2 * Copyright (c) 2007-2008, Juniper Networks, Inc.
3 * Copyright (c) 2008, Michael Trimarchi <trimarchimichael@yahoo.it>
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation version 2 of
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 #if !defined(CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS)
26 #define CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS 2
29 /* (shifted) direction/type/recipient from the USB 2.0 spec, table 9.2 */
30 #define DeviceRequest \
31 ((USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE) << 8)
33 #define DeviceOutRequest \
34 ((USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE) << 8)
36 #define InterfaceRequest \
37 ((USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_INTERFACE) << 8)
39 #define EndpointRequest \
40 ((USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_INTERFACE) << 8)
42 #define EndpointOutRequest \
43 ((USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_INTERFACE) << 8)
50 #define HC_LENGTH(p) (((p) >> 0) & 0x00ff)
51 #define HC_VERSION(p) (((p) >> 16) & 0xffff)
52 uint32_t cr_hcsparams;
53 #define HCS_PPC(p) ((p) & (1 << 4))
54 #define HCS_INDICATOR(p) ((p) & (1 << 16)) /* Port indicators */
55 #define HCS_N_PORTS(p) (((p) >> 0) & 0xf)
56 uint32_t cr_hccparams;
57 uint8_t cr_hcsp_portrt[8];
58 } __attribute__ ((packed, aligned(4)));
62 #define CMD_PARK (1 << 11) /* enable "park" */
63 #define CMD_PARK_CNT(c) (((c) >> 8) & 3) /* how many transfers to park */
64 #define CMD_ASE (1 << 5) /* async schedule enable */
65 #define CMD_LRESET (1 << 7) /* partial reset */
66 #define CMD_IAAD (1 << 5) /* "doorbell" interrupt */
67 #define CMD_PSE (1 << 4) /* periodic schedule enable */
68 #define CMD_RESET (1 << 1) /* reset HC not bus */
69 #define CMD_RUN (1 << 0) /* start/stop HC */
71 #define STD_ASS (1 << 15)
72 #define STS_HALT (1 << 12)
74 #define INTR_UE (1 << 0) /* USB interrupt enable */
75 #define INTR_UEE (1 << 1) /* USB error interrupt enable */
76 #define INTR_PCE (1 << 2) /* Port change detect enable */
77 #define INTR_SEE (1 << 4) /* system error enable */
78 #define INTR_AAE (1 << 5) /* Interrupt on async adavance enable */
80 uint32_t or_ctrldssegment;
81 uint32_t or_periodiclistbase;
82 uint32_t or_asynclistaddr;
83 uint32_t _reserved_0_;
84 uint32_t or_burstsize;
85 uint32_t or_txfilltuning;
86 #define TXFIFO_THRESH(p) ((p & 0x3f) << 16)
87 uint32_t _reserved_1_[6];
88 uint32_t or_configflag;
89 #define FLAG_CF (1 << 0) /* true: we'll support "high speed" */
90 uint32_t or_portsc[CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS];
92 } __attribute__ ((packed, aligned(4)));
94 #define USBMODE 0x68 /* USB Device mode */
95 #define USBMODE_SDIS (1 << 3) /* Stream disable */
96 #define USBMODE_BE (1 << 2) /* BE/LE endiannes select */
97 #define USBMODE_CM_HC (3 << 0) /* host controller mode */
98 #define USBMODE_CM_IDLE (0 << 0) /* idle state */
100 /* Interface descriptor */
101 struct usb_linux_interface_descriptor {
102 unsigned char bLength;
103 unsigned char bDescriptorType;
104 unsigned char bInterfaceNumber;
105 unsigned char bAlternateSetting;
106 unsigned char bNumEndpoints;
