bkgpl/cyb4_linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
cyb4_linux/drivers/char/s3c-adc.c
mlt a55a73c5d1 linux/cybook.config: 
* Use new epaper driver instead of qisda fb driver

linux/arch/arm/mach-s3c2416/orizon-devs.c:
	* Rename old cyio-dev.c

linux/arch/arm/mach-s3c2416/mach-cybook_orizon.c,
linux/arch/arm/mach-s3c2416/orizon-devs.c:
	+ Add support for new drivers in platform device list

linux/drivers/video/Makefile,
linux/drivers/video/Kconfig,
linux/drivers/video/epaper/*:
	+ Add new epaper driver for tcon (resolve #9)

linux/drivers/input/misc/orizon_tilt.c:
	+ Add new driver for the tilt sensor

linux/drivers/char/s3c-adc.c:
	- Remove bloated code (this code must be audited, see ticket #8)

linux/include/cybook.h:
	* Extend the CAPABILITY Field
2021-11-21 00:20:20 +00:00

832 lines
28 KiB
C
Raw Blame History

/*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Copyright (c) 2004 Arnaud Patard <arnaud.patard@rtp-net.org>
* iPAQ H1940 touchscreen support
*
* ChangeLog
*
* 2004-09-05: Herbert Pötzl <herbert@13thfloor.at>
* - added clock (de-)allocation code
*
* 2005-03-06: Arnaud Patard <arnaud.patard@rtp-net.org>
* - h1940_ -> s3c24xx (this driver is now also used on the n30
* machines :P)
* - Debug messages are now enabled with the config option
* TOUCHSCREEN_S3C_DEBUG
* - Changed the way the value are read
* - Input subsystem should now work
* - Use ioremap and readl/writel
*
* 2005-03-23: Arnaud Patard <arnaud.patard@rtp-net.org>
* - Make use of some undocumented features of the touchscreen
* controller
*
*/
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/input.h>
#include <linux/init.h>
#include <linux/serio.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/miscdevice.h>
#include <linux/clk.h>
#include <linux/mutex.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/hardware.h>
#include <asm/uaccess.h>
#include <asm/arch/regs-adc.h>
#include <asm/arch/irqs.h>
#include <asm/arch/regs-s3c2416-clock.h>
#include <asm/arch/regs-gpio.h>
//#define USE_12BITS_ADC
//#define USE_10BITS_ADC
#define LEVEL0_MIN 2980 /*0%~25%*/
#define LEVEL0_MAX 3581
#define LEVEL1_MIN 3582 /*25%~50%*/ /*3.67V*/ /*3582*/
#define LEVEL1_MAX 3666
#define LEVEL2_MIN 3667 /*50%~75%*/ /*3.78V*/ /*3692*/ /*-25*/
#define LEVEL2_MAX 3778
#define LEVEL3_MIN 3779 /*75%~99%*/ /*3.92V*/ /*3829*/ /*-50*/
#define LEVEL3_MAX 4004
#define BATTERY_FULL 4005 /*100%*/ /*4.1V*/ /*4005*/
#define ADC_sample_count 100 //25 /*joey modify ADC read method to catch top 5 low value 2009/12/21*/
#define ADC_jig_voltage 3700 /*joey for ENV ADC to voltage 2010/01/15*/
#define ADC_READ_LEVEL_VAULE _IOR('S', 0x01, unsigned long)
#define ADC_READ_INPUT_SOURCE_STATUS _IOR('S', 0x02, unsigned long)
#define ADC_SET_PM_WKUP_SOURCE _IOW('S', 0x03, unsigned long)
#define ADC_READ_RAW_VAULE _IOR('S', 0x04, unsigned long)
#define ADC_POWER_OFF _IO ('S', 0x05)
#define ADC_READ_INPUT_POWER_STATUS _IOR('S', 0x06, unsigned long)
#define ADC_READ_CHARGING_STATUS _IOR('S', 0x07, unsigned long)
