forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
3224 lines
90 KiB
3224 lines
90 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
/* |
|
* Host Controller Driver for the Elan Digital Systems U132 adapter |
|
* |
|
* Copyright(C) 2006 Elan Digital Systems Limited |
|
* http://www.elandigitalsystems.com |
|
* |
|
* Author and Maintainer - Tony Olech - Elan Digital Systems |
|
* [email protected] |
|
* |
|
* This driver was written by Tony Olech([email protected]) |
|
* based on various USB host drivers in the 2.6.15 linux kernel |
|
* with constant reference to the 3rd Edition of Linux Device Drivers |
|
* published by O'Reilly |
|
* |
|
* The U132 adapter is a USB to CardBus adapter specifically designed |
|
* for PC cards that contain an OHCI host controller. Typical PC cards |
|
* are the Orange Mobile 3G Option GlobeTrotter Fusion card. |
|
* |
|
* The U132 adapter will *NOT *work with PC cards that do not contain |
|
* an OHCI controller. A simple way to test whether a PC card has an |
|
* OHCI controller as an interface is to insert the PC card directly |
|
* into a laptop(or desktop) with a CardBus slot and if "lspci" shows |
|
* a new USB controller and "lsusb -v" shows a new OHCI Host Controller |
|
* then there is a good chance that the U132 adapter will support the |
|
* PC card.(you also need the specific client driver for the PC card) |
|
* |
|
* Please inform the Author and Maintainer about any PC cards that |
|
* contain OHCI Host Controller and work when directly connected to |
|
* an embedded CardBus slot but do not work when they are connected |
|
* via an ELAN U132 adapter. |
|
* |
|
*/ |
|
#include <linux/kernel.h> |
|
#include <linux/module.h> |
|
#include <linux/moduleparam.h> |
|
#include <linux/delay.h> |
|
#include <linux/ioport.h> |
|
#include <linux/pci_ids.h> |
|
#include <linux/sched.h> |
|
#include <linux/slab.h> |
|
#include <linux/errno.h> |
|
#include <linux/init.h> |
|
#include <linux/timer.h> |
|
#include <linux/list.h> |
|
#include <linux/interrupt.h> |
|
#include <linux/usb.h> |
|
#include <linux/usb/hcd.h> |
|
#include <linux/workqueue.h> |
|
#include <linux/platform_device.h> |
|
#include <linux/mutex.h> |
|
#include <asm/io.h> |
|
#include <asm/irq.h> |
|
#include <asm/byteorder.h> |
|
|
|
/* FIXME ohci.h is ONLY for internal use by the OHCI driver. |
|
* If you're going to try stuff like this, you need to split |
|
* out shareable stuff (register declarations?) into its own |
|
* file, maybe name <linux/usb/ohci.h> |
|
*/ |
|
|
|
#include "ohci.h" |
|
#define OHCI_CONTROL_INIT OHCI_CTRL_CBSR |
|
#define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \ |
|
OHCI_INTR_WDH) |
|
MODULE_AUTHOR("Tony Olech - Elan Digital Systems Limited"); |
|
MODULE_DESCRIPTION("U132 USB Host Controller Driver"); |
|
MODULE_LICENSE("GPL"); |
|
#define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444) |
|
INT_MODULE_PARM(testing, 0); |
|
/* Some boards misreport power switching/overcurrent*/ |
|
static bool distrust_firmware = true; |
|
module_param(distrust_firmware, bool, 0); |
|
MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurrent" |
|
"t setup"); |
|
static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait); |
|
/* |
|
* u132_module_lock exists to protect access to global variables |
|
* |
|
*/ |
|
static struct mutex u132_module_lock; |
|
static int u132_exiting; |
|
static int u132_instances; |
|
/* |
|
* end of the global variables protected by u132_module_lock |
|
*/ |
|
static struct workqueue_struct *workqueue; |
|
#define MAX_U132_PORTS 7 |
|
#define MAX_U132_ADDRS 128 |
|
#define MAX_U132_UDEVS 4 |
|
#define MAX_U132_ENDPS 100 |
|
#define MAX_U132_RINGS 4 |
|
static const char *cc_to_text[16] = { |
|
"No Error ", |
|
"CRC Error ", |
|
"Bit Stuff ", |
|
"Data Togg ", |
|
"Stall ", |
|
"DevNotResp ", |
|
"PIDCheck ", |
|
"UnExpPID ", |
|
"DataOver ", |
|
"DataUnder ", |
|
"(for hw) ", |
|
"(for hw) ", |
|
"BufferOver ", |
|
"BuffUnder ", |
|
"(for HCD) ", |
|
"(for HCD) " |
|
}; |
|
struct u132_port { |
|
struct u132 *u132; |
|
int reset; |
|
int enable; |
|
int power; |
|
int Status; |
|
}; |
|
struct u132_addr { |
|
u8 address; |
|
}; |
|
struct u132_udev { |
|
struct kref kref; |
|
struct usb_device *usb_device; |
|
u8 enumeration; |
|
u8 udev_number; |
|
u8 usb_addr; |
|
u8 portnumber; |
|
u8 endp_number_in[16]; |
|
u8 endp_number_out[16]; |
|
}; |
|
#define ENDP_QUEUE_SHIFT 3 |
|
#define ENDP_QUEUE_SIZE (1<<ENDP_QUEUE_SHIFT) |
|
#define ENDP_QUEUE_MASK (ENDP_QUEUE_SIZE-1) |
|
struct u132_urbq { |
|
struct list_head urb_more; |
|
struct urb *urb; |
|
}; |
|
struct u132_spin { |
|
spinlock_t slock; |
|
}; |
|
struct u132_endp { |
|
struct kref kref; |
|
u8 udev_number; |
|
u8 endp_number; |
|
u8 usb_addr; |
|
u8 usb_endp; |
|
struct u132 *u132; |
|
struct list_head endp_ring; |
|
struct u132_ring *ring; |
|
unsigned toggle_bits:2; |
|
unsigned active:1; |
|
unsigned delayed:1; |
|
unsigned input:1; |
|
unsigned output:1; |
|
unsigned pipetype:2; |
|
unsigned dequeueing:1; |
|
unsigned edset_flush:1; |
|
unsigned spare_bits:14; |
|
unsigned long jiffies; |
|
struct usb_host_endpoint *hep; |
|
struct u132_spin queue_lock; |
|
u16 queue_size; |
|
u16 queue_last; |
|
u16 queue_next; |
|
struct urb *urb_list[ENDP_QUEUE_SIZE]; |
|
struct list_head urb_more; |
|
struct delayed_work scheduler; |
|
}; |
|
struct u132_ring { |
|
unsigned in_use:1; |
|
unsigned length:7; |
|
u8 number; |
|
struct u132 *u132; |
|
struct u132_endp *curr_endp; |
|
struct delayed_work scheduler; |
|
}; |
|
struct u132 { |
|
struct kref kref; |
|
struct mutex sw_lock; |
|
struct mutex scheduler_lock; |
|
struct u132_platform_data *board; |
|
struct platform_device *platform_dev; |
|
struct u132_ring ring[MAX_U132_RINGS]; |
|
int sequence_num; |
|
int going; |
|
int power; |
|
int reset; |
|
int num_ports; |
|
u32 hc_control; |
|
u32 hc_fminterval; |
|
u32 hc_roothub_status; |
|
u32 hc_roothub_a; |
|
u32 hc_roothub_portstatus[MAX_ROOT_PORTS]; |
|
int flags; |
|
unsigned long next_statechange; |
|
struct delayed_work monitor; |
|
int num_endpoints; |
|
struct u132_addr addr[MAX_U132_ADDRS]; |
|
struct u132_udev udev[MAX_U132_UDEVS]; |
|
struct u132_port port[MAX_U132_PORTS]; |
|
struct u132_endp *endp[MAX_U132_ENDPS]; |
|
}; |
|
|
|
/* |
|
* these cannot be inlines because we need the structure offset!! |
|
* Does anyone have a better way????? |
|
*/ |
|
#define ftdi_read_pcimem(pdev, member, data) usb_ftdi_elan_read_pcimem(pdev, \ |
|
offsetof(struct ohci_regs, member), 0, data); |
|
#define ftdi_write_pcimem(pdev, member, data) usb_ftdi_elan_write_pcimem(pdev, \ |
|
offsetof(struct ohci_regs, member), 0, data) |
|
#define u132_read_pcimem(u132, member, data) \ |
|
usb_ftdi_elan_read_pcimem(u132->platform_dev, offsetof(struct \ |
|
ohci_regs, member), 0, data) |
|
#define u132_write_pcimem(u132, member, data) \ |
|
usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \ |
|
ohci_regs, member), 0, data) |
|
static inline struct u132 *udev_to_u132(struct u132_udev *udev) |
|
{ |
|
u8 udev_number = udev->udev_number; |
|
return container_of(udev, struct u132, udev[udev_number]); |
|
} |
|
|
|
static inline struct u132 *hcd_to_u132(struct usb_hcd *hcd) |
|
{ |
|
return (struct u132 *)(hcd->hcd_priv); |
|
} |
|
|
|
static inline struct usb_hcd *u132_to_hcd(struct u132 *u132) |
|
{ |
|
return container_of((void *)u132, struct usb_hcd, hcd_priv); |
|
} |
|
|
|
static inline void u132_disable(struct u132 *u132) |
|
{ |
|
u132_to_hcd(u132)->state = HC_STATE_HALT; |
|
} |
|
|
|
|
|
#define kref_to_u132(d) container_of(d, struct u132, kref) |
|
#define kref_to_u132_endp(d) container_of(d, struct u132_endp, kref) |
|
#define kref_to_u132_udev(d) container_of(d, struct u132_udev, kref) |
|
#include "../misc/usb_u132.h" |
|
static const char hcd_name[] = "u132_hcd"; |
|
#define PORT_C_MASK ((USB_PORT_STAT_C_CONNECTION | USB_PORT_STAT_C_ENABLE | \ |
|
USB_PORT_STAT_C_SUSPEND | USB_PORT_STAT_C_OVERCURRENT | \ |
|
USB_PORT_STAT_C_RESET) << 16) |
|
static void u132_hcd_delete(struct kref *kref) |
|
{ |
|
struct u132 *u132 = kref_to_u132(kref); |
|
struct platform_device *pdev = u132->platform_dev; |
|
struct usb_hcd *hcd = u132_to_hcd(u132); |
|
u132->going += 1; |
|
mutex_lock(&u132_module_lock); |
|
u132_instances -= 1; |
|
mutex_unlock(&u132_module_lock); |
|
dev_warn(&u132->platform_dev->dev, "FREEING the hcd=%p and thus the u13" |
|
"2=%p going=%d pdev=%p\n", hcd, u132, u132->going, pdev); |
|
usb_put_hcd(hcd); |
|
} |
|
|
|
static inline void u132_u132_put_kref(struct u132 *u132) |
|
{ |
|
kref_put(&u132->kref, u132_hcd_delete); |
|
} |
|
|
|
static inline void u132_u132_init_kref(struct u132 *u132) |
|
{ |
|
kref_init(&u132->kref); |
|
} |
|
|
|
static void u132_udev_delete(struct kref *kref) |
|
{ |
|
struct u132_udev *udev = kref_to_u132_udev(kref); |
|
udev->udev_number = 0; |
|
udev->usb_device = NULL; |
|
udev->usb_addr = 0; |
|
udev->enumeration = 0; |
|
} |
|
|
|
static inline void u132_udev_put_kref(struct u132 *u132, struct u132_udev *udev) |
|
{ |
|
kref_put(&udev->kref, u132_udev_delete); |
|
} |
|
|
|
static inline void u132_udev_get_kref(struct u132 *u132, struct u132_udev *udev) |
|
{ |
|
kref_get(&udev->kref); |
|
} |
|
|
|
static inline void u132_udev_init_kref(struct u132 *u132, |
|
struct u132_udev *udev) |
|
{ |
|
kref_init(&udev->kref); |
|
} |
|
|
|
static inline void u132_ring_put_kref(struct u132 *u132, struct u132_ring *ring) |
|
{ |
|
kref_put(&u132->kref, u132_hcd_delete); |
|
} |
|
|
|
static void u132_ring_requeue_work(struct u132 *u132, struct u132_ring *ring, |
|
unsigned int delta) |
|
{ |
|
if (delta > 0) { |
|
if (queue_delayed_work(workqueue, &ring->scheduler, delta)) |
|
return; |
|
} else if (queue_delayed_work(workqueue, &ring->scheduler, 0)) |
|
return; |
|
kref_put(&u132->kref, u132_hcd_delete); |
|
} |
|
|
|
static void u132_ring_queue_work(struct u132 *u132, struct u132_ring *ring, |
|
unsigned int delta) |
|
{ |
|
kref_get(&u132->kref); |
|
u132_ring_requeue_work(u132, ring, delta); |
|
} |
|
|
|
static void u132_ring_cancel_work(struct u132 *u132, struct u132_ring *ring) |
|
{ |
|
if (cancel_delayed_work(&ring->scheduler)) |
|
kref_put(&u132->kref, u132_hcd_delete); |
|
} |
|
|
|
static void u132_endp_delete(struct kref *kref) |
|
{ |
|
struct u132_endp *endp = kref_to_u132_endp(kref); |
|
struct u132 *u132 = endp->u132; |
|
u8 usb_addr = endp->usb_addr; |
|
u8 usb_endp = endp->usb_endp; |
|
u8 address = u132->addr[usb_addr].address; |
|
struct u132_udev *udev = &u132->udev[address]; |
|
u8 endp_number = endp->endp_number; |
|
struct usb_host_endpoint *hep = endp->hep; |
|
struct u132_ring *ring = endp->ring; |
|
struct list_head *head = &endp->endp_ring; |
|
ring->length -= 1; |
|
if (endp == ring->curr_endp) { |
|
if (list_empty(head)) { |
|
ring->curr_endp = NULL; |
|
list_del(head); |
|
} else { |
|
struct u132_endp *next_endp = list_entry(head->next, |
|
struct u132_endp, endp_ring); |
|
ring->curr_endp = next_endp; |
|
list_del(head); |
|
} |
|
} else |
|
list_del(head); |
|
if (endp->input) { |
|
udev->endp_number_in[usb_endp] = 0; |
|
u132_udev_put_kref(u132, udev); |
|
} |
|
if (endp->output) { |
|
udev->endp_number_out[usb_endp] = 0; |
|
u132_udev_put_kref(u132, udev); |
|
} |
|
u132->endp[endp_number - 1] = NULL; |
|
hep->hcpriv = NULL; |
|
kfree(endp); |
|
u132_u132_put_kref(u132); |
|
} |
|
|
|
static inline void u132_endp_put_kref(struct u132 *u132, struct u132_endp *endp) |
|
{ |
|
