From ba0acb5ee318901646f82c134cca2e4de0c43934 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Mon, 7 May 2007 17:31:32 -0400 Subject: Input: move USB miscellaneous devices under drivers/input/misc This will allow concentrating all input devices in one place in {menu|x|q}config. Signed-off-by: Dmitry Torokhov Acked-by: Greg Kroah-Hartman --- drivers/usb/input/powermate.c | 463 ------------------------------------------ 1 file changed, 463 deletions(-) delete mode 100644 drivers/usb/input/powermate.c (limited to 'drivers/usb/input/powermate.c') diff --git a/drivers/usb/input/powermate.c b/drivers/usb/input/powermate.c deleted file mode 100644 index 448a470d28f..00000000000 --- a/drivers/usb/input/powermate.c +++ /dev/null @@ -1,463 +0,0 @@ -/* - * A driver for the Griffin Technology, Inc. "PowerMate" USB controller dial. - * - * v1.1, (c)2002 William R Sowerbutts - * - * This device is a anodised aluminium knob which connects over USB. It can measure - * clockwise and anticlockwise rotation. The dial also acts as a pushbutton with - * a spring for automatic release. The base contains a pair of LEDs which illuminate - * the translucent base. It rotates without limit and reports its relative rotation - * back to the host when polled by the USB controller. - * - * Testing with the knob I have has shown that it measures approximately 94 "clicks" - * for one full rotation. Testing with my High Speed Rotation Actuator (ok, it was - * a variable speed cordless electric drill) has shown that the device can measure - * speeds of up to 7 clicks either clockwise or anticlockwise between pollings from - * the host. If it counts more than 7 clicks before it is polled, it will wrap back - * to zero and start counting again. This was at quite high speed, however, almost - * certainly faster than the human hand could turn it. Griffin say that it loses a - * pulse or two on a direction change; the granularity is so fine that I never - * noticed this in practice. - * - * The device's microcontroller can be programmed to set the LED to either a constant - * intensity, or to a rhythmic pulsing. Several patterns and speeds are available. - * - * Griffin were very happy to provide documentation and free hardware for development. - * - * Some userspace tools are available on the web: http://sowerbutts.com/powermate/ - * - */ - -#include -#include -#include -#include -#include -#include - -#define POWERMATE_VENDOR 0x077d /* Griffin Technology, Inc. */ -#define POWERMATE_PRODUCT_NEW 0x0410 /* Griffin PowerMate */ -#define POWERMATE_PRODUCT_OLD 0x04AA /* Griffin soundKnob */ - -#define CONTOUR_VENDOR 0x05f3 /* Contour Design, Inc. */ -#define CONTOUR_JOG 0x0240 /* Jog and Shuttle */ - -/* these are the command codes we send to the device */ -#define SET_STATIC_BRIGHTNESS 0x01 -#define SET_PULSE_ASLEEP 0x02 -#define SET_PULSE_AWAKE 0x03 -#define SET_PULSE_MODE 0x04 - -/* these refer to bits in the powermate_device's requires_update field. */ -#define UPDATE_STATIC_BRIGHTNESS (1<<0) -#define UPDATE_PULSE_ASLEEP (1<<1) -#define UPDATE_PULSE_AWAKE (1<<2) -#define UPDATE_PULSE_MODE (1<<3) - -/* at least two versions of the hardware exist, with differing payload - sizes. the first three bytes always contain the "interesting" data in - the relevant format. */ -#define POWERMATE_PAYLOAD_SIZE_MAX 6 -#define POWERMATE_PAYLOAD_SIZE_MIN 3 -struct powermate_device { - signed char *data; - dma_addr_t data_dma; - struct urb *irq, *config; - struct usb_ctrlrequest *configcr; - dma_addr_t configcr_dma; - struct usb_device *udev; - struct input_dev *input; - spinlock_t lock; - int static_brightness; - int pulse_speed; - int pulse_table; - int pulse_asleep; - int pulse_awake; - int requires_update; // physical settings which are out of sync - char phys[64]; -}; - -static char pm_name_powermate[] = "Griffin PowerMate"; -static char pm_name_soundknob[] = "Griffin SoundKnob"; - -static void powermate_config_complete(struct