/* * USB PhidgetInterfaceKit driver 1.0 * * Copyright (C) 2004, 2006 Sean Young <sean@mess.org> * Copyright (C) 2005 Daniel Saakes <daniel@saakes.net> * Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com> * * 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. * * This is a driver for the USB PhidgetInterfaceKit. */ #include <linux/kernel.h>#include <linux/errno.h>#include <linux/init.h>#include <linux/slab.h>#include <linux/module.h>#include <linux/usb.h> #include "phidget.h" #define DRIVER_AUTHOR "Sean Young <sean@mess.org>"#define DRIVER_DESC "USB PhidgetInterfaceKit Driver" #define USB_VENDOR_ID_GLAB 0x06c2#define USB_DEVICE_ID_INTERFACEKIT004 0x0040#define USB_DEVICE_ID_INTERFACEKIT01616 0x0044#define USB_DEVICE_ID_INTERFACEKIT888 0x0045#define USB_DEVICE_ID_INTERFACEKIT047 0x0051#define USB_DEVICE_ID_INTERFACEKIT088 0x0053 #define USB_VENDOR_ID_WISEGROUP 0x0925#define USB_DEVICE_ID_INTERFACEKIT884 0x8201 #define MAX_INTERFACES 16 #define URB_INT_SIZE 8 struct driver_interfacekit { int sensors; int inputs; int outputs; int has_lcd; int amnesiac;}; #define ifkit(_sensors, _inputs, _outputs, _lcd, _amnesiac) \{ \ .sensors = _sensors, \ .inputs = _inputs, \ .outputs = _outputs, \ .has_lcd = _lcd, \ .amnesiac = _amnesiac \}; static const struct driver_interfacekit ph_004 = ifkit(0, 0, 4, 0, 0);static const struct driver_interfacekit ph_888n = ifkit(8, 8, 8, 0, 1);static const struct driver_interfacekit ph_888o = ifkit(8, 8, 8, 0, 0);static const struct driver_interfacekit ph_047 = ifkit(0, 4, 7, 1, 0);static const struct driver_interfacekit ph_884 = ifkit(8, 8, 4, 0, 0);static const struct driver_interfacekit ph_088 = ifkit(0, 8, 8, 1, 0);static const struct driver_interfacekit ph_01616 = ifkit(0, 16, 16, 0, 0); static unsigned long device_no; struct interfacekit { struct usb_device *udev; struct usb_interface *intf; struct driver_interfacekit *ifkit; struct device *dev; unsigned long outputs; int dev_no; u8 inputs[MAX_INTERFACES]; u16 sensors[MAX_INTERFACES]; u8 lcd_files_on; struct urb *irq; unsigned char *data; dma_addr_t data_dma; struct delayed_work do_notify; struct delayed_work do_resubmit; unsigned long input_events; unsigned long sensor_events;}; static struct usb_device_id id_table[] = { {USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT004), .driver_info = (kernel_ulong_t)&ph_004}, {USB_DEVICE_VER(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT888, 0, 0x814), .driver_info = (kernel_ulong_t)&ph_888o}, {USB_DEVICE_VER(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT888, 0x0815, 0xffff), .driver_info = (kernel_ulong_t)&ph_888n}, {USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT047), .driver_info = (kernel_ulong_t)&ph_047}, {USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT088), .driver_info = (kernel_ulong_t)&ph_088}, {USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT01616), .driver_info = (kernel_ulong_t)&ph_01616}, {USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_INTERFACEKIT884), .driver_info = (kernel_ulong_t)&ph_884}, {}};MODULE_DEVICE_TABLE(usb, id_table); static int set_outputs(struct interfacekit *kit){ u8 *buffer; int retval; buffer = kzalloc(4, GFP_KERNEL); if (!buffer) { dev_err(&kit->udev->dev, "%s - out of memory\n", __FUNCTION__); return -ENOMEM; } buffer[0] = (u8)kit->outputs; buffer[1] = (u8)(kit->outputs >> 8); dev_dbg(&kit->udev->dev, "sending data: 0x%04x\n", (u16)kit->outputs); retval = usb_control_msg(kit->udev, usb_sndctrlpipe(kit->udev, 0), 0x09, 0x21, 0x0200, 0x0000, buffer, 4, 2000); if (retval != 4) dev_err(&kit->udev->dev, "usb_control_msg returned %d\n", retval); kfree(buffer); if (kit->ifkit->amnesiac) schedule_delayed_work(&kit->do_resubmit, HZ / 2); return retval < 0 ? retval : 0;} static int change_string(struct interfacekit *kit, const char *display, unsigned char row){ unsigned char *buffer; unsigned char *form_buffer; int retval = -ENOMEM; int i,j, len, buf_ptr; buffer = kmalloc(8, GFP_KERNEL); form_buffer = kmalloc(30, GFP_KERNEL); if ((!buffer) || (!form_buffer)) { dev_err(&kit->udev->dev, "%s - out of memory\n", __FUNCTION__); goto exit; } len = strlen(display); if (len > 20) len = 20; dev_dbg(&kit->udev->dev, "Setting LCD line %d to %s\n", row, display); form_buffer[0] = row * 0x40 + 0x80; form_buffer[1] = 0x02; buf_ptr = 2; for (i = 0; i<len; i++) form_buffer[buf_ptr++] = display[i]; for (i = 0; i < (20 - len); i++) form_buffer[buf_ptr++] = 0x20; form_buffer[buf_ptr++] = 0x01; form_buffer[buf_ptr++] = row * 0x40 + 0x80 + strlen(display); for (i = 0; i < buf_ptr; i += 7) { if ((buf_ptr - i) > 7) len = 7; else len = (buf_ptr - i); for (j = 0; j < len; j++) buffer[j] = form_buffer[i + j]; buffer[7] = len; retval = usb_control_msg(kit->udev, usb_sndctrlpipe(kit->udev, 0), 0x09, 0x21, 0x0200, 0x0000, buffer, 8, 2000); if (retval < 0) goto exit; } retval = 0;exit: kfree(buffer); kfree(form_buffer); return retval;} #define set_lcd_line(number) \static ssize_t lcd_line_##number(struct device *dev, \ struct device_attribute *attr, \ const char *buf, size_t count) \{ \ struct interfacekit *kit = dev_get_drvdata(dev); \ change_string(kit, buf, number - 1); \ return count; \} #define lcd_line_attr(number) \ __ATTR(lcd_line_##number, S_IWUGO, NULL, lcd_line_##number) set_lcd_line(1);set_lcd_line(2); static ssize_t set_backlight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count){ struct interfacekit *kit = dev_get_drvdata(dev); int enabled; unsigned char *buffer; int retval = -ENOMEM; buffer = kzalloc(8, GFP_KERNEL); if (!buffer) { dev_err(&kit->udev->dev, "%s - out of memory\n", __FUNCTION__); goto exit; } if (sscanf(buf, "%d", &enabled) < 1) { retval = -EINVAL; goto exit; } if (enabled) buffer[0] = 0x01; buffer[7] = 0x11; dev_dbg(&kit->udev->dev, "Setting backlight to %s\n", enabled ? "on" : "off"); retval = usb_control_msg(kit->udev, usb_sndctrlpipe(kit->udev, 0), 0x09, 0x21, 0x0200, 0x0000, buffer, 8, 2000); if (retval < 0) goto exit; retval = count;exit: kfree(buffer); return retval;} static struct device_attribute dev_lcd_line_attrs[] = { lcd_line_attr(1), lcd_line_attr(2), __ATTR(backlight, S_IWUGO, NULL, set_backlight)}; static void remove_lcd_files(struct interfacekit *kit){ int i; if (kit->lcd_files_on) { dev_dbg(&kit->udev->dev, "Removing lcd files\n"); for (i=0; i<ARRAY_SIZE(dev_lcd_line_attrs); i++) device_remove_file(kit->dev, &dev_lcd_line_attrs[i]); }} static ssize_t enable_lcd_files(struct device *dev, struct device_attribute *attr, const char *buf, size_t count){ struct interfacekit *kit = dev_get_drvdata(dev); int enable; int i, rc; if (kit->ifkit->has_lcd == 0) return -ENODEV; if (sscanf(buf, "%d", &enable) < 1) return -EINVAL; if (enable) { if (!kit->lcd_files_on) { dev_dbg(&kit->udev->dev, "Adding lcd files\n"); for (i=0; i<ARRAY_SIZE(dev_lcd_line_attrs); i++) { rc = device_create_file(kit->dev, &dev_lcd_line_attrs[i]); if (rc) goto out; } kit->lcd_files_on = 1; } } else { if (kit->lcd_files_on) { remove_lcd_files(kit); kit->lcd_files_on = 0; } } return count;out: while (i-- > 0) device_remove_file(kit->dev, &dev_lcd_line_attrs[i]); return rc;} static DEVICE_ATTR(lcd, S_IWUGO, NULL, enable_lcd_files); static void interfacekit_irq(struct urb *urb){ struct interfacekit *kit = urb->context; unsigned char *buffer = kit->data; int i, level, sensor; int status; switch (urb->status) { case 0: /* success */ break; case -ECONNRESET: /* unlink */ case -ENOENT: case -ESHUTDOWN: return; /* -EPIPE: should clear the halt */ default: /* error */ goto resubmit; } /* digital inputs */ if (kit->ifkit->inputs == 16) { for (i=0; i < 8; i++) { level = (buffer[0] >> i) & 1; if (kit->inputs[i] != level) { kit->inputs[i] = level; set_bit(i, &kit->input_events); } level = (buffer[1] >> i) & 1; if (kit->inputs[8 + i] != level) { kit->inputs[8 + i] = level; set_bit(8 + i, &kit->input_events); } } } else if (kit->ifkit->inputs == 8) { for (i=0; i < 8; i++) { level = (buffer[1] >> i) & 1; if (kit->inputs[i] != level) { kit->inputs[i] = level; set_bit(i, &kit->input_events); } } } /* analog inputs */ if (kit->ifkit->sensors) { sensor = (buffer[0] & 1) ? 4 : 0; level = buffer[2] + (buffer[3] & 0x0f) * 256; if (level != kit->sensors[sensor]) { kit->sensors[sensor] = level; set_bit(sensor, &kit->sensor_events); } sensor++; level = buffer[4] + (buffer[3] & 0xf0) * 16; if (level != kit->sensors[sensor]) { kit->sensors[sensor] = level; set_bit(sensor, &kit->sensor_events); } sensor++; level = buffer[5] + (buffer[6] & 0x0f) * 256; if (level != kit->sensors[sensor]) { kit->sensors[sensor] = level; set_bit(sensor, &kit->sensor_events); } sensor++; level = buffer[7] + (buffer[6] & 0xf0) * 16; if (level != kit->sensors[sensor]) { kit->sensors[sensor] = level; set_bit(sensor, &kit->sensor_events); } } if (kit->input_events || kit->sensor_events) schedule_delayed_work(&kit->do_notify, 0); resubmit: status = usb_submit_urb(urb, GFP_ATOMIC); if (status) err("can't resubmit intr, %s-%s/interfacekit0, status %d", kit->udev->bus->bus_name, kit->udev->devpath, status);} static void do_notify(struct work_struct *work){ struct interfacekit *kit = container_of(work, struct interfacekit, do_notify.work); int i; char sysfs_file[8]; for (i=0; i<kit->ifkit->inputs; i++) { if (test_and_clear_bit(i, &kit->input_events)) { sprintf(sysfs_file, "input%d", i + 1); sysfs_notify(&kit->dev->kobj, NULL, sysfs_file); } } for (i=0; i<kit->ifkit->sensors; i++) { if (test_and_clear_bit(i, &kit->sensor_events)) { sprintf(sysfs_file, "sensor%d", i + 1); sysfs_notify(&kit->dev->kobj, NULL, sysfs_file); } }} static void do_resubmit(struct work_struct *work){ struct interfacekit *kit = container_of(work, struct interfacekit, do_resubmit.work); set_outputs(kit);} #define show_set_output(value) \static ssize_t set_output##value(struct device *dev, \ struct device_attribute *attr, \ const char *buf, size_t count) \{ \ struct interfacekit *kit = dev_get_drvdata(dev); \ int enable; \ int retval; \ \ if (sscanf(buf, "%d", &enable) < 1) \ return -EINVAL; \ \ if (enable) \ set_bit(value - 