From: Michael Poole Date: Thu, 11 Feb 2010 05:32:57 +0000 (-0500) Subject: HID: magicmouse: coding style and probe failure fixes X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=71b38bd4c1cc4f2b653064357e4efab77dfd711d;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git HID: magicmouse: coding style and probe failure fixes Use proper values to initialize bool configuration variables, tabs rather than spaces, no braces for one-line else clause, __set_bit() when the operation doesn't have to be atomic, input_set_abs_params() rather than writing the fields directly, and call hid_hw_stop() when appropriate to handle failures in the probe. Signed-off-by: Michael Poole Signed-off-by: Jiri Kosina --- diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c index f94b3e43c5b6..4a3a94f2b10c 100644 --- a/drivers/hid/hid-magicmouse.c +++ b/drivers/hid/hid-magicmouse.c @@ -18,22 +18,22 @@ #include "hid-ids.h" -static bool emulate_3button = 1; +static bool emulate_3button = true; module_param(emulate_3button, bool, 0644); MODULE_PARM_DESC(emulate_3button, "Emulate a middle button"); static int middle_button_start = -350; static int middle_button_stop = +350; -static bool emulate_scroll_wheel = 1; +static bool emulate_scroll_wheel = true; module_param(emulate_scroll_wheel, bool, 0644); MODULE_PARM_DESC(emulate_scroll_wheel, "Emulate a scroll wheel"); -static bool report_touches = 1; +static bool report_touches = true; module_param(report_touches, bool, 0644); MODULE_PARM_DESC(report_touches, "Emit touch records (otherwise, only use them for emulation)"); -static bool report_undeciphered = 0; +static bool report_undeciphered; module_param(report_undeciphered, bool, 0644); MODULE_PARM_DESC(report_undeciphered, "Report undeciphered multi-touch state field using a MSC_RAW event"); @@ -108,9 +108,9 @@ static int magicmouse_firm_touch(struct magicmouse_sc *msc) static void magicmouse_emit_buttons(struct magicmouse_sc *msc, int state) { - int last_state = test_bit(BTN_LEFT, msc->input->key) << 0 | - test_bit(BTN_RIGHT, msc->input->key) << 1 | - test_bit(BTN_MIDDLE, msc->input->key) << 2; + int last_state = test_bit(BTN_LEFT, msc->input->key) << 0 | + test_bit(BTN_RIGHT, msc->input->key) << 1 | + test_bit(BTN_MIDDLE, msc->input->key) << 2; if (emulate_3button) { int id; @@ -177,7 +177,7 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda switch (tdata[7] & TOUCH_STATE_MASK) { case TOUCH_STATE_START: msc->touches[id].scroll_y = y; - msc->scroll_accel = min_t(int, msc->scroll_accel + 1, + msc->scroll_accel = min_t(int, msc->scroll_accel + 1, ARRAY_SIZE(accel_profile) - 1); break; case TOUCH_STATE_DRAG: @@ -193,7 +193,7 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda /* Generate the input events for this touch. */ if (report_touches) { - int orientation = (misc >> 10) - 32; + int orientation = (misc >> 10) - 32; input_report_abs(input, ABS_MT_TRACKING_ID, id); input_report_abs(input, ABS_MT_TOUCH_MAJOR, tdata[3]); @@ -202,9 +202,8 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda input_report_abs(input, ABS_MT_POSITION_X, x); input_report_abs(input, ABS_MT_POSITION_Y, y); - if (report_undeciphered) { + if (report_undeciphered) input_event(input, EV_MSC, MSC_RAW, tdata[7]); - } input_mt_sync(input); } @@ -291,62 +290,41 @@ static void magicmouse_setup_input(struct input_dev *input, struct hid_device *h input->id.version = hdev->version; input->dev.parent = hdev->dev.parent; - set_bit(EV_KEY, input->evbit); - set_bit(BTN_LEFT, input->keybit); - set_bit(BTN_RIGHT, input->keybit); + __set_bit(EV_KEY, input->evbit); + __set_bit(BTN_LEFT, input->keybit); + __set_bit(BTN_RIGHT, input->keybit); if (emulate_3button) - set_bit(BTN_MIDDLE, input->keybit); - set_bit(BTN_TOOL_FINGER, input->keybit); + __set_bit(BTN_MIDDLE, input->keybit); + __set_bit(BTN_TOOL_FINGER, input->keybit); - set_bit(EV_REL, input->evbit); - set_bit(REL_X, input->relbit); - set_bit(REL_Y, input->relbit); + __set_bit(EV_REL, input->evbit); + __set_bit(REL_X, input->relbit); + __set_bit(REL_Y, input->relbit); if (emulate_scroll_wheel) - set_bit(REL_WHEEL, input->relbit); + __set_bit(REL_WHEEL, input->relbit); if (report_touches) { - set_bit(EV_ABS, input->evbit); - - set_bit(ABS_MT_TRACKING_ID, input->absbit); - input->absmin[ABS_MT_TRACKING_ID] = 0; - input->absmax[ABS_MT_TRACKING_ID] = 15; - input->absfuzz[ABS_MT_TRACKING_ID] = 0; - - set_bit(ABS_MT_TOUCH_MAJOR, input->absbit); - input->absmin[ABS_MT_TOUCH_MAJOR] = 0; - input->absmax[ABS_MT_TOUCH_MAJOR] = 255; - input->absfuzz[ABS_MT_TOUCH_MAJOR] = 4; - - set_bit(ABS_MT_TOUCH_MINOR, input->absbit); - input->absmin[ABS_MT_TOUCH_MINOR] = 0; - input->absmax[ABS_MT_TOUCH_MINOR] = 255; - input->absfuzz[ABS_MT_TOUCH_MINOR] = 4; - - set_bit(ABS_MT_ORIENTATION, input->absbit); - input->absmin[ABS_MT_ORIENTATION] = -32; - input->absmax[ABS_MT_ORIENTATION] = 31; - input->absfuzz[ABS_MT_ORIENTATION] = 1; - - set_bit(ABS_MT_POSITION_X, input->absbit); - input->absmin[ABS_MT_POSITION_X] = -1100; - input->absmax[ABS_MT_POSITION_X] = 1358; - input->absfuzz[ABS_MT_POSITION_X] = 4; - + __set_bit(EV_ABS, input->evbit); + + input_set_abs_params(input, ABS_MT_TRACKING_ID, 0, 15, 0, 0); + input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 255, 4, 0); + input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, 255, 4, 0); + input_set_abs_params(input, ABS_MT_ORIENTATION, -32, 31, 1, 0); + input_set_abs_params(input, ABS_MT_POSITION_X, -1100, 1358, + 4, 0); /* Note: Touch Y position from the device is inverted relative * to how pointer motion is reported (and relative to how USB * HID recommends the coordinates work). This driver keeps * the origin at the same position, and just uses the additive * inverse of the reported Y. */ - set_bit(ABS_MT_POSITION_Y, input->absbit); - input->absmin[ABS_MT_POSITION_Y] = -1589; - input->absmax[ABS_MT_POSITION_Y] = 2047; - input->absfuzz[ABS_MT_POSITION_Y] = 4; + input_set_abs_params(input, ABS_MT_POSITION_Y, -1589, 2047, + 4, 0); } if (report_undeciphered) { - set_bit(EV_MSC, input->evbit); - set_bit(MSC_RAW, input->mscbit); + __set_bit(EV_MSC, input->evbit); + __set_bit(MSC_RAW, input->mscbit); } } @@ -385,7 +363,7 @@ static int magicmouse_probe(struct hid_device *hdev, if (!report) { dev_err(&hdev->dev, "unable to register touch report\n"); ret = -ENOMEM; - goto err_free; + goto err_stop_hw; } report->size = 6; @@ -394,35 +372,37 @@ static int magicmouse_probe(struct hid_device *hdev, if (ret != sizeof(feature_1)) { dev_err(&hdev->dev, "unable to request touch data (1:%d)\n", ret); - goto err_free; + goto err_stop_hw; } ret = hdev->hid_output_raw_report(hdev, feature_2, sizeof(feature_2), HID_FEATURE_REPORT); if (ret != sizeof(feature_2)) { dev_err(&hdev->dev, "unable to request touch data (2:%d)\n", ret); - goto err_free; + goto err_stop_hw; } input = input_allocate_device(); if (!input) { dev_err(&hdev->dev, "can't alloc input device\n"); ret = -ENOMEM; - goto err_free; + goto err_stop_hw; } magicmouse_setup_input(input, hdev); ret = input_register_device(input); if (ret) { dev_err(&hdev->dev, "input device registration failed\n"); - goto err_both; + goto err_input; } msc->input = input; return 0; - err_both: +err_input: input_free_device(input); - err_free: +err_stop_hw: + hid_hw_stop(hdev); +err_free: kfree(msc); return ret; }