kref_put(&endp->kref, u132_endp_delete); |
|
} |
|
|
|
static inline void u132_endp_get_kref(struct u132 *u132, struct u132_endp *endp) |
|
{ |
|
kref_get(&endp->kref); |
|
} |
|
|
|
static inline void u132_endp_init_kref(struct u132 *u132, |
|
struct u132_endp *endp) |
|
{ |
|
kref_init(&endp->kref); |
|
kref_get(&u132->kref); |
|
} |
|
|
|
static void u132_endp_queue_work(struct u132 *u132, struct u132_endp *endp, |
|
unsigned int delta) |
|
{ |
|
if (queue_delayed_work(workqueue, &endp->scheduler, delta)) |
|
kref_get(&endp->kref); |
|
} |
|
|
|
static void u132_endp_cancel_work(struct u132 *u132, struct u132_endp *endp) |
|
{ |
|
if (cancel_delayed_work(&endp->scheduler)) |
|
kref_put(&endp->kref, u132_endp_delete); |
|
} |
|
|
|
static inline void u132_monitor_put_kref(struct u132 *u132) |
|
{ |
|
kref_put(&u132->kref, u132_hcd_delete); |
|
} |
|
|
|
static void u132_monitor_queue_work(struct u132 *u132, unsigned int delta) |
|
{ |
|
if (queue_delayed_work(workqueue, &u132->monitor, delta)) |
|
kref_get(&u132->kref); |
|
} |
|
|
|
static void u132_monitor_requeue_work(struct u132 *u132, unsigned int delta) |
|
{ |
|
if (!queue_delayed_work(workqueue, &u132->monitor, delta)) |
|
kref_put(&u132->kref, u132_hcd_delete); |
|
} |
|
|
|
static void u132_monitor_cancel_work(struct u132 *u132) |
|
{ |
|
if (cancel_delayed_work(&u132->monitor)) |
|
kref_put(&u132->kref, u132_hcd_delete); |
|
} |
|
|
|
static int read_roothub_info(struct u132 *u132) |
|
{ |
|
u32 revision; |
|
int retval; |
|
retval = u132_read_pcimem(u132, revision, &revision); |
|
if (retval) { |
|
dev_err(&u132->platform_dev->dev, "error %d accessing device co" |
|
"ntrol\n", retval); |
|
return retval; |
|
} else if ((revision & 0xFF) == 0x10) { |
|
} else if ((revision & 0xFF) == 0x11) { |
|
} else { |
|
dev_err(&u132->platform_dev->dev, "device revision is not valid" |
|
" %08X\n", revision); |
|
return -ENODEV; |
|
} |
|
retval = u132_read_pcimem(u132, control, &u132->hc_control); |
|
if (retval) { |
|
dev_err(&u132->platform_dev->dev, "error %d accessing device co" |
|
"ntrol\n", retval); |
|
return retval; |
|
} |
|
retval = u132_read_pcimem(u132, roothub.status, |
|
&u132->hc_roothub_status); |
|
if (retval) { |
|
dev_err(&u132->platform_dev->dev, "error %d accessing device re" |
|
"g roothub.status\n", retval); |
|
return retval; |
|
} |
|
retval = u132_read_pcimem(u132, roothub.a, &u132->hc_roothub_a); |
|
if (retval) { |
|
dev_err(&u132->platform_dev->dev, "error %d accessing device re" |
|
"g roothub.a\n", retval); |
|
return retval; |
|
} |
|
{ |
|
int I = u132->num_ports; |
|
int i = 0; |
|
while (I-- > 0) { |
|
retval = u132_read_pcimem(u132, roothub.portstatus[i], |
|
&u132->hc_roothub_portstatus[i]); |
|
if (retval) { |
|
dev_err(&u132->platform_dev->dev, "error %d acc" |
|
"essing device roothub.portstatus[%d]\n" |
|
, retval, i); |
|
return retval; |
|
} else |
|
i += 1; |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
static void u132_hcd_monitor_work(struct work_struct *work) |
|
{ |
|
struct u132 *u132 = container_of(work, struct u132, monitor.work); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
u132_monitor_put_kref(u132); |
|
return; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
|
u132_monitor_put_kref(u132); |
|
return; |
|
} else { |
|
int retval; |
|
mutex_lock(&u132->sw_lock); |
|
retval = read_roothub_info(u132); |
|
if (retval) { |
|
struct usb_hcd *hcd = u132_to_hcd(u132); |
|
u132_disable(u132); |
|
u132->going = 1; |
|
mutex_unlock(&u132->sw_lock); |
|
usb_hc_died(hcd); |
|
ftdi_elan_gone_away(u132->platform_dev); |
|
u132_monitor_put_kref(u132); |
|
return; |
|
} else { |
|
u132_monitor_requeue_work(u132, 500); |
|
mutex_unlock(&u132->sw_lock); |
|
return; |
|
} |
|
} |
|
} |
|
|
|
static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp, |
|
struct urb *urb, int status) |
|
{ |
|
struct u132_ring *ring; |
|
unsigned long irqs; |
|
struct usb_hcd *hcd = u132_to_hcd(u132); |
|
urb->error_count = 0; |
|
spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
|
usb_hcd_unlink_urb_from_ep(hcd, urb); |
|
endp->queue_next += 1; |
|
if (ENDP_QUEUE_SIZE > --endp->queue_size) { |
|
endp->active = 0; |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
|
} else { |
|
struct list_head *next = endp->urb_more.next; |
|
struct u132_urbq *urbq = list_entry(next, struct u132_urbq, |
|
urb_more); |
|
list_del(next); |
|
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = |
|
urbq->urb; |
|
endp->active = 0; |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
|
kfree(urbq); |
|
} |
|
mutex_lock(&u132->scheduler_lock); |
|
ring = endp->ring; |
|
ring->in_use = 0; |
|
u132_ring_cancel_work(u132, ring); |
|
u132_ring_queue_work(u132, ring, 0); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_endp_put_kref(u132, endp); |
|
usb_hcd_giveback_urb(hcd, urb, status); |
|
} |
|
|
|
static void u132_hcd_forget_urb(struct u132 *u132, struct u132_endp *endp, |
|
struct urb *urb, int status) |
|
{ |
|
u132_endp_put_kref(u132, endp); |
|
} |
|
|
|
static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp, |
|
struct urb *urb, int status) |
|
{ |
|
unsigned long irqs; |
|
struct usb_hcd *hcd = u132_to_hcd(u132); |
|
urb->error_count = 0; |
|
spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
|
usb_hcd_unlink_urb_from_ep(hcd, urb); |
|
endp->queue_next += 1; |
|
if (ENDP_QUEUE_SIZE > --endp->queue_size) { |
|
endp->active = 0; |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
|
} else { |
|
struct list_head *next = endp->urb_more.next; |
|
struct u132_urbq *urbq = list_entry(next, struct u132_urbq, |
|
urb_more); |
|
list_del(next); |
|
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = |
|
urbq->urb; |
|
endp->active = 0; |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
|
kfree(urbq); |
|
} |
|
usb_hcd_giveback_urb(hcd, urb, status); |
|
} |
|
|
|
static inline int edset_input(struct u132 *u132, struct u132_ring *ring, |
|
struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
|
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, |
|
int toggle_bits, int error_count, int condition_code, int repeat_number, |
|
int halted, int skipped, int actual, int non_null)) |
|
{ |
|
return usb_ftdi_elan_edset_input(u132->platform_dev, ring->number, endp, |
|
urb, address, endp->usb_endp, toggle_bits, callback); |
|
} |
|
|
|
static inline int edset_setup(struct u132 *u132, struct u132_ring *ring, |
|
struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
|
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, |
|
int toggle_bits, int error_count, int condition_code, int repeat_number, |
|
int halted, int skipped, int actual, int non_null)) |
|
{ |
|
return usb_ftdi_elan_edset_setup(u132->platform_dev, ring->number, endp, |
|
urb, address, endp->usb_endp, toggle_bits, callback); |
|
} |
|
|
|
static inline int edset_single(struct u132 *u132, struct u132_ring *ring, |
|
struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
|
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, |
|
int toggle_bits, int error_count, int condition_code, int repeat_number, |
|
int halted, int skipped, int actual, int non_null)) |
|
{ |
|
return usb_ftdi_elan_edset_single(u132->platform_dev, ring->number, |
|
endp, urb, address, endp->usb_endp, toggle_bits, callback); |
|
} |
|
|
|
static inline int edset_output(struct u132 *u132, struct u132_ring *ring, |
|
struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
|
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, |
|
int toggle_bits, int error_count, int condition_code, int repeat_number, |
|
int halted, int skipped, int actual, int non_null)) |
|
{ |
|
return usb_ftdi_elan_edset_output(u132->platform_dev, ring->number, |
|
endp, urb, address, endp->usb_endp, toggle_bits, callback); |
|
} |
|
|
|
|
|
/* |
|
* must not LOCK sw_lock |
|
* |
|
*/ |
|
static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf, |
|
int len, int toggle_bits, int error_count, int condition_code, |
|
int repeat_number, int halted, int skipped, int actual, int non_null) |
|
{ |
|
struct u132_endp *endp = data; |
|
struct u132 *u132 = endp->u132; |
|
u8 address = u132->addr[endp->usb_addr].address; |
|
struct u132_udev *udev = &u132->udev[address]; |
|
mutex_lock(&u132->scheduler_lock); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (endp->dequeueing) { |
|
endp->dequeueing = 0; |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
|
return; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed " |
|
"urb=%p\n", urb); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (!urb->unlinked) { |
|
struct u132_ring *ring = endp->ring; |
|
u8 *u = urb->transfer_buffer + urb->actual_length; |
|
u8 *b = buf; |
|
int L = len; |
|
|
|
while (L-- > 0) |
|
*u++ = *b++; |
|
|
|
urb->actual_length += len; |
|
if ((condition_code == TD_CC_NOERROR) && |
|
(urb->transfer_buffer_length > urb->actual_length)) { |
|
endp->toggle_bits = toggle_bits; |
|
usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
|
1 & toggle_bits); |
|
if (urb->actual_length > 0) { |
|
int retval; |
|
mutex_unlock(&u132->scheduler_lock); |
|
retval = edset_single(u132, ring, endp, urb, |
|
address, endp->toggle_bits, |
|
u132_hcd_interrupt_recv); |
|
if (retval != 0) |
|
u132_hcd_giveback_urb(u132, endp, urb, |
|
retval); |
|
} else { |
|
ring->in_use = 0; |
|
endp->active = 0; |
|
endp->jiffies = jiffies + |
|
msecs_to_jiffies(urb->interval); |
|
u132_ring_cancel_work(u132, ring); |
|
u132_ring_queue_work(u132, ring, 0); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_endp_put_kref(u132, endp); |
|
} |
|
return; |
|
} else if ((condition_code == TD_DATAUNDERRUN) && |
|
((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) { |
|
endp->toggle_bits = toggle_bits; |
|
usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
|
1 & toggle_bits); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} else { |
|
if (condition_code == TD_CC_NOERROR) { |
|
endp->toggle_bits = toggle_bits; |
|
usb_settoggle(udev->usb_device, endp->usb_endp, |
|
0, 1 & toggle_bits); |
|
} else if (condition_code == TD_CC_STALL) { |
|
endp->toggle_bits = 0x2; |
|
usb_settoggle(udev->usb_device, endp->usb_endp, |
|
0, 0); |
|
} else { |
|
endp->toggle_bits = 0x2; |
|
usb_settoggle(udev->usb_device, endp->usb_endp, |
|
0, 0); |
|
dev_err(&u132->platform_dev->dev, "urb=%p givin" |
|
"g back INTERRUPT %s\n", urb, |
|
cc_to_text[condition_code]); |
|
} |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, |
|
cc_to_error[condition_code]); |
|
return; |
|
} |
|
} else { |
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
|
"unlinked=%d\n", urb, urb->unlinked); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} |
|
} |
|
|
|
static void u132_hcd_bulk_output_sent(void *data, struct urb *urb, u8 *buf, |
|
int len, int toggle_bits, int error_count, int condition_code, |
|
int repeat_number, int halted, int skipped, int actual, int non_null) |
|
{ |
|
struct u132_endp *endp = data; |
|
struct u132 *u132 = endp->u132; |
|
u8 address = u132->addr[endp->usb_addr].address; |
|
mutex_lock(&u132->scheduler_lock); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (endp->dequeueing) { |
|
endp->dequeueing = 0; |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
|
return; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed " |
|
"urb=%p\n", urb); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (!urb->unlinked) { |
|
struct u132_ring *ring = endp->ring; |
|
urb->actual_length += len; |
|
