Index: linux-2.6.29/drivers/input/misc/Kconfig =================================================================== --- linux-2.6.29.orig/drivers/input/misc/Kconfig 2009-03-24 00:12:14.000000000 +0100 +++ linux-2.6.29/drivers/input/misc/Kconfig 2009-04-01 17:38:02.000000000 +0200 @@ -227,4 +227,13 @@ Say Y to include support for delivering PMU events via input layer on NXP PCF50633. +config INPUT_CAPSENSE_BTNS + tristate "CAPSENSE CY8C201xx buttons interface" + select INPUT_POLLDEV + select LEDS_CLASS + help + To compile this driver as a module, choose M here: + the module will be called capsense-btns. + To change poll interval, invoque poll parameter in msecs. + endif Index: linux-2.6.29/drivers/input/misc/Makefile =================================================================== --- linux-2.6.29.orig/drivers/input/misc/Makefile 2009-03-24 00:12:14.000000000 +0100 +++ linux-2.6.29/drivers/input/misc/Makefile 2009-04-01 17:38:23.000000000 +0200 @@ -22,3 +22,4 @@ obj-$(CONFIG_INPUT_APANEL) += apanel.o obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o obj-$(CONFIG_INPUT_PCF50633_PMU) += pcf50633-input.o +obj-$(CONFIG_INPUT_CAPSENSE_BTNS) += capsense-btns.o Index: linux-2.6.29/drivers/input/misc/capsense-btns.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux-2.6.29/drivers/input/misc/capsense-btns.c 2009-04-01 17:38:02.000000000 +0200 @@ -0,0 +1,456 @@ +/* + * CAPSENSE Interface driver + * + * + * Copyright (C) 2008, CenoSYS (www.cenosys.com). + * + * Guillaume Ligneul + * Jeremy Lainé + * Sylvain Giroudon + * + * This software program is licensed subject to the GNU General Public License + * (GPL).Version 2,June 1991, available at http://www.fsf.org/copyleft/gpl.html + */ + +#include +#include +#include +#include +#include +#include + + +static int capsense_attach_adapter(struct i2c_adapter *adapter); +static int capsense_detach_client(struct i2c_client *client); +#ifdef CONFIG_PM +static int capsense_suspend(struct i2c_client *client, pm_message_t mesg); +static int capsense_resume(struct i2c_client *client); +#endif + +#define DRIVER_NAME "capsense" + +/* i2c configuration */ +#define CAPSENSE_I2C_ADDR 0x25 +// To debug (may be add in include/linux/i2c-id.h) +#define I2C_DRIVERID_CAPSENSE 98 + +#define BUTTONS_POLL_INTERVAL 30 /* msec */ + +#define CAP_INPUT_PORT(port) (0x00+(port)) +#define CAP_STATUS_PORT(port) (0x02+(port)) +#define CAP_OUTPUT_PORT(port) (0x04+(port)) +#define CAP_CS_ENABLE(port) (0x06+(port)) +#define CAP_GPIO_ENABLE(port) (0x08+(port)) +#define CAP_INVERSION_MASK(port) (0x0A+(port)) +#define CAP_INT_MASK(port) (0x0C+(port)) +#define CAP_STATUS_HOLD_MSK(port) (0x0E+(port)) +#define CAP_DM_PULL_UP(port) (0x10+(4*(port))) +#define CAP_DM_STRONG(port) (0x11+(4*(port))) +#define CAP_DM_HIGHZ(port) (0x12+(4*(port))) +#define CAP_OD_LOW(port) (0x13+(4*(port))) +#define CAP_PWM_ENABLE(port) (0x18+(port)) +#define CAP_PWM_MODE_DC 0x1A +#define CAP_PWM_DELAY 0x1B +#define CAP_OP_SEL(port,bit) (0x1C+(25*(port))+(5*(bit))) +#define CAP_READ_STATUS(port) (0x88+(port)) + +#define CAP_CS(command,port,bit) ((command)+(5*(port))+(bit)) +#define CAP_CS_FINGER_TH(port,bit) CAP_CS(0x61,port,bit) +#define CAP_CS_IDAC(port,bit) CAP_CS(0x6B,port,bit) + +#define