Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
[powerpc.git] / drivers / usb / input / hid-core.c
index e0fd116..0811c39 100644 (file)
@@ -270,7 +270,7 @@ static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsign
  * Read data value from item.
  */
 
-static __inline__ __u32 item_udata(struct hid_item *item)
+static u32 item_udata(struct hid_item *item)
 {
        switch (item->size) {
                case 1: return item->data.u8;
@@ -280,7 +280,7 @@ static __inline__ __u32 item_udata(struct hid_item *item)
        return 0;
 }
 
-static __inline__ __s32 item_sdata(struct hid_item *item)
+static s32 item_sdata(struct hid_item *item)
 {
        switch (item->size) {
                case 1: return item->data.s8;
@@ -727,7 +727,7 @@ static struct hid_device *hid_parse_report(__u8 *start, unsigned size)
  * done by hand.
  */
 
-static __inline__ __s32 snto32(__u32 value, unsigned n)
+static s32 snto32(__u32 value, unsigned n)
 {
        switch (n) {
                case 8:  return ((__s8)value);
@@ -741,30 +741,65 @@ static __inline__ __s32 snto32(__u32 value, unsigned n)
  * Convert a signed 32-bit integer to a signed n-bit integer.
  */
 
-static __inline__ __u32 s32ton(__s32 value, unsigned n)
+static u32 s32ton(__s32 value, unsigned n)
 {
-       __s32 a = value >> (n - 1);
+       s32 a = value >> (n - 1);
        if (a && a != -1)
                return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
        return value & ((1 << n) - 1);
 }
 
 /*
- * Extract/implement a data field from/to a report.
+ * Extract/implement a data field from/to a little endian report (bit array).
+ *
+ * Code sort-of follows HID spec:
+ *     http://www.usb.org/developers/devclass_docs/HID1_11.pdf
+ *
+ * While the USB HID spec allows unlimited length bit fields in "report
+ * descriptors", most devices never use more than 16 bits.
+ * One model of UPS is claimed to report "LINEV" as a 32-bit field.
+ * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
  */
 
 static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n)
 {
-       report += (offset >> 5) << 2; offset &= 31;
-       return (le64_to_cpu(get_unaligned((__le64*)report)) >> offset) & ((1ULL << n) - 1);
+       u64 x;
+
+       WARN_ON(n > 32);
+
+       report += offset >> 3;  /* adjust byte index */
+       offset &= 7;            /* now only need bit offset into one byte */
+       x = get_unaligned((u64 *) report);
+       x = le64_to_cpu(x);
+       x = (x >> offset) & ((1ULL << n) - 1);  /* extract bit field */
+       return (u32) x;
 }
 
+/*
+ * "implement" : set bits in a little endian bit stream.
+ * Same concepts as "extract" (see comments above).
+ * The data mangled in the bit stream remains in little endian
+ * order the whole time. It make more sense to talk about
+ * endianness of register values by considering a register
+ * a "cached" copy of the little endiad bit stream.
+ */
 static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value)
 {
-       report += (offset >> 5) << 2; offset &= 31;
-       put_unaligned((get_unaligned((__le64*)report)
-               & cpu_to_le64(~((((__u64) 1 << n) - 1) << offset)))
-               | cpu_to_le64((__u64)value << offset), (__le64*)report);
+       u64 x;
+       u64 m = (1ULL << n) - 1;
+
+       WARN_ON(n > 32);
+
+       WARN_ON(value > m);
+       value &= m;
+
+       report += offset >> 3;
+       offset &= 7;
+
+       x = get_unaligned((u64 *)report);
+       x &= cpu_to_le64(~(m << offset));
+       x |= cpu_to_le64(((u64) value) << offset);
+       put_unaligned(x, (u64 *) report);
 }
 
 /*
@@ -780,13 +815,13 @@ static __inline__ int search(__s32 *array, __s32 value, unsigned n)
        return -1;
 }
 
-static void hid_process_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value, int interrupt, struct pt_regs *regs)
+static void hid_process_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value, int interrupt)
 {
        hid_dump_input(usage, value);
        if (hid->claimed & HID_CLAIMED_INPUT)
-               hidinput_hid_event(hid, field, usage, value, regs);
+               hidinput_hid_event(hid, field, usage, value);
        if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt)
-               hiddev_hid_event(hid, field, usage, value, regs);
+               hiddev_hid_event(hid, field, usage, value);
 }
 
