From: Dmitry Torokhov Date: Sat, 20 Mar 2010 05:33:38 +0000 (-0700) Subject: Input: wacom - use get_unaligned to access unaligned data X-Git-Url: https://rtime.felk.cvut.cz/gitweb/lisovros/linux_canprio.git/commitdiff_plain/252f77698fe37bdd784e514820852a3ea9827fd0 Input: wacom - use get_unaligned to access unaligned data Also get rid of wacom_le16_to_cpu() and wacom_be16_to_cpu() helpers and ise le16_to_cpup() and be16_to_cpup() directly. Signed-off-by: Dmitry Torokhov --- diff --git a/drivers/input/tablet/wacom.h b/drivers/input/tablet/wacom.h index 56a37074e0d..284dfaab6b8 100644 --- a/drivers/input/tablet/wacom.h +++ b/drivers/input/tablet/wacom.h @@ -120,7 +120,4 @@ extern const struct usb_device_id wacom_ids[]; void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len); void wacom_setup_input_capabilities(struct input_dev *input_dev, struct wacom_wac *wacom_wac); -__u16 wacom_le16_to_cpu(unsigned char *data); -__u16 wacom_be16_to_cpu(unsigned char *data); - #endif diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c index c37e22b968d..d90f4e00e51 100644 --- a/drivers/input/tablet/wacom_sys.c +++ b/drivers/input/tablet/wacom_sys.c @@ -100,20 +100,6 @@ static void wacom_sys_irq(struct urb *urb) __func__, retval); } -__u16 wacom_be16_to_cpu(unsigned char *data) -{ - __u16 value; - value = be16_to_cpu(*(__be16 *) data); - return value; -} - -__u16 wacom_le16_to_cpu(unsigned char *data) -{ - __u16 value; - value = le16_to_cpu(*(__le16 *) data); - return value; -} - static int wacom_open(struct input_dev *dev) { struct wacom *wacom = input_get_drvdata(dev); @@ -210,9 +196,9 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi features->device_type = BTN_TOOL_TRIPLETAP; } features->x_max = - wacom_le16_to_cpu(&report[i + 3]); + get_unaligned_le16(&report[i + 3]); features->x_phy = - wacom_le16_to_cpu(&report[i + 6]); + get_unaligned_le16(&report[i + 6]); features->unit = report[i + 9]; features->unitExpo = report[i + 11]; i += 12; @@ -222,7 +208,7 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi features->pktlen = WACOM_PKGLEN_GRAPHIRE; features->device_type = BTN_TOOL_PEN; features->x_max = - wacom_le16_to_cpu(&report[i + 3]); + get_unaligned_le16(&report[i + 3]); i += 4; } } else if (usage == WCM_DIGITIZER) { @@ -244,15 +230,15 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi features->pktlen = WACOM_PKGLEN_TPC2FG; features->device_type = BTN_TOOL_TRIPLETAP; features->y_max = - wacom_le16_to_cpu(&report[i + 3]); + get_unaligned_le16(&report[i + 3]); features->y_phy = - wacom_le16_to_cpu(&report[i + 6]); + get_unaligned_le16(&report[i + 6]); i += 7; } else { features->y_max = features->x_max; features->y_phy = - wacom_le16_to_cpu(&report[i + 3]); + get_unaligned_le16(&report[i + 3]); i += 4; } } else if (pen) { @@ -261,7 +247,7 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi features->pktlen = WACOM_PKGLEN_GRAPHIRE; features->device_type = BTN_TOOL_PEN; features->y_max = - wacom_le16_to_cpu(&report[i + 3]); + get_unaligned_le16(&report[i + 3]); i += 4; } } @@ -280,7 +266,7 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi case HID_USAGE_UNDEFINED: if (usage == WCM_DESKTOP && finger) /* capacity */ features->pressure_max = - wacom_le16_to_cpu(&report[i + 3]); + get_unaligned_le16(&report[i + 3]); i += 4; break; } diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index 8163e8f06f2..950a81d7a67 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -27,8 +27,8 @@ static int wacom_penpartner_irq(struct wacom_wac *wacom) wacom->id[0] = (data[5] & 0x20) ? ERASER_DEVICE_ID : STYLUS_DEVICE_ID; input_report_key(input, wacom->tool[0], 1); input_report_abs(input, ABS_MISC, wacom->id[0]); /* report tool id */ - input_report_abs(input, ABS_X, wacom_le16_to_cpu(&data[1])); - input_report_abs(input, ABS_Y, wacom_le16_to_cpu(&data[3])); + input_report_abs(input, ABS_X, get_unaligned_le16(&data[1])); + input_report_abs(input, ABS_Y, get_unaligned_le16(&data[3])); input_report_abs(input, ABS_PRESSURE, (signed char)data[6] + 127); input_report_key(input, BTN_TOUCH, ((signed char)data[6] > -127)); input_report_key(input, BTN_STYLUS, (data[5] & 0x40)); @@ -43,8 +43,8 @@ static int wacom_penpartner_irq(struct wacom_wac *wacom) case 2: input_report_key(input, BTN_TOOL_PEN, 1); input_report_abs(input, ABS_MISC, STYLUS_DEVICE_ID); /* report tool id */ - input_report_abs(input, ABS_X, wacom_le16_to_cpu(&data[1])); - input_report_abs(input, ABS_Y, wacom_le16_to_cpu(&data[3])); + input_report_abs(input, ABS_X, get_unaligned_le16(&data[1])); + input_report_abs(input, ABS_Y, get_unaligned_le16(&data[3])); input_report_abs(input, ABS_PRESSURE, (signed char)data[6] + 127); input_report_key(input, BTN_TOUCH, ((signed char)data[6] > -80) && !