Initial file dump from open source releaseHEADmaster

1 files changed, 547 insertions, 0 deletions

diff --git a/drivers/thermal/sprd_pmic_2723s_thm.c b/drivers/thermal/sprd_pmic_2723s_thm.c
new file mode 100644
index 00000000..4d9d65c8
--- /dev/null
+++ b/drivers/thermal/sprd_pmic_2723s_thm.c
@@ -0,0 +1,547 @@
+/*
+ * Copyright (C) 2013 Spreadtrum Communications Inc.
+ *
+ * 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.
+ *
+ * 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 <linux/kernel.h>
+#include <linux/err.h>
+#include <soc/sprd/sci.h>
+#include <soc/sprd/sci_glb_regs.h>
+#include <linux/io.h>
+#include <soc/sprd/adi.h>
+#include "thm.h"
+#include <linux/sprd_thm.h>
+#include <soc/sprd/arch_misc.h>
+#include <soc/sprd/hardware.h>
+#include "thermal_core.h"
+#include <linux/kernel.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+#include <linux/of_device.h>
+#include <linux/io.h>
+#include <linux/sprd_thm.h>
+
+#define SPRD_THM_PMIC_DEBUG
+#ifdef SPRD_THM_PMIC_DEBUG
+#define THM_PMIC_DEBUG(format, arg...) printk("sprd PMIC thm: " "@@@" format, ## arg)
+#else
+#define THM_PMIC_DEBUG(format, arg...)
+#endif
+
+
+#define A_THM_CTRL            (0x0000)
+#define A_THM_INT_CTRL       (0x0004)
+#define A_SENSOR_CTRL         (0x0020)
+#define A_SENSOR_DET_PERI     (0x0024)
+#define A_SENSOR_INT_CTRL     (0x0028)
+#define A_SENSOR_INT_STS      (0x002C)
+#define A_SENSOR_INT_RAW_STS      (0x0030)
+#define A_SENSOR_INT_CLR      (0x0034)
+#define A_SENSOR_OVERHEAT_HOT_THRES   (0X0040)
+#define A_SENSOR_HOT2NOR__HIGHOFF_THRES   (0X0044)
+#define A_SENSOR_LOWOFF__COLD_THRES   (0X0048)
+#define A_SENSOR_TEMPER0_READ	(0x0058)
+
+#define A_SEN_OVERHEAT_INT_BIT (1 << 5)
+#define A_SEN_HOT_INT_BIT      (1 << 4)
+#define A_SEN_HOT2NOR_INT_BIT  (1 << 3)
+#define A_SEN_HIGHOFF_BIT  (1 << 2)
+#define A_SEN_LOWOFF_INT_BIT  (1 << 1)
+
+#define A_RAW_TEMP_OFFSET 8
+#define A_RAW_TEMP_RANGE_MSK  0x7F
+
+#define A_HIGH_BITS_OFFSET   4
+
+#define A_HIGH_TAB_SZ 8
+#define A_LOW_TAB_SZ  16
+
+#define A_HOT2NOR_RANGE   15
+#define A_LOCAL_SENSOR_ADDR_OFF 0x100
+#define A_DELAY_TEMPERATURE 3
+
+#define A_TSMC_DOLPHINW4T_CHIP_ID_1  0x7715A001
+#define A_TSMC_DOLPHINW4T_CHIP_ID_2  0x7715A003
+#define A_TSMC_DOLPHINWT4T_CHIP_ID_1 0x8815A001
+
+static const short a_temp_search_high_152nm[A_HIGH_TAB_SZ] =
+    { -56, -29, -2, 26, 53, 79, 106, 133 };
+static const short a_temp_search_low_152nm[A_LOW_TAB_SZ] =
+    { 0, 2, 3, 5, 7, 8, 10, 11, 13, 15, 17, 18, 20, 21, 23, 25 };
+
+#define SEN_OVERHEAT_INT_BIT (1 << 5)
+#define SEN_HOT_INT_BIT      (1 << 4)
+#define SEN_HOT2NOR_INT_BIT  (1 << 3)
+#define SEN_HIGHOFF_BIT  (1 << 2)
+#define SEN_LOWOFF_INT_BIT  (1 << 1)
+
+#define RAW_TEMP_RANGE_MSK  0x3FFF
+#define RAW_READ_RANGE_MSK  0x7FFF
+