107 unsigned char bInterfaceClass;
108 unsigned char bInterfaceSubClass;
109 unsigned char bInterfaceProtocol;
110 unsigned char iInterface;
111 } __attribute__ ((packed));
113 /* Configuration descriptor information.. */
114 struct usb_linux_config_descriptor {
115 unsigned char bLength;
116 unsigned char bDescriptorType;
117 unsigned short wTotalLength;
118 unsigned char bNumInterfaces;
119 unsigned char bConfigurationValue;
120 unsigned char iConfiguration;
121 unsigned char bmAttributes;
122 unsigned char MaxPower;
123 } __attribute__ ((packed));
125 #if defined CONFIG_EHCI_DESC_BIG_ENDIAN
126 #define ehci_readl(x) (*((volatile u32 *)(x)))
127 #define ehci_writel(a, b) (*((volatile u32 *)(a)) = ((volatile u32)b))
129 #define ehci_readl(x) cpu_to_le32((*((volatile u32 *)(x))))
130 #define ehci_writel(a, b) (*((volatile u32 *)(a)) = \
131 cpu_to_le32(((volatile u32)b)))
134 #if defined CONFIG_EHCI_MMIO_BIG_ENDIAN
135 #define hc32_to_cpu(x) be32_to_cpu((x))
136 #define cpu_to_hc32(x) cpu_to_be32((x))
138 #define hc32_to_cpu(x) le32_to_cpu((x))
139 #define cpu_to_hc32(x) cpu_to_le32((x))
142 #define EHCI_PS_WKOC_E (1 << 22) /* RW wake on over current */
143 #define EHCI_PS_WKDSCNNT_E (1 << 21) /* RW wake on disconnect */
144 #define EHCI_PS_WKCNNT_E (1 << 20) /* RW wake on connect */
145 #define EHCI_PS_PO (1 << 13) /* RW port owner */
146 #define EHCI_PS_PP (1 << 12) /* RW,RO port power */
147 #define EHCI_PS_LS (3 << 10) /* RO line status */
148 #define EHCI_PS_PR (1 << 8) /* RW port reset */
149 #define EHCI_PS_SUSP (1 << 7) /* RW suspend */
150 #define EHCI_PS_FPR (1 << 6) /* RW force port resume */
151 #define EHCI_PS_OCC (1 << 5) /* RWC over current change */
152 #define EHCI_PS_OCA (1 << 4) /* RO over current active */
153 #define EHCI_PS_PEC (1 << 3) /* RWC port enable change */
154 #define EHCI_PS_PE (1 << 2) /* RW port enable */
155 #define EHCI_PS_CSC (1 << 1) /* RWC connect status change */
156 #define EHCI_PS_CS (1 << 0) /* RO connect status */
157 #define EHCI_PS_CLEAR (EHCI_PS_OCC | EHCI_PS_PEC | EHCI_PS_CSC)
159 #define EHCI_PS_IS_LOWSPEED(x) (((x) & EHCI_PS_LS) == (1 << 10))
162 * Schedule Interface Space.
164 * IMPORTANT: Software must ensure that no interface data structure
165 * reachable by the EHCI host controller spans a 4K page boundary!
167 * Periodic transfers (i.e. isochronous and interrupt transfers) are
171 /* Queue Element Transfer Descriptor (qTD). */
173 /* this part defined by EHCI spec */
174 uint32_t qt_next; /* see EHCI 3.5.1 */
175 #define QT_NEXT_TERMINATE 1
176 uint32_t qt_altnext; /* see EHCI 3.5.2 */
177 uint32_t qt_token; /* see EHCI 3.5.3 */
178 uint32_t qt_buffer[5]; /* see EHCI 3.5.4 */
179 uint32_t qt_buffer_hi[5]; /* Appendix B */
180 /* pad struct for 32 byte alignment */
184 /* Queue Head (QH). */
187 #define QH_LINK_TERMINATE 1
188 #define QH_LINK_TYPE_ITD 0
189 #define QH_LINK_TYPE_QH 2
190 #define QH_LINK_TYPE_SITD 4
191 #define QH_LINK_TYPE_FSTN 6
195 struct qTD qh_overlay;
197 * Add dummy fill value to make the size of this struct
198 * aligned to 32 bytes
203 /* Low level init functions */
204 int ehci_hcd_init(void);
205 int ehci_hcd_stop(void);
207 #endif /* USB_EHCI_H */