diff options
Diffstat (limited to 'drivers/input/tablet/wacom_sys.c')
| -rw-r--r-- | drivers/input/tablet/wacom_sys.c | 1497 |
1 files changed, 0 insertions, 1497 deletions
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c deleted file mode 100644 index 2c613cd..0000000 --- a/drivers/input/tablet/wacom_sys.c +++ /dev/null @@ -1,1497 +0,0 @@ -/* - * drivers/input/tablet/wacom_sys.c - * - * USB Wacom tablet support - system specific code - */ - -/* - * 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 "wacom_wac.h" -#include "wacom.h" - -/* defines to get HID report descriptor */ -#define HID_DEVICET_HID (USB_TYPE_CLASS | 0x01) -#define HID_DEVICET_REPORT (USB_TYPE_CLASS | 0x02) -#define HID_USAGE_UNDEFINED 0x00 -#define HID_USAGE_PAGE 0x05 -#define HID_USAGE_PAGE_DIGITIZER 0x0d -#define HID_USAGE_PAGE_DESKTOP 0x01 -#define HID_USAGE 0x09 -#define HID_USAGE_X ((HID_USAGE_PAGE_DESKTOP << 16) | 0x30) -#define HID_USAGE_Y ((HID_USAGE_PAGE_DESKTOP << 16) | 0x31) -#define HID_USAGE_PRESSURE ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x30) -#define HID_USAGE_X_TILT ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x3d) -#define HID_USAGE_Y_TILT ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x3e) -#define HID_USAGE_FINGER ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x22) -#define HID_USAGE_STYLUS ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x20) -#define HID_USAGE_CONTACTMAX ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x55) -#define HID_COLLECTION 0xa1 -#define HID_COLLECTION_LOGICAL 0x02 -#define HID_COLLECTION_END 0xc0 - -struct hid_descriptor { - struct usb_descriptor_header header; - __le16 bcdHID; - u8 bCountryCode; - u8 bNumDescriptors; - u8 bDescriptorType; - __le16 wDescriptorLength; -} __attribute__ ((packed)); - -/* defines to get/set USB message */ -#define USB_REQ_GET_REPORT 0x01 -#define USB_REQ_SET_REPORT 0x09 - -#define WAC_HID_FEATURE_REPORT 0x03 -#define WAC_MSG_RETRIES 5 - -#define WAC_CMD_LED_CONTROL 0x20 -#define WAC_CMD_ICON_START 0x21 -#define WAC_CMD_ICON_XFER 0x23 -#define WAC_CMD_RETRIES 10 - -static int wacom_get_report(struct usb_interface *intf, u8 type, u8 id, - void *buf, size_t size, unsigned int retries) -{ - struct usb_device *dev = interface_to_usbdev(intf); - int retval; - - do { - retval = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), - USB_REQ_GET_REPORT, - USB_DIR_IN | USB_TYPE_CLASS | - USB_RECIP_INTERFACE, - (type << 8) + id, - intf->altsetting[0].desc.bInterfaceNumber, - buf, size, 100); - } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); - - return retval; -} - -static int wacom_set_report(struct usb_interface *intf, u8 type, u8 id, - void *buf, size_t size, unsigned int retries) -{ - struct usb_device *dev = interface_to_usbdev(intf); - int retval; - - do { - retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), - USB_REQ_SET_REPORT, - USB_TYPE_CLASS | USB_RECIP_INTERFACE, - (type << 8) + id, - intf->altsetting[0].desc.bInterfaceNumber, - buf, size, 1000); - } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); - - return retval; -} - -static void wacom_sys_irq(struct urb *urb) -{ - struct wacom *wacom = urb->context; - struct device *dev = &wacom->intf->dev; - int retval; - - switch (urb->status) { - case 0: - /* success */ - break; - case -ECONNRESET: - case -ENOENT: - case -ESHUTDOWN: - /* this urb is terminated, clean up */ - dev_dbg(dev, "%s - urb shutting down with status: %d\n", - __func__, urb->status); - return; - default: - dev_dbg(dev, "%s - nonzero urb status received: %d\n", - __func__, urb->status); - goto exit; - } - - wacom_wac_irq(&wacom->wacom_wac, urb->actual_length); - - exit: - usb_mark_last_busy(wacom->usbdev); - retval = usb_submit_urb(urb, GFP_ATOMIC); - if (retval) - dev_err(dev, "%s - usb_submit_urb failed with result %d\n", - __func__, retval); -} - -static int wacom_open(struct input_dev *dev) -{ - struct wacom *wacom = input_get_drvdata(dev); - int retval = 0; - - if (usb_autopm_get_interface(wacom->intf) < 0) - return -EIO; - - mutex_lock(&wacom->lock); - - if (usb_submit_urb(wacom->irq, GFP_KERNEL)) { - retval = -EIO; - goto out; - } - - wacom->open = true; - wacom->intf->needs_remote_wakeup = 1; - -out: - mutex_unlock(&wacom->lock); - usb_autopm_put_interface(wacom->intf); - return retval; -} - -static void wacom_close(struct input_dev *dev) -{ - struct wacom *wacom = input_get_drvdata(dev); - int autopm_error; - - autopm_error = usb_autopm_get_interface(wacom->intf); - - mutex_lock(&wacom->lock); - usb_kill_urb(wacom->irq); - wacom->open = false; - wacom->intf->needs_remote_wakeup = 0; - mutex_unlock(&wacom->lock); - - if (!autopm_error) - usb_autopm_put_interface(wacom->intf); -} - -/* - * Calculate the resolution of the