[U-Boot] [PATCH v4 1/4] USB: move ehci.h and ehci-core.h into /include/usb/

Jana Rapava
2011-09-25T17:25:07Z

Signed-off-by: Jana Rapava <fermata7@gmail.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Remy Bohmer <linux@bohmer.net>
Cc: Fabio Estevam <festevam@gmail.com>
---
Changes for v2:
- changed to proper patch
Changes for v3:
- merged other USB patches from u-boot-pxa/efikasb
- offset-based access changed to struct-based access
- use {clrset,clr,set}bits_le32() calls
- CodingStyle and naming cleanup
Changes for v4:
- split into patchset
- move ehci.h and ehci-core.h into /include/usb/

drivers/usb/host/ehci-core.h | 29 ------
drivers/usb/host/ehci-fsl.c | 4 +-
drivers/usb/host/ehci-hcd.c | 2 +-
drivers/usb/host/ehci-kirkwood.c | 4 +-
drivers/usb/host/ehci-mpc512x.c | 4 +-
drivers/usb/host/ehci-pci.c | 4 +-
drivers/usb/host/ehci-ppc4xx.c | 4 +-
drivers/usb/host/ehci.h | 203 --------------------------------------
include/usb/ehci-core.h | 29 ++++++
include/usb/ehci.h | 203 ++++++++++++++++++++++++++++++++++++++
10 files changed, 243 insertions(+), 243 deletions(-)
delete mode 100644 drivers/usb/host/ehci-core.h
delete mode 100644 drivers/usb/host/ehci.h
create mode 100644 include/usb/ehci-core.h
create mode 100644 include/usb/ehci.h

diff --git a/drivers/usb/host/ehci-core.h b/drivers/usb/host/ehci-core.h
deleted file mode 100644
index 39e5c5e..0000000
--- a/drivers/usb/host/ehci-core.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*-
- * Copyright (c) 2007-2008, Juniper Networks, Inc.
- * Copyright (c) 2008, Excito Elektronik i Sk?ne AB
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#ifndef USB_EHCI_CORE_H
-#define USB_EHCI_CORE_H
-
-extern int rootdev;
-extern struct ehci_hccr *hccr;
-extern volatile struct ehci_hcor *hcor;
-
-#endif
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index 6e0043a..19b97ee 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -27,8 +27,8 @@
#include <asm/io.h>
#include <usb/ehci-fsl.h>

-#include "ehci.h"
-#include "ehci-core.h"
+#include <usb/ehci.h>
+#include <usb/ehci-core.h>

/*
* Create the appropriate control structures to manage
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 2197119..bdadd46 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -27,7 +27,7 @@
#include <malloc.h>
#include <watchdog.h>

-#include "ehci.h"
+#include <usb/ehci.h>

int rootdev;
struct ehci_hccr *hccr; /* R/O registers, not need for volatile */
diff --git a/drivers/usb/host/ehci-kirkwood.c b/drivers/usb/host/ehci-kirkwood.c
index 5570fc6..ab75acd 100644
--- a/drivers/usb/host/ehci-kirkwood.c
+++ b/drivers/usb/host/ehci-kirkwood.c
@@ -25,8 +25,8 @@
#include <common.h>
#include <asm/io.h>
#include <usb.h>
-#include "ehci.h"
-#include "ehci-core.h"
+#include <usb/ehci.h>
+#include <usb/ehci-core.h>
#include <asm/arch/kirkwood.h>

#define rdl(off) readl(KW_USB20_BASE + (off))
diff --git a/drivers/usb/host/ehci-mpc512x.c b/drivers/usb/host/ehci-mpc512x.c
index d360108..8d2c93b 100644
--- a/drivers/usb/host/ehci-mpc512x.c
+++ b/drivers/usb/host/ehci-mpc512x.c
@@ -32,8 +32,8 @@
#include <asm/io.h>
#include <usb/ehci-fsl.h>

-#include "ehci.h"
-#include "ehci-core.h"
+#include <usb/ehci.h>
+#include <usb/ehci-core.h>

static void fsl_setup_phy(volatile struct ehci_hcor *);
static void fsl_platform_set_host_mode(volatile struct usb_ehci *ehci);
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 020ab11..e1f84d9 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -22,8 +22,8 @@
#include <pci.h>
#include <usb.h>

-#include "ehci.h"
-#include "ehci-core.h"
+#include <usb/ehci.h>
+#include <usb/ehci-core.h>

