diff options
| -rw-r--r-- | drivers/usb/misc/phidgetkit.c | 303 |
1 files changed, 218 insertions, 85 deletions
diff --git a/drivers/usb/misc/phidgetkit.c b/drivers/usb/misc/phidgetkit.c index 997db5d..13aeea2 100644 --- a/drivers/usb/misc/phidgetkit.c +++ b/drivers/usb/misc/phidgetkit.c @@ -1,7 +1,8 @@ /* * USB PhidgetInterfaceKit driver 1.0 * - * Copyright (C) 2004 Sean Young <sean@mess.org> + * 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 @@ -25,6 +26,7 @@ #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 @@ -32,7 +34,9 @@ #define USB_VENDOR_ID_WISEGROUP 0x0925 #define USB_DEVICE_ID_INTERFACEKIT884 0x8201 -#define MAX_INTERFACES 8 +#define MAX_INTERFACES 16 + +#define URB_INT_SIZE 8 struct driver_interfacekit { int sensors; @@ -52,19 +56,24 @@ ifkit(8, 8, 8, 0); ifkit(0, 4, 7, 1); ifkit(8, 8, 4, 0); ifkit(0, 8, 8, 1); +ifkit(0, 16, 16, 0); -struct phidget_interfacekit { +struct interfacekit { struct usb_device *udev; struct usb_interface *intf; struct driver_interfacekit *ifkit; - int outputs[MAX_INTERFACES]; - int inputs[MAX_INTERFACES]; - int sensors[MAX_INTERFACES]; + unsigned long outputs; + u8 inputs[MAX_INTERFACES]; + u16 sensors[MAX_INTERFACES]; u8 lcd_files_on; struct urb *irq; unsigned char *data; dma_addr_t data_dma; + + struct work_struct do_notify; + unsigned long input_events; + unsigned long sensor_events; }; static struct usb_device_id id_table[] = { @@ -76,33 +85,33 @@ static struct usb_device_id id_table[] = { .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 change_outputs(struct phidget_interfacekit *kit, int output_num, int enable) +static int change_outputs(struct interfacekit *kit, int output_num, int enable) { - unsigned char *buffer; + u8 *buffer; int retval; - int n; + + if (enable) + set_bit(output_num, &kit->outputs); + else + clear_bit(output_num, &kit->outputs); buffer = kzalloc(4, GFP_KERNEL); if (!buffer) { - dev_err(&kit->udev->dev, "%s - out of memory\n", - __FUNCTION__); + dev_err(&kit->udev->dev, "%s - out of memory\n", __FUNCTION__); return -ENOMEM; } + buffer[0] = (u8)kit->outputs; + buffer[1] = (u8)(kit->outputs >> 8); - kit->outputs[output_num] = enable; - for (n=0; n<8; n++) { - if (kit->outputs[n]) { - buffer[0] |= 1 << n; - } - } - - dev_dbg(&kit->udev->dev, "sending data: %02x\n", buffer[0]); + dev_dbg(&kit->udev->dev, "sending data: 0x%04x\n", (u16)kit->outputs); retval = usb_control_msg(kit->udev, usb_sndctrlpipe(kit->udev, 0), @@ -116,10 +125,10 @@ static int change_outputs(struct phidget_interfacekit *kit, int output_num, int return retval < 0 ? retval : 0; } -static int change_string(struct phidget_interfacekit *kit, const char *display, unsigned char row) +static int change_string(struct interfacekit *kit, const char *display, unsigned char row) { unsigned char *buffer; - unsigned char *form_buffer; + unsigned char *form_buffer; int retval = -ENOMEM; int i,j, len, buf_ptr; @@ -175,7 +184,7 @@ exit: static ssize_t lcd_line_##number(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ { \ struct usb_interface *intf = to_usb_interface(dev); \ - struct phidget_interfacekit *kit = usb_get_intfdata(intf); \ + struct interfacekit *kit = usb_get_intfdata(intf); \ change_string(kit, buf, number - 1); \ return count; \ } \ @@ -186,7 +195,7 @@ set_lcd_line(2); static ssize_t