X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/00549f6de02bdb40a6470fe998edcbd3e048357e..4ee0ee8dd9033d4772b07b4d9aee42ca0b82e863:/target/linux/adm5120/files/drivers/usb/host/adm5120.h diff --git a/target/linux/adm5120/files/drivers/usb/host/adm5120.h b/target/linux/adm5120/files/drivers/usb/host/adm5120.h index f8b576a4c..a3acfe53b 100644 --- a/target/linux/adm5120/files/drivers/usb/host/adm5120.h +++ b/target/linux/adm5120/files/drivers/usb/host/adm5120.h @@ -1,10 +1,16 @@ /* - * OHCI HCD (Host Controller Driver) for USB. + * ADM5120 HCD (Host Controller Driver) for USB * - * (C) Copyright 1999 Roman Weissgaerber - * (C) Copyright 2000-2002 David Brownell + * Copyright (C) 2007,2008 Gabor Juhos + * + * This file was derived from: drivers/usb/host/ohci.h + * (C) Copyright 1999 Roman Weissgaerber + * (C) Copyright 2000-2002 David Brownell + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. * - * This file is licenced under the GPL. */ /* @@ -56,25 +62,21 @@ struct ed { dma_addr_t dma; /* addr of ED */ struct td *dummy; /* next TD to activate */ - struct urb_priv *urb_active; /* active URB */ - struct list_head urb_pending; /* pending URBs */ - - struct list_head ed_list; /* list of all EDs*/ - struct list_head rm_list; /* for remove list */ + struct list_head urb_list; /* list of our URBs */ /* host's view of schedule */ struct ed *ed_next; /* on schedule list */ struct ed *ed_prev; /* for non-interrupt EDs */ struct ed *ed_rm_next; /* on rm list */ + struct list_head td_list; /* "shadow list" of our TDs */ /* create --> IDLE --> OPER --> ... --> IDLE --> destroy * usually: OPER --> UNLINK --> (IDLE | OPER) --> ... */ - u8 state; -#define ED_NEW 0x00 /* just allocated */ -#define ED_IDLE 0x01 /* linked into HC, but not running */ -#define ED_OPER 0x02 /* linked into HC and running */ -#define ED_UNLINK 0x03 /* being unlinked from HC */ + u8 state; /* ED_{IDLE,UNLINK,OPER} */ +#define ED_IDLE 0x00 /* NOT linked to HC */ +#define ED_UNLINK 0x01 /* being unlinked from hc */ +#define ED_OPER 0x02 /* IS linked to hc */ u8 type; /* PIPE_{BULK,...} */ @@ -122,10 +124,10 @@ struct td { #define TD_DP_SHIFT 21 /* direction/pid */ #define TD_DP_MASK 0x3 #define TD_DP (TD_DP_MASK << TD_DP_SHIFT) +#define TD_DP_GET (((x) >> TD_DP_SHIFT) & TD_DP_MASK) #define TD_DP_SETUP (0x0 << TD_DP_SHIFT) /* SETUP pid */ #define TD_DP_OUT (0x1 << TD_DP_SHIFT) /* OUT pid */ #define TD_DP_IN (0x2 << TD_DP_SHIFT) /* IN pid */ -#define TD_DP_GET(x) (((x) >> TD_DP_SHIFT) & TD_DP_MASK) #define TD_ISI_SHIFT 8 /* Interrupt Service Interval */ #define TD_ISI_MASK 0x3f #define TD_ISI_GET(x) (((x) >> TD_ISI_SHIFT) & TD_ISI_MASK) @@ -143,12 +145,19 @@ struct td { /* rest are purely for the driver's use */ __u8 index; -/* struct ed *ed;*/ + struct ed *ed; + struct td *td_hash; /* dma-->td hashtable */ + struct td *next_dl_td; struct urb *urb; dma_addr_t td_dma; /* addr of this TD */ dma_addr_t data_dma; /* addr of data it points to */ + struct list_head td_list; /* "shadow list", TDs on same ED */ + + u32 flags; +#define TD_FLAG_DONE (1 << 17) /* retired to