--- /dev/null
+/*
+ * HCD driver for ADM5120 SoC
+ *
+ * Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org)
+ *
+ * Based on the ADMtek 2.4 driver
+ * (C) Copyright 2003 Junius Chen <juniusc@admtek.com.tw>
+ * Which again was based on the ohci and uhci drivers.
+ */
+
+#include <linux/autoconf.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/usb.h>
+#include <linux/platform_device.h>
+
+#include "../core/hcd.h"
+
+MODULE_DESCRIPTION("ADM5120 USB Host Controller Driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Jeroen Vreeken (pe1rxq@amsat.org)");
+
+#define ADMHCD_REG_CONTROL 0x00
+#define ADMHCD_REG_INTSTATUS 0x04
+#define ADMHCD_REG_INTENABLE 0x08
+#define ADMHCD_REG_HOSTCONTROL 0x10
+#define ADMHCD_REG_FMINTERVAL 0x18
+#define ADMHCD_REG_FMNUMBER 0x1c
+#define ADMHCD_REG_LSTHRESH 0x70
+#define ADMHCD_REG_RHDESCR 0x74
+#define ADMHCD_REG_PORTSTATUS0 0x78
+#define ADMHCD_REG_PORTSTATUS1 0x7c
+#define ADMHCD_REG_HOSTHEAD 0x80
+
+
+#define ADMHCD_NUMPORTS 2
+
+#define ADMHCD_HOST_EN 0x00000001 /* Host enable */
+#define ADMHCD_SW_INTREQ 0x00000002 /* request software int */
+#define ADMHCD_SW_RESET 0x00000008 /* Reset */
+
+#define ADMHCD_INT_TD 0x00100000 /* TD completed */
+#define ADMHCD_INT_SW 0x20000000 /* software interrupt */
+#define ADMHCD_INT_FATAL 0x40000000 /* Fatal interrupt */
+#define ADMHCD_INT_ACT 0x80000000 /* Interrupt active */
+
+#define ADMHCD_STATE_RST 0x00000000 /* bus state reset */
+#define ADMHCD_STATE_RES 0x00000001 /* bus state resume */
+#define ADMHCD_STATE_OP 0x00000002 /* bus state operational */
+#define ADMHCD_STATE_SUS 0x00000003 /* bus state suspended */
+#define ADMHCD_DMA_EN 0x00000004 /* enable dma engine */
+
+#define ADMHCD_NPS 0x00000020 /* No Power Switch */
+#define ADMHCD_LPSC 0x04000000 /* Local power switch change */
+
+#define ADMHCD_CCS 0x00000001 /* current connect status */
+#define ADMHCD_PES 0x00000002 /* port enable status */
+#define ADMHCD_PSS 0x00000004 /* port suspend status */
+#define ADMHCD_POCI 0x00000008 /* port overcurrent indicator */
+#define ADMHCD_PRS 0x00000010 /* port reset status */
+#define ADMHCD_PPS 0x00000100 /* port power status */
+#define ADMHCD_LSDA 0x00000200 /* low speed device attached */
+#define ADMHCD_CSC 0x00010000 /* connect status change */
+#define ADMHCD_PESC 0x00020000 /* enable status change */
+#define ADMHCD_PSSC 0x00040000 /* suspend status change */
