| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Lothar Waßmann | 3796 | 99.68% | 1 | 14.29% |
| Mike Frysinger | 5 | 0.13% | 1 | 14.29% |
| Roel Kluin | 2 | 0.05% | 1 | 14.29% |
| Ken MacLeod | 2 | 0.05% | 1 | 14.29% |
| Geert Uytterhoeven | 1 | 0.03% | 1 | 14.29% |
| Greg Kroah-Hartman | 1 | 0.03% | 1 | 14.29% |
| Lee Jones | 1 | 0.03% | 1 | 14.29% |
| Total | 3808 | 7 |
/* SPDX-License-Identifier: GPL-2.0 */ /* * ISP1362 HCD (Host Controller Driver) for USB. * * COPYRIGHT (C) by L. Wassmann <LW@KARO-electronics.de> */ /* ------------------------------------------------------------------------- */ #define MAX_ROOT_PORTS 2 #define USE_32BIT 0 /* These options are mutually exclusive */ #define USE_PLATFORM_DELAY 0 #define USE_NDELAY 0 #define DUMMY_DELAY_ACCESS do {} while (0) /* ------------------------------------------------------------------------- */ #define USB_RESET_WIDTH 50 #define MAX_XFER_SIZE 1023 /* Buffer sizes */ #define ISP1362_BUF_SIZE 4096 #define ISP1362_ISTL_BUFSIZE 512 #define ISP1362_INTL_BLKSIZE 64 #define ISP1362_INTL_BUFFERS 16 #define ISP1362_ATL_BLKSIZE 64 #define ISP1362_REG_WRITE_OFFSET 0x80 #define REG_WIDTH_16 0x000 #define REG_WIDTH_32 0x100 #define REG_WIDTH_MASK 0x100 #define REG_NO_MASK 0x0ff #ifdef ISP1362_DEBUG typedef const unsigned int isp1362_reg_t; #define REG_ACCESS_R 0x200 #define REG_ACCESS_W 0x400 #define REG_ACCESS_RW 0x600 #define REG_ACCESS_MASK 0x600 #define ISP1362_REG_NO(r) ((r) & REG_NO_MASK) #define ISP1362_REG(name, addr, width, rw) \ static isp1362_reg_t ISP1362_REG_##name = ((addr) | (width) | (rw)) #define REG_ACCESS_TEST(r) BUG_ON(((r) & ISP1362_REG_WRITE_OFFSET) && !((r) & REG_ACCESS_W)) #define REG_WIDTH_TEST(r, w) BUG_ON(((r) & REG_WIDTH_MASK) != (w)) #else typedef const unsigned char isp1362_reg_t; #define ISP1362_REG_NO(r) (r) #define ISP1362_REG(name, addr, width, rw) \ static isp1362_reg_t __maybe_unused ISP1362_REG_##name = addr #define REG_ACCESS_TEST(r) do {} while (0) #define REG_WIDTH_TEST(r, w) do {} while (0) #endif /* OHCI compatible registers */ /* * Note: Some of the ISP1362 'OHCI' registers implement only * a subset of the bits defined in the OHCI spec. * * Bitmasks for the individual bits of these registers are defined in "ohci.h" */ ISP1362_REG(HCREVISION, 0x00, REG_WIDTH_32, REG_ACCESS_R); ISP1362_REG(HCCONTROL, 0x01, REG_WIDTH_32, REG_ACCESS_RW); ISP1362_REG(HCCMDSTAT, 0x02, REG_WIDTH_32, REG_ACCESS_RW); ISP1362_REG(HCINTSTAT, 0x03, REG_WIDTH_32, REG_ACCESS_RW); ISP1362_REG(HCINTENB, 0x04, REG_WIDTH_32, REG_ACCESS_RW); ISP1362_REG(HCINTDIS, 0x05, REG_WIDTH_32, REG_ACCESS_RW); ISP1362_REG(HCFMINTVL, 0x0d, REG_WIDTH_32, REG_ACCESS_RW); ISP1362_REG(HCFMREM, 0x0e, REG_WIDTH_32, REG_ACCESS_RW); ISP1362_REG(HCFMNUM, 0x0f, REG_WIDTH_32, REG_ACCESS_RW); ISP1362_REG(HCLSTHRESH, 0x11, REG_WIDTH_32, REG_ACCESS_RW); ISP1362_REG(HCRHDESCA, 0x12, REG_WIDTH_32, REG_ACCESS_RW); ISP1362_REG(HCRHDESCB, 0x13, REG_WIDTH_32, REG_ACCESS_RW); ISP1362_REG(HCRHSTATUS, 0x14, REG_WIDTH_32, REG_ACCESS_RW); ISP1362_REG(HCRHPORT1, 0x15, REG_WIDTH_32, REG_ACCESS_RW); ISP1362_REG(HCRHPORT2, 