#define ADC_SET_PM_FUNCTION_POWER _IOW('S', 0x08, unsigned long)
#ifdef CONFIG_PM_CPU_MODE
#define ADC_SET_CPU_PM_MODE _IOW('S', 0x09, unsigned long)
#endif
#define ADC_READ_WAKEUP_SOURCE _IOR('S', 0x0A, unsigned long)
#define ADC_READ_POWER_FAIL_STATUS _IOR('S', 0x0B, unsigned long)
#define ADC_READ_LEVEL_VAULE_TOOL _IOR('S', 0x10, unsigned long) /*qisda joey add for tool read 20091207*/
#define ADC_READ_RAW_VAULE_TOOL _IOR('S', 0x11, unsigned long) /*qisda joey add for tool read 20091207*/
#define HIGH_LOW_PULSE _IOR('S', 0x12, unsigned long)
#define ADC_READ_ENV _IOR('S', 0x13, unsigned long) /*joey for ENV ADC read/write 2010/01/13*/
#define ADC_GET_ENV _IOR('S', 0x14, unsigned long) /*joey for ENV ADC read/write 2010/01/13*/
#define ADC_READ_VOLTAGE _IOR('S', 0x15, unsigned long) /*joey for ENV ADC to voltage 2010/01/15*/
/* 2010/1/21, weichen, for handling events during suspend */
#if defined (CONFIG_PM_PLATFORM_POWER_SAVING)
#define ADC_CLEAR_WAKEUP_EVENT _IOW('S', 0x20, unsigned long)
#endif
//#define ADC_INPUT_PIN _IOW('S', 0x0c, unsigned long)
/*Qisda Qube 20091103 for Smart card power control*/
#define ADC_SMARTCARD_PWR _IOR('S', 0x8F, unsigned long)
/*Qisda Qube 20091103 for Smart card power control*/
#define NON_ZERO_VALUE 0xFF
#define INPUT_SOURCE_USB 0
#define INPUT_SOURCE_CHARGER 1
#define INPUT_SOURCE_NOTHING 2
unsigned int wkup_srce = NON_ZERO_VALUE;
#ifdef CONFIG_PM_CPU_MODE
unsigned char pm_cpu_mode = 0;
#endif
/* 2010/1/21, weichen, for handling events during suspend */
#if defined (CONFIG_PM_PLATFORM_POWER_SAVING)
unsigned int g_wakeup_event_occurs = 0;
#endif
#define ADC_PM_DEBUG_PORT (0x00000003)
#define ADC_PM_WIFI (0x0000000C)
#define ADC_PM_AUDIO (0x00000030)
#define ADC_PM_SD (0x000000C0)
#define ADC_PM_TCON (0x00000300)
#define ADC_PM_USB (0x00000C00)
#define ADC_PM_TOUCH (0x0000F000)
#define ADC_PM_SMART_CARD (0x00030000)
#define ADC_PM_3G_MODULE (0x000C0000)
#define ADC_PM_I2C (0x00300000)
extern int IsWallCharger(void);
/* Qisda, ShiYong Lin, 2009/10/27, Modify for exception in IsWallCharger function {*/
extern int charging_source;
/* } Qisda, ShiYong Lin, 2009/10/27, Modify for exception in IsWallCharger function */
// Qisda, 2010/02/18, TN Wei, sleep mode wakes up for usb event {
//extern int sleeping_cha_event;
// Qisda, 2010/02/18, TN Wei, sleep mode wakes up for usb event }
#define ADC_MINOR 131
#if defined(CONFIG_CPU_S3C2443)
#define ADC_ENV(x) (S3C2410_ADCCON_PRSCVL(49))
#else
#define ADC_ENV(x) (S3C2410_ADCCON_PRSCVL(49) | S3C2410_ADCCON_SELMUX(x))
#endif
struct s3c_adc_mach_info {
int delay;
int presc;
int resol_bit;
};
/* ADC default configuration */
struct s3c_adc_mach_info s3c_adc_cfg __initdata = {
.delay = 10000,
.presc = 49,
//#if defined(CONFIG_CPU_S3C2450) || defined(CONFIG_CPU_S3C2416) || defined(CONFIG_CPU_S3C6410)
//.resol_bit = 12,
//#else
/* Qisda, ShiYong Lin, 2009/07/18, ADC and Battery Status {*/
.resol_bit = 12,
/* Qisda, ShiYong Lin, 2009/07/18, ADC and Battery Status }*/
//#endif
};