#ifdef CONFIG_PCI_EHCI_DEVICE
static struct pci_device_id ehci_pci_ids[] = {
diff --git a/drivers/usb/host/ehci-ppc4xx.c b/drivers/usb/host/ehci-ppc4xx.c
index 1179919..1a1fae1 100644
--- a/drivers/usb/host/ehci-ppc4xx.c
+++ b/drivers/usb/host/ehci-ppc4xx.c
@@ -22,8 +22,8 @@
#include <common.h>
#include <usb.h>

-#include "ehci.h"
-#include "ehci-core.h"
+#include <usb/ehci.h>
+#include <usb/ehci-core.h>

/*
* Create the appropriate control structures to manage
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
deleted file mode 100644
index 3d0ad0c..0000000
--- a/drivers/usb/host/ehci.h
+++ /dev/null
@@ -1,203 +0,0 @@
-/*-
- * Copyright (c) 2007-2008, Juniper Networks, Inc.
- * Copyright (c) 2008, Michael Trimarchi <trimarchimichael@yahoo.it>
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#ifndef USB_EHCI_H
-#define USB_EHCI_H
-
-#if !defined(CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS)
-#define CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS 2
-#endif
-
-/* (shifted) direction/type/recipient from the USB 2.0 spec, table 9.2 */
-#define DeviceRequest \
- ((USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE) << 8)
-
-#define DeviceOutRequest \
- ((USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE) << 8)
-
-#define InterfaceRequest \
- ((USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_INTERFACE) << 8)
-
-#define EndpointRequest \
- ((USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_INTERFACE) << 8)
-
-#define EndpointOutRequest \
- ((USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_INTERFACE) << 8)
-
-/*
- * Register Space.
- */
-struct ehci_hccr {
- uint32_t cr_capbase;
-#define HC_LENGTH(p) (((p) >> 0) & 0x00ff)
-#define HC_VERSION(p) (((p) >> 16) & 0xffff)
- uint32_t cr_hcsparams;
-#define HCS_PPC(p) ((p) & (1 << 4))
-#define HCS_INDICATOR(p) ((p) & (1 << 16)) /* Port indicators */
-#define HCS_N_PORTS(p) (((p) >> 0) & 0xf)
- uint32_t cr_hccparams;
- uint8_t cr_hcsp_portrt[8];
-} __attribute__ ((packed, aligned(4)));
-
-struct ehci_hcor {
- uint32_t or_usbcmd;
-#define CMD_PARK (1 << 11) /* enable "park" */
-#define CMD_PARK_CNT(c) (((c) >> 8) & 3) /* how many transfers to park */
-#define CMD_ASE (1 << 5) /* async schedule enable */
-#define CMD_LRESET (1 << 7) /* partial reset */
-#define CMD_IAAD (1 << 5) /* "doorbell" interrupt */
-#define CMD_PSE (1 << 4) /* periodic schedule enable */
-#define CMD_RESET (1 << 1) /* reset HC not bus */
-#define CMD_RUN (1 << 0) /* start/stop HC */
- uint32_t or_usbsts;
-#define STD_ASS (1 << 15)
-#define STS_HALT (1 << 12)
- uint32_t or_usbintr;
-#define INTR_UE (1 << 0) /* USB interrupt enable */
-#define INTR_UEE (1 << 1) /* USB error interrupt enable */
-#define INTR_PCE (1 << 2) /* Port change detect enable */
-#define INTR_SEE (1 << 4) /* system error enable */
-#define INTR_AAE (1 << 5) /* Interrupt on async adavance enable */
- uint32_t or_frindex;
- uint32_t or_ctrldssegment;
- uint32_t or_periodiclistbase;
- uint32_t or_asynclistaddr;
- uint32_t _reserved_[9];
- uint32_t or_configflag;
-#define FLAG_CF (1 << 0) /* true: we'll support "high speed" */
- uint32_t or_portsc[CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS];
- uint32_t or_systune;
-} __attribute__ ((packed, aligned(4)));
-
-#define USBMODE 0x68 /* USB Device mode */
-#define USBMODE_SDIS (1 << 3) /* Stream disable */
-#define USBMODE_BE (1 << 2) /* BE/LE endiannes select */
-#define USBMODE_CM_HC (3 << 0) /* host controller mode */
-#define USBMODE_CM_IDLE (0 << 0) /* idle state */
