if ((r) < 0x20) { \
	seq_printf(s, "%-12s[%02x]: %08x\n", #r, \
	r, isp116x_read_reg32(d, r)); \
	} else { \
	seq_printf(s, "%-12s[%02x]: %04x\n", #r, \
	r, isp116x_read_reg16(d, r)); \
	} \
	}

	#define isp116x_show_regs(d,type,s) { \
	isp116x_show_reg_##type(d, HCREVISION, s); \
	isp116x_show_reg_##type(d, HCCONTROL, s); \
	isp116x_show_reg_##type(d, HCCMDSTAT, s); \
	isp116x_show_reg_##type(d, HCINTSTAT, s); \
	isp116x_show_reg_##type(d, HCINTENB, s); \
	isp116x_show_reg_##type(d, HCFMINTVL, s); \
	isp116x_show_reg_##type(d, HCFMREM, s); \
	isp116x_show_reg_##type(d, HCFMNUM, s); \
	isp116x_show_reg_##type(d, HCLSTHRESH, s); \
	isp116x_show_reg_##type(d, HCRHDESCA, s); \
	isp116x_show_reg_##type(d, HCRHDESCB, s); \
	isp116x_show_reg_##type(d, HCRHSTATUS, s); \
	isp116x_show_reg_##type(d, HCRHPORT1, s); \
	isp116x_show_reg_##type(d, HCRHPORT2, s); \
	isp116x_show_reg_##type(d, HCHWCFG, s); \
	isp116x_show_reg_##type(d, HCDMACFG, s); \
	isp116x_show_reg_##type(d, HCXFERCTR, s); \
	isp116x_show_reg_##type(d, HCuPINT, s); \
	isp116x_show_reg_##type(d, HCuPINTENB, s); \
	isp116x_show_reg_##type(d, HCCHIPID, s); \
	isp116x_show_reg_##type(d, HCSCRATCH, s); \
	isp116x_show_reg_##type(d, HCITLBUFLEN, s); \
	isp116x_show_reg_##type(d, HCATLBUFLEN, s); \
	isp116x_show_reg_##type(d, HCBUFSTAT, s); \
	isp116x_show_reg_##type(d, HCRDITL0LEN, s); \
	isp116x_show_reg_##type(d, HCRDITL1LEN, s); \
	}

	/*
	Dump registers for debugfs.
	*/
	static inline void isp116x_show_regs_seq(struct isp116x *isp116x,
	struct seq_file *s)
	{
	isp116x_show_regs(isp116x, seq, s);
	}

	/*
	Dump registers to syslog.
	*/
	static inline void isp116x_show_regs_log(struct isp116x *isp116x)
	{
	isp116x_show_regs(isp116x, log, NULL);
	}

	#if defined(URB_TRACE)

	#define PIPETYPE(pipe) ({ char *__s; \
	if (usb_pipecontrol(pipe)) __s = "ctrl"; \
	else if (usb_pipeint(pipe)) __s = "int"; \
	else if (usb_pipebulk(pipe)) __s = "bulk"; \
	else __s = "iso"; \
	__s;})
	#define PIPEDIR(pipe) ({ usb_pipein(pipe) ? "in" : "out"; })
	#define URB_NOTSHORT(urb) ({ (urb)->transfer_flags & URB_SHORT_NOT_OK ? \
	"short_not_ok" : ""; })

	/* print debug info about the URB */
	static void urb_dbg(struct urb urb, char msg)
	{
	unsigned int pipe;

	if (!urb) {
	DBG("%s: zero urb\n", msg);
	return;
	}
	pipe = urb->pipe;
	DBG("%s: FA %d ep%d%s %s: len %d/%d %s\n", msg,
	usb_pipedevice(pipe), usb_pipeendpoint(pipe),
	PIPEDIR(pipe), PIPETYPE(pipe),
	urb->transfer_buffer_length, urb->actual_length, URB_NOTSHORT(urb));
	}

	#else

	#define urb_dbg(urb,msg) do{}while(0)

	#endif /* ! defined(URB_TRACE) */

	#if defined(PTD_TRACE)

	#define PTD_DIR_STR(ptd) ({char __c; \
	switch(PTD_GET_DIR(ptd)){ \
	case 0: __c = 's'; break; \
	case 1: __c = 'o'; break; \
	default: __c = 'i'; break; \
	}; __c;})

	/*
	Dump PTD info. The code documents the format
	perfectly, right :)
	*/
	static inline void dump_ptd(struct ptd *ptd)
	{
	printk("td: %x %d%c%d %d,%d,%d %x %x%x%x\n",
	PTD_GET_CC(ptd), PTD_GET_FA(ptd),
	PTD_DIR_STR(ptd), PTD_GET_EP(ptd),
	PTD_GET_COUNT(ptd), PTD_GET_LEN(ptd), PTD_GET_MPS(ptd),
	PTD_GET_TOGGLE(ptd), PTD_GET_ACTIVE(ptd),
	PTD_GET_SPD(ptd), PTD_GET_LAST(ptd));
	}

	static inline void dump_ptd_out_data(struct ptd ptd, u8 buf)
	{
	int k;

	if (PTD_GET_DIR(ptd) != PTD_DIR_IN && PTD_GET_LEN(ptd)) {
	printk("-> ");
	for (k = 0; k < PTD_GET_LEN(ptd); ++k)
	printk("%02x ", ((u8 *) buf)[k]);
	printk("\n");
	}
	}

	static inline void dump_ptd_in_data(struct ptd ptd, u8 buf)
	{
	int k;

	if (PTD_GET_DIR(ptd) == PTD_DIR_IN && PTD_GET_COUNT(ptd)) {
	printk("<- ");
	for (k = 0; k < PTD_GET_COUNT(ptd); ++k)
	printk("%02x ", ((u8 *) buf)[k]);
	printk("\n");
	}
	if (PTD_GET_LAST(ptd))
	printk("-\n");
	}

	#else

	#define dump_ptd(ptd) do{}while(0)
	#define dump_ptd_in_data(ptd,buf) do{}while(0)
	#define dump_ptd_out_data(ptd,buf) do{}while(0)

	#endif /* ! defined(PTD_TRACE) */