endp->toggle_bits = toggle_bits; |
|
if (urb->transfer_buffer_length > urb->actual_length) { |
|
int retval; |
|
mutex_unlock(&u132->scheduler_lock); |
|
retval = edset_output(u132, ring, endp, urb, address, |
|
endp->toggle_bits, u132_hcd_bulk_output_sent); |
|
if (retval != 0) |
|
u132_hcd_giveback_urb(u132, endp, urb, retval); |
|
return; |
|
} else { |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} |
|
} else { |
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
|
"unlinked=%d\n", urb, urb->unlinked); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} |
|
} |
|
|
|
static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf, |
|
int len, int toggle_bits, int error_count, int condition_code, |
|
int repeat_number, int halted, int skipped, int actual, int non_null) |
|
{ |
|
struct u132_endp *endp = data; |
|
struct u132 *u132 = endp->u132; |
|
u8 address = u132->addr[endp->usb_addr].address; |
|
struct u132_udev *udev = &u132->udev[address]; |
|
mutex_lock(&u132->scheduler_lock); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (endp->dequeueing) { |
|
endp->dequeueing = 0; |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
|
return; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed " |
|
"urb=%p\n", urb); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (!urb->unlinked) { |
|
struct u132_ring *ring = endp->ring; |
|
u8 *u = urb->transfer_buffer + urb->actual_length; |
|
u8 *b = buf; |
|
int L = len; |
|
|
|
while (L-- > 0) |
|
*u++ = *b++; |
|
|
|
urb->actual_length += len; |
|
if ((condition_code == TD_CC_NOERROR) && |
|
(urb->transfer_buffer_length > urb->actual_length)) { |
|
int retval; |
|
endp->toggle_bits = toggle_bits; |
|
usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
|
1 & toggle_bits); |
|
mutex_unlock(&u132->scheduler_lock); |
|
retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
|
ring->number, endp, urb, address, |
|
endp->usb_endp, endp->toggle_bits, |
|
u132_hcd_bulk_input_recv); |
|
if (retval != 0) |
|
u132_hcd_giveback_urb(u132, endp, urb, retval); |
|
return; |
|
} else if (condition_code == TD_CC_NOERROR) { |
|
endp->toggle_bits = toggle_bits; |
|
usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
|
1 & toggle_bits); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, |
|
cc_to_error[condition_code]); |
|
return; |
|
} else if ((condition_code == TD_DATAUNDERRUN) && |
|
((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) { |
|
endp->toggle_bits = toggle_bits; |
|
usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
|
1 & toggle_bits); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} else if (condition_code == TD_DATAUNDERRUN) { |
|
endp->toggle_bits = toggle_bits; |
|
usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
|
1 & toggle_bits); |
|
dev_warn(&u132->platform_dev->dev, "urb=%p(SHORT NOT OK" |
|
") giving back BULK IN %s\n", urb, |
|
cc_to_text[condition_code]); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} else if (condition_code == TD_CC_STALL) { |
|
endp->toggle_bits = 0x2; |
|
usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, |
|
cc_to_error[condition_code]); |
|
return; |
|
} else { |
|
endp->toggle_bits = 0x2; |
|
usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0); |
|
dev_err(&u132->platform_dev->dev, "urb=%p giving back B" |
|
"ULK IN code=%d %s\n", urb, condition_code, |
|
cc_to_text[condition_code]); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, |
|
cc_to_error[condition_code]); |
|
return; |
|
} |
|
} else { |
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
|
"unlinked=%d\n", urb, urb->unlinked); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} |
|
} |
|
|
|
static void u132_hcd_configure_empty_sent(void *data, struct urb *urb, u8 *buf, |
|
int len, int toggle_bits, int error_count, int condition_code, |
|
int repeat_number, int halted, int skipped, int actual, int non_null) |
|
{ |
|
struct u132_endp *endp = data; |
|
struct u132 *u132 = endp->u132; |
|
mutex_lock(&u132->scheduler_lock); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (endp->dequeueing) { |
|
endp->dequeueing = 0; |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
|
return; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed " |
|
"urb=%p\n", urb); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (!urb->unlinked) { |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} else { |
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
|
"unlinked=%d\n", urb, urb->unlinked); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} |
|
} |
|
|
|
static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf, |
|
int len, int toggle_bits, int error_count, int condition_code, |
|
int repeat_number, int halted, int skipped, int actual, int non_null) |
|
{ |
|
struct u132_endp *endp = data; |
|
struct u132 *u132 = endp->u132; |
|
u8 address = u132->addr[endp->usb_addr].address; |
|
mutex_lock(&u132->scheduler_lock); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (endp->dequeueing) { |
|
endp->dequeueing = 0; |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
|
return; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed " |
|
"urb=%p\n", urb); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (!urb->unlinked) { |
|
struct u132_ring *ring = endp->ring; |
|
u8 *u = urb->transfer_buffer; |
|
u8 *b = buf; |
|
int L = len; |
|
|
|
while (L-- > 0) |
|
*u++ = *b++; |
|
|
|
urb->actual_length = len; |
|
if ((condition_code == TD_CC_NOERROR) || ((condition_code == |
|
TD_DATAUNDERRUN) && ((urb->transfer_flags & |
|
URB_SHORT_NOT_OK) == 0))) { |
|
int retval; |
|
mutex_unlock(&u132->scheduler_lock); |
|
retval = usb_ftdi_elan_edset_empty(u132->platform_dev, |
|
ring->number, endp, urb, address, |
|
endp->usb_endp, 0x3, |
|
u132_hcd_configure_empty_sent); |
|
if (retval != 0) |
|
u132_hcd_giveback_urb(u132, endp, urb, retval); |
|
return; |
|
} else if (condition_code == TD_CC_STALL) { |
|
mutex_unlock(&u132->scheduler_lock); |
|
dev_warn(&u132->platform_dev->dev, "giving back SETUP I" |
|
"NPUT STALL urb %p\n", urb); |
|
u132_hcd_giveback_urb(u132, endp, urb, |
|
cc_to_error[condition_code]); |
|
return; |
|
} else { |
|
mutex_unlock(&u132->scheduler_lock); |
|
dev_err(&u132->platform_dev->dev, "giving back SETUP IN" |
|
"PUT %s urb %p\n", cc_to_text[condition_code], |
|
urb); |
|
u132_hcd_giveback_urb(u132, endp, urb, |
|
cc_to_error[condition_code]); |
|
return; |
|
} |
|
} else { |
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
|
"unlinked=%d\n", urb, urb->unlinked); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} |
|
} |
|
|
|
static void u132_hcd_configure_empty_recv(void *data, struct urb *urb, u8 *buf, |
|
int len, int toggle_bits, int error_count, int condition_code, |
|
int repeat_number, int halted, int skipped, int actual, int non_null) |
|
{ |
|
struct u132_endp *endp = data; |
|
struct u132 *u132 = endp->u132; |
|
mutex_lock(&u132->scheduler_lock); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (endp->dequeueing) { |
|
endp->dequeueing = 0; |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
|
return; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed " |
|
"urb=%p\n", urb); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (!urb->unlinked) { |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} else { |
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
|
"unlinked=%d\n", urb, urb->unlinked); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} |
|
} |
|
|
|
static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf, |
|
int len, int toggle_bits, int error_count, int condition_code, |
|
int repeat_number, int halted, int skipped, int actual, int non_null) |
|
{ |
|
struct u132_endp *endp = data; |
|
struct u132 *u132 = endp->u132; |
|
u8 address = u132->addr[endp->usb_addr].address; |
|
mutex_lock(&u132->scheduler_lock); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (endp->dequeueing) { |
|
endp->dequeueing = 0; |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
|
return; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed " |
|
"urb=%p\n", urb); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (!urb->unlinked) { |
|
if (usb_pipein(urb->pipe)) { |
|
int retval; |
|
struct u132_ring *ring = endp->ring; |
|
mutex_unlock(&u132->scheduler_lock); |
|
retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
|
ring->number, endp, urb, address, |
|
endp->usb_endp, 0, |
|
u132_hcd_configure_input_recv); |
|
if (retval != 0) |
|
u132_hcd_giveback_urb(u132, endp, urb, retval); |
|
return; |
|
} else { |
|
int retval; |
|
struct u132_ring *ring = endp->ring; |
|
mutex_unlock(&u132->scheduler_lock); |
|
retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
|
ring->number, endp, urb, address, |
|
endp->usb_endp, 0, |
|
u132_hcd_configure_empty_recv); |
|
if (retval != 0) |
|
u132_hcd_giveback_urb(u132, endp, urb, retval); |
|
return; |
|
} |
|
} else { |
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
|
"unlinked=%d\n", urb, urb->unlinked); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} |
|
} |
|
|
|
static void u132_hcd_enumeration_empty_recv(void *data, struct urb *urb, |
|
u8 *buf, int len, int toggle_bits, int error_count, int condition_code, |
|
int repeat_number, int halted, int skipped, int actual, int non_null) |
|
{ |
|
struct u132_endp *endp = data; |
|
struct u132 *u132 = endp->u132; |
|
u8 address = u132->addr[endp->usb_addr].address; |
|
struct u132_udev *udev = &u132->udev[address]; |
|
mutex_lock(&u132->scheduler_lock); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (endp->dequeueing) { |
|
endp->dequeueing = 0; |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
|
return; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed " |
|
"urb=%p\n", urb); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (!urb->unlinked) { |
|
u132->addr[0].address = 0; |
|
endp->usb_addr = udev->usb_addr; |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} else { |
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
|
"unlinked=%d\n", urb, urb->unlinked); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} |
|
} |
|
|
|
static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb, |
|
u8 *buf, int len, int toggle_bits, int error_count, int condition_code, |
|
int repeat_number, int halted, int skipped, int actual, int non_null) |
|
{ |
|
struct u132_endp *endp = data; |
|
struct u132 *u132 = endp->u132; |
|
mutex_lock(&u132->scheduler_lock); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (endp->dequeueing) { |
|
endp->dequeueing = 0; |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
|
return; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed " |
|
"urb=%p\n", urb); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (!urb->unlinked) { |
|
int retval; |
|
struct u132_ring *ring = endp->ring; |
|
mutex_unlock(&u132->scheduler_lock); |
|
retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
|
ring->number, endp, urb, 0, endp->usb_endp, 0, |
|
u132_hcd_enumeration_empty_recv); |
|
if (retval != 0) |
|
u132_hcd_giveback_urb(u132, endp, urb, retval); |
|
return; |
|
} else { |
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
|
"unlinked=%d\n", urb, urb->unlinked); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} |
|
} |
|
|
|
static void u132_hcd_initial_empty_sent(void *data, struct urb *urb, u8 *buf, |
|
int len, int toggle_bits, int error_count, int condition_code, |
|
int repeat_number, int halted, int skipped, int actual, int non_null) |
|
{ |
