USB: r8a66597-hcd: host controller driver for R8A66597
I would like to submit Renesas R8A66597 USB HCD driver.
R8A66597 is Renesas USB 2.0 host and peripheral combined
controller device originally designed for embedded products.
As a limitation of this device, it does not support externel
hub more than 2 tier, and cannot communicate with a USB
device more than 10. Then this device is not compatible with
EHCI and/or OHCI, I wrote driver support patch based on
sl811 code.
This driver has the following unique specifications:
- Implement transfer timeout to share one pipe with plural endpoint.
- Detach detection of a USB device connected to externel hub.
The driver has been tested external hub, usb-hdd, usb-cdrom,
usb-speaker, mice, keyboard, and usbtest driver.
Signed-off-by : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile
index 72464b5..b33aae5 100644
--- a/drivers/usb/Makefile
+++ b/drivers/usb/Makefile
@@ -16,6 +16,7 @@
obj-$(CONFIG_USB_SL811_HCD) += host/
obj-$(CONFIG_USB_U132_HCD) += host/
obj-$(CONFIG_USB_OHCI_AT91) += host/
+obj-$(CONFIG_USB_R8A66597_HCD) += host/
obj-$(CONFIG_USB_ACM) += class/
obj-$(CONFIG_USB_PRINTER) += class/
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index a8faff6..f0fbe4a 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -229,3 +229,15 @@
To compile this driver as a module, choose M here: the
module will be called "sl811_cs".
+config USB_R8A66597_HCD
+ tristate "R8A66597 HCD suppoort"
+ depends on USB
+ help
+ The R8A66597 is a USB 2.0 host and peripheral controller.
+
+ Enable this option if your board has this chip, and you want
+ to use it as a host controller. If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called r8a66597-hcd.
+
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 2ff396bd..bb8e9d4 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -15,3 +15,5 @@
obj-$(CONFIG_USB_SL811_HCD) += sl811-hcd.o
obj-$(CONFIG_USB_SL811_CS) += sl811_cs.o
obj-$(CONFIG_USB_U132_HCD) += u132-hcd.o
+obj-$(CONFIG_USB_R8A66597_HCD) += r8a66597-hcd.o
+
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
new file mode 100644
index 0000000..af13f1f
--- /dev/null
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -0,0 +1,2241 @@
+/*
+ * R8A66597 HCD (Host Controller Driver)
+ *
+ * Copyright (C) 2006-2007 Renesas Solutions Corp.
+ * Portions Copyright (C) 2004 Psion Teklogix (for NetBook PRO)
+ * Portions Copyright (C) 2004-2005 David Brownell
+ * Portions Copyright (C) 1999 Roman Weissgaerber
+ *
+ * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/smp_lock.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/timer.h>
+#include <linux/delay.h>
+#include <linux/list.h>
+#include <linux/interrupt.h>
+#include <linux/usb.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/system.h>
+
+#include "../core/hcd.h"
+#include "r8a66597.h"
+
+MODULE_DESCRIPTION("R8A66597 USB Host Controller Driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Yoshihiro Shimoda");
+
+#define DRIVER_VERSION "9 May 2007"
+
+static const char hcd_name[] = "r8a66597_hcd";
+
+/* module parameters */
+static unsigned short clock = XTAL12;
+module_param(clock, ushort, 0644);
+MODULE_PARM_DESC(clock, "input clock: 48MHz=32768, 24MHz=16384, 12MHz=0(default=0)");
+static unsigned short vif = LDRV;
+module_param(vif, ushort, 0644);
+MODULE_PARM_DESC(vif, "input VIF: 3.3V=32768, 1.5V=0(default=32768)");
+static unsigned short endian = 0;
+module_param(endian, ushort, 0644);
+MODULE_PARM_DESC(endian, "data endian: big=256, little=0(default=0)");
+static unsigned short irq_sense = INTL;
+module_param(irq_sense, ushort, 0644);
+MODULE_PARM_DESC(irq_sense, "IRQ sense: low level=32, falling edge=0(default=32)");
+
+static void packet_write(struct r8a66597 *r8a66597, u16 pipenum);
+static int r8a66597_get_frame(struct usb_hcd *hcd);
+
+/* this function must be called with interrupt disabled */
+static void enable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum,
+ unsigned long reg)
+{
+ u16 tmp;
+
+ tmp = r8a66597_read(r8a66597, INTENB0);
+ r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0);
+ r8a66597_bset(r8a66597, 1 << pipenum, reg);
+ r8a66597_write(r8a66597, tmp, INTENB0);
+}
+
+/* this function must be called with interrupt disabled */
+static void disable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum,
+ unsigned long reg)
+{
+ u16 tmp;
+
+ tmp = r8a66597_read(r8a66597, INTENB0);
+ r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0);
+ r8a66597_bclr(r8a66597, 1 << pipenum, reg);
+ r8a66597_write(r8a66597, tmp, INTENB0);
+}
+
+static void set_devadd_reg(struct r8a66597 *r8a66597, u8 r8a66597_address,
+ u16 usbspd, u8 upphub, u8 hubport, int port)
+{
+ u16 val;
+ unsigned long devadd_reg = get_devadd_addr(r8a66597_address);
+
+ val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001);
+ r8a66597_write(r8a66597, val, devadd_reg);
+}
+
+static int enable_controller(struct r8a66597 *r8a66597)
+{
+ u16 tmp;
+ int i = 0;
+
+ do {
+ r8a66597_write(r8a66597, USBE, SYSCFG0);
+ tmp = r8a66597_read(r8a66597, SYSCFG0);
+ if (i++ > 1000) {
+ err("register access fail.");
+ return -ENXIO;
+ }
+ } while ((tmp & USBE) != USBE);
+ r8a66597_bclr(r8a66597, USBE, SYSCFG0);
+ r8a66597_mdfy(r8a66597, clock, XTAL, SYSCFG0);
+
+ i = 0;
+ r8a66597_bset(r8a66597, XCKE, SYSCFG0);
+ do {
+ msleep(1);
+ tmp = r8a66597_read(r8a66597, SYSCFG0);
+ if (i++ > 500) {
+ err("register access fail.");
+ return -ENXIO;
+ }
+ } while ((tmp & SCKE) != SCKE);
+
+ r8a66597_bset(r8a66597, DCFM | DRPD, SYSCFG0);
+ r8a66597_bset(r8a66597, DRPD, SYSCFG1);
+
+ r8a66597_bset(r8a66597, vif & LDRV, PINCFG);
+ r8a66597_bset(r8a66597, HSE, SYSCFG0);
+ r8a66597_bset(r8a66597, HSE, SYSCFG1);
+ r8a66597_bset(r8a66597, USBE, SYSCFG0);
+
+ r8a66597_bset(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0);
+ r8a66597_bset(r8a66597, irq_sense & INTL, SOFCFG);
+ r8a66597_bset(r8a66597, BRDY0, BRDYENB);
+ r8a66597_bset(r8a66597, BEMP0, BEMPENB);
+
+ r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, DMA0CFG);
+ r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, DMA1CFG);
+
+ r8a66597_bset(r8a66597, endian & BIGEND, CFIFOSEL);
+ r8a66597_bset(r8a66597, endian & BIGEND, D0FIFOSEL);
+ r8a66597_bset(r8a66597, endian & BIGEND, D1FIFOSEL);
+
+ r8a66597_bset(r8a66597, TRNENSEL, SOFCFG);
+
+ r8a66597_bset(r8a66597, SIGNE | SACKE, INTENB1);
+ r8a66597_bclr(r8a66597, DTCHE, INTENB1);
+ r8a66597_bset(r8a66597, ATTCHE, INTENB1);
+ r8a66597_bclr(r8a66597, DTCHE, INTENB2);
+ r8a66597_bset(r8a66597, ATTCHE, INTENB2);
+
+ return 0;
+}
+
+static void disable_controller(struct r8a66597 *r8a66597)
+{
+ u16 tmp;
+
+ r8a66597_write(r8a66597, 0, INTENB0);
+ r8a66597_write(r8a66597, 0, INTENB1);
+ r8a66597_write(r8a66597, 0, INTENB2);
+ r8a66597_write(r8a66597, 0, INTSTS0);
+ r8a66597_write(r8a66597, 0, INTSTS1);
+ r8a66597_write(r8a66597, 0, INTSTS2);
+
+ r8a66597_port_power(r8a66597, 0, 0);
+ r8a66597_port_power(r8a66597, 1, 0);
+
+ do {
+ tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS;
+ udelay(640);
+ } while (tmp == EDGESTS);
+
+ r8a66597_bclr(r8a66597, DCFM | DRPD, SYSCFG0);
+ r8a66597_bclr(r8a66597, DRPD, SYSCFG1);
+ r8a66597_bclr(r8a66597, HSE, SYSCFG0);
+ r8a66597_bclr(r8a66597, HSE, SYSCFG1);
+
+ r8a66597_bclr(r8a66597, SCKE, SYSCFG0);
+ udelay(1);
+ r8a66597_bclr(r8a66597, PLLC, SYSCFG0);
+ r8a66597_bclr(r8a66597, XCKE, SYSCFG0);
+ r8a66597_bclr(r8a66597, USBE, SYSCFG0);
+}
+
+static int get_parent_r8a66597_address(struct r8a66597 *r8a66597,
+ struct usb_device *udev)
+{
+ struct r8a66597_device *dev;
+
+ if (udev->parent && udev->parent->devnum != 1)
+ udev = udev->parent;
+
+ dev = dev_get_drvdata(&udev->dev);
+ if (dev)
+ return dev->address;
+ else
+ return 0;
+}
+
+static int is_child_device(char *devpath)
+{
+ return (devpath[2] ? 1 : 0);
+}
+
+static int is_hub_limit(char *devpath)
+{
+ return ((strlen(devpath) >= 4) ? 1 : 0);
+}
+
+static void get_port_number(char *devpath, u16 *root_port, u16 *hub_port)
+{
+ if (root_port) {
+ *root_port = (devpath[0] & 0x0F) - 1;
+ if (*root_port >= R8A66597_MAX_ROOT_HUB)
+ err("illegal root port number");
+ }
+ if (hub_port)
+ *hub_port = devpath[2] & 0x0F;
+}
+
+static u16 get_r8a66597_usb_speed(enum usb_device_speed speed)
+{
+ u16 usbspd = 0;
+
+ switch (speed) {
+ case USB_SPEED_LOW:
+ usbspd = LSMODE;
+ break;
+ case USB_SPEED_FULL:
+ usbspd = FSMODE;
+ break;
+ case USB_SPEED_HIGH:
+ usbspd = HSMODE;
+ break;
+ default:
+ err("unknown speed");
+ break;
+ }
+
+ return usbspd;
+}
+
+static void set_child_connect_map(struct r8a66597 *r8a66597, int address)
+{
+ int idx;
+
+ idx = address / 32;
+ r8a66597->child_connect_map[idx] |= 1 << (address % 32);
+}
+
+static void put_child_connect_map(struct r8a66597 *r8a66597, int address)
+{
+ int idx;
+
+ idx = address / 32;
+ r8a66597->child_connect_map[idx] &= ~(1 << (address % 32));
+}
+
+static void set_pipe_reg_addr(struct r8a66597_pipe *pipe, u8 dma_ch)
+{
+ u16 pipenum = pipe->info.pipenum;
+ unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO};
+ unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL};
+ unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR};
+
+ if (dma_ch > R8A66597_PIPE_NO_DMA) /* dma fifo not use? */
+ dma_ch = R8A66597_PIPE_NO_DMA;
+
+ pipe->fifoaddr = fifoaddr[dma_ch];
+ pipe->fifosel = fifosel[dma_ch];
+ pipe->fifoctr = fifoctr[dma_ch];
+
+ if (pipenum == 0)
+ pipe->pipectr = DCPCTR;
+ else
+ pipe->pipectr = get_pipectr_addr(pipenum);
+
+ if (check_bulk_or_isoc(pipenum)) {
+ pipe->pipetre = get_pipetre_addr(pipenum);
+ pipe->pipetrn = get_pipetrn_addr(pipenum);
+ } else {
+ pipe->pipetre = 0;
+ pipe->pipetrn = 0;
+ }
+}
+
+static struct r8a66597_device *
+get_urb_to_r8a66597_dev(struct r8a66597 *r8a66597, struct urb *urb)
+{
+ if (usb_pipedevice(urb->pipe) == 0)
+ return &r8a66597->device0;
+
+ return dev_get_drvdata(&urb->dev->dev);
+}
+
+static int make_r8a66597_device(struct r8a66597 *r8a66597,
