patch-2.3.41 linux/drivers/usb/ohci-hcd.h
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- Lines: 408
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.3.40/linux/drivers/usb/ohci-hcd.h
- Orig date:
Fri Jan 21 18:19:17 2000
diff -u --recursive --new-file v2.3.40/linux/drivers/usb/ohci-hcd.h linux/drivers/usb/ohci-hcd.h
@@ -1,407 +0,0 @@
- /*
- * URB OHCI HCD (Host Controller Driver) for USB.
- *
- *(C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
- *
- * ohci-hcd.h
- *
- */
-
-
-#define MODSTR "ohci: "
-
-
-static int cc_to_error[16] = {
-
-/* mapping of the OHCI CC status to error codes */
-#ifdef USB_ST_CRC /* status codes */
- /* No Error */ USB_ST_NOERROR,
- /* CRC Error */ USB_ST_CRC,
- /* Bit Stuff */ USB_ST_BITSTUFF,
- /* Data Togg */ USB_ST_CRC,
- /* Stall */ USB_ST_STALL,
- /* DevNotResp */ USB_ST_NORESPONSE,
- /* PIDCheck */ USB_ST_BITSTUFF,
- /* UnExpPID */ USB_ST_BITSTUFF,
- /* DataOver */ USB_ST_DATAOVERRUN,
- /* DataUnder */ USB_ST_DATAUNDERRUN,
- /* reservd */ USB_ST_NORESPONSE,
- /* reservd */ USB_ST_NORESPONSE,
- /* BufferOver */ USB_ST_BUFFEROVERRUN,
- /* BuffUnder */ USB_ST_BUFFERUNDERRUN,
- /* Not Access */ USB_ST_NORESPONSE,
- /* Not Access */ USB_ST_NORESPONSE
-};
-
-#else /* error codes */
- /* No Error */ 0,
- /* CRC Error */ -EILSEQ,
- /* Bit Stuff */ -EPROTO,
- /* Data Togg */ -EILSEQ,
- /* Stall */ -EPIPE,
- /* DevNotResp */ -ETIMEDOUT,
- /* PIDCheck */ -EPROTO,
- /* UnExpPID */ -EPROTO,
- /* DataOver */ -EOVERFLOW,
- /* DataUnder */ -EREMOTEIO,
- /* reservd */ -ETIMEDOUT,
- /* reservd */ -ETIMEDOUT,
- /* BufferOver */ -ECOMM,
- /* BuffUnder */ -ECOMM,
- /* Not Access */ -ETIMEDOUT,
- /* Not Access */ -ETIMEDOUT
-};
-#define USB_ST_URB_PENDING -EINPROGRESS
-#endif
-
-
-
-struct ed;
-struct td;
-/* for ED and TD structures */
-
-/* ED States */
-
-#define ED_NEW 0x00
-#define ED_UNLINK 0x01
-#define ED_OPER 0x02
-#define ED_DEL 0x04
-#define ED_URB_DEL 0x08
-
-/* usb_ohci_ed */
-typedef struct ed {
- __u32 hwINFO;
- __u32 hwTailP;
- __u32 hwHeadP;
- __u32 hwNextED;
-
- struct ed * ed_prev;
- __u8 int_period;
- __u8 int_branch;
- __u8 int_load;
- __u8 int_interval;
- __u8 state;
- __u8 type;
- __u16 last_iso;
- struct ed * ed_rm_list;
-
-} ed_t;
-
-
-/* TD info field */
-#define TD_CC 0xf0000000
-#define TD_CC_GET(td_p) ((td_p >>28) & 0x0f)
-#define TD_CC_SET(td_p, cc) (td_p) = ((td_p) & 0x0fffffff) | (((cc) & 0x0f) << 28)
-#define TD_EC 0x0C000000
-#define TD_T 0x03000000
-#define TD_T_DATA0 0x02000000
-#define TD_T_DATA1 0x03000000
-#define TD_T_TOGGLE 0x00000000
-#define TD_R 0x00040000
-#define TD_DI 0x00E00000
-#define TD_DI_SET(X) (((X) & 0x07)<< 21)
-#define TD_DP 0x00180000
-#define TD_DP_SETUP 0x00000000
-#define TD_DP_IN 0x00100000
-#define TD_DP_OUT 0x00080000
-
-#define TD_ISO 0x00010000
-#define TD_DEL 0x00020000
-
-/* CC Codes */
-#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
-#define TD_BUFFEROVERRUN 0x0C
-#define TD_BUFFERUNDERRUN 0x0D
-#define TD_NOTACCESSED 0x0F
-
-
-#define MAXPSW 1
-
-typedef struct td {
- __u32 hwINFO;
- __u32 hwCBP; /* Current Buffer Pointer */
- __u32 hwNextTD; /* Next TD Pointer */
- __u32 hwBE; /* Memory Buffer End Pointer */
- __u16 hwPSW[MAXPSW];
-
- __u8 type;
- __u8 index;
- struct ed * ed;
- struct td * next_dl_td;
- urb_t * urb;
-} td_t;
-
-
-/* TD types */
-#define BULK 0x03
-#define INT 0x01
-#define CTRL 0x02
-#define ISO 0x00
-
-#define SEND 0x01
-#define ST_ADDR 0x02
-#define ADD_LEN 0x04
-#define DEL 0x08
-
-
-#define OHCI_ED_SKIP (1 << 14)
-
-/*
- * The HCCA (Host Controller Communications Area) is a 256 byte
- * structure defined in the OHCI spec. that the host controller is
- * told the base address of. It must be 256-byte aligned.