|
struct u132_endp *endp = data; |
|
struct u132 *u132 = endp->u132; |
|
mutex_lock(&u132->scheduler_lock); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (endp->dequeueing) { |
|
endp->dequeueing = 0; |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
|
return; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed " |
|
"urb=%p\n", urb); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (!urb->unlinked) { |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} else { |
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
|
"unlinked=%d\n", urb, urb->unlinked); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} |
|
} |
|
|
|
static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf, |
|
int len, int toggle_bits, int error_count, int condition_code, |
|
int repeat_number, int halted, int skipped, int actual, int non_null) |
|
{ |
|
struct u132_endp *endp = data; |
|
struct u132 *u132 = endp->u132; |
|
u8 address = u132->addr[endp->usb_addr].address; |
|
mutex_lock(&u132->scheduler_lock); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (endp->dequeueing) { |
|
endp->dequeueing = 0; |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
|
return; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed " |
|
"urb=%p\n", urb); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (!urb->unlinked) { |
|
int retval; |
|
struct u132_ring *ring = endp->ring; |
|
u8 *u = urb->transfer_buffer; |
|
u8 *b = buf; |
|
int L = len; |
|
|
|
while (L-- > 0) |
|
*u++ = *b++; |
|
|
|
urb->actual_length = len; |
|
mutex_unlock(&u132->scheduler_lock); |
|
retval = usb_ftdi_elan_edset_empty(u132->platform_dev, |
|
ring->number, endp, urb, address, endp->usb_endp, 0x3, |
|
u132_hcd_initial_empty_sent); |
|
if (retval != 0) |
|
u132_hcd_giveback_urb(u132, endp, urb, retval); |
|
return; |
|
} else { |
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
|
"unlinked=%d\n", urb, urb->unlinked); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} |
|
} |
|
|
|
static void u132_hcd_initial_setup_sent(void *data, struct urb *urb, u8 *buf, |
|
int len, int toggle_bits, int error_count, int condition_code, |
|
int repeat_number, int halted, int skipped, int actual, int non_null) |
|
{ |
|
struct u132_endp *endp = data; |
|
struct u132 *u132 = endp->u132; |
|
u8 address = u132->addr[endp->usb_addr].address; |
|
mutex_lock(&u132->scheduler_lock); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (endp->dequeueing) { |
|
endp->dequeueing = 0; |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
|
return; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed " |
|
"urb=%p\n", urb); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
|
return; |
|
} else if (!urb->unlinked) { |
|
int retval; |
|
struct u132_ring *ring = endp->ring; |
|
mutex_unlock(&u132->scheduler_lock); |
|
retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
|
ring->number, endp, urb, address, endp->usb_endp, 0, |
|
u132_hcd_initial_input_recv); |
|
if (retval != 0) |
|
u132_hcd_giveback_urb(u132, endp, urb, retval); |
|
return; |
|
} else { |
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
|
"unlinked=%d\n", urb, urb->unlinked); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_hcd_giveback_urb(u132, endp, urb, 0); |
|
return; |
|
} |
|
} |
|
|
|
/* |
|
* this work function is only executed from the work queue |
|
* |
|
*/ |
|
static void u132_hcd_ring_work_scheduler(struct work_struct *work) |
|
{ |
|
struct u132_ring *ring = |
|
container_of(work, struct u132_ring, scheduler.work); |
|
struct u132 *u132 = ring->u132; |
|
mutex_lock(&u132->scheduler_lock); |
|
if (ring->in_use) { |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_ring_put_kref(u132, ring); |
|
return; |
|
} else if (ring->curr_endp) { |
|
struct u132_endp *endp, *last_endp = ring->curr_endp; |
|
unsigned long wakeup = 0; |
|
list_for_each_entry(endp, &last_endp->endp_ring, endp_ring) { |
|
if (endp->queue_next == endp->queue_last) { |
|
} else if ((endp->delayed == 0) |
|
|| time_after_eq(jiffies, endp->jiffies)) { |
|
ring->curr_endp = endp; |
|
u132_endp_cancel_work(u132, last_endp); |
|
u132_endp_queue_work(u132, last_endp, 0); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_ring_put_kref(u132, ring); |
|
return; |
|
} else { |
|
unsigned long delta = endp->jiffies - jiffies; |
|
if (delta > wakeup) |
|
wakeup = delta; |
|
} |
|
} |
|
if (last_endp->queue_next == last_endp->queue_last) { |
|
} else if ((last_endp->delayed == 0) || time_after_eq(jiffies, |
|
last_endp->jiffies)) { |
|
u132_endp_cancel_work(u132, last_endp); |
|
u132_endp_queue_work(u132, last_endp, 0); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_ring_put_kref(u132, ring); |
|
return; |
|
} else { |
|
unsigned long delta = last_endp->jiffies - jiffies; |
|
if (delta > wakeup) |
|
wakeup = delta; |
|
} |
|
if (wakeup > 0) { |
|
u132_ring_requeue_work(u132, ring, wakeup); |
|
mutex_unlock(&u132->scheduler_lock); |
|
return; |
|
} else { |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_ring_put_kref(u132, ring); |
|
return; |
|
} |
|
} else { |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_ring_put_kref(u132, ring); |
|
return; |
|
} |
|
} |
|
|
|
static void u132_hcd_endp_work_scheduler(struct work_struct *work) |
|
{ |
|
struct u132_ring *ring; |
|
struct u132_endp *endp = |
|
container_of(work, struct u132_endp, scheduler.work); |
|
struct u132 *u132 = endp->u132; |
|
mutex_lock(&u132->scheduler_lock); |
|
ring = endp->ring; |
|
if (endp->edset_flush) { |
|
endp->edset_flush = 0; |
|
if (endp->dequeueing) |
|
usb_ftdi_elan_edset_flush(u132->platform_dev, |
|
ring->number, endp); |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_endp_put_kref(u132, endp); |
|
return; |
|
} else if (endp->active) { |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_endp_put_kref(u132, endp); |
|
return; |
|
} else if (ring->in_use) { |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_endp_put_kref(u132, endp); |
|
return; |
|
} else if (endp->queue_next == endp->queue_last) { |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_endp_put_kref(u132, endp); |
|
return; |
|
} else if (endp->pipetype == PIPE_INTERRUPT) { |
|
u8 address = u132->addr[endp->usb_addr].address; |
|
if (ring->in_use) { |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_endp_put_kref(u132, endp); |
|
return; |
|
} else { |
|
int retval; |
|
struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & |
|
endp->queue_next]; |
|
endp->active = 1; |
|
ring->curr_endp = endp; |
|
ring->in_use = 1; |
|
mutex_unlock(&u132->scheduler_lock); |
|
retval = edset_single(u132, ring, endp, urb, address, |
|
endp->toggle_bits, u132_hcd_interrupt_recv); |
|
if (retval != 0) |
|
u132_hcd_giveback_urb(u132, endp, urb, retval); |
|
return; |
|
} |
|
} else if (endp->pipetype == PIPE_CONTROL) { |
|
u8 address = u132->addr[endp->usb_addr].address; |
|
if (ring->in_use) { |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_endp_put_kref(u132, endp); |
|
return; |
|
} else if (address == 0) { |
|
int retval; |
|
struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & |
|
endp->queue_next]; |
|
endp->active = 1; |
|
ring->curr_endp = endp; |
|
ring->in_use = 1; |
|
mutex_unlock(&u132->scheduler_lock); |
|
retval = edset_setup(u132, ring, endp, urb, address, |
|
0x2, u132_hcd_initial_setup_sent); |
|
if (retval != 0) |
|
u132_hcd_giveback_urb(u132, endp, urb, retval); |
|
return; |
|
} else if (endp->usb_addr == 0) { |
|
int retval; |
|
struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & |
|
endp->queue_next]; |
|
endp->active = 1; |
|
ring->curr_endp = endp; |
|
ring->in_use = 1; |
|
mutex_unlock(&u132->scheduler_lock); |
|
retval = edset_setup(u132, ring, endp, urb, 0, 0x2, |
|
u132_hcd_enumeration_address_sent); |
|
if (retval != 0) |
|
u132_hcd_giveback_urb(u132, endp, urb, retval); |
|
return; |
|
} else { |
|
int retval; |
|
struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & |
|
endp->queue_next]; |
|
address = u132->addr[endp->usb_addr].address; |
|
endp->active = 1; |
|
ring->curr_endp = endp; |
|
ring->in_use = 1; |
|
mutex_unlock(&u132->scheduler_lock); |
|
retval = edset_setup(u132, ring, endp, urb, address, |
|
0x2, u132_hcd_configure_setup_sent); |
|
if (retval != 0) |
|
u132_hcd_giveback_urb(u132, endp, urb, retval); |
|
return; |
|
} |
|
} else { |
|
if (endp->input) { |
|
u8 address = u132->addr[endp->usb_addr].address; |
|
if (ring->in_use) { |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_endp_put_kref(u132, endp); |
|
return; |
|
} else { |
|
int retval; |
|
struct urb *urb = endp->urb_list[ |
|
ENDP_QUEUE_MASK & endp->queue_next]; |
|
endp->active = 1; |
|
ring->curr_endp = endp; |
|
ring->in_use = 1; |
|
mutex_unlock(&u132->scheduler_lock); |
|
retval = edset_input(u132, ring, endp, urb, |
|
address, endp->toggle_bits, |
|
u132_hcd_bulk_input_recv); |
|
if (retval == 0) { |
|
} else |
|
u132_hcd_giveback_urb(u132, endp, urb, |
|
retval); |
|
return; |
|
} |
|
} else { /* output pipe */ |
|
u8 address = u132->addr[endp->usb_addr].address; |
|
if (ring->in_use) { |
|
mutex_unlock(&u132->scheduler_lock); |
|
u132_endp_put_kref(u132, endp); |
|
return; |
|
} else { |
|
int retval; |
|
struct urb *urb = endp->urb_list[ |
|
ENDP_QUEUE_MASK & endp->queue_next]; |
|
endp->active = 1; |
|
ring->curr_endp = endp; |
|
ring->in_use = 1; |
|
mutex_unlock(&u132->scheduler_lock); |
|
retval = edset_output(u132, ring, endp, urb, |
|
address, endp->toggle_bits, |
|
u132_hcd_bulk_output_sent); |
|
if (retval == 0) { |
|
} else |
|
u132_hcd_giveback_urb(u132, endp, urb, |
|
retval); |
|
return; |
|
} |
|
} |
|
} |
|
} |
|
#ifdef CONFIG_PM |
|
|
|
static void port_power(struct u132 *u132, int pn, int is_on) |
|
{ |
|
u132->port[pn].power = is_on; |
|
} |
|
|
|
#endif |
|
|
|
static void u132_power(struct u132 *u132, int is_on) |
|
{ |
|
struct usb_hcd *hcd = u132_to_hcd(u132) |
|
; /* hub is inactive unless the port is powered */ |
|
if (is_on) { |
|
if (u132->power) |
|
return; |
|
u132->power = 1; |
|
} else { |
|
u132->power = 0; |
|
hcd->state = HC_STATE_HALT; |
|
} |
|
} |
|
|
|
static int u132_periodic_reinit(struct u132 *u132) |
|
{ |
|
int retval; |
|
u32 fi = u132->hc_fminterval & 0x03fff; |
|
u32 fit; |
|
u32 fminterval; |
|
retval = u132_read_pcimem(u132, fminterval, &fminterval); |
|
if (retval) |
|
return retval; |
|
fit = fminterval & FIT; |
|
retval = u132_write_pcimem(u132, fminterval, |
|
(fit ^ FIT) | u132->hc_fminterval); |
|
if (retval) |
|
return retval; |
|
return u132_write_pcimem(u132, periodicstart, |
|
((9 * fi) / 10) & 0x3fff); |
|
} |
|
|
|
static char *hcfs2string(int state) |
|
{ |
|
switch (state) { |
|
case OHCI_USB_RESET: |
|
return "reset"; |
|
case OHCI_USB_RESUME: |
|
return "resume"; |
|
case OHCI_USB_OPER: |
|
return "operational"; |
|
case OHCI_USB_SUSPEND: |
|
return "suspend"; |
|
} |
|
return "?"; |
|
} |
|
|
|
static int u132_init(struct u132 *u132) |
|
{ |
|
int retval; |
|
u32 control; |
|
u132_disable(u132); |
|
u132->next_statechange = jiffies; |
|
retval = u132_write_pcimem(u132, intrdisable, OHCI_INTR_MIE); |
|
if (retval) |
|
return retval; |
|
retval = u132_read_pcimem(u132, control, &control); |
|
if (retval) |
|
return retval; |
|
if (u132->num_ports == 0) { |
|
u32 rh_a = -1; |
|
retval = u132_read_pcimem(u132, roothub.a, &rh_a); |
|
if (retval) |
|
return retval; |
|
u132->num_ports = rh_a & RH_A_NDP; |
|
retval = read_roothub_info(u132); |
|
if (retval) |
|
return retval; |
|
} |
|
