| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Joonyoung Shim | 981 | 86.58% | 2 | 20.00% |
| Beomho Seo | 96 | 8.47% | 2 | 20.00% |
| Mark Brown | 38 | 3.35% | 1 | 10.00% |
| Jingoo Han | 7 | 0.62% | 1 | 10.00% |
| Wolfram Sang | 4 | 0.35% | 1 | 10.00% |
| Tejun Heo | 3 | 0.26% | 1 | 10.00% |
| Axel Lin | 2 | 0.18% | 1 | 10.00% |
| Fabio Estevam | 2 | 0.18% | 1 | 10.00% |
| Total | 1133 | 10 |
/* * mcs5000_ts.c - Touchscreen driver for MELFAS MCS-5000 controller * * Copyright (C) 2009 Samsung Electronics Co.Ltd * Author: Joonyoung Shim <jy0922.shim@samsung.com> * * Based on wm97xx-core.c * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * */ #include <linux/module.h> #include <linux/i2c.h> #include <linux/interrupt.h> #include <linux/input.h> #include <linux/irq.h> #include <linux/platform_data/mcs.h> #include <linux/slab.h> /* Registers */ #define MCS5000_TS_STATUS 0x00 #define STATUS_OFFSET 0 #define STATUS_NO (0 << STATUS_OFFSET) #define STATUS_INIT (1 << STATUS_OFFSET) #define STATUS_SENSING (2 << STATUS_OFFSET) #define STATUS_COORD (3 << STATUS_OFFSET) #define STATUS_GESTURE (4 << STATUS_OFFSET) #define ERROR_OFFSET 4 #define ERROR_NO (0 << ERROR_OFFSET) #define ERROR_POWER_ON_RESET (1 << ERROR_OFFSET) #define ERROR_INT_RESET (2 << ERROR_OFFSET) #define ERROR_EXT_RESET (3 << ERROR_OFFSET) #define ERROR_INVALID_REG_ADDRESS (8 << ERROR_OFFSET) #define ERROR_INVALID_REG_VALUE (9 << ERROR_OFFSET) #define MCS5000_TS_OP_MODE 0x01 #define RESET_OFFSET 0 #define RESET_NO (0 << RESET_OFFSET) #define RESET_EXT_SOFT (1 << RESET_OFFSET) #define OP_MODE_OFFSET 1 #define OP_MODE_SLEEP (0 << OP_MODE_OFFSET) #define OP_MODE_ACTIVE (1 << OP_MODE_OFFSET) #define GESTURE_OFFSET 4 #define GESTURE_DISABLE (0 << GESTURE_OFFSET) #define GESTURE_ENABLE (1 << GESTURE_OFFSET) #define PROXIMITY_OFFSET 5 #define PROXIMITY_DISABLE (0 << PROXIMITY_OFFSET) #define PROXIMITY_ENABLE (1 << PROXIMITY_OFFSET) #define SCAN_MODE_OFFSET 6 #define SCAN_MODE_INTERRUPT (0 << SCAN_MODE_OFFSET) #define SCAN_MODE_POLLING (1 << SCAN_MODE_OFFSET) #define REPORT_RATE_OFFSET 7 #define REPORT_RATE_40 (0 << REPORT_RATE_OFFSET) #define REPORT_RATE_80 (1 << REPORT_RATE_OFFSET) #define MCS5000_TS_SENS_CTL 0x02 #define MCS5000_TS_FILTER_CTL 0x03 #define PRI_FILTER_OFFSET 0 #define SEC_FILTER_OFFSET 4 #define MCS5000_TS_X_SIZE_UPPER 0x08 #define MCS5000_TS_X_SIZE_LOWER 0x09 #define MCS5000_TS_Y_SIZE_UPPER 0x0A #define MCS5000_TS_Y_SIZE_LOWER 0x0B #define MCS5000_TS_INPUT_INFO 0x10 #define INPUT_TYPE_OFFSET 0 #define INPUT_TYPE_NONTOUCH (0 << INPUT_TYPE_OFFSET) #define INPUT_TYPE_SINGLE (1 << INPUT_TYPE_OFFSET) #define INPUT_TYPE_DUAL (2 << INPUT_TYPE_OFFSET) #define INPUT_TYPE_PALM (3 << INPUT_TYPE_OFFSET) #define INPUT_TYPE_PROXIMITY (7 << INPUT_TYPE_OFFSET) #define GESTURE_CODE_OFFSET 3 #define GESTURE_CODE_NO (0 << GESTURE_CODE_OFFSET) #define MCS5000_TS_X_POS_UPPER 0x11 #define MCS5000_TS_X_POS_LOWER 0x12 #define MCS5000_TS_Y_POS_UPPER 0x13 #define MCS5000_TS_Y_POS_LOWER 0x14 #define MCS5000_TS_Z_POS 0x15 #define MCS5000_TS_WIDTH 0x16 #define MCS5000_TS_GESTURE_VAL 0x17 #define MCS5000_TS_MODULE_REV 0x20 #define MCS5000_TS_FIRMWARE_VER 0x21 /* Touchscreen absolute values */ #define MCS5000_MAX_XC 0x3ff #define MCS5000_MAX_YC 0x3ff enum mcs5000_ts_read_offset { READ_INPUT_INFO, READ_X_POS_UPPER, READ_X_POS_LOWER, READ_Y_POS_UPPER, READ_Y_POS_LOWER, READ_BLOCK_SIZE, }; /* Each client has this additional data */ struct mcs5000_ts_data { struct i2c_client *client; struct input_dev *input_dev; const struct mcs_platform_data *platform_data; }; static irqreturn_t mcs5000_ts_interrupt(int irq, void *dev_id) { struct mcs5000_ts_data *data = dev_id; struct i2c_client *client = data->client; u8 buffer[READ_BLOCK_SIZE]; int err; int x; int y; err = i2c_smbus_read_i2c_block_data(client, MCS5000_TS_INPUT_INFO, READ_BLOCK_SIZE, buffer); if (err < 0) { dev_err(&client->dev, "%s, err[%d]\n", __func__, err); goto out; } switch (buffer[READ_INPUT_INFO]) { case INPUT_TYPE_NONTOUCH: input_report_key(data->input_dev, BTN_TOUCH, 0); input_sync(data->input_dev); break; case INPUT_TYPE_SINGLE: x = (buffer[READ_X_POS_UPPER] << 8) | buffer[READ_X_POS_LOWER]; y = (buffer[READ_Y_POS_UPPER] << 8) | buffer[READ_Y_POS_LOWER]; input_report_key(data->input_dev, BTN_TOUCH, 1); input_report_abs(data->input_dev, ABS_X, x); input_report_abs(data->input_dev, ABS_Y, y); input_sync(data->input_dev); break; case INPUT_TYPE_DUAL: /* TODO */ break; case INPUT_TYPE_PALM: /* TODO */ break; case INPUT_TYPE_PROXIMITY: /* TODO */ break; default: dev_err(&client->dev, "Unknown ts input type %d\n", buffer[READ_INPUT_INFO]); break; } out: return IRQ_HANDLED; } static void mcs5000_ts_phys_init(struct mcs5000_ts_data *data, const struct mcs_platform_data *platform_data) { struct i2c_client *client = data->client; /* Touch reset & sleep mode */ i2c_smbus_write_byte_data(client, MCS5000_TS_OP_MODE, RESET_EXT_SOFT | OP_MODE_SLEEP); /* Touch size */ i2c_smbus_write_byte_data(client, MCS5000_TS_X_SIZE_UPPER, platform_data->x_size >> 8); i2c_smbus_write_byte_data(client, MCS5000_TS_X_SIZE_LOWER, platform_data->x_size & 0xff); i2c_smbus_write_byte_data(client, MCS5000_TS_Y_SIZE_UPPER, platform_data->y_size >> 8); i2c_smbus_write_byte_data(client, MCS5000_TS_Y_SIZE_LOWER, platform_data->y_size & 0xff); /* Touch active mode & 80 report rate */ i2c_smbus_write_byte_data(data->client, MCS5000_TS_OP_MODE, OP_MODE_ACTIVE | REPORT_RATE_80); } static int mcs5000_ts_probe(struct i2c_client *client, const struct i2c_device_id *id) { const struct mcs_platform_data *pdata; struct mcs5000_ts_data *data; struct input_dev *input_dev; int error; pdata = dev_get_platdata(&client->dev); if (!pdata) return -EINVAL; data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); if (!data) { dev_err(&client->dev, "Failed to allocate memory\n"); return -ENOMEM; } data->client = client; input_dev = devm_input_allocate_device(&client->dev); if (!input_dev) { dev_err(&client->dev, "Failed to allocate input device\n"); return -ENOMEM; } input_dev->name = "MELFAS MCS-5000 Touchscreen"; input_dev->id.bustype = BUS_I2C; input_dev->dev.parent = &client->dev; __set_bit(EV_ABS, input_dev->evbit); __set_bit(EV_KEY, input_dev->evbit); __set_bit(BTN_TOUCH, input_dev->keybit); input_set_abs_params(input_dev, ABS_X, 0, MCS5000_MAX_XC, 0, 0); input_set_abs_params(input_dev, ABS_Y, 0, MCS5000_MAX_YC, 0, 0); data->input_dev = input_dev; if (pdata->cfg_pin) pdata->cfg_pin(); error = devm_request_threaded_irq(&client->dev, client->irq, NULL, mcs5000_ts_interrupt, IRQF_TRIGGER_LOW | IRQF_ONESHOT, "mcs5000_ts", data); if (error) { dev_err(&client->dev, "Failed to register interrupt\n"); return error; } error = input_register_device(data->input_dev); if (error) { dev_err(&client->dev, "Failed to register input device\n"); return error; } mcs5000_ts_phys_init(data, pdata); i2c_set_clientdata(client, data); return 0; } static int __maybe_unused mcs5000_ts_suspend(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); /* Touch sleep mode */ i2c_smbus_write_byte_data(client, MCS5000_TS_OP_MODE, OP_MODE_SLEEP); return 0; } static int __maybe_unused mcs5000_ts_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct mcs5000_ts_data *data = i2c_get_clientdata(client); const struct mcs_platform_data *pdata = dev_get_platdata(dev); mcs5000_ts_phys_init(data, pdata); return 0; } static SIMPLE_DEV_PM_OPS(mcs5000_ts_pm, mcs5000_ts_suspend, mcs5000_ts_resume); static const struct i2c_device_id mcs5000_ts_id[] = { { "mcs5000_ts", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, mcs5000_ts_id); static struct i2c_driver mcs5000_ts_driver = { .probe = mcs5000_ts_probe, .driver = { .name = "mcs5000_ts", .pm = &mcs5000_ts_pm, }, .id_table = mcs5000_ts_id, }; module_i2c_driver(mcs5000_ts_driver); /* Module information */ MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>"); MODULE_DESCRIPTION("Touchscreen driver for MELFAS MCS-5000 controller"); MODULE_LICENSE("GPL");
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