+#define ADMHCD_OCIC 0x00080000 /* overcurrent change*/
+#define ADMHCD_PRSC 0x00100000 /* reset status change */
+
+
+struct admhcd_ed {
+ /* Don't change first four, they used for DMA */
+ u32 control;
+ struct admhcd_td *tail;
+ struct admhcd_td *head;
+ struct admhcd_ed *next;
+ /* the rest is for the driver only: */
+ struct admhcd_td *cur;
+ struct usb_host_endpoint *ep;
+ struct urb *urb;
+ struct admhcd_ed *real;
+} __attribute__ ((packed));
+
+#define ADMHCD_ED_EPSHIFT 7 /* Shift for endpoint number */
+#define ADMHCD_ED_INT 0x00000800 /* Is this an int endpoint */
+#define ADMHCD_ED_SPEED 0x00002000 /* Is it a high speed dev? */
+#define ADMHCD_ED_SKIP 0x00004000 /* Skip this ED */
+#define ADMHCD_ED_FORMAT 0x00008000 /* Is this an isoc endpoint */
+#define ADMHCD_ED_MAXSHIFT 16 /* Shift for max packet size */
+
+struct admhcd_td {
+ /* Don't change first four, they are used for DMA */
+ u32 control;
+ u32 buffer;
+ u32 buflen;
+ struct admhcd_td *next;
+ /* the rest is for the driver only: */
+ struct urb *urb;
+ struct admhcd_td *real;
+} __attribute__ ((packed));
+
+#define ADMHCD_TD_OWN 0x80000000
+#define ADMHCD_TD_TOGGLE 0x00000000
+#define ADMHCD_TD_DATA0 0x01000000
+#define ADMHCD_TD_DATA1 0x01800000
+#define ADMHCD_TD_OUT 0x00200000
+#define ADMHCD_TD_IN 0x00400000
+#define ADMHCD_TD_SETUP 0x00000000
+#define ADMHCD_TD_ISO 0x00010000
+#define ADMHCD_TD_R 0x00040000
+#define ADMHCD_TD_INTEN 0x00010000
+
+static int admhcd_td_err[16] = {
+ 0, /* No */
+ -EREMOTEIO, /* CRC */
+ -EREMOTEIO, /* bit stuff */
+ -EREMOTEIO, /* data toggle */
+ -EPIPE, /* stall */
+ -ETIMEDOUT, /* timeout */
+ -EPROTO, /* pid err */
+ -EPROTO, /* unexpected pid */
+ -EREMOTEIO, /* data overrun */
+ -EREMOTEIO, /* data underrun */
+ -ETIMEDOUT, /* 1010 */
+ -ETIMEDOUT, /* 1011 */
+ -EREMOTEIO, /* buffer overrun */
+ -EREMOTEIO, /* buffer underrun */
+ -ETIMEDOUT, /* 1110 */
+ -ETIMEDOUT, /* 1111 */
+};
+
+#define ADMHCD_TD_ERRMASK 0x38000000
+#define ADMHCD_TD_ERRSHIFT 27
+
+#define TD(td) ((struct admhcd_td *)(((u32)(td)) & ~0xf))
+#define ED(ed) ((struct admhcd_ed *)(((u32)(ed)) & ~0xf))
+
+struct admhcd {
+ u32 base;
+ u32 dma_en;
+ spinlock_t lock;
+ unsigned long flags;
+};
+
+#define hcd_to_admhcd(hcd) ((struct admhcd *)(hcd)->hcd_priv)
+
+static char hcd_name[] = "adm5120-hcd";
+
+static u32 admhcd_reg_get(struct admhcd *ahcd, int reg)
+{
+ return *(volatile u32 *)KSEG1ADDR(ahcd->base+reg);