if (u132->num_ports > MAX_U132_PORTS) |
|
return -EINVAL; |
|
|
|
return 0; |
|
} |
|
|
|
|
|
/* Start an OHCI controller, set the BUS operational |
|
* resets USB and controller |
|
* enable interrupts |
|
*/ |
|
static int u132_run(struct u132 *u132) |
|
{ |
|
int retval; |
|
u32 control; |
|
u32 status; |
|
u32 fminterval; |
|
u32 periodicstart; |
|
u32 cmdstatus; |
|
u32 roothub_a; |
|
int mask = OHCI_INTR_INIT; |
|
int first = u132->hc_fminterval == 0; |
|
int sleep_time = 0; |
|
int reset_timeout = 30; /* ... allow extra time */ |
|
u132_disable(u132); |
|
if (first) { |
|
u32 temp; |
|
retval = u132_read_pcimem(u132, fminterval, &temp); |
|
if (retval) |
|
return retval; |
|
u132->hc_fminterval = temp & 0x3fff; |
|
u132->hc_fminterval |= FSMP(u132->hc_fminterval) << 16; |
|
} |
|
retval = u132_read_pcimem(u132, control, &u132->hc_control); |
|
if (retval) |
|
return retval; |
|
dev_info(&u132->platform_dev->dev, "resetting from state '%s', control " |
|
"= %08X\n", hcfs2string(u132->hc_control & OHCI_CTRL_HCFS), |
|
u132->hc_control); |
|
switch (u132->hc_control & OHCI_CTRL_HCFS) { |
|
case OHCI_USB_OPER: |
|
sleep_time = 0; |
|
break; |
|
case OHCI_USB_SUSPEND: |
|
case OHCI_USB_RESUME: |
|
u132->hc_control &= OHCI_CTRL_RWC; |
|
u132->hc_control |= OHCI_USB_RESUME; |
|
sleep_time = 10; |
|
break; |
|
default: |
|
u132->hc_control &= OHCI_CTRL_RWC; |
|
u132->hc_control |= OHCI_USB_RESET; |
|
sleep_time = 50; |
|
break; |
|
} |
|
retval = u132_write_pcimem(u132, control, u132->hc_control); |
|
if (retval) |
|
return retval; |
|
retval = u132_read_pcimem(u132, control, &control); |
|
if (retval) |
|
return retval; |
|
msleep(sleep_time); |
|
retval = u132_read_pcimem(u132, roothub.a, &roothub_a); |
|
if (retval) |
|
return retval; |
|
if (!(roothub_a & RH_A_NPS)) { |
|
int temp; /* power down each port */ |
|
for (temp = 0; temp < u132->num_ports; temp++) { |
|
retval = u132_write_pcimem(u132, |
|
roothub.portstatus[temp], RH_PS_LSDA); |
|
if (retval) |
|
return retval; |
|
} |
|
} |
|
retval = u132_read_pcimem(u132, control, &control); |
|
if (retval) |
|
return retval; |
|
retry: |
|
retval = u132_read_pcimem(u132, cmdstatus, &status); |
|
if (retval) |
|
return retval; |
|
retval = u132_write_pcimem(u132, cmdstatus, OHCI_HCR); |
|
if (retval) |
|
return retval; |
|
extra: { |
|
retval = u132_read_pcimem(u132, cmdstatus, &status); |
|
if (retval) |
|
return retval; |
|
if (0 != (status & OHCI_HCR)) { |
|
if (--reset_timeout == 0) { |
|
dev_err(&u132->platform_dev->dev, "USB HC reset" |
|
" timed out!\n"); |
|
return -ENODEV; |
|
} else { |
|
msleep(5); |
|
goto extra; |
|
} |
|
} |
|
} |
|
if (u132->flags & OHCI_QUIRK_INITRESET) { |
|
retval = u132_write_pcimem(u132, control, u132->hc_control); |
|
if (retval) |
|
return retval; |
|
retval = u132_read_pcimem(u132, control, &control); |
|
if (retval) |
|
return retval; |
|
} |
|
retval = u132_write_pcimem(u132, ed_controlhead, 0x00000000); |
|
if (retval) |
|
return retval; |
|
retval = u132_write_pcimem(u132, ed_bulkhead, 0x11000000); |
|
if (retval) |
|
return retval; |
|
retval = u132_write_pcimem(u132, hcca, 0x00000000); |
|
if (retval) |
|
return retval; |
|
retval = u132_periodic_reinit(u132); |
|
if (retval) |
|
return retval; |
|
retval = u132_read_pcimem(u132, fminterval, &fminterval); |
|
if (retval) |
|
return retval; |
|
retval = u132_read_pcimem(u132, periodicstart, &periodicstart); |
|
if (retval) |
|
return retval; |
|
if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) { |
|
if (!(u132->flags & OHCI_QUIRK_INITRESET)) { |
|
u132->flags |= OHCI_QUIRK_INITRESET; |
|
goto retry; |
|
} else |
|
dev_err(&u132->platform_dev->dev, "init err(%08x %04x)" |
|
"\n", fminterval, periodicstart); |
|
} /* start controller operations */ |
|
u132->hc_control &= OHCI_CTRL_RWC; |
|
u132->hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER; |
|
retval = u132_write_pcimem(u132, control, u132->hc_control); |
|
if (retval) |
|
return retval; |
|
retval = u132_write_pcimem(u132, cmdstatus, OHCI_BLF); |
|
if (retval) |
|
return retval; |
|
retval = u132_read_pcimem(u132, cmdstatus, &cmdstatus); |
|
if (retval) |
|
return retval; |
|
retval = u132_read_pcimem(u132, control, &control); |
|
if (retval) |
|
return retval; |
|
u132_to_hcd(u132)->state = HC_STATE_RUNNING; |
|
retval = u132_write_pcimem(u132, roothub.status, RH_HS_DRWE); |
|
if (retval) |
|
return retval; |
|
retval = u132_write_pcimem(u132, intrstatus, mask); |
|
if (retval) |
|
return retval; |
|
retval = u132_write_pcimem(u132, intrdisable, |
|
OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO | |
|
OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH | |
|
OHCI_INTR_SO); |
|
if (retval) |
|
return retval; /* handle root hub init quirks ... */ |
|
retval = u132_read_pcimem(u132, roothub.a, &roothub_a); |
|
if (retval) |
|
return retval; |
|
roothub_a &= ~(RH_A_PSM | RH_A_OCPM); |
|
if (u132->flags & OHCI_QUIRK_SUPERIO) { |
|
roothub_a |= RH_A_NOCP; |
|
roothub_a &= ~(RH_A_POTPGT | RH_A_NPS); |
|
retval = u132_write_pcimem(u132, roothub.a, roothub_a); |
|
if (retval) |
|
return retval; |
|
} else if ((u132->flags & OHCI_QUIRK_AMD756) || distrust_firmware) { |
|
roothub_a |= RH_A_NPS; |
|
retval = u132_write_pcimem(u132, roothub.a, roothub_a); |
|
if (retval) |
|
return retval; |
|
} |
|
retval = u132_write_pcimem(u132, roothub.status, RH_HS_LPSC); |
|
if (retval) |
|
return retval; |
|
retval = u132_write_pcimem(u132, roothub.b, |
|
(roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM); |
|
if (retval) |
|
return retval; |
|
retval = u132_read_pcimem(u132, control, &control); |
|
if (retval) |
|
return retval; |
|
mdelay((roothub_a >> 23) & 0x1fe); |
|
u132_to_hcd(u132)->state = HC_STATE_RUNNING; |
|
return 0; |
|
} |
|
|
|
static void u132_hcd_stop(struct usb_hcd *hcd) |
|
{ |
|
struct u132 *u132 = hcd_to_u132(hcd); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p) has b" |
|
"een removed %d\n", u132, hcd, u132->going); |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" |
|
"ed\n", hcd); |
|
} else { |
|
mutex_lock(&u132->sw_lock); |
|
msleep(100); |
|
u132_power(u132, 0); |
|
mutex_unlock(&u132->sw_lock); |
|
} |
|
} |
|
|
|
static int u132_hcd_start(struct usb_hcd *hcd) |
|
{ |
|
struct u132 *u132 = hcd_to_u132(hcd); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
return -ENODEV; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
|
return -ESHUTDOWN; |
|
} else if (hcd->self.controller) { |
|
int retval; |
|
struct platform_device *pdev = |
|
to_platform_device(hcd->self.controller); |
|
u16 vendor = ((struct u132_platform_data *) |
|
dev_get_platdata(&pdev->dev))->vendor; |
|
u16 device = ((struct u132_platform_data *) |
|
dev_get_platdata(&pdev->dev))->device; |
|
mutex_lock(&u132->sw_lock); |
|
msleep(10); |
|
if (vendor == PCI_VENDOR_ID_AMD && device == 0x740c) { |
|
u132->flags = OHCI_QUIRK_AMD756; |
|
} else if (vendor == PCI_VENDOR_ID_OPTI && device == 0xc861) { |
|
dev_err(&u132->platform_dev->dev, "WARNING: OPTi workar" |
|
"ounds unavailable\n"); |
|
} else if (vendor == PCI_VENDOR_ID_COMPAQ && device == 0xa0f8) |
|
u132->flags |= OHCI_QUIRK_ZFMICRO; |
|
retval = u132_run(u132); |
|
if (retval) { |
|
u132_disable(u132); |
|
u132->going = 1; |
|
} |
|
msleep(100); |
|
mutex_unlock(&u132->sw_lock); |
|
return retval; |
|
} else { |
|
dev_err(&u132->platform_dev->dev, "platform_device missing\n"); |
|
return -ENODEV; |
|
} |
|
} |
|
|
|
static int u132_hcd_reset(struct usb_hcd *hcd) |
|
{ |
|
struct u132 *u132 = hcd_to_u132(hcd); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
return -ENODEV; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
|
return -ESHUTDOWN; |
|
} else { |
|
int retval; |
|
mutex_lock(&u132->sw_lock); |
|
retval = u132_init(u132); |
|
if (retval) { |
|
u132_disable(u132); |
|
u132->going = 1; |
|
} |
|
mutex_unlock(&u132->sw_lock); |
|
return retval; |
|
} |
|
} |
|
|
|
static int create_endpoint_and_queue_int(struct u132 *u132, |
|
struct u132_udev *udev, struct urb *urb, |
|
struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address, |
|
gfp_t mem_flags) |
|
{ |
|
struct u132_ring *ring; |
|
unsigned long irqs; |
|
int rc; |
|
u8 endp_number; |
|
struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); |
|
|
|
if (!endp) |
|
return -ENOMEM; |
|
|
|
spin_lock_init(&endp->queue_lock.slock); |
|
spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
|
rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); |
|
if (rc) { |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
|
kfree(endp); |
|
return rc; |
|
} |
|
|
|
endp_number = ++u132->num_endpoints; |
|
urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; |
|
INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
|
INIT_LIST_HEAD(&endp->urb_more); |
|
ring = endp->ring = &u132->ring[0]; |
|
if (ring->curr_endp) { |
|
list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); |
|
} else { |
|
INIT_LIST_HEAD(&endp->endp_ring); |
|
ring->curr_endp = endp; |
|
} |
|
ring->length += 1; |
|
endp->dequeueing = 0; |
|
endp->edset_flush = 0; |
|
endp->active = 0; |
|
endp->delayed = 0; |
|
endp->endp_number = endp_number; |
|
endp->u132 = u132; |
|
endp->hep = urb->ep; |
|
endp->pipetype = usb_pipetype(urb->pipe); |
|
u132_endp_init_kref(u132, endp); |
|
if (usb_pipein(urb->pipe)) { |
|
endp->toggle_bits = 0x2; |
|
usb_settoggle(udev->usb_device, usb_endp, 0, 0); |
|
endp->input = 1; |
|
endp->output = 0; |
|
udev->endp_number_in[usb_endp] = endp_number; |
|
u132_udev_get_kref(u132, udev); |
|
} else { |
|
endp->toggle_bits = 0x2; |
|
usb_settoggle(udev->usb_device, usb_endp, 1, 0); |
|
endp->input = 0; |
|
endp->output = 1; |
|
udev->endp_number_out[usb_endp] = endp_number; |
|
u132_udev_get_kref(u132, udev); |
|
} |
|
urb->hcpriv = u132; |
|
endp->delayed = 1; |
|
endp->jiffies = jiffies + msecs_to_jiffies(urb->interval); |
|
endp->udev_number = address; |
|
endp->usb_addr = usb_addr; |
|
endp->usb_endp = usb_endp; |
|
endp->queue_size = 1; |
|
endp->queue_last = 0; |
|
endp->queue_next = 0; |
|
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
|
u132_endp_queue_work(u132, endp, msecs_to_jiffies(urb->interval)); |
|
return 0; |
|
} |
|
|
|
static int queue_int_on_old_endpoint(struct u132 *u132, |
|
struct u132_udev *udev, struct urb *urb, |
|
struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
|
u8 usb_endp, u8 address) |
|
{ |
|
urb->hcpriv = u132; |
|
endp->delayed = 1; |
|
endp->jiffies = jiffies + msecs_to_jiffies(urb->interval); |
|
if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
|
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
|
} else { |
|
struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq), |
|
GFP_ATOMIC); |
|
if (urbq == NULL) { |
|
endp->queue_size -= 1; |
|
return -ENOMEM; |
|
} else { |
|
list_add_tail(&urbq->urb_more, &endp->urb_more); |
|
urbq->urb = urb; |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
static int create_endpoint_and_queue_bulk(struct u132 *u132, |
|
struct u132_udev *udev, struct urb *urb, |
|
struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address, |
|
gfp_t mem_flags) |
|
{ |
|
int ring_number; |
|
struct u132_ring *ring; |
|
unsigned long irqs; |
|
int rc; |
|
u8 endp_number; |
|
struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); |
|
|
|
if (!endp) |
|
return -ENOMEM; |
|
|
|
spin_lock_init(&endp->queue_lock.slock); |
|
spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
|
rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); |