1, &kit->outputs); \ else \ clear_bit(value - 1, &kit->outputs); \ \ retval = set_outputs(kit); \ \ return retval ? retval : count; \} \ \static ssize_t show_output##value(struct device *dev, \ struct device_attribute *attr, \ char *buf) \{ \ struct interfacekit *kit = dev_get_drvdata(dev); \ \ return sprintf(buf, "%d\n", !!test_bit(value - 1, &kit->outputs));\} #define output_attr(value) \ __ATTR(output##value, S_IWUGO | S_IRUGO, \ show_output##value, set_output##value) show_set_output(1);show_set_output(2);show_set_output(3);show_set_output(4);show_set_output(5);show_set_output(6);show_set_output(7);show_set_output(8);show_set_output(9);show_set_output(10);show_set_output(11);show_set_output(12);show_set_output(13);show_set_output(14);show_set_output(15);show_set_output(16); static struct device_attribute dev_output_attrs[] = { output_attr(1), output_attr(2), output_attr(3), output_attr(4), output_attr(5), output_attr(6), output_attr(7), output_attr(8), output_attr(9), output_attr(10), output_attr(11), output_attr(12), output_attr(13), output_attr(14), output_attr(15), output_attr(16)}; #define show_input(value) \static ssize_t show_input##value(struct device *dev, \ struct device_attribute *attr, char *buf) \{ \ struct interfacekit *kit = dev_get_drvdata(dev); \ \ return sprintf(buf, "%d\n", (int)kit->inputs[value - 1]); \} #define input_attr(value) \ __ATTR(input##value, S_IRUGO, show_input##value, NULL) show_input(1);show_input(2);show_input(3);show_input(4);show_input(5);show_input(6);show_input(7);show_input(8);show_input(9);show_input(10);show_input(11);show_input(12);show_input(13);show_input(14);Lines 1–500 of 740. 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/* * USB PhidgetInterfaceKit driver 1.0 * * Copyright (C) 2004, 2006 Sean Young <sean@mess.org> * Copyright (C) 2005 Daniel Saakes <daniel@saakes.net> * Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com> * * 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. * * This is a driver for the USB PhidgetInterfaceKit. */ #include <linux/kernel.h> #include <linux/errno.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/usb.h> #include "phidget.h" #define DRIVER_AUTHOR "Sean Young <sean@mess.org>" #define DRIVER_DESC "USB PhidgetInterfaceKit Driver" #define USB_VENDOR_ID_GLAB 0x06c2 #define USB_DEVICE_ID_INTERFACEKIT004 0x0040 #define USB_DEVICE_ID_INTERFACEKIT01616 0x0044 #define USB_DEVICE_ID_INTERFACEKIT888 0x0045 #define USB_DEVICE_ID_INTERFACEKIT047 0x0051 #define USB_DEVICE_ID_INTERFACEKIT088 0x0053 #define USB_VENDOR_ID_WISEGROUP 0x0925 #define USB_DEVICE_ID_INTERFACEKIT884 0x8201 #define MAX_INTERFACES 16 #define URB_INT_SIZE 8 struct driver_interfacekit { int sensors; int inputs; int outputs; int has_lcd; int amnesiac; }; #define ifkit(_sensors, _inputs, _outputs, _lcd, _amnesiac) \ { \ .sensors = _sensors, \ .inputs = _inputs, \ .outputs = _outputs, \ .has_lcd = _lcd, \ .amnesiac = _amnesiac \ }; static const struct driver_interfacekit ph_004 = ifkit(0, 0, 4, 0, 0); static const struct driver_interfacekit ph_888n = ifkit(8, 8, 8, 0, 1); static const struct driver_interfacekit ph_888o = ifkit(8, 8, 8, 0, 0); static const struct driver_interfacekit ph_047 = ifkit(0, 4, 7, 1, 0); static const struct driver_interfacekit ph_884 = ifkit(8, 8, 4, 0, 0); static const struct driver_interfacekit ph_088 = ifkit(0, 