- */
-
-#define NUM_INTS 32 /* part of the OHCI standard */
-struct ohci_hcca {
- __u32 int_table[NUM_INTS]; /* Interrupt ED table */
- __u16 frame_no; /* current frame number */
- __u16 pad1; /* set to 0 on each frame_no change */
- __u32 done_head; /* info returned for an interrupt */
- u8 reserved_for_hc[116];
-} __attribute((aligned(256)));
-
-
-/*
- * Maximum number of root hub ports.
- */
-#define MAX_ROOT_PORTS 15 /* maximum OHCI root hub ports */
-
-/*
- * This is the structure of the OHCI controller's memory mapped I/O
- * region. This is Memory Mapped I/O. You must use the readl() and
- * writel() macros defined in asm/io.h to access these!!
- */
-struct ohci_regs {
- /* control and status registers */
- __u32 revision;
- __u32 control;
- __u32 cmdstatus;
- __u32 intrstatus;
- __u32 intrenable;
- __u32 intrdisable;
- /* memory pointers */
- __u32 hcca;
- __u32 ed_periodcurrent;
- __u32 ed_controlhead;
- __u32 ed_controlcurrent;
- __u32 ed_bulkhead;
- __u32 ed_bulkcurrent;
- __u32 donehead;
- /* frame counters */
- __u32 fminterval;
- __u32 fmremaining;
- __u32 fmnumber;
- __u32 periodicstart;
- __u32 lsthresh;
- /* Root hub ports */
- struct ohci_roothub_regs {
- __u32 a;
- __u32 b;
- __u32 status;
- __u32 portstatus[MAX_ROOT_PORTS];
- } roothub;
-} __attribute((aligned(32)));
-
-/*
- * cmdstatus register */
-#define OHCI_CLF 0x02
-#define OHCI_BLF 0x04
-
-/*
- * Interrupt register masks
- */
-#define OHCI_INTR_SO (1)
-#define OHCI_INTR_WDH (1 << 1)
-#define OHCI_INTR_SF (1 << 2)
-#define OHCI_INTR_RD (1 << 3)
-#define OHCI_INTR_UE (1 << 4)
-#define OHCI_INTR_FNO (1 << 5)
-#define OHCI_INTR_RHSC (1 << 6)
-#define OHCI_INTR_OC (1 << 30)
-#define OHCI_INTR_MIE (1 << 31)
-
-/*
- * Control register masks
- */
-#define OHCI_USB_RESET 0
-#define OHCI_USB_RESUME (1 << 6)
-#define OHCI_USB_OPER (2 << 6)
-#define OHCI_USB_SUSPEND (3 << 6)
-
-
-/* Virtual Root HUB */
-struct virt_root_hub {
- int devnum; /* Address of Root Hub endpoint */
- void * urb;
- void * int_addr;
- int send;
- int interval;
- struct timer_list rh_int_timer;
-};
-
-/* destination of request */
-#define RH_INTERFACE 0x01
-#define RH_ENDPOINT 0x02
-#define RH_OTHER 0x03
-
-#define RH_CLASS 0x20
-#define RH_VENDOR 0x40
-
-/* Requests: bRequest << 8 | bmRequestType */
-#define RH_GET_STATUS 0x0080
-#define RH_CLEAR_FEATURE 0x0100
-#define RH_SET_FEATURE 0x0300
-#define RH_SET_ADDRESS 0x0500
-#define RH_GET_DESCRIPTOR 0x0680
-#define RH_SET_DESCRIPTOR 0x0700
-#define RH_GET_CONFIGURATION 0x0880
-#define RH_SET_CONFIGURATION 0x0900
-#define RH_GET_STATE 0x0280
-#define RH_GET_INTERFACE 0x0A80
-#define RH_SET_INTERFACE 0x0B00
-#define RH_SYNC_FRAME 0x0C80
-/* Our Vendor Specific Request */
-#define RH_SET_EP 0x2000
-
-
-/* Hub port features */
-#define RH_PORT_CONNECTION 0x00
-#define RH_PORT_ENABLE 0x01
-#define RH_PORT_SUSPEND 0x02
-#define RH_PORT_OVER_CURRENT 0x03
-#define RH_PORT_RESET 0x04
-#define RH_PORT_POWER 0x08
-#define RH_PORT_LOW_SPEED 0x09
-#define RH_C_PORT_CONNECTION 0x10
-#define RH_C_PORT_ENABLE 0x11
-#define RH_C_PORT_SUSPEND 0x12
-#define RH_C_PORT_OVER_CURRENT 0x13
-#define RH_C_PORT_RESET 0x14
-
-/* Hub features */
-#define RH_C_HUB_LOCAL_POWER 0x00
-#define RH_C_HUB_OVER_CURRENT 0x01
-
-#define RH_DEVICE_REMOTE_WAKEUP 0x00
-#define RH_ENDPOINT_STALL 0x01
-
-#define RH_ACK 0x01
-#define RH_REQ_ERR -1
-#define RH_NACK 0x00
-
-/* Root-Hub Register info */