CAP_DEVICE_ID 0x7A +#define CAP_DEVICE_STATUS 0x7B +#define CAP_I2C_ADDR_DM 0x7C + +#define CAP_COMMAND_REG 0xA0 +#define CAP_COMMAND_STORE_NVM 0x01 +#define CAP_COMMAND_RESTORE_FACTORY 0x02 +#define CAP_COMMAND_RECONFIGURE 0x06 +#define CAP_COMMAND_NORMAL_MODE 0x07 +#define CAP_COMMAND_SETUP_MODE 0x08 + +#define CAP_NLEDS 5 + +static int poll_interval = BUTTONS_POLL_INTERVAL; +module_param_named(poll, poll_interval, uint, 0); +MODULE_PARM_DESC(poll, "poll interval in msec (30=default)"); + +static const unsigned short normal_i2c[] = { + CAPSENSE_I2C_ADDR , I2C_CLIENT_END +}; +I2C_CLIENT_INSMOD; + +static struct i2c_driver capsense_driver = { + .driver = { + .name = DRIVER_NAME, + }, + .id = I2C_DRIVERID_CAPSENSE, + .attach_adapter = &capsense_attach_adapter, + .detach_client = &capsense_detach_client, +#ifdef CONFIG_PM + .suspend = &capsense_suspend, + .resume = &capsense_resume, +#endif +}; + +struct capsense_led { + struct led_classdev cdev; + struct capsense_ctx *capsense; + int port; + int bit; +}; + +struct capsense_ctx { + struct input_polled_dev *ipdev; + struct i2c_client client; + unsigned char key_state; + struct capsense_led leds[CAP_NLEDS]; + unsigned char led_state[2]; + struct mutex mutex; +}; + +static unsigned short input_keymap[] = { + // GP0 + KEY_F1, + KEY_ENTER, + KEY_DOWN, + KEY_BACKSPACE, + // GP1 + KEY_UP, +}; + +struct capsense_keymap { + char *name; + int port, bit; +}; + +static struct capsense_keymap phys_keymap[] = { + { "info", 0, 4 }, + { "ok", 0, 2 }, + { "down", 0, 3 }, + { "back", 0, 0 }, + { "up", 1, 4 }, +}; + + +struct capsense_ledmap { + char *name; + int port, bit; +}; + +static struct capsense_ledmap ledmap[CAP_NLEDS] = { + { "capsense:blue:back", 0, 1 }, + { "capsense:blue:info", 1, 0 }, + { "capsense:blue:down", 1, 1 }, + { "capsense:blue:ok", 1, 2 }, + { "capsense:blue:up", 1, 3 }, +}; + + +/* + * Buttons events handling + */ + +static void handle_buttons(struct input_polled_dev *dev) +{ + struct capsense_ctx *capsense = dev->private; + u8 port_value; + u8 new_state = 0; + int port; + u8 changed; + int i; + + mutex_lock(&capsense->mutex); + + // read status + port = -1; + port_value = 0; + for (i = 0; i < ARRAY_SIZE(phys_keymap); i++) { + if ( phys_keymap[i].port != port ) { + port = phys_keymap[i].port; + port_value = i2c_smbus_read_byte_data(&capsense->client, CAP_READ_STATUS(port)); + } + + if ( port_value & (1 << phys_keymap[i].bit) ) + new_state |= (1 << i); + } + + mutex_unlock(&capsense->mutex); + + // update keyboard state + changed = capsense->key_state ^ new_state; + for (i = 0; i < ARRAY_SIZE(input_keymap); i++) + if (changed & (1 << i)) + input_report_key(dev->input, input_keymap[i], (new_state & (1 << i))); + capsense->key_state = new_state; + input_sync(dev->input); +} + + +/* + * LEDs management + */ + +static void +capsense_led_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + struct capsense_led *led = (struct capsense_led *) led_cdev; + struct capsense_ctx *capsense = led->capsense; + int port = led->port; + unsigned char mask = (1 << led->bit); + + if ( value ) + capsense->led_state[port] |= mask; + else + capsense->led_state[port] &= ~mask; + + mutex_lock(&capsense->mutex); + i2c_smbus_write_byte_data(&capsense->client, CAP_OUTPUT_PORT(port), capsense->led_state[port]); + mutex_unlock(&capsense->mutex); +} + +static void +capsense_led_enable(struct capsense_led *led, int state) +{ + struct capsense_ctx *capsense = led->capsense; + + mutex_lock(&capsense->mutex); + i2c_smbus_write_byte_data(&capsense->client, CAP_OP_SEL(led->port, led->bit), state ? 