+ struct urb *urb, u8 addr)
+{
+ struct r8a66597_device *dev;
+ int usb_address = urb->setup_packet[2]; /* urb->pipe is address 0 */
+
+ dev = kzalloc(sizeof(struct r8a66597_device), GFP_KERNEL);
+ if (dev == NULL)
+ return -ENOMEM;
+
+ dev_set_drvdata(&urb->dev->dev, dev);
+ dev->udev = urb->dev;
+ dev->address = addr;
+ dev->usb_address = usb_address;
+ dev->state = USB_STATE_ADDRESS;
+ dev->ep_in_toggle = 0;
+ dev->ep_out_toggle = 0;
+ INIT_LIST_HEAD(&dev->device_list);
+ list_add_tail(&dev->device_list, &r8a66597->child_device);
+
+ get_port_number(urb->dev->devpath, &dev->root_port, &dev->hub_port);
+ if (!is_child_device(urb->dev->devpath))
+ r8a66597->root_hub[dev->root_port].dev = dev;
+
+ set_devadd_reg(r8a66597, dev->address,
+ get_r8a66597_usb_speed(urb->dev->speed),
+ get_parent_r8a66597_address(r8a66597, urb->dev),
+ dev->hub_port, dev->root_port);
+
+ return 0;
+}
+
+/* this function must be called with interrupt disabled */
+static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb)
+{
+ u8 addr; /* R8A66597's address */
+ struct r8a66597_device *dev;
+
+ if (is_hub_limit(urb->dev->devpath)) {
+ err("Externel hub limit reached.");
+ return 0;
+ }
+
+ dev = get_urb_to_r8a66597_dev(r8a66597, urb);
+ if (dev && dev->state >= USB_STATE_ADDRESS)
+ return dev->address;
+
+ for (addr = 1; addr <= R8A66597_MAX_DEVICE; addr++) {
+ if (r8a66597->address_map & (1 << addr))
+ continue;
+
+ dbg("alloc_address: r8a66597_addr=%d", addr);
+ r8a66597->address_map |= 1 << addr;
+
+ if (make_r8a66597_device(r8a66597, urb, addr) < 0)
+ return 0;
+
+ return addr;
+ }
+
+ err("cannot communicate with a USB device more than 10.(%x)",
+ r8a66597->address_map);
+
+ return 0;
+}
+
+/* this function must be called with interrupt disabled */
+static void free_usb_address(struct r8a66597 *r8a66597,
+ struct r8a66597_device *dev)
+{
+ int port;
+
+ if (!dev)
+ return;
+
+ dbg("free_addr: addr=%d", dev->address);
+
+ dev->state = USB_STATE_DEFAULT;
+ r8a66597->address_map &= ~(1 << dev->address);
+ dev->address = 0;
+ dev_set_drvdata(&dev->udev->dev, NULL);
+ list_del(&dev->device_list);
+ kfree(dev);
+
+ for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) {
+ if (r8a66597->root_hub[port].dev == dev) {
+ r8a66597->root_hub[port].dev = NULL;
+ break;
+ }
+ }
+}
+
+static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg,
+ u16 mask, u16 loop)
+{
+ u16 tmp;
+ int i = 0;
+
+ do {
+ tmp = r8a66597_read(r8a66597, reg);
+ if (i++ > 1000000) {
+ err("register%lx, loop %x is timeout", reg, loop);
+ break;
+ }
+ ndelay(1);
+ } while ((tmp & mask) != loop);
+}
+
+/* this function must be called with interrupt disabled */
+static void pipe_start(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe)
+{
+ u16 tmp;
+
+ tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID;
+ if ((pipe->info.pipenum != 0) & ((tmp & PID_STALL) != 0)) /* stall? */
+ r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr);
+ r8a66597_mdfy(r8a66597, PID_BUF, PID, pipe->pipectr);
+}
+
+/* this function must be called with interrupt disabled */
+static void pipe_stop(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe)
+{
+ u16 tmp;
+
+ tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID;
+ if ((tmp & PID_STALL11) != PID_STALL11) /* force stall? */
+ r8a66597_mdfy(r8a66597, PID_STALL, PID, pipe->pipectr);
+ r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr);
+ r8a66597_reg_wait(r8a66597, pipe->pipectr, PBUSY, 0);
+}
+
+/* this function must be called with interrupt disabled */
+static void clear_all_buffer(struct r8a66597 *r8a66597,
+ struct r8a66597_pipe *pipe)
+{
+ u16 tmp;
+
+ if (!pipe || pipe->info.pipenum == 0)
+ return;
+
+ pipe_stop(r8a66597, pipe);
+ r8a66597_bset(r8a66597, ACLRM, pipe->pipectr);
+ tmp = r8a66597_read(r8a66597, pipe->pipectr);
+ tmp = r8a66597_read(r8a66597, pipe->pipectr);
+ tmp = r8a66597_read(r8a66597, pipe->pipectr);
+ r8a66597_bclr(r8a66597, ACLRM, pipe->pipectr);
+}
+
+/* this function must be called with interrupt disabled */
+static void r8a66597_pipe_toggle(struct r8a66597 *r8a66597,
+ struct r8a66597_pipe *pipe, int toggle)
+{
+ if (toggle)
+ r8a66597_bset(r8a66597, SQSET, pipe->pipectr);
+ else
+ r8a66597_bset(r8a66597, SQCLR, pipe->pipectr);
+}
+
+/* this function must be called with interrupt disabled */
+static inline void cfifo_change(struct r8a66597 *r8a66597, u16 pipenum)
+{
+ r8a66597_mdfy(r8a66597, MBW | pipenum, MBW | CURPIPE, CFIFOSEL);
+ r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum);
+}
+
+/* this function must be called with interrupt disabled */
+static inline void fifo_change_from_pipe(struct r8a66597 *r8a66597,
+ struct r8a66597_pipe *pipe)
+{
+ cfifo_change(r8a66597, 0);
+ r8a66597_mdfy(r8a66597, MBW | 0, MBW | CURPIPE, D0FIFOSEL);
+ r8a66597_mdfy(r8a66597, MBW | 0, MBW | CURPIPE, D1FIFOSEL);
+
+ r8a66597_mdfy(r8a66597, MBW | pipe->info.pipenum, MBW | CURPIPE,
+ pipe->fifosel);
+ r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, pipe->info.pipenum);
+}
+
+static u16 r8a66597_get_pipenum(struct urb *urb, struct usb_host_endpoint *hep)
+{
+ struct r8a66597_pipe *pipe = hep->hcpriv;
+
+ if (usb_pipeendpoint(urb->pipe) == 0)
+ return 0;
+ else
+ return pipe->info.pipenum;
+}
+
+static u16 get_urb_to_r8a66597_addr(struct r8a66597 *r8a66597, struct urb *urb)
+{
+ struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
+
+ return (usb_pipedevice(urb->pipe) == 0) ? 0 : dev->address;
+}
+
+static unsigned short *get_toggle_pointer(struct r8a66597_device *dev,
+ int urb_pipe)
+{
+ if (!dev)
+ return NULL;
+
+ return usb_pipein(urb_pipe) ? &dev->ep_in_toggle : &dev->ep_out_toggle;
+}
+
+/* this function must be called with interrupt disabled */
+static void pipe_toggle_set(struct r8a66597 *r8a66597,
+ struct r8a66597_pipe *pipe,
+ struct urb *urb, int set)
+{
+ struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
+ unsigned char endpoint = usb_pipeendpoint(urb->pipe);
+ unsigned short *toggle = get_toggle_pointer(dev, urb->pipe);
+
+ if (!toggle)
+ return;
+
+ if (set)
+ *toggle |= 1 << endpoint;
+ else
+ *toggle &= ~(1 << endpoint);
+}
+
+/* this function must be called with interrupt disabled */
+static void pipe_toggle_save(struct r8a66597 *r8a66597,
+ struct r8a66597_pipe *pipe,
+ struct urb *urb)
+{
+ if (r8a66597_read(r8a66597, pipe->pipectr) & SQMON)
+ pipe_toggle_set(r8a66597, pipe, urb, 1);
+ else
+ pipe_toggle_set(r8a66597, pipe, urb, 0);
+}
+
+/* this function must be called with interrupt disabled */
+static void pipe_toggle_restore(struct r8a66597 *r8a66597,
+ struct r8a66597_pipe *pipe,
+ struct urb *urb)
+{
+ struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
+ unsigned char endpoint = usb_pipeendpoint(urb->pipe);
+ unsigned short *toggle = get_toggle_pointer(dev, urb->pipe);
+
+ r8a66597_pipe_toggle(r8a66597, pipe, *toggle & (1 << endpoint));
+}
+
+/* this function must be called with interrupt disabled */
+static void pipe_buffer_setting(struct r8a66597 *r8a66597,
+ struct r8a66597_pipe_info *info)
+{
+ u16 val = 0;
+
+ if (info->pipenum == 0)
+ return;
+
+ r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(info->pipenum));
+ r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(info->pipenum));
+ r8a66597_write(r8a66597, info->pipenum, PIPESEL);
+ if (!info->dir_in)
+ val |= R8A66597_DIR;
+ if (info->type == R8A66597_BULK && info->dir_in)
+ val |= R8A66597_DBLB | R8A66597_SHTNAK;
+ val |= info->type | info->epnum;
+ r8a66597_write(r8a66597, val, PIPECFG);
+
+ r8a66597_write(r8a66597, (info->buf_bsize << 10) | (info->bufnum),
+ PIPEBUF);
+ r8a66597_write(r8a66597, make_devsel(info->address) | info->maxpacket,
+ PIPEMAXP);
+ if (info->interval)
+ info->interval--;
+ r8a66597_write(r8a66597, info->interval, PIPEPERI);
+}
+
+
+
+/* this function must be called with interrupt disabled */
+static void pipe_setting(struct r8a66597 *r8a66597, struct r8a66597_td *td)
+{
+ struct r8a66597_pipe_info *info;
+ struct urb *urb = td->urb;
+
+ if (td->pipenum > 0) {
+ info = &td->pipe->info;
+ cfifo_change(r8a66597, 0);
+ pipe_buffer_setting(r8a66597, info);
+
+ if (!usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe),
+ usb_pipeout(urb->pipe)) &&
+ !usb_pipecontrol(urb->pipe)) {
+ r8a66597_pipe_toggle(r8a66597, td->pipe, 0);
+ pipe_toggle_set(r8a66597, td->pipe, urb, 0);
+ clear_all_buffer(r8a66597, td->pipe);
+ usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
+ usb_pipeout(urb->pipe), 1);
+ }
+ pipe_toggle_restore(r8a66597, td->pipe, urb);
+ }
+}
+
+/* this function must be called with interrupt disabled */
+static u16 get_empty_pipenum(struct r8a66597 *r8a66597,
+ struct usb_endpoint_descriptor *ep)
+{
+ u16 array[R8A66597_MAX_NUM_PIPE], i = 0, min;
+
+ memset(array, 0, sizeof(array));
+ switch(ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
+ case USB_ENDPOINT_XFER_BULK:
+ if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
+ array[i++] = 4;
+ else {
+ array[i++] = 3;
+ array[i++] = 5;
+ }
+ break;
+ case USB_ENDPOINT_XFER_INT:
+ if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) {
+ array[i++] = 6;
+ array[i++] = 7;
+ array[i++] = 8;
+ } else
+ array[i++] = 9;
+ break;
+ case USB_ENDPOINT_XFER_ISOC:
+ if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
+ array[i++] = 2;
+ else
+ array[i++] = 1;
+ break;
+ default:
+ err("Illegal type");
+ return 0;
+ }
+
+ i = 1;
+ min = array[0];
+ while (array[i] != 0) {
+ if (r8a66597->pipe_cnt[min] > r8a66597->pipe_cnt[array[i]])
+ min = array[i];
+ i++;
+ }
+
+ return min;
+}
+
+static u16 get_r8a66597_type(__u8 type)
+{
+ u16 r8a66597_type;
+
+ switch(type) {
+ case USB_ENDPOINT_XFER_BULK:
+ r8a66597_type = R8A66597_BULK;
+ break;
+ case USB_ENDPOINT_XFER_INT:
+ r8a66597_type = R8A66597_INT;
+ break;
+ case USB_ENDPOINT_XFER_ISOC:
+ r8a66597_type = R8A66597_ISO;
+ break;
+ default:
+ err("Illegal type");
+ r8a66597_type = 0x0000;
+ break;
+ }
+
+ return r8a66597_type;
+}
+
