diff options
author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-06-22 09:26:29 -0700 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-06-22 09:26:29 -0700 |
commit | f7ebc4dcdeb1be7209d94a8c0dc602ab24e36ae1 (patch) | |
tree | 650c1748df35728e2bce1b8c26c064bfea272f63 /drivers/input/mouse/elan_i2c_core.c | |
parent | 469d7d22cea146e40efe8c330e5164b4d8f13934 (diff) | |
parent | 84c88ef9affb34f10cb5b66b07e2d496845d1c28 (diff) |
Merge branch 'next' into for-linus
Prepare first round of input updates for 4.2 merge window.
Diffstat (limited to 'drivers/input/mouse/elan_i2c_core.c')
-rw-r--r-- | drivers/input/mouse/elan_i2c_core.c | 63 |
1 files changed, 54 insertions, 9 deletions
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c index fd5068b2542d..62641f2adaf7 100644 --- a/drivers/input/mouse/elan_i2c_core.c +++ b/drivers/input/mouse/elan_i2c_core.c @@ -4,7 +4,7 @@ * Copyright (c) 2013 ELAN Microelectronics Corp. * * Author: 林政維 (Duson Lin) <dusonlin@emc.com.tw> - * Version: 1.5.7 + * Version: 1.5.9 * * Based on cyapa driver: * copyright (c) 2011-2012 Cypress Semiconductor, Inc. @@ -40,7 +40,7 @@ #include "elan_i2c.h" #define DRIVER_NAME "elan_i2c" -#define ELAN_DRIVER_VERSION "1.5.7" +#define ELAN_DRIVER_VERSION "1.5.9" #define ETP_MAX_PRESSURE 255 #define ETP_FWIDTH_REDUCE 90 #define ETP_FINGER_WIDTH 15 @@ -83,6 +83,9 @@ struct elan_tp_data { u16 fw_checksum; int pressure_adjustment; u8 mode; + u8 ic_type; + u16 fw_vaildpage_count; + u16 fw_signature_address; bool irq_wake; @@ -91,6 +94,29 @@ struct elan_tp_data { bool baseline_ready; }; +static int elan_get_fwinfo(u8 ic_type, u16 *vaildpage_count, + u16 *signature_address) +{ + switch(ic_type) { + case 0x09: + *vaildpage_count = 768; + break; + case 0x0D: + *vaildpage_count = 896; + break; + default: + /* unknown ic type clear value */ + *vaildpage_count = 0; + *signature_address = 0; + return -ENXIO; + } + + *signature_address = + (*vaildpage_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; @@ -221,7 +247,8 @@ static int elan_query_device_info(struct elan_tp_data *data) 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; @@ -234,6 +261,14 @@ static int elan_query_device_info(struct elan_tp_data *data) if (error) return error; + error = elan_get_fwinfo(data->ic_type, &data->fw_vaildpage_count, + &data->fw_signature_address); + if (error) { + dev_err(&data->client->dev, + "unknown ic type %d\n", data->ic_type); + return error; + } + return 0; } @@ -318,7 +353,7 @@ static int __elan_update_firmware(struct elan_tp_data *data, 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_vaildpage_count; i++) { u16 checksum = 0; const u8 *page = &fw->data[i * ETP_FW_PAGE_SIZE]; @@ -403,7 +438,8 @@ static ssize_t elan_sysfs_read_product_id(struct device *dev, 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, @@ -442,19 +478,28 @@ static ssize_t elan_sysfs_update_fw(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); + /* 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, |