[PATCH] USB: Add isp116x-hcd USB host controller driver
This patch provides an "isp116x-hcd" driver for Philips'
ISP1160/ISP1161 USB host controllers.
The driver:
- is relatively small, meant for use on embedded platforms.
- runs usbtests 1-14 without problems for days.
- has been in use by 6-7 different people on ARM and PPC platforms,
running a range of devices including USB hubs.
- supports suspend/resume of both the platform device and the root hub;
supports remote wakeup of the root hub (but NOT the platform device)
by USB devices.
- does NOT support ISO transfers (nobody has asked for them).
- is PIO-only.
Signed-off-by: Olav Kongas <ok@artecdesign.ee>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/host/isp116x.h b/drivers/usb/host/isp116x.h
new file mode 100644
index 0000000..5887347
--- /dev/null
+++ b/drivers/usb/host/isp116x.h
@@ -0,0 +1,583 @@
+/*
+ * 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 */ -ETIMEDOUT,
+ /* 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;
+ struct work_struct rh_resume;
+
+ void __iomem *addr_reg;
+ void __iomem *data_reg;
+
+ struct isp116x_platform_data *board;
+
+ struct proc_dir_entry *pde;
+ 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;
+ u32 rhport[2];
+
+ /* 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(d,r) { \
+ 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)); \
+ } \
+}
+
+static inline void isp116x_show_regs(struct isp116x *isp116x)
+{
+ isp116x_show_reg(isp116x, HCREVISION);
+ isp116x_show_reg(isp116x, HCCONTROL);
+ isp116x_show_reg(isp116x, HCCMDSTAT);
+ isp116x_show_reg(isp116x, HCINTSTAT);
+ isp116x_show_reg(isp116x, HCINTENB);
+ isp116x_show_reg(isp116x, HCFMINTVL);
+ isp116x_show_reg(isp116x, HCFMREM);
+ isp116x_show_reg(isp116x, HCFMNUM);
+ isp116x_show_reg(isp116x, HCLSTHRESH);
+ isp116x_show_reg(isp116x, HCRHDESCA);
+ isp116x_show_reg(isp116x, HCRHDESCB);
+ isp116x_show_reg(isp116x, HCRHSTATUS);
+ isp116x_show_reg(isp116x, HCRHPORT1);
+ isp116x_show_reg(isp116x, HCRHPORT2);
+ isp116x_show_reg(isp116x, HCHWCFG);
+ isp116x_show_reg(isp116x, HCDMACFG);
+ isp116x_show_reg(isp116x, HCXFERCTR);
+ isp116x_show_reg(isp116x, HCuPINT);
+ isp116x_show_reg(isp116x, HCuPINTENB);
+ isp116x_show_reg(isp116x, HCCHIPID);
+ isp116x_show_reg(isp116x, HCSCRATCH);
+ isp116x_show_reg(isp116x, HCITLBUFLEN);
+ isp116x_show_reg(isp116x, HCATLBUFLEN);
+ isp116x_show_reg(isp116x, HCBUFSTAT);
+ isp116x_show_reg(isp116x, HCRDITL0LEN);
+ isp116x_show_reg(isp116x, HCRDITL1LEN);
+}
+
+#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) */