+static u16 get_bufnum(u16 pipenum)
+{
+ u16 bufnum = 0;
+
+ if (pipenum == 0)
+ bufnum = 0;
+ else if (check_bulk_or_isoc(pipenum))
+ bufnum = 8 + (pipenum - 1) * R8A66597_BUF_BSIZE*2;
+ else if (check_interrupt(pipenum))
+ bufnum = 4 + (pipenum - 6);
+ else
+ err("Illegal pipenum (%d)", pipenum);
+
+ return bufnum;
+}
+
+static u16 get_buf_bsize(u16 pipenum)
+{
+ u16 buf_bsize = 0;
+
+ if (pipenum == 0)
+ buf_bsize = 3;
+ else if (check_bulk_or_isoc(pipenum))
+ buf_bsize = R8A66597_BUF_BSIZE - 1;
+ else if (check_interrupt(pipenum))
+ buf_bsize = 0;
+ else
+ err("Illegal pipenum (%d)", pipenum);
+
+ return buf_bsize;
+}
+
+/* this function must be called with interrupt disabled */
+static void enable_r8a66597_pipe_dma(struct r8a66597 *r8a66597,
+ struct r8a66597_device *dev,
+ struct r8a66597_pipe *pipe,
+ struct urb *urb)
+{
+ int i;
+ struct r8a66597_pipe_info *info = &pipe->info;
+
+ if ((pipe->info.pipenum != 0) && (info->type != R8A66597_INT)) {
+ for (i = 0; i < R8A66597_MAX_DMA_CHANNEL; i++) {
+ if ((r8a66597->dma_map & (1 << i)) != 0)
+ continue;
+
+ info("address %d, EndpointAddress 0x%02x use DMA FIFO",
+ usb_pipedevice(urb->pipe),
+ info->dir_in ? USB_ENDPOINT_DIR_MASK + info->epnum
+ : info->epnum);
+
+ r8a66597->dma_map |= 1 << i;
+ dev->dma_map |= 1 << i;
+ set_pipe_reg_addr(pipe, i);
+
+ cfifo_change(r8a66597, 0);
+ r8a66597_mdfy(r8a66597, MBW | pipe->info.pipenum,
+ MBW | CURPIPE, pipe->fifosel);
+
+ r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE,
+ pipe->info.pipenum);
+ r8a66597_bset(r8a66597, BCLR, pipe->fifoctr);
+ break;
+ }
+ }
+}
+
+/* this function must be called with interrupt disabled */
+static void enable_r8a66597_pipe(struct r8a66597 *r8a66597, struct urb *urb,
+ struct usb_host_endpoint *hep,
+ struct r8a66597_pipe_info *info)
+{
+ struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
+ struct r8a66597_pipe *pipe = hep->hcpriv;
+
+ dbg("enable_pipe:");
+
+ pipe->info = *info;
+ set_pipe_reg_addr(pipe, R8A66597_PIPE_NO_DMA);
+ r8a66597->pipe_cnt[pipe->info.pipenum]++;
+ dev->pipe_cnt[pipe->info.pipenum]++;
+
+ enable_r8a66597_pipe_dma(r8a66597, dev, pipe, urb);
+}
+
+/* this function must be called with interrupt disabled */
+static void force_dequeue(struct r8a66597 *r8a66597, u16 pipenum, u16 address)
+{
+ struct r8a66597_td *td, *next;
+ struct urb *urb;
+ struct list_head *list = &r8a66597->pipe_queue[pipenum];
+
+ if (list_empty(list))
+ return;
+
+ list_for_each_entry_safe(td, next, list, queue) {
+ if (!td)
+ continue;
+ if (td->address != address)
+ continue;
+
+ urb = td->urb;
+ list_del(&td->queue);
+ kfree(td);
+
+ if (urb) {
+ urb->status = -ENODEV;
+ urb->hcpriv = NULL;
+ spin_unlock(&r8a66597->lock);
+ usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597), urb);
+ spin_lock(&r8a66597->lock);
+ }
+ break;
+ }
+}
+
+/* this function must be called with interrupt disabled */
+static void disable_r8a66597_pipe_all(struct r8a66597 *r8a66597,
+ struct r8a66597_device *dev)
+{
+ int check_ep0 = 0;
+ u16 pipenum;
+
+ if (!dev)
+ return;
+
+ for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
+ if (!dev->pipe_cnt[pipenum])
+ continue;
+
+ if (!check_ep0) {
+ check_ep0 = 1;
+ force_dequeue(r8a66597, 0, dev->address);
+ }
+
+ r8a66597->pipe_cnt[pipenum] -= dev->pipe_cnt[pipenum];
+ dev->pipe_cnt[pipenum] = 0;
+ force_dequeue(r8a66597, pipenum, dev->address);
+ }
+
+ dbg("disable_pipe");
+
+ r8a66597->dma_map &= ~(dev->dma_map);
+ dev->dma_map = 0;
+}
+
+/* this function must be called with interrupt disabled */
+static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb,
+ struct usb_host_endpoint *hep,
+ struct usb_endpoint_descriptor *ep)
+{
+ struct r8a66597_pipe_info info;
+
+ info.pipenum = get_empty_pipenum(r8a66597, ep);
+ info.address = get_urb_to_r8a66597_addr(r8a66597, urb);
+ info.epnum = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
+ info.maxpacket = ep->wMaxPacketSize;
+ info.type = get_r8a66597_type(ep->bmAttributes
+ & USB_ENDPOINT_XFERTYPE_MASK);
+ info.bufnum = get_bufnum(info.pipenum);
+ info.buf_bsize = get_buf_bsize(info.pipenum);
+ info.interval = ep->bInterval;
+ if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
+ info.dir_in = 1;
+ else
+ info.dir_in = 0;
+
+ enable_r8a66597_pipe(r8a66597, urb, hep, &info);
+}
+
+static void init_pipe_config(struct r8a66597 *r8a66597, struct urb *urb)
+{
+ struct r8a66597_device *dev;
+
+ dev = get_urb_to_r8a66597_dev(r8a66597, urb);
+ dev->state = USB_STATE_CONFIGURED;
+}
+
+static void pipe_irq_enable(struct r8a66597 *r8a66597, struct urb *urb,
+ u16 pipenum)
+{
+ if (pipenum == 0 && usb_pipeout(urb->pipe))
+ enable_irq_empty(r8a66597, pipenum);
+ else
+ enable_irq_ready(r8a66597, pipenum);
+
+ if (!usb_pipeisoc(urb->pipe))
+ enable_irq_nrdy(r8a66597, pipenum);
+}
+
+static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum)
+{
+ disable_irq_ready(r8a66597, pipenum);
+ disable_irq_nrdy(r8a66597, pipenum);
+}
+
+/* this function must be called with interrupt disabled */
+static void r8a66597_usb_preconnect(struct r8a66597 *r8a66597, int port)
+{
+ r8a66597->root_hub[port].port |= (1 << USB_PORT_FEAT_CONNECTION)
+ | (1 << USB_PORT_FEAT_C_CONNECTION);
+ r8a66597_write(r8a66597, (u16)~DTCH, get_intsts_reg(port));
+ r8a66597_bset(r8a66597, DTCHE, get_intenb_reg(port));
+}
+
+/* this function must be called with interrupt disabled */
+static void r8a66597_usb_connect(struct r8a66597 *r8a66597, int port)
+{
+ u16 speed = get_rh_usb_speed(r8a66597, port);
+ struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
+
+ if (speed == HSMODE)
+ rh->port |= (1 << USB_PORT_FEAT_HIGHSPEED);
+ else if (speed == LSMODE)
+ rh->port |= (1 << USB_PORT_FEAT_LOWSPEED);
+
+ rh->port &= ~(1 << USB_PORT_FEAT_RESET);
+ rh->port |= 1 << USB_PORT_FEAT_ENABLE;
+}
+
+/* this function must be called with interrupt disabled */
+static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597, int port)
+{
+ struct r8a66597_device *dev = r8a66597->root_hub[port].dev;
+
+ r8a66597->root_hub[port].port &= ~(1 << USB_PORT_FEAT_CONNECTION);
+ r8a66597->root_hub[port].port |= (1 << USB_PORT_FEAT_C_CONNECTION);
+
+ disable_r8a66597_pipe_all(r8a66597, dev);
+ free_usb_address(r8a66597, dev);
+
+ r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port));
+}
+
+/* this function must be called with interrupt disabled */
+static void prepare_setup_packet(struct r8a66597 *r8a66597,
+ struct r8a66597_td *td)
+{
+ int i;
+ u16 *p = (u16 *)td->urb->setup_packet;
+ unsigned long setup_addr = USBREQ;
+
+ r8a66597_write(r8a66597, make_devsel(td->address) | td->maxpacket,
+ DCPMAXP);
+ r8a66597_write(r8a66597, (u16)~(SIGN | SACK), INTSTS1);
+
+ for (i = 0; i < 4; i++) {
+ r8a66597_write(r8a66597, p[i], setup_addr);
+ setup_addr += 2;
+ }
+ r8a66597_write(r8a66597, SUREQ, DCPCTR);
+}
+
+/* this function must be called with interrupt disabled */
+static void prepare_packet_read(struct r8a66597 *r8a66597,
+ struct r8a66597_td *td)
+{
+ struct urb *urb = td->urb;
+
+ if (usb_pipecontrol(urb->pipe)) {
+ r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
+ r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
+ r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
+ if (urb->actual_length == 0) {
+ r8a66597_pipe_toggle(r8a66597, td->pipe, 1);
+ r8a66597_write(r8a66597, BCLR, CFIFOCTR);
+ }
+ pipe_irq_disable(r8a66597, td->pipenum);
+ pipe_start(r8a66597, td->pipe);
+ pipe_irq_enable(r8a66597, urb, td->pipenum);
+ } else {
+ if (urb->actual_length == 0) {
+ pipe_irq_disable(r8a66597, td->pipenum);
+ pipe_setting(r8a66597, td);
+ pipe_stop(r8a66597, td->pipe);
+ r8a66597_write(r8a66597, (u16)~(1 << td->pipenum),
+ BRDYSTS);
+
+ if (td->pipe->pipetre) {
+ r8a66597_write(r8a66597, TRCLR,
+ td->pipe->pipetre);
+ r8a66597_write(r8a66597,
+ (urb->transfer_buffer_length
+ + td->maxpacket - 1)
+ / td->maxpacket,
+ td->pipe->pipetrn);
+ r8a66597_bset(r8a66597, TRENB,
+ td->pipe->pipetre);
+ }
+
+ pipe_start(r8a66597, td->pipe);
+ pipe_irq_enable(r8a66597, urb, td->pipenum);
+ }
+ }
+}
+
+/* this function must be called with interrupt disabled */
+static void prepare_packet_write(struct r8a66597 *r8a66597,
+ struct r8a66597_td *td)
+{
+ u16 tmp;
+ struct urb *urb = td->urb;
+
+ if (usb_pipecontrol(urb->pipe)) {
+ pipe_stop(r8a66597, td->pipe);
+ r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG);
+ r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL);
+ r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
+ if (urb->actual_length == 0) {
+ r8a66597_pipe_toggle(r8a66597, td->pipe, 1);
+ r8a66597_write(r8a66597, BCLR, CFIFOCTR);
+ }
+ } else {
+ if (urb->actual_length == 0)
+ pipe_setting(r8a66597, td);
+ if (td->pipe->pipetre)
+ r8a66597_bclr(r8a66597, TRENB, td->pipe->pipetre);
+ }
+ r8a66597_write(r8a66597, (u16)~(1 << td->pipenum), BRDYSTS);
+
+ fifo_change_from_pipe(r8a66597, td->pipe);
+ tmp = r8a66597_read(r8a66597, td->pipe->fifoctr);
+ if (unlikely((tmp & FRDY) == 0))
+ pipe_irq_enable(r8a66597, urb, td->pipenum);
+ else
+ packet_write(r8a66597, td->pipenum);
+ pipe_start(r8a66597, td->pipe);
+}
+
+/* this function must be called with interrupt disabled */
+static void prepare_status_packet(struct r8a66597 *r8a66597,
+ struct r8a66597_td *td)
+{
+ struct urb *urb = td->urb;
+
+ r8a66597_pipe_toggle(r8a66597, td->pipe, 1);
+
+ if (urb->setup_packet[0] & USB_ENDPOINT_DIR_MASK) {
+ r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG);
+ r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL);
+ r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
+ r8a66597_write(r8a66597, BVAL | BCLR, CFIFOCTR);
+ r8a66597_write(r8a66597, (u16)~BEMP0, BEMPSTS);
+ enable_irq_empty(r8a66597, 0);
+ } else {
+ r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
+ r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
+ r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
+ r8a66597_write(r8a66597, BCLR, CFIFOCTR);
+ r8a66597_write(r8a66597, (u16)~BRDY0, BRDYSTS);