-
-#define RH_PS_CCS 0x00000001
-#define RH_PS_PES 0x00000002
-#define RH_PS_PSS 0x00000004
-#define RH_PS_POCI 0x00000008
-#define RH_PS_PRS 0x00000010
-#define RH_PS_PPS 0x00000100
-#define RH_PS_LSDA 0x00000200
-#define RH_PS_CSC 0x00010000
-#define RH_PS_PESC 0x00020000
-#define RH_PS_PSSC 0x00040000
-#define RH_PS_OCIC 0x00080000
-#define RH_PS_PRSC 0x00100000
-
-/* Root hub status bits */
-#define RH_HS_LPS 0x00000001
-#define RH_HS_OCI 0x00000002
-#define RH_HS_DRWE 0x00008000
-#define RH_HS_LPSC 0x00010000
-#define RH_HS_OCIC 0x00020000
-#define RH_HS_CRWE 0x80000000
-
-#define min(a,b) (((a)<(b))?(a):(b))
-
-
-/* urb */
-typedef struct
-{
- ed_t * ed;
- __u16 length; // number of tds associated with this request
- __u16 td_cnt; // number of tds already serviced
- int state;
- void * wait;
- td_t * td[0]; // list pointer to all corresponding TDs associated with this request
-
-} urb_priv_t;
-#define URB_DEL 1
-
-/*
- * This is the full ohci controller description
- *
- * Note how the "proper" USB information is just
- * a subset of what the full implementation needs. (Linus)
- */
-
-
-typedef struct ohci {
- struct ohci_hcca hcca; /* hcca */
-
- int irq;
- struct ohci_regs * regs; /* OHCI controller's memory */
- struct list_head ohci_hcd_list; /* list of all ohci_hcd */
-
- struct ohci * next; // chain of uhci device contexts
- struct list_head urb_list; // list of all pending urbs
- spinlock_t urb_list_lock; // lock to keep consistency
-
- int ohci_int_load[32]; /* load of the 32 Interrupt Chains (for load ballancing)*/
- ed_t * ed_rm_list[2]; /* lists of all endpoints to be removed */
- ed_t * ed_bulktail; /* last endpoint of bulk list */
- ed_t * ed_controltail; /* last endpoint of control list */
- ed_t * ed_isotail; /* last endpoint of iso list */
- int intrstatus;
- __u32 hc_control; /* copy of the hc control reg */
- struct usb_bus * bus;
- struct usb_device * dev[128];
- struct virt_root_hub rh;
-} ohci_t;
-
-
-#define NUM_TDS 0 /* num of preallocated transfer descriptors */
-#define NUM_EDS 32 /* num of preallocated endpoint descriptors */
-
-struct ohci_device {
- ed_t ed[NUM_EDS];
- int ed_cnt;
- void * wait;
-};
-
-// #define ohci_to_usb(ohci) ((ohci)->usb)
-#define usb_to_ohci(usb) ((struct ohci_device *)(usb)->hcpriv)
-
-/* hcd */
-/* endpoint */
-static int ep_link(ohci_t * ohci, ed_t * ed);
-static int ep_unlink(ohci_t * ohci, ed_t * ed);
-static ed_t * ep_add_ed(struct usb_device * usb_dev, unsigned int pipe, int interval, int load);
-static void ep_rm_ed(struct usb_device * usb_dev, ed_t * ed);
-/* td */
-static void td_fill(unsigned int info, void * data, int len, urb_t * urb, int type, int index);
-static void td_submit_urb(urb_t * urb);
-/* root hub */
-static int rh_submit_urb(urb_t * urb);
-static int rh_unlink_urb(urb_t * urb);
-static int rh_init_int_timer(urb_t * urb);
-
-#ifdef DEBUG
-#define OHCI_FREE(x) kfree(x); printk("OHCI FREE: %d: %4x\n", -- __ohci_free_cnt, (unsigned int) x)
-#define OHCI_ALLOC(x,size) (x) = kmalloc(size, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL); printk("OHCI ALLO: %d: %4x\n", ++ __ohci_free_cnt,(unsigned int) x)
-static int __ohci_free_cnt = 0;
-#else
-#define OHCI_FREE(x) kfree(x)
-#define OHCI_ALLOC(x,size) (x) = kmalloc(size, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL)
-#endif
-
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