int average_adc_value_keep1 = 9999; /*joey add to keep ADC will always return lower one 2009/12/28*/
int average_adc_value_keep2 = 9999; /*joey add to keep ADC will always return lower one 2009/12/28*/
static struct clk *adc_clock;
static void __iomem *base_addr;
static DEFINE_MUTEX(adc_mutex);
static unsigned long data_for_ADCCON;
static unsigned long data_for_ADCTSC;
static int adc_port = 0;
static unsigned long env_adc_value; /*joey for ENV ADC to voltage 2010/01/15*/
static void s3c_adc_save_SFR_on_ADC(void) {
data_for_ADCCON = readl(base_addr+S3C2410_ADCCON);
data_for_ADCTSC = readl(base_addr+S3C2410_ADCTSC);
}
static void s3c_adc_restore_SFR_on_ADC(void) {
writel(data_for_ADCCON, base_addr+S3C2410_ADCCON);
writel(data_for_ADCTSC, base_addr+S3C2410_ADCTSC);
}
static int s3c_adc_open(struct inode *inode, struct file *file)
{
return 0;
}
/* Qisda, ShiYong Lin, 2009/07/18, ADC and Battery Status {*/
#ifdef USE_10BITS_ADC
static ssize_t
s3c_adc_read(struct file *file, char __user * buffer,
size_t size, loff_t * pos)
{
unsigned long data0;
unsigned long data1;
int adc_value = 0;
// printk(KERN_INFO " s3c_adc_read() entered\n");
mutex_lock(&adc_mutex);
s3c_adc_save_SFR_on_ADC();
writel(0x0, base_addr+S3C2410_ADCCON);
writel(0x58, base_addr+S3C2410_ADCTSC);
udelay(10);
writel(ADC_ENV(adc_port)|S3C2410_ADCCON_STDBM, base_addr+S3C2410_ADCCON);
#if defined(CONFIG_CPU_S3C2443)
writel(S3C2410_ADCCON_SELMUX(adc_port), base_addr+S3C2410_ADCMUX);
#endif
udelay(10);
writel(S3C2410_ADCCON_PRSCEN|ADC_ENV(adc_port)|S3C2410_ADCCON_ENABLE_START, base_addr+S3C2410_ADCCON);
do{
data0 = readl(base_addr+S3C2410_ADCCON);
}
while(!(data0 & S3C2410_ADCCON_ECFLG));
data1 = readl(base_addr+S3C2410_ADCDAT0);
adc_value = data1 & S3C2410_ADCDAT0_XPDATA_MASK;
s3c_adc_restore_SFR_on_ADC();
mutex_unlock(&adc_mutex);
// printk(KERN_INFO " Converted Value: %03d\n", adc_value);
if (copy_to_user(buffer, &adc_value, sizeof(unsigned int))) {
return -EFAULT;
}
return sizeof(unsigned int);
}
#else
unsigned long
s3c_adc_read(void)
{
unsigned long data0;
unsigned long data1;
int adc_value = 0;
// printk("s3c_adc_read entered\n");
mutex_lock(&adc_mutex);
s3c_adc_save_SFR_on_ADC();
writel(0x0, base_addr+S3C2410_ADCCON);
writel(0x58, base_addr+S3C2410_ADCTSC);
udelay(10);
writel(ADC_ENV(adc_port)|S3C2410_ADCCON_STDBM, base_addr+S3C2410_ADCCON);
#if defined(CONFIG_CPU_S3C2443)
writel(S3C2410_ADCCON_SELMUX(adc_port), base_addr+S3C2410_ADCMUX);
#else
writel(0, base_addr+0x18);
#endif
udelay(10);
writel(S3C2410_ADCCON_PRSCEN|ADC_ENV(adc_port)|S3C2410_ADCCON_ENABLE_START|S3C2450_ADCCON_RESSEL_12BIT, base_addr+S3C2410_ADCCON);
do{
data0 = readl(base_addr+S3C2410_ADCCON);
}
while(!(data0 & S3C2410_ADCCON_ECFLG));
data1 = readl(base_addr+S3C2410_ADCDAT0);
adc_value = data1 & S3C_ADCDAT1_YPDATA_MASK_12BIT;
s3c_adc_restore_SFR_on_ADC();
mutex_unlock(&adc_mutex);
// printk("Converted Value: %05d\n", adc_value);
return adc_value;
}
#endif
/* Qisda, ShiYong Lin, 2009/07/18, ADC and Battery Status }*/
void bubblesort(int *data, int n) /*joey modify ADC read method to catch top 5 low value 2009/12/21*/