+ r8a66597_write(r8a66597, (u16)~BEMP0, BEMPSTS);
+ enable_irq_ready(r8a66597, 0);
+ }
+ enable_irq_nrdy(r8a66597, 0);
+ pipe_start(r8a66597, td->pipe);
+}
+
+/* this function must be called with interrupt disabled */
+static int start_transfer(struct r8a66597 *r8a66597, struct r8a66597_td *td)
+{
+ BUG_ON(!td);
+
+ switch (td->type) {
+ case USB_PID_SETUP:
+ if (td->urb->setup_packet[1] == USB_REQ_SET_ADDRESS) {
+ td->set_address = 1;
+ td->urb->setup_packet[2] = alloc_usb_address(r8a66597,
+ td->urb);
+ if (td->urb->setup_packet[2] == 0)
+ return -EPIPE;
+ }
+ prepare_setup_packet(r8a66597, td);
+ break;
+ case USB_PID_IN:
+ prepare_packet_read(r8a66597, td);
+ break;
+ case USB_PID_OUT:
+ prepare_packet_write(r8a66597, td);
+ break;
+ case USB_PID_ACK:
+ prepare_status_packet(r8a66597, td);
+ break;
+ default:
+ err("invalid type.");
+ break;
+ }
+
+ return 0;
+}
+
+static int check_transfer_finish(struct r8a66597_td *td, struct urb *urb)
+{
+ if (usb_pipeisoc(urb->pipe)) {
+ if (urb->number_of_packets == td->iso_cnt)
+ return 1;
+ }
+
+ /* control or bulk or interrupt */
+ if ((urb->transfer_buffer_length <= urb->actual_length) ||
+ (td->short_packet) || (td->zero_packet))
+ return 1;
+
+ return 0;
+}
+
+/* this function must be called with interrupt disabled */
+static void set_td_timer(struct r8a66597 *r8a66597, struct r8a66597_td *td)
+{
+ unsigned long time;
+
+ BUG_ON(!td);
+
+ if (!list_empty(&r8a66597->pipe_queue[td->pipenum]) &&
+ !usb_pipecontrol(td->urb->pipe) && usb_pipein(td->urb->pipe)) {
+ r8a66597->timeout_map |= 1 << td->pipenum;
+ switch (usb_pipetype(td->urb->pipe)) {
+ case PIPE_INTERRUPT:
+ case PIPE_ISOCHRONOUS:
+ time = 30;
+ break;
+ default:
+ time = 300;
+ break;
+ }
+
+ mod_timer(&r8a66597->td_timer[td->pipenum],
+ jiffies + msecs_to_jiffies(time));
+ }
+}
+
+/* this function must be called with interrupt disabled */
+static void done(struct r8a66597 *r8a66597, struct r8a66597_td *td,
+ u16 pipenum, struct urb *urb)
+{
+ int restart = 0;
+ struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597);
+
+ r8a66597->timeout_map &= ~(1 << pipenum);
+
+ if (likely(td)) {
+ if (td->set_address && urb->status != 0)
+ r8a66597->address_map &= ~(1 << urb->setup_packet[2]);
+
+ pipe_toggle_save(r8a66597, td->pipe, urb);
+ list_del(&td->queue);
+ kfree(td);
+ }
+
+ if (!list_empty(&r8a66597->pipe_queue[pipenum]))
+ restart = 1;
+
+ if (likely(urb)) {
+ if (usb_pipeisoc(urb->pipe))
+ urb->start_frame = r8a66597_get_frame(hcd);
+
+ urb->hcpriv = NULL;
+ spin_unlock(&r8a66597->lock);
+ usb_hcd_giveback_urb(hcd, urb);
+ spin_lock(&r8a66597->lock);
+ }
+
+ if (restart) {
+ td = r8a66597_get_td(r8a66597, pipenum);
+ if (unlikely(!td))
+ return;
+
+ start_transfer(r8a66597, td);
+ set_td_timer(r8a66597, td);
+ }
+}
+
+/* this function must be called with interrupt disabled */
+static void finish_request(struct r8a66597 *r8a66597, struct r8a66597_td *td,
+ u16 pipenum, struct urb *urb)
+__releases(r8a66597->lock) __acquires(r8a66597->lock)
+{
+ done(r8a66597, td, pipenum, urb);
+}
+
+static void packet_read(struct r8a66597 *r8a66597, u16 pipenum)
+{
+ u16 tmp;
+ int rcv_len, bufsize, urb_len, size;
+ u16 *buf;
+ struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum);
+ struct urb *urb;
+ int finish = 0;
+
+ if (unlikely(!td))
+ return;
+ urb = td->urb;
+
+ fifo_change_from_pipe(r8a66597, td->pipe);
+ tmp = r8a66597_read(r8a66597, td->pipe->fifoctr);
+ if (unlikely((tmp & FRDY) == 0)) {
+ urb->status = -EPIPE;
+ pipe_stop(r8a66597, td->pipe);
+ pipe_irq_disable(r8a66597, pipenum);
+ err("in fifo not ready (%d)", pipenum);
+ finish_request(r8a66597, td, pipenum, td->urb);
+ return;
+ }
+
+ /* prepare parameters */
+ rcv_len = tmp & DTLN;
+ bufsize = td->maxpacket;
+ if (usb_pipeisoc(urb->pipe)) {
+ buf = (u16 *)(urb->transfer_buffer +
+ urb->iso_frame_desc[td->iso_cnt].offset);
+ urb_len = urb->iso_frame_desc[td->iso_cnt].length;
+ } else {
+ buf = (void *)urb->transfer_buffer + urb->actual_length;
+ urb_len = urb->transfer_buffer_length - urb->actual_length;
+ }
+ if (rcv_len < bufsize)
+ size = min(rcv_len, urb_len);
+ else
+ size = min(bufsize, urb_len);
+
+ /* update parameters */
+ urb->actual_length += size;
+ if (rcv_len == 0)
+ td->zero_packet = 1;
+ if ((size % td->maxpacket) > 0) {
+ td->short_packet = 1;
+ if (urb->transfer_buffer_length != urb->actual_length &&
+ urb->transfer_flags & URB_SHORT_NOT_OK)
+ td->urb->status = -EREMOTEIO;
+ }
+ if (usb_pipeisoc(urb->pipe)) {
+ urb->iso_frame_desc[td->iso_cnt].actual_length = size;
+ urb->iso_frame_desc[td->iso_cnt].status = 0;
+ td->iso_cnt++;
+ }
+
+ /* check transfer finish */
+ if (check_transfer_finish(td, urb)) {
+ pipe_stop(r8a66597, td->pipe);
+ pipe_irq_disable(r8a66597, pipenum);
+ finish = 1;
+ }
+
+ /* read fifo */
+ if (urb->transfer_buffer) {
+ if (size == 0)
+ r8a66597_write(r8a66597, BCLR, td->pipe->fifoctr);
+ else
+ r8a66597_read_fifo(r8a66597, td->pipe->fifoaddr,
+ buf, size);
+ }
+
+ if (finish && pipenum != 0) {
+ if (td->urb->status == -EINPROGRESS)
+ td->urb->status = 0;
+ finish_request(r8a66597, td, pipenum, urb);
+ }
+}
+
+static void packet_write(struct r8a66597 *r8a66597, u16 pipenum)
+{
+ u16 tmp;
+ int bufsize, size;
+ u16 *buf;
+ struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum);
+ struct urb *urb;
+
+ if (unlikely(!td))
+ return;
+ urb = td->urb;
+
+ fifo_change_from_pipe(r8a66597, td->pipe);
+ tmp = r8a66597_read(r8a66597, td->pipe->fifoctr);
+ if (unlikely((tmp & FRDY) == 0)) {
+ urb->status = -EPIPE;
+ pipe_stop(r8a66597, td->pipe);
+ pipe_irq_disable(r8a66597, pipenum);
+ err("out write fifo not ready. (%d)", pipenum);
+ finish_request(r8a66597, td, pipenum, td->urb);
+ return;
+ }
+
+ /* prepare parameters */
+ bufsize = td->maxpacket;
+ if (usb_pipeisoc(urb->pipe)) {
+ buf = (u16 *)(urb->transfer_buffer +
+ urb->iso_frame_desc[td->iso_cnt].offset);
+ size = min(bufsize,
+ (int)urb->iso_frame_desc[td->iso_cnt].length);
+ } else {
+ buf = (u16 *)(urb->transfer_buffer + urb->actual_length);
+ size = min((int)bufsize,
+ urb->transfer_buffer_length - urb->actual_length);
+ }
+
+ /* write fifo */
+ if (pipenum > 0)
+ r8a66597_write(r8a66597, (u16)~(1 << pipenum), BEMPSTS);
+ if (urb->transfer_buffer) {
+ r8a66597_write_fifo(r8a66597, td->pipe->fifoaddr, buf, size);
+ if (!usb_pipebulk(urb->pipe) || td->maxpacket != size)
+ r8a66597_write(r8a66597, BVAL, td->pipe->fifoctr);
+ }
+
+ /* update parameters */
+ urb->actual_length += size;
+ if (usb_pipeisoc(urb->pipe)) {
+ urb->iso_frame_desc[td->iso_cnt].actual_length = size;
+ urb->iso_frame_desc[td->iso_cnt].status = 0;
+ td->iso_cnt++;
+ }
+
+ /* check transfer finish */
+ if (check_transfer_finish(td, urb)) {
+ disable_irq_ready(r8a66597, pipenum);
+ enable_irq_empty(r8a66597, pipenum);
+ if (!usb_pipeisoc(urb->pipe))
+ enable_irq_nrdy(r8a66597, pipenum);
+ } else
+ pipe_irq_enable(r8a66597, urb, pipenum);
+}
+
+
+static void check_next_phase(struct r8a66597 *r8a66597)
+{
+ struct r8a66597_td *td = r8a66597_get_td(r8a66597, 0);
+ struct urb *urb;
+ u8 finish = 0;
+
+ if (unlikely(!td))
+ return;
+ urb = td->urb;
+
+ switch (td->type) {
+ case USB_PID_IN:
+ case USB_PID_OUT:
+ if (urb->status != -EINPROGRESS) {
+ finish = 1;
+ break;
+ }
+ if (check_transfer_finish(td, urb))
+ td->type = USB_PID_ACK;
+ break;
+ case USB_PID_SETUP:
+ if (urb->status != -EINPROGRESS)
+ finish = 1;
+ else if (urb->transfer_buffer_length == urb->actual_length) {
+ td->type = USB_PID_ACK;
+ urb->status = 0;
+ } else if (usb_pipeout(urb->pipe))
+ td->type = USB_PID_OUT;
+ else
+ td->type = USB_PID_IN;
+ break;
+ case USB_PID_ACK:
+ finish = 1;
+ if (urb->status == -EINPROGRESS)
+ urb->status = 0;
+ break;
+ }
+
+ if (finish)
+ finish_request(r8a66597, td, 0, urb);
+ else
+ start_transfer(r8a66597, td);
+}
+
+static void set_urb_error(struct r8a66597 *r8a66597, u16 pipenum)
+{
+ struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum);
+
+ if (td && td->urb) {
+ u16 pid = r8a66597_read(r8a66597, td->pipe->pipectr) & PID;
+
+ if (pid == PID_NAK)
+ td->urb->status = -ECONNRESET;
+ else
+ td->urb->status = -EPIPE;
+ }
+}
+
+static void irq_pipe_ready(struct r8a66597 *r8a66597)
+{
+ u16 check;
+ u16 pipenum;
+ u16 mask;
+ struct r8a66597_td *td;
+
+ mask = r8a66597_read(r8a66597, BRDYSTS)
+ & r8a66597_read(r8a66597, BRDYENB);
+ r8a66597_write(r8a66597, (u16)~mask, BRDYSTS);
+ if (mask & BRDY0) {
+ td = r8a66597_get_td(r8a66597, 0);
+ if (td && td->type == USB_PID_IN)
+ packet_read(r8a66597, 0);
+ else
+ pipe_irq_disable(r8a66597, 0);
+ check_next_phase(r8a66597);
+ }
+
+ for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
+ check = 1 << pipenum;
+ if (mask & check) {
+ td = r8a66597_get_td(r8a66597, pipenum);
+ if (unlikely(!td))
+ continue;
+
+ if (td->type == USB_PID_IN)
+ packet_read(r8a66597, pipenum);
+ else if (td->type == USB_PID_OUT)
+ packet_write(r8a66597, pipenum);
+ }
+ }
+}
+
+static void irq_pipe_empty(struct r8a66597 *r8a66597)
+{
+ u16 tmp;
+ u16 check;
+ u16 pipenum;
+ u16 mask;
+ struct r8a66597_td *td;
+
+ mask = r8a66597_read(r8a66597, BEMPSTS)
+ & r8a66597_read(r8a66597, BEMPENB);
+ r8a66597_write(r8a66597, (u16)~mask, BEMPSTS);
+ if (mask & BEMP0) {
+ cfifo_change(r8a66597, 0);
+ td = r8a66597_get_td(r8a66597, 0);
+ if (td && td->type != USB_PID_OUT)
+ disable_irq_empty(r8a66597, 0);
+ check_next_phase(r8a66597);
+ }
+
+ for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
+ check = 1 << pipenum;
+ if (mask & check) {
+ struct r8a66597_td *td;
+ td = r8a66597_get_td(r8a66597, pipenum);
+ if (unlikely(!td))
+ continue;
+
+ tmp = r8a66597_read(r8a66597, td->pipe->pipectr);
+ if ((tmp & INBUFM) == 0) {
+ disable_irq_empty(r8a66597, pipenum);
+ pipe_irq_disable(r8a66597, pipenum);
+ if (td->urb->status == -EINPROGRESS)
+ td->urb->status = 0;
+ finish_request(r8a66597, td, pipenum, td->urb);
+ }
+ }
+ }
+}
+
+static void irq_pipe_nrdy(struct r8a66597 *r8a66597)