 /*
@@ -795,7 +830,7 @@ static void hid_process_event(struct hid_device *hid, struct hid_field *field, s
  * reporting to the layer).
  */
 
-static void hid_input_field(struct hid_device *hid, struct hid_field *field, __u8 *data, int interrupt, struct pt_regs *regs)
+static void hid_input_field(struct hid_device *hid, struct hid_field *field, __u8 *data, int interrupt)
 {
        unsigned n;
        unsigned count = field->report_count;
@@ -822,19 +857,19 @@ static void hid_input_field(struct hid_device *hid, struct hid_field *field, __u
        for (n = 0; n < count; n++) {
 
                if (HID_MAIN_ITEM_VARIABLE & field->flags) {
-                       hid_process_event(hid, field, &field->usage[n], value[n], interrupt, regs);
+                       hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
                        continue;
                }
 
                if (field->value[n] >= min && field->value[n] <= max
                        && field->usage[field->value[n] - min].hid
                        && search(value, field->value[n], count))
-                               hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt, regs);
+                               hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
 
                if (value[n] >= min && value[n] <= max
                        && field->usage[value[n] - min].hid
                        && search(field->value, value[n], count))
-                               hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt, regs);
+                               hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
        }
 
        memcpy(field->value, value, count * sizeof(__s32));
@@ -842,7 +877,7 @@ exit:
        kfree(value);
 }
 
-static int hid_input_report(int type, struct urb *urb, int interrupt, struct pt_regs *regs)
+static int hid_input_report(int type, struct urb *urb, int interrupt)
 {
        struct hid_device *hid = urb->context;
        struct hid_report_enum *report_enum = hid->report_enum + type;
@@ -892,7 +927,7 @@ static int hid_input_report(int type, struct urb *urb, int interrupt, struct pt_
                hiddev_report_event(hid, report);
 
        for (n = 0; n < report->maxfield; n++)
-               hid_input_field(hid, report->field[n], data, interrupt, regs);
+               hid_input_field(hid, report->field[n], data, interrupt);
 
        if (hid->claimed & HID_CLAIMED_INPUT)
                hidinput_report_event(hid, report);
@@ -933,20 +968,30 @@ static void hid_retry_timeout(unsigned long _hid)
                hid_io_error(hid);
 }
 
-/* Workqueue routine to reset the device */
-static void hid_reset(void *_hid)
+/* Workqueue routine to reset the device or clear a halt */
+static void hid_reset(struct work_struct *work)
 {
-       struct hid_device *hid = (struct hid_device *) _hid;
-       int rc_lock, rc;
-
-       dev_dbg(&hid->intf->dev, "resetting device\n");
-       rc = rc_lock = usb_lock_device_for_reset(hid->dev, hid->intf);
-       if (rc_lock >= 0) {
-               rc = usb_reset_composite_device(hid->dev, hid->intf);
-               if (rc_lock)
-                       usb_unlock_device(hid->dev);
+       struct hid_device *hid =
+               container_of(work, struct hid_device, reset_work);
+       int rc_lock, rc = 0;
+
+       if (test_bit(HID_CLEAR_HALT, &hid->iofl)) {
+               dev_dbg(&hid->intf->dev, "clear halt\n");
+               rc = usb_clear_halt(hid->dev, hid->urbin->pipe);
+               clear_bit(HID_CLEAR_HALT, &hid->iofl);
+               hid_start_in(hid);
+       }
+
+       else if (test_bit(HID_RESET_PENDING, &hid->iofl)) {
+               dev_dbg(&hid->intf->dev, "resetting device\n");
+               rc = rc_lock = usb_lock_device_for_reset(hid->dev, hid->intf);
+               if (rc_lock >= 0) {
+                       rc = usb_reset_composite_device(hid->dev, hid->intf);
+                       if (rc_lock)
+                               usb_unlock_device(hid->dev);
+               }
+               clear_bit(HID_RESET_PENDING, &hid->iofl);
        }
-       clear_bit(HID_RESET_PENDING, &hid->iofl);
 
        switch (rc) {
        case 0:
@@ -988,9 +1033,8 @@ static void hid_io_error(struct hid_device *hid)
 