-
-/* Interface descriptor */
-struct usb_linux_interface_descriptor {
- unsigned char bLength;
- unsigned char bDescriptorType;
- unsigned char bInterfaceNumber;
- unsigned char bAlternateSetting;
- unsigned char bNumEndpoints;
- unsigned char bInterfaceClass;
- unsigned char bInterfaceSubClass;
- unsigned char bInterfaceProtocol;
- unsigned char iInterface;
-} __attribute__ ((packed));
-
-/* Configuration descriptor information.. */
-struct usb_linux_config_descriptor {
- unsigned char bLength;
- unsigned char bDescriptorType;
- unsigned short wTotalLength;
- unsigned char bNumInterfaces;
- unsigned char bConfigurationValue;
- unsigned char iConfiguration;
- unsigned char bmAttributes;
- unsigned char MaxPower;
-} __attribute__ ((packed));
-
-#if defined CONFIG_EHCI_DESC_BIG_ENDIAN
-#define ehci_readl(x) (*((volatile u32 *)(x)))
-#define ehci_writel(a, b) (*((volatile u32 *)(a)) = ((volatile u32)b))
-#else
-#define ehci_readl(x) cpu_to_le32((*((volatile u32 *)(x))))
-#define ehci_writel(a, b) (*((volatile u32 *)(a)) = \
- cpu_to_le32(((volatile u32)b)))
-#endif
-
-#if defined CONFIG_EHCI_MMIO_BIG_ENDIAN
-#define hc32_to_cpu(x) be32_to_cpu((x))
-#define cpu_to_hc32(x) cpu_to_be32((x))
-#else
-#define hc32_to_cpu(x) le32_to_cpu((x))
-#define cpu_to_hc32(x) cpu_to_le32((x))
-#endif
-
-#define EHCI_PS_WKOC_E (1 << 22) /* RW wake on over current */
-#define EHCI_PS_WKDSCNNT_E (1 << 21) /* RW wake on disconnect */
-#define EHCI_PS_WKCNNT_E (1 << 20) /* RW wake on connect */
-#define EHCI_PS_PO (1 << 13) /* RW port owner */
-#define EHCI_PS_PP (1 << 12) /* RW,RO port power */
-#define EHCI_PS_LS (3 << 10) /* RO line status */
-#define EHCI_PS_PR (1 << 8) /* RW port reset */
-#define EHCI_PS_SUSP (1 << 7) /* RW suspend */
-#define EHCI_PS_FPR (1 << 6) /* RW force port resume */
-#define EHCI_PS_OCC (1 << 5) /* RWC over current change */
-#define EHCI_PS_OCA (1 << 4) /* RO over current active */
-#define EHCI_PS_PEC (1 << 3) /* RWC port enable change */
-#define EHCI_PS_PE (1 << 2) /* RW port enable */
-#define EHCI_PS_CSC (1 << 1) /* RWC connect status change */
-#define EHCI_PS_CS (1 << 0) /* RO connect status */
-#define EHCI_PS_CLEAR (EHCI_PS_OCC | EHCI_PS_PEC | EHCI_PS_CSC)
-
-#define EHCI_PS_IS_LOWSPEED(x) (((x) & EHCI_PS_LS) == (1 << 10))
-
-/*
- * Schedule Interface Space.
- *
- * IMPORTANT: Software must ensure that no interface data structure
- * reachable by the EHCI host controller spans a 4K page boundary!
- *
- * Periodic transfers (i.e. isochronous and interrupt transfers) are
- * not supported.
- */
-
-/* Queue Element Transfer Descriptor (qTD). */
-struct qTD {
- /* this part defined by EHCI spec */
- uint32_t qt_next; /* see EHCI 3.5.1 */
-#define QT_NEXT_TERMINATE 1
- uint32_t qt_altnext; /* see EHCI 3.5.2 */
- uint32_t qt_token; /* see EHCI 3.5.3 */
- uint32_t qt_buffer[5]; /* see EHCI 3.5.4 */
- uint32_t qt_buffer_hi[5]; /* Appendix B */
- /* pad struct for 32 byte alignment */
- uint32_t unused[3];
-};
-
-/* Queue Head (QH). */
-struct QH {
- uint32_t qh_link;
-#define QH_LINK_TERMINATE 1
-#define QH_LINK_TYPE_ITD 0
-#define QH_LINK_TYPE_QH 2
-#define QH_LINK_TYPE_SITD 4
-#define QH_LINK_TYPE_FSTN 6
- uint32_t qh_endpt1;
- uint32_t qh_endpt2;
- uint32_t qh_curtd;
- struct qTD qh_overlay;
- /*
- * Add dummy fill value to make the size of this struct
- * aligned to 32 bytes
- */
- uint8_t fill[16];
-};
-
-/* Low level init functions */
-int ehci_hcd_init(void);
-int ehci_hcd_stop(void);
-
-#endif /* USB_EHCI_H */