+{
+ u16 check;
+ u16 pipenum;
+ u16 mask;
+
+ mask = r8a66597_read(r8a66597, NRDYSTS)
+ & r8a66597_read(r8a66597, NRDYENB);
+ r8a66597_write(r8a66597, (u16)~mask, NRDYSTS);
+ if (mask & NRDY0) {
+ cfifo_change(r8a66597, 0);
+ set_urb_error(r8a66597, 0);
+ pipe_irq_disable(r8a66597, 0);
+ check_next_phase(r8a66597);
+ }
+
+ for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
+ check = 1 << pipenum;
+ if (mask & check) {
+ struct r8a66597_td *td;
+ td = r8a66597_get_td(r8a66597, pipenum);
+ if (unlikely(!td))
+ continue;
+
+ set_urb_error(r8a66597, pipenum);
+ pipe_irq_disable(r8a66597, pipenum);
+ pipe_stop(r8a66597, td->pipe);
+ finish_request(r8a66597, td, pipenum, td->urb);
+ }
+ }
+}
+
+static void start_root_hub_sampling(struct r8a66597 *r8a66597, int port)
+{
+ struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
+
+ rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST;
+ rh->scount = R8A66597_MAX_SAMPLING;
+ mod_timer(&r8a66597->rh_timer, jiffies + msecs_to_jiffies(50));
+}
+
+static irqreturn_t r8a66597_irq(struct usb_hcd *hcd)
+{
+ struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
+ u16 intsts0, intsts1, intsts2;
+ u16 intenb0, intenb1, intenb2;
+ u16 mask0, mask1, mask2;
+
+ spin_lock(&r8a66597->lock);
+
+ intsts0 = r8a66597_read(r8a66597, INTSTS0);
+ intsts1 = r8a66597_read(r8a66597, INTSTS1);
+ intsts2 = r8a66597_read(r8a66597, INTSTS2);
+ intenb0 = r8a66597_read(r8a66597, INTENB0);
+ intenb1 = r8a66597_read(r8a66597, INTENB1);
+ intenb2 = r8a66597_read(r8a66597, INTENB2);
+
+ mask2 = intsts2 & intenb2;
+ mask1 = intsts1 & intenb1;
+ mask0 = intsts0 & intenb0 & (BEMP | NRDY | BRDY);
+ if (mask2) {
+ if (mask2 & ATTCH) {
+ r8a66597_write(r8a66597, (u16)~ATTCH, INTSTS2);
+ r8a66597_bclr(r8a66597, ATTCHE, INTENB2);
+
+ /* start usb bus sampling */
+ start_root_hub_sampling(r8a66597, 1);
+ }
+ if (mask2 & DTCH) {
+ r8a66597_write(r8a66597, (u16)~DTCH, INTSTS2);
+ r8a66597_bclr(r8a66597, DTCHE, INTENB2);
+ r8a66597_usb_disconnect(r8a66597, 1);
+ }
+ }
+
+ if (mask1) {
+ if (mask1 & ATTCH) {
+ r8a66597_write(r8a66597, (u16)~ATTCH, INTSTS1);
+ r8a66597_bclr(r8a66597, ATTCHE, INTENB1);
+
+ /* start usb bus sampling */
+ start_root_hub_sampling(r8a66597, 0);
+ }
+ if (mask1 & DTCH) {
+ r8a66597_write(r8a66597, (u16)~DTCH, INTSTS1);
+ r8a66597_bclr(r8a66597, DTCHE, INTENB1);
+ r8a66597_usb_disconnect(r8a66597, 0);
+ }
+ if (mask1 & SIGN) {
+ r8a66597_write(r8a66597, (u16)~SIGN, INTSTS1);
+ set_urb_error(r8a66597, 0);
+ check_next_phase(r8a66597);
+ }
+ if (mask1 & SACK) {
+ r8a66597_write(r8a66597, (u16)~SACK, INTSTS1);
+ check_next_phase(r8a66597);
+ }
+ }
+ if (mask0) {
+ if (mask0 & BRDY)
+ irq_pipe_ready(r8a66597);
+ if (mask0 & BEMP)
+ irq_pipe_empty(r8a66597);
+ if (mask0 & NRDY)
+ irq_pipe_nrdy(r8a66597);
+ }
+
+ spin_unlock(&r8a66597->lock);
+ return IRQ_HANDLED;
+}
+
+/* this function must be called with interrupt disabled */
+static void r8a66597_root_hub_control(struct r8a66597 *r8a66597, int port)
+{
+ u16 tmp;
+ struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
+
+ if (rh->port & (1 << USB_PORT_FEAT_RESET)) {
+ unsigned long dvstctr_reg = get_dvstctr_reg(port);
+
+ tmp = r8a66597_read(r8a66597, dvstctr_reg);
+ if ((tmp & USBRST) == USBRST) {
+ r8a66597_mdfy(r8a66597, UACT, USBRST | UACT,
+ dvstctr_reg);
+ mod_timer(&r8a66597->rh_timer,
+ jiffies + msecs_to_jiffies(50));
+ } else
+ r8a66597_usb_connect(r8a66597, port);
+ }
+
+ if (rh->scount > 0) {
+ tmp = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST;
+ if (tmp == rh->old_syssts) {
+ rh->scount--;
+ if (rh->scount == 0) {
+ if (tmp == FS_JSTS) {
+ r8a66597_bset(r8a66597, HSE,
+ get_syscfg_reg(port));
+ r8a66597_usb_preconnect(r8a66597, port);
+ } else if (tmp == LS_JSTS) {
+ r8a66597_bclr(r8a66597, HSE,
+ get_syscfg_reg(port));
+ r8a66597_usb_preconnect(r8a66597, port);
+ } else if (tmp == SE0)
+ r8a66597_bset(r8a66597, ATTCHE,
+ get_intenb_reg(port));
+ } else {
+ mod_timer(&r8a66597->rh_timer,
+ jiffies + msecs_to_jiffies(50));
+ }
+ } else {
+ rh->scount = R8A66597_MAX_SAMPLING;
+ rh->old_syssts = tmp;
+ mod_timer(&r8a66597->rh_timer,
+ jiffies + msecs_to_jiffies(50));
+ }
+ }
+}
+
+static void r8a66597_td_timer(unsigned long _r8a66597)
+{
+ struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
+ unsigned long flags;
+ u16 pipenum;
+ struct r8a66597_td *td, *new_td = NULL;
+ struct r8a66597_pipe *pipe;
+
+ spin_lock_irqsave(&r8a66597->lock, flags);
+ for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
+ if (!(r8a66597->timeout_map & (1 << pipenum)))
+ continue;
+ if (timer_pending(&r8a66597->td_timer[pipenum]))
+ continue;
+
+ td = r8a66597_get_td(r8a66597, pipenum);
+ if (!td) {
+ r8a66597->timeout_map &= ~(1 << pipenum);
+ continue;
+ }
+
+ if (td->urb->actual_length) {
+ set_td_timer(r8a66597, td);
+ break;
+ }
+
+ pipe = td->pipe;
+ pipe_stop(r8a66597, pipe);
+
+ new_td = td;
+ do {
+ list_move_tail(&new_td->queue,
+ &r8a66597->pipe_queue[pipenum]);
+ new_td = r8a66597_get_td(r8a66597, pipenum);
+ if (!new_td) {
+ new_td = td;
+ break;
+ }
+ } while (td != new_td && td->address == new_td->address);
+
+ start_transfer(r8a66597, new_td);
+
+ if (td == new_td)
+ r8a66597->timeout_map &= ~(1 << pipenum);
+ else
+ set_td_timer(r8a66597, new_td);
+ break;
+ }
+ spin_unlock_irqrestore(&r8a66597->lock, flags);
+}
+
+static void r8a66597_timer(unsigned long _r8a66597)
+{
+ struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
+ unsigned long flags;
+
+ spin_lock_irqsave(&r8a66597->lock, flags);
+
+ r8a66597_root_hub_control(r8a66597, 0);
+ r8a66597_root_hub_control(r8a66597, 1);
+
+ spin_unlock_irqrestore(&r8a66597->lock, flags);
+}
+
+static int check_pipe_config(struct r8a66597 *r8a66597, struct urb *urb)
+{
+ struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
+
+ if (dev && dev->address && dev->state != USB_STATE_CONFIGURED &&
+ (urb->dev->state == USB_STATE_CONFIGURED))
+ return 1;
+ else
+ return 0;
+}
+
+static int r8a66597_start(struct usb_hcd *hcd)
+{
+ struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
+ int ret;
+
+ hcd->state = HC_STATE_RUNNING;
+ if ((ret = enable_controller(r8a66597)) < 0)
+ return ret;
+
+ return 0;
+}
+
+static void r8a66597_stop(struct usb_hcd *hcd)
+{
+ struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
+
+ disable_controller(r8a66597);
+}
+
+static void set_address_zero(struct r8a66597 *r8a66597, struct urb *urb)
+{
+ unsigned int usb_address = usb_pipedevice(urb->pipe);
+ u16 root_port, hub_port;
+
+ if (usb_address == 0) {
+ get_port_number(urb->dev->devpath,
+ &root_port, &hub_port);
+ set_devadd_reg(r8a66597, 0,
+ get_r8a66597_usb_speed(urb->dev->speed),
+ get_parent_r8a66597_address(r8a66597, urb->dev),
+ hub_port, root_port);
+ }
+}
+
+static struct r8a66597_td *r8a66597_make_td(struct r8a66597 *r8a66597,
+ struct urb *urb,
+ struct usb_host_endpoint *hep,
+ gfp_t mem_flags)
+{
+ struct r8a66597_td *td;
+ u16 pipenum;
+
+ td = kzalloc(sizeof(struct r8a66597_td), mem_flags);
+ if (td == NULL)
+ return NULL;
+
+ pipenum = r8a66597_get_pipenum(urb, hep);
+ td->pipenum = pipenum;
+ td->pipe = hep->hcpriv;
+ td->urb = urb;
+ td->address = get_urb_to_r8a66597_addr(r8a66597, urb);
+ td->maxpacket = usb_maxpacket(urb->dev, urb->pipe,
+ !usb_pipein(urb->pipe));
+ if (usb_pipecontrol(urb->pipe))
+ td->type = USB_PID_SETUP;
+ else if (usb_pipein(urb->pipe))
+ td->type = USB_PID_IN;
+ else
+ td->type = USB_PID_OUT;
+ INIT_LIST_HEAD(&td->queue);
+
+ return td;
+}
+
+static int r8a66597_urb_enqueue(struct usb_hcd *hcd,
+ struct usb_host_endpoint *hep,
+ struct urb *urb,
+ gfp_t mem_flags)
+{
+ struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
+ struct r8a66597_td *td = NULL;
+ int ret = 0, request = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&r8a66597->lock, flags);
+ if (!get_urb_to_r8a66597_dev(r8a66597, urb)) {
+ ret = -ENODEV;
+ goto error;
+ }
+
+ if (!hep->hcpriv) {
+ hep->hcpriv = kzalloc(sizeof(struct r8a66597_pipe), mem_flags);
+ if (!hep->hcpriv) {
+ ret = -ENOMEM;
+ goto error;
+ }
+ set_pipe_reg_addr(hep->hcpriv, R8A66597_PIPE_NO_DMA);
+ if (usb_pipeendpoint(urb->pipe))
+ init_pipe_info(r8a66597, urb, hep, &hep->desc);
+ }
+
+ if (unlikely(check_pipe_config(r8a66597, urb)))
+ init_pipe_config(r8a66597, urb);
+
+ set_address_zero(r8a66597, urb);
+ td = r8a66597_make_td(r8a66597, urb, hep, mem_flags);
+ if (td == NULL) {
+ ret = -ENOMEM;
+ goto error;
+ }
+ if (list_empty(&r8a66597->pipe_queue[td->pipenum]))
+ request = 1;
+ list_add_tail(&td->queue, &r8a66597->pipe_queue[td->pipenum]);
+
+ spin_lock(&urb->lock);
+ if (urb->status != -EINPROGRESS) {
+ spin_unlock(&urb->lock);
+ ret = -EPIPE;
+ goto error;
+ }
+ urb->hcpriv = td;
+ spin_unlock(&urb->lock);
+
+ if (request) {
+ ret = start_transfer(r8a66597, td);
+ if (ret < 0) {
+ list_del(&td->queue);
+ kfree(td);
+ }
+ } else
+ set_td_timer(r8a66597, td);
+
+error:
+ spin_unlock_irqrestore(&r8a66597->lock, flags);
+ return ret;
+}
+
+static int r8a66597_urb_dequeue(struct usb_hcd *hcd, struct urb *urb)
+{
+ struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
+ struct r8a66597_td *td;
+ unsigned long flags;
+
+ spin_lock_irqsave(&r8a66597->lock, flags);
+ if (urb->hcpriv) {
+ td = urb->hcpriv;
+ pipe_stop(r8a66597, td->pipe);
+ pipe_irq_disable(r8a66597, td->pipenum);
+ disable_irq_empty(r8a66597, td->pipenum);
+ done(r8a66597, td, td->pipenum, urb);
+ }
+ spin_unlock_irqrestore(&r8a66597->lock, flags);
+ return 0;
+}
+
+static void r8a66597_endpoint_disable(struct usb_hcd *hcd,
+ struct usb_host_endpoint *hep)
+{
+ struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
+ struct r8a66597_pipe *pipe = (struct r8a66597_pipe *)hep->hcpriv;
+ struct r8a66597_td *td;
+ struct urb *urb = NULL;
+ u16 pipenum;
+ unsigned long flags;
+
+ if (pipe == NULL)
+ return;
+ pipenum = pipe->info.pipenum;
+
+ if (pipenum == 0) {
+ kfree(hep->hcpriv);
+ hep->hcpriv = NULL;
+ return;