+}
+
+static void admhcd_reg_set(struct admhcd *ahcd, int reg, u32 val)
+{
+ *(volatile u32 *)KSEG1ADDR(ahcd->base+reg) = val;
+}
+
+static void admhcd_lock(struct admhcd *ahcd)
+{
+ spin_lock_irqsave(&ahcd->lock, ahcd->flags);
+ ahcd->dma_en = admhcd_reg_get(ahcd, ADMHCD_REG_HOSTCONTROL) &
+ ADMHCD_DMA_EN;
+ admhcd_reg_set(ahcd, ADMHCD_REG_HOSTCONTROL, ADMHCD_STATE_OP);
+}
+
+static void admhcd_unlock(struct admhcd *ahcd)
+{
+ admhcd_reg_set(ahcd, ADMHCD_REG_HOSTCONTROL,
+ ADMHCD_STATE_OP | ahcd->dma_en);
+ spin_unlock_irqrestore(&ahcd->lock, ahcd->flags);
+}
+
+static struct admhcd_td *admhcd_td_alloc(struct admhcd_ed *ed, struct urb *urb)
+{
+ struct admhcd_td *tdn, *td;
+
+ tdn = kmalloc(sizeof(struct admhcd_td), GFP_ATOMIC);
+ if (!tdn)
+ return NULL;
+ tdn->real = tdn;
+ tdn = (struct admhcd_td *)KSEG1ADDR(tdn);
+ memset(tdn, 0, sizeof(struct admhcd_td));
+ if (ed->cur == NULL) {
+ ed->cur = tdn;
+ ed->head = tdn;
+ ed->tail = tdn;
+ td = tdn;
+ } else {
+ /* Supply back the old tail and link in new td as tail */
+ td = TD(ed->tail);
+ TD(ed->tail)->next = tdn;
+ ed->tail = tdn;
+ }
+ td->urb = urb;
+
+ return td;
+}
+
+static void admhcd_td_free(struct admhcd_ed *ed, struct urb *urb)
+{
+ struct admhcd_td *td, **tdp;
+
+ if (urb == NULL)
+ ed->control |= ADMHCD_ED_SKIP;
+ tdp = &ed->cur;
+ td = ed->cur;
+ do {
+ if (td->urb == urb)
+ break;
+ tdp = &td->next;
+ td = TD(td->next);
+ } while (td);
+ while (td && td->urb == urb) {
+ *tdp = TD(td->next);
+ kfree(td->real);
+ td = *tdp;
+ }
+}
+
+/* Find an endpoint's descriptor, if needed allocate a new one and link it
+ in the DMA chain
+ */
+static struct admhcd_ed *admhcd_get_ed(struct admhcd *ahcd,
+ struct usb_host_endpoint *ep, struct urb *urb)
+{
+ struct admhcd_ed *hosthead;
+ struct admhcd_ed *found = NULL, *ed = NULL;
+ unsigned int pipe = urb->pipe;
+
+ admhcd_lock(ahcd);
+ hosthead = (struct admhcd_ed *)admhcd_reg_get(ahcd, ADMHCD_REG_HOSTHEAD);
+ if (hosthead) {
+ for (ed = hosthead;; ed = ED(ed->next)) {
+ if (ed->ep == ep) {
+ found = ed;
+ break;
+ }
+ if (ED(ed->next) == hosthead)
+ break;
+ }
+ }
+ if (!found) {
+ found = kmalloc(sizeof(struct admhcd_ed), GFP_ATOMIC);
+ if (!found)
+ goto out;
+ memset(found, 0, sizeof(struct admhcd_ed));
+ found->real = found;
+ found->ep = ep;
+ found = (struct admhcd_ed *)KSEG1ADDR(found);
+ found->control = usb_pipedevice(pipe) |
+ (usb_pipeendpoint(pipe) << ADMHCD_ED_EPSHIFT) |