X or Y axis, given appropriate HID data. - * This function is little more than hidinput_calc_abs_res stripped down. - */ -static int wacom_calc_hid_res(int logical_extents, int physical_extents, - unsigned char unit, unsigned char exponent) -{ - int prev, unit_exponent; - - /* Check if the extents are sane */ - if (logical_extents <= 0 || physical_extents <= 0) - return 0; - - /* Get signed value of nybble-sized twos-compliment exponent */ - unit_exponent = exponent; - if (unit_exponent > 7) - unit_exponent -= 16; - - /* Convert physical_extents to millimeters */ - if (unit == 0x11) { /* If centimeters */ - unit_exponent += 1; - } else if (unit == 0x13) { /* If inches */ - prev = physical_extents; - physical_extents *= 254; - if (physical_extents < prev) - return 0; - unit_exponent -= 1; - } else { - return 0; - } - - /* Apply negative unit exponent */ - for (; unit_exponent < 0; unit_exponent++) { - prev = logical_extents; - logical_extents *= 10; - if (logical_extents < prev) - return 0; - } - /* Apply positive unit exponent */ - for (; unit_exponent > 0; unit_exponent--) { - prev = physical_extents; - physical_extents *= 10; - if (physical_extents < prev) - return 0; - } - - /* Calculate resolution */ - return logical_extents / physical_extents; -} - -static int wacom_parse_logical_collection(unsigned char *report, - struct wacom_features *features) -{ - int length = 0; - - if (features->type == BAMBOO_PT) { - - /* Logical collection is only used by 3rd gen Bamboo Touch */ - features->pktlen = WACOM_PKGLEN_BBTOUCH3; - features->device_type = BTN_TOOL_FINGER; - - features->x_max = features->y_max = - get_unaligned_le16(&report[10]); - - length = 11; - } - return length; -} - -static void wacom_retrieve_report_data(struct usb_interface *intf, - struct wacom_features *features) -{ - int result = 0; - unsigned char *rep_data; - - rep_data = kmalloc(2, GFP_KERNEL); - if (rep_data) { - - rep_data[0] = 12; - result = wacom_get_report(intf, WAC_HID_FEATURE_REPORT, - rep_data[0], rep_data, 2, - WAC_MSG_RETRIES); - - if (result >= 0 && rep_data[1] > 2) - features->touch_max = rep_data[1]; - - kfree(rep_data); - } -} - -/* - * Interface Descriptor of wacom devices can be incomplete and - * inconsistent so wacom_features table is used to store stylus - * device's packet lengths, various maximum values, and tablet - * resolution based on product ID's. - * - * For devices that contain 2 interfaces, wacom_features table is - * inaccurate for the touch interface. Since the Interface Descriptor - * for touch interfaces has pretty complete data, this function exists - * to query tablet for this missing information instead of hard coding in - * an additional table. - * - * A typical Interface Descriptor for a stylus will contain a - * boot mouse application collection that is not of interest and this - * function will ignore it. - * - * It also contains a digitizer application collection that also is not - * of interest since any information it contains would be duplicate - * of what is in wacom_features. Usually it defines a report of an array - * of bytes that could be used as max length of the stylus packet returned. - * If it happens to define a Digitizer-Stylus Physical Collection then - * the X and Y logical values contain valid data but it is ignored. - * - * A typical Interface Descriptor for a touch interface will contain a - * Digitizer-Finger Physical Collection which will define both logical - * X/Y maximum as well as the physical size of tablet. Since touch - * interfaces haven't supported pressure or distance, this is enough - * information to override invalid values in the wacom_features table. - * - * 3rd gen Bamboo Touch no longer define a Digitizer-Finger Pysical - * Collection. Instead they define a Logical Collection with a single - * Logical Maximum for both X and Y. - * - * Intuos5 touch interface does not contain useful data. We deal with - * this after returning from this function. - */ -static int wacom_parse_hid(struct usb_interface *intf, - struct hid_descriptor *hid_desc, - struct wacom_features *features) -{ - struct usb_device *dev = interface_to_usbdev(intf); - char limit = 0; - /* result has to be defined as int for some devices */ - int result = 0, touch_max = 0; - int i = 0, page = 0, finger = 0, pen = 0; - unsigned char *report; - - report = kzalloc(hid_desc->wDescriptorLength, GFP_KERNEL); - if (!report) - return -ENOMEM; - - /* retrive report descriptors */ - do { - result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), - USB_REQ_GET_DESCRIPTOR, - USB_RECIP_INTERFACE | USB_DIR_IN, - HID_DEVICET_REPORT << 8, - intf->altsetting[0].desc.bInterfaceNumber, /* interface */ - report, - hid_desc->wDescriptorLength, - 5000); /* 5 secs */ - } while (result < 0 && limit++ < WAC_MSG_RETRIES); - - /* No need to parse the Descriptor. It isn't an error though */ - if (result < 0) - goto out; - - for (i = 0; i < hid_desc->wDescriptorLength; i++) { - - switch (report[i]) { - case HID_USAGE_PAGE: - page = report[i + 1]; - i++; - break; - - case HID_USAGE: - switch (page << 16 | report[i + 1]) { - case HID_USAGE_X: - if (finger) { - features->device_type = BTN_TOOL_FINGER; - /* touch device at least supports one touch point */ - touch_max = 1; - switch (features->type) { - case TABLETPC2FG: - features->pktlen = WACOM_PKGLEN_TPC2FG; - break; - - case MTSCREEN: - case WACOM_24HDT: - features->pktlen = WACOM_PKGLEN_MTOUCH; - break; - - case MTTPC: - case MTTPC_B: - features->pktlen = WACOM_PKGLEN_MTTPC; - break; - - case BAMBOO_PT: - features->pktlen = WACOM_PKGLEN_BBTOUCH; - break; - - default: - features->pktlen = WACOM_PKGLEN_GRAPHIRE; - break; - } - - switch (features->type) { - case BAMBOO_PT: - features->x_phy = - get_unaligned_le16(&report[i + 5]); - features->x_max = - get_unaligned_le16(&report[i + 8]); - i += 15; - break; - - case WACOM_24HDT: - features->x_max = - get_unaligned_le16(&report[i + 3]); - features->x_phy = - get_unaligned_le16(&report[i + 8]); - features->unit = report[i - 1]; - features->unitExpo = report[i - 3]; - i += 12; - break; - - case MTTPC_B: - features->x_max = - get_unaligned_le16(&report[i + 3]); - features->x_phy = - get_unaligned_le16(&report[i + 6]); - features->unit = report[i - 5]; - features->unitExpo = report[i - 3]; - i += 9; - break; - - default: - features->x_max = - get_unaligned_le16(&report[i + 3]); - features->x_phy = - get_unaligned_le16(&report[i + 6]); - features->unit = report[i + 9]; - features->unitExpo = report[i + 11]; - i += 12; - break; - } - } else if (pen) { - /* penabled only accepts exact bytes of data */ - if (features->type >= TABLETPC) - features->pktlen = WACOM_PKGLEN_GRAPHIRE; - features->device_type = BTN_TOOL_PEN; - features->x_max = - get_unaligned_le16(&report[i + 3]); - i += 4; - } - break; - - case HID_USAGE_Y: - if (finger) { - switch (features->type) { - case TABLETPC2FG: - case MTSCREEN: - case MTTPC: - features->y_max = - get_unaligned_le16(&report[i + 3]); - features->y_phy = - get_unaligned_le16(&report[i + 6]); - i += 7; - break; - - case WACOM_24HDT: - features->y_max = - get_unaligned_le16(&report[i + 3]); - features->y_phy = - get_unaligned_le16(&report[i - 2]); - i += 7; - break; - - case BAMBOO_PT: - features->y_phy = - get_unaligned_le16(&report[i + 3]); - features->y_max = - get_unaligned_le16(&report[i + 6]); - i += 12; - break; - - case MTTPC_B: - features->y_max = - get_unaligned_le16(&report[i + 3]); - features->y_phy = - get_unaligned_le16(&report[i + 6]); - i += 9; - break; - - default: - features->y_max = - features->x_max; - features->y_phy = - get_unaligned_le16(&report[i + 3]); - i += 4; - break; - } - } else if (pen) { - features->y_max = - get_unaligned_le16(&report[i + 3]); - i += 4; - } - break; - - case HID_USAGE_FINGER: - finger = 1; - i++; - break; - - /* - * Requiring Stylus Usage will ignore boot mouse - * X/Y values and some cases of invalid Digitizer X/Y - * values commonly reported. - */ - case HID_USAGE_STYLUS: - pen = 1; - i++; - break; - - case HID_USAGE_CONTACTMAX: - /* leave touch_max as is if predefined */ - if (!features->touch_max) - wacom_retrieve_report_data(intf, features); - i++; - break; - - case HID_USAGE_PRESSURE: - if (pen) { - features->pressure_max = - get_unaligned_le16(&report[i + 3]); - i += 4; - } - break; - } - break; - - case HID_COLLECTION_END: - /* reset UsagePage and Finger */ - finger = page = 0; - break; - - case HID_COLLECTION: - i++; - switch (report[i]) { - case HID_COLLECTION_LOGICAL: - i += wacom_parse_logical_collection(&report[i], - features); - break; - } - break; - } - } - - out: - if (!features->touch_max && touch_max) - features->touch_max = touch_max; - result = 0; - kfree(report); - return result; -} - -static int wacom_set_device_mode(struct usb_interface *intf, int report_id, int length, int mode) -{ - unsigned char *rep_data; - int error = -ENOMEM, limit = 0; - - rep_data = kzalloc(length, GFP_KERNEL); - if (!rep_data) - return error; - - do { - rep_data[0] = report_id; - rep_data[1] = mode; - - error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT, - report_id, rep_data, length, 1); - } while ((error < 0 || rep_data[1] != mode) && limit++ < WAC_MSG_RETRIES); - - kfree(rep_data); - - return error < 0 ? error : 0; -} - -/* - * Switch the tablet into its most-capable mode. Wacom tablets are - * typically configured to power-up in a mode which sends mouse-like - * reports to the OS. To get absolute position, pressure data, etc. - * from the tablet, it is