                /* Retries failed, so do a port reset */
                if (!test_and_set_bit(HID_RESET_PENDING, &hid->iofl)) {
-                       if (schedule_work(&hid->reset_work))
-                               goto done;
-                       clear_bit(HID_RESET_PENDING, &hid->iofl);
+                       schedule_work(&hid->reset_work);
+                       goto done;
                }
        }
 
@@ -1004,7 +1048,7 @@ done:
  * Input interrupt completion handler.
  */
 
-static void hid_irq_in(struct urb *urb, struct pt_regs *regs)
+static void hid_irq_in(struct urb *urb)
 {
        struct hid_device       *hid = urb->context;
        int                     status;
@@ -1012,8 +1056,13 @@ static void hid_irq_in(struct urb *urb, struct pt_regs *regs)
        switch (urb->status) {
                case 0:                 /* success */
                        hid->retry_delay = 0;
-                       hid_input_report(HID_INPUT_REPORT, urb, 1, regs);
+                       hid_input_report(HID_INPUT_REPORT, urb, 1);
                        break;
+               case -EPIPE:            /* stall */
+                       clear_bit(HID_IN_RUNNING, &hid->iofl);
+                       set_bit(HID_CLEAR_HALT, &hid->iofl);
+                       schedule_work(&hid->reset_work);
+                       return;
                case -ECONNRESET:       /* unlink */
                case -ENOENT:
                case -ESHUTDOWN:        /* unplug */
@@ -1030,7 +1079,7 @@ static void hid_irq_in(struct urb *urb, struct pt_regs *regs)
                        warn("input irq status %d received", urb->status);
        }
 
-       status = usb_submit_urb(urb, SLAB_ATOMIC);
+       status = usb_submit_urb(urb, GFP_ATOMIC);
        if (status) {
                clear_bit(HID_IN_RUNNING, &hid->iofl);
                if (status != -EPERM) {
@@ -1193,7 +1242,7 @@ static int hid_submit_ctrl(struct hid_device *hid)
  * Output interrupt completion handler.
  */
 
-static void hid_irq_out(struct urb *urb, struct pt_regs *regs)
+static void hid_irq_out(struct urb *urb)
 {
        struct hid_device *hid = urb->context;
        unsigned long flags;
@@ -1238,7 +1287,7 @@ static void hid_irq_out(struct urb *urb, struct pt_regs *regs)
  * Control pipe completion handler.
  */
 
-static void hid_ctrl(struct urb *urb, struct pt_regs *regs)
+static void hid_ctrl(struct urb *urb)
 {
        struct hid_device *hid = urb->context;
        unsigned long flags;
@@ -1249,7 +1298,7 @@ static void hid_ctrl(struct urb *urb, struct pt_regs *regs)
        switch (urb->status) {
                case 0:                 /* success */
                        if (hid->ctrl[hid->ctrltail].dir == USB_DIR_IN)
-                               hid_input_report(hid->ctrl[hid->ctrltail].report->type, urb, 0, regs);
+                               hid_input_report(hid->ctrl[hid->ctrltail].report->type, urb, 0);
                        break;
                case -ESHUTDOWN:        /* unplug */
                        unplug = 1;
@@ -1381,6 +1430,9 @@ void hid_close(struct hid_device *hid)
 
 #define USB_VENDOR_ID_PANJIT           0x134c
 
+#define USB_VENDOR_ID_TURBOX           0x062a
+#define USB_DEVICE_ID_TURBOX_KEYBOARD  0x0201
+
 /*
  * Initialize all reports
  */
@@ -1589,6 +1641,19 @@ void hid_init_reports(struct hid_device *hid)
 
