2 * Copyright (c) 2001-2002 by David Brownell
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation; either version 2 of the License, or (at your
7 * option) any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
11 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software Foundation,
16 * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 #ifndef __LINUX_USB_EHCI_DEF_H
20 #define __LINUX_USB_EHCI_DEF_H
22 /* EHCI register interface, corresponds to EHCI Revision 0.95 specification */
24 /* Section 2.2 Host Controller Capability Registers */
26 /* these fields are specified as 8 and 16 bit registers,
27 * but some hosts can't perform 8 or 16 bit PCI accesses.
30 #define HC_LENGTH(p) (((p)>>00)&0x00ff) /* bits 7:0 */
31 #define HC_VERSION(p) (((p)>>16)&0xffff) /* bits 31:16 */
32 u32 hcs_params; /* HCSPARAMS - offset 0x4 */
33 #define HCS_DEBUG_PORT(p) (((p)>>20)&0xf) /* bits 23:20, debug port? */
34 #define HCS_INDICATOR(p) ((p)&(1 << 16)) /* true: has port indicators */
35 #define HCS_N_CC(p) (((p)>>12)&0xf) /* bits 15:12, #companion HCs */
36 #define HCS_N_PCC(p) (((p)>>8)&0xf) /* bits 11:8, ports per CC */
37 #define HCS_PORTROUTED(p) ((p)&(1 << 7)) /* true: port routing */
38 #define HCS_PPC(p) ((p)&(1 << 4)) /* true: port power control */
39 #define HCS_N_PORTS(p) (((p)>>0)&0xf) /* bits 3:0, ports on HC */
41 u32 hcc_params; /* HCCPARAMS - offset 0x8 */
42 #define HCC_EXT_CAPS(p) (((p)>>8)&0xff) /* for pci extended caps */
43 #define HCC_ISOC_CACHE(p) ((p)&(1 << 7)) /* true: can cache isoc frame */
44 #define HCC_ISOC_THRES(p) (((p)>>4)&0x7) /* bits 6:4, uframes cached */
45 #define HCC_CANPARK(p) ((p)&(1 << 2)) /* true: can park on async qh */
46 #define HCC_PGM_FRAMELISTLEN(p) ((p)&(1 << 1)) /* true: periodic_size changes*/
47 #define HCC_64BIT_ADDR(p) ((p)&(1)) /* true: can use 64-bit addr */
48 u8 portroute [8]; /* nibbles for routing - offset 0xC */
49 } __attribute__ ((packed));
52 /* Section 2.3 Host Controller Operational Registers */
55 /* USBCMD: offset 0x00 */
57 /* 23:16 is r/w intr rate, in microframes; default "8" == 1/msec */
58 #define CMD_PARK (1<<11) /* enable "park" on async qh */
59 #define CMD_PARK_CNT(c) (((c)>>8)&3) /* how many transfers to park for */
60 #define CMD_LRESET (1<<7) /* partial reset (no ports, etc) */
61 #define CMD_IAAD (1<<6) /* "doorbell" interrupt async advance */
62 #define CMD_ASE (1<<5) /* async schedule enable */
63 #define CMD_PSE (1<<4) /* periodic schedule enable */
64 /* 3:2 is periodic frame list size */
65 #define CMD_RESET (1<<1) /* reset HC not bus */
66 #define CMD_RUN (1<<0) /* start/stop HC */
68 /* USBSTS: offset 0x04 */
70 #define STS_ASS (1<<15) /* Async Schedule Status */
71 #define STS_PSS (1<<14) /* Periodic Schedule Status */
72 #define STS_RECL (1<<13) /* Reclamation */
73 #define STS_HALT (1<<12) /* Not running (any reason) */
74 /* some bits reserved */
75 /* these STS_* flags are also intr_enable bits (USBINTR) */
76 #define STS_IAA (1<<5) /* Interrupted on async advance */
77 #define STS_FATAL (1<<4) /* such as some PCI access errors */