0x00 : 0x80); + mutex_unlock(&capsense->mutex); +} + +static int +capsense_led_init(struct capsense_ctx *capsense) +{ + int i; + int ret; + + for (i = 0; i < CAP_NLEDS; i++) { + struct capsense_led *led = &(capsense->leds[i]); + + led->cdev.name = ledmap[i].name; + led->cdev.brightness_set = capsense_led_set; + led->capsense = capsense; + led->port = ledmap[i].port; + led->bit = ledmap[i].bit; + + ret = led_classdev_register(&capsense->ipdev->input->dev, &led->cdev); + if ( ret < 0 ) + return -1; + + capsense_led_enable(led, 1); + } + + /* Switch all leds off */ + mutex_lock(&capsense->mutex); + + capsense->led_state[0] = 0x00; + i2c_smbus_write_byte_data(&capsense->client, CAP_OUTPUT_PORT(0), 0x00); + + capsense->led_state[1] = 0x00; + i2c_smbus_write_byte_data(&capsense->client, CAP_OUTPUT_PORT(1), 0x00); + + mutex_unlock(&capsense->mutex); + + return 0; +} + + +static void +capsense_led_exit(struct capsense_ctx *capsense) +{ + int i; + + for (i = 0; i < CAP_NLEDS; i++) { + led_classdev_unregister(&capsense->leds[i].cdev); + } +} + + +static inline void +capsense_led_suspend(struct capsense_ctx *capsense) +{ + int i; + + for (i = 0; i < CAP_NLEDS; i++) { + struct capsense_led *led = &(capsense->leds[i]); + + led_classdev_suspend(&led->cdev); + capsense_led_enable(led, 0); + } +} + + +static inline void +capsense_led_resume(struct capsense_ctx *capsense) +{ + int i; + + for (i = 0; i < CAP_NLEDS; i++) { + struct capsense_led *led = &(capsense->leds[i]); + + capsense_led_enable(led, 1); + led_classdev_resume(&led->cdev); + } +} + + +/* + * Device configuration through procfs entries + */ + +#ifdef CONFIG_PROC_FS +#include "capsense-procfs.c" +#endif + + +/* + * Device initialisation + */ + +static int +capsense_probe(struct i2c_adapter *adapter, int addr, int kind) +{ + struct capsense_ctx *capsense; + struct input_polled_dev *ipdev; + struct input_dev *input; + int rc = 0, err = -ENOMEM, i=0; + + capsense = kzalloc(sizeof(*capsense), GFP_KERNEL); + if (!capsense) + goto failout; + + mutex_init(&capsense->mutex); + + if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) { + goto failout; + } + + ipdev = input_allocate_polled_device(); + if (!ipdev) + goto failout; + + capsense->key_state = 0; + capsense->ipdev = ipdev; + capsense->client.adapter = adapter; + capsense->client.addr = addr; + capsense->client.driver = &capsense_driver; + strlcpy(capsense->client.name, DRIVER_NAME, I2C_NAME_SIZE); + i2c_set_clientdata(&capsense->client, capsense); + + rc = i2c_attach_client(&capsense->client); + if (rc) + goto out_attach; + + ipdev->poll = handle_buttons; + ipdev->private = capsense; + ipdev->poll_interval = poll_interval; + + input = ipdev->input; + input->name = "Capsense buttons"; + input->phys = "capsense/input0"; + input->id.bustype = BUS_I2C; + input->dev.parent = &capsense->client.dev; + + input->keycode = input_keymap; + input->keycodemax = ARRAY_SIZE(input_keymap); + input->keycodesize = sizeof(unsigned short); + + input_set_capability(input, EV_MSC, MSC_SCAN); + set_bit(EV_KEY, ipdev->input->evbit); + + for (i = 0; i < ARRAY_SIZE(input_keymap); i++) + set_bit(input_keymap[i], ipdev->input->keybit); + + rc = input_register_polled_device(ipdev); + if(rc) + goto out_polled; + + if ( capsense_led_init(capsense) ) + goto out_registered; + +#ifdef CONFIG_PROC_FS + /* Create /proc entries for hardware device configuration */ + capsense_proc_init(capsense); +#endif + + return 0; + +out_registered: + input_unregister_polled_device(ipdev); +out_polled: + i2c_detach_client(&capsense->client); +out_attach: + input_free_polled_device(ipdev); +failout: + return err; +} + +static int +capsense_attach_adapter (struct i2c_adapter *adapter) +{ + return i2c_probe(adapter, &addr_data, capsense_probe); +} + +static int +capsense_detach_client(struct i2c_client *client) +{ + struct capsense_ctx *capsense = i2c_get_clientdata(client); + + capsense_led_exit(capsense); + input_unregister_polled_device(capsense->ipdev); + i2c_detach_client(&capsense->client); + input_free_polled_device(capsense->ipdev); + return 0; +} + + +/* + * Power management + */ + +#ifdef CONFIG_PM +static int capsense_suspend(struct i2c_client *client, pm_message_t mesg) +{ + struct capsense_ctx *capsense = i2c_get_clientdata(client); + + printk(KERN_INFO DRIVER_NAME ": suspend\n"); + + capsense_led_suspend(capsense); + + return 0; +} + +static int capsense_resume(struct i2c_client *client) +{ + struct capsense_ctx *capsense = i2c_get_clientdata(client); + + printk(KERN_INFO DRIVER_NAME ": resume\n"); + + capsense_led_resume(capsense); + + return 0; +} +#endif + + +/* + * Driver initialisation + */ + +static int __init capsense_buttons_init(void) +{ + return i2c_add_driver(&capsense_driver); +} + +static void __exit capsense_buttons_exit(void) +{ + i2c_del_driver(&capsense_driver); +} + +MODULE_AUTHOR("Guillaume Ligneul "); +MODULE_DESCRIPTION("Capsense CY8C201xx Input driver"); +MODULE_LICENSE("GPL"); +module_init(capsense_buttons_init); +module_exit(capsense_buttons_exit); Index: linux-2.6.29/drivers/input/misc/capsense-procfs.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux-2.6.29/drivers/input/misc/capsense-procfs.c 2009-04-01 17:38:02.000000000 +0200 @@ -0,0 +1,390 @@ +/* + * CAPSENSE Interface driver + * Device setup using procfs + * + * Copyright (C) 2008, Goobie (www.goobie.fr). + * + * Sylvain Giroudon + * + * This software program is licensed subject to the GNU General Public License + * (GPL).Version 2,June 1991, available at http://www.fsf.org/copyleft/gpl.html + */ + +#include +#include + + +struct capsense_proc_data { + struct capsense_ctx *capsense; + struct capsense_keymap *phys; + char *name; + unsigned char command; + unsigned char hex; +}; + +struct capsense_proc_entry { + char *name; + unsigned char command; + struct capsense_proc_data data[ARRAY_SIZE(phys_keymap)]; +}; + +static struct capsense_proc_entry capsense_proc_key_entries[] = { + { "CS_FINGER_TH", CAP_CS_FINGER_TH(0,0) }, + { "CS_IDAC", CAP_CS_IDAC(0,0) }, +}; + +static