diff options
author | Dave Airlie <airlied@redhat.com> | 2009-03-28 20:22:18 -0400 |
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committer | Dave Airlie <airlied@redhat.com> | 2009-03-28 20:22:18 -0400 |
commit | 90f959bcb386da2c71613dcefc6a285e054a539e (patch) | |
tree | ee3e9dd4111d4aad12e579cb0c2c159114dff263 /drivers/usb/misc/phidgetmotorcontrol.c | |
parent | 41f13fe81dd1b08723ab9f3fc3c7f29cfa81f1a5 (diff) | |
parent | 07d43ba98621f08e252a48c96b258b4d572b0257 (diff) |
drm: merge Linux master into HEAD
Conflicts:
drivers/gpu/drm/drm_info.c
drivers/gpu/drm/drm_proc.c
drivers/gpu/drm/i915/i915_gem_debugfs.c
Diffstat (limited to 'drivers/usb/misc/phidgetmotorcontrol.c')
-rw-r--r-- | drivers/usb/misc/phidgetmotorcontrol.c | 465 |
1 files changed, 0 insertions, 465 deletions
diff --git a/drivers/usb/misc/phidgetmotorcontrol.c b/drivers/usb/misc/phidgetmotorcontrol.c deleted file mode 100644 index 38088b44349..00000000000 --- a/drivers/usb/misc/phidgetmotorcontrol.c +++ /dev/null @@ -1,465 +0,0 @@ -/* - * USB Phidget MotorControl driver - * - * Copyright (C) 2006 Sean Young <sean@mess.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/usb.h> - -#include "phidget.h" - -#define DRIVER_AUTHOR "Sean Young <sean@mess.org>" -#define DRIVER_DESC "USB PhidgetMotorControl Driver" - -#define USB_VENDOR_ID_GLAB 0x06c2 -#define USB_DEVICE_ID_MOTORCONTROL 0x0058 - -#define URB_INT_SIZE 8 - -static unsigned long device_no; - -struct motorcontrol { - struct usb_device *udev; - struct usb_interface *intf; - struct device *dev; - int dev_no; - u8 inputs[4]; - s8 desired_speed[2]; - s8 speed[2]; - s16 _current[2]; - s8 acceleration[2]; - struct urb *irq; - unsigned char *data; - dma_addr_t data_dma; - - struct delayed_work do_notify; - unsigned long input_events; - unsigned long speed_events; - unsigned long exceed_events; -}; - -static struct usb_device_id id_table[] = { - { USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_MOTORCONTROL) }, - {} -}; -MODULE_DEVICE_TABLE(usb, id_table); - -static int set_motor(struct motorcontrol *mc, int motor) -{ - u8 *buffer; - int speed, speed2, acceleration; - int retval; - - buffer = kzalloc(8, GFP_KERNEL); - if (!buffer) { - dev_err(&mc->intf->dev, "%s - out of memory\n", __func__); - return -ENOMEM; - } - - acceleration = mc->acceleration[motor] * 10; - /* -127 <= speed <= 127 */ - speed = (mc->desired_speed[motor] * 127) / 100; - /* -0x7300 <= speed2 <= 0x7300 */ - speed2 = (mc->desired_speed[motor] * 230 * 128) / 100; - - buffer[0] = motor; - buffer[1] = speed; - buffer[2] = acceleration >> 8; - buffer[3] = acceleration; - buffer[4] = speed2 >> 8; - buffer[5] = speed2; - - retval = usb_control_msg(mc->udev, - usb_sndctrlpipe(mc->udev, 0), - 0x09, 0x21, 0x0200, 0x0000, buffer, 8, 2000); - - if (retval != 8) - dev_err(&mc->intf->dev, "usb_control_msg returned %d\n", - retval); - kfree(buffer); - - return retval < 0 ? retval : 0; -} - -static void motorcontrol_irq(struct urb *urb) -{ - struct motorcontrol *mc = urb->context; - unsigned char *buffer = mc->data; - int i, level; - int retval; - int status = urb->status;; - - switch (status) { - case 0: /* success */ - break; - case -ECONNRESET: /* unlink */ - case -ENOENT: - case -ESHUTDOWN: - return; - /* -EPIPE: should clear the halt */ - default: /* error */ - goto resubmit; - } - - /* digital inputs */ - for (i=0; i<4; i++) { - level = (buffer[0] >> i) & 1; - if (mc->inputs[i] != level) { - mc->inputs[i] = level; - set_bit(i, &mc->input_events); - } - } - - /* motor speed */ - if (buffer[2] == 0) { - for (i=0; i<2; i++) { - level = ((s8)buffer[4+i]) * 100 / 127; - if (mc->speed[i] != level) { - mc->speed[i] = level; - set_bit(i, &mc->speed_events); - } - } - } else { - int index = buffer[3] & 1; - - level = ((s8)buffer[4] << 8) | buffer[5]; - level = level * 100 / 29440; - if (mc->speed[index] != level) { - mc->speed[index] = level; - set_bit(index, &mc->speed_events); - } - - level = ((s8)buffer[6] << 8) | buffer[7]; - mc->_current[index] = level * 100 / 1572; - } - - if (buffer[1] & 1) - set_bit(0, &mc->exceed_events); - - if (buffer[1] & 2) - set_bit(1, &mc->exceed_events); - - if (mc->input_events || mc->exceed_events || mc->speed_events) - schedule_delayed_work(&mc->do_notify, 0); - -resubmit: - retval = usb_submit_urb(urb, GFP_ATOMIC); - if (retval) - dev_err(&mc->intf->dev, - "can't resubmit intr, %s-%s/motorcontrol0, retval %d\n", - mc->udev->bus->bus_name, - mc->udev->devpath, retval); -} - -static void do_notify(struct work_struct *work) -{ - struct motorcontrol *mc = - container_of(work, struct motorcontrol, do_notify.work); - int i; - char sysfs_file[8]; - - for (i=0; i<4; i++) { - if (test_and_clear_bit(i, &mc->input_events)) { - sprintf(sysfs_file, "input%d", i); - sysfs_notify(&mc->dev->kobj, NULL, sysfs_file); - } - } - - for (i=0; i<2; i++) { - if (test_and_clear_bit(i, &mc->speed_events)) { - sprintf(sysfs_file, "speed%d", i); - sysfs_notify(&mc->dev->kobj, NULL, sysfs_file); - } - } - - for (i=0; i<2; i++) { - if (test_and_clear_bit(i, &mc->exceed_events)) - dev_warn(&mc->intf->dev, - "motor #%d exceeds 1.5 Amp current limit\n", i); - } -} - -#define show_set_speed(value) \ -static ssize_t set_speed##value(struct device *dev, \ - struct device_attribute *attr, \ - const char *buf, size_t count) \ -{ \ - struct motorcontrol *mc = dev_get_drvdata(dev); \ - int speed; \ - int retval; \ - \ - if (sscanf(buf, "%d", &speed) < 1) \ - return -EINVAL; \ - \ - if (speed < -100 || speed > 100) \ - return -EINVAL; \ - \ - mc->desired_speed[value] = speed; \ - \ - retval = set_motor(mc, value); \ - \ - return retval ? retval : count; \ -} \ - \ -static ssize_t show_speed##value(struct device *dev, \ - struct device_attribute *attr, \ - char *buf) \ -{ \ - struct motorcontrol *mc = dev_get_drvdata(dev); \ - \ - return sprintf(buf, "%d\n", mc->speed[value]); \ -} - -#define speed_attr(value) \ - __ATTR(speed##value, S_IWUGO | S_IRUGO, \ - show_speed##value, set_speed##value) - -show_set_speed(0); -show_set_speed(1); - -#define show_set_acceleration(value) \ -static ssize_t set_acceleration##value(struct device *dev, \ - struct device_attribute *attr, \ - const char *buf, size_t count) \ -{ \ - struct motorcontrol *mc = dev_get_drvdata(dev); \ - int acceleration; \ - int retval; \ - \ - if (sscanf(buf, "%d", &acceleration) < 1) \ - return -EINVAL; \ - \ - if (acceleration < 0 || acceleration > 100) \ - return -EINVAL; \ - \ - mc->acceleration[value] = acceleration; \ - \ - retval = set_motor(mc, value); \ - \ - return retval ? retval : count; \ -} \ - \ -static ssize_t show_acceleration##value(struct device *dev, \ - struct device_attribute *attr, \ - char *buf) \ -{ \ - struct motorcontrol *mc = dev_get_drvdata(dev); \ - \ - return sprintf(buf, "%d\n", mc->acceleration[value]); \ -} - -#define acceleration_attr(value) \ - __ATTR(acceleration##value, S_IWUGO | S_IRUGO, \ - show_acceleration##value, set_acceleration##value) - -show_set_acceleration(0); -show_set_acceleration(1); - -#define show_current(value) \ -static ssize_t show_current##value(struct device *dev, \ - struct device_attribute *attr, \ - char *buf) \ -{ \ - struct motorcontrol *mc = dev_get_drvdata(dev); \ - \ - return sprintf(buf, "%dmA\n", (int)mc->_current[value]); \ -} - -#define current_attr(value) \ - __ATTR(current##value, S_IRUGO, show_current##value, NULL) - -show_current(0); -show_current(1); - -#define show_input(value) \ -static ssize_t show_input##value(struct device *dev, \ - struct device_attribute *attr, \ - char *buf) \ -{ \ - struct motorcontrol *mc = dev_get_drvdata(dev); \ - \ - return sprintf(buf, "%d\n", (int)mc->inputs[value]); \ -} - -#define input_attr(value) \ - __ATTR(input##value, S_IRUGO, show_input##value, NULL) - -show_input(0); -show_input(1); -show_input(2); -show_input(3); - -static