mirror of
https://github.com/AsahiLinux/u-boot
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676ae068d9
Kill off ehci-core.h It was used to specify some static controller data. To support more than one controller being active at any time we have to carry the controller data ourselfes. Change the ehci interface accordingly. NOTE: OMAP implemented the ehci stuff a bit backwards and should be fixed to do the same thing as other platforms. But the change for now is at least compile clean. Signed-off-by: Lucas Stach <dev@lynxeye.de> Reviewed-by: Marek Vasut <marex@denx.de>
255 lines
9.3 KiB
C
255 lines
9.3 KiB
C
/*-
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* Copyright (c) 2007-2008, Juniper Networks, Inc.
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* Copyright (c) 2008, Michael Trimarchi <trimarchimichael@yahoo.it>
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2 of
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* the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#ifndef USB_EHCI_H
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#define USB_EHCI_H
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#if !defined(CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS)
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#define CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS 2
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#endif
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/* (shifted) direction/type/recipient from the USB 2.0 spec, table 9.2 */
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#define DeviceRequest \
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((USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE) << 8)
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#define DeviceOutRequest \
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((USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE) << 8)
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#define InterfaceRequest \
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((USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_INTERFACE) << 8)
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#define EndpointRequest \
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((USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_INTERFACE) << 8)
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#define EndpointOutRequest \
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((USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_INTERFACE) << 8)
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/*
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* Register Space.
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*/
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struct ehci_hccr {
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uint32_t cr_capbase;
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#define HC_LENGTH(p) (((p) >> 0) & 0x00ff)
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#define HC_VERSION(p) (((p) >> 16) & 0xffff)
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uint32_t cr_hcsparams;
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#define HCS_PPC(p) ((p) & (1 << 4))
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#define HCS_INDICATOR(p) ((p) & (1 << 16)) /* Port indicators */
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#define HCS_N_PORTS(p) (((p) >> 0) & 0xf)
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uint32_t cr_hccparams;
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uint8_t cr_hcsp_portrt[8];
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} __attribute__ ((packed, aligned(4)));
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struct ehci_hcor {
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uint32_t or_usbcmd;
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#define CMD_PARK (1 << 11) /* enable "park" */
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#define CMD_PARK_CNT(c) (((c) >> 8) & 3) /* how many transfers to park */
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#define CMD_ASE (1 << 5) /* async schedule enable */
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#define CMD_LRESET (1 << 7) /* partial reset */
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#define CMD_IAAD (1 << 5) /* "doorbell" interrupt */
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#define CMD_PSE (1 << 4) /* periodic schedule enable */
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#define CMD_RESET (1 << 1) /* reset HC not bus */
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#define CMD_RUN (1 << 0) /* start/stop HC */
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uint32_t or_usbsts;
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#define STS_ASS (1 << 15)
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#define STS_HALT (1 << 12)
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uint32_t or_usbintr;
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#define INTR_UE (1 << 0) /* USB interrupt enable */
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#define INTR_UEE (1 << 1) /* USB error interrupt enable */
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#define INTR_PCE (1 << 2) /* Port change detect enable */
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#define INTR_SEE (1 << 4) /* system error enable */
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#define INTR_AAE (1 << 5) /* Interrupt on async adavance enable */
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uint32_t or_frindex;
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uint32_t or_ctrldssegment;
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uint32_t or_periodiclistbase;
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uint32_t or_asynclistaddr;
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uint32_t _reserved_0_;
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uint32_t or_burstsize;
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uint32_t or_txfilltuning;
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#define TXFIFO_THRESH_MASK (0x3f << 16)
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#define TXFIFO_THRESH(p) ((p & 0x3f) << 16)
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uint32_t _reserved_1_[6];
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uint32_t or_configflag;
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#define FLAG_CF (1 << 0) /* true: we'll support "high speed" */
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uint32_t or_portsc[CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS];
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#define PORTSC_PSPD(x) (((x) >> 26) & 0x3)