struct capsense_proc_entry capsense_proc_device_entries[] = { + { "DEVICE_ID", CAP_DEVICE_ID }, + { "DEVICE_STATUS", CAP_DEVICE_STATUS }, +}; + +struct capsense_proc_command { + char *name; + unsigned char command; + struct capsense_ctx *capsense; +}; + +static struct capsense_proc_command capsense_proc_commands[] = { + { "store", CAP_COMMAND_STORE_NVM }, + //{ "factory", CAP_COMMAND_RESTORE_FACTORY }, + //{ "reconfigure", CAP_COMMAND_RECONFIGURE }, +}; + + +static int capsense_proc_read(char *page, char **start, off_t off, int count, + int *eof, void *_data) +{ + struct capsense_proc_data *data = _data; + struct capsense_ctx *capsense = data->capsense; + u8 value; + int len; + + mutex_lock(&capsense->mutex); + value = i2c_smbus_read_byte_data(&capsense->client, data->command); + mutex_unlock(&capsense->mutex); + + if ( data->hex ) + len = sprintf(page, "%02X\n", value); + else + len = sprintf(page, "%u\n", value); + + len -= off; + if ( len < count ) { + *eof = 1; + if ( len <= 0 ) + return 0; + } else { + len = count; + } + + *start = page + off; + + return len; +} + + +static int capsense_proc_write(struct file *file, const char *buf, + unsigned long count, void *_data) +{ + struct capsense_proc_data *data = _data; + struct capsense_ctx *capsense = data->capsense; + char lbuf[count+1]; + u8 value; + + /* Only root can do this */ + if ( !capable(CAP_SYS_ADMIN) ) + return -EACCES; + + memset(lbuf, 0, sizeof(lbuf)); + + if (copy_from_user(lbuf, buf, count)) + return -EFAULT; + + if ( sscanf(lbuf, "%hhi", &value) == 1 ) { + mutex_lock(&capsense->mutex); + i2c_smbus_write_byte_data(&capsense->client, CAP_COMMAND_REG, CAP_COMMAND_SETUP_MODE); + i2c_smbus_write_byte_data(&capsense->client, data->command, value); + i2c_smbus_write_byte_data(&capsense->client, CAP_COMMAND_REG, CAP_COMMAND_NORMAL_MODE); + mutex_unlock(&capsense->mutex); + } + else { + printk(KERN_INFO DRIVER_NAME ": [%s/%s] Syntax error in expression\n", data->phys->name, data->name); + return -EINVAL; + } + + return count; +} + + +static inline char *str_skip_blanks(char *s) +{ + while ( (*s != '\0') && (*s <= ' ') ) + s++; + return s; +} + + +static inline char *str_skip_chars(char *s) +{ + while ( *s > ' ' ) + s++; + return s; +} + + +static int capsense_proc_write_iic(struct file *file, const char *buf, + unsigned long count, void *data) +{ + struct capsense_ctx *capsense = data; + char lbuf[count+1]; + int lnum; + char *s; + + /* Only root can do this */ + if ( !capable(CAP_SYS_ADMIN) ) + return -EACCES; + + printk(KERN_INFO DRIVER_NAME ": Reading configuration script from /proc/" DRIVER_NAME "/iic (%lu bytes)\n", count); + + memset(lbuf, 0, sizeof(lbuf)); + + if (copy_from_user(lbuf, buf, count)) + return -EFAULT; + + s = lbuf; + lnum = 0; + + while ( *s != '\0' ) { + char *line; + char operation; + unsigned char data[255]; + int size; + struct i2c_msg msg; + int ret; + + lnum++; + + /* Spot the end of the line */ + line = s; + while ( (*s != '\0') && (*s != '\n') ) + s++; + if ( *s != '\0' ) + *(s++) = '\0'; + + //printk(KERN_INFO DRIVER_NAME ": iic:%d: '%s'\n", lnum, line); + + /* Strip leading blank characters */ + line = str_skip_blanks(line); + + /* Empty or commented