+#define HIGH_BITS_OFFSET   4
+
+#define HOT2NOR_RANGE   15
+#define LOCAL_SENSOR_ADDR_OFF 0x100
+#define DELAY_TEMPERATURE 3
+
+#define SEN_DET_PRECISION  (0x50)
+
+#define TSMC_DOLPHINW4T_CHIP_ID_1  0x7715A001
+#define TSMC_DOLPHINW4T_CHIP_ID_2  0x7715A003
+#define TSMC_DOLPHINWT4T_CHIP_ID_1 0x8815A001
+
+#define TEMP_TO_RAM_DEGREE 8
+#define TEMP_LOW         (-40)
+#define TEMP_HIGH        (120)
+#define RAW_DATA_LOW         (623)
+#define RAW_DATA_HIGH        (1030)
+#define THM_SENOR_NUM 8
+
+//static const u32 temp_to_raw[TEMP_TO_RAM_DEGREE + 1] = { RAW_DATA_LOW, 676, 725, 777, 828, 878, 928, 980,RAW_DATA_HIGH };
+
+static int pmic_sen_cal_offset = 0;
+
+unsigned long SPRD_ADIE_THM_BASE = 0;
+unsigned int SPRD_ADIE_THM_SIZE = 0;
+
+extern int sprd_thermal_init(struct sprd_thermal_zone *pzone);
+extern void sprd_thermal_remove(struct sprd_thermal_zone *pzone);
+
+static inline int __thm_pmic_reg_write(unsigned long reg, u16 bits, u16 clear_msk);
+static inline u32 __thm_pmic_reg_read(unsigned long reg);
+
+static inline int __thm_pmic_reg_write(unsigned long reg, u16 bits, u16 clear_msk)
+{
+		sci_adi_write(reg, bits, clear_msk);
+		return 0;
+}
+
+static inline u32 __thm_pmic_reg_read(unsigned long reg)
+{
+		return sci_adi_read(reg);
+}
+static u32 sprd_thm_temp2rawdata_a(u32 sensor, int temp)
+{
+	u32 high_bits, low_bits;
+	int i;
+	const short *high_tab;
+	const short *low_tab;
+	high_tab = a_temp_search_high_152nm;
+	low_tab = a_temp_search_low_152nm;
+
+	if (temp < high_tab[0]) {
+		printk(KERN_ERR "temp over low temp:%d \n", temp);
+		return 0;
+	}
+
+	for (i = A_HIGH_TAB_SZ - 1; i >= 0; i--) {
+		if (high_tab[i] <= temp)
+			break;
+	}
+	if (i < 0) {
+		i = 0;
+	}
+	temp -= high_tab[i];
+	high_bits = i;
+
+	for (i = A_LOW_TAB_SZ - 1; i >= 0; i--) {
+		if (low_tab[i] <= temp)
+			break;
+	}
+	if (i < 0) {
+		i = 0;
+	}
+	low_bits = i;
+	return ((high_bits << HIGH_BITS_OFFSET) | low_bits);
+
+}
+static int sprd_thm_rawdata2temp_a(u32 sensor, int rawdata)
+{
+	const short *high_tab;
+	const short *low_tab;
+	high_tab = a_temp_search_high_152nm;
+	low_tab = a_temp_search_low_152nm;
+
+	return high_tab[(rawdata >> HIGH_BITS_OFFSET) & 0x07] +
+	    low_tab[rawdata & 0x0F];
+}
+
+static unsigned long sprd_pmic_thm_temp_read(struct sprd_thermal_zone *pzone)
+{
+	u32 rawdata = 0;
+	int cal_offset = 0;
+	u32 sensor = pzone->sensor_id;
+
+	rawdata = __thm_pmic_reg_read(pzone->reg_base + A_SENSOR_TEMPER0_READ);
+	cal_offset = pmic_sen_cal_offset;
+	THM_PMIC_DEBUG("A thm sensor id:%d, cal_offset:%d, rawdata:0x%x\n", sensor,
+			  cal_offset, rawdata);
+	return (sprd_thm_rawdata2temp_a(sensor, rawdata)*1000 + cal_offset*1000);
+}
+
+static int sprd_pmic_thm_hw_init(struct sprd_thermal_zone *pzone)
+{
+	unsigned long  local_sensor_addr, base_addr = 0;