set_backlight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct usb_interface *intf = to_usb_interface(dev); - struct phidget_interfacekit *kit = usb_get_intfdata(intf); + struct interfacekit *kit = usb_get_intfdata(intf); int enabled; unsigned char *buffer; int retval = -ENOMEM; @@ -220,7 +229,7 @@ exit: } static DEVICE_ATTR(backlight, S_IWUGO, NULL, set_backlight); -static void remove_lcd_files(struct phidget_interfacekit *kit) +static void remove_lcd_files(struct interfacekit *kit) { if (kit->lcd_files_on) { dev_dbg(&kit->udev->dev, "Removing lcd files\n"); @@ -233,7 +242,7 @@ static void remove_lcd_files(struct phidget_interfacekit *kit) static ssize_t enable_lcd_files(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct usb_interface *intf = to_usb_interface(dev); - struct phidget_interfacekit *kit = usb_get_intfdata(intf); + struct interfacekit *kit = usb_get_intfdata(intf); int enable; if (kit->ifkit->has_lcd == 0) @@ -263,10 +272,10 @@ static DEVICE_ATTR(lcd, S_IWUGO, NULL, enable_lcd_files); static void interfacekit_irq(struct urb *urb, struct pt_regs *regs) { - struct phidget_interfacekit *kit = urb->context; + struct interfacekit *kit = urb->context; unsigned char *buffer = kit->data; + int i, level, sensor; int status; - int n; switch (urb->status) { case 0: /* success */ @@ -280,22 +289,63 @@ static void interfacekit_irq(struct urb *urb, struct pt_regs *regs) goto resubmit; } - for (n=0; n<8; n++) { - kit->inputs[n] = buffer[1] & (1 << n) ? 1 : 0; + /* 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); + } + } } - if (buffer[0] & 1) { - kit->sensors[4] = buffer[2] + (buffer[3] & 0x0f) * 256; - kit->sensors[5] = buffer[4] + (buffer[3] & 0xf0) * 16; - kit->sensors[6] = buffer[5] + (buffer[6] & 0x0f) * 256; - kit->sensors[7] = buffer[7] + (buffer[6] & 0xf0) * 16; - } else { - kit->sensors[0] = buffer[2] + (buffer[3] & 0x0f) * 256; - kit->sensors[1] = buffer[4] + (buffer[3] & 0xf0) * 16; - kit->sensors[2] = buffer[5] + (buffer[6] & 0x0f) * 256; - kit->sensors[3] = buffer[7] + (buffer[6] & 0xf0) * 16; + /* 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_work(&kit->do_notify); + resubmit: status = usb_submit_urb(urb, SLAB_ATOMIC); if (status) @@ -304,20 +354,40 @@ resubmit: kit->udev->devpath, status); } +static void do_notify(void *data) +{ + struct interfacekit *kit = data; + 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->intf->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->intf->dev.kobj, NULL, sysfs_file); + } + } +} + #define show_set_output(value) \ -static ssize_t set_output##value(struct device *dev, struct device_attribute *attr, const char *buf, \ +static ssize_t set_output##value(struct device *dev, struct device_attribute *attr, const char *buf, \ size_t count) \ { \ struct usb_interface *intf = to_usb_interface(dev); \ - struct phidget_interfacekit *kit = usb_get_intfdata(intf); \ + struct interfacekit *kit = usb_get_intfdata(intf); \ int enabled; \ int retval; \ \ - if (sscanf(buf, "%d", &enabled) < 1) { \ + if (sscanf(buf, "%d", &enabled) < 1) \ return -EINVAL; \ - } \ \ - retval = change_outputs(kit, value - 1, enabled ? 