diff --git a/include/usb/ehci-core.h b/include/usb/ehci-core.h
new file mode 100644
index 0000000..17b6854
--- /dev/null
+++ b/include/usb/ehci-core.h
@@ -0,0 +1,29 @@
+/*-
+ * Copyright (c) 2007-2008, Juniper Networks, Inc.
+ * Copyright (c) 2008, Excito Elektronik i Skane AB
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef USB_EHCI_CORE_H
+#define USB_EHCI_CORE_H
+
+extern int rootdev;
+extern struct ehci_hccr *hccr;
+extern volatile struct ehci_hcor *hcor;
+
+#endif
diff --git a/include/usb/ehci.h b/include/usb/ehci.h
new file mode 100644
index 0000000..3d0ad0c
--- /dev/null
+++ b/include/usb/ehci.h
@@ -0,0 +1,203 @@
+/*-
+ * Copyright (c) 2007-2008, Juniper Networks, Inc.
+ * Copyright (c) 2008, Michael Trimarchi <trimarchimichael@yahoo.it>
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef USB_EHCI_H
+#define USB_EHCI_H
+
+#if !defined(CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS)
+#define CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS 2
+#endif
+
+/* (shifted) direction/type/recipient from the USB 2.0 spec, table 9.2 */
+#define DeviceRequest \
+ ((USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE) << 8)
+
+#define DeviceOutRequest \
+ ((USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE) << 8)
+
+#define InterfaceRequest \
+ ((USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_INTERFACE) << 8)
+
+#define EndpointRequest \
+ ((USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_INTERFACE) << 8)
+
+#define EndpointOutRequest \
+ ((USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_INTERFACE) << 8)
+
+/*
+ * Register Space.
+ */
+struct ehci_hccr {
+ uint32_t cr_capbase;
+#define HC_LENGTH(p) (((p) >> 0) & 0x00ff)
+#define HC_VERSION(p) (((p) >> 16) & 0xffff)
+ uint32_t cr_hcsparams;
+#define HCS_PPC(p) ((p) & (1 << 4))
+#define HCS_INDICATOR(p) ((p) & (1 << 16)) /* Port indicators */
+#define HCS_N_PORTS(p) (((p) >> 0) & 0xf)
+ uint32_t cr_hccparams;
+ uint8_t cr_hcsp_portrt[8];
+} __attribute__ ((packed, aligned(4)));
+
+struct ehci_hcor {
+ uint32_t or_usbcmd;
+#define CMD_PARK (1 << 11) /* enable "park" */
+#define CMD_PARK_CNT(c) (((c) >> 8) & 3) /* how many transfers to park */
+#define CMD_ASE (1 << 5) /* async schedule enable */
+#define CMD_LRESET (1 << 7) /* partial reset */
+#define CMD_IAAD (1 << 5) /* "doorbell" interrupt */
+#define CMD_PSE (1 << 4) /* periodic schedule enable */
+#define CMD_RESET (1 << 1) /* reset HC not bus */
+#define CMD_RUN (1 << 0) /* start/stop HC */
+ uint32_t or_usbsts;
+#define STD_ASS (1 << 15)
+#define STS_HALT (1 << 12)
+ uint32_t or_usbintr;
+#define INTR_UE (1 << 0) /* USB interrupt enable */
+#define INTR_UEE (1 << 1) /* USB error interrupt enable */
+#define INTR_PCE (1 << 2) /* Port change detect enable */
+#define INTR_SEE (1 << 4) /* system error enable */
+#define INTR_AAE (1 << 5) /* Interrupt on async adavance enable */
+ uint32_t or_frindex;
+ uint32_t or_ctrldssegment;
+ uint32_t or_periodiclistbase;
+ uint32_t or_asynclistaddr;
+ uint32_t _reserved_[9];
+ uint32_t or_configflag;
+#define FLAG_CF (1 << 0) /* true: we'll support "high speed" */
+ uint32_t or_portsc[CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS];
+ uint32_t or_systune;
+} __attribute__ ((packed, aligned(4)));
+
+#define USBMODE 0x68 /* USB Device mode */
+#define USBMODE_SDIS (1 << 3) /* Stream disable */
+#define USBMODE_BE (1 << 2) /* BE/LE endiannes select */
+#define USBMODE_CM_HC (3 << 0) /* host controller mode */
+#define USBMODE_CM_IDLE (0 << 0) /* idle state */