+ }
+
+ spin_lock_irqsave(&r8a66597->lock, flags);
+ pipe_stop(r8a66597, pipe);
+ pipe_irq_disable(r8a66597, pipenum);
+ disable_irq_empty(r8a66597, pipenum);
+ td = r8a66597_get_td(r8a66597, pipenum);
+ if (td)
+ urb = td->urb;
+ done(r8a66597, td, pipenum, urb);
+ kfree(hep->hcpriv);
+ hep->hcpriv = NULL;
+ spin_unlock_irqrestore(&r8a66597->lock, flags);
+}
+
+static int r8a66597_get_frame(struct usb_hcd *hcd)
+{
+ struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
+ return r8a66597_read(r8a66597, FRMNUM) & 0x03FF;
+}
+
+static void collect_usb_address_map(struct usb_device *udev, unsigned long *map)
+{
+ int chix;
+
+ if (udev->state == USB_STATE_CONFIGURED &&
+ udev->parent && udev->parent->devnum > 1 &&
+ udev->parent->descriptor.bDeviceClass == USB_CLASS_HUB)
+ map[udev->devnum/32] |= (1 << (udev->devnum % 32));
+
+ for (chix = 0; chix < udev->maxchild; chix++) {
+ struct usb_device *childdev = udev->children[chix];
+
+ if (childdev)
+ collect_usb_address_map(childdev, map);
+ }
+}
+
+/* this function must be called with interrupt disabled */
+static struct r8a66597_device *get_r8a66597_device(struct r8a66597 *r8a66597,
+ int addr)
+{
+ struct r8a66597_device *dev;
+ struct list_head *list = &r8a66597->child_device;
+
+ list_for_each_entry(dev, list, device_list) {
+ if (!dev)
+ continue;
+ if (dev->usb_address != addr)
+ continue;
+
+ return dev;
+ }
+
+ err("get_r8a66597_device fail.(%d)\n", addr);
+ return NULL;
+}
+
+static void update_usb_address_map(struct r8a66597 *r8a66597,
+ struct usb_device *root_hub,
+ unsigned long *map)
+{
+ int i, j, addr;
+ unsigned long diff;
+ unsigned long flags;
+
+ for (i = 0; i < 4; i++) {
+ diff = r8a66597->child_connect_map[i] ^ map[i];
+ if (!diff)
+ continue;
+
+ for (j = 0; j < 32; j++) {
+ if (!(diff & (1 << j)))
+ continue;
+
+ addr = i * 32 + j;
+ if (map[i] & (1 << j))
+ set_child_connect_map(r8a66597, addr);
+ else {
+ struct r8a66597_device *dev;
+
+ spin_lock_irqsave(&r8a66597->lock, flags);
+ dev = get_r8a66597_device(r8a66597, addr);
+ disable_r8a66597_pipe_all(r8a66597, dev);
+ free_usb_address(r8a66597, dev);
+ put_child_connect_map(r8a66597, addr);
+ spin_unlock_irqrestore(&r8a66597->lock, flags);
+ }
+ }
+ }
+}
+
+static void r8a66597_check_detect_child(struct r8a66597 *r8a66597,
+ struct usb_hcd *hcd)
+{
+ struct usb_bus *bus;
+ unsigned long now_map[4];
+
+ memset(now_map, 0, sizeof(now_map));
+
+ list_for_each_entry(bus, &usb_bus_list, bus_list) {
+ if (!bus->root_hub)
+ continue;
+
+ if (bus->busnum != hcd->self.busnum)
+ continue;
+
+ collect_usb_address_map(bus->root_hub, now_map);
+ update_usb_address_map(r8a66597, bus->root_hub, now_map);
+ }
+}
+
+static int r8a66597_hub_status_data(struct usb_hcd *hcd, char *buf)
+{
+ struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
+ unsigned long flags;
+ int i;
+
+ r8a66597_check_detect_child(r8a66597, hcd);
+
+ spin_lock_irqsave(&r8a66597->lock, flags);
+
+ *buf = 0; /* initialize (no change) */
+
+ for (i = 0; i < R8A66597_MAX_ROOT_HUB; i++) {
+ if (r8a66597->root_hub[i].port & 0xffff0000)
+ *buf |= 1 << (i + 1);
+ }
+
+ spin_unlock_irqrestore(&r8a66597->lock, flags);
+
+ return (*buf != 0);
+}
+
+static void r8a66597_hub_descriptor(struct r8a66597 *r8a66597,
+ struct usb_hub_descriptor *desc)
+{
+ desc->bDescriptorType = 0x29;
+ desc->bHubContrCurrent = 0;
+ desc->bNbrPorts = R8A66597_MAX_ROOT_HUB;
+ desc->bDescLength = 9;
+ desc->bPwrOn2PwrGood = 0;
+ desc->wHubCharacteristics = cpu_to_le16(0x0011);
+ desc->bitmap[0] = ((1 << R8A66597_MAX_ROOT_HUB) - 1) << 1;
+ desc->bitmap[1] = ~0;
+}
+
+static int r8a66597_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
+ u16 wIndex, char *buf, u16 wLength)
+{
+ struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
+ int ret;
+ int port = (wIndex & 0x00FF) - 1;
+ struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
+ unsigned long flags;
+
+ ret = 0;
+
+ spin_lock_irqsave(&r8a66597->lock, flags);
+ switch (typeReq) {
+ case ClearHubFeature:
+ case SetHubFeature:
+ switch (wValue) {
+ case C_HUB_OVER_CURRENT:
+ case C_HUB_LOCAL_POWER:
+ break;
+ default:
+ goto error;
+ }
+ break;
+ case ClearPortFeature:
+ if (wIndex > R8A66597_MAX_ROOT_HUB)
+ goto error;
+ if (wLength != 0)
+ goto error;
+
+ switch (wValue) {
+ case USB_PORT_FEAT_ENABLE:
+ rh->port &= (1 << USB_PORT_FEAT_POWER);
+ break;
+ case USB_PORT_FEAT_SUSPEND:
+ break;
+ case USB_PORT_FEAT_POWER:
+ r8a66597_port_power(r8a66597, port, 0);
+ break;
+ case USB_PORT_FEAT_C_ENABLE:
+ case USB_PORT_FEAT_C_SUSPEND:
+ case USB_PORT_FEAT_C_CONNECTION:
+ case USB_PORT_FEAT_C_OVER_CURRENT:
+ case USB_PORT_FEAT_C_RESET:
+ break;
+ default:
+ goto error;
+ }
+ rh->port &= ~(1 << wValue);
+ break;
+ case GetHubDescriptor:
+ r8a66597_hub_descriptor(r8a66597,
+ (struct usb_hub_descriptor *)buf);
+ break;
+ case GetHubStatus:
+ *buf = 0x00;
+ break;
+ case GetPortStatus:
+ if (wIndex > R8A66597_MAX_ROOT_HUB)
+ goto error;
+ *(u32 *)buf = rh->port;
+ break;
+ case SetPortFeature:
+ if (wIndex > R8A66597_MAX_ROOT_HUB)
+ goto error;
+ if (wLength != 0)
+ goto error;
+
+ switch (wValue) {
+ case USB_PORT_FEAT_SUSPEND:
+ break;
+ case USB_PORT_FEAT_POWER:
+ r8a66597_port_power(r8a66597, port, 1);
+ rh->port |= (1 << USB_PORT_FEAT_POWER);
+ break;
+ case USB_PORT_FEAT_RESET: {
+ struct r8a66597_device *dev = rh->dev;
+
+ rh->port |= (1 << USB_PORT_FEAT_RESET);
+
+ disable_r8a66597_pipe_all(r8a66597, dev);
+ free_usb_address(r8a66597, dev);
+
+ r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT,
+ get_dvstctr_reg(port));
+ mod_timer(&r8a66597->rh_timer,
+ jiffies + msecs_to_jiffies(50));
+ }
+ break;
+ default:
+ goto error;
+ }
+ rh->port |= 1 << wValue;
+ break;
+ default:
+error:
+ ret = -EPIPE;
+ break;
+ }
+
+ spin_unlock_irqrestore(&r8a66597->lock, flags);
+ return ret;
+}
+
+static struct hc_driver r8a66597_hc_driver = {
+ .description = hcd_name,
+ .hcd_priv_size = sizeof(struct r8a66597),
+ .irq = r8a66597_irq,
+
+ /*
+ * generic hardware linkage
+ */
+ .flags = HCD_USB2,
+
+ .start = r8a66597_start,
+ .stop = r8a66597_stop,
+
+ /*
+ * managing i/o requests and associated device resources
+ */
+ .urb_enqueue = r8a66597_urb_enqueue,
+ .urb_dequeue = r8a66597_urb_dequeue,
+ .endpoint_disable = r8a66597_endpoint_disable,
+
+ /*
+ * periodic schedule support
+ */
+ .get_frame_number = r8a66597_get_frame,
+
+ /*
+ * root hub support
+ */
+ .hub_status_data = r8a66597_hub_status_data,
+ .hub_control = r8a66597_hub_control,
+};
+
+#if defined(CONFIG_PM)
+static int r8a66597_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ pdev->dev.power.power_state = state;
+ return 0;
+}
+
+static int r8a66597_resume(struct platform_device *pdev)
+{
+ pdev->dev.power.power_state = PMSG_ON;
+ return 0;
+}
+#else /* if defined(CONFIG_PM) */
+#define r8a66597_suspend NULL
+#define r8a66597_resume NULL
+#endif
+
+static int __init_or_module r8a66597_remove(struct platform_device *pdev)
+{
+ struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev);
+ struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597);
+
+ del_timer_sync(&r8a66597->rh_timer);
+ iounmap((void *)r8a66597->reg);
+ usb_remove_hcd(hcd);
+ usb_put_hcd(hcd);
+ return 0;
+}
+
+#define resource_len(r) (((r)->end - (r)->start) + 1)
+static int __init r8a66597_probe(struct platform_device *pdev)
+{
+ struct resource *res = NULL;
+ int irq = -1;
+ void __iomem *reg = NULL;
+ struct usb_hcd *hcd = NULL;
+ struct r8a66597 *r8a66597;
+ int ret = 0;
+ int i;
+
+ if (pdev->dev.dma_mask) {
+ ret = -EINVAL;
+ err("dma not support");
+ goto clean_up;
+ }
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+ (char *)hcd_name);
+ if (!res) {
+ ret = -ENODEV;
+ err("platform_get_resource_byname error.");
+ goto clean_up;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ ret = -ENODEV;
+ err("platform_get_irq error.");
+ goto clean_up;
+ }
+
+ reg = ioremap(res->start, resource_len(res));
+ if (reg == NULL) {
+ ret = -ENOMEM;
+ err("ioremap error.");
+ goto clean_up;
+ }
+
+ /* initialize hcd */
+ hcd = usb_create_hcd(&r8a66597_hc_driver, &pdev->dev, (char *)hcd_name);
+ if (!hcd) {
+ ret = -ENOMEM;
+ err("Failed to create hcd");
+ goto clean_up;
+ }
+ r8a66597 = hcd_to_r8a66597(hcd);
+ memset(r8a66597, 0, sizeof(struct r8a66597));
+ dev_set_drvdata(&pdev->dev, r8a66597);
+
+ spin_lock_init(&r8a66597->lock);
+ init_timer(&r8a66597->rh_timer);
+ r8a66597->rh_timer.function = r8a66597_timer;
+ r8a66597->rh_timer.data = (unsigned long)r8a66597;
+ r8a66597->reg = (unsigned long)reg;
+
+ for (i = 0; i < R8A66597_MAX_NUM_PIPE; i++) {
+ INIT_LIST_HEAD(&r8a66597->pipe_queue[i]);
+ init_timer(&r8a66597->td_timer[i]);
+ r8a66597->td_timer[i].function = r8a66597_td_timer;
+ r8a66597->td_timer[i].data = (unsigned long)r8a66597;
+ }
+ INIT_LIST_HEAD(&r8a66597->child_device);
+
+ hcd->rsrc_start = res->start;
+ ret = usb_add_hcd(hcd, irq, 0);
+ if (ret != 0) {
+ err("Failed to add hcd");
+ goto clean_up;
+ }
+
+ return 0;
+
+clean_up:
+ if (reg)
+ iounmap(reg);
+ if (res)
+ release_mem_region(res->start, 1);
+
+ return ret;
+}
+
+static struct platform_driver r8a66597_driver = {
+ .probe = r8a66597_probe,
+ .remove = r8a66597_remove,
+ .suspend = r8a66597_suspend,
+ .resume = r8a66597_resume,
+ .driver = {
+ .name = (char *) hcd_name,
+ },
+};
+
+static int __init r8a66597_init(void)
+{
+ if (usb_disabled())
+ return -ENODEV;
+
+ info("driver %s, %s", hcd_name, DRIVER_VERSION);
+ return platform_driver_register(&r8a66597_driver);
+}
+module_init(r8a66597_init);
+
+static void __exit r8a66597_cleanup(void)
+{
+ platform_driver_unregister(&r8a66597_driver);
+}
+module_exit(r8a66597_cleanup);
+
diff --git a/drivers/usb/host/r8a66597.h b/drivers/usb/host/r8a66597.h
new file mode 100644
index 0000000..97c2a71
--- /dev/null
+++ b/drivers/usb/host/r8a66597.h
@@ -0,0 +1,634 @@
+/*
+ * R8A66597 HCD (Host Controller Driver)
+ *
+ * Copyright (C) 2006-2007 Renesas Solutions Corp.