+ (usb_pipeint(pipe) ? ADMHCD_ED_INT : 0) |
+ (urb->dev->speed == USB_SPEED_FULL ? ADMHCD_ED_SPEED : 0) |
+ (usb_pipeisoc(pipe) ? ADMHCD_ED_FORMAT : 0) |
+ (usb_maxpacket(urb->dev, pipe, usb_pipeout(pipe)) << ADMHCD_ED_MAXSHIFT);
+ /* Alloc first dummy td */
+ admhcd_td_alloc(found, NULL);
+ if (hosthead) {
+ found->next = hosthead;
+ ed->next = found;
+ } else {
+ found->next = found;
+ admhcd_reg_set(ahcd, ADMHCD_REG_HOSTHEAD, (u32)found);
+ }
+ }
+out:
+ admhcd_unlock(ahcd);
+ return found;
+}
+
+static struct admhcd_td *admhcd_td_fill(u32 control, struct admhcd_td *td,
+ dma_addr_t data, int len)
+{
+ td->buffer = data;
+ td->buflen = len;
+ td->control = control;
+ return TD(td->next);
+}
+
+static void admhcd_ed_start(struct admhcd *ahcd, struct admhcd_ed *ed)
+{
+ struct admhcd_td *td = ed->cur;
+
+ if (ed->urb)
+ return;
+ if (td->urb) {
+ ed->urb = td->urb;
+ while (1) {
+ td->control |= ADMHCD_TD_OWN;
+ if (TD(td->next)->urb != td->urb) {
+ td->buflen |= ADMHCD_TD_INTEN;
+ break;
+ }
+ td = TD(td->next);
+ }
+ }
+ ed->head = TD(ed->head);
+ ahcd->dma_en |= ADMHCD_DMA_EN;
+}
+
+static irqreturn_t adm5120hcd_irq(int irq, void *ptr, struct pt_regs *regs)
+{
+ struct usb_hcd *hcd = (struct usb_hcd *)ptr;
+ struct admhcd *ahcd = hcd_to_admhcd(hcd);
+ u32 intstatus;
+
+ intstatus = admhcd_reg_get(ahcd, ADMHCD_REG_INTSTATUS);
+ if (intstatus & ADMHCD_INT_FATAL) {
+ admhcd_reg_set(ahcd, ADMHCD_REG_INTSTATUS, ADMHCD_INT_FATAL);
+ //
+ }
+ if (intstatus & ADMHCD_INT_SW) {
+ admhcd_reg_set(ahcd, ADMHCD_REG_INTSTATUS, ADMHCD_INT_SW);
+ //
+ }
+ if (intstatus & ADMHCD_INT_TD) {
+ struct admhcd_ed *ed, *head;
+
+ admhcd_reg_set(ahcd, ADMHCD_REG_INTSTATUS, ADMHCD_INT_TD);
+
+ head = (struct admhcd_ed *)admhcd_reg_get(ahcd, ADMHCD_REG_HOSTHEAD);
+ ed = head;
+ if (ed) do {
+ /* Is it a finished TD? */
+ if (ed->urb && !(ed->cur->control & ADMHCD_TD_OWN)) {
+ struct admhcd_td *td;
+ int error;
+
+ td = ed->cur;
+ error = (td->control & ADMHCD_TD_ERRMASK) >>
+ ADMHCD_TD_ERRSHIFT;
+ ed->urb->status = admhcd_td_err[error];
+ admhcd_td_free(ed, ed->urb);
+ // Calculate real length!!!
+ ed->urb->actual_length = ed->urb->transfer_buffer_length;
+ ed->urb->hcpriv = NULL;
+ usb_hcd_giveback_urb(hcd, ed->urb);
+ ed->urb = NULL;
+ }
+ admhcd_ed_start(ahcd, ed);
+ ed = ED(ed->next);
+ } while (ed != head);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int admhcd_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep,