+	u32 local_sen_id = 0;
+	int cal_offset = 0;
+	int i;
+	//struct sprd_thm_platform_data *trip_tab = pzone->trip_tab;
+	base_addr = pzone->reg_base;
+	local_sensor_addr = pzone->reg_base;
+
+	THM_PMIC_DEBUG( "sprd_adie_thm_hw_init 2713s_thm id:%d,base 0x%lx \n",
+		pzone->sensor_id, base_addr);
+		// adie thm en
+		sci_adi_set(ANA_REG_GLB_ARM_MODULE_EN, BIT_ANA_THM_EN);
+		sci_adi_set(ANA_REG_GLB_RTC_CLK_EN,
+			    BIT_RTC_THMA_AUTO_EN | BIT_RTC_THMA_EN |
+			    BIT_RTC_THM_EN);
+
+		// Reset Thermal
+		sci_adi_set(ANA_REG_GLB_ARM_RST,
+			    BIT_ANA_THM_SOFT_RST | BIT_ANA_THMA_SOFT_RST);
+		for(i=0; i < 10000; i++);
+		sci_adi_clr(ANA_REG_GLB_ARM_RST,
+			    BIT_ANA_THM_SOFT_RST | BIT_ANA_THMA_SOFT_RST);
+
+		cal_offset = pmic_sen_cal_offset = 0;
+		local_sen_id = 0;
+
+		__thm_pmic_reg_write((base_addr + A_THM_CTRL), 0x1 >> local_sen_id, 0);
+		__thm_pmic_reg_write((base_addr + A_THM_INT_CTRL), 0x3, 0);	//enable top int
+		__thm_pmic_reg_write((local_sensor_addr + A_SENSOR_INT_CTRL), 0, ~0);	//disable all int
+		__thm_pmic_reg_write((local_sensor_addr + A_SENSOR_INT_CLR), ~0, 0);	//clr all int
+		THM_PMIC_DEBUG( "sprd_thm_hw_init addr 0x:%lx,int ctrl 0x%x\n",
+			   	local_sensor_addr,
+			   	__thm_pmic_reg_read((local_sensor_addr + A_SENSOR_INT_CTRL)));
+
+		// Set sensor det period is 0.25S
+		__thm_pmic_reg_write((local_sensor_addr + A_SENSOR_DET_PERI), 0x2000, 0x2000);
+		__thm_pmic_reg_write((local_sensor_addr + A_SENSOR_CTRL), 0x01, 0x01);
+		// Start the sensor by set Sen_set_rdy(bit3)
+		__thm_pmic_reg_write((local_sensor_addr + A_SENSOR_CTRL), 0x8, 0x8);
+
+	return 0;
+}
+
+static int sprd_pmic_thm_hw_disable_sensor(struct sprd_thermal_zone *pzone)
+{
+	int ret = 0;
+	THM_PMIC_DEBUG("sprd_2713S_thm disable PMIC sensor \n" );
+	__thm_pmic_reg_write((unsigned long )(pzone->reg_base + A_SENSOR_CTRL), 0x0, 0x8);
+	__thm_pmic_reg_write((unsigned long )(pzone->reg_base + A_SENSOR_CTRL), 0x00, 0x01);
+
+	return ret;
+}
+
+static int sprd_pmic_thm_hw_enable_sensor(struct sprd_thermal_zone *pzone)
+{
+	int ret = 0;
+	// Sensor minitor enable
+	THM_PMIC_DEBUG("sprd_2713S_thm enable PMIC sensor  \n");
+	sci_adi_set(ANA_REG_GLB_RTC_CLK_EN,
+		BIT_RTC_THMA_AUTO_EN | BIT_RTC_THMA_EN |
+		BIT_RTC_THM_EN);
+	__thm_pmic_reg_write((unsigned long )(pzone->reg_base + A_SENSOR_CTRL), 0x01, 0x01);
+	__thm_pmic_reg_write((unsigned long )(pzone->reg_base + A_SENSOR_CTRL), 0x8, 0x8);
+
+
+	return ret;
+}
+
+
+u16 int_pmic_ctrl_reg[SPRD_MAX_SENSOR];
+static int sprd_pmic_thm_hw_suspend(struct sprd_thermal_zone *pzone)
+{
+	u32 local_sen_id = 0;
+	unsigned long  local_sensor_addr;
+	int ret = 0;
+
+	local_sensor_addr =
+	    (unsigned long ) pzone->reg_base + local_sen_id * LOCAL_SENSOR_ADDR_OFF;