+ * Portions Copyright (C) 2004 Psion Teklogix (for NetBook PRO)
+ * Portions Copyright (C) 2004-2005 David Brownell
+ * Portions Copyright (C) 1999 Roman Weissgaerber
+ *
+ * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifndef __R8A66597_H__
+#define __R8A66597_H__
+
+#define SYSCFG0 0x00
+#define SYSCFG1 0x02
+#define SYSSTS0 0x04
+#define SYSSTS1 0x06
+#define DVSTCTR0 0x08
+#define DVSTCTR1 0x0A
+#define TESTMODE 0x0C
+#define PINCFG 0x0E
+#define DMA0CFG 0x10
+#define DMA1CFG 0x12
+#define CFIFO 0x14
+#define D0FIFO 0x18
+#define D1FIFO 0x1C
+#define CFIFOSEL 0x20
+#define CFIFOCTR 0x22
+#define CFIFOSIE 0x24
+#define D0FIFOSEL 0x28
+#define D0FIFOCTR 0x2A
+#define D1FIFOSEL 0x2C
+#define D1FIFOCTR 0x2E
+#define INTENB0 0x30
+#define INTENB1 0x32
+#define INTENB2 0x34
+#define BRDYENB 0x36
+#define NRDYENB 0x38
+#define BEMPENB 0x3A
+#define SOFCFG 0x3C
+#define INTSTS0 0x40
+#define INTSTS1 0x42
+#define INTSTS2 0x44
+#define BRDYSTS 0x46
+#define NRDYSTS 0x48
+#define BEMPSTS 0x4A
+#define FRMNUM 0x4C
+#define UFRMNUM 0x4E
+#define USBADDR 0x50
+#define USBREQ 0x54
+#define USBVAL 0x56
+#define USBINDX 0x58
+#define USBLENG 0x5A
+#define DCPCFG 0x5C
+#define DCPMAXP 0x5E
+#define DCPCTR 0x60
+#define PIPESEL 0x64
+#define PIPECFG 0x68
+#define PIPEBUF 0x6A
+#define PIPEMAXP 0x6C
+#define PIPEPERI 0x6E
+#define PIPE1CTR 0x70
+#define PIPE2CTR 0x72
+#define PIPE3CTR 0x74
+#define PIPE4CTR 0x76
+#define PIPE5CTR 0x78
+#define PIPE6CTR 0x7A
+#define PIPE7CTR 0x7C
+#define PIPE8CTR 0x7E
+#define PIPE9CTR 0x80
+#define PIPE1TRE 0x90
+#define PIPE1TRN 0x92
+#define PIPE2TRE 0x94
+#define PIPE2TRN 0x96
+#define PIPE3TRE 0x98
+#define PIPE3TRN 0x9A
+#define PIPE4TRE 0x9C
+#define PIPE4TRN 0x9E
+#define PIPE5TRE 0xA0
+#define PIPE5TRN 0xA2
+#define DEVADD0 0xD0
+#define DEVADD1 0xD2
+#define DEVADD2 0xD4
+#define DEVADD3 0xD6
+#define DEVADD4 0xD8
+#define DEVADD5 0xDA
+#define DEVADD6 0xDC
+#define DEVADD7 0xDE
+#define DEVADD8 0xE0
+#define DEVADD9 0xE2
+#define DEVADDA 0xE4
+
+/* System Configuration Control Register */
+#define XTAL 0xC000 /* b15-14: Crystal selection */
+#define XTAL48 0x8000 /* 48MHz */
+#define XTAL24 0x4000 /* 24MHz */
+#define XTAL12 0x0000 /* 12MHz */
+#define XCKE 0x2000 /* b13: External clock enable */
+#define PLLC 0x0800 /* b11: PLL control */
+#define SCKE 0x0400 /* b10: USB clock enable */
+#define PCSDIS 0x0200 /* b9: not CS wakeup */
+#define LPSME 0x0100 /* b8: Low power sleep mode */
+#define HSE 0x0080 /* b7: Hi-speed enable */
+#define DCFM 0x0040 /* b6: Controller function select */
+#define DRPD 0x0020 /* b5: D+/- pull down control */
+#define DPRPU 0x0010 /* b4: D+ pull up control */
+#define USBE 0x0001 /* b0: USB module operation enable */
+
+/* System Configuration Status Register */
+#define OVCBIT 0x8000 /* b15-14: Over-current bit */
+#define OVCMON 0xC000 /* b15-14: Over-current monitor */
+#define SOFEA 0x0020 /* b5: SOF monitor */
+#define IDMON 0x0004 /* b3: ID-pin monitor */
+#define LNST 0x0003 /* b1-0: D+, D- line status */
+#define SE1 0x0003 /* SE1 */
+#define FS_KSTS 0x0002 /* Full-Speed K State */
+#define FS_JSTS 0x0001 /* Full-Speed J State */
+#define LS_JSTS 0x0002 /* Low-Speed J State */
+#define LS_KSTS 0x0001 /* Low-Speed K State */
+#define SE0 0x0000 /* SE0 */
+
+/* Device State Control Register */
+#define EXTLP0 0x0400 /* b10: External port */
+#define VBOUT 0x0200 /* b9: VBUS output */
+#define WKUP 0x0100 /* b8: Remote wakeup */
+#define RWUPE 0x0080 /* b7: Remote wakeup sense */
+#define USBRST 0x0040 /* b6: USB reset enable */
+#define RESUME 0x0020 /* b5: Resume enable */
+#define UACT 0x0010 /* b4: USB bus enable */
+#define RHST 0x0007 /* b1-0: Reset handshake status */
+#define HSPROC 0x0004 /* HS handshake is processing */
+#define HSMODE 0x0003 /* Hi-Speed mode */
+#define FSMODE 0x0002 /* Full-Speed mode */
+#define LSMODE 0x0001 /* Low-Speed mode */
+#define UNDECID 0x0000 /* Undecided */
+
+/* Test Mode Register */
+#define UTST 0x000F /* b3-0: Test select */
+#define H_TST_PACKET 0x000C /* HOST TEST Packet */
+#define H_TST_SE0_NAK 0x000B /* HOST TEST SE0 NAK */
+#define H_TST_K 0x000A /* HOST TEST K */
+#define H_TST_J 0x0009 /* HOST TEST J */
+#define H_TST_NORMAL 0x0000 /* HOST Normal Mode */
+#define P_TST_PACKET 0x0004 /* PERI TEST Packet */
+#define P_TST_SE0_NAK 0x0003 /* PERI TEST SE0 NAK */
+#define P_TST_K 0x0002 /* PERI TEST K */
+#define P_TST_J 0x0001 /* PERI TEST J */
+#define P_TST_NORMAL 0x0000 /* PERI Normal Mode */
+
+/* Data Pin Configuration Register */
+#define LDRV 0x8000 /* b15: Drive Current Adjust */
+#define VIF1 0x0000 /* VIF = 1.8V */
+#define VIF3 0x8000 /* VIF = 3.3V */
+#define INTA 0x0001 /* b1: USB INT-pin active */
+
+/* DMAx Pin Configuration Register */
+#define DREQA 0x4000 /* b14: Dreq active select */
+#define BURST 0x2000 /* b13: Burst mode */
+#define DACKA 0x0400 /* b10: Dack active select */
+#define DFORM 0x0380 /* b9-7: DMA mode select */
+#define CPU_ADR_RD_WR 0x0000 /* Address + RD/WR mode (CPU bus) */
+#define CPU_DACK_RD_WR 0x0100 /* DACK + RD/WR mode (CPU bus) */
+#define CPU_DACK_ONLY 0x0180 /* DACK only mode (CPU bus) */
+#define SPLIT_DACK_ONLY 0x0200 /* DACK only mode (SPLIT bus) */
+#define DENDA 0x0040 /* b6: Dend active select */
+#define PKTM 0x0020 /* b5: Packet mode */
+#define DENDE 0x0010 /* b4: Dend enable */
+#define OBUS 0x0004 /* b2: OUTbus mode */
+
+/* CFIFO/DxFIFO Port Select Register */
+#define RCNT 0x8000 /* b15: Read count mode */
+#define REW 0x4000 /* b14: Buffer rewind */
+#define DCLRM 0x2000 /* b13: DMA buffer clear mode */
+#define DREQE 0x1000 /* b12: DREQ output enable */
+#define MBW 0x0400 /* b10: Maximum bit width for FIFO access */
+#define MBW_8 0x0000 /* 8bit */
+#define MBW_16 0x0400 /* 16bit */
+#define BIGEND 0x0100 /* b8: Big endian mode */
+#define BYTE_LITTLE 0x0000 /* little dendian */
+#define BYTE_BIG 0x0100 /* big endifan */
+#define ISEL 0x0020 /* b5: DCP FIFO port direction select */
+#define CURPIPE 0x000F /* b2-0: PIPE select */
+
+/* CFIFO/DxFIFO Port Control Register */
+#define BVAL 0x8000 /* b15: Buffer valid flag */
+#define BCLR 0x4000 /* b14: Buffer clear */
+#define FRDY 0x2000 /* b13: FIFO ready */
+#define DTLN 0x0FFF /* b11-0: FIFO received data length */
+
+/* Interrupt Enable Register 0 */
+#define VBSE 0x8000 /* b15: VBUS interrupt */
+#define RSME 0x4000 /* b14: Resume interrupt */
+#define SOFE 0x2000 /* b13: Frame update interrupt */
+#define DVSE 0x1000 /* b12: Device state transition interrupt */
+#define CTRE 0x0800 /* b11: Control transfer stage transition interrupt */
+#define BEMPE 0x0400 /* b10: Buffer empty interrupt */
+#define NRDYE 0x0200 /* b9: Buffer not ready interrupt */
+#define BRDYE 0x0100 /* b8: Buffer ready interrupt */
+
+/* Interrupt Enable Register 1 */
+#define OVRCRE 0x8000 /* b15: Over-current interrupt */
+#define BCHGE 0x4000 /* b14: USB us chenge interrupt */
+#define DTCHE 0x1000 /* b12: Detach sense interrupt */
+#define ATTCHE 0x0800 /* b11: Attach sense interrupt */
+#define EOFERRE 0x0040 /* b6: EOF error interrupt */
+#define SIGNE 0x0020 /* b5: SETUP IGNORE interrupt */
+#define SACKE 0x0010 /* b4: SETUP ACK interrupt */
+
+/* BRDY Interrupt Enable/Status Register */
+#define BRDY9 0x0200 /* b9: PIPE9 */
+#define BRDY8 0x0100 /* b8: PIPE8 */
+#define BRDY7 0x0080 /* b7: PIPE7 */
+#define BRDY6 0x0040 /* b6: PIPE6 */
+#define BRDY5 0x0020 /* b5: PIPE5 */
+#define BRDY4 0x0010 /* b4: PIPE4 */
+#define BRDY3 0x0008 /* b3: PIPE3 */
+#define BRDY2 0x0004 /* b2: PIPE2 */
+#define BRDY1 0x0002 /* b1: PIPE1 */
+#define BRDY0 0x0001 /* b1: PIPE0 */
+
+/* NRDY Interrupt Enable/Status Register */
+#define NRDY9 0x0200 /* b9: PIPE9 */
+#define NRDY8 0x0100 /* b8: PIPE8 */
+#define NRDY7 0x0080 /* b7: PIPE7 */
+#define NRDY6 0x0040 /* b6: PIPE6 */
+#define NRDY5 0x0020 /* b5: PIPE5 */
+#define NRDY4 0x0010 /* b4: PIPE4 */
+#define NRDY3 0x0008 /* b3: PIPE3 */
+#define NRDY2 0x0004 /* b2: PIPE2 */
+#define NRDY1 0x0002 /* b1: PIPE1 */
+#define NRDY0 0x0001 /* b1: PIPE0 */
+
+/* BEMP Interrupt Enable/Status Register */
+#define BEMP9 0x0200 /* b9: PIPE9 */
+#define BEMP8 0x0100 /* b8: PIPE8 */
+#define BEMP7 0x0080 /* b7: PIPE7 */
+#define BEMP6 0x0040 /* b6: PIPE6 */
+#define BEMP5 0x0020 /* b5: PIPE5 */
+#define BEMP4 0x0010 /* b4: PIPE4 */
+#define BEMP3 0x0008 /* b3: PIPE3 */
+#define BEMP2 0x0004 /* b2: PIPE2 */
+#define BEMP1 0x0002 /* b1: PIPE1 */
+#define BEMP0 0x0001 /* b0: PIPE0 */
+
+/* SOF Pin Configuration Register */
+#define TRNENSEL 0x0100 /* b8: Select transaction enable period */
+#define BRDYM 0x0040 /* b6: BRDY clear timing */
+#define INTL 0x0020 /* b5: Interrupt sense select */
+#define EDGESTS 0x0010 /* b4: */
+#define SOFMODE 0x000C /* b3-2: SOF pin select */
+#define SOF_125US 0x0008 /* SOF OUT 125us Frame Signal */
+#define SOF_1MS 0x0004 /* SOF OUT 1ms Frame Signal */
+#define SOF_DISABLE 0x0000 /* SOF OUT Disable */
+
+/* Interrupt Status Register 0 */
+#define VBINT 0x8000 /* b15: VBUS interrupt */
+#define RESM 0x4000 /* b14: Resume interrupt */
+#define SOFR 0x2000 /* b13: SOF frame update interrupt */
+#define DVST 0x1000 /* b12: Device state transition interrupt */
+#define CTRT 0x0800 /* b11: Control transfer stage transition interrupt */
+#define BEMP 0x0400 /* b10: Buffer empty interrupt */
+#define NRDY 0x0200 /* b9: Buffer not ready interrupt */
+#define BRDY 0x0100 /* b8: Buffer ready interrupt */
+#define VBSTS 0x0080 /* b7: VBUS input port */
+#define DVSQ 0x0070 /* b6-4: Device state */
+#define DS_SPD_CNFG 0x0070 /* Suspend Configured */
+#define DS_SPD_ADDR 0x0060 /* Suspend Address */
+#define DS_SPD_DFLT 0x0050 /* Suspend Default */
+#define DS_SPD_POWR 0x0040 /* Suspend Powered */
+#define DS_SUSP 0x0040 /* Suspend */
+#define DS_CNFG 0x0030 /* Configured */
+#define DS_ADDS 0x0020 /* Address */
+#define DS_DFLT 0x0010 /* Default */
+#define DS_POWR 0x0000 /* Powered */
+#define DVSQS 0x0030 /* b5-4: Device state */
+#define VALID 0x0008 /* b3: Setup packet detected flag */
+#define CTSQ 0x0007 /* b2-0: Control transfer stage */
+#define CS_SQER 0x0006 /* Sequence error */
