Return-Path: Subject: [PATCH 1/2] Add separate mode switching function wacom bluetooth pen tablet. From: Przemo Firszt To: linux-bluetooth , Bastien Nocera , marcel , Ping , Peter Hutterer , Jiri Kosina Content-Type: multipart/mixed; boundary="=-rX0f/+wYfsh/c5rNR3e6" Date: Thu, 18 Mar 2010 15:25:02 +0000 Message-ID: <1268925902.12672.25.camel@pldmachine> Mime-Version: 1.0 List-ID: --=-rX0f/+wYfsh/c5rNR3e6 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Hi, Two patches to allow switching of reporting speed of wacom bluetooth tablet from userspace through sysfs. kind reagrds, Przemo --=-rX0f/+wYfsh/c5rNR3e6 Content-Disposition: attachment; filename*0=0001-Add-separate-mode-switching-function-wacom-bluetooth.pat; filename*1=ch Content-Type: text/x-patch; name="0001-Add-separate-mode-switching-function-wacom-bluetooth.patch"; charset="UTF-8" Content-Transfer-Encoding: 7bit >From ac9a87b92cf2f8cc27a1d29123c5fa1a8bebd71a Mon Sep 17 00:00:00 2001 From: Przemo Firszt Date: Thu, 18 Mar 2010 11:58:22 +0000 Subject: [PATCH 1/2] Add separate mode switching function wacom bluetooth pen tablet. wacom_poke function allows to switch tablet reporting speed. The patch dosen't add any new functionality, but it's preparation for user-space speed switching through sysfs. Signed-off-by: Przemo Firszt --- drivers/hid/hid-wacom.c | 66 ++++++++++++++++++++++++++++------------------ 1 files changed, 40 insertions(+), 26 deletions(-) diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c index 4d2d2a2..f9d4939 100644 --- a/drivers/hid/hid-wacom.c +++ b/drivers/hid/hid-wacom.c @@ -103,6 +103,44 @@ static int wacom_ac_get_property(struct power_supply *psy, } #endif +static void wacom_poke(struct hid_device *hdev, u8 speed) +{ + int limit, ret; + char rep_data[2]; + + rep_data[0] = 0x03 ; rep_data[1] = 0x00; + limit = 3; + do { + ret = hdev->hid_output_raw_report(hdev, rep_data, 2, + HID_FEATURE_REPORT); + } while (ret < 0 && limit-- > 0); + + if (ret >= 0) { + if (speed == 0) + rep_data[0] = 0x05; + else + rep_data[0] = 0x06; + + rep_data[1] = 0x00; + limit = 3; + do { + ret = hdev->hid_output_raw_report(hdev, rep_data, 2, + HID_FEATURE_REPORT); + } while (ret < 0 && limit-- > 0); + + if (ret >= 0) + return; + } + + /* + * Note that if the raw queries fail, it's not a hard failure and it + * is safe to continue + */ + dev_warn(&hdev->dev, "failed to poke device, command %d, err %d\n", + rep_data[0], ret); + return; +} + static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report, u8 *raw_data, int size) { @@ -236,9 +274,7 @@ static int wacom_probe(struct hid_device *hdev, struct hid_input *hidinput; struct input_dev *input; struct wacom_data *wdata; - char rep_data[2]; int ret; - int limit; wdata = kzalloc(sizeof(*wdata), GFP_KERNEL); if (wdata == NULL) { @@ -261,30 +297,8 @@ static int wacom_probe(struct hid_device *hdev, goto err_free; } - /* - * Note that if the raw queries fail, it's not a hard failure and it - * is safe to continue - */ - - /* Set Wacom mode2 */ - rep_data[0] = 0x03; rep_data[1] = 0x00; - limit = 3; - do { - ret = hdev->hid_output_raw_report(hdev, rep_data, 2, - HID_FEATURE_REPORT); - } while (ret < 0 && limit-- > 0); - if (ret < 0) - dev_warn(&hdev->dev, "failed to poke device #1, %d\n", ret); - - /* 0x06 - high reporting speed, 0x05 - low speed */ - rep_data[0] = 0x06; rep_data[1] = 0x00; - limit = 3; - do { - ret = hdev->hid_output_raw_report(hdev, rep_data, 2, - HID_FEATURE_REPORT); - } while (ret < 0 && limit-- > 0); - if (ret < 0) - dev_warn(&hdev->dev, "failed to poke device #2, %d\n", ret); + /* Set Wacom mode 2 with high reporting speed */ + wacom_poke(hdev, 1); #ifdef CONFIG_HID_WACOM_POWER_SUPPLY wdata->battery.properties = wacom_battery_props; -- 1.7.0.1 --=-rX0f/+wYfsh/c5rNR3e6--