0x16, REG_WIDTH_32, REG_ACCESS_RW); /* Philips ISP1362 specific registers */ ISP1362_REG(HCHWCFG, 0x20, REG_WIDTH_16, REG_ACCESS_RW); #define HCHWCFG_DISABLE_SUSPEND (1 << 15) #define HCHWCFG_GLOBAL_PWRDOWN (1 << 14) #define HCHWCFG_PULLDOWN_DS2 (1 << 13) #define HCHWCFG_PULLDOWN_DS1 (1 << 12) #define HCHWCFG_CLKNOTSTOP (1 << 11) #define HCHWCFG_ANALOG_OC (1 << 10) #define HCHWCFG_ONEINT (1 << 9) #define HCHWCFG_DACK_MODE (1 << 8) #define HCHWCFG_ONEDMA (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) ISP1362_REG(HCDMACFG, 0x21, REG_WIDTH_16, REG_ACCESS_RW); #define HCDMACFG_CTR_ENABLE (1 << 7) #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_BUF_TYPE(n) (((n) << 1) & HCDMACFG_BUF_TYPE_MASK) #define HCDMACFG_BUF_ISTL0 HCDMACFG_BUF_TYPE(0) #define HCDMACFG_BUF_ISTL1 HCDMACFG_BUF_TYPE(1) #define HCDMACFG_BUF_INTL HCDMACFG_BUF_TYPE(2) #define HCDMACFG_BUF_ATL HCDMACFG_BUF_TYPE(3) #define HCDMACFG_BUF_DIRECT HCDMACFG_BUF_TYPE(4) #define HCDMACFG_DMA_RW_SELECT (1 << 0) ISP1362_REG(HCXFERCTR, 0x22, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(HCuPINT, 0x24, REG_WIDTH_16, REG_ACCESS_RW); #define HCuPINT_SOF (1 << 0) #define HCuPINT_ISTL0 (1 << 1) #define HCuPINT_ISTL1 (1 << 2) #define HCuPINT_EOT (1 << 3) #define HCuPINT_OPR (1 << 4) #define HCuPINT_SUSP (1 << 5) #define HCuPINT_CLKRDY (1 << 6) #define HCuPINT_INTL (1 << 7) #define HCuPINT_ATL (1 << 8) #define HCuPINT_OTG (1 << 9) ISP1362_REG(HCuPINTENB, 0x25, REG_WIDTH_16, REG_ACCESS_RW); /* same bit definitions apply as for HCuPINT */ ISP1362_REG(HCCHIPID, 0x27, REG_WIDTH_16, REG_ACCESS_R); #define HCCHIPID_MASK 0xff00 #define HCCHIPID_MAGIC 0x3600 ISP1362_REG(HCSCRATCH, 0x28, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(HCSWRES, 0x29, REG_WIDTH_16, REG_ACCESS_W); #define HCSWRES_MAGIC 0x00f6 ISP1362_REG(HCBUFSTAT, 0x2c, REG_WIDTH_16, REG_ACCESS_RW); #define HCBUFSTAT_ISTL0_FULL (1 << 0) #define HCBUFSTAT_ISTL1_FULL (1 << 1) #define HCBUFSTAT_INTL_ACTIVE (1 << 2) #define HCBUFSTAT_ATL_ACTIVE (1 << 3) #define HCBUFSTAT_RESET_HWPP (1 << 4) #define HCBUFSTAT_ISTL0_ACTIVE (1 << 5) #define HCBUFSTAT_ISTL1_ACTIVE (1 << 6) #define HCBUFSTAT_ISTL0_DONE (1 << 8) #define HCBUFSTAT_ISTL1_DONE (1 << 9) #define HCBUFSTAT_PAIRED_PTDPP (1 << 10) ISP1362_REG(HCDIRADDR, 0x32, REG_WIDTH_32, REG_ACCESS_RW); #define HCDIRADDR_ADDR_MASK 0x0000ffff #define HCDIRADDR_ADDR(n) (((n) << 0) & HCDIRADDR_ADDR_MASK) #define HCDIRADDR_COUNT_MASK 0xffff0000 #define HCDIRADDR_COUNT(n) (((n) << 16) & HCDIRADDR_COUNT_MASK) ISP1362_REG(HCDIRDATA, 0x45, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(HCISTLBUFSZ, 0x30, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(HCISTL0PORT, 0x40, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(HCISTL1PORT, 0x42, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(HCISTLRATE, 0x47, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(HCINTLBUFSZ, 0x33, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(HCINTLPORT, 0x43, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(HCINTLBLKSZ, 