 #define USB_VENDOR_ID_APPLE            0x05ac
 #define USB_DEVICE_ID_APPLE_MIGHTYMOUSE        0x0304
+#define USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI      0x020e
+#define USB_DEVICE_ID_APPLE_FOUNTAIN_ISO       0x020f
+#define USB_DEVICE_ID_APPLE_GEYSER_ANSI        0x0214
+#define USB_DEVICE_ID_APPLE_GEYSER_ISO 0x0215
+#define USB_DEVICE_ID_APPLE_GEYSER_JIS 0x0216
+#define USB_DEVICE_ID_APPLE_GEYSER3_ANSI       0x0217
+#define USB_DEVICE_ID_APPLE_GEYSER3_ISO        0x0218
+#define USB_DEVICE_ID_APPLE_GEYSER3_JIS        0x0219
+#define USB_DEVICE_ID_APPLE_GEYSER4_ANSI       0x021a
+#define USB_DEVICE_ID_APPLE_GEYSER4_ISO        0x021b
+#define USB_DEVICE_ID_APPLE_GEYSER4_JIS        0x021c
+#define USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY   0x030a
+#define USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY    0x030b
 
 #define USB_VENDOR_ID_CHERRY           0x046a
 #define USB_DEVICE_ID_CHERRY_CYMOTION  0x0023
@@ -1602,6 +1667,12 @@ void hid_init_reports(struct hid_device *hid)
 #define USB_VENDOR_ID_SUN              0x0430
 #define USB_DEVICE_ID_RARITAN_KVM_DONGLE       0xcdab
 
+#define USB_VENDOR_ID_AIRCABLE         0x16CA
+#define USB_DEVICE_ID_AIRCABLE1                0x1502
+
+#define USB_VENDOR_ID_LOGITECH         0x046d
+#define USB_DEVICE_ID_LOGITECH_USB_RECEIVER    0xc101
+
 /*
  * Alphabetically sorted blacklist by quirk type.
  */
@@ -1619,6 +1690,7 @@ static const struct hid_blacklist {
        { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22, HID_QUIRK_IGNORE },
        { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23, HID_QUIRK_IGNORE },
        { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24, HID_QUIRK_IGNORE },
+       { USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1, HID_QUIRK_IGNORE },
        { USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232, HID_QUIRK_IGNORE },
        { USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD, HID_QUIRK_IGNORE },
        { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW40, HID_QUIRK_IGNORE },
@@ -1752,22 +1824,29 @@ static const struct hid_blacklist {
 
        { USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION, HID_QUIRK_CYMOTION },
 
-       { USB_VENDOR_ID_APPLE, 0x020E, HID_QUIRK_POWERBOOK_HAS_FN },
-       { USB_VENDOR_ID_APPLE, 0x020F, HID_QUIRK_POWERBOOK_HAS_FN },
-       { USB_VENDOR_ID_APPLE, 0x0214, HID_QUIRK_POWERBOOK_HAS_FN },
-       { USB_VENDOR_ID_APPLE, 0x0215, HID_QUIRK_POWERBOOK_HAS_FN },
-       { USB_VENDOR_ID_APPLE, 0x0216, HID_QUIRK_POWERBOOK_HAS_FN },
-       { USB_VENDOR_ID_APPLE, 0x0217, HID_QUIRK_POWERBOOK_HAS_FN },
-       { USB_VENDOR_ID_APPLE, 0x0218, HID_QUIRK_POWERBOOK_HAS_FN },
-       { USB_VENDOR_ID_APPLE, 0x0219, HID_QUIRK_POWERBOOK_HAS_FN },
-       { USB_VENDOR_ID_APPLE, 0x030A, HID_QUIRK_POWERBOOK_HAS_FN },
-       { USB_VENDOR_ID_APPLE, 0x030B, HID_QUIRK_POWERBOOK_HAS_FN },
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI, HID_QUIRK_POWERBOOK_HAS_FN },
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO, HID_QUIRK_POWERBOOK_HAS_FN },
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI, HID_QUIRK_POWERBOOK_HAS_FN },
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_POWERBOOK_ISO_KEYBOARD},
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS, HID_QUIRK_POWERBOOK_HAS_FN },
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI, HID_QUIRK_POWERBOOK_HAS_FN },
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_POWERBOOK_ISO_KEYBOARD},
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS, HID_QUIRK_POWERBOOK_HAS_FN },
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI, HID_QUIRK_POWERBOOK_HAS_FN },
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO, HID_QUIRK_POWERBOOK_HAS_FN },
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS, HID_QUIRK_POWERBOOK_HAS_FN },
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY, HID_QUIRK_POWERBOOK_HAS_FN },
+       { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY, HID_QUIRK_POWERBOOK_HAS_FN },
 