urb *urb); - -/* Callback for data arriving from the PowerMate over the USB interrupt pipe */ -static void powermate_irq(struct urb *urb) -{ - struct powermate_device *pm = urb->context; - int retval; - - switch (urb->status) { - case 0: - /* success */ - break; - case -ECONNRESET: - case -ENOENT: - case -ESHUTDOWN: - /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); - return; - default: - dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); - goto exit; - } - - /* handle updates to device state */ - input_report_key(pm->input, BTN_0, pm->data[0] & 0x01); - input_report_rel(pm->input, REL_DIAL, pm->data[1]); - input_sync(pm->input); - -exit: - retval = usb_submit_urb (urb, GFP_ATOMIC); - if (retval) - err ("%s - usb_submit_urb failed with result %d", - __FUNCTION__, retval); -} - -/* Decide if we need to issue a control message and do so. Must be called with pm->lock taken */ -static void powermate_sync_state(struct powermate_device *pm) -{ - if (pm->requires_update == 0) - return; /* no updates are required */ - if (pm->config->status == -EINPROGRESS) - return; /* an update is already in progress; it'll issue this update when it completes */ - - if (pm->requires_update & UPDATE_PULSE_ASLEEP){ - pm->configcr->wValue = cpu_to_le16( SET_PULSE_ASLEEP ); - pm->configcr->wIndex = cpu_to_le16( pm->pulse_asleep ? 1 : 0 ); - pm->requires_update &= ~UPDATE_PULSE_ASLEEP; - }else if (pm->requires_update & UPDATE_PULSE_AWAKE){ - pm->configcr->wValue = cpu_to_le16( SET_PULSE_AWAKE ); - pm->configcr->wIndex = cpu_to_le16( pm->pulse_awake ? 1 : 0 ); - pm->requires_update &= ~UPDATE_PULSE_AWAKE; - }else if (pm->requires_update & UPDATE_PULSE_MODE){ - int op, arg; - /* the powermate takes an operation and an argument for its pulse algorithm. - the operation can be: - 0: divide the speed - 1: pulse at normal speed - 2: multiply the speed - the argument only has an effect for operations 0 and 2, and ranges between - 1 (least effect) to 255 (maximum effect). - - thus, several states are equivalent and are coalesced into one state. - - we map this onto a range from 0 to 510, with: - 0 -- 254 -- use divide (0 = slowest) - 255 -- use normal speed - 256 -- 510 -- use multiple (510 = fastest). - - Only values of 'arg' quite close to 255 are particularly useful/spectacular. - */ - if (pm->pulse_speed < 255) { - op = 0; // divide - arg = 255 - pm->pulse_speed; - } else if (pm->pulse_speed > 255) { - op = 2; // multiply - arg = pm->pulse_speed - 255; - } else { - op = 1; // normal speed - arg = 0; // can be any value - } - pm->configcr->wValue = cpu_to_le16( (pm->pulse_table << 8) | SET_PULSE_MODE ); - pm->configcr->wIndex = cpu_to_le16( (arg << 8) | op ); - pm->requires_update &= ~UPDATE_PULSE_MODE; - } else if (pm->requires_update & UPDATE_STATIC_BRIGHTNESS) { - pm->configcr->wValue = cpu_to_le16( SET_STATIC_BRIGHTNESS ); - pm->configcr->wIndex = cpu_to_le16( pm->static_brightness ); - pm->requires_update &= ~UPDATE_STATIC_BRIGHTNESS; - } else { - printk(KERN_ERR "powermate: unknown update required"); - pm->requires_update = 0; /* fudge the bug */ - return; - } - -/* printk("powermate: %04x %04x\n", pm->configcr->wValue, pm->configcr->wIndex); */ - - pm->configcr->bRequestType = 0x41; /* vendor request */ - pm->configcr->bRequest = 0x01; - pm->configcr->wLength = 0; - - usb_fill_control_urb(pm->config, pm->udev, usb_sndctrlpipe(pm->udev, 0), - (void *) pm->configcr, NULL, 0, - powermate_config_complete, pm); - pm->config->setup_dma = pm->configcr_dma; - pm->config->transfer_flags |= URB_NO_SETUP_DMA_MAP; - - if (usb_submit_urb(pm->config, GFP_ATOMIC)) - printk(KERN_ERR "powermate: usb_submit_urb(config) failed"); -} - -/* Called when our asynchronous control message completes. We may need to issue another immediately */ -static void powermate_config_complete(struct urb *urb) -{ - struct powermate_device *pm = urb->context; - unsigned long flags; - - if (urb->status) - printk(KERN_ERR "powermate: config urb returned %d\n", urb->status); - - spin_lock_irqsave(&pm->lock, flags); - powermate_sync_state(pm); - spin_unlock_irqrestore(&pm->lock, flags); -} - -/* Set the LED up as described and begin the sync with the hardware if required */ -static void powermate_pulse_led(struct powermate_device *pm, int static_brightness, int pulse_speed, - int pulse_table, int pulse_asleep, int pulse_awake) -{ - unsigned long flags; - - if (pulse_speed < 0) - pulse_speed = 0; - if (pulse_table < 0) - pulse_table = 0; - if (pulse_speed > 510) - pulse_speed = 510; - if (pulse_table > 2) - pulse_table = 2; - - pulse_asleep = !!pulse_asleep; - pulse_awake = !!pulse_awake; - - - spin_lock_irqsave(&pm->lock, flags); - - /* mark state updates which are required */ - if (static_brightness != pm->static_brightness) { - pm->static_brightness = static_brightness; - pm->requires_update |= UPDATE_STATIC_BRIGHTNESS; - } - if (pulse_asleep != pm->pulse_asleep) { - pm->pulse_asleep = pulse_asleep; - pm->requires_update |= (UPDATE_PULSE_ASLEEP | UPDATE_STATIC_BRIGHTNESS); - } - if (pulse_awake != pm->pulse_awake) { - pm->pulse_awake = pulse_awake; - pm->requires_update |= (UPDATE_PULSE_AWAKE | UPDATE_STATIC_BRIGHTNESS); - } - if (pulse_speed != pm->pulse_speed || pulse_table != pm->pulse_table) { - pm->pulse_speed = pulse_speed; - pm->pulse_table = pulse_table; - pm->requires_update |= UPDATE_PULSE_MODE; - } - - powermate_sync_state(pm); - - spin_unlock_irqrestore(&pm->lock, flags); -} - -/* Callback from the Input layer when an event arrives from userspace to configure the LED */ -static int powermate_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int _value) -{ - unsigned int command = (unsigned int)_value; - struct powermate_device *pm = input_get_drvdata(dev); - - if (type == EV_MSC && code == MSC_PULSELED){ - /* - bits 0- 7: 8 bits: LED brightness - bits 8-16: 9 bits: pulsing speed modifier (0 ... 510); 0-254 = slower, 255 = standard, 256-510 = faster. - bits 17-18: 2 bits: pulse table (0, 1, 2 valid) - bit 19: 1 bit : pulse whilst asleep? - bit 20: 1 bit : pulse constantly? - */ - int static_brightness = command & 0xFF; // bits 0-7 - int pulse_speed = (command >> 8) & 0x1FF; // bits 8-16 - int pulse_table = (command >> 17) & 0x3; // bits 17-18 - int pulse_asleep = (command >> 19) & 0x1; // bit 19 - int pulse_awake = (command >> 20) & 0x1; // bit 20 - - powermate_pulse_led(pm, static_brightness, pulse_speed, pulse_table, pulse_asleep, pulse_awake); - } - - return 0; -} - -static int powermate_alloc_buffers(struct usb_device *udev, struct powermate_device *pm) -{ - pm->data = usb_buffer_alloc(udev, POWERMATE_PAYLOAD_SIZE_MAX, - GFP_ATOMIC, &pm->data_dma); - if (!pm->data) - return -1; - - pm->configcr = usb_buffer_alloc(udev, sizeof(*(pm->configcr)), - GFP_ATOMIC, &pm->configcr_dma); - if (!pm->configcr) - return -1; - - return 0; -} - -static void powermate_free_buffers(struct usb_device *udev, struct powermate_device *pm) -{ - usb_buffer_free(udev, POWERMATE_PAYLOAD_SIZE_MAX, - pm->data, pm->data_dma); - usb_buffer_free(udev, sizeof(*(pm->configcr)), - pm->configcr, pm->configcr_dma); -} - -/* Called whenever a USB device matching one in our supported devices table is connected */ -static int powermate_probe(struct usb_interface *intf, const struct usb_device_id *id) -{ - struct usb_device *udev = interface_to_usbdev (intf); - struct usb_host_interface *interface; - struct usb_endpoint_descriptor *endpoint; - struct powermate_device *pm; - struct input_dev *input_dev; - int pipe, maxp; - int error = -ENOMEM; - - interface = intf->cur_altsetting; - endpoint = &interface->endpoint[0].desc; - if (!usb_endpoint_is_int_in(endpoint)) - return -EIO; - - usb_control_msg(udev, usb_sndctrlpipe(udev, 0), - 0x0a, USB_TYPE_CLASS | USB_RECIP_INTERFACE, - 0, interface->desc.bInterfaceNumber, NULL, 0, - USB_CTRL_SET_TIMEOUT); - - pm = kzalloc(sizeof(struct powermate_device), GFP_KERNEL); - input_dev = input_allocate_device(); - if (!pm || !input_dev) - goto fail1; - - if (powermate_alloc_buffers(udev, pm)) - goto fail2; - - pm->irq = usb_alloc_urb(0, GFP_KERNEL); - if (!pm->irq) - goto fail2; - - pm->config = usb_alloc_urb(0, GFP_KERNEL); - if (!pm->config) - goto fail3; - - pm->udev = udev; - pm->input = input_dev; - - usb_make_path(udev, pm->phys, sizeof(pm->phys)); - strlcpy(pm->phys, "/input0", sizeof(pm->phys)); - - spin_lock_init(&pm->lock); - - switch (le16_to_cpu(udev->descriptor.idProduct)) { - case POWERMATE_PRODUCT_NEW: - input_dev->name = pm_name_powermate; - break; - case POWERMATE_PRODUCT_OLD: - input_dev->name = pm_name_soundknob; - break; - default: - input_dev->name = pm_name_soundknob; - printk(KERN_WARNING "powermate: unknown product id %04x\n", - le16_to_cpu(udev->descriptor.idProduct)); - } - - input_dev->phys = pm->phys; - usb_to_input_id(udev, &input_dev->id); - input_dev->dev.parent = &intf->dev; - - input_set_drvdata(input_dev, pm); - - input_dev->event = powermate_input_event; - - input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL) | BIT(EV_MSC); - input_dev->keybit[LONG(BTN_0)] = BIT(BTN_0); - input_dev->relbit[LONG(REL_DIAL)] = BIT(REL_DIAL); - input_dev->mscbit[LONG(MSC_PULSELED)] = BIT(MSC_PULSELED); - - /* get a handle to the interrupt data pipe */ - pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress); - maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe)); - - if (maxp < POWERMATE_PAYLOAD_SIZE_MIN || maxp > POWERMATE_PAYLOAD_SIZE_MAX) { - printk(KERN_WARNING "powermate: Expected payload of %d--%d bytes, found %d bytes!\n", - POWERMATE_PAYLOAD_SIZE_MIN, POWERMATE_PAYLOAD_SIZE_MAX, maxp); - maxp = POWERMATE_PAYLOAD_SIZE_MAX; - } - - usb_fill_int_urb(pm->irq, udev, pipe, pm->data, - maxp, powermate_irq, - pm, endpoint->bInterval); - pm->irq->transfer_dma = pm->data_dma; - pm->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; - - /* register our interrupt URB with the USB system */ - if (usb_submit_urb(pm->irq, GFP_KERNEL)) { - error = -EIO; - goto fail4; - } - - error = input_register_device(pm->input); - if (error) - goto fail5; - - - /* force an update of everything */ - pm->requires_update = UPDATE_PULSE_ASLEEP | UPDATE_PULSE_AWAKE | UPDATE_PULSE_MODE | UPDATE_STATIC_BRIGHTNESS; - powermate_pulse_led(pm, 0x80, 255, 0, 1, 0); // set default pulse parameters - - usb_set_intfdata(intf, pm); - return 0; - - fail5: usb_kill_urb(pm->irq); - fail4: usb_free_urb(pm->config); - fail3: usb_free_urb(pm->irq); - fail2: powermate_free_buffers(udev, pm); - fail1: input_free_device(input_dev); - kfree(pm); - return error; -} - -/* Called when a USB device we've accepted ownership of is removed */ -static void powermate_disconnect(struct usb_interface *intf) -{ - struct powermate_device *pm = usb_get_intfdata (intf); - - usb_set_intfdata(intf, NULL); - if (pm) { - pm->requires_update = 0; - usb_kill_urb(pm->irq); - input_unregister_device(pm->input); - usb_free_urb(pm->irq); - usb_free_urb(pm->config); - powermate_free_buffers(interface_to_usbdev(intf), pm); - - kfree(pm); - } -} - -static struct usb_device_id powermate_devices [] = { - { USB_DEVICE(POWERMATE_VENDOR, POWERMATE_PRODUCT_NEW) }, - { USB_DEVICE(POWERMATE_VENDOR, POWERMATE_PRODUCT_OLD) }, - { USB_DEVICE(CONTOUR_VENDOR, CONTOUR_JOG) }, - { } /* Terminating entry */ -}; - -MODULE_DEVICE_TABLE (usb, powermate_devices); - -static struct usb_driver powermate_driver = { - .name = "powermate", - .probe = powermate_probe, - .disconnect = powermate_disconnect, - .id_table = powermate_devices, -}; - -static int __init powermate_init(void) -{ - return usb_register(&powermate_driver); -} - -static void __exit powermate_cleanup(void) -{ - usb_deregister(&powermate_driver); -} - -module_init(powermate_init); -module_exit(powermate_cleanup); - -MODULE_AUTHOR( "William R Sowerbutts" ); -MODULE_DESCRIPTION( "Griffin Technology, Inc PowerMate driver" ); -MODULE_LICENSE("GPL"); -- cgit v1.2.3