{
int i, j, temp;
for (i = n - 1; i > 0; i--)
{
for (j = 0; j <= i - 1; j++)
{
if (data[j] > data[j + 1])
{
temp = data[j];
data[j] = data[j + 1];
data[j + 1] = temp;
}
}
}
}
static int s3c_adc_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
int i = 0;
int average_adc_value = 0;
int env_adc_voltage; /*joey for ENV ADC to voltage 2010/01/15*/
#ifdef CONFIG_PM_PLATFORM_POWER_SAVING
unsigned long data_mask = 0; /* BenQ, weichen, 2009/12/22, check the wakeup source of 2416 for MMI */
#else
int data_mask = 0;
#endif
unsigned int ret = -ENOIOCTLCMD;
unsigned long level = NON_ZERO_VALUE;
unsigned long input_source = NON_ZERO_VALUE;
int ADC_raw_data[ADC_sample_count]; /*joey modify ADC read method to catch top 5 low value 2009/12/21*/
#ifdef CONFIG_PM_PLATFORM_POWER_SAVING
/* BenQ, weichen, 2009/12/22, check the wakeup source of 2416 for MMI */
void __user *uarg = (void __user *) arg;
#endif
switch (cmd) {
/*Qisda Qube 20091103 for Smart card power control*/
case ADC_SMARTCARD_PWR:
if(arg==0)
{
printk("Enable smard card power\n");
s3c2410_gpio_cfgpin(S3C2410_GPC3, S3C2410_GPC3_OUTP);
s3c2410_gpio_setpin(S3C2410_GPC3,1);
s3c2410_gpio_cfgpin(S3C2410_GPH2, S3C2410_GPH2_TXD0);
s3c2410_gpio_cfgpin(S3C2410_GPH3, S3C2410_GPH3_RXD0);
}
else if(arg==3)
{
printk("Disable smard card power\n");
s3c2410_gpio_cfgpin(S3C2410_GPC3, S3C2410_GPC3_OUTP);
s3c2410_gpio_setpin(S3C2410_GPC3,0);
s3c2410_gpio_cfgpin(S3C2410_GPH2, S3C2410_GPH2_OUTP);
s3c2410_gpio_setpin(S3C2410_GPH2,0);
s3c2410_gpio_cfgpin(S3C2410_GPH3, S3C2410_GPH3_OUTP);
s3c2410_gpio_setpin(S3C2410_GPH3,0);
}
return 0;
/*Qisda Qube 20091103 for Smart card power control*/
/*
case ADC_INPUT_PIN:
adc_port = (unsigned int) arg;
if (adc_port >= 4)
printk(" %d is already reserved for TouchScreen\n", adc_port);
return 0;
*/
case ADC_READ_INPUT_SOURCE_STATUS:
//Read the level data from GPG1
//CHG_STA: 0 => no andy insertion source
// 1 => There is an insertion existing in GPG
/* Qisda, ShiYong Lin, 2009/10/27, Modify for exception in IsWallCharger function {*/
input_source = charging_source;
put_user(input_source, (unsigned long __user *)arg);
ret = 0;
/* } Qisda, ShiYong Lin, 2009/10/27, Modify for exception in IsWallCharger function */
break;
case ADC_SET_PM_WKUP_SOURCE:
wkup_srce = (unsigned long) arg;
printk("Wakeup parameter = %d\n", wkup_srce);
/* Qisda, ShiYong Lin, 2009/09/28, Add the sleep event message when sleep {*/
//s3c_keypad_pm_sleep_message_to_ap(1);
/* } Qisda, ShiYong Lin, 2009/09/28, Add the sleep event message when sleep */
ret = 0;
break;
case ADC_READ_LEVEL_VAULE:
for(i=0; i<ADC_sample_count ;i++)
{
//udelay(1000);
msleep(1); /*joey modify for asus request 2009/12/18*/
average_adc_value += s3c_adc_read(); /*old*/
////ADC_raw_data[i] = s3c_adc_read(); /*joey modify ADC read method to catch top 5 low value 2009/12/21*/ /*new*/
}
average_adc_value = average_adc_value/ADC_sample_count; /*old*/
//for(i=0; i<ADC_sample_count ;i++)
// printk("Before ADC data = %d\n", (int)ADC_raw_data[i]);