(data[5] & 0x20)); input_report_key(input, BTN_STYLUS, (data[5] & 0x40)); @@ -150,9 +150,9 @@ static int wacom_ptu_irq(struct wacom_wac *wacom) wacom->id[0] = STYLUS_DEVICE_ID; } input_report_abs(input, ABS_MISC, wacom->id[0]); /* report tool id */ - input_report_abs(input, ABS_X, wacom_le16_to_cpu(&data[2])); - input_report_abs(input, ABS_Y, wacom_le16_to_cpu(&data[4])); - input_report_abs(input, ABS_PRESSURE, wacom_le16_to_cpu(&data[6])); + input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2])); + input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4])); + input_report_abs(input, ABS_PRESSURE, le16_to_cpup((__le16 *)&data[6])); input_report_key(input, BTN_STYLUS, data[1] & 0x02); input_report_key(input, BTN_STYLUS2, data[1] & 0x10); return 1; @@ -163,7 +163,7 @@ static int wacom_graphire_irq(struct wacom_wac *wacom) struct wacom_features *features = &wacom->features; unsigned char *data = wacom->data; struct input_dev *input = wacom->input; - int x, y, prox; + int prox; int rw = 0; int retval = 0; @@ -197,10 +197,8 @@ static int wacom_graphire_irq(struct wacom_wac *wacom) break; } } - x = wacom_le16_to_cpu(&data[2]); - y = wacom_le16_to_cpu(&data[4]); - input_report_abs(input, ABS_X, x); - input_report_abs(input, ABS_Y, y); + input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2])); + input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4])); if (wacom->tool[0] != BTN_TOOL_MOUSE) { input_report_abs(input, ABS_PRESSURE, data[6] | ((data[7] & 0x01) << 8)); input_report_key(input, BTN_TOUCH, data[1] & 0x01); @@ -531,8 +529,8 @@ static int wacom_intuos_irq(struct wacom_wac *wacom) input_report_abs(input, ABS_Y, (data[4] << 9) | (data[5] << 1) | (data[9] & 1)); input_report_abs(input, ABS_DISTANCE, ((data[9] >> 2) & 0x3f)); } else { - input_report_abs(input, ABS_X, wacom_be16_to_cpu(&data[2])); - input_report_abs(input, ABS_Y, wacom_be16_to_cpu(&data[4])); + input_report_abs(input, ABS_X, be16_to_cpup((__be16 *)&data[2])); + input_report_abs(input, ABS_Y, be16_to_cpup((__be16 *)&data[4])); input_report_abs(input, ABS_DISTANCE, ((data[9] >> 3) & 0x1f)); } @@ -661,10 +659,10 @@ static void wacom_tpc_touch_in(struct wacom_wac *wacom, size_t len) switch (data[0]) { case WACOM_REPORT_TPC1FG: - input_report_abs(input, ABS_X, wacom_le16_to_cpu(&data[2])); - input_report_abs(input, ABS_Y, wacom_le16_to_cpu(&data[4])); - input_report_abs(input, ABS_PRESSURE, wacom_le16_to_cpu(&data[6])); - input_report_key(input, BTN_TOUCH, wacom_le16_to_cpu(&data[6])); + input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2])); + input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4])); + input_report_abs(input, ABS_PRESSURE, le16_to_cpup((__le16 *)&data[6])); + input_report_key(input, BTN_TOUCH, le16_to_cpup((__le16 *)&data[6])); input_report_abs(input, ABS_MISC, wacom->id[0]); input_report_key(input, wacom->tool[0], 1); break; @@ -700,8 +698,8 @@ static void wacom_tpc_touch_in(struct wacom_wac *wacom, size_t len) break; } } else { - input_report_abs(input, ABS_X, wacom_le16_to_cpu(&data[1])); - input_report_abs(input, ABS_Y, wacom_le16_to_cpu(&data[3])); + input_report_abs(input, ABS_X, get_unaligned_le16(&data[1])); + input_report_abs(input, ABS_Y, get_unaligned_le16(&data[3])); input_report_key(input, BTN_TOUCH, 1); input_report_abs(input, ABS_MISC, wacom->id[0]); input_report_key(input, wacom->tool[0], 1); @@ -772,8 +770,8 @@ static int wacom_tpc_irq(struct wacom_wac *wacom, size_t len) } input_report_key(input, BTN_STYLUS, data[1] & 0x02); input_report_key(input, BTN_STYLUS2, data[1] & 0x10); - input_report_abs(input, ABS_X, wacom_le16_to_cpu(&data[2])); - input_report_abs(input, ABS_Y, wacom_le16_to_cpu(&data[4])); + input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2])); + input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4])); pressure = ((data[7] & 0x01) << 8) | data[6]; if (pressure < 0) pressure = features->pressure_max + pressure + 1;