+ struct urb *urb, int mem_flags)
+{
+ struct admhcd *ahcd = hcd_to_admhcd(hcd);
+ struct admhcd_ed *ed;
+ struct admhcd_td *td;
+ int size = 0, i, zero = 0, ret = 0;
+ unsigned int pipe = urb->pipe, toggle = 0;
+ dma_addr_t data = (dma_addr_t)urb->transfer_buffer;
+ int data_len = urb->transfer_buffer_length;
+
+ ed = admhcd_get_ed(ahcd, ep, urb);
+ if (!ed)
+ return -ENOMEM;
+
+ switch(usb_pipetype(pipe)) {
+ case PIPE_CONTROL:
+ size = 2;
+ case PIPE_INTERRUPT:
+ case PIPE_BULK:
+ default:
+ size += urb->transfer_buffer_length / 4096;
+ if (urb->transfer_buffer_length % 4096)
+ size++;
+ if (size == 0)
+ size++;
+ else if (urb->transfer_flags & URB_ZERO_PACKET &&
+ !(urb->transfer_buffer_length %
+ usb_maxpacket(urb->dev, pipe, usb_pipeout(pipe)))) {
+ size++;
+ zero = 1;
+ }
+ break;
+ case PIPE_ISOCHRONOUS:
+ size = urb->number_of_packets;
+ break;
+ }
+
+ admhcd_lock(ahcd);
+ /* Remember the first td */
+ td = admhcd_td_alloc(ed, urb);
+ if (!td) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ /* Allocate additionall tds first */
+ for (i = 1; i < size; i++) {
+ if (admhcd_td_alloc(ed, urb) == NULL) {
+ admhcd_td_free(ed, urb);
+ ret = -ENOMEM;
+ goto out;
+ }
+ }
+
+ if (usb_gettoggle(urb->dev, usb_pipeendpoint(pipe), usb_pipeout(pipe)))
+ toggle = ADMHCD_TD_TOGGLE;
+ else {
+ toggle = ADMHCD_TD_DATA0;
+ usb_settoggle(urb->dev, usb_pipeendpoint(pipe),
+ usb_pipeout(pipe), 1);
+ }
+
+ switch(usb_pipetype(pipe)) {
+ case PIPE_CONTROL:
+ td = admhcd_td_fill(ADMHCD_TD_SETUP | ADMHCD_TD_DATA0,
+ td, (dma_addr_t)urb->setup_packet, 8);
+ while (data_len > 0) {
+ td = admhcd_td_fill(ADMHCD_TD_DATA1
+ | ADMHCD_TD_R |
+ (usb_pipeout(pipe) ?
+ ADMHCD_TD_OUT : ADMHCD_TD_IN), td,
+ data, data_len % 4097);
+ data_len -= 4096;
+ }
+ admhcd_td_fill(ADMHCD_TD_DATA1 | (usb_pipeout(pipe) ?
+ ADMHCD_TD_IN : ADMHCD_TD_OUT), td,
+ data, 0);
+ break;
+ case PIPE_INTERRUPT:
+ case PIPE_BULK:
+ //info ok for interrupt?
+ i = 0;
+ while(data_len > 4096) {
+ td = admhcd_td_fill((usb_pipeout(pipe) ?
+ ADMHCD_TD_OUT :
+ ADMHCD_TD_IN | ADMHCD_TD_R) |
+ (i ? ADMHCD_TD_TOGGLE : toggle), td,
+ data, 4096);
+ data += 4096;
+ data_len -= 4096;
+ i++;
+ }
+ td = admhcd_td_fill((usb_pipeout(pipe) ?
+ ADMHCD_TD_OUT : ADMHCD_TD_IN) |
+ (i ? ADMHCD_TD_TOGGLE : toggle), td, data, data_len);
+ i++;
+ if (zero)
+ admhcd_td_fill((usb_pipeout(pipe) ?