1 : 0); \ + retval = change_outputs(kit, value - 1, enabled); \ \ return retval ? retval : count; \ } \ @@ -325,9 +395,9 @@ static ssize_t set_output##value(struct device *dev, struct device_attribute *at static ssize_t show_output##value(struct device *dev, struct device_attribute *attr, char *buf) \ { \ struct usb_interface *intf = to_usb_interface(dev); \ - struct phidget_interfacekit *kit = usb_get_intfdata(intf); \ + struct interfacekit *kit = usb_get_intfdata(intf); \ \ - return sprintf(buf, "%d\n", kit->outputs[value - 1]); \ + return sprintf(buf, "%d\n", !!test_bit(value - 1, &kit->outputs));\ } \ static DEVICE_ATTR(output##value, S_IWUGO | S_IRUGO, \ show_output##value, set_output##value); @@ -338,15 +408,23 @@ show_set_output(4); show_set_output(5); show_set_output(6); show_set_output(7); -show_set_output(8); /* should be MAX_INTERFACES - 1 */ +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); #define show_input(value) \ static ssize_t show_input##value(struct device *dev, struct device_attribute *attr, char *buf) \ { \ struct usb_interface *intf = to_usb_interface(dev); \ - struct phidget_interfacekit *kit = usb_get_intfdata(intf); \ + struct interfacekit *kit = usb_get_intfdata(intf); \ \ - return sprintf(buf, "%d\n", kit->inputs[value - 1]); \ + return sprintf(buf, "%d\n", (int)kit->inputs[value - 1]); \ } \ static DEVICE_ATTR(input##value, S_IRUGO, show_input##value, NULL); @@ -357,15 +435,23 @@ show_input(4); show_input(5); show_input(6); show_input(7); -show_input(8); /* should be MAX_INTERFACES - 1 */ +show_input(8); +show_input(9); +show_input(10); +show_input(11); +show_input(12); +show_input(13); +show_input(14); +show_input(15); +show_input(16); #define show_sensor(value) \ static ssize_t show_sensor##value(struct device *dev, struct device_attribute *attr, char *buf) \ { \ struct usb_interface *intf = to_usb_interface(dev); \ - struct phidget_interfacekit *kit = usb_get_intfdata(intf); \ + struct interfacekit *kit = usb_get_intfdata(intf); \ \ - return sprintf(buf, "%d\n", kit->sensors[value - 1]); \ + return sprintf(buf, "%d\n", (int)kit->sensors[value - 1]); \ } \ static DEVICE_ATTR(sensor##value, S_IRUGO, show_sensor##value, NULL); @@ -376,16 +462,16 @@ show_sensor(4); show_sensor(5); show_sensor(6); show_sensor(7); -show_sensor(8); /* should be MAX_INTERFACES - 1 */ +show_sensor(8); static int interfacekit_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 phidget_interfacekit *kit; + struct interfacekit *kit; struct driver_interfacekit *ifkit; - int pipe, maxp; + int pipe, maxp, rc = -ENOMEM; ifkit = (struct driver_interfacekit *)id->driver_info; if (!ifkit) @@ -405,29 +491,23 @@ static int interfacekit_probe(struct usb_interface *intf, const struct usb_devic maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); kit = kzalloc(sizeof(*kit), GFP_KERNEL); - if (kit == NULL) { - dev_err(&intf->dev, "%s - out of memory\n", __FUNCTION__); - return -ENOMEM; - } - kit->ifkit = ifkit; + if (!kit) + goto out; - kit->data = usb_buffer_alloc(dev, 8, SLAB_ATOMIC, &kit->data_dma); - if (!kit->data) { - kfree(kit); - return -ENOMEM; - } + kit->ifkit = ifkit; + kit->data = usb_buffer_alloc(dev, URB_INT_SIZE, SLAB_ATOMIC, &kit->data_dma); + if (!kit->data) + goto out; kit->irq = usb_alloc_urb(0, GFP_KERNEL); - if (!kit->irq) { - usb_buffer_free(dev, 8, kit->data, kit->data_dma); - kfree(kit); - return -ENOMEM; - } + if (!kit->irq) + goto out; kit->udev = usb_get_dev(dev); kit->intf = intf; + INIT_WORK(&kit->do_notify, do_notify, kit); usb_fill_int_urb(kit->irq, kit->udev, pipe, kit->data, - (maxp > 8 ? 