0x53, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(HCINTLDONE, 0x17, REG_WIDTH_32, REG_ACCESS_R); ISP1362_REG(HCINTLSKIP, 0x18, REG_WIDTH_32, REG_ACCESS_RW); ISP1362_REG(HCINTLLAST, 0x19, REG_WIDTH_32, REG_ACCESS_RW); ISP1362_REG(HCINTLCURR, 0x1a, REG_WIDTH_16, REG_ACCESS_R); ISP1362_REG(HCATLBUFSZ, 0x34, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(HCATLPORT, 0x44, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(HCATLBLKSZ, 0x54, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(HCATLDONE, 0x1b, REG_WIDTH_32, REG_ACCESS_R); ISP1362_REG(HCATLSKIP, 0x1c, REG_WIDTH_32, REG_ACCESS_RW); ISP1362_REG(HCATLLAST, 0x1d, REG_WIDTH_32, REG_ACCESS_RW); ISP1362_REG(HCATLCURR, 0x1e, REG_WIDTH_16, REG_ACCESS_R); ISP1362_REG(HCATLDTC, 0x51, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(HCATLDTCTO, 0x52, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(OTGCONTROL, 0x62, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(OTGSTATUS, 0x67, REG_WIDTH_16, REG_ACCESS_R); ISP1362_REG(OTGINT, 0x68, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(OTGINTENB, 0x69, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(OTGTIMER, 0x6A, REG_WIDTH_16, REG_ACCESS_RW); ISP1362_REG(OTGALTTMR, 0x6C, REG_WIDTH_16, REG_ACCESS_RW); /* Philips transfer descriptor, cpu-endian */ 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) u16 faddr; #define PTD_FA_MSK (0x7f << 0) /* PTD Byte 7: [StartingFrame (if ISO PTD) | StartingFrame[0..4], PollingRate[0..2] (if INT PTD)] */ #define PTD_SF_ISO_MSK (0xff << 8) #define PTD_SF_INT_MSK (0x1f << 8) #define PTD_PR_MSK (0x07 << 13) } __attribute__ ((packed, aligned(2))); #define PTD_HEADER_SIZE sizeof(struct ptd) /* ------------------------------------------------------------------------- */ /* Copied from ohci.h: */ /* * Hardware transfer status codes -- CC from PTD */ #define PTD_CC_NOERROR 0x00 #define PTD_CC_CRC 0x01 #define PTD_CC_BITSTUFFING 0x02 #define PTD_CC_DATATOGGLEM 0x03 #define PTD_CC_STALL 0x04 #define PTD_DEVNOTRESP 0x05 #define PTD_PIDCHECKFAIL 0x06 #define PTD_UNEXPECTEDPID 0x07 #define PTD_DATAOVERRUN 0x08 #define PTD_DATAUNDERRUN 0x09 /* 0x0A, 0x0B reserved for hardware */ #define PTD_BUFFEROVERRUN 0x0C #define PTD_BUFFERUNDERRUN 0x0D /* 0x0E, 0x0F reserved for HCD */ #define PTD_NOTACCESSED 0x0F /* map OHCI TD 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 }; /* * HcControl (control) register masks */ #define OHCI_CTRL_HCFS (3 << 6) /* host controller functional state */ #define OHCI_CTRL_RWC (1 << 9) /* remote wakeup connected */ #define OHCI_CTRL_RWE (1 << 10) /* remote wakeup enable */ /* pre-shifted values for HCFS */ # define OHCI_USB_RESET (0 << 6) # define OHCI_USB_RESUME (1 << 6) # define OHCI_USB_OPER (2 << 6) # define OHCI_USB_SUSPEND (3 << 6) /* * HcCommandStatus (cmdstatus) register masks */ #define OHCI_HCR (1 << 0) /* host controller reset */ #define OHCI_SOC (3 << 16) /* scheduling overrun count */ /* * masks used with interrupt registers: * HcInterruptStatus (intrstatus) * HcInterruptEnable (intrenable) * HcInterruptDisable (intrdisable) */ #define OHCI_INTR_SO (1 << 0) /* scheduling overrun */ #define OHCI_INTR_WDH (1 << 1) /* writeback of done_head */ #define OHCI_INTR_SF (1 << 2) /* start frame */ #define OHCI_INTR_RD (1 << 3) /* resume detect */ #define OHCI_INTR_UE (1 << 4) /* unrecoverable error */ #define OHCI_INTR_FNO (1 << 5) /* frame number overflow */ #define OHCI_INTR_RHSC (1 << 6) /* root hub status change */ #define OHCI_INTR_OC (1 << 30) /* ownership change */ #define OHCI_INTR_MIE (1 << 31) /* master interrupt enable */ /* roothub.portstatus [i] bits */ #define RH_PS_CCS 0x00000001 /* current connect status */ #define RH_PS_PES 0x00000002 /* port enable status*/ #define RH_PS_PSS 0x00000004 /* port suspend status */ #define RH_PS_POCI 0x00000008 /* port over current indicator */ #define RH_PS_PRS 0x00000010 /* port reset status */ #define RH_PS_PPS 0x00000100 /* port power status */ #define RH_PS_LSDA 0x00000200 /* low speed device attached */ #define RH_PS_CSC 0x00010000 /* connect status change */ #define RH_PS_PESC 0x00020000 /* port enable status change */ #define RH_PS_PSSC 0x00040000 /* port suspend status change */ #define RH_PS_OCIC 0x00080000 /* over current indicator change */ #define RH_PS_PRSC 0x00100000 /* port reset status change */ /* roothub.status bits */ #define RH_HS_LPS 0x00000001 /* local power status */ #define RH_HS_OCI 0x00000002 /* over current indicator */ #define RH_HS_DRWE 0x00008000 /* device remote wakeup enable */ #define RH_HS_LPSC 0x00010000 /* local power status change */ #define RH_HS_OCIC 0x00020000 /* over current indicator change */ #define RH_HS_CRWE 0x80000000 /* clear remote wakeup enable */ /* roothub.b masks */ #define RH_B_DR 0x0000ffff /* device removable flags */ #define RH_B_PPCM 0xffff0000 /* port power control mask */ /* roothub.a masks */ #define RH_A_NDP (0xff << 0) /* number of 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) /* over current protection mode */ #define RH_A_NOCP (1 << 12) /* no over current protection */ #define RH_A_POTPGT (0xff << 24) /* power on to power good time */ #define FI 0x2edf /* 12000 bits per frame (-1) */ #define FSMP(fi) (0x7fff & ((6 * ((fi) - 210)) / 7)) #define LSTHRESH 0x628 /* lowspeed bit threshold */ /* ------------------------------------------------------------------------- */ /* 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_FA(p) (((p)->faddr & PTD_FA_MSK) >> 0) #define PTD_FA(v) (((v) << 0) & PTD_FA_MSK) #define PTD_GET_SF_INT(p) (((p)->faddr & PTD_SF_INT_MSK) >> 8) #define PTD_SF_INT(v) (((v) << 8) & PTD_SF_INT_MSK) #define PTD_GET_SF_ISO(p) (((p)->faddr & PTD_SF_ISO_MSK) >> 8) #define PTD_SF_ISO(v) (((v) << 8) & PTD_SF_ISO_MSK) #define PTD_GET_PR(p) (((p)->faddr & PTD_PR_MSK) >> 13) #define PTD_PR(v) (((v) << 13) & PTD_PR_MSK) #define LOG2_PERIODIC_SIZE 5 /* arbitrary; this matches OHCI */ #define PERIODIC_SIZE (1 << LOG2_PERIODIC_SIZE) struct isp1362_ep { struct usb_host_endpoint *hep; struct usb_device *udev; /* philips transfer descriptor */ struct ptd ptd; u8 maxpacket; u8 epnum; u8 nextpid; u16 error_count; u16 length; /* of