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[95.195.152.75]) by smtp.gmail.com with ESMTPSA id rh2sm2068148lbb.36.2016.03.18.02.12.26 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 18 Mar 2016 02:12:32 -0700 (PDT) From: Linus Walleij To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org Cc: Linus Walleij , Andrew Duggan , Christopher Heiny , Dmitry Torokhov Subject: [PATCH] staging: delete STE RMI4 hackish driver Date: Fri, 18 Mar 2016 10:12:15 +0100 Message-Id: <1458292335-8632-1-git-send-email-linus.walleij@linaro.org> X-Mailer: git-send-email 2.4.3 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As of commit 62d5bdf972ebcfc99f72f734ae979713e4ca6450 "Merge branch 'synaptics-rmi4' into next" the input subsystem has a proper RMI4 infrastructure and touchscreen driver. The ST Ux500 platform has been converted to use the new driver and its devicetree bindings. Delete this ancient hack. Cc: Andrew Duggan Cc: Christopher Heiny Cc: Dmitry Torokhov Signed-off-by: Linus Walleij --- drivers/staging/ste_rmi4/Kconfig | 9 - drivers/staging/ste_rmi4/Makefile | 4 - drivers/staging/ste_rmi4/TODO | 7 - drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c | 1137 ------------------------- drivers/staging/ste_rmi4/synaptics_i2c_rmi4.h | 46 - 5 files changed, 1203 deletions(-) delete mode 100644 drivers/staging/ste_rmi4/Kconfig delete mode 100644 drivers/staging/ste_rmi4/Makefile delete mode 100644 drivers/staging/ste_rmi4/TODO delete mode 100644 drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c delete mode 100644 drivers/staging/ste_rmi4/synaptics_i2c_rmi4.h -- 2.4.3 diff --git a/drivers/staging/ste_rmi4/Kconfig b/drivers/staging/ste_rmi4/Kconfig deleted file mode 100644 index e8679509e525..000000000000 --- a/drivers/staging/ste_rmi4/Kconfig +++ /dev/null @@ -1,9 +0,0 @@ -config TOUCHSCREEN_SYNAPTICS_I2C_RMI4 - tristate "Synaptics i2c rmi4 touchscreen" - depends on I2C && INPUT - help - Say Y here if you have a Synaptics RMI4 and - want to enable support for the built-in touchscreen. - - To compile this driver as a module, choose M here: the - module will be called synaptics_rmi4_ts. diff --git a/drivers/staging/ste_rmi4/Makefile b/drivers/staging/ste_rmi4/Makefile deleted file mode 100644 index 6cce2ed187ef..000000000000 --- a/drivers/staging/ste_rmi4/Makefile +++ /dev/null @@ -1,4 +0,0 @@ -# -# Makefile for the RMI4 touchscreen driver. -# -obj-$(CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4) += synaptics_i2c_rmi4.o diff --git a/drivers/staging/ste_rmi4/TODO b/drivers/staging/ste_rmi4/TODO deleted file mode 100644 index 9be2437da85f..000000000000 --- a/drivers/staging/ste_rmi4/TODO +++ /dev/null @@ -1,7 +0,0 @@ -TODO ----- - -Wait for the official upstream synaptics rmi4 clearpad drivers as promised over the past few months -Merge any device support needed from this driver into it -Delete this driver - diff --git a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c deleted file mode 100644 index 774958a8ce02..000000000000 --- a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c +++ /dev/null @@ -1,1137 +0,0 @@ -/** - * - * Synaptics Register Mapped Interface (RMI4) I2C Physical Layer Driver. - * Copyright (c) 2007-2010, Synaptics Incorporated - * - * Author: Js HA for ST-Ericsson - * Author: Naveen Kumar G for ST-Ericsson - * Copyright 2010 (c) ST-Ericsson AB - */ -/* - * This file is licensed under the GPL2 license. - * - *############################################################################# - * GPL - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - * - *############################################################################# - */ - -#include -#include -#include -#include -#include -#include -#include -#include "synaptics_i2c_rmi4.h" - -/* TODO: for multiple device support will need a per-device mutex */ -#define DRIVER_NAME "synaptics_rmi4_i2c" - -#define MAX_ERROR_REPORT 6 -#define MAX_TOUCH_MAJOR 15 -#define MAX_RETRY_COUNT 5 -#define STD_QUERY_LEN 21 -#define PAGE_LEN 2 -#define DATA_BUF_LEN 32 -#define BUF_LEN 37 -#define QUERY_LEN 9 -#define DATA_LEN 12 -#define HAS_TAP 0x01 -#define HAS_PALMDETECT 0x01 -#define HAS_ROTATE 0x02 -#define HAS_TAPANDHOLD 0x02 -#define HAS_DOUBLETAP 0x04 -#define HAS_EARLYTAP 0x08 -#define HAS_RELEASE 0x08 -#define HAS_FLICK 0x10 -#define HAS_PRESS 0x20 -#define HAS_PINCH 0x40 - -#define MASK_16BIT 0xFFFF -#define MASK_8BIT 0xFF -#define MASK_7BIT 0x7F -#define MASK_5BIT 0x1F -#define MASK_4BIT 0x0F -#define MASK_3BIT 0x07 -#define MASK_2BIT 0x03 -#define TOUCHPAD_CTRL_INTR 0x8 -#define PDT_START_SCAN_LOCATION (0x00E9) -#define PDT_END_SCAN_LOCATION (0x000A) -#define