diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/usbduxfast.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/usbduxfast.c | 93 |
1 files changed, 37 insertions, 56 deletions
diff --git a/drivers/staging/comedi/drivers/usbduxfast.c b/drivers/staging/comedi/drivers/usbduxfast.c index 2a8e725b7859..7b1d21a6fc53 100644 --- a/drivers/staging/comedi/drivers/usbduxfast.c +++ b/drivers/staging/comedi/drivers/usbduxfast.c @@ -201,6 +201,8 @@ static struct usbduxfastsub_s usbduxfastsub[NUMUSBDUXFAST]; static DEFINE_SEMAPHORE(start_stop_sem); +static struct comedi_driver driver_usbduxfast; /* see below for initializer */ + /* * bulk transfers to usbduxfast */ @@ -453,14 +455,15 @@ static int usbduxfastsub_start(struct usbduxfastsub_s *udfs) /* 7f92 to zero */ local_transfer_buffer[0] = 0; /* bRequest, "Firmware" */ - ret = usb_control_msg(udfs->usbdev, usb_sndctrlpipe(udfs->usbdev, 0), USBDUXFASTSUB_FIRMWARE, - VENDOR_DIR_OUT, /* bmRequestType */ - USBDUXFASTSUB_CPUCS, /* Value */ - 0x0000, /* Index */ - /* address of the transfer buffer */ - local_transfer_buffer, - 1, /* Length */ - EZTIMEOUT); /* Timeout */ + ret = usb_control_msg(udfs->usbdev, usb_sndctrlpipe(udfs->usbdev, 0), + USBDUXFASTSUB_FIRMWARE, + VENDOR_DIR_OUT, /* bmRequestType */ + USBDUXFASTSUB_CPUCS, /* Value */ + 0x0000, /* Index */ + /* address of the transfer buffer */ + local_transfer_buffer, + 1, /* Length */ + EZTIMEOUT); /* Timeout */ if (ret < 0) { printk("comedi_: usbduxfast_: control msg failed (start)\n"); return ret; @@ -477,7 +480,8 @@ static int usbduxfastsub_stop(struct usbduxfastsub_s *udfs) /* 7f92 to one */ local_transfer_buffer[0] = 1; /* bRequest, "Firmware" */ - ret = usb_control_msg(udfs->usbdev, usb_sndctrlpipe(udfs->usbdev, 0), USBDUXFASTSUB_FIRMWARE, + ret = usb_control_msg(udfs->usbdev, usb_sndctrlpipe(udfs->usbdev, 0), + USBDUXFASTSUB_FIRMWARE, VENDOR_DIR_OUT, /* bmRequestType */ USBDUXFASTSUB_CPUCS, /* Value */ 0x0000, /* Index */ @@ -504,14 +508,15 @@ static int usbduxfastsub_upload(struct usbduxfastsub_s *udfs, startAddr, local_transfer_buffer[0]); #endif /* brequest, firmware */ - ret = usb_control_msg(udfs->usbdev, usb_sndctrlpipe(udfs->usbdev, 0), USBDUXFASTSUB_FIRMWARE, - VENDOR_DIR_OUT, /* bmRequestType */ - startAddr, /* value */ - 0x0000, /* index */ - /* our local safe buffer */ - local_transfer_buffer, - len, /* length */ - EZTIMEOUT); /* timeout */ + ret = usb_control_msg(udfs->usbdev, usb_sndctrlpipe(udfs->usbdev, 0), + USBDUXFASTSUB_FIRMWARE, + VENDOR_DIR_OUT, /* bmRequestType */ + startAddr, /* value */ + 0x0000, /* index */ + /* our local safe buffer */ + local_transfer_buffer, + len, /* length */ + EZTIMEOUT); /* timeout */ #ifdef CONFIG_COMEDI_DEBUG printk(KERN_DEBUG "comedi_: usbduxfast: result=%d\n", ret); @@ -1440,7 +1445,7 @@ static void usbduxfast_firmware_request_complete_handler(const struct firmware *fw, void *context) { struct usbduxfastsub_s *usbduxfastsub_tmp = context; - struct usb_device *usbdev = usbduxfastsub_tmp->usbdev; + struct usb_interface *uinterf = usbduxfastsub_tmp->interface; int ret; if (fw == NULL) @@ -1453,12 +1458,12 @@ static void usbduxfast_firmware_request_complete_handler(const struct firmware ret = firmwareUpload(usbduxfastsub_tmp, fw->data, fw->size); if (ret) { - dev_err(&usbdev->dev, + dev_err(&uinterf->dev, "Could not upload firmware (err=%d)\n", ret); goto out; } - comedi_usb_auto_config(usbdev, BOARDNAME); + comedi_usb_auto_config(uinterf, &driver_usbduxfast); out: release_firmware(fw); } @@ -1606,7 +1611,7 @@ static void usbduxfastsub_disconnect(struct usb_interface *intf) return; } - comedi_usb_auto_unconfig(udev); + comedi_usb_auto_unconfig(intf); down(&start_stop_sem); down(&udfs->sem); @@ -1721,43 +1726,19 @@ static int usbduxfast_attach(struct comedi_device *dev, return 0; } -static int usbduxfast_detach(struct comedi_device *dev) +static void usbduxfast_detach(struct comedi_device *dev) { - struct usbduxfastsub_s *udfs; - - if (!dev) { - printk(KERN_ERR "comedi?: usbduxfast: detach without dev " - "variable...\n"); - return -EFAULT; - } -#ifdef CONFIG_COMEDI_DEBUG - printk(KERN_DEBUG "comedi%d: usbduxfast: detach usb device\n", - dev->minor); -#endif - - udfs = dev->private; - if (!udfs) { - printk(KERN_ERR "comedi?: usbduxfast: detach without ptr to " - "usbduxfastsub[]\n"); - return -EFAULT; + struct usbduxfastsub_s *usb = dev->private; + + if (usb) { + down(&usb->sem); + down(&start_stop_sem); + dev->private = NULL; + usb->attached = 0; + usb->comedidev = NULL; + up(&start_stop_sem); + up(&usb->sem); } - - down(&udfs->sem); - down(&start_stop_sem); - /* - * Don't allow detach to free the private structure - * It's one entry of of usbduxfastsub[] - */ - dev->private = NULL; - udfs->attached = 0; - udfs->comedidev = NULL; -#ifdef CONFIG_COMEDI_DEBUG - printk(KERN_DEBUG "comedi%d: usbduxfast: detach: successfully " - "removed\n", dev->minor); -#endif - up(&start_stop_sem); - up(&udfs->sem); - return 0; } /* |