+ ADMHCD_TD_OUT : ADMHCD_TD_IN) |
+ (i ? ADMHCD_TD_TOGGLE : toggle), td, 0, 0);
+ break;
+ case PIPE_ISOCHRONOUS:
+ for (i = 0; i < urb->number_of_packets; i++) {
+ td = admhcd_td_fill(ADMHCD_TD_ISO |
+ ((urb->start_frame + i) & 0xffff), td,
+ data + urb->iso_frame_desc[i].offset,
+ urb->iso_frame_desc[i].length);
+ }
+ break;
+ }
+ urb->hcpriv = ed;
+ admhcd_ed_start(ahcd, ed);
+out:
+ admhcd_unlock(ahcd);
+ return ret;
+}
+
+static int admhcd_urb_dequeue(struct usb_hcd *hcd, struct urb *urb)
+{
+ struct admhcd *ahcd = hcd_to_admhcd(hcd);
+ struct admhcd_ed *ed;
+
+ admhcd_lock(ahcd);
+
+ ed = urb->hcpriv;
+ if (ed && ed->urb != urb)
+ admhcd_td_free(ed, urb);
+
+ admhcd_unlock(ahcd);
+ return 0;
+}
+
+static void admhcd_endpoint_disable(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
+{
+ struct admhcd *ahcd = hcd_to_admhcd(hcd);
+ struct admhcd_ed *ed, *edt, *head;
+
+ admhcd_lock(ahcd);
+
+ head = (struct admhcd_ed *)admhcd_reg_get(ahcd, ADMHCD_REG_HOSTHEAD);
+ if (!head)
+ goto out;
+ for (ed = head; ED(ed->next) != head; ed = ED(ed->next))
+ if (ed->ep == ep)
+ break;
+ if (ed->ep != ep)
+ goto out;
+ while (ed->cur)
+ admhcd_td_free(ed, ed->cur->urb);
+ if (head == ed) {
+ if (ED(ed->next) == ed) {
+ admhcd_reg_set(ahcd, ADMHCD_REG_HOSTHEAD, 0);
+ ahcd->dma_en = 0;
+ goto out_free;
+ }
+ head = ED(ed->next);
+ for (edt = head; ED(edt->next) != head; edt = ED(edt->next));
+ edt->next = ED(ed->next);
+ admhcd_reg_set(ahcd, ADMHCD_REG_HOSTHEAD, (u32)ed->next);
+ goto out_free;
+ }
+ for (edt = head; edt->next != ed; edt = edt->next);
+ edt->next = ed->next;
+out_free:
+ kfree(ed->real);
+out:
+ admhcd_unlock(ahcd);
+}
+
+static int admhcd_get_frame_number(struct usb_hcd *hcd)
+{
+ struct admhcd *ahcd = hcd_to_admhcd(hcd);
+
+ return admhcd_reg_get(ahcd, ADMHCD_REG_FMNUMBER) & 0x0000ffff;
+}
+
+static int admhcd_hub_status_data(struct usb_hcd *hcd, char *buf)
+{
+ struct admhcd *ahcd = hcd_to_admhcd(hcd);
+ int port;
+
+ *buf = 0;
+ for (port = 0; port < ADMHCD_NUMPORTS; port++) {
+ if (admhcd_reg_get(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4) &
+ (ADMHCD_CSC | ADMHCD_PESC | ADMHCD_PSSC | ADMHCD_OCIC |
+ ADMHCD_PRSC))
+ *buf |= (1 << (port + 1));
+ }
+ return !!*buf;
+}
+
+static __u8 root_hub_hub_des[] = {
+ 0x09, /* __u8 bLength; */
+ 0x29, /* __u8 bDescriptorType; Hub-descriptor */
+ 0x02, /* __u8 bNbrPorts; */
+ 0x0a, 0x00, /* __u16 wHubCharacteristics; */
+ 0x01, /* __u8 bPwrOn2pwrGood; 2ms */
+ 0x00, /* __u8 bHubContrCurrent; 0mA */
+ 0x00, /* __u8 DeviceRemovable; */
+ 0xff, /* __u8 PortPwrCtrlMask; */
+};
+
+static int admhcd_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
+ u16 wIndex, char *buf, u16 wLength)
+{
+ struct admhcd *ahcd = hcd_to_admhcd(hcd);
+ int retval = 0, len;
+ unsigned int port = wIndex -1;
+
+ switch (typeReq) {
+
+ case GetHubStatus:
+ *(__le32 *)buf = cpu_to_le32(0);