+#define CS_WRND 0x0005 /* Control write nodata status stage */
+#define CS_WRSS 0x0004 /* Control write status stage */
+#define CS_WRDS 0x0003 /* Control write data stage */
+#define CS_RDSS 0x0002 /* Control read status stage */
+#define CS_RDDS 0x0001 /* Control read data stage */
+#define CS_IDST 0x0000 /* Idle or setup stage */
+
+/* Interrupt Status Register 1 */
+#define OVRCR 0x8000 /* b15: Over-current interrupt */
+#define BCHG 0x4000 /* b14: USB bus chenge interrupt */
+#define DTCH 0x1000 /* b12: Detach sense interrupt */
+#define ATTCH 0x0800 /* b11: Attach sense interrupt */
+#define EOFERR 0x0040 /* b6: EOF-error interrupt */
+#define SIGN 0x0020 /* b5: Setup ignore interrupt */
+#define SACK 0x0010 /* b4: Setup acknowledge interrupt */
+
+/* Frame Number Register */
+#define OVRN 0x8000 /* b15: Overrun error */
+#define CRCE 0x4000 /* b14: Received data error */
+#define FRNM 0x07FF /* b10-0: Frame number */
+
+/* Micro Frame Number Register */
+#define UFRNM 0x0007 /* b2-0: Micro frame number */
+
+/* USB Address / Low Power Status Recovery Register */
+//#define USBADDR 0x007F /* b6-0: USB address */
+
+/* Default Control Pipe Maxpacket Size Register */
+/* Pipe Maxpacket Size Register */
+#define DEVSEL 0xF000 /* b15-14: Device address select */
+#define MAXP 0x007F /* b6-0: Maxpacket size of default control pipe */
+
+/* Default Control Pipe Control Register */
+#define BSTS 0x8000 /* b15: Buffer status */
+#define SUREQ 0x4000 /* b14: Send USB request */
+#define CSCLR 0x2000 /* b13: complete-split status clear */
+#define CSSTS 0x1000 /* b12: complete-split status */
+#define SUREQCLR 0x0800 /* b11: stop setup request */
+#define SQCLR 0x0100 /* b8: Sequence toggle bit clear */
+#define SQSET 0x0080 /* b7: Sequence toggle bit set */
+#define SQMON 0x0040 /* b6: Sequence toggle bit monitor */
+#define PBUSY 0x0020 /* b5: pipe busy */
+#define PINGE 0x0010 /* b4: ping enable */
+#define CCPL 0x0004 /* b2: Enable control transfer complete */
+#define PID 0x0003 /* b1-0: Response PID */
+#define PID_STALL11 0x0003 /* STALL */
+#define PID_STALL 0x0002 /* STALL */
+#define PID_BUF 0x0001 /* BUF */
+#define PID_NAK 0x0000 /* NAK */
+
+/* Pipe Window Select Register */
+#define PIPENM 0x0007 /* b2-0: Pipe select */
+
+/* Pipe Configuration Register */
+#define R8A66597_TYP 0xC000 /* b15-14: Transfer type */
+#define R8A66597_ISO 0xC000 /* Isochronous */
+#define R8A66597_INT 0x8000 /* Interrupt */
+#define R8A66597_BULK 0x4000 /* Bulk */
+#define R8A66597_BFRE 0x0400 /* b10: Buffer ready interrupt mode select */
+#define R8A66597_DBLB 0x0200 /* b9: Double buffer mode select */
+#define R8A66597_CNTMD 0x0100 /* b8: Continuous transfer mode select */
+#define R8A66597_SHTNAK 0x0080 /* b7: Transfer end NAK */
+#define R8A66597_DIR 0x0010 /* b4: Transfer direction select */
+#define R8A66597_EPNUM 0x000F /* b3-0: Eendpoint number select */
+
+/* Pipe Buffer Configuration Register */
+#define BUFSIZE 0x7C00 /* b14-10: Pipe buffer size */
+#define BUFNMB 0x007F /* b6-0: Pipe buffer number */
+#define PIPE0BUF 256
+#define PIPExBUF 64
+
+/* Pipe Maxpacket Size Register */
+#define MXPS 0x07FF /* b10-0: Maxpacket size */
+
+/* Pipe Cycle Configuration Register */
+#define IFIS 0x1000 /* b12: Isochronous in-buffer flush mode select */
+#define IITV 0x0007 /* b2-0: Isochronous interval */
+
+/* Pipex Control Register */
+#define BSTS 0x8000 /* b15: Buffer status */
+#define INBUFM 0x4000 /* b14: IN buffer monitor (Only for PIPE1 to 5) */
+#define CSCLR 0x2000 /* b13: complete-split status clear */
+#define CSSTS 0x1000 /* b12: complete-split status */
+#define ATREPM 0x0400 /* b10: Auto repeat mode */
+#define ACLRM 0x0200 /* b9: Out buffer auto clear mode */
+#define SQCLR 0x0100 /* b8: Sequence toggle bit clear */
+#define SQSET 0x0080 /* b7: Sequence toggle bit set */
+#define SQMON 0x0040 /* b6: Sequence toggle bit monitor */
+#define PBUSY 0x0020 /* b5: pipe busy */
+#define PID 0x0003 /* b1-0: Response PID */
+
+/* PIPExTRE */
+#define TRENB 0x0200 /* b9: Transaction counter enable */
+#define TRCLR 0x0100 /* b8: Transaction counter clear */
+
+/* PIPExTRN */
+#define TRNCNT 0xFFFF /* b15-0: Transaction counter */
+
+/* DEVADDx */
+#define UPPHUB 0x7800
+#define HUBPORT 0x0700
+#define USBSPD 0x00C0
+#define RTPORT 0x0001
+
+#define R8A66597_MAX_NUM_PIPE 10
+#define R8A66597_BUF_BSIZE 8
+#define R8A66597_MAX_DEVICE 10
+#define R8A66597_MAX_ROOT_HUB 2
+#define R8A66597_MAX_SAMPLING 10
+#define R8A66597_MAX_DMA_CHANNEL 2
+#define R8A66597_PIPE_NO_DMA R8A66597_MAX_DMA_CHANNEL
+#define check_bulk_or_isoc(pipenum) ((pipenum >= 1 && pipenum <= 5))
+#define check_interrupt(pipenum) ((pipenum >= 6 && pipenum <= 9))
+#define make_devsel(addr) (addr << 12)
+
+struct r8a66597_pipe_info {
+ u16 pipenum;
+ u16 address; /* R8A66597 HCD usb addres */
+ u16 epnum;
+ u16 maxpacket;
+ u16 type;
+ u16 bufnum;
+ u16 buf_bsize;
+ u16 interval;
+ u16 dir_in;
+};
+
+struct r8a66597_pipe {
+ struct r8a66597_pipe_info info;
+
+ unsigned long fifoaddr;
+ unsigned long fifosel;
+ unsigned long fifoctr;
+ unsigned long pipectr;
+ unsigned long pipetre;
+ unsigned long pipetrn;
+};
+
+struct r8a66597_td {
+ struct r8a66597_pipe *pipe;
+ struct urb *urb;
+ struct list_head queue;
+
+ u16 type;
+ u16 pipenum;
+ int iso_cnt;
+
+ u16 address; /* R8A66597's USB address */
+ u16 maxpacket;
+
+ unsigned zero_packet:1;
+ unsigned short_packet:1;
+ unsigned set_address:1;
+};
+
+struct r8a66597_device {
+ u16 address; /* R8A66597's USB address */
+ u16 hub_port;
+ u16 root_port;
+
+ unsigned short ep_in_toggle;
+ unsigned short ep_out_toggle;
+ unsigned char pipe_cnt[R8A66597_MAX_NUM_PIPE];
+ unsigned char dma_map;
+
+ enum usb_device_state state;
+
+ struct usb_device *udev;
+ int usb_address;
+ struct list_head device_list;
+};
+
+struct r8a66597_root_hub {
+ u32 port;
+ u16 old_syssts;
+ int scount;
+
+ struct r8a66597_device *dev;
+};
+
+struct r8a66597 {
+ spinlock_t lock;
+ unsigned long reg;
+
+ struct r8a66597_device device0;
+ struct r8a66597_root_hub root_hub[R8A66597_MAX_ROOT_HUB];
+ struct list_head pipe_queue[R8A66597_MAX_NUM_PIPE];
+
+ struct timer_list rh_timer;
+ struct timer_list td_timer[R8A66597_MAX_NUM_PIPE];
+
+ unsigned short address_map;
+ unsigned short timeout_map;
+ unsigned char pipe_cnt[R8A66597_MAX_NUM_PIPE];
+ unsigned char dma_map;
+
+ struct list_head child_device;
+ unsigned long child_connect_map[4];
+};
+
+static inline struct r8a66597 *hcd_to_r8a66597(struct usb_hcd *hcd)
+{
+ return (struct r8a66597 *)(hcd->hcd_priv);
+}
+
+static inline struct usb_hcd *r8a66597_to_hcd(struct r8a66597 *r8a66597)
+{
+ return container_of((void *)r8a66597, struct usb_hcd, hcd_priv);
+}
+
+static inline struct r8a66597_td *r8a66597_get_td(struct r8a66597 *r8a66597,
+ u16 pipenum)
+{
+ if (unlikely(list_empty(&r8a66597->pipe_queue[pipenum])))
+ return NULL;
+
+ return list_entry(r8a66597->pipe_queue[pipenum].next,
+ struct r8a66597_td, queue);
+}
+
+static inline struct urb *r8a66597_get_urb(struct r8a66597 *r8a66597,
+ u16 pipenum)
+{
+ struct r8a66597_td *td;
+
+ td = r8a66597_get_td(r8a66597, pipenum);
+ return (td ? td->urb : NULL);
+}
+
+static inline u16 r8a66597_read(struct r8a66597 *r8a66597, unsigned long offset)
+{
+ return inw(r8a66597->reg + offset);
+}
+
+static inline void r8a66597_read_fifo(struct r8a66597 *r8a66597,
+ unsigned long offset, u16 *buf,
+ int len)
+{
+ len = (len + 1) / 2;
+ insw(r8a66597->reg + offset, buf, len);
+}
+
+static inline void r8a66597_write(struct r8a66597 *r8a66597, u16 val,
+ unsigned long offset)
+{
+ outw(val, r8a66597->reg + offset);
+}
+
+static inline void r8a66597_write_fifo(struct r8a66597 *r8a66597,
+ unsigned long offset, u16 *buf,
+ int len)
+{
+ unsigned long fifoaddr = r8a66597->reg + offset;
+ int odd = len & 0x0001;
+
+ len = len / 2;
+ outsw(fifoaddr, buf, len);
+ if (unlikely(odd)) {
+ buf = &buf[len];
+ outb((unsigned char)*buf, fifoaddr);
+ }
+}
+
+static inline void r8a66597_mdfy(struct r8a66597 *r8a66597,
+ u16 val, u16 pat, unsigned long offset)
+{
+ u16 tmp;
+ tmp = r8a66597_read(r8a66597, offset);
+ tmp = tmp & (~pat);
+ tmp = tmp | val;
+ r8a66597_write(r8a66597, tmp, offset);
+}
+
+#define r8a66597_bclr(r8a66597, val, offset) \
+ r8a66597_mdfy(r8a66597, 0, val, offset)
+#define r8a66597_bset(r8a66597, val, offset) \
+ r8a66597_mdfy(r8a66597, val, 0, offset)
+
+static inline unsigned long get_syscfg_reg(int port)
+{
+ return port == 0 ? SYSCFG0 : SYSCFG1;
+}
+
+static inline unsigned long get_syssts_reg(int port)
+{
+ return port == 0 ? SYSSTS0 : SYSSTS1;
+}
+
+static inline unsigned long get_dvstctr_reg(int port)
+{
+ return port == 0 ? DVSTCTR0 : DVSTCTR1;
+}
+
+static inline unsigned long get_intenb_reg(int port)
+{
+ return port == 0 ? INTENB1 : INTENB2;
+}
+
+static inline unsigned long get_intsts_reg(int port)
+{
+ return port == 0 ? INTSTS1 : INTSTS2;
+}
+
+static inline u16 get_rh_usb_speed(struct r8a66597 *r8a66597, int port)
+{
+ unsigned long dvstctr_reg = get_dvstctr_reg(port);
+
+ return r8a66597_read(r8a66597, dvstctr_reg) & RHST;
+}
+
+static inline void r8a66597_port_power(struct r8a66597 *r8a66597, int port,
+ int power)
+{
+ unsigned long dvstctr_reg = get_dvstctr_reg(port);
+
+ if (power)
+ r8a66597_bset(r8a66597, VBOUT, dvstctr_reg);
+ else
+ r8a66597_bclr(r8a66597, VBOUT, dvstctr_reg);
+}
+
+#define get_pipectr_addr(pipenum) (PIPE1CTR + (pipenum - 1) * 2)
+#define get_pipetre_addr(pipenum) (PIPE1TRE + (pipenum - 1) * 4)
+#define get_pipetrn_addr(pipenum) (PIPE1TRN + (pipenum - 1) * 4)
+#define get_devadd_addr(address) (DEVADD0 + address * 2)
+
+#define enable_irq_ready(r8a66597, pipenum) \
+ enable_pipe_irq(r8a66597, pipenum, BRDYENB)
+#define disable_irq_ready(r8a66597, pipenum) \
+ disable_pipe_irq(r8a66597, pipenum, BRDYENB)
+#define enable_irq_empty(r8a66597, pipenum) \
+ enable_pipe_irq(r8a66597, pipenum, BEMPENB)
+#define disable_irq_empty(r8a66597, pipenum) \
+ disable_pipe_irq(r8a66597, pipenum, BEMPENB)
+#define enable_irq_nrdy(r8a66597, pipenum) \
+ enable_pipe_irq(r8a66597, pipenum, NRDYENB)
+#define disable_irq_nrdy(r8a66597, pipenum) \
+ disable_pipe_irq(r8a66597, pipenum, NRDYENB)
+
+#endif /* __R8A66597_H__ */
+