8 : maxp), + maxp > URB_INT_SIZE ? URB_INT_SIZE : maxp, interfacekit_irq, kit, endpoint->bInterval); kit->irq->transfer_dma = kit->data_dma; kit->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; @@ -435,7 +515,8 @@ static int interfacekit_probe(struct usb_interface *intf, const struct usb_devic usb_set_intfdata(intf, kit); if (usb_submit_urb(kit->irq, GFP_KERNEL)) { - return -EIO; + rc = -EIO; + goto out; } if (ifkit->outputs >= 4) { @@ -444,12 +525,22 @@ static int interfacekit_probe(struct usb_interface *intf, const struct usb_devic device_create_file(&intf->dev, &dev_attr_output3); device_create_file(&intf->dev, &dev_attr_output4); } - if (ifkit->outputs == 8) { + if (ifkit->outputs >= 8) { device_create_file(&intf->dev, &dev_attr_output5); device_create_file(&intf->dev, &dev_attr_output6); device_create_file(&intf->dev, &dev_attr_output7); device_create_file(&intf->dev, &dev_attr_output8); } + if (ifkit->outputs == 16) { + device_create_file(&intf->dev, &dev_attr_output9); + device_create_file(&intf->dev, &dev_attr_output10); + device_create_file(&intf->dev, &dev_attr_output11); + device_create_file(&intf->dev, &dev_attr_output12); + device_create_file(&intf->dev, &dev_attr_output13); + device_create_file(&intf->dev, &dev_attr_output14); + device_create_file(&intf->dev, &dev_attr_output15); + device_create_file(&intf->dev, &dev_attr_output16); + } if (ifkit->inputs >= 4) { device_create_file(&intf->dev, &dev_attr_input1); @@ -457,12 +548,22 @@ static int interfacekit_probe(struct usb_interface *intf, const struct usb_devic device_create_file(&intf->dev, &dev_attr_input3); device_create_file(&intf->dev, &dev_attr_input4); } - if (ifkit->inputs == 8) { + if (ifkit->inputs >= 8) { device_create_file(&intf->dev, &dev_attr_input5); device_create_file(&intf->dev, &dev_attr_input6); device_create_file(&intf->dev, &dev_attr_input7); device_create_file(&intf->dev, &dev_attr_input8); } + if (ifkit->inputs == 16) { + device_create_file(&intf->dev, &dev_attr_input9); + device_create_file(&intf->dev, &dev_attr_input10); + device_create_file(&intf->dev, &dev_attr_input11); + device_create_file(&intf->dev, &dev_attr_input12); + device_create_file(&intf->dev, &dev_attr_input13); + device_create_file(&intf->dev, &dev_attr_input14); + device_create_file(&intf->dev, &dev_attr_input15); + device_create_file(&intf->dev, &dev_attr_input16); + } if (ifkit->sensors >= 4) { device_create_file(&intf->dev, &dev_attr_sensor1); @@ -475,9 +576,8 @@ static int interfacekit_probe(struct usb_interface *intf, const struct usb_devic device_create_file(&intf->dev, &dev_attr_sensor6); device_create_file(&intf->dev, &dev_attr_sensor7); } - if (ifkit->sensors == 8) { + if (ifkit->sensors == 8) device_create_file(&intf->dev, &dev_attr_sensor8); - } if (ifkit->has_lcd) device_create_file(&intf->dev, &dev_attr_lcd); @@ -486,29 +586,56 @@ static int interfacekit_probe(struct usb_interface *intf, const struct usb_devic ifkit->sensors, ifkit->inputs, ifkit->outputs); return 0; + +out: + if (kit) { + if (kit->irq) + usb_free_urb(kit->irq); + if (kit->data) + usb_buffer_free(dev, URB_INT_SIZE, kit->data, kit->data_dma); + kfree(kit); + } + + return rc; } static void