diff options
author | Masaki Ota <masaki.ota@jp.alps.com> | 2017-10-06 05:53:14 +0300 |
---|---|---|
committer | Jiri Kosina <jkosina@suse.cz> | 2017-10-17 12:35:21 +0300 |
commit | 5d8c720d3b74413cc62d5015f23f57a51dc06112 (patch) | |
tree | e37e36f0c070b4c8f9a3bcb84e6cd7ee1f37a57c | |
parent | ce6abcf83bf451159f421fe4f928147a882ec9da (diff) | |
download | linux-5d8c720d3b74413cc62d5015f23f57a51dc06112.tar.xz |
HID: alps: Separate U1 device code
Create 'static int u1_init()' and factor out U1 device initialization code from
main initialization and introduce per-device 'has_sp' flag.
[jkosina@suse.cz: rewrite changelog]
Signed-off-by: Masaki Ota <masaki.ota@jp.alps.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
-rw-r--r-- | drivers/hid/hid-alps.c | 120 |
1 files changed, 67 insertions, 53 deletions
diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c index 519bfcf9eaf0..c4ea5c6c9be9 100644 --- a/drivers/hid/hid-alps.c +++ b/drivers/hid/hid-alps.c @@ -75,6 +75,7 @@ * @y_max: maximum y coordinate value * @btn_cnt: number of buttons * @sp_btn_cnt: number of stick buttons + * @has_sp: boolean of sp existense */ struct u1_dev { struct input_dev *input; @@ -96,6 +97,7 @@ struct u1_dev { u32 y_max; u32 btn_cnt; u32 sp_btn_cnt; + u8 has_sp; }; static int u1_read_write_register(struct hid_device *hdev, u32 address, @@ -255,99 +257,130 @@ static int alps_post_resume(struct hid_device *hdev) } #endif /* CONFIG_PM */ -static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi) +static int u1_init(struct hid_device *hdev, struct u1_dev *pri_data) { - struct u1_dev *data = hid_get_drvdata(hdev); - struct input_dev *input = hi->input, *input2; int ret; - int res_x, res_y, i; - - data->input = input; - - hid_dbg(hdev, "Opening low level driver\n"); - ret = hid_hw_open(hdev); - if (ret) - return ret; - - /* Allow incoming hid reports */ - hid_device_io_start(hdev); /* Device initialization */ ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1, - &data->dev_ctrl, 0, true); + &pri_data->dev_ctrl, 0, true); if (ret < 0) { dev_err(&hdev->dev, "failed U1_DEV_CTRL_1 (%d)\n", ret); goto exit; } - data->dev_ctrl &= ~U1_DISABLE_DEV; - data->dev_ctrl |= U1_TP_ABS_MODE; + pri_data->dev_ctrl &= ~U1_DISABLE_DEV; + pri_data->dev_ctrl |= U1_TP_ABS_MODE; ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1, - NULL, data->dev_ctrl, false); + NULL, pri_data->dev_ctrl, false); if (ret < 0) { dev_err(&hdev->dev, "failed to change TP mode (%d)\n", ret); goto exit; } ret = u1_read_write_register(hdev, ADDRESS_U1_NUM_SENS_X, - &data->sen_line_num_x, 0, true); + &pri_data->sen_line_num_x, 0, true); if (ret < 0) { dev_err(&hdev->dev, "failed U1_NUM_SENS_X (%d)\n", ret); goto exit; } ret = u1_read_write_register(hdev, ADDRESS_U1_NUM_SENS_Y, - &data->sen_line_num_y, 0, true); + &pri_data->sen_line_num_y, 0, true); if (ret < 0) { dev_err(&hdev->dev, "failed U1_NUM_SENS_Y (%d)\n", ret); goto exit; } ret = u1_read_write_register(hdev, ADDRESS_U1_PITCH_SENS_X, - &data->pitch_x, 0, true); + &pri_data->pitch_x, 0, true); if (ret < 0) { dev_err(&hdev->dev, "failed U1_PITCH_SENS_X (%d)\n", ret); goto exit; } ret = u1_read_write_register(hdev, ADDRESS_U1_PITCH_SENS_Y, - &data->pitch_y, 0, true); + &pri_data->pitch_y, 0, true); if (ret < 0) { dev_err(&hdev->dev, "failed U1_PITCH_SENS_Y (%d)\n", ret); goto exit; } ret = u1_read_write_register(hdev, ADDRESS_U1_RESO_DWN_ABS, - &data->resolution, 0, true); + &pri_data->resolution, 0, true); if (ret < 0) { dev_err(&hdev->dev, "failed U1_RESO_DWN_ABS (%d)\n", ret); goto exit; } + pri_data->x_active_len_mm = + (pri_data->pitch_x * (pri_data->sen_line_num_x - 1)) / 10; + pri_data->y_active_len_mm = + (pri_data->pitch_y * (pri_data->sen_line_num_y - 1)) / 10; + + pri_data->x_max = + (pri_data->resolution << 2) * (pri_data->sen_line_num_x - 1); + pri_data->y_max = + (pri_data->resolution << 2) * (pri_data->sen_line_num_y - 1); ret = u1_read_write_register(hdev, ADDRESS_U1_PAD_BTN, - &data->btn_info, 0, true); + &pri_data->btn_info, 0, true); if (ret < 0) { dev_err(&hdev->dev, "failed U1_PAD_BTN (%d)\n", ret); goto exit; } + pri_data->has_sp = 0; /* Check StickPointer device */ ret = u1_read_write_register(hdev, ADDRESS_U1_DEVICE_TYP, - &data->dev_type, 0, true); + &pri_data->dev_type, 0, true); if (ret < 0) { dev_err(&hdev->dev, "failed U1_DEVICE_TYP (%d)\n", ret); goto exit; } - data->x_active_len_mm = - (data->pitch_x * (data->sen_line_num_x - 1)) / 10; - data->y_active_len_mm = - (data->pitch_y * (data->sen_line_num_y - 1)) / 10; + if (pri_data->dev_type & U1_DEVTYPE_SP_SUPPORT) { + pri_data->dev_ctrl |= U1_SP_ABS_MODE; + ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1, + NULL, pri_data->dev_ctrl, false); + if (ret < 0) { + dev_err(&hdev->dev, "failed SP mode (%d)\n", ret); + goto exit; + } + + ret = u1_read_write_register(hdev, ADDRESS_U1_SP_BTN, + &pri_data->sp_btn_info, 0, true); + if (ret < 0) { + dev_err(&hdev->dev, "failed U1_SP_BTN (%d)\n", ret); + goto exit; + } + pri_data->has_sp = 1; + } - data->x_max = - (data->resolution << 2) * (data->sen_line_num_x - 1); - data->y_max = - (data->resolution << 2) * (data->sen_line_num_y - 1); +exit: + return ret; +} + +static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi) +{ + struct u1_dev *data = hid_get_drvdata(hdev); + struct input_dev *input = hi->input, *input2; + int ret; + int res_x, res_y, i; + + data->input = input; + + hid_dbg(hdev, "Opening low level driver\n"); + ret = hid_hw_open(hdev); + if (ret) + return ret; + + /* Allow incoming hid reports */ + hid_device_io_start(hdev); + + ret = u1_init(hdev, data); + + if (ret) + goto exit; __set_bit(EV_ABS, input->evbit); input_set_abs_params(input, ABS_MT_POSITION_X, 1, data->x_max, 0, 0); @@ -379,8 +412,7 @@ static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi) /* Stick device initialization */ - if (data->dev_type & U1_DEVTYPE_SP_SUPPORT) { - + if (data->has_sp) { input2 = input_allocate_device(); if (!input2) { ret = -ENOMEM; @@ -388,24 +420,6 @@ static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi) } data->input2 = input2; - - data->dev_ctrl |= U1_SP_ABS_MODE; - ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1, - NULL, data->dev_ctrl, false); - if (ret < 0) { - dev_err(&hdev->dev, "failed SP mode (%d)\n", ret); - input_free_device(input2); - goto exit; - } - - ret = u1_read_write_register(hdev, ADDRESS_U1_SP_BTN, - &data->sp_btn_info, 0, true); - if (ret < 0) { - dev_err(&hdev->dev, "failed U1_SP_BTN (%d)\n", ret); - input_free_device(input2); - goto exit; - } - input2->phys = input->phys; input2->name = "DualPoint Stick"; input2->id.bustype = BUS_I2C; |