PDT_ENTRY_SIZE (0x0006) -#define SYNAPTICS_RMI4_TOUCHPAD_FUNC_NUM (0x11) -#define SYNAPTICS_RMI4_DEVICE_CONTROL_FUNC_NUM (0x01) - -/** - * struct synaptics_rmi4_fn_desc - contains the function descriptor information - * @query_base_addr: base address for query - * @cmd_base_addr: base address for command - * @ctrl_base_addr: base address for control - * @data_base_addr: base address for data - * @intr_src_count: count for the interrupt source - * @fn_number: function number - * - * This structure is used to gives the function descriptor information - * of the particular functionality. - */ -struct synaptics_rmi4_fn_desc { - unsigned char query_base_addr; - unsigned char cmd_base_addr; - unsigned char ctrl_base_addr; - unsigned char data_base_addr; - unsigned char intr_src_count; - unsigned char fn_number; -}; - -/** - * struct synaptics_rmi4_fn - contains the function information - * @fn_number: function number - * @num_of_data_sources: number of data sources - * @num_of_data_points: number of fingers touched - * @size_of_data_register_block: data register block size - * @index_to_intr_reg: index for interrupt register - * @intr_mask: interrupt mask value - * @fn_desc: variable for function descriptor structure - * @link: linked list for function descriptors - * - * This structure gives information about the number of data sources and - * the number of data registers associated with the function. - */ -struct synaptics_rmi4_fn { - unsigned char fn_number; - unsigned char num_of_data_sources; - unsigned char num_of_data_points; - unsigned char size_of_data_register_block; - unsigned char index_to_intr_reg; - unsigned char intr_mask; - struct synaptics_rmi4_fn_desc fn_desc; - struct list_head link; -}; - -/** - * struct synaptics_rmi4_device_info - contains the rmi4 device information - * @version_major: protocol major version number - * @version_minor: protocol minor version number - * @manufacturer_id: manufacturer identification byte - * @product_props: product properties information - * @product_info: product info array - * @date_code: device manufacture date - * @tester_id: tester id array - * @serial_number: serial number for that device - * @product_id_string: product id for the device - * @support_fn_list: linked list for device information - * - * This structure gives information about the number of data sources and - * the number of data registers associated with the function. - */ -struct synaptics_rmi4_device_info { - unsigned int version_major; - unsigned int version_minor; - unsigned char manufacturer_id; - unsigned char product_props; - unsigned char product_info[2]; - unsigned char date_code[3]; - unsigned short tester_id; - unsigned short serial_number; - unsigned char product_id_string[11]; - struct list_head support_fn_list; -}; - -/** - * struct synaptics_rmi4_data - contains the rmi4 device data - * @rmi4_mod_info: structure variable for rmi4 device info - * @input_dev: pointer for input device - * @i2c_client: pointer for i2c client - * @board: constant pointer for touch platform data - * @fn_list_mutex: mutex for function list - * @rmi4_page_mutex: mutex for rmi4 page - * @current_page: variable for integer - * @number_of_interrupt_register: interrupt registers count - * @fn01_ctrl_base_addr: control base address for fn01 - * @fn01_query_base_addr: query base address for fn01 - * @fn01_data_base_addr: data base address for fn01 - * @sensor_max_x: sensor maximum x value - * @sensor_max_y: sensor maximum y value - * @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. - */ -struct synaptics_rmi4_data { - struct synaptics_rmi4_device_info rmi4_mod_info; - struct input_dev *input_dev; - struct i2c_client *i2c_client; - const struct synaptics_rmi4_platform_data *board; - struct mutex fn_list_mutex; - struct mutex rmi4_page_mutex; - int current_page; - unsigned int number_of_interrupt_register; - unsigned short fn01_ctrl_base_addr; - unsigned short fn01_query_base_addr; - unsigned short fn01_data_base_addr; - int sensor_max_x; - int sensor_max_y; - struct regulator *regulator; - wait_queue_head_t wait; - bool touch_stopped; - unsigned char fingers_supported; -}; - -/** - * synaptics_rmi4_set_page() - sets the page - * @pdata: pointer to synaptics_rmi4_data structure - * @address: set the address of the page - * - * This function is used to set the page and returns integer. - */ -static int synaptics_rmi4_set_page(struct synaptics_rmi4_data *pdata, - unsigned int address) -{ - unsigned char txbuf[PAGE_LEN]; - int retval; - unsigned int page; - struct i2c_client *i2c = pdata->i2c_client; - - page = ((address >> 8) & MASK_8BIT); - if (page != pdata->current_page) { - txbuf[0] = MASK_8BIT; - txbuf[1] = page; - retval = i2c_master_send(i2c, txbuf, PAGE_LEN); - if (retval != PAGE_LEN) - dev_err(&i2c->dev, "failed:%d\n", retval); - else - pdata->current_page = page; - } else - retval = PAGE_LEN; - return retval; -} -/** - * synaptics_rmi4_i2c_block_read() - read the block of data - * @pdata: pointer to synaptics_rmi4_data structure - * @address: read the block of data from this offset - * @valp: pointer to a buffer containing the data to be read - * @size: number of bytes to read - * - * This function is to read the block of data and returns integer. - */ -static int synaptics_rmi4_i2c_block_read(struct synaptics_rmi4_data *pdata, - unsigned short address, - unsigned char *valp, int size) -{ - int retval = 0; - int retry_count = 0; - int index; - struct i2c_client *i2c = pdata->i2c_client; - - mutex_lock(&(pdata->rmi4_page_mutex)); - retval = synaptics_rmi4_set_page(pdata, address); - if (retval != PAGE_LEN) - goto exit; - index = address & MASK_8BIT; -retry: - retval = i2c_smbus_read_i2c_block_data(i2c, index, size, valp); - if (retval != size) { - if (++retry_count == MAX_RETRY_COUNT) - dev_err(&i2c->dev, - "%s:address 0x%04x size %d failed:%d\n", - __func__, address, size, retval); - else { - synaptics_rmi4_set_page(pdata, address); - goto retry; - } - } -exit: - mutex_unlock(&(pdata->rmi4_page_mutex)); - return retval; -} - -/** - * synaptics_rmi4_i2c_byte_write() - write the single byte data - * @pdata: pointer to synaptics_rmi4_data structure - * @address: write the block of data from this offset - * @data: data to be write - * - * This function is to write the single byte data and returns integer. - */ -static int synaptics_rmi4_i2c_byte_write(struct synaptics_rmi4_data *pdata, - unsigned short address, - unsigned char data) -{ - unsigned char txbuf[2]; - int retval = 0; - struct i2c_client *i2c = pdata->i2c_client; - - /* Can't have anyone else changing the page behind our backs */ - mutex_lock(&(pdata->rmi4_page_mutex)); - - retval = synaptics_rmi4_set_page(pdata, address); - if (retval != PAGE_LEN) - goto exit; - txbuf[0] = address & MASK_8BIT; - txbuf[1] = data; - retval = i2c_master_send(pdata->i2c_client, txbuf, 2); - /* Add in retry on writes only in certain error return values */ - if (retval != 2) { - dev_err(&i2c->dev, "failed:%d\n", retval); - retval = -EIO; - } else - retval = 1; -exit: - mutex_unlock(&(pdata->rmi4_page_mutex)); - return retval; -} - -/** - * synpatics_rmi4_touchpad_report() - reports for the rmi4 touchpad device - * @pdata: pointer to synaptics_rmi4_data structure - * @rfi: pointer to synaptics_rmi4_fn structure - * - * This function calls to reports for the rmi4 touchpad device - */ -static int synpatics_rmi4_touchpad_report(struct synaptics_rmi4_data *pdata, - struct synaptics_rmi4_fn *rfi) -{ - /* number of touch points - fingers down in this case */ - int touch_count = 0; - int finger; - 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]; - 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 */ - /* - * First get the finger status field - the size of the finger status - * field is determined by the number of finger supporte - 2 bits per - * finger, so the number of registers to read is: - * registerCount = ceil(numberOfFingers/4). - * Read the required number of registers and check each 2 bit field to - * determine if a finger is down: - * 00 = finger not present, - * 01 = finger present and data accurate, - * 10 = finger present but data may not be accurate, - * 11 = reserved for product use. - */ - 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, - finger_registers); - if (retval != finger_registers) { - dev_err(&client->dev, "%s:read status registers failed\n", - __func__); - return 0; - } - /* - * For each finger present, read the proper number of registers - * to get absolute data. - */ - data_reg_blk_size = rfi->size_of_data_register_block; - for (finger = 0; finger < fingers_supported; finger++) { - /* determine which data byte the finger status is in */ - reg = finger / 4; - /* bit shift to get finger's status */ - finger_shift = (finger % 4) * 2; - finger_status = (values[reg] >> finger_shift) & 3; - /* - * if finger status indicates a finger is present then - * read the finger data and report it - */ - 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) + - finger_registers); - retval = synaptics_rmi4_i2c_block_read(pdata, - data_offset, data, - data_reg_blk_size); - if (retval != data_reg_blk_size) { - dev_err(&client->dev, "%s:read data failed\n", - __func__); - return 0; - } - 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 = pdata->sensor_max_x - x; - if (pdata->board->y_flip) - 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++; - } - } - - /* sync after groups of events */ - input_mt_sync_frame(input_dev); - input_sync(input_dev); - /* return the number of touch points */ - return touch_count; -} - -/** - * synaptics_rmi4_report_device() - reports the rmi4 device - * @pdata: pointer to synaptics_rmi4_data structure - * @rfi: pointer to synaptics_rmi4_fn - * - * This function is used to call the report function of the rmi4 device. - */ -static int synaptics_rmi4_report_device(struct synaptics_rmi4_data *pdata, - struct synaptics_rmi4_fn *rfi) -{ - int touch = 0; - struct i2c_client *client = pdata->i2c_client; - static int num_error_reports; - - if (rfi->fn_number != SYNAPTICS_RMI4_TOUCHPAD_FUNC_NUM) { - num_error_reports++; - if (num_error_reports < MAX_ERROR_REPORT) - dev_err(&client->dev, "%s:report not supported\n", - __func__); - } else - touch = synpatics_rmi4_touchpad_report(pdata, rfi); - return touch; -} -/** - * synaptics_rmi4_sensor_report() - reports to input subsystem - * @pdata: pointer to synaptics_rmi4_data structure - * - * This function is used to reads in all data sources and reports - * them to the input subsystem. - */ -static int synaptics_rmi4_sensor_report(struct synaptics_rmi4_data *pdata) -{ - unsigned char intr_status[4]; - /* number of touch points - fingers or buttons */ - int touch = 0; - unsigned int retval; - struct synaptics_rmi4_fn *rfi; - struct synaptics_rmi4_device_info *rmi; - struct i2c_client *client = pdata->i2c_client; - - /* - * Get the interrupt status from the function $01 - * control register+1 to find which source(s) were interrupting - * so we can read the data from the source(s) (2D sensor, buttons..) - */ - retval = synaptics_rmi4_i2c_block_read(pdata, - pdata->fn01_data_base_addr + 1, - intr_status, - pdata->number_of_interrupt_register); - if (retval != pdata->number_of_interrupt_register) { - dev_err(&client->dev, - "could not read interrupt status registers\n"); - return 0; - } - /* - * check each function that has data sources and if the interrupt for - * that triggered then call that RMI4 functions report() function to - * gather data and report it to the input subsystem - */ - rmi = &(pdata->rmi4_mod_info); - list_for_each_entry(rfi, &rmi->support_fn_list, link) { - if (rfi->num_of_data_sources) { - if (intr_status[rfi->index_to_intr_reg] & - rfi->intr_mask) - touch = synaptics_rmi4_report_device(pdata, - rfi); - } - } - /* return the number of touch points */ - return touch; -} - -/** - * synaptics_rmi4_irq() - thread function for rmi4 attention line - * @irq: irq value - * @data: void pointer - * - * This function is interrupt thread function. It just notifies the - * application layer that attention is required. - */ -static irqreturn_t synaptics_rmi4_irq(int irq, void *data) -{ - struct synaptics_rmi4_data *pdata = data; - int touch_count; - - do { - touch_count = synaptics_rmi4_sensor_report(pdata); - if (touch_count) - wait_event_timeout(pdata->wait, pdata->touch_stopped, - msecs_to_jiffies(1)); - else - break; - } while (!pdata->touch_stopped); - return IRQ_HANDLED; -} - -/** - * synpatics_rmi4_touchpad_detect() - detects the rmi4 touchpad device - * @pdata: pointer to synaptics_rmi4_data structure - * @rfi: pointer to synaptics_rmi4_fn structure - * @fd: pointer to synaptics_rmi4_fn_desc structure - * @interruptcount: count the number of interrupts - * - * This function calls to detects the rmi4 touchpad device - */ -static int synpatics_rmi4_touchpad_detect(struct synaptics_rmi4_data *pdata, - struct synaptics_rmi4_fn *rfi, - struct synaptics_rmi4_fn_desc *fd, - unsigned int interruptcount) -{ - unsigned char queries[QUERY_LEN]; - unsigned short intr_offset; - unsigned char abs_data_size; - unsigned char abs_data_blk_size; - unsigned char egr_0, egr_1; - unsigned int all_data_blk_size; - int has_pinch, has_flick, has_tap; - int has_tapandhold, has_doubletap; - int has_earlytap, has_press; - int has_palmdetect, has_rotate; - int has_rel; - int i; - int retval; - struct i2c_client *client = pdata->i2c_client; - - rfi->fn_desc.query_base_addr = fd->query_base_addr; - rfi->fn_desc.data_base_addr = fd->data_base_addr; - rfi->fn_desc.intr_src_count = fd->intr_src_count; - rfi->fn_desc.fn_number = fd->fn_number; - rfi->fn_number = fd->fn_number; - rfi->num_of_data_sources = fd->intr_src_count; - rfi->fn_desc.ctrl_base_addr = fd->ctrl_base_addr; - rfi->fn_desc.cmd_base_addr = fd->cmd_base_addr; - - /* - * need to get number of fingers supported, data size, etc. - * to be used when getting data