* Copyright (c) 2013 ELAN Microelectronics Corp.
*
* Author: 林政維 (Duson Lin) <dusonlin@emc.com.tw>
- * Version: 1.5.7
+ * Version: 1.6.0
*
* Based on cyapa driver:
* copyright (c) 2011-2012 Cypress Semiconductor, Inc.
#include "elan_i2c.h"
#define DRIVER_NAME "elan_i2c"
-#define ELAN_DRIVER_VERSION "1.5.7"
+#define ELAN_DRIVER_VERSION "1.6.1"
+#define ELAN_VENDOR_ID 0x04f3
#define ETP_MAX_PRESSURE 255
#define ETP_FWIDTH_REDUCE 90
#define ETP_FINGER_WIDTH 15
unsigned int x_res;
unsigned int y_res;
- u8 product_id;
+ u16 product_id;
u8 fw_version;
u8 sm_version;
u8 iap_version;
u16 fw_checksum;
int pressure_adjustment;
u8 mode;
+ u8 ic_type;
+ u16 fw_validpage_count;
+ u16 fw_signature_address;
bool irq_wake;
bool baseline_ready;
};
+static int elan_get_fwinfo(u8 iap_version, u16 *validpage_count,
+ u16 *signature_address)
+{
+ switch (iap_version) {
+ case 0x00:
+ case 0x06:
+ case 0x08:
+ *validpage_count = 512;
+ break;
+ case 0x03:
+ case 0x07:
+ case 0x09:
+ case 0x0A:
+ case 0x0B:
+ case 0x0C:
+ *validpage_count = 768;
+ break;
+ case 0x0D:
+ *validpage_count = 896;
+ break;
+ case 0x0E:
+ *validpage_count = 640;
+ break;
+ default:
+ /* unknown ic type clear value */
+ *validpage_count = 0;
+ *signature_address = 0;
+ return -ENXIO;
+ }
+
+ *signature_address =
+ (*validpage_count * ETP_FW_PAGE_SIZE) - ETP_FW_SIGNATURE_SIZE;
+
+ return 0;
+}
+
static int elan_enable_power(struct elan_tp_data *data)
{
int repeat = ETP_RETRY_COUNT;
if (error)
return error;
- error = data->ops->get_sm_version(data->client, &data->sm_version);
+ error = data->ops->get_sm_version(data->client, &data->ic_type,
+ &data->sm_version);
if (error)
return error;
if (error)
return error;
+ error = elan_get_fwinfo(data->iap_version, &data->fw_validpage_count,
+ &data->fw_signature_address);
+ if (error)
+ dev_warn(&data->client->dev,
+ "unexpected iap version %#04x (ic type: %#04x), firmware update will not work\n",
+ data->iap_version, data->ic_type);
+
return 0;
}
iap_start_addr = get_unaligned_le16(&fw->data[ETP_IAP_START_ADDR * 2]);
boot_page_count = (iap_start_addr * 2) / ETP_FW_PAGE_SIZE;
- for (i = boot_page_count; i < ETP_FW_VAILDPAGE_COUNT; i++) {
+ for (i = boot_page_count; i < data->fw_validpage_count; i++) {
u16 checksum = 0;
const u8 *page = &fw->data[i * ETP_FW_PAGE_SIZE];
struct i2c_client *client = to_i2c_client(dev);
struct elan_tp_data *data = i2c_get_clientdata(client);
- return sprintf(buf, "%d.0\n", data->product_id);
+ return sprintf(buf, ETP_PRODUCT_ID_FORMAT_STRING "\n",
+ data->product_id);
}
static ssize_t elan_sysfs_read_fw_ver(struct device *dev,
{
struct elan_tp_data *data = dev_get_drvdata(dev);
const struct firmware *fw;
+ char *fw_name;
int error;
const u8 *fw_signature;
static const u8 signature[] = {0xAA, 0x55, 0xCC, 0x33, 0xFF, 0xFF};
- error = request_firmware(&fw, ETP_FW_NAME, dev);
+ if (data->fw_validpage_count == 0)
+ return -EINVAL;
+
+ /* Look for a firmware with the product id appended. */
+ fw_name = kasprintf(GFP_KERNEL, ETP_FW_NAME, data->product_id);
+ if (!fw_name) {
+ dev_err(dev, "failed to allocate memory for firmware name\n");
+ return -ENOMEM;
+ }
+