////bubblesort(ADC_raw_data, ADC_sample_count); /*new*/
//for(i=0; i<ADC_sample_count ;i++)
// printk("After ADC data = %d\n", (int)ADC_raw_data[i]);
////average_adc_value = (ADC_raw_data[1]+ADC_raw_data[2]+ADC_raw_data[3]+ADC_raw_data[4]+ADC_raw_data[5])/5; /*new*/
// if((readl(S3C2410_GPGDAT)&(1<<1)) == 0) /*no usb charger */
// {
// if(average_adc_value > average_adc_value_keep1) /*joey add to keep ADC will always return lower one 2009/12/28*/
// average_adc_value = average_adc_value_keep1;
// }
if (average_adc_value <= LEVEL0_MAX)
{
level = 0;
}
else if (average_adc_value <= LEVEL1_MAX && average_adc_value >= LEVEL1_MIN)
{
level = 1;
}
else if (average_adc_value <= LEVEL2_MAX && average_adc_value >= LEVEL2_MIN)
{
level = 2;
}
else if(average_adc_value <= LEVEL3_MAX && average_adc_value >= LEVEL3_MIN)
{
level = 3;
}
else if(average_adc_value >= BATTERY_FULL)
{
level = 4;
}
// printk("level = %d, ADC data = %d\n", (int)level, (int)average_adc_value);
put_user(level, (unsigned long __user *)arg);
// if((readl(S3C2410_GPGDAT)&(1<<1)) == 0) /*no usb charger */
// average_adc_value_keep1 = average_adc_value; /*joey add to keep ADC will always return lower one 2009/12/28*/
ret = 0;
break;
case ADC_READ_RAW_VAULE:
for(i=0; i<ADC_sample_count ;i++)
{
//udelay(1000);
msleep(1); /*joey modify for asus request 2009/12/18*/
average_adc_value += s3c_adc_read();/*old*/
////ADC_raw_data[i] = s3c_adc_read(); /*joey modify ADC read method to catch top 5 low value 2009/12/21*/ /*new*/
}
average_adc_value = average_adc_value / ADC_sample_count; /*old*/
//for(i=0; i<ADC_sample_count ;i++)
// printk("Before ADC data = %d\n", (int)ADC_raw_data[i]);
////bubblesort(ADC_raw_data, ADC_sample_count); /*new*/
//for(i=0; i<ADC_sample_count ;i++)
// printk("After ADC data = %d\n", (int)ADC_raw_data[i]);
////average_adc_value = (ADC_raw_data[1]+ADC_raw_data[2]+ADC_raw_data[3]+ADC_raw_data[4]+ADC_raw_data[5])/5; /*new*/
// if((readl(S3C2410_GPGDAT)&(1<<1)) == 0) /*no usb charger */
// {
// if(average_adc_value > average_adc_value_keep2) /*joey add to keep ADC will always return lower one 2009/12/28*/
// average_adc_value = average_adc_value_keep2;
// }
printk("ADC data = %d\n", (int)average_adc_value);
put_user(average_adc_value, (unsigned long __user *)arg);
// if((readl(S3C2410_GPGDAT)&(1<<1)) == 0) /*no usb charger */
// average_adc_value_keep2 = average_adc_value; /*joey add to keep ADC will always return lower one 2009/12/28*/
ret = 0;
break;
case ADC_READ_LEVEL_VAULE_TOOL: /*qisda joey add for tool read 20091207*/
for(i=0; i<1000 ;i++) /*qisda joey modify from 20 to 1000 20091202*/
{
udelay(1000);
average_adc_value += s3c_adc_read();
}
average_adc_value = average_adc_value/1000; /*qisda joey modify from 20 to 1000 20091202*/
if (average_adc_value <= LEVEL0_MAX)
{
level = 0;
}
else if (average_adc_value <= LEVEL1_MAX && average_adc_value >= LEVEL1_MIN)
{
level = 1;
}
else if (average_adc_value <= LEVEL2_MAX && average_adc_value >= LEVEL2_MIN)
{
level = 2;
}