8, 8, 1, 0); static const struct driver_interfacekit ph_01616 = ifkit(0, 16, 16, 0, 0); static unsigned long device_no; struct interfacekit { struct usb_device *udev; struct usb_interface *intf; struct driver_interfacekit *ifkit; struct device *dev; unsigned long outputs; int dev_no; u8 inputs[MAX_INTERFACES]; u16 sensors[MAX_INTERFACES]; u8 lcd_files_on; struct urb *irq; unsigned char *data; dma_addr_t data_dma; struct delayed_work do_notify; struct delayed_work do_resubmit; unsigned long input_events; unsigned long sensor_events; }; static struct usb_device_id id_table[] = { {USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT004), .driver_info = (kernel_ulong_t)&ph_004}, {USB_DEVICE_VER(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT888, 0, 0x814), .driver_info = (kernel_ulong_t)&ph_888o}, {USB_DEVICE_VER(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT888, 0x0815, 0xffff), .driver_info = (kernel_ulong_t)&ph_888n}, {USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT047), .driver_info = (kernel_ulong_t)&ph_047}, {USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT088), .driver_info = (kernel_ulong_t)&ph_088}, {USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_INTERFACEKIT01616), .driver_info = (kernel_ulong_t)&ph_01616}, {USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_INTERFACEKIT884), .driver_info = (kernel_ulong_t)&ph_884}, {} }; MODULE_DEVICE_TABLE(usb, id_table); static int set_outputs(struct interfacekit *kit) { u8 *buffer; int retval; buffer = kzalloc(4, GFP_KERNEL); if (!buffer) { dev_err(&kit->udev->dev, "%s - out of memory\n", __FUNCTION__); return -ENOMEM; } buffer[0] = (u8)kit->outputs; buffer[1] = (u8)(kit->outputs >> 8); dev_dbg(&kit->udev->dev, "sending data: 0x%04x\n", (u16)kit->outputs); retval = usb_control_msg(kit->udev, usb_sndctrlpipe(kit->udev, 0), 0x09, 0x21, 0x0200, 0x0000, buffer, 4, 2000); if (retval != 4) dev_err(&kit->udev->dev, "usb_control_msg returned %d\n", retval); kfree(buffer); if (kit->ifkit->amnesiac) schedule_delayed_work(&kit->do_resubmit, HZ / 2); return retval < 0 ? retval : 0; } static int change_string(struct interfacekit *kit, const char *display, unsigned char row) { unsigned char *buffer; unsigned char *form_buffer; int retval = -ENOMEM; int i,j, len, buf_ptr; buffer = kmalloc(8, GFP_KERNEL); form_buffer = kmalloc(30, GFP_KERNEL); if ((!buffer) || (!form_buffer)) { dev_err(&kit->udev->dev, "%s - out of memory\n", __FUNCTION__); goto exit; } len = strlen(display); if (len > 20) len = 20; dev_dbg(&kit->udev->dev, "Setting LCD line %d to %s\n", row, display); form_buffer[0] = row * 0x40 + 0x80; form_buffer[1] = 0x02; buf_ptr = 2; for (i = 0; i<len; i++) form_buffer[buf_ptr++] = display[i]; for (i = 0; i < (20 - len); i++) form_buffer[buf_ptr++] = 0x20; form_buffer[buf_ptr++] = 0x01; form_buffer[buf_ptr++] = row * 0x40 + 0x80 + strlen(display); for (i = 0; i < buf_ptr; i += 7) { if ((buf_ptr - i) > 7) len = 7; else len = (buf_ptr - i); for (j = 0; j < len; j++) buffer[j] = form_buffer[i + j]; buffer[7] = len; retval = usb_control_msg(kit->udev, usb_sndctrlpipe(kit->udev, 0), 0x09, 0x21, 0x0200, 0x0000, buffer, 8, 2000); if (retval < 0) goto exit; } retval = 0; exit: kfree(buffer); kfree(form_buffer); return retval; } #define set_lcd_line(number) \ static ssize_t lcd_line_##number(struct