current packet */ s16 ptd_offset; /* buffer offset in ISP1362 where PTD has been stored (for access thru HCDIRDATA) */ int ptd_index; int num_ptds; void *data; /* to databuf */ /* queue of active EPs (the ones transmitted to the chip) */ struct list_head active; /* periodic schedule */ u8 branch; u16 interval; u16 load; u16 last_iso; /* async schedule */ struct list_head schedule; /* list of all EPs that need processing */ struct list_head remove_list; int num_req; }; struct isp1362_ep_queue { struct list_head active; /* list of PTDs currently processed by HC */ atomic_t finishing; unsigned long buf_map; unsigned long skip_map; int free_ptd; u16 buf_start; u16 buf_size; u16 blk_size; /* PTD buffer block size for ATL and INTL */ u8 buf_count; u8 buf_avail; char name[16]; /* for statistical tracking */ u8 stat_maxptds; /* Max # of ptds seen simultaneously in fifo */ u8 ptd_count; /* number of ptds submitted to this queue */ }; struct isp1362_hcd { spinlock_t lock; void __iomem *addr_reg; void __iomem *data_reg; struct isp1362_platform_data *board; 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[MAX_ROOT_PORTS]; unsigned long next_statechange; /* HC control reg shadow copy */ u32 hc_control; /* async schedule: control, bulk */ struct list_head async; /* periodic schedule: int */ u16 load[PERIODIC_SIZE]; struct list_head periodic; u16 fmindex; /* periodic schedule: isochronous */ struct list_head isoc; unsigned int istl_flip:1; unsigned int irq_active:1; /* Schedules for the current frame */ struct isp1362_ep_queue atl_queue; struct isp1362_ep_queue intl_queue; struct isp1362_ep_queue istl_queue[2]; /* list of PTDs retrieved from HC */ struct list_head remove_list; enum { ISP1362_INT_SOF, ISP1362_INT_ISTL0, ISP1362_INT_ISTL1, ISP1362_INT_EOT, ISP1362_INT_OPR, ISP1362_INT_SUSP, ISP1362_INT_CLKRDY, ISP1362_INT_INTL, ISP1362_INT_ATL, ISP1362_INT_OTG, NUM_ISP1362_IRQS } IRQ_NAMES; unsigned int irq_stat[NUM_ISP1362_IRQS]; int req_serial; }; static inline const char *ISP1362_INT_NAME(int n) { switch (n) { case ISP1362_INT_SOF: return "SOF"; case ISP1362_INT_ISTL0: return "ISTL0"; case ISP1362_INT_ISTL1: return "ISTL1"; case ISP1362_INT_EOT: return "EOT"; case ISP1362_INT_OPR: return "OPR"; case ISP1362_INT_SUSP: return "SUSP"; case ISP1362_INT_CLKRDY: return "CLKRDY"; case ISP1362_INT_INTL: return "INTL"; case ISP1362_INT_ATL: return "ATL"; case ISP1362_INT_OTG: return "OTG"; default: return "unknown"; } } static inline void ALIGNSTAT(struct isp1362_hcd *isp1362_hcd, void *ptr) { unsigned long p = (unsigned long)ptr; if (!(p & 0xf)) isp1362_hcd->stat16++; else if (!(p & 0x7)) isp1362_hcd->stat8++; else if (!(p & 0x3)) isp1362_hcd->stat4++; else if (!