since the number of registers to - * read depends on the number of fingers supported and data size. - */ - retval = synaptics_rmi4_i2c_block_read(pdata, fd->query_base_addr, - queries, - sizeof(queries)); - if (retval != sizeof(queries)) { - dev_err(&client->dev, "%s:read function query registers\n", - __func__); - return retval; - } - /* - * 2D data sources have only 3 bits for the number of fingers - * supported - so the encoding is a bit weird. - */ - if ((queries[1] & MASK_3BIT) <= 4) - /* add 1 since zero based */ - rfi->num_of_data_points = (queries[1] & MASK_3BIT) + 1; - else { - /* - * a value of 5 is up to 10 fingers - 6 and 7 are reserved - * (shouldn't get these i int retval;n a normal 2D source). - */ - 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) - rfi->index_to_intr_reg -= 1; - /* - * loop through interrupts for each source in fn $11 - * and or in a bit to the interrupt mask for each. - */ - intr_offset = interruptcount % 8; - rfi->intr_mask = 0; - for (i = intr_offset; - i < ((fd->intr_src_count & MASK_3BIT) + intr_offset); i++) - rfi->intr_mask |= 1 << i; - - /* Size of just the absolute data for one finger */ - abs_data_size = queries[5] & MASK_2BIT; - /* One each for X and Y, one for LSB for X & Y, one for W, one for Z */ - abs_data_blk_size = 3 + (2 * (abs_data_size == 0 ? 1 : 0)); - rfi->size_of_data_register_block = abs_data_blk_size; - - /* - * need to determine the size of data to read - this depends on - * conditions such as whether Relative data is reported and if Gesture - * data is reported. - */ - egr_0 = queries[7]; - egr_1 = queries[8]; - - /* - * Get info about what EGR data is supported, whether it has - * Relative data supported, etc. - */ - has_pinch = egr_0 & HAS_PINCH; - has_flick = egr_0 & HAS_FLICK; - has_tap = egr_0 & HAS_TAP; - has_earlytap = egr_0 & HAS_EARLYTAP; - has_press = egr_0 & HAS_PRESS; - has_rotate = egr_1 & HAS_ROTATE; - has_rel = queries[1] & HAS_RELEASE; - has_tapandhold = egr_0 & HAS_TAPANDHOLD; - has_doubletap = egr_0 & HAS_DOUBLETAP; - has_palmdetect = egr_1 & HAS_PALMDETECT; - - /* - * Size of all data including finger status, absolute data for each - * finger, relative data and EGR data - */ - all_data_blk_size = - /* finger status, four fingers per register */ - ((rfi->num_of_data_points + 3) / 4) + - /* absolute data, per finger times number of fingers */ - (abs_data_blk_size * rfi->num_of_data_points) + - /* - * two relative registers (if relative is being reported) - */ - 2 * has_rel + - /* - * F11_2D_data8 is only present if the egr_0 - * register is non-zero. - */ - !!(egr_0) + - /* - * F11_2D_data9 is only present if either egr_0 or - * egr_1 registers are non-zero. - */ - (egr_0 || egr_1) + - /* - * F11_2D_data10 is only present if EGR_PINCH or EGR_FLICK of - * egr_0 reports as 1. - */ - !!(has_pinch | has_flick) + - /* - * F11_2D_data11 and F11_2D_data12 are only present if - * EGR_FLICK of egr_0 reports as 1. - */ - 2 * !!(has_flick); - return retval; -} - -/** - * synaptics_rmi4_touchpad_config() - configures the rmi4 touchpad device - * @pdata: pointer to synaptics_rmi4_data structure - * @rfi: pointer to synaptics_rmi4_fn structure - * - * This function calls to configures the rmi4 touchpad device - */ -static int synaptics_rmi4_touchpad_config(struct synaptics_rmi4_data *pdata, - struct synaptics_rmi4_fn *rfi) -{ - /* - * For the data source - print info and do any - * source specific configuration. - */ - unsigned char data[BUF_LEN]; - int retval = 0; - struct i2c_client *client = pdata->i2c_client; - - /* Get and print some info about the data source... */ - /* To Query 2D devices we need to read from the address obtained - * from the function descriptor stored in the RMI function info. - */ - retval = synaptics_rmi4_i2c_block_read(pdata, - rfi->fn_desc.query_base_addr, - data, QUERY_LEN); - if (retval != QUERY_LEN) - dev_err(&client->dev, "%s:read query registers failed\n", - __func__); - else { - retval = synaptics_rmi4_i2c_block_read(pdata, - rfi->fn_desc.ctrl_base_addr, - data, DATA_BUF_LEN); - if (retval != DATA_BUF_LEN) { - dev_err(&client->dev, - "%s:read control registers failed\n", - __func__); - return retval; - } - /* Store these for use later*/ - pdata->sensor_max_x = ((data[6] & MASK_8BIT) << 0) | - ((data[7] & MASK_4BIT) << 8); - pdata->sensor_max_y = ((data[8] & MASK_5BIT) << 0) | - ((data[9] & MASK_4BIT) << 8); - } - return retval; -} - -/** - * synaptics_rmi4_i2c_query_device() - query the rmi4 device - * @pdata: pointer to synaptics_rmi4_data structure - * - * This function is used to query the rmi4 device. - */ -static int synaptics_rmi4_i2c_query_device(struct