device *dev, \ struct device_attribute *attr, \ const char *buf, size_t count) \ { \ struct interfacekit *kit = dev_get_drvdata(dev); \ change_string(kit, buf, number - 1); \ return count; \ } #define lcd_line_attr(number) \ __ATTR(lcd_line_##number, S_IWUGO, NULL, lcd_line_##number) set_lcd_line(1); set_lcd_line(2); static ssize_t set_backlight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct interfacekit *kit = dev_get_drvdata(dev); int enabled; unsigned char *buffer; int retval = -ENOMEM; buffer = kzalloc(8, GFP_KERNEL); if (!buffer) { dev_err(&kit->udev->dev, "%s - out of memory\n", __FUNCTION__); goto exit; } if (sscanf(buf, "%d", &enabled) < 1) { retval = -EINVAL; goto exit; } if (enabled) buffer[0] = 0x01; buffer[7] = 0x11; dev_dbg(&kit->udev->dev, "Setting backlight to %s\n", enabled ? "on" : "off"); retval = usb_control_msg(kit->udev, usb_sndctrlpipe(kit->udev, 0), 0x09, 0x21, 0x0200, 0x0000, buffer, 8, 2000); if (retval < 0) goto exit; retval = count; exit: kfree(buffer); return retval; } static struct device_attribute dev_lcd_line_attrs[] = { lcd_line_attr(1), lcd_line_attr(2), __ATTR(backlight, S_IWUGO, NULL, set_backlight) }; static void remove_lcd_files(struct interfacekit *kit) { int i; if (kit->lcd_files_on) { dev_dbg(&kit->udev->dev, "Removing lcd files\n"); for (i=0; i<ARRAY_SIZE(dev_lcd_line_attrs); i++) device_remove_file(kit->dev, &dev_lcd_line_attrs[i]); } } static ssize_t enable_lcd_files(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct interfacekit *kit = dev_get_drvdata(dev); int enable; int i, rc; if (kit->ifkit->has_lcd == 0) return -ENODEV; if (sscanf(buf, "%d", &enable) < 1) return -EINVAL; if (enable) { if (!kit->lcd_files_on) { dev_dbg(&kit->udev->dev, "Adding lcd files\n"); for (i=0; i<ARRAY_SIZE(dev_lcd_line_attrs); i++) { rc = device_create_file(kit->dev, &dev_lcd_line_attrs[i]); if (rc) goto out; } kit->lcd_files_on = 1; } } else { if (kit->lcd_files_on) { remove_lcd_files(kit); kit->lcd_files_on = 0; } } return count; out: while (i-- > 0) device_remove_file(kit->dev, &dev_lcd_line_attrs[i]); return rc; } static DEVICE_ATTR(lcd, S_IWUGO, NULL, enable_lcd_files); static void interfacekit_irq(struct urb *urb) { struct interfacekit *kit = urb->context; unsigned char *buffer = kit->data; int i, level, sensor; int status; switch (urb->status) { case 0: /* success */ break; case -ECONNRESET: /* unlink */ case -ENOENT: case -ESHUTDOWN: return; /* -EPIPE: should clear the halt */ default: /* error */ goto resubmit; } /* digital inputs */ if (kit->ifkit->inputs == 16) { for (i=0; i < 8; i++) { level = (buffer[0] >> i) & 1; if (kit->inputs[i] != level) { kit->inputs[i] = level; set_bit(i, &kit->input_events); } level = (buffer[1] >> i) & 1; if (kit->inputs[8 + i] != level) { kit->inputs[8 + i] = level; set_bit(8 + i, &kit->input_events); } } } else if (kit->ifkit->inputs == 8) { for (i=0; i < 8; i++) { level = (buffer[1] >> i) & 1; if (kit->inputs[i] != level) { kit->inputs[i] = level; set_bit(i, &kit->input_events); } } } /* analog inputs */ if (kit->ifkit->sensors) { sensor = (buffer[0] & 1) ? 