diff options
Diffstat (limited to 'drivers/usb/misc/usbled.c')
| -rw-r--r-- | drivers/usb/misc/usbled.c | 76 |
1 files changed, 49 insertions, 27 deletions
diff --git a/drivers/usb/misc/usbled.c b/drivers/usb/misc/usbled.c index 1616ad1793a..bdef0d6eb91 100644 --- a/drivers/usb/misc/usbled.c +++ b/drivers/usb/misc/usbled.c @@ -11,7 +11,6 @@ #include <linux/kernel.h> #include <linux/errno.h> -#include <linux/init.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/usb.h> @@ -23,20 +22,43 @@ enum led_type { DELCOM_VISUAL_SIGNAL_INDICATOR, DREAM_CHEEKY_WEBMAIL_NOTIFIER, + RISO_KAGAKU_LED }; +/* the Webmail LED made by RISO KAGAKU CORP. decodes a color index + internally, we want to keep the red+green+blue sysfs api, so we decode + from 1-bit RGB to the riso kagaku color index according to this table... */ + +static unsigned const char riso_kagaku_tbl[] = { +/* R+2G+4B -> riso kagaku color index */ + [0] = 0, /* black */ + [1] = 2, /* red */ + [2] = 1, /* green */ + [3] = 5, /* yellow */ + [4] = 3, /* blue */ + [5] = 6, /* magenta */ + [6] = 4, /* cyan */ + [7] = 7 /* white */ +}; + +#define RISO_KAGAKU_IX(r,g,b) riso_kagaku_tbl[((r)?1:0)+((g)?2:0)+((b)?4:0)] + /* table of devices that work with this driver */ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x0fc5, 0x1223), .driver_info = DELCOM_VISUAL_SIGNAL_INDICATOR }, { USB_DEVICE(0x1d34, 0x0004), .driver_info = DREAM_CHEEKY_WEBMAIL_NOTIFIER }, + { USB_DEVICE(0x1d34, 0x000a), + .driver_info = DREAM_CHEEKY_WEBMAIL_NOTIFIER }, + { USB_DEVICE(0x1294, 0x1320), + .driver_info = RISO_KAGAKU_LED }, { }, }; -MODULE_DEVICE_TABLE (usb, id_table); +MODULE_DEVICE_TABLE(usb, id_table); struct usb_led { - struct usb_device * udev; + struct usb_device *udev; unsigned char blue; unsigned char red; unsigned char green; @@ -47,6 +69,7 @@ static void change_color(struct usb_led *led) { int retval = 0; unsigned char *buffer; + int actlength; buffer = kmalloc(8, GFP_KERNEL); if (!buffer) { @@ -103,6 +126,18 @@ static void change_color(struct usb_led *led) 2000); break; + case RISO_KAGAKU_LED: + buffer[0] = RISO_KAGAKU_IX(led->red, led->green, led->blue); + buffer[1] = 0; + buffer[2] = 0; + buffer[3] = 0; + buffer[4] = 0; + + retval = usb_interrupt_msg(led->udev, + usb_sndctrlpipe(led->udev, 2), + buffer, 5, &actlength, 1000 /*ms timeout*/); + break; + default: dev_err(&led->udev->dev, "unknown device type %d\n", led->type); } @@ -113,14 +148,16 @@ static void change_color(struct usb_led *led) } #define show_set(value) \ -static ssize_t show_##value(struct device *dev, struct device_attribute *attr, char *buf) \ +static ssize_t show_##value(struct device *dev, struct device_attribute *attr,\ + char *buf) \ { \ struct usb_interface *intf = to_usb_interface(dev); \ struct usb_led *led = usb_get_intfdata(intf); \ \ return sprintf(buf, "%d\n", led->value); \ } \ -static ssize_t set_##value(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ +static ssize_t set_##value(struct device *dev, struct device_attribute *attr,\ + const char *buf, size_t count) \ { \ struct usb_interface *intf = to_usb_interface(dev); \ struct usb_led *led = usb_get_intfdata(intf); \ @@ -135,7 +172,8 @@ show_set(blue); show_set(red); show_set(green); -static int led_probe(struct usb_interface *interface, const struct usb_device_id *id) +static int led_probe(struct usb_interface *interface, + const struct usb_device_id *id) { struct usb_device *udev = interface_to_usbdev(interface); struct usb_led *dev = NULL; @@ -150,7 +188,7 @@ static int led_probe(struct usb_interface *interface, const struct usb_device_id dev->udev = usb_get_dev(udev); dev->type = id->driver_info; - usb_set_intfdata (interface, dev); + usb_set_intfdata(interface, dev); retval = device_create_file(&interface->dev, &dev_attr_blue); if (retval) @@ -194,7 +232,7 @@ error: device_remove_file(&interface->dev, &dev_attr_blue); device_remove_file(&interface->dev, &dev_attr_red); device_remove_file(&interface->dev, &dev_attr_green); - usb_set_intfdata (interface, NULL); + usb_set_intfdata(interface, NULL); usb_put_dev(dev->udev); kfree(dev); error_mem: @@ -205,14 +243,14 @@ static void led_disconnect(struct usb_interface *interface) { struct usb_led *dev; - dev = usb_get_intfdata (interface); + dev = usb_get_intfdata(interface); device_remove_file(&interface->dev, &dev_attr_blue); device_remove_file(&interface->dev, &dev_attr_red); device_remove_file(&interface->dev, &dev_attr_green); /* first remove the files, then set the pointer to NULL */ - usb_set_intfdata (interface, NULL); + usb_set_intfdata(interface, NULL); usb_put_dev(dev->udev); @@ -228,23 +266,7 @@ static struct usb_driver led_driver = { .id_table = id_table, }; -static int __init usb_led_init(void) -{ - int retval = 0; - - retval = usb_register(&led_driver); - if (retval) - err("usb_register failed. Error number %d", retval); - return retval; -} - -static void __exit usb_led_exit(void) -{ - usb_deregister(&led_driver); -} - -module_init (usb_led_init); -module_exit (usb_led_exit); +module_usb_driver(led_driver); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); |