synaptics_rmi4_data *pdata) -{ - int i; - int retval; - unsigned char std_queries[STD_QUERY_LEN]; - unsigned char intr_count = 0; - int data_sources = 0; - unsigned int ctrl_offset; - struct synaptics_rmi4_fn *rfi; - struct synaptics_rmi4_fn_desc rmi_fd; - struct synaptics_rmi4_device_info *rmi; - struct i2c_client *client = pdata->i2c_client; - - /* - * init the physical drivers RMI module - * info list of functions - */ - INIT_LIST_HEAD(&pdata->rmi4_mod_info.support_fn_list); - - /* - * Read the Page Descriptor Table to determine what functions - * are present - */ - for (i = PDT_START_SCAN_LOCATION; i > PDT_END_SCAN_LOCATION; - i -= PDT_ENTRY_SIZE) { - retval = synaptics_rmi4_i2c_block_read(pdata, i, - (unsigned char *)&rmi_fd, - sizeof(rmi_fd)); - if (retval != sizeof(rmi_fd)) { - /* failed to read next PDT entry */ - dev_err(&client->dev, "%s: read error\n", __func__); - return -EIO; - } - rfi = NULL; - if (rmi_fd.fn_number) { - switch (rmi_fd.fn_number & MASK_8BIT) { - case SYNAPTICS_RMI4_DEVICE_CONTROL_FUNC_NUM: - pdata->fn01_query_base_addr = - rmi_fd.query_base_addr; - pdata->fn01_ctrl_base_addr = - rmi_fd.ctrl_base_addr; - pdata->fn01_data_base_addr = - rmi_fd.data_base_addr; - break; - case SYNAPTICS_RMI4_TOUCHPAD_FUNC_NUM: - if (rmi_fd.intr_src_count) { - rfi = kmalloc(sizeof(*rfi), - GFP_KERNEL); - if (!rfi) - return -ENOMEM; - retval = synpatics_rmi4_touchpad_detect - (pdata, rfi, - &rmi_fd, - intr_count); - if (retval < 0) { - kfree(rfi); - return retval; - } - } - break; - } - /* interrupt count for next iteration */ - intr_count += (rmi_fd.intr_src_count & MASK_3BIT); - /* - * We only want to add functions to the list - * that have data associated with them. - */ - if (rfi && rmi_fd.intr_src_count) { - /* link this function info to the RMI module */ - mutex_lock(&(pdata->fn_list_mutex)); - list_add_tail(&rfi->link, - &pdata->rmi4_mod_info.support_fn_list); - mutex_unlock(&(pdata->fn_list_mutex)); - } - } else { - /* - * A zero in the function number - * signals the end of the PDT - */ - dev_dbg(&client->dev, - "%s:end of PDT\n", __func__); - break; - } - } - /* - * calculate the interrupt register count - used in the - * ISR to read the correct number of interrupt registers - */ - pdata->number_of_interrupt_register = (intr_count + 7) / 8; - /* - * Function $01 will be used to query the product properties, - * and product ID so we had to read the PDT above first to get - * the Fn $01 query address and prior to filling in the product - * info. NOTE: Even an unflashed device will still have FN $01. - */ - - /* Load up the standard queries and get the RMI4 module info */ - retval = synaptics_rmi4_i2c_block_read(pdata, - pdata->fn01_query_base_addr, - std_queries, - sizeof(std_queries)); - if (retval != sizeof(std_queries)) { - dev_err(&client->dev, "%s:Failed reading queries\n", - __func__); - return -EIO; - } - - /* Currently supported RMI version is 4.0 */ - pdata->rmi4_mod_info.version_major = 4; - pdata->rmi4_mod_info.version_minor = 0; - /* - * get manufacturer id, product_props, product info, - * date code, tester id, serial num and product id (name) - */ - pdata->rmi4_mod_info.manufacturer_id = std_queries[0]; - pdata->rmi4_mod_info.product_props = std_queries[1]; - pdata->rmi4_mod_info.product_info[0] = std_queries[2]; - pdata->rmi4_mod_info.product_info[1] = std_queries[3]; - /* year - 2001-2032 */ - pdata->rmi4_mod_info.date_code[0] = std_queries[4] & MASK_5BIT; - /* month - 1-12 */ - pdata->rmi4_mod_info.date_code[1] = std_queries[5] & MASK_4BIT; - /* day - 1-31 */ - pdata->rmi4_mod_info.date_code[2] = std_queries[6] & MASK_5BIT; - pdata->rmi4_mod_info.tester_id = ((std_queries[7] & MASK_7BIT) << 8) | - (std_queries[8] & MASK_7BIT); - pdata->rmi4_mod_info.serial_number = - ((std_queries[9] & MASK_7BIT) << 8) | - (std_queries[10] & MASK_7BIT); - memcpy(pdata->rmi4_mod_info.product_id_string, &std_queries[11], 10); - - /* Check if this is a Synaptics device - report if not. */ - if (pdata->rmi4_mod_info.manufacturer_id != 1) - dev_err(&client->dev, "non-Synaptics mfg id:%d\n", - pdata->rmi4_mod_info.manufacturer_id); - - list_for_each_entry(rfi, &pdata->rmi4_mod_info.support_fn_list, link) - data_sources += rfi->num_of_data_sources; - if (data_sources) { - rmi = &(pdata->rmi4_mod_info); - list_for_each_entry(rfi, &rmi->support_fn_list, link) { - if (rfi->num_of_data_sources) { - if (rfi->fn_number == - SYNAPTICS_RMI4_TOUCHPAD_FUNC_NUM) { - retval = synaptics_rmi4_touchpad_config - (pdata, rfi); - if (retval < 0) - return retval; - } else - dev_err(&client->dev, - "%s:fn_number not supported\n", - __func__); - /* - * Turn