(p & 0x1)) isp1362_hcd->stat2++; else isp1362_hcd->stat1++; } static inline struct isp1362_hcd *hcd_to_isp1362_hcd(struct usb_hcd *hcd) { return (struct isp1362_hcd *) (hcd->hcd_priv); } static inline struct usb_hcd *isp1362_hcd_to_hcd(struct isp1362_hcd *isp1362_hcd) { return container_of((void *)isp1362_hcd, struct usb_hcd, hcd_priv); } #define frame_before(f1, f2) ((s16)((u16)f1 - (u16)f2) < 0) /* * ISP1362 HW Interface */ #define DBG(level, fmt...) \ do { \ if (dbg_level > level) \ pr_debug(fmt); \ } while (0) #ifdef VERBOSE # define VDBG(fmt...) DBG(3, fmt) #else # define VDBG(fmt...) do {} while (0) #endif #ifdef REGISTERS # define RDBG(fmt...) DBG(1, fmt) #else # define RDBG(fmt...) do {} while (0) #endif #ifdef URB_TRACE #define URB_DBG(fmt...) DBG(0, fmt) #else #define URB_DBG(fmt...) do {} while (0) #endif #if USE_PLATFORM_DELAY #if USE_NDELAY #error USE_PLATFORM_DELAY and USE_NDELAY defined simultaneously. #endif #define isp1362_delay(h, d) (h)->board->delay(isp1362_hcd_to_hcd(h)->self.controller, d) #elif USE_NDELAY #define isp1362_delay(h, d) ndelay(d) #else #define isp1362_delay(h, d) do {} while (0) #endif #define get_urb(ep) ({ \ BUG_ON(list_empty(&ep->hep->urb_list)); \ container_of(ep->hep->urb_list.next, struct urb, urb_list); \ }) /* basic access functions for ISP1362 chip registers */ /* NOTE: The contents of the address pointer register cannot be read back! The driver must ensure, * that all register accesses are performed with interrupts disabled, since the interrupt * handler has no way of restoring the previous state. */ static void isp1362_write_addr(struct isp1362_hcd *isp1362_hcd, isp1362_reg_t reg) { REG_ACCESS_TEST(reg); DUMMY_DELAY_ACCESS; writew(ISP1362_REG_NO(reg), isp1362_hcd->addr_reg); DUMMY_DELAY_ACCESS; isp1362_delay(isp1362_hcd, 1); } static void isp1362_write_data16(struct isp1362_hcd *isp1362_hcd, u16 val) { DUMMY_DELAY_ACCESS; writew(val, isp1362_hcd->data_reg); } static u16 isp1362_read_data16(struct isp1362_hcd *isp1362_hcd) { u16 val; DUMMY_DELAY_ACCESS; val = readw(isp1362_hcd->data_reg); return val; } static void isp1362_write_data32(struct isp1362_hcd *isp1362_hcd, u32 val) { #if USE_32BIT DUMMY_DELAY_ACCESS; writel(val, isp1362_hcd->data_reg); #else DUMMY_DELAY_ACCESS; writew((u16)val, isp1362_hcd->data_reg); DUMMY_DELAY_ACCESS; writew(val >> 16, isp1362_hcd->data_reg); #endif } static u32 isp1362_read_data32(struct isp1362_hcd *isp1362_hcd) { u32 val; #if USE_32BIT DUMMY_DELAY_ACCESS; val = readl(isp1362_hcd->data_reg); #else DUMMY_DELAY_ACCESS; val = (u32)readw(isp1362_hcd->data_reg); DUMMY_DELAY_ACCESS; val |= (u32)readw(isp1362_hcd->data_reg) << 16; #endif return val; } /* use readsw/writesw to access the fifo whenever possible */ /* assume HCDIRDATA or XFERCTR & addr_reg have been set up */ static void isp1362_read_fifo(struct isp1362_hcd *isp1362_hcd, void *buf, u16 len) { u8 *dp = buf; u16 data; if (!len) return; RDBG("%s: Reading %d byte from fifo to mem @ %p\n", __func__, len, buf); #if USE_32BIT if (len >= 4) { RDBG("%s: Using readsl for %d dwords\n", __func__, len >> 2); readsl(isp1362_hcd->data_reg, dp, len >> 2); dp += len & ~3; len &= 3; } #endif if (len >= 2) { RDBG("%s: Using readsw for %d words\n", __func__, len >> 1); insw((unsigned long)isp1362_hcd->data_reg, dp, len >> 1); dp += len & ~1; len &= 1; } BUG_ON(len & ~1); if (len > 0) { data = isp1362_read_data16(isp1362_hcd); RDBG("%s: Reading trailing byte %02x to