else if(average_adc_value <= LEVEL3_MAX && average_adc_value >= LEVEL3_MIN)
{
level = 3;
}
else if(average_adc_value >= BATTERY_FULL)
{
level = 4;
}
// printk("level = %d, ADC data = %d\n", (int)level, (int)average_adc_value);
put_user(level, (unsigned long __user *)arg);
ret = 0;
break;
case ADC_READ_RAW_VAULE_TOOL: /*qisda joey add for tool read 20091207*/
for(i=0; i<1000 ;i++) /*qisda joey modify from 20 to 1000 20091202*/
{
udelay(1000);
average_adc_value += s3c_adc_read();
}
average_adc_value = average_adc_value / 1000; /*qisda joey modify from 20 to 1000 20091202*/
printk("ADC data = %d\n", (int)average_adc_value);
put_user(average_adc_value, (unsigned long __user *)arg);
ret = 0;
break;
case ADC_POWER_OFF:
printk("power off\n");
//writeb(0x0, 0xc8a30029); /*joey shut down SD bus power before p_keep pull low 2010/01/06*/
s3c_moviNAND_power_off();
msleep(100);
#ifdef CONFIG_QISDA_BK060B00
s3c2410_gpio_cfgpin(S3C2410_GPD14, S3C2410_GPD14_OUTP);
s3c2410_gpio_setpin(S3C2410_GPD14, 0);
#else
s3c2410_gpio_cfgpin(S3C2410_GPG0, S3C2410_GPG0_OUTP);
s3c2410_gpio_setpin(S3C2410_GPG0, 0);
#endif
ret = 0;
break;
#ifdef CONFIG_QISDA_AS090B00_EVT1
case ADC_READ_INPUT_POWER_STATUS:
data_mask = readl(S3C2410_GPHDAT);
data_mask &= 0x1<<5;
printk("GPH5 = %d\n", data_mask);
ret = put_user(data_mask, (unsigned long __user *)arg);
break;
#endif
case ADC_READ_CHARGING_STATUS:
data_mask = readl(S3C2410_GPFDAT);
data_mask &= 0x1<<6;
if(data_mask) /*shiyong joey for asus 2009/12/15*/
data_mask = 1;
else
data_mask = 0;
printk("GPF6 = %d\n", data_mask);
ret = put_user(data_mask, (unsigned long __user *)arg);
break;
case ADC_SET_PM_FUNCTION_POWER:
break;
#ifdef CONFIG_PM_CPU_MODE
case ADC_SET_CPU_PM_MODE:
// 0 ADC_CPU_DEVICE_SLEEP:
// 1 ADC_CPU_STOP:
// 2 ADC_CPU_DEEP_STOP:
// 3 ADC_CPU_IDLE:
// 4 ADC_CPU_SLEEP:
pm_cpu_mode = (unsigned char) arg;
// s3c2410_sleep_enter();
printk("cpu_pm_mode parameter = %d\n", pm_cpu_mode);
ret = 0;
break;
#endif
/* BenQ, weichen, 2009/12/22, check the wakeup source of 2416 for MMI */
case ADC_READ_WAKEUP_SOURCE:
data_mask = readl(S3C2443_WKUPSTAT);
printk("Wakeup source =0x%08lx\n", data_mask);
#ifdef CONFIG_PM_PLATFORM_POWER_SAVING
if (copy_to_user(uarg, &data_mask, sizeof(data_mask)))
return -EFAULT;
/* BenQ, weichen, 2010/1/28, clear the wakeup source of 2416 for MMI */
#if defined (CONFIG_PM_PLATFORM_POWER_SAVING)
writel(0x33, S3C2443_WKUPSTAT);
data_mask = readl(S3C2443_WKUPSTAT);
printk("Wakeup source2 =0x%08lx\n", data_mask);
#endif
#endif
ret = 0;
break;
/* BenQ, weichen, 2009/12/22, check the wakeup source of 2416 for MMI */
case ADC_READ_POWER_FAIL_STATUS:
data_mask = readl(S3C2410_GPGDAT) & (1<<5);
printk("ADC_READ_POWER_FAIL_STATUS GPG5 = %d\n", data_mask);
ret = put_user(data_mask, (unsigned long __user *)arg);
break;
case HIGH_LOW_PULSE: /*joey add for high/low pulse 2010/01/08*/
{
unsigned long percent[3]={0, 0, 0}; /*1:high sec 2:low msec 3:times*/
int i;
copy_from_user(percent, (unsigned long) arg, sizeof(unsigned long)*3);
printk("1st=%d, 2nd=%d, 3rd=%d\n", percent[0], percent[1], percent[2]);