on interrupts for this - * function's data sources. - */ - ctrl_offset = pdata->fn01_ctrl_base_addr + 1 + - rfi->index_to_intr_reg; - retval = synaptics_rmi4_i2c_byte_write(pdata, - ctrl_offset, - rfi->intr_mask); - if (retval < 0) - return retval; - } - } - } - return 0; -} - -/* - * Descriptor structure. - * Describes the number of i2c devices on the bus that speak RMI. - */ -static const struct synaptics_rmi4_platform_data synaptics_rmi4_platformdata = { - .irq_type = (IRQF_TRIGGER_FALLING | IRQF_SHARED), - .x_flip = false, - .y_flip = true, -}; - -/** - * synaptics_rmi4_probe() - Initialze the i2c-client touchscreen driver - * @i2c: i2c client structure pointer - * @id:i2c device id pointer - * - * This function will allocate and initialize the instance - * data and request the irq and set the instance data as the clients - * platform data then register the physical driver which will do a scan of - * the rmi4 Physical Device Table and enumerate any rmi4 functions that - * have data sources associated with them. - */ -static int synaptics_rmi4_probe - (struct i2c_client *client, const struct i2c_device_id *dev_id) -{ - int retval; - unsigned char intr_status[4]; - struct synaptics_rmi4_data *rmi4_data; - const struct synaptics_rmi4_platform_data *platformdata = - client->dev.platform_data; - - if (!i2c_check_functionality(client->adapter, - I2C_FUNC_SMBUS_BYTE_DATA)) { - dev_err(&client->dev, "i2c smbus byte data not supported\n"); - return -EIO; - } - - if (!platformdata) - platformdata = &synaptics_rmi4_platformdata; - - /* Allocate and initialize the instance data for this client */ - rmi4_data = kcalloc(2, sizeof(struct synaptics_rmi4_data), - GFP_KERNEL); - if (!rmi4_data) - return -ENOMEM; - - rmi4_data->input_dev = input_allocate_device(); - if (!rmi4_data->input_dev) { - retval = -ENOMEM; - goto err_input; - } - - rmi4_data->regulator = regulator_get(&client->dev, "vdd"); - if (IS_ERR(rmi4_data->regulator)) { - dev_err(&client->dev, "%s:get regulator failed\n", - __func__); - retval = PTR_ERR(rmi4_data->regulator); - goto err_get_regulator; - } - retval = regulator_enable(rmi4_data->regulator); - if (retval < 0) { - dev_err(&client->dev, "%s:regulator enable failed\n", - __func__); - goto err_regulator_enable; - } - init_waitqueue_head(&rmi4_data->wait); - /* - * Copy i2c_client pointer into RTID's i2c_client pointer for - * later use in rmi4_read, rmi4_write, etc. - */ - rmi4_data->i2c_client = client; - /* So we set the page correctly the first time */ - rmi4_data->current_page = MASK_16BIT; - rmi4_data->board = platformdata; - rmi4_data->touch_stopped = false; - - /* init the mutexes for maintain the lists */ - mutex_init(&(rmi4_data->fn_list_mutex)); - mutex_init(&(rmi4_data->rmi4_page_mutex)); - - /* - * Register physical driver - this will call the detect function that - * will then scan the device and determine the supported - * rmi4 functions. - */ - retval = synaptics_rmi4_i2c_query_device(rmi4_data); - if (retval) { - dev_err(&client->dev, "%s: rmi4 query device failed\n", - __func__); - goto err_query_dev; - } - - /* Store the instance data in the i2c_client */ - i2c_set_clientdata(client, rmi4_data); - - /*initialize the input device parameters */ - rmi4_data->input_dev->name = DRIVER_NAME; - rmi4_data->input_dev->phys = "Synaptics_Clearpad"; - rmi4_data->input_dev->id.bustype = BUS_I2C; - rmi4_data->input_dev->dev.parent = &client->dev; - input_set_drvdata(rmi4_data->input_dev, rmi4_data); - - /* Initialize the function handlers for rmi4 */ - set_bit(EV_SYN, rmi4_data->input_dev->evbit); - set_bit(EV_KEY, rmi4_data->input_dev->evbit); - set_bit(EV_ABS, rmi4_data->input_dev->evbit); - - input_set_abs_params(rmi4_data->input_dev, ABS_MT_POSITION_X, 0, - rmi4_data->sensor_max_x, 0, 0); - input_set_abs_params(rmi4_data->input_dev, ABS_MT_POSITION_Y, 0, - 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, 0); - - /* Clear interrupts */ - synaptics_rmi4_i2c_block_read(rmi4_data, - rmi4_data->fn01_data_base_addr + 1, intr_status, - rmi4_data->number_of_interrupt_register); - retval = request_threaded_irq(client->irq, NULL, - synaptics_rmi4_irq, - platformdata->irq_type, - DRIVER_NAME, rmi4_data); - if (retval) { - dev_err(&client->dev, "Unable to get attn irq %d\n", - client->irq); - goto err_query_dev; - } - - retval = input_register_device(rmi4_data->input_dev); - if (retval) { - dev_err(&client->dev, "%s:input register failed\n", __func__); - goto err_free_irq; - } - - return retval; - -err_free_irq: - free_irq(client->irq, rmi4_data); -err_query_dev: - regulator_disable(rmi4_data->regulator); -err_regulator_enable: - regulator_put(rmi4_data->regulator); -err_get_regulator: - input_free_device(rmi4_data->input_dev); - rmi4_data->input_dev = NULL; -err_input: - kfree(rmi4_data); - - return retval; -} -/** - * synaptics_rmi4_remove() - Removes the i2c-client touchscreen driver - * @client: i2c client structure pointer - * - * This function uses to remove the i2c-client - * touchscreen driver and returns integer. - */ -static int synaptics_rmi4_remove(struct i2c_client *client) -{ - struct synaptics_rmi4_data *rmi4_data = i2c_get_clientdata(client); - - rmi4_data->touch_stopped = true; - wake_up(&rmi4_data->wait); - free_irq(client->irq, rmi4_data); - input_unregister_device(rmi4_data->input_dev); - regulator_disable(rmi4_data->regulator); - regulator_put(rmi4_data->regulator); - kfree(rmi4_data); - - return 0; -} - -/** - * synaptics_rmi4_suspend() - suspend the touch screen controller - * @dev: pointer to device structure - * - * This function is used to suspend the - * touch panel controller and returns integer - */ -static int __maybe_unused synaptics_rmi4_suspend(struct device *dev) -{ - /* Touch sleep mode */ - int retval; - unsigned char intr_status; - struct synaptics_rmi4_data *rmi4_data = dev_get_drvdata(dev); - - rmi4_data->touch_stopped = true; - disable_irq(rmi4_data->i2c_client->irq); - - retval = synaptics_rmi4_i2c_block_read(rmi4_data, - rmi4_data->fn01_data_base_addr + 1, - &intr_status, - rmi4_data->number_of_interrupt_register); - if (retval < 0) - return retval; - - retval = synaptics_rmi4_i2c_byte_write(rmi4_data, - rmi4_data->fn01_ctrl_base_addr + 1, - (intr_status & ~TOUCHPAD_CTRL_INTR)); - if (retval < 0) - return retval; - - regulator_disable(rmi4_data->regulator); - - return 0; -} -/** - * synaptics_rmi4_resume() - resume the touch screen controller - * @dev: pointer to device structure - * - * This function is used to resume the touch panel - * controller and returns integer. - */ -static int __maybe_unused synaptics_rmi4_resume(struct device *dev) -{ - int retval; - unsigned char intr_status; - struct synaptics_rmi4_data *rmi4_data = dev_get_drvdata(dev); - - retval = regulator_enable(rmi4_data->regulator); - if (retval) { - dev_err(dev, "Regulator enable failed (%d)\n", retval); - return retval; - } - - enable_irq(rmi4_data->i2c_client->irq); - rmi4_data->touch_stopped = false; - - retval = synaptics_rmi4_i2c_block_read(rmi4_data, - rmi4_data->fn01_data_base_addr + 1, - &intr_status, - rmi4_data->number_of_interrupt_register); - if (retval < 0) - return retval; - - retval = synaptics_rmi4_i2c_byte_write(rmi4_data, - rmi4_data->fn01_ctrl_base_addr + 1, - (intr_status | TOUCHPAD_CTRL_INTR)); - if (retval < 0) - return retval; - - return 0; -} - -static SIMPLE_DEV_PM_OPS(synaptics_rmi4_dev_pm_ops, synaptics_rmi4_suspend, - synaptics_rmi4_resume); - -static const struct i2c_device_id synaptics_rmi4_id_table[] = { - { DRIVER_NAME, 0 }, - { }, -}; -MODULE_DEVICE_TABLE(i2c, synaptics_rmi4_id_table); - -static struct i2c_driver synaptics_rmi4_driver = { - .driver = { - .name = DRIVER_NAME, - .pm = &synaptics_rmi4_dev_pm_ops, - }, - .probe = synaptics_rmi4_probe, - .remove = synaptics_rmi4_remove, - .id_table = synaptics_rmi4_id_table, -}; - -module_i2c_driver(synaptics_rmi4_driver); - -MODULE_LICENSE("GPL v2"); -MODULE_AUTHOR("naveen.gaddipati@stericsson.com, js.ha@stericsson.com"); -MODULE_DESCRIPTION("synaptics rmi4 i2c touch Driver"); diff --git a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.h b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.h deleted file mode 100644 index 8c9166ba71c7..000000000000 --- a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.h +++ /dev/null @@ -1,46 +0,0 @@ -/** - * - * Synaptics Register Mapped Interface (RMI4) I2C Physical Layer Driver. - * Copyright (c) 2007-2010, Synaptics Incorporated - * - * Author: Js HA for ST-Ericsson - * Author: Naveen Kumar G for ST-Ericsson - * Copyright 2010 (c) ST-Ericsson AB - */ -/* - * This file is licensed under the GPL2 license. - * - *############################################################################# - * GPL - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - * - *############################################################################# - */ - -#ifndef _SYNAPTICS_RMI4_H_INCLUDED_ -#define _SYNAPTICS_RMI4_H_INCLUDED_ - -/** - * struct synaptics_rmi4_platform_data - contains the rmi4 platform data - * @irq_number: irq number - * @irq_type: irq type - * @x flip: x flip flag - * @y flip: y flip flag - * - * This structure gives platform data for rmi4. - */ -struct synaptics_rmi4_platform_data { - int irq_type; - bool x_flip; - bool y_flip; -}; - -#endif