struct device_attribute dev_attrs[] = { - input_attr(0), - input_attr(1), - input_attr(2), - input_attr(3), - speed_attr(0), - speed_attr(1), - acceleration_attr(0), - acceleration_attr(1), - current_attr(0), - current_attr(1) -}; - -static int motorcontrol_probe(struct usb_interface *intf, const struct usb_device_id *id) -{ - struct usb_device *dev = interface_to_usbdev(intf); - struct usb_host_interface *interface; - struct usb_endpoint_descriptor *endpoint; - struct motorcontrol *mc; - int pipe, maxp, rc = -ENOMEM; - int bit, value, i; - - interface = intf->cur_altsetting; - if (interface->desc.bNumEndpoints != 1) - return -ENODEV; - - endpoint = &interface->endpoint[0].desc; - if (!usb_endpoint_dir_in(endpoint)) - return -ENODEV; - - /* - * bmAttributes - */ - pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress); - maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); - - mc = kzalloc(sizeof(*mc), GFP_KERNEL); - if (!mc) - goto out; - - mc->dev_no = -1; - mc->data = usb_buffer_alloc(dev, URB_INT_SIZE, GFP_ATOMIC, &mc->data_dma); - if (!mc->data) - goto out; - - mc->irq = usb_alloc_urb(0, GFP_KERNEL); - if (!mc->irq) - goto out; - - mc->udev = usb_get_dev(dev); - mc->intf = intf; - mc->acceleration[0] = mc->acceleration[1] = 10; - INIT_DELAYED_WORK(&mc->do_notify, do_notify); - usb_fill_int_urb(mc->irq, mc->udev, pipe, mc->data, - maxp > URB_INT_SIZE ? URB_INT_SIZE : maxp, - motorcontrol_irq, mc, endpoint->bInterval); - mc->irq->transfer_dma = mc->data_dma; - mc->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; - - usb_set_intfdata(intf, mc); - - do { - bit = find_first_zero_bit(&device_no, sizeof(device_no)); - value = test_and_set_bit(bit, &device_no); - } while(value); - mc->dev_no = bit; - - mc->dev = device_create(phidget_class, &mc->udev->dev, MKDEV(0, 0), mc, - "motorcontrol%d", mc->dev_no); - if (IS_ERR(mc->dev)) { - rc = PTR_ERR(mc->dev); - mc->dev = NULL; - goto out; - } - - if (usb_submit_urb(mc->irq, GFP_KERNEL)) { - rc = -EIO; - goto out; - } - - for (i=0; i<ARRAY_SIZE(dev_attrs); i++) { - rc = device_create_file(mc->dev, &dev_attrs[i]); - if (rc) - goto out2; - } - - dev_info(&intf->dev, "USB PhidgetMotorControl attached\n"); - - return 0; -out2: - while (i-- > 0) - device_remove_file(mc->dev, &dev_attrs[i]); -out: - if (mc) { - usb_free_urb(mc->irq); - if (mc->data) - usb_buffer_free(dev, URB_INT_SIZE, mc->data, mc->data_dma); - if (mc->dev) - device_unregister(mc->dev); - if (mc->dev_no >= 0) - clear_bit(mc->dev_no, &device_no); - - kfree(mc); - } - - return rc; -} - -static void motorcontrol_disconnect(struct usb_interface *interface) -{ - struct motorcontrol *mc; - int i; - - mc = usb_get_intfdata(interface); - usb_set_intfdata(interface, NULL); - if (!mc) - return; - - usb_kill_urb(mc->irq); - usb_free_urb(mc->irq); - usb_buffer_free(mc->udev, URB_INT_SIZE, mc->data, mc->data_dma); - - cancel_delayed_work(&mc->do_notify); - - for (i=0; i<ARRAY_SIZE(dev_attrs); i++) - device_remove_file(mc->dev, &dev_attrs[i]); - - device_unregister(mc->dev); - - usb_put_dev(mc->udev); - clear_bit(mc->dev_no, &device_no); - kfree(mc); - - dev_info(&interface->dev, "USB PhidgetMotorControl detached\n"); -} - -static struct usb_driver motorcontrol_driver = { - .name = "phidgetmotorcontrol", - .probe = motorcontrol_probe, - .disconnect = motorcontrol_disconnect, - .id_table = id_table -}; - -static int __init motorcontrol_init(void) -{ - int retval = 0; - - retval = usb_register(&motorcontrol_driver); - if (retval) - err("usb_register failed. Error number %d", retval); - - return retval; -} - -static void __exit motorcontrol_exit(void) -{ - usb_deregister(&motorcontrol_driver); -} - -module_init(motorcontrol_init); -module_exit(motorcontrol_exit); - -MODULE_AUTHOR(DRIVER_AUTHOR); -MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_LICENSE("GPL"); |