+ break;
+ case GetPortStatus:
+ if (port >= ADMHCD_NUMPORTS)
+ goto err;
+ *(__le32 *)buf = cpu_to_le32(
+ admhcd_reg_get(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4));
+ break;
+ case SetHubFeature: /* We don't implement these */
+ case ClearHubFeature:
+ switch (wValue) {
+ case C_HUB_OVER_CURRENT:
+ case C_HUB_LOCAL_POWER:
+ break;
+ default:
+ goto err;
+ }
+ case SetPortFeature:
+ if (port >= ADMHCD_NUMPORTS)
+ goto err;
+
+ switch (wValue) {
+ case USB_PORT_FEAT_SUSPEND:
+ admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
+ ADMHCD_PSS);
+ break;
+ case USB_PORT_FEAT_RESET:
+ if (admhcd_reg_get(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4)
+ & ADMHCD_CCS) {
+ admhcd_reg_set(ahcd,
+ ADMHCD_REG_PORTSTATUS0 + port*4,
+ ADMHCD_PRS | ADMHCD_CSC);
+ mdelay(50);
+ admhcd_reg_set(ahcd,
+ ADMHCD_REG_PORTSTATUS0 + port*4,
+ ADMHCD_PES | ADMHCD_CSC);
+ }
+ break;
+ case USB_PORT_FEAT_POWER:
+ admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
+ ADMHCD_PPS);
+ break;
+ default:
+ goto err;
+ }
+ break;
+ case ClearPortFeature:
+ if (port >= ADMHCD_NUMPORTS)
+ goto err;
+
+ switch (wValue) {
+ case USB_PORT_FEAT_ENABLE:
+ admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
+ ADMHCD_CCS);
+ break;
+ case USB_PORT_FEAT_C_ENABLE:
+ admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
+ ADMHCD_PESC);
+ break;
+ case USB_PORT_FEAT_SUSPEND:
+ admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
+ ADMHCD_POCI);
+ break;
+ case USB_PORT_FEAT_C_SUSPEND:
+ admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
+ ADMHCD_PSSC);
+ case USB_PORT_FEAT_POWER:
+ admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
+ ADMHCD_LSDA);
+ break;
+ case USB_PORT_FEAT_C_CONNECTION:
+ admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
+ ADMHCD_CSC);
+ break;
+ case USB_PORT_FEAT_C_OVER_CURRENT:
+ admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
+ ADMHCD_OCIC);
+ break;
+ case USB_PORT_FEAT_C_RESET:
+ admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
+ ADMHCD_PRSC);
+ break;
+ default:
+ goto err;
+ }
+ break;
+ case GetHubDescriptor:
+ len = min_t(unsigned int, sizeof(root_hub_hub_des), wLength);
+ memcpy(buf, root_hub_hub_des, len);
+ break;
+ default:
+err:
+ retval = -EPIPE;
+ }
+
+ return retval;
+}
+
+static struct hc_driver adm5120_hc_driver = {
+ .description = hcd_name,
+ .product_desc = "ADM5120 HCD",
+ .hcd_priv_size = sizeof(struct admhcd),
+ .flags = HCD_USB11,
+ .urb_enqueue = admhcd_urb_enqueue,
+ .urb_dequeue = admhcd_urb_dequeue,
+ .endpoint_disable = admhcd_endpoint_disable,
+ .get_frame_number = admhcd_get_frame_number,
+ .hub_status_data = admhcd_hub_status_data,
+ .hub_control = admhcd_hub_control,
+};
+
+static int __init adm5120hcd_probe(struct platform_device *pdev)
+{
+ struct usb_hcd *hcd;
+ struct admhcd *ahcd;
+ struct usb_device *udev;
+ int err = 0;
+