|
if (rc) { |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
|
kfree(endp); |
|
return rc; |
|
} |
|
|
|
endp_number = ++u132->num_endpoints; |
|
urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; |
|
INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
|
INIT_LIST_HEAD(&endp->urb_more); |
|
endp->dequeueing = 0; |
|
endp->edset_flush = 0; |
|
endp->active = 0; |
|
endp->delayed = 0; |
|
endp->endp_number = endp_number; |
|
endp->u132 = u132; |
|
endp->hep = urb->ep; |
|
endp->pipetype = usb_pipetype(urb->pipe); |
|
u132_endp_init_kref(u132, endp); |
|
if (usb_pipein(urb->pipe)) { |
|
endp->toggle_bits = 0x2; |
|
usb_settoggle(udev->usb_device, usb_endp, 0, 0); |
|
ring_number = 3; |
|
endp->input = 1; |
|
endp->output = 0; |
|
udev->endp_number_in[usb_endp] = endp_number; |
|
u132_udev_get_kref(u132, udev); |
|
} else { |
|
endp->toggle_bits = 0x2; |
|
usb_settoggle(udev->usb_device, usb_endp, 1, 0); |
|
ring_number = 2; |
|
endp->input = 0; |
|
endp->output = 1; |
|
udev->endp_number_out[usb_endp] = endp_number; |
|
u132_udev_get_kref(u132, udev); |
|
} |
|
ring = endp->ring = &u132->ring[ring_number - 1]; |
|
if (ring->curr_endp) { |
|
list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); |
|
} else { |
|
INIT_LIST_HEAD(&endp->endp_ring); |
|
ring->curr_endp = endp; |
|
} |
|
ring->length += 1; |
|
urb->hcpriv = u132; |
|
endp->udev_number = address; |
|
endp->usb_addr = usb_addr; |
|
endp->usb_endp = usb_endp; |
|
endp->queue_size = 1; |
|
endp->queue_last = 0; |
|
endp->queue_next = 0; |
|
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
|
u132_endp_queue_work(u132, endp, 0); |
|
return 0; |
|
} |
|
|
|
static int queue_bulk_on_old_endpoint(struct u132 *u132, struct u132_udev *udev, |
|
struct urb *urb, |
|
struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
|
u8 usb_endp, u8 address) |
|
{ |
|
urb->hcpriv = u132; |
|
if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
|
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
|
} else { |
|
struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq), |
|
GFP_ATOMIC); |
|
if (urbq == NULL) { |
|
endp->queue_size -= 1; |
|
return -ENOMEM; |
|
} else { |
|
list_add_tail(&urbq->urb_more, &endp->urb_more); |
|
urbq->urb = urb; |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
static int create_endpoint_and_queue_control(struct u132 *u132, |
|
struct urb *urb, |
|
struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, |
|
gfp_t mem_flags) |
|
{ |
|
struct u132_ring *ring; |
|
unsigned long irqs; |
|
int rc; |
|
u8 endp_number; |
|
struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); |
|
|
|
if (!endp) |
|
return -ENOMEM; |
|
|
|
spin_lock_init(&endp->queue_lock.slock); |
|
spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
|
rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); |
|
if (rc) { |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
|
kfree(endp); |
|
return rc; |
|
} |
|
|
|
endp_number = ++u132->num_endpoints; |
|
urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; |
|
INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
|
INIT_LIST_HEAD(&endp->urb_more); |
|
ring = endp->ring = &u132->ring[0]; |
|
if (ring->curr_endp) { |
|
list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); |
|
} else { |
|
INIT_LIST_HEAD(&endp->endp_ring); |
|
ring->curr_endp = endp; |
|
} |
|
ring->length += 1; |
|
endp->dequeueing = 0; |
|
endp->edset_flush = 0; |
|
endp->active = 0; |
|
endp->delayed = 0; |
|
endp->endp_number = endp_number; |
|
endp->u132 = u132; |
|
endp->hep = urb->ep; |
|
u132_endp_init_kref(u132, endp); |
|
u132_endp_get_kref(u132, endp); |
|
if (usb_addr == 0) { |
|
u8 address = u132->addr[usb_addr].address; |
|
struct u132_udev *udev = &u132->udev[address]; |
|
endp->udev_number = address; |
|
endp->usb_addr = usb_addr; |
|
endp->usb_endp = usb_endp; |
|
endp->input = 1; |
|
endp->output = 1; |
|
endp->pipetype = usb_pipetype(urb->pipe); |
|
u132_udev_init_kref(u132, udev); |
|
u132_udev_get_kref(u132, udev); |
|
udev->endp_number_in[usb_endp] = endp_number; |
|
udev->endp_number_out[usb_endp] = endp_number; |
|
urb->hcpriv = u132; |
|
endp->queue_size = 1; |
|
endp->queue_last = 0; |
|
endp->queue_next = 0; |
|
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
|
u132_endp_queue_work(u132, endp, 0); |
|
return 0; |
|
} else { /*(usb_addr > 0) */ |
|
u8 address = u132->addr[usb_addr].address; |
|
struct u132_udev *udev = &u132->udev[address]; |
|
endp->udev_number = address; |
|
endp->usb_addr = usb_addr; |
|
endp->usb_endp = usb_endp; |
|
endp->input = 1; |
|
endp->output = 1; |
|
endp->pipetype = usb_pipetype(urb->pipe); |
|
u132_udev_get_kref(u132, udev); |
|
udev->enumeration = 2; |
|
udev->endp_number_in[usb_endp] = endp_number; |
|
udev->endp_number_out[usb_endp] = endp_number; |
|
urb->hcpriv = u132; |
|
endp->queue_size = 1; |
|
endp->queue_last = 0; |
|
endp->queue_next = 0; |
|
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
|
u132_endp_queue_work(u132, endp, 0); |
|
return 0; |
|
} |
|
} |
|
|
|
static int queue_control_on_old_endpoint(struct u132 *u132, |
|
struct urb *urb, |
|
struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
|
u8 usb_endp) |
|
{ |
|
if (usb_addr == 0) { |
|
if (usb_pipein(urb->pipe)) { |
|
urb->hcpriv = u132; |
|
if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
|
endp->urb_list[ENDP_QUEUE_MASK & |
|
endp->queue_last++] = urb; |
|
} else { |
|
struct u132_urbq *urbq = |
|
kmalloc(sizeof(struct u132_urbq), |
|
GFP_ATOMIC); |
|
if (urbq == NULL) { |
|
endp->queue_size -= 1; |
|
return -ENOMEM; |
|
} else { |
|
list_add_tail(&urbq->urb_more, |
|
&endp->urb_more); |
|
urbq->urb = urb; |
|
} |
|
} |
|
return 0; |
|
} else { /* usb_pipeout(urb->pipe) */ |
|
struct u132_addr *addr = &u132->addr[usb_dev->devnum]; |
|
int I = MAX_U132_UDEVS; |
|
int i = 0; |
|
while (--I > 0) { |
|
struct u132_udev *udev = &u132->udev[++i]; |
|
if (udev->usb_device) { |
|
continue; |
|
} else { |
|
udev->enumeration = 1; |
|
u132->addr[0].address = i; |
|
endp->udev_number = i; |
|
udev->udev_number = i; |
|
udev->usb_addr = usb_dev->devnum; |
|
u132_udev_init_kref(u132, udev); |
|
udev->endp_number_in[usb_endp] = |
|
endp->endp_number; |
|
u132_udev_get_kref(u132, udev); |
|
udev->endp_number_out[usb_endp] = |
|
endp->endp_number; |
|
udev->usb_device = usb_dev; |
|
((u8 *) (urb->setup_packet))[2] = |
|
addr->address = i; |
|
u132_udev_get_kref(u132, udev); |
|
break; |
|
} |
|
} |
|
if (I == 0) { |
|
dev_err(&u132->platform_dev->dev, "run out of d" |
|
"evice space\n"); |
|
return -EINVAL; |
|
} |
|
urb->hcpriv = u132; |
|
if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
|
endp->urb_list[ENDP_QUEUE_MASK & |
|
endp->queue_last++] = urb; |
|
} else { |
|
struct u132_urbq *urbq = |
|
kmalloc(sizeof(struct u132_urbq), |
|
GFP_ATOMIC); |
|
if (urbq == NULL) { |
|
endp->queue_size -= 1; |
|
return -ENOMEM; |
|
} else { |
|
list_add_tail(&urbq->urb_more, |
|
&endp->urb_more); |
|
urbq->urb = urb; |
|
} |
|
} |
|
return 0; |
|
} |
|
} else { /*(usb_addr > 0) */ |
|
u8 address = u132->addr[usb_addr].address; |
|
struct u132_udev *udev = &u132->udev[address]; |
|
urb->hcpriv = u132; |
|
if (udev->enumeration != 2) |
|
udev->enumeration = 2; |
|
if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
|
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = |
|
urb; |
|
} else { |
|
struct u132_urbq *urbq = |
|
kmalloc(sizeof(struct u132_urbq), GFP_ATOMIC); |
|
if (urbq == NULL) { |
|
endp->queue_size -= 1; |
|
return -ENOMEM; |
|
} else { |
|
list_add_tail(&urbq->urb_more, &endp->urb_more); |
|
urbq->urb = urb; |
|
} |
|
} |
|
return 0; |
|
} |
|
} |
|
|
|
static int u132_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, |
|
gfp_t mem_flags) |
|
{ |
|
struct u132 *u132 = hcd_to_u132(hcd); |
|
if (irqs_disabled()) { |
|
if (gfpflags_allow_blocking(mem_flags)) { |
|
printk(KERN_ERR "invalid context for function that might sleep\n"); |
|
return -EINVAL; |
|
} |
|
} |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
return -ENODEV; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed " |
|
"urb=%p\n", urb); |
|
return -ESHUTDOWN; |
|
} else { |
|
u8 usb_addr = usb_pipedevice(urb->pipe); |
|
u8 usb_endp = usb_pipeendpoint(urb->pipe); |
|
struct usb_device *usb_dev = urb->dev; |
|
if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) { |
|
u8 address = u132->addr[usb_addr].address; |
|
struct u132_udev *udev = &u132->udev[address]; |
|
struct u132_endp *endp = urb->ep->hcpriv; |
|
urb->actual_length = 0; |
|
if (endp) { |
|
unsigned long irqs; |
|
int retval; |
|
spin_lock_irqsave(&endp->queue_lock.slock, |
|
irqs); |
|
retval = usb_hcd_link_urb_to_ep(hcd, urb); |
|
if (retval == 0) { |
|
retval = queue_int_on_old_endpoint( |
|
u132, udev, urb, |
|
usb_dev, endp, |
|
usb_addr, usb_endp, |
|
address); |
|
if (retval) |
|
usb_hcd_unlink_urb_from_ep( |
|
hcd, urb); |
|
} |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, |
|
irqs); |
|
if (retval) { |
|
return retval; |
|
} else { |
|
u132_endp_queue_work(u132, endp, |
|
msecs_to_jiffies(urb->interval)) |
|
; |
|
return 0; |
|
} |
|
} else if (u132->num_endpoints == MAX_U132_ENDPS) { |
|
return -EINVAL; |
|
} else { /*(endp == NULL) */ |
|
return create_endpoint_and_queue_int(u132, udev, |
|
urb, usb_dev, usb_addr, |
|
usb_endp, address, mem_flags); |
|
} |
|
} else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { |
|
dev_err(&u132->platform_dev->dev, "the hardware does no" |
|
"t support PIPE_ISOCHRONOUS\n"); |
|
return -EINVAL; |
|
} else if (usb_pipetype(urb->pipe) == PIPE_BULK) { |
|
u8 address = u132->addr[usb_addr].address; |
|
struct u132_udev *udev = &u132->udev[address]; |
|
struct u132_endp *endp = urb->ep->hcpriv; |
|
urb->actual_length = 0; |
|
if (endp) { |
|
unsigned long irqs; |
|
int retval; |
|
spin_lock_irqsave(&endp->queue_lock.slock, |
|
irqs); |
|
retval = usb_hcd_link_urb_to_ep(hcd, urb); |
|
if (retval == 0) { |
|
retval = queue_bulk_on_old_endpoint( |
|
u132, udev, urb, |
|
usb_dev, endp, |
|
usb_addr, usb_endp, |
|
address); |
|
if (retval) |
|
usb_hcd_unlink_urb_from_ep( |
|
hcd, urb); |
|
} |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, |
|
irqs); |
|
if (retval) { |
|
return retval; |
|
} else { |
|
u132_endp_queue_work(u132, endp, 0); |
|
return 0; |
|
} |
|
} else if (u132->num_endpoints == MAX_U132_ENDPS) { |
|
return -EINVAL; |
|
} else |
|
return create_endpoint_and_queue_bulk(u132, |
|
udev, urb, usb_dev, usb_addr, |
|
usb_endp, address, mem_flags); |
|
} else { |
|
struct u132_endp *endp = urb->ep->hcpriv; |
|
u16 urb_size = 8; |
|
u8 *b = urb->setup_packet; |
|
int i = 0; |
|
char data[30 * 3 + 4]; |
|
char *d = data; |
|
int m = (sizeof(data) - 1) / 3; |
|
int l = 0; |
|
data[0] = 0; |
|
while (urb_size-- > 0) { |
|
if (i > m) { |
|
} else if (i++ < m) { |
|
int w = sprintf(d, " %02X", *b++); |
|
d += w; |
|
l += w; |
|
} else |
|
d += sprintf(d, " .."); |
|
} |
|
if (endp) { |
|
unsigned long irqs; |
|
int retval; |
|
spin_lock_irqsave(&endp->queue_lock.slock, |
|
irqs); |
|
retval = usb_hcd_link_urb_to_ep(hcd, urb); |
|
if (retval == 0) { |
|
retval = queue_control_on_old_endpoint( |
|
u132, urb, usb_dev, |
|
endp, usb_addr, |
|
usb_endp); |
|
if (retval) |
|
usb_hcd_unlink_urb_from_ep( |
|
hcd, urb); |
|
} |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, |
|
irqs); |
|
if (retval) { |
|
return retval; |
|
} else { |
|
u132_endp_queue_work(u132, endp, 0); |
|
return 0; |
|
} |
|
