Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752755Ab2KAKbZ (ORCPT ); Thu, 1 Nov 2012 06:31:25 -0400 Received: from tw-mx2.synaptics.com.tw ([203.163.83.68]:40993 "EHLO tw-mx2.synaptics.com.tw" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751487Ab2KAKbX convert rfc822-to-8bit (ORCPT ); Thu, 1 Nov 2012 06:31:23 -0400 From: Alexandra Chin To: Henrik Rydberg CC: Dmitry Torokhov , Linux Kernel , Linux Input , Linus Walleij , Naveen Kumar Gaddipati , Mahesh Srinivasan , Alex Chang , Scott Lin , Christopher Heiny Subject: [PATCH v2] staging: ste_rmi4: Convert to Type-B support Thread-Topic: [PATCH v2] staging: ste_rmi4: Convert to Type-B support Thread-Index: AQHNuBv+0VFedXeEGk+Mrm9zy/QdFQ== Date: Thu, 1 Nov 2012 10:31:04 +0000 Message-ID: Accept-Language: zh-TW, en-US Content-Language: zh-TW X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.22.10.5] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6725 Lines: 195 >From 783c14e5978600cc78e11ea078cc413d77a9debd Mon Sep 17 00:00:00 2001 From: Alexandra Chin Date: Thu, 1 Nov 2012 17:02:14 +0800 Subject: [PATCH v2] staging: ste_rmi4: Convert to Type-B support This patch: - convert to MT-B because Synaptics touch devices are capable of tracking identifiable fingers -- driver straightly reports all fingers' status - call input_mt_init_slots with INPUT_MT_DIRECT flag - against v3.7-rc3 kernel Any comments please let me know. Thank you. Alexandra Chin Signed-off-by: Alexandra Chin --- drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c | 68 +++++++++++-------------- 1 files changed, 29 insertions(+), 39 deletions(-) diff --git a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c index 277491a..0338b1e 100644 --- a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c +++ b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c @@ -31,6 +31,7 @@ #include #include #include +#include #include "synaptics_i2c_rmi4.h" /* TODO: for multiple device support will need a per-device mutex */ @@ -67,7 +68,6 @@ #define PDT_START_SCAN_LOCATION (0x00E9) #define PDT_END_SCAN_LOCATION (0x000A) #define PDT_ENTRY_SIZE (0x0006) -#define RMI4_NUMBER_OF_MAX_FINGERS (8) #define SYNAPTICS_RMI4_TOUCHPAD_FUNC_NUM (0x11) #define SYNAPTICS_RMI4_DEVICE_CONTROL_FUNC_NUM (0x01) @@ -164,6 +164,7 @@ struct synaptics_rmi4_device_info { * @regulator: pointer to the regulator structure * @wait: wait queue structure variable * @touch_stopped: flag to stop the thread function + * @fingers_supported: maximum supported fingers * * This structure gives the device data information. */ @@ -184,6 +185,7 @@ struct synaptics_rmi4_data { struct regulator *regulator; wait_queue_head_t wait; bool touch_stopped; + unsigned char fingers_supported; }; /** @@ -303,22 +305,21 @@ static int synpatics_rmi4_touchpad_report(struct synaptics_rmi4_data *pdata, /* number of touch points - fingers down in this case */ int touch_count = 0; int finger; - int fingers_supported; int finger_registers; int reg; int finger_shift; int finger_status; int retval; + int x, y; + int wx, wy; unsigned short data_base_addr; unsigned short data_offset; unsigned char data_reg_blk_size; unsigned char values[2]; unsigned char data[DATA_LEN]; - int x[RMI4_NUMBER_OF_MAX_FINGERS]; - int y[RMI4_NUMBER_OF_MAX_FINGERS]; - int wx[RMI4_NUMBER_OF_MAX_FINGERS]; - int wy[RMI4_NUMBER_OF_MAX_FINGERS]; + unsigned char fingers_supported = pdata->fingers_supported; struct i2c_client *client = pdata->i2c_client; + struct input_dev *input_dev = pdata->input_dev; /* get 2D sensor finger data */ /* @@ -333,7 +334,6 @@ static int synpatics_rmi4_touchpad_report(struct synaptics_rmi4_data *pdata, * 10 = finger present but data may not be accurate, * 11 = reserved for product use. */ - fingers_supported = rfi->num_of_data_points; finger_registers = (fingers_supported + 3)/4; data_base_addr = rfi->fn_desc.data_base_addr; retval = synaptics_rmi4_i2c_block_read(pdata, data_base_addr, values, @@ -353,12 +353,16 @@ static int synpatics_rmi4_touchpad_report(struct synaptics_rmi4_data *pdata, reg = finger/4; /* bit shift to get finger's status */ finger_shift = (finger % 4) * 2; - finger_status = (values[reg] >> finger_shift) & 3; + finger_status = (values[reg] >> finger_shift) & MASK_2BIT; /* * if finger status indicates a finger is present then * read the finger data and report it */ - if (finger_status == 1 || finger_status == 2) { + input_mt_slot(input_dev, finger); + input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, + finger_status != 0); + + if (finger_status) { /* Read the finger data */ data_offset = data_base_addr + ((finger * data_reg_blk_size) + @@ -371,46 +375,29 @@ static int synpatics_rmi4_touchpad_report(struct synaptics_rmi4_data *pdata, __func__); return 0; } else { - x[touch_count] = - (data[0] << 4) | (data[2] & MASK_4BIT); - y[touch_count] = - (data[1] << 4) | - ((data[2] >> 4) & MASK_4BIT); - wy[touch_count] = - (data[3] >> 4) & MASK_4BIT; - wx[touch_count] = - (data[3] & MASK_4BIT); + x = (data[0] << 4) | (data[2] & MASK_4BIT); + y = (data[1] << 4) + | ((data[2] >> 4) & MASK_4BIT); + wy = (data[3] >> 4) & MASK_4BIT; + wx = (data[3] & MASK_4BIT); if (pdata->board->x_flip) - x[touch_count] = - pdata->sensor_max_x - - x[touch_count]; + x = pdata->sensor_max_x - x; if (pdata->board->y_flip) - y[touch_count] = - pdata->sensor_max_y - - y[touch_count]; + y = pdata->sensor_max_y - y; } + input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, + max(wx, wy)); + input_report_abs(input_dev, ABS_MT_POSITION_X, x); + input_report_abs(input_dev, ABS_MT_POSITION_Y, y); + /* number of active touch points */ touch_count++; } } - /* report to input subsystem */ - if (touch_count) { - for (finger = 0; finger < touch_count; finger++) { - input_report_abs(pdata->input_dev, ABS_MT_TOUCH_MAJOR, - max(wx[finger] , wy[finger])); - input_report_abs(pdata->input_dev, ABS_MT_POSITION_X, - x[finger]); - input_report_abs(pdata->input_dev, ABS_MT_POSITION_Y, - y[finger]); - input_mt_sync(pdata->input_dev); - } - } else - input_mt_sync(pdata->input_dev); - /* sync after groups of events */ - input_sync(pdata->input_dev); + input_sync(input_dev); /* return the number of touch points */ return touch_count; } @@ -575,6 +562,7 @@ static int synpatics_rmi4_touchpad_detect(struct synaptics_rmi4_data *pdata, if ((queries[1] & MASK_3BIT) == 5) rfi->num_of_data_points = 10; } + pdata->fingers_supported = rfi->num_of_data_points; /* Need to get interrupt info for handling interrupts */ rfi->index_to_intr_reg = (interruptcount + 7)/8; if (rfi->index_to_intr_reg != 0) @@ -988,6 +976,8 @@ static int __devinit synaptics_rmi4_probe rmi4_data->sensor_max_y, 0, 0); input_set_abs_params(rmi4_data->input_dev, ABS_MT_TOUCH_MAJOR, 0, MAX_TOUCH_MAJOR, 0, 0); + input_mt_init_slots(rmi4_data->input_dev, + rmi4_data->fingers_supported, INPUT_MT_DIRECT); /* Clear interrupts */ synaptics_rmi4_i2c_block_read(rmi4_data, -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/