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#define PORTSC_PSPD_FS 0x0
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#define PORTSC_PSPD_LS 0x1
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#define PORTSC_PSPD_HS 0x2
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uint32_t or_systune;
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} __attribute__ ((packed, aligned(4)));
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#define USBMODE 0x68 /* USB Device mode */
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#define USBMODE_SDIS (1 << 3) /* Stream disable */
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#define USBMODE_BE (1 << 2) /* BE/LE endiannes select */
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#define USBMODE_CM_HC (3 << 0) /* host controller mode */
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#define USBMODE_CM_IDLE (0 << 0) /* idle state */
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/* Interface descriptor */
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struct usb_linux_interface_descriptor {
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unsigned char bLength;
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unsigned char bDescriptorType;
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unsigned char bInterfaceNumber;
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unsigned char bAlternateSetting;
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unsigned char bNumEndpoints;
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unsigned char bInterfaceClass;
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unsigned char bInterfaceSubClass;
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unsigned char bInterfaceProtocol;
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unsigned char iInterface;
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} __attribute__ ((packed));
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/* Configuration descriptor information.. */
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struct usb_linux_config_descriptor {
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unsigned char bLength;
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unsigned char bDescriptorType;
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unsigned short wTotalLength;
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unsigned char bNumInterfaces;
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unsigned char bConfigurationValue;
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unsigned char iConfiguration;
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unsigned char bmAttributes;
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unsigned char MaxPower;
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} __attribute__ ((packed));
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#if defined CONFIG_EHCI_DESC_BIG_ENDIAN
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#define ehci_readl(x) (*((volatile u32 *)(x)))
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#define ehci_writel(a, b) (*((volatile u32 *)(a)) = ((volatile u32)b))
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#else
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#define ehci_readl(x) cpu_to_le32((*((volatile u32 *)(x))))
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#define ehci_writel(a, b) (*((volatile u32 *)(a)) = \
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cpu_to_le32(((volatile u32)b)))
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#endif
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#if defined CONFIG_EHCI_MMIO_BIG_ENDIAN
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#define hc32_to_cpu(x) be32_to_cpu((x))
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#define cpu_to_hc32(x) cpu_to_be32((x))
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#else
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#define hc32_to_cpu(x) le32_to_cpu((x))
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#define cpu_to_hc32(x) cpu_to_le32((x))
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#endif
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#define EHCI_PS_WKOC_E (1 << 22) /* RW wake on over current */
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#define EHCI_PS_WKDSCNNT_E (1 << 21) /* RW wake on disconnect */
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#define EHCI_PS_WKCNNT_E (1 << 20) /* RW wake on connect */
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#define EHCI_PS_PO (1 << 13) /* RW port owner */
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#define EHCI_PS_PP (1 << 12) /* RW,RO port power */
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#define EHCI_PS_LS (3 << 10) /* RO line status */
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#define EHCI_PS_PR (1 << 8) /* RW port reset */
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#define EHCI_PS_SUSP (1 << 7) /* RW suspend */
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#define EHCI_PS_FPR (1 << 6) /* RW force port resume */
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#define EHCI_PS_OCC (1 << 5) /* RWC over current change */
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#define EHCI_PS_OCA (1 << 4) /* RO over current active */
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#define EHCI_PS_PEC (1 << 3) /* RWC port enable change */
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#define EHCI_PS_PE (1 << 2) /* RW port enable */
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#define EHCI_PS_CSC (1 << 1) /* RWC connect status change */
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#define EHCI_PS_CS (1 << 0) /* RO connect status */
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#define EHCI_PS_CLEAR (EHCI_PS_OCC | EHCI_PS_PEC | EHCI_PS_CSC)
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#define EHCI_PS_IS_LOWSPEED(x) (((x) & EHCI_PS_LS) == (1 << 10))
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/*
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* Schedule Interface Space.
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*
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* IMPORTANT: Software must ensure that no interface data structure
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* reachable by the EHCI host controller spans a 4K page boundary!
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*
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* Periodic transfers (i.e. isochronous and interrupt transfers) are
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* not supported.