} else if (u132->num_endpoints == MAX_U132_ENDPS) { |
|
return -EINVAL; |
|
} else |
|
return create_endpoint_and_queue_control(u132, |
|
urb, usb_dev, usb_addr, usb_endp, |
|
mem_flags); |
|
} |
|
} |
|
} |
|
|
|
static int dequeue_from_overflow_chain(struct u132 *u132, |
|
struct u132_endp *endp, struct urb *urb) |
|
{ |
|
struct u132_urbq *urbq; |
|
|
|
list_for_each_entry(urbq, &endp->urb_more, urb_more) { |
|
if (urbq->urb == urb) { |
|
struct usb_hcd *hcd = u132_to_hcd(u132); |
|
list_del(&urbq->urb_more); |
|
endp->queue_size -= 1; |
|
urb->error_count = 0; |
|
usb_hcd_giveback_urb(hcd, urb, 0); |
|
return 0; |
|
} else |
|
continue; |
|
} |
|
dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]=%p ring" |
|
"[%d] %c%c usb_endp=%d usb_addr=%d size=%d next=%04X last=%04X" |
|
"\n", urb, endp->endp_number, endp, endp->ring->number, |
|
endp->input ? 'I' : ' ', endp->output ? 'O' : ' ', |
|
endp->usb_endp, endp->usb_addr, endp->queue_size, |
|
endp->queue_next, endp->queue_last); |
|
return -EINVAL; |
|
} |
|
|
|
static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp, |
|
struct urb *urb, int status) |
|
{ |
|
unsigned long irqs; |
|
int rc; |
|
|
|
spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
|
rc = usb_hcd_check_unlink_urb(u132_to_hcd(u132), urb, status); |
|
if (rc) { |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
|
return rc; |
|
} |
|
if (endp->queue_size == 0) { |
|
dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]" |
|
"=%p ring[%d] %c%c usb_endp=%d usb_addr=%d\n", urb, |
|
endp->endp_number, endp, endp->ring->number, |
|
endp->input ? 'I' : ' ', endp->output ? 'O' : ' ', |
|
endp->usb_endp, endp->usb_addr); |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
|
return -EINVAL; |
|
} |
|
if (urb == endp->urb_list[ENDP_QUEUE_MASK & endp->queue_next]) { |
|
if (endp->active) { |
|
endp->dequeueing = 1; |
|
endp->edset_flush = 1; |
|
u132_endp_queue_work(u132, endp, 0); |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
|
return 0; |
|
} else { |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
|
u132_hcd_abandon_urb(u132, endp, urb, status); |
|
return 0; |
|
} |
|
} else { |
|
u16 queue_list = 0; |
|
u16 queue_size = endp->queue_size; |
|
u16 queue_scan = endp->queue_next; |
|
struct urb **urb_slot = NULL; |
|
while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) { |
|
if (urb == endp->urb_list[ENDP_QUEUE_MASK & |
|
++queue_scan]) { |
|
urb_slot = &endp->urb_list[ENDP_QUEUE_MASK & |
|
queue_scan]; |
|
break; |
|
} else |
|
continue; |
|
} |
|
while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) { |
|
*urb_slot = endp->urb_list[ENDP_QUEUE_MASK & |
|
++queue_scan]; |
|
urb_slot = &endp->urb_list[ENDP_QUEUE_MASK & |
|
queue_scan]; |
|
} |
|
if (urb_slot) { |
|
struct usb_hcd *hcd = u132_to_hcd(u132); |
|
|
|
usb_hcd_unlink_urb_from_ep(hcd, urb); |
|
endp->queue_size -= 1; |
|
if (list_empty(&endp->urb_more)) { |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, |
|
irqs); |
|
} else { |
|
struct list_head *next = endp->urb_more.next; |
|
struct u132_urbq *urbq = list_entry(next, |
|
struct u132_urbq, urb_more); |
|
list_del(next); |
|
*urb_slot = urbq->urb; |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, |
|
irqs); |
|
kfree(urbq); |
|
} |
|
urb->error_count = 0; |
|
usb_hcd_giveback_urb(hcd, urb, status); |
|
return 0; |
|
} else if (list_empty(&endp->urb_more)) { |
|
dev_err(&u132->platform_dev->dev, "urb=%p not found in " |
|
"endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr" |
|
"=%d size=%d next=%04X last=%04X\n", urb, |
|
endp->endp_number, endp, endp->ring->number, |
|
endp->input ? 'I' : ' ', |
|
endp->output ? 'O' : ' ', endp->usb_endp, |
|
endp->usb_addr, endp->queue_size, |
|
endp->queue_next, endp->queue_last); |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
|
return -EINVAL; |
|
} else { |
|
int retval; |
|
|
|
usb_hcd_unlink_urb_from_ep(u132_to_hcd(u132), urb); |
|
retval = dequeue_from_overflow_chain(u132, endp, |
|
urb); |
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
|
return retval; |
|
} |
|
} |
|
} |
|
|
|
static int u132_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) |
|
{ |
|
struct u132 *u132 = hcd_to_u132(hcd); |
|
if (u132->going > 2) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
return -ENODEV; |
|
} else { |
|
u8 usb_addr = usb_pipedevice(urb->pipe); |
|
u8 usb_endp = usb_pipeendpoint(urb->pipe); |
|
u8 address = u132->addr[usb_addr].address; |
|
struct u132_udev *udev = &u132->udev[address]; |
|
if (usb_pipein(urb->pipe)) { |
|
u8 endp_number = udev->endp_number_in[usb_endp]; |
|
struct u132_endp *endp = u132->endp[endp_number - 1]; |
|
return u132_endp_urb_dequeue(u132, endp, urb, status); |
|
} else { |
|
u8 endp_number = udev->endp_number_out[usb_endp]; |
|
struct u132_endp *endp = u132->endp[endp_number - 1]; |
|
return u132_endp_urb_dequeue(u132, endp, urb, status); |
|
} |
|
} |
|
} |
|
|
|
static void u132_endpoint_disable(struct usb_hcd *hcd, |
|
struct usb_host_endpoint *hep) |
|
{ |
|
struct u132 *u132 = hcd_to_u132(hcd); |
|
if (u132->going > 2) { |
|
dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p hep=%p" |
|
") has been removed %d\n", u132, hcd, hep, |
|
u132->going); |
|
} else { |
|
struct u132_endp *endp = hep->hcpriv; |
|
if (endp) |
|
u132_endp_put_kref(u132, endp); |
|
} |
|
} |
|
|
|
static int u132_get_frame(struct usb_hcd *hcd) |
|
{ |
|
struct u132 *u132 = hcd_to_u132(hcd); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
return -ENODEV; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
|
return -ESHUTDOWN; |
|
} else { |
|
dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n"); |
|
mdelay(100); |
|
return 0; |
|
} |
|
} |
|
|
|
static int u132_roothub_descriptor(struct u132 *u132, |
|
struct usb_hub_descriptor *desc) |
|
{ |
|
int retval; |
|
u16 temp; |
|
u32 rh_a = -1; |
|
u32 rh_b = -1; |
|
retval = u132_read_pcimem(u132, roothub.a, &rh_a); |
|
if (retval) |
|
return retval; |
|
desc->bDescriptorType = USB_DT_HUB; |
|
desc->bPwrOn2PwrGood = (rh_a & RH_A_POTPGT) >> 24; |
|
desc->bHubContrCurrent = 0; |
|
desc->bNbrPorts = u132->num_ports; |
|
temp = 1 + (u132->num_ports / 8); |
|
desc->bDescLength = 7 + 2 * temp; |
|
temp = HUB_CHAR_COMMON_LPSM | HUB_CHAR_COMMON_OCPM; |
|
if (rh_a & RH_A_NPS) |
|
temp |= HUB_CHAR_NO_LPSM; |
|
if (rh_a & RH_A_PSM) |
|
temp |= HUB_CHAR_INDV_PORT_LPSM; |
|
if (rh_a & RH_A_NOCP) |
|
temp |= HUB_CHAR_NO_OCPM; |
|
else if (rh_a & RH_A_OCPM) |
|
temp |= HUB_CHAR_INDV_PORT_OCPM; |
|
desc->wHubCharacteristics = cpu_to_le16(temp); |
|
retval = u132_read_pcimem(u132, roothub.b, &rh_b); |
|
if (retval) |
|
return retval; |
|
memset(desc->u.hs.DeviceRemovable, 0xff, |
|
sizeof(desc->u.hs.DeviceRemovable)); |
|
desc->u.hs.DeviceRemovable[0] = rh_b & RH_B_DR; |
|
if (u132->num_ports > 7) { |
|
desc->u.hs.DeviceRemovable[1] = (rh_b & RH_B_DR) >> 8; |
|
desc->u.hs.DeviceRemovable[2] = 0xff; |
|
} else |
|
desc->u.hs.DeviceRemovable[1] = 0xff; |
|
return 0; |
|
} |
|
|
|
static int u132_roothub_status(struct u132 *u132, __le32 *desc) |
|
{ |
|
u32 rh_status = -1; |
|
int ret_status = u132_read_pcimem(u132, roothub.status, &rh_status); |
|
*desc = cpu_to_le32(rh_status); |
|
return ret_status; |
|
} |
|
|
|
static int u132_roothub_portstatus(struct u132 *u132, __le32 *desc, u16 wIndex) |
|
{ |
|
if (wIndex == 0 || wIndex > u132->num_ports) { |
|
return -EINVAL; |
|
} else { |
|
int port = wIndex - 1; |
|
u32 rh_portstatus = -1; |
|
int ret_portstatus = u132_read_pcimem(u132, |
|
roothub.portstatus[port], &rh_portstatus); |
|
*desc = cpu_to_le32(rh_portstatus); |
|
if (*(u16 *) (desc + 2)) { |
|
dev_info(&u132->platform_dev->dev, "Port %d Status Chan" |
|
"ge = %08X\n", port, *desc); |
|
} |
|
return ret_portstatus; |
|
} |
|
} |
|
|
|
|
|
/* this timer value might be vendor-specific ... */ |
|
#define PORT_RESET_HW_MSEC 10 |
|
#define PORT_RESET_MSEC 10 |
|
/* wrap-aware logic morphed from <linux/jiffies.h> */ |
|
#define tick_before(t1, t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0) |
|
static int u132_roothub_portreset(struct u132 *u132, int port_index) |
|
{ |
|
int retval; |
|
u32 fmnumber; |
|
u16 now; |
|
u16 reset_done; |
|
retval = u132_read_pcimem(u132, fmnumber, &fmnumber); |
|
if (retval) |
|
return retval; |
|
now = fmnumber; |
|
reset_done = now + PORT_RESET_MSEC; |
|
do { |
|
u32 portstat; |
|
do { |
|
retval = u132_read_pcimem(u132, |
|
roothub.portstatus[port_index], &portstat); |
|
if (retval) |
|
return retval; |
|
if (RH_PS_PRS & portstat) |
|
continue; |
|
else |
|
break; |
|
} while (tick_before(now, reset_done)); |
|
if (RH_PS_PRS & portstat) |
|
return -ENODEV; |
|
if (RH_PS_CCS & portstat) { |
|
if (RH_PS_PRSC & portstat) { |
|
retval = u132_write_pcimem(u132, |
|
roothub.portstatus[port_index], |
|
RH_PS_PRSC); |
|
if (retval) |
|
return retval; |
|
} |
|
} else |
|
break; /* start the next reset, |
|
sleep till it's probably done */ |
|
retval = u132_write_pcimem(u132, roothub.portstatus[port_index], |
|
RH_PS_PRS); |
|
if (retval) |
|
return retval; |
|
msleep(PORT_RESET_HW_MSEC); |
|
retval = u132_read_pcimem(u132, fmnumber, &fmnumber); |
|
if (retval) |
|
return retval; |
|
now = fmnumber; |
|
} while (tick_before(now, reset_done)); |
|
return 0; |
|
} |
|
|
|
static int u132_roothub_setportfeature(struct u132 *u132, u16 wValue, |
|
u16 wIndex) |
|
{ |
|
if (wIndex == 0 || wIndex > u132->num_ports) { |
|
return -EINVAL; |
|
} else { |
|
int port_index = wIndex - 1; |
|
struct u132_port *port = &u132->port[port_index]; |
|
port->Status &= ~(1 << wValue); |
|
switch (wValue) { |
|
case USB_PORT_FEAT_SUSPEND: |
|
return u132_write_pcimem(u132, |
|
roothub.portstatus[port_index], RH_PS_PSS); |
|
case USB_PORT_FEAT_POWER: |
|
return u132_write_pcimem(u132, |
|
roothub.portstatus[port_index], RH_PS_PPS); |
|
case USB_PORT_FEAT_RESET: |
|
return u132_roothub_portreset(u132, port_index); |
|
default: |
|
return -EPIPE; |
|
} |
|
} |
|
} |
|
|
|
static int u132_roothub_clearportfeature(struct u132 *u132, u16 wValue, |
|
u16 wIndex) |
|
{ |
|
if (wIndex == 0 || wIndex > u132->num_ports) { |
|
return -EINVAL; |
|
} else { |
|
int port_index = wIndex - 1; |
|
u32 temp; |
|
struct u132_port *port = &u132->port[port_index]; |
|
port->Status &= ~(1 << wValue); |
|
switch (wValue) { |
|
case USB_PORT_FEAT_ENABLE: |
|
temp = RH_PS_CCS; |
|
break; |
|
case USB_PORT_FEAT_C_ENABLE: |
|
temp = RH_PS_PESC; |
|
break; |
|
case USB_PORT_FEAT_SUSPEND: |
|
temp = RH_PS_POCI; |
|
if ((u132->hc_control & OHCI_CTRL_HCFS) |
|
!= OHCI_USB_OPER) { |
|
dev_err(&u132->platform_dev->dev, "TODO resume_" |
|
"root_hub\n"); |
|
} |
|
break; |
|
case USB_PORT_FEAT_C_SUSPEND: |
|
temp = RH_PS_PSSC; |
|
break; |
|
case USB_PORT_FEAT_POWER: |
|
temp = RH_PS_LSDA; |
|
break; |
|
case USB_PORT_FEAT_C_CONNECTION: |
|
temp = RH_PS_CSC; |
|
break; |
|
case USB_PORT_FEAT_C_OVER_CURRENT: |
|
temp = RH_PS_OCIC; |
|
break; |
|
case USB_PORT_FEAT_C_RESET: |
|
temp = RH_PS_PRSC; |
|
break; |
|
default: |
|
return -EPIPE; |
|
} |
|
return u132_write_pcimem(u132, roothub.portstatus[port_index], |
|
temp); |
|
} |
|
} |
|
|
|
|
|
/* the virtual root hub timer IRQ checks for hub status*/ |
|
static int u132_hub_status_data(struct usb_hcd *hcd, char *buf) |
|
{ |
|
struct u132 *u132 = hcd_to_u132(hcd); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device hcd=%p has been remov" |
|
"ed %d\n", hcd, u132->going); |
|
return -ENODEV; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" |