interfacekit_disconnect(struct usb_interface *interface) { - struct phidget_interfacekit *kit; + struct interfacekit *kit; kit = usb_get_intfdata(interface); usb_set_intfdata(interface, NULL); if (!kit) return; + usb_kill_urb(kit->irq); + usb_free_urb(kit->irq); + usb_buffer_free(kit->udev, URB_INT_SIZE, kit->data, kit->data_dma); + + cancel_delayed_work(&kit->do_notify); + if (kit->ifkit->outputs >= 4) { device_remove_file(&interface->dev, &dev_attr_output1); device_remove_file(&interface->dev, &dev_attr_output2); device_remove_file(&interface->dev, &dev_attr_output3); device_remove_file(&interface->dev, &dev_attr_output4); } - if (kit->ifkit->outputs == 8) { + if (kit->ifkit->outputs >= 8) { device_remove_file(&interface->dev, &dev_attr_output5); device_remove_file(&interface->dev, &dev_attr_output6); device_remove_file(&interface->dev, &dev_attr_output7); device_remove_file(&interface->dev, &dev_attr_output8); } + if (kit->ifkit->outputs == 16) { + device_remove_file(&interface->dev, &dev_attr_output9); + device_remove_file(&interface->dev, &dev_attr_output10); + device_remove_file(&interface->dev, &dev_attr_output11); + device_remove_file(&interface->dev, &dev_attr_output12); + device_remove_file(&interface->dev, &dev_attr_output13); + device_remove_file(&interface->dev, &dev_attr_output14); + device_remove_file(&interface->dev, &dev_attr_output15); + device_remove_file(&interface->dev, &dev_attr_output16); + } if (kit->ifkit->inputs >= 4) { device_remove_file(&interface->dev, &dev_attr_input1); @@ -516,12 +643,22 @@ static void interfacekit_disconnect(struct usb_interface *interface) device_remove_file(&interface->dev, &dev_attr_input3); device_remove_file(&interface->dev, &dev_attr_input4); } - if (kit->ifkit->inputs == 8) { + if (kit->ifkit->inputs >= 8) { device_remove_file(&interface->dev, &dev_attr_input5); device_remove_file(&interface->dev, &dev_attr_input6); device_remove_file(&interface->dev, &dev_attr_input7); device_remove_file(&interface->dev, &dev_attr_input8); } + if (kit->ifkit->inputs == 16) { + device_remove_file(&interface->dev, &dev_attr_input9); + device_remove_file(&interface->dev, &dev_attr_input10); + device_remove_file(&interface->dev, &dev_attr_input11); + device_remove_file(&interface->dev, &dev_attr_input12); + device_remove_file(&interface->dev, &dev_attr_input13); + device_remove_file(&interface->dev, &dev_attr_input14); + device_remove_file(&interface->dev, &dev_attr_input15); + device_remove_file(&interface->dev, &dev_attr_input16); + } if (kit->ifkit->sensors >= 4) { device_remove_file(&interface->dev, &dev_attr_sensor1); @@ -534,19 +671,15 @@ static void interfacekit_disconnect(struct usb_interface *interface) device_remove_file(&interface->dev, &dev_attr_sensor6); device_remove_file(&interface->dev, &dev_attr_sensor7); } - if (kit->ifkit->sensors == 8) { + if (kit->ifkit->sensors == 8) device_remove_file(&interface->dev, &dev_attr_sensor8); - } + if (kit->ifkit->has_lcd) device_remove_file(&interface->dev, &dev_attr_lcd); dev_info(&interface->dev, "USB PhidgetInterfaceKit %d/%d/%d detached\n", kit->ifkit->sensors, kit->ifkit->inputs, kit->ifkit->outputs); - usb_kill_urb(kit->irq); - usb_free_urb(kit->irq); - usb_buffer_free(kit->udev, 8, kit->data, kit->data_dma); - usb_put_dev(kit->udev); kfree(kit); } |