+
+/* Interface descriptor */
+struct usb_linux_interface_descriptor {
+ unsigned char bLength;
+ unsigned char bDescriptorType;
+ unsigned char bInterfaceNumber;
+ unsigned char bAlternateSetting;
+ unsigned char bNumEndpoints;
+ unsigned char bInterfaceClass;
+ unsigned char bInterfaceSubClass;
+ unsigned char bInterfaceProtocol;
+ unsigned char iInterface;
+} __attribute__ ((packed));
+
+/* Configuration descriptor information.. */
+struct usb_linux_config_descriptor {
+ unsigned char bLength;
+ unsigned char bDescriptorType;
+ unsigned short wTotalLength;
+ unsigned char bNumInterfaces;
+ unsigned char bConfigurationValue;
+ unsigned char iConfiguration;
+ unsigned char bmAttributes;
+ unsigned char MaxPower;
+} __attribute__ ((packed));
+
+#if defined CONFIG_EHCI_DESC_BIG_ENDIAN
+#define ehci_readl(x) (*((volatile u32 *)(x)))
+#define ehci_writel(a, b) (*((volatile u32 *)(a)) = ((volatile u32)b))
+#else
+#define ehci_readl(x) cpu_to_le32((*((volatile u32 *)(x))))
+#define ehci_writel(a, b) (*((volatile u32 *)(a)) = \
+ cpu_to_le32(((volatile u32)b)))
+#endif
+
+#if defined CONFIG_EHCI_MMIO_BIG_ENDIAN
+#define hc32_to_cpu(x) be32_to_cpu((x))
+#define cpu_to_hc32(x) cpu_to_be32((x))
+#else
+#define hc32_to_cpu(x) le32_to_cpu((x))
+#define cpu_to_hc32(x) cpu_to_le32((x))
+#endif
+
+#define EHCI_PS_WKOC_E (1 << 22) /* RW wake on over current */
+#define EHCI_PS_WKDSCNNT_E (1 << 21) /* RW wake on disconnect */
+#define EHCI_PS_WKCNNT_E (1 << 20) /* RW wake on connect */
+#define EHCI_PS_PO (1 << 13) /* RW port owner */
+#define EHCI_PS_PP (1 << 12) /* RW,RO port power */
+#define EHCI_PS_LS (3 << 10) /* RO line status */
+#define EHCI_PS_PR (1 << 8) /* RW port reset */
+#define EHCI_PS_SUSP (1 << 7) /* RW suspend */
+#define EHCI_PS_FPR (1 << 6) /* RW force port resume */
+#define EHCI_PS_OCC (1 << 5) /* RWC over current change */
+#define EHCI_PS_OCA (1 << 4) /* RO over current active */
+#define EHCI_PS_PEC (1 << 3) /* RWC port enable change */
+#define EHCI_PS_PE (1 << 2) /* RW port enable */
+#define EHCI_PS_CSC (1 << 1) /* RWC connect status change */
+#define EHCI_PS_CS (1 << 0) /* RO connect status */
+#define EHCI_PS_CLEAR (EHCI_PS_OCC | EHCI_PS_PEC | EHCI_PS_CSC)
+
+#define EHCI_PS_IS_LOWSPEED(x) (((x) & EHCI_PS_LS) == (1 << 10))
+
+/*
+ * Schedule Interface Space.
+ *
+ * IMPORTANT: Software must ensure that no interface data structure
+ * reachable by the EHCI host controller spans a 4K page boundary!
+ *
+ * Periodic transfers (i.e. isochronous and interrupt transfers) are
+ * not supported.
+ */
+
+/* Queue Element Transfer Descriptor (qTD). */
+struct qTD {
+ /* this part defined by EHCI spec */
+ uint32_t qt_next; /* see EHCI 3.5.1 */
+#define QT_NEXT_TERMINATE 1
+ uint32_t qt_altnext; /* see EHCI 3.5.2 */
+ uint32_t qt_token; /* see EHCI 3.5.3 */
+ uint32_t qt_buffer[5]; /* see EHCI 3.5.4 */
+ uint32_t qt_buffer_hi[5]; /* Appendix B */
+ /* pad struct for 32 byte alignment */
+ uint32_t unused[3];
+};
+
+/* Queue Head (QH). */
+struct QH {
+ uint32_t qh_link;
+#define QH_LINK_TERMINATE 1
+#define QH_LINK_TYPE_ITD 0
+#define QH_LINK_TYPE_QH 2
+#define QH_LINK_TYPE_SITD 4
+#define QH_LINK_TYPE_FSTN 6
+ uint32_t qh_endpt1;
+ uint32_t qh_endpt2;
+ uint32_t qh_curtd;
+ struct qTD qh_overlay;
+ /*
+ * Add dummy fill value to make the size of this struct
+ * aligned to 32 bytes
+ */
+ uint8_t fill[16];
+};
+
+/* Low level init functions */
+int ehci_hcd_init(void);
+int ehci_hcd_stop(void);
+
+#endif /* USB_EHCI_H */
--
1.7.6.3