necessary to switch the tablet out of this - * mode and into one which sends the full range of tablet data. - */ -static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_features *features) -{ - if (features->device_type == BTN_TOOL_FINGER) { - if (features->type > TABLETPC) { - /* MT Tablet PC touch */ - return wacom_set_device_mode(intf, 3, 4, 4); - } - else if (features->type == WACOM_24HDT || features->type == CINTIQ_HYBRID) { - return wacom_set_device_mode(intf, 18, 3, 2); - } - } else if (features->device_type == BTN_TOOL_PEN) { - if (features->type <= BAMBOO_PT && features->type != WIRELESS) { - return wacom_set_device_mode(intf, 2, 2, 2); - } - } - - return 0; -} - -static int wacom_retrieve_hid_descriptor(struct usb_interface *intf, - struct wacom_features *features) -{ - int error = 0; - struct usb_host_interface *interface = intf->cur_altsetting; - struct hid_descriptor *hid_desc; - - /* default features */ - features->device_type = BTN_TOOL_PEN; - features->x_fuzz = 4; - features->y_fuzz = 4; - features->pressure_fuzz = 0; - features->distance_fuzz = 0; - - /* - * The wireless device HID is basic and layout conflicts with - * other tablets (monitor and touch interface can look like pen). - * Skip the query for this type and modify defaults based on - * interface number. - */ - if (features->type == WIRELESS) { - if (intf->cur_altsetting->desc.bInterfaceNumber == 0) { - features->device_type = 0; - } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) { - features->device_type = BTN_TOOL_FINGER; - features->pktlen = WACOM_PKGLEN_BBTOUCH3; - } - } - - /* only devices that support touch need to retrieve the info */ - if (features->type < BAMBOO_PT) { - goto out; - } - - error = usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc); - if (error) { - error = usb_get_extra_descriptor(&interface->endpoint[0], - HID_DEVICET_REPORT, &hid_desc); - if (error) { - dev_err(&intf->dev, - "can not retrieve extra class descriptor\n"); - goto out; - } - } - error = wacom_parse_hid(intf, hid_desc, features); - - out: - return error; -} - -struct wacom_usbdev_data { - struct list_head list; - struct kref kref; - struct usb_device *dev; - struct wacom_shared shared; -}; - -static LIST_HEAD(wacom_udev_list); -static DEFINE_MUTEX(wacom_udev_list_lock); - -static struct usb_device *wacom_get_sibling(struct usb_device *dev, int vendor, int product) -{ - int port1; - struct usb_device *sibling; - - if (vendor == 0 && product == 0) - return dev; - - if (dev->parent == NULL) - return NULL; - - usb_hub_for_each_child(dev->parent, port1, sibling) { - struct usb_device_descriptor *d; - if (sibling == NULL) - continue; - - d = &sibling->descriptor; - if (d->idVendor == vendor && d->idProduct == product) - return sibling; - } - - return NULL; -} - -static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev) -{ - struct wacom_usbdev_data *data; - - list_for_each_entry(data, &wacom_udev_list, list) { - if (data->dev == dev) { - kref_get(&data->kref); - return data; - } - } - - return NULL; -} - -static int wacom_add_shared_data(struct wacom_wac *wacom, - struct usb_device *dev) -{ - struct wacom_usbdev_data *data; - int retval = 0; - - mutex_lock(&wacom_udev_list_lock); - - data = wacom_get_usbdev_data(dev); - if (!data) { - data = kzalloc(sizeof(struct wacom_usbdev_data), GFP_KERNEL); - if (!data) { - retval = -ENOMEM; - goto out; - } - - kref_init(&data->kref); - data->dev = dev; - list_add_tail(&data->list, &wacom_udev_list); - } - - wacom->shared = &data->shared; - -out: - mutex_unlock(&wacom_udev_list_lock); - return retval; -} - -static void wacom_release_shared_data(struct kref *kref) -{ - struct wacom_usbdev_data *data = - container_of(kref, struct wacom_usbdev_data, kref); - - mutex_lock(&wacom_udev_list_lock); - list_del(&data->list); - mutex_unlock(&wacom_udev_list_lock); - - kfree(data); -} - -static void wacom_remove_shared_data(struct wacom_wac *wacom) -{ - struct wacom_usbdev_data *data; - - if (wacom->shared) { - data = container_of(wacom->shared, struct wacom_usbdev_data, shared); - kref_put(&data->kref, wacom_release_shared_data); - wacom->shared = NULL; - } -} - -static int wacom_led_control(struct wacom *wacom) -{ - unsigned char *buf; - int retval; - - buf = kzalloc(9, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - if (wacom->wacom_wac.features.type >= INTUOS5S && - wacom->wacom_wac.features.type <= INTUOSPL) { - /* - * Touch Ring and crop mark LED luminance may take on - * one of four values: - * 0 = Low; 1 = Medium; 2 = High; 3 = Off - */ - int ring_led = wacom->led.select[0] & 0x03; - int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03; - int crop_lum = 0; - - buf[0] = WAC_CMD_LED_CONTROL; - buf[1] = (crop_lum << 4) | (ring_lum << 