mem @ %08x\n", __func__, (u8)data, (u32)dp); *dp = (u8)data; } } static void isp1362_write_fifo(struct isp1362_hcd *isp1362_hcd, void *buf, u16 len) { u8 *dp = buf; u16 data; if (!len) return; if ((unsigned long)dp & 0x1) { /* not aligned */ for (; len > 1; len -= 2) { data = *dp++; data |= *dp++ << 8; isp1362_write_data16(isp1362_hcd, data); } if (len) isp1362_write_data16(isp1362_hcd, *dp); return; } RDBG("%s: Writing %d byte to fifo from memory @%p\n", __func__, len, buf); #if USE_32BIT if (len >= 4) { RDBG("%s: Using writesl for %d dwords\n", __func__, len >> 2); writesl(isp1362_hcd->data_reg, dp, len >> 2); dp += len & ~3; len &= 3; } #endif if (len >= 2) { RDBG("%s: Using writesw for %d words\n", __func__, len >> 1); outsw((unsigned long)isp1362_hcd->data_reg, dp, len >> 1); dp += len & ~1; len &= 1; } BUG_ON(len & ~1); if (len > 0) { /* finally write any trailing byte; we don't need to care * about the high byte of the last word written */ data = (u16)*dp; RDBG("%s: Sending trailing byte %02x from mem @ %08x\n", __func__, data, (u32)dp); isp1362_write_data16(isp1362_hcd, data); } } #define isp1362_read_reg16(d, r) ({ \ u16 __v; \ REG_WIDTH_TEST(ISP1362_REG_##r, REG_WIDTH_16); \ isp1362_write_addr(d, ISP1362_REG_##r); \ __v = isp1362_read_data16(d); \ RDBG("%s: Read %04x from %s[%02x]\n", __func__, __v, #r, \ ISP1362_REG_NO(ISP1362_REG_##r)); \ __v; \ }) #define isp1362_read_reg32(d, r) ({ \ u32 __v; \ REG_WIDTH_TEST(ISP1362_REG_##r, REG_WIDTH_32); \ isp1362_write_addr(d, ISP1362_REG_##r); \ __v = isp1362_read_data32(d); \ RDBG("%s: Read %08x from %s[%02x]\n", __func__, __v, #r, \ ISP1362_REG_NO(ISP1362_REG_##r)); \ __v; \ }) #define isp1362_write_reg16(d, r, v) { \ REG_WIDTH_TEST(ISP1362_REG_##r, REG_WIDTH_16); \ isp1362_write_addr(d, (ISP1362_REG_##r) | ISP1362_REG_WRITE_OFFSET); \ isp1362_write_data16(d, (u16)(v)); \ RDBG("%s: Wrote %04x to %s[%02x]\n", __func__, (u16)(v), #r, \ ISP1362_REG_NO(ISP1362_REG_##r)); \ } #define isp1362_write_reg32(d, r, v) { \ REG_WIDTH_TEST(ISP1362_REG_##r, REG_WIDTH_32); \ isp1362_write_addr(d, (ISP1362_REG_##r) | ISP1362_REG_WRITE_OFFSET); \ isp1362_write_data32(d, (u32)(v)); \ RDBG("%s: Wrote %08x to %s[%02x]\n", __func__, (u32)(v), #r, \ ISP1362_REG_NO(ISP1362_REG_##r)); \ } #define isp1362_set_mask16(d, r, m) { \ u16 __v; \ __v = isp1362_read_reg16(d, r); \ if ((__v | m) != __v) \ isp1362_write_reg16(d, r, __v | m); \ } #define isp1362_clr_mask16(d, r, m) { \ u16 __v; \ __v = isp1362_read_reg16(d, r); \ if ((__v & ~m) != __v) \ isp1362_write_reg16(d, r, __v & ~m); \ } #define isp1362_set_mask32(d, r, m) { \ u32 __v; \ __v = isp1362_read_reg32(d, r); \ if ((__v | m) != __v) \ isp1362_write_reg32(d, r, __v | m); \ } #define isp1362_clr_mask32(d, r, m) { \ u32 __v; \ __v = isp1362_read_reg32(d, r); \ if ((__v & ~m) != __v) \ isp1362_write_reg32(d, r, __v & ~m); \ } #define isp1362_show_reg(d, r) { \ if ((ISP1362_REG_##r & REG_WIDTH_MASK) == REG_WIDTH_32) \ DBG(0, "%-12s[%02x]: %08x\n", #r, \ ISP1362_REG_NO(ISP1362_REG_##r), isp1362_read_reg32(d, r)); \ else \ DBG(0, "%-12s[%02x]: %04x\n", #r, \ ISP1362_REG_NO(ISP1362_REG_##r), isp1362_read_reg16(d, r)); \ } static void isp1362_write_diraddr(struct isp1362_hcd *isp1362_hcd, u16 offset, u16 len) { len = (len + 1) & ~1; isp1362_clr_mask16(isp1362_hcd, HCDMACFG, HCDMACFG_CTR_ENABLE); isp1362_write_reg32(isp1362_hcd, HCDIRADDR, HCDIRADDR_ADDR(offset) | HCDIRADDR_COUNT(len)); } static void isp1362_read_buffer(struct isp1362_hcd *isp1362_hcd, void *buf, u16 offset, int len) { isp1362_write_diraddr(isp1362_hcd, offset, len); DBG(3, "%s: Reading %d byte from buffer @%04x to memory @ %p\n", __func__, len, offset, buf); isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT); isp1362_write_addr(isp1362_hcd, ISP1362_REG_HCDIRDATA); isp1362_read_fifo(isp1362_hcd, buf, len); isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT); } static void isp1362_write_buffer(struct isp1362_hcd *isp1362_hcd, void *buf, u16 offset, int len) { isp1362_write_diraddr(isp1362_hcd, offset, len); DBG(3, "%s: Writing %d byte to buffer @%04x from memory @ %p\n", __func__, len, offset, buf); isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT); isp1362_write_addr(isp1362_hcd, ISP1362_REG_HCDIRDATA | ISP1362_REG_WRITE_OFFSET); isp1362_write_fifo(isp1362_hcd, buf, len); isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT); } static void __attribute__((unused)) dump_data(char *buf, int len) { if (dbg_level > 0) { int k; int lf = 0; for (k = 0; k < len; ++k) { if (!lf) DBG(0, "%04x:", k); printk(" %02x", ((u8 *) buf)[k]); lf = 1; if (!k) continue; if (k % 16 == 15) { printk("\n"); lf = 0; continue; } if (k % 8 == 7) printk(" "); if (k % 4 == 3) printk(" "); } if (lf) printk("\n"); } } #if defined(PTD_TRACE) static void dump_ptd(struct ptd *ptd) { DBG(0, "EP %p: CC=%x EP=%d DIR=%x CNT=%d LEN=%d MPS=%d TGL=%x ACT=%x FA=%d SPD=%x SF=%x PR=%x LST=%x\n", container_of(ptd, struct isp1362_ep, ptd), PTD_GET_CC(ptd), PTD_GET_EP(ptd), PTD_GET_DIR(ptd), PTD_GET_COUNT(ptd), PTD_GET_LEN(ptd), PTD_GET_MPS(ptd), PTD_GET_TOGGLE(ptd), PTD_GET_ACTIVE(ptd), PTD_GET_FA(ptd), PTD_GET_SPD(ptd), PTD_GET_SF_INT(ptd), PTD_GET_PR(ptd), PTD_GET_LAST(ptd)); DBG(0, " %04x %04x %04x %04x\n", ptd->count, ptd->mps, ptd->len, ptd->faddr); } static void dump_ptd_out_data(struct ptd *ptd, u8 *buf) { if (dbg_level > 0) { if (PTD_GET_DIR(ptd) != PTD_DIR_IN && PTD_GET_LEN(ptd)) { DBG(0, "--out->\n"); dump_data(buf, PTD_GET_LEN(ptd)); } } } static void dump_ptd_in_data(struct ptd *ptd, u8 *buf) { if (dbg_level > 0) { if (PTD_GET_DIR(ptd) == PTD_DIR_IN && PTD_GET_COUNT(ptd)) { DBG(0, "<--in--\n"); dump_data(buf, PTD_GET_COUNT(ptd)); } DBG(0, "-----\n"); } } static void dump_ptd_queue(struct isp1362_ep_queue *epq) { struct isp1362_ep *ep; int dbg = dbg_level; dbg_level = 1; list_for_each_entry(ep, &epq->active, active) { dump_ptd(&ep->ptd); dump_data(ep->data, ep->length); } dbg_level = dbg; } #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) #define dump_ptd_data(ptd, buf) do {} while (0) #define dump_ptd_queue(epq) do {} while (0) #endif
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