+	int_pmic_ctrl_reg[pzone->sensor_id] = __thm_pmic_reg_read((local_sensor_addr + A_SENSOR_INT_CTRL));
+
+	sprd_pmic_thm_hw_disable_sensor(pzone);
+	__thm_pmic_reg_write((local_sensor_addr + A_SENSOR_INT_CTRL), 0, ~0);	//disable all int
+	__thm_pmic_reg_write((local_sensor_addr + A_SENSOR_INT_CLR), ~0, 0);	//clr all int
+	return ret;
+}
+static int sprd_pmic_thm_hw_resume(struct sprd_thermal_zone *pzone)
+{
+	u32 local_sen_id = 0;
+	unsigned long  local_sensor_addr;
+	int ret = 0;
+
+	local_sensor_addr =
+	    (unsigned long ) pzone->reg_base + local_sen_id * LOCAL_SENSOR_ADDR_OFF;
+
+	sprd_pmic_thm_hw_enable_sensor(pzone);
+	__thm_pmic_reg_write((local_sensor_addr + A_SENSOR_INT_CLR), ~0, 0);	//clr all int
+	__thm_pmic_reg_write((local_sensor_addr + A_SENSOR_INT_CTRL), int_pmic_ctrl_reg[pzone->sensor_id], ~0);	//enable int of saved
+	__thm_pmic_reg_write((local_sensor_addr + A_SENSOR_CTRL), 0x9, 0);
+
+	return ret;
+}
+
+static int sprd_pmic_thm_get_trend(struct sprd_thermal_zone *pzone, int trip, enum thermal_trend *ptrend)
+{
+	*ptrend = pzone->trend_val;
+	return 0;
+}
+
+static int sprd_pmic_thm_get_hyst(struct sprd_thermal_zone *pzone, int trip, unsigned long *physt)
+{
+	struct sprd_thm_platform_data *trip_tab = pzone->trip_tab;
+	if (trip >= trip_tab->num_trips - 2){
+	*physt = 0;
+	}else{
+	*physt = trip_tab->trip_points[trip].temp - trip_tab->trip_points[trip + 1].lowoff;
+	}
+	return 0;
+}
+
+struct thm_handle_ops sprd_pmic_ops =
+{
+	.hw_init = sprd_pmic_thm_hw_init,
+	.read_temp = sprd_pmic_thm_temp_read,
+	.get_trend = sprd_pmic_thm_get_trend,
+	.get_hyst = sprd_pmic_thm_get_hyst,
+	.suspend = sprd_pmic_thm_hw_suspend,
+	.resume = sprd_pmic_thm_hw_resume,
+};
+
+static struct sprd_thm_platform_data *thermal_detect_parse_dt(
+                         struct device *dev)
+{
+	struct sprd_thm_platform_data *pdata;
+	struct device_node *np = dev->of_node;
+	u32 trip_points_critical,trip_num;
+	char prop_name[32];
+	const char *tmp_str;
+	u32 tmp_data,tmp_lowoff;
+	int ret,i ,j = 0;
+	pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
+	if (!pdata) {
+		dev_err(dev, "could not allocate memory for platform data\n");
+		return NULL;
+	}
+	ret = of_property_read_u32(np, "trip-points-critical", &trip_points_critical);
+	if(ret){
+		dev_err(dev, "fail to get trip_points_critical\n");
+		goto fail;
+	}
+	ret = of_property_read_u32(np, "trip-num", &trip_num);
+	if(ret){
+		dev_err(dev, "fail to get trip_num\n");
+		goto fail;
+	}
+	for (i = 0; i <trip_num-1; ++i) {
+		sprintf(prop_name, "trip%d-temp-active", i);
+		if (of_property_read_u32(np, prop_name, &tmp_data)){
+			dev_err(dev, "fail to get trip%d-temp-active\n",i);
+			goto fail;
+		}
+
+		pdata->trip_points[i].temp = tmp_data;
+        sprintf(prop_name, "trip%d-temp-lowoff", i);