4 : 0; level = buffer[2] + (buffer[3] & 0x0f) * 256; if (level != kit->sensors[sensor]) { kit->sensors[sensor] = level; set_bit(sensor, &kit->sensor_events); } sensor++; level = buffer[4] + (buffer[3] & 0xf0) * 16; if (level != kit->sensors[sensor]) { kit->sensors[sensor] = level; set_bit(sensor, &kit->sensor_events); } sensor++; level = buffer[5] + (buffer[6] & 0x0f) * 256; if (level != kit->sensors[sensor]) { kit->sensors[sensor] = level; set_bit(sensor, &kit->sensor_events); } sensor++; level = buffer[7] + (buffer[6] & 0xf0) * 16; if (level != kit->sensors[sensor]) { kit->sensors[sensor] = level; set_bit(sensor, &kit->sensor_events); } } if (kit->input_events || kit->sensor_events) schedule_delayed_work(&kit->do_notify, 0); resubmit: status = usb_submit_urb(urb, GFP_ATOMIC); if (status) err("can't resubmit intr, %s-%s/interfacekit0, status %d", kit->udev->bus->bus_name, kit->udev->devpath, status); } static void do_notify(struct work_struct *work) { struct interfacekit *kit = container_of(work, struct interfacekit, do_notify.work); int i; char sysfs_file[8]; for (i=0; i<kit->ifkit->inputs; i++) { if (test_and_clear_bit(i, &kit->input_events)) { sprintf(sysfs_file, "input%d", i + 1); sysfs_notify(&kit->dev->kobj, NULL, sysfs_file); } } for (i=0; i<kit->ifkit->sensors; i++) { if (test_and_clear_bit(i, &kit->sensor_events)) { sprintf(sysfs_file, "sensor%d", i + 1); sysfs_notify(&kit->dev->kobj, NULL, sysfs_file); } } } static void do_resubmit(struct work_struct *work) { struct interfacekit *kit = container_of(work, struct interfacekit, do_resubmit.work); set_outputs(kit); } #define show_set_output(value) \ static ssize_t set_output##value(struct device *dev, \ struct device_attribute *attr, \ const char *buf, size_t count) \ { \ struct interfacekit *kit = dev_get_drvdata(dev); \ int enable; \ int retval; \ \ if (sscanf(buf, "%d", &enable) < 1) \ return -EINVAL; \ \ if (enable) \ set_bit(value - 1, &kit->outputs); \ else \ clear_bit(value - 1, &kit->outputs); \ \ retval = set_outputs(kit); \ \ return retval ? retval : count; \ } \ \ static ssize_t show_output##value(struct device *dev, \ struct device_attribute *attr, \ char *buf) \ { \ struct interfacekit *kit = dev_get_drvdata(dev); \ \ return sprintf(buf, "%d\n", !!test_bit(value - 1, &kit->outputs));\ } #define output_attr(value) \ __ATTR(output##value, S_IWUGO | S_IRUGO, \ show_output##value, set_output##value) show_set_output(1); show_set_output(2); show_set_output(3); show_set_output(4); show_set_output(5); show_set_output(6); show_set_output(7); show_set_output(8); show_set_output(9); show_set_output(10); show_set_output(11); show_set_output(12); show_set_output(13); show_set_output(14); show_set_output(15); show_set_output(16); static struct device_attribute dev_output_attrs[] = { output_attr(1), output_attr(2), output_attr(3), output_attr(4), output_attr(5), output_attr(6), output_attr(7), output_attr(8), output_attr(9), output_attr(10), output_attr(11), output_attr(12), output_attr(13), output_attr(14), output_attr(15), output_attr(16) }; #define show_input(value) \ static ssize_t show_input##value(struct device *dev, \ struct device_attribute *attr, char *buf) \ { \ struct interfacekit *kit = dev_get_drvdata(dev); \ \ return sprintf(buf, "%d\n", (int)kit->inputs[value - 1]); \ } #define input_attr(value) \ __ATTR(input##value, S_IRUGO, show_input##value, NULL) show_input(1); show_input(2); show_input(3); show_input(4); show_input(5); show_input(6); show_input(7); show_input(8); show_input(9); show_input(10); show_input(11); show_input(12); show_input(13); show_input(14);