2) | (ring_led); - } - else { - int led = wacom->led.select[0] | 0x4; - - if (wacom->wacom_wac.features.type == WACOM_21UX2 || - wacom->wacom_wac.features.type == WACOM_24HD) - led |= (wacom->led.select[1] << 4) | 0x40; - - buf[0] = WAC_CMD_LED_CONTROL; - buf[1] = led; - buf[2] = wacom->led.llv; - buf[3] = wacom->led.hlv; - buf[4] = wacom->led.img_lum; - } - - retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_LED_CONTROL, - buf, 9, WAC_CMD_RETRIES); - kfree(buf); - - return retval; -} - -static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *img) -{ - unsigned char *buf; - int i, retval; - - buf = kzalloc(259, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - /* Send 'start' command */ - buf[0] = WAC_CMD_ICON_START; - buf[1] = 1; - retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, - buf, 2, WAC_CMD_RETRIES); - if (retval < 0) - goto out; - - buf[0] = WAC_CMD_ICON_XFER; - buf[1] = button_id & 0x07; - for (i = 0; i < 4; i++) { - buf[2] = i; - memcpy(buf + 3, img + i * 256, 256); - - retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_XFER, - buf, 259, WAC_CMD_RETRIES); - if (retval < 0) - break; - } - - /* Send 'stop' */ - buf[0] = WAC_CMD_ICON_START; - buf[1] = 0; - wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, - buf, 2, WAC_CMD_RETRIES); - -out: - kfree(buf); - return retval; -} - -static ssize_t wacom_led_select_store(struct device *dev, int set_id, - const char *buf, size_t count) -{ - struct wacom *wacom = dev_get_drvdata(dev); - unsigned int id; - int err; - - err = kstrtouint(buf, 10, &id); - if (err) - return err; - - mutex_lock(&wacom->lock); - - wacom->led.select[set_id] = id & 0x3; - err = wacom_led_control(wacom); - - mutex_unlock(&wacom->lock); - - return err < 0 ? err : count; -} - -#define DEVICE_LED_SELECT_ATTR(SET_ID) \ -static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \ - struct device_attribute *attr, const char *buf, size_t count) \ -{ \ - return wacom_led_select_store(dev, SET_ID, buf, count); \ -} \ -static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \ - struct device_attribute *attr, char *buf) \ -{ \ - struct wacom *wacom = dev_get_drvdata(dev); \ - return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \ -} \ -static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \ - wacom_led##SET_ID##_select_show, \ - wacom_led##SET_ID##_select_store) - -DEVICE_LED_SELECT_ATTR(0); -DEVICE_LED_SELECT_ATTR(1); - -static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest, - const char *buf, size_t count) -{ - unsigned int value; - int err; - - err = kstrtouint(buf, 10, &value); - if (err) - return err; - - mutex_lock(&wacom->lock); - - *dest = value & 0x7f; - err = wacom_led_control(wacom); - - mutex_unlock(&wacom->lock); - - return err < 0 ? err : count; -} - -#define DEVICE_LUMINANCE_ATTR(name, field) \ -static ssize_t wacom_##name##_luminance_store(struct device *dev, \ - struct device_attribute *attr, const char *buf, size_t count) \ -{ \ - struct wacom *wacom = dev_get_drvdata(dev); \ - \ - return wacom_luminance_store(wacom, &wacom->led.field, \ - buf, count); \ -} \ -static DEVICE_ATTR(name##_luminance, S_IWUSR, \ - NULL, wacom_##name##_luminance_store) - -DEVICE_LUMINANCE_ATTR(status0, llv); -DEVICE_LUMINANCE_ATTR(status1, hlv); -DEVICE_LUMINANCE_ATTR(buttons, img_lum); - -static ssize_t wacom_button_image_store(struct device *dev, int button_id, - const char *buf, size_t count) -{ - struct wacom *wacom = dev_get_drvdata(dev); - int err; - - if (count != 1024) - return -EINVAL; - - mutex_lock(&wacom->lock); - - err = wacom_led_putimage(wacom, button_id, buf); - - mutex_unlock(&wacom->lock); - - return err < 0 ? err : count; -} - -#define DEVICE_BTNIMG_ATTR(BUTTON_ID) \ -static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \ - struct device_attribute *attr, const char *buf, size_t count) \ -{ \ - return wacom_button_image_store(dev, BUTTON_ID, buf, count); \ -} \ -static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \ - NULL, wacom_btnimg##BUTTON_ID##_store) - -DEVICE_BTNIMG_ATTR(0); -DEVICE_BTNIMG_ATTR(1); -DEVICE_BTNIMG_ATTR(2); -DEVICE_BTNIMG_ATTR(3); -DEVICE_BTNIMG_ATTR(4); -DEVICE_BTNIMG_ATTR(5); -DEVICE_BTNIMG_ATTR(6); -DEVICE_BTNIMG_ATTR(7); - -static struct attribute *cintiq_led_attrs[] = { - &dev_attr_status_led0_select.attr, - &dev_attr_status_led1_select.attr, - NULL -}; - -static struct attribute_group cintiq_led_attr_group = { - .name = "wacom_led", - .attrs = cintiq_led_attrs, -}; - -static struct attribute *intuos4_led_attrs[] = { - &dev_attr_status0_luminance.attr, - &dev_attr_status1_luminance.attr, - &dev_attr_status_led0_select.attr, - &dev_attr_buttons_luminance.attr, - &dev_attr_button0_rawimg.attr, - &dev_attr_button1_rawimg.attr, - &dev_attr_button2_rawimg.attr, - &dev_attr_button3_rawimg.attr, - &dev_attr_button4_rawimg.attr, - &dev_attr_button5_rawimg.attr, - &dev_attr_button6_rawimg.attr, - &dev_attr_button7_rawimg.attr, - NULL -}; - -static struct attribute_group intuos4_led_attr_group = { - .name = "wacom_led", - .attrs = intuos4_led_attrs, -}; - -static struct attribute *intuos5_led_attrs[] = { - &dev_attr_status0_luminance.attr, - &dev_attr_status_led0_select.attr, - NULL -}; - -static struct attribute_group intuos5_led_attr_group = { - .name = "wacom_led", - .attrs = intuos5_led_attrs, -}; - -static int wacom_initialize_leds(struct wacom *wacom) -{ - int error; - - /* Initialize default values */ - switch (wacom->wacom_wac.features.type) { - case INTUOS4S: - case INTUOS4: - case INTUOS4L: - wacom->led.select[0] = 0; - wacom->led.select[1] = 0; - wacom->led.llv = 10; - wacom->led.hlv = 20; - wacom->led.img_lum = 10; - error = sysfs_create_group(&wacom->intf->dev.kobj, - &intuos4_led_attr_group); - break; - - case WACOM_24HD: - case WACOM_21UX2: - wacom->led.select[0] = 0; - wacom->led.select[1] = 0; - wacom->led.llv = 0; - wacom->led.hlv = 0; - wacom->led.img_lum = 0; - - error = sysfs_create_group(&wacom->intf->dev.kobj, - &cintiq_led_attr_group); - break; - - case INTUOS5S: - case INTUOS5: - case INTUOS5L: - case INTUOSPS: - case INTUOSPM: - case INTUOSPL: - if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) { - wacom->led.select[0] = 0; - wacom->led.select[1] = 0; - wacom->led.llv = 32; - wacom->led.hlv = 0; - wacom->led.img_lum = 0; - - error = sysfs_create_group(&wacom->intf->dev.kobj, - &intuos5_led_attr_group); - } else - return 0; - break; - - default: - return 0; - } - - if (error) { - dev_err(&wacom->intf->dev, - "cannot create sysfs group err: %d\n", error); - return error; - } - wacom_led_control(wacom); - - return 0; -} - -static void wacom_destroy_leds(struct wacom *wacom) -{ - switch (wacom->wacom_wac.features.type) { - case INTUOS4S: - case INTUOS4: - case INTUOS4L: - sysfs_remove_group(&wacom->intf->dev.kobj, - &intuos4_led_attr_group); - break; - - case WACOM_24HD: - case WACOM_21UX2: - sysfs_remove_group(&wacom->intf->dev.kobj, - &cintiq_led_attr_group); - break; - - case INTUOS5S: - case INTUOS5: - case INTUOS5L: - case INTUOSPS: - case INTUOSPM: - case INTUOSPL: - if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) - sysfs_remove_group(&wacom->intf->dev.kobj, - &intuos5_led_attr_group); - break; - } -} - -static enum power_supply_property wacom_battery_props[] = { - POWER_SUPPLY_PROP_SCOPE, - POWER_SUPPLY_PROP_CAPACITY -}; - -static int wacom_battery_get_property(struct power_supply *psy, - enum power_supply_property psp, - union power_supply_propval *val) -{ - struct wacom *wacom = container_of(psy, struct wacom, battery); - int ret = 0; - - switch (psp) { - case POWER_SUPPLY_PROP_SCOPE: - val->intval = POWER_SUPPLY_SCOPE_DEVICE; - break; - case POWER_SUPPLY_PROP_CAPACITY: - val->intval = - wacom->wacom_wac.battery_capacity * 100 / 31; - break; - default: - ret = -EINVAL; - break; - } - - return ret; -} - -static int wacom_initialize_battery(struct wacom *wacom) -{ - int error = 0; - - if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) { - wacom->battery.properties = wacom_battery_props; - wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props); - wacom->battery.get_property = wacom_battery_get_property; - wacom->battery.name = "wacom_battery"; - wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY; - wacom->battery.use_for_apm = 0; - - error = power_supply_register(&wacom->usbdev->dev, - &wacom->battery); - - if (!error) - power_supply_powers(&wacom->battery, - &wacom->usbdev->dev); - } - - return error; -} - -static void wacom_destroy_battery(struct wacom *wacom) -{ - if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR && - wacom->battery.dev) { - power_supply_unregister(&wacom->battery); - wacom->battery.dev = NULL; - } -} - -static int wacom_register_input(struct wacom *wacom) -{ - struct input_dev *input_dev; - struct usb_interface *intf = wacom->intf; - struct usb_device *dev = interface_to_usbdev(intf); - struct wacom_wac *wacom_wac = &(wacom->wacom_wac); - int error; - - input_dev = input_allocate_device(); - if (!input_dev) { - error = -ENOMEM; - goto fail1; - } - - input_dev->name = wacom_wac->name; - input_dev->dev.parent = &intf->dev; - input_dev->open = wacom_open; - input_dev->close = wacom_close; - usb_to_input_id(dev, &input_dev->id); - input_set_drvdata(input_dev, wacom); - - wacom_wac->input = input_dev; - error = wacom_setup_input_capabilities(input_dev, wacom_wac); - if (error) - goto fail1; - - error = input_register_device(input_dev); - if (error) - goto fail2; - - return 0; - -fail2: - input_free_device(input_dev); - wacom_wac->input = NULL; -fail1: - return error; -} - -static void wacom_wireless_work(struct work_struct *work) -{ - struct wacom *wacom = container_of(work, struct wacom, work); - struct usb_device *usbdev = wacom->usbdev; - struct wacom_wac *wacom_wac = &wacom->wacom_wac; - struct wacom *wacom1, *wacom2; - struct wacom_wac *wacom_wac1, *wacom_wac2; - int error; - - /* - * Regardless if this is a disconnect or a new tablet, - * remove any existing input and battery devices. - */ - - wacom_destroy_battery(wacom); - - /* Stylus interface */ - wacom1 = usb_get_intfdata(usbdev->config->interface[1]); - wacom_wac1 = &(wacom1->wacom_wac); - if (wacom_wac1->input) - input_unregister_device(wacom_wac1->input); - wacom_wac1->input = NULL; - - /* Touch interface */ - wacom2 = usb_get_intfdata(usbdev->config->interface[2]); - wacom_wac2 = &(wacom2->wacom_wac); - if (wacom_wac2->input) - input_unregister_device(wacom_wac2->input); - wacom_wac2->input = NULL; - - if (wacom_wac->pid == 0) { - dev_info(&wacom->intf->dev, "wireless tablet disconnected\n"); - } else { - const struct usb_device_id *id = wacom_ids; - - dev_info(&wacom->intf->dev, - "wireless tablet connected with PID %x\n", - wacom_wac->pid); - - while (id->match_flags) { - if (id->idVendor == USB_VENDOR_ID_WACOM && - id->idProduct == wacom_wac->pid) - break; - id++; - } - - if (!id->match_flags) { - dev_info(&wacom->intf->dev, - "ignoring unknown PID.\n"); - return; - } - - /* Stylus interface */ - wacom_wac1->features = - *((struct wacom_features *)id->driver_info); - wacom_wac1->features.device_type = BTN_TOOL_PEN; - snprintf(wacom_wac1->name, WACOM_NAME_MAX, "%s (WL) Pen", - wacom_wac1->features.name); - wacom_wac1->shared->touch_max = wacom_wac1->features.touch_max; - wacom_wac1->shared->type = wacom_wac1->features.type; - error = wacom_register_input(wacom1); - if (error) - goto fail; - - /* Touch interface */ - if (wacom_wac1->features.touch_max || - wacom_wac1->features.type == INTUOSHT) { - wacom_wac2->features = - *((struct wacom_features *)id->driver_info); - wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3; - wacom_wac2->features.device_type = BTN_TOOL_FINGER; - wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096; - if (wacom_wac2->features.touch_max) - snprintf(wacom_wac2->name, WACOM_NAME_MAX, - "%s (WL) Finger",wacom_wac2->features.name); - else - snprintf(wacom_wac2->name, WACOM_NAME_MAX, - "%s (WL) Pad",wacom_wac2->features.name); - error = wacom_register_input(wacom2); - if (error) - goto fail; - - if (wacom_wac1->features.type == INTUOSHT && - wacom_wac1->features.touch_max) - wacom_wac->shared->touch_input = wacom_wac2->input; - } - - error = wacom_initialize_battery(wacom); - if (error) - goto fail; - } - - return; - -fail: - if (wacom_wac2->input) { - input_unregister_device(wacom_wac2->input); - wacom_wac2->input = NULL; - } - - if (wacom_wac1->input) { - input_unregister_device(wacom_wac1->input); - wacom_wac1->input = NULL; - } - return; -} - -/* - * Not all devices report physical dimensions from HID. - * Compute the default from hardcoded logical dimension - * and resolution before driver overwrites them. - */ -static void wacom_set_default_phy(struct wacom_features *features) -{ - if (features->x_resolution) { - features->x_phy = (features->x_max * 100) / - features->x_resolution; - features->y_phy = (features->y_max * 100) / - features->y_resolution; - } -} - -static void wacom_calculate_res(struct wacom_features *features) -{ - features->x_resolution = wacom_calc_hid_res(features->x_max, - features->x_phy, - features->unit, - features->unitExpo); - features->y_resolution = wacom_calc_hid_res(features->y_max, - features->y_phy, - features->unit, - features->unitExpo); -} - -static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id) -{ - struct usb_device *dev = interface_to_usbdev(intf); - struct usb_endpoint_descriptor *endpoint; - struct wacom *wacom; - struct wacom_wac *wacom_wac; - struct wacom_features *features; - int error; - - if (!id->driver_info) - return -EINVAL; - - wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); - if (!wacom) - return -ENOMEM; - - wacom_wac = &wacom->wacom_wac; - wacom_wac->features = *((struct wacom_features *)id->driver_info); - features = &wacom_wac->features; - if (features->pktlen > WACOM_PKGLEN_MAX) { - error = -EINVAL; - goto fail1; - } - - wacom_wac->data = usb_alloc_coherent(dev, WACOM_PKGLEN_MAX, - GFP_KERNEL, &wacom->data_dma); - if (!wacom_wac->data) { - error = -ENOMEM; - goto fail1; - } - - wacom->irq = usb_alloc_urb(0, GFP_KERNEL); - if (!wacom->irq) { - error = -ENOMEM; - goto fail2; - } - - wacom->usbdev = dev; - wacom->intf = intf; - mutex_init(&wacom->lock); - INIT_WORK(&wacom->work, wacom_wireless_work); - usb_make_path(dev, wacom->phys, sizeof(wacom->phys)); - strlcat(wacom->phys, "/input0", sizeof(wacom->phys)); - - endpoint = &intf->cur_altsetting->endpoint[0].desc; - - /* set the default size in case we do not get them from hid */ - wacom_set_default_phy(features); - - /* Retrieve the physical and logical size for touch devices */ - error = wacom_retrieve_hid_descriptor(intf, features); - if (error) - goto fail3; - - /* - * Intuos5 has no useful data about its touch interface in its - * HID descriptor. If this is the touch interface (wMaxPacketSize - * of WACOM_PKGLEN_BBTOUCH3), override the table values. - */ - if (features->type >= INTUOS5S && features->type <= INTUOSHT) { - if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) { - features->device_type = BTN_TOOL_FINGER; - features->pktlen = WACOM_PKGLEN_BBTOUCH3; - - features->x_max = 4096; - features->y_max = 4096; - } else { - features->device_type = BTN_TOOL_PEN; - } - } - - wacom_setup_device_quirks(features); - - /* set unit to "100th of a mm" for devices not reported by HID */ - if (!features->unit) { - features->unit = 0x11; - features->unitExpo = 16 - 3; - } - wacom_calculate_res(features); - - strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name)); - - if (features->quirks & WACOM_QUIRK_MULTI_INPUT) { - struct usb_device *other_dev; - - /* Append the device type to the name */ - if (features->device_type != BTN_TOOL_FINGER) - strlcat(wacom_wac->name, " Pen", WACOM_NAME_MAX); - else if (features->touch_max) - strlcat(wacom_wac->name, " Finger", WACOM_NAME_MAX); - else - strlcat(wacom_wac->name, " Pad", WACOM_NAME_MAX); - - other_dev = wacom_get_sibling(dev, features->oVid, features->oPid); - if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL) - other_dev = dev; - error = wacom_add_shared_data(wacom_wac, other_dev); - if (error) - goto fail3; - } - - usb_fill_int_urb(wacom->irq, dev, - usb_rcvintpipe(dev, endpoint->bEndpointAddress), - wacom_wac->data, features->pktlen, - wacom_sys_irq, wacom, endpoint->bInterval); - wacom->irq->transfer_dma = wacom->data_dma; - wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; - - error = wacom_initialize_leds(wacom); - if (error) - goto fail4; - - if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) { - error = wacom_register_input(wacom); - if (error) - goto fail5; - } - - /* Note that if query fails it is not a hard failure */ - wacom_query_tablet_data(intf, features); - - usb_set_intfdata(intf, wacom); - - if (features->quirks & WACOM_QUIRK_MONITOR) { - if (usb_submit_urb(wacom->irq, GFP_KERNEL)) { - error = -EIO; - goto fail5; - } - } - - if (wacom_wac->features.type == INTUOSHT && wacom_wac->features.touch_max) { - if (wacom_wac->features.device_type == BTN_TOOL_FINGER) - wacom_wac->shared->touch_input = wacom_wac->input; - } - - return 0; - - fail5: wacom_destroy_leds(wacom); - fail4: wacom_remove_shared_data(wacom_wac); - fail3: usb_free_urb(wacom->irq); - fail2: usb_free_coherent(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma); - fail1: kfree(wacom); - return error; -} - -static void wacom_disconnect(struct usb_interface *intf) -{ - struct wacom *wacom = usb_get_intfdata(intf); - - usb_set_intfdata(intf, NULL); - - usb_kill_urb(wacom->irq); - cancel_work_sync(&wacom->work); - if (wacom->wacom_wac.input) - input_unregister_device(wacom->wacom_wac.input); - wacom_destroy_battery(wacom); - wacom_destroy_leds(wacom); - usb_free_urb(wacom->irq); - usb_free_coherent(interface_to_usbdev(intf), WACOM_PKGLEN_MAX, - wacom->wacom_wac.data, wacom->data_dma); - wacom_remove_shared_data(&wacom->wacom_wac); - kfree(wacom); -} - -static int wacom_suspend(struct usb_interface *intf, pm_message_t message) -{ - struct wacom *wacom = usb_get_intfdata(intf); - - mutex_lock(&wacom->lock); - usb_kill_urb(wacom->irq); - mutex_unlock(&wacom->lock); - - return 0; -} - -static int wacom_resume(struct usb_interface *intf) -{ - struct wacom *wacom = usb_get_intfdata(intf); - struct wacom_features *features = &wacom->wacom_wac.features; - int rv = 0; - - mutex_lock(&wacom->lock); - - /* switch to wacom mode first */ - wacom_query_tablet_data(intf, features); - wacom_led_control(wacom); - - if ((wacom->open || (features->quirks & WACOM_QUIRK_MONITOR)) && - usb_submit_urb(wacom->irq, GFP_NOIO) < 0) - rv = -EIO; - - mutex_unlock(&wacom->lock); - - return rv; -} - -static int wacom_reset_resume(struct usb_interface *intf) -{ - return wacom_resume(intf); -} - -static struct usb_driver wacom_driver = { - .name = "wacom", - .id_table = wacom_ids, - .probe = wacom_probe, - .disconnect = wacom_disconnect, - .suspend = wacom_suspend, - .resume = wacom_resume, - .reset_resume = wacom_reset_resume, - .supports_autosuspend = 1, -}; - -module_usb_driver(wacom_driver); |