line: skip! */ + if ( (*line == '\0') || (*line == '#') ) + continue; + + /* Only accept write operations 'w' */ + operation = *(line++); + if ( operation != 'w' ) { + printk(KERN_ERR DRIVER_NAME ": iic:%d: Unknown operation '%c ...' -- skipped\n", lnum, operation); + continue; + } + + /* Extract data values */ + size = 0; + while ( (*line != '\0') && (size < sizeof(data)) ) { + line = str_skip_blanks(line); + if ( *line != '\0' ) + sscanf(line, "%hhx", &data[size++]); + line = str_skip_chars(line); + } + + { + int i; + + printk(KERN_DEBUG DRIVER_NAME ": iic:%d: %c", lnum, operation); + for (i = 0; i < size; i++) + printk(" %02X", data[i]); + printk("\n"); + } + + /* Do nothing if there are less than 2 data bytes (address, command) */ + if ( size < 3 ) { + printk(KERN_ERR DRIVER_NAME ": iic:%d: Too few data for operation '%c ...' -- skipped\n", lnum, operation); + continue; + } + + /* First data byte is the i2c device address: + Warn if it does not match the standard i2c address */ + if ( data[0] != CAPSENSE_I2C_ADDR ) { + printk(KERN_WARNING DRIVER_NAME ": iic:%d: WARNING - Specified i2c address (%02X) differs from standard i2c address (%02X)\n", lnum, data[0], CAPSENSE_I2C_ADDR); + } + + /* Second data byte is the capsense register: + Warn if changing the device I2C address */ + if ( data[1] == CAP_I2C_ADDR_DM ) { + printk(KERN_WARNING DRIVER_NAME ": iic:%d: WARNING - Changing i2c address to %02X (I2C_ADDR_DM=%02X)\n", lnum, data[2] & 0x7F, data[2]); + } + + /* Send command to i2c device */ + mutex_lock(&capsense->mutex); + + msg.addr = data[0]; + msg.flags = capsense->client.flags; + msg.len = size - 1; + msg.buf = data + 1; + //printk(KERN_INFO DRIVER_NAME ": iic:%d: i2c transfer: addr=0x%02X flags=0x%04X len=%d\n", lnum, msg.addr, msg.flags, msg.len); + + ret = i2c_transfer(capsense->client.adapter, &msg, 1); + if ( ret < 0 ) + printk(KERN_ERR DRIVER_NAME ": iic:%d: i2c transfer failed (%d), command rejected\n", lnum, ret); + + mutex_unlock(&capsense->mutex); + } + + return count; +} + + +static int capsense_proc_write_command(struct file *file, const char *buf, + unsigned long count, void *data) +{ + struct capsense_proc_command *command = data; + struct capsense_ctx *capsense = command->capsense; + + /* Only root can do this */ + if ( !capable(CAP_SYS_ADMIN) ) + return -EACCES; + + printk(KERN_INFO DRIVER_NAME ": %s (%02X)\n", command->name, command->command); + + mutex_lock(&capsense->mutex); + i2c_smbus_write_byte_data(&capsense->client, CAP_COMMAND_REG, CAP_COMMAND_SETUP_MODE); + i2c_smbus_write_byte_data(&capsense->client, CAP_COMMAND_REG, command->command); + i2c_smbus_write_byte_data(&capsense->client, CAP_COMMAND_REG, CAP_COMMAND_NORMAL_MODE); + mutex_unlock(&capsense->mutex); + + return count; +} + + +static int capsense_proc_init(struct capsense_ctx *capsense) +{ + struct proc_dir_entry *root; + struct proc_dir_entry *dir; + struct proc_dir_entry *ent; + int i; + + /* Create capsense proc directory */ + printk(KERN_INFO DRIVER_NAME ": Creating setup entries in /proc/" DRIVER_NAME "/\n"); + + root = proc_mkdir(DRIVER_NAME, NULL); + if ( root == NULL ) { + printk(KERN_WARNING DRIVER_NAME ": Cannot create directory /proc/" DRIVER_NAME "\n"); + return -1; + } + + root->owner = THIS_MODULE; + + /* Create iic config file dump entry */ + ent = create_proc_entry("iic", S_IFREG|S_IWUSR, root); + if ( ent == NULL ) { + printk(KERN_WARNING DRIVER_NAME ": Cannot create entry /proc/" DRIVER_NAME "/iic\n"); + return -1; + } + + ent->owner = THIS_MODULE; + ent->data = capsense; + ent->write_proc = capsense_proc_write_iic; + + /* Create commands directory */ + dir = proc_mkdir("commands", root); + if ( dir == NULL ) { + printk(KERN_WARNING DRIVER_NAME ": Cannot create directory /proc/" DRIVER_NAME "/commands\n"); + return -1; + } + + dir->owner = THIS_MODULE; + + /* Create command entries */ + for (i = 0; i < ARRAY_SIZE(capsense_proc_commands); i++) { + struct capsense_proc_command *command = &capsense_proc_commands[i]; + + command->capsense = capsense; + + ent = create_proc_entry(command->name, S_IFREG|S_IWUSR, dir); + if ( ent == NULL ) { + printk(KERN_WARNING DRIVER_NAME ": Cannot create entry /proc/" DRIVER_NAME "/commands/%s\n", command->name); + return -1; + } + + ent->owner = THIS_MODULE; + ent->data = command; + ent->write_proc = capsense_proc_write_command; + } + + /* Create device status read entries */ + for (i = 0; i < ARRAY_SIZE(capsense_proc_device_entries); i++) { + struct capsense_proc_entry *entry = &(capsense_proc_device_entries[i]); + struct capsense_proc_data *data = &(entry->data[i]); + + data->capsense = capsense; + data->phys = NULL; + data->name = entry->name; + data->command = entry->command; + data->hex = 1; + + ent = create_proc_entry(entry->name, S_IFREG|S_IRUSR, root); + if ( ent == NULL ) { + printk(KERN_WARNING DRIVER_NAME ": Cannot create entry /proc/" DRIVER_NAME "/%s\n", entry->name); + continue; + } + + ent->owner = THIS_MODULE; + ent->data = data; + ent->read_proc = capsense_proc_read; + } + + /* Create keys management directory */ + dir = proc_mkdir("keys", root); + if ( dir == NULL ) { + printk(KERN_WARNING DRIVER_NAME ": Cannot create directory /proc/" DRIVER_NAME "/keys\n"); + return -1; + } + + dir->owner = THIS_MODULE; + + /* Create keys sensitivity adjustment entries */ + for (i = 0; i < ARRAY_SIZE(phys_keymap); i++) { + struct capsense_keymap *phys = &phys_keymap[i]; + struct proc_dir_entry *subdir; + int ientry; + + subdir = proc_mkdir(phys->name, dir); + if ( subdir == NULL ) { + printk(KERN_WARNING DRIVER_NAME ": Cannot create directory /proc/" DRIVER_NAME "/keys/%s\n", phys->name); + continue; + } + + for (ientry = 0; ientry < ARRAY_SIZE(capsense_proc_key_entries); ientry++) { + struct capsense_proc_entry *entry = &(capsense_proc_key_entries[ientry]); + struct capsense_proc_data *data = &(entry->data[i]); + + data->capsense = capsense; + data->phys = phys; + data->name = entry->name; + data->command = CAP_CS(entry->command, phys->port, phys->bit); + data->hex = 0; + + ent = create_proc_entry(entry->name, S_IFREG|S_IRUSR|S_IWUSR, subdir); + if ( ent == NULL ) { + printk(KERN_WARNING DRIVER_NAME ": Cannot create entry /proc/" DRIVER_NAME "/keys/%s/%s\n", phys->name, entry->name); + continue; + } + + ent->owner = THIS_MODULE; + ent->data = data; + ent->read_proc = capsense_proc_read; + ent->write_proc = capsense_proc_write; + } + } + + return 0; +}