s3c2410_gpio_cfgpin(S3C2410_GPH11, S3C2410_GPH11_OUTP);
s3c2410_gpio_pullup(S3C2410_GPH11, 2);
for(i=0; i<percent[2]; i++)
{
s3c2410_gpio_setpin(S3C2410_GPH11, 0);
printk("GPH11 pull low\n");
msleep(percent[1]);
s3c2410_gpio_setpin(S3C2410_GPH11, 1);
printk("GPH11 pull high\n");
msleep(percent[0]);
}
//ret = put_user(data_mask, (unsigned long __user *)arg);
break;
}
case ADC_GET_ENV: /*joey for ENV ADC read/write 2010/01/13*/
copy_from_user(&env_adc_value, (unsigned long) arg, sizeof(unsigned long));
printk("env_adc_value=%d\n", env_adc_value);
//ret = put_user(data_mask, (unsigned long __user *)arg);
break;
case ADC_READ_ENV: /*joey for ENV ADC read/write 2010/01/13*/
ret = put_user(env_adc_value, (unsigned long __user *)arg);
printk("env_adc_value=%d\n", env_adc_value);
break;
case ADC_READ_VOLTAGE: /*joey for ENV ADC to voltage 2010/01/15*/
if(env_adc_value > 3711 || env_adc_value < 3511)
env_adc_value = 3611;
printk("env_adc_value=%d\n", env_adc_value);
for(i=0; i<ADC_sample_count ;i++)
{
msleep(1); /*joey modify for asus request 2009/12/18*/
average_adc_value += s3c_adc_read();
}
average_adc_value = average_adc_value / ADC_sample_count;
printk("average_adc_value=%d\n", average_adc_value);
if(average_adc_value >= env_adc_value)
env_adc_voltage = ADC_jig_voltage + (average_adc_value-env_adc_value)*100/97;
else
env_adc_voltage = ADC_jig_voltage - (env_adc_value-average_adc_value)*100/97;
ret = put_user(env_adc_voltage, (unsigned long __user *)arg);
printk("env_adc_voltage=%d\n", env_adc_voltage);
break;
#if defined (CONFIG_PM_PLATFORM_POWER_SAVING)
case ADC_CLEAR_WAKEUP_EVENT:
g_wakeup_event_occurs = 0;
// Qisda, 2010/02/18, TN Wei, sleep mode wakes up for usb event {
//sleeping_cha_event = 0;
// Qisda, 2010/02/18, TN Wei, sleep mode wakes up for usb event }
printk("ADC_CLEAR_WAKEUP_EVENT: g_wakeup_event_occurs=%d\n", g_wakeup_event_occurs);
ret = 0;
break;
#endif
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
static struct file_operations s3c_adc_fops = {
.owner = THIS_MODULE,
.read = s3c_adc_read,
.open = s3c_adc_open,
.ioctl = s3c_adc_ioctl,
};
static struct miscdevice s3c_adc_miscdev = {
.minor = ADC_MINOR,
.name = "adc",
.fops = &s3c_adc_fops,
};
/*
* The functions for inserting/removing us as a module.
*/
static int __init s3c_adc_probe(struct platform_device *pdev)
{
int ret;
printk(KERN_INFO "s3c_adc_probe\n");
adc_clock = clk_get(NULL, "adc");
if (!adc_clock) {
printk(KERN_ERR "failed to get adc clock source\n");
return -ENOENT;
}
clk_enable(adc_clock);
base_addr=ioremap(S3C24XX_PA_ADC, 0x20);
if (base_addr == NULL) {
printk(KERN_ERR "Failed to remap register block\n");
return -ENOMEM;
}
if ((s3c_adc_cfg.presc&0xff) > 0)
writel(S3C2410_ADCCON_PRSCEN | S3C2410_ADCCON_PRSCVL(s3c_adc_cfg.presc&0xFF), base_addr+S3C2410_ADCCON);
else
writel(0, base_addr+S3C2410_ADCCON);
/* Qisda, ShiYong Lin, 2009/07/18, ADC and Battery Status {*/
#ifdef ADC_TEST //open for debug
tmp = readl(base_addr+S3C2410_ADCCON);
printk("tmp = %04X!\n", tmp);