        { USB_VENDOR_ID_PANJIT, 0x0001, HID_QUIRK_IGNORE },
        { USB_VENDOR_ID_PANJIT, 0x0002, HID_QUIRK_IGNORE },
        { USB_VENDOR_ID_PANJIT, 0x0003, HID_QUIRK_IGNORE },
        { USB_VENDOR_ID_PANJIT, 0x0004, HID_QUIRK_IGNORE },
 
+       { USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET },
+
+       { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_USB_RECEIVER, HID_QUIRK_BAD_RELATIVE_KEYS },
+
        { 0, 0 }
 };
 
@@ -1790,13 +1869,13 @@ static void hid_find_max_report(struct hid_device *hid, unsigned int type, int *
 
 static int hid_alloc_buffers(struct usb_device *dev, struct hid_device *hid)
 {
-       if (!(hid->inbuf = usb_buffer_alloc(dev, hid->bufsize, SLAB_ATOMIC, &hid->inbuf_dma)))
+       if (!(hid->inbuf = usb_buffer_alloc(dev, hid->bufsize, GFP_ATOMIC, &hid->inbuf_dma)))
                return -1;
-       if (!(hid->outbuf = usb_buffer_alloc(dev, hid->bufsize, SLAB_ATOMIC, &hid->outbuf_dma)))
+       if (!(hid->outbuf = usb_buffer_alloc(dev, hid->bufsize, GFP_ATOMIC, &hid->outbuf_dma)))
                return -1;
-       if (!(hid->cr = usb_buffer_alloc(dev, sizeof(*(hid->cr)), SLAB_ATOMIC, &hid->cr_dma)))
+       if (!(hid->cr = usb_buffer_alloc(dev, sizeof(*(hid->cr)), GFP_ATOMIC, &hid->cr_dma)))
                return -1;
-       if (!(hid->ctrlbuf = usb_buffer_alloc(dev, hid->bufsize, SLAB_ATOMIC, &hid->ctrlbuf_dma)))
+       if (!(hid->ctrlbuf = usb_buffer_alloc(dev, hid->bufsize, GFP_ATOMIC, &hid->ctrlbuf_dma)))
                return -1;
 
        return 0;
@@ -1940,7 +2019,7 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf)
                if (hid->collection->usage == HID_GD_MOUSE && hid_mousepoll_interval > 0)
                        interval = hid_mousepoll_interval;
 
-               if (endpoint->bEndpointAddress & USB_DIR_IN) {
+               if (usb_endpoint_dir_in(endpoint)) {
                        if (hid->urbin)
                                continue;
                        if (!(hid->urbin = usb_alloc_urb(0, GFP_KERNEL)))
@@ -1970,7 +2049,7 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf)
 
        init_waitqueue_head(&hid->wait);
 
-       INIT_WORK(&hid->reset_work, hid_reset, hid);
+       INIT_WORK(&hid->reset_work, hid_reset);
        setup_timer(&hid->io_retry, hid_retry_timeout, (unsigned long) hid);
 
        spin_lock_init(&hid->inlock);
@@ -2022,13 +2101,9 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf)
        return hid;
 
 fail:
-
-       if (hid->urbin)
-               usb_free_urb(hid->urbin);
-       if (hid->urbout)
-               usb_free_urb(hid->urbout);
-       if (hid->urbctrl)
-               usb_free_urb(hid->urbctrl);
+       usb_free_urb(hid->urbin);
+       usb_free_urb(hid->urbout);
+       usb_free_urb(hid->urbctrl);
        hid_free_buffers(dev, hid);
        hid_free_device(hid);
 
@@ -2059,8 +2134,7 @@ static void hid_disconnect(struct usb_interface *intf)
 
        usb_free_urb(hid->urbin);
        usb_free_urb(hid->urbctrl);
-       if (hid->urbout)
-               usb_free_urb(hid->urbout);
+       usb_free_urb(hid->urbout);
 
        hid_free_buffers(hid->dev, hid);
        hid_free_device(hid);