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*/
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/* Queue Element Transfer Descriptor (qTD). */
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struct qTD {
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/* this part defined by EHCI spec */
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uint32_t qt_next; /* see EHCI 3.5.1 */
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#define QT_NEXT_TERMINATE 1
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uint32_t qt_altnext; /* see EHCI 3.5.2 */
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uint32_t qt_token; /* see EHCI 3.5.3 */
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#define QT_TOKEN_DT(x) (((x) & 0x1) << 31) /* Data Toggle */
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#define QT_TOKEN_GET_DT(x) (((x) >> 31) & 0x1)
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#define QT_TOKEN_TOTALBYTES(x) (((x) & 0x7fff) << 16) /* Total Bytes to Transfer */
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#define QT_TOKEN_GET_TOTALBYTES(x) (((x) >> 16) & 0x7fff)
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#define QT_TOKEN_IOC(x) (((x) & 0x1) << 15) /* Interrupt On Complete */
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#define QT_TOKEN_CPAGE(x) (((x) & 0x7) << 12) /* Current Page */
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#define QT_TOKEN_CERR(x) (((x) & 0x3) << 10) /* Error Counter */
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#define QT_TOKEN_PID(x) (((x) & 0x3) << 8) /* PID Code */
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#define QT_TOKEN_PID_OUT 0x0
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#define QT_TOKEN_PID_IN 0x1
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#define QT_TOKEN_PID_SETUP 0x2
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#define QT_TOKEN_STATUS(x) (((x) & 0xff) << 0) /* Status */
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#define QT_TOKEN_GET_STATUS(x) (((x) >> 0) & 0xff)
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#define QT_TOKEN_STATUS_ACTIVE 0x80
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#define QT_TOKEN_STATUS_HALTED 0x40
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#define QT_TOKEN_STATUS_DATBUFERR 0x20
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#define QT_TOKEN_STATUS_BABBLEDET 0x10
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#define QT_TOKEN_STATUS_XACTERR 0x08
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#define QT_TOKEN_STATUS_MISSEDUFRAME 0x04
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#define QT_TOKEN_STATUS_SPLITXSTATE 0x02
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#define QT_TOKEN_STATUS_PERR 0x01
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#define QT_BUFFER_CNT 5
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uint32_t qt_buffer[QT_BUFFER_CNT]; /* see EHCI 3.5.4 */
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uint32_t qt_buffer_hi[QT_BUFFER_CNT]; /* Appendix B */
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/* pad struct for 32 byte alignment */
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uint32_t unused[3];
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};
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#define EHCI_PAGE_SIZE 4096
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/* Queue Head (QH). */
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struct QH {
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uint32_t qh_link;
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#define QH_LINK_TERMINATE 1
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#define QH_LINK_TYPE_ITD 0
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#define QH_LINK_TYPE_QH 2
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#define QH_LINK_TYPE_SITD 4
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#define QH_LINK_TYPE_FSTN 6
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uint32_t qh_endpt1;
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#define QH_ENDPT1_RL(x) (((x) & 0xf) << 28) /* NAK Count Reload */
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#define QH_ENDPT1_C(x) (((x) & 0x1) << 27) /* Control Endpoint Flag */
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#define QH_ENDPT1_MAXPKTLEN(x) (((x) & 0x7ff) << 16) /* Maximum Packet Length */
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#define QH_ENDPT1_H(x) (((x) & 0x1) << 15) /* Head of Reclamation List Flag */
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#define QH_ENDPT1_DTC(x) (((x) & 0x1) << 14) /* Data Toggle Control */
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#define QH_ENDPT1_DTC_IGNORE_QTD_TD 0x0
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#define QH_ENDPT1_DTC_DT_FROM_QTD 0x1
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#define QH_ENDPT1_EPS(x) (((x) & 0x3) << 12) /* Endpoint Speed */
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#define QH_ENDPT1_EPS_FS 0x0
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#define QH_ENDPT1_EPS_LS 0x1
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#define QH_ENDPT1_EPS_HS 0x2
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#define QH_ENDPT1_ENDPT(x) (((x) & 0xf) << 8) /* Endpoint Number */
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#define QH_ENDPT1_I(x) (((x) & 0x1) << 7) /* Inactivate on Next Transaction */
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#define QH_ENDPT1_DEVADDR(x) (((x) & 0x7f) << 0) /* Device Address */
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uint32_t qh_endpt2;
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#define QH_ENDPT2_MULT(x) (((x) & 0x3) << 30) /* High-Bandwidth Pipe Multiplier */
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#define QH_ENDPT2_PORTNUM(x) (((x) & 0x7f) << 23) /* Port Number */
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#define QH_ENDPT2_HUBADDR(x) (((x) & 0x7f) << 16) /* Hub Address */
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#define QH_ENDPT2_UFCMASK(x) (((x) & 0xff) << 8) /* Split Completion Mask */
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#define QH_ENDPT2_UFSMASK(x) (((x) & 0xff) << 0) /* Interrupt Schedule Mask */
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uint32_t qh_curtd;
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struct qTD qh_overlay;
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/*
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* Add dummy fill value to make the size of this struct
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* aligned to 32 bytes
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*/
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uint8_t fill[16];
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};
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/* Low level init functions */
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int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor);
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int ehci_hcd_stop(int index);
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#endif /* USB_EHCI_H */
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