tmp = tmp | 0x0080;
printk("tmp = %04X!\n", tmp);
writel(tmp, base_addr+S3C2410_ADCCON);
#endif
/* Qisda, ShiYong Lin, 2009/07/18, ADC and Battery Status }*/
/* Initialise registers */
if ((s3c_adc_cfg.delay&0xffff) > 0)
writel(s3c_adc_cfg.delay & 0xffff, base_addr+S3C2410_ADCDLY);
ret = misc_register(&s3c_adc_miscdev);
if (ret) {
printk (KERN_ERR "cannot register miscdev on minor=%d (%d)\n",
ADC_MINOR, ret);
return ret;
}
printk(KERN_INFO "S3C ADC driver successfully probed !\n");
return 0;
}
static int s3c_adc_remove(struct device *dev)
{
printk(KERN_INFO "s3c_adc_remove() of TS called !\n");
return 0;
}
#define s3c_adc_suspend NULL
#define s3c_adc_resume NULL
static struct platform_driver s3c_adc_driver = {
.probe = s3c_adc_probe,
.remove = s3c_adc_remove,
.suspend = s3c_adc_suspend,
.resume = s3c_adc_resume,
.driver = {
.owner = THIS_MODULE,
.name = "s3c2410-adc",
},
};
static char banner[] __initdata = KERN_INFO "S3C ADC driver, (c) 2007 Samsung Electronics\n";
int __init s3c_adc_init(void)
{
int ireturn = 0;
int read_pin = -99;
int i = 0;
printk(banner);
ireturn = platform_driver_register(&s3c_adc_driver);
#ifdef CONFIG_QISDA_AS090B00_EVT1
/* Qisda, ShiYong Lin, 2009/09/12, Indication for /PGOOD pin {*/
s3c2410_gpio_cfgpin(S3C2410_GPH5, 0);
s3c2410_gpio_pullup(S3C2410_GPH5, 2);
/* Qisda, ShiYong Lin, 2009/09/12, Indication for /PGOOD pin }*/
#endif
/* Qisda, ShiYong Lin, 2009/10/27, Modify for exception in IsWallCharger function {*/
/* Qisda, ShiYong Lin, 2009/09/29, Set En1 and En2 {*/
for(i=0;i<10;++i)
{
read_pin = readl(S3C2410_GPGDAT) & (1<<1);
if(read_pin != 0){
if(IsWallCharger()==0){
charging_source = 0;
//EN2
s3c2410_gpio_cfgpin(S3C2410_GPB0, S3C2410_GPB0_OUTP);
s3c2410_gpio_setpin(S3C2410_GPB0, 0);
//EN1
s3c2410_gpio_cfgpin(S3C2410_GPB4, S3C2410_GPB4_OUTP);
s3c2410_gpio_setpin(S3C2410_GPB4, 1);
}
else
{
charging_source = 1;
//EN2
s3c2410_gpio_cfgpin(S3C2410_GPB0, S3C2410_GPB0_OUTP);
s3c2410_gpio_setpin(S3C2410_GPB0, 1);
//EN1
s3c2410_gpio_cfgpin(S3C2410_GPB4, S3C2410_GPB4_OUTP);
s3c2410_gpio_setpin(S3C2410_GPB4, 0);
}
}
else{
charging_source = 2;
//EN2
s3c2410_gpio_cfgpin(S3C2410_GPB0, S3C2410_GPB0_OUTP);
s3c2410_gpio_setpin(S3C2410_GPB0, 0);
//EN1
s3c2410_gpio_cfgpin(S3C2410_GPB4, S3C2410_GPB4_OUTP);
s3c2410_gpio_setpin(S3C2410_GPB4, 1);
}
}
/*}, Qisda, ShiYong Lin, 2009/09/29, Set En1 and En2 */
/*}, Qisda, ShiYong Lin, 2009/10/27, Modify for exception in IsWallCharger function */
/* Qisda, ShiYong Lin, 2009/07/18, ADC and Battery Status {*/
#ifdef ADC_TEST
{
int i=0;
for(i=0; i<10 ;i++)
{
udelay(1000);
s3c_adc_read();
}
printk("Read ADC times = %d\n",i);
}
#else
s3c_adc_read();
#endif
/*}, Qisda, ShiYong Lin, 2009/07/18, ADC and Battery Status */
return ireturn;
}
void __exit s3c_adc_exit(void)
{
platform_driver_unregister(&s3c_adc_driver);
}
module_init(s3c_adc_init);
module_exit(s3c_adc_exit);
MODULE_AUTHOR("alinuxguy@samsung.com>");
MODULE_DESCRIPTION("s3c adc driver");
MODULE_LICENSE("GPL");
Reference in New Issue View Git Blame Copy Permalink