+		if (of_property_read_u32(np, prop_name, &tmp_lowoff)){
+			dev_err(dev, "fail to get trip%d-temp-lowoff\n",i);
+			goto fail;
+		}
+		pdata->trip_points[i].lowoff = tmp_lowoff;
+		sprintf(prop_name, "trip%d-type", i);
+		if (of_property_read_string(np, prop_name, &tmp_str))
+			goto  fail;
+
+		if (!strcmp(tmp_str, "active"))
+			pdata->trip_points[i].type = THERMAL_TRIP_ACTIVE;
+		else if (!strcmp(tmp_str, "passive"))
+			pdata->trip_points[i].type = THERMAL_TRIP_PASSIVE;
+		else if (!strcmp(tmp_str, "hot"))
+			pdata->trip_points[i].type = THERMAL_TRIP_HOT;
+		else if (!strcmp(tmp_str, "critical"))
+			pdata->trip_points[i].type = THERMAL_TRIP_CRITICAL;
+		else
+			goto  fail;
+
+		sprintf(prop_name, "trip%d-cdev-num", i);
+		if (of_property_read_u32(np, prop_name, &tmp_data))
+			goto  fail;
+		for (j = 0; j < tmp_data; j++) {
+			sprintf(prop_name, "trip%d-cdev-name%d", i, j);
+			if (of_property_read_string(np, prop_name, &tmp_str))
+				goto  fail;
+			strcpy(pdata->trip_points[i].cdev_name[j], tmp_str);
+			dev_info(dev,"cdev name: %s \n", pdata->trip_points[i].cdev_name[j]);
+		}
+		dev_info(dev, "trip[%d] temp: %lu lowoff: %lu\n",
+					i, pdata->trip_points[i].temp, pdata->trip_points[i].lowoff);
+	}
+	pdata->trip_points[i].temp = trip_points_critical;
+	pdata->trip_points[i].type = THERMAL_TRIP_CRITICAL;
+	dev_info(dev, "trip[%d] temp: %lu \n",
+					i, pdata->trip_points[i].temp);
+	pdata->num_trips = trip_num;
+
+	return pdata;
+
+fail:
+	kfree(pdata);
+	return NULL;
+
+}
+
+
+static int sprd_adi_thm_probe(struct platform_device *pdev)
+{
+	struct sprd_thermal_zone *pzone = NULL;
+	struct sprd_thm_platform_data *ptrips = NULL;
+	struct resource *res;
+	const char *thm_name;
+	int ret,temp_interval,sensor_id;
+	unsigned long adie_thm_base;
+	struct device_node *np = pdev->dev.of_node;
+	if (!np) {
+		dev_err(&pdev->dev, "device node not found\n");
+		return -EINVAL;
+	}
+	printk("sprd_adi_thm_probe start\n");
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	adie_thm_base = (unsigned long)devm_ioremap_resource(&pdev->dev, res);
+	if (!adie_thm_base) {
+		pr_err("thermal ioremap failed!\n");
+		return -ENOMEM;
+	}
+#if 0
+	pdev->id = of_alias_get_id(np, "thmzone");
+	printk(KERN_INFO " sprd_thermal_probe id:%d\n", pdev->id);
+	if (unlikely(pdev->id < 0 || pdev->id >= THM_SENOR_NUM)) {
+		dev_err(&pdev->dev, "does not support id %d\n", pdev->id);
+		return -ENXIO;
+	}
+#endif
+	ret = of_property_read_u32(np, "temp-inteval", &temp_interval);
+	if(ret){
+		dev_err(&pdev->dev, "fail to get temp-inteval\n");
+		return -EINVAL;
+	}
+	ret = of_property_read_u32(np, "id", &sensor_id);
+	if (ret) {
+		dev_err(&pdev->dev, "fail to get id\n");
+		return -EINVAL;
+	}
+	ptrips = thermal_detect_parse_dt(&pdev->dev);
+	if (!ptrips){