done list */ +#define TD_FLAG_ISO (1 << 16) /* copy of ED_ISO */ } __attribute__ ((aligned(TD_ALIGN))); /* c/b/i need 16; only iso needs 32 */ /* @@ -263,6 +272,8 @@ struct admhcd_regs { */ #define ADMHC_INTR_SOFI (1 << 4) /* start of frame */ #define ADMHC_INTR_RESI (1 << 5) /* resume detected */ +#define ADMHC_INTR_6 (1 << 6) /* unknown */ +#define ADMHC_INTR_7 (1 << 7) /* unknown */ #define ADMHC_INTR_BABI (1 << 8) /* babble detected */ #define ADMHC_INTR_INSM (1 << 9) /* root hub status change */ #define ADMHC_INTR_SO (1 << 10) /* scheduling overrun */ @@ -348,7 +359,6 @@ struct admhcd_regs { /* hcd-private per-urb state */ struct urb_priv { struct ed *ed; - struct urb *urb; struct list_head pending; /* URBs on the same ED */ u32 td_cnt; /* # tds in this request */ @@ -379,10 +389,12 @@ struct admhcd { * hcd adds to schedule for a live hc any time, but removals finish * only at the start of the next frame. */ + struct ed *ed_head; struct ed *ed_tails[4]; struct ed *ed_rm_list; /* to be removed */ + struct ed *periodic[NUM_INTS]; /* shadow int_table */ #if 0 /* TODO: remove? */ @@ -399,6 +411,7 @@ struct admhcd { struct dma_pool *td_cache; struct dma_pool *ed_cache; struct td *td_hash[TD_HASH_SIZE]; + struct list_head pending; /* * driver state @@ -445,7 +458,7 @@ static inline struct usb_hcd *admhcd_to_hcd(const struct admhcd *ahcd) #define admhc_err(ahcd, fmt, args...) \ printk(KERN_ERR "adm5120-hcd: " fmt , ## args ) -#define ahcd_info(ahcd, fmt, args...) \ +#define admhc_info(ahcd, fmt, args...) \ printk(KERN_INFO "adm5120-hcd: " fmt , ## args ) #define admhc_warn(ahcd, fmt, args...) \ printk(KERN_WARNING "adm5120-hcd: " fmt , ## args ) @@ -550,6 +563,15 @@ static inline void admhc_writel(const struct admhcd *ahcd, #endif } +static inline void admhc_writel_flush(const struct admhcd *ahcd) +{ +#if 0 + /* TODO: remove? */ + (void) admhc_readl(ahcd, &ahcd->regs->gencontrol); +#endif +} + + /*-------------------------------------------------------------------------*/ /* cpu to ahcd */ @@ -636,18 +658,27 @@ static inline void admhc_disable(struct admhcd *ahcd) admhcd_to_hcd(ahcd)->state = HC_STATE_HALT; } -#define FI 0x2edf /* 12000 bits per frame (-1) */ -#define FSLDP(fi) (0x7fff & ((6 * ((fi) - 1200)) / 7)) -#define FIT ADMHC_SFI_FIT -#define LSTHRESH 0x628 /* lowspeed bit threshold */ +#define FI 0x2edf /* 12000 bits per frame (-1) */ +#define FSLDP(fi) (0x7fff & ((6 * ((fi) - 1200)) / 7)) +#define FIT ADMHC_SFI_FIT +#define LSTHRESH 0x628 /* lowspeed bit threshold */ static inline void periodic_reinit(struct admhcd *ahcd) { +#if 0 + u32 fi = ahcd->fminterval & ADMHC_SFI_FI_MASK; u32 fit = admhc_readl(ahcd, &ahcd->regs->fminterval) & FIT; /* TODO: adjust FSLargestDataPacket value too? */ admhc_writel(ahcd, (fit ^ FIT) | ahcd->fminterval, &ahcd->regs->fminterval); +#else + u32 fit = admhc_readl(ahcd, &ahcd->regs->fminterval) & FIT; + + /* TODO: adjust FSLargestDataPacket value too? */ + admhc_writel(ahcd, (fit ^ FIT) | ahcd->fminterval, + &ahcd->regs->fminterval); +#endif } static inline u32 admhc_read_rhdesc(struct admhcd *ahcd)