diff options
Diffstat (limited to 'drivers/hid/hid-kye.c')
| -rw-r--r-- | drivers/hid/hid-kye.c | 75 |
1 files changed, 44 insertions, 31 deletions
diff --git a/drivers/hid/hid-kye.c b/drivers/hid/hid-kye.c index eb9bf28299..70ceb94373 100644 --- a/drivers/hid/hid-kye.c +++ b/drivers/hid/hid-kye.c @@ -209,7 +209,7 @@ static const __u8 pensketch_t609a_control_rdesc[] = { 0xC0 /* End Collection */ }; -/* Fix indexes in kye_tablet_fixup if you change this */ +/* Fix indexes in kye_tablet_fixup() if you change this */ static const __u8 kye_tablet_rdesc[] = { 0x06, 0x00, 0xFF, /* Usage Page (FF00h), */ 0x09, 0x01, /* Usage (01h), */ @@ -262,12 +262,16 @@ static const __u8 kye_tablet_rdesc[] = { 0x27, 0xFF, 0x07, 0x00, 0x00, /* Logical Maximum (2047), */ 0x81, 0x02, /* Input (Variable), */ 0xC0, /* End Collection, */ - 0xC0, /* End Collection, */ - 0x05, 0x0D, /* Usage Page (Digitizer), */ - 0x09, 0x21, /* Usage (Puck), */ + 0xC0 /* End Collection, */ +}; + +/* Fix indexes in kye_tablet_fixup() if you change this */ +static const __u8 kye_tablet_mouse_rdesc[] = { + 0x05, 0x01, /* Usage Page (Desktop), */ + 0x09, 0x02, /* Usage (Mouse), */ 0xA1, 0x01, /* Collection (Application), */ 0x85, 0x11, /* Report ID (17), */ - 0x09, 0x21, /* Usage (Puck), */ + 0x09, 0x01, /* Usage (Pointer), */ 0xA0, /* Collection (Physical), */ 0x05, 0x09, /* Usage Page (Button), */ 0x19, 0x01, /* Usage Minimum (01h), */ @@ -280,7 +284,7 @@ static const __u8 kye_tablet_rdesc[] = { 0x95, 0x04, /* Report Count (4), */ 0x81, 0x01, /* Input (Constant), */ 0x05, 0x0D, /* Usage Page (Digitizer), */ - 0x09, 0x32, /* Usage (In Range), */ + 0x09, 0x37, /* Usage (Data Valid), */ 0x95, 0x01, /* Report Count (1), */ 0x81, 0x02, /* Input (Variable), */ 0x05, 0x01, /* Usage Page (Desktop), */ @@ -317,7 +321,7 @@ static const struct kye_tablet_info { __s32 y_physical_maximum; __s8 unit_exponent; __s8 unit; - bool has_punk; + bool has_mouse; unsigned int control_rsize; const __u8 *control_rdesc; } kye_tablets_info[] = { @@ -402,7 +406,7 @@ static __u8 *kye_consumer_control_fixup(struct hid_device *hdev, __u8 *rdesc, static __u8 *kye_tablet_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize) { const struct kye_tablet_info *info; - unsigned int newsize; + __u8 *newdesc = rdesc; if (*rsize < sizeof(kye_tablet_rdesc)) { hid_warn(hdev, @@ -420,36 +424,45 @@ static __u8 *kye_tablet_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int return rdesc; } - newsize = info->has_punk ? sizeof(kye_tablet_rdesc) : 112; - memcpy(rdesc, kye_tablet_rdesc, newsize); - - put_unaligned_le32(info->x_logical_maximum, rdesc + 66); - put_unaligned_le32(info->x_physical_maximum, rdesc + 72); - rdesc[77] = info->unit; - rdesc[79] = info->unit_exponent; - put_unaligned_le32(info->y_logical_maximum, rdesc + 87); - put_unaligned_le32(info->y_physical_maximum, rdesc + 92); - put_unaligned_le32(info->pressure_logical_maximum, rdesc + 104); - - if (info->has_punk) { - put_unaligned_le32(info->x_logical_maximum, rdesc + 156); - put_unaligned_le32(info->x_physical_maximum, rdesc + 162); - rdesc[167] = info->unit; - rdesc[169] = info->unit_exponent; - put_unaligned_le32(info->y_logical_maximum, rdesc + 177); - put_unaligned_le32(info->y_physical_maximum, rdesc + 182); + memcpy(newdesc, kye_tablet_rdesc, sizeof(kye_tablet_rdesc)); + + put_unaligned_le32(info->x_logical_maximum, newdesc + 66); + put_unaligned_le32(info->x_physical_maximum, newdesc + 72); + newdesc[77] = info->unit; + newdesc[79] = info->unit_exponent; + put_unaligned_le32(info->y_logical_maximum, newdesc + 87); + put_unaligned_le32(info->y_physical_maximum, newdesc + 92); + put_unaligned_le32(info->pressure_logical_maximum, newdesc + 104); + + newdesc += sizeof(kye_tablet_rdesc); + + if (info->has_mouse) { + if (newdesc + sizeof(kye_tablet_mouse_rdesc) > rdesc + *rsize) + hid_err(hdev, "control desc unexpectedly large\n"); + else { + memcpy(newdesc, kye_tablet_mouse_rdesc, sizeof(kye_tablet_mouse_rdesc)); + + put_unaligned_le32(info->x_logical_maximum, newdesc + 44); + put_unaligned_le32(info->x_physical_maximum, newdesc + 50); + newdesc[55] = info->unit; + newdesc[57] = info->unit_exponent; + put_unaligned_le32(info->y_logical_maximum, newdesc + 65); + put_unaligned_le32(info->y_physical_maximum, newdesc + 70); + + newdesc += sizeof(kye_tablet_mouse_rdesc); + } } if (info->control_rsize) { - if (newsize + info->control_rsize > *rsize) - hid_err(hdev, "control rdesc unexpectedly large"); + if (newdesc + info->control_rsize > rdesc + *rsize) + hid_err(hdev, "control desc unexpectedly large\n"); else { - memcpy(rdesc + newsize, info->control_rdesc, info->control_rsize); - newsize += info->control_rsize; + memcpy(newdesc, info->control_rdesc, info->control_rsize); + newdesc += info->control_rsize; } } - *rsize = newsize; + *rsize = newdesc - rdesc; return rdesc; } |