+	dev_err(&pdev->dev, "not found ptrips\n");
+		return -EINVAL;
+	}
+	pzone = devm_kzalloc(&pdev->dev, sizeof(*pzone), GFP_KERNEL);
+	mutex_init(&pzone->th_lock);
+	mutex_lock(&pzone->th_lock);
+	if (!pzone)
+		return -ENOMEM;
+	of_property_read_string(np, "thermal-name",&thm_name);
+	strcpy(pzone->thermal_zone_name, thm_name);
+	printk("the thermal-name1 is %s\n",pzone->thermal_zone_name);
+	pzone->reg_base = (unsigned long) ANA_THM_BASE;
+	pzone->trip_tab = ptrips;
+	pzone->temp_inteval = temp_interval;
+	pzone->sensor_id = sensor_id;
+	pzone->ops = &sprd_pmic_ops;
+	ret = sprd_pmic_thm_hw_init(pzone);
+	if(ret){
+		dev_err(&pdev->dev, " pzone hw init error id =%d\n",pzone->sensor_id);
+		return -ENODEV;
+	}
+    ret = sprd_thermal_init(pzone);
+	if(ret){
+		dev_err(&pdev->dev, " pzone sw init error id =%d\n",pzone->sensor_id);
+		return -ENODEV;
+	}
+	platform_set_drvdata(pdev, pzone);
+	mutex_unlock(&pzone->th_lock);
+	printk("sprd_adi_thm_probe end\n");
+	return 0;
+}
+
+static int sprd_adi_thm_remove(struct platform_device *pdev)
+{
+	struct sprd_thermal_zone *pzone = platform_get_drvdata(pdev);
+	sprd_thermal_remove(pzone);
+	return 0;
+}
+
+static int sprd_adi_thm_suspend(struct platform_device *pdev,
+				pm_message_t state)
+{
+	struct sprd_thermal_zone *pzone = platform_get_drvdata(pdev);
+	//flush_delayed_work(&pzone->thm_logtime_work);
+	flush_delayed_work(&pzone->thm_read_work);
+	flush_delayed_work(&pzone->resume_delay_work);
+	pzone->ops->suspend(pzone);
+	return 0;
+}
+
+static int sprd_adi_thm_resume(struct platform_device *pdev)
+{
+
+	struct sprd_thermal_zone *pzone = platform_get_drvdata(pdev);
+	schedule_delayed_work(&pzone->resume_delay_work, (HZ * 1));
+	schedule_delayed_work(&pzone->thm_read_work, (HZ * 5));
+	//schedule_delayed_work(&pzone->thm_logtime_work, (HZ * 7));
+	//pzone->ops->resume(pzone);
+	return 0;
+}
+
+static const struct of_device_id thermal_of_match[] = {
+	{ .compatible = "sprd,sc2723-thermal", },
+       {}
+};
+
+static struct platform_driver sprd_thermal_driver = {
+	.probe = sprd_adi_thm_probe,
+	.suspend = sprd_adi_thm_suspend,
+	.resume = sprd_adi_thm_resume,
+	.remove = sprd_adi_thm_remove,
+	.driver = {
+		   .owner = THIS_MODULE,
+		   .name = "sc2723-thermal",
+#ifdef CONFIG_OF
+			.of_match_table = of_match_ptr(thermal_of_match),
+#endif
+		   },
+};
+static int __init sprd_adi_thermal_init(void)
+{
+	return platform_driver_register(&sprd_thermal_driver);
+}
+
+static void __exit sprd_adi_thermal_exit(void)
+{
+	platform_driver_unregister(&sprd_thermal_driver);
+}
+
+device_initcall_sync(sprd_adi_thermal_init);
+module_exit(sprd_adi_thermal_exit);
+
+MODULE_AUTHOR("Freeman Liu <freeman.liu@spreadtrum.com>");
+MODULE_DESCRIPTION("sprd thermal driver");
+MODULE_LICENSE("GPL");
+
+
+
+