+ if (!request_mem_region(pdev->resource[0].start,
+ pdev->resource[0].end - pdev->resource[0].start, hcd_name)) {
+ pr_debug("couldn't request mem\n");
+ err = -EBUSY;
+ goto out;
+ }
+
+ //hcd = usb_create_hcd(&adm5120_hc_driver, pdev, pdev->bus_id);
+ if (!hcd)
+ goto out_mem;
+
+ ahcd = hcd_to_admhcd(hcd);
+ dev_set_drvdata(pdev, ahcd);
+ hcd->self.controller = pdev;
+ //hcd->self.bus_name = pdev->bus_id;
+ hcd->irq = pdev->resource[1].start;
+ hcd->regs = (void *)pdev->resource[0].start;
+ hcd->product_desc = hcd_name;
+ ahcd->base = pdev->resource[0].start;
+
+ if (request_irq(pdev->resource[1].start, adm5120hcd_irq, 0, hcd_name,
+ hcd)) {
+ pr_debug("couldn't request irq\n");
+ err = -EBUSY;
+ goto out_hcd;
+ }
+
+ //err = usb_register_bus(&hcd->self);
+ //if (err < 0)
+ // goto out_irq;
+
+ spin_lock_init(&ahcd->lock);
+
+ admhcd_reg_set(ahcd, ADMHCD_REG_INTENABLE, 0);
+ mdelay(10);
+ admhcd_reg_set(ahcd, ADMHCD_REG_CONTROL, ADMHCD_SW_RESET);
+ while (admhcd_reg_get(ahcd, ADMHCD_REG_CONTROL) & ADMHCD_SW_RESET)
+ mdelay(1);
+
+ admhcd_reg_set(ahcd, ADMHCD_REG_CONTROL, ADMHCD_HOST_EN);
+ admhcd_reg_set(ahcd, ADMHCD_REG_HOSTHEAD, 0x00000000);
+ admhcd_reg_set(ahcd, ADMHCD_REG_FMINTERVAL, 0x20002edf);
+ admhcd_reg_set(ahcd, ADMHCD_REG_LSTHRESH, 0x628);
+ admhcd_reg_set(ahcd, ADMHCD_REG_INTENABLE,
+ ADMHCD_INT_ACT | ADMHCD_INT_FATAL | ADMHCD_INT_SW | ADMHCD_INT_TD);
+ admhcd_reg_set(ahcd, ADMHCD_REG_INTSTATUS,
+ ADMHCD_INT_ACT | ADMHCD_INT_FATAL | ADMHCD_INT_SW | ADMHCD_INT_TD);
+ admhcd_reg_set(ahcd, ADMHCD_REG_RHDESCR, ADMHCD_NPS | ADMHCD_LPSC);
+ admhcd_reg_set(ahcd, ADMHCD_REG_HOSTCONTROL, ADMHCD_STATE_OP);
+
+ udev = usb_alloc_dev(NULL, &hcd->self, 0);
+ if (!udev) {
+ err = -ENOMEM;
+ goto out_bus;
+ }
+
+ udev->speed = USB_SPEED_FULL;
+ hcd->state = HC_STATE_RUNNING;
+
+ //err = hcd_register_root(udev, hcd);
+ //if (err != 0) {
+ // usb_put_dev(udev);
+ // goto out_dev;
+ //}
+
+ return 0;
+
+out_dev:
+ usb_put_dev(udev);
+out_bus:
+ //usb_deregister_bus(&hcd->self);
+out_irq:
+ free_irq(pdev->resource[1].start, hcd);
+out_hcd:
+ usb_put_hcd(hcd);
+out_mem:
+ release_mem_region(pdev->resource[0].start,
+ pdev->resource[0].end - pdev->resource[0].start);
+out:
+ return err;
+}
+
+static int __init_or_module adm5120hcd_remove(struct platform_device *pdev)
+{
+ device_init_wakeup(&pdev->dev, 0);
+}
+
+static struct platform_driver adm5120hcd_driver = {
+ .probe = adm5120hcd_probe,
+ .remove = adm5120hcd_remove,
+ .driver = {
+ .name = "adm5120-hcd",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init adm5120hcd_init(void)
+{
+ if (usb_disabled())
+ return -ENODEV;
+
+ return platform_driver_register(&adm5120hcd_driver);
+}
+
+static void __exit adm5120hcd_exit(void)
+{
+ platform_driver_unregister(&adm5120hcd_driver);
+}
+
+module_init(adm5120hcd_init);
+module_exit(adm5120hcd_exit);
projects / openwrt.git / blobdiff