78 #define STS_FLR (1<<3) /* frame list rolled over */
79 #define STS_PCD (1<<2) /* port change detect */
80 #define STS_ERR (1<<1) /* "error" completion (overflow, ...) */
81 #define STS_INT (1<<0) /* "normal" completion (short, ...) */
83 /* USBINTR: offset 0x08 */
86 /* FRINDEX: offset 0x0C */
87 u32 frame_index; /* current microframe number */
88 /* CTRLDSSEGMENT: offset 0x10 */
89 u32 segment; /* address bits 63:32 if needed */
90 /* PERIODICLISTBASE: offset 0x14 */
91 u32 frame_list; /* points to periodic list */
92 /* ASYNCLISTADDR: offset 0x18 */
93 u32 async_next; /* address of next async queue head */
97 /* CONFIGFLAG: offset 0x40 */
99 #define FLAG_CF (1<<0) /* true: we'll support "high speed" */
101 /* PORTSC: offset 0x44 */
102 u32 port_status [0]; /* up to N_PORTS */
104 #define PORT_WKOC_E (1<<22) /* wake on overcurrent (enable) */
105 #define PORT_WKDISC_E (1<<21) /* wake on disconnect (enable) */
106 #define PORT_WKCONN_E (1<<20) /* wake on connect (enable) */
107 /* 19:16 for port testing */
108 #define PORT_LED_OFF (0<<14)
109 #define PORT_LED_AMBER (1<<14)
110 #define PORT_LED_GREEN (2<<14)
111 #define PORT_LED_MASK (3<<14)
112 #define PORT_OWNER (1<<13) /* true: companion hc owns this port */
113 #define PORT_POWER (1<<12) /* true: has power (see PPC) */
114 #define PORT_USB11(x) (((x)&(3<<10)) == (1<<10)) /* USB 1.1 device */
115 /* 11:10 for detecting lowspeed devices (reset vs release ownership) */
117 #define PORT_RESET (1<<8) /* reset port */
118 #define PORT_SUSPEND (1<<7) /* suspend port */
119 #define PORT_RESUME (1<<6) /* resume it */
120 #define PORT_OCC (1<<5) /* over current change */
121 #define PORT_OC (1<<4) /* over current active */
122 #define PORT_PEC (1<<3) /* port enable change */
123 #define PORT_PE (1<<2) /* port enable */
124 #define PORT_CSC (1<<1) /* connect status change */
125 #define PORT_CONNECT (1<<0) /* device connected */
126 #define PORT_RWC_BITS (PORT_CSC | PORT_PEC | PORT_OCC)
127 } __attribute__ ((packed));
129 #define USBMODE 0x68 /* USB Device mode */
130 #define USBMODE_SDIS (1<<3) /* Stream disable */
131 #define USBMODE_BE (1<<2) /* BE/LE endianness select */
132 #define USBMODE_CM_HC (3<<0) /* host controller mode */
133 #define USBMODE_CM_IDLE (0<<0) /* idle state */
135 /* Appendix C, Debug port ... intended for use with special "debug devices"
136 * that can help if there's no serial console. (nonstandard enumeration.)
138 struct ehci_dbg_port {
140 #define DBGP_OWNER (1<<30)
141 #define DBGP_ENABLED (1<<28)
142 #define DBGP_DONE (1<<16)
143 #define DBGP_INUSE (1<<10)
144 #define DBGP_ERRCODE(x) (((x)>>7)&0x07)
145 # define DBGP_ERR_BAD 1
146 # define DBGP_ERR_SIGNAL 2
147 #define DBGP_ERROR (1<<6)
148 #define DBGP_GO (1<<5)
149 #define DBGP_OUT (1<<4)
150 #define DBGP_LEN(x) (((x)>>0)&0x0f)
152 #define DBGP_PID_GET(x) (((x)>>16)&0xff)
153 #define DBGP_PID_SET(data, tok) (((data)<<8)|(tok))
157 #define DBGP_EPADDR(dev, ep) (((dev)<<8)|(ep))
158 } __attribute__ ((packed));
160 #endif /* __LINUX_USB_EHCI_DEF_H */