+ dev_info(dev, "requesting fw '%s'\n", fw_name);
+ error = request_firmware(&fw, fw_name, dev);
+ kfree(fw_name);
if (error) {
- dev_err(dev, "cannot load firmware %s: %d\n",
- ETP_FW_NAME, error);
+ dev_err(dev, "failed to request firmware: %d\n", error);
return error;
}
/* Firmware file must match signature data */
- fw_signature = &fw->data[ETP_FW_SIGNATURE_ADDRESS];
+ fw_signature = &fw->data[data->fw_signature_address];
if (memcmp(fw_signature, signature, sizeof(signature)) != 0) {
dev_err(dev, "signature mismatch (expected %*ph, got %*ph)\n",
(int)sizeof(signature), signature,
*/
static void elan_report_contact(struct elan_tp_data *data,
int contact_num, bool contact_valid,
- bool hover_event, u8 *finger_data)
+ u8 *finger_data)
{
struct input_dev *input = data->input;
unsigned int pos_x, pos_y;
input_mt_report_slot_state(input, MT_TOOL_FINGER, true);
input_report_abs(input, ABS_MT_POSITION_X, pos_x);
input_report_abs(input, ABS_MT_POSITION_Y, data->max_y - pos_y);
- input_report_abs(input, ABS_MT_DISTANCE, hover_event);
- input_report_abs(input, ABS_MT_PRESSURE,
- hover_event ? 0 : scaled_pressure);
+ input_report_abs(input, ABS_MT_PRESSURE, scaled_pressure);
input_report_abs(input, ABS_TOOL_WIDTH, mk_x);
input_report_abs(input, ABS_MT_TOUCH_MAJOR, major);
input_report_abs(input, ABS_MT_TOUCH_MINOR, minor);
hover_event = hover_info & 0x40;
for (i = 0; i < ETP_MAX_FINGERS; i++) {
contact_valid = tp_info & (1U << (3 + i));
- elan_report_contact(data, i, contact_valid, hover_event,
- finger_data);
+ elan_report_contact(data, i, contact_valid, finger_data);
if (contact_valid)
finger_data += ETP_FINGER_DATA_LEN;
}
input_report_key(input, BTN_LEFT, tp_info & 0x01);
+ input_report_abs(input, ABS_DISTANCE, hover_event != 0);
input_mt_report_pointer_emulation(input, true);
input_sync(input);
}
input->name = "Elan Touchpad";
input->id.bustype = BUS_I2C;
+ input->id.vendor = ELAN_VENDOR_ID;
+ input->id.product = data->product_id;
input_set_drvdata(input, data);
error = input_mt_init_slots(input, ETP_MAX_FINGERS,
input_abs_set_res(input, ABS_Y, data->y_res);
input_set_abs_params(input, ABS_PRESSURE, 0, ETP_MAX_PRESSURE, 0, 0);
input_set_abs_params(input, ABS_TOOL_WIDTH, 0, ETP_FINGER_WIDTH, 0, 0);
+ input_set_abs_params(input, ABS_DISTANCE, 0, 1, 0, 0);
/* And MT parameters */
input_set_abs_params(input, ABS_MT_POSITION_X, 0, data->max_x, 0, 0);
ETP_FINGER_WIDTH * max_width, 0, 0);
input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0,
ETP_FINGER_WIDTH * min_width, 0, 0);
- input_set_abs_params(input, ABS_MT_DISTANCE, 0, 1, 0, 0);
data->input = input;
#ifdef CONFIG_ACPI
static const struct acpi_device_id elan_acpi_id[] = {
{ "ELAN0000", 0 },
+ { "ELAN0100", 0 },
+ { "ELAN0600", 0 },
+ { "ELAN1000", 0 },
{ }
};
MODULE_DEVICE_TABLE(acpi, elan_acpi_id);
static struct i2c_driver elan_driver = {
.driver = {
.name = DRIVER_NAME,
- .owner = THIS_MODULE,
.pm = &elan_pm_ops,
.acpi_match_table = ACPI_PTR(elan_acpi_id),
.of_match_table = of_match_ptr(elan_of_match),
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = elan_probe,
.id_table = elan_id,
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