|
"ed\n", hcd); |
|
return -ESHUTDOWN; |
|
} else { |
|
int i, changed = 0, length = 1; |
|
if (u132->flags & OHCI_QUIRK_AMD756) { |
|
if ((u132->hc_roothub_a & RH_A_NDP) > MAX_ROOT_PORTS) { |
|
dev_err(&u132->platform_dev->dev, "bogus NDP, r" |
|
"ereads as NDP=%d\n", |
|
u132->hc_roothub_a & RH_A_NDP); |
|
goto done; |
|
} |
|
} |
|
if (u132->hc_roothub_status & (RH_HS_LPSC | RH_HS_OCIC)) |
|
buf[0] = changed = 1; |
|
else |
|
buf[0] = 0; |
|
if (u132->num_ports > 7) { |
|
buf[1] = 0; |
|
length++; |
|
} |
|
for (i = 0; i < u132->num_ports; i++) { |
|
if (u132->hc_roothub_portstatus[i] & (RH_PS_CSC | |
|
RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC | |
|
RH_PS_PRSC)) { |
|
changed = 1; |
|
if (i < 7) |
|
buf[0] |= 1 << (i + 1); |
|
else |
|
buf[1] |= 1 << (i - 7); |
|
continue; |
|
} |
|
if (!(u132->hc_roothub_portstatus[i] & RH_PS_CCS)) |
|
continue; |
|
|
|
if ((u132->hc_roothub_portstatus[i] & RH_PS_PSS)) |
|
continue; |
|
} |
|
done: |
|
return changed ? length : 0; |
|
} |
|
} |
|
|
|
static int u132_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, |
|
u16 wIndex, char *buf, u16 wLength) |
|
{ |
|
struct u132 *u132 = hcd_to_u132(hcd); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
return -ENODEV; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
|
return -ESHUTDOWN; |
|
} else { |
|
int retval = 0; |
|
mutex_lock(&u132->sw_lock); |
|
switch (typeReq) { |
|
case ClearHubFeature: |
|
switch (wValue) { |
|
case C_HUB_OVER_CURRENT: |
|
case C_HUB_LOCAL_POWER: |
|
break; |
|
default: |
|
goto stall; |
|
} |
|
break; |
|
case SetHubFeature: |
|
switch (wValue) { |
|
case C_HUB_OVER_CURRENT: |
|
case C_HUB_LOCAL_POWER: |
|
break; |
|
default: |
|
goto stall; |
|
} |
|
break; |
|
case ClearPortFeature:{ |
|
retval = u132_roothub_clearportfeature(u132, |
|
wValue, wIndex); |
|
if (retval) |
|
goto error; |
|
break; |
|
} |
|
case GetHubDescriptor:{ |
|
retval = u132_roothub_descriptor(u132, |
|
(struct usb_hub_descriptor *)buf); |
|
if (retval) |
|
goto error; |
|
break; |
|
} |
|
case GetHubStatus:{ |
|
retval = u132_roothub_status(u132, |
|
(__le32 *) buf); |
|
if (retval) |
|
goto error; |
|
break; |
|
} |
|
case GetPortStatus:{ |
|
retval = u132_roothub_portstatus(u132, |
|
(__le32 *) buf, wIndex); |
|
if (retval) |
|
goto error; |
|
break; |
|
} |
|
case SetPortFeature:{ |
|
retval = u132_roothub_setportfeature(u132, |
|
wValue, wIndex); |
|
if (retval) |
|
goto error; |
|
break; |
|
} |
|
default: |
|
goto stall; |
|
error: |
|
u132_disable(u132); |
|
u132->going = 1; |
|
break; |
|
stall: |
|
retval = -EPIPE; |
|
break; |
|
} |
|
mutex_unlock(&u132->sw_lock); |
|
return retval; |
|
} |
|
} |
|
|
|
static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num) |
|
{ |
|
struct u132 *u132 = hcd_to_u132(hcd); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
return -ENODEV; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
|
return -ESHUTDOWN; |
|
} else |
|
return 0; |
|
} |
|
|
|
|
|
#ifdef CONFIG_PM |
|
static int u132_bus_suspend(struct usb_hcd *hcd) |
|
{ |
|
struct u132 *u132 = hcd_to_u132(hcd); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
return -ENODEV; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
|
return -ESHUTDOWN; |
|
} else |
|
return 0; |
|
} |
|
|
|
static int u132_bus_resume(struct usb_hcd *hcd) |
|
{ |
|
struct u132 *u132 = hcd_to_u132(hcd); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
return -ENODEV; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
|
return -ESHUTDOWN; |
|
} else |
|
return 0; |
|
} |
|
|
|
#else |
|
#define u132_bus_suspend NULL |
|
#define u132_bus_resume NULL |
|
#endif |
|
static const struct hc_driver u132_hc_driver = { |
|
.description = hcd_name, |
|
.hcd_priv_size = sizeof(struct u132), |
|
.irq = NULL, |
|
.flags = HCD_USB11 | HCD_MEMORY, |
|
.reset = u132_hcd_reset, |
|
.start = u132_hcd_start, |
|
.stop = u132_hcd_stop, |
|
.urb_enqueue = u132_urb_enqueue, |
|
.urb_dequeue = u132_urb_dequeue, |
|
.endpoint_disable = u132_endpoint_disable, |
|
.get_frame_number = u132_get_frame, |
|
.hub_status_data = u132_hub_status_data, |
|
.hub_control = u132_hub_control, |
|
.bus_suspend = u132_bus_suspend, |
|
.bus_resume = u132_bus_resume, |
|
.start_port_reset = u132_start_port_reset, |
|
}; |
|
|
|
/* |
|
* This function may be called by the USB core whilst the "usb_all_devices_rwsem" |
|
* is held for writing, thus this module must not call usb_remove_hcd() |
|
* synchronously - but instead should immediately stop activity to the |
|
* device and asynchronously call usb_remove_hcd() |
|
*/ |
|
static int u132_remove(struct platform_device *pdev) |
|
{ |
|
struct usb_hcd *hcd = platform_get_drvdata(pdev); |
|
if (hcd) { |
|
struct u132 *u132 = hcd_to_u132(hcd); |
|
if (u132->going++ > 1) { |
|
dev_err(&u132->platform_dev->dev, "already being remove" |
|
"d\n"); |
|
return -ENODEV; |
|
} else { |
|
int rings = MAX_U132_RINGS; |
|
int endps = MAX_U132_ENDPS; |
|
dev_err(&u132->platform_dev->dev, "removing device u132" |
|
".%d\n", u132->sequence_num); |
|
msleep(100); |
|
mutex_lock(&u132->sw_lock); |
|
u132_monitor_cancel_work(u132); |
|
while (rings-- > 0) { |
|
struct u132_ring *ring = &u132->ring[rings]; |
|
u132_ring_cancel_work(u132, ring); |
|
} |
|
while (endps-- > 0) { |
|
struct u132_endp *endp = u132->endp[endps]; |
|
if (endp) |
|
u132_endp_cancel_work(u132, endp); |
|
} |
|
u132->going += 1; |
|
printk(KERN_INFO "removing device u132.%d\n", |
|
u132->sequence_num); |
|
mutex_unlock(&u132->sw_lock); |
|
usb_remove_hcd(hcd); |
|
u132_u132_put_kref(u132); |
|
return 0; |
|
} |
|
} else |
|
return 0; |
|
} |
|
|
|
static void u132_initialise(struct u132 *u132, struct platform_device *pdev) |
|
{ |
|
int rings = MAX_U132_RINGS; |
|
int ports = MAX_U132_PORTS; |
|
int addrs = MAX_U132_ADDRS; |
|
int udevs = MAX_U132_UDEVS; |
|
int endps = MAX_U132_ENDPS; |
|
u132->board = dev_get_platdata(&pdev->dev); |
|
u132->platform_dev = pdev; |
|
u132->power = 0; |
|
u132->reset = 0; |
|
mutex_init(&u132->sw_lock); |
|
mutex_init(&u132->scheduler_lock); |
|
while (rings-- > 0) { |
|
struct u132_ring *ring = &u132->ring[rings]; |
|
ring->u132 = u132; |
|
ring->number = rings + 1; |
|
ring->length = 0; |
|
ring->curr_endp = NULL; |
|
INIT_DELAYED_WORK(&ring->scheduler, |
|
u132_hcd_ring_work_scheduler); |
|
} |
|
mutex_lock(&u132->sw_lock); |
|
INIT_DELAYED_WORK(&u132->monitor, u132_hcd_monitor_work); |
|
while (ports-- > 0) { |
|
struct u132_port *port = &u132->port[ports]; |
|
port->u132 = u132; |
|
port->reset = 0; |
|
port->enable = 0; |
|
port->power = 0; |
|
port->Status = 0; |
|
} |
|
while (addrs-- > 0) { |
|
struct u132_addr *addr = &u132->addr[addrs]; |
|
addr->address = 0; |
|
} |
|
while (udevs-- > 0) { |
|
struct u132_udev *udev = &u132->udev[udevs]; |
|
int i = ARRAY_SIZE(udev->endp_number_in); |
|
int o = ARRAY_SIZE(udev->endp_number_out); |
|
udev->usb_device = NULL; |
|
udev->udev_number = 0; |
|
udev->usb_addr = 0; |
|
udev->portnumber = 0; |
|
while (i-- > 0) |
|
udev->endp_number_in[i] = 0; |
|
|
|
while (o-- > 0) |
|
udev->endp_number_out[o] = 0; |
|
|
|
} |
|
while (endps-- > 0) |
|
u132->endp[endps] = NULL; |
|
|
|
mutex_unlock(&u132->sw_lock); |
|
} |
|
|
|
static int u132_probe(struct platform_device *pdev) |
|
{ |
|
struct usb_hcd *hcd; |
|
int retval; |
|
u32 control; |
|
u32 rh_a = -1; |
|
|
|
msleep(100); |
|
if (u132_exiting > 0) |
|
return -ENODEV; |
|
|
|
retval = ftdi_write_pcimem(pdev, intrdisable, OHCI_INTR_MIE); |
|
if (retval) |
|
return retval; |
|
retval = ftdi_read_pcimem(pdev, control, &control); |
|
if (retval) |
|
return retval; |
|
retval = ftdi_read_pcimem(pdev, roothub.a, &rh_a); |
|
if (retval) |
|
return retval; |
|
|
|
hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, dev_name(&pdev->dev)); |
|
if (!hcd) { |
|
printk(KERN_ERR "failed to create the usb hcd struct for U132\n" |
|
); |
|
ftdi_elan_gone_away(pdev); |
|
return -ENOMEM; |
|
} else { |
|
struct u132 *u132 = hcd_to_u132(hcd); |
|
retval = 0; |
|
hcd->rsrc_start = 0; |
|
mutex_lock(&u132_module_lock); |
|
u132->sequence_num = ++u132_instances; |
|
mutex_unlock(&u132_module_lock); |
|
u132_u132_init_kref(u132); |
|
u132_initialise(u132, pdev); |
|
hcd->product_desc = "ELAN U132 Host Controller"; |
|
retval = usb_add_hcd(hcd, 0, 0); |
|
if (retval != 0) { |
|
dev_err(&u132->platform_dev->dev, "init error %d\n", |
|
retval); |
|
u132_u132_put_kref(u132); |
|
return retval; |
|
} else { |
|
device_wakeup_enable(hcd->self.controller); |
|
u132_monitor_queue_work(u132, 100); |
|
return 0; |
|
} |
|
} |
|
} |
|
|
|
|
|
#ifdef CONFIG_PM |
|
/* |
|
* for this device there's no useful distinction between the controller |
|
* and its root hub. |
|
*/ |
|
static int u132_suspend(struct platform_device *pdev, pm_message_t state) |
|
{ |
|
struct usb_hcd *hcd = platform_get_drvdata(pdev); |
|
struct u132 *u132 = hcd_to_u132(hcd); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
return -ENODEV; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
|
return -ESHUTDOWN; |
|
} else { |
|
int retval = 0, ports; |
|
|
|
switch (state.event) { |
|
case PM_EVENT_FREEZE: |
|
retval = u132_bus_suspend(hcd); |
|
break; |
|
case PM_EVENT_SUSPEND: |
|
case PM_EVENT_HIBERNATE: |
|
ports = MAX_U132_PORTS; |
|
while (ports-- > 0) { |
|
port_power(u132, ports, 0); |
|
} |
|
break; |
|
} |
|
return retval; |
|
} |
|
} |
|
|
|
static int u132_resume(struct platform_device *pdev) |
|
{ |
|
struct usb_hcd *hcd = platform_get_drvdata(pdev); |
|
struct u132 *u132 = hcd_to_u132(hcd); |
|
if (u132->going > 1) { |
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
|
, u132->going); |
|
return -ENODEV; |
|
} else if (u132->going > 0) { |
|
dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
|
return -ESHUTDOWN; |
|
} else { |
|
int retval = 0; |
|
if (!u132->port[0].power) { |
|
int ports = MAX_U132_PORTS; |
|
while (ports-- > 0) { |
|
port_power(u132, ports, 1); |
|
} |
|
retval = 0; |
|
} else { |
|
retval = u132_bus_resume(hcd); |
|
} |
|
return retval; |
|
} |
|
} |
|
|
|
#else |
|
#define u132_suspend NULL |
|
#define u132_resume NULL |
|
#endif |
|
/* |
|
* this driver is loaded explicitly by ftdi_u132 |
|
* |
|
* the platform_driver struct is static because it is per type of module |
|
*/ |
|
static struct platform_driver u132_platform_driver = { |
|
.probe = u132_probe, |
|
.remove = u132_remove, |
|
.suspend = u132_suspend, |
|
.resume = u132_resume, |
|
.driver = { |
|
.name = hcd_name, |
|
}, |
|
}; |
|
static int __init u132_hcd_init(void) |
|
{ |
|
int retval; |
|
u132_instances = 0; |
|
u132_exiting = 0; |
|
mutex_init(&u132_module_lock); |
|
if (usb_disabled()) |
|
return -ENODEV; |
|
printk(KERN_INFO "driver %s\n", hcd_name); |
|
workqueue = create_singlethread_workqueue("u132"); |
|
if (!workqueue) |
|
return -ENOMEM; |
|
retval = platform_driver_register(&u132_platform_driver); |
|
if (retval) |
|
destroy_workqueue(workqueue); |
|
|
|
return retval; |
|
} |
|
|
|
|
|
module_init(u132_hcd_init); |
|
static void __exit u132_hcd_exit(void) |
|
{ |
|
mutex_lock(&u132_module_lock); |
|
u132_exiting += 1; |
|
mutex_unlock(&u132_module_lock); |
|
platform_driver_unregister(&u132_platform_driver); |
|
printk(KERN_INFO "u132-hcd driver deregistered\n"); |
|
wait_event(u132_hcd_wait, u132_instances == 0); |
|
flush_workqueue(workqueue); |
|
destroy_workqueue(workqueue); |
|
} |
|
|
|
|
|
module_exit(u132_hcd_exit); |
|
MODULE_LICENSE("GPL"); |
|
MODULE_ALIAS("platform:u132_hcd");
|
|
|